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Diffstat (limited to 'drivers/mtd/maps/dbox2-flash.c')
-rw-r--r--drivers/mtd/maps/dbox2-flash.c125
1 files changed, 0 insertions, 125 deletions
diff --git a/drivers/mtd/maps/dbox2-flash.c b/drivers/mtd/maps/dbox2-flash.c
deleted file mode 100644
index 92a9c7fac99..00000000000
--- a/drivers/mtd/maps/dbox2-flash.c
+++ /dev/null
@@ -1,125 +0,0 @@
-/*
- * $Id: dbox2-flash.c,v 1.14 2005/11/07 11:14:26 gleixner Exp $
- *
- * D-Box 2 flash driver
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <asm/io.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/map.h>
-#include <linux/mtd/partitions.h>
-#include <linux/errno.h>
-
-/* partition_info gives details on the logical partitions that the split the
- * single flash device into. If the size if zero we use up to the end of the
- * device. */
-static struct mtd_partition partition_info[]= {
- {
- .name = "BR bootloader",
- .size = 128 * 1024,
- .offset = 0,
- .mask_flags = MTD_WRITEABLE
- },
- {
- .name = "FLFS (U-Boot)",
- .size = 128 * 1024,
- .offset = MTDPART_OFS_APPEND,
- .mask_flags = 0
- },
- {
- .name = "Root (SquashFS)",
- .size = 7040 * 1024,
- .offset = MTDPART_OFS_APPEND,
- .mask_flags = 0
- },
- {
- .name = "var (JFFS2)",
- .size = 896 * 1024,
- .offset = MTDPART_OFS_APPEND,
- .mask_flags = 0
- },
- {
- .name = "Flash without bootloader",
- .size = MTDPART_SIZ_FULL,
- .offset = 128 * 1024,
- .mask_flags = 0
- },
- {
- .name = "Complete Flash",
- .size = MTDPART_SIZ_FULL,
- .offset = 0,
- .mask_flags = MTD_WRITEABLE
- }
-};
-
-#define NUM_PARTITIONS ARRAY_SIZE(partition_info)
-
-#define WINDOW_ADDR 0x10000000
-#define WINDOW_SIZE 0x800000
-
-static struct mtd_info *mymtd;
-
-
-struct map_info dbox2_flash_map = {
- .name = "D-Box 2 flash memory",
- .size = WINDOW_SIZE,
- .bankwidth = 4,
- .phys = WINDOW_ADDR,
-};
-
-int __init init_dbox2_flash(void)
-{
- printk(KERN_NOTICE "D-Box 2 flash driver (size->0x%X mem->0x%X)\n", WINDOW_SIZE, WINDOW_ADDR);
- dbox2_flash_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE);
-
- if (!dbox2_flash_map.virt) {
- printk("Failed to ioremap\n");
- return -EIO;
- }
- simple_map_init(&dbox2_flash_map);
-
- // Probe for dual Intel 28F320 or dual AMD
- mymtd = do_map_probe("cfi_probe", &dbox2_flash_map);
- if (!mymtd) {
- // Probe for single Intel 28F640
- dbox2_flash_map.bankwidth = 2;
-
- mymtd = do_map_probe("cfi_probe", &dbox2_flash_map);
- }
-
- if (mymtd) {
- mymtd->owner = THIS_MODULE;
-
- /* Create MTD devices for each partition. */
- add_mtd_partitions(mymtd, partition_info, NUM_PARTITIONS);
-
- return 0;
- }
-
- iounmap((void *)dbox2_flash_map.virt);
- return -ENXIO;
-}
-
-static void __exit cleanup_dbox2_flash(void)
-{
- if (mymtd) {
- del_mtd_partitions(mymtd);
- map_destroy(mymtd);
- }
- if (dbox2_flash_map.virt) {
- iounmap((void *)dbox2_flash_map.virt);
- dbox2_flash_map.virt = 0;
- }
-}
-
-module_init(init_dbox2_flash);
-module_exit(cleanup_dbox2_flash);
-
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Kári Davíðsson <kd@flaga.is>, Bastian Blank <waldi@tuxbox.org>, Alexander Wild <wild@te-elektronik.com>");
-MODULE_DESCRIPTION("MTD map driver for D-Box 2 board");
s/Makefile?id2=cef5076987dd545ac74f4efcf1c962be8eac34b0'>sound/core/oss/Makefile7
-rw-r--r--sound/core/oss/copy.c31
-rw-r--r--sound/core/oss/io.c27
-rw-r--r--sound/core/oss/linear.c116
-rw-r--r--sound/core/oss/mixer_oss.c275
-rw-r--r--sound/core/oss/mulaw.c106
-rw-r--r--sound/core/oss/pcm_oss.c1263
-rw-r--r--sound/core/oss/pcm_plugin.c402
-rw-r--r--sound/core/oss/pcm_plugin.h45
-rw-r--r--sound/core/oss/plugin_ops.h536
-rw-r--r--sound/core/oss/rate.c121
-rw-r--r--sound/core/oss/route.c496
-rw-r--r--sound/core/pcm.c681
-rw-r--r--sound/core/pcm_compat.c44
-rw-r--r--sound/core/pcm_dmaengine.c369
-rw-r--r--sound/core/pcm_lib.c2193
-rw-r--r--sound/core/pcm_memory.c172
-rw-r--r--sound/core/pcm_misc.c226
-rw-r--r--sound/core/pcm_native.c1303
-rw-r--r--sound/core/pcm_timer.c36
-rw-r--r--sound/core/rawmidi.c777
-rw-r--r--sound/core/rtctimer.c41
-rw-r--r--sound/core/seq/Kconfig16
-rw-r--r--sound/core/seq/Makefile31
-rw-r--r--sound/core/seq/instr/Makefile23
-rw-r--r--sound/core/seq/instr/ainstr_fm.c156
-rw-r--r--sound/core/seq/instr/ainstr_gf1.c360
-rw-r--r--sound/core/seq/instr/ainstr_iw.c624
-rw-r--r--sound/core/seq/instr/ainstr_simple.c216
-rw-r--r--sound/core/seq/oss/Makefile2
-rw-r--r--sound/core/seq/oss/seq_oss.c72
-rw-r--r--sound/core/seq/oss/seq_oss_device.h14
-rw-r--r--sound/core/seq/oss/seq_oss_event.c14
-rw-r--r--sound/core/seq/oss/seq_oss_init.c88
-rw-r--r--sound/core/seq/oss/seq_oss_ioctl.c18
-rw-r--r--sound/core/seq/oss/seq_oss_midi.c24
-rw-r--r--sound/core/seq/oss/seq_oss_readq.c5
-rw-r--r--sound/core/seq/oss/seq_oss_synth.c29
-rw-r--r--sound/core/seq/oss/seq_oss_timer.c8
-rw-r--r--sound/core/seq/oss/seq_oss_writeq.c7
-rw-r--r--sound/core/seq/seq.c36
-rw-r--r--sound/core/seq/seq_clientmgr.c182
-rw-r--r--sound/core/seq/seq_clientmgr.h4
-rw-r--r--sound/core/seq/seq_compat.c13
-rw-r--r--sound/core/seq/seq_device.c140
-rw-r--r--sound/core/seq/seq_dummy.c15
-rw-r--r--sound/core/seq/seq_fifo.c20
-rw-r--r--sound/core/seq/seq_info.c19
-rw-r--r--sound/core/seq/seq_instr.c653
-rw-r--r--sound/core/seq/seq_lock.c8
-rw-r--r--sound/core/seq/seq_memory.c35
-rw-r--r--sound/core/seq/seq_memory.h6
-rw-r--r--sound/core/seq/seq_midi.c70
-rw-r--r--sound/core/seq/seq_midi_emul.c23
-rw-r--r--sound/core/seq/seq_midi_event.c111
-rw-r--r--sound/core/seq/seq_ports.c101
-rw-r--r--sound/core/seq/seq_prioq.c20
-rw-r--r--sound/core/seq/seq_queue.c17
-rw-r--r--sound/core/seq/seq_queue.h2
-rw-r--r--sound/core/seq/seq_system.c3
-rw-r--r--sound/core/seq/seq_timer.c77
-rw-r--r--sound/core/seq/seq_timer.h7
-rw-r--r--sound/core/seq/seq_virmidi.c20
-rw-r--r--sound/core/sgbuf.c104
-rw-r--r--sound/core/sound.c391
-rw-r--r--sound/core/sound_oss.c79
-rw-r--r--sound/core/timer.c389
-rw-r--r--sound/core/timer_compat.c9
-rw-r--r--sound/core/vmaster.c486
87 files changed, 9884 insertions, 9205 deletions
diff --git a/sound/core/Kconfig b/sound/core/Kconfig
index f79755f77a8..313f22e9d92 100644
--- a/sound/core/Kconfig
+++ b/sound/core/Kconfig
@@ -1,24 +1,31 @@
# ALSA soundcard-configuration
config SND_TIMER
tristate
- depends on SND
config SND_PCM
tristate
select SND_TIMER
- depends on SND
+
+config SND_DMAENGINE_PCM
+ tristate
config SND_HWDEP
tristate
- depends on SND
config SND_RAWMIDI
tristate
- depends on SND
+
+config SND_COMPRESS_OFFLOAD
+ tristate
+
+# To be effective this also requires INPUT - users should say:
+# select SND_JACK if INPUT=y || INPUT=SND
+# to avoid having to force INPUT on.
+config SND_JACK
+ bool
config SND_SEQUENCER
tristate "Sequencer support"
- depends on SND
select SND_TIMER
help
Say Y or M to enable MIDI sequencer and router support. This
@@ -43,12 +50,11 @@ config SND_SEQ_DUMMY
will be called snd-seq-dummy.
config SND_OSSEMUL
+ select SOUND_OSS_CORE
bool
- depends on SND
config SND_MIXER_OSS
tristate "OSS Mixer API"
- depends on SND
select SND_OSSEMUL
help
To enable OSS mixer API emulation (/dev/mixer*), say Y here
@@ -61,7 +67,6 @@ config SND_MIXER_OSS
config SND_PCM_OSS
tristate "OSS PCM (digital audio) API"
- depends on SND
select SND_OSSEMUL
select SND_PCM
help
@@ -73,9 +78,18 @@ config SND_PCM_OSS
To compile this driver as a module, choose M here: the module
will be called snd-pcm-oss.
+config SND_PCM_OSS_PLUGINS
+ bool "OSS PCM (digital audio) API - Include plugin system"
+ depends on SND_PCM_OSS
+ default y
+ help
+ If you disable this option, the ALSA's OSS PCM API will not
+ support conversion of channels, formats and rates. It will
+ behave like most of new OSS/Free drivers in 2.4/2.6 kernels.
+
config SND_SEQUENCER_OSS
bool "OSS Sequencer API"
- depends on SND && SND_SEQUENCER
+ depends on SND_SEQUENCER
select SND_OSSEMUL
help
Say Y here to enable OSS sequencer emulation (both
@@ -83,12 +97,33 @@ config SND_SEQUENCER_OSS
Many programs still use the OSS API, so say Y.
+ If you choose M in "Sequencer support" (SND_SEQUENCER),
+ this will be compiled as a module. The module will be called
+ snd-seq-oss.
+
+config SND_HRTIMER
+ tristate "HR-timer backend support"
+ depends on HIGH_RES_TIMERS
+ select SND_TIMER
+ help
+ Say Y here to enable HR-timer backend for ALSA timer. ALSA uses
+ the hrtimer as a precise timing source. The ALSA sequencer code
+ also can use this timing source.
+
To compile this driver as a module, choose M here: the module
- will be called snd-seq-oss.
+ will be called snd-hrtimer.
+
+config SND_SEQ_HRTIMER_DEFAULT
+ bool "Use HR-timer as default sequencer timer"
+ depends on SND_HRTIMER && SND_SEQUENCER
+ default y
+ help
+ Say Y here to use the HR-timer backend as the default sequencer
+ timer.
config SND_RTCTIMER
tristate "RTC Timer support"
- depends on SND && RTC
+ depends on RTC
select SND_TIMER
help
Say Y here to enable RTC timer support for ALSA. ALSA uses
@@ -99,9 +134,13 @@ config SND_RTCTIMER
To compile this driver as a module, choose M here: the module
will be called snd-rtctimer.
+ Note that this option is exclusive with the new RTC drivers
+ (CONFIG_RTC_CLASS) since this requires the old API.
+
config SND_SEQ_RTCTIMER_DEFAULT
bool "Use RTC as default sequencer timer"
depends on SND_RTCTIMER && SND_SEQUENCER
+ depends on !SND_SEQ_HRTIMER_DEFAULT
default y
help
Say Y here to use the RTC timer as the default sequencer
@@ -112,8 +151,7 @@ config SND_SEQ_RTCTIMER_DEFAULT
If in doubt, say Y.
config SND_DYNAMIC_MINORS
- bool "Dynamic device file minor numbers (EXPERIMENTAL)"
- depends on SND && EXPERIMENTAL
+ bool "Dynamic device file minor numbers"
help
If you say Y here, the minor numbers of ALSA device files in
/dev/snd/ are allocated dynamically. This allows you to have
@@ -122,17 +160,33 @@ config SND_DYNAMIC_MINORS
If you are unsure about this, say N here.
+config SND_MAX_CARDS
+ int "Max number of sound cards"
+ range 4 256
+ default 32
+ depends on SND_DYNAMIC_MINORS
+ help
+ Specify the max number of sound cards that can be assigned
+ on a single machine.
+
config SND_SUPPORT_OLD_API
bool "Support old ALSA API"
- depends on SND
default y
help
Say Y here to support the obsolete ALSA PCM API (ver.0.9.0 rc3
or older).
+config SND_VERBOSE_PROCFS
+ bool "Verbose procfs contents"
+ depends on PROC_FS
+ default y
+ help
+ Say Y here to include code for verbose procfs contents (provides
+ useful information to developers when a problem occurs). On the
+ other side, it makes the ALSA subsystem larger.
+
config SND_VERBOSE_PRINTK
bool "Verbose printk"
- depends on SND
help
Say Y here to enable verbose log messages. These messages
will help to identify source file and position containing
@@ -142,13 +196,36 @@ config SND_VERBOSE_PRINTK
config SND_DEBUG
bool "Debug"
- depends on SND
help
Say Y here to enable ALSA debug code.
-config SND_DEBUG_DETECT
- bool "Debug detection"
+config SND_DEBUG_VERBOSE
+ bool "More verbose debug"
depends on SND_DEBUG
help
- Say Y here to enable extra-verbose log messages printed when
- detecting devices.
+ Say Y here to enable extra-verbose debugging messages.
+
+ Let me repeat: it enables EXTRA-VERBOSE DEBUGGING messages.
+ So, say Y only if you are ready to be annoyed.
+
+config SND_PCM_XRUN_DEBUG
+ bool "Enable PCM ring buffer overrun/underrun debugging"
+ default n
+ depends on SND_DEBUG && SND_VERBOSE_PROCFS
+ help
+ Say Y to enable the PCM ring buffer overrun/underrun debugging.
+ It is usually not required, but if you have trouble with
+ sound clicking when system is loaded, it may help to determine
+ the process or driver which causes the scheduling gaps.
+
+config SND_VMASTER
+ bool
+
+config SND_KCTL_JACK
+ bool
+
+config SND_DMA_SGBUF
+ def_bool y
+ depends on X86
+
+source "sound/core/seq/Kconfig"
diff --git a/sound/core/Makefile b/sound/core/Makefile
index 5a01c76d02e..394a38909f6 100644
--- a/sound/core/Makefile
+++ b/sound/core/Makefile
@@ -1,32 +1,39 @@
#
# Makefile for ALSA
-# Copyright (c) 1999,2001 by Jaroslav Kysela <perex@suse.cz>
+# Copyright (c) 1999,2001 by Jaroslav Kysela <perex@perex.cz>
#
-snd-objs := sound.o init.o memory.o info.o control.o misc.o device.o
-ifeq ($(CONFIG_ISA_DMA_API),y)
-snd-objs += isadma.o
-endif
-ifeq ($(CONFIG_SND_OSSEMUL),y)
-snd-objs += sound_oss.o info_oss.o
-endif
+snd-y := sound.o init.o memory.o info.o control.o misc.o device.o
+snd-$(CONFIG_ISA_DMA_API) += isadma.o
+snd-$(CONFIG_SND_OSSEMUL) += sound_oss.o info_oss.o
+snd-$(CONFIG_SND_VMASTER) += vmaster.o
+snd-$(CONFIG_SND_KCTL_JACK) += ctljack.o
+snd-$(CONFIG_SND_JACK) += jack.o
-snd-pcm-objs := pcm.o pcm_native.o pcm_lib.o pcm_timer.o pcm_misc.o \
- pcm_memory.o
+snd-pcm-y := pcm.o pcm_native.o pcm_lib.o pcm_timer.o pcm_misc.o \
+ pcm_memory.o memalloc.o
+snd-pcm-$(CONFIG_SND_DMA_SGBUF) += sgbuf.o
-snd-page-alloc-objs := memalloc.o sgbuf.o
+snd-pcm-dmaengine-objs := pcm_dmaengine.o
snd-rawmidi-objs := rawmidi.o
snd-timer-objs := timer.o
+snd-hrtimer-objs := hrtimer.o
snd-rtctimer-objs := rtctimer.o
snd-hwdep-objs := hwdep.o
+snd-compress-objs := compress_offload.o
+
obj-$(CONFIG_SND) += snd.o
obj-$(CONFIG_SND_HWDEP) += snd-hwdep.o
obj-$(CONFIG_SND_TIMER) += snd-timer.o
+obj-$(CONFIG_SND_HRTIMER) += snd-hrtimer.o
obj-$(CONFIG_SND_RTCTIMER) += snd-rtctimer.o
-obj-$(CONFIG_SND_PCM) += snd-pcm.o snd-page-alloc.o
+obj-$(CONFIG_SND_PCM) += snd-pcm.o
+obj-$(CONFIG_SND_DMAENGINE_PCM) += snd-pcm-dmaengine.o
obj-$(CONFIG_SND_RAWMIDI) += snd-rawmidi.o
obj-$(CONFIG_SND_OSSEMUL) += oss/
obj-$(CONFIG_SND_SEQUENCER) += seq/
+
+obj-$(CONFIG_SND_COMPRESS_OFFLOAD) += snd-compress.o
diff --git a/sound/core/compress_offload.c b/sound/core/compress_offload.c
new file mode 100644
index 00000000000..7403f348ed1
--- /dev/null
+++ b/sound/core/compress_offload.c
@@ -0,0 +1,998 @@
+/*
+ * compress_core.c - compress offload core
+ *
+ * Copyright (C) 2011 Intel Corporation
+ * Authors: Vinod Koul <vinod.koul@linux.intel.com>
+ * Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ */
+#define FORMAT(fmt) "%s: %d: " fmt, __func__, __LINE__
+#define pr_fmt(fmt) KBUILD_MODNAME ": " FORMAT(fmt)
+
+#include <linux/file.h>
+#include <linux/fs.h>
+#include <linux/list.h>
+#include <linux/math64.h>
+#include <linux/mm.h>
+#include <linux/mutex.h>
+#include <linux/poll.h>
+#include <linux/slab.h>
+#include <linux/sched.h>
+#include <linux/types.h>
+#include <linux/uio.h>
+#include <linux/uaccess.h>
+#include <linux/module.h>
+#include <sound/core.h>
+#include <sound/initval.h>
+#include <sound/compress_params.h>
+#include <sound/compress_offload.h>
+#include <sound/compress_driver.h>
+
+/* TODO:
+ * - add substream support for multiple devices in case of
+ * SND_DYNAMIC_MINORS is not used
+ * - Multiple node representation
+ * driver should be able to register multiple nodes
+ */
+
+static DEFINE_MUTEX(device_mutex);
+
+struct snd_compr_file {
+ unsigned long caps;
+ struct snd_compr_stream stream;
+};
+
+/*
+ * a note on stream states used:
+ * we use follwing states in the compressed core
+ * SNDRV_PCM_STATE_OPEN: When stream has been opened.
+ * SNDRV_PCM_STATE_SETUP: When stream has been initialized. This is done by
+ * calling SNDRV_COMPRESS_SET_PARAMS. running streams will come to this
+ * state at stop by calling SNDRV_COMPRESS_STOP, or at end of drain.
+ * SNDRV_PCM_STATE_RUNNING: When stream has been started and is
+ * decoding/encoding and rendering/capturing data.
+ * SNDRV_PCM_STATE_DRAINING: When stream is draining current data. This is done
+ * by calling SNDRV_COMPRESS_DRAIN.
+ * SNDRV_PCM_STATE_PAUSED: When stream is paused. This is done by calling
+ * SNDRV_COMPRESS_PAUSE. It can be stopped or resumed by calling
+ * SNDRV_COMPRESS_STOP or SNDRV_COMPRESS_RESUME respectively.
+ */
+static int snd_compr_open(struct inode *inode, struct file *f)
+{
+ struct snd_compr *compr;
+ struct snd_compr_file *data;
+ struct snd_compr_runtime *runtime;
+ enum snd_compr_direction dirn;
+ int maj = imajor(inode);
+ int ret;
+
+ if ((f->f_flags & O_ACCMODE) == O_WRONLY)
+ dirn = SND_COMPRESS_PLAYBACK;
+ else if ((f->f_flags & O_ACCMODE) == O_RDONLY)
+ dirn = SND_COMPRESS_CAPTURE;
+ else
+ return -EINVAL;
+
+ if (maj == snd_major)
+ compr = snd_lookup_minor_data(iminor(inode),
+ SNDRV_DEVICE_TYPE_COMPRESS);
+ else
+ return -EBADFD;
+
+ if (compr == NULL) {
+ pr_err("no device data!!!\n");
+ return -ENODEV;
+ }
+
+ if (dirn != compr->direction) {
+ pr_err("this device doesn't support this direction\n");
+ snd_card_unref(compr->card);
+ return -EINVAL;
+ }
+
+ data = kzalloc(sizeof(*data), GFP_KERNEL);
+ if (!data) {
+ snd_card_unref(compr->card);
+ return -ENOMEM;
+ }
+ data->stream.ops = compr->ops;
+ data->stream.direction = dirn;
+ data->stream.private_data = compr->private_data;
+ data->stream.device = compr;
+ runtime = kzalloc(sizeof(*runtime), GFP_KERNEL);
+ if (!runtime) {
+ kfree(data);
+ snd_card_unref(compr->card);
+ return -ENOMEM;
+ }
+ runtime->state = SNDRV_PCM_STATE_OPEN;
+ init_waitqueue_head(&runtime->sleep);
+ data->stream.runtime = runtime;
+ f->private_data = (void *)data;
+ mutex_lock(&compr->lock);
+ ret = compr->ops->open(&data->stream);
+ mutex_unlock(&compr->lock);
+ if (ret) {
+ kfree(runtime);
+ kfree(data);
+ }
+ snd_card_unref(compr->card);
+ return ret;
+}
+
+static int snd_compr_free(struct inode *inode, struct file *f)
+{
+ struct snd_compr_file *data = f->private_data;
+ struct snd_compr_runtime *runtime = data->stream.runtime;
+
+ switch (runtime->state) {
+ case SNDRV_PCM_STATE_RUNNING:
+ case SNDRV_PCM_STATE_DRAINING:
+ case SNDRV_PCM_STATE_PAUSED:
+ data->stream.ops->trigger(&data->stream, SNDRV_PCM_TRIGGER_STOP);
+ break;
+ default:
+ break;
+ }
+
+ data->stream.ops->free(&data->stream);
+ kfree(data->stream.runtime->buffer);
+ kfree(data->stream.runtime);
+ kfree(data);
+ return 0;
+}
+
+static int snd_compr_update_tstamp(struct snd_compr_stream *stream,
+ struct snd_compr_tstamp *tstamp)
+{
+ if (!stream->ops->pointer)
+ return -ENOTSUPP;
+ stream->ops->pointer(stream, tstamp);
+ pr_debug("dsp consumed till %d total %d bytes\n",
+ tstamp->byte_offset, tstamp->copied_total);
+ if (stream->direction == SND_COMPRESS_PLAYBACK)
+ stream->runtime->total_bytes_transferred = tstamp->copied_total;
+ else
+ stream->runtime->total_bytes_available = tstamp->copied_total;
+ return 0;
+}
+
+static size_t snd_compr_calc_avail(struct snd_compr_stream *stream,
+ struct snd_compr_avail *avail)
+{
+ memset(avail, 0, sizeof(*avail));
+ snd_compr_update_tstamp(stream, &avail->tstamp);
+ /* Still need to return avail even if tstamp can't be filled in */
+
+ if (stream->runtime->total_bytes_available == 0 &&
+ stream->runtime->state == SNDRV_PCM_STATE_SETUP &&
+ stream->direction == SND_COMPRESS_PLAYBACK) {
+ pr_debug("detected init and someone forgot to do a write\n");
+ return stream->runtime->buffer_size;
+ }
+ pr_debug("app wrote %lld, DSP consumed %lld\n",
+ stream->runtime->total_bytes_available,
+ stream->runtime->total_bytes_transferred);
+ if (stream->runtime->total_bytes_available ==
+ stream->runtime->total_bytes_transferred) {
+ if (stream->direction == SND_COMPRESS_PLAYBACK) {
+ pr_debug("both pointers are same, returning full avail\n");
+ return stream->runtime->buffer_size;
+ } else {
+ pr_debug("both pointers are same, returning no avail\n");
+ return 0;
+ }
+ }
+
+ avail->avail = stream->runtime->total_bytes_available -
+ stream->runtime->total_bytes_transferred;
+ if (stream->direction == SND_COMPRESS_PLAYBACK)
+ avail->avail = stream->runtime->buffer_size - avail->avail;
+
+ pr_debug("ret avail as %lld\n", avail->avail);
+ return avail->avail;
+}
+
+static inline size_t snd_compr_get_avail(struct snd_compr_stream *stream)
+{
+ struct snd_compr_avail avail;
+
+ return snd_compr_calc_avail(stream, &avail);
+}
+
+static int
+snd_compr_ioctl_avail(struct snd_compr_stream *stream, unsigned long arg)
+{
+ struct snd_compr_avail ioctl_avail;
+ size_t avail;
+
+ avail = snd_compr_calc_avail(stream, &ioctl_avail);
+ ioctl_avail.avail = avail;
+
+ if (copy_to_user((__u64 __user *)arg,
+ &ioctl_avail, sizeof(ioctl_avail)))
+ return -EFAULT;
+ return 0;
+}
+
+static int snd_compr_write_data(struct snd_compr_stream *stream,
+ const char __user *buf, size_t count)
+{
+ void *dstn;
+ size_t copy;
+ struct snd_compr_runtime *runtime = stream->runtime;
+ /* 64-bit Modulus */
+ u64 app_pointer = div64_u64(runtime->total_bytes_available,
+ runtime->buffer_size);
+ app_pointer = runtime->total_bytes_available -
+ (app_pointer * runtime->buffer_size);
+
+ dstn = runtime->buffer + app_pointer;
+ pr_debug("copying %ld at %lld\n",
+ (unsigned long)count, app_pointer);
+ if (count < runtime->buffer_size - app_pointer) {
+ if (copy_from_user(dstn, buf, count))
+ return -EFAULT;
+ } else {
+ copy = runtime->buffer_size - app_pointer;
+ if (copy_from_user(dstn, buf, copy))
+ return -EFAULT;
+ if (copy_from_user(runtime->buffer, buf + copy, count - copy))
+ return -EFAULT;
+ }
+ /* if DSP cares, let it know data has been written */
+ if (stream->ops->ack)
+ stream->ops->ack(stream, count);
+ return count;
+}
+
+static ssize_t snd_compr_write(struct file *f, const char __user *buf,
+ size_t count, loff_t *offset)
+{
+ struct snd_compr_file *data = f->private_data;
+ struct snd_compr_stream *stream;
+ size_t avail;
+ int retval;
+
+ if (snd_BUG_ON(!data))
+ return -EFAULT;
+
+ stream = &data->stream;
+ mutex_lock(&stream->device->lock);
+ /* write is allowed when stream is running or has been steup */
+ if (stream->runtime->state != SNDRV_PCM_STATE_SETUP &&
+ stream->runtime->state != SNDRV_PCM_STATE_RUNNING) {
+ mutex_unlock(&stream->device->lock);
+ return -EBADFD;
+ }
+
+ avail = snd_compr_get_avail(stream);
+ pr_debug("avail returned %ld\n", (unsigned long)avail);
+ /* calculate how much we can write to buffer */
+ if (avail > count)
+ avail = count;
+
+ if (stream->ops->copy) {
+ char __user* cbuf = (char __user*)buf;
+ retval = stream->ops->copy(stream, cbuf, avail);
+ } else {
+ retval = snd_compr_write_data(stream, buf, avail);
+ }
+ if (retval > 0)
+ stream->runtime->total_bytes_available += retval;
+
+ /* while initiating the stream, write should be called before START
+ * call, so in setup move state */
+ if (stream->runtime->state == SNDRV_PCM_STATE_SETUP) {
+ stream->runtime->state = SNDRV_PCM_STATE_PREPARED;
+ pr_debug("stream prepared, Houston we are good to go\n");
+ }
+
+ mutex_unlock(&stream->device->lock);
+ return retval;
+}
+
+
+static ssize_t snd_compr_read(struct file *f, char __user *buf,
+ size_t count, loff_t *offset)
+{
+ struct snd_compr_file *data = f->private_data;
+ struct snd_compr_stream *stream;
+ size_t avail;
+ int retval;
+
+ if (snd_BUG_ON(!data))
+ return -EFAULT;
+
+ stream = &data->stream;
+ mutex_lock(&stream->device->lock);
+
+ /* read is allowed when stream is running, paused, draining and setup
+ * (yes setup is state which we transition to after stop, so if user
+ * wants to read data after stop we allow that)
+ */
+ switch (stream->runtime->state) {
+ case SNDRV_PCM_STATE_OPEN:
+ case SNDRV_PCM_STATE_PREPARED:
+ case SNDRV_PCM_STATE_XRUN:
+ case SNDRV_PCM_STATE_SUSPENDED:
+ case SNDRV_PCM_STATE_DISCONNECTED:
+ retval = -EBADFD;
+ goto out;
+ }
+
+ avail = snd_compr_get_avail(stream);
+ pr_debug("avail returned %ld\n", (unsigned long)avail);
+ /* calculate how much we can read from buffer */
+ if (avail > count)
+ avail = count;
+
+ if (stream->ops->copy) {
+ retval = stream->ops->copy(stream, buf, avail);
+ } else {
+ retval = -ENXIO;
+ goto out;
+ }
+ if (retval > 0)
+ stream->runtime->total_bytes_transferred += retval;
+
+out:
+ mutex_unlock(&stream->device->lock);
+ return retval;
+}
+
+static int snd_compr_mmap(struct file *f, struct vm_area_struct *vma)
+{
+ return -ENXIO;
+}
+
+static inline int snd_compr_get_poll(struct snd_compr_stream *stream)
+{
+ if (stream->direction == SND_COMPRESS_PLAYBACK)
+ return POLLOUT | POLLWRNORM;
+ else
+ return POLLIN | POLLRDNORM;
+}
+
+static unsigned int snd_compr_poll(struct file *f, poll_table *wait)
+{
+ struct snd_compr_file *data = f->private_data;
+ struct snd_compr_stream *stream;
+ size_t avail;
+ int retval = 0;
+
+ if (snd_BUG_ON(!data))
+ return -EFAULT;
+ stream = &data->stream;
+ if (snd_BUG_ON(!stream))
+ return -EFAULT;
+
+ mutex_lock(&stream->device->lock);
+ if (stream->runtime->state == SNDRV_PCM_STATE_OPEN) {
+ retval = -EBADFD;
+ goto out;
+ }
+ poll_wait(f, &stream->runtime->sleep, wait);
+
+ avail = snd_compr_get_avail(stream);
+ pr_debug("avail is %ld\n", (unsigned long)avail);
+ /* check if we have at least one fragment to fill */
+ switch (stream->runtime->state) {
+ case SNDRV_PCM_STATE_DRAINING:
+ /* stream has been woken up after drain is complete
+ * draining done so set stream state to stopped
+ */
+ retval = snd_compr_get_poll(stream);
+ stream->runtime->state = SNDRV_PCM_STATE_SETUP;
+ break;
+ case SNDRV_PCM_STATE_RUNNING:
+ case SNDRV_PCM_STATE_PREPARED:
+ case SNDRV_PCM_STATE_PAUSED:
+ if (avail >= stream->runtime->fragment_size)
+ retval = snd_compr_get_poll(stream);
+ break;
+ default:
+ if (stream->direction == SND_COMPRESS_PLAYBACK)
+ retval = POLLOUT | POLLWRNORM | POLLERR;
+ else
+ retval = POLLIN | POLLRDNORM | POLLERR;
+ break;
+ }
+out:
+ mutex_unlock(&stream->device->lock);
+ return retval;
+}
+
+static int
+snd_compr_get_caps(struct snd_compr_stream *stream, unsigned long arg)
+{
+ int retval;
+ struct snd_compr_caps caps;
+
+ if (!stream->ops->get_caps)
+ return -ENXIO;
+
+ memset(&caps, 0, sizeof(caps));
+ retval = stream->ops->get_caps(stream, &caps);
+ if (retval)
+ goto out;
+ if (copy_to_user((void __user *)arg, &caps, sizeof(caps)))
+ retval = -EFAULT;
+out:
+ return retval;
+}
+
+static int
+snd_compr_get_codec_caps(struct snd_compr_stream *stream, unsigned long arg)
+{
+ int retval;
+ struct snd_compr_codec_caps *caps;
+
+ if (!stream->ops->get_codec_caps)
+ return -ENXIO;
+
+ caps = kzalloc(sizeof(*caps), GFP_KERNEL);
+ if (!caps)
+ return -ENOMEM;
+
+ retval = stream->ops->get_codec_caps(stream, caps);
+ if (retval)
+ goto out;
+ if (copy_to_user((void __user *)arg, caps, sizeof(*caps)))
+ retval = -EFAULT;
+
+out:
+ kfree(caps);
+ return retval;
+}
+
+/* revisit this with snd_pcm_preallocate_xxx */
+static int snd_compr_allocate_buffer(struct snd_compr_stream *stream,
+ struct snd_compr_params *params)
+{
+ unsigned int buffer_size;
+ void *buffer;
+
+ buffer_size = params->buffer.fragment_size * params->buffer.fragments;
+ if (stream->ops->copy) {
+ buffer = NULL;
+ /* if copy is defined the driver will be required to copy
+ * the data from core
+ */
+ } else {
+ buffer = kmalloc(buffer_size, GFP_KERNEL);
+ if (!buffer)
+ return -ENOMEM;
+ }
+ stream->runtime->fragment_size = params->buffer.fragment_size;
+ stream->runtime->fragments = params->buffer.fragments;
+ stream->runtime->buffer = buffer;
+ stream->runtime->buffer_size = buffer_size;
+ return 0;
+}
+
+static int snd_compress_check_input(struct snd_compr_params *params)
+{
+ /* first let's check the buffer parameter's */
+ if (params->buffer.fragment_size == 0 ||
+ params->buffer.fragments > SIZE_MAX / params->buffer.fragment_size)
+ return -EINVAL;
+
+ /* now codec parameters */
+ if (params->codec.id == 0 || params->codec.id > SND_AUDIOCODEC_MAX)
+ return -EINVAL;
+
+ if (params->codec.ch_in == 0 || params->codec.ch_out == 0)
+ return -EINVAL;
+
+ return 0;
+}
+
+static int
+snd_compr_set_params(struct snd_compr_stream *stream, unsigned long arg)
+{
+ struct snd_compr_params *params;
+ int retval;
+
+ if (stream->runtime->state == SNDRV_PCM_STATE_OPEN) {
+ /*
+ * we should allow parameter change only when stream has been
+ * opened not in other cases
+ */
+ params = kmalloc(sizeof(*params), GFP_KERNEL);
+ if (!params)
+ return -ENOMEM;
+ if (copy_from_user(params, (void __user *)arg, sizeof(*params))) {
+ retval = -EFAULT;
+ goto out;
+ }
+
+ retval = snd_compress_check_input(params);
+ if (retval)
+ goto out;
+
+ retval = snd_compr_allocate_buffer(stream, params);
+ if (retval) {
+ retval = -ENOMEM;
+ goto out;
+ }
+
+ retval = stream->ops->set_params(stream, params);
+ if (retval)
+ goto out;
+
+ stream->metadata_set = false;
+ stream->next_track = false;
+
+ if (stream->direction == SND_COMPRESS_PLAYBACK)
+ stream->runtime->state = SNDRV_PCM_STATE_SETUP;
+ else
+ stream->runtime->state = SNDRV_PCM_STATE_PREPARED;
+ } else {
+ return -EPERM;
+ }
+out:
+ kfree(params);
+ return retval;
+}
+
+static int
+snd_compr_get_params(struct snd_compr_stream *stream, unsigned long arg)
+{
+ struct snd_codec *params;
+ int retval;
+
+ if (!stream->ops->get_params)
+ return -EBADFD;
+
+ params = kzalloc(sizeof(*params), GFP_KERNEL);
+ if (!params)
+ return -ENOMEM;
+ retval = stream->ops->get_params(stream, params);
+ if (retval)
+ goto out;
+ if (copy_to_user((char __user *)arg, params, sizeof(*params)))
+ retval = -EFAULT;
+
+out:
+ kfree(params);
+ return retval;
+}
+
+static int
+snd_compr_get_metadata(struct snd_compr_stream *stream, unsigned long arg)
+{
+ struct snd_compr_metadata metadata;
+ int retval;
+
+ if (!stream->ops->get_metadata)
+ return -ENXIO;
+
+ if (copy_from_user(&metadata, (void __user *)arg, sizeof(metadata)))
+ return -EFAULT;
+
+ retval = stream->ops->get_metadata(stream, &metadata);
+ if (retval != 0)
+ return retval;
+
+ if (copy_to_user((void __user *)arg, &metadata, sizeof(metadata)))
+ return -EFAULT;
+
+ return 0;
+}
+
+static int
+snd_compr_set_metadata(struct snd_compr_stream *stream, unsigned long arg)
+{
+ struct snd_compr_metadata metadata;
+ int retval;
+
+ if (!stream->ops->set_metadata)
+ return -ENXIO;
+ /*
+ * we should allow parameter change only when stream has been
+ * opened not in other cases
+ */
+ if (copy_from_user(&metadata, (void __user *)arg, sizeof(metadata)))
+ return -EFAULT;
+
+ retval = stream->ops->set_metadata(stream, &metadata);
+ stream->metadata_set = true;
+
+ return retval;
+}
+
+static inline int
+snd_compr_tstamp(struct snd_compr_stream *stream, unsigned long arg)
+{
+ struct snd_compr_tstamp tstamp = {0};
+ int ret;
+
+ ret = snd_compr_update_tstamp(stream, &tstamp);
+ if (ret == 0)
+ ret = copy_to_user((struct snd_compr_tstamp __user *)arg,
+ &tstamp, sizeof(tstamp)) ? -EFAULT : 0;
+ return ret;
+}
+
+static int snd_compr_pause(struct snd_compr_stream *stream)
+{
+ int retval;
+
+ if (stream->runtime->state != SNDRV_PCM_STATE_RUNNING)
+ return -EPERM;
+ retval = stream->ops->trigger(stream, SNDRV_PCM_TRIGGER_PAUSE_PUSH);
+ if (!retval)
+ stream->runtime->state = SNDRV_PCM_STATE_PAUSED;
+ return retval;
+}
+
+static int snd_compr_resume(struct snd_compr_stream *stream)
+{
+ int retval;
+
+ if (stream->runtime->state != SNDRV_PCM_STATE_PAUSED)
+ return -EPERM;
+ retval = stream->ops->trigger(stream, SNDRV_PCM_TRIGGER_PAUSE_RELEASE);
+ if (!retval)
+ stream->runtime->state = SNDRV_PCM_STATE_RUNNING;
+ return retval;
+}
+
+static int snd_compr_start(struct snd_compr_stream *stream)
+{
+ int retval;
+
+ if (stream->runtime->state != SNDRV_PCM_STATE_PREPARED)
+ return -EPERM;
+ retval = stream->ops->trigger(stream, SNDRV_PCM_TRIGGER_START);
+ if (!retval)
+ stream->runtime->state = SNDRV_PCM_STATE_RUNNING;
+ return retval;
+}
+
+static int snd_compr_stop(struct snd_compr_stream *stream)
+{
+ int retval;
+
+ if (stream->runtime->state == SNDRV_PCM_STATE_PREPARED ||
+ stream->runtime->state == SNDRV_PCM_STATE_SETUP)
+ return -EPERM;
+ retval = stream->ops->trigger(stream, SNDRV_PCM_TRIGGER_STOP);
+ if (!retval) {
+ snd_compr_drain_notify(stream);
+ stream->runtime->total_bytes_available = 0;
+ stream->runtime->total_bytes_transferred = 0;
+ }
+ return retval;
+}
+
+static int snd_compress_wait_for_drain(struct snd_compr_stream *stream)
+{
+ int ret;
+
+ /*
+ * We are called with lock held. So drop the lock while we wait for
+ * drain complete notfication from the driver
+ *
+ * It is expected that driver will notify the drain completion and then
+ * stream will be moved to SETUP state, even if draining resulted in an
+ * error. We can trigger next track after this.
+ */
+ stream->runtime->state = SNDRV_PCM_STATE_DRAINING;
+ mutex_unlock(&stream->device->lock);
+
+ /* we wait for drain to complete here, drain can return when
+ * interruption occurred, wait returned error or success.
+ * For the first two cases we don't do anything different here and
+ * return after waking up
+ */
+
+ ret = wait_event_interruptible(stream->runtime->sleep,
+ (stream->runtime->state != SNDRV_PCM_STATE_DRAINING));
+ if (ret == -ERESTARTSYS)
+ pr_debug("wait aborted by a signal");
+ else if (ret)
+ pr_debug("wait for drain failed with %d\n", ret);
+
+
+ wake_up(&stream->runtime->sleep);
+ mutex_lock(&stream->device->lock);
+
+ return ret;
+}
+
+static int snd_compr_drain(struct snd_compr_stream *stream)
+{
+ int retval;
+
+ if (stream->runtime->state == SNDRV_PCM_STATE_PREPARED ||
+ stream->runtime->state == SNDRV_PCM_STATE_SETUP)
+ return -EPERM;
+
+ retval = stream->ops->trigger(stream, SND_COMPR_TRIGGER_DRAIN);
+ if (retval) {
+ pr_debug("SND_COMPR_TRIGGER_DRAIN failed %d\n", retval);
+ wake_up(&stream->runtime->sleep);
+ return retval;
+ }
+
+ return snd_compress_wait_for_drain(stream);
+}
+
+static int snd_compr_next_track(struct snd_compr_stream *stream)
+{
+ int retval;
+
+ /* only a running stream can transition to next track */
+ if (stream->runtime->state != SNDRV_PCM_STATE_RUNNING)
+ return -EPERM;
+
+ /* you can signal next track isf this is intended to be a gapless stream
+ * and current track metadata is set
+ */
+ if (stream->metadata_set == false)
+ return -EPERM;
+
+ retval = stream->ops->trigger(stream, SND_COMPR_TRIGGER_NEXT_TRACK);
+ if (retval != 0)
+ return retval;
+ stream->metadata_set = false;
+ stream->next_track = true;
+ return 0;
+}
+
+static int snd_compr_partial_drain(struct snd_compr_stream *stream)
+{
+ int retval;
+ if (stream->runtime->state == SNDRV_PCM_STATE_PREPARED ||
+ stream->runtime->state == SNDRV_PCM_STATE_SETUP)
+ return -EPERM;
+ /* stream can be drained only when next track has been signalled */
+ if (stream->next_track == false)
+ return -EPERM;
+
+ retval = stream->ops->trigger(stream, SND_COMPR_TRIGGER_PARTIAL_DRAIN);
+ if (retval) {
+ pr_debug("Partial drain returned failure\n");
+ wake_up(&stream->runtime->sleep);
+ return retval;
+ }
+
+ stream->next_track = false;
+ return snd_compress_wait_for_drain(stream);
+}
+
+static long snd_compr_ioctl(struct file *f, unsigned int cmd, unsigned long arg)
+{
+ struct snd_compr_file *data = f->private_data;
+ struct snd_compr_stream *stream;
+ int retval = -ENOTTY;
+
+ if (snd_BUG_ON(!data))
+ return -EFAULT;
+ stream = &data->stream;
+ if (snd_BUG_ON(!stream))
+ return -EFAULT;
+ mutex_lock(&stream->device->lock);
+ switch (_IOC_NR(cmd)) {
+ case _IOC_NR(SNDRV_COMPRESS_IOCTL_VERSION):
+ retval = put_user(SNDRV_COMPRESS_VERSION,
+ (int __user *)arg) ? -EFAULT : 0;
+ break;
+ case _IOC_NR(SNDRV_COMPRESS_GET_CAPS):
+ retval = snd_compr_get_caps(stream, arg);
+ break;
+ case _IOC_NR(SNDRV_COMPRESS_GET_CODEC_CAPS):
+ retval = snd_compr_get_codec_caps(stream, arg);
+ break;
+ case _IOC_NR(SNDRV_COMPRESS_SET_PARAMS):
+ retval = snd_compr_set_params(stream, arg);
+ break;
+ case _IOC_NR(SNDRV_COMPRESS_GET_PARAMS):
+ retval = snd_compr_get_params(stream, arg);
+ break;
+ case _IOC_NR(SNDRV_COMPRESS_SET_METADATA):
+ retval = snd_compr_set_metadata(stream, arg);
+ break;
+ case _IOC_NR(SNDRV_COMPRESS_GET_METADATA):
+ retval = snd_compr_get_metadata(stream, arg);
+ break;
+ case _IOC_NR(SNDRV_COMPRESS_TSTAMP):
+ retval = snd_compr_tstamp(stream, arg);
+ break;
+ case _IOC_NR(SNDRV_COMPRESS_AVAIL):
+ retval = snd_compr_ioctl_avail(stream, arg);
+ break;
+ case _IOC_NR(SNDRV_COMPRESS_PAUSE):
+ retval = snd_compr_pause(stream);
+ break;
+ case _IOC_NR(SNDRV_COMPRESS_RESUME):
+ retval = snd_compr_resume(stream);
+ break;
+ case _IOC_NR(SNDRV_COMPRESS_START):
+ retval = snd_compr_start(stream);
+ break;
+ case _IOC_NR(SNDRV_COMPRESS_STOP):
+ retval = snd_compr_stop(stream);
+ break;
+ case _IOC_NR(SNDRV_COMPRESS_DRAIN):
+ retval = snd_compr_drain(stream);
+ break;
+ case _IOC_NR(SNDRV_COMPRESS_PARTIAL_DRAIN):
+ retval = snd_compr_partial_drain(stream);
+ break;
+ case _IOC_NR(SNDRV_COMPRESS_NEXT_TRACK):
+ retval = snd_compr_next_track(stream);
+ break;
+
+ }
+ mutex_unlock(&stream->device->lock);
+ return retval;
+}
+
+static const struct file_operations snd_compr_file_ops = {
+ .owner = THIS_MODULE,
+ .open = snd_compr_open,
+ .release = snd_compr_free,
+ .write = snd_compr_write,
+ .read = snd_compr_read,
+ .unlocked_ioctl = snd_compr_ioctl,
+ .mmap = snd_compr_mmap,
+ .poll = snd_compr_poll,
+};
+
+static int snd_compress_dev_register(struct snd_device *device)
+{
+ int ret = -EINVAL;
+ char str[16];
+ struct snd_compr *compr;
+
+ if (snd_BUG_ON(!device || !device->device_data))
+ return -EBADFD;
+ compr = device->device_data;
+
+ sprintf(str, "comprC%iD%i", compr->card->number, compr->device);
+ pr_debug("reg %s for device %s, direction %d\n", str, compr->name,
+ compr->direction);
+ /* register compressed device */
+ ret = snd_register_device(SNDRV_DEVICE_TYPE_COMPRESS, compr->card,
+ compr->device, &snd_compr_file_ops, compr, str);
+ if (ret < 0) {
+ pr_err("snd_register_device failed\n %d", ret);
+ return ret;
+ }
+ return ret;
+
+}
+
+static int snd_compress_dev_disconnect(struct snd_device *device)
+{
+ struct snd_compr *compr;
+
+ compr = device->device_data;
+ snd_unregister_device(SNDRV_DEVICE_TYPE_COMPRESS, compr->card,
+ compr->device);
+ return 0;
+}
+
+/*
+ * snd_compress_new: create new compress device
+ * @card: sound card pointer
+ * @device: device number
+ * @dirn: device direction, should be of type enum snd_compr_direction
+ * @compr: compress device pointer
+ */
+int snd_compress_new(struct snd_card *card, int device,
+ int dirn, struct snd_compr *compr)
+{
+ static struct snd_device_ops ops = {
+ .dev_free = NULL,
+ .dev_register = snd_compress_dev_register,
+ .dev_disconnect = snd_compress_dev_disconnect,
+ };
+
+ compr->card = card;
+ compr->device = device;
+ compr->direction = dirn;
+ return snd_device_new(card, SNDRV_DEV_COMPRESS, compr, &ops);
+}
+EXPORT_SYMBOL_GPL(snd_compress_new);
+
+static int snd_compress_add_device(struct snd_compr *device)
+{
+ int ret;
+
+ if (!device->card)
+ return -EINVAL;
+
+ /* register the card */
+ ret = snd_card_register(device->card);
+ if (ret)
+ goto out;
+ return 0;
+
+out:
+ pr_err("failed with %d\n", ret);
+ return ret;
+
+}
+
+static int snd_compress_remove_device(struct snd_compr *device)
+{
+ return snd_card_free(device->card);
+}
+
+/**
+ * snd_compress_register - register compressed device
+ *
+ * @device: compressed device to register
+ */
+int snd_compress_register(struct snd_compr *device)
+{
+ int retval;
+
+ if (device->name == NULL || device->dev == NULL || device->ops == NULL)
+ return -EINVAL;
+
+ pr_debug("Registering compressed device %s\n", device->name);
+ if (snd_BUG_ON(!device->ops->open))
+ return -EINVAL;
+ if (snd_BUG_ON(!device->ops->free))
+ return -EINVAL;
+ if (snd_BUG_ON(!device->ops->set_params))
+ return -EINVAL;
+ if (snd_BUG_ON(!device->ops->trigger))
+ return -EINVAL;
+
+ mutex_init(&device->lock);
+
+ /* register a compressed card */
+ mutex_lock(&device_mutex);
+ retval = snd_compress_add_device(device);
+ mutex_unlock(&device_mutex);
+ return retval;
+}
+EXPORT_SYMBOL_GPL(snd_compress_register);
+
+int snd_compress_deregister(struct snd_compr *device)
+{
+ pr_debug("Removing compressed device %s\n", device->name);
+ mutex_lock(&device_mutex);
+ snd_compress_remove_device(device);
+ mutex_unlock(&device_mutex);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(snd_compress_deregister);
+
+static int __init snd_compress_init(void)
+{
+ return 0;
+}
+
+static void __exit snd_compress_exit(void)
+{
+}
+
+module_init(snd_compress_init);
+module_exit(snd_compress_exit);
+
+MODULE_DESCRIPTION("ALSA Compressed offload framework");
+MODULE_AUTHOR("Vinod Koul <vinod.koul@linux.intel.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/sound/core/control.c b/sound/core/control.c
index abd62f94372..f0b0e14497a 100644
--- a/sound/core/control.c
+++ b/sound/core/control.c
@@ -1,6 +1,6 @@
/*
* Routines for driver control interface
- * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
*
*
* This program is free software; you can redistribute it and/or modify
@@ -19,10 +19,9 @@
*
*/
-#include <sound/driver.h>
#include <linux/threads.h>
#include <linux/interrupt.h>
-#include <linux/smp_lock.h>
+#include <linux/module.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/time.h>
@@ -33,6 +32,7 @@
/* max number of user-defined controls */
#define MAX_USER_CONTROLS 32
+#define MAX_CONTROL_COUNT 1028
struct snd_kctl_ioctl {
struct list_head list; /* list of all ioctls */
@@ -52,6 +52,10 @@ static int snd_ctl_open(struct inode *inode, struct file *file)
struct snd_ctl_file *ctl;
int err;
+ err = nonseekable_open(inode, file);
+ if (err < 0)
+ return err;
+
card = snd_lookup_minor_data(iminor(inode), SNDRV_DEVICE_TYPE_CONTROL);
if (!card) {
err = -ENODEV;
@@ -75,11 +79,14 @@ static int snd_ctl_open(struct inode *inode, struct file *file)
init_waitqueue_head(&ctl->change_sleep);
spin_lock_init(&ctl->read_lock);
ctl->card = card;
- ctl->pid = current->pid;
+ ctl->prefer_pcm_subdevice = -1;
+ ctl->prefer_rawmidi_subdevice = -1;
+ ctl->pid = get_pid(task_pid(current));
file->private_data = ctl;
write_lock_irqsave(&card->ctl_files_rwlock, flags);
list_add_tail(&ctl->list, &card->ctl_files);
write_unlock_irqrestore(&card->ctl_files_rwlock, flags);
+ snd_card_unref(card);
return 0;
__error:
@@ -87,47 +94,47 @@ static int snd_ctl_open(struct inode *inode, struct file *file)
__error2:
snd_card_file_remove(card, file);
__error1:
+ if (card)
+ snd_card_unref(card);
return err;
}
static void snd_ctl_empty_read_queue(struct snd_ctl_file * ctl)
{
+ unsigned long flags;
struct snd_kctl_event *cread;
- spin_lock(&ctl->read_lock);
+ spin_lock_irqsave(&ctl->read_lock, flags);
while (!list_empty(&ctl->events)) {
cread = snd_kctl_event(ctl->events.next);
list_del(&cread->list);
kfree(cread);
}
- spin_unlock(&ctl->read_lock);
+ spin_unlock_irqrestore(&ctl->read_lock, flags);
}
static int snd_ctl_release(struct inode *inode, struct file *file)
{
unsigned long flags;
- struct list_head *list;
struct snd_card *card;
struct snd_ctl_file *ctl;
struct snd_kcontrol *control;
unsigned int idx;
ctl = file->private_data;
- fasync_helper(-1, file, 0, &ctl->fasync);
file->private_data = NULL;
card = ctl->card;
write_lock_irqsave(&card->ctl_files_rwlock, flags);
list_del(&ctl->list);
write_unlock_irqrestore(&card->ctl_files_rwlock, flags);
down_write(&card->controls_rwsem);
- list_for_each(list, &card->controls) {
- control = snd_kcontrol(list);
+ list_for_each_entry(control, &card->controls, list)
for (idx = 0; idx < control->count; idx++)
if (control->vd[idx].owner == ctl)
control->vd[idx].owner = NULL;
- }
up_write(&card->controls_rwsem);
snd_ctl_empty_read_queue(ctl);
+ put_pid(ctl->pid);
kfree(ctl);
module_put(card->module);
snd_card_file_remove(card, file);
@@ -138,23 +145,20 @@ void snd_ctl_notify(struct snd_card *card, unsigned int mask,
struct snd_ctl_elem_id *id)
{
unsigned long flags;
- struct list_head *flist;
struct snd_ctl_file *ctl;
struct snd_kctl_event *ev;
- snd_assert(card != NULL && id != NULL, return);
+ if (snd_BUG_ON(!card || !id))
+ return;
read_lock(&card->ctl_files_rwlock);
-#if defined(CONFIG_SND_MIXER_OSS) || defined(CONFIG_SND_MIXER_OSS_MODULE)
+#if IS_ENABLED(CONFIG_SND_MIXER_OSS)
card->mixer_oss_change_count++;
#endif
- list_for_each(flist, &card->ctl_files) {
- struct list_head *elist;
- ctl = snd_ctl_file(flist);
+ list_for_each_entry(ctl, &card->ctl_files, list) {
if (!ctl->subscribed)
continue;
spin_lock_irqsave(&ctl->read_lock, flags);
- list_for_each(elist, &ctl->events) {
- ev = snd_kctl_event(elist);
+ list_for_each_entry(ev, &ctl->events, list) {
if (ev->id.numid == id->numid) {
ev->mask |= mask;
goto _found;
@@ -166,7 +170,7 @@ void snd_ctl_notify(struct snd_card *card, unsigned int mask,
ev->mask = mask;
list_add_tail(&ev->list, &ctl->events);
} else {
- snd_printk(KERN_ERR "No memory available to allocate event\n");
+ dev_err(card->dev, "No memory available to allocate event\n");
}
_found:
wake_up(&ctl->change_sleep);
@@ -176,6 +180,8 @@ void snd_ctl_notify(struct snd_card *card, unsigned int mask,
read_unlock(&card->ctl_files_rwlock);
}
+EXPORT_SYMBOL(snd_ctl_notify);
+
/**
* snd_ctl_new - create a control instance from the template
* @control: the control template
@@ -184,18 +190,23 @@ void snd_ctl_notify(struct snd_card *card, unsigned int mask,
* Allocates a new struct snd_kcontrol instance and copies the given template
* to the new instance. It does not copy volatile data (access).
*
- * Returns the pointer of the new instance, or NULL on failure.
+ * Return: The pointer of the new instance, or %NULL on failure.
*/
-struct snd_kcontrol *snd_ctl_new(struct snd_kcontrol *control, unsigned int access)
+static struct snd_kcontrol *snd_ctl_new(struct snd_kcontrol *control,
+ unsigned int access)
{
struct snd_kcontrol *kctl;
unsigned int idx;
- snd_assert(control != NULL, return NULL);
- snd_assert(control->count > 0, return NULL);
+ if (snd_BUG_ON(!control || !control->count))
+ return NULL;
+
+ if (control->count > MAX_CONTROL_COUNT)
+ return NULL;
+
kctl = kzalloc(sizeof(*kctl) + sizeof(struct snd_kcontrol_volatile) * control->count, GFP_KERNEL);
if (kctl == NULL) {
- snd_printk(KERN_ERR "Cannot allocate control instance\n");
+ pr_err("ALSA: Cannot allocate control instance\n");
return NULL;
}
*kctl = *control;
@@ -213,7 +224,7 @@ struct snd_kcontrol *snd_ctl_new(struct snd_kcontrol *control, unsigned int acce
* template. When the access field of ncontrol is 0, it's assumed as
* READWRITE access. When the count field is 0, it's assumes as one.
*
- * Returns the pointer of the newly generated instance, or NULL on failure.
+ * Return: The pointer of the newly generated instance, or %NULL on failure.
*/
struct snd_kcontrol *snd_ctl_new1(const struct snd_kcontrol_new *ncontrol,
void *private_data)
@@ -221,27 +232,38 @@ struct snd_kcontrol *snd_ctl_new1(const struct snd_kcontrol_new *ncontrol,
struct snd_kcontrol kctl;
unsigned int access;
- snd_assert(ncontrol != NULL, return NULL);
- snd_assert(ncontrol->info != NULL, return NULL);
+ if (snd_BUG_ON(!ncontrol || !ncontrol->info))
+ return NULL;
memset(&kctl, 0, sizeof(kctl));
kctl.id.iface = ncontrol->iface;
kctl.id.device = ncontrol->device;
kctl.id.subdevice = ncontrol->subdevice;
- if (ncontrol->name)
+ if (ncontrol->name) {
strlcpy(kctl.id.name, ncontrol->name, sizeof(kctl.id.name));
+ if (strcmp(ncontrol->name, kctl.id.name) != 0)
+ pr_warn("ALSA: Control name '%s' truncated to '%s'\n",
+ ncontrol->name, kctl.id.name);
+ }
kctl.id.index = ncontrol->index;
kctl.count = ncontrol->count ? ncontrol->count : 1;
access = ncontrol->access == 0 ? SNDRV_CTL_ELEM_ACCESS_READWRITE :
- (ncontrol->access & (SNDRV_CTL_ELEM_ACCESS_READWRITE|SNDRV_CTL_ELEM_ACCESS_INACTIVE|
- SNDRV_CTL_ELEM_ACCESS_DINDIRECT|SNDRV_CTL_ELEM_ACCESS_INDIRECT));
+ (ncontrol->access & (SNDRV_CTL_ELEM_ACCESS_READWRITE|
+ SNDRV_CTL_ELEM_ACCESS_VOLATILE|
+ SNDRV_CTL_ELEM_ACCESS_INACTIVE|
+ SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE|
+ SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND|
+ SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK));
kctl.info = ncontrol->info;
kctl.get = ncontrol->get;
kctl.put = ncontrol->put;
+ kctl.tlv.p = ncontrol->tlv.p;
kctl.private_value = ncontrol->private_value;
kctl.private_data = private_data;
return snd_ctl_new(&kctl, access);
}
+EXPORT_SYMBOL(snd_ctl_new1);
+
/**
* snd_ctl_free_one - release the control instance
* @kcontrol: the control instance
@@ -259,35 +281,37 @@ void snd_ctl_free_one(struct snd_kcontrol *kcontrol)
}
}
-static unsigned int snd_ctl_hole_check(struct snd_card *card,
- unsigned int count)
+EXPORT_SYMBOL(snd_ctl_free_one);
+
+static bool snd_ctl_remove_numid_conflict(struct snd_card *card,
+ unsigned int count)
{
- struct list_head *list;
struct snd_kcontrol *kctl;
- list_for_each(list, &card->controls) {
- kctl = snd_kcontrol(list);
- if ((kctl->id.numid <= card->last_numid &&
- kctl->id.numid + kctl->count > card->last_numid) ||
- (kctl->id.numid <= card->last_numid + count - 1 &&
- kctl->id.numid + kctl->count > card->last_numid + count - 1))
- return card->last_numid = kctl->id.numid + kctl->count - 1;
+ /* Make sure that the ids assigned to the control do not wrap around */
+ if (card->last_numid >= UINT_MAX - count)
+ card->last_numid = 0;
+
+ list_for_each_entry(kctl, &card->controls, list) {
+ if (kctl->id.numid < card->last_numid + 1 + count &&
+ kctl->id.numid + kctl->count > card->last_numid + 1) {
+ card->last_numid = kctl->id.numid + kctl->count - 1;
+ return true;
+ }
}
- return card->last_numid;
+ return false;
}
static int snd_ctl_find_hole(struct snd_card *card, unsigned int count)
{
- unsigned int last_numid, iter = 100000;
+ unsigned int iter = 100000;
- last_numid = card->last_numid;
- while (last_numid != snd_ctl_hole_check(card, count)) {
+ while (snd_ctl_remove_numid_conflict(card, count)) {
if (--iter == 0) {
/* this situation is very unlikely */
- snd_printk(KERN_ERR "unable to allocate new control numid\n");
+ dev_err(card->dev, "unable to allocate new control numid\n");
return -ENOMEM;
}
- last_numid = card->last_numid;
}
return 0;
}
@@ -301,47 +325,126 @@ static int snd_ctl_find_hole(struct snd_card *card, unsigned int count)
* snd_ctl_new1() to the given card. Assigns also an unique
* numid used for fast search.
*
- * Returns zero if successful, or a negative error code on failure.
- *
* It frees automatically the control which cannot be added.
+ *
+ * Return: Zero if successful, or a negative error code on failure.
+ *
*/
int snd_ctl_add(struct snd_card *card, struct snd_kcontrol *kcontrol)
{
struct snd_ctl_elem_id id;
unsigned int idx;
+ unsigned int count;
+ int err = -EINVAL;
- snd_assert(card != NULL, return -EINVAL);
if (! kcontrol)
- return -EINVAL;
- snd_assert(kcontrol->info != NULL, return -EINVAL);
+ return err;
+ if (snd_BUG_ON(!card || !kcontrol->info))
+ goto error;
id = kcontrol->id;
+ if (id.index > UINT_MAX - kcontrol->count)
+ goto error;
+
down_write(&card->controls_rwsem);
if (snd_ctl_find_id(card, &id)) {
up_write(&card->controls_rwsem);
- snd_ctl_free_one(kcontrol);
- snd_printd(KERN_ERR "control %i:%i:%i:%s:%i is already present\n",
+ dev_err(card->dev, "control %i:%i:%i:%s:%i is already present\n",
id.iface,
id.device,
id.subdevice,
id.name,
id.index);
- return -EBUSY;
+ err = -EBUSY;
+ goto error;
}
if (snd_ctl_find_hole(card, kcontrol->count) < 0) {
up_write(&card->controls_rwsem);
- snd_ctl_free_one(kcontrol);
- return -ENOMEM;
+ err = -ENOMEM;
+ goto error;
}
list_add_tail(&kcontrol->list, &card->controls);
card->controls_count += kcontrol->count;
kcontrol->id.numid = card->last_numid + 1;
card->last_numid += kcontrol->count;
+ count = kcontrol->count;
up_write(&card->controls_rwsem);
- for (idx = 0; idx < kcontrol->count; idx++, id.index++, id.numid++)
+ for (idx = 0; idx < count; idx++, id.index++, id.numid++)
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_ADD, &id);
return 0;
+
+ error:
+ snd_ctl_free_one(kcontrol);
+ return err;
}
+EXPORT_SYMBOL(snd_ctl_add);
+
+/**
+ * snd_ctl_replace - replace the control instance of the card
+ * @card: the card instance
+ * @kcontrol: the control instance to replace
+ * @add_on_replace: add the control if not already added
+ *
+ * Replaces the given control. If the given control does not exist
+ * and the add_on_replace flag is set, the control is added. If the
+ * control exists, it is destroyed first.
+ *
+ * It frees automatically the control which cannot be added or replaced.
+ *
+ * Return: Zero if successful, or a negative error code on failure.
+ */
+int snd_ctl_replace(struct snd_card *card, struct snd_kcontrol *kcontrol,
+ bool add_on_replace)
+{
+ struct snd_ctl_elem_id id;
+ unsigned int count;
+ unsigned int idx;
+ struct snd_kcontrol *old;
+ int ret;
+
+ if (!kcontrol)
+ return -EINVAL;
+ if (snd_BUG_ON(!card || !kcontrol->info)) {
+ ret = -EINVAL;
+ goto error;
+ }
+ id = kcontrol->id;
+ down_write(&card->controls_rwsem);
+ old = snd_ctl_find_id(card, &id);
+ if (!old) {
+ if (add_on_replace)
+ goto add;
+ up_write(&card->controls_rwsem);
+ ret = -EINVAL;
+ goto error;
+ }
+ ret = snd_ctl_remove(card, old);
+ if (ret < 0) {
+ up_write(&card->controls_rwsem);
+ goto error;
+ }
+add:
+ if (snd_ctl_find_hole(card, kcontrol->count) < 0) {
+ up_write(&card->controls_rwsem);
+ ret = -ENOMEM;
+ goto error;
+ }
+ list_add_tail(&kcontrol->list, &card->controls);
+ card->controls_count += kcontrol->count;
+ kcontrol->id.numid = card->last_numid + 1;
+ card->last_numid += kcontrol->count;
+ count = kcontrol->count;
+ up_write(&card->controls_rwsem);
+ for (idx = 0; idx < count; idx++, id.index++, id.numid++)
+ snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_ADD, &id);
+ return 0;
+
+error:
+ snd_ctl_free_one(kcontrol);
+ return ret;
+}
+EXPORT_SYMBOL(snd_ctl_replace);
+
/**
* snd_ctl_remove - remove the control from the card and release it
* @card: the card instance
@@ -350,15 +453,16 @@ int snd_ctl_add(struct snd_card *card, struct snd_kcontrol *kcontrol)
* Removes the control from the card and then releases the instance.
* You don't need to call snd_ctl_free_one(). You must be in
* the write lock - down_write(&card->controls_rwsem).
- *
- * Returns 0 if successful, or a negative error code on failure.
+ *
+ * Return: 0 if successful, or a negative error code on failure.
*/
int snd_ctl_remove(struct snd_card *card, struct snd_kcontrol *kcontrol)
{
struct snd_ctl_elem_id id;
unsigned int idx;
- snd_assert(card != NULL && kcontrol != NULL, return -EINVAL);
+ if (snd_BUG_ON(!card || !kcontrol))
+ return -EINVAL;
list_del(&kcontrol->list);
card->controls_count -= kcontrol->count;
id = kcontrol->id;
@@ -368,6 +472,8 @@ int snd_ctl_remove(struct snd_card *card, struct snd_kcontrol *kcontrol)
return 0;
}
+EXPORT_SYMBOL(snd_ctl_remove);
+
/**
* snd_ctl_remove_id - remove the control of the given id and release it
* @card: the card instance
@@ -375,8 +481,8 @@ int snd_ctl_remove(struct snd_card *card, struct snd_kcontrol *kcontrol)
*
* Finds the control instance with the given id, removes it from the
* card list and releases it.
- *
- * Returns 0 if successful, or a negative error code on failure.
+ *
+ * Return: 0 if successful, or a negative error code on failure.
*/
int snd_ctl_remove_id(struct snd_card *card, struct snd_ctl_elem_id *id)
{
@@ -394,18 +500,20 @@ int snd_ctl_remove_id(struct snd_card *card, struct snd_ctl_elem_id *id)
return ret;
}
+EXPORT_SYMBOL(snd_ctl_remove_id);
+
/**
- * snd_ctl_remove_unlocked_id - remove the unlocked control of the given id and release it
+ * snd_ctl_remove_user_ctl - remove and release the unlocked user control
* @file: active control handle
* @id: the control id to remove
*
* Finds the control instance with the given id, removes it from the
* card list and releases it.
- *
- * Returns 0 if successful, or a negative error code on failure.
+ *
+ * Return: 0 if successful, or a negative error code on failure.
*/
-static int snd_ctl_remove_unlocked_id(struct snd_ctl_file * file,
- struct snd_ctl_elem_id *id)
+static int snd_ctl_remove_user_ctl(struct snd_ctl_file * file,
+ struct snd_ctl_elem_id *id)
{
struct snd_card *card = file->card;
struct snd_kcontrol *kctl;
@@ -414,20 +522,74 @@ static int snd_ctl_remove_unlocked_id(struct snd_ctl_file * file,
down_write(&card->controls_rwsem);
kctl = snd_ctl_find_id(card, id);
if (kctl == NULL) {
- up_write(&card->controls_rwsem);
- return -ENOENT;
+ ret = -ENOENT;
+ goto error;
+ }
+ if (!(kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_USER)) {
+ ret = -EINVAL;
+ goto error;
}
for (idx = 0; idx < kctl->count; idx++)
if (kctl->vd[idx].owner != NULL && kctl->vd[idx].owner != file) {
- up_write(&card->controls_rwsem);
- return -EBUSY;
+ ret = -EBUSY;
+ goto error;
}
ret = snd_ctl_remove(card, kctl);
+ if (ret < 0)
+ goto error;
+ card->user_ctl_count--;
+error:
up_write(&card->controls_rwsem);
return ret;
}
/**
+ * snd_ctl_activate_id - activate/inactivate the control of the given id
+ * @card: the card instance
+ * @id: the control id to activate/inactivate
+ * @active: non-zero to activate
+ *
+ * Finds the control instance with the given id, and activate or
+ * inactivate the control together with notification, if changed.
+ *
+ * Return: 0 if unchanged, 1 if changed, or a negative error code on failure.
+ */
+int snd_ctl_activate_id(struct snd_card *card, struct snd_ctl_elem_id *id,
+ int active)
+{
+ struct snd_kcontrol *kctl;
+ struct snd_kcontrol_volatile *vd;
+ unsigned int index_offset;
+ int ret;
+
+ down_write(&card->controls_rwsem);
+ kctl = snd_ctl_find_id(card, id);
+ if (kctl == NULL) {
+ ret = -ENOENT;
+ goto unlock;
+ }
+ index_offset = snd_ctl_get_ioff(kctl, &kctl->id);
+ vd = &kctl->vd[index_offset];
+ ret = 0;
+ if (active) {
+ if (!(vd->access & SNDRV_CTL_ELEM_ACCESS_INACTIVE))
+ goto unlock;
+ vd->access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
+ } else {
+ if (vd->access & SNDRV_CTL_ELEM_ACCESS_INACTIVE)
+ goto unlock;
+ vd->access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
+ }
+ ret = 1;
+ unlock:
+ up_write(&card->controls_rwsem);
+ if (ret > 0)
+ snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_INFO, id);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(snd_ctl_activate_id);
+
+/**
* snd_ctl_rename_id - replace the id of a control on the card
* @card: the card instance
* @src_id: the old id
@@ -436,7 +598,7 @@ static int snd_ctl_remove_unlocked_id(struct snd_ctl_file * file,
* Finds the control with the old id from the card, and replaces the
* id with the new one.
*
- * Returns zero if successful, or a negative error code on failure.
+ * Return: Zero if successful, or a negative error code on failure.
*/
int snd_ctl_rename_id(struct snd_card *card, struct snd_ctl_elem_id *src_id,
struct snd_ctl_elem_id *dst_id)
@@ -456,6 +618,8 @@ int snd_ctl_rename_id(struct snd_card *card, struct snd_ctl_elem_id *src_id,
return 0;
}
+EXPORT_SYMBOL(snd_ctl_rename_id);
+
/**
* snd_ctl_find_numid - find the control instance with the given number-id
* @card: the card instance
@@ -463,25 +627,27 @@ int snd_ctl_rename_id(struct snd_card *card, struct snd_ctl_elem_id *src_id,
*
* Finds the control instance with the given number-id from the card.
*
- * Returns the pointer of the instance if found, or NULL if not.
- *
* The caller must down card->controls_rwsem before calling this function
* (if the race condition can happen).
+ *
+ * Return: The pointer of the instance if found, or %NULL if not.
+ *
*/
struct snd_kcontrol *snd_ctl_find_numid(struct snd_card *card, unsigned int numid)
{
- struct list_head *list;
struct snd_kcontrol *kctl;
- snd_assert(card != NULL && numid != 0, return NULL);
- list_for_each(list, &card->controls) {
- kctl = snd_kcontrol(list);
+ if (snd_BUG_ON(!card || !numid))
+ return NULL;
+ list_for_each_entry(kctl, &card->controls, list) {
if (kctl->id.numid <= numid && kctl->id.numid + kctl->count > numid)
return kctl;
}
return NULL;
}
+EXPORT_SYMBOL(snd_ctl_find_numid);
+
/**
* snd_ctl_find_id - find the control instance with the given id
* @card: the card instance
@@ -489,22 +655,22 @@ struct snd_kcontrol *snd_ctl_find_numid(struct snd_card *card, unsigned int numi
*
* Finds the control instance with the given id from the card.
*
- * Returns the pointer of the instance if found, or NULL if not.
- *
* The caller must down card->controls_rwsem before calling this function
* (if the race condition can happen).
+ *
+ * Return: The pointer of the instance if found, or %NULL if not.
+ *
*/
struct snd_kcontrol *snd_ctl_find_id(struct snd_card *card,
struct snd_ctl_elem_id *id)
{
- struct list_head *list;
struct snd_kcontrol *kctl;
- snd_assert(card != NULL && id != NULL, return NULL);
+ if (snd_BUG_ON(!card || !id))
+ return NULL;
if (id->numid != 0)
return snd_ctl_find_numid(card, id->numid);
- list_for_each(list, &card->controls) {
- kctl = snd_kcontrol(list);
+ list_for_each_entry(kctl, &card->controls, list) {
if (kctl->id.iface != id->iface)
continue;
if (kctl->id.device != id->device)
@@ -522,6 +688,8 @@ struct snd_kcontrol *snd_ctl_find_id(struct snd_card *card,
return NULL;
}
+EXPORT_SYMBOL(snd_ctl_find_id);
+
static int snd_ctl_card_info(struct snd_card *card, struct snd_ctl_file * ctl,
unsigned int cmd, void __user *arg)
{
@@ -554,13 +722,12 @@ static int snd_ctl_elem_list(struct snd_card *card,
struct snd_ctl_elem_list list;
struct snd_kcontrol *kctl;
struct snd_ctl_elem_id *dst, *id;
- unsigned int offset, space, first, jidx;
+ unsigned int offset, space, jidx;
if (copy_from_user(&list, _list, sizeof(list)))
return -EFAULT;
offset = list.offset;
space = list.space;
- first = 0;
/* try limit maximum space */
if (space > 16384)
return -ENOMEM;
@@ -632,7 +799,7 @@ static int snd_ctl_elem_info(struct snd_ctl_file *ctl,
#endif
result = kctl->info(kctl, info);
if (result >= 0) {
- snd_assert(info->access == 0, );
+ snd_BUG_ON(info->access);
index_offset = snd_ctl_get_ioff(kctl, &info->id);
vd = &kctl->vd[index_offset];
snd_ctl_build_ioff(&info->id, kctl, index_offset);
@@ -641,7 +808,7 @@ static int snd_ctl_elem_info(struct snd_ctl_file *ctl,
info->access |= SNDRV_CTL_ELEM_ACCESS_LOCK;
if (vd->owner == ctl)
info->access |= SNDRV_CTL_ELEM_ACCESS_OWNER;
- info->owner = vd->owner_pid;
+ info->owner = pid_vnr(vd->owner->pid);
} else {
info->owner = -1;
}
@@ -658,19 +825,24 @@ static int snd_ctl_elem_info_user(struct snd_ctl_file *ctl,
if (copy_from_user(&info, _info, sizeof(info)))
return -EFAULT;
- result = snd_ctl_elem_info(ctl, &info);
+ snd_power_lock(ctl->card);
+ result = snd_power_wait(ctl->card, SNDRV_CTL_POWER_D0);
+ if (result >= 0)
+ result = snd_ctl_elem_info(ctl, &info);
+ snd_power_unlock(ctl->card);
if (result >= 0)
if (copy_to_user(_info, &info, sizeof(info)))
return -EFAULT;
return result;
}
-int snd_ctl_elem_read(struct snd_card *card, struct snd_ctl_elem_value *control)
+static int snd_ctl_elem_read(struct snd_card *card,
+ struct snd_ctl_elem_value *control)
{
struct snd_kcontrol *kctl;
struct snd_kcontrol_volatile *vd;
unsigned int index_offset;
- int result, indirect;
+ int result;
down_read(&card->controls_rwsem);
kctl = snd_ctl_find_id(card, &control->id);
@@ -679,17 +851,12 @@ int snd_ctl_elem_read(struct snd_card *card, struct snd_ctl_elem_value *control)
} else {
index_offset = snd_ctl_get_ioff(kctl, &control->id);
vd = &kctl->vd[index_offset];
- indirect = vd->access & SNDRV_CTL_ELEM_ACCESS_INDIRECT ? 1 : 0;
- if (control->indirect != indirect) {
- result = -EACCES;
- } else {
- if ((vd->access & SNDRV_CTL_ELEM_ACCESS_READ) && kctl->get != NULL) {
- snd_ctl_build_ioff(&control->id, kctl, index_offset);
- result = kctl->get(kctl, control);
- } else {
- result = -EPERM;
- }
- }
+ if ((vd->access & SNDRV_CTL_ELEM_ACCESS_READ) &&
+ kctl->get != NULL) {
+ snd_ctl_build_ioff(&control->id, kctl, index_offset);
+ result = kctl->get(kctl, control);
+ } else
+ result = -EPERM;
}
up_read(&card->controls_rwsem);
return result;
@@ -700,15 +867,16 @@ static int snd_ctl_elem_read_user(struct snd_card *card,
{
struct snd_ctl_elem_value *control;
int result;
-
- control = kmalloc(sizeof(*control), GFP_KERNEL);
- if (control == NULL)
- return -ENOMEM;
- if (copy_from_user(control, _control, sizeof(*control))) {
- kfree(control);
- return -EFAULT;
- }
- result = snd_ctl_elem_read(card, control);
+
+ control = memdup_user(_control, sizeof(*control));
+ if (IS_ERR(control))
+ return PTR_ERR(control);
+
+ snd_power_lock(card);
+ result = snd_power_wait(card, SNDRV_CTL_POWER_D0);
+ if (result >= 0)
+ result = snd_ctl_elem_read(card, control);
+ snd_power_unlock(card);
if (result >= 0)
if (copy_to_user(_control, control, sizeof(*control)))
result = -EFAULT;
@@ -716,13 +884,13 @@ static int snd_ctl_elem_read_user(struct snd_card *card,
return result;
}
-int snd_ctl_elem_write(struct snd_card *card, struct snd_ctl_file *file,
- struct snd_ctl_elem_value *control)
+static int snd_ctl_elem_write(struct snd_card *card, struct snd_ctl_file *file,
+ struct snd_ctl_elem_value *control)
{
struct snd_kcontrol *kctl;
struct snd_kcontrol_volatile *vd;
unsigned int index_offset;
- int result, indirect;
+ int result;
down_read(&card->controls_rwsem);
kctl = snd_ctl_find_id(card, &control->id);
@@ -731,23 +899,19 @@ int snd_ctl_elem_write(struct snd_card *card, struct snd_ctl_file *file,
} else {
index_offset = snd_ctl_get_ioff(kctl, &control->id);
vd = &kctl->vd[index_offset];
- indirect = vd->access & SNDRV_CTL_ELEM_ACCESS_INDIRECT ? 1 : 0;
- if (control->indirect != indirect) {
- result = -EACCES;
+ if (!(vd->access & SNDRV_CTL_ELEM_ACCESS_WRITE) ||
+ kctl->put == NULL ||
+ (file && vd->owner && vd->owner != file)) {
+ result = -EPERM;
} else {
- if (!(vd->access & SNDRV_CTL_ELEM_ACCESS_WRITE) ||
- kctl->put == NULL ||
- (file && vd->owner != NULL && vd->owner != file)) {
- result = -EPERM;
- } else {
- snd_ctl_build_ioff(&control->id, kctl, index_offset);
- result = kctl->put(kctl, control);
- }
- if (result > 0) {
- up_read(&card->controls_rwsem);
- snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &control->id);
- return 0;
- }
+ snd_ctl_build_ioff(&control->id, kctl, index_offset);
+ result = kctl->put(kctl, control);
+ }
+ if (result > 0) {
+ struct snd_ctl_elem_id id = control->id;
+ up_read(&card->controls_rwsem);
+ snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &id);
+ return 0;
}
}
up_read(&card->controls_rwsem);
@@ -758,16 +922,19 @@ static int snd_ctl_elem_write_user(struct snd_ctl_file *file,
struct snd_ctl_elem_value __user *_control)
{
struct snd_ctl_elem_value *control;
+ struct snd_card *card;
int result;
- control = kmalloc(sizeof(*control), GFP_KERNEL);
- if (control == NULL)
- return -ENOMEM;
- if (copy_from_user(control, _control, sizeof(*control))) {
- kfree(control);
- return -EFAULT;
- }
- result = snd_ctl_elem_write(file->card, file, control);
+ control = memdup_user(_control, sizeof(*control));
+ if (IS_ERR(control))
+ return PTR_ERR(control);
+
+ card = file->card;
+ snd_power_lock(card);
+ result = snd_power_wait(card, SNDRV_CTL_POWER_D0);
+ if (result >= 0)
+ result = snd_ctl_elem_write(card, file, control);
+ snd_power_unlock(card);
if (result >= 0)
if (copy_to_user(_control, control, sizeof(*control)))
result = -EFAULT;
@@ -796,7 +963,6 @@ static int snd_ctl_elem_lock(struct snd_ctl_file *file,
result = -EBUSY;
else {
vd->owner = file;
- vd->owner_pid = current->pid;
result = 0;
}
}
@@ -827,7 +993,6 @@ static int snd_ctl_elem_unlock(struct snd_ctl_file *file,
result = -EPERM;
else {
vd->owner = NULL;
- vd->owner_pid = 0;
result = 0;
}
}
@@ -837,10 +1002,12 @@ static int snd_ctl_elem_unlock(struct snd_ctl_file *file,
struct user_element {
struct snd_ctl_elem_info info;
+ struct snd_card *card;
void *elem_data; /* element data */
unsigned long elem_data_size; /* size of element data in bytes */
+ void *tlv_data; /* TLV data */
+ unsigned long tlv_data_size; /* TLV data size */
void *priv_data; /* private data (like strings for enumerated type) */
- unsigned long priv_data_size; /* size of private data in bytes */
};
static int snd_ctl_elem_user_info(struct snd_kcontrol *kcontrol,
@@ -852,12 +1019,36 @@ static int snd_ctl_elem_user_info(struct snd_kcontrol *kcontrol,
return 0;
}
+static int snd_ctl_elem_user_enum_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ struct user_element *ue = kcontrol->private_data;
+ const char *names;
+ unsigned int item;
+
+ item = uinfo->value.enumerated.item;
+
+ *uinfo = ue->info;
+
+ item = min(item, uinfo->value.enumerated.items - 1);
+ uinfo->value.enumerated.item = item;
+
+ names = ue->priv_data;
+ for (; item > 0; --item)
+ names += strlen(names) + 1;
+ strcpy(uinfo->value.enumerated.name, names);
+
+ return 0;
+}
+
static int snd_ctl_elem_user_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct user_element *ue = kcontrol->private_data;
+ mutex_lock(&ue->card->user_ctl_lock);
memcpy(&ucontrol->value, ue->elem_data, ue->elem_data_size);
+ mutex_unlock(&ue->card->user_ctl_lock);
return 0;
}
@@ -866,16 +1057,102 @@ static int snd_ctl_elem_user_put(struct snd_kcontrol *kcontrol,
{
int change;
struct user_element *ue = kcontrol->private_data;
-
+
+ mutex_lock(&ue->card->user_ctl_lock);
change = memcmp(&ucontrol->value, ue->elem_data, ue->elem_data_size) != 0;
if (change)
memcpy(ue->elem_data, &ucontrol->value, ue->elem_data_size);
+ mutex_unlock(&ue->card->user_ctl_lock);
+ return change;
+}
+
+static int snd_ctl_elem_user_tlv(struct snd_kcontrol *kcontrol,
+ int op_flag,
+ unsigned int size,
+ unsigned int __user *tlv)
+{
+ struct user_element *ue = kcontrol->private_data;
+ int change = 0;
+ void *new_data;
+
+ if (op_flag > 0) {
+ if (size > 1024 * 128) /* sane value */
+ return -EINVAL;
+
+ new_data = memdup_user(tlv, size);
+ if (IS_ERR(new_data))
+ return PTR_ERR(new_data);
+ mutex_lock(&ue->card->user_ctl_lock);
+ change = ue->tlv_data_size != size;
+ if (!change)
+ change = memcmp(ue->tlv_data, new_data, size);
+ kfree(ue->tlv_data);
+ ue->tlv_data = new_data;
+ ue->tlv_data_size = size;
+ mutex_unlock(&ue->card->user_ctl_lock);
+ } else {
+ int ret = 0;
+
+ mutex_lock(&ue->card->user_ctl_lock);
+ if (!ue->tlv_data_size || !ue->tlv_data) {
+ ret = -ENXIO;
+ goto err_unlock;
+ }
+ if (size < ue->tlv_data_size) {
+ ret = -ENOSPC;
+ goto err_unlock;
+ }
+ if (copy_to_user(tlv, ue->tlv_data, ue->tlv_data_size))
+ ret = -EFAULT;
+err_unlock:
+ mutex_unlock(&ue->card->user_ctl_lock);
+ if (ret)
+ return ret;
+ }
return change;
}
+static int snd_ctl_elem_init_enum_names(struct user_element *ue)
+{
+ char *names, *p;
+ size_t buf_len, name_len;
+ unsigned int i;
+ const uintptr_t user_ptrval = ue->info.value.enumerated.names_ptr;
+
+ if (ue->info.value.enumerated.names_length > 64 * 1024)
+ return -EINVAL;
+
+ names = memdup_user((const void __user *)user_ptrval,
+ ue->info.value.enumerated.names_length);
+ if (IS_ERR(names))
+ return PTR_ERR(names);
+
+ /* check that there are enough valid names */
+ buf_len = ue->info.value.enumerated.names_length;
+ p = names;
+ for (i = 0; i < ue->info.value.enumerated.items; ++i) {
+ name_len = strnlen(p, buf_len);
+ if (name_len == 0 || name_len >= 64 || name_len == buf_len) {
+ kfree(names);
+ return -EINVAL;
+ }
+ p += name_len + 1;
+ buf_len -= name_len + 1;
+ }
+
+ ue->priv_data = names;
+ ue->info.value.enumerated.names_ptr = 0;
+
+ return 0;
+}
+
static void snd_ctl_elem_user_free(struct snd_kcontrol *kcontrol)
{
- kfree(kcontrol->private_data);
+ struct user_element *ue = kcontrol->private_data;
+
+ kfree(ue->tlv_data);
+ kfree(ue->priv_data);
+ kfree(ue);
}
static int snd_ctl_elem_add(struct snd_ctl_file *file,
@@ -887,45 +1164,42 @@ static int snd_ctl_elem_add(struct snd_ctl_file *file,
long private_size;
struct user_element *ue;
int idx, err;
-
- if (card->user_ctl_count >= MAX_USER_CONTROLS)
- return -ENOMEM;
- if (info->count > 1024)
+
+ if (info->count < 1)
return -EINVAL;
access = info->access == 0 ? SNDRV_CTL_ELEM_ACCESS_READWRITE :
(info->access & (SNDRV_CTL_ELEM_ACCESS_READWRITE|
- SNDRV_CTL_ELEM_ACCESS_INACTIVE));
+ SNDRV_CTL_ELEM_ACCESS_INACTIVE|
+ SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE));
info->id.numid = 0;
memset(&kctl, 0, sizeof(kctl));
- down_write(&card->controls_rwsem);
- _kctl = snd_ctl_find_id(card, &info->id);
- err = 0;
- if (_kctl) {
- if (replace)
- err = snd_ctl_remove(card, _kctl);
- else
- err = -EBUSY;
- } else {
- if (replace)
- err = -ENOENT;
+
+ if (replace) {
+ err = snd_ctl_remove_user_ctl(file, &info->id);
+ if (err)
+ return err;
}
- up_write(&card->controls_rwsem);
- if (err < 0)
- return err;
+
+ if (card->user_ctl_count >= MAX_USER_CONTROLS)
+ return -ENOMEM;
+
memcpy(&kctl.id, &info->id, sizeof(info->id));
kctl.count = info->owner ? info->owner : 1;
access |= SNDRV_CTL_ELEM_ACCESS_USER;
- kctl.info = snd_ctl_elem_user_info;
+ if (info->type == SNDRV_CTL_ELEM_TYPE_ENUMERATED)
+ kctl.info = snd_ctl_elem_user_enum_info;
+ else
+ kctl.info = snd_ctl_elem_user_info;
if (access & SNDRV_CTL_ELEM_ACCESS_READ)
kctl.get = snd_ctl_elem_user_get;
if (access & SNDRV_CTL_ELEM_ACCESS_WRITE)
kctl.put = snd_ctl_elem_user_put;
+ if (access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE) {
+ kctl.tlv.c = snd_ctl_elem_user_tlv;
+ access |= SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK;
+ }
switch (info->type) {
case SNDRV_CTL_ELEM_TYPE_BOOLEAN:
- private_size = sizeof(char);
- if (info->count > 128)
- return -EINVAL;
- break;
case SNDRV_CTL_ELEM_TYPE_INTEGER:
private_size = sizeof(long);
if (info->count > 128)
@@ -936,6 +1210,11 @@ static int snd_ctl_elem_add(struct snd_ctl_file *file,
if (info->count > 64)
return -EINVAL;
break;
+ case SNDRV_CTL_ELEM_TYPE_ENUMERATED:
+ private_size = sizeof(unsigned int);
+ if (info->count > 128 || info->value.enumerated.items == 0)
+ return -EINVAL;
+ break;
case SNDRV_CTL_ELEM_TYPE_BYTES:
private_size = sizeof(unsigned char);
if (info->count > 512)
@@ -953,23 +1232,31 @@ static int snd_ctl_elem_add(struct snd_ctl_file *file,
ue = kzalloc(sizeof(struct user_element) + private_size, GFP_KERNEL);
if (ue == NULL)
return -ENOMEM;
+ ue->card = card;
ue->info = *info;
+ ue->info.access = 0;
ue->elem_data = (char *)ue + sizeof(*ue);
ue->elem_data_size = private_size;
+ if (ue->info.type == SNDRV_CTL_ELEM_TYPE_ENUMERATED) {
+ err = snd_ctl_elem_init_enum_names(ue);
+ if (err < 0) {
+ kfree(ue);
+ return err;
+ }
+ }
kctl.private_free = snd_ctl_elem_user_free;
_kctl = snd_ctl_new(&kctl, access);
if (_kctl == NULL) {
- kfree(_kctl->private_data);
+ kfree(ue->priv_data);
+ kfree(ue);
return -ENOMEM;
}
_kctl->private_data = ue;
for (idx = 0; idx < _kctl->count; idx++)
_kctl->vd[idx].owner = file;
err = snd_ctl_add(card, _kctl);
- if (err < 0) {
- snd_ctl_free_one(_kctl);
+ if (err < 0)
return err;
- }
down_write(&card->controls_rwsem);
card->user_ctl_count++;
@@ -991,18 +1278,10 @@ static int snd_ctl_elem_remove(struct snd_ctl_file *file,
struct snd_ctl_elem_id __user *_id)
{
struct snd_ctl_elem_id id;
- int err;
if (copy_from_user(&id, _id, sizeof(id)))
return -EFAULT;
- err = snd_ctl_remove_unlocked_id(file, &id);
- if (! err) {
- struct snd_card *card = file->card;
- down_write(&card->controls_rwsem);
- card->user_ctl_count--;
- up_write(&card->controls_rwsem);
- }
- return err;
+ return snd_ctl_remove_user_ctl(file, &id);
}
static int snd_ctl_subscribe_events(struct snd_ctl_file *file, int __user *ptr)
@@ -1026,11 +1305,72 @@ static int snd_ctl_subscribe_events(struct snd_ctl_file *file, int __user *ptr)
return 0;
}
+static int snd_ctl_tlv_ioctl(struct snd_ctl_file *file,
+ struct snd_ctl_tlv __user *_tlv,
+ int op_flag)
+{
+ struct snd_card *card = file->card;
+ struct snd_ctl_tlv tlv;
+ struct snd_kcontrol *kctl;
+ struct snd_kcontrol_volatile *vd;
+ unsigned int len;
+ int err = 0;
+
+ if (copy_from_user(&tlv, _tlv, sizeof(tlv)))
+ return -EFAULT;
+ if (tlv.length < sizeof(unsigned int) * 2)
+ return -EINVAL;
+ down_read(&card->controls_rwsem);
+ kctl = snd_ctl_find_numid(card, tlv.numid);
+ if (kctl == NULL) {
+ err = -ENOENT;
+ goto __kctl_end;
+ }
+ if (kctl->tlv.p == NULL) {
+ err = -ENXIO;
+ goto __kctl_end;
+ }
+ vd = &kctl->vd[tlv.numid - kctl->id.numid];
+ if ((op_flag == 0 && (vd->access & SNDRV_CTL_ELEM_ACCESS_TLV_READ) == 0) ||
+ (op_flag > 0 && (vd->access & SNDRV_CTL_ELEM_ACCESS_TLV_WRITE) == 0) ||
+ (op_flag < 0 && (vd->access & SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND) == 0)) {
+ err = -ENXIO;
+ goto __kctl_end;
+ }
+ if (vd->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
+ if (vd->owner != NULL && vd->owner != file) {
+ err = -EPERM;
+ goto __kctl_end;
+ }
+ err = kctl->tlv.c(kctl, op_flag, tlv.length, _tlv->tlv);
+ if (err > 0) {
+ struct snd_ctl_elem_id id = kctl->id;
+ up_read(&card->controls_rwsem);
+ snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_TLV, &id);
+ return 0;
+ }
+ } else {
+ if (op_flag) {
+ err = -ENXIO;
+ goto __kctl_end;
+ }
+ len = kctl->tlv.p[1] + 2 * sizeof(unsigned int);
+ if (tlv.length < len) {
+ err = -ENOMEM;
+ goto __kctl_end;
+ }
+ if (copy_to_user(_tlv->tlv, kctl->tlv.p, len))
+ err = -EFAULT;
+ }
+ __kctl_end:
+ up_read(&card->controls_rwsem);
+ return err;
+}
+
static long snd_ctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
struct snd_ctl_file *ctl;
struct snd_card *card;
- struct list_head *list;
struct snd_kctl_ioctl *p;
void __user *argp = (void __user *)arg;
int __user *ip = argp;
@@ -1038,18 +1378,19 @@ static long snd_ctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg
ctl = file->private_data;
card = ctl->card;
- snd_assert(card != NULL, return -ENXIO);
+ if (snd_BUG_ON(!card))
+ return -ENXIO;
switch (cmd) {
case SNDRV_CTL_IOCTL_PVERSION:
return put_user(SNDRV_CTL_VERSION, ip) ? -EFAULT : 0;
case SNDRV_CTL_IOCTL_CARD_INFO:
return snd_ctl_card_info(card, ctl, cmd, argp);
case SNDRV_CTL_IOCTL_ELEM_LIST:
- return snd_ctl_elem_list(ctl->card, argp);
+ return snd_ctl_elem_list(card, argp);
case SNDRV_CTL_IOCTL_ELEM_INFO:
return snd_ctl_elem_info_user(ctl, argp);
case SNDRV_CTL_IOCTL_ELEM_READ:
- return snd_ctl_elem_read_user(ctl->card, argp);
+ return snd_ctl_elem_read_user(card, argp);
case SNDRV_CTL_IOCTL_ELEM_WRITE:
return snd_ctl_elem_write_user(ctl, argp);
case SNDRV_CTL_IOCTL_ELEM_LOCK:
@@ -1064,6 +1405,12 @@ static long snd_ctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg
return snd_ctl_elem_remove(ctl, argp);
case SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS:
return snd_ctl_subscribe_events(ctl, ip);
+ case SNDRV_CTL_IOCTL_TLV_READ:
+ return snd_ctl_tlv_ioctl(ctl, argp, 0);
+ case SNDRV_CTL_IOCTL_TLV_WRITE:
+ return snd_ctl_tlv_ioctl(ctl, argp, 1);
+ case SNDRV_CTL_IOCTL_TLV_COMMAND:
+ return snd_ctl_tlv_ioctl(ctl, argp, -1);
case SNDRV_CTL_IOCTL_POWER:
return -ENOPROTOOPT;
case SNDRV_CTL_IOCTL_POWER_STATE:
@@ -1074,8 +1421,7 @@ static long snd_ctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg
#endif
}
down_read(&snd_ioctl_rwsem);
- list_for_each(list, &snd_control_ioctls) {
- p = list_entry(list, struct snd_kctl_ioctl, list);
+ list_for_each_entry(p, &snd_control_ioctls, list) {
err = p->fioctl(card, ctl, cmd, arg);
if (err != -ENOIOCTLCMD) {
up_read(&snd_ioctl_rwsem);
@@ -1083,7 +1429,7 @@ static long snd_ctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg
}
}
up_read(&snd_ioctl_rwsem);
- snd_printdd("unknown ioctl = 0x%x\n", cmd);
+ dev_dbg(card->dev, "unknown ioctl = 0x%x\n", cmd);
return -ENOTTY;
}
@@ -1095,7 +1441,8 @@ static ssize_t snd_ctl_read(struct file *file, char __user *buffer,
ssize_t result = 0;
ctl = file->private_data;
- snd_assert(ctl != NULL && ctl->card != NULL, return -ENXIO);
+ if (snd_BUG_ON(!ctl || !ctl->card))
+ return -ENXIO;
if (!ctl->subscribed)
return -EBADFD;
if (count < sizeof(struct snd_ctl_event))
@@ -1116,8 +1463,10 @@ static ssize_t snd_ctl_read(struct file *file, char __user *buffer,
spin_unlock_irq(&ctl->read_lock);
schedule();
remove_wait_queue(&ctl->change_sleep, &wait);
+ if (ctl->card->shutdown)
+ return -ENODEV;
if (signal_pending(current))
- return result > 0 ? result : -ERESTARTSYS;
+ return -ERESTARTSYS;
spin_lock_irq(&ctl->read_lock);
}
kev = snd_kctl_event(ctl->events.next);
@@ -1182,11 +1531,15 @@ int snd_ctl_register_ioctl(snd_kctl_ioctl_func_t fcn)
return _snd_ctl_register_ioctl(fcn, &snd_control_ioctls);
}
+EXPORT_SYMBOL(snd_ctl_register_ioctl);
+
#ifdef CONFIG_COMPAT
int snd_ctl_register_ioctl_compat(snd_kctl_ioctl_func_t fcn)
{
return _snd_ctl_register_ioctl(fcn, &snd_control_compat_ioctls);
}
+
+EXPORT_SYMBOL(snd_ctl_register_ioctl_compat);
#endif
/*
@@ -1195,13 +1548,12 @@ int snd_ctl_register_ioctl_compat(snd_kctl_ioctl_func_t fcn)
static int _snd_ctl_unregister_ioctl(snd_kctl_ioctl_func_t fcn,
struct list_head *lists)
{
- struct list_head *list;
struct snd_kctl_ioctl *p;
- snd_assert(fcn != NULL, return -EINVAL);
+ if (snd_BUG_ON(!fcn))
+ return -EINVAL;
down_write(&snd_ioctl_rwsem);
- list_for_each(list, lists) {
- p = list_entry(list, struct snd_kctl_ioctl, list);
+ list_for_each_entry(p, lists, list) {
if (p->fioctl == fcn) {
list_del(&p->list);
up_write(&snd_ioctl_rwsem);
@@ -1219,23 +1571,23 @@ int snd_ctl_unregister_ioctl(snd_kctl_ioctl_func_t fcn)
return _snd_ctl_unregister_ioctl(fcn, &snd_control_ioctls);
}
+EXPORT_SYMBOL(snd_ctl_unregister_ioctl);
+
#ifdef CONFIG_COMPAT
int snd_ctl_unregister_ioctl_compat(snd_kctl_ioctl_func_t fcn)
{
return _snd_ctl_unregister_ioctl(fcn, &snd_control_compat_ioctls);
}
+EXPORT_SYMBOL(snd_ctl_unregister_ioctl_compat);
#endif
static int snd_ctl_fasync(int fd, struct file * file, int on)
{
struct snd_ctl_file *ctl;
- int err;
+
ctl = file->private_data;
- err = fasync_helper(fd, file, on, &ctl->fasync);
- if (err < 0)
- return err;
- return 0;
+ return fasync_helper(fd, file, on, &ctl->fasync);
}
/*
@@ -1251,12 +1603,13 @@ static int snd_ctl_fasync(int fd, struct file * file, int on)
* INIT PART
*/
-static struct file_operations snd_ctl_f_ops =
+static const struct file_operations snd_ctl_f_ops =
{
.owner = THIS_MODULE,
.read = snd_ctl_read,
.open = snd_ctl_open,
.release = snd_ctl_release,
+ .llseek = no_llseek,
.poll = snd_ctl_poll,
.unlocked_ioctl = snd_ctl_ioctl,
.compat_ioctl = snd_ctl_ioctl_compat,
@@ -1272,9 +1625,11 @@ static int snd_ctl_dev_register(struct snd_device *device)
int err, cardnum;
char name[16];
- snd_assert(card != NULL, return -ENXIO);
+ if (snd_BUG_ON(!card))
+ return -ENXIO;
cardnum = card->number;
- snd_assert(cardnum >= 0 && cardnum < SNDRV_CARDS, return -ENXIO);
+ if (snd_BUG_ON(cardnum < 0 || cardnum >= SNDRV_CARDS))
+ return -ENXIO;
sprintf(name, "controlC%i", cardnum);
if ((err = snd_register_device(SNDRV_DEVICE_TYPE_CONTROL, card, -1,
&snd_ctl_f_ops, card, name)) < 0)
@@ -1288,16 +1643,25 @@ static int snd_ctl_dev_register(struct snd_device *device)
static int snd_ctl_dev_disconnect(struct snd_device *device)
{
struct snd_card *card = device->device_data;
- struct list_head *flist;
struct snd_ctl_file *ctl;
+ int err, cardnum;
- down_read(&card->controls_rwsem);
- list_for_each(flist, &card->ctl_files) {
- ctl = snd_ctl_file(flist);
+ if (snd_BUG_ON(!card))
+ return -ENXIO;
+ cardnum = card->number;
+ if (snd_BUG_ON(cardnum < 0 || cardnum >= SNDRV_CARDS))
+ return -ENXIO;
+
+ read_lock(&card->ctl_files_rwlock);
+ list_for_each_entry(ctl, &card->ctl_files, list) {
wake_up(&ctl->change_sleep);
kill_fasync(&ctl->fasync, SIGIO, POLL_ERR);
}
- up_read(&card->controls_rwsem);
+ read_unlock(&card->ctl_files_rwlock);
+
+ if ((err = snd_unregister_device(SNDRV_DEVICE_TYPE_CONTROL,
+ card, -1)) < 0)
+ return err;
return 0;
}
@@ -1319,23 +1683,6 @@ static int snd_ctl_dev_free(struct snd_device *device)
}
/*
- * de-registration of the control device
- */
-static int snd_ctl_dev_unregister(struct snd_device *device)
-{
- struct snd_card *card = device->device_data;
- int err, cardnum;
-
- snd_assert(card != NULL, return -ENXIO);
- cardnum = card->number;
- snd_assert(cardnum >= 0 && cardnum < SNDRV_CARDS, return -ENXIO);
- if ((err = snd_unregister_device(SNDRV_DEVICE_TYPE_CONTROL,
- card, -1)) < 0)
- return err;
- return snd_ctl_dev_free(device);
-}
-
-/*
* create control core:
* called from init.c
*/
@@ -1345,9 +1692,64 @@ int snd_ctl_create(struct snd_card *card)
.dev_free = snd_ctl_dev_free,
.dev_register = snd_ctl_dev_register,
.dev_disconnect = snd_ctl_dev_disconnect,
- .dev_unregister = snd_ctl_dev_unregister
};
- snd_assert(card != NULL, return -ENXIO);
+ if (snd_BUG_ON(!card))
+ return -ENXIO;
return snd_device_new(card, SNDRV_DEV_CONTROL, card, &ops);
}
+
+/*
+ * Frequently used control callbacks/helpers
+ */
+int snd_ctl_boolean_mono_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+ uinfo->count = 1;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = 1;
+ return 0;
+}
+
+EXPORT_SYMBOL(snd_ctl_boolean_mono_info);
+
+int snd_ctl_boolean_stereo_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+ uinfo->count = 2;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = 1;
+ return 0;
+}
+
+EXPORT_SYMBOL(snd_ctl_boolean_stereo_info);
+
+/**
+ * snd_ctl_enum_info - fills the info structure for an enumerated control
+ * @info: the structure to be filled
+ * @channels: the number of the control's channels; often one
+ * @items: the number of control values; also the size of @names
+ * @names: an array containing the names of all control values
+ *
+ * Sets all required fields in @info to their appropriate values.
+ * If the control's accessibility is not the default (readable and writable),
+ * the caller has to fill @info->access.
+ *
+ * Return: Zero.
+ */
+int snd_ctl_enum_info(struct snd_ctl_elem_info *info, unsigned int channels,
+ unsigned int items, const char *const names[])
+{
+ info->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
+ info->count = channels;
+ info->value.enumerated.items = items;
+ if (info->value.enumerated.item >= items)
+ info->value.enumerated.item = items - 1;
+ strlcpy(info->value.enumerated.name,
+ names[info->value.enumerated.item],
+ sizeof(info->value.enumerated.name));
+ return 0;
+}
+EXPORT_SYMBOL(snd_ctl_enum_info);
diff --git a/sound/core/control_compat.c b/sound/core/control_compat.c
index 418c6d4e5da..b9c0910fb8c 100644
--- a/sound/core/control_compat.c
+++ b/sound/core/control_compat.c
@@ -21,6 +21,7 @@
/* this file included from control.c */
#include <linux/compat.h>
+#include <linux/slab.h>
struct snd_ctl_elem_list32 {
u32 offset;
@@ -82,6 +83,8 @@ struct snd_ctl_elem_info32 {
u32 items;
u32 item;
char name[64];
+ u64 names_ptr;
+ u32 names_length;
} enumerated;
unsigned char reserved[128];
} value;
@@ -107,7 +110,13 @@ static int snd_ctl_elem_info_compat(struct snd_ctl_file *ctl,
*/
if (get_user(data->value.enumerated.item, &data32->value.enumerated.item))
goto error;
- err = snd_ctl_elem_info(ctl, data);
+
+ snd_power_lock(ctl->card);
+ err = snd_power_wait(ctl->card, SNDRV_CTL_POWER_D0);
+ if (err >= 0)
+ err = snd_ctl_elem_info(ctl, data);
+ snd_power_unlock(ctl->card);
+
if (err < 0)
goto error;
/* restore info to 32bit */
@@ -167,7 +176,7 @@ static int get_ctl_type(struct snd_card *card, struct snd_ctl_elem_id *id,
int *countp)
{
struct snd_kcontrol *kctl;
- struct snd_ctl_elem_info info;
+ struct snd_ctl_elem_info *info;
int err;
down_read(&card->controls_rwsem);
@@ -176,13 +185,19 @@ static int get_ctl_type(struct snd_card *card, struct snd_ctl_elem_id *id,
up_read(&card->controls_rwsem);
return -ENXIO;
}
- info.id = *id;
- err = kctl->info(kctl, &info);
+ info = kzalloc(sizeof(*info), GFP_KERNEL);
+ if (info == NULL) {
+ up_read(&card->controls_rwsem);
+ return -ENOMEM;
+ }
+ info->id = *id;
+ err = kctl->info(kctl, info);
up_read(&card->controls_rwsem);
if (err >= 0) {
- err = info.type;
- *countp = info.count;
+ err = info->type;
+ *countp = info->count;
}
+ kfree(info);
return err;
}
@@ -207,7 +222,8 @@ static int copy_ctl_value_from_user(struct snd_card *card,
struct snd_ctl_elem_value32 __user *data32,
int *typep, int *countp)
{
- int i, type, count, size;
+ int i, type, size;
+ int uninitialized_var(count);
unsigned int indirect;
if (copy_from_user(&data->id, &data32->id, sizeof(data->id)))
@@ -231,7 +247,7 @@ static int copy_ctl_value_from_user(struct snd_card *card,
} else {
size = get_elem_size(type, count);
if (size < 0) {
- printk(KERN_ERR "snd_ioctl32_ctl_elem_value: unknown type %d\n", type);
+ dev_err(card->dev, "snd_ioctl32_ctl_elem_value: unknown type %d\n", type);
return -EINVAL;
}
if (copy_from_user(data->value.bytes.data,
@@ -280,9 +296,14 @@ static int snd_ctl_elem_read_user_compat(struct snd_card *card,
if ((err = copy_ctl_value_from_user(card, data, data32, &type, &count)) < 0)
goto error;
- if ((err = snd_ctl_elem_read(card, data)) < 0)
- goto error;
- err = copy_ctl_value_to_user(data32, data, type, count);
+
+ snd_power_lock(card);
+ err = snd_power_wait(card, SNDRV_CTL_POWER_D0);
+ if (err >= 0)
+ err = snd_ctl_elem_read(card, data);
+ snd_power_unlock(card);
+ if (err >= 0)
+ err = copy_ctl_value_to_user(data32, data, type, count);
error:
kfree(data);
return err;
@@ -292,17 +313,23 @@ static int snd_ctl_elem_write_user_compat(struct snd_ctl_file *file,
struct snd_ctl_elem_value32 __user *data32)
{
struct snd_ctl_elem_value *data;
+ struct snd_card *card = file->card;
int err, type, count;
data = kzalloc(sizeof(*data), GFP_KERNEL);
if (data == NULL)
return -ENOMEM;
- if ((err = copy_ctl_value_from_user(file->card, data, data32, &type, &count)) < 0)
- goto error;
- if ((err = snd_ctl_elem_write(file->card, file, data)) < 0)
+ if ((err = copy_ctl_value_from_user(card, data, data32, &type, &count)) < 0)
goto error;
- err = copy_ctl_value_to_user(data32, data, type, count);
+
+ snd_power_lock(card);
+ err = snd_power_wait(card, SNDRV_CTL_POWER_D0);
+ if (err >= 0)
+ err = snd_ctl_elem_write(card, file, data);
+ snd_power_unlock(card);
+ if (err >= 0)
+ err = copy_ctl_value_to_user(data32, data, type, count);
error:
kfree(data);
return err;
@@ -347,6 +374,8 @@ static int snd_ctl_elem_add_compat(struct snd_ctl_file *file,
&data32->value.enumerated,
sizeof(data->value.enumerated)))
goto error;
+ data->value.enumerated.names_ptr =
+ (uintptr_t)compat_ptr(data->value.enumerated.names_ptr);
break;
default:
break;
@@ -369,12 +398,13 @@ enum {
static inline long snd_ctl_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg)
{
struct snd_ctl_file *ctl;
- struct list_head *list;
+ struct snd_kctl_ioctl *p;
void __user *argp = compat_ptr(arg);
int err;
ctl = file->private_data;
- snd_assert(ctl && ctl->card, return -ENXIO);
+ if (snd_BUG_ON(!ctl || !ctl->card))
+ return -ENXIO;
switch (cmd) {
case SNDRV_CTL_IOCTL_PVERSION:
@@ -384,6 +414,10 @@ static inline long snd_ctl_ioctl_compat(struct file *file, unsigned int cmd, uns
case SNDRV_CTL_IOCTL_POWER_STATE:
case SNDRV_CTL_IOCTL_ELEM_LOCK:
case SNDRV_CTL_IOCTL_ELEM_UNLOCK:
+ case SNDRV_CTL_IOCTL_ELEM_REMOVE:
+ case SNDRV_CTL_IOCTL_TLV_READ:
+ case SNDRV_CTL_IOCTL_TLV_WRITE:
+ case SNDRV_CTL_IOCTL_TLV_COMMAND:
return snd_ctl_ioctl(file, cmd, (unsigned long)argp);
case SNDRV_CTL_IOCTL_ELEM_LIST32:
return snd_ctl_elem_list_compat(ctl->card, argp);
@@ -400,8 +434,7 @@ static inline long snd_ctl_ioctl_compat(struct file *file, unsigned int cmd, uns
}
down_read(&snd_ioctl_rwsem);
- list_for_each(list, &snd_control_compat_ioctls) {
- struct snd_kctl_ioctl *p = list_entry(list, struct snd_kctl_ioctl, list);
+ list_for_each_entry(p, &snd_control_compat_ioctls, list) {
if (p->fioctl) {
err = p->fioctl(ctl->card, ctl, cmd, arg);
if (err != -ENOIOCTLCMD) {
diff --git a/sound/core/ctljack.c b/sound/core/ctljack.c
new file mode 100644
index 00000000000..e4b38fbe51d
--- /dev/null
+++ b/sound/core/ctljack.c
@@ -0,0 +1,56 @@
+/*
+ * Helper functions for jack-detection kcontrols
+ *
+ * Copyright (c) 2011 Takashi Iwai <tiwai@suse.de>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/export.h>
+#include <sound/core.h>
+#include <sound/control.h>
+
+#define jack_detect_kctl_info snd_ctl_boolean_mono_info
+
+static int jack_detect_kctl_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ ucontrol->value.integer.value[0] = kcontrol->private_value;
+ return 0;
+}
+
+static struct snd_kcontrol_new jack_detect_kctl = {
+ /* name is filled later */
+ .iface = SNDRV_CTL_ELEM_IFACE_CARD,
+ .access = SNDRV_CTL_ELEM_ACCESS_READ,
+ .info = jack_detect_kctl_info,
+ .get = jack_detect_kctl_get,
+};
+
+struct snd_kcontrol *
+snd_kctl_jack_new(const char *name, int idx, void *private_data)
+{
+ struct snd_kcontrol *kctl;
+ kctl = snd_ctl_new1(&jack_detect_kctl, private_data);
+ if (!kctl)
+ return NULL;
+ snprintf(kctl->id.name, sizeof(kctl->id.name), "%s Jack", name);
+ kctl->id.index = idx;
+ kctl->private_value = 0;
+ return kctl;
+}
+EXPORT_SYMBOL_GPL(snd_kctl_jack_new);
+
+void snd_kctl_jack_report(struct snd_card *card,
+ struct snd_kcontrol *kctl, bool status)
+{
+ if (kctl->private_value == status)
+ return;
+ kctl->private_value = status;
+ snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id);
+}
+EXPORT_SYMBOL_GPL(snd_kctl_jack_report);
diff --git a/sound/core/device.c b/sound/core/device.c
index b1cf6ec5678..41bec3075ae 100644
--- a/sound/core/device.c
+++ b/sound/core/device.c
@@ -1,6 +1,6 @@
/*
* Device management routines
- * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
*
*
* This program is free software; you can redistribute it and/or modify
@@ -19,9 +19,9 @@
*
*/
-#include <sound/driver.h>
#include <linux/slab.h>
#include <linux/time.h>
+#include <linux/export.h>
#include <linux/errno.h>
#include <sound/core.h>
@@ -39,29 +39,74 @@
* The data pointer plays a role as the identifier, too, so the
* pointer address must be unique and unchanged.
*
- * Returns zero if successful, or a negative error code on failure.
+ * Return: Zero if successful, or a negative error code on failure.
*/
-int snd_device_new(struct snd_card *card, snd_device_type_t type,
+int snd_device_new(struct snd_card *card, enum snd_device_type type,
void *device_data, struct snd_device_ops *ops)
{
struct snd_device *dev;
+ struct list_head *p;
- snd_assert(card != NULL, return -ENXIO);
- snd_assert(device_data != NULL, return -ENXIO);
- snd_assert(ops != NULL, return -ENXIO);
+ if (snd_BUG_ON(!card || !device_data || !ops))
+ return -ENXIO;
dev = kzalloc(sizeof(*dev), GFP_KERNEL);
if (dev == NULL) {
- snd_printk(KERN_ERR "Cannot allocate device\n");
+ dev_err(card->dev, "Cannot allocate device, type=%d\n", type);
return -ENOMEM;
}
+ INIT_LIST_HEAD(&dev->list);
dev->card = card;
dev->type = type;
dev->state = SNDRV_DEV_BUILD;
dev->device_data = device_data;
dev->ops = ops;
- list_add(&dev->list, &card->devices); /* add to the head of list */
+
+ /* insert the entry in an incrementally sorted list */
+ list_for_each_prev(p, &card->devices) {
+ struct snd_device *pdev = list_entry(p, struct snd_device, list);
+ if ((unsigned int)pdev->type <= (unsigned int)type)
+ break;
+ }
+
+ list_add(&dev->list, p);
return 0;
}
+EXPORT_SYMBOL(snd_device_new);
+
+static int __snd_device_disconnect(struct snd_device *dev)
+{
+ if (dev->state == SNDRV_DEV_REGISTERED) {
+ if (dev->ops->dev_disconnect &&
+ dev->ops->dev_disconnect(dev))
+ dev_err(dev->card->dev, "device disconnect failure\n");
+ dev->state = SNDRV_DEV_DISCONNECTED;
+ }
+ return 0;
+}
+
+static void __snd_device_free(struct snd_device *dev)
+{
+ /* unlink */
+ list_del(&dev->list);
+
+ __snd_device_disconnect(dev);
+ if (dev->ops->dev_free) {
+ if (dev->ops->dev_free(dev))
+ dev_err(dev->card->dev, "device free failure\n");
+ }
+ kfree(dev);
+}
+
+static struct snd_device *look_for_dev(struct snd_card *card, void *device_data)
+{
+ struct snd_device *dev;
+
+ list_for_each_entry(dev, &card->devices, list)
+ if (dev->device_data == device_data)
+ return dev;
+
+ return NULL;
+}
/**
* snd_device_free - release the device from the card
@@ -69,79 +114,35 @@ int snd_device_new(struct snd_card *card, snd_device_type_t type,
* @device_data: the data pointer to release
*
* Removes the device from the list on the card and invokes the
- * callback, dev_unregister or dev_free, corresponding to the state.
+ * callbacks, dev_disconnect and dev_free, corresponding to the state.
* Then release the device.
- *
- * Returns zero if successful, or a negative error code on failure or if the
- * device not found.
*/
-int snd_device_free(struct snd_card *card, void *device_data)
+void snd_device_free(struct snd_card *card, void *device_data)
{
- struct list_head *list;
struct snd_device *dev;
- snd_assert(card != NULL, return -ENXIO);
- snd_assert(device_data != NULL, return -ENXIO);
- list_for_each(list, &card->devices) {
- dev = snd_device(list);
- if (dev->device_data != device_data)
- continue;
- /* unlink */
- list_del(&dev->list);
- if ((dev->state == SNDRV_DEV_REGISTERED ||
- dev->state == SNDRV_DEV_DISCONNECTED) &&
- dev->ops->dev_unregister) {
- if (dev->ops->dev_unregister(dev))
- snd_printk(KERN_ERR "device unregister failure\n");
- } else {
- if (dev->ops->dev_free) {
- if (dev->ops->dev_free(dev))
- snd_printk(KERN_ERR "device free failure\n");
- }
- }
- kfree(dev);
- return 0;
- }
- snd_printd("device free %p (from %p), not found\n", device_data,
- __builtin_return_address(0));
- return -ENXIO;
+ if (snd_BUG_ON(!card || !device_data))
+ return;
+ dev = look_for_dev(card, device_data);
+ if (dev)
+ __snd_device_free(dev);
+ else
+ dev_dbg(card->dev, "device free %p (from %pF), not found\n",
+ device_data, __builtin_return_address(0));
}
+EXPORT_SYMBOL(snd_device_free);
-/**
- * snd_device_disconnect - disconnect the device
- * @card: the card instance
- * @device_data: the data pointer to disconnect
- *
- * Turns the device into the disconnection state, invoking
- * dev_disconnect callback, if the device was already registered.
- *
- * Usually called from snd_card_disconnect().
- *
- * Returns zero if successful, or a negative error code on failure or if the
- * device not found.
- */
-int snd_device_disconnect(struct snd_card *card, void *device_data)
+static int __snd_device_register(struct snd_device *dev)
{
- struct list_head *list;
- struct snd_device *dev;
-
- snd_assert(card != NULL, return -ENXIO);
- snd_assert(device_data != NULL, return -ENXIO);
- list_for_each(list, &card->devices) {
- dev = snd_device(list);
- if (dev->device_data != device_data)
- continue;
- if (dev->state == SNDRV_DEV_REGISTERED &&
- dev->ops->dev_disconnect) {
- if (dev->ops->dev_disconnect(dev))
- snd_printk(KERN_ERR "device disconnect failure\n");
- dev->state = SNDRV_DEV_DISCONNECTED;
+ if (dev->state == SNDRV_DEV_BUILD) {
+ if (dev->ops->dev_register) {
+ int err = dev->ops->dev_register(dev);
+ if (err < 0)
+ return err;
}
- return 0;
+ dev->state = SNDRV_DEV_REGISTERED;
}
- snd_printd("device disconnect %p (from %p), not found\n", device_data,
- __builtin_return_address(0));
- return -ENXIO;
+ return 0;
}
/**
@@ -154,33 +155,22 @@ int snd_device_disconnect(struct snd_card *card, void *device_data)
* but it can be called later if any new devices are created after
* invocation of snd_card_register().
*
- * Returns zero if successful, or a negative error code on failure or if the
+ * Return: Zero if successful, or a negative error code on failure or if the
* device not found.
*/
int snd_device_register(struct snd_card *card, void *device_data)
{
- struct list_head *list;
struct snd_device *dev;
- int err;
- snd_assert(card != NULL, return -ENXIO);
- snd_assert(device_data != NULL, return -ENXIO);
- list_for_each(list, &card->devices) {
- dev = snd_device(list);
- if (dev->device_data != device_data)
- continue;
- if (dev->state == SNDRV_DEV_BUILD && dev->ops->dev_register) {
- if ((err = dev->ops->dev_register(dev)) < 0)
- return err;
- dev->state = SNDRV_DEV_REGISTERED;
- return 0;
- }
- snd_printd("snd_device_register busy\n");
- return -EBUSY;
- }
+ if (snd_BUG_ON(!card || !device_data))
+ return -ENXIO;
+ dev = look_for_dev(card, device_data);
+ if (dev)
+ return __snd_device_register(dev);
snd_BUG();
return -ENXIO;
}
+EXPORT_SYMBOL(snd_device_register);
/*
* register all the devices on the card.
@@ -188,18 +178,15 @@ int snd_device_register(struct snd_card *card, void *device_data)
*/
int snd_device_register_all(struct snd_card *card)
{
- struct list_head *list;
struct snd_device *dev;
int err;
- snd_assert(card != NULL, return -ENXIO);
- list_for_each(list, &card->devices) {
- dev = snd_device(list);
- if (dev->state == SNDRV_DEV_BUILD && dev->ops->dev_register) {
- if ((err = dev->ops->dev_register(dev)) < 0)
- return err;
- dev->state = SNDRV_DEV_REGISTERED;
- }
+ if (snd_BUG_ON(!card))
+ return -ENXIO;
+ list_for_each_entry(dev, &card->devices, list) {
+ err = __snd_device_register(dev);
+ if (err < 0)
+ return err;
}
return 0;
}
@@ -211,13 +198,12 @@ int snd_device_register_all(struct snd_card *card)
int snd_device_disconnect_all(struct snd_card *card)
{
struct snd_device *dev;
- struct list_head *list;
int err = 0;
- snd_assert(card != NULL, return -ENXIO);
- list_for_each(list, &card->devices) {
- dev = snd_device(list);
- if (snd_device_disconnect(card, dev->device_data) < 0)
+ if (snd_BUG_ON(!card))
+ return -ENXIO;
+ list_for_each_entry_reverse(dev, &card->devices, list) {
+ if (__snd_device_disconnect(dev) < 0)
err = -ENXIO;
}
return err;
@@ -227,24 +213,12 @@ int snd_device_disconnect_all(struct snd_card *card)
* release all the devices on the card.
* called from init.c
*/
-int snd_device_free_all(struct snd_card *card, snd_device_cmd_t cmd)
+void snd_device_free_all(struct snd_card *card)
{
- struct snd_device *dev;
- struct list_head *list;
- int err;
- unsigned int range_low, range_high;
-
- snd_assert(card != NULL, return -ENXIO);
- range_low = cmd * SNDRV_DEV_TYPE_RANGE_SIZE;
- range_high = range_low + SNDRV_DEV_TYPE_RANGE_SIZE - 1;
- __again:
- list_for_each(list, &card->devices) {
- dev = snd_device(list);
- if (dev->type >= range_low && dev->type <= range_high) {
- if ((err = snd_device_free(card, dev->device_data)) < 0)
- return err;
- goto __again;
- }
- }
- return 0;
+ struct snd_device *dev, *next;
+
+ if (snd_BUG_ON(!card))
+ return;
+ list_for_each_entry_safe_reverse(dev, next, &card->devices, list)
+ __snd_device_free(dev);
}
diff --git a/sound/core/hrtimer.c b/sound/core/hrtimer.c
new file mode 100644
index 00000000000..886be7da989
--- /dev/null
+++ b/sound/core/hrtimer.c
@@ -0,0 +1,166 @@
+/*
+ * ALSA timer back-end using hrtimer
+ * Copyright (C) 2008 Takashi Iwai
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/hrtimer.h>
+#include <sound/core.h>
+#include <sound/timer.h>
+
+MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
+MODULE_DESCRIPTION("ALSA hrtimer backend");
+MODULE_LICENSE("GPL");
+
+MODULE_ALIAS("snd-timer-" __stringify(SNDRV_TIMER_GLOBAL_HRTIMER));
+
+#define NANO_SEC 1000000000UL /* 10^9 in sec */
+static unsigned int resolution;
+
+struct snd_hrtimer {
+ struct snd_timer *timer;
+ struct hrtimer hrt;
+ atomic_t running;
+};
+
+static enum hrtimer_restart snd_hrtimer_callback(struct hrtimer *hrt)
+{
+ struct snd_hrtimer *stime = container_of(hrt, struct snd_hrtimer, hrt);
+ struct snd_timer *t = stime->timer;
+ unsigned long oruns;
+
+ if (!atomic_read(&stime->running))
+ return HRTIMER_NORESTART;
+
+ oruns = hrtimer_forward_now(hrt, ns_to_ktime(t->sticks * resolution));
+ snd_timer_interrupt(stime->timer, t->sticks * oruns);
+
+ if (!atomic_read(&stime->running))
+ return HRTIMER_NORESTART;
+ return HRTIMER_RESTART;
+}
+
+static int snd_hrtimer_open(struct snd_timer *t)
+{
+ struct snd_hrtimer *stime;
+
+ stime = kmalloc(sizeof(*stime), GFP_KERNEL);
+ if (!stime)
+ return -ENOMEM;
+ hrtimer_init(&stime->hrt, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
+ stime->timer = t;
+ stime->hrt.function = snd_hrtimer_callback;
+ atomic_set(&stime->running, 0);
+ t->private_data = stime;
+ return 0;
+}
+
+static int snd_hrtimer_close(struct snd_timer *t)
+{
+ struct snd_hrtimer *stime = t->private_data;
+
+ if (stime) {
+ hrtimer_cancel(&stime->hrt);
+ kfree(stime);
+ t->private_data = NULL;
+ }
+ return 0;
+}
+
+static int snd_hrtimer_start(struct snd_timer *t)
+{
+ struct snd_hrtimer *stime = t->private_data;
+
+ atomic_set(&stime->running, 0);
+ hrtimer_cancel(&stime->hrt);
+ hrtimer_start(&stime->hrt, ns_to_ktime(t->sticks * resolution),
+ HRTIMER_MODE_REL);
+ atomic_set(&stime->running, 1);
+ return 0;
+}
+
+static int snd_hrtimer_stop(struct snd_timer *t)
+{
+ struct snd_hrtimer *stime = t->private_data;
+ atomic_set(&stime->running, 0);
+ return 0;
+}
+
+static struct snd_timer_hardware hrtimer_hw = {
+ .flags = SNDRV_TIMER_HW_AUTO | SNDRV_TIMER_HW_TASKLET,
+ .open = snd_hrtimer_open,
+ .close = snd_hrtimer_close,
+ .start = snd_hrtimer_start,
+ .stop = snd_hrtimer_stop,
+};
+
+/*
+ * entry functions
+ */
+
+static struct snd_timer *mytimer;
+
+static int __init snd_hrtimer_init(void)
+{
+ struct snd_timer *timer;
+ struct timespec tp;
+ int err;
+
+ hrtimer_get_res(CLOCK_MONOTONIC, &tp);
+ if (tp.tv_sec > 0 || !tp.tv_nsec) {
+ pr_err("snd-hrtimer: Invalid resolution %u.%09u",
+ (unsigned)tp.tv_sec, (unsigned)tp.tv_nsec);
+ return -EINVAL;
+ }
+ resolution = tp.tv_nsec;
+
+ /* Create a new timer and set up the fields */
+ err = snd_timer_global_new("hrtimer", SNDRV_TIMER_GLOBAL_HRTIMER,
+ &timer);
+ if (err < 0)
+ return err;
+
+ timer->module = THIS_MODULE;
+ strcpy(timer->name, "HR timer");
+ timer->hw = hrtimer_hw;
+ timer->hw.resolution = resolution;
+ timer->hw.ticks = NANO_SEC / resolution;
+
+ err = snd_timer_global_register(timer);
+ if (err < 0) {
+ snd_timer_global_free(timer);
+ return err;
+ }
+ mytimer = timer; /* remember this */
+
+ return 0;
+}
+
+static void __exit snd_hrtimer_exit(void)
+{
+ if (mytimer) {
+ snd_timer_global_free(mytimer);
+ mytimer = NULL;
+ }
+}
+
+module_init(snd_hrtimer_init);
+module_exit(snd_hrtimer_exit);
diff --git a/sound/core/hwdep.c b/sound/core/hwdep.c
index 618c43be0bc..69459e5f712 100644
--- a/sound/core/hwdep.c
+++ b/sound/core/hwdep.c
@@ -1,6 +1,6 @@
/*
* Hardware dependent layer
- * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
*
*
* This program is free software; you can redistribute it and/or modify
@@ -19,41 +19,38 @@
*
*/
-#include <sound/driver.h>
#include <linux/major.h>
#include <linux/init.h>
-#include <linux/smp_lock.h>
#include <linux/slab.h>
#include <linux/time.h>
+#include <linux/mutex.h>
+#include <linux/module.h>
#include <sound/core.h>
#include <sound/control.h>
#include <sound/minors.h>
#include <sound/hwdep.h>
#include <sound/info.h>
-MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
+MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
MODULE_DESCRIPTION("Hardware dependent layer");
MODULE_LICENSE("GPL");
static LIST_HEAD(snd_hwdep_devices);
-static DECLARE_MUTEX(register_mutex);
+static DEFINE_MUTEX(register_mutex);
static int snd_hwdep_free(struct snd_hwdep *hwdep);
static int snd_hwdep_dev_free(struct snd_device *device);
static int snd_hwdep_dev_register(struct snd_device *device);
-static int snd_hwdep_dev_unregister(struct snd_device *device);
+static int snd_hwdep_dev_disconnect(struct snd_device *device);
static struct snd_hwdep *snd_hwdep_search(struct snd_card *card, int device)
{
- struct list_head *p;
struct snd_hwdep *hwdep;
- list_for_each(p, &snd_hwdep_devices) {
- hwdep = list_entry(p, struct snd_hwdep, list);
+ list_for_each_entry(hwdep, &snd_hwdep_devices, list)
if (hwdep->card == card && hwdep->device == device)
return hwdep;
- }
return NULL;
}
@@ -103,20 +100,23 @@ static int snd_hwdep_open(struct inode *inode, struct file * file)
if (hw == NULL)
return -ENODEV;
- if (!hw->ops.open)
- return -ENXIO;
-
- if (!try_module_get(hw->card->module))
+ if (!try_module_get(hw->card->module)) {
+ snd_card_unref(hw->card);
return -EFAULT;
+ }
init_waitqueue_entry(&wait, current);
add_wait_queue(&hw->open_wait, &wait);
- down(&hw->open_mutex);
+ mutex_lock(&hw->open_mutex);
while (1) {
if (hw->exclusive && hw->used > 0) {
err = -EBUSY;
break;
}
+ if (!hw->ops.open) {
+ err = 0;
+ break;
+ }
err = hw->ops.open(hw, file);
if (err >= 0)
break;
@@ -128,9 +128,13 @@ static int snd_hwdep_open(struct inode *inode, struct file * file)
} else
break;
set_current_state(TASK_INTERRUPTIBLE);
- up(&hw->open_mutex);
+ mutex_unlock(&hw->open_mutex);
schedule();
- down(&hw->open_mutex);
+ mutex_lock(&hw->open_mutex);
+ if (hw->card->shutdown) {
+ err = -ENODEV;
+ break;
+ }
if (signal_pending(current)) {
err = -ERESTARTSYS;
break;
@@ -147,26 +151,29 @@ static int snd_hwdep_open(struct inode *inode, struct file * file)
hw->ops.release(hw, file);
}
}
- up(&hw->open_mutex);
+ mutex_unlock(&hw->open_mutex);
if (err < 0)
module_put(hw->card->module);
+ snd_card_unref(hw->card);
return err;
}
static int snd_hwdep_release(struct inode *inode, struct file * file)
{
- int err = -ENXIO;
+ int err = 0;
struct snd_hwdep *hw = file->private_data;
- down(&hw->open_mutex);
- if (hw->ops.release) {
+ struct module *mod = hw->card->module;
+
+ mutex_lock(&hw->open_mutex);
+ if (hw->ops.release)
err = hw->ops.release(hw, file);
- wake_up(&hw->open_wait);
- }
if (hw->used > 0)
hw->used--;
+ mutex_unlock(&hw->open_mutex);
+ wake_up(&hw->open_wait);
+
snd_card_file_remove(hw->card, file);
- up(&hw->open_mutex);
- module_put(hw->card->module);
+ module_put(mod);
return err;
}
@@ -272,8 +279,15 @@ static int snd_hwdep_control_ioctl(struct snd_card *card,
if (get_user(device, (int __user *)arg))
return -EFAULT;
- down(&register_mutex);
- device = device < 0 ? 0 : device + 1;
+ mutex_lock(&register_mutex);
+
+ if (device < 0)
+ device = 0;
+ else if (device < SNDRV_MINOR_HWDEPS)
+ device++;
+ else
+ device = SNDRV_MINOR_HWDEPS;
+
while (device < SNDRV_MINOR_HWDEPS) {
if (snd_hwdep_search(card, device))
break;
@@ -281,7 +295,7 @@ static int snd_hwdep_control_ioctl(struct snd_card *card,
}
if (device >= SNDRV_MINOR_HWDEPS)
device = -1;
- up(&register_mutex);
+ mutex_unlock(&register_mutex);
if (put_user(device, (int __user *)arg))
return -EFAULT;
return 0;
@@ -294,13 +308,13 @@ static int snd_hwdep_control_ioctl(struct snd_card *card,
if (get_user(device, &info->device))
return -EFAULT;
- down(&register_mutex);
+ mutex_lock(&register_mutex);
hwdep = snd_hwdep_search(card, device);
if (hwdep)
err = snd_hwdep_info(hwdep, info);
else
err = -ENXIO;
- up(&register_mutex);
+ mutex_unlock(&register_mutex);
return err;
}
}
@@ -317,7 +331,7 @@ static int snd_hwdep_control_ioctl(struct snd_card *card,
*/
-static struct file_operations snd_hwdep_f_ops =
+static const struct file_operations snd_hwdep_f_ops =
{
.owner = THIS_MODULE,
.llseek = snd_hwdep_llseek,
@@ -342,7 +356,7 @@ static struct file_operations snd_hwdep_f_ops =
* The callbacks (hwdep->ops) must be set on the returned instance
* after this call manually by the caller.
*
- * Returns zero if successful, or a negative error code on failure.
+ * Return: Zero if successful, or a negative error code on failure.
*/
int snd_hwdep_new(struct snd_card *card, char *id, int device,
struct snd_hwdep **rhwdep)
@@ -352,15 +366,16 @@ int snd_hwdep_new(struct snd_card *card, char *id, int device,
static struct snd_device_ops ops = {
.dev_free = snd_hwdep_dev_free,
.dev_register = snd_hwdep_dev_register,
- .dev_unregister = snd_hwdep_dev_unregister
+ .dev_disconnect = snd_hwdep_dev_disconnect,
};
- snd_assert(rhwdep != NULL, return -EINVAL);
- *rhwdep = NULL;
- snd_assert(card != NULL, return -ENXIO);
+ if (snd_BUG_ON(!card))
+ return -ENXIO;
+ if (rhwdep)
+ *rhwdep = NULL;
hwdep = kzalloc(sizeof(*hwdep), GFP_KERNEL);
if (hwdep == NULL) {
- snd_printk(KERN_ERR "hwdep: cannot allocate\n");
+ dev_err(card->dev, "hwdep: cannot allocate\n");
return -ENOMEM;
}
hwdep->card = card;
@@ -375,14 +390,17 @@ int snd_hwdep_new(struct snd_card *card, char *id, int device,
return err;
}
init_waitqueue_head(&hwdep->open_wait);
- init_MUTEX(&hwdep->open_mutex);
- *rhwdep = hwdep;
+ mutex_init(&hwdep->open_mutex);
+ if (rhwdep)
+ *rhwdep = hwdep;
return 0;
}
+EXPORT_SYMBOL(snd_hwdep_new);
static int snd_hwdep_free(struct snd_hwdep *hwdep)
{
- snd_assert(hwdep != NULL, return -ENXIO);
+ if (!hwdep)
+ return 0;
if (hwdep->private_free)
hwdep->private_free(hwdep);
kfree(hwdep);
@@ -398,64 +416,92 @@ static int snd_hwdep_dev_free(struct snd_device *device)
static int snd_hwdep_dev_register(struct snd_device *device)
{
struct snd_hwdep *hwdep = device->device_data;
+ struct snd_card *card = hwdep->card;
+ struct device *dev;
int err;
char name[32];
- down(&register_mutex);
- if (snd_hwdep_search(hwdep->card, hwdep->device)) {
- up(&register_mutex);
+ mutex_lock(&register_mutex);
+ if (snd_hwdep_search(card, hwdep->device)) {
+ mutex_unlock(&register_mutex);
return -EBUSY;
}
list_add_tail(&hwdep->list, &snd_hwdep_devices);
sprintf(name, "hwC%iD%i", hwdep->card->number, hwdep->device);
- if ((err = snd_register_device(SNDRV_DEVICE_TYPE_HWDEP,
- hwdep->card, hwdep->device,
- &snd_hwdep_f_ops, hwdep, name)) < 0) {
- snd_printk(KERN_ERR "unable to register hardware dependent device %i:%i\n",
- hwdep->card->number, hwdep->device);
+ dev = hwdep->dev;
+ if (!dev)
+ dev = snd_card_get_device_link(hwdep->card);
+ err = snd_register_device_for_dev(SNDRV_DEVICE_TYPE_HWDEP,
+ hwdep->card, hwdep->device,
+ &snd_hwdep_f_ops, hwdep, name, dev);
+ if (err < 0) {
+ dev_err(dev,
+ "unable to register hardware dependent device %i:%i\n",
+ card->number, hwdep->device);
list_del(&hwdep->list);
- up(&register_mutex);
+ mutex_unlock(&register_mutex);
return err;
}
+
+ if (hwdep->groups) {
+ struct device *d = snd_get_device(SNDRV_DEVICE_TYPE_HWDEP,
+ hwdep->card, hwdep->device);
+ if (d) {
+ if (hwdep->private_data)
+ dev_set_drvdata(d, hwdep->private_data);
+ err = sysfs_create_groups(&d->kobj, hwdep->groups);
+ if (err < 0)
+ dev_warn(dev,
+ "hwdep %d:%d: cannot create sysfs groups\n",
+ card->number, hwdep->device);
+ put_device(d);
+ }
+ }
+
#ifdef CONFIG_SND_OSSEMUL
hwdep->ossreg = 0;
if (hwdep->oss_type >= 0) {
if ((hwdep->oss_type == SNDRV_OSS_DEVICE_TYPE_DMFM) && (hwdep->device != 0)) {
- snd_printk (KERN_WARNING "only hwdep device 0 can be registered as OSS direct FM device!\n");
+ dev_warn(dev,
+ "only hwdep device 0 can be registered as OSS direct FM device!\n");
} else {
if (snd_register_oss_device(hwdep->oss_type,
- hwdep->card, hwdep->device,
- &snd_hwdep_f_ops, hwdep,
- hwdep->oss_dev) < 0) {
- snd_printk(KERN_ERR "unable to register OSS compatibility device %i:%i\n",
- hwdep->card->number, hwdep->device);
+ card, hwdep->device,
+ &snd_hwdep_f_ops, hwdep) < 0) {
+ dev_err(dev,
+ "unable to register OSS compatibility device %i:%i\n",
+ card->number, hwdep->device);
} else
hwdep->ossreg = 1;
}
}
#endif
- up(&register_mutex);
+ mutex_unlock(&register_mutex);
return 0;
}
-static int snd_hwdep_dev_unregister(struct snd_device *device)
+static int snd_hwdep_dev_disconnect(struct snd_device *device)
{
struct snd_hwdep *hwdep = device->device_data;
- snd_assert(hwdep != NULL, return -ENXIO);
- down(&register_mutex);
+ if (snd_BUG_ON(!hwdep))
+ return -ENXIO;
+ mutex_lock(&register_mutex);
if (snd_hwdep_search(hwdep->card, hwdep->device) != hwdep) {
- up(&register_mutex);
+ mutex_unlock(&register_mutex);
return -EINVAL;
}
+ mutex_lock(&hwdep->open_mutex);
+ wake_up(&hwdep->open_wait);
#ifdef CONFIG_SND_OSSEMUL
if (hwdep->ossreg)
snd_unregister_oss_device(hwdep->oss_type, hwdep->card, hwdep->device);
#endif
snd_unregister_device(SNDRV_DEVICE_TYPE_HWDEP, hwdep->card, hwdep->device);
- list_del(&hwdep->list);
- up(&register_mutex);
- return snd_hwdep_free(hwdep);
+ list_del_init(&hwdep->list);
+ mutex_unlock(&hwdep->open_mutex);
+ mutex_unlock(&register_mutex);
+ return 0;
}
#ifdef CONFIG_PROC_FS
@@ -466,16 +512,13 @@ static int snd_hwdep_dev_unregister(struct snd_device *device)
static void snd_hwdep_proc_read(struct snd_info_entry *entry,
struct snd_info_buffer *buffer)
{
- struct list_head *p;
struct snd_hwdep *hwdep;
- down(&register_mutex);
- list_for_each(p, &snd_hwdep_devices) {
- hwdep = list_entry(p, struct snd_hwdep, list);
+ mutex_lock(&register_mutex);
+ list_for_each_entry(hwdep, &snd_hwdep_devices, list)
snd_iprintf(buffer, "%02i-%02i: %s\n",
hwdep->card->number, hwdep->device, hwdep->name);
- }
- up(&register_mutex);
+ mutex_unlock(&register_mutex);
}
static struct snd_info_entry *snd_hwdep_proc_entry;
@@ -485,7 +528,6 @@ static void __init snd_hwdep_proc_init(void)
struct snd_info_entry *entry;
if ((entry = snd_info_create_module_entry(THIS_MODULE, "hwdep", NULL)) != NULL) {
- entry->c.text.read_size = PAGE_SIZE;
entry->c.text.read = snd_hwdep_proc_read;
if (snd_info_register(entry) < 0) {
snd_info_free_entry(entry);
@@ -497,7 +539,7 @@ static void __init snd_hwdep_proc_init(void)
static void __exit snd_hwdep_proc_done(void)
{
- snd_info_unregister(snd_hwdep_proc_entry);
+ snd_info_free_entry(snd_hwdep_proc_entry);
}
#else /* !CONFIG_PROC_FS */
#define snd_hwdep_proc_init()
@@ -526,5 +568,3 @@ static void __exit alsa_hwdep_exit(void)
module_init(alsa_hwdep_init)
module_exit(alsa_hwdep_exit)
-
-EXPORT_SYMBOL(snd_hwdep_new);
diff --git a/sound/core/hwdep_compat.c b/sound/core/hwdep_compat.c
index 938f7758096..3827c0ceec8 100644
--- a/sound/core/hwdep_compat.c
+++ b/sound/core/hwdep_compat.c
@@ -33,7 +33,7 @@ struct snd_hwdep_dsp_image32 {
static int snd_hwdep_dsp_load_compat(struct snd_hwdep *hw,
struct snd_hwdep_dsp_image32 __user *src)
{
- struct snd_hwdep_dsp_image *dst;
+ struct snd_hwdep_dsp_image __user *dst;
compat_caddr_t ptr;
u32 val;
diff --git a/sound/core/info.c b/sound/core/info.c
index af123e3bdb2..051d55b0552 100644
--- a/sound/core/info.c
+++ b/sound/core/info.c
@@ -1,6 +1,6 @@
/*
* Information interface for ALSA driver
- * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
*
*
* This program is free software; you can redistribute it and/or modify
@@ -19,18 +19,18 @@
*
*/
-#include <sound/driver.h>
#include <linux/init.h>
-#include <linux/vmalloc.h>
#include <linux/time.h>
-#include <linux/smp_lock.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
#include <linux/string.h>
+#include <linux/module.h>
#include <sound/core.h>
#include <sound/minors.h>
#include <sound/info.h>
-#include <sound/version.h>
+#include <linux/utsname.h>
#include <linux/proc_fs.h>
-#include <linux/devfs_fs_kernel.h>
+#include <linux/mutex.h>
#include <stdarg.h>
/*
@@ -68,7 +68,7 @@ int snd_info_check_reserved_words(const char *str)
return 1;
}
-static DECLARE_MUTEX(info_mutex);
+static DEFINE_MUTEX(info_mutex);
struct snd_info_private_data {
struct snd_info_buffer *rbuffer;
@@ -79,8 +79,25 @@ struct snd_info_private_data {
static int snd_info_version_init(void);
static int snd_info_version_done(void);
+static void snd_info_disconnect(struct snd_info_entry *entry);
+/* resize the proc r/w buffer */
+static int resize_info_buffer(struct snd_info_buffer *buffer,
+ unsigned int nsize)
+{
+ char *nbuf;
+
+ nsize = PAGE_ALIGN(nsize);
+ nbuf = krealloc(buffer->buffer, nsize, GFP_KERNEL | __GFP_ZERO);
+ if (! nbuf)
+ return -ENOMEM;
+
+ buffer->buffer = nbuf;
+ buffer->len = nsize;
+ return 0;
+}
+
/**
* snd_iprintf - printf on the procfs buffer
* @buffer: the procfs buffer
@@ -88,88 +105,96 @@ static int snd_info_version_done(void);
*
* Outputs the string on the procfs buffer just like printf().
*
- * Returns the size of output string.
+ * Return: The size of output string, or a negative error code.
*/
-int snd_iprintf(struct snd_info_buffer *buffer, char *fmt,...)
+int snd_iprintf(struct snd_info_buffer *buffer, const char *fmt, ...)
{
va_list args;
int len, res;
+ int err = 0;
+ might_sleep();
if (buffer->stop || buffer->error)
return 0;
len = buffer->len - buffer->size;
va_start(args, fmt);
- res = vsnprintf(buffer->curr, len, fmt, args);
- va_end(args);
- if (res >= len) {
- buffer->stop = 1;
- return 0;
+ for (;;) {
+ va_list ap;
+ va_copy(ap, args);
+ res = vsnprintf(buffer->buffer + buffer->curr, len, fmt, ap);
+ va_end(ap);
+ if (res < len)
+ break;
+ err = resize_info_buffer(buffer, buffer->len + PAGE_SIZE);
+ if (err < 0)
+ break;
+ len = buffer->len - buffer->size;
}
+ va_end(args);
+
+ if (err < 0)
+ return err;
buffer->curr += res;
buffer->size += res;
return res;
}
+EXPORT_SYMBOL(snd_iprintf);
+
/*
*/
-static struct proc_dir_entry *snd_proc_root = NULL;
-struct snd_info_entry *snd_seq_root = NULL;
+static struct proc_dir_entry *snd_proc_root;
+struct snd_info_entry *snd_seq_root;
+EXPORT_SYMBOL(snd_seq_root);
+
#ifdef CONFIG_SND_OSSEMUL
-struct snd_info_entry *snd_oss_root = NULL;
+struct snd_info_entry *snd_oss_root;
#endif
-static inline void snd_info_entry_prepare(struct proc_dir_entry *de)
-{
- de->owner = THIS_MODULE;
-}
-
-static void snd_remove_proc_entry(struct proc_dir_entry *parent,
- struct proc_dir_entry *de)
-{
- if (de)
- remove_proc_entry(de->name, parent);
-}
-
static loff_t snd_info_entry_llseek(struct file *file, loff_t offset, int orig)
{
struct snd_info_private_data *data;
struct snd_info_entry *entry;
- loff_t ret;
+ loff_t ret = -EINVAL, size;
data = file->private_data;
entry = data->entry;
- lock_kernel();
- switch (entry->content) {
- case SNDRV_INFO_CONTENT_TEXT:
- switch (orig) {
- case 0: /* SEEK_SET */
- file->f_pos = offset;
- ret = file->f_pos;
- goto out;
- case 1: /* SEEK_CUR */
- file->f_pos += offset;
- ret = file->f_pos;
- goto out;
- case 2: /* SEEK_END */
- default:
- ret = -EINVAL;
- goto out;
- }
+ mutex_lock(&entry->access);
+ if (entry->content == SNDRV_INFO_CONTENT_DATA &&
+ entry->c.ops->llseek) {
+ offset = entry->c.ops->llseek(entry,
+ data->file_private_data,
+ file, offset, orig);
+ goto out;
+ }
+ if (entry->content == SNDRV_INFO_CONTENT_DATA)
+ size = entry->size;
+ else
+ size = 0;
+ switch (orig) {
+ case SEEK_SET:
break;
- case SNDRV_INFO_CONTENT_DATA:
- if (entry->c.ops->llseek) {
- ret = entry->c.ops->llseek(entry,
- data->file_private_data,
- file, offset, orig);
+ case SEEK_CUR:
+ offset += file->f_pos;
+ break;
+ case SEEK_END:
+ if (!size)
goto out;
- }
+ offset += size;
break;
+ default:
+ goto out;
}
- ret = -ENXIO;
-out:
- unlock_kernel();
+ if (offset < 0)
+ goto out;
+ if (size && offset > size)
+ offset = size;
+ file->f_pos = offset;
+ ret = offset;
+ out:
+ mutex_unlock(&entry->access);
return ret;
}
@@ -183,7 +208,8 @@ static ssize_t snd_info_entry_read(struct file *file, char __user *buffer,
loff_t pos;
data = file->private_data;
- snd_assert(data != NULL, return -ENXIO);
+ if (snd_BUG_ON(!data))
+ return -ENXIO;
pos = *offset;
if (pos < 0 || (long) pos != pos || (ssize_t) count < 0)
return -EIO;
@@ -203,10 +229,15 @@ static ssize_t snd_info_entry_read(struct file *file, char __user *buffer,
return -EFAULT;
break;
case SNDRV_INFO_CONTENT_DATA:
- if (entry->c.ops->read)
+ if (pos >= entry->size)
+ return 0;
+ if (entry->c.ops->read) {
+ size = entry->size - pos;
+ size = min(count, size);
size = entry->c.ops->read(entry,
data->file_private_data,
- file, buffer, count, pos);
+ file, buffer, size, pos);
+ }
break;
}
if ((ssize_t) size > 0)
@@ -220,11 +251,12 @@ static ssize_t snd_info_entry_write(struct file *file, const char __user *buffer
struct snd_info_private_data *data;
struct snd_info_entry *entry;
struct snd_info_buffer *buf;
- size_t size = 0;
+ ssize_t size = 0;
loff_t pos;
data = file->private_data;
- snd_assert(data != NULL, return -ENXIO);
+ if (snd_BUG_ON(!data))
+ return -ENXIO;
entry = data->entry;
pos = *offset;
if (pos < 0 || (long) pos != pos || (ssize_t) count < 0)
@@ -236,20 +268,29 @@ static ssize_t snd_info_entry_write(struct file *file, const char __user *buffer
buf = data->wbuffer;
if (buf == NULL)
return -EIO;
- if (pos >= buf->len)
- return -ENOMEM;
- size = buf->len - pos;
- size = min(count, size);
- if (copy_from_user(buf->buffer + pos, buffer, size))
+ mutex_lock(&entry->access);
+ if (pos + count >= buf->len) {
+ if (resize_info_buffer(buf, pos + count)) {
+ mutex_unlock(&entry->access);
+ return -ENOMEM;
+ }
+ }
+ if (copy_from_user(buf->buffer + pos, buffer, count)) {
+ mutex_unlock(&entry->access);
return -EFAULT;
- if ((long)buf->size < pos + size)
- buf->size = pos + size;
+ }
+ buf->size = pos + count;
+ mutex_unlock(&entry->access);
+ size = count;
break;
case SNDRV_INFO_CONTENT_DATA:
- if (entry->c.ops->write)
+ if (entry->c.ops->write && count > 0) {
+ size_t maxsize = entry->size - pos;
+ count = min(count, maxsize);
size = entry->c.ops->write(entry,
data->file_private_data,
file, buffer, count, pos);
+ }
break;
}
if ((ssize_t) size > 0)
@@ -262,14 +303,12 @@ static int snd_info_entry_open(struct inode *inode, struct file *file)
struct snd_info_entry *entry;
struct snd_info_private_data *data;
struct snd_info_buffer *buffer;
- struct proc_dir_entry *p;
int mode, err;
- down(&info_mutex);
- p = PDE(inode);
- entry = p == NULL ? NULL : (struct snd_info_entry *)p->data;
- if (entry == NULL || entry->disconnected) {
- up(&info_mutex);
+ mutex_lock(&info_mutex);
+ entry = PDE_DATA(inode);
+ if (entry == NULL || ! entry->p) {
+ mutex_unlock(&info_mutex);
return -ENODEV;
}
if (!try_module_get(entry->module)) {
@@ -278,18 +317,14 @@ static int snd_info_entry_open(struct inode *inode, struct file *file)
}
mode = file->f_flags & O_ACCMODE;
if (mode == O_RDONLY || mode == O_RDWR) {
- if ((entry->content == SNDRV_INFO_CONTENT_TEXT &&
- !entry->c.text.read_size) ||
- (entry->content == SNDRV_INFO_CONTENT_DATA &&
+ if ((entry->content == SNDRV_INFO_CONTENT_DATA &&
entry->c.ops->read == NULL)) {
err = -ENODEV;
goto __error;
}
}
if (mode == O_WRONLY || mode == O_RDWR) {
- if ((entry->content == SNDRV_INFO_CONTENT_TEXT &&
- !entry->c.text.write_size) ||
- (entry->content == SNDRV_INFO_CONTENT_DATA &&
+ if ((entry->content == SNDRV_INFO_CONTENT_DATA &&
entry->c.ops->write == NULL)) {
err = -ENODEV;
goto __error;
@@ -305,49 +340,23 @@ static int snd_info_entry_open(struct inode *inode, struct file *file)
case SNDRV_INFO_CONTENT_TEXT:
if (mode == O_RDONLY || mode == O_RDWR) {
buffer = kzalloc(sizeof(*buffer), GFP_KERNEL);
- if (buffer == NULL) {
- kfree(data);
- err = -ENOMEM;
- goto __error;
- }
- buffer->len = (entry->c.text.read_size +
- (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
- buffer->buffer = vmalloc(buffer->len);
- if (buffer->buffer == NULL) {
- kfree(buffer);
- kfree(data);
- err = -ENOMEM;
- goto __error;
- }
- buffer->curr = buffer->buffer;
+ if (buffer == NULL)
+ goto __nomem;
data->rbuffer = buffer;
+ buffer->len = PAGE_SIZE;
+ buffer->buffer = kzalloc(buffer->len, GFP_KERNEL);
+ if (buffer->buffer == NULL)
+ goto __nomem;
}
if (mode == O_WRONLY || mode == O_RDWR) {
buffer = kzalloc(sizeof(*buffer), GFP_KERNEL);
- if (buffer == NULL) {
- if (mode == O_RDWR) {
- vfree(data->rbuffer->buffer);
- kfree(data->rbuffer);
- }
- kfree(data);
- err = -ENOMEM;
- goto __error;
- }
- buffer->len = (entry->c.text.write_size +
- (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
- buffer->buffer = vmalloc(buffer->len);
- if (buffer->buffer == NULL) {
- if (mode == O_RDWR) {
- vfree(data->rbuffer->buffer);
- kfree(data->rbuffer);
- }
- kfree(buffer);
- kfree(data);
- err = -ENOMEM;
- goto __error;
- }
- buffer->curr = buffer->buffer;
+ if (buffer == NULL)
+ goto __nomem;
data->wbuffer = buffer;
+ buffer->len = PAGE_SIZE;
+ buffer->buffer = kmalloc(buffer->len, GFP_KERNEL);
+ if (buffer->buffer == NULL)
+ goto __nomem;
}
break;
case SNDRV_INFO_CONTENT_DATA: /* data */
@@ -361,21 +370,32 @@ static int snd_info_entry_open(struct inode *inode, struct file *file)
break;
}
file->private_data = data;
- up(&info_mutex);
+ mutex_unlock(&info_mutex);
if (entry->content == SNDRV_INFO_CONTENT_TEXT &&
(mode == O_RDONLY || mode == O_RDWR)) {
if (entry->c.text.read) {
- down(&entry->access);
+ mutex_lock(&entry->access);
entry->c.text.read(entry, data->rbuffer);
- up(&entry->access);
+ mutex_unlock(&entry->access);
}
}
return 0;
+ __nomem:
+ if (data->rbuffer) {
+ kfree(data->rbuffer->buffer);
+ kfree(data->rbuffer);
+ }
+ if (data->wbuffer) {
+ kfree(data->wbuffer->buffer);
+ kfree(data->wbuffer);
+ }
+ kfree(data);
+ err = -ENOMEM;
__error:
module_put(entry->module);
__error1:
- up(&info_mutex);
+ mutex_unlock(&info_mutex);
return err;
}
@@ -390,20 +410,25 @@ static int snd_info_entry_release(struct inode *inode, struct file *file)
entry = data->entry;
switch (entry->content) {
case SNDRV_INFO_CONTENT_TEXT:
- if (mode == O_RDONLY || mode == O_RDWR) {
- vfree(data->rbuffer->buffer);
+ if (data->rbuffer) {
+ kfree(data->rbuffer->buffer);
kfree(data->rbuffer);
}
- if (mode == O_WRONLY || mode == O_RDWR) {
+ if (data->wbuffer) {
if (entry->c.text.write) {
entry->c.text.write(entry, data->wbuffer);
if (data->wbuffer->error) {
- snd_printk(KERN_WARNING "data write error to %s (%i)\n",
- entry->name,
- data->wbuffer->error);
+ if (entry->card)
+ dev_warn(entry->card->dev, "info: data write error to %s (%i)\n",
+ entry->name,
+ data->wbuffer->error);
+ else
+ pr_warn("ALSA: info: data write error to %s (%i)\n",
+ entry->name,
+ data->wbuffer->error);
}
}
- vfree(data->wbuffer->buffer);
+ kfree(data->wbuffer->buffer);
kfree(data->wbuffer);
}
break;
@@ -467,7 +492,7 @@ static long snd_info_entry_ioctl(struct file *file, unsigned int cmd,
static int snd_info_entry_mmap(struct file *file, struct vm_area_struct *vma)
{
- struct inode *inode = file->f_dentry->d_inode;
+ struct inode *inode = file_inode(file);
struct snd_info_private_data *data;
struct snd_info_entry *entry;
@@ -486,7 +511,7 @@ static int snd_info_entry_mmap(struct file *file, struct vm_area_struct *vma)
return -ENXIO;
}
-static struct file_operations snd_info_entry_operations =
+static const struct file_operations snd_info_entry_operations =
{
.owner = THIS_MODULE,
.llseek = snd_info_entry_llseek,
@@ -499,32 +524,11 @@ static struct file_operations snd_info_entry_operations =
.release = snd_info_entry_release,
};
-/**
- * snd_create_proc_entry - create a procfs entry
- * @name: the name of the proc file
- * @mode: the file permission bits, S_Ixxx
- * @parent: the parent proc-directory entry
- *
- * Creates a new proc file entry with the given name and permission
- * on the given directory.
- *
- * Returns the pointer of new instance or NULL on failure.
- */
-static struct proc_dir_entry *snd_create_proc_entry(const char *name, mode_t mode,
- struct proc_dir_entry *parent)
-{
- struct proc_dir_entry *p;
- p = create_proc_entry(name, mode, parent);
- if (p)
- snd_info_entry_prepare(p);
- return p;
-}
-
int __init snd_info_init(void)
{
struct proc_dir_entry *p;
- p = snd_create_proc_entry("asound", S_IFDIR | S_IRUGO | S_IXUGO, &proc_root);
+ p = proc_mkdir("asound", NULL);
if (p == NULL)
return -ENOMEM;
snd_proc_root = p;
@@ -541,7 +545,7 @@ int __init snd_info_init(void)
snd_oss_root = entry;
}
#endif
-#if defined(CONFIG_SND_SEQUENCER) || defined(CONFIG_SND_SEQUENCER_MODULE)
+#if IS_ENABLED(CONFIG_SND_SEQUENCER)
{
struct snd_info_entry *entry;
if ((entry = snd_info_create_module_entry(THIS_MODULE, "seq", NULL)) == NULL)
@@ -568,13 +572,13 @@ int __exit snd_info_done(void)
snd_minor_info_done();
snd_info_version_done();
if (snd_proc_root) {
-#if defined(CONFIG_SND_SEQUENCER) || defined(CONFIG_SND_SEQUENCER_MODULE)
- snd_info_unregister(snd_seq_root);
+#if IS_ENABLED(CONFIG_SND_SEQUENCER)
+ snd_info_free_entry(snd_seq_root);
#endif
#ifdef CONFIG_SND_OSSEMUL
- snd_info_unregister(snd_oss_root);
+ snd_info_free_entry(snd_oss_root);
#endif
- snd_remove_proc_entry(&proc_root, snd_proc_root);
+ proc_remove(snd_proc_root);
}
return 0;
}
@@ -593,7 +597,8 @@ int snd_info_card_create(struct snd_card *card)
char str[8];
struct snd_info_entry *entry;
- snd_assert(card != NULL, return -ENXIO);
+ if (snd_BUG_ON(!card))
+ return -ENXIO;
sprintf(str, "card%i", card->number);
if ((entry = snd_info_create_module_entry(card->module, str, NULL)) == NULL)
@@ -615,7 +620,8 @@ int snd_info_card_register(struct snd_card *card)
{
struct proc_dir_entry *p;
- snd_assert(card != NULL, return -ENXIO);
+ if (snd_BUG_ON(!card))
+ return -ENXIO;
if (!strcmp(card->id, card->proc_root->name))
return 0;
@@ -628,20 +634,48 @@ int snd_info_card_register(struct snd_card *card)
}
/*
- * de-register the card proc file
- * called from init.c
+ * called on card->id change
*/
-int snd_info_card_free(struct snd_card *card)
+void snd_info_card_id_change(struct snd_card *card)
{
- snd_assert(card != NULL, return -ENXIO);
+ mutex_lock(&info_mutex);
if (card->proc_root_link) {
- snd_remove_proc_entry(snd_proc_root, card->proc_root_link);
+ proc_remove(card->proc_root_link);
card->proc_root_link = NULL;
}
- if (card->proc_root) {
- snd_info_unregister(card->proc_root);
- card->proc_root = NULL;
- }
+ if (strcmp(card->id, card->proc_root->name))
+ card->proc_root_link = proc_symlink(card->id,
+ snd_proc_root,
+ card->proc_root->name);
+ mutex_unlock(&info_mutex);
+}
+
+/*
+ * de-register the card proc file
+ * called from init.c
+ */
+void snd_info_card_disconnect(struct snd_card *card)
+{
+ if (!card)
+ return;
+ mutex_lock(&info_mutex);
+ proc_remove(card->proc_root_link);
+ card->proc_root_link = NULL;
+ if (card->proc_root)
+ snd_info_disconnect(card->proc_root);
+ mutex_unlock(&info_mutex);
+}
+
+/*
+ * release the card proc file resources
+ * called from init.c
+ */
+int snd_info_card_free(struct snd_card *card)
+{
+ if (!card)
+ return 0;
+ snd_info_free_entry(card->proc_root);
+ card->proc_root = NULL;
return 0;
}
@@ -654,38 +688,33 @@ int snd_info_card_free(struct snd_card *card)
*
* Reads one line from the buffer and stores the string.
*
- * Returns zero if successful, or 1 if error or EOF.
+ * Return: Zero if successful, or 1 if error or EOF.
*/
int snd_info_get_line(struct snd_info_buffer *buffer, char *line, int len)
{
int c = -1;
+ if (snd_BUG_ON(!buffer || !buffer->buffer))
+ return 1;
if (len <= 0 || buffer->stop || buffer->error)
return 1;
- while (--len > 0) {
- c = *buffer->curr++;
- if (c == '\n') {
- if ((buffer->curr - buffer->buffer) >= (long)buffer->size) {
- buffer->stop = 1;
- }
- break;
- }
- *line++ = c;
- if ((buffer->curr - buffer->buffer) >= (long)buffer->size) {
+ while (!buffer->stop) {
+ c = buffer->buffer[buffer->curr++];
+ if (buffer->curr >= buffer->size)
buffer->stop = 1;
+ if (c == '\n')
break;
- }
- }
- while (c != '\n' && !buffer->stop) {
- c = *buffer->curr++;
- if ((buffer->curr - buffer->buffer) >= (long)buffer->size) {
- buffer->stop = 1;
+ if (len) {
+ len--;
+ *line++ = c;
}
}
*line = '\0';
return 0;
}
+EXPORT_SYMBOL(snd_info_get_line);
+
/**
* snd_info_get_str - parse a string token
* @dest: the buffer to store the string token
@@ -695,10 +724,10 @@ int snd_info_get_line(struct snd_info_buffer *buffer, char *line, int len)
* Parses the original string and copy a token to the given
* string buffer.
*
- * Returns the updated pointer of the original string so that
+ * Return: The updated pointer of the original string so that
* it can be used for the next call.
*/
-char *snd_info_get_str(char *dest, char *src, int len)
+const char *snd_info_get_str(char *dest, const char *src, int len)
{
int c;
@@ -722,6 +751,8 @@ char *snd_info_get_str(char *dest, char *src, int len)
return src;
}
+EXPORT_SYMBOL(snd_info_get_str);
+
/**
* snd_info_create_entry - create an info entry
* @name: the proc file name
@@ -732,7 +763,7 @@ char *snd_info_get_str(char *dest, char *src, int len)
* Usually called from other functions such as
* snd_info_create_card_entry().
*
- * Returns the pointer of the new instance, or NULL on failure.
+ * Return: The pointer of the new instance, or %NULL on failure.
*/
static struct snd_info_entry *snd_info_create_entry(const char *name)
{
@@ -747,7 +778,9 @@ static struct snd_info_entry *snd_info_create_entry(const char *name)
}
entry->mode = S_IFREG | S_IRUGO;
entry->content = SNDRV_INFO_CONTENT_TEXT;
- init_MUTEX(&entry->access);
+ mutex_init(&entry->access);
+ INIT_LIST_HEAD(&entry->children);
+ INIT_LIST_HEAD(&entry->list);
return entry;
}
@@ -759,7 +792,7 @@ static struct snd_info_entry *snd_info_create_entry(const char *name)
*
* Creates a new info entry and assigns it to the given module.
*
- * Returns the pointer of the new instance, or NULL on failure.
+ * Return: The pointer of the new instance, or %NULL on failure.
*/
struct snd_info_entry *snd_info_create_module_entry(struct module * module,
const char *name,
@@ -773,6 +806,8 @@ struct snd_info_entry *snd_info_create_module_entry(struct module * module,
return entry;
}
+EXPORT_SYMBOL(snd_info_create_module_entry);
+
/**
* snd_info_create_card_entry - create an info entry for the given card
* @card: the card instance
@@ -781,7 +816,7 @@ struct snd_info_entry *snd_info_create_module_entry(struct module * module,
*
* Creates a new info entry and assigns it to the given card.
*
- * Returns the pointer of the new instance, or NULL on failure.
+ * Return: The pointer of the new instance, or %NULL on failure.
*/
struct snd_info_entry *snd_info_create_card_entry(struct snd_card *card,
const char *name,
@@ -796,30 +831,37 @@ struct snd_info_entry *snd_info_create_card_entry(struct snd_card *card,
return entry;
}
-static int snd_info_dev_free_entry(struct snd_device *device)
-{
- struct snd_info_entry *entry = device->device_data;
- snd_info_free_entry(entry);
- return 0;
-}
+EXPORT_SYMBOL(snd_info_create_card_entry);
-static int snd_info_dev_register_entry(struct snd_device *device)
+static void snd_info_disconnect(struct snd_info_entry *entry)
{
- struct snd_info_entry *entry = device->device_data;
- return snd_info_register(entry);
+ struct list_head *p, *n;
+ struct proc_dir_entry *root;
+
+ list_for_each_safe(p, n, &entry->children) {
+ snd_info_disconnect(list_entry(p, struct snd_info_entry, list));
+ }
+
+ if (! entry->p)
+ return;
+ list_del_init(&entry->list);
+ root = entry->parent == NULL ? snd_proc_root : entry->parent->p;
+ snd_BUG_ON(!root);
+ proc_remove(entry->p);
+ entry->p = NULL;
}
-static int snd_info_dev_disconnect_entry(struct snd_device *device)
+static int snd_info_dev_free_entry(struct snd_device *device)
{
struct snd_info_entry *entry = device->device_data;
- entry->disconnected = 1;
+ snd_info_free_entry(entry);
return 0;
}
-static int snd_info_dev_unregister_entry(struct snd_device *device)
+static int snd_info_dev_register_entry(struct snd_device *device)
{
struct snd_info_entry *entry = device->device_data;
- return snd_info_unregister(entry);
+ return snd_info_register(entry);
}
/**
@@ -840,7 +882,7 @@ static int snd_info_dev_unregister_entry(struct snd_device *device)
* For releasing this entry, use snd_device_free() instead of
* snd_info_free_entry().
*
- * Returns zero if successful, or a negative error code on failure.
+ * Return: Zero if successful, or a negative error code on failure.
*/
int snd_card_proc_new(struct snd_card *card, const char *name,
struct snd_info_entry **entryp)
@@ -848,8 +890,7 @@ int snd_card_proc_new(struct snd_card *card, const char *name,
static struct snd_device_ops ops = {
.dev_free = snd_info_dev_free_entry,
.dev_register = snd_info_dev_register_entry,
- .dev_disconnect = snd_info_dev_disconnect_entry,
- .dev_unregister = snd_info_dev_unregister_entry
+ /* disconnect is done via snd_info_card_disconnect() */
};
struct snd_info_entry *entry;
int err;
@@ -866,6 +907,8 @@ int snd_card_proc_new(struct snd_card *card, const char *name,
return 0;
}
+EXPORT_SYMBOL(snd_card_proc_new);
+
/**
* snd_info_free_entry - release the info entry
* @entry: the info entry
@@ -876,78 +919,70 @@ void snd_info_free_entry(struct snd_info_entry * entry)
{
if (entry == NULL)
return;
+ if (entry->p) {
+ mutex_lock(&info_mutex);
+ snd_info_disconnect(entry);
+ mutex_unlock(&info_mutex);
+ }
kfree(entry->name);
if (entry->private_free)
entry->private_free(entry);
kfree(entry);
}
+EXPORT_SYMBOL(snd_info_free_entry);
+
/**
* snd_info_register - register the info entry
* @entry: the info entry
*
* Registers the proc info entry.
*
- * Returns zero if successful, or a negative error code on failure.
+ * Return: Zero if successful, or a negative error code on failure.
*/
int snd_info_register(struct snd_info_entry * entry)
{
struct proc_dir_entry *root, *p = NULL;
- snd_assert(entry != NULL, return -ENXIO);
+ if (snd_BUG_ON(!entry))
+ return -ENXIO;
root = entry->parent == NULL ? snd_proc_root : entry->parent->p;
- down(&info_mutex);
- p = snd_create_proc_entry(entry->name, entry->mode, root);
- if (!p) {
- up(&info_mutex);
- return -ENOMEM;
+ mutex_lock(&info_mutex);
+ if (S_ISDIR(entry->mode)) {
+ p = proc_mkdir_mode(entry->name, entry->mode, root);
+ if (!p) {
+ mutex_unlock(&info_mutex);
+ return -ENOMEM;
+ }
+ } else {
+ p = proc_create_data(entry->name, entry->mode, root,
+ &snd_info_entry_operations, entry);
+ if (!p) {
+ mutex_unlock(&info_mutex);
+ return -ENOMEM;
+ }
+ proc_set_size(p, entry->size);
}
- p->owner = entry->module;
- if (!S_ISDIR(entry->mode))
- p->proc_fops = &snd_info_entry_operations;
- p->size = entry->size;
- p->data = entry;
entry->p = p;
- up(&info_mutex);
+ if (entry->parent)
+ list_add_tail(&entry->list, &entry->parent->children);
+ mutex_unlock(&info_mutex);
return 0;
}
-/**
- * snd_info_unregister - de-register the info entry
- * @entry: the info entry
- *
- * De-registers the info entry and releases the instance.
- *
- * Returns zero if successful, or a negative error code on failure.
- */
-int snd_info_unregister(struct snd_info_entry * entry)
-{
- struct proc_dir_entry *root;
-
- if (! entry)
- return 0;
- snd_assert(entry->p != NULL, return -ENXIO);
- root = entry->parent == NULL ? snd_proc_root : entry->parent->p;
- snd_assert(root, return -ENXIO);
- down(&info_mutex);
- snd_remove_proc_entry(root, entry->p);
- up(&info_mutex);
- snd_info_free_entry(entry);
- return 0;
-}
+EXPORT_SYMBOL(snd_info_register);
/*
*/
-static struct snd_info_entry *snd_info_version_entry = NULL;
+static struct snd_info_entry *snd_info_version_entry;
static void snd_info_version_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
{
snd_iprintf(buffer,
- "Advanced Linux Sound Architecture Driver Version "
- CONFIG_SND_VERSION CONFIG_SND_DATE ".\n"
- );
+ "Advanced Linux Sound Architecture Driver Version k%s.\n",
+ init_utsname()->release);
}
static int __init snd_info_version_init(void)
@@ -957,7 +992,6 @@ static int __init snd_info_version_init(void)
entry = snd_info_create_module_entry(THIS_MODULE, "version", NULL);
if (entry == NULL)
return -ENOMEM;
- entry->c.text.read_size = 256;
entry->c.text.read = snd_info_version_read;
if (snd_info_register(entry) < 0) {
snd_info_free_entry(entry);
@@ -969,8 +1003,7 @@ static int __init snd_info_version_init(void)
static int __exit snd_info_version_done(void)
{
- if (snd_info_version_entry)
- snd_info_unregister(snd_info_version_entry);
+ snd_info_free_entry(snd_info_version_entry);
return 0;
}
diff --git a/sound/core/info_oss.c b/sound/core/info_oss.c
index 820f4772e44..83c29dbff9c 100644
--- a/sound/core/info_oss.c
+++ b/sound/core/info_oss.c
@@ -1,6 +1,6 @@
/*
* Information interface for ALSA driver
- * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
*
*
* This program is free software; you can redistribute it and/or modify
@@ -19,15 +19,15 @@
*
*/
-#include <sound/driver.h>
#include <linux/slab.h>
#include <linux/time.h>
#include <linux/string.h>
+#include <linux/export.h>
#include <sound/core.h>
#include <sound/minors.h>
#include <sound/info.h>
-#include <sound/version.h>
#include <linux/utsname.h>
+#include <linux/mutex.h>
#if defined(CONFIG_SND_OSSEMUL) && defined(CONFIG_PROC_FS)
@@ -35,7 +35,7 @@
* OSS compatible part
*/
-static DECLARE_MUTEX(strings);
+static DEFINE_MUTEX(strings);
static char *snd_sndstat_strings[SNDRV_CARDS][SNDRV_OSS_INFO_DEV_COUNT];
static struct snd_info_entry *snd_sndstat_proc_entry;
@@ -43,9 +43,11 @@ int snd_oss_info_register(int dev, int num, char *string)
{
char *x;
- snd_assert(dev >= 0 && dev < SNDRV_OSS_INFO_DEV_COUNT, return -ENXIO);
- snd_assert(num >= 0 && num < SNDRV_CARDS, return -ENXIO);
- down(&strings);
+ if (snd_BUG_ON(dev < 0 || dev >= SNDRV_OSS_INFO_DEV_COUNT))
+ return -ENXIO;
+ if (snd_BUG_ON(num < 0 || num >= SNDRV_CARDS))
+ return -ENXIO;
+ mutex_lock(&strings);
if (string == NULL) {
if ((x = snd_sndstat_strings[num][dev]) != NULL) {
kfree(x);
@@ -54,16 +56,16 @@ int snd_oss_info_register(int dev, int num, char *string)
} else {
x = kstrdup(string, GFP_KERNEL);
if (x == NULL) {
- up(&strings);
+ mutex_unlock(&strings);
return -ENOMEM;
}
}
snd_sndstat_strings[num][dev] = x;
- up(&strings);
+ mutex_unlock(&strings);
return 0;
}
-extern void snd_card_info_read_oss(struct snd_info_buffer *buffer);
+EXPORT_SYMBOL(snd_oss_info_register);
static int snd_sndstat_show_strings(struct snd_info_buffer *buf, char *id, int dev)
{
@@ -71,7 +73,7 @@ static int snd_sndstat_show_strings(struct snd_info_buffer *buf, char *id, int d
char *str;
snd_iprintf(buf, "\n%s:", id);
- down(&strings);
+ mutex_lock(&strings);
for (idx = 0; idx < SNDRV_CARDS; idx++) {
str = snd_sndstat_strings[idx][dev];
if (str) {
@@ -82,7 +84,7 @@ static int snd_sndstat_show_strings(struct snd_info_buffer *buf, char *id, int d
snd_iprintf(buf, "%i: %s\n", idx, str);
}
}
- up(&strings);
+ mutex_unlock(&strings);
if (ok < 0)
snd_iprintf(buf, " NOT ENABLED IN CONFIG\n");
return ok;
@@ -91,13 +93,13 @@ static int snd_sndstat_show_strings(struct snd_info_buffer *buf, char *id, int d
static void snd_sndstat_proc_read(struct snd_info_entry *entry,
struct snd_info_buffer *buffer)
{
- snd_iprintf(buffer, "Sound Driver:3.8.1a-980706 (ALSA v" CONFIG_SND_VERSION " emulation code)\n");
+ snd_iprintf(buffer, "Sound Driver:3.8.1a-980706 (ALSA emulation code)\n");
snd_iprintf(buffer, "Kernel: %s %s %s %s %s\n",
- system_utsname.sysname,
- system_utsname.nodename,
- system_utsname.release,
- system_utsname.version,
- system_utsname.machine);
+ init_utsname()->sysname,
+ init_utsname()->nodename,
+ init_utsname()->release,
+ init_utsname()->version,
+ init_utsname()->machine);
snd_iprintf(buffer, "Config options: 0\n");
snd_iprintf(buffer, "\nInstalled drivers: \n");
snd_iprintf(buffer, "Type 10: ALSA emulation\n");
@@ -116,7 +118,6 @@ int snd_info_minor_register(void)
memset(snd_sndstat_strings, 0, sizeof(snd_sndstat_strings));
if ((entry = snd_info_create_module_entry(THIS_MODULE, "sndstat", snd_oss_root)) != NULL) {
- entry->c.text.read_size = 2048;
entry->c.text.read = snd_sndstat_proc_read;
if (snd_info_register(entry) < 0) {
snd_info_free_entry(entry);
@@ -129,10 +130,8 @@ int snd_info_minor_register(void)
int snd_info_minor_unregister(void)
{
- if (snd_sndstat_proc_entry) {
- snd_info_unregister(snd_sndstat_proc_entry);
- snd_sndstat_proc_entry = NULL;
- }
+ snd_info_free_entry(snd_sndstat_proc_entry);
+ snd_sndstat_proc_entry = NULL;
return 0;
}
diff --git a/sound/core/init.c b/sound/core/init.c
index 75816688607..7bdfd19e24a 100644
--- a/sound/core/init.c
+++ b/sound/core/init.c
@@ -1,6 +1,6 @@
/*
* Initialization routines
- * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
*
*
* This program is free software; you can redistribute it and/or modify
@@ -19,31 +19,85 @@
*
*/
-#include <sound/driver.h>
#include <linux/init.h>
#include <linux/sched.h>
+#include <linux/module.h>
+#include <linux/device.h>
#include <linux/file.h>
#include <linux/slab.h>
#include <linux/time.h>
#include <linux/ctype.h>
-#include <linux/pci.h>
#include <linux/pm.h>
+#include <linux/completion.h>
#include <sound/core.h>
#include <sound/control.h>
#include <sound/info.h>
-struct snd_shutdown_f_ops {
- struct file_operations f_ops;
- struct snd_shutdown_f_ops *next;
+/* monitor files for graceful shutdown (hotplug) */
+struct snd_monitor_file {
+ struct file *file;
+ const struct file_operations *disconnected_f_op;
+ struct list_head shutdown_list; /* still need to shutdown */
+ struct list_head list; /* link of monitor files */
};
-unsigned int snd_cards_lock = 0; /* locked for registering/using */
-struct snd_card *snd_cards[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = NULL};
-DEFINE_RWLOCK(snd_card_rwlock);
+static DEFINE_SPINLOCK(shutdown_lock);
+static LIST_HEAD(shutdown_files);
+
+static const struct file_operations snd_shutdown_f_ops;
+
+/* locked for registering/using */
+static DECLARE_BITMAP(snd_cards_lock, SNDRV_CARDS);
+struct snd_card *snd_cards[SNDRV_CARDS];
+EXPORT_SYMBOL(snd_cards);
+
+static DEFINE_MUTEX(snd_card_mutex);
+
+static char *slots[SNDRV_CARDS];
+module_param_array(slots, charp, NULL, 0444);
+MODULE_PARM_DESC(slots, "Module names assigned to the slots.");
+
+/* return non-zero if the given index is reserved for the given
+ * module via slots option
+ */
+static int module_slot_match(struct module *module, int idx)
+{
+ int match = 1;
+#ifdef MODULE
+ const char *s1, *s2;
+
+ if (!module || !*module->name || !slots[idx])
+ return 0;
+
+ s1 = module->name;
+ s2 = slots[idx];
+ if (*s2 == '!') {
+ match = 0; /* negative match */
+ s2++;
+ }
+ /* compare module name strings
+ * hyphens are handled as equivalent with underscore
+ */
+ for (;;) {
+ char c1 = *s1++;
+ char c2 = *s2++;
+ if (c1 == '-')
+ c1 = '_';
+ if (c2 == '-')
+ c2 = '_';
+ if (c1 != c2)
+ return !match;
+ if (!c1)
+ break;
+ }
+#endif /* MODULE */
+ return match;
+}
-#if defined(CONFIG_SND_MIXER_OSS) || defined(CONFIG_SND_MIXER_OSS_MODULE)
+#if IS_ENABLED(CONFIG_SND_MIXER_OSS)
int (*snd_mixer_oss_notify_callback)(struct snd_card *card, int free_flag);
+EXPORT_SYMBOL(snd_mixer_oss_notify_callback);
#endif
#ifdef CONFIG_PROC_FS
@@ -59,14 +113,13 @@ static inline int init_info_for_card(struct snd_card *card)
struct snd_info_entry *entry;
if ((err = snd_info_card_register(card)) < 0) {
- snd_printd("unable to create card info\n");
+ dev_dbg(card->dev, "unable to create card info\n");
return err;
}
if ((entry = snd_info_create_card_entry(card, "id", card->proc_root)) == NULL) {
- snd_printd("unable to create card entry\n");
+ dev_dbg(card->dev, "unable to create card entry\n");
return err;
}
- entry->c.text.read_size = PAGE_SIZE;
entry->c.text.read = snd_card_id_read;
if (snd_info_register(entry) < 0) {
snd_info_free_entry(entry);
@@ -79,94 +132,197 @@ static inline int init_info_for_card(struct snd_card *card)
#define init_info_for_card(card)
#endif
-static void snd_card_free_thread(void * __card);
+static int check_empty_slot(struct module *module, int slot)
+{
+ return !slots[slot] || !*slots[slot];
+}
+
+/* return an empty slot number (>= 0) found in the given bitmask @mask.
+ * @mask == -1 == 0xffffffff means: take any free slot up to 32
+ * when no slot is available, return the original @mask as is.
+ */
+static int get_slot_from_bitmask(int mask, int (*check)(struct module *, int),
+ struct module *module)
+{
+ int slot;
+
+ for (slot = 0; slot < SNDRV_CARDS; slot++) {
+ if (slot < 32 && !(mask & (1U << slot)))
+ continue;
+ if (!test_bit(slot, snd_cards_lock)) {
+ if (check(module, slot))
+ return slot; /* found */
+ }
+ }
+ return mask; /* unchanged */
+}
+
+static int snd_card_do_free(struct snd_card *card);
+static const struct attribute_group *card_dev_attr_groups[];
+
+static void release_card_device(struct device *dev)
+{
+ snd_card_do_free(dev_to_snd_card(dev));
+}
/**
* snd_card_new - create and initialize a soundcard structure
+ * @parent: the parent device object
* @idx: card index (address) [0 ... (SNDRV_CARDS-1)]
* @xid: card identification (ASCII string)
* @module: top level module for locking
* @extra_size: allocate this extra size after the main soundcard structure
+ * @card_ret: the pointer to store the created card instance
*
* Creates and initializes a soundcard structure.
*
- * Returns kmallocated snd_card structure. Creates the ALSA control interface
- * (which is blocked until snd_card_register function is called).
+ * The function allocates snd_card instance via kzalloc with the given
+ * space for the driver to use freely. The allocated struct is stored
+ * in the given card_ret pointer.
+ *
+ * Return: Zero if successful or a negative error code.
*/
-struct snd_card *snd_card_new(int idx, const char *xid,
- struct module *module, int extra_size)
+int snd_card_new(struct device *parent, int idx, const char *xid,
+ struct module *module, int extra_size,
+ struct snd_card **card_ret)
{
struct snd_card *card;
int err;
+ if (snd_BUG_ON(!card_ret))
+ return -EINVAL;
+ *card_ret = NULL;
+
if (extra_size < 0)
extra_size = 0;
card = kzalloc(sizeof(*card) + extra_size, GFP_KERNEL);
- if (card == NULL)
- return NULL;
- if (xid) {
- if (!snd_info_check_reserved_words(xid))
- goto __error;
+ if (!card)
+ return -ENOMEM;
+ if (extra_size > 0)
+ card->private_data = (char *)card + sizeof(struct snd_card);
+ if (xid)
strlcpy(card->id, xid, sizeof(card->id));
- }
err = 0;
- write_lock(&snd_card_rwlock);
- if (idx < 0) {
- int idx2;
- for (idx2 = 0; idx2 < SNDRV_CARDS; idx2++)
- if (~snd_cards_lock & idx & 1<<idx2) {
- idx = idx2;
- if (idx >= snd_ecards_limit)
- snd_ecards_limit = idx + 1;
- break;
- }
- } else if (idx < snd_ecards_limit) {
- if (snd_cards_lock & (1 << idx))
- err = -ENODEV; /* invalid */
- } else if (idx < SNDRV_CARDS)
- snd_ecards_limit = idx + 1; /* increase the limit */
- else
+ mutex_lock(&snd_card_mutex);
+ if (idx < 0) /* first check the matching module-name slot */
+ idx = get_slot_from_bitmask(idx, module_slot_match, module);
+ if (idx < 0) /* if not matched, assign an empty slot */
+ idx = get_slot_from_bitmask(idx, check_empty_slot, module);
+ if (idx < 0)
err = -ENODEV;
- if (idx < 0 || err < 0) {
- write_unlock(&snd_card_rwlock);
- snd_printk(KERN_ERR "cannot find the slot for index %d (range 0-%i)\n", idx, snd_ecards_limit - 1);
- goto __error;
+ else if (idx < snd_ecards_limit) {
+ if (test_bit(idx, snd_cards_lock))
+ err = -EBUSY; /* invalid */
+ } else if (idx >= SNDRV_CARDS)
+ err = -ENODEV;
+ if (err < 0) {
+ mutex_unlock(&snd_card_mutex);
+ dev_err(parent, "cannot find the slot for index %d (range 0-%i), error: %d\n",
+ idx, snd_ecards_limit - 1, err);
+ kfree(card);
+ return err;
}
- snd_cards_lock |= 1 << idx; /* lock it */
- write_unlock(&snd_card_rwlock);
+ set_bit(idx, snd_cards_lock); /* lock it */
+ if (idx >= snd_ecards_limit)
+ snd_ecards_limit = idx + 1; /* increase the limit */
+ mutex_unlock(&snd_card_mutex);
+ card->dev = parent;
card->number = idx;
card->module = module;
INIT_LIST_HEAD(&card->devices);
init_rwsem(&card->controls_rwsem);
rwlock_init(&card->ctl_files_rwlock);
+ mutex_init(&card->user_ctl_lock);
INIT_LIST_HEAD(&card->controls);
INIT_LIST_HEAD(&card->ctl_files);
spin_lock_init(&card->files_lock);
- init_waitqueue_head(&card->shutdown_sleep);
- INIT_WORK(&card->free_workq, snd_card_free_thread, card);
+ INIT_LIST_HEAD(&card->files_list);
#ifdef CONFIG_PM
- init_MUTEX(&card->power_lock);
+ mutex_init(&card->power_lock);
init_waitqueue_head(&card->power_sleep);
#endif
+
+ device_initialize(&card->card_dev);
+ card->card_dev.parent = parent;
+ card->card_dev.class = sound_class;
+ card->card_dev.release = release_card_device;
+ card->card_dev.groups = card_dev_attr_groups;
+ err = kobject_set_name(&card->card_dev.kobj, "card%d", idx);
+ if (err < 0)
+ goto __error;
+
/* the control interface cannot be accessed from the user space until */
/* snd_cards_bitmask and snd_cards are set with snd_card_register */
- if ((err = snd_ctl_create(card)) < 0) {
- snd_printd("unable to register control minors\n");
+ err = snd_ctl_create(card);
+ if (err < 0) {
+ dev_err(parent, "unable to register control minors\n");
goto __error;
}
- if ((err = snd_info_card_create(card)) < 0) {
- snd_printd("unable to create card info\n");
+ err = snd_info_card_create(card);
+ if (err < 0) {
+ dev_err(parent, "unable to create card info\n");
goto __error_ctl;
}
- if (extra_size > 0)
- card->private_data = (char *)card + sizeof(struct snd_card);
- return card;
+ *card_ret = card;
+ return 0;
__error_ctl:
- snd_device_free_all(card, SNDRV_DEV_CMD_PRE);
+ snd_device_free_all(card);
__error:
- kfree(card);
- return NULL;
+ put_device(&card->card_dev);
+ return err;
+}
+EXPORT_SYMBOL(snd_card_new);
+
+/* return non-zero if a card is already locked */
+int snd_card_locked(int card)
+{
+ int locked;
+
+ mutex_lock(&snd_card_mutex);
+ locked = test_bit(card, snd_cards_lock);
+ mutex_unlock(&snd_card_mutex);
+ return locked;
+}
+
+static loff_t snd_disconnect_llseek(struct file *file, loff_t offset, int orig)
+{
+ return -ENODEV;
+}
+
+static ssize_t snd_disconnect_read(struct file *file, char __user *buf,
+ size_t count, loff_t *offset)
+{
+ return -ENODEV;
+}
+
+static ssize_t snd_disconnect_write(struct file *file, const char __user *buf,
+ size_t count, loff_t *offset)
+{
+ return -ENODEV;
+}
+
+static int snd_disconnect_release(struct inode *inode, struct file *file)
+{
+ struct snd_monitor_file *df = NULL, *_df;
+
+ spin_lock(&shutdown_lock);
+ list_for_each_entry(_df, &shutdown_files, shutdown_list) {
+ if (_df->file == file) {
+ df = _df;
+ list_del_init(&df->shutdown_list);
+ break;
+ }
+ }
+ spin_unlock(&shutdown_lock);
+
+ if (likely(df)) {
+ if ((file->f_flags & FASYNC) && df->disconnected_f_op->fasync)
+ df->disconnected_f_op->fasync(-1, file, 0);
+ return df->disconnected_f_op->release(inode, file);
+ }
+
+ panic("%s(%p, %p) failed!", __func__, inode, file);
}
static unsigned int snd_disconnect_poll(struct file * file, poll_table * wait)
@@ -174,13 +330,45 @@ static unsigned int snd_disconnect_poll(struct file * file, poll_table * wait)
return POLLERR | POLLNVAL;
}
+static long snd_disconnect_ioctl(struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+ return -ENODEV;
+}
+
+static int snd_disconnect_mmap(struct file *file, struct vm_area_struct *vma)
+{
+ return -ENODEV;
+}
+
+static int snd_disconnect_fasync(int fd, struct file *file, int on)
+{
+ return -ENODEV;
+}
+
+static const struct file_operations snd_shutdown_f_ops =
+{
+ .owner = THIS_MODULE,
+ .llseek = snd_disconnect_llseek,
+ .read = snd_disconnect_read,
+ .write = snd_disconnect_write,
+ .release = snd_disconnect_release,
+ .poll = snd_disconnect_poll,
+ .unlocked_ioctl = snd_disconnect_ioctl,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = snd_disconnect_ioctl,
+#endif
+ .mmap = snd_disconnect_mmap,
+ .fasync = snd_disconnect_fasync
+};
+
/**
* snd_card_disconnect - disconnect all APIs from the file-operations (user space)
* @card: soundcard structure
*
* Disconnects all APIs from the file-operations (user space).
*
- * Returns zero, otherwise a negative error code.
+ * Return: Zero, otherwise a negative error code.
*
* Note: The current implementation replaces all active file->f_op with special
* dummy file operations (they do nothing except release).
@@ -188,11 +376,11 @@ static unsigned int snd_disconnect_poll(struct file * file, poll_table * wait)
int snd_card_disconnect(struct snd_card *card)
{
struct snd_monitor_file *mfile;
- struct file *file;
- struct snd_shutdown_f_ops *s_f_ops;
- struct file_operations *f_ops, *old_f_ops;
int err;
+ if (!card)
+ return -EINVAL;
+
spin_lock(&card->files_lock);
if (card->shutdown) {
spin_unlock(&card->files_lock);
@@ -202,47 +390,32 @@ int snd_card_disconnect(struct snd_card *card)
spin_unlock(&card->files_lock);
/* phase 1: disable fops (user space) operations for ALSA API */
- write_lock(&snd_card_rwlock);
+ mutex_lock(&snd_card_mutex);
snd_cards[card->number] = NULL;
- write_unlock(&snd_card_rwlock);
+ clear_bit(card->number, snd_cards_lock);
+ mutex_unlock(&snd_card_mutex);
/* phase 2: replace file->f_op with special dummy operations */
spin_lock(&card->files_lock);
- mfile = card->files;
- while (mfile) {
- file = mfile->file;
-
+ list_for_each_entry(mfile, &card->files_list, list) {
/* it's critical part, use endless loop */
/* we have no room to fail */
- s_f_ops = kmalloc(sizeof(struct snd_shutdown_f_ops), GFP_ATOMIC);
- if (s_f_ops == NULL)
- panic("Atomic allocation failed for snd_shutdown_f_ops!");
-
- f_ops = &s_f_ops->f_ops;
+ mfile->disconnected_f_op = mfile->file->f_op;
- memset(f_ops, 0, sizeof(*f_ops));
- f_ops->owner = file->f_op->owner;
- f_ops->release = file->f_op->release;
- f_ops->poll = snd_disconnect_poll;
+ spin_lock(&shutdown_lock);
+ list_add(&mfile->shutdown_list, &shutdown_files);
+ spin_unlock(&shutdown_lock);
- s_f_ops->next = card->s_f_ops;
- card->s_f_ops = s_f_ops;
-
- f_ops = fops_get(f_ops);
-
- old_f_ops = file->f_op;
- file->f_op = f_ops; /* must be atomic */
- fops_put(old_f_ops);
-
- mfile = mfile->next;
+ mfile->file->f_op = &snd_shutdown_f_ops;
+ fops_get(mfile->file->f_op);
}
spin_unlock(&card->files_lock);
/* phase 3: notify all connected devices about disconnection */
/* at this point, they cannot respond to any calls except release() */
-#if defined(CONFIG_SND_MIXER_OSS) || defined(CONFIG_SND_MIXER_OSS_MODULE)
+#if IS_ENABLED(CONFIG_SND_MIXER_OSS)
if (snd_mixer_oss_notify_callback)
snd_mixer_oss_notify_callback(card, SND_MIXER_OSS_NOTIFY_DISCONNECT);
#endif
@@ -250,11 +423,21 @@ int snd_card_disconnect(struct snd_card *card)
/* notify all devices that we are disconnected */
err = snd_device_disconnect_all(card);
if (err < 0)
- snd_printk(KERN_ERR "not all devices for card %i can be disconnected\n", card->number);
+ dev_err(card->dev, "not all devices for card %i can be disconnected\n", card->number);
+ snd_info_card_disconnect(card);
+ if (card->registered) {
+ device_del(&card->card_dev);
+ card->registered = false;
+ }
+#ifdef CONFIG_PM
+ wake_up(&card->power_sleep);
+#endif
return 0;
}
+EXPORT_SYMBOL(snd_card_disconnect);
+
/**
* snd_card_free - frees given soundcard structure
* @card: soundcard structure
@@ -263,169 +446,235 @@ int snd_card_disconnect(struct snd_card *card)
* devices automatically. That is, you don't have to release the devices
* by yourself.
*
- * Returns zero. Frees all associated devices and frees the control
+ * Return: Zero. Frees all associated devices and frees the control
* interface associated to given soundcard.
*/
-int snd_card_free(struct snd_card *card)
+static int snd_card_do_free(struct snd_card *card)
{
- struct snd_shutdown_f_ops *s_f_ops;
-
- if (card == NULL)
- return -EINVAL;
- write_lock(&snd_card_rwlock);
- snd_cards[card->number] = NULL;
- write_unlock(&snd_card_rwlock);
-
-#ifdef CONFIG_PM
- wake_up(&card->power_sleep);
-#endif
- /* wait, until all devices are ready for the free operation */
- wait_event(card->shutdown_sleep, card->files == NULL);
-
-#if defined(CONFIG_SND_MIXER_OSS) || defined(CONFIG_SND_MIXER_OSS_MODULE)
+#if IS_ENABLED(CONFIG_SND_MIXER_OSS)
if (snd_mixer_oss_notify_callback)
snd_mixer_oss_notify_callback(card, SND_MIXER_OSS_NOTIFY_FREE);
#endif
- if (snd_device_free_all(card, SNDRV_DEV_CMD_PRE) < 0) {
- snd_printk(KERN_ERR "unable to free all devices (pre)\n");
- /* Fatal, but this situation should never occur */
- }
- if (snd_device_free_all(card, SNDRV_DEV_CMD_NORMAL) < 0) {
- snd_printk(KERN_ERR "unable to free all devices (normal)\n");
- /* Fatal, but this situation should never occur */
- }
- if (snd_device_free_all(card, SNDRV_DEV_CMD_POST) < 0) {
- snd_printk(KERN_ERR "unable to free all devices (post)\n");
- /* Fatal, but this situation should never occur */
- }
+ snd_device_free_all(card);
if (card->private_free)
card->private_free(card);
- snd_info_unregister(card->proc_id);
+ snd_info_free_entry(card->proc_id);
if (snd_info_card_free(card) < 0) {
- snd_printk(KERN_WARNING "unable to free card info\n");
+ dev_warn(card->dev, "unable to free card info\n");
/* Not fatal error */
}
- while (card->s_f_ops) {
- s_f_ops = card->s_f_ops;
- card->s_f_ops = s_f_ops->next;
- kfree(s_f_ops);
- }
- write_lock(&snd_card_rwlock);
- snd_cards_lock &= ~(1 << card->number);
- write_unlock(&snd_card_rwlock);
+ if (card->release_completion)
+ complete(card->release_completion);
kfree(card);
return 0;
}
-static void snd_card_free_thread(void * __card)
+int snd_card_free_when_closed(struct snd_card *card)
{
- struct snd_card *card = __card;
- struct module * module = card->module;
+ int ret = snd_card_disconnect(card);
+ if (ret)
+ return ret;
+ put_device(&card->card_dev);
+ return 0;
+}
+EXPORT_SYMBOL(snd_card_free_when_closed);
- if (!try_module_get(module)) {
- snd_printk(KERN_ERR "unable to lock toplevel module for card %i in free thread\n", card->number);
- module = NULL;
+int snd_card_free(struct snd_card *card)
+{
+ struct completion released;
+ int ret;
+
+ init_completion(&released);
+ card->release_completion = &released;
+ ret = snd_card_free_when_closed(card);
+ if (ret)
+ return ret;
+ /* wait, until all devices are ready for the free operation */
+ wait_for_completion(&released);
+ return 0;
+}
+EXPORT_SYMBOL(snd_card_free);
+
+/* retrieve the last word of shortname or longname */
+static const char *retrieve_id_from_card_name(const char *name)
+{
+ const char *spos = name;
+
+ while (*name) {
+ if (isspace(*name) && isalnum(name[1]))
+ spos = name + 1;
+ name++;
}
+ return spos;
+}
+
+/* return true if the given id string doesn't conflict any other card ids */
+static bool card_id_ok(struct snd_card *card, const char *id)
+{
+ int i;
+ if (!snd_info_check_reserved_words(id))
+ return false;
+ for (i = 0; i < snd_ecards_limit; i++) {
+ if (snd_cards[i] && snd_cards[i] != card &&
+ !strcmp(snd_cards[i]->id, id))
+ return false;
+ }
+ return true;
+}
- snd_card_free(card);
+/* copy to card->id only with valid letters from nid */
+static void copy_valid_id_string(struct snd_card *card, const char *src,
+ const char *nid)
+{
+ char *id = card->id;
+
+ while (*nid && !isalnum(*nid))
+ nid++;
+ if (isdigit(*nid))
+ *id++ = isalpha(*src) ? *src : 'D';
+ while (*nid && (size_t)(id - card->id) < sizeof(card->id) - 1) {
+ if (isalnum(*nid))
+ *id++ = *nid;
+ nid++;
+ }
+ *id = 0;
+}
+
+/* Set card->id from the given string
+ * If the string conflicts with other ids, add a suffix to make it unique.
+ */
+static void snd_card_set_id_no_lock(struct snd_card *card, const char *src,
+ const char *nid)
+{
+ int len, loops;
+ bool is_default = false;
+ char *id;
+
+ copy_valid_id_string(card, src, nid);
+ id = card->id;
- module_put(module);
+ again:
+ /* use "Default" for obviously invalid strings
+ * ("card" conflicts with proc directories)
+ */
+ if (!*id || !strncmp(id, "card", 4)) {
+ strcpy(id, "Default");
+ is_default = true;
+ }
+
+ len = strlen(id);
+ for (loops = 0; loops < SNDRV_CARDS; loops++) {
+ char *spos;
+ char sfxstr[5]; /* "_012" */
+ int sfxlen;
+
+ if (card_id_ok(card, id))
+ return; /* OK */
+
+ /* Add _XYZ suffix */
+ sprintf(sfxstr, "_%X", loops + 1);
+ sfxlen = strlen(sfxstr);
+ if (len + sfxlen >= sizeof(card->id))
+ spos = id + sizeof(card->id) - sfxlen - 1;
+ else
+ spos = id + len;
+ strcpy(spos, sfxstr);
+ }
+ /* fallback to the default id */
+ if (!is_default) {
+ *id = 0;
+ goto again;
+ }
+ /* last resort... */
+ dev_err(card->dev, "unable to set card id (%s)\n", id);
+ if (card->proc_root->name)
+ strlcpy(card->id, card->proc_root->name, sizeof(card->id));
}
/**
- * snd_card_free_in_thread - call snd_card_free() in thread
+ * snd_card_set_id - set card identification name
* @card: soundcard structure
+ * @nid: new identification string
*
- * This function schedules the call of snd_card_free() function in a
- * work queue. When all devices are released (non-busy), the work
- * is woken up and calls snd_card_free().
- *
- * When a card can be disconnected at any time by hotplug service,
- * this function should be used in disconnect (or detach) callback
- * instead of calling snd_card_free() directly.
- *
- * Returns - zero otherwise a negative error code if the start of thread failed.
+ * This function sets the card identification and checks for name
+ * collisions.
*/
-int snd_card_free_in_thread(struct snd_card *card)
+void snd_card_set_id(struct snd_card *card, const char *nid)
{
- if (card->files == NULL) {
- snd_card_free(card);
- return 0;
- }
-
- if (schedule_work(&card->free_workq))
- return 0;
+ /* check if user specified own card->id */
+ if (card->id[0] != '\0')
+ return;
+ mutex_lock(&snd_card_mutex);
+ snd_card_set_id_no_lock(card, nid, nid);
+ mutex_unlock(&snd_card_mutex);
+}
+EXPORT_SYMBOL(snd_card_set_id);
- snd_printk(KERN_ERR "schedule_work() failed in snd_card_free_in_thread for card %i\n", card->number);
- /* try to free the structure immediately */
- snd_card_free(card);
- return -EFAULT;
+static ssize_t
+card_id_show_attr(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct snd_card *card = container_of(dev, struct snd_card, card_dev);
+ return snprintf(buf, PAGE_SIZE, "%s\n", card->id);
}
-static void choose_default_id(struct snd_card *card)
+static ssize_t
+card_id_store_attr(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
- int i, len, idx_flag = 0, loops = SNDRV_CARDS;
- char *id, *spos;
-
- id = spos = card->shortname;
- while (*id != '\0') {
- if (*id == ' ')
- spos = id + 1;
- id++;
- }
- id = card->id;
- while (*spos != '\0' && !isalnum(*spos))
- spos++;
- if (isdigit(*spos))
- *id++ = isalpha(card->shortname[0]) ? card->shortname[0] : 'D';
- while (*spos != '\0' && (size_t)(id - card->id) < sizeof(card->id) - 1) {
- if (isalnum(*spos))
- *id++ = *spos;
- spos++;
- }
- *id = '\0';
+ struct snd_card *card = container_of(dev, struct snd_card, card_dev);
+ char buf1[sizeof(card->id)];
+ size_t copy = count > sizeof(card->id) - 1 ?
+ sizeof(card->id) - 1 : count;
+ size_t idx;
+ int c;
+
+ for (idx = 0; idx < copy; idx++) {
+ c = buf[idx];
+ if (!isalnum(c) && c != '_' && c != '-')
+ return -EINVAL;
+ }
+ memcpy(buf1, buf, copy);
+ buf1[copy] = '\0';
+ mutex_lock(&snd_card_mutex);
+ if (!card_id_ok(NULL, buf1)) {
+ mutex_unlock(&snd_card_mutex);
+ return -EEXIST;
+ }
+ strcpy(card->id, buf1);
+ snd_info_card_id_change(card);
+ mutex_unlock(&snd_card_mutex);
+
+ return count;
+}
- id = card->id;
-
- if (*id == '\0')
- strcpy(id, "default");
+static DEVICE_ATTR(id, S_IRUGO | S_IWUSR, card_id_show_attr, card_id_store_attr);
- while (1) {
- if (loops-- == 0) {
- snd_printk(KERN_ERR "unable to choose default card id (%s)\n", id);
- strcpy(card->id, card->proc_root->name);
- return;
- }
- if (!snd_info_check_reserved_words(id))
- goto __change;
- for (i = 0; i < snd_ecards_limit; i++) {
- if (snd_cards[i] && !strcmp(snd_cards[i]->id, id))
- goto __change;
- }
- break;
-
- __change:
- len = strlen(id);
- if (idx_flag) {
- if (id[len-1] != '9')
- id[len-1]++;
- else
- id[len-1] = 'A';
- } else if ((size_t)len <= sizeof(card->id) - 3) {
- strcat(id, "_1");
- idx_flag++;
- } else {
- spos = id + len - 2;
- if ((size_t)len <= sizeof(card->id) - 2)
- spos++;
- *spos++ = '_';
- *spos++ = '1';
- *spos++ = '\0';
- idx_flag++;
- }
- }
+static ssize_t
+card_number_show_attr(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct snd_card *card = container_of(dev, struct snd_card, card_dev);
+ return snprintf(buf, PAGE_SIZE, "%i\n", card->number);
}
+static DEVICE_ATTR(number, S_IRUGO, card_number_show_attr, NULL);
+
+static struct attribute *card_dev_attrs[] = {
+ &dev_attr_id.attr,
+ &dev_attr_number.attr,
+ NULL
+};
+
+static struct attribute_group card_dev_attr_group = {
+ .attrs = card_dev_attrs,
+};
+
+static const struct attribute_group *card_dev_attr_groups[] = {
+ &card_dev_attr_group,
+ NULL
+};
+
/**
* snd_card_register - register the soundcard
* @card: soundcard structure
@@ -435,35 +684,56 @@ static void choose_default_id(struct snd_card *card)
* external accesses. Thus, you should call this function at the end
* of the initialization of the card.
*
- * Returns zero otherwise a negative error code if the registrain failed.
+ * Return: Zero otherwise a negative error code if the registration failed.
*/
int snd_card_register(struct snd_card *card)
{
int err;
- snd_assert(card != NULL, return -EINVAL);
+ if (snd_BUG_ON(!card))
+ return -EINVAL;
+
+ if (!card->registered) {
+ err = device_add(&card->card_dev);
+ if (err < 0)
+ return err;
+ card->registered = true;
+ }
+
if ((err = snd_device_register_all(card)) < 0)
return err;
- write_lock(&snd_card_rwlock);
+ mutex_lock(&snd_card_mutex);
if (snd_cards[card->number]) {
/* already registered */
- write_unlock(&snd_card_rwlock);
+ mutex_unlock(&snd_card_mutex);
return 0;
}
- if (card->id[0] == '\0')
- choose_default_id(card);
+ if (*card->id) {
+ /* make a unique id name from the given string */
+ char tmpid[sizeof(card->id)];
+ memcpy(tmpid, card->id, sizeof(card->id));
+ snd_card_set_id_no_lock(card, tmpid, tmpid);
+ } else {
+ /* create an id from either shortname or longname */
+ const char *src;
+ src = *card->shortname ? card->shortname : card->longname;
+ snd_card_set_id_no_lock(card, src,
+ retrieve_id_from_card_name(src));
+ }
snd_cards[card->number] = card;
- write_unlock(&snd_card_rwlock);
+ mutex_unlock(&snd_card_mutex);
init_info_for_card(card);
-#if defined(CONFIG_SND_MIXER_OSS) || defined(CONFIG_SND_MIXER_OSS_MODULE)
+#if IS_ENABLED(CONFIG_SND_MIXER_OSS)
if (snd_mixer_oss_notify_callback)
snd_mixer_oss_notify_callback(card, SND_MIXER_OSS_NOTIFY_REGISTER);
#endif
return 0;
}
+EXPORT_SYMBOL(snd_card_register);
+
#ifdef CONFIG_PROC_FS
-static struct snd_info_entry *snd_card_info_entry = NULL;
+static struct snd_info_entry *snd_card_info_entry;
static void snd_card_info_read(struct snd_info_entry *entry,
struct snd_info_buffer *buffer)
@@ -472,7 +742,7 @@ static void snd_card_info_read(struct snd_info_entry *entry,
struct snd_card *card;
for (idx = count = 0; idx < SNDRV_CARDS; idx++) {
- read_lock(&snd_card_rwlock);
+ mutex_lock(&snd_card_mutex);
if ((card = snd_cards[idx]) != NULL) {
count++;
snd_iprintf(buffer, "%2i [%-15s]: %s - %s\n",
@@ -483,7 +753,7 @@ static void snd_card_info_read(struct snd_info_entry *entry,
snd_iprintf(buffer, " %s\n",
card->longname);
}
- read_unlock(&snd_card_rwlock);
+ mutex_unlock(&snd_card_mutex);
}
if (!count)
snd_iprintf(buffer, "--- no soundcards ---\n");
@@ -497,12 +767,12 @@ void snd_card_info_read_oss(struct snd_info_buffer *buffer)
struct snd_card *card;
for (idx = count = 0; idx < SNDRV_CARDS; idx++) {
- read_lock(&snd_card_rwlock);
+ mutex_lock(&snd_card_mutex);
if ((card = snd_cards[idx]) != NULL) {
count++;
snd_iprintf(buffer, "%s\n", card->longname);
}
- read_unlock(&snd_card_rwlock);
+ mutex_unlock(&snd_card_mutex);
}
if (!count) {
snd_iprintf(buffer, "--- no soundcards ---\n");
@@ -520,11 +790,11 @@ static void snd_card_module_info_read(struct snd_info_entry *entry,
struct snd_card *card;
for (idx = 0; idx < SNDRV_CARDS; idx++) {
- read_lock(&snd_card_rwlock);
+ mutex_lock(&snd_card_mutex);
if ((card = snd_cards[idx]) != NULL)
snd_iprintf(buffer, "%2i %s\n",
idx, card->module->name);
- read_unlock(&snd_card_rwlock);
+ mutex_unlock(&snd_card_mutex);
}
}
#endif
@@ -536,7 +806,6 @@ int __init snd_card_info_init(void)
entry = snd_info_create_module_entry(THIS_MODULE, "cards", NULL);
if (! entry)
return -ENOMEM;
- entry->c.text.read_size = PAGE_SIZE;
entry->c.text.read = snd_card_info_read;
if (snd_info_register(entry) < 0) {
snd_info_free_entry(entry);
@@ -547,7 +816,6 @@ int __init snd_card_info_init(void)
#ifdef MODULE
entry = snd_info_create_module_entry(THIS_MODULE, "modules", NULL);
if (entry) {
- entry->c.text.read_size = PAGE_SIZE;
entry->c.text.read = snd_card_module_info_read;
if (snd_info_register(entry) < 0)
snd_info_free_entry(entry);
@@ -561,9 +829,9 @@ int __init snd_card_info_init(void)
int __exit snd_card_info_done(void)
{
- snd_info_unregister(snd_card_info_entry);
+ snd_info_free_entry(snd_card_info_entry);
#ifdef MODULE
- snd_info_unregister(snd_card_module_info_entry);
+ snd_info_free_entry(snd_card_module_info_entry);
#endif
return 0;
}
@@ -578,7 +846,7 @@ int __exit snd_card_info_done(void)
* This function adds the component id string to the supported list.
* The component can be referred from the alsa-lib.
*
- * Returns zero otherwise a negative error code.
+ * Return: Zero otherwise a negative error code.
*/
int snd_component_add(struct snd_card *card, const char *component)
@@ -601,6 +869,8 @@ int snd_component_add(struct snd_card *card, const char *component)
return 0;
}
+EXPORT_SYMBOL(snd_component_add);
+
/**
* snd_card_file_add - add the file to the file list of the card
* @card: soundcard structure
@@ -610,7 +880,7 @@ int snd_component_add(struct snd_card *card, const char *component)
* This linked-list is used to keep tracking the connection state,
* and to avoid the release of busy resources by hotplug.
*
- * Returns zero or a negative error code.
+ * Return: zero or a negative error code.
*/
int snd_card_file_add(struct snd_card *card, struct file *file)
{
@@ -620,19 +890,22 @@ int snd_card_file_add(struct snd_card *card, struct file *file)
if (mfile == NULL)
return -ENOMEM;
mfile->file = file;
- mfile->next = NULL;
+ mfile->disconnected_f_op = NULL;
+ INIT_LIST_HEAD(&mfile->shutdown_list);
spin_lock(&card->files_lock);
if (card->shutdown) {
spin_unlock(&card->files_lock);
kfree(mfile);
return -ENODEV;
}
- mfile->next = card->files;
- card->files = mfile;
+ list_add(&mfile->list, &card->files_list);
+ get_device(&card->card_dev);
spin_unlock(&card->files_lock);
return 0;
}
+EXPORT_SYMBOL(snd_card_file_add);
+
/**
* snd_card_file_remove - remove the file from the file list
* @card: soundcard structure
@@ -640,52 +913,54 @@ int snd_card_file_add(struct snd_card *card, struct file *file)
*
* This function removes the file formerly added to the card via
* snd_card_file_add() function.
- * If all files are removed and the release of the card is
- * scheduled, it will wake up the the thread to call snd_card_free()
- * (see snd_card_free_in_thread() function).
+ * If all files are removed and snd_card_free_when_closed() was
+ * called beforehand, it processes the pending release of
+ * resources.
*
- * Returns zero or a negative error code.
+ * Return: Zero or a negative error code.
*/
int snd_card_file_remove(struct snd_card *card, struct file *file)
{
- struct snd_monitor_file *mfile, *pfile = NULL;
+ struct snd_monitor_file *mfile, *found = NULL;
spin_lock(&card->files_lock);
- mfile = card->files;
- while (mfile) {
+ list_for_each_entry(mfile, &card->files_list, list) {
if (mfile->file == file) {
- if (pfile)
- pfile->next = mfile->next;
- else
- card->files = mfile->next;
+ list_del(&mfile->list);
+ spin_lock(&shutdown_lock);
+ list_del(&mfile->shutdown_list);
+ spin_unlock(&shutdown_lock);
+ if (mfile->disconnected_f_op)
+ fops_put(mfile->disconnected_f_op);
+ found = mfile;
break;
}
- pfile = mfile;
- mfile = mfile->next;
}
spin_unlock(&card->files_lock);
- if (card->files == NULL)
- wake_up(&card->shutdown_sleep);
- if (!mfile) {
- snd_printk(KERN_ERR "ALSA card file remove problem (%p)\n", file);
+ if (!found) {
+ dev_err(card->dev, "card file remove problem (%p)\n", file);
return -ENOENT;
}
- kfree(mfile);
+ kfree(found);
+ put_device(&card->card_dev);
return 0;
}
+EXPORT_SYMBOL(snd_card_file_remove);
+
#ifdef CONFIG_PM
/**
* snd_power_wait - wait until the power-state is changed.
* @card: soundcard structure
* @power_state: expected power state
- * @file: file structure for the O_NONBLOCK check (optional)
*
* Waits until the power-state is changed.
*
+ * Return: Zero if successful, or a negative error code.
+ *
* Note: the power lock must be active before call.
*/
-int snd_power_wait(struct snd_card *card, unsigned int power_state, struct file *file)
+int snd_power_wait(struct snd_card *card, unsigned int power_state)
{
wait_queue_t wait;
int result = 0;
@@ -702,12 +977,6 @@ int snd_power_wait(struct snd_card *card, unsigned int power_state, struct file
}
if (snd_power_get_state(card) == power_state)
break;
-#if 0 /* block all devices */
- if (file && (file->f_flags & O_NONBLOCK)) {
- result = -EAGAIN;
- break;
- }
-#endif
set_current_state(TASK_UNINTERRUPTIBLE);
snd_power_unlock(card);
schedule_timeout(30 * HZ);
@@ -717,4 +986,5 @@ int snd_power_wait(struct snd_card *card, unsigned int power_state, struct file
return result;
}
+EXPORT_SYMBOL(snd_power_wait);
#endif /* CONFIG_PM */
diff --git a/sound/core/isadma.c b/sound/core/isadma.c
index 1a378951da5..31e8544d7f2 100644
--- a/sound/core/isadma.c
+++ b/sound/core/isadma.c
@@ -1,6 +1,6 @@
/*
* ISA DMA support functions
- * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
*
*
* This program is free software; you can redistribute it and/or modify
@@ -26,7 +26,7 @@
#undef HAVE_REALLY_SLOW_DMA_CONTROLLER
-#include <sound/driver.h>
+#include <linux/export.h>
#include <sound/core.h>
#include <asm/dma.h>
@@ -56,6 +56,8 @@ void snd_dma_program(unsigned long dma,
release_dma_lock(flags);
}
+EXPORT_SYMBOL(snd_dma_program);
+
/**
* snd_dma_disable - stop the ISA DMA transfer
* @dma: the dma number
@@ -72,32 +74,44 @@ void snd_dma_disable(unsigned long dma)
release_dma_lock(flags);
}
+EXPORT_SYMBOL(snd_dma_disable);
+
/**
* snd_dma_pointer - return the current pointer to DMA transfer buffer in bytes
* @dma: the dma number
* @size: the dma transfer size
*
- * Returns the current pointer in DMA tranfer buffer in bytes
+ * Return: The current pointer in DMA transfer buffer in bytes.
*/
unsigned int snd_dma_pointer(unsigned long dma, unsigned int size)
{
unsigned long flags;
- unsigned int result;
+ unsigned int result, result1;
flags = claim_dma_lock();
clear_dma_ff(dma);
if (!isa_dma_bridge_buggy)
disable_dma(dma);
result = get_dma_residue(dma);
+ /*
+ * HACK - read the counter again and choose higher value in order to
+ * avoid reading during counter lower byte roll over if the
+ * isa_dma_bridge_buggy is set.
+ */
+ result1 = get_dma_residue(dma);
if (!isa_dma_bridge_buggy)
enable_dma(dma);
release_dma_lock(flags);
+ if (unlikely(result < result1))
+ result = result1;
#ifdef CONFIG_SND_DEBUG
if (result > size)
- snd_printk(KERN_ERR "pointer (0x%x) for DMA #%ld is greater than transfer size (0x%x)\n", result, dma, size);
+ pr_err("ALSA: pointer (0x%x) for DMA #%ld is greater than transfer size (0x%x)\n", result, dma, size);
#endif
if (result >= size || result == 0)
return 0;
else
return size - result;
}
+
+EXPORT_SYMBOL(snd_dma_pointer);
diff --git a/sound/core/jack.c b/sound/core/jack.c
new file mode 100644
index 00000000000..8658578eb58
--- /dev/null
+++ b/sound/core/jack.c
@@ -0,0 +1,260 @@
+/*
+ * Jack abstraction layer
+ *
+ * Copyright 2008 Wolfson Microelectronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <linux/input.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <sound/jack.h>
+#include <sound/core.h>
+
+static int jack_switch_types[SND_JACK_SWITCH_TYPES] = {
+ SW_HEADPHONE_INSERT,
+ SW_MICROPHONE_INSERT,
+ SW_LINEOUT_INSERT,
+ SW_JACK_PHYSICAL_INSERT,
+ SW_VIDEOOUT_INSERT,
+ SW_LINEIN_INSERT,
+};
+
+static int snd_jack_dev_disconnect(struct snd_device *device)
+{
+ struct snd_jack *jack = device->device_data;
+
+ if (!jack->input_dev)
+ return 0;
+
+ /* If the input device is registered with the input subsystem
+ * then we need to use a different deallocator. */
+ if (jack->registered)
+ input_unregister_device(jack->input_dev);
+ else
+ input_free_device(jack->input_dev);
+ jack->input_dev = NULL;
+ return 0;
+}
+
+static int snd_jack_dev_free(struct snd_device *device)
+{
+ struct snd_jack *jack = device->device_data;
+
+ if (jack->private_free)
+ jack->private_free(jack);
+
+ snd_jack_dev_disconnect(device);
+
+ kfree(jack->id);
+ kfree(jack);
+
+ return 0;
+}
+
+static int snd_jack_dev_register(struct snd_device *device)
+{
+ struct snd_jack *jack = device->device_data;
+ struct snd_card *card = device->card;
+ int err, i;
+
+ snprintf(jack->name, sizeof(jack->name), "%s %s",
+ card->shortname, jack->id);
+ jack->input_dev->name = jack->name;
+
+ /* Default to the sound card device. */
+ if (!jack->input_dev->dev.parent)
+ jack->input_dev->dev.parent = snd_card_get_device_link(card);
+
+ /* Add capabilities for any keys that are enabled */
+ for (i = 0; i < ARRAY_SIZE(jack->key); i++) {
+ int testbit = SND_JACK_BTN_0 >> i;
+
+ if (!(jack->type & testbit))
+ continue;
+
+ if (!jack->key[i])
+ jack->key[i] = BTN_0 + i;
+
+ input_set_capability(jack->input_dev, EV_KEY, jack->key[i]);
+ }
+
+ err = input_register_device(jack->input_dev);
+ if (err == 0)
+ jack->registered = 1;
+
+ return err;
+}
+
+/**
+ * snd_jack_new - Create a new jack
+ * @card: the card instance
+ * @id: an identifying string for this jack
+ * @type: a bitmask of enum snd_jack_type values that can be detected by
+ * this jack
+ * @jjack: Used to provide the allocated jack object to the caller.
+ *
+ * Creates a new jack object.
+ *
+ * Return: Zero if successful, or a negative error code on failure.
+ * On success @jjack will be initialised.
+ */
+int snd_jack_new(struct snd_card *card, const char *id, int type,
+ struct snd_jack **jjack)
+{
+ struct snd_jack *jack;
+ int err;
+ int i;
+ static struct snd_device_ops ops = {
+ .dev_free = snd_jack_dev_free,
+ .dev_register = snd_jack_dev_register,
+ .dev_disconnect = snd_jack_dev_disconnect,
+ };
+
+ jack = kzalloc(sizeof(struct snd_jack), GFP_KERNEL);
+ if (jack == NULL)
+ return -ENOMEM;
+
+ jack->id = kstrdup(id, GFP_KERNEL);
+
+ jack->input_dev = input_allocate_device();
+ if (jack->input_dev == NULL) {
+ err = -ENOMEM;
+ goto fail_input;
+ }
+
+ jack->input_dev->phys = "ALSA";
+
+ jack->type = type;
+
+ for (i = 0; i < SND_JACK_SWITCH_TYPES; i++)
+ if (type & (1 << i))
+ input_set_capability(jack->input_dev, EV_SW,
+ jack_switch_types[i]);
+
+ err = snd_device_new(card, SNDRV_DEV_JACK, jack, &ops);
+ if (err < 0)
+ goto fail_input;
+
+ *jjack = jack;
+
+ return 0;
+
+fail_input:
+ input_free_device(jack->input_dev);
+ kfree(jack->id);
+ kfree(jack);
+ return err;
+}
+EXPORT_SYMBOL(snd_jack_new);
+
+/**
+ * snd_jack_set_parent - Set the parent device for a jack
+ *
+ * @jack: The jack to configure
+ * @parent: The device to set as parent for the jack.
+ *
+ * Set the parent for the jack devices in the device tree. This
+ * function is only valid prior to registration of the jack. If no
+ * parent is configured then the parent device will be the sound card.
+ */
+void snd_jack_set_parent(struct snd_jack *jack, struct device *parent)
+{
+ WARN_ON(jack->registered);
+
+ jack->input_dev->dev.parent = parent;
+}
+EXPORT_SYMBOL(snd_jack_set_parent);
+
+/**
+ * snd_jack_set_key - Set a key mapping on a jack
+ *
+ * @jack: The jack to configure
+ * @type: Jack report type for this key
+ * @keytype: Input layer key type to be reported
+ *
+ * Map a SND_JACK_BTN_ button type to an input layer key, allowing
+ * reporting of keys on accessories via the jack abstraction. If no
+ * mapping is provided but keys are enabled in the jack type then
+ * BTN_n numeric buttons will be reported.
+ *
+ * If jacks are not reporting via the input API this call will have no
+ * effect.
+ *
+ * Note that this is intended to be use by simple devices with small
+ * numbers of keys that can be reported. It is also possible to
+ * access the input device directly - devices with complex input
+ * capabilities on accessories should consider doing this rather than
+ * using this abstraction.
+ *
+ * This function may only be called prior to registration of the jack.
+ *
+ * Return: Zero if successful, or a negative error code on failure.
+ */
+int snd_jack_set_key(struct snd_jack *jack, enum snd_jack_types type,
+ int keytype)
+{
+ int key = fls(SND_JACK_BTN_0) - fls(type);
+
+ WARN_ON(jack->registered);
+
+ if (!keytype || key >= ARRAY_SIZE(jack->key))
+ return -EINVAL;
+
+ jack->type |= type;
+ jack->key[key] = keytype;
+
+ return 0;
+}
+EXPORT_SYMBOL(snd_jack_set_key);
+
+/**
+ * snd_jack_report - Report the current status of a jack
+ *
+ * @jack: The jack to report status for
+ * @status: The current status of the jack
+ */
+void snd_jack_report(struct snd_jack *jack, int status)
+{
+ int i;
+
+ if (!jack)
+ return;
+
+ for (i = 0; i < ARRAY_SIZE(jack->key); i++) {
+ int testbit = SND_JACK_BTN_0 >> i;
+
+ if (jack->type & testbit)
+ input_report_key(jack->input_dev, jack->key[i],
+ status & testbit);
+ }
+
+ for (i = 0; i < ARRAY_SIZE(jack_switch_types); i++) {
+ int testbit = 1 << i;
+ if (jack->type & testbit)
+ input_report_switch(jack->input_dev,
+ jack_switch_types[i],
+ status & testbit);
+ }
+
+ input_sync(jack->input_dev);
+}
+EXPORT_SYMBOL(snd_jack_report);
+
+MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
+MODULE_DESCRIPTION("Jack detection support for ALSA");
+MODULE_LICENSE("GPL");
diff --git a/sound/core/memalloc.c b/sound/core/memalloc.c
index 19b3dcbb09c..082509eb805 100644
--- a/sound/core/memalloc.c
+++ b/sound/core/memalloc.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
* Takashi Iwai <tiwai@suse.de>
*
* Generic memory allocators
@@ -21,129 +21,11 @@
*
*/
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/proc_fs.h>
-#include <linux/init.h>
-#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/mm.h>
-#include <asm/uaccess.h>
#include <linux/dma-mapping.h>
-#include <linux/moduleparam.h>
-#include <asm/semaphore.h>
+#include <linux/genalloc.h>
#include <sound/memalloc.h>
-#ifdef CONFIG_SBUS
-#include <asm/sbus.h>
-#endif
-
-
-MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>, Jaroslav Kysela <perex@suse.cz>");
-MODULE_DESCRIPTION("Memory allocator for ALSA system.");
-MODULE_LICENSE("GPL");
-
-
-/*
- */
-
-void *snd_malloc_sgbuf_pages(struct device *device,
- size_t size, struct snd_dma_buffer *dmab,
- size_t *res_size);
-int snd_free_sgbuf_pages(struct snd_dma_buffer *dmab);
-
-/*
- */
-
-static DECLARE_MUTEX(list_mutex);
-static LIST_HEAD(mem_list_head);
-
-/* buffer preservation list */
-struct snd_mem_list {
- struct snd_dma_buffer buffer;
- unsigned int id;
- struct list_head list;
-};
-
-/* id for pre-allocated buffers */
-#define SNDRV_DMA_DEVICE_UNUSED (unsigned int)-1
-
-#ifdef CONFIG_SND_DEBUG
-#define __ASTRING__(x) #x
-#define snd_assert(expr, args...) do {\
- if (!(expr)) {\
- printk(KERN_ERR "snd-malloc: BUG? (%s) (called from %p)\n", __ASTRING__(expr), __builtin_return_address(0));\
- args;\
- }\
-} while (0)
-#else
-#define snd_assert(expr, args...) /**/
-#endif
-
-/*
- * Hacks
- */
-
-#if defined(__i386__) || defined(__ppc__) || defined(__x86_64__)
-/*
- * A hack to allocate large buffers via dma_alloc_coherent()
- *
- * since dma_alloc_coherent always tries GFP_DMA when the requested
- * pci memory region is below 32bit, it happens quite often that even
- * 2 order of pages cannot be allocated.
- *
- * so in the following, we allocate at first without dma_mask, so that
- * allocation will be done without GFP_DMA. if the area doesn't match
- * with the requested region, then realloate with the original dma_mask
- * again.
- *
- * Really, we want to move this type of thing into dma_alloc_coherent()
- * so dma_mask doesn't have to be messed with.
- */
-
-static void *snd_dma_hack_alloc_coherent(struct device *dev, size_t size,
- dma_addr_t *dma_handle,
- gfp_t flags)
-{
- void *ret;
- u64 dma_mask, coherent_dma_mask;
-
- if (dev == NULL || !dev->dma_mask)
- return dma_alloc_coherent(dev, size, dma_handle, flags);
- dma_mask = *dev->dma_mask;
- coherent_dma_mask = dev->coherent_dma_mask;
- *dev->dma_mask = 0xffffffff; /* do without masking */
- dev->coherent_dma_mask = 0xffffffff; /* do without masking */
- ret = dma_alloc_coherent(dev, size, dma_handle, flags);
- *dev->dma_mask = dma_mask; /* restore */
- dev->coherent_dma_mask = coherent_dma_mask; /* restore */
- if (ret) {
- /* obtained address is out of range? */
- if (((unsigned long)*dma_handle + size - 1) & ~dma_mask) {
- /* reallocate with the proper mask */
- dma_free_coherent(dev, size, ret, *dma_handle);
- ret = dma_alloc_coherent(dev, size, dma_handle, flags);
- }
- } else {
- /* wish to success now with the proper mask... */
- if (dma_mask != 0xffffffffUL) {
- /* allocation with GFP_ATOMIC to avoid the long stall */
- flags &= ~GFP_KERNEL;
- flags |= GFP_ATOMIC;
- ret = dma_alloc_coherent(dev, size, dma_handle, flags);
- }
- }
- return ret;
-}
-
-/* redefine dma_alloc_coherent for some architectures */
-#undef dma_alloc_coherent
-#define dma_alloc_coherent snd_dma_hack_alloc_coherent
-
-#endif /* arch */
-
-#if ! defined(__arm__)
-#define NEED_RESERVE_PAGES
-#endif
/*
*
@@ -151,32 +33,6 @@ static void *snd_dma_hack_alloc_coherent(struct device *dev, size_t size,
*
*/
-static long snd_allocated_pages; /* holding the number of allocated pages */
-
-static inline void inc_snd_pages(int order)
-{
- snd_allocated_pages += 1 << order;
-}
-
-static inline void dec_snd_pages(int order)
-{
- snd_allocated_pages -= 1 << order;
-}
-
-static void mark_pages(struct page *page, int order)
-{
- struct page *last_page = page + (1 << order);
- while (page < last_page)
- SetPageReserved(page++);
-}
-
-static void unmark_pages(struct page *page, int order)
-{
- struct page *last_page = page + (1 << order);
- while (page < last_page)
- ClearPageReserved(page++);
-}
-
/**
* snd_malloc_pages - allocate pages with the given size
* @size: the size to allocate in bytes
@@ -184,22 +40,19 @@ static void unmark_pages(struct page *page, int order)
*
* Allocates the physically contiguous pages with the given size.
*
- * Returns the pointer of the buffer, or NULL if no enoguh memory.
+ * Return: The pointer of the buffer, or %NULL if no enough memory.
*/
void *snd_malloc_pages(size_t size, gfp_t gfp_flags)
{
int pg;
- void *res;
- snd_assert(size > 0, return NULL);
- snd_assert(gfp_flags != 0, return NULL);
+ if (WARN_ON(!size))
+ return NULL;
+ if (WARN_ON(!gfp_flags))
+ return NULL;
gfp_flags |= __GFP_COMP; /* compound page lets parts be mapped */
pg = get_order(size);
- if ((res = (void *) __get_free_pages(gfp_flags, pg)) != NULL) {
- mark_pages(virt_to_page(res), pg);
- inc_snd_pages(pg);
- }
- return res;
+ return (void *) __get_free_pages(gfp_flags, pg);
}
/**
@@ -216,8 +69,6 @@ void snd_free_pages(void *ptr, size_t size)
if (ptr == NULL)
return;
pg = get_order(size);
- dec_snd_pages(pg);
- unmark_pages(virt_to_page(ptr), pg);
free_pages((unsigned long) ptr, pg);
}
@@ -227,29 +78,21 @@ void snd_free_pages(void *ptr, size_t size)
*
*/
+#ifdef CONFIG_HAS_DMA
/* allocate the coherent DMA pages */
static void *snd_malloc_dev_pages(struct device *dev, size_t size, dma_addr_t *dma)
{
int pg;
- void *res;
gfp_t gfp_flags;
- snd_assert(size > 0, return NULL);
- snd_assert(dma != NULL, return NULL);
+ if (WARN_ON(!dma))
+ return NULL;
pg = get_order(size);
gfp_flags = GFP_KERNEL
| __GFP_COMP /* compound page lets parts be mapped */
| __GFP_NORETRY /* don't trigger OOM-killer */
| __GFP_NOWARN; /* no stack trace print - this call is non-critical */
- res = dma_alloc_coherent(dev, PAGE_SIZE << pg, dma, gfp_flags);
- if (res != NULL) {
-#ifdef NEED_RESERVE_PAGES
- mark_pages(virt_to_page(res), pg); /* should be dma_to_page() */
-#endif
- inc_snd_pages(pg);
- }
-
- return res;
+ return dma_alloc_coherent(dev, PAGE_SIZE << pg, dma, gfp_flags);
}
/* free the coherent DMA pages */
@@ -261,45 +104,50 @@ static void snd_free_dev_pages(struct device *dev, size_t size, void *ptr,
if (ptr == NULL)
return;
pg = get_order(size);
- dec_snd_pages(pg);
-#ifdef NEED_RESERVE_PAGES
- unmark_pages(virt_to_page(ptr), pg); /* should be dma_to_page() */
-#endif
dma_free_coherent(dev, PAGE_SIZE << pg, ptr, dma);
}
-#ifdef CONFIG_SBUS
-
-static void *snd_malloc_sbus_pages(struct device *dev, size_t size,
- dma_addr_t *dma_addr)
+#ifdef CONFIG_GENERIC_ALLOCATOR
+/**
+ * snd_malloc_dev_iram - allocate memory from on-chip internal ram
+ * @dmab: buffer allocation record to store the allocated data
+ * @size: number of bytes to allocate from the iram
+ *
+ * This function requires iram phandle provided via of_node
+ */
+static void snd_malloc_dev_iram(struct snd_dma_buffer *dmab, size_t size)
{
- struct sbus_dev *sdev = (struct sbus_dev *)dev;
- int pg;
- void *res;
+ struct device *dev = dmab->dev.dev;
+ struct gen_pool *pool = NULL;
- snd_assert(size > 0, return NULL);
- snd_assert(dma_addr != NULL, return NULL);
- pg = get_order(size);
- res = sbus_alloc_consistent(sdev, PAGE_SIZE * (1 << pg), dma_addr);
- if (res != NULL)
- inc_snd_pages(pg);
- return res;
-}
+ dmab->area = NULL;
+ dmab->addr = 0;
-static void snd_free_sbus_pages(struct device *dev, size_t size,
- void *ptr, dma_addr_t dma_addr)
-{
- struct sbus_dev *sdev = (struct sbus_dev *)dev;
- int pg;
+ if (dev->of_node)
+ pool = of_get_named_gen_pool(dev->of_node, "iram", 0);
- if (ptr == NULL)
+ if (!pool)
return;
- pg = get_order(size);
- dec_snd_pages(pg);
- sbus_free_consistent(sdev, PAGE_SIZE * (1 << pg), ptr, dma_addr);
+
+ /* Assign the pool into private_data field */
+ dmab->private_data = pool;
+
+ dmab->area = gen_pool_dma_alloc(pool, size, &dmab->addr);
}
-#endif /* CONFIG_SBUS */
+/**
+ * snd_free_dev_iram - free allocated specific memory from on-chip internal ram
+ * @dmab: buffer allocation record to store the allocated data
+ */
+static void snd_free_dev_iram(struct snd_dma_buffer *dmab)
+{
+ struct gen_pool *pool = dmab->private_data;
+
+ if (pool && dmab->area)
+ gen_pool_free(pool, (unsigned long)dmab->area, dmab->bytes);
+}
+#endif /* CONFIG_GENERIC_ALLOCATOR */
+#endif /* CONFIG_HAS_DMA */
/*
*
@@ -317,37 +165,49 @@ static void snd_free_sbus_pages(struct device *dev, size_t size,
*
* Calls the memory-allocator function for the corresponding
* buffer type.
- *
- * Returns zero if the buffer with the given size is allocated successfuly,
- * other a negative value at error.
+ *
+ * Return: Zero if the buffer with the given size is allocated successfully,
+ * otherwise a negative value on error.
*/
int snd_dma_alloc_pages(int type, struct device *device, size_t size,
struct snd_dma_buffer *dmab)
{
- snd_assert(size > 0, return -ENXIO);
- snd_assert(dmab != NULL, return -ENXIO);
+ if (WARN_ON(!size))
+ return -ENXIO;
+ if (WARN_ON(!dmab))
+ return -ENXIO;
dmab->dev.type = type;
dmab->dev.dev = device;
dmab->bytes = 0;
switch (type) {
case SNDRV_DMA_TYPE_CONTINUOUS:
- dmab->area = snd_malloc_pages(size, (unsigned long)device);
+ dmab->area = snd_malloc_pages(size,
+ (__force gfp_t)(unsigned long)device);
dmab->addr = 0;
break;
-#ifdef CONFIG_SBUS
- case SNDRV_DMA_TYPE_SBUS:
- dmab->area = snd_malloc_sbus_pages(device, size, &dmab->addr);
- break;
-#endif
+#ifdef CONFIG_HAS_DMA
+#ifdef CONFIG_GENERIC_ALLOCATOR
+ case SNDRV_DMA_TYPE_DEV_IRAM:
+ snd_malloc_dev_iram(dmab, size);
+ if (dmab->area)
+ break;
+ /* Internal memory might have limited size and no enough space,
+ * so if we fail to malloc, try to fetch memory traditionally.
+ */
+ dmab->dev.type = SNDRV_DMA_TYPE_DEV;
+#endif /* CONFIG_GENERIC_ALLOCATOR */
case SNDRV_DMA_TYPE_DEV:
dmab->area = snd_malloc_dev_pages(device, size, &dmab->addr);
break;
+#endif
+#ifdef CONFIG_SND_DMA_SGBUF
case SNDRV_DMA_TYPE_DEV_SG:
snd_malloc_sgbuf_pages(device, size, dmab, NULL);
break;
+#endif
default:
- printk(KERN_ERR "snd-malloc: invalid device type %d\n", type);
+ pr_err("snd-malloc: invalid device type %d\n", type);
dmab->area = NULL;
dmab->addr = 0;
return -ENXIO;
@@ -369,24 +229,26 @@ int snd_dma_alloc_pages(int type, struct device *device, size_t size,
* buffer type. When no space is left, this function reduces the size and
* tries to allocate again. The size actually allocated is stored in
* res_size argument.
- *
- * Returns zero if the buffer with the given size is allocated successfuly,
- * other a negative value at error.
+ *
+ * Return: Zero if the buffer with the given size is allocated successfully,
+ * otherwise a negative value on error.
*/
int snd_dma_alloc_pages_fallback(int type, struct device *device, size_t size,
struct snd_dma_buffer *dmab)
{
int err;
- snd_assert(size > 0, return -ENXIO);
- snd_assert(dmab != NULL, return -ENXIO);
-
while ((err = snd_dma_alloc_pages(type, device, size, dmab)) < 0) {
+ size_t aligned_size;
if (err != -ENOMEM)
return err;
- size >>= 1;
if (size <= PAGE_SIZE)
return -ENOMEM;
+ aligned_size = PAGE_SIZE << get_order(size);
+ if (size != aligned_size)
+ size = aligned_size;
+ else
+ size >>= 1;
}
if (! dmab->area)
return -ENOMEM;
@@ -406,265 +268,26 @@ void snd_dma_free_pages(struct snd_dma_buffer *dmab)
case SNDRV_DMA_TYPE_CONTINUOUS:
snd_free_pages(dmab->area, dmab->bytes);
break;
-#ifdef CONFIG_SBUS
- case SNDRV_DMA_TYPE_SBUS:
- snd_free_sbus_pages(dmab->dev.dev, dmab->bytes, dmab->area, dmab->addr);
+#ifdef CONFIG_HAS_DMA
+#ifdef CONFIG_GENERIC_ALLOCATOR
+ case SNDRV_DMA_TYPE_DEV_IRAM:
+ snd_free_dev_iram(dmab);
break;
-#endif
+#endif /* CONFIG_GENERIC_ALLOCATOR */
case SNDRV_DMA_TYPE_DEV:
snd_free_dev_pages(dmab->dev.dev, dmab->bytes, dmab->area, dmab->addr);
break;
+#endif
+#ifdef CONFIG_SND_DMA_SGBUF
case SNDRV_DMA_TYPE_DEV_SG:
snd_free_sgbuf_pages(dmab);
break;
- default:
- printk(KERN_ERR "snd-malloc: invalid device type %d\n", dmab->dev.type);
- }
-}
-
-
-/**
- * snd_dma_get_reserved - get the reserved buffer for the given device
- * @dmab: the buffer allocation record to store
- * @id: the buffer id
- *
- * Looks for the reserved-buffer list and re-uses if the same buffer
- * is found in the list. When the buffer is found, it's removed from the free list.
- *
- * Returns the size of buffer if the buffer is found, or zero if not found.
- */
-size_t snd_dma_get_reserved_buf(struct snd_dma_buffer *dmab, unsigned int id)
-{
- struct list_head *p;
- struct snd_mem_list *mem;
-
- snd_assert(dmab, return 0);
-
- down(&list_mutex);
- list_for_each(p, &mem_list_head) {
- mem = list_entry(p, struct snd_mem_list, list);
- if (mem->id == id &&
- (mem->buffer.dev.dev == NULL || dmab->dev.dev == NULL ||
- ! memcmp(&mem->buffer.dev, &dmab->dev, sizeof(dmab->dev)))) {
- struct device *dev = dmab->dev.dev;
- list_del(p);
- *dmab = mem->buffer;
- if (dmab->dev.dev == NULL)
- dmab->dev.dev = dev;
- kfree(mem);
- up(&list_mutex);
- return dmab->bytes;
- }
- }
- up(&list_mutex);
- return 0;
-}
-
-/**
- * snd_dma_reserve_buf - reserve the buffer
- * @dmab: the buffer to reserve
- * @id: the buffer id
- *
- * Reserves the given buffer as a reserved buffer.
- *
- * Returns zero if successful, or a negative code at error.
- */
-int snd_dma_reserve_buf(struct snd_dma_buffer *dmab, unsigned int id)
-{
- struct snd_mem_list *mem;
-
- snd_assert(dmab, return -EINVAL);
- mem = kmalloc(sizeof(*mem), GFP_KERNEL);
- if (! mem)
- return -ENOMEM;
- down(&list_mutex);
- mem->buffer = *dmab;
- mem->id = id;
- list_add_tail(&mem->list, &mem_list_head);
- up(&list_mutex);
- return 0;
-}
-
-/*
- * purge all reserved buffers
- */
-static void free_all_reserved_pages(void)
-{
- struct list_head *p;
- struct snd_mem_list *mem;
-
- down(&list_mutex);
- while (! list_empty(&mem_list_head)) {
- p = mem_list_head.next;
- mem = list_entry(p, struct snd_mem_list, list);
- list_del(p);
- snd_dma_free_pages(&mem->buffer);
- kfree(mem);
- }
- up(&list_mutex);
-}
-
-
-#ifdef CONFIG_PROC_FS
-/*
- * proc file interface
- */
-#define SND_MEM_PROC_FILE "driver/snd-page-alloc"
-static struct proc_dir_entry *snd_mem_proc;
-
-static int snd_mem_proc_read(char *page, char **start, off_t off,
- int count, int *eof, void *data)
-{
- int len = 0;
- long pages = snd_allocated_pages >> (PAGE_SHIFT-12);
- struct list_head *p;
- struct snd_mem_list *mem;
- int devno;
- static char *types[] = { "UNKNOWN", "CONT", "DEV", "DEV-SG", "SBUS" };
-
- down(&list_mutex);
- len += snprintf(page + len, count - len,
- "pages : %li bytes (%li pages per %likB)\n",
- pages * PAGE_SIZE, pages, PAGE_SIZE / 1024);
- devno = 0;
- list_for_each(p, &mem_list_head) {
- mem = list_entry(p, struct snd_mem_list, list);
- devno++;
- len += snprintf(page + len, count - len,
- "buffer %d : ID %08x : type %s\n",
- devno, mem->id, types[mem->buffer.dev.type]);
- len += snprintf(page + len, count - len,
- " addr = 0x%lx, size = %d bytes\n",
- (unsigned long)mem->buffer.addr, (int)mem->buffer.bytes);
- }
- up(&list_mutex);
- return len;
-}
-
-/* FIXME: for pci only - other bus? */
-#ifdef CONFIG_PCI
-#define gettoken(bufp) strsep(bufp, " \t\n")
-
-static int snd_mem_proc_write(struct file *file, const char __user *buffer,
- unsigned long count, void *data)
-{
- char buf[128];
- char *token, *p;
-
- if (count > ARRAY_SIZE(buf) - 1)
- count = ARRAY_SIZE(buf) - 1;
- if (copy_from_user(buf, buffer, count))
- return -EFAULT;
- buf[ARRAY_SIZE(buf) - 1] = '\0';
-
- p = buf;
- token = gettoken(&p);
- if (! token || *token == '#')
- return (int)count;
- if (strcmp(token, "add") == 0) {
- char *endp;
- int vendor, device, size, buffers;
- long mask;
- int i, alloced;
- struct pci_dev *pci;
-
- if ((token = gettoken(&p)) == NULL ||
- (vendor = simple_strtol(token, NULL, 0)) <= 0 ||
- (token = gettoken(&p)) == NULL ||
- (device = simple_strtol(token, NULL, 0)) <= 0 ||
- (token = gettoken(&p)) == NULL ||
- (mask = simple_strtol(token, NULL, 0)) < 0 ||
- (token = gettoken(&p)) == NULL ||
- (size = memparse(token, &endp)) < 64*1024 ||
- size > 16*1024*1024 /* too big */ ||
- (token = gettoken(&p)) == NULL ||
- (buffers = simple_strtol(token, NULL, 0)) <= 0 ||
- buffers > 4) {
- printk(KERN_ERR "snd-page-alloc: invalid proc write format\n");
- return (int)count;
- }
- vendor &= 0xffff;
- device &= 0xffff;
-
- alloced = 0;
- pci = NULL;
- while ((pci = pci_get_device(vendor, device, pci)) != NULL) {
- if (mask > 0 && mask < 0xffffffff) {
- if (pci_set_dma_mask(pci, mask) < 0 ||
- pci_set_consistent_dma_mask(pci, mask) < 0) {
- printk(KERN_ERR "snd-page-alloc: cannot set DMA mask %lx for pci %04x:%04x\n", mask, vendor, device);
- return (int)count;
- }
- }
- for (i = 0; i < buffers; i++) {
- struct snd_dma_buffer dmab;
- memset(&dmab, 0, sizeof(dmab));
- if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
- size, &dmab) < 0) {
- printk(KERN_ERR "snd-page-alloc: cannot allocate buffer pages (size = %d)\n", size);
- pci_dev_put(pci);
- return (int)count;
- }
- snd_dma_reserve_buf(&dmab, snd_dma_pci_buf_id(pci));
- }
- alloced++;
- }
- if (! alloced) {
- for (i = 0; i < buffers; i++) {
- struct snd_dma_buffer dmab;
- memset(&dmab, 0, sizeof(dmab));
- /* FIXME: We can allocate only in ZONE_DMA
- * without a device pointer!
- */
- if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, NULL,
- size, &dmab) < 0) {
- printk(KERN_ERR "snd-page-alloc: cannot allocate buffer pages (size = %d)\n", size);
- break;
- }
- snd_dma_reserve_buf(&dmab, (unsigned int)((vendor << 16) | device));
- }
- }
- } else if (strcmp(token, "erase") == 0)
- /* FIXME: need for releasing each buffer chunk? */
- free_all_reserved_pages();
- else
- printk(KERN_ERR "snd-page-alloc: invalid proc cmd\n");
- return (int)count;
-}
-#endif /* CONFIG_PCI */
-#endif /* CONFIG_PROC_FS */
-
-/*
- * module entry
- */
-
-static int __init snd_mem_init(void)
-{
-#ifdef CONFIG_PROC_FS
- snd_mem_proc = create_proc_entry(SND_MEM_PROC_FILE, 0644, NULL);
- if (snd_mem_proc) {
- snd_mem_proc->read_proc = snd_mem_proc_read;
-#ifdef CONFIG_PCI
- snd_mem_proc->write_proc = snd_mem_proc_write;
#endif
+ default:
+ pr_err("snd-malloc: invalid device type %d\n", dmab->dev.type);
}
-#endif
- return 0;
-}
-
-static void __exit snd_mem_exit(void)
-{
- remove_proc_entry(SND_MEM_PROC_FILE, NULL);
- free_all_reserved_pages();
- if (snd_allocated_pages > 0)
- printk(KERN_ERR "snd-malloc: Memory leak? pages not freed = %li\n", snd_allocated_pages);
}
-
-module_init(snd_mem_init)
-module_exit(snd_mem_exit)
-
-
/*
* exports
*/
@@ -672,8 +295,5 @@ EXPORT_SYMBOL(snd_dma_alloc_pages);
EXPORT_SYMBOL(snd_dma_alloc_pages_fallback);
EXPORT_SYMBOL(snd_dma_free_pages);
-EXPORT_SYMBOL(snd_dma_get_reserved_buf);
-EXPORT_SYMBOL(snd_dma_reserve_buf);
-
EXPORT_SYMBOL(snd_malloc_pages);
EXPORT_SYMBOL(snd_free_pages);
diff --git a/sound/core/memory.c b/sound/core/memory.c
index 862d62d2e14..36c0f1a2e18 100644
--- a/sound/core/memory.c
+++ b/sound/core/memory.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
*
* Misc memory accessors
*
@@ -20,9 +20,10 @@
*
*/
-#include <linux/config.h>
+#include <linux/export.h>
#include <asm/io.h>
#include <asm/uaccess.h>
+#include <sound/core.h>
/**
* copy_to_user_fromio - copy data from mmio-space to user-space
@@ -32,7 +33,7 @@
*
* Copies the data from mmio-space to user-space.
*
- * Returns zero if successful, or non-zero on failure.
+ * Return: Zero if successful, or non-zero on failure.
*/
int copy_to_user_fromio(void __user *dst, const volatile void __iomem *src, size_t count)
{
@@ -55,6 +56,8 @@ int copy_to_user_fromio(void __user *dst, const volatile void __iomem *src, size
#endif
}
+EXPORT_SYMBOL(copy_to_user_fromio);
+
/**
* copy_from_user_toio - copy data from user-space to mmio-space
* @dst: the destination pointer on mmio-space
@@ -63,7 +66,7 @@ int copy_to_user_fromio(void __user *dst, const volatile void __iomem *src, size
*
* Copies the data from user-space to mmio-space.
*
- * Returns zero if successful, or non-zero on failure.
+ * Return: Zero if successful, or non-zero on failure.
*/
int copy_from_user_toio(volatile void __iomem *dst, const void __user *src, size_t count)
{
@@ -85,3 +88,5 @@ int copy_from_user_toio(volatile void __iomem *dst, const void __user *src, size
return 0;
#endif
}
+
+EXPORT_SYMBOL(copy_from_user_toio);
diff --git a/sound/core/misc.c b/sound/core/misc.c
index b53e563c09e..30e027ecf4d 100644
--- a/sound/core/misc.c
+++ b/sound/core/misc.c
@@ -1,6 +1,6 @@
/*
* Misc and compatibility things
- * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
*
*
* This program is free software; you can redistribute it and/or modify
@@ -19,13 +19,28 @@
*
*/
-#include <sound/driver.h>
#include <linux/init.h>
-#include <linux/sched.h>
+#include <linux/export.h>
+#include <linux/moduleparam.h>
#include <linux/time.h>
+#include <linux/slab.h>
#include <linux/ioport.h>
#include <sound/core.h>
+#ifdef CONFIG_SND_DEBUG
+
+#ifdef CONFIG_SND_DEBUG_VERBOSE
+#define DEFAULT_DEBUG_LEVEL 2
+#else
+#define DEFAULT_DEBUG_LEVEL 1
+#endif
+
+static int debug = DEFAULT_DEBUG_LEVEL;
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "Debug level (0 = disable)");
+
+#endif /* CONFIG_SND_DEBUG */
+
void release_and_free_resource(struct resource *res)
{
if (res) {
@@ -34,41 +49,105 @@ void release_and_free_resource(struct resource *res)
}
}
+EXPORT_SYMBOL(release_and_free_resource);
+
#ifdef CONFIG_SND_VERBOSE_PRINTK
-void snd_verbose_printk(const char *file, int line, const char *format, ...)
+/* strip the leading path if the given path is absolute */
+static const char *sanity_file_name(const char *path)
+{
+ if (*path == '/')
+ return strrchr(path, '/') + 1;
+ else
+ return path;
+}
+#endif
+
+#if defined(CONFIG_SND_DEBUG) || defined(CONFIG_SND_VERBOSE_PRINTK)
+void __snd_printk(unsigned int level, const char *path, int line,
+ const char *format, ...)
{
va_list args;
-
- if (format[0] == '<' && format[1] >= '0' && format[1] <= '9' && format[2] == '>') {
- char tmp[] = "<0>";
- tmp[1] = format[1];
- printk("%sALSA %s:%d: ", tmp, file, line);
- format += 3;
- } else {
- printk("ALSA %s:%d: ", file, line);
- }
+#ifdef CONFIG_SND_VERBOSE_PRINTK
+ int kern_level;
+ struct va_format vaf;
+ char verbose_fmt[] = KERN_DEFAULT "ALSA %s:%d %pV";
+#endif
+
+#ifdef CONFIG_SND_DEBUG
+ if (debug < level)
+ return;
+#endif
+
va_start(args, format);
+#ifdef CONFIG_SND_VERBOSE_PRINTK
+ vaf.fmt = format;
+ vaf.va = &args;
+
+ kern_level = printk_get_level(format);
+ if (kern_level) {
+ const char *end_of_header = printk_skip_level(format);
+ memcpy(verbose_fmt, format, end_of_header - format);
+ vaf.fmt = end_of_header;
+ } else if (level)
+ memcpy(verbose_fmt, KERN_DEBUG, sizeof(KERN_DEBUG) - 1);
+ printk(verbose_fmt, sanity_file_name(path), line, &vaf);
+
+#else
vprintk(format, args);
+#endif
va_end(args);
}
+EXPORT_SYMBOL_GPL(__snd_printk);
#endif
-#if defined(CONFIG_SND_DEBUG) && defined(CONFIG_SND_VERBOSE_PRINTK)
-void snd_verbose_printd(const char *file, int line, const char *format, ...)
+#ifdef CONFIG_PCI
+#include <linux/pci.h>
+/**
+ * snd_pci_quirk_lookup_id - look up a PCI SSID quirk list
+ * @vendor: PCI SSV id
+ * @device: PCI SSD id
+ * @list: quirk list, terminated by a null entry
+ *
+ * Look through the given quirk list and finds a matching entry
+ * with the same PCI SSID. When subdevice is 0, all subdevice
+ * values may match.
+ *
+ * Returns the matched entry pointer, or NULL if nothing matched.
+ */
+const struct snd_pci_quirk *
+snd_pci_quirk_lookup_id(u16 vendor, u16 device,
+ const struct snd_pci_quirk *list)
{
- va_list args;
-
- if (format[0] == '<' && format[1] >= '0' && format[1] <= '9' && format[2] == '>') {
- char tmp[] = "<0>";
- tmp[1] = format[1];
- printk("%sALSA %s:%d: ", tmp, file, line);
- format += 3;
- } else {
- printk(KERN_DEBUG "ALSA %s:%d: ", file, line);
+ const struct snd_pci_quirk *q;
+
+ for (q = list; q->subvendor; q++) {
+ if (q->subvendor != vendor)
+ continue;
+ if (!q->subdevice ||
+ (device & q->subdevice_mask) == q->subdevice)
+ return q;
}
- va_start(args, format);
- vprintk(format, args);
- va_end(args);
+ return NULL;
+}
+EXPORT_SYMBOL(snd_pci_quirk_lookup_id);
+/**
+ * snd_pci_quirk_lookup - look up a PCI SSID quirk list
+ * @pci: pci_dev handle
+ * @list: quirk list, terminated by a null entry
+ *
+ * Look through the given quirk list and finds a matching entry
+ * with the same PCI SSID. When subdevice is 0, all subdevice
+ * values may match.
+ *
+ * Returns the matched entry pointer, or NULL if nothing matched.
+ */
+const struct snd_pci_quirk *
+snd_pci_quirk_lookup(struct pci_dev *pci, const struct snd_pci_quirk *list)
+{
+ return snd_pci_quirk_lookup_id(pci->subsystem_vendor,
+ pci->subsystem_device,
+ list);
}
+EXPORT_SYMBOL(snd_pci_quirk_lookup);
#endif
diff --git a/sound/core/oss/Makefile b/sound/core/oss/Makefile
index e6d5a045ba2..10a79453245 100644
--- a/sound/core/oss/Makefile
+++ b/sound/core/oss/Makefile
@@ -1,12 +1,13 @@
#
# Makefile for ALSA
-# Copyright (c) 1999 by Jaroslav Kysela <perex@suse.cz>
+# Copyright (c) 1999 by Jaroslav Kysela <perex@perex.cz>
#
snd-mixer-oss-objs := mixer_oss.o
-snd-pcm-oss-objs := pcm_oss.o pcm_plugin.o \
- io.o copy.o linear.o mulaw.o route.o rate.o
+snd-pcm-oss-y := pcm_oss.o
+snd-pcm-oss-$(CONFIG_SND_PCM_OSS_PLUGINS) += pcm_plugin.o \
+ io.o copy.o linear.o mulaw.o route.o rate.o
obj-$(CONFIG_SND_MIXER_OSS) += snd-mixer-oss.o
obj-$(CONFIG_SND_PCM_OSS) += snd-pcm-oss.o
diff --git a/sound/core/oss/copy.c b/sound/core/oss/copy.c
index d6a04c2d5a7..05b58d4fc2b 100644
--- a/sound/core/oss/copy.c
+++ b/sound/core/oss/copy.c
@@ -19,7 +19,6 @@
*
*/
-#include <sound/driver.h>
#include <linux/time.h>
#include <sound/core.h>
#include <sound/pcm.h>
@@ -33,17 +32,18 @@ static snd_pcm_sframes_t copy_transfer(struct snd_pcm_plugin *plugin,
unsigned int channel;
unsigned int nchannels;
- snd_assert(plugin != NULL && src_channels != NULL && dst_channels != NULL, return -ENXIO);
+ if (snd_BUG_ON(!plugin || !src_channels || !dst_channels))
+ return -ENXIO;
if (frames == 0)
return 0;
nchannels = plugin->src_format.channels;
for (channel = 0; channel < nchannels; channel++) {
- snd_assert(src_channels->area.first % 8 == 0 &&
- src_channels->area.step % 8 == 0,
- return -ENXIO);
- snd_assert(dst_channels->area.first % 8 == 0 &&
- dst_channels->area.step % 8 == 0,
- return -ENXIO);
+ if (snd_BUG_ON(src_channels->area.first % 8 ||
+ src_channels->area.step % 8))
+ return -ENXIO;
+ if (snd_BUG_ON(dst_channels->area.first % 8 ||
+ dst_channels->area.step % 8))
+ return -ENXIO;
if (!src_channels->enabled) {
if (dst_channels->wanted)
snd_pcm_area_silence(&dst_channels->area, 0, frames, plugin->dst_format.format);
@@ -67,15 +67,20 @@ int snd_pcm_plugin_build_copy(struct snd_pcm_substream *plug,
struct snd_pcm_plugin *plugin;
int width;
- snd_assert(r_plugin != NULL, return -ENXIO);
+ if (snd_BUG_ON(!r_plugin))
+ return -ENXIO;
*r_plugin = NULL;
- snd_assert(src_format->format == dst_format->format, return -ENXIO);
- snd_assert(src_format->rate == dst_format->rate, return -ENXIO);
- snd_assert(src_format->channels == dst_format->channels, return -ENXIO);
+ if (snd_BUG_ON(src_format->format != dst_format->format))
+ return -ENXIO;
+ if (snd_BUG_ON(src_format->rate != dst_format->rate))
+ return -ENXIO;
+ if (snd_BUG_ON(src_format->channels != dst_format->channels))
+ return -ENXIO;
width = snd_pcm_format_physical_width(src_format->format);
- snd_assert(width > 0, return -ENXIO);
+ if (snd_BUG_ON(width <= 0))
+ return -ENXIO;
err = snd_pcm_plugin_build(plug, "copy", src_format, dst_format,
0, &plugin);
diff --git a/sound/core/oss/io.c b/sound/core/oss/io.c
index 322702e05f3..6faa1d71920 100644
--- a/sound/core/oss/io.c
+++ b/sound/core/oss/io.c
@@ -1,6 +1,6 @@
/*
* PCM I/O Plug-In Interface
- * Copyright (c) 1999 by Jaroslav Kysela <perex@suse.cz>
+ * Copyright (c) 1999 by Jaroslav Kysela <perex@perex.cz>
*
*
* This library is free software; you can redistribute it and/or modify
@@ -19,7 +19,6 @@
*
*/
-#include <sound/driver.h>
#include <linux/time.h>
#include <sound/core.h>
#include <sound/pcm.h>
@@ -40,14 +39,17 @@ static snd_pcm_sframes_t io_playback_transfer(struct snd_pcm_plugin *plugin,
struct snd_pcm_plugin_channel *dst_channels,
snd_pcm_uframes_t frames)
{
- snd_assert(plugin != NULL, return -ENXIO);
- snd_assert(src_channels != NULL, return -ENXIO);
+ if (snd_BUG_ON(!plugin))
+ return -ENXIO;
+ if (snd_BUG_ON(!src_channels))
+ return -ENXIO;
if (plugin->access == SNDRV_PCM_ACCESS_RW_INTERLEAVED) {
return pcm_write(plugin->plug, src_channels->area.addr, frames);
} else {
int channel, channels = plugin->dst_format.channels;
void **bufs = (void**)plugin->extra_data;
- snd_assert(bufs != NULL, return -ENXIO);
+ if (snd_BUG_ON(!bufs))
+ return -ENXIO;
for (channel = 0; channel < channels; channel++) {
if (src_channels[channel].enabled)
bufs[channel] = src_channels[channel].area.addr;
@@ -63,14 +65,17 @@ static snd_pcm_sframes_t io_capture_transfer(struct snd_pcm_plugin *plugin,
struct snd_pcm_plugin_channel *dst_channels,
snd_pcm_uframes_t frames)
{
- snd_assert(plugin != NULL, return -ENXIO);
- snd_assert(dst_channels != NULL, return -ENXIO);
+ if (snd_BUG_ON(!plugin))
+ return -ENXIO;
+ if (snd_BUG_ON(!dst_channels))
+ return -ENXIO;
if (plugin->access == SNDRV_PCM_ACCESS_RW_INTERLEAVED) {
return pcm_read(plugin->plug, dst_channels->area.addr, frames);
} else {
int channel, channels = plugin->dst_format.channels;
void **bufs = (void**)plugin->extra_data;
- snd_assert(bufs != NULL, return -ENXIO);
+ if (snd_BUG_ON(!bufs))
+ return -ENXIO;
for (channel = 0; channel < channels; channel++) {
if (dst_channels[channel].enabled)
bufs[channel] = dst_channels[channel].area.addr;
@@ -108,9 +113,11 @@ int snd_pcm_plugin_build_io(struct snd_pcm_substream *plug,
struct snd_pcm_plugin_format format;
struct snd_pcm_plugin *plugin;
- snd_assert(r_plugin != NULL, return -ENXIO);
+ if (snd_BUG_ON(!r_plugin))
+ return -ENXIO;
*r_plugin = NULL;
- snd_assert(plug != NULL && params != NULL, return -ENXIO);
+ if (snd_BUG_ON(!plug || !params))
+ return -ENXIO;
format.format = params_format(params);
format.rate = params_rate(params);
format.channels = params_channels(params);
diff --git a/sound/core/oss/linear.c b/sound/core/oss/linear.c
index 8cbfa415ce4..2045697f449 100644
--- a/sound/core/oss/linear.c
+++ b/sound/core/oss/linear.c
@@ -1,6 +1,6 @@
/*
* Linear conversion Plug-In
- * Copyright (c) 1999 by Jaroslav Kysela <perex@suse.cz>,
+ * Copyright (c) 1999 by Jaroslav Kysela <perex@perex.cz>,
* Abramo Bagnara <abramo@alsa-project.org>
*
*
@@ -20,7 +20,6 @@
*
*/
-#include <sound/driver.h>
#include <linux/time.h>
#include <sound/core.h>
#include <sound/pcm.h>
@@ -31,19 +30,34 @@
*/
struct linear_priv {
- int conv;
+ int cvt_endian; /* need endian conversion? */
+ unsigned int src_ofs; /* byte offset in source format */
+ unsigned int dst_ofs; /* byte soffset in destination format */
+ unsigned int copy_ofs; /* byte offset in temporary u32 data */
+ unsigned int dst_bytes; /* byte size of destination format */
+ unsigned int copy_bytes; /* bytes to copy per conversion */
+ unsigned int flip; /* MSB flip for signeness, done after endian conv */
};
+static inline void do_convert(struct linear_priv *data,
+ unsigned char *dst, unsigned char *src)
+{
+ unsigned int tmp = 0;
+ unsigned char *p = (unsigned char *)&tmp;
+
+ memcpy(p + data->copy_ofs, src + data->src_ofs, data->copy_bytes);
+ if (data->cvt_endian)
+ tmp = swab32(tmp);
+ tmp ^= data->flip;
+ memcpy(dst, p + data->dst_ofs, data->dst_bytes);
+}
+
static void convert(struct snd_pcm_plugin *plugin,
const struct snd_pcm_plugin_channel *src_channels,
struct snd_pcm_plugin_channel *dst_channels,
snd_pcm_uframes_t frames)
{
-#define CONV_LABELS
-#include "plugin_ops.h"
-#undef CONV_LABELS
struct linear_priv *data = (struct linear_priv *)plugin->extra_data;
- void *conv = conv_labels[data->conv];
int channel;
int nchannels = plugin->src_format.channels;
for (channel = 0; channel < nchannels; ++channel) {
@@ -64,11 +78,7 @@ static void convert(struct snd_pcm_plugin *plugin,
dst_step = dst_channels[channel].area.step / 8;
frames1 = frames;
while (frames1-- > 0) {
- goto *conv;
-#define CONV_END after
-#include "plugin_ops.h"
-#undef CONV_END
- after:
+ do_convert(data, dst, src);
src += src_step;
dst += dst_step;
}
@@ -80,22 +90,20 @@ static snd_pcm_sframes_t linear_transfer(struct snd_pcm_plugin *plugin,
struct snd_pcm_plugin_channel *dst_channels,
snd_pcm_uframes_t frames)
{
- struct linear_priv *data;
-
- snd_assert(plugin != NULL && src_channels != NULL && dst_channels != NULL, return -ENXIO);
- data = (struct linear_priv *)plugin->extra_data;
+ if (snd_BUG_ON(!plugin || !src_channels || !dst_channels))
+ return -ENXIO;
if (frames == 0)
return 0;
#ifdef CONFIG_SND_DEBUG
{
unsigned int channel;
for (channel = 0; channel < plugin->src_format.channels; channel++) {
- snd_assert(src_channels[channel].area.first % 8 == 0 &&
- src_channels[channel].area.step % 8 == 0,
- return -ENXIO);
- snd_assert(dst_channels[channel].area.first % 8 == 0 &&
- dst_channels[channel].area.step % 8 == 0,
- return -ENXIO);
+ if (snd_BUG_ON(src_channels[channel].area.first % 8 ||
+ src_channels[channel].area.step % 8))
+ return -ENXIO;
+ if (snd_BUG_ON(dst_channels[channel].area.first % 8 ||
+ dst_channels[channel].area.step % 8))
+ return -ENXIO;
}
}
#endif
@@ -103,29 +111,37 @@ static snd_pcm_sframes_t linear_transfer(struct snd_pcm_plugin *plugin,
return frames;
}
-int conv_index(int src_format, int dst_format)
+static void init_data(struct linear_priv *data,
+ snd_pcm_format_t src_format, snd_pcm_format_t dst_format)
{
- int src_endian, dst_endian, sign, src_width, dst_width;
-
- sign = (snd_pcm_format_signed(src_format) !=
- snd_pcm_format_signed(dst_format));
-#ifdef SNDRV_LITTLE_ENDIAN
- src_endian = snd_pcm_format_big_endian(src_format);
- dst_endian = snd_pcm_format_big_endian(dst_format);
-#else
- src_endian = snd_pcm_format_little_endian(src_format);
- dst_endian = snd_pcm_format_little_endian(dst_format);
-#endif
+ int src_le, dst_le, src_bytes, dst_bytes;
- if (src_endian < 0)
- src_endian = 0;
- if (dst_endian < 0)
- dst_endian = 0;
+ src_bytes = snd_pcm_format_width(src_format) / 8;
+ dst_bytes = snd_pcm_format_width(dst_format) / 8;
+ src_le = snd_pcm_format_little_endian(src_format) > 0;
+ dst_le = snd_pcm_format_little_endian(dst_format) > 0;
- src_width = snd_pcm_format_width(src_format) / 8 - 1;
- dst_width = snd_pcm_format_width(dst_format) / 8 - 1;
-
- return src_width * 32 + src_endian * 16 + sign * 8 + dst_width * 2 + dst_endian;
+ data->dst_bytes = dst_bytes;
+ data->cvt_endian = src_le != dst_le;
+ data->copy_bytes = src_bytes < dst_bytes ? src_bytes : dst_bytes;
+ if (src_le) {
+ data->copy_ofs = 4 - data->copy_bytes;
+ data->src_ofs = src_bytes - data->copy_bytes;
+ } else
+ data->src_ofs = snd_pcm_format_physical_width(src_format) / 8 -
+ src_bytes;
+ if (dst_le)
+ data->dst_ofs = 4 - data->dst_bytes;
+ else
+ data->dst_ofs = snd_pcm_format_physical_width(dst_format) / 8 -
+ dst_bytes;
+ if (snd_pcm_format_signed(src_format) !=
+ snd_pcm_format_signed(dst_format)) {
+ if (dst_le)
+ data->flip = (__force u32)cpu_to_le32(0x80000000);
+ else
+ data->flip = (__force u32)cpu_to_be32(0x80000000);
+ }
}
int snd_pcm_plugin_build_linear(struct snd_pcm_substream *plug,
@@ -137,13 +153,17 @@ int snd_pcm_plugin_build_linear(struct snd_pcm_substream *plug,
struct linear_priv *data;
struct snd_pcm_plugin *plugin;
- snd_assert(r_plugin != NULL, return -ENXIO);
+ if (snd_BUG_ON(!r_plugin))
+ return -ENXIO;
*r_plugin = NULL;
- snd_assert(src_format->rate == dst_format->rate, return -ENXIO);
- snd_assert(src_format->channels == dst_format->channels, return -ENXIO);
- snd_assert(snd_pcm_format_linear(src_format->format) &&
- snd_pcm_format_linear(dst_format->format), return -ENXIO);
+ if (snd_BUG_ON(src_format->rate != dst_format->rate))
+ return -ENXIO;
+ if (snd_BUG_ON(src_format->channels != dst_format->channels))
+ return -ENXIO;
+ if (snd_BUG_ON(!snd_pcm_format_linear(src_format->format) ||
+ !snd_pcm_format_linear(dst_format->format)))
+ return -ENXIO;
err = snd_pcm_plugin_build(plug, "linear format conversion",
src_format, dst_format,
@@ -151,7 +171,7 @@ int snd_pcm_plugin_build_linear(struct snd_pcm_substream *plug,
if (err < 0)
return err;
data = (struct linear_priv *)plugin->extra_data;
- data->conv = conv_index(src_format->format, dst_format->format);
+ init_data(data, src_format->format, dst_format->format);
plugin->transfer = linear_transfer;
*r_plugin = plugin;
return 0;
diff --git a/sound/core/oss/mixer_oss.c b/sound/core/oss/mixer_oss.c
index f08e65a2bff..5e6349f00ec 100644
--- a/sound/core/oss/mixer_oss.c
+++ b/sound/core/oss/mixer_oss.c
@@ -1,6 +1,6 @@
/*
* OSS emulation layer for the mixer interface
- * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
*
*
* This program is free software; you can redistribute it and/or modify
@@ -19,12 +19,11 @@
*
*/
-#include <sound/driver.h>
#include <linux/init.h>
-#include <linux/smp_lock.h>
#include <linux/slab.h>
#include <linux/time.h>
#include <linux/string.h>
+#include <linux/module.h>
#include <sound/core.h>
#include <sound/minors.h>
#include <sound/control.h>
@@ -34,7 +33,7 @@
#define OSS_ALSAEMULVER _SIOR ('M', 249, int)
-MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
+MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
MODULE_DESCRIPTION("Mixer OSS emulation for ALSA.");
MODULE_LICENSE("GPL");
MODULE_ALIAS_SNDRV_MINOR(SNDRV_MINOR_OSS_MIXER);
@@ -45,18 +44,27 @@ static int snd_mixer_oss_open(struct inode *inode, struct file *file)
struct snd_mixer_oss_file *fmixer;
int err;
+ err = nonseekable_open(inode, file);
+ if (err < 0)
+ return err;
+
card = snd_lookup_oss_minor_data(iminor(inode),
SNDRV_OSS_DEVICE_TYPE_MIXER);
if (card == NULL)
return -ENODEV;
- if (card->mixer_oss == NULL)
+ if (card->mixer_oss == NULL) {
+ snd_card_unref(card);
return -ENODEV;
+ }
err = snd_card_file_add(card, file);
- if (err < 0)
+ if (err < 0) {
+ snd_card_unref(card);
return err;
+ }
fmixer = kzalloc(sizeof(*fmixer), GFP_KERNEL);
if (fmixer == NULL) {
snd_card_file_remove(card, file);
+ snd_card_unref(card);
return -ENOMEM;
}
fmixer->card = card;
@@ -65,8 +73,10 @@ static int snd_mixer_oss_open(struct inode *inode, struct file *file)
if (!try_module_get(card->module)) {
kfree(fmixer);
snd_card_file_remove(card, file);
+ snd_card_unref(card);
return -EFAULT;
}
+ snd_card_unref(card);
return 0;
}
@@ -75,7 +85,7 @@ static int snd_mixer_oss_release(struct inode *inode, struct file *file)
struct snd_mixer_oss_file *fmixer;
if (file->private_data) {
- fmixer = (struct snd_mixer_oss_file *) file->private_data;
+ fmixer = file->private_data;
module_put(fmixer->card->module);
snd_card_file_remove(fmixer->card, file);
kfree(fmixer);
@@ -188,9 +198,10 @@ static int snd_mixer_oss_get_recsrc(struct snd_mixer_oss_file *fmixer)
return -EIO;
if (mixer->put_recsrc && mixer->get_recsrc) { /* exclusive */
int err;
- if ((err = mixer->get_recsrc(fmixer, &result)) < 0)
+ unsigned int index;
+ if ((err = mixer->get_recsrc(fmixer, &index)) < 0)
return err;
- result = 1 << result;
+ result = 1 << index;
} else {
struct snd_mixer_oss_slot *pslot;
int chn;
@@ -212,6 +223,7 @@ static int snd_mixer_oss_set_recsrc(struct snd_mixer_oss_file *fmixer, int recsr
struct snd_mixer_oss *mixer = fmixer->mixer;
struct snd_mixer_oss_slot *pslot;
int chn, active;
+ unsigned int index;
int result = 0;
if (mixer == NULL)
@@ -220,8 +232,8 @@ static int snd_mixer_oss_set_recsrc(struct snd_mixer_oss_file *fmixer, int recsr
if (recsrc & ~mixer->oss_recsrc)
recsrc &= ~mixer->oss_recsrc;
mixer->put_recsrc(fmixer, ffz(~recsrc));
- mixer->get_recsrc(fmixer, &result);
- result = 1 << result;
+ mixer->get_recsrc(fmixer, &index);
+ result = 1 << index;
}
for (chn = 0; chn < 31; chn++) {
pslot = &mixer->slots[chn];
@@ -259,8 +271,10 @@ static int snd_mixer_oss_get_volume(struct snd_mixer_oss_file *fmixer, int slot)
result = pslot->get_volume(fmixer, pslot, &left, &right);
if (!pslot->stereo)
right = left;
- snd_assert(left >= 0 && left <= 100, return -EIO);
- snd_assert(right >= 0 && right <= 100, return -EIO);
+ if (snd_BUG_ON(left < 0 || left > 100))
+ return -EIO;
+ if (snd_BUG_ON(right < 0 || right > 100))
+ return -EIO;
if (result >= 0) {
pslot->volume[0] = left;
pslot->volume[1] = right;
@@ -300,7 +314,8 @@ static int snd_mixer_oss_ioctl1(struct snd_mixer_oss_file *fmixer, unsigned int
int __user *p = argp;
int tmp;
- snd_assert(fmixer != NULL, return -ENXIO);
+ if (snd_BUG_ON(!fmixer))
+ return -ENXIO;
if (((cmd >> 8) & 0xff) == 'M') {
switch (cmd) {
case SOUND_MIXER_INFO:
@@ -363,14 +378,15 @@ static int snd_mixer_oss_ioctl1(struct snd_mixer_oss_file *fmixer, unsigned int
static long snd_mixer_oss_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
- return snd_mixer_oss_ioctl1((struct snd_mixer_oss_file *) file->private_data, cmd, arg);
+ return snd_mixer_oss_ioctl1(file->private_data, cmd, arg);
}
int snd_mixer_oss_ioctl_card(struct snd_card *card, unsigned int cmd, unsigned long arg)
{
struct snd_mixer_oss_file fmixer;
- snd_assert(card != NULL, return -ENXIO);
+ if (snd_BUG_ON(!card))
+ return -ENXIO;
if (card->mixer_oss == NULL)
return -ENXIO;
memset(&fmixer, 0, sizeof(fmixer));
@@ -390,11 +406,12 @@ int snd_mixer_oss_ioctl_card(struct snd_card *card, unsigned int cmd, unsigned l
* REGISTRATION PART
*/
-static struct file_operations snd_mixer_oss_f_ops =
+static const struct file_operations snd_mixer_oss_f_ops =
{
.owner = THIS_MODULE,
.open = snd_mixer_oss_open,
.release = snd_mixer_oss_release,
+ .llseek = no_llseek,
.unlocked_ioctl = snd_mixer_oss_ioctl,
.compat_ioctl = snd_mixer_oss_ioctl_compat,
};
@@ -490,7 +507,7 @@ static struct snd_kcontrol *snd_mixer_oss_test_id(struct snd_mixer_oss *mixer, c
memset(&id, 0, sizeof(id));
id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
- strcpy(id.name, name);
+ strlcpy(id.name, name, sizeof(id.name));
id.index = index;
return snd_ctl_find_id(card, &id);
}
@@ -575,7 +592,7 @@ static int snd_mixer_oss_get_volume1(struct snd_mixer_oss_file *fmixer,
struct snd_mixer_oss_slot *pslot,
int *left, int *right)
{
- struct slot *slot = (struct slot *)pslot->private_data;
+ struct slot *slot = pslot->private_data;
*left = *right = 100;
if (slot->present & SNDRV_MIXER_OSS_PRESENT_PVOLUME) {
@@ -611,8 +628,10 @@ static void snd_mixer_oss_put_volume1_vol(struct snd_mixer_oss_file *fmixer,
if (numid == ID_UNKNOWN)
return;
down_read(&card->controls_rwsem);
- if ((kctl = snd_ctl_find_numid(card, numid)) == NULL)
+ if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) {
+ up_read(&card->controls_rwsem);
return;
+ }
uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
if (uinfo == NULL || uctl == NULL)
@@ -651,7 +670,7 @@ static void snd_mixer_oss_put_volume1_sw(struct snd_mixer_oss_file *fmixer,
return;
down_read(&card->controls_rwsem);
if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) {
- up_read(&fmixer->card->controls_rwsem);
+ up_read(&card->controls_rwsem);
return;
}
uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
@@ -684,12 +703,15 @@ static int snd_mixer_oss_put_volume1(struct snd_mixer_oss_file *fmixer,
struct snd_mixer_oss_slot *pslot,
int left, int right)
{
- struct slot *slot = (struct slot *)pslot->private_data;
+ struct slot *slot = pslot->private_data;
if (slot->present & SNDRV_MIXER_OSS_PRESENT_PVOLUME) {
snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PVOLUME], left, right);
if (slot->present & SNDRV_MIXER_OSS_PRESENT_CVOLUME)
snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CVOLUME], left, right);
+ } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_CVOLUME) {
+ snd_mixer_oss_put_volume1_vol(fmixer, pslot,
+ slot->numid[SNDRV_MIXER_OSS_ITEM_CVOLUME], left, right);
} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GVOLUME) {
snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GVOLUME], left, right);
} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GLOBAL) {
@@ -698,19 +720,27 @@ static int snd_mixer_oss_put_volume1(struct snd_mixer_oss_file *fmixer,
if (left || right) {
if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH)
snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0);
+ if (slot->present & SNDRV_MIXER_OSS_PRESENT_CSWITCH)
+ snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], left, right, 0);
if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH)
snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0);
if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE)
snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1);
+ if (slot->present & SNDRV_MIXER_OSS_PRESENT_CROUTE)
+ snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], left, right, 1);
if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE)
snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1);
} else {
if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH) {
snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0);
+ } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_CSWITCH) {
+ snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], left, right, 0);
} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH) {
snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0);
} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE) {
snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1);
+ } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_CROUTE) {
+ snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], left, right, 1);
} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE) {
snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1);
}
@@ -722,7 +752,7 @@ static int snd_mixer_oss_get_recsrc1_sw(struct snd_mixer_oss_file *fmixer,
struct snd_mixer_oss_slot *pslot,
int *active)
{
- struct slot *slot = (struct slot *)pslot->private_data;
+ struct slot *slot = pslot->private_data;
int left, right;
left = right = 1;
@@ -735,7 +765,7 @@ static int snd_mixer_oss_get_recsrc1_route(struct snd_mixer_oss_file *fmixer,
struct snd_mixer_oss_slot *pslot,
int *active)
{
- struct slot *slot = (struct slot *)pslot->private_data;
+ struct slot *slot = pslot->private_data;
int left, right;
left = right = 1;
@@ -748,7 +778,7 @@ static int snd_mixer_oss_put_recsrc1_sw(struct snd_mixer_oss_file *fmixer,
struct snd_mixer_oss_slot *pslot,
int active)
{
- struct slot *slot = (struct slot *)pslot->private_data;
+ struct slot *slot = pslot->private_data;
snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], active, active, 0);
return 0;
@@ -758,7 +788,7 @@ static int snd_mixer_oss_put_recsrc1_route(struct snd_mixer_oss_file *fmixer,
struct snd_mixer_oss_slot *pslot,
int active)
{
- struct slot *slot = (struct slot *)pslot->private_data;
+ struct slot *slot = pslot->private_data;
snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], active, active, 1);
return 0;
@@ -779,7 +809,7 @@ static int snd_mixer_oss_get_recsrc2(struct snd_mixer_oss_file *fmixer, unsigned
uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
if (uinfo == NULL || uctl == NULL) {
err = -ENOMEM;
- goto __unlock;
+ goto __free_only;
}
down_read(&card->controls_rwsem);
kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0);
@@ -795,7 +825,7 @@ static int snd_mixer_oss_get_recsrc2(struct snd_mixer_oss_file *fmixer, unsigned
if (!(mixer->mask_recsrc & (1 << idx)))
continue;
pslot = &mixer->slots[idx];
- slot = (struct slot *)pslot->private_data;
+ slot = pslot->private_data;
if (slot->signature != SNDRV_MIXER_OSS_SIGNATURE)
continue;
if (!(slot->present & SNDRV_MIXER_OSS_PRESENT_CAPTURE))
@@ -808,6 +838,7 @@ static int snd_mixer_oss_get_recsrc2(struct snd_mixer_oss_file *fmixer, unsigned
err = 0;
__unlock:
up_read(&card->controls_rwsem);
+ __free_only:
kfree(uctl);
kfree(uinfo);
return err;
@@ -829,7 +860,7 @@ static int snd_mixer_oss_put_recsrc2(struct snd_mixer_oss_file *fmixer, unsigned
uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
if (uinfo == NULL || uctl == NULL) {
err = -ENOMEM;
- goto __unlock;
+ goto __free_only;
}
down_read(&card->controls_rwsem);
kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0);
@@ -843,7 +874,7 @@ static int snd_mixer_oss_put_recsrc2(struct snd_mixer_oss_file *fmixer, unsigned
if (!(mixer->mask_recsrc & (1 << idx)))
continue;
pslot = &mixer->slots[idx];
- slot = (struct slot *)pslot->private_data;
+ slot = pslot->private_data;
if (slot->signature != SNDRV_MIXER_OSS_SIGNATURE)
continue;
if (!(slot->present & SNDRV_MIXER_OSS_PRESENT_CAPTURE))
@@ -862,6 +893,7 @@ static int snd_mixer_oss_put_recsrc2(struct snd_mixer_oss_file *fmixer, unsigned
err = 0;
__unlock:
up_read(&card->controls_rwsem);
+ __free_only:
kfree(uctl);
kfree(uinfo);
return err;
@@ -907,7 +939,7 @@ static int snd_mixer_oss_build_test(struct snd_mixer_oss *mixer, struct slot *sl
static void snd_mixer_oss_slot_free(struct snd_mixer_oss_slot *chn)
{
- struct slot *p = (struct slot *)chn->private_data;
+ struct slot *p = chn->private_data;
if (p) {
if (p->allocated && p->assigned) {
kfree(p->assigned->name);
@@ -926,6 +958,68 @@ static void mixer_slot_clear(struct snd_mixer_oss_slot *rslot)
rslot->number = idx;
}
+/* In a separate function to keep gcc 3.2 happy - do NOT merge this in
+ snd_mixer_oss_build_input! */
+static int snd_mixer_oss_build_test_all(struct snd_mixer_oss *mixer,
+ struct snd_mixer_oss_assign_table *ptr,
+ struct slot *slot)
+{
+ char str[64];
+ int err;
+
+ err = snd_mixer_oss_build_test(mixer, slot, ptr->name, ptr->index,
+ SNDRV_MIXER_OSS_ITEM_GLOBAL);
+ if (err)
+ return err;
+ sprintf(str, "%s Switch", ptr->name);
+ err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
+ SNDRV_MIXER_OSS_ITEM_GSWITCH);
+ if (err)
+ return err;
+ sprintf(str, "%s Route", ptr->name);
+ err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
+ SNDRV_MIXER_OSS_ITEM_GROUTE);
+ if (err)
+ return err;
+ sprintf(str, "%s Volume", ptr->name);
+ err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
+ SNDRV_MIXER_OSS_ITEM_GVOLUME);
+ if (err)
+ return err;
+ sprintf(str, "%s Playback Switch", ptr->name);
+ err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
+ SNDRV_MIXER_OSS_ITEM_PSWITCH);
+ if (err)
+ return err;
+ sprintf(str, "%s Playback Route", ptr->name);
+ err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
+ SNDRV_MIXER_OSS_ITEM_PROUTE);
+ if (err)
+ return err;
+ sprintf(str, "%s Playback Volume", ptr->name);
+ err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
+ SNDRV_MIXER_OSS_ITEM_PVOLUME);
+ if (err)
+ return err;
+ sprintf(str, "%s Capture Switch", ptr->name);
+ err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
+ SNDRV_MIXER_OSS_ITEM_CSWITCH);
+ if (err)
+ return err;
+ sprintf(str, "%s Capture Route", ptr->name);
+ err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
+ SNDRV_MIXER_OSS_ITEM_CROUTE);
+ if (err)
+ return err;
+ sprintf(str, "%s Capture Volume", ptr->name);
+ err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
+ SNDRV_MIXER_OSS_ITEM_CVOLUME);
+ if (err)
+ return err;
+
+ return 0;
+}
+
/*
* build an OSS mixer element.
* ptr_allocated means the entry is dynamically allocated (change via proc file).
@@ -945,58 +1039,21 @@ static int snd_mixer_oss_build_input(struct snd_mixer_oss *mixer, struct snd_mix
memset(&slot, 0, sizeof(slot));
memset(slot.numid, 0xff, sizeof(slot.numid)); /* ID_UNKNOWN */
- if (snd_mixer_oss_build_test(mixer, &slot, ptr->name, ptr->index,
- SNDRV_MIXER_OSS_ITEM_GLOBAL))
- return 0;
- sprintf(str, "%s Switch", ptr->name);
- if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
- SNDRV_MIXER_OSS_ITEM_GSWITCH))
- return 0;
- sprintf(str, "%s Route", ptr->name);
- if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
- SNDRV_MIXER_OSS_ITEM_GROUTE))
- return 0;
- sprintf(str, "%s Volume", ptr->name);
- if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
- SNDRV_MIXER_OSS_ITEM_GVOLUME))
- return 0;
- sprintf(str, "%s Playback Switch", ptr->name);
- if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
- SNDRV_MIXER_OSS_ITEM_PSWITCH))
- return 0;
- sprintf(str, "%s Playback Route", ptr->name);
- if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
- SNDRV_MIXER_OSS_ITEM_PROUTE))
- return 0;
- sprintf(str, "%s Playback Volume", ptr->name);
- if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
- SNDRV_MIXER_OSS_ITEM_PVOLUME))
- return 0;
- sprintf(str, "%s Capture Switch", ptr->name);
- if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
- SNDRV_MIXER_OSS_ITEM_CSWITCH))
- return 0;
- sprintf(str, "%s Capture Route", ptr->name);
- if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
- SNDRV_MIXER_OSS_ITEM_CROUTE))
- return 0;
- sprintf(str, "%s Capture Volume", ptr->name);
- if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
- SNDRV_MIXER_OSS_ITEM_CVOLUME))
+ if (snd_mixer_oss_build_test_all(mixer, ptr, &slot))
return 0;
down_read(&mixer->card->controls_rwsem);
if (ptr->index == 0 && (kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0)) != NULL) {
struct snd_ctl_elem_info *uinfo;
- uinfo = kmalloc(sizeof(*uinfo), GFP_KERNEL);
+ uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
if (! uinfo) {
up_read(&mixer->card->controls_rwsem);
return -ENOMEM;
}
- memset(uinfo, 0, sizeof(*uinfo));
if (kctl->info(kctl, uinfo)) {
up_read(&mixer->card->controls_rwsem);
+ kfree(uinfo);
return 0;
}
strcpy(str, ptr->name);
@@ -1012,6 +1069,7 @@ static int snd_mixer_oss_build_input(struct snd_mixer_oss *mixer, struct snd_mix
uinfo->value.enumerated.item = slot.capture_item;
if (kctl->info(kctl, uinfo)) {
up_read(&mixer->card->controls_rwsem);
+ kfree(uinfo);
return 0;
}
if (!strcmp(uinfo->value.enumerated.name, str)) {
@@ -1024,7 +1082,7 @@ static int snd_mixer_oss_build_input(struct snd_mixer_oss *mixer, struct snd_mix
}
up_read(&mixer->card->controls_rwsem);
if (slot.present != 0) {
- pslot = (struct slot *)kmalloc(sizeof(slot), GFP_KERNEL);
+ pslot = kmalloc(sizeof(slot), GFP_KERNEL);
if (! pslot)
return -ENOMEM;
*pslot = slot;
@@ -1095,7 +1153,7 @@ static void snd_mixer_oss_proc_read(struct snd_info_entry *entry,
struct snd_mixer_oss *mixer = entry->private_data;
int i;
- down(&mixer->reg_mutex);
+ mutex_lock(&mixer->reg_mutex);
for (i = 0; i < SNDRV_OSS_MAX_MIXERS; i++) {
struct slot *p;
@@ -1110,14 +1168,15 @@ static void snd_mixer_oss_proc_read(struct snd_info_entry *entry,
else
snd_iprintf(buffer, "\"\" 0\n");
}
- up(&mixer->reg_mutex);
+ mutex_unlock(&mixer->reg_mutex);
}
static void snd_mixer_oss_proc_write(struct snd_info_entry *entry,
struct snd_info_buffer *buffer)
{
struct snd_mixer_oss *mixer = entry->private_data;
- char line[128], str[32], idxstr[16], *cptr;
+ char line[128], str[32], idxstr[16];
+ const char *cptr;
int ch, idx;
struct snd_mixer_oss_assign_table *tbl;
struct slot *slot;
@@ -1128,24 +1187,25 @@ static void snd_mixer_oss_proc_write(struct snd_info_entry *entry,
if (oss_mixer_names[ch] && strcmp(oss_mixer_names[ch], str) == 0)
break;
if (ch >= SNDRV_OSS_MAX_MIXERS) {
- snd_printk(KERN_ERR "mixer_oss: invalid OSS volume '%s'\n", str);
+ pr_err("ALSA: mixer_oss: invalid OSS volume '%s'\n",
+ str);
continue;
}
cptr = snd_info_get_str(str, cptr, sizeof(str));
if (! *str) {
/* remove the entry */
- down(&mixer->reg_mutex);
+ mutex_lock(&mixer->reg_mutex);
mixer_slot_clear(&mixer->slots[ch]);
- up(&mixer->reg_mutex);
+ mutex_unlock(&mixer->reg_mutex);
continue;
}
snd_info_get_str(idxstr, cptr, sizeof(idxstr));
idx = simple_strtoul(idxstr, NULL, 10);
if (idx >= 0x4000) { /* too big */
- snd_printk(KERN_ERR "mixer_oss: invalid index %d\n", idx);
+ pr_err("ALSA: mixer_oss: invalid index %d\n", idx);
continue;
}
- down(&mixer->reg_mutex);
+ mutex_lock(&mixer->reg_mutex);
slot = (struct slot *)mixer->slots[ch].private_data;
if (slot && slot->assigned &&
slot->assigned->index == idx && ! strcmp(slot->assigned->name, str))
@@ -1153,7 +1213,7 @@ static void snd_mixer_oss_proc_write(struct snd_info_entry *entry,
goto __unlock;
tbl = kmalloc(sizeof(*tbl), GFP_KERNEL);
if (! tbl) {
- snd_printk(KERN_ERR "mixer_oss: no memory\n");
+ pr_err("ALSA: mixer_oss: no memory\n");
goto __unlock;
}
tbl->oss_id = ch;
@@ -1168,7 +1228,7 @@ static void snd_mixer_oss_proc_write(struct snd_info_entry *entry,
kfree(tbl);
}
__unlock:
- up(&mixer->reg_mutex);
+ mutex_unlock(&mixer->reg_mutex);
}
}
@@ -1182,9 +1242,7 @@ static void snd_mixer_oss_proc_init(struct snd_mixer_oss *mixer)
return;
entry->content = SNDRV_INFO_CONTENT_TEXT;
entry->mode = S_IFREG | S_IRUGO | S_IWUSR;
- entry->c.text.read_size = 8192;
entry->c.text.read = snd_mixer_oss_proc_read;
- entry->c.text.write_size = 8192;
entry->c.text.write = snd_mixer_oss_proc_write;
entry->private_data = mixer;
if (snd_info_register(entry) < 0) {
@@ -1196,10 +1254,8 @@ static void snd_mixer_oss_proc_init(struct snd_mixer_oss *mixer)
static void snd_mixer_oss_proc_done(struct snd_mixer_oss *mixer)
{
- if (mixer->proc_entry) {
- snd_info_unregister(mixer->proc_entry);
- mixer->proc_entry = NULL;
- }
+ snd_info_free_entry(mixer->proc_entry);
+ mixer->proc_entry = NULL;
}
#else /* !CONFIG_PROC_FS */
#define snd_mixer_oss_proc_init(mix)
@@ -1217,7 +1273,9 @@ static void snd_mixer_oss_build(struct snd_mixer_oss *mixer)
{ SOUND_MIXER_SYNTH, "FM", 0 }, /* fallback */
{ SOUND_MIXER_SYNTH, "Music", 0 }, /* fallback */
{ SOUND_MIXER_PCM, "PCM", 0 },
- { SOUND_MIXER_SPEAKER, "PC Speaker", 0 },
+ { SOUND_MIXER_SPEAKER, "Beep", 0 },
+ { SOUND_MIXER_SPEAKER, "PC Speaker", 0 }, /* fallback */
+ { SOUND_MIXER_SPEAKER, "Speaker", 0 }, /* fallback */
{ SOUND_MIXER_LINE, "Line", 0 },
{ SOUND_MIXER_MIC, "Mic", 0 },
{ SOUND_MIXER_CD, "CD", 0 },
@@ -1239,6 +1297,8 @@ static void snd_mixer_oss_build(struct snd_mixer_oss *mixer)
{ SOUND_MIXER_DIGITAL3, "Digital", 2 },
{ SOUND_MIXER_PHONEIN, "Phone", 0 },
{ SOUND_MIXER_PHONEOUT, "Master Mono", 0 },
+ { SOUND_MIXER_PHONEOUT, "Speaker", 0 }, /*fallback*/
+ { SOUND_MIXER_PHONEOUT, "Mono", 0 }, /*fallback*/
{ SOUND_MIXER_PHONEOUT, "Phone", 0 }, /* fallback */
{ SOUND_MIXER_VIDEO, "Video", 0 },
{ SOUND_MIXER_RADIO, "Radio", 0 },
@@ -1264,9 +1324,11 @@ static int snd_mixer_oss_free1(void *private)
struct snd_card *card;
int idx;
- snd_assert(mixer != NULL, return -ENXIO);
+ if (!mixer)
+ return 0;
card = mixer->card;
- snd_assert(mixer == card->mixer_oss, return -ENXIO);
+ if (snd_BUG_ON(mixer != card->mixer_oss))
+ return -ENXIO;
card->mixer_oss = NULL;
for (idx = 0; idx < SNDRV_OSS_MAX_MIXERS; idx++) {
struct snd_mixer_oss_slot *chn = &mixer->slots[idx];
@@ -1282,20 +1344,18 @@ static int snd_mixer_oss_notify_handler(struct snd_card *card, int cmd)
struct snd_mixer_oss *mixer;
if (cmd == SND_MIXER_OSS_NOTIFY_REGISTER) {
- char name[128];
int idx, err;
mixer = kcalloc(2, sizeof(*mixer), GFP_KERNEL);
if (mixer == NULL)
return -ENOMEM;
- init_MUTEX(&mixer->reg_mutex);
- sprintf(name, "mixer%i%i", card->number, 0);
+ mutex_init(&mixer->reg_mutex);
if ((err = snd_register_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER,
card, 0,
- &snd_mixer_oss_f_ops, card,
- name)) < 0) {
- snd_printk(KERN_ERR "unable to register OSS mixer device %i:%i\n",
- card->number, 0);
+ &snd_mixer_oss_f_ops, card)) < 0) {
+ dev_err(card->dev,
+ "unable to register OSS mixer device %i:%i\n",
+ card->number, 0);
kfree(mixer);
return err;
}
@@ -1304,7 +1364,8 @@ static int snd_mixer_oss_notify_handler(struct snd_card *card, int cmd)
if (*card->mixername)
strlcpy(mixer->name, card->mixername, sizeof(mixer->name));
else
- strlcpy(mixer->name, name, sizeof(mixer->name));
+ snprintf(mixer->name, sizeof(mixer->name),
+ "mixer%i", card->number);
#ifdef SNDRV_OSS_INFO_DEV_MIXERS
snd_oss_info_register(SNDRV_OSS_INFO_DEV_MIXERS,
card->number,
@@ -1315,21 +1376,19 @@ static int snd_mixer_oss_notify_handler(struct snd_card *card, int cmd)
card->mixer_oss = mixer;
snd_mixer_oss_build(mixer);
snd_mixer_oss_proc_init(mixer);
- } else if (cmd == SND_MIXER_OSS_NOTIFY_DISCONNECT) {
- mixer = card->mixer_oss;
- if (mixer == NULL || !mixer->oss_dev_alloc)
- return 0;
- snd_unregister_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER, mixer->card, 0);
- mixer->oss_dev_alloc = 0;
- } else { /* free */
+ } else {
mixer = card->mixer_oss;
if (mixer == NULL)
return 0;
+ if (mixer->oss_dev_alloc) {
#ifdef SNDRV_OSS_INFO_DEV_MIXERS
- snd_oss_info_unregister(SNDRV_OSS_INFO_DEV_MIXERS, mixer->card->number);
+ snd_oss_info_unregister(SNDRV_OSS_INFO_DEV_MIXERS, mixer->card->number);
#endif
- if (mixer->oss_dev_alloc)
snd_unregister_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER, mixer->card, 0);
+ mixer->oss_dev_alloc = 0;
+ }
+ if (cmd == SND_MIXER_OSS_NOTIFY_DISCONNECT)
+ return 0;
snd_mixer_oss_proc_done(mixer);
return snd_mixer_oss_free1(mixer);
}
diff --git a/sound/core/oss/mulaw.c b/sound/core/oss/mulaw.c
index 14f5578ec7a..7915564bd39 100644
--- a/sound/core/oss/mulaw.c
+++ b/sound/core/oss/mulaw.c
@@ -1,6 +1,6 @@
/*
* Mu-Law conversion Plug-In Interface
- * Copyright (c) 1999 by Jaroslav Kysela <perex@suse.cz>
+ * Copyright (c) 1999 by Jaroslav Kysela <perex@perex.cz>
* Uros Bizjak <uros@kss-loka.si>
*
* Based on reference implementation by Sun Microsystems, Inc.
@@ -21,7 +21,6 @@
*
*/
-#include <sound/driver.h>
#include <linux/time.h>
#include <sound/core.h>
#include <sound/pcm.h>
@@ -146,19 +145,32 @@ typedef void (*mulaw_f)(struct snd_pcm_plugin *plugin,
struct mulaw_priv {
mulaw_f func;
- int conv;
+ int cvt_endian; /* need endian conversion? */
+ unsigned int native_ofs; /* byte offset in native format */
+ unsigned int copy_ofs; /* byte offset in s16 format */
+ unsigned int native_bytes; /* byte size of the native format */
+ unsigned int copy_bytes; /* bytes to copy per conversion */
+ u16 flip; /* MSB flip for signedness, done after endian conversion */
};
+static inline void cvt_s16_to_native(struct mulaw_priv *data,
+ unsigned char *dst, u16 sample)
+{
+ sample ^= data->flip;
+ if (data->cvt_endian)
+ sample = swab16(sample);
+ if (data->native_bytes > data->copy_bytes)
+ memset(dst, 0, data->native_bytes);
+ memcpy(dst + data->native_ofs, (char *)&sample + data->copy_ofs,
+ data->copy_bytes);
+}
+
static void mulaw_decode(struct snd_pcm_plugin *plugin,
const struct snd_pcm_plugin_channel *src_channels,
struct snd_pcm_plugin_channel *dst_channels,
snd_pcm_uframes_t frames)
{
-#define PUT_S16_LABELS
-#include "plugin_ops.h"
-#undef PUT_S16_LABELS
struct mulaw_priv *data = (struct mulaw_priv *)plugin->extra_data;
- void *put = put_s16_labels[data->conv];
int channel;
int nchannels = plugin->src_format.channels;
for (channel = 0; channel < nchannels; ++channel) {
@@ -180,30 +192,33 @@ static void mulaw_decode(struct snd_pcm_plugin *plugin,
frames1 = frames;
while (frames1-- > 0) {
signed short sample = ulaw2linear(*src);
- goto *put;
-#define PUT_S16_END after
-#include "plugin_ops.h"
-#undef PUT_S16_END
- after:
+ cvt_s16_to_native(data, dst, sample);
src += src_step;
dst += dst_step;
}
}
}
+static inline signed short cvt_native_to_s16(struct mulaw_priv *data,
+ unsigned char *src)
+{
+ u16 sample = 0;
+ memcpy((char *)&sample + data->copy_ofs, src + data->native_ofs,
+ data->copy_bytes);
+ if (data->cvt_endian)
+ sample = swab16(sample);
+ sample ^= data->flip;
+ return (signed short)sample;
+}
+
static void mulaw_encode(struct snd_pcm_plugin *plugin,
const struct snd_pcm_plugin_channel *src_channels,
struct snd_pcm_plugin_channel *dst_channels,
snd_pcm_uframes_t frames)
{
-#define GET_S16_LABELS
-#include "plugin_ops.h"
-#undef GET_S16_LABELS
struct mulaw_priv *data = (struct mulaw_priv *)plugin->extra_data;
- void *get = get_s16_labels[data->conv];
int channel;
int nchannels = plugin->src_format.channels;
- signed short sample = 0;
for (channel = 0; channel < nchannels; ++channel) {
char *src;
char *dst;
@@ -222,11 +237,7 @@ static void mulaw_encode(struct snd_pcm_plugin *plugin,
dst_step = dst_channels[channel].area.step / 8;
frames1 = frames;
while (frames1-- > 0) {
- goto *get;
-#define GET_S16_END after
-#include "plugin_ops.h"
-#undef GET_S16_END
- after:
+ signed short sample = cvt_native_to_s16(data, src);
*dst = linear2ulaw(sample);
src += src_step;
dst += dst_step;
@@ -241,19 +252,20 @@ static snd_pcm_sframes_t mulaw_transfer(struct snd_pcm_plugin *plugin,
{
struct mulaw_priv *data;
- snd_assert(plugin != NULL && src_channels != NULL && dst_channels != NULL, return -ENXIO);
+ if (snd_BUG_ON(!plugin || !src_channels || !dst_channels))
+ return -ENXIO;
if (frames == 0)
return 0;
#ifdef CONFIG_SND_DEBUG
{
unsigned int channel;
for (channel = 0; channel < plugin->src_format.channels; channel++) {
- snd_assert(src_channels[channel].area.first % 8 == 0 &&
- src_channels[channel].area.step % 8 == 0,
- return -ENXIO);
- snd_assert(dst_channels[channel].area.first % 8 == 0 &&
- dst_channels[channel].area.step % 8 == 0,
- return -ENXIO);
+ if (snd_BUG_ON(src_channels[channel].area.first % 8 ||
+ src_channels[channel].area.step % 8))
+ return -ENXIO;
+ if (snd_BUG_ON(dst_channels[channel].area.first % 8 ||
+ dst_channels[channel].area.step % 8))
+ return -ENXIO;
}
}
#endif
@@ -262,6 +274,27 @@ static snd_pcm_sframes_t mulaw_transfer(struct snd_pcm_plugin *plugin,
return frames;
}
+static void init_data(struct mulaw_priv *data, snd_pcm_format_t format)
+{
+#ifdef SNDRV_LITTLE_ENDIAN
+ data->cvt_endian = snd_pcm_format_big_endian(format) > 0;
+#else
+ data->cvt_endian = snd_pcm_format_little_endian(format) > 0;
+#endif
+ if (!snd_pcm_format_signed(format))
+ data->flip = 0x8000;
+ data->native_bytes = snd_pcm_format_physical_width(format) / 8;
+ data->copy_bytes = data->native_bytes < 2 ? 1 : 2;
+ if (snd_pcm_format_little_endian(format)) {
+ data->native_ofs = data->native_bytes - data->copy_bytes;
+ data->copy_ofs = 2 - data->copy_bytes;
+ } else {
+ /* S24 in 4bytes need an 1 byte offset */
+ data->native_ofs = data->native_bytes -
+ snd_pcm_format_width(format) / 8;
+ }
+}
+
int snd_pcm_plugin_build_mulaw(struct snd_pcm_substream *plug,
struct snd_pcm_plugin_format *src_format,
struct snd_pcm_plugin_format *dst_format,
@@ -273,11 +306,14 @@ int snd_pcm_plugin_build_mulaw(struct snd_pcm_substream *plug,
struct snd_pcm_plugin_format *format;
mulaw_f func;
- snd_assert(r_plugin != NULL, return -ENXIO);
+ if (snd_BUG_ON(!r_plugin))
+ return -ENXIO;
*r_plugin = NULL;
- snd_assert(src_format->rate == dst_format->rate, return -ENXIO);
- snd_assert(src_format->channels == dst_format->channels, return -ENXIO);
+ if (snd_BUG_ON(src_format->rate != dst_format->rate))
+ return -ENXIO;
+ if (snd_BUG_ON(src_format->channels != dst_format->channels))
+ return -ENXIO;
if (dst_format->format == SNDRV_PCM_FORMAT_MU_LAW) {
format = src_format;
@@ -291,7 +327,8 @@ int snd_pcm_plugin_build_mulaw(struct snd_pcm_substream *plug,
snd_BUG();
return -EINVAL;
}
- snd_assert(snd_pcm_format_linear(format->format) != 0, return -ENXIO);
+ if (snd_BUG_ON(!snd_pcm_format_linear(format->format)))
+ return -ENXIO;
err = snd_pcm_plugin_build(plug, "Mu-Law<->linear conversion",
src_format, dst_format,
@@ -300,8 +337,7 @@ int snd_pcm_plugin_build_mulaw(struct snd_pcm_substream *plug,
return err;
data = (struct mulaw_priv *)plugin->extra_data;
data->func = func;
- data->conv = getput_index(format->format);
- snd_assert(data->conv >= 0 && data->conv < 4*2*2, return -EINVAL);
+ init_data(data, format->format);
plugin->transfer = mulaw_transfer;
*r_plugin = plugin;
return 0;
diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c
index 7fd072392c7..ada69d7a8d7 100644
--- a/sound/core/oss/pcm_oss.c
+++ b/sound/core/oss/pcm_oss.c
@@ -1,6 +1,6 @@
/*
* Digital Audio (PCM) abstract layer / OSS compatible
- * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
*
*
* This program is free software; you can redistribute it and/or modify
@@ -26,13 +26,12 @@
#define OSS_DEBUG
#endif
-#include <sound/driver.h>
#include <linux/init.h>
-#include <linux/smp_lock.h>
#include <linux/slab.h>
#include <linux/time.h>
#include <linux/vmalloc.h>
-#include <linux/moduleparam.h>
+#include <linux/module.h>
+#include <linux/math64.h>
#include <linux/string.h>
#include <sound/core.h>
#include <sound/minors.h>
@@ -42,14 +41,15 @@
#include <sound/info.h>
#include <linux/soundcard.h>
#include <sound/initval.h>
+#include <sound/mixer_oss.h>
#define OSS_ALSAEMULVER _SIOR ('M', 249, int)
-static int dsp_map[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = 0};
+static int dsp_map[SNDRV_CARDS];
static int adsp_map[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = 1};
-static int nonblock_open = 1;
+static bool nonblock_open = 1;
-MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>, Abramo Bagnara <abramo@alsa-project.org>");
+MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>, Abramo Bagnara <abramo@alsa-project.org>");
MODULE_DESCRIPTION("PCM OSS emulation for ALSA.");
MODULE_LICENSE("GPL");
module_param_array(dsp_map, int, NULL, 0444);
@@ -61,7 +61,6 @@ MODULE_PARM_DESC(nonblock_open, "Don't block opening busy PCM devices.");
MODULE_ALIAS_SNDRV_MINOR(SNDRV_MINOR_OSS_PCM);
MODULE_ALIAS_SNDRV_MINOR(SNDRV_MINOR_OSS_PCM1);
-extern int snd_mixer_oss_ioctl_card(struct snd_card *card, unsigned int cmd, unsigned long arg);
static int snd_pcm_oss_get_rate(struct snd_pcm_oss_file *pcm_oss_file);
static int snd_pcm_oss_get_channels(struct snd_pcm_oss_file *pcm_oss_file);
static int snd_pcm_oss_get_format(struct snd_pcm_oss_file *pcm_oss_file);
@@ -78,6 +77,491 @@ static inline void snd_leave_user(mm_segment_t fs)
set_fs(fs);
}
+/*
+ * helper functions to process hw_params
+ */
+static int snd_interval_refine_min(struct snd_interval *i, unsigned int min, int openmin)
+{
+ int changed = 0;
+ if (i->min < min) {
+ i->min = min;
+ i->openmin = openmin;
+ changed = 1;
+ } else if (i->min == min && !i->openmin && openmin) {
+ i->openmin = 1;
+ changed = 1;
+ }
+ if (i->integer) {
+ if (i->openmin) {
+ i->min++;
+ i->openmin = 0;
+ }
+ }
+ if (snd_interval_checkempty(i)) {
+ snd_interval_none(i);
+ return -EINVAL;
+ }
+ return changed;
+}
+
+static int snd_interval_refine_max(struct snd_interval *i, unsigned int max, int openmax)
+{
+ int changed = 0;
+ if (i->max > max) {
+ i->max = max;
+ i->openmax = openmax;
+ changed = 1;
+ } else if (i->max == max && !i->openmax && openmax) {
+ i->openmax = 1;
+ changed = 1;
+ }
+ if (i->integer) {
+ if (i->openmax) {
+ i->max--;
+ i->openmax = 0;
+ }
+ }
+ if (snd_interval_checkempty(i)) {
+ snd_interval_none(i);
+ return -EINVAL;
+ }
+ return changed;
+}
+
+static int snd_interval_refine_set(struct snd_interval *i, unsigned int val)
+{
+ struct snd_interval t;
+ t.empty = 0;
+ t.min = t.max = val;
+ t.openmin = t.openmax = 0;
+ t.integer = 1;
+ return snd_interval_refine(i, &t);
+}
+
+/**
+ * snd_pcm_hw_param_value_min
+ * @params: the hw_params instance
+ * @var: parameter to retrieve
+ * @dir: pointer to the direction (-1,0,1) or NULL
+ *
+ * Return the minimum value for field PAR.
+ */
+static unsigned int
+snd_pcm_hw_param_value_min(const struct snd_pcm_hw_params *params,
+ snd_pcm_hw_param_t var, int *dir)
+{
+ if (hw_is_mask(var)) {
+ if (dir)
+ *dir = 0;
+ return snd_mask_min(hw_param_mask_c(params, var));
+ }
+ if (hw_is_interval(var)) {
+ const struct snd_interval *i = hw_param_interval_c(params, var);
+ if (dir)
+ *dir = i->openmin;
+ return snd_interval_min(i);
+ }
+ return -EINVAL;
+}
+
+/**
+ * snd_pcm_hw_param_value_max
+ * @params: the hw_params instance
+ * @var: parameter to retrieve
+ * @dir: pointer to the direction (-1,0,1) or NULL
+ *
+ * Return the maximum value for field PAR.
+ */
+static unsigned int
+snd_pcm_hw_param_value_max(const struct snd_pcm_hw_params *params,
+ snd_pcm_hw_param_t var, int *dir)
+{
+ if (hw_is_mask(var)) {
+ if (dir)
+ *dir = 0;
+ return snd_mask_max(hw_param_mask_c(params, var));
+ }
+ if (hw_is_interval(var)) {
+ const struct snd_interval *i = hw_param_interval_c(params, var);
+ if (dir)
+ *dir = - (int) i->openmax;
+ return snd_interval_max(i);
+ }
+ return -EINVAL;
+}
+
+static int _snd_pcm_hw_param_mask(struct snd_pcm_hw_params *params,
+ snd_pcm_hw_param_t var,
+ const struct snd_mask *val)
+{
+ int changed;
+ changed = snd_mask_refine(hw_param_mask(params, var), val);
+ if (changed) {
+ params->cmask |= 1 << var;
+ params->rmask |= 1 << var;
+ }
+ return changed;
+}
+
+static int snd_pcm_hw_param_mask(struct snd_pcm_substream *pcm,
+ struct snd_pcm_hw_params *params,
+ snd_pcm_hw_param_t var,
+ const struct snd_mask *val)
+{
+ int changed = _snd_pcm_hw_param_mask(params, var, val);
+ if (changed < 0)
+ return changed;
+ if (params->rmask) {
+ int err = snd_pcm_hw_refine(pcm, params);
+ if (err < 0)
+ return err;
+ }
+ return 0;
+}
+
+static int _snd_pcm_hw_param_min(struct snd_pcm_hw_params *params,
+ snd_pcm_hw_param_t var, unsigned int val,
+ int dir)
+{
+ int changed;
+ int open = 0;
+ if (dir) {
+ if (dir > 0) {
+ open = 1;
+ } else if (dir < 0) {
+ if (val > 0) {
+ open = 1;
+ val--;
+ }
+ }
+ }
+ if (hw_is_mask(var))
+ changed = snd_mask_refine_min(hw_param_mask(params, var),
+ val + !!open);
+ else if (hw_is_interval(var))
+ changed = snd_interval_refine_min(hw_param_interval(params, var),
+ val, open);
+ else
+ return -EINVAL;
+ if (changed) {
+ params->cmask |= 1 << var;
+ params->rmask |= 1 << var;
+ }
+ return changed;
+}
+
+/**
+ * snd_pcm_hw_param_min
+ * @pcm: PCM instance
+ * @params: the hw_params instance
+ * @var: parameter to retrieve
+ * @val: minimal value
+ * @dir: pointer to the direction (-1,0,1) or NULL
+ *
+ * Inside configuration space defined by PARAMS remove from PAR all
+ * values < VAL. Reduce configuration space accordingly.
+ * Return new minimum or -EINVAL if the configuration space is empty
+ */
+static int snd_pcm_hw_param_min(struct snd_pcm_substream *pcm,
+ struct snd_pcm_hw_params *params,
+ snd_pcm_hw_param_t var, unsigned int val,
+ int *dir)
+{
+ int changed = _snd_pcm_hw_param_min(params, var, val, dir ? *dir : 0);
+ if (changed < 0)
+ return changed;
+ if (params->rmask) {
+ int err = snd_pcm_hw_refine(pcm, params);
+ if (err < 0)
+ return err;
+ }
+ return snd_pcm_hw_param_value_min(params, var, dir);
+}
+
+static int _snd_pcm_hw_param_max(struct snd_pcm_hw_params *params,
+ snd_pcm_hw_param_t var, unsigned int val,
+ int dir)
+{
+ int changed;
+ int open = 0;
+ if (dir) {
+ if (dir < 0) {
+ open = 1;
+ } else if (dir > 0) {
+ open = 1;
+ val++;
+ }
+ }
+ if (hw_is_mask(var)) {
+ if (val == 0 && open) {
+ snd_mask_none(hw_param_mask(params, var));
+ changed = -EINVAL;
+ } else
+ changed = snd_mask_refine_max(hw_param_mask(params, var),
+ val - !!open);
+ } else if (hw_is_interval(var))
+ changed = snd_interval_refine_max(hw_param_interval(params, var),
+ val, open);
+ else
+ return -EINVAL;
+ if (changed) {
+ params->cmask |= 1 << var;
+ params->rmask |= 1 << var;
+ }
+ return changed;
+}
+
+/**
+ * snd_pcm_hw_param_max
+ * @pcm: PCM instance
+ * @params: the hw_params instance
+ * @var: parameter to retrieve
+ * @val: maximal value
+ * @dir: pointer to the direction (-1,0,1) or NULL
+ *
+ * Inside configuration space defined by PARAMS remove from PAR all
+ * values >= VAL + 1. Reduce configuration space accordingly.
+ * Return new maximum or -EINVAL if the configuration space is empty
+ */
+static int snd_pcm_hw_param_max(struct snd_pcm_substream *pcm,
+ struct snd_pcm_hw_params *params,
+ snd_pcm_hw_param_t var, unsigned int val,
+ int *dir)
+{
+ int changed = _snd_pcm_hw_param_max(params, var, val, dir ? *dir : 0);
+ if (changed < 0)
+ return changed;
+ if (params->rmask) {
+ int err = snd_pcm_hw_refine(pcm, params);
+ if (err < 0)
+ return err;
+ }
+ return snd_pcm_hw_param_value_max(params, var, dir);
+}
+
+static int boundary_sub(int a, int adir,
+ int b, int bdir,
+ int *c, int *cdir)
+{
+ adir = adir < 0 ? -1 : (adir > 0 ? 1 : 0);
+ bdir = bdir < 0 ? -1 : (bdir > 0 ? 1 : 0);
+ *c = a - b;
+ *cdir = adir - bdir;
+ if (*cdir == -2) {
+ (*c)--;
+ } else if (*cdir == 2) {
+ (*c)++;
+ }
+ return 0;
+}
+
+static int boundary_lt(unsigned int a, int adir,
+ unsigned int b, int bdir)
+{
+ if (adir < 0) {
+ a--;
+ adir = 1;
+ } else if (adir > 0)
+ adir = 1;
+ if (bdir < 0) {
+ b--;
+ bdir = 1;
+ } else if (bdir > 0)
+ bdir = 1;
+ return a < b || (a == b && adir < bdir);
+}
+
+/* Return 1 if min is nearer to best than max */
+static int boundary_nearer(int min, int mindir,
+ int best, int bestdir,
+ int max, int maxdir)
+{
+ int dmin, dmindir;
+ int dmax, dmaxdir;
+ boundary_sub(best, bestdir, min, mindir, &dmin, &dmindir);
+ boundary_sub(max, maxdir, best, bestdir, &dmax, &dmaxdir);
+ return boundary_lt(dmin, dmindir, dmax, dmaxdir);
+}
+
+/**
+ * snd_pcm_hw_param_near
+ * @pcm: PCM instance
+ * @params: the hw_params instance
+ * @var: parameter to retrieve
+ * @best: value to set
+ * @dir: pointer to the direction (-1,0,1) or NULL
+ *
+ * Inside configuration space defined by PARAMS set PAR to the available value
+ * nearest to VAL. Reduce configuration space accordingly.
+ * This function cannot be called for SNDRV_PCM_HW_PARAM_ACCESS,
+ * SNDRV_PCM_HW_PARAM_FORMAT, SNDRV_PCM_HW_PARAM_SUBFORMAT.
+ * Return the value found.
+ */
+static int snd_pcm_hw_param_near(struct snd_pcm_substream *pcm,
+ struct snd_pcm_hw_params *params,
+ snd_pcm_hw_param_t var, unsigned int best,
+ int *dir)
+{
+ struct snd_pcm_hw_params *save = NULL;
+ int v;
+ unsigned int saved_min;
+ int last = 0;
+ int min, max;
+ int mindir, maxdir;
+ int valdir = dir ? *dir : 0;
+ /* FIXME */
+ if (best > INT_MAX)
+ best = INT_MAX;
+ min = max = best;
+ mindir = maxdir = valdir;
+ if (maxdir > 0)
+ maxdir = 0;
+ else if (maxdir == 0)
+ maxdir = -1;
+ else {
+ maxdir = 1;
+ max--;
+ }
+ save = kmalloc(sizeof(*save), GFP_KERNEL);
+ if (save == NULL)
+ return -ENOMEM;
+ *save = *params;
+ saved_min = min;
+ min = snd_pcm_hw_param_min(pcm, params, var, min, &mindir);
+ if (min >= 0) {
+ struct snd_pcm_hw_params *params1;
+ if (max < 0)
+ goto _end;
+ if ((unsigned int)min == saved_min && mindir == valdir)
+ goto _end;
+ params1 = kmalloc(sizeof(*params1), GFP_KERNEL);
+ if (params1 == NULL) {
+ kfree(save);
+ return -ENOMEM;
+ }
+ *params1 = *save;
+ max = snd_pcm_hw_param_max(pcm, params1, var, max, &maxdir);
+ if (max < 0) {
+ kfree(params1);
+ goto _end;
+ }
+ if (boundary_nearer(max, maxdir, best, valdir, min, mindir)) {
+ *params = *params1;
+ last = 1;
+ }
+ kfree(params1);
+ } else {
+ *params = *save;
+ max = snd_pcm_hw_param_max(pcm, params, var, max, &maxdir);
+ if (max < 0) {
+ kfree(save);
+ return max;
+ }
+ last = 1;
+ }
+ _end:
+ kfree(save);
+ if (last)
+ v = snd_pcm_hw_param_last(pcm, params, var, dir);
+ else
+ v = snd_pcm_hw_param_first(pcm, params, var, dir);
+ snd_BUG_ON(v < 0);
+ return v;
+}
+
+static int _snd_pcm_hw_param_set(struct snd_pcm_hw_params *params,
+ snd_pcm_hw_param_t var, unsigned int val,
+ int dir)
+{
+ int changed;
+ if (hw_is_mask(var)) {
+ struct snd_mask *m = hw_param_mask(params, var);
+ if (val == 0 && dir < 0) {
+ changed = -EINVAL;
+ snd_mask_none(m);
+ } else {
+ if (dir > 0)
+ val++;
+ else if (dir < 0)
+ val--;
+ changed = snd_mask_refine_set(hw_param_mask(params, var), val);
+ }
+ } else if (hw_is_interval(var)) {
+ struct snd_interval *i = hw_param_interval(params, var);
+ if (val == 0 && dir < 0) {
+ changed = -EINVAL;
+ snd_interval_none(i);
+ } else if (dir == 0)
+ changed = snd_interval_refine_set(i, val);
+ else {
+ struct snd_interval t;
+ t.openmin = 1;
+ t.openmax = 1;
+ t.empty = 0;
+ t.integer = 0;
+ if (dir < 0) {
+ t.min = val - 1;
+ t.max = val;
+ } else {
+ t.min = val;
+ t.max = val+1;
+ }
+ changed = snd_interval_refine(i, &t);
+ }
+ } else
+ return -EINVAL;
+ if (changed) {
+ params->cmask |= 1 << var;
+ params->rmask |= 1 << var;
+ }
+ return changed;
+}
+
+/**
+ * snd_pcm_hw_param_set
+ * @pcm: PCM instance
+ * @params: the hw_params instance
+ * @var: parameter to retrieve
+ * @val: value to set
+ * @dir: pointer to the direction (-1,0,1) or NULL
+ *
+ * Inside configuration space defined by PARAMS remove from PAR all
+ * values != VAL. Reduce configuration space accordingly.
+ * Return VAL or -EINVAL if the configuration space is empty
+ */
+static int snd_pcm_hw_param_set(struct snd_pcm_substream *pcm,
+ struct snd_pcm_hw_params *params,
+ snd_pcm_hw_param_t var, unsigned int val,
+ int dir)
+{
+ int changed = _snd_pcm_hw_param_set(params, var, val, dir);
+ if (changed < 0)
+ return changed;
+ if (params->rmask) {
+ int err = snd_pcm_hw_refine(pcm, params);
+ if (err < 0)
+ return err;
+ }
+ return snd_pcm_hw_param_value(params, var, NULL);
+}
+
+static int _snd_pcm_hw_param_setinteger(struct snd_pcm_hw_params *params,
+ snd_pcm_hw_param_t var)
+{
+ int changed;
+ changed = snd_interval_setinteger(hw_param_interval(params, var));
+ if (changed) {
+ params->cmask |= 1 << var;
+ params->rmask |= 1 << var;
+ }
+ return changed;
+}
+
+/*
+ * plugin
+ */
+
+#ifdef CONFIG_SND_PCM_OSS_PLUGINS
static int snd_pcm_oss_plugin_clear(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
@@ -122,6 +606,7 @@ int snd_pcm_plugin_append(struct snd_pcm_plugin *plugin)
}
return 0;
}
+#endif /* CONFIG_SND_PCM_OSS_PLUGINS */
static long snd_pcm_oss_bytes(struct snd_pcm_substream *substream, long frames)
{
@@ -135,9 +620,7 @@ static long snd_pcm_oss_bytes(struct snd_pcm_substream *substream, long frames)
#else
{
u64 bsize = (u64)runtime->oss.buffer_bytes * (u64)bytes;
- u32 rem;
- div64_32(&bsize, buffer_size, &rem);
- return (long)bsize;
+ return div_u64(bsize, buffer_size);
}
#endif
}
@@ -151,7 +634,29 @@ static long snd_pcm_alsa_frames(struct snd_pcm_substream *substream, long bytes)
return bytes_to_frames(runtime, (buffer_size * bytes) / runtime->oss.buffer_bytes);
}
-static int snd_pcm_oss_format_from(int format)
+static inline
+snd_pcm_uframes_t get_hw_ptr_period(struct snd_pcm_runtime *runtime)
+{
+ return runtime->hw_ptr_interrupt;
+}
+
+/* define extended formats in the recent OSS versions (if any) */
+/* linear formats */
+#define AFMT_S32_LE 0x00001000
+#define AFMT_S32_BE 0x00002000
+#define AFMT_S24_LE 0x00008000
+#define AFMT_S24_BE 0x00010000
+#define AFMT_S24_PACKED 0x00040000
+
+/* other supported formats */
+#define AFMT_FLOAT 0x00004000
+#define AFMT_SPDIF_RAW 0x00020000
+
+/* unsupported formats */
+#define AFMT_AC3 0x00000400
+#define AFMT_VORBIS 0x00000800
+
+static snd_pcm_format_t snd_pcm_oss_format_from(int format)
{
switch (format) {
case AFMT_MU_LAW: return SNDRV_PCM_FORMAT_MU_LAW;
@@ -164,11 +669,18 @@ static int snd_pcm_oss_format_from(int format)
case AFMT_U16_LE: return SNDRV_PCM_FORMAT_U16_LE;
case AFMT_U16_BE: return SNDRV_PCM_FORMAT_U16_BE;
case AFMT_MPEG: return SNDRV_PCM_FORMAT_MPEG;
+ case AFMT_S32_LE: return SNDRV_PCM_FORMAT_S32_LE;
+ case AFMT_S32_BE: return SNDRV_PCM_FORMAT_S32_BE;
+ case AFMT_S24_LE: return SNDRV_PCM_FORMAT_S24_LE;
+ case AFMT_S24_BE: return SNDRV_PCM_FORMAT_S24_BE;
+ case AFMT_S24_PACKED: return SNDRV_PCM_FORMAT_S24_3LE;
+ case AFMT_FLOAT: return SNDRV_PCM_FORMAT_FLOAT;
+ case AFMT_SPDIF_RAW: return SNDRV_PCM_FORMAT_IEC958_SUBFRAME;
default: return SNDRV_PCM_FORMAT_U8;
}
}
-static int snd_pcm_oss_format_to(int format)
+static int snd_pcm_oss_format_to(snd_pcm_format_t format)
{
switch (format) {
case SNDRV_PCM_FORMAT_MU_LAW: return AFMT_MU_LAW;
@@ -181,6 +693,13 @@ static int snd_pcm_oss_format_to(int format)
case SNDRV_PCM_FORMAT_U16_LE: return AFMT_U16_LE;
case SNDRV_PCM_FORMAT_U16_BE: return AFMT_U16_BE;
case SNDRV_PCM_FORMAT_MPEG: return AFMT_MPEG;
+ case SNDRV_PCM_FORMAT_S32_LE: return AFMT_S32_LE;
+ case SNDRV_PCM_FORMAT_S32_BE: return AFMT_S32_BE;
+ case SNDRV_PCM_FORMAT_S24_LE: return AFMT_S24_LE;
+ case SNDRV_PCM_FORMAT_S24_BE: return AFMT_S24_BE;
+ case SNDRV_PCM_FORMAT_S24_3LE: return AFMT_S24_PACKED;
+ case SNDRV_PCM_FORMAT_FLOAT: return AFMT_FLOAT;
+ case SNDRV_PCM_FORMAT_IEC958_SUBFRAME: return AFMT_SPDIF_RAW;
default: return -EINVAL;
}
}
@@ -201,14 +720,13 @@ static int snd_pcm_oss_period_size(struct snd_pcm_substream *substream,
oss_buffer_size = snd_pcm_plug_client_size(substream,
snd_pcm_hw_param_value_max(slave_params, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, NULL)) * oss_frame_size;
oss_buffer_size = 1 << ld2(oss_buffer_size);
- if (atomic_read(&runtime->mmap_count)) {
+ if (atomic_read(&substream->mmap_count)) {
if (oss_buffer_size > runtime->oss.mmap_bytes)
oss_buffer_size = runtime->oss.mmap_bytes;
}
- if (substream->oss.setup &&
- substream->oss.setup->period_size > 16)
- oss_period_size = substream->oss.setup->period_size;
+ if (substream->oss.setup.period_size > 16)
+ oss_period_size = substream->oss.setup.period_size;
else if (runtime->oss.fragshift) {
oss_period_size = 1 << runtime->oss.fragshift;
if (oss_period_size > oss_buffer_size / 2)
@@ -250,10 +768,8 @@ static int snd_pcm_oss_period_size(struct snd_pcm_substream *substream,
oss_periods = oss_buffer_size / oss_period_size;
- if (substream->oss.setup) {
- if (substream->oss.setup->periods > 1)
- oss_periods = substream->oss.setup->periods;
- }
+ if (substream->oss.setup.periods > 1)
+ oss_periods = substream->oss.setup.periods;
s = snd_pcm_hw_param_value_max(slave_params, SNDRV_PCM_HW_PARAM_PERIODS, NULL);
if (runtime->oss.maxfrags && s > runtime->oss.maxfrags)
@@ -270,7 +786,8 @@ static int snd_pcm_oss_period_size(struct snd_pcm_substream *substream,
while (oss_period_size * oss_periods > oss_buffer_size)
oss_period_size /= 2;
- snd_assert(oss_period_size >= 16, return -EINVAL);
+ if (oss_period_size < 16)
+ return -EINVAL;
runtime->oss.period_bytes = oss_period_size;
runtime->oss.period_frames = 1;
runtime->oss.periods = oss_periods;
@@ -326,40 +843,41 @@ static int snd_pcm_oss_change_params(struct snd_pcm_substream *substream)
size_t oss_frame_size;
int err;
int direct;
- int format, sformat, n;
+ snd_pcm_format_t format, sformat;
+ int n;
struct snd_mask sformat_mask;
struct snd_mask mask;
+ if (mutex_lock_interruptible(&runtime->oss.params_lock))
+ return -EINTR;
sw_params = kmalloc(sizeof(*sw_params), GFP_KERNEL);
params = kmalloc(sizeof(*params), GFP_KERNEL);
sparams = kmalloc(sizeof(*sparams), GFP_KERNEL);
if (!sw_params || !params || !sparams) {
- snd_printd("No memory\n");
+ pcm_dbg(substream->pcm, "No memory\n");
err = -ENOMEM;
goto failure;
}
- if (atomic_read(&runtime->mmap_count)) {
+ if (atomic_read(&substream->mmap_count))
direct = 1;
- } else {
- struct snd_pcm_oss_setup *setup = substream->oss.setup;
- direct = (setup != NULL && setup->direct);
- }
+ else
+ direct = substream->oss.setup.direct;
_snd_pcm_hw_params_any(sparams);
_snd_pcm_hw_param_setinteger(sparams, SNDRV_PCM_HW_PARAM_PERIODS);
_snd_pcm_hw_param_min(sparams, SNDRV_PCM_HW_PARAM_PERIODS, 2, 0);
snd_mask_none(&mask);
- if (atomic_read(&runtime->mmap_count))
- snd_mask_set(&mask, SNDRV_PCM_ACCESS_MMAP_INTERLEAVED);
+ if (atomic_read(&substream->mmap_count))
+ snd_mask_set(&mask, (__force int)SNDRV_PCM_ACCESS_MMAP_INTERLEAVED);
else {
- snd_mask_set(&mask, SNDRV_PCM_ACCESS_RW_INTERLEAVED);
+ snd_mask_set(&mask, (__force int)SNDRV_PCM_ACCESS_RW_INTERLEAVED);
if (!direct)
- snd_mask_set(&mask, SNDRV_PCM_ACCESS_RW_NONINTERLEAVED);
+ snd_mask_set(&mask, (__force int)SNDRV_PCM_ACCESS_RW_NONINTERLEAVED);
}
err = snd_pcm_hw_param_mask(substream, sparams, SNDRV_PCM_HW_PARAM_ACCESS, &mask);
if (err < 0) {
- snd_printd("No usable accesses\n");
+ pcm_dbg(substream->pcm, "No usable accesses\n");
err = -EINVAL;
goto failure;
}
@@ -374,29 +892,33 @@ static int snd_pcm_oss_change_params(struct snd_pcm_substream *substream)
else
sformat = snd_pcm_plug_slave_format(format, &sformat_mask);
- if (sformat < 0 || !snd_mask_test(&sformat_mask, sformat)) {
- for (sformat = 0; sformat <= SNDRV_PCM_FORMAT_LAST; sformat++) {
- if (snd_mask_test(&sformat_mask, sformat) &&
+ if ((__force int)sformat < 0 ||
+ !snd_mask_test(&sformat_mask, (__force int)sformat)) {
+ for (sformat = (__force snd_pcm_format_t)0;
+ (__force int)sformat <= (__force int)SNDRV_PCM_FORMAT_LAST;
+ sformat = (__force snd_pcm_format_t)((__force int)sformat + 1)) {
+ if (snd_mask_test(&sformat_mask, (__force int)sformat) &&
snd_pcm_oss_format_to(sformat) >= 0)
break;
}
- if (sformat > SNDRV_PCM_FORMAT_LAST) {
- snd_printd("Cannot find a format!!!\n");
+ if ((__force int)sformat > (__force int)SNDRV_PCM_FORMAT_LAST) {
+ pcm_dbg(substream->pcm, "Cannot find a format!!!\n");
err = -EINVAL;
goto failure;
}
}
- err = _snd_pcm_hw_param_set(sparams, SNDRV_PCM_HW_PARAM_FORMAT, sformat, 0);
- snd_assert(err >= 0, goto failure);
+ err = _snd_pcm_hw_param_set(sparams, SNDRV_PCM_HW_PARAM_FORMAT, (__force int)sformat, 0);
+ if (err < 0)
+ goto failure;
if (direct) {
memcpy(params, sparams, sizeof(*params));
} else {
_snd_pcm_hw_params_any(params);
_snd_pcm_hw_param_set(params, SNDRV_PCM_HW_PARAM_ACCESS,
- SNDRV_PCM_ACCESS_RW_INTERLEAVED, 0);
+ (__force int)SNDRV_PCM_ACCESS_RW_INTERLEAVED, 0);
_snd_pcm_hw_param_set(params, SNDRV_PCM_HW_PARAM_FORMAT,
- snd_pcm_oss_format_from(runtime->oss.format), 0);
+ (__force int)snd_pcm_oss_format_from(runtime->oss.format), 0);
_snd_pcm_hw_param_set(params, SNDRV_PCM_HW_PARAM_CHANNELS,
runtime->oss.channels, 0);
_snd_pcm_hw_param_set(params, SNDRV_PCM_HW_PARAM_RATE,
@@ -412,6 +934,7 @@ static int snd_pcm_oss_change_params(struct snd_pcm_substream *substream)
oss_frame_size = snd_pcm_format_physical_width(params_format(params)) *
params_channels(params) / 8;
+#ifdef CONFIG_SND_PCM_OSS_PLUGINS
snd_pcm_oss_plugin_clear(substream);
if (!direct) {
/* add necessary plugins */
@@ -419,14 +942,16 @@ static int snd_pcm_oss_change_params(struct snd_pcm_substream *substream)
if ((err = snd_pcm_plug_format_plugins(substream,
params,
sparams)) < 0) {
- snd_printd("snd_pcm_plug_format_plugins failed: %i\n", err);
+ pcm_dbg(substream->pcm,
+ "snd_pcm_plug_format_plugins failed: %i\n", err);
snd_pcm_oss_plugin_clear(substream);
goto failure;
}
if (runtime->oss.plugin_first) {
struct snd_pcm_plugin *plugin;
if ((err = snd_pcm_plugin_build_io(substream, sparams, &plugin)) < 0) {
- snd_printd("snd_pcm_plugin_build_io failed: %i\n", err);
+ pcm_dbg(substream->pcm,
+ "snd_pcm_plugin_build_io failed: %i\n", err);
snd_pcm_oss_plugin_clear(substream);
goto failure;
}
@@ -441,6 +966,7 @@ static int snd_pcm_oss_change_params(struct snd_pcm_substream *substream)
}
}
}
+#endif
err = snd_pcm_oss_period_size(substream, params, sparams);
if (err < 0)
@@ -448,16 +974,18 @@ static int snd_pcm_oss_change_params(struct snd_pcm_substream *substream)
n = snd_pcm_plug_slave_size(substream, runtime->oss.period_bytes / oss_frame_size);
err = snd_pcm_hw_param_near(substream, sparams, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, n, NULL);
- snd_assert(err >= 0, goto failure);
+ if (err < 0)
+ goto failure;
err = snd_pcm_hw_param_near(substream, sparams, SNDRV_PCM_HW_PARAM_PERIODS,
runtime->oss.periods, NULL);
- snd_assert(err >= 0, goto failure);
+ if (err < 0)
+ goto failure;
snd_pcm_kernel_ioctl(substream, SNDRV_PCM_IOCTL_DROP, NULL);
if ((err = snd_pcm_kernel_ioctl(substream, SNDRV_PCM_IOCTL_HW_PARAMS, sparams)) < 0) {
- snd_printd("HW_PARAMS failed: %i\n", err);
+ pcm_dbg(substream->pcm, "HW_PARAMS failed: %i\n", err);
goto failure;
}
@@ -467,18 +995,17 @@ static int snd_pcm_oss_change_params(struct snd_pcm_substream *substream)
} else {
sw_params->start_threshold = runtime->boundary;
}
- if (atomic_read(&runtime->mmap_count) || substream->stream == SNDRV_PCM_STREAM_CAPTURE)
+ if (atomic_read(&substream->mmap_count) ||
+ substream->stream == SNDRV_PCM_STREAM_CAPTURE)
sw_params->stop_threshold = runtime->boundary;
else
sw_params->stop_threshold = runtime->buffer_size;
sw_params->tstamp_mode = SNDRV_PCM_TSTAMP_NONE;
sw_params->period_step = 1;
- sw_params->sleep_min = 0;
sw_params->avail_min = substream->stream == SNDRV_PCM_STREAM_PLAYBACK ?
1 : runtime->period_size;
- sw_params->xfer_align = 1;
- if (atomic_read(&runtime->mmap_count) ||
- (substream->oss.setup && substream->oss.setup->nosilence)) {
+ if (atomic_read(&substream->mmap_count) ||
+ substream->oss.setup.nosilence) {
sw_params->silence_threshold = 0;
sw_params->silence_size = 0;
} else {
@@ -491,22 +1018,30 @@ static int snd_pcm_oss_change_params(struct snd_pcm_substream *substream)
}
if ((err = snd_pcm_kernel_ioctl(substream, SNDRV_PCM_IOCTL_SW_PARAMS, sw_params)) < 0) {
- snd_printd("SW_PARAMS failed: %i\n", err);
+ pcm_dbg(substream->pcm, "SW_PARAMS failed: %i\n", err);
goto failure;
}
runtime->oss.periods = params_periods(sparams);
oss_period_size = snd_pcm_plug_client_size(substream, params_period_size(sparams));
- snd_assert(oss_period_size >= 0, err = -EINVAL; goto failure);
+ if (oss_period_size < 0) {
+ err = -EINVAL;
+ goto failure;
+ }
+#ifdef CONFIG_SND_PCM_OSS_PLUGINS
if (runtime->oss.plugin_first) {
err = snd_pcm_plug_alloc(substream, oss_period_size);
if (err < 0)
goto failure;
}
+#endif
oss_period_size *= oss_frame_size;
oss_buffer_size = oss_period_size * runtime->oss.periods;
- snd_assert(oss_buffer_size >= 0, err = -EINVAL; goto failure);
+ if (oss_buffer_size < 0) {
+ err = -EINVAL;
+ goto failure;
+ }
runtime->oss.period_bytes = oss_period_size;
runtime->oss.buffer_bytes = oss_buffer_size;
@@ -522,10 +1057,15 @@ static int snd_pcm_oss_change_params(struct snd_pcm_substream *substream)
runtime->oss.channels = params_channels(params);
runtime->oss.rate = params_rate(params);
- runtime->oss.params = 0;
- runtime->oss.prepare = 1;
vfree(runtime->oss.buffer);
runtime->oss.buffer = vmalloc(runtime->oss.period_bytes);
+ if (!runtime->oss.buffer) {
+ err = -ENOMEM;
+ goto failure;
+ }
+
+ runtime->oss.params = 0;
+ runtime->oss.prepare = 1;
runtime->oss.buffer_used = 0;
if (runtime->dma_area)
snd_pcm_format_set_silence(runtime->format, runtime->dma_area, bytes_to_samples(runtime, runtime->dma_bytes));
@@ -537,6 +1077,7 @@ failure:
kfree(sw_params);
kfree(params);
kfree(sparams);
+ mutex_unlock(&runtime->oss.params_lock);
return err;
}
@@ -557,7 +1098,8 @@ static int snd_pcm_oss_get_active_substream(struct snd_pcm_oss_file *pcm_oss_fil
return err;
}
}
- snd_assert(asubstream != NULL, return -EIO);
+ if (!asubstream)
+ return -EIO;
if (r_substream)
*r_substream = asubstream;
return 0;
@@ -570,11 +1112,12 @@ static int snd_pcm_oss_prepare(struct snd_pcm_substream *substream)
err = snd_pcm_kernel_ioctl(substream, SNDRV_PCM_IOCTL_PREPARE, NULL);
if (err < 0) {
- snd_printd("snd_pcm_oss_prepare: SNDRV_PCM_IOCTL_PREPARE failed\n");
+ pcm_dbg(substream->pcm,
+ "snd_pcm_oss_prepare: SNDRV_PCM_IOCTL_PREPARE failed\n");
return err;
}
runtime->oss.prepare = 0;
- runtime->oss.prev_hw_ptr_interrupt = 0;
+ runtime->oss.prev_hw_ptr_period = 0;
runtime->oss.period_ptr = 0;
runtime->oss.buffer_used = 0;
@@ -635,10 +1178,10 @@ snd_pcm_sframes_t snd_pcm_oss_write3(struct snd_pcm_substream *substream, const
if (runtime->status->state == SNDRV_PCM_STATE_XRUN ||
runtime->status->state == SNDRV_PCM_STATE_SUSPENDED) {
#ifdef OSS_DEBUG
- if (runtime->status->state == SNDRV_PCM_STATE_XRUN)
- printk("pcm_oss: write: recovering from XRUN\n");
- else
- printk("pcm_oss: write: recovering from SUSPEND\n");
+ pcm_dbg(substream->pcm,
+ "pcm_oss: write: recovering from %s\n",
+ runtime->status->state == SNDRV_PCM_STATE_XRUN ?
+ "XRUN" : "SUSPEND");
#endif
ret = snd_pcm_oss_prepare(substream);
if (ret < 0)
@@ -647,10 +1190,10 @@ snd_pcm_sframes_t snd_pcm_oss_write3(struct snd_pcm_substream *substream, const
if (in_kernel) {
mm_segment_t fs;
fs = snd_enter_user();
- ret = snd_pcm_lib_write(substream, (void __user *)ptr, frames);
+ ret = snd_pcm_lib_write(substream, (void __force __user *)ptr, frames);
snd_leave_user(fs);
} else {
- ret = snd_pcm_lib_write(substream, (void __user *)ptr, frames);
+ ret = snd_pcm_lib_write(substream, (void __force __user *)ptr, frames);
}
if (ret != -EPIPE && ret != -ESTRPIPE)
break;
@@ -671,10 +1214,10 @@ snd_pcm_sframes_t snd_pcm_oss_read3(struct snd_pcm_substream *substream, char *p
if (runtime->status->state == SNDRV_PCM_STATE_XRUN ||
runtime->status->state == SNDRV_PCM_STATE_SUSPENDED) {
#ifdef OSS_DEBUG
- if (runtime->status->state == SNDRV_PCM_STATE_XRUN)
- printk("pcm_oss: read: recovering from XRUN\n");
- else
- printk("pcm_oss: read: recovering from SUSPEND\n");
+ pcm_dbg(substream->pcm,
+ "pcm_oss: read: recovering from %s\n",
+ runtime->status->state == SNDRV_PCM_STATE_XRUN ?
+ "XRUN" : "SUSPEND");
#endif
ret = snd_pcm_kernel_ioctl(substream, SNDRV_PCM_IOCTL_DRAIN, NULL);
if (ret < 0)
@@ -690,10 +1233,10 @@ snd_pcm_sframes_t snd_pcm_oss_read3(struct snd_pcm_substream *substream, char *p
if (in_kernel) {
mm_segment_t fs;
fs = snd_enter_user();
- ret = snd_pcm_lib_read(substream, (void __user *)ptr, frames);
+ ret = snd_pcm_lib_read(substream, (void __force __user *)ptr, frames);
snd_leave_user(fs);
} else {
- ret = snd_pcm_lib_read(substream, (void __user *)ptr, frames);
+ ret = snd_pcm_lib_read(substream, (void __force __user *)ptr, frames);
}
if (ret == -EPIPE) {
if (runtime->status->state == SNDRV_PCM_STATE_DRAINING) {
@@ -717,10 +1260,10 @@ snd_pcm_sframes_t snd_pcm_oss_writev3(struct snd_pcm_substream *substream, void
if (runtime->status->state == SNDRV_PCM_STATE_XRUN ||
runtime->status->state == SNDRV_PCM_STATE_SUSPENDED) {
#ifdef OSS_DEBUG
- if (runtime->status->state == SNDRV_PCM_STATE_XRUN)
- printk("pcm_oss: writev: recovering from XRUN\n");
- else
- printk("pcm_oss: writev: recovering from SUSPEND\n");
+ pcm_dbg(substream->pcm,
+ "pcm_oss: writev: recovering from %s\n",
+ runtime->status->state == SNDRV_PCM_STATE_XRUN ?
+ "XRUN" : "SUSPEND");
#endif
ret = snd_pcm_oss_prepare(substream);
if (ret < 0)
@@ -753,10 +1296,10 @@ snd_pcm_sframes_t snd_pcm_oss_readv3(struct snd_pcm_substream *substream, void *
if (runtime->status->state == SNDRV_PCM_STATE_XRUN ||
runtime->status->state == SNDRV_PCM_STATE_SUSPENDED) {
#ifdef OSS_DEBUG
- if (runtime->status->state == SNDRV_PCM_STATE_XRUN)
- printk("pcm_oss: readv: recovering from XRUN\n");
- else
- printk("pcm_oss: readv: recovering from SUSPEND\n");
+ pcm_dbg(substream->pcm,
+ "pcm_oss: readv: recovering from %s\n",
+ runtime->status->state == SNDRV_PCM_STATE_XRUN ?
+ "XRUN" : "SUSPEND");
#endif
ret = snd_pcm_kernel_ioctl(substream, SNDRV_PCM_IOCTL_DRAIN, NULL);
if (ret < 0)
@@ -784,11 +1327,12 @@ static ssize_t snd_pcm_oss_write2(struct snd_pcm_substream *substream, const cha
{
struct snd_pcm_runtime *runtime = substream->runtime;
snd_pcm_sframes_t frames, frames1;
+#ifdef CONFIG_SND_PCM_OSS_PLUGINS
if (runtime->oss.plugin_first) {
struct snd_pcm_plugin_channel *channels;
size_t oss_frame_bytes = (runtime->oss.plugin_first->src_width * runtime->oss.plugin_first->src_format.channels) / 8;
if (!in_kernel) {
- if (copy_from_user(runtime->oss.buffer, (const char __user *)buf, bytes))
+ if (copy_from_user(runtime->oss.buffer, (const char __force __user *)buf, bytes))
return -EFAULT;
buf = runtime->oss.buffer;
}
@@ -800,7 +1344,9 @@ static ssize_t snd_pcm_oss_write2(struct snd_pcm_substream *substream, const cha
if (frames1 <= 0)
return frames1;
bytes = frames1 * oss_frame_bytes;
- } else {
+ } else
+#endif
+ {
frames = bytes_to_frames(runtime, bytes);
frames1 = snd_pcm_oss_write3(substream, buf, frames, in_kernel);
if (frames1 <= 0)
@@ -816,62 +1362,73 @@ static ssize_t snd_pcm_oss_write1(struct snd_pcm_substream *substream, const cha
ssize_t tmp;
struct snd_pcm_runtime *runtime = substream->runtime;
- if (atomic_read(&runtime->mmap_count))
+ if (atomic_read(&substream->mmap_count))
return -ENXIO;
if ((tmp = snd_pcm_oss_make_ready(substream)) < 0)
return tmp;
+ mutex_lock(&runtime->oss.params_lock);
while (bytes > 0) {
if (bytes < runtime->oss.period_bytes || runtime->oss.buffer_used > 0) {
tmp = bytes;
if (tmp + runtime->oss.buffer_used > runtime->oss.period_bytes)
tmp = runtime->oss.period_bytes - runtime->oss.buffer_used;
if (tmp > 0) {
- if (copy_from_user(runtime->oss.buffer + runtime->oss.buffer_used, buf, tmp))
- return xfer > 0 ? (snd_pcm_sframes_t)xfer : -EFAULT;
+ if (copy_from_user(runtime->oss.buffer + runtime->oss.buffer_used, buf, tmp)) {
+ tmp = -EFAULT;
+ goto err;
+ }
}
runtime->oss.buffer_used += tmp;
buf += tmp;
bytes -= tmp;
xfer += tmp;
- if ((substream->oss.setup != NULL && substream->oss.setup->partialfrag) ||
+ if (substream->oss.setup.partialfrag ||
runtime->oss.buffer_used == runtime->oss.period_bytes) {
tmp = snd_pcm_oss_write2(substream, runtime->oss.buffer + runtime->oss.period_ptr,
runtime->oss.buffer_used - runtime->oss.period_ptr, 1);
if (tmp <= 0)
- return xfer > 0 ? (snd_pcm_sframes_t)xfer : tmp;
+ goto err;
runtime->oss.bytes += tmp;
runtime->oss.period_ptr += tmp;
runtime->oss.period_ptr %= runtime->oss.period_bytes;
if (runtime->oss.period_ptr == 0 ||
runtime->oss.period_ptr == runtime->oss.buffer_used)
runtime->oss.buffer_used = 0;
- else if ((substream->ffile->f_flags & O_NONBLOCK) != 0)
- return xfer > 0 ? xfer : -EAGAIN;
+ else if ((substream->f_flags & O_NONBLOCK) != 0) {
+ tmp = -EAGAIN;
+ goto err;
+ }
}
} else {
tmp = snd_pcm_oss_write2(substream,
(const char __force *)buf,
runtime->oss.period_bytes, 0);
if (tmp <= 0)
- return xfer > 0 ? (snd_pcm_sframes_t)xfer : tmp;
+ goto err;
runtime->oss.bytes += tmp;
buf += tmp;
bytes -= tmp;
xfer += tmp;
- if ((substream->ffile->f_flags & O_NONBLOCK) != 0 &&
+ if ((substream->f_flags & O_NONBLOCK) != 0 &&
tmp != runtime->oss.period_bytes)
break;
}
}
+ mutex_unlock(&runtime->oss.params_lock);
return xfer;
+
+ err:
+ mutex_unlock(&runtime->oss.params_lock);
+ return xfer > 0 ? (snd_pcm_sframes_t)xfer : tmp;
}
static ssize_t snd_pcm_oss_read2(struct snd_pcm_substream *substream, char *buf, size_t bytes, int in_kernel)
{
struct snd_pcm_runtime *runtime = substream->runtime;
snd_pcm_sframes_t frames, frames1;
- char __user *final_dst = (char __user *)buf;
+#ifdef CONFIG_SND_PCM_OSS_PLUGINS
+ char __user *final_dst = (char __force __user *)buf;
if (runtime->oss.plugin_first) {
struct snd_pcm_plugin_channel *channels;
size_t oss_frame_bytes = (runtime->oss.plugin_last->dst_width * runtime->oss.plugin_last->dst_format.channels) / 8;
@@ -887,7 +1444,9 @@ static ssize_t snd_pcm_oss_read2(struct snd_pcm_substream *substream, char *buf,
bytes = frames1 * oss_frame_bytes;
if (!in_kernel && copy_to_user(final_dst, buf, bytes))
return -EFAULT;
- } else {
+ } else
+#endif
+ {
frames = bytes_to_frames(runtime, bytes);
frames1 = snd_pcm_oss_read3(substream, buf, frames, in_kernel);
if (frames1 <= 0)
@@ -903,17 +1462,18 @@ static ssize_t snd_pcm_oss_read1(struct snd_pcm_substream *substream, char __use
ssize_t tmp;
struct snd_pcm_runtime *runtime = substream->runtime;
- if (atomic_read(&runtime->mmap_count))
+ if (atomic_read(&substream->mmap_count))
return -ENXIO;
if ((tmp = snd_pcm_oss_make_ready(substream)) < 0)
return tmp;
+ mutex_lock(&runtime->oss.params_lock);
while (bytes > 0) {
if (bytes < runtime->oss.period_bytes || runtime->oss.buffer_used > 0) {
if (runtime->oss.buffer_used == 0) {
tmp = snd_pcm_oss_read2(substream, runtime->oss.buffer, runtime->oss.period_bytes, 1);
if (tmp <= 0)
- return xfer > 0 ? (snd_pcm_sframes_t)xfer : tmp;
+ goto err;
runtime->oss.bytes += tmp;
runtime->oss.period_ptr = tmp;
runtime->oss.buffer_used = tmp;
@@ -921,8 +1481,10 @@ static ssize_t snd_pcm_oss_read1(struct snd_pcm_substream *substream, char __use
tmp = bytes;
if ((size_t) tmp > runtime->oss.buffer_used)
tmp = runtime->oss.buffer_used;
- if (copy_to_user(buf, runtime->oss.buffer + (runtime->oss.period_ptr - runtime->oss.buffer_used), tmp))
- return xfer > 0 ? (snd_pcm_sframes_t)xfer : -EFAULT;
+ if (copy_to_user(buf, runtime->oss.buffer + (runtime->oss.period_ptr - runtime->oss.buffer_used), tmp)) {
+ tmp = -EFAULT;
+ goto err;
+ }
buf += tmp;
bytes -= tmp;
xfer += tmp;
@@ -931,29 +1493,37 @@ static ssize_t snd_pcm_oss_read1(struct snd_pcm_substream *substream, char __use
tmp = snd_pcm_oss_read2(substream, (char __force *)buf,
runtime->oss.period_bytes, 0);
if (tmp <= 0)
- return xfer > 0 ? (snd_pcm_sframes_t)xfer : tmp;
+ goto err;
runtime->oss.bytes += tmp;
buf += tmp;
bytes -= tmp;
xfer += tmp;
}
}
+ mutex_unlock(&runtime->oss.params_lock);
return xfer;
+
+ err:
+ mutex_unlock(&runtime->oss.params_lock);
+ return xfer > 0 ? (snd_pcm_sframes_t)xfer : tmp;
}
static int snd_pcm_oss_reset(struct snd_pcm_oss_file *pcm_oss_file)
{
struct snd_pcm_substream *substream;
+ struct snd_pcm_runtime *runtime;
+ int i;
- substream = pcm_oss_file->streams[SNDRV_PCM_STREAM_PLAYBACK];
- if (substream != NULL) {
- snd_pcm_kernel_playback_ioctl(substream, SNDRV_PCM_IOCTL_DROP, NULL);
- substream->runtime->oss.prepare = 1;
- }
- substream = pcm_oss_file->streams[SNDRV_PCM_STREAM_CAPTURE];
- if (substream != NULL) {
- snd_pcm_kernel_capture_ioctl(substream, SNDRV_PCM_IOCTL_DROP, NULL);
- substream->runtime->oss.prepare = 1;
+ for (i = 0; i < 2; i++) {
+ substream = pcm_oss_file->streams[i];
+ if (!substream)
+ continue;
+ runtime = substream->runtime;
+ snd_pcm_kernel_ioctl(substream, SNDRV_PCM_IOCTL_DROP, NULL);
+ runtime->oss.prepare = 1;
+ runtime->oss.buffer_used = 0;
+ runtime->oss.prev_hw_ptr_period = 0;
+ runtime->oss.period_ptr = 0;
}
return 0;
}
@@ -967,7 +1537,7 @@ static int snd_pcm_oss_post(struct snd_pcm_oss_file *pcm_oss_file)
if (substream != NULL) {
if ((err = snd_pcm_oss_make_ready(substream)) < 0)
return err;
- snd_pcm_kernel_playback_ioctl(substream, SNDRV_PCM_IOCTL_START, NULL);
+ snd_pcm_kernel_ioctl(substream, SNDRV_PCM_IOCTL_START, NULL);
}
/* note: all errors from the start action are ignored */
/* OSS apps do not know, how to handle them */
@@ -978,6 +1548,7 @@ static int snd_pcm_oss_sync1(struct snd_pcm_substream *substream, size_t size)
{
struct snd_pcm_runtime *runtime;
ssize_t result = 0;
+ snd_pcm_state_t state;
long res;
wait_queue_t wait;
@@ -985,7 +1556,7 @@ static int snd_pcm_oss_sync1(struct snd_pcm_substream *substream, size_t size)
init_waitqueue_entry(&wait, current);
add_wait_queue(&runtime->sleep, &wait);
#ifdef OSS_DEBUG
- printk("sync1: size = %li\n", size);
+ pcm_dbg(substream->pcm, "sync1: size = %li\n", size);
#endif
while (1) {
result = snd_pcm_oss_write2(substream, runtime->oss.buffer, size, 1);
@@ -999,9 +1570,9 @@ static int snd_pcm_oss_sync1(struct snd_pcm_substream *substream, size_t size)
result = 0;
set_current_state(TASK_INTERRUPTIBLE);
snd_pcm_stream_lock_irq(substream);
- res = runtime->status->state;
+ state = runtime->status->state;
snd_pcm_stream_unlock_irq(substream);
- if (res != SNDRV_PCM_STATE_RUNNING) {
+ if (state != SNDRV_PCM_STATE_RUNNING) {
set_current_state(TASK_RUNNING);
break;
}
@@ -1011,7 +1582,8 @@ static int snd_pcm_oss_sync1(struct snd_pcm_substream *substream, size_t size)
break;
}
if (res == 0) {
- snd_printk(KERN_ERR "OSS sync error - DMA timeout\n");
+ pcm_err(substream->pcm,
+ "OSS sync error - DMA timeout\n");
result = -EIO;
break;
}
@@ -1033,34 +1605,39 @@ static int snd_pcm_oss_sync(struct snd_pcm_oss_file *pcm_oss_file)
substream = pcm_oss_file->streams[SNDRV_PCM_STREAM_PLAYBACK];
if (substream != NULL) {
runtime = substream->runtime;
- if (atomic_read(&runtime->mmap_count))
+ if (atomic_read(&substream->mmap_count))
goto __direct;
if ((err = snd_pcm_oss_make_ready(substream)) < 0)
return err;
format = snd_pcm_oss_format_from(runtime->oss.format);
width = snd_pcm_format_physical_width(format);
+ mutex_lock(&runtime->oss.params_lock);
if (runtime->oss.buffer_used > 0) {
#ifdef OSS_DEBUG
- printk("sync: buffer_used\n");
+ pcm_dbg(substream->pcm, "sync: buffer_used\n");
#endif
size = (8 * (runtime->oss.period_bytes - runtime->oss.buffer_used) + 7) / width;
snd_pcm_format_set_silence(format,
runtime->oss.buffer + runtime->oss.buffer_used,
size);
err = snd_pcm_oss_sync1(substream, runtime->oss.period_bytes);
- if (err < 0)
+ if (err < 0) {
+ mutex_unlock(&runtime->oss.params_lock);
return err;
+ }
} else if (runtime->oss.period_ptr > 0) {
#ifdef OSS_DEBUG
- printk("sync: period_ptr\n");
+ pcm_dbg(substream->pcm, "sync: period_ptr\n");
#endif
size = runtime->oss.period_bytes - runtime->oss.period_ptr;
snd_pcm_format_set_silence(format,
runtime->oss.buffer,
size * 8 / width);
err = snd_pcm_oss_sync1(substream, size);
- if (err < 0)
+ if (err < 0) {
+ mutex_unlock(&runtime->oss.params_lock);
return err;
+ }
}
/*
* The ALSA's period might be a bit large than OSS one.
@@ -1080,8 +1657,9 @@ static int snd_pcm_oss_sync(struct snd_pcm_oss_file *pcm_oss_file)
snd_pcm_format_set_silence(runtime->format,
runtime->oss.buffer,
size1);
+ size1 /= runtime->channels; /* frames */
fs = snd_enter_user();
- snd_pcm_lib_write(substream, (void __user *)runtime->oss.buffer, size1);
+ snd_pcm_lib_write(substream, (void __force __user *)runtime->oss.buffer, size1);
snd_leave_user(fs);
}
} else if (runtime->access == SNDRV_PCM_ACCESS_RW_NONINTERLEAVED) {
@@ -1090,14 +1668,15 @@ static int snd_pcm_oss_sync(struct snd_pcm_oss_file *pcm_oss_file)
snd_pcm_lib_writev(substream, buffers, size);
}
}
+ mutex_unlock(&runtime->oss.params_lock);
/*
* finish sync: drain the buffer
*/
__direct:
- saved_f_flags = substream->ffile->f_flags;
- substream->ffile->f_flags &= ~O_NONBLOCK;
- err = snd_pcm_kernel_playback_ioctl(substream, SNDRV_PCM_IOCTL_DRAIN, NULL);
- substream->ffile->f_flags = saved_f_flags;
+ saved_f_flags = substream->f_flags;
+ substream->f_flags &= ~O_NONBLOCK;
+ err = snd_pcm_kernel_ioctl(substream, SNDRV_PCM_IOCTL_DRAIN, NULL);
+ substream->f_flags = saved_f_flags;
if (err < 0)
return err;
runtime->oss.prepare = 1;
@@ -1108,7 +1687,7 @@ static int snd_pcm_oss_sync(struct snd_pcm_oss_file *pcm_oss_file)
if ((err = snd_pcm_oss_make_ready(substream)) < 0)
return err;
runtime = substream->runtime;
- err = snd_pcm_kernel_capture_ioctl(substream, SNDRV_PCM_IOCTL_DROP, NULL);
+ err = snd_pcm_kernel_ioctl(substream, SNDRV_PCM_IOCTL_DROP, NULL);
if (err < 0)
return err;
runtime->oss.buffer_used = 0;
@@ -1202,17 +1781,18 @@ static int snd_pcm_oss_get_formats(struct snd_pcm_oss_file *pcm_oss_file)
if ((err = snd_pcm_oss_get_active_substream(pcm_oss_file, &substream)) < 0)
return err;
- if (atomic_read(&substream->runtime->mmap_count)) {
+ if (atomic_read(&substream->mmap_count))
direct = 1;
- } else {
- struct snd_pcm_oss_setup *setup = substream->oss.setup;
- direct = (setup != NULL && setup->direct);
- }
+ else
+ direct = substream->oss.setup.direct;
if (!direct)
return AFMT_MU_LAW | AFMT_U8 |
AFMT_S16_LE | AFMT_S16_BE |
AFMT_S8 | AFMT_U16_LE |
- AFMT_U16_BE;
+ AFMT_U16_BE |
+ AFMT_S32_LE | AFMT_S32_BE |
+ AFMT_S24_LE | AFMT_S24_BE |
+ AFMT_S24_PACKED;
params = kmalloc(sizeof(*params), GFP_KERNEL);
if (!params)
return -ENOMEM;
@@ -1220,7 +1800,8 @@ static int snd_pcm_oss_get_formats(struct snd_pcm_oss_file *pcm_oss_file)
err = snd_pcm_hw_refine(substream, params);
format_mask = *hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
kfree(params);
- snd_assert(err >= 0, return err);
+ if (err < 0)
+ return err;
for (fmt = 0; fmt < 32; ++fmt) {
if (snd_mask_test(&format_mask, fmt)) {
int f = snd_pcm_oss_format_to(fmt);
@@ -1237,6 +1818,8 @@ static int snd_pcm_oss_set_format(struct snd_pcm_oss_file *pcm_oss_file, int for
if (format != AFMT_QUERY) {
formats = snd_pcm_oss_get_formats(pcm_oss_file);
+ if (formats < 0)
+ return formats;
if (!(formats & format))
format = AFMT_U8;
for (idx = 1; idx >= 0; --idx) {
@@ -1336,7 +1919,9 @@ static int snd_pcm_oss_set_fragment(struct snd_pcm_oss_file *pcm_oss_file, unsig
static int snd_pcm_oss_nonblock(struct file * file)
{
+ spin_lock(&file->f_lock);
file->f_flags |= O_NONBLOCK;
+ spin_unlock(&file->f_lock);
return 0;
}
@@ -1377,7 +1962,8 @@ static int snd_pcm_oss_get_caps(struct snd_pcm_oss_file *pcm_oss_file)
return result;
}
-static void snd_pcm_oss_simulate_fill(struct snd_pcm_substream *substream, snd_pcm_uframes_t hw_ptr)
+static void snd_pcm_oss_simulate_fill(struct snd_pcm_substream *substream,
+ snd_pcm_uframes_t hw_ptr)
{
struct snd_pcm_runtime *runtime = substream->runtime;
snd_pcm_uframes_t appl_ptr;
@@ -1393,7 +1979,7 @@ static int snd_pcm_oss_set_trigger(struct snd_pcm_oss_file *pcm_oss_file, int tr
int err, cmd;
#ifdef OSS_DEBUG
- printk("pcm_oss: trigger = 0x%x\n", trigger);
+ pcm_dbg(substream->pcm, "pcm_oss: trigger = 0x%x\n", trigger);
#endif
psubstream = pcm_oss_file->streams[SNDRV_PCM_STREAM_PLAYBACK];
@@ -1412,8 +1998,9 @@ static int snd_pcm_oss_set_trigger(struct snd_pcm_oss_file *pcm_oss_file, int tr
if (trigger & PCM_ENABLE_OUTPUT) {
if (runtime->oss.trigger)
goto _skip1;
- if (atomic_read(&psubstream->runtime->mmap_count))
- snd_pcm_oss_simulate_fill(psubstream, runtime->hw_ptr_interrupt);
+ if (atomic_read(&psubstream->mmap_count))
+ snd_pcm_oss_simulate_fill(psubstream,
+ get_hw_ptr_period(runtime));
runtime->oss.trigger = 1;
runtime->start_threshold = 1;
cmd = SNDRV_PCM_IOCTL_START;
@@ -1425,7 +2012,7 @@ static int snd_pcm_oss_set_trigger(struct snd_pcm_oss_file *pcm_oss_file, int tr
cmd = SNDRV_PCM_IOCTL_DROP;
runtime->oss.prepare = 1;
}
- err = snd_pcm_kernel_playback_ioctl(psubstream, cmd, NULL);
+ err = snd_pcm_kernel_ioctl(psubstream, cmd, NULL);
if (err < 0)
return err;
}
@@ -1446,7 +2033,7 @@ static int snd_pcm_oss_set_trigger(struct snd_pcm_oss_file *pcm_oss_file, int tr
cmd = SNDRV_PCM_IOCTL_DROP;
runtime->oss.prepare = 1;
}
- err = snd_pcm_kernel_capture_ioctl(csubstream, cmd, NULL);
+ err = snd_pcm_kernel_ioctl(csubstream, cmd, NULL);
if (err < 0)
return err;
}
@@ -1483,7 +2070,7 @@ static int snd_pcm_oss_get_odelay(struct snd_pcm_oss_file *pcm_oss_file)
runtime = substream->runtime;
if (runtime->oss.params || runtime->oss.prepare)
return 0;
- err = snd_pcm_kernel_playback_ioctl(substream, SNDRV_PCM_IOCTL_DELAY, &delay);
+ err = snd_pcm_kernel_ioctl(substream, SNDRV_PCM_IOCTL_DELAY, &delay);
if (err == -EPIPE)
delay = 0; /* hack for broken OSS applications */
else if (err < 0)
@@ -1530,21 +2117,21 @@ static int snd_pcm_oss_get_ptr(struct snd_pcm_oss_file *pcm_oss_file, int stream
if (err < 0)
return err;
info.ptr = snd_pcm_oss_bytes(substream, runtime->status->hw_ptr % runtime->buffer_size);
- if (atomic_read(&runtime->mmap_count)) {
+ if (atomic_read(&substream->mmap_count)) {
snd_pcm_sframes_t n;
- n = (delay = runtime->hw_ptr_interrupt) - runtime->oss.prev_hw_ptr_interrupt;
+ delay = get_hw_ptr_period(runtime);
+ n = delay - runtime->oss.prev_hw_ptr_period;
if (n < 0)
n += runtime->boundary;
info.blocks = n / runtime->period_size;
- runtime->oss.prev_hw_ptr_interrupt = delay;
+ runtime->oss.prev_hw_ptr_period = delay;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
snd_pcm_oss_simulate_fill(substream, delay);
info.bytes = snd_pcm_oss_bytes(substream, runtime->status->hw_ptr) & INT_MAX;
} else {
delay = snd_pcm_oss_bytes(substream, delay);
if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
- struct snd_pcm_oss_setup *setup = substream->oss.setup;
- if (setup && setup->buggyptr)
+ if (substream->oss.setup.buggyptr)
info.blocks = (runtime->oss.buffer_bytes - delay - fixup) / runtime->oss.period_bytes;
else
info.blocks = (delay + fixup) / runtime->oss.period_bytes;
@@ -1612,7 +2199,9 @@ static int snd_pcm_oss_get_space(struct snd_pcm_oss_file *pcm_oss_file, int stre
}
#ifdef OSS_DEBUG
- printk("pcm_oss: space: bytes = %i, fragments = %i, fragstotal = %i, fragsize = %i\n", info.bytes, info.fragments, info.fragstotal, info.fragsize);
+ pcm_dbg(substream->pcm,
+ "pcm_oss: space: bytes = %i, fragments = %i, fragstotal = %i, fragsize = %i\n",
+ info.bytes, info.fragments, info.fragstotal, info.fragsize);
#endif
if (copy_to_user(_info, &info, sizeof(info)))
return -EFAULT;
@@ -1622,41 +2211,50 @@ static int snd_pcm_oss_get_space(struct snd_pcm_oss_file *pcm_oss_file, int stre
static int snd_pcm_oss_get_mapbuf(struct snd_pcm_oss_file *pcm_oss_file, int stream, struct buffmem_desc __user * _info)
{
// it won't be probably implemented
- // snd_printd("TODO: snd_pcm_oss_get_mapbuf\n");
+ // pr_debug("TODO: snd_pcm_oss_get_mapbuf\n");
return -EINVAL;
}
-static struct snd_pcm_oss_setup *snd_pcm_oss_look_for_setup(struct snd_pcm *pcm, int stream, const char *task_name)
+static const char *strip_task_path(const char *path)
{
- const char *ptr, *ptrl;
- struct snd_pcm_oss_setup *setup;
-
- down(&pcm->streams[stream].oss.setup_mutex);
- for (setup = pcm->streams[stream].oss.setup_list; setup; setup = setup->next) {
- if (!strcmp(setup->task_name, task_name)) {
- up(&pcm->streams[stream].oss.setup_mutex);
- return setup;
- }
- }
- ptr = ptrl = task_name;
- while (*ptr) {
+ const char *ptr, *ptrl = NULL;
+ for (ptr = path; *ptr; ptr++) {
if (*ptr == '/')
ptrl = ptr + 1;
- ptr++;
- }
- if (ptrl == task_name) {
- goto __not_found;
- return NULL;
}
- for (setup = pcm->streams[stream].oss.setup_list; setup; setup = setup->next) {
- if (!strcmp(setup->task_name, ptrl)) {
- up(&pcm->streams[stream].oss.setup_mutex);
- return setup;
+ return ptrl;
+}
+
+static void snd_pcm_oss_look_for_setup(struct snd_pcm *pcm, int stream,
+ const char *task_name,
+ struct snd_pcm_oss_setup *rsetup)
+{
+ struct snd_pcm_oss_setup *setup;
+
+ mutex_lock(&pcm->streams[stream].oss.setup_mutex);
+ do {
+ for (setup = pcm->streams[stream].oss.setup_list; setup;
+ setup = setup->next) {
+ if (!strcmp(setup->task_name, task_name))
+ goto out;
}
- }
- __not_found:
- up(&pcm->streams[stream].oss.setup_mutex);
- return NULL;
+ } while ((task_name = strip_task_path(task_name)) != NULL);
+ out:
+ if (setup)
+ *rsetup = *setup;
+ mutex_unlock(&pcm->streams[stream].oss.setup_mutex);
+}
+
+static void snd_pcm_oss_release_substream(struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime;
+ runtime = substream->runtime;
+ vfree(runtime->oss.buffer);
+ runtime->oss.buffer = NULL;
+#ifdef CONFIG_SND_PCM_OSS_PLUGINS
+ snd_pcm_oss_plugin_clear(substream);
+#endif
+ substream->oss.oss = 0;
}
static void snd_pcm_oss_init_substream(struct snd_pcm_substream *substream,
@@ -1666,11 +2264,16 @@ static void snd_pcm_oss_init_substream(struct snd_pcm_substream *substream,
struct snd_pcm_runtime *runtime;
substream->oss.oss = 1;
- substream->oss.setup = setup;
+ substream->oss.setup = *setup;
+ if (setup->nonblock)
+ substream->f_flags |= O_NONBLOCK;
+ else if (setup->block)
+ substream->f_flags &= ~O_NONBLOCK;
runtime = substream->runtime;
runtime->oss.params = 1;
runtime->oss.trigger = 1;
runtime->oss.rate = 8000;
+ mutex_init(&runtime->oss.params_lock);
switch (SNDRV_MINOR_OSS_DEVICE(minor)) {
case SNDRV_MINOR_OSS_PCM_8:
runtime->oss.format = AFMT_U8;
@@ -1685,41 +2288,18 @@ static void snd_pcm_oss_init_substream(struct snd_pcm_substream *substream,
runtime->oss.fragshift = 0;
runtime->oss.maxfrags = 0;
runtime->oss.subdivision = 0;
-}
-
-static void snd_pcm_oss_release_substream(struct snd_pcm_substream *substream)
-{
- struct snd_pcm_runtime *runtime;
- runtime = substream->runtime;
- vfree(runtime->oss.buffer);
- snd_pcm_oss_plugin_clear(substream);
- substream->oss.file = NULL;
- substream->oss.oss = 0;
+ substream->pcm_release = snd_pcm_oss_release_substream;
}
static int snd_pcm_oss_release_file(struct snd_pcm_oss_file *pcm_oss_file)
{
int cidx;
- snd_assert(pcm_oss_file != NULL, return -ENXIO);
+ if (!pcm_oss_file)
+ return 0;
for (cidx = 0; cidx < 2; ++cidx) {
struct snd_pcm_substream *substream = pcm_oss_file->streams[cidx];
- struct snd_pcm_runtime *runtime;
- if (substream == NULL)
- continue;
- runtime = substream->runtime;
-
- snd_pcm_stream_lock_irq(substream);
- if (snd_pcm_running(substream))
- snd_pcm_stop(substream, SNDRV_PCM_STATE_SETUP);
- snd_pcm_stream_unlock_irq(substream);
- if (substream->ffile != NULL) {
- if (substream->ops->hw_free != NULL)
- substream->ops->hw_free(substream);
- substream->ops->close(substream);
- substream->ffile = NULL;
- }
- snd_pcm_oss_release_substream(substream);
- snd_pcm_release_substream(substream);
+ if (substream)
+ snd_pcm_release_substream(substream);
}
kfree(pcm_oss_file);
return 0;
@@ -1729,16 +2309,15 @@ static int snd_pcm_oss_open_file(struct file *file,
struct snd_pcm *pcm,
struct snd_pcm_oss_file **rpcm_oss_file,
int minor,
- struct snd_pcm_oss_setup *psetup,
- struct snd_pcm_oss_setup *csetup)
+ struct snd_pcm_oss_setup *setup)
{
- int err = 0;
+ int idx, err;
struct snd_pcm_oss_file *pcm_oss_file;
- struct snd_pcm_substream *psubstream = NULL, *csubstream = NULL;
- unsigned int f_mode = file->f_mode;
+ struct snd_pcm_substream *substream;
+ fmode_t f_mode = file->f_mode;
- snd_assert(rpcm_oss_file != NULL, return -EINVAL);
- *rpcm_oss_file = NULL;
+ if (rpcm_oss_file)
+ *rpcm_oss_file = NULL;
pcm_oss_file = kzalloc(sizeof(*pcm_oss_file), GFP_KERNEL);
if (pcm_oss_file == NULL)
@@ -1747,76 +2326,39 @@ static int snd_pcm_oss_open_file(struct file *file,
if ((f_mode & (FMODE_WRITE|FMODE_READ)) == (FMODE_WRITE|FMODE_READ) &&
(pcm->info_flags & SNDRV_PCM_INFO_HALF_DUPLEX))
f_mode = FMODE_WRITE;
- if ((f_mode & FMODE_WRITE) && !(psetup && psetup->disable)) {
- if ((err = snd_pcm_open_substream(pcm, SNDRV_PCM_STREAM_PLAYBACK,
- &psubstream)) < 0) {
+
+ file->f_flags &= ~O_APPEND;
+ for (idx = 0; idx < 2; idx++) {
+ if (setup[idx].disable)
+ continue;
+ if (! pcm->streams[idx].substream_count)
+ continue; /* no matching substream */
+ if (idx == SNDRV_PCM_STREAM_PLAYBACK) {
+ if (! (f_mode & FMODE_WRITE))
+ continue;
+ } else {
+ if (! (f_mode & FMODE_READ))
+ continue;
+ }
+ err = snd_pcm_open_substream(pcm, idx, file, &substream);
+ if (err < 0) {
snd_pcm_oss_release_file(pcm_oss_file);
return err;
}
- pcm_oss_file->streams[SNDRV_PCM_STREAM_PLAYBACK] = psubstream;
- }
- if ((f_mode & FMODE_READ) && !(csetup && csetup->disable)) {
- if ((err = snd_pcm_open_substream(pcm, SNDRV_PCM_STREAM_CAPTURE,
- &csubstream)) < 0) {
- if (!(f_mode & FMODE_WRITE) || err != -ENODEV) {
- snd_pcm_oss_release_file(pcm_oss_file);
- return err;
- } else {
- csubstream = NULL;
- }
- }
- pcm_oss_file->streams[SNDRV_PCM_STREAM_CAPTURE] = csubstream;
+
+ pcm_oss_file->streams[idx] = substream;
+ substream->file = pcm_oss_file;
+ snd_pcm_oss_init_substream(substream, &setup[idx], minor);
}
- if (psubstream == NULL && csubstream == NULL) {
+ if (!pcm_oss_file->streams[0] && !pcm_oss_file->streams[1]) {
snd_pcm_oss_release_file(pcm_oss_file);
return -EINVAL;
}
- if (psubstream != NULL) {
- psubstream->oss.file = pcm_oss_file;
- err = snd_pcm_hw_constraints_init(psubstream);
- if (err < 0) {
- snd_printd("snd_pcm_hw_constraint_init failed\n");
- snd_pcm_oss_release_file(pcm_oss_file);
- return err;
- }
- if ((err = psubstream->ops->open(psubstream)) < 0) {
- snd_pcm_oss_release_file(pcm_oss_file);
- return err;
- }
- psubstream->ffile = file;
- err = snd_pcm_hw_constraints_complete(psubstream);
- if (err < 0) {
- snd_printd("snd_pcm_hw_constraint_complete failed\n");
- snd_pcm_oss_release_file(pcm_oss_file);
- return err;
- }
- snd_pcm_oss_init_substream(psubstream, psetup, minor);
- }
- if (csubstream != NULL) {
- csubstream->oss.file = pcm_oss_file;
- err = snd_pcm_hw_constraints_init(csubstream);
- if (err < 0) {
- snd_printd("snd_pcm_hw_constraint_init failed\n");
- snd_pcm_oss_release_file(pcm_oss_file);
- return err;
- }
- if ((err = csubstream->ops->open(csubstream)) < 0) {
- snd_pcm_oss_release_file(pcm_oss_file);
- return err;
- }
- csubstream->ffile = file;
- err = snd_pcm_hw_constraints_complete(csubstream);
- if (err < 0) {
- snd_printd("snd_pcm_hw_constraint_complete failed\n");
- snd_pcm_oss_release_file(pcm_oss_file);
- return err;
- }
- snd_pcm_oss_init_substream(csubstream, csetup, minor);
- }
file->private_data = pcm_oss_file;
- *rpcm_oss_file = pcm_oss_file;
+ if (rpcm_oss_file)
+ *rpcm_oss_file = pcm_oss_file;
return 0;
}
@@ -1825,7 +2367,8 @@ static int snd_task_name(struct task_struct *task, char *name, size_t size)
{
unsigned int idx;
- snd_assert(task != NULL && name != NULL && size >= 2, return -EINVAL);
+ if (snd_BUG_ON(!task || !name || size < 2))
+ return -EINVAL;
for (idx = 0; idx < sizeof(task->comm) && idx + 1 < size; idx++)
name[idx] = task->comm[idx];
name[idx] = '\0';
@@ -1838,10 +2381,14 @@ static int snd_pcm_oss_open(struct inode *inode, struct file *file)
char task_name[32];
struct snd_pcm *pcm;
struct snd_pcm_oss_file *pcm_oss_file;
- struct snd_pcm_oss_setup *psetup = NULL, *csetup = NULL;
+ struct snd_pcm_oss_setup setup[2];
int nonblock;
wait_queue_t wait;
+ err = nonseekable_open(inode, file);
+ if (err < 0)
+ return err;
+
pcm = snd_lookup_oss_minor_data(iminor(inode),
SNDRV_OSS_DEVICE_TYPE_PCM);
if (pcm == NULL) {
@@ -1859,32 +2406,24 @@ static int snd_pcm_oss_open(struct inode *inode, struct file *file)
err = -EFAULT;
goto __error;
}
+ memset(setup, 0, sizeof(setup));
if (file->f_mode & FMODE_WRITE)
- psetup = snd_pcm_oss_look_for_setup(pcm, SNDRV_PCM_STREAM_PLAYBACK, task_name);
+ snd_pcm_oss_look_for_setup(pcm, SNDRV_PCM_STREAM_PLAYBACK,
+ task_name, &setup[0]);
if (file->f_mode & FMODE_READ)
- csetup = snd_pcm_oss_look_for_setup(pcm, SNDRV_PCM_STREAM_CAPTURE, task_name);
+ snd_pcm_oss_look_for_setup(pcm, SNDRV_PCM_STREAM_CAPTURE,
+ task_name, &setup[1]);
nonblock = !!(file->f_flags & O_NONBLOCK);
- if (psetup && !psetup->disable) {
- if (psetup->nonblock)
- nonblock = 1;
- else if (psetup->block)
- nonblock = 0;
- } else if (csetup && !csetup->disable) {
- if (csetup->nonblock)
- nonblock = 1;
- else if (csetup->block)
- nonblock = 0;
- }
if (!nonblock)
nonblock = nonblock_open;
init_waitqueue_entry(&wait, current);
add_wait_queue(&pcm->open_wait, &wait);
- down(&pcm->open_mutex);
+ mutex_lock(&pcm->open_mutex);
while (1) {
err = snd_pcm_oss_open_file(file, pcm, &pcm_oss_file,
- iminor(inode), psetup, csetup);
+ iminor(inode), setup);
if (err >= 0)
break;
if (err == -EAGAIN) {
@@ -1895,18 +2434,23 @@ static int snd_pcm_oss_open(struct inode *inode, struct file *file)
} else
break;
set_current_state(TASK_INTERRUPTIBLE);
- up(&pcm->open_mutex);
+ mutex_unlock(&pcm->open_mutex);
schedule();
- down(&pcm->open_mutex);
+ mutex_lock(&pcm->open_mutex);
+ if (pcm->card->shutdown) {
+ err = -ENODEV;
+ break;
+ }
if (signal_pending(current)) {
err = -ERESTARTSYS;
break;
}
}
remove_wait_queue(&pcm->open_wait, &wait);
- up(&pcm->open_mutex);
+ mutex_unlock(&pcm->open_mutex);
if (err < 0)
goto __error;
+ snd_card_unref(pcm->card);
return err;
__error:
@@ -1914,6 +2458,8 @@ static int snd_pcm_oss_open(struct inode *inode, struct file *file)
__error2:
snd_card_file_remove(pcm->card, file);
__error1:
+ if (pcm)
+ snd_card_unref(pcm->card);
return err;
}
@@ -1927,12 +2473,14 @@ static int snd_pcm_oss_release(struct inode *inode, struct file *file)
substream = pcm_oss_file->streams[SNDRV_PCM_STREAM_PLAYBACK];
if (substream == NULL)
substream = pcm_oss_file->streams[SNDRV_PCM_STREAM_CAPTURE];
- snd_assert(substream != NULL, return -ENXIO);
+ if (snd_BUG_ON(!substream))
+ return -ENXIO;
pcm = substream->pcm;
- snd_pcm_oss_sync(pcm_oss_file);
- down(&pcm->open_mutex);
+ if (!pcm->card->shutdown)
+ snd_pcm_oss_sync(pcm_oss_file);
+ mutex_lock(&pcm->open_mutex);
snd_pcm_oss_release_file(pcm_oss_file);
- up(&pcm->open_mutex);
+ mutex_unlock(&pcm->open_mutex);
wake_up(&pcm->open_wait);
module_put(pcm->card->module);
snd_card_file_remove(pcm->card, file);
@@ -1959,14 +2507,15 @@ static long snd_pcm_oss_ioctl(struct file *file, unsigned int cmd, unsigned long
if (substream != NULL)
break;
}
- snd_assert(substream != NULL, return -ENXIO);
+ if (snd_BUG_ON(idx >= 2))
+ return -ENXIO;
return snd_mixer_oss_ioctl_card(substream->pcm->card, cmd, arg);
}
#endif
if (((cmd >> 8) & 0xff) != 'P')
return -EINVAL;
#ifdef OSS_DEBUG
- printk("pcm_oss: ioctl = 0x%x\n", cmd);
+ pr_debug("pcm_oss: ioctl = 0x%x\n", cmd);
#endif
switch (cmd) {
case SNDCTL_DSP_RESET:
@@ -2093,7 +2642,7 @@ static long snd_pcm_oss_ioctl(struct file *file, unsigned int cmd, unsigned long
case SNDCTL_DSP_PROFILE:
return 0; /* silently ignore */
default:
- snd_printd("pcm_oss: unknown command = 0x%x\n", cmd);
+ pr_debug("pcm_oss: unknown command = 0x%x\n", cmd);
}
return -EINVAL;
}
@@ -2114,12 +2663,15 @@ static ssize_t snd_pcm_oss_read(struct file *file, char __user *buf, size_t coun
substream = pcm_oss_file->streams[SNDRV_PCM_STREAM_CAPTURE];
if (substream == NULL)
return -ENXIO;
+ substream->f_flags = file->f_flags & O_NONBLOCK;
#ifndef OSS_DEBUG
return snd_pcm_oss_read1(substream, buf, count);
#else
{
ssize_t res = snd_pcm_oss_read1(substream, buf, count);
- printk("pcm_oss: read %li bytes (returned %li bytes)\n", (long)count, (long)res);
+ pcm_dbg(substream->pcm,
+ "pcm_oss: read %li bytes (returned %li bytes)\n",
+ (long)count, (long)res);
return res;
}
#endif
@@ -2135,9 +2687,11 @@ static ssize_t snd_pcm_oss_write(struct file *file, const char __user *buf, size
substream = pcm_oss_file->streams[SNDRV_PCM_STREAM_PLAYBACK];
if (substream == NULL)
return -ENXIO;
+ substream->f_flags = file->f_flags & O_NONBLOCK;
result = snd_pcm_oss_write1(substream, buf, count);
#ifdef OSS_DEBUG
- printk("pcm_oss: write %li bytes (wrote %li bytes)\n", (long)count, (long)result);
+ pcm_dbg(substream->pcm, "pcm_oss: write %li bytes (wrote %li bytes)\n",
+ (long)count, (long)result);
#endif
return result;
}
@@ -2145,19 +2699,23 @@ static ssize_t snd_pcm_oss_write(struct file *file, const char __user *buf, size
static int snd_pcm_oss_playback_ready(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
- if (atomic_read(&runtime->mmap_count))
- return runtime->oss.prev_hw_ptr_interrupt != runtime->hw_ptr_interrupt;
+ if (atomic_read(&substream->mmap_count))
+ return runtime->oss.prev_hw_ptr_period !=
+ get_hw_ptr_period(runtime);
else
- return snd_pcm_playback_avail(runtime) >= runtime->oss.period_frames;
+ return snd_pcm_playback_avail(runtime) >=
+ runtime->oss.period_frames;
}
static int snd_pcm_oss_capture_ready(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
- if (atomic_read(&runtime->mmap_count))
- return runtime->oss.prev_hw_ptr_interrupt != runtime->hw_ptr_interrupt;
+ if (atomic_read(&substream->mmap_count))
+ return runtime->oss.prev_hw_ptr_period !=
+ get_hw_ptr_period(runtime);
else
- return snd_pcm_capture_avail(runtime) >= runtime->oss.period_frames;
+ return snd_pcm_capture_avail(runtime) >=
+ runtime->oss.period_frames;
}
static unsigned int snd_pcm_oss_poll(struct file *file, poll_table * wait)
@@ -2211,7 +2769,7 @@ static int snd_pcm_oss_mmap(struct file *file, struct vm_area_struct *area)
int err;
#ifdef OSS_DEBUG
- printk("pcm_oss: mmap begin\n");
+ pr_debug("pcm_oss: mmap begin\n");
#endif
pcm_oss_file = file->private_data;
switch ((area->vm_flags & (VM_READ | VM_WRITE))) {
@@ -2246,8 +2804,10 @@ static int snd_pcm_oss_mmap(struct file *file, struct vm_area_struct *area)
if ((err = snd_pcm_oss_change_params(substream)) < 0)
return err;
}
+#ifdef CONFIG_SND_PCM_OSS_PLUGINS
if (runtime->oss.plugin_first != NULL)
return -EIO;
+#endif
if (area->vm_pgoff != 0)
return -EINVAL;
@@ -2259,7 +2819,8 @@ static int snd_pcm_oss_mmap(struct file *file, struct vm_area_struct *area)
runtime->silence_threshold = 0;
runtime->silence_size = 0;
#ifdef OSS_DEBUG
- printk("pcm_oss: mmap ok, bytes = 0x%x\n", runtime->oss.mmap_bytes);
+ pr_debug("pcm_oss: mmap ok, bytes = 0x%x\n",
+ runtime->oss.mmap_bytes);
#endif
/* In mmap mode we never stop */
runtime->stop_threshold = runtime->boundary;
@@ -2267,7 +2828,7 @@ static int snd_pcm_oss_mmap(struct file *file, struct vm_area_struct *area)
return 0;
}
-#ifdef CONFIG_PROC_FS
+#ifdef CONFIG_SND_VERBOSE_PROCFS
/*
* /proc interface
*/
@@ -2277,7 +2838,7 @@ static void snd_pcm_oss_proc_read(struct snd_info_entry *entry,
{
struct snd_pcm_str *pstr = entry->private_data;
struct snd_pcm_oss_setup *setup = pstr->oss.setup_list;
- down(&pstr->oss.setup_mutex);
+ mutex_lock(&pstr->oss.setup_mutex);
while (setup) {
snd_iprintf(buffer, "%s %u %u%s%s%s%s%s%s\n",
setup->task_name,
@@ -2291,18 +2852,13 @@ static void snd_pcm_oss_proc_read(struct snd_info_entry *entry,
setup->nosilence ? " no-silence" : "");
setup = setup->next;
}
- up(&pstr->oss.setup_mutex);
+ mutex_unlock(&pstr->oss.setup_mutex);
}
static void snd_pcm_oss_proc_free_setup_list(struct snd_pcm_str * pstr)
{
- unsigned int idx;
- struct snd_pcm_substream *substream;
struct snd_pcm_oss_setup *setup, *setupn;
- for (idx = 0, substream = pstr->substream;
- idx < pstr->substream_count; idx++, substream = substream->next)
- substream->oss.setup = NULL;
for (setup = pstr->oss.setup_list, pstr->oss.setup_list = NULL;
setup; setup = setupn) {
setupn = setup->next;
@@ -2316,17 +2872,18 @@ static void snd_pcm_oss_proc_write(struct snd_info_entry *entry,
struct snd_info_buffer *buffer)
{
struct snd_pcm_str *pstr = entry->private_data;
- char line[128], str[32], task_name[32], *ptr;
+ char line[128], str[32], task_name[32];
+ const char *ptr;
int idx1;
struct snd_pcm_oss_setup *setup, *setup1, template;
while (!snd_info_get_line(buffer, line, sizeof(line))) {
- down(&pstr->oss.setup_mutex);
+ mutex_lock(&pstr->oss.setup_mutex);
memset(&template, 0, sizeof(template));
ptr = snd_info_get_str(task_name, line, sizeof(task_name));
if (!strcmp(task_name, "clear") || !strcmp(task_name, "erase")) {
snd_pcm_oss_proc_free_setup_list(pstr);
- up(&pstr->oss.setup_mutex);
+ mutex_unlock(&pstr->oss.setup_mutex);
continue;
}
for (setup = pstr->oss.setup_list; setup; setup = setup->next) {
@@ -2363,22 +2920,29 @@ static void snd_pcm_oss_proc_write(struct snd_info_entry *entry,
}
} while (*str);
if (setup == NULL) {
- setup = kmalloc(sizeof(struct snd_pcm_oss_setup), GFP_KERNEL);
- if (setup) {
- if (pstr->oss.setup_list == NULL) {
- pstr->oss.setup_list = setup;
- } else {
- for (setup1 = pstr->oss.setup_list; setup1->next; setup1 = setup1->next);
- setup1->next = setup;
- }
- template.task_name = kstrdup(task_name, GFP_KERNEL);
- } else {
+ setup = kmalloc(sizeof(*setup), GFP_KERNEL);
+ if (! setup) {
buffer->error = -ENOMEM;
+ mutex_unlock(&pstr->oss.setup_mutex);
+ return;
+ }
+ if (pstr->oss.setup_list == NULL)
+ pstr->oss.setup_list = setup;
+ else {
+ for (setup1 = pstr->oss.setup_list;
+ setup1->next; setup1 = setup1->next);
+ setup1->next = setup;
+ }
+ template.task_name = kstrdup(task_name, GFP_KERNEL);
+ if (! template.task_name) {
+ kfree(setup);
+ buffer->error = -ENOMEM;
+ mutex_unlock(&pstr->oss.setup_mutex);
+ return;
}
}
- if (setup)
- *setup = template;
- up(&pstr->oss.setup_mutex);
+ *setup = template;
+ mutex_unlock(&pstr->oss.setup_mutex);
}
}
@@ -2393,9 +2957,7 @@ static void snd_pcm_oss_proc_init(struct snd_pcm *pcm)
if ((entry = snd_info_create_card_entry(pcm->card, "oss", pstr->proc_root)) != NULL) {
entry->content = SNDRV_INFO_CONTENT_TEXT;
entry->mode = S_IFREG | S_IRUGO | S_IWUSR;
- entry->c.text.read_size = 8192;
entry->c.text.read = snd_pcm_oss_proc_read;
- entry->c.text.write_size = 8192;
entry->c.text.write = snd_pcm_oss_proc_write;
entry->private_data = pstr;
if (snd_info_register(entry) < 0) {
@@ -2412,29 +2974,28 @@ static void snd_pcm_oss_proc_done(struct snd_pcm *pcm)
int stream;
for (stream = 0; stream < 2; ++stream) {
struct snd_pcm_str *pstr = &pcm->streams[stream];
- if (pstr->oss.proc_entry) {
- snd_info_unregister(pstr->oss.proc_entry);
- pstr->oss.proc_entry = NULL;
- snd_pcm_oss_proc_free_setup_list(pstr);
- }
+ snd_info_free_entry(pstr->oss.proc_entry);
+ pstr->oss.proc_entry = NULL;
+ snd_pcm_oss_proc_free_setup_list(pstr);
}
}
-#else /* !CONFIG_PROC_FS */
+#else /* !CONFIG_SND_VERBOSE_PROCFS */
#define snd_pcm_oss_proc_init(pcm)
#define snd_pcm_oss_proc_done(pcm)
-#endif /* CONFIG_PROC_FS */
+#endif /* CONFIG_SND_VERBOSE_PROCFS */
/*
* ENTRY functions
*/
-static struct file_operations snd_pcm_oss_f_reg =
+static const struct file_operations snd_pcm_oss_f_reg =
{
.owner = THIS_MODULE,
.read = snd_pcm_oss_read,
.write = snd_pcm_oss_write,
.open = snd_pcm_oss_open,
.release = snd_pcm_oss_release,
+ .llseek = no_llseek,
.poll = snd_pcm_oss_poll,
.unlocked_ioctl = snd_pcm_oss_ioctl,
.compat_ioctl = snd_pcm_oss_ioctl_compat,
@@ -2443,12 +3004,10 @@ static struct file_operations snd_pcm_oss_f_reg =
static void register_oss_dsp(struct snd_pcm *pcm, int index)
{
- char name[128];
- sprintf(name, "dsp%i%i", pcm->card->number, pcm->device);
if (snd_register_oss_device(SNDRV_OSS_DEVICE_TYPE_PCM,
pcm->card, index, &snd_pcm_oss_f_reg,
- pcm, name) < 0) {
- snd_printk(KERN_ERR "unable to register OSS PCM device %i:%i\n",
+ pcm) < 0) {
+ pcm_err(pcm, "unable to register OSS PCM device %i:%i\n",
pcm->card->number, pcm->device);
}
}
@@ -2497,25 +3056,23 @@ static int snd_pcm_oss_disconnect_minor(struct snd_pcm *pcm)
snd_unregister_oss_device(SNDRV_OSS_DEVICE_TYPE_PCM,
pcm->card, 1);
}
- }
- return 0;
-}
-
-static int snd_pcm_oss_unregister_minor(struct snd_pcm *pcm)
-{
- snd_pcm_oss_disconnect_minor(pcm);
- if (pcm->oss.reg) {
if (dsp_map[pcm->card->number] == (int)pcm->device) {
#ifdef SNDRV_OSS_INFO_DEV_AUDIO
snd_oss_info_unregister(SNDRV_OSS_INFO_DEV_AUDIO, pcm->card->number);
#endif
}
pcm->oss.reg = 0;
- snd_pcm_oss_proc_done(pcm);
}
return 0;
}
+static int snd_pcm_oss_unregister_minor(struct snd_pcm *pcm)
+{
+ snd_pcm_oss_disconnect_minor(pcm);
+ snd_pcm_oss_proc_done(pcm);
+ return 0;
+}
+
static struct snd_pcm_notify snd_pcm_oss_notify =
{
.n_register = snd_pcm_oss_register_minor,
@@ -2531,12 +3088,12 @@ static int __init alsa_pcm_oss_init(void)
/* check device map table */
for (i = 0; i < SNDRV_CARDS; i++) {
if (dsp_map[i] < 0 || dsp_map[i] >= SNDRV_PCM_DEVICES) {
- snd_printk(KERN_ERR "invalid dsp_map[%d] = %d\n",
+ pr_err("ALSA: pcm_oss: invalid dsp_map[%d] = %d\n",
i, dsp_map[i]);
dsp_map[i] = 0;
}
if (adsp_map[i] < 0 || adsp_map[i] >= SNDRV_PCM_DEVICES) {
- snd_printk(KERN_ERR "invalid adsp_map[%d] = %d\n",
+ pr_err("ALSA: pcm_oss: invalid adsp_map[%d] = %d\n",
i, adsp_map[i]);
adsp_map[i] = 1;
}
diff --git a/sound/core/oss/pcm_plugin.c b/sound/core/oss/pcm_plugin.c
index 7e8676880dd..727ac44d39f 100644
--- a/sound/core/oss/pcm_plugin.c
+++ b/sound/core/oss/pcm_plugin.c
@@ -1,6 +1,6 @@
/*
* PCM Plug-In shared (kernel/library) code
- * Copyright (c) 1999 by Jaroslav Kysela <perex@suse.cz>
+ * Copyright (c) 1999 by Jaroslav Kysela <perex@perex.cz>
* Copyright (c) 2000 by Abramo Bagnara <abramo@alsa-project.org>
*
*
@@ -24,7 +24,6 @@
#define PLUGIN_DEBUG
#endif
-#include <sound/driver.h>
#include <linux/slab.h>
#include <linux/time.h>
#include <linux/vmalloc.h>
@@ -36,26 +35,6 @@
#define snd_pcm_plug_first(plug) ((plug)->runtime->oss.plugin_first)
#define snd_pcm_plug_last(plug) ((plug)->runtime->oss.plugin_last)
-static int snd_pcm_plugin_src_channels_mask(struct snd_pcm_plugin *plugin,
- unsigned long *dst_vmask,
- unsigned long **src_vmask)
-{
- unsigned long *vmask = plugin->src_vmask;
- bitmap_copy(vmask, dst_vmask, plugin->src_format.channels);
- *src_vmask = vmask;
- return 0;
-}
-
-static int snd_pcm_plugin_dst_channels_mask(struct snd_pcm_plugin *plugin,
- unsigned long *src_vmask,
- unsigned long **dst_vmask)
-{
- unsigned long *vmask = plugin->dst_vmask;
- bitmap_copy(vmask, src_vmask, plugin->dst_format.channels);
- *dst_vmask = vmask;
- return 0;
-}
-
/*
* because some cards might have rates "very close", we ignore
* all "resampling" requests within +-5%
@@ -83,7 +62,8 @@ static int snd_pcm_plugin_alloc(struct snd_pcm_plugin *plugin, snd_pcm_uframes_t
if ((width = snd_pcm_format_physical_width(format->format)) < 0)
return width;
size = frames * format->channels * width;
- snd_assert((size % 8) == 0, return -ENXIO);
+ if (snd_BUG_ON(size % 8))
+ return -ENXIO;
size /= 8;
if (plugin->buf_frames < frames) {
vfree(plugin->buf);
@@ -105,7 +85,8 @@ static int snd_pcm_plugin_alloc(struct snd_pcm_plugin *plugin, snd_pcm_uframes_t
c->area.step = format->channels * width;
}
} else if (plugin->access == SNDRV_PCM_ACCESS_RW_NONINTERLEAVED) {
- snd_assert((size % format->channels) == 0,);
+ if (snd_BUG_ON(size % format->channels))
+ return -EINVAL;
size /= format->channels;
for (channel = 0; channel < format->channels; channel++, c++) {
c->frames = frames;
@@ -123,13 +104,15 @@ static int snd_pcm_plugin_alloc(struct snd_pcm_plugin *plugin, snd_pcm_uframes_t
int snd_pcm_plug_alloc(struct snd_pcm_substream *plug, snd_pcm_uframes_t frames)
{
int err;
- snd_assert(snd_pcm_plug_first(plug) != NULL, return -ENXIO);
+ if (snd_BUG_ON(!snd_pcm_plug_first(plug)))
+ return -ENXIO;
if (snd_pcm_plug_stream(plug) == SNDRV_PCM_STREAM_PLAYBACK) {
struct snd_pcm_plugin *plugin = snd_pcm_plug_first(plug);
while (plugin->next) {
if (plugin->dst_frames)
frames = plugin->dst_frames(plugin, frames);
- snd_assert(frames > 0, return -ENXIO);
+ if (snd_BUG_ON(frames <= 0))
+ return -ENXIO;
plugin = plugin->next;
err = snd_pcm_plugin_alloc(plugin, frames);
if (err < 0)
@@ -140,7 +123,8 @@ int snd_pcm_plug_alloc(struct snd_pcm_substream *plug, snd_pcm_uframes_t frames)
while (plugin->prev) {
if (plugin->src_frames)
frames = plugin->src_frames(plugin, frames);
- snd_assert(frames > 0, return -ENXIO);
+ if (snd_BUG_ON(frames <= 0))
+ return -ENXIO;
plugin = plugin->prev;
err = snd_pcm_plugin_alloc(plugin, frames);
if (err < 0)
@@ -169,8 +153,10 @@ int snd_pcm_plugin_build(struct snd_pcm_substream *plug,
struct snd_pcm_plugin *plugin;
unsigned int channels;
- snd_assert(plug != NULL, return -ENXIO);
- snd_assert(src_format != NULL && dst_format != NULL, return -ENXIO);
+ if (snd_BUG_ON(!plug))
+ return -ENXIO;
+ if (snd_BUG_ON(!src_format || !dst_format))
+ return -ENXIO;
plugin = kzalloc(sizeof(*plugin) + extra, GFP_KERNEL);
if (plugin == NULL)
return -ENOMEM;
@@ -180,10 +166,10 @@ int snd_pcm_plugin_build(struct snd_pcm_substream *plug,
plugin->access = SNDRV_PCM_ACCESS_RW_INTERLEAVED;
plugin->src_format = *src_format;
plugin->src_width = snd_pcm_format_physical_width(src_format->format);
- snd_assert(plugin->src_width > 0, );
+ snd_BUG_ON(plugin->src_width <= 0);
plugin->dst_format = *dst_format;
plugin->dst_width = snd_pcm_format_physical_width(dst_format->format);
- snd_assert(plugin->dst_width > 0, );
+ snd_BUG_ON(plugin->dst_width <= 0);
if (plugin->stream == SNDRV_PCM_STREAM_PLAYBACK)
channels = src_format->channels;
else
@@ -193,19 +179,7 @@ int snd_pcm_plugin_build(struct snd_pcm_substream *plug,
snd_pcm_plugin_free(plugin);
return -ENOMEM;
}
- plugin->src_vmask = bitmap_alloc(src_format->channels);
- if (plugin->src_vmask == NULL) {
- snd_pcm_plugin_free(plugin);
- return -ENOMEM;
- }
- plugin->dst_vmask = bitmap_alloc(dst_format->channels);
- if (plugin->dst_vmask == NULL) {
- snd_pcm_plugin_free(plugin);
- return -ENOMEM;
- }
plugin->client_channels = snd_pcm_plugin_client_channels;
- plugin->src_channels_mask = snd_pcm_plugin_src_channels_mask;
- plugin->dst_channels_mask = snd_pcm_plugin_dst_channels_mask;
*ret = plugin;
return 0;
}
@@ -218,8 +192,6 @@ int snd_pcm_plugin_free(struct snd_pcm_plugin *plugin)
plugin->private_free(plugin);
kfree(plugin->buf_channels);
vfree(plugin->buf);
- kfree(plugin->src_vmask);
- kfree(plugin->dst_vmask);
kfree(plugin);
return 0;
}
@@ -227,11 +199,13 @@ int snd_pcm_plugin_free(struct snd_pcm_plugin *plugin)
snd_pcm_sframes_t snd_pcm_plug_client_size(struct snd_pcm_substream *plug, snd_pcm_uframes_t drv_frames)
{
struct snd_pcm_plugin *plugin, *plugin_prev, *plugin_next;
- int stream = snd_pcm_plug_stream(plug);
+ int stream;
- snd_assert(plug != NULL, return -ENXIO);
+ if (snd_BUG_ON(!plug))
+ return -ENXIO;
if (drv_frames == 0)
return 0;
+ stream = snd_pcm_plug_stream(plug);
if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
plugin = snd_pcm_plug_last(plug);
while (plugin && drv_frames > 0) {
@@ -257,12 +231,14 @@ snd_pcm_sframes_t snd_pcm_plug_slave_size(struct snd_pcm_substream *plug, snd_pc
{
struct snd_pcm_plugin *plugin, *plugin_prev, *plugin_next;
snd_pcm_sframes_t frames;
- int stream = snd_pcm_plug_stream(plug);
+ int stream;
- snd_assert(plug != NULL, return -ENXIO);
+ if (snd_BUG_ON(!plug))
+ return -ENXIO;
if (clt_frames == 0)
return 0;
frames = clt_frames;
+ stream = snd_pcm_plug_stream(plug);
if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
plugin = snd_pcm_plug_first(plug);
while (plugin && frames > 0) {
@@ -290,7 +266,7 @@ snd_pcm_sframes_t snd_pcm_plug_slave_size(struct snd_pcm_substream *plug, snd_pc
return frames;
}
-static int snd_pcm_plug_formats(struct snd_mask *mask, int format)
+static int snd_pcm_plug_formats(struct snd_mask *mask, snd_pcm_format_t format)
{
struct snd_mask formats = *mask;
u64 linfmts = (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 |
@@ -298,22 +274,28 @@ static int snd_pcm_plug_formats(struct snd_mask *mask, int format)
SNDRV_PCM_FMTBIT_U16_BE | SNDRV_PCM_FMTBIT_S16_BE |
SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_S24_LE |
SNDRV_PCM_FMTBIT_U24_BE | SNDRV_PCM_FMTBIT_S24_BE |
+ SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_S24_3LE |
+ SNDRV_PCM_FMTBIT_U24_3BE | SNDRV_PCM_FMTBIT_S24_3BE |
SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_S32_LE |
SNDRV_PCM_FMTBIT_U32_BE | SNDRV_PCM_FMTBIT_S32_BE);
- snd_mask_set(&formats, SNDRV_PCM_FORMAT_MU_LAW);
+ snd_mask_set(&formats, (__force int)SNDRV_PCM_FORMAT_MU_LAW);
if (formats.bits[0] & (u32)linfmts)
formats.bits[0] |= (u32)linfmts;
if (formats.bits[1] & (u32)(linfmts >> 32))
formats.bits[1] |= (u32)(linfmts >> 32);
- return snd_mask_test(&formats, format);
+ return snd_mask_test(&formats, (__force int)format);
}
-static int preferred_formats[] = {
+static snd_pcm_format_t preferred_formats[] = {
SNDRV_PCM_FORMAT_S16_LE,
SNDRV_PCM_FORMAT_S16_BE,
SNDRV_PCM_FORMAT_U16_LE,
SNDRV_PCM_FORMAT_U16_BE,
+ SNDRV_PCM_FORMAT_S24_3LE,
+ SNDRV_PCM_FORMAT_S24_3BE,
+ SNDRV_PCM_FORMAT_U24_3LE,
+ SNDRV_PCM_FORMAT_U24_3BE,
SNDRV_PCM_FORMAT_S24_LE,
SNDRV_PCM_FORMAT_S24_BE,
SNDRV_PCM_FORMAT_U24_LE,
@@ -326,52 +308,52 @@ static int preferred_formats[] = {
SNDRV_PCM_FORMAT_U8
};
-int snd_pcm_plug_slave_format(int format, struct snd_mask *format_mask)
+snd_pcm_format_t snd_pcm_plug_slave_format(snd_pcm_format_t format,
+ struct snd_mask *format_mask)
{
- if (snd_mask_test(format_mask, format))
+ int i;
+
+ if (snd_mask_test(format_mask, (__force int)format))
return format;
- if (! snd_pcm_plug_formats(format_mask, format))
- return -EINVAL;
+ if (!snd_pcm_plug_formats(format_mask, format))
+ return (__force snd_pcm_format_t)-EINVAL;
if (snd_pcm_format_linear(format)) {
- int width = snd_pcm_format_width(format);
- int unsignd = snd_pcm_format_unsigned(format);
- int big = snd_pcm_format_big_endian(format);
- int format1;
- int wid, width1=width;
- int dwidth1 = 8;
- for (wid = 0; wid < 4; ++wid) {
- int end, big1 = big;
- for (end = 0; end < 2; ++end) {
- int sgn, unsignd1 = unsignd;
- for (sgn = 0; sgn < 2; ++sgn) {
- format1 = snd_pcm_build_linear_format(width1, unsignd1, big1);
- if (format1 >= 0 &&
- snd_mask_test(format_mask, format1))
- goto _found;
- unsignd1 = !unsignd1;
- }
- big1 = !big1;
- }
- if (width1 == 32) {
- dwidth1 = -dwidth1;
- width1 = width;
+ unsigned int width = snd_pcm_format_width(format);
+ int unsignd = snd_pcm_format_unsigned(format) > 0;
+ int big = snd_pcm_format_big_endian(format) > 0;
+ unsigned int badness, best = -1;
+ snd_pcm_format_t best_format = (__force snd_pcm_format_t)-1;
+ for (i = 0; i < ARRAY_SIZE(preferred_formats); i++) {
+ snd_pcm_format_t f = preferred_formats[i];
+ unsigned int w;
+ if (!snd_mask_test(format_mask, (__force int)f))
+ continue;
+ w = snd_pcm_format_width(f);
+ if (w >= width)
+ badness = w - width;
+ else
+ badness = width - w + 32;
+ badness += snd_pcm_format_unsigned(f) != unsignd;
+ badness += snd_pcm_format_big_endian(f) != big;
+ if (badness < best) {
+ best_format = f;
+ best = badness;
}
- width1 += dwidth1;
}
- return -EINVAL;
- _found:
- return format1;
+ if ((__force int)best_format >= 0)
+ return best_format;
+ else
+ return (__force snd_pcm_format_t)-EINVAL;
} else {
- unsigned int i;
switch (format) {
case SNDRV_PCM_FORMAT_MU_LAW:
for (i = 0; i < ARRAY_SIZE(preferred_formats); ++i) {
- int format1 = preferred_formats[i];
- if (snd_mask_test(format_mask, format1))
+ snd_pcm_format_t format1 = preferred_formats[i];
+ if (snd_mask_test(format_mask, (__force int)format1))
return format1;
}
default:
- return -EINVAL;
+ return (__force snd_pcm_format_t)-EINVAL;
}
}
}
@@ -383,7 +365,7 @@ int snd_pcm_plug_format_plugins(struct snd_pcm_substream *plug,
struct snd_pcm_plugin_format tmpformat;
struct snd_pcm_plugin_format dstformat;
struct snd_pcm_plugin_format srcformat;
- int src_access, dst_access;
+ snd_pcm_access_t src_access, dst_access;
struct snd_pcm_plugin *plugin = NULL;
int err;
int stream = snd_pcm_plug_stream(plug);
@@ -429,24 +411,14 @@ int snd_pcm_plug_format_plugins(struct snd_pcm_substream *plug,
dstformat.channels);
/* Format change (linearization) */
- if ((srcformat.format != dstformat.format ||
- !rate_match(srcformat.rate, dstformat.rate) ||
- srcformat.channels != dstformat.channels) &&
- !snd_pcm_format_linear(srcformat.format)) {
- if (snd_pcm_format_linear(dstformat.format))
- tmpformat.format = dstformat.format;
- else
- tmpformat.format = SNDRV_PCM_FORMAT_S16;
- switch (srcformat.format) {
- case SNDRV_PCM_FORMAT_MU_LAW:
- err = snd_pcm_plugin_build_mulaw(plug,
- &srcformat, &tmpformat,
- &plugin);
- break;
- default:
+ if (! rate_match(srcformat.rate, dstformat.rate) &&
+ ! snd_pcm_format_linear(srcformat.format)) {
+ if (srcformat.format != SNDRV_PCM_FORMAT_MU_LAW)
return -EINVAL;
- }
- pdprintf("format change: src=%i, dst=%i returns %i\n", srcformat.format, tmpformat.format, err);
+ tmpformat.format = SNDRV_PCM_FORMAT_S16;
+ err = snd_pcm_plugin_build_mulaw(plug,
+ &srcformat, &tmpformat,
+ &plugin);
if (err < 0)
return err;
err = snd_pcm_plugin_append(plugin);
@@ -460,35 +432,11 @@ int snd_pcm_plug_format_plugins(struct snd_pcm_substream *plug,
/* channels reduction */
if (srcformat.channels > dstformat.channels) {
- int sv = srcformat.channels;
- int dv = dstformat.channels;
- int *ttable = kcalloc(dv * sv, sizeof(*ttable), GFP_KERNEL);
- if (ttable == NULL)
- return -ENOMEM;
-#if 1
- if (sv == 2 && dv == 1) {
- ttable[0] = HALF;
- ttable[1] = HALF;
- } else
-#endif
- {
- int v;
- for (v = 0; v < dv; ++v)
- ttable[v * sv + v] = FULL;
- }
tmpformat.channels = dstformat.channels;
- if (rate_match(srcformat.rate, dstformat.rate) &&
- snd_pcm_format_linear(dstformat.format))
- tmpformat.format = dstformat.format;
- err = snd_pcm_plugin_build_route(plug,
- &srcformat, &tmpformat,
- ttable, &plugin);
- kfree(ttable);
+ err = snd_pcm_plugin_build_route(plug, &srcformat, &tmpformat, &plugin);
pdprintf("channels reduction: src=%i, dst=%i returns %i\n", srcformat.channels, tmpformat.channels, err);
- if (err < 0) {
- snd_pcm_plugin_free(plugin);
+ if (err < 0)
return err;
- }
err = snd_pcm_plugin_append(plugin);
if (err < 0) {
snd_pcm_plugin_free(plugin);
@@ -500,18 +448,29 @@ int snd_pcm_plug_format_plugins(struct snd_pcm_substream *plug,
/* rate resampling */
if (!rate_match(srcformat.rate, dstformat.rate)) {
+ if (srcformat.format != SNDRV_PCM_FORMAT_S16) {
+ /* convert to S16 for resampling */
+ tmpformat.format = SNDRV_PCM_FORMAT_S16;
+ err = snd_pcm_plugin_build_linear(plug,
+ &srcformat, &tmpformat,
+ &plugin);
+ if (err < 0)
+ return err;
+ err = snd_pcm_plugin_append(plugin);
+ if (err < 0) {
+ snd_pcm_plugin_free(plugin);
+ return err;
+ }
+ srcformat = tmpformat;
+ src_access = dst_access;
+ }
tmpformat.rate = dstformat.rate;
- if (srcformat.channels == dstformat.channels &&
- snd_pcm_format_linear(dstformat.format))
- tmpformat.format = dstformat.format;
err = snd_pcm_plugin_build_rate(plug,
&srcformat, &tmpformat,
&plugin);
pdprintf("rate down resampling: src=%i, dst=%i returns %i\n", srcformat.rate, tmpformat.rate, err);
- if (err < 0) {
- snd_pcm_plugin_free(plugin);
+ if (err < 0)
return err;
- }
err = snd_pcm_plugin_append(plugin);
if (err < 0) {
snd_pcm_plugin_free(plugin);
@@ -521,56 +480,11 @@ int snd_pcm_plug_format_plugins(struct snd_pcm_substream *plug,
src_access = dst_access;
}
- /* channels extension */
- if (srcformat.channels < dstformat.channels) {
- int sv = srcformat.channels;
- int dv = dstformat.channels;
- int *ttable = kcalloc(dv * sv, sizeof(*ttable), GFP_KERNEL);
- if (ttable == NULL)
- return -ENOMEM;
-#if 0
- {
- int v;
- for (v = 0; v < sv; ++v)
- ttable[v * sv + v] = FULL;
- }
-#else
- {
- /* Playback is spreaded on all channels */
- int vd, vs;
- for (vd = 0, vs = 0; vd < dv; ++vd) {
- ttable[vd * sv + vs] = FULL;
- vs++;
- if (vs == sv)
- vs = 0;
- }
- }
-#endif
- tmpformat.channels = dstformat.channels;
- if (snd_pcm_format_linear(dstformat.format))
- tmpformat.format = dstformat.format;
- err = snd_pcm_plugin_build_route(plug,
- &srcformat, &tmpformat,
- ttable, &plugin);
- kfree(ttable);
- pdprintf("channels extension: src=%i, dst=%i returns %i\n", srcformat.channels, tmpformat.channels, err);
- if (err < 0) {
- snd_pcm_plugin_free(plugin);
- return err;
- }
- err = snd_pcm_plugin_append(plugin);
- if (err < 0) {
- snd_pcm_plugin_free(plugin);
- return err;
- }
- srcformat = tmpformat;
- src_access = dst_access;
- }
-
/* format change */
if (srcformat.format != dstformat.format) {
tmpformat.format = dstformat.format;
- if (tmpformat.format == SNDRV_PCM_FORMAT_MU_LAW) {
+ if (srcformat.format == SNDRV_PCM_FORMAT_MU_LAW ||
+ tmpformat.format == SNDRV_PCM_FORMAT_MU_LAW) {
err = snd_pcm_plugin_build_mulaw(plug,
&srcformat, &tmpformat,
&plugin);
@@ -595,6 +509,22 @@ int snd_pcm_plug_format_plugins(struct snd_pcm_substream *plug,
src_access = dst_access;
}
+ /* channels extension */
+ if (srcformat.channels < dstformat.channels) {
+ tmpformat.channels = dstformat.channels;
+ err = snd_pcm_plugin_build_route(plug, &srcformat, &tmpformat, &plugin);
+ pdprintf("channels extension: src=%i, dst=%i returns %i\n", srcformat.channels, tmpformat.channels, err);
+ if (err < 0)
+ return err;
+ err = snd_pcm_plugin_append(plugin);
+ if (err < 0) {
+ snd_pcm_plugin_free(plugin);
+ return err;
+ }
+ srcformat = tmpformat;
+ src_access = dst_access;
+ }
+
/* de-interleave */
if (src_access != dst_access) {
err = snd_pcm_plugin_build_copy(plug,
@@ -625,7 +555,8 @@ snd_pcm_sframes_t snd_pcm_plug_client_channels_buf(struct snd_pcm_substream *plu
int width, nchannels, channel;
int stream = snd_pcm_plug_stream(plug);
- snd_assert(buf != NULL, return -ENXIO);
+ if (snd_BUG_ON(!buf))
+ return -ENXIO;
if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
plugin = snd_pcm_plug_first(plug);
format = &plugin->src_format;
@@ -638,7 +569,9 @@ snd_pcm_sframes_t snd_pcm_plug_client_channels_buf(struct snd_pcm_substream *plu
if ((width = snd_pcm_format_physical_width(format->format)) < 0)
return width;
nchannels = format->channels;
- snd_assert(plugin->access == SNDRV_PCM_ACCESS_RW_INTERLEAVED || format->channels <= 1, return -ENXIO);
+ if (snd_BUG_ON(plugin->access != SNDRV_PCM_ACCESS_RW_INTERLEAVED &&
+ format->channels > 1))
+ return -ENXIO;
for (channel = 0; channel < nchannels; channel++, v++) {
v->frames = count;
v->enabled = 1;
@@ -650,92 +583,6 @@ snd_pcm_sframes_t snd_pcm_plug_client_channels_buf(struct snd_pcm_substream *plu
return count;
}
-static int snd_pcm_plug_playback_channels_mask(struct snd_pcm_substream *plug,
- unsigned long *client_vmask)
-{
- struct snd_pcm_plugin *plugin = snd_pcm_plug_last(plug);
- if (plugin == NULL) {
- return 0;
- } else {
- int schannels = plugin->dst_format.channels;
- DECLARE_BITMAP(bs, schannels);
- unsigned long *srcmask;
- unsigned long *dstmask = bs;
- int err;
- bitmap_fill(dstmask, schannels);
-
- while (1) {
- err = plugin->src_channels_mask(plugin, dstmask, &srcmask);
- if (err < 0)
- return err;
- dstmask = srcmask;
- if (plugin->prev == NULL)
- break;
- plugin = plugin->prev;
- }
- bitmap_and(client_vmask, client_vmask, dstmask, plugin->src_format.channels);
- return 0;
- }
-}
-
-static int snd_pcm_plug_playback_disable_useless_channels(struct snd_pcm_substream *plug,
- struct snd_pcm_plugin_channel *src_channels)
-{
- struct snd_pcm_plugin *plugin = snd_pcm_plug_first(plug);
- unsigned int nchannels = plugin->src_format.channels;
- DECLARE_BITMAP(bs, nchannels);
- unsigned long *srcmask = bs;
- int err;
- unsigned int channel;
- for (channel = 0; channel < nchannels; channel++) {
- if (src_channels[channel].enabled)
- set_bit(channel, srcmask);
- else
- clear_bit(channel, srcmask);
- }
- err = snd_pcm_plug_playback_channels_mask(plug, srcmask);
- if (err < 0)
- return err;
- for (channel = 0; channel < nchannels; channel++) {
- if (!test_bit(channel, srcmask))
- src_channels[channel].enabled = 0;
- }
- return 0;
-}
-
-static int snd_pcm_plug_capture_disable_useless_channels(struct snd_pcm_substream *plug,
- struct snd_pcm_plugin_channel *src_channels,
- struct snd_pcm_plugin_channel *client_channels)
-{
- struct snd_pcm_plugin *plugin = snd_pcm_plug_last(plug);
- unsigned int nchannels = plugin->dst_format.channels;
- DECLARE_BITMAP(bs, nchannels);
- unsigned long *dstmask = bs;
- unsigned long *srcmask;
- int err;
- unsigned int channel;
- for (channel = 0; channel < nchannels; channel++) {
- if (client_channels[channel].enabled)
- set_bit(channel, dstmask);
- else
- clear_bit(channel, dstmask);
- }
- while (plugin) {
- err = plugin->src_channels_mask(plugin, dstmask, &srcmask);
- if (err < 0)
- return err;
- dstmask = srcmask;
- plugin = plugin->prev;
- }
- plugin = snd_pcm_plug_first(plug);
- nchannels = plugin->src_format.channels;
- for (channel = 0; channel < nchannels; channel++) {
- if (!test_bit(channel, dstmask))
- src_channels[channel].enabled = 0;
- }
- return 0;
-}
-
snd_pcm_sframes_t snd_pcm_plug_write_transfer(struct snd_pcm_substream *plug, struct snd_pcm_plugin_channel *src_channels, snd_pcm_uframes_t size)
{
struct snd_pcm_plugin *plugin, *next;
@@ -743,9 +590,6 @@ snd_pcm_sframes_t snd_pcm_plug_write_transfer(struct snd_pcm_substream *plug, st
int err;
snd_pcm_sframes_t frames = size;
- if ((err = snd_pcm_plug_playback_disable_useless_channels(plug, src_channels)) < 0)
- return err;
-
plugin = snd_pcm_plug_first(plug);
while (plugin && frames > 0) {
if ((next = plugin->next) != NULL) {
@@ -790,10 +634,6 @@ snd_pcm_sframes_t snd_pcm_plug_read_transfer(struct snd_pcm_substream *plug, str
return err;
}
frames = err;
- if (!plugin->prev) {
- if ((err = snd_pcm_plug_capture_disable_useless_channels(plug, dst_channels, dst_channels_final)) < 0)
- return err;
- }
} else {
dst_channels = dst_channels_final;
}
@@ -807,7 +647,7 @@ snd_pcm_sframes_t snd_pcm_plug_read_transfer(struct snd_pcm_substream *plug, str
}
int snd_pcm_area_silence(const struct snd_pcm_channel_area *dst_area, size_t dst_offset,
- size_t samples, int format)
+ size_t samples, snd_pcm_format_t format)
{
/* FIXME: sub byte resolution and odd dst_offset */
unsigned char *dst;
@@ -854,7 +694,7 @@ int snd_pcm_area_silence(const struct snd_pcm_channel_area *dst_area, size_t dst
int snd_pcm_area_copy(const struct snd_pcm_channel_area *src_area, size_t src_offset,
const struct snd_pcm_channel_area *dst_area, size_t dst_offset,
- size_t samples, int format)
+ size_t samples, snd_pcm_format_t format)
{
/* FIXME: sub byte resolution and odd dst_offset */
char *src, *dst;
diff --git a/sound/core/oss/pcm_plugin.h b/sound/core/oss/pcm_plugin.h
index 29198da615c..a5035c2369a 100644
--- a/sound/core/oss/pcm_plugin.h
+++ b/sound/core/oss/pcm_plugin.h
@@ -3,7 +3,7 @@
/*
* Digital Audio (Plugin interface) abstract layer
- * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
*
*
* This program is free software; you can redistribute it and/or modify
@@ -22,12 +22,7 @@
*
*/
-#include <linux/bitmap.h>
-
-static inline unsigned long *bitmap_alloc(unsigned int nbits)
-{
- return kmalloc(BITS_TO_LONGS(nbits), GFP_KERNEL);
-}
+#ifdef CONFIG_SND_PCM_OSS_PLUGINS
#define snd_pcm_plug_stream(plug) ((plug)->stream)
@@ -51,7 +46,7 @@ struct snd_pcm_plugin_channel {
};
struct snd_pcm_plugin_format {
- int format;
+ snd_pcm_format_t format;
unsigned int rate;
unsigned int channels;
};
@@ -63,18 +58,12 @@ struct snd_pcm_plugin {
struct snd_pcm_plugin_format dst_format; /* destination format */
int src_width; /* sample width in bits */
int dst_width; /* sample width in bits */
- int access;
+ snd_pcm_access_t access;
snd_pcm_sframes_t (*src_frames)(struct snd_pcm_plugin *plugin, snd_pcm_uframes_t dst_frames);
snd_pcm_sframes_t (*dst_frames)(struct snd_pcm_plugin *plugin, snd_pcm_uframes_t src_frames);
snd_pcm_sframes_t (*client_channels)(struct snd_pcm_plugin *plugin,
snd_pcm_uframes_t frames,
struct snd_pcm_plugin_channel **channels);
- int (*src_channels_mask)(struct snd_pcm_plugin *plugin,
- unsigned long *dst_vmask,
- unsigned long **src_vmask);
- int (*dst_channels_mask)(struct snd_pcm_plugin *plugin,
- unsigned long *src_vmask,
- unsigned long **dst_vmask);
snd_pcm_sframes_t (*transfer)(struct snd_pcm_plugin *plugin,
const struct snd_pcm_plugin_channel *src_channels,
struct snd_pcm_plugin_channel *dst_channels,
@@ -90,8 +79,6 @@ struct snd_pcm_plugin {
char *buf;
snd_pcm_uframes_t buf_frames;
struct snd_pcm_plugin_channel *buf_channels;
- unsigned long *src_vmask;
- unsigned long *dst_vmask;
char extra_data[0];
};
@@ -128,7 +115,6 @@ int snd_pcm_plugin_build_rate(struct snd_pcm_substream *handle,
int snd_pcm_plugin_build_route(struct snd_pcm_substream *handle,
struct snd_pcm_plugin_format *src_format,
struct snd_pcm_plugin_format *dst_format,
- int *ttable,
struct snd_pcm_plugin **r_plugin);
int snd_pcm_plugin_build_copy(struct snd_pcm_substream *handle,
struct snd_pcm_plugin_format *src_format,
@@ -139,7 +125,8 @@ int snd_pcm_plug_format_plugins(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_pcm_hw_params *slave_params);
-int snd_pcm_plug_slave_format(int format, struct snd_mask *format_mask);
+snd_pcm_format_t snd_pcm_plug_slave_format(snd_pcm_format_t format,
+ struct snd_mask *format_mask);
int snd_pcm_plugin_append(struct snd_pcm_plugin *plugin);
@@ -160,12 +147,12 @@ snd_pcm_sframes_t snd_pcm_plugin_client_channels(struct snd_pcm_plugin *plugin,
int snd_pcm_area_silence(const struct snd_pcm_channel_area *dst_channel,
size_t dst_offset,
- size_t samples, int format);
+ size_t samples, snd_pcm_format_t format);
int snd_pcm_area_copy(const struct snd_pcm_channel_area *src_channel,
size_t src_offset,
const struct snd_pcm_channel_area *dst_channel,
size_t dst_offset,
- size_t samples, int format);
+ size_t samples, snd_pcm_format_t format);
void *snd_pcm_plug_buf_alloc(struct snd_pcm_substream *plug, snd_pcm_uframes_t size);
void snd_pcm_plug_buf_unlock(struct snd_pcm_substream *plug, void *ptr);
@@ -181,20 +168,18 @@ snd_pcm_sframes_t snd_pcm_oss_readv3(struct snd_pcm_substream *substream,
void **bufs, snd_pcm_uframes_t frames,
int in_kernel);
-#define ROUTE_PLUGIN_RESOLUTION 16
+#else
-int getput_index(int format);
-int copy_index(int format);
-int conv_index(int src_format, int dst_format);
+static inline snd_pcm_sframes_t snd_pcm_plug_client_size(struct snd_pcm_substream *handle, snd_pcm_uframes_t drv_size) { return drv_size; }
+static inline snd_pcm_sframes_t snd_pcm_plug_slave_size(struct snd_pcm_substream *handle, snd_pcm_uframes_t clt_size) { return clt_size; }
+static inline int snd_pcm_plug_slave_format(int format, struct snd_mask *format_mask) { return format; }
-void zero_channel(struct snd_pcm_plugin *plugin,
- const struct snd_pcm_plugin_channel *dst_channel,
- size_t samples);
+#endif
#ifdef PLUGIN_DEBUG
-#define pdprintf( fmt, args... ) printk( "plugin: " fmt, ##args)
+#define pdprintf(fmt, args...) printk(KERN_DEBUG "plugin: " fmt, ##args)
#else
-#define pdprintf( fmt, args... )
+#define pdprintf(fmt, args...)
#endif
#endif /* __PCM_PLUGIN_H */
diff --git a/sound/core/oss/plugin_ops.h b/sound/core/oss/plugin_ops.h
deleted file mode 100644
index 0607e956608..00000000000
--- a/sound/core/oss/plugin_ops.h
+++ /dev/null
@@ -1,536 +0,0 @@
-/*
- * Plugin sample operators with fast switch
- * Copyright (c) 2000 by Jaroslav Kysela <perex@suse.cz>
- *
- *
- * This library is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Library General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-
-#define as_u8(ptr) (*(u_int8_t*)(ptr))
-#define as_u16(ptr) (*(u_int16_t*)(ptr))
-#define as_u32(ptr) (*(u_int32_t*)(ptr))
-#define as_u64(ptr) (*(u_int64_t*)(ptr))
-#define as_s8(ptr) (*(int8_t*)(ptr))
-#define as_s16(ptr) (*(int16_t*)(ptr))
-#define as_s32(ptr) (*(int32_t*)(ptr))
-#define as_s64(ptr) (*(int64_t*)(ptr))
-
-#ifdef COPY_LABELS
-static void *copy_labels[4] = {
- &&copy_8,
- &&copy_16,
- &&copy_32,
- &&copy_64
-};
-#endif
-
-#ifdef COPY_END
-while(0) {
-copy_8: as_s8(dst) = as_s8(src); goto COPY_END;
-copy_16: as_s16(dst) = as_s16(src); goto COPY_END;
-copy_32: as_s32(dst) = as_s32(src); goto COPY_END;
-copy_64: as_s64(dst) = as_s64(src); goto COPY_END;
-}
-#endif
-
-#ifdef CONV_LABELS
-/* src_wid src_endswap sign_toggle dst_wid dst_endswap */
-static void *conv_labels[4 * 2 * 2 * 4 * 2] = {
- &&conv_xxx1_xxx1, /* 8h -> 8h */
- &&conv_xxx1_xxx1, /* 8h -> 8s */
- &&conv_xxx1_xx10, /* 8h -> 16h */
- &&conv_xxx1_xx01, /* 8h -> 16s */
- &&conv_xxx1_x100, /* 8h -> 24h */
- &&conv_xxx1_001x, /* 8h -> 24s */
- &&conv_xxx1_1000, /* 8h -> 32h */
- &&conv_xxx1_0001, /* 8h -> 32s */
- &&conv_xxx1_xxx9, /* 8h ^> 8h */
- &&conv_xxx1_xxx9, /* 8h ^> 8s */
- &&conv_xxx1_xx90, /* 8h ^> 16h */
- &&conv_xxx1_xx09, /* 8h ^> 16s */
- &&conv_xxx1_x900, /* 8h ^> 24h */
- &&conv_xxx1_009x, /* 8h ^> 24s */
- &&conv_xxx1_9000, /* 8h ^> 32h */
- &&conv_xxx1_0009, /* 8h ^> 32s */
- &&conv_xxx1_xxx1, /* 8s -> 8h */
- &&conv_xxx1_xxx1, /* 8s -> 8s */
- &&conv_xxx1_xx10, /* 8s -> 16h */
- &&conv_xxx1_xx01, /* 8s -> 16s */
- &&conv_xxx1_x100, /* 8s -> 24h */
- &&conv_xxx1_001x, /* 8s -> 24s */
- &&conv_xxx1_1000, /* 8s -> 32h */
- &&conv_xxx1_0001, /* 8s -> 32s */
- &&conv_xxx1_xxx9, /* 8s ^> 8h */
- &&conv_xxx1_xxx9, /* 8s ^> 8s */
- &&conv_xxx1_xx90, /* 8s ^> 16h */
- &&conv_xxx1_xx09, /* 8s ^> 16s */
- &&conv_xxx1_x900, /* 8s ^> 24h */
- &&conv_xxx1_009x, /* 8s ^> 24s */
- &&conv_xxx1_9000, /* 8s ^> 32h */
- &&conv_xxx1_0009, /* 8s ^> 32s */
- &&conv_xx12_xxx1, /* 16h -> 8h */
- &&conv_xx12_xxx1, /* 16h -> 8s */
- &&conv_xx12_xx12, /* 16h -> 16h */
- &&conv_xx12_xx21, /* 16h -> 16s */
- &&conv_xx12_x120, /* 16h -> 24h */
- &&conv_xx12_021x, /* 16h -> 24s */
- &&conv_xx12_1200, /* 16h -> 32h */
- &&conv_xx12_0021, /* 16h -> 32s */
- &&conv_xx12_xxx9, /* 16h ^> 8h */
- &&conv_xx12_xxx9, /* 16h ^> 8s */
- &&conv_xx12_xx92, /* 16h ^> 16h */
- &&conv_xx12_xx29, /* 16h ^> 16s */
- &&conv_xx12_x920, /* 16h ^> 24h */
- &&conv_xx12_029x, /* 16h ^> 24s */
- &&conv_xx12_9200, /* 16h ^> 32h */
- &&conv_xx12_0029, /* 16h ^> 32s */
- &&conv_xx12_xxx2, /* 16s -> 8h */
- &&conv_xx12_xxx2, /* 16s -> 8s */
- &&conv_xx12_xx21, /* 16s -> 16h */
- &&conv_xx12_xx12, /* 16s -> 16s */
- &&conv_xx12_x210, /* 16s -> 24h */
- &&conv_xx12_012x, /* 16s -> 24s */
- &&conv_xx12_2100, /* 16s -> 32h */
- &&conv_xx12_0012, /* 16s -> 32s */
- &&conv_xx12_xxxA, /* 16s ^> 8h */
- &&conv_xx12_xxxA, /* 16s ^> 8s */
- &&conv_xx12_xxA1, /* 16s ^> 16h */
- &&conv_xx12_xx1A, /* 16s ^> 16s */
- &&conv_xx12_xA10, /* 16s ^> 24h */
- &&conv_xx12_01Ax, /* 16s ^> 24s */
- &&conv_xx12_A100, /* 16s ^> 32h */
- &&conv_xx12_001A, /* 16s ^> 32s */
- &&conv_x123_xxx1, /* 24h -> 8h */
- &&conv_x123_xxx1, /* 24h -> 8s */
- &&conv_x123_xx12, /* 24h -> 16h */
- &&conv_x123_xx21, /* 24h -> 16s */
- &&conv_x123_x123, /* 24h -> 24h */
- &&conv_x123_321x, /* 24h -> 24s */
- &&conv_x123_1230, /* 24h -> 32h */
- &&conv_x123_0321, /* 24h -> 32s */
- &&conv_x123_xxx9, /* 24h ^> 8h */
- &&conv_x123_xxx9, /* 24h ^> 8s */
- &&conv_x123_xx92, /* 24h ^> 16h */
- &&conv_x123_xx29, /* 24h ^> 16s */
- &&conv_x123_x923, /* 24h ^> 24h */
- &&conv_x123_329x, /* 24h ^> 24s */
- &&conv_x123_9230, /* 24h ^> 32h */
- &&conv_x123_0329, /* 24h ^> 32s */
- &&conv_123x_xxx3, /* 24s -> 8h */
- &&conv_123x_xxx3, /* 24s -> 8s */
- &&conv_123x_xx32, /* 24s -> 16h */
- &&conv_123x_xx23, /* 24s -> 16s */
- &&conv_123x_x321, /* 24s -> 24h */
- &&conv_123x_123x, /* 24s -> 24s */
- &&conv_123x_3210, /* 24s -> 32h */
- &&conv_123x_0123, /* 24s -> 32s */
- &&conv_123x_xxxB, /* 24s ^> 8h */
- &&conv_123x_xxxB, /* 24s ^> 8s */
- &&conv_123x_xxB2, /* 24s ^> 16h */
- &&conv_123x_xx2B, /* 24s ^> 16s */
- &&conv_123x_xB21, /* 24s ^> 24h */
- &&conv_123x_12Bx, /* 24s ^> 24s */
- &&conv_123x_B210, /* 24s ^> 32h */
- &&conv_123x_012B, /* 24s ^> 32s */
- &&conv_1234_xxx1, /* 32h -> 8h */
- &&conv_1234_xxx1, /* 32h -> 8s */
- &&conv_1234_xx12, /* 32h -> 16h */
- &&conv_1234_xx21, /* 32h -> 16s */
- &&conv_1234_x123, /* 32h -> 24h */
- &&conv_1234_321x, /* 32h -> 24s */
- &&conv_1234_1234, /* 32h -> 32h */
- &&conv_1234_4321, /* 32h -> 32s */
- &&conv_1234_xxx9, /* 32h ^> 8h */
- &&conv_1234_xxx9, /* 32h ^> 8s */
- &&conv_1234_xx92, /* 32h ^> 16h */
- &&conv_1234_xx29, /* 32h ^> 16s */
- &&conv_1234_x923, /* 32h ^> 24h */
- &&conv_1234_329x, /* 32h ^> 24s */
- &&conv_1234_9234, /* 32h ^> 32h */
- &&conv_1234_4329, /* 32h ^> 32s */
- &&conv_1234_xxx4, /* 32s -> 8h */
- &&conv_1234_xxx4, /* 32s -> 8s */
- &&conv_1234_xx43, /* 32s -> 16h */
- &&conv_1234_xx34, /* 32s -> 16s */
- &&conv_1234_x432, /* 32s -> 24h */
- &&conv_1234_234x, /* 32s -> 24s */
- &&conv_1234_4321, /* 32s -> 32h */
- &&conv_1234_1234, /* 32s -> 32s */
- &&conv_1234_xxxC, /* 32s ^> 8h */
- &&conv_1234_xxxC, /* 32s ^> 8s */
- &&conv_1234_xxC3, /* 32s ^> 16h */
- &&conv_1234_xx3C, /* 32s ^> 16s */
- &&conv_1234_xC32, /* 32s ^> 24h */
- &&conv_1234_23Cx, /* 32s ^> 24s */
- &&conv_1234_C321, /* 32s ^> 32h */
- &&conv_1234_123C, /* 32s ^> 32s */
-};
-#endif
-
-#ifdef CONV_END
-while(0) {
-conv_xxx1_xxx1: as_u8(dst) = as_u8(src); goto CONV_END;
-conv_xxx1_xx10: as_u16(dst) = (u_int16_t)as_u8(src) << 8; goto CONV_END;
-conv_xxx1_xx01: as_u16(dst) = (u_int16_t)as_u8(src); goto CONV_END;
-conv_xxx1_x100: as_u32(dst) = (u_int32_t)as_u8(src) << 16; goto CONV_END;
-conv_xxx1_001x: as_u32(dst) = (u_int32_t)as_u8(src) << 8; goto CONV_END;
-conv_xxx1_1000: as_u32(dst) = (u_int32_t)as_u8(src) << 24; goto CONV_END;
-conv_xxx1_0001: as_u32(dst) = (u_int32_t)as_u8(src); goto CONV_END;
-conv_xxx1_xxx9: as_u8(dst) = as_u8(src) ^ 0x80; goto CONV_END;
-conv_xxx1_xx90: as_u16(dst) = (u_int16_t)(as_u8(src) ^ 0x80) << 8; goto CONV_END;
-conv_xxx1_xx09: as_u16(dst) = (u_int16_t)(as_u8(src) ^ 0x80); goto CONV_END;
-conv_xxx1_x900: as_u32(dst) = (u_int32_t)(as_u8(src) ^ 0x80) << 16; goto CONV_END;
-conv_xxx1_009x: as_u32(dst) = (u_int32_t)(as_u8(src) ^ 0x80) << 8; goto CONV_END;
-conv_xxx1_9000: as_u32(dst) = (u_int32_t)(as_u8(src) ^ 0x80) << 24; goto CONV_END;
-conv_xxx1_0009: as_u32(dst) = (u_int32_t)(as_u8(src) ^ 0x80); goto CONV_END;
-conv_xx12_xxx1: as_u8(dst) = as_u16(src) >> 8; goto CONV_END;
-conv_xx12_xx12: as_u16(dst) = as_u16(src); goto CONV_END;
-conv_xx12_xx21: as_u16(dst) = swab16(as_u16(src)); goto CONV_END;
-conv_xx12_x120: as_u32(dst) = (u_int32_t)as_u16(src) << 8; goto CONV_END;
-conv_xx12_021x: as_u32(dst) = (u_int32_t)swab16(as_u16(src)) << 8; goto CONV_END;
-conv_xx12_1200: as_u32(dst) = (u_int32_t)as_u16(src) << 16; goto CONV_END;
-conv_xx12_0021: as_u32(dst) = (u_int32_t)swab16(as_u16(src)); goto CONV_END;
-conv_xx12_xxx9: as_u8(dst) = (as_u16(src) >> 8) ^ 0x80; goto CONV_END;
-conv_xx12_xx92: as_u16(dst) = as_u16(src) ^ 0x8000; goto CONV_END;
-conv_xx12_xx29: as_u16(dst) = swab16(as_u16(src)) ^ 0x80; goto CONV_END;
-conv_xx12_x920: as_u32(dst) = (u_int32_t)(as_u16(src) ^ 0x8000) << 8; goto CONV_END;
-conv_xx12_029x: as_u32(dst) = (u_int32_t)(swab16(as_u16(src)) ^ 0x80) << 8; goto CONV_END;
-conv_xx12_9200: as_u32(dst) = (u_int32_t)(as_u16(src) ^ 0x8000) << 16; goto CONV_END;
-conv_xx12_0029: as_u32(dst) = (u_int32_t)(swab16(as_u16(src)) ^ 0x80); goto CONV_END;
-conv_xx12_xxx2: as_u8(dst) = as_u16(src) & 0xff; goto CONV_END;
-conv_xx12_x210: as_u32(dst) = (u_int32_t)swab16(as_u16(src)) << 8; goto CONV_END;
-conv_xx12_012x: as_u32(dst) = (u_int32_t)as_u16(src) << 8; goto CONV_END;
-conv_xx12_2100: as_u32(dst) = (u_int32_t)swab16(as_u16(src)) << 16; goto CONV_END;
-conv_xx12_0012: as_u32(dst) = (u_int32_t)as_u16(src); goto CONV_END;
-conv_xx12_xxxA: as_u8(dst) = (as_u16(src) ^ 0x80) & 0xff; goto CONV_END;
-conv_xx12_xxA1: as_u16(dst) = swab16(as_u16(src) ^ 0x80); goto CONV_END;
-conv_xx12_xx1A: as_u16(dst) = as_u16(src) ^ 0x80; goto CONV_END;
-conv_xx12_xA10: as_u32(dst) = (u_int32_t)swab16(as_u16(src) ^ 0x80) << 8; goto CONV_END;
-conv_xx12_01Ax: as_u32(dst) = (u_int32_t)(as_u16(src) ^ 0x80) << 8; goto CONV_END;
-conv_xx12_A100: as_u32(dst) = (u_int32_t)swab16(as_u16(src) ^ 0x80) << 16; goto CONV_END;
-conv_xx12_001A: as_u32(dst) = (u_int32_t)(as_u16(src) ^ 0x80); goto CONV_END;
-conv_x123_xxx1: as_u8(dst) = as_u32(src) >> 16; goto CONV_END;
-conv_x123_xx12: as_u16(dst) = as_u32(src) >> 8; goto CONV_END;
-conv_x123_xx21: as_u16(dst) = swab16(as_u32(src) >> 8); goto CONV_END;
-conv_x123_x123: as_u32(dst) = as_u32(src); goto CONV_END;
-conv_x123_321x: as_u32(dst) = swab32(as_u32(src)); goto CONV_END;
-conv_x123_1230: as_u32(dst) = as_u32(src) << 8; goto CONV_END;
-conv_x123_0321: as_u32(dst) = swab32(as_u32(src)) >> 8; goto CONV_END;
-conv_x123_xxx9: as_u8(dst) = (as_u32(src) >> 16) ^ 0x80; goto CONV_END;
-conv_x123_xx92: as_u16(dst) = (as_u32(src) >> 8) ^ 0x8000; goto CONV_END;
-conv_x123_xx29: as_u16(dst) = swab16(as_u32(src) >> 8) ^ 0x80; goto CONV_END;
-conv_x123_x923: as_u32(dst) = as_u32(src) ^ 0x800000; goto CONV_END;
-conv_x123_329x: as_u32(dst) = swab32(as_u32(src)) ^ 0x8000; goto CONV_END;
-conv_x123_9230: as_u32(dst) = (as_u32(src) ^ 0x800000) << 8; goto CONV_END;
-conv_x123_0329: as_u32(dst) = (swab32(as_u32(src)) >> 8) ^ 0x80; goto CONV_END;
-conv_123x_xxx3: as_u8(dst) = (as_u32(src) >> 8) & 0xff; goto CONV_END;
-conv_123x_xx32: as_u16(dst) = swab16(as_u32(src) >> 8); goto CONV_END;
-conv_123x_xx23: as_u16(dst) = (as_u32(src) >> 8) & 0xffff; goto CONV_END;
-conv_123x_x321: as_u32(dst) = swab32(as_u32(src)); goto CONV_END;
-conv_123x_123x: as_u32(dst) = as_u32(src); goto CONV_END;
-conv_123x_3210: as_u32(dst) = swab32(as_u32(src)) << 8; goto CONV_END;
-conv_123x_0123: as_u32(dst) = as_u32(src) >> 8; goto CONV_END;
-conv_123x_xxxB: as_u8(dst) = ((as_u32(src) >> 8) & 0xff) ^ 0x80; goto CONV_END;
-conv_123x_xxB2: as_u16(dst) = swab16((as_u32(src) >> 8) ^ 0x80); goto CONV_END;
-conv_123x_xx2B: as_u16(dst) = ((as_u32(src) >> 8) & 0xffff) ^ 0x80; goto CONV_END;
-conv_123x_xB21: as_u32(dst) = swab32(as_u32(src)) ^ 0x800000; goto CONV_END;
-conv_123x_12Bx: as_u32(dst) = as_u32(src) ^ 0x8000; goto CONV_END;
-conv_123x_B210: as_u32(dst) = swab32(as_u32(src) ^ 0x8000) << 8; goto CONV_END;
-conv_123x_012B: as_u32(dst) = (as_u32(src) >> 8) ^ 0x80; goto CONV_END;
-conv_1234_xxx1: as_u8(dst) = as_u32(src) >> 24; goto CONV_END;
-conv_1234_xx12: as_u16(dst) = as_u32(src) >> 16; goto CONV_END;
-conv_1234_xx21: as_u16(dst) = swab16(as_u32(src) >> 16); goto CONV_END;
-conv_1234_x123: as_u32(dst) = as_u32(src) >> 8; goto CONV_END;
-conv_1234_321x: as_u32(dst) = swab32(as_u32(src)) << 8; goto CONV_END;
-conv_1234_1234: as_u32(dst) = as_u32(src); goto CONV_END;
-conv_1234_4321: as_u32(dst) = swab32(as_u32(src)); goto CONV_END;
-conv_1234_xxx9: as_u8(dst) = (as_u32(src) >> 24) ^ 0x80; goto CONV_END;
-conv_1234_xx92: as_u16(dst) = (as_u32(src) >> 16) ^ 0x8000; goto CONV_END;
-conv_1234_xx29: as_u16(dst) = swab16(as_u32(src) >> 16) ^ 0x80; goto CONV_END;
-conv_1234_x923: as_u32(dst) = (as_u32(src) >> 8) ^ 0x800000; goto CONV_END;
-conv_1234_329x: as_u32(dst) = (swab32(as_u32(src)) ^ 0x80) << 8; goto CONV_END;
-conv_1234_9234: as_u32(dst) = as_u32(src) ^ 0x80000000; goto CONV_END;
-conv_1234_4329: as_u32(dst) = swab32(as_u32(src)) ^ 0x80; goto CONV_END;
-conv_1234_xxx4: as_u8(dst) = as_u32(src) & 0xff; goto CONV_END;
-conv_1234_xx43: as_u16(dst) = swab16(as_u32(src)); goto CONV_END;
-conv_1234_xx34: as_u16(dst) = as_u32(src) & 0xffff; goto CONV_END;
-conv_1234_x432: as_u32(dst) = swab32(as_u32(src)) >> 8; goto CONV_END;
-conv_1234_234x: as_u32(dst) = as_u32(src) << 8; goto CONV_END;
-conv_1234_xxxC: as_u8(dst) = (as_u32(src) & 0xff) ^ 0x80; goto CONV_END;
-conv_1234_xxC3: as_u16(dst) = swab16(as_u32(src) ^ 0x80); goto CONV_END;
-conv_1234_xx3C: as_u16(dst) = (as_u32(src) & 0xffff) ^ 0x80; goto CONV_END;
-conv_1234_xC32: as_u32(dst) = (swab32(as_u32(src)) >> 8) ^ 0x800000; goto CONV_END;
-conv_1234_23Cx: as_u32(dst) = (as_u32(src) ^ 0x80) << 8; goto CONV_END;
-conv_1234_C321: as_u32(dst) = swab32(as_u32(src) ^ 0x80); goto CONV_END;
-conv_1234_123C: as_u32(dst) = as_u32(src) ^ 0x80; goto CONV_END;
-}
-#endif
-
-#ifdef GET_S16_LABELS
-/* src_wid src_endswap unsigned */
-static void *get_s16_labels[4 * 2 * 2] = {
- &&get_s16_xxx1_xx10, /* 8h -> 16h */
- &&get_s16_xxx1_xx90, /* 8h ^> 16h */
- &&get_s16_xxx1_xx10, /* 8s -> 16h */
- &&get_s16_xxx1_xx90, /* 8s ^> 16h */
- &&get_s16_xx12_xx12, /* 16h -> 16h */
- &&get_s16_xx12_xx92, /* 16h ^> 16h */
- &&get_s16_xx12_xx21, /* 16s -> 16h */
- &&get_s16_xx12_xxA1, /* 16s ^> 16h */
- &&get_s16_x123_xx12, /* 24h -> 16h */
- &&get_s16_x123_xx92, /* 24h ^> 16h */
- &&get_s16_123x_xx32, /* 24s -> 16h */
- &&get_s16_123x_xxB2, /* 24s ^> 16h */
- &&get_s16_1234_xx12, /* 32h -> 16h */
- &&get_s16_1234_xx92, /* 32h ^> 16h */
- &&get_s16_1234_xx43, /* 32s -> 16h */
- &&get_s16_1234_xxC3, /* 32s ^> 16h */
-};
-#endif
-
-#ifdef GET_S16_END
-while(0) {
-get_s16_xxx1_xx10: sample = (u_int16_t)as_u8(src) << 8; goto GET_S16_END;
-get_s16_xxx1_xx90: sample = (u_int16_t)(as_u8(src) ^ 0x80) << 8; goto GET_S16_END;
-get_s16_xx12_xx12: sample = as_u16(src); goto GET_S16_END;
-get_s16_xx12_xx92: sample = as_u16(src) ^ 0x8000; goto GET_S16_END;
-get_s16_xx12_xx21: sample = swab16(as_u16(src)); goto GET_S16_END;
-get_s16_xx12_xxA1: sample = swab16(as_u16(src) ^ 0x80); goto GET_S16_END;
-get_s16_x123_xx12: sample = as_u32(src) >> 8; goto GET_S16_END;
-get_s16_x123_xx92: sample = (as_u32(src) >> 8) ^ 0x8000; goto GET_S16_END;
-get_s16_123x_xx32: sample = swab16(as_u32(src) >> 8); goto GET_S16_END;
-get_s16_123x_xxB2: sample = swab16((as_u32(src) >> 8) ^ 0x8000); goto GET_S16_END;
-get_s16_1234_xx12: sample = as_u32(src) >> 16; goto GET_S16_END;
-get_s16_1234_xx92: sample = (as_u32(src) >> 16) ^ 0x8000; goto GET_S16_END;
-get_s16_1234_xx43: sample = swab16(as_u32(src)); goto GET_S16_END;
-get_s16_1234_xxC3: sample = swab16(as_u32(src) ^ 0x80); goto GET_S16_END;
-}
-#endif
-
-#ifdef PUT_S16_LABELS
-/* dst_wid dst_endswap unsigned */
-static void *put_s16_labels[4 * 2 * 2] = {
- &&put_s16_xx12_xxx1, /* 16h -> 8h */
- &&put_s16_xx12_xxx9, /* 16h ^> 8h */
- &&put_s16_xx12_xxx1, /* 16h -> 8s */
- &&put_s16_xx12_xxx9, /* 16h ^> 8s */
- &&put_s16_xx12_xx12, /* 16h -> 16h */
- &&put_s16_xx12_xx92, /* 16h ^> 16h */
- &&put_s16_xx12_xx21, /* 16h -> 16s */
- &&put_s16_xx12_xx29, /* 16h ^> 16s */
- &&put_s16_xx12_x120, /* 16h -> 24h */
- &&put_s16_xx12_x920, /* 16h ^> 24h */
- &&put_s16_xx12_021x, /* 16h -> 24s */
- &&put_s16_xx12_029x, /* 16h ^> 24s */
- &&put_s16_xx12_1200, /* 16h -> 32h */
- &&put_s16_xx12_9200, /* 16h ^> 32h */
- &&put_s16_xx12_0021, /* 16h -> 32s */
- &&put_s16_xx12_0029, /* 16h ^> 32s */
-};
-#endif
-
-#ifdef PUT_S16_END
-while (0) {
-put_s16_xx12_xxx1: as_u8(dst) = sample >> 8; goto PUT_S16_END;
-put_s16_xx12_xxx9: as_u8(dst) = (sample >> 8) ^ 0x80; goto PUT_S16_END;
-put_s16_xx12_xx12: as_u16(dst) = sample; goto PUT_S16_END;
-put_s16_xx12_xx92: as_u16(dst) = sample ^ 0x8000; goto PUT_S16_END;
-put_s16_xx12_xx21: as_u16(dst) = swab16(sample); goto PUT_S16_END;
-put_s16_xx12_xx29: as_u16(dst) = swab16(sample) ^ 0x80; goto PUT_S16_END;
-put_s16_xx12_x120: as_u32(dst) = (u_int32_t)sample << 8; goto PUT_S16_END;
-put_s16_xx12_x920: as_u32(dst) = (u_int32_t)(sample ^ 0x8000) << 8; goto PUT_S16_END;
-put_s16_xx12_021x: as_u32(dst) = (u_int32_t)swab16(sample) << 8; goto PUT_S16_END;
-put_s16_xx12_029x: as_u32(dst) = (u_int32_t)(swab16(sample) ^ 0x80) << 8; goto PUT_S16_END;
-put_s16_xx12_1200: as_u32(dst) = (u_int32_t)sample << 16; goto PUT_S16_END;
-put_s16_xx12_9200: as_u32(dst) = (u_int32_t)(sample ^ 0x8000) << 16; goto PUT_S16_END;
-put_s16_xx12_0021: as_u32(dst) = (u_int32_t)swab16(sample); goto PUT_S16_END;
-put_s16_xx12_0029: as_u32(dst) = (u_int32_t)swab16(sample) ^ 0x80; goto PUT_S16_END;
-}
-#endif
-
-#if 0
-#ifdef GET32_LABELS
-/* src_wid src_endswap unsigned */
-static void *get32_labels[4 * 2 * 2] = {
- &&get32_xxx1_1000, /* 8h -> 32h */
- &&get32_xxx1_9000, /* 8h ^> 32h */
- &&get32_xxx1_1000, /* 8s -> 32h */
- &&get32_xxx1_9000, /* 8s ^> 32h */
- &&get32_xx12_1200, /* 16h -> 32h */
- &&get32_xx12_9200, /* 16h ^> 32h */
- &&get32_xx12_2100, /* 16s -> 32h */
- &&get32_xx12_A100, /* 16s ^> 32h */
- &&get32_x123_1230, /* 24h -> 32h */
- &&get32_x123_9230, /* 24h ^> 32h */
- &&get32_123x_3210, /* 24s -> 32h */
- &&get32_123x_B210, /* 24s ^> 32h */
- &&get32_1234_1234, /* 32h -> 32h */
- &&get32_1234_9234, /* 32h ^> 32h */
- &&get32_1234_4321, /* 32s -> 32h */
- &&get32_1234_C321, /* 32s ^> 32h */
-};
-#endif
-
-#ifdef GET32_END
-while (0) {
-get32_xxx1_1000: sample = (u_int32_t)as_u8(src) << 24; goto GET32_END;
-get32_xxx1_9000: sample = (u_int32_t)(as_u8(src) ^ 0x80) << 24; goto GET32_END;
-get32_xx12_1200: sample = (u_int32_t)as_u16(src) << 16; goto GET32_END;
-get32_xx12_9200: sample = (u_int32_t)(as_u16(src) ^ 0x8000) << 16; goto GET32_END;
-get32_xx12_2100: sample = (u_int32_t)swab16(as_u16(src)) << 16; goto GET32_END;
-get32_xx12_A100: sample = (u_int32_t)swab16(as_u16(src) ^ 0x80) << 16; goto GET32_END;
-get32_x123_1230: sample = as_u32(src) << 8; goto GET32_END;
-get32_x123_9230: sample = (as_u32(src) << 8) ^ 0x80000000; goto GET32_END;
-get32_123x_3210: sample = swab32(as_u32(src) >> 8); goto GET32_END;
-get32_123x_B210: sample = swab32((as_u32(src) >> 8) ^ 0x80); goto GET32_END;
-get32_1234_1234: sample = as_u32(src); goto GET32_END;
-get32_1234_9234: sample = as_u32(src) ^ 0x80000000; goto GET32_END;
-get32_1234_4321: sample = swab32(as_u32(src)); goto GET32_END;
-get32_1234_C321: sample = swab32(as_u32(src) ^ 0x80); goto GET32_END;
-}
-#endif
-#endif
-
-#ifdef PUT_U32_LABELS
-/* dst_wid dst_endswap unsigned */
-static void *put_u32_labels[4 * 2 * 2] = {
- &&put_u32_1234_xxx9, /* u32h -> s8h */
- &&put_u32_1234_xxx1, /* u32h -> u8h */
- &&put_u32_1234_xxx9, /* u32h -> s8s */
- &&put_u32_1234_xxx1, /* u32h -> u8s */
- &&put_u32_1234_xx92, /* u32h -> s16h */
- &&put_u32_1234_xx12, /* u32h -> u16h */
- &&put_u32_1234_xx29, /* u32h -> s16s */
- &&put_u32_1234_xx21, /* u32h -> u16s */
- &&put_u32_1234_x923, /* u32h -> s24h */
- &&put_u32_1234_x123, /* u32h -> u24h */
- &&put_u32_1234_329x, /* u32h -> s24s */
- &&put_u32_1234_321x, /* u32h -> u24s */
- &&put_u32_1234_9234, /* u32h -> s32h */
- &&put_u32_1234_1234, /* u32h -> u32h */
- &&put_u32_1234_4329, /* u32h -> s32s */
- &&put_u32_1234_4321, /* u32h -> u32s */
-};
-#endif
-
-#ifdef PUT_U32_END
-while (0) {
-put_u32_1234_xxx1: as_u8(dst) = sample >> 24; goto PUT_U32_END;
-put_u32_1234_xxx9: as_u8(dst) = (sample >> 24) ^ 0x80; goto PUT_U32_END;
-put_u32_1234_xx12: as_u16(dst) = sample >> 16; goto PUT_U32_END;
-put_u32_1234_xx92: as_u16(dst) = (sample >> 16) ^ 0x8000; goto PUT_U32_END;
-put_u32_1234_xx21: as_u16(dst) = swab16(sample >> 16); goto PUT_U32_END;
-put_u32_1234_xx29: as_u16(dst) = swab16(sample >> 16) ^ 0x80; goto PUT_U32_END;
-put_u32_1234_x123: as_u32(dst) = sample >> 8; goto PUT_U32_END;
-put_u32_1234_x923: as_u32(dst) = (sample >> 8) ^ 0x800000; goto PUT_U32_END;
-put_u32_1234_321x: as_u32(dst) = swab32(sample) << 8; goto PUT_U32_END;
-put_u32_1234_329x: as_u32(dst) = (swab32(sample) ^ 0x80) << 8; goto PUT_U32_END;
-put_u32_1234_1234: as_u32(dst) = sample; goto PUT_U32_END;
-put_u32_1234_9234: as_u32(dst) = sample ^ 0x80000000; goto PUT_U32_END;
-put_u32_1234_4321: as_u32(dst) = swab32(sample); goto PUT_U32_END;
-put_u32_1234_4329: as_u32(dst) = swab32(sample) ^ 0x80; goto PUT_U32_END;
-}
-#endif
-
-#ifdef GET_U_LABELS
-/* width endswap unsigned*/
-static void *get_u_labels[4 * 2 * 2] = {
- &&get_u_s8, /* s8 -> u8 */
- &&get_u_u8, /* u8 -> u8 */
- &&get_u_s8, /* s8 -> u8 */
- &&get_u_u8, /* u8 -> u8 */
- &&get_u_s16h, /* s16h -> u16h */
- &&get_u_u16h, /* u16h -> u16h */
- &&get_u_s16s, /* s16s -> u16h */
- &&get_u_u16s, /* u16s -> u16h */
- &&get_u_s24h, /* s24h -> u32h */
- &&get_u_u24h, /* u24h -> u32h */
- &&get_u_s24s, /* s24s -> u32h */
- &&get_u_u24s, /* u24s -> u32h */
- &&get_u_s32h, /* s32h -> u32h */
- &&get_u_u32h, /* u32h -> u32h */
- &&get_u_s32s, /* s32s -> u32h */
- &&get_u_u32s, /* u32s -> u32h */
-};
-#endif
-
-#ifdef GET_U_END
-while (0) {
-get_u_s8: sample = as_u8(src) ^ 0x80; goto GET_U_END;
-get_u_u8: sample = as_u8(src); goto GET_U_END;
-get_u_s16h: sample = as_u16(src) ^ 0x8000; goto GET_U_END;
-get_u_u16h: sample = as_u16(src); goto GET_U_END;
-get_u_s16s: sample = swab16(as_u16(src) ^ 0x80); goto GET_U_END;
-get_u_u16s: sample = swab16(as_u16(src)); goto GET_U_END;
-get_u_s24h: sample = (as_u32(src) ^ 0x800000); goto GET_U_END;
-get_u_u24h: sample = as_u32(src); goto GET_U_END;
-get_u_s24s: sample = swab32(as_u32(src) ^ 0x800000); goto GET_U_END;
-get_u_u24s: sample = swab32(as_u32(src)); goto GET_U_END;
-get_u_s32h: sample = as_u32(src) ^ 0x80000000; goto GET_U_END;
-get_u_u32h: sample = as_u32(src); goto GET_U_END;
-get_u_s32s: sample = swab32(as_u32(src) ^ 0x80); goto GET_U_END;
-get_u_u32s: sample = swab32(as_u32(src)); goto GET_U_END;
-}
-#endif
-
-#if 0
-#ifdef PUT_LABELS
-/* width endswap unsigned */
-static void *put_labels[4 * 2 * 2] = {
- &&put_s8, /* s8 -> s8 */
- &&put_u8, /* u8 -> s8 */
- &&put_s8, /* s8 -> s8 */
- &&put_u8, /* u8 -> s8 */
- &&put_s16h, /* s16h -> s16h */
- &&put_u16h, /* u16h -> s16h */
- &&put_s16s, /* s16s -> s16h */
- &&put_u16s, /* u16s -> s16h */
- &&put_s24h, /* s24h -> s32h */
- &&put_u24h, /* u24h -> s32h */
- &&put_s24s, /* s24s -> s32h */
- &&put_u24s, /* u24s -> s32h */
- &&put_s32h, /* s32h -> s32h */
- &&put_u32h, /* u32h -> s32h */
- &&put_s32s, /* s32s -> s32h */
- &&put_u32s, /* u32s -> s32h */
-};
-#endif
-
-#ifdef PUT_END
-put_s8: as_s8(dst) = sample; goto PUT_END;
-put_u8: as_u8(dst) = sample ^ 0x80; goto PUT_END;
-put_s16h: as_s16(dst) = sample; goto PUT_END;
-put_u16h: as_u16(dst) = sample ^ 0x8000; goto PUT_END;
-put_s16s: as_s16(dst) = swab16(sample); goto PUT_END;
-put_u16s: as_u16(dst) = swab16(sample ^ 0x80); goto PUT_END;
-put_s24h: as_s24(dst) = sample & 0xffffff; goto PUT_END;
-put_u24h: as_u24(dst) = sample ^ 0x80000000; goto PUT_END;
-put_s24s: as_s24(dst) = swab32(sample & 0xffffff); goto PUT_END;
-put_u24s: as_u24(dst) = swab32(sample ^ 0x80); goto PUT_END;
-put_s32h: as_s32(dst) = sample; goto PUT_END;
-put_u32h: as_u32(dst) = sample ^ 0x80000000; goto PUT_END;
-put_s32s: as_s32(dst) = swab32(sample); goto PUT_END;
-put_u32s: as_u32(dst) = swab32(sample ^ 0x80); goto PUT_END;
-#endif
-#endif
-
-#undef as_u8
-#undef as_u16
-#undef as_u32
-#undef as_s8
-#undef as_s16
-#undef as_s32
diff --git a/sound/core/oss/rate.c b/sound/core/oss/rate.c
index 4854cef6fb4..2fa9299a440 100644
--- a/sound/core/oss/rate.c
+++ b/sound/core/oss/rate.c
@@ -1,6 +1,6 @@
/*
* Rate conversion Plug-In
- * Copyright (c) 1999 by Jaroslav Kysela <perex@suse.cz>
+ * Copyright (c) 1999 by Jaroslav Kysela <perex@perex.cz>
*
*
* This library is free software; you can redistribute it and/or modify
@@ -19,7 +19,6 @@
*
*/
-#include <sound/driver.h>
#include <linux/time.h>
#include <sound/core.h>
#include <sound/pcm.h>
@@ -47,7 +46,6 @@ struct rate_priv {
unsigned int pitch;
unsigned int pos;
rate_f func;
- int get, put;
snd_pcm_sframes_t old_src_frames, old_dst_frames;
struct rate_channel channels[0];
};
@@ -71,21 +69,12 @@ static void resample_expand(struct snd_pcm_plugin *plugin,
unsigned int pos = 0;
signed int val;
signed short S1, S2;
- char *src, *dst;
+ signed short *src, *dst;
unsigned int channel;
int src_step, dst_step;
int src_frames1, dst_frames1;
struct rate_priv *data = (struct rate_priv *)plugin->extra_data;
struct rate_channel *rchannels = data->channels;
-
-#define GET_S16_LABELS
-#define PUT_S16_LABELS
-#include "plugin_ops.h"
-#undef GET_S16_LABELS
-#undef PUT_S16_LABELS
- void *get = get_s16_labels[data->get];
- void *put = put_s16_labels[data->put];
- signed short sample = 0;
for (channel = 0; channel < plugin->src_format.channels; channel++) {
pos = data->pos;
@@ -98,10 +87,12 @@ static void resample_expand(struct snd_pcm_plugin *plugin,
continue;
}
dst_channels[channel].enabled = 1;
- src = (char *)src_channels[channel].area.addr + src_channels[channel].area.first / 8;
- dst = (char *)dst_channels[channel].area.addr + dst_channels[channel].area.first / 8;
- src_step = src_channels[channel].area.step / 8;
- dst_step = dst_channels[channel].area.step / 8;
+ src = (signed short *)src_channels[channel].area.addr +
+ src_channels[channel].area.first / 8 / 2;
+ dst = (signed short *)dst_channels[channel].area.addr +
+ dst_channels[channel].area.first / 8 / 2;
+ src_step = src_channels[channel].area.step / 8 / 2;
+ dst_step = dst_channels[channel].area.step / 8 / 2;
src_frames1 = src_frames;
dst_frames1 = dst_frames;
while (dst_frames1-- > 0) {
@@ -109,12 +100,7 @@ static void resample_expand(struct snd_pcm_plugin *plugin,
pos &= R_MASK;
S1 = S2;
if (src_frames1-- > 0) {
- goto *get;
-#define GET_S16_END after_get
-#include "plugin_ops.h"
-#undef GET_S16_END
- after_get:
- S2 = sample;
+ S2 = *src;
src += src_step;
}
}
@@ -123,12 +109,7 @@ static void resample_expand(struct snd_pcm_plugin *plugin,
val = -32768;
else if (val > 32767)
val = 32767;
- sample = val;
- goto *put;
-#define PUT_S16_END after_put
-#include "plugin_ops.h"
-#undef PUT_S16_END
- after_put:
+ *dst = val;
dst += dst_step;
pos += data->pitch;
}
@@ -147,21 +128,12 @@ static void resample_shrink(struct snd_pcm_plugin *plugin,
unsigned int pos = 0;
signed int val;
signed short S1, S2;
- char *src, *dst;
+ signed short *src, *dst;
unsigned int channel;
int src_step, dst_step;
int src_frames1, dst_frames1;
struct rate_priv *data = (struct rate_priv *)plugin->extra_data;
struct rate_channel *rchannels = data->channels;
-
-#define GET_S16_LABELS
-#define PUT_S16_LABELS
-#include "plugin_ops.h"
-#undef GET_S16_LABELS
-#undef PUT_S16_LABELS
- void *get = get_s16_labels[data->get];
- void *put = put_s16_labels[data->put];
- signed short sample = 0;
for (channel = 0; channel < plugin->src_format.channels; ++channel) {
pos = data->pos;
@@ -174,21 +146,18 @@ static void resample_shrink(struct snd_pcm_plugin *plugin,
continue;
}
dst_channels[channel].enabled = 1;
- src = (char *)src_channels[channel].area.addr + src_channels[channel].area.first / 8;
- dst = (char *)dst_channels[channel].area.addr + dst_channels[channel].area.first / 8;
- src_step = src_channels[channel].area.step / 8;
- dst_step = dst_channels[channel].area.step / 8;
+ src = (signed short *)src_channels[channel].area.addr +
+ src_channels[channel].area.first / 8 / 2;
+ dst = (signed short *)dst_channels[channel].area.addr +
+ dst_channels[channel].area.first / 8 / 2;
+ src_step = src_channels[channel].area.step / 8 / 2;
+ dst_step = dst_channels[channel].area.step / 8 / 2;
src_frames1 = src_frames;
dst_frames1 = dst_frames;
while (dst_frames1 > 0) {
S1 = S2;
if (src_frames1-- > 0) {
- goto *get;
-#define GET_S16_END after_get
-#include "plugin_ops.h"
-#undef GET_S16_END
- after_get:
- S2 = sample;
+ S2 = *src;
src += src_step;
}
if (pos & ~R_MASK) {
@@ -198,12 +167,7 @@ static void resample_shrink(struct snd_pcm_plugin *plugin,
val = -32768;
else if (val > 32767)
val = 32767;
- sample = val;
- goto *put;
-#define PUT_S16_END after_put
-#include "plugin_ops.h"
-#undef PUT_S16_END
- after_put:
+ *dst = val;
dst += dst_step;
dst_frames1--;
}
@@ -221,7 +185,8 @@ static snd_pcm_sframes_t rate_src_frames(struct snd_pcm_plugin *plugin, snd_pcm_
struct rate_priv *data;
snd_pcm_sframes_t res;
- snd_assert(plugin != NULL, return -ENXIO);
+ if (snd_BUG_ON(!plugin))
+ return -ENXIO;
if (frames == 0)
return 0;
data = (struct rate_priv *)plugin->extra_data;
@@ -253,7 +218,8 @@ static snd_pcm_sframes_t rate_dst_frames(struct snd_pcm_plugin *plugin, snd_pcm_
struct rate_priv *data;
snd_pcm_sframes_t res;
- snd_assert(plugin != NULL, return -ENXIO);
+ if (snd_BUG_ON(!plugin))
+ return -ENXIO;
if (frames == 0)
return 0;
data = (struct rate_priv *)plugin->extra_data;
@@ -288,19 +254,20 @@ static snd_pcm_sframes_t rate_transfer(struct snd_pcm_plugin *plugin,
snd_pcm_uframes_t dst_frames;
struct rate_priv *data;
- snd_assert(plugin != NULL && src_channels != NULL && dst_channels != NULL, return -ENXIO);
+ if (snd_BUG_ON(!plugin || !src_channels || !dst_channels))
+ return -ENXIO;
if (frames == 0)
return 0;
#ifdef CONFIG_SND_DEBUG
{
unsigned int channel;
for (channel = 0; channel < plugin->src_format.channels; channel++) {
- snd_assert(src_channels[channel].area.first % 8 == 0 &&
- src_channels[channel].area.step % 8 == 0,
- return -ENXIO);
- snd_assert(dst_channels[channel].area.first % 8 == 0 &&
- dst_channels[channel].area.step % 8 == 0,
- return -ENXIO);
+ if (snd_BUG_ON(src_channels[channel].area.first % 8 ||
+ src_channels[channel].area.step % 8))
+ return -ENXIO;
+ if (snd_BUG_ON(dst_channels[channel].area.first % 8 ||
+ dst_channels[channel].area.step % 8))
+ return -ENXIO;
}
}
#endif
@@ -317,7 +284,8 @@ static int rate_action(struct snd_pcm_plugin *plugin,
enum snd_pcm_plugin_action action,
unsigned long udata)
{
- snd_assert(plugin != NULL, return -ENXIO);
+ if (snd_BUG_ON(!plugin))
+ return -ENXIO;
switch (action) {
case INIT:
case PREPARE:
@@ -338,14 +306,20 @@ int snd_pcm_plugin_build_rate(struct snd_pcm_substream *plug,
struct rate_priv *data;
struct snd_pcm_plugin *plugin;
- snd_assert(r_plugin != NULL, return -ENXIO);
+ if (snd_BUG_ON(!r_plugin))
+ return -ENXIO;
*r_plugin = NULL;
- snd_assert(src_format->channels == dst_format->channels, return -ENXIO);
- snd_assert(src_format->channels > 0, return -ENXIO);
- snd_assert(snd_pcm_format_linear(src_format->format) != 0, return -ENXIO);
- snd_assert(snd_pcm_format_linear(dst_format->format) != 0, return -ENXIO);
- snd_assert(src_format->rate != dst_format->rate, return -ENXIO);
+ if (snd_BUG_ON(src_format->channels != dst_format->channels))
+ return -ENXIO;
+ if (snd_BUG_ON(src_format->channels <= 0))
+ return -ENXIO;
+ if (snd_BUG_ON(src_format->format != SNDRV_PCM_FORMAT_S16))
+ return -ENXIO;
+ if (snd_BUG_ON(dst_format->format != SNDRV_PCM_FORMAT_S16))
+ return -ENXIO;
+ if (snd_BUG_ON(src_format->rate == dst_format->rate))
+ return -ENXIO;
err = snd_pcm_plugin_build(plug, "rate conversion",
src_format, dst_format,
@@ -355,11 +329,6 @@ int snd_pcm_plugin_build_rate(struct snd_pcm_substream *plug,
if (err < 0)
return err;
data = (struct rate_priv *)plugin->extra_data;
- data->get = getput_index(src_format->format);
- snd_assert(data->get >= 0 && data->get < 4*2*2, return -EINVAL);
- data->put = getput_index(dst_format->format);
- snd_assert(data->put >= 0 && data->put < 4*2*2, return -EINVAL);
-
if (src_format->rate < dst_format->rate) {
data->pitch = ((src_format->rate << SHIFT) + (dst_format->rate >> 1)) / dst_format->rate;
data->func = resample_expand;
diff --git a/sound/core/oss/route.c b/sound/core/oss/route.c
index 726c5caa3fd..c8171f5783c 100644
--- a/sound/core/oss/route.c
+++ b/sound/core/oss/route.c
@@ -1,5 +1,5 @@
/*
- * Attenuated route Plug-In
+ * Route Plug-In
* Copyright (c) 2000 by Abramo Bagnara <abramo@alsa-project.org>
*
*
@@ -19,503 +19,91 @@
*
*/
-#include <sound/driver.h>
-#include <linux/slab.h>
#include <linux/time.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include "pcm_plugin.h"
-/* The best possible hack to support missing optimization in gcc 2.7.2.3 */
-#if ROUTE_PLUGIN_RESOLUTION & (ROUTE_PLUGIN_RESOLUTION - 1) != 0
-#define div(a) a /= ROUTE_PLUGIN_RESOLUTION
-#elif ROUTE_PLUGIN_RESOLUTION == 16
-#define div(a) a >>= 4
-#else
-#error "Add some code here"
-#endif
-
-struct ttable_dst;
-
-typedef void (*route_channel_f)(struct snd_pcm_plugin *plugin,
- const struct snd_pcm_plugin_channel *src_channels,
- struct snd_pcm_plugin_channel *dst_channel,
- struct ttable_dst *ttable, snd_pcm_uframes_t frames);
-
-struct ttable_src {
- int channel;
- int as_int;
-};
-
-struct ttable_dst {
- int att; /* Attenuated */
- unsigned int nsrcs;
- struct ttable_src *srcs;
- route_channel_f func;
-};
-
-struct route_priv {
- enum {R_UINT32=0, R_UINT64=1} sum_type;
- int get, put;
- int conv;
- int src_sample_size;
- struct ttable_dst ttable[0];
-};
-
-union sum {
- u_int32_t as_uint32;
- u_int64_t as_uint64;
-};
-
-
-static void route_to_channel_from_zero(struct snd_pcm_plugin *plugin,
- const struct snd_pcm_plugin_channel *src_channels,
- struct snd_pcm_plugin_channel *dst_channel,
- struct ttable_dst *ttable,
- snd_pcm_uframes_t frames)
+static void zero_areas(struct snd_pcm_plugin_channel *dvp, int ndsts,
+ snd_pcm_uframes_t frames, snd_pcm_format_t format)
{
- if (dst_channel->wanted)
- snd_pcm_area_silence(&dst_channel->area, 0, frames, plugin->dst_format.format);
- dst_channel->enabled = 0;
-}
-
-static void route_to_channel_from_one(struct snd_pcm_plugin *plugin,
- const struct snd_pcm_plugin_channel *src_channels,
- struct snd_pcm_plugin_channel *dst_channel,
- struct ttable_dst *ttable,
- snd_pcm_uframes_t frames)
-{
-#define CONV_LABELS
-#include "plugin_ops.h"
-#undef CONV_LABELS
- struct route_priv *data = (struct route_priv *)plugin->extra_data;
- void *conv;
- const struct snd_pcm_plugin_channel *src_channel = NULL;
- unsigned int srcidx;
- char *src, *dst;
- int src_step, dst_step;
- for (srcidx = 0; srcidx < ttable->nsrcs; ++srcidx) {
- src_channel = &src_channels[ttable->srcs[srcidx].channel];
- if (src_channel->area.addr != NULL)
- break;
- }
- if (srcidx == ttable->nsrcs) {
- route_to_channel_from_zero(plugin, src_channels, dst_channel, ttable, frames);
- return;
- }
-
- dst_channel->enabled = 1;
- conv = conv_labels[data->conv];
- src = src_channel->area.addr + src_channel->area.first / 8;
- src_step = src_channel->area.step / 8;
- dst = dst_channel->area.addr + dst_channel->area.first / 8;
- dst_step = dst_channel->area.step / 8;
- while (frames-- > 0) {
- goto *conv;
-#define CONV_END after
-#include "plugin_ops.h"
-#undef CONV_END
- after:
- src += src_step;
- dst += dst_step;
+ int dst = 0;
+ for (; dst < ndsts; ++dst) {
+ if (dvp->wanted)
+ snd_pcm_area_silence(&dvp->area, 0, frames, format);
+ dvp->enabled = 0;
+ dvp++;
}
}
-static void route_to_channel(struct snd_pcm_plugin *plugin,
- const struct snd_pcm_plugin_channel *src_channels,
+static inline void copy_area(const struct snd_pcm_plugin_channel *src_channel,
struct snd_pcm_plugin_channel *dst_channel,
- struct ttable_dst *ttable, snd_pcm_uframes_t frames)
+ snd_pcm_uframes_t frames, snd_pcm_format_t format)
{
-#define GET_U_LABELS
-#define PUT_U32_LABELS
-#include "plugin_ops.h"
-#undef GET_U_LABELS
-#undef PUT_U32_LABELS
- static void *zero_labels[2] = { &&zero_int32, &&zero_int64 };
- /* sum_type att */
- static void *add_labels[2 * 2] = { &&add_int32_noatt, &&add_int32_att,
- &&add_int64_noatt, &&add_int64_att,
- };
- /* sum_type att shift */
- static void *norm_labels[2 * 2 * 4] = { NULL,
- &&norm_int32_8_noatt,
- &&norm_int32_16_noatt,
- &&norm_int32_24_noatt,
- NULL,
- &&norm_int32_8_att,
- &&norm_int32_16_att,
- &&norm_int32_24_att,
- &&norm_int64_0_noatt,
- &&norm_int64_8_noatt,
- &&norm_int64_16_noatt,
- &&norm_int64_24_noatt,
- &&norm_int64_0_att,
- &&norm_int64_8_att,
- &&norm_int64_16_att,
- &&norm_int64_24_att,
- };
- struct route_priv *data = (struct route_priv *)plugin->extra_data;
- void *zero, *get, *add, *norm, *put_u32;
- int nsrcs = ttable->nsrcs;
- char *dst;
- int dst_step;
- char *srcs[nsrcs];
- int src_steps[nsrcs];
- struct ttable_src src_tt[nsrcs];
- u_int32_t sample = 0;
- int srcidx, srcidx1 = 0;
- for (srcidx = 0; srcidx < nsrcs; ++srcidx) {
- const struct snd_pcm_plugin_channel *src_channel = &src_channels[ttable->srcs[srcidx].channel];
- if (!src_channel->enabled)
- continue;
- srcs[srcidx1] = src_channel->area.addr + src_channel->area.first / 8;
- src_steps[srcidx1] = src_channel->area.step / 8;
- src_tt[srcidx1] = ttable->srcs[srcidx];
- srcidx1++;
- }
- nsrcs = srcidx1;
- if (nsrcs == 0) {
- route_to_channel_from_zero(plugin, src_channels, dst_channel, ttable, frames);
- return;
- } else if (nsrcs == 1 && src_tt[0].as_int == ROUTE_PLUGIN_RESOLUTION) {
- route_to_channel_from_one(plugin, src_channels, dst_channel, ttable, frames);
- return;
- }
-
dst_channel->enabled = 1;
- zero = zero_labels[data->sum_type];
- get = get_u_labels[data->get];
- add = add_labels[data->sum_type * 2 + ttable->att];
- norm = norm_labels[data->sum_type * 8 + ttable->att * 4 + 4 - data->src_sample_size];
- put_u32 = put_u32_labels[data->put];
- dst = dst_channel->area.addr + dst_channel->area.first / 8;
- dst_step = dst_channel->area.step / 8;
-
- while (frames-- > 0) {
- struct ttable_src *ttp = src_tt;
- union sum sum;
-
- /* Zero sum */
- goto *zero;
- zero_int32:
- sum.as_uint32 = 0;
- goto zero_end;
- zero_int64:
- sum.as_uint64 = 0;
- goto zero_end;
- zero_end:
- for (srcidx = 0; srcidx < nsrcs; ++srcidx) {
- char *src = srcs[srcidx];
-
- /* Get sample */
- goto *get;
-#define GET_U_END after_get
-#include "plugin_ops.h"
-#undef GET_U_END
- after_get:
-
- /* Sum */
- goto *add;
- add_int32_att:
- sum.as_uint32 += sample * ttp->as_int;
- goto after_sum;
- add_int32_noatt:
- if (ttp->as_int)
- sum.as_uint32 += sample;
- goto after_sum;
- add_int64_att:
- sum.as_uint64 += (u_int64_t) sample * ttp->as_int;
- goto after_sum;
- add_int64_noatt:
- if (ttp->as_int)
- sum.as_uint64 += sample;
- goto after_sum;
- after_sum:
- srcs[srcidx] += src_steps[srcidx];
- ttp++;
- }
-
- /* Normalization */
- goto *norm;
- norm_int32_8_att:
- sum.as_uint64 = sum.as_uint32;
- norm_int64_8_att:
- sum.as_uint64 <<= 8;
- norm_int64_0_att:
- div(sum.as_uint64);
- goto norm_int;
-
- norm_int32_16_att:
- sum.as_uint64 = sum.as_uint32;
- norm_int64_16_att:
- sum.as_uint64 <<= 16;
- div(sum.as_uint64);
- goto norm_int;
-
- norm_int32_24_att:
- sum.as_uint64 = sum.as_uint32;
- norm_int64_24_att:
- sum.as_uint64 <<= 24;
- div(sum.as_uint64);
- goto norm_int;
-
- norm_int32_8_noatt:
- sum.as_uint64 = sum.as_uint32;
- norm_int64_8_noatt:
- sum.as_uint64 <<= 8;
- goto norm_int;
-
- norm_int32_16_noatt:
- sum.as_uint64 = sum.as_uint32;
- norm_int64_16_noatt:
- sum.as_uint64 <<= 16;
- goto norm_int;
-
- norm_int32_24_noatt:
- sum.as_uint64 = sum.as_uint32;
- norm_int64_24_noatt:
- sum.as_uint64 <<= 24;
- goto norm_int;
-
- norm_int64_0_noatt:
- norm_int:
- if (sum.as_uint64 > (u_int32_t)0xffffffff)
- sample = (u_int32_t)0xffffffff;
- else
- sample = sum.as_uint64;
- goto after_norm;
-
- after_norm:
-
- /* Put sample */
- goto *put_u32;
-#define PUT_U32_END after_put_u32
-#include "plugin_ops.h"
-#undef PUT_U32_END
- after_put_u32:
-
- dst += dst_step;
- }
-}
-
-static int route_src_channels_mask(struct snd_pcm_plugin *plugin,
- unsigned long *dst_vmask,
- unsigned long **src_vmask)
-{
- struct route_priv *data = (struct route_priv *)plugin->extra_data;
- int schannels = plugin->src_format.channels;
- int dchannels = plugin->dst_format.channels;
- unsigned long *vmask = plugin->src_vmask;
- int channel;
- struct ttable_dst *dp = data->ttable;
- bitmap_zero(vmask, schannels);
- for (channel = 0; channel < dchannels; channel++, dp++) {
- unsigned int src;
- struct ttable_src *sp;
- if (!test_bit(channel, dst_vmask))
- continue;
- sp = dp->srcs;
- for (src = 0; src < dp->nsrcs; src++, sp++)
- set_bit(sp->channel, vmask);
- }
- *src_vmask = vmask;
- return 0;
-}
-
-static int route_dst_channels_mask(struct snd_pcm_plugin *plugin,
- unsigned long *src_vmask,
- unsigned long **dst_vmask)
-{
- struct route_priv *data = (struct route_priv *)plugin->extra_data;
- int dchannels = plugin->dst_format.channels;
- unsigned long *vmask = plugin->dst_vmask;
- int channel;
- struct ttable_dst *dp = data->ttable;
- bitmap_zero(vmask, dchannels);
- for (channel = 0; channel < dchannels; channel++, dp++) {
- unsigned int src;
- struct ttable_src *sp;
- sp = dp->srcs;
- for (src = 0; src < dp->nsrcs; src++, sp++) {
- if (test_bit(sp->channel, src_vmask)) {
- set_bit(channel, vmask);
- break;
- }
- }
- }
- *dst_vmask = vmask;
- return 0;
-}
-
-static void route_free(struct snd_pcm_plugin *plugin)
-{
- struct route_priv *data = (struct route_priv *)plugin->extra_data;
- unsigned int dst_channel;
- for (dst_channel = 0; dst_channel < plugin->dst_format.channels; ++dst_channel) {
- kfree(data->ttable[dst_channel].srcs);
- }
-}
-
-static int route_load_ttable(struct snd_pcm_plugin *plugin,
- const int *src_ttable)
-{
- struct route_priv *data;
- unsigned int src_channel, dst_channel;
- const int *sptr;
- struct ttable_dst *dptr;
- if (src_ttable == NULL)
- return 0;
- data = (struct route_priv *)plugin->extra_data;
- dptr = data->ttable;
- sptr = src_ttable;
- plugin->private_free = route_free;
- for (dst_channel = 0; dst_channel < plugin->dst_format.channels; ++dst_channel) {
- int t = 0;
- int att = 0;
- int nsrcs = 0;
- struct ttable_src srcs[plugin->src_format.channels];
- for (src_channel = 0; src_channel < plugin->src_format.channels; ++src_channel) {
- snd_assert(*sptr >= 0 || *sptr <= FULL, return -ENXIO);
- if (*sptr != 0) {
- srcs[nsrcs].channel = src_channel;
- srcs[nsrcs].as_int = *sptr;
- if (*sptr != FULL)
- att = 1;
- t += *sptr;
- nsrcs++;
- }
- sptr++;
- }
- dptr->att = att;
- dptr->nsrcs = nsrcs;
- if (nsrcs == 0)
- dptr->func = route_to_channel_from_zero;
- else if (nsrcs == 1 && !att)
- dptr->func = route_to_channel_from_one;
- else
- dptr->func = route_to_channel;
- if (nsrcs > 0) {
- int srcidx;
- dptr->srcs = kcalloc(nsrcs, sizeof(*srcs), GFP_KERNEL);
- for(srcidx = 0; srcidx < nsrcs; srcidx++)
- dptr->srcs[srcidx] = srcs[srcidx];
- } else
- dptr->srcs = NULL;
- dptr++;
- }
- return 0;
+ snd_pcm_area_copy(&src_channel->area, 0, &dst_channel->area, 0, frames, format);
}
static snd_pcm_sframes_t route_transfer(struct snd_pcm_plugin *plugin,
- const struct snd_pcm_plugin_channel *src_channels,
- struct snd_pcm_plugin_channel *dst_channels,
- snd_pcm_uframes_t frames)
+ const struct snd_pcm_plugin_channel *src_channels,
+ struct snd_pcm_plugin_channel *dst_channels,
+ snd_pcm_uframes_t frames)
{
- struct route_priv *data;
- int src_nchannels, dst_nchannels;
- int dst_channel;
- struct ttable_dst *ttp;
+ int nsrcs, ndsts, dst;
struct snd_pcm_plugin_channel *dvp;
+ snd_pcm_format_t format;
- snd_assert(plugin != NULL && src_channels != NULL && dst_channels != NULL, return -ENXIO);
+ if (snd_BUG_ON(!plugin || !src_channels || !dst_channels))
+ return -ENXIO;
if (frames == 0)
return 0;
- data = (struct route_priv *)plugin->extra_data;
- src_nchannels = plugin->src_format.channels;
- dst_nchannels = plugin->dst_format.channels;
+ nsrcs = plugin->src_format.channels;
+ ndsts = plugin->dst_format.channels;
-#ifdef CONFIG_SND_DEBUG
- {
- int src_channel;
- for (src_channel = 0; src_channel < src_nchannels; ++src_channel) {
- snd_assert(src_channels[src_channel].area.first % 8 == 0 ||
- src_channels[src_channel].area.step % 8 == 0,
- return -ENXIO);
- }
- for (dst_channel = 0; dst_channel < dst_nchannels; ++dst_channel) {
- snd_assert(dst_channels[dst_channel].area.first % 8 == 0 ||
- dst_channels[dst_channel].area.step % 8 == 0,
- return -ENXIO);
+ format = plugin->dst_format.format;
+ dvp = dst_channels;
+ if (nsrcs <= 1) {
+ /* expand to all channels */
+ for (dst = 0; dst < ndsts; ++dst) {
+ copy_area(src_channels, dvp, frames, format);
+ dvp++;
}
+ return frames;
}
-#endif
- ttp = data->ttable;
- dvp = dst_channels;
- for (dst_channel = 0; dst_channel < dst_nchannels; ++dst_channel) {
- ttp->func(plugin, src_channels, dvp, ttp, frames);
+ for (dst = 0; dst < ndsts && dst < nsrcs; ++dst) {
+ copy_area(src_channels, dvp, frames, format);
dvp++;
- ttp++;
+ src_channels++;
}
+ if (dst < ndsts)
+ zero_areas(dvp, ndsts - dst, frames, format);
return frames;
}
-int getput_index(int format)
-{
- int sign, width, endian;
- sign = !snd_pcm_format_signed(format);
- width = snd_pcm_format_width(format) / 8 - 1;
- if (width < 0 || width > 3) {
- snd_printk(KERN_ERR "snd-pcm-oss: invalid format %d\n", format);
- width = 0;
- }
-#ifdef SNDRV_LITTLE_ENDIAN
- endian = snd_pcm_format_big_endian(format);
-#else
- endian = snd_pcm_format_little_endian(format);
-#endif
- if (endian < 0)
- endian = 0;
- return width * 4 + endian * 2 + sign;
-}
-
int snd_pcm_plugin_build_route(struct snd_pcm_substream *plug,
struct snd_pcm_plugin_format *src_format,
struct snd_pcm_plugin_format *dst_format,
- int *ttable,
struct snd_pcm_plugin **r_plugin)
{
- struct route_priv *data;
struct snd_pcm_plugin *plugin;
int err;
- snd_assert(r_plugin != NULL, return -ENXIO);
+ if (snd_BUG_ON(!r_plugin))
+ return -ENXIO;
*r_plugin = NULL;
- snd_assert(src_format->rate == dst_format->rate, return -ENXIO);
- snd_assert(snd_pcm_format_linear(src_format->format) != 0 &&
- snd_pcm_format_linear(dst_format->format) != 0,
- return -ENXIO);
+ if (snd_BUG_ON(src_format->rate != dst_format->rate))
+ return -ENXIO;
+ if (snd_BUG_ON(src_format->format != dst_format->format))
+ return -ENXIO;
- err = snd_pcm_plugin_build(plug, "attenuated route conversion",
- src_format, dst_format,
- sizeof(struct route_priv) +
- sizeof(data->ttable[0]) * dst_format->channels,
- &plugin);
+ err = snd_pcm_plugin_build(plug, "route conversion",
+ src_format, dst_format, 0, &plugin);
if (err < 0)
return err;
- data = (struct route_priv *)plugin->extra_data;
-
- data->get = getput_index(src_format->format);
- snd_assert(data->get >= 0 && data->get < 4*2*2, return -EINVAL);
- data->put = getput_index(dst_format->format);
- snd_assert(data->get >= 0 && data->get < 4*2*2, return -EINVAL);
- data->conv = conv_index(src_format->format, dst_format->format);
-
- if (snd_pcm_format_width(src_format->format) == 32)
- data->sum_type = R_UINT64;
- else
- data->sum_type = R_UINT32;
- data->src_sample_size = snd_pcm_format_width(src_format->format) / 8;
-
- if ((err = route_load_ttable(plugin, ttable)) < 0) {
- snd_pcm_plugin_free(plugin);
- return err;
- }
plugin->transfer = route_transfer;
- plugin->src_channels_mask = route_src_channels_mask;
- plugin->dst_channels_mask = route_dst_channels_mask;
*r_plugin = plugin;
return 0;
}
diff --git a/sound/core/pcm.c b/sound/core/pcm.c
index 28ca61eb0b0..43932e8dce6 100644
--- a/sound/core/pcm.c
+++ b/sound/core/pcm.c
@@ -1,6 +1,6 @@
/*
* Digital Audio (PCM) abstract layer
- * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
*
*
* This program is free software; you can redistribute it and/or modify
@@ -19,43 +19,77 @@
*
*/
-#include <sound/driver.h>
#include <linux/init.h>
#include <linux/slab.h>
+#include <linux/module.h>
#include <linux/time.h>
+#include <linux/mutex.h>
+#include <linux/device.h>
#include <sound/core.h>
#include <sound/minors.h>
#include <sound/pcm.h>
#include <sound/control.h>
#include <sound/info.h>
-MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>, Abramo Bagnara <abramo@alsa-project.org>");
+MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>, Abramo Bagnara <abramo@alsa-project.org>");
MODULE_DESCRIPTION("Midlevel PCM code for ALSA.");
MODULE_LICENSE("GPL");
static LIST_HEAD(snd_pcm_devices);
static LIST_HEAD(snd_pcm_notify_list);
-static DECLARE_MUTEX(register_mutex);
+static DEFINE_MUTEX(register_mutex);
static int snd_pcm_free(struct snd_pcm *pcm);
static int snd_pcm_dev_free(struct snd_device *device);
static int snd_pcm_dev_register(struct snd_device *device);
static int snd_pcm_dev_disconnect(struct snd_device *device);
-static int snd_pcm_dev_unregister(struct snd_device *device);
-static struct snd_pcm *snd_pcm_search(struct snd_card *card, int device)
+static struct snd_pcm *snd_pcm_get(struct snd_card *card, int device)
{
- struct list_head *p;
struct snd_pcm *pcm;
- list_for_each(p, &snd_pcm_devices) {
- pcm = list_entry(p, struct snd_pcm, list);
+ list_for_each_entry(pcm, &snd_pcm_devices, list) {
+ if (pcm->internal)
+ continue;
if (pcm->card == card && pcm->device == device)
return pcm;
}
return NULL;
}
+static int snd_pcm_next(struct snd_card *card, int device)
+{
+ struct snd_pcm *pcm;
+
+ list_for_each_entry(pcm, &snd_pcm_devices, list) {
+ if (pcm->internal)
+ continue;
+ if (pcm->card == card && pcm->device > device)
+ return pcm->device;
+ else if (pcm->card->number > card->number)
+ return -1;
+ }
+ return -1;
+}
+
+static int snd_pcm_add(struct snd_pcm *newpcm)
+{
+ struct snd_pcm *pcm;
+
+ list_for_each_entry(pcm, &snd_pcm_devices, list) {
+ if (pcm->card == newpcm->card && pcm->device == newpcm->device)
+ return -EBUSY;
+ if (pcm->card->number > newpcm->card->number ||
+ (pcm->card == newpcm->card &&
+ pcm->device > newpcm->device)) {
+ list_add(&newpcm->list, pcm->list.prev);
+ return 0;
+ }
+ }
+ list_add_tail(&newpcm->list, &snd_pcm_devices);
+ return 0;
+}
+
static int snd_pcm_control_ioctl(struct snd_card *card,
struct snd_ctl_file *control,
unsigned int cmd, unsigned long arg)
@@ -67,16 +101,9 @@ static int snd_pcm_control_ioctl(struct snd_card *card,
if (get_user(device, (int __user *)arg))
return -EFAULT;
- down(&register_mutex);
- device = device < 0 ? 0 : device + 1;
- while (device < SNDRV_PCM_DEVICES) {
- if (snd_pcm_search(card, device))
- break;
- device++;
- }
- if (device == SNDRV_PCM_DEVICES)
- device = -1;
- up(&register_mutex);
+ mutex_lock(&register_mutex);
+ device = snd_pcm_next(card, device);
+ mutex_unlock(&register_mutex);
if (put_user(device, (int __user *)arg))
return -EFAULT;
return 0;
@@ -100,8 +127,8 @@ static int snd_pcm_control_ioctl(struct snd_card *card,
return -EINVAL;
if (get_user(subdevice, &info->subdevice))
return -EFAULT;
- down(&register_mutex);
- pcm = snd_pcm_search(card, device);
+ mutex_lock(&register_mutex);
+ pcm = snd_pcm_get(card, device);
if (pcm == NULL) {
err = -ENXIO;
goto _error;
@@ -125,7 +152,7 @@ static int snd_pcm_control_ioctl(struct snd_card *card,
}
err = snd_pcm_info_user(substream, info);
_error:
- up(&register_mutex);
+ mutex_unlock(&register_mutex);
return err;
}
case SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE:
@@ -140,16 +167,8 @@ static int snd_pcm_control_ioctl(struct snd_card *card,
}
return -ENOIOCTLCMD;
}
-#define STATE(v) [SNDRV_PCM_STATE_##v] = #v
-#define STREAM(v) [SNDRV_PCM_STREAM_##v] = #v
-#define READY(v) [SNDRV_PCM_READY_##v] = #v
-#define XRUN(v) [SNDRV_PCM_XRUN_##v] = #v
-#define SILENCE(v) [SNDRV_PCM_SILENCE_##v] = #v
-#define TSTAMP(v) [SNDRV_PCM_TSTAMP_##v] = #v
-#define ACCESS(v) [SNDRV_PCM_ACCESS_##v] = #v
-#define START(v) [SNDRV_PCM_START_##v] = #v
+
#define FORMAT(v) [SNDRV_PCM_FORMAT_##v] = #v
-#define SUBFORMAT(v) [SNDRV_PCM_SUBFORMAT_##v] = #v
static char *snd_pcm_format_names[] = {
FORMAT(S8),
@@ -190,14 +209,34 @@ static char *snd_pcm_format_names[] = {
FORMAT(S18_3BE),
FORMAT(U18_3LE),
FORMAT(U18_3BE),
+ FORMAT(G723_24),
+ FORMAT(G723_24_1B),
+ FORMAT(G723_40),
+ FORMAT(G723_40_1B),
+ FORMAT(DSD_U8),
+ FORMAT(DSD_U16_LE),
};
const char *snd_pcm_format_name(snd_pcm_format_t format)
{
- return snd_pcm_format_names[format];
+ if ((__force unsigned int)format >= ARRAY_SIZE(snd_pcm_format_names))
+ return "Unknown";
+ return snd_pcm_format_names[(__force unsigned int)format];
}
+EXPORT_SYMBOL_GPL(snd_pcm_format_name);
+
+#ifdef CONFIG_SND_VERBOSE_PROCFS
+
+#define STATE(v) [SNDRV_PCM_STATE_##v] = #v
+#define STREAM(v) [SNDRV_PCM_STREAM_##v] = #v
+#define READY(v) [SNDRV_PCM_READY_##v] = #v
+#define XRUN(v) [SNDRV_PCM_XRUN_##v] = #v
+#define SILENCE(v) [SNDRV_PCM_SILENCE_##v] = #v
+#define TSTAMP(v) [SNDRV_PCM_TSTAMP_##v] = #v
+#define ACCESS(v) [SNDRV_PCM_ACCESS_##v] = #v
+#define START(v) [SNDRV_PCM_START_##v] = #v
+#define SUBFORMAT(v) [SNDRV_PCM_SUBFORMAT_##v] = #v
-#ifdef CONFIG_PROC_FS
static char *snd_pcm_stream_names[] = {
STREAM(PLAYBACK),
STREAM(CAPTURE),
@@ -228,38 +267,37 @@ static char *snd_pcm_subformat_names[] = {
static char *snd_pcm_tstamp_mode_names[] = {
TSTAMP(NONE),
- TSTAMP(MMAP),
+ TSTAMP(ENABLE),
};
static const char *snd_pcm_stream_name(int stream)
{
- snd_assert(stream <= SNDRV_PCM_STREAM_LAST, return NULL);
return snd_pcm_stream_names[stream];
}
static const char *snd_pcm_access_name(snd_pcm_access_t access)
{
- return snd_pcm_access_names[access];
+ return snd_pcm_access_names[(__force int)access];
}
static const char *snd_pcm_subformat_name(snd_pcm_subformat_t subformat)
{
- return snd_pcm_subformat_names[subformat];
+ return snd_pcm_subformat_names[(__force int)subformat];
}
static const char *snd_pcm_tstamp_mode_name(int mode)
{
- snd_assert(mode <= SNDRV_PCM_TSTAMP_LAST, return NULL);
return snd_pcm_tstamp_mode_names[mode];
}
static const char *snd_pcm_state_name(snd_pcm_state_t state)
{
- return snd_pcm_state_names[state];
+ return snd_pcm_state_names[(__force int)state];
}
-#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE)
+#if IS_ENABLED(CONFIG_SND_PCM_OSS)
#include <linux/soundcard.h>
+
static const char *snd_pcm_oss_format_name(int format)
{
switch (format) {
@@ -300,7 +338,8 @@ static void snd_pcm_proc_info_read(struct snd_pcm_substream *substream,
info = kmalloc(sizeof(*info), GFP_KERNEL);
if (! info) {
- printk(KERN_DEBUG "snd_pcm_proc_info_read: cannot malloc\n");
+ pcm_dbg(substream->pcm,
+ "snd_pcm_proc_info_read: cannot malloc\n");
return;
}
@@ -334,24 +373,24 @@ static void snd_pcm_stream_proc_info_read(struct snd_info_entry *entry,
static void snd_pcm_substream_proc_info_read(struct snd_info_entry *entry,
struct snd_info_buffer *buffer)
{
- snd_pcm_proc_info_read((struct snd_pcm_substream *)entry->private_data,
- buffer);
+ snd_pcm_proc_info_read(entry->private_data, buffer);
}
static void snd_pcm_substream_proc_hw_params_read(struct snd_info_entry *entry,
struct snd_info_buffer *buffer)
{
struct snd_pcm_substream *substream = entry->private_data;
- struct snd_pcm_runtime *runtime = substream->runtime;
+ struct snd_pcm_runtime *runtime;
+
+ mutex_lock(&substream->pcm->open_mutex);
+ runtime = substream->runtime;
if (!runtime) {
snd_iprintf(buffer, "closed\n");
- return;
+ goto unlock;
}
- snd_pcm_stream_lock_irq(substream);
if (runtime->status->state == SNDRV_PCM_STATE_OPEN) {
snd_iprintf(buffer, "no setup\n");
- snd_pcm_stream_unlock_irq(substream);
- return;
+ goto unlock;
}
snd_iprintf(buffer, "access: %s\n", snd_pcm_access_name(runtime->access));
snd_iprintf(buffer, "format: %s\n", snd_pcm_format_name(runtime->format));
@@ -360,8 +399,7 @@ static void snd_pcm_substream_proc_hw_params_read(struct snd_info_entry *entry,
snd_iprintf(buffer, "rate: %u (%u/%u)\n", runtime->rate, runtime->rate_num, runtime->rate_den);
snd_iprintf(buffer, "period_size: %lu\n", runtime->period_size);
snd_iprintf(buffer, "buffer_size: %lu\n", runtime->buffer_size);
- snd_iprintf(buffer, "tick_time: %u\n", runtime->tick_time);
-#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE)
+#if IS_ENABLED(CONFIG_SND_PCM_OSS)
if (substream->oss.oss) {
snd_iprintf(buffer, "OSS format: %s\n", snd_pcm_oss_format_name(runtime->oss.format));
snd_iprintf(buffer, "OSS channels: %u\n", runtime->oss.channels);
@@ -371,55 +409,60 @@ static void snd_pcm_substream_proc_hw_params_read(struct snd_info_entry *entry,
snd_iprintf(buffer, "OSS period frames: %lu\n", (unsigned long)runtime->oss.period_frames);
}
#endif
- snd_pcm_stream_unlock_irq(substream);
+ unlock:
+ mutex_unlock(&substream->pcm->open_mutex);
}
static void snd_pcm_substream_proc_sw_params_read(struct snd_info_entry *entry,
struct snd_info_buffer *buffer)
{
struct snd_pcm_substream *substream = entry->private_data;
- struct snd_pcm_runtime *runtime = substream->runtime;
+ struct snd_pcm_runtime *runtime;
+
+ mutex_lock(&substream->pcm->open_mutex);
+ runtime = substream->runtime;
if (!runtime) {
snd_iprintf(buffer, "closed\n");
- return;
+ goto unlock;
}
- snd_pcm_stream_lock_irq(substream);
if (runtime->status->state == SNDRV_PCM_STATE_OPEN) {
snd_iprintf(buffer, "no setup\n");
- snd_pcm_stream_unlock_irq(substream);
- return;
+ goto unlock;
}
snd_iprintf(buffer, "tstamp_mode: %s\n", snd_pcm_tstamp_mode_name(runtime->tstamp_mode));
snd_iprintf(buffer, "period_step: %u\n", runtime->period_step);
- snd_iprintf(buffer, "sleep_min: %u\n", runtime->sleep_min);
snd_iprintf(buffer, "avail_min: %lu\n", runtime->control->avail_min);
- snd_iprintf(buffer, "xfer_align: %lu\n", runtime->xfer_align);
snd_iprintf(buffer, "start_threshold: %lu\n", runtime->start_threshold);
snd_iprintf(buffer, "stop_threshold: %lu\n", runtime->stop_threshold);
snd_iprintf(buffer, "silence_threshold: %lu\n", runtime->silence_threshold);
snd_iprintf(buffer, "silence_size: %lu\n", runtime->silence_size);
snd_iprintf(buffer, "boundary: %lu\n", runtime->boundary);
- snd_pcm_stream_unlock_irq(substream);
+ unlock:
+ mutex_unlock(&substream->pcm->open_mutex);
}
static void snd_pcm_substream_proc_status_read(struct snd_info_entry *entry,
struct snd_info_buffer *buffer)
{
struct snd_pcm_substream *substream = entry->private_data;
- struct snd_pcm_runtime *runtime = substream->runtime;
+ struct snd_pcm_runtime *runtime;
struct snd_pcm_status status;
int err;
+
+ mutex_lock(&substream->pcm->open_mutex);
+ runtime = substream->runtime;
if (!runtime) {
snd_iprintf(buffer, "closed\n");
- return;
+ goto unlock;
}
memset(&status, 0, sizeof(status));
err = snd_pcm_status(substream, &status);
if (err < 0) {
snd_iprintf(buffer, "error %d\n", err);
- return;
+ goto unlock;
}
snd_iprintf(buffer, "state: %s\n", snd_pcm_state_name(status.state));
+ snd_iprintf(buffer, "owner_pid : %d\n", pid_vnr(substream->pid));
snd_iprintf(buffer, "trigger_time: %ld.%09ld\n",
status.trigger_tstamp.tv_sec, status.trigger_tstamp.tv_nsec);
snd_iprintf(buffer, "tstamp : %ld.%09ld\n",
@@ -430,9 +473,11 @@ static void snd_pcm_substream_proc_status_read(struct snd_info_entry *entry,
snd_iprintf(buffer, "-----\n");
snd_iprintf(buffer, "hw_ptr : %ld\n", runtime->status->hw_ptr);
snd_iprintf(buffer, "appl_ptr : %ld\n", runtime->control->appl_ptr);
+ unlock:
+ mutex_unlock(&substream->pcm->open_mutex);
}
-#ifdef CONFIG_SND_DEBUG
+#ifdef CONFIG_SND_PCM_XRUN_DEBUG
static void snd_pcm_xrun_debug_read(struct snd_info_entry *entry,
struct snd_info_buffer *buffer)
{
@@ -468,7 +513,7 @@ static int snd_pcm_stream_proc_init(struct snd_pcm_str *pstr)
pstr->proc_root = entry;
if ((entry = snd_info_create_card_entry(pcm->card, "info", pstr->proc_root)) != NULL) {
- snd_info_set_text_ops(entry, pstr, 256, snd_pcm_stream_proc_info_read);
+ snd_info_set_text_ops(entry, pstr, snd_pcm_stream_proc_info_read);
if (snd_info_register(entry) < 0) {
snd_info_free_entry(entry);
entry = NULL;
@@ -476,12 +521,10 @@ static int snd_pcm_stream_proc_init(struct snd_pcm_str *pstr)
}
pstr->proc_info_entry = entry;
-#ifdef CONFIG_SND_DEBUG
+#ifdef CONFIG_SND_PCM_XRUN_DEBUG
if ((entry = snd_info_create_card_entry(pcm->card, "xrun_debug",
pstr->proc_root)) != NULL) {
- entry->c.text.read_size = 64;
entry->c.text.read = snd_pcm_xrun_debug_read;
- entry->c.text.write_size = 64;
entry->c.text.write = snd_pcm_xrun_debug_write;
entry->mode |= S_IWUSR;
entry->private_data = pstr;
@@ -497,20 +540,14 @@ static int snd_pcm_stream_proc_init(struct snd_pcm_str *pstr)
static int snd_pcm_stream_proc_done(struct snd_pcm_str *pstr)
{
-#ifdef CONFIG_SND_DEBUG
- if (pstr->proc_xrun_debug_entry) {
- snd_info_unregister(pstr->proc_xrun_debug_entry);
- pstr->proc_xrun_debug_entry = NULL;
- }
+#ifdef CONFIG_SND_PCM_XRUN_DEBUG
+ snd_info_free_entry(pstr->proc_xrun_debug_entry);
+ pstr->proc_xrun_debug_entry = NULL;
#endif
- if (pstr->proc_info_entry) {
- snd_info_unregister(pstr->proc_info_entry);
- pstr->proc_info_entry = NULL;
- }
- if (pstr->proc_root) {
- snd_info_unregister(pstr->proc_root);
- pstr->proc_root = NULL;
- }
+ snd_info_free_entry(pstr->proc_info_entry);
+ pstr->proc_info_entry = NULL;
+ snd_info_free_entry(pstr->proc_root);
+ pstr->proc_root = NULL;
return 0;
}
@@ -533,7 +570,8 @@ static int snd_pcm_substream_proc_init(struct snd_pcm_substream *substream)
substream->proc_root = entry;
if ((entry = snd_info_create_card_entry(card, "info", substream->proc_root)) != NULL) {
- snd_info_set_text_ops(entry, substream, 256, snd_pcm_substream_proc_info_read);
+ snd_info_set_text_ops(entry, substream,
+ snd_pcm_substream_proc_info_read);
if (snd_info_register(entry) < 0) {
snd_info_free_entry(entry);
entry = NULL;
@@ -542,7 +580,8 @@ static int snd_pcm_substream_proc_init(struct snd_pcm_substream *substream)
substream->proc_info_entry = entry;
if ((entry = snd_info_create_card_entry(card, "hw_params", substream->proc_root)) != NULL) {
- snd_info_set_text_ops(entry, substream, 256, snd_pcm_substream_proc_hw_params_read);
+ snd_info_set_text_ops(entry, substream,
+ snd_pcm_substream_proc_hw_params_read);
if (snd_info_register(entry) < 0) {
snd_info_free_entry(entry);
entry = NULL;
@@ -551,7 +590,8 @@ static int snd_pcm_substream_proc_init(struct snd_pcm_substream *substream)
substream->proc_hw_params_entry = entry;
if ((entry = snd_info_create_card_entry(card, "sw_params", substream->proc_root)) != NULL) {
- snd_info_set_text_ops(entry, substream, 256, snd_pcm_substream_proc_sw_params_read);
+ snd_info_set_text_ops(entry, substream,
+ snd_pcm_substream_proc_sw_params_read);
if (snd_info_register(entry) < 0) {
snd_info_free_entry(entry);
entry = NULL;
@@ -560,7 +600,8 @@ static int snd_pcm_substream_proc_init(struct snd_pcm_substream *substream)
substream->proc_sw_params_entry = entry;
if ((entry = snd_info_create_card_entry(card, "status", substream->proc_root)) != NULL) {
- snd_info_set_text_ops(entry, substream, 256, snd_pcm_substream_proc_status_read);
+ snd_info_set_text_ops(entry, substream,
+ snd_pcm_substream_proc_status_read);
if (snd_info_register(entry) < 0) {
snd_info_free_entry(entry);
entry = NULL;
@@ -570,37 +611,27 @@ static int snd_pcm_substream_proc_init(struct snd_pcm_substream *substream)
return 0;
}
-
+
static int snd_pcm_substream_proc_done(struct snd_pcm_substream *substream)
{
- if (substream->proc_info_entry) {
- snd_info_unregister(substream->proc_info_entry);
- substream->proc_info_entry = NULL;
- }
- if (substream->proc_hw_params_entry) {
- snd_info_unregister(substream->proc_hw_params_entry);
- substream->proc_hw_params_entry = NULL;
- }
- if (substream->proc_sw_params_entry) {
- snd_info_unregister(substream->proc_sw_params_entry);
- substream->proc_sw_params_entry = NULL;
- }
- if (substream->proc_status_entry) {
- snd_info_unregister(substream->proc_status_entry);
- substream->proc_status_entry = NULL;
- }
- if (substream->proc_root) {
- snd_info_unregister(substream->proc_root);
- substream->proc_root = NULL;
- }
+ snd_info_free_entry(substream->proc_info_entry);
+ substream->proc_info_entry = NULL;
+ snd_info_free_entry(substream->proc_hw_params_entry);
+ substream->proc_hw_params_entry = NULL;
+ snd_info_free_entry(substream->proc_sw_params_entry);
+ substream->proc_sw_params_entry = NULL;
+ snd_info_free_entry(substream->proc_status_entry);
+ substream->proc_status_entry = NULL;
+ snd_info_free_entry(substream->proc_root);
+ substream->proc_root = NULL;
return 0;
}
-#else /* !CONFIG_PROC_FS */
+#else /* !CONFIG_SND_VERBOSE_PROCFS */
static inline int snd_pcm_stream_proc_init(struct snd_pcm_str *pstr) { return 0; }
static inline int snd_pcm_stream_proc_done(struct snd_pcm_str *pstr) { return 0; }
static inline int snd_pcm_substream_proc_init(struct snd_pcm_substream *substream) { return 0; }
static inline int snd_pcm_substream_proc_done(struct snd_pcm_substream *substream) { return 0; }
-#endif /* CONFIG_PROC_FS */
+#endif /* CONFIG_SND_VERBOSE_PROCFS */
/**
* snd_pcm_new_stream - create a new PCM stream
@@ -613,7 +644,7 @@ static inline int snd_pcm_substream_proc_done(struct snd_pcm_substream *substrea
* calling this, i.e. zero must be given to the argument of
* snd_pcm_new().
*
- * Returns zero if successful, or a negative error code on failure.
+ * Return: Zero if successful, or a negative error code on failure.
*/
int snd_pcm_new_stream(struct snd_pcm *pcm, int stream, int substream_count)
{
@@ -621,16 +652,16 @@ int snd_pcm_new_stream(struct snd_pcm *pcm, int stream, int substream_count)
struct snd_pcm_str *pstr = &pcm->streams[stream];
struct snd_pcm_substream *substream, *prev;
-#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE)
- init_MUTEX(&pstr->oss.setup_mutex);
+#if IS_ENABLED(CONFIG_SND_PCM_OSS)
+ mutex_init(&pstr->oss.setup_mutex);
#endif
pstr->stream = stream;
pstr->pcm = pcm;
pstr->substream_count = substream_count;
- if (substream_count > 0) {
+ if (substream_count > 0 && !pcm->internal) {
err = snd_pcm_stream_proc_init(pstr);
if (err < 0) {
- snd_printk(KERN_ERR "Error in snd_pcm_stream_proc_init\n");
+ pcm_err(pcm, "Error in snd_pcm_stream_proc_init\n");
return err;
}
}
@@ -638,7 +669,7 @@ int snd_pcm_new_stream(struct snd_pcm *pcm, int stream, int substream_count)
for (idx = 0, prev = NULL; idx < substream_count; idx++) {
substream = kzalloc(sizeof(*substream), GFP_KERNEL);
if (substream == NULL) {
- snd_printk(KERN_ERR "Cannot allocate PCM substream\n");
+ pcm_err(pcm, "Cannot allocate PCM substream\n");
return -ENOMEM;
}
substream->pcm = pcm;
@@ -651,41 +682,35 @@ int snd_pcm_new_stream(struct snd_pcm *pcm, int stream, int substream_count)
pstr->substream = substream;
else
prev->next = substream;
- err = snd_pcm_substream_proc_init(substream);
- if (err < 0) {
- snd_printk(KERN_ERR "Error in snd_pcm_stream_proc_init\n");
- kfree(substream);
- return err;
+
+ if (!pcm->internal) {
+ err = snd_pcm_substream_proc_init(substream);
+ if (err < 0) {
+ pcm_err(pcm,
+ "Error in snd_pcm_stream_proc_init\n");
+ if (prev == NULL)
+ pstr->substream = NULL;
+ else
+ prev->next = NULL;
+ kfree(substream);
+ return err;
+ }
}
substream->group = &substream->self_group;
spin_lock_init(&substream->self_group.lock);
INIT_LIST_HEAD(&substream->self_group.substreams);
list_add_tail(&substream->link_list, &substream->self_group.substreams);
- spin_lock_init(&substream->timer_lock);
+ atomic_set(&substream->mmap_count, 0);
prev = substream;
}
return 0;
}
-/**
- * snd_pcm_new - create a new PCM instance
- * @card: the card instance
- * @id: the id string
- * @device: the device index (zero based)
- * @playback_count: the number of substreams for playback
- * @capture_count: the number of substreams for capture
- * @rpcm: the pointer to store the new pcm instance
- *
- * Creates a new PCM instance.
- *
- * The pcm operators have to be set afterwards to the new instance
- * via snd_pcm_set_ops().
- *
- * Returns zero if successful, or a negative error code on failure.
- */
-int snd_pcm_new(struct snd_card *card, char *id, int device,
- int playback_count, int capture_count,
- struct snd_pcm ** rpcm)
+EXPORT_SYMBOL(snd_pcm_new_stream);
+
+static int _snd_pcm_new(struct snd_card *card, const char *id, int device,
+ int playback_count, int capture_count, bool internal,
+ struct snd_pcm **rpcm)
{
struct snd_pcm *pcm;
int err;
@@ -693,19 +718,20 @@ int snd_pcm_new(struct snd_card *card, char *id, int device,
.dev_free = snd_pcm_dev_free,
.dev_register = snd_pcm_dev_register,
.dev_disconnect = snd_pcm_dev_disconnect,
- .dev_unregister = snd_pcm_dev_unregister
};
- snd_assert(rpcm != NULL, return -EINVAL);
- *rpcm = NULL;
- snd_assert(card != NULL, return -ENXIO);
+ if (snd_BUG_ON(!card))
+ return -ENXIO;
+ if (rpcm)
+ *rpcm = NULL;
pcm = kzalloc(sizeof(*pcm), GFP_KERNEL);
if (pcm == NULL) {
- snd_printk(KERN_ERR "Cannot allocate PCM\n");
+ dev_err(card->dev, "Cannot allocate PCM\n");
return -ENOMEM;
}
pcm->card = card;
pcm->device = device;
+ pcm->internal = internal;
if (id)
strlcpy(pcm->id, id, sizeof(pcm->id));
if ((err = snd_pcm_new_stream(pcm, SNDRV_PCM_STREAM_PLAYBACK, playback_count)) < 0) {
@@ -716,31 +742,86 @@ int snd_pcm_new(struct snd_card *card, char *id, int device,
snd_pcm_free(pcm);
return err;
}
- init_MUTEX(&pcm->open_mutex);
+ mutex_init(&pcm->open_mutex);
init_waitqueue_head(&pcm->open_wait);
if ((err = snd_device_new(card, SNDRV_DEV_PCM, pcm, &ops)) < 0) {
snd_pcm_free(pcm);
return err;
}
- *rpcm = pcm;
+ if (rpcm)
+ *rpcm = pcm;
return 0;
}
+/**
+ * snd_pcm_new - create a new PCM instance
+ * @card: the card instance
+ * @id: the id string
+ * @device: the device index (zero based)
+ * @playback_count: the number of substreams for playback
+ * @capture_count: the number of substreams for capture
+ * @rpcm: the pointer to store the new pcm instance
+ *
+ * Creates a new PCM instance.
+ *
+ * The pcm operators have to be set afterwards to the new instance
+ * via snd_pcm_set_ops().
+ *
+ * Return: Zero if successful, or a negative error code on failure.
+ */
+int snd_pcm_new(struct snd_card *card, const char *id, int device,
+ int playback_count, int capture_count, struct snd_pcm **rpcm)
+{
+ return _snd_pcm_new(card, id, device, playback_count, capture_count,
+ false, rpcm);
+}
+EXPORT_SYMBOL(snd_pcm_new);
+
+/**
+ * snd_pcm_new_internal - create a new internal PCM instance
+ * @card: the card instance
+ * @id: the id string
+ * @device: the device index (zero based - shared with normal PCMs)
+ * @playback_count: the number of substreams for playback
+ * @capture_count: the number of substreams for capture
+ * @rpcm: the pointer to store the new pcm instance
+ *
+ * Creates a new internal PCM instance with no userspace device or procfs
+ * entries. This is used by ASoC Back End PCMs in order to create a PCM that
+ * will only be used internally by kernel drivers. i.e. it cannot be opened
+ * by userspace. It provides existing ASoC components drivers with a substream
+ * and access to any private data.
+ *
+ * The pcm operators have to be set afterwards to the new instance
+ * via snd_pcm_set_ops().
+ *
+ * Return: Zero if successful, or a negative error code on failure.
+ */
+int snd_pcm_new_internal(struct snd_card *card, const char *id, int device,
+ int playback_count, int capture_count,
+ struct snd_pcm **rpcm)
+{
+ return _snd_pcm_new(card, id, device, playback_count, capture_count,
+ true, rpcm);
+}
+EXPORT_SYMBOL(snd_pcm_new_internal);
+
static void snd_pcm_free_stream(struct snd_pcm_str * pstr)
{
struct snd_pcm_substream *substream, *substream_next;
-#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE)
+#if IS_ENABLED(CONFIG_SND_PCM_OSS)
struct snd_pcm_oss_setup *setup, *setupn;
#endif
substream = pstr->substream;
while (substream) {
substream_next = substream->next;
+ snd_pcm_timer_done(substream);
snd_pcm_substream_proc_done(substream);
kfree(substream);
substream = substream_next;
}
snd_pcm_stream_proc_done(pstr);
-#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE)
+#if IS_ENABLED(CONFIG_SND_PCM_OSS)
for (setup = pstr->oss.setup_list; setup; setup = setupn) {
setupn = setup->next;
kfree(setup->task_name);
@@ -751,7 +832,13 @@ static void snd_pcm_free_stream(struct snd_pcm_str * pstr)
static int snd_pcm_free(struct snd_pcm *pcm)
{
- snd_assert(pcm != NULL, return -ENXIO);
+ struct snd_pcm_notify *notify;
+
+ if (!pcm)
+ return 0;
+ list_for_each_entry(notify, &snd_pcm_notify_list, list) {
+ notify->n_unregister(pcm);
+ }
if (pcm->private_free)
pcm->private_free(pcm);
snd_pcm_lib_preallocate_free_for_all(pcm);
@@ -767,44 +854,36 @@ static int snd_pcm_dev_free(struct snd_device *device)
return snd_pcm_free(pcm);
}
-static void snd_pcm_tick_timer_func(unsigned long data)
-{
- struct snd_pcm_substream *substream = (struct snd_pcm_substream *) data;
- snd_pcm_tick_elapsed(substream);
-}
-
-int snd_pcm_open_substream(struct snd_pcm *pcm, int stream,
- struct snd_pcm_substream **rsubstream)
+int snd_pcm_attach_substream(struct snd_pcm *pcm, int stream,
+ struct file *file,
+ struct snd_pcm_substream **rsubstream)
{
struct snd_pcm_str * pstr;
struct snd_pcm_substream *substream;
struct snd_pcm_runtime *runtime;
struct snd_ctl_file *kctl;
struct snd_card *card;
- struct list_head *list;
int prefer_subdevice = -1;
size_t size;
- snd_assert(rsubstream != NULL, return -EINVAL);
+ if (snd_BUG_ON(!pcm || !rsubstream))
+ return -ENXIO;
*rsubstream = NULL;
- snd_assert(pcm != NULL, return -ENXIO);
pstr = &pcm->streams[stream];
- if (pstr->substream == NULL)
+ if (pstr->substream == NULL || pstr->substream_count == 0)
return -ENODEV;
card = pcm->card;
- down_read(&card->controls_rwsem);
- list_for_each(list, &card->ctl_files) {
- kctl = snd_ctl_file(list);
- if (kctl->pid == current->pid) {
+ read_lock(&card->ctl_files_rwlock);
+ list_for_each_entry(kctl, &card->ctl_files, list) {
+ if (kctl->pid == task_pid(current)) {
prefer_subdevice = kctl->prefer_pcm_subdevice;
- break;
+ if (prefer_subdevice != -1)
+ break;
}
}
- up_read(&card->controls_rwsem);
+ read_unlock(&card->ctl_files_rwlock);
- if (pstr->substream_count == 0)
- return -ENODEV;
switch (stream) {
case SNDRV_PCM_STREAM_PLAYBACK:
if (pcm->info_flags & SNDRV_PCM_INFO_HALF_DUPLEX) {
@@ -826,6 +905,26 @@ int snd_pcm_open_substream(struct snd_pcm *pcm, int stream,
return -EINVAL;
}
+ if (file->f_flags & O_APPEND) {
+ if (prefer_subdevice < 0) {
+ if (pstr->substream_count > 1)
+ return -EINVAL; /* must be unique */
+ substream = pstr->substream;
+ } else {
+ for (substream = pstr->substream; substream;
+ substream = substream->next)
+ if (substream->number == prefer_subdevice)
+ break;
+ }
+ if (! substream)
+ return -ENODEV;
+ if (! SUBSTREAM_BUSY(substream))
+ return -EBADFD;
+ substream->ref_count++;
+ *rsubstream = substream;
+ return 0;
+ }
+
if (prefer_subdevice >= 0) {
for (substream = pstr->substream; substream; substream = substream->next)
if (!SUBSTREAM_BUSY(substream) && substream->number == prefer_subdevice)
@@ -861,26 +960,27 @@ int snd_pcm_open_substream(struct snd_pcm *pcm, int stream,
memset((void*)runtime->control, 0, size);
init_waitqueue_head(&runtime->sleep);
- atomic_set(&runtime->mmap_count, 0);
- init_timer(&runtime->tick_timer);
- runtime->tick_timer.function = snd_pcm_tick_timer_func;
- runtime->tick_timer.data = (unsigned long) substream;
+ init_waitqueue_head(&runtime->tsleep);
runtime->status->state = SNDRV_PCM_STATE_OPEN;
substream->runtime = runtime;
substream->private_data = pcm->private_data;
+ substream->ref_count = 1;
+ substream->f_flags = file->f_flags;
+ substream->pid = get_pid(task_pid(current));
pstr->substream_opened++;
*rsubstream = substream;
return 0;
}
-void snd_pcm_release_substream(struct snd_pcm_substream *substream)
+void snd_pcm_detach_substream(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime;
- substream->file = NULL;
+
+ if (PCM_RUNTIME_CHECK(substream))
+ return;
runtime = substream->runtime;
- snd_assert(runtime != NULL, return);
if (runtime->private_free != NULL)
runtime->private_free(runtime);
snd_free_pages((void*)runtime->status,
@@ -888,29 +988,72 @@ void snd_pcm_release_substream(struct snd_pcm_substream *substream)
snd_free_pages((void*)runtime->control,
PAGE_ALIGN(sizeof(struct snd_pcm_mmap_control)));
kfree(runtime->hw_constraints.rules);
+#ifdef CONFIG_SND_PCM_XRUN_DEBUG
+ kfree(runtime->hwptr_log);
+#endif
kfree(runtime);
substream->runtime = NULL;
+ put_pid(substream->pid);
+ substream->pid = NULL;
substream->pstr->substream_opened--;
}
+static ssize_t show_pcm_class(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct snd_pcm *pcm;
+ const char *str;
+ static const char *strs[SNDRV_PCM_CLASS_LAST + 1] = {
+ [SNDRV_PCM_CLASS_GENERIC] = "generic",
+ [SNDRV_PCM_CLASS_MULTI] = "multi",
+ [SNDRV_PCM_CLASS_MODEM] = "modem",
+ [SNDRV_PCM_CLASS_DIGITIZER] = "digitizer",
+ };
+
+ if (! (pcm = dev_get_drvdata(dev)) ||
+ pcm->dev_class > SNDRV_PCM_CLASS_LAST)
+ str = "none";
+ else
+ str = strs[pcm->dev_class];
+ return snprintf(buf, PAGE_SIZE, "%s\n", str);
+}
+
+static DEVICE_ATTR(pcm_class, S_IRUGO, show_pcm_class, NULL);
+static struct attribute *pcm_dev_attrs[] = {
+ &dev_attr_pcm_class.attr,
+ NULL
+};
+
+static struct attribute_group pcm_dev_attr_group = {
+ .attrs = pcm_dev_attrs,
+};
+
+static const struct attribute_group *pcm_dev_attr_groups[] = {
+ &pcm_dev_attr_group,
+ NULL
+};
+
static int snd_pcm_dev_register(struct snd_device *device)
{
int cidx, err;
struct snd_pcm_substream *substream;
- struct list_head *list;
+ struct snd_pcm_notify *notify;
char str[16];
- struct snd_pcm *pcm = device->device_data;
-
- snd_assert(pcm != NULL && device != NULL, return -ENXIO);
- down(&register_mutex);
- if (snd_pcm_search(pcm->card, pcm->device)) {
- up(&register_mutex);
- return -EBUSY;
+ struct snd_pcm *pcm;
+ struct device *dev;
+
+ if (snd_BUG_ON(!device || !device->device_data))
+ return -ENXIO;
+ pcm = device->device_data;
+ mutex_lock(&register_mutex);
+ err = snd_pcm_add(pcm);
+ if (err) {
+ mutex_unlock(&register_mutex);
+ return err;
}
- list_add_tail(&pcm->list, &snd_pcm_devices);
for (cidx = 0; cidx < 2; cidx++) {
int devtype = -1;
- if (pcm->streams[cidx].substream == NULL)
+ if (pcm->streams[cidx].substream == NULL || pcm->internal)
continue;
switch (cidx) {
case SNDRV_PCM_STREAM_PLAYBACK:
@@ -922,59 +1065,72 @@ static int snd_pcm_dev_register(struct snd_device *device)
devtype = SNDRV_DEVICE_TYPE_PCM_CAPTURE;
break;
}
- if ((err = snd_register_device(devtype, pcm->card,
- pcm->device,
- &snd_pcm_f_ops[cidx],
- pcm, str)) < 0)
- {
+ /* device pointer to use, pcm->dev takes precedence if
+ * it is assigned, otherwise fall back to card's device
+ * if possible */
+ dev = pcm->dev;
+ if (!dev)
+ dev = snd_card_get_device_link(pcm->card);
+ /* register pcm */
+ err = snd_register_device_for_dev(devtype, pcm->card,
+ pcm->device,
+ &snd_pcm_f_ops[cidx],
+ pcm, str, dev);
+ if (err < 0) {
list_del(&pcm->list);
- up(&register_mutex);
+ mutex_unlock(&register_mutex);
return err;
}
+
+ dev = snd_get_device(devtype, pcm->card, pcm->device);
+ if (dev) {
+ err = sysfs_create_groups(&dev->kobj,
+ pcm_dev_attr_groups);
+ if (err < 0)
+ dev_warn(dev,
+ "pcm %d:%d: cannot create sysfs groups\n",
+ pcm->card->number, pcm->device);
+ put_device(dev);
+ }
+
for (substream = pcm->streams[cidx].substream; substream; substream = substream->next)
snd_pcm_timer_init(substream);
}
- list_for_each(list, &snd_pcm_notify_list) {
- struct snd_pcm_notify *notify;
- notify = list_entry(list, struct snd_pcm_notify, list);
+
+ list_for_each_entry(notify, &snd_pcm_notify_list, list)
notify->n_register(pcm);
- }
- up(&register_mutex);
+
+ mutex_unlock(&register_mutex);
return 0;
}
static int snd_pcm_dev_disconnect(struct snd_device *device)
{
struct snd_pcm *pcm = device->device_data;
- struct list_head *list;
+ struct snd_pcm_notify *notify;
struct snd_pcm_substream *substream;
- int cidx;
+ int cidx, devtype;
+
+ mutex_lock(&register_mutex);
+ if (list_empty(&pcm->list))
+ goto unlock;
- down(&register_mutex);
+ mutex_lock(&pcm->open_mutex);
+ wake_up(&pcm->open_wait);
list_del_init(&pcm->list);
for (cidx = 0; cidx < 2; cidx++)
- for (substream = pcm->streams[cidx].substream; substream; substream = substream->next)
- if (substream->runtime)
+ for (substream = pcm->streams[cidx].substream; substream; substream = substream->next) {
+ snd_pcm_stream_lock_irq(substream);
+ if (substream->runtime) {
substream->runtime->status->state = SNDRV_PCM_STATE_DISCONNECTED;
- list_for_each(list, &snd_pcm_notify_list) {
- struct snd_pcm_notify *notify;
- notify = list_entry(list, struct snd_pcm_notify, list);
+ wake_up(&substream->runtime->sleep);
+ wake_up(&substream->runtime->tsleep);
+ }
+ snd_pcm_stream_unlock_irq(substream);
+ }
+ list_for_each_entry(notify, &snd_pcm_notify_list, list) {
notify->n_disconnect(pcm);
}
- up(&register_mutex);
- return 0;
-}
-
-static int snd_pcm_dev_unregister(struct snd_device *device)
-{
- int cidx, devtype;
- struct snd_pcm_substream *substream;
- struct list_head *list;
- struct snd_pcm *pcm = device->device_data;
-
- snd_assert(pcm != NULL, return -ENXIO);
- down(&register_mutex);
- list_del(&pcm->list);
for (cidx = 0; cidx < 2; cidx++) {
devtype = -1;
switch (cidx) {
@@ -986,38 +1142,42 @@ static int snd_pcm_dev_unregister(struct snd_device *device)
break;
}
snd_unregister_device(devtype, pcm->card, pcm->device);
- for (substream = pcm->streams[cidx].substream; substream; substream = substream->next)
- snd_pcm_timer_done(substream);
- }
- list_for_each(list, &snd_pcm_notify_list) {
- struct snd_pcm_notify *notify;
- notify = list_entry(list, struct snd_pcm_notify, list);
- notify->n_unregister(pcm);
+ if (pcm->streams[cidx].chmap_kctl) {
+ snd_ctl_remove(pcm->card, pcm->streams[cidx].chmap_kctl);
+ pcm->streams[cidx].chmap_kctl = NULL;
+ }
}
- up(&register_mutex);
- return snd_pcm_free(pcm);
+ mutex_unlock(&pcm->open_mutex);
+ unlock:
+ mutex_unlock(&register_mutex);
+ return 0;
}
int snd_pcm_notify(struct snd_pcm_notify *notify, int nfree)
{
- struct list_head *p;
+ struct snd_pcm *pcm;
- snd_assert(notify != NULL && notify->n_register != NULL && notify->n_unregister != NULL, return -EINVAL);
- down(&register_mutex);
+ if (snd_BUG_ON(!notify ||
+ !notify->n_register ||
+ !notify->n_unregister ||
+ !notify->n_disconnect))
+ return -EINVAL;
+ mutex_lock(&register_mutex);
if (nfree) {
list_del(&notify->list);
- list_for_each(p, &snd_pcm_devices)
- notify->n_unregister(list_entry(p,
- struct snd_pcm, list));
+ list_for_each_entry(pcm, &snd_pcm_devices, list)
+ notify->n_unregister(pcm);
} else {
list_add_tail(&notify->list, &snd_pcm_notify_list);
- list_for_each(p, &snd_pcm_devices)
- notify->n_register(list_entry(p, struct snd_pcm, list));
+ list_for_each_entry(pcm, &snd_pcm_devices, list)
+ notify->n_register(pcm);
}
- up(&register_mutex);
+ mutex_unlock(&register_mutex);
return 0;
}
+EXPORT_SYMBOL(snd_pcm_notify);
+
#ifdef CONFIG_PROC_FS
/*
* Info interface
@@ -1026,12 +1186,10 @@ int snd_pcm_notify(struct snd_pcm_notify *notify, int nfree)
static void snd_pcm_proc_read(struct snd_info_entry *entry,
struct snd_info_buffer *buffer)
{
- struct list_head *p;
struct snd_pcm *pcm;
- down(&register_mutex);
- list_for_each(p, &snd_pcm_devices) {
- pcm = list_entry(p, struct snd_pcm, list);
+ mutex_lock(&register_mutex);
+ list_for_each_entry(pcm, &snd_pcm_devices, list) {
snd_iprintf(buffer, "%02i-%02i: %s : %s",
pcm->card->number, pcm->device, pcm->id, pcm->name);
if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream)
@@ -1042,18 +1200,17 @@ static void snd_pcm_proc_read(struct snd_info_entry *entry,
pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream_count);
snd_iprintf(buffer, "\n");
}
- up(&register_mutex);
+ mutex_unlock(&register_mutex);
}
-static struct snd_info_entry *snd_pcm_proc_entry = NULL;
+static struct snd_info_entry *snd_pcm_proc_entry;
static void snd_pcm_proc_init(void)
{
struct snd_info_entry *entry;
if ((entry = snd_info_create_module_entry(THIS_MODULE, "pcm", NULL)) != NULL) {
- snd_info_set_text_ops(entry, NULL, SNDRV_CARDS * SNDRV_PCM_DEVICES * 128,
- snd_pcm_proc_read);
+ snd_info_set_text_ops(entry, NULL, snd_pcm_proc_read);
if (snd_info_register(entry) < 0) {
snd_info_free_entry(entry);
entry = NULL;
@@ -1064,8 +1221,7 @@ static void snd_pcm_proc_init(void)
static void snd_pcm_proc_done(void)
{
- if (snd_pcm_proc_entry)
- snd_info_unregister(snd_pcm_proc_entry);
+ snd_info_free_entry(snd_pcm_proc_entry);
}
#else /* !CONFIG_PROC_FS */
@@ -1095,36 +1251,3 @@ static void __exit alsa_pcm_exit(void)
module_init(alsa_pcm_init)
module_exit(alsa_pcm_exit)
-
-EXPORT_SYMBOL(snd_pcm_new);
-EXPORT_SYMBOL(snd_pcm_new_stream);
-EXPORT_SYMBOL(snd_pcm_notify);
-EXPORT_SYMBOL(snd_pcm_open_substream);
-EXPORT_SYMBOL(snd_pcm_release_substream);
-EXPORT_SYMBOL(snd_pcm_format_name);
- /* pcm_native.c */
-EXPORT_SYMBOL(snd_pcm_link_rwlock);
-#ifdef CONFIG_PM
-EXPORT_SYMBOL(snd_pcm_suspend);
-EXPORT_SYMBOL(snd_pcm_suspend_all);
-#endif
-EXPORT_SYMBOL(snd_pcm_kernel_playback_ioctl);
-EXPORT_SYMBOL(snd_pcm_kernel_capture_ioctl);
-EXPORT_SYMBOL(snd_pcm_kernel_ioctl);
-EXPORT_SYMBOL(snd_pcm_mmap_data);
-#if SNDRV_PCM_INFO_MMAP_IOMEM
-EXPORT_SYMBOL(snd_pcm_lib_mmap_iomem);
-#endif
- /* pcm_misc.c */
-EXPORT_SYMBOL(snd_pcm_format_signed);
-EXPORT_SYMBOL(snd_pcm_format_unsigned);
-EXPORT_SYMBOL(snd_pcm_format_linear);
-EXPORT_SYMBOL(snd_pcm_format_little_endian);
-EXPORT_SYMBOL(snd_pcm_format_big_endian);
-EXPORT_SYMBOL(snd_pcm_format_width);
-EXPORT_SYMBOL(snd_pcm_format_physical_width);
-EXPORT_SYMBOL(snd_pcm_format_size);
-EXPORT_SYMBOL(snd_pcm_format_silence_64);
-EXPORT_SYMBOL(snd_pcm_format_set_silence);
-EXPORT_SYMBOL(snd_pcm_build_linear_format);
-EXPORT_SYMBOL(snd_pcm_limit_hw_rates);
diff --git a/sound/core/pcm_compat.c b/sound/core/pcm_compat.c
index e5133033de5..af49721ba0e 100644
--- a/sound/core/pcm_compat.c
+++ b/sound/core/pcm_compat.c
@@ -21,6 +21,7 @@
/* This file included from pcm_native.c */
#include <linux/compat.h>
+#include <linux/slab.h>
static int snd_pcm_ioctl_delay_compat(struct snd_pcm_substream *substream,
s32 __user *src)
@@ -189,7 +190,9 @@ struct snd_pcm_status32 {
u32 avail_max;
u32 overrange;
s32 suspended_state;
- unsigned char reserved[60];
+ u32 reserved_alignment;
+ struct compat_timespec audio_tstamp;
+ unsigned char reserved[56-sizeof(struct compat_timespec)];
} __attribute__((packed));
@@ -204,17 +207,16 @@ static int snd_pcm_status_user_compat(struct snd_pcm_substream *substream,
return err;
if (put_user(status.state, &src->state) ||
- put_user(status.trigger_tstamp.tv_sec, &src->trigger_tstamp.tv_sec) ||
- put_user(status.trigger_tstamp.tv_nsec, &src->trigger_tstamp.tv_nsec) ||
- put_user(status.tstamp.tv_sec, &src->tstamp.tv_sec) ||
- put_user(status.tstamp.tv_nsec, &src->tstamp.tv_nsec) ||
+ compat_put_timespec(&status.trigger_tstamp, &src->trigger_tstamp) ||
+ compat_put_timespec(&status.tstamp, &src->tstamp) ||
put_user(status.appl_ptr, &src->appl_ptr) ||
put_user(status.hw_ptr, &src->hw_ptr) ||
put_user(status.delay, &src->delay) ||
put_user(status.avail, &src->avail) ||
put_user(status.avail_max, &src->avail_max) ||
put_user(status.overrange, &src->overrange) ||
- put_user(status.suspended_state, &src->suspended_state))
+ put_user(status.suspended_state, &src->suspended_state) ||
+ compat_put_timespec(&status.audio_tstamp, &src->audio_tstamp))
return -EFAULT;
return err;
@@ -232,14 +234,11 @@ static int snd_pcm_ioctl_hw_params_compat(struct snd_pcm_substream *substream,
if (! (runtime = substream->runtime))
return -ENOTTY;
- data = kmalloc(sizeof(*data), GFP_KERNEL);
- if (data == NULL)
- return -ENOMEM;
/* only fifo_size is different, so just copy all */
- if (copy_from_user(data, data32, sizeof(*data32))) {
- err = -EFAULT;
- goto error;
- }
+ data = memdup_user(data32, sizeof(*data32));
+ if (IS_ERR(data))
+ return PTR_ERR(data);
+
if (refine)
err = snd_pcm_hw_refine(substream, data);
else
@@ -344,7 +343,7 @@ static int snd_pcm_ioctl_xfern_compat(struct snd_pcm_substream *substream,
kfree(bufs);
return -EFAULT;
}
- bufs[ch] = compat_ptr(ptr);
+ bufs[i] = compat_ptr(ptr);
bufptr++;
}
if (dir == SNDRV_PCM_STREAM_PLAYBACK)
@@ -366,6 +365,7 @@ struct snd_pcm_mmap_status32 {
u32 hw_ptr;
struct compat_timespec tstamp;
s32 suspended_state;
+ struct compat_timespec audio_tstamp;
} __attribute__((packed));
struct snd_pcm_mmap_control32 {
@@ -397,7 +397,8 @@ static int snd_pcm_ioctl_sync_ptr_compat(struct snd_pcm_substream *substream,
snd_pcm_uframes_t boundary;
int err;
- snd_assert(runtime, return -EINVAL);
+ if (snd_BUG_ON(!runtime))
+ return -EINVAL;
if (get_user(sflags, &src->flags) ||
get_user(scontrol.appl_ptr, &src->c.control.appl_ptr) ||
@@ -427,12 +428,14 @@ static int snd_pcm_ioctl_sync_ptr_compat(struct snd_pcm_substream *substream,
sstatus.hw_ptr = status->hw_ptr % boundary;
sstatus.tstamp = status->tstamp;
sstatus.suspended_state = status->suspended_state;
+ sstatus.audio_tstamp = status->audio_tstamp;
snd_pcm_stream_unlock_irq(substream);
if (put_user(sstatus.state, &src->s.status.state) ||
put_user(sstatus.hw_ptr, &src->s.status.hw_ptr) ||
- put_user(sstatus.tstamp.tv_sec, &src->s.status.tstamp.tv_sec) ||
- put_user(sstatus.tstamp.tv_nsec, &src->s.status.tstamp.tv_nsec) ||
+ compat_put_timespec(&sstatus.tstamp, &src->s.status.tstamp) ||
put_user(sstatus.suspended_state, &src->s.status.suspended_state) ||
+ compat_put_timespec(&sstatus.audio_tstamp,
+ &src->s.status.audio_tstamp) ||
put_user(scontrol.appl_ptr, &src->c.control.appl_ptr) ||
put_user(scontrol.avail_min, &src->c.control.avail_min))
return -EFAULT;
@@ -478,12 +481,13 @@ static long snd_pcm_ioctl_compat(struct file *file, unsigned int cmd, unsigned l
* mmap of PCM status/control records because of the size
* incompatibility.
*/
- substream->no_mmap_ctrl = 1;
+ pcm_file->no_compat_mmap = 1;
switch (cmd) {
case SNDRV_PCM_IOCTL_PVERSION:
case SNDRV_PCM_IOCTL_INFO:
case SNDRV_PCM_IOCTL_TSTAMP:
+ case SNDRV_PCM_IOCTL_TTSTAMP:
case SNDRV_PCM_IOCTL_HWSYNC:
case SNDRV_PCM_IOCTL_PREPARE:
case SNDRV_PCM_IOCTL_RESET:
@@ -497,9 +501,9 @@ static long snd_pcm_ioctl_compat(struct file *file, unsigned int cmd, unsigned l
case SNDRV_PCM_IOCTL_LINK:
case SNDRV_PCM_IOCTL_UNLINK:
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- return snd_pcm_playback_ioctl1(substream, cmd, argp);
+ return snd_pcm_playback_ioctl1(file, substream, cmd, argp);
else
- return snd_pcm_capture_ioctl1(substream, cmd, argp);
+ return snd_pcm_capture_ioctl1(file, substream, cmd, argp);
case SNDRV_PCM_IOCTL_HW_REFINE32:
return snd_pcm_ioctl_hw_params_compat(substream, 1, argp);
case SNDRV_PCM_IOCTL_HW_PARAMS32:
diff --git a/sound/core/pcm_dmaengine.c b/sound/core/pcm_dmaengine.c
new file mode 100644
index 00000000000..76cbb9ec953
--- /dev/null
+++ b/sound/core/pcm_dmaengine.c
@@ -0,0 +1,369 @@
+/*
+ * Copyright (C) 2012, Analog Devices Inc.
+ * Author: Lars-Peter Clausen <lars@metafoo.de>
+ *
+ * Based on:
+ * imx-pcm-dma-mx2.c, Copyright 2009 Sascha Hauer <s.hauer@pengutronix.de>
+ * mxs-pcm.c, Copyright (C) 2011 Freescale Semiconductor, Inc.
+ * ep93xx-pcm.c, Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
+ * Copyright (C) 2006 Applied Data Systems
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/dmaengine.h>
+#include <linux/slab.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#include <sound/dmaengine_pcm.h>
+
+struct dmaengine_pcm_runtime_data {
+ struct dma_chan *dma_chan;
+ dma_cookie_t cookie;
+
+ unsigned int pos;
+};
+
+static inline struct dmaengine_pcm_runtime_data *substream_to_prtd(
+ const struct snd_pcm_substream *substream)
+{
+ return substream->runtime->private_data;
+}
+
+struct dma_chan *snd_dmaengine_pcm_get_chan(struct snd_pcm_substream *substream)
+{
+ struct dmaengine_pcm_runtime_data *prtd = substream_to_prtd(substream);
+
+ return prtd->dma_chan;
+}
+EXPORT_SYMBOL_GPL(snd_dmaengine_pcm_get_chan);
+
+/**
+ * snd_hwparams_to_dma_slave_config - Convert hw_params to dma_slave_config
+ * @substream: PCM substream
+ * @params: hw_params
+ * @slave_config: DMA slave config
+ *
+ * This function can be used to initialize a dma_slave_config from a substream
+ * and hw_params in a dmaengine based PCM driver implementation.
+ */
+int snd_hwparams_to_dma_slave_config(const struct snd_pcm_substream *substream,
+ const struct snd_pcm_hw_params *params,
+ struct dma_slave_config *slave_config)
+{
+ enum dma_slave_buswidth buswidth;
+ int bits;
+
+ bits = snd_pcm_format_physical_width(params_format(params));
+ if (bits < 8 || bits > 64)
+ return -EINVAL;
+ else if (bits == 8)
+ buswidth = DMA_SLAVE_BUSWIDTH_1_BYTE;
+ else if (bits == 16)
+ buswidth = DMA_SLAVE_BUSWIDTH_2_BYTES;
+ else if (bits <= 32)
+ buswidth = DMA_SLAVE_BUSWIDTH_4_BYTES;
+ else
+ buswidth = DMA_SLAVE_BUSWIDTH_8_BYTES;
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ slave_config->direction = DMA_MEM_TO_DEV;
+ slave_config->dst_addr_width = buswidth;
+ } else {
+ slave_config->direction = DMA_DEV_TO_MEM;
+ slave_config->src_addr_width = buswidth;
+ }
+
+ slave_config->device_fc = false;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(snd_hwparams_to_dma_slave_config);
+
+/**
+ * snd_dmaengine_pcm_set_config_from_dai_data() - Initializes a dma slave config
+ * using DAI DMA data.
+ * @substream: PCM substream
+ * @dma_data: DAI DMA data
+ * @slave_config: DMA slave configuration
+ *
+ * Initializes the {dst,src}_addr, {dst,src}_maxburst, {dst,src}_addr_width and
+ * slave_id fields of the DMA slave config from the same fields of the DAI DMA
+ * data struct. The src and dst fields will be initialized depending on the
+ * direction of the substream. If the substream is a playback stream the dst
+ * fields will be initialized, if it is a capture stream the src fields will be
+ * initialized. The {dst,src}_addr_width field will only be initialized if the
+ * addr_width field of the DAI DMA data struct is not equal to
+ * DMA_SLAVE_BUSWIDTH_UNDEFINED.
+ */
+void snd_dmaengine_pcm_set_config_from_dai_data(
+ const struct snd_pcm_substream *substream,
+ const struct snd_dmaengine_dai_dma_data *dma_data,
+ struct dma_slave_config *slave_config)
+{
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ slave_config->dst_addr = dma_data->addr;
+ slave_config->dst_maxburst = dma_data->maxburst;
+ if (dma_data->addr_width != DMA_SLAVE_BUSWIDTH_UNDEFINED)
+ slave_config->dst_addr_width = dma_data->addr_width;
+ } else {
+ slave_config->src_addr = dma_data->addr;
+ slave_config->src_maxburst = dma_data->maxburst;
+ if (dma_data->addr_width != DMA_SLAVE_BUSWIDTH_UNDEFINED)
+ slave_config->src_addr_width = dma_data->addr_width;
+ }
+
+ slave_config->slave_id = dma_data->slave_id;
+}
+EXPORT_SYMBOL_GPL(snd_dmaengine_pcm_set_config_from_dai_data);
+
+static void dmaengine_pcm_dma_complete(void *arg)
+{
+ struct snd_pcm_substream *substream = arg;
+ struct dmaengine_pcm_runtime_data *prtd = substream_to_prtd(substream);
+
+ prtd->pos += snd_pcm_lib_period_bytes(substream);
+ if (prtd->pos >= snd_pcm_lib_buffer_bytes(substream))
+ prtd->pos = 0;
+
+ snd_pcm_period_elapsed(substream);
+}
+
+static int dmaengine_pcm_prepare_and_submit(struct snd_pcm_substream *substream)
+{
+ struct dmaengine_pcm_runtime_data *prtd = substream_to_prtd(substream);
+ struct dma_chan *chan = prtd->dma_chan;
+ struct dma_async_tx_descriptor *desc;
+ enum dma_transfer_direction direction;
+ unsigned long flags = DMA_CTRL_ACK;
+
+ direction = snd_pcm_substream_to_dma_direction(substream);
+
+ if (!substream->runtime->no_period_wakeup)
+ flags |= DMA_PREP_INTERRUPT;
+
+ prtd->pos = 0;
+ desc = dmaengine_prep_dma_cyclic(chan,
+ substream->runtime->dma_addr,
+ snd_pcm_lib_buffer_bytes(substream),
+ snd_pcm_lib_period_bytes(substream), direction, flags);
+
+ if (!desc)
+ return -ENOMEM;
+
+ desc->callback = dmaengine_pcm_dma_complete;
+ desc->callback_param = substream;
+ prtd->cookie = dmaengine_submit(desc);
+
+ return 0;
+}
+
+/**
+ * snd_dmaengine_pcm_trigger - dmaengine based PCM trigger implementation
+ * @substream: PCM substream
+ * @cmd: Trigger command
+ *
+ * Returns 0 on success, a negative error code otherwise.
+ *
+ * This function can be used as the PCM trigger callback for dmaengine based PCM
+ * driver implementations.
+ */
+int snd_dmaengine_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
+{
+ struct dmaengine_pcm_runtime_data *prtd = substream_to_prtd(substream);
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ int ret;
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ ret = dmaengine_pcm_prepare_and_submit(substream);
+ if (ret)
+ return ret;
+ dma_async_issue_pending(prtd->dma_chan);
+ break;
+ case SNDRV_PCM_TRIGGER_RESUME:
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ dmaengine_resume(prtd->dma_chan);
+ break;
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ if (runtime->info & SNDRV_PCM_INFO_PAUSE)
+ dmaengine_pause(prtd->dma_chan);
+ else
+ dmaengine_terminate_all(prtd->dma_chan);
+ break;
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ dmaengine_pause(prtd->dma_chan);
+ break;
+ case SNDRV_PCM_TRIGGER_STOP:
+ dmaengine_terminate_all(prtd->dma_chan);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(snd_dmaengine_pcm_trigger);
+
+/**
+ * snd_dmaengine_pcm_pointer_no_residue - dmaengine based PCM pointer implementation
+ * @substream: PCM substream
+ *
+ * This function is deprecated and should not be used by new drivers, as its
+ * results may be unreliable.
+ */
+snd_pcm_uframes_t snd_dmaengine_pcm_pointer_no_residue(struct snd_pcm_substream *substream)
+{
+ struct dmaengine_pcm_runtime_data *prtd = substream_to_prtd(substream);
+ return bytes_to_frames(substream->runtime, prtd->pos);
+}
+EXPORT_SYMBOL_GPL(snd_dmaengine_pcm_pointer_no_residue);
+
+/**
+ * snd_dmaengine_pcm_pointer - dmaengine based PCM pointer implementation
+ * @substream: PCM substream
+ *
+ * This function can be used as the PCM pointer callback for dmaengine based PCM
+ * driver implementations.
+ */
+snd_pcm_uframes_t snd_dmaengine_pcm_pointer(struct snd_pcm_substream *substream)
+{
+ struct dmaengine_pcm_runtime_data *prtd = substream_to_prtd(substream);
+ struct dma_tx_state state;
+ enum dma_status status;
+ unsigned int buf_size;
+ unsigned int pos = 0;
+
+ status = dmaengine_tx_status(prtd->dma_chan, prtd->cookie, &state);
+ if (status == DMA_IN_PROGRESS || status == DMA_PAUSED) {
+ buf_size = snd_pcm_lib_buffer_bytes(substream);
+ if (state.residue > 0 && state.residue <= buf_size)
+ pos = buf_size - state.residue;
+ }
+
+ return bytes_to_frames(substream->runtime, pos);
+}
+EXPORT_SYMBOL_GPL(snd_dmaengine_pcm_pointer);
+
+/**
+ * snd_dmaengine_pcm_request_channel - Request channel for the dmaengine PCM
+ * @filter_fn: Filter function used to request the DMA channel
+ * @filter_data: Data passed to the DMA filter function
+ *
+ * Returns NULL or the requested DMA channel.
+ *
+ * This function request a DMA channel for usage with dmaengine PCM.
+ */
+struct dma_chan *snd_dmaengine_pcm_request_channel(dma_filter_fn filter_fn,
+ void *filter_data)
+{
+ dma_cap_mask_t mask;
+
+ dma_cap_zero(mask);
+ dma_cap_set(DMA_SLAVE, mask);
+ dma_cap_set(DMA_CYCLIC, mask);
+
+ return dma_request_channel(mask, filter_fn, filter_data);
+}
+EXPORT_SYMBOL_GPL(snd_dmaengine_pcm_request_channel);
+
+/**
+ * snd_dmaengine_pcm_open - Open a dmaengine based PCM substream
+ * @substream: PCM substream
+ * @chan: DMA channel to use for data transfers
+ *
+ * Returns 0 on success, a negative error code otherwise.
+ *
+ * The function should usually be called from the pcm open callback. Note that
+ * this function will use private_data field of the substream's runtime. So it
+ * is not availabe to your pcm driver implementation.
+ */
+int snd_dmaengine_pcm_open(struct snd_pcm_substream *substream,
+ struct dma_chan *chan)
+{
+ struct dmaengine_pcm_runtime_data *prtd;
+ int ret;
+
+ if (!chan)
+ return -ENXIO;
+
+ ret = snd_pcm_hw_constraint_integer(substream->runtime,
+ SNDRV_PCM_HW_PARAM_PERIODS);
+ if (ret < 0)
+ return ret;
+
+ prtd = kzalloc(sizeof(*prtd), GFP_KERNEL);
+ if (!prtd)
+ return -ENOMEM;
+
+ prtd->dma_chan = chan;
+
+ substream->runtime->private_data = prtd;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(snd_dmaengine_pcm_open);
+
+/**
+ * snd_dmaengine_pcm_open_request_chan - Open a dmaengine based PCM substream and request channel
+ * @substream: PCM substream
+ * @filter_fn: Filter function used to request the DMA channel
+ * @filter_data: Data passed to the DMA filter function
+ *
+ * Returns 0 on success, a negative error code otherwise.
+ *
+ * This function will request a DMA channel using the passed filter function and
+ * data. The function should usually be called from the pcm open callback. Note
+ * that this function will use private_data field of the substream's runtime. So
+ * it is not availabe to your pcm driver implementation.
+ */
+int snd_dmaengine_pcm_open_request_chan(struct snd_pcm_substream *substream,
+ dma_filter_fn filter_fn, void *filter_data)
+{
+ return snd_dmaengine_pcm_open(substream,
+ snd_dmaengine_pcm_request_channel(filter_fn, filter_data));
+}
+EXPORT_SYMBOL_GPL(snd_dmaengine_pcm_open_request_chan);
+
+/**
+ * snd_dmaengine_pcm_close - Close a dmaengine based PCM substream
+ * @substream: PCM substream
+ */
+int snd_dmaengine_pcm_close(struct snd_pcm_substream *substream)
+{
+ struct dmaengine_pcm_runtime_data *prtd = substream_to_prtd(substream);
+
+ kfree(prtd);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(snd_dmaengine_pcm_close);
+
+/**
+ * snd_dmaengine_pcm_release_chan_close - Close a dmaengine based PCM substream and release channel
+ * @substream: PCM substream
+ *
+ * Releases the DMA channel associated with the PCM substream.
+ */
+int snd_dmaengine_pcm_close_release_chan(struct snd_pcm_substream *substream)
+{
+ struct dmaengine_pcm_runtime_data *prtd = substream_to_prtd(substream);
+
+ dma_release_channel(prtd->dma_chan);
+
+ return snd_dmaengine_pcm_close(substream);
+}
+EXPORT_SYMBOL_GPL(snd_dmaengine_pcm_close_release_chan);
+
+MODULE_LICENSE("GPL");
diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c
index eeba2f06095..9acc77eae48 100644
--- a/sound/core/pcm_lib.c
+++ b/sound/core/pcm_lib.c
@@ -1,6 +1,6 @@
/*
* Digital Audio (PCM) abstract layer
- * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
* Abramo Bagnara <abramo@alsa-project.org>
*
*
@@ -20,11 +20,13 @@
*
*/
-#include <sound/driver.h>
#include <linux/slab.h>
#include <linux/time.h>
+#include <linux/math64.h>
+#include <linux/export.h>
#include <sound/core.h>
#include <sound/control.h>
+#include <sound/tlv.h>
#include <sound/info.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
@@ -67,6 +69,8 @@ void snd_pcm_playback_silence(struct snd_pcm_substream *substream, snd_pcm_ufram
} else {
if (new_hw_ptr == ULONG_MAX) { /* initialization */
snd_pcm_sframes_t avail = snd_pcm_playback_hw_avail(runtime);
+ if (avail > runtime->buffer_size)
+ avail = runtime->buffer_size;
runtime->silence_filled = avail > 0 ? avail : 0;
runtime->silence_start = (runtime->status->hw_ptr +
runtime->silence_filled) %
@@ -79,19 +83,18 @@ void snd_pcm_playback_silence(struct snd_pcm_substream *substream, snd_pcm_ufram
runtime->silence_filled -= frames;
if ((snd_pcm_sframes_t)runtime->silence_filled < 0) {
runtime->silence_filled = 0;
- runtime->silence_start = (ofs + frames) - runtime->buffer_size;
+ runtime->silence_start = new_hw_ptr;
} else {
- runtime->silence_start = ofs - runtime->silence_filled;
+ runtime->silence_start = ofs;
}
- if ((snd_pcm_sframes_t)runtime->silence_start < 0)
- runtime->silence_start += runtime->boundary;
}
frames = runtime->buffer_size - runtime->silence_filled;
}
- snd_assert(frames <= runtime->buffer_size, return);
+ if (snd_BUG_ON(frames > runtime->buffer_size))
+ return;
if (frames == 0)
return;
- ofs = (runtime->silence_start + runtime->silence_filled) % runtime->buffer_size;
+ ofs = runtime->silence_start % runtime->buffer_size;
while (frames > 0) {
transfer = ofs + frames > runtime->buffer_size ? runtime->buffer_size - ofs : frames;
if (runtime->access == SNDRV_PCM_ACCESS_RW_INTERLEAVED ||
@@ -99,7 +102,7 @@ void snd_pcm_playback_silence(struct snd_pcm_substream *substream, snd_pcm_ufram
if (substream->ops->silence) {
int err;
err = substream->ops->silence(substream, -1, ofs, transfer);
- snd_assert(err >= 0, );
+ snd_BUG_ON(err < 0);
} else {
char *hwbuf = runtime->dma_area + frames_to_bytes(runtime, ofs);
snd_pcm_format_set_silence(runtime->format, hwbuf, transfer * runtime->channels);
@@ -111,7 +114,7 @@ void snd_pcm_playback_silence(struct snd_pcm_substream *substream, snd_pcm_ufram
for (c = 0; c < channels; ++c) {
int err;
err = substream->ops->silence(substream, c, ofs, transfer);
- snd_assert(err >= 0, );
+ snd_BUG_ON(err < 0);
}
} else {
size_t dma_csize = runtime->dma_bytes / channels;
@@ -127,42 +130,152 @@ void snd_pcm_playback_silence(struct snd_pcm_substream *substream, snd_pcm_ufram
}
}
+#ifdef CONFIG_SND_DEBUG
+void snd_pcm_debug_name(struct snd_pcm_substream *substream,
+ char *name, size_t len)
+{
+ snprintf(name, len, "pcmC%dD%d%c:%d",
+ substream->pcm->card->number,
+ substream->pcm->device,
+ substream->stream ? 'c' : 'p',
+ substream->number);
+}
+EXPORT_SYMBOL(snd_pcm_debug_name);
+#endif
+
+#define XRUN_DEBUG_BASIC (1<<0)
+#define XRUN_DEBUG_STACK (1<<1) /* dump also stack */
+#define XRUN_DEBUG_JIFFIESCHECK (1<<2) /* do jiffies check */
+#define XRUN_DEBUG_PERIODUPDATE (1<<3) /* full period update info */
+#define XRUN_DEBUG_HWPTRUPDATE (1<<4) /* full hwptr update info */
+#define XRUN_DEBUG_LOG (1<<5) /* show last 10 positions on err */
+#define XRUN_DEBUG_LOGONCE (1<<6) /* do above only once */
+
+#ifdef CONFIG_SND_PCM_XRUN_DEBUG
+
+#define xrun_debug(substream, mask) \
+ ((substream)->pstr->xrun_debug & (mask))
+#else
+#define xrun_debug(substream, mask) 0
+#endif
+
+#define dump_stack_on_xrun(substream) do { \
+ if (xrun_debug(substream, XRUN_DEBUG_STACK)) \
+ dump_stack(); \
+ } while (0)
+
static void xrun(struct snd_pcm_substream *substream)
{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+
+ if (runtime->tstamp_mode == SNDRV_PCM_TSTAMP_ENABLE)
+ snd_pcm_gettime(runtime, (struct timespec *)&runtime->status->tstamp);
snd_pcm_stop(substream, SNDRV_PCM_STATE_XRUN);
-#ifdef CONFIG_SND_DEBUG
- if (substream->pstr->xrun_debug) {
- snd_printd(KERN_DEBUG "XRUN: pcmC%dD%d%c\n",
- substream->pcm->card->number,
- substream->pcm->device,
- substream->stream ? 'c' : 'p');
- if (substream->pstr->xrun_debug > 1)
- dump_stack();
+ if (xrun_debug(substream, XRUN_DEBUG_BASIC)) {
+ char name[16];
+ snd_pcm_debug_name(substream, name, sizeof(name));
+ pcm_warn(substream->pcm, "XRUN: %s\n", name);
+ dump_stack_on_xrun(substream);
}
-#endif
}
-static inline snd_pcm_uframes_t snd_pcm_update_hw_ptr_pos(struct snd_pcm_substream *substream,
- struct snd_pcm_runtime *runtime)
-{
+#ifdef CONFIG_SND_PCM_XRUN_DEBUG
+#define hw_ptr_error(substream, fmt, args...) \
+ do { \
+ if (xrun_debug(substream, XRUN_DEBUG_BASIC)) { \
+ xrun_log_show(substream); \
+ pr_err_ratelimited("ALSA: PCM: " fmt, ##args); \
+ dump_stack_on_xrun(substream); \
+ } \
+ } while (0)
+
+#define XRUN_LOG_CNT 10
+
+struct hwptr_log_entry {
+ unsigned int in_interrupt;
+ unsigned long jiffies;
snd_pcm_uframes_t pos;
+ snd_pcm_uframes_t period_size;
+ snd_pcm_uframes_t buffer_size;
+ snd_pcm_uframes_t old_hw_ptr;
+ snd_pcm_uframes_t hw_ptr_base;
+};
- pos = substream->ops->pointer(substream);
- if (pos == SNDRV_PCM_POS_XRUN)
- return pos; /* XRUN */
- if (runtime->tstamp_mode & SNDRV_PCM_TSTAMP_MMAP)
- getnstimeofday((struct timespec *)&runtime->status->tstamp);
-#ifdef CONFIG_SND_DEBUG
- if (pos >= runtime->buffer_size) {
- snd_printk(KERN_ERR "BUG: stream = %i, pos = 0x%lx, buffer size = 0x%lx, period size = 0x%lx\n", substream->stream, pos, runtime->buffer_size, runtime->period_size);
+struct snd_pcm_hwptr_log {
+ unsigned int idx;
+ unsigned int hit: 1;
+ struct hwptr_log_entry entries[XRUN_LOG_CNT];
+};
+
+static void xrun_log(struct snd_pcm_substream *substream,
+ snd_pcm_uframes_t pos, int in_interrupt)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct snd_pcm_hwptr_log *log = runtime->hwptr_log;
+ struct hwptr_log_entry *entry;
+
+ if (log == NULL) {
+ log = kzalloc(sizeof(*log), GFP_ATOMIC);
+ if (log == NULL)
+ return;
+ runtime->hwptr_log = log;
+ } else {
+ if (xrun_debug(substream, XRUN_DEBUG_LOGONCE) && log->hit)
+ return;
}
-#endif
- pos -= pos % runtime->min_align;
- return pos;
+ entry = &log->entries[log->idx];
+ entry->in_interrupt = in_interrupt;
+ entry->jiffies = jiffies;
+ entry->pos = pos;
+ entry->period_size = runtime->period_size;
+ entry->buffer_size = runtime->buffer_size;
+ entry->old_hw_ptr = runtime->status->hw_ptr;
+ entry->hw_ptr_base = runtime->hw_ptr_base;
+ log->idx = (log->idx + 1) % XRUN_LOG_CNT;
}
-static inline int snd_pcm_update_hw_ptr_post(struct snd_pcm_substream *substream,
- struct snd_pcm_runtime *runtime)
+static void xrun_log_show(struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_hwptr_log *log = substream->runtime->hwptr_log;
+ struct hwptr_log_entry *entry;
+ char name[16];
+ unsigned int idx;
+ int cnt;
+
+ if (log == NULL)
+ return;
+ if (xrun_debug(substream, XRUN_DEBUG_LOGONCE) && log->hit)
+ return;
+ snd_pcm_debug_name(substream, name, sizeof(name));
+ for (cnt = 0, idx = log->idx; cnt < XRUN_LOG_CNT; cnt++) {
+ entry = &log->entries[idx];
+ if (entry->period_size == 0)
+ break;
+ pr_info("hwptr log: %s: %sj=%lu, pos=%ld/%ld/%ld, "
+ "hwptr=%ld/%ld\n",
+ name, entry->in_interrupt ? "[Q] " : "",
+ entry->jiffies,
+ (unsigned long)entry->pos,
+ (unsigned long)entry->period_size,
+ (unsigned long)entry->buffer_size,
+ (unsigned long)entry->old_hw_ptr,
+ (unsigned long)entry->hw_ptr_base);
+ idx++;
+ idx %= XRUN_LOG_CNT;
+ }
+ log->hit = 1;
+}
+
+#else /* ! CONFIG_SND_PCM_XRUN_DEBUG */
+
+#define hw_ptr_error(substream, fmt, args...) do { } while (0)
+#define xrun_log(substream, pos, in_interrupt) do { } while (0)
+#define xrun_log_show(substream) do { } while (0)
+
+#endif
+
+int snd_pcm_update_state(struct snd_pcm_substream *substream,
+ struct snd_pcm_runtime *runtime)
{
snd_pcm_uframes_t avail;
@@ -172,104 +285,277 @@ static inline int snd_pcm_update_hw_ptr_post(struct snd_pcm_substream *substream
avail = snd_pcm_capture_avail(runtime);
if (avail > runtime->avail_max)
runtime->avail_max = avail;
- if (avail >= runtime->stop_threshold) {
- if (substream->runtime->status->state == SNDRV_PCM_STATE_DRAINING)
+ if (runtime->status->state == SNDRV_PCM_STATE_DRAINING) {
+ if (avail >= runtime->buffer_size) {
snd_pcm_drain_done(substream);
- else
+ return -EPIPE;
+ }
+ } else {
+ if (avail >= runtime->stop_threshold) {
xrun(substream);
- return -EPIPE;
+ return -EPIPE;
+ }
}
- if (avail >= runtime->control->avail_min)
+ if (runtime->twake) {
+ if (avail >= runtime->twake)
+ wake_up(&runtime->tsleep);
+ } else if (avail >= runtime->control->avail_min)
wake_up(&runtime->sleep);
return 0;
}
-static inline int snd_pcm_update_hw_ptr_interrupt(struct snd_pcm_substream *substream)
+static int snd_pcm_update_hw_ptr0(struct snd_pcm_substream *substream,
+ unsigned int in_interrupt)
{
struct snd_pcm_runtime *runtime = substream->runtime;
snd_pcm_uframes_t pos;
- snd_pcm_uframes_t new_hw_ptr, hw_ptr_interrupt;
- snd_pcm_sframes_t delta;
+ snd_pcm_uframes_t old_hw_ptr, new_hw_ptr, hw_base;
+ snd_pcm_sframes_t hdelta, delta;
+ unsigned long jdelta;
+ unsigned long curr_jiffies;
+ struct timespec curr_tstamp;
+ struct timespec audio_tstamp;
+ int crossed_boundary = 0;
+
+ old_hw_ptr = runtime->status->hw_ptr;
+
+ /*
+ * group pointer, time and jiffies reads to allow for more
+ * accurate correlations/corrections.
+ * The values are stored at the end of this routine after
+ * corrections for hw_ptr position
+ */
+ pos = substream->ops->pointer(substream);
+ curr_jiffies = jiffies;
+ if (runtime->tstamp_mode == SNDRV_PCM_TSTAMP_ENABLE) {
+ snd_pcm_gettime(runtime, (struct timespec *)&curr_tstamp);
+
+ if ((runtime->hw.info & SNDRV_PCM_INFO_HAS_WALL_CLOCK) &&
+ (substream->ops->wall_clock))
+ substream->ops->wall_clock(substream, &audio_tstamp);
+ }
- pos = snd_pcm_update_hw_ptr_pos(substream, runtime);
if (pos == SNDRV_PCM_POS_XRUN) {
xrun(substream);
return -EPIPE;
}
- if (runtime->period_size == runtime->buffer_size)
- goto __next_buf;
- new_hw_ptr = runtime->hw_ptr_base + pos;
- hw_ptr_interrupt = runtime->hw_ptr_interrupt + runtime->period_size;
-
- delta = hw_ptr_interrupt - new_hw_ptr;
- if (delta > 0) {
- if ((snd_pcm_uframes_t)delta < runtime->buffer_size / 2) {
-#ifdef CONFIG_SND_DEBUG
- if (runtime->periods > 1 && substream->pstr->xrun_debug) {
- snd_printd(KERN_ERR "Unexpected hw_pointer value [1] (stream = %i, delta: -%ld, max jitter = %ld): wrong interrupt acknowledge?\n", substream->stream, (long) delta, runtime->buffer_size / 2);
- if (substream->pstr->xrun_debug > 1)
- dump_stack();
+ if (pos >= runtime->buffer_size) {
+ if (printk_ratelimit()) {
+ char name[16];
+ snd_pcm_debug_name(substream, name, sizeof(name));
+ xrun_log_show(substream);
+ pcm_err(substream->pcm,
+ "XRUN: %s, pos = %ld, buffer size = %ld, period size = %ld\n",
+ name, pos, runtime->buffer_size,
+ runtime->period_size);
+ }
+ pos = 0;
+ }
+ pos -= pos % runtime->min_align;
+ if (xrun_debug(substream, XRUN_DEBUG_LOG))
+ xrun_log(substream, pos, in_interrupt);
+ hw_base = runtime->hw_ptr_base;
+ new_hw_ptr = hw_base + pos;
+ if (in_interrupt) {
+ /* we know that one period was processed */
+ /* delta = "expected next hw_ptr" for in_interrupt != 0 */
+ delta = runtime->hw_ptr_interrupt + runtime->period_size;
+ if (delta > new_hw_ptr) {
+ /* check for double acknowledged interrupts */
+ hdelta = curr_jiffies - runtime->hw_ptr_jiffies;
+ if (hdelta > runtime->hw_ptr_buffer_jiffies/2) {
+ hw_base += runtime->buffer_size;
+ if (hw_base >= runtime->boundary) {
+ hw_base = 0;
+ crossed_boundary++;
+ }
+ new_hw_ptr = hw_base + pos;
+ goto __delta;
}
-#endif
- return 0;
}
- __next_buf:
- runtime->hw_ptr_base += runtime->buffer_size;
- if (runtime->hw_ptr_base == runtime->boundary)
- runtime->hw_ptr_base = 0;
- new_hw_ptr = runtime->hw_ptr_base + pos;
+ }
+ /* new_hw_ptr might be lower than old_hw_ptr in case when */
+ /* pointer crosses the end of the ring buffer */
+ if (new_hw_ptr < old_hw_ptr) {
+ hw_base += runtime->buffer_size;
+ if (hw_base >= runtime->boundary) {
+ hw_base = 0;
+ crossed_boundary++;
+ }
+ new_hw_ptr = hw_base + pos;
+ }
+ __delta:
+ delta = new_hw_ptr - old_hw_ptr;
+ if (delta < 0)
+ delta += runtime->boundary;
+ if (xrun_debug(substream, in_interrupt ?
+ XRUN_DEBUG_PERIODUPDATE : XRUN_DEBUG_HWPTRUPDATE)) {
+ char name[16];
+ snd_pcm_debug_name(substream, name, sizeof(name));
+ pcm_dbg(substream->pcm,
+ "%s_update: %s: pos=%u/%u/%u, hwptr=%ld/%ld/%ld/%ld\n",
+ in_interrupt ? "period" : "hwptr",
+ name,
+ (unsigned int)pos,
+ (unsigned int)runtime->period_size,
+ (unsigned int)runtime->buffer_size,
+ (unsigned long)delta,
+ (unsigned long)old_hw_ptr,
+ (unsigned long)new_hw_ptr,
+ (unsigned long)runtime->hw_ptr_base);
+ }
+
+ if (runtime->no_period_wakeup) {
+ snd_pcm_sframes_t xrun_threshold;
+ /*
+ * Without regular period interrupts, we have to check
+ * the elapsed time to detect xruns.
+ */
+ jdelta = curr_jiffies - runtime->hw_ptr_jiffies;
+ if (jdelta < runtime->hw_ptr_buffer_jiffies / 2)
+ goto no_delta_check;
+ hdelta = jdelta - delta * HZ / runtime->rate;
+ xrun_threshold = runtime->hw_ptr_buffer_jiffies / 2 + 1;
+ while (hdelta > xrun_threshold) {
+ delta += runtime->buffer_size;
+ hw_base += runtime->buffer_size;
+ if (hw_base >= runtime->boundary) {
+ hw_base = 0;
+ crossed_boundary++;
+ }
+ new_hw_ptr = hw_base + pos;
+ hdelta -= runtime->hw_ptr_buffer_jiffies;
+ }
+ goto no_delta_check;
+ }
+
+ /* something must be really wrong */
+ if (delta >= runtime->buffer_size + runtime->period_size) {
+ hw_ptr_error(substream,
+ "Unexpected hw_pointer value %s"
+ "(stream=%i, pos=%ld, new_hw_ptr=%ld, "
+ "old_hw_ptr=%ld)\n",
+ in_interrupt ? "[Q] " : "[P]",
+ substream->stream, (long)pos,
+ (long)new_hw_ptr, (long)old_hw_ptr);
+ return 0;
}
+ /* Do jiffies check only in xrun_debug mode */
+ if (!xrun_debug(substream, XRUN_DEBUG_JIFFIESCHECK))
+ goto no_jiffies_check;
+
+ /* Skip the jiffies check for hardwares with BATCH flag.
+ * Such hardware usually just increases the position at each IRQ,
+ * thus it can't give any strange position.
+ */
+ if (runtime->hw.info & SNDRV_PCM_INFO_BATCH)
+ goto no_jiffies_check;
+ hdelta = delta;
+ if (hdelta < runtime->delay)
+ goto no_jiffies_check;
+ hdelta -= runtime->delay;
+ jdelta = curr_jiffies - runtime->hw_ptr_jiffies;
+ if (((hdelta * HZ) / runtime->rate) > jdelta + HZ/100) {
+ delta = jdelta /
+ (((runtime->period_size * HZ) / runtime->rate)
+ + HZ/100);
+ /* move new_hw_ptr according jiffies not pos variable */
+ new_hw_ptr = old_hw_ptr;
+ hw_base = delta;
+ /* use loop to avoid checks for delta overflows */
+ /* the delta value is small or zero in most cases */
+ while (delta > 0) {
+ new_hw_ptr += runtime->period_size;
+ if (new_hw_ptr >= runtime->boundary) {
+ new_hw_ptr -= runtime->boundary;
+ crossed_boundary--;
+ }
+ delta--;
+ }
+ /* align hw_base to buffer_size */
+ hw_ptr_error(substream,
+ "hw_ptr skipping! %s"
+ "(pos=%ld, delta=%ld, period=%ld, "
+ "jdelta=%lu/%lu/%lu, hw_ptr=%ld/%ld)\n",
+ in_interrupt ? "[Q] " : "",
+ (long)pos, (long)hdelta,
+ (long)runtime->period_size, jdelta,
+ ((hdelta * HZ) / runtime->rate), hw_base,
+ (unsigned long)old_hw_ptr,
+ (unsigned long)new_hw_ptr);
+ /* reset values to proper state */
+ delta = 0;
+ hw_base = new_hw_ptr - (new_hw_ptr % runtime->buffer_size);
+ }
+ no_jiffies_check:
+ if (delta > runtime->period_size + runtime->period_size / 2) {
+ hw_ptr_error(substream,
+ "Lost interrupts? %s"
+ "(stream=%i, delta=%ld, new_hw_ptr=%ld, "
+ "old_hw_ptr=%ld)\n",
+ in_interrupt ? "[Q] " : "",
+ substream->stream, (long)delta,
+ (long)new_hw_ptr,
+ (long)old_hw_ptr);
+ }
+
+ no_delta_check:
+ if (runtime->status->hw_ptr == new_hw_ptr)
+ return 0;
+
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK &&
runtime->silence_size > 0)
snd_pcm_playback_silence(substream, new_hw_ptr);
+ if (in_interrupt) {
+ delta = new_hw_ptr - runtime->hw_ptr_interrupt;
+ if (delta < 0)
+ delta += runtime->boundary;
+ delta -= (snd_pcm_uframes_t)delta % runtime->period_size;
+ runtime->hw_ptr_interrupt += delta;
+ if (runtime->hw_ptr_interrupt >= runtime->boundary)
+ runtime->hw_ptr_interrupt -= runtime->boundary;
+ }
+ runtime->hw_ptr_base = hw_base;
runtime->status->hw_ptr = new_hw_ptr;
- runtime->hw_ptr_interrupt = new_hw_ptr - new_hw_ptr % runtime->period_size;
+ runtime->hw_ptr_jiffies = curr_jiffies;
+ if (crossed_boundary) {
+ snd_BUG_ON(crossed_boundary != 1);
+ runtime->hw_ptr_wrap += runtime->boundary;
+ }
+ if (runtime->tstamp_mode == SNDRV_PCM_TSTAMP_ENABLE) {
+ runtime->status->tstamp = curr_tstamp;
+
+ if (!(runtime->hw.info & SNDRV_PCM_INFO_HAS_WALL_CLOCK)) {
+ /*
+ * no wall clock available, provide audio timestamp
+ * derived from pointer position+delay
+ */
+ u64 audio_frames, audio_nsecs;
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ audio_frames = runtime->hw_ptr_wrap
+ + runtime->status->hw_ptr
+ - runtime->delay;
+ else
+ audio_frames = runtime->hw_ptr_wrap
+ + runtime->status->hw_ptr
+ + runtime->delay;
+ audio_nsecs = div_u64(audio_frames * 1000000000LL,
+ runtime->rate);
+ audio_tstamp = ns_to_timespec(audio_nsecs);
+ }
+ runtime->status->audio_tstamp = audio_tstamp;
+ }
- return snd_pcm_update_hw_ptr_post(substream, runtime);
+ return snd_pcm_update_state(substream, runtime);
}
/* CAUTION: call it with irq disabled */
int snd_pcm_update_hw_ptr(struct snd_pcm_substream *substream)
{
- struct snd_pcm_runtime *runtime = substream->runtime;
- snd_pcm_uframes_t pos;
- snd_pcm_uframes_t old_hw_ptr, new_hw_ptr;
- snd_pcm_sframes_t delta;
-
- old_hw_ptr = runtime->status->hw_ptr;
- pos = snd_pcm_update_hw_ptr_pos(substream, runtime);
- if (pos == SNDRV_PCM_POS_XRUN) {
- xrun(substream);
- return -EPIPE;
- }
- new_hw_ptr = runtime->hw_ptr_base + pos;
-
- delta = old_hw_ptr - new_hw_ptr;
- if (delta > 0) {
- if ((snd_pcm_uframes_t)delta < runtime->buffer_size / 2) {
-#ifdef CONFIG_SND_DEBUG
- if (runtime->periods > 2 && substream->pstr->xrun_debug) {
- snd_printd(KERN_ERR "Unexpected hw_pointer value [2] (stream = %i, delta: -%ld, max jitter = %ld): wrong interrupt acknowledge?\n", substream->stream, (long) delta, runtime->buffer_size / 2);
- if (substream->pstr->xrun_debug > 1)
- dump_stack();
- }
-#endif
- return 0;
- }
- runtime->hw_ptr_base += runtime->buffer_size;
- if (runtime->hw_ptr_base == runtime->boundary)
- runtime->hw_ptr_base = 0;
- new_hw_ptr = runtime->hw_ptr_base + pos;
- }
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK &&
- runtime->silence_size > 0)
- snd_pcm_playback_silence(substream, new_hw_ptr);
-
- runtime->status->hw_ptr = new_hw_ptr;
-
- return snd_pcm_update_hw_ptr_post(substream, runtime);
+ return snd_pcm_update_hw_ptr0(substream, 0);
}
/**
@@ -280,7 +566,8 @@ int snd_pcm_update_hw_ptr(struct snd_pcm_substream *substream)
*
* Sets the given PCM operators to the pcm instance.
*/
-void snd_pcm_set_ops(struct snd_pcm *pcm, int direction, struct snd_pcm_ops *ops)
+void snd_pcm_set_ops(struct snd_pcm *pcm, int direction,
+ const struct snd_pcm_ops *ops)
{
struct snd_pcm_str *stream = &pcm->streams[direction];
struct snd_pcm_substream *substream;
@@ -289,6 +576,7 @@ void snd_pcm_set_ops(struct snd_pcm *pcm, int direction, struct snd_pcm_ops *ops
substream->ops = ops;
}
+EXPORT_SYMBOL(snd_pcm_set_ops);
/**
* snd_pcm_sync - set the PCM sync id
@@ -306,13 +594,12 @@ void snd_pcm_set_sync(struct snd_pcm_substream *substream)
runtime->sync.id32[3] = -1;
}
+EXPORT_SYMBOL(snd_pcm_set_sync);
+
/*
* Standard ioctl routine
*/
-/* Code taken from alsa-lib */
-#define assert(a) snd_assert((a), return -EINVAL)
-
static inline unsigned int div32(unsigned int a, unsigned int b,
unsigned int *r)
{
@@ -357,11 +644,11 @@ static inline unsigned int muldiv32(unsigned int a, unsigned int b,
{
u_int64_t n = (u_int64_t) a * b;
if (c == 0) {
- snd_assert(n > 0, );
+ snd_BUG_ON(!n);
*r = 0;
return UINT_MAX;
}
- div64_32(&n, c, r);
+ n = div_u64_rem(n, c, r);
if (n >= UINT_MAX) {
*r = 0;
return UINT_MAX;
@@ -369,56 +656,6 @@ static inline unsigned int muldiv32(unsigned int a, unsigned int b,
return n;
}
-static int snd_interval_refine_min(struct snd_interval *i, unsigned int min, int openmin)
-{
- int changed = 0;
- assert(!snd_interval_empty(i));
- if (i->min < min) {
- i->min = min;
- i->openmin = openmin;
- changed = 1;
- } else if (i->min == min && !i->openmin && openmin) {
- i->openmin = 1;
- changed = 1;
- }
- if (i->integer) {
- if (i->openmin) {
- i->min++;
- i->openmin = 0;
- }
- }
- if (snd_interval_checkempty(i)) {
- snd_interval_none(i);
- return -EINVAL;
- }
- return changed;
-}
-
-static int snd_interval_refine_max(struct snd_interval *i, unsigned int max, int openmax)
-{
- int changed = 0;
- assert(!snd_interval_empty(i));
- if (i->max > max) {
- i->max = max;
- i->openmax = openmax;
- changed = 1;
- } else if (i->max == max && !i->openmax && openmax) {
- i->openmax = 1;
- changed = 1;
- }
- if (i->integer) {
- if (i->openmax) {
- i->max--;
- i->openmax = 0;
- }
- }
- if (snd_interval_checkempty(i)) {
- snd_interval_none(i);
- return -EINVAL;
- }
- return changed;
-}
-
/**
* snd_interval_refine - refine the interval value of configurator
* @i: the interval value to refine
@@ -428,12 +665,14 @@ static int snd_interval_refine_max(struct snd_interval *i, unsigned int max, int
* The interval is changed to the range satisfying both intervals.
* The interval status (min, max, integer, etc.) are evaluated.
*
- * Returns non-zero if the value is changed, zero if not changed.
+ * Return: Positive if the value is changed, zero if it's not changed, or a
+ * negative error code.
*/
int snd_interval_refine(struct snd_interval *i, const struct snd_interval *v)
{
int changed = 0;
- assert(!snd_interval_empty(i));
+ if (snd_BUG_ON(snd_interval_empty(i)))
+ return -EINVAL;
if (i->min < v->min) {
i->min = v->min;
i->openmin = v->openmin;
@@ -472,9 +711,12 @@ int snd_interval_refine(struct snd_interval *i, const struct snd_interval *v)
return changed;
}
+EXPORT_SYMBOL(snd_interval_refine);
+
static int snd_interval_refine_first(struct snd_interval *i)
{
- assert(!snd_interval_empty(i));
+ if (snd_BUG_ON(snd_interval_empty(i)))
+ return -EINVAL;
if (snd_interval_single(i))
return 0;
i->max = i->min;
@@ -486,7 +728,8 @@ static int snd_interval_refine_first(struct snd_interval *i)
static int snd_interval_refine_last(struct snd_interval *i)
{
- assert(!snd_interval_empty(i));
+ if (snd_BUG_ON(snd_interval_empty(i)))
+ return -EINVAL;
if (snd_interval_single(i))
return 0;
i->min = i->max;
@@ -496,16 +739,6 @@ static int snd_interval_refine_last(struct snd_interval *i)
return 1;
}
-static int snd_interval_refine_set(struct snd_interval *i, unsigned int val)
-{
- struct snd_interval t;
- t.empty = 0;
- t.min = t.max = val;
- t.openmin = t.openmax = 0;
- t.integer = 1;
- return snd_interval_refine(i, &t);
-}
-
void snd_interval_mul(const struct snd_interval *a, const struct snd_interval *b, struct snd_interval *c)
{
if (a->empty || b->empty) {
@@ -621,7 +854,6 @@ void snd_interval_mulkdiv(const struct snd_interval *a, unsigned int k,
c->integer = 0;
}
-#undef assert
/* ---- */
@@ -633,16 +865,20 @@ void snd_interval_mulkdiv(const struct snd_interval *a, unsigned int k,
* @nump: pointer to store the resultant numerator
* @denp: pointer to store the resultant denominator
*
- * Returns non-zero if the value is changed, zero if not changed.
+ * Return: Positive if the value is changed, zero if it's not changed, or a
+ * negative error code.
*/
int snd_interval_ratnum(struct snd_interval *i,
unsigned int rats_count, struct snd_ratnum *rats,
unsigned int *nump, unsigned int *denp)
{
- unsigned int best_num, best_diff, best_den;
+ unsigned int best_num, best_den;
+ int best_diff;
unsigned int k;
struct snd_interval t;
int err;
+ unsigned int result_num, result_den;
+ int result_diff;
best_num = best_den = best_diff = 0;
for (k = 0; k < rats_count; ++k) {
@@ -652,7 +888,7 @@ int snd_interval_ratnum(struct snd_interval *i,
int diff;
if (q == 0)
q = 1;
- den = div_down(num, q);
+ den = div_up(num, q);
if (den < rats[k].den_min)
continue;
if (den > rats[k].den_max)
@@ -664,6 +900,8 @@ int snd_interval_ratnum(struct snd_interval *i,
den -= r;
}
diff = num - q * den;
+ if (diff < 0)
+ diff = -diff;
if (best_num == 0 ||
diff * best_den < best_diff * den) {
best_diff = diff;
@@ -678,6 +916,9 @@ int snd_interval_ratnum(struct snd_interval *i,
t.min = div_down(best_num, best_den);
t.openmin = !!(best_num % best_den);
+ result_num = best_num;
+ result_diff = best_diff;
+ result_den = best_den;
best_num = best_den = best_diff = 0;
for (k = 0; k < rats_count; ++k) {
unsigned int num = rats[k].num;
@@ -688,7 +929,7 @@ int snd_interval_ratnum(struct snd_interval *i,
i->empty = 1;
return -EINVAL;
}
- den = div_up(num, q);
+ den = div_down(num, q);
if (den > rats[k].den_max)
continue;
if (den < rats[k].den_min)
@@ -700,6 +941,8 @@ int snd_interval_ratnum(struct snd_interval *i,
den += rats[k].den_step - r;
}
diff = q * den - num;
+ if (diff < 0)
+ diff = -diff;
if (best_num == 0 ||
diff * best_den < best_diff * den) {
best_diff = diff;
@@ -719,14 +962,20 @@ int snd_interval_ratnum(struct snd_interval *i,
return err;
if (snd_interval_single(i)) {
+ if (best_diff * result_den < result_diff * best_den) {
+ result_num = best_num;
+ result_den = best_den;
+ }
if (nump)
- *nump = best_num;
+ *nump = result_num;
if (denp)
- *denp = best_den;
+ *denp = result_den;
}
return err;
}
+EXPORT_SYMBOL(snd_interval_ratnum);
+
/**
* snd_interval_ratden - refine the interval value
* @i: interval to refine
@@ -735,7 +984,8 @@ int snd_interval_ratnum(struct snd_interval *i,
* @nump: pointer to store the resultant numerator
* @denp: pointer to store the resultant denominator
*
- * Returns non-zero if the value is changed, zero if not changed.
+ * Return: Positive if the value is changed, zero if it's not changed, or a
+ * negative error code.
*/
static int snd_interval_ratden(struct snd_interval *i,
unsigned int rats_count, struct snd_ratden *rats,
@@ -834,49 +1084,35 @@ static int snd_interval_ratden(struct snd_interval *i,
* When mask is non-zero, only the elements corresponding to bit 1 are
* evaluated.
*
- * Returns non-zero if the value is changed, zero if not changed.
+ * Return: Positive if the value is changed, zero if it's not changed, or a
+ * negative error code.
*/
-int snd_interval_list(struct snd_interval *i, unsigned int count, unsigned int *list, unsigned int mask)
+int snd_interval_list(struct snd_interval *i, unsigned int count,
+ const unsigned int *list, unsigned int mask)
{
unsigned int k;
- int changed = 0;
+ struct snd_interval list_range;
+
+ if (!count) {
+ i->empty = 1;
+ return -EINVAL;
+ }
+ snd_interval_any(&list_range);
+ list_range.min = UINT_MAX;
+ list_range.max = 0;
for (k = 0; k < count; k++) {
if (mask && !(mask & (1 << k)))
continue;
- if (i->min == list[k] && !i->openmin)
- goto _l1;
- if (i->min < list[k]) {
- i->min = list[k];
- i->openmin = 0;
- changed = 1;
- goto _l1;
- }
- }
- i->empty = 1;
- return -EINVAL;
- _l1:
- for (k = count; k-- > 0;) {
- if (mask && !(mask & (1 << k)))
+ if (!snd_interval_test(i, list[k]))
continue;
- if (i->max == list[k] && !i->openmax)
- goto _l2;
- if (i->max > list[k]) {
- i->max = list[k];
- i->openmax = 0;
- changed = 1;
- goto _l2;
- }
+ list_range.min = min(list_range.min, list[k]);
+ list_range.max = max(list_range.max, list[k]);
}
- i->empty = 1;
- return -EINVAL;
- _l2:
- if (snd_interval_checkempty(i)) {
- i->empty = 1;
- return -EINVAL;
- }
- return changed;
+ return snd_interval_refine(i, &list_range);
}
+EXPORT_SYMBOL(snd_interval_list);
+
static int snd_interval_step(struct snd_interval *i, unsigned int min, unsigned int step)
{
unsigned int n;
@@ -909,7 +1145,7 @@ static int snd_interval_step(struct snd_interval *i, unsigned int min, unsigned
* @private: the private data pointer passed to function
* @dep: the dependent variables
*
- * Returns zero if successful, or a negative error code on failure.
+ * Return: Zero if successful, or a negative error code on failure.
*/
int snd_pcm_hw_rule_add(struct snd_pcm_runtime *runtime, unsigned int cond,
int var,
@@ -925,8 +1161,10 @@ int snd_pcm_hw_rule_add(struct snd_pcm_runtime *runtime, unsigned int cond,
struct snd_pcm_hw_rule *new;
unsigned int new_rules = constrs->rules_all + 16;
new = kcalloc(new_rules, sizeof(*c), GFP_KERNEL);
- if (!new)
+ if (!new) {
+ va_end(args);
return -ENOMEM;
+ }
if (constrs->rules) {
memcpy(new, constrs->rules,
constrs->rules_num * sizeof(*c));
@@ -942,7 +1180,10 @@ int snd_pcm_hw_rule_add(struct snd_pcm_runtime *runtime, unsigned int cond,
c->private = private;
k = 0;
while (1) {
- snd_assert(k < ARRAY_SIZE(c->deps), return -EINVAL);
+ if (snd_BUG_ON(k >= ARRAY_SIZE(c->deps))) {
+ va_end(args);
+ return -EINVAL;
+ }
c->deps[k++] = dep;
if (dep < 0)
break;
@@ -951,15 +1192,19 @@ int snd_pcm_hw_rule_add(struct snd_pcm_runtime *runtime, unsigned int cond,
constrs->rules_num++;
va_end(args);
return 0;
-}
+}
+
+EXPORT_SYMBOL(snd_pcm_hw_rule_add);
/**
- * snd_pcm_hw_constraint_mask
+ * snd_pcm_hw_constraint_mask - apply the given bitmap mask constraint
* @runtime: PCM runtime instance
* @var: hw_params variable to apply the mask
* @mask: the bitmap mask
*
- * Apply the constraint of the given bitmap mask to a mask parameter.
+ * Apply the constraint of the given bitmap mask to a 32-bit mask parameter.
+ *
+ * Return: Zero if successful, or a negative error code on failure.
*/
int snd_pcm_hw_constraint_mask(struct snd_pcm_runtime *runtime, snd_pcm_hw_param_t var,
u_int32_t mask)
@@ -974,12 +1219,14 @@ int snd_pcm_hw_constraint_mask(struct snd_pcm_runtime *runtime, snd_pcm_hw_param
}
/**
- * snd_pcm_hw_constraint_mask64
+ * snd_pcm_hw_constraint_mask64 - apply the given bitmap mask constraint
* @runtime: PCM runtime instance
* @var: hw_params variable to apply the mask
* @mask: the 64bit bitmap mask
*
- * Apply the constraint of the given bitmap mask to a mask parameter.
+ * Apply the constraint of the given bitmap mask to a 64-bit mask parameter.
+ *
+ * Return: Zero if successful, or a negative error code on failure.
*/
int snd_pcm_hw_constraint_mask64(struct snd_pcm_runtime *runtime, snd_pcm_hw_param_t var,
u_int64_t mask)
@@ -993,13 +1240,17 @@ int snd_pcm_hw_constraint_mask64(struct snd_pcm_runtime *runtime, snd_pcm_hw_par
return -EINVAL;
return 0;
}
+EXPORT_SYMBOL(snd_pcm_hw_constraint_mask64);
/**
- * snd_pcm_hw_constraint_integer
+ * snd_pcm_hw_constraint_integer - apply an integer constraint to an interval
* @runtime: PCM runtime instance
* @var: hw_params variable to apply the integer constraint
*
* Apply the constraint of integer to an interval parameter.
+ *
+ * Return: Positive if the value is changed, zero if it's not changed, or a
+ * negative error code.
*/
int snd_pcm_hw_constraint_integer(struct snd_pcm_runtime *runtime, snd_pcm_hw_param_t var)
{
@@ -1007,14 +1258,19 @@ int snd_pcm_hw_constraint_integer(struct snd_pcm_runtime *runtime, snd_pcm_hw_pa
return snd_interval_setinteger(constrs_interval(constrs, var));
}
+EXPORT_SYMBOL(snd_pcm_hw_constraint_integer);
+
/**
- * snd_pcm_hw_constraint_minmax
+ * snd_pcm_hw_constraint_minmax - apply a min/max range constraint to an interval
* @runtime: PCM runtime instance
* @var: hw_params variable to apply the range
* @min: the minimal value
* @max: the maximal value
*
* Apply the min/max range constraint to an interval parameter.
+ *
+ * Return: Positive if the value is changed, zero if it's not changed, or a
+ * negative error code.
*/
int snd_pcm_hw_constraint_minmax(struct snd_pcm_runtime *runtime, snd_pcm_hw_param_t var,
unsigned int min, unsigned int max)
@@ -1028,6 +1284,8 @@ int snd_pcm_hw_constraint_minmax(struct snd_pcm_runtime *runtime, snd_pcm_hw_par
return snd_interval_refine(constrs_interval(constrs, var), &t);
}
+EXPORT_SYMBOL(snd_pcm_hw_constraint_minmax);
+
static int snd_pcm_hw_rule_list(struct snd_pcm_hw_params *params,
struct snd_pcm_hw_rule *rule)
{
@@ -1037,24 +1295,28 @@ static int snd_pcm_hw_rule_list(struct snd_pcm_hw_params *params,
/**
- * snd_pcm_hw_constraint_list
+ * snd_pcm_hw_constraint_list - apply a list of constraints to a parameter
* @runtime: PCM runtime instance
* @cond: condition bits
* @var: hw_params variable to apply the list constraint
* @l: list
*
* Apply the list of constraints to an interval parameter.
+ *
+ * Return: Zero if successful, or a negative error code on failure.
*/
int snd_pcm_hw_constraint_list(struct snd_pcm_runtime *runtime,
unsigned int cond,
snd_pcm_hw_param_t var,
- struct snd_pcm_hw_constraint_list *l)
+ const struct snd_pcm_hw_constraint_list *l)
{
return snd_pcm_hw_rule_add(runtime, cond, var,
- snd_pcm_hw_rule_list, l,
+ snd_pcm_hw_rule_list, (void *)l,
var, -1);
}
+EXPORT_SYMBOL(snd_pcm_hw_constraint_list);
+
static int snd_pcm_hw_rule_ratnums(struct snd_pcm_hw_params *params,
struct snd_pcm_hw_rule *rule)
{
@@ -1071,11 +1333,13 @@ static int snd_pcm_hw_rule_ratnums(struct snd_pcm_hw_params *params,
}
/**
- * snd_pcm_hw_constraint_ratnums
+ * snd_pcm_hw_constraint_ratnums - apply ratnums constraint to a parameter
* @runtime: PCM runtime instance
* @cond: condition bits
* @var: hw_params variable to apply the ratnums constraint
* @r: struct snd_ratnums constriants
+ *
+ * Return: Zero if successful, or a negative error code on failure.
*/
int snd_pcm_hw_constraint_ratnums(struct snd_pcm_runtime *runtime,
unsigned int cond,
@@ -1087,6 +1351,8 @@ int snd_pcm_hw_constraint_ratnums(struct snd_pcm_runtime *runtime,
var, -1);
}
+EXPORT_SYMBOL(snd_pcm_hw_constraint_ratnums);
+
static int snd_pcm_hw_rule_ratdens(struct snd_pcm_hw_params *params,
struct snd_pcm_hw_rule *rule)
{
@@ -1102,11 +1368,13 @@ static int snd_pcm_hw_rule_ratdens(struct snd_pcm_hw_params *params,
}
/**
- * snd_pcm_hw_constraint_ratdens
+ * snd_pcm_hw_constraint_ratdens - apply ratdens constraint to a parameter
* @runtime: PCM runtime instance
* @cond: condition bits
* @var: hw_params variable to apply the ratdens constraint
* @r: struct snd_ratdens constriants
+ *
+ * Return: Zero if successful, or a negative error code on failure.
*/
int snd_pcm_hw_constraint_ratdens(struct snd_pcm_runtime *runtime,
unsigned int cond,
@@ -1118,6 +1386,8 @@ int snd_pcm_hw_constraint_ratdens(struct snd_pcm_runtime *runtime,
var, -1);
}
+EXPORT_SYMBOL(snd_pcm_hw_constraint_ratdens);
+
static int snd_pcm_hw_rule_msbits(struct snd_pcm_hw_params *params,
struct snd_pcm_hw_rule *rule)
{
@@ -1131,11 +1401,13 @@ static int snd_pcm_hw_rule_msbits(struct snd_pcm_hw_params *params,
}
/**
- * snd_pcm_hw_constraint_msbits
+ * snd_pcm_hw_constraint_msbits - add a hw constraint msbits rule
* @runtime: PCM runtime instance
* @cond: condition bits
* @width: sample bits width
* @msbits: msbits width
+ *
+ * Return: Zero if successful, or a negative error code on failure.
*/
int snd_pcm_hw_constraint_msbits(struct snd_pcm_runtime *runtime,
unsigned int cond,
@@ -1149,6 +1421,8 @@ int snd_pcm_hw_constraint_msbits(struct snd_pcm_runtime *runtime,
SNDRV_PCM_HW_PARAM_SAMPLE_BITS, -1);
}
+EXPORT_SYMBOL(snd_pcm_hw_constraint_msbits);
+
static int snd_pcm_hw_rule_step(struct snd_pcm_hw_params *params,
struct snd_pcm_hw_rule *rule)
{
@@ -1157,11 +1431,13 @@ static int snd_pcm_hw_rule_step(struct snd_pcm_hw_params *params,
}
/**
- * snd_pcm_hw_constraint_step
+ * snd_pcm_hw_constraint_step - add a hw constraint step rule
* @runtime: PCM runtime instance
* @cond: condition bits
* @var: hw_params variable to apply the step constraint
* @step: step size
+ *
+ * Return: Zero if successful, or a negative error code on failure.
*/
int snd_pcm_hw_constraint_step(struct snd_pcm_runtime *runtime,
unsigned int cond,
@@ -1173,9 +1449,11 @@ int snd_pcm_hw_constraint_step(struct snd_pcm_runtime *runtime,
var, -1);
}
+EXPORT_SYMBOL(snd_pcm_hw_constraint_step);
+
static int snd_pcm_hw_rule_pow2(struct snd_pcm_hw_params *params, struct snd_pcm_hw_rule *rule)
{
- static int pow2_sizes[] = {
+ static unsigned int pow2_sizes[] = {
1<<0, 1<<1, 1<<2, 1<<3, 1<<4, 1<<5, 1<<6, 1<<7,
1<<8, 1<<9, 1<<10, 1<<11, 1<<12, 1<<13, 1<<14, 1<<15,
1<<16, 1<<17, 1<<18, 1<<19, 1<<20, 1<<21, 1<<22, 1<<23,
@@ -1186,10 +1464,12 @@ static int snd_pcm_hw_rule_pow2(struct snd_pcm_hw_params *params, struct snd_pcm
}
/**
- * snd_pcm_hw_constraint_pow2
+ * snd_pcm_hw_constraint_pow2 - add a hw constraint power-of-2 rule
* @runtime: PCM runtime instance
* @cond: condition bits
* @var: hw_params variable to apply the power-of-2 constraint
+ *
+ * Return: Zero if successful, or a negative error code on failure.
*/
int snd_pcm_hw_constraint_pow2(struct snd_pcm_runtime *runtime,
unsigned int cond,
@@ -1200,11 +1480,35 @@ int snd_pcm_hw_constraint_pow2(struct snd_pcm_runtime *runtime,
var, -1);
}
-/* To use the same code we have in alsa-lib */
-#define assert(i) snd_assert((i), return -EINVAL)
-#ifndef INT_MIN
-#define INT_MIN ((int)((unsigned int)INT_MAX+1))
-#endif
+EXPORT_SYMBOL(snd_pcm_hw_constraint_pow2);
+
+static int snd_pcm_hw_rule_noresample_func(struct snd_pcm_hw_params *params,
+ struct snd_pcm_hw_rule *rule)
+{
+ unsigned int base_rate = (unsigned int)(uintptr_t)rule->private;
+ struct snd_interval *rate;
+
+ rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
+ return snd_interval_list(rate, 1, &base_rate, 0);
+}
+
+/**
+ * snd_pcm_hw_rule_noresample - add a rule to allow disabling hw resampling
+ * @runtime: PCM runtime instance
+ * @base_rate: the rate at which the hardware does not resample
+ *
+ * Return: Zero if successful, or a negative error code on failure.
+ */
+int snd_pcm_hw_rule_noresample(struct snd_pcm_runtime *runtime,
+ unsigned int base_rate)
+{
+ return snd_pcm_hw_rule_add(runtime, SNDRV_PCM_HW_PARAMS_NORESAMPLE,
+ SNDRV_PCM_HW_PARAM_RATE,
+ snd_pcm_hw_rule_noresample_func,
+ (void *)(uintptr_t)base_rate,
+ SNDRV_PCM_HW_PARAM_RATE, -1);
+}
+EXPORT_SYMBOL(snd_pcm_hw_rule_noresample);
static void _snd_pcm_hw_param_any(struct snd_pcm_hw_params *params,
snd_pcm_hw_param_t var)
@@ -1224,18 +1528,6 @@ static void _snd_pcm_hw_param_any(struct snd_pcm_hw_params *params,
snd_BUG();
}
-#if 0
-/*
- * snd_pcm_hw_param_any
- */
-int snd_pcm_hw_param_any(struct snd_pcm_substream *pcm, struct snd_pcm_hw_params *params,
- snd_pcm_hw_param_t var)
-{
- _snd_pcm_hw_param_any(params, var);
- return snd_pcm_hw_refine(pcm, params);
-}
-#endif /* 0 */
-
void _snd_pcm_hw_params_any(struct snd_pcm_hw_params *params)
{
unsigned int k;
@@ -1247,30 +1539,19 @@ void _snd_pcm_hw_params_any(struct snd_pcm_hw_params *params)
params->info = ~0U;
}
-#if 0
-/*
- * snd_pcm_hw_params_any
- *
- * Fill PARAMS with full configuration space boundaries
- */
-int snd_pcm_hw_params_any(struct snd_pcm_substream *pcm, struct snd_pcm_hw_params *params)
-{
- _snd_pcm_hw_params_any(params);
- return snd_pcm_hw_refine(pcm, params);
-}
-#endif /* 0 */
+EXPORT_SYMBOL(_snd_pcm_hw_params_any);
/**
- * snd_pcm_hw_param_value
+ * snd_pcm_hw_param_value - return @params field @var value
* @params: the hw_params instance
* @var: parameter to retrieve
- * @dir: pointer to the direction (-1,0,1) or NULL
+ * @dir: pointer to the direction (-1,0,1) or %NULL
*
- * Return the value for field PAR if it's fixed in configuration space
- * defined by PARAMS. Return -EINVAL otherwise
+ * Return: The value for field @var if it's fixed in configuration space
+ * defined by @params. -%EINVAL otherwise.
*/
-static int snd_pcm_hw_param_value(const struct snd_pcm_hw_params *params,
- snd_pcm_hw_param_t var, int *dir)
+int snd_pcm_hw_param_value(const struct snd_pcm_hw_params *params,
+ snd_pcm_hw_param_t var, int *dir)
{
if (hw_is_mask(var)) {
const struct snd_mask *mask = hw_param_mask_c(params, var);
@@ -1288,61 +1569,10 @@ static int snd_pcm_hw_param_value(const struct snd_pcm_hw_params *params,
*dir = i->openmin;
return snd_interval_value(i);
}
- assert(0);
return -EINVAL;
}
-/**
- * snd_pcm_hw_param_value_min
- * @params: the hw_params instance
- * @var: parameter to retrieve
- * @dir: pointer to the direction (-1,0,1) or NULL
- *
- * Return the minimum value for field PAR.
- */
-unsigned int snd_pcm_hw_param_value_min(const struct snd_pcm_hw_params *params,
- snd_pcm_hw_param_t var, int *dir)
-{
- if (hw_is_mask(var)) {
- if (dir)
- *dir = 0;
- return snd_mask_min(hw_param_mask_c(params, var));
- }
- if (hw_is_interval(var)) {
- const struct snd_interval *i = hw_param_interval_c(params, var);
- if (dir)
- *dir = i->openmin;
- return snd_interval_min(i);
- }
- assert(0);
- return -EINVAL;
-}
-
-/**
- * snd_pcm_hw_param_value_max
- * @params: the hw_params instance
- * @var: parameter to retrieve
- * @dir: pointer to the direction (-1,0,1) or NULL
- *
- * Return the maximum value for field PAR.
- */
-unsigned int snd_pcm_hw_param_value_max(const struct snd_pcm_hw_params *params,
- snd_pcm_hw_param_t var, int *dir)
-{
- if (hw_is_mask(var)) {
- if (dir)
- *dir = 0;
- return snd_mask_max(hw_param_mask_c(params, var));
- }
- if (hw_is_interval(var)) {
- const struct snd_interval *i = hw_param_interval_c(params, var);
- if (dir)
- *dir = - (int) i->openmax;
- return snd_interval_max(i);
- }
- assert(0);
- return -EINVAL;
-}
+EXPORT_SYMBOL(snd_pcm_hw_param_value);
void _snd_pcm_hw_param_setempty(struct snd_pcm_hw_params *params,
snd_pcm_hw_param_t var)
@@ -1360,42 +1590,7 @@ void _snd_pcm_hw_param_setempty(struct snd_pcm_hw_params *params,
}
}
-int _snd_pcm_hw_param_setinteger(struct snd_pcm_hw_params *params,
- snd_pcm_hw_param_t var)
-{
- int changed;
- assert(hw_is_interval(var));
- changed = snd_interval_setinteger(hw_param_interval(params, var));
- if (changed) {
- params->cmask |= 1 << var;
- params->rmask |= 1 << var;
- }
- return changed;
-}
-
-#if 0
-/*
- * snd_pcm_hw_param_setinteger
- *
- * Inside configuration space defined by PARAMS remove from PAR all
- * non integer values. Reduce configuration space accordingly.
- * Return -EINVAL if the configuration space is empty
- */
-int snd_pcm_hw_param_setinteger(struct snd_pcm_substream *pcm,
- struct snd_pcm_hw_params *params,
- snd_pcm_hw_param_t var)
-{
- int changed = _snd_pcm_hw_param_setinteger(params, var);
- if (changed < 0)
- return changed;
- if (params->rmask) {
- int err = snd_pcm_hw_refine(pcm, params);
- if (err < 0)
- return err;
- }
- return 0;
-}
-#endif /* 0 */
+EXPORT_SYMBOL(_snd_pcm_hw_param_setempty);
static int _snd_pcm_hw_param_first(struct snd_pcm_hw_params *params,
snd_pcm_hw_param_t var)
@@ -1405,10 +1600,8 @@ static int _snd_pcm_hw_param_first(struct snd_pcm_hw_params *params,
changed = snd_mask_refine_first(hw_param_mask(params, var));
else if (hw_is_interval(var))
changed = snd_interval_refine_first(hw_param_interval(params, var));
- else {
- assert(0);
+ else
return -EINVAL;
- }
if (changed) {
params->cmask |= 1 << var;
params->rmask |= 1 << var;
@@ -1418,30 +1611,34 @@ static int _snd_pcm_hw_param_first(struct snd_pcm_hw_params *params,
/**
- * snd_pcm_hw_param_first
+ * snd_pcm_hw_param_first - refine config space and return minimum value
* @pcm: PCM instance
* @params: the hw_params instance
* @var: parameter to retrieve
- * @dir: pointer to the direction (-1,0,1) or NULL
+ * @dir: pointer to the direction (-1,0,1) or %NULL
*
- * Inside configuration space defined by PARAMS remove from PAR all
+ * Inside configuration space defined by @params remove from @var all
* values > minimum. Reduce configuration space accordingly.
- * Return the minimum.
+ *
+ * Return: The minimum, or a negative error code on failure.
*/
-static int snd_pcm_hw_param_first(struct snd_pcm_substream *pcm,
- struct snd_pcm_hw_params *params,
- snd_pcm_hw_param_t var, int *dir)
+int snd_pcm_hw_param_first(struct snd_pcm_substream *pcm,
+ struct snd_pcm_hw_params *params,
+ snd_pcm_hw_param_t var, int *dir)
{
int changed = _snd_pcm_hw_param_first(params, var);
if (changed < 0)
return changed;
if (params->rmask) {
int err = snd_pcm_hw_refine(pcm, params);
- assert(err >= 0);
+ if (snd_BUG_ON(err < 0))
+ return err;
}
return snd_pcm_hw_param_value(params, var, dir);
}
+EXPORT_SYMBOL(snd_pcm_hw_param_first);
+
static int _snd_pcm_hw_param_last(struct snd_pcm_hw_params *params,
snd_pcm_hw_param_t var)
{
@@ -1450,10 +1647,8 @@ static int _snd_pcm_hw_param_last(struct snd_pcm_hw_params *params,
changed = snd_mask_refine_last(hw_param_mask(params, var));
else if (hw_is_interval(var))
changed = snd_interval_refine_last(hw_param_interval(params, var));
- else {
- assert(0);
+ else
return -EINVAL;
- }
if (changed) {
params->cmask |= 1 << var;
params->rmask |= 1 << var;
@@ -1463,435 +1658,73 @@ static int _snd_pcm_hw_param_last(struct snd_pcm_hw_params *params,
/**
- * snd_pcm_hw_param_last
+ * snd_pcm_hw_param_last - refine config space and return maximum value
* @pcm: PCM instance
* @params: the hw_params instance
* @var: parameter to retrieve
- * @dir: pointer to the direction (-1,0,1) or NULL
+ * @dir: pointer to the direction (-1,0,1) or %NULL
*
- * Inside configuration space defined by PARAMS remove from PAR all
+ * Inside configuration space defined by @params remove from @var all
* values < maximum. Reduce configuration space accordingly.
- * Return the maximum.
- */
-static int snd_pcm_hw_param_last(struct snd_pcm_substream *pcm,
- struct snd_pcm_hw_params *params,
- snd_pcm_hw_param_t var, int *dir)
-{
- int changed = _snd_pcm_hw_param_last(params, var);
- if (changed < 0)
- return changed;
- if (params->rmask) {
- int err = snd_pcm_hw_refine(pcm, params);
- assert(err >= 0);
- }
- return snd_pcm_hw_param_value(params, var, dir);
-}
-
-int _snd_pcm_hw_param_min(struct snd_pcm_hw_params *params,
- snd_pcm_hw_param_t var, unsigned int val, int dir)
-{
- int changed;
- int open = 0;
- if (dir) {
- if (dir > 0) {
- open = 1;
- } else if (dir < 0) {
- if (val > 0) {
- open = 1;
- val--;
- }
- }
- }
- if (hw_is_mask(var))
- changed = snd_mask_refine_min(hw_param_mask(params, var), val + !!open);
- else if (hw_is_interval(var))
- changed = snd_interval_refine_min(hw_param_interval(params, var), val, open);
- else {
- assert(0);
- return -EINVAL;
- }
- if (changed) {
- params->cmask |= 1 << var;
- params->rmask |= 1 << var;
- }
- return changed;
-}
-
-/**
- * snd_pcm_hw_param_min
- * @pcm: PCM instance
- * @params: the hw_params instance
- * @var: parameter to retrieve
- * @val: minimal value
- * @dir: pointer to the direction (-1,0,1) or NULL
- *
- * Inside configuration space defined by PARAMS remove from PAR all
- * values < VAL. Reduce configuration space accordingly.
- * Return new minimum or -EINVAL if the configuration space is empty
- */
-static int snd_pcm_hw_param_min(struct snd_pcm_substream *pcm, struct snd_pcm_hw_params *params,
- snd_pcm_hw_param_t var, unsigned int val,
- int *dir)
-{
- int changed = _snd_pcm_hw_param_min(params, var, val, dir ? *dir : 0);
- if (changed < 0)
- return changed;
- if (params->rmask) {
- int err = snd_pcm_hw_refine(pcm, params);
- if (err < 0)
- return err;
- }
- return snd_pcm_hw_param_value_min(params, var, dir);
-}
-
-static int _snd_pcm_hw_param_max(struct snd_pcm_hw_params *params,
- snd_pcm_hw_param_t var, unsigned int val,
- int dir)
-{
- int changed;
- int open = 0;
- if (dir) {
- if (dir < 0) {
- open = 1;
- } else if (dir > 0) {
- open = 1;
- val++;
- }
- }
- if (hw_is_mask(var)) {
- if (val == 0 && open) {
- snd_mask_none(hw_param_mask(params, var));
- changed = -EINVAL;
- } else
- changed = snd_mask_refine_max(hw_param_mask(params, var), val - !!open);
- } else if (hw_is_interval(var))
- changed = snd_interval_refine_max(hw_param_interval(params, var), val, open);
- else {
- assert(0);
- return -EINVAL;
- }
- if (changed) {
- params->cmask |= 1 << var;
- params->rmask |= 1 << var;
- }
- return changed;
-}
-
-/**
- * snd_pcm_hw_param_max
- * @pcm: PCM instance
- * @params: the hw_params instance
- * @var: parameter to retrieve
- * @val: maximal value
- * @dir: pointer to the direction (-1,0,1) or NULL
*
- * Inside configuration space defined by PARAMS remove from PAR all
- * values >= VAL + 1. Reduce configuration space accordingly.
- * Return new maximum or -EINVAL if the configuration space is empty
+ * Return: The maximum, or a negative error code on failure.
*/
-static int snd_pcm_hw_param_max(struct snd_pcm_substream *pcm, struct snd_pcm_hw_params *params,
- snd_pcm_hw_param_t var, unsigned int val,
- int *dir)
+int snd_pcm_hw_param_last(struct snd_pcm_substream *pcm,
+ struct snd_pcm_hw_params *params,
+ snd_pcm_hw_param_t var, int *dir)
{
- int changed = _snd_pcm_hw_param_max(params, var, val, dir ? *dir : 0);
- if (changed < 0)
- return changed;
- if (params->rmask) {
- int err = snd_pcm_hw_refine(pcm, params);
- if (err < 0)
- return err;
- }
- return snd_pcm_hw_param_value_max(params, var, dir);
-}
-
-int _snd_pcm_hw_param_set(struct snd_pcm_hw_params *params,
- snd_pcm_hw_param_t var, unsigned int val, int dir)
-{
- int changed;
- if (hw_is_mask(var)) {
- struct snd_mask *m = hw_param_mask(params, var);
- if (val == 0 && dir < 0) {
- changed = -EINVAL;
- snd_mask_none(m);
- } else {
- if (dir > 0)
- val++;
- else if (dir < 0)
- val--;
- changed = snd_mask_refine_set(hw_param_mask(params, var), val);
- }
- } else if (hw_is_interval(var)) {
- struct snd_interval *i = hw_param_interval(params, var);
- if (val == 0 && dir < 0) {
- changed = -EINVAL;
- snd_interval_none(i);
- } else if (dir == 0)
- changed = snd_interval_refine_set(i, val);
- else {
- struct snd_interval t;
- t.openmin = 1;
- t.openmax = 1;
- t.empty = 0;
- t.integer = 0;
- if (dir < 0) {
- t.min = val - 1;
- t.max = val;
- } else {
- t.min = val;
- t.max = val+1;
- }
- changed = snd_interval_refine(i, &t);
- }
- } else {
- assert(0);
- return -EINVAL;
- }
- if (changed) {
- params->cmask |= 1 << var;
- params->rmask |= 1 << var;
- }
- return changed;
-}
-
-/**
- * snd_pcm_hw_param_set
- * @pcm: PCM instance
- * @params: the hw_params instance
- * @var: parameter to retrieve
- * @val: value to set
- * @dir: pointer to the direction (-1,0,1) or NULL
- *
- * Inside configuration space defined by PARAMS remove from PAR all
- * values != VAL. Reduce configuration space accordingly.
- * Return VAL or -EINVAL if the configuration space is empty
- */
-int snd_pcm_hw_param_set(struct snd_pcm_substream *pcm, struct snd_pcm_hw_params *params,
- snd_pcm_hw_param_t var, unsigned int val, int dir)
-{
- int changed = _snd_pcm_hw_param_set(params, var, val, dir);
- if (changed < 0)
- return changed;
- if (params->rmask) {
- int err = snd_pcm_hw_refine(pcm, params);
- if (err < 0)
- return err;
- }
- return snd_pcm_hw_param_value(params, var, NULL);
-}
-
-static int _snd_pcm_hw_param_mask(struct snd_pcm_hw_params *params,
- snd_pcm_hw_param_t var, const struct snd_mask *val)
-{
- int changed;
- assert(hw_is_mask(var));
- changed = snd_mask_refine(hw_param_mask(params, var), val);
- if (changed) {
- params->cmask |= 1 << var;
- params->rmask |= 1 << var;
- }
- return changed;
-}
-
-/**
- * snd_pcm_hw_param_mask
- * @pcm: PCM instance
- * @params: the hw_params instance
- * @var: parameter to retrieve
- * @val: mask to apply
- *
- * Inside configuration space defined by PARAMS remove from PAR all values
- * not contained in MASK. Reduce configuration space accordingly.
- * This function can be called only for SNDRV_PCM_HW_PARAM_ACCESS,
- * SNDRV_PCM_HW_PARAM_FORMAT, SNDRV_PCM_HW_PARAM_SUBFORMAT.
- * Return 0 on success or -EINVAL
- * if the configuration space is empty
- */
-int snd_pcm_hw_param_mask(struct snd_pcm_substream *pcm, struct snd_pcm_hw_params *params,
- snd_pcm_hw_param_t var, const struct snd_mask *val)
-{
- int changed = _snd_pcm_hw_param_mask(params, var, val);
+ int changed = _snd_pcm_hw_param_last(params, var);
if (changed < 0)
return changed;
if (params->rmask) {
int err = snd_pcm_hw_refine(pcm, params);
- if (err < 0)
+ if (snd_BUG_ON(err < 0))
return err;
}
- return 0;
-}
-
-static int boundary_sub(int a, int adir,
- int b, int bdir,
- int *c, int *cdir)
-{
- adir = adir < 0 ? -1 : (adir > 0 ? 1 : 0);
- bdir = bdir < 0 ? -1 : (bdir > 0 ? 1 : 0);
- *c = a - b;
- *cdir = adir - bdir;
- if (*cdir == -2) {
- assert(*c > INT_MIN);
- (*c)--;
- } else if (*cdir == 2) {
- assert(*c < INT_MAX);
- (*c)++;
- }
- return 0;
-}
-
-static int boundary_lt(unsigned int a, int adir,
- unsigned int b, int bdir)
-{
- assert(a > 0 || adir >= 0);
- assert(b > 0 || bdir >= 0);
- if (adir < 0) {
- a--;
- adir = 1;
- } else if (adir > 0)
- adir = 1;
- if (bdir < 0) {
- b--;
- bdir = 1;
- } else if (bdir > 0)
- bdir = 1;
- return a < b || (a == b && adir < bdir);
-}
-
-/* Return 1 if min is nearer to best than max */
-static int boundary_nearer(int min, int mindir,
- int best, int bestdir,
- int max, int maxdir)
-{
- int dmin, dmindir;
- int dmax, dmaxdir;
- boundary_sub(best, bestdir, min, mindir, &dmin, &dmindir);
- boundary_sub(max, maxdir, best, bestdir, &dmax, &dmaxdir);
- return boundary_lt(dmin, dmindir, dmax, dmaxdir);
+ return snd_pcm_hw_param_value(params, var, dir);
}
-/**
- * snd_pcm_hw_param_near
- * @pcm: PCM instance
- * @params: the hw_params instance
- * @var: parameter to retrieve
- * @best: value to set
- * @dir: pointer to the direction (-1,0,1) or NULL
- *
- * Inside configuration space defined by PARAMS set PAR to the available value
- * nearest to VAL. Reduce configuration space accordingly.
- * This function cannot be called for SNDRV_PCM_HW_PARAM_ACCESS,
- * SNDRV_PCM_HW_PARAM_FORMAT, SNDRV_PCM_HW_PARAM_SUBFORMAT.
- * Return the value found.
- */
-int snd_pcm_hw_param_near(struct snd_pcm_substream *pcm, struct snd_pcm_hw_params *params,
- snd_pcm_hw_param_t var, unsigned int best, int *dir)
-{
- struct snd_pcm_hw_params *save = NULL;
- int v;
- unsigned int saved_min;
- int last = 0;
- int min, max;
- int mindir, maxdir;
- int valdir = dir ? *dir : 0;
- /* FIXME */
- if (best > INT_MAX)
- best = INT_MAX;
- min = max = best;
- mindir = maxdir = valdir;
- if (maxdir > 0)
- maxdir = 0;
- else if (maxdir == 0)
- maxdir = -1;
- else {
- maxdir = 1;
- max--;
- }
- save = kmalloc(sizeof(*save), GFP_KERNEL);
- if (save == NULL)
- return -ENOMEM;
- *save = *params;
- saved_min = min;
- min = snd_pcm_hw_param_min(pcm, params, var, min, &mindir);
- if (min >= 0) {
- struct snd_pcm_hw_params *params1;
- if (max < 0)
- goto _end;
- if ((unsigned int)min == saved_min && mindir == valdir)
- goto _end;
- params1 = kmalloc(sizeof(*params1), GFP_KERNEL);
- if (params1 == NULL) {
- kfree(save);
- return -ENOMEM;
- }
- *params1 = *save;
- max = snd_pcm_hw_param_max(pcm, params1, var, max, &maxdir);
- if (max < 0) {
- kfree(params1);
- goto _end;
- }
- if (boundary_nearer(max, maxdir, best, valdir, min, mindir)) {
- *params = *params1;
- last = 1;
- }
- kfree(params1);
- } else {
- *params = *save;
- max = snd_pcm_hw_param_max(pcm, params, var, max, &maxdir);
- assert(max >= 0);
- last = 1;
- }
- _end:
- kfree(save);
- if (last)
- v = snd_pcm_hw_param_last(pcm, params, var, dir);
- else
- v = snd_pcm_hw_param_first(pcm, params, var, dir);
- assert(v >= 0);
- return v;
-}
+EXPORT_SYMBOL(snd_pcm_hw_param_last);
/**
- * snd_pcm_hw_param_choose
+ * snd_pcm_hw_param_choose - choose a configuration defined by @params
* @pcm: PCM instance
* @params: the hw_params instance
*
- * Choose one configuration from configuration space defined by PARAMS
+ * Choose one configuration from configuration space defined by @params.
* The configuration chosen is that obtained fixing in this order:
* first access, first format, first subformat, min channels,
* min rate, min period time, max buffer size, min tick time
+ *
+ * Return: Zero if successful, or a negative error code on failure.
*/
-int snd_pcm_hw_params_choose(struct snd_pcm_substream *pcm, struct snd_pcm_hw_params *params)
-{
- int err;
-
- err = snd_pcm_hw_param_first(pcm, params, SNDRV_PCM_HW_PARAM_ACCESS, NULL);
- assert(err >= 0);
-
- err = snd_pcm_hw_param_first(pcm, params, SNDRV_PCM_HW_PARAM_FORMAT, NULL);
- assert(err >= 0);
-
- err = snd_pcm_hw_param_first(pcm, params, SNDRV_PCM_HW_PARAM_SUBFORMAT, NULL);
- assert(err >= 0);
-
- err = snd_pcm_hw_param_first(pcm, params, SNDRV_PCM_HW_PARAM_CHANNELS, NULL);
- assert(err >= 0);
-
- err = snd_pcm_hw_param_first(pcm, params, SNDRV_PCM_HW_PARAM_RATE, NULL);
- assert(err >= 0);
-
- err = snd_pcm_hw_param_first(pcm, params, SNDRV_PCM_HW_PARAM_PERIOD_TIME, NULL);
- assert(err >= 0);
-
- err = snd_pcm_hw_param_last(pcm, params, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, NULL);
- assert(err >= 0);
-
- err = snd_pcm_hw_param_first(pcm, params, SNDRV_PCM_HW_PARAM_TICK_TIME, NULL);
- assert(err >= 0);
+int snd_pcm_hw_params_choose(struct snd_pcm_substream *pcm,
+ struct snd_pcm_hw_params *params)
+{
+ static int vars[] = {
+ SNDRV_PCM_HW_PARAM_ACCESS,
+ SNDRV_PCM_HW_PARAM_FORMAT,
+ SNDRV_PCM_HW_PARAM_SUBFORMAT,
+ SNDRV_PCM_HW_PARAM_CHANNELS,
+ SNDRV_PCM_HW_PARAM_RATE,
+ SNDRV_PCM_HW_PARAM_PERIOD_TIME,
+ SNDRV_PCM_HW_PARAM_BUFFER_SIZE,
+ SNDRV_PCM_HW_PARAM_TICK_TIME,
+ -1
+ };
+ int err, *v;
+ for (v = vars; *v != -1; v++) {
+ if (*v != SNDRV_PCM_HW_PARAM_BUFFER_SIZE)
+ err = snd_pcm_hw_param_first(pcm, params, *v, NULL);
+ else
+ err = snd_pcm_hw_param_last(pcm, params, *v, NULL);
+ if (snd_BUG_ON(err < 0))
+ return err;
+ }
return 0;
}
-#undef assert
-
static int snd_pcm_lib_ioctl_reset(struct snd_pcm_substream *substream,
void *arg)
{
@@ -1901,8 +1734,10 @@ static int snd_pcm_lib_ioctl_reset(struct snd_pcm_substream *substream,
if (snd_pcm_running(substream) &&
snd_pcm_update_hw_ptr(substream) >= 0)
runtime->status->hw_ptr %= runtime->buffer_size;
- else
+ else {
runtime->status->hw_ptr = 0;
+ runtime->hw_ptr_wrap = 0;
+ }
snd_pcm_stream_unlock_irqrestore(substream, flags);
return 0;
}
@@ -1942,6 +1777,23 @@ static int snd_pcm_lib_ioctl_channel_info(struct snd_pcm_substream *substream,
return 0;
}
+static int snd_pcm_lib_ioctl_fifo_size(struct snd_pcm_substream *substream,
+ void *arg)
+{
+ struct snd_pcm_hw_params *params = arg;
+ snd_pcm_format_t format;
+ int channels, width;
+
+ params->fifo_size = substream->runtime->hw.fifo_size;
+ if (!(substream->runtime->hw.info & SNDRV_PCM_INFO_FIFO_IN_FRAMES)) {
+ format = params_format(params);
+ channels = params_channels(params);
+ width = snd_pcm_format_physical_width(format);
+ params->fifo_size /= width * channels;
+ }
+ return 0;
+}
+
/**
* snd_pcm_lib_ioctl - a generic PCM ioctl callback
* @substream: the pcm substream instance
@@ -1951,7 +1803,7 @@ static int snd_pcm_lib_ioctl_channel_info(struct snd_pcm_substream *substream,
* Processes the generic ioctl commands for PCM.
* Can be passed as the ioctl callback for PCM ops.
*
- * Returns zero if successful, or a negative error code on failure.
+ * Return: Zero if successful, or a negative error code on failure.
*/
int snd_pcm_lib_ioctl(struct snd_pcm_substream *substream,
unsigned int cmd, void *arg)
@@ -1963,104 +1815,13 @@ int snd_pcm_lib_ioctl(struct snd_pcm_substream *substream,
return snd_pcm_lib_ioctl_reset(substream, arg);
case SNDRV_PCM_IOCTL1_CHANNEL_INFO:
return snd_pcm_lib_ioctl_channel_info(substream, arg);
+ case SNDRV_PCM_IOCTL1_FIFO_SIZE:
+ return snd_pcm_lib_ioctl_fifo_size(substream, arg);
}
return -ENXIO;
}
-/*
- * Conditions
- */
-
-static void snd_pcm_system_tick_set(struct snd_pcm_substream *substream,
- unsigned long ticks)
-{
- struct snd_pcm_runtime *runtime = substream->runtime;
- if (ticks == 0)
- del_timer(&runtime->tick_timer);
- else {
- ticks += (1000000 / HZ) - 1;
- ticks /= (1000000 / HZ);
- mod_timer(&runtime->tick_timer, jiffies + ticks);
- }
-}
-
-/* Temporary alias */
-void snd_pcm_tick_set(struct snd_pcm_substream *substream, unsigned long ticks)
-{
- snd_pcm_system_tick_set(substream, ticks);
-}
-
-void snd_pcm_tick_prepare(struct snd_pcm_substream *substream)
-{
- struct snd_pcm_runtime *runtime = substream->runtime;
- snd_pcm_uframes_t frames = ULONG_MAX;
- snd_pcm_uframes_t avail, dist;
- unsigned int ticks;
- u_int64_t n;
- u_int32_t r;
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
- if (runtime->silence_size >= runtime->boundary) {
- frames = 1;
- } else if (runtime->silence_size > 0 &&
- runtime->silence_filled < runtime->buffer_size) {
- snd_pcm_sframes_t noise_dist;
- noise_dist = snd_pcm_playback_hw_avail(runtime) + runtime->silence_filled;
- if (noise_dist > (snd_pcm_sframes_t)runtime->silence_threshold)
- frames = noise_dist - runtime->silence_threshold;
- }
- avail = snd_pcm_playback_avail(runtime);
- } else {
- avail = snd_pcm_capture_avail(runtime);
- }
- if (avail < runtime->control->avail_min) {
- snd_pcm_sframes_t n = runtime->control->avail_min - avail;
- if (n > 0 && frames > (snd_pcm_uframes_t)n)
- frames = n;
- }
- if (avail < runtime->buffer_size) {
- snd_pcm_sframes_t n = runtime->buffer_size - avail;
- if (n > 0 && frames > (snd_pcm_uframes_t)n)
- frames = n;
- }
- if (frames == ULONG_MAX) {
- snd_pcm_tick_set(substream, 0);
- return;
- }
- dist = runtime->status->hw_ptr - runtime->hw_ptr_base;
- /* Distance to next interrupt */
- dist = runtime->period_size - dist % runtime->period_size;
- if (dist <= frames) {
- snd_pcm_tick_set(substream, 0);
- return;
- }
- /* the base time is us */
- n = frames;
- n *= 1000000;
- div64_32(&n, runtime->tick_time * runtime->rate, &r);
- ticks = n + (r > 0 ? 1 : 0);
- if (ticks < runtime->sleep_min)
- ticks = runtime->sleep_min;
- snd_pcm_tick_set(substream, (unsigned long) ticks);
-}
-
-void snd_pcm_tick_elapsed(struct snd_pcm_substream *substream)
-{
- struct snd_pcm_runtime *runtime;
- unsigned long flags;
-
- snd_assert(substream != NULL, return);
- runtime = substream->runtime;
- snd_assert(runtime != NULL, return);
-
- snd_pcm_stream_lock_irqsave(substream, flags);
- if (!snd_pcm_running(substream) ||
- snd_pcm_update_hw_ptr(substream) < 0)
- goto _end;
- if (runtime->sleep_min)
- snd_pcm_tick_prepare(substream);
- _end:
- snd_pcm_stream_unlock_irqrestore(substream, flags);
-}
+EXPORT_SYMBOL(snd_pcm_lib_ioctl);
/**
* snd_pcm_period_elapsed - update the pcm status for the next period
@@ -2068,7 +1829,7 @@ void snd_pcm_tick_elapsed(struct snd_pcm_substream *substream)
*
* This function is called from the interrupt handler when the
* PCM has processed the period size. It will update the current
- * pointer, set up the tick, wake up sleepers, etc.
+ * pointer, wake up sleepers, etc.
*
* Even if more than one periods have elapsed since the last call, you
* have to call this only once.
@@ -2078,22 +1839,20 @@ void snd_pcm_period_elapsed(struct snd_pcm_substream *substream)
struct snd_pcm_runtime *runtime;
unsigned long flags;
- snd_assert(substream != NULL, return);
+ if (PCM_RUNTIME_CHECK(substream))
+ return;
runtime = substream->runtime;
- snd_assert(runtime != NULL, return);
if (runtime->transfer_ack_begin)
runtime->transfer_ack_begin(substream);
snd_pcm_stream_lock_irqsave(substream, flags);
if (!snd_pcm_running(substream) ||
- snd_pcm_update_hw_ptr_interrupt(substream) < 0)
+ snd_pcm_update_hw_ptr0(substream, 1) < 0)
goto _end;
if (substream->timer_running)
snd_timer_interrupt(substream->timer, 1);
- if (runtime->sleep_min)
- snd_pcm_tick_prepare(substream);
_end:
snd_pcm_stream_unlock_irqrestore(substream, flags);
if (runtime->transfer_ack_end)
@@ -2101,6 +1860,100 @@ void snd_pcm_period_elapsed(struct snd_pcm_substream *substream)
kill_fasync(&runtime->fasync, SIGIO, POLL_IN);
}
+EXPORT_SYMBOL(snd_pcm_period_elapsed);
+
+/*
+ * Wait until avail_min data becomes available
+ * Returns a negative error code if any error occurs during operation.
+ * The available space is stored on availp. When err = 0 and avail = 0
+ * on the capture stream, it indicates the stream is in DRAINING state.
+ */
+static int wait_for_avail(struct snd_pcm_substream *substream,
+ snd_pcm_uframes_t *availp)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ int is_playback = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
+ wait_queue_t wait;
+ int err = 0;
+ snd_pcm_uframes_t avail = 0;
+ long wait_time, tout;
+
+ init_waitqueue_entry(&wait, current);
+ set_current_state(TASK_INTERRUPTIBLE);
+ add_wait_queue(&runtime->tsleep, &wait);
+
+ if (runtime->no_period_wakeup)
+ wait_time = MAX_SCHEDULE_TIMEOUT;
+ else {
+ wait_time = 10;
+ if (runtime->rate) {
+ long t = runtime->period_size * 2 / runtime->rate;
+ wait_time = max(t, wait_time);
+ }
+ wait_time = msecs_to_jiffies(wait_time * 1000);
+ }
+
+ for (;;) {
+ if (signal_pending(current)) {
+ err = -ERESTARTSYS;
+ break;
+ }
+
+ /*
+ * We need to check if space became available already
+ * (and thus the wakeup happened already) first to close
+ * the race of space already having become available.
+ * This check must happen after been added to the waitqueue
+ * and having current state be INTERRUPTIBLE.
+ */
+ if (is_playback)
+ avail = snd_pcm_playback_avail(runtime);
+ else
+ avail = snd_pcm_capture_avail(runtime);
+ if (avail >= runtime->twake)
+ break;
+ snd_pcm_stream_unlock_irq(substream);
+
+ tout = schedule_timeout(wait_time);
+
+ snd_pcm_stream_lock_irq(substream);
+ set_current_state(TASK_INTERRUPTIBLE);
+ switch (runtime->status->state) {
+ case SNDRV_PCM_STATE_SUSPENDED:
+ err = -ESTRPIPE;
+ goto _endloop;
+ case SNDRV_PCM_STATE_XRUN:
+ err = -EPIPE;
+ goto _endloop;
+ case SNDRV_PCM_STATE_DRAINING:
+ if (is_playback)
+ err = -EPIPE;
+ else
+ avail = 0; /* indicate draining */
+ goto _endloop;
+ case SNDRV_PCM_STATE_OPEN:
+ case SNDRV_PCM_STATE_SETUP:
+ case SNDRV_PCM_STATE_DISCONNECTED:
+ err = -EBADFD;
+ goto _endloop;
+ case SNDRV_PCM_STATE_PAUSED:
+ continue;
+ }
+ if (!tout) {
+ pcm_dbg(substream->pcm,
+ "%s write error (DMA or IRQ trouble?)\n",
+ is_playback ? "playback" : "capture");
+ err = -EIO;
+ break;
+ }
+ }
+ _endloop:
+ set_current_state(TASK_RUNNING);
+ remove_wait_queue(&runtime->tsleep, &wait);
+ *availp = avail;
+ return err;
+}
+
static int snd_pcm_lib_write_transfer(struct snd_pcm_substream *substream,
unsigned int hwoff,
unsigned long data, unsigned int off,
@@ -2114,7 +1967,6 @@ static int snd_pcm_lib_write_transfer(struct snd_pcm_substream *substream,
return err;
} else {
char *hwbuf = runtime->dma_area + frames_to_bytes(runtime, hwoff);
- snd_assert(runtime->dma_area, return -EFAULT);
if (copy_from_user(hwbuf, buf, frames_to_bytes(runtime, frames)))
return -EFAULT;
}
@@ -2134,12 +1986,11 @@ static snd_pcm_sframes_t snd_pcm_lib_write1(struct snd_pcm_substream *substream,
struct snd_pcm_runtime *runtime = substream->runtime;
snd_pcm_uframes_t xfer = 0;
snd_pcm_uframes_t offset = 0;
+ snd_pcm_uframes_t avail;
int err = 0;
if (size == 0)
return 0;
- if (size > runtime->xfer_align)
- size -= size % runtime->xfer_align;
snd_pcm_stream_lock_irq(substream);
switch (runtime->status->state) {
@@ -2158,99 +2009,40 @@ static snd_pcm_sframes_t snd_pcm_lib_write1(struct snd_pcm_substream *substream,
goto _end_unlock;
}
+ runtime->twake = runtime->control->avail_min ? : 1;
+ if (runtime->status->state == SNDRV_PCM_STATE_RUNNING)
+ snd_pcm_update_hw_ptr(substream);
+ avail = snd_pcm_playback_avail(runtime);
while (size > 0) {
snd_pcm_uframes_t frames, appl_ptr, appl_ofs;
- snd_pcm_uframes_t avail;
snd_pcm_uframes_t cont;
- if (runtime->sleep_min == 0 && runtime->status->state == SNDRV_PCM_STATE_RUNNING)
- snd_pcm_update_hw_ptr(substream);
- avail = snd_pcm_playback_avail(runtime);
- if (((avail < runtime->control->avail_min && size > avail) ||
- (size >= runtime->xfer_align && avail < runtime->xfer_align))) {
- wait_queue_t wait;
- enum { READY, SIGNALED, ERROR, SUSPENDED, EXPIRED, DROPPED } state;
- long tout;
-
+ if (!avail) {
if (nonblock) {
err = -EAGAIN;
goto _end_unlock;
}
-
- init_waitqueue_entry(&wait, current);
- add_wait_queue(&runtime->sleep, &wait);
- while (1) {
- if (signal_pending(current)) {
- state = SIGNALED;
- break;
- }
- set_current_state(TASK_INTERRUPTIBLE);
- snd_pcm_stream_unlock_irq(substream);
- tout = schedule_timeout(10 * HZ);
- snd_pcm_stream_lock_irq(substream);
- if (tout == 0) {
- if (runtime->status->state != SNDRV_PCM_STATE_PREPARED &&
- runtime->status->state != SNDRV_PCM_STATE_PAUSED) {
- state = runtime->status->state == SNDRV_PCM_STATE_SUSPENDED ? SUSPENDED : EXPIRED;
- break;
- }
- }
- switch (runtime->status->state) {
- case SNDRV_PCM_STATE_XRUN:
- case SNDRV_PCM_STATE_DRAINING:
- state = ERROR;
- goto _end_loop;
- case SNDRV_PCM_STATE_SUSPENDED:
- state = SUSPENDED;
- goto _end_loop;
- case SNDRV_PCM_STATE_SETUP:
- state = DROPPED;
- goto _end_loop;
- default:
- break;
- }
- avail = snd_pcm_playback_avail(runtime);
- if (avail >= runtime->control->avail_min) {
- state = READY;
- break;
- }
- }
- _end_loop:
- remove_wait_queue(&runtime->sleep, &wait);
-
- switch (state) {
- case ERROR:
- err = -EPIPE;
- goto _end_unlock;
- case SUSPENDED:
- err = -ESTRPIPE;
- goto _end_unlock;
- case SIGNALED:
- err = -ERESTARTSYS;
- goto _end_unlock;
- case EXPIRED:
- snd_printd("playback write error (DMA or IRQ trouble?)\n");
- err = -EIO;
- goto _end_unlock;
- case DROPPED:
- err = -EBADFD;
+ runtime->twake = min_t(snd_pcm_uframes_t, size,
+ runtime->control->avail_min ? : 1);
+ err = wait_for_avail(substream, &avail);
+ if (err < 0)
goto _end_unlock;
- default:
- break;
- }
}
- if (avail > runtime->xfer_align)
- avail -= avail % runtime->xfer_align;
frames = size > avail ? avail : size;
cont = runtime->buffer_size - runtime->control->appl_ptr % runtime->buffer_size;
if (frames > cont)
frames = cont;
- snd_assert(frames != 0, snd_pcm_stream_unlock_irq(substream); return -EINVAL);
+ if (snd_BUG_ON(!frames)) {
+ runtime->twake = 0;
+ snd_pcm_stream_unlock_irq(substream);
+ return -EINVAL;
+ }
appl_ptr = runtime->control->appl_ptr;
appl_ofs = appl_ptr % runtime->buffer_size;
snd_pcm_stream_unlock_irq(substream);
- if ((err = transfer(substream, appl_ofs, data, offset, frames)) < 0)
- goto _end;
+ err = transfer(substream, appl_ofs, data, offset, frames);
snd_pcm_stream_lock_irq(substream);
+ if (err < 0)
+ goto _end_unlock;
switch (runtime->status->state) {
case SNDRV_PCM_STATE_XRUN:
err = -EPIPE;
@@ -2271,47 +2063,47 @@ static snd_pcm_sframes_t snd_pcm_lib_write1(struct snd_pcm_substream *substream,
offset += frames;
size -= frames;
xfer += frames;
+ avail -= frames;
if (runtime->status->state == SNDRV_PCM_STATE_PREPARED &&
snd_pcm_playback_hw_avail(runtime) >= (snd_pcm_sframes_t)runtime->start_threshold) {
err = snd_pcm_start(substream);
if (err < 0)
goto _end_unlock;
}
- if (runtime->sleep_min &&
- runtime->status->state == SNDRV_PCM_STATE_RUNNING)
- snd_pcm_tick_prepare(substream);
}
_end_unlock:
+ runtime->twake = 0;
+ if (xfer > 0 && err >= 0)
+ snd_pcm_update_state(substream, runtime);
snd_pcm_stream_unlock_irq(substream);
- _end:
return xfer > 0 ? (snd_pcm_sframes_t)xfer : err;
}
-snd_pcm_sframes_t snd_pcm_lib_write(struct snd_pcm_substream *substream, const void __user *buf, snd_pcm_uframes_t size)
+/* sanity-check for read/write methods */
+static int pcm_sanity_check(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime;
- int nonblock;
-
- snd_assert(substream != NULL, return -ENXIO);
+ if (PCM_RUNTIME_CHECK(substream))
+ return -ENXIO;
runtime = substream->runtime;
- snd_assert(runtime != NULL, return -ENXIO);
- snd_assert(substream->ops->copy != NULL || runtime->dma_area != NULL, return -EINVAL);
+ if (snd_BUG_ON(!substream->ops->copy && !runtime->dma_area))
+ return -EINVAL;
if (runtime->status->state == SNDRV_PCM_STATE_OPEN)
return -EBADFD;
+ return 0;
+}
- snd_assert(substream->ffile != NULL, return -ENXIO);
- nonblock = !!(substream->ffile->f_flags & O_NONBLOCK);
-#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE)
- if (substream->oss.oss) {
- struct snd_pcm_oss_setup *setup = substream->oss.setup;
- if (setup != NULL) {
- if (setup->nonblock)
- nonblock = 1;
- else if (setup->block)
- nonblock = 0;
- }
- }
-#endif
+snd_pcm_sframes_t snd_pcm_lib_write(struct snd_pcm_substream *substream, const void __user *buf, snd_pcm_uframes_t size)
+{
+ struct snd_pcm_runtime *runtime;
+ int nonblock;
+ int err;
+
+ err = pcm_sanity_check(substream);
+ if (err < 0)
+ return err;
+ runtime = substream->runtime;
+ nonblock = !!(substream->f_flags & O_NONBLOCK);
if (runtime->access != SNDRV_PCM_ACCESS_RW_INTERLEAVED &&
runtime->channels > 1)
@@ -2320,6 +2112,8 @@ snd_pcm_sframes_t snd_pcm_lib_write(struct snd_pcm_substream *substream, const v
snd_pcm_lib_write_transfer);
}
+EXPORT_SYMBOL(snd_pcm_lib_write);
+
static int snd_pcm_lib_writev_transfer(struct snd_pcm_substream *substream,
unsigned int hwoff,
unsigned long data, unsigned int off,
@@ -2331,7 +2125,8 @@ static int snd_pcm_lib_writev_transfer(struct snd_pcm_substream *substream,
int channels = runtime->channels;
int c;
if (substream->ops->copy) {
- snd_assert(substream->ops->silence != NULL, return -EINVAL);
+ if (snd_BUG_ON(!substream->ops->silence))
+ return -EINVAL;
for (c = 0; c < channels; ++c, ++bufs) {
if (*bufs == NULL) {
if ((err = substream->ops->silence(substream, c, hwoff, frames)) < 0)
@@ -2345,7 +2140,6 @@ static int snd_pcm_lib_writev_transfer(struct snd_pcm_substream *substream,
} else {
/* default transfer behaviour */
size_t dma_csize = runtime->dma_bytes / channels;
- snd_assert(runtime->dma_area, return -EFAULT);
for (c = 0; c < channels; ++c, ++bufs) {
char *hwbuf = runtime->dma_area + (c * dma_csize) + samples_to_bytes(runtime, hwoff);
if (*bufs == NULL) {
@@ -2366,27 +2160,13 @@ snd_pcm_sframes_t snd_pcm_lib_writev(struct snd_pcm_substream *substream,
{
struct snd_pcm_runtime *runtime;
int nonblock;
+ int err;
- snd_assert(substream != NULL, return -ENXIO);
+ err = pcm_sanity_check(substream);
+ if (err < 0)
+ return err;
runtime = substream->runtime;
- snd_assert(runtime != NULL, return -ENXIO);
- snd_assert(substream->ops->copy != NULL || runtime->dma_area != NULL, return -EINVAL);
- if (runtime->status->state == SNDRV_PCM_STATE_OPEN)
- return -EBADFD;
-
- snd_assert(substream->ffile != NULL, return -ENXIO);
- nonblock = !!(substream->ffile->f_flags & O_NONBLOCK);
-#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE)
- if (substream->oss.oss) {
- struct snd_pcm_oss_setup *setup = substream->oss.setup;
- if (setup != NULL) {
- if (setup->nonblock)
- nonblock = 1;
- else if (setup->block)
- nonblock = 0;
- }
- }
-#endif
+ nonblock = !!(substream->f_flags & O_NONBLOCK);
if (runtime->access != SNDRV_PCM_ACCESS_RW_NONINTERLEAVED)
return -EINVAL;
@@ -2394,6 +2174,8 @@ snd_pcm_sframes_t snd_pcm_lib_writev(struct snd_pcm_substream *substream,
nonblock, snd_pcm_lib_writev_transfer);
}
+EXPORT_SYMBOL(snd_pcm_lib_writev);
+
static int snd_pcm_lib_read_transfer(struct snd_pcm_substream *substream,
unsigned int hwoff,
unsigned long data, unsigned int off,
@@ -2407,7 +2189,6 @@ static int snd_pcm_lib_read_transfer(struct snd_pcm_substream *substream,
return err;
} else {
char *hwbuf = runtime->dma_area + frames_to_bytes(runtime, hwoff);
- snd_assert(runtime->dma_area, return -EFAULT);
if (copy_to_user(buf, hwbuf, frames_to_bytes(runtime, frames)))
return -EFAULT;
}
@@ -2423,12 +2204,11 @@ static snd_pcm_sframes_t snd_pcm_lib_read1(struct snd_pcm_substream *substream,
struct snd_pcm_runtime *runtime = substream->runtime;
snd_pcm_uframes_t xfer = 0;
snd_pcm_uframes_t offset = 0;
+ snd_pcm_uframes_t avail;
int err = 0;
if (size == 0)
return 0;
- if (size > runtime->xfer_align)
- size -= size % runtime->xfer_align;
snd_pcm_stream_lock_irq(substream);
switch (runtime->status->state) {
@@ -2454,106 +2234,47 @@ static snd_pcm_sframes_t snd_pcm_lib_read1(struct snd_pcm_substream *substream,
goto _end_unlock;
}
+ runtime->twake = runtime->control->avail_min ? : 1;
+ if (runtime->status->state == SNDRV_PCM_STATE_RUNNING)
+ snd_pcm_update_hw_ptr(substream);
+ avail = snd_pcm_capture_avail(runtime);
while (size > 0) {
snd_pcm_uframes_t frames, appl_ptr, appl_ofs;
- snd_pcm_uframes_t avail;
snd_pcm_uframes_t cont;
- if (runtime->sleep_min == 0 && runtime->status->state == SNDRV_PCM_STATE_RUNNING)
- snd_pcm_update_hw_ptr(substream);
- __draining:
- avail = snd_pcm_capture_avail(runtime);
- if (runtime->status->state == SNDRV_PCM_STATE_DRAINING) {
- if (avail < runtime->xfer_align) {
- err = -EPIPE;
+ if (!avail) {
+ if (runtime->status->state ==
+ SNDRV_PCM_STATE_DRAINING) {
+ snd_pcm_stop(substream, SNDRV_PCM_STATE_SETUP);
goto _end_unlock;
}
- } else if ((avail < runtime->control->avail_min && size > avail) ||
- (size >= runtime->xfer_align && avail < runtime->xfer_align)) {
- wait_queue_t wait;
- enum { READY, SIGNALED, ERROR, SUSPENDED, EXPIRED, DROPPED } state;
- long tout;
-
if (nonblock) {
err = -EAGAIN;
goto _end_unlock;
}
-
- init_waitqueue_entry(&wait, current);
- add_wait_queue(&runtime->sleep, &wait);
- while (1) {
- if (signal_pending(current)) {
- state = SIGNALED;
- break;
- }
- set_current_state(TASK_INTERRUPTIBLE);
- snd_pcm_stream_unlock_irq(substream);
- tout = schedule_timeout(10 * HZ);
- snd_pcm_stream_lock_irq(substream);
- if (tout == 0) {
- if (runtime->status->state != SNDRV_PCM_STATE_PREPARED &&
- runtime->status->state != SNDRV_PCM_STATE_PAUSED) {
- state = runtime->status->state == SNDRV_PCM_STATE_SUSPENDED ? SUSPENDED : EXPIRED;
- break;
- }
- }
- switch (runtime->status->state) {
- case SNDRV_PCM_STATE_XRUN:
- state = ERROR;
- goto _end_loop;
- case SNDRV_PCM_STATE_SUSPENDED:
- state = SUSPENDED;
- goto _end_loop;
- case SNDRV_PCM_STATE_DRAINING:
- goto __draining;
- case SNDRV_PCM_STATE_SETUP:
- state = DROPPED;
- goto _end_loop;
- default:
- break;
- }
- avail = snd_pcm_capture_avail(runtime);
- if (avail >= runtime->control->avail_min) {
- state = READY;
- break;
- }
- }
- _end_loop:
- remove_wait_queue(&runtime->sleep, &wait);
-
- switch (state) {
- case ERROR:
- err = -EPIPE;
- goto _end_unlock;
- case SUSPENDED:
- err = -ESTRPIPE;
- goto _end_unlock;
- case SIGNALED:
- err = -ERESTARTSYS;
- goto _end_unlock;
- case EXPIRED:
- snd_printd("capture read error (DMA or IRQ trouble?)\n");
- err = -EIO;
- goto _end_unlock;
- case DROPPED:
- err = -EBADFD;
+ runtime->twake = min_t(snd_pcm_uframes_t, size,
+ runtime->control->avail_min ? : 1);
+ err = wait_for_avail(substream, &avail);
+ if (err < 0)
goto _end_unlock;
- default:
- break;
- }
+ if (!avail)
+ continue; /* draining */
}
- if (avail > runtime->xfer_align)
- avail -= avail % runtime->xfer_align;
frames = size > avail ? avail : size;
cont = runtime->buffer_size - runtime->control->appl_ptr % runtime->buffer_size;
if (frames > cont)
frames = cont;
- snd_assert(frames != 0, snd_pcm_stream_unlock_irq(substream); return -EINVAL);
+ if (snd_BUG_ON(!frames)) {
+ runtime->twake = 0;
+ snd_pcm_stream_unlock_irq(substream);
+ return -EINVAL;
+ }
appl_ptr = runtime->control->appl_ptr;
appl_ofs = appl_ptr % runtime->buffer_size;
snd_pcm_stream_unlock_irq(substream);
- if ((err = transfer(substream, appl_ofs, data, offset, frames)) < 0)
- goto _end;
+ err = transfer(substream, appl_ofs, data, offset, frames);
snd_pcm_stream_lock_irq(substream);
+ if (err < 0)
+ goto _end_unlock;
switch (runtime->status->state) {
case SNDRV_PCM_STATE_XRUN:
err = -EPIPE;
@@ -2574,13 +2295,13 @@ static snd_pcm_sframes_t snd_pcm_lib_read1(struct snd_pcm_substream *substream,
offset += frames;
size -= frames;
xfer += frames;
- if (runtime->sleep_min &&
- runtime->status->state == SNDRV_PCM_STATE_RUNNING)
- snd_pcm_tick_prepare(substream);
+ avail -= frames;
}
_end_unlock:
+ runtime->twake = 0;
+ if (xfer > 0 && err >= 0)
+ snd_pcm_update_state(substream, runtime);
snd_pcm_stream_unlock_irq(substream);
- _end:
return xfer > 0 ? (snd_pcm_sframes_t)xfer : err;
}
@@ -2588,32 +2309,20 @@ snd_pcm_sframes_t snd_pcm_lib_read(struct snd_pcm_substream *substream, void __u
{
struct snd_pcm_runtime *runtime;
int nonblock;
+ int err;
- snd_assert(substream != NULL, return -ENXIO);
+ err = pcm_sanity_check(substream);
+ if (err < 0)
+ return err;
runtime = substream->runtime;
- snd_assert(runtime != NULL, return -ENXIO);
- snd_assert(substream->ops->copy != NULL || runtime->dma_area != NULL, return -EINVAL);
- if (runtime->status->state == SNDRV_PCM_STATE_OPEN)
- return -EBADFD;
-
- snd_assert(substream->ffile != NULL, return -ENXIO);
- nonblock = !!(substream->ffile->f_flags & O_NONBLOCK);
-#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE)
- if (substream->oss.oss) {
- struct snd_pcm_oss_setup *setup = substream->oss.setup;
- if (setup != NULL) {
- if (setup->nonblock)
- nonblock = 1;
- else if (setup->block)
- nonblock = 0;
- }
- }
-#endif
+ nonblock = !!(substream->f_flags & O_NONBLOCK);
if (runtime->access != SNDRV_PCM_ACCESS_RW_INTERLEAVED)
return -EINVAL;
return snd_pcm_lib_read1(substream, (unsigned long)buf, size, nonblock, snd_pcm_lib_read_transfer);
}
+EXPORT_SYMBOL(snd_pcm_lib_read);
+
static int snd_pcm_lib_readv_transfer(struct snd_pcm_substream *substream,
unsigned int hwoff,
unsigned long data, unsigned int off,
@@ -2635,7 +2344,6 @@ static int snd_pcm_lib_readv_transfer(struct snd_pcm_substream *substream,
}
} else {
snd_pcm_uframes_t dma_csize = runtime->dma_bytes / channels;
- snd_assert(runtime->dma_area, return -EFAULT);
for (c = 0; c < channels; ++c, ++bufs) {
char *hwbuf;
char __user *buf;
@@ -2657,79 +2365,232 @@ snd_pcm_sframes_t snd_pcm_lib_readv(struct snd_pcm_substream *substream,
{
struct snd_pcm_runtime *runtime;
int nonblock;
+ int err;
- snd_assert(substream != NULL, return -ENXIO);
+ err = pcm_sanity_check(substream);
+ if (err < 0)
+ return err;
runtime = substream->runtime;
- snd_assert(runtime != NULL, return -ENXIO);
- snd_assert(substream->ops->copy != NULL || runtime->dma_area != NULL, return -EINVAL);
if (runtime->status->state == SNDRV_PCM_STATE_OPEN)
return -EBADFD;
- snd_assert(substream->ffile != NULL, return -ENXIO);
- nonblock = !!(substream->ffile->f_flags & O_NONBLOCK);
-#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE)
- if (substream->oss.oss) {
- struct snd_pcm_oss_setup *setup = substream->oss.setup;
- if (setup != NULL) {
- if (setup->nonblock)
- nonblock = 1;
- else if (setup->block)
- nonblock = 0;
- }
- }
-#endif
-
+ nonblock = !!(substream->f_flags & O_NONBLOCK);
if (runtime->access != SNDRV_PCM_ACCESS_RW_NONINTERLEAVED)
return -EINVAL;
return snd_pcm_lib_read1(substream, (unsigned long)bufs, frames, nonblock, snd_pcm_lib_readv_transfer);
}
+EXPORT_SYMBOL(snd_pcm_lib_readv);
+
/*
- * Exported symbols
+ * standard channel mapping helpers
*/
-EXPORT_SYMBOL(snd_interval_refine);
-EXPORT_SYMBOL(snd_interval_list);
-EXPORT_SYMBOL(snd_interval_ratnum);
-EXPORT_SYMBOL(_snd_pcm_hw_params_any);
-EXPORT_SYMBOL(_snd_pcm_hw_param_min);
-EXPORT_SYMBOL(_snd_pcm_hw_param_set);
-EXPORT_SYMBOL(_snd_pcm_hw_param_setempty);
-EXPORT_SYMBOL(_snd_pcm_hw_param_setinteger);
-EXPORT_SYMBOL(snd_pcm_hw_param_value_min);
-EXPORT_SYMBOL(snd_pcm_hw_param_value_max);
-EXPORT_SYMBOL(snd_pcm_hw_param_mask);
-EXPORT_SYMBOL(snd_pcm_hw_param_first);
-EXPORT_SYMBOL(snd_pcm_hw_param_last);
-EXPORT_SYMBOL(snd_pcm_hw_param_near);
-EXPORT_SYMBOL(snd_pcm_hw_param_set);
-EXPORT_SYMBOL(snd_pcm_hw_refine);
-EXPORT_SYMBOL(snd_pcm_hw_constraints_init);
-EXPORT_SYMBOL(snd_pcm_hw_constraints_complete);
-EXPORT_SYMBOL(snd_pcm_hw_constraint_list);
-EXPORT_SYMBOL(snd_pcm_hw_constraint_step);
-EXPORT_SYMBOL(snd_pcm_hw_constraint_ratnums);
-EXPORT_SYMBOL(snd_pcm_hw_constraint_ratdens);
-EXPORT_SYMBOL(snd_pcm_hw_constraint_msbits);
-EXPORT_SYMBOL(snd_pcm_hw_constraint_minmax);
-EXPORT_SYMBOL(snd_pcm_hw_constraint_integer);
-EXPORT_SYMBOL(snd_pcm_hw_constraint_pow2);
-EXPORT_SYMBOL(snd_pcm_hw_rule_add);
-EXPORT_SYMBOL(snd_pcm_set_ops);
-EXPORT_SYMBOL(snd_pcm_set_sync);
-EXPORT_SYMBOL(snd_pcm_lib_ioctl);
-EXPORT_SYMBOL(snd_pcm_stop);
-EXPORT_SYMBOL(snd_pcm_period_elapsed);
-EXPORT_SYMBOL(snd_pcm_lib_write);
-EXPORT_SYMBOL(snd_pcm_lib_read);
-EXPORT_SYMBOL(snd_pcm_lib_writev);
-EXPORT_SYMBOL(snd_pcm_lib_readv);
-EXPORT_SYMBOL(snd_pcm_lib_buffer_bytes);
-EXPORT_SYMBOL(snd_pcm_lib_period_bytes);
-/* pcm_memory.c */
-EXPORT_SYMBOL(snd_pcm_lib_preallocate_free_for_all);
-EXPORT_SYMBOL(snd_pcm_lib_preallocate_pages);
-EXPORT_SYMBOL(snd_pcm_lib_preallocate_pages_for_all);
-EXPORT_SYMBOL(snd_pcm_sgbuf_ops_page);
-EXPORT_SYMBOL(snd_pcm_lib_malloc_pages);
-EXPORT_SYMBOL(snd_pcm_lib_free_pages);
+/* default channel maps for multi-channel playbacks, up to 8 channels */
+const struct snd_pcm_chmap_elem snd_pcm_std_chmaps[] = {
+ { .channels = 1,
+ .map = { SNDRV_CHMAP_MONO } },
+ { .channels = 2,
+ .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } },
+ { .channels = 4,
+ .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR,
+ SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } },
+ { .channels = 6,
+ .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR,
+ SNDRV_CHMAP_RL, SNDRV_CHMAP_RR,
+ SNDRV_CHMAP_FC, SNDRV_CHMAP_LFE } },
+ { .channels = 8,
+ .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR,
+ SNDRV_CHMAP_RL, SNDRV_CHMAP_RR,
+ SNDRV_CHMAP_FC, SNDRV_CHMAP_LFE,
+ SNDRV_CHMAP_SL, SNDRV_CHMAP_SR } },
+ { }
+};
+EXPORT_SYMBOL_GPL(snd_pcm_std_chmaps);
+
+/* alternative channel maps with CLFE <-> surround swapped for 6/8 channels */
+const struct snd_pcm_chmap_elem snd_pcm_alt_chmaps[] = {
+ { .channels = 1,
+ .map = { SNDRV_CHMAP_MONO } },
+ { .channels = 2,
+ .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } },
+ { .channels = 4,
+ .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR,
+ SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } },
+ { .channels = 6,
+ .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR,
+ SNDRV_CHMAP_FC, SNDRV_CHMAP_LFE,
+ SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } },
+ { .channels = 8,
+ .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR,
+ SNDRV_CHMAP_FC, SNDRV_CHMAP_LFE,
+ SNDRV_CHMAP_RL, SNDRV_CHMAP_RR,
+ SNDRV_CHMAP_SL, SNDRV_CHMAP_SR } },
+ { }
+};
+EXPORT_SYMBOL_GPL(snd_pcm_alt_chmaps);
+
+static bool valid_chmap_channels(const struct snd_pcm_chmap *info, int ch)
+{
+ if (ch > info->max_channels)
+ return false;
+ return !info->channel_mask || (info->channel_mask & (1U << ch));
+}
+
+static int pcm_chmap_ctl_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
+
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->count = 0;
+ uinfo->count = info->max_channels;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = SNDRV_CHMAP_LAST;
+ return 0;
+}
+
+/* get callback for channel map ctl element
+ * stores the channel position firstly matching with the current channels
+ */
+static int pcm_chmap_ctl_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
+ unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
+ struct snd_pcm_substream *substream;
+ const struct snd_pcm_chmap_elem *map;
+
+ if (snd_BUG_ON(!info->chmap))
+ return -EINVAL;
+ substream = snd_pcm_chmap_substream(info, idx);
+ if (!substream)
+ return -ENODEV;
+ memset(ucontrol->value.integer.value, 0,
+ sizeof(ucontrol->value.integer.value));
+ if (!substream->runtime)
+ return 0; /* no channels set */
+ for (map = info->chmap; map->channels; map++) {
+ int i;
+ if (map->channels == substream->runtime->channels &&
+ valid_chmap_channels(info, map->channels)) {
+ for (i = 0; i < map->channels; i++)
+ ucontrol->value.integer.value[i] = map->map[i];
+ return 0;
+ }
+ }
+ return -EINVAL;
+}
+
+/* tlv callback for channel map ctl element
+ * expands the pre-defined channel maps in a form of TLV
+ */
+static int pcm_chmap_ctl_tlv(struct snd_kcontrol *kcontrol, int op_flag,
+ unsigned int size, unsigned int __user *tlv)
+{
+ struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
+ const struct snd_pcm_chmap_elem *map;
+ unsigned int __user *dst;
+ int c, count = 0;
+
+ if (snd_BUG_ON(!info->chmap))
+ return -EINVAL;
+ if (size < 8)
+ return -ENOMEM;
+ if (put_user(SNDRV_CTL_TLVT_CONTAINER, tlv))
+ return -EFAULT;
+ size -= 8;
+ dst = tlv + 2;
+ for (map = info->chmap; map->channels; map++) {
+ int chs_bytes = map->channels * 4;
+ if (!valid_chmap_channels(info, map->channels))
+ continue;
+ if (size < 8)
+ return -ENOMEM;
+ if (put_user(SNDRV_CTL_TLVT_CHMAP_FIXED, dst) ||
+ put_user(chs_bytes, dst + 1))
+ return -EFAULT;
+ dst += 2;
+ size -= 8;
+ count += 8;
+ if (size < chs_bytes)
+ return -ENOMEM;
+ size -= chs_bytes;
+ count += chs_bytes;
+ for (c = 0; c < map->channels; c++) {
+ if (put_user(map->map[c], dst))
+ return -EFAULT;
+ dst++;
+ }
+ }
+ if (put_user(count, tlv + 1))
+ return -EFAULT;
+ return 0;
+}
+
+static void pcm_chmap_ctl_private_free(struct snd_kcontrol *kcontrol)
+{
+ struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
+ info->pcm->streams[info->stream].chmap_kctl = NULL;
+ kfree(info);
+}
+
+/**
+ * snd_pcm_add_chmap_ctls - create channel-mapping control elements
+ * @pcm: the assigned PCM instance
+ * @stream: stream direction
+ * @chmap: channel map elements (for query)
+ * @max_channels: the max number of channels for the stream
+ * @private_value: the value passed to each kcontrol's private_value field
+ * @info_ret: store struct snd_pcm_chmap instance if non-NULL
+ *
+ * Create channel-mapping control elements assigned to the given PCM stream(s).
+ * Return: Zero if successful, or a negative error value.
+ */
+int snd_pcm_add_chmap_ctls(struct snd_pcm *pcm, int stream,
+ const struct snd_pcm_chmap_elem *chmap,
+ int max_channels,
+ unsigned long private_value,
+ struct snd_pcm_chmap **info_ret)
+{
+ struct snd_pcm_chmap *info;
+ struct snd_kcontrol_new knew = {
+ .iface = SNDRV_CTL_ELEM_IFACE_PCM,
+ .access = SNDRV_CTL_ELEM_ACCESS_READ |
+ SNDRV_CTL_ELEM_ACCESS_TLV_READ |
+ SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK,
+ .info = pcm_chmap_ctl_info,
+ .get = pcm_chmap_ctl_get,
+ .tlv.c = pcm_chmap_ctl_tlv,
+ };
+ int err;
+
+ info = kzalloc(sizeof(*info), GFP_KERNEL);
+ if (!info)
+ return -ENOMEM;
+ info->pcm = pcm;
+ info->stream = stream;
+ info->chmap = chmap;
+ info->max_channels = max_channels;
+ if (stream == SNDRV_PCM_STREAM_PLAYBACK)
+ knew.name = "Playback Channel Map";
+ else
+ knew.name = "Capture Channel Map";
+ knew.device = pcm->device;
+ knew.count = pcm->streams[stream].substream_count;
+ knew.private_value = private_value;
+ info->kctl = snd_ctl_new1(&knew, info);
+ if (!info->kctl) {
+ kfree(info);
+ return -ENOMEM;
+ }
+ info->kctl->private_free = pcm_chmap_ctl_private_free;
+ err = snd_ctl_add(pcm->card, info->kctl);
+ if (err < 0)
+ return err;
+ pcm->streams[stream].chmap_kctl = info->kctl;
+ if (info_ret)
+ *info_ret = info;
+ return 0;
+}
+EXPORT_SYMBOL_GPL(snd_pcm_add_chmap_ctls);
diff --git a/sound/core/pcm_memory.c b/sound/core/pcm_memory.c
index a0119ae67dc..54debc07f5c 100644
--- a/sound/core/pcm_memory.c
+++ b/sound/core/pcm_memory.c
@@ -1,6 +1,6 @@
/*
* Digital Audio (PCM) abstract layer
- * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
*
*
* This program is free software; you can redistribute it and/or modify
@@ -19,11 +19,13 @@
*
*/
-#include <sound/driver.h>
#include <asm/io.h>
#include <linux/time.h>
#include <linux/init.h>
+#include <linux/slab.h>
#include <linux/moduleparam.h>
+#include <linux/vmalloc.h>
+#include <linux/export.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/info.h>
@@ -49,19 +51,9 @@ static const size_t snd_minimum_buffer = 16384;
static int preallocate_pcm_pages(struct snd_pcm_substream *substream, size_t size)
{
struct snd_dma_buffer *dmab = &substream->dma_buffer;
+ size_t orig_size = size;
int err;
- snd_assert(size > 0, return -EINVAL);
-
- /* already reserved? */
- if (snd_dma_get_reserved_buf(dmab, substream->dma_buf_id) > 0) {
- if (dmab->bytes >= size)
- return 0; /* yes */
- /* no, free the reserved block */
- snd_dma_free_pages(dmab);
- dmab->bytes = 0;
- }
-
do {
if ((err = snd_dma_alloc_pages(dmab->dev.type, dmab->dev.dev,
size, dmab)) < 0) {
@@ -72,6 +64,10 @@ static int preallocate_pcm_pages(struct snd_pcm_substream *substream, size_t siz
size >>= 1;
} while (size >= snd_minimum_buffer);
dmab->bytes = 0; /* tell error */
+ pr_warn("ALSA pcmC%dD%d%c,%d:%s: cannot preallocate for size %zu\n",
+ substream->pcm->card->number, substream->pcm->device,
+ substream->stream ? 'c' : 'p', substream->number,
+ substream->pcm->name, orig_size);
return 0;
}
@@ -82,10 +78,7 @@ static void snd_pcm_lib_preallocate_dma_free(struct snd_pcm_substream *substream
{
if (substream->dma_buffer.area == NULL)
return;
- if (substream->dma_buf_id)
- snd_dma_reserve_buf(&substream->dma_buffer, substream->dma_buf_id);
- else
- snd_dma_free_pages(&substream->dma_buffer);
+ snd_dma_free_pages(&substream->dma_buffer);
substream->dma_buffer.area = NULL;
}
@@ -95,13 +88,17 @@ static void snd_pcm_lib_preallocate_dma_free(struct snd_pcm_substream *substream
*
* Releases the pre-allocated buffer of the given substream.
*
- * Returns zero if successful, or a negative error code on failure.
+ * Return: Zero if successful, or a negative error code on failure.
*/
int snd_pcm_lib_preallocate_free(struct snd_pcm_substream *substream)
{
snd_pcm_lib_preallocate_dma_free(substream);
- snd_info_unregister(substream->proc_prealloc_entry);
+#ifdef CONFIG_SND_VERBOSE_PROCFS
+ snd_info_free_entry(substream->proc_prealloc_max_entry);
+ substream->proc_prealloc_max_entry = NULL;
+ snd_info_free_entry(substream->proc_prealloc_entry);
substream->proc_prealloc_entry = NULL;
+#endif
return 0;
}
@@ -111,7 +108,7 @@ int snd_pcm_lib_preallocate_free(struct snd_pcm_substream *substream)
*
* Releases all the pre-allocated buffers on the given pcm.
*
- * Returns zero if successful, or a negative error code on failure.
+ * Return: Zero if successful, or a negative error code on failure.
*/
int snd_pcm_lib_preallocate_free_for_all(struct snd_pcm *pcm)
{
@@ -124,7 +121,9 @@ int snd_pcm_lib_preallocate_free_for_all(struct snd_pcm *pcm)
return 0;
}
-#ifdef CONFIG_PROC_FS
+EXPORT_SYMBOL(snd_pcm_lib_preallocate_free_for_all);
+
+#ifdef CONFIG_SND_VERBOSE_PROCFS
/*
* read callback for prealloc proc file
*
@@ -138,6 +137,18 @@ static void snd_pcm_lib_preallocate_proc_read(struct snd_info_entry *entry,
}
/*
+ * read callback for prealloc_max proc file
+ *
+ * prints the maximum allowed size in kB.
+ */
+static void snd_pcm_lib_preallocate_max_proc_read(struct snd_info_entry *entry,
+ struct snd_info_buffer *buffer)
+{
+ struct snd_pcm_substream *substream = entry->private_data;
+ snd_iprintf(buffer, "%lu\n", (unsigned long) substream->dma_max / 1024);
+}
+
+/*
* write callback for prealloc proc file
*
* accepts the preallocation size in kB.
@@ -189,9 +200,7 @@ static inline void preallocate_info_init(struct snd_pcm_substream *substream)
struct snd_info_entry *entry;
if ((entry = snd_info_create_card_entry(substream->pcm->card, "prealloc", substream->proc_root)) != NULL) {
- entry->c.text.read_size = 64;
entry->c.text.read = snd_pcm_lib_preallocate_proc_read;
- entry->c.text.write_size = 64;
entry->c.text.write = snd_pcm_lib_preallocate_proc_write;
entry->mode |= S_IWUSR;
entry->private_data = substream;
@@ -201,11 +210,20 @@ static inline void preallocate_info_init(struct snd_pcm_substream *substream)
}
}
substream->proc_prealloc_entry = entry;
+ if ((entry = snd_info_create_card_entry(substream->pcm->card, "prealloc_max", substream->proc_root)) != NULL) {
+ entry->c.text.read = snd_pcm_lib_preallocate_max_proc_read;
+ entry->private_data = substream;
+ if (snd_info_register(entry) < 0) {
+ snd_info_free_entry(entry);
+ entry = NULL;
+ }
+ }
+ substream->proc_prealloc_max_entry = entry;
}
-#else /* !CONFIG_PROC_FS */
+#else /* !CONFIG_SND_VERBOSE_PROCFS */
#define preallocate_info_init(s)
-#endif
+#endif /* CONFIG_SND_VERBOSE_PROCFS */
/*
* pre-allocate the buffer and create a proc file for the substream
@@ -229,18 +247,13 @@ static int snd_pcm_lib_preallocate_pages1(struct snd_pcm_substream *substream,
* snd_pcm_lib_preallocate_pages - pre-allocation for the given DMA type
* @substream: the pcm substream instance
* @type: DMA type (SNDRV_DMA_TYPE_*)
- * @data: DMA type dependant data
+ * @data: DMA type dependent data
* @size: the requested pre-allocation size in bytes
* @max: the max. allowed pre-allocation size
*
* Do pre-allocation for the given DMA buffer type.
*
- * When substream->dma_buf_id is set, the function tries to look for
- * the reserved buffer, and the buffer is not freed but reserved at
- * destruction time. The dma_buf_id must be unique for all systems
- * (in the same DMA buffer type) e.g. using snd_dma_pci_buf_id().
- *
- * Returns zero if successful, or a negative error code on failure.
+ * Return: Zero if successful, or a negative error code on failure.
*/
int snd_pcm_lib_preallocate_pages(struct snd_pcm_substream *substream,
int type, struct device *data,
@@ -251,18 +264,20 @@ int snd_pcm_lib_preallocate_pages(struct snd_pcm_substream *substream,
return snd_pcm_lib_preallocate_pages1(substream, size, max);
}
+EXPORT_SYMBOL(snd_pcm_lib_preallocate_pages);
+
/**
- * snd_pcm_lib_preallocate_pages_for_all - pre-allocation for continous memory type (all substreams)
+ * snd_pcm_lib_preallocate_pages_for_all - pre-allocation for continuous memory type (all substreams)
* @pcm: the pcm instance
* @type: DMA type (SNDRV_DMA_TYPE_*)
- * @data: DMA type dependant data
+ * @data: DMA type dependent data
* @size: the requested pre-allocation size in bytes
* @max: the max. allowed pre-allocation size
*
* Do pre-allocation to all substreams of the given pcm for the
* specified DMA type.
*
- * Returns zero if successful, or a negative error code on failure.
+ * Return: Zero if successful, or a negative error code on failure.
*/
int snd_pcm_lib_preallocate_pages_for_all(struct snd_pcm *pcm,
int type, void *data,
@@ -278,13 +293,17 @@ int snd_pcm_lib_preallocate_pages_for_all(struct snd_pcm *pcm,
return 0;
}
+EXPORT_SYMBOL(snd_pcm_lib_preallocate_pages_for_all);
+
+#ifdef CONFIG_SND_DMA_SGBUF
/**
* snd_pcm_sgbuf_ops_page - get the page struct at the given offset
* @substream: the pcm substream instance
* @offset: the buffer offset
*
- * Returns the page struct at the given buffer offset.
* Used as the page callback of PCM ops.
+ *
+ * Return: The page struct at the given buffer offset. %NULL on failure.
*/
struct page *snd_pcm_sgbuf_ops_page(struct snd_pcm_substream *substream, unsigned long offset)
{
@@ -296,6 +315,9 @@ struct page *snd_pcm_sgbuf_ops_page(struct snd_pcm_substream *substream, unsigne
return sgbuf->page_table[idx];
}
+EXPORT_SYMBOL(snd_pcm_sgbuf_ops_page);
+#endif /* CONFIG_SND_DMA_SGBUF */
+
/**
* snd_pcm_lib_malloc_pages - allocate the DMA buffer
* @substream: the substream to allocate the DMA buffer to
@@ -304,7 +326,7 @@ struct page *snd_pcm_sgbuf_ops_page(struct snd_pcm_substream *substream, unsigne
* Allocates the DMA buffer on the BUS type given earlier to
* snd_pcm_lib_preallocate_xxx_pages().
*
- * Returns 1 if the buffer is changed, 0 if not changed, or a negative
+ * Return: 1 if the buffer is changed, 0 if not changed, or a negative
* code on failure.
*/
int snd_pcm_lib_malloc_pages(struct snd_pcm_substream *substream, size_t size)
@@ -312,10 +334,12 @@ int snd_pcm_lib_malloc_pages(struct snd_pcm_substream *substream, size_t size)
struct snd_pcm_runtime *runtime;
struct snd_dma_buffer *dmab = NULL;
- snd_assert(substream->dma_buffer.dev.type != SNDRV_DMA_TYPE_UNKNOWN, return -EINVAL);
- snd_assert(substream != NULL, return -EINVAL);
+ if (PCM_RUNTIME_CHECK(substream))
+ return -EINVAL;
+ if (snd_BUG_ON(substream->dma_buffer.dev.type ==
+ SNDRV_DMA_TYPE_UNKNOWN))
+ return -EINVAL;
runtime = substream->runtime;
- snd_assert(runtime != NULL, return -EINVAL);
if (runtime->dma_buffer_p) {
/* perphaps, we might free the large DMA memory region
@@ -347,21 +371,23 @@ int snd_pcm_lib_malloc_pages(struct snd_pcm_substream *substream, size_t size)
return 1; /* area was changed */
}
+EXPORT_SYMBOL(snd_pcm_lib_malloc_pages);
+
/**
* snd_pcm_lib_free_pages - release the allocated DMA buffer.
* @substream: the substream to release the DMA buffer
*
* Releases the DMA buffer allocated via snd_pcm_lib_malloc_pages().
*
- * Returns zero if successful, or a negative error code on failure.
+ * Return: Zero if successful, or a negative error code on failure.
*/
int snd_pcm_lib_free_pages(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime;
- snd_assert(substream != NULL, return -EINVAL);
+ if (PCM_RUNTIME_CHECK(substream))
+ return -EINVAL;
runtime = substream->runtime;
- snd_assert(runtime != NULL, return -EINVAL);
if (runtime->dma_area == NULL)
return 0;
if (runtime->dma_buffer_p != &substream->dma_buffer) {
@@ -372,3 +398,63 @@ int snd_pcm_lib_free_pages(struct snd_pcm_substream *substream)
snd_pcm_set_runtime_buffer(substream, NULL);
return 0;
}
+
+EXPORT_SYMBOL(snd_pcm_lib_free_pages);
+
+int _snd_pcm_lib_alloc_vmalloc_buffer(struct snd_pcm_substream *substream,
+ size_t size, gfp_t gfp_flags)
+{
+ struct snd_pcm_runtime *runtime;
+
+ if (PCM_RUNTIME_CHECK(substream))
+ return -EINVAL;
+ runtime = substream->runtime;
+ if (runtime->dma_area) {
+ if (runtime->dma_bytes >= size)
+ return 0; /* already large enough */
+ vfree(runtime->dma_area);
+ }
+ runtime->dma_area = __vmalloc(size, gfp_flags, PAGE_KERNEL);
+ if (!runtime->dma_area)
+ return -ENOMEM;
+ runtime->dma_bytes = size;
+ return 1;
+}
+EXPORT_SYMBOL(_snd_pcm_lib_alloc_vmalloc_buffer);
+
+/**
+ * snd_pcm_lib_free_vmalloc_buffer - free vmalloc buffer
+ * @substream: the substream with a buffer allocated by
+ * snd_pcm_lib_alloc_vmalloc_buffer()
+ *
+ * Return: Zero if successful, or a negative error code on failure.
+ */
+int snd_pcm_lib_free_vmalloc_buffer(struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime;
+
+ if (PCM_RUNTIME_CHECK(substream))
+ return -EINVAL;
+ runtime = substream->runtime;
+ vfree(runtime->dma_area);
+ runtime->dma_area = NULL;
+ return 0;
+}
+EXPORT_SYMBOL(snd_pcm_lib_free_vmalloc_buffer);
+
+/**
+ * snd_pcm_lib_get_vmalloc_page - map vmalloc buffer offset to page struct
+ * @substream: the substream with a buffer allocated by
+ * snd_pcm_lib_alloc_vmalloc_buffer()
+ * @offset: offset in the buffer
+ *
+ * This function is to be used as the page callback in the PCM ops.
+ *
+ * Return: The page struct, or %NULL on failure.
+ */
+struct page *snd_pcm_lib_get_vmalloc_page(struct snd_pcm_substream *substream,
+ unsigned long offset)
+{
+ return vmalloc_to_page(substream->runtime->dma_area + offset);
+}
+EXPORT_SYMBOL(snd_pcm_lib_get_vmalloc_page);
diff --git a/sound/core/pcm_misc.c b/sound/core/pcm_misc.c
index 593c77f4d18..4560ca0e565 100644
--- a/sound/core/pcm_misc.c
+++ b/sound/core/pcm_misc.c
@@ -1,6 +1,6 @@
/*
* PCM Interface - misc routines
- * Copyright (c) 1998 by Jaroslav Kysela <perex@suse.cz>
+ * Copyright (c) 1998 by Jaroslav Kysela <perex@perex.cz>
*
*
* This library is free software; you can redistribute it and/or modify
@@ -19,8 +19,8 @@
*
*/
-#include <sound/driver.h>
#include <linux/time.h>
+#include <linux/export.h>
#include <sound/core.h>
#include <sound/pcm.h>
#define SND_PCM_FORMAT_UNKNOWN (-1)
@@ -36,7 +36,10 @@ struct pcm_format_data {
unsigned char silence[8]; /* silence data to fill */
};
-static struct pcm_format_data pcm_formats[SNDRV_PCM_FORMAT_LAST+1] = {
+/* we do lots of calculations on snd_pcm_format_t; shut up sparse */
+#define INT __force int
+
+static struct pcm_format_data pcm_formats[(INT)SNDRV_PCM_FORMAT_LAST+1] = {
[SNDRV_PCM_FORMAT_S8] = {
.width = 8, .phys = 8, .le = -1, .signd = 1,
.silence = {},
@@ -75,7 +78,7 @@ static struct pcm_format_data pcm_formats[SNDRV_PCM_FORMAT_LAST+1] = {
},
[SNDRV_PCM_FORMAT_U24_BE] = {
.width = 24, .phys = 32, .le = 0, .signd = 0,
- .silence = { 0x80, 0x00, 0x00 },
+ .silence = { 0x00, 0x80, 0x00, 0x00 },
},
[SNDRV_PCM_FORMAT_S32_LE] = {
.width = 32, .phys = 32, .le = 1, .signd = 1,
@@ -129,6 +132,22 @@ static struct pcm_format_data pcm_formats[SNDRV_PCM_FORMAT_LAST+1] = {
.width = 4, .phys = 4, .le = -1, .signd = -1,
.silence = {},
},
+ [SNDRV_PCM_FORMAT_G723_24] = {
+ .width = 3, .phys = 3, .le = -1, .signd = -1,
+ .silence = {},
+ },
+ [SNDRV_PCM_FORMAT_G723_40] = {
+ .width = 5, .phys = 5, .le = -1, .signd = -1,
+ .silence = {},
+ },
+ [SNDRV_PCM_FORMAT_DSD_U8] = {
+ .width = 8, .phys = 8, .le = 1, .signd = 0,
+ .silence = {},
+ },
+ [SNDRV_PCM_FORMAT_DSD_U16_LE] = {
+ .width = 16, .phys = 16, .le = 1, .signd = 0,
+ .silence = {},
+ },
/* FIXME: the following three formats are not defined properly yet */
[SNDRV_PCM_FORMAT_MPEG] = {
.le = -1, .signd = -1,
@@ -187,6 +206,14 @@ static struct pcm_format_data pcm_formats[SNDRV_PCM_FORMAT_LAST+1] = {
.width = 18, .phys = 24, .le = 0, .signd = 0,
.silence = { 0x02, 0x00, 0x00 },
},
+ [SNDRV_PCM_FORMAT_G723_24_1B] = {
+ .width = 3, .phys = 8, .le = -1, .signd = -1,
+ .silence = {},
+ },
+ [SNDRV_PCM_FORMAT_G723_40_1B] = {
+ .width = 5, .phys = 8, .le = -1, .signd = -1,
+ .silence = {},
+ },
};
@@ -194,24 +221,26 @@ static struct pcm_format_data pcm_formats[SNDRV_PCM_FORMAT_LAST+1] = {
* snd_pcm_format_signed - Check the PCM format is signed linear
* @format: the format to check
*
- * Returns 1 if the given PCM format is signed linear, 0 if unsigned
+ * Return: 1 if the given PCM format is signed linear, 0 if unsigned
* linear, and a negative error code for non-linear formats.
*/
int snd_pcm_format_signed(snd_pcm_format_t format)
{
int val;
- if (format < 0 || format > SNDRV_PCM_FORMAT_LAST)
+ if ((INT)format < 0 || (INT)format > (INT)SNDRV_PCM_FORMAT_LAST)
return -EINVAL;
- if ((val = pcm_formats[format].signd) < 0)
+ if ((val = pcm_formats[(INT)format].signd) < 0)
return -EINVAL;
return val;
}
+EXPORT_SYMBOL(snd_pcm_format_signed);
+
/**
* snd_pcm_format_unsigned - Check the PCM format is unsigned linear
* @format: the format to check
*
- * Returns 1 if the given PCM format is unsigned linear, 0 if signed
+ * Return: 1 if the given PCM format is unsigned linear, 0 if signed
* linear, and a negative error code for non-linear formats.
*/
int snd_pcm_format_unsigned(snd_pcm_format_t format)
@@ -224,39 +253,45 @@ int snd_pcm_format_unsigned(snd_pcm_format_t format)
return !val;
}
+EXPORT_SYMBOL(snd_pcm_format_unsigned);
+
/**
* snd_pcm_format_linear - Check the PCM format is linear
* @format: the format to check
*
- * Returns 1 if the given PCM format is linear, 0 if not.
+ * Return: 1 if the given PCM format is linear, 0 if not.
*/
int snd_pcm_format_linear(snd_pcm_format_t format)
{
return snd_pcm_format_signed(format) >= 0;
}
+EXPORT_SYMBOL(snd_pcm_format_linear);
+
/**
* snd_pcm_format_little_endian - Check the PCM format is little-endian
* @format: the format to check
*
- * Returns 1 if the given PCM format is little-endian, 0 if
+ * Return: 1 if the given PCM format is little-endian, 0 if
* big-endian, or a negative error code if endian not specified.
*/
int snd_pcm_format_little_endian(snd_pcm_format_t format)
{
int val;
- if (format < 0 || format > SNDRV_PCM_FORMAT_LAST)
+ if ((INT)format < 0 || (INT)format > (INT)SNDRV_PCM_FORMAT_LAST)
return -EINVAL;
- if ((val = pcm_formats[format].le) < 0)
+ if ((val = pcm_formats[(INT)format].le) < 0)
return -EINVAL;
return val;
}
+EXPORT_SYMBOL(snd_pcm_format_little_endian);
+
/**
* snd_pcm_format_big_endian - Check the PCM format is big-endian
* @format: the format to check
*
- * Returns 1 if the given PCM format is big-endian, 0 if
+ * Return: 1 if the given PCM format is big-endian, 0 if
* little-endian, or a negative error code if endian not specified.
*/
int snd_pcm_format_big_endian(snd_pcm_format_t format)
@@ -269,45 +304,52 @@ int snd_pcm_format_big_endian(snd_pcm_format_t format)
return !val;
}
+EXPORT_SYMBOL(snd_pcm_format_big_endian);
+
/**
* snd_pcm_format_width - return the bit-width of the format
* @format: the format to check
*
- * Returns the bit-width of the format, or a negative error code
+ * Return: The bit-width of the format, or a negative error code
* if unknown format.
*/
int snd_pcm_format_width(snd_pcm_format_t format)
{
int val;
- if (format < 0 || format > SNDRV_PCM_FORMAT_LAST)
+ if ((INT)format < 0 || (INT)format > (INT)SNDRV_PCM_FORMAT_LAST)
return -EINVAL;
- if ((val = pcm_formats[format].width) == 0)
+ if ((val = pcm_formats[(INT)format].width) == 0)
return -EINVAL;
return val;
}
+EXPORT_SYMBOL(snd_pcm_format_width);
+
/**
* snd_pcm_format_physical_width - return the physical bit-width of the format
* @format: the format to check
*
- * Returns the physical bit-width of the format, or a negative error code
+ * Return: The physical bit-width of the format, or a negative error code
* if unknown format.
*/
int snd_pcm_format_physical_width(snd_pcm_format_t format)
{
int val;
- if (format < 0 || format > SNDRV_PCM_FORMAT_LAST)
+ if ((INT)format < 0 || (INT)format > (INT)SNDRV_PCM_FORMAT_LAST)
return -EINVAL;
- if ((val = pcm_formats[format].phys) == 0)
+ if ((val = pcm_formats[(INT)format].phys) == 0)
return -EINVAL;
return val;
}
+EXPORT_SYMBOL(snd_pcm_format_physical_width);
+
/**
* snd_pcm_format_size - return the byte size of samples on the given format
* @format: the format to check
+ * @samples: sampling rate
*
- * Returns the byte size of the given samples for the format, or a
+ * Return: The byte size of the given samples for the format, or a
* negative error code if unknown format.
*/
ssize_t snd_pcm_format_size(snd_pcm_format_t format, size_t samples)
@@ -318,21 +360,25 @@ ssize_t snd_pcm_format_size(snd_pcm_format_t format, size_t samples)
return samples * phys_width / 8;
}
+EXPORT_SYMBOL(snd_pcm_format_size);
+
/**
* snd_pcm_format_silence_64 - return the silent data in 8 bytes array
* @format: the format to check
*
- * Returns the format pattern to fill or NULL if error.
+ * Return: The format pattern to fill or %NULL if error.
*/
const unsigned char *snd_pcm_format_silence_64(snd_pcm_format_t format)
{
- if (format < 0 || format > SNDRV_PCM_FORMAT_LAST)
+ if ((INT)format < 0 || (INT)format > (INT)SNDRV_PCM_FORMAT_LAST)
return NULL;
- if (! pcm_formats[format].phys)
+ if (! pcm_formats[(INT)format].phys)
return NULL;
- return pcm_formats[format].silence;
+ return pcm_formats[(INT)format].silence;
}
+EXPORT_SYMBOL(snd_pcm_format_silence_64);
+
/**
* snd_pcm_format_set_silence - set the silence data on the buffer
* @format: the PCM format
@@ -341,23 +387,23 @@ const unsigned char *snd_pcm_format_silence_64(snd_pcm_format_t format)
*
* Sets the silence data on the buffer for the given samples.
*
- * Returns zero if successful, or a negative error code on failure.
+ * Return: Zero if successful, or a negative error code on failure.
*/
int snd_pcm_format_set_silence(snd_pcm_format_t format, void *data, unsigned int samples)
{
int width;
unsigned char *dst, *pat;
- if (format < 0 || format > SNDRV_PCM_FORMAT_LAST)
+ if ((INT)format < 0 || (INT)format > (INT)SNDRV_PCM_FORMAT_LAST)
return -EINVAL;
if (samples == 0)
return 0;
- width = pcm_formats[format].phys; /* physical width */
- pat = pcm_formats[format].silence;
+ width = pcm_formats[(INT)format].phys; /* physical width */
+ pat = pcm_formats[(INT)format].silence;
if (! width)
return -EINVAL;
/* signed or 1 byte data */
- if (pcm_formats[format].signd == 1 || width <= 8) {
+ if (pcm_formats[(INT)format].signd == 1 || width <= 8) {
unsigned int bytes = samples * width / 8;
memset(data, *pat, bytes);
return 0;
@@ -402,35 +448,7 @@ int snd_pcm_format_set_silence(snd_pcm_format_t format, void *data, unsigned int
return 0;
}
-/* [width][unsigned][bigendian] */
-static int linear_formats[4][2][2] = {
- {{ SNDRV_PCM_FORMAT_S8, SNDRV_PCM_FORMAT_S8},
- { SNDRV_PCM_FORMAT_U8, SNDRV_PCM_FORMAT_U8}},
- {{SNDRV_PCM_FORMAT_S16_LE, SNDRV_PCM_FORMAT_S16_BE},
- {SNDRV_PCM_FORMAT_U16_LE, SNDRV_PCM_FORMAT_U16_BE}},
- {{SNDRV_PCM_FORMAT_S24_LE, SNDRV_PCM_FORMAT_S24_BE},
- {SNDRV_PCM_FORMAT_U24_LE, SNDRV_PCM_FORMAT_U24_BE}},
- {{SNDRV_PCM_FORMAT_S32_LE, SNDRV_PCM_FORMAT_S32_BE},
- {SNDRV_PCM_FORMAT_U32_LE, SNDRV_PCM_FORMAT_U32_BE}}
-};
-
-/**
- * snd_pcm_build_linear_format - return the suitable linear format for the given condition
- * @width: the bit-width
- * @unsignd: 1 if unsigned, 0 if signed.
- * @big_endian: 1 if big-endian, 0 if little-endian
- *
- * Returns the suitable linear format for the given condition.
- */
-snd_pcm_format_t snd_pcm_build_linear_format(int width, int unsignd, int big_endian)
-{
- if (width & 7)
- return SND_PCM_FORMAT_UNKNOWN;
- width = (width / 8) - 1;
- if (width < 0 || width >= 4)
- return SND_PCM_FORMAT_UNKNOWN;
- return linear_formats[width][!!unsignd][!!big_endian];
-}
+EXPORT_SYMBOL(snd_pcm_format_set_silence);
/**
* snd_pcm_limit_hw_rates - determine rate_min/rate_max fields
@@ -439,27 +457,99 @@ snd_pcm_format_t snd_pcm_build_linear_format(int width, int unsignd, int big_end
* Determines the rate_min and rate_max fields from the rates bits of
* the given runtime->hw.
*
- * Returns zero if successful.
+ * Return: Zero if successful.
*/
int snd_pcm_limit_hw_rates(struct snd_pcm_runtime *runtime)
{
- static unsigned rates[] = {
- /* ATTENTION: these values depend on the definition in pcm.h! */
- 5512, 8000, 11025, 16000, 22050, 32000, 44100, 48000,
- 64000, 88200, 96000, 176400, 192000
- };
int i;
- for (i = 0; i < (int)ARRAY_SIZE(rates); i++) {
+ for (i = 0; i < (int)snd_pcm_known_rates.count; i++) {
if (runtime->hw.rates & (1 << i)) {
- runtime->hw.rate_min = rates[i];
+ runtime->hw.rate_min = snd_pcm_known_rates.list[i];
break;
}
}
- for (i = (int)ARRAY_SIZE(rates) - 1; i >= 0; i--) {
+ for (i = (int)snd_pcm_known_rates.count - 1; i >= 0; i--) {
if (runtime->hw.rates & (1 << i)) {
- runtime->hw.rate_max = rates[i];
+ runtime->hw.rate_max = snd_pcm_known_rates.list[i];
break;
}
}
return 0;
}
+
+EXPORT_SYMBOL(snd_pcm_limit_hw_rates);
+
+/**
+ * snd_pcm_rate_to_rate_bit - converts sample rate to SNDRV_PCM_RATE_xxx bit
+ * @rate: the sample rate to convert
+ *
+ * Return: The SNDRV_PCM_RATE_xxx flag that corresponds to the given rate, or
+ * SNDRV_PCM_RATE_KNOT for an unknown rate.
+ */
+unsigned int snd_pcm_rate_to_rate_bit(unsigned int rate)
+{
+ unsigned int i;
+
+ for (i = 0; i < snd_pcm_known_rates.count; i++)
+ if (snd_pcm_known_rates.list[i] == rate)
+ return 1u << i;
+ return SNDRV_PCM_RATE_KNOT;
+}
+EXPORT_SYMBOL(snd_pcm_rate_to_rate_bit);
+
+/**
+ * snd_pcm_rate_bit_to_rate - converts SNDRV_PCM_RATE_xxx bit to sample rate
+ * @rate_bit: the rate bit to convert
+ *
+ * Return: The sample rate that corresponds to the given SNDRV_PCM_RATE_xxx flag
+ * or 0 for an unknown rate bit.
+ */
+unsigned int snd_pcm_rate_bit_to_rate(unsigned int rate_bit)
+{
+ unsigned int i;
+
+ for (i = 0; i < snd_pcm_known_rates.count; i++)
+ if ((1u << i) == rate_bit)
+ return snd_pcm_known_rates.list[i];
+ return 0;
+}
+EXPORT_SYMBOL(snd_pcm_rate_bit_to_rate);
+
+static unsigned int snd_pcm_rate_mask_sanitize(unsigned int rates)
+{
+ if (rates & SNDRV_PCM_RATE_CONTINUOUS)
+ return SNDRV_PCM_RATE_CONTINUOUS;
+ else if (rates & SNDRV_PCM_RATE_KNOT)
+ return SNDRV_PCM_RATE_KNOT;
+ return rates;
+}
+
+/**
+ * snd_pcm_rate_mask_intersect - computes the intersection between two rate masks
+ * @rates_a: The first rate mask
+ * @rates_b: The second rate mask
+ *
+ * This function computes the rates that are supported by both rate masks passed
+ * to the function. It will take care of the special handling of
+ * SNDRV_PCM_RATE_CONTINUOUS and SNDRV_PCM_RATE_KNOT.
+ *
+ * Return: A rate mask containing the rates that are supported by both rates_a
+ * and rates_b.
+ */
+unsigned int snd_pcm_rate_mask_intersect(unsigned int rates_a,
+ unsigned int rates_b)
+{
+ rates_a = snd_pcm_rate_mask_sanitize(rates_a);
+ rates_b = snd_pcm_rate_mask_sanitize(rates_b);
+
+ if (rates_a & SNDRV_PCM_RATE_CONTINUOUS)
+ return rates_b;
+ else if (rates_b & SNDRV_PCM_RATE_CONTINUOUS)
+ return rates_a;
+ else if (rates_a & SNDRV_PCM_RATE_KNOT)
+ return rates_b;
+ else if (rates_b & SNDRV_PCM_RATE_KNOT)
+ return rates_a;
+ return rates_a & rates_b;
+}
+EXPORT_SYMBOL_GPL(snd_pcm_rate_mask_intersect);
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index f3d5de7b55a..b653ab001fb 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -1,6 +1,6 @@
/*
* Digital Audio (PCM) abstract layer
- * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
*
*
* This program is free software; you can redistribute it and/or modify
@@ -19,13 +19,14 @@
*
*/
-#include <sound/driver.h>
#include <linux/mm.h>
-#include <linux/smp_lock.h>
+#include <linux/module.h>
#include <linux/file.h>
#include <linux/slab.h>
#include <linux/time.h>
-#include <linux/uio.h>
+#include <linux/pm_qos.h>
+#include <linux/aio.h>
+#include <linux/dma-mapping.h>
#include <sound/core.h>
#include <sound/control.h>
#include <sound/info.h>
@@ -34,6 +35,9 @@
#include <sound/timer.h>
#include <sound/minors.h>
#include <asm/io.h>
+#if defined(CONFIG_MIPS) && defined(CONFIG_DMA_NONCOHERENT)
+#include <dma-coherence.h>
+#endif
/*
* Compatibility
@@ -71,8 +75,9 @@ static int snd_pcm_open(struct file *file, struct snd_pcm *pcm, int stream);
*/
DEFINE_RWLOCK(snd_pcm_link_rwlock);
-static DECLARE_RWSEM(snd_pcm_link_rwsem);
+EXPORT_SYMBOL(snd_pcm_link_rwlock);
+static DECLARE_RWSEM(snd_pcm_link_rwsem);
static inline mm_segment_t snd_enter_user(void)
{
@@ -94,7 +99,6 @@ int snd_pcm_info(struct snd_pcm_substream *substream, struct snd_pcm_info *info)
struct snd_pcm *pcm = substream->pcm;
struct snd_pcm_str *pstr = substream->pstr;
- snd_assert(substream != NULL, return -ENXIO);
memset(info, 0, sizeof(*info));
info->card = pcm->card->number;
info->device = pcm->device;
@@ -138,7 +142,7 @@ int snd_pcm_info_user(struct snd_pcm_substream *substream,
#ifdef RULES_DEBUG
#define HW_PARAM(v) [SNDRV_PCM_HW_PARAM_##v] = #v
-char *snd_pcm_hw_param_names[] = {
+static const char * const snd_pcm_hw_param_names[] = {
HW_PARAM(ACCESS),
HW_PARAM(FORMAT),
HW_PARAM(SUBFORMAT),
@@ -186,12 +190,12 @@ int snd_pcm_hw_refine(struct snd_pcm_substream *substream,
if (!(params->rmask & (1 << k)))
continue;
#ifdef RULES_DEBUG
- printk("%s = ", snd_pcm_hw_param_names[k]);
- printk("%04x%04x%04x%04x -> ", m->bits[3], m->bits[2], m->bits[1], m->bits[0]);
+ pr_debug("%s = ", snd_pcm_hw_param_names[k]);
+ pr_cont("%04x%04x%04x%04x -> ", m->bits[3], m->bits[2], m->bits[1], m->bits[0]);
#endif
changed = snd_mask_refine(m, constrs_mask(constrs, k));
#ifdef RULES_DEBUG
- printk("%04x%04x%04x%04x\n", m->bits[3], m->bits[2], m->bits[1], m->bits[0]);
+ pr_cont("%04x%04x%04x%04x\n", m->bits[3], m->bits[2], m->bits[1], m->bits[0]);
#endif
if (changed)
params->cmask |= 1 << k;
@@ -206,21 +210,21 @@ int snd_pcm_hw_refine(struct snd_pcm_substream *substream,
if (!(params->rmask & (1 << k)))
continue;
#ifdef RULES_DEBUG
- printk("%s = ", snd_pcm_hw_param_names[k]);
+ pr_debug("%s = ", snd_pcm_hw_param_names[k]);
if (i->empty)
- printk("empty");
+ pr_cont("empty");
else
- printk("%c%u %u%c",
+ pr_cont("%c%u %u%c",
i->openmin ? '(' : '[', i->min,
i->max, i->openmax ? ')' : ']');
- printk(" -> ");
+ pr_cont(" -> ");
#endif
changed = snd_interval_refine(i, constrs_interval(constrs, k));
#ifdef RULES_DEBUG
if (i->empty)
- printk("empty\n");
+ pr_cont("empty\n");
else
- printk("%c%u %u%c\n",
+ pr_cont("%c%u %u%c\n",
i->openmin ? '(' : '[', i->min,
i->max, i->openmax ? ')' : ']');
#endif
@@ -251,18 +255,18 @@ int snd_pcm_hw_refine(struct snd_pcm_substream *substream,
if (!doit)
continue;
#ifdef RULES_DEBUG
- printk("Rule %d [%p]: ", k, r->func);
+ pr_debug("Rule %d [%p]: ", k, r->func);
if (r->var >= 0) {
- printk("%s = ", snd_pcm_hw_param_names[r->var]);
+ pr_cont("%s = ", snd_pcm_hw_param_names[r->var]);
if (hw_is_mask(r->var)) {
m = hw_param_mask(params, r->var);
- printk("%x", *m->bits);
+ pr_cont("%x", *m->bits);
} else {
i = hw_param_interval(params, r->var);
if (i->empty)
- printk("empty");
+ pr_cont("empty");
else
- printk("%c%u %u%c",
+ pr_cont("%c%u %u%c",
i->openmin ? '(' : '[', i->min,
i->max, i->openmax ? ')' : ']');
}
@@ -271,19 +275,19 @@ int snd_pcm_hw_refine(struct snd_pcm_substream *substream,
changed = r->func(params, r);
#ifdef RULES_DEBUG
if (r->var >= 0) {
- printk(" -> ");
+ pr_cont(" -> ");
if (hw_is_mask(r->var))
- printk("%x", *m->bits);
+ pr_cont("%x", *m->bits);
else {
if (i->empty)
- printk("empty");
+ pr_cont("empty");
else
- printk("%c%u %u%c",
+ pr_cont("%c%u %u%c",
i->openmin ? '(' : '[', i->min,
i->max, i->openmax ? ')' : ']');
}
}
- printk("\n");
+ pr_cont("\n");
#endif
rstamps[k] = stamp;
if (changed && r->var >= 0) {
@@ -312,49 +316,78 @@ int snd_pcm_hw_refine(struct snd_pcm_substream *substream,
hw = &substream->runtime->hw;
if (!params->info)
- params->info = hw->info;
- if (!params->fifo_size)
- params->fifo_size = hw->fifo_size;
+ params->info = hw->info & ~SNDRV_PCM_INFO_FIFO_IN_FRAMES;
+ if (!params->fifo_size) {
+ m = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
+ i = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
+ if (snd_mask_min(m) == snd_mask_max(m) &&
+ snd_interval_min(i) == snd_interval_max(i)) {
+ changed = substream->ops->ioctl(substream,
+ SNDRV_PCM_IOCTL1_FIFO_SIZE, params);
+ if (changed < 0)
+ return changed;
+ }
+ }
params->rmask = 0;
return 0;
}
+EXPORT_SYMBOL(snd_pcm_hw_refine);
+
static int snd_pcm_hw_refine_user(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params __user * _params)
{
struct snd_pcm_hw_params *params;
int err;
- params = kmalloc(sizeof(*params), GFP_KERNEL);
- if (!params) {
- err = -ENOMEM;
- goto out;
- }
- if (copy_from_user(params, _params, sizeof(*params))) {
- err = -EFAULT;
- goto out;
- }
+ params = memdup_user(_params, sizeof(*params));
+ if (IS_ERR(params))
+ return PTR_ERR(params);
+
err = snd_pcm_hw_refine(substream, params);
if (copy_to_user(_params, params, sizeof(*params))) {
if (!err)
err = -EFAULT;
}
-out:
+
kfree(params);
return err;
}
+static int period_to_usecs(struct snd_pcm_runtime *runtime)
+{
+ int usecs;
+
+ if (! runtime->rate)
+ return -1; /* invalid */
+
+ /* take 75% of period time as the deadline */
+ usecs = (750000 / runtime->rate) * runtime->period_size;
+ usecs += ((750000 % runtime->rate) * runtime->period_size) /
+ runtime->rate;
+
+ return usecs;
+}
+
+static void snd_pcm_set_state(struct snd_pcm_substream *substream, int state)
+{
+ snd_pcm_stream_lock_irq(substream);
+ if (substream->runtime->status->state != SNDRV_PCM_STATE_DISCONNECTED)
+ substream->runtime->status->state = state;
+ snd_pcm_stream_unlock_irq(substream);
+}
+
static int snd_pcm_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_pcm_runtime *runtime;
- int err;
+ int err, usecs;
unsigned int bits;
snd_pcm_uframes_t frames;
- snd_assert(substream != NULL, return -ENXIO);
+ if (PCM_RUNTIME_CHECK(substream))
+ return -ENXIO;
runtime = substream->runtime;
- snd_assert(runtime != NULL, return -ENXIO);
snd_pcm_stream_lock_irq(substream);
switch (runtime->status->state) {
case SNDRV_PCM_STATE_OPEN:
@@ -366,10 +399,10 @@ static int snd_pcm_hw_params(struct snd_pcm_substream *substream,
return -EBADFD;
}
snd_pcm_stream_unlock_irq(substream);
-#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE)
+#if IS_ENABLED(CONFIG_SND_PCM_OSS)
if (!substream->oss.oss)
#endif
- if (atomic_read(&runtime->mmap_count))
+ if (atomic_read(&substream->mmap_count))
return -EBADFD;
params->rmask = ~0U;
@@ -395,10 +428,12 @@ static int snd_pcm_hw_params(struct snd_pcm_substream *substream,
runtime->period_size = params_period_size(params);
runtime->periods = params_periods(params);
runtime->buffer_size = params_buffer_size(params);
- runtime->tick_time = params_tick_time(params);
runtime->info = params->info;
runtime->rate_num = params->rate_num;
runtime->rate_den = params->rate_den;
+ runtime->no_period_wakeup =
+ (params->info & SNDRV_PCM_INFO_NO_PERIOD_WAKEUP) &&
+ (params->flags & SNDRV_PCM_HW_PARAMS_NO_PERIOD_WAKEUP);
bits = snd_pcm_format_physical_width(runtime->format);
runtime->sample_bits = bits;
@@ -415,9 +450,7 @@ static int snd_pcm_hw_params(struct snd_pcm_substream *substream,
/* Default sw params */
runtime->tstamp_mode = SNDRV_PCM_TSTAMP_NONE;
runtime->period_step = 1;
- runtime->sleep_min = 0;
runtime->control->avail_min = runtime->period_size;
- runtime->xfer_align = runtime->period_size;
runtime->start_threshold = 1;
runtime->stop_threshold = runtime->buffer_size;
runtime->silence_threshold = 0;
@@ -427,13 +460,19 @@ static int snd_pcm_hw_params(struct snd_pcm_substream *substream,
runtime->boundary *= 2;
snd_pcm_timer_resolution_change(substream);
- runtime->status->state = SNDRV_PCM_STATE_SETUP;
+ snd_pcm_set_state(substream, SNDRV_PCM_STATE_SETUP);
+
+ if (pm_qos_request_active(&substream->latency_pm_qos_req))
+ pm_qos_remove_request(&substream->latency_pm_qos_req);
+ if ((usecs = period_to_usecs(runtime)) >= 0)
+ pm_qos_add_request(&substream->latency_pm_qos_req,
+ PM_QOS_CPU_DMA_LATENCY, usecs);
return 0;
_error:
- /* hardware might be unuseable from this time,
+ /* hardware might be unusable from this time,
so we force application to retry to set
the correct hardware parameter settings */
- runtime->status->state = SNDRV_PCM_STATE_OPEN;
+ snd_pcm_set_state(substream, SNDRV_PCM_STATE_OPEN);
if (substream->ops->hw_free != NULL)
substream->ops->hw_free(substream);
return err;
@@ -445,21 +484,16 @@ static int snd_pcm_hw_params_user(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params;
int err;
- params = kmalloc(sizeof(*params), GFP_KERNEL);
- if (!params) {
- err = -ENOMEM;
- goto out;
- }
- if (copy_from_user(params, _params, sizeof(*params))) {
- err = -EFAULT;
- goto out;
- }
+ params = memdup_user(_params, sizeof(*params));
+ if (IS_ERR(params))
+ return PTR_ERR(params);
+
err = snd_pcm_hw_params(substream, params);
if (copy_to_user(_params, params, sizeof(*params))) {
if (!err)
err = -EFAULT;
}
-out:
+
kfree(params);
return err;
}
@@ -469,9 +503,9 @@ static int snd_pcm_hw_free(struct snd_pcm_substream *substream)
struct snd_pcm_runtime *runtime;
int result = 0;
- snd_assert(substream != NULL, return -ENXIO);
+ if (PCM_RUNTIME_CHECK(substream))
+ return -ENXIO;
runtime = substream->runtime;
- snd_assert(runtime != NULL, return -ENXIO);
snd_pcm_stream_lock_irq(substream);
switch (runtime->status->state) {
case SNDRV_PCM_STATE_SETUP:
@@ -482,11 +516,12 @@ static int snd_pcm_hw_free(struct snd_pcm_substream *substream)
return -EBADFD;
}
snd_pcm_stream_unlock_irq(substream);
- if (atomic_read(&runtime->mmap_count))
+ if (atomic_read(&substream->mmap_count))
return -EBADFD;
if (substream->ops->hw_free)
result = substream->ops->hw_free(substream);
- runtime->status->state = SNDRV_PCM_STATE_OPEN;
+ snd_pcm_set_state(substream, SNDRV_PCM_STATE_OPEN);
+ pm_qos_remove_request(&substream->latency_pm_qos_req);
return result;
}
@@ -494,10 +529,11 @@ static int snd_pcm_sw_params(struct snd_pcm_substream *substream,
struct snd_pcm_sw_params *params)
{
struct snd_pcm_runtime *runtime;
+ int err;
- snd_assert(substream != NULL, return -ENXIO);
+ if (PCM_RUNTIME_CHECK(substream))
+ return -ENXIO;
runtime = substream->runtime;
- snd_assert(runtime != NULL, return -ENXIO);
snd_pcm_stream_lock_irq(substream);
if (runtime->status->state == SNDRV_PCM_STATE_OPEN) {
snd_pcm_stream_unlock_irq(substream);
@@ -509,9 +545,6 @@ static int snd_pcm_sw_params(struct snd_pcm_substream *substream,
return -EINVAL;
if (params->avail_min == 0)
return -EINVAL;
- if (params->xfer_align == 0 ||
- params->xfer_align % runtime->min_align != 0)
- return -EINVAL;
if (params->silence_size >= runtime->boundary) {
if (params->silence_threshold != 0)
return -EINVAL;
@@ -521,29 +554,24 @@ static int snd_pcm_sw_params(struct snd_pcm_substream *substream,
if (params->silence_threshold > runtime->buffer_size)
return -EINVAL;
}
+ err = 0;
snd_pcm_stream_lock_irq(substream);
runtime->tstamp_mode = params->tstamp_mode;
- runtime->sleep_min = params->sleep_min;
runtime->period_step = params->period_step;
runtime->control->avail_min = params->avail_min;
runtime->start_threshold = params->start_threshold;
runtime->stop_threshold = params->stop_threshold;
runtime->silence_threshold = params->silence_threshold;
runtime->silence_size = params->silence_size;
- runtime->xfer_align = params->xfer_align;
params->boundary = runtime->boundary;
if (snd_pcm_running(substream)) {
- if (runtime->sleep_min)
- snd_pcm_tick_prepare(substream);
- else
- snd_pcm_tick_set(substream, 0);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK &&
runtime->silence_size > 0)
snd_pcm_playback_silence(substream, ULONG_MAX);
- wake_up(&runtime->sleep);
+ err = snd_pcm_update_state(substream, runtime);
}
snd_pcm_stream_unlock_irq(substream);
- return 0;
+ return err;
}
static int snd_pcm_sw_params_user(struct snd_pcm_substream *substream,
@@ -572,25 +600,29 @@ int snd_pcm_status(struct snd_pcm_substream *substream,
status->trigger_tstamp = runtime->trigger_tstamp;
if (snd_pcm_running(substream)) {
snd_pcm_update_hw_ptr(substream);
- if (runtime->tstamp_mode & SNDRV_PCM_TSTAMP_MMAP)
+ if (runtime->tstamp_mode == SNDRV_PCM_TSTAMP_ENABLE) {
status->tstamp = runtime->status->tstamp;
- else
- getnstimeofday(&status->tstamp);
- } else
- getnstimeofday(&status->tstamp);
+ status->audio_tstamp =
+ runtime->status->audio_tstamp;
+ goto _tstamp_end;
+ }
+ }
+ snd_pcm_gettime(runtime, &status->tstamp);
+ _tstamp_end:
status->appl_ptr = runtime->control->appl_ptr;
status->hw_ptr = runtime->status->hw_ptr;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
status->avail = snd_pcm_playback_avail(runtime);
if (runtime->status->state == SNDRV_PCM_STATE_RUNNING ||
- runtime->status->state == SNDRV_PCM_STATE_DRAINING)
+ runtime->status->state == SNDRV_PCM_STATE_DRAINING) {
status->delay = runtime->buffer_size - status->avail;
- else
+ status->delay += runtime->delay;
+ } else
status->delay = 0;
} else {
status->avail = snd_pcm_capture_avail(runtime);
if (runtime->status->state == SNDRV_PCM_STATE_RUNNING)
- status->delay = status->avail;
+ status->delay = status->avail + runtime->delay;
else
status->delay = 0;
}
@@ -607,11 +639,8 @@ static int snd_pcm_status_user(struct snd_pcm_substream *substream,
struct snd_pcm_status __user * _status)
{
struct snd_pcm_status status;
- struct snd_pcm_runtime *runtime;
int res;
- snd_assert(substream != NULL, return -ENXIO);
- runtime = substream->runtime;
memset(&status, 0, sizeof(status));
res = snd_pcm_status(substream, &status);
if (res < 0)
@@ -627,7 +656,6 @@ static int snd_pcm_channel_info(struct snd_pcm_substream *substream,
struct snd_pcm_runtime *runtime;
unsigned int channel;
- snd_assert(substream != NULL, return -ENXIO);
channel = info->channel;
runtime = substream->runtime;
snd_pcm_stream_lock_irq(substream);
@@ -665,7 +693,7 @@ static void snd_pcm_trigger_tstamp(struct snd_pcm_substream *substream)
if (runtime->trigger_master == NULL)
return;
if (runtime->trigger_master == substream) {
- getnstimeofday(&runtime->trigger_tstamp);
+ snd_pcm_gettime(runtime, &runtime->trigger_tstamp);
} else {
snd_pcm_trigger_tstamp(runtime->trigger_master);
runtime->trigger_tstamp = runtime->trigger_master->runtime->trigger_tstamp;
@@ -689,26 +717,23 @@ static int snd_pcm_action_group(struct action_ops *ops,
struct snd_pcm_substream *substream,
int state, int do_lock)
{
- struct list_head *pos;
struct snd_pcm_substream *s = NULL;
struct snd_pcm_substream *s1;
int res = 0;
- snd_pcm_group_for_each(pos, substream) {
- s = snd_pcm_group_substream_entry(pos);
+ snd_pcm_group_for_each_entry(s, substream) {
if (do_lock && s != substream)
- spin_lock(&s->self_group.lock);
+ spin_lock_nested(&s->self_group.lock,
+ SINGLE_DEPTH_NESTING);
res = ops->pre_action(s, state);
if (res < 0)
goto _unlock;
}
- snd_pcm_group_for_each(pos, substream) {
- s = snd_pcm_group_substream_entry(pos);
+ snd_pcm_group_for_each_entry(s, substream) {
res = ops->do_action(s, state);
if (res < 0) {
if (ops->undo_action) {
- snd_pcm_group_for_each(pos, substream) {
- s1 = snd_pcm_group_substream_entry(pos);
+ snd_pcm_group_for_each_entry(s1, substream) {
if (s1 == s) /* failed stream */
break;
ops->undo_action(s1, state);
@@ -718,15 +743,13 @@ static int snd_pcm_action_group(struct action_ops *ops,
goto _unlock;
}
}
- snd_pcm_group_for_each(pos, substream) {
- s = snd_pcm_group_substream_entry(pos);
+ snd_pcm_group_for_each_entry(s, substream) {
ops->post_action(s, state);
}
_unlock:
if (do_lock) {
/* unlock streams */
- snd_pcm_group_for_each(pos, substream) {
- s1 = snd_pcm_group_substream_entry(pos);
+ snd_pcm_group_for_each_entry(s1, substream) {
if (s1 != substream)
spin_unlock(&s1->self_group.lock);
if (s1 == s) /* end */
@@ -853,12 +876,13 @@ static void snd_pcm_post_start(struct snd_pcm_substream *substream, int state)
{
struct snd_pcm_runtime *runtime = substream->runtime;
snd_pcm_trigger_tstamp(substream);
+ runtime->hw_ptr_jiffies = jiffies;
+ runtime->hw_ptr_buffer_jiffies = (runtime->buffer_size * HZ) /
+ runtime->rate;
runtime->status->state = state;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK &&
runtime->silence_size > 0)
snd_pcm_playback_silence(substream, ULONG_MAX);
- if (runtime->sleep_min)
- snd_pcm_tick_prepare(substream);
if (substream->timer)
snd_timer_notify(substream->timer, SNDRV_TIMER_EVENT_MSTART,
&runtime->trigger_tstamp);
@@ -872,10 +896,10 @@ static struct action_ops snd_pcm_action_start = {
};
/**
- * snd_pcm_start
+ * snd_pcm_start - start all linked streams
* @substream: the PCM substream instance
*
- * Start all linked streams.
+ * Return: Zero if successful, or a negative error code.
*/
int snd_pcm_start(struct snd_pcm_substream *substream)
{
@@ -912,9 +936,9 @@ static void snd_pcm_post_stop(struct snd_pcm_substream *substream, int state)
snd_timer_notify(substream->timer, SNDRV_TIMER_EVENT_MSTOP,
&runtime->trigger_tstamp);
runtime->status->state = state;
- snd_pcm_tick_set(substream, 0);
}
wake_up(&runtime->sleep);
+ wake_up(&runtime->tsleep);
}
static struct action_ops snd_pcm_action_stop = {
@@ -924,25 +948,29 @@ static struct action_ops snd_pcm_action_stop = {
};
/**
- * snd_pcm_stop
+ * snd_pcm_stop - try to stop all running streams in the substream group
* @substream: the PCM substream instance
* @state: PCM state after stopping the stream
*
- * Try to stop all running streams in the substream group.
- * The state of each stream is changed to the given value after that unconditionally.
+ * The state of each stream is then changed to the given state unconditionally.
+ *
+ * Return: Zero if successful, or a negative error code.
*/
-int snd_pcm_stop(struct snd_pcm_substream *substream, int state)
+int snd_pcm_stop(struct snd_pcm_substream *substream, snd_pcm_state_t state)
{
return snd_pcm_action(&snd_pcm_action_stop, substream, state);
}
+EXPORT_SYMBOL(snd_pcm_stop);
+
/**
- * snd_pcm_drain_done
+ * snd_pcm_drain_done - stop the DMA only when the given stream is playback
* @substream: the PCM substream
*
- * Stop the DMA only when the given stream is playback.
- * The state is changed to SETUP.
+ * After stopping, the state is changed to SETUP.
* Unlike snd_pcm_stop(), this affects only the given stream.
+ *
+ * Return: Zero if succesful, or a negative error code.
*/
int snd_pcm_drain_done(struct snd_pcm_substream *substream)
{
@@ -971,6 +999,15 @@ static int snd_pcm_do_pause(struct snd_pcm_substream *substream, int push)
{
if (substream->runtime->trigger_master != substream)
return 0;
+ /* some drivers might use hw_ptr to recover from the pause -
+ update the hw_ptr now */
+ if (push)
+ snd_pcm_update_hw_ptr(substream);
+ /* The jiffies check in snd_pcm_update_hw_ptr*() is done by
+ * a delta between the current jiffies, this gives a large enough
+ * delta, effectively to skip the check once.
+ */
+ substream->runtime->hw_ptr_jiffies = jiffies - HZ * 1000;
return substream->ops->trigger(substream,
push ? SNDRV_PCM_TRIGGER_PAUSE_PUSH :
SNDRV_PCM_TRIGGER_PAUSE_RELEASE);
@@ -994,12 +1031,10 @@ static void snd_pcm_post_pause(struct snd_pcm_substream *substream, int push)
snd_timer_notify(substream->timer,
SNDRV_TIMER_EVENT_MPAUSE,
&runtime->trigger_tstamp);
- snd_pcm_tick_set(substream, 0);
wake_up(&runtime->sleep);
+ wake_up(&runtime->tsleep);
} else {
runtime->status->state = SNDRV_PCM_STATE_RUNNING;
- if (runtime->sleep_min)
- snd_pcm_tick_prepare(substream);
if (substream->timer)
snd_timer_notify(substream->timer,
SNDRV_TIMER_EVENT_MCONTINUE,
@@ -1054,8 +1089,8 @@ static void snd_pcm_post_suspend(struct snd_pcm_substream *substream, int state)
&runtime->trigger_tstamp);
runtime->status->suspended_state = runtime->status->state;
runtime->status->state = SNDRV_PCM_STATE_SUSPENDED;
- snd_pcm_tick_set(substream, 0);
wake_up(&runtime->sleep);
+ wake_up(&runtime->tsleep);
}
static struct action_ops snd_pcm_action_suspend = {
@@ -1065,11 +1100,13 @@ static struct action_ops snd_pcm_action_suspend = {
};
/**
- * snd_pcm_suspend
+ * snd_pcm_suspend - trigger SUSPEND to all linked streams
* @substream: the PCM substream
*
- * Trigger SUSPEND to all linked streams.
* After this call, all streams are changed to SUSPENDED state.
+ *
+ * Return: Zero if successful (or @substream is %NULL), or a negative error
+ * code.
*/
int snd_pcm_suspend(struct snd_pcm_substream *substream)
{
@@ -1085,12 +1122,15 @@ int snd_pcm_suspend(struct snd_pcm_substream *substream)
return err;
}
+EXPORT_SYMBOL(snd_pcm_suspend);
+
/**
- * snd_pcm_suspend_all
+ * snd_pcm_suspend_all - trigger SUSPEND to all substreams in the given pcm
* @pcm: the PCM instance
*
- * Trigger SUSPEND to all substreams in the given pcm.
* After this call, all streams are changed to SUSPENDED state.
+ *
+ * Return: Zero if successful (or @pcm is %NULL), or a negative error code.
*/
int snd_pcm_suspend_all(struct snd_pcm *pcm)
{
@@ -1114,6 +1154,8 @@ int snd_pcm_suspend_all(struct snd_pcm *pcm)
return 0;
}
+EXPORT_SYMBOL(snd_pcm_suspend_all);
+
/* resume */
static int snd_pcm_pre_resume(struct snd_pcm_substream *substream, int state)
@@ -1153,8 +1195,6 @@ static void snd_pcm_post_resume(struct snd_pcm_substream *substream, int state)
snd_timer_notify(substream->timer, SNDRV_TIMER_EVENT_MRESUME,
&runtime->trigger_tstamp);
runtime->status->state = runtime->status->suspended_state;
- if (runtime->sleep_min)
- snd_pcm_tick_prepare(substream);
}
static struct action_ops snd_pcm_action_resume = {
@@ -1170,7 +1210,7 @@ static int snd_pcm_resume(struct snd_pcm_substream *substream)
int res;
snd_power_lock(card);
- if ((res = snd_power_wait(card, SNDRV_CTL_POWER_D0, substream->ffile)) >= 0)
+ if ((res = snd_power_wait(card, SNDRV_CTL_POWER_D0)) >= 0)
res = snd_pcm_action_lock_irq(&snd_pcm_action_resume, substream, 0);
snd_power_unlock(card);
return res;
@@ -1198,7 +1238,7 @@ static int snd_pcm_xrun(struct snd_pcm_substream *substream)
snd_power_lock(card);
if (runtime->status->state == SNDRV_PCM_STATE_SUSPENDED) {
- result = snd_power_wait(card, SNDRV_CTL_POWER_D0, substream->ffile);
+ result = snd_power_wait(card, SNDRV_CTL_POWER_D0);
if (result < 0)
goto _unlock;
}
@@ -1243,7 +1283,6 @@ static int snd_pcm_do_reset(struct snd_pcm_substream *substream, int state)
int err = substream->ops->ioctl(substream, SNDRV_PCM_IOCTL1_RESET, NULL);
if (err < 0)
return err;
- // snd_assert(runtime->status->hw_ptr < runtime->buffer_size, );
runtime->hw_ptr_base = 0;
runtime->hw_ptr_interrupt = runtime->status->hw_ptr -
runtime->status->hw_ptr % runtime->period_size;
@@ -1275,13 +1314,17 @@ static int snd_pcm_reset(struct snd_pcm_substream *substream)
/*
* prepare ioctl
*/
-static int snd_pcm_pre_prepare(struct snd_pcm_substream *substream, int state)
+/* we use the second argument for updating f_flags */
+static int snd_pcm_pre_prepare(struct snd_pcm_substream *substream,
+ int f_flags)
{
struct snd_pcm_runtime *runtime = substream->runtime;
- if (runtime->status->state == SNDRV_PCM_STATE_OPEN)
+ if (runtime->status->state == SNDRV_PCM_STATE_OPEN ||
+ runtime->status->state == SNDRV_PCM_STATE_DISCONNECTED)
return -EBADFD;
if (snd_pcm_running(substream))
return -EBUSY;
+ substream->f_flags = f_flags;
return 0;
}
@@ -1298,7 +1341,7 @@ static void snd_pcm_post_prepare(struct snd_pcm_substream *substream, int state)
{
struct snd_pcm_runtime *runtime = substream->runtime;
runtime->control->appl_ptr = runtime->status->hw_ptr;
- runtime->status->state = SNDRV_PCM_STATE_PREPARED;
+ snd_pcm_set_state(substream, SNDRV_PCM_STATE_PREPARED);
}
static struct action_ops snd_pcm_action_prepare = {
@@ -1308,19 +1351,28 @@ static struct action_ops snd_pcm_action_prepare = {
};
/**
- * snd_pcm_prepare
+ * snd_pcm_prepare - prepare the PCM substream to be triggerable
* @substream: the PCM substream instance
+ * @file: file to refer f_flags
*
- * Prepare the PCM substream to be triggerable.
+ * Return: Zero if successful, or a negative error code.
*/
-int snd_pcm_prepare(struct snd_pcm_substream *substream)
+static int snd_pcm_prepare(struct snd_pcm_substream *substream,
+ struct file *file)
{
int res;
struct snd_card *card = substream->pcm->card;
+ int f_flags;
+
+ if (file)
+ f_flags = file->f_flags;
+ else
+ f_flags = substream->f_flags;
snd_power_lock(card);
- if ((res = snd_power_wait(card, SNDRV_CTL_POWER_D0, substream->ffile)) >= 0)
- res = snd_pcm_action_nonatomic(&snd_pcm_action_prepare, substream, 0);
+ if ((res = snd_power_wait(card, SNDRV_CTL_POWER_D0)) >= 0)
+ res = snd_pcm_action_nonatomic(&snd_pcm_action_prepare,
+ substream, f_flags);
snd_power_unlock(card);
return res;
}
@@ -1331,9 +1383,14 @@ int snd_pcm_prepare(struct snd_pcm_substream *substream)
static int snd_pcm_pre_drain_init(struct snd_pcm_substream *substream, int state)
{
- if (substream->ffile->f_flags & O_NONBLOCK)
- return -EAGAIN;
- substream->runtime->trigger_master = substream;
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ switch (runtime->status->state) {
+ case SNDRV_PCM_STATE_OPEN:
+ case SNDRV_PCM_STATE_DISCONNECTED:
+ case SNDRV_PCM_STATE_SUSPENDED:
+ return -EBADFD;
+ }
+ runtime->trigger_master = substream;
return 0;
}
@@ -1352,16 +1409,19 @@ static int snd_pcm_do_drain_init(struct snd_pcm_substream *substream, int state)
case SNDRV_PCM_STATE_RUNNING:
runtime->status->state = SNDRV_PCM_STATE_DRAINING;
break;
+ case SNDRV_PCM_STATE_XRUN:
+ runtime->status->state = SNDRV_PCM_STATE_SETUP;
+ break;
default:
break;
}
} else {
/* stop running stream */
if (runtime->status->state == SNDRV_PCM_STATE_RUNNING) {
- int state = snd_pcm_capture_avail(runtime) > 0 ?
+ int new_state = snd_pcm_capture_avail(runtime) > 0 ?
SNDRV_PCM_STATE_DRAINING : SNDRV_PCM_STATE_SETUP;
- snd_pcm_do_stop(substream, state);
- snd_pcm_post_stop(substream, state);
+ snd_pcm_do_stop(substream, new_state);
+ snd_pcm_post_stop(substream, new_state);
}
}
return 0;
@@ -1377,12 +1437,6 @@ static struct action_ops snd_pcm_action_drain_init = {
.post_action = snd_pcm_post_drain_init
};
-struct drain_rec {
- struct snd_pcm_substream *substream;
- wait_queue_t wait;
- snd_pcm_uframes_t stop_threshold;
-};
-
static int snd_pcm_drop(struct snd_pcm_substream *substream);
/*
@@ -1392,16 +1446,16 @@ static int snd_pcm_drop(struct snd_pcm_substream *substream);
* After this call, all streams are supposed to be either SETUP or DRAINING
* (capture only) state.
*/
-static int snd_pcm_drain(struct snd_pcm_substream *substream)
+static int snd_pcm_drain(struct snd_pcm_substream *substream,
+ struct file *file)
{
struct snd_card *card;
struct snd_pcm_runtime *runtime;
- struct list_head *pos;
+ struct snd_pcm_substream *s;
+ wait_queue_t wait;
int result = 0;
- int i, num_drecs;
- struct drain_rec *drec, drec_tmp, *d;
+ int nonblock = 0;
- snd_assert(substream != NULL, return -ENXIO);
card = substream->pcm->card;
runtime = substream->runtime;
@@ -1410,47 +1464,20 @@ static int snd_pcm_drain(struct snd_pcm_substream *substream)
snd_power_lock(card);
if (runtime->status->state == SNDRV_PCM_STATE_SUSPENDED) {
- result = snd_power_wait(card, SNDRV_CTL_POWER_D0, substream->ffile);
+ result = snd_power_wait(card, SNDRV_CTL_POWER_D0);
if (result < 0) {
snd_power_unlock(card);
return result;
}
}
- /* allocate temporary record for drain sync */
- down_read(&snd_pcm_link_rwsem);
- if (snd_pcm_stream_linked(substream)) {
- drec = kmalloc(substream->group->count * sizeof(*drec), GFP_KERNEL);
- if (! drec) {
- up_read(&snd_pcm_link_rwsem);
- snd_power_unlock(card);
- return -ENOMEM;
- }
- } else
- drec = &drec_tmp;
-
- /* count only playback streams */
- num_drecs = 0;
- snd_pcm_group_for_each(pos, substream) {
- struct snd_pcm_substream *s = snd_pcm_group_substream_entry(pos);
- runtime = s->runtime;
- if (s->stream == SNDRV_PCM_STREAM_PLAYBACK) {
- d = &drec[num_drecs++];
- d->substream = s;
- init_waitqueue_entry(&d->wait, current);
- add_wait_queue(&runtime->sleep, &d->wait);
- /* stop_threshold fixup to avoid endless loop when
- * stop_threshold > buffer_size
- */
- d->stop_threshold = runtime->stop_threshold;
- if (runtime->stop_threshold > runtime->buffer_size)
- runtime->stop_threshold = runtime->buffer_size;
- }
- }
- up_read(&snd_pcm_link_rwsem);
- if (! num_drecs)
- goto _error;
+ if (file) {
+ if (file->f_flags & O_NONBLOCK)
+ nonblock = 1;
+ } else if (substream->f_flags & O_NONBLOCK)
+ nonblock = 1;
+ down_read(&snd_pcm_link_rwsem);
snd_pcm_stream_lock_irq(substream);
/* resume pause */
if (runtime->status->state == SNDRV_PCM_STATE_PAUSED)
@@ -1458,37 +1485,64 @@ static int snd_pcm_drain(struct snd_pcm_substream *substream)
/* pre-start/stop - all running streams are changed to DRAINING state */
result = snd_pcm_action(&snd_pcm_action_drain_init, substream, 0);
- if (result < 0) {
- snd_pcm_stream_unlock_irq(substream);
- goto _error;
+ if (result < 0)
+ goto unlock;
+ /* in non-blocking, we don't wait in ioctl but let caller poll */
+ if (nonblock) {
+ result = -EAGAIN;
+ goto unlock;
}
for (;;) {
long tout;
+ struct snd_pcm_runtime *to_check;
if (signal_pending(current)) {
result = -ERESTARTSYS;
break;
}
- /* all finished? */
- for (i = 0; i < num_drecs; i++) {
- runtime = drec[i].substream->runtime;
- if (runtime->status->state == SNDRV_PCM_STATE_DRAINING)
+ /* find a substream to drain */
+ to_check = NULL;
+ snd_pcm_group_for_each_entry(s, substream) {
+ if (s->stream != SNDRV_PCM_STREAM_PLAYBACK)
+ continue;
+ runtime = s->runtime;
+ if (runtime->status->state == SNDRV_PCM_STATE_DRAINING) {
+ to_check = runtime;
break;
+ }
}
- if (i == num_drecs)
- break; /* yes, all drained */
-
- set_current_state(TASK_INTERRUPTIBLE);
+ if (!to_check)
+ break; /* all drained */
+ init_waitqueue_entry(&wait, current);
+ add_wait_queue(&to_check->sleep, &wait);
snd_pcm_stream_unlock_irq(substream);
+ up_read(&snd_pcm_link_rwsem);
snd_power_unlock(card);
- tout = schedule_timeout(10 * HZ);
+ if (runtime->no_period_wakeup)
+ tout = MAX_SCHEDULE_TIMEOUT;
+ else {
+ tout = 10;
+ if (runtime->rate) {
+ long t = runtime->period_size * 2 / runtime->rate;
+ tout = max(t, tout);
+ }
+ tout = msecs_to_jiffies(tout * 1000);
+ }
+ tout = schedule_timeout_interruptible(tout);
snd_power_lock(card);
+ down_read(&snd_pcm_link_rwsem);
snd_pcm_stream_lock_irq(substream);
+ remove_wait_queue(&to_check->sleep, &wait);
+ if (card->shutdown) {
+ result = -ENODEV;
+ break;
+ }
if (tout == 0) {
if (substream->runtime->status->state == SNDRV_PCM_STATE_SUSPENDED)
result = -ESTRPIPE;
else {
- snd_printd("playback drain error (DMA or IRQ trouble?)\n");
+ dev_dbg(substream->pcm->card->dev,
+ "playback drain error (DMA or IRQ trouble?)\n");
snd_pcm_stop(substream, SNDRV_PCM_STATE_SETUP);
result = -EIO;
}
@@ -1496,18 +1550,9 @@ static int snd_pcm_drain(struct snd_pcm_substream *substream)
}
}
+ unlock:
snd_pcm_stream_unlock_irq(substream);
-
- _error:
- for (i = 0; i < num_drecs; i++) {
- d = &drec[i];
- runtime = d->substream->runtime;
- remove_wait_queue(&runtime->sleep, &d->wait);
- runtime->stop_threshold = d->stop_threshold;
- }
-
- if (drec != &drec_tmp)
- kfree(drec);
+ up_read(&snd_pcm_link_rwsem);
snd_power_unlock(card);
return result;
@@ -1521,23 +1566,17 @@ static int snd_pcm_drain(struct snd_pcm_substream *substream)
static int snd_pcm_drop(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime;
- struct snd_card *card;
int result = 0;
- snd_assert(substream != NULL, return -ENXIO);
+ if (PCM_RUNTIME_CHECK(substream))
+ return -ENXIO;
runtime = substream->runtime;
- card = substream->pcm->card;
- if (runtime->status->state == SNDRV_PCM_STATE_OPEN)
+ if (runtime->status->state == SNDRV_PCM_STATE_OPEN ||
+ runtime->status->state == SNDRV_PCM_STATE_DISCONNECTED ||
+ runtime->status->state == SNDRV_PCM_STATE_SUSPENDED)
return -EBADFD;
- snd_power_lock(card);
- if (runtime->status->state == SNDRV_PCM_STATE_SUSPENDED) {
- result = snd_power_wait(card, SNDRV_CTL_POWER_D0, substream->ffile);
- if (result < 0)
- goto _unlock;
- }
-
snd_pcm_stream_lock_irq(substream);
/* resume pause */
if (runtime->status->state == SNDRV_PCM_STATE_PAUSED)
@@ -1546,35 +1585,21 @@ static int snd_pcm_drop(struct snd_pcm_substream *substream)
snd_pcm_stop(substream, SNDRV_PCM_STATE_SETUP);
/* runtime->control->appl_ptr = runtime->status->hw_ptr; */
snd_pcm_stream_unlock_irq(substream);
- _unlock:
- snd_power_unlock(card);
+
return result;
}
-/* WARNING: Don't forget to fput back the file */
-static struct file *snd_pcm_file_fd(int fd)
+static bool is_pcm_file(struct file *file)
{
- struct file *file;
- struct inode *inode;
+ struct inode *inode = file_inode(file);
unsigned int minor;
- file = fget(fd);
- if (!file)
- return NULL;
- inode = file->f_dentry->d_inode;
- if (!S_ISCHR(inode->i_mode) ||
- imajor(inode) != snd_major) {
- fput(file);
- return NULL;
- }
+ if (!S_ISCHR(inode->i_mode) || imajor(inode) != snd_major)
+ return false;
minor = iminor(inode);
- if (!snd_lookup_minor_data(minor, SNDRV_DEVICE_TYPE_PCM_PLAYBACK) &&
- !snd_lookup_minor_data(minor, SNDRV_DEVICE_TYPE_PCM_CAPTURE)) {
- fput(file);
- return NULL;
- }
- return file;
+ return snd_lookup_minor_data(minor, SNDRV_DEVICE_TYPE_PCM_PLAYBACK) ||
+ snd_lookup_minor_data(minor, SNDRV_DEVICE_TYPE_PCM_CAPTURE);
}
/*
@@ -1583,15 +1608,24 @@ static struct file *snd_pcm_file_fd(int fd)
static int snd_pcm_link(struct snd_pcm_substream *substream, int fd)
{
int res = 0;
- struct file *file;
struct snd_pcm_file *pcm_file;
struct snd_pcm_substream *substream1;
+ struct snd_pcm_group *group;
+ struct fd f = fdget(fd);
- file = snd_pcm_file_fd(fd);
- if (!file)
+ if (!f.file)
return -EBADFD;
- pcm_file = file->private_data;
+ if (!is_pcm_file(f.file)) {
+ res = -EBADFD;
+ goto _badf;
+ }
+ pcm_file = f.file->private_data;
substream1 = pcm_file->substream;
+ group = kmalloc(sizeof(*group), GFP_KERNEL);
+ if (!group) {
+ res = -ENOMEM;
+ goto _nolock;
+ }
down_write(&snd_pcm_link_rwsem);
write_lock_irq(&snd_pcm_link_rwlock);
if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN ||
@@ -1604,11 +1638,8 @@ static int snd_pcm_link(struct snd_pcm_substream *substream, int fd)
goto _end;
}
if (!snd_pcm_stream_linked(substream)) {
- substream->group = kmalloc(sizeof(struct snd_pcm_group), GFP_ATOMIC);
- if (substream->group == NULL) {
- res = -ENOMEM;
- goto _end;
- }
+ substream->group = group;
+ group = NULL;
spin_lock_init(&substream->group->lock);
INIT_LIST_HEAD(&substream->group->substreams);
list_add_tail(&substream->link_list, &substream->group->substreams);
@@ -1620,7 +1651,11 @@ static int snd_pcm_link(struct snd_pcm_substream *substream, int fd)
_end:
write_unlock_irq(&snd_pcm_link_rwlock);
up_write(&snd_pcm_link_rwsem);
- fput(file);
+ _nolock:
+ snd_card_unref(substream1->pcm->card);
+ kfree(group);
+ _badf:
+ fdput(f);
return res;
}
@@ -1633,7 +1668,7 @@ static void relink_to_local(struct snd_pcm_substream *substream)
static int snd_pcm_unlink(struct snd_pcm_substream *substream)
{
- struct list_head *pos;
+ struct snd_pcm_substream *s;
int res = 0;
down_write(&snd_pcm_link_rwsem);
@@ -1645,8 +1680,8 @@ static int snd_pcm_unlink(struct snd_pcm_substream *substream)
list_del(&substream->link_list);
substream->group->count--;
if (substream->group->count == 1) { /* detach the last stream, too */
- snd_pcm_group_for_each(pos, substream) {
- relink_to_local(snd_pcm_group_substream_entry(pos));
+ snd_pcm_group_for_each_entry(s, substream) {
+ relink_to_local(s);
break;
}
kfree(substream->group);
@@ -1752,12 +1787,18 @@ static int snd_pcm_hw_rule_sample_bits(struct snd_pcm_hw_params *params,
static unsigned int rates[] = { 5512, 8000, 11025, 16000, 22050, 32000, 44100,
48000, 64000, 88200, 96000, 176400, 192000 };
+const struct snd_pcm_hw_constraint_list snd_pcm_known_rates = {
+ .count = ARRAY_SIZE(rates),
+ .list = rates,
+};
+
static int snd_pcm_hw_rule_rate(struct snd_pcm_hw_params *params,
struct snd_pcm_hw_rule *rule)
{
struct snd_pcm_hardware *hw = rule->private;
return snd_interval_list(hw_param_interval(params, rule->var),
- ARRAY_SIZE(rates), rates, hw->rates);
+ snd_pcm_known_rates.count,
+ snd_pcm_known_rates.list, hw->rates);
}
static int snd_pcm_hw_rule_buffer_bytes_max(struct snd_pcm_hw_params *params,
@@ -1917,33 +1958,41 @@ int snd_pcm_hw_constraints_complete(struct snd_pcm_substream *substream)
mask |= 1 << SNDRV_PCM_ACCESS_MMAP_COMPLEX;
}
err = snd_pcm_hw_constraint_mask(runtime, SNDRV_PCM_HW_PARAM_ACCESS, mask);
- snd_assert(err >= 0, return -EINVAL);
+ if (err < 0)
+ return err;
err = snd_pcm_hw_constraint_mask64(runtime, SNDRV_PCM_HW_PARAM_FORMAT, hw->formats);
- snd_assert(err >= 0, return -EINVAL);
+ if (err < 0)
+ return err;
err = snd_pcm_hw_constraint_mask(runtime, SNDRV_PCM_HW_PARAM_SUBFORMAT, 1 << SNDRV_PCM_SUBFORMAT_STD);
- snd_assert(err >= 0, return -EINVAL);
+ if (err < 0)
+ return err;
err = snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_CHANNELS,
hw->channels_min, hw->channels_max);
- snd_assert(err >= 0, return -EINVAL);
+ if (err < 0)
+ return err;
err = snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_RATE,
hw->rate_min, hw->rate_max);
- snd_assert(err >= 0, return -EINVAL);
+ if (err < 0)
+ return err;
err = snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
hw->period_bytes_min, hw->period_bytes_max);
- snd_assert(err >= 0, return -EINVAL);
+ if (err < 0)
+ return err;
err = snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIODS,
hw->periods_min, hw->periods_max);
- snd_assert(err >= 0, return -EINVAL);
+ if (err < 0)
+ return err;
err = snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
hw->period_bytes_min, hw->buffer_bytes_max);
- snd_assert(err >= 0, return -EINVAL);
+ if (err < 0)
+ return err;
err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
snd_pcm_hw_rule_buffer_bytes_max, substream,
@@ -1954,7 +2003,8 @@ int snd_pcm_hw_constraints_complete(struct snd_pcm_substream *substream)
/* FIXME: remove */
if (runtime->dma_bytes) {
err = snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 0, runtime->dma_bytes);
- snd_assert(err >= 0, return -EINVAL);
+ if (err < 0)
+ return err;
}
if (!(hw->rates & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS))) {
@@ -1966,137 +2016,140 @@ int snd_pcm_hw_constraints_complete(struct snd_pcm_substream *substream)
}
/* FIXME: this belong to lowlevel */
- snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_TICK_TIME,
- 1000000 / HZ, 1000000 / HZ);
snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE);
return 0;
}
-static void snd_pcm_add_file(struct snd_pcm_str *str,
- struct snd_pcm_file *pcm_file)
+static void pcm_release_private(struct snd_pcm_substream *substream)
{
- pcm_file->next = str->files;
- str->files = pcm_file;
+ snd_pcm_unlink(substream);
}
-static void snd_pcm_remove_file(struct snd_pcm_str *str,
- struct snd_pcm_file *pcm_file)
+void snd_pcm_release_substream(struct snd_pcm_substream *substream)
{
- struct snd_pcm_file * pcm_file1;
- if (str->files == pcm_file) {
- str->files = pcm_file->next;
- } else {
- pcm_file1 = str->files;
- while (pcm_file1 && pcm_file1->next != pcm_file)
- pcm_file1 = pcm_file1->next;
- if (pcm_file1 != NULL)
- pcm_file1->next = pcm_file->next;
+ substream->ref_count--;
+ if (substream->ref_count > 0)
+ return;
+
+ snd_pcm_drop(substream);
+ if (substream->hw_opened) {
+ if (substream->ops->hw_free != NULL)
+ substream->ops->hw_free(substream);
+ substream->ops->close(substream);
+ substream->hw_opened = 0;
+ }
+ if (pm_qos_request_active(&substream->latency_pm_qos_req))
+ pm_qos_remove_request(&substream->latency_pm_qos_req);
+ if (substream->pcm_release) {
+ substream->pcm_release(substream);
+ substream->pcm_release = NULL;
}
+ snd_pcm_detach_substream(substream);
}
-static int snd_pcm_release_file(struct snd_pcm_file * pcm_file)
+EXPORT_SYMBOL(snd_pcm_release_substream);
+
+int snd_pcm_open_substream(struct snd_pcm *pcm, int stream,
+ struct file *file,
+ struct snd_pcm_substream **rsubstream)
{
struct snd_pcm_substream *substream;
- struct snd_pcm_runtime *runtime;
- struct snd_pcm_str * str;
+ int err;
- snd_assert(pcm_file != NULL, return -ENXIO);
- substream = pcm_file->substream;
- snd_assert(substream != NULL, return -ENXIO);
- runtime = substream->runtime;
- str = substream->pstr;
- snd_pcm_unlink(substream);
- if (substream->ffile != NULL) {
- if (substream->ops->hw_free != NULL)
- substream->ops->hw_free(substream);
- substream->ops->close(substream);
- substream->ffile = NULL;
+ err = snd_pcm_attach_substream(pcm, stream, file, &substream);
+ if (err < 0)
+ return err;
+ if (substream->ref_count > 1) {
+ *rsubstream = substream;
+ return 0;
}
- snd_pcm_remove_file(str, pcm_file);
- snd_pcm_release_substream(substream);
- kfree(pcm_file);
+
+ err = snd_pcm_hw_constraints_init(substream);
+ if (err < 0) {
+ pcm_dbg(pcm, "snd_pcm_hw_constraints_init failed\n");
+ goto error;
+ }
+
+ if ((err = substream->ops->open(substream)) < 0)
+ goto error;
+
+ substream->hw_opened = 1;
+
+ err = snd_pcm_hw_constraints_complete(substream);
+ if (err < 0) {
+ pcm_dbg(pcm, "snd_pcm_hw_constraints_complete failed\n");
+ goto error;
+ }
+
+ *rsubstream = substream;
return 0;
+
+ error:
+ snd_pcm_release_substream(substream);
+ return err;
}
+EXPORT_SYMBOL(snd_pcm_open_substream);
+
static int snd_pcm_open_file(struct file *file,
struct snd_pcm *pcm,
- int stream,
- struct snd_pcm_file **rpcm_file)
+ int stream)
{
- int err = 0;
struct snd_pcm_file *pcm_file;
struct snd_pcm_substream *substream;
- struct snd_pcm_str *str;
+ int err;
- snd_assert(rpcm_file != NULL, return -EINVAL);
- *rpcm_file = NULL;
+ err = snd_pcm_open_substream(pcm, stream, file, &substream);
+ if (err < 0)
+ return err;
pcm_file = kzalloc(sizeof(*pcm_file), GFP_KERNEL);
if (pcm_file == NULL) {
+ snd_pcm_release_substream(substream);
return -ENOMEM;
}
-
- if ((err = snd_pcm_open_substream(pcm, stream, &substream)) < 0) {
- kfree(pcm_file);
- return err;
- }
-
- str = substream->pstr;
- substream->file = pcm_file;
- substream->no_mmap_ctrl = 0;
-
pcm_file->substream = substream;
-
- snd_pcm_add_file(str, pcm_file);
-
- err = snd_pcm_hw_constraints_init(substream);
- if (err < 0) {
- snd_printd("snd_pcm_hw_constraints_init failed\n");
- snd_pcm_release_file(pcm_file);
- return err;
+ if (substream->ref_count == 1) {
+ substream->file = pcm_file;
+ substream->pcm_release = pcm_release_private;
}
-
- if ((err = substream->ops->open(substream)) < 0) {
- snd_pcm_release_file(pcm_file);
- return err;
- }
- substream->ffile = file;
-
- err = snd_pcm_hw_constraints_complete(substream);
- if (err < 0) {
- snd_printd("snd_pcm_hw_constraints_complete failed\n");
- snd_pcm_release_file(pcm_file);
- return err;
- }
-
file->private_data = pcm_file;
- *rpcm_file = pcm_file;
+
return 0;
}
static int snd_pcm_playback_open(struct inode *inode, struct file *file)
{
struct snd_pcm *pcm;
-
+ int err = nonseekable_open(inode, file);
+ if (err < 0)
+ return err;
pcm = snd_lookup_minor_data(iminor(inode),
SNDRV_DEVICE_TYPE_PCM_PLAYBACK);
- return snd_pcm_open(file, pcm, SNDRV_PCM_STREAM_PLAYBACK);
+ err = snd_pcm_open(file, pcm, SNDRV_PCM_STREAM_PLAYBACK);
+ if (pcm)
+ snd_card_unref(pcm->card);
+ return err;
}
static int snd_pcm_capture_open(struct inode *inode, struct file *file)
{
struct snd_pcm *pcm;
-
+ int err = nonseekable_open(inode, file);
+ if (err < 0)
+ return err;
pcm = snd_lookup_minor_data(iminor(inode),
SNDRV_DEVICE_TYPE_PCM_CAPTURE);
- return snd_pcm_open(file, pcm, SNDRV_PCM_STREAM_CAPTURE);
+ err = snd_pcm_open(file, pcm, SNDRV_PCM_STREAM_CAPTURE);
+ if (pcm)
+ snd_card_unref(pcm->card);
+ return err;
}
static int snd_pcm_open(struct file *file, struct snd_pcm *pcm, int stream)
{
int err;
- struct snd_pcm_file *pcm_file;
wait_queue_t wait;
if (pcm == NULL) {
@@ -2112,9 +2165,9 @@ static int snd_pcm_open(struct file *file, struct snd_pcm *pcm, int stream)
}
init_waitqueue_entry(&wait, current);
add_wait_queue(&pcm->open_wait, &wait);
- down(&pcm->open_mutex);
+ mutex_lock(&pcm->open_mutex);
while (1) {
- err = snd_pcm_open_file(file, pcm, stream, &pcm_file);
+ err = snd_pcm_open_file(file, pcm, stream);
if (err >= 0)
break;
if (err == -EAGAIN) {
@@ -2125,16 +2178,20 @@ static int snd_pcm_open(struct file *file, struct snd_pcm *pcm, int stream)
} else
break;
set_current_state(TASK_INTERRUPTIBLE);
- up(&pcm->open_mutex);
+ mutex_unlock(&pcm->open_mutex);
schedule();
- down(&pcm->open_mutex);
+ mutex_lock(&pcm->open_mutex);
+ if (pcm->card->shutdown) {
+ err = -ENODEV;
+ break;
+ }
if (signal_pending(current)) {
err = -ERESTARTSYS;
break;
}
}
remove_wait_queue(&pcm->open_wait, &wait);
- up(&pcm->open_mutex);
+ mutex_unlock(&pcm->open_mutex);
if (err < 0)
goto __error;
return err;
@@ -2155,14 +2212,13 @@ static int snd_pcm_release(struct inode *inode, struct file *file)
pcm_file = file->private_data;
substream = pcm_file->substream;
- snd_assert(substream != NULL, return -ENXIO);
- snd_assert(!atomic_read(&substream->runtime->mmap_count), );
+ if (snd_BUG_ON(!substream))
+ return -ENXIO;
pcm = substream->pcm;
- snd_pcm_drop(substream);
- fasync_helper(-1, file, 0, &substream->runtime->fasync);
- down(&pcm->open_mutex);
- snd_pcm_release_file(pcm_file);
- up(&pcm->open_mutex);
+ mutex_lock(&pcm->open_mutex);
+ snd_pcm_release_substream(substream);
+ kfree(pcm_file);
+ mutex_unlock(&pcm->open_mutex);
wake_up(&pcm->open_wait);
module_put(pcm->card->module);
snd_card_file_remove(pcm->card, file);
@@ -2192,6 +2248,9 @@ static snd_pcm_sframes_t snd_pcm_playback_rewind(struct snd_pcm_substream *subst
case SNDRV_PCM_STATE_XRUN:
ret = -EPIPE;
goto __end;
+ case SNDRV_PCM_STATE_SUSPENDED:
+ ret = -ESTRPIPE;
+ goto __end;
default:
ret = -EBADFD;
goto __end;
@@ -2204,15 +2263,10 @@ static snd_pcm_sframes_t snd_pcm_playback_rewind(struct snd_pcm_substream *subst
}
if (frames > (snd_pcm_uframes_t)hw_avail)
frames = hw_avail;
- else
- frames -= frames % runtime->xfer_align;
appl_ptr = runtime->control->appl_ptr - frames;
if (appl_ptr < 0)
appl_ptr += runtime->boundary;
runtime->control->appl_ptr = appl_ptr;
- if (runtime->status->state == SNDRV_PCM_STATE_RUNNING &&
- runtime->sleep_min)
- snd_pcm_tick_prepare(substream);
ret = frames;
__end:
snd_pcm_stream_unlock_irq(substream);
@@ -2242,6 +2296,9 @@ static snd_pcm_sframes_t snd_pcm_capture_rewind(struct snd_pcm_substream *substr
case SNDRV_PCM_STATE_XRUN:
ret = -EPIPE;
goto __end;
+ case SNDRV_PCM_STATE_SUSPENDED:
+ ret = -ESTRPIPE;
+ goto __end;
default:
ret = -EBADFD;
goto __end;
@@ -2254,15 +2311,10 @@ static snd_pcm_sframes_t snd_pcm_capture_rewind(struct snd_pcm_substream *substr
}
if (frames > (snd_pcm_uframes_t)hw_avail)
frames = hw_avail;
- else
- frames -= frames % runtime->xfer_align;
appl_ptr = runtime->control->appl_ptr - frames;
if (appl_ptr < 0)
appl_ptr += runtime->boundary;
runtime->control->appl_ptr = appl_ptr;
- if (runtime->status->state == SNDRV_PCM_STATE_RUNNING &&
- runtime->sleep_min)
- snd_pcm_tick_prepare(substream);
ret = frames;
__end:
snd_pcm_stream_unlock_irq(substream);
@@ -2293,6 +2345,9 @@ static snd_pcm_sframes_t snd_pcm_playback_forward(struct snd_pcm_substream *subs
case SNDRV_PCM_STATE_XRUN:
ret = -EPIPE;
goto __end;
+ case SNDRV_PCM_STATE_SUSPENDED:
+ ret = -ESTRPIPE;
+ goto __end;
default:
ret = -EBADFD;
goto __end;
@@ -2305,15 +2360,10 @@ static snd_pcm_sframes_t snd_pcm_playback_forward(struct snd_pcm_substream *subs
}
if (frames > (snd_pcm_uframes_t)avail)
frames = avail;
- else
- frames -= frames % runtime->xfer_align;
appl_ptr = runtime->control->appl_ptr + frames;
if (appl_ptr >= (snd_pcm_sframes_t)runtime->boundary)
appl_ptr -= runtime->boundary;
runtime->control->appl_ptr = appl_ptr;
- if (runtime->status->state == SNDRV_PCM_STATE_RUNNING &&
- runtime->sleep_min)
- snd_pcm_tick_prepare(substream);
ret = frames;
__end:
snd_pcm_stream_unlock_irq(substream);
@@ -2344,6 +2394,9 @@ static snd_pcm_sframes_t snd_pcm_capture_forward(struct snd_pcm_substream *subst
case SNDRV_PCM_STATE_XRUN:
ret = -EPIPE;
goto __end;
+ case SNDRV_PCM_STATE_SUSPENDED:
+ ret = -ESTRPIPE;
+ goto __end;
default:
ret = -EBADFD;
goto __end;
@@ -2356,15 +2409,10 @@ static snd_pcm_sframes_t snd_pcm_capture_forward(struct snd_pcm_substream *subst
}
if (frames > (snd_pcm_uframes_t)avail)
frames = avail;
- else
- frames -= frames % runtime->xfer_align;
appl_ptr = runtime->control->appl_ptr + frames;
if (appl_ptr >= (snd_pcm_sframes_t)runtime->boundary)
appl_ptr -= runtime->boundary;
runtime->control->appl_ptr = appl_ptr;
- if (runtime->status->state == SNDRV_PCM_STATE_RUNNING &&
- runtime->sleep_min)
- snd_pcm_tick_prepare(substream);
ret = frames;
__end:
snd_pcm_stream_unlock_irq(substream);
@@ -2381,6 +2429,7 @@ static int snd_pcm_hwsync(struct snd_pcm_substream *substream)
case SNDRV_PCM_STATE_DRAINING:
if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
goto __badfd;
+ /* Fall through */
case SNDRV_PCM_STATE_RUNNING:
if ((err = snd_pcm_update_hw_ptr(substream)) < 0)
break;
@@ -2413,6 +2462,7 @@ static int snd_pcm_delay(struct snd_pcm_substream *substream,
case SNDRV_PCM_STATE_DRAINING:
if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
goto __badfd;
+ /* Fall through */
case SNDRV_PCM_STATE_RUNNING:
if ((err = snd_pcm_update_hw_ptr(substream)) < 0)
break;
@@ -2424,6 +2474,7 @@ static int snd_pcm_delay(struct snd_pcm_substream *substream,
n = snd_pcm_playback_hw_avail(runtime);
else
n = snd_pcm_capture_avail(runtime);
+ n += runtime->delay;
break;
case SNDRV_PCM_STATE_XRUN:
err = -EPIPE;
@@ -2479,24 +2530,35 @@ static int snd_pcm_sync_ptr(struct snd_pcm_substream *substream,
return -EFAULT;
return 0;
}
-
-static int snd_pcm_playback_ioctl1(struct snd_pcm_substream *substream,
- unsigned int cmd, void __user *arg);
-static int snd_pcm_capture_ioctl1(struct snd_pcm_substream *substream,
- unsigned int cmd, void __user *arg);
-static int snd_pcm_common_ioctl1(struct snd_pcm_substream *substream,
+static int snd_pcm_tstamp(struct snd_pcm_substream *substream, int __user *_arg)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ int arg;
+
+ if (get_user(arg, _arg))
+ return -EFAULT;
+ if (arg < 0 || arg > SNDRV_PCM_TSTAMP_TYPE_LAST)
+ return -EINVAL;
+ runtime->tstamp_type = SNDRV_PCM_TSTAMP_TYPE_GETTIMEOFDAY;
+ if (arg == SNDRV_PCM_TSTAMP_TYPE_MONOTONIC)
+ runtime->tstamp_type = SNDRV_PCM_TSTAMP_TYPE_MONOTONIC;
+ return 0;
+}
+
+static int snd_pcm_common_ioctl1(struct file *file,
+ struct snd_pcm_substream *substream,
unsigned int cmd, void __user *arg)
{
- snd_assert(substream != NULL, return -ENXIO);
-
switch (cmd) {
case SNDRV_PCM_IOCTL_PVERSION:
return put_user(SNDRV_PCM_VERSION, (int __user *)arg) ? -EFAULT : 0;
case SNDRV_PCM_IOCTL_INFO:
return snd_pcm_info_user(substream, arg);
- case SNDRV_PCM_IOCTL_TSTAMP: /* just for compatibility */
+ case SNDRV_PCM_IOCTL_TSTAMP: /* just for compatibility */
return 0;
+ case SNDRV_PCM_IOCTL_TTSTAMP:
+ return snd_pcm_tstamp(substream, arg);
case SNDRV_PCM_IOCTL_HW_REFINE:
return snd_pcm_hw_refine_user(substream, arg);
case SNDRV_PCM_IOCTL_HW_PARAMS:
@@ -2510,7 +2572,7 @@ static int snd_pcm_common_ioctl1(struct snd_pcm_substream *substream,
case SNDRV_PCM_IOCTL_CHANNEL_INFO:
return snd_pcm_channel_info_user(substream, arg);
case SNDRV_PCM_IOCTL_PREPARE:
- return snd_pcm_prepare(substream);
+ return snd_pcm_prepare(substream, file);
case SNDRV_PCM_IOCTL_RESET:
return snd_pcm_reset(substream);
case SNDRV_PCM_IOCTL_START:
@@ -2536,19 +2598,30 @@ static int snd_pcm_common_ioctl1(struct snd_pcm_substream *substream,
return snd_pcm_hw_params_old_user(substream, arg);
#endif
case SNDRV_PCM_IOCTL_DRAIN:
- return snd_pcm_drain(substream);
+ return snd_pcm_drain(substream, file);
case SNDRV_PCM_IOCTL_DROP:
return snd_pcm_drop(substream);
+ case SNDRV_PCM_IOCTL_PAUSE:
+ {
+ int res;
+ snd_pcm_stream_lock_irq(substream);
+ res = snd_pcm_pause(substream, (int)(unsigned long)arg);
+ snd_pcm_stream_unlock_irq(substream);
+ return res;
+ }
}
- snd_printd("unknown ioctl = 0x%x\n", cmd);
+ pcm_dbg(substream->pcm, "unknown ioctl = 0x%x\n", cmd);
return -ENOTTY;
}
-static int snd_pcm_playback_ioctl1(struct snd_pcm_substream *substream,
+static int snd_pcm_playback_ioctl1(struct file *file,
+ struct snd_pcm_substream *substream,
unsigned int cmd, void __user *arg)
{
- snd_assert(substream != NULL, return -ENXIO);
- snd_assert(substream->stream == SNDRV_PCM_STREAM_PLAYBACK, return -EINVAL);
+ if (snd_BUG_ON(!substream))
+ return -ENXIO;
+ if (snd_BUG_ON(substream->stream != SNDRV_PCM_STREAM_PLAYBACK))
+ return -EINVAL;
switch (cmd) {
case SNDRV_PCM_IOCTL_WRITEI_FRAMES:
{
@@ -2581,13 +2654,11 @@ static int snd_pcm_playback_ioctl1(struct snd_pcm_substream *substream,
return -EFAULT;
if (copy_from_user(&xfern, _xfern, sizeof(xfern)))
return -EFAULT;
- bufs = kmalloc(sizeof(void *) * runtime->channels, GFP_KERNEL);
- if (bufs == NULL)
- return -ENOMEM;
- if (copy_from_user(bufs, xfern.bufs, sizeof(void *) * runtime->channels)) {
- kfree(bufs);
- return -EFAULT;
- }
+
+ bufs = memdup_user(xfern.bufs,
+ sizeof(void *) * runtime->channels);
+ if (IS_ERR(bufs))
+ return PTR_ERR(bufs);
result = snd_pcm_lib_writev(substream, bufs, xfern.frames);
kfree(bufs);
__put_user(result, &_xfern->result);
@@ -2619,23 +2690,18 @@ static int snd_pcm_playback_ioctl1(struct snd_pcm_substream *substream,
__put_user(result, _frames);
return result < 0 ? result : 0;
}
- case SNDRV_PCM_IOCTL_PAUSE:
- {
- int res;
- snd_pcm_stream_lock_irq(substream);
- res = snd_pcm_pause(substream, (int)(unsigned long)arg);
- snd_pcm_stream_unlock_irq(substream);
- return res;
}
- }
- return snd_pcm_common_ioctl1(substream, cmd, arg);
+ return snd_pcm_common_ioctl1(file, substream, cmd, arg);
}
-static int snd_pcm_capture_ioctl1(struct snd_pcm_substream *substream,
+static int snd_pcm_capture_ioctl1(struct file *file,
+ struct snd_pcm_substream *substream,
unsigned int cmd, void __user *arg)
{
- snd_assert(substream != NULL, return -ENXIO);
- snd_assert(substream->stream == SNDRV_PCM_STREAM_CAPTURE, return -EINVAL);
+ if (snd_BUG_ON(!substream))
+ return -ENXIO;
+ if (snd_BUG_ON(substream->stream != SNDRV_PCM_STREAM_CAPTURE))
+ return -EINVAL;
switch (cmd) {
case SNDRV_PCM_IOCTL_READI_FRAMES:
{
@@ -2668,13 +2734,11 @@ static int snd_pcm_capture_ioctl1(struct snd_pcm_substream *substream,
return -EFAULT;
if (copy_from_user(&xfern, _xfern, sizeof(xfern)))
return -EFAULT;
- bufs = kmalloc(sizeof(void *) * runtime->channels, GFP_KERNEL);
- if (bufs == NULL)
- return -ENOMEM;
- if (copy_from_user(bufs, xfern.bufs, sizeof(void *) * runtime->channels)) {
- kfree(bufs);
- return -EFAULT;
- }
+
+ bufs = memdup_user(xfern.bufs,
+ sizeof(void *) * runtime->channels);
+ if (IS_ERR(bufs))
+ return PTR_ERR(bufs);
result = snd_pcm_lib_readv(substream, bufs, xfern.frames);
kfree(bufs);
__put_user(result, &_xfern->result);
@@ -2707,7 +2771,7 @@ static int snd_pcm_capture_ioctl1(struct snd_pcm_substream *substream,
return result < 0 ? result : 0;
}
}
- return snd_pcm_common_ioctl1(substream, cmd, arg);
+ return snd_pcm_common_ioctl1(file, substream, cmd, arg);
}
static long snd_pcm_playback_ioctl(struct file *file, unsigned int cmd,
@@ -2720,7 +2784,8 @@ static long snd_pcm_playback_ioctl(struct file *file, unsigned int cmd,
if (((cmd >> 8) & 0xff) != 'A')
return -ENOTTY;
- return snd_pcm_playback_ioctl1(pcm_file->substream, cmd, (void __user *)arg);
+ return snd_pcm_playback_ioctl1(file, pcm_file->substream, cmd,
+ (void __user *)arg);
}
static long snd_pcm_capture_ioctl(struct file *file, unsigned int cmd,
@@ -2733,46 +2798,36 @@ static long snd_pcm_capture_ioctl(struct file *file, unsigned int cmd,
if (((cmd >> 8) & 0xff) != 'A')
return -ENOTTY;
- return snd_pcm_capture_ioctl1(pcm_file->substream, cmd, (void __user *)arg);
+ return snd_pcm_capture_ioctl1(file, pcm_file->substream, cmd,
+ (void __user *)arg);
}
-int snd_pcm_kernel_playback_ioctl(struct snd_pcm_substream *substream,
- unsigned int cmd, void *arg)
-{
- mm_segment_t fs;
- int result;
-
- fs = snd_enter_user();
- result = snd_pcm_playback_ioctl1(substream, cmd, (void __user *)arg);
- snd_leave_user(fs);
- return result;
-}
-
-int snd_pcm_kernel_capture_ioctl(struct snd_pcm_substream *substream,
- unsigned int cmd, void *arg)
+int snd_pcm_kernel_ioctl(struct snd_pcm_substream *substream,
+ unsigned int cmd, void *arg)
{
mm_segment_t fs;
int result;
fs = snd_enter_user();
- result = snd_pcm_capture_ioctl1(substream, cmd, (void __user *)arg);
- snd_leave_user(fs);
- return result;
-}
-
-int snd_pcm_kernel_ioctl(struct snd_pcm_substream *substream,
- unsigned int cmd, void *arg)
-{
switch (substream->stream) {
case SNDRV_PCM_STREAM_PLAYBACK:
- return snd_pcm_kernel_playback_ioctl(substream, cmd, arg);
+ result = snd_pcm_playback_ioctl1(NULL, substream, cmd,
+ (void __user *)arg);
+ break;
case SNDRV_PCM_STREAM_CAPTURE:
- return snd_pcm_kernel_capture_ioctl(substream, cmd, arg);
+ result = snd_pcm_capture_ioctl1(NULL, substream, cmd,
+ (void __user *)arg);
+ break;
default:
- return -EINVAL;
+ result = -EINVAL;
+ break;
}
+ snd_leave_user(fs);
+ return result;
}
+EXPORT_SYMBOL(snd_pcm_kernel_ioctl);
+
static ssize_t snd_pcm_read(struct file *file, char __user *buf, size_t count,
loff_t * offset)
{
@@ -2783,7 +2838,8 @@ static ssize_t snd_pcm_read(struct file *file, char __user *buf, size_t count,
pcm_file = file->private_data;
substream = pcm_file->substream;
- snd_assert(substream != NULL, return -ENXIO);
+ if (PCM_RUNTIME_CHECK(substream))
+ return -ENXIO;
runtime = substream->runtime;
if (runtime->status->state == SNDRV_PCM_STATE_OPEN)
return -EBADFD;
@@ -2806,26 +2862,22 @@ static ssize_t snd_pcm_write(struct file *file, const char __user *buf,
pcm_file = file->private_data;
substream = pcm_file->substream;
- snd_assert(substream != NULL, result = -ENXIO; goto end);
+ if (PCM_RUNTIME_CHECK(substream))
+ return -ENXIO;
runtime = substream->runtime;
- if (runtime->status->state == SNDRV_PCM_STATE_OPEN) {
- result = -EBADFD;
- goto end;
- }
- if (!frame_aligned(runtime, count)) {
- result = -EINVAL;
- goto end;
- }
+ if (runtime->status->state == SNDRV_PCM_STATE_OPEN)
+ return -EBADFD;
+ if (!frame_aligned(runtime, count))
+ return -EINVAL;
count = bytes_to_frames(runtime, count);
result = snd_pcm_lib_write(substream, buf, count);
if (result > 0)
result = frames_to_bytes(runtime, result);
- end:
return result;
}
-static ssize_t snd_pcm_readv(struct file *file, const struct iovec *_vector,
- unsigned long count, loff_t * offset)
+static ssize_t snd_pcm_aio_read(struct kiocb *iocb, const struct iovec *iov,
+ unsigned long nr_segs, loff_t pos)
{
struct snd_pcm_file *pcm_file;
@@ -2836,22 +2888,23 @@ static ssize_t snd_pcm_readv(struct file *file, const struct iovec *_vector,
void __user **bufs;
snd_pcm_uframes_t frames;
- pcm_file = file->private_data;
+ pcm_file = iocb->ki_filp->private_data;
substream = pcm_file->substream;
- snd_assert(substream != NULL, return -ENXIO);
+ if (PCM_RUNTIME_CHECK(substream))
+ return -ENXIO;
runtime = substream->runtime;
if (runtime->status->state == SNDRV_PCM_STATE_OPEN)
return -EBADFD;
- if (count > 1024 || count != runtime->channels)
+ if (nr_segs > 1024 || nr_segs != runtime->channels)
return -EINVAL;
- if (!frame_aligned(runtime, _vector->iov_len))
+ if (!frame_aligned(runtime, iov->iov_len))
return -EINVAL;
- frames = bytes_to_samples(runtime, _vector->iov_len);
- bufs = kmalloc(sizeof(void *) * count, GFP_KERNEL);
+ frames = bytes_to_samples(runtime, iov->iov_len);
+ bufs = kmalloc(sizeof(void *) * nr_segs, GFP_KERNEL);
if (bufs == NULL)
return -ENOMEM;
- for (i = 0; i < count; ++i)
- bufs[i] = _vector[i].iov_base;
+ for (i = 0; i < nr_segs; ++i)
+ bufs[i] = iov[i].iov_base;
result = snd_pcm_lib_readv(substream, bufs, frames);
if (result > 0)
result = frames_to_bytes(runtime, result);
@@ -2859,8 +2912,8 @@ static ssize_t snd_pcm_readv(struct file *file, const struct iovec *_vector,
return result;
}
-static ssize_t snd_pcm_writev(struct file *file, const struct iovec *_vector,
- unsigned long count, loff_t * offset)
+static ssize_t snd_pcm_aio_write(struct kiocb *iocb, const struct iovec *iov,
+ unsigned long nr_segs, loff_t pos)
{
struct snd_pcm_file *pcm_file;
struct snd_pcm_substream *substream;
@@ -2870,30 +2923,26 @@ static ssize_t snd_pcm_writev(struct file *file, const struct iovec *_vector,
void __user **bufs;
snd_pcm_uframes_t frames;
- pcm_file = file->private_data;
+ pcm_file = iocb->ki_filp->private_data;
substream = pcm_file->substream;
- snd_assert(substream != NULL, result = -ENXIO; goto end);
+ if (PCM_RUNTIME_CHECK(substream))
+ return -ENXIO;
runtime = substream->runtime;
- if (runtime->status->state == SNDRV_PCM_STATE_OPEN) {
- result = -EBADFD;
- goto end;
- }
- if (count > 128 || count != runtime->channels ||
- !frame_aligned(runtime, _vector->iov_len)) {
- result = -EINVAL;
- goto end;
- }
- frames = bytes_to_samples(runtime, _vector->iov_len);
- bufs = kmalloc(sizeof(void *) * count, GFP_KERNEL);
+ if (runtime->status->state == SNDRV_PCM_STATE_OPEN)
+ return -EBADFD;
+ if (nr_segs > 128 || nr_segs != runtime->channels ||
+ !frame_aligned(runtime, iov->iov_len))
+ return -EINVAL;
+ frames = bytes_to_samples(runtime, iov->iov_len);
+ bufs = kmalloc(sizeof(void *) * nr_segs, GFP_KERNEL);
if (bufs == NULL)
return -ENOMEM;
- for (i = 0; i < count; ++i)
- bufs[i] = _vector[i].iov_base;
+ for (i = 0; i < nr_segs; ++i)
+ bufs[i] = iov[i].iov_base;
result = snd_pcm_lib_writev(substream, bufs, frames);
if (result > 0)
result = frames_to_bytes(runtime, result);
kfree(bufs);
- end:
return result;
}
@@ -2908,7 +2957,8 @@ static unsigned int snd_pcm_playback_poll(struct file *file, poll_table * wait)
pcm_file = file->private_data;
substream = pcm_file->substream;
- snd_assert(substream != NULL, return -ENXIO);
+ if (PCM_RUNTIME_CHECK(substream))
+ return -ENXIO;
runtime = substream->runtime;
poll_wait(file, &runtime->sleep, wait);
@@ -2946,7 +2996,8 @@ static unsigned int snd_pcm_capture_poll(struct file *file, poll_table * wait)
pcm_file = file->private_data;
substream = pcm_file->substream;
- snd_assert(substream != NULL, return -ENXIO);
+ if (PCM_RUNTIME_CHECK(substream))
+ return -ENXIO;
runtime = substream->runtime;
poll_wait(file, &runtime->sleep, wait);
@@ -2989,86 +3040,74 @@ static unsigned int snd_pcm_capture_poll(struct file *file, poll_table * wait)
/*
* mmap status record
*/
-static struct page * snd_pcm_mmap_status_nopage(struct vm_area_struct *area,
- unsigned long address, int *type)
+static int snd_pcm_mmap_status_fault(struct vm_area_struct *area,
+ struct vm_fault *vmf)
{
struct snd_pcm_substream *substream = area->vm_private_data;
struct snd_pcm_runtime *runtime;
- struct page * page;
if (substream == NULL)
- return NOPAGE_OOM;
+ return VM_FAULT_SIGBUS;
runtime = substream->runtime;
- page = virt_to_page(runtime->status);
- get_page(page);
- if (type)
- *type = VM_FAULT_MINOR;
- return page;
+ vmf->page = virt_to_page(runtime->status);
+ get_page(vmf->page);
+ return 0;
}
-static struct vm_operations_struct snd_pcm_vm_ops_status =
+static const struct vm_operations_struct snd_pcm_vm_ops_status =
{
- .nopage = snd_pcm_mmap_status_nopage,
+ .fault = snd_pcm_mmap_status_fault,
};
static int snd_pcm_mmap_status(struct snd_pcm_substream *substream, struct file *file,
struct vm_area_struct *area)
{
- struct snd_pcm_runtime *runtime;
long size;
if (!(area->vm_flags & VM_READ))
return -EINVAL;
- runtime = substream->runtime;
- snd_assert(runtime != NULL, return -EAGAIN);
size = area->vm_end - area->vm_start;
if (size != PAGE_ALIGN(sizeof(struct snd_pcm_mmap_status)))
return -EINVAL;
area->vm_ops = &snd_pcm_vm_ops_status;
area->vm_private_data = substream;
- area->vm_flags |= VM_RESERVED;
+ area->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
return 0;
}
/*
* mmap control record
*/
-static struct page * snd_pcm_mmap_control_nopage(struct vm_area_struct *area,
- unsigned long address, int *type)
+static int snd_pcm_mmap_control_fault(struct vm_area_struct *area,
+ struct vm_fault *vmf)
{
struct snd_pcm_substream *substream = area->vm_private_data;
struct snd_pcm_runtime *runtime;
- struct page * page;
if (substream == NULL)
- return NOPAGE_OOM;
+ return VM_FAULT_SIGBUS;
runtime = substream->runtime;
- page = virt_to_page(runtime->control);
- get_page(page);
- if (type)
- *type = VM_FAULT_MINOR;
- return page;
+ vmf->page = virt_to_page(runtime->control);
+ get_page(vmf->page);
+ return 0;
}
-static struct vm_operations_struct snd_pcm_vm_ops_control =
+static const struct vm_operations_struct snd_pcm_vm_ops_control =
{
- .nopage = snd_pcm_mmap_control_nopage,
+ .fault = snd_pcm_mmap_control_fault,
};
static int snd_pcm_mmap_control(struct snd_pcm_substream *substream, struct file *file,
struct vm_area_struct *area)
{
- struct snd_pcm_runtime *runtime;
long size;
if (!(area->vm_flags & VM_READ))
return -EINVAL;
- runtime = substream->runtime;
- snd_assert(runtime != NULL, return -EAGAIN);
size = area->vm_end - area->vm_start;
if (size != PAGE_ALIGN(sizeof(struct snd_pcm_mmap_control)))
return -EINVAL;
area->vm_ops = &snd_pcm_vm_ops_control;
area->vm_private_data = substream;
- area->vm_flags |= VM_RESERVED;
+ area->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
return 0;
}
#else /* ! coherent mmap */
@@ -3087,93 +3126,123 @@ static int snd_pcm_mmap_control(struct snd_pcm_substream *substream, struct file
}
#endif /* coherent mmap */
+static inline struct page *
+snd_pcm_default_page_ops(struct snd_pcm_substream *substream, unsigned long ofs)
+{
+ void *vaddr = substream->runtime->dma_area + ofs;
+#if defined(CONFIG_MIPS) && defined(CONFIG_DMA_NONCOHERENT)
+ if (substream->dma_buffer.dev.type == SNDRV_DMA_TYPE_DEV)
+ return virt_to_page(CAC_ADDR(vaddr));
+#endif
+#if defined(CONFIG_PPC32) && defined(CONFIG_NOT_COHERENT_CACHE)
+ if (substream->dma_buffer.dev.type == SNDRV_DMA_TYPE_DEV) {
+ dma_addr_t addr = substream->runtime->dma_addr + ofs;
+ addr -= get_dma_offset(substream->dma_buffer.dev.dev);
+ /* assume dma_handle set via pfn_to_phys() in
+ * mm/dma-noncoherent.c
+ */
+ return pfn_to_page(addr >> PAGE_SHIFT);
+ }
+#endif
+ return virt_to_page(vaddr);
+}
+
/*
- * nopage callback for mmapping a RAM page
+ * fault callback for mmapping a RAM page
*/
-static struct page *snd_pcm_mmap_data_nopage(struct vm_area_struct *area,
- unsigned long address, int *type)
+static int snd_pcm_mmap_data_fault(struct vm_area_struct *area,
+ struct vm_fault *vmf)
{
struct snd_pcm_substream *substream = area->vm_private_data;
struct snd_pcm_runtime *runtime;
unsigned long offset;
struct page * page;
- void *vaddr;
size_t dma_bytes;
if (substream == NULL)
- return NOPAGE_OOM;
+ return VM_FAULT_SIGBUS;
runtime = substream->runtime;
- offset = area->vm_pgoff << PAGE_SHIFT;
- offset += address - area->vm_start;
- snd_assert((offset % PAGE_SIZE) == 0, return NOPAGE_OOM);
+ offset = vmf->pgoff << PAGE_SHIFT;
dma_bytes = PAGE_ALIGN(runtime->dma_bytes);
if (offset > dma_bytes - PAGE_SIZE)
- return NOPAGE_SIGBUS;
- if (substream->ops->page) {
+ return VM_FAULT_SIGBUS;
+ if (substream->ops->page)
page = substream->ops->page(substream, offset);
- if (! page)
- return NOPAGE_OOM;
- } else {
- vaddr = runtime->dma_area + offset;
- page = virt_to_page(vaddr);
- }
+ else
+ page = snd_pcm_default_page_ops(substream, offset);
+ if (!page)
+ return VM_FAULT_SIGBUS;
get_page(page);
- if (type)
- *type = VM_FAULT_MINOR;
- return page;
+ vmf->page = page;
+ return 0;
}
-static struct vm_operations_struct snd_pcm_vm_ops_data =
-{
+static const struct vm_operations_struct snd_pcm_vm_ops_data = {
+ .open = snd_pcm_mmap_data_open,
+ .close = snd_pcm_mmap_data_close,
+};
+
+static const struct vm_operations_struct snd_pcm_vm_ops_data_fault = {
.open = snd_pcm_mmap_data_open,
.close = snd_pcm_mmap_data_close,
- .nopage = snd_pcm_mmap_data_nopage,
+ .fault = snd_pcm_mmap_data_fault,
};
+#ifndef ARCH_HAS_DMA_MMAP_COHERENT
+/* This should be defined / handled globally! */
+#ifdef CONFIG_ARM
+#define ARCH_HAS_DMA_MMAP_COHERENT
+#endif
+#endif
+
/*
* mmap the DMA buffer on RAM
*/
-static int snd_pcm_default_mmap(struct snd_pcm_substream *substream,
- struct vm_area_struct *area)
-{
- area->vm_ops = &snd_pcm_vm_ops_data;
- area->vm_private_data = substream;
- area->vm_flags |= VM_RESERVED;
- atomic_inc(&substream->runtime->mmap_count);
+int snd_pcm_lib_default_mmap(struct snd_pcm_substream *substream,
+ struct vm_area_struct *area)
+{
+ area->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
+#ifdef CONFIG_GENERIC_ALLOCATOR
+ if (substream->dma_buffer.dev.type == SNDRV_DMA_TYPE_DEV_IRAM) {
+ area->vm_page_prot = pgprot_writecombine(area->vm_page_prot);
+ return remap_pfn_range(area, area->vm_start,
+ substream->dma_buffer.addr >> PAGE_SHIFT,
+ area->vm_end - area->vm_start, area->vm_page_prot);
+ }
+#endif /* CONFIG_GENERIC_ALLOCATOR */
+#ifdef ARCH_HAS_DMA_MMAP_COHERENT
+ if (!substream->ops->page &&
+ substream->dma_buffer.dev.type == SNDRV_DMA_TYPE_DEV)
+ return dma_mmap_coherent(substream->dma_buffer.dev.dev,
+ area,
+ substream->runtime->dma_area,
+ substream->runtime->dma_addr,
+ area->vm_end - area->vm_start);
+#elif defined(CONFIG_MIPS) && defined(CONFIG_DMA_NONCOHERENT)
+ if (substream->dma_buffer.dev.type == SNDRV_DMA_TYPE_DEV &&
+ !plat_device_is_coherent(substream->dma_buffer.dev.dev))
+ area->vm_page_prot = pgprot_noncached(area->vm_page_prot);
+#endif /* ARCH_HAS_DMA_MMAP_COHERENT */
+ /* mmap with fault handler */
+ area->vm_ops = &snd_pcm_vm_ops_data_fault;
return 0;
}
+EXPORT_SYMBOL_GPL(snd_pcm_lib_default_mmap);
/*
* mmap the DMA buffer on I/O memory area
*/
#if SNDRV_PCM_INFO_MMAP_IOMEM
-static struct vm_operations_struct snd_pcm_vm_ops_data_mmio =
-{
- .open = snd_pcm_mmap_data_open,
- .close = snd_pcm_mmap_data_close,
-};
-
int snd_pcm_lib_mmap_iomem(struct snd_pcm_substream *substream,
struct vm_area_struct *area)
{
- long size;
- unsigned long offset;
+ struct snd_pcm_runtime *runtime = substream->runtime;;
-#ifdef pgprot_noncached
area->vm_page_prot = pgprot_noncached(area->vm_page_prot);
-#endif
- area->vm_ops = &snd_pcm_vm_ops_data_mmio;
- area->vm_private_data = substream;
- area->vm_flags |= VM_IO;
- size = area->vm_end - area->vm_start;
- offset = area->vm_pgoff << PAGE_SHIFT;
- if (io_remap_pfn_range(area, area->vm_start,
- (substream->runtime->dma_addr + offset) >> PAGE_SHIFT,
- size, area->vm_page_prot))
- return -EAGAIN;
- atomic_inc(&substream->runtime->mmap_count);
- return 0;
+ return vm_iomap_memory(area, runtime->dma_addr, runtime->dma_bytes);
}
+
+EXPORT_SYMBOL(snd_pcm_lib_mmap_iomem);
#endif /* SNDRV_PCM_INFO_MMAP */
/*
@@ -3186,6 +3255,7 @@ int snd_pcm_mmap_data(struct snd_pcm_substream *substream, struct file *file,
long size;
unsigned long offset;
size_t dma_bytes;
+ int err;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
if (!(area->vm_flags & (VM_WRITE|VM_READ)))
@@ -3195,7 +3265,6 @@ int snd_pcm_mmap_data(struct snd_pcm_substream *substream, struct file *file,
return -EINVAL;
}
runtime = substream->runtime;
- snd_assert(runtime != NULL, return -EAGAIN);
if (runtime->status->state == SNDRV_PCM_STATE_OPEN)
return -EBADFD;
if (!(runtime->info & SNDRV_PCM_INFO_MMAP))
@@ -3211,12 +3280,19 @@ int snd_pcm_mmap_data(struct snd_pcm_substream *substream, struct file *file,
if (offset > dma_bytes - size)
return -EINVAL;
+ area->vm_ops = &snd_pcm_vm_ops_data;
+ area->vm_private_data = substream;
if (substream->ops->mmap)
- return substream->ops->mmap(substream, area);
+ err = substream->ops->mmap(substream, area);
else
- return snd_pcm_default_mmap(substream, area);
+ err = snd_pcm_lib_default_mmap(substream, area);
+ if (!err)
+ atomic_inc(&substream->mmap_count);
+ return err;
}
+EXPORT_SYMBOL(snd_pcm_mmap_data);
+
static int snd_pcm_mmap(struct file *file, struct vm_area_struct *area)
{
struct snd_pcm_file * pcm_file;
@@ -3225,16 +3301,17 @@ static int snd_pcm_mmap(struct file *file, struct vm_area_struct *area)
pcm_file = file->private_data;
substream = pcm_file->substream;
- snd_assert(substream != NULL, return -ENXIO);
+ if (PCM_RUNTIME_CHECK(substream))
+ return -ENXIO;
offset = area->vm_pgoff << PAGE_SHIFT;
switch (offset) {
case SNDRV_PCM_MMAP_OFFSET_STATUS:
- if (substream->no_mmap_ctrl)
+ if (pcm_file->no_compat_mmap)
return -ENXIO;
return snd_pcm_mmap_status(substream, file, area);
case SNDRV_PCM_MMAP_OFFSET_CONTROL:
- if (substream->no_mmap_ctrl)
+ if (pcm_file->no_compat_mmap)
return -ENXIO;
return snd_pcm_mmap_control(substream, file, area);
default:
@@ -3248,17 +3325,13 @@ static int snd_pcm_fasync(int fd, struct file * file, int on)
struct snd_pcm_file * pcm_file;
struct snd_pcm_substream *substream;
struct snd_pcm_runtime *runtime;
- int err;
pcm_file = file->private_data;
substream = pcm_file->substream;
- snd_assert(substream != NULL, return -ENXIO);
+ if (PCM_RUNTIME_CHECK(substream))
+ return -ENXIO;
runtime = substream->runtime;
-
- err = fasync_helper(fd, file, on, &runtime->fasync);
- if (err < 0)
- return err;
- return 0;
+ return fasync_helper(fd, file, on, &runtime->fasync);
}
/*
@@ -3324,18 +3397,12 @@ static int snd_pcm_hw_refine_old_user(struct snd_pcm_substream *substream,
int err;
params = kmalloc(sizeof(*params), GFP_KERNEL);
- if (!params) {
- err = -ENOMEM;
- goto out;
- }
- oparams = kmalloc(sizeof(*oparams), GFP_KERNEL);
- if (!oparams) {
- err = -ENOMEM;
- goto out;
- }
+ if (!params)
+ return -ENOMEM;
- if (copy_from_user(oparams, _oparams, sizeof(*oparams))) {
- err = -EFAULT;
+ oparams = memdup_user(_oparams, sizeof(*oparams));
+ if (IS_ERR(oparams)) {
+ err = PTR_ERR(oparams);
goto out;
}
snd_pcm_hw_convert_from_old_params(params, oparams);
@@ -3345,9 +3412,10 @@ static int snd_pcm_hw_refine_old_user(struct snd_pcm_substream *substream,
if (!err)
err = -EFAULT;
}
+
+ kfree(oparams);
out:
kfree(params);
- kfree(oparams);
return err;
}
@@ -3359,17 +3427,12 @@ static int snd_pcm_hw_params_old_user(struct snd_pcm_substream *substream,
int err;
params = kmalloc(sizeof(*params), GFP_KERNEL);
- if (!params) {
- err = -ENOMEM;
- goto out;
- }
- oparams = kmalloc(sizeof(*oparams), GFP_KERNEL);
- if (!oparams) {
- err = -ENOMEM;
- goto out;
- }
- if (copy_from_user(oparams, _oparams, sizeof(*oparams))) {
- err = -EFAULT;
+ if (!params)
+ return -ENOMEM;
+
+ oparams = memdup_user(_oparams, sizeof(*oparams));
+ if (IS_ERR(oparams)) {
+ err = PTR_ERR(oparams);
goto out;
}
snd_pcm_hw_convert_from_old_params(params, oparams);
@@ -3379,40 +3442,70 @@ static int snd_pcm_hw_params_old_user(struct snd_pcm_substream *substream,
if (!err)
err = -EFAULT;
}
+
+ kfree(oparams);
out:
kfree(params);
- kfree(oparams);
return err;
}
#endif /* CONFIG_SND_SUPPORT_OLD_API */
+#ifndef CONFIG_MMU
+static unsigned long snd_pcm_get_unmapped_area(struct file *file,
+ unsigned long addr,
+ unsigned long len,
+ unsigned long pgoff,
+ unsigned long flags)
+{
+ struct snd_pcm_file *pcm_file = file->private_data;
+ struct snd_pcm_substream *substream = pcm_file->substream;
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ unsigned long offset = pgoff << PAGE_SHIFT;
+
+ switch (offset) {
+ case SNDRV_PCM_MMAP_OFFSET_STATUS:
+ return (unsigned long)runtime->status;
+ case SNDRV_PCM_MMAP_OFFSET_CONTROL:
+ return (unsigned long)runtime->control;
+ default:
+ return (unsigned long)runtime->dma_area + offset;
+ }
+}
+#else
+# define snd_pcm_get_unmapped_area NULL
+#endif
+
/*
* Register section
*/
-struct file_operations snd_pcm_f_ops[2] = {
+const struct file_operations snd_pcm_f_ops[2] = {
{
.owner = THIS_MODULE,
.write = snd_pcm_write,
- .writev = snd_pcm_writev,
+ .aio_write = snd_pcm_aio_write,
.open = snd_pcm_playback_open,
.release = snd_pcm_release,
+ .llseek = no_llseek,
.poll = snd_pcm_playback_poll,
.unlocked_ioctl = snd_pcm_playback_ioctl,
.compat_ioctl = snd_pcm_ioctl_compat,
.mmap = snd_pcm_mmap,
.fasync = snd_pcm_fasync,
+ .get_unmapped_area = snd_pcm_get_unmapped_area,
},
{
.owner = THIS_MODULE,
.read = snd_pcm_read,
- .readv = snd_pcm_readv,
+ .aio_read = snd_pcm_aio_read,
.open = snd_pcm_capture_open,
.release = snd_pcm_release,
+ .llseek = no_llseek,
.poll = snd_pcm_capture_poll,
.unlocked_ioctl = snd_pcm_capture_ioctl,
.compat_ioctl = snd_pcm_ioctl_compat,
.mmap = snd_pcm_mmap,
.fasync = snd_pcm_fasync,
+ .get_unmapped_area = snd_pcm_get_unmapped_area,
}
};
diff --git a/sound/core/pcm_timer.c b/sound/core/pcm_timer.c
index d94ed16d21e..20ecd8f1808 100644
--- a/sound/core/pcm_timer.c
+++ b/sound/core/pcm_timer.c
@@ -1,6 +1,6 @@
/*
* Digital Audio (PCM) abstract layer
- * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
*
*
* This program is free software; you can redistribute it and/or modify
@@ -19,8 +19,8 @@
*
*/
-#include <sound/driver.h>
#include <linux/time.h>
+#include <linux/gcd.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/timer.h>
@@ -29,22 +29,6 @@
* Timer functions
*/
-/* Greatest common divisor */
-static unsigned long gcd(unsigned long a, unsigned long b)
-{
- unsigned long r;
- if (a < b) {
- r = a;
- a = b;
- b = r;
- }
- while ((r = a % b) != 0) {
- a = b;
- b = r;
- }
- return b;
-}
-
void snd_pcm_timer_resolution_change(struct snd_pcm_substream *substream)
{
unsigned long rate, mult, fsize, l, post;
@@ -52,12 +36,14 @@ void snd_pcm_timer_resolution_change(struct snd_pcm_substream *substream)
mult = 1000000000;
rate = runtime->rate;
- snd_assert(rate != 0, return);
+ if (snd_BUG_ON(!rate))
+ return;
l = gcd(mult, rate);
mult /= l;
rate /= l;
fsize = runtime->period_size;
- snd_assert(fsize != 0, return);
+ if (snd_BUG_ON(!fsize))
+ return;
l = gcd(rate, fsize);
rate /= l;
fsize /= l;
@@ -67,7 +53,9 @@ void snd_pcm_timer_resolution_change(struct snd_pcm_substream *substream)
post *= 2;
}
if (rate == 0) {
- snd_printk(KERN_ERR "pcm timer resolution out of range (rate = %u, period_size = %lu)\n", runtime->rate, runtime->period_size);
+ pcm_err(substream->pcm,
+ "pcm timer resolution out of range (rate = %u, period_size = %lu)\n",
+ runtime->rate, runtime->period_size);
runtime->timer_resolution = -1;
return;
}
@@ -84,25 +72,19 @@ static unsigned long snd_pcm_timer_resolution(struct snd_timer * timer)
static int snd_pcm_timer_start(struct snd_timer * timer)
{
- unsigned long flags;
struct snd_pcm_substream *substream;
substream = snd_timer_chip(timer);
- spin_lock_irqsave(&substream->timer_lock, flags);
substream->timer_running = 1;
- spin_unlock_irqrestore(&substream->timer_lock, flags);
return 0;
}
static int snd_pcm_timer_stop(struct snd_timer * timer)
{
- unsigned long flags;
struct snd_pcm_substream *substream;
substream = snd_timer_chip(timer);
- spin_lock_irqsave(&substream->timer_lock, flags);
substream->timer_running = 0;
- spin_unlock_irqrestore(&substream->timer_lock, flags);
return 0;
}
diff --git a/sound/core/rawmidi.c b/sound/core/rawmidi.c
index d4d124e2192..6fc71a4c8a5 100644
--- a/sound/core/rawmidi.c
+++ b/sound/core/rawmidi.c
@@ -1,6 +1,6 @@
/*
* Abstract layer for MIDI v1.0 stream
- * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
*
*
* This program is free software; you can redistribute it and/or modify
@@ -19,30 +19,28 @@
*
*/
-#include <sound/driver.h>
#include <sound/core.h>
#include <linux/major.h>
#include <linux/init.h>
-#include <linux/smp_lock.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/time.h>
#include <linux/wait.h>
-#include <linux/moduleparam.h>
+#include <linux/mutex.h>
+#include <linux/module.h>
#include <linux/delay.h>
-#include <linux/wait.h>
#include <sound/rawmidi.h>
#include <sound/info.h>
#include <sound/control.h>
#include <sound/minors.h>
#include <sound/initval.h>
-MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
+MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
MODULE_DESCRIPTION("Midlevel RawMidi code for ALSA.");
MODULE_LICENSE("GPL");
#ifdef CONFIG_SND_OSSEMUL
-static int midi_map[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = 0};
+static int midi_map[SNDRV_CARDS];
static int amidi_map[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = 1};
module_param_array(midi_map, int, NULL, 0444);
MODULE_PARM_DESC(midi_map, "Raw MIDI device number assigned to 1st OSS device.");
@@ -54,21 +52,24 @@ static int snd_rawmidi_free(struct snd_rawmidi *rawmidi);
static int snd_rawmidi_dev_free(struct snd_device *device);
static int snd_rawmidi_dev_register(struct snd_device *device);
static int snd_rawmidi_dev_disconnect(struct snd_device *device);
-static int snd_rawmidi_dev_unregister(struct snd_device *device);
static LIST_HEAD(snd_rawmidi_devices);
-static DECLARE_MUTEX(register_mutex);
+static DEFINE_MUTEX(register_mutex);
+
+#define rmidi_err(rmidi, fmt, args...) \
+ dev_err((rmidi)->card->dev, fmt, ##args)
+#define rmidi_warn(rmidi, fmt, args...) \
+ dev_warn((rmidi)->card->dev, fmt, ##args)
+#define rmidi_dbg(rmidi, fmt, args...) \
+ dev_dbg((rmidi)->card->dev, fmt, ##args)
static struct snd_rawmidi *snd_rawmidi_search(struct snd_card *card, int device)
{
- struct list_head *p;
struct snd_rawmidi *rawmidi;
- list_for_each(p, &snd_rawmidi_devices) {
- rawmidi = list_entry(p, struct snd_rawmidi, list);
+ list_for_each_entry(rawmidi, &snd_rawmidi_devices, list)
if (rawmidi->card == card && rawmidi->device == device)
return rawmidi;
- }
return NULL;
}
@@ -98,16 +99,12 @@ static inline int snd_rawmidi_ready_append(struct snd_rawmidi_substream *substre
(!substream->append || runtime->avail >= count);
}
-static void snd_rawmidi_input_event_tasklet(unsigned long data)
-{
- struct snd_rawmidi_substream *substream = (struct snd_rawmidi_substream *)data;
- substream->runtime->event(substream);
-}
-
-static void snd_rawmidi_output_trigger_tasklet(unsigned long data)
+static void snd_rawmidi_input_event_work(struct work_struct *work)
{
- struct snd_rawmidi_substream *substream = (struct snd_rawmidi_substream *)data;
- substream->ops->trigger(substream, 1);
+ struct snd_rawmidi_runtime *runtime =
+ container_of(work, struct snd_rawmidi_runtime, event_work);
+ if (runtime->event)
+ runtime->event(runtime->substream);
}
static int snd_rawmidi_runtime_create(struct snd_rawmidi_substream *substream)
@@ -116,16 +113,10 @@ static int snd_rawmidi_runtime_create(struct snd_rawmidi_substream *substream)
if ((runtime = kzalloc(sizeof(*runtime), GFP_KERNEL)) == NULL)
return -ENOMEM;
+ runtime->substream = substream;
spin_lock_init(&runtime->lock);
init_waitqueue_head(&runtime->sleep);
- if (substream->stream == SNDRV_RAWMIDI_STREAM_INPUT)
- tasklet_init(&runtime->tasklet,
- snd_rawmidi_input_event_tasklet,
- (unsigned long)substream);
- else
- tasklet_init(&runtime->tasklet,
- snd_rawmidi_output_trigger_tasklet,
- (unsigned long)substream);
+ INIT_WORK(&runtime->event_work, snd_rawmidi_input_event_work);
runtime->event = NULL;
runtime->buffer_size = PAGE_SIZE;
runtime->avail_min = 1;
@@ -154,19 +145,18 @@ static int snd_rawmidi_runtime_free(struct snd_rawmidi_substream *substream)
static inline void snd_rawmidi_output_trigger(struct snd_rawmidi_substream *substream,int up)
{
- if (up) {
- tasklet_hi_schedule(&substream->runtime->tasklet);
- } else {
- tasklet_kill(&substream->runtime->tasklet);
- substream->ops->trigger(substream, 0);
- }
+ if (!substream->opened)
+ return;
+ substream->ops->trigger(substream, up);
}
static void snd_rawmidi_input_trigger(struct snd_rawmidi_substream *substream, int up)
{
+ if (!substream->opened)
+ return;
substream->ops->trigger(substream, up);
- if (!up && substream->runtime->event)
- tasklet_kill(&substream->runtime->tasklet);
+ if (!up)
+ cancel_work_sync(&substream->runtime->event_work);
}
int snd_rawmidi_drop_output(struct snd_rawmidi_substream *substream)
@@ -182,6 +172,7 @@ int snd_rawmidi_drop_output(struct snd_rawmidi_substream *substream)
spin_unlock_irqrestore(&runtime->lock, flags);
return 0;
}
+EXPORT_SYMBOL(snd_rawmidi_drop_output);
int snd_rawmidi_drain_output(struct snd_rawmidi_substream *substream)
{
@@ -197,7 +188,9 @@ int snd_rawmidi_drain_output(struct snd_rawmidi_substream *substream)
if (signal_pending(current))
err = -ERESTARTSYS;
if (runtime->avail < runtime->buffer_size && !timeout) {
- snd_printk(KERN_WARNING "rawmidi drain error (avail = %li, buffer_size = %li)\n", (long)runtime->avail, (long)runtime->buffer_size);
+ rmidi_warn(substream->rmidi,
+ "rawmidi drain error (avail = %li, buffer_size = %li)\n",
+ (long)runtime->avail, (long)runtime->buffer_size);
err = -EIO;
}
runtime->drain = 0;
@@ -211,6 +204,7 @@ int snd_rawmidi_drain_output(struct snd_rawmidi_substream *substream)
}
return err;
}
+EXPORT_SYMBOL(snd_rawmidi_drain_output);
int snd_rawmidi_drain_input(struct snd_rawmidi_substream *substream)
{
@@ -225,159 +219,145 @@ int snd_rawmidi_drain_input(struct snd_rawmidi_substream *substream)
spin_unlock_irqrestore(&runtime->lock, flags);
return 0;
}
+EXPORT_SYMBOL(snd_rawmidi_drain_input);
-int snd_rawmidi_kernel_open(struct snd_card *card, int device, int subdevice,
- int mode, struct snd_rawmidi_file * rfile)
+/* look for an available substream for the given stream direction;
+ * if a specific subdevice is given, try to assign it
+ */
+static int assign_substream(struct snd_rawmidi *rmidi, int subdevice,
+ int stream, int mode,
+ struct snd_rawmidi_substream **sub_ret)
{
- struct snd_rawmidi *rmidi;
- struct list_head *list1, *list2;
- struct snd_rawmidi_substream *sinput = NULL, *soutput = NULL;
- struct snd_rawmidi_runtime *input = NULL, *output = NULL;
- int err;
+ struct snd_rawmidi_substream *substream;
+ struct snd_rawmidi_str *s = &rmidi->streams[stream];
+ static unsigned int info_flags[2] = {
+ [SNDRV_RAWMIDI_STREAM_OUTPUT] = SNDRV_RAWMIDI_INFO_OUTPUT,
+ [SNDRV_RAWMIDI_STREAM_INPUT] = SNDRV_RAWMIDI_INFO_INPUT,
+ };
- if (rfile)
- rfile->input = rfile->output = NULL;
- down(&register_mutex);
- rmidi = snd_rawmidi_search(card, device);
- up(&register_mutex);
- if (rmidi == NULL) {
- err = -ENODEV;
- goto __error1;
- }
- if (!try_module_get(rmidi->card->module)) {
- err = -EFAULT;
- goto __error1;
- }
- if (!(mode & SNDRV_RAWMIDI_LFLG_NOOPENLOCK))
- down(&rmidi->open_mutex);
- if (mode & SNDRV_RAWMIDI_LFLG_INPUT) {
- if (!(rmidi->info_flags & SNDRV_RAWMIDI_INFO_INPUT)) {
- err = -ENXIO;
- goto __error;
- }
- if (subdevice >= 0 && (unsigned int)subdevice >= rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT].substream_count) {
- err = -ENODEV;
- goto __error;
- }
- if (rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT].substream_opened >=
- rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT].substream_count) {
- err = -EAGAIN;
- goto __error;
- }
- }
- if (mode & SNDRV_RAWMIDI_LFLG_OUTPUT) {
- if (!(rmidi->info_flags & SNDRV_RAWMIDI_INFO_OUTPUT)) {
- err = -ENXIO;
- goto __error;
- }
- if (subdevice >= 0 && (unsigned int)subdevice >= rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT].substream_count) {
- err = -ENODEV;
- goto __error;
- }
- if (rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT].substream_opened >=
- rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT].substream_count) {
- err = -EAGAIN;
- goto __error;
+ if (!(rmidi->info_flags & info_flags[stream]))
+ return -ENXIO;
+ if (subdevice >= 0 && subdevice >= s->substream_count)
+ return -ENODEV;
+
+ list_for_each_entry(substream, &s->substreams, list) {
+ if (substream->opened) {
+ if (stream == SNDRV_RAWMIDI_STREAM_INPUT ||
+ !(mode & SNDRV_RAWMIDI_LFLG_APPEND) ||
+ !substream->append)
+ continue;
}
- }
- list1 = rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT].substreams.next;
- while (1) {
- if (list1 == &rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT].substreams) {
- sinput = NULL;
- if (mode & SNDRV_RAWMIDI_LFLG_INPUT) {
- err = -EAGAIN;
- goto __error;
- }
- break;
+ if (subdevice < 0 || subdevice == substream->number) {
+ *sub_ret = substream;
+ return 0;
}
- sinput = list_entry(list1, struct snd_rawmidi_substream, list);
- if ((mode & SNDRV_RAWMIDI_LFLG_INPUT) && sinput->opened)
- goto __nexti;
- if (subdevice < 0 || (subdevice >= 0 && subdevice == sinput->number))
- break;
- __nexti:
- list1 = list1->next;
}
- list2 = rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT].substreams.next;
- while (1) {
- if (list2 == &rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT].substreams) {
- soutput = NULL;
- if (mode & SNDRV_RAWMIDI_LFLG_OUTPUT) {
- err = -EAGAIN;
- goto __error;
- }
- break;
- }
- soutput = list_entry(list2, struct snd_rawmidi_substream, list);
- if (mode & SNDRV_RAWMIDI_LFLG_OUTPUT) {
- if (mode & SNDRV_RAWMIDI_LFLG_APPEND) {
- if (soutput->opened && !soutput->append)
- goto __nexto;
- } else {
- if (soutput->opened)
- goto __nexto;
- }
+ return -EAGAIN;
+}
+
+/* open and do ref-counting for the given substream */
+static int open_substream(struct snd_rawmidi *rmidi,
+ struct snd_rawmidi_substream *substream,
+ int mode)
+{
+ int err;
+
+ if (substream->use_count == 0) {
+ err = snd_rawmidi_runtime_create(substream);
+ if (err < 0)
+ return err;
+ err = substream->ops->open(substream);
+ if (err < 0) {
+ snd_rawmidi_runtime_free(substream);
+ return err;
}
- if (subdevice < 0 || (subdevice >= 0 && subdevice == soutput->number))
- break;
- __nexto:
- list2 = list2->next;
+ substream->opened = 1;
+ substream->active_sensing = 0;
+ if (mode & SNDRV_RAWMIDI_LFLG_APPEND)
+ substream->append = 1;
+ substream->pid = get_pid(task_pid(current));
+ rmidi->streams[substream->stream].substream_opened++;
}
+ substream->use_count++;
+ return 0;
+}
+
+static void close_substream(struct snd_rawmidi *rmidi,
+ struct snd_rawmidi_substream *substream,
+ int cleanup);
+
+static int rawmidi_open_priv(struct snd_rawmidi *rmidi, int subdevice, int mode,
+ struct snd_rawmidi_file *rfile)
+{
+ struct snd_rawmidi_substream *sinput = NULL, *soutput = NULL;
+ int err;
+
+ rfile->input = rfile->output = NULL;
if (mode & SNDRV_RAWMIDI_LFLG_INPUT) {
- if ((err = snd_rawmidi_runtime_create(sinput)) < 0)
- goto __error;
- input = sinput->runtime;
- if ((err = sinput->ops->open(sinput)) < 0)
- goto __error;
- sinput->opened = 1;
- rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT].substream_opened++;
- } else {
- sinput = NULL;
+ err = assign_substream(rmidi, subdevice,
+ SNDRV_RAWMIDI_STREAM_INPUT,
+ mode, &sinput);
+ if (err < 0)
+ return err;
}
if (mode & SNDRV_RAWMIDI_LFLG_OUTPUT) {
- if (soutput->opened)
- goto __skip_output;
- if ((err = snd_rawmidi_runtime_create(soutput)) < 0) {
- if (mode & SNDRV_RAWMIDI_LFLG_INPUT)
- sinput->ops->close(sinput);
- goto __error;
- }
- output = soutput->runtime;
- if ((err = soutput->ops->open(soutput)) < 0) {
- if (mode & SNDRV_RAWMIDI_LFLG_INPUT)
- sinput->ops->close(sinput);
- goto __error;
- }
- __skip_output:
- soutput->opened = 1;
- if (mode & SNDRV_RAWMIDI_LFLG_APPEND)
- soutput->append = 1;
- if (soutput->use_count++ == 0)
- soutput->active_sensing = 1;
- rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT].substream_opened++;
- } else {
- soutput = NULL;
+ err = assign_substream(rmidi, subdevice,
+ SNDRV_RAWMIDI_STREAM_OUTPUT,
+ mode, &soutput);
+ if (err < 0)
+ return err;
+ }
+
+ if (sinput) {
+ err = open_substream(rmidi, sinput, mode);
+ if (err < 0)
+ return err;
}
- if (!(mode & SNDRV_RAWMIDI_LFLG_NOOPENLOCK))
- up(&rmidi->open_mutex);
- if (rfile) {
- rfile->rmidi = rmidi;
- rfile->input = sinput;
- rfile->output = soutput;
+ if (soutput) {
+ err = open_substream(rmidi, soutput, mode);
+ if (err < 0) {
+ if (sinput)
+ close_substream(rmidi, sinput, 0);
+ return err;
+ }
}
+
+ rfile->rmidi = rmidi;
+ rfile->input = sinput;
+ rfile->output = soutput;
return 0;
+}
- __error:
- if (input != NULL)
- snd_rawmidi_runtime_free(sinput);
- if (output != NULL)
- snd_rawmidi_runtime_free(soutput);
- module_put(rmidi->card->module);
- if (!(mode & SNDRV_RAWMIDI_LFLG_NOOPENLOCK))
- up(&rmidi->open_mutex);
- __error1:
+/* called from sound/core/seq/seq_midi.c */
+int snd_rawmidi_kernel_open(struct snd_card *card, int device, int subdevice,
+ int mode, struct snd_rawmidi_file * rfile)
+{
+ struct snd_rawmidi *rmidi;
+ int err;
+
+ if (snd_BUG_ON(!rfile))
+ return -EINVAL;
+
+ mutex_lock(&register_mutex);
+ rmidi = snd_rawmidi_search(card, device);
+ if (rmidi == NULL) {
+ mutex_unlock(&register_mutex);
+ return -ENODEV;
+ }
+ if (!try_module_get(rmidi->card->module)) {
+ mutex_unlock(&register_mutex);
+ return -ENXIO;
+ }
+ mutex_unlock(&register_mutex);
+
+ mutex_lock(&rmidi->open_mutex);
+ err = rawmidi_open_priv(rmidi, subdevice, mode, rfile);
+ mutex_unlock(&rmidi->open_mutex);
+ if (err < 0)
+ module_put(rmidi->card->module);
return err;
}
+EXPORT_SYMBOL(snd_rawmidi_kernel_open);
static int snd_rawmidi_open(struct inode *inode, struct file *file)
{
@@ -387,11 +367,17 @@ static int snd_rawmidi_open(struct inode *inode, struct file *file)
unsigned short fflags;
int err;
struct snd_rawmidi *rmidi;
- struct snd_rawmidi_file *rawmidi_file;
+ struct snd_rawmidi_file *rawmidi_file = NULL;
wait_queue_t wait;
- struct list_head *list;
struct snd_ctl_file *kctl;
+ if ((file->f_flags & O_APPEND) && !(file->f_flags & O_NONBLOCK))
+ return -EINVAL; /* invalid combination */
+
+ err = nonseekable_open(inode, file);
+ if (err < 0)
+ return err;
+
if (maj == snd_major) {
rmidi = snd_lookup_minor_data(iminor(inode),
SNDRV_DEVICE_TYPE_RAWMIDI);
@@ -405,37 +391,39 @@ static int snd_rawmidi_open(struct inode *inode, struct file *file)
if (rmidi == NULL)
return -ENODEV;
- if ((file->f_flags & O_APPEND) && !(file->f_flags & O_NONBLOCK))
- return -EINVAL; /* invalid combination */
+
+ if (!try_module_get(rmidi->card->module)) {
+ snd_card_unref(rmidi->card);
+ return -ENXIO;
+ }
+
+ mutex_lock(&rmidi->open_mutex);
card = rmidi->card;
err = snd_card_file_add(card, file);
if (err < 0)
- return -ENODEV;
+ goto __error_card;
fflags = snd_rawmidi_file_flags(file);
if ((file->f_flags & O_APPEND) || maj == SOUND_MAJOR) /* OSS emul? */
fflags |= SNDRV_RAWMIDI_LFLG_APPEND;
- fflags |= SNDRV_RAWMIDI_LFLG_NOOPENLOCK;
rawmidi_file = kmalloc(sizeof(*rawmidi_file), GFP_KERNEL);
if (rawmidi_file == NULL) {
- snd_card_file_remove(card, file);
- return -ENOMEM;
+ err = -ENOMEM;
+ goto __error;
}
init_waitqueue_entry(&wait, current);
add_wait_queue(&rmidi->open_wait, &wait);
- down(&rmidi->open_mutex);
while (1) {
subdevice = -1;
- down_read(&card->controls_rwsem);
- list_for_each(list, &card->ctl_files) {
- kctl = snd_ctl_file(list);
- if (kctl->pid == current->pid) {
+ read_lock(&card->ctl_files_rwlock);
+ list_for_each_entry(kctl, &card->ctl_files, list) {
+ if (kctl->pid == task_pid(current)) {
subdevice = kctl->prefer_rawmidi_subdevice;
- break;
+ if (subdevice != -1)
+ break;
}
}
- up_read(&card->controls_rwsem);
- err = snd_rawmidi_kernel_open(rmidi->card, rmidi->device,
- subdevice, fflags, rawmidi_file);
+ read_unlock(&card->ctl_files_rwlock);
+ err = rawmidi_open_priv(rmidi, subdevice, fflags, rawmidi_file);
if (err >= 0)
break;
if (err == -EAGAIN) {
@@ -446,92 +434,124 @@ static int snd_rawmidi_open(struct inode *inode, struct file *file)
} else
break;
set_current_state(TASK_INTERRUPTIBLE);
- up(&rmidi->open_mutex);
+ mutex_unlock(&rmidi->open_mutex);
schedule();
- down(&rmidi->open_mutex);
+ mutex_lock(&rmidi->open_mutex);
+ if (rmidi->card->shutdown) {
+ err = -ENODEV;
+ break;
+ }
if (signal_pending(current)) {
err = -ERESTARTSYS;
break;
}
}
+ remove_wait_queue(&rmidi->open_wait, &wait);
+ if (err < 0) {
+ kfree(rawmidi_file);
+ goto __error;
+ }
#ifdef CONFIG_SND_OSSEMUL
if (rawmidi_file->input && rawmidi_file->input->runtime)
rawmidi_file->input->runtime->oss = (maj == SOUND_MAJOR);
if (rawmidi_file->output && rawmidi_file->output->runtime)
rawmidi_file->output->runtime->oss = (maj == SOUND_MAJOR);
#endif
- remove_wait_queue(&rmidi->open_wait, &wait);
- if (err >= 0) {
- file->private_data = rawmidi_file;
- } else {
- snd_card_file_remove(card, file);
- kfree(rawmidi_file);
- }
- up(&rmidi->open_mutex);
+ file->private_data = rawmidi_file;
+ mutex_unlock(&rmidi->open_mutex);
+ snd_card_unref(rmidi->card);
+ return 0;
+
+ __error:
+ snd_card_file_remove(card, file);
+ __error_card:
+ mutex_unlock(&rmidi->open_mutex);
+ module_put(rmidi->card->module);
+ snd_card_unref(rmidi->card);
return err;
}
-int snd_rawmidi_kernel_release(struct snd_rawmidi_file * rfile)
+static void close_substream(struct snd_rawmidi *rmidi,
+ struct snd_rawmidi_substream *substream,
+ int cleanup)
{
- struct snd_rawmidi *rmidi;
- struct snd_rawmidi_substream *substream;
- struct snd_rawmidi_runtime *runtime;
+ if (--substream->use_count)
+ return;
- snd_assert(rfile != NULL, return -ENXIO);
- snd_assert(rfile->input != NULL || rfile->output != NULL, return -ENXIO);
- rmidi = rfile->rmidi;
- down(&rmidi->open_mutex);
- if (rfile->input != NULL) {
- substream = rfile->input;
- rfile->input = NULL;
- runtime = substream->runtime;
- snd_rawmidi_input_trigger(substream, 0);
- substream->ops->close(substream);
- if (runtime->private_free != NULL)
- runtime->private_free(substream);
- snd_rawmidi_runtime_free(substream);
- substream->opened = 0;
- rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT].substream_opened--;
- }
- if (rfile->output != NULL) {
- substream = rfile->output;
- rfile->output = NULL;
- if (--substream->use_count == 0) {
- runtime = substream->runtime;
+ if (cleanup) {
+ if (substream->stream == SNDRV_RAWMIDI_STREAM_INPUT)
+ snd_rawmidi_input_trigger(substream, 0);
+ else {
if (substream->active_sensing) {
unsigned char buf = 0xfe;
- /* sending single active sensing message to shut the device up */
+ /* sending single active sensing message
+ * to shut the device up
+ */
snd_rawmidi_kernel_write(substream, &buf, 1);
}
if (snd_rawmidi_drain_output(substream) == -ERESTARTSYS)
snd_rawmidi_output_trigger(substream, 0);
- substream->ops->close(substream);
- if (runtime->private_free != NULL)
- runtime->private_free(substream);
- snd_rawmidi_runtime_free(substream);
- substream->opened = 0;
- substream->append = 0;
}
- rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT].substream_opened--;
}
- up(&rmidi->open_mutex);
+ substream->ops->close(substream);
+ if (substream->runtime->private_free)
+ substream->runtime->private_free(substream);
+ snd_rawmidi_runtime_free(substream);
+ substream->opened = 0;
+ substream->append = 0;
+ put_pid(substream->pid);
+ substream->pid = NULL;
+ rmidi->streams[substream->stream].substream_opened--;
+}
+
+static void rawmidi_release_priv(struct snd_rawmidi_file *rfile)
+{
+ struct snd_rawmidi *rmidi;
+
+ rmidi = rfile->rmidi;
+ mutex_lock(&rmidi->open_mutex);
+ if (rfile->input) {
+ close_substream(rmidi, rfile->input, 1);
+ rfile->input = NULL;
+ }
+ if (rfile->output) {
+ close_substream(rmidi, rfile->output, 1);
+ rfile->output = NULL;
+ }
+ rfile->rmidi = NULL;
+ mutex_unlock(&rmidi->open_mutex);
+ wake_up(&rmidi->open_wait);
+}
+
+/* called from sound/core/seq/seq_midi.c */
+int snd_rawmidi_kernel_release(struct snd_rawmidi_file *rfile)
+{
+ struct snd_rawmidi *rmidi;
+
+ if (snd_BUG_ON(!rfile))
+ return -ENXIO;
+
+ rmidi = rfile->rmidi;
+ rawmidi_release_priv(rfile);
module_put(rmidi->card->module);
return 0;
}
+EXPORT_SYMBOL(snd_rawmidi_kernel_release);
static int snd_rawmidi_release(struct inode *inode, struct file *file)
{
struct snd_rawmidi_file *rfile;
struct snd_rawmidi *rmidi;
- int err;
+ struct module *module;
rfile = file->private_data;
- err = snd_rawmidi_kernel_release(rfile);
rmidi = rfile->rmidi;
- wake_up(&rmidi->open_wait);
+ rawmidi_release_priv(rfile);
kfree(rfile);
+ module = rmidi->card->module;
snd_card_file_remove(rmidi->card, file);
- return err;
+ module_put(module);
+ return 0;
}
static int snd_rawmidi_info(struct snd_rawmidi_substream *substream,
@@ -574,11 +594,10 @@ int snd_rawmidi_info_select(struct snd_card *card, struct snd_rawmidi_info *info
struct snd_rawmidi *rmidi;
struct snd_rawmidi_str *pstr;
struct snd_rawmidi_substream *substream;
- struct list_head *list;
- down(&register_mutex);
+ mutex_lock(&register_mutex);
rmidi = snd_rawmidi_search(card, info->device);
- up(&register_mutex);
+ mutex_unlock(&register_mutex);
if (!rmidi)
return -ENXIO;
if (info->stream < 0 || info->stream > 1)
@@ -588,13 +607,13 @@ int snd_rawmidi_info_select(struct snd_card *card, struct snd_rawmidi_info *info
return -ENOENT;
if (info->subdevice >= pstr->substream_count)
return -ENXIO;
- list_for_each(list, &pstr->substreams) {
- substream = list_entry(list, struct snd_rawmidi_substream, list);
+ list_for_each_entry(substream, &pstr->substreams, list) {
if ((unsigned int)substream->number == info->subdevice)
return snd_rawmidi_info(substream, info);
}
return -ENXIO;
}
+EXPORT_SYMBOL(snd_rawmidi_info_select);
static int snd_rawmidi_info_select_user(struct snd_card *card,
struct snd_rawmidi_info __user *_info)
@@ -630,9 +649,10 @@ int snd_rawmidi_output_params(struct snd_rawmidi_substream *substream,
return -EINVAL;
}
if (params->buffer_size != runtime->buffer_size) {
- if ((newbuf = (char *) kmalloc(params->buffer_size, GFP_KERNEL)) == NULL)
+ newbuf = krealloc(runtime->buffer, params->buffer_size,
+ GFP_KERNEL);
+ if (!newbuf)
return -ENOMEM;
- kfree(runtime->buffer);
runtime->buffer = newbuf;
runtime->buffer_size = params->buffer_size;
runtime->avail = runtime->buffer_size;
@@ -641,6 +661,7 @@ int snd_rawmidi_output_params(struct snd_rawmidi_substream *substream,
substream->active_sensing = !params->no_active_sensing;
return 0;
}
+EXPORT_SYMBOL(snd_rawmidi_output_params);
int snd_rawmidi_input_params(struct snd_rawmidi_substream *substream,
struct snd_rawmidi_params * params)
@@ -656,15 +677,17 @@ int snd_rawmidi_input_params(struct snd_rawmidi_substream *substream,
return -EINVAL;
}
if (params->buffer_size != runtime->buffer_size) {
- if ((newbuf = (char *) kmalloc(params->buffer_size, GFP_KERNEL)) == NULL)
+ newbuf = krealloc(runtime->buffer, params->buffer_size,
+ GFP_KERNEL);
+ if (!newbuf)
return -ENOMEM;
- kfree(runtime->buffer);
runtime->buffer = newbuf;
runtime->buffer_size = params->buffer_size;
}
runtime->avail_min = params->avail_min;
return 0;
}
+EXPORT_SYMBOL(snd_rawmidi_input_params);
static int snd_rawmidi_output_status(struct snd_rawmidi_substream *substream,
struct snd_rawmidi_status * status)
@@ -796,10 +819,9 @@ static long snd_rawmidi_ioctl(struct file *file, unsigned int cmd, unsigned long
return -EINVAL;
}
}
-#ifdef CONFIG_SND_DEBUG
default:
- snd_printk(KERN_WARNING "rawmidi: unknown command = 0x%x\n", cmd);
-#endif
+ rmidi_dbg(rfile->rmidi,
+ "rawmidi: unknown command = 0x%x\n", cmd);
}
return -ENOTTY;
}
@@ -818,7 +840,9 @@ static int snd_rawmidi_control_ioctl(struct snd_card *card,
if (get_user(device, (int __user *)argp))
return -EFAULT;
- down(&register_mutex);
+ if (device >= SNDRV_RAWMIDI_DEVICES) /* next device is -1 */
+ device = SNDRV_RAWMIDI_DEVICES - 1;
+ mutex_lock(&register_mutex);
device = device < 0 ? 0 : device + 1;
while (device < SNDRV_RAWMIDI_DEVICES) {
if (snd_rawmidi_search(card, device))
@@ -827,7 +851,7 @@ static int snd_rawmidi_control_ioctl(struct snd_card *card,
}
if (device == SNDRV_RAWMIDI_DEVICES)
device = -1;
- up(&register_mutex);
+ mutex_unlock(&register_mutex);
if (put_user(device, (int __user *)argp))
return -EFAULT;
return 0;
@@ -855,7 +879,7 @@ static int snd_rawmidi_control_ioctl(struct snd_card *card,
*
* Reads the data from the internal buffer.
*
- * Returns the size of read data, or a negative error code on failure.
+ * Return: The size of read data, or a negative error code on failure.
*/
int snd_rawmidi_receive(struct snd_rawmidi_substream *substream,
const unsigned char *buffer, int count)
@@ -864,8 +888,11 @@ int snd_rawmidi_receive(struct snd_rawmidi_substream *substream,
int result = 0, count1;
struct snd_rawmidi_runtime *runtime = substream->runtime;
+ if (!substream->opened)
+ return -EBADFD;
if (runtime->buffer == NULL) {
- snd_printd("snd_rawmidi_receive: input is not active!!!\n");
+ rmidi_dbg(substream->rmidi,
+ "snd_rawmidi_receive: input is not active!!!\n");
return -EINVAL;
}
spin_lock_irqsave(&runtime->lock, flags);
@@ -909,16 +936,18 @@ int snd_rawmidi_receive(struct snd_rawmidi_substream *substream,
}
if (result > 0) {
if (runtime->event)
- tasklet_hi_schedule(&runtime->tasklet);
+ schedule_work(&runtime->event_work);
else if (snd_rawmidi_ready(substream))
wake_up(&runtime->sleep);
}
spin_unlock_irqrestore(&runtime->lock, flags);
return result;
}
+EXPORT_SYMBOL(snd_rawmidi_receive);
static long snd_rawmidi_kernel_read1(struct snd_rawmidi_substream *substream,
- unsigned char *buf, long count, int kernel)
+ unsigned char __user *userbuf,
+ unsigned char *kernelbuf, long count)
{
unsigned long flags;
long result = 0, count1;
@@ -931,11 +960,11 @@ static long snd_rawmidi_kernel_read1(struct snd_rawmidi_substream *substream,
spin_lock_irqsave(&runtime->lock, flags);
if (count1 > (int)runtime->avail)
count1 = runtime->avail;
- if (kernel) {
- memcpy(buf + result, runtime->buffer + runtime->appl_ptr, count1);
- } else {
+ if (kernelbuf)
+ memcpy(kernelbuf + result, runtime->buffer + runtime->appl_ptr, count1);
+ if (userbuf) {
spin_unlock_irqrestore(&runtime->lock, flags);
- if (copy_to_user((char __user *)buf + result,
+ if (copy_to_user(userbuf + result,
runtime->buffer + runtime->appl_ptr, count1)) {
return result > 0 ? result : -EFAULT;
}
@@ -955,8 +984,9 @@ long snd_rawmidi_kernel_read(struct snd_rawmidi_substream *substream,
unsigned char *buf, long count)
{
snd_rawmidi_input_trigger(substream, 1);
- return snd_rawmidi_kernel_read1(substream, buf, count, 1);
+ return snd_rawmidi_kernel_read1(substream, NULL/*userbuf*/, buf, count);
}
+EXPORT_SYMBOL(snd_rawmidi_kernel_read);
static ssize_t snd_rawmidi_read(struct file *file, char __user *buf, size_t count,
loff_t *offset)
@@ -988,6 +1018,8 @@ static ssize_t snd_rawmidi_read(struct file *file, char __user *buf, size_t coun
spin_unlock_irq(&runtime->lock);
schedule();
remove_wait_queue(&runtime->sleep, &wait);
+ if (rfile->rmidi->card->shutdown)
+ return -ENODEV;
if (signal_pending(current))
return result > 0 ? result : -ERESTARTSYS;
if (!runtime->avail)
@@ -996,8 +1028,9 @@ static ssize_t snd_rawmidi_read(struct file *file, char __user *buf, size_t coun
}
spin_unlock_irq(&runtime->lock);
count1 = snd_rawmidi_kernel_read1(substream,
- (unsigned char __force *)buf,
- count, 0);
+ (unsigned char __user *)buf,
+ NULL/*kernelbuf*/,
+ count);
if (count1 < 0)
return result > 0 ? result : count1;
result += count1;
@@ -1010,8 +1043,8 @@ static ssize_t snd_rawmidi_read(struct file *file, char __user *buf, size_t coun
/**
* snd_rawmidi_transmit_empty - check whether the output buffer is empty
* @substream: the rawmidi substream
- *
- * Returns 1 if the internal output buffer is empty, 0 if not.
+ *
+ * Return: 1 if the internal output buffer is empty, 0 if not.
*/
int snd_rawmidi_transmit_empty(struct snd_rawmidi_substream *substream)
{
@@ -1020,7 +1053,8 @@ int snd_rawmidi_transmit_empty(struct snd_rawmidi_substream *substream)
unsigned long flags;
if (runtime->buffer == NULL) {
- snd_printd("snd_rawmidi_transmit_empty: output is not active!!!\n");
+ rmidi_dbg(substream->rmidi,
+ "snd_rawmidi_transmit_empty: output is not active!!!\n");
return 1;
}
spin_lock_irqsave(&runtime->lock, flags);
@@ -1028,6 +1062,7 @@ int snd_rawmidi_transmit_empty(struct snd_rawmidi_substream *substream)
spin_unlock_irqrestore(&runtime->lock, flags);
return result;
}
+EXPORT_SYMBOL(snd_rawmidi_transmit_empty);
/**
* snd_rawmidi_transmit_peek - copy data from the internal buffer
@@ -1041,7 +1076,7 @@ int snd_rawmidi_transmit_empty(struct snd_rawmidi_substream *substream)
* and call snd_rawmidi_transmit_ack() after the transmission is
* finished.
*
- * Returns the size of copied data, or a negative error code on failure.
+ * Return: The size of copied data, or a negative error code on failure.
*/
int snd_rawmidi_transmit_peek(struct snd_rawmidi_substream *substream,
unsigned char *buffer, int count)
@@ -1051,7 +1086,8 @@ int snd_rawmidi_transmit_peek(struct snd_rawmidi_substream *substream,
struct snd_rawmidi_runtime *runtime = substream->runtime;
if (runtime->buffer == NULL) {
- snd_printd("snd_rawmidi_transmit_peek: output is not active!!!\n");
+ rmidi_dbg(substream->rmidi,
+ "snd_rawmidi_transmit_peek: output is not active!!!\n");
return -EINVAL;
}
result = 0;
@@ -1083,17 +1119,18 @@ int snd_rawmidi_transmit_peek(struct snd_rawmidi_substream *substream,
spin_unlock_irqrestore(&runtime->lock, flags);
return result;
}
+EXPORT_SYMBOL(snd_rawmidi_transmit_peek);
/**
* snd_rawmidi_transmit_ack - acknowledge the transmission
* @substream: the rawmidi substream
- * @count: the tranferred count
+ * @count: the transferred count
*
* Advances the hardware pointer for the internal output buffer with
* the given size and updates the condition.
* Call after the transmission is finished.
*
- * Returns the advanced size if successful, or a negative error code on failure.
+ * Return: The advanced size if successful, or a negative error code on failure.
*/
int snd_rawmidi_transmit_ack(struct snd_rawmidi_substream *substream, int count)
{
@@ -1101,11 +1138,12 @@ int snd_rawmidi_transmit_ack(struct snd_rawmidi_substream *substream, int count)
struct snd_rawmidi_runtime *runtime = substream->runtime;
if (runtime->buffer == NULL) {
- snd_printd("snd_rawmidi_transmit_ack: output is not active!!!\n");
+ rmidi_dbg(substream->rmidi,
+ "snd_rawmidi_transmit_ack: output is not active!!!\n");
return -EINVAL;
}
spin_lock_irqsave(&runtime->lock, flags);
- snd_assert(runtime->avail + count <= runtime->buffer_size, );
+ snd_BUG_ON(runtime->avail + count > runtime->buffer_size);
runtime->hw_ptr += count;
runtime->hw_ptr %= runtime->buffer_size;
runtime->avail += count;
@@ -1117,6 +1155,7 @@ int snd_rawmidi_transmit_ack(struct snd_rawmidi_substream *substream, int count)
spin_unlock_irqrestore(&runtime->lock, flags);
return count;
}
+EXPORT_SYMBOL(snd_rawmidi_transmit_ack);
/**
* snd_rawmidi_transmit - copy from the buffer to the device
@@ -1126,26 +1165,33 @@ int snd_rawmidi_transmit_ack(struct snd_rawmidi_substream *substream, int count)
*
* Copies data from the buffer to the device and advances the pointer.
*
- * Returns the copied size if successful, or a negative error code on failure.
+ * Return: The copied size if successful, or a negative error code on failure.
*/
int snd_rawmidi_transmit(struct snd_rawmidi_substream *substream,
unsigned char *buffer, int count)
{
+ if (!substream->opened)
+ return -EBADFD;
count = snd_rawmidi_transmit_peek(substream, buffer, count);
if (count < 0)
return count;
return snd_rawmidi_transmit_ack(substream, count);
}
+EXPORT_SYMBOL(snd_rawmidi_transmit);
static long snd_rawmidi_kernel_write1(struct snd_rawmidi_substream *substream,
- const unsigned char *buf, long count, int kernel)
+ const unsigned char __user *userbuf,
+ const unsigned char *kernelbuf,
+ long count)
{
unsigned long flags;
long count1, result;
struct snd_rawmidi_runtime *runtime = substream->runtime;
- snd_assert(buf != NULL, return -EINVAL);
- snd_assert(runtime->buffer != NULL, return -EINVAL);
+ if (snd_BUG_ON(!kernelbuf && !userbuf))
+ return -EINVAL;
+ if (snd_BUG_ON(!runtime->buffer))
+ return -EINVAL;
result = 0;
spin_lock_irqsave(&runtime->lock, flags);
@@ -1161,12 +1207,13 @@ static long snd_rawmidi_kernel_write1(struct snd_rawmidi_substream *substream,
count1 = count;
if (count1 > (long)runtime->avail)
count1 = runtime->avail;
- if (kernel) {
- memcpy(runtime->buffer + runtime->appl_ptr, buf, count1);
- } else {
+ if (kernelbuf)
+ memcpy(runtime->buffer + runtime->appl_ptr,
+ kernelbuf + result, count1);
+ else if (userbuf) {
spin_unlock_irqrestore(&runtime->lock, flags);
if (copy_from_user(runtime->buffer + runtime->appl_ptr,
- (char __user *)buf, count1)) {
+ userbuf + result, count1)) {
spin_lock_irqsave(&runtime->lock, flags);
result = result > 0 ? result : -EFAULT;
goto __end;
@@ -1177,7 +1224,6 @@ static long snd_rawmidi_kernel_write1(struct snd_rawmidi_substream *substream,
runtime->appl_ptr %= runtime->buffer_size;
runtime->avail -= count1;
result += count1;
- buf += count1;
count -= count1;
}
__end:
@@ -1191,8 +1237,9 @@ static long snd_rawmidi_kernel_write1(struct snd_rawmidi_substream *substream,
long snd_rawmidi_kernel_write(struct snd_rawmidi_substream *substream,
const unsigned char *buf, long count)
{
- return snd_rawmidi_kernel_write1(substream, buf, count, 1);
+ return snd_rawmidi_kernel_write1(substream, NULL, buf, count);
}
+EXPORT_SYMBOL(snd_rawmidi_kernel_write);
static ssize_t snd_rawmidi_write(struct file *file, const char __user *buf,
size_t count, loff_t *offset)
@@ -1224,6 +1271,8 @@ static ssize_t snd_rawmidi_write(struct file *file, const char __user *buf,
spin_unlock_irq(&runtime->lock);
timeout = schedule_timeout(30 * HZ);
remove_wait_queue(&runtime->sleep, &wait);
+ if (rfile->rmidi->card->shutdown)
+ return -ENODEV;
if (signal_pending(current))
return result > 0 ? result : -ERESTARTSYS;
if (!runtime->avail && !timeout)
@@ -1231,9 +1280,7 @@ static ssize_t snd_rawmidi_write(struct file *file, const char __user *buf,
spin_lock_irq(&runtime->lock);
}
spin_unlock_irq(&runtime->lock);
- count1 = snd_rawmidi_kernel_write1(substream,
- (unsigned char __force *)buf,
- count, 0);
+ count1 = snd_rawmidi_kernel_write1(substream, buf, NULL, count);
if (count1 < 0)
return result > 0 ? result : count1;
result += count1;
@@ -1242,7 +1289,7 @@ static ssize_t snd_rawmidi_write(struct file *file, const char __user *buf,
break;
count -= count1;
}
- if (file->f_flags & O_SYNC) {
+ if (file->f_flags & O_DSYNC) {
spin_lock_irq(&runtime->lock);
while (runtime->avail != runtime->buffer_size) {
wait_queue_t wait;
@@ -1310,20 +1357,23 @@ static void snd_rawmidi_proc_info_read(struct snd_info_entry *entry,
struct snd_rawmidi *rmidi;
struct snd_rawmidi_substream *substream;
struct snd_rawmidi_runtime *runtime;
- struct list_head *list;
rmidi = entry->private_data;
snd_iprintf(buffer, "%s\n\n", rmidi->name);
- down(&rmidi->open_mutex);
+ mutex_lock(&rmidi->open_mutex);
if (rmidi->info_flags & SNDRV_RAWMIDI_INFO_OUTPUT) {
- list_for_each(list, &rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT].substreams) {
- substream = list_entry(list, struct snd_rawmidi_substream, list);
+ list_for_each_entry(substream,
+ &rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT].substreams,
+ list) {
snd_iprintf(buffer,
"Output %d\n"
" Tx bytes : %lu\n",
substream->number,
(unsigned long) substream->bytes);
if (substream->opened) {
+ snd_iprintf(buffer,
+ " Owner PID : %d\n",
+ pid_vnr(substream->pid));
runtime = substream->runtime;
snd_iprintf(buffer,
" Mode : %s\n"
@@ -1336,14 +1386,18 @@ static void snd_rawmidi_proc_info_read(struct snd_info_entry *entry,
}
}
if (rmidi->info_flags & SNDRV_RAWMIDI_INFO_INPUT) {
- list_for_each(list, &rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT].substreams) {
- substream = list_entry(list, struct snd_rawmidi_substream, list);
+ list_for_each_entry(substream,
+ &rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT].substreams,
+ list) {
snd_iprintf(buffer,
"Input %d\n"
" Rx bytes : %lu\n",
substream->number,
(unsigned long) substream->bytes);
if (substream->opened) {
+ snd_iprintf(buffer,
+ " Owner PID : %d\n",
+ pid_vnr(substream->pid));
runtime = substream->runtime;
snd_iprintf(buffer,
" Buffer size : %lu\n"
@@ -1355,20 +1409,21 @@ static void snd_rawmidi_proc_info_read(struct snd_info_entry *entry,
}
}
}
- up(&rmidi->open_mutex);
+ mutex_unlock(&rmidi->open_mutex);
}
/*
* Register functions
*/
-static struct file_operations snd_rawmidi_f_ops =
+static const struct file_operations snd_rawmidi_f_ops =
{
.owner = THIS_MODULE,
.read = snd_rawmidi_read,
.write = snd_rawmidi_write,
.open = snd_rawmidi_open,
.release = snd_rawmidi_release,
+ .llseek = no_llseek,
.poll = snd_rawmidi_poll,
.unlocked_ioctl = snd_rawmidi_ioctl,
.compat_ioctl = snd_rawmidi_ioctl_compat,
@@ -1382,11 +1437,10 @@ static int snd_rawmidi_alloc_substreams(struct snd_rawmidi *rmidi,
struct snd_rawmidi_substream *substream;
int idx;
- INIT_LIST_HEAD(&stream->substreams);
for (idx = 0; idx < count; idx++) {
substream = kzalloc(sizeof(*substream), GFP_KERNEL);
if (substream == NULL) {
- snd_printk(KERN_ERR "rawmidi: cannot allocate substream\n");
+ rmidi_err(rmidi, "rawmidi: cannot allocate substream\n");
return -ENOMEM;
}
substream->stream = direction;
@@ -1411,7 +1465,7 @@ static int snd_rawmidi_alloc_substreams(struct snd_rawmidi *rmidi,
* Creates a new rawmidi instance.
* Use snd_rawmidi_set_ops() to set the operators to the new instance.
*
- * Returns zero if successful, or a negative error code on failure.
+ * Return: Zero if successful, or a negative error code on failure.
*/
int snd_rawmidi_new(struct snd_card *card, char *id, int device,
int output_count, int input_count,
@@ -1423,21 +1477,24 @@ int snd_rawmidi_new(struct snd_card *card, char *id, int device,
.dev_free = snd_rawmidi_dev_free,
.dev_register = snd_rawmidi_dev_register,
.dev_disconnect = snd_rawmidi_dev_disconnect,
- .dev_unregister = snd_rawmidi_dev_unregister
};
- snd_assert(rrawmidi != NULL, return -EINVAL);
- *rrawmidi = NULL;
- snd_assert(card != NULL, return -ENXIO);
+ if (snd_BUG_ON(!card))
+ return -ENXIO;
+ if (rrawmidi)
+ *rrawmidi = NULL;
rmidi = kzalloc(sizeof(*rmidi), GFP_KERNEL);
if (rmidi == NULL) {
- snd_printk(KERN_ERR "rawmidi: cannot allocate\n");
+ dev_err(card->dev, "rawmidi: cannot allocate\n");
return -ENOMEM;
}
rmidi->card = card;
rmidi->device = device;
- init_MUTEX(&rmidi->open_mutex);
+ mutex_init(&rmidi->open_mutex);
init_waitqueue_head(&rmidi->open_wait);
+ INIT_LIST_HEAD(&rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT].substreams);
+ INIT_LIST_HEAD(&rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT].substreams);
+
if (id != NULL)
strlcpy(rmidi->id, id, sizeof(rmidi->id));
if ((err = snd_rawmidi_alloc_substreams(rmidi,
@@ -1458,9 +1515,11 @@ int snd_rawmidi_new(struct snd_card *card, char *id, int device,
snd_rawmidi_free(rmidi);
return err;
}
- *rrawmidi = rmidi;
+ if (rrawmidi)
+ *rrawmidi = rmidi;
return 0;
}
+EXPORT_SYMBOL(snd_rawmidi_new);
static void snd_rawmidi_free_substreams(struct snd_rawmidi_str *stream)
{
@@ -1475,7 +1534,16 @@ static void snd_rawmidi_free_substreams(struct snd_rawmidi_str *stream)
static int snd_rawmidi_free(struct snd_rawmidi *rmidi)
{
- snd_assert(rmidi != NULL, return -ENXIO);
+ if (!rmidi)
+ return 0;
+
+ snd_info_free_entry(rmidi->proc_entry);
+ rmidi->proc_entry = NULL;
+ mutex_lock(&register_mutex);
+ if (rmidi->ops && rmidi->ops->dev_unregister)
+ rmidi->ops->dev_unregister(rmidi);
+ mutex_unlock(&register_mutex);
+
snd_rawmidi_free_substreams(&rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT]);
snd_rawmidi_free_substreams(&rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT]);
if (rmidi->private_free)
@@ -1507,9 +1575,9 @@ static int snd_rawmidi_dev_register(struct snd_device *device)
if (rmidi->device >= SNDRV_RAWMIDI_DEVICES)
return -ENOMEM;
- down(&register_mutex);
+ mutex_lock(&register_mutex);
if (snd_rawmidi_search(rmidi->card, rmidi->device)) {
- up(&register_mutex);
+ mutex_unlock(&register_mutex);
return -EBUSY;
}
list_add_tail(&rmidi->list, &snd_rawmidi_devices);
@@ -1517,16 +1585,17 @@ static int snd_rawmidi_dev_register(struct snd_device *device)
if ((err = snd_register_device(SNDRV_DEVICE_TYPE_RAWMIDI,
rmidi->card, rmidi->device,
&snd_rawmidi_f_ops, rmidi, name)) < 0) {
- snd_printk(KERN_ERR "unable to register rawmidi device %i:%i\n", rmidi->card->number, rmidi->device);
+ rmidi_err(rmidi, "unable to register rawmidi device %i:%i\n",
+ rmidi->card->number, rmidi->device);
list_del(&rmidi->list);
- up(&register_mutex);
+ mutex_unlock(&register_mutex);
return err;
}
if (rmidi->ops && rmidi->ops->dev_register &&
(err = rmidi->ops->dev_register(rmidi)) < 0) {
snd_unregister_device(SNDRV_DEVICE_TYPE_RAWMIDI, rmidi->card, rmidi->device);
list_del(&rmidi->list);
- up(&register_mutex);
+ mutex_unlock(&register_mutex);
return err;
}
#ifdef CONFIG_SND_OSSEMUL
@@ -1534,8 +1603,10 @@ static int snd_rawmidi_dev_register(struct snd_device *device)
if ((int)rmidi->device == midi_map[rmidi->card->number]) {
if (snd_register_oss_device(SNDRV_OSS_DEVICE_TYPE_MIDI,
rmidi->card, 0, &snd_rawmidi_f_ops,
- rmidi, name) < 0) {
- snd_printk(KERN_ERR "unable to register OSS rawmidi device %i:%i\n", rmidi->card->number, 0);
+ rmidi) < 0) {
+ rmidi_err(rmidi,
+ "unable to register OSS rawmidi device %i:%i\n",
+ rmidi->card->number, 0);
} else {
rmidi->ossreg++;
#ifdef SNDRV_OSS_INFO_DEV_MIDI
@@ -1546,19 +1617,20 @@ static int snd_rawmidi_dev_register(struct snd_device *device)
if ((int)rmidi->device == amidi_map[rmidi->card->number]) {
if (snd_register_oss_device(SNDRV_OSS_DEVICE_TYPE_MIDI,
rmidi->card, 1, &snd_rawmidi_f_ops,
- rmidi, name) < 0) {
- snd_printk(KERN_ERR "unable to register OSS rawmidi device %i:%i\n", rmidi->card->number, 1);
+ rmidi) < 0) {
+ rmidi_err(rmidi,
+ "unable to register OSS rawmidi device %i:%i\n",
+ rmidi->card->number, 1);
} else {
rmidi->ossreg++;
}
}
#endif /* CONFIG_SND_OSSEMUL */
- up(&register_mutex);
+ mutex_unlock(&register_mutex);
sprintf(name, "midi%d", rmidi->device);
entry = snd_info_create_card_entry(rmidi->card, name, rmidi->card->proc_root);
if (entry) {
entry->private_data = rmidi;
- entry->c.text.read_size = 1024;
entry->c.text.read = snd_rawmidi_proc_info_read;
if (snd_info_register(entry) < 0) {
snd_info_free_entry(entry);
@@ -1582,24 +1654,20 @@ static int snd_rawmidi_dev_register(struct snd_device *device)
static int snd_rawmidi_dev_disconnect(struct snd_device *device)
{
struct snd_rawmidi *rmidi = device->device_data;
+ int dir;
- down(&register_mutex);
+ mutex_lock(&register_mutex);
+ mutex_lock(&rmidi->open_mutex);
+ wake_up(&rmidi->open_wait);
list_del_init(&rmidi->list);
- up(&register_mutex);
- return 0;
-}
-
-static int snd_rawmidi_dev_unregister(struct snd_device *device)
-{
- struct snd_rawmidi *rmidi = device->device_data;
-
- snd_assert(rmidi != NULL, return -ENXIO);
- down(&register_mutex);
- list_del(&rmidi->list);
- if (rmidi->proc_entry) {
- snd_info_unregister(rmidi->proc_entry);
- rmidi->proc_entry = NULL;
+ for (dir = 0; dir < 2; dir++) {
+ struct snd_rawmidi_substream *s;
+ list_for_each_entry(s, &rmidi->streams[dir].substreams, list) {
+ if (s->runtime)
+ wake_up(&s->runtime->sleep);
+ }
}
+
#ifdef CONFIG_SND_OSSEMUL
if (rmidi->ossreg) {
if ((int)rmidi->device == midi_map[rmidi->card->number]) {
@@ -1613,17 +1681,10 @@ static int snd_rawmidi_dev_unregister(struct snd_device *device)
rmidi->ossreg = 0;
}
#endif /* CONFIG_SND_OSSEMUL */
- if (rmidi->ops && rmidi->ops->dev_unregister)
- rmidi->ops->dev_unregister(rmidi);
snd_unregister_device(SNDRV_DEVICE_TYPE_RAWMIDI, rmidi->card, rmidi->device);
- up(&register_mutex);
-#if defined(CONFIG_SND_SEQUENCER) || (defined(MODULE) && defined(CONFIG_SND_SEQUENCER_MODULE))
- if (rmidi->seq_dev) {
- snd_device_free(rmidi->card, rmidi->seq_dev);
- rmidi->seq_dev = NULL;
- }
-#endif
- return snd_rawmidi_free(rmidi);
+ mutex_unlock(&rmidi->open_mutex);
+ mutex_unlock(&register_mutex);
+ return 0;
}
/**
@@ -1637,14 +1698,12 @@ static int snd_rawmidi_dev_unregister(struct snd_device *device)
void snd_rawmidi_set_ops(struct snd_rawmidi *rmidi, int stream,
struct snd_rawmidi_ops *ops)
{
- struct list_head *list;
struct snd_rawmidi_substream *substream;
- list_for_each(list, &rmidi->streams[stream].substreams) {
- substream = list_entry(list, struct snd_rawmidi_substream, list);
+ list_for_each_entry(substream, &rmidi->streams[stream].substreams, list)
substream->ops = ops;
- }
}
+EXPORT_SYMBOL(snd_rawmidi_set_ops);
/*
* ENTRY functions
@@ -1660,11 +1719,13 @@ static int __init alsa_rawmidi_init(void)
/* check device map table */
for (i = 0; i < SNDRV_CARDS; i++) {
if (midi_map[i] < 0 || midi_map[i] >= SNDRV_RAWMIDI_DEVICES) {
- snd_printk(KERN_ERR "invalid midi_map[%d] = %d\n", i, midi_map[i]);
+ pr_err("ALSA: rawmidi: invalid midi_map[%d] = %d\n",
+ i, midi_map[i]);
midi_map[i] = 0;
}
if (amidi_map[i] < 0 || amidi_map[i] >= SNDRV_RAWMIDI_DEVICES) {
- snd_printk(KERN_ERR "invalid amidi_map[%d] = %d\n", i, amidi_map[i]);
+ pr_err("ALSA: rawmidi: invalid amidi_map[%d] = %d\n",
+ i, amidi_map[i]);
amidi_map[i] = 1;
}
}
@@ -1681,21 +1742,3 @@ static void __exit alsa_rawmidi_exit(void)
module_init(alsa_rawmidi_init)
module_exit(alsa_rawmidi_exit)
-
-EXPORT_SYMBOL(snd_rawmidi_output_params);
-EXPORT_SYMBOL(snd_rawmidi_input_params);
-EXPORT_SYMBOL(snd_rawmidi_drop_output);
-EXPORT_SYMBOL(snd_rawmidi_drain_output);
-EXPORT_SYMBOL(snd_rawmidi_drain_input);
-EXPORT_SYMBOL(snd_rawmidi_receive);
-EXPORT_SYMBOL(snd_rawmidi_transmit_empty);
-EXPORT_SYMBOL(snd_rawmidi_transmit_peek);
-EXPORT_SYMBOL(snd_rawmidi_transmit_ack);
-EXPORT_SYMBOL(snd_rawmidi_transmit);
-EXPORT_SYMBOL(snd_rawmidi_new);
-EXPORT_SYMBOL(snd_rawmidi_set_ops);
-EXPORT_SYMBOL(snd_rawmidi_info_select);
-EXPORT_SYMBOL(snd_rawmidi_kernel_open);
-EXPORT_SYMBOL(snd_rawmidi_kernel_release);
-EXPORT_SYMBOL(snd_rawmidi_kernel_read);
-EXPORT_SYMBOL(snd_rawmidi_kernel_write);
diff --git a/sound/core/rtctimer.c b/sound/core/rtctimer.c
index 84704ccb182..f3420d11a12 100644
--- a/sound/core/rtctimer.c
+++ b/sound/core/rtctimer.c
@@ -20,17 +20,14 @@
*
*/
-#include <sound/driver.h>
#include <linux/init.h>
-#include <linux/time.h>
-#include <linux/threads.h>
#include <linux/interrupt.h>
-#include <linux/moduleparam.h>
+#include <linux/module.h>
+#include <linux/log2.h>
#include <sound/core.h>
#include <sound/timer.h>
-#include <sound/info.h>
-#if defined(CONFIG_RTC) || defined(CONFIG_RTC_MODULE)
+#if IS_ENABLED(CONFIG_RTC)
#include <linux/mc146818rtc.h>
@@ -50,7 +47,9 @@ static int rtctimer_stop(struct snd_timer *t);
* The hardware dependent description for this timer.
*/
static struct snd_timer_hardware rtc_hw = {
- .flags = SNDRV_TIMER_HW_FIRST|SNDRV_TIMER_HW_AUTO,
+ .flags = SNDRV_TIMER_HW_AUTO |
+ SNDRV_TIMER_HW_FIRST |
+ SNDRV_TIMER_HW_TASKLET,
.ticks = 100000000L, /* FIXME: XXX */
.open = rtctimer_open,
.close = rtctimer_close,
@@ -60,6 +59,7 @@ static struct snd_timer_hardware rtc_hw = {
static int rtctimer_freq = RTC_FREQ; /* frequency */
static struct snd_timer *rtctimer;
+static struct tasklet_struct rtc_tasklet;
static rtc_task_t rtc_task;
@@ -81,6 +81,7 @@ rtctimer_close(struct snd_timer *t)
rtc_task_t *rtc = t->private_data;
if (rtc) {
rtc_unregister(rtc);
+ tasklet_kill(&rtc_tasklet);
t->private_data = NULL;
}
return 0;
@@ -90,7 +91,8 @@ static int
rtctimer_start(struct snd_timer *timer)
{
rtc_task_t *rtc = timer->private_data;
- snd_assert(rtc != NULL, return -EINVAL);
+ if (snd_BUG_ON(!rtc))
+ return -EINVAL;
rtc_control(rtc, RTC_IRQP_SET, rtctimer_freq);
rtc_control(rtc, RTC_PIE_ON, 0);
return 0;
@@ -100,17 +102,23 @@ static int
rtctimer_stop(struct snd_timer *timer)
{
rtc_task_t *rtc = timer->private_data;
- snd_assert(rtc != NULL, return -EINVAL);
+ if (snd_BUG_ON(!rtc))
+ return -EINVAL;
rtc_control(rtc, RTC_PIE_OFF, 0);
return 0;
}
+static void rtctimer_tasklet(unsigned long data)
+{
+ snd_timer_interrupt((struct snd_timer *)data, 1);
+}
+
/*
* interrupt
*/
static void rtctimer_interrupt(void *private_data)
{
- snd_timer_interrupt(private_data, 1);
+ tasklet_schedule(private_data);
}
@@ -123,9 +131,8 @@ static int __init rtctimer_init(void)
struct snd_timer *timer;
if (rtctimer_freq < 2 || rtctimer_freq > 8192 ||
- (rtctimer_freq & (rtctimer_freq - 1)) != 0) {
- snd_printk(KERN_ERR "rtctimer: invalid frequency %d\n",
- rtctimer_freq);
+ !is_power_of_2(rtctimer_freq)) {
+ pr_err("ALSA: rtctimer: invalid frequency %d\n", rtctimer_freq);
return -EINVAL;
}
@@ -139,9 +146,11 @@ static int __init rtctimer_init(void)
timer->hw = rtc_hw;
timer->hw.resolution = NANO_SEC / rtctimer_freq;
+ tasklet_init(&rtc_tasklet, rtctimer_tasklet, (unsigned long)timer);
+
/* set up RTC callback */
rtc_task.func = rtctimer_interrupt;
- rtc_task.private_data = timer;
+ rtc_task.private_data = &rtc_tasklet;
err = snd_timer_global_register(timer);
if (err < 0) {
@@ -156,7 +165,7 @@ static int __init rtctimer_init(void)
static void __exit rtctimer_exit(void)
{
if (rtctimer) {
- snd_timer_global_unregister(rtctimer);
+ snd_timer_global_free(rtctimer);
rtctimer = NULL;
}
}
@@ -175,4 +184,4 @@ MODULE_LICENSE("GPL");
MODULE_ALIAS("snd-timer-" __stringify(SNDRV_TIMER_GLOBAL_RTC));
-#endif /* CONFIG_RTC || CONFIG_RTC_MODULE */
+#endif /* IS_ENABLED(CONFIG_RTC) */
diff --git a/sound/core/seq/Kconfig b/sound/core/seq/Kconfig
new file mode 100644
index 00000000000..b851fd890a8
--- /dev/null
+++ b/sound/core/seq/Kconfig
@@ -0,0 +1,16 @@
+# define SND_XXX_SEQ to min(SND_SEQUENCER,SND_XXX)
+
+config SND_RAWMIDI_SEQ
+ def_tristate SND_SEQUENCER && SND_RAWMIDI
+
+config SND_OPL3_LIB_SEQ
+ def_tristate SND_SEQUENCER && SND_OPL3_LIB
+
+config SND_OPL4_LIB_SEQ
+ def_tristate SND_SEQUENCER && SND_OPL4_LIB
+
+config SND_SBAWE_SEQ
+ def_tristate SND_SEQUENCER && SND_SBAWE
+
+config SND_EMU10K1_SEQ
+ def_tristate SND_SEQUENCER && SND_EMU10K1
diff --git a/sound/core/seq/Makefile b/sound/core/seq/Makefile
index 402e2b4a34c..941f64a853e 100644
--- a/sound/core/seq/Makefile
+++ b/sound/core/seq/Makefile
@@ -1,13 +1,8 @@
#
# Makefile for ALSA
-# Copyright (c) 1999 by Jaroslav Kysela <perex@suse.cz>
+# Copyright (c) 1999 by Jaroslav Kysela <perex@perex.cz>
#
-obj-$(CONFIG_SND) += instr/
-ifeq ($(CONFIG_SND_SEQUENCER_OSS),y)
- obj-$(CONFIG_SND_SEQUENCER) += oss/
-endif
-
snd-seq-device-objs := seq_device.o
snd-seq-objs := seq.o seq_lock.o seq_clientmgr.o seq_memory.o seq_queue.o \
seq_fifo.o seq_prioq.o seq_timer.o \
@@ -15,30 +10,20 @@ snd-seq-objs := seq.o seq_lock.o seq_clientmgr.o seq_memory.o seq_queue.o \
snd-seq-midi-objs := seq_midi.o
snd-seq-midi-emul-objs := seq_midi_emul.o
snd-seq-midi-event-objs := seq_midi_event.o
-snd-seq-instr-objs := seq_instr.o
snd-seq-dummy-objs := seq_dummy.o
snd-seq-virmidi-objs := seq_virmidi.o
-#
-# this function returns:
-# "m" - CONFIG_SND_SEQUENCER is m
-# <empty string> - CONFIG_SND_SEQUENCER is undefined
-# otherwise parameter #1 value
-#
-sequencer = $(if $(subst y,,$(CONFIG_SND_SEQUENCER)),$(if $(1),m),$(if $(CONFIG_SND_SEQUENCER),$(1)))
-
obj-$(CONFIG_SND_SEQUENCER) += snd-seq.o snd-seq-device.o
ifeq ($(CONFIG_SND_SEQUENCER_OSS),y)
-obj-$(CONFIG_SND_SEQUENCER) += snd-seq-midi-event.o
+ obj-$(CONFIG_SND_SEQUENCER) += snd-seq-midi-event.o
+ obj-$(CONFIG_SND_SEQUENCER) += oss/
endif
obj-$(CONFIG_SND_SEQ_DUMMY) += snd-seq-dummy.o
# Toplevel Module Dependency
obj-$(CONFIG_SND_VIRMIDI) += snd-seq-virmidi.o snd-seq-midi-event.o
-obj-$(call sequencer,$(CONFIG_SND_RAWMIDI)) += snd-seq-midi.o snd-seq-midi-event.o
-obj-$(call sequencer,$(CONFIG_SND_OPL3_LIB)) += snd-seq-midi-event.o snd-seq-midi-emul.o snd-seq-instr.o
-obj-$(call sequencer,$(CONFIG_SND_OPL4_LIB)) += snd-seq-midi-event.o snd-seq-midi-emul.o snd-seq-instr.o
-obj-$(call sequencer,$(CONFIG_SND_GUS_SYNTH)) += snd-seq-midi-emul.o snd-seq-instr.o
-obj-$(call sequencer,$(CONFIG_SND_SBAWE)) += snd-seq-midi-emul.o snd-seq-virmidi.o
-obj-$(call sequencer,$(CONFIG_SND_EMU10K1)) += snd-seq-midi-emul.o snd-seq-virmidi.o
-obj-$(call sequencer,$(CONFIG_SND_TRIDENT)) += snd-seq-midi-emul.o snd-seq-instr.o
+obj-$(CONFIG_SND_RAWMIDI_SEQ) += snd-seq-midi.o snd-seq-midi-event.o
+obj-$(CONFIG_SND_OPL3_LIB_SEQ) += snd-seq-midi-event.o snd-seq-midi-emul.o
+obj-$(CONFIG_SND_OPL4_LIB_SEQ) += snd-seq-midi-event.o snd-seq-midi-emul.o
+obj-$(CONFIG_SND_SBAWE_SEQ) += snd-seq-midi-emul.o snd-seq-virmidi.o
+obj-$(CONFIG_SND_EMU10K1_SEQ) += snd-seq-midi-emul.o snd-seq-virmidi.o
diff --git a/sound/core/seq/instr/Makefile b/sound/core/seq/instr/Makefile
deleted file mode 100644
index 69138f30a29..00000000000
--- a/sound/core/seq/instr/Makefile
+++ /dev/null
@@ -1,23 +0,0 @@
-#
-# Makefile for ALSA
-# Copyright (c) 1999 by Jaroslav Kysela <perex@suse.cz>
-#
-
-snd-ainstr-fm-objs := ainstr_fm.o
-snd-ainstr-simple-objs := ainstr_simple.o
-snd-ainstr-gf1-objs := ainstr_gf1.o
-snd-ainstr-iw-objs := ainstr_iw.o
-
-#
-# this function returns:
-# "m" - CONFIG_SND_SEQUENCER is m
-# <empty string> - CONFIG_SND_SEQUENCER is undefined
-# otherwise parameter #1 value
-#
-sequencer = $(if $(subst y,,$(CONFIG_SND_SEQUENCER)),$(if $(1),m),$(if $(CONFIG_SND_SEQUENCER),$(1)))
-
-# Toplevel Module Dependency
-obj-$(call sequencer,$(CONFIG_SND_OPL3_LIB)) += snd-ainstr-fm.o
-obj-$(call sequencer,$(CONFIG_SND_OPL4_LIB)) += snd-ainstr-fm.o
-obj-$(call sequencer,$(CONFIG_SND_GUS_SYNTH)) += snd-ainstr-gf1.o snd-ainstr-simple.o snd-ainstr-iw.o
-obj-$(call sequencer,$(CONFIG_SND_TRIDENT)) += snd-ainstr-simple.o
diff --git a/sound/core/seq/instr/ainstr_fm.c b/sound/core/seq/instr/ainstr_fm.c
deleted file mode 100644
index b09babf272c..00000000000
--- a/sound/core/seq/instr/ainstr_fm.c
+++ /dev/null
@@ -1,156 +0,0 @@
-/*
- * FM (OPL2/3) Instrument routines
- * Copyright (c) 2000 Uros Bizjak <uros@kss-loka.si>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-#include <sound/driver.h>
-#include <linux/init.h>
-#include <linux/sched.h>
-#include <sound/core.h>
-#include <sound/ainstr_fm.h>
-#include <sound/initval.h>
-#include <asm/uaccess.h>
-
-MODULE_AUTHOR("Uros Bizjak <uros@kss-loka.si>");
-MODULE_DESCRIPTION("Advanced Linux Sound Architecture FM Instrument support.");
-MODULE_LICENSE("GPL");
-
-static int snd_seq_fm_put(void *private_data, struct snd_seq_kinstr *instr,
- char __user *instr_data, long len, int atomic, int cmd)
-{
- struct fm_instrument *ip;
- struct fm_xinstrument ix;
- int idx;
-
- if (cmd != SNDRV_SEQ_INSTR_PUT_CMD_CREATE)
- return -EINVAL;
- /* copy instrument data */
- if (len < (long)sizeof(ix))
- return -EINVAL;
- if (copy_from_user(&ix, instr_data, sizeof(ix)))
- return -EFAULT;
- if (ix.stype != FM_STRU_INSTR)
- return -EINVAL;
- ip = (struct fm_instrument *)KINSTR_DATA(instr);
- ip->share_id[0] = le32_to_cpu(ix.share_id[0]);
- ip->share_id[1] = le32_to_cpu(ix.share_id[1]);
- ip->share_id[2] = le32_to_cpu(ix.share_id[2]);
- ip->share_id[3] = le32_to_cpu(ix.share_id[3]);
- ip->type = ix.type;
- for (idx = 0; idx < 4; idx++) {
- ip->op[idx].am_vib = ix.op[idx].am_vib;
- ip->op[idx].ksl_level = ix.op[idx].ksl_level;
- ip->op[idx].attack_decay = ix.op[idx].attack_decay;
- ip->op[idx].sustain_release = ix.op[idx].sustain_release;
- ip->op[idx].wave_select = ix.op[idx].wave_select;
- }
- for (idx = 0; idx < 2; idx++) {
- ip->feedback_connection[idx] = ix.feedback_connection[idx];
- }
- ip->echo_delay = ix.echo_delay;
- ip->echo_atten = ix.echo_atten;
- ip->chorus_spread = ix.chorus_spread;
- ip->trnsps = ix.trnsps;
- ip->fix_dur = ix.fix_dur;
- ip->modes = ix.modes;
- ip->fix_key = ix.fix_key;
- return 0;
-}
-
-static int snd_seq_fm_get(void *private_data, struct snd_seq_kinstr *instr,
- char __user *instr_data, long len, int atomic,
- int cmd)
-{
- struct fm_instrument *ip;
- struct fm_xinstrument ix;
- int idx;
-
- if (cmd != SNDRV_SEQ_INSTR_GET_CMD_FULL)
- return -EINVAL;
- if (len < (long)sizeof(ix))
- return -ENOMEM;
- memset(&ix, 0, sizeof(ix));
- ip = (struct fm_instrument *)KINSTR_DATA(instr);
- ix.stype = FM_STRU_INSTR;
- ix.share_id[0] = cpu_to_le32(ip->share_id[0]);
- ix.share_id[1] = cpu_to_le32(ip->share_id[1]);
- ix.share_id[2] = cpu_to_le32(ip->share_id[2]);
- ix.share_id[3] = cpu_to_le32(ip->share_id[3]);
- ix.type = ip->type;
- for (idx = 0; idx < 4; idx++) {
- ix.op[idx].am_vib = ip->op[idx].am_vib;
- ix.op[idx].ksl_level = ip->op[idx].ksl_level;
- ix.op[idx].attack_decay = ip->op[idx].attack_decay;
- ix.op[idx].sustain_release = ip->op[idx].sustain_release;
- ix.op[idx].wave_select = ip->op[idx].wave_select;
- }
- for (idx = 0; idx < 2; idx++) {
- ix.feedback_connection[idx] = ip->feedback_connection[idx];
- }
- if (copy_to_user(instr_data, &ix, sizeof(ix)))
- return -EFAULT;
- ix.echo_delay = ip->echo_delay;
- ix.echo_atten = ip->echo_atten;
- ix.chorus_spread = ip->chorus_spread;
- ix.trnsps = ip->trnsps;
- ix.fix_dur = ip->fix_dur;
- ix.modes = ip->modes;
- ix.fix_key = ip->fix_key;
- return 0;
-}
-
-static int snd_seq_fm_get_size(void *private_data, struct snd_seq_kinstr *instr,
- long *size)
-{
- *size = sizeof(struct fm_xinstrument);
- return 0;
-}
-
-int snd_seq_fm_init(struct snd_seq_kinstr_ops *ops,
- struct snd_seq_kinstr_ops *next)
-{
- memset(ops, 0, sizeof(*ops));
- // ops->private_data = private_data;
- ops->add_len = sizeof(struct fm_instrument);
- ops->instr_type = SNDRV_SEQ_INSTR_ID_OPL2_3;
- ops->put = snd_seq_fm_put;
- ops->get = snd_seq_fm_get;
- ops->get_size = snd_seq_fm_get_size;
- // ops->remove = snd_seq_fm_remove;
- // ops->notify = snd_seq_fm_notify;
- ops->next = next;
- return 0;
-}
-
-/*
- * Init part
- */
-
-static int __init alsa_ainstr_fm_init(void)
-{
- return 0;
-}
-
-static void __exit alsa_ainstr_fm_exit(void)
-{
-}
-
-module_init(alsa_ainstr_fm_init)
-module_exit(alsa_ainstr_fm_exit)
-
-EXPORT_SYMBOL(snd_seq_fm_init);
diff --git a/sound/core/seq/instr/ainstr_gf1.c b/sound/core/seq/instr/ainstr_gf1.c
deleted file mode 100644
index 3c31038a74b..00000000000
--- a/sound/core/seq/instr/ainstr_gf1.c
+++ /dev/null
@@ -1,360 +0,0 @@
-/*
- * GF1 (GUS) Patch - Instrument routines
- * Copyright (c) 1999 by Jaroslav Kysela <perex@suse.cz>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-#include <sound/driver.h>
-#include <linux/init.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <sound/core.h>
-#include <sound/ainstr_gf1.h>
-#include <sound/initval.h>
-#include <asm/uaccess.h>
-
-MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
-MODULE_DESCRIPTION("Advanced Linux Sound Architecture GF1 (GUS) Patch support.");
-MODULE_LICENSE("GPL");
-
-static unsigned int snd_seq_gf1_size(unsigned int size, unsigned int format)
-{
- unsigned int result = size;
-
- if (format & GF1_WAVE_16BIT)
- result <<= 1;
- if (format & GF1_WAVE_STEREO)
- result <<= 1;
- return format;
-}
-
-static int snd_seq_gf1_copy_wave_from_stream(struct snd_gf1_ops *ops,
- struct gf1_instrument *ip,
- char __user **data,
- long *len,
- int atomic)
-{
- struct gf1_wave *wp, *prev;
- struct gf1_xwave xp;
- int err;
- gfp_t gfp_mask;
- unsigned int real_size;
-
- gfp_mask = atomic ? GFP_ATOMIC : GFP_KERNEL;
- if (*len < (long)sizeof(xp))
- return -EINVAL;
- if (copy_from_user(&xp, *data, sizeof(xp)))
- return -EFAULT;
- *data += sizeof(xp);
- *len -= sizeof(xp);
- wp = kzalloc(sizeof(*wp), gfp_mask);
- if (wp == NULL)
- return -ENOMEM;
- wp->share_id[0] = le32_to_cpu(xp.share_id[0]);
- wp->share_id[1] = le32_to_cpu(xp.share_id[1]);
- wp->share_id[2] = le32_to_cpu(xp.share_id[2]);
- wp->share_id[3] = le32_to_cpu(xp.share_id[3]);
- wp->format = le32_to_cpu(xp.format);
- wp->size = le32_to_cpu(xp.size);
- wp->start = le32_to_cpu(xp.start);
- wp->loop_start = le32_to_cpu(xp.loop_start);
- wp->loop_end = le32_to_cpu(xp.loop_end);
- wp->loop_repeat = le16_to_cpu(xp.loop_repeat);
- wp->flags = xp.flags;
- wp->sample_rate = le32_to_cpu(xp.sample_rate);
- wp->low_frequency = le32_to_cpu(xp.low_frequency);
- wp->high_frequency = le32_to_cpu(xp.high_frequency);
- wp->root_frequency = le32_to_cpu(xp.root_frequency);
- wp->tune = le16_to_cpu(xp.tune);
- wp->balance = xp.balance;
- memcpy(wp->envelope_rate, xp.envelope_rate, 6);
- memcpy(wp->envelope_offset, xp.envelope_offset, 6);
- wp->tremolo_sweep = xp.tremolo_sweep;
- wp->tremolo_rate = xp.tremolo_rate;
- wp->tremolo_depth = xp.tremolo_depth;
- wp->vibrato_sweep = xp.vibrato_sweep;
- wp->vibrato_rate = xp.vibrato_rate;
- wp->vibrato_depth = xp.vibrato_depth;
- wp->scale_frequency = le16_to_cpu(xp.scale_frequency);
- wp->scale_factor = le16_to_cpu(xp.scale_factor);
- real_size = snd_seq_gf1_size(wp->size, wp->format);
- if ((long)real_size > *len) {
- kfree(wp);
- return -ENOMEM;
- }
- if (ops->put_sample) {
- err = ops->put_sample(ops->private_data, wp,
- *data, real_size, atomic);
- if (err < 0) {
- kfree(wp);
- return err;
- }
- }
- *data += real_size;
- *len -= real_size;
- prev = ip->wave;
- if (prev) {
- while (prev->next) prev = prev->next;
- prev->next = wp;
- } else {
- ip->wave = wp;
- }
- return 0;
-}
-
-static void snd_seq_gf1_wave_free(struct snd_gf1_ops *ops,
- struct gf1_wave *wave,
- int atomic)
-{
- if (ops->remove_sample)
- ops->remove_sample(ops->private_data, wave, atomic);
- kfree(wave);
-}
-
-static void snd_seq_gf1_instr_free(struct snd_gf1_ops *ops,
- struct gf1_instrument *ip,
- int atomic)
-{
- struct gf1_wave *wave;
-
- while ((wave = ip->wave) != NULL) {
- ip->wave = wave->next;
- snd_seq_gf1_wave_free(ops, wave, atomic);
- }
-}
-
-static int snd_seq_gf1_put(void *private_data, struct snd_seq_kinstr *instr,
- char __user *instr_data, long len, int atomic,
- int cmd)
-{
- struct snd_gf1_ops *ops = private_data;
- struct gf1_instrument *ip;
- struct gf1_xinstrument ix;
- int err;
- gfp_t gfp_mask;
-
- if (cmd != SNDRV_SEQ_INSTR_PUT_CMD_CREATE)
- return -EINVAL;
- gfp_mask = atomic ? GFP_ATOMIC : GFP_KERNEL;
- /* copy instrument data */
- if (len < (long)sizeof(ix))
- return -EINVAL;
- if (copy_from_user(&ix, instr_data, sizeof(ix)))
- return -EFAULT;
- if (ix.stype != GF1_STRU_INSTR)
- return -EINVAL;
- instr_data += sizeof(ix);
- len -= sizeof(ix);
- ip = (struct gf1_instrument *)KINSTR_DATA(instr);
- ip->exclusion = le16_to_cpu(ix.exclusion);
- ip->exclusion_group = le16_to_cpu(ix.exclusion_group);
- ip->effect1 = ix.effect1;
- ip->effect1_depth = ix.effect1_depth;
- ip->effect2 = ix.effect2;
- ip->effect2_depth = ix.effect2_depth;
- /* copy layers */
- while (len > (long)sizeof(__u32)) {
- __u32 stype;
-
- if (copy_from_user(&stype, instr_data, sizeof(stype)))
- return -EFAULT;
- if (stype != GF1_STRU_WAVE) {
- snd_seq_gf1_instr_free(ops, ip, atomic);
- return -EINVAL;
- }
- err = snd_seq_gf1_copy_wave_from_stream(ops,
- ip,
- &instr_data,
- &len,
- atomic);
- if (err < 0) {
- snd_seq_gf1_instr_free(ops, ip, atomic);
- return err;
- }
- }
- return 0;
-}
-
-static int snd_seq_gf1_copy_wave_to_stream(struct snd_gf1_ops *ops,
- struct gf1_instrument *ip,
- char __user **data,
- long *len,
- int atomic)
-{
- struct gf1_wave *wp;
- struct gf1_xwave xp;
- int err;
- unsigned int real_size;
-
- for (wp = ip->wave; wp; wp = wp->next) {
- if (*len < (long)sizeof(xp))
- return -ENOMEM;
- memset(&xp, 0, sizeof(xp));
- xp.stype = GF1_STRU_WAVE;
- xp.share_id[0] = cpu_to_le32(wp->share_id[0]);
- xp.share_id[1] = cpu_to_le32(wp->share_id[1]);
- xp.share_id[2] = cpu_to_le32(wp->share_id[2]);
- xp.share_id[3] = cpu_to_le32(wp->share_id[3]);
- xp.format = cpu_to_le32(wp->format);
- xp.size = cpu_to_le32(wp->size);
- xp.start = cpu_to_le32(wp->start);
- xp.loop_start = cpu_to_le32(wp->loop_start);
- xp.loop_end = cpu_to_le32(wp->loop_end);
- xp.loop_repeat = cpu_to_le32(wp->loop_repeat);
- xp.flags = wp->flags;
- xp.sample_rate = cpu_to_le32(wp->sample_rate);
- xp.low_frequency = cpu_to_le32(wp->low_frequency);
- xp.high_frequency = cpu_to_le32(wp->high_frequency);
- xp.root_frequency = cpu_to_le32(wp->root_frequency);
- xp.tune = cpu_to_le16(wp->tune);
- xp.balance = wp->balance;
- memcpy(xp.envelope_rate, wp->envelope_rate, 6);
- memcpy(xp.envelope_offset, wp->envelope_offset, 6);
- xp.tremolo_sweep = wp->tremolo_sweep;
- xp.tremolo_rate = wp->tremolo_rate;
- xp.tremolo_depth = wp->tremolo_depth;
- xp.vibrato_sweep = wp->vibrato_sweep;
- xp.vibrato_rate = wp->vibrato_rate;
- xp.vibrato_depth = wp->vibrato_depth;
- xp.scale_frequency = cpu_to_le16(wp->scale_frequency);
- xp.scale_factor = cpu_to_le16(wp->scale_factor);
- if (copy_to_user(*data, &xp, sizeof(xp)))
- return -EFAULT;
- *data += sizeof(xp);
- *len -= sizeof(xp);
- real_size = snd_seq_gf1_size(wp->size, wp->format);
- if (*len < (long)real_size)
- return -ENOMEM;
- if (ops->get_sample) {
- err = ops->get_sample(ops->private_data, wp,
- *data, real_size, atomic);
- if (err < 0)
- return err;
- }
- *data += wp->size;
- *len -= wp->size;
- }
- return 0;
-}
-
-static int snd_seq_gf1_get(void *private_data, struct snd_seq_kinstr *instr,
- char __user *instr_data, long len, int atomic,
- int cmd)
-{
- struct snd_gf1_ops *ops = private_data;
- struct gf1_instrument *ip;
- struct gf1_xinstrument ix;
-
- if (cmd != SNDRV_SEQ_INSTR_GET_CMD_FULL)
- return -EINVAL;
- if (len < (long)sizeof(ix))
- return -ENOMEM;
- memset(&ix, 0, sizeof(ix));
- ip = (struct gf1_instrument *)KINSTR_DATA(instr);
- ix.stype = GF1_STRU_INSTR;
- ix.exclusion = cpu_to_le16(ip->exclusion);
- ix.exclusion_group = cpu_to_le16(ip->exclusion_group);
- ix.effect1 = cpu_to_le16(ip->effect1);
- ix.effect1_depth = cpu_to_le16(ip->effect1_depth);
- ix.effect2 = ip->effect2;
- ix.effect2_depth = ip->effect2_depth;
- if (copy_to_user(instr_data, &ix, sizeof(ix)))
- return -EFAULT;
- instr_data += sizeof(ix);
- len -= sizeof(ix);
- return snd_seq_gf1_copy_wave_to_stream(ops,
- ip,
- &instr_data,
- &len,
- atomic);
-}
-
-static int snd_seq_gf1_get_size(void *private_data, struct snd_seq_kinstr *instr,
- long *size)
-{
- long result;
- struct gf1_instrument *ip;
- struct gf1_wave *wp;
-
- *size = 0;
- ip = (struct gf1_instrument *)KINSTR_DATA(instr);
- result = sizeof(struct gf1_xinstrument);
- for (wp = ip->wave; wp; wp = wp->next) {
- result += sizeof(struct gf1_xwave);
- result += wp->size;
- }
- *size = result;
- return 0;
-}
-
-static int snd_seq_gf1_remove(void *private_data,
- struct snd_seq_kinstr *instr,
- int atomic)
-{
- struct snd_gf1_ops *ops = private_data;
- struct gf1_instrument *ip;
-
- ip = (struct gf1_instrument *)KINSTR_DATA(instr);
- snd_seq_gf1_instr_free(ops, ip, atomic);
- return 0;
-}
-
-static void snd_seq_gf1_notify(void *private_data,
- struct snd_seq_kinstr *instr,
- int what)
-{
- struct snd_gf1_ops *ops = private_data;
-
- if (ops->notify)
- ops->notify(ops->private_data, instr, what);
-}
-
-int snd_seq_gf1_init(struct snd_gf1_ops *ops,
- void *private_data,
- struct snd_seq_kinstr_ops *next)
-{
- memset(ops, 0, sizeof(*ops));
- ops->private_data = private_data;
- ops->kops.private_data = ops;
- ops->kops.add_len = sizeof(struct gf1_instrument);
- ops->kops.instr_type = SNDRV_SEQ_INSTR_ID_GUS_PATCH;
- ops->kops.put = snd_seq_gf1_put;
- ops->kops.get = snd_seq_gf1_get;
- ops->kops.get_size = snd_seq_gf1_get_size;
- ops->kops.remove = snd_seq_gf1_remove;
- ops->kops.notify = snd_seq_gf1_notify;
- ops->kops.next = next;
- return 0;
-}
-
-/*
- * Init part
- */
-
-static int __init alsa_ainstr_gf1_init(void)
-{
- return 0;
-}
-
-static void __exit alsa_ainstr_gf1_exit(void)
-{
-}
-
-module_init(alsa_ainstr_gf1_init)
-module_exit(alsa_ainstr_gf1_exit)
-
-EXPORT_SYMBOL(snd_seq_gf1_init);
diff --git a/sound/core/seq/instr/ainstr_iw.c b/sound/core/seq/instr/ainstr_iw.c
deleted file mode 100644
index 7f8df19ba56..00000000000
--- a/sound/core/seq/instr/ainstr_iw.c
+++ /dev/null
@@ -1,624 +0,0 @@
-/*
- * IWFFFF - AMD InterWave (tm) - Instrument routines
- * Copyright (c) 1999 by Jaroslav Kysela <perex@suse.cz>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-#include <sound/driver.h>
-#include <linux/init.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <sound/core.h>
-#include <sound/ainstr_iw.h>
-#include <sound/initval.h>
-#include <asm/uaccess.h>
-
-MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
-MODULE_DESCRIPTION("Advanced Linux Sound Architecture IWFFFF support.");
-MODULE_LICENSE("GPL");
-
-static unsigned int snd_seq_iwffff_size(unsigned int size, unsigned int format)
-{
- unsigned int result = size;
-
- if (format & IWFFFF_WAVE_16BIT)
- result <<= 1;
- if (format & IWFFFF_WAVE_STEREO)
- result <<= 1;
- return result;
-}
-
-static void snd_seq_iwffff_copy_lfo_from_stream(struct iwffff_lfo *fp,
- struct iwffff_xlfo *fx)
-{
- fp->freq = le16_to_cpu(fx->freq);
- fp->depth = le16_to_cpu(fx->depth);
- fp->sweep = le16_to_cpu(fx->sweep);
- fp->shape = fx->shape;
- fp->delay = fx->delay;
-}
-
-static int snd_seq_iwffff_copy_env_from_stream(__u32 req_stype,
- struct iwffff_layer *lp,
- struct iwffff_env *ep,
- struct iwffff_xenv *ex,
- char __user **data,
- long *len,
- gfp_t gfp_mask)
-{
- __u32 stype;
- struct iwffff_env_record *rp, *rp_last;
- struct iwffff_xenv_record rx;
- struct iwffff_env_point *pp;
- struct iwffff_xenv_point px;
- int points_size, idx;
-
- ep->flags = ex->flags;
- ep->mode = ex->mode;
- ep->index = ex->index;
- rp_last = NULL;
- while (1) {
- if (*len < (long)sizeof(__u32))
- return -EINVAL;
- if (copy_from_user(&stype, *data, sizeof(stype)))
- return -EFAULT;
- if (stype == IWFFFF_STRU_WAVE)
- return 0;
- if (req_stype != stype) {
- if (stype == IWFFFF_STRU_ENV_RECP ||
- stype == IWFFFF_STRU_ENV_RECV)
- return 0;
- }
- if (*len < (long)sizeof(rx))
- return -EINVAL;
- if (copy_from_user(&rx, *data, sizeof(rx)))
- return -EFAULT;
- *data += sizeof(rx);
- *len -= sizeof(rx);
- points_size = (le16_to_cpu(rx.nattack) + le16_to_cpu(rx.nrelease)) * 2 * sizeof(__u16);
- if (points_size > *len)
- return -EINVAL;
- rp = kzalloc(sizeof(*rp) + points_size, gfp_mask);
- if (rp == NULL)
- return -ENOMEM;
- rp->nattack = le16_to_cpu(rx.nattack);
- rp->nrelease = le16_to_cpu(rx.nrelease);
- rp->sustain_offset = le16_to_cpu(rx.sustain_offset);
- rp->sustain_rate = le16_to_cpu(rx.sustain_rate);
- rp->release_rate = le16_to_cpu(rx.release_rate);
- rp->hirange = rx.hirange;
- pp = (struct iwffff_env_point *)(rp + 1);
- for (idx = 0; idx < rp->nattack + rp->nrelease; idx++) {
- if (copy_from_user(&px, *data, sizeof(px)))
- return -EFAULT;
- *data += sizeof(px);
- *len -= sizeof(px);
- pp->offset = le16_to_cpu(px.offset);
- pp->rate = le16_to_cpu(px.rate);
- }
- if (ep->record == NULL) {
- ep->record = rp;
- } else {
- rp_last = rp;
- }
- rp_last = rp;
- }
- return 0;
-}
-
-static int snd_seq_iwffff_copy_wave_from_stream(struct snd_iwffff_ops *ops,
- struct iwffff_layer *lp,
- char __user **data,
- long *len,
- int atomic)
-{
- struct iwffff_wave *wp, *prev;
- struct iwffff_xwave xp;
- int err;
- gfp_t gfp_mask;
- unsigned int real_size;
-
- gfp_mask = atomic ? GFP_ATOMIC : GFP_KERNEL;
- if (*len < (long)sizeof(xp))
- return -EINVAL;
- if (copy_from_user(&xp, *data, sizeof(xp)))
- return -EFAULT;
- *data += sizeof(xp);
- *len -= sizeof(xp);
- wp = kzalloc(sizeof(*wp), gfp_mask);
- if (wp == NULL)
- return -ENOMEM;
- wp->share_id[0] = le32_to_cpu(xp.share_id[0]);
- wp->share_id[1] = le32_to_cpu(xp.share_id[1]);
- wp->share_id[2] = le32_to_cpu(xp.share_id[2]);
- wp->share_id[3] = le32_to_cpu(xp.share_id[3]);
- wp->format = le32_to_cpu(xp.format);
- wp->address.memory = le32_to_cpu(xp.offset);
- wp->size = le32_to_cpu(xp.size);
- wp->start = le32_to_cpu(xp.start);
- wp->loop_start = le32_to_cpu(xp.loop_start);
- wp->loop_end = le32_to_cpu(xp.loop_end);
- wp->loop_repeat = le16_to_cpu(xp.loop_repeat);
- wp->sample_ratio = le32_to_cpu(xp.sample_ratio);
- wp->attenuation = xp.attenuation;
- wp->low_note = xp.low_note;
- wp->high_note = xp.high_note;
- real_size = snd_seq_iwffff_size(wp->size, wp->format);
- if (!(wp->format & IWFFFF_WAVE_ROM)) {
- if ((long)real_size > *len) {
- kfree(wp);
- return -ENOMEM;
- }
- }
- if (ops->put_sample) {
- err = ops->put_sample(ops->private_data, wp,
- *data, real_size, atomic);
- if (err < 0) {
- kfree(wp);
- return err;
- }
- }
- if (!(wp->format & IWFFFF_WAVE_ROM)) {
- *data += real_size;
- *len -= real_size;
- }
- prev = lp->wave;
- if (prev) {
- while (prev->next) prev = prev->next;
- prev->next = wp;
- } else {
- lp->wave = wp;
- }
- return 0;
-}
-
-static void snd_seq_iwffff_env_free(struct snd_iwffff_ops *ops,
- struct iwffff_env *env,
- int atomic)
-{
- struct iwffff_env_record *rec;
-
- while ((rec = env->record) != NULL) {
- env->record = rec->next;
- kfree(rec);
- }
-}
-
-static void snd_seq_iwffff_wave_free(struct snd_iwffff_ops *ops,
- struct iwffff_wave *wave,
- int atomic)
-{
- if (ops->remove_sample)
- ops->remove_sample(ops->private_data, wave, atomic);
- kfree(wave);
-}
-
-static void snd_seq_iwffff_instr_free(struct snd_iwffff_ops *ops,
- struct iwffff_instrument *ip,
- int atomic)
-{
- struct iwffff_layer *layer;
- struct iwffff_wave *wave;
-
- while ((layer = ip->layer) != NULL) {
- ip->layer = layer->next;
- snd_seq_iwffff_env_free(ops, &layer->penv, atomic);
- snd_seq_iwffff_env_free(ops, &layer->venv, atomic);
- while ((wave = layer->wave) != NULL) {
- layer->wave = wave->next;
- snd_seq_iwffff_wave_free(ops, wave, atomic);
- }
- kfree(layer);
- }
-}
-
-static int snd_seq_iwffff_put(void *private_data, struct snd_seq_kinstr *instr,
- char __user *instr_data, long len, int atomic,
- int cmd)
-{
- struct snd_iwffff_ops *ops = private_data;
- struct iwffff_instrument *ip;
- struct iwffff_xinstrument ix;
- struct iwffff_layer *lp, *prev_lp;
- struct iwffff_xlayer lx;
- int err;
- gfp_t gfp_mask;
-
- if (cmd != SNDRV_SEQ_INSTR_PUT_CMD_CREATE)
- return -EINVAL;
- gfp_mask = atomic ? GFP_ATOMIC : GFP_KERNEL;
- /* copy instrument data */
- if (len < (long)sizeof(ix))
- return -EINVAL;
- if (copy_from_user(&ix, instr_data, sizeof(ix)))
- return -EFAULT;
- if (ix.stype != IWFFFF_STRU_INSTR)
- return -EINVAL;
- instr_data += sizeof(ix);
- len -= sizeof(ix);
- ip = (struct iwffff_instrument *)KINSTR_DATA(instr);
- ip->exclusion = le16_to_cpu(ix.exclusion);
- ip->layer_type = le16_to_cpu(ix.layer_type);
- ip->exclusion_group = le16_to_cpu(ix.exclusion_group);
- ip->effect1 = ix.effect1;
- ip->effect1_depth = ix.effect1_depth;
- ip->effect2 = ix.effect2;
- ip->effect2_depth = ix.effect2_depth;
- /* copy layers */
- prev_lp = NULL;
- while (len > 0) {
- if (len < (long)sizeof(struct iwffff_xlayer)) {
- snd_seq_iwffff_instr_free(ops, ip, atomic);
- return -EINVAL;
- }
- if (copy_from_user(&lx, instr_data, sizeof(lx)))
- return -EFAULT;
- instr_data += sizeof(lx);
- len -= sizeof(lx);
- if (lx.stype != IWFFFF_STRU_LAYER) {
- snd_seq_iwffff_instr_free(ops, ip, atomic);
- return -EINVAL;
- }
- lp = kzalloc(sizeof(*lp), gfp_mask);
- if (lp == NULL) {
- snd_seq_iwffff_instr_free(ops, ip, atomic);
- return -ENOMEM;
- }
- if (prev_lp) {
- prev_lp->next = lp;
- } else {
- ip->layer = lp;
- }
- prev_lp = lp;
- lp->flags = lx.flags;
- lp->velocity_mode = lx.velocity_mode;
- lp->layer_event = lx.layer_event;
- lp->low_range = lx.low_range;
- lp->high_range = lx.high_range;
- lp->pan = lx.pan;
- lp->pan_freq_scale = lx.pan_freq_scale;
- lp->attenuation = lx.attenuation;
- snd_seq_iwffff_copy_lfo_from_stream(&lp->tremolo, &lx.tremolo);
- snd_seq_iwffff_copy_lfo_from_stream(&lp->vibrato, &lx.vibrato);
- lp->freq_scale = le16_to_cpu(lx.freq_scale);
- lp->freq_center = lx.freq_center;
- err = snd_seq_iwffff_copy_env_from_stream(IWFFFF_STRU_ENV_RECP,
- lp,
- &lp->penv, &lx.penv,
- &instr_data, &len,
- gfp_mask);
- if (err < 0) {
- snd_seq_iwffff_instr_free(ops, ip, atomic);
- return err;
- }
- err = snd_seq_iwffff_copy_env_from_stream(IWFFFF_STRU_ENV_RECV,
- lp,
- &lp->venv, &lx.venv,
- &instr_data, &len,
- gfp_mask);
- if (err < 0) {
- snd_seq_iwffff_instr_free(ops, ip, atomic);
- return err;
- }
- while (len > (long)sizeof(__u32)) {
- __u32 stype;
-
- if (copy_from_user(&stype, instr_data, sizeof(stype)))
- return -EFAULT;
- if (stype != IWFFFF_STRU_WAVE)
- break;
- err = snd_seq_iwffff_copy_wave_from_stream(ops,
- lp,
- &instr_data,
- &len,
- atomic);
- if (err < 0) {
- snd_seq_iwffff_instr_free(ops, ip, atomic);
- return err;
- }
- }
- }
- return 0;
-}
-
-static void snd_seq_iwffff_copy_lfo_to_stream(struct iwffff_xlfo *fx,
- struct iwffff_lfo *fp)
-{
- fx->freq = cpu_to_le16(fp->freq);
- fx->depth = cpu_to_le16(fp->depth);
- fx->sweep = cpu_to_le16(fp->sweep);
- fp->shape = fx->shape;
- fp->delay = fx->delay;
-}
-
-static int snd_seq_iwffff_copy_env_to_stream(__u32 req_stype,
- struct iwffff_layer *lp,
- struct iwffff_xenv *ex,
- struct iwffff_env *ep,
- char __user **data,
- long *len)
-{
- struct iwffff_env_record *rp;
- struct iwffff_xenv_record rx;
- struct iwffff_env_point *pp;
- struct iwffff_xenv_point px;
- int points_size, idx;
-
- ex->flags = ep->flags;
- ex->mode = ep->mode;
- ex->index = ep->index;
- for (rp = ep->record; rp; rp = rp->next) {
- if (*len < (long)sizeof(rx))
- return -ENOMEM;
- memset(&rx, 0, sizeof(rx));
- rx.stype = req_stype;
- rx.nattack = cpu_to_le16(rp->nattack);
- rx.nrelease = cpu_to_le16(rp->nrelease);
- rx.sustain_offset = cpu_to_le16(rp->sustain_offset);
- rx.sustain_rate = cpu_to_le16(rp->sustain_rate);
- rx.release_rate = cpu_to_le16(rp->release_rate);
- rx.hirange = cpu_to_le16(rp->hirange);
- if (copy_to_user(*data, &rx, sizeof(rx)))
- return -EFAULT;
- *data += sizeof(rx);
- *len -= sizeof(rx);
- points_size = (rp->nattack + rp->nrelease) * 2 * sizeof(__u16);
- if (*len < points_size)
- return -ENOMEM;
- pp = (struct iwffff_env_point *)(rp + 1);
- for (idx = 0; idx < rp->nattack + rp->nrelease; idx++) {
- px.offset = cpu_to_le16(pp->offset);
- px.rate = cpu_to_le16(pp->rate);
- if (copy_to_user(*data, &px, sizeof(px)))
- return -EFAULT;
- *data += sizeof(px);
- *len -= sizeof(px);
- }
- }
- return 0;
-}
-
-static int snd_seq_iwffff_copy_wave_to_stream(struct snd_iwffff_ops *ops,
- struct iwffff_layer *lp,
- char __user **data,
- long *len,
- int atomic)
-{
- struct iwffff_wave *wp;
- struct iwffff_xwave xp;
- int err;
- unsigned int real_size;
-
- for (wp = lp->wave; wp; wp = wp->next) {
- if (*len < (long)sizeof(xp))
- return -ENOMEM;
- memset(&xp, 0, sizeof(xp));
- xp.stype = IWFFFF_STRU_WAVE;
- xp.share_id[0] = cpu_to_le32(wp->share_id[0]);
- xp.share_id[1] = cpu_to_le32(wp->share_id[1]);
- xp.share_id[2] = cpu_to_le32(wp->share_id[2]);
- xp.share_id[3] = cpu_to_le32(wp->share_id[3]);
- xp.format = cpu_to_le32(wp->format);
- if (wp->format & IWFFFF_WAVE_ROM)
- xp.offset = cpu_to_le32(wp->address.memory);
- xp.size = cpu_to_le32(wp->size);
- xp.start = cpu_to_le32(wp->start);
- xp.loop_start = cpu_to_le32(wp->loop_start);
- xp.loop_end = cpu_to_le32(wp->loop_end);
- xp.loop_repeat = cpu_to_le32(wp->loop_repeat);
- xp.sample_ratio = cpu_to_le32(wp->sample_ratio);
- xp.attenuation = wp->attenuation;
- xp.low_note = wp->low_note;
- xp.high_note = wp->high_note;
- if (copy_to_user(*data, &xp, sizeof(xp)))
- return -EFAULT;
- *data += sizeof(xp);
- *len -= sizeof(xp);
- real_size = snd_seq_iwffff_size(wp->size, wp->format);
- if (!(wp->format & IWFFFF_WAVE_ROM)) {
- if (*len < (long)real_size)
- return -ENOMEM;
- }
- if (ops->get_sample) {
- err = ops->get_sample(ops->private_data, wp,
- *data, real_size, atomic);
- if (err < 0)
- return err;
- }
- if (!(wp->format & IWFFFF_WAVE_ROM)) {
- *data += real_size;
- *len -= real_size;
- }
- }
- return 0;
-}
-
-static int snd_seq_iwffff_get(void *private_data, struct snd_seq_kinstr *instr,
- char __user *instr_data, long len, int atomic, int cmd)
-{
- struct snd_iwffff_ops *ops = private_data;
- struct iwffff_instrument *ip;
- struct iwffff_xinstrument ix;
- struct iwffff_layer *lp;
- struct iwffff_xlayer lx;
- char __user *layer_instr_data;
- int err;
-
- if (cmd != SNDRV_SEQ_INSTR_GET_CMD_FULL)
- return -EINVAL;
- if (len < (long)sizeof(ix))
- return -ENOMEM;
- memset(&ix, 0, sizeof(ix));
- ip = (struct iwffff_instrument *)KINSTR_DATA(instr);
- ix.stype = IWFFFF_STRU_INSTR;
- ix.exclusion = cpu_to_le16(ip->exclusion);
- ix.layer_type = cpu_to_le16(ip->layer_type);
- ix.exclusion_group = cpu_to_le16(ip->exclusion_group);
- ix.effect1 = cpu_to_le16(ip->effect1);
- ix.effect1_depth = cpu_to_le16(ip->effect1_depth);
- ix.effect2 = ip->effect2;
- ix.effect2_depth = ip->effect2_depth;
- if (copy_to_user(instr_data, &ix, sizeof(ix)))
- return -EFAULT;
- instr_data += sizeof(ix);
- len -= sizeof(ix);
- for (lp = ip->layer; lp; lp = lp->next) {
- if (len < (long)sizeof(lx))
- return -ENOMEM;
- memset(&lx, 0, sizeof(lx));
- lx.stype = IWFFFF_STRU_LAYER;
- lx.flags = lp->flags;
- lx.velocity_mode = lp->velocity_mode;
- lx.layer_event = lp->layer_event;
- lx.low_range = lp->low_range;
- lx.high_range = lp->high_range;
- lx.pan = lp->pan;
- lx.pan_freq_scale = lp->pan_freq_scale;
- lx.attenuation = lp->attenuation;
- snd_seq_iwffff_copy_lfo_to_stream(&lx.tremolo, &lp->tremolo);
- snd_seq_iwffff_copy_lfo_to_stream(&lx.vibrato, &lp->vibrato);
- layer_instr_data = instr_data;
- instr_data += sizeof(lx);
- len -= sizeof(lx);
- err = snd_seq_iwffff_copy_env_to_stream(IWFFFF_STRU_ENV_RECP,
- lp,
- &lx.penv, &lp->penv,
- &instr_data, &len);
- if (err < 0)
- return err;
- err = snd_seq_iwffff_copy_env_to_stream(IWFFFF_STRU_ENV_RECV,
- lp,
- &lx.venv, &lp->venv,
- &instr_data, &len);
- if (err < 0)
- return err;
- /* layer structure updating is now finished */
- if (copy_to_user(layer_instr_data, &lx, sizeof(lx)))
- return -EFAULT;
- err = snd_seq_iwffff_copy_wave_to_stream(ops,
- lp,
- &instr_data,
- &len,
- atomic);
- if (err < 0)
- return err;
- }
- return 0;
-}
-
-static long snd_seq_iwffff_env_size_in_stream(struct iwffff_env *ep)
-{
- long result = 0;
- struct iwffff_env_record *rp;
-
- for (rp = ep->record; rp; rp = rp->next) {
- result += sizeof(struct iwffff_xenv_record);
- result += (rp->nattack + rp->nrelease) * 2 * sizeof(__u16);
- }
- return 0;
-}
-
-static long snd_seq_iwffff_wave_size_in_stream(struct iwffff_layer *lp)
-{
- long result = 0;
- struct iwffff_wave *wp;
-
- for (wp = lp->wave; wp; wp = wp->next) {
- result += sizeof(struct iwffff_xwave);
- if (!(wp->format & IWFFFF_WAVE_ROM))
- result += wp->size;
- }
- return result;
-}
-
-static int snd_seq_iwffff_get_size(void *private_data, struct snd_seq_kinstr *instr,
- long *size)
-{
- long result;
- struct iwffff_instrument *ip;
- struct iwffff_layer *lp;
-
- *size = 0;
- ip = (struct iwffff_instrument *)KINSTR_DATA(instr);
- result = sizeof(struct iwffff_xinstrument);
- for (lp = ip->layer; lp; lp = lp->next) {
- result += sizeof(struct iwffff_xlayer);
- result += snd_seq_iwffff_env_size_in_stream(&lp->penv);
- result += snd_seq_iwffff_env_size_in_stream(&lp->venv);
- result += snd_seq_iwffff_wave_size_in_stream(lp);
- }
- *size = result;
- return 0;
-}
-
-static int snd_seq_iwffff_remove(void *private_data,
- struct snd_seq_kinstr *instr,
- int atomic)
-{
- struct snd_iwffff_ops *ops = private_data;
- struct iwffff_instrument *ip;
-
- ip = (struct iwffff_instrument *)KINSTR_DATA(instr);
- snd_seq_iwffff_instr_free(ops, ip, atomic);
- return 0;
-}
-
-static void snd_seq_iwffff_notify(void *private_data,
- struct snd_seq_kinstr *instr,
- int what)
-{
- struct snd_iwffff_ops *ops = private_data;
-
- if (ops->notify)
- ops->notify(ops->private_data, instr, what);
-}
-
-int snd_seq_iwffff_init(struct snd_iwffff_ops *ops,
- void *private_data,
- struct snd_seq_kinstr_ops *next)
-{
- memset(ops, 0, sizeof(*ops));
- ops->private_data = private_data;
- ops->kops.private_data = ops;
- ops->kops.add_len = sizeof(struct iwffff_instrument);
- ops->kops.instr_type = SNDRV_SEQ_INSTR_ID_INTERWAVE;
- ops->kops.put = snd_seq_iwffff_put;
- ops->kops.get = snd_seq_iwffff_get;
- ops->kops.get_size = snd_seq_iwffff_get_size;
- ops->kops.remove = snd_seq_iwffff_remove;
- ops->kops.notify = snd_seq_iwffff_notify;
- ops->kops.next = next;
- return 0;
-}
-
-/*
- * Init part
- */
-
-static int __init alsa_ainstr_iw_init(void)
-{
- return 0;
-}
-
-static void __exit alsa_ainstr_iw_exit(void)
-{
-}
-
-module_init(alsa_ainstr_iw_init)
-module_exit(alsa_ainstr_iw_exit)
-
-EXPORT_SYMBOL(snd_seq_iwffff_init);
diff --git a/sound/core/seq/instr/ainstr_simple.c b/sound/core/seq/instr/ainstr_simple.c
deleted file mode 100644
index 6d6ffece7cb..00000000000
--- a/sound/core/seq/instr/ainstr_simple.c
+++ /dev/null
@@ -1,216 +0,0 @@
-/*
- * Simple (MOD player) - Instrument routines
- * Copyright (c) 1999 by Jaroslav Kysela <perex@suse.cz>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-#include <sound/driver.h>
-#include <linux/init.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <sound/core.h>
-#include <sound/ainstr_simple.h>
-#include <sound/initval.h>
-#include <asm/uaccess.h>
-
-MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
-MODULE_DESCRIPTION("Advanced Linux Sound Architecture Simple Instrument support.");
-MODULE_LICENSE("GPL");
-
-static unsigned int snd_seq_simple_size(unsigned int size, unsigned int format)
-{
- unsigned int result = size;
-
- if (format & SIMPLE_WAVE_16BIT)
- result <<= 1;
- if (format & SIMPLE_WAVE_STEREO)
- result <<= 1;
- return result;
-}
-
-static void snd_seq_simple_instr_free(struct snd_simple_ops *ops,
- struct simple_instrument *ip,
- int atomic)
-{
- if (ops->remove_sample)
- ops->remove_sample(ops->private_data, ip, atomic);
-}
-
-static int snd_seq_simple_put(void *private_data, struct snd_seq_kinstr *instr,
- char __user *instr_data, long len,
- int atomic, int cmd)
-{
- struct snd_simple_ops *ops = private_data;
- struct simple_instrument *ip;
- struct simple_xinstrument ix;
- int err;
- gfp_t gfp_mask;
- unsigned int real_size;
-
- if (cmd != SNDRV_SEQ_INSTR_PUT_CMD_CREATE)
- return -EINVAL;
- gfp_mask = atomic ? GFP_ATOMIC : GFP_KERNEL;
- /* copy instrument data */
- if (len < (long)sizeof(ix))
- return -EINVAL;
- if (copy_from_user(&ix, instr_data, sizeof(ix)))
- return -EFAULT;
- if (ix.stype != SIMPLE_STRU_INSTR)
- return -EINVAL;
- instr_data += sizeof(ix);
- len -= sizeof(ix);
- ip = (struct simple_instrument *)KINSTR_DATA(instr);
- ip->share_id[0] = le32_to_cpu(ix.share_id[0]);
- ip->share_id[1] = le32_to_cpu(ix.share_id[1]);
- ip->share_id[2] = le32_to_cpu(ix.share_id[2]);
- ip->share_id[3] = le32_to_cpu(ix.share_id[3]);
- ip->format = le32_to_cpu(ix.format);
- ip->size = le32_to_cpu(ix.size);
- ip->start = le32_to_cpu(ix.start);
- ip->loop_start = le32_to_cpu(ix.loop_start);
- ip->loop_end = le32_to_cpu(ix.loop_end);
- ip->loop_repeat = le16_to_cpu(ix.loop_repeat);
- ip->effect1 = ix.effect1;
- ip->effect1_depth = ix.effect1_depth;
- ip->effect2 = ix.effect2;
- ip->effect2_depth = ix.effect2_depth;
- real_size = snd_seq_simple_size(ip->size, ip->format);
- if (len < (long)real_size)
- return -EINVAL;
- if (ops->put_sample) {
- err = ops->put_sample(ops->private_data, ip,
- instr_data, real_size, atomic);
- if (err < 0)
- return err;
- }
- return 0;
-}
-
-static int snd_seq_simple_get(void *private_data, struct snd_seq_kinstr *instr,
- char __user *instr_data, long len,
- int atomic, int cmd)
-{
- struct snd_simple_ops *ops = private_data;
- struct simple_instrument *ip;
- struct simple_xinstrument ix;
- int err;
- unsigned int real_size;
-
- if (cmd != SNDRV_SEQ_INSTR_GET_CMD_FULL)
- return -EINVAL;
- if (len < (long)sizeof(ix))
- return -ENOMEM;
- memset(&ix, 0, sizeof(ix));
- ip = (struct simple_instrument *)KINSTR_DATA(instr);
- ix.stype = SIMPLE_STRU_INSTR;
- ix.share_id[0] = cpu_to_le32(ip->share_id[0]);
- ix.share_id[1] = cpu_to_le32(ip->share_id[1]);
- ix.share_id[2] = cpu_to_le32(ip->share_id[2]);
- ix.share_id[3] = cpu_to_le32(ip->share_id[3]);
- ix.format = cpu_to_le32(ip->format);
- ix.size = cpu_to_le32(ip->size);
- ix.start = cpu_to_le32(ip->start);
- ix.loop_start = cpu_to_le32(ip->loop_start);
- ix.loop_end = cpu_to_le32(ip->loop_end);
- ix.loop_repeat = cpu_to_le32(ip->loop_repeat);
- ix.effect1 = cpu_to_le16(ip->effect1);
- ix.effect1_depth = cpu_to_le16(ip->effect1_depth);
- ix.effect2 = ip->effect2;
- ix.effect2_depth = ip->effect2_depth;
- if (copy_to_user(instr_data, &ix, sizeof(ix)))
- return -EFAULT;
- instr_data += sizeof(ix);
- len -= sizeof(ix);
- real_size = snd_seq_simple_size(ip->size, ip->format);
- if (len < (long)real_size)
- return -ENOMEM;
- if (ops->get_sample) {
- err = ops->get_sample(ops->private_data, ip,
- instr_data, real_size, atomic);
- if (err < 0)
- return err;
- }
- return 0;
-}
-
-static int snd_seq_simple_get_size(void *private_data, struct snd_seq_kinstr *instr,
- long *size)
-{
- struct simple_instrument *ip;
-
- ip = (struct simple_instrument *)KINSTR_DATA(instr);
- *size = sizeof(struct simple_xinstrument) + snd_seq_simple_size(ip->size, ip->format);
- return 0;
-}
-
-static int snd_seq_simple_remove(void *private_data,
- struct snd_seq_kinstr *instr,
- int atomic)
-{
- struct snd_simple_ops *ops = private_data;
- struct simple_instrument *ip;
-
- ip = (struct simple_instrument *)KINSTR_DATA(instr);
- snd_seq_simple_instr_free(ops, ip, atomic);
- return 0;
-}
-
-static void snd_seq_simple_notify(void *private_data,
- struct snd_seq_kinstr *instr,
- int what)
-{
- struct snd_simple_ops *ops = private_data;
-
- if (ops->notify)
- ops->notify(ops->private_data, instr, what);
-}
-
-int snd_seq_simple_init(struct snd_simple_ops *ops,
- void *private_data,
- struct snd_seq_kinstr_ops *next)
-{
- memset(ops, 0, sizeof(*ops));
- ops->private_data = private_data;
- ops->kops.private_data = ops;
- ops->kops.add_len = sizeof(struct simple_instrument);
- ops->kops.instr_type = SNDRV_SEQ_INSTR_ID_SIMPLE;
- ops->kops.put = snd_seq_simple_put;
- ops->kops.get = snd_seq_simple_get;
- ops->kops.get_size = snd_seq_simple_get_size;
- ops->kops.remove = snd_seq_simple_remove;
- ops->kops.notify = snd_seq_simple_notify;
- ops->kops.next = next;
- return 0;
-}
-
-/*
- * Init part
- */
-
-static int __init alsa_ainstr_simple_init(void)
-{
- return 0;
-}
-
-static void __exit alsa_ainstr_simple_exit(void)
-{
-}
-
-module_init(alsa_ainstr_simple_init)
-module_exit(alsa_ainstr_simple_exit)
-
-EXPORT_SYMBOL(snd_seq_simple_init);
diff --git a/sound/core/seq/oss/Makefile b/sound/core/seq/oss/Makefile