diff options
Diffstat (limited to 'sound/oss')
44 files changed, 288 insertions, 7188 deletions
diff --git a/sound/oss/.gitignore b/sound/oss/.gitignore index 7efb12b4550..12a3920d6fb 100644 --- a/sound/oss/.gitignore +++ b/sound/oss/.gitignore @@ -1,4 +1,3 @@ #Ignore generated files -maui_boot.h pss_boot.h trix_boot.h diff --git a/sound/oss/Kconfig b/sound/oss/Kconfig index 76c09021807..48568fdf847 100644 --- a/sound/oss/Kconfig +++ b/sound/oss/Kconfig @@ -13,19 +13,6 @@ config SOUND_BCM_CS4297A note that CONFIG_KGDB should not be enabled at the same time, since it also attempts to use this UART port. -config SOUND_VWSND - tristate "SGI Visual Workstation Sound" - depends on X86_VISWS - help - Say Y or M if you have an SGI Visual Workstation and you want to be - able to use its on-board audio. Read - <file:Documentation/sound/oss/vwsnd> for more info on this driver's - capabilities. - -config SOUND_AU1550_AC97 - tristate "Au1550/Au1200 AC97 Sound" - depends on SOC_AU1550 || SOC_AU1200 - config SOUND_MSNDCLAS tristate "Support for Turtle Beach MultiSound Classic, Tahiti, Monterey" depends on (m || !STANDALONE) && ISA @@ -254,6 +241,7 @@ config MSND_FIFOSIZE menuconfig SOUND_OSS tristate "OSS sound modules" depends on ISA_DMA_API && VIRT_TO_BUS + depends on !GENERIC_ISA_DMA_SUPPORT_BROKEN help OSS is the Open Sound System suite of sound card drivers. They make sound programming easier since they provide a common API. Say Y or @@ -436,9 +424,7 @@ config SOUND_SB ALS-007 and ALS-1X0 chips (read <file:Documentation/sound/oss/ALS>) and for cards based on ESS chips (read <file:Documentation/sound/oss/ESS1868> and - <file:Documentation/sound/oss/ESS>). If you have an SB AWE 32 or SB AWE - 64, say Y here and also to "AWE32 synth" below and read - <file:Documentation/sound/oss/INSTALL.awe>. If you have an IBM Mwave + <file:Documentation/sound/oss/ESS>). If you have an IBM Mwave card, say Y here and read <file:Documentation/sound/oss/mwave>. If you compile the driver into the kernel and don't want to use @@ -527,7 +513,7 @@ config SC6600_CDROMBASE config SOUND_VIDC tristate "VIDC 16-bit sound" - depends on ARM && (ARCH_ACORN || ARCH_CLPS7500) + depends on ARM && ARCH_ACORN help 16-bit support for the VIDC onboard sound hardware found on Acorn machines. diff --git a/sound/oss/Makefile b/sound/oss/Makefile index 96f14dcd0cd..9bdbbde2173 100644 --- a/sound/oss/Makefile +++ b/sound/oss/Makefile @@ -24,8 +24,6 @@ obj-$(CONFIG_SOUND_VIDC) += vidc_mod.o obj-$(CONFIG_SOUND_WAVEARTIST) += waveartist.o obj-$(CONFIG_SOUND_MSNDCLAS) += msnd.o msnd_classic.o obj-$(CONFIG_SOUND_MSNDPIN) += msnd.o msnd_pinnacle.o -obj-$(CONFIG_SOUND_VWSND) += vwsnd.o -obj-$(CONFIG_SOUND_AU1550_AC97) += au1550_ac97.o ac97_codec.o obj-$(CONFIG_SOUND_BCM_CS4297A) += swarm_cs4297a.o obj-$(CONFIG_DMASOUND) += dmasound/ @@ -87,7 +85,7 @@ ifeq ($(CONFIG_PSS_HAVE_BOOT),y) $(obj)/bin2hex pss_synth < $< > $@ else $(obj)/pss_boot.h: - ( \ + $(Q)( \ echo 'static unsigned char * pss_synth = NULL;'; \ echo 'static int pss_synthLen = 0;'; \ ) > $@ @@ -102,7 +100,7 @@ ifeq ($(CONFIG_TRIX_HAVE_BOOT),y) $(obj)/hex2hex -i trix_boot < $< > $@ else $(obj)/trix_boot.h: - ( \ + $(Q)( \ echo 'static unsigned char * trix_boot = NULL;'; \ echo 'static int trix_boot_len = 0;'; \ ) > $@ diff --git a/sound/oss/ac97_codec.c b/sound/oss/ac97_codec.c deleted file mode 100644 index 854c303264d..00000000000 --- a/sound/oss/ac97_codec.c +++ /dev/null @@ -1,1203 +0,0 @@ -/* - * ac97_codec.c: Generic AC97 mixer/modem module - * - * Derived from ac97 mixer in maestro and trident driver. - * - * Copyright 2000 Silicon Integrated System Corporation - * - * 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., 675 Mass Ave, Cambridge, MA 02139, USA. - * - ************************************************************************** - * - * The Intel Audio Codec '97 specification is available at: - * http://download.intel.com/support/motherboards/desktop/sb/ac97_r23.pdf - * - ************************************************************************** - * - * History - * May 02, 2003 Liam Girdwood <lrg@slimlogic.co.uk> - * Removed non existant WM9700 - * Added support for WM9705, WM9708, WM9709, WM9710, WM9711 - * WM9712 and WM9717 - * Mar 28, 2002 Randolph Bentson <bentson@holmsjoen.com> - * corrections to support WM9707 in ViewPad 1000 - * v0.4 Mar 15 2000 Ollie Lho - * dual codecs support verified with 4 channels output - * v0.3 Feb 22 2000 Ollie Lho - * bug fix for record mask setting - * v0.2 Feb 10 2000 Ollie Lho - * add ac97_read_proc for /proc/driver/{vendor}/ac97 - * v0.1 Jan 14 2000 Ollie Lho <ollie@sis.com.tw> - * Isolated from trident.c to support multiple ac97 codec - */ -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/slab.h> -#include <linux/string.h> -#include <linux/errno.h> -#include <linux/bitops.h> -#include <linux/delay.h> -#include <linux/pci.h> -#include <linux/ac97_codec.h> -#include <asm/uaccess.h> -#include <linux/mutex.h> - -#define CODEC_ID_BUFSZ 14 - -static int ac97_read_mixer(struct ac97_codec *codec, int oss_channel); -static void ac97_write_mixer(struct ac97_codec *codec, int oss_channel, - unsigned int left, unsigned int right); -static void ac97_set_mixer(struct ac97_codec *codec, unsigned int oss_mixer, unsigned int val ); -static int ac97_recmask_io(struct ac97_codec *codec, int rw, int mask); -static int ac97_mixer_ioctl(struct ac97_codec *codec, unsigned int cmd, unsigned long arg); - -static int ac97_init_mixer(struct ac97_codec *codec); - -static int wolfson_init03(struct ac97_codec * codec); -static int wolfson_init04(struct ac97_codec * codec); -static int wolfson_init05(struct ac97_codec * codec); -static int wolfson_init11(struct ac97_codec * codec); -static int wolfson_init13(struct ac97_codec * codec); -static int tritech_init(struct ac97_codec * codec); -static int tritech_maestro_init(struct ac97_codec * codec); -static int sigmatel_9708_init(struct ac97_codec *codec); -static int sigmatel_9721_init(struct ac97_codec *codec); -static int sigmatel_9744_init(struct ac97_codec *codec); -static int ad1886_init(struct ac97_codec *codec); -static int eapd_control(struct ac97_codec *codec, int); -static int crystal_digital_control(struct ac97_codec *codec, int slots, int rate, int mode); -static int cmedia_init(struct ac97_codec * codec); -static int cmedia_digital_control(struct ac97_codec *codec, int slots, int rate, int mode); -static int generic_digital_control(struct ac97_codec *codec, int slots, int rate, int mode); - - -/* - * AC97 operations. - * - * If you are adding a codec then you should be able to use - * eapd_ops - any codec that supports EAPD amp control (most) - * null_ops - any ancient codec that supports nothing - * - * The three functions are - * init - used for non AC97 standard initialisation - * amplifier - used to do amplifier control (1=on 0=off) - * digital - switch to digital modes (0 = analog) - * - * Not all codecs support all features, not all drivers use all the - * operations yet - */ - -static struct ac97_ops null_ops = { NULL, NULL, NULL }; -static struct ac97_ops default_ops = { NULL, eapd_control, NULL }; -static struct ac97_ops default_digital_ops = { NULL, eapd_control, generic_digital_control}; -static struct ac97_ops wolfson_ops03 = { wolfson_init03, NULL, NULL }; -static struct ac97_ops wolfson_ops04 = { wolfson_init04, NULL, NULL }; -static struct ac97_ops wolfson_ops05 = { wolfson_init05, NULL, NULL }; -static struct ac97_ops wolfson_ops11 = { wolfson_init11, NULL, NULL }; -static struct ac97_ops wolfson_ops13 = { wolfson_init13, NULL, NULL }; -static struct ac97_ops tritech_ops = { tritech_init, NULL, NULL }; -static struct ac97_ops tritech_m_ops = { tritech_maestro_init, NULL, NULL }; -static struct ac97_ops sigmatel_9708_ops = { sigmatel_9708_init, NULL, NULL }; -static struct ac97_ops sigmatel_9721_ops = { sigmatel_9721_init, NULL, NULL }; -static struct ac97_ops sigmatel_9744_ops = { sigmatel_9744_init, NULL, NULL }; -static struct ac97_ops crystal_digital_ops = { NULL, eapd_control, crystal_digital_control }; -static struct ac97_ops ad1886_ops = { ad1886_init, eapd_control, NULL }; -static struct ac97_ops cmedia_ops = { NULL, eapd_control, NULL}; -static struct ac97_ops cmedia_digital_ops = { cmedia_init, eapd_control, cmedia_digital_control}; - -/* sorted by vendor/device id */ -static const struct { - u32 id; - char *name; - struct ac97_ops *ops; - int flags; -} ac97_codec_ids[] = { - {0x41445303, "Analog Devices AD1819", &null_ops}, - {0x41445340, "Analog Devices AD1881", &null_ops}, - {0x41445348, "Analog Devices AD1881A", &null_ops}, - {0x41445360, "Analog Devices AD1885", &default_ops}, - {0x41445361, "Analog Devices AD1886", &ad1886_ops}, - {0x41445370, "Analog Devices AD1981", &null_ops}, - {0x41445372, "Analog Devices AD1981A", &null_ops}, - {0x41445374, "Analog Devices AD1981B", &null_ops}, - {0x41445460, "Analog Devices AD1885", &default_ops}, - {0x41445461, "Analog Devices AD1886", &ad1886_ops}, - {0x414B4D00, "Asahi Kasei AK4540", &null_ops}, - {0x414B4D01, "Asahi Kasei AK4542", &null_ops}, - {0x414B4D02, "Asahi Kasei AK4543", &null_ops}, - {0x414C4326, "ALC100P", &null_ops}, - {0x414C4710, "ALC200/200P", &null_ops}, - {0x414C4720, "ALC650", &default_digital_ops}, - {0x434D4941, "CMedia", &cmedia_ops, AC97_NO_PCM_VOLUME }, - {0x434D4942, "CMedia", &cmedia_ops, AC97_NO_PCM_VOLUME }, - {0x434D4961, "CMedia", &cmedia_digital_ops, AC97_NO_PCM_VOLUME }, - {0x43525900, "Cirrus Logic CS4297", &default_ops}, - {0x43525903, "Cirrus Logic CS4297", &default_ops}, - {0x43525913, "Cirrus Logic CS4297A rev A", &default_ops}, - {0x43525914, "Cirrus Logic CS4297A rev B", &default_ops}, - {0x43525923, "Cirrus Logic CS4298", &null_ops}, - {0x4352592B, "Cirrus Logic CS4294", &null_ops}, - {0x4352592D, "Cirrus Logic CS4294", &null_ops}, - {0x43525931, "Cirrus Logic CS4299 rev A", &crystal_digital_ops}, - {0x43525933, "Cirrus Logic CS4299 rev C", &crystal_digital_ops}, - {0x43525934, "Cirrus Logic CS4299 rev D", &crystal_digital_ops}, - {0x43585430, "CXT48", &default_ops, AC97_DELUDED_MODEM }, - {0x43585442, "CXT66", &default_ops, AC97_DELUDED_MODEM }, - {0x44543031, "Diamond Technology DT0893", &default_ops}, - {0x45838308, "ESS Allegro ES1988", &null_ops}, - {0x49434511, "ICE1232", &null_ops}, /* I hope --jk */ - {0x4e534331, "National Semiconductor LM4549", &null_ops}, - {0x53494c22, "Silicon Laboratory Si3036", &null_ops}, - {0x53494c23, "Silicon Laboratory Si3038", &null_ops}, - {0x545200FF, "TriTech TR?????", &tritech_m_ops}, - {0x54524102, "TriTech TR28022", &null_ops}, - {0x54524103, "TriTech TR28023", &null_ops}, - {0x54524106, "TriTech TR28026", &null_ops}, - {0x54524108, "TriTech TR28028", &tritech_ops}, - {0x54524123, "TriTech TR A5", &null_ops}, - {0x574D4C03, "Wolfson WM9703/07/08/17", &wolfson_ops03}, - {0x574D4C04, "Wolfson WM9704M/WM9704Q", &wolfson_ops04}, - {0x574D4C05, "Wolfson WM9705/WM9710", &wolfson_ops05}, - {0x574D4C09, "Wolfson WM9709", &null_ops}, - {0x574D4C12, "Wolfson WM9711/9712", &wolfson_ops11}, - {0x574D4C13, "Wolfson WM9713", &wolfson_ops13, AC97_DEFAULT_POWER_OFF}, - {0x83847600, "SigmaTel STAC????", &null_ops}, - {0x83847604, "SigmaTel STAC9701/3/4/5", &null_ops}, - {0x83847605, "SigmaTel STAC9704", &null_ops}, - {0x83847608, "SigmaTel STAC9708", &sigmatel_9708_ops}, - {0x83847609, "SigmaTel STAC9721/23", &sigmatel_9721_ops}, - {0x83847644, "SigmaTel STAC9744/45", &sigmatel_9744_ops}, - {0x83847652, "SigmaTel STAC9752/53", &default_ops}, - {0x83847656, "SigmaTel STAC9756/57", &sigmatel_9744_ops}, - {0x83847666, "SigmaTel STAC9750T", &sigmatel_9744_ops}, - {0x83847684, "SigmaTel STAC9783/84?", &null_ops}, - {0x57454301, "Winbond 83971D", &null_ops}, -}; - -/* this table has default mixer values for all OSS mixers. */ -static struct mixer_defaults { - int mixer; - unsigned int value; -} mixer_defaults[SOUND_MIXER_NRDEVICES] = { - /* all values 0 -> 100 in bytes */ - {SOUND_MIXER_VOLUME, 0x4343}, - {SOUND_MIXER_BASS, 0x4343}, - {SOUND_MIXER_TREBLE, 0x4343}, - {SOUND_MIXER_PCM, 0x4343}, - {SOUND_MIXER_SPEAKER, 0x4343}, - {SOUND_MIXER_LINE, 0x4343}, - {SOUND_MIXER_MIC, 0x0000}, - {SOUND_MIXER_CD, 0x4343}, - {SOUND_MIXER_ALTPCM, 0x4343}, - {SOUND_MIXER_IGAIN, 0x4343}, - {SOUND_MIXER_LINE1, 0x4343}, - {SOUND_MIXER_PHONEIN, 0x4343}, - {SOUND_MIXER_PHONEOUT, 0x4343}, - {SOUND_MIXER_VIDEO, 0x4343}, - {-1,0} -}; - -/* table to scale scale from OSS mixer value to AC97 mixer register value */ -static struct ac97_mixer_hw { - unsigned char offset; - int scale; -} ac97_hw[SOUND_MIXER_NRDEVICES]= { - [SOUND_MIXER_VOLUME] = {AC97_MASTER_VOL_STEREO,64}, - [SOUND_MIXER_BASS] = {AC97_MASTER_TONE, 16}, - [SOUND_MIXER_TREBLE] = {AC97_MASTER_TONE, 16}, - [SOUND_MIXER_PCM] = {AC97_PCMOUT_VOL, 32}, - [SOUND_MIXER_SPEAKER] = {AC97_PCBEEP_VOL, 16}, - [SOUND_MIXER_LINE] = {AC97_LINEIN_VOL, 32}, - [SOUND_MIXER_MIC] = {AC97_MIC_VOL, 32}, - [SOUND_MIXER_CD] = {AC97_CD_VOL, 32}, - [SOUND_MIXER_ALTPCM] = {AC97_HEADPHONE_VOL, 64}, - [SOUND_MIXER_IGAIN] = {AC97_RECORD_GAIN, 16}, - [SOUND_MIXER_LINE1] = {AC97_AUX_VOL, 32}, - [SOUND_MIXER_PHONEIN] = {AC97_PHONE_VOL, 32}, - [SOUND_MIXER_PHONEOUT] = {AC97_MASTER_VOL_MONO, 64}, - [SOUND_MIXER_VIDEO] = {AC97_VIDEO_VOL, 32}, -}; - -/* the following tables allow us to go from OSS <-> ac97 quickly. */ -enum ac97_recsettings { - AC97_REC_MIC=0, - AC97_REC_CD, - AC97_REC_VIDEO, - AC97_REC_AUX, - AC97_REC_LINE, - AC97_REC_STEREO, /* combination of all enabled outputs.. */ - AC97_REC_MONO, /*.. or the mono equivalent */ - AC97_REC_PHONE -}; - -static const unsigned int ac97_rm2oss[] = { - [AC97_REC_MIC] = SOUND_MIXER_MIC, - [AC97_REC_CD] = SOUND_MIXER_CD, - [AC97_REC_VIDEO] = SOUND_MIXER_VIDEO, - [AC97_REC_AUX] = SOUND_MIXER_LINE1, - [AC97_REC_LINE] = SOUND_MIXER_LINE, - [AC97_REC_STEREO]= SOUND_MIXER_IGAIN, - [AC97_REC_PHONE] = SOUND_MIXER_PHONEIN -}; - -/* indexed by bit position */ -static const unsigned int ac97_oss_rm[] = { - [SOUND_MIXER_MIC] = AC97_REC_MIC, - [SOUND_MIXER_CD] = AC97_REC_CD, - [SOUND_MIXER_VIDEO] = AC97_REC_VIDEO, - [SOUND_MIXER_LINE1] = AC97_REC_AUX, - [SOUND_MIXER_LINE] = AC97_REC_LINE, - [SOUND_MIXER_IGAIN] = AC97_REC_STEREO, - [SOUND_MIXER_PHONEIN] = AC97_REC_PHONE -}; - -static LIST_HEAD(codecs); -static LIST_HEAD(codec_drivers); -static DEFINE_MUTEX(codec_mutex); - -/* reads the given OSS mixer from the ac97 the caller must have insured that the ac97 knows - about that given mixer, and should be holding a spinlock for the card */ -static int ac97_read_mixer(struct ac97_codec *codec, int oss_channel) -{ - u16 val; - int ret = 0; - int scale; - struct ac97_mixer_hw *mh = &ac97_hw[oss_channel]; - - val = codec->codec_read(codec , mh->offset); - - if (val & AC97_MUTE) { - ret = 0; - } else if (AC97_STEREO_MASK & (1 << oss_channel)) { - /* nice stereo mixers .. */ - int left,right; - - left = (val >> 8) & 0x7f; - right = val & 0x7f; - - if (oss_channel == SOUND_MIXER_IGAIN) { - right = (right * 100) / mh->scale; - left = (left * 100) / mh->scale; - } else { - /* these may have 5 or 6 bit resolution */ - if(oss_channel == SOUND_MIXER_VOLUME || oss_channel == SOUND_MIXER_ALTPCM) - scale = (1 << codec->bit_resolution); - else - scale = mh->scale; - - right = 100 - ((right * 100) / scale); - left = 100 - ((left * 100) / scale); - } - ret = left | (right << 8); - } else if (oss_channel == SOUND_MIXER_SPEAKER) { - ret = 100 - ((((val & 0x1e)>>1) * 100) / mh->scale); - } else if (oss_channel == SOUND_MIXER_PHONEIN) { - ret = 100 - (((val & 0x1f) * 100) / mh->scale); - } else if (oss_channel == SOUND_MIXER_PHONEOUT) { - scale = (1 << codec->bit_resolution); - ret = 100 - (((val & 0x1f) * 100) / scale); - } else if (oss_channel == SOUND_MIXER_MIC) { - ret = 100 - (((val & 0x1f) * 100) / mh->scale); - /* the low bit is optional in the tone sliders and masking - it lets us avoid the 0xf 'bypass'.. */ - } else if (oss_channel == SOUND_MIXER_BASS) { - ret = 100 - ((((val >> 8) & 0xe) * 100) / mh->scale); - } else if (oss_channel == SOUND_MIXER_TREBLE) { - ret = 100 - (((val & 0xe) * 100) / mh->scale); - } - -#ifdef DEBUG - printk("ac97_codec: read OSS mixer %2d (%s ac97 register 0x%02x), " - "0x%04x -> 0x%04x\n", - oss_channel, codec->id ? "Secondary" : "Primary", - mh->offset, val, ret); -#endif - - return ret; -} - -/* write the OSS encoded volume to the given OSS encoded mixer, again caller's job to - make sure all is well in arg land, call with spinlock held */ -static void ac97_write_mixer(struct ac97_codec *codec, int oss_channel, - unsigned int left, unsigned int right) -{ - u16 val = 0; - int scale; - struct ac97_mixer_hw *mh = &ac97_hw[oss_channel]; - -#ifdef DEBUG - printk("ac97_codec: wrote OSS mixer %2d (%s ac97 register 0x%02x), " - "left vol:%2d, right vol:%2d:", - oss_channel, codec->id ? "Secondary" : "Primary", - mh->offset, left, right); -#endif - - if (AC97_STEREO_MASK & (1 << oss_channel)) { - /* stereo mixers */ - if (left == 0 && right == 0) { - val = AC97_MUTE; - } else { - if (oss_channel == SOUND_MIXER_IGAIN) { - right = (right * mh->scale) / 100; - left = (left * mh->scale) / 100; - if (right >= mh->scale) - right = mh->scale-1; - if (left >= mh->scale) - left = mh->scale-1; - } else { - /* these may have 5 or 6 bit resolution */ - if (oss_channel == SOUND_MIXER_VOLUME || - oss_channel == SOUND_MIXER_ALTPCM) - scale = (1 << codec->bit_resolution); - else - scale = mh->scale; - - right = ((100 - right) * scale) / 100; - left = ((100 - left) * scale) / 100; - if (right >= scale) - right = scale-1; - if (left >= scale) - left = scale-1; - } - val = (left << 8) | right; - } - } else if (oss_channel == SOUND_MIXER_BASS) { - val = codec->codec_read(codec , mh->offset) & ~0x0f00; - left = ((100 - left) * mh->scale) / 100; - if (left >= mh->scale) - left = mh->scale-1; - val |= (left << 8) & 0x0e00; - } else if (oss_channel == SOUND_MIXER_TREBLE) { - val = codec->codec_read(codec , mh->offset) & ~0x000f; - left = ((100 - left) * mh->scale) / 100; - if (left >= mh->scale) - left = mh->scale-1; - val |= left & 0x000e; - } else if(left == 0) { - val = AC97_MUTE; - } else if (oss_channel == SOUND_MIXER_SPEAKER) { - left = ((100 - left) * mh->scale) / 100; - if (left >= mh->scale) - left = mh->scale-1; - val = left << 1; - } else if (oss_channel == SOUND_MIXER_PHONEIN) { - left = ((100 - left) * mh->scale) / 100; - if (left >= mh->scale) - left = mh->scale-1; - val = left; - } else if (oss_channel == SOUND_MIXER_PHONEOUT) { - scale = (1 << codec->bit_resolution); - left = ((100 - left) * scale) / 100; - if (left >= mh->scale) - left = mh->scale-1; - val = left; - } else if (oss_channel == SOUND_MIXER_MIC) { - val = codec->codec_read(codec , mh->offset) & ~0x801f; - left = ((100 - left) * mh->scale) / 100; - if (left >= mh->scale) - left = mh->scale-1; - val |= left; - /* the low bit is optional in the tone sliders and masking - it lets us avoid the 0xf 'bypass'.. */ - } -#ifdef DEBUG - printk(" 0x%04x", val); -#endif - - codec->codec_write(codec, mh->offset, val); - -#ifdef DEBUG - val = codec->codec_read(codec, mh->offset); - printk(" -> 0x%04x\n", val); -#endif -} - -/* a thin wrapper for write_mixer */ -static void ac97_set_mixer(struct ac97_codec *codec, unsigned int oss_mixer, unsigned int val ) -{ - unsigned int left,right; - - /* cleanse input a little */ - right = ((val >> 8) & 0xff) ; - left = (val & 0xff) ; - - if (right > 100) right = 100; - if (left > 100) left = 100; - - codec->mixer_state[oss_mixer] = (right << 8) | left; - codec->write_mixer(codec, oss_mixer, left, right); -} - -/* read or write the recmask, the ac97 can really have left and right recording - inputs independantly set, but OSS doesn't seem to want us to express that to - the user. the caller guarantees that we have a supported bit set, and they - must be holding the card's spinlock */ -static int ac97_recmask_io(struct ac97_codec *codec, int rw, int mask) -{ - unsigned int val; - - if (rw) { - /* read it from the card */ - val = codec->codec_read(codec, AC97_RECORD_SELECT); -#ifdef DEBUG - printk("ac97_codec: ac97 recmask to set to 0x%04x\n", val); -#endif - return (1 << ac97_rm2oss[val & 0x07]); - } - - /* else, write the first set in the mask as the - output */ - /* clear out current set value first (AC97 supports only 1 input!) */ - val = (1 << ac97_rm2oss[codec->codec_read(codec, AC97_RECORD_SELECT) & 0x07]); - if (mask != val) - mask &= ~val; - - val = ffs(mask); - val = ac97_oss_rm[val-1]; - val |= val << 8; /* set both channels */ - -#ifdef DEBUG - printk("ac97_codec: setting ac97 recmask to 0x%04x\n", val); -#endif - - codec->codec_write(codec, AC97_RECORD_SELECT, val); - - return 0; -}; - -static int ac97_mixer_ioctl(struct ac97_codec *codec, unsigned int cmd, unsigned long arg) -{ - int i, val = 0; - - if (cmd == SOUND_MIXER_INFO) { - mixer_info info; - memset(&info, 0, sizeof(info)); - strlcpy(info.id, codec->name, sizeof(info.id)); - strlcpy(info.name, codec->name, sizeof(info.name)); - info.modify_counter = codec->modcnt; - if (copy_to_user((void __user *)arg, &info, sizeof(info))) - return -EFAULT; - return 0; - } - if (cmd == SOUND_OLD_MIXER_INFO) { - _old_mixer_info info; - memset(&info, 0, sizeof(info)); - strlcpy(info.id, codec->name, sizeof(info.id)); - strlcpy(info.name, codec->name, sizeof(info.name)); - if (copy_to_user((void __user *)arg, &info, sizeof(info))) - return -EFAULT; - return 0; - } - - if (_IOC_TYPE(cmd) != 'M' || _SIOC_SIZE(cmd) != sizeof(int)) - return -EINVAL; - - if (cmd == OSS_GETVERSION) - return put_user(SOUND_VERSION, (int __user *)arg); - - if (_SIOC_DIR(cmd) == _SIOC_READ) { - switch (_IOC_NR(cmd)) { - case SOUND_MIXER_RECSRC: /* give them the current record source */ - if (!codec->recmask_io) { - val = 0; - } else { - val = codec->recmask_io(codec, 1, 0); - } - break; - - case SOUND_MIXER_DEVMASK: /* give them the supported mixers */ - val = codec->supported_mixers; - break; - - case SOUND_MIXER_RECMASK: /* Arg contains a bit for each supported recording source */ - val = codec->record_sources; - break; - - case SOUND_MIXER_STEREODEVS: /* Mixer channels supporting stereo */ - val = codec->stereo_mixers; - break; - - case SOUND_MIXER_CAPS: - val = SOUND_CAP_EXCL_INPUT; - break; - - default: /* read a specific mixer */ - i = _IOC_NR(cmd); - - if (!supported_mixer(codec, i)) - return -EINVAL; - - /* do we ever want to touch the hardware? */ - /* val = codec->read_mixer(codec, i); */ - val = codec->mixer_state[i]; - break; - } - return put_user(val, (int __user *)arg); - } - - if (_SIOC_DIR(cmd) == (_SIOC_WRITE|_SIOC_READ)) { - codec->modcnt++; - if (get_user(val, (int __user *)arg)) - return -EFAULT; - - switch (_IOC_NR(cmd)) { - case SOUND_MIXER_RECSRC: /* Arg contains a bit for each recording source */ - if (!codec->recmask_io) return -EINVAL; - if (!val) return 0; - if (!(val &= codec->record_sources)) return -EINVAL; - - codec->recmask_io(codec, 0, val); - - return 0; - default: /* write a specific mixer */ - i = _IOC_NR(cmd); - - if (!supported_mixer(codec, i)) - return -EINVAL; - - ac97_set_mixer(codec, i, val); - - return 0; - } - } - return -EINVAL; -} - -/** - * codec_id - Turn id1/id2 into a PnP string - * @id1: Vendor ID1 - * @id2: Vendor ID2 - * @buf: CODEC_ID_BUFSZ byte buffer - * - * Fills buf with a zero terminated PnP ident string for the id1/id2 - * pair. For convenience the return is the passed in buffer pointer. - */ - -static char *codec_id(u16 id1, u16 id2, char *buf) -{ - if(id1&0x8080) { - snprintf(buf, CODEC_ID_BUFSZ, "0x%04x:0x%04x", id1, id2); - } else { - buf[0] = (id1 >> 8); - buf[1] = (id1 & 0xFF); - buf[2] = (id2 >> 8); - snprintf(buf+3, CODEC_ID_BUFSZ - 3, "%d", id2&0xFF); - } - return buf; -} - -/** - * ac97_check_modem - Check if the Codec is a modem - * @codec: codec to check - * - * Return true if the device is an AC97 1.0 or AC97 2.0 modem - */ - -static int ac97_check_modem(struct ac97_codec *codec) -{ - /* Check for an AC97 1.0 soft modem (ID1) */ - if(codec->codec_read(codec, AC97_RESET) & 2) - return 1; - /* Check for an AC97 2.x soft modem */ - codec->codec_write(codec, AC97_EXTENDED_MODEM_ID, 0L); - if(codec->codec_read(codec, AC97_EXTENDED_MODEM_ID) & 1) - return 1; - return 0; -} - - -/** - * ac97_alloc_codec - Allocate an AC97 codec - * - * Returns a new AC97 codec structure. AC97 codecs may become - * refcounted soon so this interface is needed. Returns with - * one reference taken. - */ - -struct ac97_codec *ac97_alloc_codec(void) -{ - struct ac97_codec *codec = kzalloc(sizeof(struct ac97_codec), GFP_KERNEL); - if(!codec) - return NULL; - - spin_lock_init(&codec->lock); - INIT_LIST_HEAD(&codec->list); - return codec; -} - -EXPORT_SYMBOL(ac97_alloc_codec); - -/** - * ac97_release_codec - Release an AC97 codec - * @codec: codec to release - * - * Release an allocated AC97 codec. This will be refcounted in - * time but for the moment is trivial. Calls the unregister - * handler if the codec is now defunct. - */ - -void ac97_release_codec(struct ac97_codec *codec) -{ - /* Remove from the list first, we don't want to be - "rediscovered" */ - mutex_lock(&codec_mutex); - list_del(&codec->list); - mutex_unlock(&codec_mutex); - /* - * The driver needs to deal with internal - * locking to avoid accidents here. - */ - if(codec->driver) - codec->driver->remove(codec, codec->driver); - kfree(codec); -} - -EXPORT_SYMBOL(ac97_release_codec); - -/** - * ac97_probe_codec - Initialize and setup AC97-compatible codec - * @codec: (in/out) Kernel info for a single AC97 codec - * - * Reset the AC97 codec, then initialize the mixer and - * the rest of the @codec structure. - * - * The codec_read and codec_write fields of @codec are - * required to be setup and working when this function - * is called. All other fields are set by this function. - * - * codec_wait field of @codec can optionally be provided - * when calling this function. If codec_wait is not %NULL, - * this function will call codec_wait any time it is - * necessary to wait for the audio chip to reach the - * codec-ready state. If codec_wait is %NULL, then - * the default behavior is to call schedule_timeout. - * Currently codec_wait is used to wait for AC97 codec - * reset to complete. - * - * Some codecs will power down when a register reset is - * performed. We now check for such codecs. - * - * Returns 1 (true) on success, or 0 (false) on failure. - */ - -int ac97_probe_codec(struct ac97_codec *codec) -{ - u16 id1, id2; - u16 audio; - int i; - char cidbuf[CODEC_ID_BUFSZ]; - u16 f; - struct list_head *l; - struct ac97_driver *d; - - /* wait for codec-ready state */ - if (codec->codec_wait) - codec->codec_wait(codec); - else - udelay(10); - - /* will the codec power down if register reset ? */ - id1 = codec->codec_read(codec, AC97_VENDOR_ID1); - id2 = codec->codec_read(codec, AC97_VENDOR_ID2); - codec->name = NULL; - codec->codec_ops = &null_ops; - for (i = 0; i < ARRAY_SIZE(ac97_codec_ids); i++) { - if (ac97_codec_ids[i].id == ((id1 << 16) | id2)) { - codec->type = ac97_codec_ids[i].id; - codec->name = ac97_codec_ids[i].name; - codec->codec_ops = ac97_codec_ids[i].ops; - codec->flags = ac97_codec_ids[i].flags; - break; - } - } - - codec->model = (id1 << 16) | id2; - if ((codec->flags & AC97_DEFAULT_POWER_OFF) == 0) { - /* reset codec and wait for the ready bit before we continue */ - codec->codec_write(codec, AC97_RESET, 0L); - if (codec->codec_wait) - codec->codec_wait(codec); - else - udelay(10); - } - - /* probing AC97 codec, AC97 2.0 says that bit 15 of register 0x00 (reset) should - * be read zero. - * - * FIXME: is the following comment outdated? -jgarzik - * Probing of AC97 in this way is not reliable, it is not even SAFE !! - */ - if ((audio = codec->codec_read(codec, AC97_RESET)) & 0x8000) { - printk(KERN_ERR "ac97_codec: %s ac97 codec not present\n", - (codec->id & 0x2) ? (codec->id&1 ? "4th" : "Tertiary") - : (codec->id&1 ? "Secondary": "Primary")); - return 0; - } - - /* probe for Modem Codec */ - codec->modem = ac97_check_modem(codec); - - /* enable SPDIF */ - f = codec->codec_read(codec, AC97_EXTENDED_STATUS); - if((codec->codec_ops == &null_ops) && (f & 4)) - codec->codec_ops = &default_digital_ops; - - /* A device which thinks its a modem but isnt */ - if(codec->flags & AC97_DELUDED_MODEM) - codec->modem = 0; - - if (codec->name == NULL) - codec->name = "Unknown"; - printk(KERN_INFO "ac97_codec: AC97 %s codec, id: %s (%s)\n", - codec->modem ? "Modem" : (audio ? "Audio" : ""), - codec_id(id1, id2, cidbuf), codec->name); - - if(!ac97_init_mixer(codec)) - return 0; - - /* - * Attach last so the caller can override the mixer - * callbacks. - */ - - mutex_lock(&codec_mutex); - list_add(&codec->list, &codecs); - - list_for_each(l, &codec_drivers) { - d = list_entry(l, struct ac97_driver, list); - if ((codec->model ^ d->codec_id) & d->codec_mask) - continue; - if(d->probe(codec, d) == 0) - { - codec->driver = d; - break; - } - } - - mutex_unlock(&codec_mutex); - return 1; -} - -static int ac97_init_mixer(struct ac97_codec *codec) -{ - u16 cap; - int i; - - cap = codec->codec_read(codec, AC97_RESET); - - /* mixer masks */ - codec->supported_mixers = AC97_SUPPORTED_MASK; - codec->stereo_mixers = AC97_STEREO_MASK; - codec->record_sources = AC97_RECORD_MASK; - if (!(cap & 0x04)) - codec->supported_mixers &= ~(SOUND_MASK_BASS|SOUND_MASK_TREBLE); - if (!(cap & 0x10)) - codec->supported_mixers &= ~SOUND_MASK_ALTPCM; - - - /* detect bit resolution */ - codec->codec_write(codec, AC97_MASTER_VOL_STEREO, 0x2020); - if(codec->codec_read(codec, AC97_MASTER_VOL_STEREO) == 0x2020) - codec->bit_resolution = 6; - else - codec->bit_resolution = 5; - - /* generic OSS to AC97 wrapper */ - codec->read_mixer = ac97_read_mixer; - codec->write_mixer = ac97_write_mixer; - codec->recmask_io = ac97_recmask_io; - codec->mixer_ioctl = ac97_mixer_ioctl; - - /* initialize mixer channel volumes */ - for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) { - struct mixer_defaults *md = &mixer_defaults[i]; - if (md->mixer == -1) - break; - if (!supported_mixer(codec, md->mixer)) - continue; - ac97_set_mixer(codec, md->mixer, md->value); - } - - /* codec specific initialization for 4-6 channel output or secondary codec stuff */ - if (codec->codec_ops->init != NULL) { - codec->codec_ops->init(codec); - } - - /* - * Volume is MUTE only on this device. We have to initialise - * it but its useless beyond that. - */ - if(codec->flags & AC97_NO_PCM_VOLUME) - { - codec->supported_mixers &= ~SOUND_MASK_PCM; - printk(KERN_WARNING "AC97 codec does not have proper volume support.\n"); - } - return 1; -} - -#define AC97_SIGMATEL_ANALOG 0x6c /* Analog Special */ -#define AC97_SIGMATEL_DAC2INVERT 0x6e -#define AC97_SIGMATEL_BIAS1 0x70 -#define AC97_SIGMATEL_BIAS2 0x72 -#define AC97_SIGMATEL_MULTICHN 0x74 /* Multi-Channel programming */ -#define AC97_SIGMATEL_CIC1 0x76 -#define AC97_SIGMATEL_CIC2 0x78 - - -static int sigmatel_9708_init(struct ac97_codec * codec) -{ - u16 codec72, codec6c; - - codec72 = codec->codec_read(codec, AC97_SIGMATEL_BIAS2) & 0x8000; - codec6c = codec->codec_read(codec, AC97_SIGMATEL_ANALOG); - - if ((codec72==0) && (codec6c==0)) { - codec->codec_write(codec, AC97_SIGMATEL_CIC1, 0xabba); - codec->codec_write(codec, AC97_SIGMATEL_CIC2, 0x1000); - codec->codec_write(codec, AC97_SIGMATEL_BIAS1, 0xabba); - codec->codec_write(codec, AC97_SIGMATEL_BIAS2, 0x0007); - } else if ((codec72==0x8000) && (codec6c==0)) { - codec->codec_write(codec, AC97_SIGMATEL_CIC1, 0xabba); - codec->codec_write(codec, AC97_SIGMATEL_CIC2, 0x1001); - codec->codec_write(codec, AC97_SIGMATEL_DAC2INVERT, 0x0008); - } else if ((codec72==0x8000) && (codec6c==0x0080)) { - /* nothing */ - } - codec->codec_write(codec, AC97_SIGMATEL_MULTICHN, 0x0000); - return 0; -} - - -static int sigmatel_9721_init(struct ac97_codec * codec) -{ - /* Only set up secondary codec */ - if (codec->id == 0) - return 0; - - codec->codec_write(codec, AC97_SURROUND_MASTER, 0L); - - /* initialize SigmaTel STAC9721/23 as secondary codec, decoding AC link - sloc 3,4 = 0x01, slot 7,8 = 0x00, */ - codec->codec_write(codec, AC97_SIGMATEL_MULTICHN, 0x00); - - /* we don't have the crystal when we are on an AMR card, so use - BIT_CLK as our clock source. Write the magic word ABBA and read - back to enable register 0x78 */ - codec->codec_write(codec, AC97_SIGMATEL_CIC1, 0xabba); - codec->codec_read(codec, AC97_SIGMATEL_CIC1); - - /* sync all the clocks*/ - codec->codec_write(codec, AC97_SIGMATEL_CIC2, 0x3802); - - return 0; -} - - -static int sigmatel_9744_init(struct ac97_codec * codec) -{ - // patch for SigmaTel - codec->codec_write(codec, AC97_SIGMATEL_CIC1, 0xabba); - codec->codec_write(codec, AC97_SIGMATEL_CIC2, 0x0000); // is this correct? --jk - codec->codec_write(codec, AC97_SIGMATEL_BIAS1, 0xabba); - codec->codec_write(codec, AC97_SIGMATEL_BIAS2, 0x0002); - codec->codec_write(codec, AC97_SIGMATEL_MULTICHN, 0x0000); - return 0; -} - -static int cmedia_init(struct ac97_codec *codec) -{ - /* Initialise the CMedia 9739 */ - /* - We could set various options here - Register 0x20 bit 0x100 sets mic as center bass - Also do multi_channel_ctrl &=~0x3000 |=0x1000 - - For now we set up the GPIO and PC beep - */ - - u16 v; - - /* MIC */ - codec->codec_write(codec, 0x64, 0x3000); - v = codec->codec_read(codec, 0x64); - v &= ~0x8000; - codec->codec_write(codec, 0x64, v); - codec->codec_write(codec, 0x70, 0x0100); - codec->codec_write(codec, 0x72, 0x0020); - return 0; -} - -#define AC97_WM97XX_FMIXER_VOL 0x72 -#define AC97_WM97XX_RMIXER_VOL 0x74 -#define AC97_WM97XX_TEST 0x5a -#define AC97_WM9704_RPCM_VOL 0x70 -#define AC97_WM9711_OUT3VOL 0x16 - -static int wolfson_init03(struct ac97_codec * codec) -{ - /* this is known to work for the ViewSonic ViewPad 1000 */ - codec->codec_write(codec, AC97_WM97XX_FMIXER_VOL, 0x0808); - codec->codec_write(codec, AC97_GENERAL_PURPOSE, 0x8000); - return 0; -} - -static int wolfson_init04(struct ac97_codec * codec) -{ - codec->codec_write(codec, AC97_WM97XX_FMIXER_VOL, 0x0808); - codec->codec_write(codec, AC97_WM97XX_RMIXER_VOL, 0x0808); - - // patch for DVD noise - codec->codec_write(codec, AC97_WM97XX_TEST, 0x0200); - - // init vol as PCM vol - codec->codec_write(codec, AC97_WM9704_RPCM_VOL, - codec->codec_read(codec, AC97_PCMOUT_VOL)); - - /* set rear surround volume */ - codec->codec_write(codec, AC97_SURROUND_MASTER, 0x0000); - return 0; -} - -/* WM9705, WM9710 */ -static int wolfson_init05(struct ac97_codec * codec) -{ - /* set front mixer volume */ - codec->codec_write(codec, AC97_WM97XX_FMIXER_VOL, 0x0808); - return 0; -} - -/* WM9711, WM9712 */ -static int wolfson_init11(struct ac97_codec * codec) -{ - /* stop pop's during suspend/resume */ - codec->codec_write(codec, AC97_WM97XX_TEST, - codec->codec_read(codec, AC97_WM97XX_TEST) & 0xffbf); - - /* set out3 volume */ - codec->codec_write(codec, AC97_WM9711_OUT3VOL, 0x0808); - return 0; -} - -/* WM9713 */ -static int wolfson_init13(struct ac97_codec * codec) -{ - codec->codec_write(codec, AC97_RECORD_GAIN, 0x00a0); - codec->codec_write(codec, AC97_POWER_CONTROL, 0x0000); - codec->codec_write(codec, AC97_EXTENDED_MODEM_ID, 0xDA00); - codec->codec_write(codec, AC97_EXTEND_MODEM_STAT, 0x3810); - codec->codec_write(codec, AC97_PHONE_VOL, 0x0808); - codec->codec_write(codec, AC97_PCBEEP_VOL, 0x0808); - - return 0; -} - -static int tritech_init(struct ac97_codec * codec) -{ - codec->codec_write(codec, 0x26, 0x0300); - codec->codec_write(codec, 0x26, 0x0000); - codec->codec_write(codec, AC97_SURROUND_MASTER, 0x0000); - codec->codec_write(codec, AC97_RESERVED_3A, 0x0000); - return 0; -} - - -/* copied from drivers/sound/maestro.c */ -static int tritech_maestro_init(struct ac97_codec * codec) -{ - /* no idea what this does */ - codec->codec_write(codec, 0x2A, 0x0001); - codec->codec_write(codec, 0x2C, 0x0000); - codec->codec_write(codec, 0x2C, 0XFFFF); - return 0; -} - - - -/* - * Presario700 workaround - * for Jack Sense/SPDIF Register mis-setting causing - * no audible output - * by Santiago Nullo 04/05/2002 - */ - -#define AC97_AD1886_JACK_SENSE 0x72 - -static int ad1886_init(struct ac97_codec * codec) -{ - /* from AD1886 Specs */ - codec->codec_write(codec, AC97_AD1886_JACK_SENSE, 0x0010); - return 0; -} - - - - -/* - * This is basically standard AC97. It should work as a default for - * almost all modern codecs. Note that some cards wire EAPD *backwards* - * That side of it is up to the card driver not us to cope with. - * - */ - -static int eapd_control(struct ac97_codec * codec, int on) -{ - if(on) - codec->codec_write(codec, AC97_POWER_CONTROL, - codec->codec_read(codec, AC97_POWER_CONTROL)|0x8000); - else - codec->codec_write(codec, AC97_POWER_CONTROL, - codec->codec_read(codec, AC97_POWER_CONTROL)&~0x8000); - return 0; -} - -static int generic_digital_control(struct ac97_codec *codec, int slots, int rate, int mode) -{ - u16 reg; - - reg = codec->codec_read(codec, AC97_SPDIF_CONTROL); - - switch(rate) - { - /* Off by default */ - default: - case 0: - reg = codec->codec_read(codec, AC97_EXTENDED_STATUS); - codec->codec_write(codec, AC97_EXTENDED_STATUS, (reg & ~AC97_EA_SPDIF)); - if(rate == 0) - return 0; - return -EINVAL; - case 1: - reg = (reg & AC97_SC_SPSR_MASK) | AC97_SC_SPSR_48K; - break; - case 2: - reg = (reg & AC97_SC_SPSR_MASK) | AC97_SC_SPSR_44K; - break; - case 3: - reg = (reg & AC97_SC_SPSR_MASK) | AC97_SC_SPSR_32K; - break; - } - - reg &= ~AC97_SC_CC_MASK; - reg |= (mode & AUDIO_CCMASK) << 6; - - if(mode & AUDIO_DIGITAL) - reg |= 2; - if(mode & AUDIO_PRO) - reg |= 1; - if(mode & AUDIO_DRS) - reg |= 0x4000; - - codec->codec_write(codec, AC97_SPDIF_CONTROL, reg); - - reg = codec->codec_read(codec, AC97_EXTENDED_STATUS); - reg &= (AC97_EA_SLOT_MASK); - reg |= AC97_EA_VRA | AC97_EA_SPDIF | slots; - codec->codec_write(codec, AC97_EXTENDED_STATUS, reg); - - reg = codec->codec_read(codec, AC97_EXTENDED_STATUS); - if(!(reg & 0x0400)) - { - codec->codec_write(codec, AC97_EXTENDED_STATUS, reg & ~ AC97_EA_SPDIF); - return -EINVAL; - } - return 0; -} - -/* - * Crystal digital audio control (CS4299) - */ - -static int crystal_digital_control(struct ac97_codec *codec, int slots, int rate, int mode) -{ - u16 cv; - - if(mode & AUDIO_DIGITAL) - return -EINVAL; - - switch(rate) - { - case 0: cv = 0x0; break; /* SPEN off */ - case 48000: cv = 0x8004; break; /* 48KHz digital */ - case 44100: cv = 0x8104; break; /* 44.1KHz digital */ - case 32768: /* 32Khz */ - default: - return -EINVAL; - } - codec->codec_write(codec, 0x68, cv); - return 0; -} - -/* - * CMedia digital audio control - * Needs more work. - */ - -static int cmedia_digital_control(struct ac97_codec *codec, int slots, int rate, int mode) -{ - u16 cv; - - if(mode & AUDIO_DIGITAL) - return -EINVAL; - - switch(rate) - { - case 0: cv = 0x0001; break; /* SPEN off */ - case 48000: cv = 0x0009; break; /* 48KHz digital */ - default: - return -EINVAL; - } - codec->codec_write(codec, 0x2A, 0x05c4); - codec->codec_write(codec, 0x6C, cv); - - /* Switch on mix to surround */ - cv = codec->codec_read(codec, 0x64); - cv &= ~0x0200; - if(mode) - cv |= 0x0200; - codec->codec_write(codec, 0x64, cv); - return 0; -} - - -/* copied from drivers/sound/maestro.c */ -#if 0 /* there has been 1 person on the planet with a pt101 that we - know of. If they care, they can put this back in :) */ -static int pt101_init(struct ac97_codec * codec) -{ - printk(KERN_INFO "ac97_codec: PT101 Codec detected, initializing but _not_ installing mixer device.\n"); - /* who knows.. */ - codec->codec_write(codec, 0x2A, 0x0001); - codec->codec_write(codec, 0x2C, 0x0000); - codec->codec_write(codec, 0x2C, 0xFFFF); - codec->codec_write(codec, 0x10, 0x9F1F); - codec->codec_write(codec, 0x12, 0x0808); - codec->codec_write(codec, 0x14, 0x9F1F); - codec->codec_write(codec, 0x16, 0x9F1F); - codec->codec_write(codec, 0x18, 0x0404); - codec->codec_write(codec, 0x1A, 0x0000); - codec->codec_write(codec, 0x1C, 0x0000); - codec->codec_write(codec, 0x02, 0x0404); - codec->codec_write(codec, 0x04, 0x0808); - codec->codec_write(codec, 0x0C, 0x801F); - codec->codec_write(codec, 0x0E, 0x801F); - return 0; -} -#endif - - -EXPORT_SYMBOL(ac97_probe_codec); - -MODULE_LICENSE("GPL"); - diff --git a/sound/oss/ad1848.c b/sound/oss/ad1848.c index 4d2a6ae978f..ec1ee07df59 100644 --- a/sound/oss/ad1848.c +++ b/sound/oss/ad1848.c @@ -50,8 +50,6 @@ #include <linux/pnp.h> #include <linux/spinlock.h> -#define DEB(x) -#define DEB1(x) #include "sound_config.h" #include "ad1848.h" @@ -119,9 +117,9 @@ ad1848_port_info; static struct address_info cfg; static int nr_ad1848_devs; -static int deskpro_xl; -static int deskpro_m; -static int soundpro; +static bool deskpro_xl; +static bool deskpro_m; +static bool soundpro; static volatile signed char irq2dev[17] = { -1, -1, -1, -1, -1, -1, -1, -1, @@ -177,7 +175,7 @@ static struct { #ifdef CONFIG_PNP static int isapnp = 1; static int isapnpjump; -static int reverse; +static bool reverse; static int audio_activated; #else @@ -458,7 +456,7 @@ static int ad1848_set_recmask(ad1848_info * devc, int mask) return mask; } -static void change_bits(ad1848_info * devc, unsigned char *regval, +static void oss_change_bits(ad1848_info *devc, unsigned char *regval, unsigned char *muteval, int dev, int chn, int newval) { unsigned char mask; @@ -516,10 +514,10 @@ static void ad1848_mixer_set_channel(ad1848_info *devc, int dev, int value, int if (muteregoffs != regoffs) { muteval = ad_read(devc, muteregoffs); - change_bits(devc, &val, &muteval, dev, channel, value); + oss_change_bits(devc, &val, &muteval, dev, channel, value); } else - change_bits(devc, &val, &val, dev, channel, value); + oss_change_bits(devc, &val, &val, dev, channel, value); spin_lock_irqsave(&devc->lock,flags); ad_write(devc, regoffs, val); @@ -1016,8 +1014,6 @@ static void ad1848_close(int dev) ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc; ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc; - DEB(printk("ad1848_close(void)\n")); - devc->intr_active = 0; ad1848_halt(dev); @@ -2864,7 +2860,7 @@ static struct { {NULL} }; -static struct isapnp_device_id id_table[] __devinitdata = { +static struct isapnp_device_id id_table[] = { { ISAPNP_VENDOR('C','M','I'), ISAPNP_DEVICE(0x0001), ISAPNP_VENDOR('@','@','@'), ISAPNP_FUNCTION(0x0001), 0 }, { ISAPNP_ANY_ID, ISAPNP_ANY_ID, diff --git a/sound/oss/au1550_ac97.c b/sound/oss/au1550_ac97.c deleted file mode 100644 index a8f626d99c5..00000000000 --- a/sound/oss/au1550_ac97.c +++ /dev/null @@ -1,2147 +0,0 @@ -/* - * au1550_ac97.c -- Sound driver for Alchemy Au1550 MIPS Internet Edge - * Processor. - * - * Copyright 2004 Embedded Edge, LLC - * dan@embeddededge.com - * - * Mostly copied from the au1000.c driver and some from the - * PowerMac dbdma driver. - * We assume the processor can do memory coherent DMA. - * - * Ported to 2.6 by Matt Porter <mporter@kernel.crashing.org> - * - * 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN - * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON - * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * 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. - * - */ - -#undef DEBUG - -#include <linux/module.h> -#include <linux/string.h> -#include <linux/ioport.h> -#include <linux/sched.h> -#include <linux/delay.h> -#include <linux/sound.h> -#include <linux/slab.h> -#include <linux/soundcard.h> -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/kernel.h> -#include <linux/poll.h> -#include <linux/bitops.h> -#include <linux/spinlock.h> -#include <linux/ac97_codec.h> -#include <linux/mutex.h> - -#include <asm/io.h> -#include <asm/uaccess.h> -#include <asm/hardirq.h> -#include <asm/mach-au1x00/au1xxx_psc.h> -#include <asm/mach-au1x00/au1xxx_dbdma.h> -#include <asm/mach-au1x00/au1xxx.h> - -#undef OSS_DOCUMENTED_MIXER_SEMANTICS - -/* misc stuff */ -#define POLL_COUNT 0x50000 -#define AC97_EXT_DACS (AC97_EXTID_SDAC | AC97_EXTID_CDAC | AC97_EXTID_LDAC) - -/* The number of DBDMA ring descriptors to allocate. No sense making - * this too large....if you can't keep up with a few you aren't likely - * to be able to with lots of them, either. - */ -#define NUM_DBDMA_DESCRIPTORS 4 - -#define err(format, arg...) printk(KERN_ERR format "\n" , ## arg) - -/* Boot options - * 0 = no VRA, 1 = use VRA if codec supports it - */ -static DEFINE_MUTEX(au1550_ac97_mutex); -static int vra = 1; -module_param(vra, bool, 0); -MODULE_PARM_DESC(vra, "if 1 use VRA if codec supports it"); - -static struct au1550_state { - /* soundcore stuff */ - int dev_audio; - - struct ac97_codec *codec; - unsigned codec_base_caps; /* AC'97 reg 00h, "Reset Register" */ - unsigned codec_ext_caps; /* AC'97 reg 28h, "Extended Audio ID" */ - int no_vra; /* do not use VRA */ - - spinlock_t lock; - struct mutex open_mutex; - struct mutex sem; - fmode_t open_mode; - wait_queue_head_t open_wait; - - struct dmabuf { - u32 dmanr; - unsigned sample_rate; - unsigned src_factor; - unsigned sample_size; - int num_channels; - int dma_bytes_per_sample; - int user_bytes_per_sample; - int cnt_factor; - - void *rawbuf; - unsigned buforder; - unsigned numfrag; - unsigned fragshift; - void *nextIn; - void *nextOut; - int count; - unsigned total_bytes; - unsigned error; - wait_queue_head_t wait; - - /* redundant, but makes calculations easier */ - unsigned fragsize; - unsigned dma_fragsize; - unsigned dmasize; - unsigned dma_qcount; - - /* OSS stuff */ - unsigned mapped:1; - unsigned ready:1; - unsigned stopped:1; - unsigned ossfragshift; - int ossmaxfrags; - unsigned subdivision; - } dma_dac, dma_adc; -} au1550_state; - -static unsigned -ld2(unsigned int x) -{ - unsigned r = 0; - - if (x >= 0x10000) { - x >>= 16; - r += 16; - } - if (x >= 0x100) { - x >>= 8; - r += 8; - } - if (x >= 0x10) { - x >>= 4; - r += 4; - } - if (x >= 4) { - x >>= 2; - r += 2; - } - if (x >= 2) - r++; - return r; -} - -static void -au1550_delay(int msec) -{ - if (in_interrupt()) - return; - - schedule_timeout_uninterruptible(msecs_to_jiffies(msec)); -} - -static u16 -rdcodec(struct ac97_codec *codec, u8 addr) -{ - struct au1550_state *s = codec->private_data; - unsigned long flags; - u32 cmd, val; - u16 data; - int i; - - spin_lock_irqsave(&s->lock, flags); - - for (i = 0; i < POLL_COUNT; i++) { - val = au_readl(PSC_AC97STAT); - au_sync(); - if (!(val & PSC_AC97STAT_CP)) - break; - } - if (i == POLL_COUNT) - err("rdcodec: codec cmd pending expired!"); - - cmd = (u32)PSC_AC97CDC_INDX(addr); - cmd |= PSC_AC97CDC_RD; /* read command */ - au_writel(cmd, PSC_AC97CDC); - au_sync(); - - /* now wait for the data - */ - for (i = 0; i < POLL_COUNT; i++) { - val = au_readl(PSC_AC97STAT); - au_sync(); - if (!(val & PSC_AC97STAT_CP)) - break; - } - if (i == POLL_COUNT) { - err("rdcodec: read poll expired!"); - data = 0; - goto out; - } - - /* wait for command done? - */ - for (i = 0; i < POLL_COUNT; i++) { - val = au_readl(PSC_AC97EVNT); - au_sync(); - if (val & PSC_AC97EVNT_CD) - break; - } - if (i == POLL_COUNT) { - err("rdcodec: read cmdwait expired!"); - data = 0; - goto out; - } - - data = au_readl(PSC_AC97CDC) & 0xffff; - au_sync(); - - /* Clear command done event. - */ - au_writel(PSC_AC97EVNT_CD, PSC_AC97EVNT); - au_sync(); - - out: - spin_unlock_irqrestore(&s->lock, flags); - - return data; -} - - -static void -wrcodec(struct ac97_codec *codec, u8 addr, u16 data) -{ - struct au1550_state *s = codec->private_data; - unsigned long flags; - u32 cmd, val; - int i; - - spin_lock_irqsave(&s->lock, flags); - - for (i = 0; i < POLL_COUNT; i++) { - val = au_readl(PSC_AC97STAT); - au_sync(); - if (!(val & PSC_AC97STAT_CP)) - break; - } - if (i == POLL_COUNT) - err("wrcodec: codec cmd pending expired!"); - - cmd = (u32)PSC_AC97CDC_INDX(addr); - cmd |= (u32)data; - au_writel(cmd, PSC_AC97CDC); - au_sync(); - - for (i = 0; i < POLL_COUNT; i++) { - val = au_readl(PSC_AC97STAT); - au_sync(); - if (!(val & PSC_AC97STAT_CP)) - break; - } - if (i == POLL_COUNT) - err("wrcodec: codec cmd pending expired!"); - - for (i = 0; i < POLL_COUNT; i++) { - val = au_readl(PSC_AC97EVNT); - au_sync(); - if (val & PSC_AC97EVNT_CD) - break; - } - if (i == POLL_COUNT) - err("wrcodec: read cmdwait expired!"); - - /* Clear command done event. - */ - au_writel(PSC_AC97EVNT_CD, PSC_AC97EVNT); - au_sync(); - - spin_unlock_irqrestore(&s->lock, flags); -} - -static void -waitcodec(struct ac97_codec *codec) -{ - u16 temp; - u32 val; - int i; - - /* codec_wait is used to wait for a ready state after - * an AC97C_RESET. - */ - au1550_delay(10); - - /* first poll the CODEC_READY tag bit - */ - for (i = 0; i < POLL_COUNT; i++) { - val = au_readl(PSC_AC97STAT); - au_sync(); - if (val & PSC_AC97STAT_CR) - break; - } - if (i == POLL_COUNT) { - err("waitcodec: CODEC_READY poll expired!"); - return; - } - - /* get AC'97 powerdown control/status register - */ - temp = rdcodec(codec, AC97_POWER_CONTROL); - - /* If anything is powered down, power'em up - */ - if (temp & 0x7f00) { - /* Power on - */ - wrcodec(codec, AC97_POWER_CONTROL, 0); - au1550_delay(100); - - /* Reread - */ - temp = rdcodec(codec, AC97_POWER_CONTROL); - } - - /* Check if Codec REF,ANL,DAC,ADC ready - */ - if ((temp & 0x7f0f) != 0x000f) - err("codec reg 26 status (0x%x) not ready!!", temp); -} - -/* stop the ADC before calling */ -static void -set_adc_rate(struct au1550_state *s, unsigned rate) -{ - struct dmabuf *adc = &s->dma_adc; - struct dmabuf *dac = &s->dma_dac; - unsigned adc_rate, dac_rate; - u16 ac97_extstat; - - if (s->no_vra) { - /* calc SRC factor - */ - adc->src_factor = ((96000 / rate) + 1) >> 1; - adc->sample_rate = 48000 / adc->src_factor; - return; - } - - adc->src_factor = 1; - - ac97_extstat = rdcodec(s->codec, AC97_EXTENDED_STATUS); - - rate = rate > 48000 ? 48000 : rate; - - /* enable VRA - */ - wrcodec(s->codec, AC97_EXTENDED_STATUS, - ac97_extstat | AC97_EXTSTAT_VRA); - - /* now write the sample rate - */ - wrcodec(s->codec, AC97_PCM_LR_ADC_RATE, (u16) rate); - - /* read it back for actual supported rate - */ - adc_rate = rdcodec(s->codec, AC97_PCM_LR_ADC_RATE); - - pr_debug("set_adc_rate: set to %d Hz\n", adc_rate); - - /* some codec's don't allow unequal DAC and ADC rates, in which case - * writing one rate reg actually changes both. - */ - dac_rate = rdcodec(s->codec, AC97_PCM_FRONT_DAC_RATE); - if (dac->num_channels > 2) - wrcodec(s->codec, AC97_PCM_SURR_DAC_RATE, dac_rate); - if (dac->num_channels > 4) - wrcodec(s->codec, AC97_PCM_LFE_DAC_RATE, dac_rate); - - adc->sample_rate = adc_rate; - dac->sample_rate = dac_rate; -} - -/* stop the DAC before calling */ -static void -set_dac_rate(struct au1550_state *s, unsigned rate) -{ - struct dmabuf *dac = &s->dma_dac; - struct dmabuf *adc = &s->dma_adc; - unsigned adc_rate, dac_rate; - u16 ac97_extstat; - - if (s->no_vra) { - /* calc SRC factor - */ - dac->src_factor = ((96000 / rate) + 1) >> 1; - dac->sample_rate = 48000 / dac->src_factor; - return; - } - - dac->src_factor = 1; - - ac97_extstat = rdcodec(s->codec, AC97_EXTENDED_STATUS); - - rate = rate > 48000 ? 48000 : rate; - - /* enable VRA - */ - wrcodec(s->codec, AC97_EXTENDED_STATUS, - ac97_extstat | AC97_EXTSTAT_VRA); - - /* now write the sample rate - */ - wrcodec(s->codec, AC97_PCM_FRONT_DAC_RATE, (u16) rate); - - /* I don't support different sample rates for multichannel, - * so make these channels the same. - */ - if (dac->num_channels > 2) - wrcodec(s->codec, AC97_PCM_SURR_DAC_RATE, (u16) rate); - if (dac->num_channels > 4) - wrcodec(s->codec, AC97_PCM_LFE_DAC_RATE, (u16) rate); - /* read it back for actual supported rate - */ - dac_rate = rdcodec(s->codec, AC97_PCM_FRONT_DAC_RATE); - - pr_debug("set_dac_rate: set to %d Hz\n", dac_rate); - - /* some codec's don't allow unequal DAC and ADC rates, in which case - * writing one rate reg actually changes both. - */ - adc_rate = rdcodec(s->codec, AC97_PCM_LR_ADC_RATE); - - dac->sample_rate = dac_rate; - adc->sample_rate = adc_rate; -} - -static void -stop_dac(struct au1550_state *s) -{ - struct dmabuf *db = &s->dma_dac; - u32 stat; - unsigned long flags; - - if (db->stopped) - return; - - spin_lock_irqsave(&s->lock, flags); - - au_writel(PSC_AC97PCR_TP, PSC_AC97PCR); - au_sync(); - - /* Wait for Transmit Busy to show disabled. - */ - do { - stat = au_readl(PSC_AC97STAT); - au_sync(); - } while ((stat & PSC_AC97STAT_TB) != 0); - - au1xxx_dbdma_reset(db->dmanr); - - db->stopped = 1; - - spin_unlock_irqrestore(&s->lock, flags); -} - -static void -stop_adc(struct au1550_state *s) -{ - struct dmabuf *db = &s->dma_adc; - unsigned long flags; - u32 stat; - - if (db->stopped) - return; - - spin_lock_irqsave(&s->lock, flags); - - au_writel(PSC_AC97PCR_RP, PSC_AC97PCR); - au_sync(); - - /* Wait for Receive Busy to show disabled. - */ - do { - stat = au_readl(PSC_AC97STAT); - au_sync(); - } while ((stat & PSC_AC97STAT_RB) != 0); - - au1xxx_dbdma_reset(db->dmanr); - - db->stopped = 1; - - spin_unlock_irqrestore(&s->lock, flags); -} - - -static void -set_xmit_slots(int num_channels) -{ - u32 ac97_config, stat; - - ac97_config = au_readl(PSC_AC97CFG); - au_sync(); - ac97_config &= ~(PSC_AC97CFG_TXSLOT_MASK | PSC_AC97CFG_DE_ENABLE); - au_writel(ac97_config, PSC_AC97CFG); - au_sync(); - - switch (num_channels) { - case 6: /* stereo with surround and center/LFE, - * slots 3,4,6,7,8,9 - */ - ac97_config |= PSC_AC97CFG_TXSLOT_ENA(6); - ac97_config |= PSC_AC97CFG_TXSLOT_ENA(9); - - case 4: /* stereo with surround, slots 3,4,7,8 */ - ac97_config |= PSC_AC97CFG_TXSLOT_ENA(7); - ac97_config |= PSC_AC97CFG_TXSLOT_ENA(8); - - case 2: /* stereo, slots 3,4 */ - case 1: /* mono */ - ac97_config |= PSC_AC97CFG_TXSLOT_ENA(3); - ac97_config |= PSC_AC97CFG_TXSLOT_ENA(4); - } - - au_writel(ac97_config, PSC_AC97CFG); - au_sync(); - - ac97_config |= PSC_AC97CFG_DE_ENABLE; - au_writel(ac97_config, PSC_AC97CFG); - au_sync(); - - /* Wait for Device ready. - */ - do { - stat = au_readl(PSC_AC97STAT); - au_sync(); - } while ((stat & PSC_AC97STAT_DR) == 0); -} - -static void -set_recv_slots(int num_channels) -{ - u32 ac97_config, stat; - - ac97_config = au_readl(PSC_AC97CFG); - au_sync(); - ac97_config &= ~(PSC_AC97CFG_RXSLOT_MASK | PSC_AC97CFG_DE_ENABLE); - au_writel(ac97_config, PSC_AC97CFG); - au_sync(); - - /* Always enable slots 3 and 4 (stereo). Slot 6 is - * optional Mic ADC, which we don't support yet. - */ - ac97_config |= PSC_AC97CFG_RXSLOT_ENA(3); - ac97_config |= PSC_AC97CFG_RXSLOT_ENA(4); - - au_writel(ac97_config, PSC_AC97CFG); - au_sync(); - - ac97_config |= PSC_AC97CFG_DE_ENABLE; - au_writel(ac97_config, PSC_AC97CFG); - au_sync(); - - /* Wait for Device ready. - */ - do { - stat = au_readl(PSC_AC97STAT); - au_sync(); - } while ((stat & PSC_AC97STAT_DR) == 0); -} - -/* Hold spinlock for both start_dac() and start_adc() calls */ -static void -start_dac(struct au1550_state *s) -{ - struct dmabuf *db = &s->dma_dac; - - if (!db->stopped) - return; - - set_xmit_slots(db->num_channels); - au_writel(PSC_AC97PCR_TC, PSC_AC97PCR); - au_sync(); - au_writel(PSC_AC97PCR_TS, PSC_AC97PCR); - au_sync(); - - au1xxx_dbdma_start(db->dmanr); - - db->stopped = 0; -} - -static void -start_adc(struct au1550_state *s) -{ - struct dmabuf *db = &s->dma_adc; - int i; - - if (!db->stopped) - return; - - /* Put two buffers on the ring to get things started. - */ - for (i=0; i<2; i++) { - au1xxx_dbdma_put_dest(db->dmanr, virt_to_phys(db->nextIn), - db->dma_fragsize, DDMA_FLAGS_IE); - - db->nextIn += db->dma_fragsize; - if (db->nextIn >= db->rawbuf + db->dmasize) - db->nextIn -= db->dmasize; - } - - set_recv_slots(db->num_channels); - au1xxx_dbdma_start(db->dmanr); - au_writel(PSC_AC97PCR_RC, PSC_AC97PCR); - au_sync(); - au_writel(PSC_AC97PCR_RS, PSC_AC97PCR); - au_sync(); - - db->stopped = 0; -} - -static int -prog_dmabuf(struct au1550_state *s, struct dmabuf *db) -{ - unsigned user_bytes_per_sec; - unsigned bufs; - unsigned rate = db->sample_rate; - - if (!db->rawbuf) { - db->ready = db->mapped = 0; - db->buforder = 5; /* 32 * PAGE_SIZE */ - db->rawbuf = kmalloc((PAGE_SIZE << db->buforder), GFP_KERNEL); - if (!db->rawbuf) - return -ENOMEM; - } - - db->cnt_factor = 1; - if (db->sample_size == 8) - db->cnt_factor *= 2; - if (db->num_channels == 1) - db->cnt_factor *= 2; - db->cnt_factor *= db->src_factor; - - db->count = 0; - db->dma_qcount = 0; - db->nextIn = db->nextOut = db->rawbuf; - - db->user_bytes_per_sample = (db->sample_size>>3) * db->num_channels; - db->dma_bytes_per_sample = 2 * ((db->num_channels == 1) ? - 2 : db->num_channels); - - user_bytes_per_sec = rate * db->user_bytes_per_sample; - bufs = PAGE_SIZE << db->buforder; - if (db->ossfragshift) { - if ((1000 << db->ossfragshift) < user_bytes_per_sec) - db->fragshift = ld2(user_bytes_per_sec/1000); - else - db->fragshift = db->ossfragshift; - } else { - db->fragshift = ld2(user_bytes_per_sec / 100 / - (db->subdivision ? db->subdivision : 1)); - if (db->fragshift < 3) - db->fragshift = 3; - } - - db->fragsize = 1 << db->fragshift; - db->dma_fragsize = db->fragsize * db->cnt_factor; - db->numfrag = bufs / db->dma_fragsize; - - while (db->numfrag < 4 && db->fragshift > 3) { - db->fragshift--; - db->fragsize = 1 << db->fragshift; - db->dma_fragsize = db->fragsize * db->cnt_factor; - db->numfrag = bufs / db->dma_fragsize; - } - - if (db->ossmaxfrags >= 4 && db->ossmaxfrags < db->numfrag) - db->numfrag = db->ossmaxfrags; - - db->dmasize = db->dma_fragsize * db->numfrag; - memset(db->rawbuf, 0, bufs); - - pr_debug("prog_dmabuf: rate=%d, samplesize=%d, channels=%d\n", - rate, db->sample_size, db->num_channels); - pr_debug("prog_dmabuf: fragsize=%d, cnt_factor=%d, dma_fragsize=%d\n", - db->fragsize, db->cnt_factor, db->dma_fragsize); - pr_debug("prog_dmabuf: numfrag=%d, dmasize=%d\n", db->numfrag, db->dmasize); - - db->ready = 1; - return 0; -} - -static int -prog_dmabuf_adc(struct au1550_state *s) -{ - stop_adc(s); - return prog_dmabuf(s, &s->dma_adc); - -} - -static int -prog_dmabuf_dac(struct au1550_state *s) -{ - stop_dac(s); - return prog_dmabuf(s, &s->dma_dac); -} - - -static void dac_dma_interrupt(int irq, void *dev_id) -{ - struct au1550_state *s = (struct au1550_state *) dev_id; - struct dmabuf *db = &s->dma_dac; - u32 ac97c_stat; - - spin_lock(&s->lock); - - ac97c_stat = au_readl(PSC_AC97STAT); - if (ac97c_stat & (AC97C_XU | AC97C_XO | AC97C_TE)) - pr_debug("AC97C status = 0x%08x\n", ac97c_stat); - db->dma_qcount--; - - if (db->count >= db->fragsize) { - if (au1xxx_dbdma_put_source(db->dmanr, - virt_to_phys(db->nextOut), db->fragsize, - DDMA_FLAGS_IE) == 0) { - err("qcount < 2 and no ring room!"); - } - db->nextOut += db->fragsize; - if (db->nextOut >= db->rawbuf + db->dmasize) - db->nextOut -= db->dmasize; - db->count -= db->fragsize; - db->total_bytes += db->dma_fragsize; - db->dma_qcount++; - } - - /* wake up anybody listening */ - if (waitqueue_active(&db->wait)) - wake_up(&db->wait); - - spin_unlock(&s->lock); -} - - -static void adc_dma_interrupt(int irq, void *dev_id) -{ - struct au1550_state *s = (struct au1550_state *)dev_id; - struct dmabuf *dp = &s->dma_adc; - u32 obytes; - char *obuf; - - spin_lock(&s->lock); - - /* Pull the buffer from the dma queue. - */ - au1xxx_dbdma_get_dest(dp->dmanr, (void *)(&obuf), &obytes); - - if ((dp->count + obytes) > dp->dmasize) { - /* Overrun. Stop ADC and log the error - */ - spin_unlock(&s->lock); - stop_adc(s); - dp->error++; - err("adc overrun"); - return; - } - - /* Put a new empty buffer on the destination DMA. - */ - au1xxx_dbdma_put_dest(dp->dmanr, virt_to_phys(dp->nextIn), - dp->dma_fragsize, DDMA_FLAGS_IE); - - dp->nextIn += dp->dma_fragsize; - if (dp->nextIn >= dp->rawbuf + dp->dmasize) - dp->nextIn -= dp->dmasize; - - dp->count += obytes; - dp->total_bytes += obytes; - - /* wake up anybody listening - */ - if (waitqueue_active(&dp->wait)) - wake_up(&dp->wait); - - spin_unlock(&s->lock); -} - -static loff_t -au1550_llseek(struct file *file, loff_t offset, int origin) -{ - return -ESPIPE; -} - - -static int -au1550_open_mixdev(struct inode *inode, struct file *file) -{ - mutex_lock(&au1550_ac97_mutex); - file->private_data = &au1550_state; - mutex_unlock(&au1550_ac97_mutex); - return 0; -} - -static int -au1550_release_mixdev(struct inode *inode, struct file *file) -{ - return 0; -} - -static int -mixdev_ioctl(struct ac97_codec *codec, unsigned int cmd, - unsigned long arg) -{ - return codec->mixer_ioctl(codec, cmd, arg); -} - -static long -au1550_ioctl_mixdev(struct file *file, unsigned int cmd, unsigned long arg) -{ - struct au1550_state *s = file->private_data; - struct ac97_codec *codec = s->codec; - int ret; - - mutex_lock(&au1550_ac97_mutex); - ret = mixdev_ioctl(codec, cmd, arg); - mutex_unlock(&au1550_ac97_mutex); - - return ret; -} - -static /*const */ struct file_operations au1550_mixer_fops = { - .owner = THIS_MODULE, - .llseek = au1550_llseek, - .unlocked_ioctl = au1550_ioctl_mixdev, - .open = au1550_open_mixdev, - .release = au1550_release_mixdev, -}; - -static int -drain_dac(struct au1550_state *s, int nonblock) -{ - unsigned long flags; - int count, tmo; - - if (s->dma_dac.mapped || !s->dma_dac.ready || s->dma_dac.stopped) - return 0; - - for (;;) { - spin_lock_irqsave(&s->lock, flags); - count = s->dma_dac.count; - spin_unlock_irqrestore(&s->lock, flags); - if (count <= s->dma_dac.fragsize) - break; - if (signal_pending(current)) - break; - if (nonblock) - return -EBUSY; - tmo = 1000 * count / (s->no_vra ? - 48000 : s->dma_dac.sample_rate); - tmo /= s->dma_dac.dma_bytes_per_sample; - au1550_delay(tmo); - } - if (signal_pending(current)) - return -ERESTARTSYS; - return 0; -} - -static inline u8 S16_TO_U8(s16 ch) -{ - return (u8) (ch >> 8) + 0x80; -} -static inline s16 U8_TO_S16(u8 ch) -{ - return (s16) (ch - 0x80) << 8; -} - -/* - * Translates user samples to dma buffer suitable for AC'97 DAC data: - * If mono, copy left channel to right channel in dma buffer. - * If 8 bit samples, cvt to 16-bit before writing to dma buffer. - * If interpolating (no VRA), duplicate every audio frame src_factor times. - */ -static int -translate_from_user(struct dmabuf *db, char* dmabuf, char* userbuf, - int dmacount) -{ - int sample, i; - int interp_bytes_per_sample; - int num_samples; - int mono = (db->num_channels == 1); - char usersample[12]; - s16 ch, dmasample[6]; - - if (db->sample_size == 16 && !mono && db->src_factor == 1) { - /* no translation necessary, just copy - */ - if (copy_from_user(dmabuf, userbuf, dmacount)) - return -EFAULT; - return dmacount; - } - - interp_bytes_per_sample = db->dma_bytes_per_sample * db->src_factor; - num_samples = dmacount / interp_bytes_per_sample; - - for (sample = 0; sample < num_samples; sample++) { - if (copy_from_user(usersample, userbuf, - db->user_bytes_per_sample)) { - return -EFAULT; - } - - for (i = 0; i < db->num_channels; i++) { - if (db->sample_size == 8) - ch = U8_TO_S16(usersample[i]); - else - ch = *((s16 *) (&usersample[i * 2])); - dmasample[i] = ch; - if (mono) - dmasample[i + 1] = ch; /* right channel */ - } - - /* duplicate every audio frame src_factor times - */ - for (i = 0; i < db->src_factor; i++) - memcpy(dmabuf, dmasample, db->dma_bytes_per_sample); - - userbuf += db->user_bytes_per_sample; - dmabuf += interp_bytes_per_sample; - } - - return num_samples * interp_bytes_per_sample; -} - -/* - * Translates AC'97 ADC samples to user buffer: - * If mono, send only left channel to user buffer. - * If 8 bit samples, cvt from 16 to 8 bit before writing to user buffer. - * If decimating (no VRA), skip over src_factor audio frames. - */ -static int -translate_to_user(struct dmabuf *db, char* userbuf, char* dmabuf, - int dmacount) -{ - int sample, i; - int interp_bytes_per_sample; - int num_samples; - int mono = (db->num_channels == 1); - char usersample[12]; - - if (db->sample_size == 16 && !mono && db->src_factor == 1) { - /* no translation necessary, just copy - */ - if (copy_to_user(userbuf, dmabuf, dmacount)) - return -EFAULT; - return dmacount; - } - - interp_bytes_per_sample = db->dma_bytes_per_sample * db->src_factor; - num_samples = dmacount / interp_bytes_per_sample; - - for (sample = 0; sample < num_samples; sample++) { - for (i = 0; i < db->num_channels; i++) { - if (db->sample_size == 8) - usersample[i] = - S16_TO_U8(*((s16 *) (&dmabuf[i * 2]))); - else - *((s16 *) (&usersample[i * 2])) = - *((s16 *) (&dmabuf[i * 2])); - } - - if (copy_to_user(userbuf, usersample, - db->user_bytes_per_sample)) { - return -EFAULT; - } - - userbuf += db->user_bytes_per_sample; - dmabuf += interp_bytes_per_sample; - } - - return num_samples * interp_bytes_per_sample; -} - -/* - * Copy audio data to/from user buffer from/to dma buffer, taking care - * that we wrap when reading/writing the dma buffer. Returns actual byte - * count written to or read from the dma buffer. - */ -static int -copy_dmabuf_user(struct dmabuf *db, char* userbuf, int count, int to_user) -{ - char *bufptr = to_user ? db->nextOut : db->nextIn; - char *bufend = db->rawbuf + db->dmasize; - int cnt, ret; - - if (bufptr + count > bufend) { - int partial = (int) (bufend - bufptr); - if (to_user) { - if ((cnt = translate_to_user(db, userbuf, - bufptr, partial)) < 0) - return cnt; - ret = cnt; - if ((cnt = translate_to_user(db, userbuf + partial, - db->rawbuf, - count - partial)) < 0) - return cnt; - ret += cnt; - } else { - if ((cnt = translate_from_user(db, bufptr, userbuf, - partial)) < 0) - return cnt; - ret = cnt; - if ((cnt = translate_from_user(db, db->rawbuf, - userbuf + partial, - count - partial)) < 0) - return cnt; - ret += cnt; - } - } else { - if (to_user) - ret = translate_to_user(db, userbuf, bufptr, count); - else - ret = translate_from_user(db, bufptr, userbuf, count); - } - - return ret; -} - - -static ssize_t -au1550_read(struct file *file, char *buffer, size_t count, loff_t *ppos) -{ - struct au1550_state *s = file->private_data; - struct dmabuf *db = &s->dma_adc; - DECLARE_WAITQUEUE(wait, current); - ssize_t ret; - unsigned long flags; - int cnt, usercnt, avail; - - if (db->mapped) - return -ENXIO; - if (!access_ok(VERIFY_WRITE, buffer, count)) - return -EFAULT; - ret = 0; - - count *= db->cnt_factor; - - mutex_lock(&s->sem); - add_wait_queue(&db->wait, &wait); - - while (count > 0) { - /* wait for samples in ADC dma buffer - */ - do { - spin_lock_irqsave(&s->lock, flags); - if (db->stopped) - start_adc(s); - avail = db->count; - if (avail <= 0) - __set_current_state(TASK_INTERRUPTIBLE); - spin_unlock_irqrestore(&s->lock, flags); - if (avail <= 0) { - if (file->f_flags & O_NONBLOCK) { - if (!ret) - ret = -EAGAIN; - goto out; - } - mutex_unlock(&s->sem); - schedule(); - if (signal_pending(current)) { - if (!ret) - ret = -ERESTARTSYS; - goto out2; - } - mutex_lock(&s->sem); - } - } while (avail <= 0); - - /* copy from nextOut to user - */ - if ((cnt = copy_dmabuf_user(db, buffer, - count > avail ? - avail : count, 1)) < 0) { - if (!ret) - ret = -EFAULT; - goto out; - } - - spin_lock_irqsave(&s->lock, flags); - db->count -= cnt; - db->nextOut += cnt; - if (db->nextOut >= db->rawbuf + db->dmasize) - db->nextOut -= db->dmasize; - spin_unlock_irqrestore(&s->lock, flags); - - count -= cnt; - usercnt = cnt / db->cnt_factor; - buffer += usercnt; - ret += usercnt; - } /* while (count > 0) */ - -out: - mutex_unlock(&s->sem); -out2: - remove_wait_queue(&db->wait, &wait); - set_current_state(TASK_RUNNING); - return ret; -} - -static ssize_t -au1550_write(struct file *file, const char *buffer, size_t count, loff_t * ppos) -{ - struct au1550_state *s = file->private_data; - struct dmabuf *db = &s->dma_dac; - DECLARE_WAITQUEUE(wait, current); - ssize_t ret = 0; - unsigned long flags; - int cnt, usercnt, avail; - - pr_debug("write: count=%d\n", count); - - if (db->mapped) - return -ENXIO; - if (!access_ok(VERIFY_READ, buffer, count)) - return -EFAULT; - - count *= db->cnt_factor; - - mutex_lock(&s->sem); - add_wait_queue(&db->wait, &wait); - - while (count > 0) { - /* wait for space in playback buffer - */ - do { - spin_lock_irqsave(&s->lock, flags); - avail = (int) db->dmasize - db->count; - if (avail <= 0) - __set_current_state(TASK_INTERRUPTIBLE); - spin_unlock_irqrestore(&s->lock, flags); - if (avail <= 0) { - if (file->f_flags & O_NONBLOCK) { - if (!ret) - ret = -EAGAIN; - goto out; - } - mutex_unlock(&s->sem); - schedule(); - if (signal_pending(current)) { - if (!ret) - ret = -ERESTARTSYS; - goto out2; - } - mutex_lock(&s->sem); - } - } while (avail <= 0); - - /* copy from user to nextIn - */ - if ((cnt = copy_dmabuf_user(db, (char *) buffer, - count > avail ? - avail : count, 0)) < 0) { - if (!ret) - ret = -EFAULT; - goto out; - } - - spin_lock_irqsave(&s->lock, flags); - db->count += cnt; - db->nextIn += cnt; - if (db->nextIn >= db->rawbuf + db->dmasize) - db->nextIn -= db->dmasize; - - /* If the data is available, we want to keep two buffers - * on the dma queue. If the queue count reaches zero, - * we know the dma has stopped. - */ - while ((db->dma_qcount < 2) && (db->count >= db->fragsize)) { - if (au1xxx_dbdma_put_source(db->dmanr, - virt_to_phys(db->nextOut), db->fragsize, - DDMA_FLAGS_IE) == 0) { - err("qcount < 2 and no ring room!"); - } - db->nextOut += db->fragsize; - if (db->nextOut >= db->rawbuf + db->dmasize) - db->nextOut -= db->dmasize; - db->total_bytes += db->dma_fragsize; - if (db->dma_qcount == 0) - start_dac(s); - db->dma_qcount++; - } - spin_unlock_irqrestore(&s->lock, flags); - - count -= cnt; - usercnt = cnt / db->cnt_factor; - buffer += usercnt; - ret += usercnt; - } /* while (count > 0) */ - -out: - mutex_unlock(&s->sem); -out2: - remove_wait_queue(&db->wait, &wait); - set_current_state(TASK_RUNNING); - return ret; -} - - -/* No kernel lock - we have our own spinlock */ -static unsigned int -au1550_poll(struct file *file, struct poll_table_struct *wait) -{ - struct au1550_state *s = file->private_data; - unsigned long flags; - unsigned int mask = 0; - - if (file->f_mode & FMODE_WRITE) { - if (!s->dma_dac.ready) - return 0; - poll_wait(file, &s->dma_dac.wait, wait); - } - if (file->f_mode & FMODE_READ) { - if (!s->dma_adc.ready) - return 0; - poll_wait(file, &s->dma_adc.wait, wait); - } - - spin_lock_irqsave(&s->lock, flags); - - if (file->f_mode & FMODE_READ) { - if (s->dma_adc.count >= (signed)s->dma_adc.dma_fragsize) - mask |= POLLIN | POLLRDNORM; - } - if (file->f_mode & FMODE_WRITE) { - if (s->dma_dac.mapped) { - if (s->dma_dac.count >= - (signed)s->dma_dac.dma_fragsize) - mask |= POLLOUT | POLLWRNORM; - } else { - if ((signed) s->dma_dac.dmasize >= - s->dma_dac.count + (signed)s->dma_dac.dma_fragsize) - mask |= POLLOUT | POLLWRNORM; - } - } - spin_unlock_irqrestore(&s->lock, flags); - return mask; -} - -static int -au1550_mmap(struct file *file, struct vm_area_struct *vma) -{ - struct au1550_state *s = file->private_data; - struct dmabuf *db; - unsigned long size; - int ret = 0; - - mutex_lock(&au1550_ac97_mutex); - mutex_lock(&s->sem); - if (vma->vm_flags & VM_WRITE) - db = &s->dma_dac; - else if (vma->vm_flags & VM_READ) - db = &s->dma_adc; - else { - ret = -EINVAL; - goto out; - } - if (vma->vm_pgoff != 0) { - ret = -EINVAL; - goto out; - } - size = vma->vm_end - vma->vm_start; - if (size > (PAGE_SIZE << db->buforder)) { - ret = -EINVAL; - goto out; - } - if (remap_pfn_range(vma, vma->vm_start, page_to_pfn(virt_to_page(db->rawbuf)), - size, vma->vm_page_prot)) { - ret = -EAGAIN; - goto out; - } - vma->vm_flags &= ~VM_IO; - db->mapped = 1; -out: - mutex_unlock(&s->sem); - mutex_unlock(&au1550_ac97_mutex); - return ret; -} - -#ifdef DEBUG -static struct ioctl_str_t { - unsigned int cmd; - const char *str; -} ioctl_str[] = { - {SNDCTL_DSP_RESET, "SNDCTL_DSP_RESET"}, - {SNDCTL_DSP_SYNC, "SNDCTL_DSP_SYNC"}, - {SNDCTL_DSP_SPEED, "SNDCTL_DSP_SPEED"}, - {SNDCTL_DSP_STEREO, "SNDCTL_DSP_STEREO"}, - {SNDCTL_DSP_GETBLKSIZE, "SNDCTL_DSP_GETBLKSIZE"}, - {SNDCTL_DSP_SAMPLESIZE, "SNDCTL_DSP_SAMPLESIZE"}, - {SNDCTL_DSP_CHANNELS, "SNDCTL_DSP_CHANNELS"}, - {SOUND_PCM_WRITE_CHANNELS, "SOUND_PCM_WRITE_CHANNELS"}, - {SOUND_PCM_WRITE_FILTER, "SOUND_PCM_WRITE_FILTER"}, - {SNDCTL_DSP_POST, "SNDCTL_DSP_POST"}, - {SNDCTL_DSP_SUBDIVIDE, "SNDCTL_DSP_SUBDIVIDE"}, - {SNDCTL_DSP_SETFRAGMENT, "SNDCTL_DSP_SETFRAGMENT"}, - {SNDCTL_DSP_GETFMTS, "SNDCTL_DSP_GETFMTS"}, - {SNDCTL_DSP_SETFMT, "SNDCTL_DSP_SETFMT"}, - {SNDCTL_DSP_GETOSPACE, "SNDCTL_DSP_GETOSPACE"}, - {SNDCTL_DSP_GETISPACE, "SNDCTL_DSP_GETISPACE"}, - {SNDCTL_DSP_NONBLOCK, "SNDCTL_DSP_NONBLOCK"}, - {SNDCTL_DSP_GETCAPS, "SNDCTL_DSP_GETCAPS"}, - {SNDCTL_DSP_GETTRIGGER, "SNDCTL_DSP_GETTRIGGER"}, - {SNDCTL_DSP_SETTRIGGER, "SNDCTL_DSP_SETTRIGGER"}, - {SNDCTL_DSP_GETIPTR, "SNDCTL_DSP_GETIPTR"}, - {SNDCTL_DSP_GETOPTR, "SNDCTL_DSP_GETOPTR"}, - {SNDCTL_DSP_MAPINBUF, "SNDCTL_DSP_MAPINBUF"}, - {SNDCTL_DSP_MAPOUTBUF, "SNDCTL_DSP_MAPOUTBUF"}, - {SNDCTL_DSP_SETSYNCRO, "SNDCTL_DSP_SETSYNCRO"}, - {SNDCTL_DSP_SETDUPLEX, "SNDCTL_DSP_SETDUPLEX"}, - {SNDCTL_DSP_GETODELAY, "SNDCTL_DSP_GETODELAY"}, - {SNDCTL_DSP_GETCHANNELMASK, "SNDCTL_DSP_GETCHANNELMASK"}, - {SNDCTL_DSP_BIND_CHANNEL, "SNDCTL_DSP_BIND_CHANNEL"}, - {OSS_GETVERSION, "OSS_GETVERSION"}, - {SOUND_PCM_READ_RATE, "SOUND_PCM_READ_RATE"}, - {SOUND_PCM_READ_CHANNELS, "SOUND_PCM_READ_CHANNELS"}, - {SOUND_PCM_READ_BITS, "SOUND_PCM_READ_BITS"}, - {SOUND_PCM_READ_FILTER, "SOUND_PCM_READ_FILTER"} -}; -#endif - -static int -dma_count_done(struct dmabuf *db) -{ - if (db->stopped) - return 0; - - return db->dma_fragsize - au1xxx_get_dma_residue(db->dmanr); -} - - -static int -au1550_ioctl(struct file *file, unsigned int cmd, unsigned long arg) -{ - struct au1550_state *s = file->private_data; - unsigned long flags; - audio_buf_info abinfo; - count_info cinfo; - int count; - int val, mapped, ret, diff; - - mapped = ((file->f_mode & FMODE_WRITE) && s->dma_dac.mapped) || - ((file->f_mode & FMODE_READ) && s->dma_adc.mapped); - -#ifdef DEBUG - for (count = 0; count < ARRAY_SIZE(ioctl_str); count++) { - if (ioctl_str[count].cmd == cmd) - break; - } - if (count < ARRAY_SIZE(ioctl_str)) - pr_debug("ioctl %s, arg=0x%lxn", ioctl_str[count].str, arg); - else - pr_debug("ioctl 0x%x unknown, arg=0x%lx\n", cmd, arg); -#endif - - switch (cmd) { - case OSS_GETVERSION: - return put_user(SOUND_VERSION, (int *) arg); - - case SNDCTL_DSP_SYNC: - if (file->f_mode & FMODE_WRITE) - return drain_dac(s, file->f_flags & O_NONBLOCK); - return 0; - - case SNDCTL_DSP_SETDUPLEX: - return 0; - - case SNDCTL_DSP_GETCAPS: - return put_user(DSP_CAP_DUPLEX | DSP_CAP_REALTIME | - DSP_CAP_TRIGGER | DSP_CAP_MMAP, (int *)arg); - - case SNDCTL_DSP_RESET: - if (file->f_mode & FMODE_WRITE) { - stop_dac(s); - synchronize_irq(); - s->dma_dac.count = s->dma_dac.total_bytes = 0; - s->dma_dac.nextIn = s->dma_dac.nextOut = - s->dma_dac.rawbuf; - } - if (file->f_mode & FMODE_READ) { - stop_adc(s); - synchronize_irq(); - s->dma_adc.count = s->dma_adc.total_bytes = 0; - s->dma_adc.nextIn = s->dma_adc.nextOut = - s->dma_adc.rawbuf; - } - return 0; - - case SNDCTL_DSP_SPEED: - if (get_user(val, (int *) arg)) - return -EFAULT; - if (val >= 0) { - if (file->f_mode & FMODE_READ) { - stop_adc(s); - set_adc_rate(s, val); - } - if (file->f_mode & FMODE_WRITE) { - stop_dac(s); - set_dac_rate(s, val); - } - if (s->open_mode & FMODE_READ) - if ((ret = prog_dmabuf_adc(s))) - return ret; - if (s->open_mode & FMODE_WRITE) - if ((ret = prog_dmabuf_dac(s))) - return ret; - } - return put_user((file->f_mode & FMODE_READ) ? - s->dma_adc.sample_rate : - s->dma_dac.sample_rate, - (int *)arg); - - case SNDCTL_DSP_STEREO: - if (get_user(val, (int *) arg)) - return -EFAULT; - if (file->f_mode & FMODE_READ) { - stop_adc(s); - s->dma_adc.num_channels = val ? 2 : 1; - if ((ret = prog_dmabuf_adc(s))) - return ret; - } - if (file->f_mode & FMODE_WRITE) { - stop_dac(s); - s->dma_dac.num_channels = val ? 2 : 1; - if (s->codec_ext_caps & AC97_EXT_DACS) { - /* disable surround and center/lfe in AC'97 - */ - u16 ext_stat = rdcodec(s->codec, - AC97_EXTENDED_STATUS); - wrcodec(s->codec, AC97_EXTENDED_STATUS, - ext_stat | (AC97_EXTSTAT_PRI | - AC97_EXTSTAT_PRJ | - AC97_EXTSTAT_PRK)); - } - if ((ret = prog_dmabuf_dac(s))) - return ret; - } - return 0; - - case SNDCTL_DSP_CHANNELS: - if (get_user(val, (int *) arg)) - return -EFAULT; - if (val != 0) { - if (file->f_mode & FMODE_READ) { - if (val < 0 || val > 2) - return -EINVAL; - stop_adc(s); - s->dma_adc.num_channels = val; - if ((ret = prog_dmabuf_adc(s))) - return ret; - } - if (file->f_mode & FMODE_WRITE) { - switch (val) { - case 1: - case 2: - break; - case 3: - case 5: - return -EINVAL; - case 4: - if (!(s->codec_ext_caps & - AC97_EXTID_SDAC)) - return -EINVAL; - break; - case 6: - if ((s->codec_ext_caps & - AC97_EXT_DACS) != AC97_EXT_DACS) - return -EINVAL; - break; - default: - return -EINVAL; - } - - stop_dac(s); - if (val <= 2 && - (s->codec_ext_caps & AC97_EXT_DACS)) { - /* disable surround and center/lfe - * channels in AC'97 - */ - u16 ext_stat = - rdcodec(s->codec, - AC97_EXTENDED_STATUS); - wrcodec(s->codec, - AC97_EXTENDED_STATUS, - ext_stat | (AC97_EXTSTAT_PRI | - AC97_EXTSTAT_PRJ | - AC97_EXTSTAT_PRK)); - } else if (val >= 4) { - /* enable surround, center/lfe - * channels in AC'97 - */ - u16 ext_stat = - rdcodec(s->codec, - AC97_EXTENDED_STATUS); - ext_stat &= ~AC97_EXTSTAT_PRJ; - if (val == 6) - ext_stat &= - ~(AC97_EXTSTAT_PRI | - AC97_EXTSTAT_PRK); - wrcodec(s->codec, - AC97_EXTENDED_STATUS, - ext_stat); - } - - s->dma_dac.num_channels = val; - if ((ret = prog_dmabuf_dac(s))) - return ret; - } - } - return put_user(val, (int *) arg); - - case SNDCTL_DSP_GETFMTS: /* Returns a mask */ - return put_user(AFMT_S16_LE | AFMT_U8, (int *) arg); - - case SNDCTL_DSP_SETFMT: /* Selects ONE fmt */ - if (get_user(val, (int *) arg)) - return -EFAULT; - if (val != AFMT_QUERY) { - if (file->f_mode & FMODE_READ) { - stop_adc(s); - if (val == AFMT_S16_LE) - s->dma_adc.sample_size = 16; - else { - val = AFMT_U8; - s->dma_adc.sample_size = 8; - } - if ((ret = prog_dmabuf_adc(s))) - return ret; - } - if (file->f_mode & FMODE_WRITE) { - stop_dac(s); - if (val == AFMT_S16_LE) - s->dma_dac.sample_size = 16; - else { - val = AFMT_U8; - s->dma_dac.sample_size = 8; - } - if ((ret = prog_dmabuf_dac(s))) - return ret; - } - } else { - if (file->f_mode & FMODE_READ) - val = (s->dma_adc.sample_size == 16) ? - AFMT_S16_LE : AFMT_U8; - else - val = (s->dma_dac.sample_size == 16) ? - AFMT_S16_LE : AFMT_U8; - } - return put_user(val, (int *) arg); - - case SNDCTL_DSP_POST: - return 0; - - case SNDCTL_DSP_GETTRIGGER: - val = 0; - spin_lock_irqsave(&s->lock, flags); - if (file->f_mode & FMODE_READ && !s->dma_adc.stopped) - val |= PCM_ENABLE_INPUT; - if (file->f_mode & FMODE_WRITE && !s->dma_dac.stopped) - val |= PCM_ENABLE_OUTPUT; - spin_unlock_irqrestore(&s->lock, flags); - return put_user(val, (int *) arg); - - case SNDCTL_DSP_SETTRIGGER: - if (get_user(val, (int *) arg)) - return -EFAULT; - if (file->f_mode & FMODE_READ) { - if (val & PCM_ENABLE_INPUT) { - spin_lock_irqsave(&s->lock, flags); - start_adc(s); - spin_unlock_irqrestore(&s->lock, flags); - } else - stop_adc(s); - } - if (file->f_mode & FMODE_WRITE) { - if (val & PCM_ENABLE_OUTPUT) { - spin_lock_irqsave(&s->lock, flags); - start_dac(s); - spin_unlock_irqrestore(&s->lock, flags); - } else - stop_dac(s); - } - return 0; - - case SNDCTL_DSP_GETOSPACE: - if (!(file->f_mode & FMODE_WRITE)) - return -EINVAL; - abinfo.fragsize = s->dma_dac.fragsize; - spin_lock_irqsave(&s->lock, flags); - count = s->dma_dac.count; - count -= dma_count_done(&s->dma_dac); - spin_unlock_irqrestore(&s->lock, flags); - if (count < 0) - count = 0; - abinfo.bytes = (s->dma_dac.dmasize - count) / - s->dma_dac.cnt_factor; - abinfo.fragstotal = s->dma_dac.numfrag; - abinfo.fragments = abinfo.bytes >> s->dma_dac.fragshift; - pr_debug("ioctl SNDCTL_DSP_GETOSPACE: bytes=%d, fragments=%d\n", abinfo.bytes, abinfo.fragments); - return copy_to_user((void *) arg, &abinfo, - sizeof(abinfo)) ? -EFAULT : 0; - - case SNDCTL_DSP_GETISPACE: - if (!(file->f_mode & FMODE_READ)) - return -EINVAL; - abinfo.fragsize = s->dma_adc.fragsize; - spin_lock_irqsave(&s->lock, flags); - count = s->dma_adc.count; - count += dma_count_done(&s->dma_adc); - spin_unlock_irqrestore(&s->lock, flags); - if (count < 0) - count = 0; - abinfo.bytes = count / s->dma_adc.cnt_factor; - abinfo.fragstotal = s->dma_adc.numfrag; - abinfo.fragments = abinfo.bytes >> s->dma_adc.fragshift; - return copy_to_user((void *) arg, &abinfo, - sizeof(abinfo)) ? -EFAULT : 0; - - case SNDCTL_DSP_NONBLOCK: - spin_lock(&file->f_lock); - file->f_flags |= O_NONBLOCK; - spin_unlock(&file->f_lock); - return 0; - - case SNDCTL_DSP_GETODELAY: - if (!(file->f_mode & FMODE_WRITE)) - return -EINVAL; - spin_lock_irqsave(&s->lock, flags); - count = s->dma_dac.count; - count -= dma_count_done(&s->dma_dac); - spin_unlock_irqrestore(&s->lock, flags); - if (count < 0) - count = 0; - count /= s->dma_dac.cnt_factor; - return put_user(count, (int *) arg); - - case SNDCTL_DSP_GETIPTR: - if (!(file->f_mode & FMODE_READ)) - return -EINVAL; - spin_lock_irqsave(&s->lock, flags); - cinfo.bytes = s->dma_adc.total_bytes; - count = s->dma_adc.count; - if (!s->dma_adc.stopped) { - diff = dma_count_done(&s->dma_adc); - count += diff; - cinfo.bytes += diff; - cinfo.ptr = virt_to_phys(s->dma_adc.nextIn) + diff - - virt_to_phys(s->dma_adc.rawbuf); - } else - cinfo.ptr = virt_to_phys(s->dma_adc.nextIn) - - virt_to_phys(s->dma_adc.rawbuf); - if (s->dma_adc.mapped) - s->dma_adc.count &= (s->dma_adc.dma_fragsize-1); - spin_unlock_irqrestore(&s->lock, flags); - if (count < 0) - count = 0; - cinfo.blocks = count >> s->dma_adc.fragshift; - return copy_to_user((void *) arg, &cinfo, sizeof(cinfo)); - - case SNDCTL_DSP_GETOPTR: - if (!(file->f_mode & FMODE_READ)) - return -EINVAL; - spin_lock_irqsave(&s->lock, flags); - cinfo.bytes = s->dma_dac.total_bytes; - count = s->dma_dac.count; - if (!s->dma_dac.stopped) { - diff = dma_count_done(&s->dma_dac); - count -= diff; - cinfo.bytes += diff; - cinfo.ptr = virt_to_phys(s->dma_dac.nextOut) + diff - - virt_to_phys(s->dma_dac.rawbuf); - } else - cinfo.ptr = virt_to_phys(s->dma_dac.nextOut) - - virt_to_phys(s->dma_dac.rawbuf); - if (s->dma_dac.mapped) - s->dma_dac.count &= (s->dma_dac.dma_fragsize-1); - spin_unlock_irqrestore(&s->lock, flags); - if (count < 0) - count = 0; - cinfo.blocks = count >> s->dma_dac.fragshift; - return copy_to_user((void *) arg, &cinfo, sizeof(cinfo)); - - case SNDCTL_DSP_GETBLKSIZE: - if (file->f_mode & FMODE_WRITE) - return put_user(s->dma_dac.fragsize, (int *) arg); - else - return put_user(s->dma_adc.fragsize, (int *) arg); - - case SNDCTL_DSP_SETFRAGMENT: - if (get_user(val, (int *) arg)) - return -EFAULT; - if (file->f_mode & FMODE_READ) { - stop_adc(s); - s->dma_adc.ossfragshift = val & 0xffff; - s->dma_adc.ossmaxfrags = (val >> 16) & 0xffff; - if (s->dma_adc.ossfragshift < 4) - s->dma_adc.ossfragshift = 4; - if (s->dma_adc.ossfragshift > 15) - s->dma_adc.ossfragshift = 15; - if (s->dma_adc.ossmaxfrags < 4) - s->dma_adc.ossmaxfrags = 4; - if ((ret = prog_dmabuf_adc(s))) - return ret; - } - if (file->f_mode & FMODE_WRITE) { - stop_dac(s); - s->dma_dac.ossfragshift = val & 0xffff; - s->dma_dac.ossmaxfrags = (val >> 16) & 0xffff; - if (s->dma_dac.ossfragshift < 4) - s->dma_dac.ossfragshift = 4; - if (s->dma_dac.ossfragshift > 15) - s->dma_dac.ossfragshift = 15; - if (s->dma_dac.ossmaxfrags < 4) - s->dma_dac.ossmaxfrags = 4; - if ((ret = prog_dmabuf_dac(s))) - return ret; - } - return 0; - - case SNDCTL_DSP_SUBDIVIDE: - if ((file->f_mode & FMODE_READ && s->dma_adc.subdivision) || - (file->f_mode & FMODE_WRITE && s->dma_dac.subdivision)) - return -EINVAL; - if (get_user(val, (int *) arg)) - return -EFAULT; - if (val != 1 && val != 2 && val != 4) - return -EINVAL; - if (file->f_mode & FMODE_READ) { - stop_adc(s); - s->dma_adc.subdivision = val; - if ((ret = prog_dmabuf_adc(s))) - return ret; - } - if (file->f_mode & FMODE_WRITE) { - stop_dac(s); - s->dma_dac.subdivision = val; - if ((ret = prog_dmabuf_dac(s))) - return ret; - } - return 0; - - case SOUND_PCM_READ_RATE: - return put_user((file->f_mode & FMODE_READ) ? - s->dma_adc.sample_rate : - s->dma_dac.sample_rate, - (int *)arg); - - case SOUND_PCM_READ_CHANNELS: - if (file->f_mode & FMODE_READ) - return put_user(s->dma_adc.num_channels, (int *)arg); - else - return put_user(s->dma_dac.num_channels, (int *)arg); - - case SOUND_PCM_READ_BITS: - if (file->f_mode & FMODE_READ) - return put_user(s->dma_adc.sample_size, (int *)arg); - else - return put_user(s->dma_dac.sample_size, (int *)arg); - - case SOUND_PCM_WRITE_FILTER: - case SNDCTL_DSP_SETSYNCRO: - case SOUND_PCM_READ_FILTER: - return -EINVAL; - } - - return mixdev_ioctl(s->codec, cmd, arg); -} - -static long -au1550_unlocked_ioctl(struct file *file, unsigned int cmd, unsigned long arg) -{ - int ret; - - mutex_lock(&au1550_ac97_mutex); - ret = au1550_ioctl(file, cmd, arg); - mutex_unlock(&au1550_ac97_mutex); - - return ret; -} - -static int -au1550_open(struct inode *inode, struct file *file) -{ - int minor = MINOR(inode->i_rdev); - DECLARE_WAITQUEUE(wait, current); - struct au1550_state *s = &au1550_state; - int ret; - -#ifdef DEBUG - if (file->f_flags & O_NONBLOCK) - pr_debug("open: non-blocking\n"); - else - pr_debug("open: blocking\n"); -#endif - - file->private_data = s; - mutex_lock(&au1550_ac97_mutex); - /* wait for device to become free */ - mutex_lock(&s->open_mutex); - while (s->open_mode & file->f_mode) { - ret = -EBUSY; - if (file->f_flags & O_NONBLOCK) - goto out; - add_wait_queue(&s->open_wait, &wait); - __set_current_state(TASK_INTERRUPTIBLE); - mutex_unlock(&s->open_mutex); - schedule(); - remove_wait_queue(&s->open_wait, &wait); - set_current_state(TASK_RUNNING); - ret = -ERESTARTSYS; - if (signal_pending(current)) - goto out2; - mutex_lock(&s->open_mutex); - } - - stop_dac(s); - stop_adc(s); - - if (file->f_mode & FMODE_READ) { - s->dma_adc.ossfragshift = s->dma_adc.ossmaxfrags = - s->dma_adc.subdivision = s->dma_adc.total_bytes = 0; - s->dma_adc.num_channels = 1; - s->dma_adc.sample_size = 8; - set_adc_rate(s, 8000); - if ((minor & 0xf) == SND_DEV_DSP16) - s->dma_adc.sample_size = 16; - } - - if (file->f_mode & FMODE_WRITE) { - s->dma_dac.ossfragshift = s->dma_dac.ossmaxfrags = - s->dma_dac.subdivision = s->dma_dac.total_bytes = 0; - s->dma_dac.num_channels = 1; - s->dma_dac.sample_size = 8; - set_dac_rate(s, 8000); - if ((minor & 0xf) == SND_DEV_DSP16) - s->dma_dac.sample_size = 16; - } - - if (file->f_mode & FMODE_READ) { - if ((ret = prog_dmabuf_adc(s))) - goto out; - } - if (file->f_mode & FMODE_WRITE) { - if ((ret = prog_dmabuf_dac(s))) - goto out; - } - - s->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE); - mutex_init(&s->sem); - ret = 0; -out: - mutex_unlock(&s->open_mutex); -out2: - mutex_unlock(&au1550_ac97_mutex); - return ret; -} - -static int -au1550_release(struct inode *inode, struct file *file) -{ - struct au1550_state *s = file->private_data; - - mutex_lock(&au1550_ac97_mutex); - - if (file->f_mode & FMODE_WRITE) { - mutex_unlock(&au1550_ac97_mutex); - drain_dac(s, file->f_flags & O_NONBLOCK); - mutex_lock(&au1550_ac97_mutex); - } - - mutex_lock(&s->open_mutex); - if (file->f_mode & FMODE_WRITE) { - stop_dac(s); - kfree(s->dma_dac.rawbuf); - s->dma_dac.rawbuf = NULL; - } - if (file->f_mode & FMODE_READ) { - stop_adc(s); - kfree(s->dma_adc.rawbuf); - s->dma_adc.rawbuf = NULL; - } - s->open_mode &= ((~file->f_mode) & (FMODE_READ|FMODE_WRITE)); - mutex_unlock(&s->open_mutex); - wake_up(&s->open_wait); - mutex_unlock(&au1550_ac97_mutex); - return 0; -} - -static /*const */ struct file_operations au1550_audio_fops = { - .owner = THIS_MODULE, - .llseek = au1550_llseek, - .read = au1550_read, - .write = au1550_write, - .poll = au1550_poll, - .unlocked_ioctl = au1550_unlocked_ioctl, - .mmap = au1550_mmap, - .open = au1550_open, - .release = au1550_release, -}; - -MODULE_AUTHOR("Advanced Micro Devices (AMD), dan@embeddededge.com"); -MODULE_DESCRIPTION("Au1550 AC97 Audio Driver"); -MODULE_LICENSE("GPL"); - - -static int __devinit -au1550_probe(void) -{ - struct au1550_state *s = &au1550_state; - int val; - - memset(s, 0, sizeof(struct au1550_state)); - - init_waitqueue_head(&s->dma_adc.wait); - init_waitqueue_head(&s->dma_dac.wait); - init_waitqueue_head(&s->open_wait); - mutex_init(&s->open_mutex); - spin_lock_init(&s->lock); - - s->codec = ac97_alloc_codec(); - if(s->codec == NULL) { - err("Out of memory"); - return -1; - } - s->codec->private_data = s; - s->codec->id = 0; - s->codec->codec_read = rdcodec; - s->codec->codec_write = wrcodec; - s->codec->codec_wait = waitcodec; - - if (!request_mem_region(CPHYSADDR(AC97_PSC_SEL), - 0x30, "Au1550 AC97")) { - err("AC'97 ports in use"); - } - - /* Allocate the DMA Channels - */ - if ((s->dma_dac.dmanr = au1xxx_dbdma_chan_alloc(DBDMA_MEM_CHAN, - DBDMA_AC97_TX_CHAN, dac_dma_interrupt, (void *)s)) == 0) { - err("Can't get DAC DMA"); - goto err_dma1; - } - au1xxx_dbdma_set_devwidth(s->dma_dac.dmanr, 16); - if (au1xxx_dbdma_ring_alloc(s->dma_dac.dmanr, - NUM_DBDMA_DESCRIPTORS) == 0) { - err("Can't get DAC DMA descriptors"); - goto err_dma1; - } - - if ((s->dma_adc.dmanr = au1xxx_dbdma_chan_alloc(DBDMA_AC97_RX_CHAN, - DBDMA_MEM_CHAN, adc_dma_interrupt, (void *)s)) == 0) { - err("Can't get ADC DMA"); - goto err_dma2; - } - au1xxx_dbdma_set_devwidth(s->dma_adc.dmanr, 16); - if (au1xxx_dbdma_ring_alloc(s->dma_adc.dmanr, - NUM_DBDMA_DESCRIPTORS) == 0) { - err("Can't get ADC DMA descriptors"); - goto err_dma2; - } - - pr_info("DAC: DMA%d, ADC: DMA%d", DBDMA_AC97_TX_CHAN, DBDMA_AC97_RX_CHAN); - - /* register devices */ - - if ((s->dev_audio = register_sound_dsp(&au1550_audio_fops, -1)) < 0) - goto err_dev1; - if ((s->codec->dev_mixer = - register_sound_mixer(&au1550_mixer_fops, -1)) < 0) - goto err_dev2; - - /* The GPIO for the appropriate PSC was configured by the - * board specific start up. - * - * configure PSC for AC'97 - */ - au_writel(0, AC97_PSC_CTRL); /* Disable PSC */ - au_sync(); - au_writel((PSC_SEL_CLK_SERCLK | PSC_SEL_PS_AC97MODE), AC97_PSC_SEL); - au_sync(); - - /* cold reset the AC'97 - */ - au_writel(PSC_AC97RST_RST, PSC_AC97RST); - au_sync(); - au1550_delay(10); - au_writel(0, PSC_AC97RST); - au_sync(); - - /* need to delay around 500msec(bleech) to give - some CODECs enough time to wakeup */ - au1550_delay(500); - - /* warm reset the AC'97 to start the bitclk - */ - au_writel(PSC_AC97RST_SNC, PSC_AC97RST); - au_sync(); - udelay(100); - au_writel(0, PSC_AC97RST); - au_sync(); - - /* Enable PSC - */ - au_writel(PSC_CTRL_ENABLE, AC97_PSC_CTRL); - au_sync(); - - /* Wait for PSC ready. - */ - do { - val = au_readl(PSC_AC97STAT); - au_sync(); - } while ((val & PSC_AC97STAT_SR) == 0); - - /* Configure AC97 controller. - * Deep FIFO, 16-bit sample, DMA, make sure DMA matches fifo size. - */ - val = PSC_AC97CFG_SET_LEN(16); - val |= PSC_AC97CFG_RT_FIFO8 | PSC_AC97CFG_TT_FIFO8; - - /* Enable device so we can at least - * talk over the AC-link. - */ - au_writel(val, PSC_AC97CFG); - au_writel(PSC_AC97MSK_ALLMASK, PSC_AC97MSK); - au_sync(); - val |= PSC_AC97CFG_DE_ENABLE; - au_writel(val, PSC_AC97CFG); - au_sync(); - - /* Wait for Device ready. - */ - do { - val = au_readl(PSC_AC97STAT); - au_sync(); - } while ((val & PSC_AC97STAT_DR) == 0); - - /* codec init */ - if (!ac97_probe_codec(s->codec)) - goto err_dev3; - - s->codec_base_caps = rdcodec(s->codec, AC97_RESET); - s->codec_ext_caps = rdcodec(s->codec, AC97_EXTENDED_ID); - pr_info("AC'97 Base/Extended ID = %04x/%04x", - s->codec_base_caps, s->codec_ext_caps); - - if (!(s->codec_ext_caps & AC97_EXTID_VRA)) { - /* codec does not support VRA - */ - s->no_vra = 1; - } else if (!vra) { - /* Boot option says disable VRA - */ - u16 ac97_extstat = rdcodec(s->codec, AC97_EXTENDED_STATUS); - wrcodec(s->codec, AC97_EXTENDED_STATUS, - ac97_extstat & ~AC97_EXTSTAT_VRA); - s->no_vra = 1; - } - if (s->no_vra) - pr_info("no VRA, interpolating and decimating"); - - /* set mic to be the recording source */ - val = SOUND_MASK_MIC; - mixdev_ioctl(s->codec, SOUND_MIXER_WRITE_RECSRC, - (unsigned long) &val); - - return 0; - - err_dev3: - unregister_sound_mixer(s->codec->dev_mixer); - err_dev2: - unregister_sound_dsp(s->dev_audio); - err_dev1: - au1xxx_dbdma_chan_free(s->dma_adc.dmanr); - err_dma2: - au1xxx_dbdma_chan_free(s->dma_dac.dmanr); - err_dma1: - release_mem_region(CPHYSADDR(AC97_PSC_SEL), 0x30); - - ac97_release_codec(s->codec); - return -1; -} - -static void __devinit -au1550_remove(void) -{ - struct au1550_state *s = &au1550_state; - - if (!s) - return; - synchronize_irq(); - au1xxx_dbdma_chan_free(s->dma_adc.dmanr); - au1xxx_dbdma_chan_free(s->dma_dac.dmanr); - release_mem_region(CPHYSADDR(AC97_PSC_SEL), 0x30); - unregister_sound_dsp(s->dev_audio); - unregister_sound_mixer(s->codec->dev_mixer); - ac97_release_codec(s->codec); -} - -static int __init -init_au1550(void) -{ - return au1550_probe(); -} - -static void __exit -cleanup_au1550(void) -{ - au1550_remove(); -} - -module_init(init_au1550); -module_exit(cleanup_au1550); - -#ifndef MODULE - -static int __init -au1550_setup(char *options) -{ - char *this_opt; - - if (!options || !*options) - return 0; - - while ((this_opt = strsep(&options, ","))) { - if (!*this_opt) - continue; - if (!strncmp(this_opt, "vra", 3)) { - vra = 1; - } - } - - return 1; -} - -__setup("au1550_audio=", au1550_setup); - -#endif /* MODULE */ diff --git a/sound/oss/audio.c b/sound/oss/audio.c index 7df48a25c4e..09c932f899b 100644 --- a/sound/oss/audio.c +++ b/sound/oss/audio.c @@ -354,7 +354,7 @@ int audio_read(int dev, struct file *file, char __user *buf, int count) if(copy_to_user(&(buf)[p], fixit, l)) return -EFAULT; - }; + } DMAbuf_rmchars(dev, buf_no, l); @@ -514,7 +514,7 @@ int audio_ioctl(int dev, struct file *file, unsigned int cmd, void __user *arg) count += dmap->bytes_in_use; /* Pointer wrap not handled yet */ count += dmap->byte_counter; - /* Substract current count from the number of bytes written by app */ + /* Subtract current count from the number of bytes written by app */ count = dmap->user_counter - count; if (count < 0) count = 0; @@ -931,7 +931,7 @@ static int dma_ioctl(int dev, unsigned int cmd, void __user *arg) if (count < dmap_out->fragment_size && dmap_out->qhead != 0) count += dmap_out->bytes_in_use; /* Pointer wrap not handled yet */ count += dmap_out->byte_counter; - /* Substract current count from the number of bytes written by app */ + /* Subtract current count from the number of bytes written by app */ count = dmap_out->user_counter - count; if (count < 0) count = 0; diff --git a/sound/oss/dev_table.c b/sound/oss/dev_table.c index 727bdb9ba2d..d8cf3e58dc7 100644 --- a/sound/oss/dev_table.c +++ b/sound/oss/dev_table.c @@ -71,7 +71,7 @@ int sound_install_audiodrv(int vers, char *name, struct audio_driver *driver, if (sound_nblocks >= MAX_MEM_BLOCKS) sound_nblocks = MAX_MEM_BLOCKS - 1; - op = (struct audio_operations *) (sound_mem_blocks[sound_nblocks] = vmalloc(sizeof(struct audio_operations))); + op = (struct audio_operations *) (sound_mem_blocks[sound_nblocks] = vzalloc(sizeof(struct audio_operations))); sound_nblocks++; if (sound_nblocks >= MAX_MEM_BLOCKS) sound_nblocks = MAX_MEM_BLOCKS - 1; @@ -81,7 +81,6 @@ int sound_install_audiodrv(int vers, char *name, struct audio_driver *driver, sound_unload_audiodev(num); return -(ENOMEM); } - memset((char *) op, 0, sizeof(struct audio_operations)); init_waitqueue_head(&op->in_sleeper); init_waitqueue_head(&op->out_sleeper); init_waitqueue_head(&op->poll_sleeper); @@ -128,7 +127,7 @@ int sound_install_mixer(int vers, char *name, struct mixer_operations *driver, /* FIXME: This leaks a mixer_operations struct every time its called until you unload sound! */ - op = (struct mixer_operations *) (sound_mem_blocks[sound_nblocks] = vmalloc(sizeof(struct mixer_operations))); + op = (struct mixer_operations *) (sound_mem_blocks[sound_nblocks] = vzalloc(sizeof(struct mixer_operations))); sound_nblocks++; if (sound_nblocks >= MAX_MEM_BLOCKS) sound_nblocks = MAX_MEM_BLOCKS - 1; @@ -137,7 +136,6 @@ int sound_install_mixer(int vers, char *name, struct mixer_operations *driver, printk(KERN_ERR "Sound: Can't allocate mixer driver for (%s)\n", name); return -ENOMEM; } - memset((char *) op, 0, sizeof(struct mixer_operations)); memcpy((char *) op, (char *) driver, driver_size); strlcpy(op->name, name, sizeof(op->name)); diff --git a/sound/oss/dev_table.h b/sound/oss/dev_table.h index b7617bee638..0199a317c5a 100644 --- a/sound/oss/dev_table.h +++ b/sound/oss/dev_table.h @@ -271,7 +271,7 @@ struct synth_operations void (*reset) (int dev); void (*hw_control) (int dev, unsigned char *event); int (*load_patch) (int dev, int format, const char __user *addr, - int offs, int count, int pmgr_flag); + int count, int pmgr_flag); void (*aftertouch) (int dev, int voice, int pressure); void (*controller) (int dev, int voice, int ctrl_num, int value); void (*panning) (int dev, int voice, int value); diff --git a/sound/oss/dmabuf.c b/sound/oss/dmabuf.c index bcc3e8e0712..e3f29132d3a 100644 --- a/sound/oss/dmabuf.c +++ b/sound/oss/dmabuf.c @@ -28,6 +28,7 @@ #include <linux/mm.h> #include <linux/gfp.h> #include "sound_config.h" +#include "sleep.h" #define DMAP_FREE_ON_CLOSE 0 #define DMAP_KEEP_ON_CLOSE 1 @@ -114,7 +115,7 @@ static int sound_alloc_dmap(struct dma_buffparms *dmap) } } dmap->raw_buf = start_addr; - dmap->raw_buf_phys = virt_to_bus(start_addr); + dmap->raw_buf_phys = dma_map_single(NULL, start_addr, dmap->buffsize, DMA_BIDIRECTIONAL); for (page = virt_to_page(start_addr); page <= virt_to_page(end_addr); page++) SetPageReserved(page); @@ -139,6 +140,7 @@ static void sound_free_dmap(struct dma_buffparms *dmap) for (page = virt_to_page(start_addr); page <= virt_to_page(end_addr); page++) ClearPageReserved(page); + dma_unmap_single(NULL, dmap->raw_buf_phys, dmap->buffsize, DMA_BIDIRECTIONAL); free_pages((unsigned long) dmap->raw_buf, sz); dmap->raw_buf = NULL; } @@ -350,8 +352,7 @@ static void dma_reset_output(int dev) if (!signal_pending(current) && adev->dmap_out->qlen && adev->dmap_out->underrun_count == 0){ spin_unlock_irqrestore(&dmap->lock,flags); - interruptible_sleep_on_timeout(&adev->out_sleeper, - dmabuf_timeout(dmap)); + oss_broken_sleep_on(&adev->out_sleeper, dmabuf_timeout(dmap)); spin_lock_irqsave(&dmap->lock,flags); } adev->dmap_out->flags &= ~(DMA_SYNCING | DMA_ACTIVE); @@ -445,7 +446,7 @@ int DMAbuf_sync(int dev) long t = dmabuf_timeout(dmap); spin_unlock_irqrestore(&dmap->lock,flags); /* FIXME: not safe may miss events */ - t = interruptible_sleep_on_timeout(&adev->out_sleeper, t); + t = oss_broken_sleep_on(&adev->out_sleeper, t); spin_lock_irqsave(&dmap->lock,flags); if (!t) { adev->dmap_out->flags &= ~DMA_SYNCING; @@ -465,7 +466,7 @@ int DMAbuf_sync(int dev) while (!signal_pending(current) && adev->d->local_qlen(dev)){ spin_unlock_irqrestore(&dmap->lock,flags); - interruptible_sleep_on_timeout(&adev->out_sleeper, + oss_broken_sleep_on(&adev->out_sleeper, dmabuf_timeout(dmap)); spin_lock_irqsave(&dmap->lock,flags); } @@ -556,7 +557,6 @@ int DMAbuf_getrdbuffer(int dev, char **buf, int *len, int dontblock) unsigned long flags; int err = 0, n = 0; struct dma_buffparms *dmap = adev->dmap_in; - int go; if (!(adev->open_mode & OPEN_READ)) return -EIO; @@ -583,12 +583,11 @@ int DMAbuf_getrdbuffer(int dev, char **buf, int *len, int dontblock) spin_unlock_irqrestore(&dmap->lock,flags); return -EAGAIN; } - if ((go = adev->go)) + if (adev->go) timeout = dmabuf_timeout(dmap); spin_unlock_irqrestore(&dmap->lock,flags); - timeout = interruptible_sleep_on_timeout(&adev->in_sleeper, - timeout); + timeout = oss_broken_sleep_on(&adev->in_sleeper, timeout); if (!timeout) { /* FIXME: include device name */ err = -EIO; @@ -768,8 +767,7 @@ static int output_sleep(int dev, int dontblock) timeout_value = dmabuf_timeout(dmap); else timeout_value = MAX_SCHEDULE_TIMEOUT; - timeout_value = interruptible_sleep_on_timeout(&adev->out_sleeper, - timeout_value); + timeout_value = oss_broken_sleep_on(&adev->out_sleeper, timeout_value); if (timeout != MAX_SCHEDULE_TIMEOUT && !timeout_value) { printk(KERN_WARNING "Sound: DMA (output) timed out - IRQ/DRQ config error?\n"); dma_reset_output(dev); diff --git a/sound/oss/dmasound/dmasound.h b/sound/oss/dmasound/dmasound.h index 1308d8d3418..01019f06fa9 100644 --- a/sound/oss/dmasound/dmasound.h +++ b/sound/oss/dmasound/dmasound.h @@ -239,7 +239,6 @@ struct sound_queue { int busy, syncing, xruns, died; }; -#define SLEEP(queue) interruptible_sleep_on_timeout(&queue, HZ) #define WAKE_UP(queue) (wake_up_interruptible(&queue)) extern struct sound_queue dmasound_write_sq; diff --git a/sound/oss/dmasound/dmasound_core.c b/sound/oss/dmasound/dmasound_core.c index 87e2c72651f..f4ee85a4c42 100644 --- a/sound/oss/dmasound/dmasound_core.c +++ b/sound/oss/dmasound/dmasound_core.c @@ -619,15 +619,27 @@ static ssize_t sq_write(struct file *file, const char __user *src, size_t uLeft, } while (uLeft) { + DEFINE_WAIT(wait); + while (write_sq.count >= write_sq.max_active) { + prepare_to_wait(&write_sq.action_queue, &wait, TASK_INTERRUPTIBLE); sq_play(); - if (write_sq.non_blocking) + if (write_sq.non_blocking) { + finish_wait(&write_sq.action_queue, &wait); return uWritten > 0 ? uWritten : -EAGAIN; - SLEEP(write_sq.action_queue); - if (signal_pending(current)) + } + if (write_sq.count < write_sq.max_active) + break; + + schedule_timeout(HZ); + if (signal_pending(current)) { + finish_wait(&write_sq.action_queue, &wait); return uWritten > 0 ? uWritten : -EINTR; + } } + finish_wait(&write_sq.action_queue, &wait); + /* Here, we can avoid disabling the interrupt by first * copying and translating the data, and then updating * the write_sq variables. Until this is done, the interrupt @@ -707,11 +719,8 @@ static int sq_open2(struct sound_queue *sq, struct file *file, fmode_t mode, if (file->f_flags & O_NONBLOCK) return rc; rc = -EINTR; - while (sq->busy) { - SLEEP(sq->open_queue); - if (signal_pending(current)) - return rc; - } + if (wait_event_interruptible(sq->open_queue, !sq->busy)) + return rc; rc = 0; #else /* OSS manual says we will return EBUSY regardless @@ -835,7 +844,7 @@ static void sq_reset(void) shared_resources_initialised = 0 ; } -static int sq_fsync(struct file *filp, struct dentry *dentry) +static int sq_fsync(void) { int rc = 0; int timeout = 5; @@ -844,7 +853,8 @@ static int sq_fsync(struct file *filp, struct dentry *dentry) sq_play(); /* there may be an incomplete frame waiting */ while (write_sq.active) { - SLEEP(write_sq.sync_queue); + wait_event_interruptible_timeout(write_sq.sync_queue, + !write_sq.active, HZ); if (signal_pending(current)) { /* While waiting for audio output to drain, an * interrupt occurred. Stop audio output immediately @@ -874,7 +884,7 @@ static int sq_release(struct inode *inode, struct file *file) if (file->f_mode & FMODE_WRITE) { if (write_sq.busy) - rc = sq_fsync(file, file->f_path.dentry); + rc = sq_fsync(); sq_reset_output() ; /* make sure dma is stopped and all is quiet */ write_sq_release_buffers(); @@ -1021,11 +1031,11 @@ static int sq_ioctl(struct file *file, u_int cmd, u_long arg) case SNDCTL_DSP_SYNC: /* This call, effectively, has the same behaviour as SNDCTL_DSP_RESET except that it waits for output to finish before resetting - everything - read, however, is killed imediately. + everything - read, however, is killed immediately. */ result = 0 ; if (file->f_mode & FMODE_WRITE) { - result = sq_fsync(file, file->f_path.dentry); + result = sq_fsync(); sq_reset_output() ; } /* if we are the shared resource owner then release them */ diff --git a/sound/oss/dmasound/dmasound_paula.c b/sound/oss/dmasound/dmasound_paula.c index 87910e99213..c2d45a5848b 100644 --- a/sound/oss/dmasound/dmasound_paula.c +++ b/sound/oss/dmasound/dmasound_paula.c @@ -733,19 +733,7 @@ static struct platform_driver amiga_audio_driver = { }, }; -static int __init amiga_audio_init(void) -{ - return platform_driver_probe(&amiga_audio_driver, amiga_audio_probe); -} - -module_init(amiga_audio_init); - -static void __exit amiga_audio_exit(void) -{ - platform_driver_unregister(&amiga_audio_driver); -} - -module_exit(amiga_audio_exit); +module_platform_driver_probe(amiga_audio_driver, amiga_audio_probe); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:amiga-audio"); diff --git a/sound/oss/kahlua.c b/sound/oss/kahlua.c index 52d06a334e8..12be1fb512d 100644 --- a/sound/oss/kahlua.c +++ b/sound/oss/kahlua.c @@ -43,7 +43,7 @@ * not real hardware. */ -static u8 __devinit mixer_read(unsigned long io, u8 reg) +static u8 mixer_read(unsigned long io, u8 reg) { outb(reg, io + 4); udelay(20); @@ -52,7 +52,7 @@ static u8 __devinit mixer_read(unsigned long io, u8 reg) return reg; } -static int __devinit probe_one(struct pci_dev *pdev, const struct pci_device_id *ent) +static int probe_one(struct pci_dev *pdev, const struct pci_device_id *ent) { struct address_info *hw_config; unsigned long base; @@ -178,16 +178,14 @@ static int __devinit probe_one(struct pci_dev *pdev, const struct pci_device_id return 0; err_out_free: - pci_set_drvdata(pdev, NULL); kfree(hw_config); return 1; } -static void __devexit remove_one(struct pci_dev *pdev) +static void remove_one(struct pci_dev *pdev) { struct address_info *hw_config = pci_get_drvdata(pdev); sb_dsp_unload(hw_config, 0); - pci_set_drvdata(pdev, NULL); kfree(hw_config); } @@ -210,7 +208,7 @@ static struct pci_driver kahlua_driver = { .name = "kahlua", .id_table = id_tbl, .probe = probe_one, - .remove = __devexit_p(remove_one), + .remove = remove_one, }; @@ -220,7 +218,7 @@ static int __init kahlua_init_module(void) return pci_register_driver(&kahlua_driver); } -static void __devexit kahlua_cleanup_module(void) +static void kahlua_cleanup_module(void) { pci_unregister_driver(&kahlua_driver); } diff --git a/sound/oss/midi_synth.c b/sound/oss/midi_synth.c index 3c09374ea5b..2292c230d7e 100644 --- a/sound/oss/midi_synth.c +++ b/sound/oss/midi_synth.c @@ -476,7 +476,7 @@ EXPORT_SYMBOL(midi_synth_hw_control); int midi_synth_load_patch(int dev, int format, const char __user *addr, - int offs, int count, int pmgr_flag) + int count, int pmgr_flag) { int orig_dev = synth_devs[dev]->midi_dev; @@ -491,33 +491,29 @@ midi_synth_load_patch(int dev, int format, const char __user *addr, if (!prefix_cmd(orig_dev, 0xf0)) return 0; + /* Invalid patch format */ if (format != SYSEX_PATCH) - { -/* printk("MIDI Error: Invalid patch format (key) 0x%x\n", format);*/ return -EINVAL; - } + + /* Patch header too short */ if (count < hdr_size) - { -/* printk("MIDI Error: Patch header too short\n");*/ return -EINVAL; - } + count -= hdr_size; /* - * Copy the header from user space but ignore the first bytes which have - * been transferred already. + * Copy the header from user space */ - if(copy_from_user(&((char *) &sysex)[offs], &(addr)[offs], hdr_size - offs)) + if (copy_from_user(&sysex, addr, hdr_size)) return -EFAULT; - - if (count < sysex.len) - { -/* printk(KERN_WARNING "MIDI Warning: Sysex record too short (%d<%d)\n", count, (int) sysex.len);*/ + + /* Sysex record too short */ + if ((unsigned)count < (unsigned)sysex.len) sysex.len = count; - } - left = sysex.len; - src_offs = 0; + + left = sysex.len; + src_offs = 0; for (i = 0; i < left && !signal_pending(current); i++) { diff --git a/sound/oss/midi_synth.h b/sound/oss/midi_synth.h index 6bc9d00bc77..b64ddd6c4ab 100644 --- a/sound/oss/midi_synth.h +++ b/sound/oss/midi_synth.h @@ -8,7 +8,7 @@ int midi_synth_open (int dev, int mode); void midi_synth_close (int dev); void midi_synth_hw_control (int dev, unsigned char *event); int midi_synth_load_patch (int dev, int format, const char __user * addr, - int offs, int count, int pmgr_flag); + int count, int pmgr_flag); void midi_synth_panning (int dev, int channel, int pressure); void midi_synth_aftertouch (int dev, int channel, int pressure); void midi_synth_controller (int dev, int channel, int ctrl_num, int value); diff --git a/sound/oss/midibuf.c b/sound/oss/midibuf.c index 782b3b84dac..8f45cd99996 100644 --- a/sound/oss/midibuf.c +++ b/sound/oss/midibuf.c @@ -86,9 +86,8 @@ static void drain_midi_queue(int dev) */ if (midi_devs[dev]->buffer_status != NULL) - while (!signal_pending(current) && midi_devs[dev]->buffer_status(dev)) - interruptible_sleep_on_timeout(&midi_sleeper[dev], - HZ/10); + wait_event_interruptible_timeout(midi_sleeper[dev], + !midi_devs[dev]->buffer_status(dev), HZ/10); } static void midi_input_intr(int dev, unsigned char data) @@ -178,7 +177,7 @@ int MIDIbuf_open(int dev, struct file *file) return err; parms[dev].prech_timeout = MAX_SCHEDULE_TIMEOUT; - midi_in_buf[dev] = (struct midi_buf *) vmalloc(sizeof(struct midi_buf)); + midi_in_buf[dev] = vmalloc(sizeof(struct midi_buf)); if (midi_in_buf[dev] == NULL) { @@ -188,7 +187,7 @@ int MIDIbuf_open(int dev, struct file *file) } midi_in_buf[dev]->len = midi_in_buf[dev]->head = midi_in_buf[dev]->tail = 0; - midi_out_buf[dev] = (struct midi_buf *) vmalloc(sizeof(struct midi_buf)); + midi_out_buf[dev] = vmalloc(sizeof(struct midi_buf)); if (midi_out_buf[dev] == NULL) { @@ -233,8 +232,8 @@ void MIDIbuf_release(int dev, struct file *file) * devices */ - while (!signal_pending(current) && DATA_AVAIL(midi_out_buf[dev])) - interruptible_sleep_on(&midi_sleeper[dev]); + wait_event_interruptible(midi_sleeper[dev], + !DATA_AVAIL(midi_out_buf[dev])); /* * Sync */ @@ -282,8 +281,8 @@ int MIDIbuf_write(int dev, struct file *file, const char __user *buf, int count) goto out; } - interruptible_sleep_on(&midi_sleeper[dev]); - if (signal_pending(current)) + if (wait_event_interruptible(midi_sleeper[dev], + SPACE_AVAIL(midi_out_buf[dev]))) { c = -EINTR; goto out; @@ -295,7 +294,7 @@ int MIDIbuf_write(int dev, struct file *file, const char __user *buf, int count) for (i = 0; i < n; i++) { - /* BROKE BROKE BROKE - CANT DO THIS WITH CLI !! */ + /* BROKE BROKE BROKE - CAN'T DO THIS WITH CLI !! */ /* yes, think the same, so I removed the cli() brackets QUEUE_BYTE is protected against interrupts */ if (copy_from_user((char *) &tmp_data, &(buf)[c], 1)) { @@ -325,8 +324,9 @@ int MIDIbuf_read(int dev, struct file *file, char __user *buf, int count) c = -EAGAIN; goto out; } - interruptible_sleep_on_timeout(&input_sleeper[dev], - parms[dev].prech_timeout); + wait_event_interruptible_timeout(input_sleeper[dev], + DATA_AVAIL(midi_in_buf[dev]), + parms[dev].prech_timeout); if (signal_pending(current)) c = -EINTR; /* The user is getting restless */ diff --git a/sound/oss/mpu401.c b/sound/oss/mpu401.c index 25e4609f833..3bbc3ec5be8 100644 --- a/sound/oss/mpu401.c +++ b/sound/oss/mpu401.c @@ -567,7 +567,6 @@ static int mpu401_out(int dev, unsigned char midi_byte) static int mpu401_command(int dev, mpu_command_rec * cmd) { int i, timeout, ok; - int ret = 0; unsigned long flags; struct mpu_config *devc; @@ -644,7 +643,6 @@ retry: } } } - ret = 0; cmd->data[0] = 0; if (cmd->nr_returns) @@ -666,7 +664,7 @@ retry: } } spin_unlock_irqrestore(&devc->lock,flags); - return ret; + return 0; } static int mpu_cmd(int dev, int cmd, int data) diff --git a/sound/oss/msnd_pinnacle.c b/sound/oss/msnd_pinnacle.c index 7b5c77b32a9..c23f9f95bfa 100644 --- a/sound/oss/msnd_pinnacle.c +++ b/sound/oss/msnd_pinnacle.c @@ -642,7 +642,7 @@ static int mixer_ioctl(unsigned int cmd, unsigned long arg) static long dev_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { - int minor = iminor(file->f_path.dentry->d_inode); + int minor = iminor(file_inode(file)); int ret; if (cmd == OSS_GETVERSION) { @@ -664,12 +664,15 @@ static long dev_ioctl(struct file *file, unsigned int cmd, unsigned long arg) static void dsp_write_flush(void) { + int timeout = get_play_delay_jiffies(dev.DAPF.len); + if (!(dev.mode & FMODE_WRITE) || !test_bit(F_WRITING, &dev.flags)) return; set_bit(F_WRITEFLUSH, &dev.flags); - interruptible_sleep_on_timeout( - &dev.writeflush, - get_play_delay_jiffies(dev.DAPF.len)); + wait_event_interruptible_timeout( + dev.writeflush, + !test_bit(F_WRITEFLUSH, &dev.flags), + timeout); clear_bit(F_WRITEFLUSH, &dev.flags); if (!signal_pending(current)) { current->state = TASK_INTERRUPTIBLE; @@ -897,6 +900,7 @@ static int dsp_read(char __user *buf, size_t len) { int count = len; char *page = (char *)__get_free_page(GFP_KERNEL); + int timeout = get_rec_delay_jiffies(DAR_BUFF_SIZE); if (!page) return -ENOMEM; @@ -936,11 +940,11 @@ static int dsp_read(char __user *buf, size_t len) if (count > 0) { set_bit(F_READBLOCK, &dev.flags); - if (!interruptible_sleep_on_timeout( - &dev.readblock, - get_rec_delay_jiffies(DAR_BUFF_SIZE))) + if (wait_event_interruptible_timeout( + dev.readblock, + test_bit(F_READBLOCK, &dev.flags), + timeout) <= 0) clear_bit(F_READING, &dev.flags); - clear_bit(F_READBLOCK, &dev.flags); if (signal_pending(current)) { free_page((unsigned long)page); return -EINTR; @@ -955,6 +959,7 @@ static int dsp_write(const char __user *buf, size_t len) { int count = len; char *page = (char *)__get_free_page(GFP_KERNEL); + int timeout = get_play_delay_jiffies(DAP_BUFF_SIZE); if (!page) return -ENOMEM; @@ -995,10 +1000,10 @@ static int dsp_write(const char __user *buf, size_t len) if (count > 0) { set_bit(F_WRITEBLOCK, &dev.flags); - interruptible_sleep_on_timeout( - &dev.writeblock, - get_play_delay_jiffies(DAP_BUFF_SIZE)); - clear_bit(F_WRITEBLOCK, &dev.flags); + wait_event_interruptible_timeout( + dev.writeblock, + test_bit(F_WRITEBLOCK, &dev.flags), + timeout); if (signal_pending(current)) { free_page((unsigned long)page); return -EINTR; @@ -1012,7 +1017,7 @@ static int dsp_write(const char __user *buf, size_t len) static ssize_t dev_read(struct file *file, char __user *buf, size_t count, loff_t *off) { - int minor = iminor(file->f_path.dentry->d_inode); + int minor = iminor(file_inode(file)); if (minor == dev.dsp_minor) return dsp_read(buf, count); else @@ -1021,7 +1026,7 @@ static ssize_t dev_read(struct file *file, char __user *buf, size_t count, loff_ static ssize_t dev_write(struct file *file, const char __user *buf, size_t count, loff_t *off) { - int minor = iminor(file->f_path.dentry->d_inode); + int minor = iminor(file_inode(file)); if (minor == dev.dsp_minor) return dsp_write(buf, count); else @@ -1044,7 +1049,7 @@ static __inline__ void eval_dsp_msg(register WORD wMessage) clear_bit(F_WRITING, &dev.flags); } - if (test_bit(F_WRITEBLOCK, &dev.flags)) + if (test_and_clear_bit(F_WRITEBLOCK, &dev.flags)) wake_up_interruptible(&dev.writeblock); break; @@ -1055,7 +1060,7 @@ static __inline__ void eval_dsp_msg(register WORD wMessage) pack_DARQ_to_DARF(dev.last_recbank); - if (test_bit(F_READBLOCK, &dev.flags)) + if (test_and_clear_bit(F_READBLOCK, &dev.flags)) wake_up_interruptible(&dev.readblock); break; @@ -1294,6 +1299,8 @@ static int __init calibrate_adc(WORD srate) static int upload_dsp_code(void) { + int ret = 0; + msnd_outb(HPBLKSEL_0, dev.io + HP_BLKS); #ifndef HAVE_DSPCODEH INITCODESIZE = mod_firmware_load(INITCODEFILE, &INITCODE); @@ -1312,7 +1319,8 @@ static int upload_dsp_code(void) memcpy_toio(dev.base, PERMCODE, PERMCODESIZE); if (msnd_upload_host(&dev, INITCODE, INITCODESIZE) < 0) { printk(KERN_WARNING LOGNAME ": Error uploading to DSP\n"); - return -ENODEV; + ret = -ENODEV; + goto out; } #ifdef HAVE_DSPCODEH printk(KERN_INFO LOGNAME ": DSP firmware uploaded (resident)\n"); @@ -1320,12 +1328,13 @@ static int upload_dsp_code(void) printk(KERN_INFO LOGNAME ": DSP firmware uploaded\n"); #endif +out: #ifndef HAVE_DSPCODEH vfree(INITCODE); vfree(PERMCODE); #endif - return 0; + return ret; } #ifdef MSND_CLASSIC @@ -1631,7 +1640,7 @@ static int ide_irq __initdata = 0; static int joystick_io __initdata = 0; /* If we have the digital daugherboard... */ -static int digital __initdata = 0; +static bool digital __initdata = false; #endif static int fifosize __initdata = DEFFIFOSIZE; @@ -1701,7 +1710,7 @@ static int joystick_io __initdata = CONFIG_MSNDPIN_JOYSTICK_IO; #ifndef CONFIG_MSNDPIN_DIGITAL # define CONFIG_MSNDPIN_DIGITAL 0 #endif -static int digital __initdata = CONFIG_MSNDPIN_DIGITAL; +static bool digital __initdata = CONFIG_MSNDPIN_DIGITAL; #endif /* MSND_CLASSIC */ diff --git a/sound/oss/opl3.c b/sound/oss/opl3.c index 938c48c4358..4709e592e2c 100644 --- a/sound/oss/opl3.c +++ b/sound/oss/opl3.c @@ -275,7 +275,6 @@ static int opl3_kill_note (int devno, int voice, int note, int velocity) devc->v_alloc->map[voice] = 0; map = &pv_map[devc->lv_map[voice]]; - DEB(printk("Kill note %d\n", voice)); if (map->voice_mode == 0) return 0; @@ -820,7 +819,7 @@ static void opl3_hw_control(int dev, unsigned char *event) } static int opl3_load_patch(int dev, int format, const char __user *addr, - int offs, int count, int pmgr_flag) + int count, int pmgr_flag) { struct sbi_instrument ins; @@ -830,11 +829,7 @@ static int opl3_load_patch(int dev, int format, const char __user *addr, return -EINVAL; } - /* - * What the fuck is going on here? We leave junk in the beginning - * of ins and then check the field pretty close to that beginning? - */ - if(copy_from_user(&((char *) &ins)[offs], addr + offs, sizeof(ins) - offs)) + if (copy_from_user(&ins, addr, sizeof(ins))) return -EFAULT; if (ins.channel < 0 || ins.channel >= SBFM_MAXINSTR) @@ -849,6 +844,10 @@ static int opl3_load_patch(int dev, int format, const char __user *addr, static void opl3_panning(int dev, int voice, int value) { + + if (voice < 0 || voice >= devc->nr_voice) + return; + devc->voc[voice].panning = value; } @@ -873,8 +872,6 @@ static void opl3_aftertouch(int dev, int voice, int pressure) map = &pv_map[devc->lv_map[voice]]; - DEB(printk("Aftertouch %d\n", voice)); - if (map->voice_mode == 0) return; @@ -1066,8 +1063,15 @@ static int opl3_alloc_voice(int dev, int chn, int note, struct voice_alloc_info static void opl3_setup_voice(int dev, int voice, int chn) { - struct channel_info *info = - &synth_devs[dev]->chn_info[chn]; + struct channel_info *info; + + if (voice < 0 || voice >= devc->nr_voice) + return; + + if (chn < 0 || chn > 15) + return; + + info = &synth_devs[dev]->chn_info[chn]; opl3_set_instr(dev, voice, info->pgm_num); @@ -1183,7 +1187,7 @@ static int opl3_init(int ioaddr, struct module *owner) for (i = 0; i < 18; i++) pv_map[i].ioaddr = devc->left_io; - }; + } conf_printf2(devc->fm_info.name, ioaddr, 0, -1, -1); for (i = 0; i < SBFM_MAXINSTR; i++) diff --git a/sound/oss/os.h b/sound/oss/os.h index a1a962d7f67..75ad0cd0c0a 100644 --- a/sound/oss/os.h +++ b/sound/oss/os.h @@ -16,7 +16,6 @@ #include <linux/slab.h> #include <linux/ioport.h> #include <asm/page.h> -#include <asm/system.h> #include <linux/vmalloc.h> #include <asm/uaccess.h> #include <linux/poll.h> diff --git a/sound/oss/pas2.h b/sound/oss/pas2.h index fa12c55f560..d19f757dbd7 100644 --- a/sound/oss/pas2.h +++ b/sound/oss/pas2.h @@ -15,3 +15,6 @@ int pas_init_mixer(void); /* From pas_midi.c */ void pas_midi_init(void); void pas_midi_interrupt(void); + +/* From pas2_mixer.c*/ +void mix_write(unsigned char data, int ioaddr); diff --git a/sound/oss/pas2_card.c b/sound/oss/pas2_card.c index 7f377ec3486..b07954a7953 100644 --- a/sound/oss/pas2_card.c +++ b/sound/oss/pas2_card.c @@ -41,19 +41,19 @@ static int pas_irq; static int pas_sb_base; DEFINE_SPINLOCK(pas_lock); #ifndef CONFIG_PAS_JOYSTICK -static int joystick; +static bool joystick; #else -static int joystick = 1; +static bool joystick = 1; #endif #ifdef SYMPHONY_PAS -static int symphony = 1; +static bool symphony = 1; #else -static int symphony; +static bool symphony; #endif #ifdef BROKEN_BUS_CLOCK -static int broken_bus_clock = 1; +static bool broken_bus_clock = 1; #else -static int broken_bus_clock; +static bool broken_bus_clock; #endif static struct address_info cfg; @@ -74,8 +74,6 @@ static char *pas_model_names[] = { * to support other than the default base address */ -extern void mix_write(unsigned char data, int ioaddr); - unsigned char pas_read(int ioaddr) { return inb(ioaddr + pas_translate_code); @@ -333,6 +331,11 @@ static void __init attach_pas_card(struct address_info *hw_config) { char temp[100]; + if (pas_model < 0 || + pas_model >= ARRAY_SIZE(pas_model_names)) { + printk(KERN_ERR "pas2 unrecognized model.\n"); + return; + } sprintf(temp, "%s rev %d", pas_model_names[(int) pas_model], pas_read(0x2789)); diff --git a/sound/oss/pas2_mixer.c b/sound/oss/pas2_mixer.c index a0bcb85c390..50b5bd50124 100644 --- a/sound/oss/pas2_mixer.c +++ b/sound/oss/pas2_mixer.c @@ -21,10 +21,6 @@ #include "pas2.h" -#ifndef DEB -#define DEB(what) /* (what) */ -#endif - extern int pas_translate_code; extern char pas_model; extern int *pas_osp; @@ -120,8 +116,6 @@ pas_mixer_set(int whichDev, unsigned int level) { int left, right, devmask, changed, i, mixer = 0; - DEB(printk("static int pas_mixer_set(int whichDev = %d, unsigned int level = %X)\n", whichDev, level)); - left = level & 0x7f; right = (level & 0x7f00) >> 8; @@ -207,8 +201,6 @@ pas_mixer_reset(void) { int foo; - DEB(printk("pas2_mixer.c: void pas_mixer_reset(void)\n")); - for (foo = 0; foo < SOUND_MIXER_NRDEVICES; foo++) pas_mixer_set(foo, levels[foo]); @@ -220,7 +212,6 @@ static int pas_mixer_ioctl(int dev, unsigned int cmd, void __user *arg) int level,v ; int __user *p = (int __user *)arg; - DEB(printk("pas2_mixer.c: int pas_mixer_ioctl(unsigned int cmd = %X, unsigned int arg = %X)\n", cmd, arg)); if (cmd == SOUND_MIXER_PRIVATE1) { /* Set loudness bit */ if (get_user(level, p)) return -EFAULT; diff --git a/sound/oss/pas2_pcm.c b/sound/oss/pas2_pcm.c index 8f7d175767a..474803b52f7 100644 --- a/sound/oss/pas2_pcm.c +++ b/sound/oss/pas2_pcm.c @@ -22,10 +22,6 @@ #include "pas2.h" -#ifndef DEB -#define DEB(WHAT) -#endif - #define PAS_PCM_INTRBITS (0x08) /* * Sample buffer timer interrupt enable @@ -63,13 +59,13 @@ static int pcm_set_speed(int arg) if (pcm_channels & 2) { - foo = ((CLOCK_TICK_RATE / 2) + (arg / 2)) / arg; - arg = ((CLOCK_TICK_RATE / 2) + (foo / 2)) / foo; + foo = ((PIT_TICK_RATE / 2) + (arg / 2)) / arg; + arg = ((PIT_TICK_RATE / 2) + (foo / 2)) / foo; } else { - foo = (CLOCK_TICK_RATE + (arg / 2)) / arg; - arg = (CLOCK_TICK_RATE + (foo / 2)) / foo; + foo = (PIT_TICK_RATE + (arg / 2)) / arg; + arg = (PIT_TICK_RATE + (foo / 2)) / foo; } pcm_speed = arg; @@ -156,8 +152,6 @@ static int pas_audio_ioctl(int dev, unsigned int cmd, void __user *arg) int val, ret; int __user *p = arg; - DEB(printk("pas2_pcm.c: static int pas_audio_ioctl(unsigned int cmd = %X, unsigned int arg = %X)\n", cmd, arg)); - switch (cmd) { case SOUND_PCM_WRITE_RATE: @@ -204,8 +198,6 @@ static int pas_audio_ioctl(int dev, unsigned int cmd, void __user *arg) static void pas_audio_reset(int dev) { - DEB(printk("pas2_pcm.c: static void pas_audio_reset(void)\n")); - pas_write(pas_read(0xF8A) & ~0x40, 0xF8A); /* Disable PCM */ } @@ -214,8 +206,6 @@ static int pas_audio_open(int dev, int mode) int err; unsigned long flags; - DEB(printk("pas2_pcm.c: static int pas_audio_open(int mode = %X)\n", mode)); - spin_lock_irqsave(&pas_lock, flags); if (pcm_busy) { @@ -239,8 +229,6 @@ static void pas_audio_close(int dev) { unsigned long flags; - DEB(printk("pas2_pcm.c: static void pas_audio_close(void)\n")); - spin_lock_irqsave(&pas_lock, flags); pas_audio_reset(dev); @@ -256,8 +244,6 @@ static void pas_audio_output_block(int dev, unsigned long buf, int count, { unsigned long flags, cnt; - DEB(printk("pas2_pcm.c: static void pas_audio_output_block(char *buf = %P, int count = %X)\n", buf, count)); - cnt = count; if (audio_devs[dev]->dmap_out->dma > 3) cnt >>= 1; @@ -303,8 +289,6 @@ static void pas_audio_start_input(int dev, unsigned long buf, int count, unsigned long flags; int cnt; - DEB(printk("pas2_pcm.c: static void pas_audio_start_input(char *buf = %P, int count = %X)\n", buf, count)); - cnt = count; if (audio_devs[dev]->dmap_out->dma > 3) cnt >>= 1; @@ -388,8 +372,6 @@ static struct audio_driver pas_audio_driver = void __init pas_pcm_init(struct address_info *hw_config) { - DEB(printk("pas2_pcm.c: long pas_pcm_init()\n")); - pcm_bitsok = 8; if (pas_read(0xEF8B) & 0x08) pcm_bitsok |= 16; diff --git a/sound/oss/pss.c b/sound/oss/pss.c index e19dd5dcc2d..145e36b2cfd 100644 --- a/sound/oss/pss.c +++ b/sound/oss/pss.c @@ -117,9 +117,9 @@ /* If compiled into kernel, it enable or disable pss mixer */ #ifdef CONFIG_PSS_MIXER -static int pss_mixer = 1; +static bool pss_mixer = 1; #else -static int pss_mixer; +static bool pss_mixer; #endif @@ -147,7 +147,7 @@ static DEFINE_SPINLOCK(lock); static int pss_initialized; static int nonstandard_microcode; static int pss_cdrom_port = -1; /* Parameter for the PSS cdrom port */ -static int pss_enable_joystick; /* Parameter for enabling the joystick */ +static bool pss_enable_joystick; /* Parameter for enabling the joystick */ static coproc_operations pss_coproc_operations; static void pss_write(pss_confdata *devc, int data) @@ -359,7 +359,7 @@ static int pss_download_boot(pss_confdata * devc, unsigned char *block, int size { /*_____ Send the next byte */ outw (*block++, REG (PSS_DATA)); - }; + } count++; } @@ -673,7 +673,8 @@ static void configure_nonsound_components(void) if (pss_cdrom_port == -1) { /* If cdrom port enablation wasn't requested */ printk(KERN_INFO "PSS: CDROM port not enabled.\n"); - } else if (check_region(pss_cdrom_port, 2)) { + } else if (!request_region(pss_cdrom_port, 2, "PSS CDROM")) { + pss_cdrom_port = -1; printk(KERN_ERR "PSS: CDROM I/O port conflict.\n"); } else { set_io_base(devc, CONF_CDROM, pss_cdrom_port); @@ -859,7 +860,7 @@ static int pss_coproc_ioctl(void *dev_info, unsigned int cmd, void __user *arg, return 0; case SNDCTL_COPR_LOAD: - buf = (copr_buffer *) vmalloc(sizeof(copr_buffer)); + buf = vmalloc(sizeof(copr_buffer)); if (buf == NULL) return -ENOSPC; if (copy_from_user(buf, arg, sizeof(copr_buffer))) { @@ -871,7 +872,7 @@ static int pss_coproc_ioctl(void *dev_info, unsigned int cmd, void __user *arg, return err; case SNDCTL_COPR_SENDMSG: - mbuf = (copr_msg *)vmalloc(sizeof(copr_msg)); + mbuf = vmalloc(sizeof(copr_msg)); if (mbuf == NULL) return -ENOSPC; if (copy_from_user(mbuf, arg, sizeof(copr_msg))) { @@ -895,7 +896,7 @@ static int pss_coproc_ioctl(void *dev_info, unsigned int cmd, void __user *arg, case SNDCTL_COPR_RCVMSG: err = 0; - mbuf = (copr_msg *)vmalloc(sizeof(copr_msg)); + mbuf = vmalloc(sizeof(copr_msg)); if (mbuf == NULL) return -ENOSPC; data = (unsigned short *)mbuf->data; @@ -1132,8 +1133,8 @@ static int mss_irq __initdata = -1; static int mss_dma __initdata = -1; static int mpu_io __initdata = -1; static int mpu_irq __initdata = -1; -static int pss_no_sound = 0; /* Just configure non-sound components */ -static int pss_keep_settings = 1; /* Keep hardware settings at module exit */ +static bool pss_no_sound = 0; /* Just configure non-sound components */ +static bool pss_keep_settings = 1; /* Keep hardware settings at module exit */ static char *pss_firmware = "/etc/sound/pss_synth"; module_param(pss_io, int, 0); @@ -1232,7 +1233,8 @@ static void __exit cleanup_pss(void) if(pssmpu) unload_pss_mpu(&cfg_mpu); unload_pss(&cfg); - } + } else if (pss_cdrom_port != -1) + release_region(pss_cdrom_port, 2); if(!pss_keep_settings) /* Keep hardware settings if asked */ { diff --git a/sound/oss/sb_audio.c b/sound/oss/sb_audio.c index 733b014ec7d..048439a1600 100644 --- a/sound/oss/sb_audio.c +++ b/sound/oss/sb_audio.c @@ -442,7 +442,7 @@ static int sb201_audio_set_speed(int dev, int speed) { sb_devc *devc = audio_devs[dev]->devc; int tmp; - int s = speed * devc->channels; + int s; if (speed > 0) { @@ -452,6 +452,7 @@ static int sb201_audio_set_speed(int dev, int speed) speed = 44100; if (devc->opened & OPEN_READ && speed > 15000) speed = 15000; + s = speed * devc->channels; devc->tconst = (256 - ((1000000 + s / 2) / s)) & 0xff; tmp = 256 - devc->tconst; speed = ((1000000 + tmp / 2) / tmp) / devc->channels; @@ -575,13 +576,15 @@ static int jazz16_audio_set_speed(int dev, int speed) if (speed > 0) { int tmp; - int s = speed * devc->channels; + int s; if (speed < 5000) speed = 5000; if (speed > 44100) speed = 44100; + s = speed * devc->channels; + devc->tconst = (256 - ((1000000 + s / 2) / s)) & 0xff; tmp = 256 - devc->tconst; diff --git a/sound/oss/sb_card.c b/sound/oss/sb_card.c index 84ef4d06c1c..fb5d7250de3 100644 --- a/sound/oss/sb_card.c +++ b/sound/oss/sb_card.c @@ -1,7 +1,7 @@ /* * sound/oss/sb_card.c * - * Detection routine for the ISA Sound Blaster and compatable sound + * Detection routine for the ISA Sound Blaster and compatible sound * cards. * * This file is distributed under the GNU GENERAL PUBLIC LICENSE (GPL) diff --git a/sound/oss/sb_common.c b/sound/oss/sb_common.c index 7d42c5418d1..3d50fb4236e 100644 --- a/sound/oss/sb_common.c +++ b/sound/oss/sb_common.c @@ -226,8 +226,6 @@ int sb_dsp_reset(sb_devc * devc) { int loopc; - DEB(printk("Entered sb_dsp_reset()\n")); - if (devc->model == MDL_ESS) return ess_dsp_reset (devc); /* This is only for non-ESS chips */ @@ -246,8 +244,6 @@ int sb_dsp_reset(sb_devc * devc) return 0; /* Sorry */ } - DEB(printk("sb_dsp_reset() OK\n")); - return 1; } @@ -626,13 +622,12 @@ int sb_dsp_detect(struct address_info *hw_config, int pci, int pciio, struct sb_ */ - detected_devc = kmalloc(sizeof(sb_devc), GFP_KERNEL); + detected_devc = kmemdup(devc, sizeof(sb_devc), GFP_KERNEL); if (detected_devc == NULL) { printk(KERN_ERR "sb: Can't allocate memory for device information\n"); return 0; } - memcpy(detected_devc, devc, sizeof(sb_devc)); MDB(printk(KERN_INFO "SB %d.%02d detected OK (%x)\n", devc->major, devc->minor, hw_config->io_base)); return 1; } diff --git a/sound/oss/sb_ess.c b/sound/oss/sb_ess.c index 9890cf2066f..b47a69026f1 100644 --- a/sound/oss/sb_ess.c +++ b/sound/oss/sb_ess.c @@ -168,7 +168,7 @@ * corresponding playback levels, unless recmask says they aren't recorded. In * the latter case the recording volumes are 0. * Now recording levels of inputs can be controlled, by changing the playback - * levels. Futhermore several devices can be recorded together (which is not + * levels. Furthermore several devices can be recorded together (which is not * possible with the ES1688). * Besides the separate recording level control for each input, the common * recording level can also be controlled by RECLEV as described above. @@ -865,8 +865,6 @@ printk(KERN_INFO "FKS: ess_dsp_reset 1\n"); ess_show_mixerregs (devc); #endif - DEB(printk("Entered ess_dsp_reset()\n")); - outb(3, DSP_RESET); /* Reset FIFO too */ udelay(10); @@ -881,8 +879,6 @@ ess_show_mixerregs (devc); } ess_extended (devc); - DEB(printk("sb_dsp_reset() OK\n")); - #ifdef FKS_LOGGING printk(KERN_INFO "FKS: dsp_reset 2\n"); ess_show_mixerregs (devc); @@ -1104,15 +1100,15 @@ int ess_init(sb_devc * devc, struct address_info *hw_config) default: printk (KERN_ERR "Invalid esstype=%d specified\n", devc->sbmo.esstype); return 0; - }; + } if (submodel != -1) { devc->submodel = submodel; sprintf (modelname, "ES%d", devc->sbmo.esstype); chip = modelname; - }; + } if (chip == NULL && (ess_minor & 0x0f) < 8) { chip = "ES688"; - }; + } #ifdef FKS_TEST FKS_test (devc); #endif @@ -1122,7 +1118,7 @@ FKS_test (devc); */ if (chip == NULL && devc->sbmo.esstype == ESSTYPE_LIKE20) { chip = "ES1688"; - }; + } if (chip == NULL) { int type; @@ -1150,8 +1146,8 @@ FKS_test (devc); if ((type & 0x00ff) != ((type >> 8) & 0x00ff)) { printk ("ess_init: Unrecognized %04x\n", type); } - }; - }; + } + } #if 0 /* * this one failed: @@ -1182,10 +1178,10 @@ FKS_test (devc); chip = "ES1788"; devc->submodel = SUBMDL_ES1788; } - }; + } if (chip == NULL) { chip = "ES1688"; - }; + } printk ( KERN_INFO "ESS chip %s %s%s\n" , chip @@ -1293,7 +1289,7 @@ printk(KERN_INFO "ess_set_dma_hw: dma8=%d,dma16=%d,dup=%d\n" default: printk(KERN_ERR "ESS1887: Invalid DMA16 %d\n", dma); return 0; - }; + } ess_chgmixer (devc, 0x78, 0x20, dma16_bits); ess_chgmixer (devc, 0x7d, 0x07, dma_bits); } @@ -1544,7 +1540,7 @@ static int ess_has_rec_mixer (int submodel) return 1; default: return 0; - }; + } }; #ifdef FKS_LOGGING @@ -1584,7 +1580,7 @@ printk(KERN_INFO "FKS: write mixer %x: %x\n", port, value); udelay(20); outb(((unsigned char) (value & 0xff)), MIXER_DATA); udelay(20); - }; + } spin_unlock_irqrestore(&devc->lock, flags); } @@ -1761,7 +1757,7 @@ int ess_mixer_reset (sb_devc * devc) ess_chgmixer(devc, 0x7a, 0x18, 0x08); ess_chgmixer(devc, 0x1c, 0x07, 0x07); break; - }; + } /* * Call set_recmask for proper initialization */ diff --git a/sound/oss/sb_mixer.c b/sound/oss/sb_mixer.c index 2039d31b7e2..acf7586aeb4 100644 --- a/sound/oss/sb_mixer.c +++ b/sound/oss/sb_mixer.c @@ -232,7 +232,7 @@ static int detect_mixer(sb_devc * devc) return 1; } -static void change_bits(sb_devc * devc, unsigned char *regval, int dev, int chn, int newval) +static void oss_change_bits(sb_devc *devc, unsigned char *regval, int dev, int chn, int newval) { unsigned char mask; int shift; @@ -284,7 +284,7 @@ int sb_common_mixer_set(sb_devc * devc, int dev, int left, int right) return -EINVAL; val = sb_getmixer(devc, regoffs); - change_bits(devc, &val, dev, LEFT_CHN, left); + oss_change_bits(devc, &val, dev, LEFT_CHN, left); if ((*devc->iomap)[dev][RIGHT_CHN].regno != regoffs) /* * Change register @@ -304,7 +304,7 @@ int sb_common_mixer_set(sb_devc * devc, int dev, int left, int right) * Read the new one */ } - change_bits(devc, &val, dev, RIGHT_CHN, right); + oss_change_bits(devc, &val, dev, RIGHT_CHN, right); sb_setmixer(devc, regoffs, val); @@ -410,7 +410,7 @@ static int set_recmask(sb_devc * devc, int mask) case MDL_SMW: if (devc->model == MDL_ESS && ess_set_recmask (devc, &devmask)) { break; - }; + } if (devmask != SOUND_MASK_MIC && devmask != SOUND_MASK_LINE && devmask != SOUND_MASK_CD) @@ -666,7 +666,7 @@ static void sb_mixer_reset(sb_devc * devc) if (devc->model != MDL_ESS || !ess_mixer_reset (devc)) { set_recmask(devc, SOUND_MASK_MIC); - }; + } } int sb_mixer_init(sb_devc * devc, struct module *owner) diff --git a/sound/oss/sequencer.c b/sound/oss/sequencer.c index e85789e5381..c0eea1dfe90 100644 --- a/sound/oss/sequencer.c +++ b/sound/oss/sequencer.c @@ -19,6 +19,7 @@ #include "sound_config.h" #include "midi_ctrl.h" +#include "sleep.h" static int sequencer_ok; static struct sound_timer_operations *tmr; @@ -100,8 +101,7 @@ int sequencer_read(int dev, struct file *file, char __user *buf, int count) return -EAGAIN; } - interruptible_sleep_on_timeout(&midi_sleeper, - pre_event_timeout); + oss_broken_sleep_on(&midi_sleeper, pre_event_timeout); spin_lock_irqsave(&lock,flags); if (!iqlen) { @@ -216,8 +216,6 @@ int sequencer_write(int dev, struct file *file, const char __user *buf, int coun dev = dev >> 4; - DEB(printk("sequencer_write(dev=%d, count=%d)\n", dev, count)); - if (mode == OPEN_READ) return -EIO; @@ -241,7 +239,7 @@ int sequencer_write(int dev, struct file *file, const char __user *buf, int coun return -ENXIO; fmt = (*(short *) &event_rec[0]) & 0xffff; - err = synth_devs[dev]->load_patch(dev, fmt, buf, p + 4, c, 0); + err = synth_devs[dev]->load_patch(dev, fmt, buf + p, c, 0); if (err < 0) return err; @@ -343,7 +341,7 @@ static int seq_queue(unsigned char *note, char nonblock) /* * Sleep until there is enough space on the queue */ - interruptible_sleep_on(&seq_sleeper); + oss_broken_sleep_on(&seq_sleeper, MAX_SCHEDULE_TIMEOUT); } if (qlen >= SEQ_MAX_QUEUE) { @@ -545,6 +543,9 @@ static void seq_chn_common_event(unsigned char *event_rec) case MIDI_PGM_CHANGE: if (seq_mode == SEQ_2) { + if (chn > 15) + break; + synth_devs[dev]->chn_info[chn].pgm_num = p1; if ((int) dev >= num_synths) synth_devs[dev]->set_instr(dev, chn, p1); @@ -596,6 +597,9 @@ static void seq_chn_common_event(unsigned char *event_rec) case MIDI_PITCH_BEND: if (seq_mode == SEQ_2) { + if (chn > 15) + break; + synth_devs[dev]->chn_info[chn].bender_value = w14; if ((int) dev < num_synths) @@ -953,8 +957,6 @@ int sequencer_open(int dev, struct file *file) dev = dev >> 4; mode = translate_mode(file); - DEB(printk("sequencer_open(dev=%d)\n", dev)); - if (!sequencer_ok) { /* printk("Sound card: sequencer not initialized\n");*/ @@ -1116,8 +1118,7 @@ static void seq_drain_midi_queues(void) */ if (n) - interruptible_sleep_on_timeout(&seq_sleeper, - HZ/10); + oss_broken_sleep_on(&seq_sleeper, HZ/10); } } @@ -1128,8 +1129,6 @@ void sequencer_release(int dev, struct file *file) dev = dev >> 4; - DEB(printk("sequencer_release(dev=%d)\n", dev)); - /* * Wait until the queue is empty (if we don't have nonblock) */ @@ -1139,8 +1138,7 @@ void sequencer_release(int dev, struct file *file) while (!signal_pending(current) && qlen > 0) { seq_sync(); - interruptible_sleep_on_timeout(&seq_sleeper, - 3*HZ); + oss_broken_sleep_on(&seq_sleeper, 3*HZ); /* Extra delay */ } } @@ -1195,7 +1193,7 @@ static int seq_sync(void) seq_startplay(); if (qlen > 0) - interruptible_sleep_on_timeout(&seq_sleeper, HZ); + oss_broken_sleep_on(&seq_sleeper, HZ); return qlen; } @@ -1218,7 +1216,7 @@ static void midi_outc(int dev, unsigned char data) spin_lock_irqsave(&lock,flags); while (n && !midi_devs[dev]->outputc(dev, data)) { - interruptible_sleep_on_timeout(&seq_sleeper, HZ/25); + oss_broken_sleep_on(&seq_sleeper, HZ/25); n--; } spin_unlock_irqrestore(&lock,flags); @@ -1646,13 +1644,13 @@ void sequencer_init(void) { if (sequencer_ok) return; - queue = (unsigned char *)vmalloc(SEQ_MAX_QUEUE * EV_SZ); + queue = vmalloc(SEQ_MAX_QUEUE * EV_SZ); if (queue == NULL) { printk(KERN_ERR "sequencer: Can't allocate memory for sequencer output queue\n"); return; } - iqueue = (unsigned char *)vmalloc(SEQ_MAX_QUEUE * IEV_SZ); + iqueue = vmalloc(SEQ_MAX_QUEUE * IEV_SZ); if (iqueue == NULL) { printk(KERN_ERR "sequencer: Can't allocate memory for sequencer input queue\n"); diff --git a/sound/oss/sleep.h b/sound/oss/sleep.h new file mode 100644 index 00000000000..a20fc925a5c --- /dev/null +++ b/sound/oss/sleep.h @@ -0,0 +1,18 @@ +#include <linux/wait.h> + +/* + * Do not use. This is a replacement for the old + * "interruptible_sleep_on_timeout" function that has been + * deprecated for ages. All users should instead try to use + * wait_event_interruptible_timeout. + */ + +static inline long +oss_broken_sleep_on(wait_queue_head_t *q, long timeout) +{ + DEFINE_WAIT(wait); + prepare_to_wait(q, &wait, TASK_INTERRUPTIBLE); + timeout = schedule_timeout(timeout); + finish_wait(q, &wait); + return timeout; +} diff --git a/sound/oss/sound_config.h b/sound/oss/sound_config.h index 9d35c4c65b9..f2554ab78f5 100644 --- a/sound/oss/sound_config.h +++ b/sound/oss/sound_config.h @@ -123,10 +123,6 @@ static inline int translate_mode(struct file *file) #include "sound_calls.h" #include "dev_table.h" -#ifndef DEB -#define DEB(x) -#endif - #ifndef DDB #define DDB(x) do {} while (0) #endif diff --git a/sound/oss/sound_timer.c b/sound/oss/sound_timer.c index 48cda6c4c25..8021c85f076 100644 --- a/sound/oss/sound_timer.c +++ b/sound/oss/sound_timer.c @@ -320,7 +320,7 @@ void sound_timer_init(struct sound_lowlev_timer *t, char *name) n = sound_alloc_timerdev(); if (n == -1) n = 0; /* Overwrite the system timer */ - strcpy(sound_timer.info.name, name); + strlcpy(sound_timer.info.name, name, sizeof(sound_timer.info.name)); sound_timer_devs[n] = &sound_timer; } EXPORT_SYMBOL(sound_timer_init); diff --git a/sound/oss/soundcard.c b/sound/oss/soundcard.c index 46c0d03dbec..b70c7c8f9c5 100644 --- a/sound/oss/soundcard.c +++ b/sound/oss/soundcard.c @@ -87,7 +87,7 @@ int *load_mixer_volumes(char *name, int *levels, int present) int i, n; for (i = 0; i < num_mixer_volumes; i++) { - if (strcmp(name, mixer_vols[i].name) == 0) { + if (strncmp(name, mixer_vols[i].name, 32) == 0) { if (present) mixer_vols[i].num = i; return mixer_vols[i].levels; @@ -99,7 +99,7 @@ int *load_mixer_volumes(char *name, int *levels, int present) } n = num_mixer_volumes++; - strcpy(mixer_vols[n].name, name); + strncpy(mixer_vols[n].name, name, 32); if (present) mixer_vols[n].num = n; @@ -143,7 +143,7 @@ static int get_mixer_levels(void __user * arg) static ssize_t sound_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { - int dev = iminor(file->f_path.dentry->d_inode); + int dev = iminor(file_inode(file)); int ret = -EINVAL; /* @@ -154,7 +154,6 @@ static ssize_t sound_read(struct file *file, char __user *buf, size_t count, lof mutex_lock(&soundcard_mutex); - DEB(printk("sound_read(dev=%d, count=%d)\n", dev, count)); switch (dev & 0x0f) { case SND_DEV_DSP: case SND_DEV_DSP16: @@ -176,11 +175,10 @@ static ssize_t sound_read(struct file *file, char __user *buf, size_t count, lof static ssize_t sound_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) { - int dev = iminor(file->f_path.dentry->d_inode); + int dev = iminor(file_inode(file)); int ret = -EINVAL; mutex_lock(&soundcard_mutex); - DEB(printk("sound_write(dev=%d, count=%d)\n", dev, count)); switch (dev & 0x0f) { case SND_DEV_SEQ: case SND_DEV_SEQ2: @@ -206,7 +204,6 @@ static int sound_open(struct inode *inode, struct file *file) int dev = iminor(inode); int retval; - DEB(printk("sound_open(dev=%d)\n", dev)); if ((dev >= SND_NDEVS) || (dev < 0)) { printk(KERN_ERR "Invalid minor device %d\n", dev); return -ENXIO; @@ -257,7 +254,6 @@ static int sound_release(struct inode *inode, struct file *file) int dev = iminor(inode); mutex_lock(&soundcard_mutex); - DEB(printk("sound_release(dev=%d)\n", dev)); switch (dev & 0x0f) { case SND_DEV_CTL: module_put(mixer_devs[dev >> 4]->owner); @@ -333,7 +329,7 @@ static int sound_mixer_ioctl(int mixdev, unsigned int cmd, void __user *arg) static long sound_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { int len = 0, dtype; - int dev = iminor(file->f_dentry->d_inode); + int dev = iminor(file_inode(file)); long ret = -EINVAL; void __user *p = (void __user *)arg; @@ -351,7 +347,6 @@ static long sound_ioctl(struct file *file, unsigned int cmd, unsigned long arg) if (!access_ok(VERIFY_WRITE, p, len)) return -EFAULT; } - DEB(printk("sound_ioctl(dev=%d, cmd=0x%x, arg=0x%x)\n", dev, cmd, arg)); if (cmd == OSS_GETVERSION) return __put_user(SOUND_VERSION, (int __user *)p); @@ -406,10 +401,9 @@ static long sound_ioctl(struct file *file, unsigned int cmd, unsigned long arg) static unsigned int sound_poll(struct file *file, poll_table * wait) { - struct inode *inode = file->f_path.dentry->d_inode; + struct inode *inode = file_inode(file); int dev = iminor(inode); - DEB(printk("sound_poll(dev=%d)\n", dev)); switch (dev & 0x0f) { case SND_DEV_SEQ: case SND_DEV_SEQ2: @@ -431,7 +425,7 @@ static int sound_mmap(struct file *file, struct vm_area_struct *vma) int dev_class; unsigned long size; struct dma_buffparms *dmap = NULL; - int dev = iminor(file->f_path.dentry->d_inode); + int dev = iminor(file_inode(file)); dev_class = dev & 0x0f; dev >>= 4; @@ -526,31 +520,21 @@ bad: } -/* These device names follow the official Linux device list, - * Documentation/devices.txt. Let us know if there are other - * common names we should support for compatibility. - * Only those devices not created by the generic code in sound_core.c are - * registered here. - */ -static const struct { - unsigned short minor; - char *name; - umode_t mode; - int *num; -} dev_list[] = { /* list of minor devices */ -/* seems to be some confusion here -- this device is not in the device list */ - {SND_DEV_DSP16, "dspW", S_IWUGO | S_IRUSR | S_IRGRP, - &num_audiodevs}, - {SND_DEV_AUDIO, "audio", S_IWUGO | S_IRUSR | S_IRGRP, - &num_audiodevs}, -}; - static int dmabuf; static int dmabug; module_param(dmabuf, int, 0444); module_param(dmabug, int, 0444); +/* additional minors for compatibility */ +struct oss_minor_dev { + unsigned short minor; + unsigned int enabled; +} dev_list[] = { + { SND_DEV_DSP16 }, + { SND_DEV_AUDIO }, +}; + static int __init oss_init(void) { int err; @@ -571,18 +555,12 @@ static int __init oss_init(void) sound_dmap_flag = (dmabuf > 0 ? 1 : 0); for (i = 0; i < ARRAY_SIZE(dev_list); i++) { - device_create(sound_class, NULL, - MKDEV(SOUND_MAJOR, dev_list[i].minor), NULL, - "%s", dev_list[i].name); - - if (!dev_list[i].num) - continue; - - for (j = 1; j < *dev_list[i].num; j++) - device_create(sound_class, NULL, - MKDEV(SOUND_MAJOR, - dev_list[i].minor + (j*0x10)), - NULL, "%s%d", dev_list[i].name, j); + j = 0; + do { + unsigned short minor = dev_list[i].minor + j * 0x10; + if (!register_sound_special(&oss_sound_fops, minor)) + dev_list[i].enabled = (1 << j); + } while (++j < num_audiodevs); } if (sound_nblocks >= MAX_MEM_BLOCKS - 1) @@ -596,11 +574,11 @@ static void __exit oss_cleanup(void) int i, j; for (i = 0; i < ARRAY_SIZE(dev_list); i++) { - device_destroy(sound_class, MKDEV(SOUND_MAJOR, dev_list[i].minor)); - if (!dev_list[i].num) - continue; - for (j = 1; j < *dev_list[i].num; j++) - device_destroy(sound_class, MKDEV(SOUND_MAJOR, dev_list[i].minor + (j*0x10))); + j = 0; + do { + if (dev_list[i].enabled & (1 << j)) + unregister_sound_special(dev_list[i].minor); + } while (++j < num_audiodevs); } unregister_sound_special(1); diff --git a/sound/oss/swarm_cs4297a.c b/sound/oss/swarm_cs4297a.c index 44357d877a2..a33e8ce8085 100644 --- a/sound/oss/swarm_cs4297a.c +++ b/sound/oss/swarm_cs4297a.c @@ -69,7 +69,6 @@ #include <linux/sound.h> #include <linux/slab.h> #include <linux/soundcard.h> -#include <linux/ac97_codec.h> #include <linux/pci.h> #include <linux/bitops.h> #include <linux/interrupt.h> @@ -91,6 +90,8 @@ #include <asm/sibyte/sb1250_mac.h> #include <asm/sibyte/sb1250.h> +#include "sleep.h" + struct cs4297a_state; static DEFINE_MUTEX(swarm_cs4297a_mutex); @@ -199,6 +200,22 @@ static const char invalid_magic[] = } \ }) +/* AC97 registers */ +#define AC97_MASTER_VOL_STEREO 0x0002 /* Line Out */ +#define AC97_PCBEEP_VOL 0x000a /* none */ +#define AC97_PHONE_VOL 0x000c /* TAD Input (mono) */ +#define AC97_MIC_VOL 0x000e /* MIC Input (mono) */ +#define AC97_LINEIN_VOL 0x0010 /* Line Input (stereo) */ +#define AC97_CD_VOL 0x0012 /* CD Input (stereo) */ +#define AC97_AUX_VOL 0x0016 /* Aux Input (stereo) */ +#define AC97_PCMOUT_VOL 0x0018 /* Wave Output (stereo) */ +#define AC97_RECORD_SELECT 0x001a /* */ +#define AC97_RECORD_GAIN 0x001c +#define AC97_GENERAL_PURPOSE 0x0020 +#define AC97_3D_CONTROL 0x0022 +#define AC97_POWER_CONTROL 0x0026 +#define AC97_VENDOR_ID1 0x007c + struct list_head cs4297a_devs = { &cs4297a_devs, &cs4297a_devs }; typedef struct serdma_descr_s { @@ -733,7 +750,7 @@ static int serdma_reg_access(struct cs4297a_state *s, u64 data) /* Since a writer has the DSP open, we have to mux the request in */ s->reg_request = data; - interruptible_sleep_on(&s->dma_dac.reg_wait); + oss_broken_sleep_on(&s->dma_dac.reg_wait, MAX_SCHEDULE_TIMEOUT); /* XXXKW how can I deal with the starvation case where the opener isn't writing? */ } else { @@ -775,7 +792,7 @@ static int cs4297a_read_ac97(struct cs4297a_state *s, u32 offset, if (serdma_reg_access(s, (0xCLL << 60) | (1LL << 47) | ((u64)(offset & 0x7F) << 40))) return -1; - interruptible_sleep_on(&s->dma_adc.reg_wait); + oss_broken_sleep_on(&s->dma_adc.reg_wait, MAX_SCHEDULE_TIMEOUT); *value = s->read_value; CS_DBGOUT(CS_AC97, 2, printk(KERN_INFO "cs4297a: rdr reg %x -> %x\n", s->read_reg, s->read_value)); @@ -875,7 +892,7 @@ static void start_adc(struct cs4297a_state *s) if (s->prop_adc.fmt & AFMT_S8 || s->prop_adc.fmt & AFMT_U8) { // // now only use 16 bit capture, due to truncation issue - // in the chip, noticable distortion occurs. + // in the chip, noticeable distortion occurs. // allocate buffer and then convert from 16 bit to // 8 bit for the user buffer. // @@ -1725,7 +1742,7 @@ static ssize_t cs4297a_read(struct file *file, char *buffer, size_t count, start_adc(s); if (file->f_flags & O_NONBLOCK) return ret ? ret : -EAGAIN; - interruptible_sleep_on(&s->dma_adc.wait); + oss_broken_sleep_on(&s->dma_adc.wait, MAX_SCHEDULE_TIMEOUT); if (signal_pending(current)) return ret ? ret : -ERESTARTSYS; continue; @@ -1821,7 +1838,7 @@ static ssize_t cs4297a_write(struct file *file, const char *buffer, start_dac(s); if (file->f_flags & O_NONBLOCK) return ret ? ret : -EAGAIN; - interruptible_sleep_on(&d->wait); + oss_broken_sleep_on(&d->wait, MAX_SCHEDULE_TIMEOUT); if (signal_pending(current)) return ret ? ret : -ERESTARTSYS; continue; @@ -2437,7 +2454,7 @@ static int cs4297a_locked_open(struct inode *inode, struct file *file) return -EBUSY; } mutex_unlock(&s->open_sem_dac); - interruptible_sleep_on(&s->open_wait_dac); + oss_broken_sleep_on(&s->open_wait_dac, MAX_SCHEDULE_TIMEOUT); if (signal_pending(current)) { printk("open - sig pending\n"); @@ -2454,7 +2471,7 @@ static int cs4297a_locked_open(struct inode *inode, struct file *file) return -EBUSY; } mutex_unlock(&s->open_sem_adc); - interruptible_sleep_on(&s->open_wait_adc); + oss_broken_sleep_on(&s->open_wait_adc, MAX_SCHEDULE_TIMEOUT); if (signal_pending(current)) { printk("open - sig pending\n"); @@ -2608,15 +2625,12 @@ static int __init cs4297a_init(void) u32 pwr, id; mm_segment_t fs; int rval; -#ifndef CONFIG_BCM_CS4297A_CSWARM u64 cfg; int mdio_val; -#endif CS_DBGOUT(CS_INIT | CS_FUNCTION, 2, printk(KERN_INFO "cs4297a: cs4297a_init_module()+ \n")); -#ifndef CONFIG_BCM_CS4297A_CSWARM mdio_val = __raw_readq(KSEG1 + A_MAC_REGISTER(2, R_MAC_MDIO)) & (M_MAC_MDIO_DIR|M_MAC_MDIO_OUT); @@ -2642,7 +2656,6 @@ static int __init cs4297a_init(void) __raw_writeq(mdio_val | M_MAC_GENC, KSEG1+A_MAC_REGISTER(2, R_MAC_MDIO)); /* Give the codec some time to finish resetting (start the bit clock) */ udelay(100); -#endif if (!(s = kzalloc(sizeof(struct cs4297a_state), GFP_KERNEL))) { CS_DBGOUT(CS_ERROR, 1, printk(KERN_ERR diff --git a/sound/oss/sys_timer.c b/sound/oss/sys_timer.c index 8db6aefe15e..9f039831114 100644 --- a/sound/oss/sys_timer.c +++ b/sound/oss/sys_timer.c @@ -57,7 +57,7 @@ poll_def_tmr(unsigned long dummy) { def_tmr.expires = (1) + jiffies; add_timer(&def_tmr); - }; + } if (tmr_running) { @@ -103,7 +103,7 @@ def_tmr_open(int dev, int mode) { def_tmr.expires = (1) + jiffies; add_timer(&def_tmr); - }; + } return 0; } diff --git a/sound/oss/trix.c b/sound/oss/trix.c index e04169e8e3f..944e0c01548 100644 --- a/sound/oss/trix.c +++ b/sound/oss/trix.c @@ -31,7 +31,7 @@ static int mpu; -static int joystick; +static bool joystick; static unsigned char trix_read(int addr) { diff --git a/sound/oss/uart401.c b/sound/oss/uart401.c index 8e514a676a0..62b8869f5a4 100644 --- a/sound/oss/uart401.c +++ b/sound/oss/uart401.c @@ -274,19 +274,12 @@ static int reset_uart401(uart401_devc * devc) } } - + /* Flush input before enabling interrupts */ if (ok) - { - DEB(printk("Reset UART401 OK\n")); - } + uart401_input_loop(devc); else DDB(printk("Reset UART401 failed - No hardware detected.\n")); - if (ok) - uart401_input_loop(devc); /* - * Flush input before enabling interrupts - */ - return ok; } @@ -352,23 +345,26 @@ int probe_uart401(struct address_info *hw_config, struct module *owner) goto cleanup_irq; } conf_printf(name, hw_config); - midi_devs[devc->my_dev] = kmalloc(sizeof(struct midi_operations), GFP_KERNEL); + midi_devs[devc->my_dev] = kmemdup(&uart401_operations, + sizeof(struct midi_operations), + GFP_KERNEL); if (!midi_devs[devc->my_dev]) { printk(KERN_ERR "uart401: Failed to allocate memory\n"); goto cleanup_unload_mididev; } - memcpy(midi_devs[devc->my_dev], &uart401_operations, sizeof(struct midi_operations)); if (owner) midi_devs[devc->my_dev]->owner = owner; midi_devs[devc->my_dev]->devc = devc; - midi_devs[devc->my_dev]->converter = kmalloc(sizeof(struct synth_operations), GFP_KERNEL); + midi_devs[devc->my_dev]->converter = kmemdup(&std_midi_synth, + sizeof(struct synth_operations), + GFP_KERNEL); + if (!midi_devs[devc->my_dev]->converter) { printk(KERN_WARNING "uart401: Failed to allocate memory\n"); goto cleanup_midi_devs; } - memcpy(midi_devs[devc->my_dev]->converter, &std_midi_synth, sizeof(struct synth_operations)); strcpy(midi_devs[devc->my_dev]->info.name, name); midi_devs[devc->my_dev]->converter->id = "UART401"; midi_devs[devc->my_dev]->converter->midi_dev = devc->my_dev; diff --git a/sound/oss/uart6850.c b/sound/oss/uart6850.c index f3f914aa92e..1079133dd6a 100644 --- a/sound/oss/uart6850.c +++ b/sound/oss/uart6850.c @@ -146,7 +146,7 @@ static int uart6850_open(int dev, int mode, { /* printk("Midi6850: Midi busy\n");*/ return -EBUSY; - }; + } uart6850_cmd(UART_RESET); uart6850_input_loop(); diff --git a/sound/oss/vidc.c b/sound/oss/vidc.c index f0e0caa5320..92ca5bee186 100644 --- a/sound/oss/vidc.c +++ b/sound/oss/vidc.c @@ -28,7 +28,6 @@ #include <asm/io.h> #include <asm/hardware/iomd.h> #include <asm/irq.h> -#include <asm/system.h> #include "sound_config.h" #include "vidc.h" @@ -227,7 +226,7 @@ static int vidc_audio_set_speed(int dev, int rate) } else { /*printk("VIDC: internal %d %d %d\n", rate, rate_int, hwrate);*/ hwctrl=0x00000003; - /* Allow rougly 0.4% tolerance */ + /* Allow roughly 0.4% tolerance */ if (diff_int > (rate/256)) rate=rate_int; } diff --git a/sound/oss/vwsnd.c b/sound/oss/vwsnd.c deleted file mode 100644 index 643f1113b1d..00000000000 --- a/sound/oss/vwsnd.c +++ /dev/null @@ -1,3498 +0,0 @@ -/* - * Sound driver for Silicon Graphics 320 and 540 Visual Workstations' - * onboard audio. See notes in Documentation/sound/oss/vwsnd . - * - * Copyright 1999 Silicon Graphics, Inc. All rights reserved. - * - * 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., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#undef VWSND_DEBUG /* define for debugging */ - -/* - * XXX to do - - * - * External sync. - * Rename swbuf, hwbuf, u&i, hwptr&swptr to something rational. - * Bug - if select() called before read(), pcm_setup() not called. - * Bug - output doesn't stop soon enough if process killed. - */ - -/* - * Things to test - - * - * Will readv/writev work? Write a test. - * - * insmod/rmmod 100 million times. - * - * Run I/O until int ptrs wrap around (roughly 6.2 hours @ DAT - * rate). - * - * Concurrent threads banging on mixer simultaneously, both UP - * and SMP kernels. Especially, watch for thread A changing - * OUTSRC while thread B changes gain -- both write to the same - * ad1843 register. - * - * What happens if a client opens /dev/audio then forks? - * Do two procs have /dev/audio open? Test. - * - * Pump audio through the CD, MIC and line inputs and verify that - * they mix/mute into the output. - * - * Apps: - * amp - * mpg123 - * x11amp - * mxv - * kmedia - * esound - * need more input apps - * - * Run tests while bombarding with signals. setitimer(2) will do it... */ - -/* - * This driver is organized in nine sections. - * The nine sections are: - * - * debug stuff - * low level lithium access - * high level lithium access - * AD1843 access - * PCM I/O - * audio driver - * mixer driver - * probe/attach/unload - * initialization and loadable kernel module interface - * - * That is roughly the order of increasing abstraction, so forward - * dependencies are minimal. - */ - -/* - * Locking Notes - * - * INC_USE_COUNT and DEC_USE_COUNT keep track of the number of - * open descriptors to this driver. They store it in vwsnd_use_count. - * The global device list, vwsnd_dev_list, is immutable when the IN_USE - * is true. - * - * devc->open_lock is a semaphore that is used to enforce the - * single reader/single writer rule for /dev/audio. The rule is - * that each device may have at most one reader and one writer. - * Open will block until the previous client has closed the - * device, unless O_NONBLOCK is specified. - * - * The semaphore devc->io_mutex serializes PCM I/O syscalls. This - * is unnecessary in Linux 2.2, because the kernel lock - * serializes read, write, and ioctl globally, but it's there, - * ready for the brave, new post-kernel-lock world. - * - * Locking between interrupt and baselevel is handled by the - * "lock" spinlock in vwsnd_port (one lock each for read and - * write). Each half holds the lock just long enough to see what - * area it owns and update its pointers. See pcm_output() and - * pcm_input() for most of the gory stuff. - * - * devc->mix_mutex serializes all mixer ioctls. This is also - * redundant because of the kernel lock. - * - * The lowest level lock is lith->lithium_lock. It is a - * spinlock which is held during the two-register tango of - * reading/writing an AD1843 register. See - * li_{read,write}_ad1843_reg(). - */ - -/* - * Sample Format Notes - * - * Lithium's DMA engine has two formats: 16-bit 2's complement - * and 8-bit unsigned . 16-bit transfers the data unmodified, 2 - * bytes per sample. 8-bit unsigned transfers 1 byte per sample - * and XORs each byte with 0x80. Lithium can input or output - * either mono or stereo in either format. - * - * The AD1843 has four formats: 16-bit 2's complement, 8-bit - * unsigned, 8-bit mu-Law and 8-bit A-Law. - * - * This driver supports five formats: AFMT_S8, AFMT_U8, - * AFMT_MU_LAW, AFMT_A_LAW, and AFMT_S16_LE. - * - * For AFMT_U8 output, we keep the AD1843 in 16-bit mode, and - * rely on Lithium's XOR to translate between U8 and S8. - * - * For AFMT_S8, AFMT_MU_LAW and AFMT_A_LAW output, we have to XOR - * the 0x80 bit in software to compensate for Lithium's XOR. - * This happens in pcm_copy_{in,out}(). - * - * Changes: - * 11-10-2000 Bartlomiej Zolnierkiewicz <bkz@linux-ide.org> - * Added some __init/__exit - */ - -#include <linux/module.h> -#include <linux/init.h> - -#include <linux/spinlock.h> -#include <linux/wait.h> -#include <linux/interrupt.h> -#include <linux/mutex.h> -#include <linux/slab.h> - -#include <asm/visws/cobalt.h> - -#include "sound_config.h" - -/*****************************************************************************/ -/* debug stuff */ - -#ifdef VWSND_DEBUG - -static DEFINE_MUTEX(vwsnd_mutex); -static int shut_up = 1; - -/* - * dbgassert - called when an assertion fails. - */ - -static void dbgassert(const char *fcn, int line, const char *expr) -{ - if (in_interrupt()) - panic("ASSERTION FAILED IN INTERRUPT, %s:%s:%d %s\n", - __FILE__, fcn, line, expr); - else { - int x; - printk(KERN_ERR "ASSERTION FAILED, %s:%s:%d %s\n", - __FILE__, fcn, line, expr); - x = * (volatile int *) 0; /* force proc to exit */ - } -} - -/* - * Bunch of useful debug macros: - * - * ASSERT - print unless e nonzero (panic if in interrupt) - * DBGDO - include arbitrary code if debugging - * DBGX - debug print raw (w/o function name) - * DBGP - debug print w/ function name - * DBGE - debug print function entry - * DBGC - debug print function call - * DBGR - debug print function return - * DBGXV - debug print raw when verbose - * DBGPV - debug print when verbose - * DBGEV - debug print function entry when verbose - * DBGRV - debug print function return when verbose - */ - -#define ASSERT(e) ((e) ? (void) 0 : dbgassert(__func__, __LINE__, #e)) -#define DBGDO(x) x -#define DBGX(fmt, args...) (in_interrupt() ? 0 : printk(KERN_ERR fmt, ##args)) -#define DBGP(fmt, args...) (DBGX("%s: " fmt, __func__ , ##args)) -#define DBGE(fmt, args...) (DBGX("%s" fmt, __func__ , ##args)) -#define DBGC(rtn) (DBGP("calling %s\n", rtn)) -#define DBGR() (DBGP("returning\n")) -#define DBGXV(fmt, args...) (shut_up ? 0 : DBGX(fmt, ##args)) -#define DBGPV(fmt, args...) (shut_up ? 0 : DBGP(fmt, ##args)) -#define DBGEV(fmt, args...) (shut_up ? 0 : DBGE(fmt, ##args)) -#define DBGCV(rtn) (shut_up ? 0 : DBGC(rtn)) -#define DBGRV() (shut_up ? 0 : DBGR()) - -#else /* !VWSND_DEBUG */ - -#define ASSERT(e) ((void) 0) -#define DBGDO(x) /* don't */ -#define DBGX(fmt, args...) ((void) 0) -#define DBGP(fmt, args...) ((void) 0) -#define DBGE(fmt, args...) ((void) 0) -#define DBGC(rtn) ((void) 0) -#define DBGR() ((void) 0) -#define DBGPV(fmt, args...) ((void) 0) -#define DBGXV(fmt, args...) ((void) 0) -#define DBGEV(fmt, args...) ((void) 0) -#define DBGCV(rtn) ((void) 0) -#define DBGRV() ((void) 0) - -#endif /* !VWSND_DEBUG */ - -/*****************************************************************************/ -/* low level lithium access */ - -/* - * We need to talk to Lithium registers on three pages. Here are - * the pages' offsets from the base address (0xFF001000). - */ - -enum { - LI_PAGE0_OFFSET = 0x01000 - 0x1000, /* FF001000 */ - LI_PAGE1_OFFSET = 0x0F000 - 0x1000, /* FF00F000 */ - LI_PAGE2_OFFSET = 0x10000 - 0x1000, /* FF010000 */ -}; - -/* low-level lithium data */ - -typedef struct lithium { - void * page0; /* virtual addresses */ - void * page1; - void * page2; - spinlock_t lock; /* protects codec and UST/MSC access */ -} lithium_t; - -/* - * li_destroy destroys the lithium_t structure and vm mappings. - */ - -static void li_destroy(lithium_t *lith) -{ - if (lith->page0) { - iounmap(lith->page0); - lith->page0 = NULL; - } - if (lith->page1) { - iounmap(lith->page1); - lith->page1 = NULL; - } - if (lith->page2) { - iounmap(lith->page2); - lith->page2 = NULL; - } -} - -/* - * li_create initializes the lithium_t structure and sets up vm mappings - * to access the registers. - * Returns 0 on success, -errno on failure. - */ - -static int __init li_create(lithium_t *lith, unsigned long baseaddr) -{ - spin_lock_init(&lith->lock); - lith->page0 = ioremap_nocache(baseaddr + LI_PAGE0_OFFSET, PAGE_SIZE); - lith->page1 = ioremap_nocache(baseaddr + LI_PAGE1_OFFSET, PAGE_SIZE); - lith->page2 = ioremap_nocache(baseaddr + LI_PAGE2_OFFSET, PAGE_SIZE); - if (!lith->page0 || !lith->page1 || !lith->page2) { - li_destroy(lith); - return -ENOMEM; - } - return 0; -} - -/* - * basic register accessors - read/write long/byte - */ - -static __inline__ unsigned long li_readl(lithium_t *lith, int off) -{ - return * (volatile unsigned long *) (lith->page0 + off); -} - -static __inline__ unsigned char li_readb(lithium_t *lith, int off) -{ - return * (volatile unsigned char *) (lith->page0 + off); -} - -static __inline__ void li_writel(lithium_t *lith, int off, unsigned long val) -{ - * (volatile unsigned long *) (lith->page0 + off) = val; -} - -static __inline__ void li_writeb(lithium_t *lith, int off, unsigned char val) -{ - * (volatile unsigned char *) (lith->page0 + off) = val; -} - -/*****************************************************************************/ -/* High Level Lithium Access */ - -/* - * Lithium DMA Notes - * - * Lithium has two dedicated DMA channels for audio. They are known - * as comm1 and comm2 (communication areas 1 and 2). Comm1 is for - * input, and comm2 is for output. Each is controlled by three - * registers: BASE (base address), CFG (config) and CCTL - * (config/control). - * - * Each DMA channel points to a physically contiguous ring buffer in - * main memory of up to 8 Kbytes. (This driver always uses 8 Kb.) - * There are three pointers into the ring buffer: read, write, and - * trigger. The pointers are 8 bits each. Each pointer points to - * 32-byte "chunks" of data. The DMA engine moves 32 bytes at a time, - * so there is no finer-granularity control. - * - * In comm1, the hardware updates the write ptr, and software updates - * the read ptr. In comm2, it's the opposite: hardware updates the - * read ptr, and software updates the write ptr. I designate the - * hardware-updated ptr as the hwptr, and the software-updated ptr as - * the swptr. - * - * The trigger ptr and trigger mask are used to trigger interrupts. - * From the Lithium spec, section 5.6.8, revision of 12/15/1998: - * - * Trigger Mask Value - * - * A three bit wide field that represents a power of two mask - * that is used whenever the trigger pointer is compared to its - * respective read or write pointer. A value of zero here - * implies a mask of 0xFF and a value of seven implies a mask - * 0x01. This value can be used to sub-divide the ring buffer - * into pie sections so that interrupts monitor the progress of - * hardware from section to section. - * - * My interpretation of that is, whenever the hw ptr is updated, it is - * compared with the trigger ptr, and the result is masked by the - * trigger mask. (Actually, by the complement of the trigger mask.) - * If the result is zero, an interrupt is triggered. I.e., interrupt - * if ((hwptr & ~mask) == (trptr & ~mask)). The mask is formed from - * the trigger register value as mask = (1 << (8 - tmreg)) - 1. - * - * In yet different words, setting tmreg to 0 causes an interrupt after - * every 256 DMA chunks (8192 bytes) or once per traversal of the - * ring buffer. Setting it to 7 caues an interrupt every 2 DMA chunks - * (64 bytes) or 128 times per traversal of the ring buffer. - */ - -/* Lithium register offsets and bit definitions */ - -#define LI_HOST_CONTROLLER 0x000 -# define LI_HC_RESET 0x00008000 -# define LI_HC_LINK_ENABLE 0x00004000 -# define LI_HC_LINK_FAILURE 0x00000004 -# define LI_HC_LINK_CODEC 0x00000002 -# define LI_HC_LINK_READY 0x00000001 - -#define LI_INTR_STATUS 0x010 -#define LI_INTR_MASK 0x014 -# define LI_INTR_LINK_ERR 0x00008000 -# define LI_INTR_COMM2_TRIG 0x00000008 -# define LI_INTR_COMM2_UNDERFLOW 0x00000004 -# define LI_INTR_COMM1_TRIG 0x00000002 -# define LI_INTR_COMM1_OVERFLOW 0x00000001 - -#define LI_CODEC_COMMAND 0x018 -# define LI_CC_BUSY 0x00008000 -# define LI_CC_DIR 0x00000080 -# define LI_CC_DIR_RD LI_CC_DIR -# define LI_CC_DIR_WR (!LI_CC_DIR) -# define LI_CC_ADDR_MASK 0x0000007F - -#define LI_CODEC_DATA 0x01C - -#define LI_COMM1_BASE 0x100 -#define LI_COMM1_CTL 0x104 -# define LI_CCTL_RESET 0x80000000 -# define LI_CCTL_SIZE 0x70000000 -# define LI_CCTL_DMA_ENABLE 0x08000000 -# define LI_CCTL_TMASK 0x07000000 /* trigger mask */ -# define LI_CCTL_TPTR 0x00FF0000 /* trigger pointer */ -# define LI_CCTL_RPTR 0x0000FF00 -# define LI_CCTL_WPTR 0x000000FF -#define LI_COMM1_CFG 0x108 -# define LI_CCFG_LOCK 0x00008000 -# define LI_CCFG_SLOT 0x00000070 -# define LI_CCFG_DIRECTION 0x00000008 -# define LI_CCFG_DIR_IN (!LI_CCFG_DIRECTION) -# define LI_CCFG_DIR_OUT LI_CCFG_DIRECTION -# define LI_CCFG_MODE 0x00000004 -# define LI_CCFG_MODE_MONO (!LI_CCFG_MODE) -# define LI_CCFG_MODE_STEREO LI_CCFG_MODE -# define LI_CCFG_FORMAT 0x00000003 -# define LI_CCFG_FMT_8BIT 0x00000000 -# define LI_CCFG_FMT_16BIT 0x00000001 -#define LI_COMM2_BASE 0x10C -#define LI_COMM2_CTL 0x110 - /* bit definitions are the same as LI_COMM1_CTL */ -#define LI_COMM2_CFG 0x114 - /* bit definitions are the same as LI_COMM1_CFG */ - -#define LI_UST_LOW 0x200 /* 64-bit Unadjusted System Time is */ -#define LI_UST_HIGH 0x204 /* microseconds since boot */ - -#define LI_AUDIO1_UST 0x300 /* UST-MSC pairs */ -#define LI_AUDIO1_MSC 0x304 /* MSC (Media Stream Counter) */ -#define LI_AUDIO2_UST 0x308 /* counts samples actually */ -#define LI_AUDIO2_MSC 0x30C /* processed as of time UST */ - -/* - * Lithium's DMA engine operates on chunks of 32 bytes. We call that - * a DMACHUNK. - */ - -#define DMACHUNK_SHIFT 5 -#define DMACHUNK_SIZE (1 << DMACHUNK_SHIFT) -#define BYTES_TO_CHUNKS(bytes) ((bytes) >> DMACHUNK_SHIFT) -#define CHUNKS_TO_BYTES(chunks) ((chunks) << DMACHUNK_SHIFT) - -/* - * Two convenient macros to shift bitfields into/out of position. - * - * Observe that (mask & -mask) is (1 << low_set_bit_of(mask)). - * As long as mask is constant, we trust the compiler will change the - * multipy and divide into shifts. - */ - -#define SHIFT_FIELD(val, mask) (((val) * ((mask) & -(mask))) & (mask)) -#define UNSHIFT_FIELD(val, mask) (((val) & (mask)) / ((mask) & -(mask))) - -/* - * dma_chan_desc is invariant information about a Lithium - * DMA channel. There are two instances, li_comm1 and li_comm2. - * - * Note that the CCTL register fields are write ptr and read ptr, but what - * we care about are which pointer is updated by software and which by - * hardware. - */ - -typedef struct dma_chan_desc { - int basereg; - int cfgreg; - int ctlreg; - int hwptrreg; - int swptrreg; - int ustreg; - int mscreg; - unsigned long swptrmask; - int ad1843_slot; - int direction; /* LI_CCTL_DIR_IN/OUT */ -} dma_chan_desc_t; - -static const dma_chan_desc_t li_comm1 = { - LI_COMM1_BASE, /* base register offset */ - LI_COMM1_CFG, /* config register offset */ - LI_COMM1_CTL, /* control register offset */ - LI_COMM1_CTL + 0, /* hw ptr reg offset (write ptr) */ - LI_COMM1_CTL + 1, /* sw ptr reg offset (read ptr) */ - LI_AUDIO1_UST, /* ust reg offset */ - LI_AUDIO1_MSC, /* msc reg offset */ - LI_CCTL_RPTR, /* sw ptr bitmask in ctlval */ - 2, /* ad1843 serial slot */ - LI_CCFG_DIR_IN /* direction */ -}; - -static const dma_chan_desc_t li_comm2 = { - LI_COMM2_BASE, /* base register offset */ - LI_COMM2_CFG, /* config register offset */ - LI_COMM2_CTL, /* control register offset */ - LI_COMM2_CTL + 1, /* hw ptr reg offset (read ptr) */ - LI_COMM2_CTL + 0, /* sw ptr reg offset (writr ptr) */ - LI_AUDIO2_UST, /* ust reg offset */ - LI_AUDIO2_MSC, /* msc reg offset */ - LI_CCTL_WPTR, /* sw ptr bitmask in ctlval */ - 2, /* ad1843 serial slot */ - LI_CCFG_DIR_OUT /* direction */ -}; - -/* - * dma_chan is variable information about a Lithium DMA channel. - * - * The desc field points to invariant information. - * The lith field points to a lithium_t which is passed - * to li_read* and li_write* to access the registers. - * The *val fields shadow the lithium registers' contents. - */ - -typedef struct dma_chan { - const dma_chan_desc_t *desc; - lithium_t *lith; - unsigned long baseval; - unsigned long cfgval; - unsigned long ctlval; -} dma_chan_t; - -/* - * ustmsc is a UST/MSC pair (Unadjusted System Time/Media Stream Counter). - * UST is time in microseconds since the system booted, and MSC is a - * counter that increments with every audio sample. - */ - -typedef struct ustmsc { - unsigned long long ust; - unsigned long msc; -} ustmsc_t; - -/* - * li_ad1843_wait waits until lithium says the AD1843 register - * exchange is not busy. Returns 0 on success, -EBUSY on timeout. - * - * Locking: must be called with lithium_lock held. - */ - -static int li_ad1843_wait(lithium_t *lith) -{ - unsigned long later = jiffies + 2; - while (li_readl(lith, LI_CODEC_COMMAND) & LI_CC_BUSY) - if (time_after_eq(jiffies, later)) - return -EBUSY; - return 0; -} - -/* - * li_read_ad1843_reg returns the current contents of a 16 bit AD1843 register. - * - * Returns unsigned register value on success, -errno on failure. - */ - -static int li_read_ad1843_reg(lithium_t *lith, int reg) -{ - int val; - - ASSERT(!in_interrupt()); - spin_lock(&lith->lock); - { - val = li_ad1843_wait(lith); - if (val == 0) { - li_writel(lith, LI_CODEC_COMMAND, LI_CC_DIR_RD | reg); - val = li_ad1843_wait(lith); - } - if (val == 0) - val = li_readl(lith, LI_CODEC_DATA); - } - spin_unlock(&lith->lock); - - DBGXV("li_read_ad1843_reg(lith=0x%p, reg=%d) returns 0x%04x\n", - lith, reg, val); - - return val; -} - -/* - * li_write_ad1843_reg writes the specified value to a 16 bit AD1843 register. - */ - -static void li_write_ad1843_reg(lithium_t *lith, int reg, int newval) -{ - spin_lock(&lith->lock); - { - if (li_ad1843_wait(lith) == 0) { - li_writel(lith, LI_CODEC_DATA, newval); - li_writel(lith, LI_CODEC_COMMAND, LI_CC_DIR_WR | reg); - } - } - spin_unlock(&lith->lock); -} - -/* - * li_setup_dma calculates all the register settings for DMA in a particular - * mode. It takes too many arguments. - */ - -static void li_setup_dma(dma_chan_t *chan, - const dma_chan_desc_t *desc, - lithium_t *lith, - unsigned long buffer_paddr, - int bufshift, - int fragshift, - int channels, - int sampsize) -{ - unsigned long mode, format; - unsigned long size, tmask; - - DBGEV("(chan=0x%p, desc=0x%p, lith=0x%p, buffer_paddr=0x%lx, " - "bufshift=%d, fragshift=%d, channels=%d, sampsize=%d)\n", - chan, desc, lith, buffer_paddr, - bufshift, fragshift, channels, sampsize); - - /* Reset the channel first. */ - - li_writel(lith, desc->ctlreg, LI_CCTL_RESET); - - ASSERT(channels == 1 || channels == 2); - if (channels == 2) - mode = LI_CCFG_MODE_STEREO; - else - mode = LI_CCFG_MODE_MONO; - ASSERT(sampsize == 1 || sampsize == 2); - if (sampsize == 2) - format = LI_CCFG_FMT_16BIT; - else - format = LI_CCFG_FMT_8BIT; - chan->desc = desc; - chan->lith = lith; - - /* - * Lithium DMA address register takes a 40-bit physical - * address, right-shifted by 8 so it fits in 32 bits. Bit 37 - * must be set -- it enables cache coherence. - */ - - ASSERT(!(buffer_paddr & 0xFF)); - chan->baseval = (buffer_paddr >> 8) | 1 << (37 - 8); - - chan->cfgval = ((chan->cfgval & ~LI_CCFG_LOCK) | - SHIFT_FIELD(desc->ad1843_slot, LI_CCFG_SLOT) | - desc->direction | - mode | - format); - - size = bufshift - 6; - tmask = 13 - fragshift; /* See Lithium DMA Notes above. */ - ASSERT(size >= 2 && size <= 7); - ASSERT(tmask >= 1 && tmask <= 7); - chan->ctlval = ((chan->ctlval & ~LI_CCTL_RESET) | - SHIFT_FIELD(size, LI_CCTL_SIZE) | - (chan->ctlval & ~LI_CCTL_DMA_ENABLE) | - SHIFT_FIELD(tmask, LI_CCTL_TMASK) | - SHIFT_FIELD(0, LI_CCTL_TPTR)); - - DBGPV("basereg 0x%x = 0x%lx\n", desc->basereg, chan->baseval); - DBGPV("cfgreg 0x%x = 0x%lx\n", desc->cfgreg, chan->cfgval); - DBGPV("ctlreg 0x%x = 0x%lx\n", desc->ctlreg, chan->ctlval); - - li_writel(lith, desc->basereg, chan->baseval); - li_writel(lith, desc->cfgreg, chan->cfgval); - li_writel(lith, desc->ctlreg, chan->ctlval); - - DBGRV(); -} - -static void li_shutdown_dma(dma_chan_t *chan) -{ - lithium_t *lith = chan->lith; - void * lith1 = lith->page1; - - DBGEV("(chan=0x%p)\n", chan); - - chan->ctlval &= ~LI_CCTL_DMA_ENABLE; - DBGPV("ctlreg 0x%x = 0x%lx\n", chan->desc->ctlreg, chan->ctlval); - li_writel(lith, chan->desc->ctlreg, chan->ctlval); - - /* - * Offset 0x500 on Lithium page 1 is an undocumented, - * unsupported register that holds the zero sample value. - * Lithium is supposed to output zero samples when DMA is - * inactive, and repeat the last sample when DMA underflows. - * But it has a bug, where, after underflow occurs, the zero - * sample is not reset. - * - * I expect this to break in a future rev of Lithium. - */ - - if (lith1 && chan->desc->direction == LI_CCFG_DIR_OUT) - * (volatile unsigned long *) (lith1 + 0x500) = 0; -} - -/* - * li_activate_dma always starts dma at the beginning of the buffer. - * - * N.B., these may be called from interrupt. - */ - -static __inline__ void li_activate_dma(dma_chan_t *chan) -{ - chan->ctlval |= LI_CCTL_DMA_ENABLE; - DBGPV("ctlval = 0x%lx\n", chan->ctlval); - li_writel(chan->lith, chan->desc->ctlreg, chan->ctlval); -} - -static void li_deactivate_dma(dma_chan_t *chan) -{ - lithium_t *lith = chan->lith; - void * lith2 = lith->page2; - - chan->ctlval &= ~(LI_CCTL_DMA_ENABLE | LI_CCTL_RPTR | LI_CCTL_WPTR); - DBGPV("ctlval = 0x%lx\n", chan->ctlval); - DBGPV("ctlreg 0x%x = 0x%lx\n", chan->desc->ctlreg, chan->ctlval); - li_writel(lith, chan->desc->ctlreg, chan->ctlval); - - /* - * Offsets 0x98 and 0x9C on Lithium page 2 are undocumented, - * unsupported registers that are internal copies of the DMA - * read and write pointers. Because of a Lithium bug, these - * registers aren't zeroed correctly when DMA is shut off. So - * we whack them directly. - * - * I expect this to break in a future rev of Lithium. - */ - - if (lith2 && chan->desc->direction == LI_CCFG_DIR_OUT) { - * (volatile unsigned long *) (lith2 + 0x98) = 0; - * (volatile unsigned long *) (lith2 + 0x9C) = 0; - } -} - -/* - * read/write the ring buffer pointers. These routines' arguments and results - * are byte offsets from the beginning of the ring buffer. - */ - -static __inline__ int li_read_swptr(dma_chan_t *chan) -{ - const unsigned long mask = chan->desc->swptrmask; - - return CHUNKS_TO_BYTES(UNSHIFT_FIELD(chan->ctlval, mask)); -} - -static __inline__ int li_read_hwptr(dma_chan_t *chan) -{ - return CHUNKS_TO_BYTES(li_readb(chan->lith, chan->desc->hwptrreg)); -} - -static __inline__ void li_write_swptr(dma_chan_t *chan, int val) -{ - const unsigned long mask = chan->desc->swptrmask; - - ASSERT(!(val & ~CHUNKS_TO_BYTES(0xFF))); - val = BYTES_TO_CHUNKS(val); - chan->ctlval = (chan->ctlval & ~mask) | SHIFT_FIELD(val, mask); - li_writeb(chan->lith, chan->desc->swptrreg, val); -} - -/* li_read_USTMSC() returns a UST/MSC pair for the given channel. */ - -static void li_read_USTMSC(dma_chan_t *chan, ustmsc_t *ustmsc) -{ - lithium_t *lith = chan->lith; - const dma_chan_desc_t *desc = chan->desc; - unsigned long now_low, now_high0, now_high1, chan_ust; - - spin_lock(&lith->lock); - { - /* - * retry until we do all five reads without the - * high word changing. (High word increments - * every 2^32 microseconds, i.e., not often) - */ - do { - now_high0 = li_readl(lith, LI_UST_HIGH); - now_low = li_readl(lith, LI_UST_LOW); - - /* - * Lithium guarantees these two reads will be - * atomic -- ust will not increment after msc - * is read. - */ - - ustmsc->msc = li_readl(lith, desc->mscreg); - chan_ust = li_readl(lith, desc->ustreg); - - now_high1 = li_readl(lith, LI_UST_HIGH); - } while (now_high0 != now_high1); - } - spin_unlock(&lith->lock); - ustmsc->ust = ((unsigned long long) now_high0 << 32 | chan_ust); -} - -static void li_enable_interrupts(lithium_t *lith, unsigned int mask) -{ - DBGEV("(lith=0x%p, mask=0x%x)\n", lith, mask); - - /* clear any already-pending interrupts. */ - - li_writel(lith, LI_INTR_STATUS, mask); - - /* enable the interrupts. */ - - mask |= li_readl(lith, LI_INTR_MASK); - li_writel(lith, LI_INTR_MASK, mask); -} - -static void li_disable_interrupts(lithium_t *lith, unsigned int mask) -{ - unsigned int keepmask; - - DBGEV("(lith=0x%p, mask=0x%x)\n", lith, mask); - - /* disable the interrupts */ - - keepmask = li_readl(lith, LI_INTR_MASK) & ~mask; - li_writel(lith, LI_INTR_MASK, keepmask); - - /* clear any pending interrupts. */ - - li_writel(lith, LI_INTR_STATUS, mask); -} - -/* Get the interrupt status and clear all pending interrupts. */ - -static unsigned int li_get_clear_intr_status(lithium_t *lith) -{ - unsigned int status; - - status = li_readl(lith, LI_INTR_STATUS); - li_writel(lith, LI_INTR_STATUS, ~0); - return status & li_readl(lith, LI_INTR_MASK); -} - -static int li_init(lithium_t *lith) -{ - /* 1. System power supplies stabilize. */ - - /* 2. Assert the ~RESET signal. */ - - li_writel(lith, LI_HOST_CONTROLLER, LI_HC_RESET); - udelay(1); - - /* 3. Deassert the ~RESET signal and enter a wait period to allow - the AD1843 internal clocks and the external crystal oscillator - to stabilize. */ - - li_writel(lith, LI_HOST_CONTROLLER, LI_HC_LINK_ENABLE); - udelay(1); - - return 0; -} - -/*****************************************************************************/ -/* AD1843 access */ - -/* - * AD1843 bitfield definitions. All are named as in the AD1843 data - * sheet, with ad1843_ prepended and individual bit numbers removed. - * - * E.g., bits LSS0 through LSS2 become ad1843_LSS. - * - * Only the bitfields we need are defined. - */ - -typedef struct ad1843_bitfield { - char reg; - char lo_bit; - char nbits; -} ad1843_bitfield_t; - -static const ad1843_bitfield_t - ad1843_PDNO = { 0, 14, 1 }, /* Converter Power-Down Flag */ - ad1843_INIT = { 0, 15, 1 }, /* Clock Initialization Flag */ - ad1843_RIG = { 2, 0, 4 }, /* Right ADC Input Gain */ - ad1843_RMGE = { 2, 4, 1 }, /* Right ADC Mic Gain Enable */ - ad1843_RSS = { 2, 5, 3 }, /* Right ADC Source Select */ - ad1843_LIG = { 2, 8, 4 }, /* Left ADC Input Gain */ - ad1843_LMGE = { 2, 12, 1 }, /* Left ADC Mic Gain Enable */ - ad1843_LSS = { 2, 13, 3 }, /* Left ADC Source Select */ - ad1843_RX1M = { 4, 0, 5 }, /* Right Aux 1 Mix Gain/Atten */ - ad1843_RX1MM = { 4, 7, 1 }, /* Right Aux 1 Mix Mute */ - ad1843_LX1M = { 4, 8, 5 }, /* Left Aux 1 Mix Gain/Atten */ - ad1843_LX1MM = { 4, 15, 1 }, /* Left Aux 1 Mix Mute */ - ad1843_RX2M = { 5, 0, 5 }, /* Right Aux 2 Mix Gain/Atten */ - ad1843_RX2MM = { 5, 7, 1 }, /* Right Aux 2 Mix Mute */ - ad1843_LX2M = { 5, 8, 5 }, /* Left Aux 2 Mix Gain/Atten */ - ad1843_LX2MM = { 5, 15, 1 }, /* Left Aux 2 Mix Mute */ - ad1843_RMCM = { 7, 0, 5 }, /* Right Mic Mix Gain/Atten */ - ad1843_RMCMM = { 7, 7, 1 }, /* Right Mic Mix Mute */ - ad1843_LMCM = { 7, 8, 5 }, /* Left Mic Mix Gain/Atten */ - ad1843_LMCMM = { 7, 15, 1 }, /* Left Mic Mix Mute */ - ad1843_HPOS = { 8, 4, 1 }, /* Headphone Output Voltage Swing */ - ad1843_HPOM = { 8, 5, 1 }, /* Headphone Output Mute */ - ad1843_RDA1G = { 9, 0, 6 }, /* Right DAC1 Analog/Digital Gain */ - ad1843_RDA1GM = { 9, 7, 1 }, /* Right DAC1 Analog Mute */ - ad1843_LDA1G = { 9, 8, 6 }, /* Left DAC1 Analog/Digital Gain */ - ad1843_LDA1GM = { 9, 15, 1 }, /* Left DAC1 Analog Mute */ - ad1843_RDA1AM = { 11, 7, 1 }, /* Right DAC1 Digital Mute */ - ad1843_LDA1AM = { 11, 15, 1 }, /* Left DAC1 Digital Mute */ - ad1843_ADLC = { 15, 0, 2 }, /* ADC Left Sample Rate Source */ - ad1843_ADRC = { 15, 2, 2 }, /* ADC Right Sample Rate Source */ - ad1843_DA1C = { 15, 8, 2 }, /* DAC1 Sample Rate Source */ - ad1843_C1C = { 17, 0, 16 }, /* Clock 1 Sample Rate Select */ - ad1843_C2C = { 20, 0, 16 }, /* Clock 1 Sample Rate Select */ - ad1843_DAADL = { 25, 4, 2 }, /* Digital ADC Left Source Select */ - ad1843_DAADR = { 25, 6, 2 }, /* Digital ADC Right Source Select */ - ad1843_DRSFLT = { 25, 15, 1 }, /* Digital Reampler Filter Mode */ - ad1843_ADLF = { 26, 0, 2 }, /* ADC Left Channel Data Format */ - ad1843_ADRF = { 26, 2, 2 }, /* ADC Right Channel Data Format */ - ad1843_ADTLK = { 26, 4, 1 }, /* ADC Transmit Lock Mode Select */ - ad1843_SCF = { 26, 7, 1 }, /* SCLK Frequency Select */ - ad1843_DA1F = { 26, 8, 2 }, /* DAC1 Data Format Select */ - ad1843_DA1SM = { 26, 14, 1 }, /* DAC1 Stereo/Mono Mode Select */ - ad1843_ADLEN = { 27, 0, 1 }, /* ADC Left Channel Enable */ - ad1843_ADREN = { 27, 1, 1 }, /* ADC Right Channel Enable */ - ad1843_AAMEN = { 27, 4, 1 }, /* Analog to Analog Mix Enable */ - ad1843_ANAEN = { 27, 7, 1 }, /* Analog Channel Enable */ - ad1843_DA1EN = { 27, 8, 1 }, /* DAC1 Enable */ - ad1843_DA2EN = { 27, 9, 1 }, /* DAC2 Enable */ - ad1843_C1EN = { 28, 11, 1 }, /* Clock Generator 1 Enable */ - ad1843_C2EN = { 28, 12, 1 }, /* Clock Generator 2 Enable */ - ad1843_PDNI = { 28, 15, 1 }; /* Converter Power Down */ - -/* - * The various registers of the AD1843 use three different formats for - * specifying gain. The ad1843_gain structure parameterizes the - * formats. - */ - -typedef struct ad1843_gain { - - int negative; /* nonzero if gain is negative. */ - const ad1843_bitfield_t *lfield; - const ad1843_bitfield_t *rfield; - -} ad1843_gain_t; - -static const ad1843_gain_t ad1843_gain_RECLEV - = { 0, &ad1843_LIG, &ad1843_RIG }; -static const ad1843_gain_t ad1843_gain_LINE - = { 1, &ad1843_LX1M, &ad1843_RX1M }; -static const ad1843_gain_t ad1843_gain_CD - = { 1, &ad1843_LX2M, &ad1843_RX2M }; -static const ad1843_gain_t ad1843_gain_MIC - = { 1, &ad1843_LMCM, &ad1843_RMCM }; -static const ad1843_gain_t ad1843_gain_PCM - = { 1, &ad1843_LDA1G, &ad1843_RDA1G }; - -/* read the current value of an AD1843 bitfield. */ - -static int ad1843_read_bits(lithium_t *lith, const ad1843_bitfield_t *field) -{ - int w = li_read_ad1843_reg(lith, field->reg); - int val = w >> field->lo_bit & ((1 << field->nbits) - 1); - - DBGXV("ad1843_read_bits(lith=0x%p, field->{%d %d %d}) returns 0x%x\n", - lith, field->reg, field->lo_bit, field->nbits, val); - - return val; -} - -/* - * write a new value to an AD1843 bitfield and return the old value. - */ - -static int ad1843_write_bits(lithium_t *lith, - const ad1843_bitfield_t *field, - int newval) -{ - int w = li_read_ad1843_reg(lith, field->reg); - int mask = ((1 << field->nbits) - 1) << field->lo_bit; - int oldval = (w & mask) >> field->lo_bit; - int newbits = (newval << field->lo_bit) & mask; - w = (w & ~mask) | newbits; - (void) li_write_ad1843_reg(lith, field->reg, w); - - DBGXV("ad1843_write_bits(lith=0x%p, field->{%d %d %d}, val=0x%x) " - "returns 0x%x\n", - lith, field->reg, field->lo_bit, field->nbits, newval, - oldval); - - return oldval; -} - -/* - * ad1843_read_multi reads multiple bitfields from the same AD1843 - * register. It uses a single read cycle to do it. (Reading the - * ad1843 requires 256 bit times at 12.288 MHz, or nearly 20 - * microseconds.) - * - * Called ike this. - * - * ad1843_read_multi(lith, nfields, - * &ad1843_FIELD1, &val1, - * &ad1843_FIELD2, &val2, ...); - */ - -static void ad1843_read_multi(lithium_t *lith, int argcount, ...) -{ - va_list ap; - const ad1843_bitfield_t *fp; - int w = 0, mask, *value, reg = -1; - - va_start(ap, argcount); - while (--argcount >= 0) { - fp = va_arg(ap, const ad1843_bitfield_t *); - value = va_arg(ap, int *); - if (reg == -1) { - reg = fp->reg; - w = li_read_ad1843_reg(lith, reg); - } - ASSERT(reg == fp->reg); - mask = (1 << fp->nbits) - 1; - *value = w >> fp->lo_bit & mask; - } - va_end(ap); -} - -/* - * ad1843_write_multi stores multiple bitfields into the same AD1843 - * register. It uses one read and one write cycle to do it. - * - * Called like this. - * - * ad1843_write_multi(lith, nfields, - * &ad1843_FIELD1, val1, - * &ad1843_FIELF2, val2, ...); - */ - -static void ad1843_write_multi(lithium_t *lith, int argcount, ...) -{ - va_list ap; - int reg; - const ad1843_bitfield_t *fp; - int value; - int w, m, mask, bits; - - mask = 0; - bits = 0; - reg = -1; - - va_start(ap, argcount); - while (--argcount >= 0) { - fp = va_arg(ap, const ad1843_bitfield_t *); - value = va_arg(ap, int); - if (reg == -1) - reg = fp->reg; - ASSERT(fp->reg == reg); - m = ((1 << fp->nbits) - 1) << fp->lo_bit; - mask |= m; - bits |= (value << fp->lo_bit) & m; - } - va_end(ap); - ASSERT(!(bits & ~mask)); - if (~mask & 0xFFFF) - w = li_read_ad1843_reg(lith, reg); - else - w = 0; - w = (w & ~mask) | bits; - (void) li_write_ad1843_reg(lith, reg, w); -} - -/* - * ad1843_get_gain reads the specified register and extracts the gain value - * using the supplied gain type. It returns the gain in OSS format. - */ - -static int ad1843_get_gain(lithium_t *lith, const ad1843_gain_t *gp) -{ - int lg, rg; - unsigned short mask = (1 << gp->lfield->nbits) - 1; - - ad1843_read_multi(lith, 2, gp->lfield, &lg, gp->rfield, &rg); - if (gp->negative) { - lg = mask - lg; - rg = mask - rg; - } - lg = (lg * 100 + (mask >> 1)) / mask; - rg = (rg * 100 + (mask >> 1)) / mask; - return lg << 0 | rg << 8; -} - -/* - * Set an audio channel's gain. Converts from OSS format to AD1843's - * format. - * - * Returns the new gain, which may be lower than the old gain. - */ - -static int ad1843_set_gain(lithium_t *lith, - const ad1843_gain_t *gp, - int newval) -{ - unsigned short mask = (1 << gp->lfield->nbits) - 1; - - int lg = newval >> 0 & 0xFF; - int rg = newval >> 8; - if (lg < 0 || lg > 100 || rg < 0 || rg > 100) - return -EINVAL; - lg = (lg * mask + (mask >> 1)) / 100; - rg = (rg * mask + (mask >> 1)) / 100; - if (gp->negative) { - lg = mask - lg; - rg = mask - rg; - } - ad1843_write_multi(lith, 2, gp->lfield, lg, gp->rfield, rg); - return ad1843_get_gain(lith, gp); -} - -/* Returns the current recording source, in OSS format. */ - -static int ad1843_get_recsrc(lithium_t *lith) -{ - int ls = ad1843_read_bits(lith, &ad1843_LSS); - - switch (ls) { - case 1: - return SOUND_MASK_MIC; - case 2: - return SOUND_MASK_LINE; - case 3: - return SOUND_MASK_CD; - case 6: - return SOUND_MASK_PCM; - default: - ASSERT(0); - return -1; - } -} - -/* - * Enable/disable digital resample mode in the AD1843. - * - * The AD1843 requires that ADL, ADR, DA1 and DA2 be powered down - * while switching modes. So we save DA1's state (DA2's state is not - * interesting), power them down, switch into/out of resample mode, - * power them up, and restore state. - * - * This will cause audible glitches if D/A or A/D is going on, so the - * driver disallows that (in mixer_write_ioctl()). - * - * The open question is, is this worth doing? I'm leaving it in, - * because it's written, but... - */ - -static void ad1843_set_resample_mode(lithium_t *lith, int onoff) -{ - /* Save DA1 mute and gain (addr 9 is DA1 analog gain/attenuation) */ - int save_da1 = li_read_ad1843_reg(lith, 9); - - /* Power down A/D and D/A. */ - ad1843_write_multi(lith, 4, - &ad1843_DA1EN, 0, - &ad1843_DA2EN, 0, - &ad1843_ADLEN, 0, - &ad1843_ADREN, 0); - - /* Switch mode */ - ASSERT(onoff == 0 || onoff == 1); - ad1843_write_bits(lith, &ad1843_DRSFLT, onoff); - - /* Power up A/D and D/A. */ - ad1843_write_multi(lith, 3, - &ad1843_DA1EN, 1, - &ad1843_ADLEN, 1, - &ad1843_ADREN, 1); - - /* Restore DA1 mute and gain. */ - li_write_ad1843_reg(lith, 9, save_da1); -} - -/* - * Set recording source. Arg newsrc specifies an OSS channel mask. - * - * The complication is that when we switch into/out of loopback mode - * (i.e., src = SOUND_MASK_PCM), we change the AD1843 into/out of - * digital resampling mode. - * - * Returns newsrc on success, -errno on failure. - */ - -static int ad1843_set_recsrc(lithium_t *lith, int newsrc) -{ - int bits; - int oldbits; - - switch (newsrc) { - case SOUND_MASK_PCM: - bits = 6; - break; - - case SOUND_MASK_MIC: - bits = 1; - break; - - case SOUND_MASK_LINE: - bits = 2; - break; - - case SOUND_MASK_CD: - bits = 3; - break; - - default: - return -EINVAL; - } - oldbits = ad1843_read_bits(lith, &ad1843_LSS); - if (newsrc == SOUND_MASK_PCM && oldbits != 6) { - DBGP("enabling digital resample mode\n"); - ad1843_set_resample_mode(lith, 1); - ad1843_write_multi(lith, 2, - &ad1843_DAADL, 2, - &ad1843_DAADR, 2); - } else if (newsrc != SOUND_MASK_PCM && oldbits == 6) { - DBGP("disabling digital resample mode\n"); - ad1843_set_resample_mode(lith, 0); - ad1843_write_multi(lith, 2, - &ad1843_DAADL, 0, - &ad1843_DAADR, 0); - } - ad1843_write_multi(lith, 2, &ad1843_LSS, bits, &ad1843_RSS, bits); - return newsrc; -} - -/* - * Return current output sources, in OSS format. - */ - -static int ad1843_get_outsrc(lithium_t *lith) -{ - int pcm, line, mic, cd; - - pcm = ad1843_read_bits(lith, &ad1843_LDA1GM) ? 0 : SOUND_MASK_PCM; - line = ad1843_read_bits(lith, &ad1843_LX1MM) ? 0 : SOUND_MASK_LINE; - cd = ad1843_read_bits(lith, &ad1843_LX2MM) ? 0 : SOUND_MASK_CD; - mic = ad1843_read_bits(lith, &ad1843_LMCMM) ? 0 : SOUND_MASK_MIC; - - return pcm | line | cd | mic; -} - -/* - * Set output sources. Arg is a mask of active sources in OSS format. - * - * Returns source mask on success, -errno on failure. - */ - -static int ad1843_set_outsrc(lithium_t *lith, int mask) -{ - int pcm, line, mic, cd; - - if (mask & ~(SOUND_MASK_PCM | SOUND_MASK_LINE | - SOUND_MASK_CD | SOUND_MASK_MIC)) - return -EINVAL; - pcm = (mask & SOUND_MASK_PCM) ? 0 : 1; - line = (mask & SOUND_MASK_LINE) ? 0 : 1; - mic = (mask & SOUND_MASK_MIC) ? 0 : 1; - cd = (mask & SOUND_MASK_CD) ? 0 : 1; - - ad1843_write_multi(lith, 2, &ad1843_LDA1GM, pcm, &ad1843_RDA1GM, pcm); - ad1843_write_multi(lith, 2, &ad1843_LX1MM, line, &ad1843_RX1MM, line); - ad1843_write_multi(lith, 2, &ad1843_LX2MM, cd, &ad1843_RX2MM, cd); - ad1843_write_multi(lith, 2, &ad1843_LMCMM, mic, &ad1843_RMCMM, mic); - - return mask; -} - -/* Setup ad1843 for D/A conversion. */ - -static void ad1843_setup_dac(lithium_t *lith, - int framerate, - int fmt, - int channels) -{ - int ad_fmt = 0, ad_mode = 0; - - DBGEV("(lith=0x%p, framerate=%d, fmt=%d, channels=%d)\n", - lith, framerate, fmt, channels); - - switch (fmt) { - case AFMT_S8: ad_fmt = 1; break; - case AFMT_U8: ad_fmt = 1; break; - case AFMT_S16_LE: ad_fmt = 1; break; - case AFMT_MU_LAW: ad_fmt = 2; break; - case AFMT_A_LAW: ad_fmt = 3; break; - default: ASSERT(0); - } - - switch (channels) { - case 2: ad_mode = 0; break; - case 1: ad_mode = 1; break; - default: ASSERT(0); - } - - DBGPV("ad_mode = %d, ad_fmt = %d\n", ad_mode, ad_fmt); - ASSERT(framerate >= 4000 && framerate <= 49000); - ad1843_write_bits(lith, &ad1843_C1C, framerate); - ad1843_write_multi(lith, 2, - &ad1843_DA1SM, ad_mode, &ad1843_DA1F, ad_fmt); -} - -static void ad1843_shutdown_dac(lithium_t *lith) -{ - ad1843_write_bits(lith, &ad1843_DA1F, 1); -} - -static void ad1843_setup_adc(lithium_t *lith, int framerate, int fmt, int channels) -{ - int da_fmt = 0; - - DBGEV("(lith=0x%p, framerate=%d, fmt=%d, channels=%d)\n", - lith, framerate, fmt, channels); - - switch (fmt) { - case AFMT_S8: da_fmt = 1; break; - case AFMT_U8: da_fmt = 1; break; - case AFMT_S16_LE: da_fmt = 1; break; - case AFMT_MU_LAW: da_fmt = 2; break; - case AFMT_A_LAW: da_fmt = 3; break; - default: ASSERT(0); - } - - DBGPV("da_fmt = %d\n", da_fmt); - ASSERT(framerate >= 4000 && framerate <= 49000); - ad1843_write_bits(lith, &ad1843_C2C, framerate); - ad1843_write_multi(lith, 2, - &ad1843_ADLF, da_fmt, &ad1843_ADRF, da_fmt); -} - -static void ad1843_shutdown_adc(lithium_t *lith) -{ - /* nothing to do */ -} - -/* - * Fully initialize the ad1843. As described in the AD1843 data - * sheet, section "START-UP SEQUENCE". The numbered comments are - * subsection headings from the data sheet. See the data sheet, pages - * 52-54, for more info. - * - * return 0 on success, -errno on failure. */ - -static int __init ad1843_init(lithium_t *lith) -{ - unsigned long later; - int err; - - err = li_init(lith); - if (err) - return err; - - if (ad1843_read_bits(lith, &ad1843_INIT) != 0) { - printk(KERN_ERR "vwsnd sound: AD1843 won't initialize\n"); - return -EIO; - } - - ad1843_write_bits(lith, &ad1843_SCF, 1); - - /* 4. Put the conversion resources into standby. */ - - ad1843_write_bits(lith, &ad1843_PDNI, 0); - later = jiffies + HZ / 2; /* roughly half a second */ - DBGDO(shut_up++); - while (ad1843_read_bits(lith, &ad1843_PDNO)) { - if (time_after(jiffies, later)) { - printk(KERN_ERR - "vwsnd audio: AD1843 won't power up\n"); - return -EIO; - } - schedule(); - } - DBGDO(shut_up--); - - /* 5. Power up the clock generators and enable clock output pins. */ - - ad1843_write_multi(lith, 2, &ad1843_C1EN, 1, &ad1843_C2EN, 1); - - /* 6. Configure conversion resources while they are in standby. */ - - /* DAC1 uses clock 1 as source, ADC uses clock 2. Always. */ - - ad1843_write_multi(lith, 3, - &ad1843_DA1C, 1, - &ad1843_ADLC, 2, - &ad1843_ADRC, 2); - - /* 7. Enable conversion resources. */ - - ad1843_write_bits(lith, &ad1843_ADTLK, 1); - ad1843_write_multi(lith, 5, - &ad1843_ANAEN, 1, - &ad1843_AAMEN, 1, - &ad1843_DA1EN, 1, - &ad1843_ADLEN, 1, - &ad1843_ADREN, 1); - - /* 8. Configure conversion resources while they are enabled. */ - - ad1843_write_bits(lith, &ad1843_DA1C, 1); - - /* Unmute all channels. */ - - ad1843_set_outsrc(lith, - (SOUND_MASK_PCM | SOUND_MASK_LINE | - SOUND_MASK_MIC | SOUND_MASK_CD)); - ad1843_write_multi(lith, 2, &ad1843_LDA1AM, 0, &ad1843_RDA1AM, 0); - - /* Set default recording source to Line In and set - * mic gain to +20 dB. - */ - - ad1843_set_recsrc(lith, SOUND_MASK_LINE); - ad1843_write_multi(lith, 2, &ad1843_LMGE, 1, &ad1843_RMGE, 1); - - /* Set Speaker Out level to +/- 4V and unmute it. */ - - ad1843_write_multi(lith, 2, &ad1843_HPOS, 1, &ad1843_HPOM, 0); - - return 0; -} - -/*****************************************************************************/ -/* PCM I/O */ - -#define READ_INTR_MASK (LI_INTR_COMM1_TRIG | LI_INTR_COMM1_OVERFLOW) -#define WRITE_INTR_MASK (LI_INTR_COMM2_TRIG | LI_INTR_COMM2_UNDERFLOW) - -typedef enum vwsnd_port_swstate { /* software state */ - SW_OFF, - SW_INITIAL, - SW_RUN, - SW_DRAIN, -} vwsnd_port_swstate_t; - -typedef enum vwsnd_port_hwstate { /* hardware state */ - HW_STOPPED, - HW_RUNNING, -} vwsnd_port_hwstate_t; - -/* - * These flags are read by ISR, but only written at baseline. - */ - -typedef enum vwsnd_port_flags { - DISABLED = 1 << 0, - ERFLOWN = 1 << 1, /* overflown or underflown */ - HW_BUSY = 1 << 2, -} vwsnd_port_flags_t; - -/* - * vwsnd_port is the per-port data structure. Each device has two - * ports, one for input and one for output. - * - * Locking: - * - * port->lock protects: hwstate, flags, swb_[iu]_avail. - * - * devc->io_mutex protects: swstate, sw_*, swb_[iu]_idx. - * - * everything else is only written by open/release or - * pcm_{setup,shutdown}(), which are serialized by a - * combination of devc->open_mutex and devc->io_mutex. - */ - -typedef struct vwsnd_port { - - spinlock_t lock; - wait_queue_head_t queue; - vwsnd_port_swstate_t swstate; - vwsnd_port_hwstate_t hwstate; - vwsnd_port_flags_t flags; - - int sw_channels; - int sw_samplefmt; - int sw_framerate; - int sample_size; - int frame_size; - unsigned int zero_word; /* zero for the sample format */ - - int sw_fragshift; - int sw_fragcount; - int sw_subdivshift; - - unsigned int hw_fragshift; - unsigned int hw_fragsize; - unsigned int hw_fragcount; - - int hwbuf_size; - unsigned long hwbuf_paddr; - unsigned long hwbuf_vaddr; - void * hwbuf; /* hwbuf == hwbuf_vaddr */ - int hwbuf_max; /* max bytes to preload */ - - void * swbuf; - unsigned int swbuf_size; /* size in bytes */ - unsigned int swb_u_idx; /* index of next user byte */ - unsigned int swb_i_idx; /* index of next intr byte */ - unsigned int swb_u_avail; /* # bytes avail to user */ - unsigned int swb_i_avail; /* # bytes avail to intr */ - - dma_chan_t chan; - - /* Accounting */ - - int byte_count; - int frag_count; - int MSC_offset; - -} vwsnd_port_t; - -/* vwsnd_dev is the per-device data structure. */ - -typedef struct vwsnd_dev { - struct vwsnd_dev *next_dev; - int audio_minor; /* minor number of audio device */ - int mixer_minor; /* minor number of mixer device */ - - struct mutex open_mutex; - struct mutex io_mutex; - struct mutex mix_mutex; - fmode_t open_mode; - wait_queue_head_t open_wait; - - lithium_t lith; - - vwsnd_port_t rport; - vwsnd_port_t wport; -} vwsnd_dev_t; - -static vwsnd_dev_t *vwsnd_dev_list; /* linked list of all devices */ - -static atomic_t vwsnd_use_count = ATOMIC_INIT(0); - -# define INC_USE_COUNT (atomic_inc(&vwsnd_use_count)) -# define DEC_USE_COUNT (atomic_dec(&vwsnd_use_count)) -# define IN_USE (atomic_read(&vwsnd_use_count) != 0) - -/* - * Lithium can only DMA multiples of 32 bytes. Its DMA buffer may - * be up to 8 Kb. This driver always uses 8 Kb. - * - * Memory bug workaround -- I'm not sure what's going on here, but - * somehow pcm_copy_out() was triggering segv's going on to the next - * page of the hw buffer. So, I make the hw buffer one size bigger - * than we actually use. That way, the following page is allocated - * and mapped, and no error. I suspect that something is broken - * in Cobalt, but haven't really investigated. HBO is the actual - * size of the buffer, and HWBUF_ORDER is what we allocate. - */ - -#define HWBUF_SHIFT 13 -#define HWBUF_SIZE (1 << HWBUF_SHIFT) -# define HBO (HWBUF_SHIFT > PAGE_SHIFT ? HWBUF_SHIFT - PAGE_SHIFT : 0) -# define HWBUF_ORDER (HBO + 1) /* next size bigger */ -#define MIN_SPEED 4000 -#define MAX_SPEED 49000 - -#define MIN_FRAGSHIFT (DMACHUNK_SHIFT + 1) -#define MAX_FRAGSHIFT (PAGE_SHIFT) -#define MIN_FRAGSIZE (1 << MIN_FRAGSHIFT) -#define MAX_FRAGSIZE (1 << MAX_FRAGSHIFT) -#define MIN_FRAGCOUNT(fragsize) 3 -#define MAX_FRAGCOUNT(fragsize) (32 * PAGE_SIZE / (fragsize)) -#define DEFAULT_FRAGSHIFT 12 -#define DEFAULT_FRAGCOUNT 16 -#define DEFAULT_SUBDIVSHIFT 0 - -/* - * The software buffer (swbuf) is a ring buffer shared between user - * level and interrupt level. Each level owns some of the bytes in - * the buffer, and may give bytes away by calling swb_inc_{u,i}(). - * User level calls _u for user, and interrupt level calls _i for - * interrupt. - * - * port->swb_{u,i}_avail is the number of bytes available to that level. - * - * port->swb_{u,i}_idx is the index of the first available byte in the - * buffer. - * - * Each level calls swb_inc_{u,i}() to atomically increment its index, - * recalculate the number of bytes available for both sides, and - * return the number of bytes available. Since each side can only - * give away bytes, the other side can only increase the number of - * bytes available to this side. Each side updates its own index - * variable, swb_{u,i}_idx, so no lock is needed to read it. - * - * To query the number of bytes available, call swb_inc_{u,i} with an - * increment of zero. - */ - -static __inline__ unsigned int __swb_inc_u(vwsnd_port_t *port, int inc) -{ - if (inc) { - port->swb_u_idx += inc; - port->swb_u_idx %= port->swbuf_size; - port->swb_u_avail -= inc; - port->swb_i_avail += inc; - } - return port->swb_u_avail; -} - -static __inline__ unsigned int swb_inc_u(vwsnd_port_t *port, int inc) -{ - unsigned long flags; - unsigned int ret; - - spin_lock_irqsave(&port->lock, flags); - { - ret = __swb_inc_u(port, inc); - } - spin_unlock_irqrestore(&port->lock, flags); - return ret; -} - -static __inline__ unsigned int __swb_inc_i(vwsnd_port_t *port, int inc) -{ - if (inc) { - port->swb_i_idx += inc; - port->swb_i_idx %= port->swbuf_size; - port->swb_i_avail -= inc; - port->swb_u_avail += inc; - } - return port->swb_i_avail; -} - -static __inline__ unsigned int swb_inc_i(vwsnd_port_t *port, int inc) -{ - unsigned long flags; - unsigned int ret; - - spin_lock_irqsave(&port->lock, flags); - { - ret = __swb_inc_i(port, inc); - } - spin_unlock_irqrestore(&port->lock, flags); - return ret; -} - -/* - * pcm_setup - this routine initializes all port state after - * mode-setting ioctls have been done, but before the first I/O is - * done. - * - * Locking: called with devc->io_mutex held. - * - * Returns 0 on success, -errno on failure. - */ - -static int pcm_setup(vwsnd_dev_t *devc, - vwsnd_port_t *rport, - vwsnd_port_t *wport) -{ - vwsnd_port_t *aport = rport ? rport : wport; - int sample_size; - unsigned int zero_word; - - DBGEV("(devc=0x%p, rport=0x%p, wport=0x%p)\n", devc, rport, wport); - - ASSERT(aport != NULL); - if (aport->swbuf != NULL) - return 0; - switch (aport->sw_samplefmt) { - case AFMT_MU_LAW: - sample_size = 1; - zero_word = 0xFFFFFFFF ^ 0x80808080; - break; - - case AFMT_A_LAW: - sample_size = 1; - zero_word = 0xD5D5D5D5 ^ 0x80808080; - break; - - case AFMT_U8: - sample_size = 1; - zero_word = 0x80808080; - break; - - case AFMT_S8: - sample_size = 1; - zero_word = 0x00000000; - break; - - case AFMT_S16_LE: - sample_size = 2; - zero_word = 0x00000000; - break; - - default: - sample_size = 0; /* prevent compiler warning */ - zero_word = 0; - ASSERT(0); - } - aport->sample_size = sample_size; - aport->zero_word = zero_word; - aport->frame_size = aport->sw_channels * aport->sample_size; - aport->hw_fragshift = aport->sw_fragshift - aport->sw_subdivshift; - aport->hw_fragsize = 1 << aport->hw_fragshift; - aport->hw_fragcount = aport->sw_fragcount << aport->sw_subdivshift; - ASSERT(aport->hw_fragsize >= MIN_FRAGSIZE); - ASSERT(aport->hw_fragsize <= MAX_FRAGSIZE); - ASSERT(aport->hw_fragcount >= MIN_FRAGCOUNT(aport->hw_fragsize)); - ASSERT(aport->hw_fragcount <= MAX_FRAGCOUNT(aport->hw_fragsize)); - if (rport) { - int hwfrags, swfrags; - rport->hwbuf_max = aport->hwbuf_size - DMACHUNK_SIZE; - hwfrags = rport->hwbuf_max >> aport->hw_fragshift; - swfrags = aport->hw_fragcount - hwfrags; - if (swfrags < 2) - swfrags = 2; - rport->swbuf_size = swfrags * aport->hw_fragsize; - DBGPV("hwfrags = %d, swfrags = %d\n", hwfrags, swfrags); - DBGPV("read hwbuf_max = %d, swbuf_size = %d\n", - rport->hwbuf_max, rport->swbuf_size); - } - if (wport) { - int hwfrags, swfrags; - int total_bytes = aport->hw_fragcount * aport->hw_fragsize; - wport->hwbuf_max = aport->hwbuf_size - DMACHUNK_SIZE; - if (wport->hwbuf_max > total_bytes) - wport->hwbuf_max = total_bytes; - hwfrags = wport->hwbuf_max >> aport->hw_fragshift; - DBGPV("hwfrags = %d\n", hwfrags); - swfrags = aport->hw_fragcount - hwfrags; - if (swfrags < 2) - swfrags = 2; - wport->swbuf_size = swfrags * aport->hw_fragsize; - DBGPV("hwfrags = %d, swfrags = %d\n", hwfrags, swfrags); - DBGPV("write hwbuf_max = %d, swbuf_size = %d\n", - wport->hwbuf_max, wport->swbuf_size); - } - - aport->swb_u_idx = 0; - aport->swb_i_idx = 0; - aport->byte_count = 0; - - /* - * Is this a Cobalt bug? We need to make this buffer extend - * one page further than we actually use -- somehow memcpy - * causes an exceptoin otherwise. I suspect there's a bug in - * Cobalt (or somewhere) where it's generating a fault on a - * speculative load or something. Obviously, I haven't taken - * the time to track it down. - */ - - aport->swbuf = vmalloc(aport->swbuf_size + PAGE_SIZE); - if (!aport->swbuf) - return -ENOMEM; - if (rport && wport) { - ASSERT(aport == rport); - ASSERT(wport->swbuf == NULL); - /* One extra page - see comment above. */ - wport->swbuf = vmalloc(aport->swbuf_size + PAGE_SIZE); - if (!wport->swbuf) { - vfree(aport->swbuf); - aport->swbuf = NULL; - return -ENOMEM; - } - wport->sample_size = rport->sample_size; - wport->zero_word = rport->zero_word; - wport->frame_size = rport->frame_size; - wport->hw_fragshift = rport->hw_fragshift; - wport->hw_fragsize = rport->hw_fragsize; - wport->hw_fragcount = rport->hw_fragcount; - wport->swbuf_size = rport->swbuf_size; - wport->hwbuf_max = rport->hwbuf_max; - wport->swb_u_idx = rport->swb_u_idx; - wport->swb_i_idx = rport->swb_i_idx; - wport->byte_count = rport->byte_count; - } - if (rport) { - rport->swb_u_avail = 0; - rport->swb_i_avail = rport->swbuf_size; - rport->swstate = SW_RUN; - li_setup_dma(&rport->chan, - &li_comm1, - &devc->lith, - rport->hwbuf_paddr, - HWBUF_SHIFT, - rport->hw_fragshift, - rport->sw_channels, - rport->sample_size); - ad1843_setup_adc(&devc->lith, - rport->sw_framerate, - rport->sw_samplefmt, - rport->sw_channels); - li_enable_interrupts(&devc->lith, READ_INTR_MASK); - if (!(rport->flags & DISABLED)) { - ustmsc_t ustmsc; - rport->hwstate = HW_RUNNING; - li_activate_dma(&rport->chan); - li_read_USTMSC(&rport->chan, &ustmsc); - rport->MSC_offset = ustmsc.msc; - } - } - if (wport) { - if (wport->hwbuf_max > wport->swbuf_size) - wport->hwbuf_max = wport->swbuf_size; - wport->flags &= ~ERFLOWN; - wport->swb_u_avail = wport->swbuf_size; - wport->swb_i_avail = 0; - wport->swstate = SW_RUN; - li_setup_dma(&wport->chan, - &li_comm2, - &devc->lith, - wport->hwbuf_paddr, - HWBUF_SHIFT, - wport->hw_fragshift, - wport->sw_channels, - wport->sample_size); - ad1843_setup_dac(&devc->lith, - wport->sw_framerate, - wport->sw_samplefmt, - wport->sw_channels); - li_enable_interrupts(&devc->lith, WRITE_INTR_MASK); - } - DBGRV(); - return 0; -} - -/* - * pcm_shutdown_port - shut down one port (direction) for PCM I/O. - * Only called from pcm_shutdown. - */ - -static void pcm_shutdown_port(vwsnd_dev_t *devc, - vwsnd_port_t *aport, - unsigned int mask) -{ - unsigned long flags; - vwsnd_port_hwstate_t hwstate; - DECLARE_WAITQUEUE(wait, current); - - aport->swstate = SW_INITIAL; - add_wait_queue(&aport->queue, &wait); - while (1) { - set_current_state(TASK_UNINTERRUPTIBLE); - spin_lock_irqsave(&aport->lock, flags); - { - hwstate = aport->hwstate; - } - spin_unlock_irqrestore(&aport->lock, flags); - if (hwstate == HW_STOPPED) - break; - schedule(); - } - current->state = TASK_RUNNING; - remove_wait_queue(&aport->queue, &wait); - li_disable_interrupts(&devc->lith, mask); - if (aport == &devc->rport) - ad1843_shutdown_adc(&devc->lith); - else /* aport == &devc->wport) */ - ad1843_shutdown_dac(&devc->lith); - li_shutdown_dma(&aport->chan); - vfree(aport->swbuf); - aport->swbuf = NULL; - aport->byte_count = 0; -} - -/* - * pcm_shutdown undoes what pcm_setup did. - * Also sets the ports' swstate to newstate. - */ - -static void pcm_shutdown(vwsnd_dev_t *devc, - vwsnd_port_t *rport, - vwsnd_port_t *wport) -{ - DBGEV("(devc=0x%p, rport=0x%p, wport=0x%p)\n", devc, rport, wport); - - if (rport && rport->swbuf) { - DBGPV("shutting down rport\n"); - pcm_shutdown_port(devc, rport, READ_INTR_MASK); - } - if (wport && wport->swbuf) { - DBGPV("shutting down wport\n"); - pcm_shutdown_port(devc, wport, WRITE_INTR_MASK); - } - DBGRV(); -} - -static void pcm_copy_in(vwsnd_port_t *rport, int swidx, int hwidx, int nb) -{ - char *src = rport->hwbuf + hwidx; - char *dst = rport->swbuf + swidx; - int fmt = rport->sw_samplefmt; - - DBGPV("swidx = %d, hwidx = %d\n", swidx, hwidx); - ASSERT(rport->hwbuf != NULL); - ASSERT(rport->swbuf != NULL); - ASSERT(nb > 0 && (nb % 32) == 0); - ASSERT(swidx % 32 == 0 && hwidx % 32 == 0); - ASSERT(swidx >= 0 && swidx + nb <= rport->swbuf_size); - ASSERT(hwidx >= 0 && hwidx + nb <= rport->hwbuf_size); - - if (fmt == AFMT_MU_LAW || fmt == AFMT_A_LAW || fmt == AFMT_S8) { - - /* See Sample Format Notes above. */ - - char *end = src + nb; - while (src < end) - *dst++ = *src++ ^ 0x80; - } else - memcpy(dst, src, nb); -} - -static void pcm_copy_out(vwsnd_port_t *wport, int swidx, int hwidx, int nb) -{ - char *src = wport->swbuf + swidx; - char *dst = wport->hwbuf + hwidx; - int fmt = wport->sw_samplefmt; - - ASSERT(nb > 0 && (nb % 32) == 0); - ASSERT(wport->hwbuf != NULL); - ASSERT(wport->swbuf != NULL); - ASSERT(swidx % 32 == 0 && hwidx % 32 == 0); - ASSERT(swidx >= 0 && swidx + nb <= wport->swbuf_size); - ASSERT(hwidx >= 0 && hwidx + nb <= wport->hwbuf_size); - if (fmt == AFMT_MU_LAW || fmt == AFMT_A_LAW || fmt == AFMT_S8) { - - /* See Sample Format Notes above. */ - - char *end = src + nb; - while (src < end) - *dst++ = *src++ ^ 0x80; - } else - memcpy(dst, src, nb); -} - -/* - * pcm_output() is called both from baselevel and from interrupt level. - * This is where audio frames are copied into the hardware-accessible - * ring buffer. - * - * Locking note: The part of this routine that figures out what to do - * holds wport->lock. The longer part releases wport->lock, but sets - * wport->flags & HW_BUSY. Afterward, it reacquires wport->lock, and - * checks for more work to do. - * - * If another thread calls pcm_output() while HW_BUSY is set, it - * returns immediately, knowing that the thread that set HW_BUSY will - * look for more work to do before returning. - * - * This has the advantage that port->lock is held for several short - * periods instead of one long period. Also, when pcm_output is - * called from base level, it reenables interrupts. - */ - -static void pcm_output(vwsnd_dev_t *devc, int erflown, int nb) -{ - vwsnd_port_t *wport = &devc->wport; - const int hwmax = wport->hwbuf_max; - const int hwsize = wport->hwbuf_size; - const int swsize = wport->swbuf_size; - const int fragsize = wport->hw_fragsize; - unsigned long iflags; - - DBGEV("(devc=0x%p, erflown=%d, nb=%d)\n", devc, erflown, nb); - spin_lock_irqsave(&wport->lock, iflags); - if (erflown) - wport->flags |= ERFLOWN; - (void) __swb_inc_u(wport, nb); - if (wport->flags & HW_BUSY) { - spin_unlock_irqrestore(&wport->lock, iflags); - DBGPV("returning: HW BUSY\n"); - return; - } - if (wport->flags & DISABLED) { - spin_unlock_irqrestore(&wport->lock, iflags); - DBGPV("returning: DISABLED\n"); - return; - } - wport->flags |= HW_BUSY; - while (1) { - int swptr, hwptr, hw_avail, sw_avail, swidx; - vwsnd_port_hwstate_t hwstate = wport->hwstate; - vwsnd_port_swstate_t swstate = wport->swstate; - int hw_unavail; - ustmsc_t ustmsc; - - hwptr = li_read_hwptr(&wport->chan); - swptr = li_read_swptr(&wport->chan); - hw_unavail = (swptr - hwptr + hwsize) % hwsize; - hw_avail = (hwmax - hw_unavail) & -fragsize; - sw_avail = wport->swb_i_avail & -fragsize; - if (sw_avail && swstate == SW_RUN) { - if (wport->flags & ERFLOWN) { - wport->flags &= ~ERFLOWN; - } - } else if (swstate == SW_INITIAL || - swstate == SW_OFF || - (swstate == SW_DRAIN && - !sw_avail && - (wport->flags & ERFLOWN))) { - DBGP("stopping. hwstate = %d\n", hwstate); - if (hwstate != HW_STOPPED) { - li_deactivate_dma(&wport->chan); - wport->hwstate = HW_STOPPED; - } - wake_up(&wport->queue); - break; - } - if (!sw_avail || !hw_avail) - break; - spin_unlock_irqrestore(&wport->lock, iflags); - - /* - * We gave up the port lock, but we have the HW_BUSY flag. - * Proceed without accessing any nonlocal state. - * Do not exit the loop -- must check for more work. - */ - - swidx = wport->swb_i_idx; - nb = hw_avail; - if (nb > sw_avail) - nb = sw_avail; - if (nb > hwsize - swptr) - nb = hwsize - swptr; /* don't overflow hwbuf */ - if (nb > swsize - swidx) - nb = swsize - swidx; /* don't overflow swbuf */ - ASSERT(nb > 0); - if (nb % fragsize) { - DBGP("nb = %d, fragsize = %d\n", nb, fragsize); - DBGP("hw_avail = %d\n", hw_avail); - DBGP("sw_avail = %d\n", sw_avail); - DBGP("hwsize = %d, swptr = %d\n", hwsize, swptr); - DBGP("swsize = %d, swidx = %d\n", swsize, swidx); - } - ASSERT(!(nb % fragsize)); - DBGPV("copying swb[%d..%d] to hwb[%d..%d]\n", - swidx, swidx + nb, swptr, swptr + nb); - pcm_copy_out(wport, swidx, swptr, nb); - li_write_swptr(&wport->chan, (swptr + nb) % hwsize); - spin_lock_irqsave(&wport->lock, iflags); - if (hwstate == HW_STOPPED) { - DBGPV("starting\n"); - li_activate_dma(&wport->chan); - wport->hwstate = HW_RUNNING; - li_read_USTMSC(&wport->chan, &ustmsc); - ASSERT(wport->byte_count % wport->frame_size == 0); - wport->MSC_offset = ustmsc.msc - wport->byte_count / wport->frame_size; - } - __swb_inc_i(wport, nb); - wport->byte_count += nb; - wport->frag_count += nb / fragsize; - ASSERT(nb % fragsize == 0); - wake_up(&wport->queue); - } - wport->flags &= ~HW_BUSY; - spin_unlock_irqrestore(&wport->lock, iflags); - DBGRV(); -} - -/* - * pcm_input() is called both from baselevel and from interrupt level. - * This is where audio frames are copied out of the hardware-accessible - * ring buffer. - * - * Locking note: The part of this routine that figures out what to do - * holds rport->lock. The longer part releases rport->lock, but sets - * rport->flags & HW_BUSY. Afterward, it reacquires rport->lock, and - * checks for more work to do. - * - * If another thread calls pcm_input() while HW_BUSY is set, it - * returns immediately, knowing that the thread that set HW_BUSY will - * look for more work to do before returning. - * - * This has the advantage that port->lock is held for several short - * periods instead of one long period. Also, when pcm_input is - * called from base level, it reenables interrupts. - */ - -static void pcm_input(vwsnd_dev_t *devc, int erflown, int nb) -{ - vwsnd_port_t *rport = &devc->rport; - const int hwmax = rport->hwbuf_max; - const int hwsize = rport->hwbuf_size; - const int swsize = rport->swbuf_size; - const int fragsize = rport->hw_fragsize; - unsigned long iflags; - - DBGEV("(devc=0x%p, erflown=%d, nb=%d)\n", devc, erflown, nb); - - spin_lock_irqsave(&rport->lock, iflags); - if (erflown) - rport->flags |= ERFLOWN; - (void) __swb_inc_u(rport, nb); - if (rport->flags & HW_BUSY || !rport->swbuf) { - spin_unlock_irqrestore(&rport->lock, iflags); - DBGPV("returning: HW BUSY or !swbuf\n"); - return; - } - if (rport->flags & DISABLED) { - spin_unlock_irqrestore(&rport->lock, iflags); - DBGPV("returning: DISABLED\n"); - return; - } - rport->flags |= HW_BUSY; - while (1) { - int swptr, hwptr, hw_avail, sw_avail, swidx; - vwsnd_port_hwstate_t hwstate = rport->hwstate; - vwsnd_port_swstate_t swstate = rport->swstate; - - hwptr = li_read_hwptr(&rport->chan); - swptr = li_read_swptr(&rport->chan); - hw_avail = (hwptr - swptr + hwsize) % hwsize & -fragsize; - if (hw_avail > hwmax) - hw_avail = hwmax; - sw_avail = rport->swb_i_avail & -fragsize; - if (swstate != SW_RUN) { - DBGP("stopping. hwstate = %d\n", hwstate); - if (hwstate != HW_STOPPED) { - li_deactivate_dma(&rport->chan); - rport->hwstate = HW_STOPPED; - } - wake_up(&rport->queue); - break; - } - if (!sw_avail || !hw_avail) - break; - spin_unlock_irqrestore(&rport->lock, iflags); - - /* - * We gave up the port lock, but we have the HW_BUSY flag. - * Proceed without accessing any nonlocal state. - * Do not exit the loop -- must check for more work. - */ - - swidx = rport->swb_i_idx; - nb = hw_avail; - if (nb > sw_avail) - nb = sw_avail; - if (nb > hwsize - swptr) - nb = hwsize - swptr; /* don't overflow hwbuf */ - if (nb > swsize - swidx) - nb = swsize - swidx; /* don't overflow swbuf */ - ASSERT(nb > 0); - if (nb % fragsize) { - DBGP("nb = %d, fragsize = %d\n", nb, fragsize); - DBGP("hw_avail = %d\n", hw_avail); - DBGP("sw_avail = %d\n", sw_avail); - DBGP("hwsize = %d, swptr = %d\n", hwsize, swptr); - DBGP("swsize = %d, swidx = %d\n", swsize, swidx); - } - ASSERT(!(nb % fragsize)); - DBGPV("copying hwb[%d..%d] to swb[%d..%d]\n", - swptr, swptr + nb, swidx, swidx + nb); - pcm_copy_in(rport, swidx, swptr, nb); - li_write_swptr(&rport->chan, (swptr + nb) % hwsize); - spin_lock_irqsave(&rport->lock, iflags); - __swb_inc_i(rport, nb); - rport->byte_count += nb; - rport->frag_count += nb / fragsize; - ASSERT(nb % fragsize == 0); - wake_up(&rport->queue); - } - rport->flags &= ~HW_BUSY; - spin_unlock_irqrestore(&rport->lock, iflags); - DBGRV(); -} - -/* - * pcm_flush_frag() writes zero samples to fill the current fragment, - * then flushes it to the hardware. - * - * It is only meaningful to flush output, not input. - */ - -static void pcm_flush_frag(vwsnd_dev_t *devc) -{ - vwsnd_port_t *wport = &devc->wport; - - DBGPV("swstate = %d\n", wport->swstate); - if (wport->swstate == SW_RUN) { - int idx = wport->swb_u_idx; - int end = (idx + wport->hw_fragsize - 1) - >> wport->hw_fragshift - << wport->hw_fragshift; - int nb = end - idx; - DBGPV("clearing %d bytes\n", nb); - if (nb) - memset(wport->swbuf + idx, - (char) wport->zero_word, - nb); - wport->swstate = SW_DRAIN; - pcm_output(devc, 0, nb); - } - DBGRV(); -} - -/* - * Wait for output to drain. This sleeps uninterruptibly because - * there is nothing intelligent we can do if interrupted. This - * means the process will be delayed in responding to the signal. - */ - -static void pcm_write_sync(vwsnd_dev_t *devc) -{ - vwsnd_port_t *wport = &devc->wport; - DECLARE_WAITQUEUE(wait, current); - unsigned long flags; - vwsnd_port_hwstate_t hwstate; - - DBGEV("(devc=0x%p)\n", devc); - add_wait_queue(&wport->queue, &wait); - while (1) { - set_current_state(TASK_UNINTERRUPTIBLE); - spin_lock_irqsave(&wport->lock, flags); - { - hwstate = wport->hwstate; - } - spin_unlock_irqrestore(&wport->lock, flags); - if (hwstate == HW_STOPPED) - break; - schedule(); - } - current->state = TASK_RUNNING; - remove_wait_queue(&wport->queue, &wait); - DBGPV("swstate = %d, hwstate = %d\n", wport->swstate, wport->hwstate); - DBGRV(); -} - -/*****************************************************************************/ -/* audio driver */ - -/* - * seek on an audio device always fails. - */ - -static void vwsnd_audio_read_intr(vwsnd_dev_t *devc, unsigned int status) -{ - int overflown = status & LI_INTR_COMM1_OVERFLOW; - - if (status & READ_INTR_MASK) - pcm_input(devc, overflown, 0); -} - -static void vwsnd_audio_write_intr(vwsnd_dev_t *devc, unsigned int status) -{ - int underflown = status & LI_INTR_COMM2_UNDERFLOW; - - if (status & WRITE_INTR_MASK) - pcm_output(devc, underflown, 0); -} - -static irqreturn_t vwsnd_audio_intr(int irq, void *dev_id) -{ - vwsnd_dev_t *devc = dev_id; - unsigned int status; - - DBGEV("(irq=%d, dev_id=0x%p)\n", irq, dev_id); - - status = li_get_clear_intr_status(&devc->lith); - vwsnd_audio_read_intr(devc, status); - vwsnd_audio_write_intr(devc, status); - return IRQ_HANDLED; -} - -static ssize_t vwsnd_audio_do_read(struct file *file, - char *buffer, - size_t count, - loff_t *ppos) -{ - vwsnd_dev_t *devc = file->private_data; - vwsnd_port_t *rport = ((file->f_mode & FMODE_READ) ? - &devc->rport : NULL); - int ret, nb; - - DBGEV("(file=0x%p, buffer=0x%p, count=%d, ppos=0x%p)\n", - file, buffer, count, ppos); - - if (!rport) - return -EINVAL; - - if (rport->swbuf == NULL) { - vwsnd_port_t *wport = (file->f_mode & FMODE_WRITE) ? - &devc->wport : NULL; - ret = pcm_setup(devc, rport, wport); - if (ret < 0) - return ret; - } - - if (!access_ok(VERIFY_READ, buffer, count)) - return -EFAULT; - ret = 0; - while (count) { - DECLARE_WAITQUEUE(wait, current); - add_wait_queue(&rport->queue, &wait); - while ((nb = swb_inc_u(rport, 0)) == 0) { - DBGPV("blocking\n"); - set_current_state(TASK_INTERRUPTIBLE); - if (rport->flags & DISABLED || - file->f_flags & O_NONBLOCK) { - current->state = TASK_RUNNING; - remove_wait_queue(&rport->queue, &wait); - return ret ? ret : -EAGAIN; - } - schedule(); - if (signal_pending(current)) { - current->state = TASK_RUNNING; - remove_wait_queue(&rport->queue, &wait); - return ret ? ret : -ERESTARTSYS; - } - } - current->state = TASK_RUNNING; - remove_wait_queue(&rport->queue, &wait); - pcm_input(devc, 0, 0); - /* nb bytes are available in userbuf. */ - if (nb > count) - nb = count; - DBGPV("nb = %d\n", nb); - if (copy_to_user(buffer, rport->swbuf + rport->swb_u_idx, nb)) - return -EFAULT; - (void) swb_inc_u(rport, nb); - buffer += nb; - count -= nb; - ret += nb; - } - DBGPV("returning %d\n", ret); - return ret; -} - -static ssize_t vwsnd_audio_read(struct file *file, - char *buffer, - size_t count, - loff_t *ppos) -{ - vwsnd_dev_t *devc = file->private_data; - ssize_t ret; - - mutex_lock(&devc->io_mutex); - ret = vwsnd_audio_do_read(file, buffer, count, ppos); - mutex_unlock(&devc->io_mutex); - return ret; -} - -static ssize_t vwsnd_audio_do_write(struct file *file, - const char *buffer, - size_t count, - loff_t *ppos) -{ - vwsnd_dev_t *devc = file->private_data; - vwsnd_port_t *wport = ((file->f_mode & FMODE_WRITE) ? - &devc->wport : NULL); - int ret, nb; - - DBGEV("(file=0x%p, buffer=0x%p, count=%d, ppos=0x%p)\n", - file, buffer, count, ppos); - - if (!wport) - return -EINVAL; - - if (wport->swbuf == NULL) { - vwsnd_port_t *rport = (file->f_mode & FMODE_READ) ? - &devc->rport : NULL; - ret = pcm_setup(devc, rport, wport); - if (ret < 0) - return ret; - } - if (!access_ok(VERIFY_WRITE, buffer, count)) - return -EFAULT; - ret = 0; - while (count) { - DECLARE_WAITQUEUE(wait, current); - add_wait_queue(&wport->queue, &wait); - while ((nb = swb_inc_u(wport, 0)) == 0) { - set_current_state(TASK_INTERRUPTIBLE); - if (wport->flags & DISABLED || - file->f_flags & O_NONBLOCK) { - current->state = TASK_RUNNING; - remove_wait_queue(&wport->queue, &wait); - return ret ? ret : -EAGAIN; - } - schedule(); - if (signal_pending(current)) { - current->state = TASK_RUNNING; - remove_wait_queue(&wport->queue, &wait); - return ret ? ret : -ERESTARTSYS; - } - } - current->state = TASK_RUNNING; - remove_wait_queue(&wport->queue, &wait); - /* nb bytes are available in userbuf. */ - if (nb > count) - nb = count; - DBGPV("nb = %d\n", nb); - if (copy_from_user(wport->swbuf + wport->swb_u_idx, buffer, nb)) - return -EFAULT; - pcm_output(devc, 0, nb); - buffer += nb; - count -= nb; - ret += nb; - } - DBGPV("returning %d\n", ret); - return ret; -} - -static ssize_t vwsnd_audio_write(struct file *file, - const char *buffer, - size_t count, - loff_t *ppos) -{ - vwsnd_dev_t *devc = file->private_data; - ssize_t ret; - - mutex_lock(&devc->io_mutex); - ret = vwsnd_audio_do_write(file, buffer, count, ppos); - mutex_unlock(&devc->io_mutex); - return ret; -} - -/* No kernel lock - fine */ -static unsigned int vwsnd_audio_poll(struct file *file, - struct poll_table_struct *wait) -{ - vwsnd_dev_t *devc = (vwsnd_dev_t *) file->private_data; - vwsnd_port_t *rport = (file->f_mode & FMODE_READ) ? - &devc->rport : NULL; - vwsnd_port_t *wport = (file->f_mode & FMODE_WRITE) ? - &devc->wport : NULL; - unsigned int mask = 0; - - DBGEV("(file=0x%p, wait=0x%p)\n", file, wait); - - ASSERT(rport || wport); - if (rport) { - poll_wait(file, &rport->queue, wait); - if (swb_inc_u(rport, 0)) - mask |= (POLLIN | POLLRDNORM); - } - if (wport) { - poll_wait(file, &wport->queue, wait); - if (wport->swbuf == NULL || swb_inc_u(wport, 0)) - mask |= (POLLOUT | POLLWRNORM); - } - - DBGPV("returning 0x%x\n", mask); - return mask; -} - -static int vwsnd_audio_do_ioctl(struct file *file, - unsigned int cmd, - unsigned long arg) -{ - vwsnd_dev_t *devc = (vwsnd_dev_t *) file->private_data; - vwsnd_port_t *rport = (file->f_mode & FMODE_READ) ? - &devc->rport : NULL; - vwsnd_port_t *wport = (file->f_mode & FMODE_WRITE) ? - &devc->wport : NULL; - vwsnd_port_t *aport = rport ? rport : wport; - struct audio_buf_info buf_info; - struct count_info info; - unsigned long flags; - int ival; - - - DBGEV("(file=0x%p, cmd=0x%x, arg=0x%lx)\n", - file, cmd, arg); - switch (cmd) { - case OSS_GETVERSION: /* _SIOR ('M', 118, int) */ - DBGX("OSS_GETVERSION\n"); - ival = SOUND_VERSION; - return put_user(ival, (int *) arg); - - case SNDCTL_DSP_GETCAPS: /* _SIOR ('P',15, int) */ - DBGX("SNDCTL_DSP_GETCAPS\n"); - ival = DSP_CAP_DUPLEX | DSP_CAP_REALTIME | DSP_CAP_TRIGGER; - return put_user(ival, (int *) arg); - - case SNDCTL_DSP_GETFMTS: /* _SIOR ('P',11, int) */ - DBGX("SNDCTL_DSP_GETFMTS\n"); - ival = (AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW | - AFMT_U8 | AFMT_S8); - return put_user(ival, (int *) arg); - break; - - case SOUND_PCM_READ_RATE: /* _SIOR ('P', 2, int) */ - DBGX("SOUND_PCM_READ_RATE\n"); - ival = aport->sw_framerate; - return put_user(ival, (int *) arg); - - case SOUND_PCM_READ_CHANNELS: /* _SIOR ('P', 6, int) */ - DBGX("SOUND_PCM_READ_CHANNELS\n"); - ival = aport->sw_channels; - return put_user(ival, (int *) arg); - - case SNDCTL_DSP_SPEED: /* _SIOWR('P', 2, int) */ - if (get_user(ival, (int *) arg)) - return -EFAULT; - DBGX("SNDCTL_DSP_SPEED %d\n", ival); - if (ival) { - if (aport->swstate != SW_INITIAL) { - DBGX("SNDCTL_DSP_SPEED failed: swstate = %d\n", - aport->swstate); - return -EINVAL; - } - if (ival < MIN_SPEED) - ival = MIN_SPEED; - if (ival > MAX_SPEED) - ival = MAX_SPEED; - if (rport) - rport->sw_framerate = ival; - if (wport) - wport->sw_framerate = ival; - } else - ival = aport->sw_framerate; - return put_user(ival, (int *) arg); - - case SNDCTL_DSP_STEREO: /* _SIOWR('P', 3, int) */ - if (get_user(ival, (int *) arg)) - return -EFAULT; - DBGX("SNDCTL_DSP_STEREO %d\n", ival); - if (ival != 0 && ival != 1) - return -EINVAL; - if (aport->swstate != SW_INITIAL) - return -EINVAL; - if (rport) - rport->sw_channels = ival + 1; - if (wport) - wport->sw_channels = ival + 1; - return put_user(ival, (int *) arg); - - case SNDCTL_DSP_CHANNELS: /* _SIOWR('P', 6, int) */ - if (get_user(ival, (int *) arg)) - return -EFAULT; - DBGX("SNDCTL_DSP_CHANNELS %d\n", ival); - if (ival != 1 && ival != 2) - return -EINVAL; - if (aport->swstate != SW_INITIAL) - return -EINVAL; - if (rport) - rport->sw_channels = ival; - if (wport) - wport->sw_channels = ival; - return put_user(ival, (int *) arg); - - case SNDCTL_DSP_GETBLKSIZE: /* _SIOWR('P', 4, int) */ - ival = pcm_setup(devc, rport, wport); - if (ival < 0) { - DBGX("SNDCTL_DSP_GETBLKSIZE failed, errno %d\n", ival); - return ival; - } - ival = 1 << aport->sw_fragshift; - DBGX("SNDCTL_DSP_GETBLKSIZE returning %d\n", ival); - return put_user(ival, (int *) arg); - - case SNDCTL_DSP_SETFRAGMENT: /* _SIOWR('P',10, int) */ - if (get_user(ival, (int *) arg)) - return -EFAULT; - DBGX("SNDCTL_DSP_SETFRAGMENT %d:%d\n", - ival >> 16, ival & 0xFFFF); - if (aport->swstate != SW_INITIAL) - return -EINVAL; - { - int sw_fragshift = ival & 0xFFFF; - int sw_subdivshift = aport->sw_subdivshift; - int hw_fragshift = sw_fragshift - sw_subdivshift; - int sw_fragcount = (ival >> 16) & 0xFFFF; - int hw_fragsize; - if (hw_fragshift < MIN_FRAGSHIFT) - hw_fragshift = MIN_FRAGSHIFT; - if (hw_fragshift > MAX_FRAGSHIFT) - hw_fragshift = MAX_FRAGSHIFT; - sw_fragshift = hw_fragshift + aport->sw_subdivshift; - hw_fragsize = 1 << hw_fragshift; - if (sw_fragcount < MIN_FRAGCOUNT(hw_fragsize)) - sw_fragcount = MIN_FRAGCOUNT(hw_fragsize); - if (sw_fragcount > MAX_FRAGCOUNT(hw_fragsize)) - sw_fragcount = MAX_FRAGCOUNT(hw_fragsize); - DBGPV("sw_fragshift = %d\n", sw_fragshift); - DBGPV("rport = 0x%p, wport = 0x%p\n", rport, wport); - if (rport) { - rport->sw_fragshift = sw_fragshift; - rport->sw_fragcount = sw_fragcount; - } - if (wport) { - wport->sw_fragshift = sw_fragshift; - wport->sw_fragcount = sw_fragcount; - } - ival = sw_fragcount << 16 | sw_fragshift; - } - DBGX("SNDCTL_DSP_SETFRAGMENT returns %d:%d\n", - ival >> 16, ival & 0xFFFF); - return put_user(ival, (int *) arg); - - case SNDCTL_DSP_SUBDIVIDE: /* _SIOWR('P', 9, int) */ - if (get_user(ival, (int *) arg)) - return -EFAULT; - DBGX("SNDCTL_DSP_SUBDIVIDE %d\n", ival); - if (aport->swstate != SW_INITIAL) - return -EINVAL; - { - int subdivshift; - int hw_fragshift, hw_fragsize, hw_fragcount; - switch (ival) { - case 1: subdivshift = 0; break; - case 2: subdivshift = 1; break; - case 4: subdivshift = 2; break; - default: return -EINVAL; - } - hw_fragshift = aport->sw_fragshift - subdivshift; - if (hw_fragshift < MIN_FRAGSHIFT || - hw_fragshift > MAX_FRAGSHIFT) - return -EINVAL; - hw_fragsize = 1 << hw_fragshift; - hw_fragcount = aport->sw_fragcount >> subdivshift; - if (hw_fragcount < MIN_FRAGCOUNT(hw_fragsize) || - hw_fragcount > MAX_FRAGCOUNT(hw_fragsize)) - return -EINVAL; - if (rport) - rport->sw_subdivshift = subdivshift; - if (wport) - wport->sw_subdivshift = subdivshift; - } - return 0; - - case SNDCTL_DSP_SETFMT: /* _SIOWR('P',5, int) */ - if (get_user(ival, (int *) arg)) - return -EFAULT; - DBGX("SNDCTL_DSP_SETFMT %d\n", ival); - if (ival != AFMT_QUERY) { - if (aport->swstate != SW_INITIAL) { - DBGP("SETFMT failed, swstate = %d\n", - aport->swstate); - return -EINVAL; - } - switch (ival) { - case AFMT_MU_LAW: - case AFMT_A_LAW: - case AFMT_U8: - case AFMT_S8: - case AFMT_S16_LE: - if (rport) - rport->sw_samplefmt = ival; - if (wport) - wport->sw_samplefmt = ival; - break; - default: - return -EINVAL; - } - } - ival = aport->sw_samplefmt; - return put_user(ival, (int *) arg); - - case SNDCTL_DSP_GETOSPACE: /* _SIOR ('P',12, audio_buf_info) */ - DBGXV("SNDCTL_DSP_GETOSPACE\n"); - if (!wport) - return -EINVAL; - ival = pcm_setup(devc, rport, wport); - if (ival < 0) - return ival; - ival = swb_inc_u(wport, 0); - buf_info.fragments = ival >> wport->sw_fragshift; - buf_info.fragstotal = wport->sw_fragcount; - buf_info.fragsize = 1 << wport->sw_fragshift; - buf_info.bytes = ival; - DBGXV("SNDCTL_DSP_GETOSPACE returns { %d %d %d %d }\n", - buf_info.fragments, buf_info.fragstotal, - buf_info.fragsize, buf_info.bytes); - if (copy_to_user((void *) arg, &buf_info, sizeof buf_info)) - return -EFAULT; - return 0; - - case SNDCTL_DSP_GETISPACE: /* _SIOR ('P',13, audio_buf_info) */ - DBGX("SNDCTL_DSP_GETISPACE\n"); - if (!rport) - return -EINVAL; - ival = pcm_setup(devc, rport, wport); - if (ival < 0) - return ival; - ival = swb_inc_u(rport, 0); - buf_info.fragments = ival >> rport->sw_fragshift; - buf_info.fragstotal = rport->sw_fragcount; - buf_info.fragsize = 1 << rport->sw_fragshift; - buf_info.bytes = ival; - DBGX("SNDCTL_DSP_GETISPACE returns { %d %d %d %d }\n", - buf_info.fragments, buf_info.fragstotal, - buf_info.fragsize, buf_info.bytes); - if (copy_to_user((void *) arg, &buf_info, sizeof buf_info)) - return -EFAULT; - return 0; - - case SNDCTL_DSP_NONBLOCK: /* _SIO ('P',14) */ - DBGX("SNDCTL_DSP_NONBLOCK\n"); - spin_lock(&file->f_lock); - file->f_flags |= O_NONBLOCK; - spin_unlock(&file->f_lock); - return 0; - - case SNDCTL_DSP_RESET: /* _SIO ('P', 0) */ - DBGX("SNDCTL_DSP_RESET\n"); - /* - * Nothing special needs to be done for input. Input - * samples sit in swbuf, but it will be reinitialized - * to empty when pcm_setup() is called. - */ - if (wport && wport->swbuf) { - wport->swstate = SW_INITIAL; - pcm_output(devc, 0, 0); - pcm_write_sync(devc); - } - pcm_shutdown(devc, rport, wport); - return 0; - - case SNDCTL_DSP_SYNC: /* _SIO ('P', 1) */ - DBGX("SNDCTL_DSP_SYNC\n"); - if (wport) { - pcm_flush_frag(devc); - pcm_write_sync(devc); - } - pcm_shutdown(devc, rport, wport); - return 0; - - case SNDCTL_DSP_POST: /* _SIO ('P', 8) */ - DBGX("SNDCTL_DSP_POST\n"); - if (!wport) - return -EINVAL; - pcm_flush_frag(devc); - return 0; - - case SNDCTL_DSP_GETIPTR: /* _SIOR ('P', 17, count_info) */ - DBGX("SNDCTL_DSP_GETIPTR\n"); - if (!rport) - return -EINVAL; - spin_lock_irqsave(&rport->lock, flags); - { - ustmsc_t ustmsc; - if (rport->hwstate == HW_RUNNING) { - ASSERT(rport->swstate == SW_RUN); - li_read_USTMSC(&rport->chan, &ustmsc); - info.bytes = ustmsc.msc - rport->MSC_offset; - info.bytes *= rport->frame_size; - } else { - info.bytes = rport->byte_count; - } - info.blocks = rport->frag_count; - info.ptr = 0; /* not implemented */ - rport->frag_count = 0; - } - spin_unlock_irqrestore(&rport->lock, flags); - if (copy_to_user((void *) arg, &info, sizeof info)) - return -EFAULT; - return 0; - - case SNDCTL_DSP_GETOPTR: /* _SIOR ('P',18, count_info) */ - DBGX("SNDCTL_DSP_GETOPTR\n"); - if (!wport) - return -EINVAL; - spin_lock_irqsave(&wport->lock, flags); - { - ustmsc_t ustmsc; - if (wport->hwstate == HW_RUNNING) { - ASSERT(wport->swstate == SW_RUN); - li_read_USTMSC(&wport->chan, &ustmsc); - info.bytes = ustmsc.msc - wport->MSC_offset; - info.bytes *= wport->frame_size; - } else { - info.bytes = wport->byte_count; - } - info.blocks = wport->frag_count; - info.ptr = 0; /* not implemented */ - wport->frag_count = 0; - } - spin_unlock_irqrestore(&wport->lock, flags); - if (copy_to_user((void *) arg, &info, sizeof info)) - return -EFAULT; - return 0; - - case SNDCTL_DSP_GETODELAY: /* _SIOR ('P', 23, int) */ - DBGX("SNDCTL_DSP_GETODELAY\n"); - if (!wport) - return -EINVAL; - spin_lock_irqsave(&wport->lock, flags); - { - int fsize = wport->frame_size; - ival = wport->swb_i_avail / fsize; - if (wport->hwstate == HW_RUNNING) { - int swptr, hwptr, hwframes, hwbytes, hwsize; - int totalhwbytes; - ustmsc_t ustmsc; - - hwsize = wport->hwbuf_size; - swptr = li_read_swptr(&wport->chan); - li_read_USTMSC(&wport->chan, &ustmsc); - hwframes = ustmsc.msc - wport->MSC_offset; - totalhwbytes = hwframes * fsize; - hwptr = totalhwbytes % hwsize; - hwbytes = (swptr - hwptr + hwsize) % hwsize; - ival += hwbytes / fsize; - } - } - spin_unlock_irqrestore(&wport->lock, flags); - return put_user(ival, (int *) arg); - - case SNDCTL_DSP_PROFILE: /* _SIOW ('P', 23, int) */ - DBGX("SNDCTL_DSP_PROFILE\n"); - - /* - * Thomas Sailer explains SNDCTL_DSP_PROFILE - * (private email, March 24, 1999): - * - * This gives the sound driver a hint on what it - * should do with partial fragments - * (i.e. fragments partially filled with write). - * This can direct the driver to zero them or - * leave them alone. But don't ask me what this - * is good for, my driver just zeroes the last - * fragment before the receiver stops, no idea - * what good for any other behaviour could - * be. Implementing it as NOP seems safe. - */ - - break; - - case SNDCTL_DSP_GETTRIGGER: /* _SIOR ('P',16, int) */ - DBGX("SNDCTL_DSP_GETTRIGGER\n"); - ival = 0; - if (rport) { - spin_lock_irqsave(&rport->lock, flags); - { - if (!(rport->flags & DISABLED)) - ival |= PCM_ENABLE_INPUT; - } - spin_unlock_irqrestore(&rport->lock, flags); - } - if (wport) { - spin_lock_irqsave(&wport->lock, flags); - { - if (!(wport->flags & DISABLED)) - ival |= PCM_ENABLE_OUTPUT; - } - spin_unlock_irqrestore(&wport->lock, flags); - } - return put_user(ival, (int *) arg); - - case SNDCTL_DSP_SETTRIGGER: /* _SIOW ('P',16, int) */ - if (get_user(ival, (int *) arg)) - return -EFAULT; - DBGX("SNDCTL_DSP_SETTRIGGER %d\n", ival); - - /* - * If user is disabling I/O and port is not in initial - * state, fail with EINVAL. - */ - - if (((rport && !(ival & PCM_ENABLE_INPUT)) || - (wport && !(ival & PCM_ENABLE_OUTPUT))) && - aport->swstate != SW_INITIAL) - return -EINVAL; - - if (rport) { - vwsnd_port_hwstate_t hwstate; - spin_lock_irqsave(&rport->lock, flags); - { - hwstate = rport->hwstate; - if (ival & PCM_ENABLE_INPUT) - rport->flags &= ~DISABLED; - else - rport->flags |= DISABLED; - } - spin_unlock_irqrestore(&rport->lock, flags); - if (hwstate != HW_RUNNING && ival & PCM_ENABLE_INPUT) { - - if (rport->swstate == SW_INITIAL) - pcm_setup(devc, rport, wport); - else - li_activate_dma(&rport->chan); - } - } - if (wport) { - vwsnd_port_flags_t pflags; - spin_lock_irqsave(&wport->lock, flags); - { - pflags = wport->flags; - if (ival & PCM_ENABLE_OUTPUT) - wport->flags &= ~DISABLED; - else - wport->flags |= DISABLED; - } - spin_unlock_irqrestore(&wport->lock, flags); - if (pflags & DISABLED && ival & PCM_ENABLE_OUTPUT) { - if (wport->swstate == SW_RUN) - pcm_output(devc, 0, 0); - } - } - return 0; - - default: - DBGP("unknown ioctl 0x%x\n", cmd); - return -EINVAL; - } - DBGP("unimplemented ioctl 0x%x\n", cmd); - return -EINVAL; -} - -static long vwsnd_audio_ioctl(struct file *file, - unsigned int cmd, - unsigned long arg) -{ - vwsnd_dev_t *devc = (vwsnd_dev_t *) file->private_data; - int ret; - - mutex_lock(&vwsnd_mutex); - mutex_lock(&devc->io_mutex); - ret = vwsnd_audio_do_ioctl(file, cmd, arg); - mutex_unlock(&devc->io_mutex); - mutex_unlock(&vwsnd_mutex); - - return ret; -} - -/* No mmap. */ - -static int vwsnd_audio_mmap(struct file *file, struct vm_area_struct *vma) -{ - DBGE("(file=0x%p, vma=0x%p)\n", file, vma); - return -ENODEV; -} - -/* - * Open the audio device for read and/or write. - * - * Returns 0 on success, -errno on failure. - */ - -static int vwsnd_audio_open(struct inode *inode, struct file *file) -{ - vwsnd_dev_t *devc; - int minor = iminor(inode); - int sw_samplefmt; - - DBGE("(inode=0x%p, file=0x%p)\n", inode, file); - - mutex_lock(&vwsnd_mutex); - INC_USE_COUNT; - for (devc = vwsnd_dev_list; devc; devc = devc->next_dev) - if ((devc->audio_minor & ~0x0F) == (minor & ~0x0F)) - break; - - if (devc == NULL) { - DEC_USE_COUNT; - mutex_unlock(&vwsnd_mutex); - return -ENODEV; - } - - mutex_lock(&devc->open_mutex); - while (devc->open_mode & file->f_mode) { - mutex_unlock(&devc->open_mutex); - if (file->f_flags & O_NONBLOCK) { - DEC_USE_COUNT; - mutex_unlock(&vwsnd_mutex); - return -EBUSY; - } - interruptible_sleep_on(&devc->open_wait); - if (signal_pending(current)) { - DEC_USE_COUNT; - mutex_unlock(&vwsnd_mutex); - return -ERESTARTSYS; - } - mutex_lock(&devc->open_mutex); - } - devc->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE); - mutex_unlock(&devc->open_mutex); - - /* get default sample format from minor number. */ - - sw_samplefmt = 0; - if ((minor & 0xF) == SND_DEV_DSP) - sw_samplefmt = AFMT_U8; - else if ((minor & 0xF) == SND_DEV_AUDIO) - sw_samplefmt = AFMT_MU_LAW; - else if ((minor & 0xF) == SND_DEV_DSP16) - sw_samplefmt = AFMT_S16_LE; - else - ASSERT(0); - - /* Initialize vwsnd_ports. */ - - mutex_lock(&devc->io_mutex); - { - if (file->f_mode & FMODE_READ) { - devc->rport.swstate = SW_INITIAL; - devc->rport.flags = 0; - devc->rport.sw_channels = 1; - devc->rport.sw_samplefmt = sw_samplefmt; - devc->rport.sw_framerate = 8000; - devc->rport.sw_fragshift = DEFAULT_FRAGSHIFT; - devc->rport.sw_fragcount = DEFAULT_FRAGCOUNT; - devc->rport.sw_subdivshift = DEFAULT_SUBDIVSHIFT; - devc->rport.byte_count = 0; - devc->rport.frag_count = 0; - } - if (file->f_mode & FMODE_WRITE) { - devc->wport.swstate = SW_INITIAL; - devc->wport.flags = 0; - devc->wport.sw_channels = 1; - devc->wport.sw_samplefmt = sw_samplefmt; - devc->wport.sw_framerate = 8000; - devc->wport.sw_fragshift = DEFAULT_FRAGSHIFT; - devc->wport.sw_fragcount = DEFAULT_FRAGCOUNT; - devc->wport.sw_subdivshift = DEFAULT_SUBDIVSHIFT; - devc->wport.byte_count = 0; - devc->wport.frag_count = 0; - } - } - mutex_unlock(&devc->io_mutex); - - file->private_data = devc; - DBGRV(); - mutex_unlock(&vwsnd_mutex); - return 0; -} - -/* - * Release (close) the audio device. - */ - -static int vwsnd_audio_release(struct inode *inode, struct file *file) -{ - vwsnd_dev_t *devc = (vwsnd_dev_t *) file->private_data; - vwsnd_port_t *wport = NULL, *rport = NULL; - int err = 0; - - mutex_lock(&vwsnd_mutex); - mutex_lock(&devc->io_mutex); - { - DBGEV("(inode=0x%p, file=0x%p)\n", inode, file); - - if (file->f_mode & FMODE_READ) - rport = &devc->rport; - if (file->f_mode & FMODE_WRITE) { - wport = &devc->wport; - pcm_flush_frag(devc); - pcm_write_sync(devc); - } - pcm_shutdown(devc, rport, wport); - if (rport) - rport->swstate = SW_OFF; - if (wport) - wport->swstate = SW_OFF; - } - mutex_unlock(&devc->io_mutex); - - mutex_lock(&devc->open_mutex); - { - devc->open_mode &= ~file->f_mode; - } - mutex_unlock(&devc->open_mutex); - wake_up(&devc->open_wait); - DEC_USE_COUNT; - DBGR(); - mutex_unlock(&vwsnd_mutex); - return err; -} - -static const struct file_operations vwsnd_audio_fops = { - .owner = THIS_MODULE, - .llseek = no_llseek, - .read = vwsnd_audio_read, - .write = vwsnd_audio_write, - .poll = vwsnd_audio_poll, - .unlocked_ioctl = vwsnd_audio_ioctl, - .mmap = vwsnd_audio_mmap, - .open = vwsnd_audio_open, - .release = vwsnd_audio_release, -}; - -/*****************************************************************************/ -/* mixer driver */ - -/* open the mixer device. */ - -static int vwsnd_mixer_open(struct inode *inode, struct file *file) -{ - vwsnd_dev_t *devc; - - DBGEV("(inode=0x%p, file=0x%p)\n", inode, file); - - INC_USE_COUNT; - mutex_lock(&vwsnd_mutex); - for (devc = vwsnd_dev_list; devc; devc = devc->next_dev) - if (devc->mixer_minor == iminor(inode)) - break; - - if (devc == NULL) { - DEC_USE_COUNT; - mutex_unlock(&vwsnd_mutex); - return -ENODEV; - } - file->private_data = devc; - mutex_unlock(&vwsnd_mutex); - return 0; -} - -/* release (close) the mixer device. */ - -static int vwsnd_mixer_release(struct inode *inode, struct file *file) -{ - DBGEV("(inode=0x%p, file=0x%p)\n", inode, file); - DEC_USE_COUNT; - return 0; -} - -/* mixer_read_ioctl handles all read ioctls on the mixer device. */ - -static int mixer_read_ioctl(vwsnd_dev_t *devc, unsigned int nr, void __user *arg) -{ - int val = -1; - - DBGEV("(devc=0x%p, nr=0x%x, arg=0x%p)\n", devc, nr, arg); - - switch (nr) { - case SOUND_MIXER_CAPS: - val = SOUND_CAP_EXCL_INPUT; - break; - - case SOUND_MIXER_DEVMASK: - val = (SOUND_MASK_PCM | SOUND_MASK_LINE | - SOUND_MASK_MIC | SOUND_MASK_CD | SOUND_MASK_RECLEV); - break; - - case SOUND_MIXER_STEREODEVS: - val = (SOUND_MASK_PCM | SOUND_MASK_LINE | - SOUND_MASK_MIC | SOUND_MASK_CD | SOUND_MASK_RECLEV); - break; - - case SOUND_MIXER_OUTMASK: - val = (SOUND_MASK_PCM | SOUND_MASK_LINE | - SOUND_MASK_MIC | SOUND_MASK_CD); - break; - - case SOUND_MIXER_RECMASK: - val = (SOUND_MASK_PCM | SOUND_MASK_LINE | - SOUND_MASK_MIC | SOUND_MASK_CD); - break; - - case SOUND_MIXER_PCM: - val = ad1843_get_gain(&devc->lith, &ad1843_gain_PCM); - break; - - case SOUND_MIXER_LINE: - val = ad1843_get_gain(&devc->lith, &ad1843_gain_LINE); - break; - - case SOUND_MIXER_MIC: - val = ad1843_get_gain(&devc->lith, &ad1843_gain_MIC); - break; - - case SOUND_MIXER_CD: - val = ad1843_get_gain(&devc->lith, &ad1843_gain_CD); - break; - - case SOUND_MIXER_RECLEV: - val = ad1843_get_gain(&devc->lith, &ad1843_gain_RECLEV); - break; - - case SOUND_MIXER_RECSRC: - val = ad1843_get_recsrc(&devc->lith); - break; - - case SOUND_MIXER_OUTSRC: - val = ad1843_get_outsrc(&devc->lith); - break; - - default: - return -EINVAL; - } - return put_user(val, (int __user *) arg); -} - -/* mixer_write_ioctl handles all write ioctls on the mixer device. */ - -static int mixer_write_ioctl(vwsnd_dev_t *devc, unsigned int nr, void __user *arg) -{ - int val; - int err; - - DBGEV("(devc=0x%p, nr=0x%x, arg=0x%p)\n", devc, nr, arg); - - err = get_user(val, (int __user *) arg); - if (err) - return -EFAULT; - switch (nr) { - case SOUND_MIXER_PCM: - val = ad1843_set_gain(&devc->lith, &ad1843_gain_PCM, val); - break; - - case SOUND_MIXER_LINE: - val = ad1843_set_gain(&devc->lith, &ad1843_gain_LINE, val); - break; - - case SOUND_MIXER_MIC: - val = ad1843_set_gain(&devc->lith, &ad1843_gain_MIC, val); - break; - - case SOUND_MIXER_CD: - val = ad1843_set_gain(&devc->lith, &ad1843_gain_CD, val); - break; - - case SOUND_MIXER_RECLEV: - val = ad1843_set_gain(&devc->lith, &ad1843_gain_RECLEV, val); - break; - - case SOUND_MIXER_RECSRC: - if (devc->rport.swbuf || devc->wport.swbuf) - return -EBUSY; /* can't change recsrc while running */ - val = ad1843_set_recsrc(&devc->lith, val); - break; - - case SOUND_MIXER_OUTSRC: - val = ad1843_set_outsrc(&devc->lith, val); - break; - - default: - return -EINVAL; - } - if (val < 0) - return val; - return put_user(val, (int __user *) arg); -} - -/* This is the ioctl entry to the mixer driver. */ - -static long vwsnd_mixer_ioctl(struct file *file, - unsigned int cmd, - unsigned long arg) -{ - vwsnd_dev_t *devc = (vwsnd_dev_t *) file->private_data; - const unsigned int nrmask = _IOC_NRMASK << _IOC_NRSHIFT; - const unsigned int nr = (cmd & nrmask) >> _IOC_NRSHIFT; - int retval; - - DBGEV("(devc=0x%p, cmd=0x%x, arg=0x%lx)\n", devc, cmd, arg); - - mutex_lock(&vwsnd_mutex); - mutex_lock(&devc->mix_mutex); - { - if ((cmd & ~nrmask) == MIXER_READ(0)) - retval = mixer_read_ioctl(devc, nr, (void __user *) arg); - else if ((cmd & ~nrmask) == MIXER_WRITE(0)) - retval = mixer_write_ioctl(devc, nr, (void __user *) arg); - else - retval = -EINVAL; - } - mutex_unlock(&devc->mix_mutex); - mutex_unlock(&vwsnd_mutex); - return retval; -} - -static const struct file_operations vwsnd_mixer_fops = { - .owner = THIS_MODULE, - .llseek = no_llseek, - .unlocked_ioctl = vwsnd_mixer_ioctl, - .open = vwsnd_mixer_open, - .release = vwsnd_mixer_release, -}; - -/*****************************************************************************/ -/* probe/attach/unload */ - -/* driver probe routine. Return nonzero if hardware is found. */ - -static int __init probe_vwsnd(struct address_info *hw_config) -{ - lithium_t lith; - int w; - unsigned long later; - - DBGEV("(hw_config=0x%p)\n", hw_config); - - /* XXX verify lithium present (to prevent crash on non-vw) */ - - if (li_create(&lith, hw_config->io_base) != 0) { - printk(KERN_WARNING "probe_vwsnd: can't map lithium\n"); - return 0; - } - later = jiffies + 2; - li_writel(&lith, LI_HOST_CONTROLLER, LI_HC_LINK_ENABLE); - do { - w = li_readl(&lith, LI_HOST_CONTROLLER); - } while (w == LI_HC_LINK_ENABLE && time_before(jiffies, later)); - - li_destroy(&lith); - - DBGPV("HC = 0x%04x\n", w); - - if ((w == LI_HC_LINK_ENABLE) || (w & LI_HC_LINK_CODEC)) { - - /* This may indicate a beta machine with no audio, - * or a future machine with different audio. - * On beta-release 320 w/ no audio, HC == 0x4000 */ - - printk(KERN_WARNING "probe_vwsnd: audio codec not found\n"); - return 0; - } - - if (w & LI_HC_LINK_FAILURE) { - printk(KERN_WARNING "probe_vwsnd: can't init audio codec\n"); - return 0; - } - - printk(KERN_INFO "vwsnd: lithium audio at mmio %#x irq %d\n", - hw_config->io_base, hw_config->irq); - - return 1; -} - -/* - * driver attach routine. Initialize driver data structures and - * initialize hardware. A new vwsnd_dev_t is allocated and put - * onto the global list, vwsnd_dev_list. - * - * Return +minor_dev on success, -errno on failure. - */ - -static int __init attach_vwsnd(struct address_info *hw_config) -{ - vwsnd_dev_t *devc = NULL; - int err = -ENOMEM; - - DBGEV("(hw_config=0x%p)\n", hw_config); - - devc = kmalloc(sizeof (vwsnd_dev_t), GFP_KERNEL); - if (devc == NULL) - goto fail0; - - err = li_create(&devc->lith, hw_config->io_base); - if (err) - goto fail1; - - init_waitqueue_head(&devc->open_wait); - - devc->rport.hwbuf_size = HWBUF_SIZE; - devc->rport.hwbuf_vaddr = __get_free_pages(GFP_KERNEL, HWBUF_ORDER); - if (!devc->rport.hwbuf_vaddr) - goto fail2; - devc->rport.hwbuf = (void *) devc->rport.hwbuf_vaddr; - devc->rport.hwbuf_paddr = virt_to_phys(devc->rport.hwbuf); - - /* - * Quote from the NT driver: - * - * // WARNING!!! HACK to setup output dma!!! - * // This is required because even on output there is some data - * // trickling into the input DMA channel. This is a bug in the - * // Lithium microcode. - * // --sde - * - * We set the input side's DMA base address here. It will remain - * valid until the driver is unloaded. - */ - - li_writel(&devc->lith, LI_COMM1_BASE, - devc->rport.hwbuf_paddr >> 8 | 1 << (37 - 8)); - - devc->wport.hwbuf_size = HWBUF_SIZE; - devc->wport.hwbuf_vaddr = __get_free_pages(GFP_KERNEL, HWBUF_ORDER); - if (!devc->wport.hwbuf_vaddr) - goto fail3; - devc->wport.hwbuf = (void *) devc->wport.hwbuf_vaddr; - devc->wport.hwbuf_paddr = virt_to_phys(devc->wport.hwbuf); - DBGP("wport hwbuf = 0x%p\n", devc->wport.hwbuf); - - DBGDO(shut_up++); - err = ad1843_init(&devc->lith); - DBGDO(shut_up--); - if (err) - goto fail4; - - /* install interrupt handler */ - - err = request_irq(hw_config->irq, vwsnd_audio_intr, 0, "vwsnd", devc); - if (err) - goto fail5; - - /* register this device's drivers. */ - - devc->audio_minor = register_sound_dsp(&vwsnd_audio_fops, -1); - if ((err = devc->audio_minor) < 0) { - DBGDO(printk(KERN_WARNING - "attach_vwsnd: register_sound_dsp error %d\n", - err)); - goto fail6; - } - devc->mixer_minor = register_sound_mixer(&vwsnd_mixer_fops, - devc->audio_minor >> 4); - if ((err = devc->mixer_minor) < 0) { - DBGDO(printk(KERN_WARNING - "attach_vwsnd: register_sound_mixer error %d\n", - err)); - goto fail7; - } - - /* Squirrel away device indices for unload routine. */ - - hw_config->slots[0] = devc->audio_minor; - - /* Initialize as much of *devc as possible */ - - mutex_init(&devc->open_mutex); - mutex_init(&devc->io_mutex); - mutex_init(&devc->mix_mutex); - devc->open_mode = 0; - spin_lock_init(&devc->rport.lock); - init_waitqueue_head(&devc->rport.queue); - devc->rport.swstate = SW_OFF; - devc->rport.hwstate = HW_STOPPED; - devc->rport.flags = 0; - devc->rport.swbuf = NULL; - spin_lock_init(&devc->wport.lock); - init_waitqueue_head(&devc->wport.queue); - devc->wport.swstate = SW_OFF; - devc->wport.hwstate = HW_STOPPED; - devc->wport.flags = 0; - devc->wport.swbuf = NULL; - - /* Success. Link us onto the local device list. */ - - devc->next_dev = vwsnd_dev_list; - vwsnd_dev_list = devc; - return devc->audio_minor; - - /* So many ways to fail. Undo what we did. */ - - fail7: - unregister_sound_dsp(devc->audio_minor); - fail6: - free_irq(hw_config->irq, devc); - fail5: - fail4: - free_pages(devc->wport.hwbuf_vaddr, HWBUF_ORDER); - fail3: - free_pages(devc->rport.hwbuf_vaddr, HWBUF_ORDER); - fail2: - li_destroy(&devc->lith); - fail1: - kfree(devc); - fail0: - return err; -} - -static int __exit unload_vwsnd(struct address_info *hw_config) -{ - vwsnd_dev_t *devc, **devcp; - - DBGE("()\n"); - - devcp = &vwsnd_dev_list; - while ((devc = *devcp)) { - if (devc->audio_minor == hw_config->slots[0]) { - *devcp = devc->next_dev; - break; - } - devcp = &devc->next_dev; - } - - if (!devc) - return -ENODEV; - - unregister_sound_mixer(devc->mixer_minor); - unregister_sound_dsp(devc->audio_minor); - free_irq(hw_config->irq, devc); - free_pages(devc->wport.hwbuf_vaddr, HWBUF_ORDER); - free_pages(devc->rport.hwbuf_vaddr, HWBUF_ORDER); - li_destroy(&devc->lith); - kfree(devc); - - return 0; -} - -/*****************************************************************************/ -/* initialization and loadable kernel module interface */ - -static struct address_info the_hw_config = { - 0xFF001000, /* lithium phys addr */ - CO_IRQ(CO_APIC_LI_AUDIO) /* irq */ -}; - -MODULE_DESCRIPTION("SGI Visual Workstation sound module"); -MODULE_AUTHOR("Bob Miller <kbob@sgi.com>"); -MODULE_LICENSE("GPL"); - -static int __init init_vwsnd(void) -{ - int err; - - DBGXV("\n"); - DBGXV("sound::vwsnd::init_module()\n"); - - if (!probe_vwsnd(&the_hw_config)) - return -ENODEV; - - err = attach_vwsnd(&the_hw_config); - if (err < 0) - return err; - return 0; -} - -static void __exit cleanup_vwsnd(void) -{ - DBGX("sound::vwsnd::cleanup_module()\n"); - - unload_vwsnd(&the_hw_config); -} - -module_init(init_vwsnd); -module_exit(cleanup_vwsnd); diff --git a/sound/oss/waveartist.c b/sound/oss/waveartist.c index 52468742d9f..672af8b5654 100644 --- a/sound/oss/waveartist.c +++ b/sound/oss/waveartist.c @@ -42,7 +42,6 @@ #include <linux/spinlock.h> #include <linux/bitops.h> -#include <asm/system.h> #include "sound_config.h" #include "waveartist.h" @@ -1483,9 +1482,9 @@ vnc_mute_spkr(wavnc_info *devc) { unsigned long flags; - spin_lock_irqsave(&nw_gpio_lock, flags); + raw_spin_lock_irqsave(&nw_gpio_lock, flags); nw_cpld_modify(CPLD_UNMUTE, devc->spkr_mute_state ? 0 : CPLD_UNMUTE); - spin_unlock_irqrestore(&nw_gpio_lock, flags); + raw_spin_unlock_irqrestore(&nw_gpio_lock, flags); } static void |