diff options
Diffstat (limited to 'sound/core')
51 files changed, 1737 insertions, 1255 deletions
diff --git a/sound/core/Kconfig b/sound/core/Kconfig index b413ed05e74..313f22e9d92 100644 --- a/sound/core/Kconfig +++ b/sound/core/Kconfig @@ -6,6 +6,9 @@ config SND_PCM tristate select SND_TIMER +config SND_DMAENGINE_PCM + tristate + config SND_HWDEP tristate @@ -157,6 +160,15 @@ config SND_DYNAMIC_MINORS If you are unsure about this, say N here. +config SND_MAX_CARDS + int "Max number of sound cards" + range 4 256 + default 32 + depends on SND_DYNAMIC_MINORS + help + Specify the max number of sound cards that can be assigned + on a single machine. + config SND_SUPPORT_OLD_API bool "Support old ALSA API" default y diff --git a/sound/core/Makefile b/sound/core/Makefile index 43d4117428a..394a38909f6 100644 --- a/sound/core/Makefile +++ b/sound/core/Makefile @@ -10,11 +10,11 @@ snd-$(CONFIG_SND_VMASTER) += vmaster.o snd-$(CONFIG_SND_KCTL_JACK) += ctljack.o snd-$(CONFIG_SND_JACK) += jack.o -snd-pcm-objs := pcm.o pcm_native.o pcm_lib.o pcm_timer.o pcm_misc.o \ - pcm_memory.o +snd-pcm-y := pcm.o pcm_native.o pcm_lib.o pcm_timer.o pcm_misc.o \ + pcm_memory.o memalloc.o +snd-pcm-$(CONFIG_SND_DMA_SGBUF) += sgbuf.o -snd-page-alloc-y := memalloc.o -snd-page-alloc-$(CONFIG_SND_DMA_SGBUF) += sgbuf.o +snd-pcm-dmaengine-objs := pcm_dmaengine.o snd-rawmidi-objs := rawmidi.o snd-timer-objs := timer.o @@ -29,7 +29,8 @@ obj-$(CONFIG_SND_HWDEP) += snd-hwdep.o obj-$(CONFIG_SND_TIMER) += snd-timer.o obj-$(CONFIG_SND_HRTIMER) += snd-hrtimer.o obj-$(CONFIG_SND_RTCTIMER) += snd-rtctimer.o -obj-$(CONFIG_SND_PCM) += snd-pcm.o snd-page-alloc.o +obj-$(CONFIG_SND_PCM) += snd-pcm.o +obj-$(CONFIG_SND_DMAENGINE_PCM) += snd-pcm-dmaengine.o obj-$(CONFIG_SND_RAWMIDI) += snd-rawmidi.o obj-$(CONFIG_SND_OSSEMUL) += oss/ diff --git a/sound/core/compress_offload.c b/sound/core/compress_offload.c index ad11dc99479..7403f348ed1 100644 --- a/sound/core/compress_offload.c +++ b/sound/core/compress_offload.c @@ -28,11 +28,13 @@ #include <linux/file.h> #include <linux/fs.h> #include <linux/list.h> +#include <linux/math64.h> #include <linux/mm.h> #include <linux/mutex.h> #include <linux/poll.h> #include <linux/slab.h> #include <linux/sched.h> +#include <linux/types.h> #include <linux/uio.h> #include <linux/uaccess.h> #include <linux/module.h> @@ -131,12 +133,24 @@ static int snd_compr_open(struct inode *inode, struct file *f) kfree(data); } snd_card_unref(compr->card); - return 0; + return ret; } static int snd_compr_free(struct inode *inode, struct file *f) { struct snd_compr_file *data = f->private_data; + struct snd_compr_runtime *runtime = data->stream.runtime; + + switch (runtime->state) { + case SNDRV_PCM_STATE_RUNNING: + case SNDRV_PCM_STATE_DRAINING: + case SNDRV_PCM_STATE_PAUSED: + data->stream.ops->trigger(&data->stream, SNDRV_PCM_TRIGGER_STOP); + break; + default: + break; + } + data->stream.ops->free(&data->stream); kfree(data->stream.runtime->buffer); kfree(data->stream.runtime); @@ -144,31 +158,31 @@ static int snd_compr_free(struct inode *inode, struct file *f) return 0; } -static void snd_compr_update_tstamp(struct snd_compr_stream *stream, +static int snd_compr_update_tstamp(struct snd_compr_stream *stream, struct snd_compr_tstamp *tstamp) { if (!stream->ops->pointer) - return; + return -ENOTSUPP; stream->ops->pointer(stream, tstamp); pr_debug("dsp consumed till %d total %d bytes\n", tstamp->byte_offset, tstamp->copied_total); - stream->runtime->hw_pointer = tstamp->byte_offset; - stream->runtime->total_bytes_transferred = tstamp->copied_total; + if (stream->direction == SND_COMPRESS_PLAYBACK) + stream->runtime->total_bytes_transferred = tstamp->copied_total; + else + stream->runtime->total_bytes_available = tstamp->copied_total; + return 0; } static size_t snd_compr_calc_avail(struct snd_compr_stream *stream, struct snd_compr_avail *avail) { - long avail_calc; /*this needs to be signed variable */ - + memset(avail, 0, sizeof(*avail)); snd_compr_update_tstamp(stream, &avail->tstamp); - - /* FIXME: This needs to be different for capture stream, - available is # of compressed data, for playback it's - remainder of buffer */ + /* Still need to return avail even if tstamp can't be filled in */ if (stream->runtime->total_bytes_available == 0 && - stream->runtime->state == SNDRV_PCM_STATE_SETUP) { + stream->runtime->state == SNDRV_PCM_STATE_SETUP && + stream->direction == SND_COMPRESS_PLAYBACK) { pr_debug("detected init and someone forgot to do a write\n"); return stream->runtime->buffer_size; } @@ -177,26 +191,22 @@ static size_t snd_compr_calc_avail(struct snd_compr_stream *stream, stream->runtime->total_bytes_transferred); if (stream->runtime->total_bytes_available == stream->runtime->total_bytes_transferred) { - pr_debug("both pointers are same, returning full avail\n"); - return stream->runtime->buffer_size; + if (stream->direction == SND_COMPRESS_PLAYBACK) { + pr_debug("both pointers are same, returning full avail\n"); + return stream->runtime->buffer_size; + } else { + pr_debug("both pointers are same, returning no avail\n"); + return 0; + } } - /* FIXME: this routine isn't consistent, in one test we use - * cumulative values and in the other byte offsets. Do we - * really need the byte offsets if the cumulative values have - * been updated? In the PCM interface app_ptr and hw_ptr are - * already cumulative */ + avail->avail = stream->runtime->total_bytes_available - + stream->runtime->total_bytes_transferred; + if (stream->direction == SND_COMPRESS_PLAYBACK) + avail->avail = stream->runtime->buffer_size - avail->avail; - avail_calc = stream->runtime->buffer_size - - (stream->runtime->app_pointer - stream->runtime->hw_pointer); - pr_debug("calc avail as %ld, app_ptr %lld, hw+ptr %lld\n", avail_calc, - stream->runtime->app_pointer, - stream->runtime->hw_pointer); - if (avail_calc >= stream->runtime->buffer_size) - avail_calc -= stream->runtime->buffer_size; - pr_debug("ret avail as %ld\n", avail_calc); - avail->avail = avail_calc; - return avail_calc; + pr_debug("ret avail as %lld\n", avail->avail); + return avail->avail; } static inline size_t snd_compr_get_avail(struct snd_compr_stream *stream) @@ -227,21 +237,24 @@ static int snd_compr_write_data(struct snd_compr_stream *stream, void *dstn; size_t copy; struct snd_compr_runtime *runtime = stream->runtime; + /* 64-bit Modulus */ + u64 app_pointer = div64_u64(runtime->total_bytes_available, + runtime->buffer_size); + app_pointer = runtime->total_bytes_available - + (app_pointer * runtime->buffer_size); - dstn = runtime->buffer + runtime->app_pointer; + dstn = runtime->buffer + app_pointer; pr_debug("copying %ld at %lld\n", - (unsigned long)count, runtime->app_pointer); - if (count < runtime->buffer_size - runtime->app_pointer) { + (unsigned long)count, app_pointer); + if (count < runtime->buffer_size - app_pointer) { if (copy_from_user(dstn, buf, count)) return -EFAULT; - runtime->app_pointer += count; } else { - copy = runtime->buffer_size - runtime->app_pointer; + copy = runtime->buffer_size - app_pointer; if (copy_from_user(dstn, buf, copy)) return -EFAULT; if (copy_from_user(runtime->buffer, buf + copy, count - copy)) return -EFAULT; - runtime->app_pointer = count - copy; } /* if DSP cares, let it know data has been written */ if (stream->ops->ack) @@ -275,10 +288,12 @@ static ssize_t snd_compr_write(struct file *f, const char __user *buf, if (avail > count) avail = count; - if (stream->ops->copy) - retval = stream->ops->copy(stream, buf, avail); - else + if (stream->ops->copy) { + char __user* cbuf = (char __user*)buf; + retval = stream->ops->copy(stream, cbuf, avail); + } else { retval = snd_compr_write_data(stream, buf, avail); + } if (retval > 0) stream->runtime->total_bytes_available += retval; @@ -297,7 +312,49 @@ static ssize_t snd_compr_write(struct file *f, const char __user *buf, static ssize_t snd_compr_read(struct file *f, char __user *buf, size_t count, loff_t *offset) { - return -ENXIO; + struct snd_compr_file *data = f->private_data; + struct snd_compr_stream *stream; + size_t avail; + int retval; + + if (snd_BUG_ON(!data)) + return -EFAULT; + + stream = &data->stream; + mutex_lock(&stream->device->lock); + + /* read is allowed when stream is running, paused, draining and setup + * (yes setup is state which we transition to after stop, so if user + * wants to read data after stop we allow that) + */ + switch (stream->runtime->state) { + case SNDRV_PCM_STATE_OPEN: + case SNDRV_PCM_STATE_PREPARED: + case SNDRV_PCM_STATE_XRUN: + case SNDRV_PCM_STATE_SUSPENDED: + case SNDRV_PCM_STATE_DISCONNECTED: + retval = -EBADFD; + goto out; + } + + avail = snd_compr_get_avail(stream); + pr_debug("avail returned %ld\n", (unsigned long)avail); + /* calculate how much we can read from buffer */ + if (avail > count) + avail = count; + + if (stream->ops->copy) { + retval = stream->ops->copy(stream, buf, avail); + } else { + retval = -ENXIO; + goto out; + } + if (retval > 0) + stream->runtime->total_bytes_transferred += retval; + +out: + mutex_unlock(&stream->device->lock); + return retval; } static int snd_compr_mmap(struct file *f, struct vm_area_struct *vma) @@ -327,8 +384,7 @@ static unsigned int snd_compr_poll(struct file *f, poll_table *wait) return -EFAULT; mutex_lock(&stream->device->lock); - if (stream->runtime->state == SNDRV_PCM_STATE_PAUSED || - stream->runtime->state == SNDRV_PCM_STATE_OPEN) { + if (stream->runtime->state == SNDRV_PCM_STATE_OPEN) { retval = -EBADFD; goto out; } @@ -372,6 +428,7 @@ snd_compr_get_caps(struct snd_compr_stream *stream, unsigned long arg) if (!stream->ops->get_caps) return -ENXIO; + memset(&caps, 0, sizeof(caps)); retval = stream->ops->get_caps(stream, &caps); if (retval) goto out; @@ -390,7 +447,7 @@ snd_compr_get_codec_caps(struct snd_compr_stream *stream, unsigned long arg) if (!stream->ops->get_codec_caps) return -ENXIO; - caps = kmalloc(sizeof(*caps), GFP_KERNEL); + caps = kzalloc(sizeof(*caps), GFP_KERNEL); if (!caps) return -ENOMEM; @@ -444,9 +501,6 @@ static int snd_compress_check_input(struct snd_compr_params *params) if (params->codec.ch_in == 0 || params->codec.ch_out == 0) return -EINVAL; - if (!(params->codec.sample_rate & SNDRV_PCM_RATE_8000_192000)) - return -EINVAL; - return 0; } @@ -482,7 +536,14 @@ snd_compr_set_params(struct snd_compr_stream *stream, unsigned long arg) retval = stream->ops->set_params(stream, params); if (retval) goto out; - stream->runtime->state = SNDRV_PCM_STATE_SETUP; + + stream->metadata_set = false; + stream->next_track = false; + + if (stream->direction == SND_COMPRESS_PLAYBACK) + stream->runtime->state = SNDRV_PCM_STATE_SETUP; + else + stream->runtime->state = SNDRV_PCM_STATE_PREPARED; } else { return -EPERM; } @@ -500,7 +561,7 @@ snd_compr_get_params(struct snd_compr_stream *stream, unsigned long arg) if (!stream->ops->get_params) return -EBADFD; - params = kmalloc(sizeof(*params), GFP_KERNEL); + params = kzalloc(sizeof(*params), GFP_KERNEL); if (!params) return -ENOMEM; retval = stream->ops->get_params(stream, params); @@ -514,14 +575,60 @@ out: return retval; } +static int +snd_compr_get_metadata(struct snd_compr_stream *stream, unsigned long arg) +{ + struct snd_compr_metadata metadata; + int retval; + + if (!stream->ops->get_metadata) + return -ENXIO; + + if (copy_from_user(&metadata, (void __user *)arg, sizeof(metadata))) + return -EFAULT; + + retval = stream->ops->get_metadata(stream, &metadata); + if (retval != 0) + return retval; + + if (copy_to_user((void __user *)arg, &metadata, sizeof(metadata))) + return -EFAULT; + + return 0; +} + +static int +snd_compr_set_metadata(struct snd_compr_stream *stream, unsigned long arg) +{ + struct snd_compr_metadata metadata; + int retval; + + if (!stream->ops->set_metadata) + return -ENXIO; + /* + * we should allow parameter change only when stream has been + * opened not in other cases + */ + if (copy_from_user(&metadata, (void __user *)arg, sizeof(metadata))) + return -EFAULT; + + retval = stream->ops->set_metadata(stream, &metadata); + stream->metadata_set = true; + + return retval; +} + static inline int snd_compr_tstamp(struct snd_compr_stream *stream, unsigned long arg) { - struct snd_compr_tstamp tstamp; + struct snd_compr_tstamp tstamp = {0}; + int ret; - snd_compr_update_tstamp(stream, &tstamp); - return copy_to_user((struct snd_compr_tstamp __user *)arg, - &tstamp, sizeof(tstamp)) ? -EFAULT : 0; + ret = snd_compr_update_tstamp(stream, &tstamp); + if (ret == 0) + ret = copy_to_user((struct snd_compr_tstamp __user *)arg, + &tstamp, sizeof(tstamp)) ? -EFAULT : 0; + return ret; } static int snd_compr_pause(struct snd_compr_stream *stream) @@ -569,16 +676,48 @@ static int snd_compr_stop(struct snd_compr_stream *stream) return -EPERM; retval = stream->ops->trigger(stream, SNDRV_PCM_TRIGGER_STOP); if (!retval) { - stream->runtime->state = SNDRV_PCM_STATE_SETUP; - wake_up(&stream->runtime->sleep); - stream->runtime->hw_pointer = 0; - stream->runtime->app_pointer = 0; + snd_compr_drain_notify(stream); stream->runtime->total_bytes_available = 0; stream->runtime->total_bytes_transferred = 0; } return retval; } +static int snd_compress_wait_for_drain(struct snd_compr_stream *stream) +{ + int ret; + + /* + * We are called with lock held. So drop the lock while we wait for + * drain complete notfication from the driver + * + * It is expected that driver will notify the drain completion and then + * stream will be moved to SETUP state, even if draining resulted in an + * error. We can trigger next track after this. + */ + stream->runtime->state = SNDRV_PCM_STATE_DRAINING; + mutex_unlock(&stream->device->lock); + + /* we wait for drain to complete here, drain can return when + * interruption occurred, wait returned error or success. + * For the first two cases we don't do anything different here and + * return after waking up + */ + + ret = wait_event_interruptible(stream->runtime->sleep, + (stream->runtime->state != SNDRV_PCM_STATE_DRAINING)); + if (ret == -ERESTARTSYS) + pr_debug("wait aborted by a signal"); + else if (ret) + pr_debug("wait for drain failed with %d\n", ret); + + + wake_up(&stream->runtime->sleep); + mutex_lock(&stream->device->lock); + + return ret; +} + static int snd_compr_drain(struct snd_compr_stream *stream) { int retval; @@ -586,12 +725,58 @@ static int snd_compr_drain(struct snd_compr_stream *stream) if (stream->runtime->state == SNDRV_PCM_STATE_PREPARED || stream->runtime->state == SNDRV_PCM_STATE_SETUP) return -EPERM; + retval = stream->ops->trigger(stream, SND_COMPR_TRIGGER_DRAIN); - if (!retval) { - stream->runtime->state = SNDRV_PCM_STATE_DRAINING; + if (retval) { + pr_debug("SND_COMPR_TRIGGER_DRAIN failed %d\n", retval); wake_up(&stream->runtime->sleep); + return retval; } - return retval; + + return snd_compress_wait_for_drain(stream); +} + +static int snd_compr_next_track(struct snd_compr_stream *stream) +{ + int retval; + + /* only a running stream can transition to next track */ + if (stream->runtime->state != SNDRV_PCM_STATE_RUNNING) + return -EPERM; + + /* you can signal next track isf this is intended to be a gapless stream + * and current track metadata is set + */ + if (stream->metadata_set == false) + return -EPERM; + + retval = stream->ops->trigger(stream, SND_COMPR_TRIGGER_NEXT_TRACK); + if (retval != 0) + return retval; + stream->metadata_set = false; + stream->next_track = true; + return 0; +} + +static int snd_compr_partial_drain(struct snd_compr_stream *stream) +{ + int retval; + if (stream->runtime->state == SNDRV_PCM_STATE_PREPARED || + stream->runtime->state == SNDRV_PCM_STATE_SETUP) + return -EPERM; + /* stream can be drained only when next track has been signalled */ + if (stream->next_track == false) + return -EPERM; + + retval = stream->ops->trigger(stream, SND_COMPR_TRIGGER_PARTIAL_DRAIN); + if (retval) { + pr_debug("Partial drain returned failure\n"); + wake_up(&stream->runtime->sleep); + return retval; + } + + stream->next_track = false; + return snd_compress_wait_for_drain(stream); } static long snd_compr_ioctl(struct file *f, unsigned int cmd, unsigned long arg) @@ -608,7 +793,7 @@ static long snd_compr_ioctl(struct file *f, unsigned int cmd, unsigned long arg) mutex_lock(&stream->device->lock); switch (_IOC_NR(cmd)) { case _IOC_NR(SNDRV_COMPRESS_IOCTL_VERSION): - put_user(SNDRV_COMPRESS_VERSION, + retval = put_user(SNDRV_COMPRESS_VERSION, (int __user *)arg) ? -EFAULT : 0; break; case _IOC_NR(SNDRV_COMPRESS_GET_CAPS): @@ -623,6 +808,12 @@ static long snd_compr_ioctl(struct file *f, unsigned int cmd, unsigned long arg) case _IOC_NR(SNDRV_COMPRESS_GET_PARAMS): retval = snd_compr_get_params(stream, arg); break; + case _IOC_NR(SNDRV_COMPRESS_SET_METADATA): + retval = snd_compr_set_metadata(stream, arg); + break; + case _IOC_NR(SNDRV_COMPRESS_GET_METADATA): + retval = snd_compr_get_metadata(stream, arg); + break; case _IOC_NR(SNDRV_COMPRESS_TSTAMP): retval = snd_compr_tstamp(stream, arg); break; @@ -644,6 +835,13 @@ static long snd_compr_ioctl(struct file *f, unsigned int cmd, unsigned long arg) case _IOC_NR(SNDRV_COMPRESS_DRAIN): retval = snd_compr_drain(stream); break; + case _IOC_NR(SNDRV_COMPRESS_PARTIAL_DRAIN): + retval = snd_compr_partial_drain(stream); + break; + case _IOC_NR(SNDRV_COMPRESS_NEXT_TRACK): + retval = snd_compr_next_track(stream); + break; + } mutex_unlock(&stream->device->lock); return retval; @@ -689,7 +887,8 @@ static int snd_compress_dev_disconnect(struct snd_device *device) struct snd_compr *compr; compr = device->device_data; - snd_unregister_device(compr->direction, compr->card, compr->device); + snd_unregister_device(SNDRV_DEVICE_TYPE_COMPRESS, compr->card, + compr->device); return 0; } diff --git a/sound/core/control.c b/sound/core/control.c index 8c7c2c9bba6..f0b0e14497a 100644 --- a/sound/core/control.c +++ b/sound/core/control.c @@ -151,7 +151,7 @@ void snd_ctl_notify(struct snd_card *card, unsigned int mask, if (snd_BUG_ON(!card || !id)) return; read_lock(&card->ctl_files_rwlock); -#if defined(CONFIG_SND_MIXER_OSS) || defined(CONFIG_SND_MIXER_OSS_MODULE) +#if IS_ENABLED(CONFIG_SND_MIXER_OSS) card->mixer_oss_change_count++; #endif list_for_each_entry(ctl, &card->ctl_files, list) { @@ -170,7 +170,7 @@ void snd_ctl_notify(struct snd_card *card, unsigned int mask, ev->mask = mask; list_add_tail(&ev->list, &ctl->events); } else { - snd_printk(KERN_ERR "No memory available to allocate event\n"); + dev_err(card->dev, "No memory available to allocate event\n"); } _found: wake_up(&ctl->change_sleep); @@ -190,7 +190,7 @@ EXPORT_SYMBOL(snd_ctl_notify); * Allocates a new struct snd_kcontrol instance and copies the given template * to the new instance. It does not copy volatile data (access). * - * Returns the pointer of the new instance, or NULL on failure. + * Return: The pointer of the new instance, or %NULL on failure. */ static struct snd_kcontrol *snd_ctl_new(struct snd_kcontrol *control, unsigned int access) @@ -206,7 +206,7 @@ static struct snd_kcontrol *snd_ctl_new(struct snd_kcontrol *control, kctl = kzalloc(sizeof(*kctl) + sizeof(struct snd_kcontrol_volatile) * control->count, GFP_KERNEL); if (kctl == NULL) { - snd_printk(KERN_ERR "Cannot allocate control instance\n"); + pr_err("ALSA: Cannot allocate control instance\n"); return NULL; } *kctl = *control; @@ -224,7 +224,7 @@ static struct snd_kcontrol *snd_ctl_new(struct snd_kcontrol *control, * template. When the access field of ncontrol is 0, it's assumed as * READWRITE access. When the count field is 0, it's assumes as one. * - * Returns the pointer of the newly generated instance, or NULL on failure. + * Return: The pointer of the newly generated instance, or %NULL on failure. */ struct snd_kcontrol *snd_ctl_new1(const struct snd_kcontrol_new *ncontrol, void *private_data) @@ -241,9 +241,8 @@ struct snd_kcontrol *snd_ctl_new1(const struct snd_kcontrol_new *ncontrol, if (ncontrol->name) { strlcpy(kctl.id.name, ncontrol->name, sizeof(kctl.id.name)); if (strcmp(ncontrol->name, kctl.id.name) != 0) - snd_printk(KERN_WARNING - "Control name '%s' truncated to '%s'\n", - ncontrol->name, kctl.id.name); + pr_warn("ALSA: Control name '%s' truncated to '%s'\n", + ncontrol->name, kctl.id.name); } kctl.id.index = ncontrol->index; kctl.count = ncontrol->count ? ncontrol->count : 1; @@ -289,6 +288,10 @@ static bool snd_ctl_remove_numid_conflict(struct snd_card *card, { struct snd_kcontrol *kctl; + /* Make sure that the ids assigned to the control do not wrap around */ + if (card->last_numid >= UINT_MAX - count) + card->last_numid = 0; + list_for_each_entry(kctl, &card->controls, list) { if (kctl->id.numid < card->last_numid + 1 + count && kctl->id.numid + kctl->count > card->last_numid + 1) { @@ -306,7 +309,7 @@ static int snd_ctl_find_hole(struct snd_card *card, unsigned int count) while (snd_ctl_remove_numid_conflict(card, count)) { if (--iter == 0) { /* this situation is very unlikely */ - snd_printk(KERN_ERR "unable to allocate new control numid\n"); + dev_err(card->dev, "unable to allocate new control numid\n"); return -ENOMEM; } } @@ -322,14 +325,16 @@ static int snd_ctl_find_hole(struct snd_card *card, unsigned int count) * snd_ctl_new1() to the given card. Assigns also an unique * numid used for fast search. * - * Returns zero if successful, or a negative error code on failure. - * * It frees automatically the control which cannot be added. + * + * Return: Zero if successful, or a negative error code on failure. + * */ int snd_ctl_add(struct snd_card *card, struct snd_kcontrol *kcontrol) { struct snd_ctl_elem_id id; unsigned int idx; + unsigned int count; int err = -EINVAL; if (! kcontrol) @@ -337,10 +342,13 @@ int snd_ctl_add(struct snd_card *card, struct snd_kcontrol *kcontrol) if (snd_BUG_ON(!card || !kcontrol->info)) goto error; id = kcontrol->id; + if (id.index > UINT_MAX - kcontrol->count) + goto error; + down_write(&card->controls_rwsem); if (snd_ctl_find_id(card, &id)) { up_write(&card->controls_rwsem); - snd_printd(KERN_ERR "control %i:%i:%i:%s:%i is already present\n", + dev_err(card->dev, "control %i:%i:%i:%s:%i is already present\n", id.iface, id.device, id.subdevice, @@ -358,8 +366,9 @@ int snd_ctl_add(struct snd_card *card, struct snd_kcontrol *kcontrol) card->controls_count += kcontrol->count; kcontrol->id.numid = card->last_numid + 1; card->last_numid += kcontrol->count; + count = kcontrol->count; up_write(&card->controls_rwsem); - for (idx = 0; idx < kcontrol->count; idx++, id.index++, id.numid++) + for (idx = 0; idx < count; idx++, id.index++, id.numid++) snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_ADD, &id); return 0; @@ -380,14 +389,15 @@ EXPORT_SYMBOL(snd_ctl_add); * and the add_on_replace flag is set, the control is added. If the * control exists, it is destroyed first. * - * Returns zero if successful, or a negative error code on failure. - * * It frees automatically the control which cannot be added or replaced. + * + * Return: Zero if successful, or a negative error code on failure. */ int snd_ctl_replace(struct snd_card *card, struct snd_kcontrol *kcontrol, bool add_on_replace) { struct snd_ctl_elem_id id; + unsigned int count; unsigned int idx; struct snd_kcontrol *old; int ret; @@ -423,8 +433,9 @@ add: card->controls_count += kcontrol->count; kcontrol->id.numid = card->last_numid + 1; card->last_numid += kcontrol->count; + count = kcontrol->count; up_write(&card->controls_rwsem); - for (idx = 0; idx < kcontrol->count; idx++, id.index++, id.numid++) + for (idx = 0; idx < count; idx++, id.index++, id.numid++) snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_ADD, &id); return 0; @@ -442,8 +453,8 @@ EXPORT_SYMBOL(snd_ctl_replace); * Removes the control from the card and then releases the instance. * You don't need to call snd_ctl_free_one(). You must be in * the write lock - down_write(&card->controls_rwsem). - * - * Returns 0 if successful, or a negative error code on failure. + * + * Return: 0 if successful, or a negative error code on failure. */ int snd_ctl_remove(struct snd_card *card, struct snd_kcontrol *kcontrol) { @@ -470,8 +481,8 @@ EXPORT_SYMBOL(snd_ctl_remove); * * Finds the control instance with the given id, removes it from the * card list and releases it. - * - * Returns 0 if successful, or a negative error code on failure. + * + * Return: 0 if successful, or a negative error code on failure. */ int snd_ctl_remove_id(struct snd_card *card, struct snd_ctl_elem_id *id) { @@ -498,8 +509,8 @@ EXPORT_SYMBOL(snd_ctl_remove_id); * * Finds the control instance with the given id, removes it from the * card list and releases it. - * - * Returns 0 if successful, or a negative error code on failure. + * + * Return: 0 if successful, or a negative error code on failure. */ static int snd_ctl_remove_user_ctl(struct snd_ctl_file * file, struct snd_ctl_elem_id *id) @@ -541,7 +552,7 @@ error: * Finds the control instance with the given id, and activate or * inactivate the control together with notification, if changed. * - * Returns 0 if unchanged, 1 if changed, or a negative error code on failure. + * Return: 0 if unchanged, 1 if changed, or a negative error code on failure. */ int snd_ctl_activate_id(struct snd_card *card, struct snd_ctl_elem_id *id, int active) @@ -587,7 +598,7 @@ EXPORT_SYMBOL_GPL(snd_ctl_activate_id); * Finds the control with the old id from the card, and replaces the * id with the new one. * - * Returns zero if successful, or a negative error code on failure. + * Return: Zero if successful, or a negative error code on failure. */ int snd_ctl_rename_id(struct snd_card *card, struct snd_ctl_elem_id *src_id, struct snd_ctl_elem_id *dst_id) @@ -616,10 +627,11 @@ EXPORT_SYMBOL(snd_ctl_rename_id); * * Finds the control instance with the given number-id from the card. * - * Returns the pointer of the instance if found, or NULL if not. - * * The caller must down card->controls_rwsem before calling this function * (if the race condition can happen). + * + * Return: The pointer of the instance if found, or %NULL if not. + * */ struct snd_kcontrol *snd_ctl_find_numid(struct snd_card *card, unsigned int numid) { @@ -643,10 +655,11 @@ EXPORT_SYMBOL(snd_ctl_find_numid); * * Finds the control instance with the given id from the card. * - * Returns the pointer of the instance if found, or NULL if not. - * * The caller must down card->controls_rwsem before calling this function * (if the race condition can happen). + * + * Return: The pointer of the instance if found, or %NULL if not. + * */ struct snd_kcontrol *snd_ctl_find_id(struct snd_card *card, struct snd_ctl_elem_id *id) @@ -895,9 +908,9 @@ static int snd_ctl_elem_write(struct snd_card *card, struct snd_ctl_file *file, result = kctl->put(kctl, control); } if (result > 0) { + struct snd_ctl_elem_id id = control->id; up_read(&card->controls_rwsem); - snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, - &control->id); + snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &id); return 0; } } @@ -989,6 +1002,7 @@ static int snd_ctl_elem_unlock(struct snd_ctl_file *file, struct user_element { struct snd_ctl_elem_info info; + struct snd_card *card; void *elem_data; /* element data */ unsigned long elem_data_size; /* size of element data in bytes */ void *tlv_data; /* TLV data */ @@ -1032,7 +1046,9 @@ static int snd_ctl_elem_user_get(struct snd_kcontrol *kcontrol, { struct user_element *ue = kcontrol->private_data; + mutex_lock(&ue->card->user_ctl_lock); memcpy(&ucontrol->value, ue->elem_data, ue->elem_data_size); + mutex_unlock(&ue->card->user_ctl_lock); return 0; } @@ -1041,10 +1057,12 @@ static int snd_ctl_elem_user_put(struct snd_kcontrol *kcontrol, { int change; struct user_element *ue = kcontrol->private_data; - + + mutex_lock(&ue->card->user_ctl_lock); change = memcmp(&ucontrol->value, ue->elem_data, ue->elem_data_size) != 0; if (change) memcpy(ue->elem_data, &ucontrol->value, ue->elem_data_size); + mutex_unlock(&ue->card->user_ctl_lock); return change; } @@ -1064,19 +1082,32 @@ static int snd_ctl_elem_user_tlv(struct snd_kcontrol *kcontrol, new_data = memdup_user(tlv, size); if (IS_ERR(new_data)) return PTR_ERR(new_data); + mutex_lock(&ue->card->user_ctl_lock); change = ue->tlv_data_size != size; if (!change) change = memcmp(ue->tlv_data, new_data, size); kfree(ue->tlv_data); ue->tlv_data = new_data; ue->tlv_data_size = size; + mutex_unlock(&ue->card->user_ctl_lock); } else { - if (! ue->tlv_data_size || ! ue->tlv_data) - return -ENXIO; - if (size < ue->tlv_data_size) - return -ENOSPC; + int ret = 0; + + mutex_lock(&ue->card->user_ctl_lock); + if (!ue->tlv_data_size || !ue->tlv_data) { + ret = -ENXIO; + goto err_unlock; + } + if (size < ue->tlv_data_size) { + ret = -ENOSPC; + goto err_unlock; + } if (copy_to_user(tlv, ue->tlv_data, ue->tlv_data_size)) - return -EFAULT; + ret = -EFAULT; +err_unlock: + mutex_unlock(&ue->card->user_ctl_lock); + if (ret) + return ret; } return change; } @@ -1134,8 +1165,6 @@ static int snd_ctl_elem_add(struct snd_ctl_file *file, struct user_element *ue; int idx, err; - if (!replace && card->user_ctl_count >= MAX_USER_CONTROLS) - return -ENOMEM; if (info->count < 1) return -EINVAL; access = info->access == 0 ? SNDRV_CTL_ELEM_ACCESS_READWRITE : @@ -1144,21 +1173,16 @@ static int snd_ctl_elem_add(struct snd_ctl_file *file, SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE)); info->id.numid = 0; memset(&kctl, 0, sizeof(kctl)); - down_write(&card->controls_rwsem); - _kctl = snd_ctl_find_id(card, &info->id); - err = 0; - if (_kctl) { - if (replace) - err = snd_ctl_remove(card, _kctl); - else - err = -EBUSY; - } else { - if (replace) - err = -ENOENT; + + if (replace) { + err = snd_ctl_remove_user_ctl(file, &info->id); + if (err) + return err; } - up_write(&card->controls_rwsem); - if (err < 0) - return err; + + if (card->user_ctl_count >= MAX_USER_CONTROLS) + return -ENOMEM; + memcpy(&kctl.id, &info->id, sizeof(info->id)); kctl.count = info->owner ? info->owner : 1; access |= SNDRV_CTL_ELEM_ACCESS_USER; @@ -1208,6 +1232,7 @@ static int snd_ctl_elem_add(struct snd_ctl_file *file, ue = kzalloc(sizeof(struct user_element) + private_size, GFP_KERNEL); if (ue == NULL) return -ENOMEM; + ue->card = card; ue->info = *info; ue->info.access = 0; ue->elem_data = (char *)ue + sizeof(*ue); @@ -1319,8 +1344,9 @@ static int snd_ctl_tlv_ioctl(struct snd_ctl_file *file, } err = kctl->tlv.c(kctl, op_flag, tlv.length, _tlv->tlv); if (err > 0) { + struct snd_ctl_elem_id id = kctl->id; up_read(&card->controls_rwsem); - snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_TLV, &kctl->id); + snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_TLV, &id); return 0; } } else { @@ -1403,7 +1429,7 @@ static long snd_ctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg } } up_read(&snd_ioctl_rwsem); - snd_printdd("unknown ioctl = 0x%x\n", cmd); + dev_dbg(card->dev, "unknown ioctl = 0x%x\n", cmd); return -ENOTTY; } @@ -1710,6 +1736,8 @@ EXPORT_SYMBOL(snd_ctl_boolean_stereo_info); * Sets all required fields in @info to their appropriate values. * If the control's accessibility is not the default (readable and writable), * the caller has to fill @info->access. + * + * Return: Zero. */ int snd_ctl_enum_info(struct snd_ctl_elem_info *info, unsigned int channels, unsigned int items, const char *const names[]) diff --git a/sound/core/control_compat.c b/sound/core/control_compat.c index 2bb95a7a880..b9c0910fb8c 100644 --- a/sound/core/control_compat.c +++ b/sound/core/control_compat.c @@ -247,7 +247,7 @@ static int copy_ctl_value_from_user(struct snd_card *card, } else { size = get_elem_size(type, count); if (size < 0) { - printk(KERN_ERR "snd_ioctl32_ctl_elem_value: unknown type %d\n", type); + dev_err(card->dev, "snd_ioctl32_ctl_elem_value: unknown type %d\n", type); return -EINVAL; } if (copy_from_user(data->value.bytes.data, diff --git a/sound/core/device.c b/sound/core/device.c index f03cb5444a5..41bec3075ae 100644 --- a/sound/core/device.c +++ b/sound/core/device.c @@ -39,31 +39,75 @@ * The data pointer plays a role as the identifier, too, so the * pointer address must be unique and unchanged. * - * Returns zero if successful, or a negative error code on failure. + * Return: Zero if successful, or a negative error code on failure. */ -int snd_device_new(struct snd_card *card, snd_device_type_t type, +int snd_device_new(struct snd_card *card, enum snd_device_type type, void *device_data, struct snd_device_ops *ops) { struct snd_device *dev; + struct list_head *p; if (snd_BUG_ON(!card || !device_data || !ops)) return -ENXIO; dev = kzalloc(sizeof(*dev), GFP_KERNEL); if (dev == NULL) { - snd_printk(KERN_ERR "Cannot allocate device\n"); + dev_err(card->dev, "Cannot allocate device, type=%d\n", type); return -ENOMEM; } + INIT_LIST_HEAD(&dev->list); dev->card = card; dev->type = type; dev->state = SNDRV_DEV_BUILD; dev->device_data = device_data; dev->ops = ops; - list_add(&dev->list, &card->devices); /* add to the head of list */ + + /* insert the entry in an incrementally sorted list */ + list_for_each_prev(p, &card->devices) { + struct snd_device *pdev = list_entry(p, struct snd_device, list); + if ((unsigned int)pdev->type <= (unsigned int)type) + break; + } + + list_add(&dev->list, p); return 0; } - EXPORT_SYMBOL(snd_device_new); +static int __snd_device_disconnect(struct snd_device *dev) +{ + if (dev->state == SNDRV_DEV_REGISTERED) { + if (dev->ops->dev_disconnect && + dev->ops->dev_disconnect(dev)) + dev_err(dev->card->dev, "device disconnect failure\n"); + dev->state = SNDRV_DEV_DISCONNECTED; + } + return 0; +} + +static void __snd_device_free(struct snd_device *dev) +{ + /* unlink */ + list_del(&dev->list); + + __snd_device_disconnect(dev); + if (dev->ops->dev_free) { + if (dev->ops->dev_free(dev)) + dev_err(dev->card->dev, "device free failure\n"); + } + kfree(dev); +} + +static struct snd_device *look_for_dev(struct snd_card *card, void *device_data) +{ + struct snd_device *dev; + + list_for_each_entry(dev, &card->devices, list) + if (dev->device_data == device_data) + return dev; + + return NULL; +} + /** * snd_device_free - release the device from the card * @card: the card instance @@ -72,73 +116,33 @@ EXPORT_SYMBOL(snd_device_new); * Removes the device from the list on the card and invokes the * callbacks, dev_disconnect and dev_free, corresponding to the state. * Then release the device. - * - * Returns zero if successful, or a negative error code on failure or if the - * device not found. */ -int snd_device_free(struct snd_card *card, void *device_data) +void snd_device_free(struct snd_card *card, void *device_data) { struct snd_device *dev; if (snd_BUG_ON(!card || !device_data)) - return -ENXIO; - list_for_each_entry(dev, &card->devices, list) { - if (dev->device_data != device_data) - continue; - /* unlink */ - list_del(&dev->list); - if (dev->state == SNDRV_DEV_REGISTERED && - dev->ops->dev_disconnect) - if (dev->ops->dev_disconnect(dev)) - snd_printk(KERN_ERR - "device disconnect failure\n"); - if (dev->ops->dev_free) { - if (dev->ops->dev_free(dev)) - snd_printk(KERN_ERR "device free failure\n"); - } - kfree(dev); - return 0; - } - snd_printd("device free %p (from %pF), not found\n", device_data, - __builtin_return_address(0)); - return -ENXIO; + return; + dev = look_for_dev(card, device_data); + if (dev) + __snd_device_free(dev); + else + dev_dbg(card->dev, "device free %p (from %pF), not found\n", + device_data, __builtin_return_address(0)); } - EXPORT_SYMBOL(snd_device_free); -/** - * snd_device_disconnect - disconnect the device - * @card: the card instance - * @device_data: the data pointer to disconnect - * - * Turns the device into the disconnection state, invoking - * dev_disconnect callback, if the device was already registered. - * - * Usually called from snd_card_disconnect(). - * - * Returns zero if successful, or a negative error code on failure or if the - * device not found. - */ -int snd_device_disconnect(struct snd_card *card, void *device_data) +static int __snd_device_register(struct snd_device *dev) { - struct snd_device *dev; - - if (snd_BUG_ON(!card || !device_data)) - return -ENXIO; - list_for_each_entry(dev, &card->devices, list) { - if (dev->device_data != device_data) - continue; - if (dev->state == SNDRV_DEV_REGISTERED && - dev->ops->dev_disconnect) { - if (dev->ops->dev_disconnect(dev)) - snd_printk(KERN_ERR "device disconnect failure\n"); - dev->state = SNDRV_DEV_DISCONNECTED; + if (dev->state == SNDRV_DEV_BUILD) { + if (dev->ops->dev_register) { + int err = dev->ops->dev_register(dev); + if (err < 0) + return err; } - return 0; + dev->state = SNDRV_DEV_REGISTERED; } - snd_printd("device disconnect %p (from %pF), not found\n", device_data, - __builtin_return_address(0)); - return -ENXIO; + return 0; } /** @@ -151,32 +155,21 @@ int snd_device_disconnect(struct snd_card *card, void *device_data) * but it can be called later if any new devices are created after * invocation of snd_card_register(). * - * Returns zero if successful, or a negative error code on failure or if the + * Return: Zero if successful, or a negative error code on failure or if the * device not found. */ int snd_device_register(struct snd_card *card, void *device_data) { struct snd_device *dev; - int err; if (snd_BUG_ON(!card || !device_data)) return -ENXIO; - list_for_each_entry(dev, &card->devices, list) { - if (dev->device_data != device_data) - continue; - if (dev->state == SNDRV_DEV_BUILD && dev->ops->dev_register) { - if ((err = dev->ops->dev_register(dev)) < 0) - return err; - dev->state = SNDRV_DEV_REGISTERED; - return 0; - } - snd_printd("snd_device_register busy\n"); - return -EBUSY; - } + dev = look_for_dev(card, device_data); + if (dev) + return __snd_device_register(dev); snd_BUG(); return -ENXIO; } - EXPORT_SYMBOL(snd_device_register); /* @@ -191,11 +184,9 @@ int snd_device_register_all(struct snd_card *card) if (snd_BUG_ON(!card)) return -ENXIO; list_for_each_entry(dev, &card->devices, list) { - if (dev->state == SNDRV_DEV_BUILD && dev->ops->dev_register) { - if ((err = dev->ops->dev_register(dev)) < 0) - return err; - dev->state = SNDRV_DEV_REGISTERED; - } + err = __snd_device_register(dev); + if (err < 0) + return err; } return 0; } @@ -211,8 +202,8 @@ int snd_device_disconnect_all(struct snd_card *card) if (snd_BUG_ON(!card)) return -ENXIO; - list_for_each_entry(dev, &card->devices, list) { - if (snd_device_disconnect(card, dev->device_data) < 0) + list_for_each_entry_reverse(dev, &card->devices, list) { + if (__snd_device_disconnect(dev) < 0) err = -ENXIO; } return err; @@ -222,24 +213,12 @@ int snd_device_disconnect_all(struct snd_card *card) * release all the devices on the card. * called from init.c */ -int snd_device_free_all(struct snd_card *card, snd_device_cmd_t cmd) +void snd_device_free_all(struct snd_card *card) { - struct snd_device *dev; - int err; - unsigned int range_low, range_high, type; + struct snd_device *dev, *next; if (snd_BUG_ON(!card)) - return -ENXIO; - range_low = (__force unsigned int)cmd * SNDRV_DEV_TYPE_RANGE_SIZE; - range_high = range_low + SNDRV_DEV_TYPE_RANGE_SIZE - 1; - __again: - list_for_each_entry(dev, &card->devices, list) { - type = (__force unsigned int)dev->type; - if (type >= range_low && type <= range_high) { - if ((err = snd_device_free(card, dev->device_data)) < 0) - return err; - goto __again; - } - } - return 0; + return; + list_for_each_entry_safe_reverse(dev, next, &card->devices, list) + __snd_device_free(dev); } diff --git a/sound/core/hrtimer.c b/sound/core/hrtimer.c index b8b31c433d6..886be7da989 100644 --- a/sound/core/hrtimer.c +++ b/sound/core/hrtimer.c @@ -126,8 +126,7 @@ static int __init snd_hrtimer_init(void) hrtimer_get_res(CLOCK_MONOTONIC, &tp); if (tp.tv_sec > 0 || !tp.tv_nsec) { - snd_printk(KERN_ERR - "snd-hrtimer: Invalid resolution %u.%09u", + pr_err("snd-hrtimer: Invalid resolution %u.%09u", (unsigned)tp.tv_sec, (unsigned)tp.tv_nsec); return -EINVAL; } diff --git a/sound/core/hwdep.c b/sound/core/hwdep.c index 3f7f6628cf7..69459e5f712 100644 --- a/sound/core/hwdep.c +++ b/sound/core/hwdep.c @@ -356,7 +356,7 @@ static const struct file_operations snd_hwdep_f_ops = * The callbacks (hwdep->ops) must be set on the returned instance * after this call manually by the caller. * - * Returns zero if successful, or a negative error code on failure. + * Return: Zero if successful, or a negative error code on failure. */ int snd_hwdep_new(struct snd_card *card, char *id, int device, struct snd_hwdep **rhwdep) @@ -375,7 +375,7 @@ int snd_hwdep_new(struct snd_card *card, char *id, int device, *rhwdep = NULL; hwdep = kzalloc(sizeof(*hwdep), GFP_KERNEL); if (hwdep == NULL) { - snd_printk(KERN_ERR "hwdep: cannot allocate\n"); + dev_err(card->dev, "hwdep: cannot allocate\n"); return -ENOMEM; } hwdep->card = card; @@ -395,6 +395,7 @@ int snd_hwdep_new(struct snd_card *card, char *id, int device, *rhwdep = hwdep; return 0; } +EXPORT_SYMBOL(snd_hwdep_new); static int snd_hwdep_free(struct snd_hwdep *hwdep) { @@ -415,37 +416,61 @@ static int snd_hwdep_dev_free(struct snd_device *device) static int snd_hwdep_dev_register(struct snd_device *device) { struct snd_hwdep *hwdep = device->device_data; + struct snd_card *card = hwdep->card; + struct device *dev; int err; char name[32]; mutex_lock(®ister_mutex); - if (snd_hwdep_search(hwdep->card, hwdep->device)) { + if (snd_hwdep_search(card, hwdep->device)) { mutex_unlock(®ister_mutex); return -EBUSY; } list_add_tail(&hwdep->list, &snd_hwdep_devices); sprintf(name, "hwC%iD%i", hwdep->card->number, hwdep->device); - if ((err = snd_register_device(SNDRV_DEVICE_TYPE_HWDEP, - hwdep->card, hwdep->device, - &snd_hwdep_f_ops, hwdep, name)) < 0) { - snd_printk(KERN_ERR "unable to register hardware dependent device %i:%i\n", - hwdep->card->number, hwdep->device); + dev = hwdep->dev; + if (!dev) + dev = snd_card_get_device_link(hwdep->card); + err = snd_register_device_for_dev(SNDRV_DEVICE_TYPE_HWDEP, + hwdep->card, hwdep->device, + &snd_hwdep_f_ops, hwdep, name, dev); + if (err < 0) { + dev_err(dev, + "unable to register hardware dependent device %i:%i\n", + card->number, hwdep->device); list_del(&hwdep->list); mutex_unlock(®ister_mutex); return err; } + + if (hwdep->groups) { + struct device *d = snd_get_device(SNDRV_DEVICE_TYPE_HWDEP, + hwdep->card, hwdep->device); + if (d) { + if (hwdep->private_data) + dev_set_drvdata(d, hwdep->private_data); + err = sysfs_create_groups(&d->kobj, hwdep->groups); + if (err < 0) + dev_warn(dev, + "hwdep %d:%d: cannot create sysfs groups\n", + card->number, hwdep->device); + put_device(d); + } + } + #ifdef CONFIG_SND_OSSEMUL hwdep->ossreg = 0; if (hwdep->oss_type >= 0) { if ((hwdep->oss_type == SNDRV_OSS_DEVICE_TYPE_DMFM) && (hwdep->device != 0)) { - snd_printk (KERN_WARNING "only hwdep device 0 can be registered as OSS direct FM device!\n"); + dev_warn(dev, + "only hwdep device 0 can be registered as OSS direct FM device!\n"); } else { if (snd_register_oss_device(hwdep->oss_type, - hwdep->card, hwdep->device, - &snd_hwdep_f_ops, hwdep, - hwdep->oss_dev) < 0) { - snd_printk(KERN_ERR "unable to register OSS compatibility device %i:%i\n", - hwdep->card->number, hwdep->device); + card, hwdep->device, + &snd_hwdep_f_ops, hwdep) < 0) { + dev_err(dev, + "unable to register OSS compatibility device %i:%i\n", + card->number, hwdep->device); } else hwdep->ossreg = 1; } @@ -543,5 +568,3 @@ static void __exit alsa_hwdep_exit(void) module_init(alsa_hwdep_init) module_exit(alsa_hwdep_exit) - -EXPORT_SYMBOL(snd_hwdep_new); diff --git a/sound/core/info.c b/sound/core/info.c index 6b368d25073..051d55b0552 100644 --- a/sound/core/info.c +++ b/sound/core/info.c @@ -89,7 +89,7 @@ static int resize_info_buffer(struct snd_info_buffer *buffer, char *nbuf; nsize = PAGE_ALIGN(nsize); - nbuf = krealloc(buffer->buffer, nsize, GFP_KERNEL); + nbuf = krealloc(buffer->buffer, nsize, GFP_KERNEL | __GFP_ZERO); if (! nbuf) return -ENOMEM; @@ -105,7 +105,7 @@ static int resize_info_buffer(struct snd_info_buffer *buffer, * * Outputs the string on the procfs buffer just like printf(). * - * Returns the size of output string. + * Return: The size of output string, or a negative error code. */ int snd_iprintf(struct snd_info_buffer *buffer, const char *fmt, ...) { @@ -153,13 +153,6 @@ EXPORT_SYMBOL(snd_seq_root); struct snd_info_entry *snd_oss_root; #endif -static void snd_remove_proc_entry(struct proc_dir_entry *parent, - struct proc_dir_entry *de) -{ - if (de) - remove_proc_entry(de->name, parent); -} - static loff_t snd_info_entry_llseek(struct file *file, loff_t offset, int orig) { struct snd_info_private_data *data; @@ -310,12 +303,10 @@ static int snd_info_entry_open(struct inode *inode, struct file *file) struct snd_info_entry *entry; struct snd_info_private_data *data; struct snd_info_buffer *buffer; - struct proc_dir_entry *p; int mode, err; mutex_lock(&info_mutex); - p = PDE(inode); - entry = p == NULL ? NULL : (struct snd_info_entry *)p->data; + entry = PDE_DATA(inode); if (entry == NULL || ! entry->p) { mutex_unlock(&info_mutex); return -ENODEV; @@ -353,7 +344,7 @@ static int snd_info_entry_open(struct inode *inode, struct file *file) goto __nomem; data->rbuffer = buffer; buffer->len = PAGE_SIZE; - buffer->buffer = kmalloc(buffer->len, GFP_KERNEL); + buffer->buffer = kzalloc(buffer->len, GFP_KERNEL); if (buffer->buffer == NULL) goto __nomem; } @@ -427,9 +418,14 @@ static int snd_info_entry_release(struct inode *inode, struct file *file) if (entry->c.text.write) { entry->c.text.write(entry, data->wbuffer); if (data->wbuffer->error) { - snd_printk(KERN_WARNING "data write error to %s (%i)\n", - entry->name, - data->wbuffer->error); + if (entry->card) + dev_warn(entry->card->dev, "info: data write error to %s (%i)\n", + entry->name, + data->wbuffer->error); + else + pr_warn("ALSA: info: data write error to %s (%i)\n", + entry->name, + data->wbuffer->error); } } kfree(data->wbuffer->buffer); @@ -496,7 +492,7 @@ static long snd_info_entry_ioctl(struct file *file, unsigned int cmd, static int snd_info_entry_mmap(struct file *file, struct vm_area_struct *vma) { - struct inode *inode = file->f_path.dentry->d_inode; + struct inode *inode = file_inode(file); struct snd_info_private_data *data; struct snd_info_entry *entry; @@ -549,7 +545,7 @@ int __init snd_info_init(void) snd_oss_root = entry; } #endif -#if defined(CONFIG_SND_SEQUENCER) || defined(CONFIG_SND_SEQUENCER_MODULE) +#if IS_ENABLED(CONFIG_SND_SEQUENCER) { struct snd_info_entry *entry; if ((entry = snd_info_create_module_entry(THIS_MODULE, "seq", NULL)) == NULL) @@ -576,13 +572,13 @@ int __exit snd_info_done(void) snd_minor_info_done(); snd_info_version_done(); if (snd_proc_root) { -#if defined(CONFIG_SND_SEQUENCER) || defined(CONFIG_SND_SEQUENCER_MODULE) +#if IS_ENABLED(CONFIG_SND_SEQUENCER) snd_info_free_entry(snd_seq_root); #endif #ifdef CONFIG_SND_OSSEMUL snd_info_free_entry(snd_oss_root); #endif - snd_remove_proc_entry(NULL, snd_proc_root); + proc_remove(snd_proc_root); } return 0; } @@ -644,7 +640,7 @@ void snd_info_card_id_change(struct snd_card *card) { mutex_lock(&info_mutex); if (card->proc_root_link) { - snd_remove_proc_entry(snd_proc_root, card->proc_root_link); + proc_remove(card->proc_root_link); card->proc_root_link = NULL; } if (strcmp(card->id, card->proc_root->name)) @@ -663,10 +659,8 @@ void snd_info_card_disconnect(struct snd_card *card) if (!card) return; mutex_lock(&info_mutex); - if (card->proc_root_link) { - snd_remove_proc_entry(snd_proc_root, card->proc_root_link); - card->proc_root_link = NULL; - } + proc_remove(card->proc_root_link); + card->proc_root_link = NULL; if (card->proc_root) snd_info_disconnect(card->proc_root); mutex_unlock(&info_mutex); @@ -694,32 +688,27 @@ int snd_info_card_free(struct snd_card *card) * * Reads one line from the buffer and stores the string. * - * Returns zero if successful, or 1 if error or EOF. + * Return: Zero if successful, or 1 if error or EOF. */ int snd_info_get_line(struct snd_info_buffer *buffer, char *line, int len) { int c = -1; + if (snd_BUG_ON(!buffer || !buffer->buffer)) + return 1; if (len <= 0 || buffer->stop || buffer->error) return 1; - while (--len > 0) { + while (!buffer->stop) { c = buffer->buffer[buffer->curr++]; - if (c == '\n') { - if (buffer->curr >= buffer->size) - buffer->stop = 1; - break; - } - *line++ = c; - if (buffer->curr >= buffer->size) { + if (buffer->curr >= buffer->size) buffer->stop = 1; + if (c == '\n') break; + if (len) { + len--; + *line++ = c; } } - while (c != '\n' && !buffer->stop) { - c = buffer->buffer[buffer->curr++]; - if (buffer->curr >= buffer->size) - buffer->stop = 1; - } *line = '\0'; return 0; } @@ -735,7 +724,7 @@ EXPORT_SYMBOL(snd_info_get_line); * Parses the original string and copy a token to the given * string buffer. * - * Returns the updated pointer of the original string so that + * Return: The updated pointer of the original string so that * it can be used for the next call. */ const char *snd_info_get_str(char *dest, const char *src, int len) @@ -774,7 +763,7 @@ EXPORT_SYMBOL(snd_info_get_str); * Usually called from other functions such as * snd_info_create_card_entry(). * - * Returns the pointer of the new instance, or NULL on failure. + * Return: The pointer of the new instance, or %NULL on failure. */ static struct snd_info_entry *snd_info_create_entry(const char *name) { @@ -803,7 +792,7 @@ static struct snd_info_entry *snd_info_create_entry(const char *name) * * Creates a new info entry and assigns it to the given module. * - * Returns the pointer of the new instance, or NULL on failure. + * Return: The pointer of the new instance, or %NULL on failure. */ struct snd_info_entry *snd_info_create_module_entry(struct module * module, const char *name, @@ -827,7 +816,7 @@ EXPORT_SYMBOL(snd_info_create_module_entry); * * Creates a new info entry and assigns it to the given card. * - * Returns the pointer of the new instance, or NULL on failure. + * Return: The pointer of the new instance, or %NULL on failure. */ struct snd_info_entry *snd_info_create_card_entry(struct snd_card *card, const char *name, @@ -858,7 +847,7 @@ static void snd_info_disconnect(struct snd_info_entry *entry) list_del_init(&entry->list); root = entry->parent == NULL ? snd_proc_root : entry->parent->p; snd_BUG_ON(!root); - snd_remove_proc_entry(root, entry->p); + proc_remove(entry->p); entry->p = NULL; } @@ -893,7 +882,7 @@ static int snd_info_dev_register_entry(struct snd_device *device) * For releasing this entry, use snd_device_free() instead of * snd_info_free_entry(). * - * Returns zero if successful, or a negative error code on failure. + * Return: Zero if successful, or a negative error code on failure. */ int snd_card_proc_new(struct snd_card *card, const char *name, struct snd_info_entry **entryp) @@ -949,7 +938,7 @@ EXPORT_SYMBOL(snd_info_free_entry); * * Registers the proc info entry. * - * Returns zero if successful, or a negative error code on failure. + * Return: Zero if successful, or a negative error code on failure. */ int snd_info_register(struct snd_info_entry * entry) { @@ -959,15 +948,21 @@ int snd_info_register(struct snd_info_entry * entry) return -ENXIO; root = entry->parent == NULL ? snd_proc_root : entry->parent->p; mutex_lock(&info_mutex); - p = create_proc_entry(entry->name, entry->mode, root); - if (!p) { - mutex_unlock(&info_mutex); - return -ENOMEM; + if (S_ISDIR(entry->mode)) { + p = proc_mkdir_mode(entry->name, entry->mode, root); + if (!p) { + mutex_unlock(&info_mutex); + return -ENOMEM; + } + } else { + p = proc_create_data(entry->name, entry->mode, root, + &snd_info_entry_operations, entry); + if (!p) { + mutex_unlock(&info_mutex); + return -ENOMEM; + } + proc_set_size(p, entry->size); } - if (!S_ISDIR(entry->mode)) - p->proc_fops = &snd_info_entry_operations; - p->size = entry->size; - p->data = entry; entry->p = p; if (entry->parent) list_add_tail(&entry->list, &entry->parent->children); diff --git a/sound/core/init.c b/sound/core/init.c index 7b012d15c2c..7bdfd19e24a 100644 --- a/sound/core/init.c +++ b/sound/core/init.c @@ -28,6 +28,7 @@ #include <linux/time.h> #include <linux/ctype.h> #include <linux/pm.h> +#include <linux/completion.h> #include <sound/core.h> #include <sound/control.h> @@ -46,7 +47,8 @@ static LIST_HEAD(shutdown_files); static const struct file_operations snd_shutdown_f_ops; -static unsigned int snd_cards_lock; /* locked for registering/using */ +/* locked for registering/using */ +static DECLARE_BITMAP(snd_cards_lock, SNDRV_CARDS); struct snd_card *snd_cards[SNDRV_CARDS]; EXPORT_SYMBOL(snd_cards); @@ -65,7 +67,7 @@ static int module_slot_match(struct module *module, int idx) #ifdef MODULE const char *s1, *s2; - if (!module || !module->name || !slots[idx]) + if (!module || !*module->name || !slots[idx]) return 0; s1 = module->name; @@ -93,7 +95,7 @@ static int module_slot_match(struct module *module, int idx) return match; } -#if defined(CONFIG_SND_MIXER_OSS) || defined(CONFIG_SND_MIXER_OSS_MODULE) +#if IS_ENABLED(CONFIG_SND_MIXER_OSS) int (*snd_mixer_oss_notify_callback)(struct snd_card *card, int free_flag); EXPORT_SYMBOL(snd_mixer_oss_notify_callback); #endif @@ -111,11 +113,11 @@ static inline int init_info_for_card(struct snd_card *card) struct snd_info_entry *entry; if ((err = snd_info_card_register(card)) < 0) { - snd_printd("unable to create card info\n"); + dev_dbg(card->dev, "unable to create card info\n"); return err; } if ((entry = snd_info_create_card_entry(card, "id", card->proc_root)) == NULL) { - snd_printd("unable to create card entry\n"); + dev_dbg(card->dev, "unable to create card entry\n"); return err; } entry->c.text.read = snd_card_id_read; @@ -130,8 +132,42 @@ static inline int init_info_for_card(struct snd_card *card) #define init_info_for_card(card) #endif +static int check_empty_slot(struct module *module, int slot) +{ + return !slots[slot] || !*slots[slot]; +} + +/* return an empty slot number (>= 0) found in the given bitmask @mask. + * @mask == -1 == 0xffffffff means: take any free slot up to 32 + * when no slot is available, return the original @mask as is. + */ +static int get_slot_from_bitmask(int mask, int (*check)(struct module *, int), + struct module *module) +{ + int slot; + + for (slot = 0; slot < SNDRV_CARDS; slot++) { + if (slot < 32 && !(mask & (1U << slot))) + continue; + if (!test_bit(slot, snd_cards_lock)) { + if (check(module, slot)) + return slot; /* found */ + } + } + return mask; /* unchanged */ +} + +static int snd_card_do_free(struct snd_card *card); +static const struct attribute_group *card_dev_attr_groups[]; + +static void release_card_device(struct device *dev) +{ + snd_card_do_free(dev_to_snd_card(dev)); +} + /** - * snd_card_create - create and initialize a soundcard structure + * snd_card_new - create and initialize a soundcard structure + * @parent: the parent device object * @idx: card index (address) [0 ... (SNDRV_CARDS-1)] * @xid: card identification (ASCII string) * @module: top level module for locking @@ -144,14 +180,14 @@ static inline int init_info_for_card(struct snd_card *card) * space for the driver to use freely. The allocated struct is stored * in the given card_ret pointer. * - * Returns zero if successful or a negative error code. + * Return: Zero if successful or a negative error code. */ -int snd_card_create(int idx, const char *xid, +int snd_card_new(struct device *parent, int idx, const char *xid, struct module *module, int extra_size, struct snd_card **card_ret) { struct snd_card *card; - int err, idx2; + int err; if (snd_BUG_ON(!card_ret)) return -EINVAL; @@ -162,86 +198,81 @@ int snd_card_create(int idx, const char *xid, card = kzalloc(sizeof(*card) + extra_size, GFP_KERNEL); if (!card) return -ENOMEM; + if (extra_size > 0) + card->private_data = (char *)card + sizeof(struct snd_card); if (xid) strlcpy(card->id, xid, sizeof(card->id)); err = 0; mutex_lock(&snd_card_mutex); - if (idx < 0) { - for (idx2 = 0; idx2 < SNDRV_CARDS; idx2++) - /* idx == -1 == 0xffff means: take any free slot */ - if (~snd_cards_lock & idx & 1<<idx2) { - if (module_slot_match(module, idx2)) { - idx = idx2; - break; - } - } - } - if (idx < 0) { - for (idx2 = 0; idx2 < SNDRV_CARDS; idx2++) - /* idx == -1 == 0xffff means: take any free slot */ - if (~snd_cards_lock & idx & 1<<idx2) { - if (!slots[idx2] || !*slots[idx2]) { - idx = idx2; - break; - } - } - } + if (idx < 0) /* first check the matching module-name slot */ + idx = get_slot_from_bitmask(idx, module_slot_match, module); + if (idx < 0) /* if not matched, assign an empty slot */ + idx = get_slot_from_bitmask(idx, check_empty_slot, module); if (idx < 0) err = -ENODEV; else if (idx < snd_ecards_limit) { - if (snd_cards_lock & (1 << idx)) + if (test_bit(idx, snd_cards_lock)) err = -EBUSY; /* invalid */ } else if (idx >= SNDRV_CARDS) err = -ENODEV; if (err < 0) { mutex_unlock(&snd_card_mutex); - snd_printk(KERN_ERR "cannot find the slot for index %d (range 0-%i), error: %d\n", + dev_err(parent, "cannot find the slot for index %d (range 0-%i), error: %d\n", idx, snd_ecards_limit - 1, err); - goto __error; + kfree(card); + return err; } - snd_cards_lock |= 1 << idx; /* lock it */ + set_bit(idx, snd_cards_lock); /* lock it */ if (idx >= snd_ecards_limit) snd_ecards_limit = idx + 1; /* increase the limit */ mutex_unlock(&snd_card_mutex); + card->dev = parent; card->number = idx; card->module = module; INIT_LIST_HEAD(&card->devices); init_rwsem(&card->controls_rwsem); rwlock_init(&card->ctl_files_rwlock); + mutex_init(&card->user_ctl_lock); INIT_LIST_HEAD(&card->controls); INIT_LIST_HEAD(&card->ctl_files); spin_lock_init(&card->files_lock); INIT_LIST_HEAD(&card->files_list); - init_waitqueue_head(&card->shutdown_sleep); - atomic_set(&card->refcount, 0); #ifdef CONFIG_PM mutex_init(&card->power_lock); init_waitqueue_head(&card->power_sleep); #endif + + device_initialize(&card->card_dev); + card->card_dev.parent = parent; + card->card_dev.class = sound_class; + card->card_dev.release = release_card_device; + card->card_dev.groups = card_dev_attr_groups; + err = kobject_set_name(&card->card_dev.kobj, "card%d", idx); + if (err < 0) + goto __error; + /* the control interface cannot be accessed from the user space until */ /* snd_cards_bitmask and snd_cards are set with snd_card_register */ err = snd_ctl_create(card); if (err < 0) { - snd_printk(KERN_ERR "unable to register control minors\n"); + dev_err(parent, "unable to register control minors\n"); goto __error; } err = snd_info_card_create(card); if (err < 0) { - snd_printk(KERN_ERR "unable to create card info\n"); + dev_err(parent, "unable to create card info\n"); goto __error_ctl; } - if (extra_size > 0) - card->private_data = (char *)card + sizeof(struct snd_card); *card_ret = card; return 0; __error_ctl: - snd_device_free_all(card, SNDRV_DEV_CMD_PRE); + snd_device_free_all(card); __error: - kfree(card); + put_device(&card->card_dev); return err; } -EXPORT_SYMBOL(snd_card_create); +EXPORT_SYMBOL(snd_card_new); /* return non-zero if a card is already locked */ int snd_card_locked(int card) @@ -249,7 +280,7 @@ int snd_card_locked(int card) int locked; mutex_lock(&snd_card_mutex); - locked = snd_cards_lock & (1 << card); + locked = test_bit(card, snd_cards_lock); mutex_unlock(&snd_card_mutex); return locked; } @@ -337,7 +368,7 @@ static const struct file_operations snd_shutdown_f_ops = * * Disconnects all APIs from the file-operations (user space). * - * Returns zero, otherwise a negative error code. + * Return: Zero, otherwise a negative error code. * * Note: The current implementation replaces all active file->f_op with special * dummy file operations (they do nothing except release). @@ -361,7 +392,7 @@ int snd_card_disconnect(struct snd_card *card) /* phase 1: disable fops (user space) operations for ALSA API */ mutex_lock(&snd_card_mutex); snd_cards[card->number] = NULL; - snd_cards_lock &= ~(1 << card->number); + clear_bit(card->number, snd_cards_lock); mutex_unlock(&snd_card_mutex); /* phase 2: replace file->f_op with special dummy operations */ @@ -384,7 +415,7 @@ int snd_card_disconnect(struct snd_card *card) /* phase 3: notify all connected devices about disconnection */ /* at this point, they cannot respond to any calls except release() */ -#if defined(CONFIG_SND_MIXER_OSS) || defined(CONFIG_SND_MIXER_OSS_MODULE) +#if IS_ENABLED(CONFIG_SND_MIXER_OSS) if (snd_mixer_oss_notify_callback) snd_mixer_oss_notify_callback(card, SND_MIXER_OSS_NOTIFY_DISCONNECT); #endif @@ -392,12 +423,12 @@ int snd_card_disconnect(struct snd_card *card) /* notify all devices that we are disconnected */ err = snd_device_disconnect_all(card); if (err < 0) - snd_printk(KERN_ERR "not all devices for card %i can be disconnected\n", card->number); + dev_err(card->dev, "not all devices for card %i can be disconnected\n", card->number); snd_info_card_disconnect(card); - if (card->card_dev) { - device_unregister(card->card_dev); - card->card_dev = NULL; + if (card->registered) { + device_del(&card->card_dev); + card->registered = false; } #ifdef CONFIG_PM wake_up(&card->power_sleep); @@ -415,86 +446,53 @@ EXPORT_SYMBOL(snd_card_disconnect); * devices automatically. That is, you don't have to release the devices * by yourself. * - * Returns zero. Frees all associated devices and frees the control + * Return: Zero. Frees all associated devices and frees the control * interface associated to given soundcard. */ static int snd_card_do_free(struct snd_card *card) { -#if defined(CONFIG_SND_MIXER_OSS) || defined(CONFIG_SND_MIXER_OSS_MODULE) +#if IS_ENABLED(CONFIG_SND_MIXER_OSS) if (snd_mixer_oss_notify_callback) snd_mixer_oss_notify_callback(card, SND_MIXER_OSS_NOTIFY_FREE); #endif - if (snd_device_free_all(card, SNDRV_DEV_CMD_PRE) < 0) { - snd_printk(KERN_ERR "unable to free all devices (pre)\n"); - /* Fatal, but this situation should never occur */ - } - if (snd_device_free_all(card, SNDRV_DEV_CMD_NORMAL) < 0) { - snd_printk(KERN_ERR "unable to free all devices (normal)\n"); - /* Fatal, but this situation should never occur */ - } - if (snd_device_free_all(card, SNDRV_DEV_CMD_POST) < 0) { - snd_printk(KERN_ERR "unable to free all devices (post)\n"); - /* Fatal, but this situation should never occur */ - } + snd_device_free_all(card); if (card->private_free) card->private_free(card); snd_info_free_entry(card->proc_id); if (snd_info_card_free(card) < 0) { - snd_printk(KERN_WARNING "unable to free card info\n"); + dev_warn(card->dev, "unable to free card info\n"); /* Not fatal error */ } + if (card->release_completion) + complete(card->release_completion); kfree(card); return 0; } -/** - * snd_card_unref - release the reference counter - * @card: the card instance - * - * Decrements the reference counter. When it reaches to zero, wake up - * the sleeper and call the destructor if needed. - */ -void snd_card_unref(struct snd_card *card) -{ - if (atomic_dec_and_test(&card->refcount)) { - wake_up(&card->shutdown_sleep); - if (card->free_on_last_close) - snd_card_do_free(card); - } -} -EXPORT_SYMBOL(snd_card_unref); - int snd_card_free_when_closed(struct snd_card *card) { - int ret; - - atomic_inc(&card->refcount); - ret = snd_card_disconnect(card); - if (ret) { - atomic_dec(&card->refcount); + int ret = snd_card_disconnect(card); + if (ret) return ret; - } - - card->free_on_last_close = 1; - if (atomic_dec_and_test(&card->refcount)) - snd_card_do_free(card); + put_device(&card->card_dev); return 0; } - EXPORT_SYMBOL(snd_card_free_when_closed); int snd_card_free(struct snd_card *card) { - int ret = snd_card_disconnect(card); + struct completion released; + int ret; + + init_completion(&released); + card->release_completion = &released; + ret = snd_card_free_when_closed(card); if (ret) return ret; - /* wait, until all devices are ready for the free operation */ - wait_event(card->shutdown_sleep, !atomic_read(&card->refcount)); - snd_card_do_free(card); + wait_for_completion(&released); return 0; } - EXPORT_SYMBOL(snd_card_free); /* retrieve the last word of shortname or longname */ @@ -549,7 +547,6 @@ static void snd_card_set_id_no_lock(struct snd_card *card, const char *src, const char *nid) { int len, loops; - bool with_suffix; bool is_default = false; char *id; @@ -565,26 +562,23 @@ static void snd_card_set_id_no_lock(struct snd_card *card, const char *src, is_default = true; } - with_suffix = false; + len = strlen(id); for (loops = 0; loops < SNDRV_CARDS; loops++) { + char *spos; + char sfxstr[5]; /* "_012" */ + int sfxlen; + if (card_id_ok(card, id)) return; /* OK */ - len = strlen(id); - if (!with_suffix) { - /* add the "_X" suffix */ - char *spos = id + len; - if (len > sizeof(card->id) - 3) - spos = id + sizeof(card->id) - 3; - strcpy(spos, "_1"); - with_suffix = true; - } else { - /* modify the existing suffix */ - if (id[len - 1] != '9') - id[len - 1]++; - else - id[len - 1] = 'A'; - } + /* Add _XYZ suffix */ + sprintf(sfxstr, "_%X", loops + 1); + sfxlen = strlen(sfxstr); + if (len + sfxlen >= sizeof(card->id)) + spos = id + sizeof(card->id) - sfxlen - 1; + else + spos = id + len; + strcpy(spos, sfxstr); } /* fallback to the default id */ if (!is_default) { @@ -592,9 +586,9 @@ static void snd_card_set_id_no_lock(struct snd_card *card, const char *src, goto again; } /* last resort... */ - snd_printk(KERN_ERR "unable to set card id (%s)\n", id); + dev_err(card->dev, "unable to set card id (%s)\n", id); if (card->proc_root->name) - strcpy(card->id, card->proc_root->name); + strlcpy(card->id, card->proc_root->name, sizeof(card->id)); } /** @@ -620,15 +614,15 @@ static ssize_t card_id_show_attr(struct device *dev, struct device_attribute *attr, char *buf) { - struct snd_card *card = dev_get_drvdata(dev); - return snprintf(buf, PAGE_SIZE, "%s\n", card ? card->id : "(null)"); + struct snd_card *card = container_of(dev, struct snd_card, card_dev); + return snprintf(buf, PAGE_SIZE, "%s\n", card->id); } static ssize_t card_id_store_attr(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct snd_card *card = dev_get_drvdata(dev); + struct snd_card *card = container_of(dev, struct snd_card, card_dev); char buf1[sizeof(card->id)]; size_t copy = count > sizeof(card->id) - 1 ? sizeof(card->id) - 1 : count; @@ -654,19 +648,32 @@ card_id_store_attr(struct device *dev, struct device_attribute *attr, return count; } -static struct device_attribute card_id_attrs = - __ATTR(id, S_IRUGO | S_IWUSR, card_id_show_attr, card_id_store_attr); +static DEVICE_ATTR(id, S_IRUGO | S_IWUSR, card_id_show_attr, card_id_store_attr); static ssize_t card_number_show_attr(struct device *dev, struct device_attribute *attr, char *buf) { - struct snd_card *card = dev_get_drvdata(dev); - return snprintf(buf, PAGE_SIZE, "%i\n", card ? card->number : -1); + struct snd_card *card = container_of(dev, struct snd_card, card_dev); + return snprintf(buf, PAGE_SIZE, "%i\n", card->number); } -static struct device_attribute card_number_attrs = - __ATTR(number, S_IRUGO, card_number_show_attr, NULL); +static DEVICE_ATTR(number, S_IRUGO, card_number_show_attr, NULL); + +static struct attribute *card_dev_attrs[] = { + &dev_attr_id.attr, + &dev_attr_number.attr, + NULL +}; + +static struct attribute_group card_dev_attr_group = { + .attrs = card_dev_attrs, +}; + +static const struct attribute_group *card_dev_attr_groups[] = { + &card_dev_attr_group, + NULL +}; /** * snd_card_register - register the soundcard @@ -677,7 +684,7 @@ static struct device_attribute card_number_attrs = * external accesses. Thus, you should call this function at the end * of the initialization of the card. * - * Returns zero otherwise a negative error code if the registration failed. + * Return: Zero otherwise a negative error code if the registration failed. */ int snd_card_register(struct snd_card *card) { @@ -686,12 +693,11 @@ int snd_card_register(struct snd_card *card) if (snd_BUG_ON(!card)) return -EINVAL; - if (!card->card_dev) { - card->card_dev = device_create(sound_class, card->dev, - MKDEV(0, 0), card, - "card%i", card->number); - if (IS_ERR(card->card_dev)) - card->card_dev = NULL; + if (!card->registered) { + err = device_add(&card->card_dev); + if (err < 0) + return err; + card->registered = true; } if ((err = snd_device_register_all(card)) < 0) @@ -717,19 +723,10 @@ int snd_card_register(struct snd_card *card) snd_cards[card->number] = card; mutex_unlock(&snd_card_mutex); init_info_for_card(card); -#if defined(CONFIG_SND_MIXER_OSS) || defined(CONFIG_SND_MIXER_OSS_MODULE) +#if IS_ENABLED(CONFIG_SND_MIXER_OSS) if (snd_mixer_oss_notify_callback) snd_mixer_oss_notify_callback(card, SND_MIXER_OSS_NOTIFY_REGISTER); #endif - if (card->card_dev) { - err = device_create_file(card->card_dev, &card_id_attrs); - if (err < 0) - return err; - err = device_create_file(card->card_dev, &card_number_attrs); - if (err < 0) - return err; - } - return 0; } @@ -849,7 +846,7 @@ int __exit snd_card_info_done(void) * This function adds the component id string to the supported list. * The component can be referred from the alsa-lib. * - * Returns zero otherwise a negative error code. + * Return: Zero otherwise a negative error code. */ int snd_component_add(struct snd_card *card, const char *component) @@ -883,7 +880,7 @@ EXPORT_SYMBOL(snd_component_add); * This linked-list is used to keep tracking the connection state, * and to avoid the release of busy resources by hotplug. * - * Returns zero or a negative error code. + * Return: zero or a negative error code. */ int snd_card_file_add(struct snd_card *card, struct file *file) { @@ -902,7 +899,7 @@ int snd_card_file_add(struct snd_card *card, struct file *file) return -ENODEV; } list_add(&mfile->list, &card->files_list); - atomic_inc(&card->refcount); + get_device(&card->card_dev); spin_unlock(&card->files_lock); return 0; } @@ -920,7 +917,7 @@ EXPORT_SYMBOL(snd_card_file_add); * called beforehand, it processes the pending release of * resources. * - * Returns zero or a negative error code. + * Return: Zero or a negative error code. */ int snd_card_file_remove(struct snd_card *card, struct file *file) { @@ -941,11 +938,11 @@ int snd_card_file_remove(struct snd_card *card, struct file *file) } spin_unlock(&card->files_lock); if (!found) { - snd_printk(KERN_ERR "ALSA card file remove problem (%p)\n", file); + dev_err(card->dev, "card file remove problem (%p)\n", file); return -ENOENT; } kfree(found); - snd_card_unref(card); + put_device(&card->card_dev); return 0; } @@ -959,6 +956,8 @@ EXPORT_SYMBOL(snd_card_file_remove); * * Waits until the power-state is changed. * + * Return: Zero if successful, or a negative error code. + * * Note: the power lock must be active before call. */ int snd_power_wait(struct snd_card *card, unsigned int power_state) diff --git a/sound/core/isadma.c b/sound/core/isadma.c index c0f1208bb7d..31e8544d7f2 100644 --- a/sound/core/isadma.c +++ b/sound/core/isadma.c @@ -81,7 +81,7 @@ EXPORT_SYMBOL(snd_dma_disable); * @dma: the dma number * @size: the dma transfer size * - * Returns the current pointer in DMA tranfer buffer in bytes + * Return: The current pointer in DMA transfer buffer in bytes. */ unsigned int snd_dma_pointer(unsigned long dma, unsigned int size) { @@ -106,7 +106,7 @@ unsigned int snd_dma_pointer(unsigned long dma, unsigned int size) result = result1; #ifdef CONFIG_SND_DEBUG if (result > size) - snd_printk(KERN_ERR "pointer (0x%x) for DMA #%ld is greater than transfer size (0x%x)\n", result, dma, size); + pr_err("ALSA: pointer (0x%x) for DMA #%ld is greater than transfer size (0x%x)\n", result, dma, size); #endif if (result >= size || result == 0) return 0; diff --git a/sound/core/jack.c b/sound/core/jack.c index a06b1651fcb..8658578eb58 100644 --- a/sound/core/jack.c +++ b/sound/core/jack.c @@ -34,12 +34,12 @@ static int jack_switch_types[SND_JACK_SWITCH_TYPES] = { SW_LINEIN_INSERT, }; -static int snd_jack_dev_free(struct snd_device *device) +static int snd_jack_dev_disconnect(struct snd_device *device) { struct snd_jack *jack = device->device_data; - if (jack->private_free) - jack->private_free(jack); + if (!jack->input_dev) + return 0; /* If the input device is registered with the input subsystem * then we need to use a different deallocator. */ @@ -47,6 +47,18 @@ static int snd_jack_dev_free(struct snd_device *device) input_unregister_device(jack->input_dev); else input_free_device(jack->input_dev); + jack->input_dev = NULL; + return 0; +} + +static int snd_jack_dev_free(struct snd_device *device) +{ + struct snd_jack *jack = device->device_data; + + if (jack->private_free) + jack->private_free(jack); + + snd_jack_dev_disconnect(device); kfree(jack->id); kfree(jack); @@ -98,8 +110,8 @@ static int snd_jack_dev_register(struct snd_device *device) * * Creates a new jack object. * - * Returns zero if successful, or a negative error code on failure. - * On success jjack will be initialised. + * Return: Zero if successful, or a negative error code on failure. + * On success @jjack will be initialised. */ int snd_jack_new(struct snd_card *card, const char *id, int type, struct snd_jack **jjack) @@ -110,6 +122,7 @@ int snd_jack_new(struct snd_card *card, const char *id, int type, static struct snd_device_ops ops = { .dev_free = snd_jack_dev_free, .dev_register = snd_jack_dev_register, + .dev_disconnect = snd_jack_dev_disconnect, }; jack = kzalloc(sizeof(struct snd_jack), GFP_KERNEL); @@ -189,6 +202,8 @@ EXPORT_SYMBOL(snd_jack_set_parent); * using this abstraction. * * This function may only be called prior to registration of the jack. + * + * Return: Zero if successful, or a negative error code on failure. */ int snd_jack_set_key(struct snd_jack *jack, enum snd_jack_types type, int keytype) diff --git a/sound/core/memalloc.c b/sound/core/memalloc.c index 69156923843..082509eb805 100644 --- a/sound/core/memalloc.c +++ b/sound/core/memalloc.c @@ -21,59 +21,18 @@ * */ -#include <linux/module.h> -#include <linux/proc_fs.h> -#include <linux/init.h> -#include <linux/pci.h> #include <linux/slab.h> #include <linux/mm.h> -#include <linux/seq_file.h> -#include <asm/uaccess.h> #include <linux/dma-mapping.h> -#include <linux/moduleparam.h> -#include <linux/mutex.h> +#include <linux/genalloc.h> #include <sound/memalloc.h> - -MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>, Jaroslav Kysela <perex@perex.cz>"); -MODULE_DESCRIPTION("Memory allocator for ALSA system."); -MODULE_LICENSE("GPL"); - - -/* - */ - -static DEFINE_MUTEX(list_mutex); -static LIST_HEAD(mem_list_head); - -/* buffer preservation list */ -struct snd_mem_list { - struct snd_dma_buffer buffer; - unsigned int id; - struct list_head list; -}; - -/* id for pre-allocated buffers */ -#define SNDRV_DMA_DEVICE_UNUSED (unsigned int)-1 - /* * * Generic memory allocators * */ -static long snd_allocated_pages; /* holding the number of allocated pages */ - -static inline void inc_snd_pages(int order) -{ - snd_allocated_pages += 1 << order; -} - -static inline void dec_snd_pages(int order) -{ - snd_allocated_pages -= 1 << order; -} - /** * snd_malloc_pages - allocate pages with the given size * @size: the size to allocate in bytes @@ -81,12 +40,11 @@ static inline void dec_snd_pages(int order) * * Allocates the physically contiguous pages with the given size. * - * Returns the pointer of the buffer, or NULL if no enoguh memory. + * Return: The pointer of the buffer, or %NULL if no enough memory. */ void *snd_malloc_pages(size_t size, gfp_t gfp_flags) { int pg; - void *res; if (WARN_ON(!size)) return NULL; @@ -94,9 +52,7 @@ void *snd_malloc_pages(size_t size, gfp_t gfp_flags) return NULL; gfp_flags |= __GFP_COMP; /* compound page lets parts be mapped */ pg = get_order(size); - if ((res = (void *) __get_free_pages(gfp_flags, pg)) != NULL) - inc_snd_pages(pg); - return res; + return (void *) __get_free_pages(gfp_flags, pg); } /** @@ -113,7 +69,6 @@ void snd_free_pages(void *ptr, size_t size) if (ptr == NULL) return; pg = get_order(size); - dec_snd_pages(pg); free_pages((unsigned long) ptr, pg); } @@ -128,7 +83,6 @@ void snd_free_pages(void *ptr, size_t size) static void *snd_malloc_dev_pages(struct device *dev, size_t size, dma_addr_t *dma) { int pg; - void *res; gfp_t gfp_flags; if (WARN_ON(!dma)) @@ -138,11 +92,7 @@ static void *snd_malloc_dev_pages(struct device *dev, size_t size, dma_addr_t *d | __GFP_COMP /* compound page lets parts be mapped */ | __GFP_NORETRY /* don't trigger OOM-killer */ | __GFP_NOWARN; /* no stack trace print - this call is non-critical */ - res = dma_alloc_coherent(dev, PAGE_SIZE << pg, dma, gfp_flags); - if (res != NULL) - inc_snd_pages(pg); - - return res; + return dma_alloc_coherent(dev, PAGE_SIZE << pg, dma, gfp_flags); } /* free the coherent DMA pages */ @@ -154,9 +104,49 @@ static void snd_free_dev_pages(struct device *dev, size_t size, void *ptr, if (ptr == NULL) return; pg = get_order(size); - dec_snd_pages(pg); dma_free_coherent(dev, PAGE_SIZE << pg, ptr, dma); } + +#ifdef CONFIG_GENERIC_ALLOCATOR +/** + * snd_malloc_dev_iram - allocate memory from on-chip internal ram + * @dmab: buffer allocation record to store the allocated data + * @size: number of bytes to allocate from the iram + * + * This function requires iram phandle provided via of_node + */ +static void snd_malloc_dev_iram(struct snd_dma_buffer *dmab, size_t size) +{ + struct device *dev = dmab->dev.dev; + struct gen_pool *pool = NULL; + + dmab->area = NULL; + dmab->addr = 0; + + if (dev->of_node) + pool = of_get_named_gen_pool(dev->of_node, "iram", 0); + + if (!pool) + return; + + /* Assign the pool into private_data field */ + dmab->private_data = pool; + + dmab->area = gen_pool_dma_alloc(pool, size, &dmab->addr); +} + +/** + * snd_free_dev_iram - free allocated specific memory from on-chip internal ram + * @dmab: buffer allocation record to store the allocated data + */ +static void snd_free_dev_iram(struct snd_dma_buffer *dmab) +{ + struct gen_pool *pool = dmab->private_data; + + if (pool && dmab->area) + gen_pool_free(pool, (unsigned long)dmab->area, dmab->bytes); +} +#endif /* CONFIG_GENERIC_ALLOCATOR */ #endif /* CONFIG_HAS_DMA */ /* @@ -175,9 +165,9 @@ static void snd_free_dev_pages(struct device *dev, size_t size, void *ptr, * * Calls the memory-allocator function for the corresponding * buffer type. - * - * Returns zero if the buffer with the given size is allocated successfully, - * other a negative value at error. + * + * Return: Zero if the buffer with the given size is allocated successfully, + * otherwise a negative value on error. */ int snd_dma_alloc_pages(int type, struct device *device, size_t size, struct snd_dma_buffer *dmab) @@ -197,6 +187,16 @@ int snd_dma_alloc_pages(int type, struct device *device, size_t size, dmab->addr = 0; break; #ifdef CONFIG_HAS_DMA +#ifdef CONFIG_GENERIC_ALLOCATOR + case SNDRV_DMA_TYPE_DEV_IRAM: + snd_malloc_dev_iram(dmab, size); + if (dmab->area) + break; + /* Internal memory might have limited size and no enough space, + * so if we fail to malloc, try to fetch memory traditionally. + */ + dmab->dev.type = SNDRV_DMA_TYPE_DEV; +#endif /* CONFIG_GENERIC_ALLOCATOR */ case SNDRV_DMA_TYPE_DEV: dmab->area = snd_malloc_dev_pages(device, size, &dmab->addr); break; @@ -207,7 +207,7 @@ int snd_dma_alloc_pages(int type, struct device *device, size_t size, break; #endif default: - printk(KERN_ERR "snd-malloc: invalid device type %d\n", type); + pr_err("snd-malloc: invalid device type %d\n", type); dmab->area = NULL; dmab->addr = 0; return -ENXIO; @@ -229,9 +229,9 @@ int snd_dma_alloc_pages(int type, struct device *device, size_t size, * buffer type. When no space is left, this function reduces the size and * tries to allocate again. The size actually allocated is stored in * res_size argument. - * - * Returns zero if the buffer with the given size is allocated successfully, - * other a negative value at error. + * + * Return: Zero if the buffer with the given size is allocated successfully, + * otherwise a negative value on error. */ int snd_dma_alloc_pages_fallback(int type, struct device *device, size_t size, struct snd_dma_buffer *dmab) @@ -269,6 +269,11 @@ void snd_dma_free_pages(struct snd_dma_buffer *dmab) snd_free_pages(dmab->area, dmab->bytes); break; #ifdef CONFIG_HAS_DMA +#ifdef CONFIG_GENERIC_ALLOCATOR + case SNDRV_DMA_TYPE_DEV_IRAM: + snd_free_dev_iram(dmab); + break; +#endif /* CONFIG_GENERIC_ALLOCATOR */ case SNDRV_DMA_TYPE_DEV: snd_free_dev_pages(dmab->dev.dev, dmab->bytes, dmab->area, dmab->addr); break; @@ -279,260 +284,10 @@ void snd_dma_free_pages(struct snd_dma_buffer *dmab) break; #endif default: - printk(KERN_ERR "snd-malloc: invalid device type %d\n", dmab->dev.type); - } -} - - -/** - * snd_dma_get_reserved - get the reserved buffer for the given device - * @dmab: the buffer allocation record to store - * @id: the buffer id - * - * Looks for the reserved-buffer list and re-uses if the same buffer - * is found in the list. When the buffer is found, it's removed from the free list. - * - * Returns the size of buffer if the buffer is found, or zero if not found. - */ -size_t snd_dma_get_reserved_buf(struct snd_dma_buffer *dmab, unsigned int id) -{ - struct snd_mem_list *mem; - - if (WARN_ON(!dmab)) - return 0; - - mutex_lock(&list_mutex); - list_for_each_entry(mem, &mem_list_head, list) { - if (mem->id == id && - (mem->buffer.dev.dev == NULL || dmab->dev.dev == NULL || - ! memcmp(&mem->buffer.dev, &dmab->dev, sizeof(dmab->dev)))) { - struct device *dev = dmab->dev.dev; - list_del(&mem->list); - *dmab = mem->buffer; - if (dmab->dev.dev == NULL) - dmab->dev.dev = dev; - kfree(mem); - mutex_unlock(&list_mutex); - return dmab->bytes; - } - } - mutex_unlock(&list_mutex); - return 0; -} - -/** - * snd_dma_reserve_buf - reserve the buffer - * @dmab: the buffer to reserve - * @id: the buffer id - * - * Reserves the given buffer as a reserved buffer. - * - * Returns zero if successful, or a negative code at error. - */ -int snd_dma_reserve_buf(struct snd_dma_buffer *dmab, unsigned int id) -{ - struct snd_mem_list *mem; - - if (WARN_ON(!dmab)) - return -EINVAL; - mem = kmalloc(sizeof(*mem), GFP_KERNEL); - if (! mem) - return -ENOMEM; - mutex_lock(&list_mutex); - mem->buffer = *dmab; - mem->id = id; - list_add_tail(&mem->list, &mem_list_head); - mutex_unlock(&list_mutex); - return 0; -} - -/* - * purge all reserved buffers - */ -static void free_all_reserved_pages(void) -{ - struct list_head *p; - struct snd_mem_list *mem; - - mutex_lock(&list_mutex); - while (! list_empty(&mem_list_head)) { - p = mem_list_head.next; - mem = list_entry(p, struct snd_mem_list, list); - list_del(p); - snd_dma_free_pages(&mem->buffer); - kfree(mem); - } - mutex_unlock(&list_mutex); -} - - -#ifdef CONFIG_PROC_FS -/* - * proc file interface - */ -#define SND_MEM_PROC_FILE "driver/snd-page-alloc" -static struct proc_dir_entry *snd_mem_proc; - -static int snd_mem_proc_read(struct seq_file *seq, void *offset) -{ - long pages = snd_allocated_pages >> (PAGE_SHIFT-12); - struct snd_mem_list *mem; - int devno; - static char *types[] = { "UNKNOWN", "CONT", "DEV", "DEV-SG" }; - - mutex_lock(&list_mutex); - seq_printf(seq, "pages : %li bytes (%li pages per %likB)\n", - pages * PAGE_SIZE, pages, PAGE_SIZE / 1024); - devno = 0; - list_for_each_entry(mem, &mem_list_head, list) { - devno++; - seq_printf(seq, "buffer %d : ID %08x : type %s\n", - devno, mem->id, types[mem->buffer.dev.type]); - seq_printf(seq, " addr = 0x%lx, size = %d bytes\n", - (unsigned long)mem->buffer.addr, - (int)mem->buffer.bytes); + pr_err("snd-malloc: invalid device type %d\n", dmab->dev.type); } - mutex_unlock(&list_mutex); - return 0; -} - -static int snd_mem_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, snd_mem_proc_read, NULL); -} - -/* FIXME: for pci only - other bus? */ -#ifdef CONFIG_PCI -#define gettoken(bufp) strsep(bufp, " \t\n") - -static ssize_t snd_mem_proc_write(struct file *file, const char __user * buffer, - size_t count, loff_t * ppos) -{ - char buf[128]; - char *token, *p; - - if (count > sizeof(buf) - 1) - return -EINVAL; - if (copy_from_user(buf, buffer, count)) - return -EFAULT; - buf[count] = '\0'; - - p = buf; - token = gettoken(&p); - if (! token || *token == '#') - return count; - if (strcmp(token, "add") == 0) { - char *endp; - int vendor, device, size, buffers; - long mask; - int i, alloced; - struct pci_dev *pci; - - if ((token = gettoken(&p)) == NULL || - (vendor = simple_strtol(token, NULL, 0)) <= 0 || - (token = gettoken(&p)) == NULL || - (device = simple_strtol(token, NULL, 0)) <= 0 || - (token = gettoken(&p)) == NULL || - (mask = simple_strtol(token, NULL, 0)) < 0 || - (token = gettoken(&p)) == NULL || - (size = memparse(token, &endp)) < 64*1024 || - size > 16*1024*1024 /* too big */ || - (token = gettoken(&p)) == NULL || - (buffers = simple_strtol(token, NULL, 0)) <= 0 || - buffers > 4) { - printk(KERN_ERR "snd-page-alloc: invalid proc write format\n"); - return count; - } - vendor &= 0xffff; - device &= 0xffff; - - alloced = 0; - pci = NULL; - while ((pci = pci_get_device(vendor, device, pci)) != NULL) { - if (mask > 0 && mask < 0xffffffff) { - if (pci_set_dma_mask(pci, mask) < 0 || - pci_set_consistent_dma_mask(pci, mask) < 0) { - printk(KERN_ERR "snd-page-alloc: cannot set DMA mask %lx for pci %04x:%04x\n", mask, vendor, device); - pci_dev_put(pci); - return count; - } - } - for (i = 0; i < buffers; i++) { - struct snd_dma_buffer dmab; - memset(&dmab, 0, sizeof(dmab)); - if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci), - size, &dmab) < 0) { - printk(KERN_ERR "snd-page-alloc: cannot allocate buffer pages (size = %d)\n", size); - pci_dev_put(pci); - return count; - } - snd_dma_reserve_buf(&dmab, snd_dma_pci_buf_id(pci)); - } - alloced++; - } - if (! alloced) { - for (i = 0; i < buffers; i++) { - struct snd_dma_buffer dmab; - memset(&dmab, 0, sizeof(dmab)); - /* FIXME: We can allocate only in ZONE_DMA - * without a device pointer! - */ - if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, NULL, - size, &dmab) < 0) { - printk(KERN_ERR "snd-page-alloc: cannot allocate buffer pages (size = %d)\n", size); - break; - } - snd_dma_reserve_buf(&dmab, (unsigned int)((vendor << 16) | device)); - } - } - } else if (strcmp(token, "erase") == 0) - /* FIXME: need for releasing each buffer chunk? */ - free_all_reserved_pages(); - else - printk(KERN_ERR "snd-page-alloc: invalid proc cmd\n"); - return count; -} -#endif /* CONFIG_PCI */ - -static const struct file_operations snd_mem_proc_fops = { - .owner = THIS_MODULE, - .open = snd_mem_proc_open, - .read = seq_read, -#ifdef CONFIG_PCI - .write = snd_mem_proc_write, -#endif - .llseek = seq_lseek, - .release = single_release, -}; - -#endif /* CONFIG_PROC_FS */ - -/* - * module entry - */ - -static int __init snd_mem_init(void) -{ -#ifdef CONFIG_PROC_FS - snd_mem_proc = proc_create(SND_MEM_PROC_FILE, 0644, NULL, - &snd_mem_proc_fops); -#endif - return 0; } -static void __exit snd_mem_exit(void) -{ - remove_proc_entry(SND_MEM_PROC_FILE, NULL); - free_all_reserved_pages(); - if (snd_allocated_pages > 0) - printk(KERN_ERR "snd-malloc: Memory leak? pages not freed = %li\n", snd_allocated_pages); -} - - -module_init(snd_mem_init) -module_exit(snd_mem_exit) - - /* * exports */ @@ -540,8 +295,5 @@ EXPORT_SYMBOL(snd_dma_alloc_pages); EXPORT_SYMBOL(snd_dma_alloc_pages_fallback); EXPORT_SYMBOL(snd_dma_free_pages); -EXPORT_SYMBOL(snd_dma_get_reserved_buf); -EXPORT_SYMBOL(snd_dma_reserve_buf); - EXPORT_SYMBOL(snd_malloc_pages); EXPORT_SYMBOL(snd_free_pages); diff --git a/sound/core/memory.c b/sound/core/memory.c index 66a278d0b04..36c0f1a2e18 100644 --- a/sound/core/memory.c +++ b/sound/core/memory.c @@ -33,7 +33,7 @@ * * Copies the data from mmio-space to user-space. * - * Returns zero if successful, or non-zero on failure. + * Return: Zero if successful, or non-zero on failure. */ int copy_to_user_fromio(void __user *dst, const volatile void __iomem *src, size_t count) { @@ -66,7 +66,7 @@ EXPORT_SYMBOL(copy_to_user_fromio); * * Copies the data from user-space to mmio-space. * - * Returns zero if successful, or non-zero on failure. + * Return: Zero if successful, or non-zero on failure. */ int copy_from_user_toio(volatile void __iomem *dst, const void __user *src, size_t count) { diff --git a/sound/core/oss/mixer_oss.c b/sound/core/oss/mixer_oss.c index e8a1d18774b..5e6349f00ec 100644 --- a/sound/core/oss/mixer_oss.c +++ b/sound/core/oss/mixer_oss.c @@ -1187,7 +1187,8 @@ static void snd_mixer_oss_proc_write(struct snd_info_entry *entry, if (oss_mixer_names[ch] && strcmp(oss_mixer_names[ch], str) == 0) break; if (ch >= SNDRV_OSS_MAX_MIXERS) { - snd_printk(KERN_ERR "mixer_oss: invalid OSS volume '%s'\n", str); + pr_err("ALSA: mixer_oss: invalid OSS volume '%s'\n", + str); continue; } cptr = snd_info_get_str(str, cptr, sizeof(str)); @@ -1201,7 +1202,7 @@ static void snd_mixer_oss_proc_write(struct snd_info_entry *entry, snd_info_get_str(idxstr, cptr, sizeof(idxstr)); idx = simple_strtoul(idxstr, NULL, 10); if (idx >= 0x4000) { /* too big */ - snd_printk(KERN_ERR "mixer_oss: invalid index %d\n", idx); + pr_err("ALSA: mixer_oss: invalid index %d\n", idx); continue; } mutex_lock(&mixer->reg_mutex); @@ -1212,7 +1213,7 @@ static void snd_mixer_oss_proc_write(struct snd_info_entry *entry, goto __unlock; tbl = kmalloc(sizeof(*tbl), GFP_KERNEL); if (! tbl) { - snd_printk(KERN_ERR "mixer_oss: no memory\n"); + pr_err("ALSA: mixer_oss: no memory\n"); goto __unlock; } tbl->oss_id = ch; @@ -1343,20 +1344,18 @@ static int snd_mixer_oss_notify_handler(struct snd_card *card, int cmd) struct snd_mixer_oss *mixer; if (cmd == SND_MIXER_OSS_NOTIFY_REGISTER) { - char name[128]; int idx, err; mixer = kcalloc(2, sizeof(*mixer), GFP_KERNEL); if (mixer == NULL) return -ENOMEM; mutex_init(&mixer->reg_mutex); - sprintf(name, "mixer%i%i", card->number, 0); if ((err = snd_register_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER, card, 0, - &snd_mixer_oss_f_ops, card, - name)) < 0) { - snd_printk(KERN_ERR "unable to register OSS mixer device %i:%i\n", - card->number, 0); + &snd_mixer_oss_f_ops, card)) < 0) { + dev_err(card->dev, + "unable to register OSS mixer device %i:%i\n", + card->number, 0); kfree(mixer); return err; } @@ -1365,7 +1364,8 @@ static int snd_mixer_oss_notify_handler(struct snd_card *card, int cmd) if (*card->mixername) strlcpy(mixer->name, card->mixername, sizeof(mixer->name)); else - strlcpy(mixer->name, name, sizeof(mixer->name)); + snprintf(mixer->name, sizeof(mixer->name), + "mixer%i", card->number); #ifdef SNDRV_OSS_INFO_DEV_MIXERS snd_oss_info_register(SNDRV_OSS_INFO_DEV_MIXERS, card->number, diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c index 4c1cc51772e..ada69d7a8d7 100644 --- a/sound/core/oss/pcm_oss.c +++ b/sound/core/oss/pcm_oss.c @@ -854,7 +854,7 @@ static int snd_pcm_oss_change_params(struct snd_pcm_substream *substream) params = kmalloc(sizeof(*params), GFP_KERNEL); sparams = kmalloc(sizeof(*sparams), GFP_KERNEL); if (!sw_params || !params || !sparams) { - snd_printd("No memory\n"); + pcm_dbg(substream->pcm, "No memory\n"); err = -ENOMEM; goto failure; } @@ -877,7 +877,7 @@ static int snd_pcm_oss_change_params(struct snd_pcm_substream *substream) } err = snd_pcm_hw_param_mask(substream, sparams, SNDRV_PCM_HW_PARAM_ACCESS, &mask); if (err < 0) { - snd_printd("No usable accesses\n"); + pcm_dbg(substream->pcm, "No usable accesses\n"); err = -EINVAL; goto failure; } @@ -902,7 +902,7 @@ static int snd_pcm_oss_change_params(struct snd_pcm_substream *substream) break; } if ((__force int)sformat > (__force int)SNDRV_PCM_FORMAT_LAST) { - snd_printd("Cannot find a format!!!\n"); + pcm_dbg(substream->pcm, "Cannot find a format!!!\n"); err = -EINVAL; goto failure; } @@ -942,14 +942,16 @@ static int snd_pcm_oss_change_params(struct snd_pcm_substream *substream) if ((err = snd_pcm_plug_format_plugins(substream, params, sparams)) < 0) { - snd_printd("snd_pcm_plug_format_plugins failed: %i\n", err); + pcm_dbg(substream->pcm, + "snd_pcm_plug_format_plugins failed: %i\n", err); snd_pcm_oss_plugin_clear(substream); goto failure; } if (runtime->oss.plugin_first) { struct snd_pcm_plugin *plugin; if ((err = snd_pcm_plugin_build_io(substream, sparams, &plugin)) < 0) { - snd_printd("snd_pcm_plugin_build_io failed: %i\n", err); + pcm_dbg(substream->pcm, + "snd_pcm_plugin_build_io failed: %i\n", err); snd_pcm_oss_plugin_clear(substream); goto failure; } @@ -983,7 +985,7 @@ static int snd_pcm_oss_change_params(struct snd_pcm_substream *substream) snd_pcm_kernel_ioctl(substream, SNDRV_PCM_IOCTL_DROP, NULL); if ((err = snd_pcm_kernel_ioctl(substream, SNDRV_PCM_IOCTL_HW_PARAMS, sparams)) < 0) { - snd_printd("HW_PARAMS failed: %i\n", err); + pcm_dbg(substream->pcm, "HW_PARAMS failed: %i\n", err); goto failure; } @@ -1016,7 +1018,7 @@ static int snd_pcm_oss_change_params(struct snd_pcm_substream *substream) } if ((err = snd_pcm_kernel_ioctl(substream, SNDRV_PCM_IOCTL_SW_PARAMS, sw_params)) < 0) { - snd_printd("SW_PARAMS failed: %i\n", err); + pcm_dbg(substream->pcm, "SW_PARAMS failed: %i\n", err); goto failure; } @@ -1110,7 +1112,8 @@ static int snd_pcm_oss_prepare(struct snd_pcm_substream *substream) err = snd_pcm_kernel_ioctl(substream, SNDRV_PCM_IOCTL_PREPARE, NULL); if (err < 0) { - snd_printd("snd_pcm_oss_prepare: SNDRV_PCM_IOCTL_PREPARE failed\n"); + pcm_dbg(substream->pcm, + "snd_pcm_oss_prepare: SNDRV_PCM_IOCTL_PREPARE failed\n"); return err; } runtime->oss.prepare = 0; @@ -1175,12 +1178,10 @@ snd_pcm_sframes_t snd_pcm_oss_write3(struct snd_pcm_substream *substream, const if (runtime->status->state == SNDRV_PCM_STATE_XRUN || runtime->status->state == SNDRV_PCM_STATE_SUSPENDED) { #ifdef OSS_DEBUG - if (runtime->status->state == SNDRV_PCM_STATE_XRUN) - printk(KERN_DEBUG "pcm_oss: write: " - "recovering from XRUN\n"); - else - printk(KERN_DEBUG "pcm_oss: write: " - "recovering from SUSPEND\n"); + pcm_dbg(substream->pcm, + "pcm_oss: write: recovering from %s\n", + runtime->status->state == SNDRV_PCM_STATE_XRUN ? + "XRUN" : "SUSPEND"); #endif ret = snd_pcm_oss_prepare(substream); if (ret < 0) @@ -1213,12 +1214,10 @@ snd_pcm_sframes_t snd_pcm_oss_read3(struct snd_pcm_substream *substream, char *p if (runtime->status->state == SNDRV_PCM_STATE_XRUN || runtime->status->state == SNDRV_PCM_STATE_SUSPENDED) { #ifdef OSS_DEBUG - if (runtime->status->state == SNDRV_PCM_STATE_XRUN) - printk(KERN_DEBUG "pcm_oss: read: " - "recovering from XRUN\n"); - else - printk(KERN_DEBUG "pcm_oss: read: " - "recovering from SUSPEND\n"); + pcm_dbg(substream->pcm, + "pcm_oss: read: recovering from %s\n", + runtime->status->state == SNDRV_PCM_STATE_XRUN ? + "XRUN" : "SUSPEND"); #endif ret = snd_pcm_kernel_ioctl(substream, SNDRV_PCM_IOCTL_DRAIN, NULL); if (ret < 0) @@ -1261,12 +1260,10 @@ snd_pcm_sframes_t snd_pcm_oss_writev3(struct snd_pcm_substream *substream, void if (runtime->status->state == SNDRV_PCM_STATE_XRUN || runtime->status->state == SNDRV_PCM_STATE_SUSPENDED) { #ifdef OSS_DEBUG - if (runtime->status->state == SNDRV_PCM_STATE_XRUN) - printk(KERN_DEBUG "pcm_oss: writev: " - "recovering from XRUN\n"); - else - printk(KERN_DEBUG "pcm_oss: writev: " - "recovering from SUSPEND\n"); + pcm_dbg(substream->pcm, + "pcm_oss: writev: recovering from %s\n", + runtime->status->state == SNDRV_PCM_STATE_XRUN ? + "XRUN" : "SUSPEND"); #endif ret = snd_pcm_oss_prepare(substream); if (ret < 0) @@ -1299,12 +1296,10 @@ snd_pcm_sframes_t snd_pcm_oss_readv3(struct snd_pcm_substream *substream, void * if (runtime->status->state == SNDRV_PCM_STATE_XRUN || runtime->status->state == SNDRV_PCM_STATE_SUSPENDED) { #ifdef OSS_DEBUG - if (runtime->status->state == SNDRV_PCM_STATE_XRUN) - printk(KERN_DEBUG "pcm_oss: readv: " - "recovering from XRUN\n"); - else - printk(KERN_DEBUG "pcm_oss: readv: " - "recovering from SUSPEND\n"); + pcm_dbg(substream->pcm, + "pcm_oss: readv: recovering from %s\n", + runtime->status->state == SNDRV_PCM_STATE_XRUN ? + "XRUN" : "SUSPEND"); #endif ret = snd_pcm_kernel_ioctl(substream, SNDRV_PCM_IOCTL_DRAIN, NULL); if (ret < 0) @@ -1561,7 +1556,7 @@ static int snd_pcm_oss_sync1(struct snd_pcm_substream *substream, size_t size) init_waitqueue_entry(&wait, current); add_wait_queue(&runtime->sleep, &wait); #ifdef OSS_DEBUG - printk(KERN_DEBUG "sync1: size = %li\n", size); + pcm_dbg(substream->pcm, "sync1: size = %li\n", size); #endif while (1) { result = snd_pcm_oss_write2(substream, runtime->oss.buffer, size, 1); @@ -1587,7 +1582,8 @@ static int snd_pcm_oss_sync1(struct snd_pcm_substream *substream, size_t size) break; } if (res == 0) { - snd_printk(KERN_ERR "OSS sync error - DMA timeout\n"); + pcm_err(substream->pcm, + "OSS sync error - DMA timeout\n"); result = -EIO; break; } @@ -1618,7 +1614,7 @@ static int snd_pcm_oss_sync(struct snd_pcm_oss_file *pcm_oss_file) mutex_lock(&runtime->oss.params_lock); if (runtime->oss.buffer_used > 0) { #ifdef OSS_DEBUG - printk(KERN_DEBUG "sync: buffer_used\n"); + pcm_dbg(substream->pcm, "sync: buffer_used\n"); #endif size = (8 * (runtime->oss.period_bytes - runtime->oss.buffer_used) + 7) / width; snd_pcm_format_set_silence(format, @@ -1631,7 +1627,7 @@ static int snd_pcm_oss_sync(struct snd_pcm_oss_file *pcm_oss_file) } } else if (runtime->oss.period_ptr > 0) { #ifdef OSS_DEBUG - printk(KERN_DEBUG "sync: period_ptr\n"); + pcm_dbg(substream->pcm, "sync: period_ptr\n"); #endif size = runtime->oss.period_bytes - runtime->oss.period_ptr; snd_pcm_format_set_silence(format, @@ -1983,7 +1979,7 @@ static int snd_pcm_oss_set_trigger(struct snd_pcm_oss_file *pcm_oss_file, int tr int err, cmd; #ifdef OSS_DEBUG - printk(KERN_DEBUG "pcm_oss: trigger = 0x%x\n", trigger); + pcm_dbg(substream->pcm, "pcm_oss: trigger = 0x%x\n", trigger); #endif psubstream = pcm_oss_file->streams[SNDRV_PCM_STREAM_PLAYBACK]; @@ -2203,9 +2199,9 @@ static int snd_pcm_oss_get_space(struct snd_pcm_oss_file *pcm_oss_file, int stre } #ifdef OSS_DEBUG - printk(KERN_DEBUG "pcm_oss: space: bytes = %i, fragments = %i, " - "fragstotal = %i, fragsize = %i\n", - info.bytes, info.fragments, info.fragstotal, info.fragsize); + pcm_dbg(substream->pcm, + "pcm_oss: space: bytes = %i, fragments = %i, fragstotal = %i, fragsize = %i\n", + info.bytes, info.fragments, info.fragstotal, info.fragsize); #endif if (copy_to_user(_info, &info, sizeof(info))) return -EFAULT; @@ -2215,7 +2211,7 @@ static int snd_pcm_oss_get_space(struct snd_pcm_oss_file *pcm_oss_file, int stre static int snd_pcm_oss_get_mapbuf(struct snd_pcm_oss_file *pcm_oss_file, int stream, struct buffmem_desc __user * _info) { // it won't be probably implemented - // snd_printd("TODO: snd_pcm_oss_get_mapbuf\n"); + // pr_debug("TODO: snd_pcm_oss_get_mapbuf\n"); return -EINVAL; } @@ -2519,7 +2515,7 @@ static long snd_pcm_oss_ioctl(struct file *file, unsigned int cmd, unsigned long if (((cmd >> 8) & 0xff) != 'P') return -EINVAL; #ifdef OSS_DEBUG - printk(KERN_DEBUG "pcm_oss: ioctl = 0x%x\n", cmd); + pr_debug("pcm_oss: ioctl = 0x%x\n", cmd); #endif switch (cmd) { case SNDCTL_DSP_RESET: @@ -2646,7 +2642,7 @@ static long snd_pcm_oss_ioctl(struct file *file, unsigned int cmd, unsigned long case SNDCTL_DSP_PROFILE: return 0; /* silently ignore */ default: - snd_printd("pcm_oss: unknown command = 0x%x\n", cmd); + pr_debug("pcm_oss: unknown command = 0x%x\n", cmd); } return -EINVAL; } @@ -2673,8 +2669,9 @@ static ssize_t snd_pcm_oss_read(struct file *file, char __user *buf, size_t coun #else { ssize_t res = snd_pcm_oss_read1(substream, buf, count); - printk(KERN_DEBUG "pcm_oss: read %li bytes " - "(returned %li bytes)\n", (long)count, (long)res); + pcm_dbg(substream->pcm, + "pcm_oss: read %li bytes (returned %li bytes)\n", + (long)count, (long)res); return res; } #endif @@ -2693,7 +2690,7 @@ static ssize_t snd_pcm_oss_write(struct file *file, const char __user *buf, size substream->f_flags = file->f_flags & O_NONBLOCK; result = snd_pcm_oss_write1(substream, buf, count); #ifdef OSS_DEBUG - printk(KERN_DEBUG "pcm_oss: write %li bytes (wrote %li bytes)\n", + pcm_dbg(substream->pcm, "pcm_oss: write %li bytes (wrote %li bytes)\n", (long)count, (long)result); #endif return result; @@ -2772,7 +2769,7 @@ static int snd_pcm_oss_mmap(struct file *file, struct vm_area_struct *area) int err; #ifdef OSS_DEBUG - printk(KERN_DEBUG "pcm_oss: mmap begin\n"); + pr_debug("pcm_oss: mmap begin\n"); #endif pcm_oss_file = file->private_data; switch ((area->vm_flags & (VM_READ | VM_WRITE))) { @@ -2822,7 +2819,7 @@ static int snd_pcm_oss_mmap(struct file *file, struct vm_area_struct *area) runtime->silence_threshold = 0; runtime->silence_size = 0; #ifdef OSS_DEBUG - printk(KERN_DEBUG "pcm_oss: mmap ok, bytes = 0x%x\n", + pr_debug("pcm_oss: mmap ok, bytes = 0x%x\n", runtime->oss.mmap_bytes); #endif /* In mmap mode we never stop */ @@ -3007,12 +3004,10 @@ static const struct file_operations snd_pcm_oss_f_reg = static void register_oss_dsp(struct snd_pcm *pcm, int index) { - char name[128]; - sprintf(name, "dsp%i%i", pcm->card->number, pcm->device); if (snd_register_oss_device(SNDRV_OSS_DEVICE_TYPE_PCM, pcm->card, index, &snd_pcm_oss_f_reg, - pcm, name) < 0) { - snd_printk(KERN_ERR "unable to register OSS PCM device %i:%i\n", + pcm) < 0) { + pcm_err(pcm, "unable to register OSS PCM device %i:%i\n", pcm->card->number, pcm->device); } } @@ -3093,12 +3088,12 @@ static int __init alsa_pcm_oss_init(void) /* check device map table */ for (i = 0; i < SNDRV_CARDS; i++) { if (dsp_map[i] < 0 || dsp_map[i] >= SNDRV_PCM_DEVICES) { - snd_printk(KERN_ERR "invalid dsp_map[%d] = %d\n", + pr_err("ALSA: pcm_oss: invalid dsp_map[%d] = %d\n", i, dsp_map[i]); dsp_map[i] = 0; } if (adsp_map[i] < 0 || adsp_map[i] >= SNDRV_PCM_DEVICES) { - snd_printk(KERN_ERR "invalid adsp_map[%d] = %d\n", + pr_err("ALSA: pcm_oss: invalid adsp_map[%d] = %d\n", i, adsp_map[i]); adsp_map[i] = 1; } diff --git a/sound/core/pcm.c b/sound/core/pcm.c index 61798f85d03..43932e8dce6 100644 --- a/sound/core/pcm.c +++ b/sound/core/pcm.c @@ -49,6 +49,8 @@ static struct snd_pcm *snd_pcm_get(struct snd_card *card, int device) struct snd_pcm *pcm; list_for_each_entry(pcm, &snd_pcm_devices, list) { + if (pcm->internal) + continue; if (pcm->card == card && pcm->device == device) return pcm; } @@ -60,6 +62,8 @@ static int snd_pcm_next(struct snd_card *card, int device) struct snd_pcm *pcm; list_for_each_entry(pcm, &snd_pcm_devices, list) { + if (pcm->internal) + continue; if (pcm->card == card && pcm->device > device) return pcm->device; else if (pcm->card->number > card->number) @@ -209,6 +213,8 @@ static char *snd_pcm_format_names[] = { FORMAT(G723_24_1B), FORMAT(G723_40), FORMAT(G723_40_1B), + FORMAT(DSD_U8), + FORMAT(DSD_U16_LE), }; const char *snd_pcm_format_name(snd_pcm_format_t format) @@ -289,7 +295,7 @@ static const char *snd_pcm_state_name(snd_pcm_state_t state) return snd_pcm_state_names[(__force int)state]; } -#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE) +#if IS_ENABLED(CONFIG_SND_PCM_OSS) #include <linux/soundcard.h> static const char *snd_pcm_oss_format_name(int format) @@ -332,7 +338,8 @@ static void snd_pcm_proc_info_read(struct snd_pcm_substream *substream, info = kmalloc(sizeof(*info), GFP_KERNEL); if (! info) { - printk(KERN_DEBUG "snd_pcm_proc_info_read: cannot malloc\n"); + pcm_dbg(substream->pcm, + "snd_pcm_proc_info_read: cannot malloc\n"); return; } @@ -392,7 +399,7 @@ static void snd_pcm_substream_proc_hw_params_read(struct snd_info_entry *entry, snd_iprintf(buffer, "rate: %u (%u/%u)\n", runtime->rate, runtime->rate_num, runtime->rate_den); snd_iprintf(buffer, "period_size: %lu\n", runtime->period_size); snd_iprintf(buffer, "buffer_size: %lu\n", runtime->buffer_size); -#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE) +#if IS_ENABLED(CONFIG_SND_PCM_OSS) if (substream->oss.oss) { snd_iprintf(buffer, "OSS format: %s\n", snd_pcm_oss_format_name(runtime->oss.format)); snd_iprintf(buffer, "OSS channels: %u\n", runtime->oss.channels); @@ -637,7 +644,7 @@ static inline int snd_pcm_substream_proc_done(struct snd_pcm_substream *substrea * calling this, i.e. zero must be given to the argument of * snd_pcm_new(). * - * Returns zero if successful, or a negative error code on failure. + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_new_stream(struct snd_pcm *pcm, int stream, int substream_count) { @@ -645,7 +652,7 @@ int snd_pcm_new_stream(struct snd_pcm *pcm, int stream, int substream_count) struct snd_pcm_str *pstr = &pcm->streams[stream]; struct snd_pcm_substream *substream, *prev; -#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE) +#if IS_ENABLED(CONFIG_SND_PCM_OSS) mutex_init(&pstr->oss.setup_mutex); #endif pstr->stream = stream; @@ -654,7 +661,7 @@ int snd_pcm_new_stream(struct snd_pcm *pcm, int stream, int substream_count) if (substream_count > 0 && !pcm->internal) { err = snd_pcm_stream_proc_init(pstr); if (err < 0) { - snd_printk(KERN_ERR "Error in snd_pcm_stream_proc_init\n"); + pcm_err(pcm, "Error in snd_pcm_stream_proc_init\n"); return err; } } @@ -662,7 +669,7 @@ int snd_pcm_new_stream(struct snd_pcm *pcm, int stream, int substream_count) for (idx = 0, prev = NULL; idx < substream_count; idx++) { substream = kzalloc(sizeof(*substream), GFP_KERNEL); if (substream == NULL) { - snd_printk(KERN_ERR "Cannot allocate PCM substream\n"); + pcm_err(pcm, "Cannot allocate PCM substream\n"); return -ENOMEM; } substream->pcm = pcm; @@ -679,7 +686,8 @@ int snd_pcm_new_stream(struct snd_pcm *pcm, int stream, int substream_count) if (!pcm->internal) { err = snd_pcm_substream_proc_init(substream); if (err < 0) { - snd_printk(KERN_ERR "Error in snd_pcm_stream_proc_init\n"); + pcm_err(pcm, + "Error in snd_pcm_stream_proc_init\n"); if (prev == NULL) pstr->substream = NULL; else @@ -718,7 +726,7 @@ static int _snd_pcm_new(struct snd_card *card, const char *id, int device, *rpcm = NULL; pcm = kzalloc(sizeof(*pcm), GFP_KERNEL); if (pcm == NULL) { - snd_printk(KERN_ERR "Cannot allocate PCM\n"); + dev_err(card->dev, "Cannot allocate PCM\n"); return -ENOMEM; } pcm->card = card; @@ -759,7 +767,7 @@ static int _snd_pcm_new(struct snd_card *card, const char *id, int device, * The pcm operators have to be set afterwards to the new instance * via snd_pcm_set_ops(). * - * Returns zero if successful, or a negative error code on failure. + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_new(struct snd_card *card, const char *id, int device, int playback_count, int capture_count, struct snd_pcm **rpcm) @@ -787,7 +795,7 @@ EXPORT_SYMBOL(snd_pcm_new); * The pcm operators have to be set afterwards to the new instance * via snd_pcm_set_ops(). * - * Returns zero if successful, or a negative error code on failure. + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_new_internal(struct snd_card *card, const char *id, int device, int playback_count, int capture_count, @@ -801,7 +809,7 @@ EXPORT_SYMBOL(snd_pcm_new_internal); static void snd_pcm_free_stream(struct snd_pcm_str * pstr) { struct snd_pcm_substream *substream, *substream_next; -#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE) +#if IS_ENABLED(CONFIG_SND_PCM_OSS) struct snd_pcm_oss_setup *setup, *setupn; #endif substream = pstr->substream; @@ -813,7 +821,7 @@ static void snd_pcm_free_stream(struct snd_pcm_str * pstr) substream = substream_next; } snd_pcm_stream_proc_done(pstr); -#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE) +#if IS_ENABLED(CONFIG_SND_PCM_OSS) for (setup = pstr->oss.setup_list; setup; setup = setupn) { setupn = setup->next; kfree(setup->task_name); @@ -1010,8 +1018,20 @@ static ssize_t show_pcm_class(struct device *dev, return snprintf(buf, PAGE_SIZE, "%s\n", str); } -static struct device_attribute pcm_attrs = - __ATTR(pcm_class, S_IRUGO, show_pcm_class, NULL); +static DEVICE_ATTR(pcm_class, S_IRUGO, show_pcm_class, NULL); +static struct attribute *pcm_dev_attrs[] = { + &dev_attr_pcm_class.attr, + NULL +}; + +static struct attribute_group pcm_dev_attr_group = { + .attrs = pcm_dev_attrs, +}; + +static const struct attribute_group *pcm_dev_attr_groups[] = { + &pcm_dev_attr_group, + NULL +}; static int snd_pcm_dev_register(struct snd_device *device) { @@ -1061,8 +1081,18 @@ static int snd_pcm_dev_register(struct snd_device *device) mutex_unlock(®ister_mutex); return err; } - snd_add_device_sysfs_file(devtype, pcm->card, pcm->device, - &pcm_attrs); + + dev = snd_get_device(devtype, pcm->card, pcm->device); + if (dev) { + err = sysfs_create_groups(&dev->kobj, + pcm_dev_attr_groups); + if (err < 0) + dev_warn(dev, + "pcm %d:%d: cannot create sysfs groups\n", + pcm->card->number, pcm->device); + put_device(dev); + } + for (substream = pcm->streams[cidx].substream; substream; substream = substream->next) snd_pcm_timer_init(substream); } diff --git a/sound/core/pcm_dmaengine.c b/sound/core/pcm_dmaengine.c new file mode 100644 index 00000000000..76cbb9ec953 --- /dev/null +++ b/sound/core/pcm_dmaengine.c @@ -0,0 +1,369 @@ +/* + * Copyright (C) 2012, Analog Devices Inc. + * Author: Lars-Peter Clausen <lars@metafoo.de> + * + * Based on: + * imx-pcm-dma-mx2.c, Copyright 2009 Sascha Hauer <s.hauer@pengutronix.de> + * mxs-pcm.c, Copyright (C) 2011 Freescale Semiconductor, Inc. + * ep93xx-pcm.c, Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org> + * Copyright (C) 2006 Applied Data Systems + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ +#include <linux/module.h> +#include <linux/init.h> +#include <linux/dmaengine.h> +#include <linux/slab.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> + +#include <sound/dmaengine_pcm.h> + +struct dmaengine_pcm_runtime_data { + struct dma_chan *dma_chan; + dma_cookie_t cookie; + + unsigned int pos; +}; + +static inline struct dmaengine_pcm_runtime_data *substream_to_prtd( + const struct snd_pcm_substream *substream) +{ + return substream->runtime->private_data; +} + +struct dma_chan *snd_dmaengine_pcm_get_chan(struct snd_pcm_substream *substream) +{ + struct dmaengine_pcm_runtime_data *prtd = substream_to_prtd(substream); + + return prtd->dma_chan; +} +EXPORT_SYMBOL_GPL(snd_dmaengine_pcm_get_chan); + +/** + * snd_hwparams_to_dma_slave_config - Convert hw_params to dma_slave_config + * @substream: PCM substream + * @params: hw_params + * @slave_config: DMA slave config + * + * This function can be used to initialize a dma_slave_config from a substream + * and hw_params in a dmaengine based PCM driver implementation. + */ +int snd_hwparams_to_dma_slave_config(const struct snd_pcm_substream *substream, + const struct snd_pcm_hw_params *params, + struct dma_slave_config *slave_config) +{ + enum dma_slave_buswidth buswidth; + int bits; + + bits = snd_pcm_format_physical_width(params_format(params)); + if (bits < 8 || bits > 64) + return -EINVAL; + else if (bits == 8) + buswidth = DMA_SLAVE_BUSWIDTH_1_BYTE; + else if (bits == 16) + buswidth = DMA_SLAVE_BUSWIDTH_2_BYTES; + else if (bits <= 32) + buswidth = DMA_SLAVE_BUSWIDTH_4_BYTES; + else + buswidth = DMA_SLAVE_BUSWIDTH_8_BYTES; + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + slave_config->direction = DMA_MEM_TO_DEV; + slave_config->dst_addr_width = buswidth; + } else { + slave_config->direction = DMA_DEV_TO_MEM; + slave_config->src_addr_width = buswidth; + } + + slave_config->device_fc = false; + + return 0; +} +EXPORT_SYMBOL_GPL(snd_hwparams_to_dma_slave_config); + +/** + * snd_dmaengine_pcm_set_config_from_dai_data() - Initializes a dma slave config + * using DAI DMA data. + * @substream: PCM substream + * @dma_data: DAI DMA data + * @slave_config: DMA slave configuration + * + * Initializes the {dst,src}_addr, {dst,src}_maxburst, {dst,src}_addr_width and + * slave_id fields of the DMA slave config from the same fields of the DAI DMA + * data struct. The src and dst fields will be initialized depending on the + * direction of the substream. If the substream is a playback stream the dst + * fields will be initialized, if it is a capture stream the src fields will be + * initialized. The {dst,src}_addr_width field will only be initialized if the + * addr_width field of the DAI DMA data struct is not equal to + * DMA_SLAVE_BUSWIDTH_UNDEFINED. + */ +void snd_dmaengine_pcm_set_config_from_dai_data( + const struct snd_pcm_substream *substream, + const struct snd_dmaengine_dai_dma_data *dma_data, + struct dma_slave_config *slave_config) +{ + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + slave_config->dst_addr = dma_data->addr; + slave_config->dst_maxburst = dma_data->maxburst; + if (dma_data->addr_width != DMA_SLAVE_BUSWIDTH_UNDEFINED) + slave_config->dst_addr_width = dma_data->addr_width; + } else { + slave_config->src_addr = dma_data->addr; + slave_config->src_maxburst = dma_data->maxburst; + if (dma_data->addr_width != DMA_SLAVE_BUSWIDTH_UNDEFINED) + slave_config->src_addr_width = dma_data->addr_width; + } + + slave_config->slave_id = dma_data->slave_id; +} +EXPORT_SYMBOL_GPL(snd_dmaengine_pcm_set_config_from_dai_data); + +static void dmaengine_pcm_dma_complete(void *arg) +{ + struct snd_pcm_substream *substream = arg; + struct dmaengine_pcm_runtime_data *prtd = substream_to_prtd(substream); + + prtd->pos += snd_pcm_lib_period_bytes(substream); + if (prtd->pos >= snd_pcm_lib_buffer_bytes(substream)) + prtd->pos = 0; + + snd_pcm_period_elapsed(substream); +} + +static int dmaengine_pcm_prepare_and_submit(struct snd_pcm_substream *substream) +{ + struct dmaengine_pcm_runtime_data *prtd = substream_to_prtd(substream); + struct dma_chan *chan = prtd->dma_chan; + struct dma_async_tx_descriptor *desc; + enum dma_transfer_direction direction; + unsigned long flags = DMA_CTRL_ACK; + + direction = snd_pcm_substream_to_dma_direction(substream); + + if (!substream->runtime->no_period_wakeup) + flags |= DMA_PREP_INTERRUPT; + + prtd->pos = 0; + desc = dmaengine_prep_dma_cyclic(chan, + substream->runtime->dma_addr, + snd_pcm_lib_buffer_bytes(substream), + snd_pcm_lib_period_bytes(substream), direction, flags); + + if (!desc) + return -ENOMEM; + + desc->callback = dmaengine_pcm_dma_complete; + desc->callback_param = substream; + prtd->cookie = dmaengine_submit(desc); + + return 0; +} + +/** + * snd_dmaengine_pcm_trigger - dmaengine based PCM trigger implementation + * @substream: PCM substream + * @cmd: Trigger command + * + * Returns 0 on success, a negative error code otherwise. + * + * This function can be used as the PCM trigger callback for dmaengine based PCM + * driver implementations. + */ +int snd_dmaengine_pcm_trigger(struct snd_pcm_substream *substream, int cmd) +{ + struct dmaengine_pcm_runtime_data *prtd = substream_to_prtd(substream); + struct snd_pcm_runtime *runtime = substream->runtime; + int ret; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + ret = dmaengine_pcm_prepare_and_submit(substream); + if (ret) + return ret; + dma_async_issue_pending(prtd->dma_chan); + break; + case SNDRV_PCM_TRIGGER_RESUME: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + dmaengine_resume(prtd->dma_chan); + break; + case SNDRV_PCM_TRIGGER_SUSPEND: + if (runtime->info & SNDRV_PCM_INFO_PAUSE) + dmaengine_pause(prtd->dma_chan); + else + dmaengine_terminate_all(prtd->dma_chan); + break; + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + dmaengine_pause(prtd->dma_chan); + break; + case SNDRV_PCM_TRIGGER_STOP: + dmaengine_terminate_all(prtd->dma_chan); + break; + default: + return -EINVAL; + } + + return 0; +} +EXPORT_SYMBOL_GPL(snd_dmaengine_pcm_trigger); + +/** + * snd_dmaengine_pcm_pointer_no_residue - dmaengine based PCM pointer implementation + * @substream: PCM substream + * + * This function is deprecated and should not be used by new drivers, as its + * results may be unreliable. + */ +snd_pcm_uframes_t snd_dmaengine_pcm_pointer_no_residue(struct snd_pcm_substream *substream) +{ + struct dmaengine_pcm_runtime_data *prtd = substream_to_prtd(substream); + return bytes_to_frames(substream->runtime, prtd->pos); +} +EXPORT_SYMBOL_GPL(snd_dmaengine_pcm_pointer_no_residue); + +/** + * snd_dmaengine_pcm_pointer - dmaengine based PCM pointer implementation + * @substream: PCM substream + * + * This function can be used as the PCM pointer callback for dmaengine based PCM + * driver implementations. + */ +snd_pcm_uframes_t snd_dmaengine_pcm_pointer(struct snd_pcm_substream *substream) +{ + struct dmaengine_pcm_runtime_data *prtd = substream_to_prtd(substream); + struct dma_tx_state state; + enum dma_status status; + unsigned int buf_size; + unsigned int pos = 0; + + status = dmaengine_tx_status(prtd->dma_chan, prtd->cookie, &state); + if (status == DMA_IN_PROGRESS || status == DMA_PAUSED) { + buf_size = snd_pcm_lib_buffer_bytes(substream); + if (state.residue > 0 && state.residue <= buf_size) + pos = buf_size - state.residue; + } + + return bytes_to_frames(substream->runtime, pos); +} +EXPORT_SYMBOL_GPL(snd_dmaengine_pcm_pointer); + +/** + * snd_dmaengine_pcm_request_channel - Request channel for the dmaengine PCM + * @filter_fn: Filter function used to request the DMA channel + * @filter_data: Data passed to the DMA filter function + * + * Returns NULL or the requested DMA channel. + * + * This function request a DMA channel for usage with dmaengine PCM. + */ +struct dma_chan *snd_dmaengine_pcm_request_channel(dma_filter_fn filter_fn, + void *filter_data) +{ + dma_cap_mask_t mask; + + dma_cap_zero(mask); + dma_cap_set(DMA_SLAVE, mask); + dma_cap_set(DMA_CYCLIC, mask); + + return dma_request_channel(mask, filter_fn, filter_data); +} +EXPORT_SYMBOL_GPL(snd_dmaengine_pcm_request_channel); + +/** + * snd_dmaengine_pcm_open - Open a dmaengine based PCM substream + * @substream: PCM substream + * @chan: DMA channel to use for data transfers + * + * Returns 0 on success, a negative error code otherwise. + * + * The function should usually be called from the pcm open callback. Note that + * this function will use private_data field of the substream's runtime. So it + * is not availabe to your pcm driver implementation. + */ +int snd_dmaengine_pcm_open(struct snd_pcm_substream *substream, + struct dma_chan *chan) +{ + struct dmaengine_pcm_runtime_data *prtd; + int ret; + + if (!chan) + return -ENXIO; + + ret = snd_pcm_hw_constraint_integer(substream->runtime, + SNDRV_PCM_HW_PARAM_PERIODS); + if (ret < 0) + return ret; + + prtd = kzalloc(sizeof(*prtd), GFP_KERNEL); + if (!prtd) + return -ENOMEM; + + prtd->dma_chan = chan; + + substream->runtime->private_data = prtd; + + return 0; +} +EXPORT_SYMBOL_GPL(snd_dmaengine_pcm_open); + +/** + * snd_dmaengine_pcm_open_request_chan - Open a dmaengine based PCM substream and request channel + * @substream: PCM substream + * @filter_fn: Filter function used to request the DMA channel + * @filter_data: Data passed to the DMA filter function + * + * Returns 0 on success, a negative error code otherwise. + * + * This function will request a DMA channel using the passed filter function and + * data. The function should usually be called from the pcm open callback. Note + * that this function will use private_data field of the substream's runtime. So + * it is not availabe to your pcm driver implementation. + */ +int snd_dmaengine_pcm_open_request_chan(struct snd_pcm_substream *substream, + dma_filter_fn filter_fn, void *filter_data) +{ + return snd_dmaengine_pcm_open(substream, + snd_dmaengine_pcm_request_channel(filter_fn, filter_data)); +} +EXPORT_SYMBOL_GPL(snd_dmaengine_pcm_open_request_chan); + +/** + * snd_dmaengine_pcm_close - Close a dmaengine based PCM substream + * @substream: PCM substream + */ +int snd_dmaengine_pcm_close(struct snd_pcm_substream *substream) +{ + struct dmaengine_pcm_runtime_data *prtd = substream_to_prtd(substream); + + kfree(prtd); + + return 0; +} +EXPORT_SYMBOL_GPL(snd_dmaengine_pcm_close); + +/** + * snd_dmaengine_pcm_release_chan_close - Close a dmaengine based PCM substream and release channel + * @substream: PCM substream + * + * Releases the DMA channel associated with the PCM substream. + */ +int snd_dmaengine_pcm_close_release_chan(struct snd_pcm_substream *substream) +{ + struct dmaengine_pcm_runtime_data *prtd = substream_to_prtd(substream); + + dma_release_channel(prtd->dma_chan); + + return snd_dmaengine_pcm_close(substream); +} +EXPORT_SYMBOL_GPL(snd_dmaengine_pcm_close_release_chan); + +MODULE_LICENSE("GPL"); diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c index c4840ff75d0..9acc77eae48 100644 --- a/sound/core/pcm_lib.c +++ b/sound/core/pcm_lib.c @@ -174,7 +174,7 @@ static void xrun(struct snd_pcm_substream *substream) if (xrun_debug(substream, XRUN_DEBUG_BASIC)) { char name[16]; snd_pcm_debug_name(substream, name, sizeof(name)); - snd_printd(KERN_DEBUG "XRUN: %s\n", name); + pcm_warn(substream->pcm, "XRUN: %s\n", name); dump_stack_on_xrun(substream); } } @@ -184,9 +184,7 @@ static void xrun(struct snd_pcm_substream *substream) do { \ if (xrun_debug(substream, XRUN_DEBUG_BASIC)) { \ xrun_log_show(substream); \ - if (printk_ratelimit()) { \ - snd_printd("PCM: " fmt, ##args); \ - } \ + pr_err_ratelimited("ALSA: PCM: " fmt, ##args); \ dump_stack_on_xrun(substream); \ } \ } while (0) @@ -253,7 +251,7 @@ static void xrun_log_show(struct snd_pcm_substream *substream) entry = &log->entries[idx]; if (entry->period_size == 0) break; - snd_printd("hwptr log: %s: %sj=%lu, pos=%ld/%ld/%ld, " + pr_info("hwptr log: %s: %sj=%lu, pos=%ld/%ld/%ld, " "hwptr=%ld/%ld\n", name, entry->in_interrupt ? "[Q] " : "", entry->jiffies, @@ -346,10 +344,10 @@ static int snd_pcm_update_hw_ptr0(struct snd_pcm_substream *substream, char name[16]; snd_pcm_debug_name(substream, name, sizeof(name)); xrun_log_show(substream); - snd_printd(KERN_ERR "BUG: %s, pos = %ld, " - "buffer size = %ld, period size = %ld\n", - name, pos, runtime->buffer_size, - runtime->period_size); + pcm_err(substream->pcm, + "XRUN: %s, pos = %ld, buffer size = %ld, period size = %ld\n", + name, pos, runtime->buffer_size, + runtime->period_size); } pos = 0; } @@ -394,8 +392,8 @@ static int snd_pcm_update_hw_ptr0(struct snd_pcm_substream *substream, XRUN_DEBUG_PERIODUPDATE : XRUN_DEBUG_HWPTRUPDATE)) { char name[16]; snd_pcm_debug_name(substream, name, sizeof(name)); - snd_printd("%s_update: %s: pos=%u/%u/%u, " - "hwptr=%ld/%ld/%ld/%ld\n", + pcm_dbg(substream->pcm, + "%s_update: %s: pos=%u/%u/%u, hwptr=%ld/%ld/%ld/%ld\n", in_interrupt ? "period" : "hwptr", name, (unsigned int)pos, @@ -568,7 +566,8 @@ int snd_pcm_update_hw_ptr(struct snd_pcm_substream *substream) * * Sets the given PCM operators to the pcm instance. */ -void snd_pcm_set_ops(struct snd_pcm *pcm, int direction, struct snd_pcm_ops *ops) +void snd_pcm_set_ops(struct snd_pcm *pcm, int direction, + const struct snd_pcm_ops *ops) { struct snd_pcm_str *stream = &pcm->streams[direction]; struct snd_pcm_substream *substream; @@ -666,7 +665,8 @@ static inline unsigned int muldiv32(unsigned int a, unsigned int b, * The interval is changed to the range satisfying both intervals. * The interval status (min, max, integer, etc.) are evaluated. * - * Returns non-zero if the value is changed, zero if not changed. + * Return: Positive if the value is changed, zero if it's not changed, or a + * negative error code. */ int snd_interval_refine(struct snd_interval *i, const struct snd_interval *v) { @@ -865,7 +865,8 @@ void snd_interval_mulkdiv(const struct snd_interval *a, unsigned int k, * @nump: pointer to store the resultant numerator * @denp: pointer to store the resultant denominator * - * Returns non-zero if the value is changed, zero if not changed. + * Return: Positive if the value is changed, zero if it's not changed, or a + * negative error code. */ int snd_interval_ratnum(struct snd_interval *i, unsigned int rats_count, struct snd_ratnum *rats, @@ -983,7 +984,8 @@ EXPORT_SYMBOL(snd_interval_ratnum); * @nump: pointer to store the resultant numerator * @denp: pointer to store the resultant denominator * - * Returns non-zero if the value is changed, zero if not changed. + * Return: Positive if the value is changed, zero if it's not changed, or a + * negative error code. */ static int snd_interval_ratden(struct snd_interval *i, unsigned int rats_count, struct snd_ratden *rats, @@ -1082,7 +1084,8 @@ static int snd_interval_ratden(struct snd_interval *i, * When mask is non-zero, only the elements corresponding to bit 1 are * evaluated. * - * Returns non-zero if the value is changed, zero if not changed. + * Return: Positive if the value is changed, zero if it's not changed, or a + * negative error code. */ int snd_interval_list(struct snd_interval *i, unsigned int count, const unsigned int *list, unsigned int mask) @@ -1142,7 +1145,7 @@ static int snd_interval_step(struct snd_interval *i, unsigned int min, unsigned * @private: the private data pointer passed to function * @dep: the dependent variables * - * Returns zero if successful, or a negative error code on failure. + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_hw_rule_add(struct snd_pcm_runtime *runtime, unsigned int cond, int var, @@ -1200,6 +1203,8 @@ EXPORT_SYMBOL(snd_pcm_hw_rule_add); * @mask: the bitmap mask * * Apply the constraint of the given bitmap mask to a 32-bit mask parameter. + * + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_hw_constraint_mask(struct snd_pcm_runtime *runtime, snd_pcm_hw_param_t var, u_int32_t mask) @@ -1220,6 +1225,8 @@ int snd_pcm_hw_constraint_mask(struct snd_pcm_runtime *runtime, snd_pcm_hw_param * @mask: the 64bit bitmap mask * * Apply the constraint of the given bitmap mask to a 64-bit mask parameter. + * + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_hw_constraint_mask64(struct snd_pcm_runtime *runtime, snd_pcm_hw_param_t var, u_int64_t mask) @@ -1233,6 +1240,7 @@ int snd_pcm_hw_constraint_mask64(struct snd_pcm_runtime *runtime, snd_pcm_hw_par return -EINVAL; return 0; } +EXPORT_SYMBOL(snd_pcm_hw_constraint_mask64); /** * snd_pcm_hw_constraint_integer - apply an integer constraint to an interval @@ -1240,6 +1248,9 @@ int snd_pcm_hw_constraint_mask64(struct snd_pcm_runtime *runtime, snd_pcm_hw_par * @var: hw_params variable to apply the integer constraint * * Apply the constraint of integer to an interval parameter. + * + * Return: Positive if the value is changed, zero if it's not changed, or a + * negative error code. */ int snd_pcm_hw_constraint_integer(struct snd_pcm_runtime *runtime, snd_pcm_hw_param_t var) { @@ -1257,6 +1268,9 @@ EXPORT_SYMBOL(snd_pcm_hw_constraint_integer); * @max: the maximal value * * Apply the min/max range constraint to an interval parameter. + * + * Return: Positive if the value is changed, zero if it's not changed, or a + * negative error code. */ int snd_pcm_hw_constraint_minmax(struct snd_pcm_runtime *runtime, snd_pcm_hw_param_t var, unsigned int min, unsigned int max) @@ -1288,6 +1302,8 @@ static int snd_pcm_hw_rule_list(struct snd_pcm_hw_params *params, * @l: list * * Apply the list of constraints to an interval parameter. + * + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_hw_constraint_list(struct snd_pcm_runtime *runtime, unsigned int cond, @@ -1322,6 +1338,8 @@ static int snd_pcm_hw_rule_ratnums(struct snd_pcm_hw_params *params, * @cond: condition bits * @var: hw_params variable to apply the ratnums constraint * @r: struct snd_ratnums constriants + * + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_hw_constraint_ratnums(struct snd_pcm_runtime *runtime, unsigned int cond, @@ -1355,6 +1373,8 @@ static int snd_pcm_hw_rule_ratdens(struct snd_pcm_hw_params *params, * @cond: condition bits * @var: hw_params variable to apply the ratdens constraint * @r: struct snd_ratdens constriants + * + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_hw_constraint_ratdens(struct snd_pcm_runtime *runtime, unsigned int cond, @@ -1386,6 +1406,8 @@ static int snd_pcm_hw_rule_msbits(struct snd_pcm_hw_params *params, * @cond: condition bits * @width: sample bits width * @msbits: msbits width + * + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_hw_constraint_msbits(struct snd_pcm_runtime *runtime, unsigned int cond, @@ -1414,6 +1436,8 @@ static int snd_pcm_hw_rule_step(struct snd_pcm_hw_params *params, * @cond: condition bits * @var: hw_params variable to apply the step constraint * @step: step size + * + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_hw_constraint_step(struct snd_pcm_runtime *runtime, unsigned int cond, @@ -1444,6 +1468,8 @@ static int snd_pcm_hw_rule_pow2(struct snd_pcm_hw_params *params, struct snd_pcm * @runtime: PCM runtime instance * @cond: condition bits * @var: hw_params variable to apply the power-of-2 constraint + * + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_hw_constraint_pow2(struct snd_pcm_runtime *runtime, unsigned int cond, @@ -1470,6 +1496,8 @@ static int snd_pcm_hw_rule_noresample_func(struct snd_pcm_hw_params *params, * snd_pcm_hw_rule_noresample - add a rule to allow disabling hw resampling * @runtime: PCM runtime instance * @base_rate: the rate at which the hardware does not resample + * + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_hw_rule_noresample(struct snd_pcm_runtime *runtime, unsigned int base_rate) @@ -1519,8 +1547,8 @@ EXPORT_SYMBOL(_snd_pcm_hw_params_any); * @var: parameter to retrieve * @dir: pointer to the direction (-1,0,1) or %NULL * - * Return the value for field @var if it's fixed in configuration space - * defined by @params. Return -%EINVAL otherwise. + * Return: The value for field @var if it's fixed in configuration space + * defined by @params. -%EINVAL otherwise. */ int snd_pcm_hw_param_value(const struct snd_pcm_hw_params *params, snd_pcm_hw_param_t var, int *dir) @@ -1591,7 +1619,8 @@ static int _snd_pcm_hw_param_first(struct snd_pcm_hw_params *params, * * Inside configuration space defined by @params remove from @var all * values > minimum. Reduce configuration space accordingly. - * Return the minimum. + * + * Return: The minimum, or a negative error code on failure. */ int snd_pcm_hw_param_first(struct snd_pcm_substream *pcm, struct snd_pcm_hw_params *params, @@ -1637,7 +1666,8 @@ static int _snd_pcm_hw_param_last(struct snd_pcm_hw_params *params, * * Inside configuration space defined by @params remove from @var all * values < maximum. Reduce configuration space accordingly. - * Return the maximum. + * + * Return: The maximum, or a negative error code on failure. */ int snd_pcm_hw_param_last(struct snd_pcm_substream *pcm, struct snd_pcm_hw_params *params, @@ -1665,6 +1695,8 @@ EXPORT_SYMBOL(snd_pcm_hw_param_last); * The configuration chosen is that obtained fixing in this order: * first access, first format, first subformat, min channels, * min rate, min period time, max buffer size, min tick time + * + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_hw_params_choose(struct snd_pcm_substream *pcm, struct snd_pcm_hw_params *params) @@ -1771,7 +1803,7 @@ static int snd_pcm_lib_ioctl_fifo_size(struct snd_pcm_substream *substream, * Processes the generic ioctl commands for PCM. * Can be passed as the ioctl callback for PCM ops. * - * Returns zero if successful, or a negative error code on failure. + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_lib_ioctl(struct snd_pcm_substream *substream, unsigned int cmd, void *arg) @@ -1904,10 +1936,13 @@ static int wait_for_avail(struct snd_pcm_substream *substream, case SNDRV_PCM_STATE_DISCONNECTED: err = -EBADFD; goto _endloop; + case SNDRV_PCM_STATE_PAUSED: + continue; } if (!tout) { - snd_printd("%s write error (DMA or IRQ trouble?)\n", - is_playback ? "playback" : "capture"); + pcm_dbg(substream->pcm, + "%s write error (DMA or IRQ trouble?)\n", + is_playback ? "playback" : "capture"); err = -EIO; break; } @@ -2510,7 +2545,7 @@ static void pcm_chmap_ctl_private_free(struct snd_kcontrol *kcontrol) * @info_ret: store struct snd_pcm_chmap instance if non-NULL * * Create channel-mapping control elements assigned to the given PCM stream(s). - * Returns zero if succeed, or a negative error value. + * Return: Zero if successful, or a negative error value. */ int snd_pcm_add_chmap_ctls(struct snd_pcm *pcm, int stream, const struct snd_pcm_chmap_elem *chmap, diff --git a/sound/core/pcm_memory.c b/sound/core/pcm_memory.c index 69e01c4fc32..54debc07f5c 100644 --- a/sound/core/pcm_memory.c +++ b/sound/core/pcm_memory.c @@ -51,17 +51,9 @@ static const size_t snd_minimum_buffer = 16384; static int preallocate_pcm_pages(struct snd_pcm_substream *substream, size_t size) { struct snd_dma_buffer *dmab = &substream->dma_buffer; + size_t orig_size = size; int err; - /* already reserved? */ - if (snd_dma_get_reserved_buf(dmab, substream->dma_buf_id) > 0) { - if (dmab->bytes >= size) - return 0; /* yes */ - /* no, free the reserved block */ - snd_dma_free_pages(dmab); - dmab->bytes = 0; - } - do { if ((err = snd_dma_alloc_pages(dmab->dev.type, dmab->dev.dev, size, dmab)) < 0) { @@ -72,6 +64,10 @@ static int preallocate_pcm_pages(struct snd_pcm_substream *substream, size_t siz size >>= 1; } while (size >= snd_minimum_buffer); dmab->bytes = 0; /* tell error */ + pr_warn("ALSA pcmC%dD%d%c,%d:%s: cannot preallocate for size %zu\n", + substream->pcm->card->number, substream->pcm->device, + substream->stream ? 'c' : 'p', substream->number, + substream->pcm->name, orig_size); return 0; } @@ -82,10 +78,7 @@ static void snd_pcm_lib_preallocate_dma_free(struct snd_pcm_substream *substream { if (substream->dma_buffer.area == NULL) return; - if (substream->dma_buf_id) - snd_dma_reserve_buf(&substream->dma_buffer, substream->dma_buf_id); - else - snd_dma_free_pages(&substream->dma_buffer); + snd_dma_free_pages(&substream->dma_buffer); substream->dma_buffer.area = NULL; } @@ -95,7 +88,7 @@ static void snd_pcm_lib_preallocate_dma_free(struct snd_pcm_substream *substream * * Releases the pre-allocated buffer of the given substream. * - * Returns zero if successful, or a negative error code on failure. + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_lib_preallocate_free(struct snd_pcm_substream *substream) { @@ -115,7 +108,7 @@ int snd_pcm_lib_preallocate_free(struct snd_pcm_substream *substream) * * Releases all the pre-allocated buffers on the given pcm. * - * Returns zero if successful, or a negative error code on failure. + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_lib_preallocate_free_for_all(struct snd_pcm *pcm) { @@ -260,12 +253,7 @@ static int snd_pcm_lib_preallocate_pages1(struct snd_pcm_substream *substream, * * Do pre-allocation for the given DMA buffer type. * - * When substream->dma_buf_id is set, the function tries to look for - * the reserved buffer, and the buffer is not freed but reserved at - * destruction time. The dma_buf_id must be unique for all systems - * (in the same DMA buffer type) e.g. using snd_dma_pci_buf_id(). - * - * Returns zero if successful, or a negative error code on failure. + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_lib_preallocate_pages(struct snd_pcm_substream *substream, int type, struct device *data, @@ -289,7 +277,7 @@ EXPORT_SYMBOL(snd_pcm_lib_preallocate_pages); * Do pre-allocation to all substreams of the given pcm for the * specified DMA type. * - * Returns zero if successful, or a negative error code on failure. + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_lib_preallocate_pages_for_all(struct snd_pcm *pcm, int type, void *data, @@ -313,8 +301,9 @@ EXPORT_SYMBOL(snd_pcm_lib_preallocate_pages_for_all); * @substream: the pcm substream instance * @offset: the buffer offset * - * Returns the page struct at the given buffer offset. * Used as the page callback of PCM ops. + * + * Return: The page struct at the given buffer offset. %NULL on failure. */ struct page *snd_pcm_sgbuf_ops_page(struct snd_pcm_substream *substream, unsigned long offset) { @@ -337,7 +326,7 @@ EXPORT_SYMBOL(snd_pcm_sgbuf_ops_page); * Allocates the DMA buffer on the BUS type given earlier to * snd_pcm_lib_preallocate_xxx_pages(). * - * Returns 1 if the buffer is changed, 0 if not changed, or a negative + * Return: 1 if the buffer is changed, 0 if not changed, or a negative * code on failure. */ int snd_pcm_lib_malloc_pages(struct snd_pcm_substream *substream, size_t size) @@ -390,7 +379,7 @@ EXPORT_SYMBOL(snd_pcm_lib_malloc_pages); * * Releases the DMA buffer allocated via snd_pcm_lib_malloc_pages(). * - * Returns zero if successful, or a negative error code on failure. + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_lib_free_pages(struct snd_pcm_substream *substream) { @@ -437,6 +426,8 @@ EXPORT_SYMBOL(_snd_pcm_lib_alloc_vmalloc_buffer); * snd_pcm_lib_free_vmalloc_buffer - free vmalloc buffer * @substream: the substream with a buffer allocated by * snd_pcm_lib_alloc_vmalloc_buffer() + * + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_lib_free_vmalloc_buffer(struct snd_pcm_substream *substream) { @@ -458,6 +449,8 @@ EXPORT_SYMBOL(snd_pcm_lib_free_vmalloc_buffer); * @offset: offset in the buffer * * This function is to be used as the page callback in the PCM ops. + * + * Return: The page struct, or %NULL on failure. */ struct page *snd_pcm_lib_get_vmalloc_page(struct snd_pcm_substream *substream, unsigned long offset) diff --git a/sound/core/pcm_misc.c b/sound/core/pcm_misc.c index d4fc1bfbe45..4560ca0e565 100644 --- a/sound/core/pcm_misc.c +++ b/sound/core/pcm_misc.c @@ -140,6 +140,14 @@ static struct pcm_format_data pcm_formats[(INT)SNDRV_PCM_FORMAT_LAST+1] = { .width = 5, .phys = 5, .le = -1, .signd = -1, .silence = {}, }, + [SNDRV_PCM_FORMAT_DSD_U8] = { + .width = 8, .phys = 8, .le = 1, .signd = 0, + .silence = {}, + }, + [SNDRV_PCM_FORMAT_DSD_U16_LE] = { + .width = 16, .phys = 16, .le = 1, .signd = 0, + .silence = {}, + }, /* FIXME: the following three formats are not defined properly yet */ [SNDRV_PCM_FORMAT_MPEG] = { .le = -1, .signd = -1, @@ -213,7 +221,7 @@ static struct pcm_format_data pcm_formats[(INT)SNDRV_PCM_FORMAT_LAST+1] = { * snd_pcm_format_signed - Check the PCM format is signed linear * @format: the format to check * - * Returns 1 if the given PCM format is signed linear, 0 if unsigned + * Return: 1 if the given PCM format is signed linear, 0 if unsigned * linear, and a negative error code for non-linear formats. */ int snd_pcm_format_signed(snd_pcm_format_t format) @@ -232,7 +240,7 @@ EXPORT_SYMBOL(snd_pcm_format_signed); * snd_pcm_format_unsigned - Check the PCM format is unsigned linear * @format: the format to check * - * Returns 1 if the given PCM format is unsigned linear, 0 if signed + * Return: 1 if the given PCM format is unsigned linear, 0 if signed * linear, and a negative error code for non-linear formats. */ int snd_pcm_format_unsigned(snd_pcm_format_t format) @@ -251,7 +259,7 @@ EXPORT_SYMBOL(snd_pcm_format_unsigned); * snd_pcm_format_linear - Check the PCM format is linear * @format: the format to check * - * Returns 1 if the given PCM format is linear, 0 if not. + * Return: 1 if the given PCM format is linear, 0 if not. */ int snd_pcm_format_linear(snd_pcm_format_t format) { @@ -264,7 +272,7 @@ EXPORT_SYMBOL(snd_pcm_format_linear); * snd_pcm_format_little_endian - Check the PCM format is little-endian * @format: the format to check * - * Returns 1 if the given PCM format is little-endian, 0 if + * Return: 1 if the given PCM format is little-endian, 0 if * big-endian, or a negative error code if endian not specified. */ int snd_pcm_format_little_endian(snd_pcm_format_t format) @@ -283,7 +291,7 @@ EXPORT_SYMBOL(snd_pcm_format_little_endian); * snd_pcm_format_big_endian - Check the PCM format is big-endian * @format: the format to check * - * Returns 1 if the given PCM format is big-endian, 0 if + * Return: 1 if the given PCM format is big-endian, 0 if * little-endian, or a negative error code if endian not specified. */ int snd_pcm_format_big_endian(snd_pcm_format_t format) @@ -302,7 +310,7 @@ EXPORT_SYMBOL(snd_pcm_format_big_endian); * snd_pcm_format_width - return the bit-width of the format * @format: the format to check * - * Returns the bit-width of the format, or a negative error code + * Return: The bit-width of the format, or a negative error code * if unknown format. */ int snd_pcm_format_width(snd_pcm_format_t format) @@ -321,7 +329,7 @@ EXPORT_SYMBOL(snd_pcm_format_width); * snd_pcm_format_physical_width - return the physical bit-width of the format * @format: the format to check * - * Returns the physical bit-width of the format, or a negative error code + * Return: The physical bit-width of the format, or a negative error code * if unknown format. */ int snd_pcm_format_physical_width(snd_pcm_format_t format) @@ -341,7 +349,7 @@ EXPORT_SYMBOL(snd_pcm_format_physical_width); * @format: the format to check * @samples: sampling rate * - * Returns the byte size of the given samples for the format, or a + * Return: The byte size of the given samples for the format, or a * negative error code if unknown format. */ ssize_t snd_pcm_format_size(snd_pcm_format_t format, size_t samples) @@ -358,7 +366,7 @@ EXPORT_SYMBOL(snd_pcm_format_size); * snd_pcm_format_silence_64 - return the silent data in 8 bytes array * @format: the format to check * - * Returns the format pattern to fill or NULL if error. + * Return: The format pattern to fill or %NULL if error. */ const unsigned char *snd_pcm_format_silence_64(snd_pcm_format_t format) { @@ -379,7 +387,7 @@ EXPORT_SYMBOL(snd_pcm_format_silence_64); * * Sets the silence data on the buffer for the given samples. * - * Returns zero if successful, or a negative error code on failure. + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_format_set_silence(snd_pcm_format_t format, void *data, unsigned int samples) { @@ -449,7 +457,7 @@ EXPORT_SYMBOL(snd_pcm_format_set_silence); * Determines the rate_min and rate_max fields from the rates bits of * the given runtime->hw. * - * Returns zero if successful. + * Return: Zero if successful. */ int snd_pcm_limit_hw_rates(struct snd_pcm_runtime *runtime) { @@ -475,7 +483,7 @@ EXPORT_SYMBOL(snd_pcm_limit_hw_rates); * snd_pcm_rate_to_rate_bit - converts sample rate to SNDRV_PCM_RATE_xxx bit * @rate: the sample rate to convert * - * Returns the SNDRV_PCM_RATE_xxx flag that corresponds to the given rate, or + * Return: The SNDRV_PCM_RATE_xxx flag that corresponds to the given rate, or * SNDRV_PCM_RATE_KNOT for an unknown rate. */ unsigned int snd_pcm_rate_to_rate_bit(unsigned int rate) @@ -493,8 +501,8 @@ EXPORT_SYMBOL(snd_pcm_rate_to_rate_bit); * snd_pcm_rate_bit_to_rate - converts SNDRV_PCM_RATE_xxx bit to sample rate * @rate_bit: the rate bit to convert * - * Returns the sample rate that corresponds to the given SNDRV_PCM_RATE_xxx flag - * or 0 for an unknown rate bit + * Return: The sample rate that corresponds to the given SNDRV_PCM_RATE_xxx flag + * or 0 for an unknown rate bit. */ unsigned int snd_pcm_rate_bit_to_rate(unsigned int rate_bit) { @@ -506,3 +514,42 @@ unsigned int snd_pcm_rate_bit_to_rate(unsigned int rate_bit) return 0; } EXPORT_SYMBOL(snd_pcm_rate_bit_to_rate); + +static unsigned int snd_pcm_rate_mask_sanitize(unsigned int rates) +{ + if (rates & SNDRV_PCM_RATE_CONTINUOUS) + return SNDRV_PCM_RATE_CONTINUOUS; + else if (rates & SNDRV_PCM_RATE_KNOT) + return SNDRV_PCM_RATE_KNOT; + return rates; +} + +/** + * snd_pcm_rate_mask_intersect - computes the intersection between two rate masks + * @rates_a: The first rate mask + * @rates_b: The second rate mask + * + * This function computes the rates that are supported by both rate masks passed + * to the function. It will take care of the special handling of + * SNDRV_PCM_RATE_CONTINUOUS and SNDRV_PCM_RATE_KNOT. + * + * Return: A rate mask containing the rates that are supported by both rates_a + * and rates_b. + */ +unsigned int snd_pcm_rate_mask_intersect(unsigned int rates_a, + unsigned int rates_b) +{ + rates_a = snd_pcm_rate_mask_sanitize(rates_a); + rates_b = snd_pcm_rate_mask_sanitize(rates_b); + + if (rates_a & SNDRV_PCM_RATE_CONTINUOUS) + return rates_b; + else if (rates_b & SNDRV_PCM_RATE_CONTINUOUS) + return rates_a; + else if (rates_a & SNDRV_PCM_RATE_KNOT) + return rates_b; + else if (rates_b & SNDRV_PCM_RATE_KNOT) + return rates_a; + return rates_a & rates_b; +} +EXPORT_SYMBOL_GPL(snd_pcm_rate_mask_intersect); diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c index 09b4286c65f..b653ab001fb 100644 --- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@ -25,7 +25,7 @@ #include <linux/slab.h> #include <linux/time.h> #include <linux/pm_qos.h> -#include <linux/uio.h> +#include <linux/aio.h> #include <linux/dma-mapping.h> #include <sound/core.h> #include <sound/control.h> @@ -190,12 +190,12 @@ int snd_pcm_hw_refine(struct snd_pcm_substream *substream, if (!(params->rmask & (1 << k))) continue; #ifdef RULES_DEBUG - printk(KERN_DEBUG "%s = ", snd_pcm_hw_param_names[k]); - printk("%04x%04x%04x%04x -> ", m->bits[3], m->bits[2], m->bits[1], m->bits[0]); + pr_debug("%s = ", snd_pcm_hw_param_names[k]); + pr_cont("%04x%04x%04x%04x -> ", m->bits[3], m->bits[2], m->bits[1], m->bits[0]); #endif changed = snd_mask_refine(m, constrs_mask(constrs, k)); #ifdef RULES_DEBUG - printk("%04x%04x%04x%04x\n", m->bits[3], m->bits[2], m->bits[1], m->bits[0]); + pr_cont("%04x%04x%04x%04x\n", m->bits[3], m->bits[2], m->bits[1], m->bits[0]); #endif if (changed) params->cmask |= 1 << k; @@ -210,21 +210,21 @@ int snd_pcm_hw_refine(struct snd_pcm_substream *substream, if (!(params->rmask & (1 << k))) continue; #ifdef RULES_DEBUG - printk(KERN_DEBUG "%s = ", snd_pcm_hw_param_names[k]); + pr_debug("%s = ", snd_pcm_hw_param_names[k]); if (i->empty) - printk("empty"); + pr_cont("empty"); else - printk("%c%u %u%c", + pr_cont("%c%u %u%c", i->openmin ? '(' : '[', i->min, i->max, i->openmax ? ')' : ']'); - printk(" -> "); + pr_cont(" -> "); #endif changed = snd_interval_refine(i, constrs_interval(constrs, k)); #ifdef RULES_DEBUG if (i->empty) - printk("empty\n"); + pr_cont("empty\n"); else - printk("%c%u %u%c\n", + pr_cont("%c%u %u%c\n", i->openmin ? '(' : '[', i->min, i->max, i->openmax ? ')' : ']'); #endif @@ -255,18 +255,18 @@ int snd_pcm_hw_refine(struct snd_pcm_substream *substream, if (!doit) continue; #ifdef RULES_DEBUG - printk(KERN_DEBUG "Rule %d [%p]: ", k, r->func); + pr_debug("Rule %d [%p]: ", k, r->func); if (r->var >= 0) { - printk("%s = ", snd_pcm_hw_param_names[r->var]); + pr_cont("%s = ", snd_pcm_hw_param_names[r->var]); if (hw_is_mask(r->var)) { m = hw_param_mask(params, r->var); - printk("%x", *m->bits); + pr_cont("%x", *m->bits); } else { i = hw_param_interval(params, r->var); if (i->empty) - printk("empty"); + pr_cont("empty"); else - printk("%c%u %u%c", + pr_cont("%c%u %u%c", i->openmin ? '(' : '[', i->min, i->max, i->openmax ? ')' : ']'); } @@ -275,19 +275,19 @@ int snd_pcm_hw_refine(struct snd_pcm_substream *substream, changed = r->func(params, r); #ifdef RULES_DEBUG if (r->var >= 0) { - printk(" -> "); + pr_cont(" -> "); if (hw_is_mask(r->var)) - printk("%x", *m->bits); + pr_cont("%x", *m->bits); else { if (i->empty) - printk("empty"); + pr_cont("empty"); else - printk("%c%u %u%c", + pr_cont("%c%u %u%c", i->openmin ? '(' : '[', i->min, i->max, i->openmax ? ')' : ']'); } } - printk("\n"); + pr_cont("\n"); #endif rstamps[k] = stamp; if (changed && r->var >= 0) { @@ -399,7 +399,7 @@ static int snd_pcm_hw_params(struct snd_pcm_substream *substream, return -EBADFD; } snd_pcm_stream_unlock_irq(substream); -#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE) +#if IS_ENABLED(CONFIG_SND_PCM_OSS) if (!substream->oss.oss) #endif if (atomic_read(&substream->mmap_count)) @@ -898,6 +898,8 @@ static struct action_ops snd_pcm_action_start = { /** * snd_pcm_start - start all linked streams * @substream: the PCM substream instance + * + * Return: Zero if successful, or a negative error code. */ int snd_pcm_start(struct snd_pcm_substream *substream) { @@ -951,6 +953,8 @@ static struct action_ops snd_pcm_action_stop = { * @state: PCM state after stopping the stream * * The state of each stream is then changed to the given state unconditionally. + * + * Return: Zero if successful, or a negative error code. */ int snd_pcm_stop(struct snd_pcm_substream *substream, snd_pcm_state_t state) { @@ -965,6 +969,8 @@ EXPORT_SYMBOL(snd_pcm_stop); * * After stopping, the state is changed to SETUP. * Unlike snd_pcm_stop(), this affects only the given stream. + * + * Return: Zero if succesful, or a negative error code. */ int snd_pcm_drain_done(struct snd_pcm_substream *substream) { @@ -1098,6 +1104,9 @@ static struct action_ops snd_pcm_action_suspend = { * @substream: the PCM substream * * After this call, all streams are changed to SUSPENDED state. + * + * Return: Zero if successful (or @substream is %NULL), or a negative error + * code. */ int snd_pcm_suspend(struct snd_pcm_substream *substream) { @@ -1120,6 +1129,8 @@ EXPORT_SYMBOL(snd_pcm_suspend); * @pcm: the PCM instance * * After this call, all streams are changed to SUSPENDED state. + * + * Return: Zero if successful (or @pcm is %NULL), or a negative error code. */ int snd_pcm_suspend_all(struct snd_pcm *pcm) { @@ -1343,6 +1354,8 @@ static struct action_ops snd_pcm_action_prepare = { * snd_pcm_prepare - prepare the PCM substream to be triggerable * @substream: the PCM substream instance * @file: file to refer f_flags + * + * Return: Zero if successful, or a negative error code. */ static int snd_pcm_prepare(struct snd_pcm_substream *substream, struct file *file) @@ -1528,7 +1541,8 @@ static int snd_pcm_drain(struct snd_pcm_substream *substream, if (substream->runtime->status->state == SNDRV_PCM_STATE_SUSPENDED) result = -ESTRPIPE; else { - snd_printd("playback drain error (DMA or IRQ trouble?)\n"); + dev_dbg(substream->pcm->card->dev, + "playback drain error (DMA or IRQ trouble?)\n"); snd_pcm_stop(substream, SNDRV_PCM_STATE_SETUP); result = -EIO; } @@ -1576,29 +1590,16 @@ static int snd_pcm_drop(struct snd_pcm_substream *substream) } -/* WARNING: Don't forget to fput back the file */ -static struct file *snd_pcm_file_fd(int fd, int *fput_needed) +static bool is_pcm_file(struct file *file) { - struct file *file; - struct inode *inode; + struct inode *inode = file_inode(file); unsigned int minor; - file = fget_light(fd, fput_needed); - if (!file) - return NULL; - inode = file->f_path.dentry->d_inode; - if (!S_ISCHR(inode->i_mode) || - imajor(inode) != snd_major) { - fput_light(file, *fput_needed); - return NULL; - } + if (!S_ISCHR(inode->i_mode) || imajor(inode) != snd_major) + return false; minor = iminor(inode); - if (!snd_lookup_minor_data(minor, SNDRV_DEVICE_TYPE_PCM_PLAYBACK) && - !snd_lookup_minor_data(minor, SNDRV_DEVICE_TYPE_PCM_CAPTURE)) { - fput_light(file, *fput_needed); - return NULL; - } - return file; + return snd_lookup_minor_data(minor, SNDRV_DEVICE_TYPE_PCM_PLAYBACK) || + snd_lookup_minor_data(minor, SNDRV_DEVICE_TYPE_PCM_CAPTURE); } /* @@ -1607,16 +1608,18 @@ static struct file *snd_pcm_file_fd(int fd, int *fput_needed) static int snd_pcm_link(struct snd_pcm_substream *substream, int fd) { int res = 0; - struct file *file; struct snd_pcm_file *pcm_file; struct snd_pcm_substream *substream1; struct snd_pcm_group *group; - int fput_needed; + struct fd f = fdget(fd); - file = snd_pcm_file_fd(fd, &fput_needed); - if (!file) + if (!f.file) return -EBADFD; - pcm_file = file->private_data; + if (!is_pcm_file(f.file)) { + res = -EBADFD; + goto _badf; + } + pcm_file = f.file->private_data; substream1 = pcm_file->substream; group = kmalloc(sizeof(*group), GFP_KERNEL); if (!group) { @@ -1636,6 +1639,7 @@ static int snd_pcm_link(struct snd_pcm_substream *substream, int fd) } if (!snd_pcm_stream_linked(substream)) { substream->group = group; + group = NULL; spin_lock_init(&substream->group->lock); INIT_LIST_HEAD(&substream->group->substreams); list_add_tail(&substream->link_list, &substream->group->substreams); @@ -1649,9 +1653,9 @@ static int snd_pcm_link(struct snd_pcm_substream *substream, int fd) up_write(&snd_pcm_link_rwsem); _nolock: snd_card_unref(substream1->pcm->card); - fput_light(file, fput_needed); - if (res < 0) - kfree(group); + kfree(group); + _badf: + fdput(f); return res; } @@ -2063,7 +2067,7 @@ int snd_pcm_open_substream(struct snd_pcm *pcm, int stream, err = snd_pcm_hw_constraints_init(substream); if (err < 0) { - snd_printd("snd_pcm_hw_constraints_init failed\n"); + pcm_dbg(pcm, "snd_pcm_hw_constraints_init failed\n"); goto error; } @@ -2074,7 +2078,7 @@ int snd_pcm_open_substream(struct snd_pcm *pcm, int stream, err = snd_pcm_hw_constraints_complete(substream); if (err < 0) { - snd_printd("snd_pcm_hw_constraints_complete failed\n"); + pcm_dbg(pcm, "snd_pcm_hw_constraints_complete failed\n"); goto error; } @@ -2425,6 +2429,7 @@ static int snd_pcm_hwsync(struct snd_pcm_substream *substream) case SNDRV_PCM_STATE_DRAINING: if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) goto __badfd; + /* Fall through */ case SNDRV_PCM_STATE_RUNNING: if ((err = snd_pcm_update_hw_ptr(substream)) < 0) break; @@ -2457,6 +2462,7 @@ static int snd_pcm_delay(struct snd_pcm_substream *substream, case SNDRV_PCM_STATE_DRAINING: if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) goto __badfd; + /* Fall through */ case SNDRV_PCM_STATE_RUNNING: if ((err = snd_pcm_update_hw_ptr(substream)) < 0) break; @@ -2604,7 +2610,7 @@ static int snd_pcm_common_ioctl1(struct file *file, return res; } } - snd_printd("unknown ioctl = 0x%x\n", cmd); + pcm_dbg(substream->pcm, "unknown ioctl = 0x%x\n", cmd); return -ENOTTY; } @@ -3196,6 +3202,14 @@ int snd_pcm_lib_default_mmap(struct snd_pcm_substream *substream, struct vm_area_struct *area) { area->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP; +#ifdef CONFIG_GENERIC_ALLOCATOR + if (substream->dma_buffer.dev.type == SNDRV_DMA_TYPE_DEV_IRAM) { + area->vm_page_prot = pgprot_writecombine(area->vm_page_prot); + return remap_pfn_range(area, area->vm_start, + substream->dma_buffer.addr >> PAGE_SHIFT, + area->vm_end - area->vm_start, area->vm_page_prot); + } +#endif /* CONFIG_GENERIC_ALLOCATOR */ #ifdef ARCH_HAS_DMA_MMAP_COHERENT if (!substream->ops->page && substream->dma_buffer.dev.type == SNDRV_DMA_TYPE_DEV) @@ -3222,18 +3236,10 @@ EXPORT_SYMBOL_GPL(snd_pcm_lib_default_mmap); int snd_pcm_lib_mmap_iomem(struct snd_pcm_substream *substream, struct vm_area_struct *area) { - long size; - unsigned long offset; + struct snd_pcm_runtime *runtime = substream->runtime;; area->vm_page_prot = pgprot_noncached(area->vm_page_prot); - area->vm_flags |= VM_IO; - size = area->vm_end - area->vm_start; - offset = area->vm_pgoff << PAGE_SHIFT; - if (io_remap_pfn_range(area, area->vm_start, - (substream->runtime->dma_addr + offset) >> PAGE_SHIFT, - size, area->vm_page_prot)) - return -EAGAIN; - return 0; + return vm_iomap_memory(area, runtime->dma_addr, runtime->dma_bytes); } EXPORT_SYMBOL(snd_pcm_lib_mmap_iomem); diff --git a/sound/core/pcm_timer.c b/sound/core/pcm_timer.c index b01d9481d63..20ecd8f1808 100644 --- a/sound/core/pcm_timer.c +++ b/sound/core/pcm_timer.c @@ -53,7 +53,9 @@ void snd_pcm_timer_resolution_change(struct snd_pcm_substream *substream) post *= 2; } if (rate == 0) { - snd_printk(KERN_ERR "pcm timer resolution out of range (rate = %u, period_size = %lu)\n", runtime->rate, runtime->period_size); + pcm_err(substream->pcm, + "pcm timer resolution out of range (rate = %u, period_size = %lu)\n", + runtime->rate, runtime->period_size); runtime->timer_resolution = -1; return; } diff --git a/sound/core/rawmidi.c b/sound/core/rawmidi.c index 1bb95aeea08..6fc71a4c8a5 100644 --- a/sound/core/rawmidi.c +++ b/sound/core/rawmidi.c @@ -56,6 +56,13 @@ static int snd_rawmidi_dev_disconnect(struct snd_device *device); static LIST_HEAD(snd_rawmidi_devices); static DEFINE_MUTEX(register_mutex); +#define rmidi_err(rmidi, fmt, args...) \ + dev_err((rmidi)->card->dev, fmt, ##args) +#define rmidi_warn(rmidi, fmt, args...) \ + dev_warn((rmidi)->card->dev, fmt, ##args) +#define rmidi_dbg(rmidi, fmt, args...) \ + dev_dbg((rmidi)->card->dev, fmt, ##args) + static struct snd_rawmidi *snd_rawmidi_search(struct snd_card *card, int device) { struct snd_rawmidi *rawmidi; @@ -165,6 +172,7 @@ int snd_rawmidi_drop_output(struct snd_rawmidi_substream *substream) spin_unlock_irqrestore(&runtime->lock, flags); return 0; } +EXPORT_SYMBOL(snd_rawmidi_drop_output); int snd_rawmidi_drain_output(struct snd_rawmidi_substream *substream) { @@ -180,7 +188,9 @@ int snd_rawmidi_drain_output(struct snd_rawmidi_substream *substream) if (signal_pending(current)) err = -ERESTARTSYS; if (runtime->avail < runtime->buffer_size && !timeout) { - snd_printk(KERN_WARNING "rawmidi drain error (avail = %li, buffer_size = %li)\n", (long)runtime->avail, (long)runtime->buffer_size); + rmidi_warn(substream->rmidi, + "rawmidi drain error (avail = %li, buffer_size = %li)\n", + (long)runtime->avail, (long)runtime->buffer_size); err = -EIO; } runtime->drain = 0; @@ -194,6 +204,7 @@ int snd_rawmidi_drain_output(struct snd_rawmidi_substream *substream) } return err; } +EXPORT_SYMBOL(snd_rawmidi_drain_output); int snd_rawmidi_drain_input(struct snd_rawmidi_substream *substream) { @@ -208,6 +219,7 @@ int snd_rawmidi_drain_input(struct snd_rawmidi_substream *substream) spin_unlock_irqrestore(&runtime->lock, flags); return 0; } +EXPORT_SYMBOL(snd_rawmidi_drain_input); /* look for an available substream for the given stream direction; * if a specific subdevice is given, try to assign it @@ -345,6 +357,7 @@ int snd_rawmidi_kernel_open(struct snd_card *card, int device, int subdevice, module_put(rmidi->card->module); return err; } +EXPORT_SYMBOL(snd_rawmidi_kernel_open); static int snd_rawmidi_open(struct inode *inode, struct file *file) { @@ -523,6 +536,7 @@ int snd_rawmidi_kernel_release(struct snd_rawmidi_file *rfile) module_put(rmidi->card->module); return 0; } +EXPORT_SYMBOL(snd_rawmidi_kernel_release); static int snd_rawmidi_release(struct inode *inode, struct file *file) { @@ -599,6 +613,7 @@ int snd_rawmidi_info_select(struct snd_card *card, struct snd_rawmidi_info *info } return -ENXIO; } +EXPORT_SYMBOL(snd_rawmidi_info_select); static int snd_rawmidi_info_select_user(struct snd_card *card, struct snd_rawmidi_info __user *_info) @@ -646,6 +661,7 @@ int snd_rawmidi_output_params(struct snd_rawmidi_substream *substream, substream->active_sensing = !params->no_active_sensing; return 0; } +EXPORT_SYMBOL(snd_rawmidi_output_params); int snd_rawmidi_input_params(struct snd_rawmidi_substream *substream, struct snd_rawmidi_params * params) @@ -671,6 +687,7 @@ int snd_rawmidi_input_params(struct snd_rawmidi_substream *substream, runtime->avail_min = params->avail_min; return 0; } +EXPORT_SYMBOL(snd_rawmidi_input_params); static int snd_rawmidi_output_status(struct snd_rawmidi_substream *substream, struct snd_rawmidi_status * status) @@ -802,10 +819,9 @@ static long snd_rawmidi_ioctl(struct file *file, unsigned int cmd, unsigned long return -EINVAL; } } -#ifdef CONFIG_SND_DEBUG default: - snd_printk(KERN_WARNING "rawmidi: unknown command = 0x%x\n", cmd); -#endif + rmidi_dbg(rfile->rmidi, + "rawmidi: unknown command = 0x%x\n", cmd); } return -ENOTTY; } @@ -863,7 +879,7 @@ static int snd_rawmidi_control_ioctl(struct snd_card *card, * * Reads the data from the internal buffer. * - * Returns the size of read data, or a negative error code on failure. + * Return: The size of read data, or a negative error code on failure. */ int snd_rawmidi_receive(struct snd_rawmidi_substream *substream, const unsigned char *buffer, int count) @@ -875,7 +891,8 @@ int snd_rawmidi_receive(struct snd_rawmidi_substream *substream, if (!substream->opened) return -EBADFD; if (runtime->buffer == NULL) { - snd_printd("snd_rawmidi_receive: input is not active!!!\n"); + rmidi_dbg(substream->rmidi, + "snd_rawmidi_receive: input is not active!!!\n"); return -EINVAL; } spin_lock_irqsave(&runtime->lock, flags); @@ -926,6 +943,7 @@ int snd_rawmidi_receive(struct snd_rawmidi_substream *substream, spin_unlock_irqrestore(&runtime->lock, flags); return result; } +EXPORT_SYMBOL(snd_rawmidi_receive); static long snd_rawmidi_kernel_read1(struct snd_rawmidi_substream *substream, unsigned char __user *userbuf, @@ -968,6 +986,7 @@ long snd_rawmidi_kernel_read(struct snd_rawmidi_substream *substream, snd_rawmidi_input_trigger(substream, 1); return snd_rawmidi_kernel_read1(substream, NULL/*userbuf*/, buf, count); } +EXPORT_SYMBOL(snd_rawmidi_kernel_read); static ssize_t snd_rawmidi_read(struct file *file, char __user *buf, size_t count, loff_t *offset) @@ -1024,8 +1043,8 @@ static ssize_t snd_rawmidi_read(struct file *file, char __user *buf, size_t coun /** * snd_rawmidi_transmit_empty - check whether the output buffer is empty * @substream: the rawmidi substream - * - * Returns 1 if the internal output buffer is empty, 0 if not. + * + * Return: 1 if the internal output buffer is empty, 0 if not. */ int snd_rawmidi_transmit_empty(struct snd_rawmidi_substream *substream) { @@ -1034,7 +1053,8 @@ int snd_rawmidi_transmit_empty(struct snd_rawmidi_substream *substream) unsigned long flags; if (runtime->buffer == NULL) { - snd_printd("snd_rawmidi_transmit_empty: output is not active!!!\n"); + rmidi_dbg(substream->rmidi, + "snd_rawmidi_transmit_empty: output is not active!!!\n"); return 1; } spin_lock_irqsave(&runtime->lock, flags); @@ -1042,6 +1062,7 @@ int snd_rawmidi_transmit_empty(struct snd_rawmidi_substream *substream) spin_unlock_irqrestore(&runtime->lock, flags); return result; } +EXPORT_SYMBOL(snd_rawmidi_transmit_empty); /** * snd_rawmidi_transmit_peek - copy data from the internal buffer @@ -1055,7 +1076,7 @@ int snd_rawmidi_transmit_empty(struct snd_rawmidi_substream *substream) * and call snd_rawmidi_transmit_ack() after the transmission is * finished. * - * Returns the size of copied data, or a negative error code on failure. + * Return: The size of copied data, or a negative error code on failure. */ int snd_rawmidi_transmit_peek(struct snd_rawmidi_substream *substream, unsigned char *buffer, int count) @@ -1065,7 +1086,8 @@ int snd_rawmidi_transmit_peek(struct snd_rawmidi_substream *substream, struct snd_rawmidi_runtime *runtime = substream->runtime; if (runtime->buffer == NULL) { - snd_printd("snd_rawmidi_transmit_peek: output is not active!!!\n"); + rmidi_dbg(substream->rmidi, + "snd_rawmidi_transmit_peek: output is not active!!!\n"); return -EINVAL; } result = 0; @@ -1097,17 +1119,18 @@ int snd_rawmidi_transmit_peek(struct snd_rawmidi_substream *substream, spin_unlock_irqrestore(&runtime->lock, flags); return result; } +EXPORT_SYMBOL(snd_rawmidi_transmit_peek); /** * snd_rawmidi_transmit_ack - acknowledge the transmission * @substream: the rawmidi substream - * @count: the tranferred count + * @count: the transferred count * * Advances the hardware pointer for the internal output buffer with * the given size and updates the condition. * Call after the transmission is finished. * - * Returns the advanced size if successful, or a negative error code on failure. + * Return: The advanced size if successful, or a negative error code on failure. */ int snd_rawmidi_transmit_ack(struct snd_rawmidi_substream *substream, int count) { @@ -1115,7 +1138,8 @@ int snd_rawmidi_transmit_ack(struct snd_rawmidi_substream *substream, int count) struct snd_rawmidi_runtime *runtime = substream->runtime; if (runtime->buffer == NULL) { - snd_printd("snd_rawmidi_transmit_ack: output is not active!!!\n"); + rmidi_dbg(substream->rmidi, + "snd_rawmidi_transmit_ack: output is not active!!!\n"); return -EINVAL; } spin_lock_irqsave(&runtime->lock, flags); @@ -1131,6 +1155,7 @@ int snd_rawmidi_transmit_ack(struct snd_rawmidi_substream *substream, int count) spin_unlock_irqrestore(&runtime->lock, flags); return count; } +EXPORT_SYMBOL(snd_rawmidi_transmit_ack); /** * snd_rawmidi_transmit - copy from the buffer to the device @@ -1140,7 +1165,7 @@ int snd_rawmidi_transmit_ack(struct snd_rawmidi_substream *substream, int count) * * Copies data from the buffer to the device and advances the pointer. * - * Returns the copied size if successful, or a negative error code on failure. + * Return: The copied size if successful, or a negative error code on failure. */ int snd_rawmidi_transmit(struct snd_rawmidi_substream *substream, unsigned char *buffer, int count) @@ -1152,6 +1177,7 @@ int snd_rawmidi_transmit(struct snd_rawmidi_substream *substream, return count; return snd_rawmidi_transmit_ack(substream, count); } +EXPORT_SYMBOL(snd_rawmidi_transmit); static long snd_rawmidi_kernel_write1(struct snd_rawmidi_substream *substream, const unsigned char __user *userbuf, @@ -1213,6 +1239,7 @@ long snd_rawmidi_kernel_write(struct snd_rawmidi_substream *substream, { return snd_rawmidi_kernel_write1(substream, NULL, buf, count); } +EXPORT_SYMBOL(snd_rawmidi_kernel_write); static ssize_t snd_rawmidi_write(struct file *file, const char __user *buf, size_t count, loff_t *offset) @@ -1413,7 +1440,7 @@ static int snd_rawmidi_alloc_substreams(struct snd_rawmidi *rmidi, for (idx = 0; idx < count; idx++) { substream = kzalloc(sizeof(*substream), GFP_KERNEL); if (substream == NULL) { - snd_printk(KERN_ERR "rawmidi: cannot allocate substream\n"); + rmidi_err(rmidi, "rawmidi: cannot allocate substream\n"); return -ENOMEM; } substream->stream = direction; @@ -1438,7 +1465,7 @@ static int snd_rawmidi_alloc_substreams(struct snd_rawmidi *rmidi, * Creates a new rawmidi instance. * Use snd_rawmidi_set_ops() to set the operators to the new instance. * - * Returns zero if successful, or a negative error code on failure. + * Return: Zero if successful, or a negative error code on failure. */ int snd_rawmidi_new(struct snd_card *card, char *id, int device, int output_count, int input_count, @@ -1458,7 +1485,7 @@ int snd_rawmidi_new(struct snd_card *card, char *id, int device, *rrawmidi = NULL; rmidi = kzalloc(sizeof(*rmidi), GFP_KERNEL); if (rmidi == NULL) { - snd_printk(KERN_ERR "rawmidi: cannot allocate\n"); + dev_err(card->dev, "rawmidi: cannot allocate\n"); return -ENOMEM; } rmidi->card = card; @@ -1492,6 +1519,7 @@ int snd_rawmidi_new(struct snd_card *card, char *id, int device, *rrawmidi = rmidi; return 0; } +EXPORT_SYMBOL(snd_rawmidi_new); static void snd_rawmidi_free_substreams(struct snd_rawmidi_str *stream) { @@ -1557,7 +1585,8 @@ static int snd_rawmidi_dev_register(struct snd_device *device) if ((err = snd_register_device(SNDRV_DEVICE_TYPE_RAWMIDI, rmidi->card, rmidi->device, &snd_rawmidi_f_ops, rmidi, name)) < 0) { - snd_printk(KERN_ERR "unable to register rawmidi device %i:%i\n", rmidi->card->number, rmidi->device); + rmidi_err(rmidi, "unable to register rawmidi device %i:%i\n", + rmidi->card->number, rmidi->device); list_del(&rmidi->list); mutex_unlock(®ister_mutex); return err; @@ -1574,8 +1603,10 @@ static int snd_rawmidi_dev_register(struct snd_device *device) if ((int)rmidi->device == midi_map[rmidi->card->number]) { if (snd_register_oss_device(SNDRV_OSS_DEVICE_TYPE_MIDI, rmidi->card, 0, &snd_rawmidi_f_ops, - rmidi, name) < 0) { - snd_printk(KERN_ERR "unable to register OSS rawmidi device %i:%i\n", rmidi->card->number, 0); + rmidi) < 0) { + rmidi_err(rmidi, + "unable to register OSS rawmidi device %i:%i\n", + rmidi->card->number, 0); } else { rmidi->ossreg++; #ifdef SNDRV_OSS_INFO_DEV_MIDI @@ -1586,8 +1617,10 @@ static int snd_rawmidi_dev_register(struct snd_device *device) if ((int)rmidi->device == amidi_map[rmidi->card->number]) { if (snd_register_oss_device(SNDRV_OSS_DEVICE_TYPE_MIDI, rmidi->card, 1, &snd_rawmidi_f_ops, - rmidi, name) < 0) { - snd_printk(KERN_ERR "unable to register OSS rawmidi device %i:%i\n", rmidi->card->number, 1); + rmidi) < 0) { + rmidi_err(rmidi, + "unable to register OSS rawmidi device %i:%i\n", + rmidi->card->number, 1); } else { rmidi->ossreg++; } @@ -1670,6 +1703,7 @@ void snd_rawmidi_set_ops(struct snd_rawmidi *rmidi, int stream, list_for_each_entry(substream, &rmidi->streams[stream].substreams, list) substream->ops = ops; } +EXPORT_SYMBOL(snd_rawmidi_set_ops); /* * ENTRY functions @@ -1685,11 +1719,13 @@ static int __init alsa_rawmidi_init(void) /* check device map table */ for (i = 0; i < SNDRV_CARDS; i++) { if (midi_map[i] < 0 || midi_map[i] >= SNDRV_RAWMIDI_DEVICES) { - snd_printk(KERN_ERR "invalid midi_map[%d] = %d\n", i, midi_map[i]); + pr_err("ALSA: rawmidi: invalid midi_map[%d] = %d\n", + i, midi_map[i]); midi_map[i] = 0; } if (amidi_map[i] < 0 || amidi_map[i] >= SNDRV_RAWMIDI_DEVICES) { - snd_printk(KERN_ERR "invalid amidi_map[%d] = %d\n", i, amidi_map[i]); + pr_err("ALSA: rawmidi: invalid amidi_map[%d] = %d\n", + i, amidi_map[i]); amidi_map[i] = 1; } } @@ -1706,21 +1742,3 @@ static void __exit alsa_rawmidi_exit(void) module_init(alsa_rawmidi_init) module_exit(alsa_rawmidi_exit) - -EXPORT_SYMBOL(snd_rawmidi_output_params); -EXPORT_SYMBOL(snd_rawmidi_input_params); -EXPORT_SYMBOL(snd_rawmidi_drop_output); -EXPORT_SYMBOL(snd_rawmidi_drain_output); -EXPORT_SYMBOL(snd_rawmidi_drain_input); -EXPORT_SYMBOL(snd_rawmidi_receive); -EXPORT_SYMBOL(snd_rawmidi_transmit_empty); -EXPORT_SYMBOL(snd_rawmidi_transmit_peek); -EXPORT_SYMBOL(snd_rawmidi_transmit_ack); -EXPORT_SYMBOL(snd_rawmidi_transmit); -EXPORT_SYMBOL(snd_rawmidi_new); -EXPORT_SYMBOL(snd_rawmidi_set_ops); -EXPORT_SYMBOL(snd_rawmidi_info_select); -EXPORT_SYMBOL(snd_rawmidi_kernel_open); -EXPORT_SYMBOL(snd_rawmidi_kernel_release); -EXPORT_SYMBOL(snd_rawmidi_kernel_read); -EXPORT_SYMBOL(snd_rawmidi_kernel_write); diff --git a/sound/core/rtctimer.c b/sound/core/rtctimer.c index e85e72baff9..f3420d11a12 100644 --- a/sound/core/rtctimer.c +++ b/sound/core/rtctimer.c @@ -27,7 +27,7 @@ #include <sound/core.h> #include <sound/timer.h> -#if defined(CONFIG_RTC) || defined(CONFIG_RTC_MODULE) +#if IS_ENABLED(CONFIG_RTC) #include <linux/mc146818rtc.h> @@ -132,8 +132,7 @@ static int __init rtctimer_init(void) if (rtctimer_freq < 2 || rtctimer_freq > 8192 || !is_power_of_2(rtctimer_freq)) { - snd_printk(KERN_ERR "rtctimer: invalid frequency %d\n", - rtctimer_freq); + pr_err("ALSA: rtctimer: invalid frequency %d\n", rtctimer_freq); return -EINVAL; } @@ -185,4 +184,4 @@ MODULE_LICENSE("GPL"); MODULE_ALIAS("snd-timer-" __stringify(SNDRV_TIMER_GLOBAL_RTC)); -#endif /* CONFIG_RTC || CONFIG_RTC_MODULE */ +#endif /* IS_ENABLED(CONFIG_RTC) */ diff --git a/sound/core/seq/oss/seq_oss.c b/sound/core/seq/oss/seq_oss.c index 8d4d5e853ef..16d42679e43 100644 --- a/sound/core/seq/oss/seq_oss.c +++ b/sound/core/seq/oss/seq_oss.c @@ -39,12 +39,6 @@ MODULE_LICENSE("GPL"); MODULE_ALIAS_SNDRV_MINOR(SNDRV_MINOR_OSS_SEQUENCER); MODULE_ALIAS_SNDRV_MINOR(SNDRV_MINOR_OSS_MUSIC); -#ifdef SNDRV_SEQ_OSS_DEBUG -module_param(seq_oss_debug, int, 0644); -MODULE_PARM_DESC(seq_oss_debug, "debug option"); -int seq_oss_debug = 0; -#endif - /* * prototypes @@ -231,22 +225,19 @@ register_device(void) mutex_lock(®ister_mutex); if ((rc = snd_register_oss_device(SNDRV_OSS_DEVICE_TYPE_SEQUENCER, NULL, 0, - &seq_oss_f_ops, NULL, - SNDRV_SEQ_OSS_DEVNAME)) < 0) { - snd_printk(KERN_ERR "can't register device seq\n"); + &seq_oss_f_ops, NULL)) < 0) { + pr_err("ALSA: seq_oss: can't register device seq\n"); mutex_unlock(®ister_mutex); return rc; } if ((rc = snd_register_oss_device(SNDRV_OSS_DEVICE_TYPE_MUSIC, NULL, 0, - &seq_oss_f_ops, NULL, - SNDRV_SEQ_OSS_DEVNAME)) < 0) { - snd_printk(KERN_ERR "can't register device music\n"); + &seq_oss_f_ops, NULL)) < 0) { + pr_err("ALSA: seq_oss: can't register device music\n"); snd_unregister_oss_device(SNDRV_OSS_DEVICE_TYPE_SEQUENCER, NULL, 0); mutex_unlock(®ister_mutex); return rc; } - debug_printk(("device registered\n")); mutex_unlock(®ister_mutex); return 0; } @@ -255,11 +246,10 @@ static void unregister_device(void) { mutex_lock(®ister_mutex); - debug_printk(("device unregistered\n")); if (snd_unregister_oss_device(SNDRV_OSS_DEVICE_TYPE_MUSIC, NULL, 0) < 0) - snd_printk(KERN_ERR "error unregister device music\n"); + pr_err("ALSA: seq_oss: error unregister device music\n"); if (snd_unregister_oss_device(SNDRV_OSS_DEVICE_TYPE_SEQUENCER, NULL, 0) < 0) - snd_printk(KERN_ERR "error unregister device seq\n"); + pr_err("ALSA: seq_oss: error unregister device seq\n"); mutex_unlock(®ister_mutex); } diff --git a/sound/core/seq/oss/seq_oss_device.h b/sound/core/seq/oss/seq_oss_device.h index c0154a959d5..b4392432524 100644 --- a/sound/core/seq/oss/seq_oss_device.h +++ b/sound/core/seq/oss/seq_oss_device.h @@ -31,9 +31,6 @@ #include <sound/seq_kernel.h> #include <sound/info.h> -/* enable debug print */ -#define SNDRV_SEQ_OSS_DEBUG - /* max. applications */ #define SNDRV_SEQ_OSS_MAX_CLIENTS 16 #define SNDRV_SEQ_OSS_MAX_SYNTH_DEVS 16 @@ -46,7 +43,6 @@ #define SNDRV_SEQ_OSS_VERSION_STR "0.1.8" /* device and proc interface name */ -#define SNDRV_SEQ_OSS_DEVNAME "seq_oss" #define SNDRV_SEQ_OSS_PROCNAME "oss" @@ -177,13 +173,4 @@ snd_seq_oss_fill_addr(struct seq_oss_devinfo *dp, struct snd_seq_event *ev, /* misc. functions for proc interface */ char *enabled_str(int bool); - -/* for debug */ -#ifdef SNDRV_SEQ_OSS_DEBUG -extern int seq_oss_debug; -#define debug_printk(x) do { if (seq_oss_debug > 0) snd_printd x; } while (0) -#else -#define debug_printk(x) /**/ -#endif - #endif /* __SEQ_OSS_DEVICE_H */ diff --git a/sound/core/seq/oss/seq_oss_event.c b/sound/core/seq/oss/seq_oss_event.c index 066f5f3e3f4..c3908862bc8 100644 --- a/sound/core/seq/oss/seq_oss_event.c +++ b/sound/core/seq/oss/seq_oss_event.c @@ -285,7 +285,12 @@ local_event(struct seq_oss_devinfo *dp, union evrec *q, struct snd_seq_event *ev static int note_on_event(struct seq_oss_devinfo *dp, int dev, int ch, int note, int vel, struct snd_seq_event *ev) { - struct seq_oss_synthinfo *info = &dp->synths[dev]; + struct seq_oss_synthinfo *info; + + if (!snd_seq_oss_synth_is_valid(dp, dev)) + return -ENXIO; + + info = &dp->synths[dev]; switch (info->arg.event_passing) { case SNDRV_SEQ_OSS_PROCESS_EVENTS: if (! info->ch || ch < 0 || ch >= info->nr_voices) { @@ -340,7 +345,12 @@ note_on_event(struct seq_oss_devinfo *dp, int dev, int ch, int note, int vel, st static int note_off_event(struct seq_oss_devinfo *dp, int dev, int ch, int note, int vel, struct snd_seq_event *ev) { - struct seq_oss_synthinfo *info = &dp->synths[dev]; + struct seq_oss_synthinfo *info; + + if (!snd_seq_oss_synth_is_valid(dp, dev)) + return -ENXIO; + + info = &dp->synths[dev]; switch (info->arg.event_passing) { case SNDRV_SEQ_OSS_PROCESS_EVENTS: if (! info->ch || ch < 0 || ch >= info->nr_voices) { diff --git a/sound/core/seq/oss/seq_oss_init.c b/sound/core/seq/oss/seq_oss_init.c index e3cb46fef2c..b9184d20c39 100644 --- a/sound/core/seq/oss/seq_oss_init.c +++ b/sound/core/seq/oss/seq_oss_init.c @@ -31,6 +31,7 @@ #include <linux/export.h> #include <linux/moduleparam.h> #include <linux/slab.h> +#include <linux/workqueue.h> /* * common variables @@ -60,6 +61,14 @@ static void free_devinfo(void *private); #define call_ctl(type,rec) snd_seq_kernel_client_ctl(system_client, type, rec) +/* call snd_seq_oss_midi_lookup_ports() asynchronously */ +static void async_call_lookup_ports(struct work_struct *work) +{ + snd_seq_oss_midi_lookup_ports(system_client); +} + +static DECLARE_WORK(async_lookup_work, async_call_lookup_ports); + /* * create sequencer client for OSS sequencer */ @@ -83,10 +92,6 @@ snd_seq_oss_create_client(void) goto __error; system_client = rc; - debug_printk(("new client = %d\n", rc)); - - /* look up midi devices */ - snd_seq_oss_midi_lookup_ports(system_client); /* create annoucement receiver port */ memset(port, 0, sizeof(*port)); @@ -115,6 +120,9 @@ snd_seq_oss_create_client(void) } rc = 0; + /* look up midi devices */ + schedule_work(&async_lookup_work); + __error: kfree(port); return rc; @@ -160,6 +168,7 @@ receive_announce(struct snd_seq_event *ev, int direct, void *private, int atomic int snd_seq_oss_delete_client(void) { + cancel_work_sync(&async_lookup_work); if (system_client >= 0) snd_seq_delete_kernel_client(system_client); @@ -180,10 +189,9 @@ snd_seq_oss_open(struct file *file, int level) dp = kzalloc(sizeof(*dp), GFP_KERNEL); if (!dp) { - snd_printk(KERN_ERR "can't malloc device info\n"); + pr_err("ALSA: seq_oss: can't malloc device info\n"); return -ENOMEM; } - debug_printk(("oss_open: dp = %p\n", dp)); dp->cseq = system_client; dp->port = -1; @@ -196,7 +204,7 @@ snd_seq_oss_open(struct file *file, int level) dp->index = i; if (i >= SNDRV_SEQ_OSS_MAX_CLIENTS) { - snd_printk(KERN_ERR "too many applications\n"); + pr_err("ALSA: seq_oss: too many applications\n"); rc = -ENOMEM; goto _error; } @@ -206,21 +214,19 @@ snd_seq_oss_open(struct file *file, int level) snd_seq_oss_midi_setup(dp); if (dp->synth_opened == 0 && dp->max_mididev == 0) { - /* snd_printk(KERN_ERR "no device found\n"); */ + /* pr_err("ALSA: seq_oss: no device found\n"); */ rc = -ENODEV; goto _error; } /* create port */ - debug_printk(("create new port\n")); rc = create_port(dp); if (rc < 0) { - snd_printk(KERN_ERR "can't create port\n"); + pr_err("ALSA: seq_oss: can't create port\n"); goto _error; } /* allocate queue */ - debug_printk(("allocate queue\n")); rc = alloc_seq_queue(dp); if (rc < 0) goto _error; @@ -237,7 +243,6 @@ snd_seq_oss_open(struct file *file, int level) dp->file_mode = translate_mode(file); /* initialize read queue */ - debug_printk(("initialize read queue\n")); if (is_read_mode(dp->file_mode)) { dp->readq = snd_seq_oss_readq_new(dp, maxqlen); if (!dp->readq) { @@ -247,7 +252,6 @@ snd_seq_oss_open(struct file *file, int level) } /* initialize write queue */ - debug_printk(("initialize write queue\n")); if (is_write_mode(dp->file_mode)) { dp->writeq = snd_seq_oss_writeq_new(dp, maxqlen); if (!dp->writeq) { @@ -257,14 +261,12 @@ snd_seq_oss_open(struct file *file, int level) } /* initialize timer */ - debug_printk(("initialize timer\n")); dp->timer = snd_seq_oss_timer_new(dp); if (!dp->timer) { - snd_printk(KERN_ERR "can't alloc timer\n"); + pr_err("ALSA: seq_oss: can't alloc timer\n"); rc = -ENOMEM; goto _error; } - debug_printk(("timer initialized\n")); /* set private data pointer */ file->private_data = dp; @@ -278,7 +280,6 @@ snd_seq_oss_open(struct file *file, int level) client_table[dp->index] = dp; num_clients++; - debug_printk(("open done\n")); return 0; _error: @@ -337,7 +338,6 @@ create_port(struct seq_oss_devinfo *dp) return rc; dp->port = port.addr.port; - debug_printk(("new port = %d\n", port.addr.port)); return 0; } @@ -353,7 +353,6 @@ delete_port(struct seq_oss_devinfo *dp) return 0; } - debug_printk(("delete_port %i\n", dp->port)); return snd_seq_event_port_detach(dp->cseq, dp->port); } @@ -391,7 +390,7 @@ delete_seq_queue(int queue) qinfo.queue = queue; rc = call_ctl(SNDRV_SEQ_IOCTL_DELETE_QUEUE, &qinfo); if (rc < 0) - printk(KERN_ERR "seq-oss: unable to delete queue %d (%d)\n", queue, rc); + pr_err("ALSA: seq_oss: unable to delete queue %d (%d)\n", queue, rc); return rc; } @@ -428,21 +427,16 @@ snd_seq_oss_release(struct seq_oss_devinfo *dp) client_table[dp->index] = NULL; num_clients--; - debug_printk(("resetting..\n")); snd_seq_oss_reset(dp); - debug_printk(("cleaning up..\n")); snd_seq_oss_synth_cleanup(dp); snd_seq_oss_midi_cleanup(dp); /* clear slot */ - debug_printk(("releasing resource..\n")); queue = dp->queue; if (dp->port >= 0) delete_port(dp); delete_seq_queue(queue); - - debug_printk(("release done\n")); } @@ -456,7 +450,6 @@ snd_seq_oss_drain_write(struct seq_oss_devinfo *dp) return; if (is_write_mode(dp->file_mode) && !is_nonblock_mode(dp->file_mode) && dp->writeq) { - debug_printk(("syncing..\n")); while (snd_seq_oss_writeq_sync(dp->writeq)) ; } diff --git a/sound/core/seq/oss/seq_oss_ioctl.c b/sound/core/seq/oss/seq_oss_ioctl.c index 5ac701c903c..5b8520177b0 100644 --- a/sound/core/seq/oss/seq_oss_ioctl.c +++ b/sound/core/seq/oss/seq_oss_ioctl.c @@ -90,12 +90,10 @@ snd_seq_oss_ioctl(struct seq_oss_devinfo *dp, unsigned int cmd, unsigned long ca return snd_seq_oss_timer_ioctl(dp->timer, cmd, arg); case SNDCTL_SEQ_PANIC: - debug_printk(("panic\n")); snd_seq_oss_reset(dp); return -EINVAL; case SNDCTL_SEQ_SYNC: - debug_printk(("sync\n")); if (! is_write_mode(dp->file_mode) || dp->writeq == NULL) return 0; while (snd_seq_oss_writeq_sync(dp->writeq)) @@ -105,55 +103,45 @@ snd_seq_oss_ioctl(struct seq_oss_devinfo *dp, unsigned int cmd, unsigned long ca return 0; case SNDCTL_SEQ_RESET: - debug_printk(("reset\n")); snd_seq_oss_reset(dp); return 0; case SNDCTL_SEQ_TESTMIDI: - debug_printk(("test midi\n")); if (get_user(dev, p)) return -EFAULT; return snd_seq_oss_midi_open(dp, dev, dp->file_mode); case SNDCTL_SEQ_GETINCOUNT: - debug_printk(("get in count\n")); if (dp->readq == NULL || ! is_read_mode(dp->file_mode)) return 0; return put_user(dp->readq->qlen, p) ? -EFAULT : 0; case SNDCTL_SEQ_GETOUTCOUNT: - debug_printk(("get out count\n")); if (! is_write_mode(dp->file_mode) || dp->writeq == NULL) return 0; return put_user(snd_seq_oss_writeq_get_free_size(dp->writeq), p) ? -EFAULT : 0; case SNDCTL_SEQ_GETTIME: - debug_printk(("get time\n")); return put_user(snd_seq_oss_timer_cur_tick(dp->timer), p) ? -EFAULT : 0; case SNDCTL_SEQ_RESETSAMPLES: - debug_printk(("reset samples\n")); if (get_user(dev, p)) return -EFAULT; return snd_seq_oss_synth_ioctl(dp, dev, cmd, carg); case SNDCTL_SEQ_NRSYNTHS: - debug_printk(("nr synths\n")); return put_user(dp->max_synthdev, p) ? -EFAULT : 0; case SNDCTL_SEQ_NRMIDIS: - debug_printk(("nr midis\n")); return put_user(dp->max_mididev, p) ? -EFAULT : 0; case SNDCTL_SYNTH_MEMAVL: - debug_printk(("mem avail\n")); if (get_user(dev, p)) return -EFAULT; val = snd_seq_oss_synth_ioctl(dp, dev, cmd, carg); return put_user(val, p) ? -EFAULT : 0; case SNDCTL_FM_4OP_ENABLE: - debug_printk(("4op\n")); if (get_user(dev, p)) return -EFAULT; snd_seq_oss_synth_ioctl(dp, dev, cmd, carg); @@ -161,19 +149,15 @@ snd_seq_oss_ioctl(struct seq_oss_devinfo *dp, unsigned int cmd, unsigned long ca case SNDCTL_SYNTH_INFO: case SNDCTL_SYNTH_ID: - debug_printk(("synth info\n")); return snd_seq_oss_synth_info_user(dp, arg); case SNDCTL_SEQ_OUTOFBAND: - debug_printk(("out of band\n")); return snd_seq_oss_oob_user(dp, arg); case SNDCTL_MIDI_INFO: - debug_printk(("midi info\n")); return snd_seq_oss_midi_info_user(dp, arg); case SNDCTL_SEQ_THRESHOLD: - debug_printk(("threshold\n")); if (! is_write_mode(dp->file_mode)) return 0; if (get_user(val, p)) @@ -186,7 +170,6 @@ snd_seq_oss_ioctl(struct seq_oss_devinfo *dp, unsigned int cmd, unsigned long ca return 0; case SNDCTL_MIDI_PRETIME: - debug_printk(("pretime\n")); if (dp->readq == NULL || !is_read_mode(dp->file_mode)) return 0; if (get_user(val, p)) @@ -199,7 +182,6 @@ snd_seq_oss_ioctl(struct seq_oss_devinfo *dp, unsigned int cmd, unsigned long ca return put_user(val, p) ? -EFAULT : 0; default: - debug_printk(("others\n")); if (! is_write_mode(dp->file_mode)) return -EIO; return snd_seq_oss_synth_ioctl(dp, 0, cmd, carg); diff --git a/sound/core/seq/oss/seq_oss_midi.c b/sound/core/seq/oss/seq_oss_midi.c index 677dc84590c..3a4569669ef 100644 --- a/sound/core/seq/oss/seq_oss_midi.c +++ b/sound/core/seq/oss/seq_oss_midi.c @@ -72,7 +72,7 @@ static int send_midi_event(struct seq_oss_devinfo *dp, struct snd_seq_event *ev, * look up the existing ports * this looks a very exhausting job. */ -int __init +int snd_seq_oss_midi_lookup_ports(int client) { struct snd_seq_client_info *clinfo; @@ -153,7 +153,6 @@ snd_seq_oss_midi_check_new_port(struct snd_seq_port_info *pinfo) struct seq_oss_midi *mdev; unsigned long flags; - debug_printk(("check for MIDI client %d port %d\n", pinfo->addr.client, pinfo->addr.port)); /* the port must include generic midi */ if (! (pinfo->type & SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC)) return 0; @@ -175,7 +174,7 @@ snd_seq_oss_midi_check_new_port(struct snd_seq_port_info *pinfo) * allocate midi info record */ if ((mdev = kzalloc(sizeof(*mdev), GFP_KERNEL)) == NULL) { - snd_printk(KERN_ERR "can't malloc midi info\n"); + pr_err("ALSA: seq_oss: can't malloc midi info\n"); return -ENOMEM; } @@ -191,7 +190,7 @@ snd_seq_oss_midi_check_new_port(struct snd_seq_port_info *pinfo) /* create MIDI coder */ if (snd_midi_event_new(MAX_MIDI_EVENT_BUF, &mdev->coder) < 0) { - snd_printk(KERN_ERR "can't malloc midi coder\n"); + pr_err("ALSA: seq_oss: can't malloc midi coder\n"); kfree(mdev); return -ENOMEM; } @@ -406,7 +405,6 @@ snd_seq_oss_midi_close(struct seq_oss_devinfo *dp, int dev) return 0; } - debug_printk(("closing client %d port %d mode %d\n", mdev->client, mdev->port, mdev->opened)); memset(&subs, 0, sizeof(subs)); if (mdev->opened & PERM_WRITE) { subs.sender = dp->addr; @@ -470,7 +468,6 @@ snd_seq_oss_midi_reset(struct seq_oss_devinfo *dp, int dev) struct snd_seq_event ev; int c; - debug_printk(("resetting client %d port %d\n", mdev->client, mdev->port)); memset(&ev, 0, sizeof(ev)); ev.dest.client = mdev->client; ev.dest.port = mdev->port; diff --git a/sound/core/seq/oss/seq_oss_readq.c b/sound/core/seq/oss/seq_oss_readq.c index 73661c4ab82..654d17a5023 100644 --- a/sound/core/seq/oss/seq_oss_readq.c +++ b/sound/core/seq/oss/seq_oss_readq.c @@ -48,12 +48,12 @@ snd_seq_oss_readq_new(struct seq_oss_devinfo *dp, int maxlen) struct seq_oss_readq *q; if ((q = kzalloc(sizeof(*q), GFP_KERNEL)) == NULL) { - snd_printk(KERN_ERR "can't malloc read queue\n"); + pr_err("ALSA: seq_oss: can't malloc read queue\n"); return NULL; } if ((q->q = kcalloc(maxlen, sizeof(union evrec), GFP_KERNEL)) == NULL) { - snd_printk(KERN_ERR "can't malloc read queue buffer\n"); + pr_err("ALSA: seq_oss: can't malloc read queue buffer\n"); kfree(q); return NULL; } diff --git a/sound/core/seq/oss/seq_oss_synth.c b/sound/core/seq/oss/seq_oss_synth.c index c5b773a1eea..701feb71b70 100644 --- a/sound/core/seq/oss/seq_oss_synth.c +++ b/sound/core/seq/oss/seq_oss_synth.c @@ -106,7 +106,7 @@ snd_seq_oss_synth_register(struct snd_seq_device *dev) unsigned long flags; if ((rec = kzalloc(sizeof(*rec), GFP_KERNEL)) == NULL) { - snd_printk(KERN_ERR "can't malloc synth info\n"); + pr_err("ALSA: seq_oss: can't malloc synth info\n"); return -ENOMEM; } rec->seq_device = -1; @@ -130,7 +130,7 @@ snd_seq_oss_synth_register(struct snd_seq_device *dev) if (i >= max_synth_devs) { if (max_synth_devs >= SNDRV_SEQ_OSS_MAX_SYNTH_DEVS) { spin_unlock_irqrestore(®ister_lock, flags); - snd_printk(KERN_ERR "no more synth slot\n"); + pr_err("ALSA: seq_oss: no more synth slot\n"); kfree(rec); return -ENOMEM; } @@ -138,7 +138,6 @@ snd_seq_oss_synth_register(struct snd_seq_device *dev) } rec->seq_device = i; synth_devs[i] = rec; - debug_printk(("synth %s registered %d\n", rec->name, i)); spin_unlock_irqrestore(®ister_lock, flags); dev->driver_data = rec; #ifdef SNDRV_OSS_INFO_DEV_SYNTH @@ -163,7 +162,7 @@ snd_seq_oss_synth_unregister(struct snd_seq_device *dev) } if (index >= max_synth_devs) { spin_unlock_irqrestore(®ister_lock, flags); - snd_printk(KERN_ERR "can't unregister synth\n"); + pr_err("ALSA: seq_oss: can't unregister synth\n"); return -EINVAL; } synth_devs[index] = NULL; @@ -248,7 +247,7 @@ snd_seq_oss_synth_setup(struct seq_oss_devinfo *dp) if (info->nr_voices > 0) { info->ch = kcalloc(info->nr_voices, sizeof(struct seq_oss_chinfo), GFP_KERNEL); if (!info->ch) { - snd_printk(KERN_ERR "Cannot malloc\n"); + pr_err("ALSA: seq_oss: Cannot malloc voices\n"); rec->oper.close(&info->arg); module_put(rec->oper.owner); snd_use_lock_free(&rec->use_lock); @@ -256,7 +255,6 @@ snd_seq_oss_synth_setup(struct seq_oss_devinfo *dp) } reset_channels(info); } - debug_printk(("synth %d assigned\n", i)); info->opened++; rec->opened++; dp->synth_opened++; @@ -326,7 +324,6 @@ snd_seq_oss_synth_cleanup(struct seq_oss_devinfo *dp) if (rec == NULL) continue; if (rec->opened > 0) { - debug_printk(("synth %d closed\n", i)); rec->oper.close(&info->arg); module_put(rec->oper.owner); rec->opened = 0; diff --git a/sound/core/seq/oss/seq_oss_timer.c b/sound/core/seq/oss/seq_oss_timer.c index ab59cbfbcaf..4f24ea9fad9 100644 --- a/sound/core/seq/oss/seq_oss_timer.c +++ b/sound/core/seq/oss/seq_oss_timer.c @@ -233,7 +233,6 @@ snd_seq_oss_timer_ioctl(struct seq_oss_timer *timer, unsigned int cmd, int __use int value; if (cmd == SNDCTL_SEQ_CTRLRATE) { - debug_printk(("ctrl rate\n")); /* if *arg == 0, just return the current rate */ if (get_user(value, arg)) return -EFAULT; @@ -248,21 +247,16 @@ snd_seq_oss_timer_ioctl(struct seq_oss_timer *timer, unsigned int cmd, int __use switch (cmd) { case SNDCTL_TMR_START: - debug_printk(("timer start\n")); return snd_seq_oss_timer_start(timer); case SNDCTL_TMR_STOP: - debug_printk(("timer stop\n")); return snd_seq_oss_timer_stop(timer); case SNDCTL_TMR_CONTINUE: - debug_printk(("timer continue\n")); return snd_seq_oss_timer_continue(timer); case SNDCTL_TMR_TEMPO: - debug_printk(("timer tempo\n")); if (get_user(value, arg)) return -EFAULT; return snd_seq_oss_timer_tempo(timer, value); case SNDCTL_TMR_TIMEBASE: - debug_printk(("timer timebase\n")); if (get_user(value, arg)) return -EFAULT; if (value < MIN_OSS_TIMEBASE) @@ -276,7 +270,6 @@ snd_seq_oss_timer_ioctl(struct seq_oss_timer *timer, unsigned int cmd, int __use case SNDCTL_TMR_METRONOME: case SNDCTL_TMR_SELECT: case SNDCTL_TMR_SOURCE: - debug_printk(("timer XXX\n")); /* not supported */ return 0; } diff --git a/sound/core/seq/seq_clientmgr.c b/sound/core/seq/seq_clientmgr.c index 4dc6bae80e1..225c73152ee 100644 --- a/sound/core/seq/seq_clientmgr.c +++ b/sound/core/seq/seq_clientmgr.c @@ -123,7 +123,7 @@ static inline int snd_seq_write_pool_allocated(struct snd_seq_client *client) static struct snd_seq_client *clientptr(int clientid) { if (clientid < 0 || clientid >= SNDRV_SEQ_MAX_CLIENTS) { - snd_printd("Seq: oops. Trying to get pointer to client %d\n", + pr_debug("ALSA: seq: oops. Trying to get pointer to client %d\n", clientid); return NULL; } @@ -136,7 +136,7 @@ struct snd_seq_client *snd_seq_client_use_ptr(int clientid) struct snd_seq_client *client; if (clientid < 0 || clientid >= SNDRV_SEQ_MAX_CLIENTS) { - snd_printd("Seq: oops. Trying to get pointer to client %d\n", + pr_debug("ALSA: seq: oops. Trying to get pointer to client %d\n", clientid); return NULL; } @@ -291,8 +291,8 @@ static void seq_free_client(struct snd_seq_client * client) mutex_lock(®ister_mutex); switch (client->type) { case NO_CLIENT: - snd_printk(KERN_WARNING "Seq: Trying to free unused client %d\n", - client->number); + pr_warn("ALSA: seq: Trying to free unused client %d\n", + client->number); break; case USER_CLIENT: case KERNEL_CLIENT: @@ -301,7 +301,7 @@ static void seq_free_client(struct snd_seq_client * client) break; default: - snd_printk(KERN_ERR "Seq: Trying to free client %d with undefined type = %d\n", + pr_err("ALSA: seq: Trying to free client %d with undefined type = %d\n", client->number, client->type); } mutex_unlock(®ister_mutex); @@ -660,7 +660,7 @@ static int deliver_to_subscribers(struct snd_seq_client *client, int atomic, int hop) { struct snd_seq_subscribers *subs; - int err = 0, num_ev = 0; + int err, result = 0, num_ev = 0; struct snd_seq_event event_saved; struct snd_seq_client_port *src_port; struct snd_seq_port_subs_info *grp; @@ -685,8 +685,12 @@ static int deliver_to_subscribers(struct snd_seq_client *client, subs->info.flags & SNDRV_SEQ_PORT_SUBS_TIME_REAL); err = snd_seq_deliver_single_event(client, event, 0, atomic, hop); - if (err < 0) - break; + if (err < 0) { + /* save first error that occurs and continue */ + if (!result) + result = err; + continue; + } num_ev++; /* restore original event record */ *event = event_saved; @@ -697,7 +701,7 @@ static int deliver_to_subscribers(struct snd_seq_client *client, up_read(&grp->list_mutex); *event = event_saved; /* restore */ snd_seq_port_unlock(src_port); - return (err < 0) ? err : num_ev; + return (result < 0) ? result : num_ev; } @@ -709,7 +713,7 @@ static int port_broadcast_event(struct snd_seq_client *client, struct snd_seq_event *event, int atomic, int hop) { - int num_ev = 0, err = 0; + int num_ev = 0, err, result = 0; struct snd_seq_client *dest_client; struct snd_seq_client_port *port; @@ -724,14 +728,18 @@ static int port_broadcast_event(struct snd_seq_client *client, err = snd_seq_deliver_single_event(NULL, event, SNDRV_SEQ_FILTER_BROADCAST, atomic, hop); - if (err < 0) - break; + if (err < 0) { + /* save first error that occurs and continue */ + if (!result) + result = err; + continue; + } num_ev++; } read_unlock(&dest_client->ports_lock); snd_seq_client_unlock(dest_client); event->dest.port = SNDRV_SEQ_ADDRESS_BROADCAST; /* restore */ - return (err < 0) ? err : num_ev; + return (result < 0) ? result : num_ev; } /* @@ -741,7 +749,7 @@ static int port_broadcast_event(struct snd_seq_client *client, static int broadcast_event(struct snd_seq_client *client, struct snd_seq_event *event, int atomic, int hop) { - int err = 0, num_ev = 0; + int err, result = 0, num_ev = 0; int dest; struct snd_seq_addr addr; @@ -760,12 +768,16 @@ static int broadcast_event(struct snd_seq_client *client, err = snd_seq_deliver_single_event(NULL, event, SNDRV_SEQ_FILTER_BROADCAST, atomic, hop); - if (err < 0) - break; + if (err < 0) { + /* save first error that occurs and continue */ + if (!result) + result = err; + continue; + } num_ev += err; } event->dest = addr; /* restore */ - return (err < 0) ? err : num_ev; + return (result < 0) ? result : num_ev; } @@ -773,7 +785,7 @@ static int broadcast_event(struct snd_seq_client *client, static int multicast_event(struct snd_seq_client *client, struct snd_seq_event *event, int atomic, int hop) { - snd_printd("seq: multicast not supported yet.\n"); + pr_debug("ALSA: seq: multicast not supported yet.\n"); return 0; /* ignored */ } #endif /* SUPPORT_BROADCAST */ @@ -794,7 +806,7 @@ static int snd_seq_deliver_event(struct snd_seq_client *client, struct snd_seq_e hop++; if (hop >= SNDRV_SEQ_MAX_HOPS) { - snd_printd("too long delivery path (%d:%d->%d:%d)\n", + pr_debug("ALSA: seq: too long delivery path (%d:%d->%d:%d)\n", event->source.client, event->source.port, event->dest.client, event->dest.port); return -EMLINK; @@ -2196,7 +2208,7 @@ static int snd_seq_do_ioctl(struct snd_seq_client *client, unsigned int cmd, if (p->cmd == cmd) return p->func(client, arg); } - snd_printd("seq unknown ioctl() 0x%x (type='%c', number=0x%02x)\n", + pr_debug("ALSA: seq unknown ioctl() 0x%x (type='%c', number=0x%02x)\n", cmd, _IOC_TYPE(cmd), _IOC_NR(cmd)); return -ENOTTY; } diff --git a/sound/core/seq/seq_device.c b/sound/core/seq/seq_device.c index 040c60e1da2..91a786a783e 100644 --- a/sound/core/seq/seq_device.c +++ b/sound/core/seq/seq_device.c @@ -168,7 +168,7 @@ void snd_seq_device_load_drivers(void) /* * register a sequencer device - * card = card info (NULL allowed) + * card = card info * device = device number (if any) * id = id of driver * result = return pointer (NULL allowed if unnecessary) @@ -325,7 +325,7 @@ int snd_seq_device_register_driver(char *id, struct snd_seq_dev_ops *entry, return -ENOMEM; } if (ops->driver & DRIVER_LOADED) { - snd_printk(KERN_WARNING "driver_register: driver '%s' already exists\n", id); + pr_warn("ALSA: seq: driver_register: driver '%s' already exists\n", id); unlock_driver(ops); snd_seq_autoload_unlock(); return -EBUSY; @@ -398,7 +398,7 @@ int snd_seq_device_unregister_driver(char *id) return -ENXIO; if (! (ops->driver & DRIVER_LOADED) || (ops->driver & DRIVER_LOCKED)) { - snd_printk(KERN_ERR "driver_unregister: cannot unload driver '%s': status=%x\n", + pr_err("ALSA: seq: driver_unregister: cannot unload driver '%s': status=%x\n", id, ops->driver); unlock_driver(ops); return -EBUSY; @@ -413,7 +413,7 @@ int snd_seq_device_unregister_driver(char *id) ops->driver = 0; if (ops->num_init_devices > 0) - snd_printk(KERN_ERR "free_driver: init_devices > 0!! (%d)\n", + pr_err("ALSA: seq: free_driver: init_devices > 0!! (%d)\n", ops->num_init_devices); mutex_unlock(&ops->reg_mutex); @@ -459,7 +459,7 @@ static int init_device(struct snd_seq_device *dev, struct ops_list *ops) if (dev->status != SNDRV_SEQ_DEVICE_FREE) return 0; /* already initialized */ if (ops->argsize != dev->argsize) { - snd_printk(KERN_ERR "incompatible device '%s' for plug-in '%s' (%d %d)\n", + pr_err("ALSA: seq: incompatible device '%s' for plug-in '%s' (%d %d)\n", dev->name, ops->id, ops->argsize, dev->argsize); return -EINVAL; } @@ -467,7 +467,7 @@ static int init_device(struct snd_seq_device *dev, struct ops_list *ops) dev->status = SNDRV_SEQ_DEVICE_REGISTERED; ops->num_init_devices++; } else { - snd_printk(KERN_ERR "init_device failed: %s: %s\n", + pr_err("ALSA: seq: init_device failed: %s: %s\n", dev->name, dev->id); } @@ -486,7 +486,7 @@ static int free_device(struct snd_seq_device *dev, struct ops_list *ops) if (dev->status != SNDRV_SEQ_DEVICE_REGISTERED) return 0; /* not registered */ if (ops->argsize != dev->argsize) { - snd_printk(KERN_ERR "incompatible device '%s' for plug-in '%s' (%d %d)\n", + pr_err("ALSA: seq: incompatible device '%s' for plug-in '%s' (%d %d)\n", dev->name, ops->id, ops->argsize, dev->argsize); return -EINVAL; } @@ -495,7 +495,7 @@ static int free_device(struct snd_seq_device *dev, struct ops_list *ops) dev->driver_data = NULL; ops->num_init_devices--; } else { - snd_printk(KERN_ERR "free_device failed: %s: %s\n", + pr_err("ALSA: seq: free_device failed: %s: %s\n", dev->name, dev->id); } @@ -559,7 +559,7 @@ static void __exit alsa_seq_device_exit(void) snd_info_free_entry(info_entry); #endif if (num_ops) - snd_printk(KERN_ERR "drivers not released (%d)\n", num_ops); + pr_err("ALSA: seq: drivers not released (%d)\n", num_ops); } module_init(alsa_seq_device_init) diff --git a/sound/core/seq/seq_dummy.c b/sound/core/seq/seq_dummy.c index dbc55071679..ec667f158f1 100644 --- a/sound/core/seq/seq_dummy.c +++ b/sound/core/seq/seq_dummy.c @@ -198,7 +198,7 @@ register_client(void) int i; if (ports < 1) { - snd_printk(KERN_ERR "invalid number of ports %d\n", ports); + pr_err("ALSA: seq_dummy: invalid number of ports %d\n", ports); return -EINVAL; } diff --git a/sound/core/seq/seq_fifo.c b/sound/core/seq/seq_fifo.c index 0d75afa786b..53a403e17c5 100644 --- a/sound/core/seq/seq_fifo.c +++ b/sound/core/seq/seq_fifo.c @@ -34,7 +34,7 @@ struct snd_seq_fifo *snd_seq_fifo_new(int poolsize) f = kzalloc(sizeof(*f), GFP_KERNEL); if (f == NULL) { - snd_printd("malloc failed for snd_seq_fifo_new() \n"); + pr_debug("ALSA: seq: malloc failed for snd_seq_fifo_new() \n"); return NULL; } @@ -124,7 +124,7 @@ int snd_seq_fifo_event_in(struct snd_seq_fifo *f, snd_use_lock_use(&f->use_lock); err = snd_seq_event_dup(f->pool, event, &cell, 1, NULL); /* always non-blocking */ if (err < 0) { - if (err == -ENOMEM) + if ((err == -ENOMEM) || (err == -EAGAIN)) atomic_inc(&f->overflow); snd_use_lock_free(&f->use_lock); return err; diff --git a/sound/core/seq/seq_lock.c b/sound/core/seq/seq_lock.c index 2cfe50c71a9..3b693e924db 100644 --- a/sound/core/seq/seq_lock.c +++ b/sound/core/seq/seq_lock.c @@ -31,12 +31,12 @@ void snd_use_lock_sync_helper(snd_use_lock_t *lockp, const char *file, int line) int max_count = 5 * HZ; if (atomic_read(lockp) < 0) { - printk(KERN_WARNING "seq_lock: lock trouble [counter = %d] in %s:%d\n", atomic_read(lockp), file, line); + pr_warn("ALSA: seq_lock: lock trouble [counter = %d] in %s:%d\n", atomic_read(lockp), file, line); return; } while (atomic_read(lockp) > 0) { if (max_count == 0) { - snd_printk(KERN_WARNING "seq_lock: timeout [%d left] in %s:%d\n", atomic_read(lockp), file, line); + pr_warn("ALSA: seq_lock: timeout [%d left] in %s:%d\n", atomic_read(lockp), file, line); break; } schedule_timeout_uninterruptible(1); diff --git a/sound/core/seq/seq_memory.c b/sound/core/seq/seq_memory.c index f478f770bf5..1e206de0c2d 100644 --- a/sound/core/seq/seq_memory.c +++ b/sound/core/seq/seq_memory.c @@ -236,7 +236,7 @@ static int snd_seq_cell_alloc(struct snd_seq_pool *pool, init_waitqueue_entry(&wait, current); spin_lock_irqsave(&pool->lock, flags); if (pool->ptr == NULL) { /* not initialized */ - snd_printd("seq: pool is not initialized\n"); + pr_debug("ALSA: seq: pool is not initialized\n"); err = -EINVAL; goto __error; } @@ -388,7 +388,7 @@ int snd_seq_pool_init(struct snd_seq_pool *pool) pool->ptr = vmalloc(sizeof(struct snd_seq_event_cell) * pool->size); if (pool->ptr == NULL) { - snd_printd("seq: malloc for sequencer events failed\n"); + pr_debug("ALSA: seq: malloc for sequencer events failed\n"); return -ENOMEM; } @@ -431,7 +431,7 @@ int snd_seq_pool_done(struct snd_seq_pool *pool) while (atomic_read(&pool->counter) > 0) { if (max_count == 0) { - snd_printk(KERN_WARNING "snd_seq_pool_done timeout: %d cells remain\n", atomic_read(&pool->counter)); + pr_warn("ALSA: snd_seq_pool_done timeout: %d cells remain\n", atomic_read(&pool->counter)); break; } schedule_timeout_uninterruptible(1); @@ -464,7 +464,7 @@ struct snd_seq_pool *snd_seq_pool_new(int poolsize) /* create pool block */ pool = kzalloc(sizeof(*pool), GFP_KERNEL); if (pool == NULL) { - snd_printd("seq: malloc failed for pool\n"); + pr_debug("ALSA: seq: malloc failed for pool\n"); return NULL; } spin_lock_init(&pool->lock); diff --git a/sound/core/seq/seq_midi.c b/sound/core/seq/seq_midi.c index 64069dbf89c..a1fd77af605 100644 --- a/sound/core/seq/seq_midi.c +++ b/sound/core/seq/seq_midi.c @@ -121,7 +121,7 @@ static int dump_midi(struct snd_rawmidi_substream *substream, const char *buf, i runtime = substream->runtime; if ((tmp = runtime->avail) < count) { if (printk_ratelimit()) - snd_printk(KERN_ERR "MIDI output buffer overrun\n"); + pr_err("ALSA: seq_midi: MIDI output buffer overrun\n"); return -ENOMEM; } if (snd_rawmidi_kernel_write(substream, buf, count) < count) @@ -145,7 +145,7 @@ static int event_process_midi(struct snd_seq_event *ev, int direct, if (ev->type == SNDRV_SEQ_EVENT_SYSEX) { /* special case, to save space */ if ((ev->flags & SNDRV_SEQ_EVENT_LENGTH_MASK) != SNDRV_SEQ_EVENT_LENGTH_VARIABLE) { /* invalid event */ - snd_printd("seq_midi: invalid sysex event flags = 0x%x\n", ev->flags); + pr_debug("ALSA: seq_midi: invalid sysex event flags = 0x%x\n", ev->flags); return 0; } snd_seq_dump_var_event(ev, (snd_seq_dump_func_t)dump_midi, substream); @@ -189,7 +189,7 @@ static int midisynth_subscribe(void *private_data, struct snd_seq_port_subscribe msynth->subdevice, SNDRV_RAWMIDI_LFLG_INPUT, &msynth->input_rfile)) < 0) { - snd_printd("midi input open failed!!!\n"); + pr_debug("ALSA: seq_midi: midi input open failed!!!\n"); return err; } runtime = msynth->input_rfile.input->runtime; @@ -231,7 +231,7 @@ static int midisynth_use(void *private_data, struct snd_seq_port_subscribe *info msynth->subdevice, SNDRV_RAWMIDI_LFLG_OUTPUT, &msynth->output_rfile)) < 0) { - snd_printd("midi output open failed!!!\n"); + pr_debug("ALSA: seq_midi: midi output open failed!!!\n"); return err; } memset(¶ms, 0, sizeof(params)); @@ -362,13 +362,13 @@ snd_seq_midisynth_register_port(struct snd_seq_device *dev) if (! port->name[0]) { if (info->name[0]) { if (ports > 1) - snprintf(port->name, sizeof(port->name), "%s-%d", info->name, p); + snprintf(port->name, sizeof(port->name), "%s-%u", info->name, p); else snprintf(port->name, sizeof(port->name), "%s", info->name); } else { /* last resort */ if (ports > 1) - sprintf(port->name, "MIDI %d-%d-%d", card->number, device, p); + sprintf(port->name, "MIDI %d-%d-%u", card->number, device, p); else sprintf(port->name, "MIDI %d-%d", card->number, device); } diff --git a/sound/core/seq/seq_midi_emul.c b/sound/core/seq/seq_midi_emul.c index 6f64471ddde..9b6470cdcf2 100644 --- a/sound/core/seq/seq_midi_emul.c +++ b/sound/core/seq/seq_midi_emul.c @@ -89,7 +89,7 @@ snd_midi_process_event(struct snd_midi_op *ops, int dest_channel = 0; if (ev == NULL || chanset == NULL) { - snd_printd("ev or chanbase NULL (snd_midi_process_event)\n"); + pr_debug("ALSA: seq_midi_emul: ev or chanbase NULL (snd_midi_process_event)\n"); return; } if (chanset->channels == NULL) @@ -98,7 +98,7 @@ snd_midi_process_event(struct snd_midi_op *ops, if (snd_seq_ev_is_channel_type(ev)) { dest_channel = ev->data.note.channel; if (dest_channel >= chanset->max_channels) { - snd_printd("dest channel is %d, max is %d\n", + pr_debug("ALSA: seq_midi_emul: dest channel is %d, max is %d\n", dest_channel, chanset->max_channels); return; } @@ -232,7 +232,7 @@ snd_midi_process_event(struct snd_midi_op *ops, case SNDRV_SEQ_EVENT_ECHO: not_yet: default: - /*snd_printd("Unimplemented event %d\n", ev->type);*/ + /*pr_debug("ALSA: seq_midi_emul: Unimplemented event %d\n", ev->type);*/ break; } } diff --git a/sound/core/seq/seq_ports.c b/sound/core/seq/seq_ports.c index 9516e5ce3aa..794a341bf0e 100644 --- a/sound/core/seq/seq_ports.c +++ b/sound/core/seq/seq_ports.c @@ -135,14 +135,14 @@ struct snd_seq_client_port *snd_seq_create_port(struct snd_seq_client *client, return NULL; if (client->num_ports >= SNDRV_SEQ_MAX_PORTS - 1) { - snd_printk(KERN_WARNING "too many ports for client %d\n", client->number); + pr_warn("ALSA: seq: too many ports for client %d\n", client->number); return NULL; } /* create a new port */ new_port = kzalloc(sizeof(*new_port), GFP_KERNEL); if (! new_port) { - snd_printd("malloc failed for registering client port\n"); + pr_debug("ALSA: seq: malloc failed for registering client port\n"); return NULL; /* failure, out of memory */ } /* init port data */ diff --git a/sound/core/seq/seq_prioq.c b/sound/core/seq/seq_prioq.c index 29896ab2340..021b02bc933 100644 --- a/sound/core/seq/seq_prioq.c +++ b/sound/core/seq/seq_prioq.c @@ -60,7 +60,7 @@ struct snd_seq_prioq *snd_seq_prioq_new(void) f = kzalloc(sizeof(*f), GFP_KERNEL); if (f == NULL) { - snd_printd("oops: malloc failed for snd_seq_prioq_new()\n"); + pr_debug("ALSA: seq: malloc failed for snd_seq_prioq_new()\n"); return NULL; } @@ -79,7 +79,7 @@ void snd_seq_prioq_delete(struct snd_seq_prioq **fifo) *fifo = NULL; if (f == NULL) { - snd_printd("oops: snd_seq_prioq_delete() called with NULL prioq\n"); + pr_debug("ALSA: seq: snd_seq_prioq_delete() called with NULL prioq\n"); return; } @@ -197,7 +197,7 @@ int snd_seq_prioq_cell_in(struct snd_seq_prioq * f, cur = cur->next; if (! --count) { spin_unlock_irqrestore(&f->lock, flags); - snd_printk(KERN_ERR "cannot find a pointer.. infinite loop?\n"); + pr_err("ALSA: seq: cannot find a pointer.. infinite loop?\n"); return -EINVAL; } } @@ -223,7 +223,7 @@ struct snd_seq_event_cell *snd_seq_prioq_cell_out(struct snd_seq_prioq *f) unsigned long flags; if (f == NULL) { - snd_printd("oops: snd_seq_prioq_cell_in() called with NULL prioq\n"); + pr_debug("ALSA: seq: snd_seq_prioq_cell_in() called with NULL prioq\n"); return NULL; } spin_lock_irqsave(&f->lock, flags); @@ -248,7 +248,7 @@ struct snd_seq_event_cell *snd_seq_prioq_cell_out(struct snd_seq_prioq *f) int snd_seq_prioq_avail(struct snd_seq_prioq * f) { if (f == NULL) { - snd_printd("oops: snd_seq_prioq_cell_in() called with NULL prioq\n"); + pr_debug("ALSA: seq: snd_seq_prioq_cell_in() called with NULL prioq\n"); return 0; } return f->cells; @@ -259,7 +259,7 @@ int snd_seq_prioq_avail(struct snd_seq_prioq * f) struct snd_seq_event_cell *snd_seq_prioq_cell_peek(struct snd_seq_prioq * f) { if (f == NULL) { - snd_printd("oops: snd_seq_prioq_cell_in() called with NULL prioq\n"); + pr_debug("ALSA: seq: snd_seq_prioq_cell_in() called with NULL prioq\n"); return NULL; } return f->head; @@ -321,7 +321,7 @@ void snd_seq_prioq_leave(struct snd_seq_prioq * f, int client, int timestamp) freeprev = cell; } else { #if 0 - printk(KERN_DEBUG "type = %i, source = %i, dest = %i, " + pr_debug("ALSA: seq: type = %i, source = %i, dest = %i, " "client = %i\n", cell->event.type, cell->event.source.client, diff --git a/sound/core/seq/seq_queue.c b/sound/core/seq/seq_queue.c index f9077361c11..aad4878cee5 100644 --- a/sound/core/seq/seq_queue.c +++ b/sound/core/seq/seq_queue.c @@ -112,7 +112,7 @@ static struct snd_seq_queue *queue_new(int owner, int locked) q = kzalloc(sizeof(*q), GFP_KERNEL); if (q == NULL) { - snd_printd("malloc failed for snd_seq_queue_new()\n"); + pr_debug("ALSA: seq: malloc failed for snd_seq_queue_new()\n"); return NULL; } diff --git a/sound/core/seq/seq_timer.c b/sound/core/seq/seq_timer.c index 160b1bd0cd6..e73605393ee 100644 --- a/sound/core/seq/seq_timer.c +++ b/sound/core/seq/seq_timer.c @@ -57,7 +57,7 @@ struct snd_seq_timer *snd_seq_timer_new(void) tmr = kzalloc(sizeof(*tmr), GFP_KERNEL); if (tmr == NULL) { - snd_printd("malloc failed for snd_seq_timer_new() \n"); + pr_debug("ALSA: seq: malloc failed for snd_seq_timer_new() \n"); return NULL; } spin_lock_init(&tmr->lock); @@ -78,7 +78,7 @@ void snd_seq_timer_delete(struct snd_seq_timer **tmr) *tmr = NULL; if (t == NULL) { - snd_printd("oops: snd_seq_timer_delete() called with NULL timer\n"); + pr_debug("ALSA: seq: snd_seq_timer_delete() called with NULL timer\n"); return; } t->running = 0; @@ -199,7 +199,7 @@ int snd_seq_timer_set_ppq(struct snd_seq_timer * tmr, int ppq) /* refuse to change ppq on running timers */ /* because it will upset the song position (ticks) */ spin_unlock_irqrestore(&tmr->lock, flags); - snd_printd("seq: cannot change ppq of a running timer\n"); + pr_debug("ALSA: seq: cannot change ppq of a running timer\n"); return -EBUSY; } @@ -252,7 +252,7 @@ int snd_seq_timer_set_skew(struct snd_seq_timer *tmr, unsigned int skew, /* FIXME */ if (base != SKEW_BASE) { - snd_printd("invalid skew base 0x%x\n", base); + pr_debug("ALSA: seq: invalid skew base 0x%x\n", base); return -EINVAL; } spin_lock_irqsave(&tmr->lock, flags); @@ -290,10 +290,10 @@ int snd_seq_timer_open(struct snd_seq_queue *q) tid.device = SNDRV_TIMER_GLOBAL_SYSTEM; err = snd_timer_open(&t, str, &tid, q->queue); } - if (err < 0) { - snd_printk(KERN_ERR "seq fatal error: cannot create timer (%i)\n", err); - return err; - } + } + if (err < 0) { + pr_err("ALSA: seq fatal error: cannot create timer (%i)\n", err); + return err; } t->callback = snd_seq_timer_interrupt; t->callback_data = q; diff --git a/sound/core/seq/seq_virmidi.c b/sound/core/seq/seq_virmidi.c index 4b50e604276..56e0f4cd3f8 100644 --- a/sound/core/seq/seq_virmidi.c +++ b/sound/core/seq/seq_virmidi.c @@ -446,7 +446,7 @@ static int snd_virmidi_dev_register(struct snd_rawmidi *rmidi) /* should check presence of port more strictly.. */ break; default: - snd_printk(KERN_ERR "seq_mode is not set: %d\n", rdev->seq_mode); + pr_err("ALSA: seq_virmidi: seq_mode is not set: %d\n", rdev->seq_mode); return -EINVAL; } return 0; diff --git a/sound/core/sound.c b/sound/core/sound.c index 70ccdab7415..38ad1a0dd3f 100644 --- a/sound/core/sound.c +++ b/sound/core/sound.c @@ -102,6 +102,9 @@ static void snd_request_other(int minor) * This function increments the reference counter of the card instance * if an associated instance with the given minor number and type is found. * The caller must call snd_card_unref() appropriately later. + * + * Return: The user data pointer if the specified device is found. %NULL + * otherwise. */ void *snd_lookup_minor_data(unsigned int minor, int type) { @@ -115,7 +118,7 @@ void *snd_lookup_minor_data(unsigned int minor, int type) if (mreg && mreg->type == type) { private_data = mreg->private_data; if (private_data && mreg->card_ptr) - atomic_inc(&mreg->card_ptr->refcount); + get_device(&mreg->card_ptr->card_dev); } else private_data = NULL; mutex_unlock(&sound_mutex); @@ -150,7 +153,7 @@ static int snd_open(struct inode *inode, struct file *file) { unsigned int minor = iminor(inode); struct snd_minor *mptr = NULL; - const struct file_operations *old_fops; + const struct file_operations *new_fops; int err = 0; if (minor >= ARRAY_SIZE(snd_minors)) @@ -164,24 +167,14 @@ static int snd_open(struct inode *inode, struct file *file) return -ENODEV; } } - old_fops = file->f_op; - file->f_op = fops_get(mptr->f_ops); - if (file->f_op == NULL) { - file->f_op = old_fops; - err = -ENODEV; - } + new_fops = fops_get(mptr->f_ops); mutex_unlock(&sound_mutex); - if (err < 0) - return err; + if (!new_fops) + return -ENODEV; + replace_fops(file, new_fops); - if (file->f_op->open) { + if (file->f_op->open) err = file->f_op->open(inode, file); - if (err) { - fops_put(file->f_op); - file->f_op = fops_get(old_fops); - } - } - fops_put(old_fops); return err; } @@ -261,7 +254,7 @@ static int snd_kernel_minor(int type, struct snd_card *card, int dev) * Registers an ALSA device file for the given card. * The operators have to be set in reg parameter. * - * Returns zero if successful, or a negative error code on failure. + * Return: Zero if successful, or a negative error code on failure. */ int snd_register_device_for_dev(int type, struct snd_card *card, int dev, const struct file_operations *f_ops, @@ -339,7 +332,7 @@ static int find_snd_minor(int type, struct snd_card *card, int dev) * Unregisters the device file already registered via * snd_register_device(). * - * Returns zero if sucecessful, or a negative error code on failure + * Return: Zero if successful, or a negative error code on failure. */ int snd_unregister_device(int type, struct snd_card *card, int dev) { @@ -362,22 +355,25 @@ int snd_unregister_device(int type, struct snd_card *card, int dev) EXPORT_SYMBOL(snd_unregister_device); -int snd_add_device_sysfs_file(int type, struct snd_card *card, int dev, - struct device_attribute *attr) +/* get the assigned device to the given type and device number; + * the caller needs to release it via put_device() after using it + */ +struct device *snd_get_device(int type, struct snd_card *card, int dev) { - int minor, ret = -EINVAL; - struct device *d; + int minor; + struct device *d = NULL; mutex_lock(&sound_mutex); minor = find_snd_minor(type, card, dev); - if (minor >= 0 && (d = snd_minors[minor]->dev) != NULL) - ret = device_create_file(d, attr); + if (minor >= 0) { + d = snd_minors[minor]->dev; + if (d) + get_device(d); + } mutex_unlock(&sound_mutex); - return ret; - + return d; } - -EXPORT_SYMBOL(snd_add_device_sysfs_file); +EXPORT_SYMBOL(snd_get_device); #ifdef CONFIG_PROC_FS /* @@ -465,7 +461,7 @@ static int __init alsa_sound_init(void) snd_major = major; snd_ecards_limit = cards_limit; if (register_chrdev(major, "alsa", &snd_fops)) { - snd_printk(KERN_ERR "unable to register native major device number %d\n", major); + pr_err("ALSA core: unable to register native major device number %d\n", major); return -EIO; } if (snd_info_init() < 0) { @@ -474,7 +470,7 @@ static int __init alsa_sound_init(void) } snd_info_minor_register(); #ifndef MODULE - printk(KERN_INFO "Advanced Linux Sound Architecture Driver Initialized.\n"); + pr_info("Advanced Linux Sound Architecture Driver Initialized.\n"); #endif return 0; } diff --git a/sound/core/sound_oss.c b/sound/core/sound_oss.c index 726a49ac972..573a65eb2b7 100644 --- a/sound/core/sound_oss.c +++ b/sound/core/sound_oss.c @@ -21,7 +21,7 @@ #ifdef CONFIG_SND_OSSEMUL -#if !defined(CONFIG_SOUND) && !(defined(MODULE) && defined(CONFIG_SOUND_MODULE)) +#if !IS_ENABLED(CONFIG_SOUND) #error "Enable the OSS soundcore multiplexer (CONFIG_SOUND) in the kernel." #endif @@ -55,7 +55,7 @@ void *snd_lookup_oss_minor_data(unsigned int minor, int type) if (mreg && mreg->type == type) { private_data = mreg->private_data; if (private_data && mreg->card_ptr) - atomic_inc(&mreg->card_ptr->refcount); + get_device(&mreg->card_ptr->card_dev); } else private_data = NULL; mutex_unlock(&sound_oss_mutex); @@ -105,8 +105,7 @@ static int snd_oss_kernel_minor(int type, struct snd_card *card, int dev) } int snd_register_oss_device(int type, struct snd_card *card, int dev, - const struct file_operations *f_ops, void *private_data, - const char *name) + const struct file_operations *f_ops, void *private_data) { int minor = snd_oss_kernel_minor(type, card, dev); int minor_unit; diff --git a/sound/core/timer.c b/sound/core/timer.c index 6ddcf06f52f..777a45e08e5 100644 --- a/sound/core/timer.c +++ b/sound/core/timer.c @@ -35,9 +35,9 @@ #include <sound/initval.h> #include <linux/kmod.h> -#if defined(CONFIG_SND_HRTIMER) || defined(CONFIG_SND_HRTIMER_MODULE) +#if IS_ENABLED(CONFIG_SND_HRTIMER) #define DEFAULT_TIMER_LIMIT 4 -#elif defined(CONFIG_SND_RTCTIMER) || defined(CONFIG_SND_RTCTIMER_MODULE) +#elif IS_ENABLED(CONFIG_SND_RTCTIMER) #define DEFAULT_TIMER_LIMIT 2 #else #define DEFAULT_TIMER_LIMIT 1 @@ -240,7 +240,8 @@ int snd_timer_open(struct snd_timer_instance **ti, /* open a slave instance */ if (tid->dev_sclass <= SNDRV_TIMER_SCLASS_NONE || tid->dev_sclass > SNDRV_TIMER_SCLASS_OSS_SEQUENCER) { - snd_printd("invalid slave class %i\n", tid->dev_sclass); + pr_debug("ALSA: timer: invalid slave class %i\n", + tid->dev_sclass); return -EINVAL; } mutex_lock(®ister_mutex); @@ -389,7 +390,7 @@ static void snd_timer_notify1(struct snd_timer_instance *ti, int event) struct timespec tstamp; if (timer_tstamp_monotonic) - do_posix_clock_monotonic_gettime(&tstamp); + ktime_get_ts(&tstamp); else getnstimeofday(&tstamp); if (snd_BUG_ON(event < SNDRV_TIMER_EVENT_START || @@ -774,7 +775,7 @@ int snd_timer_new(struct snd_card *card, char *id, struct snd_timer_id *tid, *rtimer = NULL; timer = kzalloc(sizeof(*timer), GFP_KERNEL); if (timer == NULL) { - snd_printk(KERN_ERR "timer: cannot allocate\n"); + pr_err("ALSA: timer: cannot allocate\n"); return -ENOMEM; } timer->tmr_class = tid->dev_class; @@ -813,7 +814,7 @@ static int snd_timer_free(struct snd_timer *timer) if (! list_empty(&timer->open_list_head)) { struct list_head *p, *n; struct snd_timer_instance *ti; - snd_printk(KERN_WARNING "timer %p is busy?\n", timer); + pr_warn("ALSA: timer %p is busy?\n", timer); list_for_each_safe(p, n, &timer->open_list_head) { list_del_init(p); ti = list_entry(p, struct snd_timer_instance, open_list); @@ -1202,7 +1203,7 @@ static void snd_timer_user_tinterrupt(struct snd_timer_instance *timeri, } if (tu->last_resolution != resolution || ticks > 0) { if (timer_tstamp_monotonic) - do_posix_clock_monotonic_gettime(&tstamp); + ktime_get_ts(&tstamp); else getnstimeofday(&tstamp); } @@ -1955,12 +1956,10 @@ static int __init alsa_timer_init(void) #endif if ((err = snd_timer_register_system()) < 0) - snd_printk(KERN_ERR "unable to register system timer (%i)\n", - err); + pr_err("ALSA: unable to register system timer (%i)\n", err); if ((err = snd_register_device(SNDRV_DEVICE_TYPE_TIMER, NULL, 0, &snd_timer_f_ops, NULL, "timer")) < 0) - snd_printk(KERN_ERR "unable to register timer device (%i)\n", - err); + pr_err("ALSA: unable to register timer device (%i)\n", err); snd_timer_proc_init(); return 0; } diff --git a/sound/core/vmaster.c b/sound/core/vmaster.c index 857586135d1..6c58e6f73a0 100644 --- a/sound/core/vmaster.c +++ b/sound/core/vmaster.c @@ -101,7 +101,7 @@ static int slave_init(struct link_slave *slave) if (slave->info.count > 2 || (slave->info.type != SNDRV_CTL_ELEM_TYPE_INTEGER && slave->info.type != SNDRV_CTL_ELEM_TYPE_BOOLEAN)) { - snd_printk(KERN_ERR "invalid slave element\n"); + pr_err("ALSA: vmaster: invalid slave element\n"); kfree(uinfo); return -EINVAL; } @@ -213,7 +213,10 @@ static int slave_put(struct snd_kcontrol *kcontrol, } if (!changed) return 0; - return slave_put_val(slave, ucontrol); + err = slave_put_val(slave, ucontrol); + if (err < 0) + return err; + return 1; } static int slave_tlv_cmd(struct snd_kcontrol *kcontrol, @@ -307,20 +310,10 @@ static int master_get(struct snd_kcontrol *kcontrol, return 0; } -static int master_put(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) +static int sync_slaves(struct link_master *master, int old_val, int new_val) { - struct link_master *master = snd_kcontrol_chip(kcontrol); struct link_slave *slave; struct snd_ctl_elem_value *uval; - int err, old_val; - - err = master_init(master); - if (err < 0) - return err; - old_val = master->val; - if (ucontrol->value.integer.value[0] == old_val) - return 0; uval = kmalloc(sizeof(*uval), GFP_KERNEL); if (!uval) @@ -329,11 +322,33 @@ static int master_put(struct snd_kcontrol *kcontrol, master->val = old_val; uval->id = slave->slave.id; slave_get_val(slave, uval); - master->val = ucontrol->value.integer.value[0]; + master->val = new_val; slave_put_val(slave, uval); } kfree(uval); - if (master->hook && !err) + return 0; +} + +static int master_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct link_master *master = snd_kcontrol_chip(kcontrol); + int err, new_val, old_val; + bool first_init; + + err = master_init(master); + if (err < 0) + return err; + first_init = err; + old_val = master->val; + new_val = ucontrol->value.integer.value[0]; + if (new_val == old_val) + return 0; + + err = sync_slaves(master, old_val, new_val); + if (err < 0) + return err; + if (master->hook && !first_init) master->hook(master->hook_private_data, master->val); return 1; } @@ -362,8 +377,7 @@ static void master_free(struct snd_kcontrol *kcontrol) * @name: name string of the control element to create * @tlv: optional TLV int array for dB information * - * Creates a virtual matster control with the given name string. - * Returns the created control element, or NULL for errors (ENOMEM). + * Creates a virtual master control with the given name string. * * After creating a vmaster element, you can add the slave controls * via snd_ctl_add_slave() or snd_ctl_add_slave_uncached(). @@ -372,6 +386,8 @@ static void master_free(struct snd_kcontrol *kcontrol) * for dB scale of the master control. It should be a single element * with #SNDRV_CTL_TLVT_DB_SCALE, #SNDRV_CTL_TLV_DB_MINMAX or * #SNDRV_CTL_TLVT_DB_MINMAX_MUTE type, and should be the max 0dB. + * + * Return: The created control element, or %NULL for errors (ENOMEM). */ struct snd_kcontrol *snd_ctl_make_virtual_master(char *name, const unsigned int *tlv) @@ -423,6 +439,8 @@ EXPORT_SYMBOL(snd_ctl_make_virtual_master); * * Adds the given hook to the vmaster control element so that it's called * at each time when the value is changed. + * + * Return: Zero. */ int snd_ctl_add_vmaster_hook(struct snd_kcontrol *kcontrol, void (*hook)(void *private_data, int), @@ -436,20 +454,33 @@ int snd_ctl_add_vmaster_hook(struct snd_kcontrol *kcontrol, EXPORT_SYMBOL_GPL(snd_ctl_add_vmaster_hook); /** - * snd_ctl_sync_vmaster_hook - Sync the vmaster hook + * snd_ctl_sync_vmaster - Sync the vmaster slaves and hook * @kcontrol: vmaster kctl element + * @hook_only: sync only the hook * - * Call the hook function to synchronize with the current value of the given - * vmaster element. NOP when NULL is passed to @kcontrol or the hook doesn't - * exist. + * Forcibly call the put callback of each slave and call the hook function + * to synchronize with the current value of the given vmaster element. + * NOP when NULL is passed to @kcontrol. */ -void snd_ctl_sync_vmaster_hook(struct snd_kcontrol *kcontrol) +void snd_ctl_sync_vmaster(struct snd_kcontrol *kcontrol, bool hook_only) { struct link_master *master; + bool first_init = false; + if (!kcontrol) return; master = snd_kcontrol_chip(kcontrol); - if (master->hook) + if (!hook_only) { + int err = master_init(master); + if (err < 0) + return; + first_init = err; + err = sync_slaves(master, master->val, master->val); + if (err < 0) + return; + } + + if (master->hook && !first_init) master->hook(master->hook_private_data, master->val); } -EXPORT_SYMBOL_GPL(snd_ctl_sync_vmaster_hook); +EXPORT_SYMBOL_GPL(snd_ctl_sync_vmaster); |