/*
* Digital Audio (PCM) abstract layer
- * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
*
*
* This program is free software; you can redistribute it and/or modify
*
*/
-#include <sound/driver.h>
#include <linux/mm.h>
-#include <linux/smp_lock.h>
#include <linux/file.h>
#include <linux/slab.h>
#include <linux/time.h>
runtime->period_size = params_period_size(params);
runtime->periods = params_periods(params);
runtime->buffer_size = params_buffer_size(params);
- runtime->tick_time = params_tick_time(params);
runtime->info = params->info;
runtime->rate_num = params->rate_num;
runtime->rate_den = params->rate_den;
/* Default sw params */
runtime->tstamp_mode = SNDRV_PCM_TSTAMP_NONE;
runtime->period_step = 1;
- runtime->sleep_min = 0;
runtime->control->avail_min = runtime->period_size;
- runtime->xfer_align = runtime->period_size;
runtime->start_threshold = 1;
runtime->stop_threshold = runtime->buffer_size;
runtime->silence_threshold = 0;
return -EINVAL;
if (params->avail_min == 0)
return -EINVAL;
- if (params->xfer_align == 0 ||
- params->xfer_align % runtime->min_align != 0)
- return -EINVAL;
if (params->silence_size >= runtime->boundary) {
if (params->silence_threshold != 0)
return -EINVAL;
}
snd_pcm_stream_lock_irq(substream);
runtime->tstamp_mode = params->tstamp_mode;
- runtime->sleep_min = params->sleep_min;
runtime->period_step = params->period_step;
runtime->control->avail_min = params->avail_min;
runtime->start_threshold = params->start_threshold;
runtime->stop_threshold = params->stop_threshold;
runtime->silence_threshold = params->silence_threshold;
runtime->silence_size = params->silence_size;
- runtime->xfer_align = params->xfer_align;
params->boundary = runtime->boundary;
if (snd_pcm_running(substream)) {
- if (runtime->sleep_min)
- snd_pcm_tick_prepare(substream);
- else
- snd_pcm_tick_set(substream, 0);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK &&
runtime->silence_size > 0)
snd_pcm_playback_silence(substream, ULONG_MAX);
status->trigger_tstamp = runtime->trigger_tstamp;
if (snd_pcm_running(substream)) {
snd_pcm_update_hw_ptr(substream);
- if (runtime->tstamp_mode & SNDRV_PCM_TSTAMP_MMAP)
+ if (runtime->tstamp_mode == SNDRV_PCM_TSTAMP_ENABLE) {
status->tstamp = runtime->status->tstamp;
- else
- getnstimeofday(&status->tstamp);
- } else
- getnstimeofday(&status->tstamp);
+ goto _tstamp_end;
+ }
+ }
+ snd_pcm_gettime(runtime, &status->tstamp);
+ _tstamp_end:
status->appl_ptr = runtime->control->appl_ptr;
status->hw_ptr = runtime->status->hw_ptr;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
if (runtime->trigger_master == NULL)
return;
if (runtime->trigger_master == substream) {
- getnstimeofday(&runtime->trigger_tstamp);
+ snd_pcm_gettime(runtime, &runtime->trigger_tstamp);
} else {
snd_pcm_trigger_tstamp(runtime->trigger_master);
runtime->trigger_tstamp = runtime->trigger_master->runtime->trigger_tstamp;
struct snd_pcm_substream *substream,
int state, int do_lock)
{
- struct list_head *pos;
struct snd_pcm_substream *s = NULL;
struct snd_pcm_substream *s1;
int res = 0;
- snd_pcm_group_for_each(pos, substream) {
- s = snd_pcm_group_substream_entry(pos);
+ snd_pcm_group_for_each_entry(s, substream) {
if (do_lock && s != substream)
- spin_lock(&s->self_group.lock);
+ spin_lock_nested(&s->self_group.lock,
+ SINGLE_DEPTH_NESTING);
res = ops->pre_action(s, state);
if (res < 0)
goto _unlock;
}
- snd_pcm_group_for_each(pos, substream) {
- s = snd_pcm_group_substream_entry(pos);
+ snd_pcm_group_for_each_entry(s, substream) {
res = ops->do_action(s, state);
if (res < 0) {
if (ops->undo_action) {
- snd_pcm_group_for_each(pos, substream) {
- s1 = snd_pcm_group_substream_entry(pos);
+ snd_pcm_group_for_each_entry(s1, substream) {
if (s1 == s) /* failed stream */
break;
ops->undo_action(s1, state);
goto _unlock;
}
}
- snd_pcm_group_for_each(pos, substream) {
- s = snd_pcm_group_substream_entry(pos);
+ snd_pcm_group_for_each_entry(s, substream) {
ops->post_action(s, state);
}
_unlock:
if (do_lock) {
/* unlock streams */
- snd_pcm_group_for_each(pos, substream) {
- s1 = snd_pcm_group_substream_entry(pos);
+ snd_pcm_group_for_each_entry(s1, substream) {
if (s1 != substream)
spin_unlock(&s1->self_group.lock);
if (s1 == s) /* end */
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK &&
runtime->silence_size > 0)
snd_pcm_playback_silence(substream, ULONG_MAX);
- if (runtime->sleep_min)
- snd_pcm_tick_prepare(substream);
if (substream->timer)
snd_timer_notify(substream->timer, SNDRV_TIMER_EVENT_MSTART,
&runtime->trigger_tstamp);
snd_timer_notify(substream->timer, SNDRV_TIMER_EVENT_MSTOP,
&runtime->trigger_tstamp);
runtime->status->state = state;
- snd_pcm_tick_set(substream, 0);
}
wake_up(&runtime->sleep);
}
snd_timer_notify(substream->timer,
SNDRV_TIMER_EVENT_MPAUSE,
&runtime->trigger_tstamp);
- snd_pcm_tick_set(substream, 0);
wake_up(&runtime->sleep);
} else {
runtime->status->state = SNDRV_PCM_STATE_RUNNING;
- if (runtime->sleep_min)
- snd_pcm_tick_prepare(substream);
if (substream->timer)
snd_timer_notify(substream->timer,
SNDRV_TIMER_EVENT_MCONTINUE,
&runtime->trigger_tstamp);
runtime->status->suspended_state = runtime->status->state;
runtime->status->state = SNDRV_PCM_STATE_SUSPENDED;
- snd_pcm_tick_set(substream, 0);
wake_up(&runtime->sleep);
}
snd_timer_notify(substream->timer, SNDRV_TIMER_EVENT_MRESUME,
&runtime->trigger_tstamp);
runtime->status->state = runtime->status->suspended_state;
- if (runtime->sleep_min)
- snd_pcm_tick_prepare(substream);
}
static struct action_ops snd_pcm_action_resume = {
} else {
/* stop running stream */
if (runtime->status->state == SNDRV_PCM_STATE_RUNNING) {
- int state = snd_pcm_capture_avail(runtime) > 0 ?
+ int new_state = snd_pcm_capture_avail(runtime) > 0 ?
SNDRV_PCM_STATE_DRAINING : SNDRV_PCM_STATE_SETUP;
- snd_pcm_do_stop(substream, state);
- snd_pcm_post_stop(substream, state);
+ snd_pcm_do_stop(substream, new_state);
+ snd_pcm_post_stop(substream, new_state);
}
}
return 0;
{
struct snd_card *card;
struct snd_pcm_runtime *runtime;
- struct list_head *pos;
+ struct snd_pcm_substream *s;
int result = 0;
int i, num_drecs;
struct drain_rec *drec, drec_tmp, *d;
/* count only playback streams */
num_drecs = 0;
- snd_pcm_group_for_each(pos, substream) {
- struct snd_pcm_substream *s = snd_pcm_group_substream_entry(pos);
+ snd_pcm_group_for_each_entry(s, substream) {
runtime = s->runtime;
if (s->stream == SNDRV_PCM_STREAM_PLAYBACK) {
d = &drec[num_drecs++];
snd_pcm_stream_lock_irq(substream);
/* resume pause */
- if (runtime->status->state == SNDRV_PCM_STATE_PAUSED)
+ if (substream->runtime->status->state == SNDRV_PCM_STATE_PAUSED)
snd_pcm_pause(substream, 0);
/* pre-start/stop - all running streams are changed to DRAINING state */
static int snd_pcm_unlink(struct snd_pcm_substream *substream)
{
- struct list_head *pos;
+ struct snd_pcm_substream *s;
int res = 0;
down_write(&snd_pcm_link_rwsem);
list_del(&substream->link_list);
substream->group->count--;
if (substream->group->count == 1) { /* detach the last stream, too */
- snd_pcm_group_for_each(pos, substream) {
- relink_to_local(snd_pcm_group_substream_entry(pos));
+ snd_pcm_group_for_each_entry(s, substream) {
+ relink_to_local(s);
break;
}
kfree(substream->group);
static unsigned int rates[] = { 5512, 8000, 11025, 16000, 22050, 32000, 44100,
48000, 64000, 88200, 96000, 176400, 192000 };
+const struct snd_pcm_hw_constraint_list snd_pcm_known_rates = {
+ .count = ARRAY_SIZE(rates),
+ .list = rates,
+};
+
static int snd_pcm_hw_rule_rate(struct snd_pcm_hw_params *params,
struct snd_pcm_hw_rule *rule)
{
struct snd_pcm_hardware *hw = rule->private;
return snd_interval_list(hw_param_interval(params, rule->var),
- ARRAY_SIZE(rates), rates, hw->rates);
+ snd_pcm_known_rates.count,
+ snd_pcm_known_rates.list, hw->rates);
}
static int snd_pcm_hw_rule_buffer_bytes_max(struct snd_pcm_hw_params *params,
}
/* FIXME: this belong to lowlevel */
- snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_TICK_TIME,
- 1000000 / HZ, 1000000 / HZ);
snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE);
return 0;
}
if (frames > (snd_pcm_uframes_t)hw_avail)
frames = hw_avail;
- else
- frames -= frames % runtime->xfer_align;
appl_ptr = runtime->control->appl_ptr - frames;
if (appl_ptr < 0)
appl_ptr += runtime->boundary;
runtime->control->appl_ptr = appl_ptr;
- if (runtime->status->state == SNDRV_PCM_STATE_RUNNING &&
- runtime->sleep_min)
- snd_pcm_tick_prepare(substream);
ret = frames;
__end:
snd_pcm_stream_unlock_irq(substream);
}
if (frames > (snd_pcm_uframes_t)hw_avail)
frames = hw_avail;
- else
- frames -= frames % runtime->xfer_align;
appl_ptr = runtime->control->appl_ptr - frames;
if (appl_ptr < 0)
appl_ptr += runtime->boundary;
runtime->control->appl_ptr = appl_ptr;
- if (runtime->status->state == SNDRV_PCM_STATE_RUNNING &&
- runtime->sleep_min)
- snd_pcm_tick_prepare(substream);
ret = frames;
__end:
snd_pcm_stream_unlock_irq(substream);
}
if (frames > (snd_pcm_uframes_t)avail)
frames = avail;
- else
- frames -= frames % runtime->xfer_align;
appl_ptr = runtime->control->appl_ptr + frames;
if (appl_ptr >= (snd_pcm_sframes_t)runtime->boundary)
appl_ptr -= runtime->boundary;
runtime->control->appl_ptr = appl_ptr;
- if (runtime->status->state == SNDRV_PCM_STATE_RUNNING &&
- runtime->sleep_min)
- snd_pcm_tick_prepare(substream);
ret = frames;
__end:
snd_pcm_stream_unlock_irq(substream);
}
if (frames > (snd_pcm_uframes_t)avail)
frames = avail;
- else
- frames -= frames % runtime->xfer_align;
appl_ptr = runtime->control->appl_ptr + frames;
if (appl_ptr >= (snd_pcm_sframes_t)runtime->boundary)
appl_ptr -= runtime->boundary;
runtime->control->appl_ptr = appl_ptr;
- if (runtime->status->state == SNDRV_PCM_STATE_RUNNING &&
- runtime->sleep_min)
- snd_pcm_tick_prepare(substream);
ret = frames;
__end:
snd_pcm_stream_unlock_irq(substream);
return -EFAULT;
return 0;
}
+
+static int snd_pcm_tstamp(struct snd_pcm_substream *substream, int __user *_arg)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ int arg;
+
+ if (get_user(arg, _arg))
+ return -EFAULT;
+ if (arg < 0 || arg > SNDRV_PCM_TSTAMP_TYPE_LAST)
+ return -EINVAL;
+ runtime->tstamp_type = SNDRV_PCM_TSTAMP_TYPE_GETTIMEOFDAY;
+ if (arg == SNDRV_PCM_TSTAMP_TYPE_MONOTONIC)
+ runtime->tstamp_type = SNDRV_PCM_TSTAMP_TYPE_MONOTONIC;
+ return 0;
+}
static int snd_pcm_common_ioctl1(struct file *file,
struct snd_pcm_substream *substream,
return put_user(SNDRV_PCM_VERSION, (int __user *)arg) ? -EFAULT : 0;
case SNDRV_PCM_IOCTL_INFO:
return snd_pcm_info_user(substream, arg);
- case SNDRV_PCM_IOCTL_TSTAMP: /* just for compatibility */
+ case SNDRV_PCM_IOCTL_TSTAMP: /* just for compatibility */
return 0;
+ case SNDRV_PCM_IOCTL_TTSTAMP:
+ return snd_pcm_tstamp(substream, arg);
case SNDRV_PCM_IOCTL_HW_REFINE:
return snd_pcm_hw_refine_user(substream, arg);
case SNDRV_PCM_IOCTL_HW_PARAMS:
/*
* mmap status record
*/
-static struct page * snd_pcm_mmap_status_nopage(struct vm_area_struct *area,
- unsigned long address, int *type)
+static int snd_pcm_mmap_status_fault(struct vm_area_struct *area,
+ struct vm_fault *vmf)
{
struct snd_pcm_substream *substream = area->vm_private_data;
struct snd_pcm_runtime *runtime;
- struct page * page;
if (substream == NULL)
- return NOPAGE_SIGBUS;
+ return VM_FAULT_SIGBUS;
runtime = substream->runtime;
- page = virt_to_page(runtime->status);
- get_page(page);
- if (type)
- *type = VM_FAULT_MINOR;
- return page;
+ vmf->page = virt_to_page(runtime->status);
+ get_page(vmf->page);
+ return 0;
}
static struct vm_operations_struct snd_pcm_vm_ops_status =
{
- .nopage = snd_pcm_mmap_status_nopage,
+ .fault = snd_pcm_mmap_status_fault,
};
static int snd_pcm_mmap_status(struct snd_pcm_substream *substream, struct file *file,
/*
* mmap control record
*/
-static struct page * snd_pcm_mmap_control_nopage(struct vm_area_struct *area,
- unsigned long address, int *type)
+static int snd_pcm_mmap_control_fault(struct vm_area_struct *area,
+ struct vm_fault *vmf)
{
struct snd_pcm_substream *substream = area->vm_private_data;
struct snd_pcm_runtime *runtime;
- struct page * page;
if (substream == NULL)
- return NOPAGE_SIGBUS;
+ return VM_FAULT_SIGBUS;
runtime = substream->runtime;
- page = virt_to_page(runtime->control);
- get_page(page);
- if (type)
- *type = VM_FAULT_MINOR;
- return page;
+ vmf->page = virt_to_page(runtime->control);
+ get_page(vmf->page);
+ return 0;
}
static struct vm_operations_struct snd_pcm_vm_ops_control =
{
- .nopage = snd_pcm_mmap_control_nopage,
+ .fault = snd_pcm_mmap_control_fault,
};
static int snd_pcm_mmap_control(struct snd_pcm_substream *substream, struct file *file,
#endif /* coherent mmap */
/*
- * nopage callback for mmapping a RAM page
+ * fault callback for mmapping a RAM page
*/
-static struct page *snd_pcm_mmap_data_nopage(struct vm_area_struct *area,
- unsigned long address, int *type)
+static int snd_pcm_mmap_data_fault(struct vm_area_struct *area,
+ struct vm_fault *vmf)
{
struct snd_pcm_substream *substream = area->vm_private_data;
struct snd_pcm_runtime *runtime;
size_t dma_bytes;
if (substream == NULL)
- return NOPAGE_SIGBUS;
+ return VM_FAULT_SIGBUS;
runtime = substream->runtime;
- offset = area->vm_pgoff << PAGE_SHIFT;
- offset += address - area->vm_start;
- snd_assert((offset % PAGE_SIZE) == 0, return NOPAGE_SIGBUS);
+ offset = vmf->pgoff << PAGE_SHIFT;
dma_bytes = PAGE_ALIGN(runtime->dma_bytes);
if (offset > dma_bytes - PAGE_SIZE)
- return NOPAGE_SIGBUS;
+ return VM_FAULT_SIGBUS;
if (substream->ops->page) {
page = substream->ops->page(substream, offset);
- if (! page)
- return NOPAGE_OOM; /* XXX: is this really due to OOM? */
+ if (!page)
+ return VM_FAULT_SIGBUS;
} else {
vaddr = runtime->dma_area + offset;
page = virt_to_page(vaddr);
}
get_page(page);
- if (type)
- *type = VM_FAULT_MINOR;
- return page;
+ vmf->page = page;
+ return 0;
}
static struct vm_operations_struct snd_pcm_vm_ops_data =
{
.open = snd_pcm_mmap_data_open,
.close = snd_pcm_mmap_data_close,
- .nopage = snd_pcm_mmap_data_nopage,
+ .fault = snd_pcm_mmap_data_fault,
};
/*
* Register section
*/
-struct file_operations snd_pcm_f_ops[2] = {
+const struct file_operations snd_pcm_f_ops[2] = {
{
.owner = THIS_MODULE,
.write = snd_pcm_write,
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