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Commit cb639a42 authored by Takashi Iwai's avatar Takashi Iwai
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ALSA: pcm: Fix sparse warnings wrt snd_pcm_state_t 

Since we have a bitwise definition of snd_pcm_state_t and use it for
certain struct fields, a few new (and years old) sparse warnings came
up.  This patch is an attempt to cover them.

- The state fields in snd_pcm_mmap_status* and co are all defined as
  snd_pcm_state_t type now

- The PCM action callbacks take snd_pcm_state_t argument as well;
  some actions taking special values got the explicit cast and
  comments

- For the PCM action that doesn't need an extra argument receives
  ACTION_ARG_IGNORE instead of ambiguous 0

While we're at it, the boolean argument is also properly changed to
bool and true/false, as well as a slight refactoring of PCM pause
helper function to make easier to read.

No functional changes, just shutting up chatty sparse.

Fixes: 46b770f7 ("ALSA: uapi: Fix sparse warning")
Reported-by: default avatarkbuild test robot <lkp@intel.com>
Link: https://lore.kernel.org/r/20200131152214.11698-1-tiwai@suse.deSigned-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 66f2d19f
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Showing with 127 additions and 72 deletions
include/sound/pcm.h
View file @ cb639a42
......@@ -1450,7 +1450,7 @@ struct snd_pcm_status64 {
#define SNDRV_PCM_IOCTL_STATUS_EXT64 _IOWR('A', 0x24, struct snd_pcm_status64)
struct snd_pcm_status32 {
s32 state; /* stream state */
snd_pcm_state_t state; /* stream state */
s32 trigger_tstamp_sec; /* time when stream was started/stopped/paused */
s32 trigger_tstamp_nsec;
s32 tstamp_sec; /* reference timestamp */
......@@ -1461,7 +1461,7 @@ struct snd_pcm_status32 {
u32 avail; /* number of frames available */
u32 avail_max; /* max frames available on hw since last status */
u32 overrange; /* count of ADC (capture) overrange detections from last status */
s32 suspended_state; /* suspended stream state */
snd_pcm_state_t suspended_state; /* suspended stream state */
u32 audio_tstamp_data; /* needed for 64-bit alignment, used for configs/report to/from userspace */
s32 audio_tstamp_sec; /* sample counter, wall clock, PHC or on-demand sync'ed */
s32 audio_tstamp_nsec;
......
sound/core/pcm_compat.c
View file @ cb639a42
......@@ -156,7 +156,7 @@ static int snd_pcm_channel_info_user(struct snd_pcm_substream *substream,
#endif /* CONFIG_X86_X32 */
struct compat_snd_pcm_status64 {
s32 state;
snd_pcm_state_t state;
u8 rsvd[4]; /* alignment */
s64 trigger_tstamp_sec;
s64 trigger_tstamp_nsec;
......@@ -168,7 +168,7 @@ struct compat_snd_pcm_status64 {
u32 avail;
u32 avail_max;
u32 overrange;
s32 suspended_state;
snd_pcm_state_t suspended_state;
u32 audio_tstamp_data;
s64 audio_tstamp_sec;
s64 audio_tstamp_nsec;
......@@ -376,13 +376,13 @@ static int snd_pcm_ioctl_xfern_compat(struct snd_pcm_substream *substream,
#ifdef CONFIG_X86_X32
/* X32 ABI has 64bit timespec and 64bit alignment */
struct snd_pcm_mmap_status_x32 {
s32 state;
snd_pcm_state_t state;
s32 pad1;
u32 hw_ptr;
u32 pad2; /* alignment */
s64 tstamp_sec;
s64 tstamp_nsec;
s32 suspended_state;
snd_pcm_state_t suspended_state;
s32 pad3;
s64 audio_tstamp_sec;
s64 audio_tstamp_nsec;
......
sound/core/pcm_native.c
View file @ cb639a42
......@@ -551,7 +551,8 @@ static int period_to_usecs(struct snd_pcm_runtime *runtime)
return usecs;
}
static void snd_pcm_set_state(struct snd_pcm_substream *substream, int state)
static void snd_pcm_set_state(struct snd_pcm_substream *substream,
snd_pcm_state_t state)
{
snd_pcm_stream_lock_irq(substream);
if (substream->runtime->status->state != SNDRV_PCM_STATE_DISCONNECTED)
......@@ -1105,11 +1106,17 @@ static void snd_pcm_trigger_tstamp(struct snd_pcm_substream *substream)
runtime->trigger_master = NULL;
}
#define ACTION_ARG_IGNORE (__force snd_pcm_state_t)0
struct action_ops {
int (*pre_action)(struct snd_pcm_substream *substream, int state);
int (*do_action)(struct snd_pcm_substream *substream, int state);
void (*undo_action)(struct snd_pcm_substream *substream, int state);
void (*post_action)(struct snd_pcm_substream *substream, int state);
int (*pre_action)(struct snd_pcm_substream *substream,
snd_pcm_state_t state);
int (*do_action)(struct snd_pcm_substream *substream,
snd_pcm_state_t state);
void (*undo_action)(struct snd_pcm_substream *substream,
snd_pcm_state_t state);
void (*post_action)(struct snd_pcm_substream *substream,
snd_pcm_state_t state);
};
/*
......@@ -1119,7 +1126,8 @@ struct action_ops {
*/
static int snd_pcm_action_group(const struct action_ops *ops,
struct snd_pcm_substream *substream,
int state, int do_lock)
snd_pcm_state_t state,
bool do_lock)
{
struct snd_pcm_substream *s = NULL;
struct snd_pcm_substream *s1;
......@@ -1176,7 +1184,7 @@ static int snd_pcm_action_group(const struct action_ops *ops,
*/
static int snd_pcm_action_single(const struct action_ops *ops,
struct snd_pcm_substream *substream,
int state)
snd_pcm_state_t state)
{
int res;
......@@ -1257,14 +1265,14 @@ snd_pcm_stream_group_ref(struct snd_pcm_substream *substream)
*/
static int snd_pcm_action(const struct action_ops *ops,
struct snd_pcm_substream *substream,
int state)
snd_pcm_state_t state)
{
struct snd_pcm_group *group;
int res;
group = snd_pcm_stream_group_ref(substream);
if (group)
res = snd_pcm_action_group(ops, substream, state, 1);
res = snd_pcm_action_group(ops, substream, state, true);
else
res = snd_pcm_action_single(ops, substream, state);
snd_pcm_group_unref(group, substream);
......@@ -1276,7 +1284,7 @@ static int snd_pcm_action(const struct action_ops *ops,
*/
static int snd_pcm_action_lock_irq(const struct action_ops *ops,
struct snd_pcm_substream *substream,
int state)
snd_pcm_state_t state)
{
int res;
......@@ -1290,14 +1298,14 @@ static int snd_pcm_action_lock_irq(const struct action_ops *ops,
*/
static int snd_pcm_action_nonatomic(const struct action_ops *ops,
struct snd_pcm_substream *substream,
int state)
snd_pcm_state_t state)
{
int res;
/* Guarantee the group members won't change during non-atomic action */
down_read(&snd_pcm_link_rwsem);
if (snd_pcm_stream_linked(substream))
res = snd_pcm_action_group(ops, substream, state, 0);
res = snd_pcm_action_group(ops, substream, state, false);
else
res = snd_pcm_action_single(ops, substream, state);
up_read(&snd_pcm_link_rwsem);
......@@ -1307,7 +1315,8 @@ static int snd_pcm_action_nonatomic(const struct action_ops *ops,
/*
* start callbacks
*/
static int snd_pcm_pre_start(struct snd_pcm_substream *substream, int state)
static int snd_pcm_pre_start(struct snd_pcm_substream *substream,
snd_pcm_state_t state)
{
struct snd_pcm_runtime *runtime = substream->runtime;
if (runtime->status->state != SNDRV_PCM_STATE_PREPARED)
......@@ -1320,20 +1329,23 @@ static int snd_pcm_pre_start(struct snd_pcm_substream *substream, int state)
return 0;
}
static int snd_pcm_do_start(struct snd_pcm_substream *substream, int state)
static int snd_pcm_do_start(struct snd_pcm_substream *substream,
snd_pcm_state_t state)
{
if (substream->runtime->trigger_master != substream)
return 0;
return substream->ops->trigger(substream, SNDRV_PCM_TRIGGER_START);
}
static void snd_pcm_undo_start(struct snd_pcm_substream *substream, int state)
static void snd_pcm_undo_start(struct snd_pcm_substream *substream,
snd_pcm_state_t state)
{
if (substream->runtime->trigger_master == substream)
substream->ops->trigger(substream, SNDRV_PCM_TRIGGER_STOP);
}
static void snd_pcm_post_start(struct snd_pcm_substream *substream, int state)
static void snd_pcm_post_start(struct snd_pcm_substream *substream,
snd_pcm_state_t state)
{
struct snd_pcm_runtime *runtime = substream->runtime;
snd_pcm_trigger_tstamp(substream);
......@@ -1377,7 +1389,8 @@ static int snd_pcm_start_lock_irq(struct snd_pcm_substream *substream)
/*
* stop callbacks
*/
static int snd_pcm_pre_stop(struct snd_pcm_substream *substream, int state)
static int snd_pcm_pre_stop(struct snd_pcm_substream *substream,
snd_pcm_state_t state)
{
struct snd_pcm_runtime *runtime = substream->runtime;
if (runtime->status->state == SNDRV_PCM_STATE_OPEN)
......@@ -1386,7 +1399,8 @@ static int snd_pcm_pre_stop(struct snd_pcm_substream *substream, int state)
return 0;
}
static int snd_pcm_do_stop(struct snd_pcm_substream *substream, int state)
static int snd_pcm_do_stop(struct snd_pcm_substream *substream,
snd_pcm_state_t state)
{
if (substream->runtime->trigger_master == substream &&
snd_pcm_running(substream))
......@@ -1394,7 +1408,8 @@ static int snd_pcm_do_stop(struct snd_pcm_substream *substream, int state)
return 0; /* unconditonally stop all substreams */
}
static void snd_pcm_post_stop(struct snd_pcm_substream *substream, int state)
static void snd_pcm_post_stop(struct snd_pcm_substream *substream,
snd_pcm_state_t state)
{
struct snd_pcm_runtime *runtime = substream->runtime;
if (runtime->status->state != state) {
......@@ -1465,14 +1480,17 @@ int snd_pcm_stop_xrun(struct snd_pcm_substream *substream)
EXPORT_SYMBOL_GPL(snd_pcm_stop_xrun);
/*
* pause callbacks
* pause callbacks: pass boolean (to start pause or resume) as state argument
*/
static int snd_pcm_pre_pause(struct snd_pcm_substream *substream, int push)
#define pause_pushed(state) (__force bool)(state)
static int snd_pcm_pre_pause(struct snd_pcm_substream *substream,
snd_pcm_state_t state)
{
struct snd_pcm_runtime *runtime = substream->runtime;
if (!(runtime->info & SNDRV_PCM_INFO_PAUSE))
return -ENOSYS;
if (push) {
if (pause_pushed(state)) {
if (runtime->status->state != SNDRV_PCM_STATE_RUNNING)
return -EBADFD;
} else if (runtime->status->state != SNDRV_PCM_STATE_PAUSED)
......@@ -1481,13 +1499,14 @@ static int snd_pcm_pre_pause(struct snd_pcm_substream *substream, int push)
return 0;
}
static int snd_pcm_do_pause(struct snd_pcm_substream *substream, int push)
static int snd_pcm_do_pause(struct snd_pcm_substream *substream,
snd_pcm_state_t state)
{
if (substream->runtime->trigger_master != substream)
return 0;
/* some drivers might use hw_ptr to recover from the pause -
update the hw_ptr now */
if (push)
if (pause_pushed(state))
snd_pcm_update_hw_ptr(substream);
/* The jiffies check in snd_pcm_update_hw_ptr*() is done by
* a delta between the current jiffies, this gives a large enough
......@@ -1495,23 +1514,27 @@ static int snd_pcm_do_pause(struct snd_pcm_substream *substream, int push)
*/
substream->runtime->hw_ptr_jiffies = jiffies - HZ * 1000;
return substream->ops->trigger(substream,
push ? SNDRV_PCM_TRIGGER_PAUSE_PUSH :
SNDRV_PCM_TRIGGER_PAUSE_RELEASE);
pause_pushed(state) ?
SNDRV_PCM_TRIGGER_PAUSE_PUSH :
SNDRV_PCM_TRIGGER_PAUSE_RELEASE);
}
static void snd_pcm_undo_pause(struct snd_pcm_substream *substream, int push)
static void snd_pcm_undo_pause(struct snd_pcm_substream *substream,
snd_pcm_state_t state)
{
if (substream->runtime->trigger_master == substream)
substream->ops->trigger(substream,
push ? SNDRV_PCM_TRIGGER_PAUSE_RELEASE :
pause_pushed(state) ?
SNDRV_PCM_TRIGGER_PAUSE_RELEASE :
SNDRV_PCM_TRIGGER_PAUSE_PUSH);
}
static void snd_pcm_post_pause(struct snd_pcm_substream *substream, int push)
static void snd_pcm_post_pause(struct snd_pcm_substream *substream,
snd_pcm_state_t state)
{
struct snd_pcm_runtime *runtime = substream->runtime;
snd_pcm_trigger_tstamp(substream);
if (push) {
if (pause_pushed(state)) {
runtime->status->state = SNDRV_PCM_STATE_PAUSED;
snd_pcm_timer_notify(substream, SNDRV_TIMER_EVENT_MPAUSE);
wake_up(&runtime->sleep);
......@@ -1532,15 +1555,24 @@ static const struct action_ops snd_pcm_action_pause = {
/*
* Push/release the pause for all linked streams.
*/
static int snd_pcm_pause(struct snd_pcm_substream *substream, int push)
static int snd_pcm_pause(struct snd_pcm_substream *substream, bool push)
{
return snd_pcm_action(&snd_pcm_action_pause, substream, push);
return snd_pcm_action(&snd_pcm_action_pause, substream,
(__force snd_pcm_state_t)push);
}
static int snd_pcm_pause_lock_irq(struct snd_pcm_substream *substream,
bool push)
{
return snd_pcm_action_lock_irq(&snd_pcm_action_pause, substream,
(__force snd_pcm_state_t)push);
}
#ifdef CONFIG_PM
/* suspend */
/* suspend callback: state argument ignored */
static int snd_pcm_pre_suspend(struct snd_pcm_substream *substream, int state)
static int snd_pcm_pre_suspend(struct snd_pcm_substream *substream,
snd_pcm_state_t state)
{
struct snd_pcm_runtime *runtime = substream->runtime;
switch (runtime->status->state) {
......@@ -1556,7 +1588,8 @@ static int snd_pcm_pre_suspend(struct snd_pcm_substream *substream, int state)
return 0;
}
static int snd_pcm_do_suspend(struct snd_pcm_substream *substream, int state)
static int snd_pcm_do_suspend(struct snd_pcm_substream *substream,
snd_pcm_state_t state)
{
struct snd_pcm_runtime *runtime = substream->runtime;
if (runtime->trigger_master != substream)
......@@ -1567,7 +1600,8 @@ static int snd_pcm_do_suspend(struct snd_pcm_substream *substream, int state)
return 0; /* suspend unconditionally */
}
static void snd_pcm_post_suspend(struct snd_pcm_substream *substream, int state)
static void snd_pcm_post_suspend(struct snd_pcm_substream *substream,
snd_pcm_state_t state)
{
struct snd_pcm_runtime *runtime = substream->runtime;
snd_pcm_trigger_tstamp(substream);
......@@ -1598,7 +1632,8 @@ static int snd_pcm_suspend(struct snd_pcm_substream *substream)
unsigned long flags;
snd_pcm_stream_lock_irqsave(substream, flags);
err = snd_pcm_action(&snd_pcm_action_suspend, substream, 0);
err = snd_pcm_action(&snd_pcm_action_suspend, substream,
ACTION_ARG_IGNORE);
snd_pcm_stream_unlock_irqrestore(substream, flags);
return err;
}
......@@ -1642,9 +1677,10 @@ int snd_pcm_suspend_all(struct snd_pcm *pcm)
}
EXPORT_SYMBOL(snd_pcm_suspend_all);
/* resume */
/* resume callbacks: state argument ignored */
static int snd_pcm_pre_resume(struct snd_pcm_substream *substream, int state)
static int snd_pcm_pre_resume(struct snd_pcm_substream *substream,
snd_pcm_state_t state)
{
struct snd_pcm_runtime *runtime = substream->runtime;
if (!(runtime->info & SNDRV_PCM_INFO_RESUME))
......@@ -1653,7 +1689,8 @@ static int snd_pcm_pre_resume(struct snd_pcm_substream *substream, int state)
return 0;
}
static int snd_pcm_do_resume(struct snd_pcm_substream *substream, int state)
static int snd_pcm_do_resume(struct snd_pcm_substream *substream,
snd_pcm_state_t state)
{
struct snd_pcm_runtime *runtime = substream->runtime;
if (runtime->trigger_master != substream)
......@@ -1666,14 +1703,16 @@ static int snd_pcm_do_resume(struct snd_pcm_substream *substream, int state)
return substream->ops->trigger(substream, SNDRV_PCM_TRIGGER_RESUME);
}
static void snd_pcm_undo_resume(struct snd_pcm_substream *substream, int state)
static void snd_pcm_undo_resume(struct snd_pcm_substream *substream,
snd_pcm_state_t state)
{
if (substream->runtime->trigger_master == substream &&
snd_pcm_running(substream))
substream->ops->trigger(substream, SNDRV_PCM_TRIGGER_SUSPEND);
}
static void snd_pcm_post_resume(struct snd_pcm_substream *substream, int state)
static void snd_pcm_post_resume(struct snd_pcm_substream *substream,
snd_pcm_state_t state)
{
struct snd_pcm_runtime *runtime = substream->runtime;
snd_pcm_trigger_tstamp(substream);
......@@ -1691,7 +1730,8 @@ static const struct action_ops snd_pcm_action_resume = {
static int snd_pcm_resume(struct snd_pcm_substream *substream)
{
return snd_pcm_action_lock_irq(&snd_pcm_action_resume, substream, 0);
return snd_pcm_action_lock_irq(&snd_pcm_action_resume, substream,
ACTION_ARG_IGNORE);
}
#else
......@@ -1732,7 +1772,9 @@ static int snd_pcm_xrun(struct snd_pcm_substream *substream)
/*
* reset ioctl
*/
static int snd_pcm_pre_reset(struct snd_pcm_substream *substream, int state)
/* reset callbacks: state argument ignored */
static int snd_pcm_pre_reset(struct snd_pcm_substream *substream,
snd_pcm_state_t state)
{
struct snd_pcm_runtime *runtime = substream->runtime;
switch (runtime->status->state) {
......@@ -1746,7 +1788,8 @@ static int snd_pcm_pre_reset(struct snd_pcm_substream *substream, int state)
}
}
static int snd_pcm_do_reset(struct snd_pcm_substream *substream, int state)
static int snd_pcm_do_reset(struct snd_pcm_substream *substream,
snd_pcm_state_t state)
{
struct snd_pcm_runtime *runtime = substream->runtime;
int err = snd_pcm_ops_ioctl(substream, SNDRV_PCM_IOCTL1_RESET, NULL);
......@@ -1760,7 +1803,8 @@ static int snd_pcm_do_reset(struct snd_pcm_substream *substream, int state)
return 0;
}
static void snd_pcm_post_reset(struct snd_pcm_substream *substream, int state)
static void snd_pcm_post_reset(struct snd_pcm_substream *substream,
snd_pcm_state_t state)
{
struct snd_pcm_runtime *runtime = substream->runtime;
runtime->control->appl_ptr = runtime->status->hw_ptr;
......@@ -1777,17 +1821,20 @@ static const struct action_ops snd_pcm_action_reset = {
static int snd_pcm_reset(struct snd_pcm_substream *substream)
{
return snd_pcm_action_nonatomic(&snd_pcm_action_reset, substream, 0);
return snd_pcm_action_nonatomic(&snd_pcm_action_reset, substream,
ACTION_ARG_IGNORE);
}
/*
* prepare ioctl
*/
/* we use the second argument for updating f_flags */
/* pass f_flags as state argument */
static int snd_pcm_pre_prepare(struct snd_pcm_substream *substream,
int f_flags)
snd_pcm_state_t state)
{
struct snd_pcm_runtime *runtime = substream->runtime;
int f_flags = (__force int)state;
if (runtime->status->state == SNDRV_PCM_STATE_OPEN ||
runtime->status->state == SNDRV_PCM_STATE_DISCONNECTED)
return -EBADFD;
......@@ -1797,17 +1844,19 @@ static int snd_pcm_pre_prepare(struct snd_pcm_substream *substream,
return 0;
}
static int snd_pcm_do_prepare(struct snd_pcm_substream *substream, int state)
static int snd_pcm_do_prepare(struct snd_pcm_substream *substream,
snd_pcm_state_t state)
{
int err;
snd_pcm_sync_stop(substream);
err = substream->ops->prepare(substream);
if (err < 0)
return err;
return snd_pcm_do_reset(substream, 0);
return snd_pcm_do_reset(substream, state);
}
static void snd_pcm_post_prepare(struct snd_pcm_substream *substream, int state)
static void snd_pcm_post_prepare(struct snd_pcm_substream *substream,
snd_pcm_state_t state)
{
struct snd_pcm_runtime *runtime = substream->runtime;
runtime->control->appl_ptr = runtime->status->hw_ptr;
......@@ -1840,7 +1889,7 @@ static int snd_pcm_prepare(struct snd_pcm_substream *substream,
snd_pcm_stream_lock_irq(substream);
switch (substream->runtime->status->state) {
case SNDRV_PCM_STATE_PAUSED:
snd_pcm_pause(substream, 0);
snd_pcm_pause(substream, false);
/* fallthru */
case SNDRV_PCM_STATE_SUSPENDED:
snd_pcm_stop(substream, SNDRV_PCM_STATE_SETUP);
......@@ -1849,14 +1898,17 @@ static int snd_pcm_prepare(struct snd_pcm_substream *substream,
snd_pcm_stream_unlock_irq(substream);
return snd_pcm_action_nonatomic(&snd_pcm_action_prepare,
substream, f_flags);
substream,
(__force snd_pcm_state_t)f_flags);
}
/*
* drain ioctl
*/
static int snd_pcm_pre_drain_init(struct snd_pcm_substream *substream, int state)
/* drain init callbacks: state argument ignored */
static int snd_pcm_pre_drain_init(struct snd_pcm_substream *substream,
snd_pcm_state_t state)
{
struct snd_pcm_runtime *runtime = substream->runtime;
switch (runtime->status->state) {
......@@ -1869,7 +1921,8 @@ static int snd_pcm_pre_drain_init(struct snd_pcm_substream *substream, int state
return 0;
}
static int snd_pcm_do_drain_init(struct snd_pcm_substream *substream, int state)
static int snd_pcm_do_drain_init(struct snd_pcm_substream *substream,
snd_pcm_state_t state)
{
struct snd_pcm_runtime *runtime = substream->runtime;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
......@@ -1895,7 +1948,9 @@ static int snd_pcm_do_drain_init(struct snd_pcm_substream *substream, int state)
} else {
/* stop running stream */
if (runtime->status->state == SNDRV_PCM_STATE_RUNNING) {
int new_state = snd_pcm_capture_avail(runtime) > 0 ?
snd_pcm_state_t new_state;
new_state = snd_pcm_capture_avail(runtime) > 0 ?
SNDRV_PCM_STATE_DRAINING : SNDRV_PCM_STATE_SETUP;
snd_pcm_do_stop(substream, new_state);
snd_pcm_post_stop(substream, new_state);
......@@ -1911,7 +1966,8 @@ static int snd_pcm_do_drain_init(struct snd_pcm_substream *substream, int state)
return 0;
}
static void snd_pcm_post_drain_init(struct snd_pcm_substream *substream, int state)
static void snd_pcm_post_drain_init(struct snd_pcm_substream *substream,
snd_pcm_state_t state)
{
}
......@@ -1954,10 +2010,11 @@ static int snd_pcm_drain(struct snd_pcm_substream *substream,
snd_pcm_stream_lock_irq(substream);
/* resume pause */
if (runtime->status->state == SNDRV_PCM_STATE_PAUSED)
snd_pcm_pause(substream, 0);
snd_pcm_pause(substream, false);
/* pre-start/stop - all running streams are changed to DRAINING state */
result = snd_pcm_action(&snd_pcm_action_drain_init, substream, 0);
result = snd_pcm_action(&snd_pcm_action_drain_init, substream,
ACTION_ARG_IGNORE);
if (result < 0)
goto unlock;
/* in non-blocking, we don't wait in ioctl but let caller poll */
......@@ -2058,7 +2115,7 @@ static int snd_pcm_drop(struct snd_pcm_substream *substream)
snd_pcm_stream_lock_irq(substream);
/* resume pause */
if (runtime->status->state == SNDRV_PCM_STATE_PAUSED)
snd_pcm_pause(substream, 0);
snd_pcm_pause(substream, false);
snd_pcm_stop(substream, SNDRV_PCM_STATE_SETUP);
/* runtime->control->appl_ptr = runtime->status->hw_ptr; */
......@@ -2900,12 +2957,12 @@ static int snd_pcm_sync_ptr(struct snd_pcm_substream *substream,
}
struct snd_pcm_mmap_status32 {
s32 state;
snd_pcm_state_t state;
s32 pad1;
u32 hw_ptr;
s32 tstamp_sec;
s32 tstamp_nsec;
s32 suspended_state;
snd_pcm_state_t suspended_state;
s32 audio_tstamp_sec;
s32 audio_tstamp_nsec;
} __attribute__((packed));
......@@ -3183,9 +3240,7 @@ static int snd_pcm_common_ioctl(struct file *file,
case SNDRV_PCM_IOCTL_DROP:
return snd_pcm_drop(substream);
case SNDRV_PCM_IOCTL_PAUSE:
return snd_pcm_action_lock_irq(&snd_pcm_action_pause,
substream,
(int)(unsigned long)arg);
return snd_pcm_pause_lock_irq(substream, (unsigned long)arg);
case SNDRV_PCM_IOCTL_WRITEI_FRAMES:
case SNDRV_PCM_IOCTL_READI_FRAMES:
return snd_pcm_xferi_frames_ioctl(substream, arg);
......
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