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ALSA: usb-audio: simplify snd_usb_endpoint_start/stop arguments 

Reduce the redundant arguments for snd_usb_endpoint_start() and
snd_usb_endpoint_stop().  Also replaced from int to bool.

No functional changes by this commit.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2012-11-20 18:32:06 +01:00
parent 20d32022a8
commit a9bb36261e
3 changed files with 21 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
sound/usb/endpoint.c
View File

@ -515,7 +515,7 @@ void snd_usb_endpoint_sync_pending_stop(struct snd_usb_endpoint *ep)
/*
* unlink active urbs.
*/
static int deactivate_urbs(struct snd_usb_endpoint *ep, int force, int can_sleep)
static int deactivate_urbs(struct snd_usb_endpoint *ep, bool force, bool can_sleep)
{
unsigned int i;
int async;
@ -561,7 +561,7 @@ static void release_urbs(struct snd_usb_endpoint *ep, int force)
ep->prepare_data_urb = NULL;
/* stop urbs */
deactivate_urbs(ep, force, 1);
deactivate_urbs(ep, force, true);
wait_clear_urbs(ep);
for (i = 0; i < ep->nurbs; i++)
@ -824,7 +824,7 @@ int snd_usb_endpoint_set_params(struct snd_usb_endpoint *ep,
*
* Returns an error if the URB submission failed, 0 in all other cases.
*/
int snd_usb_endpoint_start(struct snd_usb_endpoint *ep, int can_sleep)
int snd_usb_endpoint_start(struct snd_usb_endpoint *ep, bool can_sleep)
{
int err;
unsigned int i;
@ -837,7 +837,7 @@ int snd_usb_endpoint_start(struct snd_usb_endpoint *ep, int can_sleep)
return 0;
/* just to be sure */
deactivate_urbs(ep, 0, can_sleep);
deactivate_urbs(ep, false, can_sleep);
if (can_sleep)
wait_clear_urbs(ep);
@ -891,7 +891,7 @@ int snd_usb_endpoint_start(struct snd_usb_endpoint *ep, int can_sleep)
__error:
clear_bit(EP_FLAG_RUNNING, &ep->flags);
ep->use_count--;
deactivate_urbs(ep, 0, 0);
deactivate_urbs(ep, false, false);
return -EPIPE;
}
@ -906,8 +906,7 @@ __error:
*
* Must be balanced to calls of snd_usb_endpoint_start().
*/
void snd_usb_endpoint_stop(struct snd_usb_endpoint *ep,
int force, int can_sleep, int wait)
void snd_usb_endpoint_stop(struct snd_usb_endpoint *ep, bool wait)
{
if (!ep)
return;
@ -916,7 +915,7 @@ void snd_usb_endpoint_stop(struct snd_usb_endpoint *ep,
return;
if (--ep->use_count == 0) {
deactivate_urbs(ep, force, can_sleep);
deactivate_urbs(ep, false, wait);
ep->data_subs = NULL;
ep->sync_slave = NULL;
ep->retire_data_urb = NULL;
@ -947,7 +946,7 @@ int snd_usb_endpoint_deactivate(struct snd_usb_endpoint *ep)
if (!ep)
return -EINVAL;
deactivate_urbs(ep, 1, 1);
deactivate_urbs(ep, true, true);
wait_clear_urbs(ep);
if (ep->use_count != 0)

5
sound/usb/endpoint.h
View File

@ -16,9 +16,8 @@ int snd_usb_endpoint_set_params(struct snd_usb_endpoint *ep,
struct audioformat *fmt,
struct snd_usb_endpoint *sync_ep);
int snd_usb_endpoint_start(struct snd_usb_endpoint *ep, int can_sleep);
void snd_usb_endpoint_stop(struct snd_usb_endpoint *ep,
int force, int can_sleep, int wait);
int snd_usb_endpoint_start(struct snd_usb_endpoint *ep, bool can_sleep);
void snd_usb_endpoint_stop(struct snd_usb_endpoint *ep, bool wait);
void snd_usb_endpoint_sync_pending_stop(struct snd_usb_endpoint *ep);
int snd_usb_endpoint_activate(struct snd_usb_endpoint *ep);
int snd_usb_endpoint_deactivate(struct snd_usb_endpoint *ep);

25
sound/usb/pcm.c
View File

@ -211,7 +211,7 @@ int snd_usb_init_pitch(struct snd_usb_audio *chip, int iface,
}
}
static int start_endpoints(struct snd_usb_substream *subs, int can_sleep)
static int start_endpoints(struct snd_usb_substream *subs, bool can_sleep)
{
int err;
@ -263,16 +263,13 @@ static int start_endpoints(struct snd_usb_substream *subs, int can_sleep)
return 0;
}
static void stop_endpoints(struct snd_usb_substream *subs,
int force, int can_sleep, int wait)
static void stop_endpoints(struct snd_usb_substream *subs, bool wait)
{
if (test_and_clear_bit(SUBSTREAM_FLAG_SYNC_EP_STARTED, &subs->flags))
snd_usb_endpoint_stop(subs->sync_endpoint,
force, can_sleep, wait);
snd_usb_endpoint_stop(subs->sync_endpoint, wait);
if (test_and_clear_bit(SUBSTREAM_FLAG_DATA_EP_STARTED, &subs->flags))
snd_usb_endpoint_stop(subs->data_endpoint,
force, can_sleep, wait);
snd_usb_endpoint_stop(subs->data_endpoint, wait);
}
static int deactivate_endpoints(struct snd_usb_substream *subs)
@ -444,7 +441,7 @@ static int configure_endpoint(struct snd_usb_substream *subs)
int ret;
/* format changed */
stop_endpoints(subs, 0, 0, 0);
stop_endpoints(subs, false);
ret = snd_usb_endpoint_set_params(subs->data_endpoint,
subs->pcm_format,
subs->channels,
@ -530,7 +527,7 @@ static int snd_usb_hw_free(struct snd_pcm_substream *substream)
subs->period_bytes = 0;
down_read(&subs->stream->chip->shutdown_rwsem);
if (!subs->stream->chip->shutdown) {
stop_endpoints(subs, 0, 1, 1);
stop_endpoints(subs, true);
deactivate_endpoints(subs);
}
up_read(&subs->stream->chip->shutdown_rwsem);
@ -605,7 +602,7 @@ static int snd_usb_pcm_prepare(struct snd_pcm_substream *substream)
/* for playback, submit the URBs now; otherwise, the first hwptr_done
* updates for all URBs would happen at the same time when starting */
if (subs->direction == SNDRV_PCM_STREAM_PLAYBACK)
ret = start_endpoints(subs, 1);
ret = start_endpoints(subs, true);
unlock:
up_read(&subs->stream->chip->shutdown_rwsem);
@ -1010,7 +1007,7 @@ static int snd_usb_pcm_close(struct snd_pcm_substream *substream, int direction)
struct snd_usb_stream *as = snd_pcm_substream_chip(substream);
struct snd_usb_substream *subs = &as->substream[direction];
stop_endpoints(subs, 0, 0, 0);
stop_endpoints(subs, false);
if (!as->chip->shutdown && subs->interface >= 0) {
usb_set_interface(subs->dev, subs->interface, 0);
@ -1245,7 +1242,7 @@ static int snd_usb_substream_playback_trigger(struct snd_pcm_substream *substrea
subs->running = 1;
return 0;
case SNDRV_PCM_TRIGGER_STOP:
stop_endpoints(subs, 0, 0, 0);
stop_endpoints(subs, false);
subs->running = 0;
return 0;
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
@ -1266,7 +1263,7 @@ static int snd_usb_substream_capture_trigger(struct snd_pcm_substream *substream
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
err = start_endpoints(subs, 0);
err = start_endpoints(subs, false);
if (err < 0)
return err;
@ -1274,7 +1271,7 @@ static int snd_usb_substream_capture_trigger(struct snd_pcm_substream *substream
subs->running = 1;
return 0;
case SNDRV_PCM_TRIGGER_STOP:
stop_endpoints(subs, 0, 0, 0);
stop_endpoints(subs, false);
subs->running = 0;
return 0;
case SNDRV_PCM_TRIGGER_PAUSE_PUSH: