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ASoC: Add helper functions for PCM runtime 'active' management

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We have the same code that increments and decrements the active field of the
various PCM runtime components (all with the same bugs). Factor this out into
common helper functions.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Lars-Peter Clausen 2014-03-05 13:17:43 +01:00 committed by Mark Brown
parent 208a1589db
commit 24894b7646
3 changed files with 78 additions and 72 deletions
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2
include/sound/soc.h
View File

@ -414,6 +414,8 @@ struct snd_soc_pcm_runtime *snd_soc_get_pcm_runtime(struct snd_soc_card *card,
const char *dai_link);
bool snd_soc_runtime_ignore_pmdown_time(struct snd_soc_pcm_runtime *rtd);
void snd_soc_runtime_activate(struct snd_soc_pcm_runtime *rtd, int stream);
void snd_soc_runtime_deactivate(struct snd_soc_pcm_runtime *rtd, int stream);
/* Utility functions to get clock rates from various things */
int snd_soc_calc_frame_size(int sample_size, int channels, int tdm_slots);

62
sound/soc/soc-compress.c
View File

@ -30,8 +30,6 @@ static int soc_compr_open(struct snd_compr_stream *cstream)
{
struct snd_soc_pcm_runtime *rtd = cstream->private_data;
struct snd_soc_platform *platform = rtd->platform;
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
struct snd_soc_dai *codec_dai = rtd->codec_dai;
int ret = 0;
mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
@ -52,17 +50,7 @@ static int soc_compr_open(struct snd_compr_stream *cstream)
}
}
if (cstream->direction == SND_COMPRESS_PLAYBACK) {
cpu_dai->playback_active++;
codec_dai->playback_active++;
} else {
cpu_dai->capture_active++;
codec_dai->capture_active++;
}
cpu_dai->active++;
codec_dai->active++;
rtd->codec->active++;
snd_soc_runtime_activate(rtd, cstream->direction);
mutex_unlock(&rtd->pcm_mutex);
@ -81,8 +69,6 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream)
struct snd_soc_pcm_runtime *fe = cstream->private_data;
struct snd_pcm_substream *fe_substream = fe->pcm->streams[0].substream;
struct snd_soc_platform *platform = fe->platform;
struct snd_soc_dai *cpu_dai = fe->cpu_dai;
struct snd_soc_dai *codec_dai = fe->codec_dai;
struct snd_soc_dpcm *dpcm;
struct snd_soc_dapm_widget_list *list;
int stream;
@ -140,17 +126,7 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream)
fe->dpcm[stream].state = SND_SOC_DPCM_STATE_OPEN;
fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO;
if (cstream->direction == SND_COMPRESS_PLAYBACK) {
cpu_dai->playback_active++;
codec_dai->playback_active++;
} else {
cpu_dai->capture_active++;
codec_dai->capture_active++;
}
cpu_dai->active++;
codec_dai->active++;
fe->codec->active++;
snd_soc_runtime_activate(fe, stream);
mutex_unlock(&fe->card->mutex);
@ -202,24 +178,19 @@ static int soc_compr_free(struct snd_compr_stream *cstream)
struct snd_soc_platform *platform = rtd->platform;
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
struct snd_soc_dai *codec_dai = rtd->codec_dai;
struct snd_soc_codec *codec = rtd->codec;
int stream;
mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
if (cstream->direction == SND_COMPRESS_PLAYBACK) {
cpu_dai->playback_active--;
codec_dai->playback_active--;
} else {
cpu_dai->capture_active--;
codec_dai->capture_active--;
}
if (cstream->direction == SND_COMPRESS_PLAYBACK)
stream = SNDRV_PCM_STREAM_PLAYBACK;
else
stream = SNDRV_PCM_STREAM_CAPTURE;
snd_soc_runtime_deactivate(rtd, stream);
snd_soc_dai_digital_mute(codec_dai, 1, cstream->direction);
cpu_dai->active--;
codec_dai->active--;
codec->active--;
if (!cpu_dai->active)
cpu_dai->rate = 0;
@ -260,26 +231,17 @@ static int soc_compr_free_fe(struct snd_compr_stream *cstream)
{
struct snd_soc_pcm_runtime *fe = cstream->private_data;
struct snd_soc_platform *platform = fe->platform;
struct snd_soc_dai *cpu_dai = fe->cpu_dai;
struct snd_soc_dai *codec_dai = fe->codec_dai;
struct snd_soc_dpcm *dpcm;
int stream, ret;
mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME);
if (cstream->direction == SND_COMPRESS_PLAYBACK) {
if (cstream->direction == SND_COMPRESS_PLAYBACK)
stream = SNDRV_PCM_STREAM_PLAYBACK;
cpu_dai->playback_active--;
codec_dai->playback_active--;
} else {
else
stream = SNDRV_PCM_STREAM_CAPTURE;
cpu_dai->capture_active--;
codec_dai->capture_active--;
}
cpu_dai->active--;
codec_dai->active--;
fe->codec->active--;
snd_soc_runtime_deactivate(fe, stream);
fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE;

86
sound/soc/soc-pcm.c
View File

@ -34,6 +34,66 @@
#define DPCM_MAX_BE_USERS 8
/**
* snd_soc_runtime_activate() - Increment active count for PCM runtime components
* @rtd: ASoC PCM runtime that is activated
* @stream: Direction of the PCM stream
*
* Increments the active count for all the DAIs and components attached to a PCM
* runtime. Should typically be called when a stream is opened.
*
* Must be called with the rtd->pcm_mutex being held
*/
void snd_soc_runtime_activate(struct snd_soc_pcm_runtime *rtd, int stream)
{
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
struct snd_soc_dai *codec_dai = rtd->codec_dai;
lockdep_assert_held(&rtd->pcm_mutex);
if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
cpu_dai->playback_active++;
codec_dai->playback_active++;
} else {
cpu_dai->capture_active++;
codec_dai->capture_active++;
}
cpu_dai->active++;
codec_dai->active++;
rtd->codec->active++;
}
/**
* snd_soc_runtime_deactivate() - Decrement active count for PCM runtime components
* @rtd: ASoC PCM runtime that is deactivated
* @stream: Direction of the PCM stream
*
* Decrements the active count for all the DAIs and components attached to a PCM
* runtime. Should typically be called when a stream is closed.
*
* Must be called with the rtd->pcm_mutex being held
*/
void snd_soc_runtime_deactivate(struct snd_soc_pcm_runtime *rtd, int stream)
{
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
struct snd_soc_dai *codec_dai = rtd->codec_dai;
lockdep_assert_held(&rtd->pcm_mutex);
if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
cpu_dai->playback_active--;
codec_dai->playback_active--;
} else {
cpu_dai->capture_active--;
codec_dai->capture_active--;
}
cpu_dai->active--;
codec_dai->active--;
rtd->codec->active--;
}
/**
* snd_soc_runtime_ignore_pmdown_time() - Check whether to ignore the power down delay
* @rtd: The ASoC PCM runtime that should be checked.
@ -402,16 +462,9 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
runtime->hw.rate_max);
dynamic:
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
cpu_dai->playback_active++;
codec_dai->playback_active++;
} else {
cpu_dai->capture_active++;
codec_dai->capture_active++;
}
cpu_dai->active++;
codec_dai->active++;
rtd->codec->active++;
snd_soc_runtime_activate(rtd, substream->stream);
mutex_unlock(&rtd->pcm_mutex);
return 0;
@ -483,21 +536,10 @@ static int soc_pcm_close(struct snd_pcm_substream *substream)
struct snd_soc_platform *platform = rtd->platform;
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
struct snd_soc_dai *codec_dai = rtd->codec_dai;
struct snd_soc_codec *codec = rtd->codec;
mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
cpu_dai->playback_active--;
codec_dai->playback_active--;
} else {
cpu_dai->capture_active--;
codec_dai->capture_active--;
}
cpu_dai->active--;
codec_dai->active--;
codec->active--;
snd_soc_runtime_deactivate(rtd, substream->stream);
/* clear the corresponding DAIs rate when inactive */
if (!cpu_dai->active)