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ASoC: soc-compress: Serialise compressed ops 

Use the pcm_mutex to serialise the compressed ops.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Tested-by: Jeeja KP <jeeja.kp@intel.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Charles Keepax 2013-01-24 09:44:29 +00:00 committed by Mark Brown
parent 8c3d2aa4cf
commit 15e2e6194a
1 changed files with 34 additions and 3 deletions
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37
sound/soc/soc-compress.c
View File

@ -33,6 +33,8 @@ static int soc_compr_open(struct snd_compr_stream *cstream)
struct snd_soc_dai *codec_dai = rtd->codec_dai;
int ret = 0;
mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
if (platform->driver->compr_ops && platform->driver->compr_ops->open) {
ret = platform->driver->compr_ops->open(cstream);
if (ret < 0) {
@ -61,12 +63,15 @@ static int soc_compr_open(struct snd_compr_stream *cstream)
codec_dai->active++;
rtd->codec->active++;
mutex_unlock(&rtd->pcm_mutex);
return 0;
machine_err:
if (platform->driver->compr_ops && platform->driver->compr_ops->free)
platform->driver->compr_ops->free(cstream);
out:
mutex_unlock(&rtd->pcm_mutex);
return ret;
}
@ -78,6 +83,8 @@ static int soc_compr_free(struct snd_compr_stream *cstream)
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 (cstream->direction == SND_COMPRESS_PLAYBACK) {
cpu_dai->playback_active--;
codec_dai->playback_active--;
@ -124,6 +131,7 @@ static int soc_compr_free(struct snd_compr_stream *cstream)
SND_SOC_DAPM_STREAM_STOP);
}
mutex_unlock(&rtd->pcm_mutex);
return 0;
}
@ -135,10 +143,12 @@ static int soc_compr_trigger(struct snd_compr_stream *cstream, int cmd)
struct snd_soc_dai *codec_dai = rtd->codec_dai;
int ret = 0;
mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
if (platform->driver->compr_ops && platform->driver->compr_ops->trigger) {
ret = platform->driver->compr_ops->trigger(cstream, cmd);
if (ret < 0)
return ret;
goto out;
}
if (cmd == SNDRV_PCM_TRIGGER_START)
@ -146,6 +156,8 @@ static int soc_compr_trigger(struct snd_compr_stream *cstream, int cmd)
else if (cmd == SNDRV_PCM_TRIGGER_STOP)
snd_soc_dai_digital_mute(codec_dai, 1);
out:
mutex_unlock(&rtd->pcm_mutex);
return ret;
}
@ -156,6 +168,8 @@ static int soc_compr_set_params(struct snd_compr_stream *cstream,
struct snd_soc_platform *platform = rtd->platform;
int ret = 0;
mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
/* first we call set_params for the platform driver
* this should configure the soc side
* if the machine has compressed ops then we call that as well
@ -165,18 +179,20 @@ static int soc_compr_set_params(struct snd_compr_stream *cstream,
if (platform->driver->compr_ops && platform->driver->compr_ops->set_params) {
ret = platform->driver->compr_ops->set_params(cstream, params);
if (ret < 0)
return ret;
goto out;
}
if (rtd->dai_link->compr_ops && rtd->dai_link->compr_ops->set_params) {
ret = rtd->dai_link->compr_ops->set_params(cstream);
if (ret < 0)
return ret;
goto out;
}
snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_PLAYBACK,
SND_SOC_DAPM_STREAM_START);
out:
mutex_unlock(&rtd->pcm_mutex);
return ret;
}
@ -187,9 +203,12 @@ static int soc_compr_get_params(struct snd_compr_stream *cstream,
struct snd_soc_platform *platform = rtd->platform;
int ret = 0;
mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
if (platform->driver->compr_ops && platform->driver->compr_ops->get_params)
ret = platform->driver->compr_ops->get_params(cstream, params);
mutex_unlock(&rtd->pcm_mutex);
return ret;
}
@ -200,9 +219,12 @@ static int soc_compr_get_caps(struct snd_compr_stream *cstream,
struct snd_soc_platform *platform = rtd->platform;
int ret = 0;
mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
if (platform->driver->compr_ops && platform->driver->compr_ops->get_caps)
ret = platform->driver->compr_ops->get_caps(cstream, caps);
mutex_unlock(&rtd->pcm_mutex);
return ret;
}
@ -213,9 +235,12 @@ static int soc_compr_get_codec_caps(struct snd_compr_stream *cstream,
struct snd_soc_platform *platform = rtd->platform;
int ret = 0;
mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
if (platform->driver->compr_ops && platform->driver->compr_ops->get_codec_caps)
ret = platform->driver->compr_ops->get_codec_caps(cstream, codec);
mutex_unlock(&rtd->pcm_mutex);
return ret;
}
@ -225,9 +250,12 @@ static int soc_compr_ack(struct snd_compr_stream *cstream, size_t bytes)
struct snd_soc_platform *platform = rtd->platform;
int ret = 0;
mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
if (platform->driver->compr_ops && platform->driver->compr_ops->ack)
ret = platform->driver->compr_ops->ack(cstream, bytes);
mutex_unlock(&rtd->pcm_mutex);
return ret;
}
@ -237,9 +265,12 @@ static int soc_compr_pointer(struct snd_compr_stream *cstream,
struct snd_soc_pcm_runtime *rtd = cstream->private_data;
struct snd_soc_platform *platform = rtd->platform;
mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
if (platform->driver->compr_ops && platform->driver->compr_ops->pointer)
platform->driver->compr_ops->pointer(cstream, tstamp);
mutex_unlock(&rtd->pcm_mutex);
return 0;
}