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authorLiam Girdwood <lg@opensource.wolfsonmicro.com>2008-01-10 14:36:20 +0100
committerJaroslav Kysela <perex@perex.cz>2008-01-31 17:29:50 +0100
commit0b4d221b8d56deefca4984d01b3a010107ae1f72 (patch)
treefb4d9923416fedeee04632eac5a8ee760bf37f0e
parent7570f29a545c7fdf29e913860320e0c09e60e45b (diff)
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[ALSA] soc - Add device level DAPM event
Added a device level dapm event so that both the machine and codec are informed when dapm events occur. Signed-off-by: Liam Girdwood <lg@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
-rw-r--r--include/sound/soc-dapm.h1
-rw-r--r--include/sound/soc.h3
-rw-r--r--sound/soc/soc-core.c23
-rw-r--r--sound/soc/soc-dapm.c23
4 files changed, 38 insertions, 12 deletions
diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h
index b9d5864..4158cba 100644
--- a/include/sound/soc-dapm.h
+++ b/include/sound/soc-dapm.h
@@ -199,6 +199,7 @@ void snd_soc_dapm_free(struct snd_soc_device *socdev);
/* dapm events */
int snd_soc_dapm_stream_event(struct snd_soc_codec *codec, char *stream,
int event);
+int snd_soc_dapm_device_event(struct snd_soc_device *socdev, int event);
/* dapm sys fs - used by the core */
int snd_soc_dapm_sys_add(struct device *dev);
diff --git a/include/sound/soc.h b/include/sound/soc.h
index c22c656..add5f94 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -425,6 +425,9 @@ struct snd_soc_machine {
int (*resume_pre)(struct platform_device *pdev);
int (*resume_post)(struct platform_device *pdev);
+ /* callbacks */
+ int (*dapm_event)(struct snd_soc_machine *, int event);
+
/* CPU <--> Codec DAI links */
struct snd_soc_dai_link *dai_link;
int num_links;
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 9407525..bd656db 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -288,15 +288,16 @@ static void close_delayed_work(struct work_struct *work)
if (codec_dai->pop_wait == 1) {
codec_dai->pop_wait = 0;
- snd_soc_dapm_stream_event(codec, codec_dai->playback.stream_name,
+ snd_soc_dapm_stream_event(codec,
+ codec_dai->playback.stream_name,
SND_SOC_DAPM_STREAM_STOP);
/* power down the codec power domain if no longer active */
if (codec->active == 0) {
dbg("pop wq D3 %s %s\n", codec->name,
codec_dai->playback.stream_name);
- if (codec->dapm_event)
- codec->dapm_event(codec, SNDRV_CTL_POWER_D3hot);
+ snd_soc_dapm_device_event(socdev,
+ SNDRV_CTL_POWER_D3hot);
}
}
}
@@ -352,12 +353,12 @@ static int soc_codec_close(struct snd_pcm_substream *substream)
} else {
/* capture streams can be powered down now */
snd_soc_dapm_stream_event(codec,
- codec_dai->capture.stream_name, SND_SOC_DAPM_STREAM_STOP);
+ codec_dai->capture.stream_name,
+ SND_SOC_DAPM_STREAM_STOP);
- if (codec->active == 0 && codec_dai->pop_wait == 0){
- if (codec->dapm_event)
- codec->dapm_event(codec, SNDRV_CTL_POWER_D3hot);
- }
+ if (codec->active == 0 && codec_dai->pop_wait == 0)
+ snd_soc_dapm_device_event(socdev,
+ SNDRV_CTL_POWER_D3hot);
}
mutex_unlock(&pcm_mutex);
@@ -432,8 +433,7 @@ static int soc_pcm_prepare(struct snd_pcm_substream *substream)
/* no delayed work - do we need to power up codec */
if (codec->dapm_state != SNDRV_CTL_POWER_D0) {
- if (codec->dapm_event)
- codec->dapm_event(codec, SNDRV_CTL_POWER_D1);
+ snd_soc_dapm_device_event(socdev, SNDRV_CTL_POWER_D1);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
snd_soc_dapm_stream_event(codec,
@@ -444,8 +444,7 @@ static int soc_pcm_prepare(struct snd_pcm_substream *substream)
codec_dai->capture.stream_name,
SND_SOC_DAPM_STREAM_START);
- if (codec->dapm_event)
- codec->dapm_event(codec, SNDRV_CTL_POWER_D0);
+ snd_soc_dapm_device_event(socdev, SNDRV_CTL_POWER_D0);
if (codec_dai->dai_ops.digital_mute)
codec_dai->dai_ops.digital_mute(codec_dai, 0);
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 3b8f94a..16ebb60 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -1279,6 +1279,29 @@ int snd_soc_dapm_stream_event(struct snd_soc_codec *codec,
EXPORT_SYMBOL_GPL(snd_soc_dapm_stream_event);
/**
+ * snd_soc_dapm_device_event - send a device event to the dapm core
+ * @socdev: audio device
+ * @event: device event
+ *
+ * Sends a device event to the dapm core. The core then makes any
+ * necessary machine or codec power changes..
+ *
+ * Returns 0 for success else error.
+ */
+int snd_soc_dapm_device_event(struct snd_soc_device *socdev, int event)
+{
+ struct snd_soc_codec *codec = socdev->codec;
+ struct snd_soc_machine *machine = socdev->machine;
+
+ if (machine->dapm_event)
+ machine->dapm_event(machine, event);
+ if (codec->dapm_event)
+ codec->dapm_event(codec, event);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_dapm_device_event);
+
+/**
* snd_soc_dapm_set_endpoint - set audio endpoint status
* @codec: audio codec
* @endpoint: audio signal endpoint (or start point)