* [PATCH v2] ASoC: dapm - Add DAPM stream completion event.
@ 2011-07-25 10:15 Liam Girdwood
2011-07-25 21:08 ` Mark Brown
0 siblings, 1 reply; 2+ messages in thread
From: Liam Girdwood @ 2011-07-25 10:15 UTC (permalink / raw)
To: Mark Brown; +Cc: alsa-devel, Liam Girdwood
In preparation for Dynamic PCM (AKA DSP) support.
This adds a callback function to be called at the completion of a DAPM stream
event.
This can be used by DSP components to perform calculations based on DAPM graphs
after completion of stream events.
Signed-off-by: Liam Girdwood <lrg@ti.com>
---
include/sound/soc-dapm.h | 2 ++
include/sound/soc.h | 6 ++++++
sound/soc/soc-core.c | 2 ++
sound/soc/soc-dapm.c | 4 ++++
4 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h
index e09505c..5833f01 100644
--- a/include/sound/soc-dapm.h
+++ b/include/sound/soc-dapm.h
@@ -518,6 +518,8 @@ struct snd_soc_dapm_context {
enum snd_soc_bias_level target_bias_level;
struct list_head list;
+ int (*stream_event)(struct snd_soc_dapm_context *dapm, int event);
+
#ifdef CONFIG_DEBUG_FS
struct dentry *debugfs_dapm;
#endif
diff --git a/include/sound/soc.h b/include/sound/soc.h
index aa19f5a..64a9dd5 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -634,6 +634,9 @@ struct snd_soc_codec_driver {
void (*seq_notifier)(struct snd_soc_dapm_context *,
enum snd_soc_dapm_type, int);
+ /* codec stream completion event */
+ int (*stream_event)(struct snd_soc_dapm_context *dapm, int event);
+
/* probe ordering - for components with runtime dependencies */
int probe_order;
int remove_order;
@@ -669,6 +672,9 @@ struct snd_soc_platform_driver {
/* platform stream ops */
struct snd_pcm_ops *ops;
+ /* platform stream completion event */
+ int (*stream_event)(struct snd_soc_dapm_context *dapm, int event);
+
/* probe ordering - for components with runtime dependencies */
int probe_order;
int remove_order;
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index e44267f..159f144 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -3140,6 +3140,7 @@ int snd_soc_register_platform(struct device *dev,
platform->driver = platform_drv;
platform->dapm.dev = dev;
platform->dapm.platform = platform;
+ platform->dapm.stream_event = platform_drv->stream_event;
mutex_lock(&client_mutex);
list_add(&platform->list, &platform_list);
@@ -3252,6 +3253,7 @@ int snd_soc_register_codec(struct device *dev,
codec->dapm.dev = dev;
codec->dapm.codec = codec;
codec->dapm.seq_notifier = codec_drv->seq_notifier;
+ codec->dapm.stream_event = codec_drv->stream_event;
codec->dev = dev;
codec->driver = codec_drv;
codec->num_dai = num_dai;
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index fbfcda0..80f97b2 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -2574,6 +2574,10 @@ static void soc_dapm_stream_event(struct snd_soc_dapm_context *dapm,
}
dapm_power_widgets(dapm, event);
+
+ /* do we need to notify any clients that DAPM stream is complete */
+ if (dapm->stream_event)
+ dapm->stream_event(dapm, event);
}
/**
--
1.7.4.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH v2] ASoC: dapm - Add DAPM stream completion event.
2011-07-25 10:15 [PATCH v2] ASoC: dapm - Add DAPM stream completion event Liam Girdwood
@ 2011-07-25 21:08 ` Mark Brown
0 siblings, 0 replies; 2+ messages in thread
From: Mark Brown @ 2011-07-25 21:08 UTC (permalink / raw)
To: Liam Girdwood; +Cc: alsa-devel
On Mon, Jul 25, 2011 at 11:15:15AM +0100, Liam Girdwood wrote:
> In preparation for Dynamic PCM (AKA DSP) support.
>
> This adds a callback function to be called at the completion of a DAPM stream
> event.
>
> This can be used by DSP components to perform calculations based on DAPM graphs
> after completion of stream events.
Applied, thanks.
^ permalink raw reply [flat|nested] 2+ messages in thread
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