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Commit 64a648c2 authored by Liam Girdwood's avatar Liam Girdwood Committed by Mark Brown
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ASoC: dapm - Add DAPM stream completion event. 



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: default avatarLiam Girdwood <lrg@ti.com>
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent a0c27ab2

include/sound/soc-dapm.h

+2 −0
Original line number Diff line number Diff line
@@ -524,6 +524,8 @@ 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

include/sound/soc.h

+6 −0
Original line number Diff line number Diff line
@@ -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;

sound/soc/soc-core.c

+2 −0
Original line number Diff line number Diff line
@@ -3141,6 +3141,7 @@ 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);
@@ -3253,6 +3254,7 @@ 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;

sound/soc/soc-dapm.c

+4 −0
Original line number Diff line number Diff line
@@ -2604,6 +2604,10 @@ 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);

}



/**