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ASoC: SOF: audio: Add helper to check if only D0i3 streams are active

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Add a helper function to check if only D0i3-compatible streams
are active.

Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200129220726.31792-7-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Ranjani Sridharan 2020-01-29 16:07:23 -06:00 committed by Mark Brown
parent 61e285caf4
commit de23a838d8
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
2 changed files with 34 additions and 0 deletions
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33
sound/soc/sof/sof-audio.c
View File

@ -11,6 +11,39 @@
#include "sof-audio.h"
#include "ops.h"
/*
* helper to determine if there are only D0i3 compatible
* streams active
*/
bool snd_sof_dsp_only_d0i3_compatible_stream_active(struct snd_sof_dev *sdev)
{
struct snd_pcm_substream *substream;
struct snd_sof_pcm *spcm;
bool d0i3_compatible_active = false;
int dir;
list_for_each_entry(spcm, &sdev->pcm_list, list) {
for (dir = 0; dir <= SNDRV_PCM_STREAM_CAPTURE; dir++) {
substream = spcm->stream[dir].substream;
if (!substream || !substream->runtime)
continue;
/*
* substream->runtime being not NULL indicates that
* that the stream is open. No need to check the
* stream state.
*/
if (!spcm->stream[dir].d0i3_compatible)
return false;
d0i3_compatible_active = true;
}
}
return d0i3_compatible_active;
}
EXPORT_SYMBOL(snd_sof_dsp_only_d0i3_compatible_stream_active);
bool snd_sof_stream_suspend_ignored(struct snd_sof_dev *sdev)
{
struct snd_sof_pcm *spcm;

1
sound/soc/sof/sof-audio.h
View File

@ -203,6 +203,7 @@ int snd_sof_ipc_set_get_comp_data(struct snd_sof_control *scontrol,
int sof_restore_pipelines(struct device *dev);
int sof_set_hw_params_upon_resume(struct device *dev);
bool snd_sof_stream_suspend_ignored(struct snd_sof_dev *sdev);
bool snd_sof_dsp_only_d0i3_compatible_stream_active(struct snd_sof_dev *sdev);
/* Machine driver enumeration */
int sof_machine_register(struct snd_sof_dev *sdev, void *pdata);