From: Ranjani Sridharan <ranjani.sridharan@xxxxxxxxxxxxxxx>
Add a helper function to check if only D0i3-compatible streams
are active.
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@xxxxxxxxxxxxxxx>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
---
sound/soc/sof/sof-audio.c | 33 +++++++++++++++++++++++++++++++++
sound/soc/sof/sof-audio.h | 1 +
2 files changed, 34 insertions(+)
diff --git a/sound/soc/sof/sof-audio.c b/sound/soc/sof/sof-audio.c
index d16571ca129c..75f2ef2bd94b 100644
--- a/sound/soc/sof/sof-audio.c
+++ b/sound/soc/sof/sof-audio.c
@@ -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;
diff --git a/sound/soc/sof/sof-audio.h b/sound/soc/sof/sof-audio.h
index a2702afbd9a1..eacd10e4da11 100644
--- a/sound/soc/sof/sof-audio.h
+++ b/sound/soc/sof/sof-audio.h
@@ -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);
--
2.20.1
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