@@ -346,6 +346,16 @@ static int sof_pcm_trigger(struct snd_soc_component *component,
stream.hdr.cmd |= SOF_IPC_STREAM_TRIG_RELEASE;
break;
case SNDRV_PCM_TRIGGER_RESUME:
+ if (spcm->stream[substream->stream].suspend_ignored) {
+ /*
+ * this case will be triggered when INFO_RESUME is
+ * supported, no need to resume streams that remained
+ * enabled in D0ix.
+ */
+ spcm->stream[substream->stream].suspend_ignored = false;
+ return 0;
+ }
+
/* set up hw_params */
ret = sof_pcm_prepare(component, substream);
if (ret < 0) {
@@ -356,9 +366,30 @@ static int sof_pcm_trigger(struct snd_soc_component *component,
/* fallthrough */
case SNDRV_PCM_TRIGGER_START:
+ if (spcm->stream[substream->stream].suspend_ignored) {
+ /*
+ * This case will be triggered when INFO_RESUME is
+ * not supported, no need to re-start streams that
+ * remained enabled in D0ix.
+ */
+ spcm->stream[substream->stream].suspend_ignored = false;
+ return 0;
+ }
stream.hdr.cmd |= SOF_IPC_STREAM_TRIG_START;
break;
case SNDRV_PCM_TRIGGER_SUSPEND:
+ if (sdev->s0_suspend &&
+ spcm->stream[substream->stream].d0i3_compatible) {
+ /*
+ * trap the event, not sending trigger stop to
+ * prevent the FW pipelines from being stopped,
+ * and mark the flag to ignore the upcoming DAPM
+ * PM events.
+ */
+ spcm->stream[substream->stream].suspend_ignored = true;
+ return 0;
+ }
+ /* fallthrough */
case SNDRV_PCM_TRIGGER_STOP:
stream.hdr.cmd |= SOF_IPC_STREAM_TRIG_STOP;
ipc_first = true;
@@ -135,7 +135,9 @@ static int sof_keyword_dapm_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *k, int event)
{
struct snd_sof_widget *swidget = w->dobj.private;
+ int stream = SNDRV_PCM_STREAM_CAPTURE;
struct snd_sof_dev *sdev;
+ struct snd_sof_pcm *spcm;
int ret = 0;
if (!swidget)
@@ -146,11 +148,19 @@ static int sof_keyword_dapm_event(struct snd_soc_dapm_widget *w,
dev_dbg(sdev->dev, "received event %d for widget %s\n",
event, w->name);
+ /* get runtime PCM params using widget's stream name */
+ spcm = snd_sof_find_spcm_name(sdev, swidget->widget->sname);
+
/* process events */
switch (event) {
case SND_SOC_DAPM_PRE_PMU:
+ if (spcm->stream[stream].suspend_ignored) {
+ dev_dbg(sdev->dev, "PRE_PMU event ignored, KWD pipeline is already RUNNING\n");
+ return 0;
+ }
+
/* set pcm params */
- ret = ipc_pcm_params(swidget, SOF_IPC_STREAM_CAPTURE);
+ ret = ipc_pcm_params(swidget, stream);
if (ret < 0) {
dev_err(sdev->dev,
"error: failed to set pcm params for widget %s\n",
@@ -166,6 +176,11 @@ static int sof_keyword_dapm_event(struct snd_soc_dapm_widget *w,
swidget->widget->name);
break;
case SND_SOC_DAPM_POST_PMD:
+ if (spcm->stream[stream].suspend_ignored) {
+ dev_dbg(sdev->dev, "POST_PMD even ignored, KWD pipeline will remain RUNNING\n");
+ return 0;
+ }
+
/* stop trigger */
ret = ipc_trigger(swidget, SOF_IPC_STREAM_TRIG_STOP);
if (ret < 0)