From: Ranjani Sridharan <ranjani.sridharan@xxxxxxxxxxxxxxx>
For HDA DAI's the DMA must be paused after the RUN bit is cleared by the
host. So, send the DAI_CONFIG IPC with just the SOF_DAI_CONFIG_FLAGS_PAUSE
flag set to indicate this to the firmware.
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@xxxxxxxxxxxxxxx>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
Signed-off-by: Kai Vehmanen <kai.vehmanen@xxxxxxxxxxxxxxx>
---
sound/soc/sof/intel/hda-dai.c | 42 ++++++++++++++++++++++++++++++-----
1 file changed, 37 insertions(+), 5 deletions(-)
diff --git a/sound/soc/sof/intel/hda-dai.c b/sound/soc/sof/intel/hda-dai.c
index bce5366cf913..8c1d7ddb00e2 100644
--- a/sound/soc/sof/intel/hda-dai.c
+++ b/sound/soc/sof/intel/hda-dai.c
@@ -287,6 +287,36 @@ static int hda_link_pcm_prepare(struct snd_pcm_substream *substream,
dai);
}
+static int hda_link_dai_config_pause_push_ipc(struct snd_soc_dapm_widget *w)
+{
+ struct snd_sof_widget *swidget = w->dobj.private;
+ struct snd_soc_component *component = swidget->scomp;
+ struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component);
+ struct sof_ipc_dai_config *config;
+ struct snd_sof_dai *sof_dai;
+ struct sof_ipc_reply reply;
+ int ret;
+
+ sof_dai = swidget->private;
+
+ if (!sof_dai || !sof_dai->dai_config) {
+ dev_err(sdev->dev, "No config for DAI %s\n", w->name);
+ return -EINVAL;
+ }
+
+ config = &sof_dai->dai_config[sof_dai->current_config];
+
+ /* set PAUSE command flag */
+ config->flags = FIELD_PREP(SOF_DAI_CONFIG_FLAGS_CMD_MASK, SOF_DAI_CONFIG_FLAGS_PAUSE);
+
+ ret = sof_ipc_tx_message(sdev->ipc, config->hdr.cmd, config, config->hdr.size,
+ &reply, sizeof(reply));
+ if (ret < 0)
+ dev_err(sdev->dev, "DAI config for %s failed during pause push\n", w->name);
+
+ return ret;
+}
+
static int hda_link_pcm_trigger(struct snd_pcm_substream *substream,
int cmd, struct snd_soc_dai *dai)
{
@@ -312,6 +342,9 @@ static int hda_link_pcm_trigger(struct snd_pcm_substream *substream,
hda_stream = hstream_to_sof_hda_stream(link_dev);
dev_dbg(dai->dev, "In %s cmd=%d\n", __func__, cmd);
+
+ w = snd_soc_dai_get_widget(dai, substream->stream);
+
switch (cmd) {
case SNDRV_PCM_TRIGGER_RESUME:
/* set up hw_params */
@@ -331,11 +364,6 @@ static int hda_link_pcm_trigger(struct snd_pcm_substream *substream,
case SNDRV_PCM_TRIGGER_STOP:
snd_hdac_ext_link_stream_clear(link_dev);
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- w = dai->playback_widget;
- else
- w = dai->capture_widget;
-
/*
* free DAI widget during stop/suspend to keep widget use_count's balanced.
*/
@@ -352,6 +380,10 @@ static int hda_link_pcm_trigger(struct snd_pcm_substream *substream,
break;
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
snd_hdac_ext_link_stream_clear(link_dev);
+
+ ret = hda_link_dai_config_pause_push_ipc(w);
+ if (ret < 0)
+ return ret;
break;
default:
return -EINVAL;
--
2.33.0
