From: Rander Wang <rander.wang@xxxxxxxxxxxxxxx>
Sdw stream is enabled and disabled in trigger function.
Signed-off-by: Rander Wang <rander.wang@xxxxxxxxxxxxxxx>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
---
drivers/soundwire/intel.c | 39 +++++++++++++++++++++++++++++++++++++++
1 file changed, 39 insertions(+)
diff --git a/drivers/soundwire/intel.c b/drivers/soundwire/intel.c
index c50aebda7f4d..862dde9a9b86 100644
--- a/drivers/soundwire/intel.c
+++ b/drivers/soundwire/intel.c
@@ -712,6 +712,43 @@ static int intel_prepare(struct snd_pcm_substream *substream,
return sdw_prepare_stream(dma->stream);
}
+static int intel_trigger(struct snd_pcm_substream *substream, int cmd,
+ struct snd_soc_dai *dai)
+{
+ struct sdw_cdns_dma_data *dma;
+ int ret;
+
+ dma = snd_soc_dai_get_dma_data(dai, substream);
+ if (!dma) {
+ dev_err(dai->dev, "failed to get dma data in %s", __func__);
+ return -EIO;
+ }
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ case SNDRV_PCM_TRIGGER_RESUME:
+ ret = sdw_enable_stream(dma->stream);
+ break;
+
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ case SNDRV_PCM_TRIGGER_STOP:
+ ret = sdw_disable_stream(dma->stream);
+ break;
+
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+ if (ret)
+ dev_err(dai->dev,
+ "%s trigger %d failed: %d",
+ __func__, cmd, ret);
+ return ret;
+}
+
static int
intel_hw_free(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
{
@@ -759,6 +796,7 @@ static int intel_pdm_set_sdw_stream(struct snd_soc_dai *dai,
static const struct snd_soc_dai_ops intel_pcm_dai_ops = {
.hw_params = intel_hw_params,
.prepare = intel_prepare,
+ .trigger = intel_trigger,
.hw_free = intel_hw_free,
.shutdown = intel_shutdown,
.set_sdw_stream = intel_pcm_set_sdw_stream,
@@ -767,6 +805,7 @@ static const struct snd_soc_dai_ops intel_pcm_dai_ops = {
static const struct snd_soc_dai_ops intel_pdm_dai_ops = {
.hw_params = intel_hw_params,
.prepare = intel_prepare,
+ .trigger = intel_trigger,
.hw_free = intel_hw_free,
.shutdown = intel_shutdown,
.set_sdw_stream = intel_pdm_set_sdw_stream,
--
2.20.1
_______________________________________________
Alsa-devel mailing list
Alsa-devel@xxxxxxxxxxxxxxxx
https://mailman.alsa-project.org/mailman/listinfo/alsa-devel
