[alsa-devel] [PATCH 18/19] ASoC: Intel: mfld-pcm: add the fe & be dai ops

[Vinod Koul]

Now that the DSP toplogy is added, add the FE and BE dai ops for controls DSP as
well mute/unmute of FE thru ASoC

Signed-off-by: Vinod Koul <vinod.koul at intel.com>
---
 sound/soc/intel/sst-mfld-platform-pcm.c |   38 +++++++++++++++++++++++++++++++
 1 files changed, 38 insertions(+), 0 deletions(-)

diff --git a/sound/soc/intel/sst-mfld-platform-pcm.c b/sound/soc/intel/sst-mfld-platform-pcm.c
index 346f972..007bfcd 100644
--- a/sound/soc/intel/sst-mfld-platform-pcm.c
+++ b/sound/soc/intel/sst-mfld-platform-pcm.c
@@ -101,6 +101,11 @@ static struct sst_dev_stream_map dpcm_strm_map[] = {
 	{MERR_DPCM_AUDIO, 0, SNDRV_PCM_STREAM_CAPTURE, PIPE_PCM1_OUT, SST_TASK_ID_MEDIA, 0},
 };
 
+static int sst_media_digital_mute(struct snd_soc_dai *dai, int mute, int stream)
+{
+
+	return sst_send_pipe_gains(dai, stream, mute);
+}
 
 /* helper functions */
 void sst_set_stream_status(struct sst_runtime_stream *stream,
@@ -421,12 +426,41 @@ static int sst_media_hw_free(struct snd_pcm_substream *substream,
 	return snd_pcm_lib_free_pages(substream);
 }
 
+static int sst_enable_ssp(struct snd_pcm_substream *substream,
+			struct snd_soc_dai *dai)
+{
+	if (!dai->active) {
+		sst_handle_vb_timer(dai->platform, true);
+		send_ssp_cmd(dai->platform, dai->name, 1);
+	}
+	return 0;
+}
+
+static void sst_disable_ssp(struct snd_pcm_substream *substream,
+			struct snd_soc_dai *dai)
+{
+	if (!dai->active) {
+		send_ssp_cmd(dai->platform, dai->name, 0);
+		sst_handle_vb_timer(dai->platform, false);
+	}
+}
+
 static struct snd_soc_dai_ops sst_media_dai_ops = {
 	.startup = sst_media_open,
 	.shutdown = sst_media_close,
 	.prepare = sst_media_prepare,
 	.hw_params = sst_media_hw_params,
 	.hw_free = sst_media_hw_free,
+	.mute_stream = sst_media_digital_mute,
+};
+
+static struct snd_soc_dai_ops sst_compr_dai_ops = {
+	.mute_stream = sst_media_digital_mute,
+};
+
+static struct snd_soc_dai_ops sst_be_dai_ops = {
+	.startup = sst_enable_ssp,
+	.shutdown = sst_disable_ssp,
 };
 
 static struct snd_soc_dai_driver sst_platform_dai[] = {
@@ -451,6 +485,7 @@ static struct snd_soc_dai_driver sst_platform_dai[] = {
 {
 	.name = "compress-cpu-dai",
 	.compress_dai = 1,
+	.ops = &sst_compr_dai_ops,
 	.playback = {
 		.stream_name = "Compress Playback",
 		.channels_min = SST_STEREO,
@@ -462,6 +497,7 @@ static struct snd_soc_dai_driver sst_platform_dai[] = {
 /*BE CPU  Dais */
 {
 	.name = "ssp0-port",
+	.ops = &sst_be_dai_ops,
 	.playback = {
 		.stream_name = "ssp0 Tx",
 		.channels_min = SST_STEREO,
@@ -479,6 +515,7 @@ static struct snd_soc_dai_driver sst_platform_dai[] = {
 },
 {
 	.name = "ssp1-port",
+	.ops = &sst_be_dai_ops,
 	.playback = {
 		.stream_name = "ssp1 Tx",
 		.channels_min = SST_STEREO,
@@ -496,6 +533,7 @@ static struct snd_soc_dai_driver sst_platform_dai[] = {
 },
 {
 	.name = "ssp2-port",
+	.ops = &sst_be_dai_ops,
 	.playback = {
 		.stream_name = "ssp2 Tx",
 		.channels_min = SST_STEREO,
-- 
1.7.0.4