[alsa-devel] [PATCH v2 08/12] ASoC: Intel: Skylake: Add dai link for DMIC capture
Vinod Koul
vinod.koul at intel.com
Thu Dec 3 18:59:57 CET 2015
From: Jeeja KP <jeeja.kp at intel.com>
Since in Skylake we support another DAI for DMIC quad capture,
add a dailink for this as well. Also specify constrains for DMIC
FE devices and fixup for DMIC BEs
Signed-off-by: Dharageswari.R <dharageswari.r at intel.com>
Signed-off-by: Jeeja KP <jeeja.kp at intel.com>
Signed-off-by: Vinod Koul <vinod.koul at intel.com>
---
sound/soc/intel/boards/skl_rt286.c | 51 ++++++++++++++++++++++++++++++++++++++
1 file changed, 51 insertions(+)
diff --git a/sound/soc/intel/boards/skl_rt286.c b/sound/soc/intel/boards/skl_rt286.c
index 57333a476136..e4fc8a1ce471 100644
--- a/sound/soc/intel/boards/skl_rt286.c
+++ b/sound/soc/intel/boards/skl_rt286.c
@@ -190,6 +190,42 @@ static struct snd_soc_ops skylake_rt286_ops = {
.hw_params = skylake_rt286_hw_params,
};
+static int skylake_dmic_fixup(struct snd_soc_pcm_runtime *rtd,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_interval *channels = hw_param_interval(params,
+ SNDRV_PCM_HW_PARAM_CHANNELS);
+ channels->min = channels->max = 4;
+
+ return 0;
+}
+
+static unsigned int channels_dmic[] = {
+ 2, 4,
+};
+
+static struct snd_pcm_hw_constraint_list constraints_dmic_channels = {
+ .count = ARRAY_SIZE(channels_dmic),
+ .list = channels_dmic,
+ .mask = 0,
+};
+
+static int skylake_dmic_startup(struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+
+ runtime->hw.channels_max = 4;
+ snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
+ &constraints_dmic_channels);
+
+ return snd_pcm_hw_constraint_list(substream->runtime, 0,
+ SNDRV_PCM_HW_PARAM_RATE, &constraints_rates);
+}
+
+static struct snd_soc_ops skylake_dmic_ops = {
+ .startup = skylake_dmic_startup,
+};
+
/* skylake digital audio interface glue - connects codec <--> CPU */
static struct snd_soc_dai_link skylake_rt286_dais[] = {
/* Front End DAI links */
@@ -238,6 +274,20 @@ static struct snd_soc_dai_link skylake_rt286_dais[] = {
.nonatomic = 1,
.dynamic = 1,
},
+ {
+ .name = "Skl Audio DMIC cap",
+ .stream_name = "dmiccap",
+ .cpu_dai_name = "DMIC Pin",
+ .codec_name = "snd-soc-dummy",
+ .codec_dai_name = "snd-soc-dummy-dai",
+ .platform_name = "0000:00:1f.3",
+ .init = NULL,
+ .dpcm_capture = 1,
+ .ignore_suspend = 1,
+ .nonatomic = 1,
+ .dynamic = 1,
+ .ops = &skylake_dmic_ops,
+ },
/* Back End DAI links */
{
@@ -267,6 +317,7 @@ static struct snd_soc_dai_link skylake_rt286_dais[] = {
.codec_name = "dmic-codec",
.codec_dai_name = "dmic-hifi",
.platform_name = "0000:00:1f.3",
+ .be_hw_params_fixup = skylake_dmic_fixup,
.ignore_suspend = 1,
.dpcm_capture = 1,
.no_pcm = 1,
--
1.9.1
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