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ASoC: Intel: Add DMIC channel constraint for bxt machine

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Add channel and rate constraints for Refcap and dmiccap devices
respectively.

Signed-off-by: Yong Zhi <yong.zhi@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Yong Zhi 2016-09-26 13:02:29 -07:00 committed by Mark Brown
parent 88b456b0f4
commit 43c02ede76
1 changed files with 63 additions and 0 deletions
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63
sound/soc/intel/boards/bxt_da7219_max98357a.c
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@ -37,6 +37,7 @@ enum {
BXT_DPCM_AUDIO_PB = 0,
BXT_DPCM_AUDIO_CP,
BXT_DPCM_AUDIO_REF_CP,
BXT_DPCM_AUDIO_DMIC_CP,
BXT_DPCM_AUDIO_HDMI1_PB,
BXT_DPCM_AUDIO_HDMI2_PB,
BXT_DPCM_AUDIO_HDMI3_PB,
@ -252,6 +253,52 @@ static struct snd_soc_ops broxton_da7219_ops = {
.hw_free = broxton_da7219_hw_free,
};
static int broxton_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 = DUAL_CHANNEL;
return 0;
}
static int broxton_dmic_startup(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
runtime->hw.channels_max = DUAL_CHANNEL;
snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
&constraints_channels);
return snd_pcm_hw_constraint_list(substream->runtime, 0,
SNDRV_PCM_HW_PARAM_RATE, &constraints_rates);
}
static const struct snd_soc_ops broxton_dmic_ops = {
.startup = broxton_dmic_startup,
};
static const unsigned int rates_16000[] = {
16000,
};
static const struct snd_pcm_hw_constraint_list constraints_16000 = {
.count = ARRAY_SIZE(rates_16000),
.list = rates_16000,
};
static int broxton_refcap_startup(struct snd_pcm_substream *substream)
{
return snd_pcm_hw_constraint_list(substream->runtime, 0,
SNDRV_PCM_HW_PARAM_RATE,
&constraints_16000);
};
static struct snd_soc_ops broxton_refcap_ops = {
.startup = broxton_refcap_startup,
};
/* broxton digital audio interface glue - connects codec <--> CPU */
static struct snd_soc_dai_link broxton_dais[] = {
/* Front End DAI links */
@ -299,6 +346,21 @@ static struct snd_soc_dai_link broxton_dais[] = {
.ignore_suspend = 1,
.nonatomic = 1,
.dynamic = 1,
.ops = &broxton_refcap_ops,
},
[BXT_DPCM_AUDIO_DMIC_CP]
{
.name = "Bxt 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 = "0000:00:0e.0",
.init = NULL,
.dpcm_capture = 1,
.nonatomic = 1,
.dynamic = 1,
.ops = &broxton_dmic_ops,
},
[BXT_DPCM_AUDIO_HDMI1_PB]
{
@ -382,6 +444,7 @@ static struct snd_soc_dai_link broxton_dais[] = {
.codec_dai_name = "dmic-hifi",
.platform_name = "0000:00:0e.0",
.ignore_suspend = 1,
.be_hw_params_fixup = broxton_dmic_fixup,
.dpcm_capture = 1,
.no_pcm = 1,
},