diff options
| author | Senthilnathan Veppur <senthilnathanx.veppur@intel.com> | 2016-06-13 17:58:58 +0530 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2016-06-14 14:59:33 +0100 |
| commit | bfcdc6d19008c0f11cba30c2cff1b63ec4e7a744 (patch) | |
| tree | 53d596affe8f4c0fcc6b48c99150a9814d52c344 | |
| parent | 7b96144df1b143750921605d8b29494d3e93c150 (diff) | |
ASoC: Intel: Add DMIC 4 channel support for bxt machine
Like Skylake, we can support 4 channel for DMIC, so add
hw_params and constraints in the bxt-rt298 machine
While at it, also add codec1 pipe for speaker playback.
Signed-off-by: Senthilnathan Veppur <senthilnathanx.veppur@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | sound/soc/intel/boards/bxt_rt298.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/sound/soc/intel/boards/bxt_rt298.c b/sound/soc/intel/boards/bxt_rt298.c index f4787515c0ed..9b649b6cc757 100644 --- a/sound/soc/intel/boards/bxt_rt298.c +++ b/sound/soc/intel/boards/bxt_rt298.c @@ -33,6 +33,7 @@ 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, @@ -88,6 +89,7 @@ static const struct snd_soc_dapm_route broxton_rt298_map[] = { /* CODEC BE connections */ { "AIF1 Playback", NULL, "ssp5 Tx"}, { "ssp5 Tx", NULL, "codec0_out"}, + { "ssp5 Tx", NULL, "codec1_out"}, { "codec0_in", NULL, "ssp5 Rx" }, { "ssp5 Rx", NULL, "AIF1 Capture" }, @@ -169,6 +171,55 @@ static struct snd_soc_ops broxton_rt298_ops = { .hw_params = broxton_rt298_hw_params, }; +static unsigned int rates[] = { + 48000, +}; + +static struct snd_pcm_hw_constraint_list constraints_rates = { + .count = ARRAY_SIZE(rates), + .list = rates, + .mask = 0, +}; + +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); + if (params_channels(params) == 2) + channels->min = channels->max = 2; + else + 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 broxton_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 broxton_dmic_ops = { + .startup = broxton_dmic_startup, +}; + /* broxton digital audio interface glue - connects codec <--> CPU */ static struct snd_soc_dai_link broxton_rt298_dais[] = { /* Front End DAI links */ @@ -211,6 +262,20 @@ static struct snd_soc_dai_link broxton_rt298_dais[] = { .nonatomic = 1, .dynamic = 1, }, + [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] { .name = "Bxt HDMI Port1", @@ -276,6 +341,7 @@ static struct snd_soc_dai_link broxton_rt298_dais[] = { .codec_name = "dmic-codec", .codec_dai_name = "dmic-hifi", .platform_name = "0000:00:0e.0", + .be_hw_params_fixup = broxton_dmic_fixup, .ignore_suspend = 1, .dpcm_capture = 1, .no_pcm = 1, |