diff options
| author | Yong Zhi <yong.zhi@intel.com> | 2016-05-26 21:30:15 -0700 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2016-05-30 18:16:44 +0100 |
| commit | f65cf7d666371562ef83b487a31e73642f3a3564 (patch) | |
| tree | f63d27e08341700cb221106be3d180172e1ed892 /sound/soc/intel/skylake/skl-nhlt.c | |
| parent | 0c7941a63a0f46cfd4c41f30e5fcd55e678d535c (diff) | |
ASoC: Intel: Skylake: Add api to retrieve dmic array info from nhlt
Skylake can be configured with either both 2 and 4 channel DMIC
array, or 2 channel DMIC array only, this patch provides an API to
retrieve the DMIC info from nhlt.
Signed-off-by: Yong Zhi <yong.zhi@intel.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/intel/skylake/skl-nhlt.c')
| -rw-r--r-- | sound/soc/intel/skylake/skl-nhlt.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/sound/soc/intel/skylake/skl-nhlt.c b/sound/soc/intel/skylake/skl-nhlt.c index 7d73648e5f9a..3f8e6f0b7eb5 100644 --- a/sound/soc/intel/skylake/skl-nhlt.c +++ b/sound/soc/intel/skylake/skl-nhlt.c @@ -17,6 +17,7 @@ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * */ +#include <linux/pci.h> #include "skl.h" /* Unique identification for getting NHLT blobs */ @@ -149,6 +150,45 @@ struct nhlt_specific_cfg return NULL; } +int skl_get_dmic_geo(struct skl *skl) +{ + struct nhlt_acpi_table *nhlt = (struct nhlt_acpi_table *)skl->nhlt; + struct nhlt_endpoint *epnt; + struct nhlt_dmic_array_config *cfg; + struct device *dev = &skl->pci->dev; + unsigned int dmic_geo = 0; + u8 j; + + epnt = (struct nhlt_endpoint *)nhlt->desc; + + for (j = 0; j < nhlt->endpoint_count; j++) { + if (epnt->linktype == NHLT_LINK_DMIC) { + cfg = (struct nhlt_dmic_array_config *) + (epnt->config.caps); + switch (cfg->array_type) { + case NHLT_MIC_ARRAY_2CH_SMALL: + case NHLT_MIC_ARRAY_2CH_BIG: + dmic_geo |= MIC_ARRAY_2CH; + break; + + case NHLT_MIC_ARRAY_4CH_1ST_GEOM: + case NHLT_MIC_ARRAY_4CH_L_SHAPED: + case NHLT_MIC_ARRAY_4CH_2ND_GEOM: + dmic_geo |= MIC_ARRAY_4CH; + break; + + default: + dev_warn(dev, "undefined DMIC array_type 0x%0x\n", + cfg->array_type); + + } + } + epnt = (struct nhlt_endpoint *)((u8 *)epnt + epnt->length); + } + + return dmic_geo; +} + static void skl_nhlt_trim_space(struct skl *skl) { char *s = skl->tplg_name; |