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 --- sound/soc/intel/skylake/skl-nhlt.c | 37 +++++++++++++++++++++++++++++++++++++ sound/soc/intel/skylake/skl-nhlt.h | 22 ++++++++++++++++++++++ sound/soc/intel/skylake/skl.c | 10 +++++++++- sound/soc/intel/skylake/skl.h | 6 ++++++ 4 files changed, 74 insertions(+), 1 deletion(-)

diff --git a/sound/soc/intel/skylake/skl-nhlt.c b/sound/soc/intel/skylake/skl-nhlt.c index 7d73648..5448a48 100644 --- a/sound/soc/intel/skylake/skl-nhlt.c +++ b/sound/soc/intel/skylake/skl-nhlt.c @@ -149,6 +149,43 @@ struct nhlt_specific_cfg return NULL; }

+int skl_get_ep_dmic(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 hdac_bus *bus = ebus_to_hbus(&skl->ebus); + struct device *dev = bus->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; diff --git a/sound/soc/intel/skylake/skl-nhlt.h b/sound/soc/intel/skylake/skl-nhlt.h index 3769f9f..8da502b 100644 --- a/sound/soc/intel/skylake/skl-nhlt.h +++ b/sound/soc/intel/skylake/skl-nhlt.h @@ -103,4 +103,26 @@ struct nhlt_resource_desc { u64 length; } __packed;

+#define MIC_ARRAY_2CH 2 +#define MIC_ARRAY_4CH 4 + +struct nhlt_tdm_config { + uint8_t virtual_slot; + uint8_t config_type; +} __packed; + +struct nhlt_dmic_array_config { + struct nhlt_tdm_config tdm_config; + uint8_t array_type; +} __packed; + +enum { + NHLT_MIC_ARRAY_2CH_SMALL = 0xa, + NHLT_MIC_ARRAY_2CH_BIG = 0xb, + NHLT_MIC_ARRAY_4CH_1ST_GEOM = 0xc, + NHLT_MIC_ARRAY_4CH_L_SHAPED = 0xd, + NHLT_MIC_ARRAY_4CH_2ND_GEOM = 0xe, + NHLT_MIC_ARRAY_VENDOR_DEFINED = 0xf, +}; + #endif diff --git a/sound/soc/intel/skylake/skl.c b/sound/soc/intel/skylake/skl.c index 06d8c26..a75b05f 100644 --- a/sound/soc/intel/skylake/skl.c +++ b/sound/soc/intel/skylake/skl.c @@ -35,6 +35,8 @@ #include "skl-sst-dsp.h" #include "skl-sst-ipc.h"

+static struct skl_dmic_info skl_dmic_data; + /* * initialize the PCI registers */ @@ -397,6 +399,10 @@ static int skl_machine_device_register(struct skl *skl, void *driver_data) platform_device_put(pdev); return -EIO; } + + if (mach->pdata) + dev_set_drvdata(&pdev->dev, mach->pdata); + skl->i2s_dev = pdev;

return 0; @@ -666,6 +672,8 @@ static int skl_probe(struct pci_dev *pci,

pci_set_drvdata(skl->pci, ebus);

+ skl_dmic_data.dmic_num = skl_get_ep_dmic(skl); + /* check if dsp is there */ if (ebus->ppcap) { err = skl_machine_device_register(skl, @@ -789,7 +797,7 @@ static struct sst_acpi_mach sst_skl_devdata[] = { { "INT343B", "skl_nau88l25_ssm4567_i2s", "intel/dsp_fw_release.bin", NULL, NULL, NULL }, { "MX98357A", "skl_nau88l25_max98357a_i2s", "intel/dsp_fw_release.bin", - NULL, NULL, NULL }, + NULL, NULL, &skl_dmic_data}, {} };

diff --git a/sound/soc/intel/skylake/skl.h b/sound/soc/intel/skylake/skl.h index 4b4b387..889ec30 100644 --- a/sound/soc/intel/skylake/skl.h +++ b/sound/soc/intel/skylake/skl.h @@ -90,6 +90,11 @@ struct skl_dma_params { u8 stream_tag; };

+/* to pass dmic data */ +struct skl_dmic_info { + u32 dmic_num; +}; + struct skl_dsp_ops { int id; struct skl_dsp_loader_ops (*loader_ops)(void); @@ -108,6 +113,7 @@ void skl_nhlt_free(struct nhlt_acpi_table *addr); struct nhlt_specific_cfg *skl_get_ep_blob(struct skl *skl, u32 instance, u8 link_type, u8 s_fmt, u8 no_ch, u32 s_rate, u8 dirn);

+int skl_get_ep_dmic(struct skl *skl); int skl_nhlt_update_topology_bin(struct skl *skl); int skl_init_dsp(struct skl *skl); int skl_free_dsp(struct skl *skl);