From eecaf360de2ae3068f51746a64e943c8d18a4f6f Mon Sep 17 00:00:00 2001 From: Benjamin Doron Date: Tue, 4 Aug 2020 06:45:46 +0000 Subject: soc/intel/skylake: Support NHLT 1ch DMIC Allows advertising support for a 1ch array DMIC in the NHLT table. Boards use the NHLT if a microphone is connected to the DSP. Tested on an Acer Aspire VN7-572G (Skylake-U) on Windows 10. A custom ALSA topology will be required for Linux. Change-Id: Idba3a714faab5ca1958de7dcfc0fc667c60ea7fd Signed-off-by: Benjamin Doron Reviewed-on: https://review.coreboot.org/c/coreboot/+/43072 Tested-by: build bot (Jenkins) Reviewed-by: Angel Pons --- src/soc/intel/skylake/nhlt/Makefile.inc | 5 +++++ src/soc/intel/skylake/nhlt/dmic.c | 36 +++++++++++++++++++++++++++++++++ 2 files changed, 41 insertions(+) (limited to 'src/soc/intel/skylake/nhlt') diff --git a/src/soc/intel/skylake/nhlt/Makefile.inc b/src/soc/intel/skylake/nhlt/Makefile.inc index 5c8bd80e3c..7596492f48 100644 --- a/src/soc/intel/skylake/nhlt/Makefile.inc +++ b/src/soc/intel/skylake/nhlt/Makefile.inc @@ -15,6 +15,7 @@ else NHLT_BLOB_PATH = 3rdparty/blobs/soc/intel/skylake/nhlt-blobs endif +DMIC_1CH_48KHZ_16B = dmic-1ch-48khz-16b.bin DMIC_2CH_48KHZ_16B = dmic-2ch-48khz-16b.bin DMIC_2CH_48KHZ_32B = dmic-2ch-48khz-32b.bin DMIC_4CH_48KHZ_16B = dmic-4ch-48khz-16b.bin @@ -31,6 +32,10 @@ SSM4567_RENDER = ssm4567-render-2ch-48khz-24b.bin SSM4567_CAPTURE = ssm4567-capture-4ch-48khz-32b.bin DA7219_RENDER_CAPTURE = dialog-2ch-48khz-24b.bin +cbfs-files-$(CONFIG_NHLT_DMIC_1CH) += $(DMIC_1CH_48KHZ_16B) +$(DMIC_1CH_48KHZ_16B)-file := $(NHLT_BLOB_PATH)/$(DMIC_1CH_48KHZ_16B) +$(DMIC_1CH_48KHZ_16B)-type := raw + cbfs-files-$(CONFIG_NHLT_DMIC_2CH) += $(DMIC_2CH_48KHZ_16B) $(DMIC_2CH_48KHZ_16B)-file := $(NHLT_BLOB_PATH)/$(DMIC_2CH_48KHZ_16B) $(DMIC_2CH_48KHZ_16B)-type := raw diff --git a/src/soc/intel/skylake/nhlt/dmic.c b/src/soc/intel/skylake/nhlt/dmic.c index 76c1990826..b8802a6b2c 100644 --- a/src/soc/intel/skylake/nhlt/dmic.c +++ b/src/soc/intel/skylake/nhlt/dmic.c @@ -2,6 +2,39 @@ #include +static const struct nhlt_format_config dmic_1ch_formats[] = { + /* 48 KHz 16-bits per sample. */ + { + .num_channels = 1, + .sample_freq_khz = 48, + .container_bits_per_sample = 16, + .valid_bits_per_sample = 16, + .speaker_mask = SPEAKER_FRONT_CENTER, + .settings_file = "dmic-1ch-48khz-16b.bin", + }, +}; + +static const struct nhlt_dmic_array_config dmic_1ch_mic_config = { + .tdm_config = { + .config_type = NHLT_TDM_BASIC, + }, + .array_type = NHLT_MIC_ARRAY_VENDOR_DEFINED, +}; + +static const struct nhlt_endp_descriptor dmic_1ch_descriptors[] = { + { + .link = NHLT_LINK_PDM, + .device = NHLT_PDM_DEV_CAVS15, + .direction = NHLT_DIR_CAPTURE, + .vid = NHLT_VID, + .did = NHLT_DID_DMIC, + .cfg = &dmic_1ch_mic_config, + .cfg_size = sizeof(dmic_1ch_mic_config), + .formats = dmic_1ch_formats, + .num_formats = ARRAY_SIZE(dmic_1ch_formats), + }, +}; + static const struct nhlt_format_config dmic_2ch_formats[] = { /* 48 KHz 16-bits per sample. */ { @@ -91,6 +124,9 @@ static const struct nhlt_endp_descriptor dmic_4ch_descriptors[] = { int nhlt_soc_add_dmic_array(struct nhlt *nhlt, int num_channels) { switch (num_channels) { + case 1: + return nhlt_add_endpoints(nhlt, dmic_1ch_descriptors, + ARRAY_SIZE(dmic_1ch_descriptors)); case 2: return nhlt_add_endpoints(nhlt, dmic_2ch_descriptors, ARRAY_SIZE(dmic_2ch_descriptors)); -- cgit v1.2.3