Support AVS-DMIC configuration by implementing board connecting AVS platform component with DMIC codec one.
Signed-off-by: Amadeusz Sławiński amadeuszx.slawinski@linux.intel.com Signed-off-by: Cezary Rojewski cezary.rojewski@intel.com --- sound/soc/intel/avs/boards/Kconfig | 8 +++ sound/soc/intel/avs/boards/Makefile | 2 + sound/soc/intel/avs/boards/dmic.c | 93 +++++++++++++++++++++++++++++ 3 files changed, 103 insertions(+) create mode 100644 sound/soc/intel/avs/boards/dmic.c
diff --git a/sound/soc/intel/avs/boards/Kconfig b/sound/soc/intel/avs/boards/Kconfig index de62c0437f6e..1d4597fa9814 100644 --- a/sound/soc/intel/avs/boards/Kconfig +++ b/sound/soc/intel/avs/boards/Kconfig @@ -4,6 +4,14 @@ menu "Intel AVS Machine drivers"
comment "Available DSP configurations"
+config SND_SOC_INTEL_AVS_MACH_DMIC + tristate "DMIC generic board" + select SND_SOC_DMIC + help + This adds support for AVS with Digital Mic array configuration. + Say Y or m if you have such a device. This is a recommended option. + If unsure select "N". + config SND_SOC_INTEL_AVS_MACH_HDAUDIO tristate "HD-Audio generic board" select SND_SOC_HDA diff --git a/sound/soc/intel/avs/boards/Makefile b/sound/soc/intel/avs/boards/Makefile index e5281148e5d4..2ff35d4d97d8 100644 --- a/sound/soc/intel/avs/boards/Makefile +++ b/sound/soc/intel/avs/boards/Makefile @@ -1,5 +1,7 @@ # SPDX-License-Identifier: GPL-2.0-only
+snd-soc-avs-dmic-objs := dmic.o snd-soc-avs-hdaudio-objs := hdaudio.o
+obj-$(CONFIG_SND_SOC_INTEL_AVS_MACH_DMIC) += snd-soc-avs-dmic.o obj-$(CONFIG_SND_SOC_INTEL_AVS_MACH_HDAUDIO) += snd-soc-avs-hdaudio.o diff --git a/sound/soc/intel/avs/boards/dmic.c b/sound/soc/intel/avs/boards/dmic.c new file mode 100644 index 000000000000..90a921638572 --- /dev/null +++ b/sound/soc/intel/avs/boards/dmic.c @@ -0,0 +1,93 @@ +// SPDX-License-Identifier: GPL-2.0-only +// +// Copyright(c) 2021-2022 Intel Corporation. All rights reserved. +// +// Authors: Cezary Rojewski cezary.rojewski@intel.com +// Amadeusz Slawinski amadeuszx.slawinski@linux.intel.com +// + +#include <linux/device.h> +#include <linux/module.h> +#include <sound/soc.h> +#include <sound/soc-acpi.h> + +SND_SOC_DAILINK_DEF(dmic_pin, DAILINK_COMP_ARRAY(COMP_CPU("DMIC Pin"))); +SND_SOC_DAILINK_DEF(dmic_wov_pin, DAILINK_COMP_ARRAY(COMP_CPU("DMIC WoV Pin"))); +SND_SOC_DAILINK_DEF(dmic_codec, DAILINK_COMP_ARRAY(COMP_CODEC("dmic-codec", "dmic-hifi"))); +/* Name overridden on probe */ +SND_SOC_DAILINK_DEF(platform, DAILINK_COMP_ARRAY(COMP_PLATFORM(""))); + +static struct snd_soc_dai_link card_dai_links[] = { + /* Back ends */ + { + .name = "DMIC", + .id = 0, + .dpcm_capture = 1, + .nonatomic = 1, + .no_pcm = 1, + SND_SOC_DAILINK_REG(dmic_pin, dmic_codec, platform), + }, + { + .name = "DMIC WoV", + .id = 1, + .dpcm_capture = 1, + .nonatomic = 1, + .no_pcm = 1, + .ignore_suspend = 1, + SND_SOC_DAILINK_REG(dmic_wov_pin, dmic_codec, platform), + }, +}; + +static const struct snd_soc_dapm_widget card_widgets[] = { + SND_SOC_DAPM_MIC("SoC DMIC", NULL), +}; + +static const struct snd_soc_dapm_route card_routes[] = { + {"DMic", NULL, "SoC DMIC"}, + {"DMIC Rx", NULL, "Capture"}, + {"DMIC WoV Rx", NULL, "Capture"}, +}; + +static int avs_dmic_probe(struct platform_device *pdev) +{ + struct snd_soc_acpi_mach *mach; + struct snd_soc_card *card; + struct device *dev = &pdev->dev; + int ret; + + mach = dev_get_platdata(dev); + + card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL); + if (!card) + return -ENOMEM; + + card->name = "avs_dmic"; + card->dev = dev; + card->owner = THIS_MODULE; + card->dai_link = card_dai_links; + card->num_links = ARRAY_SIZE(card_dai_links); + card->dapm_widgets = card_widgets; + card->num_dapm_widgets = ARRAY_SIZE(card_widgets); + card->dapm_routes = card_routes; + card->num_dapm_routes = ARRAY_SIZE(card_routes); + card->fully_routed = true; + + ret = snd_soc_fixup_dai_links_platform_name(card, mach->mach_params.platform); + if (ret) + return ret; + + return devm_snd_soc_register_card(dev, card); +} + +static struct platform_driver avs_dmic_driver = { + .probe = avs_dmic_probe, + .driver = { + .name = "avs_dmic", + .pm = &snd_soc_pm_ops, + }, +}; + +module_platform_driver(avs_dmic_driver); + +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:avs_dmic");