sound/soc/intel/boards/sof_sdw_rt712_sdca.c

// SPDX-License-Identifier: GPL-2.0-only
// Copyright (c) 2023 Intel Corporation

/*
 *  sof_sdw_rt712_sdca - Helpers to handle RT712-SDCA from generic machine driver
 */

#include <linux/device.h>
#include <linux/errno.h>
#include <linux/soundwire/sdw.h>
#include <linux/soundwire/sdw_type.h>
#include <sound/control.h>
#include <sound/soc.h>
#include <sound/soc-acpi.h>
#include <sound/soc-dapm.h>
#include "sof_board_helpers.h"
#include "sof_sdw_common.h"

static const struct snd_soc_dapm_widget rt712_spk_widgets[] = {
	SND_SOC_DAPM_SPK("Speaker", NULL),
};

/*
 * dapm routes for rt712 spk will be registered dynamically according
 * to the number of rt712 spk used. The first two entries will be registered
 * for one codec case, and the last two entries are also registered
 * if two rt712s are used.
 */
static const struct snd_soc_dapm_route rt712_spk_map[] = {
	{ "Speaker", NULL, "rt712 SPOL" },
	{ "Speaker", NULL, "rt712 SPOR" },
};

static const struct snd_kcontrol_new rt712_spk_controls[] = {
	SOC_DAPM_PIN_SWITCH("Speaker"),
};

int rt712_spk_rtd_init(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_card *card = rtd->card;
	int ret;

	card->components = devm_kasprintf(card->dev, GFP_KERNEL,
					  "%s spk:rt712",
					  card->components);
	if (!card->components)
		return -ENOMEM;

	ret = snd_soc_add_card_controls(card, rt712_spk_controls,
					ARRAY_SIZE(rt712_spk_controls));
	if (ret) {
		dev_err(card->dev, "rt712 spk controls addition failed: %d\n", ret);
		return ret;
	}

	ret = snd_soc_dapm_new_controls(&card->dapm, rt712_spk_widgets,
					ARRAY_SIZE(rt712_spk_widgets));
	if (ret) {
		dev_err(card->dev, "rt712 spk widgets addition failed: %d\n", ret);
		return ret;
	}

	ret = snd_soc_dapm_add_routes(&card->dapm, rt712_spk_map, ARRAY_SIZE(rt712_spk_map));
	if (ret)
		dev_err(rtd->dev, "failed to add SPK map: %d\n", ret);

	return ret;
}

static const char * const dmics[] = {
	"rt712-sdca-dmic"
};

int rt712_sdca_dmic_rtd_init(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_card *card = rtd->card;
	struct snd_soc_dai *codec_dai;
	struct snd_soc_component *component;

	codec_dai = get_codec_dai_by_name(rtd, dmics, ARRAY_SIZE(dmics));
	if (!codec_dai)
		return -EINVAL;

	component = codec_dai->component;
	card->components = devm_kasprintf(card->dev, GFP_KERNEL,
					  "%s mic:%s",
					  card->components, component->name_prefix);
	if (!card->components)
		return -ENOMEM;

	return 0;
}
MODULE_IMPORT_NS(SND_SOC_INTEL_SOF_BOARD_HELPERS);