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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/sound/soc/mediatek/common/mtk-soundcard-driver.h
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/* SPDX-License-Identifier: GPL-2.0 */

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/*

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 * mtk-soundcard-driver.h  --  MediaTek soundcard driver common definition

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 *

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 * Copyright (c) 2022 MediaTek Inc.

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 * Author: Trevor Wu <[email protected]>

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 */

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#ifndef _MTK_SOUNDCARD_DRIVER_H_

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#define _MTK_SOUNDCARD_DRIVER_H_

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struct mtk_sof_priv;

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struct mtk_soc_card_data;

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struct snd_pcm_hw_constraint_list;

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enum mtk_pcm_constraint_type {

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	MTK_CONSTRAINT_PLAYBACK,

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	MTK_CONSTRAINT_CAPTURE,

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	MTK_CONSTRAINT_HDMIDP,

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	MTK_CONSTRAINT_MAX

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};

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struct mtk_pcm_constraints_data {

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	const struct snd_pcm_hw_constraint_list *channels;

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	const struct snd_pcm_hw_constraint_list *rates;

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};

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struct mtk_platform_card_data {

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	struct snd_soc_card *card;

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	struct snd_soc_jack *jacks;

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	const struct mtk_pcm_constraints_data *pcm_constraints;

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	u8 num_jacks;

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	u8 num_pcm_constraints;

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	u8 flags;

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};

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struct mtk_soundcard_pdata {

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	const char *card_name;

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	struct mtk_platform_card_data *card_data;

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	const struct mtk_sof_priv *sof_priv;

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	int (*soc_probe)(struct mtk_soc_card_data *card_data, bool legacy);

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};

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/* Common playback/capture card startup ops */

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extern const struct snd_soc_ops mtk_soundcard_common_playback_ops;

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extern const struct snd_soc_ops mtk_soundcard_common_capture_ops;

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/* Exported for custom/extended soundcard startup ops */

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int mtk_soundcard_startup(struct snd_pcm_substream *substream,

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			  enum mtk_pcm_constraint_type ctype);

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int parse_dai_link_info(struct snd_soc_card *card);

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void clean_card_reference(struct snd_soc_card *card);

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int mtk_soundcard_common_probe(struct platform_device *pdev);

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#endif

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