Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * mtk-soundcard-driver.h -- MediaTek soundcard driver common definition
4 *
5 * Copyright (c) 2022 MediaTek Inc.
6 * Author: Trevor Wu <trevor.wu@mediatek.com>
7 */
8
9#ifndef _MTK_SOUNDCARD_DRIVER_H_
10#define _MTK_SOUNDCARD_DRIVER_H_
11
12struct mtk_sof_priv;
13struct mtk_soc_card_data;
14struct snd_pcm_hw_constraint_list;
15
16enum mtk_pcm_constraint_type {
17 MTK_CONSTRAINT_PLAYBACK,
18 MTK_CONSTRAINT_CAPTURE,
19 MTK_CONSTRAINT_HDMIDP,
20 MTK_CONSTRAINT_MAX
21};
22
23struct mtk_pcm_constraints_data {
24 const struct snd_pcm_hw_constraint_list *channels;
25 const struct snd_pcm_hw_constraint_list *rates;
26};
27
28struct mtk_platform_card_data {
29 struct snd_soc_card *card;
30 struct snd_soc_jack *jacks;
31 const struct mtk_pcm_constraints_data *pcm_constraints;
32 u8 num_jacks;
33 u8 num_pcm_constraints;
34 u8 flags;
35};
36
37struct mtk_soundcard_pdata {
38 const char *card_name;
39 struct mtk_platform_card_data *card_data;
40 const struct mtk_sof_priv *sof_priv;
41
42 int (*soc_probe)(struct mtk_soc_card_data *card_data, bool legacy);
43};
44
45/* Common playback/capture card startup ops */
46extern const struct snd_soc_ops mtk_soundcard_common_playback_ops;
47extern const struct snd_soc_ops mtk_soundcard_common_capture_ops;
48
49/* Exported for custom/extended soundcard startup ops */
50int mtk_soundcard_startup(struct snd_pcm_substream *substream,
51 enum mtk_pcm_constraint_type ctype);
52
53int parse_dai_link_info(struct snd_soc_card *card);
54void clean_card_reference(struct snd_soc_card *card);
55int mtk_soundcard_common_probe(struct platform_device *pdev);
56#endif