mt6797-dai-hostless.c

  1// SPDX-License-Identifier: GPL-2.0
  2//
  3// MediaTek ALSA SoC Audio DAI Hostless Control
  4//
  5// Copyright (c) 2018 MediaTek Inc.
  6// Author: KaiChieh Chuang <kaichieh.chuang@mediatek.com>
  7
  8#include "mt6797-afe-common.h"
  9
 10/* dai component */
 11static const struct snd_soc_dapm_route mtk_dai_hostless_routes[] = {
 12	/* Hostless ADDA Loopback */
 13	{"ADDA_DL_CH1", "ADDA_UL_CH1", "Hostless LPBK DL"},
 14	{"ADDA_DL_CH1", "ADDA_UL_CH2", "Hostless LPBK DL"},
 15	{"ADDA_DL_CH2", "ADDA_UL_CH1", "Hostless LPBK DL"},
 16	{"ADDA_DL_CH2", "ADDA_UL_CH2", "Hostless LPBK DL"},
 17	{"Hostless LPBK UL", NULL, "ADDA Capture"},
 18
 19	/* Hostless Speech */
 20	{"ADDA_DL_CH1", "PCM_1_CAP_CH1", "Hostless Speech DL"},
 21	{"ADDA_DL_CH2", "PCM_1_CAP_CH1", "Hostless Speech DL"},
 22	{"ADDA_DL_CH2", "PCM_1_CAP_CH2", "Hostless Speech DL"},
 23	{"ADDA_DL_CH1", "PCM_2_CAP_CH1", "Hostless Speech DL"},
 24	{"ADDA_DL_CH2", "PCM_2_CAP_CH1", "Hostless Speech DL"},
 25	{"ADDA_DL_CH2", "PCM_2_CAP_CH2", "Hostless Speech DL"},
 26	{"PCM_1_PB_CH1", "ADDA_UL_CH1", "Hostless Speech DL"},
 27	{"PCM_1_PB_CH2", "ADDA_UL_CH2", "Hostless Speech DL"},
 28	{"PCM_2_PB_CH1", "ADDA_UL_CH1", "Hostless Speech DL"},
 29	{"PCM_2_PB_CH2", "ADDA_UL_CH2", "Hostless Speech DL"},
 30
 31	{"Hostless Speech UL", NULL, "PCM 1 Capture"},
 32	{"Hostless Speech UL", NULL, "PCM 2 Capture"},
 33	{"Hostless Speech UL", NULL, "ADDA Capture"},
 34};
 35
 36/* dai ops */
 37static int mtk_dai_hostless_startup(struct snd_pcm_substream *substream,
 38				    struct snd_soc_dai *dai)
 39{
 40	struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
 41
 42	return snd_soc_set_runtime_hwparams(substream, afe->mtk_afe_hardware);
 43}
 44
 45static const struct snd_soc_dai_ops mtk_dai_hostless_ops = {
 46	.startup = mtk_dai_hostless_startup,
 47};
 48
 49/* dai driver */
 50#define MTK_HOSTLESS_RATES (SNDRV_PCM_RATE_8000_48000 |\
 51			   SNDRV_PCM_RATE_88200 |\
 52			   SNDRV_PCM_RATE_96000 |\
 53			   SNDRV_PCM_RATE_176400 |\
 54			   SNDRV_PCM_RATE_192000)
 55
 56#define MTK_HOSTLESS_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
 57			     SNDRV_PCM_FMTBIT_S24_LE |\
 58			     SNDRV_PCM_FMTBIT_S32_LE)
 59
 60static struct snd_soc_dai_driver mtk_dai_hostless_driver[] = {
 61	{
 62		.name = "Hostless LPBK DAI",
 63		.id = MT6797_DAI_HOSTLESS_LPBK,
 64		.playback = {
 65			.stream_name = "Hostless LPBK DL",
 66			.channels_min = 1,
 67			.channels_max = 2,
 68			.rates = MTK_HOSTLESS_RATES,
 69			.formats = MTK_HOSTLESS_FORMATS,
 70		},
 71		.capture = {
 72			.stream_name = "Hostless LPBK UL",
 73			.channels_min = 1,
 74			.channels_max = 2,
 75			.rates = MTK_HOSTLESS_RATES,
 76			.formats = MTK_HOSTLESS_FORMATS,
 77		},
 78		.ops = &mtk_dai_hostless_ops,
 79	},
 80	{
 81		.name = "Hostless Speech DAI",
 82		.id = MT6797_DAI_HOSTLESS_SPEECH,
 83		.playback = {
 84			.stream_name = "Hostless Speech DL",
 85			.channels_min = 1,
 86			.channels_max = 2,
 87			.rates = MTK_HOSTLESS_RATES,
 88			.formats = MTK_HOSTLESS_FORMATS,
 89		},
 90		.capture = {
 91			.stream_name = "Hostless Speech UL",
 92			.channels_min = 1,
 93			.channels_max = 2,
 94			.rates = MTK_HOSTLESS_RATES,
 95			.formats = MTK_HOSTLESS_FORMATS,
 96		},
 97		.ops = &mtk_dai_hostless_ops,
 98	},
 99};
100
101int mt6797_dai_hostless_register(struct mtk_base_afe *afe)
102{
103	struct mtk_base_afe_dai *dai;
104
105	dai = devm_kzalloc(afe->dev, sizeof(*dai), GFP_KERNEL);
106	if (!dai)
107		return -ENOMEM;
108
109	list_add(&dai->list, &afe->sub_dais);
110
111	dai->dai_drivers = mtk_dai_hostless_driver;
112	dai->num_dai_drivers = ARRAY_SIZE(mtk_dai_hostless_driver);
113
114	dai->dapm_routes = mtk_dai_hostless_routes;
115	dai->num_dapm_routes = ARRAY_SIZE(mtk_dai_hostless_routes);
116
117	return 0;
118}