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 */
11 static 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 */
mtk_dai_hostless_startup(struct snd_pcm_substream * substream,struct snd_soc_dai * dai)37 static 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 
45 static 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 
60 static 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 
mt6797_dai_hostless_register(struct mtk_base_afe * afe)101 int 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 }
119