sound/soc/mediatek/mt6797/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 */
  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 */
  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
 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 }