Quelle  mt8186-dai-hostless.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0
//
// MediaTek ALSA SoC Audio DAI Hostless Control
//
// Copyright (c) 2022 MediaTek Inc.
// Author: Jiaxin Yu <jiaxin.yu@mediatek.com>

#include "mt8186-afe-common.h"

static const struct snd_pcm_hardware mt8186_hostless_hardware = {
 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
   SNDRV_PCM_INFO_MMAP_VALID),
 .period_bytes_min = 256,
 .period_bytes_max = 4 * 48 * 1024,
 .periods_min = 2,
 .periods_max = 256,
 .buffer_bytes_max = 4 * 48 * 1024,
 .fifo_size = 0,
};

/* dai component */
static const struct snd_soc_dapm_route mtk_dai_hostless_routes[] = {
 /* Hostless ADDA Loopback */
 {"ADDA_DL_CH1", "ADDA_UL_CH1 Switch", "Hostless LPBK DL"},
 {"ADDA_DL_CH1", "ADDA_UL_CH2 Switch", "Hostless LPBK DL"},
 {"ADDA_DL_CH2", "ADDA_UL_CH1 Switch", "Hostless LPBK DL"},
 {"ADDA_DL_CH2", "ADDA_UL_CH2 Switch", "Hostless LPBK DL"},
 {"I2S1_CH1", "ADDA_UL_CH1 Switch", "Hostless LPBK DL"},
 {"I2S1_CH2", "ADDA_UL_CH2 Switch", "Hostless LPBK DL"},
 {"I2S3_CH1", "ADDA_UL_CH1 Switch", "Hostless LPBK DL"},
 {"I2S3_CH1", "ADDA_UL_CH2 Switch", "Hostless LPBK DL"},
 {"I2S3_CH2", "ADDA_UL_CH1 Switch", "Hostless LPBK DL"},
 {"I2S3_CH2", "ADDA_UL_CH2 Switch", "Hostless LPBK DL"},
 {"Hostless LPBK UL", NULL, "ADDA_UL_Mux"},

 /* Hostelss FM */
 /* connsys_i2s to hw gain 1*/
 {"Hostless FM UL", NULL, "Connsys I2S"},

 {"HW_GAIN1_IN_CH1", "CONNSYS_I2S_CH1 Switch", "Hostless FM DL"},
 {"HW_GAIN1_IN_CH2", "CONNSYS_I2S_CH2 Switch", "Hostless FM DL"},
 /* hw gain to adda dl */
 {"Hostless FM UL", NULL, "HW Gain 1 Out"},

 {"ADDA_DL_CH1", "GAIN1_OUT_CH1 Switch", "Hostless FM DL"},
 {"ADDA_DL_CH2", "GAIN1_OUT_CH2 Switch", "Hostless FM DL"},
 /* hw gain to i2s3 */
 {"I2S3_CH1", "GAIN1_OUT_CH1 Switch", "Hostless FM DL"},
 {"I2S3_CH2", "GAIN1_OUT_CH2 Switch", "Hostless FM DL"},
 /* hw gain to i2s1 */
 {"I2S1_CH1", "GAIN1_OUT_CH1 Switch", "Hostless FM DL"},
 {"I2S1_CH2", "GAIN1_OUT_CH2 Switch", "Hostless FM DL"},

 /* Hostless_SRC */
 {"ADDA_DL_CH1", "SRC_1_OUT_CH1 Switch", "Hostless_SRC_1_DL"},
 {"ADDA_DL_CH2", "SRC_1_OUT_CH2 Switch", "Hostless_SRC_1_DL"},
 {"I2S1_CH1", "SRC_1_OUT_CH1 Switch", "Hostless_SRC_1_DL"},
 {"I2S1_CH2", "SRC_1_OUT_CH2 Switch", "Hostless_SRC_1_DL"},
 {"I2S3_CH1", "SRC_1_OUT_CH1 Switch", "Hostless_SRC_1_DL"},
 {"I2S3_CH2", "SRC_1_OUT_CH2 Switch", "Hostless_SRC_1_DL"},
 {"Hostless_SRC_1_UL", NULL, "HW_SRC_1_Out"},

 /* Hostless_SRC_bargein */
 {"HW_SRC_1_IN_CH1", "I2S0_CH1 Switch", "Hostless_SRC_Bargein_DL"},
 {"HW_SRC_1_IN_CH2", "I2S0_CH2 Switch", "Hostless_SRC_Bargein_DL"},
 {"Hostless_SRC_Bargein_UL", NULL, "I2S0"},

 /* Hostless AAudio */
 {"Hostless HW Gain AAudio In", NULL, "HW Gain 2 In"},
 {"Hostless SRC AAudio UL", NULL, "HW Gain 2 Out"},
 {"HW_SRC_2_IN_CH1", "HW_GAIN2_OUT_CH1 Switch", "Hostless SRC AAudio DL"},
 {"HW_SRC_2_IN_CH2", "HW_GAIN2_OUT_CH2 Switch", "Hostless SRC AAudio DL"},
};

/* dai ops */
static int mtk_dai_hostless_startup(struct snd_pcm_substream *substream,
        struct snd_soc_dai *dai)
{
 struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
 struct snd_pcm_runtime *runtime = substream->runtime;
 int ret;

 snd_soc_set_runtime_hwparams(substream, &mt8186_hostless_hardware);

 ret = snd_pcm_hw_constraint_integer(runtime,
         SNDRV_PCM_HW_PARAM_PERIODS);
 if (ret < 0) {
  dev_err(afe->dev, "snd_pcm_hw_constraint_integer failed\n");
  return ret;
 }

 return 0;
}

static const struct snd_soc_dai_ops mtk_dai_hostless_ops = {
 .startup = mtk_dai_hostless_startup,
};

/* dai driver */
#define MTK_HOSTLESS_RATES (SNDRV_PCM_RATE_8000_48000 |\
      SNDRV_PCM_RATE_88200 |\
      SNDRV_PCM_RATE_96000 |\
      SNDRV_PCM_RATE_176400 |\
      SNDRV_PCM_RATE_192000)

#define MTK_HOSTLESS_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
        SNDRV_PCM_FMTBIT_S24_LE |\
        SNDRV_PCM_FMTBIT_S32_LE)

static struct snd_soc_dai_driver mtk_dai_hostless_driver[] = {
 {
  .name = "Hostless LPBK DAI",
  .id = MT8186_DAI_HOSTLESS_LPBK,
  .playback = {
   .stream_name = "Hostless LPBK DL",
   .channels_min = 1,
   .channels_max = 2,
   .rates = MTK_HOSTLESS_RATES,
   .formats = MTK_HOSTLESS_FORMATS,
  },
  .capture = {
   .stream_name = "Hostless LPBK UL",
   .channels_min = 1,
   .channels_max = 2,
   .rates = MTK_HOSTLESS_RATES,
   .formats = MTK_HOSTLESS_FORMATS,
  },
  .ops = &mtk_dai_hostless_ops,
 },
 {
  .name = "Hostless FM DAI",
  .id = MT8186_DAI_HOSTLESS_FM,
  .playback = {
   .stream_name = "Hostless FM DL",
   .channels_min = 1,
   .channels_max = 2,
   .rates = MTK_HOSTLESS_RATES,
   .formats = MTK_HOSTLESS_FORMATS,
  },
  .capture = {
   .stream_name = "Hostless FM UL",
   .channels_min = 1,
   .channels_max = 2,
   .rates = MTK_HOSTLESS_RATES,
   .formats = MTK_HOSTLESS_FORMATS,
  },
  .ops = &mtk_dai_hostless_ops,
 },
 {
  .name = "Hostless_SRC_1_DAI",
  .id = MT8186_DAI_HOSTLESS_SRC_1,
  .playback = {
   .stream_name = "Hostless_SRC_1_DL",
   .channels_min = 1,
   .channels_max = 2,
   .rates = MTK_HOSTLESS_RATES,
   .formats = MTK_HOSTLESS_FORMATS,
  },
  .capture = {
   .stream_name = "Hostless_SRC_1_UL",
   .channels_min = 1,
   .channels_max = 2,
   .rates = MTK_HOSTLESS_RATES,
   .formats = MTK_HOSTLESS_FORMATS,
  },
  .ops = &mtk_dai_hostless_ops,
 },
 {
  .name = "Hostless_SRC_Bargein_DAI",
  .id = MT8186_DAI_HOSTLESS_SRC_BARGEIN,
  .playback = {
   .stream_name = "Hostless_SRC_Bargein_DL",
   .channels_min = 1,
   .channels_max = 2,
   .rates = MTK_HOSTLESS_RATES,
   .formats = MTK_HOSTLESS_FORMATS,
  },
  .capture = {
   .stream_name = "Hostless_SRC_Bargein_UL",
   .channels_min = 1,
   .channels_max = 2,
   .rates = MTK_HOSTLESS_RATES,
   .formats = MTK_HOSTLESS_FORMATS,
  },
  .ops = &mtk_dai_hostless_ops,
 },
 /* BE dai */
 {
  .name = "Hostless_UL1 DAI",
  .id = MT8186_DAI_HOSTLESS_UL1,
  .capture = {
   .stream_name = "Hostless_UL1 UL",
   .channels_min = 1,
   .channels_max = 4,
   .rates = MTK_HOSTLESS_RATES,
   .formats = MTK_HOSTLESS_FORMATS,
  },
  .ops = &mtk_dai_hostless_ops,
 },
 {
  .name = "Hostless_UL2 DAI",
  .id = MT8186_DAI_HOSTLESS_UL2,
  .capture = {
   .stream_name = "Hostless_UL2 UL",
   .channels_min = 1,
   .channels_max = 4,
   .rates = MTK_HOSTLESS_RATES,
   .formats = MTK_HOSTLESS_FORMATS,
  },
  .ops = &mtk_dai_hostless_ops,
 },
 {
  .name = "Hostless_UL3 DAI",
  .id = MT8186_DAI_HOSTLESS_UL3,
  .capture = {
   .stream_name = "Hostless_UL3 UL",
   .channels_min = 1,
   .channels_max = 2,
   .rates = MTK_HOSTLESS_RATES,
   .formats = MTK_HOSTLESS_FORMATS,
  },
  .ops = &mtk_dai_hostless_ops,
 },
 {
  .name = "Hostless_UL5 DAI",
  .id = MT8186_DAI_HOSTLESS_UL5,
  .capture = {
   .stream_name = "Hostless_UL5 UL",
   .channels_min = 1,
   .channels_max = 12,
   .rates = MTK_HOSTLESS_RATES,
   .formats = MTK_HOSTLESS_FORMATS,
  },
  .ops = &mtk_dai_hostless_ops,
 },
 {
  .name = "Hostless_UL6 DAI",
  .id = MT8186_DAI_HOSTLESS_UL6,
  .capture = {
   .stream_name = "Hostless_UL6 UL",
   .channels_min = 1,
   .channels_max = 2,
   .rates = MTK_HOSTLESS_RATES,
   .formats = MTK_HOSTLESS_FORMATS,
  },
  .ops = &mtk_dai_hostless_ops,
 },
 {
  .name = "Hostless HW Gain AAudio DAI",
  .id = MT8186_DAI_HOSTLESS_HW_GAIN_AAUDIO,
  .capture = {
   .stream_name = "Hostless HW Gain AAudio In",
   .channels_min = 1,
   .channels_max = 2,
   .rates = MTK_HOSTLESS_RATES,
   .formats = MTK_HOSTLESS_FORMATS,
  },
  .ops = &mtk_dai_hostless_ops,
 },
 {
  .name = "Hostless SRC AAudio DAI",
  .id = MT8186_DAI_HOSTLESS_SRC_AAUDIO,
  .playback = {
   .stream_name = "Hostless SRC AAudio DL",
   .channels_min = 1,
   .channels_max = 2,
   .rates = MTK_HOSTLESS_RATES,
   .formats = MTK_HOSTLESS_FORMATS,
  },
  .capture = {
   .stream_name = "Hostless SRC AAudio UL",
   .channels_min = 1,
   .channels_max = 2,
   .rates = MTK_HOSTLESS_RATES,
   .formats = MTK_HOSTLESS_FORMATS,
  },
  .ops = &mtk_dai_hostless_ops,
 },
};

int mt8186_dai_hostless_register(struct mtk_base_afe *afe)
{
 struct mtk_base_afe_dai *dai;

 dai = devm_kzalloc(afe->dev, sizeof(*dai), GFP_KERNEL);
 if (!dai)
  return -ENOMEM;

 list_add(&dai->list, &afe->sub_dais);

 dai->dai_drivers = mtk_dai_hostless_driver;
 dai->num_dai_drivers = ARRAY_SIZE(mtk_dai_hostless_driver);

 dai->dapm_routes = mtk_dai_hostless_routes;
 dai->num_dapm_routes = ARRAY_SIZE(mtk_dai_hostless_routes);

 return 0;
}