sound/soc/intel/boards/sof_cirrus_common.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * This file defines data structures and functions used in Machine
   4  * Driver for Intel platforms with Cirrus Logic Codecs.
   5  *
   6  * Copyright 2022 Intel Corporation.
   7  */
   8 #include <linux/module.h>
   9 #include <sound/sof.h>
  10 #include "../../codecs/cs35l41.h"
  11 #include "sof_cirrus_common.h"
  12
  13 /*
  14  * Cirrus Logic CS35L41/CS35L53
  15  */
  16 static const struct snd_kcontrol_new cs35l41_kcontrols[] = {
  17         SOC_DAPM_PIN_SWITCH("WL Spk"),
  18         SOC_DAPM_PIN_SWITCH("WR Spk"),
  19         SOC_DAPM_PIN_SWITCH("TL Spk"),
  20         SOC_DAPM_PIN_SWITCH("TR Spk"),
  21 };
  22
  23 static const struct snd_soc_dapm_widget cs35l41_dapm_widgets[] = {
  24         SND_SOC_DAPM_SPK("WL Spk", NULL),
  25         SND_SOC_DAPM_SPK("WR Spk", NULL),
  26         SND_SOC_DAPM_SPK("TL Spk", NULL),
  27         SND_SOC_DAPM_SPK("TR Spk", NULL),
  28 };
  29
  30 static const struct snd_soc_dapm_route cs35l41_dapm_routes[] = {
  31         /* speaker */
  32         {"WL Spk", NULL, "WL SPK"},
  33         {"WR Spk", NULL, "WR SPK"},
  34         {"TL Spk", NULL, "TL SPK"},
  35         {"TR Spk", NULL, "TR SPK"},
  36 };
  37
  38 static struct snd_soc_dai_link_component cs35l41_components[] = {
  39         {
  40                 .name = CS35L41_DEV0_NAME,
  41                 .dai_name = CS35L41_CODEC_DAI,
  42         },
  43         {
  44                 .name = CS35L41_DEV1_NAME,
  45                 .dai_name = CS35L41_CODEC_DAI,
  46         },
  47         {
  48                 .name = CS35L41_DEV2_NAME,
  49                 .dai_name = CS35L41_CODEC_DAI,
  50         },
  51         {
  52                 .name = CS35L41_DEV3_NAME,
  53                 .dai_name = CS35L41_CODEC_DAI,
  54         },
  55 };
  56
  57 /*
  58  * Mapping between ACPI instance id and speaker position.
  59  *
  60  * Four speakers:
  61  *         0: Tweeter left, 1: Woofer left
  62  *         2: Tweeter right, 3: Woofer right
  63  */
  64 static struct snd_soc_codec_conf cs35l41_codec_conf[] = {
  65         {
  66                 .dlc = COMP_CODEC_CONF(CS35L41_DEV0_NAME),
  67                 .name_prefix = "TL",
  68         },
  69         {
  70                 .dlc = COMP_CODEC_CONF(CS35L41_DEV1_NAME),
  71                 .name_prefix = "WL",
  72         },
  73         {
  74                 .dlc = COMP_CODEC_CONF(CS35L41_DEV2_NAME),
  75                 .name_prefix = "TR",
  76         },
  77         {
  78                 .dlc = COMP_CODEC_CONF(CS35L41_DEV3_NAME),
  79                 .name_prefix = "WR",
  80         },
  81 };
  82
  83 static int cs35l41_init(struct snd_soc_pcm_runtime *rtd)
  84 {
  85         struct snd_soc_card *card = rtd->card;
  86         int ret;
  87
  88         ret = snd_soc_dapm_new_controls(&card->dapm, cs35l41_dapm_widgets,
  89                                         ARRAY_SIZE(cs35l41_dapm_widgets));
  90         if (ret) {
  91                 dev_err(rtd->dev, "fail to add dapm controls, ret %d\n", ret);
  92                 return ret;
  93         }
  94
  95         ret = snd_soc_add_card_controls(card, cs35l41_kcontrols,
  96                                         ARRAY_SIZE(cs35l41_kcontrols));
  97         if (ret) {
  98                 dev_err(rtd->dev, "fail to add card controls, ret %d\n", ret);
  99                 return ret;
 100         }
 101
 102         ret = snd_soc_dapm_add_routes(&card->dapm, cs35l41_dapm_routes,
 103                                       ARRAY_SIZE(cs35l41_dapm_routes));
 104
 105         if (ret)
 106                 dev_err(rtd->dev, "fail to add dapm routes, ret %d\n", ret);
 107
 108         return ret;
 109 }
 110
 111 /*
 112  * Channel map:
 113  *
 114  * TL/WL: ASPRX1 on slot 0, ASPRX2 on slot 1 (default)
 115  * TR/WR: ASPRX1 on slot 1, ASPRX2 on slot 0
 116  */
 117 static const struct {
 118         unsigned int rx[2];
 119 } cs35l41_channel_map[] = {
 120         {.rx = {0, 1}}, /* TL */
 121         {.rx = {0, 1}}, /* WL */
 122         {.rx = {1, 0}}, /* TR */
 123         {.rx = {1, 0}}, /* WR */
 124 };
 125
 126 static int cs35l41_hw_params(struct snd_pcm_substream *substream,
 127                              struct snd_pcm_hw_params *params)
 128 {
 129         struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 130         struct snd_soc_dai *codec_dai;
 131         int clk_freq, i, ret;
 132
 133         clk_freq = sof_dai_get_bclk(rtd); /* BCLK freq */
 134
 135         if (clk_freq <= 0) {
 136                 dev_err(rtd->dev, "fail to get bclk freq, ret %d\n", clk_freq);
 137                 return -EINVAL;
 138         }
 139
 140         for_each_rtd_codec_dais(rtd, i, codec_dai) {
 141                 /* call dai driver's set_sysclk() callback */
 142                 ret = snd_soc_dai_set_sysclk(codec_dai, CS35L41_CLKID_SCLK,
 143                                              clk_freq, SND_SOC_CLOCK_IN);
 144                 if (ret < 0) {
 145                         dev_err(codec_dai->dev, "fail to set sysclk, ret %d\n",
 146                                 ret);
 147                         return ret;
 148                 }
 149
 150                 /* call component driver's set_sysclk() callback */
 151                 ret = snd_soc_component_set_sysclk(codec_dai->component,
 152                                                    CS35L41_CLKID_SCLK, 0,
 153                                                    clk_freq, SND_SOC_CLOCK_IN);
 154                 if (ret < 0) {
 155                         dev_err(codec_dai->dev, "fail to set component sysclk, ret %d\n",
 156                                 ret);
 157                         return ret;
 158                 }
 159
 160                 /* setup channel map */
 161                 ret = snd_soc_dai_set_channel_map(codec_dai, 0, NULL,
 162                                                   ARRAY_SIZE(cs35l41_channel_map[i].rx),
 163                                                   (unsigned int *)cs35l41_channel_map[i].rx);
 164                 if (ret < 0) {
 165                         dev_err(codec_dai->dev, "fail to set channel map, ret %d\n",
 166                                 ret);
 167                         return ret;
 168                 }
 169         }
 170
 171         return 0;
 172 }
 173
 174 static const struct snd_soc_ops cs35l41_ops = {
 175         .hw_params = cs35l41_hw_params,
 176 };
 177
 178 void cs35l41_set_dai_link(struct snd_soc_dai_link *link)
 179 {
 180         link->codecs = cs35l41_components;
 181         link->num_codecs = ARRAY_SIZE(cs35l41_components);
 182         link->init = cs35l41_init;
 183         link->ops = &cs35l41_ops;
 184 }
 185 EXPORT_SYMBOL_NS(cs35l41_set_dai_link, SND_SOC_INTEL_SOF_CIRRUS_COMMON);
 186
 187 void cs35l41_set_codec_conf(struct snd_soc_card *card)
 188 {
 189         card->codec_conf = cs35l41_codec_conf;
 190         card->num_configs = ARRAY_SIZE(cs35l41_codec_conf);
 191 }
 192 EXPORT_SYMBOL_NS(cs35l41_set_codec_conf, SND_SOC_INTEL_SOF_CIRRUS_COMMON);
 193
 194 MODULE_DESCRIPTION("ASoC Intel SOF Cirrus Logic helpers");
 195 MODULE_LICENSE("GPL");