1 // SPDX-License-Identifier: GPL-2.0-only 2 // This file incorporates work covered by the following copyright notice: 3 // Copyright (c) 2024 Intel Corporation 4 // Copyright (c) 2024 Advanced Micro Devices, Inc. 5 6 /* 7 * soc_sdw_bridge_cs35l56 - codec helper functions for handling CS35L56 Smart AMP 8 */ 9 10 #include <linux/module.h> 11 #include <linux/platform_device.h> 12 #include <sound/core.h> 13 #include <sound/pcm.h> 14 #include <sound/pcm_params.h> 15 #include <sound/soc.h> 16 #include <sound/soc-acpi.h> 17 #include <sound/soc_sdw_utils.h> 18 19 static const struct snd_soc_dapm_widget bridge_widgets[] = { 20 SND_SOC_DAPM_SPK("Bridge Speaker", NULL), 21 }; 22 23 static const struct snd_soc_dapm_route bridge_map[] = { 24 {"Bridge Speaker", NULL, "AMPL SPK"}, 25 {"Bridge Speaker", NULL, "AMPR SPK"}, 26 }; 27 28 static const char * const bridge_cs35l56_name_prefixes[] = { 29 "AMPL", 30 "AMPR", 31 }; 32 33 static int asoc_sdw_bridge_cs35l56_asp_init(struct snd_soc_pcm_runtime *rtd) 34 { 35 struct snd_soc_card *card = rtd->card; 36 struct snd_soc_dapm_context *dapm = snd_soc_card_to_dapm(card); 37 int i, ret; 38 unsigned int rx_mask = 3; // ASP RX1, RX2 39 unsigned int tx_mask = 3; // ASP TX1, TX2 40 struct snd_soc_dai *codec_dai; 41 struct snd_soc_dai *cpu_dai; 42 43 card->components = devm_kasprintf(card->dev, GFP_KERNEL, 44 "%s spk:cs35l56-bridge", 45 card->components); 46 if (!card->components) 47 return -ENOMEM; 48 49 ret = snd_soc_dapm_new_controls(dapm, bridge_widgets, 50 ARRAY_SIZE(bridge_widgets)); 51 if (ret) { 52 dev_err(card->dev, "widgets addition failed: %d\n", ret); 53 return ret; 54 } 55 56 ret = snd_soc_dapm_add_routes(dapm, bridge_map, ARRAY_SIZE(bridge_map)); 57 if (ret) { 58 dev_err(card->dev, "map addition failed: %d\n", ret); 59 return ret; 60 } 61 62 /* 4 x 16-bit sample slots and FSYNC=48000, BCLK=3.072 MHz */ 63 for_each_rtd_codec_dais(rtd, i, codec_dai) { 64 ret = asoc_sdw_cs35l56_volume_limit(card, codec_dai->component->name_prefix); 65 if (ret) 66 return ret; 67 68 ret = snd_soc_dai_set_tdm_slot(codec_dai, tx_mask, rx_mask, 4, 16); 69 if (ret < 0) 70 return ret; 71 72 ret = snd_soc_dai_set_sysclk(codec_dai, 0, 3072000, SND_SOC_CLOCK_IN); 73 if (ret < 0) 74 return ret; 75 } 76 77 for_each_rtd_cpu_dais(rtd, i, cpu_dai) { 78 ret = snd_soc_dai_set_tdm_slot(cpu_dai, tx_mask, rx_mask, 4, 16); 79 if (ret < 0) 80 return ret; 81 } 82 83 return 0; 84 } 85 86 static const struct snd_soc_pcm_stream asoc_sdw_bridge_params = { 87 .formats = SNDRV_PCM_FMTBIT_S16_LE, 88 .rate_min = 48000, 89 .rate_max = 48000, 90 .channels_min = 2, 91 .channels_max = 2, 92 }; 93 94 SND_SOC_DAILINK_DEFS(asoc_sdw_bridge_dai, 95 DAILINK_COMP_ARRAY(COMP_CODEC("cs42l43-codec", "cs42l43-asp")), 96 DAILINK_COMP_ARRAY(COMP_CODEC("spi-cs35l56-left", "cs35l56-asp1"), 97 COMP_CODEC("spi-cs35l56-right", "cs35l56-asp1")), 98 DAILINK_COMP_ARRAY(COMP_PLATFORM("cs42l43-codec"))); 99 100 static const struct snd_soc_dai_link bridge_dai_template = { 101 .name = "cs42l43-cs35l56", 102 .init = asoc_sdw_bridge_cs35l56_asp_init, 103 .c2c_params = &asoc_sdw_bridge_params, 104 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_IB_IF | SND_SOC_DAIFMT_CBC_CFC, 105 SND_SOC_DAILINK_REG(asoc_sdw_bridge_dai), 106 }; 107 108 int asoc_sdw_bridge_cs35l56_count_sidecar(struct snd_soc_card *card, 109 int *num_dais, int *num_devs) 110 { 111 struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card); 112 113 if (ctx->mc_quirk & SOC_SDW_SIDECAR_AMPS) { 114 (*num_dais)++; 115 (*num_devs) += ARRAY_SIZE(bridge_cs35l56_name_prefixes); 116 } 117 118 return 0; 119 } 120 EXPORT_SYMBOL_NS(asoc_sdw_bridge_cs35l56_count_sidecar, "SND_SOC_SDW_UTILS"); 121 122 int asoc_sdw_bridge_cs35l56_add_sidecar(struct snd_soc_card *card, 123 struct snd_soc_dai_link **dai_links, 124 struct snd_soc_codec_conf **codec_conf) 125 { 126 struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card); 127 128 if (ctx->mc_quirk & SOC_SDW_SIDECAR_AMPS) { 129 **dai_links = bridge_dai_template; 130 131 for (int i = 0; i < ARRAY_SIZE(bridge_cs35l56_name_prefixes); i++) { 132 (*codec_conf)->dlc.name = (*dai_links)->codecs[i].name; 133 (*codec_conf)->name_prefix = bridge_cs35l56_name_prefixes[i]; 134 (*codec_conf)++; 135 } 136 137 (*dai_links)++; 138 } 139 140 return 0; 141 } 142 EXPORT_SYMBOL_NS(asoc_sdw_bridge_cs35l56_add_sidecar, "SND_SOC_SDW_UTILS"); 143 144 int asoc_sdw_bridge_cs35l56_spk_init(struct snd_soc_card *card, 145 struct snd_soc_dai_link *dai_links, 146 struct asoc_sdw_codec_info *info, 147 bool playback) 148 { 149 struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card); 150 151 if (ctx->mc_quirk & SOC_SDW_SIDECAR_AMPS) 152 info->amp_num += ARRAY_SIZE(bridge_cs35l56_name_prefixes); 153 154 return 0; 155 } 156 EXPORT_SYMBOL_NS(asoc_sdw_bridge_cs35l56_spk_init, "SND_SOC_SDW_UTILS"); 157