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 int i, ret; 37 unsigned int rx_mask = 3; // ASP RX1, RX2 38 unsigned int tx_mask = 3; // ASP TX1, TX2 39 struct snd_soc_dai *codec_dai; 40 struct snd_soc_dai *cpu_dai; 41 42 card->components = devm_kasprintf(card->dev, GFP_KERNEL, 43 "%s spk:cs35l56-bridge", 44 card->components); 45 if (!card->components) 46 return -ENOMEM; 47 48 ret = snd_soc_dapm_new_controls(&card->dapm, bridge_widgets, 49 ARRAY_SIZE(bridge_widgets)); 50 if (ret) { 51 dev_err(card->dev, "widgets addition failed: %d\n", ret); 52 return ret; 53 } 54 55 ret = snd_soc_dapm_add_routes(&card->dapm, bridge_map, ARRAY_SIZE(bridge_map)); 56 if (ret) { 57 dev_err(card->dev, "map addition failed: %d\n", ret); 58 return ret; 59 } 60 61 /* 4 x 16-bit sample slots and FSYNC=48000, BCLK=3.072 MHz */ 62 for_each_rtd_codec_dais(rtd, i, codec_dai) { 63 ret = snd_soc_dai_set_tdm_slot(codec_dai, tx_mask, rx_mask, 4, 16); 64 if (ret < 0) 65 return ret; 66 67 ret = snd_soc_dai_set_sysclk(codec_dai, 0, 3072000, SND_SOC_CLOCK_IN); 68 if (ret < 0) 69 return ret; 70 } 71 72 for_each_rtd_cpu_dais(rtd, i, cpu_dai) { 73 ret = snd_soc_dai_set_tdm_slot(cpu_dai, tx_mask, rx_mask, 4, 16); 74 if (ret < 0) 75 return ret; 76 } 77 78 return 0; 79 } 80 81 static const struct snd_soc_pcm_stream asoc_sdw_bridge_params = { 82 .formats = SNDRV_PCM_FMTBIT_S16_LE, 83 .rate_min = 48000, 84 .rate_max = 48000, 85 .channels_min = 2, 86 .channels_max = 2, 87 }; 88 89 SND_SOC_DAILINK_DEFS(asoc_sdw_bridge_dai, 90 DAILINK_COMP_ARRAY(COMP_CODEC("cs42l43-codec", "cs42l43-asp")), 91 DAILINK_COMP_ARRAY(COMP_CODEC("spi-cs35l56-left", "cs35l56-asp1"), 92 COMP_CODEC("spi-cs35l56-right", "cs35l56-asp1")), 93 DAILINK_COMP_ARRAY(COMP_PLATFORM("cs42l43-codec"))); 94 95 static const struct snd_soc_dai_link bridge_dai_template = { 96 .name = "cs42l43-cs35l56", 97 .init = asoc_sdw_bridge_cs35l56_asp_init, 98 .c2c_params = &asoc_sdw_bridge_params, 99 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_IB_IF | SND_SOC_DAIFMT_CBC_CFC, 100 SND_SOC_DAILINK_REG(asoc_sdw_bridge_dai), 101 }; 102 103 int asoc_sdw_bridge_cs35l56_count_sidecar(struct snd_soc_card *card, 104 int *num_dais, int *num_devs) 105 { 106 struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card); 107 108 if (ctx->mc_quirk & SOC_SDW_SIDECAR_AMPS) { 109 (*num_dais)++; 110 (*num_devs) += ARRAY_SIZE(bridge_cs35l56_name_prefixes); 111 } 112 113 return 0; 114 } 115 EXPORT_SYMBOL_NS(asoc_sdw_bridge_cs35l56_count_sidecar, SND_SOC_SDW_UTILS); 116 117 int asoc_sdw_bridge_cs35l56_add_sidecar(struct snd_soc_card *card, 118 struct snd_soc_dai_link **dai_links, 119 struct snd_soc_codec_conf **codec_conf) 120 { 121 struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card); 122 123 if (ctx->mc_quirk & SOC_SDW_SIDECAR_AMPS) { 124 **dai_links = bridge_dai_template; 125 126 for (int i = 0; i < ARRAY_SIZE(bridge_cs35l56_name_prefixes); i++) { 127 (*codec_conf)->dlc.name = (*dai_links)->codecs[i].name; 128 (*codec_conf)->name_prefix = bridge_cs35l56_name_prefixes[i]; 129 (*codec_conf)++; 130 } 131 132 (*dai_links)++; 133 } 134 135 return 0; 136 } 137 EXPORT_SYMBOL_NS(asoc_sdw_bridge_cs35l56_add_sidecar, SND_SOC_SDW_UTILS); 138 139 int asoc_sdw_bridge_cs35l56_spk_init(struct snd_soc_card *card, 140 struct snd_soc_dai_link *dai_links, 141 struct asoc_sdw_codec_info *info, 142 bool playback) 143 { 144 struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card); 145 146 if (ctx->mc_quirk & SOC_SDW_SIDECAR_AMPS) 147 info->amp_num += ARRAY_SIZE(bridge_cs35l56_name_prefixes); 148 149 return 0; 150 } 151 EXPORT_SYMBOL_NS(asoc_sdw_bridge_cs35l56_spk_init, SND_SOC_SDW_UTILS); 152