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 ret = snd_soc_dapm_new_controls(dapm, bridge_widgets, 44 ARRAY_SIZE(bridge_widgets)); 45 if (ret) { 46 dev_err(card->dev, "widgets addition failed: %d\n", ret); 47 return ret; 48 } 49 50 ret = snd_soc_dapm_add_routes(dapm, bridge_map, ARRAY_SIZE(bridge_map)); 51 if (ret) { 52 dev_err(card->dev, "map addition failed: %d\n", ret); 53 return ret; 54 } 55 56 /* 4 x 16-bit sample slots and FSYNC=48000, BCLK=3.072 MHz */ 57 for_each_rtd_codec_dais(rtd, i, codec_dai) { 58 ret = asoc_sdw_cs35l56_volume_limit(card, codec_dai->component->name_prefix); 59 if (ret) 60 return ret; 61 62 ret = snd_soc_dai_set_tdm_slot(codec_dai, tx_mask, rx_mask, 4, 16); 63 if (ret < 0) 64 return ret; 65 66 ret = snd_soc_dai_set_sysclk(codec_dai, 0, 3072000, SND_SOC_CLOCK_IN); 67 if (ret < 0) 68 return ret; 69 } 70 71 for_each_rtd_cpu_dais(rtd, i, cpu_dai) { 72 ret = snd_soc_dai_set_tdm_slot(cpu_dai, tx_mask, rx_mask, 4, 16); 73 if (ret < 0) 74 return ret; 75 } 76 77 return 0; 78 } 79 80 static const struct snd_soc_pcm_stream asoc_sdw_bridge_params = { 81 .formats = SNDRV_PCM_FMTBIT_S16_LE, 82 .rate_min = 48000, 83 .rate_max = 48000, 84 .channels_min = 2, 85 .channels_max = 2, 86 }; 87 88 SND_SOC_DAILINK_DEFS(asoc_sdw_bridge_dai, 89 DAILINK_COMP_ARRAY(COMP_CODEC("cs42l43-codec", "cs42l43-asp")), 90 DAILINK_COMP_ARRAY(COMP_CODEC("spi-cs35l56-left", "cs35l56-asp1"), 91 COMP_CODEC("spi-cs35l56-right", "cs35l56-asp1")), 92 DAILINK_COMP_ARRAY(COMP_PLATFORM("cs42l43-codec"))); 93 94 static const struct snd_soc_dai_link bridge_dai_template = { 95 .name = "cs42l43-cs35l56", 96 .init = asoc_sdw_bridge_cs35l56_asp_init, 97 .c2c_params = &asoc_sdw_bridge_params, 98 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_IB_IF | SND_SOC_DAIFMT_CBC_CFC, 99 SND_SOC_DAILINK_REG(asoc_sdw_bridge_dai), 100 }; 101 102 int asoc_sdw_bridge_cs35l56_count_sidecar(struct asoc_sdw_mc_private *ctx, 103 int *num_dais, int *num_devs) 104 { 105 if (ctx->mc_quirk & SOC_SDW_SIDECAR_AMPS) { 106 (*num_dais)++; 107 (*num_devs) += ARRAY_SIZE(bridge_cs35l56_name_prefixes); 108 } 109 110 return 0; 111 } 112 EXPORT_SYMBOL_NS(asoc_sdw_bridge_cs35l56_count_sidecar, "SND_SOC_SDW_UTILS"); 113 114 int asoc_sdw_bridge_cs35l56_add_sidecar(struct snd_soc_card *card, 115 struct snd_soc_dai_link **dai_links, 116 struct snd_soc_codec_conf **codec_conf) 117 { 118 struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card); 119 120 if (ctx->mc_quirk & SOC_SDW_SIDECAR_AMPS) { 121 **dai_links = bridge_dai_template; 122 123 for (int i = 0; i < ARRAY_SIZE(bridge_cs35l56_name_prefixes); i++) { 124 (*codec_conf)->dlc.name = (*dai_links)->codecs[i].name; 125 (*codec_conf)->name_prefix = bridge_cs35l56_name_prefixes[i]; 126 (*codec_conf)++; 127 } 128 129 (*dai_links)++; 130 } 131 132 return 0; 133 } 134 EXPORT_SYMBOL_NS(asoc_sdw_bridge_cs35l56_add_sidecar, "SND_SOC_SDW_UTILS"); 135 136 int asoc_sdw_bridge_cs35l56_spk_init(struct snd_soc_card *card, 137 struct snd_soc_dai_link *dai_links, 138 struct asoc_sdw_codec_info *info, 139 bool playback) 140 { 141 struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card); 142 143 if (ctx->mc_quirk & SOC_SDW_SIDECAR_AMPS) 144 info->amp_num += ARRAY_SIZE(bridge_cs35l56_name_prefixes); 145 146 return 0; 147 } 148 EXPORT_SYMBOL_NS(asoc_sdw_bridge_cs35l56_spk_init, "SND_SOC_SDW_UTILS"); 149