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1// SPDX-License-Identifier: GPL-2.0-only2// This file incorporates work covered by the following copyright notice:3// Copyright (c) 2024 Intel Corporation4// Copyright (c) 2024 Advanced Micro Devices, Inc.5 6/*7 * soc_sdw_bridge_cs35l56 - codec helper functions for handling CS35L56 Smart AMP8 */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 19static const struct snd_soc_dapm_widget bridge_widgets[] = {20 SND_SOC_DAPM_SPK("Bridge Speaker", NULL),21};22 23static const struct snd_soc_dapm_route bridge_map[] = {24 {"Bridge Speaker", NULL, "AMPL SPK"},25 {"Bridge Speaker", NULL, "AMPR SPK"},26};27 28static const char * const bridge_cs35l56_name_prefixes[] = {29 "AMPL",30 "AMPR",31};32 33static 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, RX238 unsigned int tx_mask = 3; // ASP TX1, TX239 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 81static 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 89SND_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 95static 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 103int 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}115EXPORT_SYMBOL_NS(asoc_sdw_bridge_cs35l56_count_sidecar, SND_SOC_SDW_UTILS);116 117int 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}137EXPORT_SYMBOL_NS(asoc_sdw_bridge_cs35l56_add_sidecar, SND_SOC_SDW_UTILS);138 139int 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}151EXPORT_SYMBOL_NS(asoc_sdw_bridge_cs35l56_spk_init, SND_SOC_SDW_UTILS);152