diff options
Diffstat (limited to 'sound/soc/sdw_utils/soc_sdw_bridge_cs35l56.c')
-rw-r--r-- | sound/soc/sdw_utils/soc_sdw_bridge_cs35l56.c | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/sound/soc/sdw_utils/soc_sdw_bridge_cs35l56.c b/sound/soc/sdw_utils/soc_sdw_bridge_cs35l56.c new file mode 100644 index 000000000000..fcc3ef685af7 --- /dev/null +++ b/sound/soc/sdw_utils/soc_sdw_bridge_cs35l56.c @@ -0,0 +1,151 @@ +// SPDX-License-Identifier: GPL-2.0-only +// This file incorporates work covered by the following copyright notice: +// Copyright (c) 2024 Intel Corporation +// Copyright (c) 2024 Advanced Micro Devices, Inc. + +/* + * soc_sdw_bridge_cs35l56 - codec helper functions for handling CS35L56 Smart AMP + */ + +#include <linux/module.h> +#include <linux/platform_device.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/soc-acpi.h> +#include <sound/soc_sdw_utils.h> + +static const struct snd_soc_dapm_widget bridge_widgets[] = { + SND_SOC_DAPM_SPK("Bridge Speaker", NULL), +}; + +static const struct snd_soc_dapm_route bridge_map[] = { + {"Bridge Speaker", NULL, "AMPL SPK"}, + {"Bridge Speaker", NULL, "AMPR SPK"}, +}; + +static const char * const bridge_cs35l56_name_prefixes[] = { + "AMPL", + "AMPR", +}; + +static int asoc_sdw_bridge_cs35l56_asp_init(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_card *card = rtd->card; + int i, ret; + unsigned int rx_mask = 3; // ASP RX1, RX2 + unsigned int tx_mask = 3; // ASP TX1, TX2 + struct snd_soc_dai *codec_dai; + struct snd_soc_dai *cpu_dai; + + card->components = devm_kasprintf(card->dev, GFP_KERNEL, + "%s spk:cs35l56-bridge", + card->components); + if (!card->components) + return -ENOMEM; + + ret = snd_soc_dapm_new_controls(&card->dapm, bridge_widgets, + ARRAY_SIZE(bridge_widgets)); + if (ret) { + dev_err(card->dev, "widgets addition failed: %d\n", ret); + return ret; + } + + ret = snd_soc_dapm_add_routes(&card->dapm, bridge_map, ARRAY_SIZE(bridge_map)); + if (ret) { + dev_err(card->dev, "map addition failed: %d\n", ret); + return ret; + } + + /* 4 x 16-bit sample slots and FSYNC=48000, BCLK=3.072 MHz */ + for_each_rtd_codec_dais(rtd, i, codec_dai) { + ret = snd_soc_dai_set_tdm_slot(codec_dai, tx_mask, rx_mask, 4, 16); + if (ret < 0) + return ret; + + ret = snd_soc_dai_set_sysclk(codec_dai, 0, 3072000, SND_SOC_CLOCK_IN); + if (ret < 0) + return ret; + } + + for_each_rtd_cpu_dais(rtd, i, cpu_dai) { + ret = snd_soc_dai_set_tdm_slot(cpu_dai, tx_mask, rx_mask, 4, 16); + if (ret < 0) + return ret; + } + + return 0; +} + +static const struct snd_soc_pcm_stream asoc_sdw_bridge_params = { + .formats = SNDRV_PCM_FMTBIT_S16_LE, + .rate_min = 48000, + .rate_max = 48000, + .channels_min = 2, + .channels_max = 2, +}; + +SND_SOC_DAILINK_DEFS(asoc_sdw_bridge_dai, + DAILINK_COMP_ARRAY(COMP_CODEC("cs42l43-codec", "cs42l43-asp")), + DAILINK_COMP_ARRAY(COMP_CODEC("spi-cs35l56-left", "cs35l56-asp1"), + COMP_CODEC("spi-cs35l56-right", "cs35l56-asp1")), + DAILINK_COMP_ARRAY(COMP_PLATFORM("cs42l43-codec"))); + +static const struct snd_soc_dai_link bridge_dai_template = { + .name = "cs42l43-cs35l56", + .init = asoc_sdw_bridge_cs35l56_asp_init, + .c2c_params = &asoc_sdw_bridge_params, + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_IB_IF | SND_SOC_DAIFMT_CBC_CFC, + SND_SOC_DAILINK_REG(asoc_sdw_bridge_dai), +}; + +int asoc_sdw_bridge_cs35l56_count_sidecar(struct snd_soc_card *card, + int *num_dais, int *num_devs) +{ + struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card); + + if (ctx->mc_quirk & SOC_SDW_SIDECAR_AMPS) { + (*num_dais)++; + (*num_devs) += ARRAY_SIZE(bridge_cs35l56_name_prefixes); + } + + return 0; +} +EXPORT_SYMBOL_NS(asoc_sdw_bridge_cs35l56_count_sidecar, SND_SOC_SDW_UTILS); + +int asoc_sdw_bridge_cs35l56_add_sidecar(struct snd_soc_card *card, + struct snd_soc_dai_link **dai_links, + struct snd_soc_codec_conf **codec_conf) +{ + struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card); + + if (ctx->mc_quirk & SOC_SDW_SIDECAR_AMPS) { + **dai_links = bridge_dai_template; + + for (int i = 0; i < ARRAY_SIZE(bridge_cs35l56_name_prefixes); i++) { + (*codec_conf)->dlc.name = (*dai_links)->codecs[i].name; + (*codec_conf)->name_prefix = bridge_cs35l56_name_prefixes[i]; + (*codec_conf)++; + } + + (*dai_links)++; + } + + return 0; +} +EXPORT_SYMBOL_NS(asoc_sdw_bridge_cs35l56_add_sidecar, SND_SOC_SDW_UTILS); + +int asoc_sdw_bridge_cs35l56_spk_init(struct snd_soc_card *card, + struct snd_soc_dai_link *dai_links, + struct asoc_sdw_codec_info *info, + bool playback) +{ + struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card); + + if (ctx->mc_quirk & SOC_SDW_SIDECAR_AMPS) + info->amp_num += ARRAY_SIZE(bridge_cs35l56_name_prefixes); + + return 0; +} +EXPORT_SYMBOL_NS(asoc_sdw_bridge_cs35l56_spk_init, SND_SOC_SDW_UTILS); |