// SPDX-License-Identifier: GPL-2.0-or-later /* * CS4271 ASoC codec driver * * Copyright (c) 2010 Alexander Sverdlin <[email protected]> * * This driver support CS4271 codec being master or slave, working * in control port mode, connected either via SPI or I2C. * The data format accepted is I2S or left-justified. * DAPM support not implemented. */ #include <linux/module.h> #include <linux/slab.h> #include <linux/delay.h> #include <linux/gpio/consumer.h> #include <linux/of.h> #include <linux/regulator/consumer.h> #include <sound/pcm.h> #include <sound/soc.h> #include <sound/tlv.h> #include <sound/cs4271.h> #include "cs4271.h" #define CS4271_PCM_FORMATS … #define CS4271_PCM_RATES … /* * CS4271 registers */ #define CS4271_MODE1 … #define CS4271_DACCTL … #define CS4271_DACVOL … #define CS4271_VOLA … #define CS4271_VOLB … #define CS4271_ADCCTL … #define CS4271_MODE2 … #define CS4271_CHIPID … #define CS4271_FIRSTREG … #define CS4271_LASTREG … #define CS4271_NR_REGS … /* Bit masks for the CS4271 registers */ #define CS4271_MODE1_MODE_MASK … #define CS4271_MODE1_MODE_1X … #define CS4271_MODE1_MODE_2X … #define CS4271_MODE1_MODE_4X … #define CS4271_MODE1_DIV_MASK … #define CS4271_MODE1_DIV_1 … #define CS4271_MODE1_DIV_15 … #define CS4271_MODE1_DIV_2 … #define CS4271_MODE1_DIV_3 … #define CS4271_MODE1_MASTER … #define CS4271_MODE1_DAC_DIF_MASK … #define CS4271_MODE1_DAC_DIF_LJ … #define CS4271_MODE1_DAC_DIF_I2S … #define CS4271_MODE1_DAC_DIF_RJ16 … #define CS4271_MODE1_DAC_DIF_RJ24 … #define CS4271_MODE1_DAC_DIF_RJ20 … #define CS4271_MODE1_DAC_DIF_RJ18 … #define CS4271_DACCTL_AMUTE … #define CS4271_DACCTL_IF_SLOW … #define CS4271_DACCTL_DEM_MASK … #define CS4271_DACCTL_DEM_DIS … #define CS4271_DACCTL_DEM_441 … #define CS4271_DACCTL_DEM_48 … #define CS4271_DACCTL_DEM_32 … #define CS4271_DACCTL_SVRU … #define CS4271_DACCTL_SRD … #define CS4271_DACCTL_INVA … #define CS4271_DACCTL_INVB … #define CS4271_DACVOL_BEQUA … #define CS4271_DACVOL_SOFT … #define CS4271_DACVOL_ZEROC … #define CS4271_DACVOL_ATAPI_MASK … #define CS4271_DACVOL_ATAPI_M_M … #define CS4271_DACVOL_ATAPI_M_BR … #define CS4271_DACVOL_ATAPI_M_BL … #define CS4271_DACVOL_ATAPI_M_BLR2 … #define CS4271_DACVOL_ATAPI_AR_M … #define CS4271_DACVOL_ATAPI_AR_BR … #define CS4271_DACVOL_ATAPI_AR_BL … #define CS4271_DACVOL_ATAPI_AR_BLR2 … #define CS4271_DACVOL_ATAPI_AL_M … #define CS4271_DACVOL_ATAPI_AL_BR … #define CS4271_DACVOL_ATAPI_AL_BL … #define CS4271_DACVOL_ATAPI_AL_BLR2 … #define CS4271_DACVOL_ATAPI_ALR2_M … #define CS4271_DACVOL_ATAPI_ALR2_BR … #define CS4271_DACVOL_ATAPI_ALR2_BL … #define CS4271_DACVOL_ATAPI_ALR2_BLR2 … #define CS4271_VOLA_MUTE … #define CS4271_VOLA_VOL_MASK … #define CS4271_VOLB_MUTE … #define CS4271_VOLB_VOL_MASK … #define CS4271_ADCCTL_DITHER16 … #define CS4271_ADCCTL_ADC_DIF_MASK … #define CS4271_ADCCTL_ADC_DIF_LJ … #define CS4271_ADCCTL_ADC_DIF_I2S … #define CS4271_ADCCTL_MUTEA … #define CS4271_ADCCTL_MUTEB … #define CS4271_ADCCTL_HPFDA … #define CS4271_ADCCTL_HPFDB … #define CS4271_MODE2_LOOP … #define CS4271_MODE2_MUTECAEQUB … #define CS4271_MODE2_FREEZE … #define CS4271_MODE2_CPEN … #define CS4271_MODE2_PDN … #define CS4271_CHIPID_PART_MASK … #define CS4271_CHIPID_REV_MASK … /* * Default CS4271 power-up configuration * Array contains non-existing in hw register at address 0 * Array do not include Chip ID, as codec driver does not use * registers read operations at all */ static const struct reg_default cs4271_reg_defaults[] = …; static bool cs4271_volatile_reg(struct device *dev, unsigned int reg) { … } static const char * const supply_names[] = …; struct cs4271_private { … }; static const struct snd_soc_dapm_widget cs4271_dapm_widgets[] = …; static const struct snd_soc_dapm_route cs4271_dapm_routes[] = …; /* * @freq is the desired MCLK rate * MCLK rate should (c) be the sample rate, multiplied by one of the * ratios listed in cs4271_mclk_fs_ratios table */ static int cs4271_set_dai_sysclk(struct snd_soc_dai *codec_dai, int clk_id, unsigned int freq, int dir) { … } static int cs4271_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int format) { … } static int cs4271_deemph[] = …; static int cs4271_set_deemph(struct snd_soc_component *component) { … } static int cs4271_get_deemph(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int cs4271_put_deemph(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } struct cs4271_clk_cfg { … }; static struct cs4271_clk_cfg cs4271_clk_tab[] = …; #define CS4271_NR_RATIOS … static int cs4271_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { … } static int cs4271_mute_stream(struct snd_soc_dai *dai, int mute, int stream) { … } /* CS4271 controls */ static DECLARE_TLV_DB_SCALE(cs4271_dac_tlv, -12700, 100, 0); static const struct snd_kcontrol_new cs4271_snd_controls[] = …; static const struct snd_soc_dai_ops cs4271_dai_ops = …; static struct snd_soc_dai_driver cs4271_dai = …; static int cs4271_reset(struct snd_soc_component *component) { … } #ifdef CONFIG_PM static int cs4271_soc_suspend(struct snd_soc_component *component) { … } static int cs4271_soc_resume(struct snd_soc_component *component) { … } #else #define cs4271_soc_suspend … #define cs4271_soc_resume … #endif /* CONFIG_PM */ #ifdef CONFIG_OF const struct of_device_id cs4271_dt_ids[] = …; MODULE_DEVICE_TABLE(of, cs4271_dt_ids); EXPORT_SYMBOL_GPL(…); #endif static int cs4271_component_probe(struct snd_soc_component *component) { … } static void cs4271_component_remove(struct snd_soc_component *component) { struct cs4271_private *cs4271 = snd_soc_component_get_drvdata(component); /* Set codec to the reset state */ gpiod_set_value(cs4271->reset, 1); regcache_mark_dirty(cs4271->regmap); regulator_bulk_disable(ARRAY_SIZE(cs4271->supplies), cs4271->supplies); }; static const struct snd_soc_component_driver soc_component_dev_cs4271 = …; static int cs4271_common_probe(struct device *dev, struct cs4271_private **c) { … } const struct regmap_config cs4271_regmap_config = …; EXPORT_SYMBOL_GPL(…); int cs4271_probe(struct device *dev, struct regmap *regmap) { … } EXPORT_SYMBOL_GPL(…); MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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