// SPDX-License-Identifier: GPL-2.0-or-later /* * TAS571x amplifier audio driver * * Copyright (C) 2015 Google, Inc. * Copyright (c) 2013 Daniel Mack <[email protected]> * * TAS5721 support: * Copyright (C) 2016 Petr Kulhavy, Barix AG <[email protected]> * * TAS5707 support: * Copyright (C) 2018 Jerome Brunet, Baylibre SAS <[email protected]> */ #include <linux/clk.h> #include <linux/delay.h> #include <linux/device.h> #include <linux/gpio/consumer.h> #include <linux/i2c.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/of.h> #include <linux/regmap.h> #include <linux/regulator/consumer.h> #include <linux/stddef.h> #include <sound/pcm_params.h> #include <sound/soc.h> #include <sound/tlv.h> #include <asm/unaligned.h> #include "tas571x.h" #define TAS571X_MAX_SUPPLIES … struct tas571x_chip { … }; struct tas571x_private { … }; static int tas571x_register_size(struct tas571x_private *priv, unsigned int reg) { … } static int tas571x_reg_write(void *context, unsigned int reg, unsigned int value) { … } static int tas571x_reg_read(void *context, unsigned int reg, unsigned int *value) { … } /* * register write for 8- and 20-byte registers */ static int tas571x_reg_write_multiword(struct i2c_client *client, unsigned int reg, const long values[], size_t len) { … } /* * register read for 8- and 20-byte registers */ static int tas571x_reg_read_multiword(struct i2c_client *client, unsigned int reg, long values[], size_t len) { … } /* * Integer array controls for setting biquad, mixer, DRC coefficients. * According to the datasheet each coefficient is effectively 26bits, * i.e. stored as 32bits, where bits [31:26] are ignored. * TI's TAS57xx Graphical Development Environment tool however produces * coefficients with more than 26 bits. For this reason we allow values * in the full 32-bits reange. * The coefficients are ordered as given in the TAS571x data sheet: * b0, b1, b2, a1, a2 */ static int tas571x_coefficient_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { … } static int tas571x_coefficient_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int tas571x_coefficient_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int tas571x_set_dai_fmt(struct snd_soc_dai *dai, unsigned int format) { … } static int tas571x_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { … } static int tas571x_mute(struct snd_soc_dai *dai, int mute, int direction) { … } static int tas571x_set_bias_level(struct snd_soc_component *component, enum snd_soc_bias_level level) { … } static const struct snd_soc_dai_ops tas571x_dai_ops = …; #define BIQUAD_COEFS(xname, reg) … static const char *const tas5711_supply_names[] = …; static const DECLARE_TLV_DB_SCALE(tas5711_volume_tlv, -10350, 50, 1); static const struct snd_kcontrol_new tas5711_controls[] = …; static const struct regmap_range tas571x_readonly_regs_range[] = …; static const struct regmap_range tas571x_volatile_regs_range[] = …; static const struct regmap_access_table tas571x_write_regs = …; static const struct regmap_access_table tas571x_volatile_regs = …; static const struct reg_default tas5711_reg_defaults[] = …; static const struct regmap_config tas5711_regmap_config = …; static const struct tas571x_chip tas5711_chip = …; static const struct regmap_range tas5707_volatile_regs_range[] = …; static const struct regmap_access_table tas5707_volatile_regs = …; static const DECLARE_TLV_DB_SCALE(tas5707_volume_tlv, -7900, 50, 1); static const char * const tas5707_volume_slew_step_txt[] = …; static const unsigned int tas5707_volume_slew_step_values[] = …; static SOC_VALUE_ENUM_SINGLE_DECL(tas5707_volume_slew_step_enum, TAS571X_VOL_CFG_REG, 0, 0x3, tas5707_volume_slew_step_txt, tas5707_volume_slew_step_values); static const struct snd_kcontrol_new tas5707_controls[] = …; static const struct reg_default tas5707_reg_defaults[] = …; static const struct regmap_config tas5707_regmap_config = …; static const struct tas571x_chip tas5707_chip = …; static const char *const tas5717_supply_names[] = …; static const DECLARE_TLV_DB_SCALE(tas5717_volume_tlv, -10375, 25, 0); static const struct snd_kcontrol_new tas5717_controls[] = …; static const struct reg_default tas5717_reg_defaults[] = …; static const struct regmap_config tas5717_regmap_config = …; /* This entry is reused for tas5719 as the software interface is identical. */ static const struct tas571x_chip tas5717_chip = …; static const char *const tas5721_supply_names[] = …; static const struct snd_kcontrol_new tas5721_controls[] = …; static const struct reg_default tas5721_reg_defaults[] = …; static const struct regmap_config tas5721_regmap_config = …; static const char *const tas5733_supply_names[] = …; static const struct reg_default tas5733_reg_defaults[] = …; static const struct regmap_config tas5733_regmap_config = …; static const struct tas571x_chip tas5733_chip = …; static const struct tas571x_chip tas5721_chip = …; static const struct snd_soc_dapm_widget tas571x_dapm_widgets[] = …; static const struct snd_soc_dapm_route tas571x_dapm_routes[] = …; static const struct snd_soc_component_driver tas571x_component = …; static struct snd_soc_dai_driver tas571x_dai = …; static int tas571x_i2c_probe(struct i2c_client *client) { … } static void tas571x_i2c_remove(struct i2c_client *client) { … } static const struct of_device_id tas571x_of_match[] __maybe_unused = …; MODULE_DEVICE_TABLE(of, tas571x_of_match); static const struct i2c_device_id tas571x_i2c_id[] = …; MODULE_DEVICE_TABLE(i2c, tas571x_i2c_id); static struct i2c_driver tas571x_i2c_driver = …; module_i2c_driver(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …;
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