// SPDX-License-Identifier: GPL-2.0-only /* * cs53l30.c -- CS53l30 ALSA Soc Audio driver * * Copyright 2015 Cirrus Logic, Inc. * * Authors: Paul Handrigan <[email protected]>, * Tim Howe <[email protected]> */ #include <linux/clk.h> #include <linux/delay.h> #include <linux/i2c.h> #include <linux/module.h> #include <linux/gpio/consumer.h> #include <linux/regulator/consumer.h> #include <sound/pcm_params.h> #include <sound/soc.h> #include <sound/tlv.h> #include "cs53l30.h" #include "cirrus_legacy.h" #define CS53L30_NUM_SUPPLIES … static const char *const cs53l30_supply_names[CS53L30_NUM_SUPPLIES] = …; struct cs53l30_private { … }; static const struct reg_default cs53l30_reg_defaults[] = …; static bool cs53l30_volatile_register(struct device *dev, unsigned int reg) { … } static bool cs53l30_writeable_register(struct device *dev, unsigned int reg) { … } static bool cs53l30_readable_register(struct device *dev, unsigned int reg) { … } static DECLARE_TLV_DB_SCALE(adc_boost_tlv, 0, 2000, 0); static DECLARE_TLV_DB_SCALE(adc_ng_boost_tlv, 0, 3000, 0); static DECLARE_TLV_DB_SCALE(pga_tlv, -600, 50, 0); static DECLARE_TLV_DB_SCALE(dig_tlv, -9600, 100, 1); static DECLARE_TLV_DB_SCALE(pga_preamp_tlv, 0, 10000, 0); static const char * const input1_sel_text[] = …; static unsigned int const input1_sel_values[] = …; static const char * const input2_sel_text[] = …; static unsigned int const input2_sel_values[] = …; static const char * const input1_route_sel_text[] = …; static const struct soc_enum input1_route_sel_enum = …; static SOC_VALUE_ENUM_SINGLE_DECL(input1_sel_enum, CS53L30_ADCDMIC1_CTL1, 0, CS53L30_ADCDMICx_PDN_MASK, input1_sel_text, input1_sel_values); static const struct snd_kcontrol_new input1_route_sel_mux = …; static const char * const input2_route_sel_text[] = …; /* Note: CS53L30_ADCDMIC1_CTL1 CH_TYPE controls inputs 1 and 2 */ static const struct soc_enum input2_route_sel_enum = …; static SOC_VALUE_ENUM_SINGLE_DECL(input2_sel_enum, CS53L30_ADCDMIC2_CTL1, 0, CS53L30_ADCDMICx_PDN_MASK, input2_sel_text, input2_sel_values); static const struct snd_kcontrol_new input2_route_sel_mux = …; /* * TB = 6144*(MCLK(int) scaling factor)/MCLK(internal) * TB - Time base * NOTE: If MCLK_INT_SCALE = 0, then TB=1 */ static const char * const cs53l30_ng_delay_text[] = …; static const struct soc_enum adc1_ng_delay_enum = …; static const struct soc_enum adc2_ng_delay_enum = …; /* The noise gate threshold selected will depend on NG Boost */ static const char * const cs53l30_ng_thres_text[] = …; static const struct soc_enum adc1_ng_thres_enum = …; static const struct soc_enum adc2_ng_thres_enum = …; /* Corner frequencies are with an Fs of 48kHz. */ static const char * const hpf_corner_freq_text[] = …; static const struct soc_enum adc1_hpf_enum = …; static const struct soc_enum adc2_hpf_enum = …; static const struct snd_kcontrol_new cs53l30_snd_controls[] = …; static const struct snd_soc_dapm_widget cs53l30_dapm_widgets[] = …; static const struct snd_soc_dapm_route cs53l30_dapm_routes[] = …; static const struct snd_soc_dapm_route cs53l30_dapm_routes_sdout1[] = …; static const struct snd_soc_dapm_route cs53l30_dapm_routes_sdout2[] = …; struct cs53l30_mclk_div { … }; static const struct cs53l30_mclk_div cs53l30_mclk_coeffs[] = …; struct cs53l30_mclkx_div { … }; static const struct cs53l30_mclkx_div cs53l30_mclkx_coeffs[] = …; static int cs53l30_get_mclkx_coeff(int mclkx) { … } static int cs53l30_get_mclk_coeff(int mclk_rate, int srate) { … } static int cs53l30_set_sysclk(struct snd_soc_dai *dai, int clk_id, unsigned int freq, int dir) { … } static int cs53l30_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt) { … } static int cs53l30_pcm_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { … } static int cs53l30_set_bias_level(struct snd_soc_component *component, enum snd_soc_bias_level level) { … } static int cs53l30_set_tristate(struct snd_soc_dai *dai, int tristate) { … } static unsigned int const cs53l30_src_rates[] = …; static const struct snd_pcm_hw_constraint_list src_constraints = …; static int cs53l30_pcm_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { … } /* * Note: CS53L30 counts the slot number per byte while ASoC counts the slot * number per slot_width. So there is a difference between the slots of ASoC * and the slots of CS53L30. */ static int cs53l30_set_dai_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) { … } static int cs53l30_mute_stream(struct snd_soc_dai *dai, int mute, int stream) { … } /* SNDRV_PCM_RATE_KNOT -> 12000, 24000 Hz, limit with constraint list */ #define CS53L30_RATES … #define CS53L30_FORMATS … static const struct snd_soc_dai_ops cs53l30_ops = …; static struct snd_soc_dai_driver cs53l30_dai = …; static int cs53l30_component_probe(struct snd_soc_component *component) { … } static const struct snd_soc_component_driver cs53l30_driver = …; static const struct regmap_config cs53l30_regmap = …; static int cs53l30_i2c_probe(struct i2c_client *client) { … } static void cs53l30_i2c_remove(struct i2c_client *client) { … } #ifdef CONFIG_PM static int cs53l30_runtime_suspend(struct device *dev) { … } static int cs53l30_runtime_resume(struct device *dev) { … } #endif static const struct dev_pm_ops cs53l30_runtime_pm = …; static const struct of_device_id cs53l30_of_match[] = …; MODULE_DEVICE_TABLE(of, cs53l30_of_match); static const struct i2c_device_id cs53l30_id[] = …; MODULE_DEVICE_TABLE(i2c, cs53l30_id); static struct i2c_driver cs53l30_i2c_driver = …; module_i2c_driver(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …;
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