// SPDX-License-Identifier: GPL-2.0-only /* * es8311.c -- es8311 ALSA SoC audio driver * * Copyright (C) 2024 Matteo Martelli <[email protected]> * * Author: Matteo Martelli <[email protected]> */ #include "linux/array_size.h" #include "sound/pcm.h" #include <linux/clk.h> #include <linux/i2c.h> #include <linux/module.h> #include <linux/regmap.h> #include <sound/core.h> #include <sound/pcm_params.h> #include <sound/soc.h> #include <sound/tlv.h> #include "es8311.h" #define ES8311_NUM_RATES … #define ES8311_RATES … #define ES8311_FORMATS … struct es8311_priv { … }; static const DECLARE_TLV_DB_SCALE(es8311_adc_vol_tlv, -9550, 50, 0); static const DECLARE_TLV_DB_SCALE(es8311_pga_gain_tlv, 0, 300, 0); static const DECLARE_TLV_DB_SCALE(es8311_adc_scale_tlv, 0, 600, 0); #define ES8311_DB_LRCK_STEPS … static const char *const es8311_level_winsize_txt[] = …; static SOC_ENUM_SINGLE_DECL( es8311_alc_winsize, ES8311_ADC4, ES8311_ADC4_ALC_WINSIZE_SHIFT, es8311_level_winsize_txt); static const DECLARE_TLV_DB_RANGE(es8311_level_tlv, 0, 1, TLV_DB_SCALE_ITEM(-3010, 600, 0), 2, 3, TLV_DB_SCALE_ITEM(-2060, 250, 0), 4, 5, TLV_DB_SCALE_ITEM(-1610, 160, 0), 6, 7, TLV_DB_SCALE_ITEM(-1320, 120, 0), 8, 9, TLV_DB_SCALE_ITEM(-1100, 90, 0), 10, 11, TLV_DB_SCALE_ITEM(-930, 80, 0), 12, 15, TLV_DB_SCALE_ITEM(-780, 60, 0), ); static const char *const es8311_ramprate_txt[] = …; static SOC_ENUM_SINGLE_DECL( es8311_adc_ramprate, ES8311_ADC1, ES8311_ADC1_RAMPRATE_SHIFT, es8311_ramprate_txt); static const char *const es8311_automute_winsize_txt[] = …; static SOC_ENUM_SINGLE_DECL( es8311_automute_winsize, ES8311_ADC6, ES8311_ADC6_AUTOMUTE_WS_SHIFT, es8311_automute_winsize_txt); static const DECLARE_TLV_DB_RANGE(es8311_automute_ng_tlv, 0, 7, TLV_DB_SCALE_ITEM(-9600, 600, 0), 8, 15, TLV_DB_SCALE_ITEM(-5100, 300, 0), ); static const DECLARE_TLV_DB_SCALE(es8311_automute_vol_tlv, -2800, 400, 0); static const DECLARE_TLV_DB_SCALE(es8311_dac_vol_tlv, -9550, 50, 0); static SOC_ENUM_SINGLE_DECL( es8311_drc_winsize, ES8311_DAC4, ES8311_DAC4_DRC_WINSIZE_SHIFT, es8311_level_winsize_txt); static SOC_ENUM_SINGLE_DECL( es8311_dac_ramprate, ES8311_DAC6, ES8311_DAC6_RAMPRATE_SHIFT, es8311_ramprate_txt); static const char *const es8311_out_mode_txt[] = …; static SOC_ENUM_SINGLE_DECL( es8311_out_mode, ES8311_SYS9, ES8311_SYS9_HPSW_SHIFT, es8311_out_mode_txt); static const struct snd_kcontrol_new es8311_snd_controls[] = …; static const char *const es8311_diff_src_txt[] = …; static SOC_ENUM_SINGLE_DECL( es8311_diff_src_enum, ES8311_SYS10, ES8311_SYS10_LINESEL_SHIFT, es8311_diff_src_txt); static const struct snd_kcontrol_new es8311_diff_src_mux = …; static const char *const es8311_dmic_src_txt[] = …; static SOC_ENUM_SINGLE_DECL( es8311_dmic_src_enum, ES8311_SYS10, ES8311_SYS10_DMIC_ON_SHIFT, es8311_dmic_src_txt); static const struct snd_kcontrol_new es8311_dmic_src_mux = …; static const char * const es8311_aif1tx_src_txt[] = …; static SOC_ENUM_SINGLE_DECL( es8311_aif1tx_src_enum, ES8311_GPIO, ES8311_GPIO_ADCDAT_SEL_SHIFT, es8311_aif1tx_src_txt); static const struct snd_kcontrol_new es8311_aif1tx_src_mux = …; static const char * const es8311_dac_src_txt[] = …; static SOC_ENUM_SINGLE_DECL( es8311_dac_src_enum, ES8311_SDP_IN, ES8311_SDP_IN_SEL_SHIFT, es8311_dac_src_txt); static const struct snd_kcontrol_new es8311_dac_src_mux = …; static const struct snd_soc_dapm_widget es8311_dapm_widgets[] = …; static const struct snd_soc_dapm_route es8311_dapm_routes[] = …; /* Bit clock divider values: * from 1 to 20: the register takes the div value - 1 * above 20: the register takes the corresponding idx of the div value * in the following table + 20 */ #define ES8311_BCLK_DIV_IDX_OFFSET … static const unsigned int es8311_bclk_divs[] = …; struct es8311_mclk_coeff { … }; #define ES8311_MCLK_MAX_FREQ … /* Coefficients for common master clock frequencies based on clock table from * documentation. Limited to have a ratio of adc (or dac) clock to lrclk equal * to 256. This to keep the default adc and dac oversampling and adc scale * settings. Internal mclk dividers and multipliers are dynamically adjusted to * support, respectively, multiples (up to x8) and factors (/2,4,8) of listed * mclks frequencies (see es8311_cmp_adj_mclk_coeff). * All rates are supported when mclk/rate ratio is 32, 64, 128, 256, 384 or 512 * (upper limit due to max mclk freq of 49.2MHz). */ static const struct es8311_mclk_coeff es8311_mclk_coeffs[] = …; /* Compare coeff with provided mclk_freq and adjust it if needed. * If frequencies match, return 0 and the unaltered coeff copy into out_coeff. * If mclk_freq is a valid multiple or factor of coeff mclk freq, return 0 and * the adjusted coeff copy into out_coeff. * Return -EINVAL otherwise. */ static int es8311_cmp_adj_mclk_coeff(unsigned int mclk_freq, const struct es8311_mclk_coeff *coeff, struct es8311_mclk_coeff *out_coeff) { … } static int es8311_get_mclk_coeff(unsigned int mclk_freq, unsigned int rate, struct es8311_mclk_coeff *out_coeff) { … } static void es8311_set_sysclk_constraints(unsigned int mclk_freq, struct es8311_priv *es8311) { … } static int es8311_mute(struct snd_soc_dai *dai, int mute, int direction) { … } static int es8311_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { … } static int es8311_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { … } static int es8311_set_sysclk(struct snd_soc_dai *codec_dai, int clk_id, unsigned int freq, int dir) { … } static int es8311_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) { … } static int es8311_set_bias_level(struct snd_soc_component *component, enum snd_soc_bias_level level) { … } static const struct snd_soc_dai_ops es8311_dai_ops = …; static struct snd_soc_dai_driver es8311_dai = …; static void es8311_reset(struct snd_soc_component *component, bool reset) { … } static int es8311_suspend(struct snd_soc_component *component) { … } static int es8311_resume(struct snd_soc_component *component) { … } static int es8311_component_probe(struct snd_soc_component *component) { … } static const struct regmap_config es8311_regmap_config = …; static const struct snd_soc_component_driver es8311_component_driver = …; static int es8311_i2c_probe(struct i2c_client *i2c_client) { … } static const struct i2c_device_id es8311_id[] = …; MODULE_DEVICE_TABLE(i2c, es8311_id); static const struct of_device_id es8311_of_match[] = …; MODULE_DEVICE_TABLE(of, es8311_of_match); static struct i2c_driver es8311_i2c_driver = …; module_i2c_driver(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …;
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