// SPDX-License-Identifier: GPL-2.0-only // // nau8821.c -- Nuvoton NAU88L21 audio codec driver // // Copyright 2021 Nuvoton Technology Corp. // Author: John Hsu <[email protected]> // Co-author: Seven Lee <[email protected]> // #include <linux/acpi.h> #include <linux/clk.h> #include <linux/delay.h> #include <linux/dmi.h> #include <linux/init.h> #include <linux/i2c.h> #include <linux/module.h> #include <linux/math64.h> #include <linux/regmap.h> #include <linux/slab.h> #include <sound/core.h> #include <sound/initval.h> #include <sound/jack.h> #include <sound/pcm.h> #include <sound/pcm_params.h> #include <sound/soc.h> #include <sound/tlv.h> #include "nau8821.h" #define NAU8821_JD_ACTIVE_HIGH … static int nau8821_quirk; static int quirk_override = …; module_param_named(quirk, quirk_override, uint, 0444); MODULE_PARM_DESC(…) …; #define NAU_FREF_MAX … #define NAU_FVCO_MAX … #define NAU_FVCO_MIN … #define NAU8821_BUTTON … /* the maximum frequency of CLK_ADC and CLK_DAC */ #define CLK_DA_AD_MAX … static int nau8821_configure_sysclk(struct nau8821 *nau8821, int clk_id, unsigned int freq); static bool nau8821_is_jack_inserted(struct regmap *regmap); struct nau8821_fll { … }; struct nau8821_fll_attr { … }; /* scaling for mclk from sysclk_src output */ static const struct nau8821_fll_attr mclk_src_scaling[] = …; /* ratio for input clk freq */ static const struct nau8821_fll_attr fll_ratio[] = …; static const struct nau8821_fll_attr fll_pre_scalar[] = …; /* over sampling rate */ struct nau8821_osr_attr { … }; static const struct nau8821_osr_attr osr_dac_sel[] = …; static const struct nau8821_osr_attr osr_adc_sel[] = …; struct nau8821_dmic_speed { … }; static const struct nau8821_dmic_speed dmic_speed_sel[] = …; static const struct reg_default nau8821_reg_defaults[] = …; static bool nau8821_readable_reg(struct device *dev, unsigned int reg) { … } static bool nau8821_writeable_reg(struct device *dev, unsigned int reg) { … } static bool nau8821_volatile_reg(struct device *dev, unsigned int reg) { … } static int nau8821_biq_coeff_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int nau8821_biq_coeff_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static const char * const nau8821_adc_decimation[] = …; static const struct soc_enum nau8821_adc_decimation_enum = …; static const char * const nau8821_dac_oversampl[] = …; static const struct soc_enum nau8821_dac_oversampl_enum = …; static const char * const nau8821_adc_drc_noise_gate[] = …; static const struct soc_enum nau8821_adc_drc_noise_gate_enum = …; static const char * const nau8821_adc_drc_expansion_slope[] = …; static const struct soc_enum nau8821_adc_drc_expansion_slope_enum = …; static const char * const nau8821_adc_drc_lower_region[] = …; static const struct soc_enum nau8821_adc_drc_lower_region_enum = …; static const char * const nau8821_higher_region[] = …; static const struct soc_enum nau8821_higher_region_enum = …; static const char * const nau8821_limiter_slope[] = …; static const struct soc_enum nau8821_limiter_slope_enum = …; static const char * const nau8821_detection_attack_time[] = …; static const struct soc_enum nau8821_detection_attack_time_enum = …; static const char * const nau8821_detection_release_time[] = …; static const struct soc_enum nau8821_detection_release_time_enum = …; static const char * const nau8821_attack_time[] = …; static const struct soc_enum nau8821_attack_time_enum = …; static const char * const nau8821_decay_time[] = …; static const struct soc_enum nau8821_decay_time_enum = …; static const DECLARE_TLV_DB_MINMAX_MUTE(adc_vol_tlv, -6600, 2400); static const DECLARE_TLV_DB_MINMAX_MUTE(sidetone_vol_tlv, -4200, 0); static const DECLARE_TLV_DB_MINMAX(hp_vol_tlv, -900, 0); static const DECLARE_TLV_DB_SCALE(playback_vol_tlv, -6600, 50, 1); static const DECLARE_TLV_DB_MINMAX(fepga_gain_tlv, -100, 3600); static const DECLARE_TLV_DB_MINMAX_MUTE(crosstalk_vol_tlv, -7000, 2400); static const DECLARE_TLV_DB_MINMAX(drc_knee4_tlv, -9800, -3500); static const DECLARE_TLV_DB_MINMAX(drc_knee3_tlv, -8100, -1800); static const struct snd_kcontrol_new nau8821_controls[] = …; static const struct snd_kcontrol_new nau8821_dmic_mode_switch = …; static int dmic_clock_control(struct snd_soc_dapm_widget *w, struct snd_kcontrol *k, int event) { … } static int nau8821_left_adc_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { … } static int nau8821_right_adc_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { … } static int nau8821_pump_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { … } static int nau8821_output_dac_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { … } static int system_clock_control(struct snd_soc_dapm_widget *w, struct snd_kcontrol *k, int event) { … } static int nau8821_left_fepga_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { … } static const struct snd_soc_dapm_widget nau8821_dapm_widgets[] = …; static const struct snd_soc_dapm_route nau8821_dapm_routes[] = …; static const struct nau8821_osr_attr * nau8821_get_osr(struct nau8821 *nau8821, int stream) { … } static int nau8821_dai_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { … } static int nau8821_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { … } static int nau8821_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) { … } static int nau8821_digital_mute(struct snd_soc_dai *dai, int mute, int direction) { … } static const struct snd_soc_dai_ops nau8821_dai_ops = …; #define NAU8821_RATES … #define NAU8821_FORMATS … static struct snd_soc_dai_driver nau8821_dai = …; static bool nau8821_is_jack_inserted(struct regmap *regmap) { … } static void nau8821_int_status_clear_all(struct regmap *regmap) { … } static void nau8821_eject_jack(struct nau8821 *nau8821) { … } static void nau8821_jdet_work(struct work_struct *work) { … } /* Enable interruptions with internal clock. */ static void nau8821_setup_inserted_irq(struct nau8821 *nau8821) { … } static irqreturn_t nau8821_interrupt(int irq, void *data) { … } static const struct regmap_config nau8821_regmap_config = …; static int nau8821_component_probe(struct snd_soc_component *component) { … } /** * nau8821_calc_fll_param - Calculate FLL parameters. * @fll_in: external clock provided to codec. * @fs: sampling rate. * @fll_param: Pointer to structure of FLL parameters. * * Calculate FLL parameters to configure codec. * * Returns 0 for success or negative error code. */ static int nau8821_calc_fll_param(unsigned int fll_in, unsigned int fs, struct nau8821_fll *fll_param) { … } static void nau8821_fll_apply(struct nau8821 *nau8821, struct nau8821_fll *fll_param) { … } /** * nau8821_set_fll - FLL configuration of nau8821 * @component: codec component * @pll_id: PLL requested * @source: clock source * @freq_in: frequency of input clock source * @freq_out: must be 256*Fs in order to achieve the best performance * * The FLL function can select BCLK or MCLK as the input clock source. * * Returns 0 if the parameters have been applied successfully * or negative error code. */ static int nau8821_set_fll(struct snd_soc_component *component, int pll_id, int source, unsigned int freq_in, unsigned int freq_out) { … } static void nau8821_configure_mclk_as_sysclk(struct regmap *regmap) { … } static int nau8821_configure_sysclk(struct nau8821 *nau8821, int clk_id, unsigned int freq) { … } static int nau8821_set_sysclk(struct snd_soc_component *component, int clk_id, int source, unsigned int freq, int dir) { … } static int nau8821_resume_setup(struct nau8821 *nau8821) { … } static int nau8821_set_bias_level(struct snd_soc_component *component, enum snd_soc_bias_level level) { … } static int __maybe_unused nau8821_suspend(struct snd_soc_component *component) { … } static int __maybe_unused nau8821_resume(struct snd_soc_component *component) { … } static const struct snd_soc_component_driver nau8821_component_driver = …; /** * nau8821_enable_jack_detect - Specify a jack for event reporting * * @component: component to register the jack with * @jack: jack to use to report headset and button events on * * After this function has been called the headset insert/remove and button * events will be routed to the given jack. Jack can be null to stop * reporting. */ int nau8821_enable_jack_detect(struct snd_soc_component *component, struct snd_soc_jack *jack) { … } EXPORT_SYMBOL_GPL(…); static void nau8821_reset_chip(struct regmap *regmap) { … } static void nau8821_print_device_properties(struct nau8821 *nau8821) { … } static int nau8821_read_device_properties(struct device *dev, struct nau8821 *nau8821) { … } static void nau8821_init_regs(struct nau8821 *nau8821) { … } static int nau8821_setup_irq(struct nau8821 *nau8821) { … } /* Please keep this list alphabetically sorted */ static const struct dmi_system_id nau8821_quirk_table[] = …; static void nau8821_check_quirks(void) { … } static int nau8821_i2c_probe(struct i2c_client *i2c) { … } static const struct i2c_device_id nau8821_i2c_ids[] = …; MODULE_DEVICE_TABLE(i2c, nau8821_i2c_ids); #ifdef CONFIG_OF static const struct of_device_id nau8821_of_ids[] = …; MODULE_DEVICE_TABLE(of, nau8821_of_ids); #endif #ifdef CONFIG_ACPI static const struct acpi_device_id nau8821_acpi_match[] = …; MODULE_DEVICE_TABLE(acpi, nau8821_acpi_match); #endif static struct i2c_driver nau8821_driver = …; module_i2c_driver(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …;
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