// SPDX-License-Identifier: GPL-2.0-only /* * NAU88L24 ALSA SoC audio driver * * Copyright 2016 Nuvoton Technology Corp. * Author: John Hsu <[email protected]> */ #include <linux/module.h> #include <linux/delay.h> #include <linux/dmi.h> #include <linux/init.h> #include <linux/i2c.h> #include <linux/regmap.h> #include <linux/slab.h> #include <linux/clk.h> #include <linux/acpi.h> #include <linux/math64.h> #include <linux/semaphore.h> #include <sound/initval.h> #include <sound/tlv.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/pcm_params.h> #include <sound/soc.h> #include <sound/jack.h> #include "nau8824.h" #define NAU8824_JD_ACTIVE_HIGH … #define NAU8824_MONO_SPEAKER … static int nau8824_quirk; static int quirk_override = …; module_param_named(quirk, quirk_override, uint, 0444); MODULE_PARM_DESC(…) …; static int nau8824_config_sysclk(struct nau8824 *nau8824, int clk_id, unsigned int freq); static bool nau8824_is_jack_inserted(struct nau8824 *nau8824); /* the ADC threshold of headset */ #define DMIC_CLK … /* the ADC threshold of headset */ #define HEADSET_SARADC_THD … /* the parameter threshold of FLL */ #define NAU_FREF_MAX … #define NAU_FVCO_MAX … #define NAU_FVCO_MIN … /* scaling for mclk from sysclk_src output */ static const struct nau8824_fll_attr mclk_src_scaling[] = …; /* ratio for input clk freq */ static const struct nau8824_fll_attr fll_ratio[] = …; static const struct nau8824_fll_attr fll_pre_scalar[] = …; /* the maximum frequency of CLK_ADC and CLK_DAC */ #define CLK_DA_AD_MAX … /* over sampling rate */ static const struct nau8824_osr_attr osr_dac_sel[] = …; static const struct nau8824_osr_attr osr_adc_sel[] = …; static const struct reg_default nau8824_reg_defaults[] = …; static int nau8824_sema_acquire(struct nau8824 *nau8824, long timeout) { … } static inline void nau8824_sema_release(struct nau8824 *nau8824) { … } static bool nau8824_readable_reg(struct device *dev, unsigned int reg) { … } static bool nau8824_writeable_reg(struct device *dev, unsigned int reg) { … } static bool nau8824_volatile_reg(struct device *dev, unsigned int reg) { … } static const char * const nau8824_companding[] = …; static const struct soc_enum nau8824_companding_adc_enum = …; static const struct soc_enum nau8824_companding_dac_enum = …; static const char * const nau8824_adc_decimation[] = …; static const struct soc_enum nau8824_adc_decimation_enum = …; static const char * const nau8824_dac_oversampl[] = …; static const struct soc_enum nau8824_dac_oversampl_enum = …; static const char * const nau8824_input_channel[] = …; static const struct soc_enum nau8824_adc_ch0_enum = …; static const struct soc_enum nau8824_adc_ch1_enum = …; static const struct soc_enum nau8824_adc_ch2_enum = …; static const struct soc_enum nau8824_adc_ch3_enum = …; static const char * const nau8824_tdm_slot[] = …; static const struct soc_enum nau8824_dac_left_sel_enum = …; static const struct soc_enum nau8824_dac_right_sel_enum = …; static const DECLARE_TLV_DB_MINMAX_MUTE(spk_vol_tlv, 0, 2400); static const DECLARE_TLV_DB_MINMAX(hp_vol_tlv, -3000, 0); static const DECLARE_TLV_DB_SCALE(mic_vol_tlv, 0, 200, 0); static const DECLARE_TLV_DB_SCALE(dmic_vol_tlv, -12800, 50, 0); static const struct snd_kcontrol_new nau8824_snd_controls[] = …; static int nau8824_output_dac_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { … } static int nau8824_spk_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { … } static int nau8824_pump_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 dmic_clock_control(struct snd_soc_dapm_widget *w, struct snd_kcontrol *k, int event) { … } static const struct snd_kcontrol_new nau8824_adc_ch0_dmic = …; static const struct snd_kcontrol_new nau8824_adc_ch1_dmic = …; static const struct snd_kcontrol_new nau8824_adc_ch2_dmic = …; static const struct snd_kcontrol_new nau8824_adc_ch3_dmic = …; static const struct snd_kcontrol_new nau8824_adc_left_mixer[] = …; static const struct snd_kcontrol_new nau8824_adc_right_mixer[] = …; static const struct snd_kcontrol_new nau8824_hp_left_mixer[] = …; static const struct snd_kcontrol_new nau8824_hp_right_mixer[] = …; static const char * const nau8824_dac_src[] = …; static SOC_ENUM_SINGLE_DECL( nau8824_dacl_enum, NAU8824_REG_DAC_CH0_DGAIN_CTRL, NAU8824_DAC_CH0_SEL_SFT, nau8824_dac_src); static SOC_ENUM_SINGLE_DECL( nau8824_dacr_enum, NAU8824_REG_DAC_CH1_DGAIN_CTRL, NAU8824_DAC_CH1_SEL_SFT, nau8824_dac_src); static const struct snd_kcontrol_new nau8824_dacl_mux = …; static const struct snd_kcontrol_new nau8824_dacr_mux = …; static const struct snd_soc_dapm_widget nau8824_dapm_widgets[] = …; static const struct snd_soc_dapm_route nau8824_dapm_routes[] = …; static bool nau8824_is_jack_inserted(struct nau8824 *nau8824) { … } static void nau8824_int_status_clear_all(struct regmap *regmap) { … } static void nau8824_eject_jack(struct nau8824 *nau8824) { … } static void nau8824_jdet_work(struct work_struct *work) { … } static void nau8824_setup_auto_irq(struct nau8824 *nau8824) { … } static int nau8824_button_decode(int value) { … } #define NAU8824_BUTTONS … static irqreturn_t nau8824_interrupt(int irq, void *data) { … } static const struct nau8824_osr_attr * nau8824_get_osr(struct nau8824 *nau8824, int stream) { … } static int nau8824_dai_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { … } static int nau8824_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { … } static int nau8824_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) { … } /** * nau8824_set_tdm_slot - configure DAI TDM. * @dai: DAI * @tx_mask: Bitmask representing active TX slots. Ex. * 0xf for normal 4 channel TDM. * 0xf0 for shifted 4 channel TDM * @rx_mask: Bitmask [0:1] representing active DACR RX slots. * Bitmask [2:3] representing active DACL RX slots. * 00=CH0,01=CH1,10=CH2,11=CH3. Ex. * 0xf for DACL/R selecting TDM CH3. * 0xf0 for DACL/R selecting shifted TDM CH3. * @slots: Number of slots in use. * @slot_width: Width in bits for each slot. * * Configures a DAI for TDM operation. Only support 4 slots TDM. */ static int nau8824_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) { … } /** * nau8824_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 nau8824_calc_fll_param(unsigned int fll_in, unsigned int fs, struct nau8824_fll *fll_param) { … } static void nau8824_fll_apply(struct regmap *regmap, struct nau8824_fll *fll_param) { … } /* freq_out must be 256*Fs in order to achieve the best performance */ static int nau8824_set_pll(struct snd_soc_component *component, int pll_id, int source, unsigned int freq_in, unsigned int freq_out) { … } static int nau8824_config_sysclk(struct nau8824 *nau8824, int clk_id, unsigned int freq) { … } static int nau8824_set_sysclk(struct snd_soc_component *component, int clk_id, int source, unsigned int freq, int dir) { … } static void nau8824_resume_setup(struct nau8824 *nau8824) { … } static int nau8824_set_bias_level(struct snd_soc_component *component, enum snd_soc_bias_level level) { … } static int nau8824_component_probe(struct snd_soc_component *component) { … } static int __maybe_unused nau8824_suspend(struct snd_soc_component *component) { … } static int __maybe_unused nau8824_resume(struct snd_soc_component *component) { … } static const struct snd_soc_component_driver nau8824_component_driver = …; static const struct snd_soc_dai_ops nau8824_dai_ops = …; #define NAU8824_RATES … #define NAU8824_FORMATS … static struct snd_soc_dai_driver nau8824_dai = …; static const struct regmap_config nau8824_regmap_config = …; /** * nau8824_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 nau8824_enable_jack_detect(struct snd_soc_component *component, struct snd_soc_jack *jack) { … } EXPORT_SYMBOL_GPL(…); static void nau8824_reset_chip(struct regmap *regmap) { … } static void nau8824_setup_buttons(struct nau8824 *nau8824) { … } static void nau8824_init_regs(struct nau8824 *nau8824) { … } static int nau8824_setup_irq(struct nau8824 *nau8824) { … } static void nau8824_print_device_properties(struct nau8824 *nau8824) { … } static int nau8824_read_device_properties(struct device *dev, struct nau8824 *nau8824) { … } /* Please keep this list alphabetically sorted */ static const struct dmi_system_id nau8824_quirk_table[] = …; static void nau8824_check_quirks(void) { … } const char *nau8824_components(void) { … } EXPORT_SYMBOL_GPL(…); static int nau8824_i2c_probe(struct i2c_client *i2c) { … } static const struct i2c_device_id nau8824_i2c_ids[] = …; MODULE_DEVICE_TABLE(i2c, nau8824_i2c_ids); #ifdef CONFIG_OF static const struct of_device_id nau8824_of_ids[] = …; MODULE_DEVICE_TABLE(of, nau8824_of_ids); #endif #ifdef CONFIG_ACPI static const struct acpi_device_id nau8824_acpi_match[] = …; MODULE_DEVICE_TABLE(acpi, nau8824_acpi_match); #endif static struct i2c_driver nau8824_i2c_driver = …; module_i2c_driver(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …;
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