// SPDX-License-Identifier: GPL-2.0-only /* * wm8900.c -- WM8900 ALSA Soc Audio driver * * Copyright 2007, 2008 Wolfson Microelectronics PLC. * * Author: Mark Brown <[email protected]> * * TODO: * - Tristating. * - TDM. * - Jack detect. * - FLL source configuration, currently only MCLK is supported. */ #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/kernel.h> #include <linux/init.h> #include <linux/delay.h> #include <linux/pm.h> #include <linux/i2c.h> #include <linux/regmap.h> #include <linux/spi/spi.h> #include <linux/slab.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/pcm_params.h> #include <sound/soc.h> #include <sound/initval.h> #include <sound/tlv.h> #include "wm8900.h" /* WM8900 register space */ #define WM8900_REG_RESET … #define WM8900_REG_ID … #define WM8900_REG_POWER1 … #define WM8900_REG_POWER2 … #define WM8900_REG_POWER3 … #define WM8900_REG_AUDIO1 … #define WM8900_REG_AUDIO2 … #define WM8900_REG_CLOCKING1 … #define WM8900_REG_CLOCKING2 … #define WM8900_REG_AUDIO3 … #define WM8900_REG_AUDIO4 … #define WM8900_REG_DACCTRL … #define WM8900_REG_LDAC_DV … #define WM8900_REG_RDAC_DV … #define WM8900_REG_SIDETONE … #define WM8900_REG_ADCCTRL … #define WM8900_REG_LADC_DV … #define WM8900_REG_RADC_DV … #define WM8900_REG_GPIO … #define WM8900_REG_INCTL … #define WM8900_REG_LINVOL … #define WM8900_REG_RINVOL … #define WM8900_REG_INBOOSTMIX1 … #define WM8900_REG_INBOOSTMIX2 … #define WM8900_REG_ADCPATH … #define WM8900_REG_AUXBOOST … #define WM8900_REG_ADDCTL … #define WM8900_REG_FLLCTL1 … #define WM8900_REG_FLLCTL2 … #define WM8900_REG_FLLCTL3 … #define WM8900_REG_FLLCTL4 … #define WM8900_REG_FLLCTL5 … #define WM8900_REG_FLLCTL6 … #define WM8900_REG_LOUTMIXCTL1 … #define WM8900_REG_ROUTMIXCTL1 … #define WM8900_REG_BYPASS1 … #define WM8900_REG_BYPASS2 … #define WM8900_REG_AUXOUT_CTL … #define WM8900_REG_LOUT1CTL … #define WM8900_REG_ROUT1CTL … #define WM8900_REG_LOUT2CTL … #define WM8900_REG_ROUT2CTL … #define WM8900_REG_HPCTL1 … #define WM8900_REG_OUTBIASCTL … #define WM8900_MAXREG … #define WM8900_REG_ADDCTL_OUT1_DIS … #define WM8900_REG_ADDCTL_OUT2_DIS … #define WM8900_REG_ADDCTL_VMID_DIS … #define WM8900_REG_ADDCTL_BIAS_SRC … #define WM8900_REG_ADDCTL_VMID_SOFTST … #define WM8900_REG_ADDCTL_TEMP_SD … #define WM8900_REG_GPIO_TEMP_ENA … #define WM8900_REG_POWER1_STARTUP_BIAS_ENA … #define WM8900_REG_POWER1_BIAS_ENA … #define WM8900_REG_POWER1_VMID_BUF_ENA … #define WM8900_REG_POWER1_FLL_ENA … #define WM8900_REG_POWER2_SYSCLK_ENA … #define WM8900_REG_POWER2_ADCL_ENA … #define WM8900_REG_POWER2_ADCR_ENA … #define WM8900_REG_POWER3_DACL_ENA … #define WM8900_REG_POWER3_DACR_ENA … #define WM8900_REG_AUDIO1_AIF_FMT_MASK … #define WM8900_REG_AUDIO1_LRCLK_INV … #define WM8900_REG_AUDIO1_BCLK_INV … #define WM8900_REG_CLOCKING1_BCLK_DIR … #define WM8900_REG_CLOCKING1_MCLK_SRC … #define WM8900_REG_CLOCKING1_BCLK_MASK … #define WM8900_REG_CLOCKING1_OPCLK_MASK … #define WM8900_REG_CLOCKING2_ADC_CLKDIV … #define WM8900_REG_CLOCKING2_DAC_CLKDIV … #define WM8900_REG_DACCTRL_MUTE … #define WM8900_REG_DACCTRL_DAC_SB_FILT … #define WM8900_REG_DACCTRL_AIF_LRCLKRATE … #define WM8900_REG_AUDIO3_ADCLRC_DIR … #define WM8900_REG_AUDIO4_DACLRC_DIR … #define WM8900_REG_FLLCTL1_OSC_ENA … #define WM8900_REG_FLLCTL6_FLL_SLOW_LOCK_REF … #define WM8900_REG_HPCTL1_HP_IPSTAGE_ENA … #define WM8900_REG_HPCTL1_HP_OPSTAGE_ENA … #define WM8900_REG_HPCTL1_HP_CLAMP_IP … #define WM8900_REG_HPCTL1_HP_CLAMP_OP … #define WM8900_REG_HPCTL1_HP_SHORT … #define WM8900_REG_HPCTL1_HP_SHORT2 … #define WM8900_LRC_MASK … struct wm8900_priv { … }; /* * wm8900 register cache. We can't read the entire register space and we * have slow control buses so we cache the registers. */ static const struct reg_default wm8900_reg_defaults[] = …; static bool wm8900_volatile_register(struct device *dev, unsigned int reg) { … } static void wm8900_reset(struct snd_soc_component *component) { … } static int wm8900_hp_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { … } static const DECLARE_TLV_DB_SCALE(out_pga_tlv, -5700, 100, 0); static const DECLARE_TLV_DB_SCALE(out_mix_tlv, -1500, 300, 0); static const DECLARE_TLV_DB_SCALE(in_boost_tlv, -1200, 600, 0); static const DECLARE_TLV_DB_SCALE(in_pga_tlv, -1200, 100, 0); static const DECLARE_TLV_DB_SCALE(dac_boost_tlv, 0, 600, 0); static const DECLARE_TLV_DB_SCALE(dac_tlv, -7200, 75, 1); static const DECLARE_TLV_DB_SCALE(adc_svol_tlv, -3600, 300, 0); static const DECLARE_TLV_DB_SCALE(adc_tlv, -7200, 75, 1); static const char *mic_bias_level_txt[] = …; static SOC_ENUM_SINGLE_DECL(mic_bias_level, WM8900_REG_INCTL, 8, mic_bias_level_txt); static const char *dac_mute_rate_txt[] = …; static SOC_ENUM_SINGLE_DECL(dac_mute_rate, WM8900_REG_DACCTRL, 7, dac_mute_rate_txt); static const char *dac_deemphasis_txt[] = …; static SOC_ENUM_SINGLE_DECL(dac_deemphasis, WM8900_REG_DACCTRL, 4, dac_deemphasis_txt); static const char *adc_hpf_cut_txt[] = …; static SOC_ENUM_SINGLE_DECL(adc_hpf_cut, WM8900_REG_ADCCTRL, 5, adc_hpf_cut_txt); static const char *lr_txt[] = …; static SOC_ENUM_SINGLE_DECL(aifl_src, WM8900_REG_AUDIO1, 15, lr_txt); static SOC_ENUM_SINGLE_DECL(aifr_src, WM8900_REG_AUDIO1, 14, lr_txt); static SOC_ENUM_SINGLE_DECL(dacl_src, WM8900_REG_AUDIO2, 15, lr_txt); static SOC_ENUM_SINGLE_DECL(dacr_src, WM8900_REG_AUDIO2, 14, lr_txt); static const char *sidetone_txt[] = …; static SOC_ENUM_SINGLE_DECL(dacl_sidetone, WM8900_REG_SIDETONE, 2, sidetone_txt); static SOC_ENUM_SINGLE_DECL(dacr_sidetone, WM8900_REG_SIDETONE, 0, sidetone_txt); static const struct snd_kcontrol_new wm8900_snd_controls[] = …; static const struct snd_kcontrol_new wm8900_loutmix_controls[] = …; static const struct snd_kcontrol_new wm8900_routmix_controls[] = …; static const struct snd_kcontrol_new wm8900_linmix_controls[] = …; static const struct snd_kcontrol_new wm8900_rinmix_controls[] = …; static const struct snd_kcontrol_new wm8900_linpga_controls[] = …; static const struct snd_kcontrol_new wm8900_rinpga_controls[] = …; static const char *wm8900_lp_mux[] = …; static SOC_ENUM_SINGLE_DECL(wm8900_lineout2_lp_mux, WM8900_REG_LOUTMIXCTL1, 1, wm8900_lp_mux); static const struct snd_kcontrol_new wm8900_lineout2_lp = …; static const struct snd_soc_dapm_widget wm8900_dapm_widgets[] = …; /* Target, Path, Source */ static const struct snd_soc_dapm_route wm8900_dapm_routes[] = …; static int wm8900_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { … } /* FLL divisors */ struct _fll_div { … }; /* The size in bits of the FLL divide multiplied by 10 * to allow rounding later */ #define FIXED_FLL_SIZE … static int fll_factors(struct _fll_div *fll_div, unsigned int Fref, unsigned int Fout) { … } static int wm8900_set_fll(struct snd_soc_component *component, int fll_id, unsigned int freq_in, unsigned int freq_out) { … } static int wm8900_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id, int source, unsigned int freq_in, unsigned int freq_out) { … } static int wm8900_set_dai_clkdiv(struct snd_soc_dai *codec_dai, int div_id, int div) { … } static int wm8900_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) { … } static int wm8900_mute(struct snd_soc_dai *codec_dai, int mute, int direction) { … } #define WM8900_RATES … #define WM8900_PCM_FORMATS … static const struct snd_soc_dai_ops wm8900_dai_ops = …; static struct snd_soc_dai_driver wm8900_dai = …; static int wm8900_set_bias_level(struct snd_soc_component *component, enum snd_soc_bias_level level) { … } static int wm8900_suspend(struct snd_soc_component *component) { … } static int wm8900_resume(struct snd_soc_component *component) { … } static int wm8900_probe(struct snd_soc_component *component) { … } static const struct snd_soc_component_driver soc_component_dev_wm8900 = …; static const struct regmap_config wm8900_regmap = …; #if defined(CONFIG_SPI_MASTER) static int wm8900_spi_probe(struct spi_device *spi) { … } static struct spi_driver wm8900_spi_driver = …; #endif /* CONFIG_SPI_MASTER */ #if IS_ENABLED(CONFIG_I2C) static int wm8900_i2c_probe(struct i2c_client *i2c) { … } static void wm8900_i2c_remove(struct i2c_client *client) { … } static const struct i2c_device_id wm8900_i2c_id[] = …; MODULE_DEVICE_TABLE(i2c, wm8900_i2c_id); static struct i2c_driver wm8900_i2c_driver = …; #endif static int __init wm8900_modinit(void) { … } module_init(…) …; static void __exit wm8900_exit(void) { … } module_exit(wm8900_exit); MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …;
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