// SPDX-License-Identifier: GPL-2.0-only /* * wm8988.c -- WM8988 ALSA SoC audio driver * * Copyright 2009 Wolfson Microelectronics plc * Copyright 2005 Openedhand Ltd. * * Author: Mark Brown <[email protected]> */ #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/init.h> #include <linux/delay.h> #include <linux/pm.h> #include <linux/i2c.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/tlv.h> #include <sound/soc.h> #include <sound/initval.h> #include "wm8988.h" /* * wm8988 register cache * We can't read the WM8988 register space when we * are using 2 wire for device control, so we cache them instead. */ static const struct reg_default wm8988_reg_defaults[] = …; static bool wm8988_writeable(struct device *dev, unsigned int reg) { … } /* codec private data */ struct wm8988_priv { … }; #define wm8988_reset(c) … /* * WM8988 Controls */ static const char *bass_boost_txt[] = …; static SOC_ENUM_SINGLE_DECL(bass_boost, WM8988_BASS, 7, bass_boost_txt); static const char *bass_filter_txt[] = …; static SOC_ENUM_SINGLE_DECL(bass_filter, WM8988_BASS, 6, bass_filter_txt); static const char *treble_txt[] = …; static SOC_ENUM_SINGLE_DECL(treble, WM8988_TREBLE, 6, treble_txt); static const char *stereo_3d_lc_txt[] = …; static SOC_ENUM_SINGLE_DECL(stereo_3d_lc, WM8988_3D, 5, stereo_3d_lc_txt); static const char *stereo_3d_uc_txt[] = …; static SOC_ENUM_SINGLE_DECL(stereo_3d_uc, WM8988_3D, 6, stereo_3d_uc_txt); static const char *stereo_3d_func_txt[] = …; static SOC_ENUM_SINGLE_DECL(stereo_3d_func, WM8988_3D, 7, stereo_3d_func_txt); static const char *alc_func_txt[] = …; static SOC_ENUM_SINGLE_DECL(alc_func, WM8988_ALC1, 7, alc_func_txt); static const char *ng_type_txt[] = …; static SOC_ENUM_SINGLE_DECL(ng_type, WM8988_NGATE, 1, ng_type_txt); static const char *deemph_txt[] = …; static SOC_ENUM_SINGLE_DECL(deemph, WM8988_ADCDAC, 1, deemph_txt); static const char *adcpol_txt[] = …; static SOC_ENUM_SINGLE_DECL(adcpol, WM8988_ADCDAC, 5, adcpol_txt); static const DECLARE_TLV_DB_SCALE(pga_tlv, -1725, 75, 0); static const DECLARE_TLV_DB_SCALE(adc_tlv, -9750, 50, 1); static const DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1); static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1); static const DECLARE_TLV_DB_SCALE(bypass_tlv, -1500, 300, 0); static const struct snd_kcontrol_new wm8988_snd_controls[] = …; /* * DAPM Controls */ static int wm8988_lrc_control(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { … } static const char *wm8988_line_texts[] = …; static const unsigned int wm8988_line_values[] = …; static const struct soc_enum wm8988_lline_enum = …; static const struct snd_kcontrol_new wm8988_left_line_controls = …; static const struct soc_enum wm8988_rline_enum = …; static const struct snd_kcontrol_new wm8988_right_line_controls = …; /* Left Mixer */ static const struct snd_kcontrol_new wm8988_left_mixer_controls[] = …; /* Right Mixer */ static const struct snd_kcontrol_new wm8988_right_mixer_controls[] = …; static const char *wm8988_pga_sel[] = …; static const unsigned int wm8988_pga_val[] = …; /* Left PGA Mux */ static const struct soc_enum wm8988_lpga_enum = …; static const struct snd_kcontrol_new wm8988_left_pga_controls = …; /* Right PGA Mux */ static const struct soc_enum wm8988_rpga_enum = …; static const struct snd_kcontrol_new wm8988_right_pga_controls = …; /* Differential Mux */ static const char *wm8988_diff_sel[] = …; static SOC_ENUM_SINGLE_DECL(diffmux, WM8988_ADCIN, 8, wm8988_diff_sel); static const struct snd_kcontrol_new wm8988_diffmux_controls = …; /* Mono ADC Mux */ static const char *wm8988_mono_mux[] = …; static SOC_ENUM_SINGLE_DECL(monomux, WM8988_ADCIN, 6, wm8988_mono_mux); static const struct snd_kcontrol_new wm8988_monomux_controls = …; static const struct snd_soc_dapm_widget wm8988_dapm_widgets[] = …; static const struct snd_soc_dapm_route wm8988_dapm_routes[] = …; struct _coeff_div { … }; /* codec hifi mclk clock divider coefficients */ static const struct _coeff_div coeff_div[] = …; static inline int get_coeff(int mclk, int rate) { … } /* The set of rates we can generate from the above for each SYSCLK */ static const unsigned int rates_12288[] = …; static const struct snd_pcm_hw_constraint_list constraints_12288 = …; static const unsigned int rates_112896[] = …; static const struct snd_pcm_hw_constraint_list constraints_112896 = …; static const unsigned int rates_12[] = …; static const struct snd_pcm_hw_constraint_list constraints_12 = …; /* * Note that this should be called from init rather than from hw_params. */ static int wm8988_set_dai_sysclk(struct snd_soc_dai *codec_dai, int clk_id, unsigned int freq, int dir) { … } static int wm8988_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) { … } static int wm8988_pcm_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { … } static int wm8988_pcm_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { … } static int wm8988_mute(struct snd_soc_dai *dai, int mute, int direction) { … } static int wm8988_set_bias_level(struct snd_soc_component *component, enum snd_soc_bias_level level) { … } #define WM8988_RATES … #define WM8988_FORMATS … static const struct snd_soc_dai_ops wm8988_ops = …; static struct snd_soc_dai_driver wm8988_dai = …; static int wm8988_probe(struct snd_soc_component *component) { … } static const struct snd_soc_component_driver soc_component_dev_wm8988 = …; static const struct regmap_config wm8988_regmap = …; #if defined(CONFIG_SPI_MASTER) static int wm8988_spi_probe(struct spi_device *spi) { … } static struct spi_driver wm8988_spi_driver = …; #endif /* CONFIG_SPI_MASTER */ #if IS_ENABLED(CONFIG_I2C) static int wm8988_i2c_probe(struct i2c_client *i2c) { … } static const struct i2c_device_id wm8988_i2c_id[] = …; MODULE_DEVICE_TABLE(i2c, wm8988_i2c_id); static struct i2c_driver wm8988_i2c_driver = …; #endif static int __init wm8988_modinit(void) { … } module_init(…) …; static void __exit wm8988_exit(void) { … } module_exit(wm8988_exit); MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …;
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