// SPDX-License-Identifier: GPL-2.0 // // ak4642.c -- AK4642/AK4643 ALSA Soc Audio driver // // Copyright (C) 2009 Renesas Solutions Corp. // Kuninori Morimoto <[email protected]> // // Based on wm8731.c by Richard Purdie // Based on ak4535.c by Richard Purdie // Based on wm8753.c by Liam Girdwood /* ** CAUTION ** * * This is very simple driver. * It can use headphone output / stereo input only * * AK4642 is tested. * AK4643 is tested. * AK4648 is tested. */ #include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/delay.h> #include <linux/i2c.h> #include <linux/slab.h> #include <linux/of.h> #include <linux/module.h> #include <linux/regmap.h> #include <sound/soc.h> #include <sound/initval.h> #include <sound/tlv.h> #define PW_MGMT1 … #define PW_MGMT2 … #define SG_SL1 … #define SG_SL2 … #define MD_CTL1 … #define MD_CTL2 … #define TIMER … #define ALC_CTL1 … #define ALC_CTL2 … #define L_IVC … #define L_DVC … #define ALC_CTL3 … #define R_IVC … #define R_DVC … #define MD_CTL3 … #define MD_CTL4 … #define PW_MGMT3 … #define DF_S … #define FIL3_0 … #define FIL3_1 … #define FIL3_2 … #define FIL3_3 … #define EQ_0 … #define EQ_1 … #define EQ_2 … #define EQ_3 … #define EQ_4 … #define EQ_5 … #define FIL1_0 … #define FIL1_1 … #define FIL1_2 … #define FIL1_3 … #define PW_MGMT4 … #define MD_CTL5 … #define LO_MS … #define HP_MS … #define SPK_MS … #define EQ_FBEQAB … #define EQ_FBEQCD … #define EQ_FBEQE … /* PW_MGMT1*/ #define PMVCM … #define PMMIN … #define PMDAC … #define PMADL … /* PW_MGMT2 */ #define HPMTN … #define PMHPL … #define PMHPR … #define MS … #define MCKO … #define PMPLL … #define PMHP_MASK … #define PMHP … /* PW_MGMT3 */ #define PMADR … /* SG_SL1 */ #define MINS … #define DACL … #define PMMP … #define MGAIN0 … /* SG_SL2 */ #define LOPS … /* TIMER */ #define ZTM(param) … #define WTM(param) … /* ALC_CTL1 */ #define ALC … #define LMTH0 … /* MD_CTL1 */ #define PLL3 … #define PLL2 … #define PLL1 … #define PLL0 … #define PLL_MASK … #define BCKO_MASK … #define BCKO_64 … #define DIF_MASK … #define DSP … #define RIGHT_J … #define LEFT_J … #define I2S … /* MD_CTL2 */ #define FSs(val) … #define PSs(val) … /* MD_CTL3 */ #define BST1 … /* MD_CTL4 */ #define DACH … struct ak4642_drvdata { … }; struct ak4642_priv { … }; /* * Playback Volume (table 39) * * max : 0x00 : +12.0 dB * ( 0.5 dB step ) * min : 0xFE : -115.0 dB * mute: 0xFF */ static const DECLARE_TLV_DB_SCALE(out_tlv, -11550, 50, 1); static const struct snd_kcontrol_new ak4642_snd_controls[] = …; static const struct snd_kcontrol_new ak4642_headphone_control = …; static const struct snd_kcontrol_new ak4642_lout_mixer_controls[] = …; /* event handlers */ static int ak4642_lout_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { … } static const struct snd_soc_dapm_widget ak4642_dapm_widgets[] = …; static const struct snd_soc_dapm_route ak4642_intercon[] = …; /* * ak4642 register cache */ static const struct reg_default ak4643_reg[] = …; /* The default settings for 0x0 ~ 0x1f registers are the same for ak4642 and ak4643. So we reuse the ak4643 reg_default for ak4642. The valid registers for ak4642 are 0x0 ~ 0x1f which is a subset of ak4643, so define NUM_AK4642_REG_DEFAULTS for ak4642. */ #define ak4642_reg … #define NUM_AK4642_REG_DEFAULTS … static const struct reg_default ak4648_reg[] = …; static int ak4642_dai_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { … } static void ak4642_dai_shutdown(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { … } static int ak4642_dai_set_sysclk(struct snd_soc_dai *codec_dai, int clk_id, unsigned int freq, int dir) { … } static int ak4642_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) { … } static int ak4642_set_mcko(struct snd_soc_component *component, u32 frequency) { … } static int ak4642_dai_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { … } static int ak4642_set_bias_level(struct snd_soc_component *component, enum snd_soc_bias_level level) { … } static const struct snd_soc_dai_ops ak4642_dai_ops = …; static struct snd_soc_dai_driver ak4642_dai = …; static int ak4642_suspend(struct snd_soc_component *component) { … } static int ak4642_resume(struct snd_soc_component *component) { … } static int ak4642_probe(struct snd_soc_component *component) { … } static const struct snd_soc_component_driver soc_component_dev_ak4642 = …; static const struct regmap_config ak4642_regmap = …; static const struct regmap_config ak4643_regmap = …; static const struct regmap_config ak4648_regmap = …; static const struct ak4642_drvdata ak4642_drvdata = …; static const struct ak4642_drvdata ak4643_drvdata = …; static const struct ak4642_drvdata ak4648_drvdata = …; #ifdef CONFIG_COMMON_CLK static struct clk *ak4642_of_parse_mcko(struct device *dev) { … } #else #define ak4642_of_parse_mcko … #endif static int ak4642_i2c_probe(struct i2c_client *i2c) { … } static const struct of_device_id ak4642_of_match[] = …; MODULE_DEVICE_TABLE(of, ak4642_of_match); static const struct i2c_device_id ak4642_i2c_id[] = …; MODULE_DEVICE_TABLE(i2c, ak4642_i2c_id); static struct i2c_driver ak4642_i2c_driver = …; module_i2c_driver(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …;
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