linux/sound/soc/codecs/wm8971.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * wm8971.c  --  WM8971 ALSA SoC Audio driver
 *
 * Copyright 2005 Lab126, Inc.
 *
 * Author: Kenneth Kiraly <[email protected]>
 *
 * Based on wm8753.c by Liam Girdwood
 */

#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/regmap.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 "wm8971.h"

#define WM8971_REG_COUNT …

/* codec private data */
struct wm8971_priv { … };

/*
 * wm8971 register cache
 * We can't read the WM8971 register space when we
 * are using 2 wire for device control, so we cache them instead.
 */
static const struct reg_default wm8971_reg_defaults[] = …;

#define wm8971_reset(c) …

/* WM8971 Controls */
static const char *wm8971_bass[] = …;
static const char *wm8971_bass_filter[] = …;
static const char *wm8971_treble[] = …;
static const char *wm8971_alc_func[] = …;
static const char *wm8971_ng_type[] = …;
static const char *wm8971_deemp[] = …;
static const char *wm8971_mono_mux[] = …;
static const char *wm8971_dac_phase[] = …;
static const char *wm8971_lline_mux[] = …;
static const char *wm8971_rline_mux[] = …;
static const char *wm8971_lpga_sel[] = …;
static const char *wm8971_rpga_sel[] = …;
static const char *wm8971_adcpol[] = …;

static const struct soc_enum wm8971_enum[] = …;

static const struct snd_kcontrol_new wm8971_snd_controls[] = …;

/*
 * DAPM Controls
 */

/* Left Mixer */
static const struct snd_kcontrol_new wm8971_left_mixer_controls[] = …;

/* Right Mixer */
static const struct snd_kcontrol_new wm8971_right_mixer_controls[] = …;

/* Mono Mixer */
static const struct snd_kcontrol_new wm8971_mono_mixer_controls[] = …;

/* Left Line Mux */
static const struct snd_kcontrol_new wm8971_left_line_controls = …;

/* Right Line Mux */
static const struct snd_kcontrol_new wm8971_right_line_controls = …;

/* Left PGA Mux */
static const struct snd_kcontrol_new wm8971_left_pga_controls = …;

/* Right PGA Mux */
static const struct snd_kcontrol_new wm8971_right_pga_controls = …;

/* Mono ADC Mux */
static const struct snd_kcontrol_new wm8971_monomux_controls = …;

static const struct snd_soc_dapm_widget wm8971_dapm_widgets[] = …;

static const struct snd_soc_dapm_route wm8971_dapm_routes[] = …;

struct _coeff_div { … };

/* codec hifi mclk clock divider coefficients */
static const struct _coeff_div coeff_div[] = …;

static int get_coeff(int mclk, int rate)
{ … }

static int wm8971_set_dai_sysclk(struct snd_soc_dai *codec_dai,
		int clk_id, unsigned int freq, int dir)
{ … }

static int wm8971_set_dai_fmt(struct snd_soc_dai *codec_dai,
		unsigned int fmt)
{ … }

static int wm8971_pcm_hw_params(struct snd_pcm_substream *substream,
	struct snd_pcm_hw_params *params,
	struct snd_soc_dai *dai)
{ … }

static int wm8971_mute(struct snd_soc_dai *dai, int mute, int direction)
{ … }

static void wm8971_charge_work(struct work_struct *work)
{ … }

static int wm8971_set_bias_level(struct snd_soc_component *component,
	enum snd_soc_bias_level level)
{ … }

#define WM8971_RATES …

#define WM8971_FORMATS …

static const struct snd_soc_dai_ops wm8971_dai_ops = …;

static struct snd_soc_dai_driver wm8971_dai = …;

static int wm8971_probe(struct snd_soc_component *component)
{ … }

static const struct snd_soc_component_driver soc_component_dev_wm8971 = …;

static const struct regmap_config wm8971_regmap = …;

static int wm8971_i2c_probe(struct i2c_client *i2c)
{ … }

static const struct i2c_device_id wm8971_i2c_id[] = …;
MODULE_DEVICE_TABLE(i2c, wm8971_i2c_id);

static struct i2c_driver wm8971_i2c_driver = …;

module_i2c_driver(…) …;

MODULE_DESCRIPTION(…) …;
MODULE_AUTHOR(…) …;
MODULE_LICENSE(…) …;