linux/sound/soc/codecs/wm8974.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * wm8974.c  --  WM8974 ALSA Soc Audio driver
 *
 * Copyright 2006-2009 Wolfson Microelectronics PLC.
 *
 * Author: Liam Girdwood <[email protected]>
 */

#include <linux/module.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/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 "wm8974.h"

struct wm8974_priv { … };

static const struct reg_default wm8974_reg_defaults[] = …;

#define WM8974_POWER1_BIASEN …
#define WM8974_POWER1_BUFIOEN …

#define wm8974_reset(c) …

static const char *wm8974_companding[] = …;
static const char *wm8974_deemp[] = …;
static const char *wm8974_eqmode[] = …;
static const char *wm8974_bw[] = …;
static const char *wm8974_eq1[] = …;
static const char *wm8974_eq2[] = …;
static const char *wm8974_eq3[] = …;
static const char *wm8974_eq4[] = …;
static const char *wm8974_eq5[] = …;
static const char *wm8974_alc[] = …;

static const struct soc_enum wm8974_enum[] = …;

static const char *wm8974_auxmode_text[] = …;

static SOC_ENUM_SINGLE_DECL(wm8974_auxmode,
			    WM8974_INPUT,  3, wm8974_auxmode_text);

static const DECLARE_TLV_DB_SCALE(digital_tlv, -12750, 50, 1);
static const DECLARE_TLV_DB_SCALE(eq_tlv, -1200, 100, 0);
static const DECLARE_TLV_DB_SCALE(inpga_tlv, -1200, 75, 0);
static const DECLARE_TLV_DB_SCALE(spk_tlv, -5700, 100, 0);

static const struct snd_kcontrol_new wm8974_snd_controls[] = …;

/* Speaker Output Mixer */
static const struct snd_kcontrol_new wm8974_speaker_mixer_controls[] = …;

/* Mono Output Mixer */
static const struct snd_kcontrol_new wm8974_mono_mixer_controls[] = …;

/* Boost mixer */
static const struct snd_kcontrol_new wm8974_boost_mixer[] = …;

/* Input PGA */
static const struct snd_kcontrol_new wm8974_inpga[] = …;

static const struct snd_soc_dapm_widget wm8974_dapm_widgets[] = …;

static const struct snd_soc_dapm_route wm8974_dapm_routes[] = …;

struct pll_ { … };

/* The size in bits of the pll divide multiplied by 10
 * to allow rounding later */
#define FIXED_PLL_SIZE …

static void pll_factors(struct pll_ *pll_div,
			unsigned int target, unsigned int source)
{ … }

static int wm8974_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
		int source, unsigned int freq_in, unsigned int freq_out)
{ … }

/*
 * Configure WM8974 clock dividers.
 */
static int wm8974_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
		int div_id, int div)
{ … }

static unsigned int wm8974_get_mclkdiv(unsigned int f_in, unsigned int f_out,
				       int *mclkdiv)
{ … }

static int wm8974_update_clocks(struct snd_soc_dai *dai)
{ … }

static int wm8974_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id,
				 unsigned int freq, int dir)
{ … }

static int wm8974_set_dai_fmt(struct snd_soc_dai *codec_dai,
		unsigned int fmt)
{ … }

static int wm8974_pcm_hw_params(struct snd_pcm_substream *substream,
				struct snd_pcm_hw_params *params,
				struct snd_soc_dai *dai)
{ … }

static int wm8974_mute(struct snd_soc_dai *dai, int mute, int direction)
{ … }

/* liam need to make this lower power with dapm */
static int wm8974_set_bias_level(struct snd_soc_component *component,
	enum snd_soc_bias_level level)
{ … }

#define WM8974_RATES …

#define WM8974_FORMATS …

static const struct snd_soc_dai_ops wm8974_ops = …;

static struct snd_soc_dai_driver wm8974_dai = …;

static const struct regmap_config wm8974_regmap = …;

static int wm8974_probe(struct snd_soc_component *component)
{ … }

static const struct snd_soc_component_driver soc_component_dev_wm8974 = …;

static int wm8974_i2c_probe(struct i2c_client *i2c)
{ … }

static const struct i2c_device_id wm8974_i2c_id[] = …;
MODULE_DEVICE_TABLE(i2c, wm8974_i2c_id);

static const struct of_device_id wm8974_of_match[] = …;
MODULE_DEVICE_TABLE(of, wm8974_of_match);

static struct i2c_driver wm8974_i2c_driver = …;

module_i2c_driver(…) …;

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