linux/sound/soc/codecs/max98371.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * max98371.c -- ALSA SoC Stereo MAX98371 driver
 *
 * Copyright 2015-16 Maxim Integrated Products
 */

#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/tlv.h>
#include "max98371.h"

static const char *const monomix_text[] = …;

static const char *const hpf_cutoff_txt[] = …;

static SOC_ENUM_SINGLE_DECL(max98371_monomix, MAX98371_MONOMIX_CFG, 0,
		monomix_text);

static SOC_ENUM_SINGLE_DECL(max98371_hpf_cutoff, MAX98371_HPF, 0,
		hpf_cutoff_txt);

static const DECLARE_TLV_DB_RANGE(max98371_dht_min_gain,
	0, 1, TLV_DB_SCALE_ITEM(537, 66, 0),
	2, 3, TLV_DB_SCALE_ITEM(677, 82, 0),
	4, 5, TLV_DB_SCALE_ITEM(852, 104, 0),
	6, 7, TLV_DB_SCALE_ITEM(1072, 131, 0),
	8, 9, TLV_DB_SCALE_ITEM(1350, 165, 0),
	10, 11, TLV_DB_SCALE_ITEM(1699, 101, 0),
);

static const DECLARE_TLV_DB_RANGE(max98371_dht_max_gain,
	0, 1, TLV_DB_SCALE_ITEM(537, 66, 0),
	2, 3, TLV_DB_SCALE_ITEM(677, 82, 0),
	4, 5, TLV_DB_SCALE_ITEM(852, 104, 0),
	6, 7, TLV_DB_SCALE_ITEM(1072, 131, 0),
	8, 9, TLV_DB_SCALE_ITEM(1350, 165, 0),
	10, 11, TLV_DB_SCALE_ITEM(1699, 208, 0),
);

static const DECLARE_TLV_DB_RANGE(max98371_dht_rot_gain,
	0, 1, TLV_DB_SCALE_ITEM(-50, -50, 0),
	2, 6, TLV_DB_SCALE_ITEM(-100, -100, 0),
	7, 8, TLV_DB_SCALE_ITEM(-800, -200, 0),
	9, 11, TLV_DB_SCALE_ITEM(-1200, -300, 0),
	12, 13, TLV_DB_SCALE_ITEM(-2000, -200, 0),
	14, 15, TLV_DB_SCALE_ITEM(-2500, -500, 0),
);

static const struct reg_default max98371_reg[] = …;

static bool max98371_volatile_register(struct device *dev, unsigned int reg)
{ … }

static bool max98371_readable_register(struct device *dev, unsigned int reg)
{
	switch (reg) {
	case MAX98371_SOFT_RESET:
		return false;
	default:
		return true;
	}
};

static const DECLARE_TLV_DB_RANGE(max98371_gain_tlv,
	0, 7, TLV_DB_SCALE_ITEM(0, 50, 0),
	8, 10, TLV_DB_SCALE_ITEM(400, 100, 0)
);

static const DECLARE_TLV_DB_SCALE(digital_tlv, -6300, 50, 1);

static const struct snd_kcontrol_new max98371_snd_controls[] = …;

static int max98371_dai_set_fmt(struct snd_soc_dai *codec_dai,
		unsigned int fmt)
{ … }

static int max98371_dai_hw_params(struct snd_pcm_substream *substream,
		struct snd_pcm_hw_params *params,
		struct snd_soc_dai *dai)
{ … }

static const struct snd_soc_dapm_widget max98371_dapm_widgets[] = …;

static const struct snd_soc_dapm_route max98371_audio_map[] = …;

#define MAX98371_RATES …
#define MAX98371_FORMATS …

static const struct snd_soc_dai_ops max98371_dai_ops = …;

static struct snd_soc_dai_driver max98371_dai[] = …;

static const struct snd_soc_component_driver max98371_component = …;

static const struct regmap_config max98371_regmap = …;

static int max98371_i2c_probe(struct i2c_client *i2c)
{ … }

static const struct i2c_device_id max98371_i2c_id[] = …;

MODULE_DEVICE_TABLE(i2c, max98371_i2c_id);

#ifdef CONFIG_OF
static const struct of_device_id max98371_of_match[] = …;
MODULE_DEVICE_TABLE(of, max98371_of_match);
#endif

static struct i2c_driver max98371_i2c_driver = …;

module_i2c_driver(…) …;

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