path: root/sound/soc/codecs/sta32x.c

/*
 * Codec driver for ST STA32x 2.1-channel high-efficiency digital audio system
 *
 * Copyright: 2011 Raumfeld GmbH
 * Author: Johannes Stezenbach <js@sig21.net>
 *
 * based on code from:
 *	Wolfson Microelectronics PLC.
 *	  Mark Brown <broonie@opensource.wolfsonmicro.com>
 *	Freescale Semiconductor, Inc.
 *	  Timur Tabi <timur@freescale.com>
 *
 * This program is free software; you can redistribute  it and/or modify it
 * under  the terms of  the GNU General  Public License as published by the
 * Free Software Foundation;  either version 2 of the  License, or (at your
 * option) any later version.
 */

#define pr_fmt(fmt) KBUILD_MODNAME ":%s:%d: " fmt, __func__, __LINE__

#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/regulator/consumer.h>
#include <linux/slab.h>
#include <linux/workqueue.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <sound/initval.h>
#include <sound/tlv.h>

#include <sound/sta32x.h>
#include "sta32x.h"

#define STA32X_RATES (SNDRV_PCM_RATE_32000 | \
		      SNDRV_PCM_RATE_44100 | \
		      SNDRV_PCM_RATE_48000 | \
		      SNDRV_PCM_RATE_88200 | \
		      SNDRV_PCM_RATE_96000 | \
		      SNDRV_PCM_RATE_176400 | \
		      SNDRV_PCM_RATE_192000)

#define STA32X_FORMATS \
	(SNDRV_PCM_FMTBIT_S16_LE  | SNDRV_PCM_FMTBIT_S16_BE  | \
	 SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE | \
	 SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE | \
	 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE | \
	 SNDRV_PCM_FMTBIT_S24_LE  | SNDRV_PCM_FMTBIT_S24_BE  | \
	 SNDRV_PCM_FMTBIT_S32_LE  | SNDRV_PCM_FMTBIT_S32_BE)

/* Power-up register defaults */
static const u8 sta32x_regs[STA32X_REGISTER_COUNT] = {
	0x63, 0x80, 0xc2, 0x40, 0xc2, 0x5c, 0x10, 0xff, 0x60, 0x60,
	0x60, 0x80, 0x00, 0x00, 0x00, 0x40, 0x80, 0x77, 0x6a, 0x69,
	0x6a, 0x69, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x2d,
	0xc0, 0xf3, 0x33, 0x00, 0x0c,
};

/* regulator power supply names */
static const char *sta32x_supply_names[] = {
	"Vdda",	/* analog supply, 3.3VV */
	"Vdd3",	/* digital supply, 3.3V */
	"Vcc"	/* power amp spply, 10V - 36V */
};

/* codec private data */
struct sta32x_priv {
	struct regulator_bulk_data supplies[ARRAY_SIZE(sta32x_supply_names)];
	struct snd_soc_codec *codec;
	struct sta32x_platform_data *pdata;

	unsigned int mclk;
	unsigned int format;

	u32 coef_shadow[STA32X_COEF_COUNT];
	struct delayed_work watchdog_work;
	int shutdown;
};

static const DECLARE_TLV_DB_SCALE(mvol_tlv, -12700, 50, 1);
static const DECLARE_TLV_DB_SCALE(chvol_tlv, -7950, 50, 1);
static const DECLARE_TLV_DB_SCALE(tone_tlv, -120, 200, 0);

static const char *sta32x_drc_ac[] = {
	"Anti-Clipping", "Dynamic Range Compression" };
static const char *sta32x_auto_eq_mode[] = {
	"User", "Preset", "Loudness" };
static const char *sta32x_auto_gc_mode[] = {
	"User", "AC no clipping", "AC limited clipping (10%)",
	"DRC nighttime listening mode" };
static const char *sta32x_auto_xo_mode[] = {
	"User", "80Hz", "100Hz", "120Hz", "140Hz", "160Hz", "180Hz", "200Hz",
	"220Hz", "240Hz", "260Hz", "280Hz", "300Hz", "320Hz", "340Hz", "360Hz" };
static const char *sta32x_preset_eq_mode[] = {
	"Flat", "Rock", "Soft Rock", "Jazz", "Classical", "Dance", "Pop", "Soft",
	"Hard", "Party", "Vocal", "Hip-Hop", "Dialog", "Bass-boost #1",
	"Bass-boost #2", "Bass-boost #3", "Loudness 1", "Loudness 2",
	"Loudness 3", "Loudness 4", "Loudness 5", "Loudness 6", "Loudness 7",
	"Loudness 8", "Loudness 9", "Loudness 10", "Loudness 11", "Loudness 12",
	"Loudness 13", "Loudness 14", "Loudness 15", "Loudness 16" };
static const char *sta32x_limiter_select[] = {
	"Limiter Disabled", "Limiter #1", "Limiter #2" };
static const char *sta32x_limiter_attack_rate[] = {
	"3.1584", "2.7072", "2.2560", "1.8048", "1.3536", "0.9024",
	"0.4512", "0.2256", "0.1504", "0.1123", "0.0902", "0.0752",
	"0.0645", "0.0564", "0.0501", "0.0451" };
static const char *sta32x_limiter_release_rate[] = {
	"0.5116", "0.1370",