path: root/sound/soc/codecs/wm8750.c

/*
 * wm8750.c -- WM8750 ALSA SoC audio driver
 *
 * Copyright 2005 Openedhand Ltd.
 *
 * Author: Richard Purdie <richard@openedhand.com>
 *
 * Based on WM8753.c
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#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/spi/spi.h>
#include <linux/slab.h>
#include <linux/of_device.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/initval.h>

#include "wm8750.h"

/*
 * wm8750 register cache
 * We can't read the WM8750 register space when we
 * are using 2 wire for device control, so we cache them instead.
 */
static const struct reg_default wm8750_reg_defaults[] = {
	{  0, 0x0097 },
	{  1, 0x0097 },
	{  2, 0x0079 },
	{  3, 0x0079 },
	{  4, 0x0000 },
	{  5, 0x0008 },
	{  6, 0x0000 },
	{  7, 0x000a },
	{  8, 0x0000 },
	{  9, 0x0000 },
	{ 10, 0x00ff },
	{ 11, 0x00ff },
	{ 12, 0x000f },
	{ 13, 0x000f },
	{ 14, 0x0000 },
	{ 15, 0x0000 },
	{ 16, 0x0000 },
	{ 17, 0x007b },
	{ 18, 0x0000 },
	{ 19, 0x0032 },
	{ 20, 0x0000 },
	{ 21, 0x00c3 },
	{ 22, 0x00c3 },
	{ 23, 0x00c0 },
	{ 24, 0x0000 },
	{ 25, 0x0000 },
	{ 26, 0x0000 },
	{ 27, 0x0000 },
	{ 28, 0x0000 },
	{ 29, 0x0000 },
	{ 30, 0x0000 },
	{ 31, 0x0000 },
	{ 32, 0x0000 },
	{ 33, 0x0000 },
	{ 34, 0x0050 },
	{ 35, 0x0050 },
	{ 36, 0x0050 },
	{ 37, 0x0050 },
	{ 38, 0x0050 },
	{ 39, 0x0050 },
	{ 40, 0x0079 },
	{ 41, 0x0079 },
	{ 42, 0x0079 },
};

/* codec private data */
struct wm8750_priv {
	unsigned int sysclk;
};

#define wm8750_reset(c)	snd_soc_write(c, WM8750_RESET, 0)

/*
 * WM8750 Controls
 */
static const char *wm8750_bass[] = {"Linear Control", "Adaptive Boost"};
static const char *wm8750_bass_filter[] = { "130Hz @ 48kHz", "200Hz @ 48kHz" };
static const char *wm8750_treble[] = {"8kHz", "4kHz"};
static const char *wm8750_3d_lc[] = {"200Hz", "500Hz"};
static const char *wm8750_3d_uc[] = {"2.2kHz", "1.5kHz"};
static const char *wm8750_3d_func[] = {"Capture", "Playback"};
static const char *wm8750_alc_func[] = {"Off", "Right", "Left", "Stereo"};
static const char *wm8750_ng_type[] = {"Constant PGA Gain",
	"Mute ADC Output"};
static const char *wm8750_line_mux[] = {"Line 1", "Line 2", "Line 3", "PGA",
	"Differential"};
static const char *wm8750_pga_sel[] = {"Line 1", "Line 2", "Line 3",
	"Differential"};
static const char *wm8750_out3[] = {"VREF", "ROUT1 + Vol", "MonoOut",
	"ROUT1"};
static const char *wm8750_diff_sel[] = {"Line 1", "Line 2"};
static const char *wm8750_adcpol[] = {"Normal", "L Invert", "R Invert",
	"L + R Invert"};
static const char *wm8750_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"};
static const char *wm8750_mono_mux[] = {"Stereo", "Mono (Left)",
	"Mono (Right)", "Digital Mono"};

static const struct soc_enum wm8750_enum[] = {
SOC_ENUM_SINGLE(WM8750_BASS, 7, 2, wm8750_bass),
SOC_ENUM_SINGLE(WM8750_BASS, 6, 2, wm8750_bass_filter),
SOC_ENUM_SINGLE(WM8750_TREBLE, 6, 2, wm8750_treble),
SOC_ENUM_SINGLE(WM8750_3D, 5, 2, wm8750_3d_lc),
SOC_ENUM_SINGLE(WM8750_3D, 6, 2, wm8750_3d_uc),
SOC_ENUM_SINGLE(WM8750_3D, 7, 2, wm8750_3d_func),
SOC_ENUM_SINGLE(WM8750_ALC1, 7, 4, wm8750_alc_func),
SOC_ENUM_SINGLE(WM8750_NGATE, 1, 2, wm8750_ng_type),
SOC_ENUM_SINGLE(WM8750_LOUTM1, 0, 5, wm8750_line_mux),
SOC_ENUM_SINGLE(WM8750_ROUTM1, 0, 5, wm8750_line_mux),
SOC_ENUM_SINGLE(WM8750_LADCIN, 6, 4,