sound/soc/codecs/wm9713.c

/*
 * wm9713.c  --  ALSA Soc WM9713 codec support
 *
 * Copyright 2006 Wolfson Microelectronics PLC.
 * Author: Liam Girdwood
 *         liam.girdwood@wolfsonmicro.com or linux@wolfsonmicro.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.
 *
 *  Features:-
 *
 *   o Support for AC97 Codec, Voice DAC and Aux DAC
 *   o Support for DAPM
 */

#include <linux/init.h>
#include <linux/module.h>
#include <linux/device.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/ac97_codec.h>
#include <sound/initval.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>

#include "wm9713.h"

#define WM9713_VERSION "0.15"

struct wm9713_priv {
	u32 pll_in; /* PLL input frequency */
	u32 pll_out; /* PLL output frequency */
};

static unsigned int ac97_read(struct snd_soc_codec *codec,
	unsigned int reg);
static int ac97_write(struct snd_soc_codec *codec,
	unsigned int reg, unsigned int val);

/*
 * WM9713 register cache
 * Reg 0x3c bit 15 is used by touch driver.
 */
static const u16 wm9713_reg[] = {
	0x6174, 0x8080, 0x8080, 0x8080,
	0xc880, 0xe808, 0xe808, 0x0808,
	0x00da, 0x8000, 0xd600, 0xaaa0,
	0xaaa0, 0xaaa0, 0x0000, 0x0000,
	0x0f0f, 0x0040, 0x0000, 0x7f00,
	0x0405, 0x0410, 0xbb80, 0xbb80,
	0x0000, 0xbb80, 0x0000, 0x4523,
	0x0000, 0x2000, 0x7eff, 0xffff,
	0x0000, 0x0000, 0x0080, 0x0000,
	0x0000, 0x0000, 0xfffe, 0xffff,
	0x0000, 0x0000, 0x0000, 0xfffe,
	0x4000, 0x0000, 0x0000, 0x0000,
	0xb032, 0x3e00, 0x0000, 0x0000,
	0x0000, 0x0000, 0x0000, 0x0000,
	0x0000, 0x0000, 0x0000, 0x0006,
	0x0001, 0x0000, 0x574d, 0x4c13,
	0x0000, 0x0000, 0x0000
};

/* virtual HP mixers regs */
#define HPL_MIXER	0x80
#define HPR_MIXER	0x82
#define MICB_MUX	0x82

static const char *wm9713_mic_mixer[] = {"Stereo", "Mic 1", "Mic 2", "Mute"};
static const char *wm9713_rec_mux[] = {"Stereo", "Left", "Right", "Mute"};
static const char *wm9713_rec_src[] =
	{"Mic 1", "Mic 2", "Line", "Mono In", "Headphone", "Speaker",
	"Mono Out", "Zh"};
static const char *wm9713_rec_gain[] = {"+1.5dB Steps", "+0.75dB Steps"};
static const char *wm9713_alc_select[] = {"None", "Left", "Right", "Stereo"};
static const char *wm9713_mono_pga[] = {"Vmid", "Zh", "Mono", "Inv",
	"Mono Vmid", "Inv Vmid"};
static const char *wm9713_spk_pga[] =
	{"Vmid", "Zh", "Headphone", "Speaker", "Inv", "Headphone Vmid",
	"Speaker Vmid", "Inv Vmid"};
static const char *wm9713_hp_pga[] = {"Vmid", "Zh", "Headphone",
	"Headphone Vmid"};
static const char *wm9713_out3_pga[] = {"Vmid", "Zh", "Inv 1", "Inv 1 Vmid"};
static const char *wm9713_out4_pga[] = {"Vmid", "Zh", "Inv 2", "Inv 2 Vmid"};
static const char *wm9713_dac_inv[] =
	{"Off", "Mono", "Speaker", "Left Headphone", "Right Headphone",
	"Headphone Mono", "NC", "Vmid"};
static const char *wm9713_bass[] = {"Linear Control", "Adaptive Boost"};
static const char *wm9713_ng_type[] = {"Constant Gain", "Mute"};
static const char *wm9713_mic_select[] = {"Mic 1", "Mic 2 A", "Mic 2 B"};
static const char *wm9713_micb_select[] = {"MPB", "MPA"};

static const struct soc_enum wm9713_enum[] = {
SOC_ENUM_SINGLE(AC97_LINE, 3, 4, wm9713_mic_mixer), /* record mic mixer 0 */
SOC_ENUM_SINGLE(AC97_VIDEO, 14, 4, wm9713_rec_mux), /* record mux hp 1 */
SOC_ENUM_SINGLE(AC97_VIDEO, 9, 4, wm9713_rec_mux),  /* record mux mono 2 */
SOC_ENUM_SINGLE(AC97_VIDEO, 3, 8, wm9713_rec_src),  /* record mux left 3 */
SOC_ENUM_SINGLE(AC97_VIDEO, 0, 8, wm9713_rec_src),  /* record mux right 4*/
SOC_ENUM_DOUBLE(AC97_CD, 14, 6, 2, wm9713_rec_gain), /* record step size 5 */
SOC_ENUM_SINGLE(AC97_PCI_SVID, 14, 4, wm9713_alc_select), /* alc source select 6*/
SOC_ENUM_SINGLE(AC97_REC_GAIN, 14, 4, wm9713_mono_pga), /* mono input select 7 */
SOC_ENUM_SINGLE(AC97_REC_GAIN, 11, 8, wm9713_spk_pga), /* speaker left input select 8 */
SOC_ENUM_SINGLE(AC97_REC_GAIN, 8, 8, wm9713_spk_pga), /* speaker right input select 9 */
SOC_ENUM_SINGLE(AC97_REC_GAIN, 6, 3, wm9713_hp_pga), /* headphone left input 10 */
SOC_ENUM_SINGLE(AC97_REC_GAIN, 4, 3, wm9713_hp_pga), /* headphone right input 11 */
SOC_ENUM_SINGLE(AC97_REC_GAIN, 2, 4, wm9713_out3_pga), /* out 3 source 12 */
SOC_ENUM_SINGLE(AC97_REC_GAIN, 0, 4, wm9713_out4_pga), /* out 4 source 13 */
SOC_ENUM_SINGLE(AC97_REC_GAIN_MIC, 13, 8, wm9713_dac_inv), /* dac invert 1 14 */
SOC_ENUM_SINGLE(AC97_REC_GAIN_MIC, 10, 8, wm9713_dac_inv), /* dac invert 2 15 */
SOC_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 15, 2, wm9713_bass), /* bass control 16 */
SOC_ENUM_SINGLE(AC97_PCI_SVID, 5, 2, wm9713_ng_type), /* noise gate type 17 */
SOC_ENUM_SINGLE(AC97_3D_CONTROL, 12, 3, wm9713_mic_select), /* mic selection 18 */
SOC_ENUM_SINGLE(MICB_MUX, 0, 2, wm9713_micb_select), /* mic selection 19 */
};

static const struct snd_kcontrol_new wm9713_snd_ac97_controls[] = {
SOC_DOUBLE("Speaker Playback Volume", AC97_MASTER, 8, 0, 31, 1),
SOC_DOUBLE("Speaker Playback Switch", AC97_MASTER, 15, 7, 1, 1),
SOC_DOUBLE("Headphone Playback Volume", AC97_HEADPHONE, 8, 0, 31, 1),
SOC_DOUBLE("Headphone Playback Switch", AC97_HEADPHONE, 15, 7, 1, 1),
SOC_DOUBLE("Line In Volume", AC97_PC_BEEP, 8, 0, 31, 1),
SOC_DOUBLE("PCM Playback Volume", AC97_PHONE, 8, 0, 31, 1),
SOC_SINGLE("Mic 1 Volume", AC97_MIC, 8, 31, 1),
SOC_SINGLE("Mic 2 Volume", AC97_MIC, 0, 31, 1),

SOC_SINGLE("Mic Boost (+20dB) Switch", AC97_LINE, 5, 1, 0),
SOC_SINGLE("Mic Headphone Mixer Volume", AC97_LINE, 0, 7, 1),

SOC_SINGLE("Capture Switch", AC97_CD, 15, 1, 1),
SOC_ENUM("Capture Volume Steps", wm9713_enum[5]),
SOC_DOUBLE("Capture Volume", AC97_CD, 8, 0, 31, 0),
SOC_SINGLE("Capture ZC Switch", AC97_CD, 7, 1, 0),

SOC_SINGLE("Capture to Headphone Volume", AC97_VIDEO, 11, 7, 1),
SOC_SINGLE("Capture to Mono Boost (+20dB) Switch", AC97_VIDEO, 8, 1, 0),
SOC_SINGLE("Capture ADC Boost (+20dB) Switch", AC97_VIDEO, 6, 1, 0),

SOC_SINGLE("ALC Target Volume", AC97_CODEC_CLASS_REV, 12, 15, 0),
SOC_SINGLE("ALC Hold Time", AC97_CODEC_CLASS_REV, 8, 15, 0),
SOC_SINGLE("ALC Decay Time ", AC97_CODEC_CLASS_REV, 4, 15, 0),
SOC_SINGLE("ALC Attack Time", AC97_CODEC_CLASS_REV, 0, 15, 0),
SOC_ENUM("ALC Function", wm9713_enum[6]),
SOC_SINGLE("ALC Max Volume", AC97_PCI_SVID, 11, 7, 0),
SOC_SINGLE("ALC ZC Timeout", AC97_PCI_SVID, 9, 3, 0),
SOC_SINGLE("ALC ZC Switch", AC97_PCI_SVID, 8, 1, 0),
SOC_SINGLE("ALC NG Switch", AC97_PCI_SVID, 7, 1, 0),
SOC_ENUM("ALC NG Type", wm9713_enum[17]),
SOC_SINGLE("ALC NG Threshold", AC97_PCI_SVID, 0, 31, 0),

SOC_DOUBLE("Speaker Playback ZC Switch", AC97_MASTER, 14, 6, 1, 0),
SOC_DOUBLE("Headphone Playback ZC Switch", AC97_HEADPHONE, 14, 6, 1, 0),

SOC_SINGLE("Out4 Playback Switch", AC97_MASTER_MONO, 15, 1, 1),
SOC_SINGLE("Out4 Playback ZC Switch", AC97_MASTER_MONO, 14, 1, 0),
SOC_SINGLE("Out4 Playback Volume", AC97_MASTER_MONO, 8, 63, 1),

SOC_SINGLE("Out3 Playback Switch", AC97_MASTER_MONO, 7, 1, 1),
SOC_SINGLE("Out3 Playback ZC Switch", AC97_MASTER_MONO, 6, 1, 0),
SOC_SINGLE("Out3 Playback Volume", AC97_MASTER_MONO, 0, 63, 1),

SOC_SINGLE("Mono Capture Volume", AC97_MASTER_TONE, 8, 31, 1),
SOC_SINGLE("Mono Playback Switch", AC97_MASTER_TONE, 7, 1, 1),
SOC_SINGLE("Mono Playback ZC Switch", AC97_MASTER_TONE, 6, 1, 0),
SOC_SINGLE("Mono Playback Volume", AC97_MASTER_TONE, 0, 31, 1),

SOC_SINGLE("PC Beep Playback Headphone Volume", AC97_AUX, 12, 7, 1),
SOC_SINGLE("PC Beep Playback Speaker Volume", AC97_AUX, 8, 7, 1),
SOC_SINGLE("PC Beep Playback Mono Volume", AC97_AUX, 4, 7, 1),

SOC_SINGLE("Voice Playback Headphone Volume", AC97_PCM, 12, 7, 1),
SOC_SINGLE("Voice Playback Master Volume", AC97_PCM, 8, 7, 1),
SOC_SINGLE("Voice Playback Mono Volume", AC97_PCM, 4, 7, 1),

SOC_SINGLE("Aux Playback Headphone Volume", AC97_REC_SEL, 12, 7, 1),
SOC_SINGLE("Aux Playback Master Volume", AC97_REC_SEL, 8, 7, 1),
SOC_SINGLE("Aux Playback Mono Volume", AC97_REC_SEL, 4, 7, 1),

SOC_ENUM("Bass Control", wm9713_enum[16]),
SOC_SINGLE("Bass Cut-off Switch", AC97_GENERAL_PURPOSE, 12, 1, 1),
SOC_SINGLE("Tone Cut-off Switch", AC97_GENERAL_PURPOSE, 4, 1, 1),
SOC_SINGLE("Playback Attenuate (-6dB) Switch", AC97_GENERAL_PURPOSE, 6, 1, 0),
SOC_SINGLE("Bass Volume", AC97_GENERAL_PURPOSE, 8, 15, 1),
SOC_SINGLE("Tone Volume", AC97_GENERAL_PURPOSE, 0, 15, 1),

SOC_SINGLE("3D Upper Cut-off Switch", AC97_REC_GAIN_MIC, 5, 1, 0),
SOC_SINGLE("3D Lower Cut-off Switch", AC97_REC_GAIN_MIC, 4, 1, 0),
SOC_SINGLE("3D Depth", AC97_REC_GAIN_MIC, 0, 15, 1),
};

/* add non dapm controls */
static int wm9713_add_controls(struct snd_soc_codec *codec)
{
	int err, i;

	for (i = 0; i < ARRAY_SIZE(wm9713_snd_ac97_controls); i++) {
		err = snd_ctl_add(codec->card,
				snd_soc_cnew(&wm9713_snd_ac97_controls[i],
					codec, NULL));
		if (err < 0)
			return err;
	}
	return 0;
}

/* We have to create a fake left and right HP mixers because
 * the codec only has a single control that is shared by both channels.
 * This makes it impossible to determine the audio path using the current
 * register map, thus we add a new (virtual) register to help determine the
 * audio route within the device.
 */
static int mixer_event(struct snd_soc_dapm_widget *w,
	struct snd_kcontrol *kcontrol, int event)
{
	u16 l, r, beep, tone, phone, rec, pcm, aux;

	l = ac97_read(w->codec, HPL_MIXER);
	r = ac97_read(w->codec, HPR_MIXER);
	beep = ac97_read(w->codec, AC97_PC_BEEP);
	tone = ac97_read(w->codec, AC97_MASTER_TONE);
	phone = ac97_read(w->codec, AC97_PHONE);
	rec = ac97_read(w->codec, AC97_REC_SEL);
	pcm = ac97_read(w->codec, AC97_PCM);
	aux = ac97_read(w->codec, AC97_AUX);

	if (event & SND_SOC_DAPM_PRE_REG)
		return 0;
	if ((l & 0x1) || (r & 0x1))
		ac97_write(w->codec, AC97_PC_BEEP, beep & 0x7fff);
	else
		ac97_write(w->codec, AC97_PC_BEEP, beep | 0x8000);

	if ((l & 0x2) || (r & 0x2))
		ac97_write(w->codec, AC97_MASTER_TONE, tone & 0x7fff);
	else
		ac97_write(w->codec, AC97_MASTER_TONE, tone | 0x8000);

	if ((l & 0x4) || (r & 0x4))
		ac97_write(w->codec, AC97_PHONE, phone & 0x7fff);
	else
		ac97_write(w->codec, AC97_PHONE, phone | 0x8000);

	if ((l & 0x8) || (r & 0x8))
		ac97_write(w->codec, AC97_REC_SEL, rec & 0x7fff);
	else
		ac97_write(w->codec, AC97_REC_SEL, rec | 0x8000);

	if ((l & 0x10) || (r & 0x10))
		ac97_write(w->codec, AC97_PCM, pcm & 0x7fff);
	else
		ac97_write(w->codec, AC97_PCM, pcm | 0x8000);

	if ((l & 0x20) || (r & 0x20))
		ac97_write(w->codec, AC97_AUX, aux & 0x7fff);
	else
		ac97_write(w->codec, AC97_AUX, aux | 0x8000);

	return 0;
}

/* Left Headphone Mixers */
static const struct snd_kcontrol_new wm9713_hpl_mixer_controls[] = {
SOC_DAPM_SINGLE("PC Beep Playback Switch", HPL_MIXER, 5, 1, 0),
SOC_DAPM_SINGLE("Voice Playback Switch", HPL_MIXER, 4, 1, 0),
SOC_DAPM_SINGLE("Aux Playback Switch", HPL_MIXER, 3, 1, 0),
SOC_DAPM_SINGLE("PCM Playback Switch", HPL_MIXER, 2, 1, 0),
SOC_DAPM_SINGLE("MonoIn Playback Switch", HPL_MIXER, 1, 1, 0),
SOC_DAPM_SINGLE("Bypass Playback Switch", HPL_MIXER, 0, 1, 0),
};

/* Right Headphone Mixers */
static const struct snd_kcontrol_new wm9713_hpr_mixer_controls[] = {
SOC_DAPM_SINGLE("PC Beep Playback Switch", HPR_MIXER, 5, 1, 0),
SOC_DAPM_SINGLE("Voice Playback Switch", HPR_MIXER, 4, 1, 0),
SOC_DAPM_SINGLE("Aux Playback Switch", HPR_MIXER, 3, 1, 0),
SOC_DAPM_SINGLE("PCM Playback Switch", HPR_MIXER, 2, 1, 0),
SOC_DAPM_SINGLE("MonoIn Playback Switch", HPR_MIXER, 1, 1, 0),
SOC_DAPM_SINGLE("Bypass Playback Switch", HPR_MIXER, 0, 1, 0),
};

/* headphone capture mux */
static const struct snd_kcontrol_new wm9713_hp_rec_mux_controls =
SOC_DAPM_ENUM("Route", wm9713_enum[1]);

/* headphone mic mux */
static const struct snd_kcontrol_new wm9713_hp_mic_mux_controls =
SOC_DAPM_ENUM("Route", wm9713_enum[0]);

/* Speaker Mixer */
static const struct snd_kcontrol_new wm9713_speaker_mixer_controls[] = {
SOC_DAPM_SINGLE("PC Beep Playback Switch", AC97_AUX, 11, 1, 1),
SOC_DAPM_SINGLE("Voice Playback Switch", AC97_PCM, 11, 1, 1),
SOC_DAPM_SINGLE("Aux Playback Switch", AC97_REC_SEL, 11, 1, 1),
SOC_DAPM_SINGLE("PCM Playback Switch", AC97_PHONE, 14, 1, 1),
SOC_DAPM_SINGLE("MonoIn Playback Switch", AC97_MASTER_TONE, 14, 1, 1),
SOC_DAPM_SINGLE("Bypass Playback Switch", AC97_PC_BEEP, 14, 1, 1),
};

/* Mono Mixer */
static const struct snd_kcontrol_new wm9713_mono_mixer_controls[] = {
SOC_DAPM_SINGLE("PC Beep Playback Switch", AC97_AUX, 7, 1, 1),
SOC_DAPM_SINGLE("Voice Playback Switch", AC97_PCM, 7, 1, 1),
SOC_DAPM_SINGLE("Aux Playback Switch", AC97_REC_SEL, 7, 1, 1),
SOC_DAPM_SINGLE("PCM Playback Switch", AC97_PHONE, 13, 1, 1),
SOC_DAPM_SINGLE("MonoIn Playback Switch", AC97_MASTER_TONE, 13, 1, 1),
SOC_DAPM_SINGLE("Bypass Playback Switch", AC97_PC_BEEP, 13, 1, 1),
SOC_DAPM_SINGLE("Mic 1 Sidetone Switch", AC97_LINE, 7, 1, 1),
SOC_DAPM_SINGLE("Mic 2 Sidetone Switch", AC97_LINE, 6, 1, 1),
};

/* mono mic mux */
static const struct snd_kcontrol_new wm9713_mono_mic_mux_controls =
SOC_DAPM_ENUM("Route", wm9713_enum[2]);

/* mono output mux */
static const struct snd_kcontrol_new wm9713_mono_mux_controls =
SOC_DAPM_ENUM("Route", wm9713_enum[7]);

/* speaker left output mux */
static const struct snd_kcontrol_new wm9713_hp_spkl_mux_controls =
SOC_DAPM_ENUM("Route", wm9713_enum[8]);

/* speaker right output mux */
static const struct snd_kcontrol_new wm9713_hp_spkr_mux_controls =
SOC_DAPM_ENUM("Route", wm9713_enum[9]);

/* headphone left output mux */
static const struct snd_kcontrol_new wm9713_hpl_out_mux_controls =
SOC_DAPM_ENUM("Route", wm9713_enum[10]);

/* headphone right output mux */
static const struct snd_kcontrol_new wm9713_hpr_out_mux_controls =
SOC_DAPM_ENUM("Route", wm9713_enum[11]);

/* Out3 mux */
static const struct snd_kcontrol_new wm9713_out3_mux_controls =
SOC_DAPM_ENUM("Route", wm9713_enum[12]);

/* Out4 mux */
static const struct snd_kcontrol_new wm9713_out4_mux_controls =
SOC_DAPM_ENUM("Route", wm9713_enum[13]);

/* DAC inv mux 1 */
static const struct snd_kcontrol_new wm9713_dac_inv1_mux_controls =
SOC_DAPM_ENUM("Route", wm9713_enum[14]);

/* DAC inv mux 2 */
static const struct snd_kcontrol_new wm9713_dac_inv2_mux_controls =
SOC_DAPM_ENUM("Route", wm9713_enum[15]);

/* Capture source left */
static const struct snd_kcontrol_new wm9713_rec_srcl_mux_controls =
SOC_DAPM_ENUM("Route", wm9713_enum[3]);

/* Capture source right */
static const struct snd_kcontrol_new wm9713_rec_srcr_mux_controls =
SOC_DAPM_ENUM("Route", wm9713_enum[4]);

/* mic source */
static const struct snd_kcontrol_new wm9713_mic_sel_mux_controls =
SOC_DAPM_ENUM("Route", wm9713_enum[18]);

/* mic source B virtual control */
static const struct snd_kcontrol_new wm9713_micb_sel_mux_controls =
SOC_DAPM_ENUM("Route", wm9713_enum[19]);

static const struct snd_soc_dapm_widget wm9713_dapm_widgets[] = {
SND_SOC_DAPM_MUX("Capture Headphone Mux", SND_SOC_NOPM, 0, 0,
	&wm9713_hp_rec_mux_controls),
SND_SOC_DAPM_MUX("Sidetone Mux", SND_SOC_NOPM, 0, 0,
	&wm9713_hp_mic_mux_controls),
SND_SOC_DAPM_MUX("Capture Mono Mux", SND_SOC_NOPM, 0, 0,
	&wm9713_mono_mic_mux_controls),
SND_SOC_DAPM_MUX("Mono Out Mux", SND_SOC_NOPM, 0, 0,
	&wm9713_mono_mux_controls),
SND_SOC_DAPM_MUX("Left Speaker Out Mux", SND_SOC_NOPM, 0, 0,
	&wm9713_hp_spkl_mux_controls),
SND_SOC_DAPM_MUX("Right Speaker Out Mux", SND_SOC_NOPM, 0, 0,
	&wm9713_hp_spkr_mux_controls),
SND_SOC_DAPM_MUX("Left Headphone Out Mux", SND_SOC_NOPM, 0, 0,
	&wm9713_hpl_out_mux_controls),
SND_SOC_DAPM_MUX("Right Headphone Out Mux", SND_SOC_NOPM, 0, 0,
	&wm9713_hpr_out_mux_controls),
SND_SOC_DAPM_MUX("Out 3 Mux", SND_SOC_NOPM, 0, 0,
	&wm9713_out3_mux_controls),
SND_SOC_DAPM_MUX("Out 4 Mux", SND_SOC_NOPM, 0, 0,
	&wm9713_out4_mux_controls),
SND_SOC_DAPM_MUX("DAC Inv Mux 1", SND_SOC_NOPM, 0, 0,
	&wm9713_dac_inv1_mux_controls),
SND_SOC_DAPM_MUX("DAC Inv Mux 2", SND_SOC_NOPM, 0, 0,
	&wm9713_dac_inv2_mux_controls),
SND_SOC_DAPM_MUX("Left Capture Source", SND_SOC_NOPM, 0, 0,
	&wm9713_rec_srcl_mux_controls),
SND_SOC_DAPM_MUX("Right Capture Source", SND_SOC_NOPM, 0, 0,
	&wm9713_rec_srcr_mux_controls),
SND_SOC_DAPM_MUX("Mic A Source", SND_SOC_NOPM, 0, 0,
	&wm9713_mic_sel_mux_controls),
SND_SOC_DAPM_MUX("Mic B Source", SND_SOC_NOPM, 0, 0,
	&wm9713_micb_sel_mux_controls),
SND_SOC_DAPM_MIXER_E("Left HP Mixer", AC97_EXTENDED_MID, 3, 1,
	&wm9713_hpl_mixer_controls[0], ARRAY_SIZE(wm9713_hpl_mixer_controls),
	mixer_event, SND_SOC_DAPM_POST_REG),
SND_SOC_DAPM_MIXER_E("Right HP Mixer", AC97_EXTENDED_MID, 2, 1,
	&wm9713_hpr_mixer_controls[0], ARRAY_SIZE(wm9713_hpr_mixer_controls),
	mixer_event, SND_SOC_DAPM_POST_REG),
SND_SOC_DAPM_MIXER("Mono Mixer", AC97_EXTENDED_MID, 0, 1,
	&wm9713_mono_mixer_controls[0], ARRAY_SIZE(wm9713_mono_mixer_controls)),
SND_SOC_DAPM_MIXER("Speaker Mixer", AC97_EXTENDED_MID, 1, 1,
	&wm9713_speaker_mixer_controls[0],
	ARRAY_SIZE(wm9713_speaker_mixer_controls)),
SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback", AC97_EXTENDED_MID, 7, 1),
SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback", AC97_EXTENDED_MID, 6, 1),
SND_SOC_DAPM_MIXER("AC97 Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_MIXER("HP Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_MIXER("Line Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_MIXER("Capture Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_DAC("Voice DAC", "Voice Playback", AC97_EXTENDED_MID, 12, 1),
SND_SOC_DAPM_DAC("Aux DAC", "Aux Playback", AC97_EXTENDED_MID, 11, 1),
SND_SOC_DAPM_ADC("Left ADC", "Left HiFi Capture", AC97_EXTENDED_MID, 5, 1),
SND_SOC_DAPM_ADC("Right ADC", "Right HiFi Capture", AC97_EXTENDED_MID, 4, 1),
SND_SOC_DAPM_PGA("Left Headphone", AC97_EXTENDED_MSTATUS, 10, 1, NULL, 0),
SND_SOC_DAPM_PGA("Right Headphone", AC97_EXTENDED_MSTATUS, 9, 1, NULL, 0),
SND_SOC_DAPM_PGA("Left Speaker", AC97_EXTENDED_MSTATUS, 8, 1, NULL, 0),
SND_SOC_DAPM_PGA("Right Speaker", AC97_EXTENDED_MSTATUS, 7, 1, NULL, 0),
SND_SOC_DAPM_PGA("Out 3", AC97_EXTENDED_MSTATUS, 11, 1, NULL, 0),
SND_SOC_DAPM_PGA("Out 4", AC97_EXTENDED_MSTATUS, 12, 1, NULL, 0),
SND_SOC_DAPM_PGA("Mono Out", AC97_EXTENDED_MSTATUS, 13, 1, NULL, 0),
SND_SOC_DAPM_PGA("Left Line In", AC97_EXTENDED_MSTATUS, 6, 1, NULL, 0),
SND_SOC_DAPM_PGA("Right Line In", AC97_EXTENDED_MSTATUS, 5, 1, NULL, 0),
SND_SOC_DAPM_PGA("Mono In", AC97_EXTENDED_MSTATUS, 4, 1, NULL, 0),
SND_SOC_DAPM_PGA("Mic A PGA", AC97_EXTENDED_MSTATUS, 3, 1, NULL, 0),
SND_SOC_DAPM_PGA("Mic B PGA", AC97_EXTENDED_MSTATUS, 2, 1, NULL, 0),
SND_SOC_DAPM_PGA("Mic A Pre Amp", AC97_EXTENDED_MSTATUS, 1, 1, NULL, 0),
SND_SOC_DAPM_PGA("Mic B Pre Amp", AC97_EXTENDED_MSTATUS, 0, 1, NULL, 0),
SND_SOC_DAPM_MICBIAS("Mic Bias", AC97_EXTENDED_MSTATUS, 14, 1),
SND_SOC_DAPM_OUTPUT("MONO"),
SND_SOC_DAPM_OUTPUT("HPL"),
SND_SOC_DAPM_OUTPUT("HPR"),
SND_SOC_DAPM_OUTPUT("SPKL"),
SND_SOC_DAPM_OUTPUT("SPKR"),
SND_SOC_DAPM_OUTPUT("OUT3"),
SND_SOC_DAPM_OUTPUT("OUT4"),
SND_SOC_DAPM_INPUT("LINEL"),
SND_SOC_DAPM_INPUT("LINER"),
SND_SOC_DAPM_INPUT("MONOIN"),
SND_SOC_DAPM_INPUT("PCBEEP"),
SND_SOC_DAPM_INPUT("MIC1"),
SND_SOC_DAPM_INPUT("MIC2A"),
SND_SOC_DAPM_INPUT("MIC2B"),
SND_SOC_DAPM_VMID("VMID"),
};

static const struct snd_soc_dapm_route audio_map[] = {
	/* left HP mixer */
	{"Left HP Mixer", "PC Beep Playback Switch", "PCBEEP"},
	{"Left HP Mixer", "Voice Playback Switch",   "Voice DAC"},
	{"Left HP Mixer", "Aux Playback Switch",     "Aux DAC"},
	{"Left HP Mixer", "Bypass Playback Switch",  "Left Line In"},
	{"Left HP Mixer", "PCM Playback Switch",     "Left DAC"},
	{"Left HP Mixer", "MonoIn Playback Switch",  "Mono In"},
	{"Left HP Mixer", NULL,  "Capture Headphone Mux"},

	/* right HP mixer */
	{"Right HP Mixer", "PC Beep Playback Switch", "PCBEEP"},
	{"Right HP Mixer", "Voice Playback Switch",   "Voice DAC"},
	{"Right HP Mixer", "Aux Playback Switch",     "Aux DAC"},
	{"Right HP Mixer", "Bypass Playback Switch",  "Right Line In"},
	{"Right HP Mixer", "PCM Playback Switch",     "Right DAC"},
	{"Right HP Mixer", "MonoIn Playback Switch",  "Mono In"},
	{"Right HP Mixer", NULL,  "Capture Headphone Mux"},

	/* virtual mixer - mixes left & right channels for spk and mono */
	{"AC97 Mixer", NULL, "Left DAC"},
	{"AC97 Mixer", NULL, "Right DAC"},
	{"Line Mixer", NULL, "Right Line In"},
	{"Line Mixer", NULL, "Left Line In"},
	{"HP Mixer", NULL, "Left HP Mixer"},
	{"HP Mixer", NULL, "Right HP Mixer"},
	{"Capture Mixer", NULL, "Left Capture Source"},
	{"Capture Mixer", NULL, "Right Capture Source"},

	/* speaker mixer */
	{"Speaker Mixer", "PC Beep Playback Switch", "PCBEEP"},
	{"Speaker Mixer", "Voice Playback Switch",   "Voice DAC"},
	{"Speaker Mixer", "Aux Playback Switch",     "Aux DAC"},
	{"Speaker Mixer", "Bypass Playback Switch",  "Line Mixer"},
	{"Speaker Mixer", "PCM Playback Switch",     "AC97 Mixer"},
	{"Speaker Mixer", "MonoIn Playback Switch",  "Mono In"},

	/* mono mixer */
	{"Mono Mixer", "PC Beep Playback Switch", "PCBEEP"},
	{"Mono Mixer", "Voice Playback Switch",   "Voice DAC"},
	{"Mono Mixer", "Aux Playback Switch",     "Aux DAC"},
	{"Mono Mixer", "Bypass Playback Switch",  "Line Mixer"},
	{"Mono Mixer", "PCM Playback Switch",     "AC97 Mixer"},
	{"Mono Mixer", "Mic 1 Sidetone Switch", "Mic A PGA"},
	{"Mono Mixer", "Mic 2 Sidetone Switch", "Mic B PGA"},
	{"Mono Mixer", NULL,  "Capture Mono Mux"},

	/* DAC inv mux 1 */
	{"DAC Inv Mux 1", "Mono", "Mono Mixer"},
	{"DAC Inv Mux 1", "Speaker", "Speaker Mixer"},
	{"DAC Inv Mux 1", "Left Headphone", "Left HP Mixer"},
	{"DAC Inv Mux 1", "Right Headphone", "Right HP Mixer"},
	{"DAC Inv Mux 1", "Headphone Mono", "HP Mixer"},

	/* DAC inv mux 2 */
	{"DAC Inv Mux 2", "Mono", "Mono Mixer"},
	{"DAC Inv Mux 2", "Speaker", "Speaker Mixer"},
	{"DAC Inv Mux 2", "Left Headphone", "Left HP Mixer"},
	{"DAC Inv Mux 2", "Right Headphone", "Right HP Mixer"},
	{"DAC Inv Mux 2", "Headphone Mono", "HP Mixer"},

	/* headphone left mux */
	{"Left Headphone Out Mux", "Headphone", "Left HP Mixer"},

	/* headphone right mux */
	{"Right Headphone Out Mux", "Headphone", "Right HP Mixer"},

	/* speaker left mux */
	{"Left Speaker Out Mux", "Headphone", "Left HP Mixer"},
	{"Left Speaker Out Mux", "Speaker", "Speaker Mixer"},
	{"Left Speaker Out Mux", "Inv", "DAC Inv Mux 1"},

	/* speaker right mux */
	{"Right Speaker Out Mux", "Headphone", "Right HP Mixer"},
	{"Right Speaker Out Mux", "Speaker", "Speaker Mixer"},
	{"Right Speaker Out Mux", "Inv", "DAC Inv Mux 2"},

	/* mono mux */
	{"Mono Out Mux", "Mono", "Mono Mixer"},
	{"Mono Out Mux", "Inv", "DAC Inv Mux 1"},

	/* out 3 mux */
	{"Out 3 Mux", "Inv 1", "DAC Inv Mux 1"},

	/* out 4 mux */
	{"Out 4 Mux", "Inv 2", "DAC Inv Mux 2"},

	/* output pga */
	{"HPL", NULL, "Left Headphone"},
	{"Left Headphone", NULL, "Left Headphone Out Mux"},
	{"HPR", NULL, "Right Headphone"},
	{"Right Headphone", NULL, "Right Headphone Out Mux"},
	{"OUT3", NULL, "Out 3"},
	{"Out 3", NULL, "Out 3 Mux"},
	{"OUT4", NULL, "Out 4"},
	{"Out 4", NULL, "Out 4 Mux"},
	{"SPKL", NULL, "Left Speaker"},
	{"Left Speaker", NULL, "Left Speaker Out Mux"},
	{"SPKR", NULL, "Right Speaker"},
	{"Right Speaker", NULL, "Right Speaker Out Mux"},
	{"MONO", NULL, "Mono Out"},
	{"Mono Out", NULL, "Mono Out Mux"},

	/* input pga */
	{"Left Line In", NULL, "LINEL"},
	{"Right Line In", NULL, "LINER"},
	{"Mono In", NULL, "MONOIN"},
	{"Mic A PGA", NULL, "Mic A Pre Amp"},
	{"Mic B PGA", NULL, "Mic B Pre Amp"},

	/* left capture select */
	{"Left Capture Source", "Mic 1", "Mic A Pre Amp"},
	{"Left Capture Source", "Mic 2", "Mic B Pre Amp"},
	{"Left Capture Source", "Line", "LINEL"},
	{"Left Capture Source", "Mono In", "MONOIN"},
	{"Left Capture Source", "Headphone", "Left HP Mixer"},
	{"Left Capture Source", "Speaker", "Speaker Mixer"},
	{"Left Capture Source", "Mono Out", "Mono Mixer"},

	/* right capture select */
	{"Right Capture Source", "Mic 1", "Mic A Pre Amp"},
	{"Right Capture Source", "Mic 2", "Mic B Pre Amp"},
	{"Right Capture Source", "Line", "LINER"},
	{"Right Capture Source", "Mono In", "MONOIN"},
	{"Right Capture Source", "Headphone", "Right HP Mixer"},
	{"Right Capture Source", "Speaker", "Speaker Mixer"},
	{"Right Capture Source", "Mono Out", "Mono Mixer"},

	/* left ADC */
	{"Left ADC", NULL, "Left Capture Source"},

	/* right ADC */
	{"Right ADC", NULL, "Right Capture Source"},

	/* mic */
	{"Mic A Pre Amp", NULL, "Mic A Source"},
	{"Mic A Source", "Mic 1", "MIC1"},
	{"Mic A Source", "Mic 2 A", "MIC2A"},
	{"Mic A Source", "Mic 2 B", "Mic B Source"},
	{"Mic B Pre Amp", "MPB", "Mic B Source"},
	{"Mic B Source", NULL, "MIC2B"},

	/* headphone capture */
	{"Capture Headphone Mux", "Stereo", "Capture Mixer"},
	{"Capture Headphone Mux", "Left", "Left Capture Source"},
	{"Capture Headphone Mux", "Right", "Right Capture Source"},

	/* mono capture */
	{"Capture Mono Mux", "Stereo", "Capture Mixer"},
	{"Capture Mono Mux", "Left", "Left Capture Source"},
	{"Capture Mono Mux", "Right", "Right Capture Source"},
};

static int wm9713_add_widgets(struct snd_soc_codec *codec)
{
	snd_soc_dapm_new_controls(codec, wm9713_dapm_widgets,
				  ARRAY_SIZE(wm9713_dapm_widgets));

	snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));

	snd_soc_dapm_new_widgets(codec);
	return 0;
}

static unsigned int ac97_read(struct snd_soc_codec *codec,
	unsigned int reg)
{
	u16 *cache = codec->reg_cache;

	if (reg == AC97_RESET || reg == AC97_GPIO_STATUS ||
		reg == AC97_VENDOR_ID1 || reg == AC97_VENDOR_ID2 ||
		reg == AC97_CD)
		return soc_ac97_ops.read(codec->ac97, reg);
	else {
		reg = reg >> 1;

		if (reg > (ARRAY_SIZE(wm9713_reg)))
			return -EIO;

		return cache[reg];
	}
}

static int ac97_write(struct snd_soc_codec *codec, unsigned int reg,
	unsigned int val)
{
	u16 *cache = codec->reg_cache;
	if (reg < 0x7c)
		soc_ac97_ops.write(codec->ac97, reg, val);
	reg = reg >> 1;
	if (reg <= (ARRAY_SIZE(wm9713_reg)))
		cache[reg] = val;

	return 0;
}

/* PLL divisors */
struct _pll_div {
	u32 divsel:1;
	u32 divctl:1;
	u32 lf:1;
	u32 n:4;
	u32 k:24;
};

/* The size in bits of the PLL divide multiplied by 10
 * to allow rounding later */
#define FIXED_PLL_SIZE ((1 << 22) * 10)

static void pll_factors(struct _pll_div *pll_div, unsigned int source)
{
	u64 Kpart;
	unsigned int K, Ndiv, Nmod, target;

	/* The the PLL output is always 98.304MHz. */
	target = 98304000;

	/* If the input frequency is over 14.4MHz then scale it down. */
	if (source > 14400000) {
		source >>= 1;
		pll_div->divsel = 1;

		if (source > 14400000) {
			source >>= 1;
			pll_div->divctl = 1;
		} else
			pll_div->divctl = 0;

	} else {
		pll_div->divsel = 0;
		pll_div->divctl = 0;
	}

	/* Low frequency sources require an additional divide in the
	 * loop.
	 */
	if (source < 8192000) {
		pll_div->lf = 1;
		target >>= 2;
	} else
		pll_div->lf = 0;

	Ndiv = target / source;
	if ((Ndiv < 5) || (Ndiv > 12))
		printk(KERN_WARNING
			"WM9713 PLL N value %d out of recommended range!\n",
			Ndiv);

	pll_div->n = Ndiv;
	Nmod = target % source;
	Kpart = FIXED_PLL_SIZE * (long long)Nmod;

	do_div(Kpart, source);

	K = Kpart & 0xFFFFFFFF;

	/* Check if we need to round */
	if ((K % 10) >= 5)
		K += 5;

	/* Move down to proper range now rounding is done */
	K /= 10;

	pll_div->k = K;
}

/**
 * Please note that changing the PLL input frequency may require
 * resynchronisation with the AC97 controller.
 */
static int wm9713_set_pll(struct snd_soc_codec *codec,
	int pll_id, unsigned int freq_in, unsigned int freq_out)
{
	struct wm9713_priv *wm9713 = codec->private_data;
	u16 reg, reg2;
	struct _pll_div pll_div;

	/* turn PLL off ? */
	if (freq_in == 0 || freq_out == 0) {
		/* disable PLL power and select ext source */
		reg = ac97_read(codec, AC97_HANDSET_RATE);
		ac97_write(codec, AC97_HANDSET_RATE, reg | 0x0080);
		reg = ac97_read(codec, AC97_EXTENDED_MID);
		ac97_write(codec, AC97_EXTENDED_MID, reg | 0x0200);
		wm9713->pll_out = 0;
		return 0;
	}

	pll_factors(&pll_div, freq_in);

	if (pll_div.k == 0) {
		reg = (pll_div.n << 12) | (pll_div.lf << 11) |
			(pll_div.divsel << 9) | (pll_div.divctl << 8);
		ac97_write(codec, AC97_LINE1_LEVEL, reg);
	} else {
		/* write the fractional k to the reg 0x46 pages */
		reg2 = (pll_div.n << 12) | (pll_div.lf << 11) | (1 << 10) |
			(pll_div.divsel << 9) | (pll_div.divctl << 8);

		/* K [21:20] */
		reg = reg2 | (0x5 << 4) | (pll_div.k >> 20);
		ac97_write(codec, AC97_LINE1_LEVEL, reg);

		/* K [19:16] */
		reg = reg2 | (0x4 << 4) | ((pll_div.k >> 16) & 0xf);
		ac97_write(codec, AC97_LINE1_LEVEL, reg);

		/* K [15:12] */
		reg = reg2 | (0x3 << 4) | ((pll_div.k >> 12) & 0xf);
		ac97_write(codec, AC97_LINE1_LEVEL, reg);

		/* K [11:8] */
		reg = reg2 | (0x2 << 4) | ((pll_div.k >> 8) & 0xf);
		ac97_write(codec, AC97_LINE1_LEVEL, reg);

		/* K [7:4] */
		reg = reg2 | (0x1 << 4) | ((pll_div.k >> 4) & 0xf);
		ac97_write(codec, AC97_LINE1_LEVEL, reg);

		reg = reg2 | (0x0 << 4) | (pll_div.k & 0xf); /* K [3:0] */
		ac97_write(codec, AC97_LINE1_LEVEL, reg);
	}

	/* turn PLL on and select as source */
	reg = ac97_read(codec, AC97_EXTENDED_MID);
	ac97_write(codec, AC97_EXTENDED_MID, reg & 0xfdff);
	reg = ac97_read(codec, AC97_HANDSET_RATE);
	ac97_write(codec, AC97_HANDSET_RATE, reg & 0xff7f);
	wm9713->pll_out = freq_out;
	wm9713->pll_in = freq_in;

	/* wait 10ms AC97 link frames for the link to stabilise */
	schedule_timeout_interruptible(msecs_to_jiffies(10));
	return 0;
}

static int wm9713_set_dai_pll(struct snd_soc_codec_dai *codec_dai,
		int pll_id, unsigned int freq_in, unsigned int freq_out)
{
	struct snd_soc_codec *codec = codec_dai->codec;
	return wm9713_set_pll(codec, pll_id, freq_in, freq_out);
}

/*
 * Tristate the PCM DAI lines, tristate can be disabled by calling
 * wm9713_set_dai_fmt()
 */
static int wm9713_set_dai_tristate(struct snd_soc_codec_dai *codec_dai,
	int tristate)
{
	struct snd_soc_codec *codec = codec_dai->codec;
	u16 reg = ac97_read(codec, AC97_CENTER_LFE_MASTER) & 0x9fff;

	if (tristate)
		ac97_write(codec, AC97_CENTER_LFE_MASTER, reg);

	return 0;
}

/*
 * Configure WM9713 clock dividers.
 * Voice DAC needs 256 FS
 */
static int wm9713_set_dai_clkdiv(struct snd_soc_codec_dai *codec_dai,
		int div_id, int div)
{
	struct snd_soc_codec *codec = codec_dai->codec;
	u16 reg;

	switch (div_id) {
	case WM9713_PCMCLK_DIV:
		reg = ac97_read(codec, AC97_HANDSET_RATE) & 0xf0ff;
		ac97_write(codec, AC97_HANDSET_RATE, reg | div);
		break;
	case WM9713_CLKA_MULT:
		reg = ac97_read(codec, AC97_HANDSET_RATE) & 0xfffd;
		ac97_write(codec, AC97_HANDSET_RATE, reg | div);
		break;
	case WM9713_CLKB_MULT:
		reg = ac97_read(codec, AC97_HANDSET_RATE) & 0xfffb;
		ac97_write(codec, AC97_HANDSET_RATE, reg | div);
		break;
	case WM9713_HIFI_DIV:
		reg = ac97_read(codec, AC97_HANDSET_RATE) & 0x8fff;
		ac97_write(codec, AC97_HANDSET_RATE, reg | div);
		break;
	case WM9713_PCMBCLK_DIV:
		reg = ac97_read(codec, AC97_CENTER_LFE_MASTER) & 0xf1ff;
		ac97_write(codec, AC97_CENTER_LFE_MASTER, reg | div);
		break;
	case WM9713_PCMCLK_PLL_DIV:
		reg = ac97_read(codec, AC97_LINE1_LEVEL) & 0xff80;
		ac97_write(codec, AC97_LINE1_LEVEL, reg | 0x60 | div);
		break;
	case WM9713_HIFI_PLL_DIV:
		reg = ac97_read(codec, AC97_LINE1_LEVEL) & 0xff80;
		ac97_write(codec, AC97_LINE1_LEVEL, reg | 0x70 | div);
		break;
	default:
		return -EINVAL;
	}

	return 0;
}

static int wm9713_set_dai_fmt(struct snd_soc_codec_dai *codec_dai,
		unsigned int fmt)
{
	struct snd_soc_codec *codec = codec_dai->codec;
	u16 gpio = ac97_read(codec, AC97_GPIO_CFG) & 0xffc5;
	u16 reg = 0x8000;

	/* clock masters */
	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
	case SND_SOC_DAIFMT_CBM_CFM:
		reg |= 0x4000;
		gpio |= 0x0010;
		break;
	case SND_SOC_DAIFMT_CBM_CFS:
		reg |= 0x6000;
		gpio |= 0x0018;
		break;
	case SND_SOC_DAIFMT_CBS_CFS:
		reg |= 0x0200;
		gpio |= 0x001a;
		break;
	case SND_SOC_DAIFMT_CBS_CFM:
		gpio |= 0x0012;
		break;
	}

	/* clock inversion */
	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
	case SND_SOC_DAIFMT_IB_IF:
		reg |= 0x00c0;
		break;
	case SND_SOC_DAIFMT_IB_NF:
		reg |= 0x0080;
		break;
	case SND_SOC_DAIFMT_NB_IF:
		reg |= 0x0040;
		break;
	}

	/* DAI format */
	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
	case SND_SOC_DAIFMT_I2S:
		reg |= 0x0002;
		break;
	case SND_SOC_DAIFMT_RIGHT_J:
		break;
	case SND_SOC_DAIFMT_LEFT_J:
		reg |= 0x0001;
		break;
	case SND_SOC_DAIFMT_DSP_A:
		reg |= 0x0003;
		break;
	case SND_SOC_DAIFMT_DSP_B:
		reg |= 0x0043;
		break;
	}

	ac97_write(codec, AC97_GPIO_CFG, gpio);
	ac97_write(codec, AC97_CENTER_LFE_MASTER, reg);
	return 0;
}

static int wm9713_pcm_hw_params(struct snd_pcm_substream *substream,
	struct snd_pcm_hw_params *params)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_device *socdev = rtd->socdev;
	struct snd_soc_codec *codec = socdev->codec;
	u16 reg = ac97_read(codec, AC97_CENTER_LFE_MASTER) & 0xfff3;

	switch (params_format(params)) {
	case SNDRV_PCM_FORMAT_S16_LE:
		break;
	case SNDRV_PCM_FORMAT_S20_3LE:
		reg |= 0x0004;
		break;
	case SNDRV_PCM_FORMAT_S24_LE:
		reg |= 0x0008;
		break;
	case SNDRV_PCM_FORMAT_S32_LE:
		reg |= 0x000c;
		break;
	}

	/* enable PCM interface in master mode */
	ac97_write(codec, AC97_CENTER_LFE_MASTER, reg);
	return 0;
}

static void wm9713_voiceshutdown(struct snd_pcm_substream *substream)
{
    struct snd_soc_pcm_runtime *rtd = substream->private_data;
    struct snd_soc_device *socdev = rtd->socdev;
    struct snd_soc_codec *codec = socdev->codec;
    u16 status;

    /* Gracefully shut down the voice interface. */
    status = ac97_read(codec, AC97_EXTENDED_STATUS) | 0x1000;
    ac97_write(codec, AC97_HANDSET_RATE, 0x0280);
    schedule_timeout_interruptible(msecs_to_jiffies(1));
    ac97_write(codec, AC97_HANDSET_RATE, 0x0F80);
    ac97_write(codec, AC97_EXTENDED_MID, status);
}

static int ac97_hifi_prepare(struct snd_pcm_substream *substream)
{
	struct snd_pcm_runtime *runtime = substream->runtime;
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_device *socdev = rtd->socdev;
	struct snd_soc_codec *codec = socdev->codec;
	int reg;
	u16 vra;

	vra = ac97_read(codec, AC97_EXTENDED_STATUS);
	ac97_write(codec, AC97_EXTENDED_STATUS, vra | 0x1);

	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
		reg = AC97_PCM_FRONT_DAC_RATE;
	else
		reg = AC97_PCM_LR_ADC_RATE;

	return ac97_write(codec, reg, runtime->rate);
}

static int ac97_aux_prepare(struct snd_pcm_substream *substream)
{
	struct snd_pcm_runtime *runtime = substream->runtime;
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_device *socdev = rtd->socdev;
	struct snd_soc_codec *codec = socdev->codec;
	u16 vra, xsle;

	vra = ac97_read(codec, AC97_EXTENDED_STATUS);
	ac97_write(codec, AC97_EXTENDED_STATUS, vra | 0x1);
	xsle = ac97_read(codec, AC97_PCI_SID);
	ac97_write(codec, AC97_PCI_SID, xsle | 0x8000);

	if (substream->stream != SNDRV_PCM_STREAM_PLAYBACK)
		return -ENODEV;

	return ac97_write(codec, AC97_PCM_SURR_DAC_RATE, runtime->rate);
}

#define WM9713_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
		SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 |\
		SNDRV_PCM_RATE_48000)

#define WM9713_PCM_FORMATS \
	(SNDRV_PCM_FORMAT_S16_LE | SNDRV_PCM_FORMAT_S20_3LE | \
	 SNDRV_PCM_FORMAT_S24_LE)

struct snd_soc_codec_dai wm9713_dai[] = {
{
	.name = "AC97 HiFi",
	.type = SND_SOC_DAI_AC97_BUS,
	.playback = {
		.stream_name = "HiFi Playback",
		.channels_min = 1,
		.channels_max = 2,
		.rates = WM9713_RATES,
		.formats = SNDRV_PCM_FMTBIT_S16_LE,},
	.capture = {
		.stream_name = "HiFi Capture",
		.channels_min = 1,
		.channels_max = 2,
		.rates = WM9713_RATES,
		.formats = SNDRV_PCM_FMTBIT_S16_LE,},
	.ops = {
		.prepare = ac97_hifi_prepare,},
	.dai_ops = {
		.set_clkdiv = wm9713_set_dai_clkdiv,
		.set_pll = wm9713_set_dai_pll,},
	},
	{
	.name = "AC97 Aux",
	.playback = {
		.stream_name = "Aux Playback",
		.channels_min = 1,
		.channels_max = 1,
		.rates = WM9713_RATES,
		.formats = SNDRV_PCM_FMTBIT_S16_LE,},
	.ops = {
		.prepare = ac97_aux_prepare,},
	.dai_ops = {
		.set_clkdiv = wm9713_set_dai_clkdiv,
		.set_pll = wm9713_set_dai_pll,},
	},
	{
	.name = "WM9713 Voice",
	.playback = {
		.stream_name = "Voice Playback",
		.channels_min = 1,
		.channels_max = 1,
		.rates = WM9713_RATES,
		.formats = WM9713_PCM_FORMATS,},
	.capture = {
		.stream_name = "Voice Capture",
		.channels_min = 1,
		.channels_max = 2,
		.rates = WM9713_RATES,
		.formats = WM9713_PCM_FORMATS,},
	.ops = {
		.hw_params = wm9713_pcm_hw_params,
		.shutdown = wm9713_voiceshutdown,},
	.dai_ops = {
		.set_clkdiv = wm9713_set_dai_clkdiv,
		.set_pll = wm9713_set_dai_pll,
		.set_fmt = wm9713_set_dai_fmt,
		.set_tristate = wm9713_set_dai_tristate,
	},
	},
};
EXPORT_SYMBOL_GPL(wm9713_dai);

int wm9713_reset(struct snd_soc_codec *codec, int try_warm)
{
	if (try_warm && soc_ac97_ops.warm_reset) {
		soc_ac97_ops.warm_reset(codec->ac97);
		if (!(ac97_read(codec, 0) & 0x8000))
			return 1;
	}

	soc_ac97_ops.reset(codec->ac97);
	if (ac97_read(codec, 0) & 0x8000)
		return -EIO;
	return 0;
}
EXPORT_SYMBOL_GPL(wm9713_reset);

static int wm9713_set_bias_level(struct snd_soc_codec *codec,
				 enum snd_soc_bias_level level)
{
	u16 reg;

	switch (level) {
	case SND_SOC_BIAS_ON:
		/* enable thermal shutdown */
		reg = ac97_read(codec, AC97_EXTENDED_MID) & 0x1bff;
		ac97_write(codec, AC97_EXTENDED_MID, reg);
		break;
	case SND_SOC_BIAS_PREPARE:
		break;
	case SND_SOC_BIAS_STANDBY:
		/* enable master bias and vmid */
		reg = ac97_read(codec, AC97_EXTENDED_MID) & 0x3bff;
		ac97_write(codec, AC97_EXTENDED_MID, reg);
		ac97_write(codec, AC97_POWERDOWN, 0x0000);
		break;
	case SND_SOC_BIAS_OFF:
		/* disable everything including AC link */
		ac97_write(codec, AC97_EXTENDED_MID, 0xffff);
		ac97_write(codec, AC97_EXTENDED_MSTATUS, 0xffff);
		ac97_write(codec, AC97_POWERDOWN, 0xffff);
		break;
	}
	codec->bias_level = level;
	return 0;
}

static int wm9713_soc_suspend(struct platform_device *pdev,
	pm_message_t state)
{
	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
	struct snd_soc_codec *codec = socdev->codec;
	u16 reg;

	/* Disable everything except touchpanel - that will be handled
	 * by the touch driver and left disabled if touch is not in
	 * use. */
	reg = ac97_read(codec, AC97_EXTENDED_MID);
	ac97_write(codec, AC97_EXTENDED_MID, reg | 0x7fff);
	ac97_write(codec, AC97_EXTENDED_MSTATUS, 0xffff);
	ac97_write(codec, AC97_POWERDOWN, 0x6f00);
	ac97_write(codec, AC97_POWERDOWN, 0xffff);

	return 0;
}

static int wm9713_soc_resume(struct platform_device *pdev)
{
	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
	struct snd_soc_codec *codec = socdev->codec;
	struct wm9713_priv *wm9713 = codec->private_data;
	int i, ret;
	u16 *cache = codec->reg_cache;

	ret = wm9713_reset(codec, 1);
	if (ret < 0) {
		printk(KERN_ERR "could not reset AC97 codec\n");
		return ret;
	}

	wm9713_set_bias_level(codec, SND_SOC_BIAS_STANDBY);

	/* do we need to re-start the PLL ? */
	if (wm9713->pll_out)
		wm9713_set_pll(codec, 0, wm9713->pll_in, wm9713->pll_out);

	/* only synchronise the codec if warm reset failed */
	if (ret == 0) {
		for (i = 2; i < ARRAY_SIZE(wm9713_reg) << 1; i += 2) {
			if (i == AC97_POWERDOWN || i == AC97_EXTENDED_MID ||
				i == AC97_EXTENDED_MSTATUS || i > 0x66)
				continue;
			soc_ac97_ops.write(codec->ac97, i, cache[i>>1]);
		}
	}

	if (codec->suspend_bias_level == SND_SOC_BIAS_ON)
		wm9713_set_bias_level(codec, SND_SOC_BIAS_ON);

	return ret;
}

static int wm9713_soc_probe(struct platform_device *pdev)
{
	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
	struct snd_soc_codec *codec;
	int ret = 0, reg;

	printk(KERN_INFO "WM9713/WM9714 SoC Audio Codec %s\n", WM9713_VERSION);

	socdev->codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
	if (socdev->codec == NULL)
		return -ENOMEM;
	codec = socdev->codec;
	mutex_init(&codec->mutex);

	codec->reg_cache = kmemdup(wm9713_reg, sizeof(wm9713_reg), GFP_KERNEL);
	if (codec->reg_cache == NULL) {
		ret = -ENOMEM;
		goto cache_err;
	}
	codec->reg_cache_size = sizeof(wm9713_reg);
	codec->reg_cache_step = 2;

	codec->private_data = kzalloc(sizeof(struct wm9713_priv), GFP_KERNEL);
	if (codec->private_data == NULL) {
		ret = -ENOMEM;
		goto priv_err;
	}

	codec->name = "WM9713";
	codec->owner = THIS_MODULE;
	codec->dai = wm9713_dai;
	codec->num_dai = ARRAY_SIZE(wm9713_dai);
	codec->write = ac97_write;
	codec->read = ac97_read;
	codec->set_bias_level = wm9713_set_bias_level;
	INIT_LIST_HEAD(&codec->dapm_widgets);
	INIT_LIST_HEAD(&codec->dapm_paths);

	ret = snd_soc_new_ac97_codec(codec, &soc_ac97_ops, 0);
	if (ret < 0)
		goto codec_err;

	/* register pcms */
	ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
	if (ret < 0)
		goto pcm_err;

	/* do a cold reset for the controller and then try
	 * a warm reset followed by an optional cold reset for codec */
	wm9713_reset(codec, 0);
	ret = wm9713_reset(codec, 1);
	if (ret < 0) {
		printk(KERN_ERR "AC97 link error\n");
		goto reset_err;
	}

	wm9713_set_bias_level(codec, SND_SOC_BIAS_STANDBY);

	/* unmute the adc - move to kcontrol */
	reg = ac97_read(codec, AC97_CD) & 0x7fff;
	ac97_write(codec, AC97_CD, reg);

	wm9713_add_controls(codec);
	wm9713_add_widgets(codec);
	ret = snd_soc_register_card(socdev);
	if (ret < 0)
		goto reset_err;
	return 0;

reset_err:
	snd_soc_free_pcms(socdev);

pcm_err:
	snd_soc_free_ac97_codec(codec);

codec_err:
	kfree(codec->private_data);

priv_err:
	kfree(codec->reg_cache);

cache_err:
	kfree(socdev->codec);
	socdev->codec = NULL;
	return ret;
}

static int wm9713_soc_remove(struct platform_device *pdev)
{
	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
	struct snd_soc_codec *codec = socdev->codec;

	if (codec == NULL)
		return 0;

	snd_soc_dapm_free(socdev);
	snd_soc_free_pcms(socdev);
	snd_soc_free_ac97_codec(codec);
	kfree(codec->private_data);
	kfree(codec->reg_cache);
	kfree(codec->dai);
	kfree(codec);
	return 0;
}

struct snd_soc_codec_device soc_codec_dev_wm9713 = {
	.probe = 	wm9713_soc_probe,
	.remove = 	wm9713_soc_remove,
	.suspend =	wm9713_soc_suspend,
	.resume = 	wm9713_soc_resume,
};
EXPORT_SYMBOL_GPL(soc_codec_dev_wm9713);

MODULE_DESCRIPTION("ASoC WM9713/WM9714 driver");
MODULE_AUTHOR("Liam Girdwood");
MODULE_LICENSE("GPL");