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wm9713.c

/*
 * wm9713.c  --  ALSA Soc WM9713 codec support
 *
 * Copyright 2006 Wolfson Microelectronics PLC.
 * Author: Liam Girdwood <lrg@slimlogic.co.uk>
 *
 *  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 */
};

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),
};

static int wm9713_voice_shutdown(struct snd_soc_dapm_widget *w,
                         struct snd_kcontrol *kcontrol, int event)
{
      struct snd_soc_codec *codec = w->codec;
      u16 status, rate;

      BUG_ON(event != SND_SOC_DAPM_PRE_PMD);

      /* Gracefully shut down the voice interface. */
      status = ac97_read(codec, AC97_EXTENDED_MID) | 0x1000;
      rate = ac97_read(codec, AC97_HANDSET_RATE) & 0xF0FF;
      ac97_write(codec, AC97_HANDSET_RATE, rate | 0x0200);
      schedule_timeout_interruptible(msecs_to_jiffies(1));
      ac97_write(codec, AC97_HANDSET_RATE, rate | 0x0F00);
      ac97_write(codec, AC97_EXTENDED_MID, status);

      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_E("Voice DAC", "Voice Playback", AC97_EXTENDED_MID, 12, 1,
               wm9713_voice_shutdown, SND_SOC_DAPM_PRE_PMD),
SND_SOC_DAPM_DAC("Aux DAC", "Aux Playback", AC97_EXTENDED_MID, 11, 1),
SND_SOC_DAPM_PGA("Left ADC", AC97_EXTENDED_MID, 5, 1, NULL, 0),
SND_SOC_DAPM_PGA("Right ADC", AC97_EXTENDED_MID, 4, 1, NULL, 0),
SND_SOC_DAPM_ADC("Left HiFi ADC", "Left HiFi Capture", SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_ADC("Right HiFi ADC", "Right HiFi Capture", SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_ADC("Left Voice ADC", "Left Voice Capture", SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_ADC("Right Voice ADC", "Right Voice Capture", SND_SOC_NOPM, 0, 0),
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"},
      {"Left Voice ADC", NULL, "Left ADC"},
      {"Left HiFi ADC", NULL, "Left ADC"},

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

      /* 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 %u 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) {
            /* 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_in = 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_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_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_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_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_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 |= 0x2000;
            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_dai *dai)
{
      struct snd_soc_codec *codec = dai->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 int ac97_hifi_prepare(struct snd_pcm_substream *substream,
                       struct snd_soc_dai *dai)
{
      struct snd_soc_codec *codec = dai->codec;
      struct snd_pcm_runtime *runtime = substream->runtime;
      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_soc_dai *dai)
{
      struct snd_soc_codec *codec = dai->codec;
      struct snd_pcm_runtime *runtime = substream->runtime;
      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_RATES (SNDRV_PCM_RATE_8000  |      \
                    SNDRV_PCM_RATE_11025 |      \
                    SNDRV_PCM_RATE_16000 |      \
                    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)

static struct snd_soc_dai_ops wm9713_dai_ops_hifi = {
      .prepare    = ac97_hifi_prepare,
      .set_clkdiv = wm9713_set_dai_clkdiv,
      .set_pll    = wm9713_set_dai_pll,
};

static struct snd_soc_dai_ops wm9713_dai_ops_aux = {
      .prepare    = ac97_aux_prepare,
      .set_clkdiv = wm9713_set_dai_clkdiv,
      .set_pll    = wm9713_set_dai_pll,
};

static struct snd_soc_dai_ops wm9713_dai_ops_voice = {
      .hw_params  = wm9713_pcm_hw_params,
      .set_clkdiv = wm9713_set_dai_clkdiv,
      .set_pll    = wm9713_set_dai_pll,
      .set_fmt    = wm9713_set_dai_fmt,
      .set_tristate     = wm9713_set_dai_tristate,
};

struct snd_soc_dai wm9713_dai[] = {
{
      .name = "AC97 HiFi",
      .ac97_control = 1,
      .playback = {
            .stream_name = "HiFi Playback",
            .channels_min = 1,
            .channels_max = 2,
            .rates = WM9713_RATES,
            .formats = SND_SOC_STD_AC97_FMTS,},
      .capture = {
            .stream_name = "HiFi Capture",
            .channels_min = 1,
            .channels_max = 2,
            .rates = WM9713_RATES,
            .formats = SND_SOC_STD_AC97_FMTS,},
      .ops = &wm9713_dai_ops_hifi,
      },
      {
      .name = "AC97 Aux",
      .playback = {
            .stream_name = "Aux Playback",
            .channels_min = 1,
            .channels_max = 1,
            .rates = WM9713_RATES,
            .formats = SND_SOC_STD_AC97_FMTS,},
      .ops = &wm9713_dai_ops_aux,
      },
      {
      .name = "WM9713 Voice",
      .playback = {
            .stream_name = "Voice Playback",
            .channels_min = 1,
            .channels_max = 1,
            .rates = WM9713_PCM_RATES,
            .formats = WM9713_PCM_FORMATS,},
      .capture = {
            .stream_name = "Voice Capture",
            .channels_min = 1,
            .channels_max = 2,
            .rates = WM9713_PCM_RATES,
            .formats = WM9713_PCM_FORMATS,},
      .ops = &wm9713_dai_ops_voice,
      .symmetric_rates = 1,
      },
};
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) == wm9713_reg[0])
                  return 1;
      }

      soc_ac97_ops.reset(codec->ac97);
      if (soc_ac97_ops.warm_reset)
            soc_ac97_ops.warm_reset(codec->ac97);
      if (ac97_read(codec, 0) != wm9713_reg[0])
            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->card->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->card->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_in)
            wm9713_set_pll(codec, 0, wm9713->pll_in, 0);

      /* 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->card->codec = kzalloc(sizeof(struct snd_soc_codec),
                              GFP_KERNEL);
      if (socdev->card->codec == NULL)
            return -ENOMEM;
      codec = socdev->card->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 "Failed to reset WM9713: 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);

      snd_soc_add_controls(codec, wm9713_snd_ac97_controls,
                        ARRAY_SIZE(wm9713_snd_ac97_controls));
      wm9713_add_widgets(codec);
      ret = snd_soc_init_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->card->codec);
      socdev->card->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->card->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);
      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");

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