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root/sound/soc/codecs/wm9713.c

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DEFINITIONS

This source file includes following definitions.
  1. wm9713_add_controls
  2. mixer_event
  3. wm9713_add_widgets
  4. ac97_read
  5. ac97_write
  6. pll_factors
  7. wm9713_set_pll
  8. wm9713_set_dai_pll
  9. wm9713_set_dai_tristate
  10. wm9713_set_dai_clkdiv
  11. wm9713_set_dai_fmt
  12. wm9713_pcm_hw_params
  13. wm9713_voiceshutdown
  14. ac97_hifi_prepare
  15. ac97_aux_prepare
  16. wm9713_reset
  17. wm9713_set_bias_level
  18. wm9713_soc_suspend
  19. wm9713_soc_resume
  20. wm9713_soc_probe
  21. wm9713_soc_remove

/*
 * 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 */
        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_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 %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_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_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_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)

struct snd_soc_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_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 = {
                .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) == wm9713_reg[0])
                        return 1;
        }

        soc_ac97_ops.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->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");

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