da7210.c

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/*
 * DA7210 ALSA Soc codec driver
 *
 * Copyright (c) 2009 Dialog Semiconductor
 * Written by David Chen <[email protected]>
 *
 * Copyright (C) 2009 Renesas Solutions Corp.
 * Cleanups by Kuninori Morimoto <[email protected]>
 *
 * Tested on SuperH Ecovec24 board with S16/S24 LE in 48KHz using I2S
 *
 * 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.
 */

#include <linux/delay.h>
#include <linux/i2c.h>
#include <linux/spi/spi.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/initval.h>
#include <sound/tlv.h>

/* DA7210 register space */
#define DA7210_PAGE_CONTROL     0x00
#define DA7210_CONTROL          0x01
#define DA7210_STATUS           0x02
#define DA7210_STARTUP1         0x03
#define DA7210_STARTUP2         0x04
#define DA7210_STARTUP3         0x05
#define DA7210_MIC_L            0x07
#define DA7210_MIC_R            0x08
#define DA7210_AUX1_L           0x09
#define DA7210_AUX1_R           0x0A
#define DA7210_AUX2         0x0B
#define DA7210_IN_GAIN          0x0C
#define DA7210_INMIX_L          0x0D
#define DA7210_INMIX_R          0x0E
#define DA7210_ADC_HPF          0x0F
#define DA7210_ADC          0x10
#define DA7210_ADC_EQ1_2        0X11
#define DA7210_ADC_EQ3_4        0x12
#define DA7210_ADC_EQ5          0x13
#define DA7210_DAC_HPF          0x14
#define DA7210_DAC_L            0x15
#define DA7210_DAC_R            0x16
#define DA7210_DAC_SEL          0x17
#define DA7210_SOFTMUTE         0x18
#define DA7210_DAC_EQ1_2        0x19
#define DA7210_DAC_EQ3_4        0x1A
#define DA7210_DAC_EQ5          0x1B
#define DA7210_OUTMIX_L         0x1C
#define DA7210_OUTMIX_R         0x1D
#define DA7210_OUT1_L           0x1E
#define DA7210_OUT1_R           0x1F
#define DA7210_OUT2         0x20
#define DA7210_HP_L_VOL         0x21
#define DA7210_HP_R_VOL         0x22
#define DA7210_HP_CFG           0x23
#define DA7210_ZERO_CROSS       0x24
#define DA7210_DAI_SRC_SEL      0x25
#define DA7210_DAI_CFG1         0x26
#define DA7210_DAI_CFG3         0x28
#define DA7210_PLL_DIV1         0x29
#define DA7210_PLL_DIV2         0x2A
#define DA7210_PLL_DIV3         0x2B
#define DA7210_PLL          0x2C
#define DA7210_ALC_MAX          0x83
#define DA7210_ALC_MIN          0x84
#define DA7210_ALC_NOIS         0x85
#define DA7210_ALC_ATT          0x86
#define DA7210_ALC_REL          0x87
#define DA7210_ALC_DEL          0x88
#define DA7210_A_HID_UNLOCK     0x8A
#define DA7210_A_TEST_UNLOCK        0x8B
#define DA7210_A_PLL1           0x90
#define DA7210_A_CP_MODE        0xA7

/* STARTUP1 bit fields */
#define DA7210_SC_MST_EN        (1 << 0)

/* MIC_L bit fields */
#define DA7210_MICBIAS_EN       (1 << 6)
#define DA7210_MIC_L_EN         (1 << 7)

/* MIC_R bit fields */
#define DA7210_MIC_R_EN         (1 << 7)

/* INMIX_L bit fields */
#define DA7210_IN_L_EN          (1 << 7)

/* INMIX_R bit fields */
#define DA7210_IN_R_EN          (1 << 7)

/* ADC bit fields */
#define DA7210_ADC_ALC_EN       (1 << 0)
#define DA7210_ADC_L_EN         (1 << 3)
#define DA7210_ADC_R_EN         (1 << 7)

/* DAC/ADC HPF fields */
#define DA7210_VOICE_F0_MASK        (0x7 << 4)
#define DA7210_VOICE_F0_25      (1 << 4)
#define DA7210_VOICE_EN         (1 << 7)

/* DAC_SEL bit fields */
#define DA7210_DAC_L_SRC_DAI_L      (4 << 0)
#define DA7210_DAC_L_EN         (1 << 3)
#define DA7210_DAC_R_SRC_DAI_R      (5 << 4)
#define DA7210_DAC_R_EN         (1 << 7)

/* OUTMIX_L bit fields */
#define DA7210_OUT_L_EN         (1 << 7)

/* OUTMIX_R bit fields */
#define DA7210_OUT_R_EN         (1 << 7)

/* HP_CFG bit fields */
#define DA7210_HP_2CAP_MODE     (1 << 1)
#define DA7210_HP_SENSE_EN      (1 << 2)
#define DA7210_HP_L_EN          (1 << 3)
#define DA7210_HP_MODE          (1 << 6)
#define DA7210_HP_R_EN          (1 << 7)

/* DAI_SRC_SEL bit fields */
#define DA7210_DAI_OUT_L_SRC        (6 << 0)
#define DA7210_DAI_OUT_R_SRC        (7 << 4)

/* DAI_CFG1 bit fields */
#define DA7210_DAI_WORD_S16_LE      (0 << 0)
#define DA7210_DAI_WORD_S20_3LE     (1 << 0)
#define DA7210_DAI_WORD_S24_LE      (2 << 0)
#define DA7210_DAI_WORD_S32_LE      (3 << 0)
#define DA7210_DAI_FLEN_64BIT       (1 << 2)
#define DA7210_DAI_MODE_SLAVE       (0 << 7)
#define DA7210_DAI_MODE_MASTER      (1 << 7)

/* DAI_CFG3 bit fields */
#define DA7210_DAI_FORMAT_I2SMODE   (0 << 0)
#define DA7210_DAI_FORMAT_LEFT_J    (1 << 0)
#define DA7210_DAI_FORMAT_RIGHT_J   (2 << 0)
#define DA7210_DAI_OE           (1 << 3)
#define DA7210_DAI_EN           (1 << 7)

/*PLL_DIV3 bit fields */
#define DA7210_PLL_DIV_L_MASK       (0xF << 0)
#define DA7210_MCLK_RANGE_10_20_MHZ (1 << 4)
#define DA7210_PLL_BYP          (1 << 6)

/* PLL bit fields */
#define DA7210_PLL_FS_MASK      (0xF << 0)
#define DA7210_PLL_FS_8000      (0x1 << 0)
#define DA7210_PLL_FS_11025     (0x2 << 0)
#define DA7210_PLL_FS_12000     (0x3 << 0)
#define DA7210_PLL_FS_16000     (0x5 << 0)
#define DA7210_PLL_FS_22050     (0x6 << 0)
#define DA7210_PLL_FS_24000     (0x7 << 0)
#define DA7210_PLL_FS_32000     (0x9 << 0)
#define DA7210_PLL_FS_44100     (0xA << 0)
#define DA7210_PLL_FS_48000     (0xB << 0)
#define DA7210_PLL_FS_88200     (0xE << 0)
#define DA7210_PLL_FS_96000     (0xF << 0)
#define DA7210_MCLK_DET_EN      (0x1 << 5)
#define DA7210_MCLK_SRM_EN      (0x1 << 6)
#define DA7210_PLL_EN           (0x1 << 7)

/* SOFTMUTE bit fields */
#define DA7210_RAMP_EN          (1 << 6)

/* CONTROL bit fields */
#define DA7210_REG_EN           (1 << 0)
#define DA7210_BIAS_EN          (1 << 2)
#define DA7210_NOISE_SUP_EN     (1 << 3)

/* IN_GAIN bit fields */
#define DA7210_INPGA_L_VOL      (0x0F << 0)
#define DA7210_INPGA_R_VOL      (0xF0 << 0)

/* ZERO_CROSS bit fields */
#define DA7210_AUX1_L_ZC        (1 << 0)
#define DA7210_AUX1_R_ZC        (1 << 1)
#define DA7210_HP_L_ZC          (1 << 6)
#define DA7210_HP_R_ZC          (1 << 7)

/* AUX1_L bit fields */
#define DA7210_AUX1_L_VOL       (0x3F << 0)
#define DA7210_AUX1_L_EN        (1 << 7)

/* AUX1_R bit fields */
#define DA7210_AUX1_R_VOL       (0x3F << 0)
#define DA7210_AUX1_R_EN        (1 << 7)

/* AUX2 bit fields */
#define DA7210_AUX2_EN          (1 << 3)

/* Minimum INPGA and AUX1 volume to enable noise suppression */
#define DA7210_INPGA_MIN_VOL_NS     0x0A  /* 10.5dB */
#define DA7210_AUX1_MIN_VOL_NS      0x35  /* 6dB */

/* OUT1_L bit fields */
#define DA7210_OUT1_L_EN        (1 << 7)

/* OUT1_R bit fields */
#define DA7210_OUT1_R_EN        (1 << 7)

/* OUT2 bit fields */
#define DA7210_OUT2_OUTMIX_R        (1 << 5)
#define DA7210_OUT2_OUTMIX_L        (1 << 6)
#define DA7210_OUT2_EN          (1 << 7)

struct pll_div {
    int fref;
    int fout;
    u8 div1;
    u8 div2;
    u8 div3;
    u8 mode;    /* 0 = slave, 1 = master */
};

/* PLL dividers table */
static const struct pll_div da7210_pll_div[] = {
    /* for MASTER mode, fs = 44.1Khz */
    { 12000000, 2822400, 0xE8, 0x6C, 0x2, 1},   /* MCLK=12Mhz */
    { 13000000, 2822400, 0xDF, 0x28, 0xC, 1},   /* MCLK=13Mhz */
    { 13500000, 2822400, 0xDB, 0x0A, 0xD, 1},   /* MCLK=13.5Mhz */
    { 14400000, 2822400, 0xD4, 0x5A, 0x2, 1},   /* MCLK=14.4Mhz */
    { 19200000, 2822400, 0xBB, 0x43, 0x9, 1},   /* MCLK=19.2Mhz */
    { 19680000, 2822400, 0xB9, 0x6D, 0xA, 1},   /* MCLK=19.68Mhz */
    { 19800000, 2822400, 0xB8, 0xFB, 0xB, 1},   /* MCLK=19.8Mhz */
    /* for MASTER mode, fs = 48Khz */
    { 12000000, 3072000, 0xF3, 0x12, 0x7, 1},   /* MCLK=12Mhz */
    { 13000000, 3072000, 0xE8, 0xFD, 0x5, 1},   /* MCLK=13Mhz */
    { 13500000, 3072000, 0xE4, 0x82, 0x3, 1},   /* MCLK=13.5Mhz */
    { 14400000, 3072000, 0xDD, 0x3A, 0x0, 1},   /* MCLK=14.4Mhz */
    { 19200000, 3072000, 0xC1, 0xEB, 0x8, 1},   /* MCLK=19.2Mhz */
    { 19680000, 3072000, 0xBF, 0xEC, 0x0, 1},   /* MCLK=19.68Mhz */
    { 19800000, 3072000, 0xBF, 0x70, 0x0, 1},   /* MCLK=19.8Mhz */
    /* for SLAVE mode with SRM */
    { 12000000, 2822400, 0xED, 0xBF, 0x5, 0},   /* MCLK=12Mhz */
    { 13000000, 2822400, 0xE4, 0x13, 0x0, 0},   /* MCLK=13Mhz */
    { 13500000, 2822400, 0xDF, 0xC6, 0x8, 0},   /* MCLK=13.5Mhz */
    { 14400000, 2822400, 0xD8, 0xCA, 0x1, 0},   /* MCLK=14.4Mhz */
    { 19200000, 2822400, 0xBE, 0x97, 0x9, 0},   /* MCLK=19.2Mhz */
    { 19680000, 2822400, 0xBC, 0xAC, 0xD, 0},   /* MCLK=19.68Mhz */
    { 19800000, 2822400, 0xBC, 0x35, 0xE, 0},   /* MCLK=19.8Mhz  */
};

enum clk_src {
    DA7210_CLKSRC_MCLK
};

#define DA7210_VERSION "0.0.1"

/*
 * Playback Volume
 *
 * max      : 0x3F (+15.0 dB)
 *         (1.5 dB step)
 * min      : 0x11 (-54.0 dB)
 * mute     : 0x10
 * reserved : 0x00 - 0x0F
 *
 * Reserved area are considered as "mute".
 */
static const unsigned int hp_out_tlv[] = {
    TLV_DB_RANGE_HEAD(2),
    0x0, 0x10, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 1),
    /* -54 dB to +15 dB */
    0x11, 0x3f, TLV_DB_SCALE_ITEM(-5400, 150, 0),
};

static const unsigned int lineout_vol_tlv[] = {
    TLV_DB_RANGE_HEAD(2),
    0x0, 0x10, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 1),
    /* -54dB to 15dB */
    0x11, 0x3f, TLV_DB_SCALE_ITEM(-5400, 150, 0)
};

static const unsigned int mono_vol_tlv[] = {
    TLV_DB_RANGE_HEAD(2),
    0x0, 0x2, TLV_DB_SCALE_ITEM(-1800, 0, 1),
    /* -18dB to 6dB */
    0x3, 0x7, TLV_DB_SCALE_ITEM(-1800, 600, 0)
};

static const unsigned int aux1_vol_tlv[] = {
    TLV_DB_RANGE_HEAD(2),
    0x0, 0x10, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 1),
    /* -48dB to 21dB */
    0x11, 0x3f, TLV_DB_SCALE_ITEM(-4800, 150, 0)
};

static const DECLARE_TLV_DB_SCALE(eq_gain_tlv, -1050, 150, 0);
static const DECLARE_TLV_DB_SCALE(adc_eq_master_gain_tlv, -1800, 600, 1);
static const DECLARE_TLV_DB_SCALE(dac_gain_tlv, -7725, 75, 0);
static const DECLARE_TLV_DB_SCALE(mic_vol_tlv, -600, 600, 0);
static const DECLARE_TLV_DB_SCALE(aux2_vol_tlv, -600, 600, 0);
static const DECLARE_TLV_DB_SCALE(inpga_gain_tlv, -450, 150, 0);

/* ADC and DAC high pass filter f0 value */
static const char * const da7210_hpf_cutoff_txt[] = {
    "Fs/8192*pi", "Fs/4096*pi", "Fs/2048*pi", "Fs/1024*pi"
};

static const struct soc_enum da7210_dac_hpf_cutoff =
    SOC_ENUM_SINGLE(DA7210_DAC_HPF, 0, 4, da7210_hpf_cutoff_txt);

static const struct soc_enum da7210_adc_hpf_cutoff =
    SOC_ENUM_SINGLE(DA7210_ADC_HPF, 0, 4, da7210_hpf_cutoff_txt);

/* ADC and DAC voice (8kHz) high pass cutoff value */
static const char * const da7210_vf_cutoff_txt[] = {
    "2.5Hz", "25Hz", "50Hz", "100Hz", "150Hz", "200Hz", "300Hz", "400Hz"
};

static const struct soc_enum da7210_dac_vf_cutoff =
    SOC_ENUM_SINGLE(DA7210_DAC_HPF, 4, 8, da7210_vf_cutoff_txt);

static const struct soc_enum da7210_adc_vf_cutoff =
    SOC_ENUM_SINGLE(DA7210_ADC_HPF, 4, 8, da7210_vf_cutoff_txt);

static const char *da7210_hp_mode_txt[] = {
    "Class H", "Class G"
};

static const struct soc_enum da7210_hp_mode_sel =
    SOC_ENUM_SINGLE(DA7210_HP_CFG, 0, 2, da7210_hp_mode_txt);

/* ALC can be enabled only if noise suppression is disabled */
static int da7210_put_alc_sw(struct snd_kcontrol *kcontrol,
                 struct snd_ctl_elem_value *ucontrol)
{
    struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);

    if (ucontrol->value.integer.value[0]) {
        /* Check if noise suppression is enabled */
        if (snd_soc_read(codec, DA7210_CONTROL) & DA7210_NOISE_SUP_EN) {
            dev_dbg(codec->dev,
                "Disable noise suppression to enable ALC\n");
            return -EINVAL;
        }
    }
    /* If all conditions are met or we are actually disabling ALC */
    return snd_soc_put_volsw(kcontrol, ucontrol);
}

/* Noise suppression can be enabled only if following conditions are met
 *  ALC disabled
 *  ZC enabled for HP and AUX1 PGA
 *  INPGA_L_VOL and INPGA_R_VOL >= 10.5 dB
 *  AUX1_L_VOL and AUX1_R_VOL >= 6 dB
 */
static int da7210_put_noise_sup_sw(struct snd_kcontrol *kcontrol,
                   struct snd_ctl_elem_value *ucontrol)
{
    struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
    u8 val;

    if (ucontrol->value.integer.value[0]) {
        /* Check if ALC is enabled */
        if (snd_soc_read(codec, DA7210_ADC) & DA7210_ADC_ALC_EN)
            goto err;

        /* Check ZC for HP and AUX1 PGA */
        if ((snd_soc_read(codec, DA7210_ZERO_CROSS) &
            (DA7210_AUX1_L_ZC | DA7210_AUX1_R_ZC | DA7210_HP_L_ZC |
            DA7210_HP_R_ZC)) != (DA7210_AUX1_L_ZC |
            DA7210_AUX1_R_ZC | DA7210_HP_L_ZC | DA7210_HP_R_ZC))
            goto err;

        /* Check INPGA_L_VOL and INPGA_R_VOL */
        val = snd_soc_read(codec, DA7210_IN_GAIN);
        if (((val & DA7210_INPGA_L_VOL) < DA7210_INPGA_MIN_VOL_NS) ||
            (((val & DA7210_INPGA_R_VOL) >> 4) <
            DA7210_INPGA_MIN_VOL_NS))
            goto err;

        /* Check AUX1_L_VOL and AUX1_R_VOL */
        if (((snd_soc_read(codec, DA7210_AUX1_L) & DA7210_AUX1_L_VOL) <
            DA7210_AUX1_MIN_VOL_NS) ||
            ((snd_soc_read(codec, DA7210_AUX1_R) & DA7210_AUX1_R_VOL) <
            DA7210_AUX1_MIN_VOL_NS))
            goto err;
    }
    /* If all conditions are met or we are actually disabling Noise sup */
    return snd_soc_put_volsw(kcontrol, ucontrol);

err:
    return -EINVAL;
}

static const struct snd_kcontrol_new da7210_snd_controls[] = {

    SOC_DOUBLE_R_TLV("HeadPhone Playback Volume",
             DA7210_HP_L_VOL, DA7210_HP_R_VOL,
             0, 0x3F, 0, hp_out_tlv),
    SOC_DOUBLE_R_TLV("Digital Playback Volume",
             DA7210_DAC_L, DA7210_DAC_R,
             0, 0x77, 1, dac_gain_tlv),
    SOC_DOUBLE_R_TLV("Lineout Playback Volume",
             DA7210_OUT1_L, DA7210_OUT1_R,
             0, 0x3f, 0, lineout_vol_tlv),
    SOC_SINGLE_TLV("Mono Playback Volume", DA7210_OUT2, 0, 0x7, 0,
               mono_vol_tlv),

    SOC_DOUBLE_R_TLV("Mic Capture Volume",
             DA7210_MIC_L, DA7210_MIC_R,
             0, 0x5, 0, mic_vol_tlv),
    SOC_DOUBLE_R_TLV("Aux1 Capture Volume",
             DA7210_AUX1_L, DA7210_AUX1_R,
             0, 0x3f, 0, aux1_vol_tlv),
    SOC_SINGLE_TLV("Aux2 Capture Volume", DA7210_AUX2, 0, 0x3, 0,
               aux2_vol_tlv),
    SOC_DOUBLE_TLV("In PGA Capture Volume", DA7210_IN_GAIN, 0, 4, 0xF, 0,
               inpga_gain_tlv),

    /* DAC Equalizer  controls */
    SOC_SINGLE("DAC EQ Switch", DA7210_DAC_EQ5, 7, 1, 0),
    SOC_SINGLE_TLV("DAC EQ1 Volume", DA7210_DAC_EQ1_2, 0, 0xf, 1,
               eq_gain_tlv),
    SOC_SINGLE_TLV("DAC EQ2 Volume", DA7210_DAC_EQ1_2, 4, 0xf, 1,
               eq_gain_tlv),
    SOC_SINGLE_TLV("DAC EQ3 Volume", DA7210_DAC_EQ3_4, 0, 0xf, 1,
               eq_gain_tlv),
    SOC_SINGLE_TLV("DAC EQ4 Volume", DA7210_DAC_EQ3_4, 4, 0xf, 1,
               eq_gain_tlv),
    SOC_SINGLE_TLV("DAC EQ5 Volume", DA7210_DAC_EQ5, 0, 0xf, 1,
               eq_gain_tlv),

    /* ADC Equalizer  controls */
    SOC_SINGLE("ADC EQ Switch", DA7210_ADC_EQ5, 7, 1, 0),
    SOC_SINGLE_TLV("ADC EQ Master Volume", DA7210_ADC_EQ5, 4, 0x3,
               1, adc_eq_master_gain_tlv),
    SOC_SINGLE_TLV("ADC EQ1 Volume", DA7210_ADC_EQ1_2, 0, 0xf, 1,
               eq_gain_tlv),
    SOC_SINGLE_TLV("ADC EQ2 Volume", DA7210_ADC_EQ1_2, 4, 0xf, 1,
               eq_gain_tlv),
    SOC_SINGLE_TLV("ADC EQ3 Volume", DA7210_ADC_EQ3_4, 0, 0xf, 1,
               eq_gain_tlv),
    SOC_SINGLE_TLV("ADC EQ4 Volume", DA7210_ADC_EQ3_4, 4, 0xf, 1,
               eq_gain_tlv),
    SOC_SINGLE_TLV("ADC EQ5 Volume", DA7210_ADC_EQ5, 0, 0xf, 1,
               eq_gain_tlv),

    SOC_SINGLE("DAC HPF Switch", DA7210_DAC_HPF, 3, 1, 0),
    SOC_ENUM("DAC HPF Cutoff", da7210_dac_hpf_cutoff),
    SOC_SINGLE("DAC Voice Mode Switch", DA7210_DAC_HPF, 7, 1, 0),
    SOC_ENUM("DAC Voice Cutoff", da7210_dac_vf_cutoff),

    SOC_SINGLE("ADC HPF Switch", DA7210_ADC_HPF, 3, 1, 0),
    SOC_ENUM("ADC HPF Cutoff", da7210_adc_hpf_cutoff),
    SOC_SINGLE("ADC Voice Mode Switch", DA7210_ADC_HPF, 7, 1, 0),
    SOC_ENUM("ADC Voice Cutoff", da7210_adc_vf_cutoff),

    /* Mute controls */
    SOC_DOUBLE_R("Mic Capture Switch", DA7210_MIC_L, DA7210_MIC_R, 3, 1, 0),
    SOC_SINGLE("Aux2 Capture Switch", DA7210_AUX2, 2, 1, 0),
    SOC_DOUBLE("ADC Capture Switch", DA7210_ADC, 2, 6, 1, 0),
    SOC_SINGLE("Digital Soft Mute Switch", DA7210_SOFTMUTE, 7, 1, 0),
    SOC_SINGLE("Digital Soft Mute Rate", DA7210_SOFTMUTE, 0, 0x7, 0),

    /* Zero cross controls */
    SOC_DOUBLE("Aux1 ZC Switch", DA7210_ZERO_CROSS, 0, 1, 1, 0),
    SOC_DOUBLE("In PGA ZC Switch", DA7210_ZERO_CROSS, 2, 3, 1, 0),
    SOC_DOUBLE("Lineout ZC Switch", DA7210_ZERO_CROSS, 4, 5, 1, 0),
    SOC_DOUBLE("Headphone ZC Switch", DA7210_ZERO_CROSS, 6, 7, 1, 0),

    SOC_ENUM("Headphone Class", da7210_hp_mode_sel),

    /* ALC controls */
    SOC_SINGLE_EXT("ALC Enable Switch", DA7210_ADC, 0, 1, 0,
               snd_soc_get_volsw, da7210_put_alc_sw),
    SOC_SINGLE("ALC Capture Max Volume", DA7210_ALC_MAX, 0, 0x3F, 0),
    SOC_SINGLE("ALC Capture Min Volume", DA7210_ALC_MIN, 0, 0x3F, 0),
    SOC_SINGLE("ALC Capture Noise Volume", DA7210_ALC_NOIS, 0, 0x3F, 0),
    SOC_SINGLE("ALC Capture Attack Rate", DA7210_ALC_ATT, 0, 0xFF, 0),
    SOC_SINGLE("ALC Capture Release Rate", DA7210_ALC_REL, 0, 0xFF, 0),
    SOC_SINGLE("ALC Capture Release Delay", DA7210_ALC_DEL, 0, 0xFF, 0),

    SOC_SINGLE_EXT("Noise Suppression Enable Switch", DA7210_CONTROL, 3, 1,
               0, snd_soc_get_volsw, da7210_put_noise_sup_sw),
};

/*
 * DAPM Controls
 *
 * Current DAPM implementation covers almost all codec components e.g. IOs,
 * mixers, PGAs,ADC and DAC.
 */
/* In Mixer Left */
static const struct snd_kcontrol_new da7210_dapm_inmixl_controls[] = {
    SOC_DAPM_SINGLE("Mic Left Switch", DA7210_INMIX_L, 0, 1, 0),
    SOC_DAPM_SINGLE("Mic Right Switch", DA7210_INMIX_L, 1, 1, 0),
    SOC_DAPM_SINGLE("Aux1 Left Switch", DA7210_INMIX_L, 2, 1, 0),
    SOC_DAPM_SINGLE("Aux2 Switch", DA7210_INMIX_L, 3, 1, 0),
    SOC_DAPM_SINGLE("Outmix Left Switch", DA7210_INMIX_L, 4, 1, 0),
};

/* In Mixer Right */
static const struct snd_kcontrol_new da7210_dapm_inmixr_controls[] = {
    SOC_DAPM_SINGLE("Mic Right Switch", DA7210_INMIX_R, 0, 1, 0),
    SOC_DAPM_SINGLE("Mic Left Switch", DA7210_INMIX_R, 1, 1, 0),
    SOC_DAPM_SINGLE("Aux1 Right Switch", DA7210_INMIX_R, 2, 1, 0),
    SOC_DAPM_SINGLE("Aux2 Switch", DA7210_INMIX_R, 3, 1, 0),
    SOC_DAPM_SINGLE("Outmix Right Switch", DA7210_INMIX_R, 4, 1, 0),
};

/* Out Mixer Left */
static const struct snd_kcontrol_new da7210_dapm_outmixl_controls[] = {
    SOC_DAPM_SINGLE("Aux1 Left Switch", DA7210_OUTMIX_L, 0, 1, 0),
    SOC_DAPM_SINGLE("Aux2 Switch", DA7210_OUTMIX_L, 1, 1, 0),
    SOC_DAPM_SINGLE("INPGA Left Switch", DA7210_OUTMIX_L, 2, 1, 0),
    SOC_DAPM_SINGLE("INPGA Right Switch", DA7210_OUTMIX_L, 3, 1, 0),
    SOC_DAPM_SINGLE("DAC Left Switch", DA7210_OUTMIX_L, 4, 1, 0),
};

/* Out Mixer Right */
static const struct snd_kcontrol_new da7210_dapm_outmixr_controls[] = {
    SOC_DAPM_SINGLE("Aux1 Right Switch", DA7210_OUTMIX_R, 0, 1, 0),
    SOC_DAPM_SINGLE("Aux2 Switch", DA7210_OUTMIX_R, 1, 1, 0),
    SOC_DAPM_SINGLE("INPGA Left Switch", DA7210_OUTMIX_R, 2, 1, 0),
    SOC_DAPM_SINGLE("INPGA Right Switch", DA7210_OUTMIX_R, 3, 1, 0),
    SOC_DAPM_SINGLE("DAC Right Switch", DA7210_OUTMIX_R, 4, 1, 0),
};

/* Mono Mixer */
static const struct snd_kcontrol_new da7210_dapm_monomix_controls[] = {
    SOC_DAPM_SINGLE("INPGA Right Switch", DA7210_OUT2, 3, 1, 0),
    SOC_DAPM_SINGLE("INPGA Left Switch", DA7210_OUT2, 4, 1, 0),
    SOC_DAPM_SINGLE("Outmix Right Switch", DA7210_OUT2, 5, 1, 0),
    SOC_DAPM_SINGLE("Outmix Left Switch", DA7210_OUT2, 6, 1, 0),
};

/* DAPM widgets */
static const struct snd_soc_dapm_widget da7210_dapm_widgets[] = {
    /* Input Side */
    /* Input Lines */
    SND_SOC_DAPM_INPUT("MICL"),
    SND_SOC_DAPM_INPUT("MICR"),
    SND_SOC_DAPM_INPUT("AUX1L"),
    SND_SOC_DAPM_INPUT("AUX1R"),
    SND_SOC_DAPM_INPUT("AUX2"),

    /* Input PGAs */
    SND_SOC_DAPM_PGA("Mic Left", DA7210_STARTUP3, 0, 1, NULL, 0),
    SND_SOC_DAPM_PGA("Mic Right", DA7210_STARTUP3, 1, 1, NULL, 0),
    SND_SOC_DAPM_PGA("Aux1 Left", DA7210_STARTUP3, 2, 1, NULL, 0),
    SND_SOC_DAPM_PGA("Aux1 Right", DA7210_STARTUP3, 3, 1, NULL, 0),
    SND_SOC_DAPM_PGA("Aux2 Mono", DA7210_STARTUP3, 4, 1, NULL, 0),

    SND_SOC_DAPM_PGA("INPGA Left", DA7210_INMIX_L, 7, 0, NULL, 0),
    SND_SOC_DAPM_PGA("INPGA Right", DA7210_INMIX_R, 7, 0, NULL, 0),

    /* MICBIAS */
    SND_SOC_DAPM_SUPPLY("Mic Bias", DA7210_MIC_L, 6, 0, NULL, 0),

    /* Input Mixers */
    SND_SOC_DAPM_MIXER("In Mixer Left", SND_SOC_NOPM, 0, 0,
        &da7210_dapm_inmixl_controls[0],
        ARRAY_SIZE(da7210_dapm_inmixl_controls)),

    SND_SOC_DAPM_MIXER("In Mixer Right", SND_SOC_NOPM, 0, 0,
        &da7210_dapm_inmixr_controls[0],
        ARRAY_SIZE(da7210_dapm_inmixr_controls)),

    /* ADCs */
    SND_SOC_DAPM_ADC("ADC Left", "Capture", DA7210_STARTUP3, 5, 1),
    SND_SOC_DAPM_ADC("ADC Right", "Capture", DA7210_STARTUP3, 6, 1),

    /* Output Side */
    /* DACs */
    SND_SOC_DAPM_DAC("DAC Left", "Playback", DA7210_STARTUP2, 5, 1),
    SND_SOC_DAPM_DAC("DAC Right", "Playback", DA7210_STARTUP2, 6, 1),

    /* Output Mixers */
    SND_SOC_DAPM_MIXER("Out Mixer Left", SND_SOC_NOPM, 0, 0,
        &da7210_dapm_outmixl_controls[0],
        ARRAY_SIZE(da7210_dapm_outmixl_controls)),

    SND_SOC_DAPM_MIXER("Out Mixer Right", SND_SOC_NOPM, 0, 0,
        &da7210_dapm_outmixr_controls[0],
        ARRAY_SIZE(da7210_dapm_outmixr_controls)),

    SND_SOC_DAPM_MIXER("Mono Mixer", SND_SOC_NOPM, 0, 0,
        &da7210_dapm_monomix_controls[0],
        ARRAY_SIZE(da7210_dapm_monomix_controls)),

    /* Output PGAs */
    SND_SOC_DAPM_PGA("OUTPGA Left Enable", DA7210_OUTMIX_L, 7, 0, NULL, 0),
    SND_SOC_DAPM_PGA("OUTPGA Right Enable", DA7210_OUTMIX_R, 7, 0, NULL, 0),

    SND_SOC_DAPM_PGA("Out1 Left", DA7210_STARTUP2, 0, 1, NULL, 0),
    SND_SOC_DAPM_PGA("Out1 Right", DA7210_STARTUP2, 1, 1, NULL, 0),
    SND_SOC_DAPM_PGA("Out2 Mono", DA7210_STARTUP2, 2, 1, NULL, 0),
    SND_SOC_DAPM_PGA("Headphone Left", DA7210_STARTUP2, 3, 1, NULL, 0),
    SND_SOC_DAPM_PGA("Headphone Right", DA7210_STARTUP2, 4, 1, NULL, 0),

    /* Output Lines */
    SND_SOC_DAPM_OUTPUT("OUT1L"),
    SND_SOC_DAPM_OUTPUT("OUT1R"),
    SND_SOC_DAPM_OUTPUT("HPL"),
    SND_SOC_DAPM_OUTPUT("HPR"),
    SND_SOC_DAPM_OUTPUT("OUT2"),
};

/* DAPM audio route definition */
static const struct snd_soc_dapm_route da7210_audio_map[] = {
    /* Dest       Connecting Widget    source */
    /* Input path */
    {"Mic Left", NULL, "MICL"},
    {"Mic Right", NULL, "MICR"},
    {"Aux1 Left", NULL, "AUX1L"},
    {"Aux1 Right", NULL, "AUX1R"},
    {"Aux2 Mono", NULL, "AUX2"},

    {"In Mixer Left", "Mic Left Switch", "Mic Left"},
    {"In Mixer Left", "Mic Right Switch", "Mic Right"},
    {"In Mixer Left", "Aux1 Left Switch", "Aux1 Left"},
    {"In Mixer Left", "Aux2 Switch", "Aux2 Mono"},
    {"In Mixer Left", "Outmix Left Switch", "Out Mixer Left"},

    {"In Mixer Right", "Mic Right Switch", "Mic Right"},
    {"In Mixer Right", "Mic Left Switch", "Mic Left"},
    {"In Mixer Right", "Aux1 Right Switch", "Aux1 Right"},
    {"In Mixer Right", "Aux2 Switch", "Aux2 Mono"},
    {"In Mixer Right", "Outmix Right Switch", "Out Mixer Right"},

    {"INPGA Left", NULL, "In Mixer Left"},
    {"ADC Left", NULL, "INPGA Left"},

    {"INPGA Right", NULL, "In Mixer Right"},
    {"ADC Right", NULL, "INPGA Right"},

    /* Output path */
    {"Out Mixer Left", "Aux1 Left Switch", "Aux1 Left"},
    {"Out Mixer Left", "Aux2 Switch", "Aux2 Mono"},
    {"Out Mixer Left", "INPGA Left Switch", "INPGA Left"},
    {"Out Mixer Left", "INPGA Right Switch", "INPGA Right"},
    {"Out Mixer Left", "DAC Left Switch", "DAC Left"},

    {"Out Mixer Right", "Aux1 Right Switch", "Aux1 Right"},
    {"Out Mixer Right", "Aux2 Switch", "Aux2 Mono"},
    {"Out Mixer Right", "INPGA Right Switch", "INPGA Right"},
    {"Out Mixer Right", "INPGA Left Switch", "INPGA Left"},
    {"Out Mixer Right", "DAC Right Switch", "DAC Right"},

    {"Mono Mixer", "INPGA Right Switch", "INPGA Right"},
    {"Mono Mixer", "INPGA Left Switch", "INPGA Left"},
    {"Mono Mixer", "Outmix Right Switch", "Out Mixer Right"},
    {"Mono Mixer", "Outmix Left Switch", "Out Mixer Left"},

    {"OUTPGA Left Enable", NULL, "Out Mixer Left"},
    {"OUTPGA Right Enable", NULL, "Out Mixer Right"},

    {"Out1 Left", NULL, "OUTPGA Left Enable"},
    {"OUT1L", NULL, "Out1 Left"},

    {"Out1 Right", NULL, "OUTPGA Right Enable"},
    {"OUT1R", NULL, "Out1 Right"},

    {"Headphone Left", NULL, "OUTPGA Left Enable"},
    {"HPL", NULL, "Headphone Left"},

    {"Headphone Right", NULL, "OUTPGA Right Enable"},
    {"HPR", NULL, "Headphone Right"},

    {"Out2 Mono", NULL, "Mono Mixer"},
    {"OUT2", NULL, "Out2 Mono"},
};

/* Codec private data */
struct da7210_priv {
    struct regmap *regmap;
    unsigned int mclk_rate;
    int master;
};

static struct reg_default da7210_reg_defaults[] = {
    { 0x00, 0x00 },
    { 0x01, 0x11 },
    { 0x03, 0x00 },
    { 0x04, 0x00 },
    { 0x05, 0x00 },
    { 0x06, 0x00 },
    { 0x07, 0x00 },
    { 0x08, 0x00 },
    { 0x09, 0x00 },
    { 0x0a, 0x00 },
    { 0x0b, 0x00 },
    { 0x0c, 0x00 },
    { 0x0d, 0x00 },
    { 0x0e, 0x00 },
    { 0x0f, 0x08 },
    { 0x10, 0x00 },
    { 0x11, 0x00 },
    { 0x12, 0x00 },
    { 0x13, 0x00 },
    { 0x14, 0x08 },
    { 0x15, 0x10 },
    { 0x16, 0x10 },
    { 0x17, 0x54 },
    { 0x18, 0x40 },
    { 0x19, 0x00 },
    { 0x1a, 0x00 },
    { 0x1b, 0x00 },
    { 0x1c, 0x00 },
    { 0x1d, 0x00 },
    { 0x1e, 0x00 },
    { 0x1f, 0x00 },
    { 0x20, 0x00 },
    { 0x21, 0x00 },
    { 0x22, 0x00 },
    { 0x23, 0x02 },
    { 0x24, 0x00 },
    { 0x25, 0x76 },
    { 0x26, 0x00 },
    { 0x27, 0x00 },
    { 0x28, 0x04 },
    { 0x29, 0x00 },
    { 0x2a, 0x00 },
    { 0x2b, 0x30 },
    { 0x2c, 0x2A },
    { 0x83, 0x00 },
    { 0x84, 0x00 },
    { 0x85, 0x00 },
    { 0x86, 0x00 },
    { 0x87, 0x00 },
    { 0x88, 0x00 },
};

static bool da7210_readable_register(struct device *dev, unsigned int reg)
{
    switch (reg) {
    case DA7210_A_HID_UNLOCK:
    case DA7210_A_TEST_UNLOCK:
    case DA7210_A_PLL1:
    case DA7210_A_CP_MODE:
        return false;
    default:
        return true;
    }
}

static bool da7210_volatile_register(struct device *dev,
                    unsigned int reg)
{
    switch (reg) {
    case DA7210_STATUS:
        return true;
    default:
        return false;
    }
}

/*
 * Set PCM DAI word length.
 */
static int da7210_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;
    struct da7210_priv *da7210 = snd_soc_codec_get_drvdata(codec);
    u32 dai_cfg1;
    u32 fs, sysclk;

    /* set DAI source to Left and Right ADC */
    snd_soc_write(codec, DA7210_DAI_SRC_SEL,
             DA7210_DAI_OUT_R_SRC | DA7210_DAI_OUT_L_SRC);

    /* Enable DAI */
    snd_soc_write(codec, DA7210_DAI_CFG3, DA7210_DAI_OE | DA7210_DAI_EN);

    dai_cfg1 = 0xFC & snd_soc_read(codec, DA7210_DAI_CFG1);

    switch (params_format(params)) {
    case SNDRV_PCM_FORMAT_S16_LE:
        dai_cfg1 |= DA7210_DAI_WORD_S16_LE;
        break;
    case SNDRV_PCM_FORMAT_S20_3LE:
        dai_cfg1 |= DA7210_DAI_WORD_S20_3LE;
        break;
    case SNDRV_PCM_FORMAT_S24_LE:
        dai_cfg1 |= DA7210_DAI_WORD_S24_LE;
        break;
    case SNDRV_PCM_FORMAT_S32_LE:
        dai_cfg1 |= DA7210_DAI_WORD_S32_LE;
        break;
    default:
        return -EINVAL;
    }

    snd_soc_write(codec, DA7210_DAI_CFG1, dai_cfg1);

    switch (params_rate(params)) {
    case 8000:
        fs      = DA7210_PLL_FS_8000;
        sysclk      = 3072000;
        break;
    case 11025:
        fs      = DA7210_PLL_FS_11025;
        sysclk      = 2822400;
        break;
    case 12000:
        fs      = DA7210_PLL_FS_12000;
        sysclk      = 3072000;
        break;
    case 16000:
        fs      = DA7210_PLL_FS_16000;
        sysclk      = 3072000;
        break;
    case 22050:
        fs      = DA7210_PLL_FS_22050;
        sysclk      = 2822400;
        break;
    case 32000:
        fs      = DA7210_PLL_FS_32000;
        sysclk      = 3072000;
        break;
    case 44100:
        fs      = DA7210_PLL_FS_44100;
        sysclk      = 2822400;
        break;
    case 48000:
        fs      = DA7210_PLL_FS_48000;
        sysclk      = 3072000;
        break;
    case 88200:
        fs      = DA7210_PLL_FS_88200;
        sysclk      = 2822400;
        break;
    case 96000:
        fs      = DA7210_PLL_FS_96000;
        sysclk      = 3072000;
        break;
    default:
        return -EINVAL;
    }

    /* Disable active mode */
    snd_soc_update_bits(codec, DA7210_STARTUP1, DA7210_SC_MST_EN, 0);

    snd_soc_update_bits(codec, DA7210_PLL, DA7210_PLL_FS_MASK, fs);

    if (da7210->mclk_rate && (da7210->mclk_rate != sysclk)) {
        /* PLL mode, disable PLL bypass */
        snd_soc_update_bits(codec, DA7210_PLL_DIV3, DA7210_PLL_BYP, 0);

        if (!da7210->master) {
            /* PLL slave mode, also enable SRM */
            snd_soc_update_bits(codec, DA7210_PLL,
                           (DA7210_MCLK_SRM_EN |
                            DA7210_MCLK_DET_EN),
                           (DA7210_MCLK_SRM_EN |
                            DA7210_MCLK_DET_EN));
        }
    } else {
        /* PLL bypass mode, enable PLL bypass and Auto Detection */
        snd_soc_update_bits(codec, DA7210_PLL, DA7210_MCLK_DET_EN,
                               DA7210_MCLK_DET_EN);
        snd_soc_update_bits(codec, DA7210_PLL_DIV3, DA7210_PLL_BYP,
                                DA7210_PLL_BYP);
    }
    /* Enable active mode */
    snd_soc_update_bits(codec, DA7210_STARTUP1,
                DA7210_SC_MST_EN, DA7210_SC_MST_EN);

    return 0;
}

/*
 * Set DAI mode and Format
 */
static int da7210_set_dai_fmt(struct snd_soc_dai *codec_dai, u32 fmt)
{
    struct snd_soc_codec *codec = codec_dai->codec;
    struct da7210_priv *da7210 = snd_soc_codec_get_drvdata(codec);
    u32 dai_cfg1;
    u32 dai_cfg3;

    dai_cfg1 = 0x7f & snd_soc_read(codec, DA7210_DAI_CFG1);
    dai_cfg3 = 0xfc & snd_soc_read(codec, DA7210_DAI_CFG3);

    if ((snd_soc_read(codec, DA7210_PLL) & DA7210_PLL_EN) &&
        (!(snd_soc_read(codec, DA7210_PLL_DIV3) & DA7210_PLL_BYP)))
        return -EINVAL;

    switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
    case SND_SOC_DAIFMT_CBM_CFM:
        da7210->master = 1;
        dai_cfg1 |= DA7210_DAI_MODE_MASTER;
        break;
    case SND_SOC_DAIFMT_CBS_CFS:
        da7210->master = 0;
        dai_cfg1 |= DA7210_DAI_MODE_SLAVE;
        break;
    default:
        return -EINVAL;
    }

    /* FIXME
     *
     * It support I2S only now
     */
    switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
    case SND_SOC_DAIFMT_I2S:
        dai_cfg3 |= DA7210_DAI_FORMAT_I2SMODE;
        break;
    case SND_SOC_DAIFMT_LEFT_J:
        dai_cfg3 |= DA7210_DAI_FORMAT_LEFT_J;
        break;
    case SND_SOC_DAIFMT_RIGHT_J:
        dai_cfg3 |= DA7210_DAI_FORMAT_RIGHT_J;
        break;
    default:
        return -EINVAL;
    }

    /* FIXME
     *
     * It support 64bit data transmission only now
     */
    dai_cfg1 |= DA7210_DAI_FLEN_64BIT;

    snd_soc_write(codec, DA7210_DAI_CFG1, dai_cfg1);
    snd_soc_write(codec, DA7210_DAI_CFG3, dai_cfg3);

    return 0;
}

static int da7210_mute(struct snd_soc_dai *dai, int mute)
{
    struct snd_soc_codec *codec = dai->codec;
    u8 mute_reg = snd_soc_read(codec, DA7210_DAC_HPF) & 0xFB;

    if (mute)
        snd_soc_write(codec, DA7210_DAC_HPF, mute_reg | 0x4);
    else
        snd_soc_write(codec, DA7210_DAC_HPF, mute_reg);
    return 0;
}

#define DA7210_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
            SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)

static int da7210_set_dai_sysclk(struct snd_soc_dai *codec_dai,
                 int clk_id, unsigned int freq, int dir)
{
    struct snd_soc_codec *codec = codec_dai->codec;
    struct da7210_priv *da7210 = snd_soc_codec_get_drvdata(codec);

    switch (clk_id) {
    case DA7210_CLKSRC_MCLK:
        switch (freq) {
        case 12000000:
        case 13000000:
        case 13500000:
        case 14400000:
        case 19200000:
        case 19680000:
        case 19800000:
            da7210->mclk_rate = freq;
            return 0;
        default:
            dev_err(codec_dai->dev, "Unsupported MCLK value %d\n",
                freq);
            return -EINVAL;
        }
        break;
    default:
        dev_err(codec_dai->dev, "Unknown clock source %d\n", clk_id);
        return -EINVAL;
    }
}

static int da7210_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
                  int source, unsigned int fref, unsigned int fout)
{
    struct snd_soc_codec *codec = codec_dai->codec;
    struct da7210_priv *da7210 = snd_soc_codec_get_drvdata(codec);

    u8 pll_div1, pll_div2, pll_div3, cnt;

    /* In slave mode, there is only one set of divisors */
    if (!da7210->master)
        fout = 2822400;

    /* Search pll div array for correct divisors */
    for (cnt = 0; cnt < ARRAY_SIZE(da7210_pll_div); cnt++) {
        /* check fref, mode  and fout */
        if ((fref == da7210_pll_div[cnt].fref) &&
            (da7210->master ==  da7210_pll_div[cnt].mode) &&
            (fout == da7210_pll_div[cnt].fout)) {
            /* all match, pick up divisors */
            pll_div1 = da7210_pll_div[cnt].div1;
            pll_div2 = da7210_pll_div[cnt].div2;
            pll_div3 = da7210_pll_div[cnt].div3;
            break;
        }
    }
    if (cnt >= ARRAY_SIZE(da7210_pll_div))
        goto err;

    /* Disable active mode */
    snd_soc_update_bits(codec, DA7210_STARTUP1, DA7210_SC_MST_EN, 0);
    /* Write PLL dividers */
    snd_soc_write(codec, DA7210_PLL_DIV1, pll_div1);
    snd_soc_write(codec, DA7210_PLL_DIV2, pll_div2);
    snd_soc_update_bits(codec, DA7210_PLL_DIV3,
                   DA7210_PLL_DIV_L_MASK, pll_div3);

    /* Enable PLL */
    snd_soc_update_bits(codec, DA7210_PLL, DA7210_PLL_EN, DA7210_PLL_EN);

    /* Enable active mode */
    snd_soc_update_bits(codec, DA7210_STARTUP1, DA7210_SC_MST_EN,
                            DA7210_SC_MST_EN);
    return 0;
err:
    dev_err(codec_dai->dev, "Unsupported PLL input frequency %d\n", fref);
    return -EINVAL;
}

/* DAI operations */
static const struct snd_soc_dai_ops da7210_dai_ops = {
    .hw_params  = da7210_hw_params,
    .set_fmt    = da7210_set_dai_fmt,
    .set_sysclk = da7210_set_dai_sysclk,
    .set_pll    = da7210_set_dai_pll,
    .digital_mute   = da7210_mute,
};

static struct snd_soc_dai_driver da7210_dai = {
    .name = "da7210-hifi",
    /* playback capabilities */
    .playback = {
        .stream_name = "Playback",
        .channels_min = 1,
        .channels_max = 2,
        .rates = SNDRV_PCM_RATE_8000_96000,
        .formats = DA7210_FORMATS,
    },
    /* capture capabilities */
    .capture = {
        .stream_name = "Capture",
        .channels_min = 1,
        .channels_max = 2,
        .rates = SNDRV_PCM_RATE_8000_96000,
        .formats = DA7210_FORMATS,
    },
    .ops = &da7210_dai_ops,
    .symmetric_rates = 1,
};

static int da7210_probe(struct snd_soc_codec *codec)
{
    struct da7210_priv *da7210 = snd_soc_codec_get_drvdata(codec);
    int ret;

    dev_info(codec->dev, "DA7210 Audio Codec %s\n", DA7210_VERSION);

    codec->control_data = da7210->regmap;
    ret = snd_soc_codec_set_cache_io(codec, 8, 8, SND_SOC_REGMAP);
    if (ret < 0) {
        dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
        return ret;
    }

    da7210->mclk_rate       = 0;    /* This will be set from set_sysclk() */
    da7210->master          = 0;    /* This will be set from set_fmt() */

    /* Enable internal regulator & bias current */
    snd_soc_write(codec, DA7210_CONTROL, DA7210_REG_EN | DA7210_BIAS_EN);

    /*
     * ADC settings
     */

    /* Enable Left & Right MIC PGA and Mic Bias */
    snd_soc_write(codec, DA7210_MIC_L, DA7210_MIC_L_EN | DA7210_MICBIAS_EN);
    snd_soc_write(codec, DA7210_MIC_R, DA7210_MIC_R_EN);

    /* Enable Left and Right input PGA */
    snd_soc_write(codec, DA7210_INMIX_L, DA7210_IN_L_EN);
    snd_soc_write(codec, DA7210_INMIX_R, DA7210_IN_R_EN);

    /* Enable Left and Right ADC */
    snd_soc_write(codec, DA7210_ADC, DA7210_ADC_L_EN | DA7210_ADC_R_EN);

    /*
     * DAC settings
     */

    /* Enable Left and Right DAC */
    snd_soc_write(codec, DA7210_DAC_SEL,
             DA7210_DAC_L_SRC_DAI_L | DA7210_DAC_L_EN |
             DA7210_DAC_R_SRC_DAI_R | DA7210_DAC_R_EN);

    /* Enable Left and Right out PGA */
    snd_soc_write(codec, DA7210_OUTMIX_L, DA7210_OUT_L_EN);
    snd_soc_write(codec, DA7210_OUTMIX_R, DA7210_OUT_R_EN);

    /* Enable Left and Right HeadPhone PGA */
    snd_soc_write(codec, DA7210_HP_CFG,
             DA7210_HP_2CAP_MODE | DA7210_HP_SENSE_EN |
             DA7210_HP_L_EN | DA7210_HP_MODE | DA7210_HP_R_EN);

    /* Enable ramp mode for DAC gain update */
    snd_soc_write(codec, DA7210_SOFTMUTE, DA7210_RAMP_EN);

    /*
     * For DA7210 codec, there are two ways to enable/disable analog IOs
     * and ADC/DAC,
     * (1) Using "Enable Bit" of register associated with that IO
     * (or ADC/DAC)
     *  e.g. Mic Left can be enabled using bit 7 of MIC_L(0x7) reg
     *
     * (2) Using "Standby Bit" of STARTUP2 or STARTUP3 register
     *  e.g. Mic left can be put to STANDBY using bit 0 of STARTUP3(0x5)
     *
     * Out of these two methods, the one using STANDBY bits is preferred
     * way to enable/disable individual blocks. This is because STANDBY
     * registers are part of system controller which allows system power
     * up/down in a controlled, pop-free manner. Also, as per application
     * note of DA7210, STANDBY register bits are only effective if a
     * particular IO (or ADC/DAC) is already enabled using enable/disable
     * register bits. Keeping these things in mind, current DAPM
     * implementation manipulates only STANDBY bits.
     *
     * Overall implementation can be outlined as below,
     *
     * - "Enable bit" of an IO or ADC/DAC is used to enable it in probe()
     * - "STANDBY bit" is controlled by DAPM
     */

    /* Enable Line out amplifiers */
    snd_soc_write(codec, DA7210_OUT1_L, DA7210_OUT1_L_EN);
    snd_soc_write(codec, DA7210_OUT1_R, DA7210_OUT1_R_EN);
    snd_soc_write(codec, DA7210_OUT2, DA7210_OUT2_EN |
             DA7210_OUT2_OUTMIX_L | DA7210_OUT2_OUTMIX_R);

    /* Enable Aux1 */
    snd_soc_write(codec, DA7210_AUX1_L, DA7210_AUX1_L_EN);
    snd_soc_write(codec, DA7210_AUX1_R, DA7210_AUX1_R_EN);
    /* Enable Aux2 */
    snd_soc_write(codec, DA7210_AUX2, DA7210_AUX2_EN);

    /* Set PLL Master clock range 10-20 MHz, enable PLL bypass */
    snd_soc_write(codec, DA7210_PLL_DIV3, DA7210_MCLK_RANGE_10_20_MHZ |
                          DA7210_PLL_BYP);

    /* Diable PLL and bypass it */
    snd_soc_write(codec, DA7210_PLL, DA7210_PLL_FS_48000);

    /* Activate all enabled subsystem */
    snd_soc_write(codec, DA7210_STARTUP1, DA7210_SC_MST_EN);

    dev_info(codec->dev, "DA7210 Audio Codec %s\n", DA7210_VERSION);

    return 0;
}

static struct snd_soc_codec_driver soc_codec_dev_da7210 = {
    .probe          = da7210_probe,

    .controls       = da7210_snd_controls,
    .num_controls       = ARRAY_SIZE(da7210_snd_controls),

    .dapm_widgets       = da7210_dapm_widgets,
    .num_dapm_widgets   = ARRAY_SIZE(da7210_dapm_widgets),
    .dapm_routes        = da7210_audio_map,
    .num_dapm_routes    = ARRAY_SIZE(da7210_audio_map),
};

#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)

static struct reg_default da7210_regmap_i2c_patch[] = {

    /* System controller master disable */
    { DA7210_STARTUP1, 0x00 },
    /* Set PLL Master clock range 10-20 MHz */
    { DA7210_PLL_DIV3, DA7210_MCLK_RANGE_10_20_MHZ },

    /* to unlock */
    { DA7210_A_HID_UNLOCK, 0x8B},
    { DA7210_A_TEST_UNLOCK, 0xB4},
    { DA7210_A_PLL1, 0x01},
    { DA7210_A_CP_MODE, 0x7C},
    /* to re-lock */
    { DA7210_A_HID_UNLOCK, 0x00},
    { DA7210_A_TEST_UNLOCK, 0x00},
};

static const struct regmap_config da7210_regmap_config_i2c = {
    .reg_bits = 8,
    .val_bits = 8,

    .reg_defaults = da7210_reg_defaults,
    .num_reg_defaults = ARRAY_SIZE(da7210_reg_defaults),
    .volatile_reg = da7210_volatile_register,
    .readable_reg = da7210_readable_register,
    .cache_type = REGCACHE_RBTREE,
};

static int __devinit da7210_i2c_probe(struct i2c_client *i2c,
                      const struct i2c_device_id *id)
{
    struct da7210_priv *da7210;
    int ret;

    da7210 = devm_kzalloc(&i2c->dev, sizeof(struct da7210_priv),
                  GFP_KERNEL);
    if (!da7210)
        return -ENOMEM;

    i2c_set_clientdata(i2c, da7210);

    da7210->regmap = regmap_init_i2c(i2c, &da7210_regmap_config_i2c);
    if (IS_ERR(da7210->regmap)) {
        ret = PTR_ERR(da7210->regmap);
        dev_err(&i2c->dev, "regmap_init() failed: %d\n", ret);
        return ret;
    }

    ret = regmap_register_patch(da7210->regmap, da7210_regmap_i2c_patch,
                    ARRAY_SIZE(da7210_regmap_i2c_patch));
    if (ret != 0)
        dev_warn(&i2c->dev, "Failed to apply regmap patch: %d\n", ret);

    ret =  snd_soc_register_codec(&i2c->dev,
            &soc_codec_dev_da7210, &da7210_dai, 1);
    if (ret < 0) {
        dev_err(&i2c->dev, "Failed to register codec: %d\n", ret);
        goto err_regmap;
    }
    return ret;

err_regmap:
    regmap_exit(da7210->regmap);

    return ret;
}

static int __devexit da7210_i2c_remove(struct i2c_client *client)
{
    struct da7210_priv *da7210 = i2c_get_clientdata(client);

    snd_soc_unregister_codec(&client->dev);
    regmap_exit(da7210->regmap);
    return 0;
}

static const struct i2c_device_id da7210_i2c_id[] = {
    { "da7210", 0 },
    { }
};
MODULE_DEVICE_TABLE(i2c, da7210_i2c_id);

/* I2C codec control layer */
static struct i2c_driver da7210_i2c_driver = {
    .driver = {
        .name = "da7210",
        .owner = THIS_MODULE,
    },
    .probe      = da7210_i2c_probe,
    .remove     = __devexit_p(da7210_i2c_remove),
    .id_table   = da7210_i2c_id,
};
#endif

#if defined(CONFIG_SPI_MASTER)

static struct reg_default da7210_regmap_spi_patch[] = {
    /* Dummy read to give two pulses over nCS for SPI */
    { DA7210_AUX2, 0x00 },
    { DA7210_AUX2, 0x00 },

    /* System controller master disable */
    { DA7210_STARTUP1, 0x00 },
    /* Set PLL Master clock range 10-20 MHz */
    { DA7210_PLL_DIV3, DA7210_MCLK_RANGE_10_20_MHZ },

    /* to set PAGE1 of SPI register space */
    { DA7210_PAGE_CONTROL, 0x80 },
    /* to unlock */
    { DA7210_A_HID_UNLOCK, 0x8B},
    { DA7210_A_TEST_UNLOCK, 0xB4},
    { DA7210_A_PLL1, 0x01},
    { DA7210_A_CP_MODE, 0x7C},
    /* to re-lock */
    { DA7210_A_HID_UNLOCK, 0x00},
    { DA7210_A_TEST_UNLOCK, 0x00},
    /* to set back PAGE0 of SPI register space */
    { DA7210_PAGE_CONTROL, 0x00 },
};

static const struct regmap_config da7210_regmap_config_spi = {
    .reg_bits = 8,
    .val_bits = 8,
    .read_flag_mask = 0x01,
    .write_flag_mask = 0x00,

    .reg_defaults = da7210_reg_defaults,
    .num_reg_defaults = ARRAY_SIZE(da7210_reg_defaults),
    .volatile_reg = da7210_volatile_register,
    .readable_reg = da7210_readable_register,
    .cache_type = REGCACHE_RBTREE,
};

static int __devinit da7210_spi_probe(struct spi_device *spi)
{
    struct da7210_priv *da7210;
    int ret;

    da7210 = devm_kzalloc(&spi->dev, sizeof(struct da7210_priv),
                  GFP_KERNEL);
    if (!da7210)
        return -ENOMEM;

    spi_set_drvdata(spi, da7210);
    da7210->regmap = devm_regmap_init_spi(spi, &da7210_regmap_config_spi);
    if (IS_ERR(da7210->regmap)) {
        ret = PTR_ERR(da7210->regmap);
        dev_err(&spi->dev, "Failed to register regmap: %d\n", ret);
        return ret;
    }

    ret = regmap_register_patch(da7210->regmap, da7210_regmap_spi_patch,
                    ARRAY_SIZE(da7210_regmap_spi_patch));
    if (ret != 0)
        dev_warn(&spi->dev, "Failed to apply regmap patch: %d\n", ret);

    ret =  snd_soc_register_codec(&spi->dev,
            &soc_codec_dev_da7210, &da7210_dai, 1);
    if (ret < 0)
        goto err_regmap;

    return ret;

err_regmap:
    regmap_exit(da7210->regmap);

    return ret;
}

static int __devexit da7210_spi_remove(struct spi_device *spi)
{
    struct da7210_priv *da7210 = spi_get_drvdata(spi);
    snd_soc_unregister_codec(&spi->dev);
    regmap_exit(da7210->regmap);
    return 0;
}

static struct spi_driver da7210_spi_driver = {
    .driver = {
        .name = "da7210",
        .owner = THIS_MODULE,
    },
    .probe = da7210_spi_probe,
    .remove = __devexit_p(da7210_spi_remove)
};
#endif

static int __init da7210_modinit(void)
{
    int ret = 0;
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
    ret = i2c_add_driver(&da7210_i2c_driver);
#endif
#if defined(CONFIG_SPI_MASTER)
    ret = spi_register_driver(&da7210_spi_driver);
    if (ret) {
        printk(KERN_ERR "Failed to register da7210 SPI driver: %d\n",
               ret);
    }
#endif
    return ret;
}
module_init(da7210_modinit);

static void __exit da7210_exit(void)
{
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
    i2c_del_driver(&da7210_i2c_driver);
#endif
#if defined(CONFIG_SPI_MASTER)
    spi_unregister_driver(&da7210_spi_driver);
#endif
}
module_exit(da7210_exit);

MODULE_DESCRIPTION("ASoC DA7210 driver");
MODULE_AUTHOR("David Chen, Kuninori Morimoto");
MODULE_LICENSE("GPL");