mc13783.c

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/*
 * Copyright 2008 Juergen Beisert, [email protected]
 * Copyright 2009 Sascha Hauer, [email protected]
 * Copyright 2012 Philippe Retornaz, [email protected]
 *
 * Initial development of this code was funded by
 * Phytec Messtechnik GmbH, http://www.phytec.de
 *
 * 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.
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 * MA  02110-1301, USA.
 */
#include <linux/module.h>
#include <linux/device.h>
#include <linux/mfd/mc13xxx.h>
#include <linux/slab.h>
#include <sound/core.h>
#include <sound/control.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <sound/initval.h>
#include <sound/soc-dapm.h>

#include "mc13783.h"

#define MC13783_AUDIO_RX0   36
#define MC13783_AUDIO_RX1   37
#define MC13783_AUDIO_TX    38
#define MC13783_SSI_NETWORK 39
#define MC13783_AUDIO_CODEC 40
#define MC13783_AUDIO_DAC   41

#define AUDIO_RX0_ALSPEN        (1 << 5)
#define AUDIO_RX0_ALSPSEL       (1 << 7)
#define AUDIO_RX0_ADDCDC        (1 << 21)
#define AUDIO_RX0_ADDSTDC       (1 << 22)
#define AUDIO_RX0_ADDRXIN       (1 << 23)

#define AUDIO_RX1_PGARXEN       (1 << 0);
#define AUDIO_RX1_PGASTEN       (1 << 5)
#define AUDIO_RX1_ARXINEN       (1 << 10)

#define AUDIO_TX_AMC1REN        (1 << 5)
#define AUDIO_TX_AMC1LEN        (1 << 7)
#define AUDIO_TX_AMC2EN         (1 << 9)
#define AUDIO_TX_ATXINEN        (1 << 11)
#define AUDIO_TX_RXINREC        (1 << 13)

#define SSI_NETWORK_CDCTXRXSLOT(x)  (((x) & 0x3) << 2)
#define SSI_NETWORK_CDCTXSECSLOT(x) (((x) & 0x3) << 4)
#define SSI_NETWORK_CDCRXSECSLOT(x) (((x) & 0x3) << 6)
#define SSI_NETWORK_CDCRXSECGAIN(x) (((x) & 0x3) << 8)
#define SSI_NETWORK_CDCSUMGAIN(x)   (1 << 10)
#define SSI_NETWORK_CDCFSDLY(x)     (1 << 11)
#define SSI_NETWORK_DAC_SLOTS_8     (1 << 12)
#define SSI_NETWORK_DAC_SLOTS_4     (2 << 12)
#define SSI_NETWORK_DAC_SLOTS_2     (3 << 12)
#define SSI_NETWORK_DAC_SLOT_MASK   (3 << 12)
#define SSI_NETWORK_DAC_RXSLOT_0_1  (0 << 14)
#define SSI_NETWORK_DAC_RXSLOT_2_3  (1 << 14)
#define SSI_NETWORK_DAC_RXSLOT_4_5  (2 << 14)
#define SSI_NETWORK_DAC_RXSLOT_6_7  (3 << 14)
#define SSI_NETWORK_DAC_RXSLOT_MASK (3 << 14)
#define SSI_NETWORK_STDCRXSECSLOT(x)    (((x) & 0x3) << 16)
#define SSI_NETWORK_STDCRXSECGAIN(x)    (((x) & 0x3) << 18)
#define SSI_NETWORK_STDCSUMGAIN     (1 << 20)

/*
 * MC13783_AUDIO_CODEC and MC13783_AUDIO_DAC mostly share the same
 * register layout
 */
#define AUDIO_SSI_SEL           (1 << 0)
#define AUDIO_CLK_SEL           (1 << 1)
#define AUDIO_CSM           (1 << 2)
#define AUDIO_BCL_INV           (1 << 3)
#define AUDIO_CFS_INV           (1 << 4)
#define AUDIO_CFS(x)            (((x) & 0x3) << 5)
#define AUDIO_CLK(x)            (((x) & 0x7) << 7)
#define AUDIO_C_EN          (1 << 11)
#define AUDIO_C_CLK_EN          (1 << 12)
#define AUDIO_C_RESET           (1 << 15)

#define AUDIO_CODEC_CDCFS8K16K      (1 << 10)
#define AUDIO_DAC_CFS_DLY_B     (1 << 10)

struct mc13783_priv {
    struct snd_soc_codec codec;
    struct mc13xxx *mc13xxx;

    enum mc13783_ssi_port adc_ssi_port;
    enum mc13783_ssi_port dac_ssi_port;
};

static unsigned int mc13783_read(struct snd_soc_codec *codec,
    unsigned int reg)
{
    struct mc13783_priv *priv = snd_soc_codec_get_drvdata(codec);
    unsigned int value = 0;

    mc13xxx_lock(priv->mc13xxx);

    mc13xxx_reg_read(priv->mc13xxx, reg, &value);

    mc13xxx_unlock(priv->mc13xxx);

    return value;
}

static int mc13783_write(struct snd_soc_codec *codec,
    unsigned int reg, unsigned int value)
{
    struct mc13783_priv *priv = snd_soc_codec_get_drvdata(codec);
    int ret;

    mc13xxx_lock(priv->mc13xxx);

    ret = mc13xxx_reg_write(priv->mc13xxx, reg, value);

    mc13xxx_unlock(priv->mc13xxx);

    return ret;
}

/* Mapping between sample rates and register value */
static unsigned int mc13783_rates[] = {
    8000, 11025, 12000, 16000,
    22050, 24000, 32000, 44100,
    48000, 64000, 96000
};

static int mc13783_pcm_hw_params_dac(struct snd_pcm_substream *substream,
                struct snd_pcm_hw_params *params,
                struct snd_soc_dai *dai)
{
    struct snd_soc_pcm_runtime *rtd = substream->private_data;
    struct snd_soc_codec *codec = rtd->codec;
    unsigned int rate = params_rate(params);
    int i;

    for (i = 0; i < ARRAY_SIZE(mc13783_rates); i++) {
        if (rate == mc13783_rates[i]) {
            snd_soc_update_bits(codec, MC13783_AUDIO_DAC,
                    0xf << 17, i << 17);
            return 0;
        }
    }

    return -EINVAL;
}

static int mc13783_pcm_hw_params_codec(struct snd_pcm_substream *substream,
                struct snd_pcm_hw_params *params,
                struct snd_soc_dai *dai)
{
    struct snd_soc_pcm_runtime *rtd = substream->private_data;
    struct snd_soc_codec *codec = rtd->codec;
    unsigned int rate = params_rate(params);
    unsigned int val;

    switch (rate) {
    case 8000:
        val = 0;
        break;
    case 16000:
        val = AUDIO_CODEC_CDCFS8K16K;
        break;
    default:
        return -EINVAL;
    }

    snd_soc_update_bits(codec, MC13783_AUDIO_CODEC, AUDIO_CODEC_CDCFS8K16K,
            val);

    return 0;
}

static int mc13783_pcm_hw_params_sync(struct snd_pcm_substream *substream,
                struct snd_pcm_hw_params *params,
                struct snd_soc_dai *dai)
{
    if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
        return mc13783_pcm_hw_params_dac(substream, params, dai);
    else
        return mc13783_pcm_hw_params_codec(substream, params, dai);
}

static int mc13783_set_fmt(struct snd_soc_dai *dai, unsigned int fmt,
            unsigned int reg)
{
    struct snd_soc_codec *codec = dai->codec;
    unsigned int val = 0;
    unsigned int mask = AUDIO_CFS(3) | AUDIO_BCL_INV | AUDIO_CFS_INV |
                AUDIO_CSM | AUDIO_C_CLK_EN | AUDIO_C_RESET;


    /* DAI mode */
    switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
    case SND_SOC_DAIFMT_I2S:
        val |= AUDIO_CFS(2);
        break;
    case SND_SOC_DAIFMT_DSP_A:
        val |= AUDIO_CFS(1);
        break;
    default:
        return -EINVAL;
    }

    /* DAI clock inversion */
    switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
    case SND_SOC_DAIFMT_NB_NF:
        val |= AUDIO_BCL_INV;
        break;
    case SND_SOC_DAIFMT_NB_IF:
        val |= AUDIO_BCL_INV | AUDIO_CFS_INV;
        break;
    case SND_SOC_DAIFMT_IB_NF:
        break;
    case SND_SOC_DAIFMT_IB_IF:
        val |= AUDIO_CFS_INV;
        break;
    }

    /* DAI clock master masks */
    switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
    case SND_SOC_DAIFMT_CBM_CFM:
        val |= AUDIO_C_CLK_EN;
        break;
    case SND_SOC_DAIFMT_CBS_CFS:
        val |= AUDIO_CSM;
        break;
    case SND_SOC_DAIFMT_CBM_CFS:
    case SND_SOC_DAIFMT_CBS_CFM:
        return -EINVAL;
    }

    val |= AUDIO_C_RESET;

    snd_soc_update_bits(codec, reg, mask, val);

    return 0;
}

static int mc13783_set_fmt_async(struct snd_soc_dai *dai, unsigned int fmt)
{
    if (dai->id == MC13783_ID_STEREO_DAC)
        return mc13783_set_fmt(dai, fmt, MC13783_AUDIO_DAC);
    else
        return mc13783_set_fmt(dai, fmt, MC13783_AUDIO_CODEC);
}

static int mc13783_set_fmt_sync(struct snd_soc_dai *dai, unsigned int fmt)
{
    int ret;

    ret = mc13783_set_fmt(dai, fmt, MC13783_AUDIO_DAC);
    if (ret)
        return ret;

    /*
     * In synchronous mode force the voice codec into slave mode
     * so that the clock / framesync from the stereo DAC is used
     */
    fmt &= ~SND_SOC_DAIFMT_MASTER_MASK;
    fmt |= SND_SOC_DAIFMT_CBS_CFS;
    ret = mc13783_set_fmt(dai, fmt, MC13783_AUDIO_CODEC);

    return ret;
}

static int mc13783_sysclk[] = {
    13000000,
    15360000,
    16800000,
    -1,
    26000000,
    -1, /* 12000000, invalid for voice codec */
    -1, /* 3686400, invalid for voice codec */
    33600000,
};

static int mc13783_set_sysclk(struct snd_soc_dai *dai,
                  int clk_id, unsigned int freq, int dir,
                  unsigned int reg)
{
    struct snd_soc_codec *codec = dai->codec;
    int clk;
    unsigned int val = 0;
    unsigned int mask = AUDIO_CLK(0x7) | AUDIO_CLK_SEL;

    for (clk = 0; clk < ARRAY_SIZE(mc13783_sysclk); clk++) {
        if (mc13783_sysclk[clk] < 0)
            continue;
        if (mc13783_sysclk[clk] == freq)
            break;
    }

    if (clk == ARRAY_SIZE(mc13783_sysclk))
        return -EINVAL;

    if (clk_id == MC13783_CLK_CLIB)
        val |= AUDIO_CLK_SEL;

    val |= AUDIO_CLK(clk);

    snd_soc_update_bits(codec, reg, mask, val);

    return 0;
}

static int mc13783_set_sysclk_dac(struct snd_soc_dai *dai,
                  int clk_id, unsigned int freq, int dir)
{
    return mc13783_set_sysclk(dai, clk_id, freq, dir, MC13783_AUDIO_DAC);
}

static int mc13783_set_sysclk_codec(struct snd_soc_dai *dai,
                  int clk_id, unsigned int freq, int dir)
{
    return mc13783_set_sysclk(dai, clk_id, freq, dir, MC13783_AUDIO_CODEC);
}

static int mc13783_set_sysclk_sync(struct snd_soc_dai *dai,
                  int clk_id, unsigned int freq, int dir)
{
    int ret;

    ret = mc13783_set_sysclk(dai, clk_id, freq, dir, MC13783_AUDIO_DAC);
    if (ret)
        return ret;

    return mc13783_set_sysclk(dai, clk_id, freq, dir, MC13783_AUDIO_CODEC);
}

static int mc13783_set_tdm_slot_dac(struct snd_soc_dai *dai,
    unsigned int tx_mask, unsigned int rx_mask, int slots,
    int slot_width)
{
    struct snd_soc_codec *codec = dai->codec;
    unsigned int val = 0;
    unsigned int mask = SSI_NETWORK_DAC_SLOT_MASK |
                SSI_NETWORK_DAC_RXSLOT_MASK;

    switch (slots) {
    case 2:
        val |= SSI_NETWORK_DAC_SLOTS_2;
        break;
    case 4:
        val |= SSI_NETWORK_DAC_SLOTS_4;
        break;
    case 8:
        val |= SSI_NETWORK_DAC_SLOTS_8;
        break;
    default:
        return -EINVAL;
    }

    switch (rx_mask) {
    case 0xfffffffc:
        val |= SSI_NETWORK_DAC_RXSLOT_0_1;
        break;
    case 0xfffffff3:
        val |= SSI_NETWORK_DAC_RXSLOT_2_3;
        break;
    case 0xffffffcf:
        val |= SSI_NETWORK_DAC_RXSLOT_4_5;
        break;
    case 0xffffff3f:
        val |= SSI_NETWORK_DAC_RXSLOT_6_7;
        break;
    default:
        return -EINVAL;
    };

    snd_soc_update_bits(codec, MC13783_SSI_NETWORK, mask, val);

    return 0;
}

static int mc13783_set_tdm_slot_codec(struct snd_soc_dai *dai,
    unsigned int tx_mask, unsigned int rx_mask, int slots,
    int slot_width)
{
    struct snd_soc_codec *codec = dai->codec;
    unsigned int val = 0;
    unsigned int mask = 0x3f;

    if (slots != 4)
        return -EINVAL;

    if (tx_mask != 0xfffffffc)
        return -EINVAL;

    val |= (0x00 << 2); /* primary timeslot RX/TX(?) is 0 */
    val |= (0x01 << 4); /* secondary timeslot TX is 1 */

    snd_soc_update_bits(codec, MC13783_SSI_NETWORK, mask, val);

    return 0;
}

static int mc13783_set_tdm_slot_sync(struct snd_soc_dai *dai,
    unsigned int tx_mask, unsigned int rx_mask, int slots,
    int slot_width)
{
    int ret;

    ret = mc13783_set_tdm_slot_dac(dai, tx_mask, rx_mask, slots,
            slot_width);
    if (ret)
        return ret;

    ret = mc13783_set_tdm_slot_codec(dai, tx_mask, rx_mask, slots,
            slot_width);

    return ret;
}

static const struct snd_kcontrol_new mc1l_amp_ctl =
    SOC_DAPM_SINGLE("Switch", MC13783_AUDIO_TX, 7, 1, 0);

static const struct snd_kcontrol_new mc1r_amp_ctl =
    SOC_DAPM_SINGLE("Switch", MC13783_AUDIO_TX, 5, 1, 0);

static const struct snd_kcontrol_new mc2_amp_ctl =
    SOC_DAPM_SINGLE("Switch", MC13783_AUDIO_TX, 9, 1, 0);

static const struct snd_kcontrol_new atx_amp_ctl =
    SOC_DAPM_SINGLE("Switch", MC13783_AUDIO_TX, 11, 1, 0);


/* Virtual mux. The chip does the input selection automatically
 * as soon as we enable one input. */
static const char * const adcl_enum_text[] = {
    "MC1L", "RXINL",
};

static const struct soc_enum adcl_enum =
    SOC_ENUM_SINGLE(0, 0, ARRAY_SIZE(adcl_enum_text), adcl_enum_text);

static const struct snd_kcontrol_new left_input_mux =
    SOC_DAPM_ENUM_VIRT("Route", adcl_enum);

static const char * const adcr_enum_text[] = {
    "MC1R", "MC2", "RXINR", "TXIN",
};

static const struct soc_enum adcr_enum =
    SOC_ENUM_SINGLE(0, 0, ARRAY_SIZE(adcr_enum_text), adcr_enum_text);

static const struct snd_kcontrol_new right_input_mux =
    SOC_DAPM_ENUM_VIRT("Route", adcr_enum);

static const struct snd_kcontrol_new samp_ctl =
    SOC_DAPM_SINGLE("Switch", MC13783_AUDIO_RX0, 3, 1, 0);

static const struct snd_kcontrol_new lamp_ctl =
    SOC_DAPM_SINGLE("Switch", MC13783_AUDIO_RX0, 5, 1, 0);

static const struct snd_kcontrol_new hlamp_ctl =
    SOC_DAPM_SINGLE("Switch", MC13783_AUDIO_RX0, 10, 1, 0);

static const struct snd_kcontrol_new hramp_ctl =
    SOC_DAPM_SINGLE("Switch", MC13783_AUDIO_RX0, 9, 1, 0);

static const struct snd_kcontrol_new llamp_ctl =
    SOC_DAPM_SINGLE("Switch", MC13783_AUDIO_RX0, 16, 1, 0);

static const struct snd_kcontrol_new lramp_ctl =
    SOC_DAPM_SINGLE("Switch", MC13783_AUDIO_RX0, 15, 1, 0);

static const struct snd_soc_dapm_widget mc13783_dapm_widgets[] = {
/* Input */
    SND_SOC_DAPM_INPUT("MC1LIN"),
    SND_SOC_DAPM_INPUT("MC1RIN"),
    SND_SOC_DAPM_INPUT("MC2IN"),
    SND_SOC_DAPM_INPUT("RXINR"),
    SND_SOC_DAPM_INPUT("RXINL"),
    SND_SOC_DAPM_INPUT("TXIN"),

    SND_SOC_DAPM_SUPPLY("MC1 Bias", MC13783_AUDIO_TX, 0, 0, NULL, 0),
    SND_SOC_DAPM_SUPPLY("MC2 Bias", MC13783_AUDIO_TX, 1, 0, NULL, 0),

    SND_SOC_DAPM_SWITCH("MC1L Amp", MC13783_AUDIO_TX, 7, 0, &mc1l_amp_ctl),
    SND_SOC_DAPM_SWITCH("MC1R Amp", MC13783_AUDIO_TX, 5, 0, &mc1r_amp_ctl),
    SND_SOC_DAPM_SWITCH("MC2 Amp", MC13783_AUDIO_TX, 9, 0, &mc2_amp_ctl),
    SND_SOC_DAPM_SWITCH("TXIN Amp", MC13783_AUDIO_TX, 11, 0, &atx_amp_ctl),

    SND_SOC_DAPM_VIRT_MUX("PGA Left Input Mux", SND_SOC_NOPM, 0, 0,
                  &left_input_mux),
    SND_SOC_DAPM_VIRT_MUX("PGA Right Input Mux", SND_SOC_NOPM, 0, 0,
                  &right_input_mux),

    SND_SOC_DAPM_PGA("PGA Left Input", SND_SOC_NOPM, 0, 0, NULL, 0),
    SND_SOC_DAPM_PGA("PGA Right Input", SND_SOC_NOPM, 0, 0, NULL, 0),

    SND_SOC_DAPM_ADC("ADC", "Capture", MC13783_AUDIO_CODEC, 11, 0),
    SND_SOC_DAPM_SUPPLY("ADC_Reset", MC13783_AUDIO_CODEC, 15, 0, NULL, 0),

/* Output */
    SND_SOC_DAPM_SUPPLY("DAC_E", MC13783_AUDIO_DAC, 11, 0, NULL, 0),
    SND_SOC_DAPM_SUPPLY("DAC_Reset", MC13783_AUDIO_DAC, 15, 0, NULL, 0),
    SND_SOC_DAPM_OUTPUT("RXOUTL"),
    SND_SOC_DAPM_OUTPUT("RXOUTR"),
    SND_SOC_DAPM_OUTPUT("HSL"),
    SND_SOC_DAPM_OUTPUT("HSR"),
    SND_SOC_DAPM_OUTPUT("LSP"),
    SND_SOC_DAPM_OUTPUT("SP"),

    SND_SOC_DAPM_SWITCH("Speaker Amp", MC13783_AUDIO_RX0, 3, 0, &samp_ctl),
    SND_SOC_DAPM_SWITCH("Loudspeaker Amp", SND_SOC_NOPM, 0, 0, &lamp_ctl),
    SND_SOC_DAPM_SWITCH("Headset Amp Left", MC13783_AUDIO_RX0, 10, 0,
            &hlamp_ctl),
    SND_SOC_DAPM_SWITCH("Headset Amp Right", MC13783_AUDIO_RX0, 9, 0,
            &hramp_ctl),
    SND_SOC_DAPM_SWITCH("Line out Amp Left", MC13783_AUDIO_RX0, 16, 0,
            &llamp_ctl),
    SND_SOC_DAPM_SWITCH("Line out Amp Right", MC13783_AUDIO_RX0, 15, 0,
            &lramp_ctl),
    SND_SOC_DAPM_DAC("DAC", "Playback", MC13783_AUDIO_RX0, 22, 0),
    SND_SOC_DAPM_PGA("DAC PGA", MC13783_AUDIO_RX1, 5, 0, NULL, 0),
};

static struct snd_soc_dapm_route mc13783_routes[] = {
/* Input */
    { "MC1L Amp", NULL, "MC1LIN"},
    { "MC1R Amp", NULL, "MC1RIN" },
    { "MC2 Amp", NULL, "MC2IN" },
    { "TXIN Amp", NULL, "TXIN"},

    { "PGA Left Input Mux", "MC1L", "MC1L Amp" },
    { "PGA Left Input Mux", "RXINL", "RXINL"},
    { "PGA Right Input Mux", "MC1R", "MC1R Amp" },
    { "PGA Right Input Mux", "MC2",  "MC2 Amp"},
    { "PGA Right Input Mux", "TXIN", "TXIN Amp"},
    { "PGA Right Input Mux", "RXINR", "RXINR"},

    { "PGA Left Input", NULL, "PGA Left Input Mux"},
    { "PGA Right Input", NULL, "PGA Right Input Mux"},

    { "ADC", NULL, "PGA Left Input"},
    { "ADC", NULL, "PGA Right Input"},
    { "ADC", NULL, "ADC_Reset"},

/* Output */
    { "HSL", NULL, "Headset Amp Left" },
    { "HSR", NULL, "Headset Amp Right"},
    { "RXOUTL", NULL, "Line out Amp Left"},
    { "RXOUTR", NULL, "Line out Amp Right"},
    { "SP", NULL, "Speaker Amp"},
    { "Speaker Amp", NULL, "DAC PGA"},
    { "LSP", NULL, "DAC PGA"},
    { "Headset Amp Left", NULL, "DAC PGA"},
    { "Headset Amp Right", NULL, "DAC PGA"},
    { "Line out Amp Left", NULL, "DAC PGA"},
    { "Line out Amp Right", NULL, "DAC PGA"},
    { "DAC PGA", NULL, "DAC"},
    { "DAC", NULL, "DAC_E"},
};

static const char * const mc13783_3d_mixer[] = {"Stereo", "Phase Mix",
                        "Mono", "Mono Mix"};

static const struct soc_enum mc13783_enum_3d_mixer =
    SOC_ENUM_SINGLE(MC13783_AUDIO_RX1, 16, ARRAY_SIZE(mc13783_3d_mixer),
            mc13783_3d_mixer);

static struct snd_kcontrol_new mc13783_control_list[] = {
    SOC_SINGLE("Loudspeaker enable", MC13783_AUDIO_RX0, 5, 1, 0),
    SOC_SINGLE("PCM Playback Volume", MC13783_AUDIO_RX1, 6, 15, 0),
    SOC_DOUBLE("PCM Capture Volume", MC13783_AUDIO_TX, 19, 14, 31, 0),
    SOC_ENUM("3D Control", mc13783_enum_3d_mixer),
};

static int mc13783_probe(struct snd_soc_codec *codec)
{
    struct mc13783_priv *priv = snd_soc_codec_get_drvdata(codec);

    mc13xxx_lock(priv->mc13xxx);

    /* these are the reset values */
    mc13xxx_reg_write(priv->mc13xxx, MC13783_AUDIO_RX0, 0x25893);
    mc13xxx_reg_write(priv->mc13xxx, MC13783_AUDIO_RX1, 0x00d35A);
    mc13xxx_reg_write(priv->mc13xxx, MC13783_AUDIO_TX, 0x420000);
    mc13xxx_reg_write(priv->mc13xxx, MC13783_SSI_NETWORK, 0x013060);
    mc13xxx_reg_write(priv->mc13xxx, MC13783_AUDIO_CODEC, 0x180027);
    mc13xxx_reg_write(priv->mc13xxx, MC13783_AUDIO_DAC, 0x0e0004);

    if (priv->adc_ssi_port == MC13783_SSI1_PORT)
        mc13xxx_reg_rmw(priv->mc13xxx, MC13783_AUDIO_CODEC,
                AUDIO_SSI_SEL, 0);
    else
        mc13xxx_reg_rmw(priv->mc13xxx, MC13783_AUDIO_CODEC,
                0, AUDIO_SSI_SEL);

    if (priv->dac_ssi_port == MC13783_SSI1_PORT)
        mc13xxx_reg_rmw(priv->mc13xxx, MC13783_AUDIO_DAC,
                AUDIO_SSI_SEL, 0);
    else
        mc13xxx_reg_rmw(priv->mc13xxx, MC13783_AUDIO_DAC,
                0, AUDIO_SSI_SEL);

    mc13xxx_unlock(priv->mc13xxx);

    return 0;
}

static int mc13783_remove(struct snd_soc_codec *codec)
{
    struct mc13783_priv *priv = snd_soc_codec_get_drvdata(codec);

    mc13xxx_lock(priv->mc13xxx);

    /* Make sure VAUDIOON is off */
    mc13xxx_reg_rmw(priv->mc13xxx, MC13783_AUDIO_RX0, 0x3, 0);

    mc13xxx_unlock(priv->mc13xxx);

    return 0;
}

#define MC13783_RATES_RECORD (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000)

#define MC13783_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
    SNDRV_PCM_FMTBIT_S24_LE)

static struct snd_soc_dai_ops mc13783_ops_dac = {
    .hw_params  = mc13783_pcm_hw_params_dac,
    .set_fmt    = mc13783_set_fmt_async,
    .set_sysclk = mc13783_set_sysclk_dac,
    .set_tdm_slot   = mc13783_set_tdm_slot_dac,
};

static struct snd_soc_dai_ops mc13783_ops_codec = {
    .hw_params  = mc13783_pcm_hw_params_codec,
    .set_fmt    = mc13783_set_fmt_async,
    .set_sysclk = mc13783_set_sysclk_codec,
    .set_tdm_slot   = mc13783_set_tdm_slot_codec,
};

/*
 * The mc13783 has two SSI ports, both of them can be routed either
 * to the voice codec or the stereo DAC. When two different SSI ports
 * are used for the voice codec and the stereo DAC we can do different
 * formats and sysclock settings for playback and capture
 * (mc13783-hifi-playback and mc13783-hifi-capture). Using the same port
 * forces us to use symmetric rates (mc13783-hifi).
 */
static struct snd_soc_dai_driver mc13783_dai_async[] = {
    {
        .name = "mc13783-hifi-playback",
        .id = MC13783_ID_STEREO_DAC,
        .playback = {
            .stream_name = "Playback",
            .channels_min = 2,
            .channels_max = 2,
            .rates = SNDRV_PCM_RATE_8000_96000,
            .formats = MC13783_FORMATS,
        },
        .ops = &mc13783_ops_dac,
    }, {
        .name = "mc13783-hifi-capture",
        .id = MC13783_ID_STEREO_CODEC,
        .capture = {
            .stream_name = "Capture",
            .channels_min = 2,
            .channels_max = 2,
            .rates = MC13783_RATES_RECORD,
            .formats = MC13783_FORMATS,
        },
        .ops = &mc13783_ops_codec,
    },
};

static struct snd_soc_dai_ops mc13783_ops_sync = {
    .hw_params  = mc13783_pcm_hw_params_sync,
    .set_fmt    = mc13783_set_fmt_sync,
    .set_sysclk = mc13783_set_sysclk_sync,
    .set_tdm_slot   = mc13783_set_tdm_slot_sync,
};

static struct snd_soc_dai_driver mc13783_dai_sync[] = {
    {
        .name = "mc13783-hifi",
        .id = MC13783_ID_SYNC,
        .playback = {
            .stream_name = "Playback",
            .channels_min = 2,
            .channels_max = 2,
            .rates = SNDRV_PCM_RATE_8000_96000,
            .formats = MC13783_FORMATS,
        },
        .capture = {
            .stream_name = "Capture",
            .channels_min = 2,
            .channels_max = 2,
            .rates = MC13783_RATES_RECORD,
            .formats = MC13783_FORMATS,
        },
        .ops = &mc13783_ops_sync,
        .symmetric_rates = 1,
    }
};

static struct snd_soc_codec_driver soc_codec_dev_mc13783 = {
    .probe      = mc13783_probe,
    .remove     = mc13783_remove,
    .read       = mc13783_read,
    .write      = mc13783_write,
    .controls   = mc13783_control_list,
    .num_controls   = ARRAY_SIZE(mc13783_control_list),
    .dapm_widgets   = mc13783_dapm_widgets,
    .num_dapm_widgets = ARRAY_SIZE(mc13783_dapm_widgets),
    .dapm_routes    = mc13783_routes,
    .num_dapm_routes = ARRAY_SIZE(mc13783_routes),
};

static int mc13783_codec_probe(struct platform_device *pdev)
{
    struct mc13xxx *mc13xxx;
    struct mc13783_priv *priv;
    struct mc13xxx_codec_platform_data *pdata = pdev->dev.platform_data;
    int ret;

    mc13xxx = dev_get_drvdata(pdev->dev.parent);


    priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
    if (priv == NULL)
        return -ENOMEM;

    dev_set_drvdata(&pdev->dev, priv);
    priv->mc13xxx = mc13xxx;
    if (pdata) {
        priv->adc_ssi_port = pdata->adc_ssi_port;
        priv->dac_ssi_port = pdata->dac_ssi_port;
    } else {
        priv->adc_ssi_port = MC13783_SSI1_PORT;
        priv->dac_ssi_port = MC13783_SSI2_PORT;
    }

    if (priv->adc_ssi_port == priv->dac_ssi_port)
        ret = snd_soc_register_codec(&pdev->dev, &soc_codec_dev_mc13783,
            mc13783_dai_sync, ARRAY_SIZE(mc13783_dai_sync));
    else
        ret = snd_soc_register_codec(&pdev->dev, &soc_codec_dev_mc13783,
            mc13783_dai_async, ARRAY_SIZE(mc13783_dai_async));

    if (ret)
        goto err_register_codec;

    return 0;

err_register_codec:
    dev_err(&pdev->dev, "register codec failed with %d\n", ret);

    return ret;
}

static int mc13783_codec_remove(struct platform_device *pdev)
{
    snd_soc_unregister_codec(&pdev->dev);

    return 0;
}

static struct platform_driver mc13783_codec_driver = {
    .driver = {
           .name = "mc13783-codec",
           .owner = THIS_MODULE,
           },
    .probe = mc13783_codec_probe,
    .remove = __devexit_p(mc13783_codec_remove),
};

module_platform_driver(mc13783_codec_driver);

MODULE_DESCRIPTION("ASoC MC13783 driver");
MODULE_AUTHOR("Sascha Hauer, Pengutronix <[email protected]>");
MODULE_AUTHOR("Philippe Retornaz <[email protected]>");
MODULE_LICENSE("GPL");