// SPDX-License-Identifier: GPL-2.0-only
/*
 * C-Media CMI8788 driver for C-Media's reference design and similar models
 *
 * Copyright (c) Clemens Ladisch <clemens@ladisch.de>
 */

/*
 * CMI8788:
 *
 *   SPI 0 -> 1st AK4396 (front)
 *   SPI 1 -> 2nd AK4396 (surround)
 *   SPI 2 -> 3rd AK4396 (center/LFE)
 *   SPI 3 -> WM8785
 *   SPI 4 -> 4th AK4396 (back)
 *
 *   GPIO 0 -> DFS0 of AK5385
 *   GPIO 1 -> DFS1 of AK5385
 *
 * X-Meridian models:
 *   GPIO 4 -> enable extension S/PDIF input
 *   GPIO 6 -> enable on-board S/PDIF input
 *
 * Claro models:
 *   GPIO 6 -> S/PDIF from optical (0) or coaxial (1) input
 *   GPIO 8 -> enable headphone amplifier
 *
 * CM9780:
 *
 *   LINE_OUT -> input of ADC
 *
 *   AUX_IN <- aux
 *   CD_IN  <- CD
 *   MIC_IN <- mic
 *
 *   GPO 0 -> route line-in (0) or AC97 output (1) to ADC input
 */

#include <linux/delay.h>
#include <linux/mutex.h>
#include <linux/pci.h>
#include <linux/module.h>
#include <sound/ac97_codec.h>
#include <sound/control.h>
#include <sound/core.h>
#include <sound/info.h>
#include <sound/initval.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/tlv.h>
#include "oxygen.h"
#include "xonar_dg.h"
#include "ak4396.h"
#include "wm8785.h"

MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
MODULE_DESCRIPTION("C-Media CMI8788 driver");
MODULE_LICENSE("GPL v2");

static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;

module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "card index");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "enable card");

enum {
        MODEL_CMEDIA_REF,
        MODEL_MERIDIAN,
        MODEL_MERIDIAN_2G,
        MODEL_CLARO,
        MODEL_CLARO_HALO,
        MODEL_FANTASIA,
        MODEL_SERENADE,
        MODEL_2CH_OUTPUT,
        MODEL_HG2PCI,
        MODEL_XONAR_DG,
        MODEL_XONAR_DGX,
};

static const struct pci_device_id oxygen_ids[] = {
        /* C-Media's reference design */
        { OXYGEN_PCI_SUBID(0x10b0, 0x0216), .driver_data = MODEL_CMEDIA_REF },
        { OXYGEN_PCI_SUBID(0x10b0, 0x0217), .driver_data = MODEL_CMEDIA_REF },
        { OXYGEN_PCI_SUBID(0x10b0, 0x0218), .driver_data = MODEL_CMEDIA_REF },
        { OXYGEN_PCI_SUBID(0x10b0, 0x0219), .driver_data = MODEL_CMEDIA_REF },
        { OXYGEN_PCI_SUBID(0x13f6, 0x0001), .driver_data = MODEL_CMEDIA_REF },
        { OXYGEN_PCI_SUBID(0x13f6, 0x0010), .driver_data = MODEL_CMEDIA_REF },
        { OXYGEN_PCI_SUBID(0x13f6, 0x8788), .driver_data = MODEL_CMEDIA_REF },
        { OXYGEN_PCI_SUBID(0x147a, 0xa017), .driver_data = MODEL_CMEDIA_REF },
        { OXYGEN_PCI_SUBID(0x1a58, 0x0910), .driver_data = MODEL_CMEDIA_REF },
        /* Asus Xonar DG */
        { OXYGEN_PCI_SUBID(0x1043, 0x8467), .driver_data = MODEL_XONAR_DG },
        /* Asus Xonar DGX */
        { OXYGEN_PCI_SUBID(0x1043, 0x8521), .driver_data = MODEL_XONAR_DGX },
        /* PCI 2.0 HD Audio */
        { OXYGEN_PCI_SUBID(0x13f6, 0x8782), .driver_data = MODEL_2CH_OUTPUT },
        /* Kuroutoshikou CMI8787-HG2PCI */
        { OXYGEN_PCI_SUBID(0x13f6, 0xffff), .driver_data = MODEL_HG2PCI },
        /* TempoTec HiFier Fantasia */
        { OXYGEN_PCI_SUBID(0x14c3, 0x1710), .driver_data = MODEL_FANTASIA },
        /* TempoTec HiFier Serenade */
        { OXYGEN_PCI_SUBID(0x14c3, 0x1711), .driver_data = MODEL_SERENADE },
        /* AuzenTech X-Meridian */
        { OXYGEN_PCI_SUBID(0x415a, 0x5431), .driver_data = MODEL_MERIDIAN },
        /* AuzenTech X-Meridian 2G */
        { OXYGEN_PCI_SUBID(0x5431, 0x017a), .driver_data = MODEL_MERIDIAN_2G },
        /* HT-Omega Claro */
        { OXYGEN_PCI_SUBID(0x7284, 0x9761), .driver_data = MODEL_CLARO },
        /* HT-Omega Claro halo */
        { OXYGEN_PCI_SUBID(0x7284, 0x9781), .driver_data = MODEL_CLARO_HALO },
        { }
};
MODULE_DEVICE_TABLE(pci, oxygen_ids);


#define GPIO_AK5385_DFS_MASK    0x0003
#define GPIO_AK5385_DFS_NORMAL  0x0000
#define GPIO_AK5385_DFS_DOUBLE  0x0001
#define GPIO_AK5385_DFS_QUAD    0x0002

#define GPIO_MERIDIAN_DIG_MASK  0x0050
#define GPIO_MERIDIAN_DIG_EXT   0x0010
#define GPIO_MERIDIAN_DIG_BOARD 0x0040

#define GPIO_CLARO_DIG_COAX     0x0040
#define GPIO_CLARO_HP           0x0100

struct generic_data {
        unsigned int dacs;
        u8 ak4396_regs[4][5];
        u16 wm8785_regs[3];
};

static void ak4396_write(struct oxygen *chip, unsigned int codec,
                         u8 reg, u8 value)
{
        /* maps ALSA channel pair number to SPI output */
        static const u8 codec_spi_map[4] = {
                0, 1, 2, 4
        };
        struct generic_data *data = chip->model_data;

        oxygen_write_spi(chip, OXYGEN_SPI_TRIGGER |
                         OXYGEN_SPI_DATA_LENGTH_2 |
                         OXYGEN_SPI_CLOCK_160 |
                         (codec_spi_map[codec] << OXYGEN_SPI_CODEC_SHIFT) |
                         OXYGEN_SPI_CEN_LATCH_CLOCK_HI,
                         AK4396_WRITE | (reg << 8) | value);
        data->ak4396_regs[codec][reg] = value;
}

static void ak4396_write_cached(struct oxygen *chip, unsigned int codec,
                                u8 reg, u8 value)
{
        struct generic_data *data = chip->model_data;

        if (value != data->ak4396_regs[codec][reg])
                ak4396_write(chip, codec, reg, value);
}

static void wm8785_write(struct oxygen *chip, u8 reg, unsigned int value)
{
        struct generic_data *data = chip->model_data;

        oxygen_write_spi(chip, OXYGEN_SPI_TRIGGER |
                         OXYGEN_SPI_DATA_LENGTH_2 |
                         OXYGEN_SPI_CLOCK_160 |
                         (3 << OXYGEN_SPI_CODEC_SHIFT) |
                         OXYGEN_SPI_CEN_LATCH_CLOCK_LO,
                         (reg << 9) | value);
        if (reg < ARRAY_SIZE(data->wm8785_regs))
                data->wm8785_regs[reg] = value;
}

static void ak4396_registers_init(struct oxygen *chip)
{
        struct generic_data *data = chip->model_data;
        unsigned int i;

        for (i = 0; i < data->dacs; ++i) {
                ak4396_write(chip, i, AK4396_CONTROL_1,
                             AK4396_DIF_24_MSB | AK4396_RSTN);
                ak4396_write(chip, i, AK4396_CONTROL_2,
                             data->ak4396_regs[0][AK4396_CONTROL_2]);
                ak4396_write(chip, i, AK4396_CONTROL_3,
                             AK4396_PCM);
                ak4396_write(chip, i, AK4396_LCH_ATT,
                             chip->dac_volume[i * 2]);
                ak4396_write(chip, i, AK4396_RCH_ATT,
                             chip->dac_volume[i * 2 + 1]);
        }
}

static void ak4396_init(struct oxygen *chip)
{
        struct generic_data *data = chip->model_data;

        data->dacs = chip->model.dac_channels_pcm / 2;
        data->ak4396_regs[0][AK4396_CONTROL_2] =
                AK4396_SMUTE | AK4396_DEM_OFF | AK4396_DFS_NORMAL;
        ak4396_registers_init(chip);
        snd_component_add(chip->card, "AK4396");
}

static void ak5385_init(struct oxygen *chip)
{
        oxygen_set_bits16(chip, OXYGEN_GPIO_CONTROL, GPIO_AK5385_DFS_MASK);
        oxygen_clear_bits16(chip, OXYGEN_GPIO_DATA, GPIO_AK5385_DFS_MASK);
        snd_component_add(chip->card, "AK5385");
}

static void wm8785_registers_init(struct oxygen *chip)
{
        struct generic_data *data = chip->model_data;

        wm8785_write(chip, WM8785_R7, 0);
        wm8785_write(chip, WM8785_R0, data->wm8785_regs[0]);
        wm8785_write(chip, WM8785_R2, data->wm8785_regs[2]);
}

static void wm8785_init(struct oxygen *chip)
{
        struct generic_data *data = chip->model_data;

        data->wm8785_regs[0] =
                WM8785_MCR_SLAVE | WM8785_OSR_SINGLE | WM8785_FORMAT_LJUST;
        data->wm8785_regs[2] = WM8785_HPFR | WM8785_HPFL;
        wm8785_registers_init(chip);
        snd_component_add(chip->card, "WM8785");
}

static void generic_init(struct oxygen *chip)
{
        ak4396_init(chip);
        wm8785_init(chip);
}

static void meridian_init(struct oxygen *chip)
{
        oxygen_set_bits16(chip, OXYGEN_GPIO_CONTROL,
                          GPIO_MERIDIAN_DIG_MASK);
        oxygen_write16_masked(chip, OXYGEN_GPIO_DATA,
                              GPIO_MERIDIAN_DIG_BOARD, GPIO_MERIDIAN_DIG_MASK);
        ak4396_init(chip);
        ak5385_init(chip);
}

static void claro_enable_hp(struct oxygen *chip)
{
        msleep(300);
        oxygen_set_bits16(chip, OXYGEN_GPIO_CONTROL, GPIO_CLARO_HP);
        oxygen_set_bits16(chip, OXYGEN_GPIO_DATA, GPIO_CLARO_HP);
}

static void claro_init(struct oxygen *chip)
{
        oxygen_set_bits16(chip, OXYGEN_GPIO_CONTROL, GPIO_CLARO_DIG_COAX);
        oxygen_clear_bits16(chip, OXYGEN_GPIO_DATA, GPIO_CLARO_DIG_COAX);
        ak4396_init(chip);
        wm8785_init(chip);
        claro_enable_hp(chip);
}

static void claro_halo_init(struct oxygen *chip)
{
        oxygen_set_bits16(chip, OXYGEN_GPIO_CONTROL, GPIO_CLARO_DIG_COAX);
        oxygen_clear_bits16(chip, OXYGEN_GPIO_DATA, GPIO_CLARO_DIG_COAX);
        ak4396_init(chip);
        ak5385_init(chip);
        claro_enable_hp(chip);
}

static void fantasia_init(struct oxygen *chip)
{
        ak4396_init(chip);
        snd_component_add(chip->card, "CS5340");
}

static void stereo_output_init(struct oxygen *chip)
{
        ak4396_init(chip);
}

static void generic_cleanup(struct oxygen *chip)
{
}

static void claro_disable_hp(struct oxygen *chip)
{
        oxygen_clear_bits16(chip, OXYGEN_GPIO_DATA, GPIO_CLARO_HP);
}

static void claro_cleanup(struct oxygen *chip)
{
        claro_disable_hp(chip);
}

static void claro_suspend(struct oxygen *chip)
{
        claro_disable_hp(chip);
}

static void generic_resume(struct oxygen *chip)
{
        ak4396_registers_init(chip);
        wm8785_registers_init(chip);
}

static void meridian_resume(struct oxygen *chip)
{
        ak4396_registers_init(chip);
}

static void claro_resume(struct oxygen *chip)
{
        ak4396_registers_init(chip);
        claro_enable_hp(chip);
}

static void stereo_resume(struct oxygen *chip)
{
        ak4396_registers_init(chip);
}

static void set_ak4396_params(struct oxygen *chip,
                              struct snd_pcm_hw_params *params)
{
        struct generic_data *data = chip->model_data;
        unsigned int i;
        u8 value;

        value = data->ak4396_regs[0][AK4396_CONTROL_2] & ~AK4396_DFS_MASK;
        if (params_rate(params) <= 54000)
                value |= AK4396_DFS_NORMAL;
        else if (params_rate(params) <= 108000)
                value |= AK4396_DFS_DOUBLE;
        else
                value |= AK4396_DFS_QUAD;

        msleep(1); /* wait for the new MCLK to become stable */

        if (value != data->ak4396_regs[0][AK4396_CONTROL_2]) {
                for (i = 0; i < data->dacs; ++i) {
                        ak4396_write(chip, i, AK4396_CONTROL_1,
                                     AK4396_DIF_24_MSB);
                        ak4396_write(chip, i, AK4396_CONTROL_2, value);
                        ak4396_write(chip, i, AK4396_CONTROL_1,
                                     AK4396_DIF_24_MSB | AK4396_RSTN);
                }
        }
}

static void update_ak4396_volume(struct oxygen *chip)
{
        struct generic_data *data = chip->model_data;
        unsigned int i;

        for (i = 0; i < data->dacs; ++i) {
                ak4396_write_cached(chip, i, AK4396_LCH_ATT,
                                    chip->dac_volume[i * 2]);
                ak4396_write_cached(chip, i, AK4396_RCH_ATT,
                                    chip->dac_volume[i * 2 + 1]);
        }
}

static void update_ak4396_mute(struct oxygen *chip)
{
        struct generic_data *data = chip->model_data;
        unsigned int i;
        u8 value;

        value = data->ak4396_regs[0][AK4396_CONTROL_2] & ~AK4396_SMUTE;
        if (chip->dac_mute)
                value |= AK4396_SMUTE;
        for (i = 0; i < data->dacs; ++i)
                ak4396_write_cached(chip, i, AK4396_CONTROL_2, value);
}

static void set_wm8785_params(struct oxygen *chip,
                              struct snd_pcm_hw_params *params)
{
        struct generic_data *data = chip->model_data;
        unsigned int value;

        value = WM8785_MCR_SLAVE | WM8785_FORMAT_LJUST;
        if (params_rate(params) <= 48000)
                value |= WM8785_OSR_SINGLE;
        else if (params_rate(params) <= 96000)
                value |= WM8785_OSR_DOUBLE;
        else
                value |= WM8785_OSR_QUAD;
        if (value != data->wm8785_regs[0]) {
                wm8785_write(chip, WM8785_R7, 0);
                wm8785_write(chip, WM8785_R0, value);
                wm8785_write(chip, WM8785_R2, data->wm8785_regs[2]);
        }
}

static void set_ak5385_params(struct oxygen *chip,
                              struct snd_pcm_hw_params *params)
{
        unsigned int value;

        if (params_rate(params) <= 54000)
                value = GPIO_AK5385_DFS_NORMAL;
        else if (params_rate(params) <= 108000)
                value = GPIO_AK5385_DFS_DOUBLE;
        else
                value = GPIO_AK5385_DFS_QUAD;
        oxygen_write16_masked(chip, OXYGEN_GPIO_DATA,
                              value, GPIO_AK5385_DFS_MASK);
}

static void set_no_params(struct oxygen *chip, struct snd_pcm_hw_params *params)
{
}

static int rolloff_info(struct snd_kcontrol *ctl,
                        struct snd_ctl_elem_info *info)
{
        static const char *const names[2] = {
                "Sharp Roll-off", "Slow Roll-off"
        };

        return snd_ctl_enum_info(info, 1, 2, names);
}

static int rolloff_get(struct snd_kcontrol *ctl,
                       struct snd_ctl_elem_value *value)
{
        struct oxygen *chip = ctl->private_data;
        struct generic_data *data = chip->model_data;

        value->value.enumerated.item[0] =
                (data->ak4396_regs[0][AK4396_CONTROL_2] & AK4396_SLOW) != 0;
        return 0;
}

static int rolloff_put(struct snd_kcontrol *ctl,
                       struct snd_ctl_elem_value *value)
{
        struct oxygen *chip = ctl->private_data;
        struct generic_data *data = chip->model_data;
        unsigned int i;
        int changed;
        u8 reg;

        guard(mutex)(&chip->mutex);
        reg = data->ak4396_regs[0][AK4396_CONTROL_2];
        if (value->value.enumerated.item[0])
                reg |= AK4396_SLOW;
        else
                reg &= ~AK4396_SLOW;
        changed = reg != data->ak4396_regs[0][AK4396_CONTROL_2];
        if (changed) {
                for (i = 0; i < data->dacs; ++i)
                        ak4396_write(chip, i, AK4396_CONTROL_2, reg);
        }
        return changed;
}

static const struct snd_kcontrol_new rolloff_control = {
        .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
        .name = "DAC Filter Playback Enum",
        .info = rolloff_info,
        .get = rolloff_get,
        .put = rolloff_put,
};

static int hpf_info(struct snd_kcontrol *ctl, struct snd_ctl_elem_info *info)
{
        static const char *const names[2] = {
                "None", "High-pass Filter"
        };

        return snd_ctl_enum_info(info, 1, 2, names);
}

static int hpf_get(struct snd_kcontrol *ctl, struct snd_ctl_elem_value *value)
{
        struct oxygen *chip = ctl->private_data;
        struct generic_data *data = chip->model_data;

        value->value.enumerated.item[0] =
                (data->wm8785_regs[WM8785_R2] & WM8785_HPFR) != 0;
        return 0;
}

static int hpf_put(struct snd_kcontrol *ctl, struct snd_ctl_elem_value *value)
{
        struct oxygen *chip = ctl->private_data;
        struct generic_data *data = chip->model_data;
        unsigned int reg;
        int changed;

        guard(mutex)(&chip->mutex);
        reg = data->wm8785_regs[WM8785_R2] & ~(WM8785_HPFR | WM8785_HPFL);
        if (value->value.enumerated.item[0])
                reg |= WM8785_HPFR | WM8785_HPFL;
        changed = reg != data->wm8785_regs[WM8785_R2];
        if (changed)
                wm8785_write(chip, WM8785_R2, reg);
        return changed;
}

static const struct snd_kcontrol_new hpf_control = {
        .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
        .name = "ADC Filter Capture Enum",
        .info = hpf_info,
        .get = hpf_get,
        .put = hpf_put,
};

static int meridian_dig_source_info(struct snd_kcontrol *ctl,
                                    struct snd_ctl_elem_info *info)
{
        static const char *const names[2] = { "On-board", "Extension" };

        return snd_ctl_enum_info(info, 1, 2, names);
}

static int claro_dig_source_info(struct snd_kcontrol *ctl,
                                 struct snd_ctl_elem_info *info)
{
        static const char *const names[2] = { "Optical", "Coaxial" };

        return snd_ctl_enum_info(info, 1, 2, names);
}

static int meridian_dig_source_get(struct snd_kcontrol *ctl,
                                   struct snd_ctl_elem_value *value)
{
        struct oxygen *chip = ctl->private_data;

        value->value.enumerated.item[0] =
                !!(oxygen_read16(chip, OXYGEN_GPIO_DATA) &
                   GPIO_MERIDIAN_DIG_EXT);
        return 0;
}

static int claro_dig_source_get(struct snd_kcontrol *ctl,
                                struct snd_ctl_elem_value *value)
{
        struct oxygen *chip = ctl->private_data;

        value->value.enumerated.item[0] =
                !!(oxygen_read16(chip, OXYGEN_GPIO_DATA) &
                   GPIO_CLARO_DIG_COAX);
        return 0;
}

static int meridian_dig_source_put(struct snd_kcontrol *ctl,
                                   struct snd_ctl_elem_value *value)
{
        struct oxygen *chip = ctl->private_data;
        u16 old_reg, new_reg;
        int changed;

        guard(mutex)(&chip->mutex);
        old_reg = oxygen_read16(chip, OXYGEN_GPIO_DATA);
        new_reg = old_reg & ~GPIO_MERIDIAN_DIG_MASK;
        if (value->value.enumerated.item[0] == 0)
                new_reg |= GPIO_MERIDIAN_DIG_BOARD;
        else
                new_reg |= GPIO_MERIDIAN_DIG_EXT;
        changed = new_reg != old_reg;
        if (changed)
                oxygen_write16(chip, OXYGEN_GPIO_DATA, new_reg);
        return changed;
}

static int claro_dig_source_put(struct snd_kcontrol *ctl,
                                struct snd_ctl_elem_value *value)
{
        struct oxygen *chip = ctl->private_data;
        u16 old_reg, new_reg;
        int changed;

        guard(mutex)(&chip->mutex);
        old_reg = oxygen_read16(chip, OXYGEN_GPIO_DATA);
        new_reg = old_reg & ~GPIO_CLARO_DIG_COAX;
        if (value->value.enumerated.item[0])
                new_reg |= GPIO_CLARO_DIG_COAX;
        changed = new_reg != old_reg;
        if (changed)
                oxygen_write16(chip, OXYGEN_GPIO_DATA, new_reg);
        return changed;
}

static const struct snd_kcontrol_new meridian_dig_source_control = {
        .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
        .name = "IEC958 Source Capture Enum",
        .info = meridian_dig_source_info,
        .get = meridian_dig_source_get,
        .put = meridian_dig_source_put,
};

static const struct snd_kcontrol_new claro_dig_source_control = {
        .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
        .name = "IEC958 Source Capture Enum",
        .info = claro_dig_source_info,
        .get = claro_dig_source_get,
        .put = claro_dig_source_put,
};

static int generic_mixer_init(struct oxygen *chip)
{
        return snd_ctl_add(chip->card, snd_ctl_new1(&rolloff_control, chip));
}

static int generic_wm8785_mixer_init(struct oxygen *chip)
{
        int err;

        err = generic_mixer_init(chip);
        if (err < 0)
                return err;
        err = snd_ctl_add(chip->card, snd_ctl_new1(&hpf_control, chip));
        if (err < 0)
                return err;
        return 0;
}

static int meridian_mixer_init(struct oxygen *chip)
{
        int err;

        err = generic_mixer_init(chip);
        if (err < 0)
                return err;
        err = snd_ctl_add(chip->card,
                          snd_ctl_new1(&meridian_dig_source_control, chip));
        if (err < 0)
                return err;
        return 0;
}

static int claro_mixer_init(struct oxygen *chip)
{
        int err;

        err = generic_wm8785_mixer_init(chip);
        if (err < 0)
                return err;
        err = snd_ctl_add(chip->card,
                          snd_ctl_new1(&claro_dig_source_control, chip));
        if (err < 0)
                return err;
        return 0;
}

static int claro_halo_mixer_init(struct oxygen *chip)
{
        int err;

        err = generic_mixer_init(chip);
        if (err < 0)
                return err;
        err = snd_ctl_add(chip->card,
                          snd_ctl_new1(&claro_dig_source_control, chip));
        if (err < 0)
                return err;
        return 0;
}

static void dump_ak4396_registers(struct oxygen *chip,
                                  struct snd_info_buffer *buffer)
{
        struct generic_data *data = chip->model_data;
        unsigned int dac, i;

        for (dac = 0; dac < data->dacs; ++dac) {
                snd_iprintf(buffer, "\nAK4396 %u:", dac + 1);
                for (i = 0; i < 5; ++i)
                        snd_iprintf(buffer, " %02x", data->ak4396_regs[dac][i]);
        }
        snd_iprintf(buffer, "\n");
}

static void dump_wm8785_registers(struct oxygen *chip,
                                  struct snd_info_buffer *buffer)
{
        struct generic_data *data = chip->model_data;
        unsigned int i;

        snd_iprintf(buffer, "\nWM8785:");
        for (i = 0; i < 3; ++i)
                snd_iprintf(buffer, " %03x", data->wm8785_regs[i]);
        snd_iprintf(buffer, "\n");
}

static void dump_oxygen_registers(struct oxygen *chip,
                                  struct snd_info_buffer *buffer)
{
        dump_ak4396_registers(chip, buffer);
        dump_wm8785_registers(chip, buffer);
}

static const DECLARE_TLV_DB_LINEAR(ak4396_db_scale, TLV_DB_GAIN_MUTE, 0);

static const struct oxygen_model model_generic = {
        .shortname = "C-Media CMI8788",
        .longname = "C-Media Oxygen HD Audio",
        .chip = "CMI8788",
        .init = generic_init,
        .mixer_init = generic_wm8785_mixer_init,
        .cleanup = generic_cleanup,
        .resume = generic_resume,
        .set_dac_params = set_ak4396_params,
        .set_adc_params = set_wm8785_params,
        .update_dac_volume = update_ak4396_volume,
        .update_dac_mute = update_ak4396_mute,
        .dump_registers = dump_oxygen_registers,
        .dac_tlv = ak4396_db_scale,
        .model_data_size = sizeof(struct generic_data),
        .device_config = PLAYBACK_0_TO_I2S |
                         PLAYBACK_1_TO_SPDIF |
                         PLAYBACK_2_TO_AC97_1 |
                         CAPTURE_0_FROM_I2S_1 |
                         CAPTURE_1_FROM_SPDIF |
                         CAPTURE_2_FROM_AC97_1 |
                         AC97_CD_INPUT,
        .dac_channels_pcm = 8,
        .dac_channels_mixer = 8,
        .dac_volume_min = 0,
        .dac_volume_max = 255,
        .function_flags = OXYGEN_FUNCTION_SPI |
                          OXYGEN_FUNCTION_ENABLE_SPI_4_5,
        .dac_mclks = OXYGEN_MCLKS(256, 128, 128),
        .adc_mclks = OXYGEN_MCLKS(256, 256, 128),
        .dac_i2s_format = OXYGEN_I2S_FORMAT_LJUST,
        .adc_i2s_format = OXYGEN_I2S_FORMAT_LJUST,
};

static int get_oxygen_model(struct oxygen *chip,
                            const struct pci_device_id *id)
{
        static const char *const names[] = {
                [MODEL_MERIDIAN]        = "AuzenTech X-Meridian",
                [MODEL_MERIDIAN_2G]     = "AuzenTech X-Meridian 2G",
                [MODEL_CLARO]           = "HT-Omega Claro",
                [MODEL_CLARO_HALO]      = "HT-Omega Claro halo",
                [MODEL_FANTASIA]        = "TempoTec HiFier Fantasia",
                [MODEL_SERENADE]        = "TempoTec HiFier Serenade",
                [MODEL_HG2PCI]          = "CMI8787-HG2PCI",
                [MODEL_XONAR_DG]        = "Xonar DG",
                [MODEL_XONAR_DGX]       = "Xonar DGX",
        };

        chip->model = model_generic;
        switch (id->driver_data) {
        case MODEL_MERIDIAN:
        case MODEL_MERIDIAN_2G:
                chip->model.init = meridian_init;
                chip->model.mixer_init = meridian_mixer_init;
                chip->model.resume = meridian_resume;
                chip->model.set_adc_params = set_ak5385_params;
                chip->model.dump_registers = dump_ak4396_registers;
                chip->model.device_config = PLAYBACK_0_TO_I2S |
                                            PLAYBACK_1_TO_SPDIF |
                                            CAPTURE_0_FROM_I2S_2 |
                                            CAPTURE_1_FROM_SPDIF;
                if (id->driver_data == MODEL_MERIDIAN)
                        chip->model.device_config |= AC97_CD_INPUT;
                break;
        case MODEL_CLARO:
                chip->model.init = claro_init;
                chip->model.mixer_init = claro_mixer_init;
                chip->model.cleanup = claro_cleanup;
                chip->model.suspend = claro_suspend;
                chip->model.resume = claro_resume;
                break;
        case MODEL_CLARO_HALO:
                chip->model.init = claro_halo_init;
                chip->model.mixer_init = claro_halo_mixer_init;
                chip->model.cleanup = claro_cleanup;
                chip->model.suspend = claro_suspend;
                chip->model.resume = claro_resume;
                chip->model.set_adc_params = set_ak5385_params;
                chip->model.dump_registers = dump_ak4396_registers;
                chip->model.device_config = PLAYBACK_0_TO_I2S |
                                            PLAYBACK_1_TO_SPDIF |
                                            CAPTURE_0_FROM_I2S_2 |
                                            CAPTURE_1_FROM_SPDIF;
                break;
        case MODEL_FANTASIA:
        case MODEL_SERENADE:
        case MODEL_2CH_OUTPUT:
        case MODEL_HG2PCI:
                chip->model.shortname = "C-Media CMI8787";
                chip->model.chip = "CMI8787";
                if (id->driver_data == MODEL_FANTASIA)
                        chip->model.init = fantasia_init;
                else
                        chip->model.init = stereo_output_init;
                chip->model.resume = stereo_resume;
                chip->model.mixer_init = generic_mixer_init;
                chip->model.set_adc_params = set_no_params;
                chip->model.dump_registers = dump_ak4396_registers;
                chip->model.device_config = PLAYBACK_0_TO_I2S |
                                            PLAYBACK_1_TO_SPDIF;
                if (id->driver_data == MODEL_FANTASIA) {
                        chip->model.device_config |= CAPTURE_0_FROM_I2S_1;
                        chip->model.adc_mclks = OXYGEN_MCLKS(256, 128, 128);
                }
                chip->model.dac_channels_pcm = 2;
                chip->model.dac_channels_mixer = 2;
                break;
        case MODEL_XONAR_DG:
        case MODEL_XONAR_DGX:
                chip->model = model_xonar_dg;
                break;
        }
        if (id->driver_data == MODEL_MERIDIAN ||
            id->driver_data == MODEL_MERIDIAN_2G ||
            id->driver_data == MODEL_CLARO_HALO) {
                chip->model.misc_flags = OXYGEN_MISC_MIDI;
                chip->model.device_config |= MIDI_OUTPUT | MIDI_INPUT;
        }
        if (id->driver_data < ARRAY_SIZE(names) && names[id->driver_data])
                chip->model.shortname = names[id->driver_data];
        return 0;
}

static int generic_oxygen_probe(struct pci_dev *pci,
                                const struct pci_device_id *pci_id)
{
        static int dev;
        int err;

        if (dev >= SNDRV_CARDS)
                return -ENODEV;
        if (!enable[dev]) {
                ++dev;
                return -ENOENT;
        }
        err = oxygen_pci_probe(pci, index[dev], id[dev], THIS_MODULE,
                               oxygen_ids, get_oxygen_model);
        if (err >= 0)
                ++dev;
        return err;
}

static struct pci_driver oxygen_driver = {
        .name = KBUILD_MODNAME,
        .id_table = oxygen_ids,
        .probe = generic_oxygen_probe,
        .driver = {
                .pm = pm_sleep_ptr(&oxygen_pci_pm),
        },
};

module_pci_driver(oxygen_driver);