/*
 * Universal Interface for Intel High Definition Audio Codec
 *
 * HD audio interface patch for C-Media CMI9880
 *
 * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
 *
 *
 *  This driver 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 driver 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 */

#include <linux/init.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/pci.h>
#include <sound/core.h>
#include "hda_codec.h"
#include "hda_local.h"
#define NUM_PINS        11


/* board config type */
enum {
        CMI_MINIMAL,    /* back 3-jack */
        CMI_MIN_FP,     /* back 3-jack + front-panel 2-jack */
        CMI_FULL,       /* back 6-jack + front-panel 2-jack */
        CMI_FULL_DIG,   /* back 6-jack + front-panel 2-jack + digital I/O */
        CMI_ALLOUT,     /* back 5-jack + front-panel 2-jack + digital out */
        CMI_AUTO,       /* let driver guess it */
        CMI_MODELS
};

struct cmi_spec {
        int board_config;
        unsigned int no_line_in: 1;     /* no line-in (5-jack) */
        unsigned int front_panel: 1;    /* has front-panel 2-jack */

        /* playback */
        struct hda_multi_out multiout;
        hda_nid_t dac_nids[AUTO_CFG_MAX_OUTS];  /* NID for each DAC */
        int num_dacs;

        /* capture */
        hda_nid_t *adc_nids;
        hda_nid_t dig_in_nid;

        /* capture source */
        const struct hda_input_mux *input_mux;
        unsigned int cur_mux[2];

        /* channel mode */
        int num_channel_modes;
        const struct hda_channel_mode *channel_modes;

        struct hda_pcm pcm_rec[2];      /* PCM information */

        /* pin deafault configuration */
        hda_nid_t pin_nid[NUM_PINS];
        unsigned int def_conf[NUM_PINS];
        unsigned int pin_def_confs;

        /* multichannel pins */
        struct hda_verb multi_init[9];  /* 2 verbs for each pin + terminator */
};

/*
 * input MUX
 */
static int cmi_mux_enum_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
        struct cmi_spec *spec = codec->spec;
        return snd_hda_input_mux_info(spec->input_mux, uinfo);
}

static int cmi_mux_enum_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
        struct cmi_spec *spec = codec->spec;
        unsigned int adc_idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);

        ucontrol->value.enumerated.item[0] = spec->cur_mux[adc_idx];
        return 0;
}

static int cmi_mux_enum_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
        struct cmi_spec *spec = codec->spec;
        unsigned int adc_idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);

        return snd_hda_input_mux_put(codec, spec->input_mux, ucontrol,
                                     spec->adc_nids[adc_idx], &spec->cur_mux[adc_idx]);
}

/*
 * shared line-in, mic for surrounds
 */

/* 3-stack / 2 channel */
static struct hda_verb cmi9880_ch2_init[] = {
        /* set line-in PIN for input */
        { 0x0c, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_IN },
        /* set mic PIN for input, also enable vref */
        { 0x0d, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_VREF80 },
        /* route front PCM (DAC1) to HP */
        { 0x0f, AC_VERB_SET_CONNECT_SEL, 0x00 },
        {}
};

/* 3-stack / 6 channel */
static struct hda_verb cmi9880_ch6_init[] = {
        /* set line-in PIN for output */
        { 0x0c, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT },
        /* set mic PIN for output */
        { 0x0d, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT },
        /* route front PCM (DAC1) to HP */
        { 0x0f, AC_VERB_SET_CONNECT_SEL, 0x00 },
        {}
};

/* 3-stack+front / 8 channel */
static struct hda_verb cmi9880_ch8_init[] = {
        /* set line-in PIN for output */
        { 0x0c, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT },
        /* set mic PIN for output */
        { 0x0d, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT },
        /* route rear-surround PCM (DAC4) to HP */
        { 0x0f, AC_VERB_SET_CONNECT_SEL, 0x03 },
        {}
};

static struct hda_channel_mode cmi9880_channel_modes[3] = {
        { 2, cmi9880_ch2_init },
        { 6, cmi9880_ch6_init },
        { 8, cmi9880_ch8_init },
};

static int cmi_ch_mode_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
        struct cmi_spec *spec = codec->spec;
        return snd_hda_ch_mode_info(codec, uinfo, spec->channel_modes,
                                    spec->num_channel_modes);
}

static int cmi_ch_mode_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
        struct cmi_spec *spec = codec->spec;
        return snd_hda_ch_mode_get(codec, ucontrol, spec->channel_modes,
                                   spec->num_channel_modes, spec->multiout.max_channels);
}

static int cmi_ch_mode_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
        struct cmi_spec *spec = codec->spec;
        return snd_hda_ch_mode_put(codec, ucontrol, spec->channel_modes,
                                   spec->num_channel_modes, &spec->multiout.max_channels);
}

/*
 */
static struct snd_kcontrol_new cmi9880_basic_mixer[] = {
        /* CMI9880 has no playback volumes! */
        HDA_CODEC_MUTE("PCM Playback Switch", 0x03, 0x0, HDA_OUTPUT), /* front */
        HDA_CODEC_MUTE("Surround Playback Switch", 0x04, 0x0, HDA_OUTPUT),
        HDA_CODEC_MUTE_MONO("Center Playback Switch", 0x05, 1, 0x0, HDA_OUTPUT),
        HDA_CODEC_MUTE_MONO("LFE Playback Switch", 0x05, 2, 0x0, HDA_OUTPUT),
        HDA_CODEC_MUTE("Side Playback Switch", 0x06, 0x0, HDA_OUTPUT),
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
                /* The multiple "Capture Source" controls confuse alsamixer
                 * So call somewhat different..
                 */
                /* .name = "Capture Source", */
                .name = "Input Source",
                .count = 2,
                .info = cmi_mux_enum_info,
                .get = cmi_mux_enum_get,
                .put = cmi_mux_enum_put,
        },
        HDA_CODEC_VOLUME("Capture Volume", 0x08, 0, HDA_INPUT),
        HDA_CODEC_VOLUME_IDX("Capture Volume", 1, 0x09, 0, HDA_INPUT),
        HDA_CODEC_MUTE("Capture Switch", 0x08, 0, HDA_INPUT),
        HDA_CODEC_MUTE_IDX("Capture Switch", 1, 0x09, 0, HDA_INPUT),
        HDA_CODEC_VOLUME("PC Speaker Playback Volume", 0x23, 0, HDA_OUTPUT),
        HDA_CODEC_MUTE("PC Speaker Playback Switch", 0x23, 0, HDA_OUTPUT),
        { } /* end */
};

/*
 * shared I/O pins
 */
static struct snd_kcontrol_new cmi9880_ch_mode_mixer[] = {
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
                .name = "Channel Mode",
                .info = cmi_ch_mode_info,
                .get = cmi_ch_mode_get,
                .put = cmi_ch_mode_put,
        },
        { } /* end */
};

/* AUD-in selections:
 * 0x0b 0x0c 0x0d 0x0e 0x0f 0x10 0x11 0x1f 0x20
 */
static struct hda_input_mux cmi9880_basic_mux = {
        .num_items = 4,
        .items = {
                { "Front Mic", 0x5 },
                { "Rear Mic", 0x2 },
                { "Line", 0x1 },
                { "CD", 0x7 },
        }
};

static struct hda_input_mux cmi9880_no_line_mux = {
        .num_items = 3,
        .items = {
                { "Front Mic", 0x5 },
                { "Rear Mic", 0x2 },
                { "CD", 0x7 },
        }
};

/* front, rear, clfe, rear_surr */
static hda_nid_t cmi9880_dac_nids[4] = {
        0x03, 0x04, 0x05, 0x06
};
/* ADC0, ADC1 */
static hda_nid_t cmi9880_adc_nids[2] = {
        0x08, 0x09
};

#define CMI_DIG_OUT_NID 0x07
#define CMI_DIG_IN_NID  0x0a

/*
 */
static struct hda_verb cmi9880_basic_init[] = {
        /* port-D for line out (rear panel) */
        { 0x0b, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_HP },
        /* port-E for HP out (front panel) */
        { 0x0f, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_HP },
        /* route front PCM to HP */
        { 0x0f, AC_VERB_SET_CONNECT_SEL, 0x00 },
        /* port-A for surround (rear panel) */
        { 0x0e, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_HP },
        /* port-G for CLFE (rear panel) */
        { 0x1f, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_HP },
        { 0x1f, AC_VERB_SET_CONNECT_SEL, 0x02 },
        /* port-H for side (rear panel) */
        { 0x20, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_HP },
        { 0x20, AC_VERB_SET_CONNECT_SEL, 0x01 },
        /* port-C for line-in (rear panel) */
        { 0x0c, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_IN },
        /* port-B for mic-in (rear panel) with vref */
        { 0x0d, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_VREF80 },
        /* port-F for mic-in (front panel) with vref */
        { 0x10, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_VREF80 },
        /* CD-in */
        { 0x11, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_IN },
        /* route front mic to ADC1/2 */
        { 0x08, AC_VERB_SET_CONNECT_SEL, 0x05 },
        { 0x09, AC_VERB_SET_CONNECT_SEL, 0x05 },
        {} /* terminator */
};

static struct hda_verb cmi9880_allout_init[] = {
        /* port-D for line out (rear panel) */
        { 0x0b, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_HP },
        /* port-E for HP out (front panel) */
        { 0x0f, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_HP },
        /* route front PCM to HP */
        { 0x0f, AC_VERB_SET_CONNECT_SEL, 0x00 },
        /* port-A for side (rear panel) */
        { 0x0e, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_HP },
        /* port-G for CLFE (rear panel) */
        { 0x1f, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_HP },
        { 0x1f, AC_VERB_SET_CONNECT_SEL, 0x02 },
        /* port-H for side (rear panel) */
        { 0x20, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_HP },
        { 0x20, AC_VERB_SET_CONNECT_SEL, 0x01 },
        /* port-C for surround (rear panel) */
        { 0x0c, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_HP },
        /* port-B for mic-in (rear panel) with vref */
        { 0x0d, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_VREF80 },
        /* port-F for mic-in (front panel) with vref */
        { 0x10, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_VREF80 },
        /* CD-in */
        { 0x11, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_IN },
        /* route front mic to ADC1/2 */
        { 0x08, AC_VERB_SET_CONNECT_SEL, 0x05 },
        { 0x09, AC_VERB_SET_CONNECT_SEL, 0x05 },
        {} /* terminator */
};

/*
 */
static int cmi9880_build_controls(struct hda_codec *codec)
{
        struct cmi_spec *spec = codec->spec;
        int err;

        err = snd_hda_add_new_ctls(codec, cmi9880_basic_mixer);
        if (err < 0)
                return err;
        if (spec->channel_modes) {
                err = snd_hda_add_new_ctls(codec, cmi9880_ch_mode_mixer);
                if (err < 0)
                        return err;
        }
        if (spec->multiout.dig_out_nid) {
                err = snd_hda_create_spdif_out_ctls(codec, spec->multiout.dig_out_nid);
                if (err < 0)
                        return err;
                err = snd_hda_create_spdif_share_sw(codec,
                                                    &spec->multiout);
                if (err < 0)
                        return err;
                spec->multiout.share_spdif = 1;
        }
        if (spec->dig_in_nid) {
                err = snd_hda_create_spdif_in_ctls(codec, spec->dig_in_nid);
                if (err < 0)
                        return err;
        }
        return 0;
}

/* fill in the multi_dac_nids table, which will decide
   which audio widget to use for each channel */
static int cmi9880_fill_multi_dac_nids(struct hda_codec *codec, const struct auto_pin_cfg *cfg)
{
        struct cmi_spec *spec = codec->spec;
        hda_nid_t nid;
        int assigned[4];
        int i, j;

        /* clear the table, only one c-media dac assumed here */
        memset(spec->dac_nids, 0, sizeof(spec->dac_nids));
        memset(assigned, 0, sizeof(assigned));
        /* check the pins we found */
        for (i = 0; i < cfg->line_outs; i++) {
                nid = cfg->line_out_pins[i];
                /* nid 0x0b~0x0e is hardwired to audio widget 0x3~0x6 */
                if (nid >= 0x0b && nid <= 0x0e) {
                        spec->dac_nids[i] = (nid - 0x0b) + 0x03;
                        assigned[nid - 0x0b] = 1;
                }
        }
        /* left pin can be connect to any audio widget */
        for (i = 0; i < cfg->line_outs; i++) {
                nid = cfg->line_out_pins[i];
                if (nid <= 0x0e)
                        continue;
                /* search for an empty channel */
                for (j = 0; j < cfg->line_outs; j++) {
                        if (! assigned[j]) {
                                spec->dac_nids[i] = j + 0x03;
                                assigned[j] = 1;
                                break;
                        }
                }
        }
        spec->num_dacs = cfg->line_outs;
        return 0;
}

/* create multi_init table, which is used for multichannel initialization */
static int cmi9880_fill_multi_init(struct hda_codec *codec, const struct auto_pin_cfg *cfg)
{
        struct cmi_spec *spec = codec->spec;
        hda_nid_t nid;
        int i, j, k, len;

        /* clear the table, only one c-media dac assumed here */
        memset(spec->multi_init, 0, sizeof(spec->multi_init));
        for (j = 0, i = 0; i < cfg->line_outs; i++) {
                hda_nid_t conn[4];
                nid = cfg->line_out_pins[i];
                /* set as output */
                spec->multi_init[j].nid = nid;
                spec->multi_init[j].verb = AC_VERB_SET_PIN_WIDGET_CONTROL;
                spec->multi_init[j].param = PIN_OUT;
                j++;
                if (nid > 0x0e) {
                        /* set connection */
                        spec->multi_init[j].nid = nid;
                        spec->multi_init[j].verb = AC_VERB_SET_CONNECT_SEL;
                        spec->multi_init[j].param = 0;
                        /* find the index in connect list */
                        len = snd_hda_get_connections(codec, nid, conn, 4);
                        for (k = 0; k < len; k++)
                                if (conn[k] == spec->dac_nids[i]) {
                                        spec->multi_init[j].param = k;
                                        break;
                                }
                        j++;
                }
        }
        return 0;
}

static int cmi9880_init(struct hda_codec *codec)
{
        struct cmi_spec *spec = codec->spec;
        if (spec->board_config == CMI_ALLOUT)
                snd_hda_sequence_write(codec, cmi9880_allout_init);
        else
                snd_hda_sequence_write(codec, cmi9880_basic_init);
        if (spec->board_config == CMI_AUTO)
                snd_hda_sequence_write(codec, spec->multi_init);
        return 0;
}

/*
 * Analog playback callbacks
 */
static int cmi9880_playback_pcm_open(struct hda_pcm_stream *hinfo,
                                     struct hda_codec *codec,
                                     struct snd_pcm_substream *substream)
{
        struct cmi_spec *spec = codec->spec;
        return snd_hda_multi_out_analog_open(codec, &spec->multiout, substream,
                                             hinfo);
}

static int cmi9880_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
                                        struct hda_codec *codec,
                                        unsigned int stream_tag,
                                        unsigned int format,
                                        struct snd_pcm_substream *substream)
{
        struct cmi_spec *spec = codec->spec;
        return snd_hda_multi_out_analog_prepare(codec, &spec->multiout, stream_tag,
                                                format, substream);
}

static int cmi9880_playback_pcm_cleanup(struct hda_pcm_stream *hinfo,
                                       struct hda_codec *codec,
                                       struct snd_pcm_substream *substream)
{
        struct cmi_spec *spec = codec->spec;
        return snd_hda_multi_out_analog_cleanup(codec, &spec->multiout);
}

/*
 * Digital out
 */
static int cmi9880_dig_playback_pcm_open(struct hda_pcm_stream *hinfo,
                                         struct hda_codec *codec,
                                         struct snd_pcm_substream *substream)
{
        struct cmi_spec *spec = codec->spec;
        return snd_hda_multi_out_dig_open(codec, &spec->multiout);
}

static int cmi9880_dig_playback_pcm_close(struct hda_pcm_stream *hinfo,
                                          struct hda_codec *codec,
                                          struct snd_pcm_substream *substream)
{
        struct cmi_spec *spec = codec->spec;
        return snd_hda_multi_out_dig_close(codec, &spec->multiout);
}

static int cmi9880_dig_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
                                            struct hda_codec *codec,
                                            unsigned int stream_tag,
                                            unsigned int format,
                                            struct snd_pcm_substream *substream)
{
        struct cmi_spec *spec = codec->spec;
        return snd_hda_multi_out_dig_prepare(codec, &spec->multiout, stream_tag,
                                             format, substream);
}

/*
 * Analog capture
 */
static int cmi9880_capture_pcm_prepare(struct hda_pcm_stream *hinfo,
                                      struct hda_codec *codec,
                                      unsigned int stream_tag,
                                      unsigned int format,
                                      struct snd_pcm_substream *substream)
{
        struct cmi_spec *spec = codec->spec;

        snd_hda_codec_setup_stream(codec, spec->adc_nids[substream->number],
                                   stream_tag, 0, format);
        return 0;
}

static int cmi9880_capture_pcm_cleanup(struct hda_pcm_stream *hinfo,
                                      struct hda_codec *codec,
                                      struct snd_pcm_substream *substream)
{
        struct cmi_spec *spec = codec->spec;

        snd_hda_codec_cleanup_stream(codec, spec->adc_nids[substream->number]);
        return 0;
}


/*
 */
static struct hda_pcm_stream cmi9880_pcm_analog_playback = {
        .substreams = 1,
        .channels_min = 2,
        .channels_max = 8,
        .nid = 0x03, /* NID to query formats and rates */
        .ops = {
                .open = cmi9880_playback_pcm_open,
                .prepare = cmi9880_playback_pcm_prepare,
                .cleanup = cmi9880_playback_pcm_cleanup
        },
};

static struct hda_pcm_stream cmi9880_pcm_analog_capture = {
        .substreams = 2,
        .channels_min = 2,
        .channels_max = 2,
        .nid = 0x08, /* NID to query formats and rates */
        .ops = {
                .prepare = cmi9880_capture_pcm_prepare,
                .cleanup = cmi9880_capture_pcm_cleanup
        },
};

static struct hda_pcm_stream cmi9880_pcm_digital_playback = {
        .substreams = 1,
        .channels_min = 2,
        .channels_max = 2,
        /* NID is set in cmi9880_build_pcms */
        .ops = {
                .open = cmi9880_dig_playback_pcm_open,
                .close = cmi9880_dig_playback_pcm_close,
                .prepare = cmi9880_dig_playback_pcm_prepare
        },
};

static struct hda_pcm_stream cmi9880_pcm_digital_capture = {
        .substreams = 1,
        .channels_min = 2,
        .channels_max = 2,
        /* NID is set in cmi9880_build_pcms */
};

static int cmi9880_build_pcms(struct hda_codec *codec)
{
        struct cmi_spec *spec = codec->spec;
        struct hda_pcm *info = spec->pcm_rec;

        codec->num_pcms = 1;
        codec->pcm_info = info;

        info->name = "CMI9880";
        info->stream[SNDRV_PCM_STREAM_PLAYBACK] = cmi9880_pcm_analog_playback;
        info->stream[SNDRV_PCM_STREAM_CAPTURE] = cmi9880_pcm_analog_capture;

        if (spec->multiout.dig_out_nid || spec->dig_in_nid) {
                codec->num_pcms++;
                info++;
                info->name = "CMI9880 Digital";
                info->pcm_type = HDA_PCM_TYPE_SPDIF;
                if (spec->multiout.dig_out_nid) {
                        info->stream[SNDRV_PCM_STREAM_PLAYBACK] = cmi9880_pcm_digital_playback;
                        info->stream[SNDRV_PCM_STREAM_PLAYBACK].nid = spec->multiout.dig_out_nid;
                }
                if (spec->dig_in_nid) {
                        info->stream[SNDRV_PCM_STREAM_CAPTURE] = cmi9880_pcm_digital_capture;
                        info->stream[SNDRV_PCM_STREAM_CAPTURE].nid = spec->dig_in_nid;
                }
        }

        return 0;
}

static void cmi9880_free(struct hda_codec *codec)
{
        kfree(codec->spec);
}

/*
 */

static const char *cmi9880_models[CMI_MODELS] = {
        [CMI_MINIMAL]   = "minimal",
        [CMI_MIN_FP]    = "min_fp",
        [CMI_FULL]      = "full",
        [CMI_FULL_DIG]  = "full_dig",
        [CMI_ALLOUT]    = "allout",
        [CMI_AUTO]      = "auto",
};

static struct snd_pci_quirk cmi9880_cfg_tbl[] = {
        SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", CMI_FULL_DIG),
        SND_PCI_QUIRK(0x1854, 0x002b, "LG LS75", CMI_MINIMAL),
        SND_PCI_QUIRK(0x1854, 0x0032, "LG", CMI_FULL_DIG),
        {} /* terminator */
};

static struct hda_codec_ops cmi9880_patch_ops = {
        .build_controls = cmi9880_build_controls,
        .build_pcms = cmi9880_build_pcms,
        .init = cmi9880_init,
        .free = cmi9880_free,
};

static int patch_cmi9880(struct hda_codec *codec)
{
        struct cmi_spec *spec;

        spec = kzalloc(sizeof(*spec), GFP_KERNEL);
        if (spec == NULL)
                return -ENOMEM;

        codec->spec = spec;
        spec->board_config = snd_hda_check_board_config(codec, CMI_MODELS,
                                                        cmi9880_models,
                                                        cmi9880_cfg_tbl);
        if (spec->board_config < 0) {
                snd_printdd(KERN_INFO "hda_codec: %s: BIOS auto-probing.\n",
                            codec->chip_name);
                spec->board_config = CMI_AUTO; /* try everything */
        }

        /* copy default DAC NIDs */
        memcpy(spec->dac_nids, cmi9880_dac_nids, sizeof(spec->dac_nids));
        spec->num_dacs = 4;

        switch (spec->board_config) {
        case CMI_MINIMAL:
        case CMI_MIN_FP:
                spec->channel_modes = cmi9880_channel_modes;
                if (spec->board_config == CMI_MINIMAL)
                        spec->num_channel_modes = 2;
                else {
                        spec->front_panel = 1;
                        spec->num_channel_modes = 3;
                }
                spec->multiout.max_channels = cmi9880_channel_modes[0].channels;
                spec->input_mux = &cmi9880_basic_mux;
                break;
        case CMI_FULL:
        case CMI_FULL_DIG:
                spec->front_panel = 1;
                spec->multiout.max_channels = 8;
                spec->input_mux = &cmi9880_basic_mux;
                if (spec->board_config == CMI_FULL_DIG) {
                        spec->multiout.dig_out_nid = CMI_DIG_OUT_NID;
                        spec->dig_in_nid = CMI_DIG_IN_NID;
                }
                break;
        case CMI_ALLOUT:
                spec->front_panel = 1;
                spec->multiout.max_channels = 8;
                spec->no_line_in = 1;
                spec->input_mux = &cmi9880_no_line_mux;
                spec->multiout.dig_out_nid = CMI_DIG_OUT_NID;
                break;
        case CMI_AUTO:
                {
                unsigned int port_e, port_f, port_g, port_h;
                unsigned int port_spdifi, port_spdifo;
                struct auto_pin_cfg cfg;

                /* collect pin default configuration */
                port_e = snd_hda_codec_get_pincfg(codec, 0x0f);
                port_f = snd_hda_codec_get_pincfg(codec, 0x10);
                spec->front_panel = 1;
                if (get_defcfg_connect(port_e) == AC_JACK_PORT_NONE ||
                    get_defcfg_connect(port_f) == AC_JACK_PORT_NONE) {
                        port_g = snd_hda_codec_get_pincfg(codec, 0x1f);
                        port_h = snd_hda_codec_get_pincfg(codec, 0x20);
                        spec->channel_modes = cmi9880_channel_modes;
                        /* no front panel */
                        if (get_defcfg_connect(port_g) == AC_JACK_PORT_NONE ||
                            get_defcfg_connect(port_h) == AC_JACK_PORT_NONE) {
                                /* no optional rear panel */
                                spec->board_config = CMI_MINIMAL;
                                spec->front_panel = 0;
                                spec->num_channel_modes = 2;
                        } else {
                                spec->board_config = CMI_MIN_FP;
                                spec->num_channel_modes = 3;
                        }
                        spec->input_mux = &cmi9880_basic_mux;
                        spec->multiout.max_channels = cmi9880_channel_modes[0].channels;
                } else {
                        spec->input_mux = &cmi9880_basic_mux;
                        port_spdifi = snd_hda_codec_get_pincfg(codec, 0x13);
                        port_spdifo = snd_hda_codec_get_pincfg(codec, 0x12);
                        if (get_defcfg_connect(port_spdifo) != AC_JACK_PORT_NONE)
                                spec->multiout.dig_out_nid = CMI_DIG_OUT_NID;
                        if (get_defcfg_connect(port_spdifi) != AC_JACK_PORT_NONE)
                                spec->dig_in_nid = CMI_DIG_IN_NID;
                        spec->multiout.max_channels = 8;
                }
                snd_hda_parse_pin_def_config(codec, &cfg, NULL);
                if (cfg.line_outs) {
                        spec->multiout.max_channels = cfg.line_outs * 2;
                        cmi9880_fill_multi_dac_nids(codec, &cfg);
                        cmi9880_fill_multi_init(codec, &cfg);
                } else
                        snd_printd("patch_cmedia: cannot detect association in defcfg\n");
                break;
                }
        }

        spec->multiout.num_dacs = spec->num_dacs;
        spec->multiout.dac_nids = spec->dac_nids;

        spec->adc_nids = cmi9880_adc_nids;

        codec->patch_ops = cmi9880_patch_ops;

        return 0;
}

/*
 * patch entries
 */
static struct hda_codec_preset snd_hda_preset_cmedia[] = {
        { .id = 0x13f69880, .name = "CMI9880", .patch = patch_cmi9880 },
        { .id = 0x434d4980, .name = "CMI9880", .patch = patch_cmi9880 },
        {} /* terminator */
};

MODULE_ALIAS("snd-hda-codec-id:13f69880");
MODULE_ALIAS("snd-hda-codec-id:434d4980");

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("C-Media HD-audio codec");

static struct hda_codec_preset_list cmedia_list = {
        .preset = snd_hda_preset_cmedia,
        .owner = THIS_MODULE,
};

static int __init patch_cmedia_init(void)
{
        return snd_hda_add_codec_preset(&cmedia_list);
}

static void __exit patch_cmedia_exit(void)
{
        snd_hda_delete_codec_preset(&cmedia_list);
}

module_init(patch_cmedia_init)
module_exit(patch_cmedia_exit)