[ALSA] ac97 - Fix VIA EPIA sound problem

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / sound / pci / ac97 / ac97_patch.c

/*
 *  Copyright (c) by Jaroslav Kysela <perex@suse.cz>
 *  Universal interface for Audio Codec '97
 *
 *  For more details look to AC '97 component specification revision 2.2
 *  by Intel Corporation (http://developer.intel.com) and to datasheets
 *  for specific codecs.
 *
 *
 *   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., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 *
 */

#include <sound/driver.h>
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/mutex.h>

#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/control.h>
#include <sound/tlv.h>
#include <sound/ac97_codec.h>
#include "ac97_patch.h"
#include "ac97_id.h"
#include "ac97_local.h"

/*
 *  Chip specific initialization
 */

static int patch_build_controls(struct snd_ac97 * ac97, const struct snd_kcontrol_new *controls, int count)
{
        int idx, err;

        for (idx = 0; idx < count; idx++)
                if ((err = snd_ctl_add(ac97->bus->card, snd_ac97_cnew(&controls[idx], ac97))) < 0)
                        return err;
        return 0;
}

/* replace with a new TLV */
static void reset_tlv(struct snd_ac97 *ac97, const char *name,
                      unsigned int *tlv)
{
        struct snd_ctl_elem_id sid;
        struct snd_kcontrol *kctl;
        memset(&sid, 0, sizeof(sid));
        strcpy(sid.name, name);
        sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
        kctl = snd_ctl_find_id(ac97->bus->card, &sid);
        if (kctl && kctl->tlv.p)
                kctl->tlv.p = tlv;
}

/* set to the page, update bits and restore the page */
static int ac97_update_bits_page(struct snd_ac97 *ac97, unsigned short reg, unsigned short mask, unsigned short value, unsigned short page)
{
        unsigned short page_save;
        int ret;

        mutex_lock(&ac97->page_mutex);
        page_save = snd_ac97_read(ac97, AC97_INT_PAGING) & AC97_PAGE_MASK;
        snd_ac97_update_bits(ac97, AC97_INT_PAGING, AC97_PAGE_MASK, page);
        ret = snd_ac97_update_bits(ac97, reg, mask, value);
        snd_ac97_update_bits(ac97, AC97_INT_PAGING, AC97_PAGE_MASK, page_save);
        mutex_unlock(&ac97->page_mutex); /* unlock paging */
        return ret;
}

/*
 * shared line-in/mic controls
 */
static int ac97_enum_text_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo,
                               const char **texts, unsigned int nums)
{
        uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
        uinfo->count = 1;
        uinfo->value.enumerated.items = nums;
        if (uinfo->value.enumerated.item > nums - 1)
                uinfo->value.enumerated.item = nums - 1;
        strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
        return 0;
}

static int ac97_surround_jack_mode_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
        static const char *texts[] = { "Shared", "Independent" };
        return ac97_enum_text_info(kcontrol, uinfo, texts, 2);
}

static int ac97_surround_jack_mode_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);

        ucontrol->value.enumerated.item[0] = ac97->indep_surround;
        return 0;
}

static int ac97_surround_jack_mode_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
        unsigned char indep = !!ucontrol->value.enumerated.item[0];

        if (indep != ac97->indep_surround) {
                ac97->indep_surround = indep;
                if (ac97->build_ops->update_jacks)
                        ac97->build_ops->update_jacks(ac97);
                return 1;
        }
        return 0;
}

static int ac97_channel_mode_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
        static const char *texts[] = { "2ch", "4ch", "6ch" };
        if (kcontrol->private_value)
                return ac97_enum_text_info(kcontrol, uinfo, texts, 2); /* 4ch only */
        return ac97_enum_text_info(kcontrol, uinfo, texts, 3);
}

static int ac97_channel_mode_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);

        ucontrol->value.enumerated.item[0] = ac97->channel_mode;
        return 0;
}

static int ac97_channel_mode_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
        unsigned char mode = ucontrol->value.enumerated.item[0];

        if (mode != ac97->channel_mode) {
                ac97->channel_mode = mode;
                if (ac97->build_ops->update_jacks)
                        ac97->build_ops->update_jacks(ac97);
                return 1;
        }
        return 0;
}

#define AC97_SURROUND_JACK_MODE_CTL \
        { \
                .iface  = SNDRV_CTL_ELEM_IFACE_MIXER, \
                .name   = "Surround Jack Mode", \
                .info = ac97_surround_jack_mode_info, \
                .get = ac97_surround_jack_mode_get, \
                .put = ac97_surround_jack_mode_put, \
        }
#define AC97_CHANNEL_MODE_CTL \
        { \
                .iface  = SNDRV_CTL_ELEM_IFACE_MIXER, \
                .name   = "Channel Mode", \
                .info = ac97_channel_mode_info, \
                .get = ac97_channel_mode_get, \
                .put = ac97_channel_mode_put, \
        }
#define AC97_CHANNEL_MODE_4CH_CTL \
        { \
                .iface  = SNDRV_CTL_ELEM_IFACE_MIXER, \
                .name   = "Channel Mode", \
                .info = ac97_channel_mode_info, \
                .get = ac97_channel_mode_get, \
                .put = ac97_channel_mode_put, \
                .private_value = 1, \
        }

static inline int is_surround_on(struct snd_ac97 *ac97)
{
        return ac97->channel_mode >= 1;
}

static inline int is_clfe_on(struct snd_ac97 *ac97)
{
        return ac97->channel_mode >= 2;
}

static inline int is_shared_linein(struct snd_ac97 *ac97)
{
        return ! ac97->indep_surround && is_surround_on(ac97);
}

static inline int is_shared_micin(struct snd_ac97 *ac97)
{
        return ! ac97->indep_surround && is_clfe_on(ac97);
}


/* The following snd_ac97_ymf753_... items added by David Shust (dshust@shustring.com) */

/* It is possible to indicate to the Yamaha YMF753 the type of speakers being used. */
static int snd_ac97_ymf753_info_speaker(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
        static char *texts[3] = {
                "Standard", "Small", "Smaller"
        };

        uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
        uinfo->count = 1;
        uinfo->value.enumerated.items = 3;
        if (uinfo->value.enumerated.item > 2)
                uinfo->value.enumerated.item = 2;
        strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
        return 0;
}

static int snd_ac97_ymf753_get_speaker(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
        unsigned short val;

        val = ac97->regs[AC97_YMF753_3D_MODE_SEL];
        val = (val >> 10) & 3;
        if (val > 0)    /* 0 = invalid */
                val--;
        ucontrol->value.enumerated.item[0] = val;
        return 0;
}

static int snd_ac97_ymf753_put_speaker(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
        unsigned short val;

        if (ucontrol->value.enumerated.item[0] > 2)
                return -EINVAL;
        val = (ucontrol->value.enumerated.item[0] + 1) << 10;
        return snd_ac97_update(ac97, AC97_YMF753_3D_MODE_SEL, val);
}

static const struct snd_kcontrol_new snd_ac97_ymf753_controls_speaker =
{
        .iface  = SNDRV_CTL_ELEM_IFACE_MIXER,
        .name   = "3D Control - Speaker",
        .info   = snd_ac97_ymf753_info_speaker,
        .get    = snd_ac97_ymf753_get_speaker,
        .put    = snd_ac97_ymf753_put_speaker,
};

/* It is possible to indicate to the Yamaha YMF753 the source to direct to the S/PDIF output. */
static int snd_ac97_ymf753_spdif_source_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
        static char *texts[2] = { "AC-Link", "A/D Converter" };

        uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
        uinfo->count = 1;
        uinfo->value.enumerated.items = 2;
        if (uinfo->value.enumerated.item > 1)
                uinfo->value.enumerated.item = 1;
        strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
        return 0;
}

static int snd_ac97_ymf753_spdif_source_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
        unsigned short val;

        val = ac97->regs[AC97_YMF753_DIT_CTRL2];
        ucontrol->value.enumerated.item[0] = (val >> 1) & 1;
        return 0;
}

static int snd_ac97_ymf753_spdif_source_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
        unsigned short val;

        if (ucontrol->value.enumerated.item[0] > 1)
                return -EINVAL;
        val = ucontrol->value.enumerated.item[0] << 1;
        return snd_ac97_update_bits(ac97, AC97_YMF753_DIT_CTRL2, 0x0002, val);
}

/* The AC'97 spec states that the S/PDIF signal is to be output at pin 48.
   The YMF753 will output the S/PDIF signal to pin 43, 47 (EAPD), or 48.
   By default, no output pin is selected, and the S/PDIF signal is not output.
   There is also a bit to mute S/PDIF output in a vendor-specific register. */
static int snd_ac97_ymf753_spdif_output_pin_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
        static char *texts[3] = { "Disabled", "Pin 43", "Pin 48" };

        uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
        uinfo->count = 1;
        uinfo->value.enumerated.items = 3;
        if (uinfo->value.enumerated.item > 2)
                uinfo->value.enumerated.item = 2;
        strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
        return 0;
}

static int snd_ac97_ymf753_spdif_output_pin_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
        unsigned short val;

        val = ac97->regs[AC97_YMF753_DIT_CTRL2];
        ucontrol->value.enumerated.item[0] = (val & 0x0008) ? 2 : (val & 0x0020) ? 1 : 0;
        return 0;
}

static int snd_ac97_ymf753_spdif_output_pin_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
        unsigned short val;

        if (ucontrol->value.enumerated.item[0] > 2)
                return -EINVAL;
        val = (ucontrol->value.enumerated.item[0] == 2) ? 0x0008 :
              (ucontrol->value.enumerated.item[0] == 1) ? 0x0020 : 0;
        return snd_ac97_update_bits(ac97, AC97_YMF753_DIT_CTRL2, 0x0028, val);
        /* The following can be used to direct S/PDIF output to pin 47 (EAPD).
           snd_ac97_write_cache(ac97, 0x62, snd_ac97_read(ac97, 0x62) | 0x0008); */
}

static const struct snd_kcontrol_new snd_ac97_ymf753_controls_spdif[3] = {
        {
                .iface  = SNDRV_CTL_ELEM_IFACE_MIXER,
                .name   = SNDRV_CTL_NAME_IEC958("",PLAYBACK,NONE) "Source",
                .info   = snd_ac97_ymf753_spdif_source_info,
                .get    = snd_ac97_ymf753_spdif_source_get,
                .put    = snd_ac97_ymf753_spdif_source_put,
        },
        {
                .iface  = SNDRV_CTL_ELEM_IFACE_MIXER,
                .name   = SNDRV_CTL_NAME_IEC958("",PLAYBACK,NONE) "Output Pin",
                .info   = snd_ac97_ymf753_spdif_output_pin_info,
                .get    = snd_ac97_ymf753_spdif_output_pin_get,
                .put    = snd_ac97_ymf753_spdif_output_pin_put,
        },
        AC97_SINGLE(SNDRV_CTL_NAME_IEC958("",NONE,NONE) "Mute", AC97_YMF753_DIT_CTRL2, 2, 1, 1)
};

static int patch_yamaha_ymf753_3d(struct snd_ac97 * ac97)
{
        struct snd_kcontrol *kctl;
        int err;

        if ((err = snd_ctl_add(ac97->bus->card, kctl = snd_ac97_cnew(&snd_ac97_controls_3d[0], ac97))) < 0)
                return err;
        strcpy(kctl->id.name, "3D Control - Wide");
        kctl->private_value = AC97_SINGLE_VALUE(AC97_3D_CONTROL, 9, 7, 0);
        snd_ac97_write_cache(ac97, AC97_3D_CONTROL, 0x0000);
        if ((err = snd_ctl_add(ac97->bus->card, snd_ac97_cnew(&snd_ac97_ymf753_controls_speaker, ac97))) < 0)
                return err;
        snd_ac97_write_cache(ac97, AC97_YMF753_3D_MODE_SEL, 0x0c00);
        return 0;
}

static int patch_yamaha_ymf753_post_spdif(struct snd_ac97 * ac97)
{
        int err;

        if ((err = patch_build_controls(ac97, snd_ac97_ymf753_controls_spdif, ARRAY_SIZE(snd_ac97_ymf753_controls_spdif))) < 0)
                return err;
        return 0;
}

static struct snd_ac97_build_ops patch_yamaha_ymf753_ops = {
        .build_3d       = patch_yamaha_ymf753_3d,
        .build_post_spdif = patch_yamaha_ymf753_post_spdif
};

int patch_yamaha_ymf753(struct snd_ac97 * ac97)
{
        /* Patch for Yamaha YMF753, Copyright (c) by David Shust, dshust@shustring.com.
           This chip has nonstandard and extended behaviour with regard to its S/PDIF output.
           The AC'97 spec states that the S/PDIF signal is to be output at pin 48.
           The YMF753 will ouput the S/PDIF signal to pin 43, 47 (EAPD), or 48.
           By default, no output pin is selected, and the S/PDIF signal is not output.
           There is also a bit to mute S/PDIF output in a vendor-specific register.
        */
        ac97->build_ops = &patch_yamaha_ymf753_ops;
        ac97->caps |= AC97_BC_BASS_TREBLE;
        ac97->caps |= 0x04 << 10; /* Yamaha 3D enhancement */
        return 0;
}

/*
 * May 2, 2003 Liam Girdwood <liam.girdwood@wolfsonmicro.com>
 *  removed broken wolfson00 patch.
 *  added support for WM9705,WM9708,WM9709,WM9710,WM9711,WM9712 and WM9717.
 */

static const struct snd_kcontrol_new wm97xx_snd_ac97_controls[] = {
AC97_DOUBLE("Front Playback Volume", AC97_WM97XX_FMIXER_VOL, 8, 0, 31, 1),
AC97_SINGLE("Front Playback Switch", AC97_WM97XX_FMIXER_VOL, 15, 1, 1),
};

static int patch_wolfson_wm9703_specific(struct snd_ac97 * ac97)
{
        /* This is known to work for the ViewSonic ViewPad 1000
         * Randolph Bentson <bentson@holmsjoen.com>
         * WM9703/9707/9708/9717 
         */
        int err, i;
        
        for (i = 0; i < ARRAY_SIZE(wm97xx_snd_ac97_controls); i++) {
                if ((err = snd_ctl_add(ac97->bus->card, snd_ac97_cnew(&wm97xx_snd_ac97_controls[i], ac97))) < 0)
                        return err;
        }
        snd_ac97_write_cache(ac97,  AC97_WM97XX_FMIXER_VOL, 0x0808);
        return 0;
}

static struct snd_ac97_build_ops patch_wolfson_wm9703_ops = {
        .build_specific = patch_wolfson_wm9703_specific,
};

int patch_wolfson03(struct snd_ac97 * ac97)
{
        ac97->build_ops = &patch_wolfson_wm9703_ops;
        return 0;
}

static const struct snd_kcontrol_new wm9704_snd_ac97_controls[] = {
AC97_DOUBLE("Front Playback Volume", AC97_WM97XX_FMIXER_VOL, 8, 0, 31, 1),
AC97_SINGLE("Front Playback Switch", AC97_WM97XX_FMIXER_VOL, 15, 1, 1),
AC97_DOUBLE("Rear Playback Volume", AC97_WM9704_RMIXER_VOL, 8, 0, 31, 1),
AC97_SINGLE("Rear Playback Switch", AC97_WM9704_RMIXER_VOL, 15, 1, 1),
AC97_DOUBLE("Rear DAC Volume", AC97_WM9704_RPCM_VOL, 8, 0, 31, 1),
AC97_DOUBLE("Surround Volume", AC97_SURROUND_MASTER, 8, 0, 31, 1),
};

static int patch_wolfson_wm9704_specific(struct snd_ac97 * ac97)
{
        int err, i;
        for (i = 0; i < ARRAY_SIZE(wm9704_snd_ac97_controls); i++) {
                if ((err = snd_ctl_add(ac97->bus->card, snd_ac97_cnew(&wm9704_snd_ac97_controls[i], ac97))) < 0)
                        return err;
        }
        /* patch for DVD noise */
        snd_ac97_write_cache(ac97, AC97_WM9704_TEST, 0x0200);
        return 0;
}

static struct snd_ac97_build_ops patch_wolfson_wm9704_ops = {
        .build_specific = patch_wolfson_wm9704_specific,
};

int patch_wolfson04(struct snd_ac97 * ac97)
{
        /* WM9704M/9704Q */
        ac97->build_ops = &patch_wolfson_wm9704_ops;
        return 0;
}

static int patch_wolfson_wm9705_specific(struct snd_ac97 * ac97)
{
        int err, i;
        for (i = 0; i < ARRAY_SIZE(wm97xx_snd_ac97_controls); i++) {
                if ((err = snd_ctl_add(ac97->bus->card, snd_ac97_cnew(&wm97xx_snd_ac97_controls[i], ac97))) < 0)
                        return err;
        }
        snd_ac97_write_cache(ac97,  0x72, 0x0808);
        return 0;
}

static struct snd_ac97_build_ops patch_wolfson_wm9705_ops = {
        .build_specific = patch_wolfson_wm9705_specific,
};

int patch_wolfson05(struct snd_ac97 * ac97)
{
        /* WM9705, WM9710 */
        ac97->build_ops = &patch_wolfson_wm9705_ops;
#ifdef CONFIG_TOUCHSCREEN_WM9705
        /* WM9705 touchscreen uses AUX and VIDEO for touch */
        ac97->flags |=3D AC97_HAS_NO_VIDEO | AC97_HAS_NO_AUX;
#endif
        return 0;
}

static const char* wm9711_alc_select[] = {"None", "Left", "Right", "Stereo"};
static const char* wm9711_alc_mix[] = {"Stereo", "Right", "Left", "None"};
static const char* wm9711_out3_src[] = {"Left", "VREF", "Left + Right", "Mono"};
static const char* wm9711_out3_lrsrc[] = {"Master Mix", "Headphone Mix"};
static const char* wm9711_rec_adc[] = {"Stereo", "Left", "Right", "Mute"};
static const char* wm9711_base[] = {"Linear Control", "Adaptive Boost"};
static const char* wm9711_rec_gain[] = {"+1.5dB Steps", "+0.75dB Steps"};
static const char* wm9711_mic[] = {"Mic 1", "Differential", "Mic 2", "Stereo"};
static const char* wm9711_rec_sel[] = 
        {"Mic 1", "NC", "NC", "Master Mix", "Line", "Headphone Mix", "Phone Mix", "Phone"};
static const char* wm9711_ng_type[] = {"Constant Gain", "Mute"};

static const struct ac97_enum wm9711_enum[] = {
AC97_ENUM_SINGLE(AC97_PCI_SVID, 14, 4, wm9711_alc_select),
AC97_ENUM_SINGLE(AC97_VIDEO, 10, 4, wm9711_alc_mix),
AC97_ENUM_SINGLE(AC97_AUX, 9, 4, wm9711_out3_src),
AC97_ENUM_SINGLE(AC97_AUX, 8, 2, wm9711_out3_lrsrc),
AC97_ENUM_SINGLE(AC97_REC_SEL, 12, 4, wm9711_rec_adc),
AC97_ENUM_SINGLE(AC97_MASTER_TONE, 15, 2, wm9711_base),
AC97_ENUM_DOUBLE(AC97_REC_GAIN, 14, 6, 2, wm9711_rec_gain),
AC97_ENUM_SINGLE(AC97_MIC, 5, 4, wm9711_mic),
AC97_ENUM_DOUBLE(AC97_REC_SEL, 8, 0, 8, wm9711_rec_sel),
AC97_ENUM_SINGLE(AC97_PCI_SVID, 5, 2, wm9711_ng_type),
};

static const struct snd_kcontrol_new wm9711_snd_ac97_controls[] = {
AC97_SINGLE("ALC Target Volume", AC97_CODEC_CLASS_REV, 12, 15, 0),
AC97_SINGLE("ALC Hold Time", AC97_CODEC_CLASS_REV, 8, 15, 0),
AC97_SINGLE("ALC Decay Time", AC97_CODEC_CLASS_REV, 4, 15, 0),
AC97_SINGLE("ALC Attack Time", AC97_CODEC_CLASS_REV, 0, 15, 0),
AC97_ENUM("ALC Function", wm9711_enum[0]),
AC97_SINGLE("ALC Max Volume", AC97_PCI_SVID, 11, 7, 1),
AC97_SINGLE("ALC ZC Timeout", AC97_PCI_SVID, 9, 3, 1),
AC97_SINGLE("ALC ZC Switch", AC97_PCI_SVID, 8, 1, 0),
AC97_SINGLE("ALC NG Switch", AC97_PCI_SVID, 7, 1, 0),
AC97_ENUM("ALC NG Type", wm9711_enum[9]),
AC97_SINGLE("ALC NG Threshold", AC97_PCI_SVID, 0, 31, 1),

AC97_SINGLE("Side Tone Switch", AC97_VIDEO, 15, 1, 1),
AC97_SINGLE("Side Tone Volume", AC97_VIDEO, 12, 7, 1),
AC97_ENUM("ALC Headphone Mux", wm9711_enum[1]),
AC97_SINGLE("ALC Headphone Volume", AC97_VIDEO, 7, 7, 1),

AC97_SINGLE("Out3 Switch", AC97_AUX, 15, 1, 1),
AC97_SINGLE("Out3 ZC Switch", AC97_AUX, 7, 1, 1),
AC97_ENUM("Out3 Mux", wm9711_enum[2]),
AC97_ENUM("Out3 LR Mux", wm9711_enum[3]),
AC97_SINGLE("Out3 Volume", AC97_AUX, 0, 31, 1),

AC97_SINGLE("Beep to Headphone Switch", AC97_PC_BEEP, 15, 1, 1),
AC97_SINGLE("Beep to Headphone Volume", AC97_PC_BEEP, 12, 7, 1),
AC97_SINGLE("Beep to Side Tone Switch", AC97_PC_BEEP, 11, 1, 1),
AC97_SINGLE("Beep to Side Tone Volume", AC97_PC_BEEP, 8, 7, 1),
AC97_SINGLE("Beep to Phone Switch", AC97_PC_BEEP, 7, 1, 1),
AC97_SINGLE("Beep to Phone Volume", AC97_PC_BEEP, 4, 7, 1),

AC97_SINGLE("Aux to Headphone Switch", AC97_CD, 15, 1, 1),
AC97_SINGLE("Aux to Headphone Volume", AC97_CD, 12, 7, 1),
AC97_SINGLE("Aux to Side Tone Switch", AC97_CD, 11, 1, 1),
AC97_SINGLE("Aux to Side Tone Volume", AC97_CD, 8, 7, 1),
AC97_SINGLE("Aux to Phone Switch", AC97_CD, 7, 1, 1),
AC97_SINGLE("Aux to Phone Volume", AC97_CD, 4, 7, 1),

AC97_SINGLE("Phone to Headphone Switch", AC97_PHONE, 15, 1, 1),
AC97_SINGLE("Phone to Master Switch", AC97_PHONE, 14, 1, 1),

AC97_SINGLE("Line to Headphone Switch", AC97_LINE, 15, 1, 1),
AC97_SINGLE("Line to Master Switch", AC97_LINE, 14, 1, 1),
AC97_SINGLE("Line to Phone Switch", AC97_LINE, 13, 1, 1),

AC97_SINGLE("PCM Playback to Headphone Switch", AC97_PCM, 15, 1, 1),
AC97_SINGLE("PCM Playback to Master Switch", AC97_PCM, 14, 1, 1),
AC97_SINGLE("PCM Playback to Phone Switch", AC97_PCM, 13, 1, 1),

AC97_SINGLE("Capture 20dB Boost Switch", AC97_REC_SEL, 14, 1, 0),
AC97_ENUM("Capture to Phone Mux", wm9711_enum[4]),
AC97_SINGLE("Capture to Phone 20dB Boost Switch", AC97_REC_SEL, 11, 1, 1),
AC97_ENUM("Capture Select", wm9711_enum[8]),

AC97_SINGLE("3D Upper Cut-off Switch", AC97_3D_CONTROL, 5, 1, 1),
AC97_SINGLE("3D Lower Cut-off Switch", AC97_3D_CONTROL, 4, 1, 1),

AC97_ENUM("Bass Control", wm9711_enum[5]),
AC97_SINGLE("Bass Cut-off Switch", AC97_MASTER_TONE, 12, 1, 1),
AC97_SINGLE("Tone Cut-off Switch", AC97_MASTER_TONE, 4, 1, 1),
AC97_SINGLE("Playback Attenuate (-6dB) Switch", AC97_MASTER_TONE, 6, 1, 0),

AC97_SINGLE("ADC Switch", AC97_REC_GAIN, 15, 1, 1),
AC97_ENUM("Capture Volume Steps", wm9711_enum[6]),
AC97_DOUBLE("Capture Volume", AC97_REC_GAIN, 8, 0, 15, 1),
AC97_SINGLE("Capture ZC Switch", AC97_REC_GAIN, 7, 1, 0),

AC97_SINGLE("Mic 1 to Phone Switch", AC97_MIC, 14, 1, 1),
AC97_SINGLE("Mic 2 to Phone Switch", AC97_MIC, 13, 1, 1),
AC97_ENUM("Mic Select Source", wm9711_enum[7]),
AC97_SINGLE("Mic 1 Volume", AC97_MIC, 8, 32, 1),
AC97_SINGLE("Mic 20dB Boost Switch", AC97_MIC, 7, 1, 0),

AC97_SINGLE("Master ZC Switch", AC97_MASTER, 7, 1, 0),
AC97_SINGLE("Headphone ZC Switch", AC97_HEADPHONE, 7, 1, 0),
AC97_SINGLE("Mono ZC Switch", AC97_MASTER_MONO, 7, 1, 0),
};

static int patch_wolfson_wm9711_specific(struct snd_ac97 * ac97)
{
        int err, i;
        
        for (i = 0; i < ARRAY_SIZE(wm9711_snd_ac97_controls); i++) {
                if ((err = snd_ctl_add(ac97->bus->card, snd_ac97_cnew(&wm9711_snd_ac97_controls[i], ac97))) < 0)
                        return err;
        }
        snd_ac97_write_cache(ac97,  AC97_CODEC_CLASS_REV, 0x0808);
        snd_ac97_write_cache(ac97,  AC97_PCI_SVID, 0x0808);
        snd_ac97_write_cache(ac97,  AC97_VIDEO, 0x0808);
        snd_ac97_write_cache(ac97,  AC97_AUX, 0x0808);
        snd_ac97_write_cache(ac97,  AC97_PC_BEEP, 0x0808);
        snd_ac97_write_cache(ac97,  AC97_CD, 0x0000);
        return 0;
}

static struct snd_ac97_build_ops patch_wolfson_wm9711_ops = {
        .build_specific = patch_wolfson_wm9711_specific,
};

int patch_wolfson11(struct snd_ac97 * ac97)
{
        /* WM9711, WM9712 */
        ac97->build_ops = &patch_wolfson_wm9711_ops;

        ac97->flags |= AC97_HAS_NO_REC_GAIN | AC97_STEREO_MUTES | AC97_HAS_NO_MIC |
                AC97_HAS_NO_PC_BEEP | AC97_HAS_NO_VIDEO | AC97_HAS_NO_CD;
        
        return 0;
}

static const char* wm9713_mic_mixer[] = {"Stereo", "Mic 1", "Mic 2", "Mute"};
static const char* wm9713_rec_mux[] = {"Stereo", "Left", "Right", "Mute"};
static const char* wm9713_rec_src[] = 
        {"Mic 1", "Mic 2", "Line", "Mono In", "Headphone Mix", "Master Mix", 
        "Mono Mix", "Zh"};
static const char* wm9713_rec_gain[] = {"+1.5dB Steps", "+0.75dB Steps"};
static const char* wm9713_alc_select[] = {"None", "Left", "Right", "Stereo"};
static const char* wm9713_mono_pga[] = {"Vmid", "Zh", "Mono Mix", "Inv 1"};
static const char* wm9713_spk_pga[] = 
        {"Vmid", "Zh", "Headphone Mix", "Master Mix", "Inv", "NC", "NC", "NC"};
static const char* wm9713_hp_pga[] = {"Vmid", "Zh", "Headphone Mix", "NC"};
static const char* wm9713_out3_pga[] = {"Vmid", "Zh", "Inv 1", "NC"};
static const char* wm9713_out4_pga[] = {"Vmid", "Zh", "Inv 2", "NC"};
static const char* wm9713_dac_inv[] = 
        {"Off", "Mono Mix", "Master Mix", "Headphone Mix L", "Headphone Mix R", 
        "Headphone Mix Mono", "NC", "Vmid"};
static const char* wm9713_base[] = {"Linear Control", "Adaptive Boost"};
static const char* wm9713_ng_type[] = {"Constant Gain", "Mute"};

static const struct ac97_enum wm9713_enum[] = {
AC97_ENUM_SINGLE(AC97_LINE, 3, 4, wm9713_mic_mixer),
AC97_ENUM_SINGLE(AC97_VIDEO, 14, 4, wm9713_rec_mux),
AC97_ENUM_SINGLE(AC97_VIDEO, 9, 4, wm9713_rec_mux),
AC97_ENUM_DOUBLE(AC97_VIDEO, 3, 0, 8, wm9713_rec_src),
AC97_ENUM_DOUBLE(AC97_CD, 14, 6, 2, wm9713_rec_gain),
AC97_ENUM_SINGLE(AC97_PCI_SVID, 14, 4, wm9713_alc_select),
AC97_ENUM_SINGLE(AC97_REC_GAIN, 14, 4, wm9713_mono_pga),
AC97_ENUM_DOUBLE(AC97_REC_GAIN, 11, 8, 8, wm9713_spk_pga),
AC97_ENUM_DOUBLE(AC97_REC_GAIN, 6, 4, 4, wm9713_hp_pga),
AC97_ENUM_SINGLE(AC97_REC_GAIN, 2, 4, wm9713_out3_pga),
AC97_ENUM_SINGLE(AC97_REC_GAIN, 0, 4, wm9713_out4_pga),
AC97_ENUM_DOUBLE(AC97_REC_GAIN_MIC, 13, 10, 8, wm9713_dac_inv),
AC97_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 15, 2, wm9713_base),
AC97_ENUM_SINGLE(AC97_PCI_SVID, 5, 2, wm9713_ng_type),
};

static const struct snd_kcontrol_new wm13_snd_ac97_controls[] = {
AC97_DOUBLE("Line In Volume", AC97_PC_BEEP, 8, 0, 31, 1),
AC97_SINGLE("Line In to Headphone Switch", AC97_PC_BEEP, 15, 1, 1),
AC97_SINGLE("Line In to Master Switch", AC97_PC_BEEP, 14, 1, 1),
AC97_SINGLE("Line In to Mono Switch", AC97_PC_BEEP, 13, 1, 1),

AC97_DOUBLE("PCM Playback Volume", AC97_PHONE, 8, 0, 31, 1),
AC97_SINGLE("PCM Playback to Headphone Switch", AC97_PHONE, 15, 1, 1),
AC97_SINGLE("PCM Playback to Master Switch", AC97_PHONE, 14, 1, 1),
AC97_SINGLE("PCM Playback to Mono Switch", AC97_PHONE, 13, 1, 1),

AC97_SINGLE("Mic 1 Volume", AC97_MIC, 8, 31, 1),
AC97_SINGLE("Mic 2 Volume", AC97_MIC, 0, 31, 1),
AC97_SINGLE("Mic 1 to Mono Switch", AC97_LINE, 7, 1, 1),
AC97_SINGLE("Mic 2 to Mono Switch", AC97_LINE, 6, 1, 1),
AC97_SINGLE("Mic Boost (+20dB) Switch", AC97_LINE, 5, 1, 0),
AC97_ENUM("Mic to Headphone Mux", wm9713_enum[0]),
AC97_SINGLE("Mic Headphone Mixer Volume", AC97_LINE, 0, 7, 1),

AC97_SINGLE("Capture Switch", AC97_CD, 15, 1, 1),
AC97_ENUM("Capture Volume Steps", wm9713_enum[4]),
AC97_DOUBLE("Capture Volume", AC97_CD, 8, 0, 15, 0),
AC97_SINGLE("Capture ZC Switch", AC97_CD, 7, 1, 0),

AC97_ENUM("Capture to Headphone Mux", wm9713_enum[1]),
AC97_SINGLE("Capture to Headphone Volume", AC97_VIDEO, 11, 7, 1),
AC97_ENUM("Capture to Mono Mux", wm9713_enum[2]),
AC97_SINGLE("Capture to Mono Boost (+20dB) Switch", AC97_VIDEO, 8, 1, 0),
AC97_SINGLE("Capture ADC Boost (+20dB) Switch", AC97_VIDEO, 6, 1, 0),
AC97_ENUM("Capture Select", wm9713_enum[3]),

AC97_SINGLE("ALC Target Volume", AC97_CODEC_CLASS_REV, 12, 15, 0),
AC97_SINGLE("ALC Hold Time", AC97_CODEC_CLASS_REV, 8, 15, 0),
AC97_SINGLE("ALC Decay Time ", AC97_CODEC_CLASS_REV, 4, 15, 0),
AC97_SINGLE("ALC Attack Time", AC97_CODEC_CLASS_REV, 0, 15, 0),
AC97_ENUM("ALC Function", wm9713_enum[5]),
AC97_SINGLE("ALC Max Volume", AC97_PCI_SVID, 11, 7, 0),
AC97_SINGLE("ALC ZC Timeout", AC97_PCI_SVID, 9, 3, 0),
AC97_SINGLE("ALC ZC Switch", AC97_PCI_SVID, 8, 1, 0),
AC97_SINGLE("ALC NG Switch", AC97_PCI_SVID, 7, 1, 0),
AC97_ENUM("ALC NG Type", wm9713_enum[13]),
AC97_SINGLE("ALC NG Threshold", AC97_PCI_SVID, 0, 31, 0),

AC97_DOUBLE("Master ZC Switch", AC97_MASTER, 14, 6, 1, 0),
AC97_DOUBLE("Headphone ZC Switch", AC97_HEADPHONE, 14, 6, 1, 0),
AC97_DOUBLE("Out3/4 ZC Switch", AC97_MASTER_MONO, 14, 6, 1, 0),
AC97_SINGLE("Master Right Switch", AC97_MASTER, 7, 1, 1),
AC97_SINGLE("Headphone Right Switch", AC97_HEADPHONE, 7, 1, 1),
AC97_SINGLE("Out3/4 Right Switch", AC97_MASTER_MONO, 7, 1, 1),

AC97_SINGLE("Mono In to Headphone Switch", AC97_MASTER_TONE, 15, 1, 1),
AC97_SINGLE("Mono In to Master Switch", AC97_MASTER_TONE, 14, 1, 1),
AC97_SINGLE("Mono In Volume", AC97_MASTER_TONE, 8, 31, 1),
AC97_SINGLE("Mono Switch", AC97_MASTER_TONE, 7, 1, 1),
AC97_SINGLE("Mono ZC Switch", AC97_MASTER_TONE, 6, 1, 0),
AC97_SINGLE("Mono Volume", AC97_MASTER_TONE, 0, 31, 1),

AC97_SINGLE("PC Beep to Headphone Switch", AC97_AUX, 15, 1, 1),
AC97_SINGLE("PC Beep to Headphone Volume", AC97_AUX, 12, 7, 1),
AC97_SINGLE("PC Beep to Master Switch", AC97_AUX, 11, 1, 1),
AC97_SINGLE("PC Beep to Master Volume", AC97_AUX, 8, 7, 1),
AC97_SINGLE("PC Beep to Mono Switch", AC97_AUX, 7, 1, 1),
AC97_SINGLE("PC Beep to Mono Volume", AC97_AUX, 4, 7, 1),

AC97_SINGLE("Voice to Headphone Switch", AC97_PCM, 15, 1, 1),
AC97_SINGLE("Voice to Headphone Volume", AC97_PCM, 12, 7, 1),
AC97_SINGLE("Voice to Master Switch", AC97_PCM, 11, 1, 1),
AC97_SINGLE("Voice to Master Volume", AC97_PCM, 8, 7, 1),
AC97_SINGLE("Voice to Mono Switch", AC97_PCM, 7, 1, 1),
AC97_SINGLE("Voice to Mono Volume", AC97_PCM, 4, 7, 1),

AC97_SINGLE("Aux to Headphone Switch", AC97_REC_SEL, 15, 1, 1),
AC97_SINGLE("Aux to Headphone Volume", AC97_REC_SEL, 12, 7, 1),
AC97_SINGLE("Aux to Master Switch", AC97_REC_SEL, 11, 1, 1),
AC97_SINGLE("Aux to Master Volume", AC97_REC_SEL, 8, 7, 1),
AC97_SINGLE("Aux to Mono Switch", AC97_REC_SEL, 7, 1, 1),
AC97_SINGLE("Aux to Mono Volume", AC97_REC_SEL, 4, 7, 1),

AC97_ENUM("Mono Input Mux", wm9713_enum[6]),
AC97_ENUM("Master Input Mux", wm9713_enum[7]),
AC97_ENUM("Headphone Input Mux", wm9713_enum[8]),
AC97_ENUM("Out 3 Input Mux", wm9713_enum[9]),
AC97_ENUM("Out 4 Input Mux", wm9713_enum[10]),

AC97_ENUM("Bass Control", wm9713_enum[12]),
AC97_SINGLE("Bass Cut-off Switch", AC97_GENERAL_PURPOSE, 12, 1, 1),
AC97_SINGLE("Tone Cut-off Switch", AC97_GENERAL_PURPOSE, 4, 1, 1),
AC97_SINGLE("Playback Attenuate (-6dB) Switch", AC97_GENERAL_PURPOSE, 6, 1, 0),
AC97_SINGLE("Bass Volume", AC97_GENERAL_PURPOSE, 8, 15, 1),
AC97_SINGLE("Tone Volume", AC97_GENERAL_PURPOSE, 0, 15, 1),
};

static const struct snd_kcontrol_new wm13_snd_ac97_controls_3d[] = {
AC97_ENUM("Inv Input Mux", wm9713_enum[11]),
AC97_SINGLE("3D Upper Cut-off Switch", AC97_REC_GAIN_MIC, 5, 1, 0),
AC97_SINGLE("3D Lower Cut-off Switch", AC97_REC_GAIN_MIC, 4, 1, 0),
AC97_SINGLE("3D Depth", AC97_REC_GAIN_MIC, 0, 15, 1),
};

static int patch_wolfson_wm9713_3d (struct snd_ac97 * ac97)
{
        int err, i;
    
        for (i = 0; i < ARRAY_SIZE(wm13_snd_ac97_controls_3d); i++) {
                if ((err = snd_ctl_add(ac97->bus->card, snd_ac97_cnew(&wm13_snd_ac97_controls_3d[i], ac97))) < 0)
                        return err;
        }
        return 0;
}

static int patch_wolfson_wm9713_specific(struct snd_ac97 * ac97)
{
        int err, i;
        
        for (i = 0; i < ARRAY_SIZE(wm13_snd_ac97_controls); i++) {
                if ((err = snd_ctl_add(ac97->bus->card, snd_ac97_cnew(&wm13_snd_ac97_controls[i], ac97))) < 0)
                        return err;
        }
        snd_ac97_write_cache(ac97, AC97_PC_BEEP, 0x0808);
        snd_ac97_write_cache(ac97, AC97_PHONE, 0x0808);
        snd_ac97_write_cache(ac97, AC97_MIC, 0x0808);
        snd_ac97_write_cache(ac97, AC97_LINE, 0x00da);
        snd_ac97_write_cache(ac97, AC97_CD, 0x0808);
        snd_ac97_write_cache(ac97, AC97_VIDEO, 0xd612);
        snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x1ba0);
        return 0;
}

#ifdef CONFIG_PM
static void patch_wolfson_wm9713_suspend (struct snd_ac97 * ac97)
{
        snd_ac97_write_cache(ac97, AC97_EXTENDED_MID, 0xfeff);
        snd_ac97_write_cache(ac97, AC97_EXTENDED_MSTATUS, 0xffff);
}

static void patch_wolfson_wm9713_resume (struct snd_ac97 * ac97)
{
        snd_ac97_write_cache(ac97, AC97_EXTENDED_MID, 0xda00);
        snd_ac97_write_cache(ac97, AC97_EXTENDED_MSTATUS, 0x3810);
        snd_ac97_write_cache(ac97, AC97_POWERDOWN, 0x0);
}
#endif

static struct snd_ac97_build_ops patch_wolfson_wm9713_ops = {
        .build_specific = patch_wolfson_wm9713_specific,
        .build_3d = patch_wolfson_wm9713_3d,
#ifdef CONFIG_PM        
        .suspend = patch_wolfson_wm9713_suspend,
        .resume = patch_wolfson_wm9713_resume
#endif
};

int patch_wolfson13(struct snd_ac97 * ac97)
{
        /* WM9713, WM9714 */
        ac97->build_ops = &patch_wolfson_wm9713_ops;

        ac97->flags |= AC97_HAS_NO_REC_GAIN | AC97_STEREO_MUTES | AC97_HAS_NO_PHONE |
                AC97_HAS_NO_PC_BEEP | AC97_HAS_NO_VIDEO | AC97_HAS_NO_CD | AC97_HAS_NO_TONE |
                AC97_HAS_NO_STD_PCM;
        ac97->scaps &= ~AC97_SCAP_MODEM;

        snd_ac97_write_cache(ac97, AC97_EXTENDED_MID, 0xda00);
        snd_ac97_write_cache(ac97, AC97_EXTENDED_MSTATUS, 0x3810);
        snd_ac97_write_cache(ac97, AC97_POWERDOWN, 0x0);

        return 0;
}

/*
 * Tritech codec
 */
int patch_tritech_tr28028(struct snd_ac97 * ac97)
{
        snd_ac97_write_cache(ac97, 0x26, 0x0300);
        snd_ac97_write_cache(ac97, 0x26, 0x0000);
        snd_ac97_write_cache(ac97, AC97_SURROUND_MASTER, 0x0000);
        snd_ac97_write_cache(ac97, AC97_SPDIF, 0x0000);
        return 0;
}

/*
 * Sigmatel STAC97xx codecs
 */
static int patch_sigmatel_stac9700_3d(struct snd_ac97 * ac97)
{
        struct snd_kcontrol *kctl;
        int err;

        if ((err = snd_ctl_add(ac97->bus->card, kctl = snd_ac97_cnew(&snd_ac97_controls_3d[0], ac97))) < 0)
                return err;
        strcpy(kctl->id.name, "3D Control Sigmatel - Depth");
        kctl->private_value = AC97_SINGLE_VALUE(AC97_3D_CONTROL, 2, 3, 0);
        snd_ac97_write_cache(ac97, AC97_3D_CONTROL, 0x0000);
        return 0;
}

static int patch_sigmatel_stac9708_3d(struct snd_ac97 * ac97)
{
        struct snd_kcontrol *kctl;
        int err;

        if ((err = snd_ctl_add(ac97->bus->card, kctl = snd_ac97_cnew(&snd_ac97_controls_3d[0], ac97))) < 0)
                return err;
        strcpy(kctl->id.name, "3D Control Sigmatel - Depth");
        kctl->private_value = AC97_SINGLE_VALUE(AC97_3D_CONTROL, 0, 3, 0);
        if ((err = snd_ctl_add(ac97->bus->card, kctl = snd_ac97_cnew(&snd_ac97_controls_3d[0], ac97))) < 0)
                return err;
        strcpy(kctl->id.name, "3D Control Sigmatel - Rear Depth");
        kctl->private_value = AC97_SINGLE_VALUE(AC97_3D_CONTROL, 2, 3, 0);
        snd_ac97_write_cache(ac97, AC97_3D_CONTROL, 0x0000);
        return 0;
}

static const struct snd_kcontrol_new snd_ac97_sigmatel_4speaker =
AC97_SINGLE("Sigmatel 4-Speaker Stereo Playback Switch", AC97_SIGMATEL_DAC2INVERT, 2, 1, 0);

static const struct snd_kcontrol_new snd_ac97_sigmatel_phaseinvert =
AC97_SINGLE("Sigmatel Surround Phase Inversion Playback Switch", AC97_SIGMATEL_DAC2INVERT, 3, 1, 0);

static const struct snd_kcontrol_new snd_ac97_sigmatel_controls[] = {
AC97_SINGLE("Sigmatel DAC 6dB Attenuate", AC97_SIGMATEL_ANALOG, 1, 1, 0),
AC97_SINGLE("Sigmatel ADC 6dB Attenuate", AC97_SIGMATEL_ANALOG, 0, 1, 0)
};

static int patch_sigmatel_stac97xx_specific(struct snd_ac97 * ac97)
{
        int err;

        snd_ac97_write_cache(ac97, AC97_SIGMATEL_ANALOG, snd_ac97_read(ac97, AC97_SIGMATEL_ANALOG) & ~0x0003);
        if (snd_ac97_try_bit(ac97, AC97_SIGMATEL_ANALOG, 1))
                if ((err = patch_build_controls(ac97, &snd_ac97_sigmatel_controls[0], 1)) < 0)
                        return err;
        if (snd_ac97_try_bit(ac97, AC97_SIGMATEL_ANALOG, 0))
                if ((err = patch_build_controls(ac97, &snd_ac97_sigmatel_controls[1], 1)) < 0)
                        return err;
        if (snd_ac97_try_bit(ac97, AC97_SIGMATEL_DAC2INVERT, 2))
                if ((err = patch_build_controls(ac97, &snd_ac97_sigmatel_4speaker, 1)) < 0)
                        return err;
        if (snd_ac97_try_bit(ac97, AC97_SIGMATEL_DAC2INVERT, 3))
                if ((err = patch_build_controls(ac97, &snd_ac97_sigmatel_phaseinvert, 1)) < 0)
                        return err;
        return 0;
}

static struct snd_ac97_build_ops patch_sigmatel_stac9700_ops = {
        .build_3d       = patch_sigmatel_stac9700_3d,
        .build_specific = patch_sigmatel_stac97xx_specific
};

int patch_sigmatel_stac9700(struct snd_ac97 * ac97)
{
        ac97->build_ops = &patch_sigmatel_stac9700_ops;
        return 0;
}

static int snd_ac97_stac9708_put_bias(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
        int err;

        mutex_lock(&ac97->page_mutex);
        snd_ac97_write(ac97, AC97_SIGMATEL_BIAS1, 0xabba);
        err = snd_ac97_update_bits(ac97, AC97_SIGMATEL_BIAS2, 0x0010,
                                   (ucontrol->value.integer.value[0] & 1) << 4);
        snd_ac97_write(ac97, AC97_SIGMATEL_BIAS1, 0);
        mutex_unlock(&ac97->page_mutex);
        return err;
}

static const struct snd_kcontrol_new snd_ac97_stac9708_bias_control = {
        .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
        .name = "Sigmatel Output Bias Switch",
        .info = snd_ac97_info_volsw,
        .get = snd_ac97_get_volsw,
        .put = snd_ac97_stac9708_put_bias,
        .private_value = AC97_SINGLE_VALUE(AC97_SIGMATEL_BIAS2, 4, 1, 0),
};

static int patch_sigmatel_stac9708_specific(struct snd_ac97 *ac97)
{
        int err;

        snd_ac97_rename_vol_ctl(ac97, "Headphone Playback", "Sigmatel Surround Playback");
        if ((err = patch_build_controls(ac97, &snd_ac97_stac9708_bias_control, 1)) < 0)
                return err;
        return patch_sigmatel_stac97xx_specific(ac97);
}

static struct snd_ac97_build_ops patch_sigmatel_stac9708_ops = {
        .build_3d       = patch_sigmatel_stac9708_3d,
        .build_specific = patch_sigmatel_stac9708_specific
};

int patch_sigmatel_stac9708(struct snd_ac97 * ac97)
{
        unsigned int codec72, codec6c;

        ac97->build_ops = &patch_sigmatel_stac9708_ops;
        ac97->caps |= 0x10;     /* HP (sigmatel surround) support */

        codec72 = snd_ac97_read(ac97, AC97_SIGMATEL_BIAS2) & 0x8000;
        codec6c = snd_ac97_read(ac97, AC97_SIGMATEL_ANALOG);

        if ((codec72==0) && (codec6c==0)) {
                snd_ac97_write_cache(ac97, AC97_SIGMATEL_CIC1, 0xabba);
                snd_ac97_write_cache(ac97, AC97_SIGMATEL_CIC2, 0x1000);
                snd_ac97_write_cache(ac97, AC97_SIGMATEL_BIAS1, 0xabba);
                snd_ac97_write_cache(ac97, AC97_SIGMATEL_BIAS2, 0x0007);
        } else if ((codec72==0x8000) && (codec6c==0)) {
                snd_ac97_write_cache(ac97, AC97_SIGMATEL_CIC1, 0xabba);
                snd_ac97_write_cache(ac97, AC97_SIGMATEL_CIC2, 0x1001);
                snd_ac97_write_cache(ac97, AC97_SIGMATEL_DAC2INVERT, 0x0008);
        } else if ((codec72==0x8000) && (codec6c==0x0080)) {
                /* nothing */
        }
        snd_ac97_write_cache(ac97, AC97_SIGMATEL_MULTICHN, 0x0000);
        return 0;
}

int patch_sigmatel_stac9721(struct snd_ac97 * ac97)
{
        ac97->build_ops = &patch_sigmatel_stac9700_ops;
        if (snd_ac97_read(ac97, AC97_SIGMATEL_ANALOG) == 0) {
                // patch for SigmaTel
                snd_ac97_write_cache(ac97, AC97_SIGMATEL_CIC1, 0xabba);
                snd_ac97_write_cache(ac97, AC97_SIGMATEL_CIC2, 0x4000);
                snd_ac97_write_cache(ac97, AC97_SIGMATEL_BIAS1, 0xabba);
                snd_ac97_write_cache(ac97, AC97_SIGMATEL_BIAS2, 0x0002);
        }
        snd_ac97_write_cache(ac97, AC97_SIGMATEL_MULTICHN, 0x0000);
        return 0;
}

int patch_sigmatel_stac9744(struct snd_ac97 * ac97)
{
        // patch for SigmaTel
        ac97->build_ops = &patch_sigmatel_stac9700_ops;
        snd_ac97_write_cache(ac97, AC97_SIGMATEL_CIC1, 0xabba);
        snd_ac97_write_cache(ac97, AC97_SIGMATEL_CIC2, 0x0000); /* is this correct? --jk */
        snd_ac97_write_cache(ac97, AC97_SIGMATEL_BIAS1, 0xabba);
        snd_ac97_write_cache(ac97, AC97_SIGMATEL_BIAS2, 0x0002);
        snd_ac97_write_cache(ac97, AC97_SIGMATEL_MULTICHN, 0x0000);
        return 0;
}

int patch_sigmatel_stac9756(struct snd_ac97 * ac97)
{
        // patch for SigmaTel
        ac97->build_ops = &patch_sigmatel_stac9700_ops;
        snd_ac97_write_cache(ac97, AC97_SIGMATEL_CIC1, 0xabba);
        snd_ac97_write_cache(ac97, AC97_SIGMATEL_CIC2, 0x0000); /* is this correct? --jk */
        snd_ac97_write_cache(ac97, AC97_SIGMATEL_BIAS1, 0xabba);
        snd_ac97_write_cache(ac97, AC97_SIGMATEL_BIAS2, 0x0002);
        snd_ac97_write_cache(ac97, AC97_SIGMATEL_MULTICHN, 0x0000);
        return 0;
}

static int snd_ac97_stac9758_output_jack_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
        static char *texts[5] = { "Input/Disabled", "Front Output",
                "Rear Output", "Center/LFE Output", "Mixer Output" };

        uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
        uinfo->count = 1;
        uinfo->value.enumerated.items = 5;
        if (uinfo->value.enumerated.item > 4)
                uinfo->value.enumerated.item = 4;
        strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
        return 0;
}

static int snd_ac97_stac9758_output_jack_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
        int shift = kcontrol->private_value;
        unsigned short val;

        val = ac97->regs[AC97_SIGMATEL_OUTSEL] >> shift;
        if (!(val & 4))
                ucontrol->value.enumerated.item[0] = 0;
        else
                ucontrol->value.enumerated.item[0] = 1 + (val & 3);
        return 0;
}

static int snd_ac97_stac9758_output_jack_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
        int shift = kcontrol->private_value;
        unsigned short val;

        if (ucontrol->value.enumerated.item[0] > 4)
                return -EINVAL;
        if (ucontrol->value.enumerated.item[0] == 0)
                val = 0;
        else
                val = 4 | (ucontrol->value.enumerated.item[0] - 1);
        return ac97_update_bits_page(ac97, AC97_SIGMATEL_OUTSEL,
                                     7 << shift, val << shift, 0);
}

static int snd_ac97_stac9758_input_jack_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
        static char *texts[7] = { "Mic2 Jack", "Mic1 Jack", "Line In Jack",
                "Front Jack", "Rear Jack", "Center/LFE Jack", "Mute" };

        uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
        uinfo->count = 1;
        uinfo->value.enumerated.items = 7;
        if (uinfo->value.enumerated.item > 6)
                uinfo->value.enumerated.item = 6;
        strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
        return 0;
}

static int snd_ac97_stac9758_input_jack_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
        int shift = kcontrol->private_value;
        unsigned short val;

        val = ac97->regs[AC97_SIGMATEL_INSEL];
        ucontrol->value.enumerated.item[0] = (val >> shift) & 7;
        return 0;
}

static int snd_ac97_stac9758_input_jack_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
        int shift = kcontrol->private_value;

        return ac97_update_bits_page(ac97, AC97_SIGMATEL_INSEL, 7 << shift,
                                     ucontrol->value.enumerated.item[0] << shift, 0);
}

static int snd_ac97_stac9758_phonesel_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
        static char *texts[3] = { "None", "Front Jack", "Rear Jack" };

        uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
        uinfo->count = 1;
        uinfo->value.enumerated.items = 3;
        if (uinfo->value.enumerated.item > 2)
                uinfo->value.enumerated.item = 2;
        strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
        return 0;
}

static int snd_ac97_stac9758_phonesel_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);

        ucontrol->value.enumerated.item[0] = ac97->regs[AC97_SIGMATEL_IOMISC] & 3;
        return 0;
}

static int snd_ac97_stac9758_phonesel_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);

        return ac97_update_bits_page(ac97, AC97_SIGMATEL_IOMISC, 3,
                                     ucontrol->value.enumerated.item[0], 0);
}

#define STAC9758_OUTPUT_JACK(xname, shift) \
{       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
        .info = snd_ac97_stac9758_output_jack_info, \
        .get = snd_ac97_stac9758_output_jack_get, \
        .put = snd_ac97_stac9758_output_jack_put, \
        .private_value = shift }
#define STAC9758_INPUT_JACK(xname, shift) \
{       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
        .info = snd_ac97_stac9758_input_jack_info, \
        .get = snd_ac97_stac9758_input_jack_get, \
        .put = snd_ac97_stac9758_input_jack_put, \
        .private_value = shift }
static const struct snd_kcontrol_new snd_ac97_sigmatel_stac9758_controls[] = {
        STAC9758_OUTPUT_JACK("Mic1 Jack", 1),
        STAC9758_OUTPUT_JACK("LineIn Jack", 4),
        STAC9758_OUTPUT_JACK("Front Jack", 7),
        STAC9758_OUTPUT_JACK("Rear Jack", 10),
        STAC9758_OUTPUT_JACK("Center/LFE Jack", 13),
        STAC9758_INPUT_JACK("Mic Input Source", 0),
        STAC9758_INPUT_JACK("Line Input Source", 8),
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
                .name = "Headphone Amp",
                .info = snd_ac97_stac9758_phonesel_info,
                .get = snd_ac97_stac9758_phonesel_get,
                .put = snd_ac97_stac9758_phonesel_put
        },
        AC97_SINGLE("Exchange Center/LFE", AC97_SIGMATEL_IOMISC, 4, 1, 0),
        AC97_SINGLE("Headphone +3dB Boost", AC97_SIGMATEL_IOMISC, 8, 1, 0)
};

static int patch_sigmatel_stac9758_specific(struct snd_ac97 *ac97)
{
        int err;

        err = patch_sigmatel_stac97xx_specific(ac97);
        if (err < 0)
                return err;
        err = patch_build_controls(ac97, snd_ac97_sigmatel_stac9758_controls,
                                   ARRAY_SIZE(snd_ac97_sigmatel_stac9758_controls));
        if (err < 0)
                return err;
        /* DAC-A direct */
        snd_ac97_rename_vol_ctl(ac97, "Headphone Playback", "Front Playback");
        /* DAC-A to Mix = PCM */
        /* DAC-B direct = Surround */
        /* DAC-B to Mix */
        snd_ac97_rename_vol_ctl(ac97, "Video Playback", "Surround Mix Playback");
        /* DAC-C direct = Center/LFE */

        return 0;
}

static struct snd_ac97_build_ops patch_sigmatel_stac9758_ops = {
        .build_3d       = patch_sigmatel_stac9700_3d,
        .build_specific = patch_sigmatel_stac9758_specific
};

int patch_sigmatel_stac9758(struct snd_ac97 * ac97)
{
        static unsigned short regs[4] = {
                AC97_SIGMATEL_OUTSEL,
                AC97_SIGMATEL_IOMISC,
                AC97_SIGMATEL_INSEL,
                AC97_SIGMATEL_VARIOUS
        };
        static unsigned short def_regs[4] = {
                /* OUTSEL */ 0xd794, /* CL:CL, SR:SR, LO:MX, LI:DS, MI:DS */
                /* IOMISC */ 0x2001,
                /* INSEL */ 0x0201, /* LI:LI, MI:M1 */
                /* VARIOUS */ 0x0040
        };
        static unsigned short m675_regs[4] = {
                /* OUTSEL */ 0xfc70, /* CL:MX, SR:MX, LO:DS, LI:MX, MI:DS */
                /* IOMISC */ 0x2102, /* HP amp on */
                /* INSEL */ 0x0203, /* LI:LI, MI:FR */
                /* VARIOUS */ 0x0041 /* stereo mic */
        };
        unsigned short *pregs = def_regs;
        int i;

        /* Gateway M675 notebook */
        if (ac97->pci && 
            ac97->subsystem_vendor == 0x107b &&
            ac97->subsystem_device == 0x0601)
                pregs = m675_regs;

        // patch for SigmaTel
        ac97->build_ops = &patch_sigmatel_stac9758_ops;
        /* FIXME: assume only page 0 for writing cache */
        snd_ac97_update_bits(ac97, AC97_INT_PAGING, AC97_PAGE_MASK, AC97_PAGE_VENDOR);
        for (i = 0; i < 4; i++)
                snd_ac97_write_cache(ac97, regs[i], pregs[i]);

        ac97->flags |= AC97_STEREO_MUTES;
        return 0;
}

/*
 * Cirrus Logic CS42xx codecs
 */
static const struct snd_kcontrol_new snd_ac97_cirrus_controls_spdif[2] = {
        AC97_SINGLE(SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH), AC97_CSR_SPDIF, 15, 1, 0),
        AC97_SINGLE(SNDRV_CTL_NAME_IEC958("",PLAYBACK,NONE) "AC97-SPSA", AC97_CSR_ACMODE, 0, 3, 0)
};

static int patch_cirrus_build_spdif(struct snd_ac97 * ac97)
{
        int err;

        /* con mask, pro mask, default */
        if ((err = patch_build_controls(ac97, &snd_ac97_controls_spdif[0], 3)) < 0)
                return err;
        /* switch, spsa */
        if ((err = patch_build_controls(ac97, &snd_ac97_cirrus_controls_spdif[0], 1)) < 0)
                return err;
        switch (ac97->id & AC97_ID_CS_MASK) {
        case AC97_ID_CS4205:
                if ((err = patch_build_controls(ac97, &snd_ac97_cirrus_controls_spdif[1], 1)) < 0)
                        return err;
                break;
        }
        /* set default PCM S/PDIF params */
        /* consumer,PCM audio,no copyright,no preemphasis,PCM coder,original,48000Hz */
        snd_ac97_write_cache(ac97, AC97_CSR_SPDIF, 0x0a20);
        return 0;
}

static struct snd_ac97_build_ops patch_cirrus_ops = {
        .build_spdif = patch_cirrus_build_spdif
};

int patch_cirrus_spdif(struct snd_ac97 * ac97)
{
        /* Basically, the cs4201/cs4205/cs4297a has non-standard sp/dif registers.
           WHY CAN'T ANYONE FOLLOW THE BLOODY SPEC?  *sigh*
           - sp/dif EA ID is not set, but sp/dif is always present.
           - enable/disable is spdif register bit 15.
           - sp/dif control register is 0x68.  differs from AC97:
           - valid is bit 14 (vs 15)
           - no DRS
           - only 44.1/48k [00 = 48, 01=44,1] (AC97 is 00=44.1, 10=48)
           - sp/dif ssource select is in 0x5e bits 0,1.
        */

        ac97->build_ops = &patch_cirrus_ops;
        ac97->flags |= AC97_CS_SPDIF; 
        ac97->rates[AC97_RATES_SPDIF] &= ~SNDRV_PCM_RATE_32000;
        ac97->ext_id |= AC97_EI_SPDIF;  /* force the detection of spdif */
        snd_ac97_write_cache(ac97, AC97_CSR_ACMODE, 0x0080);
        return 0;
}

int patch_cirrus_cs4299(struct snd_ac97 * ac97)
{
        /* force the detection of PC Beep */
        ac97->flags |= AC97_HAS_PC_BEEP;
        
        return patch_cirrus_spdif(ac97);
}

/*
 * Conexant codecs
 */
static const struct snd_kcontrol_new snd_ac97_conexant_controls_spdif[1] = {
        AC97_SINGLE(SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH), AC97_CXR_AUDIO_MISC, 3, 1, 0),
};

static int patch_conexant_build_spdif(struct snd_ac97 * ac97)
{
        int err;

        /* con mask, pro mask, default */
        if ((err = patch_build_controls(ac97, &snd_ac97_controls_spdif[0], 3)) < 0)
                return err;
        /* switch */
        if ((err = patch_build_controls(ac97, &snd_ac97_conexant_controls_spdif[0], 1)) < 0)
                return err;
        /* set default PCM S/PDIF params */
        /* consumer,PCM audio,no copyright,no preemphasis,PCM coder,original,48000Hz */
        snd_ac97_write_cache(ac97, AC97_CXR_AUDIO_MISC,
                             snd_ac97_read(ac97, AC97_CXR_AUDIO_MISC) & ~(AC97_CXR_SPDIFEN|AC97_CXR_COPYRGT|AC97_CXR_SPDIF_MASK));
        return 0;
}

static struct snd_ac97_build_ops patch_conexant_ops = {
        .build_spdif = patch_conexant_build_spdif
};

int patch_conexant(struct snd_ac97 * ac97)
{
        ac97->build_ops = &patch_conexant_ops;
        ac97->flags |= AC97_CX_SPDIF;
        ac97->ext_id |= AC97_EI_SPDIF;  /* force the detection of spdif */
        ac97->rates[AC97_RATES_SPDIF] = SNDRV_PCM_RATE_48000; /* 48k only */
        return 0;
}

/*
 * Analog Device AD18xx, AD19xx codecs
 */
#ifdef CONFIG_PM
static void ad18xx_resume(struct snd_ac97 *ac97)
{
        static unsigned short setup_regs[] = {
                AC97_AD_MISC, AC97_AD_SERIAL_CFG, AC97_AD_JACK_SPDIF,
        };
        int i, codec;

        for (i = 0; i < (int)ARRAY_SIZE(setup_regs); i++) {
                unsigned short reg = setup_regs[i];
                if (test_bit(reg, ac97->reg_accessed)) {
                        snd_ac97_write(ac97, reg, ac97->regs[reg]);
                        snd_ac97_read(ac97, reg);
                }
        }

        if (! (ac97->flags & AC97_AD_MULTI))
                /* normal restore */
                snd_ac97_restore_status(ac97);
        else {
                /* restore the AD18xx codec configurations */
                for (codec = 0; codec < 3; codec++) {
                        if (! ac97->spec.ad18xx.id[codec])
                                continue;
                        /* select single codec */
                        snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000,
                                             ac97->spec.ad18xx.unchained[codec] | ac97->spec.ad18xx.chained[codec]);
                        ac97->bus->ops->write(ac97, AC97_AD_CODEC_CFG, ac97->spec.ad18xx.codec_cfg[codec]);
                }
                /* select all codecs */
                snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000, 0x7000);

                /* restore status */
                for (i = 2; i < 0x7c ; i += 2) {
                        if (i == AC97_POWERDOWN || i == AC97_EXTENDED_ID)
                                continue;
                        if (test_bit(i, ac97->reg_accessed)) {
                                /* handle multi codecs for AD18xx */
                                if (i == AC97_PCM) {
                                        for (codec = 0; codec < 3; codec++) {
                                                if (! ac97->spec.ad18xx.id[codec])
                                                        continue;
                                                /* select single codec */
                                                snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000,
                                                                     ac97->spec.ad18xx.unchained[codec] | ac97->spec.ad18xx.chained[codec]);
                                                /* update PCM bits */
                                                ac97->bus->ops->write(ac97, AC97_PCM, ac97->spec.ad18xx.pcmreg[codec]);
                                        }
                                        /* select all codecs */
                                        snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000, 0x7000);
                                        continue;
                                } else if (i == AC97_AD_TEST ||
                                           i == AC97_AD_CODEC_CFG ||
                                           i == AC97_AD_SERIAL_CFG)
                                        continue; /* ignore */
                        }
                        snd_ac97_write(ac97, i, ac97->regs[i]);
                        snd_ac97_read(ac97, i);
                }
        }

        snd_ac97_restore_iec958(ac97);
}

static void ad1888_resume(struct snd_ac97 *ac97)
{
        ad18xx_resume(ac97);
        snd_ac97_write_cache(ac97, AC97_CODEC_CLASS_REV, 0x8080);
}

#endif

int patch_ad1819(struct snd_ac97 * ac97)
{
        unsigned short scfg;

        // patch for Analog Devices
        scfg = snd_ac97_read(ac97, AC97_AD_SERIAL_CFG);
        snd_ac97_write_cache(ac97, AC97_AD_SERIAL_CFG, scfg | 0x7000); /* select all codecs */
        return 0;
}

static unsigned short patch_ad1881_unchained(struct snd_ac97 * ac97, int idx, unsigned short mask)
{
        unsigned short val;

        // test for unchained codec
        snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000, mask);
        snd_ac97_write_cache(ac97, AC97_AD_CODEC_CFG, 0x0000);  /* ID0C, ID1C, SDIE = off */
        val = snd_ac97_read(ac97, AC97_VENDOR_ID2);
        if ((val & 0xff40) != 0x5340)
                return 0;
        ac97->spec.ad18xx.unchained[idx] = mask;
        ac97->spec.ad18xx.id[idx] = val;
        ac97->spec.ad18xx.codec_cfg[idx] = 0x0000;
        return mask;
}

static int patch_ad1881_chained1(struct snd_ac97 * ac97, int idx, unsigned short codec_bits)
{
        static int cfg_bits[3] = { 1<<12, 1<<14, 1<<13 };
        unsigned short val;
        
        snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000, cfg_bits[idx]);
        snd_ac97_write_cache(ac97, AC97_AD_CODEC_CFG, 0x0004);  // SDIE
        val = snd_ac97_read(ac97, AC97_VENDOR_ID2);
        if ((val & 0xff40) != 0x5340)
                return 0;
        if (codec_bits)
                snd_ac97_write_cache(ac97, AC97_AD_CODEC_CFG, codec_bits);
        ac97->spec.ad18xx.chained[idx] = cfg_bits[idx];
        ac97->spec.ad18xx.id[idx] = val;
        ac97->spec.ad18xx.codec_cfg[idx] = codec_bits ? codec_bits : 0x0004;
        return 1;
}

static void patch_ad1881_chained(struct snd_ac97 * ac97, int unchained_idx, int cidx1, int cidx2)
{
        // already detected?
        if (ac97->spec.ad18xx.unchained[cidx1] || ac97->spec.ad18xx.chained[cidx1])
                cidx1 = -1;
        if (ac97->spec.ad18xx.unchained[cidx2] || ac97->spec.ad18xx.chained[cidx2])
                cidx2 = -1;
        if (cidx1 < 0 && cidx2 < 0)
                return;
        // test for chained codecs
        snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000,
                             ac97->spec.ad18xx.unchained[unchained_idx]);
        snd_ac97_write_cache(ac97, AC97_AD_CODEC_CFG, 0x0002);          // ID1C
        ac97->spec.ad18xx.codec_cfg[unchained_idx] = 0x0002;
        if (cidx1 >= 0) {
                if (patch_ad1881_chained1(ac97, cidx1, 0x0006))         // SDIE | ID1C
                        patch_ad1881_chained1(ac97, cidx2, 0);
                else if (patch_ad1881_chained1(ac97, cidx2, 0x0006))    // SDIE | ID1C
                        patch_ad1881_chained1(ac97, cidx1, 0);
        } else if (cidx2 >= 0) {
                patch_ad1881_chained1(ac97, cidx2, 0);
        }
}

static struct snd_ac97_build_ops patch_ad1881_build_ops = {
#ifdef CONFIG_PM
        .resume = ad18xx_resume
#endif
};

int patch_ad1881(struct snd_ac97 * ac97)
{
        static const char cfg_idxs[3][2] = {
                {2, 1},
                {0, 2},
                {0, 1}
        };
        
        // patch for Analog Devices
        unsigned short codecs[3];
        unsigned short val;
        int idx, num;

        val = snd_ac97_read(ac97, AC97_AD_SERIAL_CFG);
        snd_ac97_write_cache(ac97, AC97_AD_SERIAL_CFG, val);
        codecs[0] = patch_ad1881_unchained(ac97, 0, (1<<12));
        codecs[1] = patch_ad1881_unchained(ac97, 1, (1<<14));
        codecs[2] = patch_ad1881_unchained(ac97, 2, (1<<13));

        if (! (codecs[0] || codecs[1] || codecs[2]))
                goto __end;

        for (idx = 0; idx < 3; idx++)
                if (ac97->spec.ad18xx.unchained[idx])
                        patch_ad1881_chained(ac97, idx, cfg_idxs[idx][0], cfg_idxs[idx][1]);

        if (ac97->spec.ad18xx.id[1]) {
                ac97->flags |= AC97_AD_MULTI;
                ac97->scaps |= AC97_SCAP_SURROUND_DAC;
        }
        if (ac97->spec.ad18xx.id[2]) {
                ac97->flags |= AC97_AD_MULTI;
                ac97->scaps |= AC97_SCAP_CENTER_LFE_DAC;
        }

      __end:
        /* select all codecs */
        snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000, 0x7000);
        /* check if only one codec is present */
        for (idx = num = 0; idx < 3; idx++)
                if (ac97->spec.ad18xx.id[idx])
                        num++;
        if (num == 1) {
                /* ok, deselect all ID bits */
                snd_ac97_write_cache(ac97, AC97_AD_CODEC_CFG, 0x0000);
                ac97->spec.ad18xx.codec_cfg[0] = 
                        ac97->spec.ad18xx.codec_cfg[1] = 
                        ac97->spec.ad18xx.codec_cfg[2] = 0x0000;
        }
        /* required for AD1886/AD1885 combination */
        ac97->ext_id = snd_ac97_read(ac97, AC97_EXTENDED_ID);
        if (ac97->spec.ad18xx.id[0]) {
                ac97->id &= 0xffff0000;
                ac97->id |= ac97->spec.ad18xx.id[0];
        }
        ac97->build_ops = &patch_ad1881_build_ops;
        return 0;
}

static const struct snd_kcontrol_new snd_ac97_controls_ad1885[] = {
        AC97_SINGLE("Digital Mono Direct", AC97_AD_MISC, 11, 1, 0),
        /* AC97_SINGLE("Digital Audio Mode", AC97_AD_MISC, 12, 1, 0), */ /* seems problematic */
        AC97_SINGLE("Low Power Mixer", AC97_AD_MISC, 14, 1, 0),
        AC97_SINGLE("Zero Fill DAC", AC97_AD_MISC, 15, 1, 0),
        AC97_SINGLE("Headphone Jack Sense", AC97_AD_JACK_SPDIF, 9, 1, 1), /* inverted */
        AC97_SINGLE("Line Jack Sense", AC97_AD_JACK_SPDIF, 8, 1, 1), /* inverted */
};

static DECLARE_TLV_DB_SCALE(db_scale_6bit_6db_max, -8850, 150, 0);

static int patch_ad1885_specific(struct snd_ac97 * ac97)
{
        int err;

        if ((err = patch_build_controls(ac97, snd_ac97_controls_ad1885, ARRAY_SIZE(snd_ac97_controls_ad1885))) < 0)
                return err;
        reset_tlv(ac97, "Headphone Playback Volume",
                  db_scale_6bit_6db_max);
        return 0;
}

static struct snd_ac97_build_ops patch_ad1885_build_ops = {
        .build_specific = &patch_ad1885_specific,
#ifdef CONFIG_PM
        .resume = ad18xx_resume
#endif
};

int patch_ad1885(struct snd_ac97 * ac97)
{
        patch_ad1881(ac97);
        /* This is required to deal with the Intel D815EEAL2 */
        /* i.e. Line out is actually headphone out from codec */

        /* set default */
        snd_ac97_write_cache(ac97, AC97_AD_MISC, 0x0404);

        ac97->build_ops = &patch_ad1885_build_ops;
        return 0;
}

static int patch_ad1886_specific(struct snd_ac97 * ac97)
{
        reset_tlv(ac97, "Headphone Playback Volume",
                  db_scale_6bit_6db_max);
        return 0;
}

static struct snd_ac97_build_ops patch_ad1886_build_ops = {
        .build_specific = &patch_ad1886_specific,
#ifdef CONFIG_PM
        .resume = ad18xx_resume
#endif
};

int patch_ad1886(struct snd_ac97 * ac97)
{
        patch_ad1881(ac97);
        /* Presario700 workaround */
        /* for Jack Sense/SPDIF Register misetting causing */
        snd_ac97_write_cache(ac97, AC97_AD_JACK_SPDIF, 0x0010);
        ac97->build_ops = &patch_ad1886_build_ops;
        return 0;
}

/* MISC bits */
#define AC97_AD198X_MBC         0x0003  /* mic boost */
#define AC97_AD198X_MBC_20      0x0000  /* +20dB */
#define AC97_AD198X_MBC_10      0x0001  /* +10dB */
#define AC97_AD198X_MBC_30      0x0002  /* +30dB */
#define AC97_AD198X_VREFD       0x0004  /* VREF high-Z */
#define AC97_AD198X_VREFH       0x0008  /* 2.25V, 3.7V */
#define AC97_AD198X_VREF_0      0x000c  /* 0V */
#define AC97_AD198X_SRU         0x0010  /* sample rate unlock */
#define AC97_AD198X_LOSEL       0x0020  /* LINE_OUT amplifiers input select */
#define AC97_AD198X_2MIC        0x0040  /* 2-channel mic select */
#define AC97_AD198X_SPRD        0x0080  /* SPREAD enable */
#define AC97_AD198X_DMIX0       0x0100  /* downmix mode: 0 = 6-to-4, 1 = 6-to-2 downmix */
#define AC97_AD198X_DMIX1       0x0200  /* downmix mode: 1 = enabled */
#define AC97_AD198X_HPSEL       0x0400  /* headphone amplifier input select */
#define AC97_AD198X_CLDIS       0x0800  /* center/lfe disable */
#define AC97_AD198X_LODIS       0x1000  /* LINE_OUT disable */
#define AC97_AD198X_MSPLT       0x2000  /* mute split */
#define AC97_AD198X_AC97NC      0x4000  /* AC97 no compatible mode */
#define AC97_AD198X_DACZ        0x8000  /* DAC zero-fill mode */


static int snd_ac97_ad198x_spdif_source_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
        static char *texts[2] = { "AC-Link", "A/D Converter" };

        uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
        uinfo->count = 1;
        uinfo->value.enumerated.items = 2;
        if (uinfo->value.enumerated.item > 1)
                uinfo->value.enumerated.item = 1;
        strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
        return 0;
}

static int snd_ac97_ad198x_spdif_source_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
        unsigned short val;

        val = ac97->regs[AC97_AD_SERIAL_CFG];
        ucontrol->value.enumerated.item[0] = (val >> 2) & 1;
        return 0;
}

static int snd_ac97_ad198x_spdif_source_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
        unsigned short val;

        if (ucontrol->value.enumerated.item[0] > 1)
                return -EINVAL;
        val = ucontrol->value.enumerated.item[0] << 2;
        return snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x0004, val);
}

static const struct snd_kcontrol_new snd_ac97_ad198x_spdif_source = {
        .iface  = SNDRV_CTL_ELEM_IFACE_MIXER,
        .name   = SNDRV_CTL_NAME_IEC958("",PLAYBACK,NONE) "Source",
        .info   = snd_ac97_ad198x_spdif_source_info,
        .get    = snd_ac97_ad198x_spdif_source_get,
        .put    = snd_ac97_ad198x_spdif_source_put,
};

static int patch_ad198x_post_spdif(struct snd_ac97 * ac97)
{
        return patch_build_controls(ac97, &snd_ac97_ad198x_spdif_source, 1);
}

static const struct snd_kcontrol_new snd_ac97_ad1981x_jack_sense[] = {
        AC97_SINGLE("Headphone Jack Sense", AC97_AD_JACK_SPDIF, 11, 1, 0),
        AC97_SINGLE("Line Jack Sense", AC97_AD_JACK_SPDIF, 12, 1, 0),
};

/* black list to avoid HP/Line jack-sense controls
 * (SS vendor << 16 | device)
 */
static unsigned int ad1981_jacks_blacklist[] = {
        0x10140537, /* Thinkpad T41p */
        0x10140554, /* Thinkpad T42p/R50p */
        0 /* end */
};

static int check_list(struct snd_ac97 *ac97, const unsigned int *list)
{
        u32 subid = ((u32)ac97->subsystem_vendor << 16) | ac97->subsystem_device;
        for (; *list; list++)
                if (*list == subid)
                        return 1;
        return 0;
}

static int patch_ad1981a_specific(struct snd_ac97 * ac97)
{
        if (check_list(ac97, ad1981_jacks_blacklist))
                return 0;
        return patch_build_controls(ac97, snd_ac97_ad1981x_jack_sense,
                                    ARRAY_SIZE(snd_ac97_ad1981x_jack_sense));
}

static struct snd_ac97_build_ops patch_ad1981a_build_ops = {
        .build_post_spdif = patch_ad198x_post_spdif,
        .build_specific = patch_ad1981a_specific,
#ifdef CONFIG_PM
        .resume = ad18xx_resume
#endif
};

/* white list to enable HP jack-sense bits
 * (SS vendor << 16 | device)
 */
static unsigned int ad1981_jacks_whitelist[] = {
        0x0e11005a, /* HP nc4000/4010 */
        0x103c0890, /* HP nc6000 */
        0x103c0938, /* HP nc4220 */
        0x103c099c, /* HP nx6110 */
        0x103c0944, /* HP nc6220 */
        0x103c0934, /* HP nc8220 */
        0x103c006d, /* HP nx9105 */
        0x17340088, /* FSC Scenic-W */
        0 /* end */
};

static void check_ad1981_hp_jack_sense(struct snd_ac97 *ac97)
{
        if (check_list(ac97, ad1981_jacks_whitelist))
                /* enable headphone jack sense */
                snd_ac97_update_bits(ac97, AC97_AD_JACK_SPDIF, 1<<11, 1<<11);
}

int patch_ad1981a(struct snd_ac97 *ac97)
{
        patch_ad1881(ac97);
        ac97->build_ops = &patch_ad1981a_build_ops;
        snd_ac97_update_bits(ac97, AC97_AD_MISC, AC97_AD198X_MSPLT, AC97_AD198X_MSPLT);
        ac97->flags |= AC97_STEREO_MUTES;
        check_ad1981_hp_jack_sense(ac97);
        return 0;
}

static const struct snd_kcontrol_new snd_ac97_ad198x_2cmic =
AC97_SINGLE("Stereo Mic", AC97_AD_MISC, 6, 1, 0);

static int patch_ad1981b_specific(struct snd_ac97 *ac97)
{
        int err;

        if ((err = patch_build_controls(ac97, &snd_ac97_ad198x_2cmic, 1)) < 0)
                return err;
        if (check_list(ac97, ad1981_jacks_blacklist))
                return 0;
        return patch_build_controls(ac97, snd_ac97_ad1981x_jack_sense,
                                    ARRAY_SIZE(snd_ac97_ad1981x_jack_sense));
}

static struct snd_ac97_build_ops patch_ad1981b_build_ops = {
        .build_post_spdif = patch_ad198x_post_spdif,
        .build_specific = patch_ad1981b_specific,
#ifdef CONFIG_PM
        .resume = ad18xx_resume
#endif
};

int patch_ad1981b(struct snd_ac97 *ac97)
{
        patch_ad1881(ac97);
        ac97->build_ops = &patch_ad1981b_build_ops;
        snd_ac97_update_bits(ac97, AC97_AD_MISC, AC97_AD198X_MSPLT, AC97_AD198X_MSPLT);
        ac97->flags |= AC97_STEREO_MUTES;
        check_ad1981_hp_jack_sense(ac97);
        return 0;
}

static int snd_ac97_ad1888_lohpsel_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
        uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
        uinfo->count = 1;
        uinfo->value.integer.min = 0;
        uinfo->value.integer.max = 1;
        return 0;
}

static int snd_ac97_ad1888_lohpsel_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
        unsigned short val;

        val = ac97->regs[AC97_AD_MISC];
        ucontrol->value.integer.value[0] = !(val & AC97_AD198X_LOSEL);
        return 0;
}

static int snd_ac97_ad1888_lohpsel_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
        unsigned short val;

        val = !ucontrol->value.integer.value[0]
                ? (AC97_AD198X_LOSEL | AC97_AD198X_HPSEL) : 0;
        return snd_ac97_update_bits(ac97, AC97_AD_MISC,
                                    AC97_AD198X_LOSEL | AC97_AD198X_HPSEL, val);
}

static int snd_ac97_ad1888_downmix_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
        static char *texts[3] = {"Off", "6 -> 4", "6 -> 2"};

        uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
        uinfo->count = 1;
        uinfo->value.enumerated.items = 3;
        if (uinfo->value.enumerated.item > 2)
                uinfo->value.enumerated.item = 2;
        strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
        return 0;
}

static int snd_ac97_ad1888_downmix_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
        unsigned short val;

        val = ac97->regs[AC97_AD_MISC];
        if (!(val & AC97_AD198X_DMIX1))
                ucontrol->value.enumerated.item[0] = 0;
        else
                ucontrol->value.enumerated.item[0] = 1 + ((val >> 8) & 1);
        return 0;
}

static int snd_ac97_ad1888_downmix_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
        unsigned short val;

        if (ucontrol->value.enumerated.item[0] > 2)
                return -EINVAL;
        if (ucontrol->value.enumerated.item[0] == 0)
                val = 0;
        else
                val = AC97_AD198X_DMIX1 |
                        ((ucontrol->value.enumerated.item[0] - 1) << 8);
        return snd_ac97_update_bits(ac97, AC97_AD_MISC,
                                    AC97_AD198X_DMIX0 | AC97_AD198X_DMIX1, val);
}

static void ad1888_update_jacks(struct snd_ac97 *ac97)
{
        unsigned short val = 0;
        if (! is_shared_linein(ac97))
                val |= (1 << 12);
        if (! is_shared_micin(ac97))
                val |= (1 << 11);
        /* shared Line-In */
        snd_ac97_update_bits(ac97, AC97_AD_MISC, (1 << 11) | (1 << 12), val);
}

static const struct snd_kcontrol_new snd_ac97_ad1888_controls[] = {
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
                .name = "Exchange Front/Surround",
                .info = snd_ac97_ad1888_lohpsel_info,
                .get = snd_ac97_ad1888_lohpsel_get,
                .put = snd_ac97_ad1888_lohpsel_put
        },
        AC97_SINGLE("V_REFOUT Enable", AC97_AD_MISC, 2, 1, 1),
        AC97_SINGLE("High Pass Filter Enable", AC97_AD_TEST2, 12, 1, 1),
        AC97_SINGLE("Spread Front to Surround and Center/LFE", AC97_AD_MISC, 7, 1, 0),
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
                .name = "Downmix",
                .info = snd_ac97_ad1888_downmix_info,
                .get = snd_ac97_ad1888_downmix_get,
                .put = snd_ac97_ad1888_downmix_put
        },
        AC97_SURROUND_JACK_MODE_CTL,
        AC97_CHANNEL_MODE_CTL,

        AC97_SINGLE("Headphone Jack Sense", AC97_AD_JACK_SPDIF, 10, 1, 0),
        AC97_SINGLE("Line Jack Sense", AC97_AD_JACK_SPDIF, 12, 1, 0),
};

static int patch_ad1888_specific(struct snd_ac97 *ac97)
{
        /* rename 0x04 as "Master" and 0x02 as "Master Surround" */
        snd_ac97_rename_vol_ctl(ac97, "Master Playback", "Master Surround Playback");
        snd_ac97_rename_vol_ctl(ac97, "Headphone Playback", "Master Playback");
        return patch_build_controls(ac97, snd_ac97_ad1888_controls, ARRAY_SIZE(snd_ac97_ad1888_controls));
}

static struct snd_ac97_build_ops patch_ad1888_build_ops = {
        .build_post_spdif = patch_ad198x_post_spdif,
        .build_specific = patch_ad1888_specific,
#ifdef CONFIG_PM
        .resume = ad1888_resume,
#endif
        .update_jacks = ad1888_update_jacks,
};

int patch_ad1888(struct snd_ac97 * ac97)
{
        unsigned short misc;
        
        patch_ad1881(ac97);
        ac97->build_ops = &patch_ad1888_build_ops;
        /* Switch FRONT/SURROUND LINE-OUT/HP-OUT default connection */
        /* it seems that most vendors connect line-out connector to headphone out of AC'97 */
        /* AD-compatible mode */
        /* Stereo mutes enabled */
        misc = snd_ac97_read(ac97, AC97_AD_MISC);
        snd_ac97_write_cache(ac97, AC97_AD_MISC, misc |
                             AC97_AD198X_LOSEL |
                             AC97_AD198X_HPSEL |
                             AC97_AD198X_MSPLT |
                             AC97_AD198X_AC97NC);
        ac97->flags |= AC97_STEREO_MUTES;
        return 0;
}

static int patch_ad1980_specific(struct snd_ac97 *ac97)
{
        int err;

        if ((err = patch_ad1888_specific(ac97)) < 0)
                return err;
        return patch_build_controls(ac97, &snd_ac97_ad198x_2cmic, 1);
}

static struct snd_ac97_build_ops patch_ad1980_build_ops = {
        .build_post_spdif = patch_ad198x_post_spdif,
        .build_specific = patch_ad1980_specific,
#ifdef CONFIG_PM
        .resume = ad18xx_resume,
#endif
        .update_jacks = ad1888_update_jacks,
};

int patch_ad1980(struct snd_ac97 * ac97)
{
        patch_ad1888(ac97);
        ac97->build_ops = &patch_ad1980_build_ops;
        return 0;
}

static const struct snd_kcontrol_new snd_ac97_ad1985_controls[] = {
        AC97_SINGLE("Exchange Center/LFE", AC97_AD_SERIAL_CFG, 3, 1, 0)
};

static void ad1985_update_jacks(struct snd_ac97 *ac97)
{
        ad1888_update_jacks(ac97);
        snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 1 << 9,
                             is_shared_micin(ac97) ? 0 : 1 << 9);
}

static int patch_ad1985_specific(struct snd_ac97 *ac97)
{
        int err;

        if ((err = patch_ad1980_specific(ac97)) < 0)
                return err;
        return patch_build_controls(ac97, snd_ac97_ad1985_controls, ARRAY_SIZE(snd_ac97_ad1985_controls));
}

static struct snd_ac97_build_ops patch_ad1985_build_ops = {
        .build_post_spdif = patch_ad198x_post_spdif,
        .build_specific = patch_ad1985_specific,
#ifdef CONFIG_PM
        .resume = ad18xx_resume,
#endif
        .update_jacks = ad1985_update_jacks,
};

int patch_ad1985(struct snd_ac97 * ac97)
{
        unsigned short misc;
        
        patch_ad1881(ac97);
        ac97->build_ops = &patch_ad1985_build_ops;
        misc = snd_ac97_read(ac97, AC97_AD_MISC);
        /* switch front/surround line-out/hp-out */
        /* center/LFE, mic in 3.75V mode */
        /* AD-compatible mode */
        /* Stereo mutes enabled */
        /* in accordance with ADI driver: misc | 0x5c28 */
        snd_ac97_write_cache(ac97, AC97_AD_MISC, misc |
                             AC97_AD198X_VREFH |
                             AC97_AD198X_LOSEL |
                             AC97_AD198X_HPSEL |
                             AC97_AD198X_CLDIS |
                             AC97_AD198X_LODIS |
                             AC97_AD198X_MSPLT |
                             AC97_AD198X_AC97NC);
        ac97->flags |= AC97_STEREO_MUTES;
        /* on AD1985 rev. 3, AC'97 revision bits are zero */
        ac97->ext_id = (ac97->ext_id & ~AC97_EI_REV_MASK) | AC97_EI_REV_23;
        return 0;
}

/*
 * realtek ALC65x/850 codecs
 */
static void alc650_update_jacks(struct snd_ac97 *ac97)
{
        int shared;
        
        /* shared Line-In */
        shared = is_shared_linein(ac97);
        snd_ac97_update_bits(ac97, AC97_ALC650_MULTICH, 1 << 9,
                             shared ? (1 << 9) : 0);
        /* update shared Mic */
        shared = is_shared_micin(ac97);
        /* disable/enable vref */
        snd_ac97_update_bits(ac97, AC97_ALC650_CLOCK, 1 << 12,
                             shared ? (1 << 12) : 0);
        /* turn on/off center-on-mic */
        snd_ac97_update_bits(ac97, AC97_ALC650_MULTICH, 1 << 10,
                             shared ? (1 << 10) : 0);
        /* GPIO0 high for mic */
        snd_ac97_update_bits(ac97, AC97_ALC650_GPIO_STATUS, 0x100,
                             shared ? 0 : 0x100);
}

static const struct snd_kcontrol_new snd_ac97_controls_alc650[] = {
        AC97_SINGLE("Duplicate Front", AC97_ALC650_MULTICH, 0, 1, 0),
        AC97_SINGLE("Surround Down Mix", AC97_ALC650_MULTICH, 1, 1, 0),
        AC97_SINGLE("Center/LFE Down Mix", AC97_ALC650_MULTICH, 2, 1, 0),
        AC97_SINGLE("Exchange Center/LFE", AC97_ALC650_MULTICH, 3, 1, 0),
        /* 4: Analog Input To Surround */
        /* 5: Analog Input To Center/LFE */
        /* 6: Independent Master Volume Right */
        /* 7: Independent Master Volume Left */
        /* 8: reserved */
        /* 9: Line-In/Surround share */
        /* 10: Mic/CLFE share */
        /* 11-13: in IEC958 controls */
        AC97_SINGLE("Swap Surround Slot", AC97_ALC650_MULTICH, 14, 1, 0),
#if 0 /* always set in patch_alc650 */
        AC97_SINGLE("IEC958 Input Clock Enable", AC97_ALC650_CLOCK, 0, 1, 0),
        AC97_SINGLE("IEC958 Input Pin Enable", AC97_ALC650_CLOCK, 1, 1, 0),
        AC97_SINGLE("Surround DAC Switch", AC97_ALC650_SURR_DAC_VOL, 15, 1, 1),
        AC97_DOUBLE("Surround DAC Volume", AC97_ALC650_SURR_DAC_VOL, 8, 0, 31, 1),
        AC97_SINGLE("Center/LFE DAC Switch", AC97_ALC650_LFE_DAC_VOL, 15, 1, 1),
        AC97_DOUBLE("Center/LFE DAC Volume", AC97_ALC650_LFE_DAC_VOL, 8, 0, 31, 1),
#endif
        AC97_SURROUND_JACK_MODE_CTL,
        AC97_CHANNEL_MODE_CTL,
};

static const struct snd_kcontrol_new snd_ac97_spdif_controls_alc650[] = {
        AC97_SINGLE(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), AC97_ALC650_MULTICH, 11, 1, 0),
        AC97_SINGLE("Analog to IEC958 Output", AC97_ALC650_MULTICH, 12, 1, 0),
        /* disable this controls since it doesn't work as expected */
        /* AC97_SINGLE("IEC958 Input Monitor", AC97_ALC650_MULTICH, 13, 1, 0), */
};

static DECLARE_TLV_DB_SCALE(db_scale_5bit_3db_max, -4350, 150, 0);

static int patch_alc650_specific(struct snd_ac97 * ac97)
{
        int err;

        if ((err = patch_build_controls(ac97, snd_ac97_controls_alc650, ARRAY_SIZE(snd_ac97_controls_alc650))) < 0)
                return err;
        if (ac97->ext_id & AC97_EI_SPDIF) {
                if ((err = patch_build_controls(ac97, snd_ac97_spdif_controls_alc650, ARRAY_SIZE(snd_ac97_spdif_controls_alc650))) < 0)
                        return err;
        }
        if (ac97->id != AC97_ID_ALC650F)
                reset_tlv(ac97, "Master Playback Volume",
                          db_scale_5bit_3db_max);
        return 0;
}

static struct snd_ac97_build_ops patch_alc650_ops = {
        .build_specific = patch_alc650_specific,
        .update_jacks = alc650_update_jacks
};

int patch_alc650(struct snd_ac97 * ac97)
{
        unsigned short val;

        ac97->build_ops = &patch_alc650_ops;

        /* determine the revision */
        val = snd_ac97_read(ac97, AC97_ALC650_REVISION) & 0x3f;
        if (val < 3)
                ac97->id = 0x414c4720;          /* Old version */
        else if (val < 0x10)
                ac97->id = 0x414c4721;          /* D version */
        else if (val < 0x20)
                ac97->id = 0x414c4722;          /* E version */
        else if (val < 0x30)
                ac97->id = 0x414c4723;          /* F version */

        /* revision E or F */
        /* FIXME: what about revision D ? */
        ac97->spec.dev_flags = (ac97->id == 0x414c4722 ||
                                ac97->id == 0x414c4723);

        /* enable AC97_ALC650_GPIO_SETUP, AC97_ALC650_CLOCK for R/W */
        snd_ac97_write_cache(ac97, AC97_ALC650_GPIO_STATUS, 
                snd_ac97_read(ac97, AC97_ALC650_GPIO_STATUS) | 0x8000);

        /* Enable SPDIF-IN only on Rev.E and above */
        val = snd_ac97_read(ac97, AC97_ALC650_CLOCK);
        /* SPDIF IN with pin 47 */
        if (ac97->spec.dev_flags &&
            /* ASUS A6KM requires EAPD */
            ! (ac97->subsystem_vendor == 0x1043 &&
               ac97->subsystem_device == 0x1103))
                val |= 0x03; /* enable */
        else
                val &= ~0x03; /* disable */
        snd_ac97_write_cache(ac97, AC97_ALC650_CLOCK, val);

        /* set default: slot 3,4,7,8,6,9
           spdif-in monitor off, analog-spdif off, spdif-in off
           center on mic off, surround on line-in off
           downmix off, duplicate front off
        */
        snd_ac97_write_cache(ac97, AC97_ALC650_MULTICH, 0);

        /* set GPIO0 for mic bias */
        /* GPIO0 pin output, no interrupt, high */
        snd_ac97_write_cache(ac97, AC97_ALC650_GPIO_SETUP,
                             snd_ac97_read(ac97, AC97_ALC650_GPIO_SETUP) | 0x01);
        snd_ac97_write_cache(ac97, AC97_ALC650_GPIO_STATUS,
                             (snd_ac97_read(ac97, AC97_ALC650_GPIO_STATUS) | 0x100) & ~0x10);

        /* full DAC volume */
        snd_ac97_write_cache(ac97, AC97_ALC650_SURR_DAC_VOL, 0x0808);
        snd_ac97_write_cache(ac97, AC97_ALC650_LFE_DAC_VOL, 0x0808);
        return 0;
}

static void alc655_update_jacks(struct snd_ac97 *ac97)
{
        int shared;
        
        /* shared Line-In */
        shared = is_shared_linein(ac97);
        ac97_update_bits_page(ac97, AC97_ALC650_MULTICH, 1 << 9,
                              shared ? (1 << 9) : 0, 0);
        /* update shared mic */
        shared = is_shared_micin(ac97);
        /* misc control; vrefout disable */
        snd_ac97_update_bits(ac97, AC97_ALC650_CLOCK, 1 << 12,
                             shared ? (1 << 12) : 0);
        ac97_update_bits_page(ac97, AC97_ALC650_MULTICH, 1 << 10,
                              shared ? (1 << 10) : 0, 0);
}

static const struct snd_kcontrol_new snd_ac97_controls_alc655[] = {
        AC97_PAGE_SINGLE("Duplicate Front", AC97_ALC650_MULTICH, 0, 1, 0, 0),
        AC97_SURROUND_JACK_MODE_CTL,
        AC97_CHANNEL_MODE_CTL,
};

static int alc655_iec958_route_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
        static char *texts_655[3] = { "PCM", "Analog In", "IEC958 In" };
        static char *texts_658[4] = { "PCM", "Analog1 In", "Analog2 In", "IEC958 In" };
        struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);

        uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
        uinfo->count = 1;
        uinfo->value.enumerated.items = ac97->spec.dev_flags ? 4 : 3;
        if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
                uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
        strcpy(uinfo->value.enumerated.name,
               ac97->spec.dev_flags ?
               texts_658[uinfo->value.enumerated.item] :
               texts_655[uinfo->value.enumerated.item]);
        return 0;
}

static int alc655_iec958_route_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
        unsigned short val;

        val = ac97->regs[AC97_ALC650_MULTICH];
        val = (val >> 12) & 3;
        if (ac97->spec.dev_flags && val == 3)
                val = 0;
        ucontrol->value.enumerated.item[0] = val;
        return 0;
}

static int alc655_iec958_route_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);

        return ac97_update_bits_page(ac97, AC97_ALC650_MULTICH, 3 << 12,
                                     (unsigned short)ucontrol->value.enumerated.item[0] << 12,
                                     0);
}

static const struct snd_kcontrol_new snd_ac97_spdif_controls_alc655[] = {
        AC97_PAGE_SINGLE(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), AC97_ALC650_MULTICH, 11, 1, 0, 0),
        /* disable this controls since it doesn't work as expected */
        /* AC97_PAGE_SINGLE("IEC958 Input Monitor", AC97_ALC650_MULTICH, 14, 1, 0, 0), */
        {
                .iface  = SNDRV_CTL_ELEM_IFACE_MIXER,
                .name   = SNDRV_CTL_NAME_IEC958("",PLAYBACK,NONE) "Source",
                .info   = alc655_iec958_route_info,
                .get    = alc655_iec958_route_get,
                .put    = alc655_iec958_route_put,
        },
};

static int patch_alc655_specific(struct snd_ac97 * ac97)
{
        int err;

        if ((err = patch_build_controls(ac97, snd_ac97_controls_alc655, ARRAY_SIZE(snd_ac97_controls_alc655))) < 0)
                return err;
        if (ac97->ext_id & AC97_EI_SPDIF) {
                if ((err = patch_build_controls(ac97, snd_ac97_spdif_controls_alc655, ARRAY_SIZE(snd_ac97_spdif_controls_alc655))) < 0)
                        return err;
        }
        return 0;
}

static struct snd_ac97_build_ops patch_alc655_ops = {
        .build_specific = patch_alc655_specific,
        .update_jacks = alc655_update_jacks
};

int patch_alc655(struct snd_ac97 * ac97)
{
        unsigned int val;

        if (ac97->id == AC97_ID_ALC658) {
                ac97->spec.dev_flags = 1; /* ALC658 */
                if ((snd_ac97_read(ac97, AC97_ALC650_REVISION) & 0x3f) == 2) {
                        ac97->id = AC97_ID_ALC658D;
                        ac97->spec.dev_flags = 2;
                }
        }

        ac97->build_ops = &patch_alc655_ops;

        /* assume only page 0 for writing cache */
        snd_ac97_update_bits(ac97, AC97_INT_PAGING, AC97_PAGE_MASK, AC97_PAGE_VENDOR);

        /* adjust default values */
        val = snd_ac97_read(ac97, 0x7a); /* misc control */
        if (ac97->spec.dev_flags) /* ALC658 */
                val &= ~(1 << 1); /* Pin 47 is spdif input pin */
        else { /* ALC655 */
                if (ac97->subsystem_vendor == 0x1462 &&
                    (ac97->subsystem_device == 0x0131 || /* MSI S270 laptop */
                     ac97->subsystem_device == 0x0161)) /* LG K1 Express */
                        val &= ~(1 << 1); /* Pin 47 is EAPD (for internal speaker) */
                else
                        val |= (1 << 1); /* Pin 47 is spdif input pin */
        }
        val &= ~(1 << 12); /* vref enable */
        snd_ac97_write_cache(ac97, 0x7a, val);
        /* set default: spdif-in enabled,
           spdif-in monitor off, spdif-in PCM off
           center on mic off, surround on line-in off
           duplicate front off
        */
        snd_ac97_write_cache(ac97, AC97_ALC650_MULTICH, 1<<15);

        /* full DAC volume */
        snd_ac97_write_cache(ac97, AC97_ALC650_SURR_DAC_VOL, 0x0808);
        snd_ac97_write_cache(ac97, AC97_ALC650_LFE_DAC_VOL, 0x0808);

        /* update undocumented bit... */
        if (ac97->id == AC97_ID_ALC658D)
                snd_ac97_update_bits(ac97, 0x74, 0x0800, 0x0800);

        return 0;
}


#define AC97_ALC850_JACK_SELECT 0x76
#define AC97_ALC850_MISC1       0x7a

static void alc850_update_jacks(struct snd_ac97 *ac97)
{
        int shared;
        
        /* shared Line-In */
        shared = is_shared_linein(ac97);
        /* SURR 1kOhm (bit4), Amp (bit5) */
        snd_ac97_update_bits(ac97, AC97_ALC850_MISC1, (1<<4)|(1<<5),
                             shared ? (1<<5) : (1<<4));
        /* LINE-IN = 0, SURROUND = 2 */
        snd_ac97_update_bits(ac97, AC97_ALC850_JACK_SELECT, 7 << 12,
                             shared ? (2<<12) : (0<<12));
        /* update shared mic */
        shared = is_shared_micin(ac97);
        /* Vref disable (bit12), 1kOhm (bit13) */
        snd_ac97_update_bits(ac97, AC97_ALC850_MISC1, (1<<12)|(1<<13),
                             shared ? (1<<12) : (1<<13));
        /* MIC-IN = 1, CENTER-LFE = 5 */
        snd_ac97_update_bits(ac97, AC97_ALC850_JACK_SELECT, 7 << 4,
                             shared ? (5<<4) : (1<<4));
}

static const struct snd_kcontrol_new snd_ac97_controls_alc850[] = {
        AC97_PAGE_SINGLE("Duplicate Front", AC97_ALC650_MULTICH, 0, 1, 0, 0),
        AC97_SINGLE("Mic Front Input Switch", AC97_ALC850_JACK_SELECT, 15, 1, 1),
        AC97_SURROUND_JACK_MODE_CTL,
        AC97_CHANNEL_MODE_CTL,
};

static int patch_alc850_specific(struct snd_ac97 *ac97)
{
        int err;

        if ((err = patch_build_controls(ac97, snd_ac97_controls_alc850, ARRAY_SIZE(snd_ac97_controls_alc850))) < 0)
                return err;
        if (ac97->ext_id & AC97_EI_SPDIF) {
                if ((err = patch_build_controls(ac97, snd_ac97_spdif_controls_alc655, ARRAY_SIZE(snd_ac97_spdif_controls_alc655))) < 0)
                        return err;
        }
        return 0;
}

static struct snd_ac97_build_ops patch_alc850_ops = {
        .build_specific = patch_alc850_specific,
        .update_jacks = alc850_update_jacks
};

int patch_alc850(struct snd_ac97 *ac97)
{
        ac97->build_ops = &patch_alc850_ops;

        ac97->spec.dev_flags = 0; /* for IEC958 playback route - ALC655 compatible */

        /* assume only page 0 for writing cache */
        snd_ac97_update_bits(ac97, AC97_INT_PAGING, AC97_PAGE_MASK, AC97_PAGE_VENDOR);

        /* adjust default values */
        /* set default: spdif-in enabled,
           spdif-in monitor off, spdif-in PCM off
           center on mic off, surround on line-in off
           duplicate front off
        */
        snd_ac97_write_cache(ac97, AC97_ALC650_MULTICH, 1<<15);
        /* SURR_OUT: on, Surr 1kOhm: on, Surr Amp: off, Front 1kOhm: off
         * Front Amp: on, Vref: enable, Center 1kOhm: on, Mix: on
         */
        snd_ac97_write_cache(ac97, 0x7a, (1<<1)|(1<<4)|(0<<5)|(1<<6)|
                             (1<<7)|(0<<12)|(1<<13)|(0<<14));
        /* detection UIO2,3: all path floating, UIO3: MIC, Vref2: disable,
         * UIO1: FRONT, Vref3: disable, UIO3: LINE, Front-Mic: mute
         */
        snd_ac97_write_cache(ac97, 0x76, (0<<0)|(0<<2)|(1<<4)|(1<<7)|(2<<8)|
                             (1<<11)|(0<<12)|(1<<15));

        /* full DAC volume */
        snd_ac97_write_cache(ac97, AC97_ALC650_SURR_DAC_VOL, 0x0808);
        snd_ac97_write_cache(ac97, AC97_ALC650_LFE_DAC_VOL, 0x0808);
        return 0;
}


/*
 * C-Media CM97xx codecs
 */
static void cm9738_update_jacks(struct snd_ac97 *ac97)
{
        /* shared Line-In */
        snd_ac97_update_bits(ac97, AC97_CM9738_VENDOR_CTRL, 1 << 10,
                             is_shared_linein(ac97) ? (1 << 10) : 0);
}

static const struct snd_kcontrol_new snd_ac97_cm9738_controls[] = {
        AC97_SINGLE("Duplicate Front", AC97_CM9738_VENDOR_CTRL, 13, 1, 0),
        AC97_SURROUND_JACK_MODE_CTL,
        AC97_CHANNEL_MODE_4CH_CTL,
};

static int patch_cm9738_specific(struct snd_ac97 * ac97)
{
        return patch_build_controls(ac97, snd_ac97_cm9738_controls, ARRAY_SIZE(snd_ac97_cm9738_controls));
}

static struct snd_ac97_build_ops patch_cm9738_ops = {
        .build_specific = patch_cm9738_specific,
        .update_jacks = cm9738_update_jacks
};

int patch_cm9738(struct snd_ac97 * ac97)
{
        ac97->build_ops = &patch_cm9738_ops;
        /* FIXME: can anyone confirm below? */
        /* CM9738 has no PCM volume although the register reacts */
        ac97->flags |= AC97_HAS_NO_PCM_VOL;
        snd_ac97_write_cache(ac97, AC97_PCM, 0x8000);

        return 0;
}

static int snd_ac97_cmedia_spdif_playback_source_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
        static char *texts[] = { "Analog", "Digital" };

        uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
        uinfo->count = 1;
        uinfo->value.enumerated.items = 2;
        if (uinfo->value.enumerated.item > 1)
                uinfo->value.enumerated.item = 1;
        strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
        return 0;
}

static int snd_ac97_cmedia_spdif_playback_source_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
        unsigned short val;

        val = ac97->regs[AC97_CM9739_SPDIF_CTRL];
        ucontrol->value.enumerated.item[0] = (val >> 1) & 0x01;
        return 0;
}

static int snd_ac97_cmedia_spdif_playback_source_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);

        return snd_ac97_update_bits(ac97, AC97_CM9739_SPDIF_CTRL,
                                    0x01 << 1, 
                                    (ucontrol->value.enumerated.item[0] & 0x01) << 1);
}

static const struct snd_kcontrol_new snd_ac97_cm9739_controls_spdif[] = {
        /* BIT 0: SPDI_EN - always true */
        { /* BIT 1: SPDIFS */
                .iface  = SNDRV_CTL_ELEM_IFACE_MIXER,
                .name   = SNDRV_CTL_NAME_IEC958("",PLAYBACK,NONE) "Source",
                .info   = snd_ac97_cmedia_spdif_playback_source_info,
                .get    = snd_ac97_cmedia_spdif_playback_source_get,
                .put    = snd_ac97_cmedia_spdif_playback_source_put,
        },
        /* BIT 2: IG_SPIV */
        AC97_SINGLE(SNDRV_CTL_NAME_IEC958("",CAPTURE,NONE) "Valid Switch", AC97_CM9739_SPDIF_CTRL, 2, 1, 0),
        /* BIT 3: SPI2F */
        AC97_SINGLE(SNDRV_CTL_NAME_IEC958("",CAPTURE,NONE) "Monitor", AC97_CM9739_SPDIF_CTRL, 3, 1, 0), 
        /* BIT 4: SPI2SDI */
        AC97_SINGLE(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), AC97_CM9739_SPDIF_CTRL, 4, 1, 0),
        /* BIT 8: SPD32 - 32bit SPDIF - not supported yet */
};

static void cm9739_update_jacks(struct snd_ac97 *ac97)
{
        /* shared Line-In */
        snd_ac97_update_bits(ac97, AC97_CM9739_MULTI_CHAN, 1 << 10,
                             is_shared_linein(ac97) ? (1 << 10) : 0);
        /* shared Mic */
        snd_ac97_update_bits(ac97, AC97_CM9739_MULTI_CHAN, 0x3000,
                             is_shared_micin(ac97) ? 0x1000 : 0x2000);
}

static const struct snd_kcontrol_new snd_ac97_cm9739_controls[] = {
        AC97_SURROUND_JACK_MODE_CTL,
        AC97_CHANNEL_MODE_CTL,
};

static int patch_cm9739_specific(struct snd_ac97 * ac97)
{
        return patch_build_controls(ac97, snd_ac97_cm9739_controls, ARRAY_SIZE(snd_ac97_cm9739_controls));
}

static int patch_cm9739_post_spdif(struct snd_ac97 * ac97)
{
        return patch_build_controls(ac97, snd_ac97_cm9739_controls_spdif, ARRAY_SIZE(snd_ac97_cm9739_controls_spdif));
}

static struct snd_ac97_build_ops patch_cm9739_ops = {
        .build_specific = patch_cm9739_specific,
        .build_post_spdif = patch_cm9739_post_spdif,
        .update_jacks = cm9739_update_jacks
};

int patch_cm9739(struct snd_ac97 * ac97)
{
        unsigned short val;

        ac97->build_ops = &patch_cm9739_ops;

        /* CM9739/A has no Master and PCM volume although the register reacts */
        ac97->flags |= AC97_HAS_NO_MASTER_VOL | AC97_HAS_NO_PCM_VOL;
        snd_ac97_write_cache(ac97, AC97_MASTER, 0x8000);
        snd_ac97_write_cache(ac97, AC97_PCM, 0x8000);

        /* check spdif */
        val = snd_ac97_read(ac97, AC97_EXTENDED_STATUS);
        if (val & AC97_EA_SPCV) {
                /* enable spdif in */
                snd_ac97_write_cache(ac97, AC97_CM9739_SPDIF_CTRL,
                                     snd_ac97_read(ac97, AC97_CM9739_SPDIF_CTRL) | 0x01);
                ac97->rates[AC97_RATES_SPDIF] = SNDRV_PCM_RATE_48000; /* 48k only */
        } else {
                ac97->ext_id &= ~AC97_EI_SPDIF; /* disable extended-id */
                ac97->rates[AC97_RATES_SPDIF] = 0;
        }

        /* set-up multi channel */
        /* bit 14: 0 = SPDIF, 1 = EAPD */
        /* bit 13: enable internal vref output for mic */
        /* bit 12: disable center/lfe (swithable) */
        /* bit 10: disable surround/line (switchable) */
        /* bit 9: mix 2 surround off */
        /* bit 4: undocumented; 0 mutes the CM9739A, which defaults to 1 */
        /* bit 3: undocumented; surround? */
        /* bit 0: dB */
        val = snd_ac97_read(ac97, AC97_CM9739_MULTI_CHAN) & (1 << 4);
        val |= (1 << 3);
        val |= (1 << 13);
        if (! (ac97->ext_id & AC97_EI_SPDIF))
                val |= (1 << 14);
        snd_ac97_write_cache(ac97, AC97_CM9739_MULTI_CHAN, val);

        /* FIXME: set up GPIO */
        snd_ac97_write_cache(ac97, 0x70, 0x0100);
        snd_ac97_write_cache(ac97, 0x72, 0x0020);
        /* Special exception for ASUS W1000/CMI9739. It does not have an SPDIF in. */
        if (ac97->pci &&
             ac97->subsystem_vendor == 0x1043 &&
             ac97->subsystem_device == 0x1843) {
                snd_ac97_write_cache(ac97, AC97_CM9739_SPDIF_CTRL,
                        snd_ac97_read(ac97, AC97_CM9739_SPDIF_CTRL) & ~0x01);
                snd_ac97_write_cache(ac97, AC97_CM9739_MULTI_CHAN,
                        snd_ac97_read(ac97, AC97_CM9739_MULTI_CHAN) | (1 << 14));
        }

        return 0;
}

#define AC97_CM9761_MULTI_CHAN  0x64
#define AC97_CM9761_FUNC        0x66
#define AC97_CM9761_SPDIF_CTRL  0x6c

static void cm9761_update_jacks(struct snd_ac97 *ac97)
{
        /* FIXME: check the bits for each model
         *        model 83 is confirmed to work
         */
        static unsigned short surr_on[3][2] = {
                { 0x0008, 0x0000 }, /* 9761-78 & 82 */
                { 0x0000, 0x0008 }, /* 9761-82 rev.B */
                { 0x0000, 0x0008 }, /* 9761-83 */
        };
        static unsigned short clfe_on[3][2] = {
                { 0x0000, 0x1000 }, /* 9761-78 & 82 */
                { 0x1000, 0x0000 }, /* 9761-82 rev.B */
                { 0x0000, 0x1000 }, /* 9761-83 */
        };
        static unsigned short surr_shared[3][2] = {
                { 0x0000, 0x0400 }, /* 9761-78 & 82 */
                { 0x0000, 0x0400 }, /* 9761-82 rev.B */
                { 0x0000, 0x0400 }, /* 9761-83 */
        };
        static unsigned short clfe_shared[3][2] = {
                { 0x2000, 0x0880 }, /* 9761-78 & 82 */
                { 0x0000, 0x2880 }, /* 9761-82 rev.B */
                { 0x2000, 0x0800 }, /* 9761-83 */
        };
        unsigned short val = 0;

        val |= surr_on[ac97->spec.dev_flags][is_surround_on(ac97)];
        val |= clfe_on[ac97->spec.dev_flags][is_clfe_on(ac97)];
        val |= surr_shared[ac97->spec.dev_flags][is_shared_linein(ac97)];
        val |= clfe_shared[ac97->spec.dev_flags][is_shared_micin(ac97)];

        snd_ac97_update_bits(ac97, AC97_CM9761_MULTI_CHAN, 0x3c88, val);
}

static const struct snd_kcontrol_new snd_ac97_cm9761_controls[] = {
        AC97_SURROUND_JACK_MODE_CTL,
        AC97_CHANNEL_MODE_CTL,
};

static int cm9761_spdif_out_source_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
        static char *texts[] = { "AC-Link", "ADC", "SPDIF-In" };

        uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
        uinfo->count = 1;
        uinfo->value.enumerated.items = 3;
        if (uinfo->value.enumerated.item > 2)
                uinfo->value.enumerated.item = 2;
        strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
        return 0;
}

static int cm9761_spdif_out_source_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);

        if (ac97->regs[AC97_CM9761_FUNC] & 0x1)
                ucontrol->value.enumerated.item[0] = 2; /* SPDIF-loopback */
        else if (ac97->regs[AC97_CM9761_SPDIF_CTRL] & 0x2)
                ucontrol->value.enumerated.item[0] = 1; /* ADC loopback */
        else
                ucontrol->value.enumerated.item[0] = 0; /* AC-link */
        return 0;
}

static int cm9761_spdif_out_source_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);

        if (ucontrol->value.enumerated.item[0] == 2)
                return snd_ac97_update_bits(ac97, AC97_CM9761_FUNC, 0x1, 0x1);
        snd_ac97_update_bits(ac97, AC97_CM9761_FUNC, 0x1, 0);
        return snd_ac97_update_bits(ac97, AC97_CM9761_SPDIF_CTRL, 0x2,
                                    ucontrol->value.enumerated.item[0] == 1 ? 0x2 : 0);
}

static const char *cm9761_dac_clock[] = { "AC-Link", "SPDIF-In", "Both" };
static const struct ac97_enum cm9761_dac_clock_enum =
        AC97_ENUM_SINGLE(AC97_CM9761_SPDIF_CTRL, 9, 3, cm9761_dac_clock);

static const struct snd_kcontrol_new snd_ac97_cm9761_controls_spdif[] = {
        { /* BIT 1: SPDIFS */
                .iface  = SNDRV_CTL_ELEM_IFACE_MIXER,
                .name   = SNDRV_CTL_NAME_IEC958("",PLAYBACK,NONE) "Source",
                .info = cm9761_spdif_out_source_info,
                .get = cm9761_spdif_out_source_get,
                .put = cm9761_spdif_out_source_put,
        },
        /* BIT 2: IG_SPIV */
        AC97_SINGLE(SNDRV_CTL_NAME_IEC958("",CAPTURE,NONE) "Valid Switch", AC97_CM9761_SPDIF_CTRL, 2, 1, 0),
        /* BIT 3: SPI2F */
        AC97_SINGLE(SNDRV_CTL_NAME_IEC958("",CAPTURE,NONE) "Monitor", AC97_CM9761_SPDIF_CTRL, 3, 1, 0), 
        /* BIT 4: SPI2SDI */
        AC97_SINGLE(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), AC97_CM9761_SPDIF_CTRL, 4, 1, 0),
        /* BIT 9-10: DAC_CTL */
        AC97_ENUM("DAC Clock Source", cm9761_dac_clock_enum),
};

static int patch_cm9761_post_spdif(struct snd_ac97 * ac97)
{
        return patch_build_controls(ac97, snd_ac97_cm9761_controls_spdif, ARRAY_SIZE(snd_ac97_cm9761_controls_spdif));
}

static int patch_cm9761_specific(struct snd_ac97 * ac97)
{
        return patch_build_controls(ac97, snd_ac97_cm9761_controls, ARRAY_SIZE(snd_ac97_cm9761_controls));
}

static struct snd_ac97_build_ops patch_cm9761_ops = {
        .build_specific = patch_cm9761_specific,
        .build_post_spdif = patch_cm9761_post_spdif,
        .update_jacks = cm9761_update_jacks
};

int patch_cm9761(struct snd_ac97 *ac97)
{
        unsigned short val;

        /* CM9761 has no PCM volume although the register reacts */
        /* Master volume seems to have _some_ influence on the analog
         * input sounds
         */
        ac97->flags |= /*AC97_HAS_NO_MASTER_VOL |*/ AC97_HAS_NO_PCM_VOL;
        snd_ac97_write_cache(ac97, AC97_MASTER, 0x8808);
        snd_ac97_write_cache(ac97, AC97_PCM, 0x8808);

        ac97->spec.dev_flags = 0; /* 1 = model 82 revision B, 2 = model 83 */
        if (ac97->id == AC97_ID_CM9761_82) {
                unsigned short tmp;
                /* check page 1, reg 0x60 */
                val = snd_ac97_read(ac97, AC97_INT_PAGING);
                snd_ac97_write_cache(ac97, AC97_INT_PAGING, (val & ~0x0f) | 0x01);
                tmp = snd_ac97_read(ac97, 0x60);
                ac97->spec.dev_flags = tmp & 1; /* revision B? */
                snd_ac97_write_cache(ac97, AC97_INT_PAGING, val);
        } else if (ac97->id == AC97_ID_CM9761_83)
                ac97->spec.dev_flags = 2;

        ac97->build_ops = &patch_cm9761_ops;

        /* enable spdif */
        /* force the SPDIF bit in ext_id - codec doesn't set this bit! */
        ac97->ext_id |= AC97_EI_SPDIF;
        /* to be sure: we overwrite the ext status bits */
        snd_ac97_write_cache(ac97, AC97_EXTENDED_STATUS, 0x05c0);
        /* Don't set 0x0200 here.  This results in the silent analog output */
        snd_ac97_write_cache(ac97, AC97_CM9761_SPDIF_CTRL, 0x0001); /* enable spdif-in */
        ac97->rates[AC97_RATES_SPDIF] = SNDRV_PCM_RATE_48000; /* 48k only */

        /* set-up multi channel */
        /* bit 15: pc master beep off
         * bit 14: pin47 = EAPD/SPDIF
         * bit 13: vref ctl [= cm9739]
         * bit 12: CLFE control (reverted on rev B)
         * bit 11: Mic/center share (reverted on rev B)
         * bit 10: suddound/line share
         * bit  9: Analog-in mix -> surround
         * bit  8: Analog-in mix -> CLFE
         * bit  7: Mic/LFE share (mic/center/lfe)
         * bit  5: vref select (9761A)
         * bit  4: front control
         * bit  3: surround control (revereted with rev B)
         * bit  2: front mic
         * bit  1: stereo mic
         * bit  0: mic boost level (0=20dB, 1=30dB)
         */

#if 0
        if (ac97->spec.dev_flags)
                val = 0x0214;
        else
                val = 0x321c;
#endif
        val = snd_ac97_read(ac97, AC97_CM9761_MULTI_CHAN);
        val |= (1 << 4); /* front on */
        snd_ac97_write_cache(ac97, AC97_CM9761_MULTI_CHAN, val);

        /* FIXME: set up GPIO */
        snd_ac97_write_cache(ac97, 0x70, 0x0100);
        snd_ac97_write_cache(ac97, 0x72, 0x0020);

        return 0;
}
       
#define AC97_CM9780_SIDE        0x60
#define AC97_CM9780_JACK        0x62
#define AC97_CM9780_MIXER       0x64
#define AC97_CM9780_MULTI_CHAN  0x66
#define AC97_CM9780_SPDIF       0x6c

static const char *cm9780_ch_select[] = { "Front", "Side", "Center/LFE", "Rear" };
static const struct ac97_enum cm9780_ch_select_enum =
        AC97_ENUM_SINGLE(AC97_CM9780_MULTI_CHAN, 6, 4, cm9780_ch_select);
static const struct snd_kcontrol_new cm9780_controls[] = {
        AC97_DOUBLE("Side Playback Switch", AC97_CM9780_SIDE, 15, 7, 1, 1),
        AC97_DOUBLE("Side Playback Volume", AC97_CM9780_SIDE, 8, 0, 31, 0),
        AC97_ENUM("Side Playback Route", cm9780_ch_select_enum),
};

static int patch_cm9780_specific(struct snd_ac97 *ac97)
{
        return patch_build_controls(ac97, cm9780_controls, ARRAY_SIZE(cm9780_controls));
}

static struct snd_ac97_build_ops patch_cm9780_ops = {
        .build_specific = patch_cm9780_specific,
        .build_post_spdif = patch_cm9761_post_spdif     /* identical with CM9761 */
};

int patch_cm9780(struct snd_ac97 *ac97)
{
        unsigned short val;

        ac97->build_ops = &patch_cm9780_ops;

        /* enable spdif */
        if (ac97->ext_id & AC97_EI_SPDIF) {
                ac97->rates[AC97_RATES_SPDIF] = SNDRV_PCM_RATE_48000; /* 48k only */
                val = snd_ac97_read(ac97, AC97_CM9780_SPDIF);
                val |= 0x1; /* SPDI_EN */
                snd_ac97_write_cache(ac97, AC97_CM9780_SPDIF, val);
        }

        return 0;
}

/*
 * VIA VT1616 codec
 */
static const struct snd_kcontrol_new snd_ac97_controls_vt1616[] = {
AC97_SINGLE("DC Offset removal", 0x5a, 10, 1, 0),
AC97_SINGLE("Alternate Level to Surround Out", 0x5a, 15, 1, 0),
AC97_SINGLE("Downmix LFE and Center to Front", 0x5a, 12, 1, 0),
AC97_SINGLE("Downmix Surround to Front", 0x5a, 11, 1, 0),
};

static int patch_vt1616_specific(struct snd_ac97 * ac97)
{
        int err;

        if (snd_ac97_try_bit(ac97, 0x5a, 9))
                if ((err = patch_build_controls(ac97, &snd_ac97_controls_vt1616[0], 1)) < 0)
                        return err;
        if ((err = patch_build_controls(ac97, &snd_ac97_controls_vt1616[1], ARRAY_SIZE(snd_ac97_controls_vt1616) - 1)) < 0)
                return err;
        return 0;
}

static struct snd_ac97_build_ops patch_vt1616_ops = {
        .build_specific = patch_vt1616_specific
};

int patch_vt1616(struct snd_ac97 * ac97)
{
        ac97->build_ops = &patch_vt1616_ops;
        return 0;
}

/*
 * VT1617A codec
 */
int patch_vt1617a(struct snd_ac97 * ac97)
{
        /* bring analog power consumption to normal, like WinXP driver
         * for EPIA SP
         */
        snd_ac97_write_cache(ac97, 0x5c, 0x20);
        ac97->ext_id |= AC97_EI_SPDIF;  /* force the detection of spdif */
        ac97->rates[AC97_RATES_SPDIF] = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000;
        return 0;
}

/*
 */
static void it2646_update_jacks(struct snd_ac97 *ac97)
{
        /* shared Line-In */
        snd_ac97_update_bits(ac97, 0x76, 1 << 9,
                             is_shared_linein(ac97) ? (1<<9) : 0);
        /* shared Mic */
        snd_ac97_update_bits(ac97, 0x76, 1 << 10,
                             is_shared_micin(ac97) ? (1<<10) : 0);
}

static const struct snd_kcontrol_new snd_ac97_controls_it2646[] = {
        AC97_SURROUND_JACK_MODE_CTL,
        AC97_CHANNEL_MODE_CTL,
};

static const struct snd_kcontrol_new snd_ac97_spdif_controls_it2646[] = {
        AC97_SINGLE(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), 0x76, 11, 1, 0),
        AC97_SINGLE("Analog to IEC958 Output", 0x76, 12, 1, 0),
        AC97_SINGLE("IEC958 Input Monitor", 0x76, 13, 1, 0),
};

static int patch_it2646_specific(struct snd_ac97 * ac97)
{
        int err;
        if ((err = patch_build_controls(ac97, snd_ac97_controls_it2646, ARRAY_SIZE(snd_ac97_controls_it2646))) < 0)
                return err;
        if ((err = patch_build_controls(ac97, snd_ac97_spdif_controls_it2646, ARRAY_SIZE(snd_ac97_spdif_controls_it2646))) < 0)
                return err;
        return 0;
}

static struct snd_ac97_build_ops patch_it2646_ops = {
        .build_specific = patch_it2646_specific,
        .update_jacks = it2646_update_jacks
};

int patch_it2646(struct snd_ac97 * ac97)
{
        ac97->build_ops = &patch_it2646_ops;
        /* full DAC volume */
        snd_ac97_write_cache(ac97, 0x5E, 0x0808);
        snd_ac97_write_cache(ac97, 0x7A, 0x0808);
        return 0;
}

/*
 * Si3036 codec
 */

#define AC97_SI3036_CHIP_ID     0x5a
#define AC97_SI3036_LINE_CFG    0x5c

static const struct snd_kcontrol_new snd_ac97_controls_si3036[] = {
AC97_DOUBLE("Modem Speaker Volume", 0x5c, 14, 12, 3, 1)
};

static int patch_si3036_specific(struct snd_ac97 * ac97)
{
        int idx, err;
        for (idx = 0; idx < ARRAY_SIZE(snd_ac97_controls_si3036); idx++)
                if ((err = snd_ctl_add(ac97->bus->card, snd_ctl_new1(&snd_ac97_controls_si3036[idx], ac97))) < 0)
                        return err;
        return 0;
}

static struct snd_ac97_build_ops patch_si3036_ops = {
        .build_specific = patch_si3036_specific,
};

int mpatch_si3036(struct snd_ac97 * ac97)
{
        ac97->build_ops = &patch_si3036_ops;
        snd_ac97_write_cache(ac97, 0x5c, 0xf210 );
        snd_ac97_write_cache(ac97, 0x68, 0);
        return 0;
}

/*
 * LM 4550 Codec
 *
 * We use a static resolution table since LM4550 codec cannot be
 * properly autoprobed to determine the resolution via
 * check_volume_resolution().
 */

static struct snd_ac97_res_table lm4550_restbl[] = {
        { AC97_MASTER, 0x1f1f },
        { AC97_HEADPHONE, 0x1f1f },
        { AC97_MASTER_MONO, 0x001f },
        { AC97_PC_BEEP, 0x001f },       /* LSB is ignored */
        { AC97_PHONE, 0x001f },
        { AC97_MIC, 0x001f },
        { AC97_LINE, 0x1f1f },
        { AC97_CD, 0x1f1f },
        { AC97_VIDEO, 0x1f1f },
        { AC97_AUX, 0x1f1f },
        { AC97_PCM, 0x1f1f },
        { AC97_REC_GAIN, 0x0f0f },
        { } /* terminator */
};

int patch_lm4550(struct snd_ac97 *ac97)
{
        ac97->res_table = lm4550_restbl;
        return 0;
}

/* 
 *  UCB1400 codec (http://www.semiconductors.philips.com/acrobat_download/datasheets/UCB1400-02.pdf)
 */
static const struct snd_kcontrol_new snd_ac97_controls_ucb1400[] = {
/* enable/disable headphone driver which allows direct connection to
   stereo headphone without the use of external DC blocking
   capacitors */
AC97_SINGLE("Headphone Driver", 0x6a, 6, 1, 0),
/* Filter used to compensate the DC offset is added in the ADC to remove idle
   tones from the audio band. */
AC97_SINGLE("DC Filter", 0x6a, 4, 1, 0),
/* Control smart-low-power mode feature. Allows automatic power down
   of unused blocks in the ADC analog front end and the PLL. */
AC97_SINGLE("Smart Low Power Mode", 0x6c, 4, 3, 0),
};

static int patch_ucb1400_specific(struct snd_ac97 * ac97)
{
        int idx, err;
        for (idx = 0; idx < ARRAY_SIZE(snd_ac97_controls_ucb1400); idx++)
                if ((err = snd_ctl_add(ac97->bus->card, snd_ctl_new1(&snd_ac97_controls_ucb1400[idx], ac97))) < 0)
                        return err;
        return 0;
}

static struct snd_ac97_build_ops patch_ucb1400_ops = {
        .build_specific = patch_ucb1400_specific,
};

int patch_ucb1400(struct snd_ac97 * ac97)
{
        ac97->build_ops = &patch_ucb1400_ops;
        /* enable headphone driver and smart low power mode by default */
        snd_ac97_write(ac97, 0x6a, 0x0050);
        snd_ac97_write(ac97, 0x6c, 0x0030);
        return 0;
}