// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *  Copyright (c) by Jaroslav Kysela <perex@perex.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.
 */

#include "ac97_local.h"
#include "ac97_patch.h"

/*
 *  Forward declarations
 */

static struct snd_kcontrol *snd_ac97_find_mixer_ctl(struct snd_ac97 *ac97,
                                                    const char *name);
static int snd_ac97_add_vmaster(struct snd_ac97 *ac97, char *name,
                                const unsigned int *tlv,
                                const char * const *followers);

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

/* replace with a new TLV */
static void reset_tlv(struct snd_ac97 *ac97, const char *name,
                      const 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_surround_jack_mode_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
        static const char * const texts[] = { "Shared", "Independent" };

        return snd_ctl_enum_info(uinfo, 1, 2, texts);
}

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 * const texts[] = { "2ch", "4ch", "6ch", "8ch" };

        return snd_ctl_enum_info(uinfo, 1, kcontrol->private_value, texts);
}

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 >= kcontrol->private_value)
                return -EINVAL;

        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, \
        }
/* 6ch */
#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, \
                .private_value = 3, \
        }
/* 4ch */
#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 = 2, \
        }
/* 8ch */
#define AC97_CHANNEL_MODE_8CH_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 = 4, \
        }

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;
}

/* system has shared jacks with surround out enabled */
static inline int is_shared_surrout(struct snd_ac97 *ac97)
{
        return !ac97->indep_surround && is_surround_on(ac97);
}

/* system has shared jacks with center/lfe out enabled */
static inline int is_shared_clfeout(struct snd_ac97 *ac97)
{
        return !ac97->indep_surround && is_clfe_on(ac97);
}

/* system has shared jacks with line in enabled */
static inline int is_shared_linein(struct snd_ac97 *ac97)
{
        return !ac97->indep_surround && !is_surround_on(ac97);
}

/* system has shared jacks with mic in enabled */
static inline int is_shared_micin(struct snd_ac97 *ac97)
{
        return !ac97->indep_surround && !is_clfe_on(ac97);
}

static inline int alc850_is_aux_back_surround(struct snd_ac97 *ac97)
{
        return is_surround_on(ac97);
}

/* The following snd_ac97_ymf753_... items added by David Shust (dshust@shustring.com) */
/* Modified for YMF743 by Keita Maehara <maehara@debian.org> */

/* It is possible to indicate to the Yamaha YMF7x3 the type of
   speakers being used. */

static int snd_ac97_ymf7x3_info_speaker(struct snd_kcontrol *kcontrol,
                                        struct snd_ctl_elem_info *uinfo)
{
        static const char * const texts[3] = {
                "Standard", "Small", "Smaller"
        };

        return snd_ctl_enum_info(uinfo, 1, 3, texts);
}

static int snd_ac97_ymf7x3_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_YMF7X3_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_ymf7x3_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_YMF7X3_3D_MODE_SEL, val);
}

static const struct snd_kcontrol_new snd_ac97_ymf7x3_controls_speaker =
{
        .iface  = SNDRV_CTL_ELEM_IFACE_MIXER,
        .name   = "3D Control - Speaker",
        .info   = snd_ac97_ymf7x3_info_speaker,
        .get    = snd_ac97_ymf7x3_get_speaker,
        .put    = snd_ac97_ymf7x3_put_speaker,
};

/* It is possible to indicate to the Yamaha YMF7x3 the source to
   direct to the S/PDIF output. */
static int snd_ac97_ymf7x3_spdif_source_info(struct snd_kcontrol *kcontrol,
                                             struct snd_ctl_elem_info *uinfo)
{
        static const char * const texts[2] = { "AC-Link", "A/D Converter" };

        return snd_ctl_enum_info(uinfo, 1, 2, texts);
}

static int snd_ac97_ymf7x3_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_YMF7X3_DIT_CTRL];
        ucontrol->value.enumerated.item[0] = (val >> 1) & 1;
        return 0;
}

static int snd_ac97_ymf7x3_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_YMF7X3_DIT_CTRL, 0x0002, val);
}

static int patch_yamaha_ymf7x3_3d(struct snd_ac97 *ac97)
{
        struct snd_kcontrol *kctl;
        int err;

        kctl = snd_ac97_cnew(&snd_ac97_controls_3d[0], ac97);
        err = snd_ctl_add(ac97->bus->card, kctl);
        if (err < 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);
        err = snd_ctl_add(ac97->bus->card,
                          snd_ac97_cnew(&snd_ac97_ymf7x3_controls_speaker,
                                        ac97));
        if (err < 0)
                return err;
        snd_ac97_write_cache(ac97, AC97_YMF7X3_3D_MODE_SEL, 0x0c00);
        return 0;
}

static const struct snd_kcontrol_new snd_ac97_yamaha_ymf743_controls_spdif[3] =
{
        AC97_SINGLE(SNDRV_CTL_NAME_IEC958("", PLAYBACK, SWITCH),
                    AC97_YMF7X3_DIT_CTRL, 0, 1, 0),
        {
                .iface  = SNDRV_CTL_ELEM_IFACE_MIXER,
                .name   = SNDRV_CTL_NAME_IEC958("", PLAYBACK, NONE) "Source",
                .info   = snd_ac97_ymf7x3_spdif_source_info,
                .get    = snd_ac97_ymf7x3_spdif_source_get,
                .put    = snd_ac97_ymf7x3_spdif_source_put,
        },
        AC97_SINGLE(SNDRV_CTL_NAME_IEC958("", NONE, NONE) "Mute",
                    AC97_YMF7X3_DIT_CTRL, 2, 1, 1)
};

static int patch_yamaha_ymf743_build_spdif(struct snd_ac97 *ac97)
{
        int err;

        err = patch_build_controls(ac97, &snd_ac97_controls_spdif[0], 3);
        if (err < 0)
                return err;
        err = patch_build_controls(ac97,
                                   snd_ac97_yamaha_ymf743_controls_spdif, 3);
        if (err < 0)
                return err;
        /* set default PCM S/PDIF params */
        /* PCM audio,no copyright,no preemphasis,PCM coder,original */
        snd_ac97_write_cache(ac97, AC97_YMF7X3_DIT_CTRL, 0xa201);
        return 0;
}

static const struct snd_ac97_build_ops patch_yamaha_ymf743_ops = {
        .build_spdif    = patch_yamaha_ymf743_build_spdif,
        .build_3d       = patch_yamaha_ymf7x3_3d,
};

static int patch_yamaha_ymf743(struct snd_ac97 *ac97)
{
        ac97->build_ops = &patch_yamaha_ymf743_ops;
        ac97->caps |= AC97_BC_BASS_TREBLE;
        ac97->caps |= 0x04 << 10; /* Yamaha 3D enhancement */
        ac97->rates[AC97_RATES_SPDIF] = SNDRV_PCM_RATE_48000; /* 48k only */
        ac97->ext_id |= AC97_EI_SPDIF; /* force the detection of spdif */
        return 0;
}

/* 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 const char * const texts[3] = { "Disabled", "Pin 43", "Pin 48" };

        return snd_ctl_enum_info(uinfo, 1, 3, texts);
}

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_YMF7X3_DIT_CTRL];
        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_YMF7X3_DIT_CTRL, 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_ymf7x3_spdif_source_info,
                .get    = snd_ac97_ymf7x3_spdif_source_get,
                .put    = snd_ac97_ymf7x3_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_YMF7X3_DIT_CTRL, 2, 1, 1)
};

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

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

static const struct snd_ac97_build_ops patch_yamaha_ymf753_ops = {
        .build_3d       = patch_yamaha_ymf7x3_3d,
        .build_post_spdif = patch_yamaha_ymf753_post_spdif
};

static 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 <lrg@slimlogic.co.uk>
 *  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++) {
                err = snd_ctl_add(ac97->bus->card, snd_ac97_cnew(&wm97xx_snd_ac97_controls[i], ac97));
                if (err < 0)
                        return err;
        }
        snd_ac97_write_cache(ac97,  AC97_WM97XX_FMIXER_VOL, 0x0808);
        return 0;
}

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

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

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

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

static int patch_wolfson05(struct snd_ac97 * ac97)
{
        /* WM9705, WM9710 */
        ac97->build_ops = &patch_wolfson_wm9703_ops;
#ifdef CONFIG_TOUCHSCREEN_WM9705
        /* WM9705 touchscreen uses AUX and VIDEO for touch */
        ac97->flags |= 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, 0),
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, 63, 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, 31, 1),
AC97_SINGLE("Mic 2 Volume", AC97_MIC, 0, 31, 1),
AC97_SINGLE("Mic 20dB Boost Switch", AC97_MIC, 7, 1, 0),

AC97_SINGLE("Master Left Inv Switch", AC97_MASTER, 6, 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++) {
                err = snd_ctl_add(ac97->bus->card, snd_ac97_cnew(&wm9711_snd_ac97_controls[i], ac97));
                if (err < 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 const struct snd_ac97_build_ops patch_wolfson_wm9711_ops = {
        .build_specific = patch_wolfson_wm9711_specific,
};

static 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("Beep to Headphone Switch", AC97_AUX, 15, 1, 1),
AC97_SINGLE("Beep to Headphone Volume", AC97_AUX, 12, 7, 1),
AC97_SINGLE("Beep to Master Switch", AC97_AUX, 11, 1, 1),
AC97_SINGLE("Beep to Master Volume", AC97_AUX, 8, 7, 1),
AC97_SINGLE("Beep to Mono Switch", AC97_AUX, 7, 1, 1),
AC97_SINGLE("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++) {
                err = snd_ctl_add(ac97->bus->card, snd_ac97_cnew(&wm13_snd_ac97_controls_3d[i], ac97));
                if (err < 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++) {
                err = snd_ctl_add(ac97->bus->card, snd_ac97_cnew(&wm13_snd_ac97_controls[i], ac97));
                if (err < 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 const 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
};

static 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
 */
static 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;

        err = snd_ctl_add(ac97->bus->card, kctl = snd_ac97_cnew(&snd_ac97_controls_3d[0], ac97));
        if (err < 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;

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

/* "Sigmatel " removed due to excessive name length: */
static const struct snd_kcontrol_new snd_ac97_sigmatel_phaseinvert =
AC97_SINGLE("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)) {
                err = patch_build_controls(ac97, &snd_ac97_sigmatel_controls[0], 1);
                if (err < 0)
                        return err;
        }
        if (snd_ac97_try_bit(ac97, AC97_SIGMATEL_ANALOG, 0)) {
                err = patch_build_controls(ac97, &snd_ac97_sigmatel_controls[1], 1);
                if (err < 0)
                        return err;
        }
        if (snd_ac97_try_bit(ac97, AC97_SIGMATEL_DAC2INVERT, 2)) {
                err = patch_build_controls(ac97, &snd_ac97_sigmatel_4speaker, 1);
                if (err < 0)
                        return err;
        }
        if (snd_ac97_try_bit(ac97, AC97_SIGMATEL_DAC2INVERT, 3)) {
                err = patch_build_controls(ac97, &snd_ac97_sigmatel_phaseinvert, 1);
                if (err < 0)
                        return err;
        }
        return 0;
}

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

static 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;

        /* the register bit is writable, but the function is not implemented: */
        snd_ac97_remove_ctl(ac97, "PCM Out Path & Mute", NULL);

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

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

static 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;
}

static 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;
}

static 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;
}

static 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 const char * const texts[5] = {
                "Input/Disabled", "Front Output",
                "Rear Output", "Center/LFE Output", "Mixer Output" };

        return snd_ctl_enum_info(uinfo, 1, 5, texts);
}

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 const char * const texts[7] = {
                "Mic2 Jack", "Mic1 Jack", "Line In Jack",
                "Front Jack", "Rear Jack", "Center/LFE Jack", "Mute" };

        return snd_ctl_enum_info(uinfo, 1, 7, texts);
}

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 const char * const texts[3] = {
                "None", "Front Jack", "Rear Jack"
        };

        return snd_ctl_enum_info(uinfo, 1, 3, texts);
}

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

static int patch_sigmatel_stac9758(struct snd_ac97 * ac97)
{
        static const unsigned short regs[4] = {
                AC97_SIGMATEL_OUTSEL,
                AC97_SIGMATEL_IOMISC,
                AC97_SIGMATEL_INSEL,
                AC97_SIGMATEL_VARIOUS
        };
        static const 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 const 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 */
        };
        const 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 */
        err = patch_build_controls(ac97, &snd_ac97_controls_spdif[0], 3);
        if (err < 0)
                return err;
        /* switch, spsa */
        err = patch_build_controls(ac97, &snd_ac97_cirrus_controls_spdif[0], 1);
        if (err < 0)
                return err;
        switch (ac97->id & AC97_ID_CS_MASK) {
        case AC97_ID_CS4205:
                err = patch_build_controls(ac97, &snd_ac97_cirrus_controls_spdif[1], 1);
                if (err < 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 const struct snd_ac97_build_ops patch_cirrus_ops = {
        .build_spdif = patch_cirrus_build_spdif
};

static 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;
}

static 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 */
        err = patch_build_controls(ac97, &snd_ac97_controls_spdif[0], 3);
        if (err < 0)
                return err;
        /* switch */
        err = patch_build_controls(ac97, &snd_ac97_conexant_controls_spdif[0], 1);
        if (err < 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 const struct snd_ac97_build_ops patch_conexant_ops = {
        .build_spdif = patch_conexant_build_spdif
};

static 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;
}

static int patch_cx20551(struct snd_ac97 *ac97)
{
        snd_ac97_update_bits(ac97, 0x5c, 0x01, 0x01);
        return 0;
}

/*
 * Analog Devices AD18xx, AD19xx codecs
 */
#ifdef CONFIG_PM
static void ad18xx_resume(struct snd_ac97 *ac97)
{
        static const 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

static const struct snd_ac97_res_table ad1819_restbl[] = {
        { AC97_PHONE, 0x9f1f },
        { AC97_MIC, 0x9f1f },
        { AC97_LINE, 0x9f1f },
        { AC97_CD, 0x9f1f },
        { AC97_VIDEO, 0x9f1f },
        { AC97_AUX, 0x9f1f },
        { AC97_PCM, 0x9f1f },
        { } /* terminator */
};

static 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 */
        ac97->res_table = ad1819_restbl;
        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 const 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 (cidx2 < 0)
                        patch_ad1881_chained1(ac97, cidx1, 0);
                else 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 const struct snd_ac97_build_ops patch_ad1881_build_ops = {
#ifdef CONFIG_PM
        .resume = ad18xx_resume
#endif
};

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

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

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

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

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

static 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 (AD1888/AD1980/AD1985 register 0x76) */
#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  /* 0=2.25V, 1=3.7V */
#define AC97_AD198X_VREF_0      0x000c  /* 0V (AD1985 only) */
#define AC97_AD198X_VREF_MASK   (AC97_AD198X_VREFH | AC97_AD198X_VREFD)
#define AC97_AD198X_VREF_SHIFT  2
#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 */

/* MISC 1 bits (AD1986 register 0x76) */
#define AC97_AD1986_MBC         0x0003  /* mic boost */
#define AC97_AD1986_MBC_20      0x0000  /* +20dB */
#define AC97_AD1986_MBC_10      0x0001  /* +10dB */
#define AC97_AD1986_MBC_30      0x0002  /* +30dB */
#define AC97_AD1986_LISEL0      0x0004  /* LINE_IN select bit 0 */
#define AC97_AD1986_LISEL1      0x0008  /* LINE_IN select bit 1 */
#define AC97_AD1986_LISEL_MASK  (AC97_AD1986_LISEL1 | AC97_AD1986_LISEL0)
#define AC97_AD1986_LISEL_LI    0x0000  /* LINE_IN pins as LINE_IN source */
#define AC97_AD1986_LISEL_SURR  0x0004  /* SURROUND pins as LINE_IN source */
#define AC97_AD1986_LISEL_MIC   0x0008  /* MIC_1/2 pins as LINE_IN source */
#define AC97_AD1986_SRU         0x0010  /* sample rate unlock */
#define AC97_AD1986_SOSEL       0x0020  /* SURROUND_OUT amplifiers input sel */
#define AC97_AD1986_2MIC        0x0040  /* 2-channel mic select */
#define AC97_AD1986_SPRD        0x0080  /* SPREAD enable */
#define AC97_AD1986_DMIX0       0x0100  /* downmix mode: */
                                        /*  0 = 6-to-4, 1 = 6-to-2 downmix */
#define AC97_AD1986_DMIX1       0x0200  /* downmix mode: 1 = enabled */
#define AC97_AD1986_CLDIS       0x0800  /* center/lfe disable */
#define AC97_AD1986_SODIS       0x1000  /* SURROUND_OUT disable */
#define AC97_AD1986_MSPLT       0x2000  /* mute split (read only 1) */
#define AC97_AD1986_AC97NC      0x4000  /* AC97 no compatible mode (r/o 1) */
#define AC97_AD1986_DACZ        0x8000  /* DAC zero-fill mode */

/* MISC 2 bits (AD1986 register 0x70) */
#define AC97_AD_MISC2           0x70    /* Misc Control Bits 2 (AD1986) */

#define AC97_AD1986_CVREF0      0x0004  /* C/LFE VREF_OUT 2.25V */
#define AC97_AD1986_CVREF1      0x0008  /* C/LFE VREF_OUT 0V */
#define AC97_AD1986_CVREF2      0x0010  /* C/LFE VREF_OUT 3.7V */
#define AC97_AD1986_CVREF_MASK \
        (AC97_AD1986_CVREF2 | AC97_AD1986_CVREF1 | AC97_AD1986_CVREF0)
#define AC97_AD1986_JSMAP       0x0020  /* Jack Sense Mapping 1 = alternate */
#define AC97_AD1986_MMDIS       0x0080  /* Mono Mute Disable */
#define AC97_AD1986_MVREF0      0x0400  /* MIC VREF_OUT 2.25V */
#define AC97_AD1986_MVREF1      0x0800  /* MIC VREF_OUT 0V */
#define AC97_AD1986_MVREF2      0x1000  /* MIC VREF_OUT 3.7V */
#define AC97_AD1986_MVREF_MASK \
        (AC97_AD1986_MVREF2 | AC97_AD1986_MVREF1 | AC97_AD1986_MVREF0)

/* MISC 3 bits (AD1986 register 0x7a) */
#define AC97_AD_MISC3           0x7a    /* Misc Control Bits 3 (AD1986) */

#define AC97_AD1986_MMIX        0x0004  /* Mic Mix, left/right */
#define AC97_AD1986_GPO         0x0008  /* General Purpose Out */
#define AC97_AD1986_LOHPEN      0x0010  /* LINE_OUT headphone drive */
#define AC97_AD1986_LVREF0      0x0100  /* LINE_OUT VREF_OUT 2.25V */
#define AC97_AD1986_LVREF1      0x0200  /* LINE_OUT VREF_OUT 0V */
#define AC97_AD1986_LVREF2      0x0400  /* LINE_OUT VREF_OUT 3.7V */
#define AC97_AD1986_LVREF_MASK \
        (AC97_AD1986_LVREF2 | AC97_AD1986_LVREF1 | AC97_AD1986_LVREF0)
#define AC97_AD1986_JSINVA      0x0800  /* Jack Sense Invert SENSE_A */
#define AC97_AD1986_LOSEL       0x1000  /* LINE_OUT amplifiers input select */
#define AC97_AD1986_HPSEL0      0x2000  /* Headphone amplifiers */
                                        /*   input select Surround DACs */
#define AC97_AD1986_HPSEL1      0x4000  /* Headphone amplifiers input */
                                        /*   select C/LFE DACs */
#define AC97_AD1986_JSINVB      0x8000  /* Jack Sense Invert SENSE_B */

/* Serial Config bits (AD1986 register 0x74) (incomplete) */
#define AC97_AD1986_OMS0        0x0100  /* Optional Mic Selector bit 0 */
#define AC97_AD1986_OMS1        0x0200  /* Optional Mic Selector bit 1 */
#define AC97_AD1986_OMS2        0x0400  /* Optional Mic Selector bit 2 */
#define AC97_AD1986_OMS_MASK \
        (AC97_AD1986_OMS2 | AC97_AD1986_OMS1 | AC97_AD1986_OMS0)
#define AC97_AD1986_OMS_M       0x0000  /* MIC_1/2 pins are MIC sources */
#define AC97_AD1986_OMS_L       0x0100  /* LINE_IN pins are MIC sources */
#define AC97_AD1986_OMS_C       0x0200  /* Center/LFE pins are MCI sources */
#define AC97_AD1986_OMS_MC      0x0400  /* Mix of MIC and C/LFE pins */
                                        /*   are MIC sources */
#define AC97_AD1986_OMS_ML      0x0500  /* MIX of MIC and LINE_IN pins */
                                        /*   are MIC sources */
#define AC97_AD1986_OMS_LC      0x0600  /* MIX of LINE_IN and C/LFE pins */
                                        /*   are MIC sources */
#define AC97_AD1986_OMS_MLC     0x0700  /* MIX of MIC, LINE_IN, C/LFE pins */
                                        /*   are MIC sources */


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

        return snd_ctl_enum_info(uinfo, 1, 2, texts);
}

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),
};

/* deny list to avoid HP/Line jack-sense controls
 * (SS vendor << 16 | device)
 */
static const unsigned int ad1981_jacks_denylist[] = {
        0x10140523, /* Thinkpad R40 */
        0x10140534, /* Thinkpad X31 */
        0x10140537, /* Thinkpad T41p */
        0x1014053e, /* Thinkpad R40e */
        0x10140554, /* Thinkpad T42p/R50p */
        0x10140567, /* Thinkpad T43p 2668-G7U */
        0x10140581, /* Thinkpad X41-2527 */
        0x10280160, /* Dell Dimension 2400 */
        0x104380b0, /* Asus A7V8X-MX */
        0x11790241, /* Toshiba Satellite A-15 S127 */
        0x1179ff10, /* Toshiba P500 */
        0x144dc01a, /* Samsung NP-X20C004/SEG */
        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_denylist))
                return 0;
        return patch_build_controls(ac97, snd_ac97_ad1981x_jack_sense,
                                    ARRAY_SIZE(snd_ac97_ad1981x_jack_sense));
}

static const 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
};

/* allow list to enable HP jack-sense bits
 * (SS vendor << 16 | device)
 */
static const unsigned int ad1981_jacks_allowlist[] = {
        0x0e11005a, /* HP nc4000/4010 */
        0x103c0890, /* HP nc6000 */
        0x103c0938, /* HP nc4220 */
        0x103c099c, /* HP nx6110 */
        0x103c0944, /* HP nc6220 */
        0x103c0934, /* HP nc8220 */
        0x103c006d, /* HP nx9105 */
        0x103c300d, /* HP Compaq dc5100 SFF(PT003AW) */
        0x17340088, /* FSC Scenic-W */
        0 /* end */
};

static void check_ad1981_hp_jack_sense(struct snd_ac97 *ac97)
{
        if (check_list(ac97, ad1981_jacks_allowlist))
                /* enable headphone jack sense */
                snd_ac97_update_bits(ac97, AC97_AD_JACK_SPDIF, 1<<11, 1<<11);
}

static 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;

        err = patch_build_controls(ac97, &snd_ac97_ad198x_2cmic, 1);
        if (err < 0)
                return err;
        if (check_list(ac97, ad1981_jacks_denylist))
                return 0;
        return patch_build_controls(ac97, snd_ac97_ad1981x_jack_sense,
                                    ARRAY_SIZE(snd_ac97_ad1981x_jack_sense));
}

static const 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
};

static 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;
}

#define snd_ac97_ad1888_lohpsel_info    snd_ctl_boolean_mono_info

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);
        if (ac97->spec.ad18xx.lo_as_master)
                ucontrol->value.integer.value[0] =
                        !ucontrol->value.integer.value[0];
        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];
        if (ac97->spec.ad18xx.lo_as_master)
                val = !val;
        val = val ? (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 const char * const texts[3] = {"Off", "6 -> 4", "6 -> 2"};

        return snd_ctl_enum_info(uinfo, 1, 3, texts);
}

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;
        /* clear LODIS if shared jack is to be used for Surround out */

        if (!ac97->spec.ad18xx.lo_as_master && is_shared_linein(ac97))
                val |= (1 << 12);
        /* clear CLDIS if shared jack is to be used for C/LFE out */
        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, AC97_AD_VREFD_SHIFT, 1, 1),
        AC97_SINGLE("High Pass Filter Enable", AC97_AD_TEST2,
                        AC97_AD_HPFD_SHIFT, 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)
{
        if (!ac97->spec.ad18xx.lo_as_master) {
                /* 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 const 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,
};

static int patch_ad1888(struct snd_ac97 * ac97)
{
        unsigned short misc;
        
        patch_ad1881(ac97);
        ac97->build_ops = &patch_ad1888_build_ops;

        /*
         * LO can be used as a real line-out on some devices,
         * and we need to revert the front/surround mixer switches
         */
        if (ac97->subsystem_vendor == 0x1043 &&
            ac97->subsystem_device == 0x1193) /* ASUS A9T laptop */
                ac97->spec.ad18xx.lo_as_master = 1;

        misc = snd_ac97_read(ac97, AC97_AD_MISC);
        /* AD-compatible mode */
        /* Stereo mutes enabled */
        misc |= AC97_AD198X_MSPLT | AC97_AD198X_AC97NC;
        if (!ac97->spec.ad18xx.lo_as_master)
                /* Switch FRONT/SURROUND LINE-OUT/HP-OUT default connection */
                /* it seems that most vendors connect line-out connector to
                 * headphone out of AC'97
                 */
                misc |= AC97_AD198X_LOSEL | AC97_AD198X_HPSEL;

        snd_ac97_write_cache(ac97, AC97_AD_MISC, misc);
        ac97->flags |= AC97_STEREO_MUTES;
        return 0;
}

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

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

static const 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,
};

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

static int snd_ac97_ad1985_vrefout_info(struct snd_kcontrol *kcontrol,
                                        struct snd_ctl_elem_info *uinfo)
{
        static const char * const texts[4] = {
                "High-Z", "3.7 V", "2.25 V", "0 V"
        };

        return snd_ctl_enum_info(uinfo, 1, 4, texts);
}

static int snd_ac97_ad1985_vrefout_get(struct snd_kcontrol *kcontrol,
                                       struct snd_ctl_elem_value *ucontrol)
{
        static const int reg2ctrl[4] = {2, 0, 1, 3};
        struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
        unsigned short val;
        val = (ac97->regs[AC97_AD_MISC] & AC97_AD198X_VREF_MASK)
              >> AC97_AD198X_VREF_SHIFT;
        ucontrol->value.enumerated.item[0] = reg2ctrl[val];
        return 0;
}

static int snd_ac97_ad1985_vrefout_put(struct snd_kcontrol *kcontrol, 
                                       struct snd_ctl_elem_value *ucontrol)
{
        static const int ctrl2reg[4] = {1, 2, 0, 3};
        struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
        unsigned short val;

        if (ucontrol->value.enumerated.item[0] > 3)
                return -EINVAL;
        val = ctrl2reg[ucontrol->value.enumerated.item[0]]
              << AC97_AD198X_VREF_SHIFT;
        return snd_ac97_update_bits(ac97, AC97_AD_MISC,
                                    AC97_AD198X_VREF_MASK, val);
}

static const struct snd_kcontrol_new snd_ac97_ad1985_controls[] = {
        AC97_SINGLE("Exchange Center/LFE", AC97_AD_SERIAL_CFG, 3, 1, 0),
        {
                .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("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
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
                .name = "V_REFOUT",
                .info = snd_ac97_ad1985_vrefout_info,
                .get = snd_ac97_ad1985_vrefout_get,
                .put = snd_ac97_ad1985_vrefout_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 void ad1985_update_jacks(struct snd_ac97 *ac97)
{
        ad1888_update_jacks(ac97);
        /* clear OMS if shared jack is to be used for C/LFE out */
        snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 1 << 9,
                             is_shared_micin(ac97) ? 1 << 9 : 0);
}

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

        /* 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");

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

        return patch_build_controls(ac97, snd_ac97_ad1985_controls,
                                    ARRAY_SIZE(snd_ac97_ad1985_controls));
}

static const 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,
};

static 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 */
        /* AD-compatible mode */
        /* Stereo mutes enabled */
        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;

        /* update current jack configuration */
        ad1985_update_jacks(ac97);

        /* 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;
}

#define snd_ac97_ad1986_bool_info       snd_ctl_boolean_mono_info

static int snd_ac97_ad1986_lososel_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_MISC3];
        ucontrol->value.integer.value[0] = (val & AC97_AD1986_LOSEL) != 0;
        return 0;
}

static int snd_ac97_ad1986_lososel_put(struct snd_kcontrol *kcontrol,
                                       struct snd_ctl_elem_value *ucontrol)
{
        struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
        int ret0;
        int ret1;
        int sprd = (ac97->regs[AC97_AD_MISC] & AC97_AD1986_SPRD) != 0;

        ret0 = snd_ac97_update_bits(ac97, AC97_AD_MISC3, AC97_AD1986_LOSEL,
                                        ucontrol->value.integer.value[0] != 0
                                    ? AC97_AD1986_LOSEL : 0);
        if (ret0 < 0)
                return ret0;

        /* SOSEL is set to values of "Spread" or "Exchange F/S" controls */
        ret1 = snd_ac97_update_bits(ac97, AC97_AD_MISC, AC97_AD1986_SOSEL,
                                    (ucontrol->value.integer.value[0] != 0
                                     || sprd)
                                    ? AC97_AD1986_SOSEL : 0);
        if (ret1 < 0)
                return ret1;

        return (ret0 > 0 || ret1 > 0) ? 1 : 0;
}

static int snd_ac97_ad1986_spread_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_AD1986_SPRD) != 0;
        return 0;
}

static int snd_ac97_ad1986_spread_put(struct snd_kcontrol *kcontrol,
                                      struct snd_ctl_elem_value *ucontrol)
{
        struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
        int ret0;
        int ret1;
        int sprd = (ac97->regs[AC97_AD_MISC3] & AC97_AD1986_LOSEL) != 0;

        ret0 = snd_ac97_update_bits(ac97, AC97_AD_MISC, AC97_AD1986_SPRD,
                                        ucontrol->value.integer.value[0] != 0
                                    ? AC97_AD1986_SPRD : 0);
        if (ret0 < 0)
                return ret0;

        /* SOSEL is set to values of "Spread" or "Exchange F/S" controls */
        ret1 = snd_ac97_update_bits(ac97, AC97_AD_MISC, AC97_AD1986_SOSEL,
                                    (ucontrol->value.integer.value[0] != 0
                                     || sprd)
                                    ? AC97_AD1986_SOSEL : 0);
        if (ret1 < 0)
                return ret1;

        return (ret0 > 0 || ret1 > 0) ? 1 : 0;
}

static int snd_ac97_ad1986_miclisel_get(struct snd_kcontrol *kcontrol,
                                        struct snd_ctl_elem_value *ucontrol)
{
        struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);

        ucontrol->value.integer.value[0] = ac97->spec.ad18xx.swap_mic_linein;
        return 0;
}

static int snd_ac97_ad1986_miclisel_put(struct snd_kcontrol *kcontrol,
                                        struct snd_ctl_elem_value *ucontrol)
{
        struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
        unsigned char swap = ucontrol->value.integer.value[0] != 0;

        if (swap != ac97->spec.ad18xx.swap_mic_linein) {
                ac97->spec.ad18xx.swap_mic_linein = swap;
                if (ac97->build_ops->update_jacks)
                        ac97->build_ops->update_jacks(ac97);
                return 1;
        }
        return 0;
}

static int snd_ac97_ad1986_vrefout_get(struct snd_kcontrol *kcontrol,
                                       struct snd_ctl_elem_value *ucontrol)
{
        /* Use MIC_1/2 V_REFOUT as the "get" value */
        struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
        unsigned short val;
        unsigned short reg = ac97->regs[AC97_AD_MISC2];
        if ((reg & AC97_AD1986_MVREF0) != 0)
                val = 2;
        else if ((reg & AC97_AD1986_MVREF1) != 0)
                val = 3;
        else if ((reg & AC97_AD1986_MVREF2) != 0)
                val = 1;
        else
                val = 0;
        ucontrol->value.enumerated.item[0] = val;
        return 0;
}

static int snd_ac97_ad1986_vrefout_put(struct snd_kcontrol *kcontrol,
                                       struct snd_ctl_elem_value *ucontrol)
{
        struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
        unsigned short cval;
        unsigned short lval;
        unsigned short mval;
        int cret;
        int lret;
        int mret;

        switch (ucontrol->value.enumerated.item[0])
        {
        case 0: /* High-Z */
                cval = 0;
                lval = 0;
                mval = 0;
                break;
        case 1: /* 3.7 V */
                cval = AC97_AD1986_CVREF2;
                lval = AC97_AD1986_LVREF2;
                mval = AC97_AD1986_MVREF2;
                break;
        case 2: /* 2.25 V */
                cval = AC97_AD1986_CVREF0;
                lval = AC97_AD1986_LVREF0;
                mval = AC97_AD1986_MVREF0;
                break;
        case 3: /* 0 V */
                cval = AC97_AD1986_CVREF1;
                lval = AC97_AD1986_LVREF1;
                mval = AC97_AD1986_MVREF1;
                break;
        default:
                return -EINVAL;
        }

        cret = snd_ac97_update_bits(ac97, AC97_AD_MISC2,
                                    AC97_AD1986_CVREF_MASK, cval);
        if (cret < 0)
                return cret;
        lret = snd_ac97_update_bits(ac97, AC97_AD_MISC3,
                                    AC97_AD1986_LVREF_MASK, lval);
        if (lret < 0)
                return lret;
        mret = snd_ac97_update_bits(ac97, AC97_AD_MISC2,
                                    AC97_AD1986_MVREF_MASK, mval);
        if (mret < 0)
                return mret;

        return (cret > 0 || lret > 0 || mret > 0) ? 1 : 0;
}

static const struct snd_kcontrol_new snd_ac97_ad1986_controls[] = {
        AC97_SINGLE("Exchange Center/LFE", AC97_AD_SERIAL_CFG, 3, 1, 0),
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
                .name = "Exchange Front/Surround",
                .info = snd_ac97_ad1986_bool_info,
                .get = snd_ac97_ad1986_lososel_get,
                .put = snd_ac97_ad1986_lososel_put
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
                .name = "Exchange Mic/Line In",
                .info = snd_ac97_ad1986_bool_info,
                .get = snd_ac97_ad1986_miclisel_get,
                .put = snd_ac97_ad1986_miclisel_put
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
                .name = "Spread Front to Surround and Center/LFE",
                .info = snd_ac97_ad1986_bool_info,
                .get = snd_ac97_ad1986_spread_get,
                .put = snd_ac97_ad1986_spread_put
        },
        {
                .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
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
                .name = "V_REFOUT",
                .info = snd_ac97_ad1985_vrefout_info,
                .get = snd_ac97_ad1986_vrefout_get,
                .put = snd_ac97_ad1986_vrefout_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 void ad1986_update_jacks(struct snd_ac97 *ac97)
{
        unsigned short misc_val = 0;
        unsigned short ser_val;

        /* disable SURROUND and CENTER/LFE if not surround mode */
        if (!is_surround_on(ac97))
                misc_val |= AC97_AD1986_SODIS;
        if (!is_clfe_on(ac97))
                misc_val |= AC97_AD1986_CLDIS;

        /* select line input (default=LINE_IN, SURROUND or MIC_1/2) */
        if (is_shared_linein(ac97))
                misc_val |= AC97_AD1986_LISEL_SURR;
        else if (ac97->spec.ad18xx.swap_mic_linein != 0)
                misc_val |= AC97_AD1986_LISEL_MIC;
        snd_ac97_update_bits(ac97, AC97_AD_MISC,
                             AC97_AD1986_SODIS | AC97_AD1986_CLDIS |
                             AC97_AD1986_LISEL_MASK,
                             misc_val);

        /* select microphone input (MIC_1/2, Center/LFE or LINE_IN) */
        if (is_shared_micin(ac97))
                ser_val = AC97_AD1986_OMS_C;
        else if (ac97->spec.ad18xx.swap_mic_linein != 0)
                ser_val = AC97_AD1986_OMS_L;
        else
                ser_val = AC97_AD1986_OMS_M;
        snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG,
                             AC97_AD1986_OMS_MASK,
                             ser_val);
}

static int patch_ad1986_specific(struct snd_ac97 *ac97)
{
        int err;

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

        return patch_build_controls(ac97, snd_ac97_ad1986_controls,
                                    ARRAY_SIZE(snd_ac97_ad1985_controls));
}

static const struct snd_ac97_build_ops patch_ad1986_build_ops = {
        .build_post_spdif = patch_ad198x_post_spdif,
        .build_specific = patch_ad1986_specific,
#ifdef CONFIG_PM
        .resume = ad18xx_resume,
#endif
        .update_jacks = ad1986_update_jacks,
};

static int patch_ad1986(struct snd_ac97 * ac97)
{
        patch_ad1881(ac97);
        ac97->build_ops = &patch_ad1986_build_ops;
        ac97->flags |= AC97_STEREO_MUTES;

        /* update current jack configuration */
        ad1986_update_jacks(ac97);

        return 0;
}

/*
 * realtek ALC203: use mono-out for pin 37
 */
static int patch_alc203(struct snd_ac97 *ac97)
{
        snd_ac97_update_bits(ac97, 0x7a, 0x400, 0x400);
        return 0;
}

/*
 * realtek ALC65x/850 codecs
 */
static void alc650_update_jacks(struct snd_ac97 *ac97)
{
        int shared;
        
        /* shared Line-In / Surround Out */
        shared = is_shared_surrout(ac97);
        snd_ac97_update_bits(ac97, AC97_ALC650_MULTICH, 1 << 9,
                             shared ? (1 << 9) : 0);
        /* update shared Mic In / Center/LFE Out */
        shared = is_shared_clfeout(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 int alc650_swap_surround_put(struct snd_kcontrol *kcontrol,
                                    struct snd_ctl_elem_value *ucontrol)
{
        struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
        struct snd_pcm_chmap *map = ac97->chmaps[SNDRV_PCM_STREAM_PLAYBACK];

        if (map) {
                if (ucontrol->value.integer.value[0])
                        map->chmap = snd_pcm_std_chmaps;
                else
                        map->chmap = snd_pcm_alt_chmaps;
        }
        return snd_ac97_put_volsw(kcontrol, ucontrol);
}

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 */
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
                .name = "Swap Surround Slot",
                .info = snd_ac97_info_volsw,
                .get = snd_ac97_get_volsw,
                .put = alc650_swap_surround_put,
                .private_value =  AC97_SINGLE_VALUE(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 const DECLARE_TLV_DB_SCALE(db_scale_5bit_3db_max, -4350, 150, 0);

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

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

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

static 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 / Surround Out */
        shared = is_shared_surrout(ac97);
        ac97_update_bits_page(ac97, AC97_ALC650_MULTICH, 1 << 9,
                              shared ? (1 << 9) : 0, 0);
        /* update shared Mic In / Center/LFE Out */
        shared = is_shared_clfeout(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 const char * const texts_655[3] = {
                "PCM", "Analog In", "IEC958 In"
        };
        static const char * const texts_658[4] = {
                "PCM", "Analog1 In", "Analog2 In", "IEC958 In"
        };
        struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);

        if (ac97->spec.dev_flags)
                return snd_ctl_enum_info(uinfo, 1, 4, texts_658);
        else
                return snd_ctl_enum_info(uinfo, 1, 3, texts_655);
}

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;

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

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

static 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 */
                     ac97->subsystem_device == 0x0351 || /* MSI L725 laptop */
                     ac97->subsystem_device == 0x0471 || /* MSI L720 laptop */
                     ac97->subsystem_device == 0x0061))  /* MSI S250 laptop */
                        val &= ~(1 << 1); /* Pin 47 is EAPD (for internal speaker) */
                else
                        val |= (1 << 1); /* Pin 47 is spdif input pin */
                /* this seems missing on some hardwares */
                ac97->ext_id |= AC97_EI_SPDIF;
        }
        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
#define AC97_ALC850_MULTICH    0x6a

static void alc850_update_jacks(struct snd_ac97 *ac97)
{
        int shared;
        int aux_is_back_surround;
        
        /* shared Line-In / Surround Out */
        shared = is_shared_surrout(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 In / Center/LFE Out */
        shared = is_shared_clfeout(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));

        aux_is_back_surround = alc850_is_aux_back_surround(ac97);
        /* Aux is Back Surround */
        snd_ac97_update_bits(ac97, AC97_ALC850_MULTICH, 1 << 10,
                                 aux_is_back_surround ? (1<<10) : (0<<10));
}

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_8CH_CTL,
};

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

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

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

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

        ac97->spec.dev_flags = 0; /* for IEC958 playback route - ALC655 compatible */
        ac97->flags |= AC97_HAS_8CH;

        /* 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
           NB default bit 10=0 = Aux is Capture, not Back Surround
        */
        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;
}

static int patch_aztech_azf3328_specific(struct snd_ac97 *ac97)
{
        struct snd_kcontrol *kctl_3d_center =
                snd_ac97_find_mixer_ctl(ac97, "3D Control - Center");
        struct snd_kcontrol *kctl_3d_depth =
                snd_ac97_find_mixer_ctl(ac97, "3D Control - Depth");

        /*
         * 3D register is different from AC97 standard layout
         * (also do some renaming, to resemble Windows driver naming)
         */
        if (kctl_3d_center) {
                kctl_3d_center->private_value =
                        AC97_SINGLE_VALUE(AC97_3D_CONTROL, 1, 0x07, 0);
                snd_ac97_rename_vol_ctl(ac97,
                        "3D Control - Center", "3D Control - Width"
                );
        }
        if (kctl_3d_depth)
                kctl_3d_depth->private_value =
                        AC97_SINGLE_VALUE(AC97_3D_CONTROL, 8, 0x03, 0);

        /* Aztech Windows driver calls the
           equivalent control "Modem Playback", thus rename it: */
        snd_ac97_rename_vol_ctl(ac97,
                "Master Mono Playback", "Modem Playback"
        );
        snd_ac97_rename_vol_ctl(ac97,
                "Headphone Playback", "FM Synth Playback"
        );

        return 0;
}

static const struct snd_ac97_build_ops patch_aztech_azf3328_ops = {
        .build_specific = patch_aztech_azf3328_specific
};

static int patch_aztech_azf3328(struct snd_ac97 *ac97)
{
        ac97->build_ops = &patch_aztech_azf3328_ops;
        return 0;
}

/*
 * C-Media CM97xx codecs
 */
static void cm9738_update_jacks(struct snd_ac97 *ac97)
{
        /* shared Line-In / Surround Out */
        snd_ac97_update_bits(ac97, AC97_CM9738_VENDOR_CTRL, 1 << 10,
                             is_shared_surrout(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));
}