text: /*
   *  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.
   *
   *
   *   This program is free software; you can redistribute it and/or modify
   *   it under the terms of the GNU General Public License as published by
   *   the Free Software Foundation; either version 2 of the License, or
   *   (at your option) any later version.
   *
   *   This program is distributed in the hope that it will be useful,
   *   but WITHOUT ANY WARRANTY; without even the implied warranty of
   *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   *   GNU General Public License for more details.
   *
   *   You should have received a copy of the GNU General Public License
   *   along with this program; if not, write to the Free Software
   *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
   *
   */
  
  #include "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 **slaves);
  
  /*
   *  Chip specific initialization
   */
  
  static int patch_build_controls(struct snd_ac97 * ac97, const struct snd_kcontrol_new *controls, int count)
  {
  	int idx, err;
  
  	for (idx = 0; idx < count; idx++)
  		if ((err = snd_ctl_add(ac97->bus->card, snd_ac97_cnew(&controls[idx], ac97))) < 0)
  			return err;
  	return 0;
  }
  
  /* replace with a new TLV */
  static void reset_tlv(struct snd_ac97 *ac97, const char *name,
  		      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_enum_text_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo,
  			       const char **texts, unsigned int nums)
  {
  	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
  	uinfo->count = 1;
  	uinfo->value.enumerated.items = nums;
  	if (uinfo->value.enumerated.item > nums - 1)
  		uinfo->value.enumerated.item = nums - 1;
  	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
  	return 0;
  }
  
  static int ac97_surround_jack_mode_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
  {
  	static const char *texts[] = { "Shared", "Independent" };
  	return ac97_enum_text_info(kcontrol, uinfo, texts, 2);
  }
  
  static int ac97_surround_jack_mode_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
  {
  	struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
  
  	ucontrol->value.enumerated.item[0] = ac97->indep_surround;
  	return 0;
  }
  
  static int ac97_surround_jack_mode_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
  {
  	struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
  	unsigned char indep = !!ucontrol->value.enumerated.item[0];
  
  	if (indep != ac97->indep_surround) {
  		ac97->indep_surround = indep;
  		if (ac97->build_ops->update_jacks)
  			ac97->build_ops->update_jacks(ac97);
  		return 1;
  	}
  	return 0;
  }
  
  static int ac97_channel_mode_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
  {
  	static const char *texts[] = { "2ch", "4ch", "6ch", "8ch" };
  	return ac97_enum_text_info(kcontrol, uinfo, texts,
  		kcontrol->private_value);
  }
  
  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 char *texts[3] = {
  		"Standard", "Small", "Smaller"
  	};
  
  	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
  	uinfo->count = 1;
  	uinfo->value.enumerated.items = 3;
  	if (uinfo->value.enumerated.item > 2)
  		uinfo->value.enumerated.item = 2;
  	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
  	return 0;
  }
  
  static int snd_ac97_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 char *texts[2] = { "AC-Link", "A/D Converter" };
  
  	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
  	uinfo->count = 1;
  	uinfo->value.enumerated.items = 2;
  	if (uinfo->value.enumerated.item > 1)
  		uinfo->value.enumerated.item = 1;
  	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
  	return 0;
  }
  
  static int snd_ac97_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 char *texts[3] = { "Disabled", "Pin 43", "Pin 48" };
  
  	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
  	uinfo->count = 1;
  	uinfo->value.enumerated.items = 3;
  	if (uinfo->value.enumerated.item > 2)
  		uinfo->value.enumerated.item = 2;
  	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
  	return 0;
  }
  
  static int snd_ac97_ymf753_spdif_output_pin_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
  {
  	struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
  	unsigned short val;
  
  	val = ac97->regs[AC97_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;
  
  	if ((err = patch_build_controls(ac97, snd_ac97_ymf753_controls_spdif, ARRAY_SIZE(snd_ac97_ymf753_controls_spdif))) < 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++) {
  		if ((err = snd_ctl_add(ac97->bus->card, snd_ac97_cnew(&wm97xx_snd_ac97_controls[i], ac97))) < 0)
  			return err;
  	}
  	snd_ac97_write_cache(ac97,  AC97_WM97XX_FMIXER_VOL, 0x0808);
  	return 0;
  }
  
  static 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++) {
  		if ((err = snd_ctl_add(ac97->bus->card, snd_ac97_cnew(&wm9704_snd_ac97_controls[i], ac97))) < 0)
  			return err;
  	}
  	/* patch for DVD noise */
  	snd_ac97_write_cache(ac97, AC97_WM9704_TEST, 0x0200);
  	return 0;
  }
  
  static 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++) {
  		if ((err = snd_ctl_add(ac97->bus->card, snd_ac97_cnew(&wm9711_snd_ac97_controls[i], ac97))) < 0)
  			return err;
  	}
  	snd_ac97_write_cache(ac97,  AC97_CODEC_CLASS_REV, 0x0808);
  	snd_ac97_write_cache(ac97,  AC97_PCI_SVID, 0x0808);
  	snd_ac97_write_cache(ac97,  AC97_VIDEO, 0x0808);
  	snd_ac97_write_cache(ac97,  AC97_AUX, 0x0808);
  	snd_ac97_write_cache(ac97,  AC97_PC_BEEP, 0x0808);
  	snd_ac97_write_cache(ac97,  AC97_CD, 0x0000);
  	return 0;
  }
  
  static 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++) {
  		if ((err = snd_ctl_add(ac97->bus->card, snd_ac97_cnew(&wm13_snd_ac97_controls_3d[i], ac97))) < 0)
  			return err;
  	}
  	return 0;
  }
  
  static int patch_wolfson_wm9713_specific(struct snd_ac97 * ac97)
  {
  	int err, i;
  	
  	for (i = 0; i < ARRAY_SIZE(wm13_snd_ac97_controls); i++) {
  		if ((err = snd_ctl_add(ac97->bus->card, snd_ac97_cnew(&wm13_snd_ac97_controls[i], ac97))) < 0)
  			return err;
  	}
  	snd_ac97_write_cache(ac97, AC97_PC_BEEP, 0x0808);
  	snd_ac97_write_cache(ac97, AC97_PHONE, 0x0808);
  	snd_ac97_write_cache(ac97, AC97_MIC, 0x0808);
  	snd_ac97_write_cache(ac97, AC97_LINE, 0x00da);
  	snd_ac97_write_cache(ac97, AC97_CD, 0x0808);
  	snd_ac97_write_cache(ac97, AC97_VIDEO, 0xd612);
  	snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x1ba0);
  	return 0;
  }
  
  #ifdef CONFIG_PM
  static void patch_wolfson_wm9713_suspend (struct snd_ac97 * ac97)
  {
  	snd_ac97_write_cache(ac97, AC97_EXTENDED_MID, 0xfeff);
  	snd_ac97_write_cache(ac97, AC97_EXTENDED_MSTATUS, 0xffff);
  }
  
  static void patch_wolfson_wm9713_resume (struct snd_ac97 * ac97)
  {
  	snd_ac97_write_cache(ac97, AC97_EXTENDED_MID, 0xda00);
  	snd_ac97_write_cache(ac97, AC97_EXTENDED_MSTATUS, 0x3810);
  	snd_ac97_write_cache(ac97, AC97_POWERDOWN, 0x0);
  }
  #endif
  
  static 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;
  
  	if ((err = snd_ctl_add(ac97->bus->card, kctl = snd_ac97_cnew(&snd_ac97_controls_3d[0], ac97))) < 0)
  		return err;
  	strcpy(kctl->id.name, "3D Control Sigmatel - Depth");
  	kctl->private_value = AC97_SINGLE_VALUE(AC97_3D_CONTROL, 2, 3, 0);
  	snd_ac97_write_cache(ac97, AC97_3D_CONTROL, 0x0000);
  	return 0;
  }
  
  static int patch_sigmatel_stac9708_3d(struct snd_ac97 * ac97)
  {
  	struct snd_kcontrol *kctl;
  	int err;
  
  	if ((err = snd_ctl_add(ac97->bus->card, kctl = snd_ac97_cnew(&snd_ac97_controls_3d[0], ac97))) < 0)
  		return err;
  	strcpy(kctl->id.name, "3D Control Sigmatel - Depth");
  	kctl->private_value = AC97_SINGLE_VALUE(AC97_3D_CONTROL, 0, 3, 0);
  	if ((err = snd_ctl_add(ac97->bus->card, kctl = snd_ac97_cnew(&snd_ac97_controls_3d[0], ac97))) < 0)
  		return err;
  	strcpy(kctl->id.name, "3D Control Sigmatel - Rear Depth");
  	kctl->private_value = AC97_SINGLE_VALUE(AC97_3D_CONTROL, 2, 3, 0);
  	snd_ac97_write_cache(ac97, AC97_3D_CONTROL, 0x0000);
  	return 0;
  }
  
  static const struct snd_kcontrol_new snd_ac97_sigmatel_4speaker =
  AC97_SINGLE("Sigmatel 4-Speaker Stereo Playback Switch",
  		AC97_SIGMATEL_DAC2INVERT, 2, 1, 0);
  
  /* "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))
  		if ((err = patch_build_controls(ac97, &snd_ac97_sigmatel_controls[0], 1)) < 0)
  			return err;
  	if (snd_ac97_try_bit(ac97, AC97_SIGMATEL_ANALOG, 0))
  		if ((err = patch_build_controls(ac97, &snd_ac97_sigmatel_controls[1], 1)) < 0)
  			return err;
  	if (snd_ac97_try_bit(ac97, AC97_SIGMATEL_DAC2INVERT, 2))
  		if ((err = patch_build_controls(ac97, &snd_ac97_sigmatel_4speaker, 1)) < 0)
  			return err;
  	if (snd_ac97_try_bit(ac97, AC97_SIGMATEL_DAC2INVERT, 3))
  		if ((err = patch_build_controls(ac97, &snd_ac97_sigmatel_phaseinvert, 1)) < 0)
  			return err;
  	return 0;
  }
  
  static 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");
  	if ((err = patch_build_controls(ac97, &snd_ac97_stac9708_bias_control, 1)) < 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 char *texts[5] = { "Input/Disabled", "Front Output",
  		"Rear Output", "Center/LFE Output", "Mixer Output" };
  
  	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
  	uinfo->count = 1;
  	uinfo->value.enumerated.items = 5;
  	if (uinfo->value.enumerated.item > 4)
  		uinfo->value.enumerated.item = 4;
  	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
  	return 0;
  }
  
  static int snd_ac97_stac9758_output_jack_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
  {
  	struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
  	int shift = kcontrol->private_value;
  	unsigned short val;
  
  	val = ac97->regs[AC97_SIGMATEL_OUTSEL] >> shift;
  	if (!(val & 4))
  		ucontrol->value.enumerated.item[0] = 0;
  	else
  		ucontrol->value.enumerated.item[0] = 1 + (val & 3);
  	return 0;
  }
  
  static int snd_ac97_stac9758_output_jack_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
  {
  	struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
  	int shift = kcontrol->private_value;
  	unsigned short val;
  
  	if (ucontrol->value.enumerated.item[0] > 4)
  		return -EINVAL;
  	if (ucontrol->value.enumerated.item[0] == 0)
  		val = 0;
  	else
  		val = 4 | (ucontrol->value.enumerated.item[0] - 1);
  	return ac97_update_bits_page(ac97, AC97_SIGMATEL_OUTSEL,
  				     7 << shift, val << shift, 0);
  }
  
  static int snd_ac97_stac9758_input_jack_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
  {
  	static char *texts[7] = { "Mic2 Jack", "Mic1 Jack", "Line In Jack",
  		"Front Jack", "Rear Jack", "Center/LFE Jack", "Mute" };
  
  	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
  	uinfo->count = 1;
  	uinfo->value.enumerated.items = 7;
  	if (uinfo->value.enumerated.item > 6)
  		uinfo->value.enumerated.item = 6;
  	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
  	return 0;
  }
  
  static int snd_ac97_stac9758_input_jack_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
  {
  	struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
  	int shift = kcontrol->private_value;
  	unsigned short val;
  
  	val = ac97->regs[AC97_SIGMATEL_INSEL];
  	ucontrol->value.enumerated.item[0] = (val >> shift) & 7;
  	return 0;
  }
  
  static int snd_ac97_stac9758_input_jack_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
  {
  	struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
  	int shift = kcontrol->private_value;
  
  	return ac97_update_bits_page(ac97, AC97_SIGMATEL_INSEL, 7 << shift,
  				     ucontrol->value.enumerated.item[0] << shift, 0);
  }
  
  static int snd_ac97_stac9758_phonesel_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
  {
  	static char *texts[3] = { "None", "Front Jack", "Rear Jack" };
  
  	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
  	uinfo->count = 1;
  	uinfo->value.enumerated.items = 3;
  	if (uinfo->value.enumerated.item > 2)
  		uinfo->value.enumerated.item = 2;
  	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
  	return 0;
  }
  
  static int snd_ac97_stac9758_phonesel_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
  {
  	struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
  
  	ucontrol->value.enumerated.item[0] = ac97->regs[AC97_SIGMATEL_IOMISC] & 3;
  	return 0;
  }
  
  static int snd_ac97_stac9758_phonesel_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
  {
  	struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
  
  	return ac97_update_bits_page(ac97, AC97_SIGMATEL_IOMISC, 3,
  				     ucontrol->value.enumerated.item[0], 0);
  }
  
  #define STAC9758_OUTPUT_JACK(xname, shift) \
  {	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
  	.info = snd_ac97_stac9758_output_jack_info, \
  	.get = snd_ac97_stac9758_output_jack_get, \
  	.put = snd_ac97_stac9758_output_jack_put, \
  	.private_value = shift }
  #define STAC9758_INPUT_JACK(xname, shift) \
  {	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
  	.info = snd_ac97_stac9758_input_jack_info, \
  	.get = snd_ac97_stac9758_input_jack_get, \
  	.put = snd_ac97_stac9758_input_jack_put, \
  	.private_value = shift }
  static const struct snd_kcontrol_new snd_ac97_sigmatel_stac9758_controls[] = {
  	STAC9758_OUTPUT_JACK("Mic1 Jack", 1),
  	STAC9758_OUTPUT_JACK("LineIn Jack", 4),
  	STAC9758_OUTPUT_JACK("Front Jack", 7),
  	STAC9758_OUTPUT_JACK("Rear Jack", 10),
  	STAC9758_OUTPUT_JACK("Center/LFE Jack", 13),
  	STAC9758_INPUT_JACK("Mic Input Source", 0),
  	STAC9758_INPUT_JACK("Line Input Source", 8),
  	{
  		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
  		.name = "Headphone Amp",
  		.info = snd_ac97_stac9758_phonesel_info,
  		.get = snd_ac97_stac9758_phonesel_get,
  		.put = snd_ac97_stac9758_phonesel_put
  	},
  	AC97_SINGLE("Exchange Center/LFE", AC97_SIGMATEL_IOMISC, 4, 1, 0),
  	AC97_SINGLE("Headphone +3dB Boost", AC97_SIGMATEL_IOMISC, 8, 1, 0)
  };
  
  static int patch_sigmatel_stac9758_specific(struct snd_ac97 *ac97)
  {
  	int err;
  
  	err = patch_sigmatel_stac97xx_specific(ac97);
  	if (err < 0)
  		return err;
  	err = patch_build_controls(ac97, snd_ac97_sigmatel_stac9758_controls,
  				   ARRAY_SIZE(snd_ac97_sigmatel_stac9758_controls));
  	if (err < 0)
  		return err;
  	/* DAC-A direct */
  	snd_ac97_rename_vol_ctl(ac97, "Headphone Playback", "Front Playback");
  	/* DAC-A to Mix = PCM */
  	/* DAC-B direct = Surround */
  	/* DAC-B to Mix */
  	snd_ac97_rename_vol_ctl(ac97, "Video Playback", "Surround Mix Playback");
  	/* DAC-C direct = Center/LFE */
  
  	return 0;
  }
  
  static 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 unsigned short regs[4] = {
  		AC97_SIGMATEL_OUTSEL,
  		AC97_SIGMATEL_IOMISC,
  		AC97_SIGMATEL_INSEL,
  		AC97_SIGMATEL_VARIOUS
  	};
  	static unsigned short def_regs[4] = {
  		/* OUTSEL */ 0xd794, /* CL:CL, SR:SR, LO:MX, LI:DS, MI:DS */
  		/* IOMISC */ 0x2001,
  		/* INSEL */ 0x0201, /* LI:LI, MI:M1 */
  		/* VARIOUS */ 0x0040
  	};
  	static unsigned short m675_regs[4] = {
  		/* OUTSEL */ 0xfc70, /* CL:MX, SR:MX, LO:DS, LI:MX, MI:DS */
  		/* IOMISC */ 0x2102, /* HP amp on */
  		/* INSEL */ 0x0203, /* LI:LI, MI:FR */
  		/* VARIOUS */ 0x0041 /* stereo mic */
  	};
  	unsigned short *pregs = def_regs;
  	int i;
  
  	/* Gateway M675 notebook */
  	if (ac97->pci && 
  	    ac97->subsystem_vendor == 0x107b &&
  	    ac97->subsystem_device == 0x0601)
  	    	pregs = m675_regs;
  
  	// patch for SigmaTel
  	ac97->build_ops = &patch_sigmatel_stac9758_ops;
  	/* FIXME: assume only page 0 for writing cache */
  	snd_ac97_update_bits(ac97, AC97_INT_PAGING, AC97_PAGE_MASK, AC97_PAGE_VENDOR);
  	for (i = 0; i < 4; i++)
  		snd_ac97_write_cache(ac97, regs[i], pregs[i]);
  
  	ac97->flags |= AC97_STEREO_MUTES;
  	return 0;
  }
  
  /*
   * Cirrus Logic CS42xx codecs
   */
  static const struct snd_kcontrol_new snd_ac97_cirrus_controls_spdif[2] = {
  	AC97_SINGLE(SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH), AC97_CSR_SPDIF, 15, 1, 0),
  	AC97_SINGLE(SNDRV_CTL_NAME_IEC958("",PLAYBACK,NONE) "AC97-SPSA", AC97_CSR_ACMODE, 0, 3, 0)
  };
  
  static int patch_cirrus_build_spdif(struct snd_ac97 * ac97)
  {
  	int err;
  
  	/* con mask, pro mask, default */
  	if ((err = patch_build_controls(ac97, &snd_ac97_controls_spdif[0], 3)) < 0)
  		return err;
  	/* switch, spsa */
  	if ((err = patch_build_controls(ac97, &snd_ac97_cirrus_controls_spdif[0], 1)) < 0)
  		return err;
  	switch (ac97->id & AC97_ID_CS_MASK) {
  	case AC97_ID_CS4205:
  		if ((err = patch_build_controls(ac97, &snd_ac97_cirrus_controls_spdif[1], 1)) < 0)
  			return err;
  		break;
  	}
  	/* set default PCM S/PDIF params */
  	/* consumer,PCM audio,no copyright,no preemphasis,PCM coder,original,48000Hz */
  	snd_ac97_write_cache(ac97, AC97_CSR_SPDIF, 0x0a20);
  	return 0;
  }
  
  static 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 */
  	if ((err = patch_build_controls(ac97, &snd_ac97_controls_spdif[0], 3)) < 0)
  		return err;
  	/* switch */
  	if ((err = patch_build_controls(ac97, &snd_ac97_conexant_controls_spdif[0], 1)) < 0)
  		return err;
  	/* set default PCM S/PDIF params */
  	/* consumer,PCM audio,no copyright,no preemphasis,PCM coder,original,48000Hz */
  	snd_ac97_write_cache(ac97, AC97_CXR_AUDIO_MISC,
  			     snd_ac97_read(ac97, AC97_CXR_AUDIO_MISC) & ~(AC97_CXR_SPDIFEN|AC97_CXR_COPYRGT|AC97_CXR_SPDIF_MASK));
  	return 0;
  }
  
  static 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 Device AD18xx, AD19xx codecs
   */
  #ifdef CONFIG_PM
  static void ad18xx_resume(struct snd_ac97 *ac97)
  {
  	static unsigned short setup_regs[] = {
  		AC97_AD_MISC, AC97_AD_SERIAL_CFG, AC97_AD_JACK_SPDIF,
  	};
  	int i, codec;
  
  	for (i = 0; i < (int)ARRAY_SIZE(setup_regs); i++) {
  		unsigned short reg = setup_regs[i];
  		if (test_bit(reg, ac97->reg_accessed)) {
  			snd_ac97_write(ac97, reg, ac97->regs[reg]);
  			snd_ac97_read(ac97, reg);
  		}
  	}
  
  	if (! (ac97->flags & AC97_AD_MULTI))
  		/* normal restore */
  		snd_ac97_restore_status(ac97);
  	else {
  		/* restore the AD18xx codec configurations */
  		for (codec = 0; codec < 3; codec++) {
  			if (! ac97->spec.ad18xx.id[codec])
  				continue;
  			/* select single codec */
  			snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000,
  					     ac97->spec.ad18xx.unchained[codec] | ac97->spec.ad18xx.chained[codec]);
  			ac97->bus->ops->write(ac97, AC97_AD_CODEC_CFG, ac97->spec.ad18xx.codec_cfg[codec]);
  		}
  		/* select all codecs */
  		snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000, 0x7000);
  
  		/* restore status */
  		for (i = 2; i < 0x7c ; i += 2) {
  			if (i == AC97_POWERDOWN || i == AC97_EXTENDED_ID)
  				continue;
  			if (test_bit(i, ac97->reg_accessed)) {
  				/* handle multi codecs for AD18xx */
  				if (i == AC97_PCM) {
  					for (codec = 0; codec < 3; codec++) {
  						if (! ac97->spec.ad18xx.id[codec])
  							continue;
  						/* select single codec */
  						snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000,
  								     ac97->spec.ad18xx.unchained[codec] | ac97->spec.ad18xx.chained[codec]);
  						/* update PCM bits */
  						ac97->bus->ops->write(ac97, AC97_PCM, ac97->spec.ad18xx.pcmreg[codec]);
  					}
  					/* select all codecs */
  					snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000, 0x7000);
  					continue;
  				} else if (i == AC97_AD_TEST ||
  					   i == AC97_AD_CODEC_CFG ||
  					   i == AC97_AD_SERIAL_CFG)
  					continue; /* ignore */
  			}
  			snd_ac97_write(ac97, i, ac97->regs[i]);
  			snd_ac97_read(ac97, i);
  		}
  	}
  
  	snd_ac97_restore_iec958(ac97);
  }
  
  static void ad1888_resume(struct snd_ac97 *ac97)
  {
  	ad18xx_resume(ac97);
  	snd_ac97_write_cache(ac97, AC97_CODEC_CLASS_REV, 0x8080);
  }
  
  #endif
  
  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 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;
  
  	if ((err = patch_build_controls(ac97, snd_ac97_controls_ad1885, ARRAY_SIZE(snd_ac97_controls_ad1885))) < 0)
  		return err;
  	reset_tlv(ac97, "Headphone Playback Volume",
  		  db_scale_6bit_6db_max);
  	return 0;
  }
  
  static 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 char *texts[2] = { "AC-Link", "A/D Converter" };
  
  	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
  	uinfo->count = 1;
  	uinfo->value.enumerated.items = 2;
  	if (uinfo->value.enumerated.item > 1)
  		uinfo->value.enumerated.item = 1;
  	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
  	return 0;
  }
  
  static int snd_ac97_ad198x_spdif_source_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
  {
  	struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
  	unsigned short val;
  
  	val = ac97->regs[AC97_AD_SERIAL_CFG];
  	ucontrol->value.enumerated.item[0] = (val >> 2) & 1;
  	return 0;
  }
  
  static int snd_ac97_ad198x_spdif_source_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
  {
  	struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
  	unsigned short val;
  
  	if (ucontrol->value.enumerated.item[0] > 1)
  		return -EINVAL;
  	val = ucontrol->value.enumerated.item[0] << 2;
  	return snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x0004, val);
  }
  
  static const struct snd_kcontrol_new snd_ac97_ad198x_spdif_source = {
  	.iface	= SNDRV_CTL_ELEM_IFACE_MIXER,
  	.name	= SNDRV_CTL_NAME_IEC958("",PLAYBACK,NONE) "Source",
  	.info	= snd_ac97_ad198x_spdif_source_info,
  	.get	= snd_ac97_ad198x_spdif_source_get,
  	.put	= snd_ac97_ad198x_spdif_source_put,
  };
  
  static int patch_ad198x_post_spdif(struct snd_ac97 * ac97)
  {
   	return patch_build_controls(ac97, &snd_ac97_ad198x_spdif_source, 1);
  }
  
  static const struct snd_kcontrol_new snd_ac97_ad1981x_jack_sense[] = {
  	AC97_SINGLE("Headphone Jack Sense", AC97_AD_JACK_SPDIF, 11, 1, 0),
  	AC97_SINGLE("Line Jack Sense", AC97_AD_JACK_SPDIF, 12, 1, 0),
  };
  
  /* black list to avoid HP/Line jack-sense controls
   * (SS vendor << 16 | device)
   */
  static unsigned int ad1981_jacks_blacklist[] = {
  	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_blacklist))
  		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
  };
  
  /* white list to enable HP jack-sense bits
   * (SS vendor << 16 | device)
   */
  static unsigned int ad1981_jacks_whitelist[] = {
  	0x0e11005a, /* HP nc4000/4010 */
  	0x103c0890, /* HP nc6000 */
  	0x103c0938, /* HP nc4220 */
  	0x103c099c, /* HP nx6110 */
  	0x103c0944, /* HP nc6220 */
  	0x103c0934, /* HP nc8220 */
  	0x103c006d, /* HP nx9105 */
  	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_whitelist))
  		/* 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;
  
  	if ((err = patch_build_controls(ac97, &snd_ac97_ad198x_2cmic, 1)) < 0)
  		return err;
  	if (check_list(ac97, ad1981_jacks_blacklist))
  		return 0;
  	return patch_build_controls(ac97, snd_ac97_ad1981x_jack_sense,
  				    ARRAY_SIZE(snd_ac97_ad1981x_jack_sense));
  }
  
  static 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 char *texts[3] = {"Off", "6 -> 4", "6 -> 2"};
  
  	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
  	uinfo->count = 1;
  	uinfo->value.enumerated.items = 3;
  	if (uinfo->value.enumerated.item > 2)
  		uinfo->value.enumerated.item = 2;
  	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
  	return 0;
  }
  
  static int snd_ac97_ad1888_downmix_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
  {
  	struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
  	unsigned short val;
  
  	val = ac97->regs[AC97_AD_MISC];
  	if (!(val & AC97_AD198X_DMIX1))
  		ucontrol->value.enumerated.item[0] = 0;
  	else
  		ucontrol->value.enumerated.item[0] = 1 + ((val >> 8) & 1);
  	return 0;
  }
  
  static int snd_ac97_ad1888_downmix_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
  {
  	struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
  	unsigned short val;
  
  	if (ucontrol->value.enumerated.item[0] > 2)
  		return -EINVAL;
  	if (ucontrol->value.enumerated.item[0] == 0)
  		val = 0;
  	else
  		val = AC97_AD198X_DMIX1 |
  			((ucontrol->value.enumerated.item[0] - 1) << 8);
  	return snd_ac97_update_bits(ac97, AC97_AD_MISC,
  				    AC97_AD198X_DMIX0 | AC97_AD198X_DMIX1, val);
  }
  
  static void ad1888_update_jacks(struct snd_ac97 *ac97)
  {
  	unsigned short val = 0;
  	/* 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;
  
  	if ((err = patch_ad1888_specific(ac97)) < 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 char *texts[4] = {"High-Z", "3.7 V", "2.25 V", "0 V"};
  
  	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
  	uinfo->count = 1;
  	uinfo->value.enumerated.items = 4;
  	if (uinfo->value.enumerated.item > 3)
  		uinfo->value.enumerated.item = 3;
  	strcpy(uinfo->value.enumerated.name,
  	       texts[uinfo->value.enumerated.item]);
  	return 0;
  }
  
  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");
  
  	if ((err = patch_build_controls(ac97, &snd_ac97_ad198x_2cmic, 1)) < 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;
  
  	if ((err = patch_build_controls(ac97, &snd_ac97_ad198x_2cmic, 1)) < 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;
  
  	if ((err = patch_build_controls(ac97, snd_ac97_controls_alc650, ARRAY_SIZE(snd_ac97_controls_alc650))) < 0)
  		return err;
  	if (ac97->ext_id & AC97_EI_SPDIF) {
  		if ((err = patch_build_controls(ac97, snd_ac97_spdif_controls_alc650, ARRAY_SIZE(snd_ac97_spdif_controls_alc650))) < 0)
  			return err;
  	}
  	if (ac97->id != AC97_ID_ALC650F)
  		reset_tlv(ac97, "Master Playback Volume",
  			  db_scale_5bit_3db_max);
  	return 0;
  }
  
  static 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 char *texts_655[3] = { "PCM", "Analog In", "IEC958 In" };
  	static char *texts_658[4] = { "PCM", "Analog1 In", "Analog2 In", "IEC958 In" };
  	struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
  
  	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
  	uinfo->count = 1;
  	uinfo->value.enumerated.items = ac97->spec.dev_flags ? 4 : 3;
  	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
  		uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
  	strcpy(uinfo->value.enumerated.name,
  	       ac97->spec.dev_flags ?
  	       texts_658[uinfo->value.enumerated.item] :
  	       texts_655[uinfo->value.enumerated.item]);
  	return 0;
  }
  
  static int alc655_iec958_route_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
  {
  	struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
  	unsigned short val;
  
  	val = ac97->regs[AC97_ALC650_MULTICH];
  	val = (val >> 12) & 3;
  	if (ac97->spec.dev_flags && val == 3)
  		val = 0;
  	ucontrol->value.enumerated.item[0] = val;
  	return 0;
  }
  
  static int alc655_iec958_route_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
  {
  	struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
  
  	return ac97_update_bits_page(ac97, AC97_ALC650_MULTICH, 3 << 12,
  				     (unsigned short)ucontrol->value.enumerated.item[0] << 12,
  				     0);
  }
  
  static const struct snd_kcontrol_new snd_ac97_spdif_controls_alc655[] = {
          AC97_PAGE_SINGLE(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), AC97_ALC650_MULTICH, 11, 1, 0, 0),
  	/* disable this controls since it doesn't work as expected */
          /* AC97_PAGE_SINGLE("IEC958 Input Monitor", AC97_ALC650_MULTICH, 14, 1, 0, 0), */
  	{
  		.iface  = SNDRV_CTL_ELEM_IFACE_MIXER,
  		.name   = SNDRV_CTL_NAME_IEC958("",PLAYBACK,NONE) "Source",
  		.info   = alc655_iec958_route_info,
  		.get    = alc655_iec958_route_get,
  		.put    = alc655_iec958_route_put,
  	},
  };
  
  static int patch_alc655_specific(struct snd_ac97 * ac97)
  {
  	int err;
  
  	if ((err = patch_build_controls(ac97, snd_ac97_controls_alc655, ARRAY_SIZE(snd_ac97_controls_alc655))) < 0)
  		return err;
  	if (ac97->ext_id & AC97_EI_SPDIF) {
  		if ((err = patch_build_controls(ac97, snd_ac97_spdif_controls_alc655, ARRAY_SIZE(snd_ac97_spdif_controls_alc655))) < 0)
  			return err;
  	}
  	return 0;
  }
  
  static 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;
  
  	if ((err = patch_build_controls(ac97, snd_ac97_controls_alc850, ARRAY_SIZE(snd_ac97_controls_alc850))) < 0)
  		return err;
  	if (ac97->ext_id & AC97_EI_SPDIF) {
  		if ((err = patch_build_controls(ac97, snd_ac97_spdif_controls_alc655, ARRAY_SIZE(snd_ac97_spdif_controls_alc655))) < 0)
  			return err;
  	}
  	return 0;
  }
  
  static 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));
  }
  
  static const struct snd_ac97_build_ops patch_cm9738_ops = {
  	.build_specific	= patch_cm9738_specific,
  	.update_jacks = cm9738_update_jacks
  };
  
  static int patch_cm9738(struct snd_ac97 * ac97)
  {
  	ac97->build_ops = &patch_cm9738_ops;
  	/* FIXME: can anyone confirm below? */
  	/* CM9738 has no PCM volume although the register reacts */
  	ac97->flags |= AC97_HAS_NO_PCM_VOL;
  	snd_ac97_write_cache(ac97, AC97_PCM, 0x8000);
  
  	return 0;
  }
  
  static int snd_ac97_cmedia_spdif_playback_source_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
  {
  	static char *texts[] = { "Analog", "Digital" };
  
  	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
  	uinfo->count = 1;
  	uinfo->value.enumerated.items = 2;
  	if (uinfo->value.enumerated.item > 1)
  		uinfo->value.enumerated.item = 1;
  	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
  	return 0;
  }
  
  static int snd_ac97_cmedia_spdif_playback_source_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
  {
  	struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
  	unsigned short val;
  
  	val = ac97->regs[AC97_CM9739_SPDIF_CTRL];
  	ucontrol->value.enumerated.item[0] = (val >> 1) & 0x01;
  	return 0;
  }
  
  static int snd_ac97_cmedia_spdif_playback_source_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
  {
  	struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
  
  	return snd_ac97_update_bits(ac97, AC97_CM9739_SPDIF_CTRL,
  				    0x01 << 1, 
  				    (ucontrol->value.enumerated.item[0] & 0x01) << 1);
  }
  
  static const struct snd_kcontrol_new snd_ac97_cm9739_controls_spdif[] = {
  	/* BIT 0: SPDI_EN - always true */
  	{ /* BIT 1: SPDIFS */
  		.iface	= SNDRV_CTL_ELEM_IFACE_MIXER,
  		.name	= SNDRV_CTL_NAME_IEC958("",PLAYBACK,NONE) "Source",
  		.info	= snd_ac97_cmedia_spdif_playback_source_info,
  		.get	= snd_ac97_cmedia_spdif_playback_source_get,
  		.put	= snd_ac97_cmedia_spdif_playback_source_put,
  	},
  	/* BIT 2: IG_SPIV */
  	AC97_SINGLE(SNDRV_CTL_NAME_IEC958("",CAPTURE,NONE) "Valid Switch", AC97_CM9739_SPDIF_CTRL, 2, 1, 0),
  	/* BIT 3: SPI2F */
  	AC97_SINGLE(SNDRV_CTL_NAME_IEC958("",CAPTURE,NONE) "Monitor", AC97_CM9739_SPDIF_CTRL, 3, 1, 0), 
  	/* BIT 4: SPI2SDI */
  	AC97_SINGLE(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), AC97_CM9739_SPDIF_CTRL, 4, 1, 0),
  	/* BIT 8: SPD32 - 32bit SPDIF - not supported yet */
  };
  
  static void cm9739_update_jacks(struct snd_ac97 *ac97)
  {
  	/* shared Line-In / Surround Out */
  	snd_ac97_update_bits(ac97, AC97_CM9739_MULTI_CHAN, 1 << 10,
  			     is_shared_surrout(ac97) ? (1 << 10) : 0);
  	/* shared Mic In / Center/LFE Out **/
  	snd_ac97_update_bits(ac97, AC97_CM9739_MULTI_CHAN, 0x3000,
  			     is_shared_clfeout(ac97) ? 0x1000 : 0x2000);
  }
  
  static const struct snd_kcontrol_new snd_ac97_cm9739_controls[] = {
  	AC97_SURROUND_JACK_MODE_CTL,
  	AC97_CHANNEL_MODE_CTL,
  };
  
  static int patch_cm9739_specific(struct snd_ac97 * ac97)
  {
  	return patch_build_controls(ac97, snd_ac97_cm9739_controls, ARRAY_SIZE(snd_ac97_cm9739_controls));
  }
  
  static int patch_cm9739_post_spdif(struct snd_ac97 * ac97)
  {
  	return patch_build_controls(ac97, snd_ac97_cm9739_controls_spdif, ARRAY_SIZE(snd_ac97_cm9739_controls_spdif));
  }
  
  static const struct snd_ac97_build_ops patch_cm9739_ops = {
  	.build_specific	= patch_cm9739_specific,
  	.build_post_spdif = patch_cm9739_post_spdif,
  	.update_jacks = cm9739_update_jacks
  };
  
  static int patch_cm9739(struct snd_ac97 * ac97)
  {
  	unsigned short val;
  
  	ac97->build_ops = &patch_cm9739_ops;
  
  	/* CM9739/A has no Master and PCM volume although the register reacts */
  	ac97->flags |= AC97_HAS_NO_MASTER_VOL | AC97_HAS_NO_PCM_VOL;
  	snd_ac97_write_cache(ac97, AC97_MASTER, 0x8000);
  	snd_ac97_write_cache(ac97, AC97_PCM, 0x8000);
  
  	/* check spdif */
  	val = snd_ac97_read(ac97, AC97_EXTENDED_STATUS);
  	if (val & AC97_EA_SPCV) {
  		/* enable spdif in */
  		snd_ac97_write_cache(ac97, AC97_CM9739_SPDIF_CTRL,
  				     snd_ac97_read(ac97, AC97_CM9739_SPDIF_CTRL) | 0x01);
  		ac97->rates[AC97_RATES_SPDIF] = SNDRV_PCM_RATE_48000; /* 48k only */
  	} else {
  		ac97->ext_id &= ~AC97_EI_SPDIF; /* disable extended-id */
  		ac97->rates[AC97_RATES_SPDIF] = 0;
  	}
  
  	/* set-up multi channel */
  	/* bit 14: 0 = SPDIF, 1 = EAPD */
  	/* bit 13: enable internal vref output for mic */
  	/* bit 12: disable center/lfe (swithable) */
  	/* bit 10: disable surround/line (switchable) */
  	/* bit 9: mix 2 surround off */
  	/* bit 4: undocumented; 0 mutes the CM9739A, which defaults to 1 */
  	/* bit 3: undocumented; surround? */
  	/* bit 0: dB */
  	val = snd_ac97_read(ac97, AC97_CM9739_MULTI_CHAN) & (1 << 4);
  	val |= (1 << 3);
  	val |= (1 << 13);
  	if (! (ac97->ext_id & AC97_EI_SPDIF))
  		val |= (1 << 14);
  	snd_ac97_write_cache(ac97, AC97_CM9739_MULTI_CHAN, val);
  
  	/* FIXME: set up GPIO */
  	snd_ac97_write_cache(ac97, 0x70, 0x0100);
  	snd_ac97_write_cache(ac97, 0x72, 0x0020);
  	/* Special exception for ASUS W1000/CMI9739. It does not have an SPDIF in. */
  	if (ac97->pci &&
  	     ac97->subsystem_vendor == 0x1043 &&
  	     ac97->subsystem_device == 0x1843) {
  		snd_ac97_write_cache(ac97, AC97_CM9739_SPDIF_CTRL,
  			snd_ac97_read(ac97, AC97_CM9739_SPDIF_CTRL) & ~0x01);
  		snd_ac97_write_cache(ac97, AC97_CM9739_MULTI_CHAN,
  			snd_ac97_read(ac97, AC97_CM9739_MULTI_CHAN) | (1 << 14));
  	}
  
  	return 0;
  }
  
  #define AC97_CM9761_MULTI_CHAN	0x64
  #define AC97_CM9761_FUNC	0x66
  #define AC97_CM9761_SPDIF_CTRL	0x6c
  
  static void cm9761_update_jacks(struct snd_ac97 *ac97)
  {
  	/* FIXME: check the bits for each model
  	 *        model 83 is confirmed to work
  	 */
  	static unsigned short surr_on[3][2] = {
  		{ 0x0008, 0x0000 }, /* 9761-78 & 82 */
  		{ 0x0000, 0x0008 }, /* 9761-82 rev.B */
  		{ 0x0000, 0x0008 }, /* 9761-83 */
  	};
  	static unsigned short clfe_on[3][2] = {
  		{ 0x0000, 0x1000 }, /* 9761-78 & 82 */
  		{ 0x1000, 0x0000 }, /* 9761-82 rev.B */
  		{ 0x0000, 0x1000 }, /* 9761-83 */
  	};
  	static unsigned short surr_shared[3][2] = {
  		{ 0x0000, 0x0400 }, /* 9761-78 & 82 */
  		{ 0x0000, 0x0400 }, /* 9761-82 rev.B */
  		{ 0x0000, 0x0400 }, /* 9761-83 */
  	};
  	static unsigned short clfe_shared[3][2] = {
  		{ 0x2000, 0x0880 }, /* 9761-78 & 82 */
  		{ 0x0000, 0x2880 }, /* 9761-82 rev.B */
  		{ 0x2000, 0x0800 }, /* 9761-83 */
  	};
  	unsigned short val = 0;
  
  	val |= surr_on[ac97->spec.dev_flags][is_surround_on(ac97)];
  	val |= clfe_on[ac97->spec.dev_flags][is_clfe_on(ac97)];
  	val |= surr_shared[ac97->spec.dev_flags][is_shared_surrout(ac97)];
  	val |= clfe_shared[ac97->spec.dev_flags][is_shared_clfeout(ac97)];
  
  	snd_ac97_update_bits(ac97, AC97_CM9761_MULTI_CHAN, 0x3c88, val);
  }
  
  static const struct snd_kcontrol_new snd_ac97_cm9761_controls[] = {
  	AC97_SURROUND_JACK_MODE_CTL,
  	AC97_CHANNEL_MODE_CTL,
  };
  
  static int cm9761_spdif_out_source_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
  {
  	static char *texts[] = { "AC-Link", "ADC", "SPDIF-In" };
  
  	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
  	uinfo->count = 1;
  	uinfo->value.enumerated.items = 3;
  	if (uinfo->value.enumerated.item > 2)
  		uinfo->value.enumerated.item = 2;
  	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
  	return 0;
  }
  
  static int cm9761_spdif_out_source_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
  {
  	struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
  
  	if (ac97->regs[AC97_CM9761_FUNC] & 0x1)
  		ucontrol->value.enumerated.item[0] = 2; /* SPDIF-loopback */
  	else if (ac97->regs[AC97_CM9761_SPDIF_CTRL] & 0x2)
  		ucontrol->value.enumerated.item[0] = 1; /* ADC loopback */
  	else
  		ucontrol->value.enumerated.item[0] = 0; /* AC-link */
  	return 0;
  }
  
  static int cm9761_spdif_out_source_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
  {
  	struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
  
  	if (ucontrol->value.enumerated.item[0] == 2)
  		return snd_ac97_update_bits(ac97, AC97_CM9761_FUNC, 0x1, 0x1);
  	snd_ac97_update_bits(ac97, AC97_CM9761_FUNC, 0x1, 0);
  	return snd_ac97_update_bits(ac97, AC97_CM9761_SPDIF_CTRL, 0x2,
  				    ucontrol->value.enumerated.item[0] == 1 ? 0x2 : 0);
  }
  
  static const char *cm9761_dac_clock[] = { "AC-Link", "SPDIF-In", "Both" };
  static const struct ac97_enum cm9761_dac_clock_enum =
  	AC97_ENUM_SINGLE(AC97_CM9761_SPDIF_CTRL, 9, 3, cm9761_dac_clock);
  
  static const struct snd_kcontrol_new snd_ac97_cm9761_controls_spdif[] = {
  	{ /* BIT 1: SPDIFS */
  		.iface	= SNDRV_CTL_ELEM_IFACE_MIXER,
  		.name	= SNDRV_CTL_NAME_IEC958("",PLAYBACK,NONE) "Source",
  		.info = cm9761_spdif_out_source_info,
  		.get = cm9761_spdif_out_source_get,
  		.put = cm9761_spdif_out_source_put,
  	},
  	/* BIT 2: IG_SPIV */
  	AC97_SINGLE(SNDRV_CTL_NAME_IEC958("",CAPTURE,NONE) "Valid Switch", AC97_CM9761_SPDIF_CTRL, 2, 1, 0),
  	/* BIT 3: SPI2F */
  	AC97_SINGLE(SNDRV_CTL_NAME_IEC958("",CAPTURE,NONE) "Monitor", AC97_CM9761_SPDIF_CTRL, 3, 1, 0), 
  	/* BIT 4: SPI2SDI */
  	AC97_SINGLE(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), AC97_CM9761_SPDIF_CTRL, 4, 1, 0),
  	/* BIT 9-10: DAC_CTL */
  	AC97_ENUM("DAC Clock Source", cm9761_dac_clock_enum),
  };
  
  static int patch_cm9761_post_spdif(struct snd_ac97 * ac97)
  {
  	return patch_build_controls(ac97, snd_ac97_cm9761_controls_spdif, ARRAY_SIZE(snd_ac97_cm9761_controls_spdif));
  }
  
  static int patch_cm9761_specific(struct snd_ac97 * ac97)
  {
  	return patch_build_controls(ac97, snd_ac97_cm9761_controls, ARRAY_SIZE(snd_ac97_cm9761_controls));
  }
  
  static const struct snd_ac97_build_ops patch_cm9761_ops = {
  	.build_specific	= patch_cm9761_specific,
  	.build_post_spdif = patch_cm9761_post_spdif,
  	.update_jacks = cm9761_update_jacks
  };
  
  static int patch_cm9761(struct snd_ac97 *ac97)
  {
  	unsigned short val;
  
  	/* CM9761 has no PCM volume although the register reacts */
  	/* Master volume seems to have _some_ influence on the analog
  	 * input sounds
  	 */
  	ac97->flags |= /*AC97_HAS_NO_MASTER_VOL |*/ AC97_HAS_NO_PCM_VOL;
  	snd_ac97_write_cache(ac97, AC97_MASTER, 0x8808);
  	snd_ac97_write_cache(ac97, AC97_PCM, 0x8808);
  
  	ac97->spec.dev_flags = 0; /* 1 = model 82 revision B, 2 = model 83 */
  	if (ac97->id == AC97_ID_CM9761_82) {
  		unsigned short tmp;
  		/* check page 1, reg 0x60 */
  		val = snd_ac97_read(ac97, AC97_INT_PAGING);
  		snd_ac97_write_cache(ac97, AC97_INT_PAGING, (val & ~0x0f) | 0x01);
  		tmp = snd_ac97_read(ac97, 0x60);
  		ac97->spec.dev_flags = tmp & 1; /* revision B? */
  		snd_ac97_write_cache(ac97, AC97_INT_PAGING, val);
  	} else if (ac97->id == AC97_ID_CM9761_83)
  		ac97->spec.dev_flags = 2;
  
  	ac97->build_ops = &patch_cm9761_ops;
  
  	/* enable spdif */
  	/* force the SPDIF bit in ext_id - codec doesn't set this bit! */
          ac97->ext_id |= AC97_EI_SPDIF;
  	/* to be sure: we overwrite the ext status bits */
  	snd_ac97_write_cache(ac97, AC97_EXTENDED_STATUS, 0x05c0);
  	/* Don't set 0x0200 here.  This results in the silent analog output */
  	snd_ac97_write_cache(ac97, AC97_CM9761_SPDIF_CTRL, 0x0001); /* enable spdif-in */
  	ac97->rates[AC97_RATES_SPDIF] = SNDRV_PCM_RATE_48000; /* 48k only */
  
  	/* set-up multi channel */
  	/* bit 15: pc master beep off
  	 * bit 14: pin47 = EAPD/SPDIF
  	 * bit 13: vref ctl [= cm9739]
  	 * bit 12: CLFE control (reverted on rev B)
  	 * bit 11: Mic/center share (reverted on rev B)
  	 * bit 10: suddound/line share
  	 * bit  9: Analog-in mix -> surround
  	 * bit  8: Analog-in mix -> CLFE
  	 * bit  7: Mic/LFE share (mic/center/lfe)
  	 * bit  5: vref select (9761A)
  	 * bit  4: front control
  	 * bit  3: surround control (revereted with rev B)
  	 * bit  2: front mic
  	 * bit  1: stereo mic
  	 * bit  0: mic boost level (0=20dB, 1=30dB)
  	 */
  
  #if 0
  	if (ac97->spec.dev_flags)
  		val = 0x0214;
  	else
  		val = 0x321c;
  #endif
  	val = snd_ac97_read(ac97, AC97_CM9761_MULTI_CHAN);
  	val |= (1 << 4); /* front on */
  	snd_ac97_write_cache(ac97, AC97_CM9761_MULTI_CHAN, val);
  
  	/* FIXME: set up GPIO */
  	snd_ac97_write_cache(ac97, 0x70, 0x0100);
  	snd_ac97_write_cache(ac97, 0x72, 0x0020);
  
  	return 0;
  }
         
  #define AC97_CM9780_SIDE	0x60
  #define AC97_CM9780_JACK	0x62
  #define AC97_CM9780_MIXER	0x64
  #define AC97_CM9780_MULTI_CHAN	0x66
  #define AC97_CM9780_SPDIF	0x6c
  
  static const char *cm9780_ch_select[] = { "Front", "Side", "Center/LFE", "Rear" };
  static const struct ac97_enum cm9780_ch_select_enum =
  	AC97_ENUM_SINGLE(AC97_CM9780_MULTI_CHAN, 6, 4, cm9780_ch_select);
  static const struct snd_kcontrol_new cm9780_controls[] = {
  	AC97_DOUBLE("Side Playback Switch", AC97_CM9780_SIDE, 15, 7, 1, 1),
  	AC97_DOUBLE("Side Playback Volume", AC97_CM9780_SIDE, 8, 0, 31, 0),
  	AC97_ENUM("Side Playback Route", cm9780_ch_select_enum),
  };
  
  static int patch_cm9780_specific(struct snd_ac97 *ac97)
  {
  	return patch_build_controls(ac97, cm9780_controls, ARRAY_SIZE(cm9780_controls));
  }
  
  static const struct snd_ac97_build_ops patch_cm9780_ops = {
  	.build_specific	= patch_cm9780_specific,
  	.build_post_spdif = patch_cm9761_post_spdif	/* identical with CM9761 */
  };
  
  static int patch_cm9780(struct snd_ac97 *ac97)
  {
  	unsigned short val;
  
  	ac97->build_ops = &patch_cm9780_ops;
  
  	/* enable spdif */
  	if (ac97->ext_id & AC97_EI_SPDIF) {
  		ac97->rates[AC97_RATES_SPDIF] = SNDRV_PCM_RATE_48000; /* 48k only */
  		val = snd_ac97_read(ac97, AC97_CM9780_SPDIF);
  		val |= 0x1; /* SPDI_EN */
  		snd_ac97_write_cache(ac97, AC97_CM9780_SPDIF, val);
  	}
  
  	return 0;
  }
  
  /*
   * VIA VT1616 codec
   */
  static const struct snd_kcontrol_new snd_ac97_controls_vt1616[] = {
  AC97_SINGLE("DC Offset removal", 0x5a, 10, 1, 0),
  AC97_SINGLE("Alternate Level to Surround Out", 0x5a, 15, 1, 0),
  AC97_SINGLE("Downmix LFE and Center to Front", 0x5a, 12, 1, 0),
  AC97_SINGLE("Downmix Surround to Front", 0x5a, 11, 1, 0),
  };
  
  static const char *slave_vols_vt1616[] = {
  	"Front Playback Volume",
  	"Surround Playback Volume",
  	"Center Playback Volume",
  	"LFE Playback Volume",
  	NULL
  };
  
  static const char *slave_sws_vt1616[] = {
  	"Front Playback Switch",
  	"Surround Playback Switch",
  	"Center Playback Switch",
  	"LFE Playback Switch",
  	NULL
  };
  
  /* find a mixer control element with the given name */
  static struct snd_kcontrol *snd_ac97_find_mixer_ctl(struct snd_ac97 *ac97,
  						    const char *name)
  {
  	struct snd_ctl_elem_id id;
  	memset(&id, 0, sizeof(id));
  	id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
  	strcpy(id.name, name);
  	return snd_ctl_find_id(ac97->bus->card, &id);
  }
  
  /* create a virtual master control and add slaves */
  static int snd_ac97_add_vmaster(struct snd_ac97 *ac97, char *name,
  				const unsigned int *tlv, const char **slaves)
  {
  	struct snd_kcontrol *kctl;
  	const char **s;
  	int err;
  
  	kctl = snd_ctl_make_virtual_master(name, tlv);
  	if (!kctl)
  		return -ENOMEM;
  	err = snd_ctl_add(ac97->bus->card, kctl);
  	if (err < 0)
  		return err;
  
  	for (s = slaves; *s; s++) {
  		struct snd_kcontrol *sctl;
  
  		sctl = snd_ac97_find_mixer_ctl(ac97, *s);
  		if (!sctl) {
  			snd_printdd("Cannot find slave %s, skipped\n", *s);
  			continue;
  		}
  		err = snd_ctl_add_slave(kctl, sctl);
  		if (err < 0)
  			return err;
  	}
  	return 0;
  }
  
  static int patch_vt1616_specific(struct snd_ac97 * ac97)
  {
  	struct snd_kcontrol *kctl;
  	int err;
  
  	if (snd_ac97_try_bit(ac97, 0x5a, 9))
  		if ((err = patch_build_controls(ac97, &snd_ac97_controls_vt1616[0], 1)) < 0)
  			return err;
  	if ((err = patch_build_controls(ac97, &snd_ac97_controls_vt1616[1], ARRAY_SIZE(snd_ac97_controls_vt1616) - 1)) < 0)
  		return err;
  
  	/* There is already a misnamed master switch.  Rename it.  */
  	kctl = snd_ac97_find_mixer_ctl(ac97, "Master Playback Volume");
  	if (!kctl)
  		return -EINVAL;
  
  	snd_ac97_rename_vol_ctl(ac97, "Master Playback", "Front Playback");
  
  	err = snd_ac97_add_vmaster(ac97, "Master Playback Volume",
  				   kctl->tlv.p, slave_vols_vt1616);
  	if (err < 0)
  		return err;
  
  	err = snd_ac97_add_vmaster(ac97, "Master Playback Switch",
  				   NULL, slave_sws_vt1616);
  	if (err < 0)
  		return err;
  
  	return 0;
  }
  
  static const struct snd_ac97_build_ops patch_vt1616_ops = {
  	.build_specific	= patch_vt1616_specific
  };
  
  static int patch_vt1616(struct snd_ac97 * ac97)
  {
  	ac97->build_ops = &patch_vt1616_ops;
  	return 0;
  }
  
  /*
   * VT1617A codec
   */
  
  /*
   * unfortunately, the vt1617a stashes the twiddlers required for
   * noodling the i/o jacks on 2 different regs. that means that we can't
   * use the easy way provided by AC97_ENUM_DOUBLE() we have to write
   * are own funcs.
   *
   * NB: this is absolutely and utterly different from the vt1618. dunno
   * about the 1616.
   */
  
  /* copied from ac97_surround_jack_mode_info() */
  static int snd_ac97_vt1617a_smart51_info(struct snd_kcontrol *kcontrol,
  					 struct snd_ctl_elem_info *uinfo)
  {
  	/* ordering in this list reflects vt1617a docs for Reg 20 and
  	 * 7a and Table 6 that lays out the matrix NB WRT Table6: SM51
  	 * is SM51EN *AND* it's Bit14, not Bit15 so the table is very
  	 * counter-intuitive */ 
  
  	static const char* texts[] = { "LineIn Mic1", "LineIn Mic1 Mic3",
  				       "Surr LFE/C Mic3", "LineIn LFE/C Mic3",
  				       "LineIn Mic2", "LineIn Mic2 Mic1",
  				       "Surr LFE Mic1", "Surr LFE Mic1 Mic2"};
  	return ac97_enum_text_info(kcontrol, uinfo, texts, 8);
  }
  
  static int snd_ac97_vt1617a_smart51_get(struct snd_kcontrol *kcontrol,
  					struct snd_ctl_elem_value *ucontrol)
  {
  	ushort usSM51, usMS;  
  
  	struct snd_ac97 *pac97;
  	
  	pac97 = snd_kcontrol_chip(kcontrol); /* grab codec handle */
  
  	/* grab our desired bits, then mash them together in a manner
  	 * consistent with Table 6 on page 17 in the 1617a docs */
   
  	usSM51 = snd_ac97_read(pac97, 0x7a) >> 14;
  	usMS   = snd_ac97_read(pac97, 0x20) >> 8;
    
  	ucontrol->value.enumerated.item[0] = (usSM51 << 1) + usMS;
  
  	return 0;
  }
  
  static int snd_ac97_vt1617a_smart51_put(struct snd_kcontrol *kcontrol,
  					struct snd_ctl_elem_value *ucontrol)
  {
  	ushort usSM51, usMS, usReg;  
  
  	struct snd_ac97 *pac97;
  
  	pac97 = snd_kcontrol_chip(kcontrol); /* grab codec handle */
  
  	usSM51 = ucontrol->value.enumerated.item[0] >> 1;
  	usMS   = ucontrol->value.enumerated.item[0] &  1;
  
  	/* push our values into the register - consider that things will be left
  	 * in a funky state if the write fails */
  
  	usReg = snd_ac97_read(pac97, 0x7a);
  	snd_ac97_write_cache(pac97, 0x7a, (usReg & 0x3FFF) + (usSM51 << 14));
  	usReg = snd_ac97_read(pac97, 0x20);
  	snd_ac97_write_cache(pac97, 0x20, (usReg & 0xFEFF) + (usMS   <<  8));
  
  	return 0;
  }
  
  static const struct snd_kcontrol_new snd_ac97_controls_vt1617a[] = {
  
  	AC97_SINGLE("Center/LFE Exchange", 0x5a, 8, 1, 0),
  	/*
  	 * These are used to enable/disable surround sound on motherboards
  	 * that have 3 bidirectional analog jacks
  	 */
  	{
  		.iface         = SNDRV_CTL_ELEM_IFACE_MIXER,
  		.name          = "Smart 5.1 Select",
  		.info          = snd_ac97_vt1617a_smart51_info,
  		.get           = snd_ac97_vt1617a_smart51_get,
  		.put           = snd_ac97_vt1617a_smart51_put,
  	},
  };
  
  static int patch_vt1617a(struct snd_ac97 * ac97)
  {
  	int err = 0;
  	int val;
  
  	/* we choose to not fail out at this point, but we tell the
  	   caller when we return */
  
  	err = patch_build_controls(ac97, &snd_ac97_controls_vt1617a[0],
  				   ARRAY_SIZE(snd_ac97_controls_vt1617a));
  
  	/* bring analog power consumption to normal by turning off the
  	 * headphone amplifier, like WinXP driver for EPIA SP
  	 */
  	/* We need to check the bit before writing it.
  	 * On some (many?) hardwares, setting bit actually clears it!
  	 */
  	val = snd_ac97_read(ac97, 0x5c);
  	if (!(val & 0x20))
  		snd_ac97_write_cache(ac97, 0x5c, 0x20);
  
  	ac97->ext_id |= AC97_EI_SPDIF;	/* force the detection of spdif */
  	ac97->rates[AC97_RATES_SPDIF] = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000;
  	ac97->build_ops = &patch_vt1616_ops;
  
  	return err;
  }
  
  /* VIA VT1618 8 CHANNEL AC97 CODEC
   *
   * VIA implements 'Smart 5.1' completely differently on the 1618 than
   * it does on the 1617a. awesome! They seem to have sourced this
   * particular revision of the technology from somebody else, it's
   * called Universal Audio Jack and it shows up on some other folk's chips
   * as well.
   *
   * ordering in this list reflects vt1618 docs for Reg 60h and
   * the block diagram, DACs are as follows:
   *
   *        OUT_O -> Front,
   *	  OUT_1 -> Surround,
   *	  OUT_2 -> C/LFE
   *
   * Unlike the 1617a, each OUT has a consistent set of mappings
   * for all bitpatterns other than 00:
   *
   *        01       Unmixed Output
   *        10       Line In
   *        11       Mic  In
   *
   * Special Case of 00:
   *
   *        OUT_0    Mixed Output
   *        OUT_1    Reserved
   *        OUT_2    Reserved
   *
   * I have no idea what the hell Reserved does, but on an MSI
   * CN700T, i have to set it to get 5.1 output - YMMV, bad
   * shit may happen.
   *
   * If other chips use Universal Audio Jack, then this code might be applicable
   * to them.
   */
  
  struct vt1618_uaj_item {
  	unsigned short mask;
  	unsigned short shift;
  	const char *items[4];
  };
  
  /* This list reflects the vt1618 docs for Vendor Defined Register 0x60. */
  
  static struct vt1618_uaj_item vt1618_uaj[3] = {
  	{
  		/* speaker jack */
  		.mask  = 0x03,
  		.shift = 0,
  		.items = {
  			"Speaker Out", "DAC Unmixed Out", "Line In", "Mic In"
  		}
  	},
  	{
  		/* line jack */
  		.mask  = 0x0c,
  		.shift = 2,
  		.items = {
  			"Surround Out", "DAC Unmixed Out", "Line In", "Mic In"
  		}
  	},
  	{
  		/* mic jack */
  		.mask  = 0x30,
  		.shift = 4,
  		.items = {
  			"Center LFE Out", "DAC Unmixed Out", "Line In", "Mic In"
  		},
  	},
  };
  
  static int snd_ac97_vt1618_UAJ_info(struct snd_kcontrol *kcontrol,
  				    struct snd_ctl_elem_info *uinfo)
  {
  	return ac97_enum_text_info(kcontrol, uinfo,
  				   vt1618_uaj[kcontrol->private_value].items,
  				   4);
  }
  
  /* All of the vt1618 Universal Audio Jack twiddlers are on
   * Vendor Defined Register 0x60, page 0. The bits, and thus
   * the mask, are the only thing that changes
   */
  static int snd_ac97_vt1618_UAJ_get(struct snd_kcontrol *kcontrol,
  				   struct snd_ctl_elem_value *ucontrol)
  {
  	unsigned short datpag, uaj;
  	struct snd_ac97 *pac97 = snd_kcontrol_chip(kcontrol);
  
  	mutex_lock(&pac97->page_mutex);
  
  	datpag = snd_ac97_read(pac97, AC97_INT_PAGING) & AC97_PAGE_MASK;
  	snd_ac97_update_bits(pac97, AC97_INT_PAGING, AC97_PAGE_MASK, 0);
  
  	uaj = snd_ac97_read(pac97, 0x60) &
  		vt1618_uaj[kcontrol->private_value].mask;
  
  	snd_ac97_update_bits(pac97, AC97_INT_PAGING, AC97_PAGE_MASK, datpag);
  	mutex_unlock(&pac97->page_mutex);
  
  	ucontrol->value.enumerated.item[0] = uaj >>
  		vt1618_uaj[kcontrol->private_value].shift;
  
  	return 0;
  }
  
  static int snd_ac97_vt1618_UAJ_put(struct snd_kcontrol *kcontrol,
  				   struct snd_ctl_elem_value *ucontrol)
  {
  	return ac97_update_bits_page(snd_kcontrol_chip(kcontrol), 0x60,
  				     vt1618_uaj[kcontrol->private_value].mask,
  				     ucontrol->value.enumerated.item[0]<<
  				     vt1618_uaj[kcontrol->private_value].shift,
  				     0);
  }
  
  /* config aux in jack - not found on 3 jack motherboards or soundcards */
  
  static int snd_ac97_vt1618_aux_info(struct snd_kcontrol *kcontrol,
  				     struct snd_ctl_elem_info *uinfo)
  {
  	static const char *txt_aux[] = {"Aux In", "Back Surr Out"};
  
  	return ac97_enum_text_info(kcontrol, uinfo, txt_aux, 2);
  }
  
  static int snd_ac97_vt1618_aux_get(struct snd_kcontrol *kcontrol,
  				   struct snd_ctl_elem_value *ucontrol)
  {
  	ucontrol->value.enumerated.item[0] =
  		(snd_ac97_read(snd_kcontrol_chip(kcontrol), 0x5c) & 0x0008)>>3;
  	return 0;
  }
  
  static int snd_ac97_vt1618_aux_put(struct snd_kcontrol *kcontrol,
  				   struct snd_ctl_elem_value *ucontrol)
  {
  	/* toggle surround rear dac power */
  
  	snd_ac97_update_bits(snd_kcontrol_chip(kcontrol), 0x5c, 0x0008,
  			     ucontrol->value.enumerated.item[0] << 3);
  
  	/* toggle aux in surround rear out jack */
  
  	return snd_ac97_update_bits(snd_kcontrol_chip(kcontrol), 0x76, 0x0008,
  				    ucontrol->value.enumerated.item[0] << 3);
  }
  
  static const struct snd_kcontrol_new snd_ac97_controls_vt1618[] = {
  	AC97_SINGLE("Exchange Center/LFE", 0x5a,  8, 1,     0),
  	AC97_SINGLE("DC Offset",           0x5a, 10, 1,     0),
  	AC97_SINGLE("Soft Mute",           0x5c,  0, 1,     1),
  	AC97_SINGLE("Headphone Amp",       0x5c,  5, 1,     1),
  	AC97_DOUBLE("Back Surr Volume",    0x5e,  8, 0, 31, 1),
  	AC97_SINGLE("Back Surr Switch",    0x5e, 15, 1,     1),
  	{
  		.iface         = SNDRV_CTL_ELEM_IFACE_MIXER,
  		.name          = "Speaker Jack Mode",
  		.info          = snd_ac97_vt1618_UAJ_info,
  		.get           = snd_ac97_vt1618_UAJ_get,
  		.put           = snd_ac97_vt1618_UAJ_put,
  		.private_value = 0
  	},
  	{
  		.iface         = SNDRV_CTL_ELEM_IFACE_MIXER,
  		.name          = "Line Jack Mode",
  		.info          = snd_ac97_vt1618_UAJ_info,
  		.get           = snd_ac97_vt1618_UAJ_get,
  		.put           = snd_ac97_vt1618_UAJ_put,
  		.private_value = 1
  	},
  	{
  		.iface         = SNDRV_CTL_ELEM_IFACE_MIXER,
  		.name          = "Mic Jack Mode",
  		.info          = snd_ac97_vt1618_UAJ_info,
  		.get           = snd_ac97_vt1618_UAJ_get,
  		.put           = snd_ac97_vt1618_UAJ_put,
  		.private_value = 2
  	},
  	{
  		.iface         = SNDRV_CTL_ELEM_IFACE_MIXER,
  		.name          = "Aux Jack Mode",
  		.info          = snd_ac97_vt1618_aux_info,
  		.get           = snd_ac97_vt1618_aux_get,
  		.put           = snd_ac97_vt1618_aux_put,
  	}
  };
  
  static int patch_vt1618(struct snd_ac97 *ac97)
  {
  	return patch_build_controls(ac97, snd_ac97_controls_vt1618,
  				    ARRAY_SIZE(snd_ac97_controls_vt1618));
  }
  
  /*
   */
  static void it2646_update_jacks(struct snd_ac97 *ac97)
  {
  	/* shared Line-In / Surround Out */
  	snd_ac97_update_bits(ac97, 0x76, 1 << 9,
  			     is_shared_surrout(ac97) ? (1<<9) : 0);
  	/* shared Mic / Center/LFE Out */
  	snd_ac97_update_bits(ac97, 0x76, 1 << 10,
  			     is_shared_clfeout(ac97) ? (1<<10) : 0);
  }
  
  static const struct snd_kcontrol_new snd_ac97_controls_it2646[] = {
  	AC97_SURROUND_JACK_MODE_CTL,
  	AC97_CHANNEL_MODE_CTL,
  };
  
  static const struct snd_kcontrol_new snd_ac97_spdif_controls_it2646[] = {
  	AC97_SINGLE(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), 0x76, 11, 1, 0),
  	AC97_SINGLE("Analog to IEC958 Output", 0x76, 12, 1, 0),
  	AC97_SINGLE("IEC958 Input Monitor", 0x76, 13, 1, 0),
  };
  
  static int patch_it2646_specific(struct snd_ac97 * ac97)
  {
  	int err;
  	if ((err = patch_build_controls(ac97, snd_ac97_controls_it2646, ARRAY_SIZE(snd_ac97_controls_it2646))) < 0)
  		return err;
  	if ((err = patch_build_controls(ac97, snd_ac97_spdif_controls_it2646, ARRAY_SIZE(snd_ac97_spdif_controls_it2646))) < 0)
  		return err;
  	return 0;
  }
  
  static const struct snd_ac97_build_ops patch_it2646_ops = {
  	.build_specific	= patch_it2646_specific,
  	.update_jacks = it2646_update_jacks
  };
  
  static int patch_it2646(struct snd_ac97 * ac97)
  {
  	ac97->build_ops = &patch_it2646_ops;
  	/* full DAC volume */
  	snd_ac97_write_cache(ac97, 0x5E, 0x0808);
  	snd_ac97_write_cache(ac97, 0x7A, 0x0808);
  	return 0;
  }
  
  /*
   * Si3036 codec
   */
  
  #define AC97_SI3036_CHIP_ID     0x5a
  #define AC97_SI3036_LINE_CFG    0x5c
  
  static const struct snd_kcontrol_new snd_ac97_controls_si3036[] = {
  AC97_DOUBLE("Modem Speaker Volume", 0x5c, 14, 12, 3, 1)
  };
  
  static int patch_si3036_specific(struct snd_ac97 * ac97)
  {
  	int idx, err;
  	for (idx = 0; idx < ARRAY_SIZE(snd_ac97_controls_si3036); idx++)
  		if ((err = snd_ctl_add(ac97->bus->card, snd_ctl_new1(&snd_ac97_controls_si3036[idx], ac97))) < 0)
  			return err;
  	return 0;
  }
  
  static const struct snd_ac97_build_ops patch_si3036_ops = {
  	.build_specific	= patch_si3036_specific,
  };
  
  static int mpatch_si3036(struct snd_ac97 * ac97)
  {
  	ac97->build_ops = &patch_si3036_ops;
  	snd_ac97_write_cache(ac97, 0x5c, 0xf210 );
  	snd_ac97_write_cache(ac97, 0x68, 0);
  	return 0;
  }
  
  /*
   * LM 4550 Codec
   *
   * We use a static resolution table since LM4550 codec cannot be
   * properly autoprobed to determine the resolution via
   * check_volume_resolution().
   */
  
  static struct snd_ac97_res_table lm4550_restbl[] = {
  	{ AC97_MASTER, 0x1f1f },
  	{ AC97_HEADPHONE, 0x1f1f },
  	{ AC97_MASTER_MONO, 0x001f },
  	{ AC97_PC_BEEP, 0x001f },	/* LSB is ignored */
  	{ AC97_PHONE, 0x001f },
  	{ AC97_MIC, 0x001f },
  	{ AC97_LINE, 0x1f1f },
  	{ AC97_CD, 0x1f1f },
  	{ AC97_VIDEO, 0x1f1f },
  	{ AC97_AUX, 0x1f1f },
  	{ AC97_PCM, 0x1f1f },
  	{ AC97_REC_GAIN, 0x0f0f },
  	{ } /* terminator */
  };
  
  static int patch_lm4550(struct snd_ac97 *ac97)
  {
  	ac97->res_table = lm4550_restbl;
  	return 0;
  }
  
  /* 
   *  UCB1400 codec (http://www.semiconductors.philips.com/acrobat_download/datasheets/UCB1400-02.pdf)
   */
  static const struct snd_kcontrol_new snd_ac97_controls_ucb1400[] = {
  /* enable/disable headphone driver which allows direct connection to
     stereo headphone without the use of external DC blocking
     capacitors */
  AC97_SINGLE("Headphone Driver", 0x6a, 6, 1, 0),
  /* Filter used to compensate the DC offset is added in the ADC to remove idle
     tones from the audio band. */
  AC97_SINGLE("DC Filter", 0x6a, 4, 1, 0),
  /* Control smart-low-power mode feature. Allows automatic power down
     of unused blocks in the ADC analog front end and the PLL. */
  AC97_SINGLE("Smart Low Power Mode", 0x6c, 4, 3, 0),
  };
  
  static int patch_ucb1400_specific(struct snd_ac97 * ac97)
  {
  	int idx, err;
  	for (idx = 0; idx < ARRAY_SIZE(snd_ac97_controls_ucb1400); idx++)
  		if ((err = snd_ctl_add(ac97->bus->card, snd_ctl_new1(&snd_ac97_controls_ucb1400[idx], ac97))) < 0)
  			return err;
  	return 0;
  }
  
  static const struct snd_ac97_build_ops patch_ucb1400_ops = {
  	.build_specific	= patch_ucb1400_specific,
  };
  
  static int patch_ucb1400(struct snd_ac97 * ac97)
  {
  	ac97->build_ops = &patch_ucb1400_ops;
  	/* enable headphone driver and smart low power mode by default */
  	snd_ac97_write_cache(ac97, 0x6a, 0x0050);
  	snd_ac97_write_cache(ac97, 0x6c, 0x0030);
  	return 0;
  }
  