Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 2309 insertions, 0 deletions

diff --git a/sound/pci/ac97/ac97_patch.c b/sound/pci/ac97/ac97_patch.c
new file mode 100644
index 00000000000..13c34a5d820
--- /dev/null
+++ b/sound/pci/ac97/ac97_patch.c
@@ -0,0 +1,2309 @@
+/*
+ *  Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ *  Universal interface for Audio Codec '97
+ *
+ *  For more details look to AC '97 component specification revision 2.2
+ *  by Intel Corporation (http://developer.intel.com) and to datasheets
+ *  for specific codecs.
+ *
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ *
+ */
+
+#include <sound/driver.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/control.h>
+#include <sound/ac97_codec.h>
+#include "ac97_patch.h"
+#include "ac97_id.h"
+#include "ac97_local.h"
+
+/*
+ *  Chip specific initialization
+ */
+
+static int patch_build_controls(ac97_t * ac97, const snd_kcontrol_new_t *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;
+}
+
+/* set to the page, update bits and restore the page */
+static int ac97_update_bits_page(ac97_t *ac97, unsigned short reg, unsigned short mask, unsigned short value, unsigned short page)
+{
+	unsigned short page_save;
+	int ret;
+
+	down(&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);
+	up(&ac97->page_mutex); /* unlock paging */
+	return ret;
+}
+
+/* The following snd_ac97_ymf753_... items added by David Shust (dshust@shustring.com) */
+
+/* It is possible to indicate to the Yamaha YMF753 the type of speakers being used. */
+static int snd_ac97_ymf753_info_speaker(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
+{
+	static char *texts[3] = {
+		"Standard", "Small", "Smaller"
+	};
+
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
+	uinfo->count = 1;
+	uinfo->value.enumerated.items = 3;
+	if (uinfo->value.enumerated.item > 2)
+		uinfo->value.enumerated.item = 2;
+	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
+	return 0;
+}
+
+static int snd_ac97_ymf753_get_speaker(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
+	unsigned short val;
+
+	val = ac97->regs[AC97_YMF753_3D_MODE_SEL];
+	val = (val >> 10) & 3;
+	if (val > 0)    /* 0 = invalid */
+		val--;
+	ucontrol->value.enumerated.item[0] = val;
+	return 0;
+}
+
+static int snd_ac97_ymf753_put_speaker(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
+	unsigned short val;
+
+	if (ucontrol->value.enumerated.item[0] > 2)
+		return -EINVAL;
+	val = (ucontrol->value.enumerated.item[0] + 1) << 10;
+	return snd_ac97_update(ac97, AC97_YMF753_3D_MODE_SEL, val);
+}
+
+static const snd_kcontrol_new_t snd_ac97_ymf753_controls_speaker =
+{
+	.iface  = SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name   = "3D Control - Speaker",
+	.info   = snd_ac97_ymf753_info_speaker,
+	.get    = snd_ac97_ymf753_get_speaker,
+	.put    = snd_ac97_ymf753_put_speaker,
+};
+
+/* It is possible to indicate to the Yamaha YMF753 the source to direct to the S/PDIF output. */
+static int snd_ac97_ymf753_spdif_source_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
+{
+	static char *texts[2] = { "AC-Link", "A/D Converter" };
+
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
+	uinfo->count = 1;
+	uinfo->value.enumerated.items = 2;
+	if (uinfo->value.enumerated.item > 1)
+		uinfo->value.enumerated.item = 1;
+	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
+	return 0;
+}
+
+static int snd_ac97_ymf753_spdif_source_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
+	unsigned short val;
+
+	val = ac97->regs[AC97_YMF753_DIT_CTRL2];
+	ucontrol->value.enumerated.item[0] = (val >> 1) & 1;
+	return 0;
+}
+
+static int snd_ac97_ymf753_spdif_source_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
+	unsigned short val;
+
+	if (ucontrol->value.enumerated.item[0] > 1)
+		return -EINVAL;
+	val = ucontrol->value.enumerated.item[0] << 1;
+	return snd_ac97_update_bits(ac97, AC97_YMF753_DIT_CTRL2, 0x0002, val);
+}
+
+/* The AC'97 spec states that the S/PDIF signal is to be output at pin 48.
+   The YMF753 will output the S/PDIF signal to pin 43, 47 (EAPD), or 48.
+   By default, no output pin is selected, and the S/PDIF signal is not output.
+   There is also a bit to mute S/PDIF output in a vendor-specific register. */
+static int snd_ac97_ymf753_spdif_output_pin_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * 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(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
+	unsigned short val;
+
+	val = ac97->regs[AC97_YMF753_DIT_CTRL2];
+	ucontrol->value.enumerated.item[0] = (val & 0x0008) ? 2 : (val & 0x0020) ? 1 : 0;
+	return 0;
+}
+
+static int snd_ac97_ymf753_spdif_output_pin_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
+	unsigned short val;
+
+	if (ucontrol->value.enumerated.item[0] > 2)
+		return -EINVAL;
+	val = (ucontrol->value.enumerated.item[0] == 2) ? 0x0008 :
+	      (ucontrol->value.enumerated.item[0] == 1) ? 0x0020 : 0;
+	return snd_ac97_update_bits(ac97, AC97_YMF753_DIT_CTRL2, 0x0028, val);
+	/* The following can be used to direct S/PDIF output to pin 47 (EAPD).
+	   snd_ac97_write_cache(ac97, 0x62, snd_ac97_read(ac97, 0x62) | 0x0008); */
+}
+
+static const snd_kcontrol_new_t snd_ac97_ymf753_controls_spdif[3] = {
+	{
+		.iface	= SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name	= SNDRV_CTL_NAME_IEC958("",PLAYBACK,NONE) "Source",
+		.info	= snd_ac97_ymf753_spdif_source_info,
+		.get	= snd_ac97_ymf753_spdif_source_get,
+		.put	= snd_ac97_ymf753_spdif_source_put,
+	},
+	{
+		.iface	= SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name	= SNDRV_CTL_NAME_IEC958("",PLAYBACK,NONE) "Output Pin",
+		.info	= snd_ac97_ymf753_spdif_output_pin_info,
+		.get	= snd_ac97_ymf753_spdif_output_pin_get,
+		.put	= snd_ac97_ymf753_spdif_output_pin_put,
+	},
+	AC97_SINGLE(SNDRV_CTL_NAME_IEC958("",NONE,NONE) "Mute", AC97_YMF753_DIT_CTRL2, 2, 1, 1)
+};
+
+static int patch_yamaha_ymf753_3d(ac97_t * ac97)
+{
+	snd_kcontrol_t *kctl;
+	int err;
+
+	if ((err = snd_ctl_add(ac97->bus->card, kctl = snd_ac97_cnew(&snd_ac97_controls_3d[0], ac97))) < 0)
+		return err;
+	strcpy(kctl->id.name, "3D Control - Wide");
+	kctl->private_value = AC97_SINGLE_VALUE(AC97_3D_CONTROL, 9, 7, 0);
+	snd_ac97_write_cache(ac97, AC97_3D_CONTROL, 0x0000);
+	if ((err = snd_ctl_add(ac97->bus->card, snd_ac97_cnew(&snd_ac97_ymf753_controls_speaker, ac97))) < 0)
+		return err;
+	snd_ac97_write_cache(ac97, AC97_YMF753_3D_MODE_SEL, 0x0c00);
+	return 0;
+}
+
+static int patch_yamaha_ymf753_post_spdif(ac97_t * ac97)
+{
+	int err;
+
+	if ((err = patch_build_controls(ac97, snd_ac97_ymf753_controls_spdif, ARRAY_SIZE(snd_ac97_ymf753_controls_spdif))) < 0)
+		return err;
+	return 0;
+}
+
+static struct snd_ac97_build_ops patch_yamaha_ymf753_ops = {
+	.build_3d	= patch_yamaha_ymf753_3d,
+	.build_post_spdif = patch_yamaha_ymf753_post_spdif
+};
+
+int patch_yamaha_ymf753(ac97_t * ac97)
+{
+	/* Patch for Yamaha YMF753, Copyright (c) by David Shust, dshust@shustring.com.
+	   This chip has nonstandard and extended behaviour with regard to its S/PDIF output.
+	   The AC'97 spec states that the S/PDIF signal is to be output at pin 48.
+	   The YMF753 will ouput the S/PDIF signal to pin 43, 47 (EAPD), or 48.
+	   By default, no output pin is selected, and the S/PDIF signal is not output.
+	   There is also a bit to mute S/PDIF output in a vendor-specific register.
+	*/
+	ac97->build_ops = &patch_yamaha_ymf753_ops;
+	ac97->caps |= AC97_BC_BASS_TREBLE;
+	ac97->caps |= 0x04 << 10; /* Yamaha 3D enhancement */
+	return 0;
+}
+
+/*
+ * May 2, 2003 Liam Girdwood <liam.girdwood@wolfsonmicro.com>
+ *  removed broken wolfson00 patch.
+ *  added support for WM9705,WM9708,WM9709,WM9710,WM9711,WM9712 and WM9717.
+ */
+
+int patch_wolfson03(ac97_t * ac97)
+{
+	/* This is known to work for the ViewSonic ViewPad 1000
+	   Randolph Bentson <bentson@holmsjoen.com> */
+
+	// WM9703/9707/9708/9717
+	snd_ac97_write_cache(ac97, AC97_WM97XX_FMIXER_VOL, 0x0808);
+	snd_ac97_write_cache(ac97, AC97_GENERAL_PURPOSE, 0x8000);
+	return 0;
+}
+  
+int patch_wolfson04(ac97_t * ac97)
+{
+	// WM9704M/9704Q
+	// set front and rear mixer volume
+	snd_ac97_write_cache(ac97, AC97_WM97XX_FMIXER_VOL, 0x0808);
+	snd_ac97_write_cache(ac97, AC97_WM9704_RMIXER_VOL, 0x0808);
+	
+	// patch for DVD noise
+	snd_ac97_write_cache(ac97, AC97_WM9704_TEST, 0x0200);
+ 
+	// init vol
+	snd_ac97_write_cache(ac97, AC97_WM9704_RPCM_VOL, 0x0808);
+ 
+	// set rear surround volume
+	snd_ac97_write_cache(ac97, AC97_SURROUND_MASTER, 0x0000);
+	return 0;
+}
+  
+int patch_wolfson05(ac97_t * ac97)
+{
+	// WM9705, WM9710
+	// set front mixer volume
+	snd_ac97_write_cache(ac97, AC97_WM97XX_FMIXER_VOL, 0x0808);
+	return 0;
+}
+
+int patch_wolfson11(ac97_t * ac97)
+{
+	// WM9711, WM9712
+	// set out3 volume
+	snd_ac97_write_cache(ac97, AC97_WM9711_OUT3VOL, 0x0808);
+	return 0;
+}
+
+static const char* wm9713_mic_mixer[] = {"Stereo", "Mic1", "Mic2", "Mute"};
+static const char* wm9713_rec_mux[] = {"Stereo", "Left", "Right", "Mute"};
+static const char* wm9713_rec_src_l[] = {"Mic1", "Mic2", "Line L", "Mono In", "HP Mix L", "Spk Mix", "Mono Mix", "Zh"};
+static const char* wm9713_rec_src_r[] = {"Mic1", "Mic2", "Line R", "Mono In", "HP Mix R", "Spk Mix", "Mono Mix", "Zh"};
+
+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_SINGLE(AC97_VIDEO, 3, 8, wm9713_rec_src_l),
+AC97_ENUM_SINGLE(AC97_VIDEO, 0, 8, wm9713_rec_src_r),
+};
+
+static const snd_kcontrol_new_t wm13_snd_ac97_controls_line_in[] = {
+AC97_DOUBLE("Line In Volume", AC97_PC_BEEP, 8, 0, 31, 1),
+AC97_SINGLE("Line In to Headphone Mute", AC97_PC_BEEP, 15, 1, 1),
+AC97_SINGLE("Line In to Speaker Mute", AC97_PC_BEEP, 14, 1, 1),
+AC97_SINGLE("Line In to Mono Mute", AC97_PC_BEEP, 13, 1, 1),
+};
+
+static const snd_kcontrol_new_t wm13_snd_ac97_controls_dac[] = {
+AC97_DOUBLE("DAC Volume", AC97_PHONE, 8, 0, 31, 1),
+AC97_SINGLE("DAC to Headphone Mute", AC97_PHONE, 15, 1, 1),
+AC97_SINGLE("DAC to Speaker Mute", AC97_PHONE, 14, 1, 1),
+AC97_SINGLE("DAC to Mono Mute", AC97_PHONE, 13, 1, 1),
+};
+
+static const snd_kcontrol_new_t wm13_snd_ac97_controls_mic[] = {
+AC97_SINGLE("MICA Volume", AC97_MIC, 8, 31, 1),
+AC97_SINGLE("MICB Volume", AC97_MIC, 0, 31, 1),
+AC97_SINGLE("MICA to Mono Mute", AC97_LINE, 7, 1, 1),
+AC97_SINGLE("MICB to Mono Mute", AC97_LINE, 6, 1, 1),
+AC97_SINGLE("MIC Boost (+20dB)", AC97_LINE, 5, 1, 1),
+AC97_ENUM("MIC Headphone Routing", wm9713_enum[0]),
+AC97_SINGLE("MIC Headphone Mixer Volume", AC97_LINE, 0, 7, 1)
+};
+
+static const snd_kcontrol_new_t wm13_snd_ac97_controls_adc[] = {
+AC97_SINGLE("ADC Mute", AC97_CD, 15, 1, 1),
+AC97_DOUBLE("Gain Step Size (1.5dB/0.75dB)", AC97_CD, 14, 6, 1, 1),
+AC97_DOUBLE("ADC Volume",AC97_CD, 8, 0, 15, 0),
+AC97_SINGLE("ADC Zero Cross", AC97_CD, 7, 1, 1),
+};
+
+static const snd_kcontrol_new_t wm13_snd_ac97_controls_recsel[] = {
+AC97_ENUM("Record to Headphone Path", wm9713_enum[1]),
+AC97_SINGLE("Record to Headphone Volume", AC97_VIDEO, 11, 7, 0),
+AC97_ENUM("Record to Mono Path", wm9713_enum[2]),
+AC97_SINGLE("Record to Mono Boost (+20dB)", AC97_VIDEO, 8, 1, 0),
+AC97_SINGLE("Record ADC Boost (+20dB)", AC97_VIDEO, 6, 1, 0),
+AC97_ENUM("Record Select Left", wm9713_enum[3]),
+AC97_ENUM("Record Select Right", wm9713_enum[4]),
+};
+
+static int patch_wolfson_wm9713_specific(ac97_t * ac97)
+{
+	int err, i;
+	
+	for (i = 0; i < ARRAY_SIZE(wm13_snd_ac97_controls_line_in); i++) {
+		if ((err = snd_ctl_add(ac97->bus->card, snd_ac97_cnew(&wm13_snd_ac97_controls_line_in[i], ac97))) < 0)
+			return err;
+	}
+	snd_ac97_write_cache(ac97, AC97_PC_BEEP, 0x0808);
+	
+	for (i = 0; i < ARRAY_SIZE(wm13_snd_ac97_controls_dac); i++) {
+		if ((err = snd_ctl_add(ac97->bus->card, snd_ac97_cnew(&wm13_snd_ac97_controls_dac[i], ac97))) < 0)
+			return err;
+	}
+	snd_ac97_write_cache(ac97, AC97_PHONE, 0x0808);
+	
+	for (i = 0; i < ARRAY_SIZE(wm13_snd_ac97_controls_mic); i++) {
+		if ((err = snd_ctl_add(ac97->bus->card, snd_ac97_cnew(&wm13_snd_ac97_controls_mic[i], ac97))) < 0)
+			return err;
+	}
+	snd_ac97_write_cache(ac97, AC97_MIC, 0x0808);
+	snd_ac97_write_cache(ac97, AC97_LINE, 0x00da);
+	
+	for (i = 0; i < ARRAY_SIZE(wm13_snd_ac97_controls_adc); i++) {
+		if ((err = snd_ctl_add(ac97->bus->card, snd_ac97_cnew(&wm13_snd_ac97_controls_adc[i], ac97))) < 0)
+			return err;
+	}
+	snd_ac97_write_cache(ac97, AC97_CD, 0x0808);
+	
+	for (i = 0; i < ARRAY_SIZE(wm13_snd_ac97_controls_recsel); i++) {
+		if ((err = snd_ctl_add(ac97->bus->card, snd_ac97_cnew(&wm13_snd_ac97_controls_recsel[i], ac97))) < 0)
+			return err;
+	}
+	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 (ac97_t * 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 (ac97_t * ac97)
+{
+	snd_ac97_write_cache(ac97, AC97_EXTENDED_MID, 0xda00);
+	snd_ac97_write_cache(ac97, AC97_EXTENDED_MSTATUS, 0x3810);
+	snd_ac97_write_cache(ac97, AC97_POWERDOWN, 0x0);
+}
+#endif
+
+static struct snd_ac97_build_ops patch_wolfson_wm9713_ops = {
+	.build_specific = patch_wolfson_wm9713_specific,
+#ifdef CONFIG_PM	
+	.suspend = patch_wolfson_wm9713_suspend,
+	.resume = patch_wolfson_wm9713_resume
+#endif
+};
+
+int patch_wolfson13(ac97_t * ac97)
+{
+	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;
+
+	snd_ac97_write_cache(ac97, AC97_EXTENDED_MID, 0xda00);
+	snd_ac97_write_cache(ac97, AC97_EXTENDED_MSTATUS, 0x3810);
+	snd_ac97_write_cache(ac97, AC97_POWERDOWN, 0x0);
+
+	return 0;
+}
+
+/*
+ * Tritech codec
+ */
+int patch_tritech_tr28028(ac97_t * 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(ac97_t * ac97)
+{
+	snd_kcontrol_t *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(ac97_t * ac97)
+{
+	snd_kcontrol_t *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 snd_kcontrol_new_t snd_ac97_sigmatel_4speaker =
+AC97_SINGLE("Sigmatel 4-Speaker Stereo Playback Switch", AC97_SIGMATEL_DAC2INVERT, 2, 1, 0);
+
+static const snd_kcontrol_new_t snd_ac97_sigmatel_phaseinvert =
+AC97_SINGLE("Sigmatel Surround Phase Inversion Playback Switch", AC97_SIGMATEL_DAC2INVERT, 3, 1, 0);
+
+static const snd_kcontrol_new_t 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(ac97_t * ac97)
+{
+	int err;
+
+	snd_ac97_write_cache(ac97, AC97_SIGMATEL_ANALOG, snd_ac97_read(ac97, AC97_SIGMATEL_ANALOG) & ~0x0003);
+	if (snd_ac97_try_bit(ac97, AC97_SIGMATEL_ANALOG, 1))
+		if ((err = patch_build_controls(ac97, &snd_ac97_sigmatel_controls[0], 1)) < 0)
+			return err;
+	if (snd_ac97_try_bit(ac97, AC97_SIGMATEL_ANALOG, 0))
+		if ((err = patch_build_controls(ac97, &snd_ac97_sigmatel_controls[1], 1)) < 0)
+			return err;
+	if (snd_ac97_try_bit(ac97, AC97_SIGMATEL_DAC2INVERT, 2))
+		if ((err = patch_build_controls(ac97, &snd_ac97_sigmatel_4speaker, 1)) < 0)
+			return err;
+	if (snd_ac97_try_bit(ac97, AC97_SIGMATEL_DAC2INVERT, 3))
+		if ((err = patch_build_controls(ac97, &snd_ac97_sigmatel_phaseinvert, 1)) < 0)
+			return err;
+	return 0;
+}
+
+static struct snd_ac97_build_ops patch_sigmatel_stac9700_ops = {
+	.build_3d	= patch_sigmatel_stac9700_3d,
+	.build_specific	= patch_sigmatel_stac97xx_specific
+};
+
+int patch_sigmatel_stac9700(ac97_t * ac97)
+{
+	ac97->build_ops = &patch_sigmatel_stac9700_ops;
+	return 0;
+}
+
+static int snd_ac97_stac9708_put_bias(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
+	int err;
+
+	down(&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);
+	up(&ac97->page_mutex);
+	return err;
+}
+
+static const snd_kcontrol_new_t 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(ac97_t *ac97)
+{
+	int err;
+
+	snd_ac97_rename_vol_ctl(ac97, "Headphone Playback", "Sigmatel Surround Playback");
+	if ((err = patch_build_controls(ac97, &snd_ac97_stac9708_bias_control, 1)) < 0)
+		return err;
+	return patch_sigmatel_stac97xx_specific(ac97);
+}
+
+static struct snd_ac97_build_ops patch_sigmatel_stac9708_ops = {
+	.build_3d	= patch_sigmatel_stac9708_3d,
+	.build_specific	= patch_sigmatel_stac9708_specific
+};
+
+int patch_sigmatel_stac9708(ac97_t * ac97)
+{
+	unsigned int codec72, codec6c;
+
+	ac97->build_ops = &patch_sigmatel_stac9708_ops;
+	ac97->caps |= 0x10;	/* HP (sigmatel surround) support */
+
+	codec72 = snd_ac97_read(ac97, AC97_SIGMATEL_BIAS2) & 0x8000;
+	codec6c = snd_ac97_read(ac97, AC97_SIGMATEL_ANALOG);
+
+	if ((codec72==0) && (codec6c==0)) {
+		snd_ac97_write_cache(ac97, AC97_SIGMATEL_CIC1, 0xabba);
+		snd_ac97_write_cache(ac97, AC97_SIGMATEL_CIC2, 0x1000);
+		snd_ac97_write_cache(ac97, AC97_SIGMATEL_BIAS1, 0xabba);
+		snd_ac97_write_cache(ac97, AC97_SIGMATEL_BIAS2, 0x0007);
+	} else if ((codec72==0x8000) && (codec6c==0)) {
+		snd_ac97_write_cache(ac97, AC97_SIGMATEL_CIC1, 0xabba);
+		snd_ac97_write_cache(ac97, AC97_SIGMATEL_CIC2, 0x1001);
+		snd_ac97_write_cache(ac97, AC97_SIGMATEL_DAC2INVERT, 0x0008);
+	} else if ((codec72==0x8000) && (codec6c==0x0080)) {
+		/* nothing */
+	}
+	snd_ac97_write_cache(ac97, AC97_SIGMATEL_MULTICHN, 0x0000);
+	return 0;
+}
+
+int patch_sigmatel_stac9721(ac97_t * ac97)
+{
+	ac97->build_ops = &patch_sigmatel_stac9700_ops;
+	if (snd_ac97_read(ac97, AC97_SIGMATEL_ANALOG) == 0) {
+		// patch for SigmaTel
+		snd_ac97_write_cache(ac97, AC97_SIGMATEL_CIC1, 0xabba);
+		snd_ac97_write_cache(ac97, AC97_SIGMATEL_CIC2, 0x4000);
+		snd_ac97_write_cache(ac97, AC97_SIGMATEL_BIAS1, 0xabba);
+		snd_ac97_write_cache(ac97, AC97_SIGMATEL_BIAS2, 0x0002);
+	}
+	snd_ac97_write_cache(ac97, AC97_SIGMATEL_MULTICHN, 0x0000);
+	return 0;
+}
+
+int patch_sigmatel_stac9744(ac97_t * ac97)
+{
+	// patch for SigmaTel
+	ac97->build_ops = &patch_sigmatel_stac9700_ops;
+	snd_ac97_write_cache(ac97, AC97_SIGMATEL_CIC1, 0xabba);
+	snd_ac97_write_cache(ac97, AC97_SIGMATEL_CIC2, 0x0000);	/* is this correct? --jk */
+	snd_ac97_write_cache(ac97, AC97_SIGMATEL_BIAS1, 0xabba);
+	snd_ac97_write_cache(ac97, AC97_SIGMATEL_BIAS2, 0x0002);
+	snd_ac97_write_cache(ac97, AC97_SIGMATEL_MULTICHN, 0x0000);
+	return 0;
+}
+
+int patch_sigmatel_stac9756(ac97_t * 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(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *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(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t* ucontrol)
+{
+	ac97_t *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(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	ac97_t *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(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *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(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t* ucontrol)
+{
+	ac97_t *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(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	ac97_t *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(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *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(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t* ucontrol)
+{
+	ac97_t *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(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	ac97_t *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 snd_kcontrol_new_t 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(ac97_t *ac97)
+{
+	int err;
+
+	err = patch_sigmatel_stac97xx_specific(ac97);
+	if (err < 0)
+		return err;
+	err = patch_build_controls(ac97, snd_ac97_sigmatel_stac9758_controls,
+				   ARRAY_SIZE(snd_ac97_sigmatel_stac9758_controls));
+	if (err < 0)
+		return err;
+	/* DAC-A direct */
+	snd_ac97_rename_vol_ctl(ac97, "Headphone Playback", "Front Playback");
+	/* DAC-A to Mix = PCM */
+	/* DAC-B direct = Surround */
+	/* DAC-B to Mix */
+	snd_ac97_rename_vol_ctl(ac97, "Video Playback", "Surround Mix Playback");
+	/* DAC-C direct = Center/LFE */
+
+	return 0;
+}
+
+static struct snd_ac97_build_ops patch_sigmatel_stac9758_ops = {
+	.build_3d	= patch_sigmatel_stac9700_3d,
+	.build_specific	= patch_sigmatel_stac9758_specific
+};
+
+int patch_sigmatel_stac9758(ac97_t * 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 snd_kcontrol_new_t 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(ac97_t * ac97)
+{
+	int err;
+
+	/* con mask, pro mask, default */
+	if ((err = patch_build_controls(ac97, &snd_ac97_controls_spdif[0], 3)) < 0)
+		return err;
+	/* switch, spsa */
+	if ((err = patch_build_controls(ac97, &snd_ac97_cirrus_controls_spdif[0], 1)) < 0)
+		return err;
+	switch (ac97->id & AC97_ID_CS_MASK) {
+	case AC97_ID_CS4205:
+		if ((err = patch_build_controls(ac97, &snd_ac97_cirrus_controls_spdif[1], 1)) < 0)
+			return err;
+		break;
+	}
+	/* set default PCM S/PDIF params */
+	/* consumer,PCM audio,no copyright,no preemphasis,PCM coder,original,48000Hz */
+	snd_ac97_write_cache(ac97, AC97_CSR_SPDIF, 0x0a20);
+	return 0;
+}
+
+static struct snd_ac97_build_ops patch_cirrus_ops = {
+	.build_spdif = patch_cirrus_build_spdif
+};
+
+int patch_cirrus_spdif(ac97_t * ac97)
+{
+	/* Basically, the cs4201/cs4205/cs4297a has non-standard sp/dif registers.
+	   WHY CAN'T ANYONE FOLLOW THE BLOODY SPEC?  *sigh*
+	   - sp/dif EA ID is not set, but sp/dif is always present.
+	   - enable/disable is spdif register bit 15.
+	   - sp/dif control register is 0x68.  differs from AC97:
+	   - valid is bit 14 (vs 15)
+	   - no DRS
+	   - only 44.1/48k [00 = 48, 01=44,1] (AC97 is 00=44.1, 10=48)
+	   - sp/dif ssource select is in 0x5e bits 0,1.
+	*/
+
+	ac97->build_ops = &patch_cirrus_ops;
+	ac97->flags |= AC97_CS_SPDIF; 
+	ac97->rates[AC97_RATES_SPDIF] &= ~SNDRV_PCM_RATE_32000;
+        ac97->ext_id |= AC97_EI_SPDIF;	/* force the detection of spdif */
+	snd_ac97_write_cache(ac97, AC97_CSR_ACMODE, 0x0080);
+	return 0;
+}
+
+int patch_cirrus_cs4299(ac97_t * ac97)
+{
+	/* force the detection of PC Beep */
+	ac97->flags |= AC97_HAS_PC_BEEP;
+	
+	return patch_cirrus_spdif(ac97);
+}
+
+/*
+ * Conexant codecs
+ */
+static const snd_kcontrol_new_t 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(ac97_t * ac97)
+{
+	int err;
+
+	/* con mask, pro mask, default */
+	if ((err = patch_build_controls(ac97, &snd_ac97_controls_spdif[0], 3)) < 0)
+		return err;
+	/* switch */
+	if ((err = patch_build_controls(ac97, &snd_ac97_conexant_controls_spdif[0], 1)) < 0)
+		return err;
+	/* set default PCM S/PDIF params */
+	/* consumer,PCM audio,no copyright,no preemphasis,PCM coder,original,48000Hz */
+	snd_ac97_write_cache(ac97, AC97_CXR_AUDIO_MISC,
+			     snd_ac97_read(ac97, AC97_CXR_AUDIO_MISC) & ~(AC97_CXR_SPDIFEN|AC97_CXR_COPYRGT|AC97_CXR_SPDIF_MASK));
+	return 0;
+}
+
+static struct snd_ac97_build_ops patch_conexant_ops = {
+	.build_spdif = patch_conexant_build_spdif
+};
+
+int patch_conexant(ac97_t * ac97)
+{
+	ac97->build_ops = &patch_conexant_ops;
+	ac97->flags |= AC97_CX_SPDIF;
+        ac97->ext_id |= AC97_EI_SPDIF;	/* force the detection of spdif */
+	ac97->rates[AC97_RATES_SPDIF] = SNDRV_PCM_RATE_48000; /* 48k only */
+	return 0;
+}
+
+/*
+ * Analog Device AD18xx, AD19xx codecs
+ */
+#ifdef CONFIG_PM
+static void ad18xx_resume(ac97_t *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);
+}
+#endif
+
+int patch_ad1819(ac97_t * ac97)
+{
+	unsigned short scfg;
+
+	// patch for Analog Devices
+	scfg = snd_ac97_read(ac97, AC97_AD_SERIAL_CFG);
+	snd_ac97_write_cache(ac97, AC97_AD_SERIAL_CFG, scfg | 0x7000); /* select all codecs */
+	return 0;
+}
+
+static unsigned short patch_ad1881_unchained(ac97_t * 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(ac97_t * 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(ac97_t * ac97, int unchained_idx, int cidx1, int cidx2)
+{
+	// already detected?
+	if (ac97->spec.ad18xx.unchained[cidx1] || ac97->spec.ad18xx.chained[cidx1])
+		cidx1 = -1;
+	if (ac97->spec.ad18xx.unchained[cidx2] || ac97->spec.ad18xx.chained[cidx2])
+		cidx2 = -1;
+	if (cidx1 < 0 && cidx2 < 0)
+		return;
+	// test for chained codecs
+	snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000,
+			     ac97->spec.ad18xx.unchained[unchained_idx]);
+	snd_ac97_write_cache(ac97, AC97_AD_CODEC_CFG, 0x0002);		// ID1C
+	ac97->spec.ad18xx.codec_cfg[unchained_idx] = 0x0002;
+	if (cidx1 >= 0) {
+		if (patch_ad1881_chained1(ac97, cidx1, 0x0006))		// SDIE | ID1C
+			patch_ad1881_chained1(ac97, cidx2, 0);
+		else if (patch_ad1881_chained1(ac97, cidx2, 0x0006))	// SDIE | ID1C
+			patch_ad1881_chained1(ac97, cidx1, 0);
+	} else if (cidx2 >= 0) {
+		patch_ad1881_chained1(ac97, cidx2, 0);
+	}
+}
+
+static struct snd_ac97_build_ops patch_ad1881_build_ops = {
+#ifdef CONFIG_PM
+	.resume = ad18xx_resume
+#endif
+};
+
+int patch_ad1881(ac97_t * 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));
+
+	snd_runtime_check(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 snd_kcontrol_new_t 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 int patch_ad1885_specific(ac97_t * ac97)
+{
+	int err;
+
+	if ((err = patch_build_controls(ac97, snd_ac97_controls_ad1885, ARRAY_SIZE(snd_ac97_controls_ad1885))) < 0)
+		return err;
+	return 0;
+}
+
+static struct snd_ac97_build_ops patch_ad1885_build_ops = {
+	.build_specific = &patch_ad1885_specific,
+#ifdef CONFIG_PM
+	.resume = ad18xx_resume
+#endif
+};
+
+int patch_ad1885(ac97_t * 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;
+}
+
+int patch_ad1886(ac97_t * ac97)
+{
+	patch_ad1881(ac97);
+	/* Presario700 workaround */
+	/* for Jack Sense/SPDIF Register misetting causing */
+	snd_ac97_write_cache(ac97, AC97_AD_JACK_SPDIF, 0x0010);
+	return 0;
+}
+
+/* MISC bits */
+#define AC97_AD198X_MBC		0x0003	/* mic boost */
+#define AC97_AD198X_MBC_20	0x0000	/* +20dB */
+#define AC97_AD198X_MBC_10	0x0001	/* +10dB */
+#define AC97_AD198X_MBC_30	0x0002	/* +30dB */
+#define AC97_AD198X_VREFD	0x0004	/* VREF high-Z */
+#define AC97_AD198X_VREFH	0x0008	/* 2.25V, 3.7V */
+#define AC97_AD198X_VREF_0	0x000c	/* 0V */
+#define AC97_AD198X_SRU		0x0010	/* sample rate unlock */
+#define AC97_AD198X_LOSEL	0x0020	/* LINE_OUT amplifiers input select */
+#define AC97_AD198X_2MIC	0x0040	/* 2-channel mic select */
+#define AC97_AD198X_SPRD	0x0080	/* SPREAD enable */
+#define AC97_AD198X_DMIX0	0x0100	/* downmix mode: 0 = 6-to-4, 1 = 6-to-2 downmix */
+#define AC97_AD198X_DMIX1	0x0200	/* downmix mode: 1 = enabled */
+#define AC97_AD198X_HPSEL	0x0400	/* headphone amplifier input select */
+#define AC97_AD198X_CLDIS	0x0800	/* center/lfe disable */
+#define AC97_AD198X_LODIS	0x1000	/* LINE_OUT disable */
+#define AC97_AD198X_MSPLT	0x2000	/* mute split */
+#define AC97_AD198X_AC97NC	0x4000	/* AC97 no compatible mode */
+#define AC97_AD198X_DACZ	0x8000	/* DAC zero-fill mode */
+
+
+static int snd_ac97_ad198x_spdif_source_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * 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(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	ac97_t *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(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	ac97_t *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 snd_kcontrol_new_t 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(ac97_t * ac97)
+{
+ 	return patch_build_controls(ac97, &snd_ac97_ad198x_spdif_source, 1);
+}
+
+static const snd_kcontrol_new_t 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),
+};
+
+static int patch_ad1981a_specific(ac97_t * ac97)
+{
+	return patch_build_controls(ac97, snd_ac97_ad1981x_jack_sense,
+				    ARRAY_SIZE(snd_ac97_ad1981x_jack_sense));
+}
+
+static struct snd_ac97_build_ops patch_ad1981a_build_ops = {
+	.build_post_spdif = patch_ad198x_post_spdif,
+	.build_specific = patch_ad1981a_specific,
+#ifdef CONFIG_PM
+	.resume = ad18xx_resume
+#endif
+};
+
+static void check_ad1981_hp_jack_sense(ac97_t *ac97)
+{
+	u32 subid = ((u32)ac97->subsystem_vendor << 16) | ac97->subsystem_device;
+	switch (subid) {
+	case 0x103c0890: /* HP nc6000 */
+	case 0x103c006d: /* HP nx9105 */
+	case 0x17340088: /* FSC Scenic-W */
+		/* enable headphone jack sense */
+		snd_ac97_update_bits(ac97, AC97_AD_JACK_SPDIF, 1<<11, 1<<11);
+		break;
+	}
+}
+
+int patch_ad1981a(ac97_t *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 snd_kcontrol_new_t snd_ac97_ad198x_2cmic =
+AC97_SINGLE("Stereo Mic", AC97_AD_MISC, 6, 1, 0);
+
+static int patch_ad1981b_specific(ac97_t *ac97)
+{
+	int err;
+
+	if ((err = patch_build_controls(ac97, &snd_ac97_ad198x_2cmic, 1)) < 0)
+		return err;
+	return patch_build_controls(ac97, snd_ac97_ad1981x_jack_sense,
+				    ARRAY_SIZE(snd_ac97_ad1981x_jack_sense));
+}
+
+static struct snd_ac97_build_ops patch_ad1981b_build_ops = {
+	.build_post_spdif = patch_ad198x_post_spdif,
+	.build_specific = patch_ad1981b_specific,
+#ifdef CONFIG_PM
+	.resume = ad18xx_resume
+#endif
+};
+
+int patch_ad1981b(ac97_t *ac97)
+{
+	patch_ad1881(ac97);
+	ac97->build_ops = &patch_ad1981b_build_ops;
+	snd_ac97_update_bits(ac97, AC97_AD_MISC, AC97_AD198X_MSPLT, AC97_AD198X_MSPLT);
+	ac97->flags |= AC97_STEREO_MUTES;
+	check_ad1981_hp_jack_sense(ac97);
+	return 0;
+}
+
+static int snd_ac97_ad1888_lohpsel_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 1;
+	return 0;
+}
+
+static int snd_ac97_ad1888_lohpsel_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t* ucontrol)
+{
+	ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
+	unsigned short val;
+
+	val = ac97->regs[AC97_AD_MISC];
+	ucontrol->value.integer.value[0] = !(val & AC97_AD198X_LOSEL);
+	return 0;
+}
+
+static int snd_ac97_ad1888_lohpsel_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
+	unsigned short val;
+
+	val = !ucontrol->value.integer.value[0]
+		? (AC97_AD198X_LOSEL | AC97_AD198X_HPSEL) : 0;
+	return snd_ac97_update_bits(ac97, AC97_AD_MISC,
+				    AC97_AD198X_LOSEL | AC97_AD198X_HPSEL, val);
+}
+
+static int snd_ac97_ad1888_downmix_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *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(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t* ucontrol)
+{
+	ac97_t *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(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	ac97_t *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 const snd_kcontrol_new_t 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("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_SINGLE("Surround Jack as Input", AC97_AD_MISC, 12, 1, 0),
+	AC97_SINGLE("Center/LFE Jack as Input", AC97_AD_MISC, 11, 1, 0),
+};
+
+static int patch_ad1888_specific(ac97_t *ac97)
+{
+	/* rename 0x04 as "Master" and 0x02 as "Master Surround" */
+	snd_ac97_rename_vol_ctl(ac97, "Master Playback", "Master Surround Playback");
+	snd_ac97_rename_vol_ctl(ac97, "Headphone Playback", "Master Playback");
+	return patch_build_controls(ac97, snd_ac97_ad1888_controls, ARRAY_SIZE(snd_ac97_ad1888_controls));
+}
+
+static struct snd_ac97_build_ops patch_ad1888_build_ops = {
+	.build_post_spdif = patch_ad198x_post_spdif,
+	.build_specific = patch_ad1888_specific,
+#ifdef CONFIG_PM
+	.resume = ad18xx_resume
+#endif
+};
+
+int patch_ad1888(ac97_t * ac97)
+{
+	unsigned short misc;
+	
+	patch_ad1881(ac97);
+	ac97->build_ops = &patch_ad1888_build_ops;
+	/* Switch FRONT/SURROUND LINE-OUT/HP-OUT default connection */
+	/* it seems that most vendors connect line-out connector to headphone out of AC'97 */
+	/* AD-compatible mode */
+	/* Stereo mutes enabled */
+	misc = snd_ac97_read(ac97, AC97_AD_MISC);
+	snd_ac97_write_cache(ac97, AC97_AD_MISC, misc |
+			     AC97_AD198X_LOSEL |
+			     AC97_AD198X_HPSEL |
+			     AC97_AD198X_MSPLT |
+			     AC97_AD198X_AC97NC);
+	ac97->flags |= AC97_STEREO_MUTES;
+	return 0;
+}
+
+static int patch_ad1980_specific(ac97_t *ac97)
+{
+	int err;
+
+	if ((err = patch_ad1888_specific(ac97)) < 0)
+		return err;
+	return patch_build_controls(ac97, &snd_ac97_ad198x_2cmic, 1);
+}
+
+static struct snd_ac97_build_ops patch_ad1980_build_ops = {
+	.build_post_spdif = patch_ad198x_post_spdif,
+	.build_specific = patch_ad1980_specific,
+#ifdef CONFIG_PM
+	.resume = ad18xx_resume
+#endif
+};
+
+int patch_ad1980(ac97_t * ac97)
+{
+	patch_ad1888(ac97);
+	ac97->build_ops = &patch_ad1980_build_ops;
+	return 0;
+}
+
+static const snd_kcontrol_new_t snd_ac97_ad1985_controls[] = {
+	AC97_SINGLE("Center/LFE Jack as Mic", AC97_AD_SERIAL_CFG, 9, 1, 0),
+	AC97_SINGLE("Exchange Center/LFE", AC97_AD_SERIAL_CFG, 3, 1, 0)
+};
+
+static int patch_ad1985_specific(ac97_t *ac97)
+{
+	int err;
+
+	if ((err = patch_ad1980_specific(ac97)) < 0)
+		return err;
+	return patch_build_controls(ac97, snd_ac97_ad1985_controls, ARRAY_SIZE(snd_ac97_ad1985_controls));
+}
+
+static struct snd_ac97_build_ops patch_ad1985_build_ops = {
+	.build_post_spdif = patch_ad198x_post_spdif,
+	.build_specific = patch_ad1985_specific,
+#ifdef CONFIG_PM
+	.resume = ad18xx_resume
+#endif
+};
+
+int patch_ad1985(ac97_t * ac97)
+{
+	unsigned short misc;
+	
+	patch_ad1881(ac97);
+	ac97->build_ops = &patch_ad1985_build_ops;
+	misc = snd_ac97_read(ac97, AC97_AD_MISC);
+	/* switch front/surround line-out/hp-out */
+	/* center/LFE, mic in 3.75V mode */
+	/* AD-compatible mode */
+	/* Stereo mutes enabled */
+	/* in accordance with ADI driver: misc | 0x5c28 */
+	snd_ac97_write_cache(ac97, AC97_AD_MISC, misc |
+			     AC97_AD198X_VREFH |
+			     AC97_AD198X_LOSEL |
+			     AC97_AD198X_HPSEL |
+			     AC97_AD198X_CLDIS |
+			     AC97_AD198X_LODIS |
+			     AC97_AD198X_MSPLT |
+			     AC97_AD198X_AC97NC);
+	ac97->flags |= AC97_STEREO_MUTES;
+	/* on AD1985 rev. 3, AC'97 revision bits are zero */
+	ac97->ext_id = (ac97->ext_id & ~AC97_EI_REV_MASK) | AC97_EI_REV_23;
+	return 0;
+}
+
+/*
+ * realtek ALC65x/850 codecs
+ */
+static int snd_ac97_alc650_mic_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+        ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
+        ucontrol->value.integer.value[0] = (ac97->regs[AC97_ALC650_MULTICH] >> 10) & 1;
+        return 0;
+}
+
+static int snd_ac97_alc650_mic_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+        ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
+	int change, val;
+	val = !!(snd_ac97_read(ac97, AC97_ALC650_MULTICH) & (1 << 10));
+	change = (ucontrol->value.integer.value[0] != val);
+	if (change) {
+		/* disable/enable vref */
+		snd_ac97_update_bits(ac97, AC97_ALC650_CLOCK, 1 << 12,
+				     ucontrol->value.integer.value[0] ? (1 << 12) : 0);
+		/* turn on/off center-on-mic */
+		snd_ac97_update_bits(ac97, AC97_ALC650_MULTICH, 1 << 10,
+				     ucontrol->value.integer.value[0] ? (1 << 10) : 0);
+		/* GPIO0 high for mic */
+		snd_ac97_update_bits(ac97, AC97_ALC650_GPIO_STATUS, 0x100,
+				     ucontrol->value.integer.value[0] ? 0 : 0x100);
+        }
+        return change;
+}
+
+static const snd_kcontrol_new_t 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 */
+	AC97_SINGLE("Line-In As Surround", AC97_ALC650_MULTICH, 9, 1, 0),
+	/* 10: mic, see below */
+	/* 11-13: in IEC958 controls */
+	AC97_SINGLE("Swap Surround Slot", AC97_ALC650_MULTICH, 14, 1, 0),
+#if 0 /* always set in patch_alc650 */
+	AC97_SINGLE("IEC958 Input Clock Enable", AC97_ALC650_CLOCK, 0, 1, 0),
+	AC97_SINGLE("IEC958 Input Pin Enable", AC97_ALC650_CLOCK, 1, 1, 0),
+	AC97_SINGLE("Surround DAC Switch", AC97_ALC650_SURR_DAC_VOL, 15, 1, 1),
+	AC97_DOUBLE("Surround DAC Volume", AC97_ALC650_SURR_DAC_VOL, 8, 0, 31, 1),
+	AC97_SINGLE("Center/LFE DAC Switch", AC97_ALC650_LFE_DAC_VOL, 15, 1, 1),
+	AC97_DOUBLE("Center/LFE DAC Volume", AC97_ALC650_LFE_DAC_VOL, 8, 0, 31, 1),
+#endif
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "Mic As Center/LFE",
+		.info = snd_ac97_info_volsw,
+		.get = snd_ac97_alc650_mic_get,
+		.put = snd_ac97_alc650_mic_put,
+		.private_value = AC97_SINGLE_VALUE(0, 0, 1, 0) /* only mask needed */
+	},
+};
+
+static const snd_kcontrol_new_t snd_ac97_spdif_controls_alc650[] = {
+        AC97_SINGLE("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 int patch_alc650_specific(ac97_t * 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;
+	}
+	return 0;
+}
+
+static struct snd_ac97_build_ops patch_alc650_ops = {
+	.build_specific	= patch_alc650_specific
+};
+
+int patch_alc650(ac97_t * 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)
+		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 int snd_ac97_alc655_mic_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+        ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
+        ucontrol->value.integer.value[0] = (ac97->regs[AC97_ALC650_MULTICH] >> 10) & 1;
+        return 0;
+}
+
+static int snd_ac97_alc655_mic_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+        ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
+
+	/* misc control; vrefout disable */
+	snd_ac97_update_bits(ac97, AC97_ALC650_CLOCK, 1 << 12,
+			     ucontrol->value.integer.value[0] ? (1 << 12) : 0);
+	return ac97_update_bits_page(ac97, AC97_ALC650_MULTICH, 1 << 10,
+				     ucontrol->value.integer.value[0] ? (1 << 10) : 0,
+				     0);
+}
+
+
+static const snd_kcontrol_new_t snd_ac97_controls_alc655[] = {
+	AC97_PAGE_SINGLE("Duplicate Front", AC97_ALC650_MULTICH, 0, 1, 0, 0),
+	AC97_PAGE_SINGLE("Line-In As Surround", AC97_ALC650_MULTICH, 9, 1, 0, 0),
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "Mic As Center/LFE",
+		.info = snd_ac97_info_volsw,
+		.get = snd_ac97_alc655_mic_get,
+		.put = snd_ac97_alc655_mic_put,
+		.private_value = AC97_SINGLE_VALUE(0, 0, 1, 0) /* only mask needed */
+	},
+};
+
+static int alc655_iec958_route_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
+{
+	static char *texts_655[3] = { "PCM", "Analog In", "IEC958 In" };
+	static char *texts_658[4] = { "PCM", "Analog1 In", "Analog2 In", "IEC958 In" };
+	ac97_t *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(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	ac97_t *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(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	ac97_t *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 snd_kcontrol_new_t snd_ac97_spdif_controls_alc655[] = {
+        AC97_PAGE_SINGLE("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   = "IEC958 Playback Route",
+		.info   = alc655_iec958_route_info,
+		.get    = alc655_iec958_route_get,
+		.put    = alc655_iec958_route_put,
+	},
+};
+
+static int patch_alc655_specific(ac97_t * ac97)
+{
+	int err;
+
+	if ((err = patch_build_controls(ac97, snd_ac97_controls_alc655, ARRAY_SIZE(snd_ac97_controls_alc655))) < 0)
+		return err;
+	if (ac97->ext_id & AC97_EI_SPDIF) {
+		if ((err = patch_build_controls(ac97, snd_ac97_spdif_controls_alc655, ARRAY_SIZE(snd_ac97_spdif_controls_alc655))) < 0)
+			return err;
+	}
+	return 0;
+}
+
+static struct snd_ac97_build_ops patch_alc655_ops = {
+	.build_specific	= patch_alc655_specific
+};
+
+int patch_alc655(ac97_t * ac97)
+{
+	unsigned int val;
+
+	ac97->spec.dev_flags = (ac97->id == 0x414c4780); /* ALC658 */
+
+	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->id == 0x414c4780) /* ALC658 */
+		val &= ~(1 << 1); /* Pin 47 is spdif input pin */
+	else /* ALC655 */
+		val |= (1 << 1); /* Pin 47 is spdif input pin */
+	val &= ~(1 << 12); /* vref enable */
+	snd_ac97_write_cache(ac97, 0x7a, val);
+	/* set default: spdif-in enabled,
+	   spdif-in monitor off, spdif-in PCM off
+	   center on mic off, surround on line-in off
+	   duplicate front off
+	*/
+	snd_ac97_write_cache(ac97, AC97_ALC650_MULTICH, 1<<15);
+
+	/* full DAC volume */
+	snd_ac97_write_cache(ac97, AC97_ALC650_SURR_DAC_VOL, 0x0808);
+	snd_ac97_write_cache(ac97, AC97_ALC650_LFE_DAC_VOL, 0x0808);
+	return 0;
+}
+
+
+#define AC97_ALC850_JACK_SELECT	0x76
+#define AC97_ALC850_MISC1	0x7a
+
+static int ac97_alc850_surround_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+        ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
+        ucontrol->value.integer.value[0] = ((ac97->regs[AC97_ALC850_JACK_SELECT] >> 12) & 7) == 2;
+        return 0;
+}
+
+static int ac97_alc850_surround_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+        ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
+
+	/* SURR 1kOhm (bit4), Amp (bit5) */
+	snd_ac97_update_bits(ac97, AC97_ALC850_MISC1, (1<<4)|(1<<5),
+			     ucontrol->value.integer.value[0] ? (1<<5) : (1<<4));
+	/* LINE-IN = 0, SURROUND = 2 */
+	return snd_ac97_update_bits(ac97, AC97_ALC850_JACK_SELECT, 7 << 12,
+				    ucontrol->value.integer.value[0] ? (2<<12) : (0<<12));
+}
+
+static int ac97_alc850_mic_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+        ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
+        ucontrol->value.integer.value[0] = ((ac97->regs[AC97_ALC850_JACK_SELECT] >> 4) & 7) == 2;
+        return 0;
+}
+
+static int ac97_alc850_mic_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+        ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
+
+	/* Vref disable (bit12), 1kOhm (bit13) */
+	snd_ac97_update_bits(ac97, AC97_ALC850_MISC1, (1<<12)|(1<<13),
+			     ucontrol->value.integer.value[0] ? (1<<12) : (1<<13));
+	/* MIC-IN = 1, CENTER-LFE = 2 */
+	return snd_ac97_update_bits(ac97, AC97_ALC850_JACK_SELECT, 7 << 4,
+				    ucontrol->value.integer.value[0] ? (2<<4) : (1<<4));
+}
+
+static const snd_kcontrol_new_t snd_ac97_controls_alc850[] = {
+	AC97_PAGE_SINGLE("Duplicate Front", AC97_ALC650_MULTICH, 0, 1, 0, 0),
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "Line-In As Surround",
+		.info = snd_ac97_info_volsw,
+		.get = ac97_alc850_surround_get,
+		.put = ac97_alc850_surround_put,
+		.private_value = AC97_SINGLE_VALUE(0, 0, 1, 0) /* only mask needed */
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "Mic As Center/LFE",
+		.info = snd_ac97_info_volsw,
+		.get = ac97_alc850_mic_get,
+		.put = ac97_alc850_mic_put,
+		.private_value = AC97_SINGLE_VALUE(0, 0, 1, 0) /* only mask needed */
+	},
+
+};
+
+static int patch_alc850_specific(ac97_t *ac97)
+{
+	int err;
+
+	if ((err = patch_build_controls(ac97, snd_ac97_controls_alc850, ARRAY_SIZE(snd_ac97_controls_alc850))) < 0)
+		return err;
+	if (ac97->ext_id & AC97_EI_SPDIF) {
+		if ((err = patch_build_controls(ac97, snd_ac97_spdif_controls_alc655, ARRAY_SIZE(snd_ac97_spdif_controls_alc655))) < 0)
+			return err;
+	}
+	return 0;
+}
+
+static struct snd_ac97_build_ops patch_alc850_ops = {
+	.build_specific	= patch_alc850_specific
+};
+
+int patch_alc850(ac97_t *ac97)
+{
+	ac97->build_ops = &patch_alc850_ops;
+
+	ac97->spec.dev_flags = 0; /* for IEC958 playback route - ALC655 compatible */
+
+	/* assume only page 0 for writing cache */
+	snd_ac97_update_bits(ac97, AC97_INT_PAGING, AC97_PAGE_MASK, AC97_PAGE_VENDOR);
+
+	/* adjust default values */
+	/* set default: spdif-in enabled,
+	   spdif-in monitor off, spdif-in PCM off
+	   center on mic off, surround on line-in off
+	   duplicate front off
+	*/
+	snd_ac97_write_cache(ac97, AC97_ALC650_MULTICH, 1<<15);
+	/* SURR_OUT: on, Surr 1kOhm: on, Surr Amp: off, Front 1kOhm: off
+	 * Front Amp: on, Vref: enable, Center 1kOhm: on, Mix: on
+	 */
+	snd_ac97_write_cache(ac97, 0x7a, (1<<1)|(1<<4)|(0<<5)|(1<<6)|
+			     (1<<7)|(0<<12)|(1<<13)|(0<<14));
+	/* detection UIO2,3: all path floating, UIO3: MIC, Vref2: disable,
+	 * UIO1: FRONT, Vref3: disable, UIO3: LINE, Front-Mic: mute
+	 */
+	snd_ac97_write_cache(ac97, 0x76, (0<<0)|(0<<2)|(1<<4)|(1<<7)|(2<<8)|
+			     (1<<11)|(0<<12)|(1<<15));
+
+	/* full DAC volume */
+	snd_ac97_write_cache(ac97, AC97_ALC650_SURR_DAC_VOL, 0x0808);
+	snd_ac97_write_cache(ac97, AC97_ALC650_LFE_DAC_VOL, 0x0808);
+	return 0;
+}
+
+
+/*
+ * C-Media CM97xx codecs
+ */
+static const snd_kcontrol_new_t snd_ac97_cm9738_controls[] = {
+	AC97_SINGLE("Line-In As Surround", AC97_CM9738_VENDOR_CTRL, 10, 1, 0),
+	AC97_SINGLE("Duplicate Front", AC97_CM9738_VENDOR_CTRL, 13, 1, 0),
+};
+
+static int patch_cm9738_specific(ac97_t * ac97)
+{
+	return patch_build_controls(ac97, snd_ac97_cm9738_controls, ARRAY_SIZE(snd_ac97_cm9738_controls));
+}
+
+static struct snd_ac97_build_ops patch_cm9738_ops = {
+	.build_specific	= patch_cm9738_specific
+};
+
+int patch_cm9738(ac97_t * 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(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * 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(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	ac97_t *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(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	ac97_t *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 snd_kcontrol_new_t 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 int snd_ac97_cm9739_center_mic_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
+	if (ac97->regs[AC97_CM9739_MULTI_CHAN] & 0x1000)
+		ucontrol->value.integer.value[0] = 1;
+	else
+		ucontrol->value.integer.value[0] = 0;
+	return 0;
+}
+
+static int snd_ac97_cm9739_center_mic_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
+	return snd_ac97_update_bits(ac97, AC97_CM9739_MULTI_CHAN, 0x3000,
+				    ucontrol->value.integer.value[0] ? 
+				    0x1000 : 0x2000);
+}
+
+static const snd_kcontrol_new_t snd_ac97_cm9739_controls[] = {
+	AC97_SINGLE("Line-In As Surround", AC97_CM9739_MULTI_CHAN, 10, 1, 0),
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "Mic As Center/LFE",
+		.info = snd_ac97_info_volsw,
+		.get = snd_ac97_cm9739_center_mic_get,
+		.put = snd_ac97_cm9739_center_mic_put,
+		.private_value = AC97_SINGLE_VALUE(0, 0, 1, 0) /* only mask needed */
+	},
+};
+
+static int patch_cm9739_specific(ac97_t * ac97)
+{
+	return patch_build_controls(ac97, snd_ac97_cm9739_controls, ARRAY_SIZE(snd_ac97_cm9739_controls));
+}
+
+static int patch_cm9739_post_spdif(ac97_t * ac97)
+{
+	return patch_build_controls(ac97, snd_ac97_cm9739_controls_spdif, ARRAY_SIZE(snd_ac97_cm9739_controls_spdif));
+}
+
+static struct snd_ac97_build_ops patch_cm9739_ops = {
+	.build_specific	= patch_cm9739_specific,
+	.build_post_spdif = patch_cm9739_post_spdif
+};
+
+int patch_cm9739(ac97_t * 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_SPDIF_CTRL	0x6c
+
+static int snd_ac97_cm9761_linein_rear_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
+	if (ac97->regs[AC97_CM9739_MULTI_CHAN] & 0x0400)
+		ucontrol->value.integer.value[0] = 1;
+	else
+		ucontrol->value.integer.value[0] = 0;
+	return 0;
+}
+
+static int snd_ac97_cm9761_linein_rear_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
+	unsigned short vals[2][2] = {
+		{ 0x0008, 0x0400 }, /* off, on */
+		{ 0x0000, 0x0408 }, /* off, on (9761-82 rev.B) */
+	};
+	return snd_ac97_update_bits(ac97, AC97_CM9739_MULTI_CHAN, 0x0408,
+				    vals[ac97->spec.dev_flags][!!ucontrol->value.integer.value[0]]);
+}
+
+static int snd_ac97_cm9761_center_mic_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
+	if (ac97->regs[AC97_CM9739_MULTI_CHAN] & 0x1000)
+		ucontrol->value.integer.value[0] = 1;
+	else
+		ucontrol->value.integer.value[0] = 0;
+	if (ac97->spec.dev_flags) /* 9761-82 rev.B */
+		ucontrol->value.integer.value[0] = !ucontrol->value.integer.value[0];
+	return 0;
+}
+
+static int snd_ac97_cm9761_center_mic_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
+	unsigned short vals[2][2] = {
+		{ 0x2000, 0x1880 }, /* off, on */
+		{ 0x1000, 0x2880 }, /* off, on (9761-82 rev.B) */
+	};
+	return snd_ac97_update_bits(ac97, AC97_CM9739_MULTI_CHAN, 0x3880,
+				    vals[ac97->spec.dev_flags][!!ucontrol->value.integer.value[0]]);
+}
+
+static const snd_kcontrol_new_t snd_ac97_cm9761_controls[] = {
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "Line-In As Surround",
+		.info = snd_ac97_info_volsw,
+		.get = snd_ac97_cm9761_linein_rear_get,
+		.put = snd_ac97_cm9761_linein_rear_put,
+		.private_value = AC97_SINGLE_VALUE(0, 0, 1, 0) /* only mask needed */
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "Mic As Center/LFE",
+		.info = snd_ac97_info_volsw,
+		.get = snd_ac97_cm9761_center_mic_get,
+		.put = snd_ac97_cm9761_center_mic_put,
+		.private_value = AC97_SINGLE_VALUE(0, 0, 1, 0) /* only mask needed */
+	},
+};
+
+static int patch_cm9761_specific(ac97_t * ac97)
+{
+	return patch_build_controls(ac97, snd_ac97_cm9761_controls, ARRAY_SIZE(snd_ac97_cm9761_controls));
+}
+
+static struct snd_ac97_build_ops patch_cm9761_ops = {
+	.build_specific	= patch_cm9761_specific,
+	.build_post_spdif = patch_cm9739_post_spdif /* hope it's identical... */
+};
+
+int patch_cm9761(ac97_t *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 */
+	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);
+	}
+
+	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, 0x0009);
+	ac97->rates[AC97_RATES_SPDIF] = SNDRV_PCM_RATE_48000; /* 48k only */
+
+	/* set-up multi channel */
+	/* bit 15: pc master beep off
+	 * bit 14: ??
+	 * bit 13: vref ctl [= cm9739]
+	 * bit 12: center/mic [= cm9739] (reverted on rev B)
+	 * bit 11: ?? (mic/center/lfe) (reverted on rev B)
+	 * bit 10: suddound/line [= cm9739]
+	 * bit  9: mix 2 surround
+	 * bit  8: ?
+	 * bit  7: ?? (mic/center/lfe)
+	 * bit  4: ?? (front)
+	 * bit  3: ?? (line-in/rear share) (revereted with rev B)
+	 * bit  2: ?? (surround)
+	 * bit  1: front mic
+	 * bit  0: mic boost
+	 */
+
+#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;
+}
+       
+
+/*
+ * VIA VT1616 codec
+ */
+static const snd_kcontrol_new_t snd_ac97_controls_vt1616[] = {
+AC97_SINGLE("DC Offset removal", 0x5a, 10, 1, 0),
+AC97_SINGLE("Alternate Level to Surround Out", 0x5a, 15, 1, 0),
+AC97_SINGLE("Downmix LFE and Center to Front", 0x5a, 12, 1, 0),
+AC97_SINGLE("Downmix Surround to Front", 0x5a, 11, 1, 0),
+};
+
+static int patch_vt1616_specific(ac97_t * ac97)
+{
+	int err;
+
+	if (snd_ac97_try_bit(ac97, 0x5a, 9))
+		if ((err = patch_build_controls(ac97, &snd_ac97_controls_vt1616[0], 1)) < 0)
+			return err;
+	if ((err = patch_build_controls(ac97, &snd_ac97_controls_vt1616[1], ARRAY_SIZE(snd_ac97_controls_vt1616) - 1)) < 0)
+		return err;
+	return 0;
+}
+
+static struct snd_ac97_build_ops patch_vt1616_ops = {
+	.build_specific	= patch_vt1616_specific
+};
+
+int patch_vt1616(ac97_t * ac97)
+{
+	ac97->build_ops = &patch_vt1616_ops;
+	return 0;
+}
+
+static const snd_kcontrol_new_t snd_ac97_controls_it2646[] = {
+	AC97_SINGLE("Line-In As Surround", 0x76, 9, 1, 0),
+	AC97_SINGLE("Mic As Center/LFE", 0x76, 10, 1, 0),
+};
+
+static const snd_kcontrol_new_t snd_ac97_spdif_controls_it2646[] = {
+	AC97_SINGLE("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(ac97_t * ac97)
+{
+	int err;
+	if ((err = patch_build_controls(ac97, snd_ac97_controls_it2646, ARRAY_SIZE(snd_ac97_controls_it2646))) < 0)
+		return err;
+	if ((err = patch_build_controls(ac97, snd_ac97_spdif_controls_it2646, ARRAY_SIZE(snd_ac97_spdif_controls_it2646))) < 0)
+		return err;
+	return 0;
+}
+
+static struct snd_ac97_build_ops patch_it2646_ops = {
+	.build_specific	= patch_it2646_specific
+};
+
+int patch_it2646(ac97_t * 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;
+}
+
+/* Si3036/8 specific registers */
+#define AC97_SI3036_CHIP_ID     0x5a
+
+int mpatch_si3036(ac97_t * ac97)
+{
+	//printk("mpatch_si3036: chip id = %x\n", snd_ac97_read(ac97, 0x5a));
+	snd_ac97_write_cache(ac97, 0x5c, 0xf210 );
+	snd_ac97_write_cache(ac97, 0x68, 0);
+	return 0;
+}