Merge branch 'topic/ice1724-quartet' into topic/hda

10 files changed, 1995 insertions, 78 deletions

diff --git a/sound/i2c/other/Makefile b/sound/i2c/other/Makefile
index 703d954..2dad40f 100644
--- a/sound/i2c/other/Makefile
+++ b/sound/i2c/other/Makefile
@@ -5,6 +5,7 @@
 
 snd-ak4114-objs := ak4114.o
 snd-ak4117-objs := ak4117.o
+snd-ak4113-objs := ak4113.o
 snd-ak4xxx-adda-objs := ak4xxx-adda.o
 snd-pt2258-objs := pt2258.o
 snd-tea575x-tuner-objs := tea575x-tuner.o
@@ -12,5 +13,5 @@ snd-tea575x-tuner-objs := tea575x-tuner.o
 # Module Dependency
 obj-$(CONFIG_SND_PDAUDIOCF) += snd-ak4117.o
 obj-$(CONFIG_SND_ICE1712) += snd-ak4xxx-adda.o
-obj-$(CONFIG_SND_ICE1724) += snd-ak4114.o snd-ak4xxx-adda.o snd-pt2258.o
+obj-$(CONFIG_SND_ICE1724) += snd-ak4114.o snd-ak4113.o snd-ak4xxx-adda.o snd-pt2258.o
 obj-$(CONFIG_SND_FM801_TEA575X) += snd-tea575x-tuner.o
diff --git a/sound/i2c/other/ak4113.c b/sound/i2c/other/ak4113.c
new file mode 100644
index 0000000..fff62cc
--- /dev/null
+++ b/sound/i2c/other/ak4113.c
@@ -0,0 +1,639 @@
+/*
+ *  Routines for control of the AK4113 via I2C/4-wire serial interface
+ *  IEC958 (S/PDIF) receiver by Asahi Kasei
+ *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
+ *  Copyright (c) by Pavel Hofman <pavel.hofman@ivitera.com>
+ *
+ *
+ *   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 <linux/slab.h>
+#include <linux/delay.h>
+#include <sound/core.h>
+#include <sound/control.h>
+#include <sound/pcm.h>
+#include <sound/ak4113.h>
+#include <sound/asoundef.h>
+#include <sound/info.h>
+
+MODULE_AUTHOR("Pavel Hofman <pavel.hofman@ivitera.com>");
+MODULE_DESCRIPTION("AK4113 IEC958 (S/PDIF) receiver by Asahi Kasei");
+MODULE_LICENSE("GPL");
+
+#define AK4113_ADDR			0x00 /* fixed address */
+
+static void ak4113_stats(struct work_struct *work);
+static void ak4113_init_regs(struct ak4113 *chip);
+
+
+static void reg_write(struct ak4113 *ak4113, unsigned char reg,
+		unsigned char val)
+{
+	ak4113->write(ak4113->private_data, reg, val);
+	if (reg < sizeof(ak4113->regmap))
+		ak4113->regmap[reg] = val;
+}
+
+static inline unsigned char reg_read(struct ak4113 *ak4113, unsigned char reg)
+{
+	return ak4113->read(ak4113->private_data, reg);
+}
+
+static void snd_ak4113_free(struct ak4113 *chip)
+{
+	chip->init = 1;	/* don't schedule new work */
+	mb();
+	cancel_delayed_work(&chip->work);
+	flush_scheduled_work();
+	kfree(chip);
+}
+
+static int snd_ak4113_dev_free(struct snd_device *device)
+{
+	struct ak4113 *chip = device->device_data;
+	snd_ak4113_free(chip);
+	return 0;
+}
+
+int snd_ak4113_create(struct snd_card *card, ak4113_read_t *read,
+		ak4113_write_t *write, const unsigned char pgm[5],
+		void *private_data, struct ak4113 **r_ak4113)
+{
+	struct ak4113 *chip;
+	int err = 0;
+	unsigned char reg;
+	static struct snd_device_ops ops = {
+		.dev_free =     snd_ak4113_dev_free,
+	};
+
+	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
+	if (chip == NULL)
+		return -ENOMEM;
+	spin_lock_init(&chip->lock);
+	chip->card = card;
+	chip->read = read;
+	chip->write = write;
+	chip->private_data = private_data;
+	INIT_DELAYED_WORK(&chip->work, ak4113_stats);
+
+	for (reg = 0; reg < AK4113_WRITABLE_REGS ; reg++)
+		chip->regmap[reg] = pgm[reg];
+	ak4113_init_regs(chip);
+
+	chip->rcs0 = reg_read(chip, AK4113_REG_RCS0) & ~(AK4113_QINT |
+			AK4113_CINT | AK4113_STC);
+	chip->rcs1 = reg_read(chip, AK4113_REG_RCS1);
+	chip->rcs2 = reg_read(chip, AK4113_REG_RCS2);
+	err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
+	if (err < 0)
+		goto __fail;
+
+	if (r_ak4113)
+		*r_ak4113 = chip;
+	return 0;
+
+__fail:
+	snd_ak4113_free(chip);
+	return err < 0 ? err : -EIO;
+}
+EXPORT_SYMBOL_GPL(snd_ak4113_create);
+
+void snd_ak4113_reg_write(struct ak4113 *chip, unsigned char reg,
+		unsigned char mask, unsigned char val)
+{
+	if (reg >= AK4113_WRITABLE_REGS)
+		return;
+	reg_write(chip, reg, (chip->regmap[reg] & ~mask) | val);
+}
+EXPORT_SYMBOL_GPL(snd_ak4113_reg_write);
+
+static void ak4113_init_regs(struct ak4113 *chip)
+{
+	unsigned char old = chip->regmap[AK4113_REG_PWRDN], reg;
+
+	/* bring the chip to reset state and powerdown state */
+	reg_write(chip, AK4113_REG_PWRDN, old & ~(AK4113_RST|AK4113_PWN));
+	udelay(200);
+	/* release reset, but leave powerdown */
+	reg_write(chip, AK4113_REG_PWRDN, (old | AK4113_RST) & ~AK4113_PWN);
+	udelay(200);
+	for (reg = 1; reg < AK4113_WRITABLE_REGS; reg++)
+		reg_write(chip, reg, chip->regmap[reg]);
+	/* release powerdown, everything is initialized now */
+	reg_write(chip, AK4113_REG_PWRDN, old | AK4113_RST | AK4113_PWN);
+}
+
+void snd_ak4113_reinit(struct ak4113 *chip)
+{
+	chip->init = 1;
+	mb();
+	flush_scheduled_work();
+	ak4113_init_regs(chip);
+	/* bring up statistics / event queing */
+	chip->init = 0;
+	if (chip->kctls[0])
+		schedule_delayed_work(&chip->work, HZ / 10);
+}
+EXPORT_SYMBOL_GPL(snd_ak4113_reinit);
+
+static unsigned int external_rate(unsigned char rcs1)
+{
+	switch (rcs1 & (AK4113_FS0|AK4113_FS1|AK4113_FS2|AK4113_FS3)) {
+	case AK4113_FS_8000HZ:
+		return 8000;
+	case AK4113_FS_11025HZ:
+		return 11025;
+	case AK4113_FS_16000HZ:
+		return 16000;
+	case AK4113_FS_22050HZ:
+		return 22050;
+	case AK4113_FS_24000HZ:
+		return 24000;
+	case AK4113_FS_32000HZ:
+		return 32000;
+	case AK4113_FS_44100HZ:
+		return 44100;
+	case AK4113_FS_48000HZ:
+		return 48000;
+	case AK4113_FS_64000HZ:
+		return 64000;
+	case AK4113_FS_88200HZ:
+		return 88200;
+	case AK4113_FS_96000HZ:
+		return 96000;
+	case AK4113_FS_176400HZ:
+		return 176400;
+	case AK4113_FS_192000HZ:
+		return 192000;
+	default:
+		return 0;
+	}
+}
+
+static int snd_ak4113_in_error_info(struct snd_kcontrol *kcontrol,
+				    struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = LONG_MAX;
+	return 0;
+}
+
+static int snd_ak4113_in_error_get(struct snd_kcontrol *kcontrol,
+				   struct snd_ctl_elem_value *ucontrol)
+{
+	struct ak4113 *chip = snd_kcontrol_chip(kcontrol);
+	long *ptr;
+
+	spin_lock_irq(&chip->lock);
+	ptr = (long *)(((char *)chip) + kcontrol->private_value);
+	ucontrol->value.integer.value[0] = *ptr;
+	*ptr = 0;
+	spin_unlock_irq(&chip->lock);
+	return 0;
+}
+
+#define snd_ak4113_in_bit_info		snd_ctl_boolean_mono_info
+
+static int snd_ak4113_in_bit_get(struct snd_kcontrol *kcontrol,
+				 struct snd_ctl_elem_value *ucontrol)
+{
+	struct ak4113 *chip = snd_kcontrol_chip(kcontrol);
+	unsigned char reg = kcontrol->private_value & 0xff;
+	unsigned char bit = (kcontrol->private_value >> 8) & 0xff;
+	unsigned char inv = (kcontrol->private_value >> 31) & 1;
+
+	ucontrol->value.integer.value[0] =
+		((reg_read(chip, reg) & (1 << bit)) ? 1 : 0) ^ inv;
+	return 0;
+}
+
+static int snd_ak4113_rx_info(struct snd_kcontrol *kcontrol,
+			      struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 5;
+	return 0;
+}
+
+static int snd_ak4113_rx_get(struct snd_kcontrol *kcontrol,
+			     struct snd_ctl_elem_value *ucontrol)
+{
+	struct ak4113 *chip = snd_kcontrol_chip(kcontrol);
+
+	ucontrol->value.integer.value[0] =
+		(AK4113_IPS(chip->regmap[AK4113_REG_IO1]));
+	return 0;
+}
+
+static int snd_ak4113_rx_put(struct snd_kcontrol *kcontrol,
+			     struct snd_ctl_elem_value *ucontrol)
+{
+	struct ak4113 *chip = snd_kcontrol_chip(kcontrol);
+	int change;
+	u8 old_val;
+
+	spin_lock_irq(&chip->lock);
+	old_val = chip->regmap[AK4113_REG_IO1];
+	change = ucontrol->value.integer.value[0] != AK4113_IPS(old_val);
+	if (change)
+		reg_write(chip, AK4113_REG_IO1,
+				(old_val & (~AK4113_IPS(0xff))) |
+				(AK4113_IPS(ucontrol->value.integer.value[0])));
+	spin_unlock_irq(&chip->lock);
+	return change;
+}
+
+static int snd_ak4113_rate_info(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 192000;
+	return 0;
+}
+
+static int snd_ak4113_rate_get(struct snd_kcontrol *kcontrol,
+			       struct snd_ctl_elem_value *ucontrol)
+{
+	struct ak4113 *chip = snd_kcontrol_chip(kcontrol);
+
+	ucontrol->value.integer.value[0] = external_rate(reg_read(chip,
+				AK4113_REG_RCS1));
+	return 0;
+}
+
+static int snd_ak4113_spdif_info(struct snd_kcontrol *kcontrol,
+		struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
+	uinfo->count = 1;
+	return 0;
+}
+
+static int snd_ak4113_spdif_get(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *ucontrol)
+{
+	struct ak4113 *chip = snd_kcontrol_chip(kcontrol);
+	unsigned i;
+
+	for (i = 0; i < AK4113_REG_RXCSB_SIZE; i++)
+		ucontrol->value.iec958.status[i] = reg_read(chip,
+				AK4113_REG_RXCSB0 + i);
+	return 0;
+}
+
+static int snd_ak4113_spdif_mask_info(struct snd_kcontrol *kcontrol,
+		struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
+	uinfo->count = 1;
+	return 0;
+}
+
+static int snd_ak4113_spdif_mask_get(struct snd_kcontrol *kcontrol,
+				      struct snd_ctl_elem_value *ucontrol)
+{
+	memset(ucontrol->value.iec958.status, 0xff, AK4113_REG_RXCSB_SIZE);
+	return 0;
+}
+
+static int snd_ak4113_spdif_pinfo(struct snd_kcontrol *kcontrol,
+		struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 0xffff;
+	uinfo->count = 4;
+	return 0;
+}
+
+static int snd_ak4113_spdif_pget(struct snd_kcontrol *kcontrol,
+				 struct snd_ctl_elem_value *ucontrol)
+{
+	struct ak4113 *chip = snd_kcontrol_chip(kcontrol);
+	unsigned short tmp;
+
+	ucontrol->value.integer.value[0] = 0xf8f2;
+	ucontrol->value.integer.value[1] = 0x4e1f;
+	tmp = reg_read(chip, AK4113_REG_Pc0) |
+		(reg_read(chip, AK4113_REG_Pc1) << 8);
+	ucontrol->value.integer.value[2] = tmp;
+	tmp = reg_read(chip, AK4113_REG_Pd0) |
+		(reg_read(chip, AK4113_REG_Pd1) << 8);
+	ucontrol->value.integer.value[3] = tmp;
+	return 0;
+}
+
+static int snd_ak4113_spdif_qinfo(struct snd_kcontrol *kcontrol,
+		struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
+	uinfo->count = AK4113_REG_QSUB_SIZE;
+	return 0;
+}
+
+static int snd_ak4113_spdif_qget(struct snd_kcontrol *kcontrol,
+				 struct snd_ctl_elem_value *ucontrol)
+{
+	struct ak4113 *chip = snd_kcontrol_chip(kcontrol);
+	unsigned i;
+
+	for (i = 0; i < AK4113_REG_QSUB_SIZE; i++)
+		ucontrol->value.bytes.data[i] = reg_read(chip,
+				AK4113_REG_QSUB_ADDR + i);
+	return 0;
+}
+
+/* Don't forget to change AK4113_CONTROLS define!!! */
+static struct snd_kcontrol_new snd_ak4113_iec958_controls[] = {
+{
+	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
+	.name =		"IEC958 Parity Errors",
+	.access =	SNDRV_CTL_ELEM_ACCESS_READ |
+		SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+	.info =		snd_ak4113_in_error_info,
+	.get =		snd_ak4113_in_error_get,
+	.private_value = offsetof(struct ak4113, parity_errors),
+},
+{
+	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
+	.name =		"IEC958 V-Bit Errors",
+	.access =	SNDRV_CTL_ELEM_ACCESS_READ |
+		SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+	.info =		snd_ak4113_in_error_info,
+	.get =		snd_ak4113_in_error_get,
+	.private_value = offsetof(struct ak4113, v_bit_errors),
+},
+{
+	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
+	.name =		"IEC958 C-CRC Errors",
+	.access =	SNDRV_CTL_ELEM_ACCESS_READ |
+		SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+	.info =		snd_ak4113_in_error_info,
+	.get =		snd_ak4113_in_error_get,
+	.private_value = offsetof(struct ak4113, ccrc_errors),
+},
+{
+	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
+	.name =		"IEC958 Q-CRC Errors",
+	.access =	SNDRV_CTL_ELEM_ACCESS_READ |
+		SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+	.info =		snd_ak4113_in_error_info,
+	.get =		snd_ak4113_in_error_get,
+	.private_value = offsetof(struct ak4113, qcrc_errors),
+},
+{
+	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
+	.name =		"IEC958 External Rate",
+	.access =	SNDRV_CTL_ELEM_ACCESS_READ |
+		SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+	.info =		snd_ak4113_rate_info,
+	.get =		snd_ak4113_rate_get,
+},
+{
+	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
+	.name =		SNDRV_CTL_NAME_IEC958("", CAPTURE, MASK),
+	.access =	SNDRV_CTL_ELEM_ACCESS_READ,
+	.info =		snd_ak4113_spdif_mask_info,
+	.get =		snd_ak4113_spdif_mask_get,
+},
+{
+	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
+	.name =		SNDRV_CTL_NAME_IEC958("", CAPTURE, DEFAULT),
+	.access =	SNDRV_CTL_ELEM_ACCESS_READ |
+		SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+	.info =		snd_ak4113_spdif_info,
+	.get =		snd_ak4113_spdif_get,
+},
+{
+	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
+	.name =		"IEC958 Preample Capture Default",
+	.access =	SNDRV_CTL_ELEM_ACCESS_READ |
+		SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+	.info =		snd_ak4113_spdif_pinfo,
+	.get =		snd_ak4113_spdif_pget,
+},
+{
+	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
+	.name =		"IEC958 Q-subcode Capture Default",
+	.access =	SNDRV_CTL_ELEM_ACCESS_READ |
+		SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+	.info =		snd_ak4113_spdif_qinfo,
+	.get =		snd_ak4113_spdif_qget,
+},
+{
+	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
+	.name =		"IEC958 Audio",
+	.access =	SNDRV_CTL_ELEM_ACCESS_READ |
+		SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+	.info =		snd_ak4113_in_bit_info,
+	.get =		snd_ak4113_in_bit_get,
+	.private_value = (1<<31) | (1<<8) | AK4113_REG_RCS0,
+},
+{
+	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
+	.name =		"IEC958 Non-PCM Bitstream",
+	.access =	SNDRV_CTL_ELEM_ACCESS_READ |
+		SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+	.info =		snd_ak4113_in_bit_info,
+	.get =		snd_ak4113_in_bit_get,
+	.private_value = (0<<8) | AK4113_REG_RCS1,
+},
+{
+	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
+	.name =		"IEC958 DTS Bitstream",
+	.access =	SNDRV_CTL_ELEM_ACCESS_READ |
+		SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+	.info =		snd_ak4113_in_bit_info,
+	.get =		snd_ak4113_in_bit_get,
+	.private_value = (1<<8) | AK4113_REG_RCS1,
+},
+{
+	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
+	.name =		"AK4113 Input Select",
+	.access =	SNDRV_CTL_ELEM_ACCESS_READ |
+		SNDRV_CTL_ELEM_ACCESS_WRITE,
+	.info =		snd_ak4113_rx_info,
+	.get =		snd_ak4113_rx_get,
+	.put =		snd_ak4113_rx_put,
+}
+};
+
+static void snd_ak4113_proc_regs_read(struct snd_info_entry *entry,
+		struct snd_info_buffer *buffer)
+{
+	struct ak4113 *ak4113 = entry->private_data;
+	int reg, val;
+	/* all ak4113 registers 0x00 - 0x1c */
+	for (reg = 0; reg < 0x1d; reg++) {
+		val = reg_read(ak4113, reg);
+		snd_iprintf(buffer, "0x%02x = 0x%02x\n", reg, val);
+	}
+}
+
+static void snd_ak4113_proc_init(struct ak4113 *ak4113)
+{
+	struct snd_info_entry *entry;
+	if (!snd_card_proc_new(ak4113->card, "ak4113", &entry))
+		snd_info_set_text_ops(entry, ak4113, snd_ak4113_proc_regs_read);
+}
+
+int snd_ak4113_build(struct ak4113 *ak4113,
+		struct snd_pcm_substream *cap_substream)
+{
+	struct snd_kcontrol *kctl;
+	unsigned int idx;
+	int err;
+
+	if (snd_BUG_ON(!cap_substream))
+		return -EINVAL;
+	ak4113->substream = cap_substream;
+	for (idx = 0; idx < AK4113_CONTROLS; idx++) {
+		kctl = snd_ctl_new1(&snd_ak4113_iec958_controls[idx], ak4113);
+		if (kctl == NULL)
+			return -ENOMEM;
+		kctl->id.device = cap_substream->pcm->device;
+		kctl->id.subdevice = cap_substream->number;
+		err = snd_ctl_add(ak4113->card, kctl);
+		if (err < 0)
+			return err;
+		ak4113->kctls[idx] = kctl;
+	}
+	snd_ak4113_proc_init(ak4113);
+	/* trigger workq */
+	schedule_delayed_work(&ak4113->work, HZ / 10);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_ak4113_build);
+
+int snd_ak4113_external_rate(struct ak4113 *ak4113)
+{
+	unsigned char rcs1;
+
+	rcs1 = reg_read(ak4113, AK4113_REG_RCS1);
+	return external_rate(rcs1);
+}
+EXPORT_SYMBOL_GPL(snd_ak4113_external_rate);
+
+int snd_ak4113_check_rate_and_errors(struct ak4113 *ak4113, unsigned int flags)
+{
+	struct snd_pcm_runtime *runtime =
+		ak4113->substream ? ak4113->substream->runtime : NULL;
+	unsigned long _flags;
+	int res = 0;
+	unsigned char rcs0, rcs1, rcs2;
+	unsigned char c0, c1;
+
+	rcs1 = reg_read(ak4113, AK4113_REG_RCS1);
+	if (flags & AK4113_CHECK_NO_STAT)
+		goto __rate;
+	rcs0 = reg_read(ak4113, AK4113_REG_RCS0);
+	rcs2 = reg_read(ak4113, AK4113_REG_RCS2);
+	spin_lock_irqsave(&ak4113->lock, _flags);
+	if (rcs0 & AK4113_PAR)
+		ak4113->parity_errors++;
+	if (rcs0 & AK4113_V)
+		ak4113->v_bit_errors++;
+	if (rcs2 & AK4113_CCRC)
+		ak4113->ccrc_errors++;
+	if (rcs2 & AK4113_QCRC)
+		ak4113->qcrc_errors++;
+	c0 = (ak4113->rcs0 & (AK4113_QINT | AK4113_CINT | AK4113_STC |
+				AK4113_AUDION | AK4113_AUTO | AK4113_UNLCK)) ^
+		(rcs0 & (AK4113_QINT | AK4113_CINT | AK4113_STC |
+			 AK4113_AUDION | AK4113_AUTO | AK4113_UNLCK));
+	c1 = (ak4113->rcs1 & (AK4113_DTSCD | AK4113_NPCM | AK4113_PEM |
+				AK4113_DAT | 0xf0)) ^
+		(rcs1 & (AK4113_DTSCD | AK4113_NPCM | AK4113_PEM |
+			 AK4113_DAT | 0xf0));
+	ak4113->rcs0 = rcs0 & ~(AK4113_QINT | AK4113_CINT | AK4113_STC);
+	ak4113->rcs1 = rcs1;
+	ak4113->rcs2 = rcs2;
+	spin_unlock_irqrestore(&ak4113->lock, _flags);
+
+	if (rcs0 & AK4113_PAR)
+		snd_ctl_notify(ak4113->card, SNDRV_CTL_EVENT_MASK_VALUE,
+				&ak4113->kctls[0]->id);
+	if (rcs0 & AK4113_V)
+		snd_ctl_notify(ak4113->card, SNDRV_CTL_EVENT_MASK_VALUE,
+				&ak4113->kctls[1]->id);
+	if (rcs2 & AK4113_CCRC)
+		snd_ctl_notify(ak4113->card, SNDRV_CTL_EVENT_MASK_VALUE,
+				&ak4113->kctls[2]->id);
+	if (rcs2 & AK4113_QCRC)
+		snd_ctl_notify(ak4113->card, SNDRV_CTL_EVENT_MASK_VALUE,
+				&ak4113->kctls[3]->id);
+
+	/* rate change */
+	if (c1 & 0xf0)
+		snd_ctl_notify(ak4113->card, SNDRV_CTL_EVENT_MASK_VALUE,
+				&ak4113->kctls[4]->id);
+
+	if ((c1 & AK4113_PEM) | (c0 & AK4113_CINT))
+		snd_ctl_notify(ak4113->card, SNDRV_CTL_EVENT_MASK_VALUE,
+				&ak4113->kctls[6]->id);
+	if (c0 & AK4113_QINT)
+		snd_ctl_notify(ak4113->card, SNDRV_CTL_EVENT_MASK_VALUE,
+				&ak4113->kctls[8]->id);
+
+	if (c0 & AK4113_AUDION)
+		snd_ctl_notify(ak4113->card, SNDRV_CTL_EVENT_MASK_VALUE,
+				&ak4113->kctls[9]->id);
+	if (c1 & AK4113_NPCM)
+		snd_ctl_notify(ak4113->card, SNDRV_CTL_EVENT_MASK_VALUE,
+				&ak4113->kctls[10]->id);
+	if (c1 & AK4113_DTSCD)
+		snd_ctl_notify(ak4113->card, SNDRV_CTL_EVENT_MASK_VALUE,
+				&ak4113->kctls[11]->id);
+
+	if (ak4113->change_callback && (c0 | c1) != 0)
+		ak4113->change_callback(ak4113, c0, c1);
+
+__rate:
+	/* compare rate */
+	res = external_rate(rcs1);
+	if (!(flags & AK4113_CHECK_NO_RATE) && runtime &&
+			(runtime->rate != res)) {
+		snd_pcm_stream_lock_irqsave(ak4113->substream, _flags);
+		if (snd_pcm_running(ak4113->substream)) {
+			/*printk(KERN_DEBUG "rate changed (%i <- %i)\n",
+			 * runtime->rate, res); */
+			snd_pcm_stop(ak4113->substream,
+					SNDRV_PCM_STATE_DRAINING);
+			wake_up(&runtime->sleep);
+			res = 1;
+		}
+		snd_pcm_stream_unlock_irqrestore(ak4113->substream, _flags);
+	}
+	return res;
+}
+EXPORT_SYMBOL_GPL(snd_ak4113_check_rate_and_errors);
+
+static void ak4113_stats(struct work_struct *work)
+{
+	struct ak4113 *chip = container_of(work, struct ak4113, work.work);
+
+	if (!chip->init)
+		snd_ak4113_check_rate_and_errors(chip, chip->check_flags);
+
+	schedule_delayed_work(&chip->work, HZ / 10);
+}
diff --git a/sound/i2c/other/ak4xxx-adda.c b/sound/i2c/other/ak4xxx-adda.c
index ee47aba..1adb8a3 100644
--- a/sound/i2c/other/ak4xxx-adda.c
+++ b/sound/i2c/other/ak4xxx-adda.c
@@ -19,7 +19,7 @@
  *   along with this program; if not, write to the Free Software
  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  *
- */      
+ */
 
 #include <asm/io.h>
 #include <linux/delay.h>
@@ -29,6 +29,7 @@
 #include <sound/control.h>
 #include <sound/tlv.h>
 #include <sound/ak4xxx-adda.h>
+#include <sound/info.h>
 
 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.de>");
 MODULE_DESCRIPTION("Routines for control of AK452x / AK43xx  AD/DA converters");
@@ -52,26 +53,21 @@ EXPORT_SYMBOL(snd_akm4xxx_write);
 static void ak4524_reset(struct snd_akm4xxx *ak, int state)
 {
 	unsigned int chip;
-	unsigned char reg, maxreg;
+	unsigned char reg;
 
-	if (ak->type == SND_AK4528)
-		maxreg = 0x06;
-	else
-		maxreg = 0x08;
 	for (chip = 0; chip < ak->num_dacs/2; chip++) {
 		snd_akm4xxx_write(ak, chip, 0x01, state ? 0x00 : 0x03);
 		if (state)
 			continue;
 		/* DAC volumes */
-		for (reg = 0x04; reg < maxreg; reg++)
+		for (reg = 0x04; reg < ak->total_regs; reg++)
 			snd_akm4xxx_write(ak, chip, reg,
 					  snd_akm4xxx_get(ak, chip, reg));
 	}
 }
 
 /* reset procedure for AK4355 and AK4358 */
-static void ak435X_reset(struct snd_akm4xxx *ak, int state,
-		unsigned char total_regs)
+static void ak435X_reset(struct snd_akm4xxx *ak, int state)
 {
 	unsigned char reg;
 
@@ -79,7 +75,7 @@ static void ak435X_reset(struct snd_akm4xxx *ak, int state,
 		snd_akm4xxx_write(ak, 0, 0x01, 0x02); /* reset and soft-mute */
 		return;
 	}
-	for (reg = 0x00; reg < total_regs; reg++)
+	for (reg = 0x00; reg < ak->total_regs; reg++)
 		if (reg != 0x01)
 			snd_akm4xxx_write(ak, 0, reg,
 					  snd_akm4xxx_get(ak, 0, reg));
@@ -91,12 +87,11 @@ static void ak4381_reset(struct snd_akm4xxx *ak, int state)
 {
 	unsigned int chip;
 	unsigned char reg;
-
 	for (chip = 0; chip < ak->num_dacs/2; chip++) {
 		snd_akm4xxx_write(ak, chip, 0x00, state ? 0x0c : 0x0f);
 		if (state)
 			continue;
-		for (reg = 0x01; reg < 0x05; reg++)
+		for (reg = 0x01; reg < ak->total_regs; reg++)
 			snd_akm4xxx_write(ak, chip, reg,
 					  snd_akm4xxx_get(ak, chip, reg));
 	}
@@ -113,16 +108,17 @@ void snd_akm4xxx_reset(struct snd_akm4xxx *ak, int state)
 	switch (ak->type) {
 	case SND_AK4524:
 	case SND_AK4528:
+	case SND_AK4620:
 		ak4524_reset(ak, state);
 		break;
 	case SND_AK4529:
 		/* FIXME: needed for ak4529? */
 		break;
 	case SND_AK4355:
-		ak435X_reset(ak, state, 0x0b);
+		ak435X_reset(ak, state);
 		break;
 	case SND_AK4358:
-		ak435X_reset(ak, state, 0x10);
+		ak435X_reset(ak, state);
 		break;
 	case SND_AK4381:
 		ak4381_reset(ak, state);
@@ -139,7 +135,7 @@ EXPORT_SYMBOL(snd_akm4xxx_reset);
  * Volume conversion table for non-linear volumes
  * from -63.5dB (mute) to 0dB step 0.5dB
  *
- * Used for AK4524 input/ouput attenuation, AK4528, and
+ * Used for AK4524/AK4620 input/ouput attenuation, AK4528, and
  * AK5365 input attenuation
  */
 static const unsigned char vol_cvt_datt[128] = {
@@ -259,8 +255,22 @@ void snd_akm4xxx_init(struct snd_akm4xxx *ak)
 		0x00, 0x0f, /* 0: power-up, un-reset */
 		0xff, 0xff
 	};
+	static const unsigned char inits_ak4620[] = {
+		0x00, 0x07, /* 0: normal */
+		0x01, 0x00, /* 0: reset */
+		0x01, 0x02, /* 1: RSTAD */
+		0x01, 0x03, /* 1: RSTDA */
+		0x01, 0x0f, /* 1: normal */
+		0x02, 0x60, /* 2: 24bit I2S */
+		0x03, 0x01, /* 3: deemphasis off */
+		0x04, 0x00, /* 4: LIN muted */
+		0x05, 0x00, /* 5: RIN muted */
+		0x06, 0x00, /* 6: LOUT muted */
+		0x07, 0x00, /* 7: ROUT muted */
+		0xff, 0xff
+	};
 
-	int chip, num_chips;
+	int chip;
 	const unsigned char *ptr, *inits;
 	unsigned char reg, data;
 
@@ -270,42 +280,64 @@ void snd_akm4xxx_init(struct snd_akm4xxx *ak)
 	switch (ak->type) {
 	case SND_AK4524:
 		inits = inits_ak4524;
-		num_chips = ak->num_dacs / 2;
+		ak->num_chips = ak->num_dacs / 2;
+		ak->name = "ak4524";
+		ak->total_regs = 0x08;
 		break;
 	case SND_AK4528:
 		inits = inits_ak4528;
-		num_chips = ak->num_dacs / 2;
+		ak->num_chips = ak->num_dacs / 2;
+		ak->name = "ak4528";
+		ak->total_regs = 0x06;
 		break;
 	case SND_AK4529:
 		inits = inits_ak4529;
-		num_chips = 1;
+		ak->num_chips = 1;
+		ak->name = "ak4529";
+		ak->total_regs = 0x0d;
 		break;
 	case SND_AK4355:
 		inits = inits_ak4355;
-		num_chips = 1;
+		ak->num_chips = 1;
+		ak->name = "ak4355";
+		ak->total_regs = 0x0b;
 		break;
 	case SND_AK4358:
 		inits = inits_ak4358;
-		num_chips = 1;
+		ak->num_chips = 1;
+		ak->name = "ak4358";
+		ak->total_regs = 0x10;
 		break;
 	case SND_AK4381:
 		inits = inits_ak4381;
-		num_chips = ak->num_dacs / 2;
+		ak->num_chips = ak->num_dacs / 2;
+		ak->name = "ak4381";
+		ak->total_regs = 0x05;
 		break;
 	case SND_AK5365:
 		/* FIXME: any init sequence? */
+		ak->num_chips = 1;
+		ak->name = "ak5365";
+		ak->total_regs = 0x08;
 		return;
+	case SND_AK4620:
+		inits = inits_ak4620;
+		ak->num_chips = ak->num_dacs / 2;
+		ak->name = "ak4620";
+		ak->total_regs = 0x08;
+		break;
 	default:
 		snd_BUG();
 		return;
 	}
 
-	for (chip = 0; chip < num_chips; chip++) {
+	for (chip = 0; chip < ak->num_chips; chip++) {
 		ptr = inits;
 		while (*ptr != 0xff) {
 			reg = *ptr++;
 			data = *ptr++;
 			snd_akm4xxx_write(ak, chip, reg, data);
+			udelay(10);
 		}
 	}
 }
@@ -688,6 +720,12 @@ static int build_dac_controls(struct snd_akm4xxx *ak)
 				AK_COMPOSE(idx/2, (idx%2) + 3, 0, 255);
 			knew.tlv.p = db_scale_linear;
 			break;
+		case SND_AK4620:
+			/* register 6 & 7 */
+			knew.private_value =
+				AK_COMPOSE(idx/2, (idx%2) + 6, 0, 255);
+			knew.tlv.p = db_scale_linear;
+			break;
 		default:
 			return -EINVAL;
 		}
@@ -704,10 +742,12 @@ static int build_dac_controls(struct snd_akm4xxx *ak)
 
 static int build_adc_controls(struct snd_akm4xxx *ak)
 {
-	int idx, err, mixer_ch, num_stereo;
+	int idx, err, mixer_ch, num_stereo, max_steps;
 	struct snd_kcontrol_new knew;
 
 	mixer_ch = 0;
+	if (ak->type == SND_AK4528)
+		return 0;	/* no controls */
 	for (idx = 0; idx < ak->num_adcs;) {
 		memset(&knew, 0, sizeof(knew));
 		if (! ak->adc_info || ! ak->adc_info[mixer_ch].name) {
@@ -733,13 +773,12 @@ static int build_adc_controls(struct snd_akm4xxx *ak)
 		}
 		/* register 4 & 5 */
 		if (ak->type == SND_AK5365)
-			knew.private_value =
-				AK_COMPOSE(idx/2, (idx%2) + 4, 0, 151) |
-				AK_VOL_CVT | AK_IPGA;
+			max_steps = 152;
 		else
-			knew.private_value =
-				AK_COMPOSE(idx/2, (idx%2) + 4, 0, 163) |
-				AK_VOL_CVT | AK_IPGA;
+			max_steps = 164;
+		knew.private_value =
+			AK_COMPOSE(idx/2, (idx%2) + 4, 0, max_steps) |
+			AK_VOL_CVT | AK_IPGA;
 		knew.tlv.p = db_scale_vol_datt;
 		err = snd_ctl_add(ak->card, snd_ctl_new1(&knew, ak));
 		if (err < 0)
@@ -808,6 +847,7 @@ static int build_deemphasis(struct snd_akm4xxx *ak, int num_emphs)
 		switch (ak->type) {
 		case SND_AK4524:
 		case SND_AK4528:
+		case SND_AK4620:
 			/* register 3 */
 			knew.private_value = AK_COMPOSE(idx, 3, 0, 0);
 			break;
@@ -834,6 +874,35 @@ static int build_deemphasis(struct snd_akm4xxx *ak, int num_emphs)
 	return 0;
 }
 
+#ifdef CONFIG_PROC_FS
+static void proc_regs_read(struct snd_info_entry *entry,
+		struct snd_info_buffer *buffer)
+{
+	struct snd_akm4xxx *ak = (struct snd_akm4xxx *)entry->private_data;
+	int reg, val, chip;
+	for (chip = 0; chip < ak->num_chips; chip++) {
+		for (reg = 0; reg < ak->total_regs; reg++) {
+			val =  snd_akm4xxx_get(ak, chip, reg);
+			snd_iprintf(buffer, "chip %d: 0x%02x = 0x%02x\n", chip,
+					reg, val);
+		}
+	}
+}
+
+static int proc_init(struct snd_akm4xxx *ak)
+{
+	struct snd_info_entry *entry;
+	int err;
+	err = snd_card_proc_new(ak->card, ak->name, &entry);
+	if (err < 0)
+		return err;
+	snd_info_set_text_ops(entry, ak, proc_regs_read);
+	return 0;
+}
+#else /* !CONFIG_PROC_FS */
+static int proc_init(struct snd_akm4xxx *ak) {}
+#endif
+
 int snd_akm4xxx_build_controls(struct snd_akm4xxx *ak)
 {
 	int err, num_emphs;
@@ -845,18 +914,21 @@ int snd_akm4xxx_build_controls(struct snd_akm4xxx *ak)
 	err = build_adc_controls(ak);
 	if (err < 0)
 		return err;
-
 	if (ak->type == SND_AK4355 || ak->type == SND_AK4358)
 		num_emphs = 1;
+	else if (ak->type == SND_AK4620)
+		num_emphs = 0;
 	else
 		num_emphs = ak->num_dacs / 2;
 	err = build_deemphasis(ak, num_emphs);
 	if (err < 0)
 		return err;
+	err = proc_init(ak);
+	if (err < 0)
+		return err;
 
 	return 0;
 }
-	
 EXPORT_SYMBOL(snd_akm4xxx_build_controls);
 
 static int __init alsa_akm4xxx_module_init(void)
diff --git a/sound/pci/ice1712/Makefile b/sound/pci/ice1712/Makefile
index 536eae2..f7ce33f 100644
--- a/sound/pci/ice1712/Makefile
+++ b/sound/pci/ice1712/Makefile
@@ -5,7 +5,7 @@
 
 snd-ice17xx-ak4xxx-objs := ak4xxx.o
 snd-ice1712-objs := ice1712.o delta.o hoontech.o ews.o
-snd-ice1724-objs := ice1724.o amp.o revo.o aureon.o vt1720_mobo.o pontis.o prodigy192.o prodigy_hifi.o juli.o phase.o wtm.o se.o maya44.o
+snd-ice1724-objs := ice1724.o amp.o revo.o aureon.o vt1720_mobo.o pontis.o prodigy192.o prodigy_hifi.o juli.o phase.o wtm.o se.o maya44.o quartet.o
 
 # Toplevel Module Dependency
 obj-$(CONFIG_SND_ICE1712) += snd-ice1712.o snd-ice17xx-ak4xxx.o
diff --git a/sound/pci/ice1712/ice1712.c b/sound/pci/ice1712/ice1712.c
index d74033a..c7cff6f 100644
--- a/sound/pci/ice1712/ice1712.c
+++ b/sound/pci/ice1712/ice1712.c
@@ -298,6 +298,16 @@ static void snd_ice1712_set_gpio_dir(struct snd_ice1712 *ice, unsigned int data)
 	inb(ICEREG(ice, DATA)); /* dummy read for pci-posting */
 }
 
+static unsigned int snd_ice1712_get_gpio_dir(struct snd_ice1712 *ice)
+{
+	return snd_ice1712_read(ice, ICE1712_IREG_GPIO_DIRECTION);
+}
+
+static unsigned int snd_ice1712_get_gpio_mask(struct snd_ice1712 *ice)
+{
+	return snd_ice1712_read(ice, ICE1712_IREG_GPIO_WRITE_MASK);
+}
+
 static void snd_ice1712_set_gpio_mask(struct snd_ice1712 *ice, unsigned int data)
 {
 	snd_ice1712_write(ice, ICE1712_IREG_GPIO_WRITE_MASK, data);
@@ -2557,7 +2567,9 @@ static int __devinit snd_ice1712_create(struct snd_card *card,
 	mutex_init(&ice->i2c_mutex);
 	mutex_init(&ice->open_mutex);
 	ice->gpio.set_mask = snd_ice1712_set_gpio_mask;
+	ice->gpio.get_mask = snd_ice1712_get_gpio_mask;
 	ice->gpio.set_dir = snd_ice1712_set_gpio_dir;
+	ice->gpio.get_dir = snd_ice1712_get_gpio_dir;
 	ice->gpio.set_data = snd_ice1712_set_gpio_data;
 	ice->gpio.get_data = snd_ice1712_get_gpio_data;
 
diff --git a/sound/pci/ice1712/ice1712.h b/sound/pci/ice1712/ice1712.h
index 9da2dae..4615bca 100644
--- a/sound/pci/ice1712/ice1712.h
+++ b/sound/pci/ice1712/ice1712.h
@@ -359,7 +359,9 @@ struct snd_ice1712 {
 		unsigned int saved[2];		/* for ewx_i2c */
 		/* operators */
 		void (*set_mask)(struct snd_ice1712 *ice, unsigned int data);
+		unsigned int (*get_mask)(struct snd_ice1712 *ice);
 		void (*set_dir)(struct snd_ice1712 *ice, unsigned int data);
+		unsigned int (*get_dir)(struct snd_ice1712 *ice);
 		void (*set_data)(struct snd_ice1712 *ice, unsigned int data);
 		unsigned int (*get_data)(struct snd_ice1712 *ice);
 		/* misc operators - move to another place? */
@@ -377,8 +379,11 @@ struct snd_ice1712 {
 	unsigned int (*get_rate)(struct snd_ice1712 *ice);
 	void (*set_rate)(struct snd_ice1712 *ice, unsigned int rate);
 	unsigned char (*set_mclk)(struct snd_ice1712 *ice, unsigned int rate);
-	void (*set_spdif_clock)(struct snd_ice1712 *ice);
-
+	int (*set_spdif_clock)(struct snd_ice1712 *ice, int type);
+	int (*get_spdif_master_type)(struct snd_ice1712 *ice);
+	char **ext_clock_names;
+	int ext_clock_count;
+	void (*pro_open)(struct snd_ice1712 *, struct snd_pcm_substream *);
 #ifdef CONFIG_PM
 	int (*pm_suspend)(struct snd_ice1712 *);
 	int (*pm_resume)(struct snd_ice1712 *);
@@ -399,6 +404,11 @@ static inline void snd_ice1712_gpio_set_dir(struct snd_ice1712 *ice, unsigned in
 	ice->gpio.set_dir(ice, bits);
 }
 
+static inline unsigned int snd_ice1712_gpio_get_dir(struct snd_ice1712 *ice)
+{
+	return ice->gpio.get_dir(ice);
+}
+
 static inline void snd_ice1712_gpio_set_mask(struct snd_ice1712 *ice, unsigned int bits)
 {
 	ice->gpio.set_mask(ice, bits);
diff --git a/sound/pci/ice1712/ice1724.c b/sound/pci/ice1712/ice1724.c
index 10fc92c..ae29073 100644
--- a/sound/pci/ice1712/ice1724.c
+++ b/sound/pci/ice1712/ice1724.c
@@ -53,6 +53,7 @@
 #include "phase.h"
 #include "wtm.h"
 #include "se.h"
+#include "quartet.h"
 
 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
 MODULE_DESCRIPTION("VIA ICEnsemble ICE1724/1720 (Envy24HT/PT)");
@@ -70,6 +71,7 @@ MODULE_SUPPORTED_DEVICE("{"
 	       PHASE_DEVICE_DESC
 	       WTM_DEVICE_DESC
 	       SE_DEVICE_DESC
+	       QTET_DEVICE_DESC
 		"{VIA,VT1720},"
 		"{VIA,VT1724},"
 		"{ICEnsemble,Generic ICE1724},"
@@ -104,6 +106,8 @@ static int PRO_RATE_LOCKED;
 static int PRO_RATE_RESET = 1;
 static unsigned int PRO_RATE_DEFAULT = 44100;
 
+static char *ext_clock_names[1] = { "IEC958 In" };
+
 /*
  *  Basic I/O
  */
@@ -118,9 +122,12 @@ static inline int stdclock_is_spdif_master(struct snd_ice1712 *ice)
 	return (inb(ICEMT1724(ice, RATE)) & VT1724_SPDIF_MASTER) ? 1 : 0;
 }
 
+/*
+ * locking rate makes sense only for internal clock mode
+ */
 static inline int is_pro_rate_locked(struct snd_ice1712 *ice)
 {
-	return ice->is_spdif_master(ice) || PRO_RATE_LOCKED;
+	return (!ice->is_spdif_master(ice)) && PRO_RATE_LOCKED;
 }
 
 /*
@@ -196,6 +203,12 @@ static void snd_vt1724_set_gpio_dir(struct snd_ice1712 *ice, unsigned int data)
 	inw(ICEREG1724(ice, GPIO_DIRECTION)); /* dummy read for pci-posting */
 }
 
+/* get gpio direction 0 = read, 1 = write */
+static unsigned int snd_vt1724_get_gpio_dir(struct snd_ice1712 *ice)
+{
+	return inl(ICEREG1724(ice, GPIO_DIRECTION));
+}
+
 /* set the gpio mask (0 = writable) */
 static void snd_vt1724_set_gpio_mask(struct snd_ice1712 *ice, unsigned int data)
 {
@@ -205,6 +218,17 @@ static void snd_vt1724_set_gpio_mask(struct snd_ice1712 *ice, unsigned int data)
 	inw(ICEREG1724(ice, GPIO_WRITE_MASK)); /* dummy read for pci-posting */
 }
 
+static unsigned int snd_vt1724_get_gpio_mask(struct snd_ice1712 *ice)
+{
+	unsigned int mask;
+	if (!ice->vt1720)
+		mask = (unsigned int)inb(ICEREG1724(ice, GPIO_WRITE_MASK_22));
+	else
+		mask = 0;
+	mask = (mask << 16) | inw(ICEREG1724(ice, GPIO_WRITE_MASK));
+	return mask;
+}
+
 static void snd_vt1724_set_gpio_data(struct snd_ice1712 *ice, unsigned int data)
 {
 	outw(data, ICEREG1724(ice, GPIO_DATA));
@@ -651,16 +675,22 @@ static int snd_vt1724_set_pro_rate(struct snd_ice1712 *ice, unsigned int rate,
 		return ((rate == ice->cur_rate) && !force) ? 0 : -EBUSY;
 	}
 	if (!force && is_pro_rate_locked(ice)) {
+		/* comparing required and current rate - makes sense for
+		 * internal clock only */
 		spin_unlock_irqrestore(&ice->reg_lock, flags);
 		return (rate == ice->cur_rate) ? 0 : -EBUSY;
 	}
 
-	old_rate = ice->get_rate(ice);
-	if (force || (old_rate != rate))
-		ice->set_rate(ice, rate);
-	else if (rate == ice->cur_rate) {
-		spin_unlock_irqrestore(&ice->reg_lock, flags);
-		return 0;
+	if (force || !ice->is_spdif_master(ice)) {
+		/* force means the rate was switched by ucontrol, otherwise
+		 * setting clock rate for internal clock mode */
+		old_rate = ice->get_rate(ice);
+		if (force || (old_rate != rate))
+			ice->set_rate(ice, rate);
+		else if (rate == ice->cur_rate) {
+			spin_unlock_irqrestore(&ice->reg_lock, flags);
+			return 0;
+		}
 	}
 
 	ice->cur_rate = rate;
@@ -1016,6 +1046,8 @@ static int snd_vt1724_playback_pro_open(struct snd_pcm_substream *substream)
 				   VT1724_BUFFER_ALIGN);
 	snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
 				   VT1724_BUFFER_ALIGN);
+	if (ice->pro_open)
+		ice->pro_open(ice, substream);
 	return 0;
 }
 
@@ -1034,6 +1066,8 @@ static int snd_vt1724_capture_pro_open(struct snd_pcm_substream *substream)
 				   VT1724_BUFFER_ALIGN);
 	snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
 				   VT1724_BUFFER_ALIGN);
+	if (ice->pro_open)
+		ice->pro_open(ice, substream);
 	return 0;
 }
 
@@ -1787,15 +1821,21 @@ static int snd_vt1724_pro_internal_clock_info(struct snd_kcontrol *kcontrol,
 					      struct snd_ctl_elem_info *uinfo)
 {
 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
-
+	int hw_rates_count = ice->hw_rates->count;
 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 	uinfo->count = 1;
-	uinfo->value.enumerated.items = ice->hw_rates->count + 1;
+
+	uinfo->value.enumerated.items = hw_rates_count + ice->ext_clock_count;
+	/* upper limit - keep at top */
 	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
 		uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
-	if (uinfo->value.enumerated.item == uinfo->value.enumerated.items - 1)
-		strcpy(uinfo->value.enumerated.name, "IEC958 Input");
+	if (uinfo->value.enumerated.item >= hw_rates_count)
+		/* ext_clock items */
+		strcpy(uinfo->value.enumerated.name,
+				ice->ext_clock_names[
+				uinfo->value.enumerated.item - hw_rates_count]);
 	else
+		/* int clock items */
 		sprintf(uinfo->value.enumerated.name, "%d",
 			ice->hw_rates->list[uinfo->value.enumerated.item]);
 	return 0;
@@ -1809,7 +1849,8 @@ static int snd_vt1724_pro_internal_clock_get(struct snd_kcontrol *kcontrol,
 
 	spin_lock_irq(&ice->reg_lock);
 	if (ice->is_spdif_master(ice)) {
-		ucontrol->value.enumerated.item[0] = ice->hw_rates->count;
+		ucontrol->value.enumerated.item[0] = ice->hw_rates->count +
+			ice->get_spdif_master_type(ice);
 	} else {
 		rate = ice->get_rate(ice);
 		ucontrol->value.enumerated.item[0] = 0;
@@ -1824,8 +1865,14 @@ static int snd_vt1724_pro_internal_clock_get(struct snd_kcontrol *kcontrol,
 	return 0;
 }
 
+static int stdclock_get_spdif_master_type(struct snd_ice1712 *ice)
+{
+	/* standard external clock - only single type - SPDIF IN */
+	return 0;
+}
+
 /* setting clock to external - SPDIF */
-static void stdclock_set_spdif_clock(struct snd_ice1712 *ice)
+static int stdclock_set_spdif_clock(struct snd_ice1712 *ice, int type)
 {
 	unsigned char oval;
 	unsigned char i2s_oval;
@@ -1834,27 +1881,30 @@ static void stdclock_set_spdif_clock(struct snd_ice1712 *ice)
 	/* setting 256fs */
 	i2s_oval = inb(ICEMT1724(ice, I2S_FORMAT));
 	outb(i2s_oval & ~VT1724_MT_I2S_MCLK_128X, ICEMT1724(ice, I2S_FORMAT));
+	return 0;
 }
 
+
 static int snd_vt1724_pro_internal_clock_put(struct snd_kcontrol *kcontrol,
 					     struct snd_ctl_elem_value *ucontrol)
 {
 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 	unsigned int old_rate, new_rate;
 	unsigned int item = ucontrol->value.enumerated.item[0];
-	unsigned int spdif = ice->hw_rates->count;
+	unsigned int first_ext_clock = ice->hw_rates->count;
 
-	if (item > spdif)
+	if (item >  first_ext_clock + ice->ext_clock_count - 1)
 		return -EINVAL;
 
+	/* if rate = 0 => external clock */
 	spin_lock_irq(&ice->reg_lock);
 	if (ice->is_spdif_master(ice))
 		old_rate = 0;
 	else
 		old_rate = ice->get_rate(ice);
-	if (item == spdif) {
-		/* switching to external clock via SPDIF */
-		ice->set_spdif_clock(ice);
+	if (item >= first_ext_clock) {
+		/* switching to external clock */
+		ice->set_spdif_clock(ice, item - first_ext_clock);
 		new_rate = 0;
 	} else {
 		/* internal on-card clock */
@@ -1866,7 +1916,7 @@ static int snd_vt1724_pro_internal_clock_put(struct snd_kcontrol *kcontrol,
 	}
 	spin_unlock_irq(&ice->reg_lock);
 
-	/* the first reset to the SPDIF master mode? */
+	/* the first switch to the ext. clock mode? */
 	if (old_rate != new_rate && !new_rate) {
 		/* notify akm chips as well */
 		unsigned int i;
@@ -2136,6 +2186,7 @@ static struct snd_ice1712_card_info *card_tables[] __devinitdata = {
 	snd_vt1724_phase_cards,
 	snd_vt1724_wtm_cards,
 	snd_vt1724_se_cards,
+	snd_vt1724_qtet_cards,
 	NULL,
 };
 
@@ -2434,7 +2485,9 @@ static int __devinit snd_vt1724_create(struct snd_card *card,
 	mutex_init(&ice->open_mutex);
 	mutex_init(&ice->i2c_mutex);
 	ice->gpio.set_mask = snd_vt1724_set_gpio_mask;
+	ice->gpio.get_mask = snd_vt1724_get_gpio_mask;
 	ice->gpio.set_dir = snd_vt1724_set_gpio_dir;
+	ice->gpio.get_dir = snd_vt1724_get_gpio_dir;
 	ice->gpio.set_data = snd_vt1724_set_gpio_data;
 	ice->gpio.get_data = snd_vt1724_get_gpio_data;
 	ice->card = card;
@@ -2522,6 +2575,9 @@ static int __devinit snd_vt1724_probe(struct pci_dev *pci,
 		return err;
 	}
 
+	/* field init before calling chip_init */
+	ice->ext_clock_count = 0;
+
 	for (tbl = card_tables; *tbl; tbl++) {
 		for (c = *tbl; c->subvendor; c++) {
 			if (c->subvendor == ice->eeprom.subvendor) {
@@ -2560,6 +2616,13 @@ __found:
 		ice->set_mclk = stdclock_set_mclk;
 	if (!ice->set_spdif_clock)
 		ice->set_spdif_clock = stdclock_set_spdif_clock;
+	if (!ice->get_spdif_master_type)
+		ice->get_spdif_master_type = stdclock_get_spdif_master_type;
+	if (!ice->ext_clock_names)
+		ice->ext_clock_names = ext_clock_names;
+	if (!ice->ext_clock_count)
+		ice->ext_clock_count = ARRAY_SIZE(ext_clock_names);
+
 	if (!ice->hw_rates)
 		set_std_hw_rates(ice);
 
@@ -2719,7 +2782,7 @@ static int snd_vt1724_resume(struct pci_dev *pci)
 
 	if (ice->pm_saved_is_spdif_master) {
 		/* switching to external clock via SPDIF */
-		ice->set_spdif_clock(ice);
+		ice->set_spdif_clock(ice, 0);
 	} else {
 		/* internal on-card clock */
 		snd_vt1724_set_pro_rate(ice, ice->pro_rate_default, 1);
diff --git a/sound/pci/ice1712/juli.c b/sound/pci/ice1712/juli.c
index fd948bf..4bed963 100644
--- a/sound/pci/ice1712/juli.c
+++ b/sound/pci/ice1712/juli.c
@@ -412,25 +412,6 @@ static struct snd_kcontrol_new juli_mute_controls[] __devinitdata = {
 	},
 };
 
-
-static void ak4358_proc_regs_read(struct snd_info_entry *entry,
-		struct snd_info_buffer *buffer)
-{
-	struct snd_ice1712 *ice = (struct snd_ice1712 *)entry->private_data;
-	int reg, val;
-	for (reg = 0; reg <= 0xf; reg++) {
-		val =  snd_akm4xxx_get(ice->akm, 0, reg);
-		snd_iprintf(buffer, "0x%02x = 0x%02x\n", reg, val);
-	}
-}
-
-static void ak4358_proc_init(struct snd_ice1712 *ice)
-{
-	struct snd_info_entry *entry;
-	if (!snd_card_proc_new(ice->card, "ak4358_codec", &entry))
-		snd_info_set_text_ops(entry, ice, ak4358_proc_regs_read);
-}
-
 static char *slave_vols[] __devinitdata = {
 	PCM_VOLUME,
 	MONITOR_AN_IN_VOLUME,
@@ -496,8 +477,6 @@ static int __devinit juli_add_controls(struct snd_ice1712 *ice)
 	/* only capture SPDIF over AK4114 */
 	err = snd_ak4114_build(spec->ak4114, NULL,
 			ice->pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream);
-
-	ak4358_proc_init(ice);
 	if (err < 0)
 		return err;
 	return 0;
@@ -550,13 +529,14 @@ static inline unsigned char juli_set_mclk(struct snd_ice1712 *ice,
 }
 
 /* setting clock to external - SPDIF */
-static void juli_set_spdif_clock(struct snd_ice1712 *ice)
+static int juli_set_spdif_clock(struct snd_ice1712 *ice, int type)
 {
 	unsigned int old;
 	old = ice->gpio.get_data(ice);
 	/* external clock (= 0), multiply 1x, 48kHz */
 	ice->gpio.set_data(ice, (old & ~GPIO_RATE_MASK) | GPIO_MULTI_1X |
 			GPIO_FREQ_48KHZ);
+	return 0;
 }
 
 /* Called when ak4114 detects change in the input SPDIF stream */
diff --git a/sound/pci/ice1712/quartet.c b/sound/pci/ice1712/quartet.c
new file mode 100644
index 0000000..1948632
--- /dev/null
+++ b/sound/pci/ice1712/quartet.c
@@ -0,0 +1,1130 @@
+/*
+ *   ALSA driver for ICEnsemble VT1724 (Envy24HT)
+ *
+ *   Lowlevel functions for Infrasonic Quartet
+ *
+ *	Copyright (c) 2009 Pavel Hofman <pavel.hofman@ivitera.com>
+ *
+ *
+ *   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 <asm/io.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <sound/core.h>
+#include <sound/tlv.h>
+#include <sound/info.h>
+
+#include "ice1712.h"
+#include "envy24ht.h"
+#include <sound/ak4113.h>
+#include "quartet.h"
+
+struct qtet_spec {
+	struct ak4113 *ak4113;
+	unsigned int scr;	/* system control register */
+	unsigned int mcr;	/* monitoring control register */
+	unsigned int cpld;	/* cpld register */
+};
+
+struct qtet_kcontrol_private {
+	unsigned int bit;
+	void (*set_register)(struct snd_ice1712 *ice, unsigned int val);
+	unsigned int (*get_register)(struct snd_ice1712 *ice);
+	unsigned char *texts[2];
+};
+
+enum {
+	IN12_SEL = 0,
+	IN34_SEL,
+	AIN34_SEL,
+	COAX_OUT,
+	IN12_MON12,
+	IN12_MON34,
+	IN34_MON12,
+	IN34_MON34,
+	OUT12_MON34,
+	OUT34_MON12,
+};
+
+static char *ext_clock_names[3] = {"IEC958 In", "Word Clock 1xFS",
+	"Word Clock 256xFS"};
+
+/* chip address on I2C bus */
+#define AK4113_ADDR		0x26	/* S/PDIF receiver */
+
+/* chip address on SPI bus */
+#define AK4620_ADDR		0x02	/* ADC/DAC */
+
+
+/*
+ * GPIO pins
+ */
+
+/* GPIO0 - O - DATA0, def. 0 */
+#define GPIO_D0			(1<<0)
+/* GPIO1 - I/O - DATA1, Jack Detect Input0 (0:present, 1:missing), def. 1 */
+#define GPIO_D1_JACKDTC0	(1<<1)
+/* GPIO2 - I/O - DATA2, Jack Detect Input1 (0:present, 1:missing), def. 1 */
+#define GPIO_D2_JACKDTC1	(1<<2)
+/* GPIO3 - I/O - DATA3, def. 1 */
+#define GPIO_D3			(1<<3)
+/* GPIO4 - I/O - DATA4, SPI CDTO, def. 1 */
+#define GPIO_D4_SPI_CDTO	(1<<4)
+/* GPIO5 - I/O - DATA5, SPI CCLK, def. 1 */
+#define GPIO_D5_SPI_CCLK	(1<<5)
+/* GPIO6 - I/O - DATA6, Cable Detect Input (0:detected, 1:not detected */
+#define GPIO_D6_CD		(1<<6)
+/* GPIO7 - I/O - DATA7, Device Detect Input (0:detected, 1:not detected */
+#define GPIO_D7_DD		(1<<7)
+/* GPIO8 - O - CPLD Chip Select, def. 1 */
+#define GPIO_CPLD_CSN		(1<<8)
+/* GPIO9 - O - CPLD register read/write (0:write, 1:read), def. 0 */
+#define GPIO_CPLD_RW		(1<<9)
+/* GPIO10 - O - SPI Chip Select for CODEC#0, def. 1 */
+#define GPIO_SPI_CSN0		(1<<10)
+/* GPIO11 - O - SPI Chip Select for CODEC#1, def. 1 */
+#define GPIO_SPI_CSN1		(1<<11)
+/* GPIO12 - O - Ex. Register Output Enable (0:enable, 1:disable), def. 1,
+ * init 0 */
+#define GPIO_EX_GPIOE		(1<<12)
+/* GPIO13 - O - Ex. Register0 Chip Select for System Control Register,
+ * def. 1 */
+#define GPIO_SCR		(1<<13)
+/* GPIO14 - O - Ex. Register1 Chip Select for Monitor Control Register,
+ * def. 1 */
+#define GPIO_MCR		(1<<14)
+
+#define GPIO_SPI_ALL		(GPIO_D4_SPI_CDTO | GPIO_D5_SPI_CCLK |\
+		GPIO_SPI_CSN0 | GPIO_SPI_CSN1)
+
+#define GPIO_DATA_MASK		(GPIO_D0 | GPIO_D1_JACKDTC0 | \
+		GPIO_D2_JACKDTC1 | GPIO_D3 | \
+		GPIO_D4_SPI_CDTO | GPIO_D5_SPI_CCLK | \
+		GPIO_D6_CD | GPIO_D7_DD)
+
+/* System Control Register GPIO_SCR data bits */
+/* Mic/Line select relay (0:line, 1:mic) */
+#define SCR_RELAY		GPIO_D0
+/* Phantom power drive control (0:5V, 1:48V) */
+#define SCR_PHP_V		GPIO_D1_JACKDTC0
+/* H/W mute control (0:Normal, 1:Mute) */
+#define SCR_MUTE		GPIO_D2_JACKDTC1
+/* Phantom power control (0:Phantom on, 1:off) */
+#define SCR_PHP			GPIO_D3
+/* Analog input 1/2 Source Select */
+#define SCR_AIN12_SEL0		GPIO_D4_SPI_CDTO
+#define SCR_AIN12_SEL1		GPIO_D5_SPI_CCLK
+/* Analog input 3/4 Source Select (0:line, 1:hi-z) */
+#define SCR_AIN34_SEL		GPIO_D6_CD
+/* Codec Power Down (0:power down, 1:normal) */
+#define SCR_CODEC_PDN		GPIO_D7_DD
+
+#define SCR_AIN12_LINE		(0)
+#define SCR_AIN12_MIC		(SCR_AIN12_SEL0)
+#define SCR_AIN12_LOWCUT	(SCR_AIN12_SEL1 | SCR_AIN12_SEL0)
+
+/* Monitor Control Register GPIO_MCR data bits */
+/* Input 1/2 to Monitor 1/2 (0:off, 1:on) */
+#define MCR_IN12_MON12		GPIO_D0
+/* Input 1/2 to Monitor 3/4 (0:off, 1:on) */
+#define MCR_IN12_MON34		GPIO_D1_JACKDTC0
+/* Input 3/4 to Monitor 1/2 (0:off, 1:on) */
+#define MCR_IN34_MON12		GPIO_D2_JACKDTC1
+/* Input 3/4 to Monitor 3/4 (0:off, 1:on) */
+#define MCR_IN34_MON34		GPIO_D3
+/* Output to Monitor 1/2 (0:off, 1:on) */
+#define MCR_OUT34_MON12		GPIO_D4_SPI_CDTO
+/* Output to Monitor 3/4 (0:off, 1:on) */
+#define MCR_OUT12_MON34		GPIO_D5_SPI_CCLK
+
+/* CPLD Register DATA bits */
+/* Clock Rate Select */
+#define CPLD_CKS0		GPIO_D0
+#define CPLD_CKS1		GPIO_D1_JACKDTC0
+#define CPLD_CKS2		GPIO_D2_JACKDTC1
+/* Sync Source Select (0:Internal, 1:External) */
+#define CPLD_SYNC_SEL		GPIO_D3
+/* Word Clock FS Select (0:FS, 1:256FS) */
+#define CPLD_WORD_SEL		GPIO_D4_SPI_CDTO
+/* Coaxial Output Source (IS-Link) (0:SPDIF, 1:I2S) */
+#define CPLD_COAX_OUT		GPIO_D5_SPI_CCLK
+/* Input 1/2 Source Select (0:Analog12, 1:An34) */
+#define CPLD_IN12_SEL		GPIO_D6_CD
+/* Input 3/4 Source Select (0:Analog34, 1:Digital In) */
+#define CPLD_IN34_SEL		GPIO_D7_DD
+
+/* internal clock (CPLD_SYNC_SEL = 0) options */
+#define CPLD_CKS_44100HZ	(0)
+#define CPLD_CKS_48000HZ	(CPLD_CKS0)
+#define CPLD_CKS_88200HZ	(CPLD_CKS1)
+#define CPLD_CKS_96000HZ	(CPLD_CKS1 | CPLD_CKS0)
+#define CPLD_CKS_176400HZ	(CPLD_CKS2)
+#define CPLD_CKS_192000HZ	(CPLD_CKS2 | CPLD_CKS0)
+
+#define CPLD_CKS_MASK		(CPLD_CKS0 | CPLD_CKS1 | CPLD_CKS2)
+
+/* external clock (CPLD_SYNC_SEL = 1) options */
+/* external clock - SPDIF */
+#define CPLD_EXT_SPDIF	(0 | CPLD_SYNC_SEL)
+/* external clock - WordClock 1xfs */
+#define CPLD_EXT_WORDCLOCK_1FS	(CPLD_CKS1 | CPLD_SYNC_SEL)
+/* external clock - WordClock 256xfs */
+#define CPLD_EXT_WORDCLOCK_256FS	(CPLD_CKS1 | CPLD_WORD_SEL |\
+		CPLD_SYNC_SEL)
+
+#define EXT_SPDIF_TYPE			0
+#define EXT_WORDCLOCK_1FS_TYPE		1
+#define EXT_WORDCLOCK_256FS_TYPE	2
+
+#define AK4620_DFS0		(1<<0)
+#define AK4620_DFS1		(1<<1)
+#define AK4620_CKS0		(1<<2)
+#define AK4620_CKS1		(1<<3)
+/* Clock and Format Control register */
+#define AK4620_DFS_REG		0x02
+
+/* Deem and Volume Control register */
+#define AK4620_DEEMVOL_REG	0x03
+#define AK4620_SMUTE		(1<<7)
+
+/*
+ * Conversion from int value to its binary form. Used for debugging.
+ * The output buffer must be allocated prior to calling the function.
+ */
+static char *get_binary(char *buffer, int value)
+{
+	int i, j, pos;
+	pos = 0;
+	for (i = 0; i < 4; ++i) {
+		for (j = 0; j < 8; ++j) {
+			if (value & (1 << (31-(i*8 + j))))
+				buffer[pos] = '1';
+			else
+				buffer[pos] = '0';
+			pos++;
+		}
+		if (i < 3) {
+			buffer[pos] = ' ';
+			pos++;
+		}
+	}
+	buffer[pos] = '\0';
+	return buffer;
+}
+
+/*
+ * Initial setup of the conversion array GPIO <-> rate
+ */
+static unsigned int qtet_rates[] = {
+	44100, 48000, 88200,
+	96000, 176400, 192000,
+};
+
+static unsigned int cks_vals[] = {
+	CPLD_CKS_44100HZ, CPLD_CKS_48000HZ, CPLD_CKS_88200HZ,
+	CPLD_CKS_96000HZ, CPLD_CKS_176400HZ, CPLD_CKS_192000HZ,
+};
+
+static struct snd_pcm_hw_constraint_list qtet_rates_info = {
+	.count = ARRAY_SIZE(qtet_rates),
+	.list = qtet_rates,
+	.mask = 0,
+};
+
+static void qtet_ak4113_write(void *private_data, unsigned char reg,
+		unsigned char val)
+{
+	snd_vt1724_write_i2c((struct snd_ice1712 *)private_data, AK4113_ADDR,
+			reg, val);
+}
+
+static unsigned char qtet_ak4113_read(void *private_data, unsigned char reg)
+{
+	return snd_vt1724_read_i2c((struct snd_ice1712 *)private_data,
+			AK4113_ADDR, reg);
+}
+
+
+/*
+ * AK4620 section
+ */
+
+/*
+ * Write data to addr register of ak4620
+ */
+static void qtet_akm_write(struct snd_akm4xxx *ak, int chip,
+		unsigned char addr, unsigned char data)
+{
+	unsigned int tmp, orig_dir;
+	int idx;
+	unsigned int addrdata;
+	struct snd_ice1712 *ice = ak->private_data[0];
+
+	if (snd_BUG_ON(chip < 0 || chip >= 4))
+		return;
+	/*printk(KERN_DEBUG "Writing to AK4620: chip=%d, addr=0x%x,
+	  data=0x%x\n", chip, addr, data);*/
+	orig_dir = ice->gpio.get_dir(ice);
+	ice->gpio.set_dir(ice, orig_dir | GPIO_SPI_ALL);
+	/* set mask - only SPI bits */
+	ice->gpio.set_mask(ice, ~GPIO_SPI_ALL);
+
+	tmp = ice->gpio.get_data(ice);
+	/* high all */
+	tmp |= GPIO_SPI_ALL;
+	ice->gpio.set_data(ice, tmp);
+	udelay(100);
+	/* drop chip select */
+	if (chip)
+		/* CODEC 1 */
+		tmp &= ~GPIO_SPI_CSN1;
+	else
+		tmp &= ~GPIO_SPI_CSN0;
+	ice->gpio.set_data(ice, tmp);
+	udelay(100);
+
+	/* build I2C address + data byte */
+	addrdata = (AK4620_ADDR << 6) | 0x20 | (addr & 0x1f);
+	addrdata = (addrdata << 8) | data;
+	for (idx = 15; idx >= 0; idx--) {
+		/* drop clock */
+		tmp &= ~GPIO_D5_SPI_CCLK;
+		ice->gpio.set_data(ice, tmp);
+		udelay(100);
+		/* set data */
+		if (addrdata & (1 << idx))
+			tmp |= GPIO_D4_SPI_CDTO;
+		else
+			tmp &= ~GPIO_D4_SPI_CDTO;
+		ice->gpio.set_data(ice, tmp);
+		udelay(100);
+		/* raise clock */
+		tmp |= GPIO_D5_SPI_CCLK;
+		ice->gpio.set_data(ice, tmp);
+		udelay(100);
+	}
+	/* all back to 1 */
+	tmp |= GPIO_SPI_ALL;
+	ice->gpio.set_data(ice, tmp);
+	udelay(100);
+
+	/* return all gpios to non-writable */
+	ice->gpio.set_mask(ice, 0xffffff);
+	/* restore GPIOs direction */
+	ice->gpio.set_dir(ice, orig_dir);
+}
+
+static void qtet_akm_set_regs(struct snd_akm4xxx *ak, unsigned char addr,
+		unsigned char mask, unsigned char value)
+{
+	unsigned char tmp;
+	int chip;
+	for (chip = 0; chip < ak->num_chips; chip++) {
+		tmp = snd_akm4xxx_get(ak, chip, addr);
+		/* clear the bits */
+		tmp &= ~mask;
+		/* set the new bits */
+		tmp |= value;
+		snd_akm4xxx_write(ak, chip, addr, tmp);
+	}
+}
+
+/*
+ * change the rate of AK4620
+ */
+static void qtet_akm_set_rate_val(struct snd_akm4xxx *ak, unsigned int rate)
+{
+	unsigned char ak4620_dfs;
+
+	if (rate == 0)  /* no hint - S/PDIF input is master or the new spdif
+			   input rate undetected, simply return */
+		return;
+
+	/* adjust DFS on codecs - see datasheet */
+	if (rate > 108000)
+		ak4620_dfs = AK4620_DFS1 | AK4620_CKS1;
+	else if (rate > 54000)
+		ak4620_dfs = AK4620_DFS0 | AK4620_CKS0;
+	else
+		ak4620_dfs = 0;
+
+	/* set new value */
+	qtet_akm_set_regs(ak, AK4620_DFS_REG, AK4620_DFS0 | AK4620_DFS1 |
+			AK4620_CKS0 | AK4620_CKS1, ak4620_dfs);
+}
+
+#define AK_CONTROL(xname, xch)	{ .name = xname, .num_channels = xch }
+
+#define PCM_12_PLAYBACK_VOLUME	"PCM 1/2 Playback Volume"
+#define PCM_34_PLAYBACK_VOLUME	"PCM 3/4 Playback Volume"
+#define PCM_12_CAPTURE_VOLUME	"PCM 1/2 Capture Volume"
+#define PCM_34_CAPTURE_VOLUME	"PCM 3/4 Capture Volume"
+
+static const struct snd_akm4xxx_dac_channel qtet_dac[] = {
+	AK_CONTROL(PCM_12_PLAYBACK_VOLUME, 2),
+	AK_CONTROL(PCM_34_PLAYBACK_VOLUME, 2),
+};
+
+static const struct snd_akm4xxx_adc_channel qtet_adc[] = {
+	AK_CONTROL(PCM_12_CAPTURE_VOLUME, 2),
+	AK_CONTROL(PCM_34_CAPTURE_VOLUME, 2),
+};
+
+static struct snd_akm4xxx akm_qtet_dac __devinitdata = {
+	.type = SND_AK4620,
+	.num_dacs = 4,	/* DAC1 - Output 12
+	*/
+	.num_adcs = 4,	/* ADC1 - Input 12
+	*/
+	.ops = {
+		.write = qtet_akm_write,
+		.set_rate_val = qtet_akm_set_rate_val,
+	},
+	.dac_info = qtet_dac,
+	.adc_info = qtet_adc,
+};
+
+/* Communication routines with the CPLD */
+
+
+/* Writes data to external register reg, both reg and data are
+ * GPIO representations */
+static void reg_write(struct snd_ice1712 *ice, unsigned int reg,
+		unsigned int data)
+{
+	unsigned int tmp;
+
+	mutex_lock(&ice->gpio_mutex);
+	/* set direction of used GPIOs*/
+	/* all outputs */
+	tmp = 0x00ffff;
+	ice->gpio.set_dir(ice, tmp);
+	/* mask - writable bits */
+	ice->gpio.set_mask(ice, ~(tmp));
+	/* write the data */
+	tmp = ice->gpio.get_data(ice);
+	tmp &= ~GPIO_DATA_MASK;
+	tmp |= data;
+	ice->gpio.set_data(ice, tmp);
+	udelay(100);
+	/* drop output enable */
+	tmp &=  ~GPIO_EX_GPIOE;
+	ice->gpio.set_data(ice, tmp);
+	udelay(100);
+	/* drop the register gpio */
+	tmp &= ~reg;
+	ice->gpio.set_data(ice, tmp);
+	udelay(100);
+	/* raise the register GPIO */
+	tmp |= reg;
+	ice->gpio.set_data(ice, tmp);
+	udelay(100);
+
+	/* raise all data gpios */
+	tmp |= GPIO_DATA_MASK;
+	ice->gpio.set_data(ice, tmp);
+	/* mask - immutable bits */
+	ice->gpio.set_mask(ice, 0xffffff);
+	/* outputs only 8-15 */
+	ice->gpio.set_dir(ice, 0x00ff00);
+	mutex_unlock(&ice->gpio_mutex);
+}
+
+static unsigned int get_scr(struct snd_ice1712 *ice)
+{
+	struct qtet_spec *spec = ice->spec;
+	return spec->scr;
+}
+
+static unsigned int get_mcr(struct snd_ice1712 *ice)
+{
+	struct qtet_spec *spec = ice->spec;
+	return spec->mcr;
+}
+
+static unsigned int get_cpld(struct snd_ice1712 *ice)
+{
+	struct qtet_spec *spec = ice->spec;
+	return spec->cpld;
+}
+
+static void set_scr(struct snd_ice1712 *ice, unsigned int val)
+{
+	struct qtet_spec *spec = ice->spec;
+	reg_write(ice, GPIO_SCR, val);
+	spec->scr = val;
+}
+
+static void set_mcr(struct snd_ice1712 *ice, unsigned int val)
+{
+	struct qtet_spec *spec = ice->spec;
+	reg_write(ice, GPIO_MCR, val);
+	spec->mcr = val;
+}
+
+static void set_cpld(struct snd_ice1712 *ice, unsigned int val)
+{
+	struct qtet_spec *spec = ice->spec;
+	reg_write(ice, GPIO_CPLD_CSN, val);
+	spec->cpld = val;
+}
+#ifdef CONFIG_PROC_FS
+static void proc_regs_read(struct snd_info_entry *entry,
+		struct snd_info_buffer *buffer)
+{
+	struct snd_ice1712 *ice = entry->private_data;
+	char bin_buffer[36];
+
+	snd_iprintf(buffer, "SCR:	%s\n", get_binary(bin_buffer,
+				get_scr(ice)));
+	snd_iprintf(buffer, "MCR:	%s\n", get_binary(bin_buffer,
+				get_mcr(ice)));
+	snd_iprintf(buffer, "CPLD:	%s\n", get_binary(bin_buffer,
+				get_cpld(ice)));
+}
+
+static void proc_init(struct snd_ice1712 *ice)
+{
+	struct snd_info_entry *entry;
+	if (!snd_card_proc_new(ice->card, "quartet", &entry))
+		snd_info_set_text_ops(entry, ice, proc_regs_read);
+}
+#else /* !CONFIG_PROC_FS */
+static void proc_init(struct snd_ice1712 *ice) {}
+#endif
+
+static int qtet_mute_get(struct snd_kcontrol *kcontrol,
+		struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+	unsigned int val;
+	val = get_scr(ice) & SCR_MUTE;
+	ucontrol->value.integer.value[0] = (val) ? 0 : 1;
+	return 0;
+}
+
+static int qtet_mute_put(struct snd_kcontrol *kcontrol,
+		struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+	unsigned int old, new, smute;
+	old = get_scr(ice) & SCR_MUTE;
+	if (ucontrol->value.integer.value[0]) {
+		/* unmute */
+		new = 0;
+		/* un-smuting DAC */
+		smute = 0;
+	} else {
+		/* mute */
+		new = SCR_MUTE;
+		/* smuting DAC */
+		smute = AK4620_SMUTE;
+	}
+	if (old != new) {
+		struct snd_akm4xxx *ak = ice->akm;
+		set_scr(ice, (get_scr(ice) & ~SCR_MUTE) | new);
+		/* set smute */
+		qtet_akm_set_regs(ak, AK4620_DEEMVOL_REG, AK4620_SMUTE, smute);
+		return 1;
+	}
+	/* no change */
+	return 0;
+}
+
+static int qtet_ain12_enum_info(struct snd_kcontrol *kcontrol,
+		struct snd_ctl_elem_info *uinfo)
+{
+	static char *texts[3] = {"Line In 1/2", "Mic", "Mic + Low-cut"};
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
+	uinfo->count = 1;
+	uinfo->value.enumerated.items = ARRAY_SIZE(texts);
+
+	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
+		uinfo->value.enumerated.item =
+			uinfo->value.enumerated.items - 1;
+	strcpy(uinfo->value.enumerated.name,
+			texts[uinfo->value.enumerated.item]);
+
+	return 0;
+}
+
+static int qtet_ain12_sw_get(struct snd_kcontrol *kcontrol,
+		struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+	unsigned int val, result;
+	val = get_scr(ice) & (SCR_AIN12_SEL1 | SCR_AIN12_SEL0);
+	switch (val) {
+	case SCR_AIN12_LINE:
+		result = 0;
+		break;
+	case SCR_AIN12_MIC:
+		result = 1;
+		break;
+	case SCR_AIN12_LOWCUT:
+		result = 2;
+		break;
+	default:
+		/* BUG - no other combinations allowed */
+		snd_BUG();
+		result = 0;
+	}
+	ucontrol->value.integer.value[0] = result;
+	return 0;
+}
+
+static int qtet_ain12_sw_put(struct snd_kcontrol *kcontrol,
+		struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+	unsigned int old, new, tmp, masked_old;
+	old = new = get_scr(ice);
+	masked_old = old & (SCR_AIN12_SEL1 | SCR_AIN12_SEL0);
+	tmp = ucontrol->value.integer.value[0];
+	if (tmp == 2)
+		tmp = 3;	/* binary 10 is not supported */
+	tmp <<= 4;	/* shifting to SCR_AIN12_SEL0 */
+	if (tmp != masked_old) {
+		/* change requested */
+		switch (tmp) {
+		case SCR_AIN12_LINE:
+			new = old & ~(SCR_AIN12_SEL1 | SCR_AIN12_SEL0);
+			set_scr(ice, new);
+			/* turn off relay */
+			new &= ~SCR_RELAY;
+			set_scr(ice, new);
+			break;
+		case SCR_AIN12_MIC:
+			/* turn on relay */
+			new = old | SCR_RELAY;
+			set_scr(ice, new);
+			new = (new & ~SCR_AIN12_SEL1) | SCR_AIN12_SEL0;
+			set_scr(ice, new);
+			break;
+		case SCR_AIN12_LOWCUT:
+			/* turn on relay */
+			new = old | SCR_RELAY;
+			set_scr(ice, new);
+			new |= SCR_AIN12_SEL1 | SCR_AIN12_SEL0;
+			set_scr(ice, new);
+			break;
+		default:
+			snd_BUG();
+		}
+		return 1;
+	}
+	/* no change */
+	return 0;
+}
+
+static int qtet_php_get(struct snd_kcontrol *kcontrol,
+		struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+	unsigned int val;
+	/* if phantom voltage =48V, phantom on */
+	val = get_scr(ice) & SCR_PHP_V;
+	ucontrol->value.integer.value[0] = val ? 1 : 0;
+	return 0;
+}
+
+static int qtet_php_put(struct snd_kcontrol *kcontrol,
+		struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+	unsigned int old, new;
+	old = new = get_scr(ice);
+	if (ucontrol->value.integer.value[0] /* phantom on requested */
+			&& (~old & SCR_PHP_V)) /* 0 = voltage 5V */ {
+		/* is off, turn on */
+		/* turn voltage on first, = 1 */
+		new = old | SCR_PHP_V;
+		set_scr(ice, new);
+		/* turn phantom on, = 0 */
+		new &= ~SCR_PHP;
+		set_scr(ice, new);
+	} else if (!ucontrol->value.integer.value[0] && (old & SCR_PHP_V)) {
+		/* phantom off requested and 1 = voltage 48V */
+		/* is on, turn off */
+		/* turn voltage off first, = 0 */
+		new = old & ~SCR_PHP_V;
+		set_scr(ice, new);
+		/* turn phantom off, = 1 */
+		new |= SCR_PHP;
+		set_scr(ice, new);
+	}
+	if (old != new)
+		return 1;
+	/* no change */
+	return 0;
+}
+
+#define PRIV_SW(xid, xbit, xreg)	[xid] = {.bit = xbit,\
+	.set_register = set_##xreg,\
+	.get_register = get_##xreg, }
+
+
+#define PRIV_ENUM2(xid, xbit, xreg, xtext1, xtext2)	[xid] = {.bit = xbit,\
+	.set_register = set_##xreg,\
+	.get_register = get_##xreg,\
+	.texts = {xtext1, xtext2} }
+
+static struct qtet_kcontrol_private qtet_privates[] = {
+	PRIV_ENUM2(IN12_SEL, CPLD_IN12_SEL, cpld, "An In 1/2", "An In 3/4"),
+	PRIV_ENUM2(IN34_SEL, CPLD_IN34_SEL, cpld, "An In 3/4", "IEC958 In"),
+	PRIV_ENUM2(AIN34_SEL, SCR_AIN34_SEL, scr, "Line In 3/4", "Hi-Z"),
+	PRIV_ENUM2(COAX_OUT, CPLD_COAX_OUT, cpld, "IEC958", "I2S"),
+	PRIV_SW(IN12_MON12, MCR_IN12_MON12, mcr),
+	PRIV_SW(IN12_MON34, MCR_IN12_MON34, mcr),
+	PRIV_SW(IN34_MON12, MCR_IN34_MON12, mcr),
+	PRIV_SW(IN34_MON34, MCR_IN34_MON34, mcr),
+	PRIV_SW(OUT12_MON34, MCR_OUT12_MON34, mcr),
+	PRIV_SW(OUT34_MON12, MCR_OUT34_MON12, mcr),
+};
+
+static int qtet_enum_info(struct snd_kcontrol *kcontrol,
+		struct snd_ctl_elem_info *uinfo)
+{
+	struct qtet_kcontrol_private private =
+		qtet_privates[kcontrol->private_value];
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
+	uinfo->count = 1;
+	uinfo->value.enumerated.items = ARRAY_SIZE(private.texts);
+
+	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
+		uinfo->value.enumerated.item =
+			uinfo->value.enumerated.items - 1;
+	strcpy(uinfo->value.enumerated.name,
+			private.texts[uinfo->value.enumerated.item]);
+
+	return 0;
+}
+
+static int qtet_sw_get(struct snd_kcontrol *kcontrol,
+		struct snd_ctl_elem_value *ucontrol)
+{
+	struct qtet_kcontrol_private private =
+		qtet_privates[kcontrol->private_value];
+	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+	ucontrol->value.integer.value[0] =
+		(private.get_register(ice) & private.bit) ? 1 : 0;
+	return 0;
+}
+
+static int qtet_sw_put(struct snd_kcontrol *kcontrol,
+		struct snd_ctl_elem_value *ucontrol)
+{
+	struct qtet_kcontrol_private private =
+		qtet_privates[kcontrol->private_value];
+	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+	unsigned int old, new;
+	old = private.get_register(ice);
+	if (ucontrol->value.integer.value[0])
+		new = old | private.bit;
+	else
+		new = old & ~private.bit;
+	if (old != new) {
+		private.set_register(ice, new);
+		return 1;
+	}
+	/* no change */
+	return 0;
+}
+
+#define qtet_sw_info	snd_ctl_boolean_mono_info
+
+#define QTET_CONTROL(xname, xtype, xpriv)	\
+	{.iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
+	.name = xname,\
+	.info = qtet_##xtype##_info,\
+	.get = qtet_sw_get,\
+	.put = qtet_sw_put,\
+	.private_value = xpriv }
+
+static struct snd_kcontrol_new qtet_controls[] __devinitdata = {
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "Master Playback Switch",
+		.info = qtet_sw_info,
+		.get = qtet_mute_get,
+		.put = qtet_mute_put,
+		.private_value = 0
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "Phantom Power",
+		.info = qtet_sw_info,
+		.get = qtet_php_get,
+		.put = qtet_php_put,
+		.private_value = 0
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "Analog In 1/2 Capture Switch",
+		.info = qtet_ain12_enum_info,
+		.get = qtet_ain12_sw_get,
+		.put = qtet_ain12_sw_put,
+		.private_value = 0
+	},
+	QTET_CONTROL("Analog In 3/4 Capture Switch", enum, AIN34_SEL),
+	QTET_CONTROL("PCM In 1/2 Capture Switch", enum, IN12_SEL),
+	QTET_CONTROL("PCM In 3/4 Capture Switch", enum, IN34_SEL),
+	QTET_CONTROL("Coax Output Source", enum, COAX_OUT),
+	QTET_CONTROL("Analog In 1/2 to Monitor 1/2", sw, IN12_MON12),
+	QTET_CONTROL("Analog In 1/2 to Monitor 3/4", sw, IN12_MON34),
+	QTET_CONTROL("Analog In 3/4 to Monitor 1/2", sw, IN34_MON12),
+	QTET_CONTROL("Analog In 3/4 to Monitor 3/4", sw, IN34_MON34),
+	QTET_CONTROL("Output 1/2 to Monitor 3/4", sw, OUT12_MON34),
+	QTET_CONTROL("Output 3/4 to Monitor 1/2", sw, OUT34_MON12),
+};
+
+static char *slave_vols[] __devinitdata = {
+	PCM_12_PLAYBACK_VOLUME,
+	PCM_34_PLAYBACK_VOLUME,
+	NULL
+};
+
+static __devinitdata
+DECLARE_TLV_DB_SCALE(qtet_master_db_scale, -6350, 50, 1);
+
+static struct snd_kcontrol __devinit *ctl_find(struct snd_card *card,
+		const char *name)
+{
+	struct snd_ctl_elem_id sid;
+	memset(&sid, 0, sizeof(sid));
+	/* FIXME: strcpy is bad. */
+	strcpy(sid.name, name);
+	sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
+	return snd_ctl_find_id(card, &sid);
+}
+
+static void __devinit add_slaves(struct snd_card *card,
+		struct snd_kcontrol *master, char **list)
+{
+	for (; *list; list++) {
+		struct snd_kcontrol *slave = ctl_find(card, *list);
+		if (slave)
+			snd_ctl_add_slave(master, slave);
+	}
+}
+
+static int __devinit qtet_add_controls(struct snd_ice1712 *ice)
+{
+	struct qtet_spec *spec = ice->spec;
+	int err, i;
+	struct snd_kcontrol *vmaster;
+	err = snd_ice1712_akm4xxx_build_controls(ice);
+	if (err < 0)
+		return err;
+	for (i = 0; i < ARRAY_SIZE(qtet_controls); i++) {
+		err = snd_ctl_add(ice->card,
+				snd_ctl_new1(&qtet_controls[i], ice));
+		if (err < 0)
+			return err;
+	}
+
+	/* Create virtual master control */
+	vmaster = snd_ctl_make_virtual_master("Master Playback Volume",
+			qtet_master_db_scale);
+	if (!vmaster)
+		return -ENOMEM;
+	add_slaves(ice->card, vmaster, slave_vols);
+	err = snd_ctl_add(ice->card, vmaster);
+	if (err < 0)
+		return err;
+	/* only capture SPDIF over AK4113 */
+	err = snd_ak4113_build(spec->ak4113,
+			ice->pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream);
+	if (err < 0)
+		return err;
+	return 0;
+}
+
+static inline int qtet_is_spdif_master(struct snd_ice1712 *ice)
+{
+	/* CPLD_SYNC_SEL: 0 = internal, 1 = external (i.e. spdif master) */
+	return (get_cpld(ice) & CPLD_SYNC_SEL) ? 1 : 0;
+}
+
+static unsigned int qtet_get_rate(struct snd_ice1712 *ice)
+{
+	int i;
+	unsigned char result;
+
+	result =  get_cpld(ice) & CPLD_CKS_MASK;
+	for (i = 0; i < ARRAY_SIZE(cks_vals); i++)
+		if (cks_vals[i] == result)
+			return qtet_rates[i];
+	return 0;
+}
+
+static int get_cks_val(int rate)
+{
+	int i;
+	for (i = 0; i < ARRAY_SIZE(qtet_rates); i++)
+		if (qtet_rates[i] == rate)
+			return cks_vals[i];
+	return 0;
+}
+
+/* setting new rate */
+static void qtet_set_rate(struct snd_ice1712 *ice, unsigned int rate)
+{
+	unsigned int new;
+	unsigned char val;
+	/* switching ice1724 to external clock - supplied by ext. circuits */
+	val = inb(ICEMT1724(ice, RATE));
+	outb(val | VT1724_SPDIF_MASTER, ICEMT1724(ice, RATE));
+
+	new =  (get_cpld(ice) & ~CPLD_CKS_MASK) | get_cks_val(rate);
+	/* switch to internal clock, drop CPLD_SYNC_SEL */
+	new &= ~CPLD_SYNC_SEL;
+	/* printk(KERN_DEBUG "QT - set_rate: old %x, new %x\n",
+	   get_cpld(ice), new); */
+	set_cpld(ice, new);
+}
+
+static inline unsigned char qtet_set_mclk(struct snd_ice1712 *ice,
+		unsigned int rate)
+{
+	/* no change in master clock */
+	return 0;
+}
+
+/* setting clock to external - SPDIF */
+static int qtet_set_spdif_clock(struct snd_ice1712 *ice, int type)
+{
+	unsigned int old, new;
+
+	old = new = get_cpld(ice);
+	new &= ~(CPLD_CKS_MASK | CPLD_WORD_SEL);
+	switch (type) {
+	case EXT_SPDIF_TYPE:
+		new |= CPLD_EXT_SPDIF;
+		break;
+	case EXT_WORDCLOCK_1FS_TYPE:
+		new |= CPLD_EXT_WORDCLOCK_1FS;
+		break;
+	case EXT_WORDCLOCK_256FS_TYPE:
+		new |= CPLD_EXT_WORDCLOCK_256FS;
+		break;
+	default:
+		snd_BUG();
+	}
+	if (old != new) {
+		set_cpld(ice, new);
+		/* changed */
+		return 1;
+	}
+	return 0;
+}
+
+static int qtet_get_spdif_master_type(struct snd_ice1712 *ice)
+{
+	unsigned int val;
+	int result;
+	val = get_cpld(ice);
+	/* checking only rate/clock-related bits */
+	val &= (CPLD_CKS_MASK | CPLD_WORD_SEL | CPLD_SYNC_SEL);
+	if (!(val & CPLD_SYNC_SEL)) {
+		/* switched to internal clock, is not any external type */
+		result = -1;
+	} else {
+		switch (val) {
+		case (CPLD_EXT_SPDIF):
+			result = EXT_SPDIF_TYPE;
+			break;
+		case (CPLD_EXT_WORDCLOCK_1FS):
+			result = EXT_WORDCLOCK_1FS_TYPE;
+			break;
+		case (CPLD_EXT_WORDCLOCK_256FS):
+			result = EXT_WORDCLOCK_256FS_TYPE;
+			break;
+		default:
+			/* undefined combination of external clock setup */
+			snd_BUG();
+			result = 0;
+		}
+	}
+	return result;
+}
+
+/* Called when ak4113 detects change in the input SPDIF stream */
+static void qtet_ak4113_change(struct ak4113 *ak4113, unsigned char c0,
+		unsigned char c1)
+{
+	struct snd_ice1712 *ice = ak4113->change_callback_private;
+	int rate;
+	if ((qtet_get_spdif_master_type(ice) == EXT_SPDIF_TYPE) &&
+			c1) {
+		/* only for SPDIF master mode, rate was changed */
+		rate = snd_ak4113_external_rate(ak4113);
+		/* printk(KERN_DEBUG "ak4113 - input rate changed to %d\n",
+		   rate); */
+		qtet_akm_set_rate_val(ice->akm, rate);
+	}
+}
+
+/*
+ * If clock slaved to SPDIF-IN, setting runtime rate
+ * to the detected external rate
+ */
+static void qtet_spdif_in_open(struct snd_ice1712 *ice,
+		struct snd_pcm_substream *substream)
+{
+	struct qtet_spec *spec = ice->spec;
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	int rate;
+
+	if (qtet_get_spdif_master_type(ice) != EXT_SPDIF_TYPE)
+		/* not external SPDIF, no rate limitation */
+		return;
+	/* only external SPDIF can detect incoming sample rate */
+	rate = snd_ak4113_external_rate(spec->ak4113);
+	if (rate >= runtime->hw.rate_min && rate <= runtime->hw.rate_max) {
+		runtime->hw.rate_min = rate;
+		runtime->hw.rate_max = rate;
+	}
+}
+
+/*
+ * initialize the chip
+ */
+static int __devinit qtet_init(struct snd_ice1712 *ice)
+{
+	static const unsigned char ak4113_init_vals[] = {
+		/* AK4113_REG_PWRDN */	AK4113_RST | AK4113_PWN |
+			AK4113_OCKS0 | AK4113_OCKS1,
+		/* AK4113_REQ_FORMAT */	AK4113_DIF_I24I2S | AK4113_VTX |
+			AK4113_DEM_OFF | AK4113_DEAU,
+		/* AK4113_REG_IO0 */	AK4113_OPS2 | AK4113_TXE |
+			AK4113_XTL_24_576M,
+		/* AK4113_REG_IO1 */	AK4113_EFH_1024LRCLK | AK4113_IPS(0),
+		/* AK4113_REG_INT0_MASK */	0,
+		/* AK4113_REG_INT1_MASK */	0,
+		/* AK4113_REG_DATDTS */		0,
+	};
+	int err;
+	struct qtet_spec *spec;
+	struct snd_akm4xxx *ak;
+	unsigned char val;
+
+	/* switching ice1724 to external clock - supplied by ext. circuits */
+	val = inb(ICEMT1724(ice, RATE));
+	outb(val | VT1724_SPDIF_MASTER, ICEMT1724(ice, RATE));
+
+	spec = kzalloc(sizeof(*spec), GFP_KERNEL);
+	if (!spec)
+		return -ENOMEM;
+	/* qtet is clocked by Xilinx array */
+	ice->hw_rates = &qtet_rates_info;
+	ice->is_spdif_master = qtet_is_spdif_master;
+	ice->get_rate = qtet_get_rate;
+	ice->set_rate = qtet_set_rate;
+	ice->set_mclk = qtet_set_mclk;
+	ice->set_spdif_clock = qtet_set_spdif_clock;
+	ice->get_spdif_master_type = qtet_get_spdif_master_type;
+	ice->ext_clock_names = ext_clock_names;
+	ice->ext_clock_count = ARRAY_SIZE(ext_clock_names);
+	/* since Qtet can detect correct SPDIF-in rate, all streams can be
+	 * limited to this specific rate */
+	ice->spdif.ops.open = ice->pro_open = qtet_spdif_in_open;
+	ice->spec = spec;
+
+	/* Mute Off */
+	/* SCR Initialize*/
+	/* keep codec power down first */
+	set_scr(ice, SCR_PHP);
+	udelay(1);
+	/* codec power up */
+	set_scr(ice, SCR_PHP | SCR_CODEC_PDN);
+
+	/* MCR Initialize */
+	set_mcr(ice, 0);
+
+	/* CPLD Initialize */
+	set_cpld(ice, 0);
+
+
+	ice->num_total_dacs = 2;
+	ice->num_total_adcs = 2;
+
+	ice->akm = kcalloc(2, sizeof(struct snd_akm4xxx), GFP_KERNEL);
+	ak = ice->akm;
+	if (!ak)
+		return -ENOMEM;
+	/* only one codec with two chips */
+	ice->akm_codecs = 1;
+	err = snd_ice1712_akm4xxx_init(ak, &akm_qtet_dac, NULL, ice);
+	if (err < 0)
+		return err;
+	err = snd_ak4113_create(ice->card,
+			qtet_ak4113_read,
+			qtet_ak4113_write,
+			ak4113_init_vals,
+			ice, &spec->ak4113);
+	if (err < 0)
+		return err;
+	/* callback for codecs rate setting */
+	spec->ak4113->change_callback = qtet_ak4113_change;
+	spec->ak4113->change_callback_private = ice;
+	/* AK41143 in Quartet can detect external rate correctly
+	 * (i.e. check_flags = 0) */
+	spec->ak4113->check_flags = 0;
+
+	proc_init(ice);
+
+	qtet_set_rate(ice, 44100);
+	return 0;
+}
+
+static unsigned char qtet_eeprom[] __devinitdata = {
+	[ICE_EEP2_SYSCONF]     = 0x28,	/* clock 256(24MHz), mpu401, 1xADC,
+					   1xDACs, SPDIF in */
+	[ICE_EEP2_ACLINK]      = 0x80,	/* I2S */
+	[ICE_EEP2_I2S]         = 0x78,	/* 96k, 24bit, 192k */
+	[ICE_EEP2_SPDIF]       = 0xc3,	/* out-en, out-int, in, out-ext */
+	[ICE_EEP2_GPIO_DIR]    = 0x00,	/* 0-7 inputs, switched to output
+					   only during output operations */
+	[ICE_EEP2_GPIO_DIR1]   = 0xff,  /* 8-15 outputs */
+	[ICE_EEP2_GPIO_DIR2]   = 0x00,
+	[ICE_EEP2_GPIO_MASK]   = 0xff,	/* changed only for OUT operations */
+	[ICE_EEP2_GPIO_MASK1]  = 0x00,
+	[ICE_EEP2_GPIO_MASK2]  = 0xff,
+
+	[ICE_EEP2_GPIO_STATE]  = 0x00, /* inputs */
+	[ICE_EEP2_GPIO_STATE1] = 0x7d, /* all 1, but GPIO_CPLD_RW
+					  and GPIO15 always zero */
+	[ICE_EEP2_GPIO_STATE2] = 0x00, /* inputs */
+};
+
+/* entry point */
+struct snd_ice1712_card_info snd_vt1724_qtet_cards[] __devinitdata = {
+	{
+		.subvendor = VT1724_SUBDEVICE_QTET,
+		.name = "Infrasonic Quartet",
+		.model = "quartet",
+		.chip_init = qtet_init,
+		.build_controls = qtet_add_controls,
+		.eeprom_size = sizeof(qtet_eeprom),
+		.eeprom_data = qtet_eeprom,
+	},
+	{ } /* terminator */
+};
diff --git a/sound/pci/ice1712/quartet.h b/sound/pci/ice1712/quartet.h
new file mode 100644
index 0000000..80809b7
--- /dev/null
+++ b/sound/pci/ice1712/quartet.h
@@ -0,0 +1,10 @@
+#ifndef __SOUND_QTET_H
+#define __SOUND_QTET_H
+
+#define QTET_DEVICE_DESC		"{Infrasonic,Quartet},"
+
+#define VT1724_SUBDEVICE_QTET		0x30305349	/* Infrasonic Quartet */
+
+extern struct snd_ice1712_card_info  snd_vt1724_qtet_cards[];
+
+#endif	/* __SOUND_QTET_H */