Adding upstream version 5.10.209.upstream/5.10.209

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 809 insertions, 0 deletions

diff --git a/sound/pci/ice1712/pontis.c b/sound/pci/ice1712/pontis.c
new file mode 100644
index 000000000..683909ca1
--- /dev/null
+++ b/sound/pci/ice1712/pontis.c
@@ -0,0 +1,809 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *   ALSA driver for ICEnsemble VT1724 (Envy24HT)
+ *
+ *   Lowlevel functions for Pontis MS300
+ *
+ *	Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
+ */
+
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/mutex.h>
+
+#include <sound/core.h>
+#include <sound/info.h>
+#include <sound/tlv.h>
+
+#include "ice1712.h"
+#include "envy24ht.h"
+#include "pontis.h"
+
+/* I2C addresses */
+#define WM_DEV		0x34
+#define CS_DEV		0x20
+
+/* WM8776 registers */
+#define WM_HP_ATTEN_L		0x00	/* headphone left attenuation */
+#define WM_HP_ATTEN_R		0x01	/* headphone left attenuation */
+#define WM_HP_MASTER		0x02	/* headphone master (both channels) */
+					/* override LLR */
+#define WM_DAC_ATTEN_L		0x03	/* digital left attenuation */
+#define WM_DAC_ATTEN_R		0x04
+#define WM_DAC_MASTER		0x05
+#define WM_PHASE_SWAP		0x06	/* DAC phase swap */
+#define WM_DAC_CTRL1		0x07
+#define WM_DAC_MUTE		0x08
+#define WM_DAC_CTRL2		0x09
+#define WM_DAC_INT		0x0a
+#define WM_ADC_INT		0x0b
+#define WM_MASTER_CTRL		0x0c
+#define WM_POWERDOWN		0x0d
+#define WM_ADC_ATTEN_L		0x0e
+#define WM_ADC_ATTEN_R		0x0f
+#define WM_ALC_CTRL1		0x10
+#define WM_ALC_CTRL2		0x11
+#define WM_ALC_CTRL3		0x12
+#define WM_NOISE_GATE		0x13
+#define WM_LIMITER		0x14
+#define WM_ADC_MUX		0x15
+#define WM_OUT_MUX		0x16
+#define WM_RESET		0x17
+
+/*
+ * GPIO
+ */
+#define PONTIS_CS_CS		(1<<4)	/* CS */
+#define PONTIS_CS_CLK		(1<<5)	/* CLK */
+#define PONTIS_CS_RDATA		(1<<6)	/* CS8416 -> VT1720 */
+#define PONTIS_CS_WDATA		(1<<7)	/* VT1720 -> CS8416 */
+
+
+/*
+ * get the current register value of WM codec
+ */
+static unsigned short wm_get(struct snd_ice1712 *ice, int reg)
+{
+	reg <<= 1;
+	return ((unsigned short)ice->akm[0].images[reg] << 8) |
+		ice->akm[0].images[reg + 1];
+}
+
+/*
+ * set the register value of WM codec and remember it
+ */
+static void wm_put_nocache(struct snd_ice1712 *ice, int reg, unsigned short val)
+{
+	unsigned short cval;
+	cval = (reg << 9) | val;
+	snd_vt1724_write_i2c(ice, WM_DEV, cval >> 8, cval & 0xff);
+}
+
+static void wm_put(struct snd_ice1712 *ice, int reg, unsigned short val)
+{
+	wm_put_nocache(ice, reg, val);
+	reg <<= 1;
+	ice->akm[0].images[reg] = val >> 8;
+	ice->akm[0].images[reg + 1] = val;
+}
+
+/*
+ * DAC volume attenuation mixer control (-64dB to 0dB)
+ */
+
+#define DAC_0dB	0xff
+#define DAC_RES	128
+#define DAC_MIN	(DAC_0dB - DAC_RES)
+
+static int wm_dac_vol_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 2;
+	uinfo->value.integer.min = 0;	/* mute */
+	uinfo->value.integer.max = DAC_RES;	/* 0dB, 0.5dB step */
+	return 0;
+}
+
+static int wm_dac_vol_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+	unsigned short val;
+	int i;
+
+	mutex_lock(&ice->gpio_mutex);
+	for (i = 0; i < 2; i++) {
+		val = wm_get(ice, WM_DAC_ATTEN_L + i) & 0xff;
+		val = val > DAC_MIN ? (val - DAC_MIN) : 0;
+		ucontrol->value.integer.value[i] = val;
+	}
+	mutex_unlock(&ice->gpio_mutex);
+	return 0;
+}
+
+static int wm_dac_vol_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+	unsigned short oval, nval;
+	int i, idx, change = 0;
+
+	mutex_lock(&ice->gpio_mutex);
+	for (i = 0; i < 2; i++) {
+		nval = ucontrol->value.integer.value[i];
+		nval = (nval ? (nval + DAC_MIN) : 0) & 0xff;
+		idx = WM_DAC_ATTEN_L + i;
+		oval = wm_get(ice, idx) & 0xff;
+		if (oval != nval) {
+			wm_put(ice, idx, nval);
+			wm_put_nocache(ice, idx, nval | 0x100);
+			change = 1;
+		}
+	}
+	mutex_unlock(&ice->gpio_mutex);
+	return change;
+}
+
+/*
+ * ADC gain mixer control (-64dB to 0dB)
+ */
+
+#define ADC_0dB	0xcf
+#define ADC_RES	128
+#define ADC_MIN	(ADC_0dB - ADC_RES)
+
+static int wm_adc_vol_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 2;
+	uinfo->value.integer.min = 0;	/* mute (-64dB) */
+	uinfo->value.integer.max = ADC_RES;	/* 0dB, 0.5dB step */
+	return 0;
+}
+
+static int wm_adc_vol_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+	unsigned short val;
+	int i;
+
+	mutex_lock(&ice->gpio_mutex);
+	for (i = 0; i < 2; i++) {
+		val = wm_get(ice, WM_ADC_ATTEN_L + i) & 0xff;
+		val = val > ADC_MIN ? (val - ADC_MIN) : 0;
+		ucontrol->value.integer.value[i] = val;
+	}
+	mutex_unlock(&ice->gpio_mutex);
+	return 0;
+}
+
+static int wm_adc_vol_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+	unsigned short ovol, nvol;
+	int i, idx, change = 0;
+
+	mutex_lock(&ice->gpio_mutex);
+	for (i = 0; i < 2; i++) {
+		nvol = ucontrol->value.integer.value[i];
+		nvol = nvol ? (nvol + ADC_MIN) : 0;
+		idx  = WM_ADC_ATTEN_L + i;
+		ovol = wm_get(ice, idx) & 0xff;
+		if (ovol != nvol) {
+			wm_put(ice, idx, nvol);
+			change = 1;
+		}
+	}
+	mutex_unlock(&ice->gpio_mutex);
+	return change;
+}
+
+/*
+ * ADC input mux mixer control
+ */
+#define wm_adc_mux_info		snd_ctl_boolean_mono_info
+
+static int wm_adc_mux_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+	int bit = kcontrol->private_value;
+
+	mutex_lock(&ice->gpio_mutex);
+	ucontrol->value.integer.value[0] = (wm_get(ice, WM_ADC_MUX) & (1 << bit)) ? 1 : 0;
+	mutex_unlock(&ice->gpio_mutex);
+	return 0;
+}
+
+static int wm_adc_mux_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+	int bit = kcontrol->private_value;
+	unsigned short oval, nval;
+	int change;
+
+	mutex_lock(&ice->gpio_mutex);
+	nval = oval = wm_get(ice, WM_ADC_MUX);
+	if (ucontrol->value.integer.value[0])
+		nval |= (1 << bit);
+	else
+		nval &= ~(1 << bit);
+	change = nval != oval;
+	if (change) {
+		wm_put(ice, WM_ADC_MUX, nval);
+	}
+	mutex_unlock(&ice->gpio_mutex);
+	return change;
+}
+
+/*
+ * Analog bypass (In -> Out)
+ */
+#define wm_bypass_info		snd_ctl_boolean_mono_info
+
+static int wm_bypass_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+
+	mutex_lock(&ice->gpio_mutex);
+	ucontrol->value.integer.value[0] = (wm_get(ice, WM_OUT_MUX) & 0x04) ? 1 : 0;
+	mutex_unlock(&ice->gpio_mutex);
+	return 0;
+}
+
+static int wm_bypass_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+	unsigned short val, oval;
+	int change = 0;
+
+	mutex_lock(&ice->gpio_mutex);
+	val = oval = wm_get(ice, WM_OUT_MUX);
+	if (ucontrol->value.integer.value[0])
+		val |= 0x04;
+	else
+		val &= ~0x04;
+	if (val != oval) {
+		wm_put(ice, WM_OUT_MUX, val);
+		change = 1;
+	}
+	mutex_unlock(&ice->gpio_mutex);
+	return change;
+}
+
+/*
+ * Left/Right swap
+ */
+#define wm_chswap_info		snd_ctl_boolean_mono_info
+
+static int wm_chswap_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+
+	mutex_lock(&ice->gpio_mutex);
+	ucontrol->value.integer.value[0] = (wm_get(ice, WM_DAC_CTRL1) & 0xf0) != 0x90;
+	mutex_unlock(&ice->gpio_mutex);
+	return 0;
+}
+
+static int wm_chswap_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+	unsigned short val, oval;
+	int change = 0;
+
+	mutex_lock(&ice->gpio_mutex);
+	oval = wm_get(ice, WM_DAC_CTRL1);
+	val = oval & 0x0f;
+	if (ucontrol->value.integer.value[0])
+		val |= 0x60;
+	else
+		val |= 0x90;
+	if (val != oval) {
+		wm_put(ice, WM_DAC_CTRL1, val);
+		wm_put_nocache(ice, WM_DAC_CTRL1, val);
+		change = 1;
+	}
+	mutex_unlock(&ice->gpio_mutex);
+	return change;
+}
+
+/*
+ * write data in the SPI mode
+ */
+static void set_gpio_bit(struct snd_ice1712 *ice, unsigned int bit, int val)
+{
+	unsigned int tmp = snd_ice1712_gpio_read(ice);
+	if (val)
+		tmp |= bit;
+	else
+		tmp &= ~bit;
+	snd_ice1712_gpio_write(ice, tmp);
+}
+
+static void spi_send_byte(struct snd_ice1712 *ice, unsigned char data)
+{
+	int i;
+	for (i = 0; i < 8; i++) {
+		set_gpio_bit(ice, PONTIS_CS_CLK, 0);
+		udelay(1);
+		set_gpio_bit(ice, PONTIS_CS_WDATA, data & 0x80);
+		udelay(1);
+		set_gpio_bit(ice, PONTIS_CS_CLK, 1);
+		udelay(1);
+		data <<= 1;
+	}
+}
+
+static unsigned int spi_read_byte(struct snd_ice1712 *ice)
+{
+	int i;
+	unsigned int val = 0;
+
+	for (i = 0; i < 8; i++) {
+		val <<= 1;
+		set_gpio_bit(ice, PONTIS_CS_CLK, 0);
+		udelay(1);
+		if (snd_ice1712_gpio_read(ice) & PONTIS_CS_RDATA)
+			val |= 1;
+		udelay(1);
+		set_gpio_bit(ice, PONTIS_CS_CLK, 1);
+		udelay(1);
+	}
+	return val;
+}
+
+
+static void spi_write(struct snd_ice1712 *ice, unsigned int dev, unsigned int reg, unsigned int data)
+{
+	snd_ice1712_gpio_set_dir(ice, PONTIS_CS_CS|PONTIS_CS_WDATA|PONTIS_CS_CLK);
+	snd_ice1712_gpio_set_mask(ice, ~(PONTIS_CS_CS|PONTIS_CS_WDATA|PONTIS_CS_CLK));
+	set_gpio_bit(ice, PONTIS_CS_CS, 0);
+	spi_send_byte(ice, dev & ~1); /* WRITE */
+	spi_send_byte(ice, reg); /* MAP */
+	spi_send_byte(ice, data); /* DATA */
+	/* trigger */
+	set_gpio_bit(ice, PONTIS_CS_CS, 1);
+	udelay(1);
+	/* restore */
+	snd_ice1712_gpio_set_mask(ice, ice->gpio.write_mask);
+	snd_ice1712_gpio_set_dir(ice, ice->gpio.direction);
+}
+
+static unsigned int spi_read(struct snd_ice1712 *ice, unsigned int dev, unsigned int reg)
+{
+	unsigned int val;
+	snd_ice1712_gpio_set_dir(ice, PONTIS_CS_CS|PONTIS_CS_WDATA|PONTIS_CS_CLK);
+	snd_ice1712_gpio_set_mask(ice, ~(PONTIS_CS_CS|PONTIS_CS_WDATA|PONTIS_CS_CLK));
+	set_gpio_bit(ice, PONTIS_CS_CS, 0);
+	spi_send_byte(ice, dev & ~1); /* WRITE */
+	spi_send_byte(ice, reg); /* MAP */
+	/* trigger */
+	set_gpio_bit(ice, PONTIS_CS_CS, 1);
+	udelay(1);
+	set_gpio_bit(ice, PONTIS_CS_CS, 0);
+	spi_send_byte(ice, dev | 1); /* READ */
+	val = spi_read_byte(ice);
+	/* trigger */
+	set_gpio_bit(ice, PONTIS_CS_CS, 1);
+	udelay(1);
+	/* restore */
+	snd_ice1712_gpio_set_mask(ice, ice->gpio.write_mask);
+	snd_ice1712_gpio_set_dir(ice, ice->gpio.direction);
+	return val;
+}
+
+
+/*
+ * SPDIF input source
+ */
+static int cs_source_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
+{
+	static const char * const texts[] = {
+		"Coax",		/* RXP0 */
+		"Optical",	/* RXP1 */
+		"CD",		/* RXP2 */
+	};
+	return snd_ctl_enum_info(uinfo, 1, 3, texts);
+}
+
+static int cs_source_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+
+	mutex_lock(&ice->gpio_mutex);
+	ucontrol->value.enumerated.item[0] = ice->gpio.saved[0];
+	mutex_unlock(&ice->gpio_mutex);
+	return 0;
+}
+
+static int cs_source_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+	unsigned char val;
+	int change = 0;
+
+	mutex_lock(&ice->gpio_mutex);
+	if (ucontrol->value.enumerated.item[0] != ice->gpio.saved[0]) {
+		ice->gpio.saved[0] = ucontrol->value.enumerated.item[0] & 3;
+		val = 0x80 | (ice->gpio.saved[0] << 3);
+		spi_write(ice, CS_DEV, 0x04, val);
+		change = 1;
+	}
+	mutex_unlock(&ice->gpio_mutex);
+	return change;
+}
+
+
+/*
+ * GPIO controls
+ */
+static int pontis_gpio_mask_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 = 0xffff; /* 16bit */
+	return 0;
+}
+
+static int pontis_gpio_mask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+	mutex_lock(&ice->gpio_mutex);
+	/* 4-7 reserved */
+	ucontrol->value.integer.value[0] = (~ice->gpio.write_mask & 0xffff) | 0x00f0;
+	mutex_unlock(&ice->gpio_mutex);
+	return 0;
+}
+	
+static int pontis_gpio_mask_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+	unsigned int val;
+	int changed;
+	mutex_lock(&ice->gpio_mutex);
+	/* 4-7 reserved */
+	val = (~ucontrol->value.integer.value[0] & 0xffff) | 0x00f0;
+	changed = val != ice->gpio.write_mask;
+	ice->gpio.write_mask = val;
+	mutex_unlock(&ice->gpio_mutex);
+	return changed;
+}
+
+static int pontis_gpio_dir_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+	mutex_lock(&ice->gpio_mutex);
+	/* 4-7 reserved */
+	ucontrol->value.integer.value[0] = ice->gpio.direction & 0xff0f;
+	mutex_unlock(&ice->gpio_mutex);
+	return 0;
+}
+	
+static int pontis_gpio_dir_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+	unsigned int val;
+	int changed;
+	mutex_lock(&ice->gpio_mutex);
+	/* 4-7 reserved */
+	val = ucontrol->value.integer.value[0] & 0xff0f;
+	changed = (val != ice->gpio.direction);
+	ice->gpio.direction = val;
+	mutex_unlock(&ice->gpio_mutex);
+	return changed;
+}
+
+static int pontis_gpio_data_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+	mutex_lock(&ice->gpio_mutex);
+	snd_ice1712_gpio_set_dir(ice, ice->gpio.direction);
+	snd_ice1712_gpio_set_mask(ice, ice->gpio.write_mask);
+	ucontrol->value.integer.value[0] = snd_ice1712_gpio_read(ice) & 0xffff;
+	mutex_unlock(&ice->gpio_mutex);
+	return 0;
+}
+
+static int pontis_gpio_data_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+	unsigned int val, nval;
+	int changed = 0;
+	mutex_lock(&ice->gpio_mutex);
+	snd_ice1712_gpio_set_dir(ice, ice->gpio.direction);
+	snd_ice1712_gpio_set_mask(ice, ice->gpio.write_mask);
+	val = snd_ice1712_gpio_read(ice) & 0xffff;
+	nval = ucontrol->value.integer.value[0] & 0xffff;
+	if (val != nval) {
+		snd_ice1712_gpio_write(ice, nval);
+		changed = 1;
+	}
+	mutex_unlock(&ice->gpio_mutex);
+	return changed;
+}
+
+static const DECLARE_TLV_DB_SCALE(db_scale_volume, -6400, 50, 1);
+
+/*
+ * mixers
+ */
+
+static const struct snd_kcontrol_new pontis_controls[] = {
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+			   SNDRV_CTL_ELEM_ACCESS_TLV_READ),
+		.name = "PCM Playback Volume",
+		.info = wm_dac_vol_info,
+		.get = wm_dac_vol_get,
+		.put = wm_dac_vol_put,
+		.tlv = { .p = db_scale_volume },
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+			   SNDRV_CTL_ELEM_ACCESS_TLV_READ),
+		.name = "Capture Volume",
+		.info = wm_adc_vol_info,
+		.get = wm_adc_vol_get,
+		.put = wm_adc_vol_put,
+		.tlv = { .p = db_scale_volume },
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "CD Capture Switch",
+		.info = wm_adc_mux_info,
+		.get = wm_adc_mux_get,
+		.put = wm_adc_mux_put,
+		.private_value = 0,
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "Line Capture Switch",
+		.info = wm_adc_mux_info,
+		.get = wm_adc_mux_get,
+		.put = wm_adc_mux_put,
+		.private_value = 1,
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "Analog Bypass Switch",
+		.info = wm_bypass_info,
+		.get = wm_bypass_get,
+		.put = wm_bypass_put,
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "Swap Output Channels",
+		.info = wm_chswap_info,
+		.get = wm_chswap_get,
+		.put = wm_chswap_put,
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "IEC958 Input Source",
+		.info = cs_source_info,
+		.get = cs_source_get,
+		.put = cs_source_put,
+	},
+	/* FIXME: which interface? */
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_CARD,
+		.name = "GPIO Mask",
+		.info = pontis_gpio_mask_info,
+		.get = pontis_gpio_mask_get,
+		.put = pontis_gpio_mask_put,
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_CARD,
+		.name = "GPIO Direction",
+		.info = pontis_gpio_mask_info,
+		.get = pontis_gpio_dir_get,
+		.put = pontis_gpio_dir_put,
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_CARD,
+		.name = "GPIO Data",
+		.info = pontis_gpio_mask_info,
+		.get = pontis_gpio_data_get,
+		.put = pontis_gpio_data_put,
+	},
+};
+
+
+/*
+ * WM codec registers
+ */
+static void wm_proc_regs_write(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
+{
+	struct snd_ice1712 *ice = entry->private_data;
+	char line[64];
+	unsigned int reg, val;
+	mutex_lock(&ice->gpio_mutex);
+	while (!snd_info_get_line(buffer, line, sizeof(line))) {
+		if (sscanf(line, "%x %x", &reg, &val) != 2)
+			continue;
+		if (reg <= 0x17 && val <= 0xffff)
+			wm_put(ice, reg, val);
+	}
+	mutex_unlock(&ice->gpio_mutex);
+}
+
+static void wm_proc_regs_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
+{
+	struct snd_ice1712 *ice = entry->private_data;
+	int reg, val;
+
+	mutex_lock(&ice->gpio_mutex);
+	for (reg = 0; reg <= 0x17; reg++) {
+		val = wm_get(ice, reg);
+		snd_iprintf(buffer, "%02x = %04x\n", reg, val);
+	}
+	mutex_unlock(&ice->gpio_mutex);
+}
+
+static void wm_proc_init(struct snd_ice1712 *ice)
+{
+	snd_card_rw_proc_new(ice->card, "wm_codec", ice, wm_proc_regs_read,
+			     wm_proc_regs_write);
+}
+
+static void cs_proc_regs_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
+{
+	struct snd_ice1712 *ice = entry->private_data;
+	int reg, val;
+
+	mutex_lock(&ice->gpio_mutex);
+	for (reg = 0; reg <= 0x26; reg++) {
+		val = spi_read(ice, CS_DEV, reg);
+		snd_iprintf(buffer, "%02x = %02x\n", reg, val);
+	}
+	val = spi_read(ice, CS_DEV, 0x7f);
+	snd_iprintf(buffer, "%02x = %02x\n", 0x7f, val);
+	mutex_unlock(&ice->gpio_mutex);
+}
+
+static void cs_proc_init(struct snd_ice1712 *ice)
+{
+	snd_card_ro_proc_new(ice->card, "cs_codec", ice, cs_proc_regs_read);
+}
+
+
+static int pontis_add_controls(struct snd_ice1712 *ice)
+{
+	unsigned int i;
+	int err;
+
+	for (i = 0; i < ARRAY_SIZE(pontis_controls); i++) {
+		err = snd_ctl_add(ice->card, snd_ctl_new1(&pontis_controls[i], ice));
+		if (err < 0)
+			return err;
+	}
+
+	wm_proc_init(ice);
+	cs_proc_init(ice);
+
+	return 0;
+}
+
+
+/*
+ * initialize the chip
+ */
+static int pontis_init(struct snd_ice1712 *ice)
+{
+	static const unsigned short wm_inits[] = {
+		/* These come first to reduce init pop noise */
+		WM_ADC_MUX,	0x00c0,	/* ADC mute */
+		WM_DAC_MUTE,	0x0001,	/* DAC softmute */
+		WM_DAC_CTRL1,	0x0000,	/* DAC mute */
+
+		WM_POWERDOWN,	0x0008,	/* All power-up except HP */
+		WM_RESET,	0x0000,	/* reset */
+	};
+	static const unsigned short wm_inits2[] = {
+		WM_MASTER_CTRL,	0x0022,	/* 256fs, slave mode */
+		WM_DAC_INT,	0x0022,	/* I2S, normal polarity, 24bit */
+		WM_ADC_INT,	0x0022,	/* I2S, normal polarity, 24bit */
+		WM_DAC_CTRL1,	0x0090,	/* DAC L/R */
+		WM_OUT_MUX,	0x0001,	/* OUT DAC */
+		WM_HP_ATTEN_L,	0x0179,	/* HP 0dB */
+		WM_HP_ATTEN_R,	0x0179,	/* HP 0dB */
+		WM_DAC_ATTEN_L,	0x0000,	/* DAC 0dB */
+		WM_DAC_ATTEN_L,	0x0100,	/* DAC 0dB */
+		WM_DAC_ATTEN_R,	0x0000,	/* DAC 0dB */
+		WM_DAC_ATTEN_R,	0x0100,	/* DAC 0dB */
+		/* WM_DAC_MASTER,	0x0100, */	/* DAC master muted */
+		WM_PHASE_SWAP,	0x0000,	/* phase normal */
+		WM_DAC_CTRL2,	0x0000,	/* no deemphasis, no ZFLG */
+		WM_ADC_ATTEN_L,	0x0000,	/* ADC muted */
+		WM_ADC_ATTEN_R,	0x0000,	/* ADC muted */
+#if 0
+		WM_ALC_CTRL1,	0x007b,	/* */
+		WM_ALC_CTRL2,	0x0000,	/* */
+		WM_ALC_CTRL3,	0x0000,	/* */
+		WM_NOISE_GATE,	0x0000,	/* */
+#endif
+		WM_DAC_MUTE,	0x0000,	/* DAC unmute */
+		WM_ADC_MUX,	0x0003,	/* ADC unmute, both CD/Line On */
+	};
+	static const unsigned char cs_inits[] = {
+		0x04,	0x80,	/* RUN, RXP0 */
+		0x05,	0x05,	/* slave, 24bit */
+		0x01,	0x00,
+		0x02,	0x00,
+		0x03,	0x00,
+	};
+	unsigned int i;
+
+	ice->vt1720 = 1;
+	ice->num_total_dacs = 2;
+	ice->num_total_adcs = 2;
+
+	/* to remember the register values */
+	ice->akm = kzalloc(sizeof(struct snd_akm4xxx), GFP_KERNEL);
+	if (! ice->akm)
+		return -ENOMEM;
+	ice->akm_codecs = 1;
+
+	/* HACK - use this as the SPDIF source.
+	 * don't call snd_ice1712_gpio_get/put(), otherwise it's overwritten
+	 */
+	ice->gpio.saved[0] = 0;
+
+	/* initialize WM8776 codec */
+	for (i = 0; i < ARRAY_SIZE(wm_inits); i += 2)
+		wm_put(ice, wm_inits[i], wm_inits[i+1]);
+	schedule_timeout_uninterruptible(1);
+	for (i = 0; i < ARRAY_SIZE(wm_inits2); i += 2)
+		wm_put(ice, wm_inits2[i], wm_inits2[i+1]);
+
+	/* initialize CS8416 codec */
+	/* assert PRST#; MT05 bit 7 */
+	outb(inb(ICEMT1724(ice, AC97_CMD)) | 0x80, ICEMT1724(ice, AC97_CMD));
+	mdelay(5);
+	/* deassert PRST# */
+	outb(inb(ICEMT1724(ice, AC97_CMD)) & ~0x80, ICEMT1724(ice, AC97_CMD));
+
+	for (i = 0; i < ARRAY_SIZE(cs_inits); i += 2)
+		spi_write(ice, CS_DEV, cs_inits[i], cs_inits[i+1]);
+
+	return 0;
+}
+
+
+/*
+ * Pontis boards don't provide the EEPROM data at all.
+ * hence the driver needs to sets up it properly.
+ */
+
+static const unsigned char pontis_eeprom[] = {
+	[ICE_EEP2_SYSCONF]     = 0x08,	/* clock 256, mpu401, spdif-in/ADC, 1DAC */
+	[ICE_EEP2_ACLINK]      = 0x80,	/* I2S */
+	[ICE_EEP2_I2S]         = 0xf8,	/* vol, 96k, 24bit, 192k */
+	[ICE_EEP2_SPDIF]       = 0xc3,	/* out-en, out-int, spdif-in */
+	[ICE_EEP2_GPIO_DIR]    = 0x07,
+	[ICE_EEP2_GPIO_DIR1]   = 0x00,
+	[ICE_EEP2_GPIO_DIR2]   = 0x00,	/* ignored */
+	[ICE_EEP2_GPIO_MASK]   = 0x0f,	/* 4-7 reserved for CS8416 */
+	[ICE_EEP2_GPIO_MASK1]  = 0xff,
+	[ICE_EEP2_GPIO_MASK2]  = 0x00,	/* ignored */
+	[ICE_EEP2_GPIO_STATE]  = 0x06,	/* 0-low, 1-high, 2-high */
+	[ICE_EEP2_GPIO_STATE1] = 0x00,
+	[ICE_EEP2_GPIO_STATE2] = 0x00,	/* ignored */
+};
+
+/* entry point */
+struct snd_ice1712_card_info snd_vt1720_pontis_cards[] = {
+	{
+		.subvendor = VT1720_SUBDEVICE_PONTIS_MS300,
+		.name = "Pontis MS300",
+		.model = "ms300",
+		.chip_init = pontis_init,
+		.build_controls = pontis_add_controls,
+		.eeprom_size = sizeof(pontis_eeprom),
+		.eeprom_data = pontis_eeprom,
+	},
+	{ } /* terminator */
+};