Adding upstream version 6.6.15.upstream/6.6.15

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

1 files changed, 1075 insertions, 0 deletions

diff --git a/sound/pci/ice1712/ews.c b/sound/pci/ice1712/ews.c
new file mode 100644
index 0000000000..8bb86b3c89
--- /dev/null
+++ b/sound/pci/ice1712/ews.c
@@ -0,0 +1,1075 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *   ALSA driver for ICEnsemble ICE1712 (Envy24)
+ *
+ *   Lowlevel functions for Terratec EWS88MT/D, EWX24/96, DMX 6Fire
+ *
+ *	Copyright (c) 2000 Jaroslav Kysela <perex@perex.cz>
+ *                    2002 Takashi Iwai <tiwai@suse.de>
+ */      
+
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <sound/core.h>
+#include <sound/cs8427.h>
+#include <sound/asoundef.h>
+
+#include "ice1712.h"
+#include "ews.h"
+
+#define SND_CS8404
+#include <sound/cs8403.h>
+
+enum {
+	EWS_I2C_CS8404 = 0, EWS_I2C_PCF1, EWS_I2C_PCF2,
+	EWS_I2C_88D = 0,
+	EWS_I2C_6FIRE = 0
+};
+	
+
+/* additional i2c devices for EWS boards */
+struct ews_spec {
+	struct snd_i2c_device *i2cdevs[3];
+};
+
+/*
+ * access via i2c mode (for EWX 24/96, EWS 88MT&D)
+ */
+
+/* send SDA and SCL */
+static void ewx_i2c_setlines(struct snd_i2c_bus *bus, int clk, int data)
+{
+	struct snd_ice1712 *ice = bus->private_data;
+	unsigned char tmp = 0;
+	if (clk)
+		tmp |= ICE1712_EWX2496_SERIAL_CLOCK;
+	if (data)
+		tmp |= ICE1712_EWX2496_SERIAL_DATA;
+	snd_ice1712_write(ice, ICE1712_IREG_GPIO_DATA, tmp);
+	udelay(5);
+}
+
+static int ewx_i2c_getclock(struct snd_i2c_bus *bus)
+{
+	struct snd_ice1712 *ice = bus->private_data;
+	return snd_ice1712_read(ice, ICE1712_IREG_GPIO_DATA) & ICE1712_EWX2496_SERIAL_CLOCK ? 1 : 0;
+}
+
+static int ewx_i2c_getdata(struct snd_i2c_bus *bus, int ack)
+{
+	struct snd_ice1712 *ice = bus->private_data;
+	int bit;
+	/* set RW pin to low */
+	snd_ice1712_write(ice, ICE1712_IREG_GPIO_WRITE_MASK, ~ICE1712_EWX2496_RW);
+	snd_ice1712_write(ice, ICE1712_IREG_GPIO_DATA, 0);
+	if (ack)
+		udelay(5);
+	bit = snd_ice1712_read(ice, ICE1712_IREG_GPIO_DATA) & ICE1712_EWX2496_SERIAL_DATA ? 1 : 0;
+	/* set RW pin to high */
+	snd_ice1712_write(ice, ICE1712_IREG_GPIO_DATA, ICE1712_EWX2496_RW);
+	/* reset write mask */
+	snd_ice1712_write(ice, ICE1712_IREG_GPIO_WRITE_MASK, ~ICE1712_EWX2496_SERIAL_CLOCK);
+	return bit;
+}
+
+static void ewx_i2c_start(struct snd_i2c_bus *bus)
+{
+	struct snd_ice1712 *ice = bus->private_data;
+	unsigned char mask;
+
+	snd_ice1712_save_gpio_status(ice);
+	/* set RW high */
+	mask = ICE1712_EWX2496_RW;
+	switch (ice->eeprom.subvendor) {
+	case ICE1712_SUBDEVICE_EWX2496:
+		mask |= ICE1712_EWX2496_AK4524_CS; /* CS high also */
+		break;
+	case ICE1712_SUBDEVICE_DMX6FIRE:
+		mask |= ICE1712_6FIRE_AK4524_CS_MASK; /* CS high also */
+		break;
+	}
+	snd_ice1712_gpio_write_bits(ice, mask, mask);
+}
+
+static void ewx_i2c_stop(struct snd_i2c_bus *bus)
+{
+	struct snd_ice1712 *ice = bus->private_data;
+	snd_ice1712_restore_gpio_status(ice);
+}
+
+static void ewx_i2c_direction(struct snd_i2c_bus *bus, int clock, int data)
+{
+	struct snd_ice1712 *ice = bus->private_data;
+	unsigned char mask = 0;
+
+	if (clock)
+		mask |= ICE1712_EWX2496_SERIAL_CLOCK; /* write SCL */
+	if (data)
+		mask |= ICE1712_EWX2496_SERIAL_DATA; /* write SDA */
+	ice->gpio.direction &= ~(ICE1712_EWX2496_SERIAL_CLOCK|ICE1712_EWX2496_SERIAL_DATA);
+	ice->gpio.direction |= mask;
+	snd_ice1712_write(ice, ICE1712_IREG_GPIO_DIRECTION, ice->gpio.direction);
+	snd_ice1712_write(ice, ICE1712_IREG_GPIO_WRITE_MASK, ~mask);
+}
+
+static struct snd_i2c_bit_ops snd_ice1712_ewx_cs8427_bit_ops = {
+	.start = ewx_i2c_start,
+	.stop = ewx_i2c_stop,
+	.direction = ewx_i2c_direction,
+	.setlines = ewx_i2c_setlines,
+	.getclock = ewx_i2c_getclock,
+	.getdata = ewx_i2c_getdata,
+};
+
+
+/*
+ * AK4524 access
+ */
+
+/* AK4524 chip select; address 0x48 bit 0-3 */
+static int snd_ice1712_ews88mt_chip_select(struct snd_ice1712 *ice, int chip_mask)
+{
+	struct ews_spec *spec = ice->spec;
+	unsigned char data, ndata;
+
+	if (snd_BUG_ON(chip_mask < 0 || chip_mask > 0x0f))
+		return -EINVAL;
+	snd_i2c_lock(ice->i2c);
+	if (snd_i2c_readbytes(spec->i2cdevs[EWS_I2C_PCF2], &data, 1) != 1)
+		goto __error;
+	ndata = (data & 0xf0) | chip_mask;
+	if (ndata != data)
+		if (snd_i2c_sendbytes(spec->i2cdevs[EWS_I2C_PCF2], &ndata, 1)
+		    != 1)
+			goto __error;
+	snd_i2c_unlock(ice->i2c);
+	return 0;
+
+     __error:
+	snd_i2c_unlock(ice->i2c);
+	dev_err(ice->card->dev,
+		"AK4524 chip select failed, check cable to the front module\n");
+	return -EIO;
+}
+
+/* start callback for EWS88MT, needs to select a certain chip mask */
+static void ews88mt_ak4524_lock(struct snd_akm4xxx *ak, int chip)
+{
+	struct snd_ice1712 *ice = ak->private_data[0];
+	unsigned char tmp;
+	/* assert AK4524 CS */
+	if (snd_ice1712_ews88mt_chip_select(ice, ~(1 << chip) & 0x0f) < 0)
+		dev_err(ice->card->dev, "fatal error (ews88mt chip select)\n");
+	snd_ice1712_save_gpio_status(ice);
+	tmp = ICE1712_EWS88_SERIAL_DATA |
+		ICE1712_EWS88_SERIAL_CLOCK |
+		ICE1712_EWS88_RW;
+	snd_ice1712_write(ice, ICE1712_IREG_GPIO_DIRECTION,
+			  ice->gpio.direction | tmp);
+	snd_ice1712_write(ice, ICE1712_IREG_GPIO_WRITE_MASK, ~tmp);
+}
+
+/* stop callback for EWS88MT, needs to deselect chip mask */
+static void ews88mt_ak4524_unlock(struct snd_akm4xxx *ak, int chip)
+{
+	struct snd_ice1712 *ice = ak->private_data[0];
+	snd_ice1712_restore_gpio_status(ice);
+	udelay(1);
+	snd_ice1712_ews88mt_chip_select(ice, 0x0f);
+}
+
+/* start callback for EWX24/96 */
+static void ewx2496_ak4524_lock(struct snd_akm4xxx *ak, int chip)
+{
+	struct snd_ice1712 *ice = ak->private_data[0];
+	unsigned char tmp;
+	snd_ice1712_save_gpio_status(ice);
+	tmp =  ICE1712_EWX2496_SERIAL_DATA |
+		ICE1712_EWX2496_SERIAL_CLOCK |
+		ICE1712_EWX2496_AK4524_CS |
+		ICE1712_EWX2496_RW;
+	snd_ice1712_write(ice, ICE1712_IREG_GPIO_DIRECTION,
+			  ice->gpio.direction | tmp);
+	snd_ice1712_write(ice, ICE1712_IREG_GPIO_WRITE_MASK, ~tmp);
+}
+
+/* start callback for DMX 6fire */
+static void dmx6fire_ak4524_lock(struct snd_akm4xxx *ak, int chip)
+{
+	struct snd_ak4xxx_private *priv = (void *)ak->private_value[0];
+	struct snd_ice1712 *ice = ak->private_data[0];
+	unsigned char tmp;
+	snd_ice1712_save_gpio_status(ice);
+	tmp = priv->cs_mask = priv->cs_addr = (1 << chip) & ICE1712_6FIRE_AK4524_CS_MASK;
+	tmp |= ICE1712_6FIRE_SERIAL_DATA |
+		ICE1712_6FIRE_SERIAL_CLOCK |
+		ICE1712_6FIRE_RW;
+	snd_ice1712_write(ice, ICE1712_IREG_GPIO_DIRECTION,
+			  ice->gpio.direction | tmp);
+	snd_ice1712_write(ice, ICE1712_IREG_GPIO_WRITE_MASK, ~tmp);
+}
+
+/*
+ * CS8404 interface on EWS88MT/D
+ */
+
+static void snd_ice1712_ews_cs8404_spdif_write(struct snd_ice1712 *ice, unsigned char bits)
+{
+	struct ews_spec *spec = ice->spec;
+	unsigned char bytes[2];
+
+	snd_i2c_lock(ice->i2c);
+	switch (ice->eeprom.subvendor) {
+	case ICE1712_SUBDEVICE_EWS88MT:
+	case ICE1712_SUBDEVICE_EWS88MT_NEW:
+	case ICE1712_SUBDEVICE_PHASE88:
+	case ICE1712_SUBDEVICE_TS88:
+		if (snd_i2c_sendbytes(spec->i2cdevs[EWS_I2C_CS8404], &bits, 1)
+		    != 1)
+			goto _error;
+		break;
+	case ICE1712_SUBDEVICE_EWS88D:
+		if (snd_i2c_readbytes(spec->i2cdevs[EWS_I2C_88D], bytes, 2)
+		    != 2)
+			goto _error;
+		if (bits != bytes[1]) {
+			bytes[1] = bits;
+			if (snd_i2c_sendbytes(spec->i2cdevs[EWS_I2C_88D],
+					      bytes, 2) != 2)
+				goto _error;
+		}
+		break;
+	}
+ _error:
+	snd_i2c_unlock(ice->i2c);
+}
+
+/*
+ */
+
+static void ews88_spdif_default_get(struct snd_ice1712 *ice, struct snd_ctl_elem_value *ucontrol)
+{
+	snd_cs8404_decode_spdif_bits(&ucontrol->value.iec958, ice->spdif.cs8403_bits);
+}
+
+static int ews88_spdif_default_put(struct snd_ice1712 *ice, struct snd_ctl_elem_value *ucontrol)
+{
+	unsigned int val;
+	int change;
+
+	val = snd_cs8404_encode_spdif_bits(&ucontrol->value.iec958);
+	spin_lock_irq(&ice->reg_lock);
+	change = ice->spdif.cs8403_bits != val;
+	ice->spdif.cs8403_bits = val;
+	if (change && ice->playback_pro_substream == NULL) {
+		spin_unlock_irq(&ice->reg_lock);
+		snd_ice1712_ews_cs8404_spdif_write(ice, val);
+	} else {
+		spin_unlock_irq(&ice->reg_lock);
+	}
+	return change;
+}
+
+static void ews88_spdif_stream_get(struct snd_ice1712 *ice, struct snd_ctl_elem_value *ucontrol)
+{
+	snd_cs8404_decode_spdif_bits(&ucontrol->value.iec958, ice->spdif.cs8403_stream_bits);
+}
+
+static int ews88_spdif_stream_put(struct snd_ice1712 *ice, struct snd_ctl_elem_value *ucontrol)
+{
+	unsigned int val;
+	int change;
+
+	val = snd_cs8404_encode_spdif_bits(&ucontrol->value.iec958);
+	spin_lock_irq(&ice->reg_lock);
+	change = ice->spdif.cs8403_stream_bits != val;
+	ice->spdif.cs8403_stream_bits = val;
+	if (change && ice->playback_pro_substream != NULL) {
+		spin_unlock_irq(&ice->reg_lock);
+		snd_ice1712_ews_cs8404_spdif_write(ice, val);
+	} else {
+		spin_unlock_irq(&ice->reg_lock);
+	}
+	return change;
+}
+
+
+/* open callback */
+static void ews88_open_spdif(struct snd_ice1712 *ice, struct snd_pcm_substream *substream)
+{
+	ice->spdif.cs8403_stream_bits = ice->spdif.cs8403_bits;
+}
+
+/* set up SPDIF for EWS88MT / EWS88D */
+static void ews88_setup_spdif(struct snd_ice1712 *ice, int rate)
+{
+	unsigned long flags;
+	unsigned char tmp;
+	int change;
+
+	spin_lock_irqsave(&ice->reg_lock, flags);
+	tmp = ice->spdif.cs8403_stream_bits;
+	if (tmp & 0x10)		/* consumer */
+		tmp &= (tmp & 0x01) ? ~0x06 : ~0x60;
+	switch (rate) {
+	case 32000: tmp |= (tmp & 0x01) ? 0x02 : 0x00; break;
+	case 44100: tmp |= (tmp & 0x01) ? 0x06 : 0x40; break;
+	case 48000: tmp |= (tmp & 0x01) ? 0x04 : 0x20; break;
+	default: tmp |= (tmp & 0x01) ? 0x06 : 0x40; break;
+	}
+	change = ice->spdif.cs8403_stream_bits != tmp;
+	ice->spdif.cs8403_stream_bits = tmp;
+	spin_unlock_irqrestore(&ice->reg_lock, flags);
+	if (change)
+		snd_ctl_notify(ice->card, SNDRV_CTL_EVENT_MASK_VALUE, &ice->spdif.stream_ctl->id);
+	snd_ice1712_ews_cs8404_spdif_write(ice, tmp);
+}
+
+
+/*
+ */
+static const struct snd_akm4xxx akm_ews88mt = {
+	.num_adcs = 8,
+	.num_dacs = 8,
+	.type = SND_AK4524,
+	.ops = {
+		.lock = ews88mt_ak4524_lock,
+		.unlock = ews88mt_ak4524_unlock
+	}
+};
+
+static const struct snd_ak4xxx_private akm_ews88mt_priv = {
+	.caddr = 2,
+	.cif = 1, /* CIF high */
+	.data_mask = ICE1712_EWS88_SERIAL_DATA,
+	.clk_mask = ICE1712_EWS88_SERIAL_CLOCK,
+	.cs_mask = 0,
+	.cs_addr = 0,
+	.cs_none = 0, /* no chip select on gpio */
+	.add_flags = ICE1712_EWS88_RW, /* set rw bit high */
+	.mask_flags = 0,
+};
+
+static const struct snd_akm4xxx akm_ewx2496 = {
+	.num_adcs = 2,
+	.num_dacs = 2,
+	.type = SND_AK4524,
+	.ops = {
+		.lock = ewx2496_ak4524_lock
+	}
+};
+
+static const struct snd_ak4xxx_private akm_ewx2496_priv = {
+	.caddr = 2,
+	.cif = 1, /* CIF high */
+	.data_mask = ICE1712_EWS88_SERIAL_DATA,
+	.clk_mask = ICE1712_EWS88_SERIAL_CLOCK,
+	.cs_mask = ICE1712_EWX2496_AK4524_CS,
+	.cs_addr = ICE1712_EWX2496_AK4524_CS,
+	.cs_none = 0,
+	.add_flags = ICE1712_EWS88_RW, /* set rw bit high */
+	.mask_flags = 0,
+};
+
+static const struct snd_akm4xxx akm_6fire = {
+	.num_adcs = 6,
+	.num_dacs = 6,
+	.type = SND_AK4524,
+	.ops = {
+		.lock = dmx6fire_ak4524_lock
+	}
+};
+
+static const struct snd_ak4xxx_private akm_6fire_priv = {
+	.caddr = 2,
+	.cif = 1, /* CIF high */
+	.data_mask = ICE1712_6FIRE_SERIAL_DATA,
+	.clk_mask = ICE1712_6FIRE_SERIAL_CLOCK,
+	.cs_mask = 0,
+	.cs_addr = 0, /* set later */
+	.cs_none = 0,
+	.add_flags = ICE1712_6FIRE_RW, /* set rw bit high */
+	.mask_flags = 0,
+};
+
+/*
+ * initialize the chip
+ */
+
+/* 6fire specific */
+#define PCF9554_REG_INPUT      0
+#define PCF9554_REG_OUTPUT     1
+#define PCF9554_REG_POLARITY   2
+#define PCF9554_REG_CONFIG     3
+
+static int snd_ice1712_6fire_write_pca(struct snd_ice1712 *ice, unsigned char reg, unsigned char data);
+
+static int snd_ice1712_ews_init(struct snd_ice1712 *ice)
+{
+	int err;
+	struct snd_akm4xxx *ak;
+	struct ews_spec *spec;
+
+	/* set the analog DACs */
+	switch (ice->eeprom.subvendor) {
+	case ICE1712_SUBDEVICE_EWX2496:
+		ice->num_total_dacs = 2;
+		ice->num_total_adcs = 2;
+		break;	
+	case ICE1712_SUBDEVICE_EWS88MT:
+	case ICE1712_SUBDEVICE_EWS88MT_NEW:
+	case ICE1712_SUBDEVICE_PHASE88:
+	case ICE1712_SUBDEVICE_TS88:
+		ice->num_total_dacs = 8;
+		ice->num_total_adcs = 8;
+		break;
+	case ICE1712_SUBDEVICE_EWS88D:
+		/* Note: not analog but ADAT I/O */
+		ice->num_total_dacs = 8;
+		ice->num_total_adcs = 8;
+		break;
+	case ICE1712_SUBDEVICE_DMX6FIRE:
+		ice->num_total_dacs = 6;
+		ice->num_total_adcs = 6;
+		break;
+	}
+
+	spec = kzalloc(sizeof(*spec), GFP_KERNEL);
+	if (!spec)
+		return -ENOMEM;
+	ice->spec = spec;
+
+	/* create i2c */
+	err = snd_i2c_bus_create(ice->card, "ICE1712 GPIO 1", NULL, &ice->i2c);
+	if (err < 0) {
+		dev_err(ice->card->dev, "unable to create I2C bus\n");
+		return err;
+	}
+	ice->i2c->private_data = ice;
+	ice->i2c->hw_ops.bit = &snd_ice1712_ewx_cs8427_bit_ops;
+
+	/* create i2c devices */
+	switch (ice->eeprom.subvendor) {
+	case ICE1712_SUBDEVICE_DMX6FIRE:
+		err = snd_i2c_device_create(ice->i2c, "PCF9554",
+					    ICE1712_6FIRE_PCF9554_ADDR,
+					    &spec->i2cdevs[EWS_I2C_6FIRE]);
+		if (err < 0) {
+			dev_err(ice->card->dev,
+				"PCF9554 initialization failed\n");
+			return err;
+		}
+		snd_ice1712_6fire_write_pca(ice, PCF9554_REG_CONFIG, 0x80);
+		break;
+	case ICE1712_SUBDEVICE_EWS88MT:
+	case ICE1712_SUBDEVICE_EWS88MT_NEW:
+	case ICE1712_SUBDEVICE_PHASE88:
+	case ICE1712_SUBDEVICE_TS88:
+
+		err = snd_i2c_device_create(ice->i2c, "CS8404",
+					    ICE1712_EWS88MT_CS8404_ADDR,
+					    &spec->i2cdevs[EWS_I2C_CS8404]);
+		if (err < 0)
+			return err;
+		err = snd_i2c_device_create(ice->i2c, "PCF8574 (1st)",
+					    ICE1712_EWS88MT_INPUT_ADDR,
+					    &spec->i2cdevs[EWS_I2C_PCF1]);
+		if (err < 0)
+			return err;
+		err = snd_i2c_device_create(ice->i2c, "PCF8574 (2nd)",
+					    ICE1712_EWS88MT_OUTPUT_ADDR,
+					    &spec->i2cdevs[EWS_I2C_PCF2]);
+		if (err < 0)
+			return err;
+		/* Check if the front module is connected */
+		err = snd_ice1712_ews88mt_chip_select(ice, 0x0f);
+		if (err < 0)
+			return err;
+		break;
+	case ICE1712_SUBDEVICE_EWS88D:
+		err = snd_i2c_device_create(ice->i2c, "PCF8575",
+					    ICE1712_EWS88D_PCF_ADDR,
+					    &spec->i2cdevs[EWS_I2C_88D]);
+		if (err < 0)
+			return err;
+		break;
+	}
+
+	/* set up SPDIF interface */
+	switch (ice->eeprom.subvendor) {
+	case ICE1712_SUBDEVICE_EWX2496:
+		err = snd_ice1712_init_cs8427(ice, CS8427_BASE_ADDR);
+		if (err < 0)
+			return err;
+		snd_cs8427_reg_write(ice->cs8427, CS8427_REG_RECVERRMASK, CS8427_UNLOCK | CS8427_CONF | CS8427_BIP | CS8427_PAR);
+		break;
+	case ICE1712_SUBDEVICE_DMX6FIRE:
+		err = snd_ice1712_init_cs8427(ice, ICE1712_6FIRE_CS8427_ADDR);
+		if (err < 0)
+			return err;
+		snd_cs8427_reg_write(ice->cs8427, CS8427_REG_RECVERRMASK, CS8427_UNLOCK | CS8427_CONF | CS8427_BIP | CS8427_PAR);
+		break;
+	case ICE1712_SUBDEVICE_EWS88MT:
+	case ICE1712_SUBDEVICE_EWS88MT_NEW:
+	case ICE1712_SUBDEVICE_PHASE88:
+	case ICE1712_SUBDEVICE_TS88:
+	case ICE1712_SUBDEVICE_EWS88D:
+		/* set up CS8404 */
+		ice->spdif.ops.open = ews88_open_spdif;
+		ice->spdif.ops.setup_rate = ews88_setup_spdif;
+		ice->spdif.ops.default_get = ews88_spdif_default_get;
+		ice->spdif.ops.default_put = ews88_spdif_default_put;
+		ice->spdif.ops.stream_get = ews88_spdif_stream_get;
+		ice->spdif.ops.stream_put = ews88_spdif_stream_put;
+		/* Set spdif defaults */
+		snd_ice1712_ews_cs8404_spdif_write(ice, ice->spdif.cs8403_bits);
+		break;
+	}
+
+	/* no analog? */
+	switch (ice->eeprom.subvendor) {
+	case ICE1712_SUBDEVICE_EWS88D:
+		return 0;
+	}
+
+	/* analog section */
+	ak = ice->akm = kzalloc(sizeof(struct snd_akm4xxx), GFP_KERNEL);
+	if (! ak)
+		return -ENOMEM;
+	ice->akm_codecs = 1;
+
+	switch (ice->eeprom.subvendor) {
+	case ICE1712_SUBDEVICE_EWS88MT:
+	case ICE1712_SUBDEVICE_EWS88MT_NEW:
+	case ICE1712_SUBDEVICE_PHASE88:
+	case ICE1712_SUBDEVICE_TS88:
+		err = snd_ice1712_akm4xxx_init(ak, &akm_ews88mt, &akm_ews88mt_priv, ice);
+		break;
+	case ICE1712_SUBDEVICE_EWX2496:
+		err = snd_ice1712_akm4xxx_init(ak, &akm_ewx2496, &akm_ewx2496_priv, ice);
+		break;
+	case ICE1712_SUBDEVICE_DMX6FIRE:
+		err = snd_ice1712_akm4xxx_init(ak, &akm_6fire, &akm_6fire_priv, ice);
+		break;
+	default:
+		err = 0;
+	}
+
+	return err;
+}
+
+/*
+ * EWX 24/96 specific controls
+ */
+
+/* i/o sensitivity - this callback is shared among other devices, too */
+static int snd_ice1712_ewx_io_sense_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo){
+
+	static const char * const texts[2] = {
+		"+4dBu", "-10dBV",
+	};
+	return snd_ctl_enum_info(uinfo, 1, 2, texts);
+}
+
+static int snd_ice1712_ewx_io_sense_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+	unsigned char mask = kcontrol->private_value & 0xff;
+	
+	snd_ice1712_save_gpio_status(ice);
+	ucontrol->value.enumerated.item[0] = snd_ice1712_read(ice, ICE1712_IREG_GPIO_DATA) & mask ? 1 : 0;
+	snd_ice1712_restore_gpio_status(ice);
+	return 0;
+}
+
+static int snd_ice1712_ewx_io_sense_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+	unsigned char mask = kcontrol->private_value & 0xff;
+	int val, nval;
+
+	if (kcontrol->private_value & (1 << 31))
+		return -EPERM;
+	nval = ucontrol->value.enumerated.item[0] ? mask : 0;
+	snd_ice1712_save_gpio_status(ice);
+	val = snd_ice1712_read(ice, ICE1712_IREG_GPIO_DATA);
+	nval |= val & ~mask;
+	snd_ice1712_write(ice, ICE1712_IREG_GPIO_DATA, nval);
+	snd_ice1712_restore_gpio_status(ice);
+	return val != nval;
+}
+
+static const struct snd_kcontrol_new snd_ice1712_ewx2496_controls[] = {
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "Input Sensitivity Switch",
+		.info = snd_ice1712_ewx_io_sense_info,
+		.get = snd_ice1712_ewx_io_sense_get,
+		.put = snd_ice1712_ewx_io_sense_put,
+		.private_value = ICE1712_EWX2496_AIN_SEL,
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "Output Sensitivity Switch",
+		.info = snd_ice1712_ewx_io_sense_info,
+		.get = snd_ice1712_ewx_io_sense_get,
+		.put = snd_ice1712_ewx_io_sense_put,
+		.private_value = ICE1712_EWX2496_AOUT_SEL,
+	},
+};
+
+
+/*
+ * EWS88MT specific controls
+ */
+/* analog output sensitivity;; address 0x48 bit 6 */
+static int snd_ice1712_ews88mt_output_sense_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+	struct ews_spec *spec = ice->spec;
+	unsigned char data;
+
+	snd_i2c_lock(ice->i2c);
+	if (snd_i2c_readbytes(spec->i2cdevs[EWS_I2C_PCF2], &data, 1) != 1) {
+		snd_i2c_unlock(ice->i2c);
+		return -EIO;
+	}
+	snd_i2c_unlock(ice->i2c);
+	ucontrol->value.enumerated.item[0] = data & ICE1712_EWS88MT_OUTPUT_SENSE ? 1 : 0; /* high = -10dBV, low = +4dBu */
+	return 0;
+}
+
+/* analog output sensitivity;; address 0x48 bit 6 */
+static int snd_ice1712_ews88mt_output_sense_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+	struct ews_spec *spec = ice->spec;
+	unsigned char data, ndata;
+
+	snd_i2c_lock(ice->i2c);
+	if (snd_i2c_readbytes(spec->i2cdevs[EWS_I2C_PCF2], &data, 1) != 1) {
+		snd_i2c_unlock(ice->i2c);
+		return -EIO;
+	}
+	ndata = (data & ~ICE1712_EWS88MT_OUTPUT_SENSE) | (ucontrol->value.enumerated.item[0] ? ICE1712_EWS88MT_OUTPUT_SENSE : 0);
+	if (ndata != data && snd_i2c_sendbytes(spec->i2cdevs[EWS_I2C_PCF2],
+					       &ndata, 1) != 1) {
+		snd_i2c_unlock(ice->i2c);
+		return -EIO;
+	}
+	snd_i2c_unlock(ice->i2c);
+	return ndata != data;
+}
+
+/* analog input sensitivity; address 0x46 */
+static int snd_ice1712_ews88mt_input_sense_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+	struct ews_spec *spec = ice->spec;
+	int channel = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
+	unsigned char data;
+
+	if (snd_BUG_ON(channel < 0 || channel > 7))
+		return 0;
+	snd_i2c_lock(ice->i2c);
+	if (snd_i2c_readbytes(spec->i2cdevs[EWS_I2C_PCF1], &data, 1) != 1) {
+		snd_i2c_unlock(ice->i2c);
+		return -EIO;
+	}
+	/* reversed; high = +4dBu, low = -10dBV */
+	ucontrol->value.enumerated.item[0] = data & (1 << channel) ? 0 : 1;
+	snd_i2c_unlock(ice->i2c);
+	return 0;
+}
+
+/* analog output sensitivity; address 0x46 */
+static int snd_ice1712_ews88mt_input_sense_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+	struct ews_spec *spec = ice->spec;
+	int channel = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
+	unsigned char data, ndata;
+
+	if (snd_BUG_ON(channel < 0 || channel > 7))
+		return 0;
+	snd_i2c_lock(ice->i2c);
+	if (snd_i2c_readbytes(spec->i2cdevs[EWS_I2C_PCF1], &data, 1) != 1) {
+		snd_i2c_unlock(ice->i2c);
+		return -EIO;
+	}
+	ndata = (data & ~(1 << channel)) | (ucontrol->value.enumerated.item[0] ? 0 : (1 << channel));
+	if (ndata != data && snd_i2c_sendbytes(spec->i2cdevs[EWS_I2C_PCF1],
+					       &ndata, 1) != 1) {
+		snd_i2c_unlock(ice->i2c);
+		return -EIO;
+	}
+	snd_i2c_unlock(ice->i2c);
+	return ndata != data;
+}
+
+static const struct snd_kcontrol_new snd_ice1712_ews88mt_input_sense = {
+	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name = "Input Sensitivity Switch",
+	.info = snd_ice1712_ewx_io_sense_info,
+	.get = snd_ice1712_ews88mt_input_sense_get,
+	.put = snd_ice1712_ews88mt_input_sense_put,
+	.count = 8,
+};
+
+static const struct snd_kcontrol_new snd_ice1712_ews88mt_output_sense = {
+	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name = "Output Sensitivity Switch",
+	.info = snd_ice1712_ewx_io_sense_info,
+	.get = snd_ice1712_ews88mt_output_sense_get,
+	.put = snd_ice1712_ews88mt_output_sense_put,
+};
+
+
+/*
+ * EWS88D specific controls
+ */
+
+#define snd_ice1712_ews88d_control_info		snd_ctl_boolean_mono_info
+
+static int snd_ice1712_ews88d_control_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+	struct ews_spec *spec = ice->spec;
+	int shift = kcontrol->private_value & 0xff;
+	int invert = (kcontrol->private_value >> 8) & 1;
+	unsigned char data[2];
+	
+	snd_i2c_lock(ice->i2c);
+	if (snd_i2c_readbytes(spec->i2cdevs[EWS_I2C_88D], data, 2) != 2) {
+		snd_i2c_unlock(ice->i2c);
+		return -EIO;
+	}
+	snd_i2c_unlock(ice->i2c);
+	data[0] = (data[shift >> 3] >> (shift & 7)) & 0x01;
+	if (invert)
+		data[0] ^= 0x01;
+	ucontrol->value.integer.value[0] = data[0];
+	return 0;
+}
+
+static int snd_ice1712_ews88d_control_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+	struct ews_spec *spec = ice->spec;
+	int shift = kcontrol->private_value & 0xff;
+	int invert = (kcontrol->private_value >> 8) & 1;
+	unsigned char data[2], ndata[2];
+	int change;
+
+	snd_i2c_lock(ice->i2c);
+	if (snd_i2c_readbytes(spec->i2cdevs[EWS_I2C_88D], data, 2) != 2) {
+		snd_i2c_unlock(ice->i2c);
+		return -EIO;
+	}
+	ndata[shift >> 3] = data[shift >> 3] & ~(1 << (shift & 7));
+	if (invert) {
+		if (! ucontrol->value.integer.value[0])
+			ndata[shift >> 3] |= (1 << (shift & 7));
+	} else {
+		if (ucontrol->value.integer.value[0])
+			ndata[shift >> 3] |= (1 << (shift & 7));
+	}
+	change = (data[shift >> 3] != ndata[shift >> 3]);
+	if (change &&
+	    snd_i2c_sendbytes(spec->i2cdevs[EWS_I2C_88D], data, 2) != 2) {
+		snd_i2c_unlock(ice->i2c);
+		return -EIO;
+	}
+	snd_i2c_unlock(ice->i2c);
+	return change;
+}
+
+#define EWS88D_CONTROL(xiface, xname, xshift, xinvert, xaccess) \
+{ .iface = xiface,\
+  .name = xname,\
+  .access = xaccess,\
+  .info = snd_ice1712_ews88d_control_info,\
+  .get = snd_ice1712_ews88d_control_get,\
+  .put = snd_ice1712_ews88d_control_put,\
+  .private_value = xshift | (xinvert << 8),\
+}
+
+static const struct snd_kcontrol_new snd_ice1712_ews88d_controls[] = {
+	EWS88D_CONTROL(SNDRV_CTL_ELEM_IFACE_MIXER, "IEC958 Input Optical", 0, 1, 0), /* inverted */
+	EWS88D_CONTROL(SNDRV_CTL_ELEM_IFACE_MIXER, "ADAT Output Optical", 1, 0, 0),
+	EWS88D_CONTROL(SNDRV_CTL_ELEM_IFACE_MIXER, "ADAT External Master Clock", 2, 0, 0),
+	EWS88D_CONTROL(SNDRV_CTL_ELEM_IFACE_MIXER, "Enable ADAT", 3, 0, 0),
+	EWS88D_CONTROL(SNDRV_CTL_ELEM_IFACE_MIXER, "ADAT Through", 4, 1, 0),
+};
+
+
+/*
+ * DMX 6Fire specific controls
+ */
+
+static int snd_ice1712_6fire_read_pca(struct snd_ice1712 *ice, unsigned char reg)
+{
+	unsigned char byte;
+	struct ews_spec *spec = ice->spec;
+
+	snd_i2c_lock(ice->i2c);
+	byte = reg;
+	if (snd_i2c_sendbytes(spec->i2cdevs[EWS_I2C_6FIRE], &byte, 1) != 1) {
+		snd_i2c_unlock(ice->i2c);
+		dev_err(ice->card->dev, "cannot send pca\n");
+		return -EIO;
+	}
+
+	byte = 0;
+	if (snd_i2c_readbytes(spec->i2cdevs[EWS_I2C_6FIRE], &byte, 1) != 1) {
+		snd_i2c_unlock(ice->i2c);
+		dev_err(ice->card->dev, "cannot read pca\n");
+		return -EIO;
+	}
+	snd_i2c_unlock(ice->i2c);
+	return byte;
+}
+
+static int snd_ice1712_6fire_write_pca(struct snd_ice1712 *ice, unsigned char reg, unsigned char data)
+{
+	unsigned char bytes[2];
+	struct ews_spec *spec = ice->spec;
+
+	snd_i2c_lock(ice->i2c);
+	bytes[0] = reg;
+	bytes[1] = data;
+	if (snd_i2c_sendbytes(spec->i2cdevs[EWS_I2C_6FIRE], bytes, 2) != 2) {
+		snd_i2c_unlock(ice->i2c);
+		return -EIO;
+	}
+	snd_i2c_unlock(ice->i2c);
+	return 0;
+}
+
+#define snd_ice1712_6fire_control_info		snd_ctl_boolean_mono_info
+
+static int snd_ice1712_6fire_control_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+	int shift = kcontrol->private_value & 0xff;
+	int invert = (kcontrol->private_value >> 8) & 1;
+	int data;
+	
+	data = snd_ice1712_6fire_read_pca(ice, PCF9554_REG_OUTPUT);
+	if (data < 0)
+		return data;
+	data = (data >> shift) & 1;
+	if (invert)
+		data ^= 1;
+	ucontrol->value.integer.value[0] = data;
+	return 0;
+}
+
+static int snd_ice1712_6fire_control_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+	int shift = kcontrol->private_value & 0xff;
+	int invert = (kcontrol->private_value >> 8) & 1;
+	int data, ndata;
+	
+	data = snd_ice1712_6fire_read_pca(ice, PCF9554_REG_OUTPUT);
+	if (data < 0)
+		return data;
+	ndata = data & ~(1 << shift);
+	if (ucontrol->value.integer.value[0])
+		ndata |= (1 << shift);
+	if (invert)
+		ndata ^= (1 << shift);
+	if (data != ndata) {
+		snd_ice1712_6fire_write_pca(ice, PCF9554_REG_OUTPUT, (unsigned char)ndata);
+		return 1;
+	}
+	return 0;
+}
+
+static int snd_ice1712_6fire_select_input_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
+{
+	static const char * const texts[4] = {
+		"Internal", "Front Input", "Rear Input", "Wave Table"
+	};
+	return snd_ctl_enum_info(uinfo, 1, 4, texts);
+}
+     
+static int snd_ice1712_6fire_select_input_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+	int data;
+	
+	data = snd_ice1712_6fire_read_pca(ice, PCF9554_REG_OUTPUT);
+	if (data < 0)
+		return data;
+	ucontrol->value.integer.value[0] = data & 3;
+	return 0;
+}
+
+static int snd_ice1712_6fire_select_input_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+	int data, ndata;
+	
+	data = snd_ice1712_6fire_read_pca(ice, PCF9554_REG_OUTPUT);
+	if (data < 0)
+		return data;
+	ndata = data & ~3;
+	ndata |= (ucontrol->value.integer.value[0] & 3);
+	if (data != ndata) {
+		snd_ice1712_6fire_write_pca(ice, PCF9554_REG_OUTPUT, (unsigned char)ndata);
+		return 1;
+	}
+	return 0;
+}
+
+
+#define DMX6FIRE_CONTROL(xname, xshift, xinvert) \
+{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
+  .name = xname,\
+  .info = snd_ice1712_6fire_control_info,\
+  .get = snd_ice1712_6fire_control_get,\
+  .put = snd_ice1712_6fire_control_put,\
+  .private_value = xshift | (xinvert << 8),\
+}
+
+static const struct snd_kcontrol_new snd_ice1712_6fire_controls[] = {
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "Analog Input Select",
+		.info = snd_ice1712_6fire_select_input_info,
+		.get = snd_ice1712_6fire_select_input_get,
+		.put = snd_ice1712_6fire_select_input_put,
+	},
+	DMX6FIRE_CONTROL("Front Digital Input Switch", 2, 1),
+	// DMX6FIRE_CONTROL("Master Clock Select", 3, 0),
+	DMX6FIRE_CONTROL("Optical Digital Input Switch", 4, 0),
+	DMX6FIRE_CONTROL("Phono Analog Input Switch", 5, 0),
+	DMX6FIRE_CONTROL("Breakbox LED", 6, 0),
+};
+
+
+static int snd_ice1712_ews_add_controls(struct snd_ice1712 *ice)
+{
+	unsigned int idx;
+	int err;
+	
+	/* all terratec cards have spdif, but cs8427 module builds it's own controls */
+	if (ice->cs8427 == NULL) {
+		err = snd_ice1712_spdif_build_controls(ice);
+		if (err < 0)
+			return err;
+	}
+
+	/* ak4524 controls */
+	switch (ice->eeprom.subvendor) {
+	case ICE1712_SUBDEVICE_EWX2496:
+	case ICE1712_SUBDEVICE_EWS88MT:
+	case ICE1712_SUBDEVICE_EWS88MT_NEW:
+	case ICE1712_SUBDEVICE_PHASE88:
+	case ICE1712_SUBDEVICE_TS88:
+	case ICE1712_SUBDEVICE_DMX6FIRE:
+		err = snd_ice1712_akm4xxx_build_controls(ice);
+		if (err < 0)
+			return err;
+		break;
+	}
+
+	/* card specific controls */
+	switch (ice->eeprom.subvendor) {
+	case ICE1712_SUBDEVICE_EWX2496:
+		for (idx = 0; idx < ARRAY_SIZE(snd_ice1712_ewx2496_controls); idx++) {
+			err = snd_ctl_add(ice->card, snd_ctl_new1(&snd_ice1712_ewx2496_controls[idx], ice));
+			if (err < 0)
+				return err;
+		}
+		break;
+	case ICE1712_SUBDEVICE_EWS88MT:
+	case ICE1712_SUBDEVICE_EWS88MT_NEW:
+	case ICE1712_SUBDEVICE_PHASE88:
+	case ICE1712_SUBDEVICE_TS88:
+		err = snd_ctl_add(ice->card, snd_ctl_new1(&snd_ice1712_ews88mt_input_sense, ice));
+		if (err < 0)
+			return err;
+		err = snd_ctl_add(ice->card, snd_ctl_new1(&snd_ice1712_ews88mt_output_sense, ice));
+		if (err < 0)
+			return err;
+		break;
+	case ICE1712_SUBDEVICE_EWS88D:
+		for (idx = 0; idx < ARRAY_SIZE(snd_ice1712_ews88d_controls); idx++) {
+			err = snd_ctl_add(ice->card, snd_ctl_new1(&snd_ice1712_ews88d_controls[idx], ice));
+			if (err < 0)
+				return err;
+		}
+		break;
+	case ICE1712_SUBDEVICE_DMX6FIRE:
+		for (idx = 0; idx < ARRAY_SIZE(snd_ice1712_6fire_controls); idx++) {
+			err = snd_ctl_add(ice->card, snd_ctl_new1(&snd_ice1712_6fire_controls[idx], ice));
+			if (err < 0)
+				return err;
+		}
+		break;
+	}
+	return 0;
+}
+
+
+/* entry point */
+struct snd_ice1712_card_info snd_ice1712_ews_cards[] = {
+	{
+		.subvendor = ICE1712_SUBDEVICE_EWX2496,
+		.name = "TerraTec EWX24/96",
+		.model = "ewx2496",
+		.chip_init = snd_ice1712_ews_init,
+		.build_controls = snd_ice1712_ews_add_controls,
+	},
+	{
+		.subvendor = ICE1712_SUBDEVICE_EWS88MT,
+		.name = "TerraTec EWS88MT",
+		.model = "ews88mt",
+		.chip_init = snd_ice1712_ews_init,
+		.build_controls = snd_ice1712_ews_add_controls,
+	},
+	{
+		.subvendor = ICE1712_SUBDEVICE_EWS88MT_NEW,
+		.name = "TerraTec EWS88MT",
+		.model = "ews88mt_new",
+		.chip_init = snd_ice1712_ews_init,
+		.build_controls = snd_ice1712_ews_add_controls,
+	},
+	{
+		.subvendor = ICE1712_SUBDEVICE_PHASE88,
+		.name = "TerraTec Phase88",
+		.model = "phase88",
+		.chip_init = snd_ice1712_ews_init,
+		.build_controls = snd_ice1712_ews_add_controls,
+	},
+	{
+		.subvendor = ICE1712_SUBDEVICE_TS88,
+		.name = "terrasoniq TS88",
+		.model = "phase88",
+		.chip_init = snd_ice1712_ews_init,
+		.build_controls = snd_ice1712_ews_add_controls,
+	},
+	{
+		.subvendor = ICE1712_SUBDEVICE_EWS88D,
+		.name = "TerraTec EWS88D",
+		.model = "ews88d",
+		.chip_init = snd_ice1712_ews_init,
+		.build_controls = snd_ice1712_ews_add_controls,
+	},
+	{
+		.subvendor = ICE1712_SUBDEVICE_DMX6FIRE,
+		.name = "TerraTec DMX6Fire",
+		.model = "dmx6fire",
+		.chip_init = snd_ice1712_ews_init,
+		.build_controls = snd_ice1712_ews_add_controls,
+		.mpu401_1_name = "MIDI-Front DMX6fire",
+		.mpu401_2_name = "Wavetable DMX6fire",
+		.mpu401_2_info_flags = MPU401_INFO_OUTPUT,
+	},
+	{ } /* terminator */
+};