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root/sound/pci/ice1712/ews.c

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DEFINITIONS

This source file includes following definitions.
  1. ewx_i2c_setlines
  2. ewx_i2c_getclock
  3. ewx_i2c_getdata
  4. ewx_i2c_start
  5. ewx_i2c_stop
  6. ewx_i2c_direction
  7. snd_ice1712_ews88mt_chip_select
  8. ews88mt_ak4524_lock
  9. ews88mt_ak4524_unlock
  10. ewx2496_ak4524_lock
  11. dmx6fire_ak4524_lock
  12. snd_ice1712_ews_cs8404_spdif_write
  13. ews88_spdif_default_get
  14. ews88_spdif_default_put
  15. ews88_spdif_stream_get
  16. ews88_spdif_stream_put
  17. ews88_open_spdif
  18. ews88_setup_spdif
  19. snd_ice1712_ews_init
  20. snd_ice1712_ewx_io_sense_info
  21. snd_ice1712_ewx_io_sense_get
  22. snd_ice1712_ewx_io_sense_put
  23. snd_ice1712_ews88mt_output_sense_get
  24. snd_ice1712_ews88mt_output_sense_put
  25. snd_ice1712_ews88mt_input_sense_get
  26. snd_ice1712_ews88mt_input_sense_put
  27. snd_ice1712_ews88d_control_get
  28. snd_ice1712_ews88d_control_put
  29. snd_ice1712_6fire_read_pca
  30. snd_ice1712_6fire_write_pca
  31. snd_ice1712_6fire_control_get
  32. snd_ice1712_6fire_control_put
  33. snd_ice1712_6fire_select_input_info
  34. snd_ice1712_6fire_select_input_get
  35. snd_ice1712_6fire_select_input_put
  36. snd_ice1712_ews_add_controls

/*
 *   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>
 *
 *   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/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);
        snd_printk(KERN_ERR "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)
                snd_printk(KERN_ERR "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 struct snd_akm4xxx akm_ews88mt __devinitdata = {
        .num_adcs = 8,
        .num_dacs = 8,
        .type = SND_AK4524,
        .ops = {
                .lock = ews88mt_ak4524_lock,
                .unlock = ews88mt_ak4524_unlock
        }
};

static struct snd_ak4xxx_private akm_ews88mt_priv __devinitdata = {
        .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 struct snd_akm4xxx akm_ewx2496 __devinitdata = {
        .num_adcs = 2,
        .num_dacs = 2,
        .type = SND_AK4524,
        .ops = {
                .lock = ewx2496_ak4524_lock
        }
};

static struct snd_ak4xxx_private akm_ewx2496_priv __devinitdata = {
        .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 struct snd_akm4xxx akm_6fire __devinitdata = {
        .num_adcs = 6,
        .num_dacs = 6,
        .type = SND_AK4524,
        .ops = {
                .lock = dmx6fire_ak4524_lock
        }
};

static struct snd_ak4xxx_private akm_6fire_priv __devinitdata = {
        .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 __devinit 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 */
        if ((err = snd_i2c_bus_create(ice->card, "ICE1712 GPIO 1", NULL, &ice->i2c)) < 0) {
                snd_printk(KERN_ERR "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) {
                        snd_printk(KERN_ERR "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 */
                if ((err = snd_ice1712_ews88mt_chip_select(ice, 0x0f)) < 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:
                if ((err = snd_ice1712_init_cs8427(ice, CS8427_BASE_ADDR)) < 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:
                if ((err = snd_ice1712_init_cs8427(ice, ICE1712_6FIRE_CS8427_ADDR)) < 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 char *texts[2] = {
                "+4dBu", "-10dBV",
        };
        uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
        uinfo->count = 1;
        uinfo->value.enumerated.items = 2;
        if (uinfo->value.enumerated.item >= 2)
                uinfo->value.enumerated.item = 1;
        strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
        return 0;
}

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 struct snd_kcontrol_new snd_ice1712_ewx2496_controls[] __devinitdata = {
        {
                .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 struct snd_kcontrol_new snd_ice1712_ews88mt_input_sense __devinitdata = {
        .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 struct snd_kcontrol_new snd_ice1712_ews88mt_output_sense __devinitdata = {
        .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 struct snd_kcontrol_new snd_ice1712_ews88d_controls[] __devinitdata = {
        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;
        snd_i2c_sendbytes(spec->i2cdevs[EWS_I2C_6FIRE], &byte, 1);
        byte = 0;
        if (snd_i2c_readbytes(spec->i2cdevs[EWS_I2C_6FIRE], &byte, 1) != 1) {
                snd_i2c_unlock(ice->i2c);
                printk(KERN_ERR "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;
        
        if ((data = snd_ice1712_6fire_read_pca(ice, PCF9554_REG_OUTPUT)) < 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;
        
        if ((data = snd_ice1712_6fire_read_pca(ice, PCF9554_REG_OUTPUT)) < 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 char *texts[4] = {
                "Internal", "Front Input", "Rear Input", "Wave Table"
        };
        uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
        uinfo->count = 1;
        uinfo->value.enumerated.items = 4;
        if (uinfo->value.enumerated.item >= 4)
                uinfo->value.enumerated.item = 1;
        strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
        return 0;
}
     
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;
        
        if ((data = snd_ice1712_6fire_read_pca(ice, PCF9554_REG_OUTPUT)) < 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;
        
        if ((data = snd_ice1712_6fire_read_pca(ice, PCF9554_REG_OUTPUT)) < 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 struct snd_kcontrol_new snd_ice1712_6fire_controls[] __devinitdata = {
        {
                .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 __devinit 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[] __devinitdata = {
        {
                .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 */
};

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