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/*
* Purpose: Low level routines for VIA's Envy24HT reference board (AKM codec)
*
* Notice:
*
* This driver is currently disabled because no known real world device
* is based on this design. To enable this driver againa just rename it to
* envy24ht_via.c and edit the models[] table in envy24ht.c.
*/
/*
*
* This file is part of Open Sound System.
*
* Copyright (C) 4Front Technologies 1996-2008.
*
* This this source file is released under GPL v2 license (no other versions).
* See the COPYING file included in the main directory of this source
* distribution for the license terms and conditions.
*
*/
#include "oss_envy24ht_cfg.h"
#include "spdif.h"
#include "envy24ht.h"
#define AKM_ADDRESS 0x10
static unsigned char
i2c_read (envy24ht_devc * devc, unsigned char addr, unsigned char pos)
{
int i;
unsigned char data;
oss_native_word flags;
MUTEX_ENTER_IRQDISABLE (devc->low_mutex, flags);
OUTB (devc->osdev, pos, devc->ccs_base + 0x11); /* Offset */
OUTB (devc->osdev, addr << 1, devc->ccs_base + 0x10); /* Read address */
for (i = 0; i < 2000; i++)
{
unsigned char status = INB (devc->osdev, devc->ccs_base + 0x13);
if (!(status & 1))
break;
}
oss_udelay (1);
data = INB (devc->osdev, devc->ccs_base + 0x12);
MUTEX_EXIT_IRQRESTORE (devc->low_mutex, flags);
return data;
}
static void
i2c_write (envy24ht_devc * devc, unsigned char addr, unsigned char pos,
unsigned char data)
{
int i;
oss_native_word flags;
MUTEX_ENTER_IRQDISABLE (devc->low_mutex, flags);
OUTB (devc->osdev, pos, devc->ccs_base + 0x11); /* Offset */
OUTB (devc->osdev, data, devc->ccs_base + 0x12); /* Data */
OUTB (devc->osdev, (addr << 1) | 1, devc->ccs_base + 0x10); /* Write address */
for (i = 0; i < 2000; i++)
{
unsigned char status = INB (devc->osdev, devc->ccs_base + 0x13);
if (!(status & 1))
break;
}
MUTEX_EXIT_IRQRESTORE (devc->low_mutex, flags);
}
static void
viaref_card_init (envy24ht_devc * devc)
{
int addr = AKM_ADDRESS;
if (devc->codec_type != CODEC_I2S)
return;
OUTW (devc->osdev, 0x000f, devc->ccs_base + 0x14); /* GPIO */
oss_udelay (1000);
i2c_write (devc, addr, 0, 0x00);
i2c_write (devc, addr, 0, 0x0f);
i2c_write (devc, addr, 1, 0x00);
i2c_write (devc, addr, 2, 0x01);
i2c_write (devc, addr, 5, 0x07);
i2c_write (devc, addr, 6, 0x00);
i2c_write (devc, addr, 7, 0x00);
i2c_write (devc, addr, 6, 0x00);
i2c_write (devc, addr, 7, 0x00);
i2c_write (devc, addr, 8, 0x00);
i2c_write (devc, addr, 9, 0x00);
i2c_write (devc, addr, 10, 0x00);
i2c_write (devc, addr, 11, 0x00);
devc->recsrc = 0;
#if 0
cmn_err(CE_CONT, "Regs=");
for (i = 0; i < 0x18; i++)
{
cmn_err(CE_CONT, "%02x ", i2c_read (devc, addr, i));
}
cmn_err(CE_CONT, "\n");
#endif
}
static int
viaref_set_akm (int dev, int ctrl, unsigned int cmd, int value)
{
envy24ht_devc *devc = mixer_devs[dev]->hw_devc;
int left, right, val;
unsigned char tmp, tmp2, old, old2;
if (cmd == SNDCTL_MIX_READ)
{
switch (ctrl)
{
/* Output gain controls */
case 0:
case 1:
case 2:
case 3:
return devc->gains[ctrl];
case 10: /* Loopback enable */
return !!(i2c_read (devc, AKM_ADDRESS, 0x01) & 0x30);
case 11: /* codec.recsrc (ANALOG OPTICAL COAX CD AUX) */
return devc->recsrc;
break;
default:
return OSS_EINVAL;
}
}
if (cmd == SNDCTL_MIX_WRITE)
{
oss_native_word flags;
left = value & 0xff;
right = (value >> 8) & 0xff;
val = left | (right << 8);
switch (ctrl)
{
case 0:
left = 0xff - left;
right = 0xff - right;
i2c_write (devc, AKM_ADDRESS, 0x06, left);
i2c_write (devc, AKM_ADDRESS, 0x07, right);
return devc->gains[ctrl] = val;
case 1:
left = 0xff - left;
right = 0xff - right;
i2c_write (devc, AKM_ADDRESS, 0x08, left);
i2c_write (devc, AKM_ADDRESS, 0x09, right);
return devc->gains[ctrl] = val;
case 2:
val = left | (left << 8);
left = 0xff - left;
i2c_write (devc, AKM_ADDRESS, 0x0a, left);
return devc->gains[ctrl] = val;
case 3:
val = left | (left << 8);
left = 0xff - left;
i2c_write (devc, AKM_ADDRESS, 0x0b, left);
return devc->gains[ctrl] = val;
case 10: /* Loopback enable */
MUTEX_ENTER_IRQDISABLE (devc->mutex, flags);
old = tmp = i2c_read (devc, AKM_ADDRESS, 0x01);
value = !!value;
if (value)
tmp |= 0x10;
else
tmp &= ~0x30;
if (tmp != old)
{
i2c_write (devc, AKM_ADDRESS, 0x01, tmp);
}
MUTEX_EXIT_IRQRESTORE (devc->mutex, flags);
return value;
case 11: /* codec.recsrc (ANALOG OPTICAL COAX CD AUX) */
if (value < 0 || value > 4)
return devc->recsrc;
MUTEX_ENTER_IRQDISABLE (devc->mutex, flags);
old = tmp = i2c_read (devc, AKM_ADDRESS, 0x01);
old2 = tmp2 = i2c_read (devc, AKM_ADDRESS, 0x02);
tmp &= ~0x0c;
tmp2 &= ~0x03;
switch (value)
{
case 0: /* Analog */
tmp2 |= 0x01;
break;
case 1: /* Optical (RX2) */
tmp |= 0x04;
tmp2 |= 0x00;
break;
case 2: /* Coax (RX1) */
tmp |= 0x00;
tmp2 |= 0x00;
break;
case 3: /* CD digital input (RX3) */
tmp |= 0x08;
tmp2 |= 0x00;
break;
case 4: /* Unused digital input (RX4) */
tmp |= 0x08;
tmp2 |= 0x00;
break;
}
if (tmp != old)
i2c_write (devc, AKM_ADDRESS, 0x01, tmp);
if (tmp2 != old2)
i2c_write (devc, AKM_ADDRESS, 0x02, tmp2);
devc->recsrc = value;
MUTEX_EXIT_IRQRESTORE (devc->mutex, flags);
return devc->recsrc;
break;
}
return OSS_EIO;
}
return OSS_EIO;
}
static int
viaref_mixer_init (envy24ht_devc * devc, int dev, int group)
{
int i, err;
if (devc->codec_type != CODEC_I2S)
return 0;
for (i = 0; i < 4; i++)
devc->gains[i] = 0xffff;
if ((group = mixer_ext_create_group (dev, 0, "ENVY24HT_GAIN")) < 0)
return group;
if ((err = mixer_ext_create_control (dev, group,
0, viaref_set_akm,
MIXT_STEREOSLIDER,
"GAIN_FRONT", 255,
MIXF_READABLE | MIXF_WRITEABLE)) < 0)
return err;
if ((err = mixer_ext_create_control (dev, group,
1, viaref_set_akm,
MIXT_STEREOSLIDER,
"GAIN_REAR", 255,
MIXF_READABLE | MIXF_WRITEABLE)) < 0)
return err;
if ((err = mixer_ext_create_control (dev, group,
2, viaref_set_akm,
MIXT_MONOSLIDER,
"GAIN_CENTER", 255,
MIXF_READABLE | MIXF_WRITEABLE)) < 0)
return err;
if ((err = mixer_ext_create_control (dev, group,
3, viaref_set_akm,
MIXT_MONOSLIDER,
"GAIN_LFE", 255,
MIXF_READABLE | MIXF_WRITEABLE)) < 0)
return err;
if ((group = mixer_ext_create_group (dev, 0, "ENVY24HT_CODEC")) < 0)
return group;
if ((err = mixer_ext_create_control (dev, group,
11, viaref_set_akm,
MIXT_ENUM,
"CODEC_RECSRC", 5,
MIXF_READABLE | MIXF_WRITEABLE)) < 0)
return err;
if ((err = mixer_ext_create_control (dev, group,
10, viaref_set_akm,
MIXT_ONOFF,
"CODEC_LOOPBACK", 2,
MIXF_READABLE | MIXF_WRITEABLE)) < 0)
return err;
return 0;
}
#if 0
static int
viaref_private1 (envy24ht_devc * devc, int value)
{
i2c_write (devc, AKM_ADDRESS, (value >> 8) & 0xff, value & 0xff);
return 0;
}
#endif
envy24ht_auxdrv_t envy24ht_viaref_auxdrv = {
viaref_card_init,
viaref_mixer_init
};
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