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/*
* ALSA driver for ICEnsemble ICE1712 (Envy24)
*
* Lowlevel functions for M-Audio Revolution 7.1
*
* Copyright (c) 2003 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 <sound/driver.h>
#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 "ice1712.h"
#include "envy24ht.h"
#include "revo.h"
static void revo_i2s_mclk_changed(struct snd_ice1712 *ice)
{
/* assert PRST# to converters; 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));
}
/*
* change the rate of envy24HT, AK4355 and AK4381
*/
static void revo_set_rate_val(struct snd_akm4xxx *ak, unsigned int rate)
{
unsigned char old, tmp, dfs;
int reg, shift;
if (rate == 0) /* no hint - S/PDIF input is master, simply return */
return;
/* adjust DFS on codecs */
if (rate > 96000)
dfs = 2;
else if (rate > 48000)
dfs = 1;
else
dfs = 0;
if (ak->type == SND_AK4355) {
reg = 2;
shift = 4;
} else {
reg = 1;
shift = 3;
}
tmp = snd_akm4xxx_get(ak, 0, reg);
old = (tmp >> shift) & 0x03;
if (old == dfs)
return;
/* reset DFS */
snd_akm4xxx_reset(ak, 1);
tmp = snd_akm4xxx_get(ak, 0, reg);
tmp &= ~(0x03 << shift);
tmp |= dfs << shift;
// snd_akm4xxx_write(ak, 0, reg, tmp);
snd_akm4xxx_set(ak, 0, reg, tmp); /* the value is written in reset(0) */
snd_akm4xxx_reset(ak, 0);
}
/*
* initialize the chips on M-Audio Revolution cards
*/
static struct snd_akm4xxx akm_revo_front __devinitdata = {
.type = SND_AK4381,
.num_dacs = 2,
.ops = {
.set_rate_val = revo_set_rate_val
}
};
static struct snd_ak4xxx_private akm_revo_front_priv __devinitdata = {
.caddr = 1,
.cif = 0,
.data_mask = VT1724_REVO_CDOUT,
.clk_mask = VT1724_REVO_CCLK,
.cs_mask = VT1724_REVO_CS0 | VT1724_REVO_CS1 | VT1724_REVO_CS2,
.cs_addr = VT1724_REVO_CS0 | VT1724_REVO_CS2,
.cs_none = VT1724_REVO_CS0 | VT1724_REVO_CS1 | VT1724_REVO_CS2,
.add_flags = VT1724_REVO_CCLK, /* high at init */
.mask_flags = 0,
};
static struct snd_akm4xxx akm_revo_surround __devinitdata = {
.type = SND_AK4355,
.idx_offset = 1,
.num_dacs = 6,
.ops = {
.set_rate_val = revo_set_rate_val
}
};
static struct snd_ak4xxx_private akm_revo_surround_priv __devinitdata = {
.caddr = 3,
.cif = 0,
.data_mask = VT1724_REVO_CDOUT,
.clk_mask = VT1724_REVO_CCLK,
.cs_mask = VT1724_REVO_CS0 | VT1724_REVO_CS1 | VT1724_REVO_CS2,
.cs_addr = VT1724_REVO_CS0 | VT1724_REVO_CS1,
.cs_none = VT1724_REVO_CS0 | VT1724_REVO_CS1 | VT1724_REVO_CS2,
.add_flags = VT1724_REVO_CCLK, /* high at init */
.mask_flags = 0,
};
static int __devinit revo_init(struct snd_ice1712 *ice)
{
struct snd_akm4xxx *ak;
int err;
/* determine I2C, DACs and ADCs */
switch (ice->eeprom.subvendor) {
case VT1724_SUBDEVICE_REVOLUTION71:
ice->num_total_dacs = 8;
ice->num_total_adcs = 2;
break;
default:
snd_BUG();
return -EINVAL;
}
ice->gpio.i2s_mclk_changed = revo_i2s_mclk_changed;
/* second stage of initialization, analog parts and others */
ak = ice->akm = kcalloc(2, sizeof(struct snd_akm4xxx), GFP_KERNEL);
if (! ak)
return -ENOMEM;
ice->akm_codecs = 2;
switch (ice->eeprom.subvendor) {
case VT1724_SUBDEVICE_REVOLUTION71:
if ((err = snd_ice1712_akm4xxx_init(ak, &akm_revo_front, &akm_revo_front_priv, ice)) < 0)
return err;
if ((err = snd_ice1712_akm4xxx_init(ak + 1, &akm_revo_surround, &akm_revo_surround_priv, ice)) < 0)
return err;
/* unmute all codecs */
snd_ice1712_gpio_write_bits(ice, VT1724_REVO_MUTE, VT1724_REVO_MUTE);
break;
}
return 0;
}
static int __devinit revo_add_controls(struct snd_ice1712 *ice)
{
int err;
switch (ice->eeprom.subvendor) {
case VT1724_SUBDEVICE_REVOLUTION71:
err = snd_ice1712_akm4xxx_build_controls(ice);
if (err < 0)
return err;
}
return 0;
}
/* entry point */
struct snd_ice1712_card_info snd_vt1724_revo_cards[] __devinitdata = {
{
.subvendor = VT1724_SUBDEVICE_REVOLUTION71,
.name = "M Audio Revolution-7.1",
.model = "revo71",
.chip_init = revo_init,
.build_controls = revo_add_controls,
},
{ } /* terminator */
};
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