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/*
* ALSA driver for ICEnsemble ICE1724 (Envy24)
*
* Lowlevel functions for Terratec PHASE 22
*
* Copyright (c) 2005 Misha Zhilin <misha@epiphan.com>
*
* 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
*
*/
/* PHASE 22 overview:
* Audio controller: VIA Envy24HT-S (slightly trimmed down version of Envy24HT)
* Analog chip: AK4524 (partially via Philip's 74HCT125)
* Digital receiver: CS8414-CS (not supported in this release)
*
* Envy connects to AK4524
* - CS directly from GPIO 10
* - CCLK via 74HCT125's gate #4 from GPIO 4
* - CDTI via 74HCT125's gate #2 from GPIO 5
* CDTI may be completely blocked by 74HCT125's gate #1 controlled by GPIO 3
*/
#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 "phase.h"
static akm4xxx_t akm_phase22 __devinitdata = {
.type = SND_AK4524,
.num_dacs = 2,
.num_adcs = 2,
};
static struct snd_ak4xxx_private akm_phase22_priv __devinitdata = {
.caddr = 2,
.cif = 1,
.data_mask = 1 << 4,
.clk_mask = 1 << 5,
.cs_mask = 1 << 10,
.cs_addr = 1 << 10,
.cs_none = 0,
.add_flags = 1 << 3,
.mask_flags = 0,
};
static int __devinit phase22_init(ice1712_t *ice)
{
akm4xxx_t *ak;
int err;
// Configure DAC/ADC description for generic part of ice1724
switch (ice->eeprom.subvendor) {
case VT1724_SUBDEVICE_PHASE22:
ice->num_total_dacs = 2;
ice->num_total_adcs = 2;
ice->vt1720 = 1; // Envy24HT-S have 16 bit wide GPIO
break;
default:
snd_BUG();
return -EINVAL;
}
// Initialize analog chips
ak = ice->akm = kcalloc(1, sizeof(akm4xxx_t), GFP_KERNEL);
if (! ak)
return -ENOMEM;
ice->akm_codecs = 1;
switch (ice->eeprom.subvendor) {
case VT1724_SUBDEVICE_PHASE22:
if ((err = snd_ice1712_akm4xxx_init(ak, &akm_phase22, &akm_phase22_priv, ice)) < 0)
return err;
break;
}
return 0;
}
static int __devinit phase22_add_controls(ice1712_t *ice)
{
int err = 0;
switch (ice->eeprom.subvendor) {
case VT1724_SUBDEVICE_PHASE22:
err = snd_ice1712_akm4xxx_build_controls(ice);
if (err < 0)
return err;
}
return 0;
}
static unsigned char phase22_eeprom[] __devinitdata = {
0x00, /* SYSCONF: 1xADC, 1xDACs */
0x80, /* ACLINK: I2S */
0xf8, /* I2S: vol, 96k, 24bit*/
0xc3, /* SPDIF: out-en, out-int, spdif-in */
0xFF, /* GPIO_DIR */
0xFF, /* GPIO_DIR1 */
0xFF, /* GPIO_DIR2 */
0x00, /* GPIO_MASK */
0x00, /* GPIO_MASK1 */
0x00, /* GPIO_MASK2 */
0x00, /* GPIO_STATE: */
0x00, /* GPIO_STATE1: */
0x00, /* GPIO_STATE2 */
};
struct snd_ice1712_card_info snd_vt1724_phase_cards[] __devinitdata = {
{
.subvendor = VT1724_SUBDEVICE_PHASE22,
.name = "Terratec PHASE 22",
.model = "phase22",
.chip_init = phase22_init,
.build_controls = phase22_add_controls,
.eeprom_size = sizeof(phase22_eeprom),
.eeprom_data = phase22_eeprom,
},
{ } /* terminator */
};
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