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/*
* ALSA driver for ICEnsemble VT1724 (Envy24HT)
*
* Lowlevel functions for ESI Juli@ cards
*
* Copyright (c) 2004 Jaroslav Kysela <perex@perex.cz>
*
* 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 "ice1712.h"
#include "envy24ht.h"
#include "juli.h"
struct juli_spec {
struct ak4114 *ak4114;
unsigned int analog: 1;
};
/*
* chip addresses on I2C bus
*/
#define AK4114_ADDR 0x20 /* S/PDIF receiver */
#define AK4358_ADDR 0x22 /* DAC */
/*
* GPIO pins
*/
#define GPIO_FREQ_MASK (3<<0)
#define GPIO_FREQ_32KHZ (0<<0)
#define GPIO_FREQ_44KHZ (1<<0)
#define GPIO_FREQ_48KHZ (2<<0)
#define GPIO_MULTI_MASK (3<<2)
#define GPIO_MULTI_4X (0<<2)
#define GPIO_MULTI_2X (1<<2)
#define GPIO_MULTI_1X (2<<2) /* also external */
#define GPIO_MULTI_HALF (3<<2)
#define GPIO_INTERNAL_CLOCK (1<<4)
#define GPIO_ANALOG_PRESENT (1<<5) /* RO only: 0 = present */
#define GPIO_RXMCLK_SEL (1<<7) /* must be 0 */
#define GPIO_AK5385A_CKS0 (1<<8)
#define GPIO_AK5385A_DFS0 (1<<9) /* swapped with DFS1 according doc? */
#define GPIO_AK5385A_DFS1 (1<<10)
#define GPIO_DIGOUT_MONITOR (1<<11) /* 1 = active */
#define GPIO_DIGIN_MONITOR (1<<12) /* 1 = active */
#define GPIO_ANAIN_MONITOR (1<<13) /* 1 = active */
#define GPIO_AK5385A_MCLK (1<<14) /* must be 0 */
#define GPIO_MUTE_CONTROL (1<<15) /* 0 = off, 1 = on */
static void juli_ak4114_write(void *private_data, unsigned char reg, unsigned char val)
{
snd_vt1724_write_i2c((struct snd_ice1712 *)private_data, AK4114_ADDR, reg, val);
}
static unsigned char juli_ak4114_read(void *private_data, unsigned char reg)
{
return snd_vt1724_read_i2c((struct snd_ice1712 *)private_data, AK4114_ADDR, reg);
}
static void juli_spdif_in_open(struct snd_ice1712 *ice,
struct snd_pcm_substream *substream)
{
struct juli_spec *spec = ice->spec;
struct snd_pcm_runtime *runtime = substream->runtime;
int rate;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
return;
rate = snd_ak4114_external_rate(spec->ak4114);
if (rate >= runtime->hw.rate_min && rate <= runtime->hw.rate_max) {
runtime->hw.rate_min = rate;
runtime->hw.rate_max = rate;
}
}
/*
* AK4358 section
*/
static void juli_akm_lock(struct snd_akm4xxx *ak, int chip)
{
}
static void juli_akm_unlock(struct snd_akm4xxx *ak, int chip)
{
}
static void juli_akm_write(struct snd_akm4xxx *ak, int chip,
unsigned char addr, unsigned char data)
{
struct snd_ice1712 *ice = ak->private_data[0];
snd_assert(chip == 0, return);
snd_vt1724_write_i2c(ice, AK4358_ADDR, addr, data);
}
/*
* change the rate of envy24HT, AK4358
*/
static void juli_akm_set_rate_val(struct snd_akm4xxx *ak, unsigned int rate)
{
unsigned char old, tmp, dfs;
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;
tmp = snd_akm4xxx_get(ak, 0, 2);
old = (tmp >> 4) & 0x03;
if (old == dfs)
return;
/* reset DFS */
snd_akm4xxx_reset(ak, 1);
tmp = snd_akm4xxx_get(ak, 0, 2);
tmp &= ~(0x03 << 4);
tmp |= dfs << 4;
snd_akm4xxx_set(ak, 0, 2, tmp);
snd_akm4xxx_reset(ak, 0);
}
static struct snd_akm4xxx akm_juli_dac __devinitdata = {
.type = SND_AK4358,
.num_dacs = 2,
.ops = {
.lock = juli_akm_lock,
.unlock = juli_akm_unlock,
.write = juli_akm_write,
.set_rate_val = juli_akm_set_rate_val
}
};
static int __devinit juli_add_controls(struct snd_ice1712 *ice)
{
struct juli_spec *spec = ice->spec;
int err;
err = snd_ice1712_akm4xxx_build_controls(ice);
if (err < 0)
return err;
/* only capture SPDIF over AK4114 */
err = snd_ak4114_build(spec->ak4114, NULL,
ice->pcm_pro->streams[SNDRV_PCM_STREAM_CAPTURE].substream);
if (err < 0)
return err;
return 0;
}
/*
* initialize the chip
*/
static int __devinit juli_init(struct snd_ice1712 *ice)
{
static const unsigned char ak4114_init_vals[] = {
/* AK4117_REG_PWRDN */ AK4114_RST | AK4114_PWN | AK4114_OCKS0 | AK4114_OCKS1,
/* AK4114_REQ_FORMAT */ AK4114_DIF_I24I2S,
/* AK4114_REG_IO0 */ AK4114_TX1E,
/* AK4114_REG_IO1 */ AK4114_EFH_1024 | AK4114_DIT | AK4114_IPS(1),
/* AK4114_REG_INT0_MASK */ 0,
/* AK4114_REG_INT1_MASK */ 0
};
static const unsigned char ak4114_init_txcsb[] = {
0x41, 0x02, 0x2c, 0x00, 0x00
};
int err;
struct juli_spec *spec;
struct snd_akm4xxx *ak;
spec = kzalloc(sizeof(*spec), GFP_KERNEL);
if (!spec)
return -ENOMEM;
ice->spec = spec;
err = snd_ak4114_create(ice->card,
juli_ak4114_read,
juli_ak4114_write,
ak4114_init_vals, ak4114_init_txcsb,
ice, &spec->ak4114);
if (err < 0)
return err;
#if 0
/* it seems that the analog doughter board detection does not work
reliably, so force the analog flag; it should be very rare
to use Juli@ without the analog doughter board */
spec->analog = (ice->gpio.get_data(ice) & GPIO_ANALOG_PRESENT) ? 0 : 1;
#else
spec->analog = 1;
#endif
if (spec->analog) {
printk(KERN_INFO "juli@: analog I/O detected\n");
ice->num_total_dacs = 2;
ice->num_total_adcs = 2;
ak = ice->akm = kzalloc(sizeof(struct snd_akm4xxx), GFP_KERNEL);
if (! ak)
return -ENOMEM;
ice->akm_codecs = 1;
if ((err = snd_ice1712_akm4xxx_init(ak, &akm_juli_dac, NULL, ice)) < 0)
return err;
}
ice->spdif.ops.open = juli_spdif_in_open;
return 0;
}
/*
* Juli@ boards don't provide the EEPROM data except for the vendor IDs.
* hence the driver needs to sets up it properly.
*/
static unsigned char juli_eeprom[] __devinitdata = {
[ICE_EEP2_SYSCONF] = 0x20, /* clock 512, mpu401, 1xADC, 1xDACs */
[ICE_EEP2_ACLINK] = 0x80, /* I2S */
[ICE_EEP2_I2S] = 0xf8, /* vol, 96k, 24bit, 192k */
[ICE_EEP2_SPDIF] = 0xc3, /* out-en, out-int, spdif-in */
[ICE_EEP2_GPIO_DIR] = 0x9f,
[ICE_EEP2_GPIO_DIR1] = 0xff,
[ICE_EEP2_GPIO_DIR2] = 0x7f,
[ICE_EEP2_GPIO_MASK] = 0x9f,
[ICE_EEP2_GPIO_MASK1] = 0xff,
[ICE_EEP2_GPIO_MASK2] = 0x7f,
[ICE_EEP2_GPIO_STATE] = 0x16, /* internal clock, multiple 1x, 48kHz */
[ICE_EEP2_GPIO_STATE1] = 0x80, /* mute */
[ICE_EEP2_GPIO_STATE2] = 0x00,
};
/* entry point */
struct snd_ice1712_card_info snd_vt1724_juli_cards[] __devinitdata = {
{
.subvendor = VT1724_SUBDEVICE_JULI,
.name = "ESI Juli@",
.model = "juli",
.chip_init = juli_init,
.build_controls = juli_add_controls,
.eeprom_size = sizeof(juli_eeprom),
.eeprom_data = juli_eeprom,
},
{ } /* terminator */
};
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