/*
* ALSA driver for ICEnsemble VT1724 (Envy24HT)
*
* Lowlevel functions for AudioTrak Prodigy 192 cards
* Supported IEC958 input from optional MI/ODI/O add-on card.
*
* Specifics (SW, HW):
* -------------------
* * 49.5MHz crystal
* * SPDIF-OUT on the card:
* - coax (through isolation transformer)/toslink supplied by
* 74HC04 gates - 3 in parallel
* - output switched between on-board CD drive dig-out connector
* and ice1724 SPDTX pin, using 74HC02 NOR gates, controlled
* by GPIO20 (0 = CD dig-out, 1 = SPDTX)
* * SPDTX goes straight to MI/ODI/O card's SPDIF-OUT coax
*
* * MI/ODI/O card: AK4114 based, used for iec958 input only
* - toslink input -> RX0
* - coax input -> RX1
* - 4wire protocol:
* AK4114 ICE1724
* ------------------------------
* CDTO (pin 32) -- GPIO11 pin 86
* CDTI (pin 33) -- GPIO10 pin 77
* CCLK (pin 34) -- GPIO9 pin 76
* CSN (pin 35) -- GPIO8 pin 75
* - output data Mode 7 (24bit, I2S, slave)
* - both MCKO1 and MCKO2 of ak4114 are fed to FPGA, which
* outputs master clock to SPMCLKIN of ice1724.
* Experimentally I found out that only a combination of
* OCKS0=1, OCKS1=1 (128fs, 64fs output) and ice1724 -
* VT1724_MT_I2S_MCLK_128X=0 (256fs input) yields correct
* sampling rate. That means the the FPGA doubles the
* MCK01 rate.
*
* Copyright (c) 2003 Takashi Iwai <tiwai@suse.de>
* Copyright (c) 2003 Dimitromanolakis Apostolos <apostol@cs.utoronto.ca>
* Copyright (c) 2004 Kouichi ONO <co2b@ceres.dti.ne.jp>
*
* 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 <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 "prodigy192.h"
#include "stac946x.h"
#include <sound/tlv.h>
struct prodigy192_spec {
struct ak4114 *ak4114;
/* rate change needs atomic mute/unmute of all dacs*/
struct mutex mute_mutex;
};
static inline void stac9460_put(struct snd_ice1712 *ice, int reg, unsigned char val)
{
snd_vt1724_write_i2c(ice, PRODIGY192_STAC9460_ADDR, reg, val);
}
static inline unsigned char stac9460_get(struct snd_ice1712 *ice, int reg)
{
return snd_vt1724_read_i2c(ice, PRODIGY192_STAC9460_ADDR, reg);
}
/*
* DAC mute control
*/
/*
* idx = STAC9460 volume register number, mute: 0 = mute, 1 = unmute
*/
static int stac9460_dac_mute(struct snd_ice1712 *ice, int idx,
unsigned char mute)
{
unsigned char new, old;
int change;
old = stac9460_get(ice, idx);
new = (~mute << 7 & 0x80) | (old & ~0x80);
change = (new != old);
if (change)
/*printk ("Volume register 0x%02x: 0x%02x\n", idx, new);*/
stac9460_put(ice, idx, new);
return change;
}
#define stac9460_dac_mute_info snd_ctl_boolean_mono_info
static int stac9460_dac_mute_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
unsigned char val;
int idx;
if (kcontrol->private_value)
idx = STAC946X_MASTER_VOLUME;
else
idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id) + STAC946X_LF_VOLUME;
val = stac9460_get(ice, idx);
ucontrol->value.integer.value[0] = (~val >> 7) & 0x1;
return 0;
}
static int stac9460_dac_mute_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
struct prodigy192_spec *spec = ice->spec;
int idx, change;
if (kcontrol->private_value)
idx = STAC946X_MASTER_VOLUME;
else
idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id) + STAC946X_LF_VOLUME;
/* due to possible conflicts with stac9460_set_rate_val, mutexing */
mutex_lock(&spec->mute_mutex);
/*
printk(KERN_DEBUG "Mute put: reg 0x%02x, ctrl value: 0x%02x\n", idx,
ucontrol->value.integer.value[0]);
*/
change = stac9460_dac_mute(ice, idx, ucontrol->value.integer.value[0]);
mutex_unlock(&spec->mute_mutex);
return change;
}
/*
* DAC volume attenuation mixer control
*/
static int stac9460_dac_vol_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = 1;
uinfo->value.integer.min = 0; /* mute */
uinfo->value.integer.max = 0x7f; /* 0dB */
return 0;
}
static int stac9460_dac_vol_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
int idx;
unsigned char vol;
if (kcontrol->private_value)
idx = STAC946X_MASTER_VOLUME;
else
idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id) + STAC946X_LF_VOLUME;
vol = stac9460_get(ice, idx) & 0x7f;
ucontrol->value.integer.value[0] = 0x7f - vol;
return 0;
}
static int stac9460_dac_vol_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
int idx;
unsigned char tmp, ovol, nvol;
int change;
if (kcontrol->private_value)
idx = STAC946X_MASTER_VOLUME;
else
idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id) + STAC946X_LF_VOLUME;
nvol = ucontrol->value.integer.value[0];
tmp = stac9460_get(ice, idx);
ovol = 0x7f - (tmp & 0x7f);
change = (ovol != nvol);
if (change) {
ovol = (0x7f - nvol) | (tmp & 0x80);
/*
printk(KERN_DEBUG "DAC Volume: reg 0x%02x: 0x%02x\n",
idx, ovol);
*/
stac9460_put(ice, idx, (0x7f - nvol) | (tmp & 0x80));
}
return change;
}
/*
* ADC mute control
*/
#define stac9460_adc_mute_info snd_ctl_boolean_stereo_info
static int stac9460_adc_mute_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
unsigned char val;
int i;
for (i = 0; i < 2; ++i) {
val = stac9460_get(ice, STAC946X_MIC_L_VOLUME + i);
ucontrol->value.integer.value[i] = ~val>>7 & 0x1;
}
return 0;
}
static int stac9460_adc_mute_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
unsigned char new, old;
int i, reg;
int change;
for (i = 0; i < 2; ++i) {
reg = STAC946X_MIC_L_VOLUME + i;
old = stac9460_get(ice, reg);
new = (~ucontrol->value.integer.value[i]<<7&0x80) | (old&~0x80);
change = (new != old);
if (change)
stac9460_put(ice, reg, new);
}
return change;
}
/*
* ADC gain mixer control
*/
static int stac9460_adc_vol_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = 2;
uinfo->value.integer.min = 0; /* 0dB */
uinfo->value.integer.max = 0x0f; /* 22.5dB */
return 0;
}
static int stac9460_adc_vol_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
int i, reg;
unsigned char vol;
for (i = 0; i < 2; ++i) {
reg = STAC946X_MIC_L_VOLUME + i;
vol = stac9460_get(ice, reg) & 0x0f;
ucontrol->value.integer.value[i] = 0x0f - vol;
}
return 0;
}
static int stac9460_adc_vol_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
int i, reg;
unsigned char ovol, nvol;
int change;
for (i = 0; i < 2; ++i) {
reg = STAC946X_MIC_L_VOLUME + i;
nvol = ucontrol->value.integer.value[i] & 0x0f;
ovol = 0x0f - stac9460_get(ice, reg);
change = ((ovol & 0x0f) != nvol);
if (change)
stac9460_put(ice, reg, (0x0f - nvol) | (ovol & ~0x0f));
}
return change;
}
static int stac9460_mic_sw_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
static const char * const texts[2] = { "Line In", "Mic" };
uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
uinfo->count = 1;
uinfo->value.enumerated.items = 2;
if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
return 0;
}
static int stac9460_mic_sw_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
unsigned char val;
val = stac9460_get(ice, STAC946X_GENERAL_PURPOSE);
ucontrol->value.enumerated.item[0] = (val >> 7) & 0x1;
return 0;
}
static int stac9460_mic_sw_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
unsigned char new, old;
int change;
old = stac9460_get(ice, STAC946X_GENERAL_PURPOSE);
new = (ucontrol->value.enumerated.item[0] << 7 & 0x80) | (old & ~0x80);
change = (new != old);
if (change)
stac9460_put(ice, STAC946X_GENERAL_PURPOSE, new);
return change;
}
/*
* Handler for setting correct codec rate - called when rate change is detected
*/
static void stac9460_set_rate_val(struct snd_ice1712 *ice, unsigned int rate)
{
unsigned char old, new;
int idx;
unsigned char changed[7];
struct prodigy192_spec *spec = ice->spec;
if (rate == 0) /* no hint - S/PDIF input is master, simply return */
return;
else if (rate <= 48000)
new = 0x08; /* 256x, base rate mode */
else if (rate <= 96000)
new = 0x11; /* 256x, mid rate mode */
else
new = 0x12; /* 128x, high rate mode */
old = stac9460_get(ice, STAC946X_MASTER_CLOCKING);
if (old == new)
return;
/* change detected, setting master clock, muting first */
/* due to possible conflicts with mute controls - mutexing */
mutex_lock(&spec->mute_mutex);
/* we have to remember current mute status for each DAC */
for (idx = 0; idx < 7 ; ++idx)
changed[idx] = stac9460_dac_mute(ice,
STAC946X_MASTER_VOLUME + idx, 0);
/*printk(KERN_DEBUG "Rate change: %d, new MC: 0x%02x\n", rate, new);*/
stac9460_put(ice, STAC946X_MASTER_CLOCKING, new);
udelay(10);
/* unmuting - only originally unmuted dacs -
* i.e. those changed when muting */
for (idx = 0; idx < 7 ; ++idx) {
if (changed[idx])
stac9460_dac_mute(ice, STAC946X_MASTER_VOLUME + idx, 1);
}
mutex_unlock(&spec->mute_mutex);
}
static const DECLARE_TLV_DB_SCALE(db_scale_dac, -19125, 75, 0);
static const DECLARE_TLV_DB_SCALE(db_scale_adc, 0, 150, 0);
/*
* mixers
*/
static struct snd_kcontrol_new stac_controls[] = {
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Master Playback Switch",
.info = stac9460_dac_mute_info,
.get = stac9460_dac_mute_get,
.put = stac9460_dac_mute_put,
.private_value = 1,
.tlv = { .p = db_scale_dac }
},
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
SNDRV_CTL_ELEM_ACCESS_TLV_READ),
.name = "Master Playback Volume",
.info = stac9460_dac_vol_info,
.get = stac9460_dac_vol_get,
.put = stac9460_dac_vol_put,
.private_value = 1,
.tlv = { .p = db_scale_dac }
},
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "DAC Switch",
.count = 6,
.info = stac9460_dac_mute_info,
.get = stac9460_dac_mute_get,
.put = stac9460_dac_mute_put,
},
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
SNDRV_CTL_ELEM_ACCESS_TLV_READ),
.name = "DAC Volume",
.count = 6,
.info = stac9460_dac_vol_info,
.get = stac9460_dac_vol_get,
.put = stac9460_dac_vol_put,
.tlv = { .p = db_scale_dac }
},
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "ADC Capture Switch",
.count = 1,
.info = stac9460_adc_mute_info,
.get = stac9460_adc_mute_get,
.put = stac9460_adc_mute_put,
},
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
SNDRV_CTL_ELEM_ACCESS_TLV_READ),
.name = "ADC Capture Volume",
.count = 1,
.info = stac9460_adc_vol_info,
.get = stac9460_adc_vol_get,
.put = stac9460_adc_vol_put,
.tlv = { .p = db_scale_adc }
},
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Analog Capture Input",
.info = stac9460_mic_sw_info,
.get = stac9460_mic_sw_get,
.put = stac9460_mic_sw_put,
},
};
/* AK4114 - ICE1724 connections on Prodigy192 + MI/ODI/O */
/* CDTO (pin 32) -- GPIO11 pin 86
* CDTI (pin 33) -- GPIO10 pin 77
* CCLK (pin 34) -- GPIO9 pin 76
* CSN (pin 35) -- GPIO8 pin 75
*/
#define AK4114_ADDR 0x00 /* C1-C0: Chip Address
* (According to datasheet fixed to “00”)
*/
/*
* 4wire ak4114 protocol - writing data
*/
static void write_data(struct snd_ice1712 *ice, unsigned int gpio,
unsigned int data, int idx)
{
for (; idx >= 0; idx--) {
/* drop clock */
gpio &= ~VT1724_PRODIGY192_CCLK;
snd_ice1712_gpio_write(ice, gpio);
udelay(1);
/* set data */
if (data & (1 << idx))
gpio |= VT1724_PRODIGY192_CDOUT;
else
gpio &= ~VT1724_PRODIGY192_CDOUT;
snd_ice1712_gpio_write(ice, gpio);
udelay(1);
/* raise clock */
gpio |= VT1724_PRODIGY192_CCLK;
snd_ice1712_gpio_write(ice, gpio);
udelay(1);
}
}
/*
* 4wire ak4114 protocol - reading data
*/
static unsigned char read_data(struct snd_ice1712 *ice, unsigned int gpio,
int idx)
{
unsigned char data = 0;
for (; idx >= 0; idx--) {
/* drop clock */
gpio &= ~VT1724_PRODIGY192_CCLK;
snd_ice1712_gpio_write(ice, gpio);
udelay(1);
/* read data */
if (snd_ice1712_gpio_read(ice) & VT1724_PRODIGY192_CDIN)
data |= (1 << idx);
udelay(1);
/* raise clock */
gpio |= VT1724_PRODIGY192_CCLK;
snd_ice1712_gpio_write(ice, gpio);
udelay(1);
}
return data;
}
/*
* 4wire ak4114 protocol - starting sequence
*/
static unsigned int prodigy192_4wire_start(struct snd_ice1712 *ice)
{
unsigned int tmp;
snd_ice1712_save_gpio_status(ice);
tmp = snd_ice1712_gpio_read(ice);
tmp |= VT1724_PRODIGY192_CCLK; /* high at init */
tmp &= ~VT1724_PRODIGY192_CS; /* drop chip select */
snd_ice1712_gpio_write(ice, tmp);
udelay(1);
return tmp;
}
/*
* 4wire ak4114 protocol - final sequence
*/
static void prodigy192_4wire_finish(struct snd_ice1712 *ice, unsigned int tmp)
{
tmp |= VT1724_PRODIGY192_CS; /* raise chip select */
snd_ice1712_gpio_write(ice, tmp);
udelay(1);
snd_ice1712_restore_gpio_status(ice);
}
/*
* Write data to addr register of ak4114
*/
static void prodigy192_ak4114_write(void *private_data, unsigned char addr,
unsigned char data)
{
struct snd_ice1712 *ice = private_data;
unsigned int tmp, addrdata;
tmp = prodigy192_4wire_start(ice);
addrdata = (AK4114_ADDR << 6) | 0x20 | (addr & 0x1f);
addrdata = (addrdata << 8) | data;
write_data(ice, tmp, addrdata, 15);
prodigy192_4wire_finish(ice, tmp);
}
/*
* Read data from addr register of ak4114
*/
static unsigned char prodigy192_ak4114_read(void *private_data,
unsigned char addr)
{
struct snd_ice1712 *ice = private_data;
unsigned int tmp;
unsigned char data;
tmp = prodigy192_4wire_start(ice);
write_data(ice, tmp, (AK4114_ADDR << 6) | (addr & 0x1f), 7);
data = read_data(ice, tmp, 7);
prodigy192_4wire_finish(ice, tmp);
return data;
}
static int ak4114_input_sw_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
static const char * const texts[2] = { "Toslink", "Coax" };
uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
uinfo->count = 1;
uinfo->value.enumerated.items = 2;
if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
return 0;
}
static int ak4114_input_sw_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
unsigned char val;
val = prodigy192_ak4114_read(ice, AK4114_REG_IO1);
/* AK4114_IPS0 bit = 0 -> RX0 = Toslink
* AK4114_IPS0 bit = 1 -> RX1 = Coax
*/
ucontrol->value.enumerated.item[0] = (val & AK4114_IPS0) ? 1 : 0;
return 0;
}
static int ak4114_input_sw_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
unsigned char new, old, itemvalue;
int change;
old = prodigy192_ak4114_read(ice, AK4114_REG_IO1);
/* AK4114_IPS0 could be any bit */
itemvalue = (ucontrol->value.enumerated.item[0]) ? 0xff : 0x00;
new = (itemvalue & AK4114_IPS0) | (old & ~AK4114_IPS0);
change = (new != old);
if (change)
prodigy192_ak4114_write(ice, AK4114_REG_IO1, new);
return change;
}
static struct snd_kcontrol_new ak4114_controls[] = {
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "MIODIO IEC958 Capture Input",
.info = ak4114_input_sw_info,
.get = ak4114_input_sw_get,
.put = ak4114_input_sw_put,
}
};
static int prodigy192_ak4114_init(struct snd_ice1712 *ice)
{
static const unsigned char ak4114_init_vals[] = {
AK4114_RST | AK4114_PWN | AK4114_OCKS0 | AK4114_OCKS1,
/* ice1724 expects I2S and provides clock,
* DEM0 disables the deemphasis filter
*/
AK4114_DIF_I24I2S | AK4114_DEM0 ,
AK4114_TX1E,
AK4114_EFH_1024 | AK4114_DIT, /* default input RX0 */
0,
0
};
static const unsigned char ak4114_init_txcsb[] = {
0x41, 0x02, 0x2c, 0x00, 0x00
};
struct prodigy192_spec *spec = ice->spec;
int err;
err = snd_ak4114_create(ice->card,
prodigy192_ak4114_read,
prodigy192_ak4114_write,
ak4114_init_vals, ak4114_init_txcsb,
ice, &spec->ak4114);
if (err < 0)
return err;
/* AK4114 in Prodigy192 cannot detect external rate correctly.
* No reason to stop capture stream due to incorrect checks */
spec->ak4114->check_flags = AK4114_CHECK_NO_RATE;
return 0;
}
static void stac9460_proc_regs_read(struct snd_info_entry *entry,
struct snd_info_buffer *buffer)
{
struct snd_ice1712 *ice = entry->private_data;
int reg, val;
/* registers 0x0 - 0x14 */
for (reg = 0; reg <= 0x15; reg++) {
val = stac9460_get(ice, reg);
snd_iprintf(buffer, "0x%02x = 0x%02x\n", reg, val);
}
}
static void stac9460_proc_init(struct snd_ice1712 *ice)
{
struct snd_info_entry *entry;
if (!snd_card_proc_new(ice->card, "stac9460_codec", &entry))
snd_info_set_text_ops(entry, ice, stac9460_proc_regs_read);
}
static int prodigy192_add_controls(struct snd_ice1712 *ice)
{
struct prodigy192_spec *spec = ice->spec;
unsigned int i;
int err;
for (i = 0; i < ARRAY_SIZE(stac_controls); i++) {
err = snd_ctl_add(ice->card,
snd_ctl_new1(&stac_controls[i], ice));
if (err < 0)
return err;
}
if (spec->ak4114) {
/* ak4114 is connected */
for (i = 0; i < ARRAY_SIZE(ak4114_controls); i++) {
err = snd_ctl_add(ice->card,
snd_ctl_new1(&ak4114_controls[i],
ice));
if (err < 0)
return err;
}
err = snd_ak4114_build(spec->ak4114,
NULL, /* ak4114 in MIO/DI/O handles no IEC958 output */
ice->pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream);
if (err < 0)
return err;
}
stac9460_proc_init(ice);
return 0;
}
/*
* check for presence of MI/ODI/O add-on card with digital inputs
*/
static int prodigy192_miodio_exists(struct snd_ice1712 *ice)
{
unsigned char orig_value;
const unsigned char test_data = 0xd1; /* random value */
unsigned char addr = AK4114_REG_INT0_MASK; /* random SAFE address */
int exists = 0;
orig_value = prodigy192_ak4114_read(ice, addr);
prodigy192_ak4114_write(ice, addr, test_data);
if (prodigy192_ak4114_read(ice, addr) == test_data) {
/* ak4114 seems to communicate, apparently exists */
/* writing back original value */
prodigy192_ak4114_write(ice, addr, orig_value);
exists = 1;
}
return exists;
}
/*
* initialize the chip
*/
static int prodigy192_init(struct snd_ice1712 *ice)
{
static const unsigned short stac_inits_prodigy[] = {
STAC946X_RESET, 0,
STAC946X_MASTER_CLOCKING, 0x11,
/* STAC946X_MASTER_VOLUME, 0,
STAC946X_LF_VOLUME, 0,
STAC946X_RF_VOLUME, 0,
STAC946X_LR_VOLUME, 0,
STAC946X_RR_VOLUME, 0,
STAC946X_CENTER_VOLUME, 0,
STAC946X_LFE_VOLUME, 0,*/
(unsigned short)-1
};
const unsigned short *p;
int err = 0;
struct prodigy192_spec *spec;
/* prodigy 192 */
ice->num_total_dacs = 6;
ice->num_total_adcs = 2;
ice->vt1720 = 0; /* ice1724, e.g. 23 GPIOs */
spec = kzalloc(sizeof(*spec), GFP_KERNEL);
if (!spec)
return -ENOMEM;
ice->spec = spec;
mutex_init(&spec->mute_mutex);
/* initialize codec */
p = stac_inits_prodigy;
for (; *p != (unsigned short)-1; p += 2)
stac9460_put(ice, p[0], p[1]);
ice->gpio.set_pro_rate = stac9460_set_rate_val;
/* MI/ODI/O add on card with AK4114 */
if (prodigy192_miodio_exists(ice)) {
err = prodigy192_ak4114_init(ice);
/* from this moment if err = 0 then
* spec->ak4114 should not be null
*/
snd_printdd("AK4114 initialized with status %d\n", err);
} else
snd_printdd("AK4114 not found\n");
if (err < 0)
return err;
return 0;
}
/*
* Aureon boards don't provide the EEPROM data except for the vendor IDs.
* hence the driver needs to sets up it properly.
*/
static unsigned char prodigy71_eeprom[] = {
[ICE_EEP2_SYSCONF] = 0x6a, /* 49MHz crystal, mpu401,
* spdif-in+ 1 stereo ADC,
* 3 stereo DACs
*/
[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] = 0xff,
[ICE_EEP2_GPIO_DIR1] = ~(VT1724_PRODIGY192_CDIN >> 8) ,
[ICE_EEP2_GPIO_DIR2] = 0xbf,
[ICE_EEP2_GPIO_MASK] = 0x00,
[ICE_EEP2_GPIO_MASK1] = 0x00,
[ICE_EEP2_GPIO_MASK2] = 0x00,
[ICE_EEP2_GPIO_STATE] = 0x00,
[ICE_EEP2_GPIO_STATE1] = 0x00,
[ICE_EEP2_GPIO_STATE2] = 0x10, /* GPIO20: 0 = CD drive dig. input
* passthrough,
* 1 = SPDIF-OUT from ice1724
*/
};
/* entry point */
struct snd_ice1712_card_info snd_vt1724_prodigy192_cards[] = {
{
.subvendor = VT1724_SUBDEVICE_PRODIGY192VE,
.name = "Audiotrak Prodigy 192",
.model = "prodigy192",
.chip_init = prodigy192_init,
.build_controls = prodigy192_add_controls,
.eeprom_size = sizeof(prodigy71_eeprom),
.eeprom_data = prodigy71_eeprom,
},
{ } /* terminator */
};