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linux-next/sound/pci/ice1712/wtm.c
Clément Guedez 1aa9a4ea4f ALSA: ice1724: ESI W192M: Add sampling rate control of the ADC/DAC 
Add sampling rate control for ADC/DAC for ESI W192M.
Allow to switch between 48K/96K/192K sampling rate.
All DAC need to be mute when changing samplerate.

Signed-off-by: Clément Guedez <klem.dev@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-03-18 08:07:00 +01:00

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/*
* ALSA driver for ICEnsemble VT1724 (Envy24HT)
*
* Lowlevel functions for Ego Sys Waveterminal 192M
*
* Copyright (c) 2006 Guedez Clement <klem.dev@gmail.com>
* Some functions are taken from the Prodigy192 driver
* source
*
* 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 <sound/core.h>
#include <sound/tlv.h>
#include <linux/slab.h>
#include "ice1712.h"
#include "envy24ht.h"
#include "wtm.h"
#include "stac946x.h"
struct wtm_spec {
/* rate change needs atomic mute/unmute of all dacs*/
struct mutex mute_mutex;
};
/*
* 2*ADC 6*DAC no1 ringbuffer r/w on i2c bus
*/
static inline void stac9460_put(struct snd_ice1712 *ice, int reg,
unsigned char val)
{
snd_vt1724_write_i2c(ice, STAC9460_I2C_ADDR, reg, val);
}
static inline unsigned char stac9460_get(struct snd_ice1712 *ice, int reg)
{
return snd_vt1724_read_i2c(ice, STAC9460_I2C_ADDR, reg);
}
/*
* 2*ADC 2*DAC no2 ringbuffer r/w on i2c bus
*/
static inline void stac9460_2_put(struct snd_ice1712 *ice, int reg,
unsigned char val)
{
snd_vt1724_write_i2c(ice, STAC9460_2_I2C_ADDR, reg, val);
}
static inline unsigned char stac9460_2_get(struct snd_ice1712 *ice, int reg)
{
return snd_vt1724_read_i2c(ice, STAC9460_2_I2C_ADDR, reg);
}
/*
* DAC mute control
*/
static void stac9460_dac_mute_all(struct snd_ice1712 *ice, unsigned char mute,
unsigned short int *change_mask)
{
unsigned char new, old;
int id, idx, change;
/*stac9460 1*/
for (id = 0; id < 7; id++) {
if (*change_mask & (0x01 << id)) {
if (id == 0)
idx = STAC946X_MASTER_VOLUME;
else
idx = STAC946X_LF_VOLUME - 1 + id;
old = stac9460_get(ice, idx);
new = (~mute << 7 & 0x80) | (old & ~0x80);
change = (new != old);
if (change) {
stac9460_put(ice, idx, new);
*change_mask = *change_mask | (0x01 << id);
} else {
*change_mask = *change_mask & ~(0x01 << id);
}
}
}
/*stac9460 2*/
for (id = 0; id < 3; id++) {
if (*change_mask & (0x01 << (id + 7))) {
if (id == 0)
idx = STAC946X_MASTER_VOLUME;
else
idx = STAC946X_LF_VOLUME - 1 + id;
old = stac9460_2_get(ice, idx);
new = (~mute << 7 & 0x80) | (old & ~0x80);
change = (new != old);
if (change) {
stac9460_2_put(ice, idx, new);
*change_mask = *change_mask | (0x01 << id);
} else {
*change_mask = *change_mask & ~(0x01 << id);
}
}
}
}
#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);
struct wtm_spec *spec = ice->spec;
unsigned char val;
int idx, id;
mutex_lock(&spec->mute_mutex);
if (kcontrol->private_value) {
idx = STAC946X_MASTER_VOLUME;
id = 0;
} else {
id = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
idx = id + STAC946X_LF_VOLUME;
}
if (id < 6)
val = stac9460_get(ice, idx);
else
val = stac9460_2_get(ice, idx - 6);
ucontrol->value.integer.value[0] = (~val >> 7) & 0x1;
mutex_unlock(&spec->mute_mutex);
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);
unsigned char new, old;
int id, idx;
int change;
if (kcontrol->private_value) {
idx = STAC946X_MASTER_VOLUME;
old = stac9460_get(ice, idx);
new = (~ucontrol->value.integer.value[0] << 7 & 0x80) |
(old & ~0x80);
change = (new != old);
if (change) {
stac9460_put(ice, idx, new);
stac9460_2_put(ice, idx, new);
}
} else {
id = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
idx = id + STAC946X_LF_VOLUME;
if (id < 6)
old = stac9460_get(ice, idx);
else
old = stac9460_2_get(ice, idx - 6);
new = (~ucontrol->value.integer.value[0] << 7 & 0x80) |
(old & ~0x80);
change = (new != old);
if (change) {
if (id < 6)
stac9460_put(ice, idx, new);
else
stac9460_2_put(ice, idx - 6, new);
}
}
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, id;
unsigned char vol;
if (kcontrol->private_value) {
idx = STAC946X_MASTER_VOLUME;
id = 0;
} else {
id = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
idx = id + STAC946X_LF_VOLUME;
}
if (id < 6)
vol = stac9460_get(ice, idx) & 0x7f;
else
vol = stac9460_2_get(ice, idx - 6) & 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, id;
unsigned char tmp, ovol, nvol;
int change;
if (kcontrol->private_value) {
idx = STAC946X_MASTER_VOLUME;
nvol = ucontrol->value.integer.value[0] & 0x7f;
tmp = stac9460_get(ice, idx);
ovol = 0x7f - (tmp & 0x7f);
change = (ovol != nvol);
if (change) {
stac9460_put(ice, idx, (0x7f - nvol) | (tmp & 0x80));
stac9460_2_put(ice, idx, (0x7f - nvol) | (tmp & 0x80));
}
} else {
id = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
idx = id + STAC946X_LF_VOLUME;
nvol = ucontrol->value.integer.value[0] & 0x7f;
if (id < 6)
tmp = stac9460_get(ice, idx);
else
tmp = stac9460_2_get(ice, idx - 6);
ovol = 0x7f - (tmp & 0x7f);
change = (ovol != nvol);
if (change) {
if (id < 6)
stac9460_put(ice, idx, (0x7f - nvol) |
(tmp & 0x80));
else
stac9460_2_put(ice, idx-6, (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, id;
id = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
if (id == 0) {
for (i = 0; i < 2; ++i) {
val = stac9460_get(ice, STAC946X_MIC_L_VOLUME + i);
ucontrol->value.integer.value[i] = ~val>>7 & 0x1;
}
} else {
for (i = 0; i < 2; ++i) {
val = stac9460_2_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, id;
int change;
id = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
if (id == 0) {
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);
}
} else {
for (i = 0; i < 2; ++i) {
reg = STAC946X_MIC_L_VOLUME + i;
old = stac9460_2_get(ice, reg);
new = (~ucontrol->value.integer.value[i]<<7&0x80) |
(old&~0x80);
change = (new != old);
if (change)
stac9460_2_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, id;
unsigned char vol;
id = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
if (id == 0) {
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;
}
} else {
for (i = 0; i < 2; ++i) {
reg = STAC946X_MIC_L_VOLUME + i;
vol = stac9460_2_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, id;
unsigned char ovol, nvol;
int change;
id = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
if (id == 0) {
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));
}
} else {
for (i = 0; i < 2; ++i) {
reg = STAC946X_MIC_L_VOLUME + i;
nvol = ucontrol->value.integer.value[i] & 0x0f;
ovol = 0x0f - stac9460_2_get(ice, reg);
change = ((ovol & 0x0f) != nvol);
if (change)
stac9460_2_put(ice, reg, (0x0f - nvol) |
(ovol & ~0x0f));
}
}
return change;
}
/*
* MIC / LINE switch fonction
*/
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" };
return snd_ctl_enum_info(uinfo, 1, 2, texts);
}
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;
int id;
id = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
if (id == 0)
val = stac9460_get(ice, STAC946X_GENERAL_PURPOSE);
else
val = stac9460_2_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, id;
id = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
if (id == 0)
old = stac9460_get(ice, STAC946X_GENERAL_PURPOSE);
else
old = stac9460_2_get(ice, STAC946X_GENERAL_PURPOSE);
new = (ucontrol->value.enumerated.item[0] << 7 & 0x80) | (old & ~0x80);
change = (new != old);
if (change) {
if (id == 0)
stac9460_put(ice, STAC946X_GENERAL_PURPOSE, new);
else
stac9460_2_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;
unsigned short int changed;
struct wtm_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 */
changed = 0xFFFF;
stac9460_dac_mute_all(ice, 0, &changed);
/*printk(KERN_DEBUG "Rate change: %d, new MC: 0x%02x\n", rate, new);*/
stac9460_put(ice, STAC946X_MASTER_CLOCKING, new);
stac9460_2_put(ice, STAC946X_MASTER_CLOCKING, new);
udelay(10);
/* unmuting - only originally unmuted dacs -
* i.e. those changed when muting */
stac9460_dac_mute_all(ice, 1, &changed);
mutex_unlock(&spec->mute_mutex);
}
/*Limits value in dB for fader*/
static const DECLARE_TLV_DB_SCALE(db_scale_dac, -19125, 75, 0);
static const DECLARE_TLV_DB_SCALE(db_scale_adc, 0, 150, 0);
/*
* Control tabs
*/
static struct snd_kcontrol_new stac9640_controls[] = {
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
SNDRV_CTL_ELEM_ACCESS_TLV_READ),
.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,
.name = "Master Playback Volume",
.info = stac9460_dac_vol_info,
.get = stac9460_dac_vol_get,
.put = stac9460_dac_vol_put,
.private_value = 1,
},
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "MIC/Line Input Enum",
.count = 2,
.info = stac9460_mic_sw_info,
.get = stac9460_mic_sw_get,
.put = stac9460_mic_sw_put,
},
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "DAC Switch",
.count = 8,
.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 = 8,
.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 Switch",
.count = 2,
.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 Volume",
.count = 2,
.info = stac9460_adc_vol_info,
.get = stac9460_adc_vol_get,
.put = stac9460_adc_vol_put,
.tlv = { .p = db_scale_adc }
}
};
/*INIT*/
static int wtm_add_controls(struct snd_ice1712 *ice)
{
unsigned int i;
int err;
for (i = 0; i < ARRAY_SIZE(stac9640_controls); i++) {
err = snd_ctl_add(ice->card,
snd_ctl_new1(&stac9640_controls[i], ice));
if (err < 0)
return err;
}
return 0;
}
static int wtm_init(struct snd_ice1712 *ice)
{
static unsigned short stac_inits_wtm[] = {
STAC946X_RESET, 0,
STAC946X_MASTER_CLOCKING, 0x11,
(unsigned short)-1
};
unsigned short *p;
struct wtm_spec *spec;
/*WTM 192M*/
ice->num_total_dacs = 8;
ice->num_total_adcs = 4;
ice->force_rdma1 = 1;
/*init mutex for dac mute conflict*/
spec = kzalloc(sizeof(*spec), GFP_KERNEL);
if (!spec)
return -ENOMEM;
ice->spec = spec;
mutex_init(&spec->mute_mutex);
/*initialize codec*/
p = stac_inits_wtm;
for (; *p != (unsigned short)-1; p += 2) {
stac9460_put(ice, p[0], p[1]);
stac9460_2_put(ice, p[0], p[1]);
}
ice->gpio.set_pro_rate = stac9460_set_rate_val;
return 0;
}
static unsigned char wtm_eeprom[] = {
[ICE_EEP2_SYSCONF] = 0x67, /*SYSCONF: clock 192KHz, mpu401,
4ADC, 8DAC */
[ICE_EEP2_ACLINK] = 0x80, /* ACLINK : I2S */
[ICE_EEP2_I2S] = 0xf8, /* I2S: vol; 96k, 24bit, 192k */
[ICE_EEP2_SPDIF] = 0xc1, /*SPDIF: out-en, spidf ext out*/
[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,
[ICE_EEP2_GPIO_STATE1] = 0x80,
[ICE_EEP2_GPIO_STATE2] = 0x00,
};
/*entry point*/
struct snd_ice1712_card_info snd_vt1724_wtm_cards[] = {
{
.subvendor = VT1724_SUBDEVICE_WTM,
.name = "ESI Waveterminal 192M",
.model = "WT192M",
.chip_init = wtm_init,
.build_controls = wtm_add_controls,
.eeprom_size = sizeof(wtm_eeprom),
.eeprom_data = wtm_eeprom,
},
{} /*terminator*/
};
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