/*
* ALSA driver for ICEnsemble VT1724 (Envy24HT)
*
* Lowlevel functions for Philips PSC724 Ultimate Edge
*
* Copyright (c) 2012 Ondrej Zary <linux@rainbow-software.org>
*
* 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/init.h>
#include <linux/slab.h>
#include <sound/core.h>
#include "ice1712.h"
#include "envy24ht.h"
#include "psc724.h"
#include "wm8766.h"
#include "wm8776.h"
struct psc724_spec {
struct snd_wm8766 wm8766;
struct snd_wm8776 wm8776;
bool mute_all, jack_detect;
struct snd_ice1712 *ice;
struct delayed_work hp_work;
bool hp_connected;
};
/****************************************************************************/
/* PHILIPS PSC724 ULTIMATE EDGE */
/****************************************************************************/
/*
* VT1722 (Envy24GT) - 6 outputs, 4 inputs (only 2 used), 24-bit/96kHz
*
* system configuration ICE_EEP2_SYSCONF=0x42
* XIN1 49.152MHz
* no MPU401
* one stereo ADC, no S/PDIF receiver
* three stereo DACs (FRONT, REAR, CENTER+LFE)
*
* AC-Link configuration ICE_EEP2_ACLINK=0x80
* use I2S, not AC97
*
* I2S converters feature ICE_EEP2_I2S=0x30
* I2S codec has no volume/mute control feature (bug!)
* I2S codec does not support 96KHz or 192KHz (bug!)
* I2S codec 24bits
*
* S/PDIF configuration ICE_EEP2_SPDIF=0xc1
* Enable integrated S/PDIF transmitter
* internal S/PDIF out implemented
* No S/PDIF input
* External S/PDIF out implemented
*
*
* ** connected chips **
*
* WM8776
* 2-channel DAC used for main output and stereo ADC (with 10-channel MUX)
* AIN1: LINE IN, AIN2: CD/VIDEO, AIN3: AUX, AIN4: Front MIC, AIN5: Rear MIC
* Controlled by I2C using VT1722 I2C interface:
* MODE (pin16) -- GND
* CE (pin17) -- GND I2C mode (address=0x34)
* DI (pin18) -- SDA (VT1722 pin70)
* CL (pin19) -- SCLK (VT1722 pin71)
*
* WM8766
* 6-channel DAC used for rear & center/LFE outputs (only 4 channels used)
* Controlled by SPI using VT1722 GPIO pins:
* MODE (pin 1) -- GPIO19 (VT1722 pin99)
* ML/I2S (pin11) -- GPIO18 (VT1722 pin98)
* MC/IWL (pin12) -- GPIO17 (VT1722 pin97)
* MD/DM (pin13) -- GPIO16 (VT1722 pin96)
* MUTE (pin14) -- GPIO20 (VT1722 pin101)
*
* GPIO14 is used as input for headphone jack detection (1 = connected)
* GPIO22 is used as MUTE ALL output, grounding all 6 channels
*
* ** output pins and device names **
*
* 5.1ch name -- output connector color -- device (-D option)
*
* FRONT 2ch -- green -- plughw:0,0
* CENTER(Lch) SUBWOOFER(Rch) -- orange -- plughw:0,2,0
* REAR 2ch -- black -- plughw:0,2,1
*/
/* codec access low-level functions */
#define GPIO_HP_JACK (1 << 14)
#define GPIO_MUTE_SUR (1 << 20)
#define GPIO_MUTE_ALL (1 << 22)
#define JACK_INTERVAL 1000
#define PSC724_SPI_DELAY 1
#define PSC724_SPI_DATA (1 << 16)
#define PSC724_SPI_CLK (1 << 17)
#define PSC724_SPI_LOAD (1 << 18)
#define PSC724_SPI_MASK (PSC724_SPI_DATA | PSC724_SPI_CLK | PSC724_SPI_LOAD)
static void psc724_wm8766_write(struct snd_wm8766 *wm, u16 addr, u16 data)
{
struct psc724_spec *spec = container_of(wm, struct psc724_spec, wm8766);
struct snd_ice1712 *ice = spec->ice;
u32 st, bits;
int i;
snd_ice1712_save_gpio_status(ice);
st = ((addr & 0x7f) << 9) | (data & 0x1ff);
snd_ice1712_gpio_set_dir(ice, ice->gpio.direction | PSC724_SPI_MASK);
snd_ice1712_gpio_set_mask(ice, ice->gpio.write_mask & ~PSC724_SPI_MASK);
bits = snd_ice1712_gpio_read(ice) & ~PSC724_SPI_MASK;
snd_ice1712_gpio_write(ice, bits);
for (i = 0; i < 16; i++) {
udelay(PSC724_SPI_DELAY);
bits &= ~PSC724_SPI_CLK;
/* MSB first */
st <<= 1;
if (st & 0x10000)
bits |= PSC724_SPI_DATA;
else
bits &= ~PSC724_SPI_DATA;
snd_ice1712_gpio_write(ice, bits);
/* CLOCK high */
udelay(PSC724_SPI_DELAY);
bits |= PSC724_SPI_CLK;
snd_ice1712_gpio_write(ice, bits);
}
/* LOAD high */
udelay(PSC724_SPI_DELAY);
bits |= PSC724_SPI_LOAD;
snd_ice1712_gpio_write(ice, bits);
/* LOAD low, DATA and CLOCK high */
udelay(PSC724_SPI_DELAY);
bits |= (PSC724_SPI_DATA | PSC724_SPI_CLK);
snd_ice1712_gpio_write(ice, bits);
snd_ice1712_restore_gpio_status(ice);
}
static void psc724_wm8776_write(struct snd_wm8776 *wm, u8 addr, u8 data)
{
struct psc724_spec *spec = container_of(wm, struct psc724_spec, wm8776);
snd_vt1724_write_i2c(spec->ice, 0x34, addr, data);
}
/* mute all */
static void psc724_set_master_switch(struct snd_ice1712 *ice, bool on)
{
unsigned int bits = snd_ice1712_gpio_read(ice);
struct psc724_spec *spec = ice->spec;
spec->mute_all = !on;
if (on)
bits &= ~(GPIO_MUTE_ALL | GPIO_MUTE_SUR);
else
bits |= GPIO_MUTE_ALL | GPIO_MUTE_SUR;
snd_ice1712_gpio_write(ice, bits);
}
static bool psc724_get_master_switch(struct snd_ice1712 *ice)
{
struct psc724_spec *spec = ice->spec;
return !spec->mute_all;
}
/* jack detection */
static void psc724_set_jack_state(struct snd_ice1712 *ice, bool hp_connected)
{
struct psc724_spec *spec = ice->spec;
struct snd_ctl_elem_id elem_id;
struct snd_kcontrol *kctl;
u16 power = spec->wm8776.regs[WM8776_REG_PWRDOWN] & ~WM8776_PWR_HPPD;
psc724_set_master_switch(ice, !hp_connected);
if (!hp_connected)
power |= WM8776_PWR_HPPD;
snd_wm8776_set_power(&spec->wm8776, power);
spec->hp_connected = hp_connected;
/* notify about master speaker mute change */
memset(&elem_id, 0, sizeof(elem_id));
elem_id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
strncpy(elem_id.name, "Master Speakers Playback Switch",
sizeof(elem_id.name));
kctl = snd_ctl_find_id(ice->card, &elem_id);
snd_ctl_notify(ice->card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id);
/* and headphone mute change */
strncpy(elem_id.name, spec->wm8776.ctl[WM8776_CTL_HP_SW].name,
sizeof(elem_id.name));
kctl = snd_ctl_find_id(ice->card, &elem_id);
snd_ctl_notify(ice->card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id);
}
static void psc724_update_hp_jack_state(struct work_struct *work)
{
struct psc724_spec *spec = container_of(work, struct psc724_spec,
hp_work.work);
struct snd_ice1712 *ice = spec->ice;
bool hp_connected = snd_ice1712_gpio_read(ice) & GPIO_HP_JACK;
schedule_delayed_work(&spec->hp_work, msecs_to_jiffies(JACK_INTERVAL));
if (hp_connected == spec->hp_connected)
return;
psc724_set_jack_state(ice, hp_connected);
}
static void psc724_set_jack_detection(struct snd_ice1712 *ice, bool on)
{
struct psc724_spec *spec = ice->spec;
if (spec->jack_detect == on)
return;
spec->jack_detect = on;
if (on) {
bool hp_connected = snd_ice1712_gpio_read(ice) & GPIO_HP_JACK;
psc724_set_jack_state(ice, hp_connected);
schedule_delayed_work(&spec->hp_work,
msecs_to_jiffies(JACK_INTERVAL));
} else
cancel_delayed_work_sync(&spec->hp_work);
}
static bool psc724_get_jack_detection(struct snd_ice1712 *ice)
{
struct psc724_spec *spec = ice->spec;
return spec->jack_detect;
}
/* mixer controls */
struct psc724_control {
const char *name;
void (*set)(struct snd_ice1712 *ice, bool on);
bool (*get)(struct snd_ice1712 *ice);
};
static const struct psc724_control psc724_cont[] = {
{
.name = "Master Speakers Playback Switch",
.set = psc724_set_master_switch,
.get = psc724_get_master_switch,
},
{
.name = "Headphone Jack Detection Playback Switch",
.set = psc724_set_jack_detection,
.get = psc724_get_jack_detection,
},
};
static int psc724_ctl_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
int n = kcontrol->private_value;
ucontrol->value.integer.value[0] = psc724_cont[n].get(ice);
return 0;
}
static int psc724_ctl_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
int n = kcontrol->private_value;
psc724_cont[n].set(ice, ucontrol->value.integer.value[0]);
return 0;
}
static const char *front_volume = "Front Playback Volume";
static const char *front_switch = "Front Playback Switch";
static const char *front_zc = "Front Zero Cross Detect Playback Switch";
static const char *front_izd = "Front Infinite Zero Detect Playback Switch";
static const char *front_phase = "Front Phase Invert Playback Switch";
static const char *front_deemph = "Front Deemphasis Playback Switch";
static const char *ain1_switch = "Line Capture Switch";
static const char *ain2_switch = "CD Capture Switch";
static const char *ain3_switch = "AUX Capture Switch";
static const char *ain4_switch = "Front Mic Capture Switch";
static const char *ain5_switch = "Rear Mic Capture Switch";
static const char *rear_volume = "Surround Playback Volume";
static const char *clfe_volume = "CLFE Playback Volume";
static const char *rear_switch = "Surround Playback Switch";
static const char *clfe_switch = "CLFE Playback Switch";
static const char *rear_phase = "Surround Phase Invert Playback Switch";
static const char *clfe_phase = "CLFE Phase Invert Playback Switch";
static const char *rear_deemph = "Surround Deemphasis Playback Switch";
static const char *clfe_deemph = "CLFE Deemphasis Playback Switch";
static const char *rear_clfe_izd = "Rear Infinite Zero Detect Playback Switch";
static const char *rear_clfe_zc = "Rear Zero Cross Detect Playback Switch";
static int psc724_add_controls(struct snd_ice1712 *ice)
{
struct snd_kcontrol_new cont;
struct snd_kcontrol *ctl;
int err, i;
struct psc724_spec *spec = ice->spec;
spec->wm8776.ctl[WM8776_CTL_DAC_VOL].name = front_volume;
spec->wm8776.ctl[WM8776_CTL_DAC_SW].name = front_switch;
spec->wm8776.ctl[WM8776_CTL_DAC_ZC_SW].name = front_zc;
spec->wm8776.ctl[WM8776_CTL_AUX_SW].name = NULL;
spec->wm8776.ctl[WM8776_CTL_DAC_IZD_SW].name = front_izd;
spec->wm8776.ctl[WM8776_CTL_PHASE_SW].name = front_phase;
spec->wm8776.ctl[WM8776_CTL_DEEMPH_SW].name = front_deemph;
spec->wm8776.ctl[WM8776_CTL_INPUT1_SW].name = ain1_switch;
spec->wm8776.ctl[WM8776_CTL_INPUT2_SW].name = ain2_switch;
spec->wm8776.ctl[WM8776_CTL_INPUT3_SW].name = ain3_switch;
spec->wm8776.ctl[WM8776_CTL_INPUT4_SW].name = ain4_switch;
spec->wm8776.ctl[WM8776_CTL_INPUT5_SW].name = ain5_switch;
snd_wm8776_build_controls(&spec->wm8776);
spec->wm8766.ctl[WM8766_CTL_CH1_VOL].name = rear_volume;
spec->wm8766.ctl[WM8766_CTL_CH2_VOL].name = clfe_volume;
spec->wm8766.ctl[WM8766_CTL_CH3_VOL].name = NULL;
spec->wm8766.ctl[WM8766_CTL_CH1_SW].name = rear_switch;
spec->wm8766.ctl[WM8766_CTL_CH2_SW].name = clfe_switch;
spec->wm8766.ctl[WM8766_CTL_CH3_SW].name = NULL;
spec->wm8766.ctl[WM8766_CTL_PHASE1_SW].name = rear_phase;
spec->wm8766.ctl[WM8766_CTL_PHASE2_SW].name = clfe_phase;
spec->wm8766.ctl[WM8766_CTL_PHASE3_SW].name = NULL;
spec->wm8766.ctl[WM8766_CTL_DEEMPH1_SW].name = rear_deemph;
spec->wm8766.ctl[WM8766_CTL_DEEMPH2_SW].name = clfe_deemph;
spec->wm8766.ctl[WM8766_CTL_DEEMPH3_SW].name = NULL;
spec->wm8766.ctl[WM8766_CTL_IZD_SW].name = rear_clfe_izd;
spec->wm8766.ctl[WM8766_CTL_ZC_SW].name = rear_clfe_zc;
snd_wm8766_build_controls(&spec->wm8766);
memset(&cont, 0, sizeof(cont));
cont.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
for (i = 0; i < ARRAY_SIZE(psc724_cont); i++) {
cont.private_value = i;
cont.name = psc724_cont[i].name;
cont.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
cont.info = snd_ctl_boolean_mono_info;
cont.get = psc724_ctl_get;
cont.put = psc724_ctl_put;
ctl = snd_ctl_new1(&cont, ice);
if (!ctl)
return -ENOMEM;
err = snd_ctl_add(ice->card, ctl);
if (err < 0)
return err;
}
return 0;
}
static void psc724_set_pro_rate(struct snd_ice1712 *ice, unsigned int rate)
{
struct psc724_spec *spec = ice->spec;
/* restore codec volume settings after rate change (PMCLK stop) */
snd_wm8776_volume_restore(&spec->wm8776);
snd_wm8766_volume_restore(&spec->wm8766);
}
/* power management */
#ifdef CONFIG_PM_SLEEP
static int psc724_resume(struct snd_ice1712 *ice)
{
struct psc724_spec *spec = ice->spec;
snd_wm8776_resume(&spec->wm8776);
snd_wm8766_resume(&spec->wm8766);
return 0;
}
#endif
/* init */
static int psc724_init(struct snd_ice1712 *ice)
{
struct psc724_spec *spec;
spec = kzalloc(sizeof(*spec), GFP_KERNEL);
if (!spec)
return -ENOMEM;
ice->spec = spec;
spec->ice = ice;
ice->num_total_dacs = 6;
ice->num_total_adcs = 2;
spec->wm8776.ops.write = psc724_wm8776_write;
spec->wm8776.card = ice->card;
snd_wm8776_init(&spec->wm8776);
spec->wm8766.ops.write = psc724_wm8766_write;
spec->wm8766.card = ice->card;
#ifdef CONFIG_PM_SLEEP
ice->pm_resume = psc724_resume;
ice->pm_suspend_enabled = 1;
#endif
snd_wm8766_init(&spec->wm8766);
snd_wm8766_set_if(&spec->wm8766,
WM8766_IF_FMT_I2S | WM8766_IF_IWL_24BIT);
ice->gpio.set_pro_rate = psc724_set_pro_rate;
INIT_DELAYED_WORK(&spec->hp_work, psc724_update_hp_jack_state);
psc724_set_jack_detection(ice, true);
return 0;
}
static void psc724_exit(struct snd_ice1712 *ice)
{
struct psc724_spec *spec = ice->spec;
cancel_delayed_work_sync(&spec->hp_work);
}
/* PSC724 has buggy EEPROM (no 96&192kHz, all FFh GPIOs), so override it here */
static unsigned char psc724_eeprom[] = {
[ICE_EEP2_SYSCONF] = 0x42, /* 49.152MHz, 1 ADC, 3 DACs */
[ICE_EEP2_ACLINK] = 0x80, /* I2S */
[ICE_EEP2_I2S] = 0xf0, /* I2S volume, 96kHz, 24bit */
[ICE_EEP2_SPDIF] = 0xc1, /* spdif out-en, out-int, no input */
/* GPIO outputs */
[ICE_EEP2_GPIO_DIR2] = 0x5f, /* MUTE_ALL,WM8766 MUTE/MODE/ML/MC/MD */
/* GPIO write enable */
[ICE_EEP2_GPIO_MASK] = 0xff, /* read-only */
[ICE_EEP2_GPIO_MASK1] = 0xff, /* read-only */
[ICE_EEP2_GPIO_MASK2] = 0xa0, /* MUTE_ALL,WM8766 MUTE/MODE/ML/MC/MD */
/* GPIO initial state */
[ICE_EEP2_GPIO_STATE2] = 0x20, /* unmuted, all WM8766 pins low */
};
struct snd_ice1712_card_info snd_vt1724_psc724_cards[] = {
{
.subvendor = VT1724_SUBDEVICE_PSC724,
.name = "Philips PSC724 Ultimate Edge",
.model = "psc724",
.chip_init = psc724_init,
.chip_exit = psc724_exit,
.build_controls = psc724_add_controls,
.eeprom_size = sizeof(psc724_eeprom),
.eeprom_data = psc724_eeprom,
},
{} /*terminator*/
};