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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* ALSA driver for ICEnsemble ICE1712 (Envy24)
*
* Lowlevel functions for M-Audio Audiophile 192, Revolution 7.1 and 5.1
*
* Copyright (c) 2003 Takashi Iwai <tiwai@suse.de>
*/
#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 "revo.h"
/* a non-standard I2C device for revo51 */
struct revo51_spec {
struct snd_i2c_device *dev;
struct snd_pt2258 *pt2258;
struct ak4114 *ak4114;
};
static void revo_i2s_mclk_changed(struct snd_ice1712 *ice)
{
/* assert PRST# to converters; MT05 bit 7 */
outb(inb(ICEMT1724(ice, AC97_CMD)) | 0x80, ICEMT1724(ice, AC97_CMD));
mdelay(5);
/* deassert PRST# */
outb(inb(ICEMT1724(ice, AC97_CMD)) & ~0x80, ICEMT1724(ice, AC97_CMD));
}
/*
* change the rate of Envy24HT, AK4355 and AK4381
*/
static void revo_set_rate_val(struct snd_akm4xxx *ak, unsigned int rate)
{
unsigned char old, tmp, dfs;
int reg, shift;
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;
if (ak->type == SND_AK4355 || ak->type == SND_AK4358) {
reg = 2;
shift = 4;
} else {
reg = 1;
shift = 3;
}
tmp = snd_akm4xxx_get(ak, 0, reg);
old = (tmp >> shift) & 0x03;
if (old == dfs)
return;
/* reset DFS */
snd_akm4xxx_reset(ak, 1);
tmp = snd_akm4xxx_get(ak, 0, reg);
tmp &= ~(0x03 << shift);
tmp |= dfs << shift;
/* snd_akm4xxx_write(ak, 0, reg, tmp); */
snd_akm4xxx_set(ak, 0, reg, tmp); /* value is written in reset(0) */
snd_akm4xxx_reset(ak, 0);
}
/*
* I2C access to the PT2258 volume controller on GPIO 6/7 (Revolution 5.1)
*/
static void revo_i2c_start(struct snd_i2c_bus *bus)
{
struct snd_ice1712 *ice = bus->private_data;
snd_ice1712_save_gpio_status(ice);
}
static void revo_i2c_stop(struct snd_i2c_bus *bus)
{
struct snd_ice1712 *ice = bus->private_data;
snd_ice1712_restore_gpio_status(ice);
}
static void revo_i2c_direction(struct snd_i2c_bus *bus, int clock, int data)
{
struct snd_ice1712 *ice = bus->private_data;
unsigned int mask, val;
val = 0;
if (clock)
val |= VT1724_REVO_I2C_CLOCK; /* write SCL */
if (data)
val |= VT1724_REVO_I2C_DATA; /* write SDA */
mask = VT1724_REVO_I2C_CLOCK | VT1724_REVO_I2C_DATA;
ice->gpio.direction &= ~mask;
ice->gpio.direction |= val;
snd_ice1712_gpio_set_dir(ice, ice->gpio.direction);
snd_ice1712_gpio_set_mask(ice, ~mask);
}
static void revo_i2c_setlines(struct snd_i2c_bus *bus, int clk, int data)
{
struct snd_ice1712 *ice = bus->private_data;
unsigned int val = 0;
if (clk)
val |= VT1724_REVO_I2C_CLOCK;
if (data)
val |= VT1724_REVO_I2C_DATA;
snd_ice1712_gpio_write_bits(ice,
VT1724_REVO_I2C_DATA |
VT1724_REVO_I2C_CLOCK, val);
udelay(5);
}
static int revo_i2c_getdata(struct snd_i2c_bus *bus, int ack)
{
struct snd_ice1712 *ice = bus->private_data;
int bit;
if (ack)
udelay(5);
bit = snd_ice1712_gpio_read_bits(ice, VT1724_REVO_I2C_DATA) ? 1 : 0;
return bit;
}
static struct snd_i2c_bit_ops revo51_bit_ops = {
.start = revo_i2c_start,
.stop = revo_i2c_stop,
.direction = revo_i2c_direction,
.setlines = revo_i2c_setlines,
.getdata = revo_i2c_getdata,
};
static int revo51_i2c_init(struct snd_ice1712 *ice,
struct snd_pt2258 *pt)
{
struct revo51_spec *spec;
int err;
spec = kzalloc(sizeof(*spec), GFP_KERNEL);
if (!spec)
return -ENOMEM;
ice->spec = spec;
/* create the I2C bus */
err = snd_i2c_bus_create(ice->card, "ICE1724 GPIO6", NULL, &ice->i2c);
if (err < 0)
return err;
ice->i2c->private_data = ice;
ice->i2c->hw_ops.bit = &revo51_bit_ops;
/* create the I2C device */
err = snd_i2c_device_create(ice->i2c, "PT2258", 0x40, &spec->dev);
if (err < 0)
return err;
pt->card = ice->card;
pt->i2c_bus = ice->i2c;
pt->i2c_dev = spec->dev;
spec->pt2258 = pt;
snd_pt2258_reset(pt);
return 0;
}
/*
* initialize the chips on M-Audio Revolution cards
*/
#define AK_DAC(xname,xch) { .name = xname, .num_channels = xch }
static const struct snd_akm4xxx_dac_channel revo71_front[] = {
{
.name = "PCM Playback Volume",
.num_channels = 2,
/* front channels DAC supports muting */
.switch_name = "PCM Playback Switch",
},
};
static const struct snd_akm4xxx_dac_channel revo71_surround[] = {
AK_DAC("PCM Center Playback Volume", 1),
AK_DAC("PCM LFE Playback Volume", 1),
AK_DAC("PCM Side Playback Volume", 2),
AK_DAC("PCM Rear Playback Volume", 2),
};
static const struct snd_akm4xxx_dac_channel revo51_dac[] = {
AK_DAC("PCM Playback Volume", 2),
AK_DAC("PCM Center Playback Volume", 1),
AK_DAC("PCM LFE Playback Volume", 1),
AK_DAC("PCM Rear Playback Volume", 2),
AK_DAC("PCM Headphone Volume", 2),
};
static const char *revo51_adc_input_names[] = {
"Mic",
"Line",
"CD",
NULL
};
static const struct snd_akm4xxx_adc_channel revo51_adc[] = {
{
.name = "PCM Capture Volume",
.switch_name = "PCM Capture Switch",
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