linux_dsm_epyc7002/sound/ppc/tumbler.c
Benjamin Herrenschmidt 7bbd827750 [PATCH] ppc64: very basic desktop g5 sound support
This patch hacks the current PowerMac Alsa driver to add some basic support
of analog sound output to some desktop G5s.  It has severe limitations
though:

 - Only 44100Khz 16 bits
 - Only work on G5 models using a TAS3004 analog code, that is early
   single CPU desktops and all dual CPU desktops at this date, but none
   of the more recent ones like iMac G5.
 - It does analog only, no digital/SPDIF support at all, no native
   AC3 support

Better support would require a complete rewrite of the driver (which I am
working on, but don't hold your breath), to properly support the diversity
of apple sound HW setup, including dual codecs, several i2s busses, all the
new codecs used in the new machines, proper clock switching with digital,
etc etc etc...

This patch applies on top of the other PowerMac sound patches I posted in
the past couple of days (new powerbook support and sleep fixes).  

Note: This is a FAQ entry for PowerMac sound support with TI codecs: They
have a feature called "DRC" which is automatically enabled for the internal
speaker (at least when auto mute control is enabled) which will cause your
sound to fade out to nothing after half a second of playback if you don't
set a proper "DRC Range" in the mixer.  So if you have a problem like that,
check alsamixer and raise your DRC Range to something reasonable.

Note2: This patch will also add auto-mute of the speaker when line-out jack
is used on some earlier desktop G4s (and on the G5) in addition to the
headphone jack.  If that behaviour isn't what you want, just disable
auto-muting and use the manual mute controls in alsamixer.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16 15:24:32 -07:00

1395 lines
36 KiB
C

/*
* PMac Tumbler/Snapper lowlevel functions
*
* Copyright (c) by Takashi Iwai <tiwai@suse.de>
*
* 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
*
* Rene Rebe <rene.rebe@gmx.net>:
* * update from shadow registers on wakeup and headphone plug
* * automatically toggle DRC on headphone plug
*
*/
#include <sound/driver.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/i2c.h>
#include <linux/i2c-dev.h>
#include <linux/kmod.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <sound/core.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/machdep.h>
#include <asm/pmac_feature.h>
#include "pmac.h"
#include "tumbler_volume.h"
#undef DEBUG
#ifdef DEBUG
#define DBG(fmt...) printk(fmt)
#else
#define DBG(fmt...)
#endif
/* i2c address for tumbler */
#define TAS_I2C_ADDR 0x34
/* registers */
#define TAS_REG_MCS 0x01 /* main control */
#define TAS_REG_DRC 0x02
#define TAS_REG_VOL 0x04
#define TAS_REG_TREBLE 0x05
#define TAS_REG_BASS 0x06
#define TAS_REG_INPUT1 0x07
#define TAS_REG_INPUT2 0x08
/* tas3001c */
#define TAS_REG_PCM TAS_REG_INPUT1
/* tas3004 */
#define TAS_REG_LMIX TAS_REG_INPUT1
#define TAS_REG_RMIX TAS_REG_INPUT2
#define TAS_REG_MCS2 0x43 /* main control 2 */
#define TAS_REG_ACS 0x40 /* analog control */
/* mono volumes for tas3001c/tas3004 */
enum {
VOL_IDX_PCM_MONO, /* tas3001c only */
VOL_IDX_BASS, VOL_IDX_TREBLE,
VOL_IDX_LAST_MONO
};
/* stereo volumes for tas3004 */
enum {
VOL_IDX_PCM, VOL_IDX_PCM2, VOL_IDX_ADC,
VOL_IDX_LAST_MIX
};
typedef struct pmac_gpio {
unsigned int addr;
u8 active_val;
u8 inactive_val;
u8 active_state;
} pmac_gpio_t;
typedef struct pmac_tumbler_t {
pmac_keywest_t i2c;
pmac_gpio_t audio_reset;
pmac_gpio_t amp_mute;
pmac_gpio_t line_mute;
pmac_gpio_t line_detect;
pmac_gpio_t hp_mute;
pmac_gpio_t hp_detect;
int headphone_irq;
int lineout_irq;
unsigned int master_vol[2];
unsigned int save_master_switch[2];
unsigned int master_switch[2];
unsigned int mono_vol[VOL_IDX_LAST_MONO];
unsigned int mix_vol[VOL_IDX_LAST_MIX][2]; /* stereo volumes for tas3004 */
int drc_range;
int drc_enable;
int capture_source;
int anded_reset;
int auto_mute_notify;
int reset_on_sleep;
u8 acs;
} pmac_tumbler_t;
/*
*/
static int send_init_client(pmac_keywest_t *i2c, unsigned int *regs)
{
while (*regs > 0) {
int err, count = 10;
do {
err = i2c_smbus_write_byte_data(i2c->client,
regs[0], regs[1]);
if (err >= 0)
break;
DBG("(W) i2c error %d\n", err);
mdelay(10);
} while (count--);
if (err < 0)
return -ENXIO;
regs += 2;
}
return 0;
}
static int tumbler_init_client(pmac_keywest_t *i2c)
{
static unsigned int regs[] = {
/* normal operation, SCLK=64fps, i2s output, i2s input, 16bit width */
TAS_REG_MCS, (1<<6)|(2<<4)|(2<<2)|0,
0, /* terminator */
};
DBG("(I) tumbler init client\n");
return send_init_client(i2c, regs);
}
static int snapper_init_client(pmac_keywest_t *i2c)
{
static unsigned int regs[] = {
/* normal operation, SCLK=64fps, i2s output, 16bit width */
TAS_REG_MCS, (1<<6)|(2<<4)|0,
/* normal operation, all-pass mode */
TAS_REG_MCS2, (1<<1),
/* normal output, no deemphasis, A input, power-up, line-in */
TAS_REG_ACS, 0,
0, /* terminator */
};
DBG("(I) snapper init client\n");
return send_init_client(i2c, regs);
}
/*
* gpio access
*/
#define do_gpio_write(gp, val) \
pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL, (gp)->addr, val)
#define do_gpio_read(gp) \
pmac_call_feature(PMAC_FTR_READ_GPIO, NULL, (gp)->addr, 0)
#define tumbler_gpio_free(gp) /* NOP */
static void write_audio_gpio(pmac_gpio_t *gp, int active)
{
if (! gp->addr)
return;
active = active ? gp->active_val : gp->inactive_val;
do_gpio_write(gp, active);
DBG("(I) gpio %x write %d\n", gp->addr, active);
}
static int read_audio_gpio(pmac_gpio_t *gp)
{
int ret;
if (! gp->addr)
return 0;
ret = ((do_gpio_read(gp) & 0x02) !=0);
return ret == gp->active_state;
}
/*
* update master volume
*/
static int tumbler_set_master_volume(pmac_tumbler_t *mix)
{
unsigned char block[6];
unsigned int left_vol, right_vol;
if (! mix->i2c.client)
return -ENODEV;
if (! mix->master_switch[0])
left_vol = 0;
else {
left_vol = mix->master_vol[0];
if (left_vol >= ARRAY_SIZE(master_volume_table))
left_vol = ARRAY_SIZE(master_volume_table) - 1;
left_vol = master_volume_table[left_vol];
}
if (! mix->master_switch[1])
right_vol = 0;
else {
right_vol = mix->master_vol[1];
if (right_vol >= ARRAY_SIZE(master_volume_table))
right_vol = ARRAY_SIZE(master_volume_table) - 1;
right_vol = master_volume_table[right_vol];
}
block[0] = (left_vol >> 16) & 0xff;
block[1] = (left_vol >> 8) & 0xff;
block[2] = (left_vol >> 0) & 0xff;
block[3] = (right_vol >> 16) & 0xff;
block[4] = (right_vol >> 8) & 0xff;
block[5] = (right_vol >> 0) & 0xff;
if (i2c_smbus_write_block_data(mix->i2c.client, TAS_REG_VOL,
6, block) < 0) {
snd_printk("failed to set volume \n");
return -EINVAL;
}
return 0;
}
/* output volume */
static int tumbler_info_master_volume(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
{
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = 2;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = ARRAY_SIZE(master_volume_table) - 1;
return 0;
}
static int tumbler_get_master_volume(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
pmac_t *chip = snd_kcontrol_chip(kcontrol);
pmac_tumbler_t *mix = chip->mixer_data;
snd_assert(mix, return -ENODEV);
ucontrol->value.integer.value[0] = mix->master_vol[0];
ucontrol->value.integer.value[1] = mix->master_vol[1];
return 0;
}
static int tumbler_put_master_volume(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
pmac_t *chip = snd_kcontrol_chip(kcontrol);
pmac_tumbler_t *mix = chip->mixer_data;
int change;
snd_assert(mix, return -ENODEV);
change = mix->master_vol[0] != ucontrol->value.integer.value[0] ||
mix->master_vol[1] != ucontrol->value.integer.value[1];
if (change) {
mix->master_vol[0] = ucontrol->value.integer.value[0];
mix->master_vol[1] = ucontrol->value.integer.value[1];
tumbler_set_master_volume(mix);
}
return change;
}
/* output switch */
static int tumbler_get_master_switch(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
pmac_t *chip = snd_kcontrol_chip(kcontrol);
pmac_tumbler_t *mix = chip->mixer_data;
snd_assert(mix, return -ENODEV);
ucontrol->value.integer.value[0] = mix->master_switch[0];
ucontrol->value.integer.value[1] = mix->master_switch[1];
return 0;
}
static int tumbler_put_master_switch(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
pmac_t *chip = snd_kcontrol_chip(kcontrol);
pmac_tumbler_t *mix = chip->mixer_data;
int change;
snd_assert(mix, return -ENODEV);
change = mix->master_switch[0] != ucontrol->value.integer.value[0] ||
mix->master_switch[1] != ucontrol->value.integer.value[1];
if (change) {
mix->master_switch[0] = !!ucontrol->value.integer.value[0];
mix->master_switch[1] = !!ucontrol->value.integer.value[1];
tumbler_set_master_volume(mix);
}
return change;
}
/*
* TAS3001c dynamic range compression
*/
#define TAS3001_DRC_MAX 0x5f
static int tumbler_set_drc(pmac_tumbler_t *mix)
{
unsigned char val[2];
if (! mix->i2c.client)
return -ENODEV;
if (mix->drc_enable) {
val[0] = 0xc1; /* enable, 3:1 compression */
if (mix->drc_range > TAS3001_DRC_MAX)
val[1] = 0xf0;
else if (mix->drc_range < 0)
val[1] = 0x91;
else
val[1] = mix->drc_range + 0x91;
} else {
val[0] = 0;
val[1] = 0;
}
if (i2c_smbus_write_block_data(mix->i2c.client, TAS_REG_DRC,
2, val) < 0) {
snd_printk("failed to set DRC\n");
return -EINVAL;
}
return 0;
}
/*
* TAS3004
*/
#define TAS3004_DRC_MAX 0xef
static int snapper_set_drc(pmac_tumbler_t *mix)
{
unsigned char val[6];
if (! mix->i2c.client)
return -ENODEV;
if (mix->drc_enable)
val[0] = 0x50; /* 3:1 above threshold */
else
val[0] = 0x51; /* disabled */
val[1] = 0x02; /* 1:1 below threshold */
if (mix->drc_range > 0xef)
val[2] = 0xef;
else if (mix->drc_range < 0)
val[2] = 0x00;
else
val[2] = mix->drc_range;
val[3] = 0xb0;
val[4] = 0x60;
val[5] = 0xa0;
if (i2c_smbus_write_block_data(mix->i2c.client, TAS_REG_DRC,
6, val) < 0) {
snd_printk("failed to set DRC\n");
return -EINVAL;
}
return 0;
}
static int tumbler_info_drc_value(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
{
pmac_t *chip = snd_kcontrol_chip(kcontrol);
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = 1;
uinfo->value.integer.min = 0;
uinfo->value.integer.max =
chip->model == PMAC_TUMBLER ? TAS3001_DRC_MAX : TAS3004_DRC_MAX;
return 0;
}
static int tumbler_get_drc_value(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
pmac_t *chip = snd_kcontrol_chip(kcontrol);
pmac_tumbler_t *mix;
if (! (mix = chip->mixer_data))
return -ENODEV;
ucontrol->value.integer.value[0] = mix->drc_range;
return 0;
}
static int tumbler_put_drc_value(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
pmac_t *chip = snd_kcontrol_chip(kcontrol);
pmac_tumbler_t *mix;
int change;
if (! (mix = chip->mixer_data))
return -ENODEV;
change = mix->drc_range != ucontrol->value.integer.value[0];
if (change) {
mix->drc_range = ucontrol->value.integer.value[0];
if (chip->model == PMAC_TUMBLER)
tumbler_set_drc(mix);
else
snapper_set_drc(mix);
}
return change;
}
static int tumbler_get_drc_switch(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
pmac_t *chip = snd_kcontrol_chip(kcontrol);
pmac_tumbler_t *mix;
if (! (mix = chip->mixer_data))
return -ENODEV;
ucontrol->value.integer.value[0] = mix->drc_enable;
return 0;
}
static int tumbler_put_drc_switch(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
pmac_t *chip = snd_kcontrol_chip(kcontrol);
pmac_tumbler_t *mix;
int change;
if (! (mix = chip->mixer_data))
return -ENODEV;
change = mix->drc_enable != ucontrol->value.integer.value[0];
if (change) {
mix->drc_enable = !!ucontrol->value.integer.value[0];
if (chip->model == PMAC_TUMBLER)
tumbler_set_drc(mix);
else
snapper_set_drc(mix);
}
return change;
}
/*
* mono volumes
*/
struct tumbler_mono_vol {
int index;
int reg;
int bytes;
unsigned int max;
unsigned int *table;
};
static int tumbler_set_mono_volume(pmac_tumbler_t *mix, struct tumbler_mono_vol *info)
{
unsigned char block[4];
unsigned int vol;
int i;
if (! mix->i2c.client)
return -ENODEV;
vol = mix->mono_vol[info->index];
if (vol >= info->max)
vol = info->max - 1;
vol = info->table[vol];
for (i = 0; i < info->bytes; i++)
block[i] = (vol >> ((info->bytes - i - 1) * 8)) & 0xff;
if (i2c_smbus_write_block_data(mix->i2c.client, info->reg,
info->bytes, block) < 0) {
snd_printk("failed to set mono volume %d\n", info->index);
return -EINVAL;
}
return 0;
}
static int tumbler_info_mono(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
{
struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = 1;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = info->max - 1;
return 0;
}
static int tumbler_get_mono(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
pmac_t *chip = snd_kcontrol_chip(kcontrol);
pmac_tumbler_t *mix;
if (! (mix = chip->mixer_data))
return -ENODEV;
ucontrol->value.integer.value[0] = mix->mono_vol[info->index];
return 0;
}
static int tumbler_put_mono(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
pmac_t *chip = snd_kcontrol_chip(kcontrol);
pmac_tumbler_t *mix;
int change;
if (! (mix = chip->mixer_data))
return -ENODEV;
change = mix->mono_vol[info->index] != ucontrol->value.integer.value[0];
if (change) {
mix->mono_vol[info->index] = ucontrol->value.integer.value[0];
tumbler_set_mono_volume(mix, info);
}
return change;
}
/* TAS3001c mono volumes */
static struct tumbler_mono_vol tumbler_pcm_vol_info = {
.index = VOL_IDX_PCM_MONO,
.reg = TAS_REG_PCM,
.bytes = 3,
.max = ARRAY_SIZE(mixer_volume_table),
.table = mixer_volume_table,
};
static struct tumbler_mono_vol tumbler_bass_vol_info = {
.index = VOL_IDX_BASS,
.reg = TAS_REG_BASS,
.bytes = 1,
.max = ARRAY_SIZE(bass_volume_table),
.table = bass_volume_table,
};
static struct tumbler_mono_vol tumbler_treble_vol_info = {
.index = VOL_IDX_TREBLE,
.reg = TAS_REG_TREBLE,
.bytes = 1,
.max = ARRAY_SIZE(treble_volume_table),
.table = treble_volume_table,
};
/* TAS3004 mono volumes */
static struct tumbler_mono_vol snapper_bass_vol_info = {
.index = VOL_IDX_BASS,
.reg = TAS_REG_BASS,
.bytes = 1,
.max = ARRAY_SIZE(snapper_bass_volume_table),
.table = snapper_bass_volume_table,
};
static struct tumbler_mono_vol snapper_treble_vol_info = {
.index = VOL_IDX_TREBLE,
.reg = TAS_REG_TREBLE,
.bytes = 1,
.max = ARRAY_SIZE(snapper_treble_volume_table),
.table = snapper_treble_volume_table,
};
#define DEFINE_MONO(xname,type) { \
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
.name = xname, \
.info = tumbler_info_mono, \
.get = tumbler_get_mono, \
.put = tumbler_put_mono, \
.private_value = (unsigned long)(&tumbler_##type##_vol_info), \
}
#define DEFINE_SNAPPER_MONO(xname,type) { \
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
.name = xname, \
.info = tumbler_info_mono, \
.get = tumbler_get_mono, \
.put = tumbler_put_mono, \
.private_value = (unsigned long)(&snapper_##type##_vol_info), \
}
/*
* snapper mixer volumes
*/
static int snapper_set_mix_vol1(pmac_tumbler_t *mix, int idx, int ch, int reg)
{
int i, j, vol;
unsigned char block[9];
vol = mix->mix_vol[idx][ch];
if (vol >= ARRAY_SIZE(mixer_volume_table)) {
vol = ARRAY_SIZE(mixer_volume_table) - 1;
mix->mix_vol[idx][ch] = vol;
}
for (i = 0; i < 3; i++) {
vol = mix->mix_vol[i][ch];
vol = mixer_volume_table[vol];
for (j = 0; j < 3; j++)
block[i * 3 + j] = (vol >> ((2 - j) * 8)) & 0xff;
}
if (i2c_smbus_write_block_data(mix->i2c.client, reg, 9, block) < 0) {
snd_printk("failed to set mono volume %d\n", reg);
return -EINVAL;
}
return 0;
}
static int snapper_set_mix_vol(pmac_tumbler_t *mix, int idx)
{
if (! mix->i2c.client)
return -ENODEV;
if (snapper_set_mix_vol1(mix, idx, 0, TAS_REG_LMIX) < 0 ||
snapper_set_mix_vol1(mix, idx, 1, TAS_REG_RMIX) < 0)
return -EINVAL;
return 0;
}
static int snapper_info_mix(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
{
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = 2;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = ARRAY_SIZE(mixer_volume_table) - 1;
return 0;
}
static int snapper_get_mix(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
int idx = (int)kcontrol->private_value;
pmac_t *chip = snd_kcontrol_chip(kcontrol);
pmac_tumbler_t *mix;
if (! (mix = chip->mixer_data))
return -ENODEV;
ucontrol->value.integer.value[0] = mix->mix_vol[idx][0];
ucontrol->value.integer.value[1] = mix->mix_vol[idx][1];
return 0;
}
static int snapper_put_mix(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
int idx = (int)kcontrol->private_value;
pmac_t *chip = snd_kcontrol_chip(kcontrol);
pmac_tumbler_t *mix;
int change;
if (! (mix = chip->mixer_data))
return -ENODEV;
change = mix->mix_vol[idx][0] != ucontrol->value.integer.value[0] ||
mix->mix_vol[idx][1] != ucontrol->value.integer.value[1];
if (change) {
mix->mix_vol[idx][0] = ucontrol->value.integer.value[0];
mix->mix_vol[idx][1] = ucontrol->value.integer.value[1];
snapper_set_mix_vol(mix, idx);
}
return change;
}
/*
* mute switches. FIXME: Turn that into software mute when both outputs are muted
* to avoid codec reset on ibook M7
*/
enum { TUMBLER_MUTE_HP, TUMBLER_MUTE_AMP, TUMBLER_MUTE_LINE };
static int tumbler_get_mute_switch(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
pmac_t *chip = snd_kcontrol_chip(kcontrol);
pmac_tumbler_t *mix;
pmac_gpio_t *gp;
if (! (mix = chip->mixer_data))
return -ENODEV;
switch(kcontrol->private_value) {
case TUMBLER_MUTE_HP:
gp = &mix->hp_mute; break;
case TUMBLER_MUTE_AMP:
gp = &mix->amp_mute; break;
case TUMBLER_MUTE_LINE:
gp = &mix->line_mute; break;
default:
gp = NULL;
}
if (gp == NULL)
return -EINVAL;
ucontrol->value.integer.value[0] = ! read_audio_gpio(gp);
return 0;
}
static int tumbler_put_mute_switch(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
pmac_t *chip = snd_kcontrol_chip(kcontrol);
pmac_tumbler_t *mix;
pmac_gpio_t *gp;
int val;
#ifdef PMAC_SUPPORT_AUTOMUTE
if (chip->update_automute && chip->auto_mute)
return 0; /* don't touch in the auto-mute mode */
#endif
if (! (mix = chip->mixer_data))
return -ENODEV;
switch(kcontrol->private_value) {
case TUMBLER_MUTE_HP:
gp = &mix->hp_mute; break;
case TUMBLER_MUTE_AMP:
gp = &mix->amp_mute; break;
case TUMBLER_MUTE_LINE:
gp = &mix->line_mute; break;
default:
gp = NULL;
}
if (gp == NULL)
return -EINVAL;
val = ! read_audio_gpio(gp);
if (val != ucontrol->value.integer.value[0]) {
write_audio_gpio(gp, ! ucontrol->value.integer.value[0]);
return 1;
}
return 0;
}
static int snapper_set_capture_source(pmac_tumbler_t *mix)
{
if (! mix->i2c.client)
return -ENODEV;
if (mix->capture_source)
mix->acs = mix->acs |= 2;
else
mix->acs &= ~2;
return i2c_smbus_write_byte_data(mix->i2c.client, TAS_REG_ACS, mix->acs);
}
static int snapper_info_capture_source(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
{
static char *texts[2] = {
"Line", "Mic"
};
uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
uinfo->count = 1;
uinfo->value.enumerated.items = 2;
if (uinfo->value.enumerated.item > 1)
uinfo->value.enumerated.item = 1;
strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
return 0;
}
static int snapper_get_capture_source(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
pmac_t *chip = snd_kcontrol_chip(kcontrol);
pmac_tumbler_t *mix = chip->mixer_data;
snd_assert(mix, return -ENODEV);
ucontrol->value.integer.value[0] = mix->capture_source;
return 0;
}
static int snapper_put_capture_source(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
pmac_t *chip = snd_kcontrol_chip(kcontrol);
pmac_tumbler_t *mix = chip->mixer_data;
int change;
snd_assert(mix, return -ENODEV);
change = ucontrol->value.integer.value[0] != mix->capture_source;
if (change) {
mix->capture_source = !!ucontrol->value.integer.value[0];
snapper_set_capture_source(mix);
}
return change;
}
#define DEFINE_SNAPPER_MIX(xname,idx,ofs) { \
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
.name = xname, \
.info = snapper_info_mix, \
.get = snapper_get_mix, \
.put = snapper_put_mix, \
.index = idx,\
.private_value = ofs, \
}
/*
*/
static snd_kcontrol_new_t tumbler_mixers[] __initdata = {
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Master Playback Volume",
.info = tumbler_info_master_volume,
.get = tumbler_get_master_volume,
.put = tumbler_put_master_volume
},
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Master Playback Switch",
.info = snd_pmac_boolean_stereo_info,
.get = tumbler_get_master_switch,
.put = tumbler_put_master_switch
},
DEFINE_MONO("Tone Control - Bass", bass),
DEFINE_MONO("Tone Control - Treble", treble),
DEFINE_MONO("PCM Playback Volume", pcm),
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "DRC Range",
.info = tumbler_info_drc_value,
.get = tumbler_get_drc_value,
.put = tumbler_put_drc_value
},
};
static snd_kcontrol_new_t snapper_mixers[] __initdata = {
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Master Playback Volume",
.info = tumbler_info_master_volume,
.get = tumbler_get_master_volume,
.put = tumbler_put_master_volume
},
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Master Playback Switch",
.info = snd_pmac_boolean_stereo_info,
.get = tumbler_get_master_switch,
.put = tumbler_put_master_switch
},
DEFINE_SNAPPER_MIX("PCM Playback Volume", 0, VOL_IDX_PCM),
DEFINE_SNAPPER_MIX("PCM Playback Volume", 1, VOL_IDX_PCM2),
DEFINE_SNAPPER_MIX("Monitor Mix Volume", 0, VOL_IDX_ADC),
DEFINE_SNAPPER_MONO("Tone Control - Bass", bass),
DEFINE_SNAPPER_MONO("Tone Control - Treble", treble),
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "DRC Range",
.info = tumbler_info_drc_value,
.get = tumbler_get_drc_value,
.put = tumbler_put_drc_value
},
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Input Source", /* FIXME: "Capture Source" doesn't work properly */
.info = snapper_info_capture_source,
.get = snapper_get_capture_source,
.put = snapper_put_capture_source
},
};
static snd_kcontrol_new_t tumbler_hp_sw __initdata = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Headphone Playback Switch",
.info = snd_pmac_boolean_mono_info,
.get = tumbler_get_mute_switch,
.put = tumbler_put_mute_switch,
.private_value = TUMBLER_MUTE_HP,
};
static snd_kcontrol_new_t tumbler_speaker_sw __initdata = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "PC Speaker Playback Switch",
.info = snd_pmac_boolean_mono_info,
.get = tumbler_get_mute_switch,
.put = tumbler_put_mute_switch,
.private_value = TUMBLER_MUTE_AMP,
};
static snd_kcontrol_new_t tumbler_lineout_sw __initdata = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Line Out Playback Switch",
.info = snd_pmac_boolean_mono_info,
.get = tumbler_get_mute_switch,
.put = tumbler_put_mute_switch,
.private_value = TUMBLER_MUTE_LINE,
};
static snd_kcontrol_new_t tumbler_drc_sw __initdata = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "DRC Switch",
.info = snd_pmac_boolean_mono_info,
.get = tumbler_get_drc_switch,
.put = tumbler_put_drc_switch
};
#ifdef PMAC_SUPPORT_AUTOMUTE
/*
* auto-mute stuffs
*/
static int tumbler_detect_headphone(pmac_t *chip)
{
pmac_tumbler_t *mix = chip->mixer_data;
int detect = 0;
if (mix->hp_detect.addr)
detect |= read_audio_gpio(&mix->hp_detect);
return detect;
}
static int tumbler_detect_lineout(pmac_t *chip)
{
pmac_tumbler_t *mix = chip->mixer_data;
int detect = 0;
if (mix->line_detect.addr)
detect |= read_audio_gpio(&mix->line_detect);
return detect;
}
static void check_mute(pmac_t *chip, pmac_gpio_t *gp, int val, int do_notify, snd_kcontrol_t *sw)
{
//pmac_tumbler_t *mix = chip->mixer_data;
if (val != read_audio_gpio(gp)) {
write_audio_gpio(gp, val);
if (do_notify)
snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, &sw->id);
}
}
static struct work_struct device_change;
static void device_change_handler(void *self)
{
pmac_t *chip = (pmac_t*) self;
pmac_tumbler_t *mix;
int headphone, lineout;
if (!chip)
return;
mix = chip->mixer_data;
snd_assert(mix, return);
headphone = tumbler_detect_headphone(chip);
lineout = tumbler_detect_lineout(chip);
DBG("headphone: %d, lineout: %d\n", headphone, lineout);
if (headphone || lineout) {
/* unmute headphone/lineout & mute speaker */
if (headphone)
check_mute(chip, &mix->hp_mute, 0, mix->auto_mute_notify,
chip->master_sw_ctl);
if (lineout && mix->line_mute.addr != 0)
check_mute(chip, &mix->line_mute, 0, mix->auto_mute_notify,
chip->lineout_sw_ctl);
if (mix->anded_reset)
big_mdelay(10);
check_mute(chip, &mix->amp_mute, 1, mix->auto_mute_notify,
chip->speaker_sw_ctl);
mix->drc_enable = 0;
} else {
/* unmute speaker, mute others */
check_mute(chip, &mix->amp_mute, 0, mix->auto_mute_notify,
chip->speaker_sw_ctl);
if (mix->anded_reset)
big_mdelay(10);
check_mute(chip, &mix->hp_mute, 1, mix->auto_mute_notify,
chip->master_sw_ctl);
if (mix->line_mute.addr != 0)
check_mute(chip, &mix->line_mute, 1, mix->auto_mute_notify,
chip->lineout_sw_ctl);
mix->drc_enable = 1;
}
if (mix->auto_mute_notify) {
snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
&chip->hp_detect_ctl->id);
snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
&chip->drc_sw_ctl->id);
}
/* first set the DRC so the speaker do not explode -ReneR */
if (chip->model == PMAC_TUMBLER)
tumbler_set_drc(mix);
else
snapper_set_drc(mix);
/* reset the master volume so the correct amplification is applied */
tumbler_set_master_volume(mix);
}
static void tumbler_update_automute(pmac_t *chip, int do_notify)
{
if (chip->auto_mute) {
pmac_tumbler_t *mix;
mix = chip->mixer_data;
snd_assert(mix, return);
mix->auto_mute_notify = do_notify;
schedule_work(&device_change);
}
}
#endif /* PMAC_SUPPORT_AUTOMUTE */
/* interrupt - headphone plug changed */
static irqreturn_t headphone_intr(int irq, void *devid, struct pt_regs *regs)
{
pmac_t *chip = devid;
if (chip->update_automute && chip->initialized) {
chip->update_automute(chip, 1);
return IRQ_HANDLED;
}
return IRQ_NONE;
}
/* look for audio-gpio device */
static struct device_node *find_audio_device(const char *name)
{
struct device_node *np;
if (! (np = find_devices("gpio")))
return NULL;
for (np = np->child; np; np = np->sibling) {
char *property = get_property(np, "audio-gpio", NULL);
if (property && strcmp(property, name) == 0)
return np;
}
return NULL;
}
/* look for audio-gpio device */
static struct device_node *find_compatible_audio_device(const char *name)
{
struct device_node *np;
if (! (np = find_devices("gpio")))
return NULL;
for (np = np->child; np; np = np->sibling) {
if (device_is_compatible(np, name))
return np;
}
return NULL;
}
/* find an audio device and get its address */
static long tumbler_find_device(const char *device, const char *platform, pmac_gpio_t *gp, int is_compatible)
{
struct device_node *node;
u32 *base, addr;
if (is_compatible)
node = find_compatible_audio_device(device);
else
node = find_audio_device(device);
if (! node) {
DBG("(W) cannot find audio device %s !\n", device);
snd_printdd("cannot find device %s\n", device);
return -ENODEV;
}
base = (u32 *)get_property(node, "AAPL,address", NULL);
if (! base) {
base = (u32 *)get_property(node, "reg", NULL);
if (!base) {
DBG("(E) cannot find address for device %s !\n", device);
snd_printd("cannot find address for device %s\n", device);
return -ENODEV;
}
addr = *base;
if (addr < 0x50)
addr += 0x50;
} else
addr = *base;
gp->addr = addr & 0x0000ffff;
/* Try to find the active state, default to 0 ! */
base = (u32 *)get_property(node, "audio-gpio-active-state", NULL);
if (base) {
gp->active_state = *base;
gp->active_val = (*base) ? 0x5 : 0x4;
gp->inactive_val = (*base) ? 0x4 : 0x5;
} else {
u32 *prop = NULL;
gp->active_state = 0;
gp->active_val = 0x4;
gp->inactive_val = 0x5;
/* Here are some crude hacks to extract the GPIO polarity and
* open collector informations out of the do-platform script
* as we don't yet have an interpreter for these things
*/
if (platform)
prop = (u32 *)get_property(node, platform, NULL);
if (prop) {
if (prop[3] == 0x9 && prop[4] == 0x9) {
gp->active_val = 0xd;
gp->inactive_val = 0xc;
}
if (prop[3] == 0x1 && prop[4] == 0x1) {
gp->active_val = 0x5;
gp->inactive_val = 0x4;
}
}
}
DBG("(I) GPIO device %s found, offset: %x, active state: %d !\n",
device, gp->addr, gp->active_state);
return (node->n_intrs > 0) ? node->intrs[0].line : 0;
}
/* reset audio */
static void tumbler_reset_audio(pmac_t *chip)
{
pmac_tumbler_t *mix = chip->mixer_data;
if (mix->anded_reset) {
DBG("(I) codec anded reset !\n");
write_audio_gpio(&mix->hp_mute, 0);
write_audio_gpio(&mix->amp_mute, 0);
big_mdelay(200);
write_audio_gpio(&mix->hp_mute, 1);
write_audio_gpio(&mix->amp_mute, 1);
big_mdelay(100);
write_audio_gpio(&mix->hp_mute, 0);
write_audio_gpio(&mix->amp_mute, 0);
big_mdelay(100);
} else {
DBG("(I) codec normal reset !\n");
write_audio_gpio(&mix->audio_reset, 0);
big_mdelay(200);
write_audio_gpio(&mix->audio_reset, 1);
big_mdelay(100);
write_audio_gpio(&mix->audio_reset, 0);
big_mdelay(100);
}
}
#ifdef CONFIG_PMAC_PBOOK
/* suspend mixer */
static void tumbler_suspend(pmac_t *chip)
{
pmac_tumbler_t *mix = chip->mixer_data;
if (mix->headphone_irq >= 0)
disable_irq(mix->headphone_irq);
if (mix->lineout_irq >= 0)
disable_irq(mix->lineout_irq);
mix->save_master_switch[0] = mix->master_switch[0];
mix->save_master_switch[1] = mix->master_switch[1];
mix->master_switch[0] = mix->master_switch[1] = 0;
tumbler_set_master_volume(mix);
if (!mix->anded_reset) {
write_audio_gpio(&mix->amp_mute, 1);
write_audio_gpio(&mix->hp_mute, 1);
}
if (chip->model == PMAC_SNAPPER) {
mix->acs |= 1;
i2c_smbus_write_byte_data(mix->i2c.client, TAS_REG_ACS, mix->acs);
}
if (mix->anded_reset) {
write_audio_gpio(&mix->amp_mute, 1);
write_audio_gpio(&mix->hp_mute, 1);
} else
write_audio_gpio(&mix->audio_reset, 1);
}
/* resume mixer */
static void tumbler_resume(pmac_t *chip)
{
pmac_tumbler_t *mix = chip->mixer_data;
snd_assert(mix, return);
mix->acs &= ~1;
mix->master_switch[0] = mix->save_master_switch[0];
mix->master_switch[1] = mix->save_master_switch[1];
tumbler_reset_audio(chip);
if (mix->i2c.client && mix->i2c.init_client) {
if (mix->i2c.init_client(&mix->i2c) < 0)
printk(KERN_ERR "tumbler_init_client error\n");
} else
printk(KERN_ERR "tumbler: i2c is not initialized\n");
if (chip->model == PMAC_TUMBLER) {
tumbler_set_mono_volume(mix, &tumbler_pcm_vol_info);
tumbler_set_mono_volume(mix, &tumbler_bass_vol_info);
tumbler_set_mono_volume(mix, &tumbler_treble_vol_info);
tumbler_set_drc(mix);
} else {
snapper_set_mix_vol(mix, VOL_IDX_PCM);
snapper_set_mix_vol(mix, VOL_IDX_PCM2);
snapper_set_mix_vol(mix, VOL_IDX_ADC);
tumbler_set_mono_volume(mix, &snapper_bass_vol_info);
tumbler_set_mono_volume(mix, &snapper_treble_vol_info);
snapper_set_drc(mix);
snapper_set_capture_source(mix);
}
tumbler_set_master_volume(mix);
if (chip->update_automute)
chip->update_automute(chip, 0);
if (mix->headphone_irq >= 0)
enable_irq(mix->headphone_irq);
if (mix->lineout_irq >= 0)
enable_irq(mix->lineout_irq);
}
#endif
/* initialize tumbler */
static int __init tumbler_init(pmac_t *chip)
{
int irq;
pmac_tumbler_t *mix = chip->mixer_data;
snd_assert(mix, return -EINVAL);
if (tumbler_find_device("audio-hw-reset",
"platform-do-hw-reset",
&mix->audio_reset, 0) < 0)
tumbler_find_device("hw-reset",
"platform-do-hw-reset",
&mix->audio_reset, 1);
if (tumbler_find_device("amp-mute",
"platform-do-amp-mute",
&mix->amp_mute, 0) < 0)
tumbler_find_device("amp-mute",
"platform-do-amp-mute",
&mix->amp_mute, 1);
if (tumbler_find_device("headphone-mute",
"platform-do-headphone-mute",
&mix->hp_mute, 0) < 0)
tumbler_find_device("headphone-mute",
"platform-do-headphone-mute",
&mix->hp_mute, 1);
if (tumbler_find_device("line-output-mute",
"platform-do-lineout-mute",
&mix->line_mute, 0) < 0)
tumbler_find_device("line-output-mute",
"platform-do-lineout-mute",
&mix->line_mute, 1);
irq = tumbler_find_device("headphone-detect",
NULL, &mix->hp_detect, 0);
if (irq < 0)
irq = tumbler_find_device("headphone-detect",
NULL, &mix->hp_detect, 1);
if (irq < 0)
irq = tumbler_find_device("keywest-gpio15",
NULL, &mix->hp_detect, 1);
mix->headphone_irq = irq;
irq = tumbler_find_device("line-output-detect",
NULL, &mix->line_detect, 0);
if (irq < 0)
irq = tumbler_find_device("line-output-detect",
NULL, &mix->line_detect, 1);
mix->lineout_irq = irq;
tumbler_reset_audio(chip);
return 0;
}
static void tumbler_cleanup(pmac_t *chip)
{
pmac_tumbler_t *mix = chip->mixer_data;
if (! mix)
return;
if (mix->headphone_irq >= 0)
free_irq(mix->headphone_irq, chip);
if (mix->lineout_irq >= 0)
free_irq(mix->lineout_irq, chip);
tumbler_gpio_free(&mix->audio_reset);
tumbler_gpio_free(&mix->amp_mute);
tumbler_gpio_free(&mix->hp_mute);
tumbler_gpio_free(&mix->hp_detect);
snd_pmac_keywest_cleanup(&mix->i2c);
kfree(mix);
chip->mixer_data = NULL;
}
/* exported */
int __init snd_pmac_tumbler_init(pmac_t *chip)
{
int i, err;
pmac_tumbler_t *mix;
u32 *paddr;
struct device_node *tas_node, *np;
char *chipname;
#ifdef CONFIG_KMOD
if (current->fs->root)
request_module("i2c-keywest");
#endif /* CONFIG_KMOD */
mix = kmalloc(sizeof(*mix), GFP_KERNEL);
if (! mix)
return -ENOMEM;
memset(mix, 0, sizeof(*mix));
mix->headphone_irq = -1;
chip->mixer_data = mix;
chip->mixer_free = tumbler_cleanup;
mix->anded_reset = 0;
mix->reset_on_sleep = 1;
for (np = chip->node->child; np; np = np->sibling) {
if (!strcmp(np->name, "sound")) {
if (get_property(np, "has-anded-reset", NULL))
mix->anded_reset = 1;
if (get_property(np, "layout-id", NULL))
mix->reset_on_sleep = 0;
break;
}
}
if ((err = tumbler_init(chip)) < 0)
return err;
/* set up TAS */
tas_node = find_devices("deq");
if (tas_node == NULL)
tas_node = find_devices("codec");
if (tas_node == NULL)
return -ENODEV;
paddr = (u32 *)get_property(tas_node, "i2c-address", NULL);
if (paddr == NULL)
paddr = (u32 *)get_property(tas_node, "reg", NULL);
if (paddr)
mix->i2c.addr = (*paddr) >> 1;
else
mix->i2c.addr = TAS_I2C_ADDR;
DBG("(I) TAS i2c address is: %x\n", mix->i2c.addr);
if (chip->model == PMAC_TUMBLER) {
mix->i2c.init_client = tumbler_init_client;
mix->i2c.name = "TAS3001c";
chipname = "Tumbler";
} else {
mix->i2c.init_client = snapper_init_client;
mix->i2c.name = "TAS3004";
chipname = "Snapper";
}
if ((err = snd_pmac_keywest_init(&mix->i2c)) < 0)
return err;
/*
* build mixers
*/
sprintf(chip->card->mixername, "PowerMac %s", chipname);
if (chip->model == PMAC_TUMBLER) {
for (i = 0; i < ARRAY_SIZE(tumbler_mixers); i++) {
if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&tumbler_mixers[i], chip))) < 0)
return err;
}
} else {
for (i = 0; i < ARRAY_SIZE(snapper_mixers); i++) {
if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snapper_mixers[i], chip))) < 0)
return err;
}
}
chip->master_sw_ctl = snd_ctl_new1(&tumbler_hp_sw, chip);
if ((err = snd_ctl_add(chip->card, chip->master_sw_ctl)) < 0)
return err;
chip->speaker_sw_ctl = snd_ctl_new1(&tumbler_speaker_sw, chip);
if ((err = snd_ctl_add(chip->card, chip->speaker_sw_ctl)) < 0)
return err;
if (mix->line_mute.addr != 0) {
chip->lineout_sw_ctl = snd_ctl_new1(&tumbler_lineout_sw, chip);
if ((err = snd_ctl_add(chip->card, chip->lineout_sw_ctl)) < 0)
return err;
}
chip->drc_sw_ctl = snd_ctl_new1(&tumbler_drc_sw, chip);
if ((err = snd_ctl_add(chip->card, chip->drc_sw_ctl)) < 0)
return err;
#ifdef CONFIG_PMAC_PBOOK
chip->suspend = tumbler_suspend;
chip->resume = tumbler_resume;
#endif
INIT_WORK(&device_change, device_change_handler, (void *)chip);
#ifdef PMAC_SUPPORT_AUTOMUTE
if ((mix->headphone_irq >=0 || mix->lineout_irq >= 0)
&& (err = snd_pmac_add_automute(chip)) < 0)
return err;
chip->detect_headphone = tumbler_detect_headphone;
chip->update_automute = tumbler_update_automute;
tumbler_update_automute(chip, 0); /* update the status only */
/* activate headphone status interrupts */
if (mix->headphone_irq >= 0) {
unsigned char val;
if ((err = request_irq(mix->headphone_irq, headphone_intr, 0,
"Sound Headphone Detection", chip)) < 0)
return 0;
/* activate headphone status interrupts */
val = do_gpio_read(&mix->hp_detect);
do_gpio_write(&mix->hp_detect, val | 0x80);
}
if (mix->lineout_irq >= 0) {
unsigned char val;
if ((err = request_irq(mix->lineout_irq, headphone_intr, 0,
"Sound Lineout Detection", chip)) < 0)
return 0;
/* activate headphone status interrupts */
val = do_gpio_read(&mix->line_detect);
do_gpio_write(&mix->line_detect, val | 0x80);
}
#endif
return 0;
}