- 根目录:
- sound
- isa
- gus
- gus_mixer.c
/*
* Copyright (c) by Jaroslav Kysela <perex@perex.cz>
* Routines for control of ICS 2101 chip and "mixer" in GF1 chip
*
*
* 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/time.h>
#include <linux/wait.h>
#include <sound/core.h>
#include <sound/control.h>
#include <sound/gus.h>
/*
*
*/
#define GF1_SINGLE(xname, xindex, shift, invert) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
.info = snd_gf1_info_single, \
.get = snd_gf1_get_single, .put = snd_gf1_put_single, \
.private_value = shift | (invert << 8) }
#define snd_gf1_info_single snd_ctl_boolean_mono_info
static int snd_gf1_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
int shift = kcontrol->private_value & 0xff;
int invert = (kcontrol->private_value >> 8) & 1;
ucontrol->value.integer.value[0] = (gus->mix_cntrl_reg >> shift) & 1;
if (invert)
ucontrol->value.integer.value[0] ^= 1;
return 0;
}
static int snd_gf1_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
unsigned long flags;
int shift = kcontrol->private_value & 0xff;
int invert = (kcontrol->private_value >> 8) & 1;
int change;
unsigned char oval, nval;
nval = ucontrol->value.integer.value[0] & 1;
if (invert)
nval ^= 1;
nval <<= shift;
spin_lock_irqsave(&gus->reg_lock, flags);
oval = gus->mix_cntrl_reg;
nval = (oval & ~(1 << shift)) | nval;
change = nval != oval;
outb(gus->mix_cntrl_reg = nval, GUSP(gus, MIXCNTRLREG));
outb(gus->gf1.active_voice = 0, GUSP(gus, GF1PAGE));
spin_unlock_irqrestore(&gus->reg_lock, flags);
return change;
}
#define ICS_DOUBLE(xname, xindex, addr) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
.info = snd_ics_info_double, \
.get = snd_ics_get_double, .put = snd_ics_put_double, \
.private_value = addr }
static int snd_ics_info_double(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;
uinfo->value.integer.max = 127;
return 0;
}
static int snd_ics_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
unsigned long flags;
int addr = kcontrol->private_value & 0xff;
unsigned char left, right;
spin_lock_irqsave(&gus->reg_lock, flags);
left = gus->gf1.ics_regs[addr][0];
right = gus->gf1.ics_regs[addr][1];
spin_unlock_irqrestore(&gus->reg_lock, flags);
ucontrol->value.integer.value[0] = left & 127;
ucontrol->value.integer.value[1] = right & 127;
return 0;
}
static int snd_ics_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
unsigned long flags;
int addr = kcontrol->private_value & 0xff;
int change;
unsigned char val1, val2, oval1, oval2, tmp;
val1 = ucontrol->value.integer.value[0] & 127;
val2 = ucontrol->value.integer.value[1] & 127;
spin_lock_irqsave(&gus->reg_lock, flags);
oval1 = gus->gf1.ics_regs[addr][0];
oval2 = gus->gf1.ics_regs[addr][1];
change = val1 != oval1 || val2 != oval2;
gus->gf1.ics_regs[addr][0] = val1;
gus->gf1.ics_regs[addr][1] = val2;
if (gus->ics_flag && gus->ics_flipped &&
(addr == SNDRV_ICS_GF1_DEV || addr == SNDRV_ICS_MASTER_DEV)) {
tmp = val1;
val1 = val2;
val2 = tmp;
}
addr <<= 3;
outb(addr | 0, GUSP(gus, MIXCNTRLPORT));
outb(1, GUSP(gus, MIXDATAPORT));
outb(addr | 2, GUSP(gus, MIXCNTRLPORT));
outb((unsigned char) val1, GUSP(gus, MIXDATAPORT));
outb(addr | 1, GUSP(gus, MIXCNTRLPORT));
outb(2, GUSP(gus, MIXDATAPORT));
outb(addr | 3, GUSP(gus, MIXCNTRLPORT));
outb((unsigned char) val2, GUSP(gus, MIXDATAPORT));
spin_unlock_irqrestore(&gus->reg_lock, flags);
return change;
}
static struct snd_kcontrol_new snd_gf1_controls[] = {
GF1_SINGLE("Master Playback Switch", 0, 1, 1),
GF1_SINGLE("Line Switch", 0, 0, 1),
GF1_SINGLE("Mic Switch", 0, 2, 0)
};
static struct snd_kcontrol_new snd_ics_controls[] = {
GF1_SINGLE("Master Playback Switch", 0, 1, 1),
ICS_DOUBLE("Master Playback Volume", 0, SNDRV_ICS_MASTER_DEV),
ICS_DOUBLE("Synth Playback Volume", 0, SNDRV_ICS_GF1_DEV),
GF1_SINGLE("Line Switch", 0, 0, 1),
ICS_DOUBLE("Line Playback Volume", 0, SNDRV_ICS_LINE_DEV),
GF1_SINGLE("Mic Switch", 0, 2, 0),
ICS_DOUBLE("Mic Playback Volume", 0, SNDRV_ICS_MIC_DEV),
ICS_DOUBLE("CD Playback Volume", 0, SNDRV_ICS_CD_DEV)
};
int snd_gf1_new_mixer(struct snd_gus_card * gus)
{
struct snd_card *card;
unsigned int idx, max;
int err;
if (snd_BUG_ON(!gus))
return -EINVAL;
card = gus->card;
if (snd_BUG_ON(!card))
return -EINVAL;
if (gus->ics_flag)
snd_component_add(card, "ICS2101");
if (card->mixername[0] == '\0') {
strcpy(card->mixername, gus->ics_flag ? "GF1,ICS2101" : "GF1");
} else {
if (gus->ics_flag)
strcat(card->mixername, ",ICS2101");
strcat(card->mixername, ",GF1");
}
if (!gus->ics_flag) {
max = gus->ess_flag ? 1 : ARRAY_SIZE(snd_gf1_controls);
for (idx = 0; idx < max; idx++) {
if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_gf1_controls[idx], gus))) < 0)
return err;
}
} else {
for (idx = 0; idx < ARRAY_SIZE(snd_ics_controls); idx++) {
if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_ics_controls[idx], gus))) < 0)
return err;
}
}
return 0;
}