1 |
#define __NO_VERSION__ |
#define __NO_VERSION__ |
2 |
|
#include "../../alsa-kernel/drivers/opl4/opl4_mixer.c" |
|
/* |
|
|
* OPL4 mixer functions |
|
|
* Copyright (c) 2003 by Clemens Ladisch <clemens@ladisch.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 |
|
|
*/ |
|
|
|
|
|
#include "opl4_local.h" |
|
|
#include <sound/control.h> |
|
|
|
|
|
#define chip_t opl4_t |
|
|
|
|
|
static int snd_opl4_ctl_info(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 = 7; |
|
|
return 0; |
|
|
} |
|
|
|
|
|
static int snd_opl4_ctl_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol) |
|
|
{ |
|
|
opl4_t *opl4 = snd_kcontrol_chip(kcontrol); |
|
|
u8 reg = kcontrol->private_value; |
|
|
u8 value; |
|
|
|
|
|
value = snd_opl4_read(opl4, reg); |
|
|
ucontrol->value.integer.value[0] = 7 - (value & 7); |
|
|
ucontrol->value.integer.value[1] = 7 - ((value >> 3) & 7); |
|
|
return 0; |
|
|
} |
|
|
|
|
|
static int snd_opl4_ctl_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol) |
|
|
{ |
|
|
opl4_t *opl4 = snd_kcontrol_chip(kcontrol); |
|
|
u8 reg = kcontrol->private_value; |
|
|
u8 value, old_value; |
|
|
|
|
|
value = (7 - (ucontrol->value.integer.value[0] & 7)) | |
|
|
((7 - (ucontrol->value.integer.value[1] & 7)) << 3); |
|
|
old_value = snd_opl4_read(opl4, reg); |
|
|
snd_opl4_write(opl4, reg, value); |
|
|
return value != old_value; |
|
|
} |
|
|
|
|
|
static snd_kcontrol_new_t snd_opl4_controls[] = { |
|
|
{ |
|
|
.iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
|
|
.name = "FM Playback Volume", |
|
|
.info = snd_opl4_ctl_info, |
|
|
.get = snd_opl4_ctl_get, |
|
|
.put = snd_opl4_ctl_put, |
|
|
.private_value = OPL4_REG_MIX_CONTROL_FM |
|
|
}, |
|
|
{ |
|
|
.iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
|
|
.name = "Wavetable Playback Volume", |
|
|
.info = snd_opl4_ctl_info, |
|
|
.get = snd_opl4_ctl_get, |
|
|
.put = snd_opl4_ctl_put, |
|
|
.private_value = OPL4_REG_MIX_CONTROL_PCM |
|
|
} |
|
|
}; |
|
|
|
|
|
int snd_opl4_create_mixer(opl4_t *opl4) |
|
|
{ |
|
|
snd_card_t *card = opl4->card; |
|
|
int i, err; |
|
|
|
|
|
#if 0 /* already set by the codec driver */ |
|
|
strcpy(card->mixername, "OPL4 Mixer"); |
|
|
#endif |
|
|
|
|
|
for (i = 0; i < 2; ++i) { |
|
|
err = snd_ctl_add(card, snd_ctl_new1(&snd_opl4_controls[i], opl4)); |
|
|
if (err < 0) |
|
|
return err; |
|
|
} |
|
|
return 0; |
|
|
} |
|