diff options
Diffstat (limited to 'ANDROID_3.4.5/sound/drivers/opl4/opl4_mixer.c')
-rw-r--r-- | ANDROID_3.4.5/sound/drivers/opl4/opl4_mixer.c | 95 |
1 files changed, 0 insertions, 95 deletions
diff --git a/ANDROID_3.4.5/sound/drivers/opl4/opl4_mixer.c b/ANDROID_3.4.5/sound/drivers/opl4/opl4_mixer.c deleted file mode 100644 index 04079de4..00000000 --- a/ANDROID_3.4.5/sound/drivers/opl4/opl4_mixer.c +++ /dev/null @@ -1,95 +0,0 @@ -/* - * 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> - -static int snd_opl4_ctl_info(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 = 7; - return 0; -} - -static int snd_opl4_ctl_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) -{ - struct snd_opl4 *opl4 = snd_kcontrol_chip(kcontrol); - unsigned long flags; - u8 reg = kcontrol->private_value; - u8 value; - - spin_lock_irqsave(&opl4->reg_lock, flags); - value = snd_opl4_read(opl4, reg); - spin_unlock_irqrestore(&opl4->reg_lock, flags); - 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(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) -{ - struct snd_opl4 *opl4 = snd_kcontrol_chip(kcontrol); - unsigned long flags; - 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); - spin_lock_irqsave(&opl4->reg_lock, flags); - old_value = snd_opl4_read(opl4, reg); - snd_opl4_write(opl4, reg, value); - spin_unlock_irqrestore(&opl4->reg_lock, flags); - return value != old_value; -} - -static struct snd_kcontrol_new 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(struct snd_opl4 *opl4) -{ - struct snd_card *card = opl4->card; - int i, err; - - strcat(card->mixername, ",OPL4"); - - 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; -} |