diff options
Diffstat (limited to 'kernel/sound/isa/gus/gus_mixer.c')
| -rw-r--r-- | kernel/sound/isa/gus/gus_mixer.c | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/kernel/sound/isa/gus/gus_mixer.c b/kernel/sound/isa/gus/gus_mixer.c new file mode 100644 index 000000000..0dd434140 --- /dev/null +++ b/kernel/sound/isa/gus/gus_mixer.c @@ -0,0 +1,193 @@ +/* + * 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; +} |