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-rw-r--r--sound/isa/gus/gus_mixer.c199
1 files changed, 199 insertions, 0 deletions
diff --git a/sound/isa/gus/gus_mixer.c b/sound/isa/gus/gus_mixer.c
new file mode 100644
index 0000000..a051094
--- /dev/null
+++ b/sound/isa/gus/gus_mixer.c
@@ -0,0 +1,199 @@
+/*
+ * Copyright (c) by Jaroslav Kysela <perex@suse.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 <sound/driver.h>
+#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) }
+
+static int snd_gf1_info_single(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
+{
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+ uinfo->count = 1;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = 1;
+ return 0;
+}
+
+static int snd_gf1_get_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+ snd_gus_card_t *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(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+ snd_gus_card_t *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(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 = 127;
+ return 0;
+}
+
+static int snd_ics_get_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+ snd_gus_card_t *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(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+ snd_gus_card_t *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 snd_kcontrol_new_t 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 snd_kcontrol_new_t 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(snd_gus_card_t * gus)
+{
+ snd_card_t *card;
+ unsigned int idx, max;
+ int err;
+
+ snd_assert(gus != NULL, return -EINVAL);
+ card = gus->card;
+ snd_assert(card != NULL, 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;
+}
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