Initial import

1 files changed, 193 insertions, 0 deletions

diff --git a/sound/isa/gus/gus_mixer.c b/sound/isa/gus/gus_mixer.c
new file mode 100644
index 000000000..0dd434140
--- /dev/null
+++ b/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;
+}