Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 634 insertions, 0 deletions

diff --git a/sound/isa/gus/gus_simple.c b/sound/isa/gus/gus_simple.c
new file mode 100644
index 000000000000..c122e7be6ceb
--- /dev/null
+++ b/sound/isa/gus/gus_simple.c
@@ -0,0 +1,634 @@
+/*
+ *  Routines for Gravis UltraSound soundcards - Simple instrument handlers
+ *  Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ *
+ *
+ *   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 <sound/core.h>
+#include <sound/gus.h>
+#include "gus_tables.h"
+
+/*
+ *
+ */
+
+static void interrupt_wave(snd_gus_card_t *gus, snd_gus_voice_t *voice);
+static void interrupt_volume(snd_gus_card_t *gus, snd_gus_voice_t *voice);
+static void interrupt_effect(snd_gus_card_t *gus, snd_gus_voice_t *voice);
+
+static void sample_start(snd_gus_card_t *gus, snd_gus_voice_t *voice, snd_seq_position_t position);
+static void sample_stop(snd_gus_card_t *gus, snd_gus_voice_t *voice, snd_seq_stop_mode_t mode);
+static void sample_freq(snd_gus_card_t *gus, snd_gus_voice_t *voice, snd_seq_frequency_t freq);
+static void sample_volume(snd_gus_card_t *card, snd_gus_voice_t *voice, snd_seq_ev_volume_t *volume);
+static void sample_loop(snd_gus_card_t *card, snd_gus_voice_t *voice, snd_seq_ev_loop_t *loop);
+static void sample_pos(snd_gus_card_t *card, snd_gus_voice_t *voice, snd_seq_position_t position);
+static void sample_private1(snd_gus_card_t *card, snd_gus_voice_t *voice, unsigned char *data);
+
+static snd_gus_sample_ops_t sample_ops = {
+	sample_start,
+	sample_stop,
+	sample_freq,
+	sample_volume,
+	sample_loop,
+	sample_pos,
+	sample_private1
+};
+
+#if 0
+
+static void note_stop(snd_gus_card_t *gus, snd_gus_voice_t *voice, int wait);
+static void note_wait(snd_gus_card_t *gus, snd_gus_voice_t *voice);
+static void note_off(snd_gus_card_t *gus, snd_gus_voice_t *voice);
+static void note_volume(snd_gus_card_t *card, snd_gus_voice_t *voice);
+static void note_pitchbend(snd_gus_card_t *card, snd_gus_voice_t *voice);
+static void note_vibrato(snd_gus_card_t *card, snd_gus_voice_t *voice);
+static void note_tremolo(snd_gus_card_t *card, snd_gus_voice_t *voice);
+
+static struct snd_gus_note_handlers note_commands = {
+	note_stop,
+	note_wait,
+	note_off,
+	note_volume,
+	note_pitchbend,
+	note_vibrato,
+	note_tremolo
+};
+
+static void chn_trigger_down(snd_gus_card_t *card, ultra_channel_t *channel, ultra_instrument_t *instrument, unsigned char note, unsigned char velocity, unsigned char priority );
+static void chn_trigger_up( ultra_card_t *card, ultra_note_t *note );
+static void chn_control( ultra_card_t *card, ultra_channel_t *channel, unsigned short p1, unsigned short p2 );
+
+static struct ULTRA_STRU_INSTRUMENT_CHANNEL_COMMANDS channel_commands = {
+  chn_trigger_down,
+  chn_trigger_up,
+  chn_control
+};
+
+#endif
+
+static void do_volume_envelope(snd_gus_card_t *card, snd_gus_voice_t *voice);
+static void do_pan_envelope(snd_gus_card_t *card, snd_gus_voice_t *voice);
+
+/*
+ *
+ */
+
+static void interrupt_wave(snd_gus_card_t *gus, snd_gus_voice_t *voice)
+{
+	spin_lock(&gus->event_lock);
+	snd_gf1_stop_voice(gus, voice->number);
+	spin_lock(&gus->reg_lock);
+	snd_gf1_select_voice(gus, voice->number);
+	snd_gf1_write16(gus, SNDRV_GF1_VW_VOLUME, 0);
+	spin_unlock(&gus->reg_lock);
+	voice->flags &= ~SNDRV_GF1_VFLG_RUNNING;
+	spin_unlock(&gus->event_lock);
+}
+
+static void interrupt_volume(snd_gus_card_t *gus, snd_gus_voice_t *voice)
+{
+	spin_lock(&gus->event_lock);
+	if (voice->flags & SNDRV_GF1_VFLG_RUNNING)
+		do_volume_envelope(gus, voice);
+	else
+		snd_gf1_stop_voice(gus, voice->number);
+	spin_unlock(&gus->event_lock);
+}
+
+static void interrupt_effect(snd_gus_card_t *gus, snd_gus_voice_t *voice)
+{
+	spin_lock(&gus->event_lock);
+	if ((voice->flags & (SNDRV_GF1_VFLG_RUNNING|SNDRV_GF1_VFLG_EFFECT_TIMER1)) ==
+	                    (SNDRV_GF1_VFLG_RUNNING|SNDRV_GF1_VFLG_EFFECT_TIMER1))
+		do_pan_envelope(gus, voice);
+	spin_unlock(&gus->event_lock);
+}
+
+/*
+ *
+ */
+
+static void do_volume_envelope(snd_gus_card_t *gus, snd_gus_voice_t *voice)
+{
+	unsigned short next, rate, old_volume;
+	int program_next_ramp;
+	unsigned long flags;
+  
+	if (!gus->gf1.volume_ramp) {
+		spin_lock_irqsave(&gus->reg_lock, flags);
+		snd_gf1_select_voice(gus, voice->number);
+		snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_VOLUME_CONTROL);
+		snd_gf1_write16(gus, SNDRV_GF1_VW_VOLUME, voice->gf1_volume);
+		printk("gf1_volume = 0x%x\n", voice->gf1_volume);
+		spin_unlock_irqrestore(&gus->reg_lock, flags);
+		return;
+	}
+	program_next_ramp = 0;
+	rate = next = 0;
+	while (1) {
+		program_next_ramp = 0;
+		rate = next = 0;
+		switch (voice->venv_state) {
+		case VENV_BEFORE:
+			voice->venv_state = VENV_ATTACK;
+			voice->venv_value_next = 0;
+			spin_lock_irqsave(&gus->reg_lock, flags);
+			snd_gf1_select_voice(gus, voice->number);
+			snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_VOLUME_CONTROL);
+			snd_gf1_write16(gus, SNDRV_GF1_VW_VOLUME, SNDRV_GF1_MIN_VOLUME);
+			spin_unlock_irqrestore(&gus->reg_lock, flags);
+			break;
+		case VENV_ATTACK:
+			voice->venv_state = VENV_SUSTAIN;
+			program_next_ramp++;
+			next = 255;
+			rate = gus->gf1.volume_ramp;
+			break;
+		case VENV_SUSTAIN:
+			voice->venv_state = VENV_RELEASE;
+			spin_lock_irqsave(&gus->reg_lock, flags);
+			snd_gf1_select_voice(gus, voice->number);
+			snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_VOLUME_CONTROL);
+ 			snd_gf1_write16(gus, SNDRV_GF1_VW_VOLUME, ((int)voice->gf1_volume * (int)voice->venv_value_next) / 255);
+			spin_unlock_irqrestore(&gus->reg_lock, flags);
+			return;
+		case VENV_RELEASE:
+			voice->venv_state = VENV_DONE;
+			program_next_ramp++;
+			next = 0;
+			rate = gus->gf1.volume_ramp;
+			break;
+		case VENV_DONE:
+			snd_gf1_stop_voice(gus, voice->number);
+			voice->flags &= ~SNDRV_GF1_VFLG_RUNNING;
+			return;
+		case VENV_VOLUME:
+			program_next_ramp++;
+			next = voice->venv_value_next;
+			rate = gus->gf1.volume_ramp;
+			voice->venv_state = voice->venv_state_prev;
+			break;
+		}
+		voice->venv_value_next = next;
+		if (!program_next_ramp)
+			continue;
+		spin_lock_irqsave(&gus->reg_lock, flags);
+		snd_gf1_select_voice(gus, voice->number);
+		snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_VOLUME_CONTROL);
+		old_volume = snd_gf1_read16(gus, SNDRV_GF1_VW_VOLUME) >> 8;
+		if (!rate) {
+			spin_unlock_irqrestore(&gus->reg_lock, flags);			
+			continue;
+		}
+		next = (((int)voice->gf1_volume * (int)next) / 255) >> 8;
+		if (old_volume < SNDRV_GF1_MIN_OFFSET)
+			old_volume = SNDRV_GF1_MIN_OFFSET;
+		if (next < SNDRV_GF1_MIN_OFFSET)
+			next = SNDRV_GF1_MIN_OFFSET;
+		if (next > SNDRV_GF1_MAX_OFFSET)
+			next = SNDRV_GF1_MAX_OFFSET;
+		if (old_volume == next) {
+			spin_unlock_irqrestore(&gus->reg_lock, flags);
+			continue;
+		}
+		voice->volume_control &= ~0xc3;
+		voice->volume_control |= 0x20;
+		if (old_volume > next) {
+			snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_START, next);
+			snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_END, old_volume);
+			voice->volume_control |= 0x40;
+		} else {
+			snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_START, old_volume);
+			snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_END, next);
+		}
+		snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_RATE, rate);
+		snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, voice->volume_control);
+		if (!gus->gf1.enh_mode) {
+			snd_gf1_delay(gus);
+			snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, voice->volume_control);
+		}
+		spin_unlock_irqrestore(&gus->reg_lock, flags);			
+		return;
+	}
+}
+
+static void do_pan_envelope(snd_gus_card_t *gus, snd_gus_voice_t *voice)
+{
+	unsigned long flags;
+	unsigned char old_pan;
+
+#if 0
+	snd_gf1_select_voice(gus, voice->number);
+	printk(" -%i- do_pan_envelope - flags = 0x%x (0x%x -> 0x%x)\n",
+		voice->number,
+		voice->flags,
+		voice->gf1_pan,
+		snd_gf1_i_read8(gus, SNDRV_GF1_VB_PAN) & 0x0f);
+#endif
+	if (gus->gf1.enh_mode) {
+		voice->flags &= ~(SNDRV_GF1_VFLG_EFFECT_TIMER1|SNDRV_GF1_VFLG_PAN);
+		return;
+	}
+	if (!gus->gf1.smooth_pan) {
+		spin_lock_irqsave(&gus->reg_lock, flags);			
+		snd_gf1_select_voice(gus, voice->number);
+		snd_gf1_write8(gus, SNDRV_GF1_VB_PAN, voice->gf1_pan);
+		spin_unlock_irqrestore(&gus->reg_lock, flags);
+		return;
+	}
+	if (!(voice->flags & SNDRV_GF1_VFLG_PAN))		/* before */
+		voice->flags |= SNDRV_GF1_VFLG_EFFECT_TIMER1|SNDRV_GF1_VFLG_PAN;
+	spin_lock_irqsave(&gus->reg_lock, flags);			
+	snd_gf1_select_voice(gus, voice->number);
+	old_pan = snd_gf1_read8(gus, SNDRV_GF1_VB_PAN) & 0x0f;
+	if (old_pan > voice->gf1_pan )
+		old_pan--;
+	if (old_pan < voice->gf1_pan)
+		old_pan++;
+	snd_gf1_write8(gus, SNDRV_GF1_VB_PAN, old_pan);
+	spin_unlock_irqrestore(&gus->reg_lock, flags);
+	if (old_pan == voice->gf1_pan)			/* the goal was reached */
+		voice->flags &= ~(SNDRV_GF1_VFLG_EFFECT_TIMER1|SNDRV_GF1_VFLG_PAN);
+#if 0
+	snd_gf1_select_voice(gus, voice->number);
+	printk(" -%i- (1) do_pan_envelope - flags = 0x%x (0x%x -> 0x%x)\n",
+	       voice->number,
+	       voice->flags,
+	       voice->gf1_pan,
+	       snd_gf1_i_read8(gus, GF1_VB_PAN) & 0x0f);
+#endif
+}
+
+static void set_enhanced_pan(snd_gus_card_t *gus, snd_gus_voice_t *voice, unsigned short pan)
+{
+	unsigned long flags;
+	unsigned short vlo, vro;
+  
+	vlo = SNDRV_GF1_ATTEN((SNDRV_GF1_ATTEN_TABLE_SIZE-1) - pan);
+	vro = SNDRV_GF1_ATTEN(pan);
+	if (pan != SNDRV_GF1_ATTEN_TABLE_SIZE - 1 && pan != 0) {
+		vlo >>= 1;
+		vro >>= 1;
+	}
+	vlo <<= 4;
+	vro <<= 4;
+#if 0
+	printk("vlo = 0x%x (0x%x), vro = 0x%x (0x%x)\n",
+			vlo, snd_gf1_i_read16(gus, GF1_VW_OFFSET_LEFT),
+			vro, snd_gf1_i_read16(gus, GF1_VW_OFFSET_RIGHT));
+#endif
+	spin_lock_irqsave(&gus->reg_lock, flags);			
+	snd_gf1_select_voice(gus, voice->number);
+        snd_gf1_write16(gus, SNDRV_GF1_VW_OFFSET_LEFT_FINAL, vlo);
+	snd_gf1_write16(gus, SNDRV_GF1_VW_OFFSET_RIGHT_FINAL, vro);
+	spin_unlock_irqrestore(&gus->reg_lock, flags);			
+	voice->vlo = vlo;
+	voice->vro = vro;
+}
+
+/*
+ *
+ */
+
+static void sample_start(snd_gus_card_t *gus, snd_gus_voice_t *voice, snd_seq_position_t position)
+{
+	unsigned long flags;
+	unsigned int begin, addr, addr_end, addr_start;
+	int w_16;
+	simple_instrument_t *simple;
+	snd_seq_kinstr_t *instr;
+
+	instr = snd_seq_instr_find(gus->gf1.ilist, &voice->instr, 0, 1);
+	if (instr == NULL)
+		return;
+	voice->instr = instr->instr;	/* copy ID to speedup aliases */
+	simple = KINSTR_DATA(instr);
+	begin = simple->address.memory << 4;
+	w_16 = simple->format & SIMPLE_WAVE_16BIT ? 0x04 : 0;
+	addr_start = simple->loop_start;
+	if (simple->format & SIMPLE_WAVE_LOOP) {
+		addr_end = simple->loop_end;
+	} else {
+		addr_end = (simple->size << 4) - (w_16 ? 40 : 24);
+	}
+	if (simple->format & SIMPLE_WAVE_BACKWARD) {
+		addr = simple->loop_end;
+		if (position < simple->loop_end)
+			addr -= position;
+	} else {
+		addr = position;
+	}
+	voice->control = 0x00;
+	voice->mode = 0x20;		/* enable offset registers */
+	if (simple->format & SIMPLE_WAVE_16BIT)
+		voice->control |= 0x04;
+	if (simple->format & SIMPLE_WAVE_BACKWARD)
+		voice->control |= 0x40;
+	if (simple->format & SIMPLE_WAVE_LOOP) {
+		voice->control |= 0x08;
+	} else {
+		voice->control |= 0x20;
+	}
+	if (simple->format & SIMPLE_WAVE_BIDIR)
+		voice->control |= 0x10;
+	if (simple->format & SIMPLE_WAVE_ULAW)
+		voice->mode |= 0x40;
+	if (w_16) {
+		addr = ((addr << 1) & ~0x1f) | (addr & 0x0f);
+		addr_start = ((addr_start << 1) & ~0x1f) | (addr_start & 0x0f);
+		addr_end = ((addr_end << 1) & ~0x1f) | (addr_end & 0x0f);
+	}
+	addr += begin;
+	addr_start += begin;
+	addr_end += begin;
+	snd_gf1_stop_voice(gus, voice->number);	
+	spin_lock_irqsave(&gus->reg_lock, flags);
+	snd_gf1_select_voice(gus, voice->number);
+	snd_gf1_write16(gus, SNDRV_GF1_VW_FREQUENCY, voice->fc_register + voice->fc_lfo);
+	voice->venv_state = VENV_BEFORE;
+	voice->volume_control = 0x03;
+	snd_gf1_write_addr(gus, SNDRV_GF1_VA_START, addr_start, w_16);
+	snd_gf1_write_addr(gus, SNDRV_GF1_VA_END, addr_end, w_16);
+	snd_gf1_write_addr(gus, SNDRV_GF1_VA_CURRENT, addr, w_16);
+	if (!gus->gf1.enh_mode) {
+		snd_gf1_write8(gus, SNDRV_GF1_VB_PAN, voice->gf1_pan);
+	} else {
+		snd_gf1_write16(gus, SNDRV_GF1_VW_OFFSET_LEFT, voice->vlo);
+		snd_gf1_write16(gus, SNDRV_GF1_VW_OFFSET_LEFT_FINAL, voice->vlo);
+		snd_gf1_write16(gus, SNDRV_GF1_VW_OFFSET_RIGHT, voice->vro);
+		snd_gf1_write16(gus, SNDRV_GF1_VW_OFFSET_RIGHT_FINAL, voice->vro);
+		snd_gf1_write8(gus, SNDRV_GF1_VB_ACCUMULATOR, voice->effect_accumulator);
+		snd_gf1_write16(gus, SNDRV_GF1_VW_EFFECT_VOLUME, voice->gf1_effect_volume);
+		snd_gf1_write16(gus, SNDRV_GF1_VW_EFFECT_VOLUME_FINAL, voice->gf1_effect_volume);
+	}
+	spin_unlock_irqrestore(&gus->reg_lock, flags);
+	do_volume_envelope(gus, voice);
+	spin_lock_irqsave(&gus->reg_lock, flags);
+	snd_gf1_select_voice(gus, voice->number);
+	if (gus->gf1.enh_mode)
+		snd_gf1_write8(gus, SNDRV_GF1_VB_MODE, voice->mode);
+	snd_gf1_write8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL, voice->control);
+	if (!gus->gf1.enh_mode) {
+		snd_gf1_delay(gus);
+		snd_gf1_write8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL, voice->control );
+	}
+	spin_unlock_irqrestore(&gus->reg_lock, flags);
+#if 0
+	snd_gf1_print_voice_registers(gus);
+#endif
+	voice->flags |= SNDRV_GF1_VFLG_RUNNING;
+	snd_seq_instr_free_use(gus->gf1.ilist, instr);
+}
+
+static void sample_stop(snd_gus_card_t *gus, snd_gus_voice_t *voice, snd_seq_stop_mode_t mode)
+{
+	unsigned char control;
+	unsigned long flags;
+
+	if (!(voice->flags & SNDRV_GF1_VFLG_RUNNING))
+		return;
+	switch (mode) {
+	default:
+		if (gus->gf1.volume_ramp > 0) {
+			if (voice->venv_state < VENV_RELEASE) {
+				voice->venv_state = VENV_RELEASE;
+				do_volume_envelope(gus, voice);
+			}
+		}
+		if (mode != SAMPLE_STOP_VENVELOPE) {
+			snd_gf1_stop_voice(gus, voice->number);
+			spin_lock_irqsave(&gus->reg_lock, flags);
+			snd_gf1_select_voice(gus, voice->number);
+			snd_gf1_write16(gus, SNDRV_GF1_VW_VOLUME, SNDRV_GF1_MIN_VOLUME);
+			spin_unlock_irqrestore(&gus->reg_lock, flags);
+			voice->flags &= ~SNDRV_GF1_VFLG_RUNNING;
+		}
+		break;
+	case SAMPLE_STOP_LOOP:		/* disable loop only */
+		spin_lock_irqsave(&gus->reg_lock, flags);
+		snd_gf1_select_voice(gus, voice->number);
+		control = snd_gf1_read8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL);
+		control &= ~(0x83 | 0x04);
+		control |= 0x20;
+		snd_gf1_write8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL, control);
+		spin_unlock_irqrestore(&gus->reg_lock, flags);
+		break;
+	}
+}
+
+static void sample_freq(snd_gus_card_t *gus, snd_gus_voice_t *voice, snd_seq_frequency_t freq)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&gus->reg_lock, flags);
+	voice->fc_register = snd_gf1_translate_freq(gus, freq);
+	snd_gf1_select_voice(gus, voice->number);
+	snd_gf1_write16(gus, SNDRV_GF1_VW_FREQUENCY, voice->fc_register + voice->fc_lfo);
+	spin_unlock_irqrestore(&gus->reg_lock, flags);
+}
+
+static void sample_volume(snd_gus_card_t *gus, snd_gus_voice_t *voice, snd_seq_ev_volume_t *volume)
+{
+	if (volume->volume >= 0) {
+		volume->volume &= 0x3fff;
+		voice->gf1_volume = snd_gf1_lvol_to_gvol_raw(volume->volume << 2) << 4;
+		voice->venv_state_prev = VENV_SUSTAIN;
+		voice->venv_state = VENV_VOLUME;
+		do_volume_envelope(gus, voice);
+        }
+	if (volume->lr >= 0) {
+		volume->lr &= 0x3fff;
+		if (!gus->gf1.enh_mode) {
+			voice->gf1_pan = (volume->lr >> 10) & 15;
+			if (!gus->gf1.full_range_pan) {
+				if (voice->gf1_pan == 0)
+					voice->gf1_pan++;
+				if (voice->gf1_pan == 15)
+					voice->gf1_pan--;
+			}
+			voice->flags &= ~SNDRV_GF1_VFLG_PAN;	/* before */
+			do_pan_envelope(gus, voice);
+		} else {
+			set_enhanced_pan(gus, voice, volume->lr >> 7);
+		}
+	}
+}
+
+static void sample_loop(snd_gus_card_t *gus, snd_gus_voice_t *voice, snd_seq_ev_loop_t *loop)
+{
+	unsigned long flags;
+	int w_16 = voice->control & 0x04;
+	unsigned int begin, addr_start, addr_end;
+	simple_instrument_t *simple;
+	snd_seq_kinstr_t *instr;
+
+#if 0
+	printk("voice_loop: start = 0x%x, end = 0x%x\n", loop->start, loop->end);
+#endif
+	instr = snd_seq_instr_find(gus->gf1.ilist, &voice->instr, 0, 1);
+	if (instr == NULL)
+		return;
+	voice->instr = instr->instr;	/* copy ID to speedup aliases */
+	simple = KINSTR_DATA(instr);
+	begin = simple->address.memory;
+	addr_start = loop->start;
+	addr_end = loop->end;
+	addr_start = (((addr_start << 1) & ~0x1f) | (addr_start & 0x0f)) + begin;
+	addr_end = (((addr_end << 1) & ~0x1f) | (addr_end & 0x0f)) + begin;
+	spin_lock_irqsave(&gus->reg_lock, flags);
+	snd_gf1_select_voice(gus, voice->number);
+	snd_gf1_write_addr(gus, SNDRV_GF1_VA_START, addr_start, w_16);
+	snd_gf1_write_addr(gus, SNDRV_GF1_VA_END, addr_end, w_16);
+	spin_unlock_irqrestore(&gus->reg_lock, flags);
+	snd_seq_instr_free_use(gus->gf1.ilist, instr);
+}
+
+static void sample_pos(snd_gus_card_t *gus, snd_gus_voice_t *voice, snd_seq_position_t position)
+{
+	unsigned long flags;
+	int w_16 = voice->control & 0x04;
+	unsigned int begin, addr;
+	simple_instrument_t *simple;
+	snd_seq_kinstr_t *instr;
+
+#if 0
+	printk("voice_loop: start = 0x%x, end = 0x%x\n", loop->start, loop->end);
+#endif
+	instr = snd_seq_instr_find(gus->gf1.ilist, &voice->instr, 0, 1);
+	if (instr == NULL)
+		return;
+	voice->instr = instr->instr;	/* copy ID to speedup aliases */
+	simple = KINSTR_DATA(instr);
+	begin = simple->address.memory;
+	addr = (((position << 1) & ~0x1f) | (position & 0x0f)) + begin;
+	spin_lock_irqsave(&gus->reg_lock, flags);
+	snd_gf1_select_voice(gus, voice->number);
+	snd_gf1_write_addr(gus, SNDRV_GF1_VA_CURRENT, addr, w_16);
+	spin_unlock_irqrestore(&gus->reg_lock, flags);
+	snd_seq_instr_free_use(gus->gf1.ilist, instr);
+}
+
+#if 0
+
+static unsigned char get_effects_mask( ultra_card_t *card, int value )
+{
+  if ( value > 7 ) return 0;
+  if ( card -> gf1.effects && card -> gf1.effects -> chip_type == ULTRA_EFFECT_CHIP_INTERWAVE )
+    return card -> gf1.effects -> chip.interwave.voice_output[ value ];
+  return 0;
+}
+
+#endif
+
+static void sample_private1(snd_gus_card_t *card, snd_gus_voice_t *voice, unsigned char *data)
+{
+#if 0
+  unsigned long flags;
+  unsigned char uc;
+
+  switch ( *data ) {
+    case ULTRA_PRIV1_IW_EFFECT:
+      uc = get_effects_mask( card, ultra_get_byte( data, 4 ) );
+      uc |= get_effects_mask( card, ultra_get_byte( data, 4 ) >> 4 );
+      uc |= get_effects_mask( card, ultra_get_byte( data, 5 ) );
+      uc |= get_effects_mask( card, ultra_get_byte( data, 5 ) >> 4 );
+      voice -> data.simple.effect_accumulator = uc;
+      voice -> data.simple.effect_volume = ultra_translate_voice_volume( card, ultra_get_word( data, 2 ) ) << 4;
+      if ( !card -> gf1.enh_mode ) return;
+      if ( voice -> flags & VFLG_WAIT_FOR_START ) return;
+      if ( voice -> flags & VFLG_RUNNING )
+        {
+          CLI( &flags );
+          gf1_select_voice( card, voice -> number );
+          ultra_write8( card, GF1_VB_ACCUMULATOR, voice -> data.simple.effect_accumulator );
+          ultra_write16( card, GF1_VW_EFFECT_VOLUME_FINAL, voice -> data.simple.effect_volume );
+          STI( &flags );
+        }
+      break;
+   case ULTRA_PRIV1_IW_LFO:
+     ultra_lfo_command( card, voice -> number, data );
+  }
+#endif
+}
+
+#if 0
+
+/*
+ *
+ */
+
+static void note_stop( ultra_card_t *card, ultra_voice_t *voice, int wait )
+{
+}
+
+static void note_wait( ultra_card_t *card, ultra_voice_t *voice )
+{
+}
+
+static void note_off( ultra_card_t *card, ultra_voice_t *voice )
+{
+}
+
+static void note_volume( ultra_card_t *card, ultra_voice_t *voice )
+{
+}
+
+static void note_pitchbend( ultra_card_t *card, ultra_voice_t *voice )
+{
+}
+
+static void note_vibrato( ultra_card_t *card, ultra_voice_t *voice )
+{
+}
+
+static void note_tremolo( ultra_card_t *card, ultra_voice_t *voice )
+{
+}
+
+/*
+ *
+ */
+ 
+static void chn_trigger_down( ultra_card_t *card, ultra_channel_t *channel, ultra_instrument_t *instrument, unsigned char note, unsigned char velocity, unsigned char priority )
+{
+}
+
+static void chn_trigger_up( ultra_card_t *card, ultra_note_t *note )
+{
+}
+
+static void chn_control( ultra_card_t *card, ultra_channel_t *channel, unsigned short p1, unsigned short p2 )
+{
+}
+
+/*
+ *
+ */
+ 
+#endif
+
+void snd_gf1_simple_init(snd_gus_voice_t *voice)
+{
+	voice->handler_wave = interrupt_wave;
+	voice->handler_volume = interrupt_volume;
+	voice->handler_effect = interrupt_effect;
+	voice->volume_change = NULL;
+	voice->sample_ops = &sample_ops;
+}