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Diffstat (limited to 'sound/isa/gus/gus_simple.c')
-rw-r--r--sound/isa/gus/gus_simple.c634
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 00000000000..c122e7be6ce
--- /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;
+}
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-25 05:12:49 +0000