2 * Copyright (c) by Uros Bizjak <uros@kss-loka.si>
4 * Midi synth routines for OPL2/OPL3/OPL4 FM
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 #include "opl3_voice.h"
26 #include <sound/asoundef.h>
28 extern char snd_opl3_regmap[MAX_OPL2_VOICES][4];
30 extern int use_internal_drums;
33 * The next table looks magical, but it certainly is not. Its values have
34 * been calculated as table[i]=8*log(i/64)/log(2) with an obvious exception
35 * for i=0. This log-table converts a linear volume-scaling (0..127) to a
36 * logarithmic scaling as present in the FM-synthesizer chips. so : Volume
37 * 64 = 0 db = relative volume 0 and: Volume 32 = -6 db = relative
38 * volume -8 it was implemented as a table because it is only 128 bytes and
39 * it saves a lot of log() calculations. (Rob Hooft <hooft@chem.ruu.nl>)
42 static char opl3_volume_table[128] =
44 -63, -48, -40, -35, -32, -29, -27, -26,
45 -24, -23, -21, -20, -19, -18, -18, -17,
46 -16, -15, -15, -14, -13, -13, -12, -12,
47 -11, -11, -10, -10, -10, -9, -9, -8,
48 -8, -8, -7, -7, -7, -6, -6, -6,
49 -5, -5, -5, -5, -4, -4, -4, -4,
50 -3, -3, -3, -3, -2, -2, -2, -2,
51 -2, -1, -1, -1, -1, 0, 0, 0,
52 0, 0, 0, 1, 1, 1, 1, 1,
53 1, 2, 2, 2, 2, 2, 2, 2,
54 3, 3, 3, 3, 3, 3, 3, 4,
55 4, 4, 4, 4, 4, 4, 4, 5,
56 5, 5, 5, 5, 5, 5, 5, 5,
57 6, 6, 6, 6, 6, 6, 6, 6,
58 6, 7, 7, 7, 7, 7, 7, 7,
59 7, 7, 7, 8, 8, 8, 8, 8
62 void snd_opl3_calc_volume(unsigned char *volbyte, int vel,
63 struct snd_midi_channel *chan)
65 int oldvol, newvol, n;
68 volume = (vel * chan->gm_volume * chan->gm_expression) / (127*127);
72 oldvol = OPL3_TOTAL_LEVEL_MASK - (*volbyte & OPL3_TOTAL_LEVEL_MASK);
74 newvol = opl3_volume_table[volume] + oldvol;
75 if (newvol > OPL3_TOTAL_LEVEL_MASK)
76 newvol = OPL3_TOTAL_LEVEL_MASK;
80 n = OPL3_TOTAL_LEVEL_MASK - (newvol & OPL3_TOTAL_LEVEL_MASK);
82 *volbyte = (*volbyte & OPL3_KSL_MASK) | (n & OPL3_TOTAL_LEVEL_MASK);
86 * Converts the note frequency to block and fnum values for the FM chip
88 static short opl3_note_table[16] =
90 305, 323, /* for pitch bending, -2 semitones */
91 343, 363, 385, 408, 432, 458, 485, 514, 544, 577, 611, 647,
92 686, 726 /* for pitch bending, +2 semitones */
95 static void snd_opl3_calc_pitch(unsigned char *fnum, unsigned char *blocknum,
96 int note, struct snd_midi_channel *chan)
98 int block = ((note / 12) & 0x07) - 1;
99 int idx = (note % 12) + 2;
102 if (chan->midi_pitchbend) {
103 int pitchbend = chan->midi_pitchbend;
106 if (pitchbend > 0x1FFF)
109 segment = pitchbend / 0x1000;
110 freq = opl3_note_table[idx+segment];
111 freq += ((opl3_note_table[idx+segment+1] - freq) *
112 (pitchbend % 0x1000)) / 0x1000;
114 freq = opl3_note_table[idx];
117 *fnum = (unsigned char) freq;
118 *blocknum = ((freq >> 8) & OPL3_FNUM_HIGH_MASK) |
119 ((block << 2) & OPL3_BLOCKNUM_MASK);
124 static void debug_alloc(struct snd_opl3 *opl3, char *s, int voice) {
128 printk(KERN_DEBUG "time %.5i: %s [%.2i]: ", opl3->use_time, s, voice);
129 for (i = 0; i < opl3->max_voices; i++)
130 printk("%c", *(str + opl3->voices[i].state + 1));
136 * Get a FM voice (channel) to play a note on.
138 static int opl3_get_voice(struct snd_opl3 *opl3, int instr_4op,
139 struct snd_midi_channel *chan) {
140 int chan_4op_1; /* first voice for 4op instrument */
141 int chan_4op_2; /* second voice for 4op instrument */
143 struct snd_opl3_voice *vp, *vp2;
144 unsigned int voice_time;
148 char *alloc_type[3] = { "FREE ", "CHEAP ", "EXPENSIVE" };
151 /* This is our "allocation cost" table */
153 FREE = 0, CHEAP, EXPENSIVE, END
156 /* Keeps track of what we are finding */
163 for (i = 0; i < END; i++) {
164 best[i].time = (unsigned int)(-1); /* XXX MAX_?INT really */;
168 /* Look through all the channels for the most suitable. */
169 for (i = 0; i < opl3->max_voices; i++) {
170 vp = &opl3->voices[i];
172 if (vp->state == SNDRV_OPL3_ST_NOT_AVAIL)
173 /* skip unavailable channels, allocated by
174 drum voices or by bounded 4op voices) */
177 voice_time = vp->time;
180 chan_4op_1 = ((i < 3) || (i > 8 && i < 12));
181 chan_4op_2 = ((i > 2 && i < 6) || (i > 11 && i < 15));
183 /* allocate 4op voice */
184 /* skip channels unavailable to 4op instrument */
189 /* kill one voice, CHEAP */
191 /* get state of bounded 2op channel
192 to be allocated for 4op instrument */
193 vp2 = &opl3->voices[i + 3];
194 if (vp2->state == SNDRV_OPL3_ST_ON_2OP) {
195 /* kill two voices, EXPENSIVE */
197 voice_time = (voice_time > vp->time) ?
198 voice_time : vp->time;
201 /* allocate 2op voice */
202 if ((chan_4op_1) || (chan_4op_2))
203 /* use bounded channels for 2op, CHEAP */
206 /* kill one voice on 2op channel, CHEAP */
208 /* raise kill cost to EXPENSIVE for all channels */
212 if (voice_time < bp->time) {
213 bp->time = voice_time;
218 for (i = 0; i < END; i++) {
219 if (best[i].voice >= 0) {
221 printk(KERN_DEBUG "%s %iop allocation on voice %i\n",
222 alloc_type[i], instr_4op ? 4 : 2,
225 return best[i].voice;
232 /* ------------------------------ */
235 * System timer interrupt function
237 void snd_opl3_timer_func(unsigned long data)
240 struct snd_opl3 *opl3 = (struct snd_opl3 *)data;
245 spin_lock_irqsave(&opl3->sys_timer_lock, flags);
246 for (i = 0; i < opl3->max_voices; i++) {
247 struct snd_opl3_voice *vp = &opl3->voices[i];
248 if (vp->state > 0 && vp->note_off_check) {
249 if (vp->note_off == jiffies)
250 snd_opl3_note_off(opl3, vp->note, 0, vp->chan);
256 opl3->tlist.expires = jiffies + 1; /* invoke again */
257 add_timer(&opl3->tlist);
259 opl3->sys_timer_status = 0;
261 spin_unlock_irqrestore(&opl3->sys_timer_lock, flags);
267 static void snd_opl3_start_timer(struct snd_opl3 *opl3)
270 spin_lock_irqsave(&opl3->sys_timer_lock, flags);
271 if (! opl3->sys_timer_status) {
272 opl3->tlist.expires = jiffies + 1;
273 add_timer(&opl3->tlist);
274 opl3->sys_timer_status = 1;
276 spin_unlock_irqrestore(&opl3->sys_timer_lock, flags);
279 /* ------------------------------ */
282 static int snd_opl3_oss_map[MAX_OPL3_VOICES] = {
283 0, 1, 2, 9, 10, 11, 6, 7, 8, 15, 16, 17, 3, 4 ,5, 12, 13, 14
289 void snd_opl3_note_on(void *p, int note, int vel, struct snd_midi_channel *chan)
291 struct snd_opl3 *opl3;
295 struct snd_opl3_voice *vp, *vp2;
296 unsigned short connect_mask;
297 unsigned char connection;
298 unsigned char vol_op[4];
302 unsigned short reg_side;
303 unsigned char op_offset;
304 unsigned char voice_offset;
305 unsigned short opl3_reg;
306 unsigned char reg_val;
307 unsigned char prg, bank;
310 unsigned char fnum, blocknum;
313 struct fm_patch *patch;
314 struct fm_instrument *fm;
320 snd_printk(KERN_DEBUG "Note on, ch %i, inst %i, note %i, vel %i\n",
321 chan->number, chan->midi_program, note, vel);
324 /* in SYNTH mode, application takes care of voices */
325 /* in SEQ mode, drum voice numbers are notes on drum channel */
326 if (opl3->synth_mode == SNDRV_OPL3_MODE_SEQ) {
327 if (chan->drum_channel) {
328 /* percussion instruments are located in bank 128 */
332 bank = chan->gm_bank_select;
333 prg = chan->midi_program;
336 /* Prepare for OSS mode */
337 if (chan->number >= MAX_OPL3_VOICES)
340 /* OSS instruments are located in bank 127 */
342 prg = chan->midi_program;
345 spin_lock_irqsave(&opl3->voice_lock, flags);
347 if (use_internal_drums) {
348 snd_opl3_drum_switch(opl3, note, vel, 1, chan);
349 spin_unlock_irqrestore(&opl3->voice_lock, flags);
354 patch = snd_opl3_find_patch(opl3, prg, bank, 0);
356 spin_unlock_irqrestore(&opl3->voice_lock, flags);
361 switch (patch->type) {
366 if (opl3->hardware >= OPL3_HW_OPL3) {
371 spin_unlock_irqrestore(&opl3->voice_lock, flags);
375 snd_printk(KERN_DEBUG " --> OPL%i instrument: %s\n",
376 instr_4op ? 3 : 2, patch->name);
378 /* in SYNTH mode, application takes care of voices */
379 /* in SEQ mode, allocate voice on free OPL3 channel */
380 if (opl3->synth_mode == SNDRV_OPL3_MODE_SEQ) {
381 voice = opl3_get_voice(opl3, instr_4op, chan);
383 /* remap OSS voice */
384 voice = snd_opl3_oss_map[chan->number];
387 if (voice < MAX_OPL2_VOICES) {
388 /* Left register block for voices 0 .. 8 */
389 reg_side = OPL3_LEFT;
390 voice_offset = voice;
391 connect_mask = (OPL3_LEFT_4OP_0 << voice_offset) & 0x07;
393 /* Right register block for voices 9 .. 17 */
394 reg_side = OPL3_RIGHT;
395 voice_offset = voice - MAX_OPL2_VOICES;
396 connect_mask = (OPL3_RIGHT_4OP_0 << voice_offset) & 0x38;
399 /* kill voice on channel */
400 vp = &opl3->voices[voice];
402 opl3_reg = reg_side | (OPL3_REG_KEYON_BLOCK + voice_offset);
403 reg_val = vp->keyon_reg & ~OPL3_KEYON_BIT;
404 opl3->command(opl3, opl3_reg, reg_val);
407 vp2 = &opl3->voices[voice + 3];
409 opl3_reg = reg_side | (OPL3_REG_KEYON_BLOCK +
411 reg_val = vp->keyon_reg & ~OPL3_KEYON_BIT;
412 opl3->command(opl3, opl3_reg, reg_val);
416 /* set connection register */
418 if ((opl3->connection_reg ^ connect_mask) & connect_mask) {
419 opl3->connection_reg |= connect_mask;
420 /* set connection bit */
421 opl3_reg = OPL3_RIGHT | OPL3_REG_CONNECTION_SELECT;
422 opl3->command(opl3, opl3_reg, opl3->connection_reg);
425 if ((opl3->connection_reg ^ ~connect_mask) & connect_mask) {
426 opl3->connection_reg &= ~connect_mask;
427 /* clear connection bit */
428 opl3_reg = OPL3_RIGHT | OPL3_REG_CONNECTION_SELECT;
429 opl3->command(opl3, opl3_reg, opl3->connection_reg);
434 snd_printk(KERN_DEBUG " --> setting OPL3 connection: 0x%x\n",
435 opl3->connection_reg);
438 * calculate volume depending on connection
439 * between FM operators (see include/opl3.h)
441 for (i = 0; i < (instr_4op ? 4 : 2); i++)
442 vol_op[i] = fm->op[i].ksl_level;
444 connection = fm->feedback_connection[0] & 0x01;
447 connection |= fm->feedback_connection[1] & 0x01;
449 snd_opl3_calc_volume(&vol_op[3], vel, chan);
450 switch (connection) {
452 snd_opl3_calc_volume(&vol_op[2], vel, chan);
455 snd_opl3_calc_volume(&vol_op[0], vel, chan);
458 snd_opl3_calc_volume(&vol_op[1], vel, chan);
461 snd_opl3_calc_volume(&vol_op[1], vel, chan);
463 snd_opl3_calc_volume(&vol_op[0], vel, chan);
466 /* Program the FM voice characteristics */
467 for (i = 0; i < (instr_4op ? 4 : 2); i++) {
469 snd_printk(KERN_DEBUG " --> programming operator %i\n", i);
471 op_offset = snd_opl3_regmap[voice_offset][i];
473 /* Set OPL3 AM_VIB register of requested voice/operator */
474 reg_val = fm->op[i].am_vib;
475 opl3_reg = reg_side | (OPL3_REG_AM_VIB + op_offset);
476 opl3->command(opl3, opl3_reg, reg_val);
478 /* Set OPL3 KSL_LEVEL register of requested voice/operator */
480 opl3_reg = reg_side | (OPL3_REG_KSL_LEVEL + op_offset);
481 opl3->command(opl3, opl3_reg, reg_val);
483 /* Set OPL3 ATTACK_DECAY register of requested voice/operator */
484 reg_val = fm->op[i].attack_decay;
485 opl3_reg = reg_side | (OPL3_REG_ATTACK_DECAY + op_offset);
486 opl3->command(opl3, opl3_reg, reg_val);
488 /* Set OPL3 SUSTAIN_RELEASE register of requested voice/operator */
489 reg_val = fm->op[i].sustain_release;
490 opl3_reg = reg_side | (OPL3_REG_SUSTAIN_RELEASE + op_offset);
491 opl3->command(opl3, opl3_reg, reg_val);
493 /* Select waveform */
494 reg_val = fm->op[i].wave_select;
495 opl3_reg = reg_side | (OPL3_REG_WAVE_SELECT + op_offset);
496 opl3->command(opl3, opl3_reg, reg_val);
499 /* Set operator feedback and 2op inter-operator connection */
500 reg_val = fm->feedback_connection[0];
501 /* Set output voice connection */
502 reg_val |= OPL3_STEREO_BITS;
503 if (chan->gm_pan < 43)
504 reg_val &= ~OPL3_VOICE_TO_RIGHT;
505 if (chan->gm_pan > 85)
506 reg_val &= ~OPL3_VOICE_TO_LEFT;
507 opl3_reg = reg_side | (OPL3_REG_FEEDBACK_CONNECTION + voice_offset);
508 opl3->command(opl3, opl3_reg, reg_val);
511 /* Set 4op inter-operator connection */
512 reg_val = fm->feedback_connection[1] & OPL3_CONNECTION_BIT;
513 /* Set output voice connection */
514 reg_val |= OPL3_STEREO_BITS;
515 if (chan->gm_pan < 43)
516 reg_val &= ~OPL3_VOICE_TO_RIGHT;
517 if (chan->gm_pan > 85)
518 reg_val &= ~OPL3_VOICE_TO_LEFT;
519 opl3_reg = reg_side | (OPL3_REG_FEEDBACK_CONNECTION +
521 opl3->command(opl3, opl3_reg, reg_val);
525 * Special treatment of percussion notes for fm:
526 * Requested pitch is really program, and pitch for
527 * device is whatever was specified in the patch library.
532 * use transpose if defined in patch library
535 note += (fm->trnsps - 64);
537 snd_opl3_calc_pitch(&fnum, &blocknum, note, chan);
539 /* Set OPL3 FNUM_LOW register of requested voice */
540 opl3_reg = reg_side | (OPL3_REG_FNUM_LOW + voice_offset);
541 opl3->command(opl3, opl3_reg, fnum);
543 opl3->voices[voice].keyon_reg = blocknum;
545 /* Set output sound flag */
546 blocknum |= OPL3_KEYON_BIT;
549 snd_printk(KERN_DEBUG " --> trigger voice %i\n", voice);
551 /* Set OPL3 KEYON_BLOCK register of requested voice */
552 opl3_reg = reg_side | (OPL3_REG_KEYON_BLOCK + voice_offset);
553 opl3->command(opl3, opl3_reg, blocknum);
555 /* kill note after fixed duration (in centiseconds) */
557 opl3->voices[voice].note_off = jiffies +
558 (fm->fix_dur * HZ) / 100;
559 snd_opl3_start_timer(opl3);
560 opl3->voices[voice].note_off_check = 1;
562 opl3->voices[voice].note_off_check = 0;
564 /* get extra pgm, but avoid possible loops */
565 extra_prg = (extra_prg) ? 0 : fm->modes;
567 /* do the bookkeeping */
568 vp->time = opl3->use_time++;
573 vp->state = SNDRV_OPL3_ST_ON_4OP;
575 vp2 = &opl3->voices[voice + 3];
576 vp2->time = opl3->use_time++;
579 vp2->state = SNDRV_OPL3_ST_NOT_AVAIL;
581 if (vp->state == SNDRV_OPL3_ST_ON_4OP) {
582 /* 4op killed by 2op, release bounded voice */
583 vp2 = &opl3->voices[voice + 3];
584 vp2->time = opl3->use_time++;
585 vp2->state = SNDRV_OPL3_ST_OFF;
587 vp->state = SNDRV_OPL3_ST_ON_2OP;
591 debug_alloc(opl3, "note on ", voice);
594 /* allocate extra program if specified in patch library */
596 if (extra_prg > 128) {
598 /* percussions start at 35 */
599 prg = extra_prg - 128 + 35 - 1;
605 snd_printk(KERN_DEBUG " *** allocating extra program\n");
609 spin_unlock_irqrestore(&opl3->voice_lock, flags);
612 static void snd_opl3_kill_voice(struct snd_opl3 *opl3, int voice)
614 unsigned short reg_side;
615 unsigned char voice_offset;
616 unsigned short opl3_reg;
618 struct snd_opl3_voice *vp, *vp2;
620 if (snd_BUG_ON(voice >= MAX_OPL3_VOICES))
623 vp = &opl3->voices[voice];
624 if (voice < MAX_OPL2_VOICES) {
625 /* Left register block for voices 0 .. 8 */
626 reg_side = OPL3_LEFT;
627 voice_offset = voice;
629 /* Right register block for voices 9 .. 17 */
630 reg_side = OPL3_RIGHT;
631 voice_offset = voice - MAX_OPL2_VOICES;
636 snd_printk(KERN_DEBUG " --> kill voice %i\n", voice);
638 opl3_reg = reg_side | (OPL3_REG_KEYON_BLOCK + voice_offset);
639 /* clear Key ON bit */
640 opl3->command(opl3, opl3_reg, vp->keyon_reg);
642 /* do the bookkeeping */
643 vp->time = opl3->use_time++;
645 if (vp->state == SNDRV_OPL3_ST_ON_4OP) {
646 vp2 = &opl3->voices[voice + 3];
648 vp2->time = opl3->use_time++;
649 vp2->state = SNDRV_OPL3_ST_OFF;
651 vp->state = SNDRV_OPL3_ST_OFF;
653 debug_alloc(opl3, "note off", voice);
659 * Release a note in response to a midi note off.
661 void snd_opl3_note_off(void *p, int note, int vel, struct snd_midi_channel *chan)
663 struct snd_opl3 *opl3;
666 struct snd_opl3_voice *vp;
673 snd_printk(KERN_DEBUG "Note off, ch %i, inst %i, note %i\n",
674 chan->number, chan->midi_program, note);
677 spin_lock_irqsave(&opl3->voice_lock, flags);
679 if (opl3->synth_mode == SNDRV_OPL3_MODE_SEQ) {
680 if (chan->drum_channel && use_internal_drums) {
681 snd_opl3_drum_switch(opl3, note, vel, 0, chan);
682 spin_unlock_irqrestore(&opl3->voice_lock, flags);
685 /* this loop will hopefully kill all extra voices, because
686 they are grouped by the same channel and note values */
687 for (voice = 0; voice < opl3->max_voices; voice++) {
688 vp = &opl3->voices[voice];
689 if (vp->state > 0 && vp->chan == chan && vp->note == note) {
690 snd_opl3_kill_voice(opl3, voice);
694 /* remap OSS voices */
695 if (chan->number < MAX_OPL3_VOICES) {
696 voice = snd_opl3_oss_map[chan->number];
697 snd_opl3_kill_voice(opl3, voice);
700 spin_unlock_irqrestore(&opl3->voice_lock, flags);
704 * key pressure change
706 void snd_opl3_key_press(void *p, int note, int vel, struct snd_midi_channel *chan)
708 struct snd_opl3 *opl3;
712 snd_printk(KERN_DEBUG "Key pressure, ch#: %i, inst#: %i\n",
713 chan->number, chan->midi_program);
720 void snd_opl3_terminate_note(void *p, int note, struct snd_midi_channel *chan)
722 struct snd_opl3 *opl3;
726 snd_printk(KERN_DEBUG "Terminate note, ch#: %i, inst#: %i\n",
727 chan->number, chan->midi_program);
731 static void snd_opl3_update_pitch(struct snd_opl3 *opl3, int voice)
733 unsigned short reg_side;
734 unsigned char voice_offset;
735 unsigned short opl3_reg;
737 unsigned char fnum, blocknum;
739 struct snd_opl3_voice *vp;
741 if (snd_BUG_ON(voice >= MAX_OPL3_VOICES))
744 vp = &opl3->voices[voice];
745 if (vp->chan == NULL)
746 return; /* not allocated? */
748 if (voice < MAX_OPL2_VOICES) {
749 /* Left register block for voices 0 .. 8 */
750 reg_side = OPL3_LEFT;
751 voice_offset = voice;
753 /* Right register block for voices 9 .. 17 */
754 reg_side = OPL3_RIGHT;
755 voice_offset = voice - MAX_OPL2_VOICES;
758 snd_opl3_calc_pitch(&fnum, &blocknum, vp->note, vp->chan);
760 /* Set OPL3 FNUM_LOW register of requested voice */
761 opl3_reg = reg_side | (OPL3_REG_FNUM_LOW + voice_offset);
762 opl3->command(opl3, opl3_reg, fnum);
764 vp->keyon_reg = blocknum;
766 /* Set output sound flag */
767 blocknum |= OPL3_KEYON_BIT;
769 /* Set OPL3 KEYON_BLOCK register of requested voice */
770 opl3_reg = reg_side | (OPL3_REG_KEYON_BLOCK + voice_offset);
771 opl3->command(opl3, opl3_reg, blocknum);
773 vp->time = opl3->use_time++;
777 * Update voice pitch controller
779 static void snd_opl3_pitch_ctrl(struct snd_opl3 *opl3, struct snd_midi_channel *chan)
782 struct snd_opl3_voice *vp;
786 spin_lock_irqsave(&opl3->voice_lock, flags);
788 if (opl3->synth_mode == SNDRV_OPL3_MODE_SEQ) {
789 for (voice = 0; voice < opl3->max_voices; voice++) {
790 vp = &opl3->voices[voice];
791 if (vp->state > 0 && vp->chan == chan) {
792 snd_opl3_update_pitch(opl3, voice);
796 /* remap OSS voices */
797 if (chan->number < MAX_OPL3_VOICES) {
798 voice = snd_opl3_oss_map[chan->number];
799 snd_opl3_update_pitch(opl3, voice);
802 spin_unlock_irqrestore(&opl3->voice_lock, flags);
806 * Deal with a controller type event. This includes all types of
807 * control events, not just the midi controllers
809 void snd_opl3_control(void *p, int type, struct snd_midi_channel *chan)
811 struct snd_opl3 *opl3;
815 snd_printk(KERN_DEBUG "Controller, TYPE = %i, ch#: %i, inst#: %i\n",
816 type, chan->number, chan->midi_program);
820 case MIDI_CTL_MSB_MODWHEEL:
821 if (chan->control[MIDI_CTL_MSB_MODWHEEL] > 63)
822 opl3->drum_reg |= OPL3_VIBRATO_DEPTH;
824 opl3->drum_reg &= ~OPL3_VIBRATO_DEPTH;
825 opl3->command(opl3, OPL3_LEFT | OPL3_REG_PERCUSSION,
828 case MIDI_CTL_E2_TREMOLO_DEPTH:
829 if (chan->control[MIDI_CTL_E2_TREMOLO_DEPTH] > 63)
830 opl3->drum_reg |= OPL3_TREMOLO_DEPTH;
832 opl3->drum_reg &= ~OPL3_TREMOLO_DEPTH;
833 opl3->command(opl3, OPL3_LEFT | OPL3_REG_PERCUSSION,
836 case MIDI_CTL_PITCHBEND:
837 snd_opl3_pitch_ctrl(opl3, chan);
845 void snd_opl3_nrpn(void *p, struct snd_midi_channel *chan,
846 struct snd_midi_channel_set *chset)
848 struct snd_opl3 *opl3;
852 snd_printk(KERN_DEBUG "NRPN, ch#: %i, inst#: %i\n",
853 chan->number, chan->midi_program);
860 void snd_opl3_sysex(void *p, unsigned char *buf, int len,
861 int parsed, struct snd_midi_channel_set *chset)
863 struct snd_opl3 *opl3;
867 snd_printk(KERN_DEBUG "SYSEX\n");