1 /*-
2 * Copyright (c) 2003 Mathew Kanner
3 * Copyright (c) 1993 Hannu Savolainen
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28 /*
29 * The sequencer personality manager.
30 */
31
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
34
35 #include <sys/param.h>
36 #include <sys/systm.h>
37 #include <sys/ioccom.h>
38
39 #include <sys/filio.h>
40 #include <sys/lock.h>
41 #include <sys/sockio.h>
42 #include <sys/fcntl.h>
43 #include <sys/tty.h>
44 #include <sys/proc.h>
45 #include <sys/sysctl.h>
46
47 #include <sys/kernel.h> /* for DATA_SET */
48
49 #include <sys/module.h>
50 #include <sys/conf.h>
51 #include <sys/file.h>
52 #include <sys/uio.h>
53 #include <sys/syslog.h>
54 #include <sys/errno.h>
55 #include <sys/malloc.h>
56 #include <sys/bus.h>
57 #include <machine/resource.h>
58 #include <machine/bus.h>
59 #include <machine/clock.h> /* for DELAY */
60 #include <sys/soundcard.h>
61 #include <sys/rman.h>
62 #include <sys/mman.h>
63 #include <sys/poll.h>
64 #include <sys/mutex.h>
65 #include <sys/condvar.h>
66 #include <sys/kthread.h>
67 #include <sys/unistd.h>
68 #include <sys/selinfo.h>
69
70
71 #include <dev/sound/midi/midi.h>
72 #include <dev/sound/midi/midiq.h>
73 #include "synth_if.h"
74
75 #include <dev/sound/midi/sequencer.h>
76
77 #define TMR_TIMERBASE 13
78
79 #define SND_DEV_SEQ 1 /* Sequencer output /dev/sequencer (FM
80 * synthesizer and MIDI output) */
81 #define SND_DEV_MUSIC 8 /* /dev/music, level 2 interface */
82
83 /* Length of a sequencer event. */
84 #define EV_SZ 8
85 #define IEV_SZ 8
86
87 /* Lookup modes */
88 #define LOOKUP_EXIST (0)
89 #define LOOKUP_OPEN (1)
90 #define LOOKUP_CLOSE (2)
91
92 #define PCMMKMINOR(u, d, c) \
93 ((((c) & 0xff) << 16) | (((u) & 0x0f) << 4) | ((d) & 0x0f))
94 #define MIDIMKMINOR(u, d, c) PCMMKMINOR(u, d, c)
95 #define MIDIUNIT(y) ((minor(y) >> 4) & 0x0f)
96 #define MIDIDEV(y) (minor(y) & 0x0f)
97
98 /* These are the entries to the sequencer driver. */
99 static d_open_t seq_open;
100 static d_close_t seq_close;
101 static d_ioctl_t seq_ioctl;
102 static d_read_t seq_read;
103 static d_write_t seq_write;
104 static d_poll_t seq_poll;
105
106 static struct cdevsw seq_cdevsw = {
107 .d_version = D_VERSION,
108 .d_open = seq_open,
109 .d_close = seq_close,
110 .d_read = seq_read,
111 .d_write = seq_write,
112 .d_ioctl = seq_ioctl,
113 .d_poll = seq_poll,
114 .d_name = "sequencer",
115 };
116
117 struct seq_softc {
118 KOBJ_FIELDS;
119
120 struct mtx seq_lock, q_lock;
121 struct cv empty_cv, reset_cv, in_cv, out_cv, state_cv, th_cv;
122
123 MIDIQ_HEAD(, u_char) in_q, out_q;
124
125 u_long flags;
126 /* Flags (protected by flag_mtx of mididev_info) */
127 int fflags; /* Access mode */
128 int music;
129
130 int out_water; /* Sequence output threshould */
131 snd_sync_parm sync_parm; /* AIOSYNC parameter set */
132 struct thread *sync_thread; /* AIOSYNCing thread */
133 struct selinfo in_sel, out_sel;
134 int midi_number;
135 struct cdev *seqdev, *musicdev;
136 int unit;
137 int maxunits;
138 kobj_t *midis;
139 int *midi_flags;
140 kobj_t mapper;
141 void *mapper_cookie;
142 struct timeval timerstop, timersub;
143 int timerbase, tempo;
144 int timerrun;
145 int done;
146 int playing;
147 int recording;
148 int busy;
149 int pre_event_timeout;
150 int waiting;
151 };
152
153 /*
154 * Module specific stuff, including how many sequecers
155 * we currently own.
156 */
157
158 SYSCTL_NODE(_hw_midi, OID_AUTO, seq, CTLFLAG_RD, 0, "Midi sequencer");
159
160 int seq_debug;
161 /* XXX: should this be moved into debug.midi? */
162 SYSCTL_INT(_hw_midi_seq, OID_AUTO, debug, CTLFLAG_RW, &seq_debug, 0, "");
163
164 midi_cmdtab cmdtab_seqevent[] = {
165 {SEQ_NOTEOFF, "SEQ_NOTEOFF"},
166 {SEQ_NOTEON, "SEQ_NOTEON"},
167 {SEQ_WAIT, "SEQ_WAIT"},
168 {SEQ_PGMCHANGE, "SEQ_PGMCHANGE"},
169 {SEQ_SYNCTIMER, "SEQ_SYNCTIMER"},
170 {SEQ_MIDIPUTC, "SEQ_MIDIPUTC"},
171 {SEQ_DRUMON, "SEQ_DRUMON"},
172 {SEQ_DRUMOFF, "SEQ_DRUMOFF"},
173 {SEQ_ECHO, "SEQ_ECHO"},
174 {SEQ_AFTERTOUCH, "SEQ_AFTERTOUCH"},
175 {SEQ_CONTROLLER, "SEQ_CONTROLLER"},
176 {SEQ_BALANCE, "SEQ_BALANCE"},
177 {SEQ_VOLMODE, "SEQ_VOLMODE"},
178 {SEQ_FULLSIZE, "SEQ_FULLSIZE"},
179 {SEQ_PRIVATE, "SEQ_PRIVATE"},
180 {SEQ_EXTENDED, "SEQ_EXTENDED"},
181 {EV_SEQ_LOCAL, "EV_SEQ_LOCAL"},
182 {EV_TIMING, "EV_TIMING"},
183 {EV_CHN_COMMON, "EV_CHN_COMMON"},
184 {EV_CHN_VOICE, "EV_CHN_VOICE"},
185 {EV_SYSEX, "EV_SYSEX"},
186 {-1, NULL},
187 };
188
189 midi_cmdtab cmdtab_seqioctl[] = {
190 {SNDCTL_SEQ_RESET, "SNDCTL_SEQ_RESET"},
191 {SNDCTL_SEQ_SYNC, "SNDCTL_SEQ_SYNC"},
192 {SNDCTL_SYNTH_INFO, "SNDCTL_SYNTH_INFO"},
193 {SNDCTL_SEQ_CTRLRATE, "SNDCTL_SEQ_CTRLRATE"},
194 {SNDCTL_SEQ_GETOUTCOUNT, "SNDCTL_SEQ_GETOUTCOUNT"},
195 {SNDCTL_SEQ_GETINCOUNT, "SNDCTL_SEQ_GETINCOUNT"},
196 {SNDCTL_SEQ_PERCMODE, "SNDCTL_SEQ_PERCMODE"},
197 {SNDCTL_FM_LOAD_INSTR, "SNDCTL_FM_LOAD_INSTR"},
198 {SNDCTL_SEQ_TESTMIDI, "SNDCTL_SEQ_TESTMIDI"},
199 {SNDCTL_SEQ_RESETSAMPLES, "SNDCTL_SEQ_RESETSAMPLES"},
200 {SNDCTL_SEQ_NRSYNTHS, "SNDCTL_SEQ_NRSYNTHS"},
201 {SNDCTL_SEQ_NRMIDIS, "SNDCTL_SEQ_NRMIDIS"},
202 {SNDCTL_SEQ_GETTIME, "SNDCTL_SEQ_GETTIME"},
203 {SNDCTL_MIDI_INFO, "SNDCTL_MIDI_INFO"},
204 {SNDCTL_SEQ_THRESHOLD, "SNDCTL_SEQ_THRESHOLD"},
205 {SNDCTL_SYNTH_MEMAVL, "SNDCTL_SYNTH_MEMAVL"},
206 {SNDCTL_FM_4OP_ENABLE, "SNDCTL_FM_4OP_ENABLE"},
207 {SNDCTL_PMGR_ACCESS, "SNDCTL_PMGR_ACCESS"},
208 {SNDCTL_SEQ_PANIC, "SNDCTL_SEQ_PANIC"},
209 {SNDCTL_SEQ_OUTOFBAND, "SNDCTL_SEQ_OUTOFBAND"},
210 {SNDCTL_TMR_TIMEBASE, "SNDCTL_TMR_TIMEBASE"},
211 {SNDCTL_TMR_START, "SNDCTL_TMR_START"},
212 {SNDCTL_TMR_STOP, "SNDCTL_TMR_STOP"},
213 {SNDCTL_TMR_CONTINUE, "SNDCTL_TMR_CONTINUE"},
214 {SNDCTL_TMR_TEMPO, "SNDCTL_TMR_TEMPO"},
215 {SNDCTL_TMR_SOURCE, "SNDCTL_TMR_SOURCE"},
216 {SNDCTL_TMR_METRONOME, "SNDCTL_TMR_METRONOME"},
217 {SNDCTL_TMR_SELECT, "SNDCTL_TMR_SELECT"},
218 {SNDCTL_MIDI_PRETIME, "SNDCTL_MIDI_PRETIME"},
219 {AIONWRITE, "AIONWRITE"},
220 {AIOGSIZE, "AIOGSIZE"},
221 {AIOSSIZE, "AIOSSIZE"},
222 {AIOGFMT, "AIOGFMT"},
223 {AIOSFMT, "AIOSFMT"},
224 {AIOGMIX, "AIOGMIX"},
225 {AIOSMIX, "AIOSMIX"},
226 {AIOSTOP, "AIOSTOP"},
227 {AIOSYNC, "AIOSYNC"},
228 {AIOGCAP, "AIOGCAP"},
229 {-1, NULL},
230 };
231
232 midi_cmdtab cmdtab_timer[] = {
233 {TMR_WAIT_REL, "TMR_WAIT_REL"},
234 {TMR_WAIT_ABS, "TMR_WAIT_ABS"},
235 {TMR_STOP, "TMR_STOP"},
236 {TMR_START, "TMR_START"},
237 {TMR_CONTINUE, "TMR_CONTINUE"},
238 {TMR_TEMPO, "TMR_TEMPO"},
239 {TMR_ECHO, "TMR_ECHO"},
240 {TMR_CLOCK, "TMR_CLOCK"},
241 {TMR_SPP, "TMR_SPP"},
242 {TMR_TIMESIG, "TMR_TIMESIG"},
243 {-1, NULL},
244 };
245
246 midi_cmdtab cmdtab_seqcv[] = {
247 {MIDI_NOTEOFF, "MIDI_NOTEOFF"},
248 {MIDI_NOTEON, "MIDI_NOTEON"},
249 {MIDI_KEY_PRESSURE, "MIDI_KEY_PRESSURE"},
250 {-1, NULL},
251 };
252
253 midi_cmdtab cmdtab_seqccmn[] = {
254 {MIDI_CTL_CHANGE, "MIDI_CTL_CHANGE"},
255 {MIDI_PGM_CHANGE, "MIDI_PGM_CHANGE"},
256 {MIDI_CHN_PRESSURE, "MIDI_CHN_PRESSURE"},
257 {MIDI_PITCH_BEND, "MIDI_PITCH_BEND"},
258 {MIDI_SYSTEM_PREFIX, "MIDI_SYSTEM_PREFIX"},
259 {-1, NULL},
260 };
261
262 /*
263 * static const char *mpu401_mprovider(kobj_t obj, struct mpu401 *m);
264 */
265
266 static kobj_method_t seq_methods[] = {
267 /* KOBJMETHOD(mpu_provider,mpu401_mprovider), */
268 {0, 0}
269 };
270
271 DEFINE_CLASS(sequencer, seq_methods, 0);
272
273 /* The followings are the local function. */
274 static int seq_convertold(u_char *event, u_char *out);
275
276 /*
277 * static void seq_midiinput(struct seq_softc * scp, void *md);
278 */
279 static void seq_reset(struct seq_softc *scp);
280 static int seq_sync(struct seq_softc *scp);
281
282 static int seq_processevent(struct seq_softc *scp, u_char *event);
283
284 static int seq_timing(struct seq_softc *scp, u_char *event);
285 static int seq_local(struct seq_softc *scp, u_char *event);
286
287 static int seq_chnvoice(struct seq_softc *scp, kobj_t md, u_char *event);
288 static int seq_chncommon(struct seq_softc *scp, kobj_t md, u_char *event);
289 static int seq_sysex(struct seq_softc *scp, kobj_t md, u_char *event);
290
291 static int seq_fetch_mid(struct seq_softc *scp, int unit, kobj_t *md);
292 void seq_copytoinput(struct seq_softc *scp, u_char *event, int len);
293 int seq_modevent(module_t mod, int type, void *data);
294 struct seq_softc *seqs[10];
295 static struct mtx seqinfo_mtx;
296 static u_long nseq = 0;
297
298 static void timer_start(struct seq_softc *t);
299 static void timer_stop(struct seq_softc *t);
300 static void timer_setvals(struct seq_softc *t, int tempo, int timerbase);
301 static void timer_wait(struct seq_softc *t, int ticks, int wait_abs);
302 static int timer_now(struct seq_softc *t);
303
304
305 static void
306 timer_start(struct seq_softc *t)
307 {
308 t->timerrun = 1;
309 getmicrotime(&t->timersub);
310 }
311
312 static void
313 timer_continue(struct seq_softc *t)
314 {
315 struct timeval now;
316
317 if (t->timerrun == 1)
318 return;
319 t->timerrun = 1;
320 getmicrotime(&now);
321 timevalsub(&now, &t->timerstop);
322 timevaladd(&t->timersub, &now);
323 }
324
325 static void
326 timer_stop(struct seq_softc *t)
327 {
328 t->timerrun = 0;
329 getmicrotime(&t->timerstop);
330 }
331
332 static void
333 timer_setvals(struct seq_softc *t, int tempo, int timerbase)
334 {
335 t->tempo = tempo;
336 t->timerbase = timerbase;
337 }
338
339 static void
340 timer_wait(struct seq_softc *t, int ticks, int wait_abs)
341 {
342 struct timeval now, when;
343 int ret;
344 unsigned long long i;
345
346 while (t->timerrun == 0) {
347 SEQ_DEBUG(2, printf("Timer wait when timer isn't running\n"));
348 /*
349 * The old sequencer used timeouts that only increased
350 * the timer when the timer was running.
351 * Hence the sequencer would stick (?) if the
352 * timer was disabled.
353 */
354 cv_wait(&t->reset_cv, &t->seq_lock);
355 if (t->playing == 0)
356 return;
357 }
358
359 i = ticks * 60ull * 1000000ull / (t->tempo * t->timerbase);
360
361 when.tv_sec = i / 1000000;
362 when.tv_usec = i % 1000000;
363
364 #if 0
365 printf("timer_wait tempo %d timerbase %d ticks %d abs %d u_sec %llu\n",
366 t->tempo, t->timerbase, ticks, wait_abs, i);
367 #endif
368
369 if (wait_abs != 0) {
370 getmicrotime(&now);
371 timevalsub(&now, &t->timersub);
372 timevalsub(&when, &now);
373 }
374 if (when.tv_sec < 0 || when.tv_usec < 0) {
375 SEQ_DEBUG(3,
376 printf("seq_timer error negative time %lds.%06lds\n",
377 (long)when.tv_sec, (long)when.tv_usec));
378 return;
379 }
380 i = when.tv_sec * 1000000ull;
381 i += when.tv_usec;
382 i *= hz;
383 i /= 1000000ull;
384 #if 0
385 printf("seq_timer usec %llu ticks %llu\n",
386 when.tv_sec * 1000000ull + when.tv_usec, i);
387 #endif
388 t->waiting = 1;
389 ret = cv_timedwait(&t->reset_cv, &t->seq_lock, i + 1);
390 t->waiting = 0;
391
392 if (ret != EWOULDBLOCK)
393 SEQ_DEBUG(3, printf("seq_timer didn't timeout\n"));
394
395 }
396
397 static int
398 timer_now(struct seq_softc *t)
399 {
400 struct timeval now;
401 unsigned long long i;
402 int ret;
403
404 if (t->timerrun == 0)
405 now = t->timerstop;
406 else
407 getmicrotime(&now);
408
409 timevalsub(&now, &t->timersub);
410
411 i = now.tv_sec * 1000000ull;
412 i += now.tv_usec;
413 i *= t->timerbase;
414 /* i /= t->tempo; */
415 i /= 1000000ull;
416
417 ret = i;
418 /*
419 * printf("timer_now: %llu %d\n", i, ret);
420 */
421
422 return ret;
423 }
424
425 static void
426 seq_eventthread(void *arg)
427 {
428 struct seq_softc *scp = arg;
429 char event[EV_SZ];
430
431 mtx_lock(&scp->seq_lock);
432 SEQ_DEBUG(2, printf("seq_eventthread started\n"));
433 while (scp->done == 0) {
434 restart:
435 while (scp->playing == 0) {
436 cv_wait(&scp->state_cv, &scp->seq_lock);
437 if (scp->done)
438 goto done;
439 }
440
441 while (MIDIQ_EMPTY(scp->out_q)) {
442 cv_broadcast(&scp->empty_cv);
443 cv_wait(&scp->out_cv, &scp->seq_lock);
444 if (scp->playing == 0)
445 goto restart;
446 if (scp->done)
447 goto done;
448 }
449
450 MIDIQ_DEQ(scp->out_q, event, EV_SZ);
451
452 if (MIDIQ_AVAIL(scp->out_q) < scp->out_water) {
453 cv_broadcast(&scp->out_cv);
454 selwakeup(&scp->out_sel);
455 }
456 seq_processevent(scp, event);
457 }
458
459 done:
460 cv_broadcast(&scp->th_cv);
461 mtx_unlock(&scp->seq_lock);
462 mtx_lock(&Giant);
463 SEQ_DEBUG(2, printf("seq_eventthread finished\n"));
464 kthread_exit(0);
465 }
466
467 /*
468 * seq_processevent: This maybe called by the event thread or the IOCTL
469 * handler for queued and out of band events respectively.
470 */
471 static int
472 seq_processevent(struct seq_softc *scp, u_char *event)
473 {
474 int ret;
475 kobj_t m;
476
477 ret = 0;
478
479 if (event[0] == EV_SEQ_LOCAL)
480 ret = seq_local(scp, event);
481 else if (event[0] == EV_TIMING)
482 ret = seq_timing(scp, event);
483 else if (event[0] != EV_CHN_VOICE &&
484 event[0] != EV_CHN_COMMON &&
485 event[0] != EV_SYSEX &&
486 event[0] != SEQ_MIDIPUTC) {
487 ret = 1;
488 SEQ_DEBUG(2, printf("seq_processevent not known %d\n",
489 event[0]));
490 } else if (seq_fetch_mid(scp, event[1], &m) != 0) {
491 ret = 1;
492 SEQ_DEBUG(2, printf("seq_processevent midi unit not found %d\n",
493 event[1]));
494 } else
495 switch (event[0]) {
496 case EV_CHN_VOICE:
497 ret = seq_chnvoice(scp, m, event);
498 break;
499 case EV_CHN_COMMON:
500 ret = seq_chncommon(scp, m, event);
501 break;
502 case EV_SYSEX:
503 ret = seq_sysex(scp, m, event);
504 break;
505 case SEQ_MIDIPUTC:
506 mtx_unlock(&scp->seq_lock);
507 ret = SYNTH_WRITERAW(m, &event[2], 1);
508 mtx_lock(&scp->seq_lock);
509 break;
510 }
511 return ret;
512 }
513
514 static int
515 seq_addunit(void)
516 {
517 struct seq_softc *scp;
518 int ret;
519 u_char *buf;
520
521 /* Allocate the softc. */
522 ret = ENOMEM;
523 scp = malloc(sizeof(*scp), M_DEVBUF, M_NOWAIT | M_ZERO);
524 if (scp == NULL) {
525 SEQ_DEBUG(1, printf("seq_addunit: softc allocation failed.\n"));
526 goto err;
527 }
528 kobj_init((kobj_t)scp, &sequencer_class);
529
530 buf = malloc(sizeof(*buf) * EV_SZ * 1024, M_TEMP, M_NOWAIT | M_ZERO);
531 if (buf == NULL)
532 goto err;
533 MIDIQ_INIT(scp->in_q, buf, EV_SZ * 1024);
534 buf = malloc(sizeof(*buf) * EV_SZ * 1024, M_TEMP, M_NOWAIT | M_ZERO);
535 if (buf == NULL)
536 goto err;
537 MIDIQ_INIT(scp->out_q, buf, EV_SZ * 1024);
538 ret = EINVAL;
539
540 scp->midis = malloc(sizeof(kobj_t) * 32, M_TEMP, M_NOWAIT | M_ZERO);
541 scp->midi_flags = malloc(sizeof(*scp->midi_flags) * 32, M_TEMP,
542 M_NOWAIT | M_ZERO);
543
544 if (scp->midis == NULL || scp->midi_flags == NULL)
545 goto err;
546
547 scp->flags = 0;
548
549 mtx_init(&scp->seq_lock, "seqflq", NULL, 0);
550 cv_init(&scp->state_cv, "seqstate");
551 cv_init(&scp->empty_cv, "seqempty");
552 cv_init(&scp->reset_cv, "seqtimer");
553 cv_init(&scp->out_cv, "seqqout");
554 cv_init(&scp->in_cv, "seqqin");
555 cv_init(&scp->th_cv, "seqstart");
556
557 /*
558 * Init the damn timer
559 */
560
561 scp->mapper = midimapper_addseq(scp, &scp->unit, &scp->mapper_cookie);
562 if (scp->mapper == NULL)
563 goto err;
564
565 scp->seqdev = make_dev(&seq_cdevsw,
566 MIDIMKMINOR(scp->unit, SND_DEV_SEQ, 0), UID_ROOT,
567 GID_WHEEL, 0666, "sequencer%d", scp->unit);
568
569 scp->musicdev = make_dev(&seq_cdevsw,
570 MIDIMKMINOR(scp->unit, SND_DEV_MUSIC, 0), UID_ROOT,
571 GID_WHEEL, 0666, "music%d", scp->unit);
572
573 if (scp->seqdev == NULL || scp->musicdev == NULL)
574 goto err;
575 /*
576 * TODO: Add to list of sequencers this module provides
577 */
578
579 ret = kthread_create(seq_eventthread, scp, NULL, RFHIGHPID, 0,
580 "sequencer %02d", scp->unit);
581
582 if (ret)
583 goto err;
584
585 scp->seqdev->si_drv1 = scp->musicdev->si_drv1 = scp;
586
587 SEQ_DEBUG(2, printf("sequencer %d created scp %p\n", scp->unit, scp));
588
589 ret = 0;
590
591 mtx_lock(&seqinfo_mtx);
592 seqs[nseq++] = scp;
593 mtx_unlock(&seqinfo_mtx);
594
595 goto ok;
596
597 err:
598 if (scp != NULL) {
599 if (scp->seqdev != NULL)
600 destroy_dev(scp->seqdev);
601 if (scp->musicdev != NULL)
602 destroy_dev(scp->musicdev);
603 /*
604 * TODO: Destroy mutex and cv
605 */
606 if (scp->midis != NULL)
607 free(scp->midis, M_TEMP);
608 if (scp->midi_flags != NULL)
609 free(scp->midi_flags, M_TEMP);
610 if (scp->out_q.b)
611 free(scp->out_q.b, M_TEMP);
612 if (scp->in_q.b)
613 free(scp->in_q.b, M_TEMP);
614 free(scp, M_DEVBUF);
615 }
616 ok:
617 return ret;
618 }
619
620 static int
621 seq_delunit(int unit)
622 {
623 struct seq_softc *scp = seqs[unit];
624 int i;
625
626 //SEQ_DEBUG(4, printf("seq_delunit: %d\n", unit));
627 SEQ_DEBUG(1, printf("seq_delunit: 1 \n"));
628 mtx_lock(&scp->seq_lock);
629
630 scp->playing = 0;
631 scp->done = 1;
632 cv_broadcast(&scp->out_cv);
633 cv_broadcast(&scp->state_cv);
634 cv_broadcast(&scp->reset_cv);
635 SEQ_DEBUG(1, printf("seq_delunit: 2 \n"));
636 cv_wait(&scp->th_cv, &scp->seq_lock);
637 SEQ_DEBUG(1, printf("seq_delunit: 3.0 \n"));
638 mtx_unlock(&scp->seq_lock);
639 SEQ_DEBUG(1, printf("seq_delunit: 3.1 \n"));
640
641 cv_destroy(&scp->state_cv);
642 SEQ_DEBUG(1, printf("seq_delunit: 4 \n"));
643 cv_destroy(&scp->empty_cv);
644 SEQ_DEBUG(1, printf("seq_delunit: 5 \n"));
645 cv_destroy(&scp->reset_cv);
646 SEQ_DEBUG(1, printf("seq_delunit: 6 \n"));
647 cv_destroy(&scp->out_cv);
648 SEQ_DEBUG(1, printf("seq_delunit: 7 \n"));
649 cv_destroy(&scp->in_cv);
650 SEQ_DEBUG(1, printf("seq_delunit: 8 \n"));
651 cv_destroy(&scp->th_cv);
652
653 SEQ_DEBUG(1, printf("seq_delunit: 10 \n"));
654 if (scp->seqdev)
655 destroy_dev(scp->seqdev);
656 SEQ_DEBUG(1, printf("seq_delunit: 11 \n"));
657 if (scp->musicdev)
658 destroy_dev(scp->musicdev);
659 SEQ_DEBUG(1, printf("seq_delunit: 12 \n"));
660 scp->seqdev = scp->musicdev = NULL;
661 if (scp->midis != NULL)
662 free(scp->midis, M_TEMP);
663 SEQ_DEBUG(1, printf("seq_delunit: 13 \n"));
664 if (scp->midi_flags != NULL)
665 free(scp->midi_flags, M_TEMP);
666 SEQ_DEBUG(1, printf("seq_delunit: 14 \n"));
667 free(scp->out_q.b, M_TEMP);
668 SEQ_DEBUG(1, printf("seq_delunit: 15 \n"));
669 free(scp->in_q.b, M_TEMP);
670
671 SEQ_DEBUG(1, printf("seq_delunit: 16 \n"));
672
673 mtx_destroy(&scp->seq_lock);
674 SEQ_DEBUG(1, printf("seq_delunit: 17 \n"));
675 free(scp, M_DEVBUF);
676
677 mtx_lock(&seqinfo_mtx);
678 for (i = unit; i < (nseq - 1); i++)
679 seqs[i] = seqs[i + 1];
680 nseq--;
681 mtx_unlock(&seqinfo_mtx);
682
683 return 0;
684 }
685
686 int
687 seq_modevent(module_t mod, int type, void *data)
688 {
689 int retval, r;
690
691 retval = 0;
692
693 switch (type) {
694 case MOD_LOAD:
695 mtx_init(&seqinfo_mtx, "seqmod", NULL, 0);
696 retval = seq_addunit();
697 break;
698
699 case MOD_UNLOAD:
700 while (nseq) {
701 r = seq_delunit(nseq - 1);
702 if (r) {
703 retval = r;
704 break;
705 }
706 }
707 if (nseq == 0) {
708 retval = 0;
709 mtx_destroy(&seqinfo_mtx);
710 }
711 break;
712
713 default:
714 break;
715 }
716
717 return retval;
718 }
719
720 static int
721 seq_fetch_mid(struct seq_softc *scp, int unit, kobj_t *md)
722 {
723
724 if (unit > scp->midi_number || unit < 0)
725 return EINVAL;
726
727 *md = scp->midis[unit];
728
729 return 0;
730 }
731
732 int
733 seq_open(struct cdev *i_dev, int flags, int mode, struct thread *td)
734 {
735 struct seq_softc *scp = i_dev->si_drv1;
736 int i;
737
738 if (scp == NULL)
739 return ENXIO;
740
741 SEQ_DEBUG(3, printf("seq_open: scp %p unit %d, flags 0x%x.\n",
742 scp, scp->unit, flags));
743
744 /*
745 * Mark this device busy.
746 */
747
748 mtx_lock(&scp->seq_lock);
749 if (scp->busy) {
750 mtx_unlock(&scp->seq_lock);
751 SEQ_DEBUG(2, printf("seq_open: unit %d is busy.\n", scp->unit));
752 return EBUSY;
753 }
754 scp->fflags = flags;
755 /*
756 if ((scp->fflags & O_NONBLOCK) != 0)
757 scp->flags |= SEQ_F_NBIO;
758 */
759 scp->music = MIDIDEV(i_dev) == SND_DEV_MUSIC;
760
761 /*
762 * Enumerate the available midi devices
763 */
764 scp->midi_number = 0;
765 scp->maxunits = midimapper_open(scp->mapper, &scp->mapper_cookie);
766
767 if (scp->maxunits == 0)
768 SEQ_DEBUG(2, printf("seq_open: no midi devices\n"));
769
770 for (i = 0; i < scp->maxunits; i++) {
771 scp->midis[scp->midi_number] =
772 midimapper_fetch_synth(scp->mapper, scp->mapper_cookie, i);
773 if (scp->midis[scp->midi_number]) {
774 if (SYNTH_OPEN(scp->midis[scp->midi_number], scp,
775 scp->fflags) != 0)
776 scp->midis[scp->midi_number] = NULL;
777 else {
778 scp->midi_flags[scp->midi_number] =
779 SYNTH_QUERY(scp->midis[scp->midi_number]);
780 scp->midi_number++;
781 }
782 }
783 }
784
785 timer_setvals(scp, 60, 100);
786
787 timer_start(scp);
788 timer_stop(scp);
789 /*
790 * actually, if we're in rdonly mode, we should start the timer
791 */
792 /*
793 * TODO: Handle recording now
794 */
795
796 scp->out_water = MIDIQ_SIZE(scp->out_q) / 2;
797
798 scp->busy = 1;
799 mtx_unlock(&scp->seq_lock);
800
801 SEQ_DEBUG(2, printf("seq_open: opened, mode %s.\n",
802 scp->music ? "music" : "sequencer"));
803 SEQ_DEBUG(2,
804 printf("Sequencer %d %p opened maxunits %d midi_number %d:\n",
805 scp->unit, scp, scp->maxunits, scp->midi_number));
806 for (i = 0; i < scp->midi_number; i++)
807 SEQ_DEBUG(3, printf(" midi %d %p\n", i, scp->midis[i]));
808
809 return 0;
810 }
811
812 /*
813 * seq_close
814 */
815 int
816 seq_close(struct cdev *i_dev, int flags, int mode, struct thread *td)
817 {
818 int i;
819 struct seq_softc *scp = i_dev->si_drv1;
820 int ret;
821
822 if (scp == NULL)
823 return ENXIO;
824
825 SEQ_DEBUG(2, printf("seq_close: unit %d.\n", scp->unit));
826
827 mtx_lock(&scp->seq_lock);
828
829 ret = ENXIO;
830 if (scp->busy == 0)
831 goto err;
832
833 seq_reset(scp);
834 seq_sync(scp);
835
836 for (i = 0; i < scp->midi_number; i++)
837 if (scp->midis[i])
838 SYNTH_CLOSE(scp->midis[i]);
839
840 midimapper_close(scp->mapper, scp->mapper_cookie);
841
842 timer_stop(scp);
843
844 scp->busy = 0;
845 ret = 0;
846
847 err:
848 SEQ_DEBUG(3, printf("seq_close: closed ret = %d.\n", ret));
849 mtx_unlock(&scp->seq_lock);
850 return ret;
851 }
852
853 int
854 seq_read(struct cdev *i_dev, struct uio *uio, int ioflag)
855 {
856 int retval, used;
857 struct seq_softc *scp = i_dev->si_drv1;
858
859 #define SEQ_RSIZE 32
860 u_char buf[SEQ_RSIZE];
861
862 if (scp == NULL)
863 return ENXIO;
864
865 SEQ_DEBUG(7, printf("seq_read: unit %d, resid %d.\n",
866 scp->unit, uio->uio_resid));
867
868 mtx_lock(&scp->seq_lock);
869 if ((scp->fflags & FREAD) == 0) {
870 SEQ_DEBUG(2, printf("seq_read: unit %d is not for reading.\n",
871 scp->unit));
872 retval = EIO;
873 goto err1;
874 }
875 /*
876 * Begin recording.
877 */
878 /*
879 * if ((scp->flags & SEQ_F_READING) == 0)
880 */
881 /*
882 * TODO, start recording if not alread
883 */
884
885 /*
886 * I think the semantics are to return as soon
887 * as possible.
888 * Second thought, it doens't seem like midimoutain
889 * expects that at all.
890 * TODO: Look up in some sort of spec
891 */
892
893 while (uio->uio_resid > 0) {
894 while (MIDIQ_EMPTY(scp->in_q)) {
895 retval = EWOULDBLOCK;
896 /*
897 * I wish I knew which one to care about
898 */
899
900 if (scp->fflags & O_NONBLOCK)
901 goto err1;
902 if (ioflag & O_NONBLOCK)
903 goto err1;
904
905 retval = cv_wait_sig(&scp->in_cv, &scp->seq_lock);
906 if (retval == EINTR)
907 goto err1;
908 }
909
910 used = MIN(MIDIQ_LEN(scp->in_q), uio->uio_resid);
911 used = MIN(used, SEQ_RSIZE);
912
913 SEQ_DEBUG(8, printf("midiread: uiomove cc=%d\n", used));
914 MIDIQ_DEQ(scp->in_q, buf, used);
915 retval = uiomove(buf, used, uio);
916 if (retval)
917 goto err1;
918 }
919
920 retval = 0;
921 err1:
922 mtx_unlock(&scp->seq_lock);
923 SEQ_DEBUG(6, printf("seq_read: ret %d, resid %d.\n",
924 retval, uio->uio_resid));
925
926 return retval;
927 }
928
929 int
930 seq_write(struct cdev *i_dev, struct uio *uio, int ioflag)
931 {
932 u_char event[EV_SZ], newevent[EV_SZ], ev_code;
933 struct seq_softc *scp = i_dev->si_drv1;
934 int retval;
935 int used;
936
937 SEQ_DEBUG(7, printf("seq_write: unit %d, resid %d.\n",
938 scp->unit, uio->uio_resid));
939
940 if (scp == NULL)
941 return ENXIO;
942
943 mtx_lock(&scp->seq_lock);
944
945 if ((scp->fflags & FWRITE) == 0) {
946 SEQ_DEBUG(2, printf("seq_write: unit %d is not for writing.\n",
947 scp->unit));
948 retval = EIO;
949 goto err0;
950 }
951 while (uio->uio_resid > 0) {
952 while (MIDIQ_AVAIL(scp->out_q) == 0) {
953 retval = EWOULDBLOCK;
954 if (scp->fflags & O_NONBLOCK)
955 goto err0;
956 if (ioflag & O_NONBLOCK)
957 goto err0;
958 SEQ_DEBUG(8, printf("seq_write cvwait\n"));
959
960 scp->playing = 1;
961 cv_broadcast(&scp->out_cv);
962 cv_broadcast(&scp->state_cv);
963
964 retval = cv_wait_sig(&scp->out_cv, &scp->seq_lock);
965 /*
966 * We slept, maybe things have changed since last
967 * dying check
968 */
969 if (retval == EINTR)
970 goto err0;
971 #if 0
972 /*
973 * Useless test
974 */
975 if (scp != i_dev->si_drv1)
976 retval = ENXIO;
977 #endif
978 }
979
980 used = MIN(uio->uio_resid, 4);
981
982 SEQ_DEBUG(8, printf("seqout: resid %d len %jd avail %jd\n",
983 uio->uio_resid, (intmax_t)MIDIQ_LEN(scp->out_q),
984 (intmax_t)MIDIQ_AVAIL(scp->out_q)));
985
986 if (used != 4) {
987 retval = ENXIO;
988 goto err0;
989 }
990 retval = uiomove(event, used, uio);
991 if (retval)
992 goto err0;
993
994 ev_code = event[0];
995 SEQ_DEBUG(8, printf("seq_write: unit %d, event %s.\n",
996 scp->unit, midi_cmdname(ev_code, cmdtab_seqevent)));
997
998 /* Have a look at the event code. */
999 if (ev_code == SEQ_FULLSIZE) {
1000
1001 /*
1002 * TODO: restore code for SEQ_FULLSIZE
1003 */
1004 #if 0
1005 /*
1006 * A long event, these are the patches/samples for a
1007 * synthesizer.
1008 */
1009 midiunit = *(u_short *)&event[2];
1010 mtx_lock(&sd->seq_lock);
1011 ret = lookup_mididev(scp, midiunit, LOOKUP_OPEN, &md);
1012 mtx_unlock(&sd->seq_lock);
1013 if (ret != 0)
1014 return (ret);
1015
1016 SEQ_DEBUG(printf("seq_write: loading a patch to the unit %d.\n", midiunit));
1017
1018 ret = md->synth.loadpatch(md, *(short *)&event[0], buf,
1019 p + 4, count, 0);
1020 return (ret);
1021 #else
1022 /*
1023 * For now, just flush the darn buffer
1024 */
1025 SEQ_DEBUG(2,
1026 printf("seq_write: SEQ_FULLSIZE flusing buffer.\n"));
1027 while (uio->uio_resid > 0) {
1028 retval = uiomove(event, EV_SZ, uio);
1029 if (retval)
1030 goto err0;
1031
1032 }
1033 retval = 0;
1034 goto err0;
1035 #endif
1036 }
1037 retval = EINVAL;
1038 if (ev_code >= 128) {
1039
1040 /*
1041 * Some sort of an extended event. The size is eight
1042 * bytes. scoop extra info.
1043 */
1044 if (scp->music && ev_code == SEQ_EXTENDED) {
1045 SEQ_DEBUG(2, printf("seq_write: invalid level two event %x.\n", ev_code));
1046 goto err0;
1047 }
1048 if (uiomove((caddr_t)&event[4], 4, uio)) {
1049 SEQ_DEBUG(2,
1050 printf("seq_write: user memory mangled?\n"));
1051 goto err0;
1052 }
1053 } else {
1054 /*
1055 * Size four event.
1056 */
1057 if (scp->music) {
1058 SEQ_DEBUG(2, printf("seq_write: four byte event in music mode.\n"));
1059 goto err0;
1060 }
1061 }
1062 if (ev_code == SEQ_MIDIPUTC) {
1063 /*
1064 * TODO: event[2] is unit number to receive char.
1065 * Range check it.
1066 */
1067 }
1068 if (scp->music) {
1069 #ifdef not_ever_ever
1070 if (event[0] == EV_TIMING &&
1071 (event[1] == TMR_START || event[1] == TMR_STOP)) {
1072 /*
1073 * For now, try to make midimoutain work by
1074 * forcing these events to be processed
1075 * immediatly.
1076 */
1077 seq_processevent(scp, event);
1078 } else
1079 MIDIQ_ENQ(scp->out_q, event, EV_SZ);
1080 #else
1081 MIDIQ_ENQ(scp->out_q, event, EV_SZ);
1082 #endif
1083 } else {
1084 if (seq_convertold(event, newevent) > 0)
1085 MIDIQ_ENQ(scp->out_q, newevent, EV_SZ);
1086 #if 0
1087 else
1088 goto err0;
1089 #endif
1090 }
1091
1092 }
1093
1094 scp->playing = 1;
1095 cv_broadcast(&scp->state_cv);
1096 cv_broadcast(&scp->out_cv);
1097
1098 retval = 0;
1099
1100 err0:
1101 SEQ_DEBUG(6,
1102 printf("seq_write done: leftover buffer length %d retval %d\n",
1103 uio->uio_resid, retval));
1104 mtx_unlock(&scp->seq_lock);
1105 return retval;
1106 }
1107
1108 int
1109 seq_ioctl(struct cdev *i_dev, u_long cmd, caddr_t arg, int mode,
1110 struct thread *td)
1111 {
1112 int midiunit, ret, tmp;
1113 struct seq_softc *scp = i_dev->si_drv1;
1114 struct synth_info *synthinfo;
1115 struct midi_info *midiinfo;
1116 u_char event[EV_SZ];
1117 u_char newevent[EV_SZ];
1118
1119 kobj_t md;
1120
1121 /*
1122 * struct snd_size *sndsize;
1123 */
1124
1125 if (scp == NULL)
1126 return ENXIO;
1127
1128 SEQ_DEBUG(6, printf("seq_ioctl: unit %d, cmd %s.\n",
1129 scp->unit, midi_cmdname(cmd, cmdtab_seqioctl)));
1130
1131 ret = 0;
1132
1133 switch (cmd) {
1134 case SNDCTL_SEQ_GETTIME:
1135 /*
1136 * ioctl needed by libtse
1137 */
1138 mtx_lock(&scp->seq_lock);
1139 *(int *)arg = timer_now(scp);
1140 mtx_unlock(&scp->seq_lock);
1141 SEQ_DEBUG(6, printf("seq_ioctl: gettime %d.\n", *(int *)arg));
1142 ret = 0;
1143 break;
1144 case SNDCTL_TMR_METRONOME:
1145 /* fallthrough */
1146 case SNDCTL_TMR_SOURCE:
1147 /*
1148 * Not implemented
1149 */
1150 ret = 0;
1151 break;
1152 case SNDCTL_TMR_TEMPO:
1153 event[1] = TMR_TEMPO;
1154 event[4] = *(int *)arg & 0xFF;
1155 event[5] = (*(int *)arg >> 8) & 0xFF;
1156 event[6] = (*(int *)arg >> 16) & 0xFF;
1157 event[7] = (*(int *)arg >> 24) & 0xFF;
1158 goto timerevent;
1159 case SNDCTL_TMR_TIMEBASE:
1160 event[1] = TMR_TIMERBASE;
1161 event[4] = *(int *)arg & 0xFF;
1162 event[5] = (*(int *)arg >> 8) & 0xFF;
1163 event[6] = (*(int *)arg >> 16) & 0xFF;
1164 event[7] = (*(int *)arg >> 24) & 0xFF;
1165 goto timerevent;
1166 case SNDCTL_TMR_START:
1167 event[1] = TMR_START;
1168 goto timerevent;
1169 case SNDCTL_TMR_STOP:
1170 event[1] = TMR_STOP;
1171 goto timerevent;
1172 case SNDCTL_TMR_CONTINUE:
1173 event[1] = TMR_CONTINUE;
1174 timerevent:
1175 event[0] = EV_TIMING;
1176 mtx_lock(&scp->seq_lock);
1177 if (!scp->music) {
1178 ret = EINVAL;
1179 mtx_unlock(&scp->seq_lock);
1180 break;
1181 }
1182 seq_processevent(scp, event);
1183 mtx_unlock(&scp->seq_lock);
1184 break;
1185 case SNDCTL_TMR_SELECT:
1186 SEQ_DEBUG(2,
1187 printf("seq_ioctl: SNDCTL_TMR_SELECT not supported\n"));
1188 ret = EINVAL;
1189 break;
1190 case SNDCTL_SEQ_SYNC:
1191 if (mode == O_RDONLY) {
1192 ret = 0;
1193 break;
1194 }
1195 mtx_lock(&scp->seq_lock);
1196 ret = seq_sync(scp);
1197 mtx_unlock(&scp->seq_lock);
1198 break;
1199 case SNDCTL_SEQ_PANIC:
1200 /* fallthrough */
1201 case SNDCTL_SEQ_RESET:
1202 /*
1203 * SNDCTL_SEQ_PANIC == SNDCTL_SEQ_RESET
1204 */
1205 mtx_lock(&scp->seq_lock);
1206 seq_reset(scp);
1207 mtx_unlock(&scp->seq_lock);
1208 ret = 0;
1209 break;
1210 case SNDCTL_SEQ_TESTMIDI:
1211 mtx_lock(&scp->seq_lock);
1212 /*
1213 * TODO: SNDCTL_SEQ_TESTMIDI now means "can I write to the
1214 * device?".
1215 */
1216 mtx_unlock(&scp->seq_lock);
1217 break;
1218 #if 0
1219 case SNDCTL_SEQ_GETINCOUNT:
1220 if (mode == O_WRONLY)
1221 *(int *)arg = 0;
1222 else {
1223 mtx_lock(&scp->seq_lock);
1224 *(int *)arg = scp->in_q.rl;
1225 mtx_unlock(&scp->seq_lock);
1226 SEQ_DEBUG(printf("seq_ioctl: incount %d.\n",
1227 *(int *)arg));
1228 }
1229 ret = 0;
1230 break;
1231 case SNDCTL_SEQ_GETOUTCOUNT:
1232 if (mode == O_RDONLY)
1233 *(int *)arg = 0;
1234 else {
1235 mtx_lock(&scp->seq_lock);
1236 *(int *)arg = scp->out_q.fl;
1237 mtx_unlock(&scp->seq_lock);
1238 SEQ_DEBUG(printf("seq_ioctl: outcount %d.\n",
1239 *(int *)arg));
1240 }
1241 ret = 0;
1242 break;
1243 #endif
1244 case SNDCTL_SEQ_CTRLRATE:
1245 if (*(int *)arg != 0) {
1246 ret = EINVAL;
1247 break;
1248 }
1249 mtx_lock(&scp->seq_lock);
1250 *(int *)arg = scp->timerbase;
1251 mtx_unlock(&scp->seq_lock);
1252 SEQ_DEBUG(3, printf("seq_ioctl: ctrlrate %d.\n", *(int *)arg));
1253 ret = 0;
1254 break;
1255 /*
1256 * TODO: ioctl SNDCTL_SEQ_RESETSAMPLES
1257 */
1258 #if 0
1259 case SNDCTL_SEQ_RESETSAMPLES:
1260 mtx_lock(&scp->seq_lock);
1261 ret = lookup_mididev(scp, *(int *)arg, LOOKUP_OPEN, &md);
1262 mtx_unlock(&scp->seq_lock);
1263 if (ret != 0)
1264 break;
1265 ret = midi_ioctl(MIDIMKDEV(major(i_dev), *(int *)arg,
1266 SND_DEV_MIDIN), cmd, arg, mode, td);
1267 break;
1268 #endif
1269 case SNDCTL_SEQ_NRSYNTHS:
1270 mtx_lock(&scp->seq_lock);
1271 *(int *)arg = scp->midi_number;
1272 mtx_unlock(&scp->seq_lock);
1273 SEQ_DEBUG(3, printf("seq_ioctl: synths %d.\n", *(int *)arg));
1274 ret = 0;
1275 break;
1276 case SNDCTL_SEQ_NRMIDIS:
1277 mtx_lock(&scp->seq_lock);
1278 if (scp->music)
1279 *(int *)arg = 0;
1280 else {
1281 /*
1282 * TODO: count the numbder of devices that can WRITERAW
1283 */
1284 *(int *)arg = scp->midi_number;
1285 }
1286 mtx_unlock(&scp->seq_lock);
1287 SEQ_DEBUG(3, printf("seq_ioctl: midis %d.\n", *(int *)arg));
1288 ret = 0;
1289 break;
1290 /*
1291 * TODO: ioctl SNDCTL_SYNTH_MEMAVL
1292 */
1293 #if 0
1294 case SNDCTL_SYNTH_MEMAVL:
1295 mtx_lock(&scp->seq_lock);
1296 ret = lookup_mididev(scp, *(int *)arg, LOOKUP_OPEN, &md);
1297 mtx_unlock(&scp->seq_lock);
1298 if (ret != 0)
1299 break;
1300 ret = midi_ioctl(MIDIMKDEV(major(i_dev), *(int *)arg,
1301 SND_DEV_MIDIN), cmd, arg, mode, td);
1302 break;
1303 #endif
1304 case SNDCTL_SEQ_OUTOFBAND:
1305 for (ret = 0; ret < EV_SZ; ret++)
1306 event[ret] = (u_char)arg[0];
1307
1308 mtx_lock(&scp->seq_lock);
1309 if (scp->music)
1310 ret = seq_processevent(scp, event);
1311 else {
1312 if (seq_convertold(event, newevent) > 0)
1313 ret = seq_processevent(scp, newevent);
1314 else
1315 ret = EINVAL;
1316 }
1317 mtx_unlock(&scp->seq_lock);
1318 break;
1319 case SNDCTL_SYNTH_INFO:
1320 synthinfo = (struct synth_info *)arg;
1321 midiunit = synthinfo->device;
1322 mtx_lock(&scp->seq_lock);
1323 if (seq_fetch_mid(scp, midiunit, &md) == 0) {
1324 bzero(synthinfo, sizeof(*synthinfo));
1325 synthinfo->name[0] = 'f';
1326 synthinfo->name[1] = 'a';
1327 synthinfo->name[2] = 'k';
1328 synthinfo->name[3] = 'e';
1329 synthinfo->name[4] = 's';
1330 synthinfo->name[5] = 'y';
1331 synthinfo->name[6] = 'n';
1332 synthinfo->name[7] = 't';
1333 synthinfo->name[8] = 'h';
1334 synthinfo->device = midiunit;
1335 synthinfo->synth_type = SYNTH_TYPE_MIDI;
1336 synthinfo->capabilities = scp->midi_flags[midiunit];
1337 ret = 0;
1338 } else
1339 ret = EINVAL;
1340 mtx_unlock(&scp->seq_lock);
1341 break;
1342 case SNDCTL_MIDI_INFO:
1343 midiinfo = (struct midi_info *)arg;
1344 midiunit = midiinfo->device;
1345 mtx_lock(&scp->seq_lock);
1346 if (seq_fetch_mid(scp, midiunit, &md) == 0) {
1347 bzero(midiinfo, sizeof(*midiinfo));
1348 midiinfo->name[0] = 'f';
1349 midiinfo->name[1] = 'a';
1350 midiinfo->name[2] = 'k';
1351 midiinfo->name[3] = 'e';
1352 midiinfo->name[4] = 'm';
1353 midiinfo->name[5] = 'i';
1354 midiinfo->name[6] = 'd';
1355 midiinfo->name[7] = 'i';
1356 midiinfo->device = midiunit;
1357 midiinfo->capabilities = scp->midi_flags[midiunit];
1358 /*
1359 * TODO: What devtype?
1360 */
1361 midiinfo->dev_type = 0x01;
1362 ret = 0;
1363 } else
1364 ret = EINVAL;
1365 mtx_unlock(&scp->seq_lock);
1366 break;
1367 case SNDCTL_SEQ_THRESHOLD:
1368 mtx_lock(&scp->seq_lock);
1369 RANGE(*(int *)arg, 1, MIDIQ_SIZE(scp->out_q) - 1);
1370 scp->out_water = *(int *)arg;
1371 mtx_unlock(&scp->seq_lock);
1372 SEQ_DEBUG(3, printf("seq_ioctl: water %d.\n", *(int *)arg));
1373 ret = 0;
1374 break;
1375 case SNDCTL_MIDI_PRETIME:
1376 tmp = *(int *)arg;
1377 if (tmp < 0)
1378 tmp = 0;
1379 mtx_lock(&scp->seq_lock);
1380 scp->pre_event_timeout = (hz * tmp) / 10;
1381 *(int *)arg = scp->pre_event_timeout;
1382 mtx_unlock(&scp->seq_lock);
1383 SEQ_DEBUG(3, printf("seq_ioctl: pretime %d.\n", *(int *)arg));
1384 ret = 0;
1385 break;
1386 case SNDCTL_FM_4OP_ENABLE:
1387 case SNDCTL_PMGR_IFACE:
1388 case SNDCTL_PMGR_ACCESS:
1389 /*
1390 * Patch manager and fm are ded, ded, ded.
1391 */
1392 /* fallthrough */
1393 default:
1394 /*
1395 * TODO: Consider ioctl default case.
1396 * Old code used to
1397 * if ((scp->fflags & O_ACCMODE) == FREAD) {
1398 * ret = EIO;
1399 * break;
1400 * }
1401 * Then pass on the ioctl to device 0
1402 */
1403 SEQ_DEBUG(2,
1404 printf("seq_ioctl: unsupported IOCTL %ld.\n", cmd));
1405 ret = EINVAL;
1406 break;
1407 }
1408
1409 return ret;
1410 }
1411
1412 int
1413 seq_poll(struct cdev *i_dev, int events, struct thread *td)
1414 {
1415 int ret, lim;
1416 struct seq_softc *scp = i_dev->si_drv1;
1417
1418 SEQ_DEBUG(3, printf("seq_poll: unit %d.\n", scp->unit));
1419 SEQ_DEBUG(1, printf("seq_poll: unit %d.\n", scp->unit));
1420
1421 mtx_lock(&scp->seq_lock);
1422
1423 ret = 0;
1424
1425 /* Look up the apropriate queue and select it. */
1426 if ((events & (POLLOUT | POLLWRNORM)) != 0) {
1427 /* Start playing. */
1428 scp->playing = 1;
1429 cv_broadcast(&scp->state_cv);
1430 cv_broadcast(&scp->out_cv);
1431
1432 lim = scp->out_water;
1433
1434 if (MIDIQ_AVAIL(scp->out_q) < lim)
1435 /* No enough space, record select. */
1436 selrecord(td, &scp->out_sel);
1437 else
1438 /* We can write now. */
1439 ret |= events & (POLLOUT | POLLWRNORM);
1440 }
1441 if ((events & (POLLIN | POLLRDNORM)) != 0) {
1442 /* TODO: Start recording. */
1443
1444 /* Find out the boundary. */
1445 lim = 1;
1446 if (MIDIQ_LEN(scp->in_q) < lim)
1447 /* No data ready, record select. */
1448 selrecord(td, &scp->in_sel);
1449 else
1450 /* We can read now. */
1451 ret |= events & (POLLIN | POLLRDNORM);
1452 }
1453 mtx_unlock(&scp->seq_lock);
1454
1455 return (ret);
1456 }
1457
1458 #if 0
1459 static void
1460 sein_qtr(void *p, void /* mididev_info */ *md)
1461 {
1462 struct seq_softc *scp;
1463
1464 scp = (struct seq_softc *)p;
1465
1466 mtx_lock(&scp->seq_lock);
1467
1468 /* Restart playing if we have the data to output. */
1469 if (scp->queueout_pending)
1470 seq_callback(scp, SEQ_CB_START | SEQ_CB_WR);
1471 /* Check the midi device if we are reading. */
1472 if ((scp->flags & SEQ_F_READING) != 0)
1473 seq_midiinput(scp, md);
1474
1475 mtx_unlock(&scp->seq_lock);
1476 }
1477
1478 #endif
1479 /*
1480 * seq_convertold
1481 * Was the old playevent. Use this to convert and old
1482 * style /dev/sequencer event to a /dev/music event
1483 */
1484 static int
1485 seq_convertold(u_char *event, u_char *out)
1486 {
1487 int used;
1488 u_char dev, chn, note, vel;
1489
1490 out[0] = out[1] = out[2] = out[3] = out[4] = out[5] = out[6] =
1491 out[7] = 0;
1492
1493 dev = 0;
1494 chn = event[1];
1495 note = event[2];
1496 vel = event[3];
1497
1498 used = 0;
1499
1500 restart:
1501 /*
1502 * TODO: Debug statement
1503 */
1504 switch (event[0]) {
1505 case EV_TIMING:
1506 case EV_CHN_VOICE:
1507 case EV_CHN_COMMON:
1508 case EV_SYSEX:
1509 case EV_SEQ_LOCAL:
1510 out[0] = event[0];
1511 out[1] = event[1];
1512 out[2] = event[2];
1513 out[3] = event[3];
1514 out[4] = event[4];
1515 out[5] = event[5];
1516 out[6] = event[6];
1517 out[7] = event[7];
1518 used += 8;
1519 break;
1520 case SEQ_NOTEOFF:
1521 out[0] = EV_CHN_VOICE;
1522 out[1] = dev;
1523 out[2] = MIDI_NOTEOFF;
1524 out[3] = chn;
1525 out[4] = note;
1526 out[5] = 255;
1527 used += 4;
1528 break;
1529
1530 case SEQ_NOTEON:
1531 out[0] = EV_CHN_VOICE;
1532 out[1] = dev;
1533 out[2] = MIDI_NOTEON;
1534 out[3] = chn;
1535 out[4] = note;
1536 out[5] = vel;
1537 used += 4;
1538 break;
1539
1540 /*
1541 * wait delay = (event[2] << 16) + (event[3] << 8) + event[4]
1542 */
1543
1544 case SEQ_PGMCHANGE:
1545 out[0] = EV_CHN_COMMON;
1546 out[1] = dev;
1547 out[2] = MIDI_PGM_CHANGE;
1548 out[3] = chn;
1549 out[4] = note;
1550 out[5] = vel;
1551 used += 4;
1552 break;
1553 /*
1554 out[0] = EV_TIMING;
1555 out[1] = dev;
1556 out[2] = MIDI_PGM_CHANGE;
1557 out[3] = chn;
1558 out[4] = note;
1559 out[5] = vel;
1560 SEQ_DEBUG(4,printf("seq_playevent: synctimer\n"));
1561 break;
1562 */
1563
1564 case SEQ_MIDIPUTC:
1565 SEQ_DEBUG(4,
1566 printf("seq_playevent: put data 0x%02x, unit %d.\n",
1567 event[1], event[2]));
1568 /*
1569 * Pass through to the midi device.
1570 * device = event[2]
1571 * data = event[1]
1572 */
1573 out[0] = SEQ_MIDIPUTC;
1574 out[1] = dev;
1575 out[2] = chn;
1576 used += 4;
1577 break;
1578 #ifdef notyet
1579 case SEQ_ECHO:
1580 /*
1581 * This isn't handled here yet because I don't know if I can
1582 * just use four bytes events. There might be consequences
1583 * in the _read routing
1584 */
1585 if (seq_copytoinput(scp, event, 4) == EAGAIN) {
1586 ret = QUEUEFULL;
1587 break;
1588 }
1589 ret = MORE;
1590 break;
1591 #endif
1592 case SEQ_EXTENDED:
1593 switch (event[1]) {
1594 case SEQ_NOTEOFF:
1595 case SEQ_NOTEON:
1596 case SEQ_PGMCHANGE:
1597 event++;
1598 used = 4;
1599 goto restart;
1600 break;
1601 case SEQ_AFTERTOUCH:
1602 /*
1603 * SYNTH_AFTERTOUCH(md, event[3], event[4])
1604 */
1605 case SEQ_BALANCE:
1606 /*
1607 * SYNTH_PANNING(md, event[3], (char)event[4])
1608 */
1609 case SEQ_CONTROLLER:
1610 /*
1611 * SYNTH_CONTROLLER(md, event[3], event[4], *(short *)&event[5])
1612 */
1613 case SEQ_VOLMODE:
1614 /*
1615 * SYNTH_VOLUMEMETHOD(md, event[3])
1616 */
1617 default:
1618 SEQ_DEBUG(2,
1619 printf("seq_convertold: SEQ_EXTENDED type %d"
1620 "not handled\n", event[1]));
1621 break;
1622 }
1623 break;
1624 case SEQ_WAIT:
1625 out[0] = EV_TIMING;
1626 out[1] = TMR_WAIT_REL;
1627 out[4] = event[2];
1628 out[5] = event[3];
1629 out[6] = event[4];
1630
1631 SEQ_DEBUG(5, printf("SEQ_WAIT %d",
1632 event[2] + (event[3] << 8) + (event[4] << 24)));
1633
1634 used += 4;
1635 break;
1636
1637 case SEQ_ECHO:
1638 case SEQ_SYNCTIMER:
1639 case SEQ_PRIVATE:
1640 default:
1641 SEQ_DEBUG(2,
1642 printf("seq_convertold: event type %d not handled %d %d %d\n",
1643 event[0], event[1], event[2], event[3]));
1644 break;
1645 }
1646 return used;
1647 }
1648
1649 /*
1650 * Writting to the sequencer buffer never blocks and drops
1651 * input which cannot be queued
1652 */
1653 void
1654 seq_copytoinput(struct seq_softc *scp, u_char *event, int len)
1655 {
1656
1657 mtx_assert(&scp->seq_lock, MA_OWNED);
1658
1659 if (MIDIQ_AVAIL(scp->in_q) < len) {
1660 /*
1661 * ENOROOM? EINPUTDROPPED? ETOUGHLUCK?
1662 */
1663 SEQ_DEBUG(2, printf("seq_copytoinput: queue full\n"));
1664 } else {
1665 MIDIQ_ENQ(scp->in_q, event, len);
1666 selwakeup(&scp->in_sel);
1667 cv_broadcast(&scp->in_cv);
1668 }
1669
1670 }
1671
1672 static int
1673 seq_chnvoice(struct seq_softc *scp, kobj_t md, u_char *event)
1674 {
1675 int ret, voice;
1676 u_char cmd, chn, note, parm;
1677
1678 ret = 0;
1679 cmd = event[2];
1680 chn = event[3];
1681 note = event[4];
1682 parm = event[5];
1683
1684 mtx_assert(&scp->seq_lock, MA_OWNED);
1685
1686 SEQ_DEBUG(5, printf("seq_chnvoice: unit %d, dev %d, cmd %s,"
1687 " chn %d, note %d, parm %d.\n", scp->unit, event[1],
1688 midi_cmdname(cmd, cmdtab_seqcv), chn, note, parm));
1689
1690 voice = SYNTH_ALLOC(md, chn, note);
1691
1692 mtx_unlock(&scp->seq_lock);
1693
1694 switch (cmd) {
1695 case MIDI_NOTEON:
1696 if (note < 128 || note == 255) {
1697 #if 0
1698 if (scp->music && chn == 9) {
1699 /*
1700 * This channel is a percussion. The note
1701 * number is the patch number.
1702 */
1703 /*
1704 mtx_unlock(&scp->seq_lock);
1705 if (SYNTH_SETINSTR(md, voice, 128 + note)
1706 == EAGAIN) {
1707 mtx_lock(&scp->seq_lock);
1708 return (QUEUEFULL);
1709 }
1710 mtx_lock(&scp->seq_lock);
1711 */
1712 note = 60; /* Middle C. */
1713 }
1714 #endif
1715 if (scp->music) {
1716 /*
1717 mtx_unlock(&scp->seq_lock);
1718 if (SYNTH_SETUPVOICE(md, voice, chn)
1719 == EAGAIN) {
1720 mtx_lock(&scp->seq_lock);
1721 return (QUEUEFULL);
1722 }
1723 mtx_lock(&scp->seq_lock);
1724 */
1725 }
1726 SYNTH_STARTNOTE(md, voice, note, parm);
1727 }
1728 break;
1729 case MIDI_NOTEOFF:
1730 SYNTH_KILLNOTE(md, voice, note, parm);
1731 break;
1732 case MIDI_KEY_PRESSURE:
1733 SYNTH_AFTERTOUCH(md, voice, parm);
1734 break;
1735 default:
1736 ret = 1;
1737 SEQ_DEBUG(2, printf("seq_chnvoice event type %d not handled\n",
1738 event[1]));
1739 break;
1740 }
1741
1742 mtx_lock(&scp->seq_lock);
1743 return ret;
1744 }
1745
1746 static int
1747 seq_chncommon(struct seq_softc *scp, kobj_t md, u_char *event)
1748 {
1749 int ret;
1750 u_short w14;
1751 u_char cmd, chn, p1;
1752
1753 ret = 0;
1754 cmd = event[2];
1755 chn = event[3];
1756 p1 = event[4];
1757 w14 = *(u_short *)&event[6];
1758
1759 SEQ_DEBUG(5, printf("seq_chncommon: unit %d, dev %d, cmd %s, chn %d,"
1760 " p1 %d, w14 %d.\n", scp->unit, event[1],
1761 midi_cmdname(cmd, cmdtab_seqccmn), chn, p1, w14));
1762 mtx_unlock(&scp->seq_lock);
1763 switch (cmd) {
1764 case MIDI_PGM_CHANGE:
1765 SEQ_DEBUG(4, printf("seq_chncommon pgmchn chn %d pg %d\n",
1766 chn, p1));
1767 SYNTH_SETINSTR(md, chn, p1);
1768 break;
1769 case MIDI_CTL_CHANGE:
1770 SEQ_DEBUG(4, printf("seq_chncommon ctlch chn %d pg %d %d\n",
1771 chn, p1, w14));
1772 SYNTH_CONTROLLER(md, chn, p1, w14);
1773 break;
1774 case MIDI_PITCH_BEND:
1775 if (scp->music) {
1776 /*
1777 * TODO: MIDI_PITCH_BEND
1778 */
1779 #if 0
1780 mtx_lock(&md->synth.vc_mtx);
1781 md->synth.chn_info[chn].bender_value = w14;
1782 if (md->midiunit >= 0) {
1783 /*
1784 * Handle all of the notes playing on this
1785 * channel.
1786 */
1787 key = ((int)chn << 8);
1788 for (i = 0; i < md->synth.alloc.max_voice; i++)
1789 if ((md->synth.alloc.map[i] & 0xff00) == key) {
1790 mtx_unlock(&md->synth.vc_mtx);
1791 mtx_unlock(&scp->seq_lock);
1792 if (md->synth.bender(md, i, w14) == EAGAIN) {
1793 mtx_lock(&scp->seq_lock);
1794 return (QUEUEFULL);
1795 }
1796 mtx_lock(&scp->seq_lock);
1797 }
1798 } else {
1799 mtx_unlock(&md->synth.vc_mtx);
1800 mtx_unlock(&scp->seq_lock);
1801 if (md->synth.bender(md, chn, w14) == EAGAIN) {
1802 mtx_lock(&scp->seq_lock);
1803 return (QUEUEFULL);
1804 }
1805 mtx_lock(&scp->seq_lock);
1806 }
1807 #endif
1808 } else
1809 SYNTH_BENDER(md, chn, w14);
1810 break;
1811 default:
1812 ret = 1;
1813 SEQ_DEBUG(2,
1814 printf("seq_chncommon event type %d not handled.\n",
1815 event[1]));
1816 break;
1817
1818 }
1819 mtx_lock(&scp->seq_lock);
1820 return ret;
1821 }
1822
1823 static int
1824 seq_timing(struct seq_softc *scp, u_char *event)
1825 {
1826 int param;
1827 int ret;
1828
1829 ret = 0;
1830 param = event[4] + (event[5] << 8) +
1831 (event[6] << 16) + (event[7] << 24);
1832
1833 SEQ_DEBUG(5, printf("seq_timing: unit %d, cmd %d, param %d.\n",
1834 scp->unit, event[1], param));
1835 switch (event[1]) {
1836 case TMR_WAIT_REL:
1837 timer_wait(scp, param, 0);
1838 break;
1839 case TMR_WAIT_ABS:
1840 timer_wait(scp, param, 1);
1841 break;
1842 case TMR_START:
1843 timer_start(scp);
1844 cv_broadcast(&scp->reset_cv);
1845 break;
1846 case TMR_STOP:
1847 timer_stop(scp);
1848 /*
1849 * The following cv_broadcast isn't needed since we only
1850 * wait for 0->1 transitions. It probably won't hurt
1851 */
1852 cv_broadcast(&scp->reset_cv);
1853 break;
1854 case TMR_CONTINUE:
1855 timer_continue(scp);
1856 cv_broadcast(&scp->reset_cv);
1857 break;
1858 case TMR_TEMPO:
1859 if (param < 8)
1860 param = 8;
1861 if (param > 360)
1862 param = 360;
1863 SEQ_DEBUG(4, printf("Timer set tempo %d\n", param));
1864 timer_setvals(scp, param, scp->timerbase);
1865 break;
1866 case TMR_TIMERBASE:
1867 if (param < 1)
1868 param = 1;
1869 if (param > 1000)
1870 param = 1000;
1871 SEQ_DEBUG(4, printf("Timer set timerbase %d\n", param));
1872 timer_setvals(scp, scp->tempo, param);
1873 break;
1874 case TMR_ECHO:
1875 /*
1876 * TODO: Consider making 4-byte events for /dev/sequencer
1877 * PRO: Maybe needed by legacy apps
1878 * CON: soundcard.h has been warning for a while many years
1879 * to expect 8 byte events.
1880 */
1881 #if 0
1882 if (scp->music)
1883 seq_copytoinput(scp, event, 8);
1884 else {
1885 param = (param << 8 | SEQ_ECHO);
1886 seq_copytoinput(scp, (u_char *)¶m, 4);
1887 }
1888 #else
1889 seq_copytoinput(scp, event, 8);
1890 #endif
1891 break;
1892 default:
1893 SEQ_DEBUG(2, printf("seq_timing event type %d not handled.\n",
1894 event[1]));
1895 ret = 1;
1896 break;
1897 }
1898 return ret;
1899 }
1900
1901 static int
1902 seq_local(struct seq_softc *scp, u_char *event)
1903 {
1904 int ret;
1905
1906 ret = 0;
1907 mtx_assert(&scp->seq_lock, MA_OWNED);
1908
1909 SEQ_DEBUG(5, printf("seq_local: unit %d, cmd %d\n", scp->unit,
1910 event[1]));
1911 switch (event[1]) {
1912 default:
1913 SEQ_DEBUG(1, printf("seq_local event type %d not handled\n",
1914 event[1]));
1915 ret = 1;
1916 break;
1917 }
1918 return ret;
1919 }
1920
1921 static int
1922 seq_sysex(struct seq_softc *scp, kobj_t md, u_char *event)
1923 {
1924 int i, l;
1925
1926 mtx_assert(&scp->seq_lock, MA_OWNED);
1927 SEQ_DEBUG(5, printf("seq_sysex: unit %d device %d\n", scp->unit,
1928 event[1]));
1929 l = 0;
1930 for (i = 0; i < 6 && event[i + 2] != 0xff; i++)
1931 l = i + 1;
1932 if (l > 0) {
1933 mtx_unlock(&scp->seq_lock);
1934 if (SYNTH_SENDSYSEX(md, &event[2], l) == EAGAIN) {
1935 mtx_lock(&scp->seq_lock);
1936 return 1;
1937 }
1938 mtx_lock(&scp->seq_lock);
1939 }
1940 return 0;
1941 }
1942
1943 /*
1944 * Reset no longer closes the raw devices nor seq_sync's
1945 * Callers are IOCTL and seq_close
1946 */
1947 static void
1948 seq_reset(struct seq_softc *scp)
1949 {
1950 int chn, i;
1951 kobj_t m;
1952
1953 mtx_assert(&scp->seq_lock, MA_OWNED);
1954
1955 SEQ_DEBUG(5, printf("seq_reset: unit %d.\n", scp->unit));
1956
1957 /*
1958 * Stop reading and writing.
1959 */
1960
1961 /* scp->recording = 0; */
1962 scp->playing = 0;
1963 cv_broadcast(&scp->state_cv);
1964 cv_broadcast(&scp->out_cv);
1965 cv_broadcast(&scp->reset_cv);
1966
1967 /*
1968 * For now, don't reset the timers.
1969 */
1970 MIDIQ_CLEAR(scp->in_q);
1971 MIDIQ_CLEAR(scp->out_q);
1972
1973 for (i = 0; i < scp->midi_number; i++) {
1974 m = scp->midis[i];
1975 mtx_unlock(&scp->seq_lock);
1976 SYNTH_RESET(m);
1977 for (chn = 0; chn < 16; chn++) {
1978 SYNTH_CONTROLLER(m, chn, 123, 0);
1979 SYNTH_CONTROLLER(m, chn, 121, 0);
1980 SYNTH_BENDER(m, chn, 1 << 13);
1981 }
1982 mtx_lock(&scp->seq_lock);
1983 }
1984 }
1985
1986 /*
1987 * seq_sync
1988 * *really* flush the output queue
1989 * flush the event queue, then flush the synthsisers.
1990 * Callers are IOCTL and close
1991 */
1992
1993 #define SEQ_SYNC_TIMEOUT 8
1994 static int
1995 seq_sync(struct seq_softc *scp)
1996 {
1997 int i, rl, sync[16], done;
1998
1999 mtx_assert(&scp->seq_lock, MA_OWNED);
2000
2001 SEQ_DEBUG(4, printf("seq_sync: unit %d.\n", scp->unit));
2002
2003 /*
2004 * Wait until output queue is empty. Check every so often to see if
2005 * the queue is moving along. If it isn't just abort.
2006 */
2007 while (!MIDIQ_EMPTY(scp->out_q)) {
2008
2009 if (!scp->playing) {
2010 scp->playing = 1;
2011 cv_broadcast(&scp->state_cv);
2012 cv_broadcast(&scp->out_cv);
2013 }
2014 rl = MIDIQ_LEN(scp->out_q);
2015
2016 i = cv_timedwait_sig(&scp->out_cv,
2017 &scp->seq_lock, SEQ_SYNC_TIMEOUT * hz);
2018
2019 if (i == EINTR || i == ERESTART) {
2020 if (i == EINTR) {
2021 /*
2022 * XXX: I don't know why we stop playing
2023 */
2024 scp->playing = 0;
2025 cv_broadcast(&scp->out_cv);
2026 }
2027 return i;
2028 }
2029 if (i == EWOULDBLOCK && rl == MIDIQ_LEN(scp->out_q) &&
2030 scp->waiting == 0) {
2031 /*
2032 * A queue seems to be stuck up. Give up and clear
2033 * queues.
2034 */
2035 MIDIQ_CLEAR(scp->out_q);
2036 scp->playing = 0;
2037 cv_broadcast(&scp->state_cv);
2038 cv_broadcast(&scp->out_cv);
2039 cv_broadcast(&scp->reset_cv);
2040
2041 /*
2042 * TODO: Consider if the raw devices need to be flushed
2043 */
2044
2045 SEQ_DEBUG(1, printf("seq_sync queue stuck, aborting\n"));
2046
2047 return i;
2048 }
2049 }
2050
2051 scp->playing = 0;
2052 /*
2053 * Since syncing a midi device might block, unlock scp->seq_lock.
2054 */
2055
2056 mtx_unlock(&scp->seq_lock);
2057 for (i = 0; i < scp->midi_number; i++)
2058 sync[i] = 1;
2059
2060 do {
2061 done = 1;
2062 for (i = 0; i < scp->midi_number; i++)
2063 if (sync[i]) {
2064 if (SYNTH_INSYNC(scp->midis[i]) == 0)
2065 sync[i] = 0;
2066 else
2067 done = 0;
2068 }
2069 if (!done)
2070 DELAY(5000);
2071
2072 } while (!done);
2073
2074 mtx_lock(&scp->seq_lock);
2075 return 0;
2076 }
2077
2078 char *
2079 midi_cmdname(int cmd, midi_cmdtab *tab)
2080 {
2081 while (tab->name != NULL) {
2082 if (cmd == tab->cmd)
2083 return (tab->name);
2084 tab++;
2085 }
2086
2087 return ("unknown");
2088 }
Cache object: 39c9f7d458628520dfca6c161d8d1a2f
|