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: releng/8.0/sys/dev/sound/midi/sequencer.c 194990 2009-06-25 18:46:30Z kib $");
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/proc.h>
44 #include <sys/sysctl.h>
45
46 #include <sys/kernel.h> /* for DATA_SET */
47
48 #include <sys/module.h>
49 #include <sys/conf.h>
50 #include <sys/file.h>
51 #include <sys/uio.h>
52 #include <sys/syslog.h>
53 #include <sys/errno.h>
54 #include <sys/malloc.h>
55 #include <sys/bus.h>
56 #include <machine/resource.h>
57 #include <machine/bus.h>
58 #include <machine/clock.h> /* for DELAY */
59 #include <sys/soundcard.h>
60 #include <sys/rman.h>
61 #include <sys/mman.h>
62 #include <sys/poll.h>
63 #include <sys/mutex.h>
64 #include <sys/condvar.h>
65 #include <sys/kthread.h>
66 #include <sys/unistd.h>
67 #include <sys/selinfo.h>
68
69 #ifdef HAVE_KERNEL_OPTION_HEADERS
70 #include "opt_snd.h"
71 #endif
72
73 #include <dev/sound/midi/midi.h>
74 #include <dev/sound/midi/midiq.h>
75 #include "synth_if.h"
76
77 #include <dev/sound/midi/sequencer.h>
78
79 #define TMR_TIMERBASE 13
80
81 #define SND_DEV_SEQ 1 /* Sequencer output /dev/sequencer (FM
82 * synthesizer and MIDI output) */
83 #define SND_DEV_MUSIC 8 /* /dev/music, level 2 interface */
84
85 /* Length of a sequencer event. */
86 #define EV_SZ 8
87 #define IEV_SZ 8
88
89 /* Lookup modes */
90 #define LOOKUP_EXIST (0)
91 #define LOOKUP_OPEN (1)
92 #define LOOKUP_CLOSE (2)
93
94 #define PCMMKMINOR(u, d, c) \
95 ((((c) & 0xff) << 16) | (((u) & 0x0f) << 4) | ((d) & 0x0f))
96 #define MIDIMKMINOR(u, d, c) PCMMKMINOR(u, d, c)
97 #define MIDIUNIT(y) ((dev2unit(y) >> 4) & 0x0f)
98 #define MIDIDEV(y) (dev2unit(y) & 0x0f)
99
100 /* These are the entries to the sequencer driver. */
101 static d_open_t seq_open;
102 static d_close_t seq_close;
103 static d_ioctl_t seq_ioctl;
104 static d_read_t seq_read;
105 static d_write_t seq_write;
106 static d_poll_t seq_poll;
107
108 static struct cdevsw seq_cdevsw = {
109 .d_version = D_VERSION,
110 .d_open = seq_open,
111 .d_close = seq_close,
112 .d_read = seq_read,
113 .d_write = seq_write,
114 .d_ioctl = seq_ioctl,
115 .d_poll = seq_poll,
116 .d_name = "sequencer",
117 };
118
119 struct seq_softc {
120 KOBJ_FIELDS;
121
122 struct mtx seq_lock, q_lock;
123 struct cv empty_cv, reset_cv, in_cv, out_cv, state_cv, th_cv;
124
125 MIDIQ_HEAD(, u_char) in_q, out_q;
126
127 u_long flags;
128 /* Flags (protected by flag_mtx of mididev_info) */
129 int fflags; /* Access mode */
130 int music;
131
132 int out_water; /* Sequence output threshould */
133 snd_sync_parm sync_parm; /* AIOSYNC parameter set */
134 struct thread *sync_thread; /* AIOSYNCing thread */
135 struct selinfo in_sel, out_sel;
136 int midi_number;
137 struct cdev *seqdev, *musicdev;
138 int unit;
139 int maxunits;
140 kobj_t *midis;
141 int *midi_flags;
142 kobj_t mapper;
143 void *mapper_cookie;
144 struct timeval timerstop, timersub;
145 int timerbase, tempo;
146 int timerrun;
147 int done;
148 int playing;
149 int recording;
150 int busy;
151 int pre_event_timeout;
152 int waiting;
153 };
154
155 /*
156 * Module specific stuff, including how many sequecers
157 * we currently own.
158 */
159
160 SYSCTL_NODE(_hw_midi, OID_AUTO, seq, CTLFLAG_RD, 0, "Midi sequencer");
161
162 int seq_debug;
163 /* XXX: should this be moved into debug.midi? */
164 SYSCTL_INT(_hw_midi_seq, OID_AUTO, debug, CTLFLAG_RW, &seq_debug, 0, "");
165
166 midi_cmdtab cmdtab_seqevent[] = {
167 {SEQ_NOTEOFF, "SEQ_NOTEOFF"},
168 {SEQ_NOTEON, "SEQ_NOTEON"},
169 {SEQ_WAIT, "SEQ_WAIT"},
170 {SEQ_PGMCHANGE, "SEQ_PGMCHANGE"},
171 {SEQ_SYNCTIMER, "SEQ_SYNCTIMER"},
172 {SEQ_MIDIPUTC, "SEQ_MIDIPUTC"},
173 {SEQ_DRUMON, "SEQ_DRUMON"},
174 {SEQ_DRUMOFF, "SEQ_DRUMOFF"},
175 {SEQ_ECHO, "SEQ_ECHO"},
176 {SEQ_AFTERTOUCH, "SEQ_AFTERTOUCH"},
177 {SEQ_CONTROLLER, "SEQ_CONTROLLER"},
178 {SEQ_BALANCE, "SEQ_BALANCE"},
179 {SEQ_VOLMODE, "SEQ_VOLMODE"},
180 {SEQ_FULLSIZE, "SEQ_FULLSIZE"},
181 {SEQ_PRIVATE, "SEQ_PRIVATE"},
182 {SEQ_EXTENDED, "SEQ_EXTENDED"},
183 {EV_SEQ_LOCAL, "EV_SEQ_LOCAL"},
184 {EV_TIMING, "EV_TIMING"},
185 {EV_CHN_COMMON, "EV_CHN_COMMON"},
186 {EV_CHN_VOICE, "EV_CHN_VOICE"},
187 {EV_SYSEX, "EV_SYSEX"},
188 {-1, NULL},
189 };
190
191 midi_cmdtab cmdtab_seqioctl[] = {
192 {SNDCTL_SEQ_RESET, "SNDCTL_SEQ_RESET"},
193 {SNDCTL_SEQ_SYNC, "SNDCTL_SEQ_SYNC"},
194 {SNDCTL_SYNTH_INFO, "SNDCTL_SYNTH_INFO"},
195 {SNDCTL_SEQ_CTRLRATE, "SNDCTL_SEQ_CTRLRATE"},
196 {SNDCTL_SEQ_GETOUTCOUNT, "SNDCTL_SEQ_GETOUTCOUNT"},
197 {SNDCTL_SEQ_GETINCOUNT, "SNDCTL_SEQ_GETINCOUNT"},
198 {SNDCTL_SEQ_PERCMODE, "SNDCTL_SEQ_PERCMODE"},
199 {SNDCTL_FM_LOAD_INSTR, "SNDCTL_FM_LOAD_INSTR"},
200 {SNDCTL_SEQ_TESTMIDI, "SNDCTL_SEQ_TESTMIDI"},
201 {SNDCTL_SEQ_RESETSAMPLES, "SNDCTL_SEQ_RESETSAMPLES"},
202 {SNDCTL_SEQ_NRSYNTHS, "SNDCTL_SEQ_NRSYNTHS"},
203 {SNDCTL_SEQ_NRMIDIS, "SNDCTL_SEQ_NRMIDIS"},
204 {SNDCTL_SEQ_GETTIME, "SNDCTL_SEQ_GETTIME"},
205 {SNDCTL_MIDI_INFO, "SNDCTL_MIDI_INFO"},
206 {SNDCTL_SEQ_THRESHOLD, "SNDCTL_SEQ_THRESHOLD"},
207 {SNDCTL_SYNTH_MEMAVL, "SNDCTL_SYNTH_MEMAVL"},
208 {SNDCTL_FM_4OP_ENABLE, "SNDCTL_FM_4OP_ENABLE"},
209 {SNDCTL_PMGR_ACCESS, "SNDCTL_PMGR_ACCESS"},
210 {SNDCTL_SEQ_PANIC, "SNDCTL_SEQ_PANIC"},
211 {SNDCTL_SEQ_OUTOFBAND, "SNDCTL_SEQ_OUTOFBAND"},
212 {SNDCTL_TMR_TIMEBASE, "SNDCTL_TMR_TIMEBASE"},
213 {SNDCTL_TMR_START, "SNDCTL_TMR_START"},
214 {SNDCTL_TMR_STOP, "SNDCTL_TMR_STOP"},
215 {SNDCTL_TMR_CONTINUE, "SNDCTL_TMR_CONTINUE"},
216 {SNDCTL_TMR_TEMPO, "SNDCTL_TMR_TEMPO"},
217 {SNDCTL_TMR_SOURCE, "SNDCTL_TMR_SOURCE"},
218 {SNDCTL_TMR_METRONOME, "SNDCTL_TMR_METRONOME"},
219 {SNDCTL_TMR_SELECT, "SNDCTL_TMR_SELECT"},
220 {SNDCTL_MIDI_PRETIME, "SNDCTL_MIDI_PRETIME"},
221 {AIONWRITE, "AIONWRITE"},
222 {AIOGSIZE, "AIOGSIZE"},
223 {AIOSSIZE, "AIOSSIZE"},
224 {AIOGFMT, "AIOGFMT"},
225 {AIOSFMT, "AIOSFMT"},
226 {AIOGMIX, "AIOGMIX"},
227 {AIOSMIX, "AIOSMIX"},
228 {AIOSTOP, "AIOSTOP"},
229 {AIOSYNC, "AIOSYNC"},
230 {AIOGCAP, "AIOGCAP"},
231 {-1, NULL},
232 };
233
234 midi_cmdtab cmdtab_timer[] = {
235 {TMR_WAIT_REL, "TMR_WAIT_REL"},
236 {TMR_WAIT_ABS, "TMR_WAIT_ABS"},
237 {TMR_STOP, "TMR_STOP"},
238 {TMR_START, "TMR_START"},
239 {TMR_CONTINUE, "TMR_CONTINUE"},
240 {TMR_TEMPO, "TMR_TEMPO"},
241 {TMR_ECHO, "TMR_ECHO"},
242 {TMR_CLOCK, "TMR_CLOCK"},
243 {TMR_SPP, "TMR_SPP"},
244 {TMR_TIMESIG, "TMR_TIMESIG"},
245 {-1, NULL},
246 };
247
248 midi_cmdtab cmdtab_seqcv[] = {
249 {MIDI_NOTEOFF, "MIDI_NOTEOFF"},
250 {MIDI_NOTEON, "MIDI_NOTEON"},
251 {MIDI_KEY_PRESSURE, "MIDI_KEY_PRESSURE"},
252 {-1, NULL},
253 };
254
255 midi_cmdtab cmdtab_seqccmn[] = {
256 {MIDI_CTL_CHANGE, "MIDI_CTL_CHANGE"},
257 {MIDI_PGM_CHANGE, "MIDI_PGM_CHANGE"},
258 {MIDI_CHN_PRESSURE, "MIDI_CHN_PRESSURE"},
259 {MIDI_PITCH_BEND, "MIDI_PITCH_BEND"},
260 {MIDI_SYSTEM_PREFIX, "MIDI_SYSTEM_PREFIX"},
261 {-1, NULL},
262 };
263
264 #ifndef KOBJMETHOD_END
265 #define KOBJMETHOD_END { NULL, NULL }
266 #endif
267
268 /*
269 * static const char *mpu401_mprovider(kobj_t obj, struct mpu401 *m);
270 */
271
272 static kobj_method_t seq_methods[] = {
273 /* KOBJMETHOD(mpu_provider,mpu401_mprovider), */
274 KOBJMETHOD_END
275 };
276
277 DEFINE_CLASS(sequencer, seq_methods, 0);
278
279 /* The followings are the local function. */
280 static int seq_convertold(u_char *event, u_char *out);
281
282 /*
283 * static void seq_midiinput(struct seq_softc * scp, void *md);
284 */
285 static void seq_reset(struct seq_softc *scp);
286 static int seq_sync(struct seq_softc *scp);
287
288 static int seq_processevent(struct seq_softc *scp, u_char *event);
289
290 static int seq_timing(struct seq_softc *scp, u_char *event);
291 static int seq_local(struct seq_softc *scp, u_char *event);
292
293 static int seq_chnvoice(struct seq_softc *scp, kobj_t md, u_char *event);
294 static int seq_chncommon(struct seq_softc *scp, kobj_t md, u_char *event);
295 static int seq_sysex(struct seq_softc *scp, kobj_t md, u_char *event);
296
297 static int seq_fetch_mid(struct seq_softc *scp, int unit, kobj_t *md);
298 void seq_copytoinput(struct seq_softc *scp, u_char *event, int len);
299 int seq_modevent(module_t mod, int type, void *data);
300 struct seq_softc *seqs[10];
301 static struct mtx seqinfo_mtx;
302 static u_long nseq = 0;
303
304 static void timer_start(struct seq_softc *t);
305 static void timer_stop(struct seq_softc *t);
306 static void timer_setvals(struct seq_softc *t, int tempo, int timerbase);
307 static void timer_wait(struct seq_softc *t, int ticks, int wait_abs);
308 static int timer_now(struct seq_softc *t);
309
310
311 static void
312 timer_start(struct seq_softc *t)
313 {
314 t->timerrun = 1;
315 getmicrotime(&t->timersub);
316 }
317
318 static void
319 timer_continue(struct seq_softc *t)
320 {
321 struct timeval now;
322
323 if (t->timerrun == 1)
324 return;
325 t->timerrun = 1;
326 getmicrotime(&now);
327 timevalsub(&now, &t->timerstop);
328 timevaladd(&t->timersub, &now);
329 }
330
331 static void
332 timer_stop(struct seq_softc *t)
333 {
334 t->timerrun = 0;
335 getmicrotime(&t->timerstop);
336 }
337
338 static void
339 timer_setvals(struct seq_softc *t, int tempo, int timerbase)
340 {
341 t->tempo = tempo;
342 t->timerbase = timerbase;
343 }
344
345 static void
346 timer_wait(struct seq_softc *t, int ticks, int wait_abs)
347 {
348 struct timeval now, when;
349 int ret;
350 unsigned long long i;
351
352 while (t->timerrun == 0) {
353 SEQ_DEBUG(2, printf("Timer wait when timer isn't running\n"));
354 /*
355 * The old sequencer used timeouts that only increased
356 * the timer when the timer was running.
357 * Hence the sequencer would stick (?) if the
358 * timer was disabled.
359 */
360 cv_wait(&t->reset_cv, &t->seq_lock);
361 if (t->playing == 0)
362 return;
363 }
364
365 i = ticks * 60ull * 1000000ull / (t->tempo * t->timerbase);
366
367 when.tv_sec = i / 1000000;
368 when.tv_usec = i % 1000000;
369
370 #if 0
371 printf("timer_wait tempo %d timerbase %d ticks %d abs %d u_sec %llu\n",
372 t->tempo, t->timerbase, ticks, wait_abs, i);
373 #endif
374
375 if (wait_abs != 0) {
376 getmicrotime(&now);
377 timevalsub(&now, &t->timersub);
378 timevalsub(&when, &now);
379 }
380 if (when.tv_sec < 0 || when.tv_usec < 0) {
381 SEQ_DEBUG(3,
382 printf("seq_timer error negative time %lds.%06lds\n",
383 (long)when.tv_sec, (long)when.tv_usec));
384 return;
385 }
386 i = when.tv_sec * 1000000ull;
387 i += when.tv_usec;
388 i *= hz;
389 i /= 1000000ull;
390 #if 0
391 printf("seq_timer usec %llu ticks %llu\n",
392 when.tv_sec * 1000000ull + when.tv_usec, i);
393 #endif
394 t->waiting = 1;
395 ret = cv_timedwait(&t->reset_cv, &t->seq_lock, i + 1);
396 t->waiting = 0;
397
398 if (ret != EWOULDBLOCK)
399 SEQ_DEBUG(3, printf("seq_timer didn't timeout\n"));
400
401 }
402
403 static int
404 timer_now(struct seq_softc *t)
405 {
406 struct timeval now;
407 unsigned long long i;
408 int ret;
409
410 if (t->timerrun == 0)
411 now = t->timerstop;
412 else
413 getmicrotime(&now);
414
415 timevalsub(&now, &t->timersub);
416
417 i = now.tv_sec * 1000000ull;
418 i += now.tv_usec;
419 i *= t->timerbase;
420 /* i /= t->tempo; */
421 i /= 1000000ull;
422
423 ret = i;
424 /*
425 * printf("timer_now: %llu %d\n", i, ret);
426 */
427
428 return ret;
429 }
430
431 static void
432 seq_eventthread(void *arg)
433 {
434 struct seq_softc *scp = arg;
435 char event[EV_SZ];
436
437 mtx_lock(&scp->seq_lock);
438 SEQ_DEBUG(2, printf("seq_eventthread started\n"));
439 while (scp->done == 0) {
440 restart:
441 while (scp->playing == 0) {
442 cv_wait(&scp->state_cv, &scp->seq_lock);
443 if (scp->done)
444 goto done;
445 }
446
447 while (MIDIQ_EMPTY(scp->out_q)) {
448 cv_broadcast(&scp->empty_cv);
449 cv_wait(&scp->out_cv, &scp->seq_lock);
450 if (scp->playing == 0)
451 goto restart;
452 if (scp->done)
453 goto done;
454 }
455
456 MIDIQ_DEQ(scp->out_q, event, EV_SZ);
457
458 if (MIDIQ_AVAIL(scp->out_q) < scp->out_water) {
459 cv_broadcast(&scp->out_cv);
460 selwakeup(&scp->out_sel);
461 }
462 seq_processevent(scp, event);
463 }
464
465 done:
466 cv_broadcast(&scp->th_cv);
467 mtx_unlock(&scp->seq_lock);
468 SEQ_DEBUG(2, printf("seq_eventthread finished\n"));
469 #if __FreeBSD_version >= 800002
470 kproc_exit(0);
471 #else
472 mtx_lock(&Giant);
473 kthread_exit(0);
474 #endif
475 }
476
477 /*
478 * seq_processevent: This maybe called by the event thread or the IOCTL
479 * handler for queued and out of band events respectively.
480 */
481 static int
482 seq_processevent(struct seq_softc *scp, u_char *event)
483 {
484 int ret;
485 kobj_t m;
486
487 ret = 0;
488
489 if (event[0] == EV_SEQ_LOCAL)
490 ret = seq_local(scp, event);
491 else if (event[0] == EV_TIMING)
492 ret = seq_timing(scp, event);
493 else if (event[0] != EV_CHN_VOICE &&
494 event[0] != EV_CHN_COMMON &&
495 event[0] != EV_SYSEX &&
496 event[0] != SEQ_MIDIPUTC) {
497 ret = 1;
498 SEQ_DEBUG(2, printf("seq_processevent not known %d\n",
499 event[0]));
500 } else if (seq_fetch_mid(scp, event[1], &m) != 0) {
501 ret = 1;
502 SEQ_DEBUG(2, printf("seq_processevent midi unit not found %d\n",
503 event[1]));
504 } else
505 switch (event[0]) {
506 case EV_CHN_VOICE:
507 ret = seq_chnvoice(scp, m, event);
508 break;
509 case EV_CHN_COMMON:
510 ret = seq_chncommon(scp, m, event);
511 break;
512 case EV_SYSEX:
513 ret = seq_sysex(scp, m, event);
514 break;
515 case SEQ_MIDIPUTC:
516 mtx_unlock(&scp->seq_lock);
517 ret = SYNTH_WRITERAW(m, &event[2], 1);
518 mtx_lock(&scp->seq_lock);
519 break;
520 }
521 return ret;
522 }
523
524 static int
525 seq_addunit(void)
526 {
527 struct seq_softc *scp;
528 int ret;
529 u_char *buf;
530
531 /* Allocate the softc. */
532 ret = ENOMEM;
533 scp = malloc(sizeof(*scp), M_DEVBUF, M_NOWAIT | M_ZERO);
534 if (scp == NULL) {
535 SEQ_DEBUG(1, printf("seq_addunit: softc allocation failed.\n"));
536 goto err;
537 }
538 kobj_init((kobj_t)scp, &sequencer_class);
539
540 buf = malloc(sizeof(*buf) * EV_SZ * 1024, M_TEMP, M_NOWAIT | M_ZERO);
541 if (buf == NULL)
542 goto err;
543 MIDIQ_INIT(scp->in_q, buf, EV_SZ * 1024);
544 buf = malloc(sizeof(*buf) * EV_SZ * 1024, M_TEMP, M_NOWAIT | M_ZERO);
545 if (buf == NULL)
546 goto err;
547 MIDIQ_INIT(scp->out_q, buf, EV_SZ * 1024);
548 ret = EINVAL;
549
550 scp->midis = malloc(sizeof(kobj_t) * 32, M_TEMP, M_NOWAIT | M_ZERO);
551 scp->midi_flags = malloc(sizeof(*scp->midi_flags) * 32, M_TEMP,
552 M_NOWAIT | M_ZERO);
553
554 if (scp->midis == NULL || scp->midi_flags == NULL)
555 goto err;
556
557 scp->flags = 0;
558
559 mtx_init(&scp->seq_lock, "seqflq", NULL, 0);
560 cv_init(&scp->state_cv, "seqstate");
561 cv_init(&scp->empty_cv, "seqempty");
562 cv_init(&scp->reset_cv, "seqtimer");
563 cv_init(&scp->out_cv, "seqqout");
564 cv_init(&scp->in_cv, "seqqin");
565 cv_init(&scp->th_cv, "seqstart");
566
567 /*
568 * Init the damn timer
569 */
570
571 scp->mapper = midimapper_addseq(scp, &scp->unit, &scp->mapper_cookie);
572 if (scp->mapper == NULL)
573 goto err;
574
575 scp->seqdev = make_dev(&seq_cdevsw,
576 MIDIMKMINOR(scp->unit, SND_DEV_SEQ, 0), UID_ROOT,
577 GID_WHEEL, 0666, "sequencer%d", scp->unit);
578
579 scp->musicdev = make_dev(&seq_cdevsw,
580 MIDIMKMINOR(scp->unit, SND_DEV_MUSIC, 0), UID_ROOT,
581 GID_WHEEL, 0666, "music%d", scp->unit);
582
583 if (scp->seqdev == NULL || scp->musicdev == NULL)
584 goto err;
585 /*
586 * TODO: Add to list of sequencers this module provides
587 */
588
589 ret =
590 #if __FreeBSD_version >= 800002
591 kproc_create
592 #else
593 kthread_create
594 #endif
595 (seq_eventthread, scp, NULL, RFHIGHPID, 0,
596 "sequencer %02d", scp->unit);
597
598 if (ret)
599 goto err;
600
601 scp->seqdev->si_drv1 = scp->musicdev->si_drv1 = scp;
602
603 SEQ_DEBUG(2, printf("sequencer %d created scp %p\n", scp->unit, scp));
604
605 ret = 0;
606
607 mtx_lock(&seqinfo_mtx);
608 seqs[nseq++] = scp;
609 mtx_unlock(&seqinfo_mtx);
610
611 goto ok;
612
613 err:
614 if (scp != NULL) {
615 if (scp->seqdev != NULL)
616 destroy_dev(scp->seqdev);
617 if (scp->musicdev != NULL)
618 destroy_dev(scp->musicdev);
619 /*
620 * TODO: Destroy mutex and cv
621 */
622 if (scp->midis != NULL)
623 free(scp->midis, M_TEMP);
624 if (scp->midi_flags != NULL)
625 free(scp->midi_flags, M_TEMP);
626 if (scp->out_q.b)
627 free(scp->out_q.b, M_TEMP);
628 if (scp->in_q.b)
629 free(scp->in_q.b, M_TEMP);
630 free(scp, M_DEVBUF);
631 }
632 ok:
633 return ret;
634 }
635
636 static int
637 seq_delunit(int unit)
638 {
639 struct seq_softc *scp = seqs[unit];
640 int i;
641
642 //SEQ_DEBUG(4, printf("seq_delunit: %d\n", unit));
643 SEQ_DEBUG(1, printf("seq_delunit: 1 \n"));
644 mtx_lock(&scp->seq_lock);
645
646 scp->playing = 0;
647 scp->done = 1;
648 cv_broadcast(&scp->out_cv);
649 cv_broadcast(&scp->state_cv);
650 cv_broadcast(&scp->reset_cv);
651 SEQ_DEBUG(1, printf("seq_delunit: 2 \n"));
652 cv_wait(&scp->th_cv, &scp->seq_lock);
653 SEQ_DEBUG(1, printf("seq_delunit: 3.0 \n"));
654 mtx_unlock(&scp->seq_lock);
655 SEQ_DEBUG(1, printf("seq_delunit: 3.1 \n"));
656
657 cv_destroy(&scp->state_cv);
658 SEQ_DEBUG(1, printf("seq_delunit: 4 \n"));
659 cv_destroy(&scp->empty_cv);
660 SEQ_DEBUG(1, printf("seq_delunit: 5 \n"));
661 cv_destroy(&scp->reset_cv);
662 SEQ_DEBUG(1, printf("seq_delunit: 6 \n"));
663 cv_destroy(&scp->out_cv);
664 SEQ_DEBUG(1, printf("seq_delunit: 7 \n"));
665 cv_destroy(&scp->in_cv);
666 SEQ_DEBUG(1, printf("seq_delunit: 8 \n"));
667 cv_destroy(&scp->th_cv);
668
669 SEQ_DEBUG(1, printf("seq_delunit: 10 \n"));
670 if (scp->seqdev)
671 destroy_dev(scp->seqdev);
672 SEQ_DEBUG(1, printf("seq_delunit: 11 \n"));
673 if (scp->musicdev)
674 destroy_dev(scp->musicdev);
675 SEQ_DEBUG(1, printf("seq_delunit: 12 \n"));
676 scp->seqdev = scp->musicdev = NULL;
677 if (scp->midis != NULL)
678 free(scp->midis, M_TEMP);
679 SEQ_DEBUG(1, printf("seq_delunit: 13 \n"));
680 if (scp->midi_flags != NULL)
681 free(scp->midi_flags, M_TEMP);
682 SEQ_DEBUG(1, printf("seq_delunit: 14 \n"));
683 free(scp->out_q.b, M_TEMP);
684 SEQ_DEBUG(1, printf("seq_delunit: 15 \n"));
685 free(scp->in_q.b, M_TEMP);
686
687 SEQ_DEBUG(1, printf("seq_delunit: 16 \n"));
688
689 mtx_destroy(&scp->seq_lock);
690 SEQ_DEBUG(1, printf("seq_delunit: 17 \n"));
691 free(scp, M_DEVBUF);
692
693 mtx_lock(&seqinfo_mtx);
694 for (i = unit; i < (nseq - 1); i++)
695 seqs[i] = seqs[i + 1];
696 nseq--;
697 mtx_unlock(&seqinfo_mtx);
698
699 return 0;
700 }
701
702 int
703 seq_modevent(module_t mod, int type, void *data)
704 {
705 int retval, r;
706
707 retval = 0;
708
709 switch (type) {
710 case MOD_LOAD:
711 mtx_init(&seqinfo_mtx, "seqmod", NULL, 0);
712 retval = seq_addunit();
713 break;
714
715 case MOD_UNLOAD:
716 while (nseq) {
717 r = seq_delunit(nseq - 1);
718 if (r) {
719 retval = r;
720 break;
721 }
722 }
723 if (nseq == 0) {
724 retval = 0;
725 mtx_destroy(&seqinfo_mtx);
726 }
727 break;
728
729 default:
730 break;
731 }
732
733 return retval;
734 }
735
736 static int
737 seq_fetch_mid(struct seq_softc *scp, int unit, kobj_t *md)
738 {
739
740 if (unit > scp->midi_number || unit < 0)
741 return EINVAL;
742
743 *md = scp->midis[unit];
744
745 return 0;
746 }
747
748 int
749 seq_open(struct cdev *i_dev, int flags, int mode, struct thread *td)
750 {
751 struct seq_softc *scp = i_dev->si_drv1;
752 int i;
753
754 if (scp == NULL)
755 return ENXIO;
756
757 SEQ_DEBUG(3, printf("seq_open: scp %p unit %d, flags 0x%x.\n",
758 scp, scp->unit, flags));
759
760 /*
761 * Mark this device busy.
762 */
763
764 mtx_lock(&scp->seq_lock);
765 if (scp->busy) {
766 mtx_unlock(&scp->seq_lock);
767 SEQ_DEBUG(2, printf("seq_open: unit %d is busy.\n", scp->unit));
768 return EBUSY;
769 }
770 scp->fflags = flags;
771 /*
772 if ((scp->fflags & O_NONBLOCK) != 0)
773 scp->flags |= SEQ_F_NBIO;
774 */
775 scp->music = MIDIDEV(i_dev) == SND_DEV_MUSIC;
776
777 /*
778 * Enumerate the available midi devices
779 */
780 scp->midi_number = 0;
781 scp->maxunits = midimapper_open(scp->mapper, &scp->mapper_cookie);
782
783 if (scp->maxunits == 0)
784 SEQ_DEBUG(2, printf("seq_open: no midi devices\n"));
785
786 for (i = 0; i < scp->maxunits; i++) {
787 scp->midis[scp->midi_number] =
788 midimapper_fetch_synth(scp->mapper, scp->mapper_cookie, i);
789 if (scp->midis[scp->midi_number]) {
790 if (SYNTH_OPEN(scp->midis[scp->midi_number], scp,
791 scp->fflags) != 0)
792 scp->midis[scp->midi_number] = NULL;
793 else {
794 scp->midi_flags[scp->midi_number] =
795 SYNTH_QUERY(scp->midis[scp->midi_number]);
796 scp->midi_number++;
797 }
798 }
799 }
800
801 timer_setvals(scp, 60, 100);
802
803 timer_start(scp);
804 timer_stop(scp);
805 /*
806 * actually, if we're in rdonly mode, we should start the timer
807 */
808 /*
809 * TODO: Handle recording now
810 */
811
812 scp->out_water = MIDIQ_SIZE(scp->out_q) / 2;
813
814 scp->busy = 1;
815 mtx_unlock(&scp->seq_lock);
816
817 SEQ_DEBUG(2, printf("seq_open: opened, mode %s.\n",
818 scp->music ? "music" : "sequencer"));
819 SEQ_DEBUG(2,
820 printf("Sequencer %d %p opened maxunits %d midi_number %d:\n",
821 scp->unit, scp, scp->maxunits, scp->midi_number));
822 for (i = 0; i < scp->midi_number; i++)
823 SEQ_DEBUG(3, printf(" midi %d %p\n", i, scp->midis[i]));
824
825 return 0;
826 }
827
828 /*
829 * seq_close
830 */
831 int
832 seq_close(struct cdev *i_dev, int flags, int mode, struct thread *td)
833 {
834 int i;
835 struct seq_softc *scp = i_dev->si_drv1;
836 int ret;
837
838 if (scp == NULL)
839 return ENXIO;
840
841 SEQ_DEBUG(2, printf("seq_close: unit %d.\n", scp->unit));
842
843 mtx_lock(&scp->seq_lock);
844
845 ret = ENXIO;
846 if (scp->busy == 0)
847 goto err;
848
849 seq_reset(scp);
850 seq_sync(scp);
851
852 for (i = 0; i < scp->midi_number; i++)
853 if (scp->midis[i])
854 SYNTH_CLOSE(scp->midis[i]);
855
856 midimapper_close(scp->mapper, scp->mapper_cookie);
857
858 timer_stop(scp);
859
860 scp->busy = 0;
861 ret = 0;
862
863 err:
864 SEQ_DEBUG(3, printf("seq_close: closed ret = %d.\n", ret));
865 mtx_unlock(&scp->seq_lock);
866 return ret;
867 }
868
869 int
870 seq_read(struct cdev *i_dev, struct uio *uio, int ioflag)
871 {
872 int retval, used;
873 struct seq_softc *scp = i_dev->si_drv1;
874
875 #define SEQ_RSIZE 32
876 u_char buf[SEQ_RSIZE];
877
878 if (scp == NULL)
879 return ENXIO;
880
881 SEQ_DEBUG(7, printf("seq_read: unit %d, resid %zd.\n",
882 scp->unit, uio->uio_resid));
883
884 mtx_lock(&scp->seq_lock);
885 if ((scp->fflags & FREAD) == 0) {
886 SEQ_DEBUG(2, printf("seq_read: unit %d is not for reading.\n",
887 scp->unit));
888 retval = EIO;
889 goto err1;
890 }
891 /*
892 * Begin recording.
893 */
894 /*
895 * if ((scp->flags & SEQ_F_READING) == 0)
896 */
897 /*
898 * TODO, start recording if not alread
899 */
900
901 /*
902 * I think the semantics are to return as soon
903 * as possible.
904 * Second thought, it doens't seem like midimoutain
905 * expects that at all.
906 * TODO: Look up in some sort of spec
907 */
908
909 while (uio->uio_resid > 0) {
910 while (MIDIQ_EMPTY(scp->in_q)) {
911 retval = EWOULDBLOCK;
912 /*
913 * I wish I knew which one to care about
914 */
915
916 if (scp->fflags & O_NONBLOCK)
917 goto err1;
918 if (ioflag & O_NONBLOCK)
919 goto err1;
920
921 retval = cv_wait_sig(&scp->in_cv, &scp->seq_lock);
922 if (retval == EINTR)
923 goto err1;
924 }
925
926 used = MIN(MIDIQ_LEN(scp->in_q), uio->uio_resid);
927 used = MIN(used, SEQ_RSIZE);
928
929 SEQ_DEBUG(8, printf("midiread: uiomove cc=%d\n", used));
930 MIDIQ_DEQ(scp->in_q, buf, used);
931 retval = uiomove(buf, used, uio);
932 if (retval)
933 goto err1;
934 }
935
936 retval = 0;
937 err1:
938 mtx_unlock(&scp->seq_lock);
939 SEQ_DEBUG(6, printf("seq_read: ret %d, resid %zd.\n",
940 retval, uio->uio_resid));
941
942 return retval;
943 }
944
945 int
946 seq_write(struct cdev *i_dev, struct uio *uio, int ioflag)
947 {
948 u_char event[EV_SZ], newevent[EV_SZ], ev_code;
949 struct seq_softc *scp = i_dev->si_drv1;
950 int retval;
951 int used;
952
953 SEQ_DEBUG(7, printf("seq_write: unit %d, resid %zd.\n",
954 scp->unit, uio->uio_resid));
955
956 if (scp == NULL)
957 return ENXIO;
958
959 mtx_lock(&scp->seq_lock);
960
961 if ((scp->fflags & FWRITE) == 0) {
962 SEQ_DEBUG(2, printf("seq_write: unit %d is not for writing.\n",
963 scp->unit));
964 retval = EIO;
965 goto err0;
966 }
967 while (uio->uio_resid > 0) {
968 while (MIDIQ_AVAIL(scp->out_q) == 0) {
969 retval = EWOULDBLOCK;
970 if (scp->fflags & O_NONBLOCK)
971 goto err0;
972 if (ioflag & O_NONBLOCK)
973 goto err0;
974 SEQ_DEBUG(8, printf("seq_write cvwait\n"));
975
976 scp->playing = 1;
977 cv_broadcast(&scp->out_cv);
978 cv_broadcast(&scp->state_cv);
979
980 retval = cv_wait_sig(&scp->out_cv, &scp->seq_lock);
981 /*
982 * We slept, maybe things have changed since last
983 * dying check
984 */
985 if (retval == EINTR)
986 goto err0;
987 #if 0
988 /*
989 * Useless test
990 */
991 if (scp != i_dev->si_drv1)
992 retval = ENXIO;
993 #endif
994 }
995
996 used = MIN(uio->uio_resid, 4);
997
998 SEQ_DEBUG(8, printf("seqout: resid %zd len %jd avail %jd\n",
999 uio->uio_resid, (intmax_t)MIDIQ_LEN(scp->out_q),
1000 (intmax_t)MIDIQ_AVAIL(scp->out_q)));
1001
1002 if (used != 4) {
1003 retval = ENXIO;
1004 goto err0;
1005 }
1006 retval = uiomove(event, used, uio);
1007 if (retval)
1008 goto err0;
1009
1010 ev_code = event[0];
1011 SEQ_DEBUG(8, printf("seq_write: unit %d, event %s.\n",
1012 scp->unit, midi_cmdname(ev_code, cmdtab_seqevent)));
1013
1014 /* Have a look at the event code. */
1015 if (ev_code == SEQ_FULLSIZE) {
1016
1017 /*
1018 * TODO: restore code for SEQ_FULLSIZE
1019 */
1020 #if 0
1021 /*
1022 * A long event, these are the patches/samples for a
1023 * synthesizer.
1024 */
1025 midiunit = *(u_short *)&event[2];
1026 mtx_lock(&sd->seq_lock);
1027 ret = lookup_mididev(scp, midiunit, LOOKUP_OPEN, &md);
1028 mtx_unlock(&sd->seq_lock);
1029 if (ret != 0)
1030 return (ret);
1031
1032 SEQ_DEBUG(printf("seq_write: loading a patch to the unit %d.\n", midiunit));
1033
1034 ret = md->synth.loadpatch(md, *(short *)&event[0], buf,
1035 p + 4, count, 0);
1036 return (ret);
1037 #else
1038 /*
1039 * For now, just flush the darn buffer
1040 */
1041 SEQ_DEBUG(2,
1042 printf("seq_write: SEQ_FULLSIZE flusing buffer.\n"));
1043 while (uio->uio_resid > 0) {
1044 retval = uiomove(event, EV_SZ, uio);
1045 if (retval)
1046 goto err0;
1047
1048 }
1049 retval = 0;
1050 goto err0;
1051 #endif
1052 }
1053 retval = EINVAL;
1054 if (ev_code >= 128) {
1055
1056 /*
1057 * Some sort of an extended event. The size is eight
1058 * bytes. scoop extra info.
1059 */
1060 if (scp->music && ev_code == SEQ_EXTENDED) {
1061 SEQ_DEBUG(2, printf("seq_write: invalid level two event %x.\n", ev_code));
1062 goto err0;
1063 }
1064 if (uiomove((caddr_t)&event[4], 4, uio)) {
1065 SEQ_DEBUG(2,
1066 printf("seq_write: user memory mangled?\n"));
1067 goto err0;
1068 }
1069 } else {
1070 /*
1071 * Size four event.
1072 */
1073 if (scp->music) {
1074 SEQ_DEBUG(2, printf("seq_write: four byte event in music mode.\n"));
1075 goto err0;
1076 }
1077 }
1078 if (ev_code == SEQ_MIDIPUTC) {
1079 /*
1080 * TODO: event[2] is unit number to receive char.
1081 * Range check it.
1082 */
1083 }
1084 if (scp->music) {
1085 #ifdef not_ever_ever
1086 if (event[0] == EV_TIMING &&
1087 (event[1] == TMR_START || event[1] == TMR_STOP)) {
1088 /*
1089 * For now, try to make midimoutain work by
1090 * forcing these events to be processed
1091 * immediatly.
1092 */
1093 seq_processevent(scp, event);
1094 } else
1095 MIDIQ_ENQ(scp->out_q, event, EV_SZ);
1096 #else
1097 MIDIQ_ENQ(scp->out_q, event, EV_SZ);
1098 #endif
1099 } else {
1100 if (seq_convertold(event, newevent) > 0)
1101 MIDIQ_ENQ(scp->out_q, newevent, EV_SZ);
1102 #if 0
1103 else
1104 goto err0;
1105 #endif
1106 }
1107
1108 }
1109
1110 scp->playing = 1;
1111 cv_broadcast(&scp->state_cv);
1112 cv_broadcast(&scp->out_cv);
1113
1114 retval = 0;
1115
1116 err0:
1117 SEQ_DEBUG(6,
1118 printf("seq_write done: leftover buffer length %zd retval %d\n",
1119 uio->uio_resid, retval));
1120 mtx_unlock(&scp->seq_lock);
1121 return retval;
1122 }
1123
1124 int
1125 seq_ioctl(struct cdev *i_dev, u_long cmd, caddr_t arg, int mode,
1126 struct thread *td)
1127 {
1128 int midiunit, ret, tmp;
1129 struct seq_softc *scp = i_dev->si_drv1;
1130 struct synth_info *synthinfo;
1131 struct midi_info *midiinfo;
1132 u_char event[EV_SZ];
1133 u_char newevent[EV_SZ];
1134
1135 kobj_t md;
1136
1137 /*
1138 * struct snd_size *sndsize;
1139 */
1140
1141 if (scp == NULL)
1142 return ENXIO;
1143
1144 SEQ_DEBUG(6, printf("seq_ioctl: unit %d, cmd %s.\n",
1145 scp->unit, midi_cmdname(cmd, cmdtab_seqioctl)));
1146
1147 ret = 0;
1148
1149 switch (cmd) {
1150 case SNDCTL_SEQ_GETTIME:
1151 /*
1152 * ioctl needed by libtse
1153 */
1154 mtx_lock(&scp->seq_lock);
1155 *(int *)arg = timer_now(scp);
1156 mtx_unlock(&scp->seq_lock);
1157 SEQ_DEBUG(6, printf("seq_ioctl: gettime %d.\n", *(int *)arg));
1158 ret = 0;
1159 break;
1160 case SNDCTL_TMR_METRONOME:
1161 /* fallthrough */
1162 case SNDCTL_TMR_SOURCE:
1163 /*
1164 * Not implemented
1165 */
1166 ret = 0;
1167 break;
1168 case SNDCTL_TMR_TEMPO:
1169 event[1] = TMR_TEMPO;
1170 event[4] = *(int *)arg & 0xFF;
1171 event[5] = (*(int *)arg >> 8) & 0xFF;
1172 event[6] = (*(int *)arg >> 16) & 0xFF;
1173 event[7] = (*(int *)arg >> 24) & 0xFF;
1174 goto timerevent;
1175 case SNDCTL_TMR_TIMEBASE:
1176 event[1] = TMR_TIMERBASE;
1177 event[4] = *(int *)arg & 0xFF;
1178 event[5] = (*(int *)arg >> 8) & 0xFF;
1179 event[6] = (*(int *)arg >> 16) & 0xFF;
1180 event[7] = (*(int *)arg >> 24) & 0xFF;
1181 goto timerevent;
1182 case SNDCTL_TMR_START:
1183 event[1] = TMR_START;
1184 goto timerevent;
1185 case SNDCTL_TMR_STOP:
1186 event[1] = TMR_STOP;
1187 goto timerevent;
1188 case SNDCTL_TMR_CONTINUE:
1189 event[1] = TMR_CONTINUE;
1190 timerevent:
1191 event[0] = EV_TIMING;
1192 mtx_lock(&scp->seq_lock);
1193 if (!scp->music) {
1194 ret = EINVAL;
1195 mtx_unlock(&scp->seq_lock);
1196 break;
1197 }
1198 seq_processevent(scp, event);
1199 mtx_unlock(&scp->seq_lock);
1200 break;
1201 case SNDCTL_TMR_SELECT:
1202 SEQ_DEBUG(2,
1203 printf("seq_ioctl: SNDCTL_TMR_SELECT not supported\n"));
1204 ret = EINVAL;
1205 break;
1206 case SNDCTL_SEQ_SYNC:
1207 if (mode == O_RDONLY) {
1208 ret = 0;
1209 break;
1210 }
1211 mtx_lock(&scp->seq_lock);
1212 ret = seq_sync(scp);
1213 mtx_unlock(&scp->seq_lock);
1214 break;
1215 case SNDCTL_SEQ_PANIC:
1216 /* fallthrough */
1217 case SNDCTL_SEQ_RESET:
1218 /*
1219 * SNDCTL_SEQ_PANIC == SNDCTL_SEQ_RESET
1220 */
1221 mtx_lock(&scp->seq_lock);
1222 seq_reset(scp);
1223 mtx_unlock(&scp->seq_lock);
1224 ret = 0;
1225 break;
1226 case SNDCTL_SEQ_TESTMIDI:
1227 mtx_lock(&scp->seq_lock);
1228 /*
1229 * TODO: SNDCTL_SEQ_TESTMIDI now means "can I write to the
1230 * device?".
1231 */
1232 mtx_unlock(&scp->seq_lock);
1233 break;
1234 #if 0
1235 case SNDCTL_SEQ_GETINCOUNT:
1236 if (mode == O_WRONLY)
1237 *(int *)arg = 0;
1238 else {
1239 mtx_lock(&scp->seq_lock);
1240 *(int *)arg = scp->in_q.rl;
1241 mtx_unlock(&scp->seq_lock);
1242 SEQ_DEBUG(printf("seq_ioctl: incount %d.\n",
1243 *(int *)arg));
1244 }
1245 ret = 0;
1246 break;
1247 case SNDCTL_SEQ_GETOUTCOUNT:
1248 if (mode == O_RDONLY)
1249 *(int *)arg = 0;
1250 else {
1251 mtx_lock(&scp->seq_lock);
1252 *(int *)arg = scp->out_q.fl;
1253 mtx_unlock(&scp->seq_lock);
1254 SEQ_DEBUG(printf("seq_ioctl: outcount %d.\n",
1255 *(int *)arg));
1256 }
1257 ret = 0;
1258 break;
1259 #endif
1260 case SNDCTL_SEQ_CTRLRATE:
1261 if (*(int *)arg != 0) {
1262 ret = EINVAL;
1263 break;
1264 }
1265 mtx_lock(&scp->seq_lock);
1266 *(int *)arg = scp->timerbase;
1267 mtx_unlock(&scp->seq_lock);
1268 SEQ_DEBUG(3, printf("seq_ioctl: ctrlrate %d.\n", *(int *)arg));
1269 ret = 0;
1270 break;
1271 /*
1272 * TODO: ioctl SNDCTL_SEQ_RESETSAMPLES
1273 */
1274 #if 0
1275 case SNDCTL_SEQ_RESETSAMPLES:
1276 mtx_lock(&scp->seq_lock);
1277 ret = lookup_mididev(scp, *(int *)arg, LOOKUP_OPEN, &md);
1278 mtx_unlock(&scp->seq_lock);
1279 if (ret != 0)
1280 break;
1281 ret = midi_ioctl(MIDIMKDEV(major(i_dev), *(int *)arg,
1282 SND_DEV_MIDIN), cmd, arg, mode, td);
1283 break;
1284 #endif
1285 case SNDCTL_SEQ_NRSYNTHS:
1286 mtx_lock(&scp->seq_lock);
1287 *(int *)arg = scp->midi_number;
1288 mtx_unlock(&scp->seq_lock);
1289 SEQ_DEBUG(3, printf("seq_ioctl: synths %d.\n", *(int *)arg));
1290 ret = 0;
1291 break;
1292 case SNDCTL_SEQ_NRMIDIS:
1293 mtx_lock(&scp->seq_lock);
1294 if (scp->music)
1295 *(int *)arg = 0;
1296 else {
1297 /*
1298 * TODO: count the numbder of devices that can WRITERAW
1299 */
1300 *(int *)arg = scp->midi_number;
1301 }
1302 mtx_unlock(&scp->seq_lock);
1303 SEQ_DEBUG(3, printf("seq_ioctl: midis %d.\n", *(int *)arg));
1304 ret = 0;
1305 break;
1306 /*
1307 * TODO: ioctl SNDCTL_SYNTH_MEMAVL
1308 */
1309 #if 0
1310 case SNDCTL_SYNTH_MEMAVL:
1311 mtx_lock(&scp->seq_lock);
1312 ret = lookup_mididev(scp, *(int *)arg, LOOKUP_OPEN, &md);
1313 mtx_unlock(&scp->seq_lock);
1314 if (ret != 0)
1315 break;
1316 ret = midi_ioctl(MIDIMKDEV(major(i_dev), *(int *)arg,
1317 SND_DEV_MIDIN), cmd, arg, mode, td);
1318 break;
1319 #endif
1320 case SNDCTL_SEQ_OUTOFBAND:
1321 for (ret = 0; ret < EV_SZ; ret++)
1322 event[ret] = (u_char)arg[0];
1323
1324 mtx_lock(&scp->seq_lock);
1325 if (scp->music)
1326 ret = seq_processevent(scp, event);
1327 else {
1328 if (seq_convertold(event, newevent) > 0)
1329 ret = seq_processevent(scp, newevent);
1330 else
1331 ret = EINVAL;
1332 }
1333 mtx_unlock(&scp->seq_lock);
1334 break;
1335 case SNDCTL_SYNTH_INFO:
1336 synthinfo = (struct synth_info *)arg;
1337 midiunit = synthinfo->device;
1338 mtx_lock(&scp->seq_lock);
1339 if (seq_fetch_mid(scp, midiunit, &md) == 0) {
1340 bzero(synthinfo, sizeof(*synthinfo));
1341 synthinfo->name[0] = 'f';
1342 synthinfo->name[1] = 'a';
1343 synthinfo->name[2] = 'k';
1344 synthinfo->name[3] = 'e';
1345 synthinfo->name[4] = 's';
1346 synthinfo->name[5] = 'y';
1347 synthinfo->name[6] = 'n';
1348 synthinfo->name[7] = 't';
1349 synthinfo->name[8] = 'h';
1350 synthinfo->device = midiunit;
1351 synthinfo->synth_type = SYNTH_TYPE_MIDI;
1352 synthinfo->capabilities = scp->midi_flags[midiunit];
1353 ret = 0;
1354 } else
1355 ret = EINVAL;
1356 mtx_unlock(&scp->seq_lock);
1357 break;
1358 case SNDCTL_MIDI_INFO:
1359 midiinfo = (struct midi_info *)arg;
1360 midiunit = midiinfo->device;
1361 mtx_lock(&scp->seq_lock);
1362 if (seq_fetch_mid(scp, midiunit, &md) == 0) {
1363 bzero(midiinfo, sizeof(*midiinfo));
1364 midiinfo->name[0] = 'f';
1365 midiinfo->name[1] = 'a';
1366 midiinfo->name[2] = 'k';
1367 midiinfo->name[3] = 'e';
1368 midiinfo->name[4] = 'm';
1369 midiinfo->name[5] = 'i';
1370 midiinfo->name[6] = 'd';
1371 midiinfo->name[7] = 'i';
1372 midiinfo->device = midiunit;
1373 midiinfo->capabilities = scp->midi_flags[midiunit];
1374 /*
1375 * TODO: What devtype?
1376 */
1377 midiinfo->dev_type = 0x01;
1378 ret = 0;
1379 } else
1380 ret = EINVAL;
1381 mtx_unlock(&scp->seq_lock);
1382 break;
1383 case SNDCTL_SEQ_THRESHOLD:
1384 mtx_lock(&scp->seq_lock);
1385 RANGE(*(int *)arg, 1, MIDIQ_SIZE(scp->out_q) - 1);
1386 scp->out_water = *(int *)arg;
1387 mtx_unlock(&scp->seq_lock);
1388 SEQ_DEBUG(3, printf("seq_ioctl: water %d.\n", *(int *)arg));
1389 ret = 0;
1390 break;
1391 case SNDCTL_MIDI_PRETIME:
1392 tmp = *(int *)arg;
1393 if (tmp < 0)
1394 tmp = 0;
1395 mtx_lock(&scp->seq_lock);
1396 scp->pre_event_timeout = (hz * tmp) / 10;
1397 *(int *)arg = scp->pre_event_timeout;
1398 mtx_unlock(&scp->seq_lock);
1399 SEQ_DEBUG(3, printf("seq_ioctl: pretime %d.\n", *(int *)arg));
1400 ret = 0;
1401 break;
1402 case SNDCTL_FM_4OP_ENABLE:
1403 case SNDCTL_PMGR_IFACE:
1404 case SNDCTL_PMGR_ACCESS:
1405 /*
1406 * Patch manager and fm are ded, ded, ded.
1407 */
1408 /* fallthrough */
1409 default:
1410 /*
1411 * TODO: Consider ioctl default case.
1412 * Old code used to
1413 * if ((scp->fflags & O_ACCMODE) == FREAD) {
1414 * ret = EIO;
1415 * break;
1416 * }
1417 * Then pass on the ioctl to device 0
1418 */
1419 SEQ_DEBUG(2,
1420 printf("seq_ioctl: unsupported IOCTL %ld.\n", cmd));
1421 ret = EINVAL;
1422 break;
1423 }
1424
1425 return ret;
1426 }
1427
1428 int
1429 seq_poll(struct cdev *i_dev, int events, struct thread *td)
1430 {
1431 int ret, lim;
1432 struct seq_softc *scp = i_dev->si_drv1;
1433
1434 SEQ_DEBUG(3, printf("seq_poll: unit %d.\n", scp->unit));
1435 SEQ_DEBUG(1, printf("seq_poll: unit %d.\n", scp->unit));
1436
1437 mtx_lock(&scp->seq_lock);
1438
1439 ret = 0;
1440
1441 /* Look up the apropriate queue and select it. */
1442 if ((events & (POLLOUT | POLLWRNORM)) != 0) {
1443 /* Start playing. */
1444 scp->playing = 1;
1445 cv_broadcast(&scp->state_cv);
1446 cv_broadcast(&scp->out_cv);
1447
1448 lim = scp->out_water;
1449
1450 if (MIDIQ_AVAIL(scp->out_q) < lim)
1451 /* No enough space, record select. */
1452 selrecord(td, &scp->out_sel);
1453 else
1454 /* We can write now. */
1455 ret |= events & (POLLOUT | POLLWRNORM);
1456 }
1457 if ((events & (POLLIN | POLLRDNORM)) != 0) {
1458 /* TODO: Start recording. */
1459
1460 /* Find out the boundary. */
1461 lim = 1;
1462 if (MIDIQ_LEN(scp->in_q) < lim)
1463 /* No data ready, record select. */
1464 selrecord(td, &scp->in_sel);
1465 else
1466 /* We can read now. */
1467 ret |= events & (POLLIN | POLLRDNORM);
1468 }
1469 mtx_unlock(&scp->seq_lock);
1470
1471 return (ret);
1472 }
1473
1474 #if 0
1475 static void
1476 sein_qtr(void *p, void /* mididev_info */ *md)
1477 {
1478 struct seq_softc *scp;
1479
1480 scp = (struct seq_softc *)p;
1481
1482 mtx_lock(&scp->seq_lock);
1483
1484 /* Restart playing if we have the data to output. */
1485 if (scp->queueout_pending)
1486 seq_callback(scp, SEQ_CB_START | SEQ_CB_WR);
1487 /* Check the midi device if we are reading. */
1488 if ((scp->flags & SEQ_F_READING) != 0)
1489 seq_midiinput(scp, md);
1490
1491 mtx_unlock(&scp->seq_lock);
1492 }
1493
1494 #endif
1495 /*
1496 * seq_convertold
1497 * Was the old playevent. Use this to convert and old
1498 * style /dev/sequencer event to a /dev/music event
1499 */
1500 static int
1501 seq_convertold(u_char *event, u_char *out)
1502 {
1503 int used;
1504 u_char dev, chn, note, vel;
1505
1506 out[0] = out[1] = out[2] = out[3] = out[4] = out[5] = out[6] =
1507 out[7] = 0;
1508
1509 dev = 0;
1510 chn = event[1];
1511 note = event[2];
1512 vel = event[3];
1513
1514 used = 0;
1515
1516 restart:
1517 /*
1518 * TODO: Debug statement
1519 */
1520 switch (event[0]) {
1521 case EV_TIMING:
1522 case EV_CHN_VOICE:
1523 case EV_CHN_COMMON:
1524 case EV_SYSEX:
1525 case EV_SEQ_LOCAL:
1526 out[0] = event[0];
1527 out[1] = event[1];
1528 out[2] = event[2];
1529 out[3] = event[3];
1530 out[4] = event[4];
1531 out[5] = event[5];
1532 out[6] = event[6];
1533 out[7] = event[7];
1534 used += 8;
1535 break;
1536 case SEQ_NOTEOFF:
1537 out[0] = EV_CHN_VOICE;
1538 out[1] = dev;
1539 out[2] = MIDI_NOTEOFF;
1540 out[3] = chn;
1541 out[4] = note;
1542 out[5] = 255;
1543 used += 4;
1544 break;
1545
1546 case SEQ_NOTEON:
1547 out[0] = EV_CHN_VOICE;
1548 out[1] = dev;
1549 out[2] = MIDI_NOTEON;
1550 out[3] = chn;
1551 out[4] = note;
1552 out[5] = vel;
1553 used += 4;
1554 break;
1555
1556 /*
1557 * wait delay = (event[2] << 16) + (event[3] << 8) + event[4]
1558 */
1559
1560 case SEQ_PGMCHANGE:
1561 out[0] = EV_CHN_COMMON;
1562 out[1] = dev;
1563 out[2] = MIDI_PGM_CHANGE;
1564 out[3] = chn;
1565 out[4] = note;
1566 out[5] = vel;
1567 used += 4;
1568 break;
1569 /*
1570 out[0] = EV_TIMING;
1571 out[1] = dev;
1572 out[2] = MIDI_PGM_CHANGE;
1573 out[3] = chn;
1574 out[4] = note;
1575 out[5] = vel;
1576 SEQ_DEBUG(4,printf("seq_playevent: synctimer\n"));
1577 break;
1578 */
1579
1580 case SEQ_MIDIPUTC:
1581 SEQ_DEBUG(4,
1582 printf("seq_playevent: put data 0x%02x, unit %d.\n",
1583 event[1], event[2]));
1584 /*
1585 * Pass through to the midi device.
1586 * device = event[2]
1587 * data = event[1]
1588 */
1589 out[0] = SEQ_MIDIPUTC;
1590 out[1] = dev;
1591 out[2] = chn;
1592 used += 4;
1593 break;
1594 #ifdef notyet
1595 case SEQ_ECHO:
1596 /*
1597 * This isn't handled here yet because I don't know if I can
1598 * just use four bytes events. There might be consequences
1599 * in the _read routing
1600 */
1601 if (seq_copytoinput(scp, event, 4) == EAGAIN) {
1602 ret = QUEUEFULL;
1603 break;
1604 }
1605 ret = MORE;
1606 break;
1607 #endif
1608 case SEQ_EXTENDED:
1609 switch (event[1]) {
1610 case SEQ_NOTEOFF:
1611 case SEQ_NOTEON:
1612 case SEQ_PGMCHANGE:
1613 event++;
1614 used = 4;
1615 goto restart;
1616 break;
1617 case SEQ_AFTERTOUCH:
1618 /*
1619 * SYNTH_AFTERTOUCH(md, event[3], event[4])
1620 */
1621 case SEQ_BALANCE:
1622 /*
1623 * SYNTH_PANNING(md, event[3], (char)event[4])
1624 */
1625 case SEQ_CONTROLLER:
1626 /*
1627 * SYNTH_CONTROLLER(md, event[3], event[4], *(short *)&event[5])
1628 */
1629 case SEQ_VOLMODE:
1630 /*
1631 * SYNTH_VOLUMEMETHOD(md, event[3])
1632 */
1633 default:
1634 SEQ_DEBUG(2,
1635 printf("seq_convertold: SEQ_EXTENDED type %d"
1636 "not handled\n", event[1]));
1637 break;
1638 }
1639 break;
1640 case SEQ_WAIT:
1641 out[0] = EV_TIMING;
1642 out[1] = TMR_WAIT_REL;
1643 out[4] = event[2];
1644 out[5] = event[3];
1645 out[6] = event[4];
1646
1647 SEQ_DEBUG(5, printf("SEQ_WAIT %d",
1648 event[2] + (event[3] << 8) + (event[4] << 24)));
1649
1650 used += 4;
1651 break;
1652
1653 case SEQ_ECHO:
1654 case SEQ_SYNCTIMER:
1655 case SEQ_PRIVATE:
1656 default:
1657 SEQ_DEBUG(2,
1658 printf("seq_convertold: event type %d not handled %d %d %d\n",
1659 event[0], event[1], event[2], event[3]));
1660 break;
1661 }
1662 return used;
1663 }
1664
1665 /*
1666 * Writting to the sequencer buffer never blocks and drops
1667 * input which cannot be queued
1668 */
1669 void
1670 seq_copytoinput(struct seq_softc *scp, u_char *event, int len)
1671 {
1672
1673 mtx_assert(&scp->seq_lock, MA_OWNED);
1674
1675 if (MIDIQ_AVAIL(scp->in_q) < len) {
1676 /*
1677 * ENOROOM? EINPUTDROPPED? ETOUGHLUCK?
1678 */
1679 SEQ_DEBUG(2, printf("seq_copytoinput: queue full\n"));
1680 } else {
1681 MIDIQ_ENQ(scp->in_q, event, len);
1682 selwakeup(&scp->in_sel);
1683 cv_broadcast(&scp->in_cv);
1684 }
1685
1686 }
1687
1688 static int
1689 seq_chnvoice(struct seq_softc *scp, kobj_t md, u_char *event)
1690 {
1691 int ret, voice;
1692 u_char cmd, chn, note, parm;
1693
1694 ret = 0;
1695 cmd = event[2];
1696 chn = event[3];
1697 note = event[4];
1698 parm = event[5];
1699
1700 mtx_assert(&scp->seq_lock, MA_OWNED);
1701
1702 SEQ_DEBUG(5, printf("seq_chnvoice: unit %d, dev %d, cmd %s,"
1703 " chn %d, note %d, parm %d.\n", scp->unit, event[1],
1704 midi_cmdname(cmd, cmdtab_seqcv), chn, note, parm));
1705
1706 voice = SYNTH_ALLOC(md, chn, note);
1707
1708 mtx_unlock(&scp->seq_lock);
1709
1710 switch (cmd) {
1711 case MIDI_NOTEON:
1712 if (note < 128 || note == 255) {
1713 #if 0
1714 if (scp->music && chn == 9) {
1715 /*
1716 * This channel is a percussion. The note
1717 * number is the patch number.
1718 */
1719 /*
1720 mtx_unlock(&scp->seq_lock);
1721 if (SYNTH_SETINSTR(md, voice, 128 + note)
1722 == EAGAIN) {
1723 mtx_lock(&scp->seq_lock);
1724 return (QUEUEFULL);
1725 }
1726 mtx_lock(&scp->seq_lock);
1727 */
1728 note = 60; /* Middle C. */
1729 }
1730 #endif
1731 if (scp->music) {
1732 /*
1733 mtx_unlock(&scp->seq_lock);
1734 if (SYNTH_SETUPVOICE(md, voice, chn)
1735 == EAGAIN) {
1736 mtx_lock(&scp->seq_lock);
1737 return (QUEUEFULL);
1738 }
1739 mtx_lock(&scp->seq_lock);
1740 */
1741 }
1742 SYNTH_STARTNOTE(md, voice, note, parm);
1743 }
1744 break;
1745 case MIDI_NOTEOFF:
1746 SYNTH_KILLNOTE(md, voice, note, parm);
1747 break;
1748 case MIDI_KEY_PRESSURE:
1749 SYNTH_AFTERTOUCH(md, voice, parm);
1750 break;
1751 default:
1752 ret = 1;
1753 SEQ_DEBUG(2, printf("seq_chnvoice event type %d not handled\n",
1754 event[1]));
1755 break;
1756 }
1757
1758 mtx_lock(&scp->seq_lock);
1759 return ret;
1760 }
1761
1762 static int
1763 seq_chncommon(struct seq_softc *scp, kobj_t md, u_char *event)
1764 {
1765 int ret;
1766 u_short w14;
1767 u_char cmd, chn, p1;
1768
1769 ret = 0;
1770 cmd = event[2];
1771 chn = event[3];
1772 p1 = event[4];
1773 w14 = *(u_short *)&event[6];
1774
1775 SEQ_DEBUG(5, printf("seq_chncommon: unit %d, dev %d, cmd %s, chn %d,"
1776 " p1 %d, w14 %d.\n", scp->unit, event[1],
1777 midi_cmdname(cmd, cmdtab_seqccmn), chn, p1, w14));
1778 mtx_unlock(&scp->seq_lock);
1779 switch (cmd) {
1780 case MIDI_PGM_CHANGE:
1781 SEQ_DEBUG(4, printf("seq_chncommon pgmchn chn %d pg %d\n",
1782 chn, p1));
1783 SYNTH_SETINSTR(md, chn, p1);
1784 break;
1785 case MIDI_CTL_CHANGE:
1786 SEQ_DEBUG(4, printf("seq_chncommon ctlch chn %d pg %d %d\n",
1787 chn, p1, w14));
1788 SYNTH_CONTROLLER(md, chn, p1, w14);
1789 break;
1790 case MIDI_PITCH_BEND:
1791 if (scp->music) {
1792 /*
1793 * TODO: MIDI_PITCH_BEND
1794 */
1795 #if 0
1796 mtx_lock(&md->synth.vc_mtx);
1797 md->synth.chn_info[chn].bender_value = w14;
1798 if (md->midiunit >= 0) {
1799 /*
1800 * Handle all of the notes playing on this
1801 * channel.
1802 */
1803 key = ((int)chn << 8);
1804 for (i = 0; i < md->synth.alloc.max_voice; i++)
1805 if ((md->synth.alloc.map[i] & 0xff00) == key) {
1806 mtx_unlock(&md->synth.vc_mtx);
1807 mtx_unlock(&scp->seq_lock);
1808 if (md->synth.bender(md, i, w14) == EAGAIN) {
1809 mtx_lock(&scp->seq_lock);
1810 return (QUEUEFULL);
1811 }
1812 mtx_lock(&scp->seq_lock);
1813 }
1814 } else {
1815 mtx_unlock(&md->synth.vc_mtx);
1816 mtx_unlock(&scp->seq_lock);
1817 if (md->synth.bender(md, chn, w14) == EAGAIN) {
1818 mtx_lock(&scp->seq_lock);
1819 return (QUEUEFULL);
1820 }
1821 mtx_lock(&scp->seq_lock);
1822 }
1823 #endif
1824 } else
1825 SYNTH_BENDER(md, chn, w14);
1826 break;
1827 default:
1828 ret = 1;
1829 SEQ_DEBUG(2,
1830 printf("seq_chncommon event type %d not handled.\n",
1831 event[1]));
1832 break;
1833
1834 }
1835 mtx_lock(&scp->seq_lock);
1836 return ret;
1837 }
1838
1839 static int
1840 seq_timing(struct seq_softc *scp, u_char *event)
1841 {
1842 int param;
1843 int ret;
1844
1845 ret = 0;
1846 param = event[4] + (event[5] << 8) +
1847 (event[6] << 16) + (event[7] << 24);
1848
1849 SEQ_DEBUG(5, printf("seq_timing: unit %d, cmd %d, param %d.\n",
1850 scp->unit, event[1], param));
1851 switch (event[1]) {
1852 case TMR_WAIT_REL:
1853 timer_wait(scp, param, 0);
1854 break;
1855 case TMR_WAIT_ABS:
1856 timer_wait(scp, param, 1);
1857 break;
1858 case TMR_START:
1859 timer_start(scp);
1860 cv_broadcast(&scp->reset_cv);
1861 break;
1862 case TMR_STOP:
1863 timer_stop(scp);
1864 /*
1865 * The following cv_broadcast isn't needed since we only
1866 * wait for 0->1 transitions. It probably won't hurt
1867 */
1868 cv_broadcast(&scp->reset_cv);
1869 break;
1870 case TMR_CONTINUE:
1871 timer_continue(scp);
1872 cv_broadcast(&scp->reset_cv);
1873 break;
1874 case TMR_TEMPO:
1875 if (param < 8)
1876 param = 8;
1877 if (param > 360)
1878 param = 360;
1879 SEQ_DEBUG(4, printf("Timer set tempo %d\n", param));
1880 timer_setvals(scp, param, scp->timerbase);
1881 break;
1882 case TMR_TIMERBASE:
1883 if (param < 1)
1884 param = 1;
1885 if (param > 1000)
1886 param = 1000;
1887 SEQ_DEBUG(4, printf("Timer set timerbase %d\n", param));
1888 timer_setvals(scp, scp->tempo, param);
1889 break;
1890 case TMR_ECHO:
1891 /*
1892 * TODO: Consider making 4-byte events for /dev/sequencer
1893 * PRO: Maybe needed by legacy apps
1894 * CON: soundcard.h has been warning for a while many years
1895 * to expect 8 byte events.
1896 */
1897 #if 0
1898 if (scp->music)
1899 seq_copytoinput(scp, event, 8);
1900 else {
1901 param = (param << 8 | SEQ_ECHO);
1902 seq_copytoinput(scp, (u_char *)¶m, 4);
1903 }
1904 #else
1905 seq_copytoinput(scp, event, 8);
1906 #endif
1907 break;
1908 default:
1909 SEQ_DEBUG(2, printf("seq_timing event type %d not handled.\n",
1910 event[1]));
1911 ret = 1;
1912 break;
1913 }
1914 return ret;
1915 }
1916
1917 static int
1918 seq_local(struct seq_softc *scp, u_char *event)
1919 {
1920 int ret;
1921
1922 ret = 0;
1923 mtx_assert(&scp->seq_lock, MA_OWNED);
1924
1925 SEQ_DEBUG(5, printf("seq_local: unit %d, cmd %d\n", scp->unit,
1926 event[1]));
1927 switch (event[1]) {
1928 default:
1929 SEQ_DEBUG(1, printf("seq_local event type %d not handled\n",
1930 event[1]));
1931 ret = 1;
1932 break;
1933 }
1934 return ret;
1935 }
1936
1937 static int
1938 seq_sysex(struct seq_softc *scp, kobj_t md, u_char *event)
1939 {
1940 int i, l;
1941
1942 mtx_assert(&scp->seq_lock, MA_OWNED);
1943 SEQ_DEBUG(5, printf("seq_sysex: unit %d device %d\n", scp->unit,
1944 event[1]));
1945 l = 0;
1946 for (i = 0; i < 6 && event[i + 2] != 0xff; i++)
1947 l = i + 1;
1948 if (l > 0) {
1949 mtx_unlock(&scp->seq_lock);
1950 if (SYNTH_SENDSYSEX(md, &event[2], l) == EAGAIN) {
1951 mtx_lock(&scp->seq_lock);
1952 return 1;
1953 }
1954 mtx_lock(&scp->seq_lock);
1955 }
1956 return 0;
1957 }
1958
1959 /*
1960 * Reset no longer closes the raw devices nor seq_sync's
1961 * Callers are IOCTL and seq_close
1962 */
1963 static void
1964 seq_reset(struct seq_softc *scp)
1965 {
1966 int chn, i;
1967 kobj_t m;
1968
1969 mtx_assert(&scp->seq_lock, MA_OWNED);
1970
1971 SEQ_DEBUG(5, printf("seq_reset: unit %d.\n", scp->unit));
1972
1973 /*
1974 * Stop reading and writing.
1975 */
1976
1977 /* scp->recording = 0; */
1978 scp->playing = 0;
1979 cv_broadcast(&scp->state_cv);
1980 cv_broadcast(&scp->out_cv);
1981 cv_broadcast(&scp->reset_cv);
1982
1983 /*
1984 * For now, don't reset the timers.
1985 */
1986 MIDIQ_CLEAR(scp->in_q);
1987 MIDIQ_CLEAR(scp->out_q);
1988
1989 for (i = 0; i < scp->midi_number; i++) {
1990 m = scp->midis[i];
1991 mtx_unlock(&scp->seq_lock);
1992 SYNTH_RESET(m);
1993 for (chn = 0; chn < 16; chn++) {
1994 SYNTH_CONTROLLER(m, chn, 123, 0);
1995 SYNTH_CONTROLLER(m, chn, 121, 0);
1996 SYNTH_BENDER(m, chn, 1 << 13);
1997 }
1998 mtx_lock(&scp->seq_lock);
1999 }
2000 }
2001
2002 /*
2003 * seq_sync
2004 * *really* flush the output queue
2005 * flush the event queue, then flush the synthsisers.
2006 * Callers are IOCTL and close
2007 */
2008
2009 #define SEQ_SYNC_TIMEOUT 8
2010 static int
2011 seq_sync(struct seq_softc *scp)
2012 {
2013 int i, rl, sync[16], done;
2014
2015 mtx_assert(&scp->seq_lock, MA_OWNED);
2016
2017 SEQ_DEBUG(4, printf("seq_sync: unit %d.\n", scp->unit));
2018
2019 /*
2020 * Wait until output queue is empty. Check every so often to see if
2021 * the queue is moving along. If it isn't just abort.
2022 */
2023 while (!MIDIQ_EMPTY(scp->out_q)) {
2024
2025 if (!scp->playing) {
2026 scp->playing = 1;
2027 cv_broadcast(&scp->state_cv);
2028 cv_broadcast(&scp->out_cv);
2029 }
2030 rl = MIDIQ_LEN(scp->out_q);
2031
2032 i = cv_timedwait_sig(&scp->out_cv,
2033 &scp->seq_lock, SEQ_SYNC_TIMEOUT * hz);
2034
2035 if (i == EINTR || i == ERESTART) {
2036 if (i == EINTR) {
2037 /*
2038 * XXX: I don't know why we stop playing
2039 */
2040 scp->playing = 0;
2041 cv_broadcast(&scp->out_cv);
2042 }
2043 return i;
2044 }
2045 if (i == EWOULDBLOCK && rl == MIDIQ_LEN(scp->out_q) &&
2046 scp->waiting == 0) {
2047 /*
2048 * A queue seems to be stuck up. Give up and clear
2049 * queues.
2050 */
2051 MIDIQ_CLEAR(scp->out_q);
2052 scp->playing = 0;
2053 cv_broadcast(&scp->state_cv);
2054 cv_broadcast(&scp->out_cv);
2055 cv_broadcast(&scp->reset_cv);
2056
2057 /*
2058 * TODO: Consider if the raw devices need to be flushed
2059 */
2060
2061 SEQ_DEBUG(1, printf("seq_sync queue stuck, aborting\n"));
2062
2063 return i;
2064 }
2065 }
2066
2067 scp->playing = 0;
2068 /*
2069 * Since syncing a midi device might block, unlock scp->seq_lock.
2070 */
2071
2072 mtx_unlock(&scp->seq_lock);
2073 for (i = 0; i < scp->midi_number; i++)
2074 sync[i] = 1;
2075
2076 do {
2077 done = 1;
2078 for (i = 0; i < scp->midi_number; i++)
2079 if (sync[i]) {
2080 if (SYNTH_INSYNC(scp->midis[i]) == 0)
2081 sync[i] = 0;
2082 else
2083 done = 0;
2084 }
2085 if (!done)
2086 DELAY(5000);
2087
2088 } while (!done);
2089
2090 mtx_lock(&scp->seq_lock);
2091 return 0;
2092 }
2093
2094 char *
2095 midi_cmdname(int cmd, midi_cmdtab *tab)
2096 {
2097 while (tab->name != NULL) {
2098 if (cmd == tab->cmd)
2099 return (tab->name);
2100 tab++;
2101 }
2102
2103 return ("unknown");
2104 }
Cache object: 1007dee3a5c611ff18008c533f334de7
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