sequencer.c revision 162776
1/* 2 * The sequencer personality manager. 3 * (c) 2003 Mathew Kanner 4 * Copyright by Hannu Savolainen 1993 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are 8 * met: 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 2. 10 * Redistributions in binary form must reproduce the above copyright notice, 11 * this list of conditions and the following disclaimer in the documentation 12 * and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 17 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 18 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 20 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 21 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> 28__FBSDID("$FreeBSD: head/sys/dev/sound/midi/sequencer.c 162776 2006-09-29 09:28:22Z ru $"); 29 30#include <sys/param.h> 31#include <sys/systm.h> 32#include <sys/ioccom.h> 33 34#include <sys/filio.h> 35#include <sys/lock.h> 36#include <sys/sockio.h> 37#include <sys/fcntl.h> 38#include <sys/tty.h> 39#include <sys/proc.h> 40#include <sys/sysctl.h> 41 42#include <sys/kernel.h> /* for DATA_SET */ 43 44#include <sys/module.h> 45#include <sys/conf.h> 46#include <sys/file.h> 47#include <sys/uio.h> 48#include <sys/syslog.h> 49#include <sys/errno.h> 50#include <sys/malloc.h> 51#include <sys/bus.h> 52#include <machine/resource.h> 53#include <machine/bus.h> 54#include <machine/clock.h> /* for DELAY */ 55#include <sys/soundcard.h> 56#include <sys/rman.h> 57#include <sys/mman.h> 58#include <sys/poll.h> 59#include <sys/mutex.h> 60#include <sys/condvar.h> 61#include <sys/kthread.h> 62#include <sys/unistd.h> 63#include <sys/selinfo.h> 64 65 66#include <dev/sound/midi/midi.h> 67#include <dev/sound/midi/midiq.h> 68#include "synth_if.h" 69 70#include <dev/sound/midi/sequencer.h> 71 72#define TMR_TIMERBASE 13 73 74#define SND_DEV_SEQ 1 /* Sequencer output /dev/sequencer (FM 75 synthesizer and MIDI output) */ 76#define SND_DEV_MUSIC 8 /* /dev/music, level 2 interface */ 77 78/* Length of a sequencer event. */ 79#define EV_SZ 8 80#define IEV_SZ 8 81 82/* Lookup modes */ 83#define LOOKUP_EXIST (0) 84#define LOOKUP_OPEN (1) 85#define LOOKUP_CLOSE (2) 86 87#define PCMMKMINOR(u, d, c) \ 88 ((((c) & 0xff) << 16) | (((u) & 0x0f) << 4) | ((d) & 0x0f)) 89#define MIDIMKMINOR(u, d, c) PCMMKMINOR(u, d, c) 90#define MIDIUNIT(y) ((minor(y) >> 4) & 0x0f) 91#define MIDIDEV(y) (minor(y) & 0x0f) 92 93/* These are the entries to the sequencer driver. */ 94static d_open_t seq_open; 95static d_close_t seq_close; 96static d_ioctl_t seq_ioctl; 97static d_read_t seq_read; 98static d_write_t seq_write; 99static d_poll_t seq_poll; 100 101static struct cdevsw seq_cdevsw = { 102 .d_version = D_VERSION, 103 .d_open = seq_open, 104 .d_close = seq_close, 105 .d_read = seq_read, 106 .d_write = seq_write, 107 .d_ioctl = seq_ioctl, 108 .d_poll = seq_poll, 109 .d_name = "sequencer", 110}; 111 112struct seq_softc { 113 KOBJ_FIELDS; 114 115 struct mtx seq_lock, q_lock; 116 struct cv empty_cv, reset_cv, in_cv, out_cv, state_cv, th_cv; 117 118 MIDIQ_HEAD(, u_char) in_q, out_q; 119 120 u_long flags; 121 /* Flags (protected by flag_mtx of mididev_info) */ 122 int fflags; /* Access mode */ 123 int music; 124 125 int out_water; /* Sequence output threshould */ 126 snd_sync_parm sync_parm; /* AIOSYNC parameter set */ 127 struct thread *sync_thread; /* AIOSYNCing thread */ 128 struct selinfo in_sel, out_sel; 129 int midi_number; 130 struct cdev *seqdev, *musicdev; 131 int unit; 132 int maxunits; 133 kobj_t *midis; 134 int *midi_flags; 135 kobj_t mapper; 136 void *mapper_cookie; 137 struct timeval timerstop, timersub; 138 int timerbase, tempo; 139 int timerrun; 140 int done; 141 int playing; 142 int recording; 143 int busy; 144 int pre_event_timeout; 145 int waiting; 146}; 147 148/* 149 * Module specific stuff, including how many sequecers 150 * we currently own. 151 */ 152 153SYSCTL_NODE(_hw_midi, OID_AUTO, seq, CTLFLAG_RD, 0, "Midi sequencer"); 154 155int seq_debug; 156/* XXX: should this be moved into debug.midi? */ 157SYSCTL_INT(_hw_midi_seq, OID_AUTO, debug, CTLFLAG_RW, &seq_debug, 0, ""); 158 159midi_cmdtab cmdtab_seqevent[] = { 160 {SEQ_NOTEOFF, "SEQ_NOTEOFF"}, 161 {SEQ_NOTEON, "SEQ_NOTEON"}, 162 {SEQ_WAIT, "SEQ_WAIT"}, 163 {SEQ_PGMCHANGE, "SEQ_PGMCHANGE"}, 164 {SEQ_SYNCTIMER, "SEQ_SYNCTIMER"}, 165 {SEQ_MIDIPUTC, "SEQ_MIDIPUTC"}, 166 {SEQ_DRUMON, "SEQ_DRUMON"}, 167 {SEQ_DRUMOFF, "SEQ_DRUMOFF"}, 168 {SEQ_ECHO, "SEQ_ECHO"}, 169 {SEQ_AFTERTOUCH, "SEQ_AFTERTOUCH"}, 170 {SEQ_CONTROLLER, "SEQ_CONTROLLER"}, 171 {SEQ_BALANCE, "SEQ_BALANCE"}, 172 {SEQ_VOLMODE, "SEQ_VOLMODE"}, 173 {SEQ_FULLSIZE, "SEQ_FULLSIZE"}, 174 {SEQ_PRIVATE, "SEQ_PRIVATE"}, 175 {SEQ_EXTENDED, "SEQ_EXTENDED"}, 176 {EV_SEQ_LOCAL, "EV_SEQ_LOCAL"}, 177 {EV_TIMING, "EV_TIMING"}, 178 {EV_CHN_COMMON, "EV_CHN_COMMON"}, 179 {EV_CHN_VOICE, "EV_CHN_VOICE"}, 180 {EV_SYSEX, "EV_SYSEX"}, 181 {-1, NULL}, 182}; 183 184midi_cmdtab cmdtab_seqioctl[] = { 185 {SNDCTL_SEQ_RESET, "SNDCTL_SEQ_RESET"}, 186 {SNDCTL_SEQ_SYNC, "SNDCTL_SEQ_SYNC"}, 187 {SNDCTL_SYNTH_INFO, "SNDCTL_SYNTH_INFO"}, 188 {SNDCTL_SEQ_CTRLRATE, "SNDCTL_SEQ_CTRLRATE"}, 189 {SNDCTL_SEQ_GETOUTCOUNT, "SNDCTL_SEQ_GETOUTCOUNT"}, 190 {SNDCTL_SEQ_GETINCOUNT, "SNDCTL_SEQ_GETINCOUNT"}, 191 {SNDCTL_SEQ_PERCMODE, "SNDCTL_SEQ_PERCMODE"}, 192 {SNDCTL_FM_LOAD_INSTR, "SNDCTL_FM_LOAD_INSTR"}, 193 {SNDCTL_SEQ_TESTMIDI, "SNDCTL_SEQ_TESTMIDI"}, 194 {SNDCTL_SEQ_RESETSAMPLES, "SNDCTL_SEQ_RESETSAMPLES"}, 195 {SNDCTL_SEQ_NRSYNTHS, "SNDCTL_SEQ_NRSYNTHS"}, 196 {SNDCTL_SEQ_NRMIDIS, "SNDCTL_SEQ_NRMIDIS"}, 197 {SNDCTL_SEQ_GETTIME, "SNDCTL_SEQ_GETTIME"}, 198 {SNDCTL_MIDI_INFO, "SNDCTL_MIDI_INFO"}, 199 {SNDCTL_SEQ_THRESHOLD, "SNDCTL_SEQ_THRESHOLD"}, 200 {SNDCTL_SYNTH_MEMAVL, "SNDCTL_SYNTH_MEMAVL"}, 201 {SNDCTL_FM_4OP_ENABLE, "SNDCTL_FM_4OP_ENABLE"}, 202 {SNDCTL_PMGR_ACCESS, "SNDCTL_PMGR_ACCESS"}, 203 {SNDCTL_SEQ_PANIC, "SNDCTL_SEQ_PANIC"}, 204 {SNDCTL_SEQ_OUTOFBAND, "SNDCTL_SEQ_OUTOFBAND"}, 205 {SNDCTL_TMR_TIMEBASE, "SNDCTL_TMR_TIMEBASE"}, 206 {SNDCTL_TMR_START, "SNDCTL_TMR_START"}, 207 {SNDCTL_TMR_STOP, "SNDCTL_TMR_STOP"}, 208 {SNDCTL_TMR_CONTINUE, "SNDCTL_TMR_CONTINUE"}, 209 {SNDCTL_TMR_TEMPO, "SNDCTL_TMR_TEMPO"}, 210 {SNDCTL_TMR_SOURCE, "SNDCTL_TMR_SOURCE"}, 211 {SNDCTL_TMR_METRONOME, "SNDCTL_TMR_METRONOME"}, 212 {SNDCTL_TMR_SELECT, "SNDCTL_TMR_SELECT"}, 213 {SNDCTL_MIDI_PRETIME, "SNDCTL_MIDI_PRETIME"}, 214 {AIONWRITE, "AIONWRITE"}, 215 {AIOGSIZE, "AIOGSIZE"}, 216 {AIOSSIZE, "AIOSSIZE"}, 217 {AIOGFMT, "AIOGFMT"}, 218 {AIOSFMT, "AIOSFMT"}, 219 {AIOGMIX, "AIOGMIX"}, 220 {AIOSMIX, "AIOSMIX"}, 221 {AIOSTOP, "AIOSTOP"}, 222 {AIOSYNC, "AIOSYNC"}, 223 {AIOGCAP, "AIOGCAP"}, 224 {-1, NULL}, 225}; 226 227midi_cmdtab cmdtab_timer[] = { 228 {TMR_WAIT_REL, "TMR_WAIT_REL"}, 229 {TMR_WAIT_ABS, "TMR_WAIT_ABS"}, 230 {TMR_STOP, "TMR_STOP"}, 231 {TMR_START, "TMR_START"}, 232 {TMR_CONTINUE, "TMR_CONTINUE"}, 233 {TMR_TEMPO, "TMR_TEMPO"}, 234 {TMR_ECHO, "TMR_ECHO"}, 235 {TMR_CLOCK, "TMR_CLOCK"}, 236 {TMR_SPP, "TMR_SPP"}, 237 {TMR_TIMESIG, "TMR_TIMESIG"}, 238 {-1, NULL}, 239}; 240 241midi_cmdtab cmdtab_seqcv[] = { 242 {MIDI_NOTEOFF, "MIDI_NOTEOFF"}, 243 {MIDI_NOTEON, "MIDI_NOTEON"}, 244 {MIDI_KEY_PRESSURE, "MIDI_KEY_PRESSURE"}, 245 {-1, NULL}, 246}; 247 248midi_cmdtab cmdtab_seqccmn[] = { 249 {MIDI_CTL_CHANGE, "MIDI_CTL_CHANGE"}, 250 {MIDI_PGM_CHANGE, "MIDI_PGM_CHANGE"}, 251 {MIDI_CHN_PRESSURE, "MIDI_CHN_PRESSURE"}, 252 {MIDI_PITCH_BEND, "MIDI_PITCH_BEND"}, 253 {MIDI_SYSTEM_PREFIX, "MIDI_SYSTEM_PREFIX"}, 254 {-1, NULL}, 255}; 256 257/* 258 * static const char *mpu401_mprovider(kobj_t obj, struct mpu401 *m); 259 */ 260 261static kobj_method_t seq_methods[] = { 262 /* KOBJMETHOD(mpu_provider,mpu401_mprovider), */ 263 { 0, 0 } 264}; 265DEFINE_CLASS(sequencer, seq_methods, 0); 266 267/* The followings are the local function. */ 268static int seq_convertold(u_char *event, u_char *out); 269/* 270 * static void seq_midiinput(struct seq_softc * scp, void *md); 271 */ 272static void seq_reset(struct seq_softc * scp); 273static int seq_sync(struct seq_softc * scp); 274 275static int seq_processevent(struct seq_softc * scp, u_char *event); 276 277static int seq_timing(struct seq_softc * scp, u_char *event); 278static int seq_local(struct seq_softc * scp, u_char *event); 279 280static int seq_chnvoice(struct seq_softc * scp, kobj_t md, u_char *event); 281static int seq_chncommon(struct seq_softc * scp, kobj_t md, u_char *event); 282static int seq_sysex(struct seq_softc * scp, kobj_t md, u_char *event); 283 284static int seq_fetch_mid(struct seq_softc *scp, int unit, kobj_t *md); 285void seq_copytoinput(struct seq_softc *scp, u_char *event, int len); 286int seq_modevent(module_t mod, int type, void *data); 287struct seq_softc *seqs[10]; 288static struct mtx seqinfo_mtx; 289static u_long nseq = 0; 290 291static void timer_start(struct seq_softc *t); 292static void timer_stop(struct seq_softc *t); 293static void timer_setvals(struct seq_softc *t, int tempo, int timerbase); 294static void timer_wait(struct seq_softc *t, int ticks, int wait_abs); 295static int timer_now(struct seq_softc *t); 296 297 298static void 299timer_start(struct seq_softc *t) 300{ 301 t->timerrun = 1; 302 getmicrotime(&t->timersub); 303} 304 305static void 306timer_continue(struct seq_softc *t) 307{ 308 struct timeval now; 309 310 if (t->timerrun == 1) 311 return; 312 t->timerrun = 1; 313 getmicrotime(&now); 314 timevalsub(&now, &t->timerstop); 315 timevaladd(&t->timersub, &now); 316} 317 318static void 319timer_stop(struct seq_softc *t) 320{ 321 t->timerrun = 0; 322 getmicrotime(&t->timerstop); 323} 324 325static void 326timer_setvals(struct seq_softc *t, int tempo, int timerbase) 327{ 328 t->tempo = tempo; 329 t->timerbase = timerbase; 330} 331 332static void 333timer_wait(struct seq_softc *t, int ticks, int wait_abs) 334{ 335 struct timeval now, when; 336 int ret; 337 unsigned long long i; 338 339 while (t->timerrun == 0) { 340 SEQ_DEBUG(2,printf("Timer wait when timer isn't running\n")); 341 /* 342 * The old sequencer used timeouts that only increased 343 * the timer when the timer was running. 344 * Hence the sequencer would stick (?) if the 345 * timer was disabled. 346 */ 347 cv_wait(&t->reset_cv, &t->seq_lock); 348 if (t->playing == 0) 349 return; 350 } 351 352 i = ticks * 60ull * 1000000ull / (t->tempo * t->timerbase); 353 354 when.tv_sec = i / 1000000; 355 when.tv_usec = i % 1000000; 356 357#if 0 358 printf("timer_wait tempo %d timerbase %d ticks %d abs %d u_sec %llu\n", t->tempo, t->timerbase, ticks, wait_abs, i); 359#endif 360 361 if (wait_abs != 0) { 362 getmicrotime(&now); 363 timevalsub(&now, &t->timersub); 364 timevalsub(&when, &now); 365 } 366 367 if (when.tv_sec < 0 || when.tv_usec < 0) { 368 SEQ_DEBUG(3,printf("seq_timer error negative time %lds.%06lds\n", 369 (long)when.tv_sec,(long)when.tv_usec)); 370 return; 371 } 372 373 i = when.tv_sec * 1000000ull; 374 i += when.tv_usec; 375 i *= hz; 376 i /= 1000000ull; 377#if 0 378 printf("seq_timer usec %llu ticks %llu\n", when.tv_sec * 1000000ull + when.tv_usec, i); 379#endif 380 t->waiting = 1; 381 ret = cv_timedwait(&t->reset_cv, &t->seq_lock, i + 1); 382 t->waiting = 0; 383 384 if (ret != EWOULDBLOCK) 385 SEQ_DEBUG(3,printf("seq_timer didn't timeout\n")); 386 387} 388 389static int 390timer_now(struct seq_softc *t) 391{ 392 struct timeval now; 393 unsigned long long i; 394 int ret; 395 396 if (t->timerrun == 0) 397 now = t->timerstop; 398 else 399 getmicrotime(&now); 400 401 timevalsub(&now, &t->timersub); 402 403 i = now.tv_sec * 1000000ull; 404 i += now.tv_usec; 405 i *= t->timerbase; 406/* i /= t->tempo; */ 407 i /= 1000000ull; 408 409 ret = i; 410 /* 411 * printf("timer_now: %llu %d\n", i, ret); 412 */ 413 414 return ret; 415} 416 417static void 418seq_eventthread(void *arg) 419{ 420 struct seq_softc *scp = arg; 421 char event[EV_SZ]; 422 423 mtx_lock(&scp->seq_lock); 424 SEQ_DEBUG(2,printf("seq_eventthread started\n")); 425 while(scp->done == 0) { 426restart: 427 while (scp->playing == 0) { 428 cv_wait(&scp->state_cv, &scp->seq_lock); 429 if (scp->done) 430 goto done; 431 } 432 433 while (MIDIQ_EMPTY(scp->out_q)) { 434 cv_broadcast(&scp->empty_cv); 435 cv_wait(&scp->out_cv, &scp->seq_lock); 436 if (scp->playing == 0) 437 goto restart; 438 if (scp->done) 439 goto done; 440 } 441 442 MIDIQ_DEQ(scp->out_q, event, EV_SZ); 443 444 if (MIDIQ_AVAIL(scp->out_q) < scp->out_water) { 445 cv_broadcast(&scp->out_cv); 446 selwakeup(&scp->out_sel); 447 } 448 449 seq_processevent(scp, event); 450 } 451 452done: 453 cv_broadcast(&scp->th_cv); 454 mtx_unlock(&scp->seq_lock); 455 mtx_lock(&Giant); 456 SEQ_DEBUG(2,printf("seq_eventthread finished\n")); 457 kthread_exit(0); 458} 459 460/* 461 * seq_processevent: This maybe called by the event thread or the IOCTL 462 * handler for queued and out of band events respectively. 463 */ 464static int 465seq_processevent(struct seq_softc *scp, u_char *event) 466{ 467 int ret; 468 kobj_t m; 469 470 ret = 0; 471 472 if (event[0] == EV_SEQ_LOCAL) 473 ret = seq_local(scp, event); 474 else if (event[0] == EV_TIMING) 475 ret = seq_timing(scp, event); 476 else if (event[0] != EV_CHN_VOICE && 477 event[0] != EV_CHN_COMMON && 478 event[0] != EV_SYSEX && 479 event[0] != SEQ_MIDIPUTC) { 480 ret = 1; 481 SEQ_DEBUG(2,printf("seq_processevent not known %d\n", event[0])); 482 } else if (seq_fetch_mid(scp, event[1], &m) != 0) { 483 ret = 1; 484 SEQ_DEBUG(2,printf("seq_processevent midi unit not found %d\n", event[1])); 485 } else switch(event[0]) { 486 case EV_CHN_VOICE: 487 ret = seq_chnvoice(scp, m, event); 488 break; 489 case EV_CHN_COMMON: 490 ret = seq_chncommon(scp, m, event); 491 break; 492 case EV_SYSEX: 493 ret = seq_sysex(scp, m, event); 494 break; 495 case SEQ_MIDIPUTC: 496 mtx_unlock(&scp->seq_lock); 497 ret = SYNTH_WRITERAW(m, &event[2], 1); 498 mtx_lock(&scp->seq_lock); 499 break; 500 } 501 return ret; 502} 503 504static int 505seq_addunit(void) 506{ 507 struct seq_softc *scp; 508 int ret; 509 u_char *buf; 510 511 /* Allocate the softc. */ 512 ret = ENOMEM; 513 scp = malloc(sizeof(*scp), M_DEVBUF, M_NOWAIT | M_ZERO); 514 if (scp == NULL) { 515 SEQ_DEBUG(1,printf("seq_addunit: softc allocation failed.\n")); 516 goto err; 517 } 518 kobj_init((kobj_t) scp, &sequencer_class); 519 520 buf = malloc(sizeof(*buf) * EV_SZ * 1024, M_TEMP, M_NOWAIT | M_ZERO); 521 if (buf == NULL) 522 goto err; 523 MIDIQ_INIT(scp->in_q, buf, EV_SZ * 1024); 524 buf = malloc(sizeof(*buf) * EV_SZ * 1024, M_TEMP, M_NOWAIT | M_ZERO); 525 if (buf == NULL) 526 goto err; 527 MIDIQ_INIT(scp->out_q, buf, EV_SZ * 1024); 528 ret = EINVAL; 529 530 scp->midis = malloc(sizeof(kobj_t) * 32, M_TEMP, M_NOWAIT | M_ZERO); 531 scp->midi_flags = malloc(sizeof(*scp->midi_flags) * 32, M_TEMP, 532 M_NOWAIT | M_ZERO); 533 534 if ( scp->midis == NULL || scp->midi_flags == NULL) 535 goto err; 536 537 scp->flags = 0; 538 539 mtx_init(&scp->seq_lock, "seqflq", 0, 0); 540 cv_init(&scp->state_cv, "seqstate"); 541 cv_init(&scp->empty_cv, "seqempty"); 542 cv_init(&scp->reset_cv, "seqtimer"); 543 cv_init(&scp->out_cv, "seqqout"); 544 cv_init(&scp->in_cv, "seqqin"); 545 cv_init(&scp->th_cv, "seqstart"); 546 547 /* 548 * Init the damn timer 549 */ 550 551 scp->mapper = midimapper_addseq(scp, &scp->unit, &scp->mapper_cookie); 552 if (scp->mapper == NULL) 553 goto err; 554 555 scp->seqdev = make_dev(&seq_cdevsw, 556 MIDIMKMINOR(scp->unit, SND_DEV_SEQ,0), UID_ROOT, 557 GID_WHEEL, 0666, "sequencer%d", scp->unit); 558 559 scp->musicdev = make_dev(&seq_cdevsw, 560 MIDIMKMINOR(scp->unit, SND_DEV_MUSIC,0), UID_ROOT, 561 GID_WHEEL, 0666, "music%d", scp->unit); 562 563 if (scp->seqdev == NULL || scp->musicdev == NULL) 564 goto err; 565 /* 566 * TODO: Add to list of sequencers this module provides 567 */ 568 569 ret = kthread_create(seq_eventthread, scp, NULL, RFHIGHPID, 0, "sequencer %02d", scp->unit); 570 571 if (ret) 572 goto err; 573 574 scp->seqdev->si_drv1 = scp->musicdev->si_drv1 = scp; 575 576 SEQ_DEBUG(2,printf("sequencer %d created scp %p\n", scp->unit, scp)); 577 578 ret = 0; 579 580 mtx_lock(&seqinfo_mtx); 581 seqs[nseq++]=scp; 582 mtx_unlock(&seqinfo_mtx); 583 584 goto ok; 585 586err: 587 if (scp != NULL) { 588 if (scp->seqdev != NULL) 589 destroy_dev(scp->seqdev); 590 if (scp->musicdev != NULL) 591 destroy_dev(scp->musicdev); 592 /* 593 * TODO: Destroy mutex and cv 594 */ 595 if (scp->midis != NULL) 596 free(scp->midis, M_TEMP); 597 if (scp->midi_flags != NULL) 598 free(scp->midi_flags, M_TEMP); 599 if (scp->out_q.b) 600 free(scp->out_q.b, M_TEMP); 601 if (scp->in_q.b) 602 free(scp->in_q.b, M_TEMP); 603 free(scp, M_DEVBUF); 604 } 605ok: 606 return ret; 607} 608 609static int 610seq_delunit(int unit) 611{ 612 struct seq_softc *scp = seqs[unit]; 613 int i; 614 615 //SEQ_DEBUG(4,printf("seq_delunit: %d\n", unit)); 616 printf("seq_delunit: 1 \n"); 617 mtx_lock(&scp->seq_lock); 618 619 scp->playing = 0; 620 scp->done = 1; 621 cv_broadcast(&scp->out_cv); 622 cv_broadcast(&scp->state_cv); 623 cv_broadcast(&scp->reset_cv); 624 printf("seq_delunit: 2 \n"); 625 cv_wait(&scp->th_cv, &scp->seq_lock); 626 printf("seq_delunit: 3.0 \n"); 627 mtx_unlock(&scp->seq_lock); 628 printf("seq_delunit: 3.1 \n"); 629 630 cv_destroy(&scp->state_cv); 631 printf("seq_delunit: 4 \n"); 632 cv_destroy(&scp->empty_cv); 633 printf("seq_delunit: 5 \n"); 634 cv_destroy(&scp->reset_cv); 635 printf("seq_delunit: 6 \n"); 636 cv_destroy(&scp->out_cv); 637 printf("seq_delunit: 7 \n"); 638 cv_destroy(&scp->in_cv); 639 printf("seq_delunit: 8 \n"); 640 cv_destroy(&scp->th_cv); 641 642 printf("seq_delunit: 10 \n"); 643 if (scp->seqdev) 644 destroy_dev(scp->seqdev); 645 printf("seq_delunit: 11 \n"); 646 if (scp->musicdev) 647 destroy_dev(scp->musicdev); 648 printf("seq_delunit: 12 \n"); 649 scp->seqdev = scp->musicdev = NULL; 650 if (scp->midis != NULL) 651 free(scp->midis, M_TEMP); 652 printf("seq_delunit: 13 \n"); 653 if (scp->midi_flags != NULL) 654 free(scp->midi_flags, M_TEMP); 655 printf("seq_delunit: 14 \n"); 656 free(scp->out_q.b, M_TEMP); 657 printf("seq_delunit: 15 \n"); 658 free(scp->in_q.b, M_TEMP); 659 660 printf("seq_delunit: 16 \n"); 661 662 mtx_destroy(&scp->seq_lock); 663 printf("seq_delunit: 17 \n"); 664 free(scp, M_DEVBUF); 665 666 mtx_lock(&seqinfo_mtx); 667 for ( i = unit ; i < (nseq - 1) ; i++ ) 668 seqs[i] = seqs[i+1]; 669 nseq--; 670 mtx_unlock(&seqinfo_mtx); 671 672 return 0; 673} 674 675int 676seq_modevent(module_t mod, int type, void *data) 677{ 678 int retval, r; 679 680 retval = 0; 681 682 switch (type) { 683 case MOD_LOAD: 684 mtx_init(&seqinfo_mtx, "seqmod", 0, 0); 685 retval = seq_addunit(); 686 break; 687 688 case MOD_UNLOAD: 689 while (nseq) { 690 r=seq_delunit(nseq-1); 691 if (r) { 692 retval = r; 693 break; 694 } 695 } 696 if(nseq == 0) { 697 retval = 0; 698 mtx_destroy(&seqinfo_mtx); 699 } 700 break; 701 702 default: 703 break; 704 } 705 706 return retval; 707} 708 709static int 710seq_fetch_mid(struct seq_softc *scp, int unit, kobj_t *md) 711{ 712 713 if (unit > scp->midi_number || unit < 0) 714 return EINVAL; 715 716 *md = scp->midis[unit]; 717 718 return 0; 719} 720 721int 722seq_open(struct cdev *i_dev, int flags, int mode, struct thread *td) 723{ 724 struct seq_softc *scp = i_dev->si_drv1; 725 int i; 726 727 if (scp == NULL) 728 return ENXIO; 729 730 SEQ_DEBUG(3,printf("seq_open: scp %p unit %d, flags 0x%x.\n", 731 scp, scp->unit, flags)); 732 733 /* 734 * Mark this device busy. 735 */ 736 737 mtx_lock(&scp->seq_lock); 738 if (scp->busy) { 739 mtx_unlock(&scp->seq_lock); 740 SEQ_DEBUG(2,printf("seq_open: unit %d is busy.\n", scp->unit)); 741 return EBUSY; 742 } 743 scp->fflags = flags; 744 /* 745 if ((scp->fflags & O_NONBLOCK) != 0) 746 scp->flags |= SEQ_F_NBIO; 747 */ 748 scp->music = MIDIDEV(i_dev) == SND_DEV_MUSIC; 749 750 /* 751 * Enumerate the available midi devices 752 */ 753 scp->midi_number = 0; 754 scp->maxunits = midimapper_open(scp->mapper, &scp->mapper_cookie); 755 756 if (scp->maxunits == 0) 757 SEQ_DEBUG(2,printf("seq_open: no midi devices\n")); 758 759 for (i = 0 ; i < scp->maxunits; i++) { 760 scp->midis[scp->midi_number] = 761 midimapper_fetch_synth(scp->mapper, scp->mapper_cookie, i); 762 if (scp->midis[scp->midi_number]) { 763 if ( SYNTH_OPEN(scp->midis[scp->midi_number], scp, scp->fflags) 764 != 0 ) 765 scp->midis[scp->midi_number] = NULL; 766 else { 767 scp->midi_flags[scp->midi_number] = 768 SYNTH_QUERY(scp->midis[scp->midi_number]); 769 scp->midi_number++; 770 } 771 } 772 } 773 774 timer_setvals(scp, 60, 100); 775 776 timer_start(scp); 777 timer_stop(scp); 778 /* 779 * actually, if we're in rdonly mode, we should start the timer 780 */ 781 /* 782 * TODO: Handle recording now 783 */ 784 785 scp->out_water = MIDIQ_SIZE(scp->out_q) / 2; 786 787 scp->busy = 1; 788 mtx_unlock(&scp->seq_lock); 789 790 SEQ_DEBUG(2,printf("seq_open: opened, mode %s.\n", 791 scp->music ? "music" : "sequencer")); 792 SEQ_DEBUG(2,printf("Sequencer %d %p opened maxunits %d midi_number %d:\n", scp->unit, scp, scp->maxunits, scp->midi_number)); 793 for (i=0;i<scp->midi_number;i++) 794 SEQ_DEBUG(3,printf(" midi %d %p\n", i, scp->midis[i])); 795 796 return 0; 797} 798 799/* 800 * seq_close 801 */ 802int 803seq_close(struct cdev *i_dev, int flags, int mode, struct thread *td) 804{ 805 int i; 806 struct seq_softc *scp = i_dev->si_drv1; 807 int ret; 808 809 if (scp == NULL) 810 return ENXIO; 811 812 SEQ_DEBUG(2,printf("seq_close: unit %d.\n", scp->unit)); 813 814 mtx_lock(&scp->seq_lock); 815 816 ret = ENXIO; 817 if (scp->busy == 0) 818 goto err; 819 820 seq_reset(scp); 821 seq_sync(scp); 822 823 for (i = 0 ; i < scp->midi_number; i++) 824 if (scp->midis[i]) 825 SYNTH_CLOSE(scp->midis[i]); 826 827 midimapper_close(scp->mapper, scp->mapper_cookie); 828 829 timer_stop(scp); 830 831 scp->busy = 0; 832 ret = 0; 833 834err: 835 SEQ_DEBUG(3,printf("seq_close: closed ret = %d.\n", ret)); 836 mtx_unlock(&scp->seq_lock); 837 return ret; 838} 839 840int 841seq_read(struct cdev *i_dev, struct uio *uio, int ioflag) 842{ 843 int retval, used; 844 struct seq_softc *scp = i_dev->si_drv1; 845#define SEQ_RSIZE 32 846 u_char buf[SEQ_RSIZE]; 847 848 if (scp == NULL) 849 return ENXIO; 850 851 SEQ_DEBUG(7,printf("seq_read: unit %d, resid %d.\n", 852 scp->unit, uio->uio_resid)); 853 854 mtx_lock(&scp->seq_lock); 855 if ((scp->fflags & FREAD) == 0) { 856 SEQ_DEBUG(2,printf("seq_read: unit %d is not for reading.\n", 857 scp->unit)); 858 retval = EIO; 859 goto err1; 860 } 861 862 /* 863 * Begin recording. 864 */ 865 /* 866 * if ((scp->flags & SEQ_F_READING) == 0) 867 */ 868 /* 869 * TODO, start recording if not alread 870 */ 871 872 /* 873 * I think the semantics are to return as soon 874 * as possible. 875 * Second thought, it doens't seem like midimoutain 876 * expects that at all. 877 * TODO: Look up in some sort of spec 878 */ 879 880 while (uio->uio_resid > 0) { 881 while (MIDIQ_EMPTY(scp->in_q)) { 882 retval = EWOULDBLOCK; 883 /* 884 * I wish I knew which one to care about 885 */ 886 887 if (scp->fflags & O_NONBLOCK) 888 goto err1; 889 if (ioflag & O_NONBLOCK) 890 goto err1; 891 892 retval = cv_wait_sig(&scp->in_cv, &scp->seq_lock); 893 if (retval == EINTR) 894 goto err1; 895 } 896 897 used = MIN(MIDIQ_LEN(scp->in_q), uio->uio_resid); 898 used = MIN(used, SEQ_RSIZE); 899 900 SEQ_DEBUG(8,printf("midiread: uiomove cc=%d\n", used)); 901 MIDIQ_DEQ(scp->in_q, buf, used); 902 retval = uiomove(buf, used, uio); 903 if (retval) 904 goto err1; 905 } 906 907 retval = 0; 908err1: 909 mtx_unlock(&scp->seq_lock); 910 SEQ_DEBUG(6,printf("seq_read: ret %d, resid %d.\n", 911 retval, uio->uio_resid)); 912 913 return retval; 914} 915 916int 917seq_write(struct cdev *i_dev, struct uio *uio, int ioflag) 918{ 919 u_char event[EV_SZ], newevent[EV_SZ], ev_code; 920 struct seq_softc *scp = i_dev->si_drv1; 921 int retval; 922 int used; 923 924 SEQ_DEBUG(7,printf("seq_write: unit %d, resid %d.\n", 925 scp->unit, uio->uio_resid)); 926 927 if (scp == NULL) 928 return ENXIO; 929 930 mtx_lock(&scp->seq_lock); 931 932 if ((scp->fflags & FWRITE) == 0) { 933 SEQ_DEBUG(2,printf("seq_write: unit %d is not for writing.\n", 934 scp->unit)); 935 retval = EIO; 936 goto err0; 937 } 938 939 while (uio->uio_resid > 0) { 940 while (MIDIQ_AVAIL(scp->out_q) == 0) { 941 retval = EWOULDBLOCK; 942 if (scp->fflags & O_NONBLOCK) 943 goto err0; 944 if (ioflag & O_NONBLOCK) 945 goto err0; 946 SEQ_DEBUG(8,printf("seq_write cvwait\n")); 947 948 scp->playing = 1; 949 cv_broadcast(&scp->out_cv); 950 cv_broadcast(&scp->state_cv); 951 952 retval = cv_wait_sig(&scp->out_cv, &scp->seq_lock); 953 /* 954 * We slept, maybe things have changed since last 955 * dying check 956 */ 957 if (retval == EINTR) 958 goto err0; 959#if 0 960 /* 961 * Useless test 962 */ 963 if (scp != i_dev->si_drv1) 964 retval = ENXIO; 965#endif 966 } 967 968 used = MIN(uio->uio_resid, 4); 969 970 SEQ_DEBUG(8,printf("seqout: resid %d len %jd avail %jd\n", 971 uio->uio_resid, (intmax_t)MIDIQ_LEN(scp->out_q), 972 (intmax_t)MIDIQ_AVAIL(scp->out_q))); 973 974 if (used != 4) { 975 retval = ENXIO; 976 goto err0; 977 } 978 979 retval = uiomove(event, used, uio); 980 if (retval) 981 goto err0; 982 983 ev_code = event[0]; 984 SEQ_DEBUG(8,printf("seq_write: unit %d, event %s.\n", 985 scp->unit, midi_cmdname(ev_code, cmdtab_seqevent))); 986 987 /* Have a look at the event code. */ 988 if (ev_code == SEQ_FULLSIZE) { 989 990 /* 991 * TODO: restore code for SEQ_FULLSIZE 992 */ 993#if 0 994 /* A long event, these are the patches/samples for a synthesizer. */ 995 midiunit = *(u_short *)&event[2]; 996 mtx_lock(&sd->seq_lock); 997 ret = lookup_mididev(scp, midiunit, LOOKUP_OPEN, &md); 998 mtx_unlock(&sd->seq_lock); 999 if (ret != 0) 1000 return (ret); 1001 1002 SEQ_DEBUG(printf("seq_write: loading a patch to the unit %d.\n", midiunit)); 1003 1004 ret = md->synth.loadpatch(md, *(short *)&event[0], buf, p + 4, count, 0); 1005 return (ret); 1006#else 1007 /* 1008 * For now, just flush the darn buffer 1009 */ 1010 SEQ_DEBUG(2,printf("seq_write: SEQ_FULLSIZE flusing buffer.\n")); 1011 while (uio->uio_resid > 0) { 1012 retval = uiomove(event, EV_SZ, uio); 1013 if (retval) 1014 goto err0; 1015 1016 } 1017 retval = 0; 1018 goto err0; 1019#endif 1020 } 1021 1022 retval = EINVAL; 1023 if (ev_code >= 128) { 1024 1025 /* 1026 * Some sort of an extended event. The size is eight bytes. 1027 * scoop extra info. 1028 */ 1029 if (scp->music && ev_code == SEQ_EXTENDED) { 1030 SEQ_DEBUG(2,printf("seq_write: invalid level two event %x.\n", ev_code)); 1031 goto err0; 1032 } 1033 if (uiomove((caddr_t)&event[4], 4, uio)) { 1034 SEQ_DEBUG(2,printf("seq_write: user memory mangled?\n")); 1035 goto err0; 1036 } 1037 } else { 1038 /* 1039 * Size four event. 1040 */ 1041 if (scp->music) { 1042 SEQ_DEBUG(2,printf("seq_write: four byte event in music mode.\n")); 1043 goto err0; 1044 } 1045 } 1046 if (ev_code == SEQ_MIDIPUTC) { 1047 /* 1048 * TODO: event[2] is unit number to receive char. Range check 1049 * it 1050 */ 1051 } 1052 1053 if (scp->music) { 1054#ifdef not_ever_ever 1055 if (event[0] == EV_TIMING && 1056 (event[1] == TMR_START || event[1] == TMR_STOP) ) { 1057 /* 1058 * For now, try to make midimoutain work by 1059 * forcing these events to be processed immediatly 1060 */ 1061 seq_processevent(scp, event); 1062 } 1063 else 1064 MIDIQ_ENQ(scp->out_q, event, EV_SZ); 1065#else 1066 MIDIQ_ENQ(scp->out_q, event, EV_SZ); 1067#endif 1068 } else { 1069 if (seq_convertold(event, newevent) > 0) 1070 MIDIQ_ENQ(scp->out_q, newevent, EV_SZ); 1071#if 0 1072 else 1073 goto err0; 1074#endif 1075 } 1076 1077 } 1078 1079 scp->playing = 1; 1080 cv_broadcast(&scp->state_cv); 1081 cv_broadcast(&scp->out_cv); 1082 1083 retval = 0; 1084 1085err0: 1086 SEQ_DEBUG(6,printf("seq_write done: leftover buffer length %d retval %d\n", 1087 uio->uio_resid, retval)); 1088 mtx_unlock(&scp->seq_lock); 1089 return retval; 1090} 1091 1092int 1093seq_ioctl(struct cdev *i_dev, u_long cmd, caddr_t arg, int mode, struct thread *td) 1094{ 1095 int midiunit, ret, tmp; 1096 struct seq_softc *scp = i_dev->si_drv1; 1097 struct synth_info *synthinfo; 1098 struct midi_info *midiinfo; 1099 u_char event[EV_SZ]; 1100 u_char newevent[EV_SZ]; 1101 1102 kobj_t md; 1103 /* 1104 * struct snd_size *sndsize; 1105 */ 1106 1107 if (scp == NULL) 1108 return ENXIO; 1109 1110 SEQ_DEBUG(6,printf("seq_ioctl: unit %d, cmd %s.\n", 1111 scp->unit, midi_cmdname(cmd, cmdtab_seqioctl))); 1112 1113 ret = 0; 1114 1115 switch (cmd) { 1116 case SNDCTL_SEQ_GETTIME: 1117 /* 1118 * ioctl needed by libtse 1119 */ 1120 mtx_lock(&scp->seq_lock); 1121 *(int *)arg = timer_now(scp); 1122 mtx_unlock(&scp->seq_lock); 1123 SEQ_DEBUG(6,printf("seq_ioctl: gettime %d.\n", *(int *)arg)); 1124 ret = 0; 1125 break; 1126 case SNDCTL_TMR_METRONOME: 1127 /* fallthrough */ 1128 case SNDCTL_TMR_SOURCE: 1129 /* 1130 * Not implemented 1131 */ 1132 ret = 0; 1133 break; 1134 case SNDCTL_TMR_TEMPO: 1135 event[1] = TMR_TEMPO; 1136 event[4] = *(int *)arg & 0xFF; 1137 event[5] = (*(int *)arg >> 8) & 0xFF; 1138 event[6] = (*(int *)arg >> 16) & 0xFF; 1139 event[7] = (*(int *)arg >> 24) & 0xFF; 1140 goto timerevent; 1141 case SNDCTL_TMR_TIMEBASE: 1142 event[1] = TMR_TIMERBASE; 1143 event[4] = *(int *)arg & 0xFF; 1144 event[5] = (*(int *)arg >> 8) & 0xFF; 1145 event[6] = (*(int *)arg >> 16) & 0xFF; 1146 event[7] = (*(int *)arg >> 24) & 0xFF; 1147 goto timerevent; 1148 case SNDCTL_TMR_START: 1149 event[1] = TMR_START; 1150 goto timerevent; 1151 case SNDCTL_TMR_STOP: 1152 event[1] = TMR_STOP; 1153 goto timerevent; 1154 case SNDCTL_TMR_CONTINUE: 1155 event[1] = TMR_CONTINUE; 1156 timerevent: 1157 event[0] = EV_TIMING; 1158 mtx_lock(&scp->seq_lock); 1159 if (!scp->music) { 1160 ret = EINVAL; 1161 mtx_unlock(&scp->seq_lock); 1162 break; 1163 } 1164 seq_processevent(scp, event); 1165 mtx_unlock(&scp->seq_lock); 1166 break; 1167 case SNDCTL_TMR_SELECT: 1168 SEQ_DEBUG(2,printf("seq_ioctl: SNDCTL_TMR_SELECT not supported\n")); 1169 ret = EINVAL; 1170 break; 1171 case SNDCTL_SEQ_SYNC: 1172 if (mode == O_RDONLY) { 1173 ret = 0; 1174 break; 1175 } 1176 mtx_lock(&scp->seq_lock); 1177 ret = seq_sync(scp); 1178 mtx_unlock(&scp->seq_lock); 1179 break; 1180 case SNDCTL_SEQ_PANIC: 1181 /* fallthrough */ 1182 case SNDCTL_SEQ_RESET: 1183 /* 1184 * SNDCTL_SEQ_PANIC == SNDCTL_SEQ_RESET 1185 */ 1186 mtx_lock(&scp->seq_lock); 1187 seq_reset(scp); 1188 mtx_unlock(&scp->seq_lock); 1189 ret = 0; 1190 break; 1191 case SNDCTL_SEQ_TESTMIDI: 1192 mtx_lock(&scp->seq_lock); 1193 /* 1194 * TODO: SNDCTL_SEQ_TESTMIDI now means "can I write to the 1195 * device?". 1196 */ 1197 mtx_unlock(&scp->seq_lock); 1198 break; 1199#if 0 1200 case SNDCTL_SEQ_GETINCOUNT: 1201 if (mode == O_WRONLY) 1202 *(int *)arg = 0; 1203 else { 1204 mtx_lock(&scp->seq_lock); 1205 *(int *)arg = scp->in_q.rl; 1206 mtx_unlock(&scp->seq_lock); 1207 SEQ_DEBUG(printf("seq_ioctl: incount %d.\n", *(int *)arg)); 1208 } 1209 ret = 0; 1210 break; 1211 case SNDCTL_SEQ_GETOUTCOUNT: 1212 if (mode == O_RDONLY) 1213 *(int *)arg = 0; 1214 else { 1215 mtx_lock(&scp->seq_lock); 1216 *(int *)arg = scp->out_q.fl; 1217 mtx_unlock(&scp->seq_lock); 1218 SEQ_DEBUG(printf("seq_ioctl: outcount %d.\n", *(int *)arg)); 1219 } 1220 ret = 0; 1221 break; 1222#endif 1223 case SNDCTL_SEQ_CTRLRATE: 1224 if (*(int *)arg != 0) { 1225 ret = EINVAL; 1226 break; 1227 } 1228 mtx_lock(&scp->seq_lock); 1229 *(int *)arg = scp->timerbase; 1230 mtx_unlock(&scp->seq_lock); 1231 SEQ_DEBUG(3,printf("seq_ioctl: ctrlrate %d.\n", *(int *)arg)); 1232 ret = 0; 1233 break; 1234 /* 1235 * TODO: ioctl SNDCTL_SEQ_RESETSAMPLES 1236 */ 1237#if 0 1238 case SNDCTL_SEQ_RESETSAMPLES: 1239 mtx_lock(&scp->seq_lock); 1240 ret = lookup_mididev(scp, *(int *)arg, LOOKUP_OPEN, &md); 1241 mtx_unlock(&scp->seq_lock); 1242 if (ret != 0) 1243 break; 1244 ret = midi_ioctl(MIDIMKDEV(major(i_dev), *(int *)arg, SND_DEV_MIDIN), cmd, arg, mode, td); 1245 break; 1246#endif 1247 case SNDCTL_SEQ_NRSYNTHS: 1248 mtx_lock(&scp->seq_lock); 1249 *(int *)arg = scp->midi_number; 1250 mtx_unlock(&scp->seq_lock); 1251 SEQ_DEBUG(3,printf("seq_ioctl: synths %d.\n", *(int *)arg)); 1252 ret = 0; 1253 break; 1254 case SNDCTL_SEQ_NRMIDIS: 1255 mtx_lock(&scp->seq_lock); 1256 if (scp->music) 1257 *(int *)arg = 0; 1258 else { 1259 /* 1260 * TODO: count the numbder of devices that can WRITERAW 1261 */ 1262 *(int *)arg = scp->midi_number; 1263 } 1264 mtx_unlock(&scp->seq_lock); 1265 SEQ_DEBUG(3,printf("seq_ioctl: midis %d.\n", *(int *)arg)); 1266 ret = 0; 1267 break; 1268 /* 1269 * TODO: ioctl SNDCTL_SYNTH_MEMAVL 1270 */ 1271#if 0 1272 case SNDCTL_SYNTH_MEMAVL: 1273 mtx_lock(&scp->seq_lock); 1274 ret = lookup_mididev(scp, *(int *)arg, LOOKUP_OPEN, &md); 1275 mtx_unlock(&scp->seq_lock); 1276 if (ret != 0) 1277 break; 1278 ret = midi_ioctl(MIDIMKDEV(major(i_dev), *(int *)arg, SND_DEV_MIDIN), cmd, arg, mode, td); 1279 break; 1280#endif 1281 case SNDCTL_SEQ_OUTOFBAND: 1282 for (ret = 0; ret < EV_SZ; ret++) 1283 event[ret] = (u_char)arg[0]; 1284 1285 mtx_lock(&scp->seq_lock); 1286 if (scp->music) 1287 ret = seq_processevent(scp, event); 1288 else { 1289 if (seq_convertold(event, newevent) > 0) 1290 ret = seq_processevent(scp, newevent); 1291 else ret = EINVAL; 1292 } 1293 mtx_unlock(&scp->seq_lock); 1294 break; 1295 case SNDCTL_SYNTH_INFO: 1296 synthinfo = (struct synth_info *)arg; 1297 midiunit = synthinfo->device; 1298 mtx_lock(&scp->seq_lock); 1299 if (seq_fetch_mid(scp, midiunit, &md) == 0) { 1300 bzero(synthinfo, sizeof(*synthinfo)); 1301 synthinfo->name[0] = 'f'; 1302 synthinfo->name[1] = 'a'; 1303 synthinfo->name[2] = 'k'; 1304 synthinfo->name[3] = 'e'; 1305 synthinfo->name[4] = 's'; 1306 synthinfo->name[5] = 'y'; 1307 synthinfo->name[6] = 'n'; 1308 synthinfo->name[7] = 't'; 1309 synthinfo->name[8] = 'h'; 1310 synthinfo->device = midiunit; 1311 synthinfo->synth_type = SYNTH_TYPE_MIDI; 1312 synthinfo->capabilities = scp->midi_flags[midiunit]; 1313 ret = 0; 1314 } else 1315 ret = EINVAL; 1316 mtx_unlock(&scp->seq_lock); 1317 break; 1318 case SNDCTL_MIDI_INFO: 1319 midiinfo = (struct midi_info *)arg; 1320 midiunit = midiinfo->device; 1321 mtx_lock(&scp->seq_lock); 1322 if (seq_fetch_mid(scp, midiunit, &md) == 0) { 1323 bzero(midiinfo, sizeof(*midiinfo)); 1324 midiinfo->name[0] = 'f'; 1325 midiinfo->name[1] = 'a'; 1326 midiinfo->name[2] = 'k'; 1327 midiinfo->name[3] = 'e'; 1328 midiinfo->name[4] = 'm'; 1329 midiinfo->name[5] = 'i'; 1330 midiinfo->name[6] = 'd'; 1331 midiinfo->name[7] = 'i'; 1332 midiinfo->device = midiunit; 1333 midiinfo->capabilities = scp->midi_flags[midiunit]; 1334 /* 1335 * TODO: What devtype? 1336 */ 1337 midiinfo->dev_type = 0x01; 1338 ret = 0; 1339 } else 1340 ret = EINVAL; 1341 mtx_unlock(&scp->seq_lock); 1342 break; 1343 case SNDCTL_SEQ_THRESHOLD: 1344 mtx_lock(&scp->seq_lock); 1345 RANGE(*(int *)arg, 1, MIDIQ_SIZE(scp->out_q) - 1); 1346 scp->out_water = *(int *)arg; 1347 mtx_unlock(&scp->seq_lock); 1348 SEQ_DEBUG(3,printf("seq_ioctl: water %d.\n", *(int *)arg)); 1349 ret = 0; 1350 break; 1351 case SNDCTL_MIDI_PRETIME: 1352 tmp = *(int *)arg; 1353 if (tmp < 0) 1354 tmp = 0; 1355 mtx_lock(&scp->seq_lock); 1356 scp->pre_event_timeout = (hz * tmp) / 10; 1357 *(int *)arg = scp->pre_event_timeout; 1358 mtx_unlock(&scp->seq_lock); 1359 SEQ_DEBUG(3,printf("seq_ioctl: pretime %d.\n", *(int *)arg)); 1360 ret = 0; 1361 break; 1362 case SNDCTL_FM_4OP_ENABLE: 1363 case SNDCTL_PMGR_IFACE: 1364 case SNDCTL_PMGR_ACCESS: 1365 /* 1366 * Patch manager and fm are ded, ded, ded. 1367 */ 1368 /* fallthrough */ 1369 default: 1370 /* 1371 * TODO: Consider ioctl default case. 1372 * Old code used to 1373 * if ((scp->fflags & O_ACCMODE) == FREAD) { 1374 * ret = EIO; 1375 * break; 1376 * } 1377 * Then pass on the ioctl to device 0 1378 */ 1379 SEQ_DEBUG(2,printf("seq_ioctl: unsupported IOCTL %ld.\n", cmd)); 1380 ret = EINVAL; 1381 break; 1382 } 1383 1384 return ret; 1385} 1386 1387int 1388seq_poll(struct cdev *i_dev, int events, struct thread *td) 1389{ 1390 int ret, lim; 1391 struct seq_softc *scp = i_dev->si_drv1; 1392 1393 SEQ_DEBUG(3, printf("seq_poll: unit %d.\n", scp->unit)); 1394 printf("seq_poll: unit %d.\n", scp->unit); 1395 1396 mtx_lock(&scp->seq_lock); 1397 1398 ret = 0; 1399 1400 /* Look up the apropriate queue and select it. */ 1401 if ((events & (POLLOUT | POLLWRNORM)) != 0) { 1402 /* Start playing. */ 1403 scp->playing = 1; 1404 cv_broadcast(&scp->state_cv); 1405 cv_broadcast(&scp->out_cv); 1406 1407 lim = scp->out_water; 1408 1409 if (MIDIQ_AVAIL(scp->out_q) < lim) 1410 /* No enough space, record select. */ 1411 selrecord(td, &scp->out_sel); 1412 else 1413 /* We can write now. */ 1414 ret |= events & (POLLOUT | POLLWRNORM); 1415 } 1416 1417 if ((events & (POLLIN | POLLRDNORM)) != 0) { 1418 /* TODO: Start recording. */ 1419 1420 /* Find out the boundary. */ 1421 lim = 1; 1422 if (MIDIQ_LEN(scp->in_q) < lim) 1423 /* No data ready, record select. */ 1424 selrecord(td, &scp->in_sel); 1425 else 1426 /* We can read now. */ 1427 ret |= events & (POLLIN | POLLRDNORM); 1428 } 1429 1430 mtx_unlock(&scp->seq_lock); 1431 1432 return (ret); 1433} 1434#if 0 1435static void 1436sein_qtr(void *p, void /* mididev_info */ *md) 1437{ 1438 struct seq_softc *scp; 1439 1440 scp = (struct seq_softc *)p; 1441 1442 mtx_lock(&scp->seq_lock); 1443 1444 /* Restart playing if we have the data to output. */ 1445 if (scp->queueout_pending) 1446 seq_callback(scp, SEQ_CB_START | SEQ_CB_WR); 1447 /* Check the midi device if we are reading. */ 1448 if ((scp->flags & SEQ_F_READING) != 0) 1449 seq_midiinput(scp, md); 1450 1451 mtx_unlock(&scp->seq_lock); 1452} 1453#endif 1454/* 1455 * seq_convertold 1456 * Was the old playevent. Use this to convert and old 1457 * style /dev/sequencer event to a /dev/music event 1458 */ 1459static int 1460seq_convertold(u_char *event, u_char *out) 1461{ 1462 int used; 1463 u_char dev, chn, note, vel; 1464 1465 out[0] = out[1] = out[2] = out[3] = out[4] = out[5] = out[6] = out[7] = 0; 1466 1467 dev = 0; 1468 chn = event[1]; 1469 note = event[2]; 1470 vel = event[3]; 1471 1472 used = 0; 1473 1474restart: 1475 /* 1476 * TODO: Debug statement 1477 */ 1478 switch(event[0]) { 1479 case EV_TIMING: 1480 case EV_CHN_VOICE: 1481 case EV_CHN_COMMON: 1482case EV_SYSEX: 1483case EV_SEQ_LOCAL: 1484 out[0] = event[0]; 1485 out[1] = event[1]; 1486 out[2] = event[2]; 1487 out[3] = event[3]; 1488 out[4] = event[4]; 1489 out[5] = event[5]; 1490 out[6] = event[6]; 1491 out[7] = event[7]; 1492 used += 8; 1493 break; 1494 case SEQ_NOTEOFF: 1495 out[0] = EV_CHN_VOICE; 1496 out[1] = dev; 1497 out[2] = MIDI_NOTEOFF; 1498 out[3] = chn; 1499 out[4] = note; 1500 out[5] = 255; 1501 used += 4; 1502 break; 1503 1504 case SEQ_NOTEON: 1505 out[0] = EV_CHN_VOICE; 1506 out[1] = dev; 1507 out[2] = MIDI_NOTEON; 1508 out[3] = chn; 1509 out[4] = note; 1510 out[5] = vel; 1511 used += 4; 1512 break; 1513 1514 /* 1515 * wait delay = (event[2] << 16) + (event[3] << 8) + event[4] 1516 */ 1517 1518 case SEQ_PGMCHANGE: 1519 out[0] = EV_CHN_COMMON; 1520 out[1] = dev; 1521 out[2] = MIDI_PGM_CHANGE; 1522 out[3] = chn; 1523 out[4] = note; 1524 out[5] = vel; 1525 used += 4; 1526 break; 1527/* 1528 out[0] = EV_TIMING; 1529 out[1] = dev; 1530 out[2] = MIDI_PGM_CHANGE; 1531 out[3] = chn; 1532 out[4] = note; 1533 out[5] = vel; 1534 SEQ_DEBUG(4,printf("seq_playevent: synctimer\n")); 1535 break; 1536*/ 1537 1538 case SEQ_MIDIPUTC: 1539 SEQ_DEBUG(4,printf("seq_playevent: put data 0x%02x, unit %d.\n", 1540 event[1], event[2])); 1541 /* 1542 * Pass through to the midi device. 1543 * device = event[2] 1544 * data = event[1] 1545 */ 1546 out[0] = SEQ_MIDIPUTC; 1547 out[1] = dev; 1548 out[2] = chn; 1549 used += 4; 1550 break; 1551#ifdef notyet 1552 case SEQ_ECHO: 1553 /* 1554 * This isn't handled here yet because I don't know if I can 1555 * just use four bytes events. There might be consequences 1556 * in the _read routing 1557 */ 1558 if (seq_copytoinput(scp, event, 4) == EAGAIN) { 1559 ret = QUEUEFULL; 1560 break; 1561 } 1562 ret = MORE; 1563 break; 1564#endif 1565 case SEQ_EXTENDED: 1566 switch (event[1]) { 1567 case SEQ_NOTEOFF: 1568 case SEQ_NOTEON: 1569 case SEQ_PGMCHANGE: 1570 event++; 1571 used = 4; 1572 goto restart; 1573 break; 1574 case SEQ_AFTERTOUCH: 1575 /* 1576 * SYNTH_AFTERTOUCH(md, event[3], event[4]) 1577 */ 1578 case SEQ_BALANCE: 1579 /* 1580 * SYNTH_PANNING(md, event[3], (char)event[4]) 1581 */ 1582 case SEQ_CONTROLLER: 1583 /* 1584 * SYNTH_CONTROLLER(md, event[3], event[4], *(short *)&event[5]) 1585 */ 1586 case SEQ_VOLMODE: 1587 /* 1588 * SYNTH_VOLUMEMETHOD(md, event[3]) 1589 */ 1590 default: 1591 SEQ_DEBUG(2,printf("seq_convertold: SEQ_EXTENDED type %d" 1592 "not handled\n", event[1])); 1593 break; 1594 } 1595 break; 1596 case SEQ_WAIT: 1597 out[0] = EV_TIMING; 1598 out[1] = TMR_WAIT_REL; 1599 out[4] = event[2]; 1600 out[5] = event[3]; 1601 out[6] = event[4]; 1602 1603 SEQ_DEBUG(5,printf("SEQ_WAIT %d", event[2] + (event[3] << 8) + (event[4] << 24))); 1604 1605 used+= 4; 1606 break; 1607 1608 case SEQ_ECHO: 1609 case SEQ_SYNCTIMER: 1610 case SEQ_PRIVATE: 1611 default: 1612 SEQ_DEBUG(2,printf("seq_convertold: event type %d not handled %d %d %d\n", event[0], event[1], event[2], event[3])); 1613 break; 1614 } 1615 return used; 1616} 1617 1618/* 1619 * Writting to the sequencer buffer never blocks and drops 1620 * input which cannot be queued 1621 */ 1622void 1623seq_copytoinput(struct seq_softc *scp, u_char *event, int len) 1624{ 1625 1626 mtx_assert(&scp->seq_lock, MA_OWNED); 1627 1628 if (MIDIQ_AVAIL(scp->in_q) < len) { 1629 /* 1630 * ENOROOM? EINPUTDROPPED? ETOUGHLUCK? 1631 */ 1632 SEQ_DEBUG(2,printf("seq_copytoinput: queue full\n")); 1633 } else { 1634 MIDIQ_ENQ(scp->in_q, event, len); 1635 selwakeup(&scp->in_sel); 1636 cv_broadcast(&scp->in_cv); 1637 } 1638 1639} 1640 1641static int 1642seq_chnvoice(struct seq_softc *scp, kobj_t md, u_char *event) 1643{ 1644 int ret, voice; 1645 u_char cmd, chn, note, parm; 1646 1647 ret = 0; 1648 cmd = event[2]; 1649 chn = event[3]; 1650 note = event[4]; 1651 parm = event[5]; 1652 1653 mtx_assert(&scp->seq_lock, MA_OWNED); 1654 1655 SEQ_DEBUG(5,printf("seq_chnvoice: unit %d, dev %d, cmd %s," 1656 " chn %d, note %d, parm %d.\n", scp->unit, event[1], 1657 midi_cmdname(cmd, cmdtab_seqcv), chn, note, parm)); 1658 1659 voice = SYNTH_ALLOC(md, chn, note); 1660 1661 mtx_unlock(&scp->seq_lock); 1662 1663 switch (cmd) { 1664 case MIDI_NOTEON: 1665 if (note < 128 || note == 255) { 1666#if 0 1667 if (scp->music && chn == 9) { 1668 /* 1669 * This channel is a percussion. The note number is the 1670 * patch number. 1671 */ 1672 /* 1673 mtx_unlock(&scp->seq_lock); 1674 if (SYNTH_SETINSTR(md, voice, 128 + note) == EAGAIN) { 1675 mtx_lock(&scp->seq_lock); 1676 return (QUEUEFULL); 1677 } 1678 mtx_lock(&scp->seq_lock); 1679 */ 1680 note = 60; /* Middle C. */ 1681 } 1682#endif 1683 if (scp->music) { 1684 /* 1685 mtx_unlock(&scp->seq_lock); 1686 if (SYNTH_SETUPVOICE(md, voice, chn) == EAGAIN) { 1687 mtx_lock(&scp->seq_lock); 1688 return (QUEUEFULL); 1689 } 1690 mtx_lock(&scp->seq_lock); 1691 */ 1692 } 1693 SYNTH_STARTNOTE(md, voice, note, parm); 1694 } 1695 break; 1696 case MIDI_NOTEOFF: 1697 SYNTH_KILLNOTE(md, voice, note, parm); 1698 break; 1699 case MIDI_KEY_PRESSURE: 1700 SYNTH_AFTERTOUCH(md, voice, parm); 1701 break; 1702 default: 1703 ret = 1; 1704 SEQ_DEBUG(2,printf("seq_chnvoice event type %d not handled\n", event[1])); 1705 break; 1706 } 1707 1708 mtx_lock(&scp->seq_lock); 1709 return ret; 1710} 1711 1712static int 1713seq_chncommon(struct seq_softc *scp, kobj_t md, u_char *event) 1714{ 1715 int ret; 1716 u_short w14; 1717 u_char cmd, chn, p1; 1718 1719 ret = 0; 1720 cmd = event[2]; 1721 chn = event[3]; 1722 p1 = event[4]; 1723 w14 = *(u_short *)&event[6]; 1724 1725 SEQ_DEBUG(5,printf("seq_chncommon: unit %d, dev %d, cmd %s, chn %d," 1726 " p1 %d, w14 %d.\n", scp->unit, event[1], 1727 midi_cmdname(cmd, cmdtab_seqccmn), chn, p1, w14)); 1728 mtx_unlock(&scp->seq_lock); 1729 switch (cmd) { 1730 case MIDI_PGM_CHANGE: 1731 SEQ_DEBUG(4,printf("seq_chncommon pgmchn chn %d pg %d\n", 1732 chn, p1)); 1733 SYNTH_SETINSTR(md, chn, p1); 1734 break; 1735 case MIDI_CTL_CHANGE: 1736 SEQ_DEBUG(4,printf("seq_chncommon ctlch chn %d pg %d %d\n", 1737 chn, p1, w14)); 1738 SYNTH_CONTROLLER(md, chn, p1, w14); 1739 break; 1740 case MIDI_PITCH_BEND: 1741 if (scp->music) { 1742 /* 1743 * TODO: MIDI_PITCH_BEND 1744 */ 1745#if 0 1746 mtx_lock(&md->synth.vc_mtx); 1747 md->synth.chn_info[chn].bender_value = w14; 1748 if (md->midiunit >= 0) { 1749 /* Handle all of the notes playing on this channel. */ 1750 key = ((int)chn << 8); 1751 for (i = 0 ; i < md->synth.alloc.max_voice ; i++) 1752 if ((md->synth.alloc.map[i] & 0xff00) == key) { 1753 mtx_unlock(&md->synth.vc_mtx); 1754 mtx_unlock(&scp->seq_lock); 1755 if (md->synth.bender(md, i, w14) == EAGAIN) { 1756 mtx_lock(&scp->seq_lock); 1757 return (QUEUEFULL); 1758 } 1759 mtx_lock(&scp->seq_lock); 1760 } 1761 } else { 1762 mtx_unlock(&md->synth.vc_mtx); 1763 mtx_unlock(&scp->seq_lock); 1764 if (md->synth.bender(md, chn, w14) == EAGAIN) { 1765 mtx_lock(&scp->seq_lock); 1766 return (QUEUEFULL); 1767 } 1768 mtx_lock(&scp->seq_lock); 1769 } 1770#endif 1771 } else 1772 SYNTH_BENDER(md, chn, w14); 1773 break; 1774 default: 1775 ret = 1; 1776 SEQ_DEBUG(2,printf("seq_chncommon event type %d not handled.\n", event[1])); 1777 break; 1778 1779 } 1780 mtx_lock(&scp->seq_lock); 1781 return ret; 1782} 1783 1784static int 1785seq_timing(struct seq_softc *scp, u_char *event) 1786{ 1787 int param; 1788 int ret; 1789 1790 ret = 0; 1791 param = event[4] + (event[5] << 8) + 1792 (event[6] << 16) + (event[7] << 24); 1793 1794 SEQ_DEBUG(5,printf("seq_timing: unit %d, cmd %d, param %d.\n", 1795 scp->unit, event[1], param)); 1796 switch (event[1]) { 1797 case TMR_WAIT_REL: 1798 timer_wait(scp, param, 0); 1799 break; 1800 case TMR_WAIT_ABS: 1801 timer_wait(scp, param, 1); 1802 break; 1803 case TMR_START: 1804 timer_start(scp); 1805 cv_broadcast(&scp->reset_cv); 1806 break; 1807 case TMR_STOP: 1808 timer_stop(scp); 1809 /* 1810 * The following cv_broadcast isn't needed since we only 1811 * wait for 0->1 transitions. It probably won't hurt 1812 */ 1813 cv_broadcast(&scp->reset_cv); 1814 break; 1815 case TMR_CONTINUE: 1816 timer_continue(scp); 1817 cv_broadcast(&scp->reset_cv); 1818 break; 1819 case TMR_TEMPO: 1820 if (param < 8) 1821 param = 8; 1822 if (param > 360) 1823 param = 360; 1824 SEQ_DEBUG(4,printf("Timer set tempo %d\n", param)); 1825 timer_setvals(scp, param, scp->timerbase); 1826 break; 1827 case TMR_TIMERBASE: 1828 if (param < 1) 1829 param = 1; 1830 if (param > 1000) 1831 param = 1000; 1832 SEQ_DEBUG(4,printf("Timer set timerbase %d\n", param)); 1833 timer_setvals(scp, scp->tempo, param); 1834 break; 1835 case TMR_ECHO: 1836 /* 1837 * TODO: Consider making 4-byte events for /dev/sequencer 1838 * PRO: Maybe needed by legacy apps 1839 * CON: soundcard.h has been warning for a while many years 1840 * to expect 8 byte events. 1841 */ 1842#if 0 1843 if (scp->music) 1844 seq_copytoinput(scp, event, 8); 1845 else { 1846 param = (param << 8 | SEQ_ECHO); 1847 seq_copytoinput(scp, (u_char *)¶m, 4); 1848 } 1849#else 1850 seq_copytoinput(scp, event, 8); 1851#endif 1852 break; 1853 default: 1854 SEQ_DEBUG(2,printf("seq_timing event type %d not handled.\n", event[1])); 1855 ret = 1; 1856 break; 1857 } 1858 return ret; 1859} 1860 1861static int 1862seq_local(struct seq_softc *scp, u_char *event) 1863{ 1864 int ret; 1865 1866 ret = 0; 1867 mtx_assert(&scp->seq_lock, MA_OWNED); 1868 1869 SEQ_DEBUG(5,printf("seq_local: unit %d, cmd %d\n", scp->unit, event[1])); 1870 switch (event[1]) { 1871 default: 1872 printf("seq_local event type %d not handled\n", event[1]); 1873 ret = 1; 1874 break; 1875 } 1876 return ret; 1877} 1878 1879static int 1880seq_sysex(struct seq_softc *scp, kobj_t md, u_char *event) 1881{ 1882 int i, l; 1883 1884 mtx_assert(&scp->seq_lock, MA_OWNED); 1885 SEQ_DEBUG(5,printf("seq_sysex: unit %d device %d\n", scp->unit, event[1])); 1886 l = 0; 1887 for (i = 0 ; i < 6 && event[i + 2] != 0xff ; i++) 1888 l = i + 1; 1889 if (l > 0) { 1890 mtx_unlock(&scp->seq_lock); 1891 if (SYNTH_SENDSYSEX(md, &event[2], l) == EAGAIN) { 1892 mtx_lock(&scp->seq_lock); 1893 return 1; 1894 } 1895 mtx_lock(&scp->seq_lock); 1896 } 1897 return 0; 1898} 1899 1900/* 1901 * Reset no longer closes the raw devices nor seq_sync's 1902 * Callers are IOCTL and seq_close 1903 */ 1904static void 1905seq_reset(struct seq_softc *scp) 1906{ 1907 int chn, i; 1908 kobj_t m; 1909 1910 mtx_assert(&scp->seq_lock, MA_OWNED); 1911 1912 SEQ_DEBUG(5,printf("seq_reset: unit %d.\n", scp->unit)); 1913 1914 /* 1915 * Stop reading and writing. 1916 */ 1917 1918 /* scp->recording = 0; */ 1919 scp->playing = 0; 1920 cv_broadcast(&scp->state_cv); 1921 cv_broadcast(&scp->out_cv); 1922 cv_broadcast(&scp->reset_cv); 1923 1924 /* 1925 * For now, don't reset the timers. 1926 */ 1927 MIDIQ_CLEAR(scp->in_q); 1928 MIDIQ_CLEAR(scp->out_q); 1929 1930 for (i = 0; i < scp->midi_number; i++) { 1931 m = scp->midis[i]; 1932 mtx_unlock(&scp->seq_lock); 1933 SYNTH_RESET(m); 1934 for (chn = 0 ; chn < 16 ; chn++) { 1935 SYNTH_CONTROLLER(m, chn, 123, 0) ; 1936 SYNTH_CONTROLLER(m, chn, 121, 0); 1937 SYNTH_BENDER(m, chn, 1 << 13); 1938 } 1939 mtx_lock(&scp->seq_lock); 1940 } 1941} 1942 1943/* 1944 * seq_sync 1945 * *really* flush the output queue 1946 * flush the event queue, then flush the synthsisers. 1947 * Callers are IOCTL and close 1948 */ 1949 1950#define SEQ_SYNC_TIMEOUT 8 1951static int 1952seq_sync(struct seq_softc *scp) 1953{ 1954 int i, rl, sync[16], done; 1955 1956 mtx_assert(&scp->seq_lock, MA_OWNED); 1957 1958 SEQ_DEBUG(4,printf("seq_sync: unit %d.\n", scp->unit)); 1959 1960 /* 1961 * Wait until output queue is empty. Check every so often to see if 1962 * the queue is moving along. If it isn't just abort. 1963 */ 1964 while (!MIDIQ_EMPTY(scp->out_q)) { 1965 1966 if (!scp->playing) { 1967 scp->playing = 1; 1968 cv_broadcast(&scp->state_cv); 1969 cv_broadcast(&scp->out_cv); 1970 } 1971 1972 rl = MIDIQ_LEN(scp->out_q); 1973 1974 i = cv_timedwait_sig(&scp->out_cv, 1975 &scp->seq_lock, SEQ_SYNC_TIMEOUT * hz); 1976 1977 if (i == EINTR || i == ERESTART) { 1978 if (i == EINTR) { 1979 /* 1980 * XXX: I don't know why we stop playing 1981 */ 1982 scp->playing = 0; 1983 cv_broadcast(&scp->out_cv); 1984 } 1985 return i; 1986 } 1987 1988 if (i == EWOULDBLOCK && rl == MIDIQ_LEN(scp->out_q) && 1989 scp->waiting == 0) { 1990 /* 1991 * A queue seems to be stuck up. Give up and clear queues. 1992 */ 1993 MIDIQ_CLEAR(scp->out_q); 1994 scp->playing = 0; 1995 cv_broadcast(&scp->state_cv); 1996 cv_broadcast(&scp->out_cv); 1997 cv_broadcast(&scp->reset_cv); 1998 1999 /* 2000 * TODO: Consider if the raw devices need to be flushed 2001 */ 2002 2003 SEQ_DEBUG(1,printf("seq_sync queue stuck, aborting\n")); 2004 2005 return i; 2006 } 2007 } 2008 2009 scp->playing = 0; 2010 /* 2011 * Since syncing a midi device might block, unlock scp->seq_lock. 2012 */ 2013 2014 mtx_unlock(&scp->seq_lock); 2015 for(i = 0 ; i < scp->midi_number; i++) 2016 sync[i] = 1; 2017 2018 do { 2019 done = 1; 2020 for (i = 0 ; i < scp->midi_number; i++) 2021 if (sync[i]) { 2022 if (SYNTH_INSYNC(scp->midis[i]) == 0) 2023 sync[i] = 0; 2024 else 2025 done = 0; 2026 } 2027 2028 if (!done) 2029 DELAY(5000); 2030 2031 } while (!done); 2032 2033 mtx_lock(&scp->seq_lock); 2034 return 0; 2035} 2036 2037char * 2038midi_cmdname(int cmd, midi_cmdtab *tab) 2039{ 2040 while (tab->name != NULL) { 2041 if (cmd == tab->cmd) 2042 return (tab->name); 2043 tab++; 2044 } 2045 2046 return ("unknown"); 2047} 2048