sequencer.c revision 1.15.8.4
1 /* $NetBSD: sequencer.c,v 1.15.8.4 2002/02/11 20:09:37 jdolecek Exp $ */ 2 3 /* 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Lennart Augustsson (augustss (at) netbsd.org). 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: sequencer.c,v 1.15.8.4 2002/02/11 20:09:37 jdolecek Exp $"); 41 42 #include "sequencer.h" 43 44 #include <sys/param.h> 45 #include <sys/ioctl.h> 46 #include <sys/fcntl.h> 47 #include <sys/vnode.h> 48 #include <sys/select.h> 49 #include <sys/poll.h> 50 #include <sys/malloc.h> 51 #include <sys/proc.h> 52 #include <sys/systm.h> 53 #include <sys/syslog.h> 54 #include <sys/kernel.h> 55 #include <sys/signalvar.h> 56 #include <sys/conf.h> 57 #include <sys/audioio.h> 58 #include <sys/midiio.h> 59 #include <sys/device.h> 60 61 #include <dev/midi_if.h> 62 #include <dev/midivar.h> 63 #include <dev/sequencervar.h> 64 65 #define ADDTIMEVAL(a, b) ( \ 66 (a)->tv_sec += (b)->tv_sec, \ 67 (a)->tv_usec += (b)->tv_usec, \ 68 (a)->tv_usec > 1000000 ? ((a)->tv_sec++, (a)->tv_usec -= 1000000) : 0\ 69 ) 70 71 #define SUBTIMEVAL(a, b) ( \ 72 (a)->tv_sec -= (b)->tv_sec, \ 73 (a)->tv_usec -= (b)->tv_usec, \ 74 (a)->tv_usec < 0 ? ((a)->tv_sec--, (a)->tv_usec += 1000000) : 0\ 75 ) 76 77 #ifdef AUDIO_DEBUG 78 #define DPRINTF(x) if (sequencerdebug) printf x 79 #define DPRINTFN(n,x) if (sequencerdebug >= (n)) printf x 80 int sequencerdebug = 0; 81 #else 82 #define DPRINTF(x) 83 #define DPRINTFN(n,x) 84 #endif 85 86 #define SEQ_CMD(b) ((b)->arr[0]) 87 88 #define SEQ_EDEV(b) ((b)->arr[1]) 89 #define SEQ_ECMD(b) ((b)->arr[2]) 90 #define SEQ_ECHAN(b) ((b)->arr[3]) 91 #define SEQ_ENOTE(b) ((b)->arr[4]) 92 #define SEQ_EPARM(b) ((b)->arr[5]) 93 94 #define SEQ_EP1(b) ((b)->arr[4]) 95 #define SEQ_EP2(b) ((b)->arr[5]) 96 97 #define SEQ_XCMD(b) ((b)->arr[1]) 98 #define SEQ_XDEV(b) ((b)->arr[2]) 99 #define SEQ_XCHAN(b) ((b)->arr[3]) 100 #define SEQ_XNOTE(b) ((b)->arr[4]) 101 #define SEQ_XVEL(b) ((b)->arr[5]) 102 103 #define SEQ_TCMD(b) ((b)->arr[1]) 104 #define SEQ_TPARM(b) ((b)->arr[4]) 105 106 #define SEQ_NOTE_MAX 128 107 #define SEQ_NOTE_XXX 255 108 #define SEQ_VEL_OFF 0 109 110 #define RECALC_TICK(t) ((t)->tick = 60 * 1000000L / ((t)->tempo * (t)->timebase)) 111 112 struct sequencer_softc seqdevs[NSEQUENCER]; 113 114 void sequencerattach __P((int)); 115 void seq_reset __P((struct sequencer_softc *)); 116 int seq_do_command __P((struct sequencer_softc *, seq_event_rec *)); 117 int seq_do_extcommand __P((struct sequencer_softc *, seq_event_rec *)); 118 int seq_do_chnvoice __P((struct sequencer_softc *, seq_event_rec *)); 119 int seq_do_chncommon __P((struct sequencer_softc *, seq_event_rec *)); 120 int seq_do_timing __P((struct sequencer_softc *, seq_event_rec *)); 121 int seq_do_local __P((struct sequencer_softc *, seq_event_rec *)); 122 int seq_do_sysex __P((struct sequencer_softc *, seq_event_rec *)); 123 int seq_do_fullsize __P((struct sequencer_softc *, seq_event_rec *, 124 struct uio *)); 125 int seq_timer __P((struct sequencer_softc *, int, int, seq_event_rec *)); 126 static int seq_input_event __P((struct sequencer_softc *, seq_event_rec *)); 127 int seq_drain __P((struct sequencer_softc *)); 128 void seq_startoutput __P((struct sequencer_softc *)); 129 void seq_timeout __P((void *)); 130 int seq_to_new __P((seq_event_rec *, struct uio *)); 131 static int seq_sleep_timo(int *, char *, int); 132 static int seq_sleep(int *, char *); 133 static void seq_wakeup(int *); 134 135 struct midi_softc; 136 int midiseq_out __P((struct midi_dev *, u_char *, u_int, int)); 137 struct midi_dev *midiseq_open __P((int, int)); 138 void midiseq_close __P((struct midi_dev *)); 139 void midiseq_reset __P((struct midi_dev *)); 140 int midiseq_noteon __P((struct midi_dev *, int, int, int)); 141 int midiseq_noteoff __P((struct midi_dev *, int, int, int)); 142 int midiseq_keypressure __P((struct midi_dev *, int, int, int)); 143 int midiseq_pgmchange __P((struct midi_dev *, int, int)); 144 int midiseq_chnpressure __P((struct midi_dev *, int, int)); 145 int midiseq_ctlchange __P((struct midi_dev *, int, int, int)); 146 int midiseq_pitchbend __P((struct midi_dev *, int, int)); 147 int midiseq_loadpatch __P((struct midi_dev *, struct sysex_info *, 148 struct uio *)); 149 int midiseq_putc __P((struct midi_dev *, int)); 150 void midiseq_in __P((struct midi_dev *, u_char *, int)); 151 152 void 153 sequencerattach(n) 154 int n; 155 { 156 157 for (n = 0; n < NSEQUENCER; n++) 158 callout_init(&seqdevs[n].sc_callout); 159 } 160 161 int 162 sequenceropen(dev, flags, ifmt, p) 163 dev_t dev; 164 int flags, ifmt; 165 struct proc *p; 166 { 167 int unit = SEQUENCERUNIT(dev); 168 struct sequencer_softc *sc; 169 struct midi_dev *md; 170 int nmidi; 171 172 DPRINTF(("sequenceropen\n")); 173 174 if (unit >= NSEQUENCER) 175 return (ENXIO); 176 sc = &seqdevs[unit]; 177 if (sc->isopen) 178 return EBUSY; 179 if (SEQ_IS_OLD(unit)) 180 sc->mode = SEQ_OLD; 181 else 182 sc->mode = SEQ_NEW; 183 sc->isopen++; 184 sc->flags = flags & (FREAD|FWRITE); 185 sc->rchan = 0; 186 sc->wchan = 0; 187 sc->pbus = 0; 188 sc->async = 0; 189 sc->input_stamp = ~0; 190 191 sc->nmidi = 0; 192 nmidi = midi_unit_count(); 193 194 sc->devs = malloc(nmidi * sizeof(struct midi_dev *), 195 M_DEVBUF, M_WAITOK); 196 for (unit = 0; unit < nmidi; unit++) { 197 md = midiseq_open(unit, flags); 198 if (md) { 199 sc->devs[sc->nmidi++] = md; 200 md->seq = sc; 201 } 202 } 203 204 sc->timer.timebase = 100; 205 sc->timer.tempo = 60; 206 sc->doingsysex = 0; 207 RECALC_TICK(&sc->timer); 208 sc->timer.last = 0; 209 microtime(&sc->timer.start); 210 211 SEQ_QINIT(&sc->inq); 212 SEQ_QINIT(&sc->outq); 213 sc->lowat = SEQ_MAXQ / 2; 214 215 seq_reset(sc); 216 217 DPRINTF(("sequenceropen: mode=%d, nmidi=%d\n", sc->mode, sc->nmidi)); 218 return 0; 219 } 220 221 static int 222 seq_sleep_timo(chan, label, timo) 223 int *chan; 224 char *label; 225 int timo; 226 { 227 int st; 228 229 if (!label) 230 label = "seq"; 231 232 DPRINTFN(5, ("seq_sleep_timo: %p %s %d\n", chan, label, timo)); 233 *chan = 1; 234 st = tsleep(chan, PWAIT | PCATCH, label, timo); 235 *chan = 0; 236 #ifdef MIDI_DEBUG 237 if (st != 0) 238 printf("seq_sleep: %d\n", st); 239 #endif 240 return st; 241 } 242 243 static int 244 seq_sleep(chan, label) 245 int *chan; 246 char *label; 247 { 248 return seq_sleep_timo(chan, label, 0); 249 } 250 251 static void 252 seq_wakeup(chan) 253 int *chan; 254 { 255 if (*chan) { 256 DPRINTFN(5, ("seq_wakeup: %p\n", chan)); 257 wakeup(chan); 258 *chan = 0; 259 } 260 } 261 262 int 263 seq_drain(sc) 264 struct sequencer_softc *sc; 265 { 266 int error; 267 268 DPRINTFN(3, ("seq_drain: %p, len=%d\n", sc, SEQ_QLEN(&sc->outq))); 269 seq_startoutput(sc); 270 error = 0; 271 while(!SEQ_QEMPTY(&sc->outq) && !error) 272 error = seq_sleep_timo(&sc->wchan, "seq_dr", 60*hz); 273 return (error); 274 } 275 276 void 277 seq_timeout(addr) 278 void *addr; 279 { 280 struct sequencer_softc *sc = addr; 281 DPRINTFN(4, ("seq_timeout: %p\n", sc)); 282 sc->timeout = 0; 283 seq_startoutput(sc); 284 if (SEQ_QLEN(&sc->outq) < sc->lowat) { 285 seq_wakeup(&sc->wchan); 286 selnotify(&sc->wsel, 0); 287 if (sc->async) 288 psignal(sc->async, SIGIO); 289 } 290 291 } 292 293 void 294 seq_startoutput(sc) 295 struct sequencer_softc *sc; 296 { 297 struct sequencer_queue *q = &sc->outq; 298 seq_event_rec cmd; 299 300 if (sc->timeout) 301 return; 302 DPRINTFN(4, ("seq_startoutput: %p, len=%d\n", sc, SEQ_QLEN(q))); 303 while(!SEQ_QEMPTY(q) && !sc->timeout) { 304 SEQ_QGET(q, cmd); 305 seq_do_command(sc, &cmd); 306 } 307 } 308 309 int 310 sequencerclose(dev, flags, ifmt, p) 311 dev_t dev; 312 int flags, ifmt; 313 struct proc *p; 314 { 315 struct sequencer_softc *sc = &seqdevs[SEQUENCERUNIT(dev)]; 316 int n, s; 317 318 DPRINTF(("sequencerclose: %p\n", sc)); 319 320 seq_drain(sc); 321 s = splaudio(); 322 if (sc->timeout) { 323 callout_stop(&sc->sc_callout); 324 sc->timeout = 0; 325 } 326 splx(s); 327 328 for (n = 0; n < sc->nmidi; n++) 329 midiseq_close(sc->devs[n]); 330 free(sc->devs, M_DEVBUF); 331 sc->isopen = 0; 332 return (0); 333 } 334 335 static int 336 seq_input_event(sc, cmd) 337 struct sequencer_softc *sc; 338 seq_event_rec *cmd; 339 { 340 struct sequencer_queue *q = &sc->inq; 341 342 DPRINTFN(2, ("seq_input_event: %02x %02x %02x %02x %02x %02x %02x %02x\n", 343 cmd->arr[0], cmd->arr[1], cmd->arr[2], cmd->arr[3], 344 cmd->arr[4], cmd->arr[5], cmd->arr[6], cmd->arr[7])); 345 if (SEQ_QFULL(q)) 346 return (ENOMEM); 347 SEQ_QPUT(q, *cmd); 348 seq_wakeup(&sc->rchan); 349 selnotify(&sc->rsel, 0); 350 if (sc->async) 351 psignal(sc->async, SIGIO); 352 return 0; 353 } 354 355 void 356 seq_event_intr(addr, iev) 357 void *addr; 358 seq_event_rec *iev; 359 { 360 struct sequencer_softc *sc = addr; 361 union { 362 u_int32_t l; 363 u_int8_t b[4]; 364 } u; 365 u_long t; 366 struct timeval now; 367 seq_event_rec ev; 368 369 microtime(&now); 370 SUBTIMEVAL(&now, &sc->timer.start); 371 t = now.tv_sec * 1000000 + now.tv_usec; 372 t /= sc->timer.tick; 373 if (t != sc->input_stamp) { 374 ev.arr[0] = SEQ_TIMING; 375 ev.arr[1] = TMR_WAIT_ABS; 376 ev.arr[2] = 0; 377 ev.arr[3] = 0; 378 u.l = t; 379 ev.arr[4] = u.b[0]; 380 ev.arr[5] = u.b[1]; 381 ev.arr[6] = u.b[2]; 382 ev.arr[7] = u.b[3]; 383 seq_input_event(sc, &ev); 384 sc->input_stamp = t; 385 } 386 seq_input_event(sc, iev); 387 } 388 389 int 390 sequencerread(dev, uio, ioflag) 391 dev_t dev; 392 struct uio *uio; 393 int ioflag; 394 { 395 struct sequencer_softc *sc = &seqdevs[SEQUENCERUNIT(dev)]; 396 struct sequencer_queue *q = &sc->inq; 397 seq_event_rec ev; 398 int error, s; 399 400 DPRINTFN(20, ("sequencerread: %p, count=%d, ioflag=%x\n", 401 sc, (int) uio->uio_resid, ioflag)); 402 403 if (sc->mode == SEQ_OLD) { 404 DPRINTFN(-1,("sequencerread: old read\n")); 405 return (EINVAL); /* XXX unimplemented */ 406 } 407 408 error = 0; 409 while (SEQ_QEMPTY(q)) { 410 if (ioflag & IO_NDELAY) 411 return EWOULDBLOCK; 412 else { 413 error = seq_sleep(&sc->rchan, "seq rd"); 414 if (error) 415 return error; 416 } 417 } 418 s = splaudio(); 419 while (uio->uio_resid >= sizeof ev && !error && !SEQ_QEMPTY(q)) { 420 SEQ_QGET(q, ev); 421 error = uiomove(&ev, sizeof ev, uio); 422 } 423 splx(s); 424 return error; 425 } 426 427 int 428 sequencerwrite(dev, uio, ioflag) 429 dev_t dev; 430 struct uio *uio; 431 int ioflag; 432 { 433 struct sequencer_softc *sc = &seqdevs[SEQUENCERUNIT(dev)]; 434 struct sequencer_queue *q = &sc->outq; 435 int error; 436 seq_event_rec cmdbuf; 437 int size; 438 439 DPRINTFN(2, ("sequencerwrite: %p, count=%d\n", sc, (int) uio->uio_resid)); 440 441 error = 0; 442 size = sc->mode == SEQ_NEW ? sizeof cmdbuf : SEQOLD_CMDSIZE; 443 while (uio->uio_resid >= size) { 444 error = uiomove(&cmdbuf, size, uio); 445 if (error) 446 break; 447 if (sc->mode == SEQ_OLD) 448 if (seq_to_new(&cmdbuf, uio)) 449 continue; 450 if (SEQ_CMD(&cmdbuf) == SEQ_FULLSIZE) { 451 /* We do it like OSS does, asynchronously */ 452 error = seq_do_fullsize(sc, &cmdbuf, uio); 453 if (error) 454 break; 455 continue; 456 } 457 while (SEQ_QFULL(q)) { 458 seq_startoutput(sc); 459 if (SEQ_QFULL(q)) { 460 if (ioflag & IO_NDELAY) 461 return EWOULDBLOCK; 462 error = seq_sleep(&sc->wchan, "seq_wr"); 463 if (error) 464 return error; 465 } 466 } 467 SEQ_QPUT(q, cmdbuf); 468 } 469 seq_startoutput(sc); 470 471 #ifdef SEQUENCER_DEBUG 472 if (error) 473 DPRINTFN(2, ("sequencerwrite: error=%d\n", error)); 474 #endif 475 return error; 476 } 477 478 int 479 sequencerioctl(dev, cmd, addr, flag, p) 480 dev_t dev; 481 u_long cmd; 482 caddr_t addr; 483 int flag; 484 struct proc *p; 485 { 486 struct sequencer_softc *sc = &seqdevs[SEQUENCERUNIT(dev)]; 487 struct synth_info *si; 488 struct midi_dev *md; 489 int devno; 490 int error; 491 int t; 492 493 DPRINTFN(2, ("sequencerioctl: %p cmd=0x%08lx\n", sc, cmd)); 494 495 error = 0; 496 switch (cmd) { 497 case FIONBIO: 498 /* All handled in the upper FS layer. */ 499 break; 500 501 case FIOASYNC: 502 if (*(int *)addr) { 503 if (sc->async) 504 return EBUSY; 505 sc->async = p; 506 DPRINTF(("sequencer_ioctl: FIOASYNC %p\n", p)); 507 } else 508 sc->async = 0; 509 break; 510 511 case SEQUENCER_RESET: 512 seq_reset(sc); 513 break; 514 515 case SEQUENCER_PANIC: 516 seq_reset(sc); 517 /* Do more? OSS doesn't */ 518 break; 519 520 case SEQUENCER_SYNC: 521 if (sc->flags == FREAD) 522 return 0; 523 seq_drain(sc); 524 error = 0; 525 break; 526 527 case SEQUENCER_INFO: 528 si = (struct synth_info*)addr; 529 devno = si->device; 530 if (devno < 0 || devno >= sc->nmidi) 531 return EINVAL; 532 md = sc->devs[devno]; 533 strncpy(si->name, md->name, sizeof si->name); 534 si->synth_type = SYNTH_TYPE_MIDI; 535 si->synth_subtype = md->subtype; 536 si->nr_voices = md->nr_voices; 537 si->instr_bank_size = md->instr_bank_size; 538 si->capabilities = md->capabilities; 539 break; 540 541 case SEQUENCER_NRSYNTHS: 542 *(int *)addr = sc->nmidi; 543 break; 544 545 case SEQUENCER_NRMIDIS: 546 *(int *)addr = sc->nmidi; 547 break; 548 549 case SEQUENCER_OUTOFBAND: 550 DPRINTFN(3, ("sequencer_ioctl: OOB=%02x %02x %02x %02x %02x %02x %02x %02x\n", 551 *(u_char *)addr, *(u_char *)(addr+1), 552 *(u_char *)(addr+2), *(u_char *)(addr+3), 553 *(u_char *)(addr+4), *(u_char *)(addr+5), 554 *(u_char *)(addr+6), *(u_char *)(addr+7))); 555 error = seq_do_command(sc, (seq_event_rec *)addr); 556 break; 557 558 case SEQUENCER_TMR_TIMEBASE: 559 t = *(int *)addr; 560 if (t < 1) 561 t = 1; 562 if (t > 10000) 563 t = 10000; 564 sc->timer.timebase = t; 565 *(int *)addr = t; 566 RECALC_TICK(&sc->timer); 567 break; 568 569 case SEQUENCER_TMR_START: 570 error = seq_timer(sc, TMR_START, 0, 0); 571 break; 572 573 case SEQUENCER_TMR_STOP: 574 error = seq_timer(sc, TMR_STOP, 0, 0); 575 break; 576 577 case SEQUENCER_TMR_CONTINUE: 578 error = seq_timer(sc, TMR_CONTINUE, 0, 0); 579 break; 580 581 case SEQUENCER_TMR_TEMPO: 582 t = *(int *)addr; 583 if (t < 8) 584 t = 8; 585 if (t > 250) 586 t = 250; 587 sc->timer.tempo = t; 588 *(int *)addr = t; 589 RECALC_TICK(&sc->timer); 590 break; 591 592 case SEQUENCER_TMR_SOURCE: 593 *(int *)addr = SEQUENCER_TMR_INTERNAL; 594 break; 595 596 case SEQUENCER_TMR_METRONOME: 597 /* noop */ 598 break; 599 600 case SEQUENCER_THRESHOLD: 601 t = SEQ_MAXQ - *(int *)addr / sizeof (seq_event_rec); 602 if (t < 1) 603 t = 1; 604 if (t > SEQ_MAXQ) 605 t = SEQ_MAXQ; 606 sc->lowat = t; 607 break; 608 609 case SEQUENCER_CTRLRATE: 610 *(int *)addr = (sc->timer.tempo*sc->timer.timebase + 30) / 60; 611 break; 612 613 case SEQUENCER_GETTIME: 614 { 615 struct timeval now; 616 u_long t; 617 microtime(&now); 618 SUBTIMEVAL(&now, &sc->timer.start); 619 t = now.tv_sec * 1000000 + now.tv_usec; 620 t /= sc->timer.tick; 621 *(int *)addr = t; 622 break; 623 } 624 625 default: 626 DPRINTFN(-1,("sequencer_ioctl: unimpl %08lx\n", cmd)); 627 error = EINVAL; 628 break; 629 } 630 return error; 631 } 632 633 int 634 sequencerpoll(dev, events, p) 635 dev_t dev; 636 int events; 637 struct proc *p; 638 { 639 struct sequencer_softc *sc = &seqdevs[SEQUENCERUNIT(dev)]; 640 int revents = 0; 641 642 DPRINTF(("sequencerpoll: %p events=0x%x\n", sc, events)); 643 644 if (events & (POLLIN | POLLRDNORM)) 645 if (!SEQ_QEMPTY(&sc->inq)) 646 revents |= events & (POLLIN | POLLRDNORM); 647 648 if (events & (POLLOUT | POLLWRNORM)) 649 if (SEQ_QLEN(&sc->outq) < sc->lowat) 650 revents |= events & (POLLOUT | POLLWRNORM); 651 652 if (revents == 0) { 653 if (events & (POLLIN | POLLRDNORM)) 654 selrecord(p, &sc->rsel); 655 656 if (events & (POLLOUT | POLLWRNORM)) 657 selrecord(p, &sc->wsel); 658 } 659 660 return revents; 661 } 662 663 static void 664 filt_sequencerrdetach(struct knote *kn) 665 { 666 struct sequencer_softc *sc = (void *) kn->kn_hook; 667 int s; 668 669 s = splaudio(); 670 SLIST_REMOVE(&sc->rsel.si_klist, kn, knote, kn_selnext); 671 splx(s); 672 } 673 674 static int 675 filt_sequencerread(struct knote *kn, long hint) 676 { 677 struct sequencer_softc *sc = (void *) kn->kn_hook; 678 679 /* XXXLUKEM (thorpej): make sure this is correct */ 680 681 if (SEQ_QEMPTY(&sc->inq)) 682 return (0); 683 kn->kn_data = sizeof(seq_event_rec); 684 return (1); 685 } 686 687 static const struct filterops sequencerread_filtops = 688 { 1, NULL, filt_sequencerrdetach, filt_sequencerread }; 689 690 static void 691 filt_sequencerwdetach(struct knote *kn) 692 { 693 struct sequencer_softc *sc = (void *) kn->kn_hook; 694 int s; 695 696 s = splaudio(); 697 SLIST_REMOVE(&sc->wsel.si_klist, kn, knote, kn_selnext); 698 splx(s); 699 } 700 701 static int 702 filt_sequencerwrite(struct knote *kn, long hint) 703 { 704 struct sequencer_softc *sc = (void *) kn->kn_hook; 705 706 /* XXXLUKEM (thorpej): make sure this is correct */ 707 708 if (SEQ_QLEN(&sc->outq) >= sc->lowat) 709 return (0); 710 kn->kn_data = sizeof(seq_event_rec); 711 return (1); 712 } 713 714 static const struct filterops sequencerwrite_filtops = 715 { 1, NULL, filt_sequencerwdetach, filt_sequencerwrite }; 716 717 int 718 sequencerkqfilter(dev_t dev, struct knote *kn) 719 { 720 struct sequencer_softc *sc = &seqdevs[SEQUENCERUNIT(dev)]; 721 struct klist *klist; 722 int s; 723 724 switch (kn->kn_filter) { 725 case EVFILT_READ: 726 klist = &sc->rsel.si_klist; 727 kn->kn_fop = &sequencerread_filtops; 728 break; 729 730 case EVFILT_WRITE: 731 klist = &sc->wsel.si_klist; 732 kn->kn_fop = &sequencerwrite_filtops; 733 break; 734 735 default: 736 return (1); 737 } 738 739 kn->kn_hook = (void *) sc; 740 741 s = splaudio(); 742 SLIST_INSERT_HEAD(klist, kn, kn_selnext); 743 splx(s); 744 745 return (0); 746 } 747 748 void 749 seq_reset(sc) 750 struct sequencer_softc *sc; 751 { 752 int i, chn; 753 struct midi_dev *md; 754 755 for (i = 0; i < sc->nmidi; i++) { 756 md = sc->devs[i]; 757 midiseq_reset(md); 758 for (chn = 0; chn < MAXCHAN; chn++) { 759 midiseq_ctlchange(md, chn, MIDI_CTRL_ALLOFF, 0); 760 midiseq_ctlchange(md, chn, MIDI_CTRL_RESET, 0); 761 midiseq_pitchbend(md, chn, MIDI_BEND_NEUTRAL); 762 } 763 } 764 } 765 766 int 767 seq_do_command(sc, b) 768 struct sequencer_softc *sc; 769 seq_event_rec *b; 770 { 771 int dev; 772 773 DPRINTFN(4, ("seq_do_command: %p cmd=0x%02x\n", sc, SEQ_CMD(b))); 774 775 switch(SEQ_CMD(b)) { 776 case SEQ_LOCAL: 777 return seq_do_local(sc, b); 778 case SEQ_TIMING: 779 return seq_do_timing(sc, b); 780 case SEQ_CHN_VOICE: 781 return seq_do_chnvoice(sc, b); 782 case SEQ_CHN_COMMON: 783 return seq_do_chncommon(sc, b); 784 case SEQ_SYSEX: 785 return seq_do_sysex(sc, b); 786 /* COMPAT */ 787 case SEQOLD_MIDIPUTC: 788 dev = b->arr[2]; 789 if (dev < 0 || dev >= sc->nmidi) 790 return (ENXIO); 791 return midiseq_putc(sc->devs[dev], b->arr[1]); 792 default: 793 DPRINTFN(-1,("seq_do_command: unimpl command %02x\n", 794 SEQ_CMD(b))); 795 return (EINVAL); 796 } 797 } 798 799 int 800 seq_do_chnvoice(sc, b) 801 struct sequencer_softc *sc; 802 seq_event_rec *b; 803 { 804 int cmd, dev, chan, note, parm, voice; 805 int error; 806 struct midi_dev *md; 807 808 dev = SEQ_EDEV(b); 809 if (dev < 0 || dev >= sc->nmidi) 810 return ENXIO; 811 md = sc->devs[dev]; 812 cmd = SEQ_ECMD(b); 813 chan = SEQ_ECHAN(b); 814 note = SEQ_ENOTE(b); 815 parm = SEQ_EPARM(b); 816 DPRINTFN(2,("seq_do_chnvoice: cmd=%02x dev=%d chan=%d note=%d parm=%d\n", 817 cmd, dev, chan, note, parm)); 818 voice = chan; 819 if (cmd == MIDI_NOTEON && parm == 0) { 820 cmd = MIDI_NOTEOFF; 821 parm = MIDI_HALF_VEL; 822 } 823 switch(cmd) { 824 case MIDI_NOTEON: 825 DPRINTFN(5, ("seq_do_chnvoice: noteon %p %d %d %d\n", 826 md, voice, note, parm)); 827 error = midiseq_noteon(md, voice, note, parm); 828 break; 829 case MIDI_NOTEOFF: 830 error = midiseq_noteoff(md, voice, note, parm); 831 break; 832 case MIDI_KEY_PRESSURE: 833 error = midiseq_keypressure(md, voice, note, parm); 834 break; 835 default: 836 DPRINTFN(-1,("seq_do_chnvoice: unimpl command %02x\n", cmd)); 837 error = EINVAL; 838 break; 839 } 840 return error; 841 } 842 843 int 844 seq_do_chncommon(sc, b) 845 struct sequencer_softc *sc; 846 seq_event_rec *b; 847 { 848 int cmd, dev, chan, p1, w14; 849 int error; 850 struct midi_dev *md; 851 union { 852 int16_t s; 853 u_int8_t b[2]; 854 } u; 855 856 dev = SEQ_EDEV(b); 857 if (dev < 0 || dev >= sc->nmidi) 858 return ENXIO; 859 md = sc->devs[dev]; 860 cmd = SEQ_ECMD(b); 861 chan = SEQ_ECHAN(b); 862 p1 = SEQ_EP1(b); 863 u.b[0] = b->arr[6]; 864 u.b[1] = b->arr[7]; 865 w14 = u.s; 866 DPRINTFN(2,("seq_do_chncommon: %02x\n", cmd)); 867 868 error = 0; 869 switch(cmd) { 870 case MIDI_PGM_CHANGE: 871 error = midiseq_pgmchange(md, chan, p1); 872 break; 873 case MIDI_CTL_CHANGE: 874 if (chan > 15 || p1 > 127) 875 return 0; /* EINVAL */ 876 error = midiseq_ctlchange(md, chan, p1, w14); 877 break; 878 case MIDI_PITCH_BEND: 879 error = midiseq_pitchbend(md, chan, w14); 880 break; 881 case MIDI_CHN_PRESSURE: 882 error = midiseq_chnpressure(md, chan, p1); 883 break; 884 default: 885 DPRINTFN(-1,("seq_do_chncommon: unimpl command %02x\n", cmd)); 886 error = EINVAL; 887 break; 888 } 889 return (error); 890 } 891 892 int 893 seq_do_timing(sc, b) 894 struct sequencer_softc *sc; 895 seq_event_rec *b; 896 { 897 union { 898 int32_t i; 899 u_int8_t b[4]; 900 } u; 901 u.b[0] = b->arr[4]; 902 u.b[1] = b->arr[5]; 903 u.b[2] = b->arr[6]; 904 u.b[3] = b->arr[7]; 905 return seq_timer(sc, SEQ_TCMD(b), u.i, b); 906 } 907 908 int 909 seq_do_local(sc, b) 910 struct sequencer_softc *sc; 911 seq_event_rec *b; 912 { 913 return (EINVAL); 914 } 915 916 int 917 seq_do_sysex(sc, b) 918 struct sequencer_softc *sc; 919 seq_event_rec *b; 920 { 921 int dev, i; 922 struct midi_dev *md; 923 u_int8_t c, *buf = &b->arr[2]; 924 925 dev = SEQ_EDEV(b); 926 if (dev < 0 || dev >= sc->nmidi) 927 return (ENXIO); 928 DPRINTF(("seq_do_sysex: dev=%d\n", dev)); 929 md = sc->devs[dev]; 930 931 if (!sc->doingsysex) { 932 c = MIDI_SYSEX_START; 933 midiseq_out(md, &c, 1, 0); 934 sc->doingsysex = 1; 935 } 936 937 for (i = 0; i < 6 && buf[i] != 0xff; i++) 938 ; 939 midiseq_out(md, buf, i, 0); 940 if (i < 6 || (i > 0 && buf[i-1] == MIDI_SYSEX_END)) 941 sc->doingsysex = 0; 942 return (0); 943 } 944 945 int 946 seq_timer(sc, cmd, parm, b) 947 struct sequencer_softc *sc; 948 int cmd, parm; 949 seq_event_rec *b; 950 { 951 struct syn_timer *t = &sc->timer; 952 struct timeval when; 953 int ticks; 954 int error; 955 long long usec; 956 957 DPRINTFN(2,("seq_timer: %02x %d\n", cmd, parm)); 958 959 error = 0; 960 switch(cmd) { 961 case TMR_WAIT_REL: 962 parm += t->last; 963 /* fall into */ 964 case TMR_WAIT_ABS: 965 t->last = parm; 966 usec = (long long)parm * (long long)t->tick; /* convert to usec */ 967 when.tv_sec = usec / 1000000; 968 when.tv_usec = usec % 1000000; 969 DPRINTFN(4, ("seq_timer: parm=%d, sleep when=%ld.%06ld", parm, 970 when.tv_sec, when.tv_usec)); 971 ADDTIMEVAL(&when, &t->start); /* abstime for end */ 972 ticks = hzto(&when); 973 DPRINTFN(4, (" when+start=%ld.%06ld, tick=%d\n", 974 when.tv_sec, when.tv_usec, ticks)); 975 if (ticks > 0) { 976 #ifdef DIAGNOSTIC 977 if (ticks > 20 * hz) { 978 /* Waiting more than 20s */ 979 printf("seq_timer: funny ticks=%d, usec=%lld, parm=%d, tick=%ld\n", 980 ticks, usec, parm, t->tick); 981 } 982 #endif 983 sc->timeout = 1; 984 callout_reset(&sc->sc_callout, ticks, 985 seq_timeout, sc); 986 } 987 #ifdef SEQUENCER_DEBUG 988 else if (tick < 0) 989 DPRINTF(("seq_timer: ticks = %d\n", ticks)); 990 #endif 991 break; 992 case TMR_START: 993 microtime(&t->start); 994 t->running = 1; 995 break; 996 case TMR_STOP: 997 microtime(&t->stop); 998 t->running = 0; 999 break; 1000 case TMR_CONTINUE: 1001 microtime(&when); 1002 SUBTIMEVAL(&when, &t->stop); 1003 ADDTIMEVAL(&t->start, &when); 1004 t->running = 1; 1005 break; 1006 case TMR_TEMPO: 1007 /* parm is ticks per minute / timebase */ 1008 if (parm < 8) 1009 parm = 8; 1010 if (parm > 360) 1011 parm = 360; 1012 t->tempo = parm; 1013 RECALC_TICK(t); 1014 break; 1015 case TMR_ECHO: 1016 error = seq_input_event(sc, b); 1017 break; 1018 case TMR_RESET: 1019 t->last = 0; 1020 microtime(&t->start); 1021 break; 1022 default: 1023 DPRINTF(("seq_timer: unknown %02x\n", cmd)); 1024 error = EINVAL; 1025 break; 1026 } 1027 return (error); 1028 } 1029 1030 int 1031 seq_do_fullsize(sc, b, uio) 1032 struct sequencer_softc *sc; 1033 seq_event_rec *b; 1034 struct uio *uio; 1035 { 1036 struct sysex_info sysex; 1037 u_int dev; 1038 1039 #ifdef DIAGNOSTIC 1040 if (sizeof(seq_event_rec) != SEQ_SYSEX_HDRSIZE) { 1041 printf("seq_do_fullsize: sysex size ??\n"); 1042 return EINVAL; 1043 } 1044 #endif 1045 memcpy(&sysex, b, sizeof sysex); 1046 dev = sysex.device_no; 1047 DPRINTFN(2, ("seq_do_fullsize: fmt=%04x, dev=%d, len=%d\n", 1048 sysex.key, dev, sysex.len)); 1049 return (midiseq_loadpatch(sc->devs[dev], &sysex, uio)); 1050 } 1051 1052 /* Convert an old sequencer event to a new one. */ 1053 int 1054 seq_to_new(ev, uio) 1055 seq_event_rec *ev; 1056 struct uio *uio; 1057 { 1058 int cmd, chan, note, parm; 1059 u_int32_t delay; 1060 int error; 1061 1062 cmd = SEQ_CMD(ev); 1063 chan = ev->arr[1]; 1064 note = ev->arr[2]; 1065 parm = ev->arr[3]; 1066 DPRINTFN(3, ("seq_to_new: 0x%02x %d %d %d\n", cmd, chan, note, parm)); 1067 1068 if (cmd >= 0x80) { 1069 /* Fill the event record */ 1070 if (uio->uio_resid >= sizeof *ev - SEQOLD_CMDSIZE) { 1071 error = uiomove(&ev->arr[SEQOLD_CMDSIZE], 1072 sizeof *ev - SEQOLD_CMDSIZE, uio); 1073 if (error) 1074 return error; 1075 } else 1076 return EINVAL; 1077 } 1078 1079 switch(cmd) { 1080 case SEQOLD_NOTEOFF: 1081 note = 255; 1082 SEQ_ECMD(ev) = MIDI_NOTEOFF; 1083 goto onoff; 1084 case SEQOLD_NOTEON: 1085 SEQ_ECMD(ev) = MIDI_NOTEON; 1086 onoff: 1087 SEQ_CMD(ev) = SEQ_CHN_VOICE; 1088 SEQ_EDEV(ev) = 0; 1089 SEQ_ECHAN(ev) = chan; 1090 SEQ_ENOTE(ev) = note; 1091 SEQ_EPARM(ev) = parm; 1092 break; 1093 case SEQOLD_WAIT: 1094 delay = *(u_int32_t *)ev->arr >> 8; 1095 SEQ_CMD(ev) = SEQ_TIMING; 1096 SEQ_TCMD(ev) = TMR_WAIT_REL; 1097 *(u_int32_t *)&ev->arr[4] = delay; 1098 break; 1099 case SEQOLD_SYNCTIMER: 1100 SEQ_CMD(ev) = SEQ_TIMING; 1101 SEQ_TCMD(ev) = TMR_RESET; 1102 break; 1103 case SEQOLD_PGMCHANGE: 1104 SEQ_ECMD(ev) = MIDI_PGM_CHANGE; 1105 SEQ_CMD(ev) = SEQ_CHN_COMMON; 1106 SEQ_EDEV(ev) = 0; 1107 SEQ_ECHAN(ev) = chan; 1108 SEQ_EP1(ev) = note; 1109 break; 1110 case SEQOLD_MIDIPUTC: 1111 break; /* interpret in normal mode */ 1112 case SEQOLD_ECHO: 1113 case SEQOLD_PRIVATE: 1114 case SEQOLD_EXTENDED: 1115 default: 1116 DPRINTF(("seq_to_new: not impl 0x%02x\n", cmd)); 1117 return EINVAL; 1118 /* In case new events show up */ 1119 case SEQ_TIMING: 1120 case SEQ_CHN_VOICE: 1121 case SEQ_CHN_COMMON: 1122 case SEQ_FULLSIZE: 1123 break; 1124 } 1125 return 0; 1126 } 1127 1128 /**********************************************/ 1129 1130 void 1131 midiseq_in(md, msg, len) 1132 struct midi_dev *md; 1133 u_char *msg; 1134 int len; 1135 { 1136 int unit = md->unit; 1137 seq_event_rec ev; 1138 int status, chan; 1139 1140 DPRINTFN(2, ("midiseq_in: %p %02x %02x %02x\n", 1141 md, msg[0], msg[1], msg[2])); 1142 1143 status = MIDI_GET_STATUS(msg[0]); 1144 chan = MIDI_GET_CHAN(msg[0]); 1145 switch (status) { 1146 case MIDI_NOTEON: 1147 if (msg[2] == 0) { 1148 status = MIDI_NOTEOFF; 1149 msg[2] = MIDI_HALF_VEL; 1150 } 1151 /* fall into */ 1152 case MIDI_NOTEOFF: 1153 case MIDI_KEY_PRESSURE: 1154 SEQ_MK_CHN_VOICE(&ev, unit, status, chan, msg[1], msg[2]); 1155 break; 1156 case MIDI_CTL_CHANGE: 1157 SEQ_MK_CHN_COMMON(&ev, unit, status, chan, msg[1], 0, msg[2]); 1158 break; 1159 case MIDI_PGM_CHANGE: 1160 case MIDI_CHN_PRESSURE: 1161 SEQ_MK_CHN_COMMON(&ev, unit, status, chan, msg[1], 0, 0); 1162 break; 1163 case MIDI_PITCH_BEND: 1164 SEQ_MK_CHN_COMMON(&ev, unit, status, chan, 0, 0, 1165 (msg[1] & 0x7f) | ((msg[2] & 0x7f) << 7)); 1166 break; 1167 default: 1168 return; 1169 } 1170 seq_event_intr(md->seq, &ev); 1171 } 1172 1173 struct midi_dev * 1174 midiseq_open(unit, flags) 1175 int unit; 1176 int flags; 1177 { 1178 extern struct cfdriver midi_cd; 1179 int error; 1180 struct midi_dev *md; 1181 struct midi_softc *sc; 1182 struct midi_info mi; 1183 1184 DPRINTFN(2, ("midiseq_open: %d %d\n", unit, flags)); 1185 error = midiopen(makedev(0, unit), flags, 0, 0); 1186 if (error) 1187 return (0); 1188 sc = midi_cd.cd_devs[unit]; 1189 sc->seqopen = 1; 1190 md = malloc(sizeof *md, M_DEVBUF, M_WAITOK|M_ZERO); 1191 sc->seq_md = md; 1192 md->msc = sc; 1193 midi_getinfo(makedev(0, unit), &mi); 1194 md->unit = unit; 1195 md->name = mi.name; 1196 md->subtype = 0; 1197 md->nr_voices = 128; /* XXX */ 1198 md->instr_bank_size = 128; /* XXX */ 1199 if (mi.props & MIDI_PROP_CAN_INPUT) 1200 md->capabilities |= SYNTH_CAP_INPUT; 1201 return (md); 1202 } 1203 1204 void 1205 midiseq_close(md) 1206 struct midi_dev *md; 1207 { 1208 DPRINTFN(2, ("midiseq_close: %d\n", md->unit)); 1209 midiclose(makedev(0, md->unit), 0, 0, 0); 1210 free(md, M_DEVBUF); 1211 } 1212 1213 void 1214 midiseq_reset(md) 1215 struct midi_dev *md; 1216 { 1217 /* XXX send GM reset? */ 1218 DPRINTFN(3, ("midiseq_reset: %d\n", md->unit)); 1219 } 1220 1221 int 1222 midiseq_out(md, buf, cc, chk) 1223 struct midi_dev *md; 1224 u_char *buf; 1225 u_int cc; 1226 int chk; 1227 { 1228 DPRINTFN(5, ("midiseq_out: m=%p, unit=%d, buf[0]=0x%02x, cc=%d\n", 1229 md->msc, md->unit, buf[0], cc)); 1230 1231 /* The MIDI "status" byte does not have to be repeated. */ 1232 if (chk && md->last_cmd == buf[0]) 1233 buf++, cc--; 1234 else 1235 md->last_cmd = buf[0]; 1236 return midi_writebytes(md->unit, buf, cc); 1237 } 1238 1239 int 1240 midiseq_noteon(md, chan, note, vel) 1241 struct midi_dev *md; 1242 int chan, note, vel; 1243 { 1244 u_char buf[3]; 1245 1246 DPRINTFN(6, ("midiseq_noteon 0x%02x %d %d\n", 1247 MIDI_NOTEON | chan, note, vel)); 1248 if (chan < 0 || chan > 15 || 1249 note < 0 || note > 127) 1250 return EINVAL; 1251 if (vel < 0) vel = 0; 1252 if (vel > 127) vel = 127; 1253 buf[0] = MIDI_NOTEON | chan; 1254 buf[1] = note; 1255 buf[2] = vel; 1256 return midiseq_out(md, buf, 3, 1); 1257 } 1258 1259 int 1260 midiseq_noteoff(md, chan, note, vel) 1261 struct midi_dev *md; 1262 int chan, note, vel; 1263 { 1264 u_char buf[3]; 1265 1266 if (chan < 0 || chan > 15 || 1267 note < 0 || note > 127) 1268 return EINVAL; 1269 if (vel < 0) vel = 0; 1270 if (vel > 127) vel = 127; 1271 buf[0] = MIDI_NOTEOFF | chan; 1272 buf[1] = note; 1273 buf[2] = vel; 1274 return midiseq_out(md, buf, 3, 1); 1275 } 1276 1277 int 1278 midiseq_keypressure(md, chan, note, vel) 1279 struct midi_dev *md; 1280 int chan, note, vel; 1281 { 1282 u_char buf[3]; 1283 1284 if (chan < 0 || chan > 15 || 1285 note < 0 || note > 127) 1286 return EINVAL; 1287 if (vel < 0) vel = 0; 1288 if (vel > 127) vel = 127; 1289 buf[0] = MIDI_KEY_PRESSURE | chan; 1290 buf[1] = note; 1291 buf[2] = vel; 1292 return midiseq_out(md, buf, 3, 1); 1293 } 1294 1295 int 1296 midiseq_pgmchange(md, chan, parm) 1297 struct midi_dev *md; 1298 int chan, parm; 1299 { 1300 u_char buf[2]; 1301 1302 if (chan < 0 || chan > 15 || 1303 parm < 0 || parm > 127) 1304 return EINVAL; 1305 buf[0] = MIDI_PGM_CHANGE | chan; 1306 buf[1] = parm; 1307 return midiseq_out(md, buf, 2, 1); 1308 } 1309 1310 int 1311 midiseq_chnpressure(md, chan, parm) 1312 struct midi_dev *md; 1313 int chan, parm; 1314 { 1315 u_char buf[2]; 1316 1317 if (chan < 0 || chan > 15 || 1318 parm < 0 || parm > 127) 1319 return EINVAL; 1320 buf[0] = MIDI_CHN_PRESSURE | chan; 1321 buf[1] = parm; 1322 return midiseq_out(md, buf, 2, 1); 1323 } 1324 1325 int 1326 midiseq_ctlchange(md, chan, parm, w14) 1327 struct midi_dev *md; 1328 int chan, parm, w14; 1329 { 1330 u_char buf[3]; 1331 1332 if (chan < 0 || chan > 15 || 1333 parm < 0 || parm > 127) 1334 return EINVAL; 1335 buf[0] = MIDI_CTL_CHANGE | chan; 1336 buf[1] = parm; 1337 buf[2] = w14 & 0x7f; 1338 return midiseq_out(md, buf, 3, 1); 1339 } 1340 1341 int 1342 midiseq_pitchbend(md, chan, parm) 1343 struct midi_dev *md; 1344 int chan, parm; 1345 { 1346 u_char buf[3]; 1347 1348 if (chan < 0 || chan > 15) 1349 return EINVAL; 1350 buf[0] = MIDI_PITCH_BEND | chan; 1351 buf[1] = parm & 0x7f; 1352 buf[2] = (parm >> 7) & 0x7f; 1353 return midiseq_out(md, buf, 3, 1); 1354 } 1355 1356 int 1357 midiseq_loadpatch(md, sysex, uio) 1358 struct midi_dev *md; 1359 struct sysex_info *sysex; 1360 struct uio *uio; 1361 { 1362 u_char c, buf[128]; 1363 int i, cc, error; 1364 1365 if (sysex->key != SEQ_SYSEX_PATCH) { 1366 DPRINTFN(-1,("midiseq_loadpatch: bad patch key 0x%04x\n", 1367 sysex->key)); 1368 return (EINVAL); 1369 } 1370 if (uio->uio_resid < sysex->len) 1371 /* adjust length, should be an error */ 1372 sysex->len = uio->uio_resid; 1373 1374 DPRINTFN(2, ("midiseq_loadpatch: len=%d\n", sysex->len)); 1375 if (sysex->len == 0) 1376 return EINVAL; 1377 error = uiomove(&c, 1, uio); 1378 if (error) 1379 return error; 1380 if (c != MIDI_SYSEX_START) /* must start like this */ 1381 return EINVAL; 1382 error = midiseq_out(md, &c, 1, 0); 1383 if (error) 1384 return error; 1385 --sysex->len; 1386 while (sysex->len > 0) { 1387 cc = sysex->len; 1388 if (cc > sizeof buf) 1389 cc = sizeof buf; 1390 error = uiomove(buf, cc, uio); 1391 if (error) 1392 break; 1393 for(i = 0; i < cc && !MIDI_IS_STATUS(buf[i]); i++) 1394 ; 1395 error = midiseq_out(md, buf, i, 0); 1396 if (error) 1397 break; 1398 sysex->len -= i; 1399 if (i != cc) 1400 break; 1401 } 1402 /* Any leftover data in uio is rubbish; 1403 * the SYSEX should be one write ending in SYSEX_END. 1404 */ 1405 uio->uio_resid = 0; 1406 c = MIDI_SYSEX_END; 1407 return midiseq_out(md, &c, 1, 0); 1408 } 1409 1410 int 1411 midiseq_putc(md, data) 1412 struct midi_dev *md; 1413 int data; 1414 { 1415 u_char c = data; 1416 DPRINTFN(4,("midiseq_putc: 0x%02x\n", data)); 1417 return midiseq_out(md, &c, 1, 0); 1418 } 1419 1420 #include "midi.h" 1421 #if NMIDI == 0 1422 /* 1423 * If someone has a sequencer, but no midi devices there will 1424 * be unresolved references, so we provide little stubs. 1425 */ 1426 1427 int 1428 midi_unit_count() 1429 { 1430 return (0); 1431 } 1432 1433 int 1434 midiopen(dev, flags, ifmt, p) 1435 dev_t dev; 1436 int flags, ifmt; 1437 struct proc *p; 1438 { 1439 return (ENXIO); 1440 } 1441 1442 struct cfdriver midi_cd; 1443 1444 void 1445 midi_getinfo(dev, mi) 1446 dev_t dev; 1447 struct midi_info *mi; 1448 { 1449 } 1450 1451 int 1452 midiclose(dev, flags, ifmt, p) 1453 dev_t dev; 1454 int flags, ifmt; 1455 struct proc *p; 1456 { 1457 return (ENXIO); 1458 } 1459 1460 int 1461 midi_writebytes(unit, buf, cc) 1462 int unit; 1463 u_char *buf; 1464 int cc; 1465 { 1466 return (ENXIO); 1467 } 1468 #endif /* NMIDI == 0 */ 1469
Indexes created Tue Sep 30 20:09:53 GMT 2025