1 /* $NetBSD: sequencer.c,v 1.20 2002/09/06 13:18:43 gehenna 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@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 1.20 2002/09/06 13:18:43 gehenna 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 dev_type_open(sequenceropen); 153 dev_type_close(sequencerclose); 154 dev_type_read(sequencerread); 155 dev_type_write(sequencerwrite); 156 dev_type_ioctl(sequencerioctl); 157 dev_type_poll(sequencerpoll); 158 159 const struct cdevsw sequencer_cdevsw = { 160 sequenceropen, sequencerclose, sequencerread, sequencerwrite, 161 sequencerioctl, nostop, notty, sequencerpoll, nommap, 162 }; 163 164 void 165 sequencerattach(n) 166 int n; 167 { 168 169 for (n = 0; n < NSEQUENCER; n++) 170 callout_init(&seqdevs[n].sc_callout); 171 } 172 173 int 174 sequenceropen(dev, flags, ifmt, p) 175 dev_t dev; 176 int flags, ifmt; 177 struct proc *p; 178 { 179 int unit = SEQUENCERUNIT(dev); 180 struct sequencer_softc *sc; 181 struct midi_dev *md; 182 int nmidi; 183 184 DPRINTF(("sequenceropen\n")); 185 186 if (unit >= NSEQUENCER) 187 return (ENXIO); 188 sc = &seqdevs[unit]; 189 if (sc->isopen) 190 return EBUSY; 191 if (SEQ_IS_OLD(unit)) 192 sc->mode = SEQ_OLD; 193 else 194 sc->mode = SEQ_NEW; 195 sc->isopen++; 196 sc->flags = flags & (FREAD|FWRITE); 197 sc->rchan = 0; 198 sc->wchan = 0; 199 sc->pbus = 0; 200 sc->async = 0; 201 sc->input_stamp = ~0; 202 203 sc->nmidi = 0; 204 nmidi = midi_unit_count(); 205 206 sc->devs = malloc(nmidi * sizeof(struct midi_dev *), 207 M_DEVBUF, M_WAITOK); 208 for (unit = 0; unit < nmidi; unit++) { 209 md = midiseq_open(unit, flags); 210 if (md) { 211 sc->devs[sc->nmidi++] = md; 212 md->seq = sc; 213 } 214 } 215 216 sc->timer.timebase = 100; 217 sc->timer.tempo = 60; 218 sc->doingsysex = 0; 219 RECALC_TICK(&sc->timer); 220 sc->timer.last = 0; 221 microtime(&sc->timer.start); 222 223 SEQ_QINIT(&sc->inq); 224 SEQ_QINIT(&sc->outq); 225 sc->lowat = SEQ_MAXQ / 2; 226 227 seq_reset(sc); 228 229 DPRINTF(("sequenceropen: mode=%d, nmidi=%d\n", sc->mode, sc->nmidi)); 230 return 0; 231 } 232 233 static int 234 seq_sleep_timo(chan, label, timo) 235 int *chan; 236 char *label; 237 int timo; 238 { 239 int st; 240 241 if (!label) 242 label = "seq"; 243 244 DPRINTFN(5, ("seq_sleep_timo: %p %s %d\n", chan, label, timo)); 245 *chan = 1; 246 st = tsleep(chan, PWAIT | PCATCH, label, timo); 247 *chan = 0; 248 #ifdef MIDI_DEBUG 249 if (st != 0) 250 printf("seq_sleep: %d\n", st); 251 #endif 252 return st; 253 } 254 255 static int 256 seq_sleep(chan, label) 257 int *chan; 258 char *label; 259 { 260 return seq_sleep_timo(chan, label, 0); 261 } 262 263 static void 264 seq_wakeup(chan) 265 int *chan; 266 { 267 if (*chan) { 268 DPRINTFN(5, ("seq_wakeup: %p\n", chan)); 269 wakeup(chan); 270 *chan = 0; 271 } 272 } 273 274 int 275 seq_drain(sc) 276 struct sequencer_softc *sc; 277 { 278 int error; 279 280 DPRINTFN(3, ("seq_drain: %p, len=%d\n", sc, SEQ_QLEN(&sc->outq))); 281 seq_startoutput(sc); 282 error = 0; 283 while(!SEQ_QEMPTY(&sc->outq) && !error) 284 error = seq_sleep_timo(&sc->wchan, "seq_dr", 60*hz); 285 return (error); 286 } 287 288 void 289 seq_timeout(addr) 290 void *addr; 291 { 292 struct sequencer_softc *sc = addr; 293 DPRINTFN(4, ("seq_timeout: %p\n", sc)); 294 sc->timeout = 0; 295 seq_startoutput(sc); 296 if (SEQ_QLEN(&sc->outq) < sc->lowat) { 297 seq_wakeup(&sc->wchan); 298 selwakeup(&sc->wsel); 299 if (sc->async) 300 psignal(sc->async, SIGIO); 301 } 302 303 } 304 305 void 306 seq_startoutput(sc) 307 struct sequencer_softc *sc; 308 { 309 struct sequencer_queue *q = &sc->outq; 310 seq_event_rec cmd; 311 312 if (sc->timeout) 313 return; 314 DPRINTFN(4, ("seq_startoutput: %p, len=%d\n", sc, SEQ_QLEN(q))); 315 while(!SEQ_QEMPTY(q) && !sc->timeout) { 316 SEQ_QGET(q, cmd); 317 seq_do_command(sc, &cmd); 318 } 319 } 320 321 int 322 sequencerclose(dev, flags, ifmt, p) 323 dev_t dev; 324 int flags, ifmt; 325 struct proc *p; 326 { 327 struct sequencer_softc *sc = &seqdevs[SEQUENCERUNIT(dev)]; 328 int n, s; 329 330 DPRINTF(("sequencerclose: %p\n", sc)); 331 332 seq_drain(sc); 333 s = splaudio(); 334 if (sc->timeout) { 335 callout_stop(&sc->sc_callout); 336 sc->timeout = 0; 337 } 338 splx(s); 339 340 for (n = 0; n < sc->nmidi; n++) 341 midiseq_close(sc->devs[n]); 342 free(sc->devs, M_DEVBUF); 343 sc->isopen = 0; 344 return (0); 345 } 346 347 static int 348 seq_input_event(sc, cmd) 349 struct sequencer_softc *sc; 350 seq_event_rec *cmd; 351 { 352 struct sequencer_queue *q = &sc->inq; 353 354 DPRINTFN(2, ("seq_input_event: %02x %02x %02x %02x %02x %02x %02x %02x\n", 355 cmd->arr[0], cmd->arr[1], cmd->arr[2], cmd->arr[3], 356 cmd->arr[4], cmd->arr[5], cmd->arr[6], cmd->arr[7])); 357 if (SEQ_QFULL(q)) 358 return (ENOMEM); 359 SEQ_QPUT(q, *cmd); 360 seq_wakeup(&sc->rchan); 361 selwakeup(&sc->rsel); 362 if (sc->async) 363 psignal(sc->async, SIGIO); 364 return 0; 365 } 366 367 void 368 seq_event_intr(addr, iev) 369 void *addr; 370 seq_event_rec *iev; 371 { 372 struct sequencer_softc *sc = addr; 373 union { 374 u_int32_t l; 375 u_int8_t b[4]; 376 } u; 377 u_long t; 378 struct timeval now; 379 seq_event_rec ev; 380 381 microtime(&now); 382 SUBTIMEVAL(&now, &sc->timer.start); 383 t = now.tv_sec * 1000000 + now.tv_usec; 384 t /= sc->timer.tick; 385 if (t != sc->input_stamp) { 386 ev.arr[0] = SEQ_TIMING; 387 ev.arr[1] = TMR_WAIT_ABS; 388 ev.arr[2] = 0; 389 ev.arr[3] = 0; 390 u.l = t; 391 ev.arr[4] = u.b[0]; 392 ev.arr[5] = u.b[1]; 393 ev.arr[6] = u.b[2]; 394 ev.arr[7] = u.b[3]; 395 seq_input_event(sc, &ev); 396 sc->input_stamp = t; 397 } 398 seq_input_event(sc, iev); 399 } 400 401 int 402 sequencerread(dev, uio, ioflag) 403 dev_t dev; 404 struct uio *uio; 405 int ioflag; 406 { 407 struct sequencer_softc *sc = &seqdevs[SEQUENCERUNIT(dev)]; 408 struct sequencer_queue *q = &sc->inq; 409 seq_event_rec ev; 410 int error, s; 411 412 DPRINTFN(20, ("sequencerread: %p, count=%d, ioflag=%x\n", 413 sc, (int) uio->uio_resid, ioflag)); 414 415 if (sc->mode == SEQ_OLD) { 416 DPRINTFN(-1,("sequencerread: old read\n")); 417 return (EINVAL); /* XXX unimplemented */ 418 } 419 420 error = 0; 421 while (SEQ_QEMPTY(q)) { 422 if (ioflag & IO_NDELAY) 423 return EWOULDBLOCK; 424 else { 425 error = seq_sleep(&sc->rchan, "seq rd"); 426 if (error) 427 return error; 428 } 429 } 430 s = splaudio(); 431 while (uio->uio_resid >= sizeof ev && !error && !SEQ_QEMPTY(q)) { 432 SEQ_QGET(q, ev); 433 error = uiomove(&ev, sizeof ev, uio); 434 } 435 splx(s); 436 return error; 437 } 438 439 int 440 sequencerwrite(dev, uio, ioflag) 441 dev_t dev; 442 struct uio *uio; 443 int ioflag; 444 { 445 struct sequencer_softc *sc = &seqdevs[SEQUENCERUNIT(dev)]; 446 struct sequencer_queue *q = &sc->outq; 447 int error; 448 seq_event_rec cmdbuf; 449 int size; 450 451 DPRINTFN(2, ("sequencerwrite: %p, count=%d\n", sc, (int) uio->uio_resid)); 452 453 error = 0; 454 size = sc->mode == SEQ_NEW ? sizeof cmdbuf : SEQOLD_CMDSIZE; 455 while (uio->uio_resid >= size) { 456 error = uiomove(&cmdbuf, size, uio); 457 if (error) 458 break; 459 if (sc->mode == SEQ_OLD) 460 if (seq_to_new(&cmdbuf, uio)) 461 continue; 462 if (SEQ_CMD(&cmdbuf) == SEQ_FULLSIZE) { 463 /* We do it like OSS does, asynchronously */ 464 error = seq_do_fullsize(sc, &cmdbuf, uio); 465 if (error) 466 break; 467 continue; 468 } 469 while (SEQ_QFULL(q)) { 470 seq_startoutput(sc); 471 if (SEQ_QFULL(q)) { 472 if (ioflag & IO_NDELAY) 473 return EWOULDBLOCK; 474 error = seq_sleep(&sc->wchan, "seq_wr"); 475 if (error) 476 return error; 477 } 478 } 479 SEQ_QPUT(q, cmdbuf); 480 } 481 seq_startoutput(sc); 482 483 #ifdef SEQUENCER_DEBUG 484 if (error) 485 DPRINTFN(2, ("sequencerwrite: error=%d\n", error)); 486 #endif 487 return error; 488 } 489 490 int 491 sequencerioctl(dev, cmd, addr, flag, p) 492 dev_t dev; 493 u_long cmd; 494 caddr_t addr; 495 int flag; 496 struct proc *p; 497 { 498 struct sequencer_softc *sc = &seqdevs[SEQUENCERUNIT(dev)]; 499 struct synth_info *si; 500 struct midi_dev *md; 501 int devno; 502 int error; 503 int t; 504 505 DPRINTFN(2, ("sequencerioctl: %p cmd=0x%08lx\n", sc, cmd)); 506 507 error = 0; 508 switch (cmd) { 509 case FIONBIO: 510 /* All handled in the upper FS layer. */ 511 break; 512 513 case FIOASYNC: 514 if (*(int *)addr) { 515 if (sc->async) 516 return EBUSY; 517 sc->async = p; 518 DPRINTF(("sequencer_ioctl: FIOASYNC %p\n", p)); 519 } else 520 sc->async = 0; 521 break; 522 523 case SEQUENCER_RESET: 524 seq_reset(sc); 525 break; 526 527 case SEQUENCER_PANIC: 528 seq_reset(sc); 529 /* Do more? OSS doesn't */ 530 break; 531 532 case SEQUENCER_SYNC: 533 if (sc->flags == FREAD) 534 return 0; 535 seq_drain(sc); 536 error = 0; 537 break; 538 539 case SEQUENCER_INFO: 540 si = (struct synth_info*)addr; 541 devno = si->device; 542 if (devno < 0 || devno >= sc->nmidi) 543 return EINVAL; 544 md = sc->devs[devno]; 545 strncpy(si->name, md->name, sizeof si->name); 546 si->synth_type = SYNTH_TYPE_MIDI; 547 si->synth_subtype = md->subtype; 548 si->nr_voices = md->nr_voices; 549 si->instr_bank_size = md->instr_bank_size; 550 si->capabilities = md->capabilities; 551 break; 552 553 case SEQUENCER_NRSYNTHS: 554 *(int *)addr = sc->nmidi; 555 break; 556 557 case SEQUENCER_NRMIDIS: 558 *(int *)addr = sc->nmidi; 559 break; 560 561 case SEQUENCER_OUTOFBAND: 562 DPRINTFN(3, ("sequencer_ioctl: OOB=%02x %02x %02x %02x %02x %02x %02x %02x\n", 563 *(u_char *)addr, *(u_char *)(addr+1), 564 *(u_char *)(addr+2), *(u_char *)(addr+3), 565 *(u_char *)(addr+4), *(u_char *)(addr+5), 566 *(u_char *)(addr+6), *(u_char *)(addr+7))); 567 error = seq_do_command(sc, (seq_event_rec *)addr); 568 break; 569 570 case SEQUENCER_TMR_TIMEBASE: 571 t = *(int *)addr; 572 if (t < 1) 573 t = 1; 574 if (t > 10000) 575 t = 10000; 576 sc->timer.timebase = t; 577 *(int *)addr = t; 578 RECALC_TICK(&sc->timer); 579 break; 580 581 case SEQUENCER_TMR_START: 582 error = seq_timer(sc, TMR_START, 0, 0); 583 break; 584 585 case SEQUENCER_TMR_STOP: 586 error = seq_timer(sc, TMR_STOP, 0, 0); 587 break; 588 589 case SEQUENCER_TMR_CONTINUE: 590 error = seq_timer(sc, TMR_CONTINUE, 0, 0); 591 break; 592 593 case SEQUENCER_TMR_TEMPO: 594 t = *(int *)addr; 595 if (t < 8) 596 t = 8; 597 if (t > 250) 598 t = 250; 599 sc->timer.tempo = t; 600 *(int *)addr = t; 601 RECALC_TICK(&sc->timer); 602 break; 603 604 case SEQUENCER_TMR_SOURCE: 605 *(int *)addr = SEQUENCER_TMR_INTERNAL; 606 break; 607 608 case SEQUENCER_TMR_METRONOME: 609 /* noop */ 610 break; 611 612 case SEQUENCER_THRESHOLD: 613 t = SEQ_MAXQ - *(int *)addr / sizeof (seq_event_rec); 614 if (t < 1) 615 t = 1; 616 if (t > SEQ_MAXQ) 617 t = SEQ_MAXQ; 618 sc->lowat = t; 619 break; 620 621 case SEQUENCER_CTRLRATE: 622 *(int *)addr = (sc->timer.tempo*sc->timer.timebase + 30) / 60; 623 break; 624 625 case SEQUENCER_GETTIME: 626 { 627 struct timeval now; 628 u_long t; 629 microtime(&now); 630 SUBTIMEVAL(&now, &sc->timer.start); 631 t = now.tv_sec * 1000000 + now.tv_usec; 632 t /= sc->timer.tick; 633 *(int *)addr = t; 634 break; 635 } 636 637 default: 638 DPRINTFN(-1,("sequencer_ioctl: unimpl %08lx\n", cmd)); 639 error = EINVAL; 640 break; 641 } 642 return error; 643 } 644 645 int 646 sequencerpoll(dev, events, p) 647 dev_t dev; 648 int events; 649 struct proc *p; 650 { 651 struct sequencer_softc *sc = &seqdevs[SEQUENCERUNIT(dev)]; 652 int revents = 0; 653 654 DPRINTF(("sequencerpoll: %p events=0x%x\n", sc, events)); 655 656 if (events & (POLLIN | POLLRDNORM)) 657 if (!SEQ_QEMPTY(&sc->inq)) 658 revents |= events & (POLLIN | POLLRDNORM); 659 660 if (events & (POLLOUT | POLLWRNORM)) 661 if (SEQ_QLEN(&sc->outq) < sc->lowat) 662 revents |= events & (POLLOUT | POLLWRNORM); 663 664 if (revents == 0) { 665 if (events & (POLLIN | POLLRDNORM)) 666 selrecord(p, &sc->rsel); 667 668 if (events & (POLLOUT | POLLWRNORM)) 669 selrecord(p, &sc->wsel); 670 } 671 672 return revents; 673 } 674 675 void 676 seq_reset(sc) 677 struct sequencer_softc *sc; 678 { 679 int i, chn; 680 struct midi_dev *md; 681 682 for (i = 0; i < sc->nmidi; i++) { 683 md = sc->devs[i]; 684 midiseq_reset(md); 685 for (chn = 0; chn < MAXCHAN; chn++) { 686 midiseq_ctlchange(md, chn, MIDI_CTRL_ALLOFF, 0); 687 midiseq_ctlchange(md, chn, MIDI_CTRL_RESET, 0); 688 midiseq_pitchbend(md, chn, MIDI_BEND_NEUTRAL); 689 } 690 } 691 } 692 693 int 694 seq_do_command(sc, b) 695 struct sequencer_softc *sc; 696 seq_event_rec *b; 697 { 698 int dev; 699 700 DPRINTFN(4, ("seq_do_command: %p cmd=0x%02x\n", sc, SEQ_CMD(b))); 701 702 switch(SEQ_CMD(b)) { 703 case SEQ_LOCAL: 704 return seq_do_local(sc, b); 705 case SEQ_TIMING: 706 return seq_do_timing(sc, b); 707 case SEQ_CHN_VOICE: 708 return seq_do_chnvoice(sc, b); 709 case SEQ_CHN_COMMON: 710 return seq_do_chncommon(sc, b); 711 case SEQ_SYSEX: 712 return seq_do_sysex(sc, b); 713 /* COMPAT */ 714 case SEQOLD_MIDIPUTC: 715 dev = b->arr[2]; 716 if (dev < 0 || dev >= sc->nmidi) 717 return (ENXIO); 718 return midiseq_putc(sc->devs[dev], b->arr[1]); 719 default: 720 DPRINTFN(-1,("seq_do_command: unimpl command %02x\n", 721 SEQ_CMD(b))); 722 return (EINVAL); 723 } 724 } 725 726 int 727 seq_do_chnvoice(sc, b) 728 struct sequencer_softc *sc; 729 seq_event_rec *b; 730 { 731 int cmd, dev, chan, note, parm, voice; 732 int error; 733 struct midi_dev *md; 734 735 dev = SEQ_EDEV(b); 736 if (dev < 0 || dev >= sc->nmidi) 737 return ENXIO; 738 md = sc->devs[dev]; 739 cmd = SEQ_ECMD(b); 740 chan = SEQ_ECHAN(b); 741 note = SEQ_ENOTE(b); 742 parm = SEQ_EPARM(b); 743 DPRINTFN(2,("seq_do_chnvoice: cmd=%02x dev=%d chan=%d note=%d parm=%d\n", 744 cmd, dev, chan, note, parm)); 745 voice = chan; 746 if (cmd == MIDI_NOTEON && parm == 0) { 747 cmd = MIDI_NOTEOFF; 748 parm = MIDI_HALF_VEL; 749 } 750 switch(cmd) { 751 case MIDI_NOTEON: 752 DPRINTFN(5, ("seq_do_chnvoice: noteon %p %d %d %d\n", 753 md, voice, note, parm)); 754 error = midiseq_noteon(md, voice, note, parm); 755 break; 756 case MIDI_NOTEOFF: 757 error = midiseq_noteoff(md, voice, note, parm); 758 break; 759 case MIDI_KEY_PRESSURE: 760 error = midiseq_keypressure(md, voice, note, parm); 761 break; 762 default: 763 DPRINTFN(-1,("seq_do_chnvoice: unimpl command %02x\n", cmd)); 764 error = EINVAL; 765 break; 766 } 767 return error; 768 } 769 770 int 771 seq_do_chncommon(sc, b) 772 struct sequencer_softc *sc; 773 seq_event_rec *b; 774 { 775 int cmd, dev, chan, p1, w14; 776 int error; 777 struct midi_dev *md; 778 union { 779 int16_t s; 780 u_int8_t b[2]; 781 } u; 782 783 dev = SEQ_EDEV(b); 784 if (dev < 0 || dev >= sc->nmidi) 785 return ENXIO; 786 md = sc->devs[dev]; 787 cmd = SEQ_ECMD(b); 788 chan = SEQ_ECHAN(b); 789 p1 = SEQ_EP1(b); 790 u.b[0] = b->arr[6]; 791 u.b[1] = b->arr[7]; 792 w14 = u.s; 793 DPRINTFN(2,("seq_do_chncommon: %02x\n", cmd)); 794 795 error = 0; 796 switch(cmd) { 797 case MIDI_PGM_CHANGE: 798 error = midiseq_pgmchange(md, chan, p1); 799 break; 800 case MIDI_CTL_CHANGE: 801 if (chan > 15 || p1 > 127) 802 return 0; /* EINVAL */ 803 error = midiseq_ctlchange(md, chan, p1, w14); 804 break; 805 case MIDI_PITCH_BEND: 806 error = midiseq_pitchbend(md, chan, w14); 807 break; 808 case MIDI_CHN_PRESSURE: 809 error = midiseq_chnpressure(md, chan, p1); 810 break; 811 default: 812 DPRINTFN(-1,("seq_do_chncommon: unimpl command %02x\n", cmd)); 813 error = EINVAL; 814 break; 815 } 816 return (error); 817 } 818 819 int 820 seq_do_timing(sc, b) 821 struct sequencer_softc *sc; 822 seq_event_rec *b; 823 { 824 union { 825 int32_t i; 826 u_int8_t b[4]; 827 } u; 828 u.b[0] = b->arr[4]; 829 u.b[1] = b->arr[5]; 830 u.b[2] = b->arr[6]; 831 u.b[3] = b->arr[7]; 832 return seq_timer(sc, SEQ_TCMD(b), u.i, b); 833 } 834 835 int 836 seq_do_local(sc, b) 837 struct sequencer_softc *sc; 838 seq_event_rec *b; 839 { 840 return (EINVAL); 841 } 842 843 int 844 seq_do_sysex(sc, b) 845 struct sequencer_softc *sc; 846 seq_event_rec *b; 847 { 848 int dev, i; 849 struct midi_dev *md; 850 u_int8_t c, *buf = &b->arr[2]; 851 852 dev = SEQ_EDEV(b); 853 if (dev < 0 || dev >= sc->nmidi) 854 return (ENXIO); 855 DPRINTF(("seq_do_sysex: dev=%d\n", dev)); 856 md = sc->devs[dev]; 857 858 if (!sc->doingsysex) { 859 c = MIDI_SYSEX_START; 860 midiseq_out(md, &c, 1, 0); 861 sc->doingsysex = 1; 862 } 863 864 for (i = 0; i < 6 && buf[i] != 0xff; i++) 865 ; 866 midiseq_out(md, buf, i, 0); 867 if (i < 6 || (i > 0 && buf[i-1] == MIDI_SYSEX_END)) 868 sc->doingsysex = 0; 869 return (0); 870 } 871 872 int 873 seq_timer(sc, cmd, parm, b) 874 struct sequencer_softc *sc; 875 int cmd, parm; 876 seq_event_rec *b; 877 { 878 struct syn_timer *t = &sc->timer; 879 struct timeval when; 880 int ticks; 881 int error; 882 long long usec; 883 884 DPRINTFN(2,("seq_timer: %02x %d\n", cmd, parm)); 885 886 error = 0; 887 switch(cmd) { 888 case TMR_WAIT_REL: 889 parm += t->last; 890 /* fall into */ 891 case TMR_WAIT_ABS: 892 t->last = parm; 893 usec = (long long)parm * (long long)t->tick; /* convert to usec */ 894 when.tv_sec = usec / 1000000; 895 when.tv_usec = usec % 1000000; 896 DPRINTFN(4, ("seq_timer: parm=%d, sleep when=%ld.%06ld", parm, 897 when.tv_sec, when.tv_usec)); 898 ADDTIMEVAL(&when, &t->start); /* abstime for end */ 899 ticks = hzto(&when); 900 DPRINTFN(4, (" when+start=%ld.%06ld, tick=%d\n", 901 when.tv_sec, when.tv_usec, ticks)); 902 if (ticks > 0) { 903 #ifdef DIAGNOSTIC 904 if (ticks > 20 * hz) { 905 /* Waiting more than 20s */ 906 printf("seq_timer: funny ticks=%d, usec=%lld, parm=%d, tick=%ld\n", 907 ticks, usec, parm, t->tick); 908 } 909 #endif 910 sc->timeout = 1; 911 callout_reset(&sc->sc_callout, ticks, 912 seq_timeout, sc); 913 } 914 #ifdef SEQUENCER_DEBUG 915 else if (tick < 0) 916 DPRINTF(("seq_timer: ticks = %d\n", ticks)); 917 #endif 918 break; 919 case TMR_START: 920 microtime(&t->start); 921 t->running = 1; 922 break; 923 case TMR_STOP: 924 microtime(&t->stop); 925 t->running = 0; 926 break; 927 case TMR_CONTINUE: 928 microtime(&when); 929 SUBTIMEVAL(&when, &t->stop); 930 ADDTIMEVAL(&t->start, &when); 931 t->running = 1; 932 break; 933 case TMR_TEMPO: 934 /* parm is ticks per minute / timebase */ 935 if (parm < 8) 936 parm = 8; 937 if (parm > 360) 938 parm = 360; 939 t->tempo = parm; 940 RECALC_TICK(t); 941 break; 942 case TMR_ECHO: 943 error = seq_input_event(sc, b); 944 break; 945 case TMR_RESET: 946 t->last = 0; 947 microtime(&t->start); 948 break; 949 default: 950 DPRINTF(("seq_timer: unknown %02x\n", cmd)); 951 error = EINVAL; 952 break; 953 } 954 return (error); 955 } 956 957 int 958 seq_do_fullsize(sc, b, uio) 959 struct sequencer_softc *sc; 960 seq_event_rec *b; 961 struct uio *uio; 962 { 963 struct sysex_info sysex; 964 u_int dev; 965 966 #ifdef DIAGNOSTIC 967 if (sizeof(seq_event_rec) != SEQ_SYSEX_HDRSIZE) { 968 printf("seq_do_fullsize: sysex size ??\n"); 969 return EINVAL; 970 } 971 #endif 972 memcpy(&sysex, b, sizeof sysex); 973 dev = sysex.device_no; 974 DPRINTFN(2, ("seq_do_fullsize: fmt=%04x, dev=%d, len=%d\n", 975 sysex.key, dev, sysex.len)); 976 return (midiseq_loadpatch(sc->devs[dev], &sysex, uio)); 977 } 978 979 /* Convert an old sequencer event to a new one. */ 980 int 981 seq_to_new(ev, uio) 982 seq_event_rec *ev; 983 struct uio *uio; 984 { 985 int cmd, chan, note, parm; 986 u_int32_t delay; 987 int error; 988 989 cmd = SEQ_CMD(ev); 990 chan = ev->arr[1]; 991 note = ev->arr[2]; 992 parm = ev->arr[3]; 993 DPRINTFN(3, ("seq_to_new: 0x%02x %d %d %d\n", cmd, chan, note, parm)); 994 995 if (cmd >= 0x80) { 996 /* Fill the event record */ 997 if (uio->uio_resid >= sizeof *ev - SEQOLD_CMDSIZE) { 998 error = uiomove(&ev->arr[SEQOLD_CMDSIZE], 999 sizeof *ev - SEQOLD_CMDSIZE, uio); 1000 if (error) 1001 return error; 1002 } else 1003 return EINVAL; 1004 } 1005 1006 switch(cmd) { 1007 case SEQOLD_NOTEOFF: 1008 note = 255; 1009 SEQ_ECMD(ev) = MIDI_NOTEOFF; 1010 goto onoff; 1011 case SEQOLD_NOTEON: 1012 SEQ_ECMD(ev) = MIDI_NOTEON; 1013 onoff: 1014 SEQ_CMD(ev) = SEQ_CHN_VOICE; 1015 SEQ_EDEV(ev) = 0; 1016 SEQ_ECHAN(ev) = chan; 1017 SEQ_ENOTE(ev) = note; 1018 SEQ_EPARM(ev) = parm; 1019 break; 1020 case SEQOLD_WAIT: 1021 delay = *(u_int32_t *)ev->arr >> 8; 1022 SEQ_CMD(ev) = SEQ_TIMING; 1023 SEQ_TCMD(ev) = TMR_WAIT_REL; 1024 *(u_int32_t *)&ev->arr[4] = delay; 1025 break; 1026 case SEQOLD_SYNCTIMER: 1027 SEQ_CMD(ev) = SEQ_TIMING; 1028 SEQ_TCMD(ev) = TMR_RESET; 1029 break; 1030 case SEQOLD_PGMCHANGE: 1031 SEQ_ECMD(ev) = MIDI_PGM_CHANGE; 1032 SEQ_CMD(ev) = SEQ_CHN_COMMON; 1033 SEQ_EDEV(ev) = 0; 1034 SEQ_ECHAN(ev) = chan; 1035 SEQ_EP1(ev) = note; 1036 break; 1037 case SEQOLD_MIDIPUTC: 1038 break; /* interpret in normal mode */ 1039 case SEQOLD_ECHO: 1040 case SEQOLD_PRIVATE: 1041 case SEQOLD_EXTENDED: 1042 default: 1043 DPRINTF(("seq_to_new: not impl 0x%02x\n", cmd)); 1044 return EINVAL; 1045 /* In case new events show up */ 1046 case SEQ_TIMING: 1047 case SEQ_CHN_VOICE: 1048 case SEQ_CHN_COMMON: 1049 case SEQ_FULLSIZE: 1050 break; 1051 } 1052 return 0; 1053 } 1054 1055 /**********************************************/ 1056 1057 void 1058 midiseq_in(md, msg, len) 1059 struct midi_dev *md; 1060 u_char *msg; 1061 int len; 1062 { 1063 int unit = md->unit; 1064 seq_event_rec ev; 1065 int status, chan; 1066 1067 DPRINTFN(2, ("midiseq_in: %p %02x %02x %02x\n", 1068 md, msg[0], msg[1], msg[2])); 1069 1070 status = MIDI_GET_STATUS(msg[0]); 1071 chan = MIDI_GET_CHAN(msg[0]); 1072 switch (status) { 1073 case MIDI_NOTEON: 1074 if (msg[2] == 0) { 1075 status = MIDI_NOTEOFF; 1076 msg[2] = MIDI_HALF_VEL; 1077 } 1078 /* fall into */ 1079 case MIDI_NOTEOFF: 1080 case MIDI_KEY_PRESSURE: 1081 SEQ_MK_CHN_VOICE(&ev, unit, status, chan, msg[1], msg[2]); 1082 break; 1083 case MIDI_CTL_CHANGE: 1084 SEQ_MK_CHN_COMMON(&ev, unit, status, chan, msg[1], 0, msg[2]); 1085 break; 1086 case MIDI_PGM_CHANGE: 1087 case MIDI_CHN_PRESSURE: 1088 SEQ_MK_CHN_COMMON(&ev, unit, status, chan, msg[1], 0, 0); 1089 break; 1090 case MIDI_PITCH_BEND: 1091 SEQ_MK_CHN_COMMON(&ev, unit, status, chan, 0, 0, 1092 (msg[1] & 0x7f) | ((msg[2] & 0x7f) << 7)); 1093 break; 1094 default: 1095 return; 1096 } 1097 seq_event_intr(md->seq, &ev); 1098 } 1099 1100 struct midi_dev * 1101 midiseq_open(unit, flags) 1102 int unit; 1103 int flags; 1104 { 1105 extern struct cfdriver midi_cd; 1106 extern const struct cdevsw midi_cdevsw; 1107 int error; 1108 struct midi_dev *md; 1109 struct midi_softc *sc; 1110 struct midi_info mi; 1111 1112 DPRINTFN(2, ("midiseq_open: %d %d\n", unit, flags)); 1113 error = (*midi_cdevsw.d_open)(makedev(0, unit), flags, 0, 0); 1114 if (error) 1115 return (0); 1116 sc = midi_cd.cd_devs[unit]; 1117 sc->seqopen = 1; 1118 md = malloc(sizeof *md, M_DEVBUF, M_WAITOK|M_ZERO); 1119 sc->seq_md = md; 1120 md->msc = sc; 1121 midi_getinfo(makedev(0, unit), &mi); 1122 md->unit = unit; 1123 md->name = mi.name; 1124 md->subtype = 0; 1125 md->nr_voices = 128; /* XXX */ 1126 md->instr_bank_size = 128; /* XXX */ 1127 if (mi.props & MIDI_PROP_CAN_INPUT) 1128 md->capabilities |= SYNTH_CAP_INPUT; 1129 return (md); 1130 } 1131 1132 void 1133 midiseq_close(md) 1134 struct midi_dev *md; 1135 { 1136 extern const struct cdevsw midi_cdevsw; 1137 1138 DPRINTFN(2, ("midiseq_close: %d\n", md->unit)); 1139 (*midi_cdevsw.d_close)(makedev(0, md->unit), 0, 0, 0); 1140 free(md, M_DEVBUF); 1141 } 1142 1143 void 1144 midiseq_reset(md) 1145 struct midi_dev *md; 1146 { 1147 /* XXX send GM reset? */ 1148 DPRINTFN(3, ("midiseq_reset: %d\n", md->unit)); 1149 } 1150 1151 int 1152 midiseq_out(md, buf, cc, chk) 1153 struct midi_dev *md; 1154 u_char *buf; 1155 u_int cc; 1156 int chk; 1157 { 1158 DPRINTFN(5, ("midiseq_out: m=%p, unit=%d, buf[0]=0x%02x, cc=%d\n", 1159 md->msc, md->unit, buf[0], cc)); 1160 1161 /* The MIDI "status" byte does not have to be repeated. */ 1162 if (chk && md->last_cmd == buf[0]) 1163 buf++, cc--; 1164 else 1165 md->last_cmd = buf[0]; 1166 return midi_writebytes(md->unit, buf, cc); 1167 } 1168 1169 int 1170 midiseq_noteon(md, chan, note, vel) 1171 struct midi_dev *md; 1172 int chan, note, vel; 1173 { 1174 u_char buf[3]; 1175 1176 DPRINTFN(6, ("midiseq_noteon 0x%02x %d %d\n", 1177 MIDI_NOTEON | chan, note, vel)); 1178 if (chan < 0 || chan > 15 || 1179 note < 0 || note > 127) 1180 return EINVAL; 1181 if (vel < 0) vel = 0; 1182 if (vel > 127) vel = 127; 1183 buf[0] = MIDI_NOTEON | chan; 1184 buf[1] = note; 1185 buf[2] = vel; 1186 return midiseq_out(md, buf, 3, 1); 1187 } 1188 1189 int 1190 midiseq_noteoff(md, chan, note, vel) 1191 struct midi_dev *md; 1192 int chan, note, vel; 1193 { 1194 u_char buf[3]; 1195 1196 if (chan < 0 || chan > 15 || 1197 note < 0 || note > 127) 1198 return EINVAL; 1199 if (vel < 0) vel = 0; 1200 if (vel > 127) vel = 127; 1201 buf[0] = MIDI_NOTEOFF | chan; 1202 buf[1] = note; 1203 buf[2] = vel; 1204 return midiseq_out(md, buf, 3, 1); 1205 } 1206 1207 int 1208 midiseq_keypressure(md, chan, note, vel) 1209 struct midi_dev *md; 1210 int chan, note, vel; 1211 { 1212 u_char buf[3]; 1213 1214 if (chan < 0 || chan > 15 || 1215 note < 0 || note > 127) 1216 return EINVAL; 1217 if (vel < 0) vel = 0; 1218 if (vel > 127) vel = 127; 1219 buf[0] = MIDI_KEY_PRESSURE | chan; 1220 buf[1] = note; 1221 buf[2] = vel; 1222 return midiseq_out(md, buf, 3, 1); 1223 } 1224 1225 int 1226 midiseq_pgmchange(md, chan, parm) 1227 struct midi_dev *md; 1228 int chan, parm; 1229 { 1230 u_char buf[2]; 1231 1232 if (chan < 0 || chan > 15 || 1233 parm < 0 || parm > 127) 1234 return EINVAL; 1235 buf[0] = MIDI_PGM_CHANGE | chan; 1236 buf[1] = parm; 1237 return midiseq_out(md, buf, 2, 1); 1238 } 1239 1240 int 1241 midiseq_chnpressure(md, chan, parm) 1242 struct midi_dev *md; 1243 int chan, parm; 1244 { 1245 u_char buf[2]; 1246 1247 if (chan < 0 || chan > 15 || 1248 parm < 0 || parm > 127) 1249 return EINVAL; 1250 buf[0] = MIDI_CHN_PRESSURE | chan; 1251 buf[1] = parm; 1252 return midiseq_out(md, buf, 2, 1); 1253 } 1254 1255 int 1256 midiseq_ctlchange(md, chan, parm, w14) 1257 struct midi_dev *md; 1258 int chan, parm, w14; 1259 { 1260 u_char buf[3]; 1261 1262 if (chan < 0 || chan > 15 || 1263 parm < 0 || parm > 127) 1264 return EINVAL; 1265 buf[0] = MIDI_CTL_CHANGE | chan; 1266 buf[1] = parm; 1267 buf[2] = w14 & 0x7f; 1268 return midiseq_out(md, buf, 3, 1); 1269 } 1270 1271 int 1272 midiseq_pitchbend(md, chan, parm) 1273 struct midi_dev *md; 1274 int chan, parm; 1275 { 1276 u_char buf[3]; 1277 1278 if (chan < 0 || chan > 15) 1279 return EINVAL; 1280 buf[0] = MIDI_PITCH_BEND | chan; 1281 buf[1] = parm & 0x7f; 1282 buf[2] = (parm >> 7) & 0x7f; 1283 return midiseq_out(md, buf, 3, 1); 1284 } 1285 1286 int 1287 midiseq_loadpatch(md, sysex, uio) 1288 struct midi_dev *md; 1289 struct sysex_info *sysex; 1290 struct uio *uio; 1291 { 1292 u_char c, buf[128]; 1293 int i, cc, error; 1294 1295 if (sysex->key != SEQ_SYSEX_PATCH) { 1296 DPRINTFN(-1,("midiseq_loadpatch: bad patch key 0x%04x\n", 1297 sysex->key)); 1298 return (EINVAL); 1299 } 1300 if (uio->uio_resid < sysex->len) 1301 /* adjust length, should be an error */ 1302 sysex->len = uio->uio_resid; 1303 1304 DPRINTFN(2, ("midiseq_loadpatch: len=%d\n", sysex->len)); 1305 if (sysex->len == 0) 1306 return EINVAL; 1307 error = uiomove(&c, 1, uio); 1308 if (error) 1309 return error; 1310 if (c != MIDI_SYSEX_START) /* must start like this */ 1311 return EINVAL; 1312 error = midiseq_out(md, &c, 1, 0); 1313 if (error) 1314 return error; 1315 --sysex->len; 1316 while (sysex->len > 0) { 1317 cc = sysex->len; 1318 if (cc > sizeof buf) 1319 cc = sizeof buf; 1320 error = uiomove(buf, cc, uio); 1321 if (error) 1322 break; 1323 for(i = 0; i < cc && !MIDI_IS_STATUS(buf[i]); i++) 1324 ; 1325 error = midiseq_out(md, buf, i, 0); 1326 if (error) 1327 break; 1328 sysex->len -= i; 1329 if (i != cc) 1330 break; 1331 } 1332 /* Any leftover data in uio is rubbish; 1333 * the SYSEX should be one write ending in SYSEX_END. 1334 */ 1335 uio->uio_resid = 0; 1336 c = MIDI_SYSEX_END; 1337 return midiseq_out(md, &c, 1, 0); 1338 } 1339 1340 int 1341 midiseq_putc(md, data) 1342 struct midi_dev *md; 1343 int data; 1344 { 1345 u_char c = data; 1346 DPRINTFN(4,("midiseq_putc: 0x%02x\n", data)); 1347 return midiseq_out(md, &c, 1, 0); 1348 } 1349 1350 #include "midi.h" 1351 #if NMIDI == 0 1352 dev_type_open(midiopen); 1353 dev_type_close(midiclose); 1354 1355 const struct cdevsw midi_cdevsw = { 1356 midiopen, midiclose, noread, nowrite, noioctl, 1357 nostop, notty, nopoll, nommap, 1358 }; 1359 1360 /* 1361 * If someone has a sequencer, but no midi devices there will 1362 * be unresolved references, so we provide little stubs. 1363 */ 1364 1365 int 1366 midi_unit_count() 1367 { 1368 return (0); 1369 } 1370 1371 int 1372 midiopen(dev, flags, ifmt, p) 1373 dev_t dev; 1374 int flags, ifmt; 1375 struct proc *p; 1376 { 1377 return (ENXIO); 1378 } 1379 1380 struct cfdriver midi_cd; 1381 1382 void 1383 midi_getinfo(dev, mi) 1384 dev_t dev; 1385 struct midi_info *mi; 1386 { 1387 } 1388 1389 int 1390 midiclose(dev, flags, ifmt, p) 1391 dev_t dev; 1392 int flags, ifmt; 1393 struct proc *p; 1394 { 1395 return (ENXIO); 1396 } 1397 1398 int 1399 midi_writebytes(unit, buf, cc) 1400 int unit; 1401 u_char *buf; 1402 int cc; 1403 { 1404 return (ENXIO); 1405 } 1406 #endif /* NMIDI == 0 */ 1407