umidi.c revision 1.2
1 /* $NetBSD: umidi.c,v 1.2 2001/01/31 16:02:38 tshiozak Exp $ */ 2 /* 3 * Copyright (c) 2001 The NetBSD Foundation, Inc. 4 * All rights reserved. 5 * 6 * This code is derived from software contributed to The NetBSD Foundation 7 * by Takuya SHIOZAKI (tshiozak (at) netbsd.org). 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by the NetBSD 20 * Foundation, Inc. and its contributors. 21 * 4. Neither the name of The NetBSD Foundation nor the names of its 22 * contributors may be used to endorse or promote products derived 23 * from this software without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 26 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGE. 36 */ 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/kernel.h> 41 #include <sys/malloc.h> 42 #include <sys/device.h> 43 #include <sys/ioctl.h> 44 #include <sys/conf.h> 45 #include <sys/file.h> 46 #include <sys/select.h> 47 #include <sys/proc.h> 48 #include <sys/vnode.h> 49 #include <sys/poll.h> 50 #include <sys/lock.h> 51 52 #include <dev/usb/usb.h> 53 #include <dev/usb/usbdi.h> 54 #include <dev/usb/usbdi_util.h> 55 56 #include <dev/usb/usbdevs.h> 57 #include <dev/usb/uaudioreg.h> 58 #include <dev/usb/umidireg.h> 59 #include <dev/usb/umidivar.h> 60 #include <dev/usb/umidi_quirks.h> 61 62 #include <dev/midi_if.h> 63 64 #ifdef UMIDI_DEBUG 65 #define DPRINTF(x) if (umididebug) printf x 66 #define DPRINTFN(n,x) if (umididebug >= (n)) printf x 67 int umididebug = 0; 68 #else 69 #define DPRINTF(x) 70 #define DPRINTFN(n,x) 71 #endif 72 73 74 static int umidi_open(void *, int, 75 void (*)(void *, int), void (*)(void *), void *); 76 static void umidi_close(void *); 77 static int umidi_output(void *, int); 78 static void umidi_getinfo(void *, struct midi_info *); 79 80 static usbd_status enable_an_endpoint(struct umidi_endpoint *); 81 static void disable_an_endpoint(struct umidi_endpoint *, int); 82 83 static usbd_status alloc_all_endpoints(struct umidi_softc *); 84 static void free_all_endpoints(struct umidi_softc *); 85 86 static usbd_status alloc_all_jacks(struct umidi_softc *); 87 static void free_all_jacks(struct umidi_softc *); 88 static usbd_status bind_jacks_to_mididev(struct umidi_softc *, 89 struct umidi_jack *, 90 struct umidi_jack *, 91 struct umidi_mididev *); 92 static usbd_status unbind_jacks_from_mididev(struct umidi_mididev *); 93 static usbd_status unbind_all_jacks(struct umidi_softc *); 94 static usbd_status assign_all_jacks_automatically(struct umidi_softc *); 95 static usbd_status open_jack(struct umidi_jack *); 96 static void close_jack(struct umidi_jack *); 97 98 static usbd_status attach_mididev(struct umidi_softc *, 99 struct umidi_mididev *); 100 static usbd_status detach_mididev(struct umidi_mididev *, int); 101 static usbd_status deactivate_mididev(struct umidi_mididev *); 102 static usbd_status alloc_all_mididevs(struct umidi_softc *, int); 103 static void free_all_mididevs(struct umidi_softc *); 104 static usbd_status attach_all_mididevs(struct umidi_softc *); 105 static usbd_status detach_all_mididevs(struct umidi_softc *, int); 106 static usbd_status deactivate_all_mididevs(struct umidi_softc *); 107 108 #ifdef UMIDI_DEBUG 109 static void dump_sc(struct umidi_softc *); 110 static void dump_ep(struct umidi_endpoint *); 111 static void dump_jack(struct umidi_jack *); 112 #endif 113 114 static void init_packet(struct umidi_packet *); 115 116 static void in_packet_to_mididev(struct umidi_endpoint *, uByte *); 117 static usbd_status start_input_transfer(struct umidi_endpoint *); 118 static usbd_status start_output_transfer(struct umidi_endpoint *); 119 static void in_intr(usbd_xfer_handle, usbd_private_handle, usbd_status); 120 static void out_intr(usbd_xfer_handle, usbd_private_handle, usbd_status); 121 static void out_build_packet(int, struct umidi_packet *, uByte); 122 123 124 struct midi_hw_if umidi_hw_if = { 125 umidi_open, 126 umidi_close, 127 umidi_output, 128 umidi_getinfo, 129 0, /* ioctl */ 130 }; 131 132 USB_DECLARE_DRIVER(umidi); 133 int umidi_activate __P((device_ptr_t, enum devact)); 134 int umidi_detach __P((device_ptr_t, int)); 135 136 USB_MATCH(umidi) 137 { 138 USB_MATCH_START(umidi, uaa); 139 usb_interface_descriptor_t *id; 140 141 DPRINTFN(1,("umidi_match\n")); 142 143 if (uaa->iface == NULL) 144 return UMATCH_NONE; 145 146 if (umidi_search_quirk(uaa->vendor, uaa->product, uaa->ifaceno)) 147 return UMATCH_IFACECLASS_IFACESUBCLASS; 148 149 id = usbd_get_interface_descriptor(uaa->iface); 150 if (id!=NULL && 151 id->bInterfaceClass==UICLASS_AUDIO && 152 id->bInterfaceSubClass==UISUBCLASS_MIDISTREAM) 153 return UMATCH_IFACECLASS_IFACESUBCLASS; 154 155 return UMATCH_NONE; 156 } 157 158 USB_ATTACH(umidi) 159 { 160 usbd_status err; 161 USB_ATTACH_START(umidi, sc, uaa); 162 char devinfo[1024]; 163 164 DPRINTFN(1,("umidi_attach\n")); 165 166 usbd_devinfo(uaa->device, 0, devinfo); 167 printf("\n%s: %s\n", USBDEVNAME(sc->sc_dev), devinfo); 168 169 sc->sc_iface = uaa->iface; 170 sc->sc_udev = uaa->device; 171 172 sc->sc_quirk = 173 umidi_search_quirk(uaa->vendor, uaa->product, uaa->ifaceno); 174 printf("%s: ", USBDEVNAME(sc->sc_dev)); 175 umidi_print_quirk(sc->sc_quirk); 176 177 178 err = alloc_all_endpoints(sc); 179 if (err!=USBD_NORMAL_COMPLETION) { 180 printf("%s: alloc_all_endpoints failed. (err=%d)\n", 181 USBDEVNAME(sc->sc_dev), err); 182 goto error; 183 } 184 err = alloc_all_jacks(sc); 185 if (err!=USBD_NORMAL_COMPLETION) { 186 free_all_endpoints(sc); 187 printf("%s: alloc_all_jacks failed. (err=%d)\n", 188 USBDEVNAME(sc->sc_dev), err); 189 goto error; 190 } 191 printf("%s: out=%d, in=%d\n", 192 USBDEVNAME(sc->sc_dev), 193 sc->sc_out_num_jacks, sc->sc_in_num_jacks); 194 195 err = assign_all_jacks_automatically(sc); 196 if (err!=USBD_NORMAL_COMPLETION) { 197 unbind_all_jacks(sc); 198 free_all_jacks(sc); 199 free_all_endpoints(sc); 200 printf("%s: assign_all_jacks_automatically failed. (err=%d)\n", 201 USBDEVNAME(sc->sc_dev), err); 202 goto error; 203 } 204 err = attach_all_mididevs(sc); 205 if (err!=USBD_NORMAL_COMPLETION) { 206 free_all_jacks(sc); 207 free_all_endpoints(sc); 208 printf("%s: attach_all_mididevs failed. (err=%d)\n", 209 USBDEVNAME(sc->sc_dev), err); 210 } 211 212 #ifdef UMIDI_DEBUG 213 dump_sc(sc); 214 #endif 215 216 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, 217 sc->sc_udev, USBDEV(sc->sc_dev)); 218 219 USB_ATTACH_SUCCESS_RETURN; 220 error: 221 printf("%s: disabled.\n", USBDEVNAME(sc->sc_dev)); 222 sc->sc_dying = 1; 223 USB_ATTACH_ERROR_RETURN; 224 } 225 226 int 227 umidi_activate(device_ptr_t self, enum devact act) 228 { 229 struct umidi_softc *sc = (struct umidi_softc *)self; 230 231 switch (act) { 232 case DVACT_ACTIVATE: 233 DPRINTFN(1,("umidi_activate (activate)\n")); 234 235 return EOPNOTSUPP; 236 break; 237 case DVACT_DEACTIVATE: 238 DPRINTFN(1,("umidi_activate (deactivate)\n")); 239 sc->sc_dying = 1; 240 deactivate_all_mididevs(sc); 241 break; 242 } 243 return 0; 244 } 245 246 USB_DETACH(umidi) 247 { 248 USB_DETACH_START(umidi, sc); 249 250 DPRINTFN(1,("umidi_detach\n")); 251 252 sc->sc_dying = 1; 253 detach_all_mididevs(sc, flags); 254 unbind_all_jacks(sc); 255 free_all_mididevs(sc); 256 free_all_jacks(sc); 257 free_all_endpoints(sc); 258 259 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 260 USBDEV(sc->sc_dev)); 261 262 return 0; 263 } 264 265 266 int 267 umidi_open(void *addr, 268 int flags, 269 void (*iintr)__P((void *, int)), 270 void (*ointr)__P((void *)), 271 void *arg) 272 { 273 struct umidi_mididev *mididev = addr; 274 struct umidi_softc *sc = mididev->sc; 275 276 DPRINTF(("umidi_open: sc=%p\n", sc)); 277 278 if (!sc) 279 return ENXIO; 280 if (mididev->opened) 281 return EBUSY; 282 if (sc->sc_dying || mididev->dying) 283 return EIO; 284 285 mididev->flags = flags; 286 mididev->opened = 1; 287 mididev->arg = arg; 288 mididev->iintr = iintr; 289 mididev->ointr = ointr; 290 if ((mididev->flags & FWRITE) && mididev->out_jack) 291 open_jack(mididev->out_jack); 292 if ((mididev->flags & FREAD) && mididev->in_jack) 293 open_jack(mididev->in_jack); 294 295 return 0; 296 } 297 298 void 299 umidi_close(void *addr) 300 { 301 int s; 302 struct umidi_mididev *mididev = addr; 303 304 s = splusb(); 305 if ((mididev->flags & FWRITE) && mididev->out_jack) 306 close_jack(mididev->out_jack); 307 if ((mididev->flags & FREAD) && mididev->in_jack) 308 close_jack(mididev->in_jack); 309 mididev->opened = 0; 310 mididev->arg = NULL; 311 mididev->iintr = NULL; 312 mididev->ointr = NULL; 313 splx(s); 314 } 315 316 #ifdef UMIDI_DEBUG 317 #define DPR_PACKET(dir, sc, p) \ 318 if ((unsigned char)(p)->buffer[1]!=0xFE) \ 319 DPRINTFN(500, \ 320 ("%s: umidi packet(" #dir "): %02X %02X %02X %02X\n", \ 321 USBDEVNAME(sc->sc_dev), \ 322 (unsigned char)(p)->buffer[0], \ 323 (unsigned char)(p)->buffer[1], \ 324 (unsigned char)(p)->buffer[2], \ 325 (unsigned char)(p)->buffer[3])); 326 #else 327 #define DPR_PACKET(dir, sc, p) 328 #endif 329 330 int 331 umidi_output(void *addr, int d) 332 { 333 struct umidi_mididev *mididev = addr; 334 struct umidi_softc *sc = mididev->sc; 335 struct umidi_jack *out_jack = mididev->out_jack; 336 struct umidi_endpoint *ep; 337 int error; 338 int s; 339 340 if (sc->sc_dying || mididev->dying || !mididev->opened) 341 return EIO; 342 343 error = 0; 344 if (out_jack && (ep=out_jack->endpoint)!=NULL && ep->buffer) { 345 DPRINTFN(1000, ("umidi_output: ep=%p 0x%02x\n", ep, d)); 346 out_build_packet(out_jack->cable_number, &out_jack->packet, d); 347 switch (out_jack->packet.state) { 348 case PS_EXCL_0: 349 case PS_END: 350 DPR_PACKET(out, sc, &out_jack->packet); 351 s = splusb(); 352 if (SIMPLEQ_EMPTY(&ep->queue)) { 353 memcpy(ep->buffer, 354 out_jack->packet.buffer, 355 UMIDI_PACKET_SIZE); 356 start_output_transfer(ep); 357 } 358 SIMPLEQ_INSERT_TAIL(&ep->queue, 359 out_jack, queue); 360 splx(s); 361 break; 362 default: 363 error = EINPROGRESS; 364 } 365 } else 366 error = ENODEV; 367 368 return error; 369 } 370 371 void 372 umidi_getinfo(void *addr, struct midi_info *mi) 373 { 374 struct umidi_mididev *mididev = addr; 375 // struct umidi_softc *sc = mididev->sc; 376 377 mi->name = "USB MIDI I/F"; 378 mi->props = MIDI_PROP_OUT_INTR; 379 if (mididev->in_jack) 380 mi->props |= MIDI_PROP_CAN_INPUT; 381 } 382 383 384 /* --- */ 385 386 /* enable/disable to transfer */ 387 static usbd_status 388 enable_an_endpoint(struct umidi_endpoint *ep) 389 { 390 struct umidi_softc *sc = ep->sc; 391 usbd_status err; 392 393 if (!ep->num_open++) { 394 DPRINTF(("%s: enable_an_endpoint %p\n", 395 USBDEVNAME(sc->sc_dev), ep)); 396 SIMPLEQ_INIT(&ep->queue); 397 ep->xfer = usbd_alloc_xfer(sc->sc_udev); 398 if (!ep->xfer) { 399 err = USBD_NOMEM; 400 goto quit; 401 } 402 ep->buffer = usbd_alloc_buffer(ep->xfer, UMIDI_PACKET_SIZE); 403 if (!ep->buffer) { 404 usbd_free_xfer(ep->xfer); 405 err = USBD_NOMEM; 406 goto quit; 407 } 408 err = usbd_open_pipe(sc->sc_iface, ep->addr, 0, &ep->pipe); 409 if (err) { 410 usbd_free_xfer(ep->xfer); 411 goto quit; 412 } 413 } 414 quit: 415 return err; 416 } 417 418 static void 419 disable_an_endpoint(struct umidi_endpoint *ep, int force) 420 { 421 if (force || (ep->num_open>0 && !--ep->num_open)) { 422 ep->num_open = 0; 423 usbd_abort_pipe(ep->pipe); 424 usbd_clear_endpoint_stall(ep->pipe); 425 usbd_close_pipe(ep->pipe); 426 usbd_free_xfer(ep->xfer); 427 DPRINTF(("%s: disable_an_endpoint %p\n", 428 USBDEVNAME(ep->sc->sc_dev), ep)); 429 } 430 } 431 432 433 /* alloc/free the array of endpoint structures */ 434 435 static usbd_status alloc_all_endpoints_fixed_ep(struct umidi_softc *); 436 static usbd_status alloc_all_endpoints_yamaha(struct umidi_softc *); 437 static usbd_status alloc_all_endpoints_genuine(struct umidi_softc *); 438 439 static usbd_status 440 alloc_all_endpoints(struct umidi_softc *sc) 441 { 442 if (UMQ_ISTYPE(sc, UMQ_TYPE_FIXED_EP)) { 443 return alloc_all_endpoints_fixed_ep(sc); 444 } else if (UMQ_ISTYPE(sc, UMQ_TYPE_YAMAHA)) { 445 return alloc_all_endpoints_yamaha(sc); 446 } else { 447 return alloc_all_endpoints_genuine(sc); 448 } 449 } 450 451 static void 452 free_all_endpoints(struct umidi_softc *sc) 453 { 454 /* assumes that all endpoints are disabled. */ 455 free(sc->sc_endpoints, M_USBDEV); 456 sc->sc_endpoints = sc->sc_out_ep = sc->sc_in_ep = NULL; 457 } 458 459 static usbd_status 460 alloc_all_endpoints_fixed_ep(struct umidi_softc *sc) 461 { 462 struct umq_fixed_ep_desc *fp; 463 usb_endpoint_descriptor_t *epd; 464 int i; 465 466 fp = umidi_get_quirk_data_from_type(sc->sc_quirk, 467 UMQ_TYPE_FIXED_EP); 468 sc->sc_out_num_jacks = 0; 469 sc->sc_in_num_jacks = 0; 470 sc->sc_out_num_endpoints = fp->num_out_ep; 471 sc->sc_in_num_endpoints = fp->num_in_ep; 472 sc->sc_endpoints = malloc(sizeof(*sc->sc_out_ep)* 473 (sc->sc_out_num_endpoints+ 474 sc->sc_in_num_endpoints), 475 M_USBDEV, M_WAITOK); 476 if (!sc->sc_endpoints) { 477 return USBD_NOMEM; 478 } 479 sc->sc_out_ep = sc->sc_out_num_endpoints ? sc->sc_endpoints : NULL; 480 sc->sc_in_ep = 481 sc->sc_in_num_endpoints ? 482 sc->sc_endpoints+sc->sc_out_num_endpoints : NULL; 483 for (i=0; i<sc->sc_out_num_endpoints; i++) { 484 epd = usbd_interface2endpoint_descriptor( 485 sc->sc_iface, 486 fp->out_ep[i].ep); 487 if (!epd) { 488 printf("%s: cannot get endpoint descriptor(out:%d)\n", 489 USBDEVNAME(sc->sc_dev), fp->out_ep[i].ep); 490 goto error; 491 } 492 if (UE_GET_XFERTYPE(epd->bmAttributes)!=UE_BULK || 493 UE_GET_DIR(epd->bEndpointAddress)!=UE_DIR_OUT) { 494 printf("%s: illegal endpoint(out:%d)\n", 495 USBDEVNAME(sc->sc_dev), fp->out_ep[i].ep); 496 goto error; 497 } 498 sc->sc_out_ep[i].sc = sc; 499 sc->sc_out_ep[i].addr = epd->bEndpointAddress; 500 sc->sc_out_ep[i].num_jacks = fp->out_ep[i].num_jacks; 501 sc->sc_out_num_jacks += fp->out_ep[i].num_jacks; 502 sc->sc_out_ep[i].num_open = 0; 503 memset(sc->sc_out_ep[i].jacks, 0, 504 sizeof(sc->sc_out_ep[i].jacks)); 505 } 506 for (i=0; i<sc->sc_in_num_endpoints; i++) { 507 epd = usbd_interface2endpoint_descriptor( 508 sc->sc_iface, 509 fp->in_ep[i].ep); 510 if (!epd) { 511 printf("%s: cannot get endpoint descriptor(in:%d)\n", 512 USBDEVNAME(sc->sc_dev), fp->in_ep[i].ep); 513 goto error; 514 } 515 if (UE_GET_XFERTYPE(epd->bmAttributes)!=UE_BULK || 516 UE_GET_DIR(epd->bEndpointAddress)!=UE_DIR_IN) { 517 printf("%s: illegal endpoint(in:%d)\n", 518 USBDEVNAME(sc->sc_dev), fp->in_ep[i].ep); 519 goto error; 520 } 521 sc->sc_in_ep[i].sc = sc; 522 sc->sc_in_ep[i].addr = epd->bEndpointAddress; 523 sc->sc_in_ep[i].num_jacks = fp->in_ep[i].num_jacks; 524 sc->sc_in_num_jacks += fp->in_ep[i].num_jacks; 525 sc->sc_in_ep[i].num_open = 0; 526 memset(sc->sc_in_ep[i].jacks, 0, 527 sizeof(sc->sc_in_ep[i].jacks)); 528 } 529 530 return USBD_NORMAL_COMPLETION; 531 error: 532 free(sc->sc_endpoints, M_USBDEV); 533 sc->sc_endpoints = NULL; 534 return USBD_INVAL; 535 } 536 537 static usbd_status 538 alloc_all_endpoints_yamaha(struct umidi_softc *sc) 539 { 540 /* This driver currently supports max 1in/1out bulk endpoints */ 541 usb_descriptor_t *desc; 542 int out_ep, in_ep, out_addr, in_addr; 543 size_t remain, descsize; 544 545 /* count jacks */ 546 desc = TO_D(usbd_get_interface_descriptor(sc->sc_iface)); 547 desc = NEXT_D(desc); /* ifd -> csifd */ 548 remain = ((size_t)UGETW(TO_CSIFD(desc)->wTotalLength) - 549 (size_t)desc->bLength); 550 desc = NEXT_D(desc); 551 552 sc->sc_out_num_jacks = sc->sc_in_num_jacks = 0; 553 out_ep = in_ep = -1; 554 555 while (remain>=sizeof(usb_descriptor_t)) { 556 descsize = desc->bLength; 557 if (descsize>remain || descsize==0) 558 break; 559 if (desc->bDescriptorType==UDESC_CS_INTERFACE && 560 remain>=UMIDI_JACK_DESCRIPTOR_SIZE) { 561 if (desc->bDescriptorSubtype==UMIDI_OUT_JACK) 562 sc->sc_out_num_jacks++; 563 else if (desc->bDescriptorSubtype==UMIDI_IN_JACK) 564 sc->sc_in_num_jacks++; 565 } else if (desc->bDescriptorType==UDESC_ENDPOINT && 566 remain>=USB_ENDPOINT_DESCRIPTOR_SIZE && 567 (UE_GET_XFERTYPE(TO_EPD(desc)->bmAttributes) 568 == UE_BULK)) { 569 if ((UE_GET_DIR(TO_EPD(desc)->bEndpointAddress) 570 ==UE_DIR_OUT) && 571 out_addr==-1) 572 out_addr = TO_EPD(desc)->bEndpointAddress; 573 else if ((UE_GET_DIR(TO_EPD(desc)->bEndpointAddress) 574 ==UE_DIR_IN) && 575 in_addr==-1) 576 in_addr = TO_EPD(desc)->bEndpointAddress; 577 } 578 579 desc = NEXT_D(desc); 580 remain-=descsize; 581 } 582 583 /* validate some parameter */ 584 if (sc->sc_out_num_jacks>UMIDI_MAX_EPJACKS) 585 sc->sc_out_num_jacks = UMIDI_MAX_EPJACKS; 586 if (sc->sc_in_num_jacks>UMIDI_MAX_EPJACKS) 587 sc->sc_in_num_jacks = UMIDI_MAX_EPJACKS; 588 if (sc->sc_out_num_jacks && out_addr!=-1) { 589 sc->sc_out_num_endpoints = 1; 590 } else { 591 sc->sc_out_num_endpoints = 0; 592 sc->sc_out_num_jacks = 0; 593 } 594 if (sc->sc_in_num_jacks && in_addr!=-1) { 595 sc->sc_in_num_endpoints = 1; 596 } else { 597 sc->sc_in_num_endpoints = 0; 598 sc->sc_in_num_jacks = 0; 599 } 600 sc->sc_endpoints = malloc(sizeof(struct umidi_endpoint)* 601 (sc->sc_out_num_endpoints+ 602 sc->sc_in_num_endpoints), 603 M_USBDEV, M_WAITOK); 604 if (!sc->sc_endpoints) 605 return USBD_NOMEM; 606 if (sc->sc_out_num_endpoints) { 607 sc->sc_out_ep = sc->sc_endpoints; 608 sc->sc_out_ep->sc = sc; 609 sc->sc_out_ep->addr = out_addr; 610 sc->sc_out_ep->num_jacks = sc->sc_out_num_jacks; 611 sc->sc_out_ep->num_open = 0; 612 memset(sc->sc_out_ep->jacks, 0, sizeof(sc->sc_out_ep->jacks)); 613 } else 614 sc->sc_out_ep = NULL; 615 616 if (sc->sc_in_num_endpoints) { 617 sc->sc_in_ep = sc->sc_endpoints+sc->sc_out_num_endpoints; 618 sc->sc_in_ep->sc = sc; 619 sc->sc_in_ep->addr = in_addr; 620 sc->sc_in_ep->num_jacks = sc->sc_in_num_jacks; 621 sc->sc_in_ep->num_open = 0; 622 memset(sc->sc_in_ep->jacks, 0, sizeof(sc->sc_in_ep->jacks)); 623 } else 624 sc->sc_in_ep = NULL; 625 626 return USBD_NORMAL_COMPLETION; 627 } 628 629 static usbd_status 630 alloc_all_endpoints_genuine(struct umidi_softc *sc) 631 { 632 usb_descriptor_t *desc; 633 int num_ep, i; 634 size_t remain, descsize; 635 struct umidi_endpoint *p, *q, *lowest, *endep, tmpep; 636 int epaddr; 637 638 desc = TO_D(usbd_get_interface_descriptor(sc->sc_iface)); 639 num_ep = TO_IFD(desc)->bNumEndpoints; 640 desc = NEXT_D(desc); /* ifd -> csifd */ 641 remain = ((size_t)UGETW(TO_CSIFD(desc)->wTotalLength) - 642 (size_t)desc->bLength); 643 desc = NEXT_D(desc); 644 645 sc->sc_endpoints = p = malloc(sizeof(struct umidi_endpoint)*num_ep, 646 M_USBDEV, M_WAITOK); 647 if (!p) 648 return USBD_NOMEM; 649 650 sc->sc_out_num_jacks = sc->sc_in_num_jacks = 0; 651 sc->sc_out_num_endpoints = sc->sc_in_num_endpoints = 0; 652 epaddr = -1; 653 654 /* get the list of endpoints for midi stream */ 655 while (remain>=sizeof(usb_descriptor_t)) { 656 descsize = desc->bLength; 657 if (descsize>remain || descsize==0) 658 break; 659 if (desc->bDescriptorType==UDESC_ENDPOINT && 660 remain>=USB_ENDPOINT_DESCRIPTOR_SIZE && 661 UE_GET_XFERTYPE(TO_EPD(desc)->bmAttributes) == UE_BULK) { 662 epaddr = TO_EPD(desc)->bEndpointAddress; 663 } else if (desc->bDescriptorType==UDESC_CS_ENDPOINT && 664 remain>=UMIDI_CS_ENDPOINT_DESCRIPTOR_SIZE && 665 epaddr!=-1) { 666 num_ep--; 667 if (num_ep>0) { 668 p->sc = sc; 669 p->addr = epaddr; 670 p->num_jacks = TO_CSEPD(desc)->bNumEmbMIDIJack; 671 if (UE_GET_DIR(epaddr)==UE_DIR_OUT) { 672 sc->sc_out_num_endpoints++; 673 sc->sc_out_num_jacks += p->num_jacks; 674 } else { 675 sc->sc_in_num_endpoints++; 676 sc->sc_in_num_jacks += p->num_jacks; 677 } 678 p++; 679 } 680 } else 681 epaddr = -1; 682 desc = NEXT_D(desc); 683 remain-=descsize; 684 } 685 686 /* sort endpoints */ 687 num_ep = sc->sc_out_num_endpoints + sc->sc_in_num_endpoints; 688 p = sc->sc_endpoints; 689 endep = p + num_ep; 690 while (p<endep) { 691 lowest = p; 692 for (q=p+1; q<endep; q++) { 693 if ((UE_GET_DIR(lowest->addr)==UE_DIR_IN && 694 UE_GET_DIR(q->addr)==UE_DIR_OUT) || 695 ((UE_GET_DIR(lowest->addr)== 696 UE_GET_DIR(q->addr)) && 697 (UE_GET_ADDR(lowest->addr)> 698 UE_GET_ADDR(q->addr)))) 699 lowest = q; 700 } 701 if (lowest != p) { 702 memcpy((void *)&tmpep, (void *)p, sizeof(tmpep)); 703 memcpy((void *)p, (void *)lowest, sizeof(tmpep)); 704 memcpy((void *)lowest, (void *)&tmpep, sizeof(tmpep)); 705 } 706 } 707 708 sc->sc_out_ep = sc->sc_out_num_endpoints ? sc->sc_endpoints : NULL; 709 sc->sc_in_ep = 710 sc->sc_in_num_endpoints ? 711 sc->sc_endpoints+sc->sc_out_num_endpoints : NULL; 712 for (i=0; i<num_ep; i++) { 713 sc->sc_endpoints[i].num_open = 0; 714 } 715 716 return USBD_NORMAL_COMPLETION; 717 } 718 719 720 /* */ 721 static usbd_status 722 alloc_all_jacks(struct umidi_softc *sc) 723 { 724 int i, j; 725 struct umidi_endpoint *ep; 726 struct umidi_jack *jack, **rjack; 727 728 /* allocate/initialize structures */ 729 sc->sc_jacks = 730 malloc(sizeof(*sc->sc_out_jacks)*(sc->sc_in_num_jacks+ 731 sc->sc_out_num_jacks), 732 M_USBDEV, M_WAITOK); 733 if (!sc->sc_jacks) 734 return USBD_NOMEM; 735 sc->sc_out_jacks = 736 sc->sc_out_num_jacks ? sc->sc_jacks : NULL; 737 sc->sc_in_jacks = 738 sc->sc_in_num_jacks ? sc->sc_jacks+sc->sc_out_num_jacks : NULL; 739 740 jack = &sc->sc_out_jacks[0]; 741 for (i=0; i<sc->sc_out_num_jacks; i++) { 742 init_packet(&jack->packet); 743 jack->cable_number = i; 744 jack->mididev = NULL; 745 jack++; 746 } 747 jack = &sc->sc_in_jacks[0]; 748 for (i=0; i<sc->sc_in_num_jacks; i++) { 749 init_packet(&jack->packet); 750 jack->cable_number = i; 751 jack->mididev = NULL; 752 jack++; 753 } 754 755 /* assign each jacks to each endpoints */ 756 jack = &sc->sc_out_jacks[0]; 757 ep = &sc->sc_out_ep[0]; 758 for (i=0; i<sc->sc_out_num_endpoints; i++) { 759 rjack = &ep->jacks[0]; 760 for (j=0; j<ep->num_jacks; j++) { 761 *rjack = jack; 762 jack->endpoint = ep; 763 jack++; 764 rjack++; 765 } 766 ep++; 767 } 768 jack = &sc->sc_in_jacks[0]; 769 ep = &sc->sc_in_ep[0]; 770 for (i=0; i<sc->sc_in_num_endpoints; i++) { 771 rjack = &ep->jacks[0]; 772 for (j=0; j<ep->num_jacks; j++) { 773 *rjack = jack; 774 jack->endpoint = ep; 775 jack++; 776 rjack++; 777 } 778 ep++; 779 } 780 781 return USBD_NORMAL_COMPLETION; 782 } 783 784 static void 785 free_all_jacks(struct umidi_softc *sc) 786 { 787 int s; 788 789 s = splaudio(); 790 if (sc->sc_out_jacks) { 791 free(sc->sc_jacks, M_USBDEV); 792 sc->sc_jacks = sc->sc_in_jacks = sc->sc_out_jacks = NULL; 793 } 794 splx(s); 795 } 796 797 static usbd_status 798 bind_jacks_to_mididev(struct umidi_softc *sc, 799 struct umidi_jack *out_jack, 800 struct umidi_jack *in_jack, 801 struct umidi_mididev *mididev) 802 { 803 if (mididev->opened || mididev->out_jack || mididev->in_jack) 804 return USBD_IN_USE; 805 806 mididev->in_jack = in_jack; 807 mididev->out_jack = out_jack; 808 if (in_jack) 809 in_jack->mididev = mididev; 810 if (out_jack) 811 out_jack->mididev = mididev; 812 813 return USBD_NORMAL_COMPLETION; 814 } 815 816 static usbd_status 817 unbind_jacks_from_mididev(struct umidi_mididev *mididev) 818 { 819 if (mididev->opened) { 820 if ((mididev->flags&FWRITE) && mididev->out_jack) 821 close_jack(mididev->out_jack); 822 if ((mididev->flags&FWRITE) && mididev->in_jack) 823 close_jack(mididev->in_jack); 824 mididev->out_jack = mididev->in_jack = NULL; 825 } 826 827 return USBD_NORMAL_COMPLETION; 828 } 829 830 static usbd_status 831 unbind_all_jacks(struct umidi_softc *sc) 832 { 833 usbd_status err; 834 int i; 835 836 if (sc->sc_mididevs) 837 for (i=0; i<sc->sc_num_mididevs; i++) { 838 err = unbind_jacks_from_mididev(&sc->sc_mididevs[i]); 839 if (err!=USBD_NORMAL_COMPLETION) 840 return err; 841 } 842 843 return USBD_NORMAL_COMPLETION; 844 } 845 846 static usbd_status 847 assign_all_jacks_automatically(struct umidi_softc *sc) 848 { 849 usbd_status err; 850 int i; 851 struct umidi_jack *out, *in; 852 853 err = 854 alloc_all_mididevs(sc, 855 max(sc->sc_out_num_jacks, sc->sc_in_num_jacks)); 856 if (err!=USBD_NORMAL_COMPLETION) 857 return err; 858 859 for (i=0; i<sc->sc_num_mididevs; i++) { 860 out = (i<sc->sc_out_num_jacks) ? &sc->sc_out_jacks[i]:NULL; 861 in = (i<sc->sc_in_num_jacks) ? &sc->sc_in_jacks[i]:NULL; 862 err = bind_jacks_to_mididev(sc, out, in, &sc->sc_mididevs[i]); 863 if (err!=USBD_NORMAL_COMPLETION) { 864 free_all_mididevs(sc); 865 return err; 866 } 867 } 868 869 return USBD_NORMAL_COMPLETION; 870 } 871 872 static usbd_status 873 open_jack(struct umidi_jack *jack) 874 { 875 return enable_an_endpoint(jack->endpoint); 876 } 877 878 static void 879 close_jack(struct umidi_jack *jack) 880 { 881 disable_an_endpoint(jack->endpoint, 0); 882 } 883 884 885 static usbd_status 886 attach_mididev(struct umidi_softc *sc, struct umidi_mididev *mididev) 887 { 888 if (mididev->sc) 889 return USBD_IN_USE; 890 891 mididev->sc = sc; 892 mididev->opened = 0; 893 mididev->dying = 0; 894 895 mididev->mdev = midi_attach_mi(&umidi_hw_if, mididev, &sc->sc_dev); 896 897 return USBD_NORMAL_COMPLETION; 898 } 899 900 static usbd_status 901 detach_mididev(struct umidi_mididev *mididev, int flags) 902 { 903 if (!mididev->sc) 904 return USBD_NO_ADDR; 905 906 if (mididev->opened) { 907 umidi_close(mididev); 908 } 909 910 mididev->iintr = NULL; 911 mididev->ointr = NULL; 912 mididev->arg = NULL; 913 914 if (mididev->mdev) 915 config_detach(mididev->mdev, flags); 916 917 mididev->sc = NULL; 918 919 return USBD_NORMAL_COMPLETION; 920 } 921 922 static usbd_status 923 deactivate_mididev(struct umidi_mididev *mididev) 924 { 925 if (!mididev->sc) 926 return USBD_NO_ADDR; 927 928 mididev->dying = 1; 929 config_deactivate(mididev->mdev); 930 931 return USBD_NORMAL_COMPLETION; 932 } 933 934 static usbd_status 935 alloc_all_mididevs(struct umidi_softc *sc, int nmidi) 936 { 937 sc->sc_num_mididevs = nmidi; 938 sc->sc_mididevs = malloc(sizeof(*sc->sc_mididevs)*nmidi, 939 M_USBDEV, M_WAITOK); 940 memset(sc->sc_mididevs, 0, sizeof(*sc->sc_mididevs)*nmidi); 941 if (!sc->sc_mididevs) 942 return USBD_NOMEM; 943 944 return USBD_NORMAL_COMPLETION; 945 } 946 947 static void 948 free_all_mididevs(struct umidi_softc *sc) 949 { 950 sc->sc_num_mididevs = 0; 951 if (sc->sc_mididevs) 952 free(sc->sc_mididevs, M_USBDEV); 953 } 954 955 static usbd_status 956 attach_all_mididevs(struct umidi_softc *sc) 957 { 958 usbd_status err; 959 int i; 960 961 if (sc->sc_mididevs) 962 for (i=0; i<sc->sc_num_mididevs; i++) { 963 err = attach_mididev(sc, &sc->sc_mididevs[i]); 964 if (err!=USBD_NORMAL_COMPLETION) 965 return err; 966 } 967 968 return USBD_NORMAL_COMPLETION; 969 } 970 971 static usbd_status 972 detach_all_mididevs(struct umidi_softc *sc, int flags) 973 { 974 usbd_status err; 975 int i; 976 977 if (sc->sc_mididevs) 978 for (i=0; i<sc->sc_num_mididevs; i++) { 979 err = detach_mididev(&sc->sc_mididevs[i], flags); 980 if (err!=USBD_NORMAL_COMPLETION) 981 return err; 982 } 983 984 return USBD_NORMAL_COMPLETION; 985 } 986 987 static usbd_status 988 deactivate_all_mididevs(struct umidi_softc *sc) 989 { 990 usbd_status err; 991 int i; 992 993 if (sc->sc_mididevs) 994 for (i=0; i<sc->sc_num_mididevs; i++) { 995 err = deactivate_mididev(&sc->sc_mididevs[i]); 996 if (err!=USBD_NORMAL_COMPLETION) 997 return err; 998 } 999 1000 return USBD_NORMAL_COMPLETION; 1001 } 1002 1003 #ifdef UMIDI_DEBUG 1004 static void 1005 dump_sc(struct umidi_softc *sc) 1006 { 1007 int i; 1008 1009 DPRINTFN(10, ("%s: dump_sc\n", USBDEVNAME(sc->sc_dev))); 1010 for (i=0; i<sc->sc_out_num_endpoints; i++) { 1011 DPRINTFN(10, ("\tout_ep(%p):\n", &sc->sc_out_ep[i])); 1012 dump_ep(&sc->sc_out_ep[i]); 1013 } 1014 for (i=0; i<sc->sc_in_num_endpoints; i++) { 1015 DPRINTFN(10, ("\tin_ep(%p):\n", &sc->sc_in_ep[i])); 1016 dump_ep(&sc->sc_in_ep[i]); 1017 } 1018 } 1019 1020 static void 1021 dump_ep(struct umidi_endpoint *ep) 1022 { 1023 int i; 1024 for (i=0; i<ep->num_jacks; i++) { 1025 DPRINTFN(10, ("\t\tjack(%p):\n", ep->jacks[i])); 1026 dump_jack(ep->jacks[i]); 1027 } 1028 } 1029 static void 1030 dump_jack(struct umidi_jack *jack) 1031 { 1032 DPRINTFN(10, ("\t\t\tep=%p, mididev=%p\n", 1033 jack->endpoint, jack->mididev)); 1034 } 1035 1036 #endif /* UMIDI_DEBUG */ 1037 1038 1039 1040 /* 1041 * MUX MIDI PACKET 1042 */ 1043 1044 static int packet_length[16] = { 1045 /*0*/ -1, 1046 /*1*/ -1, 1047 /*2*/ 2, 1048 /*3*/ 3, 1049 /*4*/ 3, 1050 /*5*/ 1, 1051 /*6*/ 2, 1052 /*7*/ 3, 1053 /*8*/ 3, 1054 /*9*/ 3, 1055 /*A*/ 3, 1056 /*B*/ 3, 1057 /*C*/ 2, 1058 /*D*/ 2, 1059 /*E*/ 3, 1060 /*F*/ 1, 1061 }; 1062 1063 static struct { 1064 int cin; 1065 packet_state_t next; 1066 } packet_0xFX[16] = { 1067 /*F0: SysEx */ { 0x04, PS_EXCL_1 }, 1068 /*F1: MTC */ { 0x02, PS_NORMAL_1OF2 }, 1069 /*F2: S.POS */ { 0x03, PS_NORMAL_1OF3 }, 1070 /*F3: S.SEL */ { 0x02, PS_NORMAL_1OF2 }, 1071 /*F4: UNDEF */ { 0x00, PS_INITIAL }, 1072 /*F5: UNDEF */ { 0x00, PS_INITIAL }, 1073 /*F6: Tune */ { 0x0F, PS_END }, 1074 /*F7: EofEx */ { 0x00, PS_INITIAL }, 1075 /*F8: Timing */ { 0x0F, PS_END }, 1076 /*F9: UNDEF */ { 0x00, PS_INITIAL }, 1077 /*FA: Start */ { 0x0F, PS_END }, 1078 /*FB: Cont */ { 0x0F, PS_END }, 1079 /*FC: Stop */ { 0x0F, PS_END }, 1080 /*FD: UNDEF */ { 0x00, PS_INITIAL }, 1081 /*FE: ActS */ { 0x0F, PS_END }, 1082 /*FF: Reset */ { 0x0F, PS_END }, 1083 }; 1084 1085 #define GET_CN(p) (((unsigned char)(p)>>4)&0x0F) 1086 #define GET_CIN(p) ((unsigned char)(p)&0x0F) 1087 #define MIX_CN_CIN(cn, cin) \ 1088 ((unsigned char)((((unsigned char)(cn)&0x0F)<<4)| \ 1089 ((unsigned char)(cin)&0x0F))) 1090 1091 static void 1092 init_packet(struct umidi_packet *packet) 1093 { 1094 memset(packet->buffer, 0, UMIDI_PACKET_SIZE); 1095 packet->state = PS_INITIAL; 1096 } 1097 1098 static void 1099 in_packet_to_mididev(struct umidi_endpoint *ep, uByte *packet) 1100 { 1101 int cn, len, i; 1102 struct umidi_jack *jack; 1103 struct umidi_mididev *mididev; 1104 1105 cn = GET_CN(packet[0]); 1106 len = packet_length[GET_CIN(packet[0])]; 1107 jack = ep->jacks[cn]; 1108 1109 if (cn>=ep->num_jacks || !jack) { 1110 DPRINTF(("%s: stray umidi packet (in): %02X %02X %02X %02X\n", 1111 USBDEVNAME(ep->sc->sc_dev), 1112 (unsigned)packet[0], 1113 (unsigned)packet[1], 1114 (unsigned)packet[2], 1115 (unsigned)packet[3])); 1116 return; 1117 } 1118 mididev = jack->mididev; 1119 if (!mididev || !mididev->opened || mididev->dying) 1120 return; 1121 DPR_PACKET(in, ep->sc, &jack->packet); 1122 if (mididev->iintr) { 1123 for (i=0; i<len; i++) { 1124 (*mididev->iintr)(mididev->arg, packet[i+1]); 1125 } 1126 } 1127 } 1128 1129 static usbd_status 1130 start_input_transfer(struct umidi_endpoint *ep) 1131 { 1132 usbd_setup_xfer(ep->xfer, ep->pipe, 1133 (usbd_private_handle)ep, 1134 ep->buffer, UMIDI_PACKET_SIZE, 1135 0, USBD_NO_TIMEOUT, in_intr); 1136 return usbd_transfer(ep->xfer); 1137 } 1138 1139 static usbd_status 1140 start_output_transfer(struct umidi_endpoint *ep) 1141 { 1142 usbd_setup_xfer(ep->xfer, ep->pipe, 1143 (usbd_private_handle)ep, 1144 ep->buffer, UMIDI_PACKET_SIZE, 1145 0, USBD_NO_TIMEOUT, out_intr); 1146 return usbd_transfer(ep->xfer); 1147 } 1148 1149 static void 1150 in_intr(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 1151 { 1152 struct umidi_endpoint *ep = (struct umidi_endpoint *)priv; 1153 1154 if (ep->sc->sc_dying) 1155 return; 1156 1157 in_packet_to_mididev(ep, ep->buffer); 1158 1159 (void)start_input_transfer(ep); 1160 } 1161 1162 static void 1163 out_intr(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 1164 { 1165 struct umidi_endpoint *ep = (struct umidi_endpoint *)priv; 1166 struct umidi_softc *sc = ep->sc; 1167 struct umidi_jack *jack; 1168 struct umidi_mididev *mididev; 1169 1170 if (sc->sc_dying) 1171 return; 1172 1173 jack = SIMPLEQ_FIRST(&ep->queue); 1174 mididev = jack->mididev; 1175 1176 SIMPLEQ_REMOVE_HEAD(&ep->queue, jack, queue); 1177 if (!SIMPLEQ_EMPTY(&ep->queue)) { 1178 memcpy(ep->buffer, 1179 SIMPLEQ_FIRST(&ep->queue)->packet.buffer, 1180 UMIDI_PACKET_SIZE); 1181 (void)start_output_transfer(ep); 1182 } 1183 if (mididev && mididev->ointr) { 1184 (*mididev->ointr)(mididev->arg); 1185 } 1186 } 1187 1188 static void 1189 out_build_packet(int cable_number, struct umidi_packet *packet, uByte in) 1190 { 1191 int cin; 1192 1193 retry: 1194 switch (packet->state) { 1195 case PS_END: 1196 case PS_INITIAL: 1197 memset(packet->buffer, 0, UMIDI_PACKET_SIZE); 1198 if (in<0x80) { 1199 /* ??? */ 1200 packet->state = PS_INITIAL; 1201 break; 1202 } 1203 if (in>=0xf0) { 1204 cin=packet_0xFX[in&0x0F].cin; 1205 packet->state=packet_0xFX[in&0x0F].next; 1206 } else { 1207 cin=(unsigned char)in>>4; 1208 switch (packet_length[cin]) { 1209 case 2: 1210 packet->state = PS_NORMAL_1OF2; 1211 break; 1212 case 3: 1213 packet->state = PS_NORMAL_1OF3; 1214 break; 1215 default: 1216 /* ??? */ 1217 packet->state = PS_INITIAL; 1218 } 1219 } 1220 packet->buffer[0] = MIX_CN_CIN(cable_number, cin); 1221 packet->buffer[1] = in; 1222 break; 1223 case PS_NORMAL_1OF3: 1224 if (in>=0x80) { /* ??? */ packet->state = PS_END; break; } 1225 packet->buffer[2] = in; 1226 packet->state = PS_NORMAL_2OF3; 1227 break; 1228 case PS_NORMAL_2OF3: 1229 if (in>=0x80) { /* ??? */ packet->state = PS_END; break; } 1230 packet->buffer[3] = in; 1231 packet->state = PS_END; 1232 break; 1233 case PS_NORMAL_1OF2: 1234 if (in>=0x80) { /* ??? */ packet->state = PS_END; break; } 1235 packet->buffer[2] = in; 1236 packet->state = PS_END; 1237 break; 1238 case PS_EXCL_0: 1239 memset(packet->buffer, 0, UMIDI_PACKET_SIZE); 1240 if (in==0xF7) { 1241 packet->buffer[0] = MIX_CN_CIN(cable_number, 0x05); 1242 packet->buffer[1] = 0xF7; 1243 packet->state = PS_END; 1244 break; 1245 } 1246 if (in>=0x80) { /* ??? */ packet->state = PS_END; break; } 1247 packet->buffer[1] = in; 1248 packet->state = PS_EXCL_1; 1249 break; 1250 case PS_EXCL_1: 1251 if (in==0xF7) { 1252 packet->buffer[0] = MIX_CN_CIN(cable_number, 0x06); 1253 packet->buffer[2] = 0xF7; 1254 packet->state = PS_END; 1255 break; 1256 } 1257 if (in>=0x80) { /* ??? */ packet->state = PS_END; break; } 1258 packet->buffer[2] = in; 1259 packet->state = PS_EXCL_2; 1260 break; 1261 case PS_EXCL_2: 1262 if (in==0xF7) { 1263 packet->buffer[0] = MIX_CN_CIN(cable_number, 0x07); 1264 packet->buffer[3] = 0xF7; 1265 packet->state = PS_END; 1266 break; 1267 } 1268 if (in>=0x80) { /* ??? */ packet->state = PS_END; break; } 1269 packet->buffer[0] = MIX_CN_CIN(cable_number, 0x04); 1270 packet->buffer[3] = in; 1271 packet->state = PS_EXCL_0; 1272 break; 1273 default: 1274 printf("umidi: ambiguous state.\n"); 1275 packet->state = PS_INITIAL; 1276 goto retry; 1277 } 1278 } 1279 1280 1281
Indexes created Thu Sep 25 16:09:42 GMT 2025