umidi.c revision 1.25.2.8
1 /* $NetBSD: umidi.c,v 1.25.2.8 2006/05/20 03:31:22 chap 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/cdefs.h> 39 __KERNEL_RCSID(0, "$NetBSD: umidi.c,v 1.25.2.8 2006/05/20 03:31:22 chap Exp $"); 40 41 #include <sys/param.h> 42 #include <sys/systm.h> 43 #include <sys/kernel.h> 44 #include <sys/malloc.h> 45 #include <sys/device.h> 46 #include <sys/ioctl.h> 47 #include <sys/conf.h> 48 #include <sys/file.h> 49 #include <sys/select.h> 50 #include <sys/proc.h> 51 #include <sys/vnode.h> 52 #include <sys/poll.h> 53 #include <sys/lock.h> 54 55 #include <dev/usb/usb.h> 56 #include <dev/usb/usbdi.h> 57 #include <dev/usb/usbdi_util.h> 58 59 #include <dev/usb/usbdevs.h> 60 #include <dev/usb/uaudioreg.h> 61 #include <dev/usb/umidireg.h> 62 #include <dev/usb/umidivar.h> 63 #include <dev/usb/umidi_quirks.h> 64 65 #include <dev/midi_if.h> 66 67 #ifdef UMIDI_DEBUG 68 #define DPRINTF(x) if (umididebug) printf x 69 #define DPRINTFN(n,x) if (umididebug >= (n)) printf x 70 int umididebug = 0; 71 #else 72 #define DPRINTF(x) 73 #define DPRINTFN(n,x) 74 #endif 75 76 77 static int umidi_open(void *, int, 78 void (*)(void *, int), void (*)(void *), void *); 79 static void umidi_close(void *); 80 static int umidi_channelmsg(void *, int, int, u_char *, int); 81 static int umidi_commonmsg(void *, int, u_char *, int); 82 static int umidi_sysex(void *, u_char *, int); 83 static int umidi_rtmsg(void *, int); 84 static void umidi_getinfo(void *, struct midi_info *); 85 86 static usbd_status alloc_pipe(struct umidi_endpoint *); 87 static void free_pipe(struct umidi_endpoint *); 88 89 static usbd_status alloc_all_endpoints(struct umidi_softc *); 90 static void free_all_endpoints(struct umidi_softc *); 91 92 static usbd_status alloc_all_jacks(struct umidi_softc *); 93 static void free_all_jacks(struct umidi_softc *); 94 static usbd_status bind_jacks_to_mididev(struct umidi_softc *, 95 struct umidi_jack *, 96 struct umidi_jack *, 97 struct umidi_mididev *); 98 static void unbind_jacks_from_mididev(struct umidi_mididev *); 99 static void unbind_all_jacks(struct umidi_softc *); 100 static usbd_status assign_all_jacks_automatically(struct umidi_softc *); 101 static usbd_status open_out_jack(struct umidi_jack *, void *, 102 void (*)(void *)); 103 static usbd_status open_in_jack(struct umidi_jack *, void *, 104 void (*)(void *, int)); 105 static void close_out_jack(struct umidi_jack *); 106 static void close_in_jack(struct umidi_jack *); 107 108 static usbd_status attach_mididev(struct umidi_softc *, 109 struct umidi_mididev *); 110 static usbd_status detach_mididev(struct umidi_mididev *, int); 111 static usbd_status deactivate_mididev(struct umidi_mididev *); 112 static usbd_status alloc_all_mididevs(struct umidi_softc *, int); 113 static void free_all_mididevs(struct umidi_softc *); 114 static usbd_status attach_all_mididevs(struct umidi_softc *); 115 static usbd_status detach_all_mididevs(struct umidi_softc *, int); 116 static usbd_status deactivate_all_mididevs(struct umidi_softc *); 117 118 #ifdef UMIDI_DEBUG 119 static void dump_sc(struct umidi_softc *); 120 static void dump_ep(struct umidi_endpoint *); 121 static void dump_jack(struct umidi_jack *); 122 #endif 123 124 static usbd_status start_input_transfer(struct umidi_endpoint *); 125 static usbd_status start_output_transfer(struct umidi_endpoint *); 126 static int out_jack_output(struct umidi_jack *, u_char *, int, int); 127 static void in_intr(usbd_xfer_handle, usbd_private_handle, usbd_status); 128 static void out_intr(usbd_xfer_handle, usbd_private_handle, usbd_status); 129 130 131 struct midi_hw_if umidi_hw_if = { 132 umidi_open, 133 umidi_close, 134 umidi_rtmsg, 135 umidi_getinfo, 136 0, /* ioctl */ 137 }; 138 139 struct midi_hw_if_ext umidi_hw_if_ext = { 140 .channel = umidi_channelmsg, 141 .common = umidi_commonmsg, 142 .sysex = umidi_sysex, 143 }; 144 145 USB_DECLARE_DRIVER(umidi); 146 147 USB_MATCH(umidi) 148 { 149 USB_MATCH_START(umidi, uaa); 150 usb_interface_descriptor_t *id; 151 152 DPRINTFN(1,("umidi_match\n")); 153 154 if (uaa->iface == NULL) 155 return UMATCH_NONE; 156 157 if (umidi_search_quirk(uaa->vendor, uaa->product, uaa->ifaceno)) 158 return UMATCH_IFACECLASS_IFACESUBCLASS; 159 160 id = usbd_get_interface_descriptor(uaa->iface); 161 if (id!=NULL && 162 id->bInterfaceClass==UICLASS_AUDIO && 163 id->bInterfaceSubClass==UISUBCLASS_MIDISTREAM) 164 return UMATCH_IFACECLASS_IFACESUBCLASS; 165 166 return UMATCH_NONE; 167 } 168 169 USB_ATTACH(umidi) 170 { 171 usbd_status err; 172 USB_ATTACH_START(umidi, sc, uaa); 173 char devinfo[1024]; 174 175 DPRINTFN(1,("umidi_attach\n")); 176 177 usbd_devinfo(uaa->device, 0, devinfo); 178 printf("\n%s: %s\n", USBDEVNAME(sc->sc_dev), devinfo); 179 180 sc->sc_iface = uaa->iface; 181 sc->sc_udev = uaa->device; 182 183 sc->sc_quirk = 184 umidi_search_quirk(uaa->vendor, uaa->product, uaa->ifaceno); 185 printf("%s: ", USBDEVNAME(sc->sc_dev)); 186 umidi_print_quirk(sc->sc_quirk); 187 188 189 err = alloc_all_endpoints(sc); 190 if (err!=USBD_NORMAL_COMPLETION) { 191 printf("%s: alloc_all_endpoints failed. (err=%d)\n", 192 USBDEVNAME(sc->sc_dev), err); 193 goto error; 194 } 195 err = alloc_all_jacks(sc); 196 if (err!=USBD_NORMAL_COMPLETION) { 197 free_all_endpoints(sc); 198 printf("%s: alloc_all_jacks failed. (err=%d)\n", 199 USBDEVNAME(sc->sc_dev), err); 200 goto error; 201 } 202 printf("%s: out=%d, in=%d\n", 203 USBDEVNAME(sc->sc_dev), 204 sc->sc_out_num_jacks, sc->sc_in_num_jacks); 205 206 err = assign_all_jacks_automatically(sc); 207 if (err!=USBD_NORMAL_COMPLETION) { 208 unbind_all_jacks(sc); 209 free_all_jacks(sc); 210 free_all_endpoints(sc); 211 printf("%s: assign_all_jacks_automatically failed. (err=%d)\n", 212 USBDEVNAME(sc->sc_dev), err); 213 goto error; 214 } 215 err = attach_all_mididevs(sc); 216 if (err!=USBD_NORMAL_COMPLETION) { 217 free_all_jacks(sc); 218 free_all_endpoints(sc); 219 printf("%s: attach_all_mididevs failed. (err=%d)\n", 220 USBDEVNAME(sc->sc_dev), err); 221 } 222 223 #ifdef UMIDI_DEBUG 224 dump_sc(sc); 225 #endif 226 227 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, 228 sc->sc_udev, USBDEV(sc->sc_dev)); 229 230 USB_ATTACH_SUCCESS_RETURN; 231 error: 232 printf("%s: disabled.\n", USBDEVNAME(sc->sc_dev)); 233 sc->sc_dying = 1; 234 USB_ATTACH_ERROR_RETURN; 235 } 236 237 int 238 umidi_activate(device_ptr_t self, enum devact act) 239 { 240 struct umidi_softc *sc = (struct umidi_softc *)self; 241 242 switch (act) { 243 case DVACT_ACTIVATE: 244 DPRINTFN(1,("umidi_activate (activate)\n")); 245 246 return EOPNOTSUPP; 247 break; 248 case DVACT_DEACTIVATE: 249 DPRINTFN(1,("umidi_activate (deactivate)\n")); 250 sc->sc_dying = 1; 251 deactivate_all_mididevs(sc); 252 break; 253 } 254 return 0; 255 } 256 257 USB_DETACH(umidi) 258 { 259 USB_DETACH_START(umidi, sc); 260 261 DPRINTFN(1,("umidi_detach\n")); 262 263 sc->sc_dying = 1; 264 detach_all_mididevs(sc, flags); 265 free_all_mididevs(sc); 266 free_all_jacks(sc); 267 free_all_endpoints(sc); 268 269 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 270 USBDEV(sc->sc_dev)); 271 272 return 0; 273 } 274 275 276 /* 277 * midi_if stuffs 278 */ 279 int 280 umidi_open(void *addr, 281 int flags, 282 void (*iintr)(void *, int), 283 void (*ointr)(void *), 284 void *arg) 285 { 286 struct umidi_mididev *mididev = addr; 287 struct umidi_softc *sc = mididev->sc; 288 usbd_status err; 289 290 DPRINTF(("umidi_open: sc=%p\n", sc)); 291 292 if (!sc) 293 return ENXIO; 294 if (mididev->opened) 295 return EBUSY; 296 if (sc->sc_dying) 297 return EIO; 298 299 mididev->opened = 1; 300 mididev->flags = flags; 301 if ((mididev->flags & FWRITE) && mididev->out_jack) { 302 err = open_out_jack(mididev->out_jack, arg, ointr); 303 if ( err != USBD_NORMAL_COMPLETION ) 304 goto bad; 305 } 306 if ((mididev->flags & FREAD) && mididev->in_jack) { 307 err = open_in_jack(mididev->in_jack, arg, iintr); 308 if ( err != USBD_NORMAL_COMPLETION 309 && err != USBD_IN_PROGRESS ) 310 goto bad; 311 } 312 313 return 0; 314 bad: 315 mididev->opened = 0; 316 DPRINTF(("umidi_open: usbd_status %d\n", err)); 317 return USBD_IN_USE == err ? EBUSY : EIO; 318 } 319 320 void 321 umidi_close(void *addr) 322 { 323 int s; 324 struct umidi_mididev *mididev = addr; 325 326 s = splusb(); 327 if ((mididev->flags & FWRITE) && mididev->out_jack) 328 close_out_jack(mididev->out_jack); 329 if ((mididev->flags & FREAD) && mididev->in_jack) 330 close_in_jack(mididev->in_jack); 331 mididev->opened = 0; 332 splx(s); 333 } 334 335 int 336 umidi_channelmsg(void *addr, int status, int channel, u_char *msg, int len) 337 { 338 struct umidi_mididev *mididev = addr; 339 340 if (!mididev->out_jack || !mididev->opened) 341 return EIO; 342 343 return out_jack_output(mididev->out_jack, msg, len, (status>>4)&0xf); 344 } 345 346 int 347 umidi_commonmsg(void *addr, int status, u_char *msg, int len) 348 { 349 struct umidi_mididev *mididev = addr; 350 int cin; 351 352 if (!mididev->out_jack || !mididev->opened) 353 return EIO; 354 355 switch ( len ) { 356 case 1: cin = 5; break; 357 case 2: cin = 2; break; 358 case 3: cin = 3; break; 359 default: return EIO; /* or gcc warns of cin uninitialized */ 360 } 361 362 return out_jack_output(mididev->out_jack, msg, len, cin); 363 } 364 365 int 366 umidi_sysex(void *addr, u_char *msg, int len) 367 { 368 struct umidi_mididev *mididev = addr; 369 int cin; 370 371 if (!mididev->out_jack || !mididev->opened) 372 return EIO; 373 374 switch ( len ) { 375 case 1: cin = 5; break; 376 case 2: cin = 6; break; 377 case 3: cin = (msg[2] == 0xf7) ? 7 : 4; break; 378 default: return EIO; /* or gcc warns of cin uninitialized */ 379 } 380 381 return out_jack_output(mididev->out_jack, msg, len, cin); 382 } 383 384 int 385 umidi_rtmsg(void *addr, int d) 386 { 387 struct umidi_mididev *mididev = addr; 388 u_char msg = d; 389 390 if (!mididev->out_jack || !mididev->opened) 391 return EIO; 392 393 return out_jack_output(mididev->out_jack, &msg, 1, 0xf); 394 } 395 396 void 397 umidi_getinfo(void *addr, struct midi_info *mi) 398 { 399 struct umidi_mididev *mididev = addr; 400 /* struct umidi_softc *sc = mididev->sc; */ 401 402 mi->name = "USB MIDI I/F"; /* XXX: model name */ 403 mi->props = MIDI_PROP_OUT_INTR; 404 if (mididev->in_jack) 405 mi->props |= MIDI_PROP_CAN_INPUT; 406 midi_register_hw_if_ext(&umidi_hw_if_ext); 407 } 408 409 410 /* 411 * each endpoint stuffs 412 */ 413 414 /* alloc/free pipe */ 415 static usbd_status 416 alloc_pipe(struct umidi_endpoint *ep) 417 { 418 struct umidi_softc *sc = ep->sc; 419 usbd_status err; 420 usb_endpoint_descriptor_t *epd; 421 422 if ( UE_DIR_OUT == UE_GET_DIR(ep->addr) ) 423 ep->buffer_size = UMIDI_PACKET_SIZE; 424 else { /* only use wMaxPacketSize on inputs (for now) */ 425 epd = usbd_get_endpoint_descriptor(sc->sc_iface, ep->addr); 426 ep->buffer_size = UGETW(epd->wMaxPacketSize); 427 ep->buffer_size -= ep->buffer_size % UMIDI_PACKET_SIZE; 428 } 429 430 DPRINTF(("%s: alloc_pipe %p, buffer size %u\n", 431 USBDEVNAME(sc->sc_dev), ep, ep->buffer_size)); 432 LIST_INIT(&ep->queue_head); 433 ep->xfer = usbd_alloc_xfer(sc->sc_udev); 434 if (ep->xfer == NULL) { 435 err = USBD_NOMEM; 436 goto quit; 437 } 438 ep->buffer = usbd_alloc_buffer(ep->xfer, ep->buffer_size); 439 if (ep->buffer == NULL) { 440 usbd_free_xfer(ep->xfer); 441 err = USBD_NOMEM; 442 goto quit; 443 } 444 err = usbd_open_pipe(sc->sc_iface, ep->addr, 0, &ep->pipe); 445 if (err) 446 usbd_free_xfer(ep->xfer); 447 quit: 448 return err; 449 } 450 451 static void 452 free_pipe(struct umidi_endpoint *ep) 453 { 454 DPRINTF(("%s: free_pipe %p\n", USBDEVNAME(ep->sc->sc_dev), ep)); 455 usbd_abort_pipe(ep->pipe); 456 usbd_close_pipe(ep->pipe); 457 usbd_free_xfer(ep->xfer); 458 } 459 460 461 /* alloc/free the array of endpoint structures */ 462 463 static usbd_status alloc_all_endpoints_fixed_ep(struct umidi_softc *); 464 static usbd_status alloc_all_endpoints_yamaha(struct umidi_softc *); 465 static usbd_status alloc_all_endpoints_genuine(struct umidi_softc *); 466 467 static usbd_status 468 alloc_all_endpoints(struct umidi_softc *sc) 469 { 470 usbd_status err; 471 struct umidi_endpoint *ep; 472 int i; 473 474 if (UMQ_ISTYPE(sc, UMQ_TYPE_FIXED_EP)) { 475 err = alloc_all_endpoints_fixed_ep(sc); 476 } else if (UMQ_ISTYPE(sc, UMQ_TYPE_YAMAHA)) { 477 err = alloc_all_endpoints_yamaha(sc); 478 } else { 479 err = alloc_all_endpoints_genuine(sc); 480 } 481 if (err!=USBD_NORMAL_COMPLETION) 482 return err; 483 484 ep = sc->sc_endpoints; 485 for (i=sc->sc_out_num_endpoints+sc->sc_in_num_endpoints; i>0; i--) { 486 err = alloc_pipe(ep++); 487 if (err!=USBD_NORMAL_COMPLETION) { 488 for (; ep!=sc->sc_endpoints; ep--) 489 free_pipe(ep-1); 490 free(sc->sc_endpoints, M_USBDEV); 491 sc->sc_endpoints = sc->sc_out_ep = sc->sc_in_ep = NULL; 492 break; 493 } 494 } 495 return err; 496 } 497 498 static void 499 free_all_endpoints(struct umidi_softc *sc) 500 { 501 int i; 502 for (i=0; i<sc->sc_in_num_endpoints+sc->sc_out_num_endpoints; i++) 503 free_pipe(&sc->sc_endpoints[i]); 504 if (sc->sc_endpoints != NULL) 505 free(sc->sc_endpoints, M_USBDEV); 506 sc->sc_endpoints = sc->sc_out_ep = sc->sc_in_ep = NULL; 507 } 508 509 static usbd_status 510 alloc_all_endpoints_fixed_ep(struct umidi_softc *sc) 511 { 512 usbd_status err; 513 struct umq_fixed_ep_desc *fp; 514 struct umidi_endpoint *ep; 515 usb_endpoint_descriptor_t *epd; 516 int i; 517 518 fp = umidi_get_quirk_data_from_type(sc->sc_quirk, 519 UMQ_TYPE_FIXED_EP); 520 sc->sc_out_num_jacks = 0; 521 sc->sc_in_num_jacks = 0; 522 sc->sc_out_num_endpoints = fp->num_out_ep; 523 sc->sc_in_num_endpoints = fp->num_in_ep; 524 sc->sc_endpoints = malloc(sizeof(*sc->sc_out_ep)* 525 (sc->sc_out_num_endpoints+ 526 sc->sc_in_num_endpoints), 527 M_USBDEV, M_WAITOK); 528 if (!sc->sc_endpoints) { 529 return USBD_NOMEM; 530 } 531 sc->sc_out_ep = sc->sc_out_num_endpoints ? sc->sc_endpoints : NULL; 532 sc->sc_in_ep = 533 sc->sc_in_num_endpoints ? 534 sc->sc_endpoints+sc->sc_out_num_endpoints : NULL; 535 536 ep = &sc->sc_out_ep[0]; 537 for (i=0; i<sc->sc_out_num_endpoints; i++) { 538 epd = usbd_interface2endpoint_descriptor( 539 sc->sc_iface, 540 fp->out_ep[i].ep); 541 if (!epd) { 542 printf("%s: cannot get endpoint descriptor(out:%d)\n", 543 USBDEVNAME(sc->sc_dev), fp->out_ep[i].ep); 544 err = USBD_INVAL; 545 goto error; 546 } 547 if (UE_GET_XFERTYPE(epd->bmAttributes)!=UE_BULK || 548 UE_GET_DIR(epd->bEndpointAddress)!=UE_DIR_OUT) { 549 printf("%s: illegal endpoint(out:%d)\n", 550 USBDEVNAME(sc->sc_dev), fp->out_ep[i].ep); 551 err = USBD_INVAL; 552 goto error; 553 } 554 ep->sc = sc; 555 ep->addr = epd->bEndpointAddress; 556 ep->num_jacks = fp->out_ep[i].num_jacks; 557 sc->sc_out_num_jacks += fp->out_ep[i].num_jacks; 558 ep->num_open = 0; 559 memset(ep->jacks, 0, sizeof(ep->jacks)); 560 /* other ep alloc subrs don't, and alloc_pipe does, anyway: */ 561 /* LIST_INIT(&ep->queue_head); */ 562 ep++; 563 } 564 ep = &sc->sc_in_ep[0]; 565 for (i=0; i<sc->sc_in_num_endpoints; i++) { 566 epd = usbd_interface2endpoint_descriptor( 567 sc->sc_iface, 568 fp->in_ep[i].ep); 569 if (!epd) { 570 printf("%s: cannot get endpoint descriptor(in:%d)\n", 571 USBDEVNAME(sc->sc_dev), fp->in_ep[i].ep); 572 err = USBD_INVAL; 573 goto error; 574 } 575 /* 576 * MIDISPORT_2X4 inputs on an interrupt rather than a bulk 577 * endpoint. The existing input logic in this driver seems 578 * to work successfully if we just stop treating an interrupt 579 * endpoint as illegal (or the in_progress status we get on 580 * the initial transfer). It does not seem necessary to 581 * actually use the interrupt flavor of alloc_pipe or make 582 * other serious rearrangements of logic. I like that. 583 */ 584 switch ( UE_GET_XFERTYPE(epd->bmAttributes) ) { 585 case UE_BULK: 586 case UE_INTERRUPT: 587 if ( UE_DIR_IN == UE_GET_DIR(epd->bEndpointAddress) ) 588 break; 589 /*FALLTHROUGH*/ 590 default: 591 printf("%s: illegal endpoint(in:%d)\n", 592 USBDEVNAME(sc->sc_dev), fp->in_ep[i].ep); 593 err = USBD_INVAL; 594 goto error; 595 } 596 597 ep->sc = sc; 598 ep->addr = epd->bEndpointAddress; 599 ep->num_jacks = fp->in_ep[i].num_jacks; 600 sc->sc_in_num_jacks += fp->in_ep[i].num_jacks; 601 ep->num_open = 0; 602 memset(ep->jacks, 0, sizeof(ep->jacks)); 603 ep++; 604 } 605 606 return USBD_NORMAL_COMPLETION; 607 error: 608 free(sc->sc_endpoints, M_USBDEV); 609 sc->sc_endpoints = NULL; 610 return err; 611 } 612 613 static usbd_status 614 alloc_all_endpoints_yamaha(struct umidi_softc *sc) 615 { 616 /* This driver currently supports max 1in/1out bulk endpoints */ 617 usb_descriptor_t *desc; 618 usb_endpoint_descriptor_t *epd; 619 int out_addr, in_addr, i; 620 int dir; 621 size_t remain, descsize; 622 623 sc->sc_out_num_jacks = sc->sc_in_num_jacks = 0; 624 out_addr = in_addr = 0; 625 626 /* detect endpoints */ 627 desc = TO_D(usbd_get_interface_descriptor(sc->sc_iface)); 628 for (i=(int)TO_IFD(desc)->bNumEndpoints-1; i>=0; i--) { 629 epd = usbd_interface2endpoint_descriptor(sc->sc_iface, i); 630 if (UE_GET_XFERTYPE(epd->bmAttributes) == UE_BULK) { 631 dir = UE_GET_DIR(epd->bEndpointAddress); 632 if (dir==UE_DIR_OUT && !out_addr) 633 out_addr = epd->bEndpointAddress; 634 else if (dir==UE_DIR_IN && !in_addr) 635 in_addr = epd->bEndpointAddress; 636 } 637 } 638 desc = NEXT_D(desc); 639 640 /* count jacks */ 641 if (!(desc->bDescriptorType==UDESC_CS_INTERFACE && 642 desc->bDescriptorSubtype==UMIDI_MS_HEADER)) 643 return USBD_INVAL; 644 remain = (size_t)UGETW(TO_CSIFD(desc)->wTotalLength) - 645 (size_t)desc->bLength; 646 desc = NEXT_D(desc); 647 648 while (remain>=sizeof(usb_descriptor_t)) { 649 descsize = desc->bLength; 650 if (descsize>remain || descsize==0) 651 break; 652 if (desc->bDescriptorType==UDESC_CS_INTERFACE && 653 remain>=UMIDI_JACK_DESCRIPTOR_SIZE) { 654 if (desc->bDescriptorSubtype==UMIDI_OUT_JACK) 655 sc->sc_out_num_jacks++; 656 else if (desc->bDescriptorSubtype==UMIDI_IN_JACK) 657 sc->sc_in_num_jacks++; 658 } 659 desc = NEXT_D(desc); 660 remain-=descsize; 661 } 662 663 /* validate some parameters */ 664 if (sc->sc_out_num_jacks>UMIDI_MAX_EPJACKS) 665 sc->sc_out_num_jacks = UMIDI_MAX_EPJACKS; 666 if (sc->sc_in_num_jacks>UMIDI_MAX_EPJACKS) 667 sc->sc_in_num_jacks = UMIDI_MAX_EPJACKS; 668 if (sc->sc_out_num_jacks && out_addr) { 669 sc->sc_out_num_endpoints = 1; 670 } else { 671 sc->sc_out_num_endpoints = 0; 672 sc->sc_out_num_jacks = 0; 673 } 674 if (sc->sc_in_num_jacks && in_addr) { 675 sc->sc_in_num_endpoints = 1; 676 } else { 677 sc->sc_in_num_endpoints = 0; 678 sc->sc_in_num_jacks = 0; 679 } 680 sc->sc_endpoints = malloc(sizeof(struct umidi_endpoint)* 681 (sc->sc_out_num_endpoints+ 682 sc->sc_in_num_endpoints), 683 M_USBDEV, M_WAITOK); 684 if (!sc->sc_endpoints) 685 return USBD_NOMEM; 686 if (sc->sc_out_num_endpoints) { 687 sc->sc_out_ep = sc->sc_endpoints; 688 sc->sc_out_ep->sc = sc; 689 sc->sc_out_ep->addr = out_addr; 690 sc->sc_out_ep->num_jacks = sc->sc_out_num_jacks; 691 sc->sc_out_ep->num_open = 0; 692 memset(sc->sc_out_ep->jacks, 0, sizeof(sc->sc_out_ep->jacks)); 693 } else 694 sc->sc_out_ep = NULL; 695 696 if (sc->sc_in_num_endpoints) { 697 sc->sc_in_ep = sc->sc_endpoints+sc->sc_out_num_endpoints; 698 sc->sc_in_ep->sc = sc; 699 sc->sc_in_ep->addr = in_addr; 700 sc->sc_in_ep->num_jacks = sc->sc_in_num_jacks; 701 sc->sc_in_ep->num_open = 0; 702 memset(sc->sc_in_ep->jacks, 0, sizeof(sc->sc_in_ep->jacks)); 703 } else 704 sc->sc_in_ep = NULL; 705 706 return USBD_NORMAL_COMPLETION; 707 } 708 709 static usbd_status 710 alloc_all_endpoints_genuine(struct umidi_softc *sc) 711 { 712 usb_interface_descriptor_t *interface_desc; 713 usb_config_descriptor_t *config_desc; 714 usb_descriptor_t *desc; 715 int num_ep; 716 size_t remain, descsize; 717 struct umidi_endpoint *p, *q, *lowest, *endep, tmpep; 718 int epaddr; 719 720 interface_desc = usbd_get_interface_descriptor(sc->sc_iface); 721 num_ep = interface_desc->bNumEndpoints; 722 sc->sc_endpoints = p = malloc(sizeof(struct umidi_endpoint) * num_ep, 723 M_USBDEV, M_WAITOK); 724 if (!p) 725 return USBD_NOMEM; 726 727 sc->sc_out_num_jacks = sc->sc_in_num_jacks = 0; 728 sc->sc_out_num_endpoints = sc->sc_in_num_endpoints = 0; 729 epaddr = -1; 730 731 /* get the list of endpoints for midi stream */ 732 config_desc = usbd_get_config_descriptor(sc->sc_udev); 733 desc = (usb_descriptor_t *) config_desc; 734 remain = (size_t)UGETW(config_desc->wTotalLength); 735 while (remain>=sizeof(usb_descriptor_t)) { 736 descsize = desc->bLength; 737 if (descsize>remain || descsize==0) 738 break; 739 if (desc->bDescriptorType==UDESC_ENDPOINT && 740 remain>=USB_ENDPOINT_DESCRIPTOR_SIZE && 741 UE_GET_XFERTYPE(TO_EPD(desc)->bmAttributes) == UE_BULK) { 742 epaddr = TO_EPD(desc)->bEndpointAddress; 743 } else if (desc->bDescriptorType==UDESC_CS_ENDPOINT && 744 remain>=UMIDI_CS_ENDPOINT_DESCRIPTOR_SIZE && 745 epaddr!=-1) { 746 if (num_ep>0) { 747 num_ep--; 748 p->sc = sc; 749 p->addr = epaddr; 750 p->num_jacks = TO_CSEPD(desc)->bNumEmbMIDIJack; 751 if (UE_GET_DIR(epaddr)==UE_DIR_OUT) { 752 sc->sc_out_num_endpoints++; 753 sc->sc_out_num_jacks += p->num_jacks; 754 } else { 755 sc->sc_in_num_endpoints++; 756 sc->sc_in_num_jacks += p->num_jacks; 757 } 758 p++; 759 } 760 } else 761 epaddr = -1; 762 desc = NEXT_D(desc); 763 remain-=descsize; 764 } 765 766 /* sort endpoints */ 767 num_ep = sc->sc_out_num_endpoints + sc->sc_in_num_endpoints; 768 p = sc->sc_endpoints; 769 endep = p + num_ep; 770 while (p<endep) { 771 lowest = p; 772 for (q=p+1; q<endep; q++) { 773 if ((UE_GET_DIR(lowest->addr)==UE_DIR_IN && 774 UE_GET_DIR(q->addr)==UE_DIR_OUT) || 775 ((UE_GET_DIR(lowest->addr)== 776 UE_GET_DIR(q->addr)) && 777 (UE_GET_ADDR(lowest->addr)> 778 UE_GET_ADDR(q->addr)))) 779 lowest = q; 780 } 781 if (lowest != p) { 782 memcpy((void *)&tmpep, (void *)p, sizeof(tmpep)); 783 memcpy((void *)p, (void *)lowest, sizeof(tmpep)); 784 memcpy((void *)lowest, (void *)&tmpep, sizeof(tmpep)); 785 } 786 p->num_open = 0; 787 p++; 788 } 789 790 sc->sc_out_ep = sc->sc_out_num_endpoints ? sc->sc_endpoints : NULL; 791 sc->sc_in_ep = 792 sc->sc_in_num_endpoints ? 793 sc->sc_endpoints+sc->sc_out_num_endpoints : NULL; 794 795 return USBD_NORMAL_COMPLETION; 796 } 797 798 799 /* 800 * jack stuffs 801 */ 802 803 static usbd_status 804 alloc_all_jacks(struct umidi_softc *sc) 805 { 806 int i, j; 807 struct umidi_endpoint *ep; 808 struct umidi_jack *jack, **rjack; 809 int cnglobal; 810 811 if (UMQ_ISTYPE(sc, UMQ_TYPE_CN_SEQ_PER_EP)) 812 cnglobal = 0; 813 else if (UMQ_ISTYPE(sc, UMQ_TYPE_CN_SEQ_GLOBAL)) 814 cnglobal = 1; 815 else { 816 /* 817 * I don't think this default is correct, but it preserves 818 * the prior behavior of the code. That's why I defined two 819 * complementary quirks. Any device for which the default 820 * behavior is wrong can be made to work by giving it an 821 * explicit quirk, and if a pattern ever develops (as I suspect 822 * it will) that a lot of otherwise standard USB MIDI devices 823 * need the CN_SEQ_PER_EP "quirk," then this default can be 824 * changed to 0, and the only devices that will break are those 825 * listing neither quirk, and they'll easily be fixed by giving 826 * them the CN_SEQ_GLOBAL quirk. 827 */ 828 cnglobal = 1; 829 } 830 831 /* allocate/initialize structures */ 832 sc->sc_jacks = 833 malloc(sizeof(*sc->sc_out_jacks)*(sc->sc_in_num_jacks+ 834 sc->sc_out_num_jacks), 835 M_USBDEV, M_WAITOK); 836 if (!sc->sc_jacks) 837 return USBD_NOMEM; 838 sc->sc_out_jacks = 839 sc->sc_out_num_jacks ? sc->sc_jacks : NULL; 840 sc->sc_in_jacks = 841 sc->sc_in_num_jacks ? sc->sc_jacks+sc->sc_out_num_jacks : NULL; 842 843 jack = &sc->sc_out_jacks[0]; 844 for (i=0; i<sc->sc_out_num_jacks; i++) { 845 jack->opened = 0; 846 jack->binded = 0; 847 jack->arg = NULL; 848 jack->u.out.intr = NULL; 849 if ( cnglobal ) 850 jack->cable_number = i; 851 jack++; 852 } 853 jack = &sc->sc_in_jacks[0]; 854 for (i=0; i<sc->sc_in_num_jacks; i++) { 855 jack->opened = 0; 856 jack->binded = 0; 857 jack->arg = NULL; 858 jack->u.in.intr = NULL; 859 if ( cnglobal ) 860 jack->cable_number = i; 861 jack++; 862 } 863 864 /* assign each jacks to each endpoints */ 865 jack = &sc->sc_out_jacks[0]; 866 ep = &sc->sc_out_ep[0]; 867 for (i=0; i<sc->sc_out_num_endpoints; i++) { 868 rjack = &ep->jacks[0]; 869 for (j=0; j<ep->num_jacks; j++) { 870 *rjack = jack; 871 jack->endpoint = ep; 872 if ( !cnglobal ) 873 jack->cable_number = j; 874 jack++; 875 rjack++; 876 } 877 ep->cn_base = ep->num_jacks ? ep->jacks[0]->cable_number : 0; 878 ep++; 879 } 880 jack = &sc->sc_in_jacks[0]; 881 ep = &sc->sc_in_ep[0]; 882 for (i=0; i<sc->sc_in_num_endpoints; i++) { 883 rjack = &ep->jacks[0]; 884 for (j=0; j<ep->num_jacks; j++) { 885 *rjack = jack; 886 jack->endpoint = ep; 887 if ( !cnglobal ) 888 jack->cable_number = j; 889 jack++; 890 rjack++; 891 } 892 ep->cn_base = ep->num_jacks ? ep->jacks[0]->cable_number : 0; 893 ep++; 894 } 895 896 return USBD_NORMAL_COMPLETION; 897 } 898 899 static void 900 free_all_jacks(struct umidi_softc *sc) 901 { 902 int s; 903 904 s = splaudio(); 905 if (sc->sc_out_jacks) { 906 free(sc->sc_jacks, M_USBDEV); 907 sc->sc_jacks = sc->sc_in_jacks = sc->sc_out_jacks = NULL; 908 } 909 splx(s); 910 } 911 912 static usbd_status 913 bind_jacks_to_mididev(struct umidi_softc *sc, 914 struct umidi_jack *out_jack, 915 struct umidi_jack *in_jack, 916 struct umidi_mididev *mididev) 917 { 918 if ((out_jack && out_jack->binded) || (in_jack && in_jack->binded)) 919 return USBD_IN_USE; 920 if (mididev->out_jack || mididev->in_jack) 921 return USBD_IN_USE; 922 923 if (out_jack) 924 out_jack->binded = 1; 925 if (in_jack) 926 in_jack->binded = 1; 927 mididev->in_jack = in_jack; 928 mididev->out_jack = out_jack; 929 930 return USBD_NORMAL_COMPLETION; 931 } 932 933 static void 934 unbind_jacks_from_mididev(struct umidi_mididev *mididev) 935 { 936 if ((mididev->flags & FWRITE) && mididev->out_jack) 937 close_out_jack(mididev->out_jack); 938 if ((mididev->flags & FREAD) && mididev->in_jack) 939 close_in_jack(mididev->in_jack); 940 941 if (mididev->out_jack) 942 mididev->out_jack->binded = 0; 943 if (mididev->in_jack) 944 mididev->in_jack->binded = 0; 945 mididev->out_jack = mididev->in_jack = NULL; 946 } 947 948 static void 949 unbind_all_jacks(struct umidi_softc *sc) 950 { 951 int i; 952 953 if (sc->sc_mididevs) 954 for (i=0; i<sc->sc_num_mididevs; i++) { 955 unbind_jacks_from_mididev(&sc->sc_mididevs[i]); 956 } 957 } 958 959 static usbd_status 960 assign_all_jacks_automatically(struct umidi_softc *sc) 961 { 962 usbd_status err; 963 int i; 964 struct umidi_jack *out, *in; 965 966 err = 967 alloc_all_mididevs(sc, 968 max(sc->sc_out_num_jacks, sc->sc_in_num_jacks)); 969 if (err!=USBD_NORMAL_COMPLETION) 970 return err; 971 972 for (i=0; i<sc->sc_num_mididevs; i++) { 973 out = (i<sc->sc_out_num_jacks) ? &sc->sc_out_jacks[i]:NULL; 974 in = (i<sc->sc_in_num_jacks) ? &sc->sc_in_jacks[i]:NULL; 975 err = bind_jacks_to_mididev(sc, out, in, &sc->sc_mididevs[i]); 976 if (err!=USBD_NORMAL_COMPLETION) { 977 free_all_mididevs(sc); 978 return err; 979 } 980 } 981 982 return USBD_NORMAL_COMPLETION; 983 } 984 985 static usbd_status 986 open_out_jack(struct umidi_jack *jack, void *arg, void (*intr)(void *)) 987 { 988 struct umidi_endpoint *ep = jack->endpoint; 989 990 if (jack->opened) 991 return USBD_IN_USE; 992 993 jack->arg = arg; 994 jack->u.out.intr = intr; 995 jack->opened = 1; 996 ep->num_open++; 997 998 return USBD_NORMAL_COMPLETION; 999 } 1000 1001 static usbd_status 1002 open_in_jack(struct umidi_jack *jack, void *arg, void (*intr)(void *, int)) 1003 { 1004 usbd_status err = USBD_NORMAL_COMPLETION; 1005 struct umidi_endpoint *ep = jack->endpoint; 1006 1007 if (jack->opened) 1008 return USBD_IN_USE; 1009 1010 jack->arg = arg; 1011 jack->u.in.intr = intr; 1012 jack->opened = 1; 1013 if (ep->num_open++==0 && UE_GET_DIR(ep->addr)==UE_DIR_IN) { 1014 err = start_input_transfer(ep); 1015 if (err != USBD_NORMAL_COMPLETION && 1016 err != USBD_IN_PROGRESS) { 1017 ep->num_open--; 1018 } 1019 } 1020 1021 return err; 1022 } 1023 1024 static void 1025 close_out_jack(struct umidi_jack *jack) 1026 { 1027 struct umidi_jack *tail; 1028 int s; 1029 1030 if (jack->opened) { 1031 s = splusb(); 1032 LIST_FOREACH(tail, 1033 &jack->endpoint->queue_head, 1034 u.out.queue_entry) 1035 if (tail == jack) { 1036 LIST_REMOVE(jack, u.out.queue_entry); 1037 break; 1038 } 1039 if (jack == jack->endpoint->queue_tail) { 1040 /* find tail */ 1041 LIST_FOREACH(tail, 1042 &jack->endpoint->queue_head, 1043 u.out.queue_entry) { 1044 if (!LIST_NEXT(tail, u.out.queue_entry)) { 1045 jack->endpoint->queue_tail = tail; 1046 } 1047 } 1048 } 1049 splx(s); 1050 jack->opened = 0; 1051 jack->endpoint->num_open--; 1052 } 1053 } 1054 1055 static void 1056 close_in_jack(struct umidi_jack *jack) 1057 { 1058 if (jack->opened) { 1059 jack->opened = 0; 1060 if (--jack->endpoint->num_open == 0) { 1061 usbd_abort_pipe(jack->endpoint->pipe); 1062 } 1063 } 1064 } 1065 1066 static usbd_status 1067 attach_mididev(struct umidi_softc *sc, struct umidi_mididev *mididev) 1068 { 1069 if (mididev->sc) 1070 return USBD_IN_USE; 1071 1072 mididev->sc = sc; 1073 1074 mididev->mdev = midi_attach_mi(&umidi_hw_if, mididev, &sc->sc_dev); 1075 1076 return USBD_NORMAL_COMPLETION; 1077 } 1078 1079 static usbd_status 1080 detach_mididev(struct umidi_mididev *mididev, int flags) 1081 { 1082 if (!mididev->sc) 1083 return USBD_NO_ADDR; 1084 1085 if (mididev->opened) { 1086 umidi_close(mididev); 1087 } 1088 unbind_jacks_from_mididev(mididev); 1089 1090 if (mididev->mdev) 1091 config_detach(mididev->mdev, flags); 1092 1093 mididev->sc = NULL; 1094 1095 return USBD_NORMAL_COMPLETION; 1096 } 1097 1098 static usbd_status 1099 deactivate_mididev(struct umidi_mididev *mididev) 1100 { 1101 if (mididev->out_jack) 1102 mididev->out_jack->binded = 0; 1103 if (mididev->in_jack) 1104 mididev->in_jack->binded = 0; 1105 config_deactivate(mididev->mdev); 1106 1107 return USBD_NORMAL_COMPLETION; 1108 } 1109 1110 static usbd_status 1111 alloc_all_mididevs(struct umidi_softc *sc, int nmidi) 1112 { 1113 sc->sc_num_mididevs = nmidi; 1114 sc->sc_mididevs = malloc(sizeof(*sc->sc_mididevs)*nmidi, 1115 M_USBDEV, M_WAITOK|M_ZERO); 1116 if (!sc->sc_mididevs) 1117 return USBD_NOMEM; 1118 1119 return USBD_NORMAL_COMPLETION; 1120 } 1121 1122 static void 1123 free_all_mididevs(struct umidi_softc *sc) 1124 { 1125 sc->sc_num_mididevs = 0; 1126 if (sc->sc_mididevs) 1127 free(sc->sc_mididevs, M_USBDEV); 1128 } 1129 1130 static usbd_status 1131 attach_all_mididevs(struct umidi_softc *sc) 1132 { 1133 usbd_status err; 1134 int i; 1135 1136 if (sc->sc_mididevs) 1137 for (i=0; i<sc->sc_num_mididevs; i++) { 1138 err = attach_mididev(sc, &sc->sc_mididevs[i]); 1139 if (err!=USBD_NORMAL_COMPLETION) 1140 return err; 1141 } 1142 1143 return USBD_NORMAL_COMPLETION; 1144 } 1145 1146 static usbd_status 1147 detach_all_mididevs(struct umidi_softc *sc, int flags) 1148 { 1149 usbd_status err; 1150 int i; 1151 1152 if (sc->sc_mididevs) 1153 for (i=0; i<sc->sc_num_mididevs; i++) { 1154 err = detach_mididev(&sc->sc_mididevs[i], flags); 1155 if (err!=USBD_NORMAL_COMPLETION) 1156 return err; 1157 } 1158 1159 return USBD_NORMAL_COMPLETION; 1160 } 1161 1162 static usbd_status 1163 deactivate_all_mididevs(struct umidi_softc *sc) 1164 { 1165 usbd_status err; 1166 int i; 1167 1168 if (sc->sc_mididevs) 1169 for (i=0; i<sc->sc_num_mididevs; i++) { 1170 err = deactivate_mididev(&sc->sc_mididevs[i]); 1171 if (err!=USBD_NORMAL_COMPLETION) 1172 return err; 1173 } 1174 1175 return USBD_NORMAL_COMPLETION; 1176 } 1177 1178 #ifdef UMIDI_DEBUG 1179 static void 1180 dump_sc(struct umidi_softc *sc) 1181 { 1182 int i; 1183 1184 DPRINTFN(10, ("%s: dump_sc\n", USBDEVNAME(sc->sc_dev))); 1185 for (i=0; i<sc->sc_out_num_endpoints; i++) { 1186 DPRINTFN(10, ("\tout_ep(%p):\n", &sc->sc_out_ep[i])); 1187 dump_ep(&sc->sc_out_ep[i]); 1188 } 1189 for (i=0; i<sc->sc_in_num_endpoints; i++) { 1190 DPRINTFN(10, ("\tin_ep(%p):\n", &sc->sc_in_ep[i])); 1191 dump_ep(&sc->sc_in_ep[i]); 1192 } 1193 } 1194 1195 static void 1196 dump_ep(struct umidi_endpoint *ep) 1197 { 1198 int i; 1199 for (i=0; i<ep->num_jacks; i++) { 1200 DPRINTFN(10, ("\t\tjack(%p):\n", ep->jacks[i])); 1201 dump_jack(ep->jacks[i]); 1202 } 1203 } 1204 static void 1205 dump_jack(struct umidi_jack *jack) 1206 { 1207 DPRINTFN(10, ("\t\t\tep=%p\n", 1208 jack->endpoint)); 1209 } 1210 1211 #endif /* UMIDI_DEBUG */ 1212 1213 1214 1215 /* 1216 * MUX MIDI PACKET 1217 */ 1218 1219 static const int packet_length[16] = { 1220 /*0*/ -1, 1221 /*1*/ -1, 1222 /*2*/ 2, 1223 /*3*/ 3, 1224 /*4*/ 3, 1225 /*5*/ 1, 1226 /*6*/ 2, 1227 /*7*/ 3, 1228 /*8*/ 3, 1229 /*9*/ 3, 1230 /*A*/ 3, 1231 /*B*/ 3, 1232 /*C*/ 2, 1233 /*D*/ 2, 1234 /*E*/ 3, 1235 /*F*/ 1, 1236 }; 1237 1238 #define GET_CN(p) (((unsigned char)(p)>>4)&0x0F) 1239 #define GET_CIN(p) ((unsigned char)(p)&0x0F) 1240 #define MIX_CN_CIN(cn, cin) \ 1241 ((unsigned char)((((unsigned char)(cn)&0x0F)<<4)| \ 1242 ((unsigned char)(cin)&0x0F))) 1243 1244 static usbd_status 1245 start_input_transfer(struct umidi_endpoint *ep) 1246 { 1247 usbd_setup_xfer(ep->xfer, ep->pipe, 1248 (usbd_private_handle)ep, 1249 ep->buffer, ep->buffer_size, 1250 USBD_SHORT_XFER_OK | USBD_NO_COPY, 1251 USBD_NO_TIMEOUT, in_intr); 1252 return usbd_transfer(ep->xfer); 1253 } 1254 1255 static usbd_status 1256 start_output_transfer(struct umidi_endpoint *ep) 1257 { 1258 usbd_setup_xfer(ep->xfer, ep->pipe, 1259 (usbd_private_handle)ep, 1260 ep->buffer, UMIDI_PACKET_SIZE, 1261 USBD_NO_COPY, USBD_NO_TIMEOUT, out_intr); 1262 return usbd_transfer(ep->xfer); 1263 } 1264 1265 #ifdef UMIDI_DEBUG 1266 #define DPR_PACKET(dir, sc, p) \ 1267 if ((unsigned char)(p)->buffer[1]!=0xFE) \ 1268 DPRINTFN(500, \ 1269 ("%s: umidi packet(" #dir "): %02X %02X %02X %02X\n", \ 1270 USBDEVNAME(sc->sc_dev), \ 1271 (unsigned char)(p)->buffer[0], \ 1272 (unsigned char)(p)->buffer[1], \ 1273 (unsigned char)(p)->buffer[2], \ 1274 (unsigned char)(p)->buffer[3])); 1275 #else 1276 #define DPR_PACKET(dir, sc, p) 1277 #endif 1278 1279 /* 1280 * A 4-byte Midiman packet superficially resembles a 4-byte USB MIDI packet 1281 * with the cable number and length in the last byte instead of the first, 1282 * but there the resemblance ends. Where a USB MIDI packet is a semantic 1283 * unit, a Midiman packet is just a wrapper for 1 to 3 bytes of raw MIDI 1284 * with a cable nybble and a length nybble (which, unlike the CIN of a 1285 * real USB MIDI packet, has no semantics at all besides the length). 1286 * A packet received from a Midiman may contain part of a MIDI message, 1287 * more than one MIDI message, or parts of more than one MIDI message. A 1288 * three-byte MIDI message may arrive in three packets of data length 1, and 1289 * running status may be used. Happily, the midi(4) driver above us will put 1290 * it all back together, so the only cost is in USB bandwidth. The device 1291 * has an easier time with what it receives from us, as we'll just take 1292 * already formed, semantically reasonable USB MIDI packets and munge them 1293 * into Midiman form. 1294 */ 1295 1296 static int 1297 out_jack_output(struct umidi_jack *out_jack, u_char *src, int len, int cin) 1298 { 1299 struct umidi_endpoint *ep = out_jack->endpoint; 1300 struct umidi_softc *sc = ep->sc; 1301 struct umidi_packet *packet = &out_jack->packet; 1302 int error; 1303 int s; 1304 1305 if (sc->sc_dying) 1306 return EIO; 1307 1308 if (!out_jack->opened) 1309 return ENODEV; /* XXX as it was, is this the right errno? */ 1310 1311 error = 0; 1312 DPRINTFN(1000, ("umidi_output: ep=%p len=%d cin=%#x\n", ep, len, cin)); 1313 1314 memset(packet->buffer, 0, UMIDI_PACKET_SIZE); 1315 if (UMQ_ISTYPE(sc, UMQ_TYPE_MIDIMAN_GARBLE)) { 1316 memcpy(packet->buffer, src, len); 1317 packet->buffer[3] = MIX_CN_CIN(out_jack->cable_number, len); 1318 } else { 1319 packet->buffer[0] = MIX_CN_CIN(out_jack->cable_number, cin); 1320 memcpy(packet->buffer+1, src, len); 1321 } 1322 1323 DPR_PACKET(out, sc, &out_jack->packet); 1324 s = splusb(); 1325 if (LIST_EMPTY(&ep->queue_head)) { 1326 memcpy(ep->buffer, out_jack->packet.buffer, UMIDI_PACKET_SIZE); 1327 start_output_transfer(ep); 1328 } 1329 if (LIST_EMPTY(&ep->queue_head)) 1330 LIST_INSERT_HEAD(&ep->queue_head, out_jack, u.out.queue_entry); 1331 else 1332 LIST_INSERT_AFTER(ep->queue_tail, out_jack, u.out.queue_entry); 1333 ep->queue_tail = out_jack; 1334 splx(s); 1335 1336 return error; 1337 } 1338 1339 static void 1340 in_intr(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 1341 { 1342 int cn, len, i, rel_cn; 1343 struct umidi_endpoint *ep = (struct umidi_endpoint *)priv; 1344 struct umidi_jack *jack; 1345 unsigned char *packet; 1346 unsigned char (*slot)[UMIDI_PACKET_SIZE]; 1347 unsigned char (*end)[UMIDI_PACKET_SIZE]; 1348 unsigned char *data; 1349 u_int32_t count; 1350 1351 if (ep->sc->sc_dying || !ep->num_open) 1352 return; 1353 1354 usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL); 1355 if ( 0 == count % UMIDI_PACKET_SIZE ) { 1356 DPRINTFN(100,("%s: input endpoint %p transfer length %u\n", 1357 USBDEVNAME(ep->sc->sc_dev), ep, count)); 1358 } else { 1359 DPRINTF(("%s: input endpoint %p odd transfer length %u\n", 1360 USBDEVNAME(ep->sc->sc_dev), ep, count)); 1361 } 1362 1363 slot = ep->buffer; 1364 end = slot + count / sizeof *slot; 1365 1366 for ( packet = *slot; slot < end; packet = *++slot ) { 1367 1368 if ( UMQ_ISTYPE(ep->sc, UMQ_TYPE_MIDIMAN_GARBLE) ) { 1369 cn = (0xf0&(packet[3]))>>4; 1370 len = 0x0f&(packet[3]); 1371 data = packet; 1372 } else { 1373 cn = GET_CN(packet[0]); 1374 len = packet_length[GET_CIN(packet[0])]; 1375 data = packet + 1; 1376 } 1377 1378 rel_cn = cn - ep->cn_base; 1379 if (0 > rel_cn || rel_cn >= ep->num_jacks 1380 || !(jack = ep->jacks[rel_cn]) || cn != jack->cable_number) { 1381 DPRINTF(("%s: stray input endpoint %p cable %d len %d: " 1382 "%02X %02X %02X (try CN_SEQ quirk?)\n", 1383 USBDEVNAME(ep->sc->sc_dev), ep, cn, len, 1384 (unsigned)data[0], 1385 (unsigned)data[1], 1386 (unsigned)data[2])); 1387 return; 1388 } 1389 1390 if (!jack->binded || !jack->opened) 1391 return; 1392 1393 DPRINTFN(500,("%s: input endpoint %p cable %d len %d: " 1394 "%02X %02X %02X\n", 1395 USBDEVNAME(ep->sc->sc_dev), ep, cn, len, 1396 (unsigned)data[0], 1397 (unsigned)data[1], 1398 (unsigned)data[2])); 1399 1400 if (jack->u.in.intr) { 1401 for (i=0; i<len; i++) { 1402 (*jack->u.in.intr)(jack->arg, data[i]); 1403 } 1404 } 1405 1406 } 1407 1408 (void)start_input_transfer(ep); 1409 } 1410 1411 static void 1412 out_intr(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 1413 { 1414 struct umidi_endpoint *ep = (struct umidi_endpoint *)priv; 1415 struct umidi_softc *sc = ep->sc; 1416 struct umidi_jack *jack; 1417 1418 if (sc->sc_dying || !ep->num_open) 1419 return; 1420 1421 jack = LIST_FIRST(&ep->queue_head); 1422 if (jack && jack->opened) { 1423 LIST_REMOVE(jack, u.out.queue_entry); 1424 if (!LIST_EMPTY(&ep->queue_head)) { 1425 memcpy(ep->buffer, 1426 LIST_FIRST(&ep->queue_head)->packet.buffer, 1427 UMIDI_PACKET_SIZE); 1428 (void)start_output_transfer(ep); 1429 } 1430 if (jack->u.out.intr) { 1431 (*jack->u.out.intr)(jack->arg); 1432 } 1433 } 1434 } 1435
Indexes created Thu Oct 02 14:10:14 GMT 2025