1 /* 2 * QEMU USB emulation 3 * 4 * Copyright (c) 2005 Fabrice Bellard 5 * 6 * 2008 Generic packet handler rewrite by Max Krasnyansky 7 * 8 * Permission is hereby granted, free of charge, to any person obtaining a copy 9 * of this software and associated documentation files (the "Software"), to deal 10 * in the Software without restriction, including without limitation the rights 11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 12 * copies of the Software, and to permit persons to whom the Software is 13 * furnished to do so, subject to the following conditions: 14 * 15 * The above copyright notice and this permission notice shall be included in 16 * all copies or substantial portions of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 21 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 24 * THE SOFTWARE. 25 */ 26 #include "qemu/osdep.h" 27 #include "hw/usb.h" 28 #include "qemu/iov.h" 29 #include "trace.h" 30 31 void usb_pick_speed(USBPort *port) 32 { 33 static const int speeds[] = { 34 USB_SPEED_SUPER, 35 USB_SPEED_HIGH, 36 USB_SPEED_FULL, 37 USB_SPEED_LOW, 38 }; 39 USBDevice *udev = port->dev; 40 int i; 41 42 for (i = 0; i < ARRAY_SIZE(speeds); i++) { 43 if ((udev->speedmask & (1 << speeds[i])) && 44 (port->speedmask & (1 << speeds[i]))) { 45 udev->speed = speeds[i]; 46 return; 47 } 48 } 49 } 50 51 void usb_attach(USBPort *port) 52 { 53 USBDevice *dev = port->dev; 54 55 assert(dev != NULL); 56 assert(dev->attached); 57 assert(dev->state == USB_STATE_NOTATTACHED); 58 usb_pick_speed(port); 59 port->ops->attach(port); 60 dev->state = USB_STATE_ATTACHED; 61 usb_device_handle_attach(dev); 62 } 63 64 void usb_detach(USBPort *port) 65 { 66 USBDevice *dev = port->dev; 67 68 assert(dev != NULL); 69 assert(dev->state != USB_STATE_NOTATTACHED); 70 port->ops->detach(port); 71 dev->state = USB_STATE_NOTATTACHED; 72 } 73 74 void usb_port_reset(USBPort *port) 75 { 76 USBDevice *dev = port->dev; 77 78 assert(dev != NULL); 79 usb_detach(port); 80 usb_attach(port); 81 usb_device_reset(dev); 82 } 83 84 void usb_device_reset(USBDevice *dev) 85 { 86 if (dev == NULL || !dev->attached) { 87 return; 88 } 89 usb_device_handle_reset(dev); 90 dev->remote_wakeup = 0; 91 dev->addr = 0; 92 dev->state = USB_STATE_DEFAULT; 93 } 94 95 void usb_wakeup(USBEndpoint *ep, unsigned int stream) 96 { 97 USBDevice *dev = ep->dev; 98 USBBus *bus = usb_bus_from_device(dev); 99 100 if (!phase_check(PHASE_MACHINE_READY)) { 101 /* 102 * This is machine init cold plug. No need to wakeup anyone, 103 * all devices will be reset anyway. And trying to wakeup can 104 * cause problems due to hitting uninitialized devices. 105 */ 106 return; 107 } 108 if (dev->remote_wakeup && dev->port && dev->port->ops->wakeup) { 109 dev->port->ops->wakeup(dev->port); 110 } 111 if (bus->ops->wakeup_endpoint) { 112 bus->ops->wakeup_endpoint(bus, ep, stream); 113 } 114 } 115 116 /**********************/ 117 118 /* generic USB device helpers (you are not forced to use them when 119 writing your USB device driver, but they help handling the 120 protocol) 121 */ 122 123 #define SETUP_STATE_IDLE 0 124 #define SETUP_STATE_SETUP 1 125 #define SETUP_STATE_DATA 2 126 #define SETUP_STATE_ACK 3 127 #define SETUP_STATE_PARAM 4 128 129 static void do_token_setup(USBDevice *s, USBPacket *p) 130 { 131 int request, value, index; 132 unsigned int setup_len; 133 134 if (p->iov.size != 8) { 135 p->status = USB_RET_STALL; 136 return; 137 } 138 139 usb_packet_copy(p, s->setup_buf, p->iov.size); 140 s->setup_index = 0; 141 p->actual_length = 0; 142 setup_len = (s->setup_buf[7] << 8) | s->setup_buf[6]; 143 if (setup_len > sizeof(s->data_buf)) { 144 fprintf(stderr, 145 "usb_generic_handle_packet: ctrl buffer too small (%d > %zu)\n", 146 setup_len, sizeof(s->data_buf)); 147 p->status = USB_RET_STALL; 148 return; 149 } 150 s->setup_len = setup_len; 151 152 request = (s->setup_buf[0] << 8) | s->setup_buf[1]; 153 value = (s->setup_buf[3] << 8) | s->setup_buf[2]; 154 index = (s->setup_buf[5] << 8) | s->setup_buf[4]; 155 156 if (s->setup_buf[0] & USB_DIR_IN) { 157 usb_device_handle_control(s, p, request, value, index, 158 s->setup_len, s->data_buf); 159 if (p->status == USB_RET_ASYNC) { 160 s->setup_state = SETUP_STATE_SETUP; 161 } 162 if (p->status != USB_RET_SUCCESS) { 163 return; 164 } 165 166 if (p->actual_length < s->setup_len) { 167 s->setup_len = p->actual_length; 168 } 169 s->setup_state = SETUP_STATE_DATA; 170 } else { 171 if (s->setup_len == 0) 172 s->setup_state = SETUP_STATE_ACK; 173 else 174 s->setup_state = SETUP_STATE_DATA; 175 } 176 177 p->actual_length = 8; 178 } 179 180 static void do_token_in(USBDevice *s, USBPacket *p) 181 { 182 int request, value, index; 183 184 assert(p->ep->nr == 0); 185 186 request = (s->setup_buf[0] << 8) | s->setup_buf[1]; 187 value = (s->setup_buf[3] << 8) | s->setup_buf[2]; 188 index = (s->setup_buf[5] << 8) | s->setup_buf[4]; 189 190 switch(s->setup_state) { 191 case SETUP_STATE_ACK: 192 if (!(s->setup_buf[0] & USB_DIR_IN)) { 193 usb_device_handle_control(s, p, request, value, index, 194 s->setup_len, s->data_buf); 195 if (p->status == USB_RET_ASYNC) { 196 return; 197 } 198 s->setup_state = SETUP_STATE_IDLE; 199 p->actual_length = 0; 200 } 201 break; 202 203 case SETUP_STATE_DATA: 204 if (s->setup_buf[0] & USB_DIR_IN) { 205 int len = s->setup_len - s->setup_index; 206 if (len > p->iov.size) { 207 len = p->iov.size; 208 } 209 usb_packet_copy(p, s->data_buf + s->setup_index, len); 210 s->setup_index += len; 211 if (s->setup_index >= s->setup_len) { 212 s->setup_state = SETUP_STATE_ACK; 213 } 214 return; 215 } 216 s->setup_state = SETUP_STATE_IDLE; 217 p->status = USB_RET_STALL; 218 break; 219 220 default: 221 p->status = USB_RET_STALL; 222 } 223 } 224 225 static void do_token_out(USBDevice *s, USBPacket *p) 226 { 227 assert(p->ep->nr == 0); 228 229 switch(s->setup_state) { 230 case SETUP_STATE_ACK: 231 if (s->setup_buf[0] & USB_DIR_IN) { 232 s->setup_state = SETUP_STATE_IDLE; 233 /* transfer OK */ 234 } else { 235 /* ignore additional output */ 236 } 237 break; 238 239 case SETUP_STATE_DATA: 240 if (!(s->setup_buf[0] & USB_DIR_IN)) { 241 int len = s->setup_len - s->setup_index; 242 if (len > p->iov.size) { 243 len = p->iov.size; 244 } 245 usb_packet_copy(p, s->data_buf + s->setup_index, len); 246 s->setup_index += len; 247 if (s->setup_index >= s->setup_len) { 248 s->setup_state = SETUP_STATE_ACK; 249 } 250 return; 251 } 252 s->setup_state = SETUP_STATE_IDLE; 253 p->status = USB_RET_STALL; 254 break; 255 256 default: 257 p->status = USB_RET_STALL; 258 } 259 } 260 261 static void do_parameter(USBDevice *s, USBPacket *p) 262 { 263 int i, request, value, index; 264 unsigned int setup_len; 265 266 for (i = 0; i < 8; i++) { 267 s->setup_buf[i] = p->parameter >> (i*8); 268 } 269 270 s->setup_state = SETUP_STATE_PARAM; 271 s->setup_index = 0; 272 273 request = (s->setup_buf[0] << 8) | s->setup_buf[1]; 274 value = (s->setup_buf[3] << 8) | s->setup_buf[2]; 275 index = (s->setup_buf[5] << 8) | s->setup_buf[4]; 276 277 setup_len = (s->setup_buf[7] << 8) | s->setup_buf[6]; 278 if (setup_len > sizeof(s->data_buf)) { 279 fprintf(stderr, 280 "usb_generic_handle_packet: ctrl buffer too small (%d > %zu)\n", 281 setup_len, sizeof(s->data_buf)); 282 p->status = USB_RET_STALL; 283 return; 284 } 285 s->setup_len = setup_len; 286 287 if (p->pid == USB_TOKEN_OUT) { 288 usb_packet_copy(p, s->data_buf, s->setup_len); 289 } 290 291 usb_device_handle_control(s, p, request, value, index, 292 s->setup_len, s->data_buf); 293 if (p->status == USB_RET_ASYNC) { 294 return; 295 } 296 297 if (p->actual_length < s->setup_len) { 298 s->setup_len = p->actual_length; 299 } 300 if (p->pid == USB_TOKEN_IN) { 301 p->actual_length = 0; 302 usb_packet_copy(p, s->data_buf, s->setup_len); 303 } 304 } 305 306 /* ctrl complete function for devices which use usb_generic_handle_packet and 307 may return USB_RET_ASYNC from their handle_control callback. Device code 308 which does this *must* call this function instead of the normal 309 usb_packet_complete to complete their async control packets. */ 310 void usb_generic_async_ctrl_complete(USBDevice *s, USBPacket *p) 311 { 312 if (p->status < 0) { 313 s->setup_state = SETUP_STATE_IDLE; 314 } 315 316 switch (s->setup_state) { 317 case SETUP_STATE_SETUP: 318 if (p->actual_length < s->setup_len) { 319 s->setup_len = p->actual_length; 320 } 321 s->setup_state = SETUP_STATE_DATA; 322 p->actual_length = 8; 323 break; 324 325 case SETUP_STATE_ACK: 326 s->setup_state = SETUP_STATE_IDLE; 327 p->actual_length = 0; 328 break; 329 330 case SETUP_STATE_PARAM: 331 if (p->actual_length < s->setup_len) { 332 s->setup_len = p->actual_length; 333 } 334 if (p->pid == USB_TOKEN_IN) { 335 p->actual_length = 0; 336 usb_packet_copy(p, s->data_buf, s->setup_len); 337 } 338 break; 339 340 default: 341 break; 342 } 343 usb_packet_complete(s, p); 344 } 345 346 USBDevice *usb_find_device(USBPort *port, uint8_t addr) 347 { 348 USBDevice *dev = port->dev; 349 350 if (dev == NULL || !dev->attached || dev->state != USB_STATE_DEFAULT) { 351 return NULL; 352 } 353 if (dev->addr == addr) { 354 return dev; 355 } 356 return usb_device_find_device(dev, addr); 357 } 358 359 static void usb_process_one(USBPacket *p) 360 { 361 USBDevice *dev = p->ep->dev; 362 363 /* 364 * Handlers expect status to be initialized to USB_RET_SUCCESS, but it 365 * can be USB_RET_NAK here from a previous usb_process_one() call, 366 * or USB_RET_ASYNC from going through usb_queue_one(). 367 */ 368 p->status = USB_RET_SUCCESS; 369 370 if (p->ep->nr == 0) { 371 /* control pipe */ 372 if (p->parameter) { 373 do_parameter(dev, p); 374 return; 375 } 376 switch (p->pid) { 377 case USB_TOKEN_SETUP: 378 do_token_setup(dev, p); 379 break; 380 case USB_TOKEN_IN: 381 do_token_in(dev, p); 382 break; 383 case USB_TOKEN_OUT: 384 do_token_out(dev, p); 385 break; 386 default: 387 p->status = USB_RET_STALL; 388 } 389 } else { 390 /* data pipe */ 391 usb_device_handle_data(dev, p); 392 } 393 } 394 395 static void usb_queue_one(USBPacket *p) 396 { 397 usb_packet_set_state(p, USB_PACKET_QUEUED); 398 QTAILQ_INSERT_TAIL(&p->ep->queue, p, queue); 399 p->status = USB_RET_ASYNC; 400 } 401 402 /* Hand over a packet to a device for processing. p->status == 403 USB_RET_ASYNC indicates the processing isn't finished yet, the 404 driver will call usb_packet_complete() when done processing it. */ 405 void usb_handle_packet(USBDevice *dev, USBPacket *p) 406 { 407 if (dev == NULL) { 408 p->status = USB_RET_NODEV; 409 return; 410 } 411 assert(dev == p->ep->dev); 412 assert(dev->state == USB_STATE_DEFAULT); 413 usb_packet_check_state(p, USB_PACKET_SETUP); 414 assert(p->ep != NULL); 415 416 /* Submitting a new packet clears halt */ 417 if (p->ep->halted) { 418 assert(QTAILQ_EMPTY(&p->ep->queue)); 419 p->ep->halted = false; 420 } 421 422 if (QTAILQ_EMPTY(&p->ep->queue) || p->ep->pipeline || p->stream) { 423 usb_process_one(p); 424 if (p->status == USB_RET_ASYNC) { 425 /* hcd drivers cannot handle async for isoc */ 426 assert(p->ep->type != USB_ENDPOINT_XFER_ISOC); 427 /* using async for interrupt packets breaks migration */ 428 assert(p->ep->type != USB_ENDPOINT_XFER_INT || 429 (dev->flags & (1 << USB_DEV_FLAG_IS_HOST))); 430 usb_packet_set_state(p, USB_PACKET_ASYNC); 431 QTAILQ_INSERT_TAIL(&p->ep->queue, p, queue); 432 } else if (p->status == USB_RET_ADD_TO_QUEUE) { 433 usb_queue_one(p); 434 } else { 435 /* 436 * When pipelining is enabled usb-devices must always return async, 437 * otherwise packets can complete out of order! 438 */ 439 assert(p->stream || !p->ep->pipeline || 440 QTAILQ_EMPTY(&p->ep->queue)); 441 if (p->status != USB_RET_NAK) { 442 usb_packet_set_state(p, USB_PACKET_COMPLETE); 443 } 444 } 445 } else { 446 usb_queue_one(p); 447 } 448 } 449 450 void usb_packet_complete_one(USBDevice *dev, USBPacket *p) 451 { 452 USBEndpoint *ep = p->ep; 453 454 assert(p->stream || QTAILQ_FIRST(&ep->queue) == p); 455 assert(p->status != USB_RET_ASYNC && p->status != USB_RET_NAK); 456 457 if (p->status != USB_RET_SUCCESS || 458 (p->short_not_ok && (p->actual_length < p->iov.size))) { 459 ep->halted = true; 460 } 461 usb_packet_set_state(p, USB_PACKET_COMPLETE); 462 QTAILQ_REMOVE(&ep->queue, p, queue); 463 dev->port->ops->complete(dev->port, p); 464 } 465 466 /* Notify the controller that an async packet is complete. This should only 467 be called for packets previously deferred by returning USB_RET_ASYNC from 468 handle_packet. */ 469 void usb_packet_complete(USBDevice *dev, USBPacket *p) 470 { 471 USBEndpoint *ep = p->ep; 472 473 usb_packet_check_state(p, USB_PACKET_ASYNC); 474 usb_packet_complete_one(dev, p); 475 476 while (!QTAILQ_EMPTY(&ep->queue)) { 477 p = QTAILQ_FIRST(&ep->queue); 478 if (ep->halted) { 479 /* Empty the queue on a halt */ 480 p->status = USB_RET_REMOVE_FROM_QUEUE; 481 dev->port->ops->complete(dev->port, p); 482 continue; 483 } 484 if (p->state == USB_PACKET_ASYNC) { 485 break; 486 } 487 usb_packet_check_state(p, USB_PACKET_QUEUED); 488 usb_process_one(p); 489 if (p->status == USB_RET_ASYNC) { 490 usb_packet_set_state(p, USB_PACKET_ASYNC); 491 break; 492 } 493 usb_packet_complete_one(ep->dev, p); 494 } 495 } 496 497 /* Cancel an active packet. The packed must have been deferred by 498 returning USB_RET_ASYNC from handle_packet, and not yet 499 completed. */ 500 void usb_cancel_packet(USBPacket * p) 501 { 502 bool callback = (p->state == USB_PACKET_ASYNC); 503 assert(usb_packet_is_inflight(p)); 504 usb_packet_set_state(p, USB_PACKET_CANCELED); 505 QTAILQ_REMOVE(&p->ep->queue, p, queue); 506 if (callback) { 507 usb_device_cancel_packet(p->ep->dev, p); 508 } 509 } 510 511 512 void usb_packet_init(USBPacket *p) 513 { 514 qemu_iovec_init(&p->iov, 1); 515 } 516 517 static const char *usb_packet_state_name(USBPacketState state) 518 { 519 static const char *name[] = { 520 [USB_PACKET_UNDEFINED] = "undef", 521 [USB_PACKET_SETUP] = "setup", 522 [USB_PACKET_QUEUED] = "queued", 523 [USB_PACKET_ASYNC] = "async", 524 [USB_PACKET_COMPLETE] = "complete", 525 [USB_PACKET_CANCELED] = "canceled", 526 }; 527 if (state < ARRAY_SIZE(name)) { 528 return name[state]; 529 } 530 return "INVALID"; 531 } 532 533 void usb_packet_check_state(USBPacket *p, USBPacketState expected) 534 { 535 USBDevice *dev; 536 USBBus *bus; 537 538 if (p->state == expected) { 539 return; 540 } 541 dev = p->ep->dev; 542 bus = usb_bus_from_device(dev); 543 trace_usb_packet_state_fault(bus->busnr, dev->port->path, p->ep->nr, p, 544 usb_packet_state_name(p->state), 545 usb_packet_state_name(expected)); 546 assert(!"usb packet state check failed"); 547 } 548 549 void usb_packet_set_state(USBPacket *p, USBPacketState state) 550 { 551 if (p->ep) { 552 USBDevice *dev = p->ep->dev; 553 USBBus *bus = usb_bus_from_device(dev); 554 trace_usb_packet_state_change(bus->busnr, dev->port->path, p->ep->nr, p, 555 usb_packet_state_name(p->state), 556 usb_packet_state_name(state)); 557 } else { 558 trace_usb_packet_state_change(-1, "", -1, p, 559 usb_packet_state_name(p->state), 560 usb_packet_state_name(state)); 561 } 562 p->state = state; 563 } 564 565 void usb_packet_setup(USBPacket *p, int pid, 566 USBEndpoint *ep, unsigned int stream, 567 uint64_t id, bool short_not_ok, bool int_req) 568 { 569 assert(!usb_packet_is_inflight(p)); 570 assert(p->iov.iov != NULL); 571 p->id = id; 572 p->pid = pid; 573 p->ep = ep; 574 p->stream = stream; 575 p->status = USB_RET_SUCCESS; 576 p->actual_length = 0; 577 p->parameter = 0; 578 p->short_not_ok = short_not_ok; 579 p->int_req = int_req; 580 p->combined = NULL; 581 qemu_iovec_reset(&p->iov); 582 usb_packet_set_state(p, USB_PACKET_SETUP); 583 } 584 585 void usb_packet_addbuf(USBPacket *p, void *ptr, size_t len) 586 { 587 qemu_iovec_add(&p->iov, ptr, len); 588 } 589 590 void usb_packet_copy(USBPacket *p, void *ptr, size_t bytes) 591 { 592 QEMUIOVector *iov = p->combined ? &p->combined->iov : &p->iov; 593 594 assert(p->actual_length >= 0); 595 assert(p->actual_length + bytes <= iov->size); 596 switch (p->pid) { 597 case USB_TOKEN_SETUP: 598 case USB_TOKEN_OUT: 599 iov_to_buf(iov->iov, iov->niov, p->actual_length, ptr, bytes); 600 break; 601 case USB_TOKEN_IN: 602 iov_from_buf(iov->iov, iov->niov, p->actual_length, ptr, bytes); 603 break; 604 default: 605 fprintf(stderr, "%s: invalid pid: %x\n", __func__, p->pid); 606 abort(); 607 } 608 p->actual_length += bytes; 609 } 610 611 void usb_packet_skip(USBPacket *p, size_t bytes) 612 { 613 QEMUIOVector *iov = p->combined ? &p->combined->iov : &p->iov; 614 615 assert(p->actual_length >= 0); 616 assert(p->actual_length + bytes <= iov->size); 617 if (p->pid == USB_TOKEN_IN) { 618 iov_memset(iov->iov, iov->niov, p->actual_length, 0, bytes); 619 } 620 p->actual_length += bytes; 621 } 622 623 size_t usb_packet_size(USBPacket *p) 624 { 625 return p->combined ? p->combined->iov.size : p->iov.size; 626 } 627 628 void usb_packet_cleanup(USBPacket *p) 629 { 630 assert(!usb_packet_is_inflight(p)); 631 qemu_iovec_destroy(&p->iov); 632 } 633 634 void usb_ep_reset(USBDevice *dev) 635 { 636 int ep; 637 638 dev->ep_ctl.nr = 0; 639 dev->ep_ctl.type = USB_ENDPOINT_XFER_CONTROL; 640 dev->ep_ctl.ifnum = 0; 641 dev->ep_ctl.max_packet_size = 64; 642 dev->ep_ctl.max_streams = 0; 643 dev->ep_ctl.dev = dev; 644 dev->ep_ctl.pipeline = false; 645 for (ep = 0; ep < USB_MAX_ENDPOINTS; ep++) { 646 dev->ep_in[ep].nr = ep + 1; 647 dev->ep_out[ep].nr = ep + 1; 648 dev->ep_in[ep].pid = USB_TOKEN_IN; 649 dev->ep_out[ep].pid = USB_TOKEN_OUT; 650 dev->ep_in[ep].type = USB_ENDPOINT_XFER_INVALID; 651 dev->ep_out[ep].type = USB_ENDPOINT_XFER_INVALID; 652 dev->ep_in[ep].ifnum = USB_INTERFACE_INVALID; 653 dev->ep_out[ep].ifnum = USB_INTERFACE_INVALID; 654 dev->ep_in[ep].max_packet_size = 0; 655 dev->ep_out[ep].max_packet_size = 0; 656 dev->ep_in[ep].max_streams = 0; 657 dev->ep_out[ep].max_streams = 0; 658 dev->ep_in[ep].dev = dev; 659 dev->ep_out[ep].dev = dev; 660 dev->ep_in[ep].pipeline = false; 661 dev->ep_out[ep].pipeline = false; 662 } 663 } 664 665 void usb_ep_init(USBDevice *dev) 666 { 667 int ep; 668 669 usb_ep_reset(dev); 670 QTAILQ_INIT(&dev->ep_ctl.queue); 671 for (ep = 0; ep < USB_MAX_ENDPOINTS; ep++) { 672 QTAILQ_INIT(&dev->ep_in[ep].queue); 673 QTAILQ_INIT(&dev->ep_out[ep].queue); 674 } 675 } 676 677 void usb_ep_dump(USBDevice *dev) 678 { 679 static const char *tname[] = { 680 [USB_ENDPOINT_XFER_CONTROL] = "control", 681 [USB_ENDPOINT_XFER_ISOC] = "isoc", 682 [USB_ENDPOINT_XFER_BULK] = "bulk", 683 [USB_ENDPOINT_XFER_INT] = "int", 684 }; 685 int ifnum, ep, first; 686 687 fprintf(stderr, "Device \"%s\", config %d\n", 688 dev->product_desc, dev->configuration); 689 for (ifnum = 0; ifnum < 16; ifnum++) { 690 first = 1; 691 for (ep = 0; ep < USB_MAX_ENDPOINTS; ep++) { 692 if (dev->ep_in[ep].type != USB_ENDPOINT_XFER_INVALID && 693 dev->ep_in[ep].ifnum == ifnum) { 694 if (first) { 695 first = 0; 696 fprintf(stderr, " Interface %d, alternative %d\n", 697 ifnum, dev->altsetting[ifnum]); 698 } 699 fprintf(stderr, " Endpoint %d, IN, %s, %d max\n", ep, 700 tname[dev->ep_in[ep].type], 701 dev->ep_in[ep].max_packet_size); 702 } 703 if (dev->ep_out[ep].type != USB_ENDPOINT_XFER_INVALID && 704 dev->ep_out[ep].ifnum == ifnum) { 705 if (first) { 706 first = 0; 707 fprintf(stderr, " Interface %d, alternative %d\n", 708 ifnum, dev->altsetting[ifnum]); 709 } 710 fprintf(stderr, " Endpoint %d, OUT, %s, %d max\n", ep, 711 tname[dev->ep_out[ep].type], 712 dev->ep_out[ep].max_packet_size); 713 } 714 } 715 } 716 fprintf(stderr, "--\n"); 717 } 718 719 struct USBEndpoint *usb_ep_get(USBDevice *dev, int pid, int ep) 720 { 721 struct USBEndpoint *eps; 722 723 assert(dev != NULL); 724 if (ep == 0) { 725 return &dev->ep_ctl; 726 } 727 assert(pid == USB_TOKEN_IN || pid == USB_TOKEN_OUT); 728 assert(ep > 0 && ep <= USB_MAX_ENDPOINTS); 729 eps = (pid == USB_TOKEN_IN) ? dev->ep_in : dev->ep_out; 730 return eps + ep - 1; 731 } 732 733 uint8_t usb_ep_get_type(USBDevice *dev, int pid, int ep) 734 { 735 struct USBEndpoint *uep = usb_ep_get(dev, pid, ep); 736 return uep->type; 737 } 738 739 void usb_ep_set_type(USBDevice *dev, int pid, int ep, uint8_t type) 740 { 741 struct USBEndpoint *uep = usb_ep_get(dev, pid, ep); 742 uep->type = type; 743 } 744 745 void usb_ep_set_ifnum(USBDevice *dev, int pid, int ep, uint8_t ifnum) 746 { 747 struct USBEndpoint *uep = usb_ep_get(dev, pid, ep); 748 uep->ifnum = ifnum; 749 } 750 751 void usb_ep_set_max_packet_size(USBDevice *dev, int pid, int ep, 752 uint16_t raw) 753 { 754 struct USBEndpoint *uep = usb_ep_get(dev, pid, ep); 755 int size, microframes; 756 757 size = raw & 0x7ff; 758 switch ((raw >> 11) & 3) { 759 case 1: 760 microframes = 2; 761 break; 762 case 2: 763 microframes = 3; 764 break; 765 default: 766 microframes = 1; 767 break; 768 } 769 uep->max_packet_size = size * microframes; 770 } 771 772 void usb_ep_set_max_streams(USBDevice *dev, int pid, int ep, uint8_t raw) 773 { 774 struct USBEndpoint *uep = usb_ep_get(dev, pid, ep); 775 int MaxStreams; 776 777 MaxStreams = raw & 0x1f; 778 if (MaxStreams) { 779 uep->max_streams = 1 << MaxStreams; 780 } else { 781 uep->max_streams = 0; 782 } 783 } 784 785 void usb_ep_set_halted(USBDevice *dev, int pid, int ep, bool halted) 786 { 787 struct USBEndpoint *uep = usb_ep_get(dev, pid, ep); 788 uep->halted = halted; 789 } 790 791 USBPacket *usb_ep_find_packet_by_id(USBDevice *dev, int pid, int ep, 792 uint64_t id) 793 { 794 struct USBEndpoint *uep = usb_ep_get(dev, pid, ep); 795 USBPacket *p; 796 797 QTAILQ_FOREACH(p, &uep->queue, queue) { 798 if (p->id == id) { 799 return p; 800 } 801 } 802 803 return NULL; 804 } 805