1 /* 2 * USB UHCI controller emulation 3 * 4 * Copyright (c) 2005 Fabrice Bellard 5 * 6 * Copyright (c) 2008 Max Krasnyansky 7 * Magor rewrite of the UHCI data structures parser and frame processor 8 * Support for fully async operation and multiple outstanding transactions 9 * 10 * Permission is hereby granted, free of charge, to any person obtaining a copy 11 * of this software and associated documentation files (the "Software"), to deal 12 * in the Software without restriction, including without limitation the rights 13 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 14 * copies of the Software, and to permit persons to whom the Software is 15 * furnished to do so, subject to the following conditions: 16 * 17 * The above copyright notice and this permission notice shall be included in 18 * all copies or substantial portions of the Software. 19 * 20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 21 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 23 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 24 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 25 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 26 * THE SOFTWARE. 27 */ 28 #include "hw/hw.h" 29 #include "hw/usb.h" 30 #include "hw/usb/uhci-regs.h" 31 #include "hw/pci/pci.h" 32 #include "qemu/timer.h" 33 #include "qemu/iov.h" 34 #include "sysemu/dma.h" 35 #include "trace.h" 36 #include "qemu/main-loop.h" 37 38 //#define DEBUG 39 //#define DEBUG_DUMP_DATA 40 41 #define FRAME_TIMER_FREQ 1000 42 43 #define FRAME_MAX_LOOPS 256 44 45 /* Must be large enough to handle 10 frame delay for initial isoc requests */ 46 #define QH_VALID 32 47 48 #define MAX_FRAMES_PER_TICK (QH_VALID / 2) 49 50 #define NB_PORTS 2 51 52 enum { 53 TD_RESULT_STOP_FRAME = 10, 54 TD_RESULT_COMPLETE, 55 TD_RESULT_NEXT_QH, 56 TD_RESULT_ASYNC_START, 57 TD_RESULT_ASYNC_CONT, 58 }; 59 60 typedef struct UHCIState UHCIState; 61 typedef struct UHCIAsync UHCIAsync; 62 typedef struct UHCIQueue UHCIQueue; 63 typedef struct UHCIInfo UHCIInfo; 64 typedef struct UHCIPCIDeviceClass UHCIPCIDeviceClass; 65 66 struct UHCIInfo { 67 const char *name; 68 uint16_t vendor_id; 69 uint16_t device_id; 70 uint8_t revision; 71 uint8_t irq_pin; 72 int (*initfn)(PCIDevice *dev); 73 bool unplug; 74 }; 75 76 struct UHCIPCIDeviceClass { 77 PCIDeviceClass parent_class; 78 UHCIInfo info; 79 }; 80 81 /* 82 * Pending async transaction. 83 * 'packet' must be the first field because completion 84 * handler does "(UHCIAsync *) pkt" cast. 85 */ 86 87 struct UHCIAsync { 88 USBPacket packet; 89 uint8_t static_buf[64]; /* 64 bytes is enough, except for isoc packets */ 90 uint8_t *buf; 91 UHCIQueue *queue; 92 QTAILQ_ENTRY(UHCIAsync) next; 93 uint32_t td_addr; 94 uint8_t done; 95 }; 96 97 struct UHCIQueue { 98 uint32_t qh_addr; 99 uint32_t token; 100 UHCIState *uhci; 101 USBEndpoint *ep; 102 QTAILQ_ENTRY(UHCIQueue) next; 103 QTAILQ_HEAD(asyncs_head, UHCIAsync) asyncs; 104 int8_t valid; 105 }; 106 107 typedef struct UHCIPort { 108 USBPort port; 109 uint16_t ctrl; 110 } UHCIPort; 111 112 struct UHCIState { 113 PCIDevice dev; 114 MemoryRegion io_bar; 115 USBBus bus; /* Note unused when we're a companion controller */ 116 uint16_t cmd; /* cmd register */ 117 uint16_t status; 118 uint16_t intr; /* interrupt enable register */ 119 uint16_t frnum; /* frame number */ 120 uint32_t fl_base_addr; /* frame list base address */ 121 uint8_t sof_timing; 122 uint8_t status2; /* bit 0 and 1 are used to generate UHCI_STS_USBINT */ 123 int64_t expire_time; 124 QEMUTimer *frame_timer; 125 QEMUBH *bh; 126 uint32_t frame_bytes; 127 uint32_t frame_bandwidth; 128 bool completions_only; 129 UHCIPort ports[NB_PORTS]; 130 131 /* Interrupts that should be raised at the end of the current frame. */ 132 uint32_t pending_int_mask; 133 134 /* Active packets */ 135 QTAILQ_HEAD(, UHCIQueue) queues; 136 uint8_t num_ports_vmstate; 137 138 /* Properties */ 139 char *masterbus; 140 uint32_t firstport; 141 uint32_t maxframes; 142 }; 143 144 typedef struct UHCI_TD { 145 uint32_t link; 146 uint32_t ctrl; /* see TD_CTRL_xxx */ 147 uint32_t token; 148 uint32_t buffer; 149 } UHCI_TD; 150 151 typedef struct UHCI_QH { 152 uint32_t link; 153 uint32_t el_link; 154 } UHCI_QH; 155 156 static void uhci_async_cancel(UHCIAsync *async); 157 static void uhci_queue_fill(UHCIQueue *q, UHCI_TD *td); 158 static void uhci_resume(void *opaque); 159 160 static inline int32_t uhci_queue_token(UHCI_TD *td) 161 { 162 if ((td->token & (0xf << 15)) == 0) { 163 /* ctrl ep, cover ep and dev, not pid! */ 164 return td->token & 0x7ff00; 165 } else { 166 /* covers ep, dev, pid -> identifies the endpoint */ 167 return td->token & 0x7ffff; 168 } 169 } 170 171 static UHCIQueue *uhci_queue_new(UHCIState *s, uint32_t qh_addr, UHCI_TD *td, 172 USBEndpoint *ep) 173 { 174 UHCIQueue *queue; 175 176 queue = g_new0(UHCIQueue, 1); 177 queue->uhci = s; 178 queue->qh_addr = qh_addr; 179 queue->token = uhci_queue_token(td); 180 queue->ep = ep; 181 QTAILQ_INIT(&queue->asyncs); 182 QTAILQ_INSERT_HEAD(&s->queues, queue, next); 183 queue->valid = QH_VALID; 184 trace_usb_uhci_queue_add(queue->token); 185 return queue; 186 } 187 188 static void uhci_queue_free(UHCIQueue *queue, const char *reason) 189 { 190 UHCIState *s = queue->uhci; 191 UHCIAsync *async; 192 193 while (!QTAILQ_EMPTY(&queue->asyncs)) { 194 async = QTAILQ_FIRST(&queue->asyncs); 195 uhci_async_cancel(async); 196 } 197 usb_device_ep_stopped(queue->ep->dev, queue->ep); 198 199 trace_usb_uhci_queue_del(queue->token, reason); 200 QTAILQ_REMOVE(&s->queues, queue, next); 201 g_free(queue); 202 } 203 204 static UHCIQueue *uhci_queue_find(UHCIState *s, UHCI_TD *td) 205 { 206 uint32_t token = uhci_queue_token(td); 207 UHCIQueue *queue; 208 209 QTAILQ_FOREACH(queue, &s->queues, next) { 210 if (queue->token == token) { 211 return queue; 212 } 213 } 214 return NULL; 215 } 216 217 static bool uhci_queue_verify(UHCIQueue *queue, uint32_t qh_addr, UHCI_TD *td, 218 uint32_t td_addr, bool queuing) 219 { 220 UHCIAsync *first = QTAILQ_FIRST(&queue->asyncs); 221 uint32_t queue_token_addr = (queue->token >> 8) & 0x7f; 222 223 return queue->qh_addr == qh_addr && 224 queue->token == uhci_queue_token(td) && 225 queue_token_addr == queue->ep->dev->addr && 226 (queuing || !(td->ctrl & TD_CTRL_ACTIVE) || first == NULL || 227 first->td_addr == td_addr); 228 } 229 230 static UHCIAsync *uhci_async_alloc(UHCIQueue *queue, uint32_t td_addr) 231 { 232 UHCIAsync *async = g_new0(UHCIAsync, 1); 233 234 async->queue = queue; 235 async->td_addr = td_addr; 236 usb_packet_init(&async->packet); 237 trace_usb_uhci_packet_add(async->queue->token, async->td_addr); 238 239 return async; 240 } 241 242 static void uhci_async_free(UHCIAsync *async) 243 { 244 trace_usb_uhci_packet_del(async->queue->token, async->td_addr); 245 usb_packet_cleanup(&async->packet); 246 if (async->buf != async->static_buf) { 247 g_free(async->buf); 248 } 249 g_free(async); 250 } 251 252 static void uhci_async_link(UHCIAsync *async) 253 { 254 UHCIQueue *queue = async->queue; 255 QTAILQ_INSERT_TAIL(&queue->asyncs, async, next); 256 trace_usb_uhci_packet_link_async(async->queue->token, async->td_addr); 257 } 258 259 static void uhci_async_unlink(UHCIAsync *async) 260 { 261 UHCIQueue *queue = async->queue; 262 QTAILQ_REMOVE(&queue->asyncs, async, next); 263 trace_usb_uhci_packet_unlink_async(async->queue->token, async->td_addr); 264 } 265 266 static void uhci_async_cancel(UHCIAsync *async) 267 { 268 uhci_async_unlink(async); 269 trace_usb_uhci_packet_cancel(async->queue->token, async->td_addr, 270 async->done); 271 if (!async->done) 272 usb_cancel_packet(&async->packet); 273 uhci_async_free(async); 274 } 275 276 /* 277 * Mark all outstanding async packets as invalid. 278 * This is used for canceling them when TDs are removed by the HCD. 279 */ 280 static void uhci_async_validate_begin(UHCIState *s) 281 { 282 UHCIQueue *queue; 283 284 QTAILQ_FOREACH(queue, &s->queues, next) { 285 queue->valid--; 286 } 287 } 288 289 /* 290 * Cancel async packets that are no longer valid 291 */ 292 static void uhci_async_validate_end(UHCIState *s) 293 { 294 UHCIQueue *queue, *n; 295 296 QTAILQ_FOREACH_SAFE(queue, &s->queues, next, n) { 297 if (!queue->valid) { 298 uhci_queue_free(queue, "validate-end"); 299 } 300 } 301 } 302 303 static void uhci_async_cancel_device(UHCIState *s, USBDevice *dev) 304 { 305 UHCIQueue *queue, *n; 306 307 QTAILQ_FOREACH_SAFE(queue, &s->queues, next, n) { 308 if (queue->ep->dev == dev) { 309 uhci_queue_free(queue, "cancel-device"); 310 } 311 } 312 } 313 314 static void uhci_async_cancel_all(UHCIState *s) 315 { 316 UHCIQueue *queue, *nq; 317 318 QTAILQ_FOREACH_SAFE(queue, &s->queues, next, nq) { 319 uhci_queue_free(queue, "cancel-all"); 320 } 321 } 322 323 static UHCIAsync *uhci_async_find_td(UHCIState *s, uint32_t td_addr) 324 { 325 UHCIQueue *queue; 326 UHCIAsync *async; 327 328 QTAILQ_FOREACH(queue, &s->queues, next) { 329 QTAILQ_FOREACH(async, &queue->asyncs, next) { 330 if (async->td_addr == td_addr) { 331 return async; 332 } 333 } 334 } 335 return NULL; 336 } 337 338 static void uhci_update_irq(UHCIState *s) 339 { 340 int level; 341 if (((s->status2 & 1) && (s->intr & (1 << 2))) || 342 ((s->status2 & 2) && (s->intr & (1 << 3))) || 343 ((s->status & UHCI_STS_USBERR) && (s->intr & (1 << 0))) || 344 ((s->status & UHCI_STS_RD) && (s->intr & (1 << 1))) || 345 (s->status & UHCI_STS_HSERR) || 346 (s->status & UHCI_STS_HCPERR)) { 347 level = 1; 348 } else { 349 level = 0; 350 } 351 pci_set_irq(&s->dev, level); 352 } 353 354 static void uhci_reset(void *opaque) 355 { 356 UHCIState *s = opaque; 357 uint8_t *pci_conf; 358 int i; 359 UHCIPort *port; 360 361 trace_usb_uhci_reset(); 362 363 pci_conf = s->dev.config; 364 365 pci_conf[0x6a] = 0x01; /* usb clock */ 366 pci_conf[0x6b] = 0x00; 367 s->cmd = 0; 368 s->status = 0; 369 s->status2 = 0; 370 s->intr = 0; 371 s->fl_base_addr = 0; 372 s->sof_timing = 64; 373 374 for(i = 0; i < NB_PORTS; i++) { 375 port = &s->ports[i]; 376 port->ctrl = 0x0080; 377 if (port->port.dev && port->port.dev->attached) { 378 usb_port_reset(&port->port); 379 } 380 } 381 382 uhci_async_cancel_all(s); 383 qemu_bh_cancel(s->bh); 384 uhci_update_irq(s); 385 } 386 387 static const VMStateDescription vmstate_uhci_port = { 388 .name = "uhci port", 389 .version_id = 1, 390 .minimum_version_id = 1, 391 .fields = (VMStateField[]) { 392 VMSTATE_UINT16(ctrl, UHCIPort), 393 VMSTATE_END_OF_LIST() 394 } 395 }; 396 397 static int uhci_post_load(void *opaque, int version_id) 398 { 399 UHCIState *s = opaque; 400 401 if (version_id < 2) { 402 s->expire_time = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + 403 (get_ticks_per_sec() / FRAME_TIMER_FREQ); 404 } 405 return 0; 406 } 407 408 static const VMStateDescription vmstate_uhci = { 409 .name = "uhci", 410 .version_id = 3, 411 .minimum_version_id = 1, 412 .post_load = uhci_post_load, 413 .fields = (VMStateField[]) { 414 VMSTATE_PCI_DEVICE(dev, UHCIState), 415 VMSTATE_UINT8_EQUAL(num_ports_vmstate, UHCIState), 416 VMSTATE_STRUCT_ARRAY(ports, UHCIState, NB_PORTS, 1, 417 vmstate_uhci_port, UHCIPort), 418 VMSTATE_UINT16(cmd, UHCIState), 419 VMSTATE_UINT16(status, UHCIState), 420 VMSTATE_UINT16(intr, UHCIState), 421 VMSTATE_UINT16(frnum, UHCIState), 422 VMSTATE_UINT32(fl_base_addr, UHCIState), 423 VMSTATE_UINT8(sof_timing, UHCIState), 424 VMSTATE_UINT8(status2, UHCIState), 425 VMSTATE_TIMER(frame_timer, UHCIState), 426 VMSTATE_INT64_V(expire_time, UHCIState, 2), 427 VMSTATE_UINT32_V(pending_int_mask, UHCIState, 3), 428 VMSTATE_END_OF_LIST() 429 } 430 }; 431 432 static void uhci_port_write(void *opaque, hwaddr addr, 433 uint64_t val, unsigned size) 434 { 435 UHCIState *s = opaque; 436 437 trace_usb_uhci_mmio_writew(addr, val); 438 439 switch(addr) { 440 case 0x00: 441 if ((val & UHCI_CMD_RS) && !(s->cmd & UHCI_CMD_RS)) { 442 /* start frame processing */ 443 trace_usb_uhci_schedule_start(); 444 s->expire_time = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + 445 (get_ticks_per_sec() / FRAME_TIMER_FREQ); 446 timer_mod(s->frame_timer, s->expire_time); 447 s->status &= ~UHCI_STS_HCHALTED; 448 } else if (!(val & UHCI_CMD_RS)) { 449 s->status |= UHCI_STS_HCHALTED; 450 } 451 if (val & UHCI_CMD_GRESET) { 452 UHCIPort *port; 453 int i; 454 455 /* send reset on the USB bus */ 456 for(i = 0; i < NB_PORTS; i++) { 457 port = &s->ports[i]; 458 usb_device_reset(port->port.dev); 459 } 460 uhci_reset(s); 461 return; 462 } 463 if (val & UHCI_CMD_HCRESET) { 464 uhci_reset(s); 465 return; 466 } 467 s->cmd = val; 468 if (val & UHCI_CMD_EGSM) { 469 if ((s->ports[0].ctrl & UHCI_PORT_RD) || 470 (s->ports[1].ctrl & UHCI_PORT_RD)) { 471 uhci_resume(s); 472 } 473 } 474 break; 475 case 0x02: 476 s->status &= ~val; 477 /* XXX: the chip spec is not coherent, so we add a hidden 478 register to distinguish between IOC and SPD */ 479 if (val & UHCI_STS_USBINT) 480 s->status2 = 0; 481 uhci_update_irq(s); 482 break; 483 case 0x04: 484 s->intr = val; 485 uhci_update_irq(s); 486 break; 487 case 0x06: 488 if (s->status & UHCI_STS_HCHALTED) 489 s->frnum = val & 0x7ff; 490 break; 491 case 0x08: 492 s->fl_base_addr &= 0xffff0000; 493 s->fl_base_addr |= val & ~0xfff; 494 break; 495 case 0x0a: 496 s->fl_base_addr &= 0x0000ffff; 497 s->fl_base_addr |= (val << 16); 498 break; 499 case 0x0c: 500 s->sof_timing = val & 0xff; 501 break; 502 case 0x10 ... 0x1f: 503 { 504 UHCIPort *port; 505 USBDevice *dev; 506 int n; 507 508 n = (addr >> 1) & 7; 509 if (n >= NB_PORTS) 510 return; 511 port = &s->ports[n]; 512 dev = port->port.dev; 513 if (dev && dev->attached) { 514 /* port reset */ 515 if ( (val & UHCI_PORT_RESET) && 516 !(port->ctrl & UHCI_PORT_RESET) ) { 517 usb_device_reset(dev); 518 } 519 } 520 port->ctrl &= UHCI_PORT_READ_ONLY; 521 /* enabled may only be set if a device is connected */ 522 if (!(port->ctrl & UHCI_PORT_CCS)) { 523 val &= ~UHCI_PORT_EN; 524 } 525 port->ctrl |= (val & ~UHCI_PORT_READ_ONLY); 526 /* some bits are reset when a '1' is written to them */ 527 port->ctrl &= ~(val & UHCI_PORT_WRITE_CLEAR); 528 } 529 break; 530 } 531 } 532 533 static uint64_t uhci_port_read(void *opaque, hwaddr addr, unsigned size) 534 { 535 UHCIState *s = opaque; 536 uint32_t val; 537 538 switch(addr) { 539 case 0x00: 540 val = s->cmd; 541 break; 542 case 0x02: 543 val = s->status; 544 break; 545 case 0x04: 546 val = s->intr; 547 break; 548 case 0x06: 549 val = s->frnum; 550 break; 551 case 0x08: 552 val = s->fl_base_addr & 0xffff; 553 break; 554 case 0x0a: 555 val = (s->fl_base_addr >> 16) & 0xffff; 556 break; 557 case 0x0c: 558 val = s->sof_timing; 559 break; 560 case 0x10 ... 0x1f: 561 { 562 UHCIPort *port; 563 int n; 564 n = (addr >> 1) & 7; 565 if (n >= NB_PORTS) 566 goto read_default; 567 port = &s->ports[n]; 568 val = port->ctrl; 569 } 570 break; 571 default: 572 read_default: 573 val = 0xff7f; /* disabled port */ 574 break; 575 } 576 577 trace_usb_uhci_mmio_readw(addr, val); 578 579 return val; 580 } 581 582 /* signal resume if controller suspended */ 583 static void uhci_resume (void *opaque) 584 { 585 UHCIState *s = (UHCIState *)opaque; 586 587 if (!s) 588 return; 589 590 if (s->cmd & UHCI_CMD_EGSM) { 591 s->cmd |= UHCI_CMD_FGR; 592 s->status |= UHCI_STS_RD; 593 uhci_update_irq(s); 594 } 595 } 596 597 static void uhci_attach(USBPort *port1) 598 { 599 UHCIState *s = port1->opaque; 600 UHCIPort *port = &s->ports[port1->index]; 601 602 /* set connect status */ 603 port->ctrl |= UHCI_PORT_CCS | UHCI_PORT_CSC; 604 605 /* update speed */ 606 if (port->port.dev->speed == USB_SPEED_LOW) { 607 port->ctrl |= UHCI_PORT_LSDA; 608 } else { 609 port->ctrl &= ~UHCI_PORT_LSDA; 610 } 611 612 uhci_resume(s); 613 } 614 615 static void uhci_detach(USBPort *port1) 616 { 617 UHCIState *s = port1->opaque; 618 UHCIPort *port = &s->ports[port1->index]; 619 620 uhci_async_cancel_device(s, port1->dev); 621 622 /* set connect status */ 623 if (port->ctrl & UHCI_PORT_CCS) { 624 port->ctrl &= ~UHCI_PORT_CCS; 625 port->ctrl |= UHCI_PORT_CSC; 626 } 627 /* disable port */ 628 if (port->ctrl & UHCI_PORT_EN) { 629 port->ctrl &= ~UHCI_PORT_EN; 630 port->ctrl |= UHCI_PORT_ENC; 631 } 632 633 uhci_resume(s); 634 } 635 636 static void uhci_child_detach(USBPort *port1, USBDevice *child) 637 { 638 UHCIState *s = port1->opaque; 639 640 uhci_async_cancel_device(s, child); 641 } 642 643 static void uhci_wakeup(USBPort *port1) 644 { 645 UHCIState *s = port1->opaque; 646 UHCIPort *port = &s->ports[port1->index]; 647 648 if (port->ctrl & UHCI_PORT_SUSPEND && !(port->ctrl & UHCI_PORT_RD)) { 649 port->ctrl |= UHCI_PORT_RD; 650 uhci_resume(s); 651 } 652 } 653 654 static USBDevice *uhci_find_device(UHCIState *s, uint8_t addr) 655 { 656 USBDevice *dev; 657 int i; 658 659 for (i = 0; i < NB_PORTS; i++) { 660 UHCIPort *port = &s->ports[i]; 661 if (!(port->ctrl & UHCI_PORT_EN)) { 662 continue; 663 } 664 dev = usb_find_device(&port->port, addr); 665 if (dev != NULL) { 666 return dev; 667 } 668 } 669 return NULL; 670 } 671 672 static void uhci_read_td(UHCIState *s, UHCI_TD *td, uint32_t link) 673 { 674 pci_dma_read(&s->dev, link & ~0xf, td, sizeof(*td)); 675 le32_to_cpus(&td->link); 676 le32_to_cpus(&td->ctrl); 677 le32_to_cpus(&td->token); 678 le32_to_cpus(&td->buffer); 679 } 680 681 static int uhci_handle_td_error(UHCIState *s, UHCI_TD *td, uint32_t td_addr, 682 int status, uint32_t *int_mask) 683 { 684 uint32_t queue_token = uhci_queue_token(td); 685 int ret; 686 687 switch (status) { 688 case USB_RET_NAK: 689 td->ctrl |= TD_CTRL_NAK; 690 return TD_RESULT_NEXT_QH; 691 692 case USB_RET_STALL: 693 td->ctrl |= TD_CTRL_STALL; 694 trace_usb_uhci_packet_complete_stall(queue_token, td_addr); 695 ret = TD_RESULT_NEXT_QH; 696 break; 697 698 case USB_RET_BABBLE: 699 td->ctrl |= TD_CTRL_BABBLE | TD_CTRL_STALL; 700 /* frame interrupted */ 701 trace_usb_uhci_packet_complete_babble(queue_token, td_addr); 702 ret = TD_RESULT_STOP_FRAME; 703 break; 704 705 case USB_RET_IOERROR: 706 case USB_RET_NODEV: 707 default: 708 td->ctrl |= TD_CTRL_TIMEOUT; 709 td->ctrl &= ~(3 << TD_CTRL_ERROR_SHIFT); 710 trace_usb_uhci_packet_complete_error(queue_token, td_addr); 711 ret = TD_RESULT_NEXT_QH; 712 break; 713 } 714 715 td->ctrl &= ~TD_CTRL_ACTIVE; 716 s->status |= UHCI_STS_USBERR; 717 if (td->ctrl & TD_CTRL_IOC) { 718 *int_mask |= 0x01; 719 } 720 uhci_update_irq(s); 721 return ret; 722 } 723 724 static int uhci_complete_td(UHCIState *s, UHCI_TD *td, UHCIAsync *async, uint32_t *int_mask) 725 { 726 int len = 0, max_len; 727 uint8_t pid; 728 729 max_len = ((td->token >> 21) + 1) & 0x7ff; 730 pid = td->token & 0xff; 731 732 if (td->ctrl & TD_CTRL_IOS) 733 td->ctrl &= ~TD_CTRL_ACTIVE; 734 735 if (async->packet.status != USB_RET_SUCCESS) { 736 return uhci_handle_td_error(s, td, async->td_addr, 737 async->packet.status, int_mask); 738 } 739 740 len = async->packet.actual_length; 741 td->ctrl = (td->ctrl & ~0x7ff) | ((len - 1) & 0x7ff); 742 743 /* The NAK bit may have been set by a previous frame, so clear it 744 here. The docs are somewhat unclear, but win2k relies on this 745 behavior. */ 746 td->ctrl &= ~(TD_CTRL_ACTIVE | TD_CTRL_NAK); 747 if (td->ctrl & TD_CTRL_IOC) 748 *int_mask |= 0x01; 749 750 if (pid == USB_TOKEN_IN) { 751 pci_dma_write(&s->dev, td->buffer, async->buf, len); 752 if ((td->ctrl & TD_CTRL_SPD) && len < max_len) { 753 *int_mask |= 0x02; 754 /* short packet: do not update QH */ 755 trace_usb_uhci_packet_complete_shortxfer(async->queue->token, 756 async->td_addr); 757 return TD_RESULT_NEXT_QH; 758 } 759 } 760 761 /* success */ 762 trace_usb_uhci_packet_complete_success(async->queue->token, 763 async->td_addr); 764 return TD_RESULT_COMPLETE; 765 } 766 767 static int uhci_handle_td(UHCIState *s, UHCIQueue *q, uint32_t qh_addr, 768 UHCI_TD *td, uint32_t td_addr, uint32_t *int_mask) 769 { 770 int ret, max_len; 771 bool spd; 772 bool queuing = (q != NULL); 773 uint8_t pid = td->token & 0xff; 774 UHCIAsync *async = uhci_async_find_td(s, td_addr); 775 776 if (async) { 777 if (uhci_queue_verify(async->queue, qh_addr, td, td_addr, queuing)) { 778 assert(q == NULL || q == async->queue); 779 q = async->queue; 780 } else { 781 uhci_queue_free(async->queue, "guest re-used pending td"); 782 async = NULL; 783 } 784 } 785 786 if (q == NULL) { 787 q = uhci_queue_find(s, td); 788 if (q && !uhci_queue_verify(q, qh_addr, td, td_addr, queuing)) { 789 uhci_queue_free(q, "guest re-used qh"); 790 q = NULL; 791 } 792 } 793 794 if (q) { 795 q->valid = QH_VALID; 796 } 797 798 /* Is active ? */ 799 if (!(td->ctrl & TD_CTRL_ACTIVE)) { 800 if (async) { 801 /* Guest marked a pending td non-active, cancel the queue */ 802 uhci_queue_free(async->queue, "pending td non-active"); 803 } 804 /* 805 * ehci11d spec page 22: "Even if the Active bit in the TD is already 806 * cleared when the TD is fetched ... an IOC interrupt is generated" 807 */ 808 if (td->ctrl & TD_CTRL_IOC) { 809 *int_mask |= 0x01; 810 } 811 return TD_RESULT_NEXT_QH; 812 } 813 814 if (async) { 815 if (queuing) { 816 /* we are busy filling the queue, we are not prepared 817 to consume completed packages then, just leave them 818 in async state */ 819 return TD_RESULT_ASYNC_CONT; 820 } 821 if (!async->done) { 822 UHCI_TD last_td; 823 UHCIAsync *last = QTAILQ_LAST(&async->queue->asyncs, asyncs_head); 824 /* 825 * While we are waiting for the current td to complete, the guest 826 * may have added more tds to the queue. Note we re-read the td 827 * rather then caching it, as we want to see guest made changes! 828 */ 829 uhci_read_td(s, &last_td, last->td_addr); 830 uhci_queue_fill(async->queue, &last_td); 831 832 return TD_RESULT_ASYNC_CONT; 833 } 834 uhci_async_unlink(async); 835 goto done; 836 } 837 838 if (s->completions_only) { 839 return TD_RESULT_ASYNC_CONT; 840 } 841 842 /* Allocate new packet */ 843 if (q == NULL) { 844 USBDevice *dev = uhci_find_device(s, (td->token >> 8) & 0x7f); 845 USBEndpoint *ep = usb_ep_get(dev, pid, (td->token >> 15) & 0xf); 846 847 if (ep == NULL) { 848 return uhci_handle_td_error(s, td, td_addr, USB_RET_NODEV, 849 int_mask); 850 } 851 q = uhci_queue_new(s, qh_addr, td, ep); 852 } 853 async = uhci_async_alloc(q, td_addr); 854 855 max_len = ((td->token >> 21) + 1) & 0x7ff; 856 spd = (pid == USB_TOKEN_IN && (td->ctrl & TD_CTRL_SPD) != 0); 857 usb_packet_setup(&async->packet, pid, q->ep, 0, td_addr, spd, 858 (td->ctrl & TD_CTRL_IOC) != 0); 859 if (max_len <= sizeof(async->static_buf)) { 860 async->buf = async->static_buf; 861 } else { 862 async->buf = g_malloc(max_len); 863 } 864 usb_packet_addbuf(&async->packet, async->buf, max_len); 865 866 switch(pid) { 867 case USB_TOKEN_OUT: 868 case USB_TOKEN_SETUP: 869 pci_dma_read(&s->dev, td->buffer, async->buf, max_len); 870 usb_handle_packet(q->ep->dev, &async->packet); 871 if (async->packet.status == USB_RET_SUCCESS) { 872 async->packet.actual_length = max_len; 873 } 874 break; 875 876 case USB_TOKEN_IN: 877 usb_handle_packet(q->ep->dev, &async->packet); 878 break; 879 880 default: 881 /* invalid pid : frame interrupted */ 882 uhci_async_free(async); 883 s->status |= UHCI_STS_HCPERR; 884 uhci_update_irq(s); 885 return TD_RESULT_STOP_FRAME; 886 } 887 888 if (async->packet.status == USB_RET_ASYNC) { 889 uhci_async_link(async); 890 if (!queuing) { 891 uhci_queue_fill(q, td); 892 } 893 return TD_RESULT_ASYNC_START; 894 } 895 896 done: 897 ret = uhci_complete_td(s, td, async, int_mask); 898 uhci_async_free(async); 899 return ret; 900 } 901 902 static void uhci_async_complete(USBPort *port, USBPacket *packet) 903 { 904 UHCIAsync *async = container_of(packet, UHCIAsync, packet); 905 UHCIState *s = async->queue->uhci; 906 907 if (packet->status == USB_RET_REMOVE_FROM_QUEUE) { 908 uhci_async_cancel(async); 909 return; 910 } 911 912 async->done = 1; 913 /* Force processing of this packet *now*, needed for migration */ 914 s->completions_only = true; 915 qemu_bh_schedule(s->bh); 916 } 917 918 static int is_valid(uint32_t link) 919 { 920 return (link & 1) == 0; 921 } 922 923 static int is_qh(uint32_t link) 924 { 925 return (link & 2) != 0; 926 } 927 928 static int depth_first(uint32_t link) 929 { 930 return (link & 4) != 0; 931 } 932 933 /* QH DB used for detecting QH loops */ 934 #define UHCI_MAX_QUEUES 128 935 typedef struct { 936 uint32_t addr[UHCI_MAX_QUEUES]; 937 int count; 938 } QhDb; 939 940 static void qhdb_reset(QhDb *db) 941 { 942 db->count = 0; 943 } 944 945 /* Add QH to DB. Returns 1 if already present or DB is full. */ 946 static int qhdb_insert(QhDb *db, uint32_t addr) 947 { 948 int i; 949 for (i = 0; i < db->count; i++) 950 if (db->addr[i] == addr) 951 return 1; 952 953 if (db->count >= UHCI_MAX_QUEUES) 954 return 1; 955 956 db->addr[db->count++] = addr; 957 return 0; 958 } 959 960 static void uhci_queue_fill(UHCIQueue *q, UHCI_TD *td) 961 { 962 uint32_t int_mask = 0; 963 uint32_t plink = td->link; 964 UHCI_TD ptd; 965 int ret; 966 967 while (is_valid(plink)) { 968 uhci_read_td(q->uhci, &ptd, plink); 969 if (!(ptd.ctrl & TD_CTRL_ACTIVE)) { 970 break; 971 } 972 if (uhci_queue_token(&ptd) != q->token) { 973 break; 974 } 975 trace_usb_uhci_td_queue(plink & ~0xf, ptd.ctrl, ptd.token); 976 ret = uhci_handle_td(q->uhci, q, q->qh_addr, &ptd, plink, &int_mask); 977 if (ret == TD_RESULT_ASYNC_CONT) { 978 break; 979 } 980 assert(ret == TD_RESULT_ASYNC_START); 981 assert(int_mask == 0); 982 plink = ptd.link; 983 } 984 usb_device_flush_ep_queue(q->ep->dev, q->ep); 985 } 986 987 static void uhci_process_frame(UHCIState *s) 988 { 989 uint32_t frame_addr, link, old_td_ctrl, val, int_mask; 990 uint32_t curr_qh, td_count = 0; 991 int cnt, ret; 992 UHCI_TD td; 993 UHCI_QH qh; 994 QhDb qhdb; 995 996 frame_addr = s->fl_base_addr + ((s->frnum & 0x3ff) << 2); 997 998 pci_dma_read(&s->dev, frame_addr, &link, 4); 999 le32_to_cpus(&link); 1000 1001 int_mask = 0; 1002 curr_qh = 0; 1003 1004 qhdb_reset(&qhdb); 1005 1006 for (cnt = FRAME_MAX_LOOPS; is_valid(link) && cnt; cnt--) { 1007 if (!s->completions_only && s->frame_bytes >= s->frame_bandwidth) { 1008 /* We've reached the usb 1.1 bandwidth, which is 1009 1280 bytes/frame, stop processing */ 1010 trace_usb_uhci_frame_stop_bandwidth(); 1011 break; 1012 } 1013 if (is_qh(link)) { 1014 /* QH */ 1015 trace_usb_uhci_qh_load(link & ~0xf); 1016 1017 if (qhdb_insert(&qhdb, link)) { 1018 /* 1019 * We're going in circles. Which is not a bug because 1020 * HCD is allowed to do that as part of the BW management. 1021 * 1022 * Stop processing here if no transaction has been done 1023 * since we've been here last time. 1024 */ 1025 if (td_count == 0) { 1026 trace_usb_uhci_frame_loop_stop_idle(); 1027 break; 1028 } else { 1029 trace_usb_uhci_frame_loop_continue(); 1030 td_count = 0; 1031 qhdb_reset(&qhdb); 1032 qhdb_insert(&qhdb, link); 1033 } 1034 } 1035 1036 pci_dma_read(&s->dev, link & ~0xf, &qh, sizeof(qh)); 1037 le32_to_cpus(&qh.link); 1038 le32_to_cpus(&qh.el_link); 1039 1040 if (!is_valid(qh.el_link)) { 1041 /* QH w/o elements */ 1042 curr_qh = 0; 1043 link = qh.link; 1044 } else { 1045 /* QH with elements */ 1046 curr_qh = link; 1047 link = qh.el_link; 1048 } 1049 continue; 1050 } 1051 1052 /* TD */ 1053 uhci_read_td(s, &td, link); 1054 trace_usb_uhci_td_load(curr_qh & ~0xf, link & ~0xf, td.ctrl, td.token); 1055 1056 old_td_ctrl = td.ctrl; 1057 ret = uhci_handle_td(s, NULL, curr_qh, &td, link, &int_mask); 1058 if (old_td_ctrl != td.ctrl) { 1059 /* update the status bits of the TD */ 1060 val = cpu_to_le32(td.ctrl); 1061 pci_dma_write(&s->dev, (link & ~0xf) + 4, &val, sizeof(val)); 1062 } 1063 1064 switch (ret) { 1065 case TD_RESULT_STOP_FRAME: /* interrupted frame */ 1066 goto out; 1067 1068 case TD_RESULT_NEXT_QH: 1069 case TD_RESULT_ASYNC_CONT: 1070 trace_usb_uhci_td_nextqh(curr_qh & ~0xf, link & ~0xf); 1071 link = curr_qh ? qh.link : td.link; 1072 continue; 1073 1074 case TD_RESULT_ASYNC_START: 1075 trace_usb_uhci_td_async(curr_qh & ~0xf, link & ~0xf); 1076 link = curr_qh ? qh.link : td.link; 1077 continue; 1078 1079 case TD_RESULT_COMPLETE: 1080 trace_usb_uhci_td_complete(curr_qh & ~0xf, link & ~0xf); 1081 link = td.link; 1082 td_count++; 1083 s->frame_bytes += (td.ctrl & 0x7ff) + 1; 1084 1085 if (curr_qh) { 1086 /* update QH element link */ 1087 qh.el_link = link; 1088 val = cpu_to_le32(qh.el_link); 1089 pci_dma_write(&s->dev, (curr_qh & ~0xf) + 4, &val, sizeof(val)); 1090 1091 if (!depth_first(link)) { 1092 /* done with this QH */ 1093 curr_qh = 0; 1094 link = qh.link; 1095 } 1096 } 1097 break; 1098 1099 default: 1100 assert(!"unknown return code"); 1101 } 1102 1103 /* go to the next entry */ 1104 } 1105 1106 out: 1107 s->pending_int_mask |= int_mask; 1108 } 1109 1110 static void uhci_bh(void *opaque) 1111 { 1112 UHCIState *s = opaque; 1113 uhci_process_frame(s); 1114 } 1115 1116 static void uhci_frame_timer(void *opaque) 1117 { 1118 UHCIState *s = opaque; 1119 uint64_t t_now, t_last_run; 1120 int i, frames; 1121 const uint64_t frame_t = get_ticks_per_sec() / FRAME_TIMER_FREQ; 1122 1123 s->completions_only = false; 1124 qemu_bh_cancel(s->bh); 1125 1126 if (!(s->cmd & UHCI_CMD_RS)) { 1127 /* Full stop */ 1128 trace_usb_uhci_schedule_stop(); 1129 timer_del(s->frame_timer); 1130 uhci_async_cancel_all(s); 1131 /* set hchalted bit in status - UHCI11D 2.1.2 */ 1132 s->status |= UHCI_STS_HCHALTED; 1133 return; 1134 } 1135 1136 /* We still store expire_time in our state, for migration */ 1137 t_last_run = s->expire_time - frame_t; 1138 t_now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); 1139 1140 /* Process up to MAX_FRAMES_PER_TICK frames */ 1141 frames = (t_now - t_last_run) / frame_t; 1142 if (frames > s->maxframes) { 1143 int skipped = frames - s->maxframes; 1144 s->expire_time += skipped * frame_t; 1145 s->frnum = (s->frnum + skipped) & 0x7ff; 1146 frames -= skipped; 1147 } 1148 if (frames > MAX_FRAMES_PER_TICK) { 1149 frames = MAX_FRAMES_PER_TICK; 1150 } 1151 1152 for (i = 0; i < frames; i++) { 1153 s->frame_bytes = 0; 1154 trace_usb_uhci_frame_start(s->frnum); 1155 uhci_async_validate_begin(s); 1156 uhci_process_frame(s); 1157 uhci_async_validate_end(s); 1158 /* The spec says frnum is the frame currently being processed, and 1159 * the guest must look at frnum - 1 on interrupt, so inc frnum now */ 1160 s->frnum = (s->frnum + 1) & 0x7ff; 1161 s->expire_time += frame_t; 1162 } 1163 1164 /* Complete the previous frame(s) */ 1165 if (s->pending_int_mask) { 1166 s->status2 |= s->pending_int_mask; 1167 s->status |= UHCI_STS_USBINT; 1168 uhci_update_irq(s); 1169 } 1170 s->pending_int_mask = 0; 1171 1172 timer_mod(s->frame_timer, t_now + frame_t); 1173 } 1174 1175 static const MemoryRegionOps uhci_ioport_ops = { 1176 .read = uhci_port_read, 1177 .write = uhci_port_write, 1178 .valid.min_access_size = 1, 1179 .valid.max_access_size = 4, 1180 .impl.min_access_size = 2, 1181 .impl.max_access_size = 2, 1182 .endianness = DEVICE_LITTLE_ENDIAN, 1183 }; 1184 1185 static USBPortOps uhci_port_ops = { 1186 .attach = uhci_attach, 1187 .detach = uhci_detach, 1188 .child_detach = uhci_child_detach, 1189 .wakeup = uhci_wakeup, 1190 .complete = uhci_async_complete, 1191 }; 1192 1193 static USBBusOps uhci_bus_ops = { 1194 }; 1195 1196 static int usb_uhci_common_initfn(PCIDevice *dev) 1197 { 1198 PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(dev); 1199 UHCIPCIDeviceClass *u = container_of(pc, UHCIPCIDeviceClass, parent_class); 1200 UHCIState *s = DO_UPCAST(UHCIState, dev, dev); 1201 uint8_t *pci_conf = s->dev.config; 1202 int i; 1203 1204 pci_conf[PCI_CLASS_PROG] = 0x00; 1205 /* TODO: reset value should be 0. */ 1206 pci_conf[USB_SBRN] = USB_RELEASE_1; // release number 1207 1208 pci_config_set_interrupt_pin(pci_conf, u->info.irq_pin + 1); 1209 1210 if (s->masterbus) { 1211 USBPort *ports[NB_PORTS]; 1212 for(i = 0; i < NB_PORTS; i++) { 1213 ports[i] = &s->ports[i].port; 1214 } 1215 if (usb_register_companion(s->masterbus, ports, NB_PORTS, 1216 s->firstport, s, &uhci_port_ops, 1217 USB_SPEED_MASK_LOW | USB_SPEED_MASK_FULL) != 0) { 1218 return -1; 1219 } 1220 } else { 1221 usb_bus_new(&s->bus, sizeof(s->bus), &uhci_bus_ops, DEVICE(dev)); 1222 for (i = 0; i < NB_PORTS; i++) { 1223 usb_register_port(&s->bus, &s->ports[i].port, s, i, &uhci_port_ops, 1224 USB_SPEED_MASK_LOW | USB_SPEED_MASK_FULL); 1225 } 1226 } 1227 s->bh = qemu_bh_new(uhci_bh, s); 1228 s->frame_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, uhci_frame_timer, s); 1229 s->num_ports_vmstate = NB_PORTS; 1230 QTAILQ_INIT(&s->queues); 1231 1232 qemu_register_reset(uhci_reset, s); 1233 1234 memory_region_init_io(&s->io_bar, OBJECT(s), &uhci_ioport_ops, s, 1235 "uhci", 0x20); 1236 1237 /* Use region 4 for consistency with real hardware. BSD guests seem 1238 to rely on this. */ 1239 pci_register_bar(&s->dev, 4, PCI_BASE_ADDRESS_SPACE_IO, &s->io_bar); 1240 1241 return 0; 1242 } 1243 1244 static int usb_uhci_vt82c686b_initfn(PCIDevice *dev) 1245 { 1246 UHCIState *s = DO_UPCAST(UHCIState, dev, dev); 1247 uint8_t *pci_conf = s->dev.config; 1248 1249 /* USB misc control 1/2 */ 1250 pci_set_long(pci_conf + 0x40,0x00001000); 1251 /* PM capability */ 1252 pci_set_long(pci_conf + 0x80,0x00020001); 1253 /* USB legacy support */ 1254 pci_set_long(pci_conf + 0xc0,0x00002000); 1255 1256 return usb_uhci_common_initfn(dev); 1257 } 1258 1259 static void usb_uhci_exit(PCIDevice *dev) 1260 { 1261 UHCIState *s = DO_UPCAST(UHCIState, dev, dev); 1262 1263 memory_region_destroy(&s->io_bar); 1264 } 1265 1266 static Property uhci_properties[] = { 1267 DEFINE_PROP_STRING("masterbus", UHCIState, masterbus), 1268 DEFINE_PROP_UINT32("firstport", UHCIState, firstport, 0), 1269 DEFINE_PROP_UINT32("bandwidth", UHCIState, frame_bandwidth, 1280), 1270 DEFINE_PROP_UINT32("maxframes", UHCIState, maxframes, 128), 1271 DEFINE_PROP_END_OF_LIST(), 1272 }; 1273 1274 static void uhci_class_init(ObjectClass *klass, void *data) 1275 { 1276 DeviceClass *dc = DEVICE_CLASS(klass); 1277 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); 1278 UHCIPCIDeviceClass *u = container_of(k, UHCIPCIDeviceClass, parent_class); 1279 UHCIInfo *info = data; 1280 1281 k->init = info->initfn ? info->initfn : usb_uhci_common_initfn; 1282 k->exit = info->unplug ? usb_uhci_exit : NULL; 1283 k->vendor_id = info->vendor_id; 1284 k->device_id = info->device_id; 1285 k->revision = info->revision; 1286 k->class_id = PCI_CLASS_SERIAL_USB; 1287 dc->hotpluggable = false; 1288 dc->vmsd = &vmstate_uhci; 1289 dc->props = uhci_properties; 1290 set_bit(DEVICE_CATEGORY_USB, dc->categories); 1291 u->info = *info; 1292 } 1293 1294 static UHCIInfo uhci_info[] = { 1295 { 1296 .name = "piix3-usb-uhci", 1297 .vendor_id = PCI_VENDOR_ID_INTEL, 1298 .device_id = PCI_DEVICE_ID_INTEL_82371SB_2, 1299 .revision = 0x01, 1300 .irq_pin = 3, 1301 .unplug = true, 1302 },{ 1303 .name = "piix4-usb-uhci", 1304 .vendor_id = PCI_VENDOR_ID_INTEL, 1305 .device_id = PCI_DEVICE_ID_INTEL_82371AB_2, 1306 .revision = 0x01, 1307 .irq_pin = 3, 1308 .unplug = true, 1309 },{ 1310 .name = "vt82c686b-usb-uhci", 1311 .vendor_id = PCI_VENDOR_ID_VIA, 1312 .device_id = PCI_DEVICE_ID_VIA_UHCI, 1313 .revision = 0x01, 1314 .irq_pin = 3, 1315 .initfn = usb_uhci_vt82c686b_initfn, 1316 .unplug = true, 1317 },{ 1318 .name = "ich9-usb-uhci1", /* 00:1d.0 */ 1319 .vendor_id = PCI_VENDOR_ID_INTEL, 1320 .device_id = PCI_DEVICE_ID_INTEL_82801I_UHCI1, 1321 .revision = 0x03, 1322 .irq_pin = 0, 1323 .unplug = false, 1324 },{ 1325 .name = "ich9-usb-uhci2", /* 00:1d.1 */ 1326 .vendor_id = PCI_VENDOR_ID_INTEL, 1327 .device_id = PCI_DEVICE_ID_INTEL_82801I_UHCI2, 1328 .revision = 0x03, 1329 .irq_pin = 1, 1330 .unplug = false, 1331 },{ 1332 .name = "ich9-usb-uhci3", /* 00:1d.2 */ 1333 .vendor_id = PCI_VENDOR_ID_INTEL, 1334 .device_id = PCI_DEVICE_ID_INTEL_82801I_UHCI3, 1335 .revision = 0x03, 1336 .irq_pin = 2, 1337 .unplug = false, 1338 },{ 1339 .name = "ich9-usb-uhci4", /* 00:1a.0 */ 1340 .vendor_id = PCI_VENDOR_ID_INTEL, 1341 .device_id = PCI_DEVICE_ID_INTEL_82801I_UHCI4, 1342 .revision = 0x03, 1343 .irq_pin = 0, 1344 .unplug = false, 1345 },{ 1346 .name = "ich9-usb-uhci5", /* 00:1a.1 */ 1347 .vendor_id = PCI_VENDOR_ID_INTEL, 1348 .device_id = PCI_DEVICE_ID_INTEL_82801I_UHCI5, 1349 .revision = 0x03, 1350 .irq_pin = 1, 1351 .unplug = false, 1352 },{ 1353 .name = "ich9-usb-uhci6", /* 00:1a.2 */ 1354 .vendor_id = PCI_VENDOR_ID_INTEL, 1355 .device_id = PCI_DEVICE_ID_INTEL_82801I_UHCI6, 1356 .revision = 0x03, 1357 .irq_pin = 2, 1358 .unplug = false, 1359 } 1360 }; 1361 1362 static void uhci_register_types(void) 1363 { 1364 TypeInfo uhci_type_info = { 1365 .parent = TYPE_PCI_DEVICE, 1366 .instance_size = sizeof(UHCIState), 1367 .class_size = sizeof(UHCIPCIDeviceClass), 1368 .class_init = uhci_class_init, 1369 }; 1370 int i; 1371 1372 for (i = 0; i < ARRAY_SIZE(uhci_info); i++) { 1373 uhci_type_info.name = uhci_info[i].name; 1374 uhci_type_info.class_data = uhci_info + i; 1375 type_register(&uhci_type_info); 1376 } 1377 } 1378 1379 type_init(uhci_register_types) 1380