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/pci/pci.h" 31 #include "qemu/timer.h" 32 #include "qemu/iov.h" 33 #include "sysemu/dma.h" 34 #include "trace.h" 35 #include "qemu/main-loop.h" 36 37 //#define DEBUG 38 //#define DEBUG_DUMP_DATA 39 40 #define UHCI_CMD_FGR (1 << 4) 41 #define UHCI_CMD_EGSM (1 << 3) 42 #define UHCI_CMD_GRESET (1 << 2) 43 #define UHCI_CMD_HCRESET (1 << 1) 44 #define UHCI_CMD_RS (1 << 0) 45 46 #define UHCI_STS_HCHALTED (1 << 5) 47 #define UHCI_STS_HCPERR (1 << 4) 48 #define UHCI_STS_HSERR (1 << 3) 49 #define UHCI_STS_RD (1 << 2) 50 #define UHCI_STS_USBERR (1 << 1) 51 #define UHCI_STS_USBINT (1 << 0) 52 53 #define TD_CTRL_SPD (1 << 29) 54 #define TD_CTRL_ERROR_SHIFT 27 55 #define TD_CTRL_IOS (1 << 25) 56 #define TD_CTRL_IOC (1 << 24) 57 #define TD_CTRL_ACTIVE (1 << 23) 58 #define TD_CTRL_STALL (1 << 22) 59 #define TD_CTRL_BABBLE (1 << 20) 60 #define TD_CTRL_NAK (1 << 19) 61 #define TD_CTRL_TIMEOUT (1 << 18) 62 63 #define UHCI_PORT_SUSPEND (1 << 12) 64 #define UHCI_PORT_RESET (1 << 9) 65 #define UHCI_PORT_LSDA (1 << 8) 66 #define UHCI_PORT_RD (1 << 6) 67 #define UHCI_PORT_ENC (1 << 3) 68 #define UHCI_PORT_EN (1 << 2) 69 #define UHCI_PORT_CSC (1 << 1) 70 #define UHCI_PORT_CCS (1 << 0) 71 72 #define UHCI_PORT_READ_ONLY (0x1bb) 73 #define UHCI_PORT_WRITE_CLEAR (UHCI_PORT_CSC | UHCI_PORT_ENC) 74 75 #define FRAME_TIMER_FREQ 1000 76 77 #define FRAME_MAX_LOOPS 256 78 79 /* Must be large enough to handle 10 frame delay for initial isoc requests */ 80 #define QH_VALID 32 81 82 #define MAX_FRAMES_PER_TICK (QH_VALID / 2) 83 84 #define NB_PORTS 2 85 86 enum { 87 TD_RESULT_STOP_FRAME = 10, 88 TD_RESULT_COMPLETE, 89 TD_RESULT_NEXT_QH, 90 TD_RESULT_ASYNC_START, 91 TD_RESULT_ASYNC_CONT, 92 }; 93 94 typedef struct UHCIState UHCIState; 95 typedef struct UHCIAsync UHCIAsync; 96 typedef struct UHCIQueue UHCIQueue; 97 typedef struct UHCIInfo UHCIInfo; 98 typedef struct UHCIPCIDeviceClass UHCIPCIDeviceClass; 99 100 struct UHCIInfo { 101 const char *name; 102 uint16_t vendor_id; 103 uint16_t device_id; 104 uint8_t revision; 105 uint8_t irq_pin; 106 int (*initfn)(PCIDevice *dev); 107 bool unplug; 108 }; 109 110 struct UHCIPCIDeviceClass { 111 PCIDeviceClass parent_class; 112 UHCIInfo info; 113 }; 114 115 /* 116 * Pending async transaction. 117 * 'packet' must be the first field because completion 118 * handler does "(UHCIAsync *) pkt" cast. 119 */ 120 121 struct UHCIAsync { 122 USBPacket packet; 123 uint8_t static_buf[64]; /* 64 bytes is enough, except for isoc packets */ 124 uint8_t *buf; 125 UHCIQueue *queue; 126 QTAILQ_ENTRY(UHCIAsync) next; 127 uint32_t td_addr; 128 uint8_t done; 129 }; 130 131 struct UHCIQueue { 132 uint32_t qh_addr; 133 uint32_t token; 134 UHCIState *uhci; 135 USBEndpoint *ep; 136 QTAILQ_ENTRY(UHCIQueue) next; 137 QTAILQ_HEAD(asyncs_head, UHCIAsync) asyncs; 138 int8_t valid; 139 }; 140 141 typedef struct UHCIPort { 142 USBPort port; 143 uint16_t ctrl; 144 } UHCIPort; 145 146 struct UHCIState { 147 PCIDevice dev; 148 MemoryRegion io_bar; 149 USBBus bus; /* Note unused when we're a companion controller */ 150 uint16_t cmd; /* cmd register */ 151 uint16_t status; 152 uint16_t intr; /* interrupt enable register */ 153 uint16_t frnum; /* frame number */ 154 uint32_t fl_base_addr; /* frame list base address */ 155 uint8_t sof_timing; 156 uint8_t status2; /* bit 0 and 1 are used to generate UHCI_STS_USBINT */ 157 int64_t expire_time; 158 QEMUTimer *frame_timer; 159 QEMUBH *bh; 160 uint32_t frame_bytes; 161 uint32_t frame_bandwidth; 162 bool completions_only; 163 UHCIPort ports[NB_PORTS]; 164 165 /* Interrupts that should be raised at the end of the current frame. */ 166 uint32_t pending_int_mask; 167 int irq_pin; 168 169 /* Active packets */ 170 QTAILQ_HEAD(, UHCIQueue) queues; 171 uint8_t num_ports_vmstate; 172 173 /* Properties */ 174 char *masterbus; 175 uint32_t firstport; 176 uint32_t maxframes; 177 }; 178 179 typedef struct UHCI_TD { 180 uint32_t link; 181 uint32_t ctrl; /* see TD_CTRL_xxx */ 182 uint32_t token; 183 uint32_t buffer; 184 } UHCI_TD; 185 186 typedef struct UHCI_QH { 187 uint32_t link; 188 uint32_t el_link; 189 } UHCI_QH; 190 191 static void uhci_async_cancel(UHCIAsync *async); 192 static void uhci_queue_fill(UHCIQueue *q, UHCI_TD *td); 193 static void uhci_resume(void *opaque); 194 195 static inline int32_t uhci_queue_token(UHCI_TD *td) 196 { 197 if ((td->token & (0xf << 15)) == 0) { 198 /* ctrl ep, cover ep and dev, not pid! */ 199 return td->token & 0x7ff00; 200 } else { 201 /* covers ep, dev, pid -> identifies the endpoint */ 202 return td->token & 0x7ffff; 203 } 204 } 205 206 static UHCIQueue *uhci_queue_new(UHCIState *s, uint32_t qh_addr, UHCI_TD *td, 207 USBEndpoint *ep) 208 { 209 UHCIQueue *queue; 210 211 queue = g_new0(UHCIQueue, 1); 212 queue->uhci = s; 213 queue->qh_addr = qh_addr; 214 queue->token = uhci_queue_token(td); 215 queue->ep = ep; 216 QTAILQ_INIT(&queue->asyncs); 217 QTAILQ_INSERT_HEAD(&s->queues, queue, next); 218 queue->valid = QH_VALID; 219 trace_usb_uhci_queue_add(queue->token); 220 return queue; 221 } 222 223 static void uhci_queue_free(UHCIQueue *queue, const char *reason) 224 { 225 UHCIState *s = queue->uhci; 226 UHCIAsync *async; 227 228 while (!QTAILQ_EMPTY(&queue->asyncs)) { 229 async = QTAILQ_FIRST(&queue->asyncs); 230 uhci_async_cancel(async); 231 } 232 usb_device_ep_stopped(queue->ep->dev, queue->ep); 233 234 trace_usb_uhci_queue_del(queue->token, reason); 235 QTAILQ_REMOVE(&s->queues, queue, next); 236 g_free(queue); 237 } 238 239 static UHCIQueue *uhci_queue_find(UHCIState *s, UHCI_TD *td) 240 { 241 uint32_t token = uhci_queue_token(td); 242 UHCIQueue *queue; 243 244 QTAILQ_FOREACH(queue, &s->queues, next) { 245 if (queue->token == token) { 246 return queue; 247 } 248 } 249 return NULL; 250 } 251 252 static bool uhci_queue_verify(UHCIQueue *queue, uint32_t qh_addr, UHCI_TD *td, 253 uint32_t td_addr, bool queuing) 254 { 255 UHCIAsync *first = QTAILQ_FIRST(&queue->asyncs); 256 257 return queue->qh_addr == qh_addr && 258 queue->token == uhci_queue_token(td) && 259 (queuing || !(td->ctrl & TD_CTRL_ACTIVE) || first == NULL || 260 first->td_addr == td_addr); 261 } 262 263 static UHCIAsync *uhci_async_alloc(UHCIQueue *queue, uint32_t td_addr) 264 { 265 UHCIAsync *async = g_new0(UHCIAsync, 1); 266 267 async->queue = queue; 268 async->td_addr = td_addr; 269 usb_packet_init(&async->packet); 270 trace_usb_uhci_packet_add(async->queue->token, async->td_addr); 271 272 return async; 273 } 274 275 static void uhci_async_free(UHCIAsync *async) 276 { 277 trace_usb_uhci_packet_del(async->queue->token, async->td_addr); 278 usb_packet_cleanup(&async->packet); 279 if (async->buf != async->static_buf) { 280 g_free(async->buf); 281 } 282 g_free(async); 283 } 284 285 static void uhci_async_link(UHCIAsync *async) 286 { 287 UHCIQueue *queue = async->queue; 288 QTAILQ_INSERT_TAIL(&queue->asyncs, async, next); 289 trace_usb_uhci_packet_link_async(async->queue->token, async->td_addr); 290 } 291 292 static void uhci_async_unlink(UHCIAsync *async) 293 { 294 UHCIQueue *queue = async->queue; 295 QTAILQ_REMOVE(&queue->asyncs, async, next); 296 trace_usb_uhci_packet_unlink_async(async->queue->token, async->td_addr); 297 } 298 299 static void uhci_async_cancel(UHCIAsync *async) 300 { 301 uhci_async_unlink(async); 302 trace_usb_uhci_packet_cancel(async->queue->token, async->td_addr, 303 async->done); 304 if (!async->done) 305 usb_cancel_packet(&async->packet); 306 uhci_async_free(async); 307 } 308 309 /* 310 * Mark all outstanding async packets as invalid. 311 * This is used for canceling them when TDs are removed by the HCD. 312 */ 313 static void uhci_async_validate_begin(UHCIState *s) 314 { 315 UHCIQueue *queue; 316 317 QTAILQ_FOREACH(queue, &s->queues, next) { 318 queue->valid--; 319 } 320 } 321 322 /* 323 * Cancel async packets that are no longer valid 324 */ 325 static void uhci_async_validate_end(UHCIState *s) 326 { 327 UHCIQueue *queue, *n; 328 329 QTAILQ_FOREACH_SAFE(queue, &s->queues, next, n) { 330 if (!queue->valid) { 331 uhci_queue_free(queue, "validate-end"); 332 } 333 } 334 } 335 336 static void uhci_async_cancel_device(UHCIState *s, USBDevice *dev) 337 { 338 UHCIQueue *queue, *n; 339 340 QTAILQ_FOREACH_SAFE(queue, &s->queues, next, n) { 341 if (queue->ep->dev == dev) { 342 uhci_queue_free(queue, "cancel-device"); 343 } 344 } 345 } 346 347 static void uhci_async_cancel_all(UHCIState *s) 348 { 349 UHCIQueue *queue, *nq; 350 351 QTAILQ_FOREACH_SAFE(queue, &s->queues, next, nq) { 352 uhci_queue_free(queue, "cancel-all"); 353 } 354 } 355 356 static UHCIAsync *uhci_async_find_td(UHCIState *s, uint32_t td_addr) 357 { 358 UHCIQueue *queue; 359 UHCIAsync *async; 360 361 QTAILQ_FOREACH(queue, &s->queues, next) { 362 QTAILQ_FOREACH(async, &queue->asyncs, next) { 363 if (async->td_addr == td_addr) { 364 return async; 365 } 366 } 367 } 368 return NULL; 369 } 370 371 static void uhci_update_irq(UHCIState *s) 372 { 373 int level; 374 if (((s->status2 & 1) && (s->intr & (1 << 2))) || 375 ((s->status2 & 2) && (s->intr & (1 << 3))) || 376 ((s->status & UHCI_STS_USBERR) && (s->intr & (1 << 0))) || 377 ((s->status & UHCI_STS_RD) && (s->intr & (1 << 1))) || 378 (s->status & UHCI_STS_HSERR) || 379 (s->status & UHCI_STS_HCPERR)) { 380 level = 1; 381 } else { 382 level = 0; 383 } 384 qemu_set_irq(s->dev.irq[s->irq_pin], level); 385 } 386 387 static void uhci_reset(void *opaque) 388 { 389 UHCIState *s = opaque; 390 uint8_t *pci_conf; 391 int i; 392 UHCIPort *port; 393 394 trace_usb_uhci_reset(); 395 396 pci_conf = s->dev.config; 397 398 pci_conf[0x6a] = 0x01; /* usb clock */ 399 pci_conf[0x6b] = 0x00; 400 s->cmd = 0; 401 s->status = 0; 402 s->status2 = 0; 403 s->intr = 0; 404 s->fl_base_addr = 0; 405 s->sof_timing = 64; 406 407 for(i = 0; i < NB_PORTS; i++) { 408 port = &s->ports[i]; 409 port->ctrl = 0x0080; 410 if (port->port.dev && port->port.dev->attached) { 411 usb_port_reset(&port->port); 412 } 413 } 414 415 uhci_async_cancel_all(s); 416 qemu_bh_cancel(s->bh); 417 uhci_update_irq(s); 418 } 419 420 static const VMStateDescription vmstate_uhci_port = { 421 .name = "uhci port", 422 .version_id = 1, 423 .minimum_version_id = 1, 424 .minimum_version_id_old = 1, 425 .fields = (VMStateField []) { 426 VMSTATE_UINT16(ctrl, UHCIPort), 427 VMSTATE_END_OF_LIST() 428 } 429 }; 430 431 static int uhci_post_load(void *opaque, int version_id) 432 { 433 UHCIState *s = opaque; 434 435 if (version_id < 2) { 436 s->expire_time = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + 437 (get_ticks_per_sec() / FRAME_TIMER_FREQ); 438 } 439 return 0; 440 } 441 442 static const VMStateDescription vmstate_uhci = { 443 .name = "uhci", 444 .version_id = 3, 445 .minimum_version_id = 1, 446 .minimum_version_id_old = 1, 447 .post_load = uhci_post_load, 448 .fields = (VMStateField []) { 449 VMSTATE_PCI_DEVICE(dev, UHCIState), 450 VMSTATE_UINT8_EQUAL(num_ports_vmstate, UHCIState), 451 VMSTATE_STRUCT_ARRAY(ports, UHCIState, NB_PORTS, 1, 452 vmstate_uhci_port, UHCIPort), 453 VMSTATE_UINT16(cmd, UHCIState), 454 VMSTATE_UINT16(status, UHCIState), 455 VMSTATE_UINT16(intr, UHCIState), 456 VMSTATE_UINT16(frnum, UHCIState), 457 VMSTATE_UINT32(fl_base_addr, UHCIState), 458 VMSTATE_UINT8(sof_timing, UHCIState), 459 VMSTATE_UINT8(status2, UHCIState), 460 VMSTATE_TIMER(frame_timer, UHCIState), 461 VMSTATE_INT64_V(expire_time, UHCIState, 2), 462 VMSTATE_UINT32_V(pending_int_mask, UHCIState, 3), 463 VMSTATE_END_OF_LIST() 464 } 465 }; 466 467 static void uhci_port_write(void *opaque, hwaddr addr, 468 uint64_t val, unsigned size) 469 { 470 UHCIState *s = opaque; 471 472 trace_usb_uhci_mmio_writew(addr, val); 473 474 switch(addr) { 475 case 0x00: 476 if ((val & UHCI_CMD_RS) && !(s->cmd & UHCI_CMD_RS)) { 477 /* start frame processing */ 478 trace_usb_uhci_schedule_start(); 479 s->expire_time = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + 480 (get_ticks_per_sec() / FRAME_TIMER_FREQ); 481 timer_mod(s->frame_timer, s->expire_time); 482 s->status &= ~UHCI_STS_HCHALTED; 483 } else if (!(val & UHCI_CMD_RS)) { 484 s->status |= UHCI_STS_HCHALTED; 485 } 486 if (val & UHCI_CMD_GRESET) { 487 UHCIPort *port; 488 int i; 489 490 /* send reset on the USB bus */ 491 for(i = 0; i < NB_PORTS; i++) { 492 port = &s->ports[i]; 493 usb_device_reset(port->port.dev); 494 } 495 uhci_reset(s); 496 return; 497 } 498 if (val & UHCI_CMD_HCRESET) { 499 uhci_reset(s); 500 return; 501 } 502 s->cmd = val; 503 if (val & UHCI_CMD_EGSM) { 504 if ((s->ports[0].ctrl & UHCI_PORT_RD) || 505 (s->ports[1].ctrl & UHCI_PORT_RD)) { 506 uhci_resume(s); 507 } 508 } 509 break; 510 case 0x02: 511 s->status &= ~val; 512 /* XXX: the chip spec is not coherent, so we add a hidden 513 register to distinguish between IOC and SPD */ 514 if (val & UHCI_STS_USBINT) 515 s->status2 = 0; 516 uhci_update_irq(s); 517 break; 518 case 0x04: 519 s->intr = val; 520 uhci_update_irq(s); 521 break; 522 case 0x06: 523 if (s->status & UHCI_STS_HCHALTED) 524 s->frnum = val & 0x7ff; 525 break; 526 case 0x08: 527 s->fl_base_addr &= 0xffff0000; 528 s->fl_base_addr |= val & ~0xfff; 529 break; 530 case 0x0a: 531 s->fl_base_addr &= 0x0000ffff; 532 s->fl_base_addr |= (val << 16); 533 break; 534 case 0x0c: 535 s->sof_timing = val & 0xff; 536 break; 537 case 0x10 ... 0x1f: 538 { 539 UHCIPort *port; 540 USBDevice *dev; 541 int n; 542 543 n = (addr >> 1) & 7; 544 if (n >= NB_PORTS) 545 return; 546 port = &s->ports[n]; 547 dev = port->port.dev; 548 if (dev && dev->attached) { 549 /* port reset */ 550 if ( (val & UHCI_PORT_RESET) && 551 !(port->ctrl & UHCI_PORT_RESET) ) { 552 usb_device_reset(dev); 553 } 554 } 555 port->ctrl &= UHCI_PORT_READ_ONLY; 556 /* enabled may only be set if a device is connected */ 557 if (!(port->ctrl & UHCI_PORT_CCS)) { 558 val &= ~UHCI_PORT_EN; 559 } 560 port->ctrl |= (val & ~UHCI_PORT_READ_ONLY); 561 /* some bits are reset when a '1' is written to them */ 562 port->ctrl &= ~(val & UHCI_PORT_WRITE_CLEAR); 563 } 564 break; 565 } 566 } 567 568 static uint64_t uhci_port_read(void *opaque, hwaddr addr, unsigned size) 569 { 570 UHCIState *s = opaque; 571 uint32_t val; 572 573 switch(addr) { 574 case 0x00: 575 val = s->cmd; 576 break; 577 case 0x02: 578 val = s->status; 579 break; 580 case 0x04: 581 val = s->intr; 582 break; 583 case 0x06: 584 val = s->frnum; 585 break; 586 case 0x08: 587 val = s->fl_base_addr & 0xffff; 588 break; 589 case 0x0a: 590 val = (s->fl_base_addr >> 16) & 0xffff; 591 break; 592 case 0x0c: 593 val = s->sof_timing; 594 break; 595 case 0x10 ... 0x1f: 596 { 597 UHCIPort *port; 598 int n; 599 n = (addr >> 1) & 7; 600 if (n >= NB_PORTS) 601 goto read_default; 602 port = &s->ports[n]; 603 val = port->ctrl; 604 } 605 break; 606 default: 607 read_default: 608 val = 0xff7f; /* disabled port */ 609 break; 610 } 611 612 trace_usb_uhci_mmio_readw(addr, val); 613 614 return val; 615 } 616 617 /* signal resume if controller suspended */ 618 static void uhci_resume (void *opaque) 619 { 620 UHCIState *s = (UHCIState *)opaque; 621 622 if (!s) 623 return; 624 625 if (s->cmd & UHCI_CMD_EGSM) { 626 s->cmd |= UHCI_CMD_FGR; 627 s->status |= UHCI_STS_RD; 628 uhci_update_irq(s); 629 } 630 } 631 632 static void uhci_attach(USBPort *port1) 633 { 634 UHCIState *s = port1->opaque; 635 UHCIPort *port = &s->ports[port1->index]; 636 637 /* set connect status */ 638 port->ctrl |= UHCI_PORT_CCS | UHCI_PORT_CSC; 639 640 /* update speed */ 641 if (port->port.dev->speed == USB_SPEED_LOW) { 642 port->ctrl |= UHCI_PORT_LSDA; 643 } else { 644 port->ctrl &= ~UHCI_PORT_LSDA; 645 } 646 647 uhci_resume(s); 648 } 649 650 static void uhci_detach(USBPort *port1) 651 { 652 UHCIState *s = port1->opaque; 653 UHCIPort *port = &s->ports[port1->index]; 654 655 uhci_async_cancel_device(s, port1->dev); 656 657 /* set connect status */ 658 if (port->ctrl & UHCI_PORT_CCS) { 659 port->ctrl &= ~UHCI_PORT_CCS; 660 port->ctrl |= UHCI_PORT_CSC; 661 } 662 /* disable port */ 663 if (port->ctrl & UHCI_PORT_EN) { 664 port->ctrl &= ~UHCI_PORT_EN; 665 port->ctrl |= UHCI_PORT_ENC; 666 } 667 668 uhci_resume(s); 669 } 670 671 static void uhci_child_detach(USBPort *port1, USBDevice *child) 672 { 673 UHCIState *s = port1->opaque; 674 675 uhci_async_cancel_device(s, child); 676 } 677 678 static void uhci_wakeup(USBPort *port1) 679 { 680 UHCIState *s = port1->opaque; 681 UHCIPort *port = &s->ports[port1->index]; 682 683 if (port->ctrl & UHCI_PORT_SUSPEND && !(port->ctrl & UHCI_PORT_RD)) { 684 port->ctrl |= UHCI_PORT_RD; 685 uhci_resume(s); 686 } 687 } 688 689 static USBDevice *uhci_find_device(UHCIState *s, uint8_t addr) 690 { 691 USBDevice *dev; 692 int i; 693 694 for (i = 0; i < NB_PORTS; i++) { 695 UHCIPort *port = &s->ports[i]; 696 if (!(port->ctrl & UHCI_PORT_EN)) { 697 continue; 698 } 699 dev = usb_find_device(&port->port, addr); 700 if (dev != NULL) { 701 return dev; 702 } 703 } 704 return NULL; 705 } 706 707 static void uhci_read_td(UHCIState *s, UHCI_TD *td, uint32_t link) 708 { 709 pci_dma_read(&s->dev, link & ~0xf, td, sizeof(*td)); 710 le32_to_cpus(&td->link); 711 le32_to_cpus(&td->ctrl); 712 le32_to_cpus(&td->token); 713 le32_to_cpus(&td->buffer); 714 } 715 716 static int uhci_handle_td_error(UHCIState *s, UHCI_TD *td, uint32_t td_addr, 717 int status, uint32_t *int_mask) 718 { 719 uint32_t queue_token = uhci_queue_token(td); 720 int ret; 721 722 switch (status) { 723 case USB_RET_NAK: 724 td->ctrl |= TD_CTRL_NAK; 725 return TD_RESULT_NEXT_QH; 726 727 case USB_RET_STALL: 728 td->ctrl |= TD_CTRL_STALL; 729 trace_usb_uhci_packet_complete_stall(queue_token, td_addr); 730 ret = TD_RESULT_NEXT_QH; 731 break; 732 733 case USB_RET_BABBLE: 734 td->ctrl |= TD_CTRL_BABBLE | TD_CTRL_STALL; 735 /* frame interrupted */ 736 trace_usb_uhci_packet_complete_babble(queue_token, td_addr); 737 ret = TD_RESULT_STOP_FRAME; 738 break; 739 740 case USB_RET_IOERROR: 741 case USB_RET_NODEV: 742 default: 743 td->ctrl |= TD_CTRL_TIMEOUT; 744 td->ctrl &= ~(3 << TD_CTRL_ERROR_SHIFT); 745 trace_usb_uhci_packet_complete_error(queue_token, td_addr); 746 ret = TD_RESULT_NEXT_QH; 747 break; 748 } 749 750 td->ctrl &= ~TD_CTRL_ACTIVE; 751 s->status |= UHCI_STS_USBERR; 752 if (td->ctrl & TD_CTRL_IOC) { 753 *int_mask |= 0x01; 754 } 755 uhci_update_irq(s); 756 return ret; 757 } 758 759 static int uhci_complete_td(UHCIState *s, UHCI_TD *td, UHCIAsync *async, uint32_t *int_mask) 760 { 761 int len = 0, max_len; 762 uint8_t pid; 763 764 max_len = ((td->token >> 21) + 1) & 0x7ff; 765 pid = td->token & 0xff; 766 767 if (td->ctrl & TD_CTRL_IOS) 768 td->ctrl &= ~TD_CTRL_ACTIVE; 769 770 if (async->packet.status != USB_RET_SUCCESS) { 771 return uhci_handle_td_error(s, td, async->td_addr, 772 async->packet.status, int_mask); 773 } 774 775 len = async->packet.actual_length; 776 td->ctrl = (td->ctrl & ~0x7ff) | ((len - 1) & 0x7ff); 777 778 /* The NAK bit may have been set by a previous frame, so clear it 779 here. The docs are somewhat unclear, but win2k relies on this 780 behavior. */ 781 td->ctrl &= ~(TD_CTRL_ACTIVE | TD_CTRL_NAK); 782 if (td->ctrl & TD_CTRL_IOC) 783 *int_mask |= 0x01; 784 785 if (pid == USB_TOKEN_IN) { 786 pci_dma_write(&s->dev, td->buffer, async->buf, len); 787 if ((td->ctrl & TD_CTRL_SPD) && len < max_len) { 788 *int_mask |= 0x02; 789 /* short packet: do not update QH */ 790 trace_usb_uhci_packet_complete_shortxfer(async->queue->token, 791 async->td_addr); 792 return TD_RESULT_NEXT_QH; 793 } 794 } 795 796 /* success */ 797 trace_usb_uhci_packet_complete_success(async->queue->token, 798 async->td_addr); 799 return TD_RESULT_COMPLETE; 800 } 801 802 static int uhci_handle_td(UHCIState *s, UHCIQueue *q, uint32_t qh_addr, 803 UHCI_TD *td, uint32_t td_addr, uint32_t *int_mask) 804 { 805 int ret, max_len; 806 bool spd; 807 bool queuing = (q != NULL); 808 uint8_t pid = td->token & 0xff; 809 UHCIAsync *async = uhci_async_find_td(s, td_addr); 810 811 if (async) { 812 if (uhci_queue_verify(async->queue, qh_addr, td, td_addr, queuing)) { 813 assert(q == NULL || q == async->queue); 814 q = async->queue; 815 } else { 816 uhci_queue_free(async->queue, "guest re-used pending td"); 817 async = NULL; 818 } 819 } 820 821 if (q == NULL) { 822 q = uhci_queue_find(s, td); 823 if (q && !uhci_queue_verify(q, qh_addr, td, td_addr, queuing)) { 824 uhci_queue_free(q, "guest re-used qh"); 825 q = NULL; 826 } 827 } 828 829 if (q) { 830 q->valid = QH_VALID; 831 } 832 833 /* Is active ? */ 834 if (!(td->ctrl & TD_CTRL_ACTIVE)) { 835 if (async) { 836 /* Guest marked a pending td non-active, cancel the queue */ 837 uhci_queue_free(async->queue, "pending td non-active"); 838 } 839 /* 840 * ehci11d spec page 22: "Even if the Active bit in the TD is already 841 * cleared when the TD is fetched ... an IOC interrupt is generated" 842 */ 843 if (td->ctrl & TD_CTRL_IOC) { 844 *int_mask |= 0x01; 845 } 846 return TD_RESULT_NEXT_QH; 847 } 848 849 if (async) { 850 if (queuing) { 851 /* we are busy filling the queue, we are not prepared 852 to consume completed packages then, just leave them 853 in async state */ 854 return TD_RESULT_ASYNC_CONT; 855 } 856 if (!async->done) { 857 UHCI_TD last_td; 858 UHCIAsync *last = QTAILQ_LAST(&async->queue->asyncs, asyncs_head); 859 /* 860 * While we are waiting for the current td to complete, the guest 861 * may have added more tds to the queue. Note we re-read the td 862 * rather then caching it, as we want to see guest made changes! 863 */ 864 uhci_read_td(s, &last_td, last->td_addr); 865 uhci_queue_fill(async->queue, &last_td); 866 867 return TD_RESULT_ASYNC_CONT; 868 } 869 uhci_async_unlink(async); 870 goto done; 871 } 872 873 if (s->completions_only) { 874 return TD_RESULT_ASYNC_CONT; 875 } 876 877 /* Allocate new packet */ 878 if (q == NULL) { 879 USBDevice *dev = uhci_find_device(s, (td->token >> 8) & 0x7f); 880 USBEndpoint *ep = usb_ep_get(dev, pid, (td->token >> 15) & 0xf); 881 882 if (ep == NULL) { 883 return uhci_handle_td_error(s, td, td_addr, USB_RET_NODEV, 884 int_mask); 885 } 886 q = uhci_queue_new(s, qh_addr, td, ep); 887 } 888 async = uhci_async_alloc(q, td_addr); 889 890 max_len = ((td->token >> 21) + 1) & 0x7ff; 891 spd = (pid == USB_TOKEN_IN && (td->ctrl & TD_CTRL_SPD) != 0); 892 usb_packet_setup(&async->packet, pid, q->ep, 0, td_addr, spd, 893 (td->ctrl & TD_CTRL_IOC) != 0); 894 if (max_len <= sizeof(async->static_buf)) { 895 async->buf = async->static_buf; 896 } else { 897 async->buf = g_malloc(max_len); 898 } 899 usb_packet_addbuf(&async->packet, async->buf, max_len); 900 901 switch(pid) { 902 case USB_TOKEN_OUT: 903 case USB_TOKEN_SETUP: 904 pci_dma_read(&s->dev, td->buffer, async->buf, max_len); 905 usb_handle_packet(q->ep->dev, &async->packet); 906 if (async->packet.status == USB_RET_SUCCESS) { 907 async->packet.actual_length = max_len; 908 } 909 break; 910 911 case USB_TOKEN_IN: 912 usb_handle_packet(q->ep->dev, &async->packet); 913 break; 914 915 default: 916 /* invalid pid : frame interrupted */ 917 uhci_async_free(async); 918 s->status |= UHCI_STS_HCPERR; 919 uhci_update_irq(s); 920 return TD_RESULT_STOP_FRAME; 921 } 922 923 if (async->packet.status == USB_RET_ASYNC) { 924 uhci_async_link(async); 925 if (!queuing) { 926 uhci_queue_fill(q, td); 927 } 928 return TD_RESULT_ASYNC_START; 929 } 930 931 done: 932 ret = uhci_complete_td(s, td, async, int_mask); 933 uhci_async_free(async); 934 return ret; 935 } 936 937 static void uhci_async_complete(USBPort *port, USBPacket *packet) 938 { 939 UHCIAsync *async = container_of(packet, UHCIAsync, packet); 940 UHCIState *s = async->queue->uhci; 941 942 if (packet->status == USB_RET_REMOVE_FROM_QUEUE) { 943 uhci_async_cancel(async); 944 return; 945 } 946 947 async->done = 1; 948 /* Force processing of this packet *now*, needed for migration */ 949 s->completions_only = true; 950 qemu_bh_schedule(s->bh); 951 } 952 953 static int is_valid(uint32_t link) 954 { 955 return (link & 1) == 0; 956 } 957 958 static int is_qh(uint32_t link) 959 { 960 return (link & 2) != 0; 961 } 962 963 static int depth_first(uint32_t link) 964 { 965 return (link & 4) != 0; 966 } 967 968 /* QH DB used for detecting QH loops */ 969 #define UHCI_MAX_QUEUES 128 970 typedef struct { 971 uint32_t addr[UHCI_MAX_QUEUES]; 972 int count; 973 } QhDb; 974 975 static void qhdb_reset(QhDb *db) 976 { 977 db->count = 0; 978 } 979 980 /* Add QH to DB. Returns 1 if already present or DB is full. */ 981 static int qhdb_insert(QhDb *db, uint32_t addr) 982 { 983 int i; 984 for (i = 0; i < db->count; i++) 985 if (db->addr[i] == addr) 986 return 1; 987 988 if (db->count >= UHCI_MAX_QUEUES) 989 return 1; 990 991 db->addr[db->count++] = addr; 992 return 0; 993 } 994 995 static void uhci_queue_fill(UHCIQueue *q, UHCI_TD *td) 996 { 997 uint32_t int_mask = 0; 998 uint32_t plink = td->link; 999 UHCI_TD ptd; 1000 int ret; 1001 1002 while (is_valid(plink)) { 1003 uhci_read_td(q->uhci, &ptd, plink); 1004 if (!(ptd.ctrl & TD_CTRL_ACTIVE)) { 1005 break; 1006 } 1007 if (uhci_queue_token(&ptd) != q->token) { 1008 break; 1009 } 1010 trace_usb_uhci_td_queue(plink & ~0xf, ptd.ctrl, ptd.token); 1011 ret = uhci_handle_td(q->uhci, q, q->qh_addr, &ptd, plink, &int_mask); 1012 if (ret == TD_RESULT_ASYNC_CONT) { 1013 break; 1014 } 1015 assert(ret == TD_RESULT_ASYNC_START); 1016 assert(int_mask == 0); 1017 plink = ptd.link; 1018 } 1019 usb_device_flush_ep_queue(q->ep->dev, q->ep); 1020 } 1021 1022 static void uhci_process_frame(UHCIState *s) 1023 { 1024 uint32_t frame_addr, link, old_td_ctrl, val, int_mask; 1025 uint32_t curr_qh, td_count = 0; 1026 int cnt, ret; 1027 UHCI_TD td; 1028 UHCI_QH qh; 1029 QhDb qhdb; 1030 1031 frame_addr = s->fl_base_addr + ((s->frnum & 0x3ff) << 2); 1032 1033 pci_dma_read(&s->dev, frame_addr, &link, 4); 1034 le32_to_cpus(&link); 1035 1036 int_mask = 0; 1037 curr_qh = 0; 1038 1039 qhdb_reset(&qhdb); 1040 1041 for (cnt = FRAME_MAX_LOOPS; is_valid(link) && cnt; cnt--) { 1042 if (!s->completions_only && s->frame_bytes >= s->frame_bandwidth) { 1043 /* We've reached the usb 1.1 bandwidth, which is 1044 1280 bytes/frame, stop processing */ 1045 trace_usb_uhci_frame_stop_bandwidth(); 1046 break; 1047 } 1048 if (is_qh(link)) { 1049 /* QH */ 1050 trace_usb_uhci_qh_load(link & ~0xf); 1051 1052 if (qhdb_insert(&qhdb, link)) { 1053 /* 1054 * We're going in circles. Which is not a bug because 1055 * HCD is allowed to do that as part of the BW management. 1056 * 1057 * Stop processing here if no transaction has been done 1058 * since we've been here last time. 1059 */ 1060 if (td_count == 0) { 1061 trace_usb_uhci_frame_loop_stop_idle(); 1062 break; 1063 } else { 1064 trace_usb_uhci_frame_loop_continue(); 1065 td_count = 0; 1066 qhdb_reset(&qhdb); 1067 qhdb_insert(&qhdb, link); 1068 } 1069 } 1070 1071 pci_dma_read(&s->dev, link & ~0xf, &qh, sizeof(qh)); 1072 le32_to_cpus(&qh.link); 1073 le32_to_cpus(&qh.el_link); 1074 1075 if (!is_valid(qh.el_link)) { 1076 /* QH w/o elements */ 1077 curr_qh = 0; 1078 link = qh.link; 1079 } else { 1080 /* QH with elements */ 1081 curr_qh = link; 1082 link = qh.el_link; 1083 } 1084 continue; 1085 } 1086 1087 /* TD */ 1088 uhci_read_td(s, &td, link); 1089 trace_usb_uhci_td_load(curr_qh & ~0xf, link & ~0xf, td.ctrl, td.token); 1090 1091 old_td_ctrl = td.ctrl; 1092 ret = uhci_handle_td(s, NULL, curr_qh, &td, link, &int_mask); 1093 if (old_td_ctrl != td.ctrl) { 1094 /* update the status bits of the TD */ 1095 val = cpu_to_le32(td.ctrl); 1096 pci_dma_write(&s->dev, (link & ~0xf) + 4, &val, sizeof(val)); 1097 } 1098 1099 switch (ret) { 1100 case TD_RESULT_STOP_FRAME: /* interrupted frame */ 1101 goto out; 1102 1103 case TD_RESULT_NEXT_QH: 1104 case TD_RESULT_ASYNC_CONT: 1105 trace_usb_uhci_td_nextqh(curr_qh & ~0xf, link & ~0xf); 1106 link = curr_qh ? qh.link : td.link; 1107 continue; 1108 1109 case TD_RESULT_ASYNC_START: 1110 trace_usb_uhci_td_async(curr_qh & ~0xf, link & ~0xf); 1111 link = curr_qh ? qh.link : td.link; 1112 continue; 1113 1114 case TD_RESULT_COMPLETE: 1115 trace_usb_uhci_td_complete(curr_qh & ~0xf, link & ~0xf); 1116 link = td.link; 1117 td_count++; 1118 s->frame_bytes += (td.ctrl & 0x7ff) + 1; 1119 1120 if (curr_qh) { 1121 /* update QH element link */ 1122 qh.el_link = link; 1123 val = cpu_to_le32(qh.el_link); 1124 pci_dma_write(&s->dev, (curr_qh & ~0xf) + 4, &val, sizeof(val)); 1125 1126 if (!depth_first(link)) { 1127 /* done with this QH */ 1128 curr_qh = 0; 1129 link = qh.link; 1130 } 1131 } 1132 break; 1133 1134 default: 1135 assert(!"unknown return code"); 1136 } 1137 1138 /* go to the next entry */ 1139 } 1140 1141 out: 1142 s->pending_int_mask |= int_mask; 1143 } 1144 1145 static void uhci_bh(void *opaque) 1146 { 1147 UHCIState *s = opaque; 1148 uhci_process_frame(s); 1149 } 1150 1151 static void uhci_frame_timer(void *opaque) 1152 { 1153 UHCIState *s = opaque; 1154 uint64_t t_now, t_last_run; 1155 int i, frames; 1156 const uint64_t frame_t = get_ticks_per_sec() / FRAME_TIMER_FREQ; 1157 1158 s->completions_only = false; 1159 qemu_bh_cancel(s->bh); 1160 1161 if (!(s->cmd & UHCI_CMD_RS)) { 1162 /* Full stop */ 1163 trace_usb_uhci_schedule_stop(); 1164 timer_del(s->frame_timer); 1165 uhci_async_cancel_all(s); 1166 /* set hchalted bit in status - UHCI11D 2.1.2 */ 1167 s->status |= UHCI_STS_HCHALTED; 1168 return; 1169 } 1170 1171 /* We still store expire_time in our state, for migration */ 1172 t_last_run = s->expire_time - frame_t; 1173 t_now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); 1174 1175 /* Process up to MAX_FRAMES_PER_TICK frames */ 1176 frames = (t_now - t_last_run) / frame_t; 1177 if (frames > s->maxframes) { 1178 int skipped = frames - s->maxframes; 1179 s->expire_time += skipped * frame_t; 1180 s->frnum = (s->frnum + skipped) & 0x7ff; 1181 frames -= skipped; 1182 } 1183 if (frames > MAX_FRAMES_PER_TICK) { 1184 frames = MAX_FRAMES_PER_TICK; 1185 } 1186 1187 for (i = 0; i < frames; i++) { 1188 s->frame_bytes = 0; 1189 trace_usb_uhci_frame_start(s->frnum); 1190 uhci_async_validate_begin(s); 1191 uhci_process_frame(s); 1192 uhci_async_validate_end(s); 1193 /* The spec says frnum is the frame currently being processed, and 1194 * the guest must look at frnum - 1 on interrupt, so inc frnum now */ 1195 s->frnum = (s->frnum + 1) & 0x7ff; 1196 s->expire_time += frame_t; 1197 } 1198 1199 /* Complete the previous frame(s) */ 1200 if (s->pending_int_mask) { 1201 s->status2 |= s->pending_int_mask; 1202 s->status |= UHCI_STS_USBINT; 1203 uhci_update_irq(s); 1204 } 1205 s->pending_int_mask = 0; 1206 1207 timer_mod(s->frame_timer, t_now + frame_t); 1208 } 1209 1210 static const MemoryRegionOps uhci_ioport_ops = { 1211 .read = uhci_port_read, 1212 .write = uhci_port_write, 1213 .valid.min_access_size = 1, 1214 .valid.max_access_size = 4, 1215 .impl.min_access_size = 2, 1216 .impl.max_access_size = 2, 1217 .endianness = DEVICE_LITTLE_ENDIAN, 1218 }; 1219 1220 static USBPortOps uhci_port_ops = { 1221 .attach = uhci_attach, 1222 .detach = uhci_detach, 1223 .child_detach = uhci_child_detach, 1224 .wakeup = uhci_wakeup, 1225 .complete = uhci_async_complete, 1226 }; 1227 1228 static USBBusOps uhci_bus_ops = { 1229 }; 1230 1231 static int usb_uhci_common_initfn(PCIDevice *dev) 1232 { 1233 PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(dev); 1234 UHCIPCIDeviceClass *u = container_of(pc, UHCIPCIDeviceClass, parent_class); 1235 UHCIState *s = DO_UPCAST(UHCIState, dev, dev); 1236 uint8_t *pci_conf = s->dev.config; 1237 int i; 1238 1239 pci_conf[PCI_CLASS_PROG] = 0x00; 1240 /* TODO: reset value should be 0. */ 1241 pci_conf[USB_SBRN] = USB_RELEASE_1; // release number 1242 1243 s->irq_pin = u->info.irq_pin; 1244 pci_config_set_interrupt_pin(pci_conf, s->irq_pin + 1); 1245 1246 if (s->masterbus) { 1247 USBPort *ports[NB_PORTS]; 1248 for(i = 0; i < NB_PORTS; i++) { 1249 ports[i] = &s->ports[i].port; 1250 } 1251 if (usb_register_companion(s->masterbus, ports, NB_PORTS, 1252 s->firstport, s, &uhci_port_ops, 1253 USB_SPEED_MASK_LOW | USB_SPEED_MASK_FULL) != 0) { 1254 return -1; 1255 } 1256 } else { 1257 usb_bus_new(&s->bus, sizeof(s->bus), &uhci_bus_ops, DEVICE(dev)); 1258 for (i = 0; i < NB_PORTS; i++) { 1259 usb_register_port(&s->bus, &s->ports[i].port, s, i, &uhci_port_ops, 1260 USB_SPEED_MASK_LOW | USB_SPEED_MASK_FULL); 1261 } 1262 } 1263 s->bh = qemu_bh_new(uhci_bh, s); 1264 s->frame_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, uhci_frame_timer, s); 1265 s->num_ports_vmstate = NB_PORTS; 1266 QTAILQ_INIT(&s->queues); 1267 1268 qemu_register_reset(uhci_reset, s); 1269 1270 memory_region_init_io(&s->io_bar, OBJECT(s), &uhci_ioport_ops, s, 1271 "uhci", 0x20); 1272 1273 /* Use region 4 for consistency with real hardware. BSD guests seem 1274 to rely on this. */ 1275 pci_register_bar(&s->dev, 4, PCI_BASE_ADDRESS_SPACE_IO, &s->io_bar); 1276 1277 return 0; 1278 } 1279 1280 static int usb_uhci_vt82c686b_initfn(PCIDevice *dev) 1281 { 1282 UHCIState *s = DO_UPCAST(UHCIState, dev, dev); 1283 uint8_t *pci_conf = s->dev.config; 1284 1285 /* USB misc control 1/2 */ 1286 pci_set_long(pci_conf + 0x40,0x00001000); 1287 /* PM capability */ 1288 pci_set_long(pci_conf + 0x80,0x00020001); 1289 /* USB legacy support */ 1290 pci_set_long(pci_conf + 0xc0,0x00002000); 1291 1292 return usb_uhci_common_initfn(dev); 1293 } 1294 1295 static void usb_uhci_exit(PCIDevice *dev) 1296 { 1297 UHCIState *s = DO_UPCAST(UHCIState, dev, dev); 1298 1299 memory_region_destroy(&s->io_bar); 1300 } 1301 1302 static Property uhci_properties[] = { 1303 DEFINE_PROP_STRING("masterbus", UHCIState, masterbus), 1304 DEFINE_PROP_UINT32("firstport", UHCIState, firstport, 0), 1305 DEFINE_PROP_UINT32("bandwidth", UHCIState, frame_bandwidth, 1280), 1306 DEFINE_PROP_UINT32("maxframes", UHCIState, maxframes, 128), 1307 DEFINE_PROP_END_OF_LIST(), 1308 }; 1309 1310 static void uhci_class_init(ObjectClass *klass, void *data) 1311 { 1312 DeviceClass *dc = DEVICE_CLASS(klass); 1313 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); 1314 UHCIPCIDeviceClass *u = container_of(k, UHCIPCIDeviceClass, parent_class); 1315 UHCIInfo *info = data; 1316 1317 k->init = info->initfn ? info->initfn : usb_uhci_common_initfn; 1318 k->exit = info->unplug ? usb_uhci_exit : NULL; 1319 k->vendor_id = info->vendor_id; 1320 k->device_id = info->device_id; 1321 k->revision = info->revision; 1322 k->class_id = PCI_CLASS_SERIAL_USB; 1323 k->no_hotplug = 1; 1324 dc->vmsd = &vmstate_uhci; 1325 dc->props = uhci_properties; 1326 set_bit(DEVICE_CATEGORY_USB, dc->categories); 1327 u->info = *info; 1328 } 1329 1330 static UHCIInfo uhci_info[] = { 1331 { 1332 .name = "piix3-usb-uhci", 1333 .vendor_id = PCI_VENDOR_ID_INTEL, 1334 .device_id = PCI_DEVICE_ID_INTEL_82371SB_2, 1335 .revision = 0x01, 1336 .irq_pin = 3, 1337 .unplug = true, 1338 },{ 1339 .name = "piix4-usb-uhci", 1340 .vendor_id = PCI_VENDOR_ID_INTEL, 1341 .device_id = PCI_DEVICE_ID_INTEL_82371AB_2, 1342 .revision = 0x01, 1343 .irq_pin = 3, 1344 .unplug = true, 1345 },{ 1346 .name = "vt82c686b-usb-uhci", 1347 .vendor_id = PCI_VENDOR_ID_VIA, 1348 .device_id = PCI_DEVICE_ID_VIA_UHCI, 1349 .revision = 0x01, 1350 .irq_pin = 3, 1351 .initfn = usb_uhci_vt82c686b_initfn, 1352 .unplug = true, 1353 },{ 1354 .name = "ich9-usb-uhci1", /* 00:1d.0 */ 1355 .vendor_id = PCI_VENDOR_ID_INTEL, 1356 .device_id = PCI_DEVICE_ID_INTEL_82801I_UHCI1, 1357 .revision = 0x03, 1358 .irq_pin = 0, 1359 .unplug = false, 1360 },{ 1361 .name = "ich9-usb-uhci2", /* 00:1d.1 */ 1362 .vendor_id = PCI_VENDOR_ID_INTEL, 1363 .device_id = PCI_DEVICE_ID_INTEL_82801I_UHCI2, 1364 .revision = 0x03, 1365 .irq_pin = 1, 1366 .unplug = false, 1367 },{ 1368 .name = "ich9-usb-uhci3", /* 00:1d.2 */ 1369 .vendor_id = PCI_VENDOR_ID_INTEL, 1370 .device_id = PCI_DEVICE_ID_INTEL_82801I_UHCI3, 1371 .revision = 0x03, 1372 .irq_pin = 2, 1373 .unplug = false, 1374 },{ 1375 .name = "ich9-usb-uhci4", /* 00:1a.0 */ 1376 .vendor_id = PCI_VENDOR_ID_INTEL, 1377 .device_id = PCI_DEVICE_ID_INTEL_82801I_UHCI4, 1378 .revision = 0x03, 1379 .irq_pin = 0, 1380 .unplug = false, 1381 },{ 1382 .name = "ich9-usb-uhci5", /* 00:1a.1 */ 1383 .vendor_id = PCI_VENDOR_ID_INTEL, 1384 .device_id = PCI_DEVICE_ID_INTEL_82801I_UHCI5, 1385 .revision = 0x03, 1386 .irq_pin = 1, 1387 .unplug = false, 1388 },{ 1389 .name = "ich9-usb-uhci6", /* 00:1a.2 */ 1390 .vendor_id = PCI_VENDOR_ID_INTEL, 1391 .device_id = PCI_DEVICE_ID_INTEL_82801I_UHCI6, 1392 .revision = 0x03, 1393 .irq_pin = 2, 1394 .unplug = false, 1395 } 1396 }; 1397 1398 static void uhci_register_types(void) 1399 { 1400 TypeInfo uhci_type_info = { 1401 .parent = TYPE_PCI_DEVICE, 1402 .instance_size = sizeof(UHCIState), 1403 .class_size = sizeof(UHCIPCIDeviceClass), 1404 .class_init = uhci_class_init, 1405 }; 1406 int i; 1407 1408 for (i = 0; i < ARRAY_SIZE(uhci_info); i++) { 1409 uhci_type_info.name = uhci_info[i].name; 1410 uhci_type_info.class_data = uhci_info + i; 1411 type_register(&uhci_type_info); 1412 } 1413 } 1414 1415 type_init(uhci_register_types) 1416