hw/usb/hcd-uhci.c

   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.h"
  31 #include "qemu-timer.h"
  32 #include "iov.h"
  33 #include "dma.h"
  34 #include "trace.h"
  35
  36 //#define DEBUG
  37 //#define DEBUG_DUMP_DATA
  38
  39 #define UHCI_CMD_FGR      (1 << 4)
  40 #define UHCI_CMD_EGSM     (1 << 3)
  41 #define UHCI_CMD_GRESET   (1 << 2)
  42 #define UHCI_CMD_HCRESET  (1 << 1)
  43 #define UHCI_CMD_RS       (1 << 0)
  44
  45 #define UHCI_STS_HCHALTED (1 << 5)
  46 #define UHCI_STS_HCPERR   (1 << 4)
  47 #define UHCI_STS_HSERR    (1 << 3)
  48 #define UHCI_STS_RD       (1 << 2)
  49 #define UHCI_STS_USBERR   (1 << 1)
  50 #define UHCI_STS_USBINT   (1 << 0)
  51
  52 #define TD_CTRL_SPD     (1 << 29)
  53 #define TD_CTRL_ERROR_SHIFT  27
  54 #define TD_CTRL_IOS     (1 << 25)
  55 #define TD_CTRL_IOC     (1 << 24)
  56 #define TD_CTRL_ACTIVE  (1 << 23)
  57 #define TD_CTRL_STALL   (1 << 22)
  58 #define TD_CTRL_BABBLE  (1 << 20)
  59 #define TD_CTRL_NAK     (1 << 19)
  60 #define TD_CTRL_TIMEOUT (1 << 18)
  61
  62 #define UHCI_PORT_SUSPEND (1 << 12)
  63 #define UHCI_PORT_RESET (1 << 9)
  64 #define UHCI_PORT_LSDA  (1 << 8)
  65 #define UHCI_PORT_RD    (1 << 6)
  66 #define UHCI_PORT_ENC   (1 << 3)
  67 #define UHCI_PORT_EN    (1 << 2)
  68 #define UHCI_PORT_CSC   (1 << 1)
  69 #define UHCI_PORT_CCS   (1 << 0)
  70
  71 #define UHCI_PORT_READ_ONLY    (0x1bb)
  72 #define UHCI_PORT_WRITE_CLEAR  (UHCI_PORT_CSC | UHCI_PORT_ENC)
  73
  74 #define FRAME_TIMER_FREQ 1000
  75
  76 #define FRAME_MAX_LOOPS  256
  77
  78 #define NB_PORTS 2
  79
  80 enum {
  81     TD_RESULT_STOP_FRAME = 10,
  82     TD_RESULT_COMPLETE,
  83     TD_RESULT_NEXT_QH,
  84     TD_RESULT_ASYNC_START,
  85     TD_RESULT_ASYNC_CONT,
  86 };
  87
  88 typedef struct UHCIState UHCIState;
  89 typedef struct UHCIAsync UHCIAsync;
  90 typedef struct UHCIQueue UHCIQueue;
  91
  92 /*
  93  * Pending async transaction.
  94  * 'packet' must be the first field because completion
  95  * handler does "(UHCIAsync *) pkt" cast.
  96  */
  97
  98 struct UHCIAsync {
  99     USBPacket packet;
 100     QEMUSGList sgl;
 101     UHCIQueue *queue;
 102     QTAILQ_ENTRY(UHCIAsync) next;
 103     uint32_t  td;
 104     uint8_t   isoc;
 105     uint8_t   done;
 106 };
 107
 108 struct UHCIQueue {
 109     uint32_t  token;
 110     UHCIState *uhci;
 111     QTAILQ_ENTRY(UHCIQueue) next;
 112     QTAILQ_HEAD(, UHCIAsync) asyncs;
 113     int8_t    valid;
 114 };
 115
 116 typedef struct UHCIPort {
 117     USBPort port;
 118     uint16_t ctrl;
 119 } UHCIPort;
 120
 121 struct UHCIState {
 122     PCIDevice dev;
 123     MemoryRegion io_bar;
 124     USBBus bus; /* Note unused when we're a companion controller */
 125     uint16_t cmd; /* cmd register */
 126     uint16_t status;
 127     uint16_t intr; /* interrupt enable register */
 128     uint16_t frnum; /* frame number */
 129     uint32_t fl_base_addr; /* frame list base address */
 130     uint8_t sof_timing;
 131     uint8_t status2; /* bit 0 and 1 are used to generate UHCI_STS_USBINT */
 132     int64_t expire_time;
 133     QEMUTimer *frame_timer;
 134     UHCIPort ports[NB_PORTS];
 135
 136     /* Interrupts that should be raised at the end of the current frame.  */
 137     uint32_t pending_int_mask;
 138
 139     /* Active packets */
 140     QTAILQ_HEAD(, UHCIQueue) queues;
 141     uint8_t num_ports_vmstate;
 142
 143     /* Properties */
 144     char *masterbus;
 145     uint32_t firstport;
 146 };
 147
 148 typedef struct UHCI_TD {
 149     uint32_t link;
 150     uint32_t ctrl; /* see TD_CTRL_xxx */
 151     uint32_t token;
 152     uint32_t buffer;
 153 } UHCI_TD;
 154
 155 typedef struct UHCI_QH {
 156     uint32_t link;
 157     uint32_t el_link;
 158 } UHCI_QH;
 159
 160 static inline int32_t uhci_queue_token(UHCI_TD *td)
 161 {
 162     /* covers ep, dev, pid -> identifies the endpoint */
 163     return td->token & 0x7ffff;
 164 }
 165
 166 static UHCIQueue *uhci_queue_get(UHCIState *s, UHCI_TD *td)
 167 {
 168     uint32_t token = uhci_queue_token(td);
 169     UHCIQueue *queue;
 170
 171     QTAILQ_FOREACH(queue, &s->queues, next) {
 172         if (queue->token == token) {
 173             return queue;
 174         }
 175     }
 176
 177     queue = g_new0(UHCIQueue, 1);
 178     queue->uhci = s;
 179     queue->token = token;
 180     QTAILQ_INIT(&queue->asyncs);
 181     QTAILQ_INSERT_HEAD(&s->queues, queue, next);
 182     trace_usb_uhci_queue_add(queue->token);
 183     return queue;
 184 }
 185
 186 static void uhci_queue_free(UHCIQueue *queue)
 187 {
 188     UHCIState *s = queue->uhci;
 189
 190     trace_usb_uhci_queue_del(queue->token);
 191     QTAILQ_REMOVE(&s->queues, queue, next);
 192     g_free(queue);
 193 }
 194
 195 static UHCIAsync *uhci_async_alloc(UHCIQueue *queue, uint32_t addr)
 196 {
 197     UHCIAsync *async = g_new0(UHCIAsync, 1);
 198
 199     async->queue = queue;
 200     async->td = addr;
 201     usb_packet_init(&async->packet);
 202     pci_dma_sglist_init(&async->sgl, &queue->uhci->dev, 1);
 203     trace_usb_uhci_packet_add(async->queue->token, async->td);
 204
 205     return async;
 206 }
 207
 208 static void uhci_async_free(UHCIAsync *async)
 209 {
 210     trace_usb_uhci_packet_del(async->queue->token, async->td);
 211     usb_packet_cleanup(&async->packet);
 212     qemu_sglist_destroy(&async->sgl);
 213     g_free(async);
 214 }
 215
 216 static void uhci_async_link(UHCIAsync *async)
 217 {
 218     UHCIQueue *queue = async->queue;
 219     QTAILQ_INSERT_TAIL(&queue->asyncs, async, next);
 220     trace_usb_uhci_packet_link_async(async->queue->token, async->td);
 221 }
 222
 223 static void uhci_async_unlink(UHCIAsync *async)
 224 {
 225     UHCIQueue *queue = async->queue;
 226     QTAILQ_REMOVE(&queue->asyncs, async, next);
 227     trace_usb_uhci_packet_unlink_async(async->queue->token, async->td);
 228 }
 229
 230 static void uhci_async_cancel(UHCIAsync *async)
 231 {
 232     trace_usb_uhci_packet_cancel(async->queue->token, async->td, async->done);
 233     if (!async->done)
 234         usb_cancel_packet(&async->packet);
 235     uhci_async_free(async);
 236 }
 237
 238 /*
 239  * Mark all outstanding async packets as invalid.
 240  * This is used for canceling them when TDs are removed by the HCD.
 241  */
 242 static void uhci_async_validate_begin(UHCIState *s)
 243 {
 244     UHCIQueue *queue;
 245
 246     QTAILQ_FOREACH(queue, &s->queues, next) {
 247         queue->valid--;
 248     }
 249 }
 250
 251 /*
 252  * Cancel async packets that are no longer valid
 253  */
 254 static void uhci_async_validate_end(UHCIState *s)
 255 {
 256     UHCIQueue *queue, *n;
 257     UHCIAsync *async;
 258
 259     QTAILQ_FOREACH_SAFE(queue, &s->queues, next, n) {
 260         if (queue->valid > 0) {
 261             continue;
 262         }
 263         while (!QTAILQ_EMPTY(&queue->asyncs)) {
 264             async = QTAILQ_FIRST(&queue->asyncs);
 265             uhci_async_unlink(async);
 266             uhci_async_cancel(async);
 267         }
 268         uhci_queue_free(queue);
 269     }
 270 }
 271
 272 static void uhci_async_cancel_device(UHCIState *s, USBDevice *dev)
 273 {
 274     UHCIQueue *queue;
 275     UHCIAsync *curr, *n;
 276
 277     QTAILQ_FOREACH(queue, &s->queues, next) {
 278         QTAILQ_FOREACH_SAFE(curr, &queue->asyncs, next, n) {
 279             if (!usb_packet_is_inflight(&curr->packet) ||
 280                 curr->packet.ep->dev != dev) {
 281                 continue;
 282             }
 283             uhci_async_unlink(curr);
 284             uhci_async_cancel(curr);
 285         }
 286     }
 287 }
 288
 289 static void uhci_async_cancel_all(UHCIState *s)
 290 {
 291     UHCIQueue *queue;
 292     UHCIAsync *curr, *n;
 293
 294     QTAILQ_FOREACH(queue, &s->queues, next) {
 295         QTAILQ_FOREACH_SAFE(curr, &queue->asyncs, next, n) {
 296             uhci_async_unlink(curr);
 297             uhci_async_cancel(curr);
 298         }
 299         uhci_queue_free(queue);
 300     }
 301 }
 302
 303 static UHCIAsync *uhci_async_find_td(UHCIState *s, uint32_t addr, UHCI_TD *td)
 304 {
 305     uint32_t token = uhci_queue_token(td);
 306     UHCIQueue *queue;
 307     UHCIAsync *async;
 308
 309     QTAILQ_FOREACH(queue, &s->queues, next) {
 310         if (queue->token == token) {
 311             break;
 312         }
 313     }
 314     if (queue == NULL) {
 315         return NULL;
 316     }
 317
 318     QTAILQ_FOREACH(async, &queue->asyncs, next) {
 319         if (async->td == addr) {
 320             return async;
 321         }
 322     }
 323
 324     return NULL;
 325 }
 326
 327 static void uhci_update_irq(UHCIState *s)
 328 {
 329     int level;
 330     if (((s->status2 & 1) && (s->intr & (1 << 2))) ||
 331         ((s->status2 & 2) && (s->intr & (1 << 3))) ||
 332         ((s->status & UHCI_STS_USBERR) && (s->intr & (1 << 0))) ||
 333         ((s->status & UHCI_STS_RD) && (s->intr & (1 << 1))) ||
 334         (s->status & UHCI_STS_HSERR) ||
 335         (s->status & UHCI_STS_HCPERR)) {
 336         level = 1;
 337     } else {
 338         level = 0;
 339     }
 340     qemu_set_irq(s->dev.irq[3], level);
 341 }
 342
 343 static void uhci_reset(void *opaque)
 344 {
 345     UHCIState *s = opaque;
 346     uint8_t *pci_conf;
 347     int i;
 348     UHCIPort *port;
 349
 350     trace_usb_uhci_reset();
 351
 352     pci_conf = s->dev.config;
 353
 354     pci_conf[0x6a] = 0x01; /* usb clock */
 355     pci_conf[0x6b] = 0x00;
 356     s->cmd = 0;
 357     s->status = 0;
 358     s->status2 = 0;
 359     s->intr = 0;
 360     s->fl_base_addr = 0;
 361     s->sof_timing = 64;
 362
 363     for(i = 0; i < NB_PORTS; i++) {
 364         port = &s->ports[i];
 365         port->ctrl = 0x0080;
 366         if (port->port.dev && port->port.dev->attached) {
 367             usb_port_reset(&port->port);
 368         }
 369     }
 370
 371     uhci_async_cancel_all(s);
 372 }
 373
 374 static void uhci_pre_save(void *opaque)
 375 {
 376     UHCIState *s = opaque;
 377
 378     uhci_async_cancel_all(s);
 379 }
 380
 381 static const VMStateDescription vmstate_uhci_port = {
 382     .name = "uhci port",
 383     .version_id = 1,
 384     .minimum_version_id = 1,
 385     .minimum_version_id_old = 1,
 386     .fields      = (VMStateField []) {
 387         VMSTATE_UINT16(ctrl, UHCIPort),
 388         VMSTATE_END_OF_LIST()
 389     }
 390 };
 391
 392 static const VMStateDescription vmstate_uhci = {
 393     .name = "uhci",
 394     .version_id = 2,
 395     .minimum_version_id = 1,
 396     .minimum_version_id_old = 1,
 397     .pre_save = uhci_pre_save,
 398     .fields      = (VMStateField []) {
 399         VMSTATE_PCI_DEVICE(dev, UHCIState),
 400         VMSTATE_UINT8_EQUAL(num_ports_vmstate, UHCIState),
 401         VMSTATE_STRUCT_ARRAY(ports, UHCIState, NB_PORTS, 1,
 402                              vmstate_uhci_port, UHCIPort),
 403         VMSTATE_UINT16(cmd, UHCIState),
 404         VMSTATE_UINT16(status, UHCIState),
 405         VMSTATE_UINT16(intr, UHCIState),
 406         VMSTATE_UINT16(frnum, UHCIState),
 407         VMSTATE_UINT32(fl_base_addr, UHCIState),
 408         VMSTATE_UINT8(sof_timing, UHCIState),
 409         VMSTATE_UINT8(status2, UHCIState),
 410         VMSTATE_TIMER(frame_timer, UHCIState),
 411         VMSTATE_INT64_V(expire_time, UHCIState, 2),
 412         VMSTATE_END_OF_LIST()
 413     }
 414 };
 415
 416 static void uhci_ioport_writeb(void *opaque, uint32_t addr, uint32_t val)
 417 {
 418     UHCIState *s = opaque;
 419
 420     addr &= 0x1f;
 421     switch(addr) {
 422     case 0x0c:
 423         s->sof_timing = val;
 424         break;
 425     }
 426 }
 427
 428 static uint32_t uhci_ioport_readb(void *opaque, uint32_t addr)
 429 {
 430     UHCIState *s = opaque;
 431     uint32_t val;
 432
 433     addr &= 0x1f;
 434     switch(addr) {
 435     case 0x0c:
 436         val = s->sof_timing;
 437         break;
 438     default:
 439         val = 0xff;
 440         break;
 441     }
 442     return val;
 443 }
 444
 445 static void uhci_ioport_writew(void *opaque, uint32_t addr, uint32_t val)
 446 {
 447     UHCIState *s = opaque;
 448
 449     addr &= 0x1f;
 450     trace_usb_uhci_mmio_writew(addr, val);
 451
 452     switch(addr) {
 453     case 0x00:
 454         if ((val & UHCI_CMD_RS) && !(s->cmd & UHCI_CMD_RS)) {
 455             /* start frame processing */
 456             trace_usb_uhci_schedule_start();
 457             s->expire_time = qemu_get_clock_ns(vm_clock) +
 458                 (get_ticks_per_sec() / FRAME_TIMER_FREQ);
 459             qemu_mod_timer(s->frame_timer, qemu_get_clock_ns(vm_clock));
 460             s->status &= ~UHCI_STS_HCHALTED;
 461         } else if (!(val & UHCI_CMD_RS)) {
 462             s->status |= UHCI_STS_HCHALTED;
 463         }
 464         if (val & UHCI_CMD_GRESET) {
 465             UHCIPort *port;
 466             int i;
 467
 468             /* send reset on the USB bus */
 469             for(i = 0; i < NB_PORTS; i++) {
 470                 port = &s->ports[i];
 471                 usb_device_reset(port->port.dev);
 472             }
 473             uhci_reset(s);
 474             return;
 475         }
 476         if (val & UHCI_CMD_HCRESET) {
 477             uhci_reset(s);
 478             return;
 479         }
 480         s->cmd = val;
 481         break;
 482     case 0x02:
 483         s->status &= ~val;
 484         /* XXX: the chip spec is not coherent, so we add a hidden
 485            register to distinguish between IOC and SPD */
 486         if (val & UHCI_STS_USBINT)
 487             s->status2 = 0;
 488         uhci_update_irq(s);
 489         break;
 490     case 0x04:
 491         s->intr = val;
 492         uhci_update_irq(s);
 493         break;
 494     case 0x06:
 495         if (s->status & UHCI_STS_HCHALTED)
 496             s->frnum = val & 0x7ff;
 497         break;
 498     case 0x10 ... 0x1f:
 499         {
 500             UHCIPort *port;
 501             USBDevice *dev;
 502             int n;
 503
 504             n = (addr >> 1) & 7;
 505             if (n >= NB_PORTS)
 506                 return;
 507             port = &s->ports[n];
 508             dev = port->port.dev;
 509             if (dev && dev->attached) {
 510                 /* port reset */
 511                 if ( (val & UHCI_PORT_RESET) &&
 512                      !(port->ctrl & UHCI_PORT_RESET) ) {
 513                     usb_device_reset(dev);
 514                 }
 515             }
 516             port->ctrl &= UHCI_PORT_READ_ONLY;
 517             port->ctrl |= (val & ~UHCI_PORT_READ_ONLY);
 518             /* some bits are reset when a '1' is written to them */
 519             port->ctrl &= ~(val & UHCI_PORT_WRITE_CLEAR);
 520         }
 521         break;
 522     }
 523 }
 524
 525 static uint32_t uhci_ioport_readw(void *opaque, uint32_t addr)
 526 {
 527     UHCIState *s = opaque;
 528     uint32_t val;
 529
 530     addr &= 0x1f;
 531     switch(addr) {
 532     case 0x00:
 533         val = s->cmd;
 534         break;
 535     case 0x02:
 536         val = s->status;
 537         break;
 538     case 0x04:
 539         val = s->intr;
 540         break;
 541     case 0x06:
 542         val = s->frnum;
 543         break;
 544     case 0x10 ... 0x1f:
 545         {
 546             UHCIPort *port;
 547             int n;
 548             n = (addr >> 1) & 7;
 549             if (n >= NB_PORTS)
 550                 goto read_default;
 551             port = &s->ports[n];
 552             val = port->ctrl;
 553         }
 554         break;
 555     default:
 556     read_default:
 557         val = 0xff7f; /* disabled port */
 558         break;
 559     }
 560
 561     trace_usb_uhci_mmio_readw(addr, val);
 562
 563     return val;
 564 }
 565
 566 static void uhci_ioport_writel(void *opaque, uint32_t addr, uint32_t val)
 567 {
 568     UHCIState *s = opaque;
 569
 570     addr &= 0x1f;
 571     trace_usb_uhci_mmio_writel(addr, val);
 572
 573     switch(addr) {
 574     case 0x08:
 575         s->fl_base_addr = val & ~0xfff;
 576         break;
 577     }
 578 }
 579
 580 static uint32_t uhci_ioport_readl(void *opaque, uint32_t addr)
 581 {
 582     UHCIState *s = opaque;
 583     uint32_t val;
 584
 585     addr &= 0x1f;
 586     switch(addr) {
 587     case 0x08:
 588         val = s->fl_base_addr;
 589         break;
 590     default:
 591         val = 0xffffffff;
 592         break;
 593     }
 594     trace_usb_uhci_mmio_readl(addr, val);
 595     return val;
 596 }
 597
 598 /* signal resume if controller suspended */
 599 static void uhci_resume (void *opaque)
 600 {
 601     UHCIState *s = (UHCIState *)opaque;
 602
 603     if (!s)
 604         return;
 605
 606     if (s->cmd & UHCI_CMD_EGSM) {
 607         s->cmd |= UHCI_CMD_FGR;
 608         s->status |= UHCI_STS_RD;
 609         uhci_update_irq(s);
 610     }
 611 }
 612
 613 static void uhci_attach(USBPort *port1)
 614 {
 615     UHCIState *s = port1->opaque;
 616     UHCIPort *port = &s->ports[port1->index];
 617
 618     /* set connect status */
 619     port->ctrl |= UHCI_PORT_CCS | UHCI_PORT_CSC;
 620
 621     /* update speed */
 622     if (port->port.dev->speed == USB_SPEED_LOW) {
 623         port->ctrl |= UHCI_PORT_LSDA;
 624     } else {
 625         port->ctrl &= ~UHCI_PORT_LSDA;
 626     }
 627
 628     uhci_resume(s);
 629 }
 630
 631 static void uhci_detach(USBPort *port1)
 632 {
 633     UHCIState *s = port1->opaque;
 634     UHCIPort *port = &s->ports[port1->index];
 635
 636     uhci_async_cancel_device(s, port1->dev);
 637
 638     /* set connect status */
 639     if (port->ctrl & UHCI_PORT_CCS) {
 640         port->ctrl &= ~UHCI_PORT_CCS;
 641         port->ctrl |= UHCI_PORT_CSC;
 642     }
 643     /* disable port */
 644     if (port->ctrl & UHCI_PORT_EN) {
 645         port->ctrl &= ~UHCI_PORT_EN;
 646         port->ctrl |= UHCI_PORT_ENC;
 647     }
 648
 649     uhci_resume(s);
 650 }
 651
 652 static void uhci_child_detach(USBPort *port1, USBDevice *child)
 653 {
 654     UHCIState *s = port1->opaque;
 655
 656     uhci_async_cancel_device(s, child);
 657 }
 658
 659 static void uhci_wakeup(USBPort *port1)
 660 {
 661     UHCIState *s = port1->opaque;
 662     UHCIPort *port = &s->ports[port1->index];
 663
 664     if (port->ctrl & UHCI_PORT_SUSPEND && !(port->ctrl & UHCI_PORT_RD)) {
 665         port->ctrl |= UHCI_PORT_RD;
 666         uhci_resume(s);
 667     }
 668 }
 669
 670 static USBDevice *uhci_find_device(UHCIState *s, uint8_t addr)
 671 {
 672     USBDevice *dev;
 673     int i;
 674
 675     for (i = 0; i < NB_PORTS; i++) {
 676         UHCIPort *port = &s->ports[i];
 677         if (!(port->ctrl & UHCI_PORT_EN)) {
 678             continue;
 679         }
 680         dev = usb_find_device(&port->port, addr);
 681         if (dev != NULL) {
 682             return dev;
 683         }
 684     }
 685     return NULL;
 686 }
 687
 688 static void uhci_async_complete(USBPort *port, USBPacket *packet);
 689 static void uhci_process_frame(UHCIState *s);
 690
 691 /* return -1 if fatal error (frame must be stopped)
 692           0 if TD successful
 693           1 if TD unsuccessful or inactive
 694 */
 695 static int uhci_complete_td(UHCIState *s, UHCI_TD *td, UHCIAsync *async, uint32_t *int_mask)
 696 {
 697     int len = 0, max_len, err, ret;
 698     uint8_t pid;
 699
 700     max_len = ((td->token >> 21) + 1) & 0x7ff;
 701     pid = td->token & 0xff;
 702
 703     ret = async->packet.result;
 704
 705     if (td->ctrl & TD_CTRL_IOS)
 706         td->ctrl &= ~TD_CTRL_ACTIVE;
 707
 708     if (ret < 0)
 709         goto out;
 710
 711     len = async->packet.result;
 712     td->ctrl = (td->ctrl & ~0x7ff) | ((len - 1) & 0x7ff);
 713
 714     /* The NAK bit may have been set by a previous frame, so clear it
 715        here.  The docs are somewhat unclear, but win2k relies on this
 716        behavior.  */
 717     td->ctrl &= ~(TD_CTRL_ACTIVE | TD_CTRL_NAK);
 718     if (td->ctrl & TD_CTRL_IOC)
 719         *int_mask |= 0x01;
 720
 721     if (pid == USB_TOKEN_IN) {
 722         if (len > max_len) {
 723             ret = USB_RET_BABBLE;
 724             goto out;
 725         }
 726
 727         if ((td->ctrl & TD_CTRL_SPD) && len < max_len) {
 728             *int_mask |= 0x02;
 729             /* short packet: do not update QH */
 730             trace_usb_uhci_packet_complete_shortxfer(async->queue->token,
 731                                                     async->td);
 732             return TD_RESULT_NEXT_QH;
 733         }
 734     }
 735
 736     /* success */
 737     trace_usb_uhci_packet_complete_success(async->queue->token, async->td);
 738     return TD_RESULT_COMPLETE;
 739
 740 out:
 741     switch(ret) {
 742     case USB_RET_STALL:
 743         td->ctrl |= TD_CTRL_STALL;
 744         td->ctrl &= ~TD_CTRL_ACTIVE;
 745         s->status |= UHCI_STS_USBERR;
 746         if (td->ctrl & TD_CTRL_IOC) {
 747             *int_mask |= 0x01;
 748         }
 749         uhci_update_irq(s);
 750         trace_usb_uhci_packet_complete_stall(async->queue->token, async->td);
 751         return TD_RESULT_NEXT_QH;
 752
 753     case USB_RET_BABBLE:
 754         td->ctrl |= TD_CTRL_BABBLE | TD_CTRL_STALL;
 755         td->ctrl &= ~TD_CTRL_ACTIVE;
 756         s->status |= UHCI_STS_USBERR;
 757         if (td->ctrl & TD_CTRL_IOC) {
 758             *int_mask |= 0x01;
 759         }
 760         uhci_update_irq(s);
 761         /* frame interrupted */
 762         trace_usb_uhci_packet_complete_babble(async->queue->token, async->td);
 763         return TD_RESULT_STOP_FRAME;
 764
 765     case USB_RET_NAK:
 766         td->ctrl |= TD_CTRL_NAK;
 767         if (pid == USB_TOKEN_SETUP)
 768             break;
 769         return TD_RESULT_NEXT_QH;
 770
 771     case USB_RET_IOERROR:
 772     case USB_RET_NODEV:
 773     default:
 774         break;
 775     }
 776
 777     /* Retry the TD if error count is not zero */
 778
 779     td->ctrl |= TD_CTRL_TIMEOUT;
 780     err = (td->ctrl >> TD_CTRL_ERROR_SHIFT) & 3;
 781     if (err != 0) {
 782         err--;
 783         if (err == 0) {
 784             td->ctrl &= ~TD_CTRL_ACTIVE;
 785             s->status |= UHCI_STS_USBERR;
 786             if (td->ctrl & TD_CTRL_IOC)
 787                 *int_mask |= 0x01;
 788             uhci_update_irq(s);
 789             trace_usb_uhci_packet_complete_error(async->queue->token,
 790                                                  async->td);
 791         }
 792     }
 793     td->ctrl = (td->ctrl & ~(3 << TD_CTRL_ERROR_SHIFT)) |
 794         (err << TD_CTRL_ERROR_SHIFT);
 795     return TD_RESULT_NEXT_QH;
 796 }
 797
 798 static int uhci_handle_td(UHCIState *s, uint32_t addr, UHCI_TD *td, uint32_t *int_mask)
 799 {
 800     UHCIAsync *async;
 801     int len = 0, max_len;
 802     uint8_t pid;
 803     USBDevice *dev;
 804     USBEndpoint *ep;
 805
 806     /* Is active ? */
 807     if (!(td->ctrl & TD_CTRL_ACTIVE))
 808         return TD_RESULT_NEXT_QH;
 809
 810     async = uhci_async_find_td(s, addr, td);
 811     if (async) {
 812         /* Already submitted */
 813         async->queue->valid = 32;
 814
 815         if (!async->done)
 816             return TD_RESULT_ASYNC_CONT;
 817
 818         uhci_async_unlink(async);
 819         goto done;
 820     }
 821
 822     /* Allocate new packet */
 823     async = uhci_async_alloc(uhci_queue_get(s, td), addr);
 824
 825     /* valid needs to be large enough to handle 10 frame delay
 826      * for initial isochronous requests
 827      */
 828     async->queue->valid = 32;
 829     async->isoc  = td->ctrl & TD_CTRL_IOS;
 830
 831     max_len = ((td->token >> 21) + 1) & 0x7ff;
 832     pid = td->token & 0xff;
 833
 834     dev = uhci_find_device(s, (td->token >> 8) & 0x7f);
 835     ep = usb_ep_get(dev, pid, (td->token >> 15) & 0xf);
 836     usb_packet_setup(&async->packet, pid, ep);
 837     qemu_sglist_add(&async->sgl, td->buffer, max_len);
 838     usb_packet_map(&async->packet, &async->sgl);
 839
 840     switch(pid) {
 841     case USB_TOKEN_OUT:
 842     case USB_TOKEN_SETUP:
 843         len = usb_handle_packet(dev, &async->packet);
 844         if (len >= 0)
 845             len = max_len;
 846         break;
 847
 848     case USB_TOKEN_IN:
 849         len = usb_handle_packet(dev, &async->packet);
 850         break;
 851
 852     default:
 853         /* invalid pid : frame interrupted */
 854         uhci_async_free(async);
 855         s->status |= UHCI_STS_HCPERR;
 856         uhci_update_irq(s);
 857         return TD_RESULT_STOP_FRAME;
 858     }
 859
 860     if (len == USB_RET_ASYNC) {
 861         uhci_async_link(async);
 862         return TD_RESULT_ASYNC_START;
 863     }
 864
 865     async->packet.result = len;
 866
 867 done:
 868     len = uhci_complete_td(s, td, async, int_mask);
 869     usb_packet_unmap(&async->packet);
 870     uhci_async_free(async);
 871     return len;
 872 }
 873
 874 static void uhci_async_complete(USBPort *port, USBPacket *packet)
 875 {
 876     UHCIAsync *async = container_of(packet, UHCIAsync, packet);
 877     UHCIState *s = async->queue->uhci;
 878
 879     if (async->isoc) {
 880         UHCI_TD td;
 881         uint32_t link = async->td;
 882         uint32_t int_mask = 0, val;
 883
 884         pci_dma_read(&s->dev, link & ~0xf, &td, sizeof(td));
 885         le32_to_cpus(&td.link);
 886         le32_to_cpus(&td.ctrl);
 887         le32_to_cpus(&td.token);
 888         le32_to_cpus(&td.buffer);
 889
 890         uhci_async_unlink(async);
 891         uhci_complete_td(s, &td, async, &int_mask);
 892         s->pending_int_mask |= int_mask;
 893
 894         /* update the status bits of the TD */
 895         val = cpu_to_le32(td.ctrl);
 896         pci_dma_write(&s->dev, (link & ~0xf) + 4, &val, sizeof(val));
 897         uhci_async_free(async);
 898     } else {
 899         async->done = 1;
 900         uhci_process_frame(s);
 901     }
 902 }
 903
 904 static int is_valid(uint32_t link)
 905 {
 906     return (link & 1) == 0;
 907 }
 908
 909 static int is_qh(uint32_t link)
 910 {
 911     return (link & 2) != 0;
 912 }
 913
 914 static int depth_first(uint32_t link)
 915 {
 916     return (link & 4) != 0;
 917 }
 918
 919 /* QH DB used for detecting QH loops */
 920 #define UHCI_MAX_QUEUES 128
 921 typedef struct {
 922     uint32_t addr[UHCI_MAX_QUEUES];
 923     int      count;
 924 } QhDb;
 925
 926 static void qhdb_reset(QhDb *db)
 927 {
 928     db->count = 0;
 929 }
 930
 931 /* Add QH to DB. Returns 1 if already present or DB is full. */
 932 static int qhdb_insert(QhDb *db, uint32_t addr)
 933 {
 934     int i;
 935     for (i = 0; i < db->count; i++)
 936         if (db->addr[i] == addr)
 937             return 1;
 938
 939     if (db->count >= UHCI_MAX_QUEUES)
 940         return 1;
 941
 942     db->addr[db->count++] = addr;
 943     return 0;
 944 }
 945
 946 static void uhci_fill_queue(UHCIState *s, UHCI_TD *td)
 947 {
 948     uint32_t int_mask = 0;
 949     uint32_t plink = td->link;
 950     uint32_t token = uhci_queue_token(td);
 951     UHCI_TD ptd;
 952     int ret;
 953
 954     while (is_valid(plink)) {
 955         pci_dma_read(&s->dev, plink & ~0xf, &ptd, sizeof(ptd));
 956         le32_to_cpus(&ptd.link);
 957         le32_to_cpus(&ptd.ctrl);
 958         le32_to_cpus(&ptd.token);
 959         le32_to_cpus(&ptd.buffer);
 960         if (!(ptd.ctrl & TD_CTRL_ACTIVE)) {
 961             break;
 962         }
 963         if (uhci_queue_token(&ptd) != token) {
 964             break;
 965         }
 966         trace_usb_uhci_td_queue(plink & ~0xf, ptd.ctrl, ptd.token);
 967         ret = uhci_handle_td(s, plink, &ptd, &int_mask);
 968         assert(ret == TD_RESULT_ASYNC_START);
 969         assert(int_mask == 0);
 970         plink = ptd.link;
 971     }
 972 }
 973
 974 static void uhci_process_frame(UHCIState *s)
 975 {
 976     uint32_t frame_addr, link, old_td_ctrl, val, int_mask;
 977     uint32_t curr_qh, td_count = 0, bytes_count = 0;
 978     int cnt, ret;
 979     UHCI_TD td;
 980     UHCI_QH qh;
 981     QhDb qhdb;
 982
 983     frame_addr = s->fl_base_addr + ((s->frnum & 0x3ff) << 2);
 984
 985     pci_dma_read(&s->dev, frame_addr, &link, 4);
 986     le32_to_cpus(&link);
 987
 988     int_mask = 0;
 989     curr_qh  = 0;
 990
 991     qhdb_reset(&qhdb);
 992
 993     for (cnt = FRAME_MAX_LOOPS; is_valid(link) && cnt; cnt--) {
 994         if (is_qh(link)) {
 995             /* QH */
 996             trace_usb_uhci_qh_load(link & ~0xf);
 997
 998             if (qhdb_insert(&qhdb, link)) {
 999                 /*
1000                  * We're going in circles. Which is not a bug because
1001                  * HCD is allowed to do that as part of the BW management.
1002                  *
1003                  * Stop processing here if
1004                  *  (a) no transaction has been done since we've been
1005                  *      here last time, or
1006                  *  (b) we've reached the usb 1.1 bandwidth, which is
1007                  *      1280 bytes/frame.
1008                  */
1009                 if (td_count == 0) {
1010                     trace_usb_uhci_frame_loop_stop_idle();
1011                     break;
1012                 } else if (bytes_count >= 1280) {
1013                     trace_usb_uhci_frame_loop_stop_bandwidth();
1014                     break;
1015                 } else {
1016                     trace_usb_uhci_frame_loop_continue();
1017                     td_count = 0;
1018                     qhdb_reset(&qhdb);
1019                     qhdb_insert(&qhdb, link);
1020                 }
1021             }
1022
1023             pci_dma_read(&s->dev, link & ~0xf, &qh, sizeof(qh));
1024             le32_to_cpus(&qh.link);
1025             le32_to_cpus(&qh.el_link);
1026
1027             if (!is_valid(qh.el_link)) {
1028                 /* QH w/o elements */
1029                 curr_qh = 0;
1030                 link = qh.link;
1031             } else {
1032                 /* QH with elements */
1033                 curr_qh = link;
1034                 link = qh.el_link;
1035             }
1036             continue;
1037         }
1038
1039         /* TD */
1040         pci_dma_read(&s->dev, link & ~0xf, &td, sizeof(td));
1041         le32_to_cpus(&td.link);
1042         le32_to_cpus(&td.ctrl);
1043         le32_to_cpus(&td.token);
1044         le32_to_cpus(&td.buffer);
1045         trace_usb_uhci_td_load(curr_qh & ~0xf, link & ~0xf, td.ctrl, td.token);
1046
1047         old_td_ctrl = td.ctrl;
1048         ret = uhci_handle_td(s, link, &td, &int_mask);
1049         if (old_td_ctrl != td.ctrl) {
1050             /* update the status bits of the TD */
1051             val = cpu_to_le32(td.ctrl);
1052             pci_dma_write(&s->dev, (link & ~0xf) + 4, &val, sizeof(val));
1053         }
1054
1055         switch (ret) {
1056         case TD_RESULT_STOP_FRAME: /* interrupted frame */
1057             goto out;
1058
1059         case TD_RESULT_NEXT_QH:
1060         case TD_RESULT_ASYNC_CONT:
1061             trace_usb_uhci_td_nextqh(curr_qh & ~0xf, link & ~0xf);
1062             link = curr_qh ? qh.link : td.link;
1063             continue;
1064
1065         case TD_RESULT_ASYNC_START:
1066             trace_usb_uhci_td_async(curr_qh & ~0xf, link & ~0xf);
1067             if (is_valid(td.link)) {
1068                 uhci_fill_queue(s, &td);
1069             }
1070             link = curr_qh ? qh.link : td.link;
1071             continue;
1072
1073         case TD_RESULT_COMPLETE:
1074             trace_usb_uhci_td_complete(curr_qh & ~0xf, link & ~0xf);
1075             link = td.link;
1076             td_count++;
1077             bytes_count += (td.ctrl & 0x7ff) + 1;
1078
1079             if (curr_qh) {
1080                 /* update QH element link */
1081                 qh.el_link = link;
1082                 val = cpu_to_le32(qh.el_link);
1083                 pci_dma_write(&s->dev, (curr_qh & ~0xf) + 4, &val, sizeof(val));
1084
1085                 if (!depth_first(link)) {
1086                     /* done with this QH */
1087                     curr_qh = 0;
1088                     link    = qh.link;
1089                 }
1090             }
1091             break;
1092
1093         default:
1094             assert(!"unknown return code");
1095         }
1096
1097         /* go to the next entry */
1098     }
1099
1100 out:
1101     s->pending_int_mask |= int_mask;
1102 }
1103
1104 static void uhci_frame_timer(void *opaque)
1105 {
1106     UHCIState *s = opaque;
1107
1108     /* prepare the timer for the next frame */
1109     s->expire_time += (get_ticks_per_sec() / FRAME_TIMER_FREQ);
1110
1111     if (!(s->cmd & UHCI_CMD_RS)) {
1112         /* Full stop */
1113         trace_usb_uhci_schedule_stop();
1114         qemu_del_timer(s->frame_timer);
1115         uhci_async_cancel_all(s);
1116         /* set hchalted bit in status - UHCI11D 2.1.2 */
1117         s->status |= UHCI_STS_HCHALTED;
1118         return;
1119     }
1120
1121     /* Complete the previous frame */
1122     if (s->pending_int_mask) {
1123         s->status2 |= s->pending_int_mask;
1124         s->status  |= UHCI_STS_USBINT;
1125         uhci_update_irq(s);
1126     }
1127     s->pending_int_mask = 0;
1128
1129     /* Start new frame */
1130     s->frnum = (s->frnum + 1) & 0x7ff;
1131
1132     trace_usb_uhci_frame_start(s->frnum);
1133
1134     uhci_async_validate_begin(s);
1135
1136     uhci_process_frame(s);
1137
1138     uhci_async_validate_end(s);
1139
1140     qemu_mod_timer(s->frame_timer, s->expire_time);
1141 }
1142
1143 static const MemoryRegionPortio uhci_portio[] = {
1144     { 0, 32, 2, .write = uhci_ioport_writew, },
1145     { 0, 32, 2, .read = uhci_ioport_readw, },
1146     { 0, 32, 4, .write = uhci_ioport_writel, },
1147     { 0, 32, 4, .read = uhci_ioport_readl, },
1148     { 0, 32, 1, .write = uhci_ioport_writeb, },
1149     { 0, 32, 1, .read = uhci_ioport_readb, },
1150     PORTIO_END_OF_LIST()
1151 };
1152
1153 static const MemoryRegionOps uhci_ioport_ops = {
1154     .old_portio = uhci_portio,
1155 };
1156
1157 static USBPortOps uhci_port_ops = {
1158     .attach = uhci_attach,
1159     .detach = uhci_detach,
1160     .child_detach = uhci_child_detach,
1161     .wakeup = uhci_wakeup,
1162     .complete = uhci_async_complete,
1163 };
1164
1165 static USBBusOps uhci_bus_ops = {
1166 };
1167
1168 static int usb_uhci_common_initfn(PCIDevice *dev)
1169 {
1170     UHCIState *s = DO_UPCAST(UHCIState, dev, dev);
1171     uint8_t *pci_conf = s->dev.config;
1172     int i;
1173
1174     pci_conf[PCI_CLASS_PROG] = 0x00;
1175     /* TODO: reset value should be 0. */
1176     pci_conf[PCI_INTERRUPT_PIN] = 4; /* interrupt pin D */
1177     pci_conf[USB_SBRN] = USB_RELEASE_1; // release number
1178
1179     if (s->masterbus) {
1180         USBPort *ports[NB_PORTS];
1181         for(i = 0; i < NB_PORTS; i++) {
1182             ports[i] = &s->ports[i].port;
1183         }
1184         if (usb_register_companion(s->masterbus, ports, NB_PORTS,
1185                 s->firstport, s, &uhci_port_ops,
1186                 USB_SPEED_MASK_LOW | USB_SPEED_MASK_FULL) != 0) {
1187             return -1;
1188         }
1189     } else {
1190         usb_bus_new(&s->bus, &uhci_bus_ops, &s->dev.qdev);
1191         for (i = 0; i < NB_PORTS; i++) {
1192             usb_register_port(&s->bus, &s->ports[i].port, s, i, &uhci_port_ops,
1193                               USB_SPEED_MASK_LOW | USB_SPEED_MASK_FULL);
1194         }
1195     }
1196     s->frame_timer = qemu_new_timer_ns(vm_clock, uhci_frame_timer, s);
1197     s->num_ports_vmstate = NB_PORTS;
1198     QTAILQ_INIT(&s->queues);
1199
1200     qemu_register_reset(uhci_reset, s);
1201
1202     memory_region_init_io(&s->io_bar, &uhci_ioport_ops, s, "uhci", 0x20);
1203     /* Use region 4 for consistency with real hardware.  BSD guests seem
1204        to rely on this.  */
1205     pci_register_bar(&s->dev, 4, PCI_BASE_ADDRESS_SPACE_IO, &s->io_bar);
1206
1207     return 0;
1208 }
1209
1210 static int usb_uhci_vt82c686b_initfn(PCIDevice *dev)
1211 {
1212     UHCIState *s = DO_UPCAST(UHCIState, dev, dev);
1213     uint8_t *pci_conf = s->dev.config;
1214
1215     /* USB misc control 1/2 */
1216     pci_set_long(pci_conf + 0x40,0x00001000);
1217     /* PM capability */
1218     pci_set_long(pci_conf + 0x80,0x00020001);
1219     /* USB legacy support  */
1220     pci_set_long(pci_conf + 0xc0,0x00002000);
1221
1222     return usb_uhci_common_initfn(dev);
1223 }
1224
1225 static int usb_uhci_exit(PCIDevice *dev)
1226 {
1227     UHCIState *s = DO_UPCAST(UHCIState, dev, dev);
1228
1229     memory_region_destroy(&s->io_bar);
1230     return 0;
1231 }
1232
1233 static Property uhci_properties[] = {
1234     DEFINE_PROP_STRING("masterbus", UHCIState, masterbus),
1235     DEFINE_PROP_UINT32("firstport", UHCIState, firstport, 0),
1236     DEFINE_PROP_END_OF_LIST(),
1237 };
1238
1239 static void piix3_uhci_class_init(ObjectClass *klass, void *data)
1240 {
1241     DeviceClass *dc = DEVICE_CLASS(klass);
1242     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
1243
1244     k->init = usb_uhci_common_initfn;
1245     k->exit = usb_uhci_exit;
1246     k->vendor_id = PCI_VENDOR_ID_INTEL;
1247     k->device_id = PCI_DEVICE_ID_INTEL_82371SB_2;
1248     k->revision = 0x01;
1249     k->class_id = PCI_CLASS_SERIAL_USB;
1250     dc->vmsd = &vmstate_uhci;
1251     dc->props = uhci_properties;
1252 }
1253
1254 static TypeInfo piix3_uhci_info = {
1255     .name          = "piix3-usb-uhci",
1256     .parent        = TYPE_PCI_DEVICE,
1257     .instance_size = sizeof(UHCIState),
1258     .class_init    = piix3_uhci_class_init,
1259 };
1260
1261 static void piix4_uhci_class_init(ObjectClass *klass, void *data)
1262 {
1263     DeviceClass *dc = DEVICE_CLASS(klass);
1264     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
1265
1266     k->init = usb_uhci_common_initfn;
1267     k->exit = usb_uhci_exit;
1268     k->vendor_id = PCI_VENDOR_ID_INTEL;
1269     k->device_id = PCI_DEVICE_ID_INTEL_82371AB_2;
1270     k->revision = 0x01;
1271     k->class_id = PCI_CLASS_SERIAL_USB;
1272     dc->vmsd = &vmstate_uhci;
1273     dc->props = uhci_properties;
1274 }
1275
1276 static TypeInfo piix4_uhci_info = {
1277     .name          = "piix4-usb-uhci",
1278     .parent        = TYPE_PCI_DEVICE,
1279     .instance_size = sizeof(UHCIState),
1280     .class_init    = piix4_uhci_class_init,
1281 };
1282
1283 static void vt82c686b_uhci_class_init(ObjectClass *klass, void *data)
1284 {
1285     DeviceClass *dc = DEVICE_CLASS(klass);
1286     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
1287
1288     k->init = usb_uhci_vt82c686b_initfn;
1289     k->exit = usb_uhci_exit;
1290     k->vendor_id = PCI_VENDOR_ID_VIA;
1291     k->device_id = PCI_DEVICE_ID_VIA_UHCI;
1292     k->revision = 0x01;
1293     k->class_id = PCI_CLASS_SERIAL_USB;
1294     dc->vmsd = &vmstate_uhci;
1295     dc->props = uhci_properties;
1296 }
1297
1298 static TypeInfo vt82c686b_uhci_info = {
1299     .name          = "vt82c686b-usb-uhci",
1300     .parent        = TYPE_PCI_DEVICE,
1301     .instance_size = sizeof(UHCIState),
1302     .class_init    = vt82c686b_uhci_class_init,
1303 };
1304
1305 static void ich9_uhci1_class_init(ObjectClass *klass, void *data)
1306 {
1307     DeviceClass *dc = DEVICE_CLASS(klass);
1308     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
1309
1310     k->init = usb_uhci_common_initfn;
1311     k->vendor_id = PCI_VENDOR_ID_INTEL;
1312     k->device_id = PCI_DEVICE_ID_INTEL_82801I_UHCI1;
1313     k->revision = 0x03;
1314     k->class_id = PCI_CLASS_SERIAL_USB;
1315     dc->vmsd = &vmstate_uhci;
1316     dc->props = uhci_properties;
1317 }
1318
1319 static TypeInfo ich9_uhci1_info = {
1320     .name          = "ich9-usb-uhci1",
1321     .parent        = TYPE_PCI_DEVICE,
1322     .instance_size = sizeof(UHCIState),
1323     .class_init    = ich9_uhci1_class_init,
1324 };
1325
1326 static void ich9_uhci2_class_init(ObjectClass *klass, void *data)
1327 {
1328     DeviceClass *dc = DEVICE_CLASS(klass);
1329     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
1330
1331     k->init = usb_uhci_common_initfn;
1332     k->vendor_id = PCI_VENDOR_ID_INTEL;
1333     k->device_id = PCI_DEVICE_ID_INTEL_82801I_UHCI2;
1334     k->revision = 0x03;
1335     k->class_id = PCI_CLASS_SERIAL_USB;
1336     dc->vmsd = &vmstate_uhci;
1337     dc->props = uhci_properties;
1338 }
1339
1340 static TypeInfo ich9_uhci2_info = {
1341     .name          = "ich9-usb-uhci2",
1342     .parent        = TYPE_PCI_DEVICE,
1343     .instance_size = sizeof(UHCIState),
1344     .class_init    = ich9_uhci2_class_init,
1345 };
1346
1347 static void ich9_uhci3_class_init(ObjectClass *klass, void *data)
1348 {
1349     DeviceClass *dc = DEVICE_CLASS(klass);
1350     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
1351
1352     k->init = usb_uhci_common_initfn;
1353     k->vendor_id = PCI_VENDOR_ID_INTEL;
1354     k->device_id = PCI_DEVICE_ID_INTEL_82801I_UHCI3;
1355     k->revision = 0x03;
1356     k->class_id = PCI_CLASS_SERIAL_USB;
1357     dc->vmsd = &vmstate_uhci;
1358     dc->props = uhci_properties;
1359 }
1360
1361 static TypeInfo ich9_uhci3_info = {
1362     .name          = "ich9-usb-uhci3",
1363     .parent        = TYPE_PCI_DEVICE,
1364     .instance_size = sizeof(UHCIState),
1365     .class_init    = ich9_uhci3_class_init,
1366 };
1367
1368 static void uhci_register_types(void)
1369 {
1370     type_register_static(&piix3_uhci_info);
1371     type_register_static(&piix4_uhci_info);
1372     type_register_static(&vt82c686b_uhci_info);
1373     type_register_static(&ich9_uhci1_info);
1374     type_register_static(&ich9_uhci2_info);
1375     type_register_static(&ich9_uhci3_info);
1376 }
1377
1378 type_init(uhci_register_types)