hw/usb-hid.c

   1 /*
   2  * QEMU USB HID devices
   3  *
   4  * Copyright (c) 2005 Fabrice Bellard
   5  * Copyright (c) 2007 OpenMoko, Inc.  (andrew@openedhand.com)
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a copy
   8  * of this software and associated documentation files (the "Software"), to deal
   9  * in the Software without restriction, including without limitation the rights
  10  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  11  * copies of the Software, and to permit persons to whom the Software is
  12  * furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be included in
  15  * all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  22  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  23  * THE SOFTWARE.
  24  */
  25 #include "hw.h"
  26 #include "console.h"
  27 #include "usb.h"
  28 #include "usb-desc.h"
  29 #include "qemu-timer.h"
  30 #include "hid.h"
  31
  32 /* HID interface requests */
  33 #define GET_REPORT   0xa101
  34 #define GET_IDLE     0xa102
  35 #define GET_PROTOCOL 0xa103
  36 #define SET_REPORT   0x2109
  37 #define SET_IDLE     0x210a
  38 #define SET_PROTOCOL 0x210b
  39
  40 /* HID descriptor types */
  41 #define USB_DT_HID    0x21
  42 #define USB_DT_REPORT 0x22
  43 #define USB_DT_PHY    0x23
  44
  45 typedef struct USBHIDState {
  46     USBDevice dev;
  47     HIDState hid;
  48     void *datain_opaque;
  49     void (*datain)(void *);
  50 } USBHIDState;
  51
  52 enum {
  53     STR_MANUFACTURER = 1,
  54     STR_PRODUCT_MOUSE,
  55     STR_PRODUCT_TABLET,
  56     STR_PRODUCT_KEYBOARD,
  57     STR_SERIALNUMBER,
  58     STR_CONFIG_MOUSE,
  59     STR_CONFIG_TABLET,
  60     STR_CONFIG_KEYBOARD,
  61 };
  62
  63 static const USBDescStrings desc_strings = {
  64     [STR_MANUFACTURER]     = "QEMU " QEMU_VERSION,
  65     [STR_PRODUCT_MOUSE]    = "QEMU USB Mouse",
  66     [STR_PRODUCT_TABLET]   = "QEMU USB Tablet",
  67     [STR_PRODUCT_KEYBOARD] = "QEMU USB Keyboard",
  68     [STR_SERIALNUMBER]     = "42", /* == remote wakeup works */
  69     [STR_CONFIG_MOUSE]     = "HID Mouse",
  70     [STR_CONFIG_TABLET]    = "HID Tablet",
  71     [STR_CONFIG_KEYBOARD]  = "HID Keyboard",
  72 };
  73
  74 static const USBDescIface desc_iface_mouse = {
  75     .bInterfaceNumber              = 0,
  76     .bNumEndpoints                 = 1,
  77     .bInterfaceClass               = USB_CLASS_HID,
  78     .bInterfaceSubClass            = 0x01, /* boot */
  79     .bInterfaceProtocol            = 0x02,
  80     .ndesc                         = 1,
  81     .descs = (USBDescOther[]) {
  82         {
  83             /* HID descriptor */
  84             .data = (uint8_t[]) {
  85                 0x09,          /*  u8  bLength */
  86                 USB_DT_HID,    /*  u8  bDescriptorType */
  87                 0x01, 0x00,    /*  u16 HID_class */
  88                 0x00,          /*  u8  country_code */
  89                 0x01,          /*  u8  num_descriptors */
  90                 USB_DT_REPORT, /*  u8  type: Report */
  91                 52, 0,         /*  u16 len */
  92             },
  93         },
  94     },
  95     .eps = (USBDescEndpoint[]) {
  96         {
  97             .bEndpointAddress      = USB_DIR_IN | 0x01,
  98             .bmAttributes          = USB_ENDPOINT_XFER_INT,
  99             .wMaxPacketSize        = 4,
 100             .bInterval             = 0x0a,
 101         },
 102     },
 103 };
 104
 105 static const USBDescIface desc_iface_tablet = {
 106     .bInterfaceNumber              = 0,
 107     .bNumEndpoints                 = 1,
 108     .bInterfaceClass               = USB_CLASS_HID,
 109     .bInterfaceProtocol            = 0x02,
 110     .ndesc                         = 1,
 111     .descs = (USBDescOther[]) {
 112         {
 113             /* HID descriptor */
 114             .data = (uint8_t[]) {
 115                 0x09,          /*  u8  bLength */
 116                 USB_DT_HID,    /*  u8  bDescriptorType */
 117                 0x01, 0x00,    /*  u16 HID_class */
 118                 0x00,          /*  u8  country_code */
 119                 0x01,          /*  u8  num_descriptors */
 120                 USB_DT_REPORT, /*  u8  type: Report */
 121                 74, 0,         /*  u16 len */
 122             },
 123         },
 124     },
 125     .eps = (USBDescEndpoint[]) {
 126         {
 127             .bEndpointAddress      = USB_DIR_IN | 0x01,
 128             .bmAttributes          = USB_ENDPOINT_XFER_INT,
 129             .wMaxPacketSize        = 8,
 130             .bInterval             = 0x0a,
 131         },
 132     },
 133 };
 134
 135 static const USBDescIface desc_iface_keyboard = {
 136     .bInterfaceNumber              = 0,
 137     .bNumEndpoints                 = 1,
 138     .bInterfaceClass               = USB_CLASS_HID,
 139     .bInterfaceSubClass            = 0x01, /* boot */
 140     .bInterfaceProtocol            = 0x01, /* keyboard */
 141     .ndesc                         = 1,
 142     .descs = (USBDescOther[]) {
 143         {
 144             /* HID descriptor */
 145             .data = (uint8_t[]) {
 146                 0x09,          /*  u8  bLength */
 147                 USB_DT_HID,    /*  u8  bDescriptorType */
 148                 0x11, 0x01,    /*  u16 HID_class */
 149                 0x00,          /*  u8  country_code */
 150                 0x01,          /*  u8  num_descriptors */
 151                 USB_DT_REPORT, /*  u8  type: Report */
 152                 0x3f, 0,       /*  u16 len */
 153             },
 154         },
 155     },
 156     .eps = (USBDescEndpoint[]) {
 157         {
 158             .bEndpointAddress      = USB_DIR_IN | 0x01,
 159             .bmAttributes          = USB_ENDPOINT_XFER_INT,
 160             .wMaxPacketSize        = 8,
 161             .bInterval             = 0x0a,
 162         },
 163     },
 164 };
 165
 166 static const USBDescDevice desc_device_mouse = {
 167     .bcdUSB                        = 0x0100,
 168     .bMaxPacketSize0               = 8,
 169     .bNumConfigurations            = 1,
 170     .confs = (USBDescConfig[]) {
 171         {
 172             .bNumInterfaces        = 1,
 173             .bConfigurationValue   = 1,
 174             .iConfiguration        = STR_CONFIG_MOUSE,
 175             .bmAttributes          = 0xa0,
 176             .bMaxPower             = 50,
 177             .nif = 1,
 178             .ifs = &desc_iface_mouse,
 179         },
 180     },
 181 };
 182
 183 static const USBDescDevice desc_device_tablet = {
 184     .bcdUSB                        = 0x0100,
 185     .bMaxPacketSize0               = 8,
 186     .bNumConfigurations            = 1,
 187     .confs = (USBDescConfig[]) {
 188         {
 189             .bNumInterfaces        = 1,
 190             .bConfigurationValue   = 1,
 191             .iConfiguration        = STR_CONFIG_TABLET,
 192             .bmAttributes          = 0xa0,
 193             .bMaxPower             = 50,
 194             .nif = 1,
 195             .ifs = &desc_iface_tablet,
 196         },
 197     },
 198 };
 199
 200 static const USBDescDevice desc_device_keyboard = {
 201     .bcdUSB                        = 0x0100,
 202     .bMaxPacketSize0               = 8,
 203     .bNumConfigurations            = 1,
 204     .confs = (USBDescConfig[]) {
 205         {
 206             .bNumInterfaces        = 1,
 207             .bConfigurationValue   = 1,
 208             .iConfiguration        = STR_CONFIG_KEYBOARD,
 209             .bmAttributes          = 0xa0,
 210             .bMaxPower             = 50,
 211             .nif = 1,
 212             .ifs = &desc_iface_keyboard,
 213         },
 214     },
 215 };
 216
 217 static const USBDesc desc_mouse = {
 218     .id = {
 219         .idVendor          = 0x0627,
 220         .idProduct         = 0x0001,
 221         .bcdDevice         = 0,
 222         .iManufacturer     = STR_MANUFACTURER,
 223         .iProduct          = STR_PRODUCT_MOUSE,
 224         .iSerialNumber     = STR_SERIALNUMBER,
 225     },
 226     .full = &desc_device_mouse,
 227     .str  = desc_strings,
 228 };
 229
 230 static const USBDesc desc_tablet = {
 231     .id = {
 232         .idVendor          = 0x0627,
 233         .idProduct         = 0x0001,
 234         .bcdDevice         = 0,
 235         .iManufacturer     = STR_MANUFACTURER,
 236         .iProduct          = STR_PRODUCT_TABLET,
 237         .iSerialNumber     = STR_SERIALNUMBER,
 238     },
 239     .full = &desc_device_tablet,
 240     .str  = desc_strings,
 241 };
 242
 243 static const USBDesc desc_keyboard = {
 244     .id = {
 245         .idVendor          = 0x0627,
 246         .idProduct         = 0x0001,
 247         .bcdDevice         = 0,
 248         .iManufacturer     = STR_MANUFACTURER,
 249         .iProduct          = STR_PRODUCT_KEYBOARD,
 250         .iSerialNumber     = STR_SERIALNUMBER,
 251     },
 252     .full = &desc_device_keyboard,
 253     .str  = desc_strings,
 254 };
 255
 256 static const uint8_t qemu_mouse_hid_report_descriptor[] = {
 257     0x05, 0x01,         /* Usage Page (Generic Desktop) */
 258     0x09, 0x02,         /* Usage (Mouse) */
 259     0xa1, 0x01,         /* Collection (Application) */
 260     0x09, 0x01,         /*   Usage (Pointer) */
 261     0xa1, 0x00,         /*   Collection (Physical) */
 262     0x05, 0x09,         /*     Usage Page (Button) */
 263     0x19, 0x01,         /*     Usage Minimum (1) */
 264     0x29, 0x03,         /*     Usage Maximum (3) */
 265     0x15, 0x00,         /*     Logical Minimum (0) */
 266     0x25, 0x01,         /*     Logical Maximum (1) */
 267     0x95, 0x03,         /*     Report Count (3) */
 268     0x75, 0x01,         /*     Report Size (1) */
 269     0x81, 0x02,         /*     Input (Data, Variable, Absolute) */
 270     0x95, 0x01,         /*     Report Count (1) */
 271     0x75, 0x05,         /*     Report Size (5) */
 272     0x81, 0x01,         /*     Input (Constant) */
 273     0x05, 0x01,         /*     Usage Page (Generic Desktop) */
 274     0x09, 0x30,         /*     Usage (X) */
 275     0x09, 0x31,         /*     Usage (Y) */
 276     0x09, 0x38,         /*     Usage (Wheel) */
 277     0x15, 0x81,         /*     Logical Minimum (-0x7f) */
 278     0x25, 0x7f,         /*     Logical Maximum (0x7f) */
 279     0x75, 0x08,         /*     Report Size (8) */
 280     0x95, 0x03,         /*     Report Count (3) */
 281     0x81, 0x06,         /*     Input (Data, Variable, Relative) */
 282     0xc0,               /*   End Collection */
 283     0xc0,               /* End Collection */
 284 };
 285
 286 static const uint8_t qemu_tablet_hid_report_descriptor[] = {
 287     0x05, 0x01,         /* Usage Page (Generic Desktop) */
 288     0x09, 0x01,         /* Usage (Pointer) */
 289     0xa1, 0x01,         /* Collection (Application) */
 290     0x09, 0x01,         /*   Usage (Pointer) */
 291     0xa1, 0x00,         /*   Collection (Physical) */
 292     0x05, 0x09,         /*     Usage Page (Button) */
 293     0x19, 0x01,         /*     Usage Minimum (1) */
 294     0x29, 0x03,         /*     Usage Maximum (3) */
 295     0x15, 0x00,         /*     Logical Minimum (0) */
 296     0x25, 0x01,         /*     Logical Maximum (1) */
 297     0x95, 0x03,         /*     Report Count (3) */
 298     0x75, 0x01,         /*     Report Size (1) */
 299     0x81, 0x02,         /*     Input (Data, Variable, Absolute) */
 300     0x95, 0x01,         /*     Report Count (1) */
 301     0x75, 0x05,         /*     Report Size (5) */
 302     0x81, 0x01,         /*     Input (Constant) */
 303     0x05, 0x01,         /*     Usage Page (Generic Desktop) */
 304     0x09, 0x30,         /*     Usage (X) */
 305     0x09, 0x31,         /*     Usage (Y) */
 306     0x15, 0x00,         /*     Logical Minimum (0) */
 307     0x26, 0xff, 0x7f,   /*     Logical Maximum (0x7fff) */
 308     0x35, 0x00,         /*     Physical Minimum (0) */
 309     0x46, 0xff, 0x7f,   /*     Physical Maximum (0x7fff) */
 310     0x75, 0x10,         /*     Report Size (16) */
 311     0x95, 0x02,         /*     Report Count (2) */
 312     0x81, 0x02,         /*     Input (Data, Variable, Absolute) */
 313     0x05, 0x01,         /*     Usage Page (Generic Desktop) */
 314     0x09, 0x38,         /*     Usage (Wheel) */
 315     0x15, 0x81,         /*     Logical Minimum (-0x7f) */
 316     0x25, 0x7f,         /*     Logical Maximum (0x7f) */
 317     0x35, 0x00,         /*     Physical Minimum (same as logical) */
 318     0x45, 0x00,         /*     Physical Maximum (same as logical) */
 319     0x75, 0x08,         /*     Report Size (8) */
 320     0x95, 0x01,         /*     Report Count (1) */
 321     0x81, 0x06,         /*     Input (Data, Variable, Relative) */
 322     0xc0,               /*   End Collection */
 323     0xc0,               /* End Collection */
 324 };
 325
 326 static const uint8_t qemu_keyboard_hid_report_descriptor[] = {
 327     0x05, 0x01,         /* Usage Page (Generic Desktop) */
 328     0x09, 0x06,         /* Usage (Keyboard) */
 329     0xa1, 0x01,         /* Collection (Application) */
 330     0x75, 0x01,         /*   Report Size (1) */
 331     0x95, 0x08,         /*   Report Count (8) */
 332     0x05, 0x07,         /*   Usage Page (Key Codes) */
 333     0x19, 0xe0,         /*   Usage Minimum (224) */
 334     0x29, 0xe7,         /*   Usage Maximum (231) */
 335     0x15, 0x00,         /*   Logical Minimum (0) */
 336     0x25, 0x01,         /*   Logical Maximum (1) */
 337     0x81, 0x02,         /*   Input (Data, Variable, Absolute) */
 338     0x95, 0x01,         /*   Report Count (1) */
 339     0x75, 0x08,         /*   Report Size (8) */
 340     0x81, 0x01,         /*   Input (Constant) */
 341     0x95, 0x05,         /*   Report Count (5) */
 342     0x75, 0x01,         /*   Report Size (1) */
 343     0x05, 0x08,         /*   Usage Page (LEDs) */
 344     0x19, 0x01,         /*   Usage Minimum (1) */
 345     0x29, 0x05,         /*   Usage Maximum (5) */
 346     0x91, 0x02,         /*   Output (Data, Variable, Absolute) */
 347     0x95, 0x01,         /*   Report Count (1) */
 348     0x75, 0x03,         /*   Report Size (3) */
 349     0x91, 0x01,         /*   Output (Constant) */
 350     0x95, 0x06,         /*   Report Count (6) */
 351     0x75, 0x08,         /*   Report Size (8) */
 352     0x15, 0x00,         /*   Logical Minimum (0) */
 353     0x25, 0xff,         /*   Logical Maximum (255) */
 354     0x05, 0x07,         /*   Usage Page (Key Codes) */
 355     0x19, 0x00,         /*   Usage Minimum (0) */
 356     0x29, 0xff,         /*   Usage Maximum (255) */
 357     0x81, 0x00,         /*   Input (Data, Array) */
 358     0xc0,               /* End Collection */
 359 };
 360
 361 static void usb_hid_changed(HIDState *hs)
 362 {
 363     USBHIDState *us = container_of(hs, USBHIDState, hid);
 364
 365     if (us->datain) {
 366         us->datain(us->datain_opaque);
 367     }
 368
 369     usb_wakeup(&us->dev);
 370 }
 371
 372 static void usb_hid_handle_reset(USBDevice *dev)
 373 {
 374     USBHIDState *us = DO_UPCAST(USBHIDState, dev, dev);
 375
 376     hid_reset(&us->hid);
 377 }
 378
 379 static int usb_hid_handle_control(USBDevice *dev, USBPacket *p,
 380                int request, int value, int index, int length, uint8_t *data)
 381 {
 382     USBHIDState *us = DO_UPCAST(USBHIDState, dev, dev);
 383     HIDState *hs = &us->hid;
 384     int ret;
 385
 386     ret = usb_desc_handle_control(dev, p, request, value, index, length, data);
 387     if (ret >= 0) {
 388         return ret;
 389     }
 390
 391     ret = 0;
 392     switch (request) {
 393     case DeviceRequest | USB_REQ_GET_INTERFACE:
 394         data[0] = 0;
 395         ret = 1;
 396         break;
 397     case DeviceOutRequest | USB_REQ_SET_INTERFACE:
 398         ret = 0;
 399         break;
 400         /* hid specific requests */
 401     case InterfaceRequest | USB_REQ_GET_DESCRIPTOR:
 402         switch (value >> 8) {
 403         case 0x22:
 404             if (hs->kind == HID_MOUSE) {
 405                 memcpy(data, qemu_mouse_hid_report_descriptor,
 406                        sizeof(qemu_mouse_hid_report_descriptor));
 407                 ret = sizeof(qemu_mouse_hid_report_descriptor);
 408             } else if (hs->kind == HID_TABLET) {
 409                 memcpy(data, qemu_tablet_hid_report_descriptor,
 410                        sizeof(qemu_tablet_hid_report_descriptor));
 411                 ret = sizeof(qemu_tablet_hid_report_descriptor);
 412             } else if (hs->kind == HID_KEYBOARD) {
 413                 memcpy(data, qemu_keyboard_hid_report_descriptor,
 414                        sizeof(qemu_keyboard_hid_report_descriptor));
 415                 ret = sizeof(qemu_keyboard_hid_report_descriptor);
 416             }
 417             break;
 418         default:
 419             goto fail;
 420         }
 421         break;
 422     case GET_REPORT:
 423         if (hs->kind == HID_MOUSE || hs->kind == HID_TABLET) {
 424             ret = hid_pointer_poll(hs, data, length);
 425         } else if (hs->kind == HID_KEYBOARD) {
 426             ret = hid_keyboard_poll(hs, data, length);
 427         }
 428         break;
 429     case SET_REPORT:
 430         if (hs->kind == HID_KEYBOARD) {
 431             ret = hid_keyboard_write(hs, data, length);
 432         } else {
 433             goto fail;
 434         }
 435         break;
 436     case GET_PROTOCOL:
 437         if (hs->kind != HID_KEYBOARD && hs->kind != HID_MOUSE) {
 438             goto fail;
 439         }
 440         ret = 1;
 441         data[0] = hs->protocol;
 442         break;
 443     case SET_PROTOCOL:
 444         if (hs->kind != HID_KEYBOARD && hs->kind != HID_MOUSE) {
 445             goto fail;
 446         }
 447         ret = 0;
 448         hs->protocol = value;
 449         break;
 450     case GET_IDLE:
 451         ret = 1;
 452         data[0] = hs->idle;
 453         break;
 454     case SET_IDLE:
 455         hs->idle = (uint8_t) (value >> 8);
 456         hid_set_next_idle(hs, qemu_get_clock_ns(vm_clock));
 457         ret = 0;
 458         break;
 459     default:
 460     fail:
 461         ret = USB_RET_STALL;
 462         break;
 463     }
 464     return ret;
 465 }
 466
 467 static int usb_hid_handle_data(USBDevice *dev, USBPacket *p)
 468 {
 469     USBHIDState *us = DO_UPCAST(USBHIDState, dev, dev);
 470     HIDState *hs = &us->hid;
 471     uint8_t buf[p->iov.size];
 472     int ret = 0;
 473
 474     switch (p->pid) {
 475     case USB_TOKEN_IN:
 476         if (p->devep == 1) {
 477             int64_t curtime = qemu_get_clock_ns(vm_clock);
 478             if (!hid_has_events(hs) &&
 479                 (!hs->idle || hs->next_idle_clock - curtime > 0)) {
 480                 return USB_RET_NAK;
 481             }
 482             hid_set_next_idle(hs, curtime);
 483             if (hs->kind == HID_MOUSE || hs->kind == HID_TABLET) {
 484                 ret = hid_pointer_poll(hs, buf, p->iov.size);
 485             } else if (hs->kind == HID_KEYBOARD) {
 486                 ret = hid_keyboard_poll(hs, buf, p->iov.size);
 487             }
 488             usb_packet_copy(p, buf, ret);
 489         } else {
 490             goto fail;
 491         }
 492         break;
 493     case USB_TOKEN_OUT:
 494     default:
 495     fail:
 496         ret = USB_RET_STALL;
 497         break;
 498     }
 499     return ret;
 500 }
 501
 502 static void usb_hid_handle_destroy(USBDevice *dev)
 503 {
 504     USBHIDState *us = DO_UPCAST(USBHIDState, dev, dev);
 505
 506     hid_free(&us->hid);
 507 }
 508
 509 static int usb_hid_initfn(USBDevice *dev, int kind)
 510 {
 511     USBHIDState *us = DO_UPCAST(USBHIDState, dev, dev);
 512
 513     usb_desc_init(dev);
 514     hid_init(&us->hid, kind, usb_hid_changed);
 515     return 0;
 516 }
 517
 518 static int usb_tablet_initfn(USBDevice *dev)
 519 {
 520     return usb_hid_initfn(dev, HID_TABLET);
 521 }
 522
 523 static int usb_mouse_initfn(USBDevice *dev)
 524 {
 525     return usb_hid_initfn(dev, HID_MOUSE);
 526 }
 527
 528 static int usb_keyboard_initfn(USBDevice *dev)
 529 {
 530     return usb_hid_initfn(dev, HID_KEYBOARD);
 531 }
 532
 533 void usb_hid_datain_cb(USBDevice *dev, void *opaque, void (*datain)(void *))
 534 {
 535     USBHIDState *s = (USBHIDState *)dev;
 536
 537     s->datain_opaque = opaque;
 538     s->datain = datain;
 539 }
 540
 541 static int usb_hid_post_load(void *opaque, int version_id)
 542 {
 543     USBHIDState *s = opaque;
 544
 545     if (s->hid.idle) {
 546         hid_set_next_idle(&s->hid, qemu_get_clock_ns(vm_clock));
 547     }
 548     return 0;
 549 }
 550
 551 static const VMStateDescription vmstate_usb_ptr_queue = {
 552     .name = "usb-ptr-queue",
 553     .version_id = 1,
 554     .minimum_version_id = 1,
 555     .fields = (VMStateField []) {
 556         VMSTATE_INT32(xdx, HIDPointerEvent),
 557         VMSTATE_INT32(ydy, HIDPointerEvent),
 558         VMSTATE_INT32(dz, HIDPointerEvent),
 559         VMSTATE_INT32(buttons_state, HIDPointerEvent),
 560         VMSTATE_END_OF_LIST()
 561     }
 562 };
 563 static const VMStateDescription vmstate_usb_ptr = {
 564     .name = "usb-ptr",
 565     .version_id = 1,
 566     .minimum_version_id = 1,
 567     .post_load = usb_hid_post_load,
 568     .fields = (VMStateField []) {
 569         VMSTATE_USB_DEVICE(dev, USBHIDState),
 570         VMSTATE_STRUCT_ARRAY(hid.ptr.queue, USBHIDState, QUEUE_LENGTH, 0,
 571                              vmstate_usb_ptr_queue, HIDPointerEvent),
 572         VMSTATE_UINT32(hid.head, USBHIDState),
 573         VMSTATE_UINT32(hid.n, USBHIDState),
 574         VMSTATE_INT32(hid.protocol, USBHIDState),
 575         VMSTATE_UINT8(hid.idle, USBHIDState),
 576         VMSTATE_END_OF_LIST()
 577     }
 578 };
 579
 580 static const VMStateDescription vmstate_usb_kbd = {
 581     .name = "usb-kbd",
 582     .version_id = 1,
 583     .minimum_version_id = 1,
 584     .post_load = usb_hid_post_load,
 585     .fields = (VMStateField []) {
 586         VMSTATE_USB_DEVICE(dev, USBHIDState),
 587         VMSTATE_UINT32_ARRAY(hid.kbd.keycodes, USBHIDState, QUEUE_LENGTH),
 588         VMSTATE_UINT32(hid.head, USBHIDState),
 589         VMSTATE_UINT32(hid.n, USBHIDState),
 590         VMSTATE_UINT16(hid.kbd.modifiers, USBHIDState),
 591         VMSTATE_UINT8(hid.kbd.leds, USBHIDState),
 592         VMSTATE_UINT8_ARRAY(hid.kbd.key, USBHIDState, 16),
 593         VMSTATE_INT32(hid.kbd.keys, USBHIDState),
 594         VMSTATE_INT32(hid.protocol, USBHIDState),
 595         VMSTATE_UINT8(hid.idle, USBHIDState),
 596         VMSTATE_END_OF_LIST()
 597     }
 598 };
 599
 600 static struct USBDeviceInfo hid_info[] = {
 601     {
 602         .product_desc   = "QEMU USB Tablet",
 603         .qdev.name      = "usb-tablet",
 604         .usbdevice_name = "tablet",
 605         .qdev.size      = sizeof(USBHIDState),
 606         .qdev.vmsd      = &vmstate_usb_ptr,
 607         .usb_desc       = &desc_tablet,
 608         .init           = usb_tablet_initfn,
 609         .handle_packet  = usb_generic_handle_packet,
 610         .handle_reset   = usb_hid_handle_reset,
 611         .handle_control = usb_hid_handle_control,
 612         .handle_data    = usb_hid_handle_data,
 613         .handle_destroy = usb_hid_handle_destroy,
 614     },{
 615         .product_desc   = "QEMU USB Mouse",
 616         .qdev.name      = "usb-mouse",
 617         .usbdevice_name = "mouse",
 618         .qdev.size      = sizeof(USBHIDState),
 619         .qdev.vmsd      = &vmstate_usb_ptr,
 620         .usb_desc       = &desc_mouse,
 621         .init           = usb_mouse_initfn,
 622         .handle_packet  = usb_generic_handle_packet,
 623         .handle_reset   = usb_hid_handle_reset,
 624         .handle_control = usb_hid_handle_control,
 625         .handle_data    = usb_hid_handle_data,
 626         .handle_destroy = usb_hid_handle_destroy,
 627     },{
 628         .product_desc   = "QEMU USB Keyboard",
 629         .qdev.name      = "usb-kbd",
 630         .usbdevice_name = "keyboard",
 631         .qdev.size      = sizeof(USBHIDState),
 632         .qdev.vmsd      = &vmstate_usb_kbd,
 633         .usb_desc       = &desc_keyboard,
 634         .init           = usb_keyboard_initfn,
 635         .handle_packet  = usb_generic_handle_packet,
 636         .handle_reset   = usb_hid_handle_reset,
 637         .handle_control = usb_hid_handle_control,
 638         .handle_data    = usb_hid_handle_data,
 639         .handle_destroy = usb_hid_handle_destroy,
 640     },{
 641         /* end of list */
 642     }
 643 };
 644
 645 static void usb_hid_register_devices(void)
 646 {
 647     usb_qdev_register_many(hid_info);
 648 }
 649 device_init(usb_hid_register_devices)