hw/input/virtio-input-hid.c

   1 /*
   2  * This work is licensed under the terms of the GNU GPL, version 2 or
   3  * (at your option) any later version.  See the COPYING file in the
   4  * top-level directory.
   5  */
   6
   7 #include "qemu/osdep.h"
   8 #include "qemu/iov.h"
   9
  10 #include "hw/qdev.h"
  11 #include "hw/virtio/virtio.h"
  12 #include "hw/virtio/virtio-input.h"
  13
  14 #undef CONFIG_CURSES
  15 #include "ui/console.h"
  16
  17 #include "standard-headers/linux/input.h"
  18
  19 #define VIRTIO_ID_NAME_KEYBOARD "QEMU Virtio Keyboard"
  20 #define VIRTIO_ID_NAME_MOUSE    "QEMU Virtio Mouse"
  21 #define VIRTIO_ID_NAME_TABLET   "QEMU Virtio Tablet"
  22
  23 /* ----------------------------------------------------------------- */
  24
  25 static const unsigned int keymap_qcode[Q_KEY_CODE__MAX] = {
  26     [Q_KEY_CODE_ESC]                 = KEY_ESC,
  27     [Q_KEY_CODE_1]                   = KEY_1,
  28     [Q_KEY_CODE_2]                   = KEY_2,
  29     [Q_KEY_CODE_3]                   = KEY_3,
  30     [Q_KEY_CODE_4]                   = KEY_4,
  31     [Q_KEY_CODE_5]                   = KEY_5,
  32     [Q_KEY_CODE_6]                   = KEY_6,
  33     [Q_KEY_CODE_7]                   = KEY_7,
  34     [Q_KEY_CODE_8]                   = KEY_8,
  35     [Q_KEY_CODE_9]                   = KEY_9,
  36     [Q_KEY_CODE_0]                   = KEY_0,
  37     [Q_KEY_CODE_MINUS]               = KEY_MINUS,
  38     [Q_KEY_CODE_EQUAL]               = KEY_EQUAL,
  39     [Q_KEY_CODE_BACKSPACE]           = KEY_BACKSPACE,
  40
  41     [Q_KEY_CODE_TAB]                 = KEY_TAB,
  42     [Q_KEY_CODE_Q]                   = KEY_Q,
  43     [Q_KEY_CODE_W]                   = KEY_W,
  44     [Q_KEY_CODE_E]                   = KEY_E,
  45     [Q_KEY_CODE_R]                   = KEY_R,
  46     [Q_KEY_CODE_T]                   = KEY_T,
  47     [Q_KEY_CODE_Y]                   = KEY_Y,
  48     [Q_KEY_CODE_U]                   = KEY_U,
  49     [Q_KEY_CODE_I]                   = KEY_I,
  50     [Q_KEY_CODE_O]                   = KEY_O,
  51     [Q_KEY_CODE_P]                   = KEY_P,
  52     [Q_KEY_CODE_BRACKET_LEFT]        = KEY_LEFTBRACE,
  53     [Q_KEY_CODE_BRACKET_RIGHT]       = KEY_RIGHTBRACE,
  54     [Q_KEY_CODE_RET]                 = KEY_ENTER,
  55
  56     [Q_KEY_CODE_CTRL]                = KEY_LEFTCTRL,
  57     [Q_KEY_CODE_A]                   = KEY_A,
  58     [Q_KEY_CODE_S]                   = KEY_S,
  59     [Q_KEY_CODE_D]                   = KEY_D,
  60     [Q_KEY_CODE_F]                   = KEY_F,
  61     [Q_KEY_CODE_G]                   = KEY_G,
  62     [Q_KEY_CODE_H]                   = KEY_H,
  63     [Q_KEY_CODE_J]                   = KEY_J,
  64     [Q_KEY_CODE_K]                   = KEY_K,
  65     [Q_KEY_CODE_L]                   = KEY_L,
  66     [Q_KEY_CODE_SEMICOLON]           = KEY_SEMICOLON,
  67     [Q_KEY_CODE_APOSTROPHE]          = KEY_APOSTROPHE,
  68     [Q_KEY_CODE_GRAVE_ACCENT]        = KEY_GRAVE,
  69
  70     [Q_KEY_CODE_SHIFT]               = KEY_LEFTSHIFT,
  71     [Q_KEY_CODE_BACKSLASH]           = KEY_BACKSLASH,
  72     [Q_KEY_CODE_LESS]                = KEY_102ND,
  73     [Q_KEY_CODE_Z]                   = KEY_Z,
  74     [Q_KEY_CODE_X]                   = KEY_X,
  75     [Q_KEY_CODE_C]                   = KEY_C,
  76     [Q_KEY_CODE_V]                   = KEY_V,
  77     [Q_KEY_CODE_B]                   = KEY_B,
  78     [Q_KEY_CODE_N]                   = KEY_N,
  79     [Q_KEY_CODE_M]                   = KEY_M,
  80     [Q_KEY_CODE_COMMA]               = KEY_COMMA,
  81     [Q_KEY_CODE_DOT]                 = KEY_DOT,
  82     [Q_KEY_CODE_SLASH]               = KEY_SLASH,
  83     [Q_KEY_CODE_SHIFT_R]             = KEY_RIGHTSHIFT,
  84
  85     [Q_KEY_CODE_ALT]                 = KEY_LEFTALT,
  86     [Q_KEY_CODE_SPC]                 = KEY_SPACE,
  87     [Q_KEY_CODE_CAPS_LOCK]           = KEY_CAPSLOCK,
  88
  89     [Q_KEY_CODE_F1]                  = KEY_F1,
  90     [Q_KEY_CODE_F2]                  = KEY_F2,
  91     [Q_KEY_CODE_F3]                  = KEY_F3,
  92     [Q_KEY_CODE_F4]                  = KEY_F4,
  93     [Q_KEY_CODE_F5]                  = KEY_F5,
  94     [Q_KEY_CODE_F6]                  = KEY_F6,
  95     [Q_KEY_CODE_F7]                  = KEY_F7,
  96     [Q_KEY_CODE_F8]                  = KEY_F8,
  97     [Q_KEY_CODE_F9]                  = KEY_F9,
  98     [Q_KEY_CODE_F10]                 = KEY_F10,
  99     [Q_KEY_CODE_NUM_LOCK]            = KEY_NUMLOCK,
 100     [Q_KEY_CODE_SCROLL_LOCK]         = KEY_SCROLLLOCK,
 101
 102     [Q_KEY_CODE_KP_0]                = KEY_KP0,
 103     [Q_KEY_CODE_KP_1]                = KEY_KP1,
 104     [Q_KEY_CODE_KP_2]                = KEY_KP2,
 105     [Q_KEY_CODE_KP_3]                = KEY_KP3,
 106     [Q_KEY_CODE_KP_4]                = KEY_KP4,
 107     [Q_KEY_CODE_KP_5]                = KEY_KP5,
 108     [Q_KEY_CODE_KP_6]                = KEY_KP6,
 109     [Q_KEY_CODE_KP_7]                = KEY_KP7,
 110     [Q_KEY_CODE_KP_8]                = KEY_KP8,
 111     [Q_KEY_CODE_KP_9]                = KEY_KP9,
 112     [Q_KEY_CODE_KP_SUBTRACT]         = KEY_KPMINUS,
 113     [Q_KEY_CODE_KP_ADD]              = KEY_KPPLUS,
 114     [Q_KEY_CODE_KP_DECIMAL]          = KEY_KPDOT,
 115     [Q_KEY_CODE_KP_ENTER]            = KEY_KPENTER,
 116     [Q_KEY_CODE_KP_DIVIDE]           = KEY_KPSLASH,
 117     [Q_KEY_CODE_KP_MULTIPLY]         = KEY_KPASTERISK,
 118
 119     [Q_KEY_CODE_F11]                 = KEY_F11,
 120     [Q_KEY_CODE_F12]                 = KEY_F12,
 121
 122     [Q_KEY_CODE_CTRL_R]              = KEY_RIGHTCTRL,
 123     [Q_KEY_CODE_SYSRQ]               = KEY_SYSRQ,
 124     [Q_KEY_CODE_ALT_R]               = KEY_RIGHTALT,
 125
 126     [Q_KEY_CODE_HOME]                = KEY_HOME,
 127     [Q_KEY_CODE_UP]                  = KEY_UP,
 128     [Q_KEY_CODE_PGUP]                = KEY_PAGEUP,
 129     [Q_KEY_CODE_LEFT]                = KEY_LEFT,
 130     [Q_KEY_CODE_RIGHT]               = KEY_RIGHT,
 131     [Q_KEY_CODE_END]                 = KEY_END,
 132     [Q_KEY_CODE_DOWN]                = KEY_DOWN,
 133     [Q_KEY_CODE_PGDN]                = KEY_PAGEDOWN,
 134     [Q_KEY_CODE_INSERT]              = KEY_INSERT,
 135     [Q_KEY_CODE_DELETE]              = KEY_DELETE,
 136
 137     [Q_KEY_CODE_META_L]              = KEY_LEFTMETA,
 138     [Q_KEY_CODE_META_R]              = KEY_RIGHTMETA,
 139     [Q_KEY_CODE_MENU]                = KEY_MENU,
 140 };
 141
 142 static const unsigned int keymap_button[INPUT_BUTTON__MAX] = {
 143     [INPUT_BUTTON_LEFT]              = BTN_LEFT,
 144     [INPUT_BUTTON_RIGHT]             = BTN_RIGHT,
 145     [INPUT_BUTTON_MIDDLE]            = BTN_MIDDLE,
 146     [INPUT_BUTTON_WHEELUP]           = BTN_GEAR_UP,
 147     [INPUT_BUTTON_WHEELDOWN]         = BTN_GEAR_DOWN,
 148 };
 149
 150 static const unsigned int axismap_rel[INPUT_AXIS__MAX] = {
 151     [INPUT_AXIS_X]                   = REL_X,
 152     [INPUT_AXIS_Y]                   = REL_Y,
 153 };
 154
 155 static const unsigned int axismap_abs[INPUT_AXIS__MAX] = {
 156     [INPUT_AXIS_X]                   = ABS_X,
 157     [INPUT_AXIS_Y]                   = ABS_Y,
 158 };
 159
 160 /* ----------------------------------------------------------------- */
 161
 162 static void virtio_input_key_config(VirtIOInput *vinput,
 163                                     const unsigned int *keymap,
 164                                     size_t mapsize)
 165 {
 166     virtio_input_config keys;
 167     int i, bit, byte, bmax = 0;
 168
 169     memset(&keys, 0, sizeof(keys));
 170     for (i = 0; i < mapsize; i++) {
 171         bit = keymap[i];
 172         if (!bit) {
 173             continue;
 174         }
 175         byte = bit / 8;
 176         bit  = bit % 8;
 177         keys.u.bitmap[byte] |= (1 << bit);
 178         if (bmax < byte+1) {
 179             bmax = byte+1;
 180         }
 181     }
 182     keys.select = VIRTIO_INPUT_CFG_EV_BITS;
 183     keys.subsel = EV_KEY;
 184     keys.size   = bmax;
 185     virtio_input_add_config(vinput, &keys);
 186 }
 187
 188 static void virtio_input_handle_event(DeviceState *dev, QemuConsole *src,
 189                                       InputEvent *evt)
 190 {
 191     VirtIOInput *vinput = VIRTIO_INPUT(dev);
 192     virtio_input_event event;
 193     int qcode;
 194
 195     switch (evt->type) {
 196     case INPUT_EVENT_KIND_KEY:
 197         qcode = qemu_input_key_value_to_qcode(evt->u.key->key);
 198         if (qcode && keymap_qcode[qcode]) {
 199             event.type  = cpu_to_le16(EV_KEY);
 200             event.code  = cpu_to_le16(keymap_qcode[qcode]);
 201             event.value = cpu_to_le32(evt->u.key->down ? 1 : 0);
 202             virtio_input_send(vinput, &event);
 203         } else {
 204             if (evt->u.key->down) {
 205                 fprintf(stderr, "%s: unmapped key: %d [%s]\n", __func__,
 206                         qcode, QKeyCode_lookup[qcode]);
 207             }
 208         }
 209         break;
 210     case INPUT_EVENT_KIND_BTN:
 211         if (keymap_button[evt->u.btn->button]) {
 212             event.type  = cpu_to_le16(EV_KEY);
 213             event.code  = cpu_to_le16(keymap_button[evt->u.btn->button]);
 214             event.value = cpu_to_le32(evt->u.btn->down ? 1 : 0);
 215             virtio_input_send(vinput, &event);
 216         } else {
 217             if (evt->u.btn->down) {
 218                 fprintf(stderr, "%s: unmapped button: %d [%s]\n", __func__,
 219                         evt->u.btn->button,
 220                         InputButton_lookup[evt->u.btn->button]);
 221             }
 222         }
 223         break;
 224     case INPUT_EVENT_KIND_REL:
 225         event.type  = cpu_to_le16(EV_REL);
 226         event.code  = cpu_to_le16(axismap_rel[evt->u.rel->axis]);
 227         event.value = cpu_to_le32(evt->u.rel->value);
 228         virtio_input_send(vinput, &event);
 229         break;
 230     case INPUT_EVENT_KIND_ABS:
 231         event.type  = cpu_to_le16(EV_ABS);
 232         event.code  = cpu_to_le16(axismap_abs[evt->u.abs->axis]);
 233         event.value = cpu_to_le32(evt->u.abs->value);
 234         virtio_input_send(vinput, &event);
 235         break;
 236     default:
 237         /* keep gcc happy */
 238         break;
 239     }
 240 }
 241
 242 static void virtio_input_handle_sync(DeviceState *dev)
 243 {
 244     VirtIOInput *vinput = VIRTIO_INPUT(dev);
 245     virtio_input_event event = {
 246         .type  = cpu_to_le16(EV_SYN),
 247         .code  = cpu_to_le16(SYN_REPORT),
 248         .value = 0,
 249     };
 250
 251     virtio_input_send(vinput, &event);
 252 }
 253
 254 static void virtio_input_hid_realize(DeviceState *dev, Error **errp)
 255 {
 256     VirtIOInputHID *vhid = VIRTIO_INPUT_HID(dev);
 257
 258     vhid->hs = qemu_input_handler_register(dev, vhid->handler);
 259     if (vhid->display && vhid->hs) {
 260         qemu_input_handler_bind(vhid->hs, vhid->display, vhid->head, NULL);
 261     }
 262 }
 263
 264 static void virtio_input_hid_unrealize(DeviceState *dev, Error **errp)
 265 {
 266     VirtIOInputHID *vhid = VIRTIO_INPUT_HID(dev);
 267     qemu_input_handler_unregister(vhid->hs);
 268 }
 269
 270 static void virtio_input_hid_change_active(VirtIOInput *vinput)
 271 {
 272     VirtIOInputHID *vhid = VIRTIO_INPUT_HID(vinput);
 273
 274     if (vinput->active) {
 275         qemu_input_handler_activate(vhid->hs);
 276     } else {
 277         qemu_input_handler_deactivate(vhid->hs);
 278     }
 279 }
 280
 281 static void virtio_input_hid_handle_status(VirtIOInput *vinput,
 282                                            virtio_input_event *event)
 283 {
 284     VirtIOInputHID *vhid = VIRTIO_INPUT_HID(vinput);
 285     int ledbit = 0;
 286
 287     switch (le16_to_cpu(event->type)) {
 288     case EV_LED:
 289         if (event->code == LED_NUML) {
 290             ledbit = QEMU_NUM_LOCK_LED;
 291         } else if (event->code == LED_CAPSL) {
 292             ledbit = QEMU_CAPS_LOCK_LED;
 293         } else if (event->code == LED_SCROLLL) {
 294             ledbit = QEMU_SCROLL_LOCK_LED;
 295         }
 296         if (event->value) {
 297             vhid->ledstate |= ledbit;
 298         } else {
 299             vhid->ledstate &= ~ledbit;
 300         }
 301         kbd_put_ledstate(vhid->ledstate);
 302         break;
 303     default:
 304         fprintf(stderr, "%s: unknown type %d\n", __func__,
 305                 le16_to_cpu(event->type));
 306         break;
 307     }
 308 }
 309
 310 static Property virtio_input_hid_properties[] = {
 311     DEFINE_PROP_STRING("display", VirtIOInputHID, display),
 312     DEFINE_PROP_UINT32("head", VirtIOInputHID, head, 0),
 313     DEFINE_PROP_END_OF_LIST(),
 314 };
 315
 316 static void virtio_input_hid_class_init(ObjectClass *klass, void *data)
 317 {
 318     DeviceClass *dc = DEVICE_CLASS(klass);
 319     VirtIOInputClass *vic = VIRTIO_INPUT_CLASS(klass);
 320
 321     dc->props          = virtio_input_hid_properties;
 322     vic->realize       = virtio_input_hid_realize;
 323     vic->unrealize     = virtio_input_hid_unrealize;
 324     vic->change_active = virtio_input_hid_change_active;
 325     vic->handle_status = virtio_input_hid_handle_status;
 326 }
 327
 328 static const TypeInfo virtio_input_hid_info = {
 329     .name          = TYPE_VIRTIO_INPUT_HID,
 330     .parent        = TYPE_VIRTIO_INPUT,
 331     .instance_size = sizeof(VirtIOInputHID),
 332     .class_init    = virtio_input_hid_class_init,
 333     .abstract      = true,
 334 };
 335
 336 /* ----------------------------------------------------------------- */
 337
 338 static QemuInputHandler virtio_keyboard_handler = {
 339     .name  = VIRTIO_ID_NAME_KEYBOARD,
 340     .mask  = INPUT_EVENT_MASK_KEY,
 341     .event = virtio_input_handle_event,
 342     .sync  = virtio_input_handle_sync,
 343 };
 344
 345 static struct virtio_input_config virtio_keyboard_config[] = {
 346     {
 347         .select    = VIRTIO_INPUT_CFG_ID_NAME,
 348         .size      = sizeof(VIRTIO_ID_NAME_KEYBOARD),
 349         .u.string  = VIRTIO_ID_NAME_KEYBOARD,
 350     },{
 351         .select    = VIRTIO_INPUT_CFG_ID_DEVIDS,
 352         .size      = sizeof(struct virtio_input_devids),
 353         .u.ids     = {
 354             .bustype = const_le16(BUS_VIRTUAL),
 355             .vendor  = const_le16(0x0627), /* same we use for usb hid devices */
 356             .product = const_le16(0x0001),
 357             .version = const_le16(0x0001),
 358         },
 359     },{
 360         .select    = VIRTIO_INPUT_CFG_EV_BITS,
 361         .subsel    = EV_REP,
 362         .size      = 1,
 363     },{
 364         .select    = VIRTIO_INPUT_CFG_EV_BITS,
 365         .subsel    = EV_LED,
 366         .size      = 1,
 367         .u.bitmap  = {
 368             (1 << LED_NUML) | (1 << LED_CAPSL) | (1 << LED_SCROLLL),
 369         },
 370     },
 371     { /* end of list */ },
 372 };
 373
 374 static void virtio_keyboard_init(Object *obj)
 375 {
 376     VirtIOInputHID *vhid = VIRTIO_INPUT_HID(obj);
 377     VirtIOInput *vinput = VIRTIO_INPUT(obj);
 378
 379     vhid->handler = &virtio_keyboard_handler;
 380     virtio_input_init_config(vinput, virtio_keyboard_config);
 381     virtio_input_key_config(vinput, keymap_qcode,
 382                             ARRAY_SIZE(keymap_qcode));
 383 }
 384
 385 static const TypeInfo virtio_keyboard_info = {
 386     .name          = TYPE_VIRTIO_KEYBOARD,
 387     .parent        = TYPE_VIRTIO_INPUT_HID,
 388     .instance_size = sizeof(VirtIOInputHID),
 389     .instance_init = virtio_keyboard_init,
 390 };
 391
 392 /* ----------------------------------------------------------------- */
 393
 394 static QemuInputHandler virtio_mouse_handler = {
 395     .name  = VIRTIO_ID_NAME_MOUSE,
 396     .mask  = INPUT_EVENT_MASK_BTN | INPUT_EVENT_MASK_REL,
 397     .event = virtio_input_handle_event,
 398     .sync  = virtio_input_handle_sync,
 399 };
 400
 401 static struct virtio_input_config virtio_mouse_config[] = {
 402     {
 403         .select    = VIRTIO_INPUT_CFG_ID_NAME,
 404         .size      = sizeof(VIRTIO_ID_NAME_MOUSE),
 405         .u.string  = VIRTIO_ID_NAME_MOUSE,
 406     },{
 407         .select    = VIRTIO_INPUT_CFG_ID_DEVIDS,
 408         .size      = sizeof(struct virtio_input_devids),
 409         .u.ids     = {
 410             .bustype = const_le16(BUS_VIRTUAL),
 411             .vendor  = const_le16(0x0627), /* same we use for usb hid devices */
 412             .product = const_le16(0x0002),
 413             .version = const_le16(0x0001),
 414         },
 415     },{
 416         .select    = VIRTIO_INPUT_CFG_EV_BITS,
 417         .subsel    = EV_REL,
 418         .size      = 1,
 419         .u.bitmap  = {
 420             (1 << REL_X) | (1 << REL_Y),
 421         },
 422     },
 423     { /* end of list */ },
 424 };
 425
 426 static void virtio_mouse_init(Object *obj)
 427 {
 428     VirtIOInputHID *vhid = VIRTIO_INPUT_HID(obj);
 429     VirtIOInput *vinput = VIRTIO_INPUT(obj);
 430
 431     vhid->handler = &virtio_mouse_handler;
 432     virtio_input_init_config(vinput, virtio_mouse_config);
 433     virtio_input_key_config(vinput, keymap_button,
 434                             ARRAY_SIZE(keymap_button));
 435 }
 436
 437 static const TypeInfo virtio_mouse_info = {
 438     .name          = TYPE_VIRTIO_MOUSE,
 439     .parent        = TYPE_VIRTIO_INPUT_HID,
 440     .instance_size = sizeof(VirtIOInputHID),
 441     .instance_init = virtio_mouse_init,
 442 };
 443
 444 /* ----------------------------------------------------------------- */
 445
 446 static QemuInputHandler virtio_tablet_handler = {
 447     .name  = VIRTIO_ID_NAME_TABLET,
 448     .mask  = INPUT_EVENT_MASK_BTN | INPUT_EVENT_MASK_ABS,
 449     .event = virtio_input_handle_event,
 450     .sync  = virtio_input_handle_sync,
 451 };
 452
 453 static struct virtio_input_config virtio_tablet_config[] = {
 454     {
 455         .select    = VIRTIO_INPUT_CFG_ID_NAME,
 456         .size      = sizeof(VIRTIO_ID_NAME_TABLET),
 457         .u.string  = VIRTIO_ID_NAME_TABLET,
 458     },{
 459         .select    = VIRTIO_INPUT_CFG_ID_DEVIDS,
 460         .size      = sizeof(struct virtio_input_devids),
 461         .u.ids     = {
 462             .bustype = const_le16(BUS_VIRTUAL),
 463             .vendor  = const_le16(0x0627), /* same we use for usb hid devices */
 464             .product = const_le16(0x0003),
 465             .version = const_le16(0x0001),
 466         },
 467     },{
 468         .select    = VIRTIO_INPUT_CFG_EV_BITS,
 469         .subsel    = EV_ABS,
 470         .size      = 1,
 471         .u.bitmap  = {
 472             (1 << ABS_X) | (1 << ABS_Y),
 473         },
 474     },{
 475         .select    = VIRTIO_INPUT_CFG_ABS_INFO,
 476         .subsel    = ABS_X,
 477         .size      = sizeof(virtio_input_absinfo),
 478         .u.abs.max = const_le32(INPUT_EVENT_ABS_SIZE),
 479     },{
 480         .select    = VIRTIO_INPUT_CFG_ABS_INFO,
 481         .subsel    = ABS_Y,
 482         .size      = sizeof(virtio_input_absinfo),
 483         .u.abs.max = const_le32(INPUT_EVENT_ABS_SIZE),
 484     },
 485     { /* end of list */ },
 486 };
 487
 488 static void virtio_tablet_init(Object *obj)
 489 {
 490     VirtIOInputHID *vhid = VIRTIO_INPUT_HID(obj);
 491     VirtIOInput *vinput = VIRTIO_INPUT(obj);
 492
 493     vhid->handler = &virtio_tablet_handler;
 494     virtio_input_init_config(vinput, virtio_tablet_config);
 495     virtio_input_key_config(vinput, keymap_button,
 496                             ARRAY_SIZE(keymap_button));
 497 }
 498
 499 static const TypeInfo virtio_tablet_info = {
 500     .name          = TYPE_VIRTIO_TABLET,
 501     .parent        = TYPE_VIRTIO_INPUT_HID,
 502     .instance_size = sizeof(VirtIOInputHID),
 503     .instance_init = virtio_tablet_init,
 504 };
 505
 506 /* ----------------------------------------------------------------- */
 507
 508 static void virtio_register_types(void)
 509 {
 510     type_register_static(&virtio_input_hid_info);
 511     type_register_static(&virtio_keyboard_info);
 512     type_register_static(&virtio_mouse_info);
 513     type_register_static(&virtio_tablet_info);
 514 }
 515
 516 type_init(virtio_register_types)