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_PRINT]               = KEY_SYSRQ,
 125     [Q_KEY_CODE_PAUSE]               = KEY_PAUSE,
 126     [Q_KEY_CODE_ALT_R]               = KEY_RIGHTALT,
 127
 128     [Q_KEY_CODE_HOME]                = KEY_HOME,
 129     [Q_KEY_CODE_UP]                  = KEY_UP,
 130     [Q_KEY_CODE_PGUP]                = KEY_PAGEUP,
 131     [Q_KEY_CODE_LEFT]                = KEY_LEFT,
 132     [Q_KEY_CODE_RIGHT]               = KEY_RIGHT,
 133     [Q_KEY_CODE_END]                 = KEY_END,
 134     [Q_KEY_CODE_DOWN]                = KEY_DOWN,
 135     [Q_KEY_CODE_PGDN]                = KEY_PAGEDOWN,
 136     [Q_KEY_CODE_INSERT]              = KEY_INSERT,
 137     [Q_KEY_CODE_DELETE]              = KEY_DELETE,
 138
 139     [Q_KEY_CODE_META_L]              = KEY_LEFTMETA,
 140     [Q_KEY_CODE_META_R]              = KEY_RIGHTMETA,
 141     [Q_KEY_CODE_MENU]                = KEY_MENU,
 142 };
 143
 144 static const unsigned int keymap_button[INPUT_BUTTON__MAX] = {
 145     [INPUT_BUTTON_LEFT]              = BTN_LEFT,
 146     [INPUT_BUTTON_RIGHT]             = BTN_RIGHT,
 147     [INPUT_BUTTON_MIDDLE]            = BTN_MIDDLE,
 148     [INPUT_BUTTON_WHEEL_UP]          = BTN_GEAR_UP,
 149     [INPUT_BUTTON_WHEEL_DOWN]        = BTN_GEAR_DOWN,
 150 };
 151
 152 static const unsigned int axismap_rel[INPUT_AXIS__MAX] = {
 153     [INPUT_AXIS_X]                   = REL_X,
 154     [INPUT_AXIS_Y]                   = REL_Y,
 155 };
 156
 157 static const unsigned int axismap_abs[INPUT_AXIS__MAX] = {
 158     [INPUT_AXIS_X]                   = ABS_X,
 159     [INPUT_AXIS_Y]                   = ABS_Y,
 160 };
 161
 162 /* ----------------------------------------------------------------- */
 163
 164 static void virtio_input_key_config(VirtIOInput *vinput,
 165                                     const unsigned int *keymap,
 166                                     size_t mapsize)
 167 {
 168     virtio_input_config keys;
 169     int i, bit, byte, bmax = 0;
 170
 171     memset(&keys, 0, sizeof(keys));
 172     for (i = 0; i < mapsize; i++) {
 173         bit = keymap[i];
 174         if (!bit) {
 175             continue;
 176         }
 177         byte = bit / 8;
 178         bit  = bit % 8;
 179         keys.u.bitmap[byte] |= (1 << bit);
 180         if (bmax < byte+1) {
 181             bmax = byte+1;
 182         }
 183     }
 184     keys.select = VIRTIO_INPUT_CFG_EV_BITS;
 185     keys.subsel = EV_KEY;
 186     keys.size   = bmax;
 187     virtio_input_add_config(vinput, &keys);
 188 }
 189
 190 static void virtio_input_handle_event(DeviceState *dev, QemuConsole *src,
 191                                       InputEvent *evt)
 192 {
 193     VirtIOInputHID *vhid = VIRTIO_INPUT_HID(dev);
 194     VirtIOInput *vinput = VIRTIO_INPUT(dev);
 195     virtio_input_event event;
 196     int qcode;
 197     InputKeyEvent *key;
 198     InputMoveEvent *move;
 199     InputBtnEvent *btn;
 200
 201     switch (evt->type) {
 202     case INPUT_EVENT_KIND_KEY:
 203         key = evt->u.key.data;
 204         qcode = qemu_input_key_value_to_qcode(key->key);
 205         if (qcode && keymap_qcode[qcode]) {
 206             event.type  = cpu_to_le16(EV_KEY);
 207             event.code  = cpu_to_le16(keymap_qcode[qcode]);
 208             event.value = cpu_to_le32(key->down ? 1 : 0);
 209             virtio_input_send(vinput, &event);
 210         } else {
 211             if (key->down) {
 212                 fprintf(stderr, "%s: unmapped key: %d [%s]\n", __func__,
 213                         qcode, QKeyCode_str(qcode));
 214             }
 215         }
 216         break;
 217     case INPUT_EVENT_KIND_BTN:
 218         btn = evt->u.btn.data;
 219         if (vhid->wheel_axis && (btn->button == INPUT_BUTTON_WHEEL_UP ||
 220                                  btn->button == INPUT_BUTTON_WHEEL_DOWN)) {
 221             event.type  = cpu_to_le16(EV_REL);
 222             event.code  = cpu_to_le16(REL_WHEEL);
 223             event.value = cpu_to_le32(btn->button == INPUT_BUTTON_WHEEL_UP
 224                                       ? 1 : -1);
 225             virtio_input_send(vinput, &event);
 226         } else if (keymap_button[btn->button]) {
 227             event.type  = cpu_to_le16(EV_KEY);
 228             event.code  = cpu_to_le16(keymap_button[btn->button]);
 229             event.value = cpu_to_le32(btn->down ? 1 : 0);
 230             virtio_input_send(vinput, &event);
 231         } else {
 232             if (btn->down) {
 233                 fprintf(stderr, "%s: unmapped button: %d [%s]\n", __func__,
 234                         btn->button,
 235                         InputButton_str(btn->button));
 236             }
 237         }
 238         break;
 239     case INPUT_EVENT_KIND_REL:
 240         move = evt->u.rel.data;
 241         event.type  = cpu_to_le16(EV_REL);
 242         event.code  = cpu_to_le16(axismap_rel[move->axis]);
 243         event.value = cpu_to_le32(move->value);
 244         virtio_input_send(vinput, &event);
 245         break;
 246     case INPUT_EVENT_KIND_ABS:
 247         move = evt->u.abs.data;
 248         event.type  = cpu_to_le16(EV_ABS);
 249         event.code  = cpu_to_le16(axismap_abs[move->axis]);
 250         event.value = cpu_to_le32(move->value);
 251         virtio_input_send(vinput, &event);
 252         break;
 253     default:
 254         /* keep gcc happy */
 255         break;
 256     }
 257 }
 258
 259 static void virtio_input_handle_sync(DeviceState *dev)
 260 {
 261     VirtIOInput *vinput = VIRTIO_INPUT(dev);
 262     virtio_input_event event = {
 263         .type  = cpu_to_le16(EV_SYN),
 264         .code  = cpu_to_le16(SYN_REPORT),
 265         .value = 0,
 266     };
 267
 268     virtio_input_send(vinput, &event);
 269 }
 270
 271 static void virtio_input_hid_realize(DeviceState *dev, Error **errp)
 272 {
 273     VirtIOInputHID *vhid = VIRTIO_INPUT_HID(dev);
 274
 275     vhid->hs = qemu_input_handler_register(dev, vhid->handler);
 276     if (vhid->display && vhid->hs) {
 277         qemu_input_handler_bind(vhid->hs, vhid->display, vhid->head, NULL);
 278     }
 279 }
 280
 281 static void virtio_input_hid_unrealize(DeviceState *dev, Error **errp)
 282 {
 283     VirtIOInputHID *vhid = VIRTIO_INPUT_HID(dev);
 284     qemu_input_handler_unregister(vhid->hs);
 285 }
 286
 287 static void virtio_input_hid_change_active(VirtIOInput *vinput)
 288 {
 289     VirtIOInputHID *vhid = VIRTIO_INPUT_HID(vinput);
 290
 291     if (vinput->active) {
 292         qemu_input_handler_activate(vhid->hs);
 293     } else {
 294         qemu_input_handler_deactivate(vhid->hs);
 295     }
 296 }
 297
 298 static void virtio_input_hid_handle_status(VirtIOInput *vinput,
 299                                            virtio_input_event *event)
 300 {
 301     VirtIOInputHID *vhid = VIRTIO_INPUT_HID(vinput);
 302     int ledbit = 0;
 303
 304     switch (le16_to_cpu(event->type)) {
 305     case EV_LED:
 306         if (event->code == LED_NUML) {
 307             ledbit = QEMU_NUM_LOCK_LED;
 308         } else if (event->code == LED_CAPSL) {
 309             ledbit = QEMU_CAPS_LOCK_LED;
 310         } else if (event->code == LED_SCROLLL) {
 311             ledbit = QEMU_SCROLL_LOCK_LED;
 312         }
 313         if (event->value) {
 314             vhid->ledstate |= ledbit;
 315         } else {
 316             vhid->ledstate &= ~ledbit;
 317         }
 318         kbd_put_ledstate(vhid->ledstate);
 319         break;
 320     default:
 321         fprintf(stderr, "%s: unknown type %d\n", __func__,
 322                 le16_to_cpu(event->type));
 323         break;
 324     }
 325 }
 326
 327 static Property virtio_input_hid_properties[] = {
 328     DEFINE_PROP_STRING("display", VirtIOInputHID, display),
 329     DEFINE_PROP_UINT32("head", VirtIOInputHID, head, 0),
 330     DEFINE_PROP_END_OF_LIST(),
 331 };
 332
 333 static void virtio_input_hid_class_init(ObjectClass *klass, void *data)
 334 {
 335     DeviceClass *dc = DEVICE_CLASS(klass);
 336     VirtIOInputClass *vic = VIRTIO_INPUT_CLASS(klass);
 337
 338     dc->props          = virtio_input_hid_properties;
 339     vic->realize       = virtio_input_hid_realize;
 340     vic->unrealize     = virtio_input_hid_unrealize;
 341     vic->change_active = virtio_input_hid_change_active;
 342     vic->handle_status = virtio_input_hid_handle_status;
 343 }
 344
 345 static const TypeInfo virtio_input_hid_info = {
 346     .name          = TYPE_VIRTIO_INPUT_HID,
 347     .parent        = TYPE_VIRTIO_INPUT,
 348     .instance_size = sizeof(VirtIOInputHID),
 349     .class_init    = virtio_input_hid_class_init,
 350     .abstract      = true,
 351 };
 352
 353 /* ----------------------------------------------------------------- */
 354
 355 static QemuInputHandler virtio_keyboard_handler = {
 356     .name  = VIRTIO_ID_NAME_KEYBOARD,
 357     .mask  = INPUT_EVENT_MASK_KEY,
 358     .event = virtio_input_handle_event,
 359     .sync  = virtio_input_handle_sync,
 360 };
 361
 362 static struct virtio_input_config virtio_keyboard_config[] = {
 363     {
 364         .select    = VIRTIO_INPUT_CFG_ID_NAME,
 365         .size      = sizeof(VIRTIO_ID_NAME_KEYBOARD),
 366         .u.string  = VIRTIO_ID_NAME_KEYBOARD,
 367     },{
 368         .select    = VIRTIO_INPUT_CFG_ID_DEVIDS,
 369         .size      = sizeof(struct virtio_input_devids),
 370         .u.ids     = {
 371             .bustype = const_le16(BUS_VIRTUAL),
 372             .vendor  = const_le16(0x0627), /* same we use for usb hid devices */
 373             .product = const_le16(0x0001),
 374             .version = const_le16(0x0001),
 375         },
 376     },{
 377         .select    = VIRTIO_INPUT_CFG_EV_BITS,
 378         .subsel    = EV_REP,
 379         .size      = 1,
 380     },{
 381         .select    = VIRTIO_INPUT_CFG_EV_BITS,
 382         .subsel    = EV_LED,
 383         .size      = 1,
 384         .u.bitmap  = {
 385             (1 << LED_NUML) | (1 << LED_CAPSL) | (1 << LED_SCROLLL),
 386         },
 387     },
 388     { /* end of list */ },
 389 };
 390
 391 static void virtio_keyboard_init(Object *obj)
 392 {
 393     VirtIOInputHID *vhid = VIRTIO_INPUT_HID(obj);
 394     VirtIOInput *vinput = VIRTIO_INPUT(obj);
 395
 396     vhid->handler = &virtio_keyboard_handler;
 397     virtio_input_init_config(vinput, virtio_keyboard_config);
 398     virtio_input_key_config(vinput, keymap_qcode,
 399                             ARRAY_SIZE(keymap_qcode));
 400 }
 401
 402 static const TypeInfo virtio_keyboard_info = {
 403     .name          = TYPE_VIRTIO_KEYBOARD,
 404     .parent        = TYPE_VIRTIO_INPUT_HID,
 405     .instance_size = sizeof(VirtIOInputHID),
 406     .instance_init = virtio_keyboard_init,
 407 };
 408
 409 /* ----------------------------------------------------------------- */
 410
 411 static QemuInputHandler virtio_mouse_handler = {
 412     .name  = VIRTIO_ID_NAME_MOUSE,
 413     .mask  = INPUT_EVENT_MASK_BTN | INPUT_EVENT_MASK_REL,
 414     .event = virtio_input_handle_event,
 415     .sync  = virtio_input_handle_sync,
 416 };
 417
 418 static struct virtio_input_config virtio_mouse_config_v1[] = {
 419     {
 420         .select    = VIRTIO_INPUT_CFG_ID_NAME,
 421         .size      = sizeof(VIRTIO_ID_NAME_MOUSE),
 422         .u.string  = VIRTIO_ID_NAME_MOUSE,
 423     },{
 424         .select    = VIRTIO_INPUT_CFG_ID_DEVIDS,
 425         .size      = sizeof(struct virtio_input_devids),
 426         .u.ids     = {
 427             .bustype = const_le16(BUS_VIRTUAL),
 428             .vendor  = const_le16(0x0627), /* same we use for usb hid devices */
 429             .product = const_le16(0x0002),
 430             .version = const_le16(0x0001),
 431         },
 432     },{
 433         .select    = VIRTIO_INPUT_CFG_EV_BITS,
 434         .subsel    = EV_REL,
 435         .size      = 1,
 436         .u.bitmap  = {
 437             (1 << REL_X) | (1 << REL_Y),
 438         },
 439     },
 440     { /* end of list */ },
 441 };
 442
 443 static struct virtio_input_config virtio_mouse_config_v2[] = {
 444     {
 445         .select    = VIRTIO_INPUT_CFG_ID_NAME,
 446         .size      = sizeof(VIRTIO_ID_NAME_MOUSE),
 447         .u.string  = VIRTIO_ID_NAME_MOUSE,
 448     },{
 449         .select    = VIRTIO_INPUT_CFG_ID_DEVIDS,
 450         .size      = sizeof(struct virtio_input_devids),
 451         .u.ids     = {
 452             .bustype = const_le16(BUS_VIRTUAL),
 453             .vendor  = const_le16(0x0627), /* same we use for usb hid devices */
 454             .product = const_le16(0x0002),
 455             .version = const_le16(0x0002),
 456         },
 457     },{
 458         .select    = VIRTIO_INPUT_CFG_EV_BITS,
 459         .subsel    = EV_REL,
 460         .size      = 2,
 461         .u.bitmap  = {
 462             (1 << REL_X) | (1 << REL_Y),
 463             (1 << (REL_WHEEL - 8))
 464         },
 465     },
 466     { /* end of list */ },
 467 };
 468
 469 static Property virtio_mouse_properties[] = {
 470     DEFINE_PROP_BOOL("wheel-axis", VirtIOInputHID, wheel_axis, true),
 471     DEFINE_PROP_END_OF_LIST(),
 472 };
 473
 474 static void virtio_mouse_class_init(ObjectClass *klass, void *data)
 475 {
 476     DeviceClass *dc = DEVICE_CLASS(klass);
 477
 478     dc->props  = virtio_mouse_properties;
 479 }
 480
 481 static void virtio_mouse_init(Object *obj)
 482 {
 483     VirtIOInputHID *vhid = VIRTIO_INPUT_HID(obj);
 484     VirtIOInput *vinput = VIRTIO_INPUT(obj);
 485
 486     vhid->handler = &virtio_mouse_handler;
 487     virtio_input_init_config(vinput, vhid->wheel_axis
 488                              ? virtio_mouse_config_v2
 489                              : virtio_mouse_config_v1);
 490     virtio_input_key_config(vinput, keymap_button,
 491                             ARRAY_SIZE(keymap_button));
 492 }
 493
 494 static const TypeInfo virtio_mouse_info = {
 495     .name          = TYPE_VIRTIO_MOUSE,
 496     .parent        = TYPE_VIRTIO_INPUT_HID,
 497     .instance_size = sizeof(VirtIOInputHID),
 498     .instance_init = virtio_mouse_init,
 499     .class_init    = virtio_mouse_class_init,
 500 };
 501
 502 /* ----------------------------------------------------------------- */
 503
 504 static QemuInputHandler virtio_tablet_handler = {
 505     .name  = VIRTIO_ID_NAME_TABLET,
 506     .mask  = INPUT_EVENT_MASK_BTN | INPUT_EVENT_MASK_ABS,
 507     .event = virtio_input_handle_event,
 508     .sync  = virtio_input_handle_sync,
 509 };
 510
 511 static struct virtio_input_config virtio_tablet_config_v1[] = {
 512     {
 513         .select    = VIRTIO_INPUT_CFG_ID_NAME,
 514         .size      = sizeof(VIRTIO_ID_NAME_TABLET),
 515         .u.string  = VIRTIO_ID_NAME_TABLET,
 516     },{
 517         .select    = VIRTIO_INPUT_CFG_ID_DEVIDS,
 518         .size      = sizeof(struct virtio_input_devids),
 519         .u.ids     = {
 520             .bustype = const_le16(BUS_VIRTUAL),
 521             .vendor  = const_le16(0x0627), /* same we use for usb hid devices */
 522             .product = const_le16(0x0003),
 523             .version = const_le16(0x0001),
 524         },
 525     },{
 526         .select    = VIRTIO_INPUT_CFG_EV_BITS,
 527         .subsel    = EV_ABS,
 528         .size      = 1,
 529         .u.bitmap  = {
 530             (1 << ABS_X) | (1 << ABS_Y),
 531         },
 532     },{
 533         .select    = VIRTIO_INPUT_CFG_ABS_INFO,
 534         .subsel    = ABS_X,
 535         .size      = sizeof(virtio_input_absinfo),
 536         .u.abs.min = const_le32(INPUT_EVENT_ABS_MIN),
 537         .u.abs.max = const_le32(INPUT_EVENT_ABS_MAX),
 538     },{
 539         .select    = VIRTIO_INPUT_CFG_ABS_INFO,
 540         .subsel    = ABS_Y,
 541         .size      = sizeof(virtio_input_absinfo),
 542         .u.abs.min = const_le32(INPUT_EVENT_ABS_MIN),
 543         .u.abs.max = const_le32(INPUT_EVENT_ABS_MAX),
 544     },
 545     { /* end of list */ },
 546 };
 547
 548 static struct virtio_input_config virtio_tablet_config_v2[] = {
 549     {
 550         .select    = VIRTIO_INPUT_CFG_ID_NAME,
 551         .size      = sizeof(VIRTIO_ID_NAME_TABLET),
 552         .u.string  = VIRTIO_ID_NAME_TABLET,
 553     },{
 554         .select    = VIRTIO_INPUT_CFG_ID_DEVIDS,
 555         .size      = sizeof(struct virtio_input_devids),
 556         .u.ids     = {
 557             .bustype = const_le16(BUS_VIRTUAL),
 558             .vendor  = const_le16(0x0627), /* same we use for usb hid devices */
 559             .product = const_le16(0x0003),
 560             .version = const_le16(0x0002),
 561         },
 562     },{
 563         .select    = VIRTIO_INPUT_CFG_EV_BITS,
 564         .subsel    = EV_ABS,
 565         .size      = 1,
 566         .u.bitmap  = {
 567             (1 << ABS_X) | (1 << ABS_Y),
 568         },
 569     },{
 570         .select    = VIRTIO_INPUT_CFG_EV_BITS,
 571         .subsel    = EV_REL,
 572         .size      = 2,
 573         .u.bitmap  = {
 574             0,
 575             (1 << (REL_WHEEL - 8))
 576         },
 577     },{
 578         .select    = VIRTIO_INPUT_CFG_ABS_INFO,
 579         .subsel    = ABS_X,
 580         .size      = sizeof(virtio_input_absinfo),
 581         .u.abs.min = const_le32(INPUT_EVENT_ABS_MIN),
 582         .u.abs.max = const_le32(INPUT_EVENT_ABS_MAX),
 583     },{
 584         .select    = VIRTIO_INPUT_CFG_ABS_INFO,
 585         .subsel    = ABS_Y,
 586         .size      = sizeof(virtio_input_absinfo),
 587         .u.abs.min = const_le32(INPUT_EVENT_ABS_MIN),
 588         .u.abs.max = const_le32(INPUT_EVENT_ABS_MAX),
 589     },
 590     { /* end of list */ },
 591 };
 592
 593 static Property virtio_tablet_properties[] = {
 594     DEFINE_PROP_BOOL("wheel-axis", VirtIOInputHID, wheel_axis, true),
 595     DEFINE_PROP_END_OF_LIST(),
 596 };
 597
 598 static void virtio_tablet_class_init(ObjectClass *klass, void *data)
 599 {
 600     DeviceClass *dc = DEVICE_CLASS(klass);
 601
 602     dc->props  = virtio_tablet_properties;
 603 }
 604
 605 static void virtio_tablet_init(Object *obj)
 606 {
 607     VirtIOInputHID *vhid = VIRTIO_INPUT_HID(obj);
 608     VirtIOInput *vinput = VIRTIO_INPUT(obj);
 609
 610     vhid->handler = &virtio_tablet_handler;
 611     virtio_input_init_config(vinput, vhid->wheel_axis
 612                              ? virtio_tablet_config_v2
 613                              : virtio_tablet_config_v1);
 614     virtio_input_key_config(vinput, keymap_button,
 615                             ARRAY_SIZE(keymap_button));
 616 }
 617
 618 static const TypeInfo virtio_tablet_info = {
 619     .name          = TYPE_VIRTIO_TABLET,
 620     .parent        = TYPE_VIRTIO_INPUT_HID,
 621     .instance_size = sizeof(VirtIOInputHID),
 622     .instance_init = virtio_tablet_init,
 623     .class_init    = virtio_tablet_class_init,
 624 };
 625
 626 /* ----------------------------------------------------------------- */
 627
 628 static void virtio_register_types(void)
 629 {
 630     type_register_static(&virtio_input_hid_info);
 631     type_register_static(&virtio_keyboard_info);
 632     type_register_static(&virtio_mouse_info);
 633     type_register_static(&virtio_tablet_info);
 634 }
 635
 636 type_init(virtio_register_types)