| 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 | #include "qemu/log.h" |
| 10 | #include "qemu/module.h" |
| 11 | |
| 12 | #include "hw/virtio/virtio.h" |
| 13 | #include "hw/core/qdev-properties.h" |
| 14 | #include "hw/virtio/virtio-input.h" |
| 15 | #include "ui/input.h" |
| 16 | |
| 17 | #include "ui/console.h" |
| 18 | |
| 19 | #include "standard-headers/linux/input.h" |
| 20 | |
| 21 | #define VIRTIO_ID_NAME_KEYBOARD "QEMU Virtio Keyboard" |
| 22 | #define VIRTIO_ID_NAME_MOUSE "QEMU Virtio Mouse" |
| 23 | #define VIRTIO_ID_NAME_TABLET "QEMU Virtio Tablet" |
| 24 | #define VIRTIO_ID_NAME_MULTITOUCH "QEMU Virtio MultiTouch" |
| 25 | |
| 26 | /* ----------------------------------------------------------------- */ |
| 27 | |
| 28 | static const unsigned short keymap_button[INPUT_BUTTON__MAX] = { |
| 29 | [INPUT_BUTTON_LEFT] = BTN_LEFT, |
| 30 | [INPUT_BUTTON_RIGHT] = BTN_RIGHT, |
| 31 | [INPUT_BUTTON_MIDDLE] = BTN_MIDDLE, |
| 32 | [INPUT_BUTTON_WHEEL_UP] = BTN_GEAR_UP, |
| 33 | [INPUT_BUTTON_WHEEL_DOWN] = BTN_GEAR_DOWN, |
| 34 | [INPUT_BUTTON_SIDE] = BTN_SIDE, |
| 35 | [INPUT_BUTTON_EXTRA] = BTN_EXTRA, |
| 36 | [INPUT_BUTTON_TOUCH] = BTN_TOUCH, |
| 37 | }; |
| 38 | |
| 39 | static const unsigned short axismap_rel[INPUT_AXIS__MAX] = { |
| 40 | [INPUT_AXIS_X] = REL_X, |
| 41 | [INPUT_AXIS_Y] = REL_Y, |
| 42 | }; |
| 43 | |
| 44 | static const unsigned short axismap_abs[INPUT_AXIS__MAX] = { |
| 45 | [INPUT_AXIS_X] = ABS_X, |
| 46 | [INPUT_AXIS_Y] = ABS_Y, |
| 47 | }; |
| 48 | |
| 49 | static const unsigned short axismap_tch[INPUT_AXIS__MAX] = { |
| 50 | [INPUT_AXIS_X] = ABS_MT_POSITION_X, |
| 51 | [INPUT_AXIS_Y] = ABS_MT_POSITION_Y, |
| 52 | }; |
| 53 | |
| 54 | /* ----------------------------------------------------------------- */ |
| 55 | |
| 56 | static void virtio_input_extend_config(VirtIOInput *vinput, |
| 57 | const unsigned short *map, |
| 58 | size_t mapsize, |
| 59 | uint8_t select, uint8_t subsel) |
| 60 | { |
| 61 | virtio_input_config ext; |
| 62 | int i, bit, byte, bmax = 0; |
| 63 | |
| 64 | memset(&ext, 0, sizeof(ext)); |
| 65 | for (i = 0; i < mapsize; i++) { |
| 66 | bit = map[i]; |
| 67 | if (!bit) { |
| 68 | continue; |
| 69 | } |
| 70 | byte = bit / 8; |
| 71 | bit = bit % 8; |
| 72 | ext.u.bitmap[byte] |= (1 << bit); |
| 73 | if (bmax < byte+1) { |
| 74 | bmax = byte+1; |
| 75 | } |
| 76 | } |
| 77 | ext.select = select; |
| 78 | ext.subsel = subsel; |
| 79 | ext.size = bmax; |
| 80 | virtio_input_add_config(vinput, &ext); |
| 81 | } |
| 82 | |
| 83 | static void virtio_input_handle_event(DeviceState *dev, QemuConsole *src, |
| 84 | QemuInputEvent *evt) |
| 85 | { |
| 86 | VirtIOInput *vinput = VIRTIO_INPUT(dev); |
| 87 | virtio_input_event event; |
| 88 | |
| 89 | switch (evt->type) { |
| 90 | case INPUT_EVENT_KIND_KEY: |
| 91 | event.type = cpu_to_le16(EV_KEY); |
| 92 | event.code = cpu_to_le16(evt->key.key); |
| 93 | event.value = cpu_to_le32(evt->key.down ? 1 : 0); |
| 94 | virtio_input_send(vinput, &event); |
| 95 | break; |
| 96 | case INPUT_EVENT_KIND_BTN: |
| 97 | if ((evt->btn.button == INPUT_BUTTON_WHEEL_UP || |
| 98 | evt->btn.button == INPUT_BUTTON_WHEEL_DOWN) && |
| 99 | evt->btn.down) { |
| 100 | event.type = cpu_to_le16(EV_REL); |
| 101 | event.code = cpu_to_le16(REL_WHEEL); |
| 102 | event.value = cpu_to_le32(evt->btn.button == INPUT_BUTTON_WHEEL_UP |
| 103 | ? 1 : -1); |
| 104 | virtio_input_send(vinput, &event); |
| 105 | } else if (keymap_button[evt->btn.button]) { |
| 106 | event.type = cpu_to_le16(EV_KEY); |
| 107 | event.code = cpu_to_le16(keymap_button[evt->btn.button]); |
| 108 | event.value = cpu_to_le32(evt->btn.down ? 1 : 0); |
| 109 | virtio_input_send(vinput, &event); |
| 110 | } else { |
| 111 | if (evt->btn.down) { |
| 112 | qemu_log_mask(LOG_GUEST_ERROR, |
| 113 | "%s: unmapped button: %d [%s]\n", __func__, |
| 114 | evt->btn.button, InputButton_str(evt->btn.button)); |
| 115 | } |
| 116 | } |
| 117 | break; |
| 118 | case INPUT_EVENT_KIND_REL: |
| 119 | event.type = cpu_to_le16(EV_REL); |
| 120 | event.code = cpu_to_le16(axismap_rel[evt->rel.axis]); |
| 121 | event.value = cpu_to_le32(evt->rel.value); |
| 122 | virtio_input_send(vinput, &event); |
| 123 | break; |
| 124 | case INPUT_EVENT_KIND_ABS: |
| 125 | event.type = cpu_to_le16(EV_ABS); |
| 126 | event.code = cpu_to_le16(axismap_abs[evt->abs.axis]); |
| 127 | event.value = cpu_to_le32(evt->abs.value); |
| 128 | virtio_input_send(vinput, &event); |
| 129 | break; |
| 130 | case INPUT_EVENT_KIND_MTT: |
| 131 | if (evt->mtt.type == INPUT_MULTI_TOUCH_TYPE_DATA) { |
| 132 | event.type = cpu_to_le16(EV_ABS); |
| 133 | event.code = cpu_to_le16(axismap_tch[evt->mtt.axis]); |
| 134 | event.value = cpu_to_le32(evt->mtt.value); |
| 135 | virtio_input_send(vinput, &event); |
| 136 | } else { |
| 137 | event.type = cpu_to_le16(EV_ABS); |
| 138 | event.code = cpu_to_le16(ABS_MT_SLOT); |
| 139 | event.value = cpu_to_le32(evt->mtt.slot); |
| 140 | virtio_input_send(vinput, &event); |
| 141 | event.type = cpu_to_le16(EV_ABS); |
| 142 | event.code = cpu_to_le16(ABS_MT_TRACKING_ID); |
| 143 | event.value = cpu_to_le32(evt->mtt.tracking_id); |
| 144 | virtio_input_send(vinput, &event); |
| 145 | } |
| 146 | break; |
| 147 | default: |
| 148 | /* keep gcc happy */ |
| 149 | break; |
| 150 | } |
| 151 | } |
| 152 | |
| 153 | static void virtio_input_handle_sync(DeviceState *dev) |
| 154 | { |
| 155 | VirtIOInput *vinput = VIRTIO_INPUT(dev); |
| 156 | virtio_input_event event = { |
| 157 | .type = cpu_to_le16(EV_SYN), |
| 158 | .code = cpu_to_le16(SYN_REPORT), |
| 159 | .value = 0, |
| 160 | }; |
| 161 | |
| 162 | virtio_input_send(vinput, &event); |
| 163 | } |
| 164 | |
| 165 | static void virtio_input_hid_realize(DeviceState *dev, Error **errp) |
| 166 | { |
| 167 | VirtIOInputHID *vhid = VIRTIO_INPUT_HID(dev); |
| 168 | |
| 169 | vhid->hs = qemu_input_handler_register(dev, vhid->handler); |
| 170 | if (vhid->display && vhid->hs) { |
| 171 | qemu_input_handler_bind(vhid->hs, vhid->display, vhid->head, NULL); |
| 172 | } |
| 173 | } |
| 174 | |
| 175 | static void virtio_input_hid_unrealize(DeviceState *dev) |
| 176 | { |
| 177 | VirtIOInputHID *vhid = VIRTIO_INPUT_HID(dev); |
| 178 | qemu_input_handler_unregister(vhid->hs); |
| 179 | } |
| 180 | |
| 181 | static void virtio_input_hid_change_active(VirtIOInput *vinput) |
| 182 | { |
| 183 | VirtIOInputHID *vhid = VIRTIO_INPUT_HID(vinput); |
| 184 | |
| 185 | if (vinput->active) { |
| 186 | qemu_input_handler_activate(vhid->hs); |
| 187 | } else { |
| 188 | qemu_input_handler_deactivate(vhid->hs); |
| 189 | } |
| 190 | } |
| 191 | |
| 192 | static void virtio_input_hid_handle_status(VirtIOInput *vinput, |
| 193 | virtio_input_event *event) |
| 194 | { |
| 195 | VirtIOInputHID *vhid = VIRTIO_INPUT_HID(vinput); |
| 196 | int ledbit = 0; |
| 197 | |
| 198 | switch (le16_to_cpu(event->type)) { |
| 199 | case EV_LED: |
| 200 | if (event->code == LED_NUML) { |
| 201 | ledbit = QEMU_NUM_LOCK_LED; |
| 202 | } else if (event->code == LED_CAPSL) { |
| 203 | ledbit = QEMU_CAPS_LOCK_LED; |
| 204 | } else if (event->code == LED_SCROLLL) { |
| 205 | ledbit = QEMU_SCROLL_LOCK_LED; |
| 206 | } |
| 207 | if (event->value) { |
| 208 | vhid->ledstate |= ledbit; |
| 209 | } else { |
| 210 | vhid->ledstate &= ~ledbit; |
| 211 | } |
| 212 | qemu_input_handler_set_leds_mask(vhid->hs, vhid->ledstate); |
| 213 | break; |
| 214 | default: |
| 215 | qemu_log_mask(LOG_GUEST_ERROR, |
| 216 | "%s: unknown type %d\n", __func__, |
| 217 | le16_to_cpu(event->type)); |
| 218 | break; |
| 219 | } |
| 220 | } |
| 221 | |
| 222 | static const Property virtio_input_hid_properties[] = { |
| 223 | DEFINE_PROP_STRING("display", VirtIOInputHID, display), |
| 224 | DEFINE_PROP_UINT32("head", VirtIOInputHID, head, 0), |
| 225 | }; |
| 226 | |
| 227 | static void virtio_input_hid_class_init(ObjectClass *klass, const void *data) |
| 228 | { |
| 229 | DeviceClass *dc = DEVICE_CLASS(klass); |
| 230 | VirtIOInputClass *vic = VIRTIO_INPUT_CLASS(klass); |
| 231 | |
| 232 | device_class_set_props(dc, virtio_input_hid_properties); |
| 233 | vic->realize = virtio_input_hid_realize; |
| 234 | vic->unrealize = virtio_input_hid_unrealize; |
| 235 | vic->change_active = virtio_input_hid_change_active; |
| 236 | vic->handle_status = virtio_input_hid_handle_status; |
| 237 | } |
| 238 | |
| 239 | static const TypeInfo virtio_input_hid_info = { |
| 240 | .name = TYPE_VIRTIO_INPUT_HID, |
| 241 | .parent = TYPE_VIRTIO_INPUT, |
| 242 | .instance_size = sizeof(VirtIOInputHID), |
| 243 | .class_init = virtio_input_hid_class_init, |
| 244 | .abstract = true, |
| 245 | }; |
| 246 | |
| 247 | /* ----------------------------------------------------------------- */ |
| 248 | |
| 249 | static const QemuInputHandler virtio_keyboard_handler = { |
| 250 | .name = VIRTIO_ID_NAME_KEYBOARD, |
| 251 | .mask = INPUT_EVENT_MASK_KEY, |
| 252 | .event = virtio_input_handle_event, |
| 253 | .sync = virtio_input_handle_sync, |
| 254 | }; |
| 255 | |
| 256 | static struct virtio_input_config virtio_keyboard_config[] = { |
| 257 | { |
| 258 | .select = VIRTIO_INPUT_CFG_ID_NAME, |
| 259 | .size = sizeof(VIRTIO_ID_NAME_KEYBOARD), |
| 260 | .u.string = VIRTIO_ID_NAME_KEYBOARD, |
| 261 | },{ |
| 262 | .select = VIRTIO_INPUT_CFG_ID_DEVIDS, |
| 263 | .size = sizeof(struct virtio_input_devids), |
| 264 | .u.ids = { |
| 265 | .bustype = const_le16(BUS_VIRTUAL), |
| 266 | .vendor = const_le16(0x0627), /* same we use for usb hid devices */ |
| 267 | .product = const_le16(0x0001), |
| 268 | .version = const_le16(0x0001), |
| 269 | }, |
| 270 | },{ |
| 271 | .select = VIRTIO_INPUT_CFG_EV_BITS, |
| 272 | .subsel = EV_REP, |
| 273 | .size = 1, |
| 274 | },{ |
| 275 | .select = VIRTIO_INPUT_CFG_EV_BITS, |
| 276 | .subsel = EV_LED, |
| 277 | .size = 1, |
| 278 | .u.bitmap = { |
| 279 | (1 << LED_NUML) | (1 << LED_CAPSL) | (1 << LED_SCROLLL), |
| 280 | }, |
| 281 | }, |
| 282 | { /* end of list */ }, |
| 283 | }; |
| 284 | |
| 285 | static void virtio_keyboard_init(Object *obj) |
| 286 | { |
| 287 | VirtIOInputHID *vhid = VIRTIO_INPUT_HID(obj); |
| 288 | VirtIOInput *vinput = VIRTIO_INPUT(obj); |
| 289 | virtio_input_config ext = { |
| 290 | .select = VIRTIO_INPUT_CFG_EV_BITS, |
| 291 | .subsel = EV_KEY, |
| 292 | .size = DIV_ROUND_UP(KEY_REPLY, 8) |
| 293 | }; |
| 294 | unsigned int i; |
| 295 | |
| 296 | vhid->handler = &virtio_keyboard_handler; |
| 297 | virtio_input_init_config(vinput, virtio_keyboard_config); |
| 298 | |
| 299 | /* |
| 300 | * Cover as many keys as possible since we cannot tell what keys the host |
| 301 | * supports. This follows Linux xen-kbdfront's approach: |
| 302 | * https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/diff/drivers/input/xen-kbdfront.c?id=4ee36dc08e5c4d16d078f59acd6d9d536f9718dd |
| 303 | * |
| 304 | * Stop before KEY_REPLY for migration compatibility. |
| 305 | */ |
| 306 | for (i = KEY_ESC; i < KEY_REPLY; i++) { |
| 307 | ext.u.bitmap[i / 8] |= (1 << (i % 8)); |
| 308 | } |
| 309 | |
| 310 | virtio_input_add_config(vinput, &ext); |
| 311 | } |
| 312 | |
| 313 | static const TypeInfo virtio_keyboard_info = { |
| 314 | .name = TYPE_VIRTIO_KEYBOARD, |
| 315 | .parent = TYPE_VIRTIO_INPUT_HID, |
| 316 | .instance_size = sizeof(VirtIOInputHID), |
| 317 | .instance_init = virtio_keyboard_init, |
| 318 | }; |
| 319 | |
| 320 | /* ----------------------------------------------------------------- */ |
| 321 | |
| 322 | static const QemuInputHandler virtio_mouse_handler = { |
| 323 | .name = VIRTIO_ID_NAME_MOUSE, |
| 324 | .mask = INPUT_EVENT_MASK_BTN | INPUT_EVENT_MASK_REL, |
| 325 | .event = virtio_input_handle_event, |
| 326 | .sync = virtio_input_handle_sync, |
| 327 | }; |
| 328 | |
| 329 | static struct virtio_input_config virtio_mouse_config[] = { |
| 330 | { |
| 331 | .select = VIRTIO_INPUT_CFG_ID_NAME, |
| 332 | .size = sizeof(VIRTIO_ID_NAME_MOUSE), |
| 333 | .u.string = VIRTIO_ID_NAME_MOUSE, |
| 334 | },{ |
| 335 | .select = VIRTIO_INPUT_CFG_ID_DEVIDS, |
| 336 | .size = sizeof(struct virtio_input_devids), |
| 337 | .u.ids = { |
| 338 | .bustype = const_le16(BUS_VIRTUAL), |
| 339 | .vendor = const_le16(0x0627), /* same we use for usb hid devices */ |
| 340 | .product = const_le16(0x0002), |
| 341 | .version = const_le16(0x0002), |
| 342 | }, |
| 343 | },{ |
| 344 | .select = VIRTIO_INPUT_CFG_EV_BITS, |
| 345 | .subsel = EV_REL, |
| 346 | .size = 2, |
| 347 | .u.bitmap = { |
| 348 | (1 << REL_X) | (1 << REL_Y), |
| 349 | (1 << (REL_WHEEL - 8)) |
| 350 | }, |
| 351 | }, |
| 352 | { /* end of list */ }, |
| 353 | }; |
| 354 | |
| 355 | static void virtio_mouse_init(Object *obj) |
| 356 | { |
| 357 | VirtIOInputHID *vhid = VIRTIO_INPUT_HID(obj); |
| 358 | VirtIOInput *vinput = VIRTIO_INPUT(obj); |
| 359 | |
| 360 | vhid->handler = &virtio_mouse_handler; |
| 361 | virtio_input_init_config(vinput, virtio_mouse_config); |
| 362 | virtio_input_extend_config(vinput, keymap_button, |
| 363 | ARRAY_SIZE(keymap_button), |
| 364 | VIRTIO_INPUT_CFG_EV_BITS, EV_KEY); |
| 365 | } |
| 366 | |
| 367 | static const TypeInfo virtio_mouse_info = { |
| 368 | .name = TYPE_VIRTIO_MOUSE, |
| 369 | .parent = TYPE_VIRTIO_INPUT_HID, |
| 370 | .instance_size = sizeof(VirtIOInputHID), |
| 371 | .instance_init = virtio_mouse_init, |
| 372 | }; |
| 373 | |
| 374 | /* ----------------------------------------------------------------- */ |
| 375 | |
| 376 | static const QemuInputHandler virtio_tablet_handler = { |
| 377 | .name = VIRTIO_ID_NAME_TABLET, |
| 378 | .mask = INPUT_EVENT_MASK_BTN | INPUT_EVENT_MASK_ABS, |
| 379 | .event = virtio_input_handle_event, |
| 380 | .sync = virtio_input_handle_sync, |
| 381 | }; |
| 382 | |
| 383 | static struct virtio_input_config virtio_tablet_config[] = { |
| 384 | { |
| 385 | .select = VIRTIO_INPUT_CFG_ID_NAME, |
| 386 | .size = sizeof(VIRTIO_ID_NAME_TABLET), |
| 387 | .u.string = VIRTIO_ID_NAME_TABLET, |
| 388 | },{ |
| 389 | .select = VIRTIO_INPUT_CFG_ID_DEVIDS, |
| 390 | .size = sizeof(struct virtio_input_devids), |
| 391 | .u.ids = { |
| 392 | .bustype = const_le16(BUS_VIRTUAL), |
| 393 | .vendor = const_le16(0x0627), /* same we use for usb hid devices */ |
| 394 | .product = const_le16(0x0003), |
| 395 | .version = const_le16(0x0002), |
| 396 | }, |
| 397 | },{ |
| 398 | .select = VIRTIO_INPUT_CFG_EV_BITS, |
| 399 | .subsel = EV_ABS, |
| 400 | .size = 1, |
| 401 | .u.bitmap = { |
| 402 | (1 << ABS_X) | (1 << ABS_Y), |
| 403 | }, |
| 404 | },{ |
| 405 | .select = VIRTIO_INPUT_CFG_EV_BITS, |
| 406 | .subsel = EV_REL, |
| 407 | .size = 2, |
| 408 | .u.bitmap = { |
| 409 | 0, |
| 410 | (1 << (REL_WHEEL - 8)) |
| 411 | }, |
| 412 | },{ |
| 413 | .select = VIRTIO_INPUT_CFG_ABS_INFO, |
| 414 | .subsel = ABS_X, |
| 415 | .size = sizeof(virtio_input_absinfo), |
| 416 | .u.abs.min = const_le32(INPUT_EVENT_ABS_MIN), |
| 417 | .u.abs.max = const_le32(INPUT_EVENT_ABS_MAX), |
| 418 | },{ |
| 419 | .select = VIRTIO_INPUT_CFG_ABS_INFO, |
| 420 | .subsel = ABS_Y, |
| 421 | .size = sizeof(virtio_input_absinfo), |
| 422 | .u.abs.min = const_le32(INPUT_EVENT_ABS_MIN), |
| 423 | .u.abs.max = const_le32(INPUT_EVENT_ABS_MAX), |
| 424 | }, |
| 425 | { /* end of list */ }, |
| 426 | }; |
| 427 | |
| 428 | static void virtio_tablet_init(Object *obj) |
| 429 | { |
| 430 | VirtIOInputHID *vhid = VIRTIO_INPUT_HID(obj); |
| 431 | VirtIOInput *vinput = VIRTIO_INPUT(obj); |
| 432 | |
| 433 | vhid->handler = &virtio_tablet_handler; |
| 434 | virtio_input_init_config(vinput, virtio_tablet_config); |
| 435 | virtio_input_extend_config(vinput, keymap_button, |
| 436 | ARRAY_SIZE(keymap_button), |
| 437 | VIRTIO_INPUT_CFG_EV_BITS, EV_KEY); |
| 438 | } |
| 439 | |
| 440 | static const TypeInfo virtio_tablet_info = { |
| 441 | .name = TYPE_VIRTIO_TABLET, |
| 442 | .parent = TYPE_VIRTIO_INPUT_HID, |
| 443 | .instance_size = sizeof(VirtIOInputHID), |
| 444 | .instance_init = virtio_tablet_init, |
| 445 | }; |
| 446 | |
| 447 | /* ----------------------------------------------------------------- */ |
| 448 | |
| 449 | static const QemuInputHandler virtio_multitouch_handler = { |
| 450 | .name = VIRTIO_ID_NAME_MULTITOUCH, |
| 451 | .mask = INPUT_EVENT_MASK_BTN | INPUT_EVENT_MASK_MTT, |
| 452 | .event = virtio_input_handle_event, |
| 453 | .sync = virtio_input_handle_sync, |
| 454 | }; |
| 455 | |
| 456 | static struct virtio_input_config virtio_multitouch_config[] = { |
| 457 | { |
| 458 | .select = VIRTIO_INPUT_CFG_ID_NAME, |
| 459 | .size = sizeof(VIRTIO_ID_NAME_MULTITOUCH), |
| 460 | .u.string = VIRTIO_ID_NAME_MULTITOUCH, |
| 461 | },{ |
| 462 | .select = VIRTIO_INPUT_CFG_ID_DEVIDS, |
| 463 | .size = sizeof(struct virtio_input_devids), |
| 464 | .u.ids = { |
| 465 | .bustype = const_le16(BUS_VIRTUAL), |
| 466 | .vendor = const_le16(0x0627), /* same we use for usb hid devices */ |
| 467 | .product = const_le16(0x0003), |
| 468 | .version = const_le16(0x0001), |
| 469 | }, |
| 470 | },{ |
| 471 | .select = VIRTIO_INPUT_CFG_ABS_INFO, |
| 472 | .subsel = ABS_MT_SLOT, |
| 473 | .size = sizeof(virtio_input_absinfo), |
| 474 | .u.abs.min = const_le32(INPUT_EVENT_SLOTS_MIN), |
| 475 | .u.abs.max = const_le32(INPUT_EVENT_SLOTS_MAX), |
| 476 | },{ |
| 477 | .select = VIRTIO_INPUT_CFG_ABS_INFO, |
| 478 | .subsel = ABS_MT_TRACKING_ID, |
| 479 | .size = sizeof(virtio_input_absinfo), |
| 480 | .u.abs.min = const_le32(INPUT_EVENT_SLOTS_MIN), |
| 481 | .u.abs.max = const_le32(INPUT_EVENT_SLOTS_MAX), |
| 482 | },{ |
| 483 | .select = VIRTIO_INPUT_CFG_ABS_INFO, |
| 484 | .subsel = ABS_MT_POSITION_X, |
| 485 | .size = sizeof(virtio_input_absinfo), |
| 486 | .u.abs.min = const_le32(INPUT_EVENT_ABS_MIN), |
| 487 | .u.abs.max = const_le32(INPUT_EVENT_ABS_MAX), |
| 488 | },{ |
| 489 | .select = VIRTIO_INPUT_CFG_ABS_INFO, |
| 490 | .subsel = ABS_MT_POSITION_Y, |
| 491 | .size = sizeof(virtio_input_absinfo), |
| 492 | .u.abs.min = const_le32(INPUT_EVENT_ABS_MIN), |
| 493 | .u.abs.max = const_le32(INPUT_EVENT_ABS_MAX), |
| 494 | }, |
| 495 | { /* end of list */ }, |
| 496 | }; |
| 497 | |
| 498 | static void virtio_multitouch_init(Object *obj) |
| 499 | { |
| 500 | VirtIOInputHID *vhid = VIRTIO_INPUT_HID(obj); |
| 501 | VirtIOInput *vinput = VIRTIO_INPUT(obj); |
| 502 | unsigned short abs_props[] = { |
| 503 | INPUT_PROP_DIRECT, |
| 504 | }; |
| 505 | unsigned short abs_bits[] = { |
| 506 | ABS_MT_SLOT, |
| 507 | ABS_MT_TRACKING_ID, |
| 508 | ABS_MT_POSITION_X, |
| 509 | ABS_MT_POSITION_Y, |
| 510 | }; |
| 511 | |
| 512 | vhid->handler = &virtio_multitouch_handler; |
| 513 | virtio_input_init_config(vinput, virtio_multitouch_config); |
| 514 | virtio_input_extend_config(vinput, keymap_button, |
| 515 | ARRAY_SIZE(keymap_button), |
| 516 | VIRTIO_INPUT_CFG_EV_BITS, EV_KEY); |
| 517 | virtio_input_extend_config(vinput, abs_props, |
| 518 | ARRAY_SIZE(abs_props), |
| 519 | VIRTIO_INPUT_CFG_PROP_BITS, 0); |
| 520 | virtio_input_extend_config(vinput, abs_bits, |
| 521 | ARRAY_SIZE(abs_bits), |
| 522 | VIRTIO_INPUT_CFG_EV_BITS, EV_ABS); |
| 523 | } |
| 524 | |
| 525 | static const TypeInfo virtio_multitouch_info = { |
| 526 | .name = TYPE_VIRTIO_MULTITOUCH, |
| 527 | .parent = TYPE_VIRTIO_INPUT_HID, |
| 528 | .instance_size = sizeof(VirtIOInputHID), |
| 529 | .instance_init = virtio_multitouch_init, |
| 530 | }; |
| 531 | |
| 532 | /* ----------------------------------------------------------------- */ |
| 533 | |
| 534 | static void virtio_register_types(void) |
| 535 | { |
| 536 | type_register_static(&virtio_input_hid_info); |
| 537 | type_register_static(&virtio_keyboard_info); |
| 538 | type_register_static(&virtio_mouse_info); |
| 539 | type_register_static(&virtio_tablet_info); |
| 540 | type_register_static(&virtio_multitouch_info); |
| 541 | } |
| 542 | |
| 543 | type_init(virtio_register_types) |