1
2
3
4
5
6
7#include "qemu/osdep.h"
8#include "qemu/iov.h"
9#include "qemu/module.h"
10
11#include "hw/qdev.h"
12#include "hw/virtio/virtio.h"
13#include "hw/virtio/virtio-input.h"
14
15#undef CONFIG_CURSES
16#include "ui/console.h"
17
18#include "standard-headers/linux/input.h"
19
20#define VIRTIO_ID_NAME_KEYBOARD "QEMU Virtio Keyboard"
21#define VIRTIO_ID_NAME_MOUSE "QEMU Virtio Mouse"
22#define VIRTIO_ID_NAME_TABLET "QEMU Virtio Tablet"
23
24
25
26static const unsigned short keymap_button[INPUT_BUTTON__MAX] = {
27 [INPUT_BUTTON_LEFT] = BTN_LEFT,
28 [INPUT_BUTTON_RIGHT] = BTN_RIGHT,
29 [INPUT_BUTTON_MIDDLE] = BTN_MIDDLE,
30 [INPUT_BUTTON_WHEEL_UP] = BTN_GEAR_UP,
31 [INPUT_BUTTON_WHEEL_DOWN] = BTN_GEAR_DOWN,
32 [INPUT_BUTTON_SIDE] = BTN_SIDE,
33 [INPUT_BUTTON_EXTRA] = BTN_EXTRA,
34};
35
36static const unsigned short axismap_rel[INPUT_AXIS__MAX] = {
37 [INPUT_AXIS_X] = REL_X,
38 [INPUT_AXIS_Y] = REL_Y,
39};
40
41static const unsigned short axismap_abs[INPUT_AXIS__MAX] = {
42 [INPUT_AXIS_X] = ABS_X,
43 [INPUT_AXIS_Y] = ABS_Y,
44};
45
46
47
48static void virtio_input_key_config(VirtIOInput *vinput,
49 const unsigned short *keymap,
50 size_t mapsize)
51{
52 virtio_input_config keys;
53 int i, bit, byte, bmax = 0;
54
55 memset(&keys, 0, sizeof(keys));
56 for (i = 0; i < mapsize; i++) {
57 bit = keymap[i];
58 if (!bit) {
59 continue;
60 }
61 byte = bit / 8;
62 bit = bit % 8;
63 keys.u.bitmap[byte] |= (1 << bit);
64 if (bmax < byte+1) {
65 bmax = byte+1;
66 }
67 }
68 keys.select = VIRTIO_INPUT_CFG_EV_BITS;
69 keys.subsel = EV_KEY;
70 keys.size = bmax;
71 virtio_input_add_config(vinput, &keys);
72}
73
74static void virtio_input_handle_event(DeviceState *dev, QemuConsole *src,
75 InputEvent *evt)
76{
77 VirtIOInputHID *vhid = VIRTIO_INPUT_HID(dev);
78 VirtIOInput *vinput = VIRTIO_INPUT(dev);
79 virtio_input_event event;
80 int qcode;
81 InputKeyEvent *key;
82 InputMoveEvent *move;
83 InputBtnEvent *btn;
84
85 switch (evt->type) {
86 case INPUT_EVENT_KIND_KEY:
87 key = evt->u.key.data;
88 qcode = qemu_input_key_value_to_qcode(key->key);
89 if (qcode < qemu_input_map_qcode_to_linux_len &&
90 qemu_input_map_qcode_to_linux[qcode]) {
91 event.type = cpu_to_le16(EV_KEY);
92 event.code = cpu_to_le16(qemu_input_map_qcode_to_linux[qcode]);
93 event.value = cpu_to_le32(key->down ? 1 : 0);
94 virtio_input_send(vinput, &event);
95 } else {
96 if (key->down) {
97 fprintf(stderr, "%s: unmapped key: %d [%s]\n", __func__,
98 qcode, QKeyCode_str(qcode));
99 }
100 }
101 break;
102 case INPUT_EVENT_KIND_BTN:
103 btn = evt->u.btn.data;
104 if (vhid->wheel_axis &&
105 (btn->button == INPUT_BUTTON_WHEEL_UP ||
106 btn->button == INPUT_BUTTON_WHEEL_DOWN) &&
107 btn->down) {
108 event.type = cpu_to_le16(EV_REL);
109 event.code = cpu_to_le16(REL_WHEEL);
110 event.value = cpu_to_le32(btn->button == INPUT_BUTTON_WHEEL_UP
111 ? 1 : -1);
112 virtio_input_send(vinput, &event);
113 } else if (keymap_button[btn->button]) {
114 event.type = cpu_to_le16(EV_KEY);
115 event.code = cpu_to_le16(keymap_button[btn->button]);
116 event.value = cpu_to_le32(btn->down ? 1 : 0);
117 virtio_input_send(vinput, &event);
118 } else {
119 if (btn->down) {
120 fprintf(stderr, "%s: unmapped button: %d [%s]\n", __func__,
121 btn->button,
122 InputButton_str(btn->button));
123 }
124 }
125 break;
126 case INPUT_EVENT_KIND_REL:
127 move = evt->u.rel.data;
128 event.type = cpu_to_le16(EV_REL);
129 event.code = cpu_to_le16(axismap_rel[move->axis]);
130 event.value = cpu_to_le32(move->value);
131 virtio_input_send(vinput, &event);
132 break;
133 case INPUT_EVENT_KIND_ABS:
134 move = evt->u.abs.data;
135 event.type = cpu_to_le16(EV_ABS);
136 event.code = cpu_to_le16(axismap_abs[move->axis]);
137 event.value = cpu_to_le32(move->value);
138 virtio_input_send(vinput, &event);
139 break;
140 default:
141
142 break;
143 }
144}
145
146static void virtio_input_handle_sync(DeviceState *dev)
147{
148 VirtIOInput *vinput = VIRTIO_INPUT(dev);
149 virtio_input_event event = {
150 .type = cpu_to_le16(EV_SYN),
151 .code = cpu_to_le16(SYN_REPORT),
152 .value = 0,
153 };
154
155 virtio_input_send(vinput, &event);
156}
157
158static void virtio_input_hid_realize(DeviceState *dev, Error **errp)
159{
160 VirtIOInputHID *vhid = VIRTIO_INPUT_HID(dev);
161
162 vhid->hs = qemu_input_handler_register(dev, vhid->handler);
163 if (vhid->display && vhid->hs) {
164 qemu_input_handler_bind(vhid->hs, vhid->display, vhid->head, NULL);
165 }
166}
167
168static void virtio_input_hid_unrealize(DeviceState *dev, Error **errp)
169{
170 VirtIOInputHID *vhid = VIRTIO_INPUT_HID(dev);
171 qemu_input_handler_unregister(vhid->hs);
172}
173
174static void virtio_input_hid_change_active(VirtIOInput *vinput)
175{
176 VirtIOInputHID *vhid = VIRTIO_INPUT_HID(vinput);
177
178 if (vinput->active) {
179 qemu_input_handler_activate(vhid->hs);
180 } else {
181 qemu_input_handler_deactivate(vhid->hs);
182 }
183}
184
185static void virtio_input_hid_handle_status(VirtIOInput *vinput,
186 virtio_input_event *event)
187{
188 VirtIOInputHID *vhid = VIRTIO_INPUT_HID(vinput);
189 int ledbit = 0;
190
191 switch (le16_to_cpu(event->type)) {
192 case EV_LED:
193 if (event->code == LED_NUML) {
194 ledbit = QEMU_NUM_LOCK_LED;
195 } else if (event->code == LED_CAPSL) {
196 ledbit = QEMU_CAPS_LOCK_LED;
197 } else if (event->code == LED_SCROLLL) {
198 ledbit = QEMU_SCROLL_LOCK_LED;
199 }
200 if (event->value) {
201 vhid->ledstate |= ledbit;
202 } else {
203 vhid->ledstate &= ~ledbit;
204 }
205 kbd_put_ledstate(vhid->ledstate);
206 break;
207 default:
208 fprintf(stderr, "%s: unknown type %d\n", __func__,
209 le16_to_cpu(event->type));
210 break;
211 }
212}
213
214static Property virtio_input_hid_properties[] = {
215 DEFINE_PROP_STRING("display", VirtIOInputHID, display),
216 DEFINE_PROP_UINT32("head", VirtIOInputHID, head, 0),
217 DEFINE_PROP_END_OF_LIST(),
218};
219
220static void virtio_input_hid_class_init(ObjectClass *klass, void *data)
221{
222 DeviceClass *dc = DEVICE_CLASS(klass);
223 VirtIOInputClass *vic = VIRTIO_INPUT_CLASS(klass);
224
225 dc->props = virtio_input_hid_properties;
226 vic->realize = virtio_input_hid_realize;
227 vic->unrealize = virtio_input_hid_unrealize;
228 vic->change_active = virtio_input_hid_change_active;
229 vic->handle_status = virtio_input_hid_handle_status;
230}
231
232static const TypeInfo virtio_input_hid_info = {
233 .name = TYPE_VIRTIO_INPUT_HID,
234 .parent = TYPE_VIRTIO_INPUT,
235 .instance_size = sizeof(VirtIOInputHID),
236 .class_init = virtio_input_hid_class_init,
237 .abstract = true,
238};
239
240
241
242static QemuInputHandler virtio_keyboard_handler = {
243 .name = VIRTIO_ID_NAME_KEYBOARD,
244 .mask = INPUT_EVENT_MASK_KEY,
245 .event = virtio_input_handle_event,
246 .sync = virtio_input_handle_sync,
247};
248
249static struct virtio_input_config virtio_keyboard_config[] = {
250 {
251 .select = VIRTIO_INPUT_CFG_ID_NAME,
252 .size = sizeof(VIRTIO_ID_NAME_KEYBOARD),
253 .u.string = VIRTIO_ID_NAME_KEYBOARD,
254 },{
255 .select = VIRTIO_INPUT_CFG_ID_DEVIDS,
256 .size = sizeof(struct virtio_input_devids),
257 .u.ids = {
258 .bustype = const_le16(BUS_VIRTUAL),
259 .vendor = const_le16(0x0627),
260 .product = const_le16(0x0001),
261 .version = const_le16(0x0001),
262 },
263 },{
264 .select = VIRTIO_INPUT_CFG_EV_BITS,
265 .subsel = EV_REP,
266 .size = 1,
267 },{
268 .select = VIRTIO_INPUT_CFG_EV_BITS,
269 .subsel = EV_LED,
270 .size = 1,
271 .u.bitmap = {
272 (1 << LED_NUML) | (1 << LED_CAPSL) | (1 << LED_SCROLLL),
273 },
274 },
275 { },
276};
277
278static void virtio_keyboard_init(Object *obj)
279{
280 VirtIOInputHID *vhid = VIRTIO_INPUT_HID(obj);
281 VirtIOInput *vinput = VIRTIO_INPUT(obj);
282
283 vhid->handler = &virtio_keyboard_handler;
284 virtio_input_init_config(vinput, virtio_keyboard_config);
285 virtio_input_key_config(vinput, qemu_input_map_qcode_to_linux,
286 qemu_input_map_qcode_to_linux_len);
287}
288
289static const TypeInfo virtio_keyboard_info = {
290 .name = TYPE_VIRTIO_KEYBOARD,
291 .parent = TYPE_VIRTIO_INPUT_HID,
292 .instance_size = sizeof(VirtIOInputHID),
293 .instance_init = virtio_keyboard_init,
294};
295
296
297
298static QemuInputHandler virtio_mouse_handler = {
299 .name = VIRTIO_ID_NAME_MOUSE,
300 .mask = INPUT_EVENT_MASK_BTN | INPUT_EVENT_MASK_REL,
301 .event = virtio_input_handle_event,
302 .sync = virtio_input_handle_sync,
303};
304
305static struct virtio_input_config virtio_mouse_config_v1[] = {
306 {
307 .select = VIRTIO_INPUT_CFG_ID_NAME,
308 .size = sizeof(VIRTIO_ID_NAME_MOUSE),
309 .u.string = VIRTIO_ID_NAME_MOUSE,
310 },{
311 .select = VIRTIO_INPUT_CFG_ID_DEVIDS,
312 .size = sizeof(struct virtio_input_devids),
313 .u.ids = {
314 .bustype = const_le16(BUS_VIRTUAL),
315 .vendor = const_le16(0x0627),
316 .product = const_le16(0x0002),
317 .version = const_le16(0x0001),
318 },
319 },{
320 .select = VIRTIO_INPUT_CFG_EV_BITS,
321 .subsel = EV_REL,
322 .size = 1,
323 .u.bitmap = {
324 (1 << REL_X) | (1 << REL_Y),
325 },
326 },
327 { },
328};
329
330static struct virtio_input_config virtio_mouse_config_v2[] = {
331 {
332 .select = VIRTIO_INPUT_CFG_ID_NAME,
333 .size = sizeof(VIRTIO_ID_NAME_MOUSE),
334 .u.string = VIRTIO_ID_NAME_MOUSE,
335 },{
336 .select = VIRTIO_INPUT_CFG_ID_DEVIDS,
337 .size = sizeof(struct virtio_input_devids),
338 .u.ids = {
339 .bustype = const_le16(BUS_VIRTUAL),
340 .vendor = const_le16(0x0627),
341 .product = const_le16(0x0002),
342 .version = const_le16(0x0002),
343 },
344 },{
345 .select = VIRTIO_INPUT_CFG_EV_BITS,
346 .subsel = EV_REL,
347 .size = 2,
348 .u.bitmap = {
349 (1 << REL_X) | (1 << REL_Y),
350 (1 << (REL_WHEEL - 8))
351 },
352 },
353 { },
354};
355
356static Property virtio_mouse_properties[] = {
357 DEFINE_PROP_BOOL("wheel-axis", VirtIOInputHID, wheel_axis, true),
358 DEFINE_PROP_END_OF_LIST(),
359};
360
361static void virtio_mouse_class_init(ObjectClass *klass, void *data)
362{
363 DeviceClass *dc = DEVICE_CLASS(klass);
364
365 dc->props = virtio_mouse_properties;
366}
367
368static void virtio_mouse_init(Object *obj)
369{
370 VirtIOInputHID *vhid = VIRTIO_INPUT_HID(obj);
371 VirtIOInput *vinput = VIRTIO_INPUT(obj);
372
373 vhid->handler = &virtio_mouse_handler;
374 virtio_input_init_config(vinput, vhid->wheel_axis
375 ? virtio_mouse_config_v2
376 : virtio_mouse_config_v1);
377 virtio_input_key_config(vinput, keymap_button,
378 ARRAY_SIZE(keymap_button));
379}
380
381static const TypeInfo virtio_mouse_info = {
382 .name = TYPE_VIRTIO_MOUSE,
383 .parent = TYPE_VIRTIO_INPUT_HID,
384 .instance_size = sizeof(VirtIOInputHID),
385 .instance_init = virtio_mouse_init,
386 .class_init = virtio_mouse_class_init,
387};
388
389
390
391static QemuInputHandler virtio_tablet_handler = {
392 .name = VIRTIO_ID_NAME_TABLET,
393 .mask = INPUT_EVENT_MASK_BTN | INPUT_EVENT_MASK_ABS,
394 .event = virtio_input_handle_event,
395 .sync = virtio_input_handle_sync,
396};
397
398static struct virtio_input_config virtio_tablet_config_v1[] = {
399 {
400 .select = VIRTIO_INPUT_CFG_ID_NAME,
401 .size = sizeof(VIRTIO_ID_NAME_TABLET),
402 .u.string = VIRTIO_ID_NAME_TABLET,
403 },{
404 .select = VIRTIO_INPUT_CFG_ID_DEVIDS,
405 .size = sizeof(struct virtio_input_devids),
406 .u.ids = {
407 .bustype = const_le16(BUS_VIRTUAL),
408 .vendor = const_le16(0x0627),
409 .product = const_le16(0x0003),
410 .version = const_le16(0x0001),
411 },
412 },{
413 .select = VIRTIO_INPUT_CFG_EV_BITS,
414 .subsel = EV_ABS,
415 .size = 1,
416 .u.bitmap = {
417 (1 << ABS_X) | (1 << ABS_Y),
418 },
419 },{
420 .select = VIRTIO_INPUT_CFG_ABS_INFO,
421 .subsel = ABS_X,
422 .size = sizeof(virtio_input_absinfo),
423 .u.abs.min = const_le32(INPUT_EVENT_ABS_MIN),
424 .u.abs.max = const_le32(INPUT_EVENT_ABS_MAX),
425 },{
426 .select = VIRTIO_INPUT_CFG_ABS_INFO,
427 .subsel = ABS_Y,
428 .size = sizeof(virtio_input_absinfo),
429 .u.abs.min = const_le32(INPUT_EVENT_ABS_MIN),
430 .u.abs.max = const_le32(INPUT_EVENT_ABS_MAX),
431 },
432 { },
433};
434
435static struct virtio_input_config virtio_tablet_config_v2[] = {
436 {
437 .select = VIRTIO_INPUT_CFG_ID_NAME,
438 .size = sizeof(VIRTIO_ID_NAME_TABLET),
439 .u.string = VIRTIO_ID_NAME_TABLET,
440 },{
441 .select = VIRTIO_INPUT_CFG_ID_DEVIDS,
442 .size = sizeof(struct virtio_input_devids),
443 .u.ids = {
444 .bustype = const_le16(BUS_VIRTUAL),
445 .vendor = const_le16(0x0627),
446 .product = const_le16(0x0003),
447 .version = const_le16(0x0002),
448 },
449 },{
450 .select = VIRTIO_INPUT_CFG_EV_BITS,
451 .subsel = EV_ABS,
452 .size = 1,
453 .u.bitmap = {
454 (1 << ABS_X) | (1 << ABS_Y),
455 },
456 },{
457 .select = VIRTIO_INPUT_CFG_EV_BITS,
458 .subsel = EV_REL,
459 .size = 2,
460 .u.bitmap = {
461 0,
462 (1 << (REL_WHEEL - 8))
463 },
464 },{
465 .select = VIRTIO_INPUT_CFG_ABS_INFO,
466 .subsel = ABS_X,
467 .size = sizeof(virtio_input_absinfo),
468 .u.abs.min = const_le32(INPUT_EVENT_ABS_MIN),
469 .u.abs.max = const_le32(INPUT_EVENT_ABS_MAX),
470 },{
471 .select = VIRTIO_INPUT_CFG_ABS_INFO,
472 .subsel = ABS_Y,
473 .size = sizeof(virtio_input_absinfo),
474 .u.abs.min = const_le32(INPUT_EVENT_ABS_MIN),
475 .u.abs.max = const_le32(INPUT_EVENT_ABS_MAX),
476 },
477 { },
478};
479
480static Property virtio_tablet_properties[] = {
481 DEFINE_PROP_BOOL("wheel-axis", VirtIOInputHID, wheel_axis, true),
482 DEFINE_PROP_END_OF_LIST(),
483};
484
485static void virtio_tablet_class_init(ObjectClass *klass, void *data)
486{
487 DeviceClass *dc = DEVICE_CLASS(klass);
488
489 dc->props = virtio_tablet_properties;
490}
491
492static void virtio_tablet_init(Object *obj)
493{
494 VirtIOInputHID *vhid = VIRTIO_INPUT_HID(obj);
495 VirtIOInput *vinput = VIRTIO_INPUT(obj);
496
497 vhid->handler = &virtio_tablet_handler;
498 virtio_input_init_config(vinput, vhid->wheel_axis
499 ? virtio_tablet_config_v2
500 : virtio_tablet_config_v1);
501 virtio_input_key_config(vinput, keymap_button,
502 ARRAY_SIZE(keymap_button));
503}
504
505static const TypeInfo virtio_tablet_info = {
506 .name = TYPE_VIRTIO_TABLET,
507 .parent = TYPE_VIRTIO_INPUT_HID,
508 .instance_size = sizeof(VirtIOInputHID),
509 .instance_init = virtio_tablet_init,
510 .class_init = virtio_tablet_class_init,
511};
512
513
514
515static void virtio_register_types(void)
516{
517 type_register_static(&virtio_input_hid_info);
518 type_register_static(&virtio_keyboard_info);
519 type_register_static(&virtio_mouse_info);
520 type_register_static(&virtio_tablet_info);
521}
522
523type_init(virtio_register_types)
524
