1 | /* |
2 | * QEMU 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 | |
26 | #include "qemu/osdep.h" |
27 | #include "ui/console.h" |
28 | #include "qemu/timer.h" |
29 | #include "hw/input/hid.h" |
30 | #include "migration/vmstate.h" |
31 | #include "trace.h" |
32 | |
33 | #define HID_USAGE_ERROR_ROLLOVER 0x01 |
34 | #define HID_USAGE_POSTFAIL 0x02 |
35 | #define HID_USAGE_ERROR_UNDEFINED 0x03 |
36 | |
37 | /* Indices are QEMU keycodes, values are from HID Usage Table. Indices |
38 | * above 0x80 are for keys that come after 0xe0 or 0xe1+0x1d or 0xe1+0x9d. */ |
39 | static const uint8_t hid_usage_keys[0x100] = { |
40 | 0x00, 0x29, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, |
41 | 0x24, 0x25, 0x26, 0x27, 0x2d, 0x2e, 0x2a, 0x2b, |
42 | 0x14, 0x1a, 0x08, 0x15, 0x17, 0x1c, 0x18, 0x0c, |
43 | 0x12, 0x13, 0x2f, 0x30, 0x28, 0xe0, 0x04, 0x16, |
44 | 0x07, 0x09, 0x0a, 0x0b, 0x0d, 0x0e, 0x0f, 0x33, |
45 | 0x34, 0x35, 0xe1, 0x31, 0x1d, 0x1b, 0x06, 0x19, |
46 | 0x05, 0x11, 0x10, 0x36, 0x37, 0x38, 0xe5, 0x55, |
47 | 0xe2, 0x2c, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, |
48 | 0x3f, 0x40, 0x41, 0x42, 0x43, 0x53, 0x47, 0x5f, |
49 | 0x60, 0x61, 0x56, 0x5c, 0x5d, 0x5e, 0x57, 0x59, |
50 | 0x5a, 0x5b, 0x62, 0x63, 0x46, 0x00, 0x64, 0x44, |
51 | 0x45, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, |
52 | 0xe8, 0xe9, 0x71, 0x72, 0x73, 0x00, 0x00, 0x00, |
53 | 0x00, 0x00, 0x00, 0x85, 0x00, 0x00, 0x00, 0x00, |
54 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
55 | 0x00, 0x00, 0x00, 0x00, 0x00, 0xe3, 0xe7, 0x65, |
56 | |
57 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
58 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
59 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
60 | 0x00, 0x00, 0x00, 0x00, 0x58, 0xe4, 0x00, 0x00, |
61 | 0x7f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
62 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x81, 0x00, |
63 | 0x80, 0x00, 0x00, 0x00, 0x00, 0x54, 0x00, 0x46, |
64 | 0xe6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
65 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x48, 0x48, 0x4a, |
66 | 0x52, 0x4b, 0x00, 0x50, 0x00, 0x4f, 0x00, 0x4d, |
67 | 0x51, 0x4e, 0x49, 0x4c, 0x00, 0x00, 0x00, 0x00, |
68 | 0x00, 0x00, 0x00, 0xe3, 0xe7, 0x65, 0x66, 0x00, |
69 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
70 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
71 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
72 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
73 | }; |
74 | |
75 | bool hid_has_events(HIDState *hs) |
76 | { |
77 | return hs->n > 0 || hs->idle_pending; |
78 | } |
79 | |
80 | static void hid_idle_timer(void *opaque) |
81 | { |
82 | HIDState *hs = opaque; |
83 | |
84 | hs->idle_pending = true; |
85 | hs->event(hs); |
86 | } |
87 | |
88 | static void hid_del_idle_timer(HIDState *hs) |
89 | { |
90 | if (hs->idle_timer) { |
91 | timer_del(hs->idle_timer); |
92 | timer_free(hs->idle_timer); |
93 | hs->idle_timer = NULL; |
94 | } |
95 | } |
96 | |
97 | void hid_set_next_idle(HIDState *hs) |
98 | { |
99 | if (hs->idle) { |
100 | uint64_t expire_time = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + |
101 | NANOSECONDS_PER_SECOND * hs->idle * 4 / 1000; |
102 | if (!hs->idle_timer) { |
103 | hs->idle_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, hid_idle_timer, hs); |
104 | } |
105 | timer_mod_ns(hs->idle_timer, expire_time); |
106 | } else { |
107 | hid_del_idle_timer(hs); |
108 | } |
109 | } |
110 | |
111 | static void hid_pointer_event(DeviceState *dev, QemuConsole *src, |
112 | InputEvent *evt) |
113 | { |
114 | static const int bmap[INPUT_BUTTON__MAX] = { |
115 | [INPUT_BUTTON_LEFT] = 0x01, |
116 | [INPUT_BUTTON_RIGHT] = 0x02, |
117 | [INPUT_BUTTON_MIDDLE] = 0x04, |
118 | }; |
119 | HIDState *hs = (HIDState *)dev; |
120 | HIDPointerEvent *e; |
121 | InputMoveEvent *move; |
122 | InputBtnEvent *btn; |
123 | |
124 | assert(hs->n < QUEUE_LENGTH); |
125 | e = &hs->ptr.queue[(hs->head + hs->n) & QUEUE_MASK]; |
126 | |
127 | switch (evt->type) { |
128 | case INPUT_EVENT_KIND_REL: |
129 | move = evt->u.rel.data; |
130 | if (move->axis == INPUT_AXIS_X) { |
131 | e->xdx += move->value; |
132 | } else if (move->axis == INPUT_AXIS_Y) { |
133 | e->ydy += move->value; |
134 | } |
135 | break; |
136 | |
137 | case INPUT_EVENT_KIND_ABS: |
138 | move = evt->u.abs.data; |
139 | if (move->axis == INPUT_AXIS_X) { |
140 | e->xdx = move->value; |
141 | } else if (move->axis == INPUT_AXIS_Y) { |
142 | e->ydy = move->value; |
143 | } |
144 | break; |
145 | |
146 | case INPUT_EVENT_KIND_BTN: |
147 | btn = evt->u.btn.data; |
148 | if (btn->down) { |
149 | e->buttons_state |= bmap[btn->button]; |
150 | if (btn->button == INPUT_BUTTON_WHEEL_UP) { |
151 | e->dz--; |
152 | } else if (btn->button == INPUT_BUTTON_WHEEL_DOWN) { |
153 | e->dz++; |
154 | } |
155 | } else { |
156 | e->buttons_state &= ~bmap[btn->button]; |
157 | } |
158 | break; |
159 | |
160 | default: |
161 | /* keep gcc happy */ |
162 | break; |
163 | } |
164 | |
165 | } |
166 | |
167 | static void hid_pointer_sync(DeviceState *dev) |
168 | { |
169 | HIDState *hs = (HIDState *)dev; |
170 | HIDPointerEvent *prev, *curr, *next; |
171 | bool event_compression = false; |
172 | |
173 | if (hs->n == QUEUE_LENGTH-1) { |
174 | /* |
175 | * Queue full. We are losing information, but we at least |
176 | * keep track of most recent button state. |
177 | */ |
178 | return; |
179 | } |
180 | |
181 | prev = &hs->ptr.queue[(hs->head + hs->n - 1) & QUEUE_MASK]; |
182 | curr = &hs->ptr.queue[(hs->head + hs->n) & QUEUE_MASK]; |
183 | next = &hs->ptr.queue[(hs->head + hs->n + 1) & QUEUE_MASK]; |
184 | |
185 | if (hs->n > 0) { |
186 | /* |
187 | * No button state change between previous and current event |
188 | * (and previous wasn't seen by the guest yet), so there is |
189 | * motion information only and we can combine the two event |
190 | * into one. |
191 | */ |
192 | if (curr->buttons_state == prev->buttons_state) { |
193 | event_compression = true; |
194 | } |
195 | } |
196 | |
197 | if (event_compression) { |
198 | /* add current motion to previous, clear current */ |
199 | if (hs->kind == HID_MOUSE) { |
200 | prev->xdx += curr->xdx; |
201 | curr->xdx = 0; |
202 | prev->ydy += curr->ydy; |
203 | curr->ydy = 0; |
204 | } else { |
205 | prev->xdx = curr->xdx; |
206 | prev->ydy = curr->ydy; |
207 | } |
208 | prev->dz += curr->dz; |
209 | curr->dz = 0; |
210 | } else { |
211 | /* prepate next (clear rel, copy abs + btns) */ |
212 | if (hs->kind == HID_MOUSE) { |
213 | next->xdx = 0; |
214 | next->ydy = 0; |
215 | } else { |
216 | next->xdx = curr->xdx; |
217 | next->ydy = curr->ydy; |
218 | } |
219 | next->dz = 0; |
220 | next->buttons_state = curr->buttons_state; |
221 | /* make current guest visible, notify guest */ |
222 | hs->n++; |
223 | hs->event(hs); |
224 | } |
225 | } |
226 | |
227 | static void hid_keyboard_event(DeviceState *dev, QemuConsole *src, |
228 | InputEvent *evt) |
229 | { |
230 | HIDState *hs = (HIDState *)dev; |
231 | int scancodes[3], i, count; |
232 | int slot; |
233 | InputKeyEvent *key = evt->u.key.data; |
234 | |
235 | count = qemu_input_key_value_to_scancode(key->key, |
236 | key->down, |
237 | scancodes); |
238 | if (hs->n + count > QUEUE_LENGTH) { |
239 | trace_hid_kbd_queue_full(); |
240 | return; |
241 | } |
242 | for (i = 0; i < count; i++) { |
243 | slot = (hs->head + hs->n) & QUEUE_MASK; hs->n++; |
244 | hs->kbd.keycodes[slot] = scancodes[i]; |
245 | } |
246 | hs->event(hs); |
247 | } |
248 | |
249 | static void hid_keyboard_process_keycode(HIDState *hs) |
250 | { |
251 | uint8_t hid_code, index, key; |
252 | int i, keycode, slot; |
253 | |
254 | if (hs->n == 0) { |
255 | return; |
256 | } |
257 | slot = hs->head & QUEUE_MASK; QUEUE_INCR(hs->head); hs->n--; |
258 | keycode = hs->kbd.keycodes[slot]; |
259 | |
260 | if (!hs->n) { |
261 | trace_hid_kbd_queue_empty(); |
262 | } |
263 | |
264 | key = keycode & 0x7f; |
265 | index = key | ((hs->kbd.modifiers & (1 << 8)) >> 1); |
266 | hid_code = hid_usage_keys[index]; |
267 | hs->kbd.modifiers &= ~(1 << 8); |
268 | |
269 | switch (hid_code) { |
270 | case 0x00: |
271 | return; |
272 | |
273 | case 0xe0: |
274 | assert(key == 0x1d); |
275 | if (hs->kbd.modifiers & (1 << 9)) { |
276 | /* The hid_codes for the 0xe1/0x1d scancode sequence are 0xe9/0xe0. |
277 | * Here we're processing the second hid_code. By dropping bit 9 |
278 | * and setting bit 8, the scancode after 0x1d will access the |
279 | * second half of the table. |
280 | */ |
281 | hs->kbd.modifiers ^= (1 << 8) | (1 << 9); |
282 | return; |
283 | } |
284 | /* fall through to process Ctrl_L */ |
285 | case 0xe1 ... 0xe7: |
286 | /* Ctrl_L/Ctrl_R, Shift_L/Shift_R, Alt_L/Alt_R, Win_L/Win_R. |
287 | * Handle releases here, or fall through to process presses. |
288 | */ |
289 | if (keycode & (1 << 7)) { |
290 | hs->kbd.modifiers &= ~(1 << (hid_code & 0x0f)); |
291 | return; |
292 | } |
293 | /* fall through */ |
294 | case 0xe8 ... 0xe9: |
295 | /* USB modifiers are just 1 byte long. Bits 8 and 9 of |
296 | * hs->kbd.modifiers implement a state machine that detects the |
297 | * 0xe0 and 0xe1/0x1d sequences. These bits do not follow the |
298 | * usual rules where bit 7 marks released keys; they are cleared |
299 | * elsewhere in the function as the state machine dictates. |
300 | */ |
301 | hs->kbd.modifiers |= 1 << (hid_code & 0x0f); |
302 | return; |
303 | |
304 | case 0xea ... 0xef: |
305 | abort(); |
306 | |
307 | default: |
308 | break; |
309 | } |
310 | |
311 | if (keycode & (1 << 7)) { |
312 | for (i = hs->kbd.keys - 1; i >= 0; i--) { |
313 | if (hs->kbd.key[i] == hid_code) { |
314 | hs->kbd.key[i] = hs->kbd.key[-- hs->kbd.keys]; |
315 | hs->kbd.key[hs->kbd.keys] = 0x00; |
316 | break; |
317 | } |
318 | } |
319 | if (i < 0) { |
320 | return; |
321 | } |
322 | } else { |
323 | for (i = hs->kbd.keys - 1; i >= 0; i--) { |
324 | if (hs->kbd.key[i] == hid_code) { |
325 | break; |
326 | } |
327 | } |
328 | if (i < 0) { |
329 | if (hs->kbd.keys < sizeof(hs->kbd.key)) { |
330 | hs->kbd.key[hs->kbd.keys++] = hid_code; |
331 | } |
332 | } else { |
333 | return; |
334 | } |
335 | } |
336 | } |
337 | |
338 | static inline int int_clamp(int val, int vmin, int vmax) |
339 | { |
340 | if (val < vmin) { |
341 | return vmin; |
342 | } else if (val > vmax) { |
343 | return vmax; |
344 | } else { |
345 | return val; |
346 | } |
347 | } |
348 | |
349 | void hid_pointer_activate(HIDState *hs) |
350 | { |
351 | if (!hs->ptr.mouse_grabbed) { |
352 | qemu_input_handler_activate(hs->s); |
353 | hs->ptr.mouse_grabbed = 1; |
354 | } |
355 | } |
356 | |
357 | int hid_pointer_poll(HIDState *hs, uint8_t *buf, int len) |
358 | { |
359 | int dx, dy, dz, l; |
360 | int index; |
361 | HIDPointerEvent *e; |
362 | |
363 | hs->idle_pending = false; |
364 | |
365 | hid_pointer_activate(hs); |
366 | |
367 | /* When the buffer is empty, return the last event. Relative |
368 | movements will all be zero. */ |
369 | index = (hs->n ? hs->head : hs->head - 1); |
370 | e = &hs->ptr.queue[index & QUEUE_MASK]; |
371 | |
372 | if (hs->kind == HID_MOUSE) { |
373 | dx = int_clamp(e->xdx, -127, 127); |
374 | dy = int_clamp(e->ydy, -127, 127); |
375 | e->xdx -= dx; |
376 | e->ydy -= dy; |
377 | } else { |
378 | dx = e->xdx; |
379 | dy = e->ydy; |
380 | } |
381 | dz = int_clamp(e->dz, -127, 127); |
382 | e->dz -= dz; |
383 | |
384 | if (hs->n && |
385 | !e->dz && |
386 | (hs->kind == HID_TABLET || (!e->xdx && !e->ydy))) { |
387 | /* that deals with this event */ |
388 | QUEUE_INCR(hs->head); |
389 | hs->n--; |
390 | } |
391 | |
392 | /* Appears we have to invert the wheel direction */ |
393 | dz = 0 - dz; |
394 | l = 0; |
395 | switch (hs->kind) { |
396 | case HID_MOUSE: |
397 | if (len > l) { |
398 | buf[l++] = e->buttons_state; |
399 | } |
400 | if (len > l) { |
401 | buf[l++] = dx; |
402 | } |
403 | if (len > l) { |
404 | buf[l++] = dy; |
405 | } |
406 | if (len > l) { |
407 | buf[l++] = dz; |
408 | } |
409 | break; |
410 | |
411 | case HID_TABLET: |
412 | if (len > l) { |
413 | buf[l++] = e->buttons_state; |
414 | } |
415 | if (len > l) { |
416 | buf[l++] = dx & 0xff; |
417 | } |
418 | if (len > l) { |
419 | buf[l++] = dx >> 8; |
420 | } |
421 | if (len > l) { |
422 | buf[l++] = dy & 0xff; |
423 | } |
424 | if (len > l) { |
425 | buf[l++] = dy >> 8; |
426 | } |
427 | if (len > l) { |
428 | buf[l++] = dz; |
429 | } |
430 | break; |
431 | |
432 | default: |
433 | abort(); |
434 | } |
435 | |
436 | return l; |
437 | } |
438 | |
439 | int hid_keyboard_poll(HIDState *hs, uint8_t *buf, int len) |
440 | { |
441 | hs->idle_pending = false; |
442 | |
443 | if (len < 2) { |
444 | return 0; |
445 | } |
446 | |
447 | hid_keyboard_process_keycode(hs); |
448 | |
449 | buf[0] = hs->kbd.modifiers & 0xff; |
450 | buf[1] = 0; |
451 | if (hs->kbd.keys > 6) { |
452 | memset(buf + 2, HID_USAGE_ERROR_ROLLOVER, MIN(8, len) - 2); |
453 | } else { |
454 | memcpy(buf + 2, hs->kbd.key, MIN(8, len) - 2); |
455 | } |
456 | |
457 | return MIN(8, len); |
458 | } |
459 | |
460 | int hid_keyboard_write(HIDState *hs, uint8_t *buf, int len) |
461 | { |
462 | if (len > 0) { |
463 | int ledstate = 0; |
464 | /* 0x01: Num Lock LED |
465 | * 0x02: Caps Lock LED |
466 | * 0x04: Scroll Lock LED |
467 | * 0x08: Compose LED |
468 | * 0x10: Kana LED */ |
469 | hs->kbd.leds = buf[0]; |
470 | if (hs->kbd.leds & 0x04) { |
471 | ledstate |= QEMU_SCROLL_LOCK_LED; |
472 | } |
473 | if (hs->kbd.leds & 0x01) { |
474 | ledstate |= QEMU_NUM_LOCK_LED; |
475 | } |
476 | if (hs->kbd.leds & 0x02) { |
477 | ledstate |= QEMU_CAPS_LOCK_LED; |
478 | } |
479 | kbd_put_ledstate(ledstate); |
480 | } |
481 | return 0; |
482 | } |
483 | |
484 | void hid_reset(HIDState *hs) |
485 | { |
486 | switch (hs->kind) { |
487 | case HID_KEYBOARD: |
488 | memset(hs->kbd.keycodes, 0, sizeof(hs->kbd.keycodes)); |
489 | memset(hs->kbd.key, 0, sizeof(hs->kbd.key)); |
490 | hs->kbd.keys = 0; |
491 | hs->kbd.modifiers = 0; |
492 | break; |
493 | case HID_MOUSE: |
494 | case HID_TABLET: |
495 | memset(hs->ptr.queue, 0, sizeof(hs->ptr.queue)); |
496 | break; |
497 | } |
498 | hs->head = 0; |
499 | hs->n = 0; |
500 | hs->protocol = 1; |
501 | hs->idle = 0; |
502 | hs->idle_pending = false; |
503 | hid_del_idle_timer(hs); |
504 | } |
505 | |
506 | void hid_free(HIDState *hs) |
507 | { |
508 | qemu_input_handler_unregister(hs->s); |
509 | hid_del_idle_timer(hs); |
510 | } |
511 | |
512 | static QemuInputHandler hid_keyboard_handler = { |
513 | .name = "QEMU HID Keyboard" , |
514 | .mask = INPUT_EVENT_MASK_KEY, |
515 | .event = hid_keyboard_event, |
516 | }; |
517 | |
518 | static QemuInputHandler hid_mouse_handler = { |
519 | .name = "QEMU HID Mouse" , |
520 | .mask = INPUT_EVENT_MASK_BTN | INPUT_EVENT_MASK_REL, |
521 | .event = hid_pointer_event, |
522 | .sync = hid_pointer_sync, |
523 | }; |
524 | |
525 | static QemuInputHandler hid_tablet_handler = { |
526 | .name = "QEMU HID Tablet" , |
527 | .mask = INPUT_EVENT_MASK_BTN | INPUT_EVENT_MASK_ABS, |
528 | .event = hid_pointer_event, |
529 | .sync = hid_pointer_sync, |
530 | }; |
531 | |
532 | void hid_init(HIDState *hs, int kind, HIDEventFunc event) |
533 | { |
534 | hs->kind = kind; |
535 | hs->event = event; |
536 | |
537 | if (hs->kind == HID_KEYBOARD) { |
538 | hs->s = qemu_input_handler_register((DeviceState *)hs, |
539 | &hid_keyboard_handler); |
540 | qemu_input_handler_activate(hs->s); |
541 | } else if (hs->kind == HID_MOUSE) { |
542 | hs->s = qemu_input_handler_register((DeviceState *)hs, |
543 | &hid_mouse_handler); |
544 | } else if (hs->kind == HID_TABLET) { |
545 | hs->s = qemu_input_handler_register((DeviceState *)hs, |
546 | &hid_tablet_handler); |
547 | } |
548 | } |
549 | |
550 | static int hid_post_load(void *opaque, int version_id) |
551 | { |
552 | HIDState *s = opaque; |
553 | |
554 | hid_set_next_idle(s); |
555 | |
556 | if (s->n == QUEUE_LENGTH && (s->kind == HID_TABLET || |
557 | s->kind == HID_MOUSE)) { |
558 | /* |
559 | * Handle ptr device migration from old qemu with full queue. |
560 | * |
561 | * Throw away everything but the last event, so we propagate |
562 | * at least the current button state to the guest. Also keep |
563 | * current position for the tablet, signal "no motion" for the |
564 | * mouse. |
565 | */ |
566 | HIDPointerEvent evt; |
567 | evt = s->ptr.queue[(s->head+s->n) & QUEUE_MASK]; |
568 | if (s->kind == HID_MOUSE) { |
569 | evt.xdx = 0; |
570 | evt.ydy = 0; |
571 | } |
572 | s->ptr.queue[0] = evt; |
573 | s->head = 0; |
574 | s->n = 1; |
575 | } |
576 | return 0; |
577 | } |
578 | |
579 | static const VMStateDescription vmstate_hid_ptr_queue = { |
580 | .name = "HIDPointerEventQueue" , |
581 | .version_id = 1, |
582 | .minimum_version_id = 1, |
583 | .fields = (VMStateField[]) { |
584 | VMSTATE_INT32(xdx, HIDPointerEvent), |
585 | VMSTATE_INT32(ydy, HIDPointerEvent), |
586 | VMSTATE_INT32(dz, HIDPointerEvent), |
587 | VMSTATE_INT32(buttons_state, HIDPointerEvent), |
588 | VMSTATE_END_OF_LIST() |
589 | } |
590 | }; |
591 | |
592 | const VMStateDescription vmstate_hid_ptr_device = { |
593 | .name = "HIDPointerDevice" , |
594 | .version_id = 1, |
595 | .minimum_version_id = 1, |
596 | .post_load = hid_post_load, |
597 | .fields = (VMStateField[]) { |
598 | VMSTATE_STRUCT_ARRAY(ptr.queue, HIDState, QUEUE_LENGTH, 0, |
599 | vmstate_hid_ptr_queue, HIDPointerEvent), |
600 | VMSTATE_UINT32(head, HIDState), |
601 | VMSTATE_UINT32(n, HIDState), |
602 | VMSTATE_INT32(protocol, HIDState), |
603 | VMSTATE_UINT8(idle, HIDState), |
604 | VMSTATE_END_OF_LIST(), |
605 | } |
606 | }; |
607 | |
608 | const VMStateDescription vmstate_hid_keyboard_device = { |
609 | .name = "HIDKeyboardDevice" , |
610 | .version_id = 1, |
611 | .minimum_version_id = 1, |
612 | .post_load = hid_post_load, |
613 | .fields = (VMStateField[]) { |
614 | VMSTATE_UINT32_ARRAY(kbd.keycodes, HIDState, QUEUE_LENGTH), |
615 | VMSTATE_UINT32(head, HIDState), |
616 | VMSTATE_UINT32(n, HIDState), |
617 | VMSTATE_UINT16(kbd.modifiers, HIDState), |
618 | VMSTATE_UINT8(kbd.leds, HIDState), |
619 | VMSTATE_UINT8_ARRAY(kbd.key, HIDState, 16), |
620 | VMSTATE_INT32(kbd.keys, HIDState), |
621 | VMSTATE_INT32(protocol, HIDState), |
622 | VMSTATE_UINT8(idle, HIDState), |
623 | VMSTATE_END_OF_LIST(), |
624 | } |
625 | }; |
626 | |