2 * QEMU PS/2 keyboard/mouse emulation
4 * Copyright (c) 2003 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24 #include "qemu/osdep.h"
26 #include "hw/input/ps2.h"
27 #include "ui/console.h"
29 #include "sysemu/sysemu.h"
33 /* debug PC keyboard */
36 /* debug PC keyboard : only mouse */
39 /* Keyboard Commands */
40 #define KBD_CMD_SET_LEDS 0xED /* Set keyboard leds */
41 #define KBD_CMD_ECHO 0xEE
42 #define KBD_CMD_SCANCODE 0xF0 /* Get/set scancode set */
43 #define KBD_CMD_GET_ID 0xF2 /* get keyboard ID */
44 #define KBD_CMD_SET_RATE 0xF3 /* Set typematic rate */
45 #define KBD_CMD_ENABLE 0xF4 /* Enable scanning */
46 #define KBD_CMD_RESET_DISABLE 0xF5 /* reset and disable scanning */
47 #define KBD_CMD_RESET_ENABLE 0xF6 /* reset and enable scanning */
48 #define KBD_CMD_RESET 0xFF /* Reset */
50 /* Keyboard Replies */
51 #define KBD_REPLY_POR 0xAA /* Power on reset */
52 #define KBD_REPLY_ID 0xAB /* Keyboard ID */
53 #define KBD_REPLY_ACK 0xFA /* Command ACK */
54 #define KBD_REPLY_RESEND 0xFE /* Command NACK, send the cmd again */
57 #define AUX_SET_SCALE11 0xE6 /* Set 1:1 scaling */
58 #define AUX_SET_SCALE21 0xE7 /* Set 2:1 scaling */
59 #define AUX_SET_RES 0xE8 /* Set resolution */
60 #define AUX_GET_SCALE 0xE9 /* Get scaling factor */
61 #define AUX_SET_STREAM 0xEA /* Set stream mode */
62 #define AUX_POLL 0xEB /* Poll */
63 #define AUX_RESET_WRAP 0xEC /* Reset wrap mode */
64 #define AUX_SET_WRAP 0xEE /* Set wrap mode */
65 #define AUX_SET_REMOTE 0xF0 /* Set remote mode */
66 #define AUX_GET_TYPE 0xF2 /* Get type */
67 #define AUX_SET_SAMPLE 0xF3 /* Set sample rate */
68 #define AUX_ENABLE_DEV 0xF4 /* Enable aux device */
69 #define AUX_DISABLE_DEV 0xF5 /* Disable aux device */
70 #define AUX_SET_DEFAULT 0xF6
71 #define AUX_RESET 0xFF /* Reset aux device */
72 #define AUX_ACK 0xFA /* Command byte ACK. */
74 #define MOUSE_STATUS_REMOTE 0x40
75 #define MOUSE_STATUS_ENABLED 0x20
76 #define MOUSE_STATUS_SCALE21 0x10
78 #define PS2_QUEUE_SIZE 16 /* Buffer size required by PS/2 protocol */
81 /* Keep the data array 256 bytes long, which compatibility
82 with older qemu versions. */
84 int rptr, wptr, count;
90 void (*update_irq)(void *, int);
97 /* QEMU uses translated PC scancodes internally. To avoid multiple
98 conversions we do the translation (if any) in the PS/2 emulation
99 not the keyboard controller. */
101 int scancode_set; /* 1=XT, 2=AT, 3=PS/2 */
107 uint8_t mouse_status;
108 uint8_t mouse_resolution;
109 uint8_t mouse_sample_rate;
111 uint8_t mouse_type; /* 0 = PS2, 3 = IMPS/2, 4 = IMEX */
112 uint8_t mouse_detect_state;
113 int mouse_dx; /* current values, needed for 'poll' mode */
116 uint8_t mouse_buttons;
119 /* Table to convert from PC scancodes to raw scancodes. */
120 static const unsigned char ps2_raw_keycode[128] = {
121 0, 118, 22, 30, 38, 37, 46, 54, 61, 62, 70, 69, 78, 85, 102, 13,
122 21, 29, 36, 45, 44, 53, 60, 67, 68, 77, 84, 91, 90, 20, 28, 27,
123 35, 43, 52, 51, 59, 66, 75, 76, 82, 14, 18, 93, 26, 34, 33, 42,
124 50, 49, 58, 65, 73, 74, 89, 124, 17, 41, 88, 5, 6, 4, 12, 3,
125 11, 2, 10, 1, 9, 119, 126, 108, 117, 125, 123, 107, 115, 116, 121, 105,
126 114, 122, 112, 113, 127, 96, 97, 120, 7, 15, 23, 31, 39, 47, 55, 63,
127 71, 79, 86, 94, 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 87, 111,
128 19, 25, 57, 81, 83, 92, 95, 98, 99, 100, 101, 103, 104, 106, 109, 110
130 static const unsigned char ps2_raw_keycode_set3[128] = {
131 0, 8, 22, 30, 38, 37, 46, 54, 61, 62, 70, 69, 78, 85, 102, 13,
132 21, 29, 36, 45, 44, 53, 60, 67, 68, 77, 84, 91, 90, 17, 28, 27,
133 35, 43, 52, 51, 59, 66, 75, 76, 82, 14, 18, 92, 26, 34, 33, 42,
134 50, 49, 58, 65, 73, 74, 89, 126, 25, 41, 20, 7, 15, 23, 31, 39,
135 47, 2, 63, 71, 79, 118, 95, 108, 117, 125, 132, 107, 115, 116, 124, 105,
136 114, 122, 112, 113, 127, 96, 97, 86, 94, 15, 23, 31, 39, 47, 55, 63,
137 71, 79, 86, 94, 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 87, 111,
138 19, 25, 57, 81, 83, 92, 95, 98, 99, 100, 101, 103, 104, 106, 109, 110
141 void ps2_queue(void *opaque, int b)
143 PS2State *s = (PS2State *)opaque;
144 PS2Queue *q = &s->queue;
146 if (q->count >= PS2_QUEUE_SIZE - 1)
148 q->data[q->wptr] = b;
149 if (++q->wptr == PS2_QUEUE_SIZE)
152 s->update_irq(s->update_arg, 1);
156 keycode is expressed as follow:
157 bit 7 - 0 key pressed, 1 = key released
158 bits 6-0 - translated scancode set 2
160 static void ps2_put_keycode(void *opaque, int keycode)
162 PS2KbdState *s = opaque;
164 trace_ps2_put_keycode(opaque, keycode);
165 qemu_system_wakeup_request(QEMU_WAKEUP_REASON_OTHER);
166 /* XXX: add support for scancode set 1 */
167 if (!s->translate && keycode < 0xe0 && s->scancode_set > 1) {
168 if (keycode & 0x80) {
169 ps2_queue(&s->common, 0xf0);
171 if (s->scancode_set == 2) {
172 keycode = ps2_raw_keycode[keycode & 0x7f];
173 } else if (s->scancode_set == 3) {
174 keycode = ps2_raw_keycode_set3[keycode & 0x7f];
177 ps2_queue(&s->common, keycode);
180 static void ps2_keyboard_event(DeviceState *dev, QemuConsole *src,
183 PS2KbdState *s = (PS2KbdState *)dev;
184 int scancodes[3], i, count;
185 InputKeyEvent *key = evt->u.key.data;
187 qemu_system_wakeup_request(QEMU_WAKEUP_REASON_OTHER);
188 count = qemu_input_key_value_to_scancode(key->key,
191 for (i = 0; i < count; i++) {
192 ps2_put_keycode(s, scancodes[i]);
196 uint32_t ps2_read_data(void *opaque)
198 PS2State *s = (PS2State *)opaque;
202 trace_ps2_read_data(opaque);
205 /* NOTE: if no data left, we return the last keyboard one
206 (needed for EMM386) */
207 /* XXX: need a timer to do things correctly */
210 index = PS2_QUEUE_SIZE - 1;
211 val = q->data[index];
213 val = q->data[q->rptr];
214 if (++q->rptr == PS2_QUEUE_SIZE)
217 /* reading deasserts IRQ */
218 s->update_irq(s->update_arg, 0);
219 /* reassert IRQs if data left */
220 s->update_irq(s->update_arg, q->count != 0);
225 static void ps2_set_ledstate(PS2KbdState *s, int ledstate)
227 trace_ps2_set_ledstate(s, ledstate);
228 s->ledstate = ledstate;
229 kbd_put_ledstate(ledstate);
232 static void ps2_reset_keyboard(PS2KbdState *s)
234 trace_ps2_reset_keyboard(s);
237 ps2_set_ledstate(s, 0);
240 void ps2_write_keyboard(void *opaque, int val)
242 PS2KbdState *s = (PS2KbdState *)opaque;
244 trace_ps2_write_keyboard(opaque, val);
245 switch(s->common.write_cmd) {
250 ps2_queue(&s->common, KBD_REPLY_ACK);
253 ps2_queue(&s->common, KBD_REPLY_RESEND);
256 ps2_queue(&s->common, KBD_REPLY_ACK);
257 /* We emulate a MF2 AT keyboard here */
258 ps2_queue(&s->common, KBD_REPLY_ID);
260 ps2_queue(&s->common, 0x41);
262 ps2_queue(&s->common, 0x83);
265 ps2_queue(&s->common, KBD_CMD_ECHO);
269 ps2_queue(&s->common, KBD_REPLY_ACK);
271 case KBD_CMD_SCANCODE:
272 case KBD_CMD_SET_LEDS:
273 case KBD_CMD_SET_RATE:
274 s->common.write_cmd = val;
275 ps2_queue(&s->common, KBD_REPLY_ACK);
277 case KBD_CMD_RESET_DISABLE:
278 ps2_reset_keyboard(s);
280 ps2_queue(&s->common, KBD_REPLY_ACK);
282 case KBD_CMD_RESET_ENABLE:
283 ps2_reset_keyboard(s);
285 ps2_queue(&s->common, KBD_REPLY_ACK);
288 ps2_reset_keyboard(s);
289 ps2_queue(&s->common, KBD_REPLY_ACK);
290 ps2_queue(&s->common, KBD_REPLY_POR);
293 ps2_queue(&s->common, KBD_REPLY_RESEND);
297 case KBD_CMD_SCANCODE:
299 ps2_queue(&s->common, KBD_REPLY_ACK);
300 if (s->scancode_set == 1)
301 ps2_put_keycode(s, 0x43);
302 else if (s->scancode_set == 2)
303 ps2_put_keycode(s, 0x41);
304 else if (s->scancode_set == 3)
305 ps2_put_keycode(s, 0x3f);
306 } else if (val >= 1 && val <= 3) {
307 s->scancode_set = val;
308 ps2_queue(&s->common, KBD_REPLY_ACK);
310 ps2_queue(&s->common, KBD_REPLY_RESEND);
312 s->common.write_cmd = -1;
314 case KBD_CMD_SET_LEDS:
315 ps2_set_ledstate(s, val);
316 ps2_queue(&s->common, KBD_REPLY_ACK);
317 s->common.write_cmd = -1;
319 case KBD_CMD_SET_RATE:
320 ps2_queue(&s->common, KBD_REPLY_ACK);
321 s->common.write_cmd = -1;
326 /* Set the scancode translation mode.
328 1 = translated scancodes (used by qemu internally). */
330 void ps2_keyboard_set_translation(void *opaque, int mode)
332 PS2KbdState *s = (PS2KbdState *)opaque;
333 trace_ps2_keyboard_set_translation(opaque, mode);
337 static void ps2_mouse_send_packet(PS2MouseState *s)
345 /* XXX: increase range to 8 bits ? */
354 b = 0x08 | ((dx1 < 0) << 4) | ((dy1 < 0) << 5) | (s->mouse_buttons & 0x07);
355 ps2_queue(&s->common, b);
356 ps2_queue(&s->common, dx1 & 0xff);
357 ps2_queue(&s->common, dy1 & 0xff);
358 /* extra byte for IMPS/2 or IMEX */
359 switch(s->mouse_type) {
367 ps2_queue(&s->common, dz1 & 0xff);
374 b = (dz1 & 0x0f) | ((s->mouse_buttons & 0x18) << 1);
375 ps2_queue(&s->common, b);
379 trace_ps2_mouse_send_packet(s, dx1, dy1, dz1, b);
386 static void ps2_mouse_event(DeviceState *dev, QemuConsole *src,
389 static const int bmap[INPUT_BUTTON__MAX] = {
390 [INPUT_BUTTON_LEFT] = MOUSE_EVENT_LBUTTON,
391 [INPUT_BUTTON_MIDDLE] = MOUSE_EVENT_MBUTTON,
392 [INPUT_BUTTON_RIGHT] = MOUSE_EVENT_RBUTTON,
394 PS2MouseState *s = (PS2MouseState *)dev;
395 InputMoveEvent *move;
398 /* check if deltas are recorded when disabled */
399 if (!(s->mouse_status & MOUSE_STATUS_ENABLED))
403 case INPUT_EVENT_KIND_REL:
404 move = evt->u.rel.data;
405 if (move->axis == INPUT_AXIS_X) {
406 s->mouse_dx += move->value;
407 } else if (move->axis == INPUT_AXIS_Y) {
408 s->mouse_dy -= move->value;
412 case INPUT_EVENT_KIND_BTN:
413 btn = evt->u.btn.data;
415 s->mouse_buttons |= bmap[btn->button];
416 if (btn->button == INPUT_BUTTON_WHEEL_UP) {
418 } else if (btn->button == INPUT_BUTTON_WHEEL_DOWN) {
422 s->mouse_buttons &= ~bmap[btn->button];
432 static void ps2_mouse_sync(DeviceState *dev)
434 PS2MouseState *s = (PS2MouseState *)dev;
436 if (s->mouse_buttons) {
437 qemu_system_wakeup_request(QEMU_WAKEUP_REASON_OTHER);
439 if (!(s->mouse_status & MOUSE_STATUS_REMOTE)) {
440 while (s->common.queue.count < PS2_QUEUE_SIZE - 4) {
441 /* if not remote, send event. Multiple events are sent if
443 ps2_mouse_send_packet(s);
444 if (s->mouse_dx == 0 && s->mouse_dy == 0 && s->mouse_dz == 0)
450 void ps2_mouse_fake_event(void *opaque)
452 PS2MouseState *s = opaque;
453 trace_ps2_mouse_fake_event(opaque);
455 ps2_mouse_sync(opaque);
458 void ps2_write_mouse(void *opaque, int val)
460 PS2MouseState *s = (PS2MouseState *)opaque;
462 trace_ps2_write_mouse(opaque, val);
464 printf("kbd: write mouse 0x%02x\n", val);
466 switch(s->common.write_cmd) {
471 if (val == AUX_RESET_WRAP) {
473 ps2_queue(&s->common, AUX_ACK);
475 } else if (val != AUX_RESET) {
476 ps2_queue(&s->common, val);
481 case AUX_SET_SCALE11:
482 s->mouse_status &= ~MOUSE_STATUS_SCALE21;
483 ps2_queue(&s->common, AUX_ACK);
485 case AUX_SET_SCALE21:
486 s->mouse_status |= MOUSE_STATUS_SCALE21;
487 ps2_queue(&s->common, AUX_ACK);
490 s->mouse_status &= ~MOUSE_STATUS_REMOTE;
491 ps2_queue(&s->common, AUX_ACK);
495 ps2_queue(&s->common, AUX_ACK);
498 s->mouse_status |= MOUSE_STATUS_REMOTE;
499 ps2_queue(&s->common, AUX_ACK);
502 ps2_queue(&s->common, AUX_ACK);
503 ps2_queue(&s->common, s->mouse_type);
507 s->common.write_cmd = val;
508 ps2_queue(&s->common, AUX_ACK);
511 ps2_queue(&s->common, AUX_ACK);
512 ps2_queue(&s->common, s->mouse_status);
513 ps2_queue(&s->common, s->mouse_resolution);
514 ps2_queue(&s->common, s->mouse_sample_rate);
517 ps2_queue(&s->common, AUX_ACK);
518 ps2_mouse_send_packet(s);
521 s->mouse_status |= MOUSE_STATUS_ENABLED;
522 ps2_queue(&s->common, AUX_ACK);
524 case AUX_DISABLE_DEV:
525 s->mouse_status &= ~MOUSE_STATUS_ENABLED;
526 ps2_queue(&s->common, AUX_ACK);
528 case AUX_SET_DEFAULT:
529 s->mouse_sample_rate = 100;
530 s->mouse_resolution = 2;
532 ps2_queue(&s->common, AUX_ACK);
535 s->mouse_sample_rate = 100;
536 s->mouse_resolution = 2;
539 ps2_queue(&s->common, AUX_ACK);
540 ps2_queue(&s->common, 0xaa);
541 ps2_queue(&s->common, s->mouse_type);
548 s->mouse_sample_rate = val;
549 /* detect IMPS/2 or IMEX */
550 switch(s->mouse_detect_state) {
554 s->mouse_detect_state = 1;
558 s->mouse_detect_state = 2;
560 s->mouse_detect_state = 3;
562 s->mouse_detect_state = 0;
566 s->mouse_type = 3; /* IMPS/2 */
567 s->mouse_detect_state = 0;
571 s->mouse_type = 4; /* IMEX */
572 s->mouse_detect_state = 0;
575 ps2_queue(&s->common, AUX_ACK);
576 s->common.write_cmd = -1;
579 s->mouse_resolution = val;
580 ps2_queue(&s->common, AUX_ACK);
581 s->common.write_cmd = -1;
586 static void ps2_common_reset(PS2State *s)
594 s->update_irq(s->update_arg, 0);
597 static void ps2_common_post_load(PS2State *s)
599 PS2Queue *q = &s->queue;
602 int tmp_data[PS2_QUEUE_SIZE];
604 /* set the useful data buffer queue size, < PS2_QUEUE_SIZE */
605 size = q->count > PS2_QUEUE_SIZE ? 0 : q->count;
607 /* move the queue elements to the start of data array */
609 for (i = 0; i < size; i++) {
610 /* move the queue elements to the temporary buffer */
611 tmp_data[i] = q->data[q->rptr];
612 if (++q->rptr == 256) {
616 memcpy(q->data, tmp_data, size);
618 /* reset rptr/wptr/count */
622 s->update_irq(s->update_arg, q->count != 0);
625 static void ps2_kbd_reset(void *opaque)
627 PS2KbdState *s = (PS2KbdState *) opaque;
629 trace_ps2_kbd_reset(opaque);
630 ps2_common_reset(&s->common);
636 static void ps2_mouse_reset(void *opaque)
638 PS2MouseState *s = (PS2MouseState *) opaque;
640 trace_ps2_mouse_reset(opaque);
641 ps2_common_reset(&s->common);
643 s->mouse_resolution = 0;
644 s->mouse_sample_rate = 0;
647 s->mouse_detect_state = 0;
651 s->mouse_buttons = 0;
654 static const VMStateDescription vmstate_ps2_common = {
655 .name = "PS2 Common State",
657 .minimum_version_id = 2,
658 .fields = (VMStateField[]) {
659 VMSTATE_INT32(write_cmd, PS2State),
660 VMSTATE_INT32(queue.rptr, PS2State),
661 VMSTATE_INT32(queue.wptr, PS2State),
662 VMSTATE_INT32(queue.count, PS2State),
663 VMSTATE_BUFFER(queue.data, PS2State),
664 VMSTATE_END_OF_LIST()
668 static bool ps2_keyboard_ledstate_needed(void *opaque)
670 PS2KbdState *s = opaque;
672 return s->ledstate != 0; /* 0 is default state */
675 static int ps2_kbd_ledstate_post_load(void *opaque, int version_id)
677 PS2KbdState *s = opaque;
679 kbd_put_ledstate(s->ledstate);
683 static const VMStateDescription vmstate_ps2_keyboard_ledstate = {
684 .name = "ps2kbd/ledstate",
686 .minimum_version_id = 2,
687 .post_load = ps2_kbd_ledstate_post_load,
688 .needed = ps2_keyboard_ledstate_needed,
689 .fields = (VMStateField[]) {
690 VMSTATE_INT32(ledstate, PS2KbdState),
691 VMSTATE_END_OF_LIST()
695 static int ps2_kbd_post_load(void* opaque, int version_id)
697 PS2KbdState *s = (PS2KbdState*)opaque;
698 PS2State *ps2 = &s->common;
703 ps2_common_post_load(ps2);
708 static void ps2_kbd_pre_save(void *opaque)
710 PS2KbdState *s = (PS2KbdState *)opaque;
711 PS2State *ps2 = &s->common;
713 ps2_common_post_load(ps2);
716 static const VMStateDescription vmstate_ps2_keyboard = {
719 .minimum_version_id = 2,
720 .post_load = ps2_kbd_post_load,
721 .pre_save = ps2_kbd_pre_save,
722 .fields = (VMStateField[]) {
723 VMSTATE_STRUCT(common, PS2KbdState, 0, vmstate_ps2_common, PS2State),
724 VMSTATE_INT32(scan_enabled, PS2KbdState),
725 VMSTATE_INT32(translate, PS2KbdState),
726 VMSTATE_INT32_V(scancode_set, PS2KbdState,3),
727 VMSTATE_END_OF_LIST()
729 .subsections = (const VMStateDescription*[]) {
730 &vmstate_ps2_keyboard_ledstate,
735 static int ps2_mouse_post_load(void *opaque, int version_id)
737 PS2MouseState *s = (PS2MouseState *)opaque;
738 PS2State *ps2 = &s->common;
740 ps2_common_post_load(ps2);
745 static void ps2_mouse_pre_save(void *opaque)
747 PS2MouseState *s = (PS2MouseState *)opaque;
748 PS2State *ps2 = &s->common;
750 ps2_common_post_load(ps2);
753 static const VMStateDescription vmstate_ps2_mouse = {
756 .minimum_version_id = 2,
757 .post_load = ps2_mouse_post_load,
758 .pre_save = ps2_mouse_pre_save,
759 .fields = (VMStateField[]) {
760 VMSTATE_STRUCT(common, PS2MouseState, 0, vmstate_ps2_common, PS2State),
761 VMSTATE_UINT8(mouse_status, PS2MouseState),
762 VMSTATE_UINT8(mouse_resolution, PS2MouseState),
763 VMSTATE_UINT8(mouse_sample_rate, PS2MouseState),
764 VMSTATE_UINT8(mouse_wrap, PS2MouseState),
765 VMSTATE_UINT8(mouse_type, PS2MouseState),
766 VMSTATE_UINT8(mouse_detect_state, PS2MouseState),
767 VMSTATE_INT32(mouse_dx, PS2MouseState),
768 VMSTATE_INT32(mouse_dy, PS2MouseState),
769 VMSTATE_INT32(mouse_dz, PS2MouseState),
770 VMSTATE_UINT8(mouse_buttons, PS2MouseState),
771 VMSTATE_END_OF_LIST()
775 static QemuInputHandler ps2_keyboard_handler = {
776 .name = "QEMU PS/2 Keyboard",
777 .mask = INPUT_EVENT_MASK_KEY,
778 .event = ps2_keyboard_event,
781 void *ps2_kbd_init(void (*update_irq)(void *, int), void *update_arg)
783 PS2KbdState *s = (PS2KbdState *)g_malloc0(sizeof(PS2KbdState));
785 trace_ps2_kbd_init(s);
786 s->common.update_irq = update_irq;
787 s->common.update_arg = update_arg;
789 vmstate_register(NULL, 0, &vmstate_ps2_keyboard, s);
790 qemu_input_handler_register((DeviceState *)s,
791 &ps2_keyboard_handler);
792 qemu_register_reset(ps2_kbd_reset, s);
796 static QemuInputHandler ps2_mouse_handler = {
797 .name = "QEMU PS/2 Mouse",
798 .mask = INPUT_EVENT_MASK_BTN | INPUT_EVENT_MASK_REL,
799 .event = ps2_mouse_event,
800 .sync = ps2_mouse_sync,
803 void *ps2_mouse_init(void (*update_irq)(void *, int), void *update_arg)
805 PS2MouseState *s = (PS2MouseState *)g_malloc0(sizeof(PS2MouseState));
807 trace_ps2_mouse_init(s);
808 s->common.update_irq = update_irq;
809 s->common.update_arg = update_arg;
810 vmstate_register(NULL, 0, &vmstate_ps2_mouse, s);
811 qemu_input_handler_register((DeviceState *)s,
813 qemu_register_reset(ps2_mouse_reset, s);