hw/ps2.c

   1 /*
   2  * QEMU PS/2 keyboard/mouse emulation
   3  *
   4  * Copyright (c) 2003 Fabrice Bellard
   5  *
   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:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  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
  22  * THE SOFTWARE.
  23  */
  24 #include "hw.h"
  25 #include "ps2.h"
  26 #include "console.h"
  27
  28 /* debug PC keyboard */
  29 //#define DEBUG_KBD
  30
  31 /* debug PC keyboard : only mouse */
  32 //#define DEBUG_MOUSE
  33
  34 /* Keyboard Commands */
  35 #define KBD_CMD_SET_LEDS        0xED    /* Set keyboard leds */
  36 #define KBD_CMD_ECHO            0xEE
  37 #define KBD_CMD_SCANCODE        0xF0    /* Get/set scancode set */
  38 #define KBD_CMD_GET_ID          0xF2    /* get keyboard ID */
  39 #define KBD_CMD_SET_RATE        0xF3    /* Set typematic rate */
  40 #define KBD_CMD_ENABLE          0xF4    /* Enable scanning */
  41 #define KBD_CMD_RESET_DISABLE   0xF5    /* reset and disable scanning */
  42 #define KBD_CMD_RESET_ENABLE    0xF6    /* reset and enable scanning */
  43 #define KBD_CMD_RESET           0xFF    /* Reset */
  44
  45 /* Keyboard Replies */
  46 #define KBD_REPLY_POR           0xAA    /* Power on reset */
  47 #define KBD_REPLY_ID            0xAB    /* Keyboard ID */
  48 #define KBD_REPLY_ACK           0xFA    /* Command ACK */
  49 #define KBD_REPLY_RESEND        0xFE    /* Command NACK, send the cmd again */
  50
  51 /* Mouse Commands */
  52 #define AUX_SET_SCALE11         0xE6    /* Set 1:1 scaling */
  53 #define AUX_SET_SCALE21         0xE7    /* Set 2:1 scaling */
  54 #define AUX_SET_RES             0xE8    /* Set resolution */
  55 #define AUX_GET_SCALE           0xE9    /* Get scaling factor */
  56 #define AUX_SET_STREAM          0xEA    /* Set stream mode */
  57 #define AUX_POLL                0xEB    /* Poll */
  58 #define AUX_RESET_WRAP          0xEC    /* Reset wrap mode */
  59 #define AUX_SET_WRAP            0xEE    /* Set wrap mode */
  60 #define AUX_SET_REMOTE          0xF0    /* Set remote mode */
  61 #define AUX_GET_TYPE            0xF2    /* Get type */
  62 #define AUX_SET_SAMPLE          0xF3    /* Set sample rate */
  63 #define AUX_ENABLE_DEV          0xF4    /* Enable aux device */
  64 #define AUX_DISABLE_DEV         0xF5    /* Disable aux device */
  65 #define AUX_SET_DEFAULT         0xF6
  66 #define AUX_RESET               0xFF    /* Reset aux device */
  67 #define AUX_ACK                 0xFA    /* Command byte ACK. */
  68
  69 #define MOUSE_STATUS_REMOTE     0x40
  70 #define MOUSE_STATUS_ENABLED    0x20
  71 #define MOUSE_STATUS_SCALE21    0x10
  72
  73 #define PS2_QUEUE_SIZE 256
  74
  75 typedef struct {
  76     uint8_t data[PS2_QUEUE_SIZE];
  77     int rptr, wptr, count;
  78 } PS2Queue;
  79
  80 typedef struct {
  81     PS2Queue queue;
  82     int32_t write_cmd;
  83     void (*update_irq)(void *, int);
  84     void *update_arg;
  85 } PS2State;
  86
  87 typedef struct {
  88     PS2State common;
  89     int scan_enabled;
  90     /* Qemu uses translated PC scancodes internally.  To avoid multiple
  91        conversions we do the translation (if any) in the PS/2 emulation
  92        not the keyboard controller.  */
  93     int translate;
  94     int scancode_set; /* 1=XT, 2=AT, 3=PS/2 */
  95 } PS2KbdState;
  96
  97 typedef struct {
  98     PS2State common;
  99     uint8_t mouse_status;
 100     uint8_t mouse_resolution;
 101     uint8_t mouse_sample_rate;
 102     uint8_t mouse_wrap;
 103     uint8_t mouse_type; /* 0 = PS2, 3 = IMPS/2, 4 = IMEX */
 104     uint8_t mouse_detect_state;
 105     int mouse_dx; /* current values, needed for 'poll' mode */
 106     int mouse_dy;
 107     int mouse_dz;
 108     uint8_t mouse_buttons;
 109 } PS2MouseState;
 110
 111 /* Table to convert from PC scancodes to raw scancodes.  */
 112 static const unsigned char ps2_raw_keycode[128] = {
 113           0,118, 22, 30, 38, 37, 46, 54, 61, 62, 70, 69, 78, 85,102, 13,
 114          21, 29, 36, 45, 44, 53, 60, 67, 68, 77, 84, 91, 90, 20, 28, 27,
 115          35, 43, 52, 51, 59, 66, 75, 76, 82, 14, 18, 93, 26, 34, 33, 42,
 116          50, 49, 58, 65, 73, 74, 89,124, 17, 41, 88,  5,  6,  4, 12,  3,
 117          11,  2, 10,  1,  9,119,126,108,117,125,123,107,115,116,121,105,
 118         114,122,112,113,127, 96, 97,120,  7, 15, 23, 31, 39, 47, 55, 63,
 119          71, 79, 86, 94,  8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 87,111,
 120          19, 25, 57, 81, 83, 92, 95, 98, 99,100,101,103,104,106,109,110
 121 };
 122
 123 void ps2_queue(void *opaque, int b)
 124 {
 125     PS2State *s = (PS2State *)opaque;
 126     PS2Queue *q = &s->queue;
 127
 128     if (q->count >= PS2_QUEUE_SIZE)
 129         return;
 130     q->data[q->wptr] = b;
 131     if (++q->wptr == PS2_QUEUE_SIZE)
 132         q->wptr = 0;
 133     q->count++;
 134     s->update_irq(s->update_arg, 1);
 135 }
 136
 137 /*
 138    keycode is expressed as follow:
 139    bit 7    - 0 key pressed, 1 = key released
 140    bits 6-0 - translated scancode set 2
 141  */
 142 static void ps2_put_keycode(void *opaque, int keycode)
 143 {
 144     PS2KbdState *s = opaque;
 145
 146     /* XXX: add support for scancode sets 1 and 3 */
 147     if (!s->translate && keycode < 0xe0 && s->scancode_set == 2)
 148       {
 149         if (keycode & 0x80)
 150             ps2_queue(&s->common, 0xf0);
 151         keycode = ps2_raw_keycode[keycode & 0x7f];
 152       }
 153     ps2_queue(&s->common, keycode);
 154 }
 155
 156 uint32_t ps2_read_data(void *opaque)
 157 {
 158     PS2State *s = (PS2State *)opaque;
 159     PS2Queue *q;
 160     int val, index;
 161
 162     q = &s->queue;
 163     if (q->count == 0) {
 164         /* NOTE: if no data left, we return the last keyboard one
 165            (needed for EMM386) */
 166         /* XXX: need a timer to do things correctly */
 167         index = q->rptr - 1;
 168         if (index < 0)
 169             index = PS2_QUEUE_SIZE - 1;
 170         val = q->data[index];
 171     } else {
 172         val = q->data[q->rptr];
 173         if (++q->rptr == PS2_QUEUE_SIZE)
 174             q->rptr = 0;
 175         q->count--;
 176         /* reading deasserts IRQ */
 177         s->update_irq(s->update_arg, 0);
 178         /* reassert IRQs if data left */
 179         s->update_irq(s->update_arg, q->count != 0);
 180     }
 181     return val;
 182 }
 183
 184 static void ps2_reset_keyboard(PS2KbdState *s)
 185 {
 186     s->scan_enabled = 1;
 187     s->scancode_set = 2;
 188     kbd_put_ledstate(0);
 189 }
 190
 191 void ps2_write_keyboard(void *opaque, int val)
 192 {
 193     PS2KbdState *s = (PS2KbdState *)opaque;
 194
 195     switch(s->common.write_cmd) {
 196     default:
 197     case -1:
 198         switch(val) {
 199         case 0x00:
 200             ps2_queue(&s->common, KBD_REPLY_ACK);
 201             break;
 202         case 0x05:
 203             ps2_queue(&s->common, KBD_REPLY_RESEND);
 204             break;
 205         case KBD_CMD_GET_ID:
 206             ps2_queue(&s->common, KBD_REPLY_ACK);
 207             /* We emulate a MF2 AT keyboard here */
 208             ps2_queue(&s->common, KBD_REPLY_ID);
 209             if (s->translate)
 210                 ps2_queue(&s->common, 0x41);
 211             else
 212                 ps2_queue(&s->common, 0x83);
 213             break;
 214         case KBD_CMD_ECHO:
 215             ps2_queue(&s->common, KBD_CMD_ECHO);
 216             break;
 217         case KBD_CMD_ENABLE:
 218             s->scan_enabled = 1;
 219             ps2_queue(&s->common, KBD_REPLY_ACK);
 220             break;
 221         case KBD_CMD_SCANCODE:
 222         case KBD_CMD_SET_LEDS:
 223         case KBD_CMD_SET_RATE:
 224             s->common.write_cmd = val;
 225             ps2_queue(&s->common, KBD_REPLY_ACK);
 226             break;
 227         case KBD_CMD_RESET_DISABLE:
 228             ps2_reset_keyboard(s);
 229             s->scan_enabled = 0;
 230             ps2_queue(&s->common, KBD_REPLY_ACK);
 231             break;
 232         case KBD_CMD_RESET_ENABLE:
 233             ps2_reset_keyboard(s);
 234             s->scan_enabled = 1;
 235             ps2_queue(&s->common, KBD_REPLY_ACK);
 236             break;
 237         case KBD_CMD_RESET:
 238             ps2_reset_keyboard(s);
 239             ps2_queue(&s->common, KBD_REPLY_ACK);
 240             ps2_queue(&s->common, KBD_REPLY_POR);
 241             break;
 242         default:
 243             ps2_queue(&s->common, KBD_REPLY_ACK);
 244             break;
 245         }
 246         break;
 247     case KBD_CMD_SCANCODE:
 248         if (val == 0) {
 249             if (s->scancode_set == 1)
 250                 ps2_put_keycode(s, 0x43);
 251             else if (s->scancode_set == 2)
 252                 ps2_put_keycode(s, 0x41);
 253             else if (s->scancode_set == 3)
 254                 ps2_put_keycode(s, 0x3f);
 255         } else {
 256             if (val >= 1 && val <= 3)
 257                 s->scancode_set = val;
 258             ps2_queue(&s->common, KBD_REPLY_ACK);
 259         }
 260         s->common.write_cmd = -1;
 261         break;
 262     case KBD_CMD_SET_LEDS:
 263         kbd_put_ledstate(val);
 264         ps2_queue(&s->common, KBD_REPLY_ACK);
 265         s->common.write_cmd = -1;
 266         break;
 267     case KBD_CMD_SET_RATE:
 268         ps2_queue(&s->common, KBD_REPLY_ACK);
 269         s->common.write_cmd = -1;
 270         break;
 271     }
 272 }
 273
 274 /* Set the scancode translation mode.
 275    0 = raw scancodes.
 276    1 = translated scancodes (used by qemu internally).  */
 277
 278 void ps2_keyboard_set_translation(void *opaque, int mode)
 279 {
 280     PS2KbdState *s = (PS2KbdState *)opaque;
 281     s->translate = mode;
 282 }
 283
 284 static void ps2_mouse_send_packet(PS2MouseState *s)
 285 {
 286     unsigned int b;
 287     int dx1, dy1, dz1;
 288
 289     dx1 = s->mouse_dx;
 290     dy1 = s->mouse_dy;
 291     dz1 = s->mouse_dz;
 292     /* XXX: increase range to 8 bits ? */
 293     if (dx1 > 127)
 294         dx1 = 127;
 295     else if (dx1 < -127)
 296         dx1 = -127;
 297     if (dy1 > 127)
 298         dy1 = 127;
 299     else if (dy1 < -127)
 300         dy1 = -127;
 301     b = 0x08 | ((dx1 < 0) << 4) | ((dy1 < 0) << 5) | (s->mouse_buttons & 0x07);
 302     ps2_queue(&s->common, b);
 303     ps2_queue(&s->common, dx1 & 0xff);
 304     ps2_queue(&s->common, dy1 & 0xff);
 305     /* extra byte for IMPS/2 or IMEX */
 306     switch(s->mouse_type) {
 307     default:
 308         break;
 309     case 3:
 310         if (dz1 > 127)
 311             dz1 = 127;
 312         else if (dz1 < -127)
 313                 dz1 = -127;
 314         ps2_queue(&s->common, dz1 & 0xff);
 315         break;
 316     case 4:
 317         if (dz1 > 7)
 318             dz1 = 7;
 319         else if (dz1 < -7)
 320             dz1 = -7;
 321         b = (dz1 & 0x0f) | ((s->mouse_buttons & 0x18) << 1);
 322         ps2_queue(&s->common, b);
 323         break;
 324     }
 325
 326     /* update deltas */
 327     s->mouse_dx -= dx1;
 328     s->mouse_dy -= dy1;
 329     s->mouse_dz -= dz1;
 330 }
 331
 332 static void ps2_mouse_event(void *opaque,
 333                             int dx, int dy, int dz, int buttons_state)
 334 {
 335     PS2MouseState *s = opaque;
 336
 337     /* check if deltas are recorded when disabled */
 338     if (!(s->mouse_status & MOUSE_STATUS_ENABLED))
 339         return;
 340
 341     s->mouse_dx += dx;
 342     s->mouse_dy -= dy;
 343     s->mouse_dz += dz;
 344     /* XXX: SDL sometimes generates nul events: we delete them */
 345     if (s->mouse_dx == 0 && s->mouse_dy == 0 && s->mouse_dz == 0 &&
 346         s->mouse_buttons == buttons_state)
 347         return;
 348     s->mouse_buttons = buttons_state;
 349
 350     if (!(s->mouse_status & MOUSE_STATUS_REMOTE) &&
 351         (s->common.queue.count < (PS2_QUEUE_SIZE - 16))) {
 352         for(;;) {
 353             /* if not remote, send event. Multiple events are sent if
 354                too big deltas */
 355             ps2_mouse_send_packet(s);
 356             if (s->mouse_dx == 0 && s->mouse_dy == 0 && s->mouse_dz == 0)
 357                 break;
 358         }
 359     }
 360 }
 361
 362 void ps2_mouse_fake_event(void *opaque)
 363 {
 364     ps2_mouse_event(opaque, 1, 0, 0, 0);
 365 }
 366
 367 void ps2_write_mouse(void *opaque, int val)
 368 {
 369     PS2MouseState *s = (PS2MouseState *)opaque;
 370 #ifdef DEBUG_MOUSE
 371     printf("kbd: write mouse 0x%02x\n", val);
 372 #endif
 373     switch(s->common.write_cmd) {
 374     default:
 375     case -1:
 376         /* mouse command */
 377         if (s->mouse_wrap) {
 378             if (val == AUX_RESET_WRAP) {
 379                 s->mouse_wrap = 0;
 380                 ps2_queue(&s->common, AUX_ACK);
 381                 return;
 382             } else if (val != AUX_RESET) {
 383                 ps2_queue(&s->common, val);
 384                 return;
 385             }
 386         }
 387         switch(val) {
 388         case AUX_SET_SCALE11:
 389             s->mouse_status &= ~MOUSE_STATUS_SCALE21;
 390             ps2_queue(&s->common, AUX_ACK);
 391             break;
 392         case AUX_SET_SCALE21:
 393             s->mouse_status |= MOUSE_STATUS_SCALE21;
 394             ps2_queue(&s->common, AUX_ACK);
 395             break;
 396         case AUX_SET_STREAM:
 397             s->mouse_status &= ~MOUSE_STATUS_REMOTE;
 398             ps2_queue(&s->common, AUX_ACK);
 399             break;
 400         case AUX_SET_WRAP:
 401             s->mouse_wrap = 1;
 402             ps2_queue(&s->common, AUX_ACK);
 403             break;
 404         case AUX_SET_REMOTE:
 405             s->mouse_status |= MOUSE_STATUS_REMOTE;
 406             ps2_queue(&s->common, AUX_ACK);
 407             break;
 408         case AUX_GET_TYPE:
 409             ps2_queue(&s->common, AUX_ACK);
 410             ps2_queue(&s->common, s->mouse_type);
 411             break;
 412         case AUX_SET_RES:
 413         case AUX_SET_SAMPLE:
 414             s->common.write_cmd = val;
 415             ps2_queue(&s->common, AUX_ACK);
 416             break;
 417         case AUX_GET_SCALE:
 418             ps2_queue(&s->common, AUX_ACK);
 419             ps2_queue(&s->common, s->mouse_status);
 420             ps2_queue(&s->common, s->mouse_resolution);
 421             ps2_queue(&s->common, s->mouse_sample_rate);
 422             break;
 423         case AUX_POLL:
 424             ps2_queue(&s->common, AUX_ACK);
 425             ps2_mouse_send_packet(s);
 426             break;
 427         case AUX_ENABLE_DEV:
 428             s->mouse_status |= MOUSE_STATUS_ENABLED;
 429             ps2_queue(&s->common, AUX_ACK);
 430             break;
 431         case AUX_DISABLE_DEV:
 432             s->mouse_status &= ~MOUSE_STATUS_ENABLED;
 433             ps2_queue(&s->common, AUX_ACK);
 434             break;
 435         case AUX_SET_DEFAULT:
 436             s->mouse_sample_rate = 100;
 437             s->mouse_resolution = 2;
 438             s->mouse_status = 0;
 439             ps2_queue(&s->common, AUX_ACK);
 440             break;
 441         case AUX_RESET:
 442             s->mouse_sample_rate = 100;
 443             s->mouse_resolution = 2;
 444             s->mouse_status = 0;
 445             s->mouse_type = 0;
 446             ps2_queue(&s->common, AUX_ACK);
 447             ps2_queue(&s->common, 0xaa);
 448             ps2_queue(&s->common, s->mouse_type);
 449             break;
 450         default:
 451             break;
 452         }
 453         break;
 454     case AUX_SET_SAMPLE:
 455         s->mouse_sample_rate = val;
 456         /* detect IMPS/2 or IMEX */
 457         switch(s->mouse_detect_state) {
 458         default:
 459         case 0:
 460             if (val == 200)
 461                 s->mouse_detect_state = 1;
 462             break;
 463         case 1:
 464             if (val == 100)
 465                 s->mouse_detect_state = 2;
 466             else if (val == 200)
 467                 s->mouse_detect_state = 3;
 468             else
 469                 s->mouse_detect_state = 0;
 470             break;
 471         case 2:
 472             if (val == 80)
 473                 s->mouse_type = 3; /* IMPS/2 */
 474             s->mouse_detect_state = 0;
 475             break;
 476         case 3:
 477             if (val == 80)
 478                 s->mouse_type = 4; /* IMEX */
 479             s->mouse_detect_state = 0;
 480             break;
 481         }
 482         ps2_queue(&s->common, AUX_ACK);
 483         s->common.write_cmd = -1;
 484         break;
 485     case AUX_SET_RES:
 486         s->mouse_resolution = val;
 487         ps2_queue(&s->common, AUX_ACK);
 488         s->common.write_cmd = -1;
 489         break;
 490     }
 491 }
 492
 493 static void ps2_common_reset(PS2State *s)
 494 {
 495     PS2Queue *q;
 496     s->write_cmd = -1;
 497     q = &s->queue;
 498     q->rptr = 0;
 499     q->wptr = 0;
 500     q->count = 0;
 501     s->update_irq(s->update_arg, 0);
 502 }
 503
 504 static void ps2_kbd_reset(void *opaque)
 505 {
 506     PS2KbdState *s = (PS2KbdState *) opaque;
 507
 508     ps2_common_reset(&s->common);
 509     s->scan_enabled = 0;
 510     s->translate = 0;
 511     s->scancode_set = 0;
 512 }
 513
 514 static void ps2_mouse_reset(void *opaque)
 515 {
 516     PS2MouseState *s = (PS2MouseState *) opaque;
 517
 518     ps2_common_reset(&s->common);
 519     s->mouse_status = 0;
 520     s->mouse_resolution = 0;
 521     s->mouse_sample_rate = 0;
 522     s->mouse_wrap = 0;
 523     s->mouse_type = 0;
 524     s->mouse_detect_state = 0;
 525     s->mouse_dx = 0;
 526     s->mouse_dy = 0;
 527     s->mouse_dz = 0;
 528     s->mouse_buttons = 0;
 529 }
 530
 531 static const VMStateDescription vmstate_ps2_common = {
 532     .name = "PS2 Common State",
 533     .version_id = 3,
 534     .minimum_version_id = 2,
 535     .minimum_version_id_old = 2,
 536     .fields      = (VMStateField []) {
 537         VMSTATE_INT32(write_cmd, PS2State),
 538         VMSTATE_INT32(queue.rptr, PS2State),
 539         VMSTATE_INT32(queue.wptr, PS2State),
 540         VMSTATE_INT32(queue.count, PS2State),
 541         VMSTATE_BUFFER(queue.data, PS2State),
 542         VMSTATE_END_OF_LIST()
 543     }
 544 };
 545
 546 static int ps2_kbd_post_load(void* opaque, int version_id)
 547 {
 548     PS2KbdState *s = (PS2KbdState*)opaque;
 549
 550     if (version_id == 2)
 551         s->scancode_set=2;
 552     return 0;
 553 }
 554
 555 static const VMStateDescription vmstate_ps2_keyboard = {
 556     .name = "ps2kbd",
 557     .version_id = 3,
 558     .minimum_version_id = 2,
 559     .minimum_version_id_old = 2,
 560     .post_load = ps2_kbd_post_load,
 561     .fields      = (VMStateField []) {
 562         VMSTATE_STRUCT(common, PS2KbdState, 0, vmstate_ps2_common, PS2State),
 563         VMSTATE_INT32(scan_enabled, PS2KbdState),
 564         VMSTATE_INT32(translate, PS2KbdState),
 565         VMSTATE_INT32_V(scancode_set, PS2KbdState,3),
 566         VMSTATE_END_OF_LIST()
 567     }
 568 };
 569
 570 static const VMStateDescription vmstate_ps2_mouse = {
 571     .name = "ps2mouse",
 572     .version_id = 2,
 573     .minimum_version_id = 2,
 574     .minimum_version_id_old = 2,
 575     .fields      = (VMStateField []) {
 576         VMSTATE_STRUCT(common, PS2MouseState, 0, vmstate_ps2_common, PS2State),
 577         VMSTATE_UINT8(mouse_status, PS2MouseState),
 578         VMSTATE_UINT8(mouse_resolution, PS2MouseState),
 579         VMSTATE_UINT8(mouse_sample_rate, PS2MouseState),
 580         VMSTATE_UINT8(mouse_wrap, PS2MouseState),
 581         VMSTATE_UINT8(mouse_type, PS2MouseState),
 582         VMSTATE_UINT8(mouse_detect_state, PS2MouseState),
 583         VMSTATE_INT32(mouse_dx, PS2MouseState),
 584         VMSTATE_INT32(mouse_dy, PS2MouseState),
 585         VMSTATE_INT32(mouse_dz, PS2MouseState),
 586         VMSTATE_UINT8(mouse_buttons, PS2MouseState),
 587         VMSTATE_END_OF_LIST()
 588     }
 589 };
 590
 591 void *ps2_kbd_init(void (*update_irq)(void *, int), void *update_arg)
 592 {
 593     PS2KbdState *s = (PS2KbdState *)qemu_mallocz(sizeof(PS2KbdState));
 594
 595     s->common.update_irq = update_irq;
 596     s->common.update_arg = update_arg;
 597     s->scancode_set = 2;
 598     vmstate_register(0, &vmstate_ps2_keyboard, s);
 599     qemu_add_kbd_event_handler(ps2_put_keycode, s);
 600     qemu_register_reset(ps2_kbd_reset, s);
 601     return s;
 602 }
 603
 604 void *ps2_mouse_init(void (*update_irq)(void *, int), void *update_arg)
 605 {
 606     PS2MouseState *s = (PS2MouseState *)qemu_mallocz(sizeof(PS2MouseState));
 607
 608     s->common.update_irq = update_irq;
 609     s->common.update_arg = update_arg;
 610     vmstate_register(0, &vmstate_ps2_mouse, s);
 611     qemu_add_mouse_event_handler(ps2_mouse_event, s, 0, "QEMU PS/2 Mouse");
 612     qemu_register_reset(ps2_mouse_reset, s);
 613     return s;
 614 }