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 25 #include "qemu/osdep.h" 26 #include "qemu/log.h" 27 #include "hw/input/ps2.h" 28 #include "migration/vmstate.h" 29 #include "ui/console.h" 30 #include "ui/input.h" 31 #include "sysemu/reset.h" 32 #include "sysemu/runstate.h" 33 34 #include "trace.h" 35 36 /* Keyboard Commands */ 37 #define KBD_CMD_SET_LEDS 0xED /* Set keyboard leds */ 38 #define KBD_CMD_ECHO 0xEE 39 #define KBD_CMD_SCANCODE 0xF0 /* Get/set scancode set */ 40 #define KBD_CMD_GET_ID 0xF2 /* get keyboard ID */ 41 #define KBD_CMD_SET_RATE 0xF3 /* Set typematic rate */ 42 #define KBD_CMD_ENABLE 0xF4 /* Enable scanning */ 43 #define KBD_CMD_RESET_DISABLE 0xF5 /* reset and disable scanning */ 44 #define KBD_CMD_RESET_ENABLE 0xF6 /* reset and enable scanning */ 45 #define KBD_CMD_RESET 0xFF /* Reset */ 46 #define KBD_CMD_SET_MAKE_BREAK 0xFC /* Set Make and Break mode */ 47 #define KBD_CMD_SET_TYPEMATIC 0xFA /* Set Typematic Make and Break mode */ 48 49 /* Keyboard Replies */ 50 #define KBD_REPLY_POR 0xAA /* Power on reset */ 51 #define KBD_REPLY_ID 0xAB /* Keyboard ID */ 52 #define KBD_REPLY_ACK 0xFA /* Command ACK */ 53 #define KBD_REPLY_RESEND 0xFE /* Command NACK, send the cmd again */ 54 55 /* Mouse Commands */ 56 #define AUX_SET_SCALE11 0xE6 /* Set 1:1 scaling */ 57 #define AUX_SET_SCALE21 0xE7 /* Set 2:1 scaling */ 58 #define AUX_SET_RES 0xE8 /* Set resolution */ 59 #define AUX_GET_SCALE 0xE9 /* Get scaling factor */ 60 #define AUX_SET_STREAM 0xEA /* Set stream mode */ 61 #define AUX_POLL 0xEB /* Poll */ 62 #define AUX_RESET_WRAP 0xEC /* Reset wrap mode */ 63 #define AUX_SET_WRAP 0xEE /* Set wrap mode */ 64 #define AUX_SET_REMOTE 0xF0 /* Set remote mode */ 65 #define AUX_GET_TYPE 0xF2 /* Get type */ 66 #define AUX_SET_SAMPLE 0xF3 /* Set sample rate */ 67 #define AUX_ENABLE_DEV 0xF4 /* Enable aux device */ 68 #define AUX_DISABLE_DEV 0xF5 /* Disable aux device */ 69 #define AUX_SET_DEFAULT 0xF6 70 #define AUX_RESET 0xFF /* Reset aux device */ 71 #define AUX_ACK 0xFA /* Command byte ACK. */ 72 73 #define MOUSE_STATUS_REMOTE 0x40 74 #define MOUSE_STATUS_ENABLED 0x20 75 #define MOUSE_STATUS_SCALE21 0x10 76 77 /* 78 * PS/2 buffer size. Keep 256 bytes for compatibility with 79 * older QEMU versions. 80 */ 81 #define PS2_BUFFER_SIZE 256 82 #define PS2_QUEUE_SIZE 16 /* Queue size required by PS/2 protocol */ 83 #define PS2_QUEUE_HEADROOM 8 /* Queue size for keyboard command replies */ 84 85 /* Bits for 'modifiers' field in PS2KbdState */ 86 #define MOD_CTRL_L (1 << 0) 87 #define MOD_SHIFT_L (1 << 1) 88 #define MOD_ALT_L (1 << 2) 89 #define MOD_CTRL_R (1 << 3) 90 #define MOD_SHIFT_R (1 << 4) 91 #define MOD_ALT_R (1 << 5) 92 93 typedef struct { 94 uint8_t data[PS2_BUFFER_SIZE]; 95 int rptr, wptr, cwptr, count; 96 } PS2Queue; 97 98 struct PS2State { 99 PS2Queue queue; 100 int32_t write_cmd; 101 void (*update_irq)(void *, int); 102 void *update_arg; 103 }; 104 105 typedef struct { 106 PS2State common; 107 int scan_enabled; 108 int translate; 109 int scancode_set; /* 1=XT, 2=AT, 3=PS/2 */ 110 int ledstate; 111 bool need_high_bit; 112 unsigned int modifiers; /* bitmask of MOD_* constants above */ 113 } PS2KbdState; 114 115 typedef struct { 116 PS2State common; 117 uint8_t mouse_status; 118 uint8_t mouse_resolution; 119 uint8_t mouse_sample_rate; 120 uint8_t mouse_wrap; 121 uint8_t mouse_type; /* 0 = PS2, 3 = IMPS/2, 4 = IMEX */ 122 uint8_t mouse_detect_state; 123 int mouse_dx; /* current values, needed for 'poll' mode */ 124 int mouse_dy; 125 int mouse_dz; 126 int mouse_dw; 127 uint8_t mouse_buttons; 128 } PS2MouseState; 129 130 static uint8_t translate_table[256] = { 131 0xff, 0x43, 0x41, 0x3f, 0x3d, 0x3b, 0x3c, 0x58, 132 0x64, 0x44, 0x42, 0x40, 0x3e, 0x0f, 0x29, 0x59, 133 0x65, 0x38, 0x2a, 0x70, 0x1d, 0x10, 0x02, 0x5a, 134 0x66, 0x71, 0x2c, 0x1f, 0x1e, 0x11, 0x03, 0x5b, 135 0x67, 0x2e, 0x2d, 0x20, 0x12, 0x05, 0x04, 0x5c, 136 0x68, 0x39, 0x2f, 0x21, 0x14, 0x13, 0x06, 0x5d, 137 0x69, 0x31, 0x30, 0x23, 0x22, 0x15, 0x07, 0x5e, 138 0x6a, 0x72, 0x32, 0x24, 0x16, 0x08, 0x09, 0x5f, 139 0x6b, 0x33, 0x25, 0x17, 0x18, 0x0b, 0x0a, 0x60, 140 0x6c, 0x34, 0x35, 0x26, 0x27, 0x19, 0x0c, 0x61, 141 0x6d, 0x73, 0x28, 0x74, 0x1a, 0x0d, 0x62, 0x6e, 142 0x3a, 0x36, 0x1c, 0x1b, 0x75, 0x2b, 0x63, 0x76, 143 0x55, 0x56, 0x77, 0x78, 0x79, 0x7a, 0x0e, 0x7b, 144 0x7c, 0x4f, 0x7d, 0x4b, 0x47, 0x7e, 0x7f, 0x6f, 145 0x52, 0x53, 0x50, 0x4c, 0x4d, 0x48, 0x01, 0x45, 146 0x57, 0x4e, 0x51, 0x4a, 0x37, 0x49, 0x46, 0x54, 147 0x80, 0x81, 0x82, 0x41, 0x54, 0x85, 0x86, 0x87, 148 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, 149 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 150 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, 151 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 152 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, 153 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 154 0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, 155 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 156 0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, 157 0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 158 0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, 159 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 160 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, 161 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 162 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, 163 }; 164 165 static unsigned int ps2_modifier_bit(QKeyCode key) 166 { 167 switch (key) { 168 case Q_KEY_CODE_CTRL: 169 return MOD_CTRL_L; 170 case Q_KEY_CODE_CTRL_R: 171 return MOD_CTRL_R; 172 case Q_KEY_CODE_SHIFT: 173 return MOD_SHIFT_L; 174 case Q_KEY_CODE_SHIFT_R: 175 return MOD_SHIFT_R; 176 case Q_KEY_CODE_ALT: 177 return MOD_ALT_L; 178 case Q_KEY_CODE_ALT_R: 179 return MOD_ALT_R; 180 default: 181 return 0; 182 } 183 } 184 185 static void ps2_reset_queue(PS2State *s) 186 { 187 PS2Queue *q = &s->queue; 188 189 q->rptr = 0; 190 q->wptr = 0; 191 q->cwptr = -1; 192 q->count = 0; 193 } 194 195 int ps2_queue_empty(PS2State *s) 196 { 197 return s->queue.count == 0; 198 } 199 200 void ps2_queue_noirq(PS2State *s, int b) 201 { 202 PS2Queue *q = &s->queue; 203 204 if (q->count >= PS2_QUEUE_SIZE) { 205 return; 206 } 207 208 q->data[q->wptr] = b; 209 if (++q->wptr == PS2_BUFFER_SIZE) { 210 q->wptr = 0; 211 } 212 q->count++; 213 } 214 215 void ps2_raise_irq(PS2State *s) 216 { 217 s->update_irq(s->update_arg, 1); 218 } 219 220 void ps2_queue(PS2State *s, int b) 221 { 222 if (PS2_QUEUE_SIZE - s->queue.count < 1) { 223 return; 224 } 225 226 ps2_queue_noirq(s, b); 227 ps2_raise_irq(s); 228 } 229 230 void ps2_queue_2(PS2State *s, int b1, int b2) 231 { 232 if (PS2_QUEUE_SIZE - s->queue.count < 2) { 233 return; 234 } 235 236 ps2_queue_noirq(s, b1); 237 ps2_queue_noirq(s, b2); 238 ps2_raise_irq(s); 239 } 240 241 void ps2_queue_3(PS2State *s, int b1, int b2, int b3) 242 { 243 if (PS2_QUEUE_SIZE - s->queue.count < 3) { 244 return; 245 } 246 247 ps2_queue_noirq(s, b1); 248 ps2_queue_noirq(s, b2); 249 ps2_queue_noirq(s, b3); 250 ps2_raise_irq(s); 251 } 252 253 void ps2_queue_4(PS2State *s, int b1, int b2, int b3, int b4) 254 { 255 if (PS2_QUEUE_SIZE - s->queue.count < 4) { 256 return; 257 } 258 259 ps2_queue_noirq(s, b1); 260 ps2_queue_noirq(s, b2); 261 ps2_queue_noirq(s, b3); 262 ps2_queue_noirq(s, b4); 263 ps2_raise_irq(s); 264 } 265 266 static void ps2_cqueue_data(PS2Queue *q, int b) 267 { 268 q->data[q->cwptr] = b; 269 if (++q->cwptr >= PS2_BUFFER_SIZE) { 270 q->cwptr = 0; 271 } 272 q->count++; 273 } 274 275 static void ps2_cqueue_1(PS2State *s, int b1) 276 { 277 PS2Queue *q = &s->queue; 278 279 q->rptr = (q->rptr - 1) & (PS2_BUFFER_SIZE - 1); 280 q->cwptr = q->rptr; 281 ps2_cqueue_data(q, b1); 282 ps2_raise_irq(s); 283 } 284 285 static void ps2_cqueue_2(PS2State *s, int b1, int b2) 286 { 287 PS2Queue *q = &s->queue; 288 289 q->rptr = (q->rptr - 2) & (PS2_BUFFER_SIZE - 1); 290 q->cwptr = q->rptr; 291 ps2_cqueue_data(q, b1); 292 ps2_cqueue_data(q, b2); 293 ps2_raise_irq(s); 294 } 295 296 static void ps2_cqueue_3(PS2State *s, int b1, int b2, int b3) 297 { 298 PS2Queue *q = &s->queue; 299 300 q->rptr = (q->rptr - 3) & (PS2_BUFFER_SIZE - 1); 301 q->cwptr = q->rptr; 302 ps2_cqueue_data(q, b1); 303 ps2_cqueue_data(q, b2); 304 ps2_cqueue_data(q, b3); 305 ps2_raise_irq(s); 306 } 307 308 static void ps2_cqueue_reset(PS2State *s) 309 { 310 PS2Queue *q = &s->queue; 311 int ccount; 312 313 if (q->cwptr == -1) { 314 return; 315 } 316 317 ccount = (q->cwptr - q->rptr) & (PS2_BUFFER_SIZE - 1); 318 q->count -= ccount; 319 q->rptr = q->cwptr; 320 q->cwptr = -1; 321 } 322 323 /* keycode is the untranslated scancode in the current scancode set. */ 324 static void ps2_put_keycode(void *opaque, int keycode) 325 { 326 PS2KbdState *s = opaque; 327 328 trace_ps2_put_keycode(opaque, keycode); 329 qemu_system_wakeup_request(QEMU_WAKEUP_REASON_OTHER, NULL); 330 331 if (s->translate) { 332 if (keycode == 0xf0) { 333 s->need_high_bit = true; 334 } else if (s->need_high_bit) { 335 ps2_queue(&s->common, translate_table[keycode] | 0x80); 336 s->need_high_bit = false; 337 } else { 338 ps2_queue(&s->common, translate_table[keycode]); 339 } 340 } else { 341 ps2_queue(&s->common, keycode); 342 } 343 } 344 345 static void ps2_keyboard_event(DeviceState *dev, QemuConsole *src, 346 InputEvent *evt) 347 { 348 PS2KbdState *s = (PS2KbdState *)dev; 349 InputKeyEvent *key = evt->u.key.data; 350 int qcode; 351 uint16_t keycode = 0; 352 int mod; 353 354 /* do not process events while disabled to prevent stream corruption */ 355 if (!s->scan_enabled) { 356 return; 357 } 358 359 qemu_system_wakeup_request(QEMU_WAKEUP_REASON_OTHER, NULL); 360 assert(evt->type == INPUT_EVENT_KIND_KEY); 361 qcode = qemu_input_key_value_to_qcode(key->key); 362 363 mod = ps2_modifier_bit(qcode); 364 trace_ps2_keyboard_event(s, qcode, key->down, mod, 365 s->modifiers, s->scancode_set, s->translate); 366 if (key->down) { 367 s->modifiers |= mod; 368 } else { 369 s->modifiers &= ~mod; 370 } 371 372 if (s->scancode_set == 1) { 373 if (qcode == Q_KEY_CODE_PAUSE) { 374 if (s->modifiers & (MOD_CTRL_L | MOD_CTRL_R)) { 375 if (key->down) { 376 ps2_put_keycode(s, 0xe0); 377 ps2_put_keycode(s, 0x46); 378 ps2_put_keycode(s, 0xe0); 379 ps2_put_keycode(s, 0xc6); 380 } 381 } else { 382 if (key->down) { 383 ps2_put_keycode(s, 0xe1); 384 ps2_put_keycode(s, 0x1d); 385 ps2_put_keycode(s, 0x45); 386 ps2_put_keycode(s, 0xe1); 387 ps2_put_keycode(s, 0x9d); 388 ps2_put_keycode(s, 0xc5); 389 } 390 } 391 } else if (qcode == Q_KEY_CODE_PRINT) { 392 if (s->modifiers & MOD_ALT_L) { 393 if (key->down) { 394 ps2_put_keycode(s, 0xb8); 395 ps2_put_keycode(s, 0x38); 396 ps2_put_keycode(s, 0x54); 397 } else { 398 ps2_put_keycode(s, 0xd4); 399 ps2_put_keycode(s, 0xb8); 400 ps2_put_keycode(s, 0x38); 401 } 402 } else if (s->modifiers & MOD_ALT_R) { 403 if (key->down) { 404 ps2_put_keycode(s, 0xe0); 405 ps2_put_keycode(s, 0xb8); 406 ps2_put_keycode(s, 0xe0); 407 ps2_put_keycode(s, 0x38); 408 ps2_put_keycode(s, 0x54); 409 } else { 410 ps2_put_keycode(s, 0xd4); 411 ps2_put_keycode(s, 0xe0); 412 ps2_put_keycode(s, 0xb8); 413 ps2_put_keycode(s, 0xe0); 414 ps2_put_keycode(s, 0x38); 415 } 416 } else if (s->modifiers & (MOD_SHIFT_L | MOD_CTRL_L | 417 MOD_SHIFT_R | MOD_CTRL_R)) { 418 if (key->down) { 419 ps2_put_keycode(s, 0xe0); 420 ps2_put_keycode(s, 0x37); 421 } else { 422 ps2_put_keycode(s, 0xe0); 423 ps2_put_keycode(s, 0xb7); 424 } 425 } else { 426 if (key->down) { 427 ps2_put_keycode(s, 0xe0); 428 ps2_put_keycode(s, 0x2a); 429 ps2_put_keycode(s, 0xe0); 430 ps2_put_keycode(s, 0x37); 431 } else { 432 ps2_put_keycode(s, 0xe0); 433 ps2_put_keycode(s, 0xb7); 434 ps2_put_keycode(s, 0xe0); 435 ps2_put_keycode(s, 0xaa); 436 } 437 } 438 } else { 439 if (qcode < qemu_input_map_qcode_to_atset1_len) 440 keycode = qemu_input_map_qcode_to_atset1[qcode]; 441 if (keycode) { 442 if (keycode & 0xff00) { 443 ps2_put_keycode(s, keycode >> 8); 444 } 445 if (!key->down) { 446 keycode |= 0x80; 447 } 448 ps2_put_keycode(s, keycode & 0xff); 449 } else { 450 qemu_log_mask(LOG_UNIMP, 451 "ps2: ignoring key with qcode %d\n", qcode); 452 } 453 } 454 } else if (s->scancode_set == 2) { 455 if (qcode == Q_KEY_CODE_PAUSE) { 456 if (s->modifiers & (MOD_CTRL_L | MOD_CTRL_R)) { 457 if (key->down) { 458 ps2_put_keycode(s, 0xe0); 459 ps2_put_keycode(s, 0x7e); 460 ps2_put_keycode(s, 0xe0); 461 ps2_put_keycode(s, 0xf0); 462 ps2_put_keycode(s, 0x7e); 463 } 464 } else { 465 if (key->down) { 466 ps2_put_keycode(s, 0xe1); 467 ps2_put_keycode(s, 0x14); 468 ps2_put_keycode(s, 0x77); 469 ps2_put_keycode(s, 0xe1); 470 ps2_put_keycode(s, 0xf0); 471 ps2_put_keycode(s, 0x14); 472 ps2_put_keycode(s, 0xf0); 473 ps2_put_keycode(s, 0x77); 474 } 475 } 476 } else if (qcode == Q_KEY_CODE_PRINT) { 477 if (s->modifiers & MOD_ALT_L) { 478 if (key->down) { 479 ps2_put_keycode(s, 0xf0); 480 ps2_put_keycode(s, 0x11); 481 ps2_put_keycode(s, 0x11); 482 ps2_put_keycode(s, 0x84); 483 } else { 484 ps2_put_keycode(s, 0xf0); 485 ps2_put_keycode(s, 0x84); 486 ps2_put_keycode(s, 0xf0); 487 ps2_put_keycode(s, 0x11); 488 ps2_put_keycode(s, 0x11); 489 } 490 } else if (s->modifiers & MOD_ALT_R) { 491 if (key->down) { 492 ps2_put_keycode(s, 0xe0); 493 ps2_put_keycode(s, 0xf0); 494 ps2_put_keycode(s, 0x11); 495 ps2_put_keycode(s, 0xe0); 496 ps2_put_keycode(s, 0x11); 497 ps2_put_keycode(s, 0x84); 498 } else { 499 ps2_put_keycode(s, 0xf0); 500 ps2_put_keycode(s, 0x84); 501 ps2_put_keycode(s, 0xe0); 502 ps2_put_keycode(s, 0xf0); 503 ps2_put_keycode(s, 0x11); 504 ps2_put_keycode(s, 0xe0); 505 ps2_put_keycode(s, 0x11); 506 } 507 } else if (s->modifiers & (MOD_SHIFT_L | MOD_CTRL_L | 508 MOD_SHIFT_R | MOD_CTRL_R)) { 509 if (key->down) { 510 ps2_put_keycode(s, 0xe0); 511 ps2_put_keycode(s, 0x7c); 512 } else { 513 ps2_put_keycode(s, 0xe0); 514 ps2_put_keycode(s, 0xf0); 515 ps2_put_keycode(s, 0x7c); 516 } 517 } else { 518 if (key->down) { 519 ps2_put_keycode(s, 0xe0); 520 ps2_put_keycode(s, 0x12); 521 ps2_put_keycode(s, 0xe0); 522 ps2_put_keycode(s, 0x7c); 523 } else { 524 ps2_put_keycode(s, 0xe0); 525 ps2_put_keycode(s, 0xf0); 526 ps2_put_keycode(s, 0x7c); 527 ps2_put_keycode(s, 0xe0); 528 ps2_put_keycode(s, 0xf0); 529 ps2_put_keycode(s, 0x12); 530 } 531 } 532 } else { 533 if (qcode < qemu_input_map_qcode_to_atset2_len) 534 keycode = qemu_input_map_qcode_to_atset2[qcode]; 535 if (keycode) { 536 if (keycode & 0xff00) { 537 ps2_put_keycode(s, keycode >> 8); 538 } 539 if (!key->down) { 540 ps2_put_keycode(s, 0xf0); 541 } 542 ps2_put_keycode(s, keycode & 0xff); 543 } else { 544 qemu_log_mask(LOG_UNIMP, 545 "ps2: ignoring key with qcode %d\n", qcode); 546 } 547 } 548 } else if (s->scancode_set == 3) { 549 if (qcode < qemu_input_map_qcode_to_atset3_len) 550 keycode = qemu_input_map_qcode_to_atset3[qcode]; 551 if (keycode) { 552 /* FIXME: break code should be configured on a key by key basis */ 553 if (!key->down) { 554 ps2_put_keycode(s, 0xf0); 555 } 556 ps2_put_keycode(s, keycode); 557 } else { 558 qemu_log_mask(LOG_UNIMP, 559 "ps2: ignoring key with qcode %d\n", qcode); 560 } 561 } 562 } 563 564 uint32_t ps2_read_data(PS2State *s) 565 { 566 PS2Queue *q; 567 int val, index; 568 569 trace_ps2_read_data(s); 570 q = &s->queue; 571 if (q->count == 0) { 572 /* NOTE: if no data left, we return the last keyboard one 573 (needed for EMM386) */ 574 /* XXX: need a timer to do things correctly */ 575 index = q->rptr - 1; 576 if (index < 0) { 577 index = PS2_BUFFER_SIZE - 1; 578 } 579 val = q->data[index]; 580 } else { 581 val = q->data[q->rptr]; 582 if (++q->rptr == PS2_BUFFER_SIZE) { 583 q->rptr = 0; 584 } 585 q->count--; 586 if (q->rptr == q->cwptr) { 587 /* command reply queue is empty */ 588 q->cwptr = -1; 589 } 590 /* reading deasserts IRQ */ 591 s->update_irq(s->update_arg, 0); 592 /* reassert IRQs if data left */ 593 if (q->count) { 594 s->update_irq(s->update_arg, 1); 595 } 596 } 597 return val; 598 } 599 600 static void ps2_set_ledstate(PS2KbdState *s, int ledstate) 601 { 602 trace_ps2_set_ledstate(s, ledstate); 603 s->ledstate = ledstate; 604 kbd_put_ledstate(ledstate); 605 } 606 607 static void ps2_reset_keyboard(PS2KbdState *s) 608 { 609 trace_ps2_reset_keyboard(s); 610 s->scan_enabled = 1; 611 s->scancode_set = 2; 612 ps2_reset_queue(&s->common); 613 ps2_set_ledstate(s, 0); 614 } 615 616 void ps2_write_keyboard(void *opaque, int val) 617 { 618 PS2KbdState *s = (PS2KbdState *)opaque; 619 620 trace_ps2_write_keyboard(opaque, val); 621 ps2_cqueue_reset(&s->common); 622 switch(s->common.write_cmd) { 623 default: 624 case -1: 625 switch(val) { 626 case 0x00: 627 ps2_cqueue_1(&s->common, KBD_REPLY_ACK); 628 break; 629 case 0x05: 630 ps2_cqueue_1(&s->common, KBD_REPLY_RESEND); 631 break; 632 case KBD_CMD_GET_ID: 633 /* We emulate a MF2 AT keyboard here */ 634 ps2_cqueue_3(&s->common, KBD_REPLY_ACK, KBD_REPLY_ID, 635 s->translate ? 0x41 : 0x83); 636 break; 637 case KBD_CMD_ECHO: 638 ps2_cqueue_1(&s->common, KBD_CMD_ECHO); 639 break; 640 case KBD_CMD_ENABLE: 641 s->scan_enabled = 1; 642 ps2_cqueue_1(&s->common, KBD_REPLY_ACK); 643 break; 644 case KBD_CMD_SCANCODE: 645 case KBD_CMD_SET_LEDS: 646 case KBD_CMD_SET_RATE: 647 case KBD_CMD_SET_MAKE_BREAK: 648 s->common.write_cmd = val; 649 ps2_cqueue_1(&s->common, KBD_REPLY_ACK); 650 break; 651 case KBD_CMD_RESET_DISABLE: 652 ps2_reset_keyboard(s); 653 s->scan_enabled = 0; 654 ps2_cqueue_1(&s->common, KBD_REPLY_ACK); 655 break; 656 case KBD_CMD_RESET_ENABLE: 657 ps2_reset_keyboard(s); 658 s->scan_enabled = 1; 659 ps2_cqueue_1(&s->common, KBD_REPLY_ACK); 660 break; 661 case KBD_CMD_RESET: 662 ps2_reset_keyboard(s); 663 ps2_cqueue_2(&s->common, 664 KBD_REPLY_ACK, 665 KBD_REPLY_POR); 666 break; 667 case KBD_CMD_SET_TYPEMATIC: 668 ps2_cqueue_1(&s->common, KBD_REPLY_ACK); 669 break; 670 default: 671 ps2_cqueue_1(&s->common, KBD_REPLY_RESEND); 672 break; 673 } 674 break; 675 case KBD_CMD_SET_MAKE_BREAK: 676 ps2_cqueue_1(&s->common, KBD_REPLY_ACK); 677 s->common.write_cmd = -1; 678 break; 679 case KBD_CMD_SCANCODE: 680 if (val == 0) { 681 ps2_cqueue_2(&s->common, KBD_REPLY_ACK, s->translate ? 682 translate_table[s->scancode_set] : s->scancode_set); 683 } else if (val >= 1 && val <= 3) { 684 s->scancode_set = val; 685 ps2_cqueue_1(&s->common, KBD_REPLY_ACK); 686 } else { 687 ps2_cqueue_1(&s->common, KBD_REPLY_RESEND); 688 } 689 s->common.write_cmd = -1; 690 break; 691 case KBD_CMD_SET_LEDS: 692 ps2_set_ledstate(s, val); 693 ps2_cqueue_1(&s->common, KBD_REPLY_ACK); 694 s->common.write_cmd = -1; 695 break; 696 case KBD_CMD_SET_RATE: 697 ps2_cqueue_1(&s->common, KBD_REPLY_ACK); 698 s->common.write_cmd = -1; 699 break; 700 } 701 } 702 703 /* Set the scancode translation mode. 704 0 = raw scancodes. 705 1 = translated scancodes (used by qemu internally). */ 706 707 void ps2_keyboard_set_translation(void *opaque, int mode) 708 { 709 PS2KbdState *s = (PS2KbdState *)opaque; 710 trace_ps2_keyboard_set_translation(opaque, mode); 711 s->translate = mode; 712 } 713 714 static int ps2_mouse_send_packet(PS2MouseState *s) 715 { 716 /* IMPS/2 and IMEX send 4 bytes, PS2 sends 3 bytes */ 717 const int needed = s->mouse_type ? 4 : 3; 718 unsigned int b; 719 int dx1, dy1, dz1, dw1; 720 721 if (PS2_QUEUE_SIZE - s->common.queue.count < needed) { 722 return 0; 723 } 724 725 dx1 = s->mouse_dx; 726 dy1 = s->mouse_dy; 727 dz1 = s->mouse_dz; 728 dw1 = s->mouse_dw; 729 /* XXX: increase range to 8 bits ? */ 730 if (dx1 > 127) 731 dx1 = 127; 732 else if (dx1 < -127) 733 dx1 = -127; 734 if (dy1 > 127) 735 dy1 = 127; 736 else if (dy1 < -127) 737 dy1 = -127; 738 b = 0x08 | ((dx1 < 0) << 4) | ((dy1 < 0) << 5) | (s->mouse_buttons & 0x07); 739 ps2_queue_noirq(&s->common, b); 740 ps2_queue_noirq(&s->common, dx1 & 0xff); 741 ps2_queue_noirq(&s->common, dy1 & 0xff); 742 /* extra byte for IMPS/2 or IMEX */ 743 switch(s->mouse_type) { 744 default: 745 /* Just ignore the wheels if not supported */ 746 s->mouse_dz = 0; 747 s->mouse_dw = 0; 748 break; 749 case 3: 750 if (dz1 > 127) 751 dz1 = 127; 752 else if (dz1 < -127) 753 dz1 = -127; 754 ps2_queue_noirq(&s->common, dz1 & 0xff); 755 s->mouse_dz -= dz1; 756 s->mouse_dw = 0; 757 break; 758 case 4: 759 /* 760 * This matches what the Linux kernel expects for exps/2 in 761 * drivers/input/mouse/psmouse-base.c. Note, if you happen to 762 * press/release the 4th or 5th buttons at the same moment as a 763 * horizontal wheel scroll, those button presses will get lost. I'm not 764 * sure what to do about that, since by this point we don't know 765 * whether those buttons actually changed state. 766 */ 767 if (dw1 != 0) { 768 if (dw1 > 31) { 769 dw1 = 31; 770 } else if (dw1 < -31) { 771 dw1 = -31; 772 } 773 774 /* 775 * linux kernel expects first 6 bits to represent the value 776 * for horizontal scroll 777 */ 778 b = (dw1 & 0x3f) | 0x40; 779 s->mouse_dw -= dw1; 780 } else { 781 if (dz1 > 7) { 782 dz1 = 7; 783 } else if (dz1 < -7) { 784 dz1 = -7; 785 } 786 787 b = (dz1 & 0x0f) | ((s->mouse_buttons & 0x18) << 1); 788 s->mouse_dz -= dz1; 789 } 790 ps2_queue_noirq(&s->common, b); 791 break; 792 } 793 794 ps2_raise_irq(&s->common); 795 796 trace_ps2_mouse_send_packet(s, dx1, dy1, dz1, b); 797 /* update deltas */ 798 s->mouse_dx -= dx1; 799 s->mouse_dy -= dy1; 800 801 return 1; 802 } 803 804 static void ps2_mouse_event(DeviceState *dev, QemuConsole *src, 805 InputEvent *evt) 806 { 807 static const int bmap[INPUT_BUTTON__MAX] = { 808 [INPUT_BUTTON_LEFT] = PS2_MOUSE_BUTTON_LEFT, 809 [INPUT_BUTTON_MIDDLE] = PS2_MOUSE_BUTTON_MIDDLE, 810 [INPUT_BUTTON_RIGHT] = PS2_MOUSE_BUTTON_RIGHT, 811 [INPUT_BUTTON_SIDE] = PS2_MOUSE_BUTTON_SIDE, 812 [INPUT_BUTTON_EXTRA] = PS2_MOUSE_BUTTON_EXTRA, 813 }; 814 PS2MouseState *s = (PS2MouseState *)dev; 815 InputMoveEvent *move; 816 InputBtnEvent *btn; 817 818 /* check if deltas are recorded when disabled */ 819 if (!(s->mouse_status & MOUSE_STATUS_ENABLED)) 820 return; 821 822 switch (evt->type) { 823 case INPUT_EVENT_KIND_REL: 824 move = evt->u.rel.data; 825 if (move->axis == INPUT_AXIS_X) { 826 s->mouse_dx += move->value; 827 } else if (move->axis == INPUT_AXIS_Y) { 828 s->mouse_dy -= move->value; 829 } 830 break; 831 832 case INPUT_EVENT_KIND_BTN: 833 btn = evt->u.btn.data; 834 if (btn->down) { 835 s->mouse_buttons |= bmap[btn->button]; 836 if (btn->button == INPUT_BUTTON_WHEEL_UP) { 837 s->mouse_dz--; 838 } else if (btn->button == INPUT_BUTTON_WHEEL_DOWN) { 839 s->mouse_dz++; 840 } 841 842 if (btn->button == INPUT_BUTTON_WHEEL_RIGHT) { 843 s->mouse_dw--; 844 } else if (btn->button == INPUT_BUTTON_WHEEL_LEFT) { 845 s->mouse_dw++; 846 } 847 } else { 848 s->mouse_buttons &= ~bmap[btn->button]; 849 } 850 break; 851 852 default: 853 /* keep gcc happy */ 854 break; 855 } 856 } 857 858 static void ps2_mouse_sync(DeviceState *dev) 859 { 860 PS2MouseState *s = (PS2MouseState *)dev; 861 862 /* do not sync while disabled to prevent stream corruption */ 863 if (!(s->mouse_status & MOUSE_STATUS_ENABLED)) { 864 return; 865 } 866 867 if (s->mouse_buttons) { 868 qemu_system_wakeup_request(QEMU_WAKEUP_REASON_OTHER, NULL); 869 } 870 if (!(s->mouse_status & MOUSE_STATUS_REMOTE)) { 871 /* if not remote, send event. Multiple events are sent if 872 too big deltas */ 873 while (ps2_mouse_send_packet(s)) { 874 if (s->mouse_dx == 0 && s->mouse_dy == 0 875 && s->mouse_dz == 0 && s->mouse_dw == 0) { 876 break; 877 } 878 } 879 } 880 } 881 882 void ps2_mouse_fake_event(void *opaque) 883 { 884 PS2MouseState *s = opaque; 885 trace_ps2_mouse_fake_event(opaque); 886 s->mouse_dx++; 887 ps2_mouse_sync(opaque); 888 } 889 890 void ps2_write_mouse(void *opaque, int val) 891 { 892 PS2MouseState *s = (PS2MouseState *)opaque; 893 894 trace_ps2_write_mouse(opaque, val); 895 switch(s->common.write_cmd) { 896 default: 897 case -1: 898 /* mouse command */ 899 if (s->mouse_wrap) { 900 if (val == AUX_RESET_WRAP) { 901 s->mouse_wrap = 0; 902 ps2_queue(&s->common, AUX_ACK); 903 return; 904 } else if (val != AUX_RESET) { 905 ps2_queue(&s->common, val); 906 return; 907 } 908 } 909 switch(val) { 910 case AUX_SET_SCALE11: 911 s->mouse_status &= ~MOUSE_STATUS_SCALE21; 912 ps2_queue(&s->common, AUX_ACK); 913 break; 914 case AUX_SET_SCALE21: 915 s->mouse_status |= MOUSE_STATUS_SCALE21; 916 ps2_queue(&s->common, AUX_ACK); 917 break; 918 case AUX_SET_STREAM: 919 s->mouse_status &= ~MOUSE_STATUS_REMOTE; 920 ps2_queue(&s->common, AUX_ACK); 921 break; 922 case AUX_SET_WRAP: 923 s->mouse_wrap = 1; 924 ps2_queue(&s->common, AUX_ACK); 925 break; 926 case AUX_SET_REMOTE: 927 s->mouse_status |= MOUSE_STATUS_REMOTE; 928 ps2_queue(&s->common, AUX_ACK); 929 break; 930 case AUX_GET_TYPE: 931 ps2_queue_2(&s->common, 932 AUX_ACK, 933 s->mouse_type); 934 break; 935 case AUX_SET_RES: 936 case AUX_SET_SAMPLE: 937 s->common.write_cmd = val; 938 ps2_queue(&s->common, AUX_ACK); 939 break; 940 case AUX_GET_SCALE: 941 ps2_queue_4(&s->common, 942 AUX_ACK, 943 s->mouse_status, 944 s->mouse_resolution, 945 s->mouse_sample_rate); 946 break; 947 case AUX_POLL: 948 ps2_queue(&s->common, AUX_ACK); 949 ps2_mouse_send_packet(s); 950 break; 951 case AUX_ENABLE_DEV: 952 s->mouse_status |= MOUSE_STATUS_ENABLED; 953 ps2_queue(&s->common, AUX_ACK); 954 break; 955 case AUX_DISABLE_DEV: 956 s->mouse_status &= ~MOUSE_STATUS_ENABLED; 957 ps2_queue(&s->common, AUX_ACK); 958 break; 959 case AUX_SET_DEFAULT: 960 s->mouse_sample_rate = 100; 961 s->mouse_resolution = 2; 962 s->mouse_status = 0; 963 ps2_queue(&s->common, AUX_ACK); 964 break; 965 case AUX_RESET: 966 s->mouse_sample_rate = 100; 967 s->mouse_resolution = 2; 968 s->mouse_status = 0; 969 s->mouse_type = 0; 970 ps2_reset_queue(&s->common); 971 ps2_queue_3(&s->common, 972 AUX_ACK, 973 0xaa, 974 s->mouse_type); 975 break; 976 default: 977 break; 978 } 979 break; 980 case AUX_SET_SAMPLE: 981 s->mouse_sample_rate = val; 982 /* detect IMPS/2 or IMEX */ 983 switch(s->mouse_detect_state) { 984 default: 985 case 0: 986 if (val == 200) 987 s->mouse_detect_state = 1; 988 break; 989 case 1: 990 if (val == 100) 991 s->mouse_detect_state = 2; 992 else if (val == 200) 993 s->mouse_detect_state = 3; 994 else 995 s->mouse_detect_state = 0; 996 break; 997 case 2: 998 if (val == 80) 999 s->mouse_type = 3; /* IMPS/2 */ 1000 s->mouse_detect_state = 0; 1001 break; 1002 case 3: 1003 if (val == 80) 1004 s->mouse_type = 4; /* IMEX */ 1005 s->mouse_detect_state = 0; 1006 break; 1007 } 1008 ps2_queue(&s->common, AUX_ACK); 1009 s->common.write_cmd = -1; 1010 break; 1011 case AUX_SET_RES: 1012 s->mouse_resolution = val; 1013 ps2_queue(&s->common, AUX_ACK); 1014 s->common.write_cmd = -1; 1015 break; 1016 } 1017 } 1018 1019 static void ps2_common_reset(PS2State *s) 1020 { 1021 s->write_cmd = -1; 1022 ps2_reset_queue(s); 1023 s->update_irq(s->update_arg, 0); 1024 } 1025 1026 static void ps2_common_post_load(PS2State *s) 1027 { 1028 PS2Queue *q = &s->queue; 1029 int ccount = 0; 1030 1031 /* limit the number of queued command replies to PS2_QUEUE_HEADROOM */ 1032 if (q->cwptr != -1) { 1033 ccount = (q->cwptr - q->rptr) & (PS2_BUFFER_SIZE - 1); 1034 if (ccount > PS2_QUEUE_HEADROOM) { 1035 ccount = PS2_QUEUE_HEADROOM; 1036 } 1037 } 1038 1039 /* limit the scancode queue size to PS2_QUEUE_SIZE */ 1040 if (q->count < ccount) { 1041 q->count = ccount; 1042 } else if (q->count > ccount + PS2_QUEUE_SIZE) { 1043 q->count = ccount + PS2_QUEUE_SIZE; 1044 } 1045 1046 /* sanitize rptr and recalculate wptr and cwptr */ 1047 q->rptr = q->rptr & (PS2_BUFFER_SIZE - 1); 1048 q->wptr = (q->rptr + q->count) & (PS2_BUFFER_SIZE - 1); 1049 q->cwptr = ccount ? (q->rptr + ccount) & (PS2_BUFFER_SIZE - 1) : -1; 1050 } 1051 1052 static void ps2_kbd_reset(void *opaque) 1053 { 1054 PS2KbdState *s = (PS2KbdState *) opaque; 1055 1056 trace_ps2_kbd_reset(opaque); 1057 ps2_common_reset(&s->common); 1058 s->scan_enabled = 1; 1059 s->translate = 0; 1060 s->scancode_set = 2; 1061 s->modifiers = 0; 1062 } 1063 1064 static void ps2_mouse_reset(void *opaque) 1065 { 1066 PS2MouseState *s = (PS2MouseState *) opaque; 1067 1068 trace_ps2_mouse_reset(opaque); 1069 ps2_common_reset(&s->common); 1070 s->mouse_status = 0; 1071 s->mouse_resolution = 0; 1072 s->mouse_sample_rate = 0; 1073 s->mouse_wrap = 0; 1074 s->mouse_type = 0; 1075 s->mouse_detect_state = 0; 1076 s->mouse_dx = 0; 1077 s->mouse_dy = 0; 1078 s->mouse_dz = 0; 1079 s->mouse_dw = 0; 1080 s->mouse_buttons = 0; 1081 } 1082 1083 static const VMStateDescription vmstate_ps2_common = { 1084 .name = "PS2 Common State", 1085 .version_id = 3, 1086 .minimum_version_id = 2, 1087 .fields = (VMStateField[]) { 1088 VMSTATE_INT32(write_cmd, PS2State), 1089 VMSTATE_INT32(queue.rptr, PS2State), 1090 VMSTATE_INT32(queue.wptr, PS2State), 1091 VMSTATE_INT32(queue.count, PS2State), 1092 VMSTATE_BUFFER(queue.data, PS2State), 1093 VMSTATE_END_OF_LIST() 1094 } 1095 }; 1096 1097 static bool ps2_keyboard_ledstate_needed(void *opaque) 1098 { 1099 PS2KbdState *s = opaque; 1100 1101 return s->ledstate != 0; /* 0 is default state */ 1102 } 1103 1104 static int ps2_kbd_ledstate_post_load(void *opaque, int version_id) 1105 { 1106 PS2KbdState *s = opaque; 1107 1108 kbd_put_ledstate(s->ledstate); 1109 return 0; 1110 } 1111 1112 static const VMStateDescription vmstate_ps2_keyboard_ledstate = { 1113 .name = "ps2kbd/ledstate", 1114 .version_id = 3, 1115 .minimum_version_id = 2, 1116 .post_load = ps2_kbd_ledstate_post_load, 1117 .needed = ps2_keyboard_ledstate_needed, 1118 .fields = (VMStateField[]) { 1119 VMSTATE_INT32(ledstate, PS2KbdState), 1120 VMSTATE_END_OF_LIST() 1121 } 1122 }; 1123 1124 static bool ps2_keyboard_need_high_bit_needed(void *opaque) 1125 { 1126 PS2KbdState *s = opaque; 1127 return s->need_high_bit != 0; /* 0 is the usual state */ 1128 } 1129 1130 static const VMStateDescription vmstate_ps2_keyboard_need_high_bit = { 1131 .name = "ps2kbd/need_high_bit", 1132 .version_id = 1, 1133 .minimum_version_id = 1, 1134 .needed = ps2_keyboard_need_high_bit_needed, 1135 .fields = (VMStateField[]) { 1136 VMSTATE_BOOL(need_high_bit, PS2KbdState), 1137 VMSTATE_END_OF_LIST() 1138 } 1139 }; 1140 1141 static bool ps2_keyboard_cqueue_needed(void *opaque) 1142 { 1143 PS2KbdState *s = opaque; 1144 1145 return s->common.queue.cwptr != -1; /* the queue is mostly empty */ 1146 } 1147 1148 static const VMStateDescription vmstate_ps2_keyboard_cqueue = { 1149 .name = "ps2kbd/command_reply_queue", 1150 .needed = ps2_keyboard_cqueue_needed, 1151 .fields = (VMStateField[]) { 1152 VMSTATE_INT32(common.queue.cwptr, PS2KbdState), 1153 VMSTATE_END_OF_LIST() 1154 } 1155 }; 1156 1157 static int ps2_kbd_post_load(void* opaque, int version_id) 1158 { 1159 PS2KbdState *s = (PS2KbdState*)opaque; 1160 PS2State *ps2 = &s->common; 1161 1162 if (version_id == 2) 1163 s->scancode_set=2; 1164 1165 ps2_common_post_load(ps2); 1166 1167 return 0; 1168 } 1169 1170 static const VMStateDescription vmstate_ps2_keyboard = { 1171 .name = "ps2kbd", 1172 .version_id = 3, 1173 .minimum_version_id = 2, 1174 .post_load = ps2_kbd_post_load, 1175 .fields = (VMStateField[]) { 1176 VMSTATE_STRUCT(common, PS2KbdState, 0, vmstate_ps2_common, PS2State), 1177 VMSTATE_INT32(scan_enabled, PS2KbdState), 1178 VMSTATE_INT32(translate, PS2KbdState), 1179 VMSTATE_INT32_V(scancode_set, PS2KbdState,3), 1180 VMSTATE_END_OF_LIST() 1181 }, 1182 .subsections = (const VMStateDescription*[]) { 1183 &vmstate_ps2_keyboard_ledstate, 1184 &vmstate_ps2_keyboard_need_high_bit, 1185 &vmstate_ps2_keyboard_cqueue, 1186 NULL 1187 } 1188 }; 1189 1190 static int ps2_mouse_post_load(void *opaque, int version_id) 1191 { 1192 PS2MouseState *s = (PS2MouseState *)opaque; 1193 PS2State *ps2 = &s->common; 1194 1195 ps2_common_post_load(ps2); 1196 1197 return 0; 1198 } 1199 1200 static const VMStateDescription vmstate_ps2_mouse = { 1201 .name = "ps2mouse", 1202 .version_id = 2, 1203 .minimum_version_id = 2, 1204 .post_load = ps2_mouse_post_load, 1205 .fields = (VMStateField[]) { 1206 VMSTATE_STRUCT(common, PS2MouseState, 0, vmstate_ps2_common, PS2State), 1207 VMSTATE_UINT8(mouse_status, PS2MouseState), 1208 VMSTATE_UINT8(mouse_resolution, PS2MouseState), 1209 VMSTATE_UINT8(mouse_sample_rate, PS2MouseState), 1210 VMSTATE_UINT8(mouse_wrap, PS2MouseState), 1211 VMSTATE_UINT8(mouse_type, PS2MouseState), 1212 VMSTATE_UINT8(mouse_detect_state, PS2MouseState), 1213 VMSTATE_INT32(mouse_dx, PS2MouseState), 1214 VMSTATE_INT32(mouse_dy, PS2MouseState), 1215 VMSTATE_INT32(mouse_dz, PS2MouseState), 1216 VMSTATE_UINT8(mouse_buttons, PS2MouseState), 1217 VMSTATE_END_OF_LIST() 1218 } 1219 }; 1220 1221 static QemuInputHandler ps2_keyboard_handler = { 1222 .name = "QEMU PS/2 Keyboard", 1223 .mask = INPUT_EVENT_MASK_KEY, 1224 .event = ps2_keyboard_event, 1225 }; 1226 1227 void *ps2_kbd_init(void (*update_irq)(void *, int), void *update_arg) 1228 { 1229 PS2KbdState *s = (PS2KbdState *)g_malloc0(sizeof(PS2KbdState)); 1230 1231 trace_ps2_kbd_init(s); 1232 s->common.update_irq = update_irq; 1233 s->common.update_arg = update_arg; 1234 s->scancode_set = 2; 1235 vmstate_register(NULL, 0, &vmstate_ps2_keyboard, s); 1236 qemu_input_handler_register((DeviceState *)s, 1237 &ps2_keyboard_handler); 1238 qemu_register_reset(ps2_kbd_reset, s); 1239 return s; 1240 } 1241 1242 static QemuInputHandler ps2_mouse_handler = { 1243 .name = "QEMU PS/2 Mouse", 1244 .mask = INPUT_EVENT_MASK_BTN | INPUT_EVENT_MASK_REL, 1245 .event = ps2_mouse_event, 1246 .sync = ps2_mouse_sync, 1247 }; 1248 1249 void *ps2_mouse_init(void (*update_irq)(void *, int), void *update_arg) 1250 { 1251 PS2MouseState *s = (PS2MouseState *)g_malloc0(sizeof(PS2MouseState)); 1252 1253 trace_ps2_mouse_init(s); 1254 s->common.update_irq = update_irq; 1255 s->common.update_arg = update_arg; 1256 vmstate_register(NULL, 0, &vmstate_ps2_mouse, s); 1257 qemu_input_handler_register((DeviceState *)s, 1258 &ps2_mouse_handler); 1259 qemu_register_reset(ps2_mouse_reset, s); 1260 return s; 1261 } 1262