1 /*- 2 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer as 10 * the first lines of this file unmodified. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 * 26 * $FreeBSD: src/sys/dev/kbd/atkbd.c,v 1.25.2.4 2002/04/08 19:21:38 asmodai Exp $ 27 * $DragonFly: src/sys/dev/misc/kbd/atkbd.c,v 1.3 2003/08/07 21:16:56 dillon Exp $ 28 */ 29 30 #include "opt_kbd.h" 31 #include "opt_atkbd.h" 32 33 #include <sys/param.h> 34 #include <sys/systm.h> 35 #include <sys/kernel.h> 36 #include <sys/bus.h> 37 #include <sys/proc.h> 38 #include <sys/malloc.h> 39 40 #include <machine/bus.h> 41 #include <machine/resource.h> 42 43 #ifdef __i386__ 44 #include <machine/md_var.h> 45 #include <machine/psl.h> 46 #include <machine/vm86.h> 47 #include <machine/pc/bios.h> 48 49 #include <vm/vm.h> 50 #include <vm/pmap.h> 51 #endif /* __i386__ */ 52 53 #include <sys/kbio.h> 54 #include "kbdreg.h" 55 #include "atkbdreg.h" 56 #include "atkbdcreg.h" 57 58 #include <bus/isa/isareg.h> 59 60 static timeout_t atkbd_timeout; 61 62 int 63 atkbd_probe_unit(int unit, int ctlr, int irq, int flags) 64 { 65 keyboard_switch_t *sw; 66 int args[2]; 67 int error; 68 69 sw = kbd_get_switch(ATKBD_DRIVER_NAME); 70 if (sw == NULL) 71 return ENXIO; 72 73 args[0] = ctlr; 74 args[1] = irq; 75 error = (*sw->probe)(unit, args, flags); 76 if (error) 77 return error; 78 return 0; 79 } 80 81 int 82 atkbd_attach_unit(int unit, keyboard_t **kbd, int ctlr, int irq, int flags) 83 { 84 keyboard_switch_t *sw; 85 int args[2]; 86 int error; 87 88 sw = kbd_get_switch(ATKBD_DRIVER_NAME); 89 if (sw == NULL) 90 return ENXIO; 91 92 /* reset, initialize and enable the device */ 93 args[0] = ctlr; 94 args[1] = irq; 95 *kbd = NULL; 96 error = (*sw->probe)(unit, args, flags); 97 if (error) 98 return error; 99 error = (*sw->init)(unit, kbd, args, flags); 100 if (error) 101 return error; 102 (*sw->enable)(*kbd); 103 104 #ifdef KBD_INSTALL_CDEV 105 /* attach a virtual keyboard cdev */ 106 error = kbd_attach(*kbd); 107 if (error) 108 return error; 109 #endif 110 111 /* 112 * This is a kludge to compensate for lost keyboard interrupts. 113 * A similar code used to be in syscons. See below. XXX 114 */ 115 atkbd_timeout(*kbd); 116 117 if (bootverbose) 118 (*sw->diag)(*kbd, bootverbose); 119 return 0; 120 } 121 122 static void 123 atkbd_timeout(void *arg) 124 { 125 keyboard_t *kbd; 126 int s; 127 128 /* 129 * The original text of the following comments are extracted 130 * from syscons.c (1.287) 131 * 132 * With release 2.1 of the Xaccel server, the keyboard is left 133 * hanging pretty often. Apparently an interrupt from the 134 * keyboard is lost, and I don't know why (yet). 135 * This ugly hack calls the low-level interrupt routine if input 136 * is ready for the keyboard and conveniently hides the problem. XXX 137 * 138 * Try removing anything stuck in the keyboard controller; whether 139 * it's a keyboard scan code or mouse data. The low-level 140 * interrupt routine doesn't read the mouse data directly, 141 * but the keyboard controller driver will, as a side effect. 142 */ 143 /* 144 * And here is bde's original comment about this: 145 * 146 * This is necessary to handle edge triggered interrupts - if we 147 * returned when our IRQ is high due to unserviced input, then there 148 * would be no more keyboard IRQs until the keyboard is reset by 149 * external powers. 150 * 151 * The keyboard apparently unwedges the irq in most cases. 152 */ 153 s = spltty(); 154 kbd = (keyboard_t *)arg; 155 if ((*kbdsw[kbd->kb_index]->lock)(kbd, TRUE)) { 156 /* 157 * We have seen the lock flag is not set. Let's reset 158 * the flag early, otherwise the LED update routine fails 159 * which may want the lock during the interrupt routine. 160 */ 161 (*kbdsw[kbd->kb_index]->lock)(kbd, FALSE); 162 if ((*kbdsw[kbd->kb_index]->check_char)(kbd)) 163 (*kbdsw[kbd->kb_index]->intr)(kbd, NULL); 164 } 165 splx(s); 166 timeout(atkbd_timeout, arg, hz/10); 167 } 168 169 /* LOW-LEVEL */ 170 171 #include <machine/limits.h> 172 #include <machine/clock.h> 173 174 #define ATKBD_DEFAULT 0 175 176 typedef struct atkbd_state { 177 KBDC kbdc; /* keyboard controller */ 178 /* XXX: don't move this field; pcvt 179 * expects `kbdc' to be the first 180 * field in this structure. */ 181 int ks_mode; /* input mode (K_XLATE,K_RAW,K_CODE) */ 182 int ks_flags; /* flags */ 183 #define COMPOSE (1 << 0) 184 int ks_polling; 185 int ks_state; /* shift/lock key state */ 186 int ks_accents; /* accent key index (> 0) */ 187 u_int ks_composed_char; /* composed char code (> 0) */ 188 u_char ks_prefix; /* AT scan code prefix */ 189 } atkbd_state_t; 190 191 /* keyboard driver declaration */ 192 static int atkbd_configure(int flags); 193 static kbd_probe_t atkbd_probe; 194 static kbd_init_t atkbd_init; 195 static kbd_term_t atkbd_term; 196 static kbd_intr_t atkbd_intr; 197 static kbd_test_if_t atkbd_test_if; 198 static kbd_enable_t atkbd_enable; 199 static kbd_disable_t atkbd_disable; 200 static kbd_read_t atkbd_read; 201 static kbd_check_t atkbd_check; 202 static kbd_read_char_t atkbd_read_char; 203 static kbd_check_char_t atkbd_check_char; 204 static kbd_ioctl_t atkbd_ioctl; 205 static kbd_lock_t atkbd_lock; 206 static kbd_clear_state_t atkbd_clear_state; 207 static kbd_get_state_t atkbd_get_state; 208 static kbd_set_state_t atkbd_set_state; 209 static kbd_poll_mode_t atkbd_poll; 210 211 keyboard_switch_t atkbdsw = { 212 atkbd_probe, 213 atkbd_init, 214 atkbd_term, 215 atkbd_intr, 216 atkbd_test_if, 217 atkbd_enable, 218 atkbd_disable, 219 atkbd_read, 220 atkbd_check, 221 atkbd_read_char, 222 atkbd_check_char, 223 atkbd_ioctl, 224 atkbd_lock, 225 atkbd_clear_state, 226 atkbd_get_state, 227 atkbd_set_state, 228 genkbd_get_fkeystr, 229 atkbd_poll, 230 genkbd_diag, 231 }; 232 233 KEYBOARD_DRIVER(atkbd, atkbdsw, atkbd_configure); 234 235 /* local functions */ 236 static int get_typematic(keyboard_t *kbd); 237 static int setup_kbd_port(KBDC kbdc, int port, int intr); 238 static int get_kbd_echo(KBDC kbdc); 239 static int probe_keyboard(KBDC kbdc, int flags); 240 static int init_keyboard(KBDC kbdc, int *type, int flags); 241 static int write_kbd(KBDC kbdc, int command, int data); 242 static int get_kbd_id(KBDC kbdc); 243 static int typematic(int delay, int rate); 244 static int typematic_delay(int delay); 245 static int typematic_rate(int rate); 246 247 /* local variables */ 248 249 /* the initial key map, accent map and fkey strings */ 250 #ifdef ATKBD_DFLT_KEYMAP 251 #define KBD_DFLT_KEYMAP 252 #include "atkbdmap.h" 253 #endif 254 #include "kbdtables.h" 255 256 /* structures for the default keyboard */ 257 static keyboard_t default_kbd; 258 static atkbd_state_t default_kbd_state; 259 static keymap_t default_keymap; 260 static accentmap_t default_accentmap; 261 static fkeytab_t default_fkeytab[NUM_FKEYS]; 262 263 /* 264 * The back door to the keyboard driver! 265 * This function is called by the console driver, via the kbdio module, 266 * to tickle keyboard drivers when the low-level console is being initialized. 267 * Almost nothing in the kernel has been initialied yet. Try to probe 268 * keyboards if possible. 269 * NOTE: because of the way the low-level console is initialized, this routine 270 * may be called more than once!! 271 */ 272 static int 273 atkbd_configure(int flags) 274 { 275 keyboard_t *kbd; 276 int arg[2]; 277 int i; 278 279 /* probe the keyboard controller */ 280 atkbdc_configure(); 281 282 /* if the driver is disabled, unregister the keyboard if any */ 283 if ((resource_int_value("atkbd", ATKBD_DEFAULT, "disabled", &i) == 0) 284 && i != 0) { 285 i = kbd_find_keyboard(ATKBD_DRIVER_NAME, ATKBD_DEFAULT); 286 if (i >= 0) { 287 kbd = kbd_get_keyboard(i); 288 kbd_unregister(kbd); 289 kbd->kb_flags &= ~KB_REGISTERED; 290 } 291 return 0; 292 } 293 294 /* XXX: a kludge to obtain the device configuration flags */ 295 if (resource_int_value("atkbd", ATKBD_DEFAULT, "flags", &i) == 0) 296 flags |= i; 297 298 /* probe the default keyboard */ 299 arg[0] = -1; 300 arg[1] = -1; 301 kbd = NULL; 302 if (atkbd_probe(ATKBD_DEFAULT, arg, flags)) 303 return 0; 304 if (atkbd_init(ATKBD_DEFAULT, &kbd, arg, flags)) 305 return 0; 306 307 /* return the number of found keyboards */ 308 return 1; 309 } 310 311 /* low-level functions */ 312 313 /* detect a keyboard */ 314 static int 315 atkbd_probe(int unit, void *arg, int flags) 316 { 317 KBDC kbdc; 318 int *data = (int *)arg; /* data[0]: controller, data[1]: irq */ 319 320 /* XXX */ 321 if (unit == ATKBD_DEFAULT) { 322 if (KBD_IS_PROBED(&default_kbd)) 323 return 0; 324 } 325 326 kbdc = atkbdc_open(data[0]); 327 if (kbdc == NULL) 328 return ENXIO; 329 if (probe_keyboard(kbdc, flags)) { 330 if (flags & KB_CONF_FAIL_IF_NO_KBD) 331 return ENXIO; 332 } 333 return 0; 334 } 335 336 /* reset and initialize the device */ 337 static int 338 atkbd_init(int unit, keyboard_t **kbdp, void *arg, int flags) 339 { 340 keyboard_t *kbd; 341 atkbd_state_t *state; 342 keymap_t *keymap; 343 accentmap_t *accmap; 344 fkeytab_t *fkeymap; 345 int fkeymap_size; 346 int delay[2]; 347 int *data = (int *)arg; /* data[0]: controller, data[1]: irq */ 348 349 /* XXX */ 350 if (unit == ATKBD_DEFAULT) { 351 *kbdp = kbd = &default_kbd; 352 if (KBD_IS_INITIALIZED(kbd) && KBD_IS_CONFIGURED(kbd)) 353 return 0; 354 state = &default_kbd_state; 355 keymap = &default_keymap; 356 accmap = &default_accentmap; 357 fkeymap = default_fkeytab; 358 fkeymap_size = 359 sizeof(default_fkeytab)/sizeof(default_fkeytab[0]); 360 } else if (*kbdp == NULL) { 361 *kbdp = kbd = malloc(sizeof(*kbd), M_DEVBUF, M_NOWAIT); 362 if (kbd == NULL) 363 return ENOMEM; 364 bzero(kbd, sizeof(*kbd)); 365 state = malloc(sizeof(*state), M_DEVBUF, M_NOWAIT); 366 keymap = malloc(sizeof(key_map), M_DEVBUF, M_NOWAIT); 367 accmap = malloc(sizeof(accent_map), M_DEVBUF, M_NOWAIT); 368 fkeymap = malloc(sizeof(fkey_tab), M_DEVBUF, M_NOWAIT); 369 fkeymap_size = sizeof(fkey_tab)/sizeof(fkey_tab[0]); 370 if ((state == NULL) || (keymap == NULL) || (accmap == NULL) 371 || (fkeymap == NULL)) { 372 if (state != NULL) 373 free(state, M_DEVBUF); 374 if (keymap != NULL) 375 free(keymap, M_DEVBUF); 376 if (accmap != NULL) 377 free(accmap, M_DEVBUF); 378 if (fkeymap != NULL) 379 free(fkeymap, M_DEVBUF); 380 free(kbd, M_DEVBUF); 381 return ENOMEM; 382 } 383 bzero(state, sizeof(*state)); 384 } else if (KBD_IS_INITIALIZED(*kbdp) && KBD_IS_CONFIGURED(*kbdp)) { 385 return 0; 386 } else { 387 kbd = *kbdp; 388 state = (atkbd_state_t *)kbd->kb_data; 389 bzero(state, sizeof(*state)); 390 keymap = kbd->kb_keymap; 391 accmap = kbd->kb_accentmap; 392 fkeymap = kbd->kb_fkeytab; 393 fkeymap_size = kbd->kb_fkeytab_size; 394 } 395 396 if (!KBD_IS_PROBED(kbd)) { 397 state->kbdc = atkbdc_open(data[0]); 398 if (state->kbdc == NULL) 399 return ENXIO; 400 kbd_init_struct(kbd, ATKBD_DRIVER_NAME, KB_OTHER, unit, flags, 401 0, 0); 402 bcopy(&key_map, keymap, sizeof(key_map)); 403 bcopy(&accent_map, accmap, sizeof(accent_map)); 404 bcopy(fkey_tab, fkeymap, 405 imin(fkeymap_size*sizeof(fkeymap[0]), sizeof(fkey_tab))); 406 kbd_set_maps(kbd, keymap, accmap, fkeymap, fkeymap_size); 407 kbd->kb_data = (void *)state; 408 409 if (probe_keyboard(state->kbdc, flags)) { /* shouldn't happen */ 410 if (flags & KB_CONF_FAIL_IF_NO_KBD) 411 return ENXIO; 412 } else { 413 KBD_FOUND_DEVICE(kbd); 414 } 415 atkbd_clear_state(kbd); 416 state->ks_mode = K_XLATE; 417 /* 418 * FIXME: set the initial value for lock keys in ks_state 419 * according to the BIOS data? 420 */ 421 KBD_PROBE_DONE(kbd); 422 } 423 if (!KBD_IS_INITIALIZED(kbd) && !(flags & KB_CONF_PROBE_ONLY)) { 424 kbd->kb_config = flags & ~KB_CONF_PROBE_ONLY; 425 if (KBD_HAS_DEVICE(kbd) 426 && init_keyboard(state->kbdc, &kbd->kb_type, kbd->kb_config) 427 && (kbd->kb_config & KB_CONF_FAIL_IF_NO_KBD)) 428 return ENXIO; 429 atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state); 430 get_typematic(kbd); 431 delay[0] = kbd->kb_delay1; 432 delay[1] = kbd->kb_delay2; 433 atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay); 434 KBD_INIT_DONE(kbd); 435 } 436 if (!KBD_IS_CONFIGURED(kbd)) { 437 if (kbd_register(kbd) < 0) 438 return ENXIO; 439 KBD_CONFIG_DONE(kbd); 440 } 441 442 return 0; 443 } 444 445 /* finish using this keyboard */ 446 static int 447 atkbd_term(keyboard_t *kbd) 448 { 449 kbd_unregister(kbd); 450 return 0; 451 } 452 453 /* keyboard interrupt routine */ 454 static int 455 atkbd_intr(keyboard_t *kbd, void *arg) 456 { 457 atkbd_state_t *state; 458 int delay[2]; 459 int c; 460 461 if (KBD_IS_ACTIVE(kbd) && KBD_IS_BUSY(kbd)) { 462 /* let the callback function to process the input */ 463 (*kbd->kb_callback.kc_func)(kbd, KBDIO_KEYINPUT, 464 kbd->kb_callback.kc_arg); 465 } else { 466 /* read and discard the input; no one is waiting for input */ 467 do { 468 c = atkbd_read_char(kbd, FALSE); 469 } while (c != NOKEY); 470 471 if (!KBD_HAS_DEVICE(kbd)) { 472 /* 473 * The keyboard was not detected before; 474 * it must have been reconnected! 475 */ 476 state = (atkbd_state_t *)kbd->kb_data; 477 init_keyboard(state->kbdc, &kbd->kb_type, 478 kbd->kb_config); 479 atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state); 480 get_typematic(kbd); 481 delay[0] = kbd->kb_delay1; 482 delay[1] = kbd->kb_delay2; 483 atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay); 484 KBD_FOUND_DEVICE(kbd); 485 } 486 } 487 return 0; 488 } 489 490 /* test the interface to the device */ 491 static int 492 atkbd_test_if(keyboard_t *kbd) 493 { 494 int error; 495 int s; 496 497 error = 0; 498 empty_both_buffers(((atkbd_state_t *)kbd->kb_data)->kbdc, 10); 499 s = spltty(); 500 if (!test_controller(((atkbd_state_t *)kbd->kb_data)->kbdc)) 501 error = EIO; 502 else if (test_kbd_port(((atkbd_state_t *)kbd->kb_data)->kbdc) != 0) 503 error = EIO; 504 splx(s); 505 506 return error; 507 } 508 509 /* 510 * Enable the access to the device; until this function is called, 511 * the client cannot read from the keyboard. 512 */ 513 static int 514 atkbd_enable(keyboard_t *kbd) 515 { 516 int s; 517 518 s = spltty(); 519 KBD_ACTIVATE(kbd); 520 splx(s); 521 return 0; 522 } 523 524 /* disallow the access to the device */ 525 static int 526 atkbd_disable(keyboard_t *kbd) 527 { 528 int s; 529 530 s = spltty(); 531 KBD_DEACTIVATE(kbd); 532 splx(s); 533 return 0; 534 } 535 536 /* read one byte from the keyboard if it's allowed */ 537 static int 538 atkbd_read(keyboard_t *kbd, int wait) 539 { 540 int c; 541 542 if (wait) 543 c = read_kbd_data(((atkbd_state_t *)kbd->kb_data)->kbdc); 544 else 545 c = read_kbd_data_no_wait(((atkbd_state_t *)kbd->kb_data)->kbdc); 546 if (c != -1) 547 ++kbd->kb_count; 548 return (KBD_IS_ACTIVE(kbd) ? c : -1); 549 } 550 551 /* check if data is waiting */ 552 static int 553 atkbd_check(keyboard_t *kbd) 554 { 555 if (!KBD_IS_ACTIVE(kbd)) 556 return FALSE; 557 return kbdc_data_ready(((atkbd_state_t *)kbd->kb_data)->kbdc); 558 } 559 560 /* read char from the keyboard */ 561 static u_int 562 atkbd_read_char(keyboard_t *kbd, int wait) 563 { 564 atkbd_state_t *state; 565 u_int action; 566 int scancode; 567 int keycode; 568 569 state = (atkbd_state_t *)kbd->kb_data; 570 next_code: 571 /* do we have a composed char to return? */ 572 if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0)) { 573 action = state->ks_composed_char; 574 state->ks_composed_char = 0; 575 if (action > UCHAR_MAX) 576 return ERRKEY; 577 return action; 578 } 579 580 /* see if there is something in the keyboard port */ 581 if (wait) { 582 do { 583 scancode = read_kbd_data(state->kbdc); 584 } while (scancode == -1); 585 } else { 586 scancode = read_kbd_data_no_wait(state->kbdc); 587 if (scancode == -1) 588 return NOKEY; 589 } 590 ++kbd->kb_count; 591 592 #if KBDIO_DEBUG >= 10 593 printf("atkbd_read_char(): scancode:0x%x\n", scancode); 594 #endif 595 596 /* return the byte as is for the K_RAW mode */ 597 if (state->ks_mode == K_RAW) 598 return scancode; 599 600 /* translate the scan code into a keycode */ 601 keycode = scancode & 0x7F; 602 switch (state->ks_prefix) { 603 case 0x00: /* normal scancode */ 604 switch(scancode) { 605 case 0xB8: /* left alt (compose key) released */ 606 if (state->ks_flags & COMPOSE) { 607 state->ks_flags &= ~COMPOSE; 608 if (state->ks_composed_char > UCHAR_MAX) 609 state->ks_composed_char = 0; 610 } 611 break; 612 case 0x38: /* left alt (compose key) pressed */ 613 if (!(state->ks_flags & COMPOSE)) { 614 state->ks_flags |= COMPOSE; 615 state->ks_composed_char = 0; 616 } 617 break; 618 case 0xE0: 619 case 0xE1: 620 state->ks_prefix = scancode; 621 goto next_code; 622 } 623 break; 624 case 0xE0: /* 0xE0 prefix */ 625 state->ks_prefix = 0; 626 switch (keycode) { 627 case 0x1C: /* right enter key */ 628 keycode = 0x59; 629 break; 630 case 0x1D: /* right ctrl key */ 631 keycode = 0x5A; 632 break; 633 case 0x35: /* keypad divide key */ 634 keycode = 0x5B; 635 break; 636 case 0x37: /* print scrn key */ 637 keycode = 0x5C; 638 break; 639 case 0x38: /* right alt key (alt gr) */ 640 keycode = 0x5D; 641 break; 642 case 0x46: /* ctrl-pause/break on AT 101 (see below) */ 643 keycode = 0x68; 644 break; 645 case 0x47: /* grey home key */ 646 keycode = 0x5E; 647 break; 648 case 0x48: /* grey up arrow key */ 649 keycode = 0x5F; 650 break; 651 case 0x49: /* grey page up key */ 652 keycode = 0x60; 653 break; 654 case 0x4B: /* grey left arrow key */ 655 keycode = 0x61; 656 break; 657 case 0x4D: /* grey right arrow key */ 658 keycode = 0x62; 659 break; 660 case 0x4F: /* grey end key */ 661 keycode = 0x63; 662 break; 663 case 0x50: /* grey down arrow key */ 664 keycode = 0x64; 665 break; 666 case 0x51: /* grey page down key */ 667 keycode = 0x65; 668 break; 669 case 0x52: /* grey insert key */ 670 keycode = 0x66; 671 break; 672 case 0x53: /* grey delete key */ 673 keycode = 0x67; 674 break; 675 /* the following 3 are only used on the MS "Natural" keyboard */ 676 case 0x5b: /* left Window key */ 677 keycode = 0x69; 678 break; 679 case 0x5c: /* right Window key */ 680 keycode = 0x6a; 681 break; 682 case 0x5d: /* menu key */ 683 keycode = 0x6b; 684 break; 685 default: /* ignore everything else */ 686 goto next_code; 687 } 688 break; 689 case 0xE1: /* 0xE1 prefix */ 690 /* 691 * The pause/break key on the 101 keyboard produces: 692 * E1-1D-45 E1-9D-C5 693 * Ctrl-pause/break produces: 694 * E0-46 E0-C6 (See above.) 695 */ 696 state->ks_prefix = 0; 697 if (keycode == 0x1D) 698 state->ks_prefix = 0x1D; 699 goto next_code; 700 /* NOT REACHED */ 701 case 0x1D: /* pause / break */ 702 state->ks_prefix = 0; 703 if (keycode != 0x45) 704 goto next_code; 705 keycode = 0x68; 706 break; 707 } 708 709 if (kbd->kb_type == KB_84) { 710 switch (keycode) { 711 case 0x37: /* *(numpad)/print screen */ 712 if (state->ks_flags & SHIFTS) 713 keycode = 0x5c; /* print screen */ 714 break; 715 case 0x45: /* num lock/pause */ 716 if (state->ks_flags & CTLS) 717 keycode = 0x68; /* pause */ 718 break; 719 case 0x46: /* scroll lock/break */ 720 if (state->ks_flags & CTLS) 721 keycode = 0x6c; /* break */ 722 break; 723 } 724 } else if (kbd->kb_type == KB_101) { 725 switch (keycode) { 726 case 0x5c: /* print screen */ 727 if (state->ks_flags & ALTS) 728 keycode = 0x54; /* sysrq */ 729 break; 730 case 0x68: /* pause/break */ 731 if (state->ks_flags & CTLS) 732 keycode = 0x6c; /* break */ 733 break; 734 } 735 } 736 737 /* return the key code in the K_CODE mode */ 738 if (state->ks_mode == K_CODE) 739 return (keycode | (scancode & 0x80)); 740 741 /* compose a character code */ 742 if (state->ks_flags & COMPOSE) { 743 switch (keycode | (scancode & 0x80)) { 744 /* key pressed, process it */ 745 case 0x47: case 0x48: case 0x49: /* keypad 7,8,9 */ 746 state->ks_composed_char *= 10; 747 state->ks_composed_char += keycode - 0x40; 748 if (state->ks_composed_char > UCHAR_MAX) 749 return ERRKEY; 750 goto next_code; 751 case 0x4B: case 0x4C: case 0x4D: /* keypad 4,5,6 */ 752 state->ks_composed_char *= 10; 753 state->ks_composed_char += keycode - 0x47; 754 if (state->ks_composed_char > UCHAR_MAX) 755 return ERRKEY; 756 goto next_code; 757 case 0x4F: case 0x50: case 0x51: /* keypad 1,2,3 */ 758 state->ks_composed_char *= 10; 759 state->ks_composed_char += keycode - 0x4E; 760 if (state->ks_composed_char > UCHAR_MAX) 761 return ERRKEY; 762 goto next_code; 763 case 0x52: /* keypad 0 */ 764 state->ks_composed_char *= 10; 765 if (state->ks_composed_char > UCHAR_MAX) 766 return ERRKEY; 767 goto next_code; 768 769 /* key released, no interest here */ 770 case 0xC7: case 0xC8: case 0xC9: /* keypad 7,8,9 */ 771 case 0xCB: case 0xCC: case 0xCD: /* keypad 4,5,6 */ 772 case 0xCF: case 0xD0: case 0xD1: /* keypad 1,2,3 */ 773 case 0xD2: /* keypad 0 */ 774 goto next_code; 775 776 case 0x38: /* left alt key */ 777 break; 778 779 default: 780 if (state->ks_composed_char > 0) { 781 state->ks_flags &= ~COMPOSE; 782 state->ks_composed_char = 0; 783 return ERRKEY; 784 } 785 break; 786 } 787 } 788 789 /* keycode to key action */ 790 action = genkbd_keyaction(kbd, keycode, scancode & 0x80, 791 &state->ks_state, &state->ks_accents); 792 if (action == NOKEY) 793 goto next_code; 794 else 795 return action; 796 } 797 798 /* check if char is waiting */ 799 static int 800 atkbd_check_char(keyboard_t *kbd) 801 { 802 atkbd_state_t *state; 803 804 if (!KBD_IS_ACTIVE(kbd)) 805 return FALSE; 806 state = (atkbd_state_t *)kbd->kb_data; 807 if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0)) 808 return TRUE; 809 return kbdc_data_ready(state->kbdc); 810 } 811 812 /* some useful control functions */ 813 static int 814 atkbd_ioctl(keyboard_t *kbd, u_long cmd, caddr_t arg) 815 { 816 /* trasnlate LED_XXX bits into the device specific bits */ 817 static u_char ledmap[8] = { 818 0, 4, 2, 6, 1, 5, 3, 7, 819 }; 820 atkbd_state_t *state = kbd->kb_data; 821 int error; 822 int s; 823 int i; 824 825 s = spltty(); 826 switch (cmd) { 827 828 case KDGKBMODE: /* get keyboard mode */ 829 *(int *)arg = state->ks_mode; 830 break; 831 case KDSKBMODE: /* set keyboard mode */ 832 switch (*(int *)arg) { 833 case K_XLATE: 834 if (state->ks_mode != K_XLATE) { 835 /* make lock key state and LED state match */ 836 state->ks_state &= ~LOCK_MASK; 837 state->ks_state |= KBD_LED_VAL(kbd); 838 } 839 /* FALL THROUGH */ 840 case K_RAW: 841 case K_CODE: 842 if (state->ks_mode != *(int *)arg) { 843 atkbd_clear_state(kbd); 844 state->ks_mode = *(int *)arg; 845 } 846 break; 847 default: 848 splx(s); 849 return EINVAL; 850 } 851 break; 852 853 case KDGETLED: /* get keyboard LED */ 854 *(int *)arg = KBD_LED_VAL(kbd); 855 break; 856 case KDSETLED: /* set keyboard LED */ 857 /* NOTE: lock key state in ks_state won't be changed */ 858 if (*(int *)arg & ~LOCK_MASK) { 859 splx(s); 860 return EINVAL; 861 } 862 i = *(int *)arg; 863 /* replace CAPS LED with ALTGR LED for ALTGR keyboards */ 864 if (state->ks_mode == K_XLATE && 865 kbd->kb_keymap->n_keys > ALTGR_OFFSET) { 866 if (i & ALKED) 867 i |= CLKED; 868 else 869 i &= ~CLKED; 870 } 871 if (KBD_HAS_DEVICE(kbd)) { 872 error = write_kbd(state->kbdc, KBDC_SET_LEDS, 873 ledmap[i & LED_MASK]); 874 if (error) { 875 splx(s); 876 return error; 877 } 878 } 879 KBD_LED_VAL(kbd) = *(int *)arg; 880 break; 881 882 case KDGKBSTATE: /* get lock key state */ 883 *(int *)arg = state->ks_state & LOCK_MASK; 884 break; 885 case KDSKBSTATE: /* set lock key state */ 886 if (*(int *)arg & ~LOCK_MASK) { 887 splx(s); 888 return EINVAL; 889 } 890 state->ks_state &= ~LOCK_MASK; 891 state->ks_state |= *(int *)arg; 892 splx(s); 893 /* set LEDs and quit */ 894 return atkbd_ioctl(kbd, KDSETLED, arg); 895 896 case KDSETREPEAT: /* set keyboard repeat rate (new interface) */ 897 splx(s); 898 if (!KBD_HAS_DEVICE(kbd)) 899 return 0; 900 i = typematic(((int *)arg)[0], ((int *)arg)[1]); 901 error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, i); 902 if (error == 0) { 903 kbd->kb_delay1 = typematic_delay(i); 904 kbd->kb_delay2 = typematic_rate(i); 905 } 906 return error; 907 908 case KDSETRAD: /* set keyboard repeat rate (old interface) */ 909 splx(s); 910 if (!KBD_HAS_DEVICE(kbd)) 911 return 0; 912 error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, *(int *)arg); 913 if (error == 0) { 914 kbd->kb_delay1 = typematic_delay(*(int *)arg); 915 kbd->kb_delay2 = typematic_rate(*(int *)arg); 916 } 917 return error; 918 919 case PIO_KEYMAP: /* set keyboard translation table */ 920 case PIO_KEYMAPENT: /* set keyboard translation table entry */ 921 case PIO_DEADKEYMAP: /* set accent key translation table */ 922 state->ks_accents = 0; 923 /* FALL THROUGH */ 924 default: 925 splx(s); 926 return genkbd_commonioctl(kbd, cmd, arg); 927 } 928 929 splx(s); 930 return 0; 931 } 932 933 /* lock the access to the keyboard */ 934 static int 935 atkbd_lock(keyboard_t *kbd, int lock) 936 { 937 return kbdc_lock(((atkbd_state_t *)kbd->kb_data)->kbdc, lock); 938 } 939 940 /* clear the internal state of the keyboard */ 941 static void 942 atkbd_clear_state(keyboard_t *kbd) 943 { 944 atkbd_state_t *state; 945 946 state = (atkbd_state_t *)kbd->kb_data; 947 state->ks_flags = 0; 948 state->ks_polling = 0; 949 state->ks_state &= LOCK_MASK; /* preserve locking key state */ 950 state->ks_accents = 0; 951 state->ks_composed_char = 0; 952 #if 0 953 state->ks_prefix = 0; /* XXX */ 954 #endif 955 } 956 957 /* save the internal state */ 958 static int 959 atkbd_get_state(keyboard_t *kbd, void *buf, size_t len) 960 { 961 if (len == 0) 962 return sizeof(atkbd_state_t); 963 if (len < sizeof(atkbd_state_t)) 964 return -1; 965 bcopy(kbd->kb_data, buf, sizeof(atkbd_state_t)); 966 return 0; 967 } 968 969 /* set the internal state */ 970 static int 971 atkbd_set_state(keyboard_t *kbd, void *buf, size_t len) 972 { 973 if (len < sizeof(atkbd_state_t)) 974 return ENOMEM; 975 if (((atkbd_state_t *)kbd->kb_data)->kbdc 976 != ((atkbd_state_t *)buf)->kbdc) 977 return ENOMEM; 978 bcopy(buf, kbd->kb_data, sizeof(atkbd_state_t)); 979 return 0; 980 } 981 982 static int 983 atkbd_poll(keyboard_t *kbd, int on) 984 { 985 atkbd_state_t *state; 986 int s; 987 988 state = (atkbd_state_t *)kbd->kb_data; 989 s = spltty(); 990 if (on) 991 ++state->ks_polling; 992 else 993 --state->ks_polling; 994 splx(s); 995 return 0; 996 } 997 998 /* local functions */ 999 1000 static int 1001 get_typematic(keyboard_t *kbd) 1002 { 1003 #ifdef __i386__ 1004 /* 1005 * Only some systems allow us to retrieve the keyboard repeat 1006 * rate previously set via the BIOS... 1007 */ 1008 struct vm86frame vmf; 1009 u_int32_t p; 1010 1011 bzero(&vmf, sizeof(vmf)); 1012 vmf.vmf_ax = 0xc000; 1013 vm86_intcall(0x15, &vmf); 1014 if ((vmf.vmf_eflags & PSL_C) || vmf.vmf_ah) 1015 return ENODEV; 1016 p = BIOS_PADDRTOVADDR(((u_int32_t)vmf.vmf_es << 4) + vmf.vmf_bx); 1017 if ((readb(p + 6) & 0x40) == 0) /* int 16, function 0x09 supported? */ 1018 return ENODEV; 1019 vmf.vmf_ax = 0x0900; 1020 vm86_intcall(0x16, &vmf); 1021 if ((vmf.vmf_al & 0x08) == 0) /* int 16, function 0x0306 supported? */ 1022 return ENODEV; 1023 vmf.vmf_ax = 0x0306; 1024 vm86_intcall(0x16, &vmf); 1025 kbd->kb_delay1 = typematic_delay(vmf.vmf_bh << 5); 1026 kbd->kb_delay2 = typematic_rate(vmf.vmf_bl); 1027 return 0; 1028 #else 1029 return ENODEV; 1030 #endif /* __i386__ */ 1031 } 1032 1033 static int 1034 setup_kbd_port(KBDC kbdc, int port, int intr) 1035 { 1036 if (!set_controller_command_byte(kbdc, 1037 KBD_KBD_CONTROL_BITS, 1038 ((port) ? KBD_ENABLE_KBD_PORT : KBD_DISABLE_KBD_PORT) 1039 | ((intr) ? KBD_ENABLE_KBD_INT : KBD_DISABLE_KBD_INT))) 1040 return 1; 1041 return 0; 1042 } 1043 1044 static int 1045 get_kbd_echo(KBDC kbdc) 1046 { 1047 /* enable the keyboard port, but disable the keyboard intr. */ 1048 if (setup_kbd_port(kbdc, TRUE, FALSE)) 1049 /* CONTROLLER ERROR: there is very little we can do... */ 1050 return ENXIO; 1051 1052 /* see if something is present */ 1053 write_kbd_command(kbdc, KBDC_ECHO); 1054 if (read_kbd_data(kbdc) != KBD_ECHO) { 1055 empty_both_buffers(kbdc, 10); 1056 test_controller(kbdc); 1057 test_kbd_port(kbdc); 1058 return ENXIO; 1059 } 1060 1061 /* enable the keyboard port and intr. */ 1062 if (setup_kbd_port(kbdc, TRUE, TRUE)) { 1063 /* 1064 * CONTROLLER ERROR 1065 * This is serious; the keyboard intr is left disabled! 1066 */ 1067 return ENXIO; 1068 } 1069 1070 return 0; 1071 } 1072 1073 static int 1074 probe_keyboard(KBDC kbdc, int flags) 1075 { 1076 /* 1077 * Don't try to print anything in this function. The low-level 1078 * console may not have been initialized yet... 1079 */ 1080 int err; 1081 int c; 1082 int m; 1083 1084 if (!kbdc_lock(kbdc, TRUE)) { 1085 /* driver error? */ 1086 return ENXIO; 1087 } 1088 1089 /* temporarily block data transmission from the keyboard */ 1090 write_controller_command(kbdc, KBDC_DISABLE_KBD_PORT); 1091 1092 /* flush any noise in the buffer */ 1093 empty_both_buffers(kbdc, 100); 1094 1095 /* save the current keyboard controller command byte */ 1096 m = kbdc_get_device_mask(kbdc) & ~KBD_KBD_CONTROL_BITS; 1097 c = get_controller_command_byte(kbdc); 1098 if (c == -1) { 1099 /* CONTROLLER ERROR */ 1100 kbdc_set_device_mask(kbdc, m); 1101 kbdc_lock(kbdc, FALSE); 1102 return ENXIO; 1103 } 1104 1105 /* 1106 * The keyboard may have been screwed up by the boot block. 1107 * We may just be able to recover from error by testing the controller 1108 * and the keyboard port. The controller command byte needs to be 1109 * saved before this recovery operation, as some controllers seem 1110 * to set the command byte to particular values. 1111 */ 1112 test_controller(kbdc); 1113 test_kbd_port(kbdc); 1114 1115 err = get_kbd_echo(kbdc); 1116 1117 /* 1118 * Even if the keyboard doesn't seem to be present (err != 0), 1119 * we shall enable the keyboard port and interrupt so that 1120 * the driver will be operable when the keyboard is attached 1121 * to the system later. It is NOT recommended to hot-plug 1122 * the AT keyboard, but many people do so... 1123 */ 1124 kbdc_set_device_mask(kbdc, m | KBD_KBD_CONTROL_BITS); 1125 setup_kbd_port(kbdc, TRUE, TRUE); 1126 #if 0 1127 if (err == 0) { 1128 kbdc_set_device_mask(kbdc, m | KBD_KBD_CONTROL_BITS); 1129 } else { 1130 /* try to restore the command byte as before */ 1131 set_controller_command_byte(kbdc, 0xff, c); 1132 kbdc_set_device_mask(kbdc, m); 1133 } 1134 #endif 1135 1136 kbdc_lock(kbdc, FALSE); 1137 return err; 1138 } 1139 1140 static int 1141 init_keyboard(KBDC kbdc, int *type, int flags) 1142 { 1143 int codeset; 1144 int id; 1145 int c; 1146 1147 if (!kbdc_lock(kbdc, TRUE)) { 1148 /* driver error? */ 1149 return EIO; 1150 } 1151 1152 /* temporarily block data transmission from the keyboard */ 1153 write_controller_command(kbdc, KBDC_DISABLE_KBD_PORT); 1154 1155 /* save the current controller command byte */ 1156 empty_both_buffers(kbdc, 200); 1157 c = get_controller_command_byte(kbdc); 1158 if (c == -1) { 1159 /* CONTROLLER ERROR */ 1160 kbdc_lock(kbdc, FALSE); 1161 printf("atkbd: unable to get the current command byte value.\n"); 1162 return EIO; 1163 } 1164 if (bootverbose) 1165 printf("atkbd: the current kbd controller command byte %04x\n", 1166 c); 1167 #if 0 1168 /* override the keyboard lock switch */ 1169 c |= KBD_OVERRIDE_KBD_LOCK; 1170 #endif 1171 1172 /* enable the keyboard port, but disable the keyboard intr. */ 1173 if (setup_kbd_port(kbdc, TRUE, FALSE)) { 1174 /* CONTROLLER ERROR: there is very little we can do... */ 1175 printf("atkbd: unable to set the command byte.\n"); 1176 kbdc_lock(kbdc, FALSE); 1177 return EIO; 1178 } 1179 1180 /* 1181 * Check if we have an XT keyboard before we attempt to reset it. 1182 * The procedure assumes that the keyboard and the controller have 1183 * been set up properly by BIOS and have not been messed up 1184 * during the boot process. 1185 */ 1186 codeset = -1; 1187 if (flags & KB_CONF_ALT_SCANCODESET) 1188 /* the user says there is a XT keyboard */ 1189 codeset = 1; 1190 #ifdef KBD_DETECT_XT_KEYBOARD 1191 else if ((c & KBD_TRANSLATION) == 0) { 1192 /* SET_SCANCODE_SET is not always supported; ignore error */ 1193 if (send_kbd_command_and_data(kbdc, KBDC_SET_SCANCODE_SET, 0) 1194 == KBD_ACK) 1195 codeset = read_kbd_data(kbdc); 1196 } 1197 if (bootverbose) 1198 printf("atkbd: scancode set %d\n", codeset); 1199 #endif /* KBD_DETECT_XT_KEYBOARD */ 1200 1201 *type = KB_OTHER; 1202 id = get_kbd_id(kbdc); 1203 switch(id) { 1204 case 0x41ab: /* 101/102/... Enhanced */ 1205 case 0x83ab: /* ditto */ 1206 case 0x54ab: /* SpaceSaver */ 1207 case 0x84ab: /* ditto */ 1208 #if 0 1209 case 0x90ab: /* 'G' */ 1210 case 0x91ab: /* 'P' */ 1211 case 0x92ab: /* 'A' */ 1212 #endif 1213 *type = KB_101; 1214 break; 1215 case -1: /* AT 84 keyboard doesn't return ID */ 1216 *type = KB_84; 1217 break; 1218 default: 1219 break; 1220 } 1221 if (bootverbose) 1222 printf("atkbd: keyboard ID 0x%x (%d)\n", id, *type); 1223 1224 /* reset keyboard hardware */ 1225 if (!(flags & KB_CONF_NO_RESET) && !reset_kbd(kbdc)) { 1226 /* 1227 * KEYBOARD ERROR 1228 * Keyboard reset may fail either because the keyboard 1229 * doen't exist, or because the keyboard doesn't pass 1230 * the self-test, or the keyboard controller on the 1231 * motherboard and the keyboard somehow fail to shake hands. 1232 * It is just possible, particularly in the last case, 1233 * that the keyoard controller may be left in a hung state. 1234 * test_controller() and test_kbd_port() appear to bring 1235 * the keyboard controller back (I don't know why and how, 1236 * though.) 1237 */ 1238 empty_both_buffers(kbdc, 10); 1239 test_controller(kbdc); 1240 test_kbd_port(kbdc); 1241 /* 1242 * We could disable the keyboard port and interrupt... but, 1243 * the keyboard may still exist (see above). 1244 */ 1245 set_controller_command_byte(kbdc, 0xff, c); 1246 kbdc_lock(kbdc, FALSE); 1247 if (bootverbose) 1248 printf("atkbd: failed to reset the keyboard.\n"); 1249 return EIO; 1250 } 1251 1252 /* 1253 * Allow us to set the XT_KEYBD flag in UserConfig so that keyboards 1254 * such as those on the IBM ThinkPad laptop computers can be used 1255 * with the standard console driver. 1256 */ 1257 if (codeset == 1) { 1258 if (send_kbd_command_and_data(kbdc, 1259 KBDC_SET_SCANCODE_SET, codeset) == KBD_ACK) { 1260 /* XT kbd doesn't need scan code translation */ 1261 c &= ~KBD_TRANSLATION; 1262 } else { 1263 /* 1264 * KEYBOARD ERROR 1265 * The XT kbd isn't usable unless the proper scan 1266 * code set is selected. 1267 */ 1268 set_controller_command_byte(kbdc, 0xff, c); 1269 kbdc_lock(kbdc, FALSE); 1270 printf("atkbd: unable to set the XT keyboard mode.\n"); 1271 return EIO; 1272 } 1273 } 1274 1275 #ifdef __alpha__ 1276 if (send_kbd_command_and_data( 1277 kbdc, KBDC_SET_SCANCODE_SET, 2) != KBD_ACK) { 1278 printf("atkbd: can't set translation.\n"); 1279 1280 } 1281 c |= KBD_TRANSLATION; 1282 #endif 1283 1284 /* enable the keyboard port and intr. */ 1285 if (!set_controller_command_byte(kbdc, 1286 KBD_KBD_CONTROL_BITS | KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK, 1287 (c & (KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK)) 1288 | KBD_ENABLE_KBD_PORT | KBD_ENABLE_KBD_INT)) { 1289 /* 1290 * CONTROLLER ERROR 1291 * This is serious; we are left with the disabled 1292 * keyboard intr. 1293 */ 1294 set_controller_command_byte(kbdc, 0xff, c); 1295 kbdc_lock(kbdc, FALSE); 1296 printf("atkbd: unable to enable the keyboard port and intr.\n"); 1297 return EIO; 1298 } 1299 1300 kbdc_lock(kbdc, FALSE); 1301 return 0; 1302 } 1303 1304 static int 1305 write_kbd(KBDC kbdc, int command, int data) 1306 { 1307 int s; 1308 1309 /* prevent the timeout routine from polling the keyboard */ 1310 if (!kbdc_lock(kbdc, TRUE)) 1311 return EBUSY; 1312 1313 /* disable the keyboard and mouse interrupt */ 1314 s = spltty(); 1315 #if 0 1316 c = get_controller_command_byte(kbdc); 1317 if ((c == -1) 1318 || !set_controller_command_byte(kbdc, 1319 kbdc_get_device_mask(kbdc), 1320 KBD_DISABLE_KBD_PORT | KBD_DISABLE_KBD_INT 1321 | KBD_DISABLE_AUX_PORT | KBD_DISABLE_AUX_INT)) { 1322 /* CONTROLLER ERROR */ 1323 kbdc_lock(kbdc, FALSE); 1324 splx(s); 1325 return EIO; 1326 } 1327 /* 1328 * Now that the keyboard controller is told not to generate 1329 * the keyboard and mouse interrupts, call `splx()' to allow 1330 * the other tty interrupts. The clock interrupt may also occur, 1331 * but the timeout routine (`scrn_timer()') will be blocked 1332 * by the lock flag set via `kbdc_lock()' 1333 */ 1334 splx(s); 1335 #endif 1336 1337 if (send_kbd_command_and_data(kbdc, command, data) != KBD_ACK) 1338 send_kbd_command(kbdc, KBDC_ENABLE_KBD); 1339 1340 #if 0 1341 /* restore the interrupts */ 1342 if (!set_controller_command_byte(kbdc, 1343 kbdc_get_device_mask(kbdc), 1344 c & (KBD_KBD_CONTROL_BITS | KBD_AUX_CONTROL_BITS))) { 1345 /* CONTROLLER ERROR */ 1346 } 1347 #else 1348 splx(s); 1349 #endif 1350 kbdc_lock(kbdc, FALSE); 1351 1352 return 0; 1353 } 1354 1355 static int 1356 get_kbd_id(KBDC kbdc) 1357 { 1358 int id1, id2; 1359 1360 empty_both_buffers(kbdc, 10); 1361 id1 = id2 = -1; 1362 if (send_kbd_command(kbdc, KBDC_SEND_DEV_ID) != KBD_ACK) 1363 return -1; 1364 1365 DELAY(10000); /* 10 msec delay */ 1366 id1 = read_kbd_data(kbdc); 1367 if (id1 != -1) 1368 id2 = read_kbd_data(kbdc); 1369 1370 if ((id1 == -1) || (id2 == -1)) { 1371 empty_both_buffers(kbdc, 10); 1372 test_controller(kbdc); 1373 test_kbd_port(kbdc); 1374 return -1; 1375 } 1376 return ((id2 << 8) | id1); 1377 } 1378 1379 static int delays[] = { 250, 500, 750, 1000 }; 1380 static int rates[] = { 34, 38, 42, 46, 50, 55, 59, 63, 1381 68, 76, 84, 92, 100, 110, 118, 126, 1382 136, 152, 168, 184, 200, 220, 236, 252, 1383 272, 304, 336, 368, 400, 440, 472, 504 }; 1384 1385 static int 1386 typematic_delay(int i) 1387 { 1388 return delays[(i >> 5) & 3]; 1389 } 1390 1391 static int 1392 typematic_rate(int i) 1393 { 1394 return rates[i & 0x1f]; 1395 } 1396 1397 static int 1398 typematic(int delay, int rate) 1399 { 1400 int value; 1401 int i; 1402 1403 for (i = sizeof(delays)/sizeof(delays[0]) - 1; i > 0; --i) { 1404 if (delay >= delays[i]) 1405 break; 1406 } 1407 value = i << 5; 1408 for (i = sizeof(rates)/sizeof(rates[0]) - 1; i > 0; --i) { 1409 if (rate >= rates[i]) 1410 break; 1411 } 1412 value |= i; 1413 return value; 1414 } 1415