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 */ 27 28 #include <sys/cdefs.h> 29 __FBSDID("$FreeBSD$"); 30 31 #include "opt_kbd.h" 32 #include "opt_atkbd.h" 33 34 #include <sys/param.h> 35 #include <sys/systm.h> 36 #include <sys/kernel.h> 37 #include <sys/bus.h> 38 #include <sys/proc.h> 39 #include <sys/limits.h> 40 #include <sys/malloc.h> 41 42 #include <machine/bus.h> 43 #include <machine/resource.h> 44 45 #ifdef __i386__ 46 #include <machine/md_var.h> 47 #include <machine/psl.h> 48 #include <machine/vm86.h> 49 #include <machine/pc/bios.h> 50 51 #include <vm/vm.h> 52 #include <vm/pmap.h> 53 #include <vm/vm_param.h> 54 #endif /* __i386__ */ 55 56 #include <sys/kbio.h> 57 #include <dev/kbd/kbdreg.h> 58 #include <dev/kbd/atkbdreg.h> 59 #include <dev/kbd/atkbdcreg.h> 60 61 #include <isa/isareg.h> 62 63 static timeout_t atkbd_timeout; 64 65 int 66 atkbd_probe_unit(int unit, int ctlr, int irq, int flags) 67 { 68 keyboard_switch_t *sw; 69 int args[2]; 70 int error; 71 72 sw = kbd_get_switch(ATKBD_DRIVER_NAME); 73 if (sw == NULL) 74 return ENXIO; 75 76 args[0] = ctlr; 77 args[1] = irq; 78 error = (*sw->probe)(unit, args, flags); 79 if (error) 80 return error; 81 return 0; 82 } 83 84 int 85 atkbd_attach_unit(int unit, keyboard_t **kbd, int ctlr, int irq, int flags) 86 { 87 keyboard_switch_t *sw; 88 int args[2]; 89 int error; 90 91 sw = kbd_get_switch(ATKBD_DRIVER_NAME); 92 if (sw == NULL) 93 return ENXIO; 94 95 /* reset, initialize and enable the device */ 96 args[0] = ctlr; 97 args[1] = irq; 98 *kbd = NULL; 99 error = (*sw->probe)(unit, args, flags); 100 if (error) 101 return error; 102 error = (*sw->init)(unit, kbd, args, flags); 103 if (error) 104 return error; 105 (*sw->enable)(*kbd); 106 107 #ifdef KBD_INSTALL_CDEV 108 /* attach a virtual keyboard cdev */ 109 error = kbd_attach(*kbd); 110 if (error) 111 return error; 112 #endif 113 114 /* 115 * This is a kludge to compensate for lost keyboard interrupts. 116 * A similar code used to be in syscons. See below. XXX 117 */ 118 atkbd_timeout(*kbd); 119 120 if (bootverbose) 121 (*sw->diag)(*kbd, bootverbose); 122 return 0; 123 } 124 125 static void 126 atkbd_timeout(void *arg) 127 { 128 keyboard_t *kbd; 129 int s; 130 131 /* 132 * The original text of the following comments are extracted 133 * from syscons.c (1.287) 134 * 135 * With release 2.1 of the Xaccel server, the keyboard is left 136 * hanging pretty often. Apparently an interrupt from the 137 * keyboard is lost, and I don't know why (yet). 138 * This ugly hack calls the low-level interrupt routine if input 139 * is ready for the keyboard and conveniently hides the problem. XXX 140 * 141 * Try removing anything stuck in the keyboard controller; whether 142 * it's a keyboard scan code or mouse data. The low-level 143 * interrupt routine doesn't read the mouse data directly, 144 * but the keyboard controller driver will, as a side effect. 145 */ 146 /* 147 * And here is bde's original comment about this: 148 * 149 * This is necessary to handle edge triggered interrupts - if we 150 * returned when our IRQ is high due to unserviced input, then there 151 * would be no more keyboard IRQs until the keyboard is reset by 152 * external powers. 153 * 154 * The keyboard apparently unwedges the irq in most cases. 155 */ 156 s = spltty(); 157 kbd = (keyboard_t *)arg; 158 if ((*kbdsw[kbd->kb_index]->lock)(kbd, TRUE)) { 159 /* 160 * We have seen the lock flag is not set. Let's reset 161 * the flag early, otherwise the LED update routine fails 162 * which may want the lock during the interrupt routine. 163 */ 164 (*kbdsw[kbd->kb_index]->lock)(kbd, FALSE); 165 if ((*kbdsw[kbd->kb_index]->check_char)(kbd)) 166 (*kbdsw[kbd->kb_index]->intr)(kbd, NULL); 167 } 168 splx(s); 169 timeout(atkbd_timeout, arg, hz/10); 170 } 171 172 /* LOW-LEVEL */ 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 static 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 <dev/kbd/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_disabled("atkbd", ATKBD_DEFAULT)) { 284 i = kbd_find_keyboard(ATKBD_DRIVER_NAME, ATKBD_DEFAULT); 285 if (i >= 0) { 286 kbd = kbd_get_keyboard(i); 287 kbd_unregister(kbd); 288 kbd->kb_flags &= ~KB_REGISTERED; 289 } 290 return 0; 291 } 292 293 /* XXX: a kludge to obtain the device configuration flags */ 294 if (resource_int_value("atkbd", ATKBD_DEFAULT, "flags", &i) == 0) 295 flags |= i; 296 297 /* probe the default keyboard */ 298 arg[0] = -1; 299 arg[1] = -1; 300 kbd = NULL; 301 if (atkbd_probe(ATKBD_DEFAULT, arg, flags)) 302 return 0; 303 if (atkbd_init(ATKBD_DEFAULT, &kbd, arg, flags)) 304 return 0; 305 306 /* return the number of found keyboards */ 307 return 1; 308 } 309 310 /* low-level functions */ 311 312 /* detect a keyboard */ 313 static int 314 atkbd_probe(int unit, void *arg, int flags) 315 { 316 KBDC kbdc; 317 int *data = (int *)arg; /* data[0]: controller, data[1]: irq */ 318 319 /* XXX */ 320 if (unit == ATKBD_DEFAULT) { 321 if (KBD_IS_PROBED(&default_kbd)) 322 return 0; 323 } 324 325 kbdc = atkbdc_open(data[0]); 326 if (kbdc == NULL) 327 return ENXIO; 328 if (probe_keyboard(kbdc, flags)) { 329 if (flags & KB_CONF_FAIL_IF_NO_KBD) 330 return ENXIO; 331 } 332 return 0; 333 } 334 335 /* reset and initialize the device */ 336 static int 337 atkbd_init(int unit, keyboard_t **kbdp, void *arg, int flags) 338 { 339 keyboard_t *kbd; 340 atkbd_state_t *state; 341 keymap_t *keymap; 342 accentmap_t *accmap; 343 fkeytab_t *fkeymap; 344 int fkeymap_size; 345 int delay[2]; 346 int *data = (int *)arg; /* data[0]: controller, data[1]: irq */ 347 348 /* XXX */ 349 if (unit == ATKBD_DEFAULT) { 350 *kbdp = kbd = &default_kbd; 351 if (KBD_IS_INITIALIZED(kbd) && KBD_IS_CONFIGURED(kbd)) 352 return 0; 353 state = &default_kbd_state; 354 keymap = &default_keymap; 355 accmap = &default_accentmap; 356 fkeymap = default_fkeytab; 357 fkeymap_size = 358 sizeof(default_fkeytab)/sizeof(default_fkeytab[0]); 359 } else if (*kbdp == NULL) { 360 *kbdp = kbd = malloc(sizeof(*kbd), M_DEVBUF, M_NOWAIT | M_ZERO); 361 state = malloc(sizeof(*state), M_DEVBUF, M_NOWAIT | M_ZERO); 362 keymap = malloc(sizeof(key_map), M_DEVBUF, M_NOWAIT); 363 accmap = malloc(sizeof(accent_map), M_DEVBUF, M_NOWAIT); 364 fkeymap = malloc(sizeof(fkey_tab), M_DEVBUF, M_NOWAIT); 365 fkeymap_size = sizeof(fkey_tab)/sizeof(fkey_tab[0]); 366 if ((kbd == NULL) || (state == NULL) || (keymap == NULL) 367 || (accmap == NULL) || (fkeymap == NULL)) { 368 if (state != NULL) 369 free(state, M_DEVBUF); 370 if (keymap != NULL) 371 free(keymap, M_DEVBUF); 372 if (accmap != NULL) 373 free(accmap, M_DEVBUF); 374 if (fkeymap != NULL) 375 free(fkeymap, M_DEVBUF); 376 if (kbd != NULL) 377 free(kbd, M_DEVBUF); 378 return ENOMEM; 379 } 380 } else if (KBD_IS_INITIALIZED(*kbdp) && KBD_IS_CONFIGURED(*kbdp)) { 381 return 0; 382 } else { 383 kbd = *kbdp; 384 state = (atkbd_state_t *)kbd->kb_data; 385 bzero(state, sizeof(*state)); 386 keymap = kbd->kb_keymap; 387 accmap = kbd->kb_accentmap; 388 fkeymap = kbd->kb_fkeytab; 389 fkeymap_size = kbd->kb_fkeytab_size; 390 } 391 392 if (!KBD_IS_PROBED(kbd)) { 393 state->kbdc = atkbdc_open(data[0]); 394 if (state->kbdc == NULL) 395 return ENXIO; 396 kbd_init_struct(kbd, ATKBD_DRIVER_NAME, KB_OTHER, unit, flags, 397 0, 0); 398 bcopy(&key_map, keymap, sizeof(key_map)); 399 bcopy(&accent_map, accmap, sizeof(accent_map)); 400 bcopy(fkey_tab, fkeymap, 401 imin(fkeymap_size*sizeof(fkeymap[0]), sizeof(fkey_tab))); 402 kbd_set_maps(kbd, keymap, accmap, fkeymap, fkeymap_size); 403 kbd->kb_data = (void *)state; 404 405 if (probe_keyboard(state->kbdc, flags)) { /* shouldn't happen */ 406 if (flags & KB_CONF_FAIL_IF_NO_KBD) 407 return ENXIO; 408 } else { 409 KBD_FOUND_DEVICE(kbd); 410 } 411 atkbd_clear_state(kbd); 412 state->ks_mode = K_XLATE; 413 /* 414 * FIXME: set the initial value for lock keys in ks_state 415 * according to the BIOS data? 416 */ 417 KBD_PROBE_DONE(kbd); 418 } 419 if (!KBD_IS_INITIALIZED(kbd) && !(flags & KB_CONF_PROBE_ONLY)) { 420 kbd->kb_config = flags & ~KB_CONF_PROBE_ONLY; 421 if (KBD_HAS_DEVICE(kbd) 422 && init_keyboard(state->kbdc, &kbd->kb_type, kbd->kb_config) 423 && (kbd->kb_config & KB_CONF_FAIL_IF_NO_KBD)) { 424 kbd_unregister(kbd); 425 return ENXIO; 426 } 427 atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state); 428 get_typematic(kbd); 429 delay[0] = kbd->kb_delay1; 430 delay[1] = kbd->kb_delay2; 431 atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay); 432 KBD_INIT_DONE(kbd); 433 } 434 if (!KBD_IS_CONFIGURED(kbd)) { 435 if (kbd_register(kbd) < 0) 436 return ENXIO; 437 KBD_CONFIG_DONE(kbd); 438 } 439 440 return 0; 441 } 442 443 /* finish using this keyboard */ 444 static int 445 atkbd_term(keyboard_t *kbd) 446 { 447 kbd_unregister(kbd); 448 return 0; 449 } 450 451 /* keyboard interrupt routine */ 452 static int 453 atkbd_intr(keyboard_t *kbd, void *arg) 454 { 455 atkbd_state_t *state; 456 int delay[2]; 457 int c; 458 459 if (KBD_IS_ACTIVE(kbd) && KBD_IS_BUSY(kbd)) { 460 /* let the callback function to process the input */ 461 (*kbd->kb_callback.kc_func)(kbd, KBDIO_KEYINPUT, 462 kbd->kb_callback.kc_arg); 463 } else { 464 /* read and discard the input; no one is waiting for input */ 465 do { 466 c = atkbd_read_char(kbd, FALSE); 467 } while (c != NOKEY); 468 469 if (!KBD_HAS_DEVICE(kbd)) { 470 /* 471 * The keyboard was not detected before; 472 * it must have been reconnected! 473 */ 474 state = (atkbd_state_t *)kbd->kb_data; 475 init_keyboard(state->kbdc, &kbd->kb_type, 476 kbd->kb_config); 477 atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state); 478 get_typematic(kbd); 479 delay[0] = kbd->kb_delay1; 480 delay[1] = kbd->kb_delay2; 481 atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay); 482 KBD_FOUND_DEVICE(kbd); 483 } 484 } 485 return 0; 486 } 487 488 /* test the interface to the device */ 489 static int 490 atkbd_test_if(keyboard_t *kbd) 491 { 492 int error; 493 int s; 494 495 error = 0; 496 empty_both_buffers(((atkbd_state_t *)kbd->kb_data)->kbdc, 10); 497 s = spltty(); 498 if (!test_controller(((atkbd_state_t *)kbd->kb_data)->kbdc)) 499 error = EIO; 500 else if (test_kbd_port(((atkbd_state_t *)kbd->kb_data)->kbdc) != 0) 501 error = EIO; 502 splx(s); 503 504 return error; 505 } 506 507 /* 508 * Enable the access to the device; until this function is called, 509 * the client cannot read from the keyboard. 510 */ 511 static int 512 atkbd_enable(keyboard_t *kbd) 513 { 514 int s; 515 516 s = spltty(); 517 KBD_ACTIVATE(kbd); 518 splx(s); 519 return 0; 520 } 521 522 /* disallow the access to the device */ 523 static int 524 atkbd_disable(keyboard_t *kbd) 525 { 526 int s; 527 528 s = spltty(); 529 KBD_DEACTIVATE(kbd); 530 splx(s); 531 return 0; 532 } 533 534 /* read one byte from the keyboard if it's allowed */ 535 static int 536 atkbd_read(keyboard_t *kbd, int wait) 537 { 538 int c; 539 540 if (wait) 541 c = read_kbd_data(((atkbd_state_t *)kbd->kb_data)->kbdc); 542 else 543 c = read_kbd_data_no_wait(((atkbd_state_t *)kbd->kb_data)->kbdc); 544 if (c != -1) 545 ++kbd->kb_count; 546 return (KBD_IS_ACTIVE(kbd) ? c : -1); 547 } 548 549 /* check if data is waiting */ 550 static int 551 atkbd_check(keyboard_t *kbd) 552 { 553 if (!KBD_IS_ACTIVE(kbd)) 554 return FALSE; 555 return kbdc_data_ready(((atkbd_state_t *)kbd->kb_data)->kbdc); 556 } 557 558 /* read char from the keyboard */ 559 static u_int 560 atkbd_read_char(keyboard_t *kbd, int wait) 561 { 562 atkbd_state_t *state; 563 u_int action; 564 int scancode; 565 int keycode; 566 567 state = (atkbd_state_t *)kbd->kb_data; 568 next_code: 569 /* do we have a composed char to return? */ 570 if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0)) { 571 action = state->ks_composed_char; 572 state->ks_composed_char = 0; 573 if (action > UCHAR_MAX) 574 return ERRKEY; 575 return action; 576 } 577 578 /* see if there is something in the keyboard port */ 579 if (wait) { 580 do { 581 scancode = read_kbd_data(state->kbdc); 582 } while (scancode == -1); 583 } else { 584 scancode = read_kbd_data_no_wait(state->kbdc); 585 if (scancode == -1) 586 return NOKEY; 587 } 588 ++kbd->kb_count; 589 590 #if KBDIO_DEBUG >= 10 591 printf("atkbd_read_char(): scancode:0x%x\n", scancode); 592 #endif 593 594 /* return the byte as is for the K_RAW mode */ 595 if (state->ks_mode == K_RAW) 596 return scancode; 597 598 /* translate the scan code into a keycode */ 599 keycode = scancode & 0x7F; 600 switch (state->ks_prefix) { 601 case 0x00: /* normal scancode */ 602 switch(scancode) { 603 case 0xB8: /* left alt (compose key) released */ 604 if (state->ks_flags & COMPOSE) { 605 state->ks_flags &= ~COMPOSE; 606 if (state->ks_composed_char > UCHAR_MAX) 607 state->ks_composed_char = 0; 608 } 609 break; 610 case 0x38: /* left alt (compose key) pressed */ 611 if (!(state->ks_flags & COMPOSE)) { 612 state->ks_flags |= COMPOSE; 613 state->ks_composed_char = 0; 614 } 615 break; 616 case 0xE0: 617 case 0xE1: 618 state->ks_prefix = scancode; 619 goto next_code; 620 } 621 break; 622 case 0xE0: /* 0xE0 prefix */ 623 state->ks_prefix = 0; 624 switch (keycode) { 625 case 0x1C: /* right enter key */ 626 keycode = 0x59; 627 break; 628 case 0x1D: /* right ctrl key */ 629 keycode = 0x5A; 630 break; 631 case 0x35: /* keypad divide key */ 632 keycode = 0x5B; 633 break; 634 case 0x37: /* print scrn key */ 635 keycode = 0x5C; 636 break; 637 case 0x38: /* right alt key (alt gr) */ 638 keycode = 0x5D; 639 break; 640 case 0x46: /* ctrl-pause/break on AT 101 (see below) */ 641 keycode = 0x68; 642 break; 643 case 0x47: /* grey home key */ 644 keycode = 0x5E; 645 break; 646 case 0x48: /* grey up arrow key */ 647 keycode = 0x5F; 648 break; 649 case 0x49: /* grey page up key */ 650 keycode = 0x60; 651 break; 652 case 0x4B: /* grey left arrow key */ 653 keycode = 0x61; 654 break; 655 case 0x4D: /* grey right arrow key */ 656 keycode = 0x62; 657 break; 658 case 0x4F: /* grey end key */ 659 keycode = 0x63; 660 break; 661 case 0x50: /* grey down arrow key */ 662 keycode = 0x64; 663 break; 664 case 0x51: /* grey page down key */ 665 keycode = 0x65; 666 break; 667 case 0x52: /* grey insert key */ 668 keycode = 0x66; 669 break; 670 case 0x53: /* grey delete key */ 671 keycode = 0x67; 672 break; 673 /* the following 3 are only used on the MS "Natural" keyboard */ 674 case 0x5b: /* left Window key */ 675 keycode = 0x69; 676 break; 677 case 0x5c: /* right Window key */ 678 keycode = 0x6a; 679 break; 680 case 0x5d: /* menu key */ 681 keycode = 0x6b; 682 break; 683 case 0x5e: /* power key */ 684 keycode = 0x6d; 685 break; 686 case 0x5f: /* sleep key */ 687 keycode = 0x6e; 688 break; 689 case 0x63: /* wake key */ 690 keycode = 0x6f; 691 break; 692 default: /* ignore everything else */ 693 goto next_code; 694 } 695 break; 696 case 0xE1: /* 0xE1 prefix */ 697 /* 698 * The pause/break key on the 101 keyboard produces: 699 * E1-1D-45 E1-9D-C5 700 * Ctrl-pause/break produces: 701 * E0-46 E0-C6 (See above.) 702 */ 703 state->ks_prefix = 0; 704 if (keycode == 0x1D) 705 state->ks_prefix = 0x1D; 706 goto next_code; 707 /* NOT REACHED */ 708 case 0x1D: /* pause / break */ 709 state->ks_prefix = 0; 710 if (keycode != 0x45) 711 goto next_code; 712 keycode = 0x68; 713 break; 714 } 715 716 if (kbd->kb_type == KB_84) { 717 switch (keycode) { 718 case 0x37: /* *(numpad)/print screen */ 719 if (state->ks_flags & SHIFTS) 720 keycode = 0x5c; /* print screen */ 721 break; 722 case 0x45: /* num lock/pause */ 723 if (state->ks_flags & CTLS) 724 keycode = 0x68; /* pause */ 725 break; 726 case 0x46: /* scroll lock/break */ 727 if (state->ks_flags & CTLS) 728 keycode = 0x6c; /* break */ 729 break; 730 } 731 } else if (kbd->kb_type == KB_101) { 732 switch (keycode) { 733 case 0x5c: /* print screen */ 734 if (state->ks_flags & ALTS) 735 keycode = 0x54; /* sysrq */ 736 break; 737 case 0x68: /* pause/break */ 738 if (state->ks_flags & CTLS) 739 keycode = 0x6c; /* break */ 740 break; 741 } 742 } 743 744 /* return the key code in the K_CODE mode */ 745 if (state->ks_mode == K_CODE) 746 return (keycode | (scancode & 0x80)); 747 748 /* compose a character code */ 749 if (state->ks_flags & COMPOSE) { 750 switch (keycode | (scancode & 0x80)) { 751 /* key pressed, process it */ 752 case 0x47: case 0x48: case 0x49: /* keypad 7,8,9 */ 753 state->ks_composed_char *= 10; 754 state->ks_composed_char += keycode - 0x40; 755 if (state->ks_composed_char > UCHAR_MAX) 756 return ERRKEY; 757 goto next_code; 758 case 0x4B: case 0x4C: case 0x4D: /* keypad 4,5,6 */ 759 state->ks_composed_char *= 10; 760 state->ks_composed_char += keycode - 0x47; 761 if (state->ks_composed_char > UCHAR_MAX) 762 return ERRKEY; 763 goto next_code; 764 case 0x4F: case 0x50: case 0x51: /* keypad 1,2,3 */ 765 state->ks_composed_char *= 10; 766 state->ks_composed_char += keycode - 0x4E; 767 if (state->ks_composed_char > UCHAR_MAX) 768 return ERRKEY; 769 goto next_code; 770 case 0x52: /* keypad 0 */ 771 state->ks_composed_char *= 10; 772 if (state->ks_composed_char > UCHAR_MAX) 773 return ERRKEY; 774 goto next_code; 775 776 /* key released, no interest here */ 777 case 0xC7: case 0xC8: case 0xC9: /* keypad 7,8,9 */ 778 case 0xCB: case 0xCC: case 0xCD: /* keypad 4,5,6 */ 779 case 0xCF: case 0xD0: case 0xD1: /* keypad 1,2,3 */ 780 case 0xD2: /* keypad 0 */ 781 goto next_code; 782 783 case 0x38: /* left alt key */ 784 break; 785 786 default: 787 if (state->ks_composed_char > 0) { 788 state->ks_flags &= ~COMPOSE; 789 state->ks_composed_char = 0; 790 return ERRKEY; 791 } 792 break; 793 } 794 } 795 796 /* keycode to key action */ 797 action = genkbd_keyaction(kbd, keycode, scancode & 0x80, 798 &state->ks_state, &state->ks_accents); 799 if (action == NOKEY) 800 goto next_code; 801 else 802 return action; 803 } 804 805 /* check if char is waiting */ 806 static int 807 atkbd_check_char(keyboard_t *kbd) 808 { 809 atkbd_state_t *state; 810 811 if (!KBD_IS_ACTIVE(kbd)) 812 return FALSE; 813 state = (atkbd_state_t *)kbd->kb_data; 814 if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0)) 815 return TRUE; 816 return kbdc_data_ready(state->kbdc); 817 } 818 819 /* some useful control functions */ 820 static int 821 atkbd_ioctl(keyboard_t *kbd, u_long cmd, caddr_t arg) 822 { 823 /* trasnlate LED_XXX bits into the device specific bits */ 824 static u_char ledmap[8] = { 825 0, 4, 2, 6, 1, 5, 3, 7, 826 }; 827 atkbd_state_t *state = kbd->kb_data; 828 int error; 829 int s; 830 int i; 831 832 s = spltty(); 833 switch (cmd) { 834 835 case KDGKBMODE: /* get keyboard mode */ 836 *(int *)arg = state->ks_mode; 837 break; 838 case KDSKBMODE: /* set keyboard mode */ 839 switch (*(int *)arg) { 840 case K_XLATE: 841 if (state->ks_mode != K_XLATE) { 842 /* make lock key state and LED state match */ 843 state->ks_state &= ~LOCK_MASK; 844 state->ks_state |= KBD_LED_VAL(kbd); 845 } 846 /* FALLTHROUGH */ 847 case K_RAW: 848 case K_CODE: 849 if (state->ks_mode != *(int *)arg) { 850 atkbd_clear_state(kbd); 851 state->ks_mode = *(int *)arg; 852 } 853 break; 854 default: 855 splx(s); 856 return EINVAL; 857 } 858 break; 859 860 case KDGETLED: /* get keyboard LED */ 861 *(int *)arg = KBD_LED_VAL(kbd); 862 break; 863 case KDSETLED: /* set keyboard LED */ 864 /* NOTE: lock key state in ks_state won't be changed */ 865 if (*(int *)arg & ~LOCK_MASK) { 866 splx(s); 867 return EINVAL; 868 } 869 i = *(int *)arg; 870 /* replace CAPS LED with ALTGR LED for ALTGR keyboards */ 871 if (state->ks_mode == K_XLATE && 872 kbd->kb_keymap->n_keys > ALTGR_OFFSET) { 873 if (i & ALKED) 874 i |= CLKED; 875 else 876 i &= ~CLKED; 877 } 878 if (KBD_HAS_DEVICE(kbd)) { 879 error = write_kbd(state->kbdc, KBDC_SET_LEDS, 880 ledmap[i & LED_MASK]); 881 if (error) { 882 splx(s); 883 return error; 884 } 885 } 886 KBD_LED_VAL(kbd) = *(int *)arg; 887 break; 888 889 case KDGKBSTATE: /* get lock key state */ 890 *(int *)arg = state->ks_state & LOCK_MASK; 891 break; 892 case KDSKBSTATE: /* set lock key state */ 893 if (*(int *)arg & ~LOCK_MASK) { 894 splx(s); 895 return EINVAL; 896 } 897 state->ks_state &= ~LOCK_MASK; 898 state->ks_state |= *(int *)arg; 899 splx(s); 900 /* set LEDs and quit */ 901 return atkbd_ioctl(kbd, KDSETLED, arg); 902 903 case KDSETREPEAT: /* set keyboard repeat rate (new interface) */ 904 splx(s); 905 if (!KBD_HAS_DEVICE(kbd)) 906 return 0; 907 i = typematic(((int *)arg)[0], ((int *)arg)[1]); 908 error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, i); 909 if (error == 0) { 910 kbd->kb_delay1 = typematic_delay(i); 911 kbd->kb_delay2 = typematic_rate(i); 912 } 913 return error; 914 915 case KDSETRAD: /* set keyboard repeat rate (old interface) */ 916 splx(s); 917 if (!KBD_HAS_DEVICE(kbd)) 918 return 0; 919 error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, *(int *)arg); 920 if (error == 0) { 921 kbd->kb_delay1 = typematic_delay(*(int *)arg); 922 kbd->kb_delay2 = typematic_rate(*(int *)arg); 923 } 924 return error; 925 926 case PIO_KEYMAP: /* set keyboard translation table */ 927 case PIO_KEYMAPENT: /* set keyboard translation table entry */ 928 case PIO_DEADKEYMAP: /* set accent key translation table */ 929 state->ks_accents = 0; 930 /* FALLTHROUGH */ 931 default: 932 splx(s); 933 return genkbd_commonioctl(kbd, cmd, arg); 934 } 935 936 splx(s); 937 return 0; 938 } 939 940 /* lock the access to the keyboard */ 941 static int 942 atkbd_lock(keyboard_t *kbd, int lock) 943 { 944 return kbdc_lock(((atkbd_state_t *)kbd->kb_data)->kbdc, lock); 945 } 946 947 /* clear the internal state of the keyboard */ 948 static void 949 atkbd_clear_state(keyboard_t *kbd) 950 { 951 atkbd_state_t *state; 952 953 state = (atkbd_state_t *)kbd->kb_data; 954 state->ks_flags = 0; 955 state->ks_polling = 0; 956 state->ks_state &= LOCK_MASK; /* preserve locking key state */ 957 state->ks_accents = 0; 958 state->ks_composed_char = 0; 959 #if 0 960 state->ks_prefix = 0; /* XXX */ 961 #endif 962 } 963 964 /* save the internal state */ 965 static int 966 atkbd_get_state(keyboard_t *kbd, void *buf, size_t len) 967 { 968 if (len == 0) 969 return sizeof(atkbd_state_t); 970 if (len < sizeof(atkbd_state_t)) 971 return -1; 972 bcopy(kbd->kb_data, buf, sizeof(atkbd_state_t)); 973 return 0; 974 } 975 976 /* set the internal state */ 977 static int 978 atkbd_set_state(keyboard_t *kbd, void *buf, size_t len) 979 { 980 if (len < sizeof(atkbd_state_t)) 981 return ENOMEM; 982 if (((atkbd_state_t *)kbd->kb_data)->kbdc 983 != ((atkbd_state_t *)buf)->kbdc) 984 return ENOMEM; 985 bcopy(buf, kbd->kb_data, sizeof(atkbd_state_t)); 986 return 0; 987 } 988 989 static int 990 atkbd_poll(keyboard_t *kbd, int on) 991 { 992 atkbd_state_t *state; 993 int s; 994 995 state = (atkbd_state_t *)kbd->kb_data; 996 s = spltty(); 997 if (on) 998 ++state->ks_polling; 999 else 1000 --state->ks_polling; 1001 splx(s); 1002 return 0; 1003 } 1004 1005 /* local functions */ 1006 1007 static int 1008 get_typematic(keyboard_t *kbd) 1009 { 1010 #ifdef __i386__ 1011 /* 1012 * Only some systems allow us to retrieve the keyboard repeat 1013 * rate previously set via the BIOS... 1014 */ 1015 struct vm86frame vmf; 1016 u_int32_t p; 1017 1018 bzero(&vmf, sizeof(vmf)); 1019 vmf.vmf_ax = 0xc000; 1020 vm86_intcall(0x15, &vmf); 1021 if ((vmf.vmf_eflags & PSL_C) || vmf.vmf_ah) 1022 return ENODEV; 1023 p = BIOS_PADDRTOVADDR(((u_int32_t)vmf.vmf_es << 4) + vmf.vmf_bx); 1024 if ((readb(p + 6) & 0x40) == 0) /* int 16, function 0x09 supported? */ 1025 return ENODEV; 1026 vmf.vmf_ax = 0x0900; 1027 vm86_intcall(0x16, &vmf); 1028 if ((vmf.vmf_al & 0x08) == 0) /* int 16, function 0x0306 supported? */ 1029 return ENODEV; 1030 vmf.vmf_ax = 0x0306; 1031 vm86_intcall(0x16, &vmf); 1032 kbd->kb_delay1 = typematic_delay(vmf.vmf_bh << 5); 1033 kbd->kb_delay2 = typematic_rate(vmf.vmf_bl); 1034 return 0; 1035 #else 1036 return ENODEV; 1037 #endif /* __i386__ */ 1038 } 1039 1040 static int 1041 setup_kbd_port(KBDC kbdc, int port, int intr) 1042 { 1043 if (!set_controller_command_byte(kbdc, 1044 KBD_KBD_CONTROL_BITS, 1045 ((port) ? KBD_ENABLE_KBD_PORT : KBD_DISABLE_KBD_PORT) 1046 | ((intr) ? KBD_ENABLE_KBD_INT : KBD_DISABLE_KBD_INT))) 1047 return 1; 1048 return 0; 1049 } 1050 1051 static int 1052 get_kbd_echo(KBDC kbdc) 1053 { 1054 /* enable the keyboard port, but disable the keyboard intr. */ 1055 if (setup_kbd_port(kbdc, TRUE, FALSE)) 1056 /* CONTROLLER ERROR: there is very little we can do... */ 1057 return ENXIO; 1058 1059 /* see if something is present */ 1060 write_kbd_command(kbdc, KBDC_ECHO); 1061 if (read_kbd_data(kbdc) != KBD_ECHO) { 1062 empty_both_buffers(kbdc, 10); 1063 test_controller(kbdc); 1064 test_kbd_port(kbdc); 1065 return ENXIO; 1066 } 1067 1068 /* enable the keyboard port and intr. */ 1069 if (setup_kbd_port(kbdc, TRUE, TRUE)) { 1070 /* 1071 * CONTROLLER ERROR 1072 * This is serious; the keyboard intr is left disabled! 1073 */ 1074 return ENXIO; 1075 } 1076 1077 return 0; 1078 } 1079 1080 static int 1081 probe_keyboard(KBDC kbdc, int flags) 1082 { 1083 /* 1084 * Don't try to print anything in this function. The low-level 1085 * console may not have been initialized yet... 1086 */ 1087 int err; 1088 int c; 1089 int m; 1090 1091 if (!kbdc_lock(kbdc, TRUE)) { 1092 /* driver error? */ 1093 return ENXIO; 1094 } 1095 1096 /* temporarily block data transmission from the keyboard */ 1097 write_controller_command(kbdc, KBDC_DISABLE_KBD_PORT); 1098 1099 /* flush any noise in the buffer */ 1100 empty_both_buffers(kbdc, 100); 1101 1102 /* save the current keyboard controller command byte */ 1103 m = kbdc_get_device_mask(kbdc) & ~KBD_KBD_CONTROL_BITS; 1104 c = get_controller_command_byte(kbdc); 1105 if (c == -1) { 1106 /* CONTROLLER ERROR */ 1107 kbdc_set_device_mask(kbdc, m); 1108 kbdc_lock(kbdc, FALSE); 1109 return ENXIO; 1110 } 1111 1112 /* 1113 * The keyboard may have been screwed up by the boot block. 1114 * We may just be able to recover from error by testing the controller 1115 * and the keyboard port. The controller command byte needs to be 1116 * saved before this recovery operation, as some controllers seem 1117 * to set the command byte to particular values. 1118 */ 1119 test_controller(kbdc); 1120 if (!(flags & KB_CONF_NO_PROBE_TEST)) 1121 test_kbd_port(kbdc); 1122 1123 err = get_kbd_echo(kbdc); 1124 1125 /* 1126 * Even if the keyboard doesn't seem to be present (err != 0), 1127 * we shall enable the keyboard port and interrupt so that 1128 * the driver will be operable when the keyboard is attached 1129 * to the system later. It is NOT recommended to hot-plug 1130 * the AT keyboard, but many people do so... 1131 */ 1132 kbdc_set_device_mask(kbdc, m | KBD_KBD_CONTROL_BITS); 1133 setup_kbd_port(kbdc, TRUE, TRUE); 1134 #if 0 1135 if (err == 0) { 1136 kbdc_set_device_mask(kbdc, m | KBD_KBD_CONTROL_BITS); 1137 } else { 1138 /* try to restore the command byte as before */ 1139 set_controller_command_byte(kbdc, 0xff, c); 1140 kbdc_set_device_mask(kbdc, m); 1141 } 1142 #endif 1143 1144 kbdc_lock(kbdc, FALSE); 1145 return err; 1146 } 1147 1148 static int 1149 init_keyboard(KBDC kbdc, int *type, int flags) 1150 { 1151 int codeset; 1152 int id; 1153 int c; 1154 1155 if (!kbdc_lock(kbdc, TRUE)) { 1156 /* driver error? */ 1157 return EIO; 1158 } 1159 1160 /* temporarily block data transmission from the keyboard */ 1161 write_controller_command(kbdc, KBDC_DISABLE_KBD_PORT); 1162 1163 /* save the current controller command byte */ 1164 empty_both_buffers(kbdc, 200); 1165 c = get_controller_command_byte(kbdc); 1166 if (c == -1) { 1167 /* CONTROLLER ERROR */ 1168 kbdc_lock(kbdc, FALSE); 1169 printf("atkbd: unable to get the current command byte value.\n"); 1170 return EIO; 1171 } 1172 if (bootverbose) 1173 printf("atkbd: the current kbd controller command byte %04x\n", 1174 c); 1175 #if 0 1176 /* override the keyboard lock switch */ 1177 c |= KBD_OVERRIDE_KBD_LOCK; 1178 #endif 1179 1180 /* enable the keyboard port, but disable the keyboard intr. */ 1181 if (setup_kbd_port(kbdc, TRUE, FALSE)) { 1182 /* CONTROLLER ERROR: there is very little we can do... */ 1183 printf("atkbd: unable to set the command byte.\n"); 1184 kbdc_lock(kbdc, FALSE); 1185 return EIO; 1186 } 1187 1188 /* 1189 * Check if we have an XT keyboard before we attempt to reset it. 1190 * The procedure assumes that the keyboard and the controller have 1191 * been set up properly by BIOS and have not been messed up 1192 * during the boot process. 1193 */ 1194 codeset = -1; 1195 if (flags & KB_CONF_ALT_SCANCODESET) 1196 /* the user says there is a XT keyboard */ 1197 codeset = 1; 1198 #ifdef KBD_DETECT_XT_KEYBOARD 1199 else if ((c & KBD_TRANSLATION) == 0) { 1200 /* SET_SCANCODE_SET is not always supported; ignore error */ 1201 if (send_kbd_command_and_data(kbdc, KBDC_SET_SCANCODE_SET, 0) 1202 == KBD_ACK) 1203 codeset = read_kbd_data(kbdc); 1204 } 1205 if (bootverbose) 1206 printf("atkbd: scancode set %d\n", codeset); 1207 #endif /* KBD_DETECT_XT_KEYBOARD */ 1208 1209 *type = KB_OTHER; 1210 id = get_kbd_id(kbdc); 1211 switch(id) { 1212 case 0x41ab: /* 101/102/... Enhanced */ 1213 case 0x83ab: /* ditto */ 1214 case 0x54ab: /* SpaceSaver */ 1215 case 0x84ab: /* ditto */ 1216 #if 0 1217 case 0x90ab: /* 'G' */ 1218 case 0x91ab: /* 'P' */ 1219 case 0x92ab: /* 'A' */ 1220 #endif 1221 *type = KB_101; 1222 break; 1223 case -1: /* AT 84 keyboard doesn't return ID */ 1224 *type = KB_84; 1225 break; 1226 default: 1227 break; 1228 } 1229 if (bootverbose) 1230 printf("atkbd: keyboard ID 0x%x (%d)\n", id, *type); 1231 1232 /* reset keyboard hardware */ 1233 if (!(flags & KB_CONF_NO_RESET) && !reset_kbd(kbdc)) { 1234 /* 1235 * KEYBOARD ERROR 1236 * Keyboard reset may fail either because the keyboard 1237 * doen't exist, or because the keyboard doesn't pass 1238 * the self-test, or the keyboard controller on the 1239 * motherboard and the keyboard somehow fail to shake hands. 1240 * It is just possible, particularly in the last case, 1241 * that the keyboard controller may be left in a hung state. 1242 * test_controller() and test_kbd_port() appear to bring 1243 * the keyboard controller back (I don't know why and how, 1244 * though.) 1245 */ 1246 empty_both_buffers(kbdc, 10); 1247 test_controller(kbdc); 1248 test_kbd_port(kbdc); 1249 /* 1250 * We could disable the keyboard port and interrupt... but, 1251 * the keyboard may still exist (see above). 1252 */ 1253 set_controller_command_byte(kbdc, 0xff, c); 1254 kbdc_lock(kbdc, FALSE); 1255 if (bootverbose) 1256 printf("atkbd: failed to reset the keyboard.\n"); 1257 return EIO; 1258 } 1259 1260 /* 1261 * Allow us to set the XT_KEYBD flag so that keyboards 1262 * such as those on the IBM ThinkPad laptop computers can be used 1263 * with the standard console driver. 1264 */ 1265 if (codeset == 1) { 1266 if (send_kbd_command_and_data(kbdc, 1267 KBDC_SET_SCANCODE_SET, codeset) == KBD_ACK) { 1268 /* XT kbd doesn't need scan code translation */ 1269 c &= ~KBD_TRANSLATION; 1270 } else { 1271 /* 1272 * KEYBOARD ERROR 1273 * The XT kbd isn't usable unless the proper scan 1274 * code set is selected. 1275 */ 1276 set_controller_command_byte(kbdc, 0xff, c); 1277 kbdc_lock(kbdc, FALSE); 1278 printf("atkbd: unable to set the XT keyboard mode.\n"); 1279 return EIO; 1280 } 1281 } 1282 1283 #ifdef __alpha__ 1284 if (send_kbd_command_and_data( 1285 kbdc, KBDC_SET_SCANCODE_SET, 2) != KBD_ACK) { 1286 printf("atkbd: can't set translation.\n"); 1287 1288 } 1289 c |= KBD_TRANSLATION; 1290 #endif 1291 1292 /* enable the keyboard port and intr. */ 1293 if (!set_controller_command_byte(kbdc, 1294 KBD_KBD_CONTROL_BITS | KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK, 1295 (c & (KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK)) 1296 | KBD_ENABLE_KBD_PORT | KBD_ENABLE_KBD_INT)) { 1297 /* 1298 * CONTROLLER ERROR 1299 * This is serious; we are left with the disabled 1300 * keyboard intr. 1301 */ 1302 set_controller_command_byte(kbdc, 0xff, c); 1303 kbdc_lock(kbdc, FALSE); 1304 printf("atkbd: unable to enable the keyboard port and intr.\n"); 1305 return EIO; 1306 } 1307 1308 kbdc_lock(kbdc, FALSE); 1309 return 0; 1310 } 1311 1312 static int 1313 write_kbd(KBDC kbdc, int command, int data) 1314 { 1315 int s; 1316 1317 /* prevent the timeout routine from polling the keyboard */ 1318 if (!kbdc_lock(kbdc, TRUE)) 1319 return EBUSY; 1320 1321 /* disable the keyboard and mouse interrupt */ 1322 s = spltty(); 1323 #if 0 1324 c = get_controller_command_byte(kbdc); 1325 if ((c == -1) 1326 || !set_controller_command_byte(kbdc, 1327 kbdc_get_device_mask(kbdc), 1328 KBD_DISABLE_KBD_PORT | KBD_DISABLE_KBD_INT 1329 | KBD_DISABLE_AUX_PORT | KBD_DISABLE_AUX_INT)) { 1330 /* CONTROLLER ERROR */ 1331 kbdc_lock(kbdc, FALSE); 1332 splx(s); 1333 return EIO; 1334 } 1335 /* 1336 * Now that the keyboard controller is told not to generate 1337 * the keyboard and mouse interrupts, call `splx()' to allow 1338 * the other tty interrupts. The clock interrupt may also occur, 1339 * but the timeout routine (`scrn_timer()') will be blocked 1340 * by the lock flag set via `kbdc_lock()' 1341 */ 1342 splx(s); 1343 #endif 1344 1345 if (send_kbd_command_and_data(kbdc, command, data) != KBD_ACK) 1346 send_kbd_command(kbdc, KBDC_ENABLE_KBD); 1347 1348 #if 0 1349 /* restore the interrupts */ 1350 if (!set_controller_command_byte(kbdc, 1351 kbdc_get_device_mask(kbdc), 1352 c & (KBD_KBD_CONTROL_BITS | KBD_AUX_CONTROL_BITS))) { 1353 /* CONTROLLER ERROR */ 1354 } 1355 #else 1356 splx(s); 1357 #endif 1358 kbdc_lock(kbdc, FALSE); 1359 1360 return 0; 1361 } 1362 1363 static int 1364 get_kbd_id(KBDC kbdc) 1365 { 1366 int id1, id2; 1367 1368 empty_both_buffers(kbdc, 10); 1369 id1 = id2 = -1; 1370 if (send_kbd_command(kbdc, KBDC_SEND_DEV_ID) != KBD_ACK) 1371 return -1; 1372 1373 DELAY(10000); /* 10 msec delay */ 1374 id1 = read_kbd_data(kbdc); 1375 if (id1 != -1) 1376 id2 = read_kbd_data(kbdc); 1377 1378 if ((id1 == -1) || (id2 == -1)) { 1379 empty_both_buffers(kbdc, 10); 1380 test_controller(kbdc); 1381 test_kbd_port(kbdc); 1382 return -1; 1383 } 1384 return ((id2 << 8) | id1); 1385 } 1386 1387 static int delays[] = { 250, 500, 750, 1000 }; 1388 static int rates[] = { 34, 38, 42, 46, 50, 55, 59, 63, 1389 68, 76, 84, 92, 100, 110, 118, 126, 1390 136, 152, 168, 184, 200, 220, 236, 252, 1391 272, 304, 336, 368, 400, 440, 472, 504 }; 1392 1393 static int 1394 typematic_delay(int i) 1395 { 1396 return delays[(i >> 5) & 3]; 1397 } 1398 1399 static int 1400 typematic_rate(int i) 1401 { 1402 return rates[i & 0x1f]; 1403 } 1404 1405 static int 1406 typematic(int delay, int rate) 1407 { 1408 int value; 1409 int i; 1410 1411 for (i = sizeof(delays)/sizeof(delays[0]) - 1; i > 0; --i) { 1412 if (delay >= delays[i]) 1413 break; 1414 } 1415 value = i << 5; 1416 for (i = sizeof(rates)/sizeof(rates[0]) - 1; i > 0; --i) { 1417 if (rate >= rates[i]) 1418 break; 1419 } 1420 value |= i; 1421 return value; 1422 } 1423