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 int error, needfree; 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 needfree = 0; 361 } else if (*kbdp == NULL) { 362 *kbdp = kbd = malloc(sizeof(*kbd), M_DEVBUF, M_NOWAIT | M_ZERO); 363 state = malloc(sizeof(*state), M_DEVBUF, M_NOWAIT | M_ZERO); 364 /* NB: these will always be initialized 'cuz !KBD_IS_PROBED */ 365 keymap = malloc(sizeof(key_map), M_DEVBUF, M_NOWAIT); 366 accmap = malloc(sizeof(accent_map), M_DEVBUF, M_NOWAIT); 367 fkeymap = malloc(sizeof(fkey_tab), M_DEVBUF, M_NOWAIT); 368 fkeymap_size = sizeof(fkey_tab)/sizeof(fkey_tab[0]); 369 needfree = 1; 370 if ((kbd == NULL) || (state == NULL) || (keymap == NULL) 371 || (accmap == NULL) || (fkeymap == NULL)) { 372 error = ENOMEM; 373 goto bad; 374 } 375 } else if (KBD_IS_INITIALIZED(*kbdp) && KBD_IS_CONFIGURED(*kbdp)) { 376 return 0; 377 } else { 378 kbd = *kbdp; 379 state = (atkbd_state_t *)kbd->kb_data; 380 bzero(state, sizeof(*state)); 381 keymap = kbd->kb_keymap; 382 accmap = kbd->kb_accentmap; 383 fkeymap = kbd->kb_fkeytab; 384 fkeymap_size = kbd->kb_fkeytab_size; 385 needfree = 0; 386 } 387 388 if (!KBD_IS_PROBED(kbd)) { 389 state->kbdc = atkbdc_open(data[0]); 390 if (state->kbdc == NULL) { 391 error = ENXIO; 392 goto bad; 393 } 394 kbd_init_struct(kbd, ATKBD_DRIVER_NAME, KB_OTHER, unit, flags, 395 0, 0); 396 bcopy(&key_map, keymap, sizeof(key_map)); 397 bcopy(&accent_map, accmap, sizeof(accent_map)); 398 bcopy(fkey_tab, fkeymap, 399 imin(fkeymap_size*sizeof(fkeymap[0]), sizeof(fkey_tab))); 400 kbd_set_maps(kbd, keymap, accmap, fkeymap, fkeymap_size); 401 kbd->kb_data = (void *)state; 402 403 if (probe_keyboard(state->kbdc, flags)) { /* shouldn't happen */ 404 if (flags & KB_CONF_FAIL_IF_NO_KBD) { 405 error = ENXIO; 406 goto bad; 407 } 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 error = ENXIO; 426 goto bad; 427 } 428 atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state); 429 get_typematic(kbd); 430 delay[0] = kbd->kb_delay1; 431 delay[1] = kbd->kb_delay2; 432 atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay); 433 KBD_INIT_DONE(kbd); 434 } 435 if (!KBD_IS_CONFIGURED(kbd)) { 436 if (kbd_register(kbd) < 0) { 437 error = ENXIO; 438 goto bad; 439 } 440 KBD_CONFIG_DONE(kbd); 441 } 442 443 return 0; 444 bad: 445 if (needfree) { 446 if (state != NULL) 447 free(state, M_DEVBUF); 448 if (keymap != NULL) 449 free(keymap, M_DEVBUF); 450 if (accmap != NULL) 451 free(accmap, M_DEVBUF); 452 if (fkeymap != NULL) 453 free(fkeymap, M_DEVBUF); 454 if (kbd != NULL) { 455 free(kbd, M_DEVBUF); 456 *kbdp = NULL; /* insure ref doesn't leak to caller */ 457 } 458 } 459 return error; 460 } 461 462 /* finish using this keyboard */ 463 static int 464 atkbd_term(keyboard_t *kbd) 465 { 466 kbd_unregister(kbd); 467 return 0; 468 } 469 470 /* keyboard interrupt routine */ 471 static int 472 atkbd_intr(keyboard_t *kbd, void *arg) 473 { 474 atkbd_state_t *state; 475 int delay[2]; 476 int c; 477 478 if (KBD_IS_ACTIVE(kbd) && KBD_IS_BUSY(kbd)) { 479 /* let the callback function to process the input */ 480 (*kbd->kb_callback.kc_func)(kbd, KBDIO_KEYINPUT, 481 kbd->kb_callback.kc_arg); 482 } else { 483 /* read and discard the input; no one is waiting for input */ 484 do { 485 c = atkbd_read_char(kbd, FALSE); 486 } while (c != NOKEY); 487 488 if (!KBD_HAS_DEVICE(kbd)) { 489 /* 490 * The keyboard was not detected before; 491 * it must have been reconnected! 492 */ 493 state = (atkbd_state_t *)kbd->kb_data; 494 init_keyboard(state->kbdc, &kbd->kb_type, 495 kbd->kb_config); 496 atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state); 497 get_typematic(kbd); 498 delay[0] = kbd->kb_delay1; 499 delay[1] = kbd->kb_delay2; 500 atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay); 501 KBD_FOUND_DEVICE(kbd); 502 } 503 } 504 return 0; 505 } 506 507 /* test the interface to the device */ 508 static int 509 atkbd_test_if(keyboard_t *kbd) 510 { 511 int error; 512 int s; 513 514 error = 0; 515 empty_both_buffers(((atkbd_state_t *)kbd->kb_data)->kbdc, 10); 516 s = spltty(); 517 if (!test_controller(((atkbd_state_t *)kbd->kb_data)->kbdc)) 518 error = EIO; 519 else if (test_kbd_port(((atkbd_state_t *)kbd->kb_data)->kbdc) != 0) 520 error = EIO; 521 splx(s); 522 523 return error; 524 } 525 526 /* 527 * Enable the access to the device; until this function is called, 528 * the client cannot read from the keyboard. 529 */ 530 static int 531 atkbd_enable(keyboard_t *kbd) 532 { 533 int s; 534 535 s = spltty(); 536 KBD_ACTIVATE(kbd); 537 splx(s); 538 return 0; 539 } 540 541 /* disallow the access to the device */ 542 static int 543 atkbd_disable(keyboard_t *kbd) 544 { 545 int s; 546 547 s = spltty(); 548 KBD_DEACTIVATE(kbd); 549 splx(s); 550 return 0; 551 } 552 553 /* read one byte from the keyboard if it's allowed */ 554 static int 555 atkbd_read(keyboard_t *kbd, int wait) 556 { 557 int c; 558 559 if (wait) 560 c = read_kbd_data(((atkbd_state_t *)kbd->kb_data)->kbdc); 561 else 562 c = read_kbd_data_no_wait(((atkbd_state_t *)kbd->kb_data)->kbdc); 563 if (c != -1) 564 ++kbd->kb_count; 565 return (KBD_IS_ACTIVE(kbd) ? c : -1); 566 } 567 568 /* check if data is waiting */ 569 static int 570 atkbd_check(keyboard_t *kbd) 571 { 572 if (!KBD_IS_ACTIVE(kbd)) 573 return FALSE; 574 return kbdc_data_ready(((atkbd_state_t *)kbd->kb_data)->kbdc); 575 } 576 577 /* read char from the keyboard */ 578 static u_int 579 atkbd_read_char(keyboard_t *kbd, int wait) 580 { 581 atkbd_state_t *state; 582 u_int action; 583 int scancode; 584 int keycode; 585 586 state = (atkbd_state_t *)kbd->kb_data; 587 next_code: 588 /* do we have a composed char to return? */ 589 if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0)) { 590 action = state->ks_composed_char; 591 state->ks_composed_char = 0; 592 if (action > UCHAR_MAX) 593 return ERRKEY; 594 return action; 595 } 596 597 /* see if there is something in the keyboard port */ 598 if (wait) { 599 do { 600 scancode = read_kbd_data(state->kbdc); 601 } while (scancode == -1); 602 } else { 603 scancode = read_kbd_data_no_wait(state->kbdc); 604 if (scancode == -1) 605 return NOKEY; 606 } 607 ++kbd->kb_count; 608 609 #if KBDIO_DEBUG >= 10 610 printf("atkbd_read_char(): scancode:0x%x\n", scancode); 611 #endif 612 613 /* return the byte as is for the K_RAW mode */ 614 if (state->ks_mode == K_RAW) 615 return scancode; 616 617 /* translate the scan code into a keycode */ 618 keycode = scancode & 0x7F; 619 switch (state->ks_prefix) { 620 case 0x00: /* normal scancode */ 621 switch(scancode) { 622 case 0xB8: /* left alt (compose key) released */ 623 if (state->ks_flags & COMPOSE) { 624 state->ks_flags &= ~COMPOSE; 625 if (state->ks_composed_char > UCHAR_MAX) 626 state->ks_composed_char = 0; 627 } 628 break; 629 case 0x38: /* left alt (compose key) pressed */ 630 if (!(state->ks_flags & COMPOSE)) { 631 state->ks_flags |= COMPOSE; 632 state->ks_composed_char = 0; 633 } 634 break; 635 case 0xE0: 636 case 0xE1: 637 state->ks_prefix = scancode; 638 goto next_code; 639 } 640 break; 641 case 0xE0: /* 0xE0 prefix */ 642 state->ks_prefix = 0; 643 switch (keycode) { 644 case 0x1C: /* right enter key */ 645 keycode = 0x59; 646 break; 647 case 0x1D: /* right ctrl key */ 648 keycode = 0x5A; 649 break; 650 case 0x35: /* keypad divide key */ 651 keycode = 0x5B; 652 break; 653 case 0x37: /* print scrn key */ 654 keycode = 0x5C; 655 break; 656 case 0x38: /* right alt key (alt gr) */ 657 keycode = 0x5D; 658 break; 659 case 0x46: /* ctrl-pause/break on AT 101 (see below) */ 660 keycode = 0x68; 661 break; 662 case 0x47: /* grey home key */ 663 keycode = 0x5E; 664 break; 665 case 0x48: /* grey up arrow key */ 666 keycode = 0x5F; 667 break; 668 case 0x49: /* grey page up key */ 669 keycode = 0x60; 670 break; 671 case 0x4B: /* grey left arrow key */ 672 keycode = 0x61; 673 break; 674 case 0x4D: /* grey right arrow key */ 675 keycode = 0x62; 676 break; 677 case 0x4F: /* grey end key */ 678 keycode = 0x63; 679 break; 680 case 0x50: /* grey down arrow key */ 681 keycode = 0x64; 682 break; 683 case 0x51: /* grey page down key */ 684 keycode = 0x65; 685 break; 686 case 0x52: /* grey insert key */ 687 keycode = 0x66; 688 break; 689 case 0x53: /* grey delete key */ 690 keycode = 0x67; 691 break; 692 /* the following 3 are only used on the MS "Natural" keyboard */ 693 case 0x5b: /* left Window key */ 694 keycode = 0x69; 695 break; 696 case 0x5c: /* right Window key */ 697 keycode = 0x6a; 698 break; 699 case 0x5d: /* menu key */ 700 keycode = 0x6b; 701 break; 702 case 0x5e: /* power key */ 703 keycode = 0x6d; 704 break; 705 case 0x5f: /* sleep key */ 706 keycode = 0x6e; 707 break; 708 case 0x63: /* wake key */ 709 keycode = 0x6f; 710 break; 711 default: /* ignore everything else */ 712 goto next_code; 713 } 714 break; 715 case 0xE1: /* 0xE1 prefix */ 716 /* 717 * The pause/break key on the 101 keyboard produces: 718 * E1-1D-45 E1-9D-C5 719 * Ctrl-pause/break produces: 720 * E0-46 E0-C6 (See above.) 721 */ 722 state->ks_prefix = 0; 723 if (keycode == 0x1D) 724 state->ks_prefix = 0x1D; 725 goto next_code; 726 /* NOT REACHED */ 727 case 0x1D: /* pause / break */ 728 state->ks_prefix = 0; 729 if (keycode != 0x45) 730 goto next_code; 731 keycode = 0x68; 732 break; 733 } 734 735 if (kbd->kb_type == KB_84) { 736 switch (keycode) { 737 case 0x37: /* *(numpad)/print screen */ 738 if (state->ks_flags & SHIFTS) 739 keycode = 0x5c; /* print screen */ 740 break; 741 case 0x45: /* num lock/pause */ 742 if (state->ks_flags & CTLS) 743 keycode = 0x68; /* pause */ 744 break; 745 case 0x46: /* scroll lock/break */ 746 if (state->ks_flags & CTLS) 747 keycode = 0x6c; /* break */ 748 break; 749 } 750 } else if (kbd->kb_type == KB_101) { 751 switch (keycode) { 752 case 0x5c: /* print screen */ 753 if (state->ks_flags & ALTS) 754 keycode = 0x54; /* sysrq */ 755 break; 756 case 0x68: /* pause/break */ 757 if (state->ks_flags & CTLS) 758 keycode = 0x6c; /* break */ 759 break; 760 } 761 } 762 763 /* return the key code in the K_CODE mode */ 764 if (state->ks_mode == K_CODE) 765 return (keycode | (scancode & 0x80)); 766 767 /* compose a character code */ 768 if (state->ks_flags & COMPOSE) { 769 switch (keycode | (scancode & 0x80)) { 770 /* key pressed, process it */ 771 case 0x47: case 0x48: case 0x49: /* keypad 7,8,9 */ 772 state->ks_composed_char *= 10; 773 state->ks_composed_char += keycode - 0x40; 774 if (state->ks_composed_char > UCHAR_MAX) 775 return ERRKEY; 776 goto next_code; 777 case 0x4B: case 0x4C: case 0x4D: /* keypad 4,5,6 */ 778 state->ks_composed_char *= 10; 779 state->ks_composed_char += keycode - 0x47; 780 if (state->ks_composed_char > UCHAR_MAX) 781 return ERRKEY; 782 goto next_code; 783 case 0x4F: case 0x50: case 0x51: /* keypad 1,2,3 */ 784 state->ks_composed_char *= 10; 785 state->ks_composed_char += keycode - 0x4E; 786 if (state->ks_composed_char > UCHAR_MAX) 787 return ERRKEY; 788 goto next_code; 789 case 0x52: /* keypad 0 */ 790 state->ks_composed_char *= 10; 791 if (state->ks_composed_char > UCHAR_MAX) 792 return ERRKEY; 793 goto next_code; 794 795 /* key released, no interest here */ 796 case 0xC7: case 0xC8: case 0xC9: /* keypad 7,8,9 */ 797 case 0xCB: case 0xCC: case 0xCD: /* keypad 4,5,6 */ 798 case 0xCF: case 0xD0: case 0xD1: /* keypad 1,2,3 */ 799 case 0xD2: /* keypad 0 */ 800 goto next_code; 801 802 case 0x38: /* left alt key */ 803 break; 804 805 default: 806 if (state->ks_composed_char > 0) { 807 state->ks_flags &= ~COMPOSE; 808 state->ks_composed_char = 0; 809 return ERRKEY; 810 } 811 break; 812 } 813 } 814 815 /* keycode to key action */ 816 action = genkbd_keyaction(kbd, keycode, scancode & 0x80, 817 &state->ks_state, &state->ks_accents); 818 if (action == NOKEY) 819 goto next_code; 820 else 821 return action; 822 } 823 824 /* check if char is waiting */ 825 static int 826 atkbd_check_char(keyboard_t *kbd) 827 { 828 atkbd_state_t *state; 829 830 if (!KBD_IS_ACTIVE(kbd)) 831 return FALSE; 832 state = (atkbd_state_t *)kbd->kb_data; 833 if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0)) 834 return TRUE; 835 return kbdc_data_ready(state->kbdc); 836 } 837 838 /* some useful control functions */ 839 static int 840 atkbd_ioctl(keyboard_t *kbd, u_long cmd, caddr_t arg) 841 { 842 /* trasnlate LED_XXX bits into the device specific bits */ 843 static u_char ledmap[8] = { 844 0, 4, 2, 6, 1, 5, 3, 7, 845 }; 846 atkbd_state_t *state = kbd->kb_data; 847 int error; 848 int s; 849 int i; 850 851 s = spltty(); 852 switch (cmd) { 853 854 case KDGKBMODE: /* get keyboard mode */ 855 *(int *)arg = state->ks_mode; 856 break; 857 case KDSKBMODE: /* set keyboard mode */ 858 switch (*(int *)arg) { 859 case K_XLATE: 860 if (state->ks_mode != K_XLATE) { 861 /* make lock key state and LED state match */ 862 state->ks_state &= ~LOCK_MASK; 863 state->ks_state |= KBD_LED_VAL(kbd); 864 } 865 /* FALLTHROUGH */ 866 case K_RAW: 867 case K_CODE: 868 if (state->ks_mode != *(int *)arg) { 869 atkbd_clear_state(kbd); 870 state->ks_mode = *(int *)arg; 871 } 872 break; 873 default: 874 splx(s); 875 return EINVAL; 876 } 877 break; 878 879 case KDGETLED: /* get keyboard LED */ 880 *(int *)arg = KBD_LED_VAL(kbd); 881 break; 882 case KDSETLED: /* set keyboard LED */ 883 /* NOTE: lock key state in ks_state won't be changed */ 884 if (*(int *)arg & ~LOCK_MASK) { 885 splx(s); 886 return EINVAL; 887 } 888 i = *(int *)arg; 889 /* replace CAPS LED with ALTGR LED for ALTGR keyboards */ 890 if (state->ks_mode == K_XLATE && 891 kbd->kb_keymap->n_keys > ALTGR_OFFSET) { 892 if (i & ALKED) 893 i |= CLKED; 894 else 895 i &= ~CLKED; 896 } 897 if (KBD_HAS_DEVICE(kbd)) { 898 error = write_kbd(state->kbdc, KBDC_SET_LEDS, 899 ledmap[i & LED_MASK]); 900 if (error) { 901 splx(s); 902 return error; 903 } 904 } 905 KBD_LED_VAL(kbd) = *(int *)arg; 906 break; 907 908 case KDGKBSTATE: /* get lock key state */ 909 *(int *)arg = state->ks_state & LOCK_MASK; 910 break; 911 case KDSKBSTATE: /* set lock key state */ 912 if (*(int *)arg & ~LOCK_MASK) { 913 splx(s); 914 return EINVAL; 915 } 916 state->ks_state &= ~LOCK_MASK; 917 state->ks_state |= *(int *)arg; 918 splx(s); 919 /* set LEDs and quit */ 920 return atkbd_ioctl(kbd, KDSETLED, arg); 921 922 case KDSETREPEAT: /* set keyboard repeat rate (new interface) */ 923 splx(s); 924 if (!KBD_HAS_DEVICE(kbd)) 925 return 0; 926 i = typematic(((int *)arg)[0], ((int *)arg)[1]); 927 error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, i); 928 if (error == 0) { 929 kbd->kb_delay1 = typematic_delay(i); 930 kbd->kb_delay2 = typematic_rate(i); 931 } 932 return error; 933 934 case KDSETRAD: /* set keyboard repeat rate (old interface) */ 935 splx(s); 936 if (!KBD_HAS_DEVICE(kbd)) 937 return 0; 938 error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, *(int *)arg); 939 if (error == 0) { 940 kbd->kb_delay1 = typematic_delay(*(int *)arg); 941 kbd->kb_delay2 = typematic_rate(*(int *)arg); 942 } 943 return error; 944 945 case PIO_KEYMAP: /* set keyboard translation table */ 946 case PIO_KEYMAPENT: /* set keyboard translation table entry */ 947 case PIO_DEADKEYMAP: /* set accent key translation table */ 948 state->ks_accents = 0; 949 /* FALLTHROUGH */ 950 default: 951 splx(s); 952 return genkbd_commonioctl(kbd, cmd, arg); 953 } 954 955 splx(s); 956 return 0; 957 } 958 959 /* lock the access to the keyboard */ 960 static int 961 atkbd_lock(keyboard_t *kbd, int lock) 962 { 963 return kbdc_lock(((atkbd_state_t *)kbd->kb_data)->kbdc, lock); 964 } 965 966 /* clear the internal state of the keyboard */ 967 static void 968 atkbd_clear_state(keyboard_t *kbd) 969 { 970 atkbd_state_t *state; 971 972 state = (atkbd_state_t *)kbd->kb_data; 973 state->ks_flags = 0; 974 state->ks_polling = 0; 975 state->ks_state &= LOCK_MASK; /* preserve locking key state */ 976 state->ks_accents = 0; 977 state->ks_composed_char = 0; 978 #if 0 979 state->ks_prefix = 0; /* XXX */ 980 #endif 981 } 982 983 /* save the internal state */ 984 static int 985 atkbd_get_state(keyboard_t *kbd, void *buf, size_t len) 986 { 987 if (len == 0) 988 return sizeof(atkbd_state_t); 989 if (len < sizeof(atkbd_state_t)) 990 return -1; 991 bcopy(kbd->kb_data, buf, sizeof(atkbd_state_t)); 992 return 0; 993 } 994 995 /* set the internal state */ 996 static int 997 atkbd_set_state(keyboard_t *kbd, void *buf, size_t len) 998 { 999 if (len < sizeof(atkbd_state_t)) 1000 return ENOMEM; 1001 if (((atkbd_state_t *)kbd->kb_data)->kbdc 1002 != ((atkbd_state_t *)buf)->kbdc) 1003 return ENOMEM; 1004 bcopy(buf, kbd->kb_data, sizeof(atkbd_state_t)); 1005 return 0; 1006 } 1007 1008 static int 1009 atkbd_poll(keyboard_t *kbd, int on) 1010 { 1011 atkbd_state_t *state; 1012 int s; 1013 1014 state = (atkbd_state_t *)kbd->kb_data; 1015 s = spltty(); 1016 if (on) 1017 ++state->ks_polling; 1018 else 1019 --state->ks_polling; 1020 splx(s); 1021 return 0; 1022 } 1023 1024 /* local functions */ 1025 1026 static int 1027 get_typematic(keyboard_t *kbd) 1028 { 1029 #ifdef __i386__ 1030 /* 1031 * Only some systems allow us to retrieve the keyboard repeat 1032 * rate previously set via the BIOS... 1033 */ 1034 struct vm86frame vmf; 1035 u_int32_t p; 1036 1037 bzero(&vmf, sizeof(vmf)); 1038 vmf.vmf_ax = 0xc000; 1039 vm86_intcall(0x15, &vmf); 1040 if ((vmf.vmf_eflags & PSL_C) || vmf.vmf_ah) 1041 return ENODEV; 1042 p = BIOS_PADDRTOVADDR(((u_int32_t)vmf.vmf_es << 4) + vmf.vmf_bx); 1043 if ((readb(p + 6) & 0x40) == 0) /* int 16, function 0x09 supported? */ 1044 return ENODEV; 1045 vmf.vmf_ax = 0x0900; 1046 vm86_intcall(0x16, &vmf); 1047 if ((vmf.vmf_al & 0x08) == 0) /* int 16, function 0x0306 supported? */ 1048 return ENODEV; 1049 vmf.vmf_ax = 0x0306; 1050 vm86_intcall(0x16, &vmf); 1051 kbd->kb_delay1 = typematic_delay(vmf.vmf_bh << 5); 1052 kbd->kb_delay2 = typematic_rate(vmf.vmf_bl); 1053 return 0; 1054 #else 1055 return ENODEV; 1056 #endif /* __i386__ */ 1057 } 1058 1059 static int 1060 setup_kbd_port(KBDC kbdc, int port, int intr) 1061 { 1062 if (!set_controller_command_byte(kbdc, 1063 KBD_KBD_CONTROL_BITS, 1064 ((port) ? KBD_ENABLE_KBD_PORT : KBD_DISABLE_KBD_PORT) 1065 | ((intr) ? KBD_ENABLE_KBD_INT : KBD_DISABLE_KBD_INT))) 1066 return 1; 1067 return 0; 1068 } 1069 1070 static int 1071 get_kbd_echo(KBDC kbdc) 1072 { 1073 /* enable the keyboard port, but disable the keyboard intr. */ 1074 if (setup_kbd_port(kbdc, TRUE, FALSE)) 1075 /* CONTROLLER ERROR: there is very little we can do... */ 1076 return ENXIO; 1077 1078 /* see if something is present */ 1079 write_kbd_command(kbdc, KBDC_ECHO); 1080 if (read_kbd_data(kbdc) != KBD_ECHO) { 1081 empty_both_buffers(kbdc, 10); 1082 test_controller(kbdc); 1083 test_kbd_port(kbdc); 1084 return ENXIO; 1085 } 1086 1087 /* enable the keyboard port and intr. */ 1088 if (setup_kbd_port(kbdc, TRUE, TRUE)) { 1089 /* 1090 * CONTROLLER ERROR 1091 * This is serious; the keyboard intr is left disabled! 1092 */ 1093 return ENXIO; 1094 } 1095 1096 return 0; 1097 } 1098 1099 static int 1100 probe_keyboard(KBDC kbdc, int flags) 1101 { 1102 /* 1103 * Don't try to print anything in this function. The low-level 1104 * console may not have been initialized yet... 1105 */ 1106 int err; 1107 int c; 1108 int m; 1109 1110 if (!kbdc_lock(kbdc, TRUE)) { 1111 /* driver error? */ 1112 return ENXIO; 1113 } 1114 1115 /* temporarily block data transmission from the keyboard */ 1116 write_controller_command(kbdc, KBDC_DISABLE_KBD_PORT); 1117 1118 /* flush any noise in the buffer */ 1119 empty_both_buffers(kbdc, 100); 1120 1121 /* save the current keyboard controller command byte */ 1122 m = kbdc_get_device_mask(kbdc) & ~KBD_KBD_CONTROL_BITS; 1123 c = get_controller_command_byte(kbdc); 1124 if (c == -1) { 1125 /* CONTROLLER ERROR */ 1126 kbdc_set_device_mask(kbdc, m); 1127 kbdc_lock(kbdc, FALSE); 1128 return ENXIO; 1129 } 1130 1131 /* 1132 * The keyboard may have been screwed up by the boot block. 1133 * We may just be able to recover from error by testing the controller 1134 * and the keyboard port. The controller command byte needs to be 1135 * saved before this recovery operation, as some controllers seem 1136 * to set the command byte to particular values. 1137 */ 1138 test_controller(kbdc); 1139 if (!(flags & KB_CONF_NO_PROBE_TEST)) 1140 test_kbd_port(kbdc); 1141 1142 err = get_kbd_echo(kbdc); 1143 1144 /* 1145 * Even if the keyboard doesn't seem to be present (err != 0), 1146 * we shall enable the keyboard port and interrupt so that 1147 * the driver will be operable when the keyboard is attached 1148 * to the system later. It is NOT recommended to hot-plug 1149 * the AT keyboard, but many people do so... 1150 */ 1151 kbdc_set_device_mask(kbdc, m | KBD_KBD_CONTROL_BITS); 1152 setup_kbd_port(kbdc, TRUE, TRUE); 1153 #if 0 1154 if (err == 0) { 1155 kbdc_set_device_mask(kbdc, m | KBD_KBD_CONTROL_BITS); 1156 } else { 1157 /* try to restore the command byte as before */ 1158 set_controller_command_byte(kbdc, 0xff, c); 1159 kbdc_set_device_mask(kbdc, m); 1160 } 1161 #endif 1162 1163 kbdc_lock(kbdc, FALSE); 1164 return err; 1165 } 1166 1167 static int 1168 init_keyboard(KBDC kbdc, int *type, int flags) 1169 { 1170 int codeset; 1171 int id; 1172 int c; 1173 1174 if (!kbdc_lock(kbdc, TRUE)) { 1175 /* driver error? */ 1176 return EIO; 1177 } 1178 1179 /* temporarily block data transmission from the keyboard */ 1180 write_controller_command(kbdc, KBDC_DISABLE_KBD_PORT); 1181 1182 /* save the current controller command byte */ 1183 empty_both_buffers(kbdc, 200); 1184 c = get_controller_command_byte(kbdc); 1185 if (c == -1) { 1186 /* CONTROLLER ERROR */ 1187 kbdc_lock(kbdc, FALSE); 1188 printf("atkbd: unable to get the current command byte value.\n"); 1189 return EIO; 1190 } 1191 if (bootverbose) 1192 printf("atkbd: the current kbd controller command byte %04x\n", 1193 c); 1194 #if 0 1195 /* override the keyboard lock switch */ 1196 c |= KBD_OVERRIDE_KBD_LOCK; 1197 #endif 1198 1199 /* enable the keyboard port, but disable the keyboard intr. */ 1200 if (setup_kbd_port(kbdc, TRUE, FALSE)) { 1201 /* CONTROLLER ERROR: there is very little we can do... */ 1202 printf("atkbd: unable to set the command byte.\n"); 1203 kbdc_lock(kbdc, FALSE); 1204 return EIO; 1205 } 1206 1207 /* 1208 * Check if we have an XT keyboard before we attempt to reset it. 1209 * The procedure assumes that the keyboard and the controller have 1210 * been set up properly by BIOS and have not been messed up 1211 * during the boot process. 1212 */ 1213 codeset = -1; 1214 if (flags & KB_CONF_ALT_SCANCODESET) 1215 /* the user says there is a XT keyboard */ 1216 codeset = 1; 1217 #ifdef KBD_DETECT_XT_KEYBOARD 1218 else if ((c & KBD_TRANSLATION) == 0) { 1219 /* SET_SCANCODE_SET is not always supported; ignore error */ 1220 if (send_kbd_command_and_data(kbdc, KBDC_SET_SCANCODE_SET, 0) 1221 == KBD_ACK) 1222 codeset = read_kbd_data(kbdc); 1223 } 1224 if (bootverbose) 1225 printf("atkbd: scancode set %d\n", codeset); 1226 #endif /* KBD_DETECT_XT_KEYBOARD */ 1227 1228 *type = KB_OTHER; 1229 id = get_kbd_id(kbdc); 1230 switch(id) { 1231 case 0x41ab: /* 101/102/... Enhanced */ 1232 case 0x83ab: /* ditto */ 1233 case 0x54ab: /* SpaceSaver */ 1234 case 0x84ab: /* ditto */ 1235 #if 0 1236 case 0x90ab: /* 'G' */ 1237 case 0x91ab: /* 'P' */ 1238 case 0x92ab: /* 'A' */ 1239 #endif 1240 *type = KB_101; 1241 break; 1242 case -1: /* AT 84 keyboard doesn't return ID */ 1243 *type = KB_84; 1244 break; 1245 default: 1246 break; 1247 } 1248 if (bootverbose) 1249 printf("atkbd: keyboard ID 0x%x (%d)\n", id, *type); 1250 1251 /* reset keyboard hardware */ 1252 if (!(flags & KB_CONF_NO_RESET) && !reset_kbd(kbdc)) { 1253 /* 1254 * KEYBOARD ERROR 1255 * Keyboard reset may fail either because the keyboard 1256 * doen't exist, or because the keyboard doesn't pass 1257 * the self-test, or the keyboard controller on the 1258 * motherboard and the keyboard somehow fail to shake hands. 1259 * It is just possible, particularly in the last case, 1260 * that the keyboard controller may be left in a hung state. 1261 * test_controller() and test_kbd_port() appear to bring 1262 * the keyboard controller back (I don't know why and how, 1263 * though.) 1264 */ 1265 empty_both_buffers(kbdc, 10); 1266 test_controller(kbdc); 1267 test_kbd_port(kbdc); 1268 /* 1269 * We could disable the keyboard port and interrupt... but, 1270 * the keyboard may still exist (see above). 1271 */ 1272 set_controller_command_byte(kbdc, 0xff, c); 1273 kbdc_lock(kbdc, FALSE); 1274 if (bootverbose) 1275 printf("atkbd: failed to reset the keyboard.\n"); 1276 return EIO; 1277 } 1278 1279 /* 1280 * Allow us to set the XT_KEYBD flag so that keyboards 1281 * such as those on the IBM ThinkPad laptop computers can be used 1282 * with the standard console driver. 1283 */ 1284 if (codeset == 1) { 1285 if (send_kbd_command_and_data(kbdc, 1286 KBDC_SET_SCANCODE_SET, codeset) == KBD_ACK) { 1287 /* XT kbd doesn't need scan code translation */ 1288 c &= ~KBD_TRANSLATION; 1289 } else { 1290 /* 1291 * KEYBOARD ERROR 1292 * The XT kbd isn't usable unless the proper scan 1293 * code set is selected. 1294 */ 1295 set_controller_command_byte(kbdc, 0xff, c); 1296 kbdc_lock(kbdc, FALSE); 1297 printf("atkbd: unable to set the XT keyboard mode.\n"); 1298 return EIO; 1299 } 1300 } 1301 1302 #ifdef __alpha__ 1303 if (send_kbd_command_and_data( 1304 kbdc, KBDC_SET_SCANCODE_SET, 2) != KBD_ACK) { 1305 printf("atkbd: can't set translation.\n"); 1306 1307 } 1308 c |= KBD_TRANSLATION; 1309 #endif 1310 1311 /* enable the keyboard port and intr. */ 1312 if (!set_controller_command_byte(kbdc, 1313 KBD_KBD_CONTROL_BITS | KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK, 1314 (c & (KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK)) 1315 | KBD_ENABLE_KBD_PORT | KBD_ENABLE_KBD_INT)) { 1316 /* 1317 * CONTROLLER ERROR 1318 * This is serious; we are left with the disabled 1319 * keyboard intr. 1320 */ 1321 set_controller_command_byte(kbdc, 0xff, c); 1322 kbdc_lock(kbdc, FALSE); 1323 printf("atkbd: unable to enable the keyboard port and intr.\n"); 1324 return EIO; 1325 } 1326 1327 kbdc_lock(kbdc, FALSE); 1328 return 0; 1329 } 1330 1331 static int 1332 write_kbd(KBDC kbdc, int command, int data) 1333 { 1334 int s; 1335 1336 /* prevent the timeout routine from polling the keyboard */ 1337 if (!kbdc_lock(kbdc, TRUE)) 1338 return EBUSY; 1339 1340 /* disable the keyboard and mouse interrupt */ 1341 s = spltty(); 1342 #if 0 1343 c = get_controller_command_byte(kbdc); 1344 if ((c == -1) 1345 || !set_controller_command_byte(kbdc, 1346 kbdc_get_device_mask(kbdc), 1347 KBD_DISABLE_KBD_PORT | KBD_DISABLE_KBD_INT 1348 | KBD_DISABLE_AUX_PORT | KBD_DISABLE_AUX_INT)) { 1349 /* CONTROLLER ERROR */ 1350 kbdc_lock(kbdc, FALSE); 1351 splx(s); 1352 return EIO; 1353 } 1354 /* 1355 * Now that the keyboard controller is told not to generate 1356 * the keyboard and mouse interrupts, call `splx()' to allow 1357 * the other tty interrupts. The clock interrupt may also occur, 1358 * but the timeout routine (`scrn_timer()') will be blocked 1359 * by the lock flag set via `kbdc_lock()' 1360 */ 1361 splx(s); 1362 #endif 1363 1364 if (send_kbd_command_and_data(kbdc, command, data) != KBD_ACK) 1365 send_kbd_command(kbdc, KBDC_ENABLE_KBD); 1366 1367 #if 0 1368 /* restore the interrupts */ 1369 if (!set_controller_command_byte(kbdc, 1370 kbdc_get_device_mask(kbdc), 1371 c & (KBD_KBD_CONTROL_BITS | KBD_AUX_CONTROL_BITS))) { 1372 /* CONTROLLER ERROR */ 1373 } 1374 #else 1375 splx(s); 1376 #endif 1377 kbdc_lock(kbdc, FALSE); 1378 1379 return 0; 1380 } 1381 1382 static int 1383 get_kbd_id(KBDC kbdc) 1384 { 1385 int id1, id2; 1386 1387 empty_both_buffers(kbdc, 10); 1388 id1 = id2 = -1; 1389 if (send_kbd_command(kbdc, KBDC_SEND_DEV_ID) != KBD_ACK) 1390 return -1; 1391 1392 DELAY(10000); /* 10 msec delay */ 1393 id1 = read_kbd_data(kbdc); 1394 if (id1 != -1) 1395 id2 = read_kbd_data(kbdc); 1396 1397 if ((id1 == -1) || (id2 == -1)) { 1398 empty_both_buffers(kbdc, 10); 1399 test_controller(kbdc); 1400 test_kbd_port(kbdc); 1401 return -1; 1402 } 1403 return ((id2 << 8) | id1); 1404 } 1405 1406 static int delays[] = { 250, 500, 750, 1000 }; 1407 static int rates[] = { 34, 38, 42, 46, 50, 55, 59, 63, 1408 68, 76, 84, 92, 100, 110, 118, 126, 1409 136, 152, 168, 184, 200, 220, 236, 252, 1410 272, 304, 336, 368, 400, 440, 472, 504 }; 1411 1412 static int 1413 typematic_delay(int i) 1414 { 1415 return delays[(i >> 5) & 3]; 1416 } 1417 1418 static int 1419 typematic_rate(int i) 1420 { 1421 return rates[i & 0x1f]; 1422 } 1423 1424 static int 1425 typematic(int delay, int rate) 1426 { 1427 int value; 1428 int i; 1429 1430 for (i = sizeof(delays)/sizeof(delays[0]) - 1; i > 0; --i) { 1431 if (delay >= delays[i]) 1432 break; 1433 } 1434 value = i << 5; 1435 for (i = sizeof(rates)/sizeof(rates[0]) - 1; i > 0; --i) { 1436 if (rate >= rates[i]) 1437 break; 1438 } 1439 value |= i; 1440 return value; 1441 } 1442