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/eventhandler.h> 39 #include <sys/proc.h> 40 #include <sys/limits.h> 41 #include <sys/malloc.h> 42 43 #include <machine/bus.h> 44 #include <machine/resource.h> 45 46 #ifdef __i386__ 47 #include <machine/md_var.h> 48 #include <machine/psl.h> 49 #include <machine/vm86.h> 50 #include <machine/pc/bios.h> 51 52 #include <vm/vm.h> 53 #include <vm/pmap.h> 54 #include <vm/vm_param.h> 55 56 #include <isa/isareg.h> 57 #endif /* __i386__ */ 58 59 #include <sys/kbio.h> 60 #include <dev/kbd/kbdreg.h> 61 #include <dev/atkbdc/atkbdreg.h> 62 #include <dev/atkbdc/atkbdcreg.h> 63 64 static timeout_t atkbd_timeout; 65 static void atkbd_shutdown_final(void *v); 66 67 int 68 atkbd_probe_unit(int unit, int ctlr, int irq, int flags) 69 { 70 keyboard_switch_t *sw; 71 int args[2]; 72 int error; 73 74 sw = kbd_get_switch(ATKBD_DRIVER_NAME); 75 if (sw == NULL) 76 return ENXIO; 77 78 args[0] = ctlr; 79 args[1] = irq; 80 error = (*sw->probe)(unit, args, flags); 81 if (error) 82 return error; 83 return 0; 84 } 85 86 int 87 atkbd_attach_unit(int unit, keyboard_t **kbd, int ctlr, int irq, int flags) 88 { 89 keyboard_switch_t *sw; 90 int args[2]; 91 int error; 92 93 sw = kbd_get_switch(ATKBD_DRIVER_NAME); 94 if (sw == NULL) 95 return ENXIO; 96 97 /* reset, initialize and enable the device */ 98 args[0] = ctlr; 99 args[1] = irq; 100 *kbd = NULL; 101 error = (*sw->probe)(unit, args, flags); 102 if (error) 103 return error; 104 error = (*sw->init)(unit, kbd, args, flags); 105 if (error) 106 return error; 107 (*sw->enable)(*kbd); 108 109 #ifdef KBD_INSTALL_CDEV 110 /* attach a virtual keyboard cdev */ 111 error = kbd_attach(*kbd); 112 if (error) 113 return error; 114 #endif 115 116 /* 117 * This is a kludge to compensate for lost keyboard interrupts. 118 * A similar code used to be in syscons. See below. XXX 119 */ 120 atkbd_timeout(*kbd); 121 122 if (bootverbose) 123 (*sw->diag)(*kbd, bootverbose); 124 125 EVENTHANDLER_REGISTER(shutdown_final, atkbd_shutdown_final, *kbd, 126 SHUTDOWN_PRI_DEFAULT); 127 128 return 0; 129 } 130 131 static void 132 atkbd_timeout(void *arg) 133 { 134 keyboard_t *kbd; 135 int s; 136 137 /* 138 * The original text of the following comments are extracted 139 * from syscons.c (1.287) 140 * 141 * With release 2.1 of the Xaccel server, the keyboard is left 142 * hanging pretty often. Apparently an interrupt from the 143 * keyboard is lost, and I don't know why (yet). 144 * This ugly hack calls the low-level interrupt routine if input 145 * is ready for the keyboard and conveniently hides the problem. XXX 146 * 147 * Try removing anything stuck in the keyboard controller; whether 148 * it's a keyboard scan code or mouse data. The low-level 149 * interrupt routine doesn't read the mouse data directly, 150 * but the keyboard controller driver will, as a side effect. 151 */ 152 /* 153 * And here is bde's original comment about this: 154 * 155 * This is necessary to handle edge triggered interrupts - if we 156 * returned when our IRQ is high due to unserviced input, then there 157 * would be no more keyboard IRQs until the keyboard is reset by 158 * external powers. 159 * 160 * The keyboard apparently unwedges the irq in most cases. 161 */ 162 s = spltty(); 163 kbd = (keyboard_t *)arg; 164 if ((*kbdsw[kbd->kb_index]->lock)(kbd, TRUE)) { 165 /* 166 * We have seen the lock flag is not set. Let's reset 167 * the flag early, otherwise the LED update routine fails 168 * which may want the lock during the interrupt routine. 169 */ 170 (*kbdsw[kbd->kb_index]->lock)(kbd, FALSE); 171 if ((*kbdsw[kbd->kb_index]->check_char)(kbd)) 172 (*kbdsw[kbd->kb_index]->intr)(kbd, NULL); 173 } 174 splx(s); 175 timeout(atkbd_timeout, arg, hz/10); 176 } 177 178 /* LOW-LEVEL */ 179 180 #define ATKBD_DEFAULT 0 181 182 typedef struct atkbd_state { 183 KBDC kbdc; /* keyboard controller */ 184 /* XXX: don't move this field; pcvt 185 * expects `kbdc' to be the first 186 * field in this structure. */ 187 int ks_mode; /* input mode (K_XLATE,K_RAW,K_CODE) */ 188 int ks_flags; /* flags */ 189 #define COMPOSE (1 << 0) 190 int ks_polling; 191 int ks_state; /* shift/lock key state */ 192 int ks_accents; /* accent key index (> 0) */ 193 u_int ks_composed_char; /* composed char code (> 0) */ 194 u_char ks_prefix; /* AT scan code prefix */ 195 } atkbd_state_t; 196 197 /* keyboard driver declaration */ 198 static int atkbd_configure(int flags); 199 static kbd_probe_t atkbd_probe; 200 static kbd_init_t atkbd_init; 201 static kbd_term_t atkbd_term; 202 static kbd_intr_t atkbd_intr; 203 static kbd_test_if_t atkbd_test_if; 204 static kbd_enable_t atkbd_enable; 205 static kbd_disable_t atkbd_disable; 206 static kbd_read_t atkbd_read; 207 static kbd_check_t atkbd_check; 208 static kbd_read_char_t atkbd_read_char; 209 static kbd_check_char_t atkbd_check_char; 210 static kbd_ioctl_t atkbd_ioctl; 211 static kbd_lock_t atkbd_lock; 212 static kbd_clear_state_t atkbd_clear_state; 213 static kbd_get_state_t atkbd_get_state; 214 static kbd_set_state_t atkbd_set_state; 215 static kbd_poll_mode_t atkbd_poll; 216 217 static keyboard_switch_t atkbdsw = { 218 atkbd_probe, 219 atkbd_init, 220 atkbd_term, 221 atkbd_intr, 222 atkbd_test_if, 223 atkbd_enable, 224 atkbd_disable, 225 atkbd_read, 226 atkbd_check, 227 atkbd_read_char, 228 atkbd_check_char, 229 atkbd_ioctl, 230 atkbd_lock, 231 atkbd_clear_state, 232 atkbd_get_state, 233 atkbd_set_state, 234 genkbd_get_fkeystr, 235 atkbd_poll, 236 genkbd_diag, 237 }; 238 239 KEYBOARD_DRIVER(atkbd, atkbdsw, atkbd_configure); 240 241 /* local functions */ 242 static int get_typematic(keyboard_t *kbd); 243 static int setup_kbd_port(KBDC kbdc, int port, int intr); 244 static int get_kbd_echo(KBDC kbdc); 245 static int probe_keyboard(KBDC kbdc, int flags); 246 static int init_keyboard(KBDC kbdc, int *type, int flags); 247 static int write_kbd(KBDC kbdc, int command, int data); 248 static int get_kbd_id(KBDC kbdc); 249 static int typematic(int delay, int rate); 250 static int typematic_delay(int delay); 251 static int typematic_rate(int rate); 252 253 /* local variables */ 254 255 /* the initial key map, accent map and fkey strings */ 256 #ifdef ATKBD_DFLT_KEYMAP 257 #define KBD_DFLT_KEYMAP 258 #include "atkbdmap.h" 259 #endif 260 #include <dev/kbd/kbdtables.h> 261 262 /* structures for the default keyboard */ 263 static keyboard_t default_kbd; 264 static atkbd_state_t default_kbd_state; 265 static keymap_t default_keymap; 266 static accentmap_t default_accentmap; 267 static fkeytab_t default_fkeytab[NUM_FKEYS]; 268 269 /* 270 * The back door to the keyboard driver! 271 * This function is called by the console driver, via the kbdio module, 272 * to tickle keyboard drivers when the low-level console is being initialized. 273 * Almost nothing in the kernel has been initialied yet. Try to probe 274 * keyboards if possible. 275 * NOTE: because of the way the low-level console is initialized, this routine 276 * may be called more than once!! 277 */ 278 static int 279 atkbd_configure(int flags) 280 { 281 keyboard_t *kbd; 282 int arg[2]; 283 int i; 284 285 /* 286 * Probe the keyboard controller, if not present or if the driver 287 * is disabled, unregister the keyboard if any. 288 */ 289 if (atkbdc_configure() != 0 || 290 resource_disabled("atkbd", ATKBD_DEFAULT)) { 291 i = kbd_find_keyboard(ATKBD_DRIVER_NAME, ATKBD_DEFAULT); 292 if (i >= 0) { 293 kbd = kbd_get_keyboard(i); 294 kbd_unregister(kbd); 295 kbd->kb_flags &= ~KB_REGISTERED; 296 } 297 return 0; 298 } 299 300 /* XXX: a kludge to obtain the device configuration flags */ 301 if (resource_int_value("atkbd", ATKBD_DEFAULT, "flags", &i) == 0) 302 flags |= i; 303 304 /* probe the default keyboard */ 305 arg[0] = -1; 306 arg[1] = -1; 307 kbd = NULL; 308 if (atkbd_probe(ATKBD_DEFAULT, arg, flags)) 309 return 0; 310 if (atkbd_init(ATKBD_DEFAULT, &kbd, arg, flags)) 311 return 0; 312 313 /* return the number of found keyboards */ 314 return 1; 315 } 316 317 /* low-level functions */ 318 319 /* detect a keyboard */ 320 static int 321 atkbd_probe(int unit, void *arg, int flags) 322 { 323 KBDC kbdc; 324 int *data = (int *)arg; /* data[0]: controller, data[1]: irq */ 325 326 /* XXX */ 327 if (unit == ATKBD_DEFAULT) { 328 if (KBD_IS_PROBED(&default_kbd)) 329 return 0; 330 } 331 332 kbdc = atkbdc_open(data[0]); 333 if (kbdc == NULL) 334 return ENXIO; 335 if (probe_keyboard(kbdc, flags)) { 336 if (flags & KB_CONF_FAIL_IF_NO_KBD) 337 return ENXIO; 338 } 339 return 0; 340 } 341 342 /* reset and initialize the device */ 343 static int 344 atkbd_init(int unit, keyboard_t **kbdp, void *arg, int flags) 345 { 346 keyboard_t *kbd; 347 atkbd_state_t *state; 348 keymap_t *keymap; 349 accentmap_t *accmap; 350 fkeytab_t *fkeymap; 351 int fkeymap_size; 352 int delay[2]; 353 int *data = (int *)arg; /* data[0]: controller, data[1]: irq */ 354 int error, needfree; 355 356 /* XXX */ 357 if (unit == ATKBD_DEFAULT) { 358 *kbdp = kbd = &default_kbd; 359 if (KBD_IS_INITIALIZED(kbd) && KBD_IS_CONFIGURED(kbd)) 360 return 0; 361 state = &default_kbd_state; 362 keymap = &default_keymap; 363 accmap = &default_accentmap; 364 fkeymap = default_fkeytab; 365 fkeymap_size = 366 sizeof(default_fkeytab)/sizeof(default_fkeytab[0]); 367 needfree = 0; 368 } else if (*kbdp == NULL) { 369 *kbdp = kbd = malloc(sizeof(*kbd), M_DEVBUF, M_NOWAIT | M_ZERO); 370 state = malloc(sizeof(*state), M_DEVBUF, M_NOWAIT | M_ZERO); 371 /* NB: these will always be initialized 'cuz !KBD_IS_PROBED */ 372 keymap = malloc(sizeof(key_map), M_DEVBUF, M_NOWAIT); 373 accmap = malloc(sizeof(accent_map), M_DEVBUF, M_NOWAIT); 374 fkeymap = malloc(sizeof(fkey_tab), M_DEVBUF, M_NOWAIT); 375 fkeymap_size = sizeof(fkey_tab)/sizeof(fkey_tab[0]); 376 needfree = 1; 377 if ((kbd == NULL) || (state == NULL) || (keymap == NULL) 378 || (accmap == NULL) || (fkeymap == NULL)) { 379 error = ENOMEM; 380 goto bad; 381 } 382 } else if (KBD_IS_INITIALIZED(*kbdp) && KBD_IS_CONFIGURED(*kbdp)) { 383 return 0; 384 } else { 385 kbd = *kbdp; 386 state = (atkbd_state_t *)kbd->kb_data; 387 bzero(state, sizeof(*state)); 388 keymap = kbd->kb_keymap; 389 accmap = kbd->kb_accentmap; 390 fkeymap = kbd->kb_fkeytab; 391 fkeymap_size = kbd->kb_fkeytab_size; 392 needfree = 0; 393 } 394 395 if (!KBD_IS_PROBED(kbd)) { 396 state->kbdc = atkbdc_open(data[0]); 397 if (state->kbdc == NULL) { 398 error = ENXIO; 399 goto bad; 400 } 401 kbd_init_struct(kbd, ATKBD_DRIVER_NAME, KB_OTHER, unit, flags, 402 0, 0); 403 bcopy(&key_map, keymap, sizeof(key_map)); 404 bcopy(&accent_map, accmap, sizeof(accent_map)); 405 bcopy(fkey_tab, fkeymap, 406 imin(fkeymap_size*sizeof(fkeymap[0]), sizeof(fkey_tab))); 407 kbd_set_maps(kbd, keymap, accmap, fkeymap, fkeymap_size); 408 kbd->kb_data = (void *)state; 409 410 if (probe_keyboard(state->kbdc, flags)) { /* shouldn't happen */ 411 if (flags & KB_CONF_FAIL_IF_NO_KBD) { 412 error = ENXIO; 413 goto bad; 414 } 415 } else { 416 KBD_FOUND_DEVICE(kbd); 417 } 418 atkbd_clear_state(kbd); 419 state->ks_mode = K_XLATE; 420 /* 421 * FIXME: set the initial value for lock keys in ks_state 422 * according to the BIOS data? 423 */ 424 KBD_PROBE_DONE(kbd); 425 } 426 if (!KBD_IS_INITIALIZED(kbd) && !(flags & KB_CONF_PROBE_ONLY)) { 427 kbd->kb_config = flags & ~KB_CONF_PROBE_ONLY; 428 if (KBD_HAS_DEVICE(kbd) 429 && init_keyboard(state->kbdc, &kbd->kb_type, kbd->kb_config) 430 && (kbd->kb_config & KB_CONF_FAIL_IF_NO_KBD)) { 431 kbd_unregister(kbd); 432 error = ENXIO; 433 goto bad; 434 } 435 atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state); 436 get_typematic(kbd); 437 delay[0] = kbd->kb_delay1; 438 delay[1] = kbd->kb_delay2; 439 atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay); 440 KBD_INIT_DONE(kbd); 441 } 442 if (!KBD_IS_CONFIGURED(kbd)) { 443 if (kbd_register(kbd) < 0) { 444 error = ENXIO; 445 goto bad; 446 } 447 KBD_CONFIG_DONE(kbd); 448 } 449 450 return 0; 451 bad: 452 if (needfree) { 453 if (state != NULL) 454 free(state, M_DEVBUF); 455 if (keymap != NULL) 456 free(keymap, M_DEVBUF); 457 if (accmap != NULL) 458 free(accmap, M_DEVBUF); 459 if (fkeymap != NULL) 460 free(fkeymap, M_DEVBUF); 461 if (kbd != NULL) { 462 free(kbd, M_DEVBUF); 463 *kbdp = NULL; /* insure ref doesn't leak to caller */ 464 } 465 } 466 return error; 467 } 468 469 /* finish using this keyboard */ 470 static int 471 atkbd_term(keyboard_t *kbd) 472 { 473 kbd_unregister(kbd); 474 return 0; 475 } 476 477 /* keyboard interrupt routine */ 478 static int 479 atkbd_intr(keyboard_t *kbd, void *arg) 480 { 481 atkbd_state_t *state; 482 int delay[2]; 483 int c; 484 485 if (KBD_IS_ACTIVE(kbd) && KBD_IS_BUSY(kbd)) { 486 /* let the callback function to process the input */ 487 (*kbd->kb_callback.kc_func)(kbd, KBDIO_KEYINPUT, 488 kbd->kb_callback.kc_arg); 489 } else { 490 /* read and discard the input; no one is waiting for input */ 491 do { 492 c = atkbd_read_char(kbd, FALSE); 493 } while (c != NOKEY); 494 495 if (!KBD_HAS_DEVICE(kbd)) { 496 /* 497 * The keyboard was not detected before; 498 * it must have been reconnected! 499 */ 500 state = (atkbd_state_t *)kbd->kb_data; 501 init_keyboard(state->kbdc, &kbd->kb_type, 502 kbd->kb_config); 503 atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state); 504 get_typematic(kbd); 505 delay[0] = kbd->kb_delay1; 506 delay[1] = kbd->kb_delay2; 507 atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay); 508 KBD_FOUND_DEVICE(kbd); 509 } 510 } 511 return 0; 512 } 513 514 /* test the interface to the device */ 515 static int 516 atkbd_test_if(keyboard_t *kbd) 517 { 518 int error; 519 int s; 520 521 error = 0; 522 empty_both_buffers(((atkbd_state_t *)kbd->kb_data)->kbdc, 10); 523 s = spltty(); 524 if (!test_controller(((atkbd_state_t *)kbd->kb_data)->kbdc)) 525 error = EIO; 526 else if (test_kbd_port(((atkbd_state_t *)kbd->kb_data)->kbdc) != 0) 527 error = EIO; 528 splx(s); 529 530 return error; 531 } 532 533 /* 534 * Enable the access to the device; until this function is called, 535 * the client cannot read from the keyboard. 536 */ 537 static int 538 atkbd_enable(keyboard_t *kbd) 539 { 540 int s; 541 542 s = spltty(); 543 KBD_ACTIVATE(kbd); 544 splx(s); 545 return 0; 546 } 547 548 /* disallow the access to the device */ 549 static int 550 atkbd_disable(keyboard_t *kbd) 551 { 552 int s; 553 554 s = spltty(); 555 KBD_DEACTIVATE(kbd); 556 splx(s); 557 return 0; 558 } 559 560 /* read one byte from the keyboard if it's allowed */ 561 static int 562 atkbd_read(keyboard_t *kbd, int wait) 563 { 564 int c; 565 566 if (wait) 567 c = read_kbd_data(((atkbd_state_t *)kbd->kb_data)->kbdc); 568 else 569 c = read_kbd_data_no_wait(((atkbd_state_t *)kbd->kb_data)->kbdc); 570 if (c != -1) 571 ++kbd->kb_count; 572 return (KBD_IS_ACTIVE(kbd) ? c : -1); 573 } 574 575 /* check if data is waiting */ 576 static int 577 atkbd_check(keyboard_t *kbd) 578 { 579 if (!KBD_IS_ACTIVE(kbd)) 580 return FALSE; 581 return kbdc_data_ready(((atkbd_state_t *)kbd->kb_data)->kbdc); 582 } 583 584 /* read char from the keyboard */ 585 static u_int 586 atkbd_read_char(keyboard_t *kbd, int wait) 587 { 588 atkbd_state_t *state; 589 u_int action; 590 int scancode; 591 int keycode; 592 593 state = (atkbd_state_t *)kbd->kb_data; 594 next_code: 595 /* do we have a composed char to return? */ 596 if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0)) { 597 action = state->ks_composed_char; 598 state->ks_composed_char = 0; 599 if (action > UCHAR_MAX) 600 return ERRKEY; 601 return action; 602 } 603 604 /* see if there is something in the keyboard port */ 605 if (wait) { 606 do { 607 scancode = read_kbd_data(state->kbdc); 608 } while (scancode == -1); 609 } else { 610 scancode = read_kbd_data_no_wait(state->kbdc); 611 if (scancode == -1) 612 return NOKEY; 613 } 614 ++kbd->kb_count; 615 616 #if KBDIO_DEBUG >= 10 617 printf("atkbd_read_char(): scancode:0x%x\n", scancode); 618 #endif 619 620 /* return the byte as is for the K_RAW mode */ 621 if (state->ks_mode == K_RAW) 622 return scancode; 623 624 /* translate the scan code into a keycode */ 625 keycode = scancode & 0x7F; 626 switch (state->ks_prefix) { 627 case 0x00: /* normal scancode */ 628 switch(scancode) { 629 case 0xB8: /* left alt (compose key) released */ 630 if (state->ks_flags & COMPOSE) { 631 state->ks_flags &= ~COMPOSE; 632 if (state->ks_composed_char > UCHAR_MAX) 633 state->ks_composed_char = 0; 634 } 635 break; 636 case 0x38: /* left alt (compose key) pressed */ 637 if (!(state->ks_flags & COMPOSE)) { 638 state->ks_flags |= COMPOSE; 639 state->ks_composed_char = 0; 640 } 641 break; 642 case 0xE0: 643 case 0xE1: 644 state->ks_prefix = scancode; 645 goto next_code; 646 } 647 break; 648 case 0xE0: /* 0xE0 prefix */ 649 state->ks_prefix = 0; 650 switch (keycode) { 651 case 0x1C: /* right enter key */ 652 keycode = 0x59; 653 break; 654 case 0x1D: /* right ctrl key */ 655 keycode = 0x5A; 656 break; 657 case 0x35: /* keypad divide key */ 658 keycode = 0x5B; 659 break; 660 case 0x37: /* print scrn key */ 661 keycode = 0x5C; 662 break; 663 case 0x38: /* right alt key (alt gr) */ 664 keycode = 0x5D; 665 break; 666 case 0x46: /* ctrl-pause/break on AT 101 (see below) */ 667 keycode = 0x68; 668 break; 669 case 0x47: /* grey home key */ 670 keycode = 0x5E; 671 break; 672 case 0x48: /* grey up arrow key */ 673 keycode = 0x5F; 674 break; 675 case 0x49: /* grey page up key */ 676 keycode = 0x60; 677 break; 678 case 0x4B: /* grey left arrow key */ 679 keycode = 0x61; 680 break; 681 case 0x4D: /* grey right arrow key */ 682 keycode = 0x62; 683 break; 684 case 0x4F: /* grey end key */ 685 keycode = 0x63; 686 break; 687 case 0x50: /* grey down arrow key */ 688 keycode = 0x64; 689 break; 690 case 0x51: /* grey page down key */ 691 keycode = 0x65; 692 break; 693 case 0x52: /* grey insert key */ 694 keycode = 0x66; 695 break; 696 case 0x53: /* grey delete key */ 697 keycode = 0x67; 698 break; 699 /* the following 3 are only used on the MS "Natural" keyboard */ 700 case 0x5b: /* left Window key */ 701 keycode = 0x69; 702 break; 703 case 0x5c: /* right Window key */ 704 keycode = 0x6a; 705 break; 706 case 0x5d: /* menu key */ 707 keycode = 0x6b; 708 break; 709 case 0x5e: /* power key */ 710 keycode = 0x6d; 711 break; 712 case 0x5f: /* sleep key */ 713 keycode = 0x6e; 714 break; 715 case 0x63: /* wake key */ 716 keycode = 0x6f; 717 break; 718 default: /* ignore everything else */ 719 goto next_code; 720 } 721 break; 722 case 0xE1: /* 0xE1 prefix */ 723 /* 724 * The pause/break key on the 101 keyboard produces: 725 * E1-1D-45 E1-9D-C5 726 * Ctrl-pause/break produces: 727 * E0-46 E0-C6 (See above.) 728 */ 729 state->ks_prefix = 0; 730 if (keycode == 0x1D) 731 state->ks_prefix = 0x1D; 732 goto next_code; 733 /* NOT REACHED */ 734 case 0x1D: /* pause / break */ 735 state->ks_prefix = 0; 736 if (keycode != 0x45) 737 goto next_code; 738 keycode = 0x68; 739 break; 740 } 741 742 if (kbd->kb_type == KB_84) { 743 switch (keycode) { 744 case 0x37: /* *(numpad)/print screen */ 745 if (state->ks_flags & SHIFTS) 746 keycode = 0x5c; /* print screen */ 747 break; 748 case 0x45: /* num lock/pause */ 749 if (state->ks_flags & CTLS) 750 keycode = 0x68; /* pause */ 751 break; 752 case 0x46: /* scroll lock/break */ 753 if (state->ks_flags & CTLS) 754 keycode = 0x6c; /* break */ 755 break; 756 } 757 } else if (kbd->kb_type == KB_101) { 758 switch (keycode) { 759 case 0x5c: /* print screen */ 760 if (state->ks_flags & ALTS) 761 keycode = 0x54; /* sysrq */ 762 break; 763 case 0x68: /* pause/break */ 764 if (state->ks_flags & CTLS) 765 keycode = 0x6c; /* break */ 766 break; 767 } 768 } 769 770 /* return the key code in the K_CODE mode */ 771 if (state->ks_mode == K_CODE) 772 return (keycode | (scancode & 0x80)); 773 774 /* compose a character code */ 775 if (state->ks_flags & COMPOSE) { 776 switch (keycode | (scancode & 0x80)) { 777 /* key pressed, process it */ 778 case 0x47: case 0x48: case 0x49: /* keypad 7,8,9 */ 779 state->ks_composed_char *= 10; 780 state->ks_composed_char += keycode - 0x40; 781 if (state->ks_composed_char > UCHAR_MAX) 782 return ERRKEY; 783 goto next_code; 784 case 0x4B: case 0x4C: case 0x4D: /* keypad 4,5,6 */ 785 state->ks_composed_char *= 10; 786 state->ks_composed_char += keycode - 0x47; 787 if (state->ks_composed_char > UCHAR_MAX) 788 return ERRKEY; 789 goto next_code; 790 case 0x4F: case 0x50: case 0x51: /* keypad 1,2,3 */ 791 state->ks_composed_char *= 10; 792 state->ks_composed_char += keycode - 0x4E; 793 if (state->ks_composed_char > UCHAR_MAX) 794 return ERRKEY; 795 goto next_code; 796 case 0x52: /* keypad 0 */ 797 state->ks_composed_char *= 10; 798 if (state->ks_composed_char > UCHAR_MAX) 799 return ERRKEY; 800 goto next_code; 801 802 /* key released, no interest here */ 803 case 0xC7: case 0xC8: case 0xC9: /* keypad 7,8,9 */ 804 case 0xCB: case 0xCC: case 0xCD: /* keypad 4,5,6 */ 805 case 0xCF: case 0xD0: case 0xD1: /* keypad 1,2,3 */ 806 case 0xD2: /* keypad 0 */ 807 goto next_code; 808 809 case 0x38: /* left alt key */ 810 break; 811 812 default: 813 if (state->ks_composed_char > 0) { 814 state->ks_flags &= ~COMPOSE; 815 state->ks_composed_char = 0; 816 return ERRKEY; 817 } 818 break; 819 } 820 } 821 822 /* keycode to key action */ 823 action = genkbd_keyaction(kbd, keycode, scancode & 0x80, 824 &state->ks_state, &state->ks_accents); 825 if (action == NOKEY) 826 goto next_code; 827 else 828 return action; 829 } 830 831 /* check if char is waiting */ 832 static int 833 atkbd_check_char(keyboard_t *kbd) 834 { 835 atkbd_state_t *state; 836 837 if (!KBD_IS_ACTIVE(kbd)) 838 return FALSE; 839 state = (atkbd_state_t *)kbd->kb_data; 840 if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0)) 841 return TRUE; 842 return kbdc_data_ready(state->kbdc); 843 } 844 845 /* some useful control functions */ 846 static int 847 atkbd_ioctl(keyboard_t *kbd, u_long cmd, caddr_t arg) 848 { 849 /* translate LED_XXX bits into the device specific bits */ 850 static u_char ledmap[8] = { 851 0, 4, 2, 6, 1, 5, 3, 7, 852 }; 853 atkbd_state_t *state = kbd->kb_data; 854 int error; 855 int s; 856 int i; 857 858 s = spltty(); 859 switch (cmd) { 860 861 case KDGKBMODE: /* get keyboard mode */ 862 *(int *)arg = state->ks_mode; 863 break; 864 case KDSKBMODE: /* set keyboard mode */ 865 switch (*(int *)arg) { 866 case K_XLATE: 867 if (state->ks_mode != K_XLATE) { 868 /* make lock key state and LED state match */ 869 state->ks_state &= ~LOCK_MASK; 870 state->ks_state |= KBD_LED_VAL(kbd); 871 } 872 /* FALLTHROUGH */ 873 case K_RAW: 874 case K_CODE: 875 if (state->ks_mode != *(int *)arg) { 876 atkbd_clear_state(kbd); 877 state->ks_mode = *(int *)arg; 878 } 879 break; 880 default: 881 splx(s); 882 return EINVAL; 883 } 884 break; 885 886 case KDGETLED: /* get keyboard LED */ 887 *(int *)arg = KBD_LED_VAL(kbd); 888 break; 889 case KDSETLED: /* set keyboard LED */ 890 /* NOTE: lock key state in ks_state won't be changed */ 891 if (*(int *)arg & ~LOCK_MASK) { 892 splx(s); 893 return EINVAL; 894 } 895 i = *(int *)arg; 896 /* replace CAPS LED with ALTGR LED for ALTGR keyboards */ 897 if (state->ks_mode == K_XLATE && 898 kbd->kb_keymap->n_keys > ALTGR_OFFSET) { 899 if (i & ALKED) 900 i |= CLKED; 901 else 902 i &= ~CLKED; 903 } 904 if (KBD_HAS_DEVICE(kbd)) { 905 error = write_kbd(state->kbdc, KBDC_SET_LEDS, 906 ledmap[i & LED_MASK]); 907 if (error) { 908 splx(s); 909 return error; 910 } 911 } 912 KBD_LED_VAL(kbd) = *(int *)arg; 913 break; 914 915 case KDGKBSTATE: /* get lock key state */ 916 *(int *)arg = state->ks_state & LOCK_MASK; 917 break; 918 case KDSKBSTATE: /* set lock key state */ 919 if (*(int *)arg & ~LOCK_MASK) { 920 splx(s); 921 return EINVAL; 922 } 923 state->ks_state &= ~LOCK_MASK; 924 state->ks_state |= *(int *)arg; 925 splx(s); 926 /* set LEDs and quit */ 927 return atkbd_ioctl(kbd, KDSETLED, arg); 928 929 case KDSETREPEAT: /* set keyboard repeat rate (new interface) */ 930 splx(s); 931 if (!KBD_HAS_DEVICE(kbd)) 932 return 0; 933 i = typematic(((int *)arg)[0], ((int *)arg)[1]); 934 error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, i); 935 if (error == 0) { 936 kbd->kb_delay1 = typematic_delay(i); 937 kbd->kb_delay2 = typematic_rate(i); 938 } 939 return error; 940 941 case KDSETRAD: /* set keyboard repeat rate (old interface) */ 942 splx(s); 943 if (!KBD_HAS_DEVICE(kbd)) 944 return 0; 945 error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, *(int *)arg); 946 if (error == 0) { 947 kbd->kb_delay1 = typematic_delay(*(int *)arg); 948 kbd->kb_delay2 = typematic_rate(*(int *)arg); 949 } 950 return error; 951 952 case PIO_KEYMAP: /* set keyboard translation table */ 953 case PIO_KEYMAPENT: /* set keyboard translation table entry */ 954 case PIO_DEADKEYMAP: /* set accent key translation table */ 955 state->ks_accents = 0; 956 /* FALLTHROUGH */ 957 default: 958 splx(s); 959 return genkbd_commonioctl(kbd, cmd, arg); 960 } 961 962 splx(s); 963 return 0; 964 } 965 966 /* lock the access to the keyboard */ 967 static int 968 atkbd_lock(keyboard_t *kbd, int lock) 969 { 970 return kbdc_lock(((atkbd_state_t *)kbd->kb_data)->kbdc, lock); 971 } 972 973 /* clear the internal state of the keyboard */ 974 static void 975 atkbd_clear_state(keyboard_t *kbd) 976 { 977 atkbd_state_t *state; 978 979 state = (atkbd_state_t *)kbd->kb_data; 980 state->ks_flags = 0; 981 state->ks_polling = 0; 982 state->ks_state &= LOCK_MASK; /* preserve locking key state */ 983 state->ks_accents = 0; 984 state->ks_composed_char = 0; 985 #if 0 986 state->ks_prefix = 0; /* XXX */ 987 #endif 988 } 989 990 /* save the internal state */ 991 static int 992 atkbd_get_state(keyboard_t *kbd, void *buf, size_t len) 993 { 994 if (len == 0) 995 return sizeof(atkbd_state_t); 996 if (len < sizeof(atkbd_state_t)) 997 return -1; 998 bcopy(kbd->kb_data, buf, sizeof(atkbd_state_t)); 999 return 0; 1000 } 1001 1002 /* set the internal state */ 1003 static int 1004 atkbd_set_state(keyboard_t *kbd, void *buf, size_t len) 1005 { 1006 if (len < sizeof(atkbd_state_t)) 1007 return ENOMEM; 1008 if (((atkbd_state_t *)kbd->kb_data)->kbdc 1009 != ((atkbd_state_t *)buf)->kbdc) 1010 return ENOMEM; 1011 bcopy(buf, kbd->kb_data, sizeof(atkbd_state_t)); 1012 return 0; 1013 } 1014 1015 static int 1016 atkbd_poll(keyboard_t *kbd, int on) 1017 { 1018 atkbd_state_t *state; 1019 int s; 1020 1021 state = (atkbd_state_t *)kbd->kb_data; 1022 s = spltty(); 1023 if (on) 1024 ++state->ks_polling; 1025 else 1026 --state->ks_polling; 1027 splx(s); 1028 return 0; 1029 } 1030 1031 static void 1032 atkbd_shutdown_final(void *v) 1033 { 1034 #ifdef __sparc64__ 1035 keyboard_t *kbd = v; 1036 KBDC kbdc = ((atkbd_state_t *)kbd->kb_data)->kbdc; 1037 1038 /* 1039 * Turn off the translation in preparation for handing the keyboard 1040 * over to the OFW as the OBP driver doesn't use translation and 1041 * also doesn't disable it itself resulting in a broken keymap at 1042 * the boot prompt. Also disable the aux port and the interrupts as 1043 * the OBP driver doesn't use them, i.e. polls the keyboard. Not 1044 * disabling the interrupts doesn't cause real problems but the 1045 * responsiveness is a bit better when they are turned off. 1046 */ 1047 send_kbd_command(kbdc, KBDC_DISABLE_KBD); 1048 set_controller_command_byte(kbdc, 1049 KBD_AUX_CONTROL_BITS | KBD_KBD_CONTROL_BITS | KBD_TRANSLATION, 1050 KBD_DISABLE_AUX_PORT | KBD_DISABLE_KBD_INT | KBD_ENABLE_KBD_PORT); 1051 send_kbd_command(kbdc, KBDC_ENABLE_KBD); 1052 #endif 1053 } 1054 1055 /* local functions */ 1056 1057 static int 1058 get_typematic(keyboard_t *kbd) 1059 { 1060 #ifdef __i386__ 1061 /* 1062 * Only some systems allow us to retrieve the keyboard repeat 1063 * rate previously set via the BIOS... 1064 */ 1065 struct vm86frame vmf; 1066 u_int32_t p; 1067 1068 bzero(&vmf, sizeof(vmf)); 1069 vmf.vmf_ax = 0xc000; 1070 vm86_intcall(0x15, &vmf); 1071 if ((vmf.vmf_eflags & PSL_C) || vmf.vmf_ah) 1072 return ENODEV; 1073 p = BIOS_PADDRTOVADDR(((u_int32_t)vmf.vmf_es << 4) + vmf.vmf_bx); 1074 if ((readb(p + 6) & 0x40) == 0) /* int 16, function 0x09 supported? */ 1075 return ENODEV; 1076 vmf.vmf_ax = 0x0900; 1077 vm86_intcall(0x16, &vmf); 1078 if ((vmf.vmf_al & 0x08) == 0) /* int 16, function 0x0306 supported? */ 1079 return ENODEV; 1080 vmf.vmf_ax = 0x0306; 1081 vm86_intcall(0x16, &vmf); 1082 kbd->kb_delay1 = typematic_delay(vmf.vmf_bh << 5); 1083 kbd->kb_delay2 = typematic_rate(vmf.vmf_bl); 1084 return 0; 1085 #else 1086 return ENODEV; 1087 #endif /* __i386__ */ 1088 } 1089 1090 static int 1091 setup_kbd_port(KBDC kbdc, int port, int intr) 1092 { 1093 if (!set_controller_command_byte(kbdc, 1094 KBD_KBD_CONTROL_BITS, 1095 ((port) ? KBD_ENABLE_KBD_PORT : KBD_DISABLE_KBD_PORT) 1096 | ((intr) ? KBD_ENABLE_KBD_INT : KBD_DISABLE_KBD_INT))) 1097 return 1; 1098 return 0; 1099 } 1100 1101 static int 1102 get_kbd_echo(KBDC kbdc) 1103 { 1104 /* enable the keyboard port, but disable the keyboard intr. */ 1105 if (setup_kbd_port(kbdc, TRUE, FALSE)) 1106 /* CONTROLLER ERROR: there is very little we can do... */ 1107 return ENXIO; 1108 1109 /* see if something is present */ 1110 write_kbd_command(kbdc, KBDC_ECHO); 1111 if (read_kbd_data(kbdc) != KBD_ECHO) { 1112 empty_both_buffers(kbdc, 10); 1113 test_controller(kbdc); 1114 test_kbd_port(kbdc); 1115 return ENXIO; 1116 } 1117 1118 /* enable the keyboard port and intr. */ 1119 if (setup_kbd_port(kbdc, TRUE, TRUE)) { 1120 /* 1121 * CONTROLLER ERROR 1122 * This is serious; the keyboard intr is left disabled! 1123 */ 1124 return ENXIO; 1125 } 1126 1127 return 0; 1128 } 1129 1130 static int 1131 probe_keyboard(KBDC kbdc, int flags) 1132 { 1133 /* 1134 * Don't try to print anything in this function. The low-level 1135 * console may not have been initialized yet... 1136 */ 1137 int err; 1138 int c; 1139 int m; 1140 1141 if (!kbdc_lock(kbdc, TRUE)) { 1142 /* driver error? */ 1143 return ENXIO; 1144 } 1145 1146 /* temporarily block data transmission from the keyboard */ 1147 write_controller_command(kbdc, KBDC_DISABLE_KBD_PORT); 1148 1149 /* flush any noise in the buffer */ 1150 empty_both_buffers(kbdc, 100); 1151 1152 /* save the current keyboard controller command byte */ 1153 m = kbdc_get_device_mask(kbdc) & ~KBD_KBD_CONTROL_BITS; 1154 c = get_controller_command_byte(kbdc); 1155 if (c == -1) { 1156 /* CONTROLLER ERROR */ 1157 kbdc_set_device_mask(kbdc, m); 1158 kbdc_lock(kbdc, FALSE); 1159 return ENXIO; 1160 } 1161 1162 /* 1163 * The keyboard may have been screwed up by the boot block. 1164 * We may just be able to recover from error by testing the controller 1165 * and the keyboard port. The controller command byte needs to be 1166 * saved before this recovery operation, as some controllers seem 1167 * to set the command byte to particular values. 1168 */ 1169 test_controller(kbdc); 1170 if (!(flags & KB_CONF_NO_PROBE_TEST)) 1171 test_kbd_port(kbdc); 1172 1173 err = get_kbd_echo(kbdc); 1174 1175 /* 1176 * Even if the keyboard doesn't seem to be present (err != 0), 1177 * we shall enable the keyboard port and interrupt so that 1178 * the driver will be operable when the keyboard is attached 1179 * to the system later. It is NOT recommended to hot-plug 1180 * the AT keyboard, but many people do so... 1181 */ 1182 kbdc_set_device_mask(kbdc, m | KBD_KBD_CONTROL_BITS); 1183 setup_kbd_port(kbdc, TRUE, TRUE); 1184 #if 0 1185 if (err == 0) { 1186 kbdc_set_device_mask(kbdc, m | KBD_KBD_CONTROL_BITS); 1187 } else { 1188 /* try to restore the command byte as before */ 1189 set_controller_command_byte(kbdc, 0xff, c); 1190 kbdc_set_device_mask(kbdc, m); 1191 } 1192 #endif 1193 1194 kbdc_lock(kbdc, FALSE); 1195 return err; 1196 } 1197 1198 static int 1199 init_keyboard(KBDC kbdc, int *type, int flags) 1200 { 1201 int codeset; 1202 int id; 1203 int c; 1204 1205 if (!kbdc_lock(kbdc, TRUE)) { 1206 /* driver error? */ 1207 return EIO; 1208 } 1209 1210 /* temporarily block data transmission from the keyboard */ 1211 write_controller_command(kbdc, KBDC_DISABLE_KBD_PORT); 1212 1213 /* save the current controller command byte */ 1214 empty_both_buffers(kbdc, 200); 1215 c = get_controller_command_byte(kbdc); 1216 if (c == -1) { 1217 /* CONTROLLER ERROR */ 1218 kbdc_lock(kbdc, FALSE); 1219 printf("atkbd: unable to get the current command byte value.\n"); 1220 return EIO; 1221 } 1222 if (bootverbose) 1223 printf("atkbd: the current kbd controller command byte %04x\n", 1224 c); 1225 #if 0 1226 /* override the keyboard lock switch */ 1227 c |= KBD_OVERRIDE_KBD_LOCK; 1228 #endif 1229 1230 /* enable the keyboard port, but disable the keyboard intr. */ 1231 if (setup_kbd_port(kbdc, TRUE, FALSE)) { 1232 /* CONTROLLER ERROR: there is very little we can do... */ 1233 printf("atkbd: unable to set the command byte.\n"); 1234 kbdc_lock(kbdc, FALSE); 1235 return EIO; 1236 } 1237 1238 /* 1239 * Check if we have an XT keyboard before we attempt to reset it. 1240 * The procedure assumes that the keyboard and the controller have 1241 * been set up properly by BIOS and have not been messed up 1242 * during the boot process. 1243 */ 1244 codeset = -1; 1245 if (flags & KB_CONF_ALT_SCANCODESET) 1246 /* the user says there is a XT keyboard */ 1247 codeset = 1; 1248 #ifdef KBD_DETECT_XT_KEYBOARD 1249 else if ((c & KBD_TRANSLATION) == 0) { 1250 /* SET_SCANCODE_SET is not always supported; ignore error */ 1251 if (send_kbd_command_and_data(kbdc, KBDC_SET_SCANCODE_SET, 0) 1252 == KBD_ACK) 1253 codeset = read_kbd_data(kbdc); 1254 } 1255 if (bootverbose) 1256 printf("atkbd: scancode set %d\n", codeset); 1257 #endif /* KBD_DETECT_XT_KEYBOARD */ 1258 1259 *type = KB_OTHER; 1260 id = get_kbd_id(kbdc); 1261 switch(id) { 1262 case 0x41ab: /* 101/102/... Enhanced */ 1263 case 0x83ab: /* ditto */ 1264 case 0x54ab: /* SpaceSaver */ 1265 case 0x84ab: /* ditto */ 1266 #if 0 1267 case 0x90ab: /* 'G' */ 1268 case 0x91ab: /* 'P' */ 1269 case 0x92ab: /* 'A' */ 1270 #endif 1271 *type = KB_101; 1272 break; 1273 case -1: /* AT 84 keyboard doesn't return ID */ 1274 *type = KB_84; 1275 break; 1276 default: 1277 break; 1278 } 1279 if (bootverbose) 1280 printf("atkbd: keyboard ID 0x%x (%d)\n", id, *type); 1281 1282 /* reset keyboard hardware */ 1283 if (!(flags & KB_CONF_NO_RESET) && !reset_kbd(kbdc)) { 1284 /* 1285 * KEYBOARD ERROR 1286 * Keyboard reset may fail either because the keyboard 1287 * doen't exist, or because the keyboard doesn't pass 1288 * the self-test, or the keyboard controller on the 1289 * motherboard and the keyboard somehow fail to shake hands. 1290 * It is just possible, particularly in the last case, 1291 * that the keyboard controller may be left in a hung state. 1292 * test_controller() and test_kbd_port() appear to bring 1293 * the keyboard controller back (I don't know why and how, 1294 * though.) 1295 */ 1296 empty_both_buffers(kbdc, 10); 1297 test_controller(kbdc); 1298 test_kbd_port(kbdc); 1299 /* 1300 * We could disable the keyboard port and interrupt... but, 1301 * the keyboard may still exist (see above). 1302 */ 1303 set_controller_command_byte(kbdc, 0xff, c); 1304 kbdc_lock(kbdc, FALSE); 1305 if (bootverbose) 1306 printf("atkbd: failed to reset the keyboard.\n"); 1307 return EIO; 1308 } 1309 1310 /* 1311 * Allow us to set the XT_KEYBD flag so that keyboards 1312 * such as those on the IBM ThinkPad laptop computers can be used 1313 * with the standard console driver. 1314 */ 1315 if (codeset == 1) { 1316 if (send_kbd_command_and_data(kbdc, 1317 KBDC_SET_SCANCODE_SET, codeset) == KBD_ACK) { 1318 /* XT kbd doesn't need scan code translation */ 1319 c &= ~KBD_TRANSLATION; 1320 } else { 1321 /* 1322 * KEYBOARD ERROR 1323 * The XT kbd isn't usable unless the proper scan 1324 * code set is selected. 1325 */ 1326 set_controller_command_byte(kbdc, 0xff, c); 1327 kbdc_lock(kbdc, FALSE); 1328 printf("atkbd: unable to set the XT keyboard mode.\n"); 1329 return EIO; 1330 } 1331 } 1332 1333 #if defined(__alpha__) || defined(__sparc64__) 1334 if (send_kbd_command_and_data( 1335 kbdc, KBDC_SET_SCANCODE_SET, 2) != KBD_ACK) { 1336 printf("atkbd: can't set translation.\n"); 1337 } 1338 c |= KBD_TRANSLATION; 1339 #endif 1340 1341 /* enable the keyboard port and intr. */ 1342 if (!set_controller_command_byte(kbdc, 1343 KBD_KBD_CONTROL_BITS | KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK, 1344 (c & (KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK)) 1345 | KBD_ENABLE_KBD_PORT | KBD_ENABLE_KBD_INT)) { 1346 /* 1347 * CONTROLLER ERROR 1348 * This is serious; we are left with the disabled 1349 * keyboard intr. 1350 */ 1351 set_controller_command_byte(kbdc, 0xff, c); 1352 kbdc_lock(kbdc, FALSE); 1353 printf("atkbd: unable to enable the keyboard port and intr.\n"); 1354 return EIO; 1355 } 1356 1357 kbdc_lock(kbdc, FALSE); 1358 return 0; 1359 } 1360 1361 static int 1362 write_kbd(KBDC kbdc, int command, int data) 1363 { 1364 int s; 1365 1366 /* prevent the timeout routine from polling the keyboard */ 1367 if (!kbdc_lock(kbdc, TRUE)) 1368 return EBUSY; 1369 1370 /* disable the keyboard and mouse interrupt */ 1371 s = spltty(); 1372 #if 0 1373 c = get_controller_command_byte(kbdc); 1374 if ((c == -1) 1375 || !set_controller_command_byte(kbdc, 1376 kbdc_get_device_mask(kbdc), 1377 KBD_DISABLE_KBD_PORT | KBD_DISABLE_KBD_INT 1378 | KBD_DISABLE_AUX_PORT | KBD_DISABLE_AUX_INT)) { 1379 /* CONTROLLER ERROR */ 1380 kbdc_lock(kbdc, FALSE); 1381 splx(s); 1382 return EIO; 1383 } 1384 /* 1385 * Now that the keyboard controller is told not to generate 1386 * the keyboard and mouse interrupts, call `splx()' to allow 1387 * the other tty interrupts. The clock interrupt may also occur, 1388 * but the timeout routine (`scrn_timer()') will be blocked 1389 * by the lock flag set via `kbdc_lock()' 1390 */ 1391 splx(s); 1392 #endif 1393 1394 if (send_kbd_command_and_data(kbdc, command, data) != KBD_ACK) 1395 send_kbd_command(kbdc, KBDC_ENABLE_KBD); 1396 1397 #if 0 1398 /* restore the interrupts */ 1399 if (!set_controller_command_byte(kbdc, 1400 kbdc_get_device_mask(kbdc), 1401 c & (KBD_KBD_CONTROL_BITS | KBD_AUX_CONTROL_BITS))) { 1402 /* CONTROLLER ERROR */ 1403 } 1404 #else 1405 splx(s); 1406 #endif 1407 kbdc_lock(kbdc, FALSE); 1408 1409 return 0; 1410 } 1411 1412 static int 1413 get_kbd_id(KBDC kbdc) 1414 { 1415 int id1, id2; 1416 1417 empty_both_buffers(kbdc, 10); 1418 id1 = id2 = -1; 1419 if (send_kbd_command(kbdc, KBDC_SEND_DEV_ID) != KBD_ACK) 1420 return -1; 1421 1422 DELAY(10000); /* 10 msec delay */ 1423 id1 = read_kbd_data(kbdc); 1424 if (id1 != -1) 1425 id2 = read_kbd_data(kbdc); 1426 1427 if ((id1 == -1) || (id2 == -1)) { 1428 empty_both_buffers(kbdc, 10); 1429 test_controller(kbdc); 1430 test_kbd_port(kbdc); 1431 return -1; 1432 } 1433 return ((id2 << 8) | id1); 1434 } 1435 1436 static int delays[] = { 250, 500, 750, 1000 }; 1437 static int rates[] = { 34, 38, 42, 46, 50, 55, 59, 63, 1438 68, 76, 84, 92, 100, 110, 118, 126, 1439 136, 152, 168, 184, 200, 220, 236, 252, 1440 272, 304, 336, 368, 400, 440, 472, 504 }; 1441 1442 static int 1443 typematic_delay(int i) 1444 { 1445 return delays[(i >> 5) & 3]; 1446 } 1447 1448 static int 1449 typematic_rate(int i) 1450 { 1451 return rates[i & 0x1f]; 1452 } 1453 1454 static int 1455 typematic(int delay, int rate) 1456 { 1457 int value; 1458 int i; 1459 1460 for (i = sizeof(delays)/sizeof(delays[0]) - 1; i > 0; --i) { 1461 if (delay >= delays[i]) 1462 break; 1463 } 1464 value = i << 5; 1465 for (i = sizeof(rates)/sizeof(rates[0]) - 1; i > 0; --i) { 1466 if (rate >= rates[i]) 1467 break; 1468 } 1469 value |= i; 1470 return value; 1471 } 1472