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