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