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_compat.h" 32 #include "opt_kbd.h" 33 #include "opt_atkbd.h" 34 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/kernel.h> 38 #include <sys/bus.h> 39 #include <sys/eventhandler.h> 40 #include <sys/proc.h> 41 #include <sys/limits.h> 42 #include <sys/malloc.h> 43 44 #include <machine/bus.h> 45 #include <machine/resource.h> 46 47 #if defined(__i386__) || defined(__amd64__) 48 #include <machine/md_var.h> 49 #include <machine/psl.h> 50 #include <compat/x86bios/x86bios.h> 51 #include <machine/pc/bios.h> 52 53 #include <vm/vm.h> 54 #include <vm/pmap.h> 55 #include <vm/vm_param.h> 56 57 #include <isa/isareg.h> 58 #endif /* __i386__ || __amd64__ */ 59 60 #include <sys/kbio.h> 61 #include <dev/kbd/kbdreg.h> 62 #include <dev/atkbdc/atkbdreg.h> 63 #include <dev/atkbdc/atkbdcreg.h> 64 65 typedef struct atkbd_state { 66 KBDC kbdc; /* keyboard controller */ 67 int ks_mode; /* input mode (K_XLATE,K_RAW,K_CODE) */ 68 int ks_flags; /* flags */ 69 #define COMPOSE (1 << 0) 70 int ks_polling; 71 int ks_state; /* shift/lock key state */ 72 int ks_accents; /* accent key index (> 0) */ 73 u_int ks_composed_char; /* composed char code (> 0) */ 74 u_char ks_prefix; /* AT scan code prefix */ 75 struct callout ks_timer; 76 } atkbd_state_t; 77 78 static void atkbd_timeout(void *arg); 79 static void atkbd_shutdown_final(void *v); 80 81 int 82 atkbd_probe_unit(device_t dev, int irq, int flags) 83 { 84 keyboard_switch_t *sw; 85 int args[2]; 86 int error; 87 88 sw = kbd_get_switch(ATKBD_DRIVER_NAME); 89 if (sw == NULL) 90 return ENXIO; 91 92 args[0] = device_get_unit(device_get_parent(dev)); 93 args[1] = irq; 94 error = (*sw->probe)(device_get_unit(dev), args, flags); 95 if (error) 96 return error; 97 return 0; 98 } 99 100 int 101 atkbd_attach_unit(device_t dev, keyboard_t **kbd, int irq, int flags) 102 { 103 keyboard_switch_t *sw; 104 atkbd_state_t *state; 105 int args[2]; 106 int error; 107 int unit; 108 109 sw = kbd_get_switch(ATKBD_DRIVER_NAME); 110 if (sw == NULL) 111 return ENXIO; 112 113 /* reset, initialize and enable the device */ 114 unit = device_get_unit(dev); 115 args[0] = device_get_unit(device_get_parent(dev)); 116 args[1] = irq; 117 *kbd = NULL; 118 error = (*sw->probe)(unit, args, flags); 119 if (error) 120 return error; 121 error = (*sw->init)(unit, kbd, args, flags); 122 if (error) 123 return error; 124 (*sw->enable)(*kbd); 125 126 #ifdef KBD_INSTALL_CDEV 127 /* attach a virtual keyboard cdev */ 128 error = kbd_attach(*kbd); 129 if (error) 130 return error; 131 #endif 132 133 /* 134 * This is a kludge to compensate for lost keyboard interrupts. 135 * A similar code used to be in syscons. See below. XXX 136 */ 137 state = (atkbd_state_t *)(*kbd)->kb_data; 138 callout_init(&state->ks_timer, 0); 139 atkbd_timeout(*kbd); 140 141 if (bootverbose) 142 (*sw->diag)(*kbd, bootverbose); 143 144 EVENTHANDLER_REGISTER(shutdown_final, atkbd_shutdown_final, *kbd, 145 SHUTDOWN_PRI_DEFAULT); 146 147 return 0; 148 } 149 150 static void 151 atkbd_timeout(void *arg) 152 { 153 atkbd_state_t *state; 154 keyboard_t *kbd; 155 int s; 156 157 /* 158 * The original text of the following comments are extracted 159 * from syscons.c (1.287) 160 * 161 * With release 2.1 of the Xaccel server, the keyboard is left 162 * hanging pretty often. Apparently an interrupt from the 163 * keyboard is lost, and I don't know why (yet). 164 * This ugly hack calls the low-level interrupt routine if input 165 * is ready for the keyboard and conveniently hides the problem. XXX 166 * 167 * Try removing anything stuck in the keyboard controller; whether 168 * it's a keyboard scan code or mouse data. The low-level 169 * interrupt routine doesn't read the mouse data directly, 170 * but the keyboard controller driver will, as a side effect. 171 */ 172 /* 173 * And here is bde's original comment about this: 174 * 175 * This is necessary to handle edge triggered interrupts - if we 176 * returned when our IRQ is high due to unserviced input, then there 177 * would be no more keyboard IRQs until the keyboard is reset by 178 * external powers. 179 * 180 * The keyboard apparently unwedges the irq in most cases. 181 */ 182 s = spltty(); 183 kbd = (keyboard_t *)arg; 184 if (kbdd_lock(kbd, TRUE)) { 185 /* 186 * We have seen the lock flag is not set. Let's reset 187 * the flag early, otherwise the LED update routine fails 188 * which may want the lock during the interrupt routine. 189 */ 190 kbdd_lock(kbd, FALSE); 191 if (kbdd_check_char(kbd)) 192 kbdd_intr(kbd, NULL); 193 } 194 splx(s); 195 state = (atkbd_state_t *)kbd->kb_data; 196 callout_reset(&state->ks_timer, hz / 10, atkbd_timeout, arg); 197 } 198 199 /* LOW-LEVEL */ 200 201 #define ATKBD_DEFAULT 0 202 203 /* keyboard driver declaration */ 204 static int atkbd_configure(int flags); 205 static kbd_probe_t atkbd_probe; 206 static kbd_init_t atkbd_init; 207 static kbd_term_t atkbd_term; 208 static kbd_intr_t atkbd_intr; 209 static kbd_test_if_t atkbd_test_if; 210 static kbd_enable_t atkbd_enable; 211 static kbd_disable_t atkbd_disable; 212 static kbd_read_t atkbd_read; 213 static kbd_check_t atkbd_check; 214 static kbd_read_char_t atkbd_read_char; 215 static kbd_check_char_t atkbd_check_char; 216 static kbd_ioctl_t atkbd_ioctl; 217 static kbd_lock_t atkbd_lock; 218 static kbd_clear_state_t atkbd_clear_state; 219 static kbd_get_state_t atkbd_get_state; 220 static kbd_set_state_t atkbd_set_state; 221 static kbd_poll_mode_t atkbd_poll; 222 223 static keyboard_switch_t atkbdsw = { 224 atkbd_probe, 225 atkbd_init, 226 atkbd_term, 227 atkbd_intr, 228 atkbd_test_if, 229 atkbd_enable, 230 atkbd_disable, 231 atkbd_read, 232 atkbd_check, 233 atkbd_read_char, 234 atkbd_check_char, 235 atkbd_ioctl, 236 atkbd_lock, 237 atkbd_clear_state, 238 atkbd_get_state, 239 atkbd_set_state, 240 genkbd_get_fkeystr, 241 atkbd_poll, 242 genkbd_diag, 243 }; 244 245 KEYBOARD_DRIVER(atkbd, atkbdsw, atkbd_configure); 246 247 /* local functions */ 248 static int get_typematic(keyboard_t *kbd); 249 static int setup_kbd_port(KBDC kbdc, int port, int intr); 250 static int get_kbd_echo(KBDC kbdc); 251 static int probe_keyboard(KBDC kbdc, int flags); 252 static int init_keyboard(KBDC kbdc, int *type, int flags); 253 static int write_kbd(KBDC kbdc, int command, int data); 254 static int get_kbd_id(KBDC kbdc); 255 static int typematic(int delay, int rate); 256 static int typematic_delay(int delay); 257 static int typematic_rate(int rate); 258 259 /* local variables */ 260 261 /* the initial key map, accent map and fkey strings */ 262 #ifdef ATKBD_DFLT_KEYMAP 263 #define KBD_DFLT_KEYMAP 264 #include "atkbdmap.h" 265 #endif 266 #include <dev/kbd/kbdtables.h> 267 268 /* structures for the default keyboard */ 269 static keyboard_t default_kbd; 270 static atkbd_state_t default_kbd_state; 271 static keymap_t default_keymap; 272 static accentmap_t default_accentmap; 273 static fkeytab_t default_fkeytab[NUM_FKEYS]; 274 275 /* 276 * The back door to the keyboard driver! 277 * This function is called by the console driver, via the kbdio module, 278 * to tickle keyboard drivers when the low-level console is being initialized. 279 * Almost nothing in the kernel has been initialied yet. Try to probe 280 * keyboards if possible. 281 * NOTE: because of the way the low-level console is initialized, this routine 282 * may be called more than once!! 283 */ 284 static int 285 atkbd_configure(int flags) 286 { 287 keyboard_t *kbd; 288 int arg[2]; 289 int i; 290 291 /* 292 * Probe the keyboard controller, if not present or if the driver 293 * is disabled, unregister the keyboard if any. 294 */ 295 if (atkbdc_configure() != 0 || 296 resource_disabled("atkbd", ATKBD_DEFAULT)) { 297 i = kbd_find_keyboard(ATKBD_DRIVER_NAME, ATKBD_DEFAULT); 298 if (i >= 0) { 299 kbd = kbd_get_keyboard(i); 300 kbd_unregister(kbd); 301 kbd->kb_flags &= ~KB_REGISTERED; 302 } 303 return 0; 304 } 305 306 /* XXX: a kludge to obtain the device configuration flags */ 307 if (resource_int_value("atkbd", ATKBD_DEFAULT, "flags", &i) == 0) 308 flags |= i; 309 310 /* probe the default keyboard */ 311 arg[0] = -1; 312 arg[1] = -1; 313 kbd = NULL; 314 if (atkbd_probe(ATKBD_DEFAULT, arg, flags)) 315 return 0; 316 if (atkbd_init(ATKBD_DEFAULT, &kbd, arg, flags)) 317 return 0; 318 319 /* return the number of found keyboards */ 320 return 1; 321 } 322 323 /* low-level functions */ 324 325 /* detect a keyboard */ 326 static int 327 atkbd_probe(int unit, void *arg, int flags) 328 { 329 KBDC kbdc; 330 int *data = (int *)arg; /* data[0]: controller, data[1]: irq */ 331 332 /* XXX */ 333 if (unit == ATKBD_DEFAULT) { 334 if (KBD_IS_PROBED(&default_kbd)) 335 return 0; 336 } 337 338 kbdc = atkbdc_open(data[0]); 339 if (kbdc == NULL) 340 return ENXIO; 341 if (probe_keyboard(kbdc, flags)) { 342 if (flags & KB_CONF_FAIL_IF_NO_KBD) 343 return ENXIO; 344 } 345 return 0; 346 } 347 348 /* reset and initialize the device */ 349 static int 350 atkbd_init(int unit, keyboard_t **kbdp, void *arg, int flags) 351 { 352 keyboard_t *kbd; 353 atkbd_state_t *state; 354 keymap_t *keymap; 355 accentmap_t *accmap; 356 fkeytab_t *fkeymap; 357 int fkeymap_size; 358 int delay[2]; 359 int *data = (int *)arg; /* data[0]: controller, data[1]: irq */ 360 int error, needfree; 361 362 /* XXX */ 363 if (unit == ATKBD_DEFAULT) { 364 *kbdp = kbd = &default_kbd; 365 if (KBD_IS_INITIALIZED(kbd) && KBD_IS_CONFIGURED(kbd)) 366 return 0; 367 state = &default_kbd_state; 368 keymap = &default_keymap; 369 accmap = &default_accentmap; 370 fkeymap = default_fkeytab; 371 fkeymap_size = 372 sizeof(default_fkeytab)/sizeof(default_fkeytab[0]); 373 needfree = 0; 374 } else if (*kbdp == NULL) { 375 *kbdp = kbd = malloc(sizeof(*kbd), M_DEVBUF, M_NOWAIT | M_ZERO); 376 state = malloc(sizeof(*state), M_DEVBUF, M_NOWAIT | M_ZERO); 377 /* NB: these will always be initialized 'cuz !KBD_IS_PROBED */ 378 keymap = malloc(sizeof(key_map), M_DEVBUF, M_NOWAIT); 379 accmap = malloc(sizeof(accent_map), M_DEVBUF, M_NOWAIT); 380 fkeymap = malloc(sizeof(fkey_tab), M_DEVBUF, M_NOWAIT); 381 fkeymap_size = sizeof(fkey_tab)/sizeof(fkey_tab[0]); 382 needfree = 1; 383 if ((kbd == NULL) || (state == NULL) || (keymap == NULL) 384 || (accmap == NULL) || (fkeymap == NULL)) { 385 error = ENOMEM; 386 goto bad; 387 } 388 } else if (KBD_IS_INITIALIZED(*kbdp) && KBD_IS_CONFIGURED(*kbdp)) { 389 return 0; 390 } else { 391 kbd = *kbdp; 392 state = (atkbd_state_t *)kbd->kb_data; 393 bzero(state, sizeof(*state)); 394 keymap = kbd->kb_keymap; 395 accmap = kbd->kb_accentmap; 396 fkeymap = kbd->kb_fkeytab; 397 fkeymap_size = kbd->kb_fkeytab_size; 398 needfree = 0; 399 } 400 401 if (!KBD_IS_PROBED(kbd)) { 402 state->kbdc = atkbdc_open(data[0]); 403 if (state->kbdc == NULL) { 404 error = ENXIO; 405 goto bad; 406 } 407 kbd_init_struct(kbd, ATKBD_DRIVER_NAME, KB_OTHER, unit, flags, 408 0, 0); 409 bcopy(&key_map, keymap, sizeof(key_map)); 410 bcopy(&accent_map, accmap, sizeof(accent_map)); 411 bcopy(fkey_tab, fkeymap, 412 imin(fkeymap_size * sizeof(fkeymap[0]), sizeof(fkey_tab))); 413 kbd_set_maps(kbd, keymap, accmap, fkeymap, fkeymap_size); 414 kbd->kb_data = (void *)state; 415 416 if (probe_keyboard(state->kbdc, flags)) { /* shouldn't happen */ 417 if (flags & KB_CONF_FAIL_IF_NO_KBD) { 418 error = ENXIO; 419 goto bad; 420 } 421 } else { 422 KBD_FOUND_DEVICE(kbd); 423 } 424 atkbd_clear_state(kbd); 425 state->ks_mode = K_XLATE; 426 /* 427 * FIXME: set the initial value for lock keys in ks_state 428 * according to the BIOS data? 429 */ 430 KBD_PROBE_DONE(kbd); 431 } 432 if (!KBD_IS_INITIALIZED(kbd) && !(flags & KB_CONF_PROBE_ONLY)) { 433 kbd->kb_config = flags & ~KB_CONF_PROBE_ONLY; 434 if (KBD_HAS_DEVICE(kbd) 435 && init_keyboard(state->kbdc, &kbd->kb_type, kbd->kb_config) 436 && (kbd->kb_config & KB_CONF_FAIL_IF_NO_KBD)) { 437 kbd_unregister(kbd); 438 error = ENXIO; 439 goto bad; 440 } 441 atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state); 442 get_typematic(kbd); 443 delay[0] = kbd->kb_delay1; 444 delay[1] = kbd->kb_delay2; 445 atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay); 446 KBD_INIT_DONE(kbd); 447 } 448 if (!KBD_IS_CONFIGURED(kbd)) { 449 if (kbd_register(kbd) < 0) { 450 error = ENXIO; 451 goto bad; 452 } 453 KBD_CONFIG_DONE(kbd); 454 } 455 456 return 0; 457 bad: 458 if (needfree) { 459 if (state != NULL) 460 free(state, M_DEVBUF); 461 if (keymap != NULL) 462 free(keymap, M_DEVBUF); 463 if (accmap != NULL) 464 free(accmap, M_DEVBUF); 465 if (fkeymap != NULL) 466 free(fkeymap, M_DEVBUF); 467 if (kbd != NULL) { 468 free(kbd, M_DEVBUF); 469 *kbdp = NULL; /* insure ref doesn't leak to caller */ 470 } 471 } 472 return error; 473 } 474 475 /* finish using this keyboard */ 476 static int 477 atkbd_term(keyboard_t *kbd) 478 { 479 atkbd_state_t *state = (atkbd_state_t *)kbd->kb_data; 480 481 kbd_unregister(kbd); 482 callout_drain(&state->ks_timer); 483 return 0; 484 } 485 486 /* keyboard interrupt routine */ 487 static int 488 atkbd_intr(keyboard_t *kbd, void *arg) 489 { 490 atkbd_state_t *state = (atkbd_state_t *)kbd->kb_data; 491 int delay[2]; 492 int c; 493 494 if (!KBD_HAS_DEVICE(kbd)) { 495 /* 496 * The keyboard was not detected before; 497 * it must have been reconnected! 498 */ 499 init_keyboard(state->kbdc, &kbd->kb_type, kbd->kb_config); 500 KBD_FOUND_DEVICE(kbd); 501 atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state); 502 get_typematic(kbd); 503 delay[0] = kbd->kb_delay1; 504 delay[1] = kbd->kb_delay2; 505 atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay); 506 } 507 508 if (state->ks_polling) 509 return 0; 510 511 if (KBD_IS_ACTIVE(kbd) && KBD_IS_BUSY(kbd)) { 512 /* let the callback function to process the input */ 513 (*kbd->kb_callback.kc_func)(kbd, KBDIO_KEYINPUT, 514 kbd->kb_callback.kc_arg); 515 } else { 516 /* read and discard the input; no one is waiting for input */ 517 do { 518 c = atkbd_read_char(kbd, FALSE); 519 } while (c != NOKEY); 520 } 521 return 0; 522 } 523 524 /* test the interface to the device */ 525 static int 526 atkbd_test_if(keyboard_t *kbd) 527 { 528 int error; 529 int s; 530 531 error = 0; 532 empty_both_buffers(((atkbd_state_t *)kbd->kb_data)->kbdc, 10); 533 s = spltty(); 534 if (!test_controller(((atkbd_state_t *)kbd->kb_data)->kbdc)) 535 error = EIO; 536 else if (test_kbd_port(((atkbd_state_t *)kbd->kb_data)->kbdc) != 0) 537 error = EIO; 538 splx(s); 539 540 return error; 541 } 542 543 /* 544 * Enable the access to the device; until this function is called, 545 * the client cannot read from the keyboard. 546 */ 547 static int 548 atkbd_enable(keyboard_t *kbd) 549 { 550 int s; 551 552 s = spltty(); 553 KBD_ACTIVATE(kbd); 554 splx(s); 555 return 0; 556 } 557 558 /* disallow the access to the device */ 559 static int 560 atkbd_disable(keyboard_t *kbd) 561 { 562 int s; 563 564 s = spltty(); 565 KBD_DEACTIVATE(kbd); 566 splx(s); 567 return 0; 568 } 569 570 /* read one byte from the keyboard if it's allowed */ 571 static int 572 atkbd_read(keyboard_t *kbd, int wait) 573 { 574 int c; 575 576 if (wait) 577 c = read_kbd_data(((atkbd_state_t *)kbd->kb_data)->kbdc); 578 else 579 c = read_kbd_data_no_wait(((atkbd_state_t *)kbd->kb_data)->kbdc); 580 if (c != -1) 581 ++kbd->kb_count; 582 return (KBD_IS_ACTIVE(kbd) ? c : -1); 583 } 584 585 /* check if data is waiting */ 586 static int 587 atkbd_check(keyboard_t *kbd) 588 { 589 if (!KBD_IS_ACTIVE(kbd)) 590 return FALSE; 591 return kbdc_data_ready(((atkbd_state_t *)kbd->kb_data)->kbdc); 592 } 593 594 /* read char from the keyboard */ 595 static u_int 596 atkbd_read_char(keyboard_t *kbd, int wait) 597 { 598 atkbd_state_t *state; 599 u_int action; 600 int scancode; 601 int keycode; 602 603 state = (atkbd_state_t *)kbd->kb_data; 604 next_code: 605 /* do we have a composed char to return? */ 606 if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0)) { 607 action = state->ks_composed_char; 608 state->ks_composed_char = 0; 609 if (action > UCHAR_MAX) 610 return ERRKEY; 611 return action; 612 } 613 614 /* see if there is something in the keyboard port */ 615 if (wait) { 616 do { 617 scancode = read_kbd_data(state->kbdc); 618 } while (scancode == -1); 619 } else { 620 scancode = read_kbd_data_no_wait(state->kbdc); 621 if (scancode == -1) 622 return NOKEY; 623 } 624 ++kbd->kb_count; 625 626 #if KBDIO_DEBUG >= 10 627 printf("atkbd_read_char(): scancode:0x%x\n", scancode); 628 #endif 629 630 /* return the byte as is for the K_RAW mode */ 631 if (state->ks_mode == K_RAW) 632 return scancode; 633 634 /* translate the scan code into a keycode */ 635 keycode = scancode & 0x7F; 636 switch (state->ks_prefix) { 637 case 0x00: /* normal scancode */ 638 switch(scancode) { 639 case 0xB8: /* left alt (compose key) released */ 640 if (state->ks_flags & COMPOSE) { 641 state->ks_flags &= ~COMPOSE; 642 if (state->ks_composed_char > UCHAR_MAX) 643 state->ks_composed_char = 0; 644 } 645 break; 646 case 0x38: /* left alt (compose key) pressed */ 647 if (!(state->ks_flags & COMPOSE)) { 648 state->ks_flags |= COMPOSE; 649 state->ks_composed_char = 0; 650 } 651 break; 652 case 0xE0: 653 case 0xE1: 654 state->ks_prefix = scancode; 655 goto next_code; 656 } 657 break; 658 case 0xE0: /* 0xE0 prefix */ 659 state->ks_prefix = 0; 660 switch (keycode) { 661 case 0x1C: /* right enter key */ 662 keycode = 0x59; 663 break; 664 case 0x1D: /* right ctrl key */ 665 keycode = 0x5A; 666 break; 667 case 0x35: /* keypad divide key */ 668 keycode = 0x5B; 669 break; 670 case 0x37: /* print scrn key */ 671 keycode = 0x5C; 672 break; 673 case 0x38: /* right alt key (alt gr) */ 674 keycode = 0x5D; 675 break; 676 case 0x46: /* ctrl-pause/break on AT 101 (see below) */ 677 keycode = 0x68; 678 break; 679 case 0x47: /* grey home key */ 680 keycode = 0x5E; 681 break; 682 case 0x48: /* grey up arrow key */ 683 keycode = 0x5F; 684 break; 685 case 0x49: /* grey page up key */ 686 keycode = 0x60; 687 break; 688 case 0x4B: /* grey left arrow key */ 689 keycode = 0x61; 690 break; 691 case 0x4D: /* grey right arrow key */ 692 keycode = 0x62; 693 break; 694 case 0x4F: /* grey end key */ 695 keycode = 0x63; 696 break; 697 case 0x50: /* grey down arrow key */ 698 keycode = 0x64; 699 break; 700 case 0x51: /* grey page down key */ 701 keycode = 0x65; 702 break; 703 case 0x52: /* grey insert key */ 704 keycode = 0x66; 705 break; 706 case 0x53: /* grey delete key */ 707 keycode = 0x67; 708 break; 709 /* the following 3 are only used on the MS "Natural" keyboard */ 710 case 0x5b: /* left Window key */ 711 keycode = 0x69; 712 break; 713 case 0x5c: /* right Window key */ 714 keycode = 0x6a; 715 break; 716 case 0x5d: /* menu key */ 717 keycode = 0x6b; 718 break; 719 case 0x5e: /* power key */ 720 keycode = 0x6d; 721 break; 722 case 0x5f: /* sleep key */ 723 keycode = 0x6e; 724 break; 725 case 0x63: /* wake key */ 726 keycode = 0x6f; 727 break; 728 default: /* ignore everything else */ 729 goto next_code; 730 } 731 break; 732 case 0xE1: /* 0xE1 prefix */ 733 /* 734 * The pause/break key on the 101 keyboard produces: 735 * E1-1D-45 E1-9D-C5 736 * Ctrl-pause/break produces: 737 * E0-46 E0-C6 (See above.) 738 */ 739 state->ks_prefix = 0; 740 if (keycode == 0x1D) 741 state->ks_prefix = 0x1D; 742 goto next_code; 743 /* NOT REACHED */ 744 case 0x1D: /* pause / break */ 745 state->ks_prefix = 0; 746 if (keycode != 0x45) 747 goto next_code; 748 keycode = 0x68; 749 break; 750 } 751 752 if (kbd->kb_type == KB_84) { 753 switch (keycode) { 754 case 0x37: /* *(numpad)/print screen */ 755 if (state->ks_flags & SHIFTS) 756 keycode = 0x5c; /* print screen */ 757 break; 758 case 0x45: /* num lock/pause */ 759 if (state->ks_flags & CTLS) 760 keycode = 0x68; /* pause */ 761 break; 762 case 0x46: /* scroll lock/break */ 763 if (state->ks_flags & CTLS) 764 keycode = 0x6c; /* break */ 765 break; 766 } 767 } else if (kbd->kb_type == KB_101) { 768 switch (keycode) { 769 case 0x5c: /* print screen */ 770 if (state->ks_flags & ALTS) 771 keycode = 0x54; /* sysrq */ 772 break; 773 case 0x68: /* pause/break */ 774 if (state->ks_flags & CTLS) 775 keycode = 0x6c; /* break */ 776 break; 777 } 778 } 779 780 /* return the key code in the K_CODE mode */ 781 if (state->ks_mode == K_CODE) 782 return (keycode | (scancode & 0x80)); 783 784 /* compose a character code */ 785 if (state->ks_flags & COMPOSE) { 786 switch (keycode | (scancode & 0x80)) { 787 /* key pressed, process it */ 788 case 0x47: case 0x48: case 0x49: /* keypad 7,8,9 */ 789 state->ks_composed_char *= 10; 790 state->ks_composed_char += keycode - 0x40; 791 if (state->ks_composed_char > UCHAR_MAX) 792 return ERRKEY; 793 goto next_code; 794 case 0x4B: case 0x4C: case 0x4D: /* keypad 4,5,6 */ 795 state->ks_composed_char *= 10; 796 state->ks_composed_char += keycode - 0x47; 797 if (state->ks_composed_char > UCHAR_MAX) 798 return ERRKEY; 799 goto next_code; 800 case 0x4F: case 0x50: case 0x51: /* keypad 1,2,3 */ 801 state->ks_composed_char *= 10; 802 state->ks_composed_char += keycode - 0x4E; 803 if (state->ks_composed_char > UCHAR_MAX) 804 return ERRKEY; 805 goto next_code; 806 case 0x52: /* keypad 0 */ 807 state->ks_composed_char *= 10; 808 if (state->ks_composed_char > UCHAR_MAX) 809 return ERRKEY; 810 goto next_code; 811 812 /* key released, no interest here */ 813 case 0xC7: case 0xC8: case 0xC9: /* keypad 7,8,9 */ 814 case 0xCB: case 0xCC: case 0xCD: /* keypad 4,5,6 */ 815 case 0xCF: case 0xD0: case 0xD1: /* keypad 1,2,3 */ 816 case 0xD2: /* keypad 0 */ 817 goto next_code; 818 819 case 0x38: /* left alt key */ 820 break; 821 822 default: 823 if (state->ks_composed_char > 0) { 824 state->ks_flags &= ~COMPOSE; 825 state->ks_composed_char = 0; 826 return ERRKEY; 827 } 828 break; 829 } 830 } 831 832 /* keycode to key action */ 833 action = genkbd_keyaction(kbd, keycode, scancode & 0x80, 834 &state->ks_state, &state->ks_accents); 835 if (action == NOKEY) 836 goto next_code; 837 else 838 return action; 839 } 840 841 /* check if char is waiting */ 842 static int 843 atkbd_check_char(keyboard_t *kbd) 844 { 845 atkbd_state_t *state; 846 847 if (!KBD_IS_ACTIVE(kbd)) 848 return FALSE; 849 state = (atkbd_state_t *)kbd->kb_data; 850 if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0)) 851 return TRUE; 852 return kbdc_data_ready(state->kbdc); 853 } 854 855 /* some useful control functions */ 856 static int 857 atkbd_ioctl(keyboard_t *kbd, u_long cmd, caddr_t arg) 858 { 859 /* translate LED_XXX bits into the device specific bits */ 860 static u_char ledmap[8] = { 861 0, 4, 2, 6, 1, 5, 3, 7, 862 }; 863 atkbd_state_t *state = kbd->kb_data; 864 int error; 865 int s; 866 int i; 867 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 868 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 869 int ival; 870 #endif 871 872 s = spltty(); 873 switch (cmd) { 874 875 case KDGKBMODE: /* get keyboard mode */ 876 *(int *)arg = state->ks_mode; 877 break; 878 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 879 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 880 case _IO('K', 7): 881 ival = IOCPARM_IVAL(arg); 882 arg = (caddr_t)&ival; 883 /* FALLTHROUGH */ 884 #endif 885 case KDSKBMODE: /* set keyboard mode */ 886 switch (*(int *)arg) { 887 case K_XLATE: 888 if (state->ks_mode != K_XLATE) { 889 /* make lock key state and LED state match */ 890 state->ks_state &= ~LOCK_MASK; 891 state->ks_state |= KBD_LED_VAL(kbd); 892 } 893 /* FALLTHROUGH */ 894 case K_RAW: 895 case K_CODE: 896 if (state->ks_mode != *(int *)arg) { 897 atkbd_clear_state(kbd); 898 state->ks_mode = *(int *)arg; 899 } 900 break; 901 default: 902 splx(s); 903 return EINVAL; 904 } 905 break; 906 907 case KDGETLED: /* get keyboard LED */ 908 *(int *)arg = KBD_LED_VAL(kbd); 909 break; 910 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 911 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 912 case _IO('K', 66): 913 ival = IOCPARM_IVAL(arg); 914 arg = (caddr_t)&ival; 915 /* FALLTHROUGH */ 916 #endif 917 case KDSETLED: /* set keyboard LED */ 918 /* NOTE: lock key state in ks_state won't be changed */ 919 if (*(int *)arg & ~LOCK_MASK) { 920 splx(s); 921 return EINVAL; 922 } 923 i = *(int *)arg; 924 /* replace CAPS LED with ALTGR LED for ALTGR keyboards */ 925 if (state->ks_mode == K_XLATE && 926 kbd->kb_keymap->n_keys > ALTGR_OFFSET) { 927 if (i & ALKED) 928 i |= CLKED; 929 else 930 i &= ~CLKED; 931 } 932 if (KBD_HAS_DEVICE(kbd)) { 933 error = write_kbd(state->kbdc, KBDC_SET_LEDS, 934 ledmap[i & LED_MASK]); 935 if (error) { 936 splx(s); 937 return error; 938 } 939 } 940 KBD_LED_VAL(kbd) = *(int *)arg; 941 break; 942 943 case KDGKBSTATE: /* get lock key state */ 944 *(int *)arg = state->ks_state & LOCK_MASK; 945 break; 946 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 947 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 948 case _IO('K', 20): 949 ival = IOCPARM_IVAL(arg); 950 arg = (caddr_t)&ival; 951 /* FALLTHROUGH */ 952 #endif 953 case KDSKBSTATE: /* set lock key state */ 954 if (*(int *)arg & ~LOCK_MASK) { 955 splx(s); 956 return EINVAL; 957 } 958 state->ks_state &= ~LOCK_MASK; 959 state->ks_state |= *(int *)arg; 960 splx(s); 961 /* set LEDs and quit */ 962 return atkbd_ioctl(kbd, KDSETLED, arg); 963 964 case KDSETREPEAT: /* set keyboard repeat rate (new interface) */ 965 splx(s); 966 if (!KBD_HAS_DEVICE(kbd)) 967 return 0; 968 i = typematic(((int *)arg)[0], ((int *)arg)[1]); 969 error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, i); 970 if (error == 0) { 971 kbd->kb_delay1 = typematic_delay(i); 972 kbd->kb_delay2 = typematic_rate(i); 973 } 974 return error; 975 976 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 977 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 978 case _IO('K', 67): 979 ival = IOCPARM_IVAL(arg); 980 arg = (caddr_t)&ival; 981 /* FALLTHROUGH */ 982 #endif 983 case KDSETRAD: /* set keyboard repeat rate (old interface) */ 984 splx(s); 985 if (!KBD_HAS_DEVICE(kbd)) 986 return 0; 987 error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, *(int *)arg); 988 if (error == 0) { 989 kbd->kb_delay1 = typematic_delay(*(int *)arg); 990 kbd->kb_delay2 = typematic_rate(*(int *)arg); 991 } 992 return error; 993 994 case PIO_KEYMAP: /* set keyboard translation table */ 995 case OPIO_KEYMAP: /* set keyboard translation table (compat) */ 996 case PIO_KEYMAPENT: /* set keyboard translation table entry */ 997 case PIO_DEADKEYMAP: /* set accent key translation table */ 998 state->ks_accents = 0; 999 /* FALLTHROUGH */ 1000 default: 1001 splx(s); 1002 return genkbd_commonioctl(kbd, cmd, arg); 1003 } 1004 1005 splx(s); 1006 return 0; 1007 } 1008 1009 /* lock the access to the keyboard */ 1010 static int 1011 atkbd_lock(keyboard_t *kbd, int lock) 1012 { 1013 return kbdc_lock(((atkbd_state_t *)kbd->kb_data)->kbdc, lock); 1014 } 1015 1016 /* clear the internal state of the keyboard */ 1017 static void 1018 atkbd_clear_state(keyboard_t *kbd) 1019 { 1020 atkbd_state_t *state; 1021 1022 state = (atkbd_state_t *)kbd->kb_data; 1023 state->ks_flags = 0; 1024 state->ks_polling = 0; 1025 state->ks_state &= LOCK_MASK; /* preserve locking key state */ 1026 state->ks_accents = 0; 1027 state->ks_composed_char = 0; 1028 #if 0 1029 state->ks_prefix = 0; /* XXX */ 1030 #endif 1031 } 1032 1033 /* save the internal state */ 1034 static int 1035 atkbd_get_state(keyboard_t *kbd, void *buf, size_t len) 1036 { 1037 if (len == 0) 1038 return sizeof(atkbd_state_t); 1039 if (len < sizeof(atkbd_state_t)) 1040 return -1; 1041 bcopy(kbd->kb_data, buf, sizeof(atkbd_state_t)); 1042 return 0; 1043 } 1044 1045 /* set the internal state */ 1046 static int 1047 atkbd_set_state(keyboard_t *kbd, void *buf, size_t len) 1048 { 1049 if (len < sizeof(atkbd_state_t)) 1050 return ENOMEM; 1051 if (((atkbd_state_t *)kbd->kb_data)->kbdc 1052 != ((atkbd_state_t *)buf)->kbdc) 1053 return ENOMEM; 1054 bcopy(buf, kbd->kb_data, sizeof(atkbd_state_t)); 1055 return 0; 1056 } 1057 1058 static int 1059 atkbd_poll(keyboard_t *kbd, int on) 1060 { 1061 atkbd_state_t *state; 1062 int s; 1063 1064 state = (atkbd_state_t *)kbd->kb_data; 1065 s = spltty(); 1066 if (on) 1067 ++state->ks_polling; 1068 else 1069 --state->ks_polling; 1070 splx(s); 1071 return 0; 1072 } 1073 1074 static void 1075 atkbd_shutdown_final(void *v) 1076 { 1077 #ifdef __sparc64__ 1078 keyboard_t *kbd = v; 1079 KBDC kbdc = ((atkbd_state_t *)kbd->kb_data)->kbdc; 1080 1081 /* 1082 * Turn off the translation in preparation for handing the keyboard 1083 * over to the OFW as the OBP driver doesn't use translation and 1084 * also doesn't disable it itself resulting in a broken keymap at 1085 * the boot prompt. Also disable the aux port and the interrupts as 1086 * the OBP driver doesn't use them, i.e. polls the keyboard. Not 1087 * disabling the interrupts doesn't cause real problems but the 1088 * responsiveness is a bit better when they are turned off. 1089 */ 1090 send_kbd_command(kbdc, KBDC_DISABLE_KBD); 1091 set_controller_command_byte(kbdc, 1092 KBD_AUX_CONTROL_BITS | KBD_KBD_CONTROL_BITS | KBD_TRANSLATION, 1093 KBD_DISABLE_AUX_PORT | KBD_DISABLE_KBD_INT | KBD_ENABLE_KBD_PORT); 1094 send_kbd_command(kbdc, KBDC_ENABLE_KBD); 1095 #endif 1096 } 1097 1098 /* local functions */ 1099 1100 static int 1101 get_typematic(keyboard_t *kbd) 1102 { 1103 #if defined(__i386__) || defined(__amd64__) 1104 /* 1105 * Only some systems allow us to retrieve the keyboard repeat 1106 * rate previously set via the BIOS... 1107 */ 1108 x86regs_t regs; 1109 uint8_t *p; 1110 1111 /* 1112 * Traditional entry points of int 0x15 and 0x16 are fixed 1113 * and later BIOSes follow them. (U)EFI CSM specification 1114 * also mandates these fixed entry points. 1115 * 1116 * Validate the entry points here before we proceed further. 1117 * It's known that some recent laptops does not have the 1118 * same entry point and hang on boot if we call it. 1119 */ 1120 if (x86bios_get_intr(0x15) != 0xf000f859 || 1121 x86bios_get_intr(0x16) != 0xf000e82e) 1122 return (ENODEV); 1123 1124 /* Is BIOS system configuration table supported? */ 1125 x86bios_init_regs(®s); 1126 regs.R_AH = 0xc0; 1127 x86bios_intr(®s, 0x15); 1128 if ((regs.R_FLG & PSL_C) != 0 || regs.R_AH != 0) 1129 return (ENODEV); 1130 1131 /* Is int 0x16, function 0x09 supported? */ 1132 p = x86bios_offset((regs.R_ES << 4) + regs.R_BX); 1133 if (readw(p) < 5 || (readb(p + 6) & 0x40) == 0) 1134 return (ENODEV); 1135 1136 /* Is int 0x16, function 0x0306 supported? */ 1137 x86bios_init_regs(®s); 1138 regs.R_AH = 0x09; 1139 x86bios_intr(®s, 0x16); 1140 if ((regs.R_AL & 0x08) == 0) 1141 return (ENODEV); 1142 1143 x86bios_init_regs(®s); 1144 regs.R_AX = 0x0306; 1145 x86bios_intr(®s, 0x16); 1146 kbd->kb_delay1 = typematic_delay(regs.R_BH << 5); 1147 kbd->kb_delay2 = typematic_rate(regs.R_BL); 1148 return (0); 1149 #else 1150 return (ENODEV); 1151 #endif /* __i386__ || __amd64__ */ 1152 } 1153 1154 static int 1155 setup_kbd_port(KBDC kbdc, int port, int intr) 1156 { 1157 if (!set_controller_command_byte(kbdc, 1158 KBD_KBD_CONTROL_BITS, 1159 ((port) ? KBD_ENABLE_KBD_PORT : KBD_DISABLE_KBD_PORT) 1160 | ((intr) ? KBD_ENABLE_KBD_INT : KBD_DISABLE_KBD_INT))) 1161 return 1; 1162 return 0; 1163 } 1164 1165 static int 1166 get_kbd_echo(KBDC kbdc) 1167 { 1168 /* enable the keyboard port, but disable the keyboard intr. */ 1169 if (setup_kbd_port(kbdc, TRUE, FALSE)) 1170 /* CONTROLLER ERROR: there is very little we can do... */ 1171 return ENXIO; 1172 1173 /* see if something is present */ 1174 write_kbd_command(kbdc, KBDC_ECHO); 1175 if (read_kbd_data(kbdc) != KBD_ECHO) { 1176 empty_both_buffers(kbdc, 10); 1177 test_controller(kbdc); 1178 test_kbd_port(kbdc); 1179 return ENXIO; 1180 } 1181 1182 /* enable the keyboard port and intr. */ 1183 if (setup_kbd_port(kbdc, TRUE, TRUE)) { 1184 /* 1185 * CONTROLLER ERROR 1186 * This is serious; the keyboard intr is left disabled! 1187 */ 1188 return ENXIO; 1189 } 1190 1191 return 0; 1192 } 1193 1194 static int 1195 probe_keyboard(KBDC kbdc, int flags) 1196 { 1197 /* 1198 * Don't try to print anything in this function. The low-level 1199 * console may not have been initialized yet... 1200 */ 1201 int err; 1202 int c; 1203 int m; 1204 1205 if (!kbdc_lock(kbdc, TRUE)) { 1206 /* driver error? */ 1207 return ENXIO; 1208 } 1209 1210 /* temporarily block data transmission from the keyboard */ 1211 write_controller_command(kbdc, KBDC_DISABLE_KBD_PORT); 1212 1213 /* flush any noise in the buffer */ 1214 empty_both_buffers(kbdc, 100); 1215 1216 /* save the current keyboard controller command byte */ 1217 m = kbdc_get_device_mask(kbdc) & ~KBD_KBD_CONTROL_BITS; 1218 c = get_controller_command_byte(kbdc); 1219 if (c == -1) { 1220 /* CONTROLLER ERROR */ 1221 kbdc_set_device_mask(kbdc, m); 1222 kbdc_lock(kbdc, FALSE); 1223 return ENXIO; 1224 } 1225 1226 /* 1227 * The keyboard may have been screwed up by the boot block. 1228 * We may just be able to recover from error by testing the controller 1229 * and the keyboard port. The controller command byte needs to be 1230 * saved before this recovery operation, as some controllers seem 1231 * to set the command byte to particular values. 1232 */ 1233 test_controller(kbdc); 1234 if (!(flags & KB_CONF_NO_PROBE_TEST)) 1235 test_kbd_port(kbdc); 1236 1237 err = get_kbd_echo(kbdc); 1238 1239 /* 1240 * Even if the keyboard doesn't seem to be present (err != 0), 1241 * we shall enable the keyboard port and interrupt so that 1242 * the driver will be operable when the keyboard is attached 1243 * to the system later. It is NOT recommended to hot-plug 1244 * the AT keyboard, but many people do so... 1245 */ 1246 kbdc_set_device_mask(kbdc, m | KBD_KBD_CONTROL_BITS); 1247 setup_kbd_port(kbdc, TRUE, TRUE); 1248 #if 0 1249 if (err == 0) { 1250 kbdc_set_device_mask(kbdc, m | KBD_KBD_CONTROL_BITS); 1251 } else { 1252 /* try to restore the command byte as before */ 1253 set_controller_command_byte(kbdc, 0xff, c); 1254 kbdc_set_device_mask(kbdc, m); 1255 } 1256 #endif 1257 1258 kbdc_lock(kbdc, FALSE); 1259 return err; 1260 } 1261 1262 static int 1263 init_keyboard(KBDC kbdc, int *type, int flags) 1264 { 1265 int codeset; 1266 int id; 1267 int c; 1268 1269 if (!kbdc_lock(kbdc, TRUE)) { 1270 /* driver error? */ 1271 return EIO; 1272 } 1273 1274 /* temporarily block data transmission from the keyboard */ 1275 write_controller_command(kbdc, KBDC_DISABLE_KBD_PORT); 1276 1277 /* save the current controller command byte */ 1278 empty_both_buffers(kbdc, 200); 1279 c = get_controller_command_byte(kbdc); 1280 if (c == -1) { 1281 /* CONTROLLER ERROR */ 1282 kbdc_lock(kbdc, FALSE); 1283 printf("atkbd: unable to get the current command byte value.\n"); 1284 return EIO; 1285 } 1286 if (bootverbose) 1287 printf("atkbd: the current kbd controller command byte %04x\n", 1288 c); 1289 #if 0 1290 /* override the keyboard lock switch */ 1291 c |= KBD_OVERRIDE_KBD_LOCK; 1292 #endif 1293 1294 /* enable the keyboard port, but disable the keyboard intr. */ 1295 if (setup_kbd_port(kbdc, TRUE, FALSE)) { 1296 /* CONTROLLER ERROR: there is very little we can do... */ 1297 printf("atkbd: unable to set the command byte.\n"); 1298 kbdc_lock(kbdc, FALSE); 1299 return EIO; 1300 } 1301 1302 /* 1303 * Check if we have an XT keyboard before we attempt to reset it. 1304 * The procedure assumes that the keyboard and the controller have 1305 * been set up properly by BIOS and have not been messed up 1306 * during the boot process. 1307 */ 1308 codeset = -1; 1309 if (flags & KB_CONF_ALT_SCANCODESET) 1310 /* the user says there is a XT keyboard */ 1311 codeset = 1; 1312 #ifdef KBD_DETECT_XT_KEYBOARD 1313 else if ((c & KBD_TRANSLATION) == 0) { 1314 /* SET_SCANCODE_SET is not always supported; ignore error */ 1315 if (send_kbd_command_and_data(kbdc, KBDC_SET_SCANCODE_SET, 0) 1316 == KBD_ACK) 1317 codeset = read_kbd_data(kbdc); 1318 } 1319 if (bootverbose) 1320 printf("atkbd: scancode set %d\n", codeset); 1321 #endif /* KBD_DETECT_XT_KEYBOARD */ 1322 1323 *type = KB_OTHER; 1324 id = get_kbd_id(kbdc); 1325 switch(id) { 1326 case 0x41ab: /* 101/102/... Enhanced */ 1327 case 0x83ab: /* ditto */ 1328 case 0x54ab: /* SpaceSaver */ 1329 case 0x84ab: /* ditto */ 1330 #if 0 1331 case 0x90ab: /* 'G' */ 1332 case 0x91ab: /* 'P' */ 1333 case 0x92ab: /* 'A' */ 1334 #endif 1335 *type = KB_101; 1336 break; 1337 case -1: /* AT 84 keyboard doesn't return ID */ 1338 *type = KB_84; 1339 break; 1340 default: 1341 break; 1342 } 1343 if (bootverbose) 1344 printf("atkbd: keyboard ID 0x%x (%d)\n", id, *type); 1345 1346 /* reset keyboard hardware */ 1347 if (!(flags & KB_CONF_NO_RESET) && !reset_kbd(kbdc)) { 1348 /* 1349 * KEYBOARD ERROR 1350 * Keyboard reset may fail either because the keyboard 1351 * doen't exist, or because the keyboard doesn't pass 1352 * the self-test, or the keyboard controller on the 1353 * motherboard and the keyboard somehow fail to shake hands. 1354 * It is just possible, particularly in the last case, 1355 * that the keyboard controller may be left in a hung state. 1356 * test_controller() and test_kbd_port() appear to bring 1357 * the keyboard controller back (I don't know why and how, 1358 * though.) 1359 */ 1360 empty_both_buffers(kbdc, 10); 1361 test_controller(kbdc); 1362 test_kbd_port(kbdc); 1363 /* 1364 * We could disable the keyboard port and interrupt... but, 1365 * the keyboard may still exist (see above). 1366 */ 1367 set_controller_command_byte(kbdc, 0xff, c); 1368 kbdc_lock(kbdc, FALSE); 1369 if (bootverbose) 1370 printf("atkbd: failed to reset the keyboard.\n"); 1371 return EIO; 1372 } 1373 1374 /* 1375 * Allow us to set the XT_KEYBD flag so that keyboards 1376 * such as those on the IBM ThinkPad laptop computers can be used 1377 * with the standard console driver. 1378 */ 1379 if (codeset == 1) { 1380 if (send_kbd_command_and_data(kbdc, 1381 KBDC_SET_SCANCODE_SET, codeset) == KBD_ACK) { 1382 /* XT kbd doesn't need scan code translation */ 1383 c &= ~KBD_TRANSLATION; 1384 } else { 1385 /* 1386 * KEYBOARD ERROR 1387 * The XT kbd isn't usable unless the proper scan 1388 * code set is selected. 1389 */ 1390 set_controller_command_byte(kbdc, 0xff, c); 1391 kbdc_lock(kbdc, FALSE); 1392 printf("atkbd: unable to set the XT keyboard mode.\n"); 1393 return EIO; 1394 } 1395 } 1396 1397 #if defined(__sparc64__) 1398 if (send_kbd_command_and_data( 1399 kbdc, KBDC_SET_SCANCODE_SET, 2) != KBD_ACK) { 1400 printf("atkbd: can't set translation.\n"); 1401 } 1402 c |= KBD_TRANSLATION; 1403 #endif 1404 1405 /* enable the keyboard port and intr. */ 1406 if (!set_controller_command_byte(kbdc, 1407 KBD_KBD_CONTROL_BITS | KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK, 1408 (c & (KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK)) 1409 | KBD_ENABLE_KBD_PORT | KBD_ENABLE_KBD_INT)) { 1410 /* 1411 * CONTROLLER ERROR 1412 * This is serious; we are left with the disabled 1413 * keyboard intr. 1414 */ 1415 set_controller_command_byte(kbdc, 0xff, c); 1416 kbdc_lock(kbdc, FALSE); 1417 printf("atkbd: unable to enable the keyboard port and intr.\n"); 1418 return EIO; 1419 } 1420 1421 kbdc_lock(kbdc, FALSE); 1422 return 0; 1423 } 1424 1425 static int 1426 write_kbd(KBDC kbdc, int command, int data) 1427 { 1428 int s; 1429 1430 /* prevent the timeout routine from polling the keyboard */ 1431 if (!kbdc_lock(kbdc, TRUE)) 1432 return EBUSY; 1433 1434 /* disable the keyboard and mouse interrupt */ 1435 s = spltty(); 1436 #if 0 1437 c = get_controller_command_byte(kbdc); 1438 if ((c == -1) 1439 || !set_controller_command_byte(kbdc, 1440 kbdc_get_device_mask(kbdc), 1441 KBD_DISABLE_KBD_PORT | KBD_DISABLE_KBD_INT 1442 | KBD_DISABLE_AUX_PORT | KBD_DISABLE_AUX_INT)) { 1443 /* CONTROLLER ERROR */ 1444 kbdc_lock(kbdc, FALSE); 1445 splx(s); 1446 return EIO; 1447 } 1448 /* 1449 * Now that the keyboard controller is told not to generate 1450 * the keyboard and mouse interrupts, call `splx()' to allow 1451 * the other tty interrupts. The clock interrupt may also occur, 1452 * but the timeout routine (`scrn_timer()') will be blocked 1453 * by the lock flag set via `kbdc_lock()' 1454 */ 1455 splx(s); 1456 #endif 1457 if (send_kbd_command_and_data(kbdc, command, data) != KBD_ACK) 1458 send_kbd_command(kbdc, KBDC_ENABLE_KBD); 1459 #if 0 1460 /* restore the interrupts */ 1461 if (!set_controller_command_byte(kbdc, kbdc_get_device_mask(kbdc), 1462 c & (KBD_KBD_CONTROL_BITS | KBD_AUX_CONTROL_BITS))) { 1463 /* CONTROLLER ERROR */ 1464 } 1465 #else 1466 splx(s); 1467 #endif 1468 kbdc_lock(kbdc, FALSE); 1469 1470 return 0; 1471 } 1472 1473 static int 1474 get_kbd_id(KBDC kbdc) 1475 { 1476 int id1, id2; 1477 1478 empty_both_buffers(kbdc, 10); 1479 id1 = id2 = -1; 1480 if (send_kbd_command(kbdc, KBDC_SEND_DEV_ID) != KBD_ACK) 1481 return -1; 1482 1483 DELAY(10000); /* 10 msec delay */ 1484 id1 = read_kbd_data(kbdc); 1485 if (id1 != -1) 1486 id2 = read_kbd_data(kbdc); 1487 1488 if ((id1 == -1) || (id2 == -1)) { 1489 empty_both_buffers(kbdc, 10); 1490 test_controller(kbdc); 1491 test_kbd_port(kbdc); 1492 return -1; 1493 } 1494 return ((id2 << 8) | id1); 1495 } 1496 1497 static int delays[] = { 250, 500, 750, 1000 }; 1498 static int rates[] = { 34, 38, 42, 46, 50, 55, 59, 63, 1499 68, 76, 84, 92, 100, 110, 118, 126, 1500 136, 152, 168, 184, 200, 220, 236, 252, 1501 272, 304, 336, 368, 400, 440, 472, 504 }; 1502 1503 static int 1504 typematic_delay(int i) 1505 { 1506 return delays[(i >> 5) & 3]; 1507 } 1508 1509 static int 1510 typematic_rate(int i) 1511 { 1512 return rates[i & 0x1f]; 1513 } 1514 1515 static int 1516 typematic(int delay, int rate) 1517 { 1518 int value; 1519 int i; 1520 1521 for (i = sizeof(delays)/sizeof(delays[0]) - 1; i > 0; --i) { 1522 if (delay >= delays[i]) 1523 break; 1524 } 1525 value = i << 5; 1526 for (i = sizeof(rates)/sizeof(rates[0]) - 1; i > 0; --i) { 1527 if (rate >= rates[i]) 1528 break; 1529 } 1530 value |= i; 1531 return value; 1532 } 1533