Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/dev/atkbdc/atkbd.c
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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 #ifdef __i386__ 48 #include <machine/md_var.h> 49 #include <machine/psl.h> 50 #include <machine/vm86.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__ */ 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 static timeout_t atkbd_timeout; 66 static void atkbd_shutdown_final(void *v); 67 68 int 69 atkbd_probe_unit(int unit, int ctlr, int irq, int flags) 70 { 71 keyboard_switch_t *sw; 72 int args[2]; 73 int error; 74 75 sw = kbd_get_switch(ATKBD_DRIVER_NAME); 76 if (sw == NULL) 77 return ENXIO; 78 79 args[0] = ctlr; 80 args[1] = irq; 81 error = (*sw->probe)(unit, args, flags); 82 if (error) 83 return error; 84 return 0; 85 } 86 87 int 88 atkbd_attach_unit(int unit, keyboard_t **kbd, int ctlr, int irq, int flags) 89 { 90 keyboard_switch_t *sw; 91 int args[2]; 92 int error; 93 94 sw = kbd_get_switch(ATKBD_DRIVER_NAME); 95 if (sw == NULL) 96 return ENXIO; 97 98 /* reset, initialize and enable the device */ 99 args[0] = ctlr; 100 args[1] = irq; 101 *kbd = NULL; 102 error = (*sw->probe)(unit, args, flags); 103 if (error) 104 return error; 105 error = (*sw->init)(unit, kbd, args, flags); 106 if (error) 107 return error; 108 (*sw->enable)(*kbd); 109 110 #ifdef KBD_INSTALL_CDEV 111 /* attach a virtual keyboard cdev */ 112 error = kbd_attach(*kbd); 113 if (error) 114 return error; 115 #endif 116 117 /* 118 * This is a kludge to compensate for lost keyboard interrupts. 119 * A similar code used to be in syscons. See below. XXX 120 */ 121 atkbd_timeout(*kbd); 122 123 if (bootverbose) 124 (*sw->diag)(*kbd, bootverbose); 125 126 EVENTHANDLER_REGISTER(shutdown_final, atkbd_shutdown_final, *kbd, 127 SHUTDOWN_PRI_DEFAULT); 128 129 return 0; 130 } 131 132 static void 133 atkbd_timeout(void *arg) 134 { 135 keyboard_t *kbd; 136 int s; 137 138 /* 139 * The original text of the following comments are extracted 140 * from syscons.c (1.287) 141 * 142 * With release 2.1 of the Xaccel server, the keyboard is left 143 * hanging pretty often. Apparently an interrupt from the 144 * keyboard is lost, and I don't know why (yet). 145 * This ugly hack calls the low-level interrupt routine if input 146 * is ready for the keyboard and conveniently hides the problem. XXX 147 * 148 * Try removing anything stuck in the keyboard controller; whether 149 * it's a keyboard scan code or mouse data. The low-level 150 * interrupt routine doesn't read the mouse data directly, 151 * but the keyboard controller driver will, as a side effect. 152 */ 153 /* 154 * And here is bde's original comment about this: 155 * 156 * This is necessary to handle edge triggered interrupts - if we 157 * returned when our IRQ is high due to unserviced input, then there 158 * would be no more keyboard IRQs until the keyboard is reset by 159 * external powers. 160 * 161 * The keyboard apparently unwedges the irq in most cases. 162 */ 163 s = spltty(); 164 kbd = (keyboard_t *)arg; 165 if ((*kbdsw[kbd->kb_index]->lock)(kbd, TRUE)) { 166 /* 167 * We have seen the lock flag is not set. Let's reset 168 * the flag early, otherwise the LED update routine fails 169 * which may want the lock during the interrupt routine. 170 */ 171 (*kbdsw[kbd->kb_index]->lock)(kbd, FALSE); 172 if ((*kbdsw[kbd->kb_index]->check_char)(kbd)) 173 (*kbdsw[kbd->kb_index]->intr)(kbd, NULL); 174 } 175 splx(s); 176 timeout(atkbd_timeout, arg, hz/10); 177 } 178 179 /* LOW-LEVEL */ 180 181 #define ATKBD_DEFAULT 0 182 183 typedef struct atkbd_state { 184 KBDC kbdc; /* keyboard controller */ 185 int ks_mode; /* input mode (K_XLATE,K_RAW,K_CODE) */ 186 int ks_flags; /* flags */ 187 #define COMPOSE (1 << 0) 188 int ks_polling; 189 int ks_state; /* shift/lock key state */ 190 int ks_accents; /* accent key index (> 0) */ 191 u_int ks_composed_char; /* composed char code (> 0) */ 192 u_char ks_prefix; /* AT scan code prefix */ 193 } atkbd_state_t; 194 195 /* keyboard driver declaration */ 196 static int atkbd_configure(int flags); 197 static kbd_probe_t atkbd_probe; 198 static kbd_init_t atkbd_init; 199 static kbd_term_t atkbd_term; 200 static kbd_intr_t atkbd_intr; 201 static kbd_test_if_t atkbd_test_if; 202 static kbd_enable_t atkbd_enable; 203 static kbd_disable_t atkbd_disable; 204 static kbd_read_t atkbd_read; 205 static kbd_check_t atkbd_check; 206 static kbd_read_char_t atkbd_read_char; 207 static kbd_check_char_t atkbd_check_char; 208 static kbd_ioctl_t atkbd_ioctl; 209 static kbd_lock_t atkbd_lock; 210 static kbd_clear_state_t atkbd_clear_state; 211 static kbd_get_state_t atkbd_get_state; 212 static kbd_set_state_t atkbd_set_state; 213 static kbd_poll_mode_t atkbd_poll; 214 215 static keyboard_switch_t atkbdsw = { 216 atkbd_probe, 217 atkbd_init, 218 atkbd_term, 219 atkbd_intr, 220 atkbd_test_if, 221 atkbd_enable, 222 atkbd_disable, 223 atkbd_read, 224 atkbd_check, 225 atkbd_read_char, 226 atkbd_check_char, 227 atkbd_ioctl, 228 atkbd_lock, 229 atkbd_clear_state, 230 atkbd_get_state, 231 atkbd_set_state, 232 genkbd_get_fkeystr, 233 atkbd_poll, 234 genkbd_diag, 235 }; 236 237 KEYBOARD_DRIVER(atkbd, atkbdsw, atkbd_configure); 238 239 /* local functions */ 240 static int get_typematic(keyboard_t *kbd); 241 static int setup_kbd_port(KBDC kbdc, int port, int intr); 242 static int get_kbd_echo(KBDC kbdc); 243 static int probe_keyboard(KBDC kbdc, int flags); 244 static int init_keyboard(KBDC kbdc, int *type, int flags); 245 static int write_kbd(KBDC kbdc, int command, int data); 246 static int get_kbd_id(KBDC kbdc); 247 static int typematic(int delay, int rate); 248 static int typematic_delay(int delay); 249 static int typematic_rate(int rate); 250 251 /* local variables */ 252 253 /* the initial key map, accent map and fkey strings */ 254 #ifdef ATKBD_DFLT_KEYMAP 255 #define KBD_DFLT_KEYMAP 256 #include "atkbdmap.h" 257 #endif 258 #include <dev/kbd/kbdtables.h> 259 260 /* structures for the default keyboard */ 261 static keyboard_t default_kbd; 262 static atkbd_state_t default_kbd_state; 263 static keymap_t default_keymap; 264 static accentmap_t default_accentmap; 265 static fkeytab_t default_fkeytab[NUM_FKEYS]; 266 267 /* 268 * The back door to the keyboard driver! 269 * This function is called by the console driver, via the kbdio module, 270 * to tickle keyboard drivers when the low-level console is being initialized. 271 * Almost nothing in the kernel has been initialied yet. Try to probe 272 * keyboards if possible. 273 * NOTE: because of the way the low-level console is initialized, this routine 274 * may be called more than once!! 275 */ 276 static int 277 atkbd_configure(int flags) 278 { 279 keyboard_t *kbd; 280 int arg[2]; 281 int i; 282 283 /* 284 * Probe the keyboard controller, if not present or if the driver 285 * is disabled, unregister the keyboard if any. 286 */ 287 if (atkbdc_configure() != 0 || 288 resource_disabled("atkbd", ATKBD_DEFAULT)) { 289 i = kbd_find_keyboard(ATKBD_DRIVER_NAME, ATKBD_DEFAULT); 290 if (i >= 0) { 291 kbd = kbd_get_keyboard(i); 292 kbd_unregister(kbd); 293 kbd->kb_flags &= ~KB_REGISTERED; 294 } 295 return 0; 296 } 297 298 /* XXX: a kludge to obtain the device configuration flags */ 299 if (resource_int_value("atkbd", ATKBD_DEFAULT, "flags", &i) == 0) 300 flags |= i; 301 302 /* probe the default keyboard */ 303 arg[0] = -1; 304 arg[1] = -1; 305 kbd = NULL; 306 if (atkbd_probe(ATKBD_DEFAULT, arg, flags)) 307 return 0; 308 if (atkbd_init(ATKBD_DEFAULT, &kbd, arg, flags)) 309 return 0; 310 311 /* return the number of found keyboards */ 312 return 1; 313 } 314 315 /* low-level functions */ 316 317 /* detect a keyboard */ 318 static int 319 atkbd_probe(int unit, void *arg, int flags) 320 { 321 KBDC kbdc; 322 int *data = (int *)arg; /* data[0]: controller, data[1]: irq */ 323 324 /* XXX */ 325 if (unit == ATKBD_DEFAULT) { 326 if (KBD_IS_PROBED(&default_kbd)) 327 return 0; 328 } 329 330 kbdc = atkbdc_open(data[0]); 331 if (kbdc == NULL) 332 return ENXIO; 333 if (probe_keyboard(kbdc, flags)) { 334 if (flags & KB_CONF_FAIL_IF_NO_KBD) 335 return ENXIO; 336 } 337 return 0; 338 } 339 340 /* reset and initialize the device */ 341 static int 342 atkbd_init(int unit, keyboard_t **kbdp, void *arg, int flags) 343 { 344 keyboard_t *kbd; 345 atkbd_state_t *state; 346 keymap_t *keymap; 347 accentmap_t *accmap; 348 fkeytab_t *fkeymap; 349 int fkeymap_size; 350 int delay[2]; 351 int *data = (int *)arg; /* data[0]: controller, data[1]: irq */ 352 int error, needfree; 353 354 /* XXX */ 355 if (unit == ATKBD_DEFAULT) { 356 *kbdp = kbd = &default_kbd; 357 if (KBD_IS_INITIALIZED(kbd) && KBD_IS_CONFIGURED(kbd)) 358 return 0; 359 state = &default_kbd_state; 360 keymap = &default_keymap; 361 accmap = &default_accentmap; 362 fkeymap = default_fkeytab; 363 fkeymap_size = 364 sizeof(default_fkeytab)/sizeof(default_fkeytab[0]); 365 needfree = 0; 366 } else if (*kbdp == NULL) { 367 *kbdp = kbd = malloc(sizeof(*kbd), M_DEVBUF, M_NOWAIT | M_ZERO); 368 state = malloc(sizeof(*state), M_DEVBUF, M_NOWAIT | M_ZERO); 369 /* NB: these will always be initialized 'cuz !KBD_IS_PROBED */ 370 keymap = malloc(sizeof(key_map), M_DEVBUF, M_NOWAIT); 371 accmap = malloc(sizeof(accent_map), M_DEVBUF, M_NOWAIT); 372 fkeymap = malloc(sizeof(fkey_tab), M_DEVBUF, M_NOWAIT); 373 fkeymap_size = sizeof(fkey_tab)/sizeof(fkey_tab[0]); 374 needfree = 1; 375 if ((kbd == NULL) || (state == NULL) || (keymap == NULL) 376 || (accmap == NULL) || (fkeymap == NULL)) { 377 error = ENOMEM; 378 goto bad; 379 } 380 } else if (KBD_IS_INITIALIZED(*kbdp) && KBD_IS_CONFIGURED(*kbdp)) { 381 return 0; 382 } else { 383 kbd = *kbdp; 384 state = (atkbd_state_t *)kbd->kb_data; 385 bzero(state, sizeof(*state)); 386 keymap = kbd->kb_keymap; 387 accmap = kbd->kb_accentmap; 388 fkeymap = kbd->kb_fkeytab; 389 fkeymap_size = kbd->kb_fkeytab_size; 390 needfree = 0; 391 } 392 393 if (!KBD_IS_PROBED(kbd)) { 394 state->kbdc = atkbdc_open(data[0]); 395 if (state->kbdc == NULL) { 396 error = ENXIO; 397 goto bad; 398 } 399 kbd_init_struct(kbd, ATKBD_DRIVER_NAME, KB_OTHER, unit, flags, 400 0, 0); 401 bcopy(&key_map, keymap, sizeof(key_map)); 402 bcopy(&accent_map, accmap, sizeof(accent_map)); 403 bcopy(fkey_tab, fkeymap, 404 imin(fkeymap_size*sizeof(fkeymap[0]), sizeof(fkey_tab))); 405 kbd_set_maps(kbd, keymap, accmap, fkeymap, fkeymap_size); 406 kbd->kb_data = (void *)state; 407 408 if (probe_keyboard(state->kbdc, flags)) { /* shouldn't happen */ 409 if (flags & KB_CONF_FAIL_IF_NO_KBD) { 410 error = ENXIO; 411 goto bad; 412 } 413 } else { 414 KBD_FOUND_DEVICE(kbd); 415 } 416 atkbd_clear_state(kbd); 417 state->ks_mode = K_XLATE; 418 /* 419 * FIXME: set the initial value for lock keys in ks_state 420 * according to the BIOS data? 421 */ 422 KBD_PROBE_DONE(kbd); 423 } 424 if (!KBD_IS_INITIALIZED(kbd) && !(flags & KB_CONF_PROBE_ONLY)) { 425 kbd->kb_config = flags & ~KB_CONF_PROBE_ONLY; 426 if (KBD_HAS_DEVICE(kbd) 427 && init_keyboard(state->kbdc, &kbd->kb_type, kbd->kb_config) 428 && (kbd->kb_config & KB_CONF_FAIL_IF_NO_KBD)) { 429 kbd_unregister(kbd); 430 error = ENXIO; 431 goto bad; 432 } 433 atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state); 434 get_typematic(kbd); 435 delay[0] = kbd->kb_delay1; 436 delay[1] = kbd->kb_delay2; 437 atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay); 438 KBD_INIT_DONE(kbd); 439 } 440 if (!KBD_IS_CONFIGURED(kbd)) { 441 if (kbd_register(kbd) < 0) { 442 error = ENXIO; 443 goto bad; 444 } 445 KBD_CONFIG_DONE(kbd); 446 } 447 448 return 0; 449 bad: 450 if (needfree) { 451 if (state != NULL) 452 free(state, M_DEVBUF); 453 if (keymap != NULL) 454 free(keymap, M_DEVBUF); 455 if (accmap != NULL) 456 free(accmap, M_DEVBUF); 457 if (fkeymap != NULL) 458 free(fkeymap, M_DEVBUF); 459 if (kbd != NULL) { 460 free(kbd, M_DEVBUF); 461 *kbdp = NULL; /* insure ref doesn't leak to caller */ 462 } 463 } 464 return error; 465 } 466 467 /* finish using this keyboard */ 468 static int 469 atkbd_term(keyboard_t *kbd) 470 { 471 kbd_unregister(kbd); 472 return 0; 473 } 474 475 /* keyboard interrupt routine */ 476 static int 477 atkbd_intr(keyboard_t *kbd, void *arg) 478 { 479 atkbd_state_t *state; 480 int delay[2]; 481 int c; 482 483 if (!KBD_HAS_DEVICE(kbd)) { 484 /* 485 * The keyboard was not detected before; 486 * it must have been reconnected! 487 */ 488 state = (atkbd_state_t *)kbd->kb_data; 489 init_keyboard(state->kbdc, &kbd->kb_type, 490 kbd->kb_config); 491 KBD_FOUND_DEVICE(kbd); 492 atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state); 493 get_typematic(kbd); 494 delay[0] = kbd->kb_delay1; 495 delay[1] = kbd->kb_delay2; 496 atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay); 497 } 498 499 if (KBD_IS_ACTIVE(kbd) && KBD_IS_BUSY(kbd)) { 500 /* let the callback function to process the input */ 501 (*kbd->kb_callback.kc_func)(kbd, KBDIO_KEYINPUT, 502 kbd->kb_callback.kc_arg); 503 } else { 504 /* read and discard the input; no one is waiting for input */ 505 do { 506 c = atkbd_read_char(kbd, FALSE); 507 } while (c != NOKEY); 508 } 509 return 0; 510 } 511 512 /* test the interface to the device */ 513 static int 514 atkbd_test_if(keyboard_t *kbd) 515 { 516 int error; 517 int s; 518 519 error = 0; 520 empty_both_buffers(((atkbd_state_t *)kbd->kb_data)->kbdc, 10); 521 s = spltty(); 522 if (!test_controller(((atkbd_state_t *)kbd->kb_data)->kbdc)) 523 error = EIO; 524 else if (test_kbd_port(((atkbd_state_t *)kbd->kb_data)->kbdc) != 0) 525 error = EIO; 526 splx(s); 527 528 return error; 529 } 530 531 /* 532 * Enable the access to the device; until this function is called, 533 * the client cannot read from the keyboard. 534 */ 535 static int 536 atkbd_enable(keyboard_t *kbd) 537 { 538 int s; 539 540 s = spltty(); 541 KBD_ACTIVATE(kbd); 542 splx(s); 543 return 0; 544 } 545 546 /* disallow the access to the device */ 547 static int 548 atkbd_disable(keyboard_t *kbd) 549 { 550 int s; 551 552 s = spltty(); 553 KBD_DEACTIVATE(kbd); 554 splx(s); 555 return 0; 556 } 557 558 /* read one byte from the keyboard if it's allowed */ 559 static int 560 atkbd_read(keyboard_t *kbd, int wait) 561 { 562 int c; 563 564 if (wait) 565 c = read_kbd_data(((atkbd_state_t *)kbd->kb_data)->kbdc); 566 else 567 c = read_kbd_data_no_wait(((atkbd_state_t *)kbd->kb_data)->kbdc); 568 if (c != -1) 569 ++kbd->kb_count; 570 return (KBD_IS_ACTIVE(kbd) ? c : -1); 571 } 572 573 /* check if data is waiting */ 574 static int 575 atkbd_check(keyboard_t *kbd) 576 { 577 if (!KBD_IS_ACTIVE(kbd)) 578 return FALSE; 579 return kbdc_data_ready(((atkbd_state_t *)kbd->kb_data)->kbdc); 580 } 581 582 /* read char from the keyboard */ 583 static u_int 584 atkbd_read_char(keyboard_t *kbd, int wait) 585 { 586 atkbd_state_t *state; 587 u_int action; 588 int scancode; 589 int keycode; 590 591 state = (atkbd_state_t *)kbd->kb_data; 592 next_code: 593 /* do we have a composed char to return? */ 594 if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0)) { 595 action = state->ks_composed_char; 596 state->ks_composed_char = 0; 597 if (action > UCHAR_MAX) 598 return ERRKEY; 599 return action; 600 } 601 602 /* see if there is something in the keyboard port */ 603 if (wait) { 604 do { 605 scancode = read_kbd_data(state->kbdc); 606 } while (scancode == -1); 607 } else { 608 scancode = read_kbd_data_no_wait(state->kbdc); 609 if (scancode == -1) 610 return NOKEY; 611 } 612 ++kbd->kb_count; 613 614 #if KBDIO_DEBUG >= 10 615 printf("atkbd_read_char(): scancode:0x%x\n", scancode); 616 #endif 617 618 /* return the byte as is for the K_RAW mode */ 619 if (state->ks_mode == K_RAW) 620 return scancode; 621 622 /* translate the scan code into a keycode */ 623 keycode = scancode & 0x7F; 624 switch (state->ks_prefix) { 625 case 0x00: /* normal scancode */ 626 switch(scancode) { 627 case 0xB8: /* left alt (compose key) released */ 628 if (state->ks_flags & COMPOSE) { 629 state->ks_flags &= ~COMPOSE; 630 if (state->ks_composed_char > UCHAR_MAX) 631 state->ks_composed_char = 0; 632 } 633 break; 634 case 0x38: /* left alt (compose key) pressed */ 635 if (!(state->ks_flags & COMPOSE)) { 636 state->ks_flags |= COMPOSE; 637 state->ks_composed_char = 0; 638 } 639 break; 640 case 0xE0: 641 case 0xE1: 642 state->ks_prefix = scancode; 643 goto next_code; 644 } 645 break; 646 case 0xE0: /* 0xE0 prefix */ 647 state->ks_prefix = 0; 648 switch (keycode) { 649 case 0x1C: /* right enter key */ 650 keycode = 0x59; 651 break; 652 case 0x1D: /* right ctrl key */ 653 keycode = 0x5A; 654 break; 655 case 0x35: /* keypad divide key */ 656 keycode = 0x5B; 657 break; 658 case 0x37: /* print scrn key */ 659 keycode = 0x5C; 660 break; 661 case 0x38: /* right alt key (alt gr) */ 662 keycode = 0x5D; 663 break; 664 case 0x46: /* ctrl-pause/break on AT 101 (see below) */ 665 keycode = 0x68; 666 break; 667 case 0x47: /* grey home key */ 668 keycode = 0x5E; 669 break; 670 case 0x48: /* grey up arrow key */ 671 keycode = 0x5F; 672 break; 673 case 0x49: /* grey page up key */ 674 keycode = 0x60; 675 break; 676 case 0x4B: /* grey left arrow key */ 677 keycode = 0x61; 678 break; 679 case 0x4D: /* grey right arrow key */ 680 keycode = 0x62; 681 break; 682 case 0x4F: /* grey end key */ 683 keycode = 0x63; 684 break; 685 case 0x50: /* grey down arrow key */ 686 keycode = 0x64; 687 break; 688 case 0x51: /* grey page down key */ 689 keycode = 0x65; 690 break; 691 case 0x52: /* grey insert key */ 692 keycode = 0x66; 693 break; 694 case 0x53: /* grey delete key */ 695 keycode = 0x67; 696 break; 697 /* the following 3 are only used on the MS "Natural" keyboard */ 698 case 0x5b: /* left Window key */ 699 keycode = 0x69; 700 break; 701 case 0x5c: /* right Window key */ 702 keycode = 0x6a; 703 break; 704 case 0x5d: /* menu key */ 705 keycode = 0x6b; 706 break; 707 case 0x5e: /* power key */ 708 keycode = 0x6d; 709 break; 710 case 0x5f: /* sleep key */ 711 keycode = 0x6e; 712 break; 713 case 0x63: /* wake key */ 714 keycode = 0x6f; 715 break; 716 default: /* ignore everything else */ 717 goto next_code; 718 } 719 break; 720 case 0xE1: /* 0xE1 prefix */ 721 /* 722 * The pause/break key on the 101 keyboard produces: 723 * E1-1D-45 E1-9D-C5 724 * Ctrl-pause/break produces: 725 * E0-46 E0-C6 (See above.) 726 */ 727 state->ks_prefix = 0; 728 if (keycode == 0x1D) 729 state->ks_prefix = 0x1D; 730 goto next_code; 731 /* NOT REACHED */ 732 case 0x1D: /* pause / break */ 733 state->ks_prefix = 0; 734 if (keycode != 0x45) 735 goto next_code; 736 keycode = 0x68; 737 break; 738 } 739 740 if (kbd->kb_type == KB_84) { 741 switch (keycode) { 742 case 0x37: /* *(numpad)/print screen */ 743 if (state->ks_flags & SHIFTS) 744 keycode = 0x5c; /* print screen */ 745 break; 746 case 0x45: /* num lock/pause */ 747 if (state->ks_flags & CTLS) 748 keycode = 0x68; /* pause */ 749 break; 750 case 0x46: /* scroll lock/break */ 751 if (state->ks_flags & CTLS) 752 keycode = 0x6c; /* break */ 753 break; 754 } 755 } else if (kbd->kb_type == KB_101) { 756 switch (keycode) { 757 case 0x5c: /* print screen */ 758 if (state->ks_flags & ALTS) 759 keycode = 0x54; /* sysrq */ 760 break; 761 case 0x68: /* pause/break */ 762 if (state->ks_flags & CTLS) 763 keycode = 0x6c; /* break */ 764 break; 765 } 766 } 767 768 /* return the key code in the K_CODE mode */ 769 if (state->ks_mode == K_CODE) 770 return (keycode | (scancode & 0x80)); 771 772 /* compose a character code */ 773 if (state->ks_flags & COMPOSE) { 774 switch (keycode | (scancode & 0x80)) { 775 /* key pressed, process it */ 776 case 0x47: case 0x48: case 0x49: /* keypad 7,8,9 */ 777 state->ks_composed_char *= 10; 778 state->ks_composed_char += keycode - 0x40; 779 if (state->ks_composed_char > UCHAR_MAX) 780 return ERRKEY; 781 goto next_code; 782 case 0x4B: case 0x4C: case 0x4D: /* keypad 4,5,6 */ 783 state->ks_composed_char *= 10; 784 state->ks_composed_char += keycode - 0x47; 785 if (state->ks_composed_char > UCHAR_MAX) 786 return ERRKEY; 787 goto next_code; 788 case 0x4F: case 0x50: case 0x51: /* keypad 1,2,3 */ 789 state->ks_composed_char *= 10; 790 state->ks_composed_char += keycode - 0x4E; 791 if (state->ks_composed_char > UCHAR_MAX) 792 return ERRKEY; 793 goto next_code; 794 case 0x52: /* keypad 0 */ 795 state->ks_composed_char *= 10; 796 if (state->ks_composed_char > UCHAR_MAX) 797 return ERRKEY; 798 goto next_code; 799 800 /* key released, no interest here */ 801 case 0xC7: case 0xC8: case 0xC9: /* keypad 7,8,9 */ 802 case 0xCB: case 0xCC: case 0xCD: /* keypad 4,5,6 */ 803 case 0xCF: case 0xD0: case 0xD1: /* keypad 1,2,3 */ 804 case 0xD2: /* keypad 0 */ 805 goto next_code; 806 807 case 0x38: /* left alt key */ 808 break; 809 810 default: 811 if (state->ks_composed_char > 0) { 812 state->ks_flags &= ~COMPOSE; 813 state->ks_composed_char = 0; 814 return ERRKEY; 815 } 816 break; 817 } 818 } 819 820 /* keycode to key action */ 821 action = genkbd_keyaction(kbd, keycode, scancode & 0x80, 822 &state->ks_state, &state->ks_accents); 823 if (action == NOKEY) 824 goto next_code; 825 else 826 return action; 827 } 828 829 /* check if char is waiting */ 830 static int 831 atkbd_check_char(keyboard_t *kbd) 832 { 833 atkbd_state_t *state; 834 835 if (!KBD_IS_ACTIVE(kbd)) 836 return FALSE; 837 state = (atkbd_state_t *)kbd->kb_data; 838 if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0)) 839 return TRUE; 840 return kbdc_data_ready(state->kbdc); 841 } 842 843 /* some useful control functions */ 844 static int 845 atkbd_ioctl(keyboard_t *kbd, u_long cmd, caddr_t arg) 846 { 847 /* translate LED_XXX bits into the device specific bits */ 848 static u_char ledmap[8] = { 849 0, 4, 2, 6, 1, 5, 3, 7, 850 }; 851 atkbd_state_t *state = kbd->kb_data; 852 int error; 853 int s; 854 int i; 855 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 856 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 857 int ival; 858 #endif 859 860 s = spltty(); 861 switch (cmd) { 862 863 case KDGKBMODE: /* get keyboard mode */ 864 *(int *)arg = state->ks_mode; 865 break; 866 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 867 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 868 case _IO('K', 7): 869 ival = IOCPARM_IVAL(arg); 870 arg = (caddr_t)&ival; 871 /* FALLTHROUGH */ 872 #endif 873 case KDSKBMODE: /* set keyboard mode */ 874 switch (*(int *)arg) { 875 case K_XLATE: 876 if (state->ks_mode != K_XLATE) { 877 /* make lock key state and LED state match */ 878 state->ks_state &= ~LOCK_MASK; 879 state->ks_state |= KBD_LED_VAL(kbd); 880 } 881 /* FALLTHROUGH */ 882 case K_RAW: 883 case K_CODE: 884 if (state->ks_mode != *(int *)arg) { 885 atkbd_clear_state(kbd); 886 state->ks_mode = *(int *)arg; 887 } 888 break; 889 default: 890 splx(s); 891 return EINVAL; 892 } 893 break; 894 895 case KDGETLED: /* get keyboard LED */ 896 *(int *)arg = KBD_LED_VAL(kbd); 897 break; 898 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 899 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 900 case _IO('K', 66): 901 ival = IOCPARM_IVAL(arg); 902 arg = (caddr_t)&ival; 903 /* FALLTHROUGH */ 904 #endif 905 case KDSETLED: /* set keyboard LED */ 906 /* NOTE: lock key state in ks_state won't be changed */ 907 if (*(int *)arg & ~LOCK_MASK) { 908 splx(s); 909 return EINVAL; 910 } 911 i = *(int *)arg; 912 /* replace CAPS LED with ALTGR LED for ALTGR keyboards */ 913 if (state->ks_mode == K_XLATE && 914 kbd->kb_keymap->n_keys > ALTGR_OFFSET) { 915 if (i & ALKED) 916 i |= CLKED; 917 else 918 i &= ~CLKED; 919 } 920 if (KBD_HAS_DEVICE(kbd)) { 921 error = write_kbd(state->kbdc, KBDC_SET_LEDS, 922 ledmap[i & LED_MASK]); 923 if (error) { 924 splx(s); 925 return error; 926 } 927 } 928 KBD_LED_VAL(kbd) = *(int *)arg; 929 break; 930 931 case KDGKBSTATE: /* get lock key state */ 932 *(int *)arg = state->ks_state & LOCK_MASK; 933 break; 934 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 935 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 936 case _IO('K', 20): 937 ival = IOCPARM_IVAL(arg); 938 arg = (caddr_t)&ival; 939 /* FALLTHROUGH */ 940 #endif 941 case KDSKBSTATE: /* set lock key state */ 942 if (*(int *)arg & ~LOCK_MASK) { 943 splx(s); 944 return EINVAL; 945 } 946 state->ks_state &= ~LOCK_MASK; 947 state->ks_state |= *(int *)arg; 948 splx(s); 949 /* set LEDs and quit */ 950 return atkbd_ioctl(kbd, KDSETLED, arg); 951 952 case KDSETREPEAT: /* set keyboard repeat rate (new interface) */ 953 splx(s); 954 if (!KBD_HAS_DEVICE(kbd)) 955 return 0; 956 i = typematic(((int *)arg)[0], ((int *)arg)[1]); 957 error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, i); 958 if (error == 0) { 959 kbd->kb_delay1 = typematic_delay(i); 960 kbd->kb_delay2 = typematic_rate(i); 961 } 962 return error; 963 964 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 965 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 966 case _IO('K', 67): 967 ival = IOCPARM_IVAL(arg); 968 arg = (caddr_t)&ival; 969 /* FALLTHROUGH */ 970 #endif 971 case KDSETRAD: /* set keyboard repeat rate (old interface) */ 972 splx(s); 973 if (!KBD_HAS_DEVICE(kbd)) 974 return 0; 975 error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, *(int *)arg); 976 if (error == 0) { 977 kbd->kb_delay1 = typematic_delay(*(int *)arg); 978 kbd->kb_delay2 = typematic_rate(*(int *)arg); 979 } 980 return error; 981 982 case PIO_KEYMAP: /* set keyboard translation table */ 983 case PIO_KEYMAPENT: /* set keyboard translation table entry */ 984 case PIO_DEADKEYMAP: /* set accent key translation table */ 985 state->ks_accents = 0; 986 /* FALLTHROUGH */ 987 default: 988 splx(s); 989 return genkbd_commonioctl(kbd, cmd, arg); 990 } 991 992 splx(s); 993 return 0; 994 } 995 996 /* lock the access to the keyboard */ 997 static int 998 atkbd_lock(keyboard_t *kbd, int lock) 999 { 1000 return kbdc_lock(((atkbd_state_t *)kbd->kb_data)->kbdc, lock); 1001 } 1002 1003 /* clear the internal state of the keyboard */ 1004 static void 1005 atkbd_clear_state(keyboard_t *kbd) 1006 { 1007 atkbd_state_t *state; 1008 1009 state = (atkbd_state_t *)kbd->kb_data; 1010 state->ks_flags = 0; 1011 state->ks_polling = 0; 1012 state->ks_state &= LOCK_MASK; /* preserve locking key state */ 1013 state->ks_accents = 0; 1014 state->ks_composed_char = 0; 1015 #if 0 1016 state->ks_prefix = 0; /* XXX */ 1017 #endif 1018 } 1019 1020 /* save the internal state */ 1021 static int 1022 atkbd_get_state(keyboard_t *kbd, void *buf, size_t len) 1023 { 1024 if (len == 0) 1025 return sizeof(atkbd_state_t); 1026 if (len < sizeof(atkbd_state_t)) 1027 return -1; 1028 bcopy(kbd->kb_data, buf, sizeof(atkbd_state_t)); 1029 return 0; 1030 } 1031 1032 /* set the internal state */ 1033 static int 1034 atkbd_set_state(keyboard_t *kbd, void *buf, size_t len) 1035 { 1036 if (len < sizeof(atkbd_state_t)) 1037 return ENOMEM; 1038 if (((atkbd_state_t *)kbd->kb_data)->kbdc 1039 != ((atkbd_state_t *)buf)->kbdc) 1040 return ENOMEM; 1041 bcopy(buf, kbd->kb_data, sizeof(atkbd_state_t)); 1042 return 0; 1043 } 1044 1045 static int 1046 atkbd_poll(keyboard_t *kbd, int on) 1047 { 1048 atkbd_state_t *state; 1049 int s; 1050 1051 state = (atkbd_state_t *)kbd->kb_data; 1052 s = spltty(); 1053 if (on) 1054 ++state->ks_polling; 1055 else 1056 --state->ks_polling; 1057 splx(s); 1058 return 0; 1059 } 1060 1061 static void 1062 atkbd_shutdown_final(void *v) 1063 { 1064 #ifdef __sparc64__ 1065 keyboard_t *kbd = v; 1066 KBDC kbdc = ((atkbd_state_t *)kbd->kb_data)->kbdc; 1067 1068 /* 1069 * Turn off the translation in preparation for handing the keyboard 1070 * over to the OFW as the OBP driver doesn't use translation and 1071 * also doesn't disable it itself resulting in a broken keymap at 1072 * the boot prompt. Also disable the aux port and the interrupts as 1073 * the OBP driver doesn't use them, i.e. polls the keyboard. Not 1074 * disabling the interrupts doesn't cause real problems but the 1075 * responsiveness is a bit better when they are turned off. 1076 */ 1077 send_kbd_command(kbdc, KBDC_DISABLE_KBD); 1078 set_controller_command_byte(kbdc, 1079 KBD_AUX_CONTROL_BITS | KBD_KBD_CONTROL_BITS | KBD_TRANSLATION, 1080 KBD_DISABLE_AUX_PORT | KBD_DISABLE_KBD_INT | KBD_ENABLE_KBD_PORT); 1081 send_kbd_command(kbdc, KBDC_ENABLE_KBD); 1082 #endif 1083 } 1084 1085 /* local functions */ 1086 1087 static int 1088 get_typematic(keyboard_t *kbd) 1089 { 1090 #ifdef __i386__ 1091 /* 1092 * Only some systems allow us to retrieve the keyboard repeat 1093 * rate previously set via the BIOS... 1094 */ 1095 struct vm86frame vmf; 1096 u_int32_t p; 1097 1098 bzero(&vmf, sizeof(vmf)); 1099 vmf.vmf_ax = 0xc000; 1100 vm86_intcall(0x15, &vmf); 1101 if ((vmf.vmf_eflags & PSL_C) || vmf.vmf_ah) 1102 return ENODEV; 1103 p = BIOS_PADDRTOVADDR(((u_int32_t)vmf.vmf_es << 4) + vmf.vmf_bx); 1104 if ((readb(p + 6) & 0x40) == 0) /* int 16, function 0x09 supported? */ 1105 return ENODEV; 1106 vmf.vmf_ax = 0x0900; 1107 vm86_intcall(0x16, &vmf); 1108 if ((vmf.vmf_al & 0x08) == 0) /* int 16, function 0x0306 supported? */ 1109 return ENODEV; 1110 vmf.vmf_ax = 0x0306; 1111 vm86_intcall(0x16, &vmf); 1112 kbd->kb_delay1 = typematic_delay(vmf.vmf_bh << 5); 1113 kbd->kb_delay2 = typematic_rate(vmf.vmf_bl); 1114 return 0; 1115 #else 1116 return ENODEV; 1117 #endif /* __i386__ */ 1118 } 1119 1120 static int 1121 setup_kbd_port(KBDC kbdc, int port, int intr) 1122 { 1123 if (!set_controller_command_byte(kbdc, 1124 KBD_KBD_CONTROL_BITS, 1125 ((port) ? KBD_ENABLE_KBD_PORT : KBD_DISABLE_KBD_PORT) 1126 | ((intr) ? KBD_ENABLE_KBD_INT : KBD_DISABLE_KBD_INT))) 1127 return 1; 1128 return 0; 1129 } 1130 1131 static int 1132 get_kbd_echo(KBDC kbdc) 1133 { 1134 /* enable the keyboard port, but disable the keyboard intr. */ 1135 if (setup_kbd_port(kbdc, TRUE, FALSE)) 1136 /* CONTROLLER ERROR: there is very little we can do... */ 1137 return ENXIO; 1138 1139 /* see if something is present */ 1140 write_kbd_command(kbdc, KBDC_ECHO); 1141 if (read_kbd_data(kbdc) != KBD_ECHO) { 1142 empty_both_buffers(kbdc, 10); 1143 test_controller(kbdc); 1144 test_kbd_port(kbdc); 1145 return ENXIO; 1146 } 1147 1148 /* enable the keyboard port and intr. */ 1149 if (setup_kbd_port(kbdc, TRUE, TRUE)) { 1150 /* 1151 * CONTROLLER ERROR 1152 * This is serious; the keyboard intr is left disabled! 1153 */ 1154 return ENXIO; 1155 } 1156 1157 return 0; 1158 } 1159 1160 static int 1161 probe_keyboard(KBDC kbdc, int flags) 1162 { 1163 /* 1164 * Don't try to print anything in this function. The low-level 1165 * console may not have been initialized yet... 1166 */ 1167 int err; 1168 int c; 1169 int m; 1170 1171 if (!kbdc_lock(kbdc, TRUE)) { 1172 /* driver error? */ 1173 return ENXIO; 1174 } 1175 1176 /* temporarily block data transmission from the keyboard */ 1177 write_controller_command(kbdc, KBDC_DISABLE_KBD_PORT); 1178 1179 /* flush any noise in the buffer */ 1180 empty_both_buffers(kbdc, 100); 1181 1182 /* save the current keyboard controller command byte */ 1183 m = kbdc_get_device_mask(kbdc) & ~KBD_KBD_CONTROL_BITS; 1184 c = get_controller_command_byte(kbdc); 1185 if (c == -1) { 1186 /* CONTROLLER ERROR */ 1187 kbdc_set_device_mask(kbdc, m); 1188 kbdc_lock(kbdc, FALSE); 1189 return ENXIO; 1190 } 1191 1192 /* 1193 * The keyboard may have been screwed up by the boot block. 1194 * We may just be able to recover from error by testing the controller 1195 * and the keyboard port. The controller command byte needs to be 1196 * saved before this recovery operation, as some controllers seem 1197 * to set the command byte to particular values. 1198 */ 1199 test_controller(kbdc); 1200 if (!(flags & KB_CONF_NO_PROBE_TEST)) 1201 test_kbd_port(kbdc); 1202 1203 err = get_kbd_echo(kbdc); 1204 1205 /* 1206 * Even if the keyboard doesn't seem to be present (err != 0), 1207 * we shall enable the keyboard port and interrupt so that 1208 * the driver will be operable when the keyboard is attached 1209 * to the system later. It is NOT recommended to hot-plug 1210 * the AT keyboard, but many people do so... 1211 */ 1212 kbdc_set_device_mask(kbdc, m | KBD_KBD_CONTROL_BITS); 1213 setup_kbd_port(kbdc, TRUE, TRUE); 1214 #if 0 1215 if (err == 0) { 1216 kbdc_set_device_mask(kbdc, m | KBD_KBD_CONTROL_BITS); 1217 } else { 1218 /* try to restore the command byte as before */ 1219 set_controller_command_byte(kbdc, 0xff, c); 1220 kbdc_set_device_mask(kbdc, m); 1221 } 1222 #endif 1223 1224 kbdc_lock(kbdc, FALSE); 1225 return err; 1226 } 1227 1228 static int 1229 init_keyboard(KBDC kbdc, int *type, int flags) 1230 { 1231 int codeset; 1232 int id; 1233 int c; 1234 1235 if (!kbdc_lock(kbdc, TRUE)) { 1236 /* driver error? */ 1237 return EIO; 1238 } 1239 1240 /* temporarily block data transmission from the keyboard */ 1241 write_controller_command(kbdc, KBDC_DISABLE_KBD_PORT); 1242 1243 /* save the current controller command byte */ 1244 empty_both_buffers(kbdc, 200); 1245 c = get_controller_command_byte(kbdc); 1246 if (c == -1) { 1247 /* CONTROLLER ERROR */ 1248 kbdc_lock(kbdc, FALSE); 1249 printf("atkbd: unable to get the current command byte value.\n"); 1250 return EIO; 1251 } 1252 if (bootverbose) 1253 printf("atkbd: the current kbd controller command byte %04x\n", 1254 c); 1255 #if 0 1256 /* override the keyboard lock switch */ 1257 c |= KBD_OVERRIDE_KBD_LOCK; 1258 #endif 1259 1260 /* enable the keyboard port, but disable the keyboard intr. */ 1261 if (setup_kbd_port(kbdc, TRUE, FALSE)) { 1262 /* CONTROLLER ERROR: there is very little we can do... */ 1263 printf("atkbd: unable to set the command byte.\n"); 1264 kbdc_lock(kbdc, FALSE); 1265 return EIO; 1266 } 1267 1268 /* 1269 * Check if we have an XT keyboard before we attempt to reset it. 1270 * The procedure assumes that the keyboard and the controller have 1271 * been set up properly by BIOS and have not been messed up 1272 * during the boot process. 1273 */ 1274 codeset = -1; 1275 if (flags & KB_CONF_ALT_SCANCODESET) 1276 /* the user says there is a XT keyboard */ 1277 codeset = 1; 1278 #ifdef KBD_DETECT_XT_KEYBOARD 1279 else if ((c & KBD_TRANSLATION) == 0) { 1280 /* SET_SCANCODE_SET is not always supported; ignore error */ 1281 if (send_kbd_command_and_data(kbdc, KBDC_SET_SCANCODE_SET, 0) 1282 == KBD_ACK) 1283 codeset = read_kbd_data(kbdc); 1284 } 1285 if (bootverbose) 1286 printf("atkbd: scancode set %d\n", codeset); 1287 #endif /* KBD_DETECT_XT_KEYBOARD */ 1288 1289 *type = KB_OTHER; 1290 id = get_kbd_id(kbdc); 1291 switch(id) { 1292 case 0x41ab: /* 101/102/... Enhanced */ 1293 case 0x83ab: /* ditto */ 1294 case 0x54ab: /* SpaceSaver */ 1295 case 0x84ab: /* ditto */ 1296 #if 0 1297 case 0x90ab: /* 'G' */ 1298 case 0x91ab: /* 'P' */ 1299 case 0x92ab: /* 'A' */ 1300 #endif 1301 *type = KB_101; 1302 break; 1303 case -1: /* AT 84 keyboard doesn't return ID */ 1304 *type = KB_84; 1305 break; 1306 default: 1307 break; 1308 } 1309 if (bootverbose) 1310 printf("atkbd: keyboard ID 0x%x (%d)\n", id, *type); 1311 1312 /* reset keyboard hardware */ 1313 if (!(flags & KB_CONF_NO_RESET) && !reset_kbd(kbdc)) { 1314 /* 1315 * KEYBOARD ERROR 1316 * Keyboard reset may fail either because the keyboard 1317 * doen't exist, or because the keyboard doesn't pass 1318 * the self-test, or the keyboard controller on the 1319 * motherboard and the keyboard somehow fail to shake hands. 1320 * It is just possible, particularly in the last case, 1321 * that the keyboard controller may be left in a hung state. 1322 * test_controller() and test_kbd_port() appear to bring 1323 * the keyboard controller back (I don't know why and how, 1324 * though.) 1325 */ 1326 empty_both_buffers(kbdc, 10); 1327 test_controller(kbdc); 1328 test_kbd_port(kbdc); 1329 /* 1330 * We could disable the keyboard port and interrupt... but, 1331 * the keyboard may still exist (see above). 1332 */ 1333 set_controller_command_byte(kbdc, 0xff, c); 1334 kbdc_lock(kbdc, FALSE); 1335 if (bootverbose) 1336 printf("atkbd: failed to reset the keyboard.\n"); 1337 return EIO; 1338 } 1339 1340 /* 1341 * Allow us to set the XT_KEYBD flag so that keyboards 1342 * such as those on the IBM ThinkPad laptop computers can be used 1343 * with the standard console driver. 1344 */ 1345 if (codeset == 1) { 1346 if (send_kbd_command_and_data(kbdc, 1347 KBDC_SET_SCANCODE_SET, codeset) == KBD_ACK) { 1348 /* XT kbd doesn't need scan code translation */ 1349 c &= ~KBD_TRANSLATION; 1350 } else { 1351 /* 1352 * KEYBOARD ERROR 1353 * The XT kbd isn't usable unless the proper scan 1354 * code set is selected. 1355 */ 1356 set_controller_command_byte(kbdc, 0xff, c); 1357 kbdc_lock(kbdc, FALSE); 1358 printf("atkbd: unable to set the XT keyboard mode.\n"); 1359 return EIO; 1360 } 1361 } 1362 1363 #if defined(__sparc64__) 1364 if (send_kbd_command_and_data( 1365 kbdc, KBDC_SET_SCANCODE_SET, 2) != KBD_ACK) { 1366 printf("atkbd: can't set translation.\n"); 1367 } 1368 c |= KBD_TRANSLATION; 1369 #endif 1370 1371 /* enable the keyboard port and intr. */ 1372 if (!set_controller_command_byte(kbdc, 1373 KBD_KBD_CONTROL_BITS | KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK, 1374 (c & (KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK)) 1375 | KBD_ENABLE_KBD_PORT | KBD_ENABLE_KBD_INT)) { 1376 /* 1377 * CONTROLLER ERROR 1378 * This is serious; we are left with the disabled 1379 * keyboard intr. 1380 */ 1381 set_controller_command_byte(kbdc, 0xff, c); 1382 kbdc_lock(kbdc, FALSE); 1383 printf("atkbd: unable to enable the keyboard port and intr.\n"); 1384 return EIO; 1385 } 1386 1387 kbdc_lock(kbdc, FALSE); 1388 return 0; 1389 } 1390 1391 static int 1392 write_kbd(KBDC kbdc, int command, int data) 1393 { 1394 int s; 1395 1396 /* prevent the timeout routine from polling the keyboard */ 1397 if (!kbdc_lock(kbdc, TRUE)) 1398 return EBUSY; 1399 1400 /* disable the keyboard and mouse interrupt */ 1401 s = spltty(); 1402 #if 0 1403 c = get_controller_command_byte(kbdc); 1404 if ((c == -1) 1405 || !set_controller_command_byte(kbdc, 1406 kbdc_get_device_mask(kbdc), 1407 KBD_DISABLE_KBD_PORT | KBD_DISABLE_KBD_INT 1408 | KBD_DISABLE_AUX_PORT | KBD_DISABLE_AUX_INT)) { 1409 /* CONTROLLER ERROR */ 1410 kbdc_lock(kbdc, FALSE); 1411 splx(s); 1412 return EIO; 1413 } 1414 /* 1415 * Now that the keyboard controller is told not to generate 1416 * the keyboard and mouse interrupts, call `splx()' to allow 1417 * the other tty interrupts. The clock interrupt may also occur, 1418 * but the timeout routine (`scrn_timer()') will be blocked 1419 * by the lock flag set via `kbdc_lock()' 1420 */ 1421 splx(s); 1422 #endif 1423 1424 if (send_kbd_command_and_data(kbdc, command, data) != KBD_ACK) 1425 send_kbd_command(kbdc, KBDC_ENABLE_KBD); 1426 1427 #if 0 1428 /* restore the interrupts */ 1429 if (!set_controller_command_byte(kbdc, 1430 kbdc_get_device_mask(kbdc), 1431 c & (KBD_KBD_CONTROL_BITS | KBD_AUX_CONTROL_BITS))) { 1432 /* CONTROLLER ERROR */ 1433 } 1434 #else 1435 splx(s); 1436 #endif 1437 kbdc_lock(kbdc, FALSE); 1438 1439 return 0; 1440 } 1441 1442 static int 1443 get_kbd_id(KBDC kbdc) 1444 { 1445 int id1, id2; 1446 1447 empty_both_buffers(kbdc, 10); 1448 id1 = id2 = -1; 1449 if (send_kbd_command(kbdc, KBDC_SEND_DEV_ID) != KBD_ACK) 1450 return -1; 1451 1452 DELAY(10000); /* 10 msec delay */ 1453 id1 = read_kbd_data(kbdc); 1454 if (id1 != -1) 1455 id2 = read_kbd_data(kbdc); 1456 1457 if ((id1 == -1) || (id2 == -1)) { 1458 empty_both_buffers(kbdc, 10); 1459 test_controller(kbdc); 1460 test_kbd_port(kbdc); 1461 return -1; 1462 } 1463 return ((id2 << 8) | id1); 1464 } 1465 1466 static int delays[] = { 250, 500, 750, 1000 }; 1467 static int rates[] = { 34, 38, 42, 46, 50, 55, 59, 63, 1468 68, 76, 84, 92, 100, 110, 118, 126, 1469 136, 152, 168, 184, 200, 220, 236, 252, 1470 272, 304, 336, 368, 400, 440, 472, 504 }; 1471 1472 static int 1473 typematic_delay(int i) 1474 { 1475 return delays[(i >> 5) & 3]; 1476 } 1477 1478 static int 1479 typematic_rate(int i) 1480 { 1481 return rates[i & 0x1f]; 1482 } 1483 1484 static int 1485 typematic(int delay, int rate) 1486 { 1487 int value; 1488 int i; 1489 1490 for (i = sizeof(delays)/sizeof(delays[0]) - 1; i > 0; --i) { 1491 if (delay >= delays[i]) 1492 break; 1493 } 1494 value = i << 5; 1495 for (i = sizeof(rates)/sizeof(rates[0]) - 1; i > 0; --i) { 1496 if (rate >= rates[i]) 1497 break; 1498 } 1499 value |= i; 1500 return value; 1501 }
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