Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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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: releng/10.4/sys/dev/atkbdc/atkbd.c 283219 2015-05-21 10:40:18Z royger $"); 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 #include <sys/kbio.h> 48 #include <dev/kbd/kbdreg.h> 49 #include <dev/atkbdc/atkbdreg.h> 50 #include <dev/atkbdc/atkbdcreg.h> 51 52 static timeout_t atkbd_timeout; 53 static void atkbd_shutdown_final(void *v); 54 55 #define DEFAULT_DELAY 0x1 /* 500ms */ 56 #define DEFAULT_RATE 0x10 /* 14Hz */ 57 58 int 59 atkbd_probe_unit(device_t dev, int irq, int flags) 60 { 61 keyboard_switch_t *sw; 62 int args[2]; 63 int error; 64 65 sw = kbd_get_switch(ATKBD_DRIVER_NAME); 66 if (sw == NULL) 67 return ENXIO; 68 69 args[0] = device_get_unit(device_get_parent(dev)); 70 args[1] = irq; 71 error = (*sw->probe)(device_get_unit(dev), args, flags); 72 if (error) 73 return error; 74 return 0; 75 } 76 77 int 78 atkbd_attach_unit(device_t dev, keyboard_t **kbd, int irq, int flags) 79 { 80 keyboard_switch_t *sw; 81 int args[2]; 82 int error; 83 int unit; 84 85 sw = kbd_get_switch(ATKBD_DRIVER_NAME); 86 if (sw == NULL) 87 return ENXIO; 88 89 /* reset, initialize and enable the device */ 90 unit = device_get_unit(dev); 91 args[0] = device_get_unit(device_get_parent(dev)); 92 args[1] = irq; 93 *kbd = NULL; 94 error = (*sw->probe)(unit, args, flags); 95 if (error) 96 return error; 97 error = (*sw->init)(unit, kbd, args, flags); 98 if (error) 99 return error; 100 (*sw->enable)(*kbd); 101 102 #ifdef KBD_INSTALL_CDEV 103 /* attach a virtual keyboard cdev */ 104 error = kbd_attach(*kbd); 105 if (error) 106 return error; 107 #endif 108 109 /* 110 * This is a kludge to compensate for lost keyboard interrupts. 111 * A similar code used to be in syscons. See below. XXX 112 */ 113 atkbd_timeout(*kbd); 114 115 if (bootverbose) 116 (*sw->diag)(*kbd, bootverbose); 117 118 EVENTHANDLER_REGISTER(shutdown_final, atkbd_shutdown_final, *kbd, 119 SHUTDOWN_PRI_DEFAULT); 120 121 return 0; 122 } 123 124 static void 125 atkbd_timeout(void *arg) 126 { 127 keyboard_t *kbd; 128 int s; 129 130 /* 131 * The original text of the following comments are extracted 132 * from syscons.c (1.287) 133 * 134 * With release 2.1 of the Xaccel server, the keyboard is left 135 * hanging pretty often. Apparently an interrupt from the 136 * keyboard is lost, and I don't know why (yet). 137 * This ugly hack calls the low-level interrupt routine if input 138 * is ready for the keyboard and conveniently hides the problem. XXX 139 * 140 * Try removing anything stuck in the keyboard controller; whether 141 * it's a keyboard scan code or mouse data. The low-level 142 * interrupt routine doesn't read the mouse data directly, 143 * but the keyboard controller driver will, as a side effect. 144 */ 145 /* 146 * And here is bde's original comment about this: 147 * 148 * This is necessary to handle edge triggered interrupts - if we 149 * returned when our IRQ is high due to unserviced input, then there 150 * would be no more keyboard IRQs until the keyboard is reset by 151 * external powers. 152 * 153 * The keyboard apparently unwedges the irq in most cases. 154 */ 155 s = spltty(); 156 kbd = (keyboard_t *)arg; 157 if (kbdd_lock(kbd, TRUE)) { 158 /* 159 * We have seen the lock flag is not set. Let's reset 160 * the flag early, otherwise the LED update routine fails 161 * which may want the lock during the interrupt routine. 162 */ 163 kbdd_lock(kbd, FALSE); 164 if (kbdd_check_char(kbd)) 165 kbdd_intr(kbd, NULL); 166 } 167 splx(s); 168 timeout(atkbd_timeout, arg, hz/10); 169 } 170 171 /* LOW-LEVEL */ 172 173 #define ATKBD_DEFAULT 0 174 175 typedef struct atkbd_state { 176 KBDC kbdc; /* keyboard controller */ 177 int ks_mode; /* input mode (K_XLATE,K_RAW,K_CODE) */ 178 int ks_flags; /* flags */ 179 #define COMPOSE (1 << 0) 180 int ks_polling; 181 int ks_state; /* shift/lock key state */ 182 int ks_accents; /* accent key index (> 0) */ 183 u_int ks_composed_char; /* composed char code (> 0) */ 184 u_char ks_prefix; /* AT scan code prefix */ 185 } atkbd_state_t; 186 187 /* keyboard driver declaration */ 188 static int atkbd_configure(int flags); 189 static kbd_probe_t atkbd_probe; 190 static kbd_init_t atkbd_init; 191 static kbd_term_t atkbd_term; 192 static kbd_intr_t atkbd_intr; 193 static kbd_test_if_t atkbd_test_if; 194 static kbd_enable_t atkbd_enable; 195 static kbd_disable_t atkbd_disable; 196 static kbd_read_t atkbd_read; 197 static kbd_check_t atkbd_check; 198 static kbd_read_char_t atkbd_read_char; 199 static kbd_check_char_t atkbd_check_char; 200 static kbd_ioctl_t atkbd_ioctl; 201 static kbd_lock_t atkbd_lock; 202 static kbd_clear_state_t atkbd_clear_state; 203 static kbd_get_state_t atkbd_get_state; 204 static kbd_set_state_t atkbd_set_state; 205 static kbd_poll_mode_t atkbd_poll; 206 207 static keyboard_switch_t atkbdsw = { 208 atkbd_probe, 209 atkbd_init, 210 atkbd_term, 211 atkbd_intr, 212 atkbd_test_if, 213 atkbd_enable, 214 atkbd_disable, 215 atkbd_read, 216 atkbd_check, 217 atkbd_read_char, 218 atkbd_check_char, 219 atkbd_ioctl, 220 atkbd_lock, 221 atkbd_clear_state, 222 atkbd_get_state, 223 atkbd_set_state, 224 genkbd_get_fkeystr, 225 atkbd_poll, 226 genkbd_diag, 227 }; 228 229 KEYBOARD_DRIVER(atkbd, atkbdsw, atkbd_configure); 230 231 /* local functions */ 232 static int set_typematic(keyboard_t *kbd); 233 static int setup_kbd_port(KBDC kbdc, int port, int intr); 234 static int get_kbd_echo(KBDC kbdc); 235 static int probe_keyboard(KBDC kbdc, int flags); 236 static int init_keyboard(KBDC kbdc, int *type, int flags); 237 static int write_kbd(KBDC kbdc, int command, int data); 238 static int get_kbd_id(KBDC kbdc); 239 static int typematic(int delay, int rate); 240 static int typematic_delay(int delay); 241 static int typematic_rate(int rate); 242 243 /* local variables */ 244 245 /* the initial key map, accent map and fkey strings */ 246 #ifdef ATKBD_DFLT_KEYMAP 247 #define KBD_DFLT_KEYMAP 248 #include "atkbdmap.h" 249 #endif 250 #include <dev/kbd/kbdtables.h> 251 252 /* structures for the default keyboard */ 253 static keyboard_t default_kbd; 254 static atkbd_state_t default_kbd_state; 255 static keymap_t default_keymap; 256 static accentmap_t default_accentmap; 257 static fkeytab_t default_fkeytab[NUM_FKEYS]; 258 259 /* 260 * The back door to the keyboard driver! 261 * This function is called by the console driver, via the kbdio module, 262 * to tickle keyboard drivers when the low-level console is being initialized. 263 * Almost nothing in the kernel has been initialied yet. Try to probe 264 * keyboards if possible. 265 * NOTE: because of the way the low-level console is initialized, this routine 266 * may be called more than once!! 267 */ 268 static int 269 atkbd_configure(int flags) 270 { 271 keyboard_t *kbd; 272 int arg[2]; 273 int i; 274 275 /* 276 * Probe the keyboard controller, if not present or if the driver 277 * is disabled, unregister the keyboard if any. 278 */ 279 if (atkbdc_configure() != 0 || 280 resource_disabled("atkbd", ATKBD_DEFAULT)) { 281 i = kbd_find_keyboard(ATKBD_DRIVER_NAME, ATKBD_DEFAULT); 282 if (i >= 0) { 283 kbd = kbd_get_keyboard(i); 284 kbd_unregister(kbd); 285 kbd->kb_flags &= ~KB_REGISTERED; 286 } 287 return 0; 288 } 289 290 /* XXX: a kludge to obtain the device configuration flags */ 291 if (resource_int_value("atkbd", ATKBD_DEFAULT, "flags", &i) == 0) 292 flags |= i; 293 294 /* probe the default keyboard */ 295 arg[0] = -1; 296 arg[1] = -1; 297 kbd = NULL; 298 if (atkbd_probe(ATKBD_DEFAULT, arg, flags)) 299 return 0; 300 if (atkbd_init(ATKBD_DEFAULT, &kbd, arg, flags)) 301 return 0; 302 303 /* return the number of found keyboards */ 304 return 1; 305 } 306 307 /* low-level functions */ 308 309 /* detect a keyboard */ 310 static int 311 atkbd_probe(int unit, void *arg, int flags) 312 { 313 KBDC kbdc; 314 int *data = (int *)arg; /* data[0]: controller, data[1]: irq */ 315 316 /* XXX */ 317 if (unit == ATKBD_DEFAULT) { 318 if (KBD_IS_PROBED(&default_kbd)) 319 return 0; 320 } 321 322 kbdc = atkbdc_open(data[0]); 323 if (kbdc == NULL) 324 return ENXIO; 325 if (probe_keyboard(kbdc, flags)) { 326 if (flags & KB_CONF_FAIL_IF_NO_KBD) 327 return ENXIO; 328 } 329 return 0; 330 } 331 332 /* reset and initialize the device */ 333 static int 334 atkbd_init(int unit, keyboard_t **kbdp, void *arg, int flags) 335 { 336 keyboard_t *kbd; 337 atkbd_state_t *state; 338 keymap_t *keymap; 339 accentmap_t *accmap; 340 fkeytab_t *fkeymap; 341 int fkeymap_size; 342 int delay[2]; 343 int *data = (int *)arg; /* data[0]: controller, data[1]: irq */ 344 int error, needfree; 345 346 /* XXX */ 347 if (unit == ATKBD_DEFAULT) { 348 *kbdp = kbd = &default_kbd; 349 if (KBD_IS_INITIALIZED(kbd) && KBD_IS_CONFIGURED(kbd)) 350 return 0; 351 state = &default_kbd_state; 352 keymap = &default_keymap; 353 accmap = &default_accentmap; 354 fkeymap = default_fkeytab; 355 fkeymap_size = 356 sizeof(default_fkeytab)/sizeof(default_fkeytab[0]); 357 needfree = 0; 358 } else if (*kbdp == NULL) { 359 *kbdp = kbd = malloc(sizeof(*kbd), M_DEVBUF, M_NOWAIT | M_ZERO); 360 state = malloc(sizeof(*state), M_DEVBUF, M_NOWAIT | M_ZERO); 361 /* NB: these will always be initialized 'cuz !KBD_IS_PROBED */ 362 keymap = malloc(sizeof(key_map), M_DEVBUF, M_NOWAIT); 363 accmap = malloc(sizeof(accent_map), M_DEVBUF, M_NOWAIT); 364 fkeymap = malloc(sizeof(fkey_tab), M_DEVBUF, M_NOWAIT); 365 fkeymap_size = sizeof(fkey_tab)/sizeof(fkey_tab[0]); 366 needfree = 1; 367 if ((kbd == NULL) || (state == NULL) || (keymap == NULL) 368 || (accmap == NULL) || (fkeymap == NULL)) { 369 error = ENOMEM; 370 goto bad; 371 } 372 } else if (KBD_IS_INITIALIZED(*kbdp) && KBD_IS_CONFIGURED(*kbdp)) { 373 return 0; 374 } else { 375 kbd = *kbdp; 376 state = (atkbd_state_t *)kbd->kb_data; 377 bzero(state, sizeof(*state)); 378 keymap = kbd->kb_keymap; 379 accmap = kbd->kb_accentmap; 380 fkeymap = kbd->kb_fkeytab; 381 fkeymap_size = kbd->kb_fkeytab_size; 382 needfree = 0; 383 } 384 385 if (!KBD_IS_PROBED(kbd)) { 386 state->kbdc = atkbdc_open(data[0]); 387 if (state->kbdc == NULL) { 388 error = ENXIO; 389 goto bad; 390 } 391 kbd_init_struct(kbd, ATKBD_DRIVER_NAME, KB_OTHER, unit, flags, 392 0, 0); 393 bcopy(&key_map, keymap, sizeof(key_map)); 394 bcopy(&accent_map, accmap, sizeof(accent_map)); 395 bcopy(fkey_tab, fkeymap, 396 imin(fkeymap_size * sizeof(fkeymap[0]), sizeof(fkey_tab))); 397 kbd_set_maps(kbd, keymap, accmap, fkeymap, fkeymap_size); 398 kbd->kb_data = (void *)state; 399 400 if (probe_keyboard(state->kbdc, flags)) { /* shouldn't happen */ 401 if (flags & KB_CONF_FAIL_IF_NO_KBD) { 402 error = ENXIO; 403 goto bad; 404 } 405 } else { 406 KBD_FOUND_DEVICE(kbd); 407 } 408 atkbd_clear_state(kbd); 409 state->ks_mode = K_XLATE; 410 /* 411 * FIXME: set the initial value for lock keys in ks_state 412 * according to the BIOS data? 413 */ 414 KBD_PROBE_DONE(kbd); 415 } 416 if (!KBD_IS_INITIALIZED(kbd) && !(flags & KB_CONF_PROBE_ONLY)) { 417 kbd->kb_config = flags & ~KB_CONF_PROBE_ONLY; 418 if (KBD_HAS_DEVICE(kbd) 419 && init_keyboard(state->kbdc, &kbd->kb_type, kbd->kb_config) 420 && (kbd->kb_config & KB_CONF_FAIL_IF_NO_KBD)) { 421 kbd_unregister(kbd); 422 error = ENXIO; 423 goto bad; 424 } 425 atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state); 426 set_typematic(kbd); 427 delay[0] = kbd->kb_delay1; 428 delay[1] = kbd->kb_delay2; 429 atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay); 430 KBD_INIT_DONE(kbd); 431 } 432 if (!KBD_IS_CONFIGURED(kbd)) { 433 if (kbd_register(kbd) < 0) { 434 error = ENXIO; 435 goto bad; 436 } 437 KBD_CONFIG_DONE(kbd); 438 } 439 440 return 0; 441 bad: 442 if (needfree) { 443 if (state != NULL) 444 free(state, M_DEVBUF); 445 if (keymap != NULL) 446 free(keymap, M_DEVBUF); 447 if (accmap != NULL) 448 free(accmap, M_DEVBUF); 449 if (fkeymap != NULL) 450 free(fkeymap, M_DEVBUF); 451 if (kbd != NULL) { 452 free(kbd, M_DEVBUF); 453 *kbdp = NULL; /* insure ref doesn't leak to caller */ 454 } 455 } 456 return error; 457 } 458 459 /* finish using this keyboard */ 460 static int 461 atkbd_term(keyboard_t *kbd) 462 { 463 kbd_unregister(kbd); 464 return 0; 465 } 466 467 /* keyboard interrupt routine */ 468 static int 469 atkbd_intr(keyboard_t *kbd, void *arg) 470 { 471 atkbd_state_t *state = (atkbd_state_t *)kbd->kb_data; 472 int delay[2]; 473 int c; 474 475 if (!KBD_HAS_DEVICE(kbd)) { 476 /* 477 * The keyboard was not detected before; 478 * it must have been reconnected! 479 */ 480 init_keyboard(state->kbdc, &kbd->kb_type, kbd->kb_config); 481 KBD_FOUND_DEVICE(kbd); 482 atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state); 483 set_typematic(kbd); 484 delay[0] = kbd->kb_delay1; 485 delay[1] = kbd->kb_delay2; 486 atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay); 487 } 488 489 if (state->ks_polling) 490 return 0; 491 492 if (KBD_IS_ACTIVE(kbd) && KBD_IS_BUSY(kbd)) { 493 /* let the callback function to process the input */ 494 (*kbd->kb_callback.kc_func)(kbd, KBDIO_KEYINPUT, 495 kbd->kb_callback.kc_arg); 496 } else { 497 /* read and discard the input; no one is waiting for input */ 498 do { 499 c = atkbd_read_char(kbd, FALSE); 500 } while (c != NOKEY); 501 } 502 return 0; 503 } 504 505 /* test the interface to the device */ 506 static int 507 atkbd_test_if(keyboard_t *kbd) 508 { 509 int error; 510 int s; 511 512 error = 0; 513 empty_both_buffers(((atkbd_state_t *)kbd->kb_data)->kbdc, 10); 514 s = spltty(); 515 if (!test_controller(((atkbd_state_t *)kbd->kb_data)->kbdc)) 516 error = EIO; 517 else if (test_kbd_port(((atkbd_state_t *)kbd->kb_data)->kbdc) != 0) 518 error = EIO; 519 splx(s); 520 521 return error; 522 } 523 524 /* 525 * Enable the access to the device; until this function is called, 526 * the client cannot read from the keyboard. 527 */ 528 static int 529 atkbd_enable(keyboard_t *kbd) 530 { 531 int s; 532 533 s = spltty(); 534 KBD_ACTIVATE(kbd); 535 splx(s); 536 return 0; 537 } 538 539 /* disallow the access to the device */ 540 static int 541 atkbd_disable(keyboard_t *kbd) 542 { 543 int s; 544 545 s = spltty(); 546 KBD_DEACTIVATE(kbd); 547 splx(s); 548 return 0; 549 } 550 551 /* read one byte from the keyboard if it's allowed */ 552 static int 553 atkbd_read(keyboard_t *kbd, int wait) 554 { 555 int c; 556 557 if (wait) 558 c = read_kbd_data(((atkbd_state_t *)kbd->kb_data)->kbdc); 559 else 560 c = read_kbd_data_no_wait(((atkbd_state_t *)kbd->kb_data)->kbdc); 561 if (c != -1) 562 ++kbd->kb_count; 563 return (KBD_IS_ACTIVE(kbd) ? c : -1); 564 } 565 566 /* check if data is waiting */ 567 static int 568 atkbd_check(keyboard_t *kbd) 569 { 570 if (!KBD_IS_ACTIVE(kbd)) 571 return FALSE; 572 return kbdc_data_ready(((atkbd_state_t *)kbd->kb_data)->kbdc); 573 } 574 575 /* read char from the keyboard */ 576 static u_int 577 atkbd_read_char(keyboard_t *kbd, int wait) 578 { 579 atkbd_state_t *state; 580 u_int action; 581 int scancode; 582 int keycode; 583 584 state = (atkbd_state_t *)kbd->kb_data; 585 next_code: 586 /* do we have a composed char to return? */ 587 if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0)) { 588 action = state->ks_composed_char; 589 state->ks_composed_char = 0; 590 if (action > UCHAR_MAX) 591 return ERRKEY; 592 return action; 593 } 594 595 /* see if there is something in the keyboard port */ 596 if (wait) { 597 do { 598 scancode = read_kbd_data(state->kbdc); 599 } while (scancode == -1); 600 } else { 601 scancode = read_kbd_data_no_wait(state->kbdc); 602 if (scancode == -1) 603 return NOKEY; 604 } 605 ++kbd->kb_count; 606 607 #if KBDIO_DEBUG >= 10 608 printf("atkbd_read_char(): scancode:0x%x\n", scancode); 609 #endif 610 611 /* return the byte as is for the K_RAW mode */ 612 if (state->ks_mode == K_RAW) 613 return scancode; 614 615 /* translate the scan code into a keycode */ 616 keycode = scancode & 0x7F; 617 switch (state->ks_prefix) { 618 case 0x00: /* normal scancode */ 619 switch(scancode) { 620 case 0xB8: /* left alt (compose key) released */ 621 if (state->ks_flags & COMPOSE) { 622 state->ks_flags &= ~COMPOSE; 623 if (state->ks_composed_char > UCHAR_MAX) 624 state->ks_composed_char = 0; 625 } 626 break; 627 case 0x38: /* left alt (compose key) pressed */ 628 if (!(state->ks_flags & COMPOSE)) { 629 state->ks_flags |= COMPOSE; 630 state->ks_composed_char = 0; 631 } 632 break; 633 case 0xE0: 634 case 0xE1: 635 state->ks_prefix = scancode; 636 goto next_code; 637 } 638 break; 639 case 0xE0: /* 0xE0 prefix */ 640 state->ks_prefix = 0; 641 switch (keycode) { 642 case 0x1C: /* right enter key */ 643 keycode = 0x59; 644 break; 645 case 0x1D: /* right ctrl key */ 646 keycode = 0x5A; 647 break; 648 case 0x35: /* keypad divide key */ 649 keycode = 0x5B; 650 break; 651 case 0x37: /* print scrn key */ 652 keycode = 0x5C; 653 break; 654 case 0x38: /* right alt key (alt gr) */ 655 keycode = 0x5D; 656 break; 657 case 0x46: /* ctrl-pause/break on AT 101 (see below) */ 658 keycode = 0x68; 659 break; 660 case 0x47: /* grey home key */ 661 keycode = 0x5E; 662 break; 663 case 0x48: /* grey up arrow key */ 664 keycode = 0x5F; 665 break; 666 case 0x49: /* grey page up key */ 667 keycode = 0x60; 668 break; 669 case 0x4B: /* grey left arrow key */ 670 keycode = 0x61; 671 break; 672 case 0x4D: /* grey right arrow key */ 673 keycode = 0x62; 674 break; 675 case 0x4F: /* grey end key */ 676 keycode = 0x63; 677 break; 678 case 0x50: /* grey down arrow key */ 679 keycode = 0x64; 680 break; 681 case 0x51: /* grey page down key */ 682 keycode = 0x65; 683 break; 684 case 0x52: /* grey insert key */ 685 keycode = 0x66; 686 break; 687 case 0x53: /* grey delete key */ 688 keycode = 0x67; 689 break; 690 /* the following 3 are only used on the MS "Natural" keyboard */ 691 case 0x5b: /* left Window key */ 692 keycode = 0x69; 693 break; 694 case 0x5c: /* right Window key */ 695 keycode = 0x6a; 696 break; 697 case 0x5d: /* menu key */ 698 keycode = 0x6b; 699 break; 700 case 0x5e: /* power key */ 701 keycode = 0x6d; 702 break; 703 case 0x5f: /* sleep key */ 704 keycode = 0x6e; 705 break; 706 case 0x63: /* wake key */ 707 keycode = 0x6f; 708 break; 709 default: /* ignore everything else */ 710 goto next_code; 711 } 712 break; 713 case 0xE1: /* 0xE1 prefix */ 714 /* 715 * The pause/break key on the 101 keyboard produces: 716 * E1-1D-45 E1-9D-C5 717 * Ctrl-pause/break produces: 718 * E0-46 E0-C6 (See above.) 719 */ 720 state->ks_prefix = 0; 721 if (keycode == 0x1D) 722 state->ks_prefix = 0x1D; 723 goto next_code; 724 /* NOT REACHED */ 725 case 0x1D: /* pause / break */ 726 state->ks_prefix = 0; 727 if (keycode != 0x45) 728 goto next_code; 729 keycode = 0x68; 730 break; 731 } 732 733 if (kbd->kb_type == KB_84) { 734 switch (keycode) { 735 case 0x37: /* *(numpad)/print screen */ 736 if (state->ks_flags & SHIFTS) 737 keycode = 0x5c; /* print screen */ 738 break; 739 case 0x45: /* num lock/pause */ 740 if (state->ks_flags & CTLS) 741 keycode = 0x68; /* pause */ 742 break; 743 case 0x46: /* scroll lock/break */ 744 if (state->ks_flags & CTLS) 745 keycode = 0x6c; /* break */ 746 break; 747 } 748 } else if (kbd->kb_type == KB_101) { 749 switch (keycode) { 750 case 0x5c: /* print screen */ 751 if (state->ks_flags & ALTS) 752 keycode = 0x54; /* sysrq */ 753 break; 754 case 0x68: /* pause/break */ 755 if (state->ks_flags & CTLS) 756 keycode = 0x6c; /* break */ 757 break; 758 } 759 } 760 761 /* return the key code in the K_CODE mode */ 762 if (state->ks_mode == K_CODE) 763 return (keycode | (scancode & 0x80)); 764 765 /* compose a character code */ 766 if (state->ks_flags & COMPOSE) { 767 switch (keycode | (scancode & 0x80)) { 768 /* key pressed, process it */ 769 case 0x47: case 0x48: case 0x49: /* keypad 7,8,9 */ 770 state->ks_composed_char *= 10; 771 state->ks_composed_char += keycode - 0x40; 772 if (state->ks_composed_char > UCHAR_MAX) 773 return ERRKEY; 774 goto next_code; 775 case 0x4B: case 0x4C: case 0x4D: /* keypad 4,5,6 */ 776 state->ks_composed_char *= 10; 777 state->ks_composed_char += keycode - 0x47; 778 if (state->ks_composed_char > UCHAR_MAX) 779 return ERRKEY; 780 goto next_code; 781 case 0x4F: case 0x50: case 0x51: /* keypad 1,2,3 */ 782 state->ks_composed_char *= 10; 783 state->ks_composed_char += keycode - 0x4E; 784 if (state->ks_composed_char > UCHAR_MAX) 785 return ERRKEY; 786 goto next_code; 787 case 0x52: /* keypad 0 */ 788 state->ks_composed_char *= 10; 789 if (state->ks_composed_char > UCHAR_MAX) 790 return ERRKEY; 791 goto next_code; 792 793 /* key released, no interest here */ 794 case 0xC7: case 0xC8: case 0xC9: /* keypad 7,8,9 */ 795 case 0xCB: case 0xCC: case 0xCD: /* keypad 4,5,6 */ 796 case 0xCF: case 0xD0: case 0xD1: /* keypad 1,2,3 */ 797 case 0xD2: /* keypad 0 */ 798 goto next_code; 799 800 case 0x38: /* left alt key */ 801 break; 802 803 default: 804 if (state->ks_composed_char > 0) { 805 state->ks_flags &= ~COMPOSE; 806 state->ks_composed_char = 0; 807 return ERRKEY; 808 } 809 break; 810 } 811 } 812 813 /* keycode to key action */ 814 action = genkbd_keyaction(kbd, keycode, scancode & 0x80, 815 &state->ks_state, &state->ks_accents); 816 if (action == NOKEY) 817 goto next_code; 818 else 819 return action; 820 } 821 822 /* check if char is waiting */ 823 static int 824 atkbd_check_char(keyboard_t *kbd) 825 { 826 atkbd_state_t *state; 827 828 if (!KBD_IS_ACTIVE(kbd)) 829 return FALSE; 830 state = (atkbd_state_t *)kbd->kb_data; 831 if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0)) 832 return TRUE; 833 return kbdc_data_ready(state->kbdc); 834 } 835 836 /* some useful control functions */ 837 static int 838 atkbd_ioctl(keyboard_t *kbd, u_long cmd, caddr_t arg) 839 { 840 /* translate LED_XXX bits into the device specific bits */ 841 static u_char ledmap[8] = { 842 0, 4, 2, 6, 1, 5, 3, 7, 843 }; 844 atkbd_state_t *state = kbd->kb_data; 845 int error; 846 int s; 847 int i; 848 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 849 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 850 int ival; 851 #endif 852 853 s = spltty(); 854 switch (cmd) { 855 856 case KDGKBMODE: /* get keyboard mode */ 857 *(int *)arg = state->ks_mode; 858 break; 859 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 860 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 861 case _IO('K', 7): 862 ival = IOCPARM_IVAL(arg); 863 arg = (caddr_t)&ival; 864 /* FALLTHROUGH */ 865 #endif 866 case KDSKBMODE: /* set keyboard mode */ 867 switch (*(int *)arg) { 868 case K_XLATE: 869 if (state->ks_mode != K_XLATE) { 870 /* make lock key state and LED state match */ 871 state->ks_state &= ~LOCK_MASK; 872 state->ks_state |= KBD_LED_VAL(kbd); 873 } 874 /* FALLTHROUGH */ 875 case K_RAW: 876 case K_CODE: 877 if (state->ks_mode != *(int *)arg) { 878 atkbd_clear_state(kbd); 879 state->ks_mode = *(int *)arg; 880 } 881 break; 882 default: 883 splx(s); 884 return EINVAL; 885 } 886 break; 887 888 case KDGETLED: /* get keyboard LED */ 889 *(int *)arg = KBD_LED_VAL(kbd); 890 break; 891 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 892 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 893 case _IO('K', 66): 894 ival = IOCPARM_IVAL(arg); 895 arg = (caddr_t)&ival; 896 /* FALLTHROUGH */ 897 #endif 898 case KDSETLED: /* set keyboard LED */ 899 /* NOTE: lock key state in ks_state won't be changed */ 900 if (*(int *)arg & ~LOCK_MASK) { 901 splx(s); 902 return EINVAL; 903 } 904 i = *(int *)arg; 905 /* replace CAPS LED with ALTGR LED for ALTGR keyboards */ 906 if (state->ks_mode == K_XLATE && 907 kbd->kb_keymap->n_keys > ALTGR_OFFSET) { 908 if (i & ALKED) 909 i |= CLKED; 910 else 911 i &= ~CLKED; 912 } 913 if (KBD_HAS_DEVICE(kbd)) { 914 error = write_kbd(state->kbdc, KBDC_SET_LEDS, 915 ledmap[i & LED_MASK]); 916 if (error) { 917 splx(s); 918 return error; 919 } 920 } 921 KBD_LED_VAL(kbd) = *(int *)arg; 922 break; 923 924 case KDGKBSTATE: /* get lock key state */ 925 *(int *)arg = state->ks_state & LOCK_MASK; 926 break; 927 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 928 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 929 case _IO('K', 20): 930 ival = IOCPARM_IVAL(arg); 931 arg = (caddr_t)&ival; 932 /* FALLTHROUGH */ 933 #endif 934 case KDSKBSTATE: /* set lock key state */ 935 if (*(int *)arg & ~LOCK_MASK) { 936 splx(s); 937 return EINVAL; 938 } 939 state->ks_state &= ~LOCK_MASK; 940 state->ks_state |= *(int *)arg; 941 splx(s); 942 /* set LEDs and quit */ 943 return atkbd_ioctl(kbd, KDSETLED, arg); 944 945 case KDSETREPEAT: /* set keyboard repeat rate (new interface) */ 946 splx(s); 947 if (!KBD_HAS_DEVICE(kbd)) 948 return 0; 949 i = typematic(((int *)arg)[0], ((int *)arg)[1]); 950 error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, i); 951 if (error == 0) { 952 kbd->kb_delay1 = typematic_delay(i); 953 kbd->kb_delay2 = typematic_rate(i); 954 } 955 return error; 956 957 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 958 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 959 case _IO('K', 67): 960 ival = IOCPARM_IVAL(arg); 961 arg = (caddr_t)&ival; 962 /* FALLTHROUGH */ 963 #endif 964 case KDSETRAD: /* set keyboard repeat rate (old interface) */ 965 splx(s); 966 if (!KBD_HAS_DEVICE(kbd)) 967 return 0; 968 error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, *(int *)arg); 969 if (error == 0) { 970 kbd->kb_delay1 = typematic_delay(*(int *)arg); 971 kbd->kb_delay2 = typematic_rate(*(int *)arg); 972 } 973 return error; 974 975 case PIO_KEYMAP: /* set keyboard translation table */ 976 case OPIO_KEYMAP: /* set keyboard translation table (compat) */ 977 case PIO_KEYMAPENT: /* set keyboard translation table entry */ 978 case PIO_DEADKEYMAP: /* set accent key translation table */ 979 state->ks_accents = 0; 980 /* FALLTHROUGH */ 981 default: 982 splx(s); 983 return genkbd_commonioctl(kbd, cmd, arg); 984 } 985 986 splx(s); 987 return 0; 988 } 989 990 /* lock the access to the keyboard */ 991 static int 992 atkbd_lock(keyboard_t *kbd, int lock) 993 { 994 return kbdc_lock(((atkbd_state_t *)kbd->kb_data)->kbdc, lock); 995 } 996 997 /* clear the internal state of the keyboard */ 998 static void 999 atkbd_clear_state(keyboard_t *kbd) 1000 { 1001 atkbd_state_t *state; 1002 1003 state = (atkbd_state_t *)kbd->kb_data; 1004 state->ks_flags = 0; 1005 state->ks_polling = 0; 1006 state->ks_state &= LOCK_MASK; /* preserve locking key state */ 1007 state->ks_accents = 0; 1008 state->ks_composed_char = 0; 1009 #if 0 1010 state->ks_prefix = 0; /* XXX */ 1011 #endif 1012 } 1013 1014 /* save the internal state */ 1015 static int 1016 atkbd_get_state(keyboard_t *kbd, void *buf, size_t len) 1017 { 1018 if (len == 0) 1019 return sizeof(atkbd_state_t); 1020 if (len < sizeof(atkbd_state_t)) 1021 return -1; 1022 bcopy(kbd->kb_data, buf, sizeof(atkbd_state_t)); 1023 return 0; 1024 } 1025 1026 /* set the internal state */ 1027 static int 1028 atkbd_set_state(keyboard_t *kbd, void *buf, size_t len) 1029 { 1030 if (len < sizeof(atkbd_state_t)) 1031 return ENOMEM; 1032 if (((atkbd_state_t *)kbd->kb_data)->kbdc 1033 != ((atkbd_state_t *)buf)->kbdc) 1034 return ENOMEM; 1035 bcopy(buf, kbd->kb_data, sizeof(atkbd_state_t)); 1036 return 0; 1037 } 1038 1039 static int 1040 atkbd_poll(keyboard_t *kbd, int on) 1041 { 1042 atkbd_state_t *state; 1043 int s; 1044 1045 state = (atkbd_state_t *)kbd->kb_data; 1046 s = spltty(); 1047 if (on) 1048 ++state->ks_polling; 1049 else 1050 --state->ks_polling; 1051 splx(s); 1052 return 0; 1053 } 1054 1055 static void 1056 atkbd_shutdown_final(void *v) 1057 { 1058 #ifdef __sparc64__ 1059 keyboard_t *kbd = v; 1060 KBDC kbdc = ((atkbd_state_t *)kbd->kb_data)->kbdc; 1061 1062 /* 1063 * Turn off the translation in preparation for handing the keyboard 1064 * over to the OFW as the OBP driver doesn't use translation and 1065 * also doesn't disable it itself resulting in a broken keymap at 1066 * the boot prompt. Also disable the aux port and the interrupts as 1067 * the OBP driver doesn't use them, i.e. polls the keyboard. Not 1068 * disabling the interrupts doesn't cause real problems but the 1069 * responsiveness is a bit better when they are turned off. 1070 */ 1071 send_kbd_command(kbdc, KBDC_DISABLE_KBD); 1072 set_controller_command_byte(kbdc, 1073 KBD_AUX_CONTROL_BITS | KBD_KBD_CONTROL_BITS | KBD_TRANSLATION, 1074 KBD_DISABLE_AUX_PORT | KBD_DISABLE_KBD_INT | KBD_ENABLE_KBD_PORT); 1075 send_kbd_command(kbdc, KBDC_ENABLE_KBD); 1076 #endif 1077 } 1078 1079 /* local functions */ 1080 1081 static int 1082 set_typematic(keyboard_t *kbd) 1083 { 1084 int val, error; 1085 atkbd_state_t *state = kbd->kb_data; 1086 1087 val = typematic(DEFAULT_DELAY, DEFAULT_RATE); 1088 error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, val); 1089 if (error == 0) { 1090 kbd->kb_delay1 = typematic_delay(val); 1091 kbd->kb_delay2 = typematic_rate(val); 1092 } 1093 1094 return (error); 1095 } 1096 1097 static int 1098 setup_kbd_port(KBDC kbdc, int port, int intr) 1099 { 1100 if (!set_controller_command_byte(kbdc, 1101 KBD_KBD_CONTROL_BITS, 1102 ((port) ? KBD_ENABLE_KBD_PORT : KBD_DISABLE_KBD_PORT) 1103 | ((intr) ? KBD_ENABLE_KBD_INT : KBD_DISABLE_KBD_INT))) 1104 return 1; 1105 return 0; 1106 } 1107 1108 static int 1109 get_kbd_echo(KBDC kbdc) 1110 { 1111 /* enable the keyboard port, but disable the keyboard intr. */ 1112 if (setup_kbd_port(kbdc, TRUE, FALSE)) 1113 /* CONTROLLER ERROR: there is very little we can do... */ 1114 return ENXIO; 1115 1116 /* see if something is present */ 1117 write_kbd_command(kbdc, KBDC_ECHO); 1118 if (read_kbd_data(kbdc) != KBD_ECHO) { 1119 empty_both_buffers(kbdc, 10); 1120 test_controller(kbdc); 1121 test_kbd_port(kbdc); 1122 return ENXIO; 1123 } 1124 1125 /* enable the keyboard port and intr. */ 1126 if (setup_kbd_port(kbdc, TRUE, TRUE)) { 1127 /* 1128 * CONTROLLER ERROR 1129 * This is serious; the keyboard intr is left disabled! 1130 */ 1131 return ENXIO; 1132 } 1133 1134 return 0; 1135 } 1136 1137 static int 1138 probe_keyboard(KBDC kbdc, int flags) 1139 { 1140 /* 1141 * Don't try to print anything in this function. The low-level 1142 * console may not have been initialized yet... 1143 */ 1144 int err; 1145 int c; 1146 int m; 1147 1148 if (!kbdc_lock(kbdc, TRUE)) { 1149 /* driver error? */ 1150 return ENXIO; 1151 } 1152 1153 /* temporarily block data transmission from the keyboard */ 1154 write_controller_command(kbdc, KBDC_DISABLE_KBD_PORT); 1155 1156 /* flush any noise in the buffer */ 1157 empty_both_buffers(kbdc, 100); 1158 1159 /* save the current keyboard controller command byte */ 1160 m = kbdc_get_device_mask(kbdc) & ~KBD_KBD_CONTROL_BITS; 1161 c = get_controller_command_byte(kbdc); 1162 if (c == -1) { 1163 /* CONTROLLER ERROR */ 1164 kbdc_set_device_mask(kbdc, m); 1165 kbdc_lock(kbdc, FALSE); 1166 return ENXIO; 1167 } 1168 1169 /* 1170 * The keyboard may have been screwed up by the boot block. 1171 * We may just be able to recover from error by testing the controller 1172 * and the keyboard port. The controller command byte needs to be 1173 * saved before this recovery operation, as some controllers seem 1174 * to set the command byte to particular values. 1175 */ 1176 test_controller(kbdc); 1177 if (!(flags & KB_CONF_NO_PROBE_TEST)) 1178 test_kbd_port(kbdc); 1179 1180 err = get_kbd_echo(kbdc); 1181 1182 /* 1183 * Even if the keyboard doesn't seem to be present (err != 0), 1184 * we shall enable the keyboard port and interrupt so that 1185 * the driver will be operable when the keyboard is attached 1186 * to the system later. It is NOT recommended to hot-plug 1187 * the AT keyboard, but many people do so... 1188 */ 1189 kbdc_set_device_mask(kbdc, m | KBD_KBD_CONTROL_BITS); 1190 setup_kbd_port(kbdc, TRUE, TRUE); 1191 #if 0 1192 if (err == 0) { 1193 kbdc_set_device_mask(kbdc, m | KBD_KBD_CONTROL_BITS); 1194 } else { 1195 /* try to restore the command byte as before */ 1196 set_controller_command_byte(kbdc, 0xff, c); 1197 kbdc_set_device_mask(kbdc, m); 1198 } 1199 #endif 1200 1201 kbdc_lock(kbdc, FALSE); 1202 return err; 1203 } 1204 1205 static int 1206 init_keyboard(KBDC kbdc, int *type, int flags) 1207 { 1208 int codeset; 1209 int id; 1210 int c; 1211 1212 if (!kbdc_lock(kbdc, TRUE)) { 1213 /* driver error? */ 1214 return EIO; 1215 } 1216 1217 /* temporarily block data transmission from the keyboard */ 1218 write_controller_command(kbdc, KBDC_DISABLE_KBD_PORT); 1219 1220 /* save the current controller command byte */ 1221 empty_both_buffers(kbdc, 200); 1222 c = get_controller_command_byte(kbdc); 1223 if (c == -1) { 1224 /* CONTROLLER ERROR */ 1225 kbdc_lock(kbdc, FALSE); 1226 printf("atkbd: unable to get the current command byte value.\n"); 1227 return EIO; 1228 } 1229 if (bootverbose) 1230 printf("atkbd: the current kbd controller command byte %04x\n", 1231 c); 1232 #if 0 1233 /* override the keyboard lock switch */ 1234 c |= KBD_OVERRIDE_KBD_LOCK; 1235 #endif 1236 1237 /* enable the keyboard port, but disable the keyboard intr. */ 1238 if (setup_kbd_port(kbdc, TRUE, FALSE)) { 1239 /* CONTROLLER ERROR: there is very little we can do... */ 1240 printf("atkbd: unable to set the command byte.\n"); 1241 kbdc_lock(kbdc, FALSE); 1242 return EIO; 1243 } 1244 1245 /* 1246 * Check if we have an XT keyboard before we attempt to reset it. 1247 * The procedure assumes that the keyboard and the controller have 1248 * been set up properly by BIOS and have not been messed up 1249 * during the boot process. 1250 */ 1251 codeset = -1; 1252 if (flags & KB_CONF_ALT_SCANCODESET) 1253 /* the user says there is a XT keyboard */ 1254 codeset = 1; 1255 #ifdef KBD_DETECT_XT_KEYBOARD 1256 else if ((c & KBD_TRANSLATION) == 0) { 1257 /* SET_SCANCODE_SET is not always supported; ignore error */ 1258 if (send_kbd_command_and_data(kbdc, KBDC_SET_SCANCODE_SET, 0) 1259 == KBD_ACK) 1260 codeset = read_kbd_data(kbdc); 1261 } 1262 if (bootverbose) 1263 printf("atkbd: scancode set %d\n", codeset); 1264 #endif /* KBD_DETECT_XT_KEYBOARD */ 1265 1266 *type = KB_OTHER; 1267 id = get_kbd_id(kbdc); 1268 switch(id) { 1269 case 0x41ab: /* 101/102/... Enhanced */ 1270 case 0x83ab: /* ditto */ 1271 case 0x54ab: /* SpaceSaver */ 1272 case 0x84ab: /* ditto */ 1273 #if 0 1274 case 0x90ab: /* 'G' */ 1275 case 0x91ab: /* 'P' */ 1276 case 0x92ab: /* 'A' */ 1277 #endif 1278 *type = KB_101; 1279 break; 1280 case -1: /* AT 84 keyboard doesn't return ID */ 1281 *type = KB_84; 1282 break; 1283 default: 1284 break; 1285 } 1286 if (bootverbose) 1287 printf("atkbd: keyboard ID 0x%x (%d)\n", id, *type); 1288 1289 /* reset keyboard hardware */ 1290 if (!(flags & KB_CONF_NO_RESET) && !reset_kbd(kbdc)) { 1291 /* 1292 * KEYBOARD ERROR 1293 * Keyboard reset may fail either because the keyboard 1294 * doen't exist, or because the keyboard doesn't pass 1295 * the self-test, or the keyboard controller on the 1296 * motherboard and the keyboard somehow fail to shake hands. 1297 * It is just possible, particularly in the last case, 1298 * that the keyboard controller may be left in a hung state. 1299 * test_controller() and test_kbd_port() appear to bring 1300 * the keyboard controller back (I don't know why and how, 1301 * though.) 1302 */ 1303 empty_both_buffers(kbdc, 10); 1304 test_controller(kbdc); 1305 test_kbd_port(kbdc); 1306 /* 1307 * We could disable the keyboard port and interrupt... but, 1308 * the keyboard may still exist (see above). 1309 */ 1310 set_controller_command_byte(kbdc, 0xff, c); 1311 kbdc_lock(kbdc, FALSE); 1312 if (bootverbose) 1313 printf("atkbd: failed to reset the keyboard.\n"); 1314 return EIO; 1315 } 1316 1317 /* 1318 * Allow us to set the XT_KEYBD flag so that keyboards 1319 * such as those on the IBM ThinkPad laptop computers can be used 1320 * with the standard console driver. 1321 */ 1322 if (codeset == 1) { 1323 if (send_kbd_command_and_data(kbdc, 1324 KBDC_SET_SCANCODE_SET, codeset) == KBD_ACK) { 1325 /* XT kbd doesn't need scan code translation */ 1326 c &= ~KBD_TRANSLATION; 1327 } else { 1328 /* 1329 * KEYBOARD ERROR 1330 * The XT kbd isn't usable unless the proper scan 1331 * code set is selected. 1332 */ 1333 set_controller_command_byte(kbdc, 0xff, c); 1334 kbdc_lock(kbdc, FALSE); 1335 printf("atkbd: unable to set the XT keyboard mode.\n"); 1336 return EIO; 1337 } 1338 } 1339 1340 #if defined(__sparc64__) 1341 if (send_kbd_command_and_data( 1342 kbdc, KBDC_SET_SCANCODE_SET, 2) != KBD_ACK) { 1343 printf("atkbd: can't set translation.\n"); 1344 } 1345 c |= KBD_TRANSLATION; 1346 #endif 1347 1348 /* enable the keyboard port and intr. */ 1349 if (!set_controller_command_byte(kbdc, 1350 KBD_KBD_CONTROL_BITS | KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK, 1351 (c & (KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK)) 1352 | KBD_ENABLE_KBD_PORT | KBD_ENABLE_KBD_INT)) { 1353 /* 1354 * CONTROLLER ERROR 1355 * This is serious; we are left with the disabled 1356 * keyboard intr. 1357 */ 1358 set_controller_command_byte(kbdc, 0xff, c); 1359 kbdc_lock(kbdc, FALSE); 1360 printf("atkbd: unable to enable the keyboard port and intr.\n"); 1361 return EIO; 1362 } 1363 1364 kbdc_lock(kbdc, FALSE); 1365 return 0; 1366 } 1367 1368 static int 1369 write_kbd(KBDC kbdc, int command, int data) 1370 { 1371 int s; 1372 1373 /* prevent the timeout routine from polling the keyboard */ 1374 if (!kbdc_lock(kbdc, TRUE)) 1375 return EBUSY; 1376 1377 /* disable the keyboard and mouse interrupt */ 1378 s = spltty(); 1379 #if 0 1380 c = get_controller_command_byte(kbdc); 1381 if ((c == -1) 1382 || !set_controller_command_byte(kbdc, 1383 kbdc_get_device_mask(kbdc), 1384 KBD_DISABLE_KBD_PORT | KBD_DISABLE_KBD_INT 1385 | KBD_DISABLE_AUX_PORT | KBD_DISABLE_AUX_INT)) { 1386 /* CONTROLLER ERROR */ 1387 kbdc_lock(kbdc, FALSE); 1388 splx(s); 1389 return EIO; 1390 } 1391 /* 1392 * Now that the keyboard controller is told not to generate 1393 * the keyboard and mouse interrupts, call `splx()' to allow 1394 * the other tty interrupts. The clock interrupt may also occur, 1395 * but the timeout routine (`scrn_timer()') will be blocked 1396 * by the lock flag set via `kbdc_lock()' 1397 */ 1398 splx(s); 1399 #endif 1400 if (send_kbd_command_and_data(kbdc, command, data) != KBD_ACK) 1401 send_kbd_command(kbdc, KBDC_ENABLE_KBD); 1402 #if 0 1403 /* restore the interrupts */ 1404 if (!set_controller_command_byte(kbdc, kbdc_get_device_mask(kbdc), 1405 c & (KBD_KBD_CONTROL_BITS | KBD_AUX_CONTROL_BITS))) { 1406 /* CONTROLLER ERROR */ 1407 } 1408 #else 1409 splx(s); 1410 #endif 1411 kbdc_lock(kbdc, FALSE); 1412 1413 return 0; 1414 } 1415 1416 static int 1417 get_kbd_id(KBDC kbdc) 1418 { 1419 int id1, id2; 1420 1421 empty_both_buffers(kbdc, 10); 1422 id1 = id2 = -1; 1423 if (send_kbd_command(kbdc, KBDC_SEND_DEV_ID) != KBD_ACK) 1424 return -1; 1425 1426 DELAY(10000); /* 10 msec delay */ 1427 id1 = read_kbd_data(kbdc); 1428 if (id1 != -1) 1429 id2 = read_kbd_data(kbdc); 1430 1431 if ((id1 == -1) || (id2 == -1)) { 1432 empty_both_buffers(kbdc, 10); 1433 test_controller(kbdc); 1434 test_kbd_port(kbdc); 1435 return -1; 1436 } 1437 return ((id2 << 8) | id1); 1438 } 1439 1440 static int delays[] = { 250, 500, 750, 1000 }; 1441 static int rates[] = { 34, 38, 42, 46, 50, 55, 59, 63, 1442 68, 76, 84, 92, 100, 110, 118, 126, 1443 136, 152, 168, 184, 200, 220, 236, 252, 1444 272, 304, 336, 368, 400, 440, 472, 504 }; 1445 1446 static int 1447 typematic_delay(int i) 1448 { 1449 return delays[(i >> 5) & 3]; 1450 } 1451 1452 static int 1453 typematic_rate(int i) 1454 { 1455 return rates[i & 0x1f]; 1456 } 1457 1458 static int 1459 typematic(int delay, int rate) 1460 { 1461 int value; 1462 int i; 1463 1464 for (i = sizeof(delays)/sizeof(delays[0]) - 1; i > 0; --i) { 1465 if (delay >= delays[i]) 1466 break; 1467 } 1468 value = i << 5; 1469 for (i = sizeof(rates)/sizeof(rates[0]) - 1; i > 0; --i) { 1470 if (rate >= rates[i]) 1471 break; 1472 } 1473 value |= i; 1474 return value; 1475 }
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