1/*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer as 12 * the first lines of this file unmodified. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 */ 29 30#include <sys/cdefs.h> 31__FBSDID("$FreeBSD$"); 32 33#include "opt_kbd.h" 34#include "opt_atkbd.h" 35#include "opt_evdev.h" 36 37#include <sys/param.h> 38#include <sys/systm.h> 39#include <sys/kernel.h> 40#include <sys/bus.h> 41#include <sys/eventhandler.h> 42#include <sys/proc.h> 43#include <sys/limits.h> 44#include <sys/malloc.h> 45 46#include <machine/bus.h> 47#include <machine/resource.h> 48 49#include <sys/kbio.h> 50#include <dev/kbd/kbdreg.h> 51#include <dev/atkbdc/atkbdreg.h> 52#include <dev/atkbdc/atkbdcreg.h> 53 54#ifdef EVDEV_SUPPORT 55#include <dev/evdev/evdev.h> 56#include <dev/evdev/input.h> 57#endif 58 59typedef struct atkbd_state { 60 KBDC kbdc; /* keyboard controller */ 61 int ks_mode; /* input mode (K_XLATE,K_RAW,K_CODE) */ 62 int ks_flags; /* flags */ 63#define COMPOSE (1 << 0) 64 int ks_polling; 65 int ks_state; /* shift/lock key state */ 66 int ks_accents; /* accent key index (> 0) */ 67 u_int ks_composed_char; /* composed char code (> 0) */ 68 u_char ks_prefix; /* AT scan code prefix */ 69 struct callout ks_timer; 70#ifdef EVDEV_SUPPORT 71 struct evdev_dev *ks_evdev; 72 int ks_evdev_state; 73#endif 74} atkbd_state_t; 75 76static void atkbd_timeout(void *arg); 77static int atkbd_reset(KBDC kbdc, int flags, int c); 78 79#define HAS_QUIRK(p, q) (((atkbdc_softc_t *)(p))->quirks & q) 80#define ALLOW_DISABLE_KBD(kbdc) !HAS_QUIRK(kbdc, KBDC_QUIRK_KEEP_ACTIVATED) 81 82#define DEFAULT_DELAY 0x1 /* 500ms */ 83#define DEFAULT_RATE 0x10 /* 14Hz */ 84 85#ifdef EVDEV_SUPPORT 86#define PS2_KEYBOARD_VENDOR 1 87#define PS2_KEYBOARD_PRODUCT 1 88#endif 89 90int 91atkbd_probe_unit(device_t dev, int irq, int flags) 92{ 93 keyboard_switch_t *sw; 94 int args[2]; 95 int error; 96 97 sw = kbd_get_switch(ATKBD_DRIVER_NAME); 98 if (sw == NULL) 99 return ENXIO; 100 101 args[0] = device_get_unit(device_get_parent(dev)); 102 args[1] = irq; 103 error = (*sw->probe)(device_get_unit(dev), args, flags); 104 if (error) 105 return error; 106 return 0; 107} 108 109int 110atkbd_attach_unit(device_t dev, keyboard_t **kbd, int irq, int flags) 111{ 112 keyboard_switch_t *sw; 113 atkbd_state_t *state; 114 int args[2]; 115 int error; 116 int unit; 117 118 sw = kbd_get_switch(ATKBD_DRIVER_NAME); 119 if (sw == NULL) 120 return ENXIO; 121 122 /* reset, initialize and enable the device */ 123 unit = device_get_unit(dev); 124 args[0] = device_get_unit(device_get_parent(dev)); 125 args[1] = irq; 126 *kbd = NULL; 127 error = (*sw->probe)(unit, args, flags); 128 if (error) 129 return error; 130 error = (*sw->init)(unit, kbd, args, flags); 131 if (error) 132 return error; 133 (*sw->enable)(*kbd); 134 135#ifdef KBD_INSTALL_CDEV 136 /* attach a virtual keyboard cdev */ 137 error = kbd_attach(*kbd); 138 if (error) 139 return error; 140#endif 141 142 /* 143 * This is a kludge to compensate for lost keyboard interrupts. 144 * A similar code used to be in syscons. See below. XXX 145 */ 146 state = (atkbd_state_t *)(*kbd)->kb_data; 147 callout_init(&state->ks_timer, 0); 148 atkbd_timeout(*kbd); 149 150 if (bootverbose) 151 (*sw->diag)(*kbd, bootverbose); 152 153 return 0; 154} 155 156static void 157atkbd_timeout(void *arg) 158{ 159 atkbd_state_t *state; 160 keyboard_t *kbd; 161 int s; 162 163 /* 164 * The original text of the following comments are extracted 165 * from syscons.c (1.287) 166 * 167 * With release 2.1 of the Xaccel server, the keyboard is left 168 * hanging pretty often. Apparently an interrupt from the 169 * keyboard is lost, and I don't know why (yet). 170 * This ugly hack calls the low-level interrupt routine if input 171 * is ready for the keyboard and conveniently hides the problem. XXX 172 * 173 * Try removing anything stuck in the keyboard controller; whether 174 * it's a keyboard scan code or mouse data. The low-level 175 * interrupt routine doesn't read the mouse data directly, 176 * but the keyboard controller driver will, as a side effect. 177 */ 178 /* 179 * And here is bde's original comment about this: 180 * 181 * This is necessary to handle edge triggered interrupts - if we 182 * returned when our IRQ is high due to unserviced input, then there 183 * would be no more keyboard IRQs until the keyboard is reset by 184 * external powers. 185 * 186 * The keyboard apparently unwedges the irq in most cases. 187 */ 188 s = spltty(); 189 kbd = (keyboard_t *)arg; 190 if (kbdd_lock(kbd, TRUE)) { 191 /* 192 * We have seen the lock flag is not set. Let's reset 193 * the flag early, otherwise the LED update routine fails 194 * which may want the lock during the interrupt routine. 195 */ 196 kbdd_lock(kbd, FALSE); 197 if (kbdd_check_char(kbd)) 198 kbdd_intr(kbd, NULL); 199 } 200 splx(s); 201 state = (atkbd_state_t *)kbd->kb_data; 202 callout_reset(&state->ks_timer, hz / 10, atkbd_timeout, arg); 203} 204 205/* LOW-LEVEL */ 206 207#define ATKBD_DEFAULT 0 208 209/* keyboard driver declaration */ 210static int atkbd_configure(int flags); 211static kbd_probe_t atkbd_probe; 212static kbd_init_t atkbd_init; 213static kbd_term_t atkbd_term; 214static kbd_intr_t atkbd_intr; 215static kbd_test_if_t atkbd_test_if; 216static kbd_enable_t atkbd_enable; 217static kbd_disable_t atkbd_disable; 218static kbd_read_t atkbd_read; 219static kbd_check_t atkbd_check; 220static kbd_read_char_t atkbd_read_char; 221static kbd_check_char_t atkbd_check_char; 222static kbd_ioctl_t atkbd_ioctl; 223static kbd_lock_t atkbd_lock; 224static kbd_clear_state_t atkbd_clear_state; 225static kbd_get_state_t atkbd_get_state; 226static kbd_set_state_t atkbd_set_state; 227static kbd_poll_mode_t atkbd_poll; 228 229static keyboard_switch_t atkbdsw = { 230 .probe = atkbd_probe, 231 .init = atkbd_init, 232 .term = atkbd_term, 233 .intr = atkbd_intr, 234 .test_if = atkbd_test_if, 235 .enable = atkbd_enable, 236 .disable = atkbd_disable, 237 .read = atkbd_read, 238 .check = atkbd_check, 239 .read_char = atkbd_read_char, 240 .check_char = atkbd_check_char, 241 .ioctl = atkbd_ioctl, 242 .lock = atkbd_lock, 243 .clear_state = atkbd_clear_state, 244 .get_state = atkbd_get_state, 245 .set_state = atkbd_set_state, 246 .poll = atkbd_poll, 247}; 248 249KEYBOARD_DRIVER(atkbd, atkbdsw, atkbd_configure); 250 251/* local functions */ 252static int set_typematic(keyboard_t *kbd); 253static int setup_kbd_port(KBDC kbdc, int port, int intr); 254static int get_kbd_echo(KBDC kbdc); 255static int probe_keyboard(KBDC kbdc, int flags); 256static int init_keyboard(KBDC kbdc, int *type, int flags); 257static int write_kbd(KBDC kbdc, int command, int data); 258static int get_kbd_id(KBDC kbdc); 259static int typematic(int delay, int rate); 260static int typematic_delay(int delay); 261static int typematic_rate(int rate); 262 263#ifdef EVDEV_SUPPORT 264static evdev_event_t atkbd_ev_event; 265 266static const struct evdev_methods atkbd_evdev_methods = { 267 .ev_event = atkbd_ev_event, 268}; 269#endif 270 271/* local variables */ 272 273/* the initial key map, accent map and fkey strings */ 274#ifdef ATKBD_DFLT_KEYMAP 275#define KBD_DFLT_KEYMAP 276#include "atkbdmap.h" 277#endif 278#include <dev/kbd/kbdtables.h> 279 280/* structures for the default keyboard */ 281static keyboard_t default_kbd; 282static atkbd_state_t default_kbd_state; 283static keymap_t default_keymap; 284static accentmap_t default_accentmap; 285static fkeytab_t default_fkeytab[NUM_FKEYS]; 286 287/* 288 * The back door to the keyboard driver! 289 * This function is called by the console driver, via the kbdio module, 290 * to tickle keyboard drivers when the low-level console is being initialized. 291 * Almost nothing in the kernel has been initialied yet. Try to probe 292 * keyboards if possible. 293 * NOTE: because of the way the low-level console is initialized, this routine 294 * may be called more than once!! 295 */ 296static int 297atkbd_configure(int flags) 298{ 299 keyboard_t *kbd; 300 int arg[2]; 301 int i; 302 303 /* 304 * Probe the keyboard controller, if not present or if the driver 305 * is disabled, unregister the keyboard if any. 306 */ 307 if (atkbdc_configure() != 0 || 308 resource_disabled("atkbd", ATKBD_DEFAULT)) { 309 i = kbd_find_keyboard(ATKBD_DRIVER_NAME, ATKBD_DEFAULT); 310 if (i >= 0) { 311 kbd = kbd_get_keyboard(i); 312 kbd_unregister(kbd); 313 kbd->kb_flags &= ~KB_REGISTERED; 314 } 315 return 0; 316 } 317 318 /* XXX: a kludge to obtain the device configuration flags */ 319 if (resource_int_value("atkbd", ATKBD_DEFAULT, "flags", &i) == 0) 320 flags |= i; 321 322 /* probe the default keyboard */ 323 arg[0] = -1; 324 arg[1] = -1; 325 kbd = NULL; 326 if (atkbd_probe(ATKBD_DEFAULT, arg, flags)) 327 return 0; 328 if (atkbd_init(ATKBD_DEFAULT, &kbd, arg, flags)) 329 return 0; 330 331 /* return the number of found keyboards */ 332 return 1; 333} 334 335/* low-level functions */ 336 337/* detect a keyboard */ 338static int 339atkbd_probe(int unit, void *arg, int flags) 340{ 341 KBDC kbdc; 342 int *data = (int *)arg; /* data[0]: controller, data[1]: irq */ 343 344 /* XXX */ 345 if (unit == ATKBD_DEFAULT) { 346 if (KBD_IS_PROBED(&default_kbd)) 347 return 0; 348 } 349 350 kbdc = atkbdc_open(data[0]); 351 if (kbdc == NULL) 352 return ENXIO; 353 if (probe_keyboard(kbdc, flags)) { 354 if (flags & KB_CONF_FAIL_IF_NO_KBD) 355 return ENXIO; 356 } 357 return 0; 358} 359 360/* reset and initialize the device */ 361static int 362atkbd_init(int unit, keyboard_t **kbdp, void *arg, int flags) 363{ 364 keyboard_t *kbd; 365 atkbd_state_t *state; 366 keymap_t *keymap; 367 accentmap_t *accmap; 368 fkeytab_t *fkeymap; 369 int fkeymap_size; 370 int delay[2]; 371 int *data = (int *)arg; /* data[0]: controller, data[1]: irq */ 372 int error, needfree; 373#ifdef EVDEV_SUPPORT 374 struct evdev_dev *evdev; 375 char phys_loc[8]; 376#endif 377 378 /* XXX */ 379 if (unit == ATKBD_DEFAULT) { 380 *kbdp = kbd = &default_kbd; 381 if (KBD_IS_INITIALIZED(kbd) && KBD_IS_CONFIGURED(kbd)) 382 return 0; 383 state = &default_kbd_state; 384 keymap = &default_keymap; 385 accmap = &default_accentmap; 386 fkeymap = default_fkeytab; 387 fkeymap_size = nitems(default_fkeytab); 388 needfree = 0; 389 } else if (*kbdp == NULL) { 390 *kbdp = kbd = malloc(sizeof(*kbd), M_DEVBUF, M_NOWAIT | M_ZERO); 391 state = malloc(sizeof(*state), M_DEVBUF, M_NOWAIT | M_ZERO); 392 /* NB: these will always be initialized 'cuz !KBD_IS_PROBED */ 393 keymap = malloc(sizeof(key_map), M_DEVBUF, M_NOWAIT); 394 accmap = malloc(sizeof(accent_map), M_DEVBUF, M_NOWAIT); 395 fkeymap = malloc(sizeof(fkey_tab), M_DEVBUF, M_NOWAIT); 396 fkeymap_size = sizeof(fkey_tab)/sizeof(fkey_tab[0]); 397 needfree = 1; 398 if ((kbd == NULL) || (state == NULL) || (keymap == NULL) 399 || (accmap == NULL) || (fkeymap == NULL)) { 400 error = ENOMEM; 401 goto bad; 402 } 403 } else if (KBD_IS_INITIALIZED(*kbdp) && KBD_IS_CONFIGURED(*kbdp)) { 404 return 0; 405 } else { 406 kbd = *kbdp; 407 state = (atkbd_state_t *)kbd->kb_data; 408 bzero(state, sizeof(*state)); 409 keymap = kbd->kb_keymap; 410 accmap = kbd->kb_accentmap; 411 fkeymap = kbd->kb_fkeytab; 412 fkeymap_size = kbd->kb_fkeytab_size; 413 needfree = 0; 414 } 415 416 if (!KBD_IS_PROBED(kbd)) { 417 state->kbdc = atkbdc_open(data[0]); 418 if (state->kbdc == NULL) { 419 error = ENXIO; 420 goto bad; 421 } 422 kbd_init_struct(kbd, ATKBD_DRIVER_NAME, KB_OTHER, unit, flags, 423 0, 0); 424 bcopy(&key_map, keymap, sizeof(key_map)); 425 bcopy(&accent_map, accmap, sizeof(accent_map)); 426 bcopy(fkey_tab, fkeymap, 427 imin(fkeymap_size * sizeof(fkeymap[0]), sizeof(fkey_tab))); 428 kbd_set_maps(kbd, keymap, accmap, fkeymap, fkeymap_size); 429 kbd->kb_data = (void *)state; 430 431 if (probe_keyboard(state->kbdc, flags)) { /* shouldn't happen */ 432 if (flags & KB_CONF_FAIL_IF_NO_KBD) { 433 error = ENXIO; 434 goto bad; 435 } 436 } else { 437 KBD_FOUND_DEVICE(kbd); 438 } 439 atkbd_clear_state(kbd); 440 state->ks_mode = K_XLATE; 441 /* 442 * FIXME: set the initial value for lock keys in ks_state 443 * according to the BIOS data? 444 */ 445 KBD_PROBE_DONE(kbd); 446 } 447 if (!KBD_IS_INITIALIZED(kbd) && !(flags & KB_CONF_PROBE_ONLY)) { 448 kbd->kb_config = flags & ~KB_CONF_PROBE_ONLY; 449 if (KBD_HAS_DEVICE(kbd) 450 && init_keyboard(state->kbdc, &kbd->kb_type, kbd->kb_config) 451 && (kbd->kb_config & KB_CONF_FAIL_IF_NO_KBD)) { 452 kbd_unregister(kbd); 453 error = ENXIO; 454 goto bad; 455 } 456 atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state); 457 set_typematic(kbd); 458 delay[0] = kbd->kb_delay1; 459 delay[1] = kbd->kb_delay2; 460 atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay); 461 462#ifdef EVDEV_SUPPORT 463 /* register as evdev provider on first init */ 464 if (state->ks_evdev == NULL) { 465 snprintf(phys_loc, sizeof(phys_loc), "atkbd%d", unit); 466 evdev = evdev_alloc(); 467 evdev_set_name(evdev, "AT keyboard"); 468 evdev_set_phys(evdev, phys_loc); 469 evdev_set_id(evdev, BUS_I8042, PS2_KEYBOARD_VENDOR, 470 PS2_KEYBOARD_PRODUCT, 0); 471 evdev_set_methods(evdev, kbd, &atkbd_evdev_methods); 472 evdev_support_event(evdev, EV_SYN); 473 evdev_support_event(evdev, EV_KEY); 474 evdev_support_event(evdev, EV_LED); 475 evdev_support_event(evdev, EV_REP); 476 evdev_support_all_known_keys(evdev); 477 evdev_support_led(evdev, LED_NUML); 478 evdev_support_led(evdev, LED_CAPSL); 479 evdev_support_led(evdev, LED_SCROLLL); 480 481 if (evdev_register_mtx(evdev, &Giant)) 482 evdev_free(evdev); 483 else 484 state->ks_evdev = evdev; 485 state->ks_evdev_state = 0; 486 } 487#endif 488 489 KBD_INIT_DONE(kbd); 490 } 491 if (!KBD_IS_CONFIGURED(kbd)) { 492 if (kbd_register(kbd) < 0) { 493 error = ENXIO; 494 goto bad; 495 } 496 KBD_CONFIG_DONE(kbd); 497 } 498 499 return 0; 500bad: 501 if (needfree) { 502 if (state != NULL) 503 free(state, M_DEVBUF); 504 if (keymap != NULL) 505 free(keymap, M_DEVBUF); 506 if (accmap != NULL) 507 free(accmap, M_DEVBUF); 508 if (fkeymap != NULL) 509 free(fkeymap, M_DEVBUF); 510 if (kbd != NULL) { 511 free(kbd, M_DEVBUF); 512 *kbdp = NULL; /* insure ref doesn't leak to caller */ 513 } 514 } 515 return error; 516} 517 518/* finish using this keyboard */ 519static int 520atkbd_term(keyboard_t *kbd) 521{ 522 atkbd_state_t *state = (atkbd_state_t *)kbd->kb_data; 523 524 kbd_unregister(kbd); 525 callout_drain(&state->ks_timer); 526 return 0; 527} 528 529/* keyboard interrupt routine */ 530static int 531atkbd_intr(keyboard_t *kbd, void *arg) 532{ 533 atkbd_state_t *state = (atkbd_state_t *)kbd->kb_data; 534 int delay[2]; 535 int c; 536 537 if (!KBD_HAS_DEVICE(kbd)) { 538 /* 539 * The keyboard was not detected before; 540 * it must have been reconnected! 541 */ 542 init_keyboard(state->kbdc, &kbd->kb_type, kbd->kb_config); 543 KBD_FOUND_DEVICE(kbd); 544 atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state); 545 set_typematic(kbd); 546 delay[0] = kbd->kb_delay1; 547 delay[1] = kbd->kb_delay2; 548 atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay); 549 } 550 551 if (state->ks_polling) 552 return 0; 553 554 if (KBD_IS_ACTIVE(kbd) && KBD_IS_BUSY(kbd)) { 555 /* let the callback function to process the input */ 556 (*kbd->kb_callback.kc_func)(kbd, KBDIO_KEYINPUT, 557 kbd->kb_callback.kc_arg); 558 } else { 559 /* read and discard the input; no one is waiting for input */ 560 do { 561 c = atkbd_read_char(kbd, FALSE); 562 } while (c != NOKEY); 563 } 564 return 0; 565} 566 567/* test the interface to the device */ 568static int 569atkbd_test_if(keyboard_t *kbd) 570{ 571 int error; 572 int s; 573 574 error = 0; 575 empty_both_buffers(((atkbd_state_t *)kbd->kb_data)->kbdc, 10); 576 s = spltty(); 577 if (!test_controller(((atkbd_state_t *)kbd->kb_data)->kbdc)) 578 error = EIO; 579 else if (test_kbd_port(((atkbd_state_t *)kbd->kb_data)->kbdc) != 0) 580 error = EIO; 581 splx(s); 582 583 return error; 584} 585 586/* 587 * Enable the access to the device; until this function is called, 588 * the client cannot read from the keyboard. 589 */ 590static int 591atkbd_enable(keyboard_t *kbd) 592{ 593 int s; 594 595 s = spltty(); 596 KBD_ACTIVATE(kbd); 597 splx(s); 598 return 0; 599} 600 601/* disallow the access to the device */ 602static int 603atkbd_disable(keyboard_t *kbd) 604{ 605 int s; 606 607 s = spltty(); 608 KBD_DEACTIVATE(kbd); 609 splx(s); 610 return 0; 611} 612 613/* read one byte from the keyboard if it's allowed */ 614static int 615atkbd_read(keyboard_t *kbd, int wait) 616{ 617 int c; 618 619 if (wait) 620 c = read_kbd_data(((atkbd_state_t *)kbd->kb_data)->kbdc); 621 else 622 c = read_kbd_data_no_wait(((atkbd_state_t *)kbd->kb_data)->kbdc); 623 if (c != -1) 624 ++kbd->kb_count; 625 return (KBD_IS_ACTIVE(kbd) ? c : -1); 626} 627 628/* check if data is waiting */ 629static int 630atkbd_check(keyboard_t *kbd) 631{ 632 if (!KBD_IS_ACTIVE(kbd)) 633 return FALSE; 634 return kbdc_data_ready(((atkbd_state_t *)kbd->kb_data)->kbdc); 635} 636 637/* read char from the keyboard */ 638static u_int 639atkbd_read_char(keyboard_t *kbd, int wait) 640{ 641 atkbd_state_t *state; 642 u_int action; 643 int scancode; 644 int keycode; 645 646 state = (atkbd_state_t *)kbd->kb_data; 647next_code: 648 /* do we have a composed char to return? */ 649 if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0)) { 650 action = state->ks_composed_char; 651 state->ks_composed_char = 0; 652 if (action > UCHAR_MAX) 653 return ERRKEY; 654 return action; 655 } 656 657 /* see if there is something in the keyboard port */ 658 if (wait) { 659 do { 660 scancode = read_kbd_data(state->kbdc); 661 } while (scancode == -1); 662 } else { 663 scancode = read_kbd_data_no_wait(state->kbdc); 664 if (scancode == -1) 665 return NOKEY; 666 } 667 ++kbd->kb_count; 668 669#if KBDIO_DEBUG >= 10 670 printf("atkbd_read_char(): scancode:0x%x\n", scancode); 671#endif 672 673#ifdef EVDEV_SUPPORT 674 /* push evdev event */ 675 if (evdev_rcpt_mask & EVDEV_RCPT_HW_KBD && state->ks_evdev != NULL) { 676 keycode = evdev_scancode2key(&state->ks_evdev_state, 677 scancode); 678 679 if (keycode != KEY_RESERVED) { 680 evdev_push_event(state->ks_evdev, EV_KEY, 681 (uint16_t)keycode, scancode & 0x80 ? 0 : 1); 682 evdev_sync(state->ks_evdev); 683 } 684 } 685#endif 686 687 /* return the byte as is for the K_RAW mode */ 688 if (state->ks_mode == K_RAW) 689 return scancode; 690 691 /* translate the scan code into a keycode */ 692 keycode = scancode & 0x7F; 693 switch (state->ks_prefix) { 694 case 0x00: /* normal scancode */ 695 switch(scancode) { 696 case 0xB8: /* left alt (compose key) released */ 697 if (state->ks_flags & COMPOSE) { 698 state->ks_flags &= ~COMPOSE; 699 if (state->ks_composed_char > UCHAR_MAX) 700 state->ks_composed_char = 0; 701 } 702 break; 703 case 0x38: /* left alt (compose key) pressed */ 704 if (!(state->ks_flags & COMPOSE)) { 705 state->ks_flags |= COMPOSE; 706 state->ks_composed_char = 0; 707 } 708 break; 709 case 0xE0: 710 case 0xE1: 711 state->ks_prefix = scancode; 712 goto next_code; 713 } 714 break; 715 case 0xE0: /* 0xE0 prefix */ 716 state->ks_prefix = 0; 717 switch (keycode) { 718 case 0x1C: /* right enter key */ 719 keycode = 0x59; 720 break; 721 case 0x1D: /* right ctrl key */ 722 keycode = 0x5A; 723 break; 724 case 0x35: /* keypad divide key */ 725 keycode = 0x5B; 726 break; 727 case 0x37: /* print scrn key */ 728 keycode = 0x5C; 729 break; 730 case 0x38: /* right alt key (alt gr) */ 731 keycode = 0x5D; 732 break; 733 case 0x46: /* ctrl-pause/break on AT 101 (see below) */ 734 keycode = 0x68; 735 break; 736 case 0x47: /* grey home key */ 737 keycode = 0x5E; 738 break; 739 case 0x48: /* grey up arrow key */ 740 keycode = 0x5F; 741 break; 742 case 0x49: /* grey page up key */ 743 keycode = 0x60; 744 break; 745 case 0x4B: /* grey left arrow key */ 746 keycode = 0x61; 747 break; 748 case 0x4D: /* grey right arrow key */ 749 keycode = 0x62; 750 break; 751 case 0x4F: /* grey end key */ 752 keycode = 0x63; 753 break; 754 case 0x50: /* grey down arrow key */ 755 keycode = 0x64; 756 break; 757 case 0x51: /* grey page down key */ 758 keycode = 0x65; 759 break; 760 case 0x52: /* grey insert key */ 761 keycode = 0x66; 762 break; 763 case 0x53: /* grey delete key */ 764 keycode = 0x67; 765 break; 766 /* the following 3 are only used on the MS "Natural" keyboard */ 767 case 0x5b: /* left Window key */ 768 keycode = 0x69; 769 break; 770 case 0x5c: /* right Window key */ 771 keycode = 0x6a; 772 break; 773 case 0x5d: /* menu key */ 774 keycode = 0x6b; 775 break; 776 case 0x5e: /* power key */ 777 keycode = 0x6d; 778 break; 779 case 0x5f: /* sleep key */ 780 keycode = 0x6e; 781 break; 782 case 0x63: /* wake key */ 783 keycode = 0x6f; 784 break; 785 default: /* ignore everything else */ 786 goto next_code; 787 } 788 break; 789 case 0xE1: /* 0xE1 prefix */ 790 /* 791 * The pause/break key on the 101 keyboard produces: 792 * E1-1D-45 E1-9D-C5 793 * Ctrl-pause/break produces: 794 * E0-46 E0-C6 (See above.) 795 */ 796 state->ks_prefix = 0; 797 if (keycode == 0x1D) 798 state->ks_prefix = 0x1D; 799 goto next_code; 800 /* NOT REACHED */ 801 case 0x1D: /* pause / break */ 802 state->ks_prefix = 0; 803 if (keycode != 0x45) 804 goto next_code; 805 keycode = 0x68; 806 break; 807 } 808 809 if (kbd->kb_type == KB_84) { 810 switch (keycode) { 811 case 0x37: /* *(numpad)/print screen */ 812 if (state->ks_flags & SHIFTS) 813 keycode = 0x5c; /* print screen */ 814 break; 815 case 0x45: /* num lock/pause */ 816 if (state->ks_flags & CTLS) 817 keycode = 0x68; /* pause */ 818 break; 819 case 0x46: /* scroll lock/break */ 820 if (state->ks_flags & CTLS) 821 keycode = 0x6c; /* break */ 822 break; 823 } 824 } else if (kbd->kb_type == KB_101) { 825 switch (keycode) { 826 case 0x5c: /* print screen */ 827 if (state->ks_flags & ALTS) 828 keycode = 0x54; /* sysrq */ 829 break; 830 case 0x68: /* pause/break */ 831 if (state->ks_flags & CTLS) 832 keycode = 0x6c; /* break */ 833 break; 834 } 835 } 836 837 /* return the key code in the K_CODE mode */ 838 if (state->ks_mode == K_CODE) 839 return (keycode | (scancode & 0x80)); 840 841 /* compose a character code */ 842 if (state->ks_flags & COMPOSE) { 843 switch (keycode | (scancode & 0x80)) { 844 /* key pressed, process it */ 845 case 0x47: case 0x48: case 0x49: /* keypad 7,8,9 */ 846 state->ks_composed_char *= 10; 847 state->ks_composed_char += keycode - 0x40; 848 if (state->ks_composed_char > UCHAR_MAX) 849 return ERRKEY; 850 goto next_code; 851 case 0x4B: case 0x4C: case 0x4D: /* keypad 4,5,6 */ 852 state->ks_composed_char *= 10; 853 state->ks_composed_char += keycode - 0x47; 854 if (state->ks_composed_char > UCHAR_MAX) 855 return ERRKEY; 856 goto next_code; 857 case 0x4F: case 0x50: case 0x51: /* keypad 1,2,3 */ 858 state->ks_composed_char *= 10; 859 state->ks_composed_char += keycode - 0x4E; 860 if (state->ks_composed_char > UCHAR_MAX) 861 return ERRKEY; 862 goto next_code; 863 case 0x52: /* keypad 0 */ 864 state->ks_composed_char *= 10; 865 if (state->ks_composed_char > UCHAR_MAX) 866 return ERRKEY; 867 goto next_code; 868 869 /* key released, no interest here */ 870 case 0xC7: case 0xC8: case 0xC9: /* keypad 7,8,9 */ 871 case 0xCB: case 0xCC: case 0xCD: /* keypad 4,5,6 */ 872 case 0xCF: case 0xD0: case 0xD1: /* keypad 1,2,3 */ 873 case 0xD2: /* keypad 0 */ 874 goto next_code; 875 876 case 0x38: /* left alt key */ 877 break; 878 879 default: 880 if (state->ks_composed_char > 0) { 881 state->ks_flags &= ~COMPOSE; 882 state->ks_composed_char = 0; 883 return ERRKEY; 884 } 885 break; 886 } 887 } 888 889 /* keycode to key action */ 890 action = genkbd_keyaction(kbd, keycode, scancode & 0x80, 891 &state->ks_state, &state->ks_accents); 892 if (action == NOKEY) 893 goto next_code; 894 else 895 return action; 896} 897 898/* check if char is waiting */ 899static int 900atkbd_check_char(keyboard_t *kbd) 901{ 902 atkbd_state_t *state; 903 904 if (!KBD_IS_ACTIVE(kbd)) 905 return FALSE; 906 state = (atkbd_state_t *)kbd->kb_data; 907 if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0)) 908 return TRUE; 909 return kbdc_data_ready(state->kbdc); 910} 911 912/* some useful control functions */ 913static int 914atkbd_ioctl(keyboard_t *kbd, u_long cmd, caddr_t arg) 915{ 916 /* translate LED_XXX bits into the device specific bits */ 917 static u_char ledmap[8] = { 918 0, 4, 2, 6, 1, 5, 3, 7, 919 }; 920 atkbd_state_t *state = kbd->kb_data; 921 int error; 922 int s; 923 int i; 924#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 925 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 926 int ival; 927#endif 928 929 s = spltty(); 930 switch (cmd) { 931 case KDGKBMODE: /* get keyboard mode */ 932 *(int *)arg = state->ks_mode; 933 break; 934#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 935 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 936 case _IO('K', 7): 937 ival = IOCPARM_IVAL(arg); 938 arg = (caddr_t)&ival; 939 /* FALLTHROUGH */ 940#endif 941 case KDSKBMODE: /* set keyboard mode */ 942 switch (*(int *)arg) { 943 case K_XLATE: 944 if (state->ks_mode != K_XLATE) { 945 /* make lock key state and LED state match */ 946 state->ks_state &= ~LOCK_MASK; 947 state->ks_state |= KBD_LED_VAL(kbd); 948 } 949 /* FALLTHROUGH */ 950 case K_RAW: 951 case K_CODE: 952 if (state->ks_mode != *(int *)arg) { 953 atkbd_clear_state(kbd); 954 state->ks_mode = *(int *)arg; 955 } 956 break; 957 default: 958 splx(s); 959 return EINVAL; 960 } 961 break; 962 963 case KDGETLED: /* get keyboard LED */ 964 *(int *)arg = KBD_LED_VAL(kbd); 965 break; 966#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 967 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 968 case _IO('K', 66): 969 ival = IOCPARM_IVAL(arg); 970 arg = (caddr_t)&ival; 971 /* FALLTHROUGH */ 972#endif 973 case KDSETLED: /* set keyboard LED */ 974 /* NOTE: lock key state in ks_state won't be changed */ 975 if (*(int *)arg & ~LOCK_MASK) { 976 splx(s); 977 return EINVAL; 978 } 979 i = *(int *)arg; 980 /* replace CAPS LED with ALTGR LED for ALTGR keyboards */ 981 if (state->ks_mode == K_XLATE && 982 kbd->kb_keymap->n_keys > ALTGR_OFFSET) { 983 if (i & ALKED) 984 i |= CLKED; 985 else 986 i &= ~CLKED; 987 } 988 if (KBD_HAS_DEVICE(kbd)) { 989 error = write_kbd(state->kbdc, KBDC_SET_LEDS, 990 ledmap[i & LED_MASK]); 991 if (error) { 992 splx(s); 993 return error; 994 } 995 } 996#ifdef EVDEV_SUPPORT 997 /* push LED states to evdev */ 998 if (state->ks_evdev != NULL && 999 evdev_rcpt_mask & EVDEV_RCPT_HW_KBD) 1000 evdev_push_leds(state->ks_evdev, *(int *)arg); 1001#endif 1002 KBD_LED_VAL(kbd) = *(int *)arg; 1003 break; 1004 1005 case KDGKBSTATE: /* get lock key state */ 1006 *(int *)arg = state->ks_state & LOCK_MASK; 1007 break; 1008#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 1009 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 1010 case _IO('K', 20): 1011 ival = IOCPARM_IVAL(arg); 1012 arg = (caddr_t)&ival; 1013 /* FALLTHROUGH */ 1014#endif 1015 case KDSKBSTATE: /* set lock key state */ 1016 if (*(int *)arg & ~LOCK_MASK) { 1017 splx(s); 1018 return EINVAL; 1019 } 1020 state->ks_state &= ~LOCK_MASK; 1021 state->ks_state |= *(int *)arg; 1022 splx(s); 1023 /* set LEDs and quit */ 1024 return atkbd_ioctl(kbd, KDSETLED, arg); 1025 1026 case KDSETREPEAT: /* set keyboard repeat rate (new interface) */ 1027 splx(s); 1028 if (!KBD_HAS_DEVICE(kbd)) 1029 return 0; 1030 i = typematic(((int *)arg)[0], ((int *)arg)[1]); 1031 error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, i); 1032 if (error == 0) { 1033 kbd->kb_delay1 = typematic_delay(i); 1034 kbd->kb_delay2 = typematic_rate(i); 1035#ifdef EVDEV_SUPPORT 1036 if (state->ks_evdev != NULL && 1037 evdev_rcpt_mask & EVDEV_RCPT_HW_KBD) 1038 evdev_push_repeats(state->ks_evdev, kbd); 1039#endif 1040 } 1041 return error; 1042 1043#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 1044 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 1045 case _IO('K', 67): 1046 ival = IOCPARM_IVAL(arg); 1047 arg = (caddr_t)&ival; 1048 /* FALLTHROUGH */ 1049#endif 1050 case KDSETRAD: /* set keyboard repeat rate (old interface) */ 1051 splx(s); 1052 if (!KBD_HAS_DEVICE(kbd)) 1053 return 0; 1054 error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, *(int *)arg); 1055 if (error == 0) { 1056 kbd->kb_delay1 = typematic_delay(*(int *)arg); 1057 kbd->kb_delay2 = typematic_rate(*(int *)arg); 1058#ifdef EVDEV_SUPPORT 1059 if (state->ks_evdev != NULL && 1060 evdev_rcpt_mask & EVDEV_RCPT_HW_KBD) 1061 evdev_push_repeats(state->ks_evdev, kbd); 1062#endif 1063 } 1064 return error; 1065 1066 case PIO_KEYMAP: /* set keyboard translation table */ 1067 case OPIO_KEYMAP: /* set keyboard translation table (compat) */ 1068 case PIO_KEYMAPENT: /* set keyboard translation table entry */ 1069 case PIO_DEADKEYMAP: /* set accent key translation table */ 1070 state->ks_accents = 0; 1071 /* FALLTHROUGH */ 1072 default: 1073 splx(s); 1074 return genkbd_commonioctl(kbd, cmd, arg); 1075 } 1076 1077 splx(s); 1078 return 0; 1079} 1080 1081/* lock the access to the keyboard */ 1082static int 1083atkbd_lock(keyboard_t *kbd, int lock) 1084{ 1085 return kbdc_lock(((atkbd_state_t *)kbd->kb_data)->kbdc, lock); 1086} 1087 1088/* clear the internal state of the keyboard */ 1089static void 1090atkbd_clear_state(keyboard_t *kbd) 1091{ 1092 atkbd_state_t *state; 1093 1094 state = (atkbd_state_t *)kbd->kb_data; 1095 state->ks_flags = 0; 1096 state->ks_polling = 0; 1097 state->ks_state &= LOCK_MASK; /* preserve locking key state */ 1098 state->ks_accents = 0; 1099 state->ks_composed_char = 0; 1100#if 0 1101 state->ks_prefix = 0; /* XXX */ 1102#endif 1103} 1104 1105/* save the internal state */ 1106static int 1107atkbd_get_state(keyboard_t *kbd, void *buf, size_t len) 1108{ 1109 if (len == 0) 1110 return sizeof(atkbd_state_t); 1111 if (len < sizeof(atkbd_state_t)) 1112 return -1; 1113 bcopy(kbd->kb_data, buf, sizeof(atkbd_state_t)); 1114 return 0; 1115} 1116 1117/* set the internal state */ 1118static int 1119atkbd_set_state(keyboard_t *kbd, void *buf, size_t len) 1120{ 1121 if (len < sizeof(atkbd_state_t)) 1122 return ENOMEM; 1123 if (((atkbd_state_t *)kbd->kb_data)->kbdc 1124 != ((atkbd_state_t *)buf)->kbdc) 1125 return ENOMEM; 1126 bcopy(buf, kbd->kb_data, sizeof(atkbd_state_t)); 1127 return 0; 1128} 1129 1130static int 1131atkbd_poll(keyboard_t *kbd, int on) 1132{ 1133 atkbd_state_t *state; 1134 int s; 1135 1136 state = (atkbd_state_t *)kbd->kb_data; 1137 s = spltty(); 1138 if (on) 1139 ++state->ks_polling; 1140 else 1141 --state->ks_polling; 1142 splx(s); 1143 return 0; 1144} 1145 1146static int 1147atkbd_reset(KBDC kbdc, int flags, int c) 1148{ 1149 /* reset keyboard hardware */ 1150 if (!(flags & KB_CONF_NO_RESET) && !reset_kbd(kbdc)) { 1151 /* 1152 * KEYBOARD ERROR 1153 * Keyboard reset may fail either because the keyboard 1154 * doen't exist, or because the keyboard doesn't pass 1155 * the self-test, or the keyboard controller on the 1156 * motherboard and the keyboard somehow fail to shake hands. 1157 * It is just possible, particularly in the last case, 1158 * that the keyboard controller may be left in a hung state. 1159 * test_controller() and test_kbd_port() appear to bring 1160 * the keyboard controller back (I don't know why and how, 1161 * though.) 1162 */ 1163 empty_both_buffers(kbdc, 10); 1164 test_controller(kbdc); 1165 test_kbd_port(kbdc); 1166 /* 1167 * We could disable the keyboard port and interrupt... but, 1168 * the keyboard may still exist (see above). 1169 */ 1170 set_controller_command_byte(kbdc, 1171 ALLOW_DISABLE_KBD(kbdc) ? 0xff : KBD_KBD_CONTROL_BITS, c); 1172 if (bootverbose) 1173 printf("atkbd: failed to reset the keyboard.\n"); 1174 return (EIO); 1175 } 1176 return (0); 1177} 1178 1179#ifdef EVDEV_SUPPORT 1180static void 1181atkbd_ev_event(struct evdev_dev *evdev, uint16_t type, uint16_t code, 1182 int32_t value) 1183{ 1184 keyboard_t *kbd = evdev_get_softc(evdev); 1185 1186 if (evdev_rcpt_mask & EVDEV_RCPT_HW_KBD && 1187 (type == EV_LED || type == EV_REP)) { 1188 mtx_lock(&Giant); 1189 kbd_ev_event(kbd, type, code, value); 1190 mtx_unlock(&Giant); 1191 } 1192} 1193#endif 1194 1195/* local functions */ 1196 1197static int 1198set_typematic(keyboard_t *kbd) 1199{ 1200 int val, error; 1201 atkbd_state_t *state = kbd->kb_data; 1202 1203 val = typematic(DEFAULT_DELAY, DEFAULT_RATE); 1204 error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, val); 1205 if (error == 0) { 1206 kbd->kb_delay1 = typematic_delay(val); 1207 kbd->kb_delay2 = typematic_rate(val); 1208 } 1209 1210 return (error); 1211} 1212 1213static int 1214setup_kbd_port(KBDC kbdc, int port, int intr) 1215{ 1216 if (!set_controller_command_byte(kbdc, 1217 KBD_KBD_CONTROL_BITS, 1218 ((port) ? KBD_ENABLE_KBD_PORT : KBD_DISABLE_KBD_PORT) 1219 | ((intr) ? KBD_ENABLE_KBD_INT : KBD_DISABLE_KBD_INT))) 1220 return 1; 1221 return 0; 1222} 1223 1224static int 1225get_kbd_echo(KBDC kbdc) 1226{ 1227 /* enable the keyboard port, but disable the keyboard intr. */ 1228 if (setup_kbd_port(kbdc, TRUE, FALSE)) 1229 /* CONTROLLER ERROR: there is very little we can do... */ 1230 return ENXIO; 1231 1232 /* see if something is present */ 1233 write_kbd_command(kbdc, KBDC_ECHO); 1234 if (read_kbd_data(kbdc) != KBD_ECHO) { 1235 empty_both_buffers(kbdc, 10); 1236 test_controller(kbdc); 1237 test_kbd_port(kbdc); 1238 return ENXIO; 1239 } 1240 1241 /* enable the keyboard port and intr. */ 1242 if (setup_kbd_port(kbdc, TRUE, TRUE)) { 1243 /* 1244 * CONTROLLER ERROR 1245 * This is serious; the keyboard intr is left disabled! 1246 */ 1247 return ENXIO; 1248 } 1249 1250 return 0; 1251} 1252 1253static int 1254probe_keyboard(KBDC kbdc, int flags) 1255{ 1256 /* 1257 * Don't try to print anything in this function. The low-level 1258 * console may not have been initialized yet... 1259 */ 1260 int err; 1261 int c; 1262 int m; 1263 1264 if (!kbdc_lock(kbdc, TRUE)) { 1265 /* driver error? */ 1266 return ENXIO; 1267 } 1268 1269 /* temporarily block data transmission from the keyboard */ 1270 write_controller_command(kbdc, KBDC_DISABLE_KBD_PORT); 1271 1272 /* flush any noise in the buffer */ 1273 empty_both_buffers(kbdc, 100); 1274 1275 /* save the current keyboard controller command byte */ 1276 m = kbdc_get_device_mask(kbdc) & ~KBD_KBD_CONTROL_BITS; 1277 c = get_controller_command_byte(kbdc); 1278 if (c == -1) { 1279 /* CONTROLLER ERROR */ 1280 kbdc_set_device_mask(kbdc, m); 1281 kbdc_lock(kbdc, FALSE); 1282 return ENXIO; 1283 } 1284 1285 /* 1286 * The keyboard may have been screwed up by the boot block. 1287 * We may just be able to recover from error by testing the controller 1288 * and the keyboard port. The controller command byte needs to be 1289 * saved before this recovery operation, as some controllers seem 1290 * to set the command byte to particular values. 1291 */ 1292 test_controller(kbdc); 1293 if (!(flags & KB_CONF_NO_PROBE_TEST)) 1294 test_kbd_port(kbdc); 1295 1296 err = get_kbd_echo(kbdc); 1297 1298 /* 1299 * Even if the keyboard doesn't seem to be present (err != 0), 1300 * we shall enable the keyboard port and interrupt so that 1301 * the driver will be operable when the keyboard is attached 1302 * to the system later. It is NOT recommended to hot-plug 1303 * the AT keyboard, but many people do so... 1304 */ 1305 kbdc_set_device_mask(kbdc, m | KBD_KBD_CONTROL_BITS); 1306 setup_kbd_port(kbdc, TRUE, TRUE); 1307#if 0 1308 if (err == 0) { 1309 kbdc_set_device_mask(kbdc, m | KBD_KBD_CONTROL_BITS); 1310 } else { 1311 /* try to restore the command byte as before */ 1312 set_controller_command_byte(kbdc, 1313 ALLOW_DISABLE_KBD(kbdc) ? 0xff : KBD_KBD_CONTROL_BITS, c); 1314 kbdc_set_device_mask(kbdc, m); 1315 } 1316#endif 1317 1318 kbdc_lock(kbdc, FALSE); 1319 return (HAS_QUIRK(kbdc, KBDC_QUIRK_IGNORE_PROBE_RESULT) ? 0 : err); 1320} 1321 1322static int 1323init_keyboard(KBDC kbdc, int *type, int flags) 1324{ 1325 int codeset; 1326 int id; 1327 int c; 1328 1329 if (!kbdc_lock(kbdc, TRUE)) { 1330 /* driver error? */ 1331 return EIO; 1332 } 1333 1334 /* temporarily block data transmission from the keyboard */ 1335 write_controller_command(kbdc, KBDC_DISABLE_KBD_PORT); 1336 1337 /* save the current controller command byte */ 1338 empty_both_buffers(kbdc, 200); 1339 c = get_controller_command_byte(kbdc); 1340 if (c == -1) { 1341 /* CONTROLLER ERROR */ 1342 kbdc_lock(kbdc, FALSE); 1343 printf("atkbd: unable to get the current command byte value.\n"); 1344 return EIO; 1345 } 1346 if (bootverbose) 1347 printf("atkbd: the current kbd controller command byte %04x\n", 1348 c); 1349#if 0 1350 /* override the keyboard lock switch */ 1351 c |= KBD_OVERRIDE_KBD_LOCK; 1352#endif 1353 1354 /* enable the keyboard port, but disable the keyboard intr. */ 1355 if (setup_kbd_port(kbdc, TRUE, FALSE)) { 1356 /* CONTROLLER ERROR: there is very little we can do... */ 1357 printf("atkbd: unable to set the command byte.\n"); 1358 kbdc_lock(kbdc, FALSE); 1359 return EIO; 1360 } 1361 1362 if (HAS_QUIRK(kbdc, KBDC_QUIRK_RESET_AFTER_PROBE) && 1363 atkbd_reset(kbdc, flags, c)) { 1364 kbdc_lock(kbdc, FALSE); 1365 return EIO; 1366 } 1367 1368 /* 1369 * Check if we have an XT keyboard before we attempt to reset it. 1370 * The procedure assumes that the keyboard and the controller have 1371 * been set up properly by BIOS and have not been messed up 1372 * during the boot process. 1373 */ 1374 codeset = -1; 1375 if (flags & KB_CONF_ALT_SCANCODESET) 1376 /* the user says there is a XT keyboard */ 1377 codeset = 1; 1378#ifdef KBD_DETECT_XT_KEYBOARD 1379 else if ((c & KBD_TRANSLATION) == 0) { 1380 /* SET_SCANCODE_SET is not always supported; ignore error */ 1381 if (send_kbd_command_and_data(kbdc, KBDC_SET_SCANCODE_SET, 0) 1382 == KBD_ACK) 1383 codeset = read_kbd_data(kbdc); 1384 } 1385 if (bootverbose) 1386 printf("atkbd: scancode set %d\n", codeset); 1387#endif /* KBD_DETECT_XT_KEYBOARD */ 1388 1389 *type = KB_OTHER; 1390 id = get_kbd_id(kbdc); 1391 switch(id) { 1392 case 0x41ab: /* 101/102/... Enhanced */ 1393 case 0x83ab: /* ditto */ 1394 case 0x54ab: /* SpaceSaver */ 1395 case 0x84ab: /* ditto */ 1396#if 0 1397 case 0x90ab: /* 'G' */ 1398 case 0x91ab: /* 'P' */ 1399 case 0x92ab: /* 'A' */ 1400#endif 1401 *type = KB_101; 1402 break; 1403 case -1: /* AT 84 keyboard doesn't return ID */ 1404 *type = KB_84; 1405 break; 1406 default: 1407 break; 1408 } 1409 if (bootverbose) 1410 printf("atkbd: keyboard ID 0x%x (%d)\n", id, *type); 1411 1412 if (!HAS_QUIRK(kbdc, KBDC_QUIRK_RESET_AFTER_PROBE) && 1413 atkbd_reset(kbdc, flags, c)) { 1414 kbdc_lock(kbdc, FALSE); 1415 return EIO; 1416 } 1417 1418 /* 1419 * Allow us to set the XT_KEYBD flag so that keyboards 1420 * such as those on the IBM ThinkPad laptop computers can be used 1421 * with the standard console driver. 1422 */ 1423 if (codeset == 1) { 1424 if (send_kbd_command_and_data(kbdc, 1425 KBDC_SET_SCANCODE_SET, codeset) == KBD_ACK) { 1426 /* XT kbd doesn't need scan code translation */ 1427 c &= ~KBD_TRANSLATION; 1428 } else { 1429 /* 1430 * KEYBOARD ERROR 1431 * The XT kbd isn't usable unless the proper scan 1432 * code set is selected. 1433 */ 1434 set_controller_command_byte(kbdc, ALLOW_DISABLE_KBD(kbdc) 1435 ? 0xff : KBD_KBD_CONTROL_BITS, c); 1436 kbdc_lock(kbdc, FALSE); 1437 printf("atkbd: unable to set the XT keyboard mode.\n"); 1438 return EIO; 1439 } 1440 } 1441 1442 /* 1443 * Some keyboards require a SETLEDS command to be sent after 1444 * the reset command before they will send keystrokes to us 1445 */ 1446 if (HAS_QUIRK(kbdc, KBDC_QUIRK_SETLEDS_ON_INIT) && 1447 send_kbd_command_and_data(kbdc, KBDC_SET_LEDS, 0) != KBD_ACK) { 1448 printf("atkbd: setleds failed\n"); 1449 } 1450 if (!ALLOW_DISABLE_KBD(kbdc)) 1451 send_kbd_command(kbdc, KBDC_ENABLE_KBD); 1452 1453 /* enable the keyboard port and intr. */ 1454 if (!set_controller_command_byte(kbdc, 1455 KBD_KBD_CONTROL_BITS | KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK, 1456 (c & (KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK)) 1457 | KBD_ENABLE_KBD_PORT | KBD_ENABLE_KBD_INT)) { 1458 /* 1459 * CONTROLLER ERROR 1460 * This is serious; we are left with the disabled 1461 * keyboard intr. 1462 */ 1463 set_controller_command_byte(kbdc, ALLOW_DISABLE_KBD(kbdc) 1464 ? 0xff : (KBD_KBD_CONTROL_BITS | KBD_TRANSLATION | 1465 KBD_OVERRIDE_KBD_LOCK), c); 1466 kbdc_lock(kbdc, FALSE); 1467 printf("atkbd: unable to enable the keyboard port and intr.\n"); 1468 return EIO; 1469 } 1470 1471 kbdc_lock(kbdc, FALSE); 1472 return 0; 1473} 1474 1475static int 1476write_kbd(KBDC kbdc, int command, int data) 1477{ 1478 int s; 1479 1480 /* prevent the timeout routine from polling the keyboard */ 1481 if (!kbdc_lock(kbdc, TRUE)) 1482 return EBUSY; 1483 1484 /* disable the keyboard and mouse interrupt */ 1485 s = spltty(); 1486#if 0 1487 c = get_controller_command_byte(kbdc); 1488 if ((c == -1) 1489 || !set_controller_command_byte(kbdc, 1490 kbdc_get_device_mask(kbdc), 1491 KBD_DISABLE_KBD_PORT | KBD_DISABLE_KBD_INT 1492 | KBD_DISABLE_AUX_PORT | KBD_DISABLE_AUX_INT)) { 1493 /* CONTROLLER ERROR */ 1494 kbdc_lock(kbdc, FALSE); 1495 splx(s); 1496 return EIO; 1497 } 1498 /* 1499 * Now that the keyboard controller is told not to generate 1500 * the keyboard and mouse interrupts, call `splx()' to allow 1501 * the other tty interrupts. The clock interrupt may also occur, 1502 * but the timeout routine (`scrn_timer()') will be blocked 1503 * by the lock flag set via `kbdc_lock()' 1504 */ 1505 splx(s); 1506#endif 1507 if (send_kbd_command_and_data(kbdc, command, data) != KBD_ACK) 1508 send_kbd_command(kbdc, KBDC_ENABLE_KBD); 1509#if 0 1510 /* restore the interrupts */ 1511 if (!set_controller_command_byte(kbdc, kbdc_get_device_mask(kbdc), 1512 c & (KBD_KBD_CONTROL_BITS | KBD_AUX_CONTROL_BITS))) { 1513 /* CONTROLLER ERROR */ 1514 } 1515#else 1516 splx(s); 1517#endif 1518 kbdc_lock(kbdc, FALSE); 1519 1520 return 0; 1521} 1522 1523static int 1524get_kbd_id(KBDC kbdc) 1525{ 1526 int id1, id2; 1527 1528 empty_both_buffers(kbdc, 10); 1529 id1 = id2 = -1; 1530 if (send_kbd_command(kbdc, KBDC_SEND_DEV_ID) != KBD_ACK) 1531 return -1; 1532 1533 DELAY(10000); /* 10 msec delay */ 1534 id1 = read_kbd_data(kbdc); 1535 if (id1 != -1) 1536 id2 = read_kbd_data(kbdc); 1537 1538 if ((id1 == -1) || (id2 == -1)) { 1539 empty_both_buffers(kbdc, 10); 1540 test_controller(kbdc); 1541 test_kbd_port(kbdc); 1542 return -1; 1543 } 1544 return ((id2 << 8) | id1); 1545} 1546 1547static int delays[] = { 250, 500, 750, 1000 }; 1548static int rates[] = { 34, 38, 42, 46, 50, 55, 59, 63, 1549 68, 76, 84, 92, 100, 110, 118, 126, 1550 136, 152, 168, 184, 200, 220, 236, 252, 1551 272, 304, 336, 368, 400, 440, 472, 504 }; 1552 1553static int 1554typematic_delay(int i) 1555{ 1556 return delays[(i >> 5) & 3]; 1557} 1558 1559static int 1560typematic_rate(int i) 1561{ 1562 return rates[i & 0x1f]; 1563} 1564 1565static int 1566typematic(int delay, int rate) 1567{ 1568 int value; 1569 int i; 1570 1571 for (i = nitems(delays) - 1; i > 0; --i) { 1572 if (delay >= delays[i]) 1573 break; 1574 } 1575 value = i << 5; 1576 for (i = nitems(rates) - 1; i > 0; --i) { 1577 if (rate >= rates[i]) 1578 break; 1579 } 1580 value |= i; 1581 return value; 1582} 1583