1/*- 2 * SPDX-License-Identifier: BSD-2-Clause 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#include "opt_kbd.h" 32#include "opt_atkbd.h" 33#include "opt_evdev.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#include <sys/sysctl.h> 44 45#include <machine/bus.h> 46#include <machine/resource.h> 47 48#include <sys/kbio.h> 49#include <dev/kbd/kbdreg.h> 50#include <dev/atkbdc/atkbdreg.h> 51#include <dev/atkbdc/atkbdcreg.h> 52 53#ifdef EVDEV_SUPPORT 54#include <dev/evdev/evdev.h> 55#include <dev/evdev/input.h> 56#endif 57 58typedef struct atkbd_state { 59 KBDC kbdc; /* keyboard controller */ 60 int ks_mode; /* input mode (K_XLATE,K_RAW,K_CODE) */ 61 int ks_flags; /* flags */ 62#define COMPOSE (1 << 0) 63 int ks_polling; 64 int ks_state; /* shift/lock key state */ 65 int ks_accents; /* accent key index (> 0) */ 66 u_int ks_composed_char; /* composed char code (> 0) */ 67 u_char ks_prefix; /* AT scan code prefix */ 68 struct callout ks_timer; 69#ifdef EVDEV_SUPPORT 70 struct evdev_dev *ks_evdev; 71 int ks_evdev_state; 72#endif 73} atkbd_state_t; 74 75static SYSCTL_NODE(_hw, OID_AUTO, atkbd, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, 76 "AT keyboard"); 77 78static int atkbdhz = 0; 79SYSCTL_INT(_hw_atkbd, OID_AUTO, hz, CTLFLAG_RWTUN, &atkbdhz, 0, 80 "Polling frequency (in hz)"); 81 82static void atkbd_timeout(void *arg); 83static int atkbd_reset(KBDC kbdc, int flags, int c); 84 85#define HAS_QUIRK(p, q) (((atkbdc_softc_t *)(p))->quirks & q) 86#define ALLOW_DISABLE_KBD(kbdc) !HAS_QUIRK(kbdc, KBDC_QUIRK_KEEP_ACTIVATED) 87 88#define DEFAULT_DELAY 0x1 /* 500ms */ 89#define DEFAULT_RATE 0x10 /* 14Hz */ 90 91#ifdef EVDEV_SUPPORT 92#define PS2_KEYBOARD_VENDOR 1 93#define PS2_KEYBOARD_PRODUCT 1 94#endif 95 96int 97atkbd_probe_unit(device_t dev, int irq, int flags) 98{ 99 keyboard_switch_t *sw; 100 int args[2]; 101 int error; 102 103 sw = kbd_get_switch(ATKBD_DRIVER_NAME); 104 if (sw == NULL) 105 return ENXIO; 106 107 args[0] = device_get_unit(device_get_parent(dev)); 108 args[1] = irq; 109 error = (*sw->probe)(device_get_unit(dev), args, flags); 110 if (error) 111 return error; 112 return 0; 113} 114 115int 116atkbd_attach_unit(device_t dev, keyboard_t **kbd, int irq, int flags) 117{ 118 keyboard_switch_t *sw; 119 atkbd_state_t *state; 120 int args[2]; 121 int error; 122 int unit; 123 124 sw = kbd_get_switch(ATKBD_DRIVER_NAME); 125 if (sw == NULL) 126 return ENXIO; 127 128 /* reset, initialize and enable the device */ 129 unit = device_get_unit(dev); 130 args[0] = device_get_unit(device_get_parent(dev)); 131 args[1] = irq; 132 *kbd = NULL; 133 error = (*sw->probe)(unit, args, flags); 134 if (error) 135 return error; 136 error = (*sw->init)(unit, kbd, args, flags); 137 if (error) 138 return error; 139 (*sw->enable)(*kbd); 140 141#ifdef KBD_INSTALL_CDEV 142 /* attach a virtual keyboard cdev */ 143 error = kbd_attach(*kbd); 144 if (error) 145 return error; 146#endif 147 148 /* 149 * This is a kludge to compensate for lost keyboard interrupts. 150 * A similar code used to be in syscons. See below. XXX 151 */ 152 state = (atkbd_state_t *)(*kbd)->kb_data; 153 callout_init(&state->ks_timer, 0); 154 atkbd_timeout(*kbd); 155 156 if (bootverbose) 157 (*sw->diag)(*kbd, bootverbose); 158 159 return 0; 160} 161 162static void 163atkbd_timeout(void *arg) 164{ 165 atkbd_state_t *state; 166 keyboard_t *kbd; 167 int s; 168 169 /* 170 * The original text of the following comments are extracted 171 * from syscons.c (1.287) 172 * 173 * With release 2.1 of the Xaccel server, the keyboard is left 174 * hanging pretty often. Apparently an interrupt from the 175 * keyboard is lost, and I don't know why (yet). 176 * This ugly hack calls the low-level interrupt routine if input 177 * is ready for the keyboard and conveniently hides the problem. XXX 178 * 179 * Try removing anything stuck in the keyboard controller; whether 180 * it's a keyboard scan code or mouse data. The low-level 181 * interrupt routine doesn't read the mouse data directly, 182 * but the keyboard controller driver will, as a side effect. 183 */ 184 /* 185 * And here is bde's original comment about this: 186 * 187 * This is necessary to handle edge triggered interrupts - if we 188 * returned when our IRQ is high due to unserviced input, then there 189 * would be no more keyboard IRQs until the keyboard is reset by 190 * external powers. 191 * 192 * The keyboard apparently unwedges the irq in most cases. 193 */ 194 s = spltty(); 195 kbd = (keyboard_t *)arg; 196 if (kbdd_lock(kbd, TRUE)) { 197 /* 198 * We have seen the lock flag is not set. Let's reset 199 * the flag early, otherwise the LED update routine fails 200 * which may want the lock during the interrupt routine. 201 */ 202 kbdd_lock(kbd, FALSE); 203 if (kbdd_check_char(kbd)) 204 kbdd_intr(kbd, NULL); 205 } 206 splx(s); 207 if (atkbdhz > 0) { 208 state = (atkbd_state_t *)kbd->kb_data; 209 callout_reset_sbt(&state->ks_timer, SBT_1S / atkbdhz, 0, 210 atkbd_timeout, arg, C_PREL(1)); 211 } 212} 213 214/* LOW-LEVEL */ 215 216#define ATKBD_DEFAULT 0 217 218/* keyboard driver declaration */ 219static int atkbd_configure(int flags); 220static kbd_probe_t atkbd_probe; 221static kbd_init_t atkbd_init; 222static kbd_term_t atkbd_term; 223static kbd_intr_t atkbd_intr; 224static kbd_test_if_t atkbd_test_if; 225static kbd_enable_t atkbd_enable; 226static kbd_disable_t atkbd_disable; 227static kbd_read_t atkbd_read; 228static kbd_check_t atkbd_check; 229static kbd_read_char_t atkbd_read_char; 230static kbd_check_char_t atkbd_check_char; 231static kbd_ioctl_t atkbd_ioctl; 232static kbd_lock_t atkbd_lock; 233static kbd_clear_state_t atkbd_clear_state; 234static kbd_get_state_t atkbd_get_state; 235static kbd_set_state_t atkbd_set_state; 236static kbd_poll_mode_t atkbd_poll; 237 238static keyboard_switch_t atkbdsw = { 239 .probe = atkbd_probe, 240 .init = atkbd_init, 241 .term = atkbd_term, 242 .intr = atkbd_intr, 243 .test_if = atkbd_test_if, 244 .enable = atkbd_enable, 245 .disable = atkbd_disable, 246 .read = atkbd_read, 247 .check = atkbd_check, 248 .read_char = atkbd_read_char, 249 .check_char = atkbd_check_char, 250 .ioctl = atkbd_ioctl, 251 .lock = atkbd_lock, 252 .clear_state = atkbd_clear_state, 253 .get_state = atkbd_get_state, 254 .set_state = atkbd_set_state, 255 .poll = atkbd_poll, 256}; 257 258KEYBOARD_DRIVER(atkbd, atkbdsw, atkbd_configure); 259 260/* local functions */ 261static int set_typematic(keyboard_t *kbd); 262static int setup_kbd_port(KBDC kbdc, int port, int intr); 263static int get_kbd_echo(KBDC kbdc); 264static int probe_keyboard(KBDC kbdc, int flags); 265static int init_keyboard(KBDC kbdc, int *type, int flags); 266static int write_kbd(KBDC kbdc, int command, int data); 267static int get_kbd_id(KBDC kbdc); 268static int typematic(int delay, int rate); 269static int typematic_delay(int delay); 270static int typematic_rate(int rate); 271 272#ifdef EVDEV_SUPPORT 273static evdev_event_t atkbd_ev_event; 274 275static const struct evdev_methods atkbd_evdev_methods = { 276 .ev_event = atkbd_ev_event, 277}; 278#endif 279 280/* local variables */ 281 282/* the initial key map, accent map and fkey strings */ 283#ifdef ATKBD_DFLT_KEYMAP 284#define KBD_DFLT_KEYMAP 285#include "atkbdmap.h" 286#endif 287#include <dev/kbd/kbdtables.h> 288 289/* structures for the default keyboard */ 290static keyboard_t default_kbd; 291static atkbd_state_t default_kbd_state; 292static keymap_t default_keymap; 293static accentmap_t default_accentmap; 294static fkeytab_t default_fkeytab[NUM_FKEYS]; 295 296/* 297 * The back door to the keyboard driver! 298 * This function is called by the console driver, via the kbdio module, 299 * to tickle keyboard drivers when the low-level console is being initialized. 300 * Almost nothing in the kernel has been initialied yet. Try to probe 301 * keyboards if possible. 302 * NOTE: because of the way the low-level console is initialized, this routine 303 * may be called more than once!! 304 */ 305static int 306atkbd_configure(int flags) 307{ 308 keyboard_t *kbd; 309 int arg[2]; 310 int i; 311 312 /* 313 * Probe the keyboard controller, if not present or if the driver 314 * is disabled, unregister the keyboard if any. 315 */ 316 if (atkbdc_configure() != 0 || 317 resource_disabled("atkbd", ATKBD_DEFAULT)) { 318 i = kbd_find_keyboard(ATKBD_DRIVER_NAME, ATKBD_DEFAULT); 319 if (i >= 0) { 320 kbd = kbd_get_keyboard(i); 321 kbd_unregister(kbd); 322 kbd->kb_flags &= ~KB_REGISTERED; 323 } 324 return 0; 325 } 326 327 /* XXX: a kludge to obtain the device configuration flags */ 328 if (resource_int_value("atkbd", ATKBD_DEFAULT, "flags", &i) == 0) 329 flags |= i; 330 331 /* probe the default keyboard */ 332 arg[0] = -1; 333 arg[1] = -1; 334 kbd = NULL; 335 if (atkbd_probe(ATKBD_DEFAULT, arg, flags)) 336 return 0; 337 if (atkbd_init(ATKBD_DEFAULT, &kbd, arg, flags)) 338 return 0; 339 340 /* return the number of found keyboards */ 341 return 1; 342} 343 344/* low-level functions */ 345 346/* detect a keyboard */ 347static int 348atkbd_probe(int unit, void *arg, int flags) 349{ 350 KBDC kbdc; 351 int *data = (int *)arg; /* data[0]: controller, data[1]: irq */ 352 353 /* XXX */ 354 if (unit == ATKBD_DEFAULT) { 355 if (KBD_IS_PROBED(&default_kbd)) 356 return 0; 357 } 358 359 kbdc = atkbdc_open(data[0]); 360 if (kbdc == NULL) 361 return ENXIO; 362 if (probe_keyboard(kbdc, flags)) { 363 if (flags & KB_CONF_FAIL_IF_NO_KBD) 364 return ENXIO; 365 } 366 return 0; 367} 368 369/* reset and initialize the device */ 370static int 371atkbd_init(int unit, keyboard_t **kbdp, void *arg, int flags) 372{ 373 keyboard_t *kbd; 374 atkbd_state_t *state; 375 keymap_t *keymap; 376 accentmap_t *accmap; 377 fkeytab_t *fkeymap; 378 int fkeymap_size; 379 int delay[2]; 380 int *data = (int *)arg; /* data[0]: controller, data[1]: irq */ 381 int error, needfree; 382#ifdef EVDEV_SUPPORT 383 struct evdev_dev *evdev; 384 char phys_loc[8]; 385#endif 386 387 /* XXX */ 388 if (unit == ATKBD_DEFAULT) { 389 *kbdp = kbd = &default_kbd; 390 if (KBD_IS_INITIALIZED(kbd) && KBD_IS_CONFIGURED(kbd)) 391 return 0; 392 state = &default_kbd_state; 393 keymap = &default_keymap; 394 accmap = &default_accentmap; 395 fkeymap = default_fkeytab; 396 fkeymap_size = nitems(default_fkeytab); 397 needfree = 0; 398 } else if (*kbdp == NULL) { 399 *kbdp = kbd = malloc(sizeof(*kbd), M_DEVBUF, M_NOWAIT | M_ZERO); 400 state = malloc(sizeof(*state), M_DEVBUF, M_NOWAIT | M_ZERO); 401 /* NB: these will always be initialized 'cuz !KBD_IS_PROBED */ 402 keymap = malloc(sizeof(key_map), M_DEVBUF, M_NOWAIT); 403 accmap = malloc(sizeof(accent_map), M_DEVBUF, M_NOWAIT); 404 fkeymap = malloc(sizeof(fkey_tab), M_DEVBUF, M_NOWAIT); 405 fkeymap_size = sizeof(fkey_tab)/sizeof(fkey_tab[0]); 406 needfree = 1; 407 if ((kbd == NULL) || (state == NULL) || (keymap == NULL) 408 || (accmap == NULL) || (fkeymap == NULL)) { 409 error = ENOMEM; 410 goto bad; 411 } 412 } else if (KBD_IS_INITIALIZED(*kbdp) && KBD_IS_CONFIGURED(*kbdp)) { 413 return 0; 414 } else { 415 kbd = *kbdp; 416 state = (atkbd_state_t *)kbd->kb_data; 417 bzero(state, sizeof(*state)); 418 keymap = kbd->kb_keymap; 419 accmap = kbd->kb_accentmap; 420 fkeymap = kbd->kb_fkeytab; 421 fkeymap_size = kbd->kb_fkeytab_size; 422 needfree = 0; 423 } 424 425 if (!KBD_IS_PROBED(kbd)) { 426 state->kbdc = atkbdc_open(data[0]); 427 if (state->kbdc == NULL) { 428 error = ENXIO; 429 goto bad; 430 } 431 kbd_init_struct(kbd, ATKBD_DRIVER_NAME, KB_OTHER, unit, flags, 432 0, 0); 433 bcopy(&key_map, keymap, sizeof(key_map)); 434 bcopy(&accent_map, accmap, sizeof(accent_map)); 435 bcopy(fkey_tab, fkeymap, 436 imin(fkeymap_size * sizeof(fkeymap[0]), sizeof(fkey_tab))); 437 kbd_set_maps(kbd, keymap, accmap, fkeymap, fkeymap_size); 438 kbd->kb_data = (void *)state; 439 440 if (probe_keyboard(state->kbdc, flags)) { /* shouldn't happen */ 441 if (flags & KB_CONF_FAIL_IF_NO_KBD) { 442 error = ENXIO; 443 goto bad; 444 } 445 } else { 446 KBD_FOUND_DEVICE(kbd); 447 } 448 atkbd_clear_state(kbd); 449 state->ks_mode = K_XLATE; 450 /* 451 * FIXME: set the initial value for lock keys in ks_state 452 * according to the BIOS data? 453 */ 454 KBD_PROBE_DONE(kbd); 455 } 456 if (!KBD_IS_INITIALIZED(kbd) && !(flags & KB_CONF_PROBE_ONLY)) { 457 kbd->kb_config = flags & ~KB_CONF_PROBE_ONLY; 458 if (KBD_HAS_DEVICE(kbd) 459 && init_keyboard(state->kbdc, &kbd->kb_type, kbd->kb_config) 460 && (kbd->kb_config & KB_CONF_FAIL_IF_NO_KBD)) { 461 kbd_unregister(kbd); 462 error = ENXIO; 463 goto bad; 464 } 465 atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state); 466 set_typematic(kbd); 467 delay[0] = kbd->kb_delay1; 468 delay[1] = kbd->kb_delay2; 469 atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay); 470 471#ifdef EVDEV_SUPPORT 472 /* register as evdev provider on first init */ 473 if (state->ks_evdev == NULL) { 474 snprintf(phys_loc, sizeof(phys_loc), "atkbd%d", unit); 475 evdev = evdev_alloc(); 476 evdev_set_name(evdev, "AT keyboard"); 477 evdev_set_phys(evdev, phys_loc); 478 evdev_set_id(evdev, BUS_I8042, PS2_KEYBOARD_VENDOR, 479 PS2_KEYBOARD_PRODUCT, 0); 480 evdev_set_methods(evdev, kbd, &atkbd_evdev_methods); 481 evdev_support_event(evdev, EV_SYN); 482 evdev_support_event(evdev, EV_KEY); 483 evdev_support_event(evdev, EV_LED); 484 evdev_support_event(evdev, EV_REP); 485 evdev_support_all_known_keys(evdev); 486 evdev_support_led(evdev, LED_NUML); 487 evdev_support_led(evdev, LED_CAPSL); 488 evdev_support_led(evdev, LED_SCROLLL); 489 490 if (evdev_register_mtx(evdev, &Giant)) 491 evdev_free(evdev); 492 else 493 state->ks_evdev = evdev; 494 state->ks_evdev_state = 0; 495 } 496#endif 497 498 KBD_INIT_DONE(kbd); 499 } 500 if (!KBD_IS_CONFIGURED(kbd)) { 501 if (kbd_register(kbd) < 0) { 502 error = ENXIO; 503 goto bad; 504 } 505 KBD_CONFIG_DONE(kbd); 506 } 507 508 return 0; 509bad: 510 if (needfree) { 511 if (state != NULL) 512 free(state, M_DEVBUF); 513 if (keymap != NULL) 514 free(keymap, M_DEVBUF); 515 if (accmap != NULL) 516 free(accmap, M_DEVBUF); 517 if (fkeymap != NULL) 518 free(fkeymap, M_DEVBUF); 519 if (kbd != NULL) { 520 free(kbd, M_DEVBUF); 521 *kbdp = NULL; /* insure ref doesn't leak to caller */ 522 } 523 } 524 return error; 525} 526 527/* finish using this keyboard */ 528static int 529atkbd_term(keyboard_t *kbd) 530{ 531 atkbd_state_t *state = (atkbd_state_t *)kbd->kb_data; 532 533 kbd_unregister(kbd); 534 callout_drain(&state->ks_timer); 535 return 0; 536} 537 538/* keyboard interrupt routine */ 539static int 540atkbd_intr(keyboard_t *kbd, void *arg) 541{ 542 atkbd_state_t *state = (atkbd_state_t *)kbd->kb_data; 543 int delay[2]; 544 int c; 545 546 if (!KBD_HAS_DEVICE(kbd)) { 547 /* 548 * The keyboard was not detected before; 549 * it must have been reconnected! 550 */ 551 init_keyboard(state->kbdc, &kbd->kb_type, kbd->kb_config); 552 KBD_FOUND_DEVICE(kbd); 553 atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state); 554 set_typematic(kbd); 555 delay[0] = kbd->kb_delay1; 556 delay[1] = kbd->kb_delay2; 557 atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay); 558 } 559 560 if (state->ks_polling) 561 return 0; 562 563 if (KBD_IS_ACTIVE(kbd) && KBD_IS_BUSY(kbd)) { 564 /* let the callback function to process the input */ 565 (*kbd->kb_callback.kc_func)(kbd, KBDIO_KEYINPUT, 566 kbd->kb_callback.kc_arg); 567 } else { 568 /* read and discard the input; no one is waiting for input */ 569 do { 570 c = atkbd_read_char(kbd, FALSE); 571 } while (c != NOKEY); 572 } 573 return 0; 574} 575 576/* test the interface to the device */ 577static int 578atkbd_test_if(keyboard_t *kbd) 579{ 580 int error; 581 int s; 582 583 error = 0; 584 empty_both_buffers(((atkbd_state_t *)kbd->kb_data)->kbdc, 10); 585 s = spltty(); 586 if (!test_controller(((atkbd_state_t *)kbd->kb_data)->kbdc)) 587 error = EIO; 588 else if (test_kbd_port(((atkbd_state_t *)kbd->kb_data)->kbdc) != 0) 589 error = EIO; 590 splx(s); 591 592 return error; 593} 594 595/* 596 * Enable the access to the device; until this function is called, 597 * the client cannot read from the keyboard. 598 */ 599static int 600atkbd_enable(keyboard_t *kbd) 601{ 602 int s; 603 604 s = spltty(); 605 KBD_ACTIVATE(kbd); 606 splx(s); 607 return 0; 608} 609 610/* disallow the access to the device */ 611static int 612atkbd_disable(keyboard_t *kbd) 613{ 614 int s; 615 616 s = spltty(); 617 KBD_DEACTIVATE(kbd); 618 splx(s); 619 return 0; 620} 621 622/* read one byte from the keyboard if it's allowed */ 623static int 624atkbd_read(keyboard_t *kbd, int wait) 625{ 626 int c; 627 628 if (wait) 629 c = read_kbd_data(((atkbd_state_t *)kbd->kb_data)->kbdc); 630 else 631 c = read_kbd_data_no_wait(((atkbd_state_t *)kbd->kb_data)->kbdc); 632 if (c != -1) 633 ++kbd->kb_count; 634 return (KBD_IS_ACTIVE(kbd) ? c : -1); 635} 636 637/* check if data is waiting */ 638static int 639atkbd_check(keyboard_t *kbd) 640{ 641 if (!KBD_IS_ACTIVE(kbd)) 642 return FALSE; 643 return kbdc_data_ready(((atkbd_state_t *)kbd->kb_data)->kbdc); 644} 645 646/* read char from the keyboard */ 647static u_int 648atkbd_read_char(keyboard_t *kbd, int wait) 649{ 650 atkbd_state_t *state; 651 u_int action; 652 int scancode; 653 int keycode; 654 655 state = (atkbd_state_t *)kbd->kb_data; 656next_code: 657 /* do we have a composed char to return? */ 658 if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0)) { 659 action = state->ks_composed_char; 660 state->ks_composed_char = 0; 661 if (action > UCHAR_MAX) 662 return ERRKEY; 663 return action; 664 } 665 666 /* see if there is something in the keyboard port */ 667 if (wait) { 668 do { 669 scancode = read_kbd_data(state->kbdc); 670 } while (scancode == -1); 671 } else { 672 scancode = read_kbd_data_no_wait(state->kbdc); 673 if (scancode == -1) 674 return NOKEY; 675 } 676 ++kbd->kb_count; 677 678#if KBDIO_DEBUG >= 10 679 printf("atkbd_read_char(): scancode:0x%x\n", scancode); 680#endif 681 682#ifdef EVDEV_SUPPORT 683 /* push evdev event */ 684 if (evdev_rcpt_mask & EVDEV_RCPT_HW_KBD && state->ks_evdev != NULL) { 685 /* "hancha" and "han/yong" korean keys handling */ 686 if (state->ks_evdev_state == 0 && 687 (scancode == 0xF1 || scancode == 0xF2)) { 688 keycode = evdev_scancode2key(&state->ks_evdev_state, 689 scancode & 0x7F); 690 evdev_push_event(state->ks_evdev, EV_KEY, 691 (uint16_t)keycode, 1); 692 evdev_sync(state->ks_evdev); 693 } 694 695 keycode = evdev_scancode2key(&state->ks_evdev_state, 696 scancode); 697 698 if (keycode != KEY_RESERVED) { 699 evdev_push_event(state->ks_evdev, EV_KEY, 700 (uint16_t)keycode, scancode & 0x80 ? 0 : 1); 701 evdev_sync(state->ks_evdev); 702 } 703 } 704 705 if (state->ks_evdev != NULL && evdev_is_grabbed(state->ks_evdev)) 706 return (NOKEY); 707#endif 708 709 /* return the byte as is for the K_RAW mode */ 710 if (state->ks_mode == K_RAW) 711 return scancode; 712 713 /* translate the scan code into a keycode */ 714 keycode = scancode & 0x7F; 715 switch (state->ks_prefix) { 716 case 0x00: /* normal scancode */ 717 switch(scancode) { 718 case 0xB8: /* left alt (compose key) released */ 719 if (state->ks_flags & COMPOSE) { 720 state->ks_flags &= ~COMPOSE; 721 if (state->ks_composed_char > UCHAR_MAX) 722 state->ks_composed_char = 0; 723 } 724 break; 725 case 0x38: /* left alt (compose key) pressed */ 726 if (!(state->ks_flags & COMPOSE)) { 727 state->ks_flags |= COMPOSE; 728 state->ks_composed_char = 0; 729 } 730 break; 731 case 0xE0: 732 case 0xE1: 733 state->ks_prefix = scancode; 734 goto next_code; 735 } 736 break; 737 case 0xE0: /* 0xE0 prefix */ 738 state->ks_prefix = 0; 739 switch (keycode) { 740 case 0x1C: /* right enter key */ 741 keycode = 0x59; 742 break; 743 case 0x1D: /* right ctrl key */ 744 keycode = 0x5A; 745 break; 746 case 0x35: /* keypad divide key */ 747 keycode = 0x5B; 748 break; 749 case 0x37: /* print scrn key */ 750 keycode = 0x5C; 751 break; 752 case 0x38: /* right alt key (alt gr) */ 753 keycode = 0x5D; 754 break; 755 case 0x46: /* ctrl-pause/break on AT 101 (see below) */ 756 keycode = 0x68; 757 break; 758 case 0x47: /* grey home key */ 759 keycode = 0x5E; 760 break; 761 case 0x48: /* grey up arrow key */ 762 keycode = 0x5F; 763 break; 764 case 0x49: /* grey page up key */ 765 keycode = 0x60; 766 break; 767 case 0x4B: /* grey left arrow key */ 768 keycode = 0x61; 769 break; 770 case 0x4D: /* grey right arrow key */ 771 keycode = 0x62; 772 break; 773 case 0x4F: /* grey end key */ 774 keycode = 0x63; 775 break; 776 case 0x50: /* grey down arrow key */ 777 keycode = 0x64; 778 break; 779 case 0x51: /* grey page down key */ 780 keycode = 0x65; 781 break; 782 case 0x52: /* grey insert key */ 783 keycode = 0x66; 784 break; 785 case 0x53: /* grey delete key */ 786 keycode = 0x67; 787 break; 788 /* the following 3 are only used on the MS "Natural" keyboard */ 789 case 0x5b: /* left Window key */ 790 keycode = 0x69; 791 break; 792 case 0x5c: /* right Window key */ 793 keycode = 0x6a; 794 break; 795 case 0x5d: /* menu key */ 796 keycode = 0x6b; 797 break; 798 case 0x5e: /* power key */ 799 keycode = 0x6d; 800 break; 801 case 0x5f: /* sleep key */ 802 keycode = 0x6e; 803 break; 804 case 0x63: /* wake key */ 805 keycode = 0x6f; 806 break; 807 default: /* ignore everything else */ 808 goto next_code; 809 } 810 break; 811 case 0xE1: /* 0xE1 prefix */ 812 /* 813 * The pause/break key on the 101 keyboard produces: 814 * E1-1D-45 E1-9D-C5 815 * Ctrl-pause/break produces: 816 * E0-46 E0-C6 (See above.) 817 */ 818 state->ks_prefix = 0; 819 if (keycode == 0x1D) 820 state->ks_prefix = 0x1D; 821 goto next_code; 822 /* NOT REACHED */ 823 case 0x1D: /* pause / break */ 824 state->ks_prefix = 0; 825 if (keycode != 0x45) 826 goto next_code; 827 keycode = 0x68; 828 break; 829 } 830 831 if (kbd->kb_type == KB_84) { 832 switch (keycode) { 833 case 0x37: /* *(numpad)/print screen */ 834 if (state->ks_flags & SHIFTS) 835 keycode = 0x5c; /* print screen */ 836 break; 837 case 0x45: /* num lock/pause */ 838 if (state->ks_flags & CTLS) 839 keycode = 0x68; /* pause */ 840 break; 841 case 0x46: /* scroll lock/break */ 842 if (state->ks_flags & CTLS) 843 keycode = 0x6c; /* break */ 844 break; 845 } 846 } else if (kbd->kb_type == KB_101) { 847 switch (keycode) { 848 case 0x5c: /* print screen */ 849 if (state->ks_flags & ALTS) 850 keycode = 0x54; /* sysrq */ 851 break; 852 case 0x68: /* pause/break */ 853 if (state->ks_flags & CTLS) 854 keycode = 0x6c; /* break */ 855 break; 856 } 857 } 858 859 /* return the key code in the K_CODE mode */ 860 if (state->ks_mode == K_CODE) 861 return (keycode | (scancode & 0x80)); 862 863 /* compose a character code */ 864 if (state->ks_flags & COMPOSE) { 865 switch (keycode | (scancode & 0x80)) { 866 /* key pressed, process it */ 867 case 0x47: case 0x48: case 0x49: /* keypad 7,8,9 */ 868 state->ks_composed_char *= 10; 869 state->ks_composed_char += keycode - 0x40; 870 if (state->ks_composed_char > UCHAR_MAX) 871 return ERRKEY; 872 goto next_code; 873 case 0x4B: case 0x4C: case 0x4D: /* keypad 4,5,6 */ 874 state->ks_composed_char *= 10; 875 state->ks_composed_char += keycode - 0x47; 876 if (state->ks_composed_char > UCHAR_MAX) 877 return ERRKEY; 878 goto next_code; 879 case 0x4F: case 0x50: case 0x51: /* keypad 1,2,3 */ 880 state->ks_composed_char *= 10; 881 state->ks_composed_char += keycode - 0x4E; 882 if (state->ks_composed_char > UCHAR_MAX) 883 return ERRKEY; 884 goto next_code; 885 case 0x52: /* keypad 0 */ 886 state->ks_composed_char *= 10; 887 if (state->ks_composed_char > UCHAR_MAX) 888 return ERRKEY; 889 goto next_code; 890 891 /* key released, no interest here */ 892 case 0xC7: case 0xC8: case 0xC9: /* keypad 7,8,9 */ 893 case 0xCB: case 0xCC: case 0xCD: /* keypad 4,5,6 */ 894 case 0xCF: case 0xD0: case 0xD1: /* keypad 1,2,3 */ 895 case 0xD2: /* keypad 0 */ 896 goto next_code; 897 898 case 0x38: /* left alt key */ 899 break; 900 901 default: 902 if (state->ks_composed_char > 0) { 903 state->ks_flags &= ~COMPOSE; 904 state->ks_composed_char = 0; 905 return ERRKEY; 906 } 907 break; 908 } 909 } 910 911 /* keycode to key action */ 912 action = genkbd_keyaction(kbd, keycode, scancode & 0x80, 913 &state->ks_state, &state->ks_accents); 914 if (action == NOKEY) 915 goto next_code; 916 else 917 return action; 918} 919 920/* check if char is waiting */ 921static int 922atkbd_check_char(keyboard_t *kbd) 923{ 924 atkbd_state_t *state; 925 926 if (!KBD_IS_ACTIVE(kbd)) 927 return FALSE; 928 state = (atkbd_state_t *)kbd->kb_data; 929 if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0)) 930 return TRUE; 931 return kbdc_data_ready(state->kbdc); 932} 933 934/* some useful control functions */ 935static int 936atkbd_ioctl(keyboard_t *kbd, u_long cmd, caddr_t arg) 937{ 938 /* translate LED_XXX bits into the device specific bits */ 939 static u_char ledmap[8] = { 940 0, 4, 2, 6, 1, 5, 3, 7, 941 }; 942 atkbd_state_t *state = kbd->kb_data; 943 int error; 944 int s; 945 int i; 946#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 947 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 948 int ival; 949#endif 950 951 s = spltty(); 952 switch (cmd) { 953 case KDGKBMODE: /* get keyboard mode */ 954 *(int *)arg = state->ks_mode; 955 break; 956#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 957 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 958 case _IO('K', 7): 959 ival = IOCPARM_IVAL(arg); 960 arg = (caddr_t)&ival; 961 /* FALLTHROUGH */ 962#endif 963 case KDSKBMODE: /* set keyboard mode */ 964 switch (*(int *)arg) { 965 case K_XLATE: 966 if (state->ks_mode != K_XLATE) { 967 /* make lock key state and LED state match */ 968 state->ks_state &= ~LOCK_MASK; 969 state->ks_state |= KBD_LED_VAL(kbd); 970 } 971 /* FALLTHROUGH */ 972 case K_RAW: 973 case K_CODE: 974 if (state->ks_mode != *(int *)arg) { 975 atkbd_clear_state(kbd); 976 state->ks_mode = *(int *)arg; 977 } 978 break; 979 default: 980 splx(s); 981 return EINVAL; 982 } 983 break; 984 985 case KDGETLED: /* get keyboard LED */ 986 *(int *)arg = KBD_LED_VAL(kbd); 987 break; 988#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 989 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 990 case _IO('K', 66): 991 ival = IOCPARM_IVAL(arg); 992 arg = (caddr_t)&ival; 993 /* FALLTHROUGH */ 994#endif 995 case KDSETLED: /* set keyboard LED */ 996 /* NOTE: lock key state in ks_state won't be changed */ 997 if (*(int *)arg & ~LOCK_MASK) { 998 splx(s); 999 return EINVAL; 1000 } 1001 i = *(int *)arg; 1002 /* replace CAPS LED with ALTGR LED for ALTGR keyboards */ 1003 if (state->ks_mode == K_XLATE && 1004 kbd->kb_keymap->n_keys > ALTGR_OFFSET) { 1005 if (i & ALKED) 1006 i |= CLKED; 1007 else 1008 i &= ~CLKED; 1009 } 1010 if (KBD_HAS_DEVICE(kbd)) { 1011 error = write_kbd(state->kbdc, KBDC_SET_LEDS, 1012 ledmap[i & LED_MASK]); 1013 if (error) { 1014 splx(s); 1015 return error; 1016 } 1017 } 1018#ifdef EVDEV_SUPPORT 1019 /* push LED states to evdev */ 1020 if (state->ks_evdev != NULL && 1021 evdev_rcpt_mask & EVDEV_RCPT_HW_KBD) 1022 evdev_push_leds(state->ks_evdev, *(int *)arg); 1023#endif 1024 KBD_LED_VAL(kbd) = *(int *)arg; 1025 break; 1026 1027 case KDGKBSTATE: /* get lock key state */ 1028 *(int *)arg = state->ks_state & LOCK_MASK; 1029 break; 1030#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 1031 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 1032 case _IO('K', 20): 1033 ival = IOCPARM_IVAL(arg); 1034 arg = (caddr_t)&ival; 1035 /* FALLTHROUGH */ 1036#endif 1037 case KDSKBSTATE: /* set lock key state */ 1038 if (*(int *)arg & ~LOCK_MASK) { 1039 splx(s); 1040 return EINVAL; 1041 } 1042 state->ks_state &= ~LOCK_MASK; 1043 state->ks_state |= *(int *)arg; 1044 splx(s); 1045 /* set LEDs and quit */ 1046 return atkbd_ioctl(kbd, KDSETLED, arg); 1047 1048 case KDSETREPEAT: /* set keyboard repeat rate (new interface) */ 1049 splx(s); 1050 if (!KBD_HAS_DEVICE(kbd)) 1051 return 0; 1052 i = typematic(((int *)arg)[0], ((int *)arg)[1]); 1053 error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, i); 1054 if (error == 0) { 1055 kbd->kb_delay1 = typematic_delay(i); 1056 kbd->kb_delay2 = typematic_rate(i); 1057#ifdef EVDEV_SUPPORT 1058 if (state->ks_evdev != NULL && 1059 evdev_rcpt_mask & EVDEV_RCPT_HW_KBD) 1060 evdev_push_repeats(state->ks_evdev, kbd); 1061#endif 1062 } 1063 return error; 1064 1065#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 1066 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 1067 case _IO('K', 67): 1068 ival = IOCPARM_IVAL(arg); 1069 arg = (caddr_t)&ival; 1070 /* FALLTHROUGH */ 1071#endif 1072 case KDSETRAD: /* set keyboard repeat rate (old interface) */ 1073 splx(s); 1074 if (!KBD_HAS_DEVICE(kbd)) 1075 return 0; 1076 error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, *(int *)arg); 1077 if (error == 0) { 1078 kbd->kb_delay1 = typematic_delay(*(int *)arg); 1079 kbd->kb_delay2 = typematic_rate(*(int *)arg); 1080#ifdef EVDEV_SUPPORT 1081 if (state->ks_evdev != NULL && 1082 evdev_rcpt_mask & EVDEV_RCPT_HW_KBD) 1083 evdev_push_repeats(state->ks_evdev, kbd); 1084#endif 1085 } 1086 return error; 1087 1088 case PIO_KEYMAP: /* set keyboard translation table */ 1089 case PIO_KEYMAPENT: /* set keyboard translation table entry */ 1090 case PIO_DEADKEYMAP: /* set accent key translation table */ 1091#ifdef COMPAT_FREEBSD13 1092 case OPIO_KEYMAP: /* set keyboard translation table (compat) */ 1093 case OPIO_DEADKEYMAP: /* set accent key translation table (compat) */ 1094#endif /* COMPAT_FREEBSD13 */ 1095 state->ks_accents = 0; 1096 /* FALLTHROUGH */ 1097 default: 1098 splx(s); 1099 return genkbd_commonioctl(kbd, cmd, arg); 1100 } 1101 1102 splx(s); 1103 return 0; 1104} 1105 1106/* lock the access to the keyboard */ 1107static int 1108atkbd_lock(keyboard_t *kbd, int lock) 1109{ 1110 return kbdc_lock(((atkbd_state_t *)kbd->kb_data)->kbdc, lock); 1111} 1112 1113/* clear the internal state of the keyboard */ 1114static void 1115atkbd_clear_state(keyboard_t *kbd) 1116{ 1117 atkbd_state_t *state; 1118 1119 state = (atkbd_state_t *)kbd->kb_data; 1120 state->ks_flags = 0; 1121 state->ks_polling = 0; 1122 state->ks_state &= LOCK_MASK; /* preserve locking key state */ 1123 state->ks_accents = 0; 1124 state->ks_composed_char = 0; 1125#if 0 1126 state->ks_prefix = 0; /* XXX */ 1127#endif 1128} 1129 1130/* save the internal state */ 1131static int 1132atkbd_get_state(keyboard_t *kbd, void *buf, size_t len) 1133{ 1134 if (len == 0) 1135 return sizeof(atkbd_state_t); 1136 if (len < sizeof(atkbd_state_t)) 1137 return -1; 1138 bcopy(kbd->kb_data, buf, sizeof(atkbd_state_t)); 1139 return 0; 1140} 1141 1142/* set the internal state */ 1143static int 1144atkbd_set_state(keyboard_t *kbd, void *buf, size_t len) 1145{ 1146 if (len < sizeof(atkbd_state_t)) 1147 return ENOMEM; 1148 if (((atkbd_state_t *)kbd->kb_data)->kbdc 1149 != ((atkbd_state_t *)buf)->kbdc) 1150 return ENOMEM; 1151 bcopy(buf, kbd->kb_data, sizeof(atkbd_state_t)); 1152 return 0; 1153} 1154 1155static int 1156atkbd_poll(keyboard_t *kbd, int on) 1157{ 1158 atkbd_state_t *state; 1159 int s; 1160 1161 state = (atkbd_state_t *)kbd->kb_data; 1162 s = spltty(); 1163 if (on) 1164 ++state->ks_polling; 1165 else 1166 --state->ks_polling; 1167 splx(s); 1168 return 0; 1169} 1170 1171static int 1172atkbd_reset(KBDC kbdc, int flags, int c) 1173{ 1174 /* reset keyboard hardware */ 1175 if (!(flags & KB_CONF_NO_RESET) && !reset_kbd(kbdc)) { 1176 /* 1177 * KEYBOARD ERROR 1178 * Keyboard reset may fail either because the keyboard 1179 * doen't exist, or because the keyboard doesn't pass 1180 * the self-test, or the keyboard controller on the 1181 * motherboard and the keyboard somehow fail to shake hands. 1182 * It is just possible, particularly in the last case, 1183 * that the keyboard controller may be left in a hung state. 1184 * test_controller() and test_kbd_port() appear to bring 1185 * the keyboard controller back (I don't know why and how, 1186 * though.) 1187 */ 1188 empty_both_buffers(kbdc, 10); 1189 test_controller(kbdc); 1190 test_kbd_port(kbdc); 1191 /* 1192 * We could disable the keyboard port and interrupt... but, 1193 * the keyboard may still exist (see above). 1194 */ 1195 set_controller_command_byte(kbdc, 1196 ALLOW_DISABLE_KBD(kbdc) ? 0xff : KBD_KBD_CONTROL_BITS, c); 1197 if (bootverbose) 1198 printf("atkbd: failed to reset the keyboard.\n"); 1199 return (EIO); 1200 } 1201 return (0); 1202} 1203 1204#ifdef EVDEV_SUPPORT 1205static void 1206atkbd_ev_event(struct evdev_dev *evdev, uint16_t type, uint16_t code, 1207 int32_t value) 1208{ 1209 keyboard_t *kbd = evdev_get_softc(evdev); 1210 1211 if (evdev_rcpt_mask & EVDEV_RCPT_HW_KBD && 1212 (type == EV_LED || type == EV_REP)) { 1213 mtx_lock(&Giant); 1214 kbd_ev_event(kbd, type, code, value); 1215 mtx_unlock(&Giant); 1216 } 1217} 1218#endif 1219 1220/* local functions */ 1221 1222static int 1223set_typematic(keyboard_t *kbd) 1224{ 1225 int val, error; 1226 atkbd_state_t *state = kbd->kb_data; 1227 1228 val = typematic(DEFAULT_DELAY, DEFAULT_RATE); 1229 error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, val); 1230 if (error == 0) { 1231 kbd->kb_delay1 = typematic_delay(val); 1232 kbd->kb_delay2 = typematic_rate(val); 1233 } 1234 1235 return (error); 1236} 1237 1238static int 1239setup_kbd_port(KBDC kbdc, int port, int intr) 1240{ 1241 if (!set_controller_command_byte(kbdc, 1242 KBD_KBD_CONTROL_BITS, 1243 ((port) ? KBD_ENABLE_KBD_PORT : KBD_DISABLE_KBD_PORT) 1244 | ((intr) ? KBD_ENABLE_KBD_INT : KBD_DISABLE_KBD_INT))) 1245 return 1; 1246 return 0; 1247} 1248 1249static int 1250get_kbd_echo(KBDC kbdc) 1251{ 1252 /* enable the keyboard port, but disable the keyboard intr. */ 1253 if (setup_kbd_port(kbdc, TRUE, FALSE)) 1254 /* CONTROLLER ERROR: there is very little we can do... */ 1255 return ENXIO; 1256 1257 /* see if something is present */ 1258 write_kbd_command(kbdc, KBDC_ECHO); 1259 if (read_kbd_data(kbdc) != KBD_ECHO) { 1260 empty_both_buffers(kbdc, 10); 1261 test_controller(kbdc); 1262 test_kbd_port(kbdc); 1263 return ENXIO; 1264 } 1265 1266 /* enable the keyboard port and intr. */ 1267 if (setup_kbd_port(kbdc, TRUE, TRUE)) { 1268 /* 1269 * CONTROLLER ERROR 1270 * This is serious; the keyboard intr is left disabled! 1271 */ 1272 return ENXIO; 1273 } 1274 1275 return 0; 1276} 1277 1278static int 1279probe_keyboard(KBDC kbdc, int flags) 1280{ 1281 /* 1282 * Don't try to print anything in this function. The low-level 1283 * console may not have been initialized yet... 1284 */ 1285 int err; 1286 int c; 1287 int m; 1288 1289 if (!kbdc_lock(kbdc, TRUE)) { 1290 /* driver error? */ 1291 return ENXIO; 1292 } 1293 1294 /* temporarily block data transmission from the keyboard */ 1295 write_controller_command(kbdc, KBDC_DISABLE_KBD_PORT); 1296 1297 /* flush any noise in the buffer */ 1298 empty_both_buffers(kbdc, 100); 1299 1300 /* save the current keyboard controller command byte */ 1301 m = kbdc_get_device_mask(kbdc) & ~KBD_KBD_CONTROL_BITS; 1302 c = get_controller_command_byte(kbdc); 1303 if (c == -1) { 1304 /* CONTROLLER ERROR */ 1305 kbdc_set_device_mask(kbdc, m); 1306 kbdc_lock(kbdc, FALSE); 1307 return ENXIO; 1308 } 1309 1310 /* 1311 * The keyboard may have been screwed up by the boot block. 1312 * We may just be able to recover from error by testing the controller 1313 * and the keyboard port. The controller command byte needs to be 1314 * saved before this recovery operation, as some controllers seem 1315 * to set the command byte to particular values. 1316 */ 1317 test_controller(kbdc); 1318 if (!(flags & KB_CONF_NO_PROBE_TEST)) 1319 test_kbd_port(kbdc); 1320 1321 err = get_kbd_echo(kbdc); 1322 1323 /* 1324 * Even if the keyboard doesn't seem to be present (err != 0), 1325 * we shall enable the keyboard port and interrupt so that 1326 * the driver will be operable when the keyboard is attached 1327 * to the system later. It is NOT recommended to hot-plug 1328 * the AT keyboard, but many people do so... 1329 */ 1330 kbdc_set_device_mask(kbdc, m | KBD_KBD_CONTROL_BITS); 1331 setup_kbd_port(kbdc, TRUE, TRUE); 1332#if 0 1333 if (err == 0) { 1334 kbdc_set_device_mask(kbdc, m | KBD_KBD_CONTROL_BITS); 1335 } else { 1336 /* try to restore the command byte as before */ 1337 set_controller_command_byte(kbdc, 1338 ALLOW_DISABLE_KBD(kbdc) ? 0xff : KBD_KBD_CONTROL_BITS, c); 1339 kbdc_set_device_mask(kbdc, m); 1340 } 1341#endif 1342 1343 kbdc_lock(kbdc, FALSE); 1344 return (HAS_QUIRK(kbdc, KBDC_QUIRK_IGNORE_PROBE_RESULT) ? 0 : err); 1345} 1346 1347static int 1348init_keyboard(KBDC kbdc, int *type, int flags) 1349{ 1350 int codeset; 1351 int id; 1352 int c; 1353 1354 if (!kbdc_lock(kbdc, TRUE)) { 1355 /* driver error? */ 1356 return EIO; 1357 } 1358 1359 /* temporarily block data transmission from the keyboard */ 1360 write_controller_command(kbdc, KBDC_DISABLE_KBD_PORT); 1361 1362 /* save the current controller command byte */ 1363 empty_both_buffers(kbdc, 200); 1364 c = get_controller_command_byte(kbdc); 1365 if (c == -1) { 1366 /* CONTROLLER ERROR */ 1367 kbdc_lock(kbdc, FALSE); 1368 printf("atkbd: unable to get the current command byte value.\n"); 1369 return EIO; 1370 } 1371 if (bootverbose) 1372 printf("atkbd: the current kbd controller command byte %04x\n", 1373 c); 1374#if 0 1375 /* override the keyboard lock switch */ 1376 c |= KBD_OVERRIDE_KBD_LOCK; 1377#endif 1378 1379 /* enable the keyboard port, but disable the keyboard intr. */ 1380 if (setup_kbd_port(kbdc, TRUE, FALSE)) { 1381 /* CONTROLLER ERROR: there is very little we can do... */ 1382 printf("atkbd: unable to set the command byte.\n"); 1383 kbdc_lock(kbdc, FALSE); 1384 return EIO; 1385 } 1386 1387 if (HAS_QUIRK(kbdc, KBDC_QUIRK_RESET_AFTER_PROBE) && 1388 atkbd_reset(kbdc, flags, c)) { 1389 kbdc_lock(kbdc, FALSE); 1390 return EIO; 1391 } 1392 1393 /* 1394 * Check if we have an XT keyboard before we attempt to reset it. 1395 * The procedure assumes that the keyboard and the controller have 1396 * been set up properly by BIOS and have not been messed up 1397 * during the boot process. 1398 */ 1399 codeset = -1; 1400 if (flags & KB_CONF_ALT_SCANCODESET) 1401 /* the user says there is a XT keyboard */ 1402 codeset = 1; 1403#ifdef KBD_DETECT_XT_KEYBOARD 1404 else if ((c & KBD_TRANSLATION) == 0) { 1405 /* SET_SCANCODE_SET is not always supported; ignore error */ 1406 if (send_kbd_command_and_data(kbdc, KBDC_SET_SCANCODE_SET, 0) 1407 == KBD_ACK) 1408 codeset = read_kbd_data(kbdc); 1409 } 1410 if (bootverbose) 1411 printf("atkbd: scancode set %d\n", codeset); 1412#endif /* KBD_DETECT_XT_KEYBOARD */ 1413 1414 *type = KB_OTHER; 1415 id = get_kbd_id(kbdc); 1416 switch(id) { 1417 case 0x41ab: /* 101/102/... Enhanced */ 1418 case 0x83ab: /* ditto */ 1419 case 0x54ab: /* SpaceSaver */ 1420 case 0x84ab: /* ditto */ 1421#if 0 1422 case 0x90ab: /* 'G' */ 1423 case 0x91ab: /* 'P' */ 1424 case 0x92ab: /* 'A' */ 1425#endif 1426 *type = KB_101; 1427 break; 1428 case -1: /* AT 84 keyboard doesn't return ID */ 1429 *type = KB_84; 1430 break; 1431 default: 1432 break; 1433 } 1434 if (bootverbose) 1435 printf("atkbd: keyboard ID 0x%x (%d)\n", id, *type); 1436 1437 if (!HAS_QUIRK(kbdc, KBDC_QUIRK_RESET_AFTER_PROBE) && 1438 atkbd_reset(kbdc, flags, c)) { 1439 kbdc_lock(kbdc, FALSE); 1440 return EIO; 1441 } 1442 1443 /* 1444 * Allow us to set the XT_KEYBD flag so that keyboards 1445 * such as those on the IBM ThinkPad laptop computers can be used 1446 * with the standard console driver. 1447 */ 1448 if (codeset == 1) { 1449 if (send_kbd_command_and_data(kbdc, 1450 KBDC_SET_SCANCODE_SET, codeset) == KBD_ACK) { 1451 /* XT kbd doesn't need scan code translation */ 1452 c &= ~KBD_TRANSLATION; 1453 } else { 1454 /* 1455 * KEYBOARD ERROR 1456 * The XT kbd isn't usable unless the proper scan 1457 * code set is selected. 1458 */ 1459 set_controller_command_byte(kbdc, ALLOW_DISABLE_KBD(kbdc) 1460 ? 0xff : KBD_KBD_CONTROL_BITS, c); 1461 kbdc_lock(kbdc, FALSE); 1462 printf("atkbd: unable to set the XT keyboard mode.\n"); 1463 return EIO; 1464 } 1465 } 1466 1467 /* 1468 * Some keyboards require a SETLEDS command to be sent after 1469 * the reset command before they will send keystrokes to us 1470 */ 1471 if (HAS_QUIRK(kbdc, KBDC_QUIRK_SETLEDS_ON_INIT) && 1472 send_kbd_command_and_data(kbdc, KBDC_SET_LEDS, 0) != KBD_ACK) { 1473 printf("atkbd: setleds failed\n"); 1474 } 1475 if (!ALLOW_DISABLE_KBD(kbdc)) 1476 send_kbd_command(kbdc, KBDC_ENABLE_KBD); 1477 1478 /* enable the keyboard port and intr. */ 1479 if (!set_controller_command_byte(kbdc, 1480 KBD_KBD_CONTROL_BITS | KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK, 1481 (c & (KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK)) 1482 | KBD_ENABLE_KBD_PORT | KBD_ENABLE_KBD_INT)) { 1483 /* 1484 * CONTROLLER ERROR 1485 * This is serious; we are left with the disabled 1486 * keyboard intr. 1487 */ 1488 set_controller_command_byte(kbdc, ALLOW_DISABLE_KBD(kbdc) 1489 ? 0xff : (KBD_KBD_CONTROL_BITS | KBD_TRANSLATION | 1490 KBD_OVERRIDE_KBD_LOCK), c); 1491 kbdc_lock(kbdc, FALSE); 1492 printf("atkbd: unable to enable the keyboard port and intr.\n"); 1493 return EIO; 1494 } 1495 1496 kbdc_lock(kbdc, FALSE); 1497 return 0; 1498} 1499 1500static int 1501write_kbd(KBDC kbdc, int command, int data) 1502{ 1503 int s; 1504 1505 /* prevent the timeout routine from polling the keyboard */ 1506 if (!kbdc_lock(kbdc, TRUE)) 1507 return EBUSY; 1508 1509 /* disable the keyboard and mouse interrupt */ 1510 s = spltty(); 1511#if 0 1512 c = get_controller_command_byte(kbdc); 1513 if ((c == -1) 1514 || !set_controller_command_byte(kbdc, 1515 kbdc_get_device_mask(kbdc), 1516 KBD_DISABLE_KBD_PORT | KBD_DISABLE_KBD_INT 1517 | KBD_DISABLE_AUX_PORT | KBD_DISABLE_AUX_INT)) { 1518 /* CONTROLLER ERROR */ 1519 kbdc_lock(kbdc, FALSE); 1520 splx(s); 1521 return EIO; 1522 } 1523 /* 1524 * Now that the keyboard controller is told not to generate 1525 * the keyboard and mouse interrupts, call `splx()' to allow 1526 * the other tty interrupts. The clock interrupt may also occur, 1527 * but the timeout routine (`scrn_timer()') will be blocked 1528 * by the lock flag set via `kbdc_lock()' 1529 */ 1530 splx(s); 1531#endif 1532 if (send_kbd_command_and_data(kbdc, command, data) != KBD_ACK) 1533 send_kbd_command(kbdc, KBDC_ENABLE_KBD); 1534#if 0 1535 /* restore the interrupts */ 1536 if (!set_controller_command_byte(kbdc, kbdc_get_device_mask(kbdc), 1537 c & (KBD_KBD_CONTROL_BITS | KBD_AUX_CONTROL_BITS))) { 1538 /* CONTROLLER ERROR */ 1539 } 1540#else 1541 splx(s); 1542#endif 1543 kbdc_lock(kbdc, FALSE); 1544 1545 return 0; 1546} 1547 1548static int 1549get_kbd_id(KBDC kbdc) 1550{ 1551 int id1, id2; 1552 1553 empty_both_buffers(kbdc, 10); 1554 id1 = id2 = -1; 1555 if (send_kbd_command(kbdc, KBDC_SEND_DEV_ID) != KBD_ACK) 1556 return -1; 1557 1558 DELAY(10000); /* 10 msec delay */ 1559 id1 = read_kbd_data(kbdc); 1560 if (id1 != -1) 1561 id2 = read_kbd_data(kbdc); 1562 1563 if ((id1 == -1) || (id2 == -1)) { 1564 empty_both_buffers(kbdc, 10); 1565 test_controller(kbdc); 1566 test_kbd_port(kbdc); 1567 return -1; 1568 } 1569 return ((id2 << 8) | id1); 1570} 1571 1572static int 1573typematic_delay(int i) 1574{ 1575 return (kbdelays[(i >> 5) & 3]); 1576} 1577 1578static int 1579typematic_rate(int i) 1580{ 1581 return (kbrates[i & 0x1f]); 1582} 1583 1584static int 1585typematic(int delay, int rate) 1586{ 1587 int value; 1588 int i; 1589 1590 for (i = nitems(kbdelays) - 1; i > 0; --i) { 1591 if (delay >= kbdelays[i]) 1592 break; 1593 } 1594 value = i << 5; 1595 for (i = nitems(kbrates) - 1; i > 0; --i) { 1596 if (rate >= kbrates[i]) 1597 break; 1598 } 1599 value |= i; 1600 return value; 1601} 1602