Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]
FreeBSD/Linux Kernel Cross Reference
sys/dev/atkbdc/atkbd.c
Version:
- FREEBSD - FREEBSD-13-STABLE - FREEBSD-13-0 - FREEBSD-12-STABLE - FREEBSD-12-0 - FREEBSD-11-STABLE - FREEBSD-11-0 - FREEBSD-10-STABLE - FREEBSD-10-0 - FREEBSD-9-STABLE - FREEBSD-9-0 - FREEBSD-8-STABLE - FREEBSD-8-0 - FREEBSD-7-STABLE - FREEBSD-7-0 - FREEBSD-6-STABLE - FREEBSD-6-0 - FREEBSD-5-STABLE - FREEBSD-5-0 - FREEBSD-4-STABLE - FREEBSD-3-STABLE - FREEBSD22 - l41 - OPENBSD - linux-2.6 - MK84 - PLAN9 - xnu-8792
SearchContext: - none - 3 - 10
SearchContext: - none - 3 - 10
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 59 typedef 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 76 static void atkbd_timeout(void *arg); 77 static void atkbd_shutdown_final(void *v); 78 static int atkbd_reset(KBDC kbdc, int flags, int c); 79 80 #define HAS_QUIRK(p, q) (((atkbdc_softc_t *)(p))->quirks & q) 81 #define ALLOW_DISABLE_KBD(kbdc) !HAS_QUIRK(kbdc, KBDC_QUIRK_KEEP_ACTIVATED) 82 83 #define DEFAULT_DELAY 0x1 /* 500ms */ 84 #define DEFAULT_RATE 0x10 /* 14Hz */ 85 86 #ifdef EVDEV_SUPPORT 87 #define PS2_KEYBOARD_VENDOR 1 88 #define PS2_KEYBOARD_PRODUCT 1 89 #endif 90 91 int 92 atkbd_probe_unit(device_t dev, int irq, int flags) 93 { 94 keyboard_switch_t *sw; 95 int args[2]; 96 int error; 97 98 sw = kbd_get_switch(ATKBD_DRIVER_NAME); 99 if (sw == NULL) 100 return ENXIO; 101 102 args[0] = device_get_unit(device_get_parent(dev)); 103 args[1] = irq; 104 error = (*sw->probe)(device_get_unit(dev), args, flags); 105 if (error) 106 return error; 107 return 0; 108 } 109 110 int 111 atkbd_attach_unit(device_t dev, keyboard_t **kbd, int irq, int flags) 112 { 113 keyboard_switch_t *sw; 114 atkbd_state_t *state; 115 int args[2]; 116 int error; 117 int unit; 118 119 sw = kbd_get_switch(ATKBD_DRIVER_NAME); 120 if (sw == NULL) 121 return ENXIO; 122 123 /* reset, initialize and enable the device */ 124 unit = device_get_unit(dev); 125 args[0] = device_get_unit(device_get_parent(dev)); 126 args[1] = irq; 127 *kbd = NULL; 128 error = (*sw->probe)(unit, args, flags); 129 if (error) 130 return error; 131 error = (*sw->init)(unit, kbd, args, flags); 132 if (error) 133 return error; 134 (*sw->enable)(*kbd); 135 136 #ifdef KBD_INSTALL_CDEV 137 /* attach a virtual keyboard cdev */ 138 error = kbd_attach(*kbd); 139 if (error) 140 return error; 141 #endif 142 143 /* 144 * This is a kludge to compensate for lost keyboard interrupts. 145 * A similar code used to be in syscons. See below. XXX 146 */ 147 state = (atkbd_state_t *)(*kbd)->kb_data; 148 callout_init(&state->ks_timer, 0); 149 atkbd_timeout(*kbd); 150 151 if (bootverbose) 152 (*sw->diag)(*kbd, bootverbose); 153 154 EVENTHANDLER_REGISTER(shutdown_final, atkbd_shutdown_final, *kbd, 155 SHUTDOWN_PRI_DEFAULT); 156 157 return 0; 158 } 159 160 static void 161 atkbd_timeout(void *arg) 162 { 163 atkbd_state_t *state; 164 keyboard_t *kbd; 165 int s; 166 167 /* 168 * The original text of the following comments are extracted 169 * from syscons.c (1.287) 170 * 171 * With release 2.1 of the Xaccel server, the keyboard is left 172 * hanging pretty often. Apparently an interrupt from the 173 * keyboard is lost, and I don't know why (yet). 174 * This ugly hack calls the low-level interrupt routine if input 175 * is ready for the keyboard and conveniently hides the problem. XXX 176 * 177 * Try removing anything stuck in the keyboard controller; whether 178 * it's a keyboard scan code or mouse data. The low-level 179 * interrupt routine doesn't read the mouse data directly, 180 * but the keyboard controller driver will, as a side effect. 181 */ 182 /* 183 * And here is bde's original comment about this: 184 * 185 * This is necessary to handle edge triggered interrupts - if we 186 * returned when our IRQ is high due to unserviced input, then there 187 * would be no more keyboard IRQs until the keyboard is reset by 188 * external powers. 189 * 190 * The keyboard apparently unwedges the irq in most cases. 191 */ 192 s = spltty(); 193 kbd = (keyboard_t *)arg; 194 if (kbdd_lock(kbd, TRUE)) { 195 /* 196 * We have seen the lock flag is not set. Let's reset 197 * the flag early, otherwise the LED update routine fails 198 * which may want the lock during the interrupt routine. 199 */ 200 kbdd_lock(kbd, FALSE); 201 if (kbdd_check_char(kbd)) 202 kbdd_intr(kbd, NULL); 203 } 204 splx(s); 205 state = (atkbd_state_t *)kbd->kb_data; 206 callout_reset(&state->ks_timer, hz / 10, atkbd_timeout, arg); 207 } 208 209 /* LOW-LEVEL */ 210 211 #define ATKBD_DEFAULT 0 212 213 /* keyboard driver declaration */ 214 static int atkbd_configure(int flags); 215 static kbd_probe_t atkbd_probe; 216 static kbd_init_t atkbd_init; 217 static kbd_term_t atkbd_term; 218 static kbd_intr_t atkbd_intr; 219 static kbd_test_if_t atkbd_test_if; 220 static kbd_enable_t atkbd_enable; 221 static kbd_disable_t atkbd_disable; 222 static kbd_read_t atkbd_read; 223 static kbd_check_t atkbd_check; 224 static kbd_read_char_t atkbd_read_char; 225 static kbd_check_char_t atkbd_check_char; 226 static kbd_ioctl_t atkbd_ioctl; 227 static kbd_lock_t atkbd_lock; 228 static kbd_clear_state_t atkbd_clear_state; 229 static kbd_get_state_t atkbd_get_state; 230 static kbd_set_state_t atkbd_set_state; 231 static kbd_poll_mode_t atkbd_poll; 232 233 static keyboard_switch_t atkbdsw = { 234 .probe = atkbd_probe, 235 .init = atkbd_init, 236 .term = atkbd_term, 237 .intr = atkbd_intr, 238 .test_if = atkbd_test_if, 239 .enable = atkbd_enable, 240 .disable = atkbd_disable, 241 .read = atkbd_read, 242 .check = atkbd_check, 243 .read_char = atkbd_read_char, 244 .check_char = atkbd_check_char, 245 .ioctl = atkbd_ioctl, 246 .lock = atkbd_lock, 247 .clear_state = atkbd_clear_state, 248 .get_state = atkbd_get_state, 249 .set_state = atkbd_set_state, 250 .poll = atkbd_poll, 251 }; 252 253 KEYBOARD_DRIVER(atkbd, atkbdsw, atkbd_configure); 254 255 /* local functions */ 256 static int set_typematic(keyboard_t *kbd); 257 static int setup_kbd_port(KBDC kbdc, int port, int intr); 258 static int get_kbd_echo(KBDC kbdc); 259 static int probe_keyboard(KBDC kbdc, int flags); 260 static int init_keyboard(KBDC kbdc, int *type, int flags); 261 static int write_kbd(KBDC kbdc, int command, int data); 262 static int get_kbd_id(KBDC kbdc); 263 static int typematic(int delay, int rate); 264 static int typematic_delay(int delay); 265 static int typematic_rate(int rate); 266 267 #ifdef EVDEV_SUPPORT 268 static evdev_event_t atkbd_ev_event; 269 270 static const struct evdev_methods atkbd_evdev_methods = { 271 .ev_event = atkbd_ev_event, 272 }; 273 #endif 274 275 /* local variables */ 276 277 /* the initial key map, accent map and fkey strings */ 278 #ifdef ATKBD_DFLT_KEYMAP 279 #define KBD_DFLT_KEYMAP 280 #include "atkbdmap.h" 281 #endif 282 #include <dev/kbd/kbdtables.h> 283 284 /* structures for the default keyboard */ 285 static keyboard_t default_kbd; 286 static atkbd_state_t default_kbd_state; 287 static keymap_t default_keymap; 288 static accentmap_t default_accentmap; 289 static fkeytab_t default_fkeytab[NUM_FKEYS]; 290 291 /* 292 * The back door to the keyboard driver! 293 * This function is called by the console driver, via the kbdio module, 294 * to tickle keyboard drivers when the low-level console is being initialized. 295 * Almost nothing in the kernel has been initialied yet. Try to probe 296 * keyboards if possible. 297 * NOTE: because of the way the low-level console is initialized, this routine 298 * may be called more than once!! 299 */ 300 static int 301 atkbd_configure(int flags) 302 { 303 keyboard_t *kbd; 304 int arg[2]; 305 int i; 306 307 /* 308 * Probe the keyboard controller, if not present or if the driver 309 * is disabled, unregister the keyboard if any. 310 */ 311 if (atkbdc_configure() != 0 || 312 resource_disabled("atkbd", ATKBD_DEFAULT)) { 313 i = kbd_find_keyboard(ATKBD_DRIVER_NAME, ATKBD_DEFAULT); 314 if (i >= 0) { 315 kbd = kbd_get_keyboard(i); 316 kbd_unregister(kbd); 317 kbd->kb_flags &= ~KB_REGISTERED; 318 } 319 return 0; 320 } 321 322 /* XXX: a kludge to obtain the device configuration flags */ 323 if (resource_int_value("atkbd", ATKBD_DEFAULT, "flags", &i) == 0) 324 flags |= i; 325 326 /* probe the default keyboard */ 327 arg[0] = -1; 328 arg[1] = -1; 329 kbd = NULL; 330 if (atkbd_probe(ATKBD_DEFAULT, arg, flags)) 331 return 0; 332 if (atkbd_init(ATKBD_DEFAULT, &kbd, arg, flags)) 333 return 0; 334 335 /* return the number of found keyboards */ 336 return 1; 337 } 338 339 /* low-level functions */ 340 341 /* detect a keyboard */ 342 static int 343 atkbd_probe(int unit, void *arg, int flags) 344 { 345 KBDC kbdc; 346 int *data = (int *)arg; /* data[0]: controller, data[1]: irq */ 347 348 /* XXX */ 349 if (unit == ATKBD_DEFAULT) { 350 if (KBD_IS_PROBED(&default_kbd)) 351 return 0; 352 } 353 354 kbdc = atkbdc_open(data[0]); 355 if (kbdc == NULL) 356 return ENXIO; 357 if (probe_keyboard(kbdc, flags)) { 358 if (flags & KB_CONF_FAIL_IF_NO_KBD) 359 return ENXIO; 360 } 361 return 0; 362 } 363 364 /* reset and initialize the device */ 365 static int 366 atkbd_init(int unit, keyboard_t **kbdp, void *arg, int flags) 367 { 368 keyboard_t *kbd; 369 atkbd_state_t *state; 370 keymap_t *keymap; 371 accentmap_t *accmap; 372 fkeytab_t *fkeymap; 373 int fkeymap_size; 374 int delay[2]; 375 int *data = (int *)arg; /* data[0]: controller, data[1]: irq */ 376 int error, needfree; 377 #ifdef EVDEV_SUPPORT 378 struct evdev_dev *evdev; 379 char phys_loc[8]; 380 #endif 381 382 /* XXX */ 383 if (unit == ATKBD_DEFAULT) { 384 *kbdp = kbd = &default_kbd; 385 if (KBD_IS_INITIALIZED(kbd) && KBD_IS_CONFIGURED(kbd)) 386 return 0; 387 state = &default_kbd_state; 388 keymap = &default_keymap; 389 accmap = &default_accentmap; 390 fkeymap = default_fkeytab; 391 fkeymap_size = nitems(default_fkeytab); 392 needfree = 0; 393 } else if (*kbdp == NULL) { 394 *kbdp = kbd = malloc(sizeof(*kbd), M_DEVBUF, M_NOWAIT | M_ZERO); 395 state = malloc(sizeof(*state), M_DEVBUF, M_NOWAIT | M_ZERO); 396 /* NB: these will always be initialized 'cuz !KBD_IS_PROBED */ 397 keymap = malloc(sizeof(key_map), M_DEVBUF, M_NOWAIT); 398 accmap = malloc(sizeof(accent_map), M_DEVBUF, M_NOWAIT); 399 fkeymap = malloc(sizeof(fkey_tab), M_DEVBUF, M_NOWAIT); 400 fkeymap_size = sizeof(fkey_tab)/sizeof(fkey_tab[0]); 401 needfree = 1; 402 if ((kbd == NULL) || (state == NULL) || (keymap == NULL) 403 || (accmap == NULL) || (fkeymap == NULL)) { 404 error = ENOMEM; 405 goto bad; 406 } 407 } else if (KBD_IS_INITIALIZED(*kbdp) && KBD_IS_CONFIGURED(*kbdp)) { 408 return 0; 409 } else { 410 kbd = *kbdp; 411 state = (atkbd_state_t *)kbd->kb_data; 412 bzero(state, sizeof(*state)); 413 keymap = kbd->kb_keymap; 414 accmap = kbd->kb_accentmap; 415 fkeymap = kbd->kb_fkeytab; 416 fkeymap_size = kbd->kb_fkeytab_size; 417 needfree = 0; 418 } 419 420 if (!KBD_IS_PROBED(kbd)) { 421 state->kbdc = atkbdc_open(data[0]); 422 if (state->kbdc == NULL) { 423 error = ENXIO; 424 goto bad; 425 } 426 kbd_init_struct(kbd, ATKBD_DRIVER_NAME, KB_OTHER, unit, flags, 427 0, 0); 428 bcopy(&key_map, keymap, sizeof(key_map)); 429 bcopy(&accent_map, accmap, sizeof(accent_map)); 430 bcopy(fkey_tab, fkeymap, 431 imin(fkeymap_size * sizeof(fkeymap[0]), sizeof(fkey_tab))); 432 kbd_set_maps(kbd, keymap, accmap, fkeymap, fkeymap_size); 433 kbd->kb_data = (void *)state; 434 435 if (probe_keyboard(state->kbdc, flags)) { /* shouldn't happen */ 436 if (flags & KB_CONF_FAIL_IF_NO_KBD) { 437 error = ENXIO; 438 goto bad; 439 } 440 } else { 441 KBD_FOUND_DEVICE(kbd); 442 } 443 atkbd_clear_state(kbd); 444 state->ks_mode = K_XLATE; 445 /* 446 * FIXME: set the initial value for lock keys in ks_state 447 * according to the BIOS data? 448 */ 449 KBD_PROBE_DONE(kbd); 450 } 451 if (!KBD_IS_INITIALIZED(kbd) && !(flags & KB_CONF_PROBE_ONLY)) { 452 kbd->kb_config = flags & ~KB_CONF_PROBE_ONLY; 453 if (KBD_HAS_DEVICE(kbd) 454 && init_keyboard(state->kbdc, &kbd->kb_type, kbd->kb_config) 455 && (kbd->kb_config & KB_CONF_FAIL_IF_NO_KBD)) { 456 kbd_unregister(kbd); 457 error = ENXIO; 458 goto bad; 459 } 460 atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state); 461 set_typematic(kbd); 462 delay[0] = kbd->kb_delay1; 463 delay[1] = kbd->kb_delay2; 464 atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay); 465 466 #ifdef EVDEV_SUPPORT 467 /* register as evdev provider on first init */ 468 if (state->ks_evdev == NULL) { 469 snprintf(phys_loc, sizeof(phys_loc), "atkbd%d", unit); 470 evdev = evdev_alloc(); 471 evdev_set_name(evdev, "AT keyboard"); 472 evdev_set_phys(evdev, phys_loc); 473 evdev_set_id(evdev, BUS_I8042, PS2_KEYBOARD_VENDOR, 474 PS2_KEYBOARD_PRODUCT, 0); 475 evdev_set_methods(evdev, kbd, &atkbd_evdev_methods); 476 evdev_support_event(evdev, EV_SYN); 477 evdev_support_event(evdev, EV_KEY); 478 evdev_support_event(evdev, EV_LED); 479 evdev_support_event(evdev, EV_REP); 480 evdev_support_all_known_keys(evdev); 481 evdev_support_led(evdev, LED_NUML); 482 evdev_support_led(evdev, LED_CAPSL); 483 evdev_support_led(evdev, LED_SCROLLL); 484 485 if (evdev_register_mtx(evdev, &Giant)) 486 evdev_free(evdev); 487 else 488 state->ks_evdev = evdev; 489 state->ks_evdev_state = 0; 490 } 491 #endif 492 493 KBD_INIT_DONE(kbd); 494 } 495 if (!KBD_IS_CONFIGURED(kbd)) { 496 if (kbd_register(kbd) < 0) { 497 error = ENXIO; 498 goto bad; 499 } 500 KBD_CONFIG_DONE(kbd); 501 } 502 503 return 0; 504 bad: 505 if (needfree) { 506 if (state != NULL) 507 free(state, M_DEVBUF); 508 if (keymap != NULL) 509 free(keymap, M_DEVBUF); 510 if (accmap != NULL) 511 free(accmap, M_DEVBUF); 512 if (fkeymap != NULL) 513 free(fkeymap, M_DEVBUF); 514 if (kbd != NULL) { 515 free(kbd, M_DEVBUF); 516 *kbdp = NULL; /* insure ref doesn't leak to caller */ 517 } 518 } 519 return error; 520 } 521 522 /* finish using this keyboard */ 523 static int 524 atkbd_term(keyboard_t *kbd) 525 { 526 atkbd_state_t *state = (atkbd_state_t *)kbd->kb_data; 527 528 kbd_unregister(kbd); 529 callout_drain(&state->ks_timer); 530 return 0; 531 } 532 533 /* keyboard interrupt routine */ 534 static int 535 atkbd_intr(keyboard_t *kbd, void *arg) 536 { 537 atkbd_state_t *state = (atkbd_state_t *)kbd->kb_data; 538 int delay[2]; 539 int c; 540 541 if (!KBD_HAS_DEVICE(kbd)) { 542 /* 543 * The keyboard was not detected before; 544 * it must have been reconnected! 545 */ 546 init_keyboard(state->kbdc, &kbd->kb_type, kbd->kb_config); 547 KBD_FOUND_DEVICE(kbd); 548 atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state); 549 set_typematic(kbd); 550 delay[0] = kbd->kb_delay1; 551 delay[1] = kbd->kb_delay2; 552 atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay); 553 } 554 555 if (state->ks_polling) 556 return 0; 557 558 if (KBD_IS_ACTIVE(kbd) && KBD_IS_BUSY(kbd)) { 559 /* let the callback function to process the input */ 560 (*kbd->kb_callback.kc_func)(kbd, KBDIO_KEYINPUT, 561 kbd->kb_callback.kc_arg); 562 } else { 563 /* read and discard the input; no one is waiting for input */ 564 do { 565 c = atkbd_read_char(kbd, FALSE); 566 } while (c != NOKEY); 567 } 568 return 0; 569 } 570 571 /* test the interface to the device */ 572 static int 573 atkbd_test_if(keyboard_t *kbd) 574 { 575 int error; 576 int s; 577 578 error = 0; 579 empty_both_buffers(((atkbd_state_t *)kbd->kb_data)->kbdc, 10); 580 s = spltty(); 581 if (!test_controller(((atkbd_state_t *)kbd->kb_data)->kbdc)) 582 error = EIO; 583 else if (test_kbd_port(((atkbd_state_t *)kbd->kb_data)->kbdc) != 0) 584 error = EIO; 585 splx(s); 586 587 return error; 588 } 589 590 /* 591 * Enable the access to the device; until this function is called, 592 * the client cannot read from the keyboard. 593 */ 594 static int 595 atkbd_enable(keyboard_t *kbd) 596 { 597 int s; 598 599 s = spltty(); 600 KBD_ACTIVATE(kbd); 601 splx(s); 602 return 0; 603 } 604 605 /* disallow the access to the device */ 606 static int 607 atkbd_disable(keyboard_t *kbd) 608 { 609 int s; 610 611 s = spltty(); 612 KBD_DEACTIVATE(kbd); 613 splx(s); 614 return 0; 615 } 616 617 /* read one byte from the keyboard if it's allowed */ 618 static int 619 atkbd_read(keyboard_t *kbd, int wait) 620 { 621 int c; 622 623 if (wait) 624 c = read_kbd_data(((atkbd_state_t *)kbd->kb_data)->kbdc); 625 else 626 c = read_kbd_data_no_wait(((atkbd_state_t *)kbd->kb_data)->kbdc); 627 if (c != -1) 628 ++kbd->kb_count; 629 return (KBD_IS_ACTIVE(kbd) ? c : -1); 630 } 631 632 /* check if data is waiting */ 633 static int 634 atkbd_check(keyboard_t *kbd) 635 { 636 if (!KBD_IS_ACTIVE(kbd)) 637 return FALSE; 638 return kbdc_data_ready(((atkbd_state_t *)kbd->kb_data)->kbdc); 639 } 640 641 /* read char from the keyboard */ 642 static u_int 643 atkbd_read_char(keyboard_t *kbd, int wait) 644 { 645 atkbd_state_t *state; 646 u_int action; 647 int scancode; 648 int keycode; 649 650 state = (atkbd_state_t *)kbd->kb_data; 651 next_code: 652 /* do we have a composed char to return? */ 653 if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0)) { 654 action = state->ks_composed_char; 655 state->ks_composed_char = 0; 656 if (action > UCHAR_MAX) 657 return ERRKEY; 658 return action; 659 } 660 661 /* see if there is something in the keyboard port */ 662 if (wait) { 663 do { 664 scancode = read_kbd_data(state->kbdc); 665 } while (scancode == -1); 666 } else { 667 scancode = read_kbd_data_no_wait(state->kbdc); 668 if (scancode == -1) 669 return NOKEY; 670 } 671 ++kbd->kb_count; 672 673 #if KBDIO_DEBUG >= 10 674 printf("atkbd_read_char(): scancode:0x%x\n", scancode); 675 #endif 676 677 #ifdef EVDEV_SUPPORT 678 /* push evdev event */ 679 if (evdev_rcpt_mask & EVDEV_RCPT_HW_KBD && state->ks_evdev != NULL) { 680 keycode = evdev_scancode2key(&state->ks_evdev_state, 681 scancode); 682 683 if (keycode != KEY_RESERVED) { 684 evdev_push_event(state->ks_evdev, EV_KEY, 685 (uint16_t)keycode, scancode & 0x80 ? 0 : 1); 686 evdev_sync(state->ks_evdev); 687 } 688 } 689 #endif 690 691 /* return the byte as is for the K_RAW mode */ 692 if (state->ks_mode == K_RAW) 693 return scancode; 694 695 /* translate the scan code into a keycode */ 696 keycode = scancode & 0x7F; 697 switch (state->ks_prefix) { 698 case 0x00: /* normal scancode */ 699 switch(scancode) { 700 case 0xB8: /* left alt (compose key) released */ 701 if (state->ks_flags & COMPOSE) { 702 state->ks_flags &= ~COMPOSE; 703 if (state->ks_composed_char > UCHAR_MAX) 704 state->ks_composed_char = 0; 705 } 706 break; 707 case 0x38: /* left alt (compose key) pressed */ 708 if (!(state->ks_flags & COMPOSE)) { 709 state->ks_flags |= COMPOSE; 710 state->ks_composed_char = 0; 711 } 712 break; 713 case 0xE0: 714 case 0xE1: 715 state->ks_prefix = scancode; 716 goto next_code; 717 } 718 break; 719 case 0xE0: /* 0xE0 prefix */ 720 state->ks_prefix = 0; 721 switch (keycode) { 722 case 0x1C: /* right enter key */ 723 keycode = 0x59; 724 break; 725 case 0x1D: /* right ctrl key */ 726 keycode = 0x5A; 727 break; 728 case 0x35: /* keypad divide key */ 729 keycode = 0x5B; 730 break; 731 case 0x37: /* print scrn key */ 732 keycode = 0x5C; 733 break; 734 case 0x38: /* right alt key (alt gr) */ 735 keycode = 0x5D; 736 break; 737 case 0x46: /* ctrl-pause/break on AT 101 (see below) */ 738 keycode = 0x68; 739 break; 740 case 0x47: /* grey home key */ 741 keycode = 0x5E; 742 break; 743 case 0x48: /* grey up arrow key */ 744 keycode = 0x5F; 745 break; 746 case 0x49: /* grey page up key */ 747 keycode = 0x60; 748 break; 749 case 0x4B: /* grey left arrow key */ 750 keycode = 0x61; 751 break; 752 case 0x4D: /* grey right arrow key */ 753 keycode = 0x62; 754 break; 755 case 0x4F: /* grey end key */ 756 keycode = 0x63; 757 break; 758 case 0x50: /* grey down arrow key */ 759 keycode = 0x64; 760 break; 761 case 0x51: /* grey page down key */ 762 keycode = 0x65; 763 break; 764 case 0x52: /* grey insert key */ 765 keycode = 0x66; 766 break; 767 case 0x53: /* grey delete key */ 768 keycode = 0x67; 769 break; 770 /* the following 3 are only used on the MS "Natural" keyboard */ 771 case 0x5b: /* left Window key */ 772 keycode = 0x69; 773 break; 774 case 0x5c: /* right Window key */ 775 keycode = 0x6a; 776 break; 777 case 0x5d: /* menu key */ 778 keycode = 0x6b; 779 break; 780 case 0x5e: /* power key */ 781 keycode = 0x6d; 782 break; 783 case 0x5f: /* sleep key */ 784 keycode = 0x6e; 785 break; 786 case 0x63: /* wake key */ 787 keycode = 0x6f; 788 break; 789 default: /* ignore everything else */ 790 goto next_code; 791 } 792 break; 793 case 0xE1: /* 0xE1 prefix */ 794 /* 795 * The pause/break key on the 101 keyboard produces: 796 * E1-1D-45 E1-9D-C5 797 * Ctrl-pause/break produces: 798 * E0-46 E0-C6 (See above.) 799 */ 800 state->ks_prefix = 0; 801 if (keycode == 0x1D) 802 state->ks_prefix = 0x1D; 803 goto next_code; 804 /* NOT REACHED */ 805 case 0x1D: /* pause / break */ 806 state->ks_prefix = 0; 807 if (keycode != 0x45) 808 goto next_code; 809 keycode = 0x68; 810 break; 811 } 812 813 if (kbd->kb_type == KB_84) { 814 switch (keycode) { 815 case 0x37: /* *(numpad)/print screen */ 816 if (state->ks_flags & SHIFTS) 817 keycode = 0x5c; /* print screen */ 818 break; 819 case 0x45: /* num lock/pause */ 820 if (state->ks_flags & CTLS) 821 keycode = 0x68; /* pause */ 822 break; 823 case 0x46: /* scroll lock/break */ 824 if (state->ks_flags & CTLS) 825 keycode = 0x6c; /* break */ 826 break; 827 } 828 } else if (kbd->kb_type == KB_101) { 829 switch (keycode) { 830 case 0x5c: /* print screen */ 831 if (state->ks_flags & ALTS) 832 keycode = 0x54; /* sysrq */ 833 break; 834 case 0x68: /* pause/break */ 835 if (state->ks_flags & CTLS) 836 keycode = 0x6c; /* break */ 837 break; 838 } 839 } 840 841 /* return the key code in the K_CODE mode */ 842 if (state->ks_mode == K_CODE) 843 return (keycode | (scancode & 0x80)); 844 845 /* compose a character code */ 846 if (state->ks_flags & COMPOSE) { 847 switch (keycode | (scancode & 0x80)) { 848 /* key pressed, process it */ 849 case 0x47: case 0x48: case 0x49: /* keypad 7,8,9 */ 850 state->ks_composed_char *= 10; 851 state->ks_composed_char += keycode - 0x40; 852 if (state->ks_composed_char > UCHAR_MAX) 853 return ERRKEY; 854 goto next_code; 855 case 0x4B: case 0x4C: case 0x4D: /* keypad 4,5,6 */ 856 state->ks_composed_char *= 10; 857 state->ks_composed_char += keycode - 0x47; 858 if (state->ks_composed_char > UCHAR_MAX) 859 return ERRKEY; 860 goto next_code; 861 case 0x4F: case 0x50: case 0x51: /* keypad 1,2,3 */ 862 state->ks_composed_char *= 10; 863 state->ks_composed_char += keycode - 0x4E; 864 if (state->ks_composed_char > UCHAR_MAX) 865 return ERRKEY; 866 goto next_code; 867 case 0x52: /* keypad 0 */ 868 state->ks_composed_char *= 10; 869 if (state->ks_composed_char > UCHAR_MAX) 870 return ERRKEY; 871 goto next_code; 872 873 /* key released, no interest here */ 874 case 0xC7: case 0xC8: case 0xC9: /* keypad 7,8,9 */ 875 case 0xCB: case 0xCC: case 0xCD: /* keypad 4,5,6 */ 876 case 0xCF: case 0xD0: case 0xD1: /* keypad 1,2,3 */ 877 case 0xD2: /* keypad 0 */ 878 goto next_code; 879 880 case 0x38: /* left alt key */ 881 break; 882 883 default: 884 if (state->ks_composed_char > 0) { 885 state->ks_flags &= ~COMPOSE; 886 state->ks_composed_char = 0; 887 return ERRKEY; 888 } 889 break; 890 } 891 } 892 893 /* keycode to key action */ 894 action = genkbd_keyaction(kbd, keycode, scancode & 0x80, 895 &state->ks_state, &state->ks_accents); 896 if (action == NOKEY) 897 goto next_code; 898 else 899 return action; 900 } 901 902 /* check if char is waiting */ 903 static int 904 atkbd_check_char(keyboard_t *kbd) 905 { 906 atkbd_state_t *state; 907 908 if (!KBD_IS_ACTIVE(kbd)) 909 return FALSE; 910 state = (atkbd_state_t *)kbd->kb_data; 911 if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0)) 912 return TRUE; 913 return kbdc_data_ready(state->kbdc); 914 } 915 916 /* some useful control functions */ 917 static int 918 atkbd_ioctl(keyboard_t *kbd, u_long cmd, caddr_t arg) 919 { 920 /* translate LED_XXX bits into the device specific bits */ 921 static u_char ledmap[8] = { 922 0, 4, 2, 6, 1, 5, 3, 7, 923 }; 924 atkbd_state_t *state = kbd->kb_data; 925 int error; 926 int s; 927 int i; 928 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 929 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 930 int ival; 931 #endif 932 933 s = spltty(); 934 switch (cmd) { 935 936 case KDGKBMODE: /* get keyboard mode */ 937 *(int *)arg = state->ks_mode; 938 break; 939 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 940 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 941 case _IO('K', 7): 942 ival = IOCPARM_IVAL(arg); 943 arg = (caddr_t)&ival; 944 /* FALLTHROUGH */ 945 #endif 946 case KDSKBMODE: /* set keyboard mode */ 947 switch (*(int *)arg) { 948 case K_XLATE: 949 if (state->ks_mode != K_XLATE) { 950 /* make lock key state and LED state match */ 951 state->ks_state &= ~LOCK_MASK; 952 state->ks_state |= KBD_LED_VAL(kbd); 953 } 954 /* FALLTHROUGH */ 955 case K_RAW: 956 case K_CODE: 957 if (state->ks_mode != *(int *)arg) { 958 atkbd_clear_state(kbd); 959 state->ks_mode = *(int *)arg; 960 } 961 break; 962 default: 963 splx(s); 964 return EINVAL; 965 } 966 break; 967 968 case KDGETLED: /* get keyboard LED */ 969 *(int *)arg = KBD_LED_VAL(kbd); 970 break; 971 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 972 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 973 case _IO('K', 66): 974 ival = IOCPARM_IVAL(arg); 975 arg = (caddr_t)&ival; 976 /* FALLTHROUGH */ 977 #endif 978 case KDSETLED: /* set keyboard LED */ 979 /* NOTE: lock key state in ks_state won't be changed */ 980 if (*(int *)arg & ~LOCK_MASK) { 981 splx(s); 982 return EINVAL; 983 } 984 i = *(int *)arg; 985 /* replace CAPS LED with ALTGR LED for ALTGR keyboards */ 986 if (state->ks_mode == K_XLATE && 987 kbd->kb_keymap->n_keys > ALTGR_OFFSET) { 988 if (i & ALKED) 989 i |= CLKED; 990 else 991 i &= ~CLKED; 992 } 993 if (KBD_HAS_DEVICE(kbd)) { 994 error = write_kbd(state->kbdc, KBDC_SET_LEDS, 995 ledmap[i & LED_MASK]); 996 if (error) { 997 splx(s); 998 return error; 999 } 1000 } 1001 #ifdef EVDEV_SUPPORT 1002 /* push LED states to evdev */ 1003 if (state->ks_evdev != NULL && 1004 evdev_rcpt_mask & EVDEV_RCPT_HW_KBD) 1005 evdev_push_leds(state->ks_evdev, *(int *)arg); 1006 #endif 1007 KBD_LED_VAL(kbd) = *(int *)arg; 1008 break; 1009 1010 case KDGKBSTATE: /* get lock key state */ 1011 *(int *)arg = state->ks_state & LOCK_MASK; 1012 break; 1013 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 1014 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 1015 case _IO('K', 20): 1016 ival = IOCPARM_IVAL(arg); 1017 arg = (caddr_t)&ival; 1018 /* FALLTHROUGH */ 1019 #endif 1020 case KDSKBSTATE: /* set lock key state */ 1021 if (*(int *)arg & ~LOCK_MASK) { 1022 splx(s); 1023 return EINVAL; 1024 } 1025 state->ks_state &= ~LOCK_MASK; 1026 state->ks_state |= *(int *)arg; 1027 splx(s); 1028 /* set LEDs and quit */ 1029 return atkbd_ioctl(kbd, KDSETLED, arg); 1030 1031 case KDSETREPEAT: /* set keyboard repeat rate (new interface) */ 1032 splx(s); 1033 if (!KBD_HAS_DEVICE(kbd)) 1034 return 0; 1035 i = typematic(((int *)arg)[0], ((int *)arg)[1]); 1036 error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, i); 1037 if (error == 0) { 1038 kbd->kb_delay1 = typematic_delay(i); 1039 kbd->kb_delay2 = typematic_rate(i); 1040 #ifdef EVDEV_SUPPORT 1041 if (state->ks_evdev != NULL && 1042 evdev_rcpt_mask & EVDEV_RCPT_HW_KBD) 1043 evdev_push_repeats(state->ks_evdev, kbd); 1044 #endif 1045 } 1046 return error; 1047 1048 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 1049 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 1050 case _IO('K', 67): 1051 ival = IOCPARM_IVAL(arg); 1052 arg = (caddr_t)&ival; 1053 /* FALLTHROUGH */ 1054 #endif 1055 case KDSETRAD: /* set keyboard repeat rate (old interface) */ 1056 splx(s); 1057 if (!KBD_HAS_DEVICE(kbd)) 1058 return 0; 1059 error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, *(int *)arg); 1060 if (error == 0) { 1061 kbd->kb_delay1 = typematic_delay(*(int *)arg); 1062 kbd->kb_delay2 = typematic_rate(*(int *)arg); 1063 #ifdef EVDEV_SUPPORT 1064 if (state->ks_evdev != NULL && 1065 evdev_rcpt_mask & EVDEV_RCPT_HW_KBD) 1066 evdev_push_repeats(state->ks_evdev, kbd); 1067 #endif 1068 } 1069 return error; 1070 1071 case PIO_KEYMAP: /* set keyboard translation table */ 1072 case OPIO_KEYMAP: /* set keyboard translation table (compat) */ 1073 case PIO_KEYMAPENT: /* set keyboard translation table entry */ 1074 case PIO_DEADKEYMAP: /* set accent key translation table */ 1075 state->ks_accents = 0; 1076 /* FALLTHROUGH */ 1077 default: 1078 splx(s); 1079 return genkbd_commonioctl(kbd, cmd, arg); 1080 } 1081 1082 splx(s); 1083 return 0; 1084 } 1085 1086 /* lock the access to the keyboard */ 1087 static int 1088 atkbd_lock(keyboard_t *kbd, int lock) 1089 { 1090 return kbdc_lock(((atkbd_state_t *)kbd->kb_data)->kbdc, lock); 1091 } 1092 1093 /* clear the internal state of the keyboard */ 1094 static void 1095 atkbd_clear_state(keyboard_t *kbd) 1096 { 1097 atkbd_state_t *state; 1098 1099 state = (atkbd_state_t *)kbd->kb_data; 1100 state->ks_flags = 0; 1101 state->ks_polling = 0; 1102 state->ks_state &= LOCK_MASK; /* preserve locking key state */ 1103 state->ks_accents = 0; 1104 state->ks_composed_char = 0; 1105 #if 0 1106 state->ks_prefix = 0; /* XXX */ 1107 #endif 1108 } 1109 1110 /* save the internal state */ 1111 static int 1112 atkbd_get_state(keyboard_t *kbd, void *buf, size_t len) 1113 { 1114 if (len == 0) 1115 return sizeof(atkbd_state_t); 1116 if (len < sizeof(atkbd_state_t)) 1117 return -1; 1118 bcopy(kbd->kb_data, buf, sizeof(atkbd_state_t)); 1119 return 0; 1120 } 1121 1122 /* set the internal state */ 1123 static int 1124 atkbd_set_state(keyboard_t *kbd, void *buf, size_t len) 1125 { 1126 if (len < sizeof(atkbd_state_t)) 1127 return ENOMEM; 1128 if (((atkbd_state_t *)kbd->kb_data)->kbdc 1129 != ((atkbd_state_t *)buf)->kbdc) 1130 return ENOMEM; 1131 bcopy(buf, kbd->kb_data, sizeof(atkbd_state_t)); 1132 return 0; 1133 } 1134 1135 static int 1136 atkbd_poll(keyboard_t *kbd, int on) 1137 { 1138 atkbd_state_t *state; 1139 int s; 1140 1141 state = (atkbd_state_t *)kbd->kb_data; 1142 s = spltty(); 1143 if (on) 1144 ++state->ks_polling; 1145 else 1146 --state->ks_polling; 1147 splx(s); 1148 return 0; 1149 } 1150 1151 static void 1152 atkbd_shutdown_final(void *v) 1153 { 1154 #ifdef __sparc64__ 1155 keyboard_t *kbd = v; 1156 KBDC kbdc = ((atkbd_state_t *)kbd->kb_data)->kbdc; 1157 1158 /* 1159 * Turn off the translation in preparation for handing the keyboard 1160 * over to the OFW as the OBP driver doesn't use translation and 1161 * also doesn't disable it itself resulting in a broken keymap at 1162 * the boot prompt. Also disable the aux port and the interrupts as 1163 * the OBP driver doesn't use them, i.e. polls the keyboard. Not 1164 * disabling the interrupts doesn't cause real problems but the 1165 * responsiveness is a bit better when they are turned off. 1166 */ 1167 send_kbd_command(kbdc, KBDC_DISABLE_KBD); 1168 set_controller_command_byte(kbdc, 1169 KBD_AUX_CONTROL_BITS | KBD_KBD_CONTROL_BITS | KBD_TRANSLATION, 1170 KBD_DISABLE_AUX_PORT | KBD_DISABLE_KBD_INT | KBD_ENABLE_KBD_PORT); 1171 send_kbd_command(kbdc, KBDC_ENABLE_KBD); 1172 #endif 1173 } 1174 1175 static int 1176 atkbd_reset(KBDC kbdc, int flags, int c) 1177 { 1178 /* reset keyboard hardware */ 1179 if (!(flags & KB_CONF_NO_RESET) && !reset_kbd(kbdc)) { 1180 /* 1181 * KEYBOARD ERROR 1182 * Keyboard reset may fail either because the keyboard 1183 * doen't exist, or because the keyboard doesn't pass 1184 * the self-test, or the keyboard controller on the 1185 * motherboard and the keyboard somehow fail to shake hands. 1186 * It is just possible, particularly in the last case, 1187 * that the keyboard controller may be left in a hung state. 1188 * test_controller() and test_kbd_port() appear to bring 1189 * the keyboard controller back (I don't know why and how, 1190 * though.) 1191 */ 1192 empty_both_buffers(kbdc, 10); 1193 test_controller(kbdc); 1194 test_kbd_port(kbdc); 1195 /* 1196 * We could disable the keyboard port and interrupt... but, 1197 * the keyboard may still exist (see above). 1198 */ 1199 set_controller_command_byte(kbdc, 1200 ALLOW_DISABLE_KBD(kbdc) ? 0xff : KBD_KBD_CONTROL_BITS, c); 1201 if (bootverbose) 1202 printf("atkbd: failed to reset the keyboard.\n"); 1203 return (EIO); 1204 } 1205 return (0); 1206 } 1207 1208 #ifdef EVDEV_SUPPORT 1209 static void 1210 atkbd_ev_event(struct evdev_dev *evdev, uint16_t type, uint16_t code, 1211 int32_t value) 1212 { 1213 keyboard_t *kbd = evdev_get_softc(evdev); 1214 1215 if (evdev_rcpt_mask & EVDEV_RCPT_HW_KBD && 1216 (type == EV_LED || type == EV_REP)) { 1217 mtx_lock(&Giant); 1218 kbd_ev_event(kbd, type, code, value); 1219 mtx_unlock(&Giant); 1220 } 1221 } 1222 #endif 1223 1224 /* local functions */ 1225 1226 static int 1227 set_typematic(keyboard_t *kbd) 1228 { 1229 int val, error; 1230 atkbd_state_t *state = kbd->kb_data; 1231 1232 val = typematic(DEFAULT_DELAY, DEFAULT_RATE); 1233 error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, val); 1234 if (error == 0) { 1235 kbd->kb_delay1 = typematic_delay(val); 1236 kbd->kb_delay2 = typematic_rate(val); 1237 } 1238 1239 return (error); 1240 } 1241 1242 static int 1243 setup_kbd_port(KBDC kbdc, int port, int intr) 1244 { 1245 if (!set_controller_command_byte(kbdc, 1246 KBD_KBD_CONTROL_BITS, 1247 ((port) ? KBD_ENABLE_KBD_PORT : KBD_DISABLE_KBD_PORT) 1248 | ((intr) ? KBD_ENABLE_KBD_INT : KBD_DISABLE_KBD_INT))) 1249 return 1; 1250 return 0; 1251 } 1252 1253 static int 1254 get_kbd_echo(KBDC kbdc) 1255 { 1256 /* enable the keyboard port, but disable the keyboard intr. */ 1257 if (setup_kbd_port(kbdc, TRUE, FALSE)) 1258 /* CONTROLLER ERROR: there is very little we can do... */ 1259 return ENXIO; 1260 1261 /* see if something is present */ 1262 write_kbd_command(kbdc, KBDC_ECHO); 1263 if (read_kbd_data(kbdc) != KBD_ECHO) { 1264 empty_both_buffers(kbdc, 10); 1265 test_controller(kbdc); 1266 test_kbd_port(kbdc); 1267 return ENXIO; 1268 } 1269 1270 /* enable the keyboard port and intr. */ 1271 if (setup_kbd_port(kbdc, TRUE, TRUE)) { 1272 /* 1273 * CONTROLLER ERROR 1274 * This is serious; the keyboard intr is left disabled! 1275 */ 1276 return ENXIO; 1277 } 1278 1279 return 0; 1280 } 1281 1282 static int 1283 probe_keyboard(KBDC kbdc, int flags) 1284 { 1285 /* 1286 * Don't try to print anything in this function. The low-level 1287 * console may not have been initialized yet... 1288 */ 1289 int err; 1290 int c; 1291 int m; 1292 1293 if (!kbdc_lock(kbdc, TRUE)) { 1294 /* driver error? */ 1295 return ENXIO; 1296 } 1297 1298 /* temporarily block data transmission from the keyboard */ 1299 write_controller_command(kbdc, KBDC_DISABLE_KBD_PORT); 1300 1301 /* flush any noise in the buffer */ 1302 empty_both_buffers(kbdc, 100); 1303 1304 /* save the current keyboard controller command byte */ 1305 m = kbdc_get_device_mask(kbdc) & ~KBD_KBD_CONTROL_BITS; 1306 c = get_controller_command_byte(kbdc); 1307 if (c == -1) { 1308 /* CONTROLLER ERROR */ 1309 kbdc_set_device_mask(kbdc, m); 1310 kbdc_lock(kbdc, FALSE); 1311 return ENXIO; 1312 } 1313 1314 /* 1315 * The keyboard may have been screwed up by the boot block. 1316 * We may just be able to recover from error by testing the controller 1317 * and the keyboard port. The controller command byte needs to be 1318 * saved before this recovery operation, as some controllers seem 1319 * to set the command byte to particular values. 1320 */ 1321 test_controller(kbdc); 1322 if (!(flags & KB_CONF_NO_PROBE_TEST)) 1323 test_kbd_port(kbdc); 1324 1325 err = get_kbd_echo(kbdc); 1326 1327 /* 1328 * Even if the keyboard doesn't seem to be present (err != 0), 1329 * we shall enable the keyboard port and interrupt so that 1330 * the driver will be operable when the keyboard is attached 1331 * to the system later. It is NOT recommended to hot-plug 1332 * the AT keyboard, but many people do so... 1333 */ 1334 kbdc_set_device_mask(kbdc, m | KBD_KBD_CONTROL_BITS); 1335 setup_kbd_port(kbdc, TRUE, TRUE); 1336 #if 0 1337 if (err == 0) { 1338 kbdc_set_device_mask(kbdc, m | KBD_KBD_CONTROL_BITS); 1339 } else { 1340 /* try to restore the command byte as before */ 1341 set_controller_command_byte(kbdc, 1342 ALLOW_DISABLE_KBD(kbdc) ? 0xff : KBD_KBD_CONTROL_BITS, c); 1343 kbdc_set_device_mask(kbdc, m); 1344 } 1345 #endif 1346 1347 kbdc_lock(kbdc, FALSE); 1348 return (HAS_QUIRK(kbdc, KBDC_QUIRK_IGNORE_PROBE_RESULT) ? 0 : err); 1349 } 1350 1351 static int 1352 init_keyboard(KBDC kbdc, int *type, int flags) 1353 { 1354 int codeset; 1355 int id; 1356 int c; 1357 1358 if (!kbdc_lock(kbdc, TRUE)) { 1359 /* driver error? */ 1360 return EIO; 1361 } 1362 1363 /* temporarily block data transmission from the keyboard */ 1364 write_controller_command(kbdc, KBDC_DISABLE_KBD_PORT); 1365 1366 /* save the current controller command byte */ 1367 empty_both_buffers(kbdc, 200); 1368 c = get_controller_command_byte(kbdc); 1369 if (c == -1) { 1370 /* CONTROLLER ERROR */ 1371 kbdc_lock(kbdc, FALSE); 1372 printf("atkbd: unable to get the current command byte value.\n"); 1373 return EIO; 1374 } 1375 if (bootverbose) 1376 printf("atkbd: the current kbd controller command byte %04x\n", 1377 c); 1378 #if 0 1379 /* override the keyboard lock switch */ 1380 c |= KBD_OVERRIDE_KBD_LOCK; 1381 #endif 1382 1383 /* enable the keyboard port, but disable the keyboard intr. */ 1384 if (setup_kbd_port(kbdc, TRUE, FALSE)) { 1385 /* CONTROLLER ERROR: there is very little we can do... */ 1386 printf("atkbd: unable to set the command byte.\n"); 1387 kbdc_lock(kbdc, FALSE); 1388 return EIO; 1389 } 1390 1391 if (HAS_QUIRK(kbdc, KBDC_QUIRK_RESET_AFTER_PROBE) && 1392 atkbd_reset(kbdc, flags, c)) { 1393 kbdc_lock(kbdc, FALSE); 1394 return EIO; 1395 } 1396 1397 /* 1398 * Check if we have an XT keyboard before we attempt to reset it. 1399 * The procedure assumes that the keyboard and the controller have 1400 * been set up properly by BIOS and have not been messed up 1401 * during the boot process. 1402 */ 1403 codeset = -1; 1404 if (flags & KB_CONF_ALT_SCANCODESET) 1405 /* the user says there is a XT keyboard */ 1406 codeset = 1; 1407 #ifdef KBD_DETECT_XT_KEYBOARD 1408 else if ((c & KBD_TRANSLATION) == 0) { 1409 /* SET_SCANCODE_SET is not always supported; ignore error */ 1410 if (send_kbd_command_and_data(kbdc, KBDC_SET_SCANCODE_SET, 0) 1411 == KBD_ACK) 1412 codeset = read_kbd_data(kbdc); 1413 } 1414 if (bootverbose) 1415 printf("atkbd: scancode set %d\n", codeset); 1416 #endif /* KBD_DETECT_XT_KEYBOARD */ 1417 1418 *type = KB_OTHER; 1419 id = get_kbd_id(kbdc); 1420 switch(id) { 1421 case 0x41ab: /* 101/102/... Enhanced */ 1422 case 0x83ab: /* ditto */ 1423 case 0x54ab: /* SpaceSaver */ 1424 case 0x84ab: /* ditto */ 1425 #if 0 1426 case 0x90ab: /* 'G' */ 1427 case 0x91ab: /* 'P' */ 1428 case 0x92ab: /* 'A' */ 1429 #endif 1430 *type = KB_101; 1431 break; 1432 case -1: /* AT 84 keyboard doesn't return ID */ 1433 *type = KB_84; 1434 break; 1435 default: 1436 break; 1437 } 1438 if (bootverbose) 1439 printf("atkbd: keyboard ID 0x%x (%d)\n", id, *type); 1440 1441 if (!HAS_QUIRK(kbdc, KBDC_QUIRK_RESET_AFTER_PROBE) && 1442 atkbd_reset(kbdc, flags, c)) { 1443 kbdc_lock(kbdc, FALSE); 1444 return EIO; 1445 } 1446 1447 /* 1448 * Allow us to set the XT_KEYBD flag so that keyboards 1449 * such as those on the IBM ThinkPad laptop computers can be used 1450 * with the standard console driver. 1451 */ 1452 if (codeset == 1) { 1453 if (send_kbd_command_and_data(kbdc, 1454 KBDC_SET_SCANCODE_SET, codeset) == KBD_ACK) { 1455 /* XT kbd doesn't need scan code translation */ 1456 c &= ~KBD_TRANSLATION; 1457 } else { 1458 /* 1459 * KEYBOARD ERROR 1460 * The XT kbd isn't usable unless the proper scan 1461 * code set is selected. 1462 */ 1463 set_controller_command_byte(kbdc, ALLOW_DISABLE_KBD(kbdc) 1464 ? 0xff : KBD_KBD_CONTROL_BITS, c); 1465 kbdc_lock(kbdc, FALSE); 1466 printf("atkbd: unable to set the XT keyboard mode.\n"); 1467 return EIO; 1468 } 1469 } 1470 1471 #if defined(__sparc64__) 1472 if (send_kbd_command_and_data( 1473 kbdc, KBDC_SET_SCANCODE_SET, 2) != KBD_ACK) { 1474 printf("atkbd: can't set translation.\n"); 1475 } 1476 c |= KBD_TRANSLATION; 1477 #endif 1478 1479 /* 1480 * Some keyboards require a SETLEDS command to be sent after 1481 * the reset command before they will send keystrokes to us 1482 */ 1483 if (HAS_QUIRK(kbdc, KBDC_QUIRK_SETLEDS_ON_INIT) && 1484 send_kbd_command_and_data(kbdc, KBDC_SET_LEDS, 0) != KBD_ACK) { 1485 printf("atkbd: setleds failed\n"); 1486 } 1487 if (!ALLOW_DISABLE_KBD(kbdc)) 1488 send_kbd_command(kbdc, KBDC_ENABLE_KBD); 1489 1490 /* enable the keyboard port and intr. */ 1491 if (!set_controller_command_byte(kbdc, 1492 KBD_KBD_CONTROL_BITS | KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK, 1493 (c & (KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK)) 1494 | KBD_ENABLE_KBD_PORT | KBD_ENABLE_KBD_INT)) { 1495 /* 1496 * CONTROLLER ERROR 1497 * This is serious; we are left with the disabled 1498 * keyboard intr. 1499 */ 1500 set_controller_command_byte(kbdc, ALLOW_DISABLE_KBD(kbdc) 1501 ? 0xff : (KBD_KBD_CONTROL_BITS | KBD_TRANSLATION | 1502 KBD_OVERRIDE_KBD_LOCK), c); 1503 kbdc_lock(kbdc, FALSE); 1504 printf("atkbd: unable to enable the keyboard port and intr.\n"); 1505 return EIO; 1506 } 1507 1508 kbdc_lock(kbdc, FALSE); 1509 return 0; 1510 } 1511 1512 static int 1513 write_kbd(KBDC kbdc, int command, int data) 1514 { 1515 int s; 1516 1517 /* prevent the timeout routine from polling the keyboard */ 1518 if (!kbdc_lock(kbdc, TRUE)) 1519 return EBUSY; 1520 1521 /* disable the keyboard and mouse interrupt */ 1522 s = spltty(); 1523 #if 0 1524 c = get_controller_command_byte(kbdc); 1525 if ((c == -1) 1526 || !set_controller_command_byte(kbdc, 1527 kbdc_get_device_mask(kbdc), 1528 KBD_DISABLE_KBD_PORT | KBD_DISABLE_KBD_INT 1529 | KBD_DISABLE_AUX_PORT | KBD_DISABLE_AUX_INT)) { 1530 /* CONTROLLER ERROR */ 1531 kbdc_lock(kbdc, FALSE); 1532 splx(s); 1533 return EIO; 1534 } 1535 /* 1536 * Now that the keyboard controller is told not to generate 1537 * the keyboard and mouse interrupts, call `splx()' to allow 1538 * the other tty interrupts. The clock interrupt may also occur, 1539 * but the timeout routine (`scrn_timer()') will be blocked 1540 * by the lock flag set via `kbdc_lock()' 1541 */ 1542 splx(s); 1543 #endif 1544 if (send_kbd_command_and_data(kbdc, command, data) != KBD_ACK) 1545 send_kbd_command(kbdc, KBDC_ENABLE_KBD); 1546 #if 0 1547 /* restore the interrupts */ 1548 if (!set_controller_command_byte(kbdc, kbdc_get_device_mask(kbdc), 1549 c & (KBD_KBD_CONTROL_BITS | KBD_AUX_CONTROL_BITS))) { 1550 /* CONTROLLER ERROR */ 1551 } 1552 #else 1553 splx(s); 1554 #endif 1555 kbdc_lock(kbdc, FALSE); 1556 1557 return 0; 1558 } 1559 1560 static int 1561 get_kbd_id(KBDC kbdc) 1562 { 1563 int id1, id2; 1564 1565 empty_both_buffers(kbdc, 10); 1566 id1 = id2 = -1; 1567 if (send_kbd_command(kbdc, KBDC_SEND_DEV_ID) != KBD_ACK) 1568 return -1; 1569 1570 DELAY(10000); /* 10 msec delay */ 1571 id1 = read_kbd_data(kbdc); 1572 if (id1 != -1) 1573 id2 = read_kbd_data(kbdc); 1574 1575 if ((id1 == -1) || (id2 == -1)) { 1576 empty_both_buffers(kbdc, 10); 1577 test_controller(kbdc); 1578 test_kbd_port(kbdc); 1579 return -1; 1580 } 1581 return ((id2 << 8) | id1); 1582 } 1583 1584 static int delays[] = { 250, 500, 750, 1000 }; 1585 static int rates[] = { 34, 38, 42, 46, 50, 55, 59, 63, 1586 68, 76, 84, 92, 100, 110, 118, 126, 1587 136, 152, 168, 184, 200, 220, 236, 252, 1588 272, 304, 336, 368, 400, 440, 472, 504 }; 1589 1590 static int 1591 typematic_delay(int i) 1592 { 1593 return delays[(i >> 5) & 3]; 1594 } 1595 1596 static int 1597 typematic_rate(int i) 1598 { 1599 return rates[i & 0x1f]; 1600 } 1601 1602 static int 1603 typematic(int delay, int rate) 1604 { 1605 int value; 1606 int i; 1607 1608 for (i = nitems(delays) - 1; i > 0; --i) { 1609 if (delay >= delays[i]) 1610 break; 1611 } 1612 value = i << 5; 1613 for (i = nitems(rates) - 1; i > 0; --i) { 1614 if (rate >= rates[i]) 1615 break; 1616 } 1617 value |= i; 1618 return value; 1619 }
Cache object: 25e9d432a1aeb7e39b1dec5663f2a623
[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]