Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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sys/dev/atkbdc/atkbd.c
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1 /*- 2 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer as 10 * the first lines of this file unmodified. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 * 26 */ 27 28 #include <sys/cdefs.h> 29 __FBSDID("$FreeBSD$"); 30 31 #include "opt_compat.h" 32 #include "opt_kbd.h" 33 #include "opt_atkbd.h" 34 #include "opt_evdev.h" 35 36 #include <sys/param.h> 37 #include <sys/systm.h> 38 #include <sys/kernel.h> 39 #include <sys/bus.h> 40 #include <sys/eventhandler.h> 41 #include <sys/proc.h> 42 #include <sys/limits.h> 43 #include <sys/malloc.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 58 typedef 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 75 static void atkbd_timeout(void *arg); 76 static void atkbd_shutdown_final(void *v); 77 static 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 90 int 91 atkbd_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 } 108 109 int 110 atkbd_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 EVENTHANDLER_REGISTER(shutdown_final, atkbd_shutdown_final, *kbd, 154 SHUTDOWN_PRI_DEFAULT); 155 156 return 0; 157 } 158 159 static void 160 atkbd_timeout(void *arg) 161 { 162 atkbd_state_t *state; 163 keyboard_t *kbd; 164 int s; 165 166 /* 167 * The original text of the following comments are extracted 168 * from syscons.c (1.287) 169 * 170 * With release 2.1 of the Xaccel server, the keyboard is left 171 * hanging pretty often. Apparently an interrupt from the 172 * keyboard is lost, and I don't know why (yet). 173 * This ugly hack calls the low-level interrupt routine if input 174 * is ready for the keyboard and conveniently hides the problem. XXX 175 * 176 * Try removing anything stuck in the keyboard controller; whether 177 * it's a keyboard scan code or mouse data. The low-level 178 * interrupt routine doesn't read the mouse data directly, 179 * but the keyboard controller driver will, as a side effect. 180 */ 181 /* 182 * And here is bde's original comment about this: 183 * 184 * This is necessary to handle edge triggered interrupts - if we 185 * returned when our IRQ is high due to unserviced input, then there 186 * would be no more keyboard IRQs until the keyboard is reset by 187 * external powers. 188 * 189 * The keyboard apparently unwedges the irq in most cases. 190 */ 191 s = spltty(); 192 kbd = (keyboard_t *)arg; 193 if (kbdd_lock(kbd, TRUE)) { 194 /* 195 * We have seen the lock flag is not set. Let's reset 196 * the flag early, otherwise the LED update routine fails 197 * which may want the lock during the interrupt routine. 198 */ 199 kbdd_lock(kbd, FALSE); 200 if (kbdd_check_char(kbd)) 201 kbdd_intr(kbd, NULL); 202 } 203 splx(s); 204 state = (atkbd_state_t *)kbd->kb_data; 205 callout_reset(&state->ks_timer, hz / 10, atkbd_timeout, arg); 206 } 207 208 /* LOW-LEVEL */ 209 210 #define ATKBD_DEFAULT 0 211 212 /* keyboard driver declaration */ 213 static int atkbd_configure(int flags); 214 static kbd_probe_t atkbd_probe; 215 static kbd_init_t atkbd_init; 216 static kbd_term_t atkbd_term; 217 static kbd_intr_t atkbd_intr; 218 static kbd_test_if_t atkbd_test_if; 219 static kbd_enable_t atkbd_enable; 220 static kbd_disable_t atkbd_disable; 221 static kbd_read_t atkbd_read; 222 static kbd_check_t atkbd_check; 223 static kbd_read_char_t atkbd_read_char; 224 static kbd_check_char_t atkbd_check_char; 225 static kbd_ioctl_t atkbd_ioctl; 226 static kbd_lock_t atkbd_lock; 227 static kbd_clear_state_t atkbd_clear_state; 228 static kbd_get_state_t atkbd_get_state; 229 static kbd_set_state_t atkbd_set_state; 230 static kbd_poll_mode_t atkbd_poll; 231 232 static keyboard_switch_t atkbdsw = { 233 .probe = atkbd_probe, 234 .init = atkbd_init, 235 .term = atkbd_term, 236 .intr = atkbd_intr, 237 .test_if = atkbd_test_if, 238 .enable = atkbd_enable, 239 .disable = atkbd_disable, 240 .read = atkbd_read, 241 .check = atkbd_check, 242 .read_char = atkbd_read_char, 243 .check_char = atkbd_check_char, 244 .ioctl = atkbd_ioctl, 245 .lock = atkbd_lock, 246 .clear_state = atkbd_clear_state, 247 .get_state = atkbd_get_state, 248 .set_state = atkbd_set_state, 249 .poll = atkbd_poll, 250 }; 251 252 KEYBOARD_DRIVER(atkbd, atkbdsw, atkbd_configure); 253 254 /* local functions */ 255 static int set_typematic(keyboard_t *kbd); 256 static int setup_kbd_port(KBDC kbdc, int port, int intr); 257 static int get_kbd_echo(KBDC kbdc); 258 static int probe_keyboard(KBDC kbdc, int flags); 259 static int init_keyboard(KBDC kbdc, int *type, int flags); 260 static int write_kbd(KBDC kbdc, int command, int data); 261 static int get_kbd_id(KBDC kbdc); 262 static int typematic(int delay, int rate); 263 static int typematic_delay(int delay); 264 static int typematic_rate(int rate); 265 266 #ifdef EVDEV_SUPPORT 267 static const struct evdev_methods atkbd_evdev_methods = { 268 .ev_event = evdev_ev_kbd_event, 269 }; 270 #endif 271 272 /* local variables */ 273 274 /* the initial key map, accent map and fkey strings */ 275 #ifdef ATKBD_DFLT_KEYMAP 276 #define KBD_DFLT_KEYMAP 277 #include "atkbdmap.h" 278 #endif 279 #include <dev/kbd/kbdtables.h> 280 281 /* structures for the default keyboard */ 282 static keyboard_t default_kbd; 283 static atkbd_state_t default_kbd_state; 284 static keymap_t default_keymap; 285 static accentmap_t default_accentmap; 286 static fkeytab_t default_fkeytab[NUM_FKEYS]; 287 288 /* 289 * The back door to the keyboard driver! 290 * This function is called by the console driver, via the kbdio module, 291 * to tickle keyboard drivers when the low-level console is being initialized. 292 * Almost nothing in the kernel has been initialied yet. Try to probe 293 * keyboards if possible. 294 * NOTE: because of the way the low-level console is initialized, this routine 295 * may be called more than once!! 296 */ 297 static int 298 atkbd_configure(int flags) 299 { 300 keyboard_t *kbd; 301 int arg[2]; 302 int i; 303 304 /* 305 * Probe the keyboard controller, if not present or if the driver 306 * is disabled, unregister the keyboard if any. 307 */ 308 if (atkbdc_configure() != 0 || 309 resource_disabled("atkbd", ATKBD_DEFAULT)) { 310 i = kbd_find_keyboard(ATKBD_DRIVER_NAME, ATKBD_DEFAULT); 311 if (i >= 0) { 312 kbd = kbd_get_keyboard(i); 313 kbd_unregister(kbd); 314 kbd->kb_flags &= ~KB_REGISTERED; 315 } 316 return 0; 317 } 318 319 /* XXX: a kludge to obtain the device configuration flags */ 320 if (resource_int_value("atkbd", ATKBD_DEFAULT, "flags", &i) == 0) 321 flags |= i; 322 323 /* probe the default keyboard */ 324 arg[0] = -1; 325 arg[1] = -1; 326 kbd = NULL; 327 if (atkbd_probe(ATKBD_DEFAULT, arg, flags)) 328 return 0; 329 if (atkbd_init(ATKBD_DEFAULT, &kbd, arg, flags)) 330 return 0; 331 332 /* return the number of found keyboards */ 333 return 1; 334 } 335 336 /* low-level functions */ 337 338 /* detect a keyboard */ 339 static int 340 atkbd_probe(int unit, void *arg, int flags) 341 { 342 KBDC kbdc; 343 int *data = (int *)arg; /* data[0]: controller, data[1]: irq */ 344 345 /* XXX */ 346 if (unit == ATKBD_DEFAULT) { 347 if (KBD_IS_PROBED(&default_kbd)) 348 return 0; 349 } 350 351 kbdc = atkbdc_open(data[0]); 352 if (kbdc == NULL) 353 return ENXIO; 354 if (probe_keyboard(kbdc, flags)) { 355 if (flags & KB_CONF_FAIL_IF_NO_KBD) 356 return ENXIO; 357 } 358 return 0; 359 } 360 361 /* reset and initialize the device */ 362 static int 363 atkbd_init(int unit, keyboard_t **kbdp, void *arg, int flags) 364 { 365 keyboard_t *kbd; 366 atkbd_state_t *state; 367 keymap_t *keymap; 368 accentmap_t *accmap; 369 fkeytab_t *fkeymap; 370 int fkeymap_size; 371 int delay[2]; 372 int *data = (int *)arg; /* data[0]: controller, data[1]: irq */ 373 int error, needfree; 374 #ifdef EVDEV_SUPPORT 375 struct evdev_dev *evdev; 376 char phys_loc[8]; 377 #endif 378 379 /* XXX */ 380 if (unit == ATKBD_DEFAULT) { 381 *kbdp = kbd = &default_kbd; 382 if (KBD_IS_INITIALIZED(kbd) && KBD_IS_CONFIGURED(kbd)) 383 return 0; 384 state = &default_kbd_state; 385 keymap = &default_keymap; 386 accmap = &default_accentmap; 387 fkeymap = default_fkeytab; 388 fkeymap_size = nitems(default_fkeytab); 389 needfree = 0; 390 } else if (*kbdp == NULL) { 391 *kbdp = kbd = malloc(sizeof(*kbd), M_DEVBUF, M_NOWAIT | M_ZERO); 392 state = malloc(sizeof(*state), M_DEVBUF, M_NOWAIT | M_ZERO); 393 /* NB: these will always be initialized 'cuz !KBD_IS_PROBED */ 394 keymap = malloc(sizeof(key_map), M_DEVBUF, M_NOWAIT); 395 accmap = malloc(sizeof(accent_map), M_DEVBUF, M_NOWAIT); 396 fkeymap = malloc(sizeof(fkey_tab), M_DEVBUF, M_NOWAIT); 397 fkeymap_size = sizeof(fkey_tab)/sizeof(fkey_tab[0]); 398 needfree = 1; 399 if ((kbd == NULL) || (state == NULL) || (keymap == NULL) 400 || (accmap == NULL) || (fkeymap == NULL)) { 401 error = ENOMEM; 402 goto bad; 403 } 404 } else if (KBD_IS_INITIALIZED(*kbdp) && KBD_IS_CONFIGURED(*kbdp)) { 405 return 0; 406 } else { 407 kbd = *kbdp; 408 state = (atkbd_state_t *)kbd->kb_data; 409 bzero(state, sizeof(*state)); 410 keymap = kbd->kb_keymap; 411 accmap = kbd->kb_accentmap; 412 fkeymap = kbd->kb_fkeytab; 413 fkeymap_size = kbd->kb_fkeytab_size; 414 needfree = 0; 415 } 416 417 if (!KBD_IS_PROBED(kbd)) { 418 state->kbdc = atkbdc_open(data[0]); 419 if (state->kbdc == NULL) { 420 error = ENXIO; 421 goto bad; 422 } 423 kbd_init_struct(kbd, ATKBD_DRIVER_NAME, KB_OTHER, unit, flags, 424 0, 0); 425 bcopy(&key_map, keymap, sizeof(key_map)); 426 bcopy(&accent_map, accmap, sizeof(accent_map)); 427 bcopy(fkey_tab, fkeymap, 428 imin(fkeymap_size * sizeof(fkeymap[0]), sizeof(fkey_tab))); 429 kbd_set_maps(kbd, keymap, accmap, fkeymap, fkeymap_size); 430 kbd->kb_data = (void *)state; 431 432 if (probe_keyboard(state->kbdc, flags)) { /* shouldn't happen */ 433 if (flags & KB_CONF_FAIL_IF_NO_KBD) { 434 error = ENXIO; 435 goto bad; 436 } 437 } else { 438 KBD_FOUND_DEVICE(kbd); 439 } 440 atkbd_clear_state(kbd); 441 state->ks_mode = K_XLATE; 442 /* 443 * FIXME: set the initial value for lock keys in ks_state 444 * according to the BIOS data? 445 */ 446 KBD_PROBE_DONE(kbd); 447 } 448 if (!KBD_IS_INITIALIZED(kbd) && !(flags & KB_CONF_PROBE_ONLY)) { 449 kbd->kb_config = flags & ~KB_CONF_PROBE_ONLY; 450 if (KBD_HAS_DEVICE(kbd) 451 && init_keyboard(state->kbdc, &kbd->kb_type, kbd->kb_config) 452 && (kbd->kb_config & KB_CONF_FAIL_IF_NO_KBD)) { 453 kbd_unregister(kbd); 454 error = ENXIO; 455 goto bad; 456 } 457 atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state); 458 set_typematic(kbd); 459 delay[0] = kbd->kb_delay1; 460 delay[1] = kbd->kb_delay2; 461 atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay); 462 463 #ifdef EVDEV_SUPPORT 464 /* register as evdev provider on first init */ 465 if (state->ks_evdev == NULL) { 466 snprintf(phys_loc, sizeof(phys_loc), "atkbd%d", unit); 467 evdev = evdev_alloc(); 468 evdev_set_name(evdev, "AT keyboard"); 469 evdev_set_phys(evdev, phys_loc); 470 evdev_set_id(evdev, BUS_I8042, PS2_KEYBOARD_VENDOR, 471 PS2_KEYBOARD_PRODUCT, 0); 472 evdev_set_methods(evdev, kbd, &atkbd_evdev_methods); 473 evdev_support_event(evdev, EV_SYN); 474 evdev_support_event(evdev, EV_KEY); 475 evdev_support_event(evdev, EV_LED); 476 evdev_support_event(evdev, EV_REP); 477 evdev_support_all_known_keys(evdev); 478 evdev_support_led(evdev, LED_NUML); 479 evdev_support_led(evdev, LED_CAPSL); 480 evdev_support_led(evdev, LED_SCROLLL); 481 482 if (evdev_register(evdev)) 483 evdev_free(evdev); 484 else 485 state->ks_evdev = evdev; 486 state->ks_evdev_state = 0; 487 } 488 #endif 489 490 KBD_INIT_DONE(kbd); 491 } 492 if (!KBD_IS_CONFIGURED(kbd)) { 493 if (kbd_register(kbd) < 0) { 494 error = ENXIO; 495 goto bad; 496 } 497 KBD_CONFIG_DONE(kbd); 498 } 499 500 return 0; 501 bad: 502 if (needfree) { 503 if (state != NULL) 504 free(state, M_DEVBUF); 505 if (keymap != NULL) 506 free(keymap, M_DEVBUF); 507 if (accmap != NULL) 508 free(accmap, M_DEVBUF); 509 if (fkeymap != NULL) 510 free(fkeymap, M_DEVBUF); 511 if (kbd != NULL) { 512 free(kbd, M_DEVBUF); 513 *kbdp = NULL; /* insure ref doesn't leak to caller */ 514 } 515 } 516 return error; 517 } 518 519 /* finish using this keyboard */ 520 static int 521 atkbd_term(keyboard_t *kbd) 522 { 523 atkbd_state_t *state = (atkbd_state_t *)kbd->kb_data; 524 525 kbd_unregister(kbd); 526 callout_drain(&state->ks_timer); 527 return 0; 528 } 529 530 /* keyboard interrupt routine */ 531 static int 532 atkbd_intr(keyboard_t *kbd, void *arg) 533 { 534 atkbd_state_t *state = (atkbd_state_t *)kbd->kb_data; 535 int delay[2]; 536 int c; 537 538 if (!KBD_HAS_DEVICE(kbd)) { 539 /* 540 * The keyboard was not detected before; 541 * it must have been reconnected! 542 */ 543 init_keyboard(state->kbdc, &kbd->kb_type, kbd->kb_config); 544 KBD_FOUND_DEVICE(kbd); 545 atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state); 546 set_typematic(kbd); 547 delay[0] = kbd->kb_delay1; 548 delay[1] = kbd->kb_delay2; 549 atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay); 550 } 551 552 if (state->ks_polling) 553 return 0; 554 555 if (KBD_IS_ACTIVE(kbd) && KBD_IS_BUSY(kbd)) { 556 /* let the callback function to process the input */ 557 (*kbd->kb_callback.kc_func)(kbd, KBDIO_KEYINPUT, 558 kbd->kb_callback.kc_arg); 559 } else { 560 /* read and discard the input; no one is waiting for input */ 561 do { 562 c = atkbd_read_char(kbd, FALSE); 563 } while (c != NOKEY); 564 } 565 return 0; 566 } 567 568 /* test the interface to the device */ 569 static int 570 atkbd_test_if(keyboard_t *kbd) 571 { 572 int error; 573 int s; 574 575 error = 0; 576 empty_both_buffers(((atkbd_state_t *)kbd->kb_data)->kbdc, 10); 577 s = spltty(); 578 if (!test_controller(((atkbd_state_t *)kbd->kb_data)->kbdc)) 579 error = EIO; 580 else if (test_kbd_port(((atkbd_state_t *)kbd->kb_data)->kbdc) != 0) 581 error = EIO; 582 splx(s); 583 584 return error; 585 } 586 587 /* 588 * Enable the access to the device; until this function is called, 589 * the client cannot read from the keyboard. 590 */ 591 static int 592 atkbd_enable(keyboard_t *kbd) 593 { 594 int s; 595 596 s = spltty(); 597 KBD_ACTIVATE(kbd); 598 splx(s); 599 return 0; 600 } 601 602 /* disallow the access to the device */ 603 static int 604 atkbd_disable(keyboard_t *kbd) 605 { 606 int s; 607 608 s = spltty(); 609 KBD_DEACTIVATE(kbd); 610 splx(s); 611 return 0; 612 } 613 614 /* read one byte from the keyboard if it's allowed */ 615 static int 616 atkbd_read(keyboard_t *kbd, int wait) 617 { 618 int c; 619 620 if (wait) 621 c = read_kbd_data(((atkbd_state_t *)kbd->kb_data)->kbdc); 622 else 623 c = read_kbd_data_no_wait(((atkbd_state_t *)kbd->kb_data)->kbdc); 624 if (c != -1) 625 ++kbd->kb_count; 626 return (KBD_IS_ACTIVE(kbd) ? c : -1); 627 } 628 629 /* check if data is waiting */ 630 static int 631 atkbd_check(keyboard_t *kbd) 632 { 633 if (!KBD_IS_ACTIVE(kbd)) 634 return FALSE; 635 return kbdc_data_ready(((atkbd_state_t *)kbd->kb_data)->kbdc); 636 } 637 638 /* read char from the keyboard */ 639 static u_int 640 atkbd_read_char(keyboard_t *kbd, int wait) 641 { 642 atkbd_state_t *state; 643 u_int action; 644 int scancode; 645 int keycode; 646 647 state = (atkbd_state_t *)kbd->kb_data; 648 next_code: 649 /* do we have a composed char to return? */ 650 if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0)) { 651 action = state->ks_composed_char; 652 state->ks_composed_char = 0; 653 if (action > UCHAR_MAX) 654 return ERRKEY; 655 return action; 656 } 657 658 /* see if there is something in the keyboard port */ 659 if (wait) { 660 do { 661 scancode = read_kbd_data(state->kbdc); 662 } while (scancode == -1); 663 } else { 664 scancode = read_kbd_data_no_wait(state->kbdc); 665 if (scancode == -1) 666 return NOKEY; 667 } 668 ++kbd->kb_count; 669 670 #if KBDIO_DEBUG >= 10 671 printf("atkbd_read_char(): scancode:0x%x\n", scancode); 672 #endif 673 674 #ifdef EVDEV_SUPPORT 675 /* push evdev event */ 676 if (evdev_rcpt_mask & EVDEV_RCPT_HW_KBD && state->ks_evdev != NULL) { 677 keycode = evdev_scancode2key(&state->ks_evdev_state, 678 scancode); 679 680 if (keycode != KEY_RESERVED) { 681 evdev_push_event(state->ks_evdev, EV_KEY, 682 (uint16_t)keycode, scancode & 0x80 ? 0 : 1); 683 evdev_sync(state->ks_evdev); 684 } 685 } 686 #endif 687 688 /* return the byte as is for the K_RAW mode */ 689 if (state->ks_mode == K_RAW) 690 return scancode; 691 692 /* translate the scan code into a keycode */ 693 keycode = scancode & 0x7F; 694 switch (state->ks_prefix) { 695 case 0x00: /* normal scancode */ 696 switch(scancode) { 697 case 0xB8: /* left alt (compose key) released */ 698 if (state->ks_flags & COMPOSE) { 699 state->ks_flags &= ~COMPOSE; 700 if (state->ks_composed_char > UCHAR_MAX) 701 state->ks_composed_char = 0; 702 } 703 break; 704 case 0x38: /* left alt (compose key) pressed */ 705 if (!(state->ks_flags & COMPOSE)) { 706 state->ks_flags |= COMPOSE; 707 state->ks_composed_char = 0; 708 } 709 break; 710 case 0xE0: 711 case 0xE1: 712 state->ks_prefix = scancode; 713 goto next_code; 714 } 715 break; 716 case 0xE0: /* 0xE0 prefix */ 717 state->ks_prefix = 0; 718 switch (keycode) { 719 case 0x1C: /* right enter key */ 720 keycode = 0x59; 721 break; 722 case 0x1D: /* right ctrl key */ 723 keycode = 0x5A; 724 break; 725 case 0x35: /* keypad divide key */ 726 keycode = 0x5B; 727 break; 728 case 0x37: /* print scrn key */ 729 keycode = 0x5C; 730 break; 731 case 0x38: /* right alt key (alt gr) */ 732 keycode = 0x5D; 733 break; 734 case 0x46: /* ctrl-pause/break on AT 101 (see below) */ 735 keycode = 0x68; 736 break; 737 case 0x47: /* grey home key */ 738 keycode = 0x5E; 739 break; 740 case 0x48: /* grey up arrow key */ 741 keycode = 0x5F; 742 break; 743 case 0x49: /* grey page up key */ 744 keycode = 0x60; 745 break; 746 case 0x4B: /* grey left arrow key */ 747 keycode = 0x61; 748 break; 749 case 0x4D: /* grey right arrow key */ 750 keycode = 0x62; 751 break; 752 case 0x4F: /* grey end key */ 753 keycode = 0x63; 754 break; 755 case 0x50: /* grey down arrow key */ 756 keycode = 0x64; 757 break; 758 case 0x51: /* grey page down key */ 759 keycode = 0x65; 760 break; 761 case 0x52: /* grey insert key */ 762 keycode = 0x66; 763 break; 764 case 0x53: /* grey delete key */ 765 keycode = 0x67; 766 break; 767 /* the following 3 are only used on the MS "Natural" keyboard */ 768 case 0x5b: /* left Window key */ 769 keycode = 0x69; 770 break; 771 case 0x5c: /* right Window key */ 772 keycode = 0x6a; 773 break; 774 case 0x5d: /* menu key */ 775 keycode = 0x6b; 776 break; 777 case 0x5e: /* power key */ 778 keycode = 0x6d; 779 break; 780 case 0x5f: /* sleep key */ 781 keycode = 0x6e; 782 break; 783 case 0x63: /* wake key */ 784 keycode = 0x6f; 785 break; 786 default: /* ignore everything else */ 787 goto next_code; 788 } 789 break; 790 case 0xE1: /* 0xE1 prefix */ 791 /* 792 * The pause/break key on the 101 keyboard produces: 793 * E1-1D-45 E1-9D-C5 794 * Ctrl-pause/break produces: 795 * E0-46 E0-C6 (See above.) 796 */ 797 state->ks_prefix = 0; 798 if (keycode == 0x1D) 799 state->ks_prefix = 0x1D; 800 goto next_code; 801 /* NOT REACHED */ 802 case 0x1D: /* pause / break */ 803 state->ks_prefix = 0; 804 if (keycode != 0x45) 805 goto next_code; 806 keycode = 0x68; 807 break; 808 } 809 810 if (kbd->kb_type == KB_84) { 811 switch (keycode) { 812 case 0x37: /* *(numpad)/print screen */ 813 if (state->ks_flags & SHIFTS) 814 keycode = 0x5c; /* print screen */ 815 break; 816 case 0x45: /* num lock/pause */ 817 if (state->ks_flags & CTLS) 818 keycode = 0x68; /* pause */ 819 break; 820 case 0x46: /* scroll lock/break */ 821 if (state->ks_flags & CTLS) 822 keycode = 0x6c; /* break */ 823 break; 824 } 825 } else if (kbd->kb_type == KB_101) { 826 switch (keycode) { 827 case 0x5c: /* print screen */ 828 if (state->ks_flags & ALTS) 829 keycode = 0x54; /* sysrq */ 830 break; 831 case 0x68: /* pause/break */ 832 if (state->ks_flags & CTLS) 833 keycode = 0x6c; /* break */ 834 break; 835 } 836 } 837 838 /* return the key code in the K_CODE mode */ 839 if (state->ks_mode == K_CODE) 840 return (keycode | (scancode & 0x80)); 841 842 /* compose a character code */ 843 if (state->ks_flags & COMPOSE) { 844 switch (keycode | (scancode & 0x80)) { 845 /* key pressed, process it */ 846 case 0x47: case 0x48: case 0x49: /* keypad 7,8,9 */ 847 state->ks_composed_char *= 10; 848 state->ks_composed_char += keycode - 0x40; 849 if (state->ks_composed_char > UCHAR_MAX) 850 return ERRKEY; 851 goto next_code; 852 case 0x4B: case 0x4C: case 0x4D: /* keypad 4,5,6 */ 853 state->ks_composed_char *= 10; 854 state->ks_composed_char += keycode - 0x47; 855 if (state->ks_composed_char > UCHAR_MAX) 856 return ERRKEY; 857 goto next_code; 858 case 0x4F: case 0x50: case 0x51: /* keypad 1,2,3 */ 859 state->ks_composed_char *= 10; 860 state->ks_composed_char += keycode - 0x4E; 861 if (state->ks_composed_char > UCHAR_MAX) 862 return ERRKEY; 863 goto next_code; 864 case 0x52: /* keypad 0 */ 865 state->ks_composed_char *= 10; 866 if (state->ks_composed_char > UCHAR_MAX) 867 return ERRKEY; 868 goto next_code; 869 870 /* key released, no interest here */ 871 case 0xC7: case 0xC8: case 0xC9: /* keypad 7,8,9 */ 872 case 0xCB: case 0xCC: case 0xCD: /* keypad 4,5,6 */ 873 case 0xCF: case 0xD0: case 0xD1: /* keypad 1,2,3 */ 874 case 0xD2: /* keypad 0 */ 875 goto next_code; 876 877 case 0x38: /* left alt key */ 878 break; 879 880 default: 881 if (state->ks_composed_char > 0) { 882 state->ks_flags &= ~COMPOSE; 883 state->ks_composed_char = 0; 884 return ERRKEY; 885 } 886 break; 887 } 888 } 889 890 /* keycode to key action */ 891 action = genkbd_keyaction(kbd, keycode, scancode & 0x80, 892 &state->ks_state, &state->ks_accents); 893 if (action == NOKEY) 894 goto next_code; 895 else 896 return action; 897 } 898 899 /* check if char is waiting */ 900 static int 901 atkbd_check_char(keyboard_t *kbd) 902 { 903 atkbd_state_t *state; 904 905 if (!KBD_IS_ACTIVE(kbd)) 906 return FALSE; 907 state = (atkbd_state_t *)kbd->kb_data; 908 if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0)) 909 return TRUE; 910 return kbdc_data_ready(state->kbdc); 911 } 912 913 /* some useful control functions */ 914 static int 915 atkbd_ioctl(keyboard_t *kbd, u_long cmd, caddr_t arg) 916 { 917 /* translate LED_XXX bits into the device specific bits */ 918 static u_char ledmap[8] = { 919 0, 4, 2, 6, 1, 5, 3, 7, 920 }; 921 atkbd_state_t *state = kbd->kb_data; 922 int error; 923 int s; 924 int i; 925 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 926 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 927 int ival; 928 #endif 929 930 s = spltty(); 931 switch (cmd) { 932 933 case KDGKBMODE: /* get keyboard mode */ 934 *(int *)arg = state->ks_mode; 935 break; 936 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 937 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 938 case _IO('K', 7): 939 ival = IOCPARM_IVAL(arg); 940 arg = (caddr_t)&ival; 941 /* FALLTHROUGH */ 942 #endif 943 case KDSKBMODE: /* set keyboard mode */ 944 switch (*(int *)arg) { 945 case K_XLATE: 946 if (state->ks_mode != K_XLATE) { 947 /* make lock key state and LED state match */ 948 state->ks_state &= ~LOCK_MASK; 949 state->ks_state |= KBD_LED_VAL(kbd); 950 } 951 /* FALLTHROUGH */ 952 case K_RAW: 953 case K_CODE: 954 if (state->ks_mode != *(int *)arg) { 955 atkbd_clear_state(kbd); 956 state->ks_mode = *(int *)arg; 957 } 958 break; 959 default: 960 splx(s); 961 return EINVAL; 962 } 963 break; 964 965 case KDGETLED: /* get keyboard LED */ 966 *(int *)arg = KBD_LED_VAL(kbd); 967 break; 968 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 969 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 970 case _IO('K', 66): 971 ival = IOCPARM_IVAL(arg); 972 arg = (caddr_t)&ival; 973 /* FALLTHROUGH */ 974 #endif 975 case KDSETLED: /* set keyboard LED */ 976 /* NOTE: lock key state in ks_state won't be changed */ 977 if (*(int *)arg & ~LOCK_MASK) { 978 splx(s); 979 return EINVAL; 980 } 981 i = *(int *)arg; 982 /* replace CAPS LED with ALTGR LED for ALTGR keyboards */ 983 if (state->ks_mode == K_XLATE && 984 kbd->kb_keymap->n_keys > ALTGR_OFFSET) { 985 if (i & ALKED) 986 i |= CLKED; 987 else 988 i &= ~CLKED; 989 } 990 if (KBD_HAS_DEVICE(kbd)) { 991 error = write_kbd(state->kbdc, KBDC_SET_LEDS, 992 ledmap[i & LED_MASK]); 993 if (error) { 994 splx(s); 995 return error; 996 } 997 } 998 #ifdef EVDEV_SUPPORT 999 /* push LED states to evdev */ 1000 if (state->ks_evdev != NULL && 1001 evdev_rcpt_mask & EVDEV_RCPT_HW_KBD) 1002 evdev_push_leds(state->ks_evdev, *(int *)arg); 1003 #endif 1004 KBD_LED_VAL(kbd) = *(int *)arg; 1005 break; 1006 1007 case KDGKBSTATE: /* get lock key state */ 1008 *(int *)arg = state->ks_state & LOCK_MASK; 1009 break; 1010 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 1011 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 1012 case _IO('K', 20): 1013 ival = IOCPARM_IVAL(arg); 1014 arg = (caddr_t)&ival; 1015 /* FALLTHROUGH */ 1016 #endif 1017 case KDSKBSTATE: /* set lock key state */ 1018 if (*(int *)arg & ~LOCK_MASK) { 1019 splx(s); 1020 return EINVAL; 1021 } 1022 state->ks_state &= ~LOCK_MASK; 1023 state->ks_state |= *(int *)arg; 1024 splx(s); 1025 /* set LEDs and quit */ 1026 return atkbd_ioctl(kbd, KDSETLED, arg); 1027 1028 case KDSETREPEAT: /* set keyboard repeat rate (new interface) */ 1029 splx(s); 1030 if (!KBD_HAS_DEVICE(kbd)) 1031 return 0; 1032 i = typematic(((int *)arg)[0], ((int *)arg)[1]); 1033 error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, i); 1034 if (error == 0) { 1035 kbd->kb_delay1 = typematic_delay(i); 1036 kbd->kb_delay2 = typematic_rate(i); 1037 #ifdef EVDEV_SUPPORT 1038 if (state->ks_evdev != NULL && 1039 evdev_rcpt_mask & EVDEV_RCPT_HW_KBD) 1040 evdev_push_repeats(state->ks_evdev, kbd); 1041 #endif 1042 } 1043 return error; 1044 1045 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 1046 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 1047 case _IO('K', 67): 1048 ival = IOCPARM_IVAL(arg); 1049 arg = (caddr_t)&ival; 1050 /* FALLTHROUGH */ 1051 #endif 1052 case KDSETRAD: /* set keyboard repeat rate (old interface) */ 1053 splx(s); 1054 if (!KBD_HAS_DEVICE(kbd)) 1055 return 0; 1056 error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, *(int *)arg); 1057 if (error == 0) { 1058 kbd->kb_delay1 = typematic_delay(*(int *)arg); 1059 kbd->kb_delay2 = typematic_rate(*(int *)arg); 1060 #ifdef EVDEV_SUPPORT 1061 if (state->ks_evdev != NULL && 1062 evdev_rcpt_mask & EVDEV_RCPT_HW_KBD) 1063 evdev_push_repeats(state->ks_evdev, kbd); 1064 #endif 1065 } 1066 return error; 1067 1068 case PIO_KEYMAP: /* set keyboard translation table */ 1069 case OPIO_KEYMAP: /* set keyboard translation table (compat) */ 1070 case PIO_KEYMAPENT: /* set keyboard translation table entry */ 1071 case PIO_DEADKEYMAP: /* set accent key translation table */ 1072 state->ks_accents = 0; 1073 /* FALLTHROUGH */ 1074 default: 1075 splx(s); 1076 return genkbd_commonioctl(kbd, cmd, arg); 1077 } 1078 1079 splx(s); 1080 return 0; 1081 } 1082 1083 /* lock the access to the keyboard */ 1084 static int 1085 atkbd_lock(keyboard_t *kbd, int lock) 1086 { 1087 return kbdc_lock(((atkbd_state_t *)kbd->kb_data)->kbdc, lock); 1088 } 1089 1090 /* clear the internal state of the keyboard */ 1091 static void 1092 atkbd_clear_state(keyboard_t *kbd) 1093 { 1094 atkbd_state_t *state; 1095 1096 state = (atkbd_state_t *)kbd->kb_data; 1097 state->ks_flags = 0; 1098 state->ks_polling = 0; 1099 state->ks_state &= LOCK_MASK; /* preserve locking key state */ 1100 state->ks_accents = 0; 1101 state->ks_composed_char = 0; 1102 #if 0 1103 state->ks_prefix = 0; /* XXX */ 1104 #endif 1105 } 1106 1107 /* save the internal state */ 1108 static int 1109 atkbd_get_state(keyboard_t *kbd, void *buf, size_t len) 1110 { 1111 if (len == 0) 1112 return sizeof(atkbd_state_t); 1113 if (len < sizeof(atkbd_state_t)) 1114 return -1; 1115 bcopy(kbd->kb_data, buf, sizeof(atkbd_state_t)); 1116 return 0; 1117 } 1118 1119 /* set the internal state */ 1120 static int 1121 atkbd_set_state(keyboard_t *kbd, void *buf, size_t len) 1122 { 1123 if (len < sizeof(atkbd_state_t)) 1124 return ENOMEM; 1125 if (((atkbd_state_t *)kbd->kb_data)->kbdc 1126 != ((atkbd_state_t *)buf)->kbdc) 1127 return ENOMEM; 1128 bcopy(buf, kbd->kb_data, sizeof(atkbd_state_t)); 1129 return 0; 1130 } 1131 1132 static int 1133 atkbd_poll(keyboard_t *kbd, int on) 1134 { 1135 atkbd_state_t *state; 1136 int s; 1137 1138 state = (atkbd_state_t *)kbd->kb_data; 1139 s = spltty(); 1140 if (on) 1141 ++state->ks_polling; 1142 else 1143 --state->ks_polling; 1144 splx(s); 1145 return 0; 1146 } 1147 1148 static void 1149 atkbd_shutdown_final(void *v) 1150 { 1151 #ifdef __sparc64__ 1152 keyboard_t *kbd = v; 1153 KBDC kbdc = ((atkbd_state_t *)kbd->kb_data)->kbdc; 1154 1155 /* 1156 * Turn off the translation in preparation for handing the keyboard 1157 * over to the OFW as the OBP driver doesn't use translation and 1158 * also doesn't disable it itself resulting in a broken keymap at 1159 * the boot prompt. Also disable the aux port and the interrupts as 1160 * the OBP driver doesn't use them, i.e. polls the keyboard. Not 1161 * disabling the interrupts doesn't cause real problems but the 1162 * responsiveness is a bit better when they are turned off. 1163 */ 1164 send_kbd_command(kbdc, KBDC_DISABLE_KBD); 1165 set_controller_command_byte(kbdc, 1166 KBD_AUX_CONTROL_BITS | KBD_KBD_CONTROL_BITS | KBD_TRANSLATION, 1167 KBD_DISABLE_AUX_PORT | KBD_DISABLE_KBD_INT | KBD_ENABLE_KBD_PORT); 1168 send_kbd_command(kbdc, KBDC_ENABLE_KBD); 1169 #endif 1170 } 1171 1172 static int 1173 atkbd_reset(KBDC kbdc, int flags, int c) 1174 { 1175 /* reset keyboard hardware */ 1176 if (!(flags & KB_CONF_NO_RESET) && !reset_kbd(kbdc)) { 1177 /* 1178 * KEYBOARD ERROR 1179 * Keyboard reset may fail either because the keyboard 1180 * doen't exist, or because the keyboard doesn't pass 1181 * the self-test, or the keyboard controller on the 1182 * motherboard and the keyboard somehow fail to shake hands. 1183 * It is just possible, particularly in the last case, 1184 * that the keyboard controller may be left in a hung state. 1185 * test_controller() and test_kbd_port() appear to bring 1186 * the keyboard controller back (I don't know why and how, 1187 * though.) 1188 */ 1189 empty_both_buffers(kbdc, 10); 1190 test_controller(kbdc); 1191 test_kbd_port(kbdc); 1192 /* 1193 * We could disable the keyboard port and interrupt... but, 1194 * the keyboard may still exist (see above). 1195 */ 1196 set_controller_command_byte(kbdc, 1197 ALLOW_DISABLE_KBD(kbdc) ? 0xff : KBD_KBD_CONTROL_BITS, c); 1198 if (bootverbose) 1199 printf("atkbd: failed to reset the keyboard.\n"); 1200 return (EIO); 1201 } 1202 return (0); 1203 } 1204 1205 /* local functions */ 1206 1207 static int 1208 set_typematic(keyboard_t *kbd) 1209 { 1210 int val, error; 1211 atkbd_state_t *state = kbd->kb_data; 1212 1213 val = typematic(DEFAULT_DELAY, DEFAULT_RATE); 1214 error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, val); 1215 if (error == 0) { 1216 kbd->kb_delay1 = typematic_delay(val); 1217 kbd->kb_delay2 = typematic_rate(val); 1218 } 1219 1220 return (error); 1221 } 1222 1223 static int 1224 setup_kbd_port(KBDC kbdc, int port, int intr) 1225 { 1226 if (!set_controller_command_byte(kbdc, 1227 KBD_KBD_CONTROL_BITS, 1228 ((port) ? KBD_ENABLE_KBD_PORT : KBD_DISABLE_KBD_PORT) 1229 | ((intr) ? KBD_ENABLE_KBD_INT : KBD_DISABLE_KBD_INT))) 1230 return 1; 1231 return 0; 1232 } 1233 1234 static int 1235 get_kbd_echo(KBDC kbdc) 1236 { 1237 /* enable the keyboard port, but disable the keyboard intr. */ 1238 if (setup_kbd_port(kbdc, TRUE, FALSE)) 1239 /* CONTROLLER ERROR: there is very little we can do... */ 1240 return ENXIO; 1241 1242 /* see if something is present */ 1243 write_kbd_command(kbdc, KBDC_ECHO); 1244 if (read_kbd_data(kbdc) != KBD_ECHO) { 1245 empty_both_buffers(kbdc, 10); 1246 test_controller(kbdc); 1247 test_kbd_port(kbdc); 1248 return ENXIO; 1249 } 1250 1251 /* enable the keyboard port and intr. */ 1252 if (setup_kbd_port(kbdc, TRUE, TRUE)) { 1253 /* 1254 * CONTROLLER ERROR 1255 * This is serious; the keyboard intr is left disabled! 1256 */ 1257 return ENXIO; 1258 } 1259 1260 return 0; 1261 } 1262 1263 static int 1264 probe_keyboard(KBDC kbdc, int flags) 1265 { 1266 /* 1267 * Don't try to print anything in this function. The low-level 1268 * console may not have been initialized yet... 1269 */ 1270 int err; 1271 int c; 1272 int m; 1273 1274 if (!kbdc_lock(kbdc, TRUE)) { 1275 /* driver error? */ 1276 return ENXIO; 1277 } 1278 1279 /* temporarily block data transmission from the keyboard */ 1280 write_controller_command(kbdc, KBDC_DISABLE_KBD_PORT); 1281 1282 /* flush any noise in the buffer */ 1283 empty_both_buffers(kbdc, 100); 1284 1285 /* save the current keyboard controller command byte */ 1286 m = kbdc_get_device_mask(kbdc) & ~KBD_KBD_CONTROL_BITS; 1287 c = get_controller_command_byte(kbdc); 1288 if (c == -1) { 1289 /* CONTROLLER ERROR */ 1290 kbdc_set_device_mask(kbdc, m); 1291 kbdc_lock(kbdc, FALSE); 1292 return ENXIO; 1293 } 1294 1295 /* 1296 * The keyboard may have been screwed up by the boot block. 1297 * We may just be able to recover from error by testing the controller 1298 * and the keyboard port. The controller command byte needs to be 1299 * saved before this recovery operation, as some controllers seem 1300 * to set the command byte to particular values. 1301 */ 1302 test_controller(kbdc); 1303 if (!(flags & KB_CONF_NO_PROBE_TEST)) 1304 test_kbd_port(kbdc); 1305 1306 err = get_kbd_echo(kbdc); 1307 1308 /* 1309 * Even if the keyboard doesn't seem to be present (err != 0), 1310 * we shall enable the keyboard port and interrupt so that 1311 * the driver will be operable when the keyboard is attached 1312 * to the system later. It is NOT recommended to hot-plug 1313 * the AT keyboard, but many people do so... 1314 */ 1315 kbdc_set_device_mask(kbdc, m | KBD_KBD_CONTROL_BITS); 1316 setup_kbd_port(kbdc, TRUE, TRUE); 1317 #if 0 1318 if (err == 0) { 1319 kbdc_set_device_mask(kbdc, m | KBD_KBD_CONTROL_BITS); 1320 } else { 1321 /* try to restore the command byte as before */ 1322 set_controller_command_byte(kbdc, 1323 ALLOW_DISABLE_KBD(kbdc) ? 0xff : KBD_KBD_CONTROL_BITS, c); 1324 kbdc_set_device_mask(kbdc, m); 1325 } 1326 #endif 1327 1328 kbdc_lock(kbdc, FALSE); 1329 return (HAS_QUIRK(kbdc, KBDC_QUIRK_IGNORE_PROBE_RESULT) ? 0 : err); 1330 } 1331 1332 static int 1333 init_keyboard(KBDC kbdc, int *type, int flags) 1334 { 1335 int codeset; 1336 int id; 1337 int c; 1338 1339 if (!kbdc_lock(kbdc, TRUE)) { 1340 /* driver error? */ 1341 return EIO; 1342 } 1343 1344 /* temporarily block data transmission from the keyboard */ 1345 write_controller_command(kbdc, KBDC_DISABLE_KBD_PORT); 1346 1347 /* save the current controller command byte */ 1348 empty_both_buffers(kbdc, 200); 1349 c = get_controller_command_byte(kbdc); 1350 if (c == -1) { 1351 /* CONTROLLER ERROR */ 1352 kbdc_lock(kbdc, FALSE); 1353 printf("atkbd: unable to get the current command byte value.\n"); 1354 return EIO; 1355 } 1356 if (bootverbose) 1357 printf("atkbd: the current kbd controller command byte %04x\n", 1358 c); 1359 #if 0 1360 /* override the keyboard lock switch */ 1361 c |= KBD_OVERRIDE_KBD_LOCK; 1362 #endif 1363 1364 /* enable the keyboard port, but disable the keyboard intr. */ 1365 if (setup_kbd_port(kbdc, TRUE, FALSE)) { 1366 /* CONTROLLER ERROR: there is very little we can do... */ 1367 printf("atkbd: unable to set the command byte.\n"); 1368 kbdc_lock(kbdc, FALSE); 1369 return EIO; 1370 } 1371 1372 if (HAS_QUIRK(kbdc, KBDC_QUIRK_RESET_AFTER_PROBE) && 1373 atkbd_reset(kbdc, flags, c)) { 1374 kbdc_lock(kbdc, FALSE); 1375 return EIO; 1376 } 1377 1378 /* 1379 * Check if we have an XT keyboard before we attempt to reset it. 1380 * The procedure assumes that the keyboard and the controller have 1381 * been set up properly by BIOS and have not been messed up 1382 * during the boot process. 1383 */ 1384 codeset = -1; 1385 if (flags & KB_CONF_ALT_SCANCODESET) 1386 /* the user says there is a XT keyboard */ 1387 codeset = 1; 1388 #ifdef KBD_DETECT_XT_KEYBOARD 1389 else if ((c & KBD_TRANSLATION) == 0) { 1390 /* SET_SCANCODE_SET is not always supported; ignore error */ 1391 if (send_kbd_command_and_data(kbdc, KBDC_SET_SCANCODE_SET, 0) 1392 == KBD_ACK) 1393 codeset = read_kbd_data(kbdc); 1394 } 1395 if (bootverbose) 1396 printf("atkbd: scancode set %d\n", codeset); 1397 #endif /* KBD_DETECT_XT_KEYBOARD */ 1398 1399 *type = KB_OTHER; 1400 id = get_kbd_id(kbdc); 1401 switch(id) { 1402 case 0x41ab: /* 101/102/... Enhanced */ 1403 case 0x83ab: /* ditto */ 1404 case 0x54ab: /* SpaceSaver */ 1405 case 0x84ab: /* ditto */ 1406 #if 0 1407 case 0x90ab: /* 'G' */ 1408 case 0x91ab: /* 'P' */ 1409 case 0x92ab: /* 'A' */ 1410 #endif 1411 *type = KB_101; 1412 break; 1413 case -1: /* AT 84 keyboard doesn't return ID */ 1414 *type = KB_84; 1415 break; 1416 default: 1417 break; 1418 } 1419 if (bootverbose) 1420 printf("atkbd: keyboard ID 0x%x (%d)\n", id, *type); 1421 1422 if (!HAS_QUIRK(kbdc, KBDC_QUIRK_RESET_AFTER_PROBE) && 1423 atkbd_reset(kbdc, flags, c)) { 1424 kbdc_lock(kbdc, FALSE); 1425 return EIO; 1426 } 1427 1428 /* 1429 * Allow us to set the XT_KEYBD flag so that keyboards 1430 * such as those on the IBM ThinkPad laptop computers can be used 1431 * with the standard console driver. 1432 */ 1433 if (codeset == 1) { 1434 if (send_kbd_command_and_data(kbdc, 1435 KBDC_SET_SCANCODE_SET, codeset) == KBD_ACK) { 1436 /* XT kbd doesn't need scan code translation */ 1437 c &= ~KBD_TRANSLATION; 1438 } else { 1439 /* 1440 * KEYBOARD ERROR 1441 * The XT kbd isn't usable unless the proper scan 1442 * code set is selected. 1443 */ 1444 set_controller_command_byte(kbdc, ALLOW_DISABLE_KBD(kbdc) 1445 ? 0xff : KBD_KBD_CONTROL_BITS, c); 1446 kbdc_lock(kbdc, FALSE); 1447 printf("atkbd: unable to set the XT keyboard mode.\n"); 1448 return EIO; 1449 } 1450 } 1451 1452 #if defined(__sparc64__) 1453 if (send_kbd_command_and_data( 1454 kbdc, KBDC_SET_SCANCODE_SET, 2) != KBD_ACK) { 1455 printf("atkbd: can't set translation.\n"); 1456 } 1457 c |= KBD_TRANSLATION; 1458 #endif 1459 1460 /* 1461 * Some keyboards require a SETLEDS command to be sent after 1462 * the reset command before they will send keystrokes to us 1463 */ 1464 if (HAS_QUIRK(kbdc, KBDC_QUIRK_SETLEDS_ON_INIT) && 1465 send_kbd_command_and_data(kbdc, KBDC_SET_LEDS, 0) != KBD_ACK) { 1466 printf("atkbd: setleds failed\n"); 1467 } 1468 if (!ALLOW_DISABLE_KBD(kbdc)) 1469 send_kbd_command(kbdc, KBDC_ENABLE_KBD); 1470 1471 /* enable the keyboard port and intr. */ 1472 if (!set_controller_command_byte(kbdc, 1473 KBD_KBD_CONTROL_BITS | KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK, 1474 (c & (KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK)) 1475 | KBD_ENABLE_KBD_PORT | KBD_ENABLE_KBD_INT)) { 1476 /* 1477 * CONTROLLER ERROR 1478 * This is serious; we are left with the disabled 1479 * keyboard intr. 1480 */ 1481 set_controller_command_byte(kbdc, ALLOW_DISABLE_KBD(kbdc) 1482 ? 0xff : (KBD_KBD_CONTROL_BITS | KBD_TRANSLATION | 1483 KBD_OVERRIDE_KBD_LOCK), c); 1484 kbdc_lock(kbdc, FALSE); 1485 printf("atkbd: unable to enable the keyboard port and intr.\n"); 1486 return EIO; 1487 } 1488 1489 kbdc_lock(kbdc, FALSE); 1490 return 0; 1491 } 1492 1493 static int 1494 write_kbd(KBDC kbdc, int command, int data) 1495 { 1496 int s; 1497 1498 /* prevent the timeout routine from polling the keyboard */ 1499 if (!kbdc_lock(kbdc, TRUE)) 1500 return EBUSY; 1501 1502 /* disable the keyboard and mouse interrupt */ 1503 s = spltty(); 1504 #if 0 1505 c = get_controller_command_byte(kbdc); 1506 if ((c == -1) 1507 || !set_controller_command_byte(kbdc, 1508 kbdc_get_device_mask(kbdc), 1509 KBD_DISABLE_KBD_PORT | KBD_DISABLE_KBD_INT 1510 | KBD_DISABLE_AUX_PORT | KBD_DISABLE_AUX_INT)) { 1511 /* CONTROLLER ERROR */ 1512 kbdc_lock(kbdc, FALSE); 1513 splx(s); 1514 return EIO; 1515 } 1516 /* 1517 * Now that the keyboard controller is told not to generate 1518 * the keyboard and mouse interrupts, call `splx()' to allow 1519 * the other tty interrupts. The clock interrupt may also occur, 1520 * but the timeout routine (`scrn_timer()') will be blocked 1521 * by the lock flag set via `kbdc_lock()' 1522 */ 1523 splx(s); 1524 #endif 1525 if (send_kbd_command_and_data(kbdc, command, data) != KBD_ACK) 1526 send_kbd_command(kbdc, KBDC_ENABLE_KBD); 1527 #if 0 1528 /* restore the interrupts */ 1529 if (!set_controller_command_byte(kbdc, kbdc_get_device_mask(kbdc), 1530 c & (KBD_KBD_CONTROL_BITS | KBD_AUX_CONTROL_BITS))) { 1531 /* CONTROLLER ERROR */ 1532 } 1533 #else 1534 splx(s); 1535 #endif 1536 kbdc_lock(kbdc, FALSE); 1537 1538 return 0; 1539 } 1540 1541 static int 1542 get_kbd_id(KBDC kbdc) 1543 { 1544 int id1, id2; 1545 1546 empty_both_buffers(kbdc, 10); 1547 id1 = id2 = -1; 1548 if (send_kbd_command(kbdc, KBDC_SEND_DEV_ID) != KBD_ACK) 1549 return -1; 1550 1551 DELAY(10000); /* 10 msec delay */ 1552 id1 = read_kbd_data(kbdc); 1553 if (id1 != -1) 1554 id2 = read_kbd_data(kbdc); 1555 1556 if ((id1 == -1) || (id2 == -1)) { 1557 empty_both_buffers(kbdc, 10); 1558 test_controller(kbdc); 1559 test_kbd_port(kbdc); 1560 return -1; 1561 } 1562 return ((id2 << 8) | id1); 1563 } 1564 1565 static int delays[] = { 250, 500, 750, 1000 }; 1566 static int rates[] = { 34, 38, 42, 46, 50, 55, 59, 63, 1567 68, 76, 84, 92, 100, 110, 118, 126, 1568 136, 152, 168, 184, 200, 220, 236, 252, 1569 272, 304, 336, 368, 400, 440, 472, 504 }; 1570 1571 static int 1572 typematic_delay(int i) 1573 { 1574 return delays[(i >> 5) & 3]; 1575 } 1576 1577 static int 1578 typematic_rate(int i) 1579 { 1580 return rates[i & 0x1f]; 1581 } 1582 1583 static int 1584 typematic(int delay, int rate) 1585 { 1586 int value; 1587 int i; 1588 1589 for (i = nitems(delays) - 1; i > 0; --i) { 1590 if (delay >= delays[i]) 1591 break; 1592 } 1593 value = i << 5; 1594 for (i = nitems(rates) - 1; i > 0; --i) { 1595 if (rate >= rates[i]) 1596 break; 1597 } 1598 value |= i; 1599 return value; 1600 }
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