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sys/dev/atkbdc/atkbd.c
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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: releng/12.0/sys/dev/atkbdc/atkbd.c 337721 2018-08-13 19:05:53Z wulf $"); 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 atkbd_probe, 235 atkbd_init, 236 atkbd_term, 237 atkbd_intr, 238 atkbd_test_if, 239 atkbd_enable, 240 atkbd_disable, 241 atkbd_read, 242 atkbd_check, 243 atkbd_read_char, 244 atkbd_check_char, 245 atkbd_ioctl, 246 atkbd_lock, 247 atkbd_clear_state, 248 atkbd_get_state, 249 atkbd_set_state, 250 genkbd_get_fkeystr, 251 atkbd_poll, 252 genkbd_diag, 253 }; 254 255 KEYBOARD_DRIVER(atkbd, atkbdsw, atkbd_configure); 256 257 /* local functions */ 258 static int set_typematic(keyboard_t *kbd); 259 static int setup_kbd_port(KBDC kbdc, int port, int intr); 260 static int get_kbd_echo(KBDC kbdc); 261 static int probe_keyboard(KBDC kbdc, int flags); 262 static int init_keyboard(KBDC kbdc, int *type, int flags); 263 static int write_kbd(KBDC kbdc, int command, int data); 264 static int get_kbd_id(KBDC kbdc); 265 static int typematic(int delay, int rate); 266 static int typematic_delay(int delay); 267 static int typematic_rate(int rate); 268 269 #ifdef EVDEV_SUPPORT 270 static evdev_event_t atkbd_ev_event; 271 272 static const struct evdev_methods atkbd_evdev_methods = { 273 .ev_event = atkbd_ev_event, 274 }; 275 #endif 276 277 /* local variables */ 278 279 /* the initial key map, accent map and fkey strings */ 280 #ifdef ATKBD_DFLT_KEYMAP 281 #define KBD_DFLT_KEYMAP 282 #include "atkbdmap.h" 283 #endif 284 #include <dev/kbd/kbdtables.h> 285 286 /* structures for the default keyboard */ 287 static keyboard_t default_kbd; 288 static atkbd_state_t default_kbd_state; 289 static keymap_t default_keymap; 290 static accentmap_t default_accentmap; 291 static fkeytab_t default_fkeytab[NUM_FKEYS]; 292 293 /* 294 * The back door to the keyboard driver! 295 * This function is called by the console driver, via the kbdio module, 296 * to tickle keyboard drivers when the low-level console is being initialized. 297 * Almost nothing in the kernel has been initialied yet. Try to probe 298 * keyboards if possible. 299 * NOTE: because of the way the low-level console is initialized, this routine 300 * may be called more than once!! 301 */ 302 static int 303 atkbd_configure(int flags) 304 { 305 keyboard_t *kbd; 306 int arg[2]; 307 int i; 308 309 /* 310 * Probe the keyboard controller, if not present or if the driver 311 * is disabled, unregister the keyboard if any. 312 */ 313 if (atkbdc_configure() != 0 || 314 resource_disabled("atkbd", ATKBD_DEFAULT)) { 315 i = kbd_find_keyboard(ATKBD_DRIVER_NAME, ATKBD_DEFAULT); 316 if (i >= 0) { 317 kbd = kbd_get_keyboard(i); 318 kbd_unregister(kbd); 319 kbd->kb_flags &= ~KB_REGISTERED; 320 } 321 return 0; 322 } 323 324 /* XXX: a kludge to obtain the device configuration flags */ 325 if (resource_int_value("atkbd", ATKBD_DEFAULT, "flags", &i) == 0) 326 flags |= i; 327 328 /* probe the default keyboard */ 329 arg[0] = -1; 330 arg[1] = -1; 331 kbd = NULL; 332 if (atkbd_probe(ATKBD_DEFAULT, arg, flags)) 333 return 0; 334 if (atkbd_init(ATKBD_DEFAULT, &kbd, arg, flags)) 335 return 0; 336 337 /* return the number of found keyboards */ 338 return 1; 339 } 340 341 /* low-level functions */ 342 343 /* detect a keyboard */ 344 static int 345 atkbd_probe(int unit, void *arg, int flags) 346 { 347 KBDC kbdc; 348 int *data = (int *)arg; /* data[0]: controller, data[1]: irq */ 349 350 /* XXX */ 351 if (unit == ATKBD_DEFAULT) { 352 if (KBD_IS_PROBED(&default_kbd)) 353 return 0; 354 } 355 356 kbdc = atkbdc_open(data[0]); 357 if (kbdc == NULL) 358 return ENXIO; 359 if (probe_keyboard(kbdc, flags)) { 360 if (flags & KB_CONF_FAIL_IF_NO_KBD) 361 return ENXIO; 362 } 363 return 0; 364 } 365 366 /* reset and initialize the device */ 367 static int 368 atkbd_init(int unit, keyboard_t **kbdp, void *arg, int flags) 369 { 370 keyboard_t *kbd; 371 atkbd_state_t *state; 372 keymap_t *keymap; 373 accentmap_t *accmap; 374 fkeytab_t *fkeymap; 375 int fkeymap_size; 376 int delay[2]; 377 int *data = (int *)arg; /* data[0]: controller, data[1]: irq */ 378 int error, needfree; 379 #ifdef EVDEV_SUPPORT 380 struct evdev_dev *evdev; 381 char phys_loc[8]; 382 #endif 383 384 /* XXX */ 385 if (unit == ATKBD_DEFAULT) { 386 *kbdp = kbd = &default_kbd; 387 if (KBD_IS_INITIALIZED(kbd) && KBD_IS_CONFIGURED(kbd)) 388 return 0; 389 state = &default_kbd_state; 390 keymap = &default_keymap; 391 accmap = &default_accentmap; 392 fkeymap = default_fkeytab; 393 fkeymap_size = nitems(default_fkeytab); 394 needfree = 0; 395 } else if (*kbdp == NULL) { 396 *kbdp = kbd = malloc(sizeof(*kbd), M_DEVBUF, M_NOWAIT | M_ZERO); 397 state = malloc(sizeof(*state), M_DEVBUF, M_NOWAIT | M_ZERO); 398 /* NB: these will always be initialized 'cuz !KBD_IS_PROBED */ 399 keymap = malloc(sizeof(key_map), M_DEVBUF, M_NOWAIT); 400 accmap = malloc(sizeof(accent_map), M_DEVBUF, M_NOWAIT); 401 fkeymap = malloc(sizeof(fkey_tab), M_DEVBUF, M_NOWAIT); 402 fkeymap_size = sizeof(fkey_tab)/sizeof(fkey_tab[0]); 403 needfree = 1; 404 if ((kbd == NULL) || (state == NULL) || (keymap == NULL) 405 || (accmap == NULL) || (fkeymap == NULL)) { 406 error = ENOMEM; 407 goto bad; 408 } 409 } else if (KBD_IS_INITIALIZED(*kbdp) && KBD_IS_CONFIGURED(*kbdp)) { 410 return 0; 411 } else { 412 kbd = *kbdp; 413 state = (atkbd_state_t *)kbd->kb_data; 414 bzero(state, sizeof(*state)); 415 keymap = kbd->kb_keymap; 416 accmap = kbd->kb_accentmap; 417 fkeymap = kbd->kb_fkeytab; 418 fkeymap_size = kbd->kb_fkeytab_size; 419 needfree = 0; 420 } 421 422 if (!KBD_IS_PROBED(kbd)) { 423 state->kbdc = atkbdc_open(data[0]); 424 if (state->kbdc == NULL) { 425 error = ENXIO; 426 goto bad; 427 } 428 kbd_init_struct(kbd, ATKBD_DRIVER_NAME, KB_OTHER, unit, flags, 429 0, 0); 430 bcopy(&key_map, keymap, sizeof(key_map)); 431 bcopy(&accent_map, accmap, sizeof(accent_map)); 432 bcopy(fkey_tab, fkeymap, 433 imin(fkeymap_size * sizeof(fkeymap[0]), sizeof(fkey_tab))); 434 kbd_set_maps(kbd, keymap, accmap, fkeymap, fkeymap_size); 435 kbd->kb_data = (void *)state; 436 437 if (probe_keyboard(state->kbdc, flags)) { /* shouldn't happen */ 438 if (flags & KB_CONF_FAIL_IF_NO_KBD) { 439 error = ENXIO; 440 goto bad; 441 } 442 } else { 443 KBD_FOUND_DEVICE(kbd); 444 } 445 atkbd_clear_state(kbd); 446 state->ks_mode = K_XLATE; 447 /* 448 * FIXME: set the initial value for lock keys in ks_state 449 * according to the BIOS data? 450 */ 451 KBD_PROBE_DONE(kbd); 452 } 453 if (!KBD_IS_INITIALIZED(kbd) && !(flags & KB_CONF_PROBE_ONLY)) { 454 kbd->kb_config = flags & ~KB_CONF_PROBE_ONLY; 455 if (KBD_HAS_DEVICE(kbd) 456 && init_keyboard(state->kbdc, &kbd->kb_type, kbd->kb_config) 457 && (kbd->kb_config & KB_CONF_FAIL_IF_NO_KBD)) { 458 kbd_unregister(kbd); 459 error = ENXIO; 460 goto bad; 461 } 462 atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state); 463 set_typematic(kbd); 464 delay[0] = kbd->kb_delay1; 465 delay[1] = kbd->kb_delay2; 466 atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay); 467 468 #ifdef EVDEV_SUPPORT 469 /* register as evdev provider on first init */ 470 if (state->ks_evdev == NULL) { 471 snprintf(phys_loc, sizeof(phys_loc), "atkbd%d", unit); 472 evdev = evdev_alloc(); 473 evdev_set_name(evdev, "AT keyboard"); 474 evdev_set_phys(evdev, phys_loc); 475 evdev_set_id(evdev, BUS_I8042, PS2_KEYBOARD_VENDOR, 476 PS2_KEYBOARD_PRODUCT, 0); 477 evdev_set_methods(evdev, kbd, &atkbd_evdev_methods); 478 evdev_support_event(evdev, EV_SYN); 479 evdev_support_event(evdev, EV_KEY); 480 evdev_support_event(evdev, EV_LED); 481 evdev_support_event(evdev, EV_REP); 482 evdev_support_all_known_keys(evdev); 483 evdev_support_led(evdev, LED_NUML); 484 evdev_support_led(evdev, LED_CAPSL); 485 evdev_support_led(evdev, LED_SCROLLL); 486 487 if (evdev_register(evdev)) 488 evdev_free(evdev); 489 else 490 state->ks_evdev = evdev; 491 state->ks_evdev_state = 0; 492 } 493 #endif 494 495 KBD_INIT_DONE(kbd); 496 } 497 if (!KBD_IS_CONFIGURED(kbd)) { 498 if (kbd_register(kbd) < 0) { 499 error = ENXIO; 500 goto bad; 501 } 502 KBD_CONFIG_DONE(kbd); 503 } 504 505 return 0; 506 bad: 507 if (needfree) { 508 if (state != NULL) 509 free(state, M_DEVBUF); 510 if (keymap != NULL) 511 free(keymap, M_DEVBUF); 512 if (accmap != NULL) 513 free(accmap, M_DEVBUF); 514 if (fkeymap != NULL) 515 free(fkeymap, M_DEVBUF); 516 if (kbd != NULL) { 517 free(kbd, M_DEVBUF); 518 *kbdp = NULL; /* insure ref doesn't leak to caller */ 519 } 520 } 521 return error; 522 } 523 524 /* finish using this keyboard */ 525 static int 526 atkbd_term(keyboard_t *kbd) 527 { 528 atkbd_state_t *state = (atkbd_state_t *)kbd->kb_data; 529 530 kbd_unregister(kbd); 531 callout_drain(&state->ks_timer); 532 return 0; 533 } 534 535 /* keyboard interrupt routine */ 536 static int 537 atkbd_intr(keyboard_t *kbd, void *arg) 538 { 539 atkbd_state_t *state = (atkbd_state_t *)kbd->kb_data; 540 int delay[2]; 541 int c; 542 543 if (!KBD_HAS_DEVICE(kbd)) { 544 /* 545 * The keyboard was not detected before; 546 * it must have been reconnected! 547 */ 548 init_keyboard(state->kbdc, &kbd->kb_type, kbd->kb_config); 549 KBD_FOUND_DEVICE(kbd); 550 atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state); 551 set_typematic(kbd); 552 delay[0] = kbd->kb_delay1; 553 delay[1] = kbd->kb_delay2; 554 atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay); 555 } 556 557 if (state->ks_polling) 558 return 0; 559 560 if (KBD_IS_ACTIVE(kbd) && KBD_IS_BUSY(kbd)) { 561 /* let the callback function to process the input */ 562 (*kbd->kb_callback.kc_func)(kbd, KBDIO_KEYINPUT, 563 kbd->kb_callback.kc_arg); 564 } else { 565 /* read and discard the input; no one is waiting for input */ 566 do { 567 c = atkbd_read_char(kbd, FALSE); 568 } while (c != NOKEY); 569 } 570 return 0; 571 } 572 573 /* test the interface to the device */ 574 static int 575 atkbd_test_if(keyboard_t *kbd) 576 { 577 int error; 578 int s; 579 580 error = 0; 581 empty_both_buffers(((atkbd_state_t *)kbd->kb_data)->kbdc, 10); 582 s = spltty(); 583 if (!test_controller(((atkbd_state_t *)kbd->kb_data)->kbdc)) 584 error = EIO; 585 else if (test_kbd_port(((atkbd_state_t *)kbd->kb_data)->kbdc) != 0) 586 error = EIO; 587 splx(s); 588 589 return error; 590 } 591 592 /* 593 * Enable the access to the device; until this function is called, 594 * the client cannot read from the keyboard. 595 */ 596 static int 597 atkbd_enable(keyboard_t *kbd) 598 { 599 int s; 600 601 s = spltty(); 602 KBD_ACTIVATE(kbd); 603 splx(s); 604 return 0; 605 } 606 607 /* disallow the access to the device */ 608 static int 609 atkbd_disable(keyboard_t *kbd) 610 { 611 int s; 612 613 s = spltty(); 614 KBD_DEACTIVATE(kbd); 615 splx(s); 616 return 0; 617 } 618 619 /* read one byte from the keyboard if it's allowed */ 620 static int 621 atkbd_read(keyboard_t *kbd, int wait) 622 { 623 int c; 624 625 if (wait) 626 c = read_kbd_data(((atkbd_state_t *)kbd->kb_data)->kbdc); 627 else 628 c = read_kbd_data_no_wait(((atkbd_state_t *)kbd->kb_data)->kbdc); 629 if (c != -1) 630 ++kbd->kb_count; 631 return (KBD_IS_ACTIVE(kbd) ? c : -1); 632 } 633 634 /* check if data is waiting */ 635 static int 636 atkbd_check(keyboard_t *kbd) 637 { 638 if (!KBD_IS_ACTIVE(kbd)) 639 return FALSE; 640 return kbdc_data_ready(((atkbd_state_t *)kbd->kb_data)->kbdc); 641 } 642 643 /* read char from the keyboard */ 644 static u_int 645 atkbd_read_char(keyboard_t *kbd, int wait) 646 { 647 atkbd_state_t *state; 648 u_int action; 649 int scancode; 650 int keycode; 651 652 state = (atkbd_state_t *)kbd->kb_data; 653 next_code: 654 /* do we have a composed char to return? */ 655 if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0)) { 656 action = state->ks_composed_char; 657 state->ks_composed_char = 0; 658 if (action > UCHAR_MAX) 659 return ERRKEY; 660 return action; 661 } 662 663 /* see if there is something in the keyboard port */ 664 if (wait) { 665 do { 666 scancode = read_kbd_data(state->kbdc); 667 } while (scancode == -1); 668 } else { 669 scancode = read_kbd_data_no_wait(state->kbdc); 670 if (scancode == -1) 671 return NOKEY; 672 } 673 ++kbd->kb_count; 674 675 #if KBDIO_DEBUG >= 10 676 printf("atkbd_read_char(): scancode:0x%x\n", scancode); 677 #endif 678 679 #ifdef EVDEV_SUPPORT 680 /* push evdev event */ 681 if (evdev_rcpt_mask & EVDEV_RCPT_HW_KBD && state->ks_evdev != NULL) { 682 keycode = evdev_scancode2key(&state->ks_evdev_state, 683 scancode); 684 685 if (keycode != KEY_RESERVED) { 686 evdev_push_event(state->ks_evdev, EV_KEY, 687 (uint16_t)keycode, scancode & 0x80 ? 0 : 1); 688 evdev_sync(state->ks_evdev); 689 } 690 } 691 #endif 692 693 /* return the byte as is for the K_RAW mode */ 694 if (state->ks_mode == K_RAW) 695 return scancode; 696 697 /* translate the scan code into a keycode */ 698 keycode = scancode & 0x7F; 699 switch (state->ks_prefix) { 700 case 0x00: /* normal scancode */ 701 switch(scancode) { 702 case 0xB8: /* left alt (compose key) released */ 703 if (state->ks_flags & COMPOSE) { 704 state->ks_flags &= ~COMPOSE; 705 if (state->ks_composed_char > UCHAR_MAX) 706 state->ks_composed_char = 0; 707 } 708 break; 709 case 0x38: /* left alt (compose key) pressed */ 710 if (!(state->ks_flags & COMPOSE)) { 711 state->ks_flags |= COMPOSE; 712 state->ks_composed_char = 0; 713 } 714 break; 715 case 0xE0: 716 case 0xE1: 717 state->ks_prefix = scancode; 718 goto next_code; 719 } 720 break; 721 case 0xE0: /* 0xE0 prefix */ 722 state->ks_prefix = 0; 723 switch (keycode) { 724 case 0x1C: /* right enter key */ 725 keycode = 0x59; 726 break; 727 case 0x1D: /* right ctrl key */ 728 keycode = 0x5A; 729 break; 730 case 0x35: /* keypad divide key */ 731 keycode = 0x5B; 732 break; 733 case 0x37: /* print scrn key */ 734 keycode = 0x5C; 735 break; 736 case 0x38: /* right alt key (alt gr) */ 737 keycode = 0x5D; 738 break; 739 case 0x46: /* ctrl-pause/break on AT 101 (see below) */ 740 keycode = 0x68; 741 break; 742 case 0x47: /* grey home key */ 743 keycode = 0x5E; 744 break; 745 case 0x48: /* grey up arrow key */ 746 keycode = 0x5F; 747 break; 748 case 0x49: /* grey page up key */ 749 keycode = 0x60; 750 break; 751 case 0x4B: /* grey left arrow key */ 752 keycode = 0x61; 753 break; 754 case 0x4D: /* grey right arrow key */ 755 keycode = 0x62; 756 break; 757 case 0x4F: /* grey end key */ 758 keycode = 0x63; 759 break; 760 case 0x50: /* grey down arrow key */ 761 keycode = 0x64; 762 break; 763 case 0x51: /* grey page down key */ 764 keycode = 0x65; 765 break; 766 case 0x52: /* grey insert key */ 767 keycode = 0x66; 768 break; 769 case 0x53: /* grey delete key */ 770 keycode = 0x67; 771 break; 772 /* the following 3 are only used on the MS "Natural" keyboard */ 773 case 0x5b: /* left Window key */ 774 keycode = 0x69; 775 break; 776 case 0x5c: /* right Window key */ 777 keycode = 0x6a; 778 break; 779 case 0x5d: /* menu key */ 780 keycode = 0x6b; 781 break; 782 case 0x5e: /* power key */ 783 keycode = 0x6d; 784 break; 785 case 0x5f: /* sleep key */ 786 keycode = 0x6e; 787 break; 788 case 0x63: /* wake key */ 789 keycode = 0x6f; 790 break; 791 default: /* ignore everything else */ 792 goto next_code; 793 } 794 break; 795 case 0xE1: /* 0xE1 prefix */ 796 /* 797 * The pause/break key on the 101 keyboard produces: 798 * E1-1D-45 E1-9D-C5 799 * Ctrl-pause/break produces: 800 * E0-46 E0-C6 (See above.) 801 */ 802 state->ks_prefix = 0; 803 if (keycode == 0x1D) 804 state->ks_prefix = 0x1D; 805 goto next_code; 806 /* NOT REACHED */ 807 case 0x1D: /* pause / break */ 808 state->ks_prefix = 0; 809 if (keycode != 0x45) 810 goto next_code; 811 keycode = 0x68; 812 break; 813 } 814 815 if (kbd->kb_type == KB_84) { 816 switch (keycode) { 817 case 0x37: /* *(numpad)/print screen */ 818 if (state->ks_flags & SHIFTS) 819 keycode = 0x5c; /* print screen */ 820 break; 821 case 0x45: /* num lock/pause */ 822 if (state->ks_flags & CTLS) 823 keycode = 0x68; /* pause */ 824 break; 825 case 0x46: /* scroll lock/break */ 826 if (state->ks_flags & CTLS) 827 keycode = 0x6c; /* break */ 828 break; 829 } 830 } else if (kbd->kb_type == KB_101) { 831 switch (keycode) { 832 case 0x5c: /* print screen */ 833 if (state->ks_flags & ALTS) 834 keycode = 0x54; /* sysrq */ 835 break; 836 case 0x68: /* pause/break */ 837 if (state->ks_flags & CTLS) 838 keycode = 0x6c; /* break */ 839 break; 840 } 841 } 842 843 /* return the key code in the K_CODE mode */ 844 if (state->ks_mode == K_CODE) 845 return (keycode | (scancode & 0x80)); 846 847 /* compose a character code */ 848 if (state->ks_flags & COMPOSE) { 849 switch (keycode | (scancode & 0x80)) { 850 /* key pressed, process it */ 851 case 0x47: case 0x48: case 0x49: /* keypad 7,8,9 */ 852 state->ks_composed_char *= 10; 853 state->ks_composed_char += keycode - 0x40; 854 if (state->ks_composed_char > UCHAR_MAX) 855 return ERRKEY; 856 goto next_code; 857 case 0x4B: case 0x4C: case 0x4D: /* keypad 4,5,6 */ 858 state->ks_composed_char *= 10; 859 state->ks_composed_char += keycode - 0x47; 860 if (state->ks_composed_char > UCHAR_MAX) 861 return ERRKEY; 862 goto next_code; 863 case 0x4F: case 0x50: case 0x51: /* keypad 1,2,3 */ 864 state->ks_composed_char *= 10; 865 state->ks_composed_char += keycode - 0x4E; 866 if (state->ks_composed_char > UCHAR_MAX) 867 return ERRKEY; 868 goto next_code; 869 case 0x52: /* keypad 0 */ 870 state->ks_composed_char *= 10; 871 if (state->ks_composed_char > UCHAR_MAX) 872 return ERRKEY; 873 goto next_code; 874 875 /* key released, no interest here */ 876 case 0xC7: case 0xC8: case 0xC9: /* keypad 7,8,9 */ 877 case 0xCB: case 0xCC: case 0xCD: /* keypad 4,5,6 */ 878 case 0xCF: case 0xD0: case 0xD1: /* keypad 1,2,3 */ 879 case 0xD2: /* keypad 0 */ 880 goto next_code; 881 882 case 0x38: /* left alt key */ 883 break; 884 885 default: 886 if (state->ks_composed_char > 0) { 887 state->ks_flags &= ~COMPOSE; 888 state->ks_composed_char = 0; 889 return ERRKEY; 890 } 891 break; 892 } 893 } 894 895 /* keycode to key action */ 896 action = genkbd_keyaction(kbd, keycode, scancode & 0x80, 897 &state->ks_state, &state->ks_accents); 898 if (action == NOKEY) 899 goto next_code; 900 else 901 return action; 902 } 903 904 /* check if char is waiting */ 905 static int 906 atkbd_check_char(keyboard_t *kbd) 907 { 908 atkbd_state_t *state; 909 910 if (!KBD_IS_ACTIVE(kbd)) 911 return FALSE; 912 state = (atkbd_state_t *)kbd->kb_data; 913 if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0)) 914 return TRUE; 915 return kbdc_data_ready(state->kbdc); 916 } 917 918 /* some useful control functions */ 919 static int 920 atkbd_ioctl(keyboard_t *kbd, u_long cmd, caddr_t arg) 921 { 922 /* translate LED_XXX bits into the device specific bits */ 923 static u_char ledmap[8] = { 924 0, 4, 2, 6, 1, 5, 3, 7, 925 }; 926 atkbd_state_t *state = kbd->kb_data; 927 int error; 928 int s; 929 int i; 930 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 931 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 932 int ival; 933 #endif 934 935 s = spltty(); 936 switch (cmd) { 937 938 case KDGKBMODE: /* get keyboard mode */ 939 *(int *)arg = state->ks_mode; 940 break; 941 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 942 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 943 case _IO('K', 7): 944 ival = IOCPARM_IVAL(arg); 945 arg = (caddr_t)&ival; 946 /* FALLTHROUGH */ 947 #endif 948 case KDSKBMODE: /* set keyboard mode */ 949 switch (*(int *)arg) { 950 case K_XLATE: 951 if (state->ks_mode != K_XLATE) { 952 /* make lock key state and LED state match */ 953 state->ks_state &= ~LOCK_MASK; 954 state->ks_state |= KBD_LED_VAL(kbd); 955 } 956 /* FALLTHROUGH */ 957 case K_RAW: 958 case K_CODE: 959 if (state->ks_mode != *(int *)arg) { 960 atkbd_clear_state(kbd); 961 state->ks_mode = *(int *)arg; 962 } 963 break; 964 default: 965 splx(s); 966 return EINVAL; 967 } 968 break; 969 970 case KDGETLED: /* get keyboard LED */ 971 *(int *)arg = KBD_LED_VAL(kbd); 972 break; 973 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 974 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 975 case _IO('K', 66): 976 ival = IOCPARM_IVAL(arg); 977 arg = (caddr_t)&ival; 978 /* FALLTHROUGH */ 979 #endif 980 case KDSETLED: /* set keyboard LED */ 981 /* NOTE: lock key state in ks_state won't be changed */ 982 if (*(int *)arg & ~LOCK_MASK) { 983 splx(s); 984 return EINVAL; 985 } 986 i = *(int *)arg; 987 /* replace CAPS LED with ALTGR LED for ALTGR keyboards */ 988 if (state->ks_mode == K_XLATE && 989 kbd->kb_keymap->n_keys > ALTGR_OFFSET) { 990 if (i & ALKED) 991 i |= CLKED; 992 else 993 i &= ~CLKED; 994 } 995 if (KBD_HAS_DEVICE(kbd)) { 996 error = write_kbd(state->kbdc, KBDC_SET_LEDS, 997 ledmap[i & LED_MASK]); 998 if (error) { 999 splx(s); 1000 return error; 1001 } 1002 } 1003 #ifdef EVDEV_SUPPORT 1004 /* push LED states to evdev */ 1005 if (state->ks_evdev != NULL && 1006 evdev_rcpt_mask & EVDEV_RCPT_HW_KBD) 1007 evdev_push_leds(state->ks_evdev, *(int *)arg); 1008 #endif 1009 KBD_LED_VAL(kbd) = *(int *)arg; 1010 break; 1011 1012 case KDGKBSTATE: /* get lock key state */ 1013 *(int *)arg = state->ks_state & LOCK_MASK; 1014 break; 1015 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 1016 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 1017 case _IO('K', 20): 1018 ival = IOCPARM_IVAL(arg); 1019 arg = (caddr_t)&ival; 1020 /* FALLTHROUGH */ 1021 #endif 1022 case KDSKBSTATE: /* set lock key state */ 1023 if (*(int *)arg & ~LOCK_MASK) { 1024 splx(s); 1025 return EINVAL; 1026 } 1027 state->ks_state &= ~LOCK_MASK; 1028 state->ks_state |= *(int *)arg; 1029 splx(s); 1030 /* set LEDs and quit */ 1031 return atkbd_ioctl(kbd, KDSETLED, arg); 1032 1033 case KDSETREPEAT: /* set keyboard repeat rate (new interface) */ 1034 splx(s); 1035 if (!KBD_HAS_DEVICE(kbd)) 1036 return 0; 1037 i = typematic(((int *)arg)[0], ((int *)arg)[1]); 1038 error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, i); 1039 if (error == 0) { 1040 kbd->kb_delay1 = typematic_delay(i); 1041 kbd->kb_delay2 = typematic_rate(i); 1042 #ifdef EVDEV_SUPPORT 1043 if (state->ks_evdev != NULL && 1044 evdev_rcpt_mask & EVDEV_RCPT_HW_KBD) 1045 evdev_push_repeats(state->ks_evdev, kbd); 1046 #endif 1047 } 1048 return error; 1049 1050 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 1051 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 1052 case _IO('K', 67): 1053 ival = IOCPARM_IVAL(arg); 1054 arg = (caddr_t)&ival; 1055 /* FALLTHROUGH */ 1056 #endif 1057 case KDSETRAD: /* set keyboard repeat rate (old interface) */ 1058 splx(s); 1059 if (!KBD_HAS_DEVICE(kbd)) 1060 return 0; 1061 error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, *(int *)arg); 1062 if (error == 0) { 1063 kbd->kb_delay1 = typematic_delay(*(int *)arg); 1064 kbd->kb_delay2 = typematic_rate(*(int *)arg); 1065 #ifdef EVDEV_SUPPORT 1066 if (state->ks_evdev != NULL && 1067 evdev_rcpt_mask & EVDEV_RCPT_HW_KBD) 1068 evdev_push_repeats(state->ks_evdev, kbd); 1069 #endif 1070 } 1071 return error; 1072 1073 case PIO_KEYMAP: /* set keyboard translation table */ 1074 case OPIO_KEYMAP: /* set keyboard translation table (compat) */ 1075 case PIO_KEYMAPENT: /* set keyboard translation table entry */ 1076 case PIO_DEADKEYMAP: /* set accent key translation table */ 1077 state->ks_accents = 0; 1078 /* FALLTHROUGH */ 1079 default: 1080 splx(s); 1081 return genkbd_commonioctl(kbd, cmd, arg); 1082 } 1083 1084 splx(s); 1085 return 0; 1086 } 1087 1088 /* lock the access to the keyboard */ 1089 static int 1090 atkbd_lock(keyboard_t *kbd, int lock) 1091 { 1092 return kbdc_lock(((atkbd_state_t *)kbd->kb_data)->kbdc, lock); 1093 } 1094 1095 /* clear the internal state of the keyboard */ 1096 static void 1097 atkbd_clear_state(keyboard_t *kbd) 1098 { 1099 atkbd_state_t *state; 1100 1101 state = (atkbd_state_t *)kbd->kb_data; 1102 state->ks_flags = 0; 1103 state->ks_polling = 0; 1104 state->ks_state &= LOCK_MASK; /* preserve locking key state */ 1105 state->ks_accents = 0; 1106 state->ks_composed_char = 0; 1107 #if 0 1108 state->ks_prefix = 0; /* XXX */ 1109 #endif 1110 } 1111 1112 /* save the internal state */ 1113 static int 1114 atkbd_get_state(keyboard_t *kbd, void *buf, size_t len) 1115 { 1116 if (len == 0) 1117 return sizeof(atkbd_state_t); 1118 if (len < sizeof(atkbd_state_t)) 1119 return -1; 1120 bcopy(kbd->kb_data, buf, sizeof(atkbd_state_t)); 1121 return 0; 1122 } 1123 1124 /* set the internal state */ 1125 static int 1126 atkbd_set_state(keyboard_t *kbd, void *buf, size_t len) 1127 { 1128 if (len < sizeof(atkbd_state_t)) 1129 return ENOMEM; 1130 if (((atkbd_state_t *)kbd->kb_data)->kbdc 1131 != ((atkbd_state_t *)buf)->kbdc) 1132 return ENOMEM; 1133 bcopy(buf, kbd->kb_data, sizeof(atkbd_state_t)); 1134 return 0; 1135 } 1136 1137 static int 1138 atkbd_poll(keyboard_t *kbd, int on) 1139 { 1140 atkbd_state_t *state; 1141 int s; 1142 1143 state = (atkbd_state_t *)kbd->kb_data; 1144 s = spltty(); 1145 if (on) 1146 ++state->ks_polling; 1147 else 1148 --state->ks_polling; 1149 splx(s); 1150 return 0; 1151 } 1152 1153 static void 1154 atkbd_shutdown_final(void *v) 1155 { 1156 #ifdef __sparc64__ 1157 keyboard_t *kbd = v; 1158 KBDC kbdc = ((atkbd_state_t *)kbd->kb_data)->kbdc; 1159 1160 /* 1161 * Turn off the translation in preparation for handing the keyboard 1162 * over to the OFW as the OBP driver doesn't use translation and 1163 * also doesn't disable it itself resulting in a broken keymap at 1164 * the boot prompt. Also disable the aux port and the interrupts as 1165 * the OBP driver doesn't use them, i.e. polls the keyboard. Not 1166 * disabling the interrupts doesn't cause real problems but the 1167 * responsiveness is a bit better when they are turned off. 1168 */ 1169 send_kbd_command(kbdc, KBDC_DISABLE_KBD); 1170 set_controller_command_byte(kbdc, 1171 KBD_AUX_CONTROL_BITS | KBD_KBD_CONTROL_BITS | KBD_TRANSLATION, 1172 KBD_DISABLE_AUX_PORT | KBD_DISABLE_KBD_INT | KBD_ENABLE_KBD_PORT); 1173 send_kbd_command(kbdc, KBDC_ENABLE_KBD); 1174 #endif 1175 } 1176 1177 static int 1178 atkbd_reset(KBDC kbdc, int flags, int c) 1179 { 1180 /* reset keyboard hardware */ 1181 if (!(flags & KB_CONF_NO_RESET) && !reset_kbd(kbdc)) { 1182 /* 1183 * KEYBOARD ERROR 1184 * Keyboard reset may fail either because the keyboard 1185 * doen't exist, or because the keyboard doesn't pass 1186 * the self-test, or the keyboard controller on the 1187 * motherboard and the keyboard somehow fail to shake hands. 1188 * It is just possible, particularly in the last case, 1189 * that the keyboard controller may be left in a hung state. 1190 * test_controller() and test_kbd_port() appear to bring 1191 * the keyboard controller back (I don't know why and how, 1192 * though.) 1193 */ 1194 empty_both_buffers(kbdc, 10); 1195 test_controller(kbdc); 1196 test_kbd_port(kbdc); 1197 /* 1198 * We could disable the keyboard port and interrupt... but, 1199 * the keyboard may still exist (see above). 1200 */ 1201 set_controller_command_byte(kbdc, 1202 ALLOW_DISABLE_KBD(kbdc) ? 0xff : KBD_KBD_CONTROL_BITS, c); 1203 if (bootverbose) 1204 printf("atkbd: failed to reset the keyboard.\n"); 1205 return (EIO); 1206 } 1207 return (0); 1208 } 1209 1210 #ifdef EVDEV_SUPPORT 1211 static void 1212 atkbd_ev_event(struct evdev_dev *evdev, uint16_t type, uint16_t code, 1213 int32_t value) 1214 { 1215 keyboard_t *kbd = evdev_get_softc(evdev); 1216 1217 if (evdev_rcpt_mask & EVDEV_RCPT_HW_KBD && 1218 (type == EV_LED || type == EV_REP)) { 1219 mtx_lock(&Giant); 1220 kbd_ev_event(kbd, type, code, value); 1221 mtx_unlock(&Giant); 1222 } 1223 } 1224 #endif 1225 1226 /* local functions */ 1227 1228 static int 1229 set_typematic(keyboard_t *kbd) 1230 { 1231 int val, error; 1232 atkbd_state_t *state = kbd->kb_data; 1233 1234 val = typematic(DEFAULT_DELAY, DEFAULT_RATE); 1235 error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, val); 1236 if (error == 0) { 1237 kbd->kb_delay1 = typematic_delay(val); 1238 kbd->kb_delay2 = typematic_rate(val); 1239 } 1240 1241 return (error); 1242 } 1243 1244 static int 1245 setup_kbd_port(KBDC kbdc, int port, int intr) 1246 { 1247 if (!set_controller_command_byte(kbdc, 1248 KBD_KBD_CONTROL_BITS, 1249 ((port) ? KBD_ENABLE_KBD_PORT : KBD_DISABLE_KBD_PORT) 1250 | ((intr) ? KBD_ENABLE_KBD_INT : KBD_DISABLE_KBD_INT))) 1251 return 1; 1252 return 0; 1253 } 1254 1255 static int 1256 get_kbd_echo(KBDC kbdc) 1257 { 1258 /* enable the keyboard port, but disable the keyboard intr. */ 1259 if (setup_kbd_port(kbdc, TRUE, FALSE)) 1260 /* CONTROLLER ERROR: there is very little we can do... */ 1261 return ENXIO; 1262 1263 /* see if something is present */ 1264 write_kbd_command(kbdc, KBDC_ECHO); 1265 if (read_kbd_data(kbdc) != KBD_ECHO) { 1266 empty_both_buffers(kbdc, 10); 1267 test_controller(kbdc); 1268 test_kbd_port(kbdc); 1269 return ENXIO; 1270 } 1271 1272 /* enable the keyboard port and intr. */ 1273 if (setup_kbd_port(kbdc, TRUE, TRUE)) { 1274 /* 1275 * CONTROLLER ERROR 1276 * This is serious; the keyboard intr is left disabled! 1277 */ 1278 return ENXIO; 1279 } 1280 1281 return 0; 1282 } 1283 1284 static int 1285 probe_keyboard(KBDC kbdc, int flags) 1286 { 1287 /* 1288 * Don't try to print anything in this function. The low-level 1289 * console may not have been initialized yet... 1290 */ 1291 int err; 1292 int c; 1293 int m; 1294 1295 if (!kbdc_lock(kbdc, TRUE)) { 1296 /* driver error? */ 1297 return ENXIO; 1298 } 1299 1300 /* temporarily block data transmission from the keyboard */ 1301 write_controller_command(kbdc, KBDC_DISABLE_KBD_PORT); 1302 1303 /* flush any noise in the buffer */ 1304 empty_both_buffers(kbdc, 100); 1305 1306 /* save the current keyboard controller command byte */ 1307 m = kbdc_get_device_mask(kbdc) & ~KBD_KBD_CONTROL_BITS; 1308 c = get_controller_command_byte(kbdc); 1309 if (c == -1) { 1310 /* CONTROLLER ERROR */ 1311 kbdc_set_device_mask(kbdc, m); 1312 kbdc_lock(kbdc, FALSE); 1313 return ENXIO; 1314 } 1315 1316 /* 1317 * The keyboard may have been screwed up by the boot block. 1318 * We may just be able to recover from error by testing the controller 1319 * and the keyboard port. The controller command byte needs to be 1320 * saved before this recovery operation, as some controllers seem 1321 * to set the command byte to particular values. 1322 */ 1323 test_controller(kbdc); 1324 if (!(flags & KB_CONF_NO_PROBE_TEST)) 1325 test_kbd_port(kbdc); 1326 1327 err = get_kbd_echo(kbdc); 1328 1329 /* 1330 * Even if the keyboard doesn't seem to be present (err != 0), 1331 * we shall enable the keyboard port and interrupt so that 1332 * the driver will be operable when the keyboard is attached 1333 * to the system later. It is NOT recommended to hot-plug 1334 * the AT keyboard, but many people do so... 1335 */ 1336 kbdc_set_device_mask(kbdc, m | KBD_KBD_CONTROL_BITS); 1337 setup_kbd_port(kbdc, TRUE, TRUE); 1338 #if 0 1339 if (err == 0) { 1340 kbdc_set_device_mask(kbdc, m | KBD_KBD_CONTROL_BITS); 1341 } else { 1342 /* try to restore the command byte as before */ 1343 set_controller_command_byte(kbdc, 1344 ALLOW_DISABLE_KBD(kbdc) ? 0xff : KBD_KBD_CONTROL_BITS, c); 1345 kbdc_set_device_mask(kbdc, m); 1346 } 1347 #endif 1348 1349 kbdc_lock(kbdc, FALSE); 1350 return (HAS_QUIRK(kbdc, KBDC_QUIRK_IGNORE_PROBE_RESULT) ? 0 : err); 1351 } 1352 1353 static int 1354 init_keyboard(KBDC kbdc, int *type, int flags) 1355 { 1356 int codeset; 1357 int id; 1358 int c; 1359 1360 if (!kbdc_lock(kbdc, TRUE)) { 1361 /* driver error? */ 1362 return EIO; 1363 } 1364 1365 /* temporarily block data transmission from the keyboard */ 1366 write_controller_command(kbdc, KBDC_DISABLE_KBD_PORT); 1367 1368 /* save the current controller command byte */ 1369 empty_both_buffers(kbdc, 200); 1370 c = get_controller_command_byte(kbdc); 1371 if (c == -1) { 1372 /* CONTROLLER ERROR */ 1373 kbdc_lock(kbdc, FALSE); 1374 printf("atkbd: unable to get the current command byte value.\n"); 1375 return EIO; 1376 } 1377 if (bootverbose) 1378 printf("atkbd: the current kbd controller command byte %04x\n", 1379 c); 1380 #if 0 1381 /* override the keyboard lock switch */ 1382 c |= KBD_OVERRIDE_KBD_LOCK; 1383 #endif 1384 1385 /* enable the keyboard port, but disable the keyboard intr. */ 1386 if (setup_kbd_port(kbdc, TRUE, FALSE)) { 1387 /* CONTROLLER ERROR: there is very little we can do... */ 1388 printf("atkbd: unable to set the command byte.\n"); 1389 kbdc_lock(kbdc, FALSE); 1390 return EIO; 1391 } 1392 1393 if (HAS_QUIRK(kbdc, KBDC_QUIRK_RESET_AFTER_PROBE) && 1394 atkbd_reset(kbdc, flags, c)) { 1395 kbdc_lock(kbdc, FALSE); 1396 return EIO; 1397 } 1398 1399 /* 1400 * Check if we have an XT keyboard before we attempt to reset it. 1401 * The procedure assumes that the keyboard and the controller have 1402 * been set up properly by BIOS and have not been messed up 1403 * during the boot process. 1404 */ 1405 codeset = -1; 1406 if (flags & KB_CONF_ALT_SCANCODESET) 1407 /* the user says there is a XT keyboard */ 1408 codeset = 1; 1409 #ifdef KBD_DETECT_XT_KEYBOARD 1410 else if ((c & KBD_TRANSLATION) == 0) { 1411 /* SET_SCANCODE_SET is not always supported; ignore error */ 1412 if (send_kbd_command_and_data(kbdc, KBDC_SET_SCANCODE_SET, 0) 1413 == KBD_ACK) 1414 codeset = read_kbd_data(kbdc); 1415 } 1416 if (bootverbose) 1417 printf("atkbd: scancode set %d\n", codeset); 1418 #endif /* KBD_DETECT_XT_KEYBOARD */ 1419 1420 *type = KB_OTHER; 1421 id = get_kbd_id(kbdc); 1422 switch(id) { 1423 case 0x41ab: /* 101/102/... Enhanced */ 1424 case 0x83ab: /* ditto */ 1425 case 0x54ab: /* SpaceSaver */ 1426 case 0x84ab: /* ditto */ 1427 #if 0 1428 case 0x90ab: /* 'G' */ 1429 case 0x91ab: /* 'P' */ 1430 case 0x92ab: /* 'A' */ 1431 #endif 1432 *type = KB_101; 1433 break; 1434 case -1: /* AT 84 keyboard doesn't return ID */ 1435 *type = KB_84; 1436 break; 1437 default: 1438 break; 1439 } 1440 if (bootverbose) 1441 printf("atkbd: keyboard ID 0x%x (%d)\n", id, *type); 1442 1443 if (!HAS_QUIRK(kbdc, KBDC_QUIRK_RESET_AFTER_PROBE) && 1444 atkbd_reset(kbdc, flags, c)) { 1445 kbdc_lock(kbdc, FALSE); 1446 return EIO; 1447 } 1448 1449 /* 1450 * Allow us to set the XT_KEYBD flag so that keyboards 1451 * such as those on the IBM ThinkPad laptop computers can be used 1452 * with the standard console driver. 1453 */ 1454 if (codeset == 1) { 1455 if (send_kbd_command_and_data(kbdc, 1456 KBDC_SET_SCANCODE_SET, codeset) == KBD_ACK) { 1457 /* XT kbd doesn't need scan code translation */ 1458 c &= ~KBD_TRANSLATION; 1459 } else { 1460 /* 1461 * KEYBOARD ERROR 1462 * The XT kbd isn't usable unless the proper scan 1463 * code set is selected. 1464 */ 1465 set_controller_command_byte(kbdc, ALLOW_DISABLE_KBD(kbdc) 1466 ? 0xff : KBD_KBD_CONTROL_BITS, c); 1467 kbdc_lock(kbdc, FALSE); 1468 printf("atkbd: unable to set the XT keyboard mode.\n"); 1469 return EIO; 1470 } 1471 } 1472 1473 #if defined(__sparc64__) 1474 if (send_kbd_command_and_data( 1475 kbdc, KBDC_SET_SCANCODE_SET, 2) != KBD_ACK) { 1476 printf("atkbd: can't set translation.\n"); 1477 } 1478 c |= KBD_TRANSLATION; 1479 #endif 1480 1481 /* 1482 * Some keyboards require a SETLEDS command to be sent after 1483 * the reset command before they will send keystrokes to us 1484 */ 1485 if (HAS_QUIRK(kbdc, KBDC_QUIRK_SETLEDS_ON_INIT) && 1486 send_kbd_command_and_data(kbdc, KBDC_SET_LEDS, 0) != KBD_ACK) { 1487 printf("atkbd: setleds failed\n"); 1488 } 1489 if (!ALLOW_DISABLE_KBD(kbdc)) 1490 send_kbd_command(kbdc, KBDC_ENABLE_KBD); 1491 1492 /* enable the keyboard port and intr. */ 1493 if (!set_controller_command_byte(kbdc, 1494 KBD_KBD_CONTROL_BITS | KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK, 1495 (c & (KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK)) 1496 | KBD_ENABLE_KBD_PORT | KBD_ENABLE_KBD_INT)) { 1497 /* 1498 * CONTROLLER ERROR 1499 * This is serious; we are left with the disabled 1500 * keyboard intr. 1501 */ 1502 set_controller_command_byte(kbdc, ALLOW_DISABLE_KBD(kbdc) 1503 ? 0xff : (KBD_KBD_CONTROL_BITS | KBD_TRANSLATION | 1504 KBD_OVERRIDE_KBD_LOCK), c); 1505 kbdc_lock(kbdc, FALSE); 1506 printf("atkbd: unable to enable the keyboard port and intr.\n"); 1507 return EIO; 1508 } 1509 1510 kbdc_lock(kbdc, FALSE); 1511 return 0; 1512 } 1513 1514 static int 1515 write_kbd(KBDC kbdc, int command, int data) 1516 { 1517 int s; 1518 1519 /* prevent the timeout routine from polling the keyboard */ 1520 if (!kbdc_lock(kbdc, TRUE)) 1521 return EBUSY; 1522 1523 /* disable the keyboard and mouse interrupt */ 1524 s = spltty(); 1525 #if 0 1526 c = get_controller_command_byte(kbdc); 1527 if ((c == -1) 1528 || !set_controller_command_byte(kbdc, 1529 kbdc_get_device_mask(kbdc), 1530 KBD_DISABLE_KBD_PORT | KBD_DISABLE_KBD_INT 1531 | KBD_DISABLE_AUX_PORT | KBD_DISABLE_AUX_INT)) { 1532 /* CONTROLLER ERROR */ 1533 kbdc_lock(kbdc, FALSE); 1534 splx(s); 1535 return EIO; 1536 } 1537 /* 1538 * Now that the keyboard controller is told not to generate 1539 * the keyboard and mouse interrupts, call `splx()' to allow 1540 * the other tty interrupts. The clock interrupt may also occur, 1541 * but the timeout routine (`scrn_timer()') will be blocked 1542 * by the lock flag set via `kbdc_lock()' 1543 */ 1544 splx(s); 1545 #endif 1546 if (send_kbd_command_and_data(kbdc, command, data) != KBD_ACK) 1547 send_kbd_command(kbdc, KBDC_ENABLE_KBD); 1548 #if 0 1549 /* restore the interrupts */ 1550 if (!set_controller_command_byte(kbdc, kbdc_get_device_mask(kbdc), 1551 c & (KBD_KBD_CONTROL_BITS | KBD_AUX_CONTROL_BITS))) { 1552 /* CONTROLLER ERROR */ 1553 } 1554 #else 1555 splx(s); 1556 #endif 1557 kbdc_lock(kbdc, FALSE); 1558 1559 return 0; 1560 } 1561 1562 static int 1563 get_kbd_id(KBDC kbdc) 1564 { 1565 int id1, id2; 1566 1567 empty_both_buffers(kbdc, 10); 1568 id1 = id2 = -1; 1569 if (send_kbd_command(kbdc, KBDC_SEND_DEV_ID) != KBD_ACK) 1570 return -1; 1571 1572 DELAY(10000); /* 10 msec delay */ 1573 id1 = read_kbd_data(kbdc); 1574 if (id1 != -1) 1575 id2 = read_kbd_data(kbdc); 1576 1577 if ((id1 == -1) || (id2 == -1)) { 1578 empty_both_buffers(kbdc, 10); 1579 test_controller(kbdc); 1580 test_kbd_port(kbdc); 1581 return -1; 1582 } 1583 return ((id2 << 8) | id1); 1584 } 1585 1586 static int delays[] = { 250, 500, 750, 1000 }; 1587 static int rates[] = { 34, 38, 42, 46, 50, 55, 59, 63, 1588 68, 76, 84, 92, 100, 110, 118, 126, 1589 136, 152, 168, 184, 200, 220, 236, 252, 1590 272, 304, 336, 368, 400, 440, 472, 504 }; 1591 1592 static int 1593 typematic_delay(int i) 1594 { 1595 return delays[(i >> 5) & 3]; 1596 } 1597 1598 static int 1599 typematic_rate(int i) 1600 { 1601 return rates[i & 0x1f]; 1602 } 1603 1604 static int 1605 typematic(int delay, int rate) 1606 { 1607 int value; 1608 int i; 1609 1610 for (i = nitems(delays) - 1; i > 0; --i) { 1611 if (delay >= delays[i]) 1612 break; 1613 } 1614 value = i << 5; 1615 for (i = nitems(rates) - 1; i > 0; --i) { 1616 if (rate >= rates[i]) 1617 break; 1618 } 1619 value |= i; 1620 return value; 1621 }
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