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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: releng/11.2/sys/dev/atkbdc/atkbd.c 331722 2018-03-29 02:50:57Z eadler $"); 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 atkbd_probe, 234 atkbd_init, 235 atkbd_term, 236 atkbd_intr, 237 atkbd_test_if, 238 atkbd_enable, 239 atkbd_disable, 240 atkbd_read, 241 atkbd_check, 242 atkbd_read_char, 243 atkbd_check_char, 244 atkbd_ioctl, 245 atkbd_lock, 246 atkbd_clear_state, 247 atkbd_get_state, 248 atkbd_set_state, 249 genkbd_get_fkeystr, 250 atkbd_poll, 251 genkbd_diag, 252 }; 253 254 KEYBOARD_DRIVER(atkbd, atkbdsw, atkbd_configure); 255 256 /* local functions */ 257 static int set_typematic(keyboard_t *kbd); 258 static int setup_kbd_port(KBDC kbdc, int port, int intr); 259 static int get_kbd_echo(KBDC kbdc); 260 static int probe_keyboard(KBDC kbdc, int flags); 261 static int init_keyboard(KBDC kbdc, int *type, int flags); 262 static int write_kbd(KBDC kbdc, int command, int data); 263 static int get_kbd_id(KBDC kbdc); 264 static int typematic(int delay, int rate); 265 static int typematic_delay(int delay); 266 static int typematic_rate(int rate); 267 268 #ifdef EVDEV_SUPPORT 269 static const struct evdev_methods atkbd_evdev_methods = { 270 .ev_event = evdev_ev_kbd_event, 271 }; 272 #endif 273 274 /* local variables */ 275 276 /* the initial key map, accent map and fkey strings */ 277 #ifdef ATKBD_DFLT_KEYMAP 278 #define KBD_DFLT_KEYMAP 279 #include "atkbdmap.h" 280 #endif 281 #include <dev/kbd/kbdtables.h> 282 283 /* structures for the default keyboard */ 284 static keyboard_t default_kbd; 285 static atkbd_state_t default_kbd_state; 286 static keymap_t default_keymap; 287 static accentmap_t default_accentmap; 288 static fkeytab_t default_fkeytab[NUM_FKEYS]; 289 290 /* 291 * The back door to the keyboard driver! 292 * This function is called by the console driver, via the kbdio module, 293 * to tickle keyboard drivers when the low-level console is being initialized. 294 * Almost nothing in the kernel has been initialied yet. Try to probe 295 * keyboards if possible. 296 * NOTE: because of the way the low-level console is initialized, this routine 297 * may be called more than once!! 298 */ 299 static int 300 atkbd_configure(int flags) 301 { 302 keyboard_t *kbd; 303 int arg[2]; 304 int i; 305 306 /* 307 * Probe the keyboard controller, if not present or if the driver 308 * is disabled, unregister the keyboard if any. 309 */ 310 if (atkbdc_configure() != 0 || 311 resource_disabled("atkbd", ATKBD_DEFAULT)) { 312 i = kbd_find_keyboard(ATKBD_DRIVER_NAME, ATKBD_DEFAULT); 313 if (i >= 0) { 314 kbd = kbd_get_keyboard(i); 315 kbd_unregister(kbd); 316 kbd->kb_flags &= ~KB_REGISTERED; 317 } 318 return 0; 319 } 320 321 /* XXX: a kludge to obtain the device configuration flags */ 322 if (resource_int_value("atkbd", ATKBD_DEFAULT, "flags", &i) == 0) 323 flags |= i; 324 325 /* probe the default keyboard */ 326 arg[0] = -1; 327 arg[1] = -1; 328 kbd = NULL; 329 if (atkbd_probe(ATKBD_DEFAULT, arg, flags)) 330 return 0; 331 if (atkbd_init(ATKBD_DEFAULT, &kbd, arg, flags)) 332 return 0; 333 334 /* return the number of found keyboards */ 335 return 1; 336 } 337 338 /* low-level functions */ 339 340 /* detect a keyboard */ 341 static int 342 atkbd_probe(int unit, void *arg, int flags) 343 { 344 KBDC kbdc; 345 int *data = (int *)arg; /* data[0]: controller, data[1]: irq */ 346 347 /* XXX */ 348 if (unit == ATKBD_DEFAULT) { 349 if (KBD_IS_PROBED(&default_kbd)) 350 return 0; 351 } 352 353 kbdc = atkbdc_open(data[0]); 354 if (kbdc == NULL) 355 return ENXIO; 356 if (probe_keyboard(kbdc, flags)) { 357 if (flags & KB_CONF_FAIL_IF_NO_KBD) 358 return ENXIO; 359 } 360 return 0; 361 } 362 363 /* reset and initialize the device */ 364 static int 365 atkbd_init(int unit, keyboard_t **kbdp, void *arg, int flags) 366 { 367 keyboard_t *kbd; 368 atkbd_state_t *state; 369 keymap_t *keymap; 370 accentmap_t *accmap; 371 fkeytab_t *fkeymap; 372 int fkeymap_size; 373 int delay[2]; 374 int *data = (int *)arg; /* data[0]: controller, data[1]: irq */ 375 int error, needfree; 376 #ifdef EVDEV_SUPPORT 377 struct evdev_dev *evdev; 378 char phys_loc[8]; 379 #endif 380 381 /* XXX */ 382 if (unit == ATKBD_DEFAULT) { 383 *kbdp = kbd = &default_kbd; 384 if (KBD_IS_INITIALIZED(kbd) && KBD_IS_CONFIGURED(kbd)) 385 return 0; 386 state = &default_kbd_state; 387 keymap = &default_keymap; 388 accmap = &default_accentmap; 389 fkeymap = default_fkeytab; 390 fkeymap_size = nitems(default_fkeytab); 391 needfree = 0; 392 } else if (*kbdp == NULL) { 393 *kbdp = kbd = malloc(sizeof(*kbd), M_DEVBUF, M_NOWAIT | M_ZERO); 394 state = malloc(sizeof(*state), M_DEVBUF, M_NOWAIT | M_ZERO); 395 /* NB: these will always be initialized 'cuz !KBD_IS_PROBED */ 396 keymap = malloc(sizeof(key_map), M_DEVBUF, M_NOWAIT); 397 accmap = malloc(sizeof(accent_map), M_DEVBUF, M_NOWAIT); 398 fkeymap = malloc(sizeof(fkey_tab), M_DEVBUF, M_NOWAIT); 399 fkeymap_size = sizeof(fkey_tab)/sizeof(fkey_tab[0]); 400 needfree = 1; 401 if ((kbd == NULL) || (state == NULL) || (keymap == NULL) 402 || (accmap == NULL) || (fkeymap == NULL)) { 403 error = ENOMEM; 404 goto bad; 405 } 406 } else if (KBD_IS_INITIALIZED(*kbdp) && KBD_IS_CONFIGURED(*kbdp)) { 407 return 0; 408 } else { 409 kbd = *kbdp; 410 state = (atkbd_state_t *)kbd->kb_data; 411 bzero(state, sizeof(*state)); 412 keymap = kbd->kb_keymap; 413 accmap = kbd->kb_accentmap; 414 fkeymap = kbd->kb_fkeytab; 415 fkeymap_size = kbd->kb_fkeytab_size; 416 needfree = 0; 417 } 418 419 if (!KBD_IS_PROBED(kbd)) { 420 state->kbdc = atkbdc_open(data[0]); 421 if (state->kbdc == NULL) { 422 error = ENXIO; 423 goto bad; 424 } 425 kbd_init_struct(kbd, ATKBD_DRIVER_NAME, KB_OTHER, unit, flags, 426 0, 0); 427 bcopy(&key_map, keymap, sizeof(key_map)); 428 bcopy(&accent_map, accmap, sizeof(accent_map)); 429 bcopy(fkey_tab, fkeymap, 430 imin(fkeymap_size * sizeof(fkeymap[0]), sizeof(fkey_tab))); 431 kbd_set_maps(kbd, keymap, accmap, fkeymap, fkeymap_size); 432 kbd->kb_data = (void *)state; 433 434 if (probe_keyboard(state->kbdc, flags)) { /* shouldn't happen */ 435 if (flags & KB_CONF_FAIL_IF_NO_KBD) { 436 error = ENXIO; 437 goto bad; 438 } 439 } else { 440 KBD_FOUND_DEVICE(kbd); 441 } 442 atkbd_clear_state(kbd); 443 state->ks_mode = K_XLATE; 444 /* 445 * FIXME: set the initial value for lock keys in ks_state 446 * according to the BIOS data? 447 */ 448 KBD_PROBE_DONE(kbd); 449 } 450 if (!KBD_IS_INITIALIZED(kbd) && !(flags & KB_CONF_PROBE_ONLY)) { 451 kbd->kb_config = flags & ~KB_CONF_PROBE_ONLY; 452 if (KBD_HAS_DEVICE(kbd) 453 && init_keyboard(state->kbdc, &kbd->kb_type, kbd->kb_config) 454 && (kbd->kb_config & KB_CONF_FAIL_IF_NO_KBD)) { 455 kbd_unregister(kbd); 456 error = ENXIO; 457 goto bad; 458 } 459 atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state); 460 set_typematic(kbd); 461 delay[0] = kbd->kb_delay1; 462 delay[1] = kbd->kb_delay2; 463 atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay); 464 465 #ifdef EVDEV_SUPPORT 466 /* register as evdev provider on first init */ 467 if (state->ks_evdev == NULL) { 468 snprintf(phys_loc, sizeof(phys_loc), "atkbd%d", unit); 469 evdev = evdev_alloc(); 470 evdev_set_name(evdev, "AT keyboard"); 471 evdev_set_phys(evdev, phys_loc); 472 evdev_set_id(evdev, BUS_I8042, PS2_KEYBOARD_VENDOR, 473 PS2_KEYBOARD_PRODUCT, 0); 474 evdev_set_methods(evdev, kbd, &atkbd_evdev_methods); 475 evdev_support_event(evdev, EV_SYN); 476 evdev_support_event(evdev, EV_KEY); 477 evdev_support_event(evdev, EV_LED); 478 evdev_support_event(evdev, EV_REP); 479 evdev_support_all_known_keys(evdev); 480 evdev_support_led(evdev, LED_NUML); 481 evdev_support_led(evdev, LED_CAPSL); 482 evdev_support_led(evdev, LED_SCROLLL); 483 484 if (evdev_register(evdev)) 485 evdev_free(evdev); 486 else 487 state->ks_evdev = evdev; 488 state->ks_evdev_state = 0; 489 } 490 #endif 491 492 KBD_INIT_DONE(kbd); 493 } 494 if (!KBD_IS_CONFIGURED(kbd)) { 495 if (kbd_register(kbd) < 0) { 496 error = ENXIO; 497 goto bad; 498 } 499 KBD_CONFIG_DONE(kbd); 500 } 501 502 return 0; 503 bad: 504 if (needfree) { 505 if (state != NULL) 506 free(state, M_DEVBUF); 507 if (keymap != NULL) 508 free(keymap, M_DEVBUF); 509 if (accmap != NULL) 510 free(accmap, M_DEVBUF); 511 if (fkeymap != NULL) 512 free(fkeymap, M_DEVBUF); 513 if (kbd != NULL) { 514 free(kbd, M_DEVBUF); 515 *kbdp = NULL; /* insure ref doesn't leak to caller */ 516 } 517 } 518 return error; 519 } 520 521 /* finish using this keyboard */ 522 static int 523 atkbd_term(keyboard_t *kbd) 524 { 525 atkbd_state_t *state = (atkbd_state_t *)kbd->kb_data; 526 527 kbd_unregister(kbd); 528 callout_drain(&state->ks_timer); 529 return 0; 530 } 531 532 /* keyboard interrupt routine */ 533 static int 534 atkbd_intr(keyboard_t *kbd, void *arg) 535 { 536 atkbd_state_t *state = (atkbd_state_t *)kbd->kb_data; 537 int delay[2]; 538 int c; 539 540 if (!KBD_HAS_DEVICE(kbd)) { 541 /* 542 * The keyboard was not detected before; 543 * it must have been reconnected! 544 */ 545 init_keyboard(state->kbdc, &kbd->kb_type, kbd->kb_config); 546 KBD_FOUND_DEVICE(kbd); 547 atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state); 548 set_typematic(kbd); 549 delay[0] = kbd->kb_delay1; 550 delay[1] = kbd->kb_delay2; 551 atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay); 552 } 553 554 if (state->ks_polling) 555 return 0; 556 557 if (KBD_IS_ACTIVE(kbd) && KBD_IS_BUSY(kbd)) { 558 /* let the callback function to process the input */ 559 (*kbd->kb_callback.kc_func)(kbd, KBDIO_KEYINPUT, 560 kbd->kb_callback.kc_arg); 561 } else { 562 /* read and discard the input; no one is waiting for input */ 563 do { 564 c = atkbd_read_char(kbd, FALSE); 565 } while (c != NOKEY); 566 } 567 return 0; 568 } 569 570 /* test the interface to the device */ 571 static int 572 atkbd_test_if(keyboard_t *kbd) 573 { 574 int error; 575 int s; 576 577 error = 0; 578 empty_both_buffers(((atkbd_state_t *)kbd->kb_data)->kbdc, 10); 579 s = spltty(); 580 if (!test_controller(((atkbd_state_t *)kbd->kb_data)->kbdc)) 581 error = EIO; 582 else if (test_kbd_port(((atkbd_state_t *)kbd->kb_data)->kbdc) != 0) 583 error = EIO; 584 splx(s); 585 586 return error; 587 } 588 589 /* 590 * Enable the access to the device; until this function is called, 591 * the client cannot read from the keyboard. 592 */ 593 static int 594 atkbd_enable(keyboard_t *kbd) 595 { 596 int s; 597 598 s = spltty(); 599 KBD_ACTIVATE(kbd); 600 splx(s); 601 return 0; 602 } 603 604 /* disallow the access to the device */ 605 static int 606 atkbd_disable(keyboard_t *kbd) 607 { 608 int s; 609 610 s = spltty(); 611 KBD_DEACTIVATE(kbd); 612 splx(s); 613 return 0; 614 } 615 616 /* read one byte from the keyboard if it's allowed */ 617 static int 618 atkbd_read(keyboard_t *kbd, int wait) 619 { 620 int c; 621 622 if (wait) 623 c = read_kbd_data(((atkbd_state_t *)kbd->kb_data)->kbdc); 624 else 625 c = read_kbd_data_no_wait(((atkbd_state_t *)kbd->kb_data)->kbdc); 626 if (c != -1) 627 ++kbd->kb_count; 628 return (KBD_IS_ACTIVE(kbd) ? c : -1); 629 } 630 631 /* check if data is waiting */ 632 static int 633 atkbd_check(keyboard_t *kbd) 634 { 635 if (!KBD_IS_ACTIVE(kbd)) 636 return FALSE; 637 return kbdc_data_ready(((atkbd_state_t *)kbd->kb_data)->kbdc); 638 } 639 640 /* read char from the keyboard */ 641 static u_int 642 atkbd_read_char(keyboard_t *kbd, int wait) 643 { 644 atkbd_state_t *state; 645 u_int action; 646 int scancode; 647 int keycode; 648 649 state = (atkbd_state_t *)kbd->kb_data; 650 next_code: 651 /* do we have a composed char to return? */ 652 if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0)) { 653 action = state->ks_composed_char; 654 state->ks_composed_char = 0; 655 if (action > UCHAR_MAX) 656 return ERRKEY; 657 return action; 658 } 659 660 /* see if there is something in the keyboard port */ 661 if (wait) { 662 do { 663 scancode = read_kbd_data(state->kbdc); 664 } while (scancode == -1); 665 } else { 666 scancode = read_kbd_data_no_wait(state->kbdc); 667 if (scancode == -1) 668 return NOKEY; 669 } 670 ++kbd->kb_count; 671 672 #if KBDIO_DEBUG >= 10 673 printf("atkbd_read_char(): scancode:0x%x\n", scancode); 674 #endif 675 676 #ifdef EVDEV_SUPPORT 677 /* push evdev event */ 678 if (evdev_rcpt_mask & EVDEV_RCPT_HW_KBD && state->ks_evdev != NULL) { 679 keycode = evdev_scancode2key(&state->ks_evdev_state, 680 scancode); 681 682 if (keycode != KEY_RESERVED) { 683 evdev_push_event(state->ks_evdev, EV_KEY, 684 (uint16_t)keycode, scancode & 0x80 ? 0 : 1); 685 evdev_sync(state->ks_evdev); 686 } 687 } 688 #endif 689 690 /* return the byte as is for the K_RAW mode */ 691 if (state->ks_mode == K_RAW) 692 return scancode; 693 694 /* translate the scan code into a keycode */ 695 keycode = scancode & 0x7F; 696 switch (state->ks_prefix) { 697 case 0x00: /* normal scancode */ 698 switch(scancode) { 699 case 0xB8: /* left alt (compose key) released */ 700 if (state->ks_flags & COMPOSE) { 701 state->ks_flags &= ~COMPOSE; 702 if (state->ks_composed_char > UCHAR_MAX) 703 state->ks_composed_char = 0; 704 } 705 break; 706 case 0x38: /* left alt (compose key) pressed */ 707 if (!(state->ks_flags & COMPOSE)) { 708 state->ks_flags |= COMPOSE; 709 state->ks_composed_char = 0; 710 } 711 break; 712 case 0xE0: 713 case 0xE1: 714 state->ks_prefix = scancode; 715 goto next_code; 716 } 717 break; 718 case 0xE0: /* 0xE0 prefix */ 719 state->ks_prefix = 0; 720 switch (keycode) { 721 case 0x1C: /* right enter key */ 722 keycode = 0x59; 723 break; 724 case 0x1D: /* right ctrl key */ 725 keycode = 0x5A; 726 break; 727 case 0x35: /* keypad divide key */ 728 keycode = 0x5B; 729 break; 730 case 0x37: /* print scrn key */ 731 keycode = 0x5C; 732 break; 733 case 0x38: /* right alt key (alt gr) */ 734 keycode = 0x5D; 735 break; 736 case 0x46: /* ctrl-pause/break on AT 101 (see below) */ 737 keycode = 0x68; 738 break; 739 case 0x47: /* grey home key */ 740 keycode = 0x5E; 741 break; 742 case 0x48: /* grey up arrow key */ 743 keycode = 0x5F; 744 break; 745 case 0x49: /* grey page up key */ 746 keycode = 0x60; 747 break; 748 case 0x4B: /* grey left arrow key */ 749 keycode = 0x61; 750 break; 751 case 0x4D: /* grey right arrow key */ 752 keycode = 0x62; 753 break; 754 case 0x4F: /* grey end key */ 755 keycode = 0x63; 756 break; 757 case 0x50: /* grey down arrow key */ 758 keycode = 0x64; 759 break; 760 case 0x51: /* grey page down key */ 761 keycode = 0x65; 762 break; 763 case 0x52: /* grey insert key */ 764 keycode = 0x66; 765 break; 766 case 0x53: /* grey delete key */ 767 keycode = 0x67; 768 break; 769 /* the following 3 are only used on the MS "Natural" keyboard */ 770 case 0x5b: /* left Window key */ 771 keycode = 0x69; 772 break; 773 case 0x5c: /* right Window key */ 774 keycode = 0x6a; 775 break; 776 case 0x5d: /* menu key */ 777 keycode = 0x6b; 778 break; 779 case 0x5e: /* power key */ 780 keycode = 0x6d; 781 break; 782 case 0x5f: /* sleep key */ 783 keycode = 0x6e; 784 break; 785 case 0x63: /* wake key */ 786 keycode = 0x6f; 787 break; 788 default: /* ignore everything else */ 789 goto next_code; 790 } 791 break; 792 case 0xE1: /* 0xE1 prefix */ 793 /* 794 * The pause/break key on the 101 keyboard produces: 795 * E1-1D-45 E1-9D-C5 796 * Ctrl-pause/break produces: 797 * E0-46 E0-C6 (See above.) 798 */ 799 state->ks_prefix = 0; 800 if (keycode == 0x1D) 801 state->ks_prefix = 0x1D; 802 goto next_code; 803 /* NOT REACHED */ 804 case 0x1D: /* pause / break */ 805 state->ks_prefix = 0; 806 if (keycode != 0x45) 807 goto next_code; 808 keycode = 0x68; 809 break; 810 } 811 812 if (kbd->kb_type == KB_84) { 813 switch (keycode) { 814 case 0x37: /* *(numpad)/print screen */ 815 if (state->ks_flags & SHIFTS) 816 keycode = 0x5c; /* print screen */ 817 break; 818 case 0x45: /* num lock/pause */ 819 if (state->ks_flags & CTLS) 820 keycode = 0x68; /* pause */ 821 break; 822 case 0x46: /* scroll lock/break */ 823 if (state->ks_flags & CTLS) 824 keycode = 0x6c; /* break */ 825 break; 826 } 827 } else if (kbd->kb_type == KB_101) { 828 switch (keycode) { 829 case 0x5c: /* print screen */ 830 if (state->ks_flags & ALTS) 831 keycode = 0x54; /* sysrq */ 832 break; 833 case 0x68: /* pause/break */ 834 if (state->ks_flags & CTLS) 835 keycode = 0x6c; /* break */ 836 break; 837 } 838 } 839 840 /* return the key code in the K_CODE mode */ 841 if (state->ks_mode == K_CODE) 842 return (keycode | (scancode & 0x80)); 843 844 /* compose a character code */ 845 if (state->ks_flags & COMPOSE) { 846 switch (keycode | (scancode & 0x80)) { 847 /* key pressed, process it */ 848 case 0x47: case 0x48: case 0x49: /* keypad 7,8,9 */ 849 state->ks_composed_char *= 10; 850 state->ks_composed_char += keycode - 0x40; 851 if (state->ks_composed_char > UCHAR_MAX) 852 return ERRKEY; 853 goto next_code; 854 case 0x4B: case 0x4C: case 0x4D: /* keypad 4,5,6 */ 855 state->ks_composed_char *= 10; 856 state->ks_composed_char += keycode - 0x47; 857 if (state->ks_composed_char > UCHAR_MAX) 858 return ERRKEY; 859 goto next_code; 860 case 0x4F: case 0x50: case 0x51: /* keypad 1,2,3 */ 861 state->ks_composed_char *= 10; 862 state->ks_composed_char += keycode - 0x4E; 863 if (state->ks_composed_char > UCHAR_MAX) 864 return ERRKEY; 865 goto next_code; 866 case 0x52: /* keypad 0 */ 867 state->ks_composed_char *= 10; 868 if (state->ks_composed_char > UCHAR_MAX) 869 return ERRKEY; 870 goto next_code; 871 872 /* key released, no interest here */ 873 case 0xC7: case 0xC8: case 0xC9: /* keypad 7,8,9 */ 874 case 0xCB: case 0xCC: case 0xCD: /* keypad 4,5,6 */ 875 case 0xCF: case 0xD0: case 0xD1: /* keypad 1,2,3 */ 876 case 0xD2: /* keypad 0 */ 877 goto next_code; 878 879 case 0x38: /* left alt key */ 880 break; 881 882 default: 883 if (state->ks_composed_char > 0) { 884 state->ks_flags &= ~COMPOSE; 885 state->ks_composed_char = 0; 886 return ERRKEY; 887 } 888 break; 889 } 890 } 891 892 /* keycode to key action */ 893 action = genkbd_keyaction(kbd, keycode, scancode & 0x80, 894 &state->ks_state, &state->ks_accents); 895 if (action == NOKEY) 896 goto next_code; 897 else 898 return action; 899 } 900 901 /* check if char is waiting */ 902 static int 903 atkbd_check_char(keyboard_t *kbd) 904 { 905 atkbd_state_t *state; 906 907 if (!KBD_IS_ACTIVE(kbd)) 908 return FALSE; 909 state = (atkbd_state_t *)kbd->kb_data; 910 if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0)) 911 return TRUE; 912 return kbdc_data_ready(state->kbdc); 913 } 914 915 /* some useful control functions */ 916 static int 917 atkbd_ioctl(keyboard_t *kbd, u_long cmd, caddr_t arg) 918 { 919 /* translate LED_XXX bits into the device specific bits */ 920 static u_char ledmap[8] = { 921 0, 4, 2, 6, 1, 5, 3, 7, 922 }; 923 atkbd_state_t *state = kbd->kb_data; 924 int error; 925 int s; 926 int i; 927 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 928 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 929 int ival; 930 #endif 931 932 s = spltty(); 933 switch (cmd) { 934 935 case KDGKBMODE: /* get keyboard mode */ 936 *(int *)arg = state->ks_mode; 937 break; 938 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 939 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 940 case _IO('K', 7): 941 ival = IOCPARM_IVAL(arg); 942 arg = (caddr_t)&ival; 943 /* FALLTHROUGH */ 944 #endif 945 case KDSKBMODE: /* set keyboard mode */ 946 switch (*(int *)arg) { 947 case K_XLATE: 948 if (state->ks_mode != K_XLATE) { 949 /* make lock key state and LED state match */ 950 state->ks_state &= ~LOCK_MASK; 951 state->ks_state |= KBD_LED_VAL(kbd); 952 } 953 /* FALLTHROUGH */ 954 case K_RAW: 955 case K_CODE: 956 if (state->ks_mode != *(int *)arg) { 957 atkbd_clear_state(kbd); 958 state->ks_mode = *(int *)arg; 959 } 960 break; 961 default: 962 splx(s); 963 return EINVAL; 964 } 965 break; 966 967 case KDGETLED: /* get keyboard LED */ 968 *(int *)arg = KBD_LED_VAL(kbd); 969 break; 970 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 971 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 972 case _IO('K', 66): 973 ival = IOCPARM_IVAL(arg); 974 arg = (caddr_t)&ival; 975 /* FALLTHROUGH */ 976 #endif 977 case KDSETLED: /* set keyboard LED */ 978 /* NOTE: lock key state in ks_state won't be changed */ 979 if (*(int *)arg & ~LOCK_MASK) { 980 splx(s); 981 return EINVAL; 982 } 983 i = *(int *)arg; 984 /* replace CAPS LED with ALTGR LED for ALTGR keyboards */ 985 if (state->ks_mode == K_XLATE && 986 kbd->kb_keymap->n_keys > ALTGR_OFFSET) { 987 if (i & ALKED) 988 i |= CLKED; 989 else 990 i &= ~CLKED; 991 } 992 if (KBD_HAS_DEVICE(kbd)) { 993 error = write_kbd(state->kbdc, KBDC_SET_LEDS, 994 ledmap[i & LED_MASK]); 995 if (error) { 996 splx(s); 997 return error; 998 } 999 } 1000 #ifdef EVDEV_SUPPORT 1001 /* push LED states to evdev */ 1002 if (state->ks_evdev != NULL && 1003 evdev_rcpt_mask & EVDEV_RCPT_HW_KBD) 1004 evdev_push_leds(state->ks_evdev, *(int *)arg); 1005 #endif 1006 KBD_LED_VAL(kbd) = *(int *)arg; 1007 break; 1008 1009 case KDGKBSTATE: /* get lock key state */ 1010 *(int *)arg = state->ks_state & LOCK_MASK; 1011 break; 1012 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 1013 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 1014 case _IO('K', 20): 1015 ival = IOCPARM_IVAL(arg); 1016 arg = (caddr_t)&ival; 1017 /* FALLTHROUGH */ 1018 #endif 1019 case KDSKBSTATE: /* set lock key state */ 1020 if (*(int *)arg & ~LOCK_MASK) { 1021 splx(s); 1022 return EINVAL; 1023 } 1024 state->ks_state &= ~LOCK_MASK; 1025 state->ks_state |= *(int *)arg; 1026 splx(s); 1027 /* set LEDs and quit */ 1028 return atkbd_ioctl(kbd, KDSETLED, arg); 1029 1030 case KDSETREPEAT: /* set keyboard repeat rate (new interface) */ 1031 splx(s); 1032 if (!KBD_HAS_DEVICE(kbd)) 1033 return 0; 1034 i = typematic(((int *)arg)[0], ((int *)arg)[1]); 1035 error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, i); 1036 if (error == 0) { 1037 kbd->kb_delay1 = typematic_delay(i); 1038 kbd->kb_delay2 = typematic_rate(i); 1039 #ifdef EVDEV_SUPPORT 1040 if (state->ks_evdev != NULL && 1041 evdev_rcpt_mask & EVDEV_RCPT_HW_KBD) 1042 evdev_push_repeats(state->ks_evdev, kbd); 1043 #endif 1044 } 1045 return error; 1046 1047 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 1048 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 1049 case _IO('K', 67): 1050 ival = IOCPARM_IVAL(arg); 1051 arg = (caddr_t)&ival; 1052 /* FALLTHROUGH */ 1053 #endif 1054 case KDSETRAD: /* set keyboard repeat rate (old interface) */ 1055 splx(s); 1056 if (!KBD_HAS_DEVICE(kbd)) 1057 return 0; 1058 error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, *(int *)arg); 1059 if (error == 0) { 1060 kbd->kb_delay1 = typematic_delay(*(int *)arg); 1061 kbd->kb_delay2 = typematic_rate(*(int *)arg); 1062 #ifdef EVDEV_SUPPORT 1063 if (state->ks_evdev != NULL && 1064 evdev_rcpt_mask & EVDEV_RCPT_HW_KBD) 1065 evdev_push_repeats(state->ks_evdev, kbd); 1066 #endif 1067 } 1068 return error; 1069 1070 case PIO_KEYMAP: /* set keyboard translation table */ 1071 case OPIO_KEYMAP: /* set keyboard translation table (compat) */ 1072 case PIO_KEYMAPENT: /* set keyboard translation table entry */ 1073 case PIO_DEADKEYMAP: /* set accent key translation table */ 1074 state->ks_accents = 0; 1075 /* FALLTHROUGH */ 1076 default: 1077 splx(s); 1078 return genkbd_commonioctl(kbd, cmd, arg); 1079 } 1080 1081 splx(s); 1082 return 0; 1083 } 1084 1085 /* lock the access to the keyboard */ 1086 static int 1087 atkbd_lock(keyboard_t *kbd, int lock) 1088 { 1089 return kbdc_lock(((atkbd_state_t *)kbd->kb_data)->kbdc, lock); 1090 } 1091 1092 /* clear the internal state of the keyboard */ 1093 static void 1094 atkbd_clear_state(keyboard_t *kbd) 1095 { 1096 atkbd_state_t *state; 1097 1098 state = (atkbd_state_t *)kbd->kb_data; 1099 state->ks_flags = 0; 1100 state->ks_polling = 0; 1101 state->ks_state &= LOCK_MASK; /* preserve locking key state */ 1102 state->ks_accents = 0; 1103 state->ks_composed_char = 0; 1104 #if 0 1105 state->ks_prefix = 0; /* XXX */ 1106 #endif 1107 } 1108 1109 /* save the internal state */ 1110 static int 1111 atkbd_get_state(keyboard_t *kbd, void *buf, size_t len) 1112 { 1113 if (len == 0) 1114 return sizeof(atkbd_state_t); 1115 if (len < sizeof(atkbd_state_t)) 1116 return -1; 1117 bcopy(kbd->kb_data, buf, sizeof(atkbd_state_t)); 1118 return 0; 1119 } 1120 1121 /* set the internal state */ 1122 static int 1123 atkbd_set_state(keyboard_t *kbd, void *buf, size_t len) 1124 { 1125 if (len < sizeof(atkbd_state_t)) 1126 return ENOMEM; 1127 if (((atkbd_state_t *)kbd->kb_data)->kbdc 1128 != ((atkbd_state_t *)buf)->kbdc) 1129 return ENOMEM; 1130 bcopy(buf, kbd->kb_data, sizeof(atkbd_state_t)); 1131 return 0; 1132 } 1133 1134 static int 1135 atkbd_poll(keyboard_t *kbd, int on) 1136 { 1137 atkbd_state_t *state; 1138 int s; 1139 1140 state = (atkbd_state_t *)kbd->kb_data; 1141 s = spltty(); 1142 if (on) 1143 ++state->ks_polling; 1144 else 1145 --state->ks_polling; 1146 splx(s); 1147 return 0; 1148 } 1149 1150 static void 1151 atkbd_shutdown_final(void *v) 1152 { 1153 #ifdef __sparc64__ 1154 keyboard_t *kbd = v; 1155 KBDC kbdc = ((atkbd_state_t *)kbd->kb_data)->kbdc; 1156 1157 /* 1158 * Turn off the translation in preparation for handing the keyboard 1159 * over to the OFW as the OBP driver doesn't use translation and 1160 * also doesn't disable it itself resulting in a broken keymap at 1161 * the boot prompt. Also disable the aux port and the interrupts as 1162 * the OBP driver doesn't use them, i.e. polls the keyboard. Not 1163 * disabling the interrupts doesn't cause real problems but the 1164 * responsiveness is a bit better when they are turned off. 1165 */ 1166 send_kbd_command(kbdc, KBDC_DISABLE_KBD); 1167 set_controller_command_byte(kbdc, 1168 KBD_AUX_CONTROL_BITS | KBD_KBD_CONTROL_BITS | KBD_TRANSLATION, 1169 KBD_DISABLE_AUX_PORT | KBD_DISABLE_KBD_INT | KBD_ENABLE_KBD_PORT); 1170 send_kbd_command(kbdc, KBDC_ENABLE_KBD); 1171 #endif 1172 } 1173 1174 static int 1175 atkbd_reset(KBDC kbdc, int flags, int c) 1176 { 1177 /* reset keyboard hardware */ 1178 if (!(flags & KB_CONF_NO_RESET) && !reset_kbd(kbdc)) { 1179 /* 1180 * KEYBOARD ERROR 1181 * Keyboard reset may fail either because the keyboard 1182 * doen't exist, or because the keyboard doesn't pass 1183 * the self-test, or the keyboard controller on the 1184 * motherboard and the keyboard somehow fail to shake hands. 1185 * It is just possible, particularly in the last case, 1186 * that the keyboard controller may be left in a hung state. 1187 * test_controller() and test_kbd_port() appear to bring 1188 * the keyboard controller back (I don't know why and how, 1189 * though.) 1190 */ 1191 empty_both_buffers(kbdc, 10); 1192 test_controller(kbdc); 1193 test_kbd_port(kbdc); 1194 /* 1195 * We could disable the keyboard port and interrupt... but, 1196 * the keyboard may still exist (see above). 1197 */ 1198 set_controller_command_byte(kbdc, 1199 ALLOW_DISABLE_KBD(kbdc) ? 0xff : KBD_KBD_CONTROL_BITS, c); 1200 if (bootverbose) 1201 printf("atkbd: failed to reset the keyboard.\n"); 1202 return (EIO); 1203 } 1204 return (0); 1205 } 1206 1207 /* local functions */ 1208 1209 static int 1210 set_typematic(keyboard_t *kbd) 1211 { 1212 int val, error; 1213 atkbd_state_t *state = kbd->kb_data; 1214 1215 val = typematic(DEFAULT_DELAY, DEFAULT_RATE); 1216 error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, val); 1217 if (error == 0) { 1218 kbd->kb_delay1 = typematic_delay(val); 1219 kbd->kb_delay2 = typematic_rate(val); 1220 } 1221 1222 return (error); 1223 } 1224 1225 static int 1226 setup_kbd_port(KBDC kbdc, int port, int intr) 1227 { 1228 if (!set_controller_command_byte(kbdc, 1229 KBD_KBD_CONTROL_BITS, 1230 ((port) ? KBD_ENABLE_KBD_PORT : KBD_DISABLE_KBD_PORT) 1231 | ((intr) ? KBD_ENABLE_KBD_INT : KBD_DISABLE_KBD_INT))) 1232 return 1; 1233 return 0; 1234 } 1235 1236 static int 1237 get_kbd_echo(KBDC kbdc) 1238 { 1239 /* enable the keyboard port, but disable the keyboard intr. */ 1240 if (setup_kbd_port(kbdc, TRUE, FALSE)) 1241 /* CONTROLLER ERROR: there is very little we can do... */ 1242 return ENXIO; 1243 1244 /* see if something is present */ 1245 write_kbd_command(kbdc, KBDC_ECHO); 1246 if (read_kbd_data(kbdc) != KBD_ECHO) { 1247 empty_both_buffers(kbdc, 10); 1248 test_controller(kbdc); 1249 test_kbd_port(kbdc); 1250 return ENXIO; 1251 } 1252 1253 /* enable the keyboard port and intr. */ 1254 if (setup_kbd_port(kbdc, TRUE, TRUE)) { 1255 /* 1256 * CONTROLLER ERROR 1257 * This is serious; the keyboard intr is left disabled! 1258 */ 1259 return ENXIO; 1260 } 1261 1262 return 0; 1263 } 1264 1265 static int 1266 probe_keyboard(KBDC kbdc, int flags) 1267 { 1268 /* 1269 * Don't try to print anything in this function. The low-level 1270 * console may not have been initialized yet... 1271 */ 1272 int err; 1273 int c; 1274 int m; 1275 1276 if (!kbdc_lock(kbdc, TRUE)) { 1277 /* driver error? */ 1278 return ENXIO; 1279 } 1280 1281 /* temporarily block data transmission from the keyboard */ 1282 write_controller_command(kbdc, KBDC_DISABLE_KBD_PORT); 1283 1284 /* flush any noise in the buffer */ 1285 empty_both_buffers(kbdc, 100); 1286 1287 /* save the current keyboard controller command byte */ 1288 m = kbdc_get_device_mask(kbdc) & ~KBD_KBD_CONTROL_BITS; 1289 c = get_controller_command_byte(kbdc); 1290 if (c == -1) { 1291 /* CONTROLLER ERROR */ 1292 kbdc_set_device_mask(kbdc, m); 1293 kbdc_lock(kbdc, FALSE); 1294 return ENXIO; 1295 } 1296 1297 /* 1298 * The keyboard may have been screwed up by the boot block. 1299 * We may just be able to recover from error by testing the controller 1300 * and the keyboard port. The controller command byte needs to be 1301 * saved before this recovery operation, as some controllers seem 1302 * to set the command byte to particular values. 1303 */ 1304 test_controller(kbdc); 1305 if (!(flags & KB_CONF_NO_PROBE_TEST)) 1306 test_kbd_port(kbdc); 1307 1308 err = get_kbd_echo(kbdc); 1309 1310 /* 1311 * Even if the keyboard doesn't seem to be present (err != 0), 1312 * we shall enable the keyboard port and interrupt so that 1313 * the driver will be operable when the keyboard is attached 1314 * to the system later. It is NOT recommended to hot-plug 1315 * the AT keyboard, but many people do so... 1316 */ 1317 kbdc_set_device_mask(kbdc, m | KBD_KBD_CONTROL_BITS); 1318 setup_kbd_port(kbdc, TRUE, TRUE); 1319 #if 0 1320 if (err == 0) { 1321 kbdc_set_device_mask(kbdc, m | KBD_KBD_CONTROL_BITS); 1322 } else { 1323 /* try to restore the command byte as before */ 1324 set_controller_command_byte(kbdc, 1325 ALLOW_DISABLE_KBD(kbdc) ? 0xff : KBD_KBD_CONTROL_BITS, c); 1326 kbdc_set_device_mask(kbdc, m); 1327 } 1328 #endif 1329 1330 kbdc_lock(kbdc, FALSE); 1331 return (HAS_QUIRK(kbdc, KBDC_QUIRK_IGNORE_PROBE_RESULT) ? 0 : err); 1332 } 1333 1334 static int 1335 init_keyboard(KBDC kbdc, int *type, int flags) 1336 { 1337 int codeset; 1338 int id; 1339 int c; 1340 1341 if (!kbdc_lock(kbdc, TRUE)) { 1342 /* driver error? */ 1343 return EIO; 1344 } 1345 1346 /* temporarily block data transmission from the keyboard */ 1347 write_controller_command(kbdc, KBDC_DISABLE_KBD_PORT); 1348 1349 /* save the current controller command byte */ 1350 empty_both_buffers(kbdc, 200); 1351 c = get_controller_command_byte(kbdc); 1352 if (c == -1) { 1353 /* CONTROLLER ERROR */ 1354 kbdc_lock(kbdc, FALSE); 1355 printf("atkbd: unable to get the current command byte value.\n"); 1356 return EIO; 1357 } 1358 if (bootverbose) 1359 printf("atkbd: the current kbd controller command byte %04x\n", 1360 c); 1361 #if 0 1362 /* override the keyboard lock switch */ 1363 c |= KBD_OVERRIDE_KBD_LOCK; 1364 #endif 1365 1366 /* enable the keyboard port, but disable the keyboard intr. */ 1367 if (setup_kbd_port(kbdc, TRUE, FALSE)) { 1368 /* CONTROLLER ERROR: there is very little we can do... */ 1369 printf("atkbd: unable to set the command byte.\n"); 1370 kbdc_lock(kbdc, FALSE); 1371 return EIO; 1372 } 1373 1374 if (HAS_QUIRK(kbdc, KBDC_QUIRK_RESET_AFTER_PROBE) && 1375 atkbd_reset(kbdc, flags, c)) { 1376 kbdc_lock(kbdc, FALSE); 1377 return EIO; 1378 } 1379 1380 /* 1381 * Check if we have an XT keyboard before we attempt to reset it. 1382 * The procedure assumes that the keyboard and the controller have 1383 * been set up properly by BIOS and have not been messed up 1384 * during the boot process. 1385 */ 1386 codeset = -1; 1387 if (flags & KB_CONF_ALT_SCANCODESET) 1388 /* the user says there is a XT keyboard */ 1389 codeset = 1; 1390 #ifdef KBD_DETECT_XT_KEYBOARD 1391 else if ((c & KBD_TRANSLATION) == 0) { 1392 /* SET_SCANCODE_SET is not always supported; ignore error */ 1393 if (send_kbd_command_and_data(kbdc, KBDC_SET_SCANCODE_SET, 0) 1394 == KBD_ACK) 1395 codeset = read_kbd_data(kbdc); 1396 } 1397 if (bootverbose) 1398 printf("atkbd: scancode set %d\n", codeset); 1399 #endif /* KBD_DETECT_XT_KEYBOARD */ 1400 1401 *type = KB_OTHER; 1402 id = get_kbd_id(kbdc); 1403 switch(id) { 1404 case 0x41ab: /* 101/102/... Enhanced */ 1405 case 0x83ab: /* ditto */ 1406 case 0x54ab: /* SpaceSaver */ 1407 case 0x84ab: /* ditto */ 1408 #if 0 1409 case 0x90ab: /* 'G' */ 1410 case 0x91ab: /* 'P' */ 1411 case 0x92ab: /* 'A' */ 1412 #endif 1413 *type = KB_101; 1414 break; 1415 case -1: /* AT 84 keyboard doesn't return ID */ 1416 *type = KB_84; 1417 break; 1418 default: 1419 break; 1420 } 1421 if (bootverbose) 1422 printf("atkbd: keyboard ID 0x%x (%d)\n", id, *type); 1423 1424 if (!HAS_QUIRK(kbdc, KBDC_QUIRK_RESET_AFTER_PROBE) && 1425 atkbd_reset(kbdc, flags, c)) { 1426 kbdc_lock(kbdc, FALSE); 1427 return EIO; 1428 } 1429 1430 /* 1431 * Allow us to set the XT_KEYBD flag so that keyboards 1432 * such as those on the IBM ThinkPad laptop computers can be used 1433 * with the standard console driver. 1434 */ 1435 if (codeset == 1) { 1436 if (send_kbd_command_and_data(kbdc, 1437 KBDC_SET_SCANCODE_SET, codeset) == KBD_ACK) { 1438 /* XT kbd doesn't need scan code translation */ 1439 c &= ~KBD_TRANSLATION; 1440 } else { 1441 /* 1442 * KEYBOARD ERROR 1443 * The XT kbd isn't usable unless the proper scan 1444 * code set is selected. 1445 */ 1446 set_controller_command_byte(kbdc, ALLOW_DISABLE_KBD(kbdc) 1447 ? 0xff : KBD_KBD_CONTROL_BITS, c); 1448 kbdc_lock(kbdc, FALSE); 1449 printf("atkbd: unable to set the XT keyboard mode.\n"); 1450 return EIO; 1451 } 1452 } 1453 1454 #if defined(__sparc64__) 1455 if (send_kbd_command_and_data( 1456 kbdc, KBDC_SET_SCANCODE_SET, 2) != KBD_ACK) { 1457 printf("atkbd: can't set translation.\n"); 1458 } 1459 c |= KBD_TRANSLATION; 1460 #endif 1461 1462 /* 1463 * Some keyboards require a SETLEDS command to be sent after 1464 * the reset command before they will send keystrokes to us 1465 */ 1466 if (HAS_QUIRK(kbdc, KBDC_QUIRK_SETLEDS_ON_INIT) && 1467 send_kbd_command_and_data(kbdc, KBDC_SET_LEDS, 0) != KBD_ACK) { 1468 printf("atkbd: setleds failed\n"); 1469 } 1470 if (!ALLOW_DISABLE_KBD(kbdc)) 1471 send_kbd_command(kbdc, KBDC_ENABLE_KBD); 1472 1473 /* enable the keyboard port and intr. */ 1474 if (!set_controller_command_byte(kbdc, 1475 KBD_KBD_CONTROL_BITS | KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK, 1476 (c & (KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK)) 1477 | KBD_ENABLE_KBD_PORT | KBD_ENABLE_KBD_INT)) { 1478 /* 1479 * CONTROLLER ERROR 1480 * This is serious; we are left with the disabled 1481 * keyboard intr. 1482 */ 1483 set_controller_command_byte(kbdc, ALLOW_DISABLE_KBD(kbdc) 1484 ? 0xff : (KBD_KBD_CONTROL_BITS | KBD_TRANSLATION | 1485 KBD_OVERRIDE_KBD_LOCK), c); 1486 kbdc_lock(kbdc, FALSE); 1487 printf("atkbd: unable to enable the keyboard port and intr.\n"); 1488 return EIO; 1489 } 1490 1491 kbdc_lock(kbdc, FALSE); 1492 return 0; 1493 } 1494 1495 static int 1496 write_kbd(KBDC kbdc, int command, int data) 1497 { 1498 int s; 1499 1500 /* prevent the timeout routine from polling the keyboard */ 1501 if (!kbdc_lock(kbdc, TRUE)) 1502 return EBUSY; 1503 1504 /* disable the keyboard and mouse interrupt */ 1505 s = spltty(); 1506 #if 0 1507 c = get_controller_command_byte(kbdc); 1508 if ((c == -1) 1509 || !set_controller_command_byte(kbdc, 1510 kbdc_get_device_mask(kbdc), 1511 KBD_DISABLE_KBD_PORT | KBD_DISABLE_KBD_INT 1512 | KBD_DISABLE_AUX_PORT | KBD_DISABLE_AUX_INT)) { 1513 /* CONTROLLER ERROR */ 1514 kbdc_lock(kbdc, FALSE); 1515 splx(s); 1516 return EIO; 1517 } 1518 /* 1519 * Now that the keyboard controller is told not to generate 1520 * the keyboard and mouse interrupts, call `splx()' to allow 1521 * the other tty interrupts. The clock interrupt may also occur, 1522 * but the timeout routine (`scrn_timer()') will be blocked 1523 * by the lock flag set via `kbdc_lock()' 1524 */ 1525 splx(s); 1526 #endif 1527 if (send_kbd_command_and_data(kbdc, command, data) != KBD_ACK) 1528 send_kbd_command(kbdc, KBDC_ENABLE_KBD); 1529 #if 0 1530 /* restore the interrupts */ 1531 if (!set_controller_command_byte(kbdc, kbdc_get_device_mask(kbdc), 1532 c & (KBD_KBD_CONTROL_BITS | KBD_AUX_CONTROL_BITS))) { 1533 /* CONTROLLER ERROR */ 1534 } 1535 #else 1536 splx(s); 1537 #endif 1538 kbdc_lock(kbdc, FALSE); 1539 1540 return 0; 1541 } 1542 1543 static int 1544 get_kbd_id(KBDC kbdc) 1545 { 1546 int id1, id2; 1547 1548 empty_both_buffers(kbdc, 10); 1549 id1 = id2 = -1; 1550 if (send_kbd_command(kbdc, KBDC_SEND_DEV_ID) != KBD_ACK) 1551 return -1; 1552 1553 DELAY(10000); /* 10 msec delay */ 1554 id1 = read_kbd_data(kbdc); 1555 if (id1 != -1) 1556 id2 = read_kbd_data(kbdc); 1557 1558 if ((id1 == -1) || (id2 == -1)) { 1559 empty_both_buffers(kbdc, 10); 1560 test_controller(kbdc); 1561 test_kbd_port(kbdc); 1562 return -1; 1563 } 1564 return ((id2 << 8) | id1); 1565 } 1566 1567 static int delays[] = { 250, 500, 750, 1000 }; 1568 static int rates[] = { 34, 38, 42, 46, 50, 55, 59, 63, 1569 68, 76, 84, 92, 100, 110, 118, 126, 1570 136, 152, 168, 184, 200, 220, 236, 252, 1571 272, 304, 336, 368, 400, 440, 472, 504 }; 1572 1573 static int 1574 typematic_delay(int i) 1575 { 1576 return delays[(i >> 5) & 3]; 1577 } 1578 1579 static int 1580 typematic_rate(int i) 1581 { 1582 return rates[i & 0x1f]; 1583 } 1584 1585 static int 1586 typematic(int delay, int rate) 1587 { 1588 int value; 1589 int i; 1590 1591 for (i = nitems(delays) - 1; i > 0; --i) { 1592 if (delay >= delays[i]) 1593 break; 1594 } 1595 value = i << 5; 1596 for (i = nitems(rates) - 1; i > 0; --i) { 1597 if (rate >= rates[i]) 1598 break; 1599 } 1600 value |= i; 1601 return value; 1602 }
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