1 /*- 2 * (MPSAFE) 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 * $FreeBSD: src/sys/dev/kbd/atkbd.c,v 1.25.2.4 2002/04/08 19:21:38 asmodai Exp $ 29 */ 30 /* 31 * NOTE: All locks are handled by the kbd wrappers. 32 */ 33 34 #include "opt_kbd.h" 35 #include "opt_atkbd.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/proc.h> 42 #include <sys/malloc.h> 43 #include <sys/thread2.h> 44 45 #include <sys/kbio.h> 46 #include "kbdreg.h" 47 #include "atkbdreg.h" 48 #include "atkbdcreg.h" 49 50 #include <bus/isa/isareg.h> 51 52 static timeout_t atkbd_timeout; 53 54 #if 0 55 static int atkbd_setmuxmode(KBDC kbdc, int value, int *mux_version); 56 #endif 57 58 int 59 atkbd_probe_unit(int unit, int ctlr, int irq, int flags) 60 { 61 keyboard_switch_t *sw; 62 int args[2]; 63 int error; 64 65 sw = kbd_get_switch(ATKBD_DRIVER_NAME); 66 if (sw == NULL) { 67 return ENXIO; 68 } 69 70 args[0] = ctlr; 71 args[1] = irq; 72 error = (*sw->probe)(unit, args, flags); 73 74 if (error) 75 return error; 76 return 0; 77 } 78 79 int 80 atkbd_attach_unit(int unit, keyboard_t **kbd, int ctlr, int irq, int flags) 81 { 82 keyboard_switch_t *sw; 83 int args[2]; 84 int error; 85 86 sw = kbd_get_switch(ATKBD_DRIVER_NAME); 87 if (sw == NULL) { 88 return ENXIO; 89 } 90 91 /* reset, initialize and enable the device */ 92 args[0] = ctlr; 93 args[1] = irq; 94 *kbd = NULL; 95 error = (*sw->probe)(unit, args, flags); 96 if (error) { 97 return error; 98 } 99 error = (*sw->init)(unit, kbd, args, flags); 100 if (error) { 101 return error; 102 } 103 (*sw->enable)(*kbd); 104 105 #ifdef KBD_INSTALL_CDEV 106 /* attach a virtual keyboard cdev */ 107 error = kbd_attach(*kbd); 108 if (error) { 109 return error; 110 } 111 #endif 112 113 /* 114 * This is a kludge to compensate for lost keyboard interrupts. 115 * A similar code used to be in syscons. See below. XXX 116 */ 117 atkbd_timeout(*kbd); 118 119 if (bootverbose) 120 (*sw->diag)(*kbd, bootverbose); 121 122 return 0; 123 } 124 125 static void 126 atkbd_timeout(void *arg) 127 { 128 keyboard_t *kbd; 129 130 /* 131 * The original text of the following comments are extracted 132 * from syscons.c (1.287) 133 * 134 * With release 2.1 of the Xaccel server, the keyboard is left 135 * hanging pretty often. Apparently an interrupt from the 136 * keyboard is lost, and I don't know why (yet). 137 * This ugly hack calls the low-level interrupt routine if input 138 * is ready for the keyboard and conveniently hides the problem. XXX 139 * 140 * Try removing anything stuck in the keyboard controller; whether 141 * it's a keyboard scan code or mouse data. The low-level 142 * interrupt routine doesn't read the mouse data directly, 143 * but the keyboard controller driver will, as a side effect. 144 */ 145 /* 146 * And here is bde's original comment about this: 147 * 148 * This is necessary to handle edge triggered interrupts - if we 149 * returned when our IRQ is high due to unserviced input, then there 150 * would be no more keyboard IRQs until the keyboard is reset by 151 * external powers. 152 * 153 * The keyboard apparently unwedges the irq in most cases. 154 */ 155 crit_enter(); 156 kbd = (keyboard_t *)arg; 157 if (kbd_lock(kbd, TRUE)) { 158 /* 159 * We have seen the lock flag is not set. Let's reset 160 * the flag early, otherwise the LED update routine fails 161 * which may want the lock during the interrupt routine. 162 */ 163 kbd_lock(kbd, FALSE); 164 if (kbd_check_char(kbd)) 165 kbd_intr(kbd, NULL); 166 } 167 callout_reset(&kbd->kb_atkbd_timeout_ch, hz / 10, atkbd_timeout, arg); 168 crit_exit(); 169 } 170 171 /* LOW-LEVEL */ 172 173 #include <machine/limits.h> 174 #include <machine/clock.h> 175 176 #define ATKBD_DEFAULT 0 177 178 typedef struct atkbd_state { 179 KBDC kbdc; /* keyboard controller */ 180 int ks_mode; /* input mode (K_XLATE,K_RAW,K_CODE) */ 181 int ks_flags; /* flags */ 182 #define COMPOSE (1 << 0) 183 int ks_polling; 184 int ks_state; /* shift/lock key state */ 185 int ks_accents; /* accent key index (> 0) */ 186 u_int ks_composed_char; /* composed char code (> 0) */ 187 u_char ks_prefix; /* AT scan code prefix */ 188 } atkbd_state_t; 189 190 /* keyboard driver declaration */ 191 static int atkbd_configure(int flags); 192 static kbd_probe_t atkbd_probe; 193 static kbd_init_t atkbd_init; 194 static kbd_term_t atkbd_term; 195 static kbd_intr_t atkbd_intr; 196 static kbd_test_if_t atkbd_test_if; 197 static kbd_enable_t atkbd_enable; 198 static kbd_disable_t atkbd_disable; 199 static kbd_read_t atkbd_read; 200 static kbd_check_t atkbd_check; 201 static kbd_read_char_t atkbd_read_char; 202 static kbd_check_char_t atkbd_check_char; 203 static kbd_ioctl_t atkbd_ioctl; 204 static kbd_lock_t atkbd_lock; 205 static kbd_clear_state_t atkbd_clear_state; 206 static kbd_get_state_t atkbd_get_state; 207 static kbd_set_state_t atkbd_set_state; 208 static kbd_poll_mode_t atkbd_poll; 209 210 keyboard_switch_t atkbdsw = { 211 atkbd_probe, 212 atkbd_init, 213 atkbd_term, 214 atkbd_intr, 215 atkbd_test_if, 216 atkbd_enable, 217 atkbd_disable, 218 atkbd_read, 219 atkbd_check, 220 atkbd_read_char, 221 atkbd_check_char, 222 atkbd_ioctl, 223 atkbd_lock, 224 atkbd_clear_state, 225 atkbd_get_state, 226 atkbd_set_state, 227 genkbd_get_fkeystr, 228 atkbd_poll, 229 genkbd_diag, 230 }; 231 232 KEYBOARD_DRIVER(atkbd, atkbdsw, atkbd_configure); 233 234 /* local functions */ 235 static int get_typematic(keyboard_t *kbd); 236 static int setup_kbd_port(KBDC kbdc, int port, int intr); 237 static int get_kbd_echo(KBDC kbdc); 238 static int probe_keyboard(KBDC kbdc, int flags); 239 static int init_keyboard(KBDC kbdc, int *type, int flags); 240 static int write_kbd(KBDC kbdc, int command, int data); 241 static int get_kbd_id(KBDC kbdc, int cmd); 242 static int typematic(int delay, int rate); 243 static int typematic_delay(int delay); 244 static int typematic_rate(int rate); 245 246 /* local variables */ 247 248 /* the initial key map, accent map and fkey strings */ 249 #ifdef ATKBD_DFLT_KEYMAP 250 #define KBD_DFLT_KEYMAP 251 #include "atkbdmap.h" 252 #endif 253 #include "kbdtables.h" 254 255 /* structures for the default keyboard */ 256 static keyboard_t default_kbd; 257 static atkbd_state_t default_kbd_state; 258 static keymap_t default_keymap; 259 static accentmap_t default_accentmap; 260 static fkeytab_t default_fkeytab[NUM_FKEYS]; 261 262 /* 263 * The back door to the keyboard driver! 264 * This function is called by the console driver, via the kbdio module, 265 * to tickle keyboard drivers when the low-level console is being initialized. 266 * Almost nothing in the kernel has been initialied yet. Try to probe 267 * keyboards if possible. 268 * NOTE: because of the way the low-level console is initialized, this routine 269 * may be called more than once!! 270 */ 271 static int 272 atkbd_configure(int flags) 273 { 274 keyboard_t *kbd; 275 int arg[2]; 276 int i; 277 278 /* 279 * Probe the keyboard controller, if not present or if the driver 280 * is disabled, unregister the keyboard if any. 281 */ 282 if (atkbdc_configure() != 0 || 283 resource_disabled("atkbd", ATKBD_DEFAULT)) { 284 i = kbd_find_keyboard(ATKBD_DRIVER_NAME, ATKBD_DEFAULT); 285 if (i >= 0) { 286 kbd = kbd_get_keyboard(i); 287 KBD_ALWAYS_LOCK(kbd); 288 kbd_unregister(kbd); 289 kbd = NULL; /* huh? */ 290 } 291 return 0; 292 } 293 294 /* XXX: a kludge to obtain the device configuration flags */ 295 if (resource_int_value("atkbd", ATKBD_DEFAULT, "flags", &i) == 0) 296 flags |= i; 297 298 /* probe the default keyboard */ 299 arg[0] = -1; 300 arg[1] = -1; 301 kbd = NULL; 302 if (atkbd_probe(ATKBD_DEFAULT, arg, flags)) { 303 return 0; 304 } 305 if (atkbd_init(ATKBD_DEFAULT, &kbd, arg, flags)) { 306 return 0; 307 } 308 309 /* return the number of found keyboards */ 310 return 1; 311 } 312 313 /* low-level functions */ 314 315 /* detect a keyboard */ 316 static int 317 atkbd_probe(int unit, void *arg, int flags) 318 { 319 KBDC kbdc; 320 int *data = (int *)arg; /* data[0]: controller, data[1]: irq */ 321 322 323 if (unit == ATKBD_DEFAULT) { 324 if (KBD_IS_PROBED(&default_kbd)) { 325 return 0; 326 } 327 } 328 329 kbdc = atkbdc_open(data[0]); 330 if (kbdc == NULL) { 331 return ENXIO; 332 } 333 if (probe_keyboard(kbdc, flags)) { 334 if (flags & KB_CONF_FAIL_IF_NO_KBD) { 335 return ENXIO; 336 } 337 } 338 339 return 0; 340 } 341 342 /* reset and initialize the device */ 343 static int 344 atkbd_init(int unit, keyboard_t **kbdp, void *arg, int flags) 345 { 346 keyboard_t *kbd; 347 atkbd_state_t *state; 348 keymap_t *keymap; 349 accentmap_t *accmap; 350 fkeytab_t *fkeymap; 351 int fkeymap_size; 352 int delay[2]; 353 int *data = (int *)arg; /* data[0]: controller, data[1]: irq */ 354 355 /* XXX */ 356 if (unit == ATKBD_DEFAULT) { 357 *kbdp = kbd = &default_kbd; 358 if (KBD_IS_INITIALIZED(kbd) && KBD_IS_CONFIGURED(kbd)) { 359 return 0; 360 } 361 state = &default_kbd_state; 362 keymap = &default_keymap; 363 accmap = &default_accentmap; 364 fkeymap = default_fkeytab; 365 fkeymap_size = NELEM(default_fkeytab); 366 } else if (*kbdp == NULL) { 367 *kbdp = kbd = kmalloc(sizeof(*kbd), M_DEVBUF, M_WAITOK|M_ZERO); 368 state = kmalloc(sizeof(*state), M_DEVBUF, M_WAITOK|M_ZERO); 369 keymap = kmalloc(sizeof(key_map), M_DEVBUF, M_WAITOK); 370 accmap = kmalloc(sizeof(accent_map), M_DEVBUF, M_WAITOK); 371 fkeymap = kmalloc(sizeof(fkey_tab), M_DEVBUF, M_WAITOK); 372 fkeymap_size = NELEM(fkey_tab); 373 } else if (KBD_IS_INITIALIZED(*kbdp) && KBD_IS_CONFIGURED(*kbdp)) { 374 return 0; 375 } else { 376 kbd = *kbdp; 377 state = (atkbd_state_t *)kbd->kb_data; 378 bzero(state, sizeof(*state)); 379 keymap = kbd->kb_keymap; 380 accmap = kbd->kb_accentmap; 381 fkeymap = kbd->kb_fkeytab; 382 fkeymap_size = kbd->kb_fkeytab_size; 383 } 384 385 if (!KBD_IS_PROBED(kbd)) { 386 state->kbdc = atkbdc_open(data[0]); 387 if (state->kbdc == NULL) { 388 return ENXIO; 389 } 390 kbd_init_struct(kbd, ATKBD_DRIVER_NAME, KB_OTHER, unit, flags, 391 KB_PRI_ATKBD, 0, 0); 392 bcopy(&key_map, keymap, sizeof(key_map)); 393 bcopy(&accent_map, accmap, sizeof(accent_map)); 394 bcopy(fkey_tab, fkeymap, 395 imin(fkeymap_size*sizeof(fkeymap[0]), sizeof(fkey_tab))); 396 kbd_set_maps(kbd, keymap, accmap, fkeymap, fkeymap_size); 397 kbd->kb_data = (void *)state; 398 399 if (probe_keyboard(state->kbdc, flags)) { /* shouldn't happen */ 400 if (flags & KB_CONF_FAIL_IF_NO_KBD) { 401 return ENXIO; 402 } 403 } else { 404 KBD_FOUND_DEVICE(kbd); 405 } 406 atkbd_clear_state(kbd); 407 state->ks_mode = K_XLATE; 408 /* 409 * FIXME: set the initial value for lock keys in ks_state 410 * according to the BIOS data? 411 */ 412 KBD_PROBE_DONE(kbd); 413 } 414 if (!KBD_IS_INITIALIZED(kbd) && !(flags & KB_CONF_PROBE_ONLY)) { 415 kbd->kb_config = flags & ~KB_CONF_PROBE_ONLY; 416 if (!KBD_HAS_DEVICE(kbd) 417 && init_keyboard(state->kbdc, &kbd->kb_type, kbd->kb_config) 418 && (kbd->kb_config & KB_CONF_FAIL_IF_NO_KBD)) { 419 return ENXIO; 420 } 421 atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state); 422 get_typematic(kbd); 423 delay[0] = kbd->kb_delay1; 424 delay[1] = kbd->kb_delay2; 425 atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay); 426 KBD_FOUND_DEVICE(kbd); 427 KBD_INIT_DONE(kbd); 428 } 429 if (!KBD_IS_CONFIGURED(kbd)) { 430 if (kbd_register(kbd) < 0) { 431 return ENXIO; 432 } 433 KBD_CONFIG_DONE(kbd); 434 } 435 436 return 0; 437 } 438 439 /* finish using this keyboard */ 440 static int 441 atkbd_term(keyboard_t *kbd) 442 { 443 kbd_unregister(kbd); 444 return 0; 445 } 446 447 /* keyboard interrupt routine */ 448 static int 449 atkbd_intr(keyboard_t *kbd, void *arg) 450 { 451 atkbd_state_t *state; 452 int delay[2]; 453 int c; 454 455 if (KBD_IS_ACTIVE(kbd) && KBD_IS_BUSY(kbd)) { 456 /* let the callback function to process the input */ 457 (*kbd->kb_callback.kc_func)(kbd, KBDIO_KEYINPUT, 458 kbd->kb_callback.kc_arg); 459 } else { 460 /* read and discard the input; no one is waiting for input */ 461 do { 462 c = atkbd_read_char(kbd, FALSE); 463 } while (c != NOKEY); 464 465 if (!KBD_HAS_DEVICE(kbd)) { 466 /* 467 * The keyboard was not detected before; 468 * it must have been reconnected! 469 */ 470 state = (atkbd_state_t *)kbd->kb_data; 471 init_keyboard(state->kbdc, &kbd->kb_type, 472 kbd->kb_config); 473 atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state); 474 get_typematic(kbd); 475 delay[0] = kbd->kb_delay1; 476 delay[1] = kbd->kb_delay2; 477 atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay); 478 KBD_FOUND_DEVICE(kbd); 479 } 480 } 481 482 return 0; 483 } 484 485 /* test the interface to the device */ 486 static int 487 atkbd_test_if(keyboard_t *kbd) 488 { 489 int error; 490 491 error = 0; 492 empty_both_buffers(((atkbd_state_t *)kbd->kb_data)->kbdc, 10); 493 crit_enter(); 494 if (!test_controller(((atkbd_state_t *)kbd->kb_data)->kbdc)) 495 error = EIO; 496 else if (test_kbd_port(((atkbd_state_t *)kbd->kb_data)->kbdc) != 0) 497 error = EIO; 498 crit_exit(); 499 500 return error; 501 } 502 503 /* 504 * Enable the access to the device; until this function is called, 505 * the client cannot read from the keyboard. 506 */ 507 static int 508 atkbd_enable(keyboard_t *kbd) 509 { 510 crit_enter(); 511 KBD_ACTIVATE(kbd); 512 crit_exit(); 513 return 0; 514 } 515 516 /* disallow the access to the device */ 517 static int 518 atkbd_disable(keyboard_t *kbd) 519 { 520 crit_enter(); 521 KBD_DEACTIVATE(kbd); 522 crit_exit(); 523 return 0; 524 } 525 526 /* read one byte from the keyboard if it's allowed */ 527 static int 528 atkbd_read(keyboard_t *kbd, int wait) 529 { 530 int c, ret; 531 532 if (wait) 533 c = read_kbd_data(((atkbd_state_t *)kbd->kb_data)->kbdc); 534 else 535 c = read_kbd_data_no_wait(((atkbd_state_t *)kbd->kb_data)->kbdc); 536 if (c != -1) 537 ++kbd->kb_count; 538 539 ret = (KBD_IS_ACTIVE(kbd) ? c : -1); 540 541 return ret; 542 } 543 544 /* check if data is waiting */ 545 static int 546 atkbd_check(keyboard_t *kbd) 547 { 548 int ret; 549 550 if (!KBD_IS_ACTIVE(kbd)) { 551 return FALSE; 552 } 553 ret = kbdc_data_ready(((atkbd_state_t *)kbd->kb_data)->kbdc); 554 555 return ret; 556 } 557 558 /* read char from the keyboard */ 559 static u_int 560 atkbd_read_char(keyboard_t *kbd, int wait) 561 { 562 atkbd_state_t *state; 563 u_int action; 564 int scancode; 565 int keycode; 566 567 state = (atkbd_state_t *)kbd->kb_data; 568 next_code: 569 /* do we have a composed char to return? */ 570 if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0)) { 571 action = state->ks_composed_char; 572 state->ks_composed_char = 0; 573 if (action > UCHAR_MAX) { 574 return ERRKEY; 575 } 576 return action; 577 } 578 579 /* see if there is something in the keyboard port */ 580 if (wait) { 581 do { 582 scancode = read_kbd_data(state->kbdc); 583 } while (scancode == -1); 584 } else { 585 scancode = read_kbd_data_no_wait(state->kbdc); 586 if (scancode == -1) { 587 return NOKEY; 588 } 589 } 590 ++kbd->kb_count; 591 592 #if KBDIO_DEBUG >= 10 593 kprintf("atkbd_read_char(): scancode:0x%x\n", scancode); 594 #endif 595 596 /* return the byte as is for the K_RAW mode */ 597 if (state->ks_mode == K_RAW) { 598 return scancode; 599 } 600 601 /* translate the scan code into a keycode */ 602 keycode = scancode & 0x7F; 603 switch (state->ks_prefix) { 604 case 0x00: /* normal scancode */ 605 switch(scancode) { 606 case 0xB8: /* left alt (compose key) released */ 607 if (state->ks_flags & COMPOSE) { 608 state->ks_flags &= ~COMPOSE; 609 if (state->ks_composed_char > UCHAR_MAX) 610 state->ks_composed_char = 0; 611 } 612 break; 613 case 0x38: /* left alt (compose key) pressed */ 614 if (!(state->ks_flags & COMPOSE)) { 615 state->ks_flags |= COMPOSE; 616 state->ks_composed_char = 0; 617 } 618 break; 619 case 0xE0: 620 case 0xE1: 621 state->ks_prefix = scancode; 622 goto next_code; 623 } 624 break; 625 case 0xE0: /* 0xE0 prefix */ 626 state->ks_prefix = 0; 627 switch (keycode) { 628 case 0x1C: /* right enter key */ 629 keycode = 0x59; 630 break; 631 case 0x1D: /* right ctrl key */ 632 keycode = 0x5A; 633 break; 634 case 0x35: /* keypad divide key */ 635 keycode = 0x5B; 636 break; 637 case 0x37: /* print scrn key */ 638 keycode = 0x5C; 639 break; 640 case 0x38: /* right alt key (alt gr) */ 641 keycode = 0x5D; 642 break; 643 case 0x46: /* ctrl-pause/break on AT 101 (see below) */ 644 keycode = 0x68; 645 break; 646 case 0x47: /* grey home key */ 647 keycode = 0x5E; 648 break; 649 case 0x48: /* grey up arrow key */ 650 keycode = 0x5F; 651 break; 652 case 0x49: /* grey page up key */ 653 keycode = 0x60; 654 break; 655 case 0x4B: /* grey left arrow key */ 656 keycode = 0x61; 657 break; 658 case 0x4D: /* grey right arrow key */ 659 keycode = 0x62; 660 break; 661 case 0x4F: /* grey end key */ 662 keycode = 0x63; 663 break; 664 case 0x50: /* grey down arrow key */ 665 keycode = 0x64; 666 break; 667 case 0x51: /* grey page down key */ 668 keycode = 0x65; 669 break; 670 case 0x52: /* grey insert key */ 671 keycode = 0x66; 672 break; 673 case 0x53: /* grey delete key */ 674 keycode = 0x67; 675 break; 676 /* the following 3 are only used on the MS "Natural" keyboard */ 677 case 0x5b: /* left Window key */ 678 keycode = 0x69; 679 break; 680 case 0x5c: /* right Window key */ 681 keycode = 0x6a; 682 break; 683 case 0x5d: /* menu key */ 684 keycode = 0x6b; 685 break; 686 default: /* ignore everything else */ 687 goto next_code; 688 } 689 break; 690 case 0xE1: /* 0xE1 prefix */ 691 /* 692 * The pause/break key on the 101 keyboard produces: 693 * E1-1D-45 E1-9D-C5 694 * Ctrl-pause/break produces: 695 * E0-46 E0-C6 (See above.) 696 */ 697 state->ks_prefix = 0; 698 if (keycode == 0x1D) 699 state->ks_prefix = 0x1D; 700 goto next_code; 701 /* NOT REACHED */ 702 case 0x1D: /* pause / break */ 703 state->ks_prefix = 0; 704 if (keycode != 0x45) 705 goto next_code; 706 keycode = 0x68; 707 break; 708 } 709 710 if (kbd->kb_type == KB_84) { 711 switch (keycode) { 712 case 0x37: /* *(numpad)/print screen */ 713 if (state->ks_flags & SHIFTS) 714 keycode = 0x5c; /* print screen */ 715 break; 716 case 0x45: /* num lock/pause */ 717 if (state->ks_flags & CTLS) 718 keycode = 0x68; /* pause */ 719 break; 720 case 0x46: /* scroll lock/break */ 721 if (state->ks_flags & CTLS) 722 keycode = 0x6c; /* break */ 723 break; 724 } 725 } else if (kbd->kb_type == KB_101) { 726 switch (keycode) { 727 case 0x5c: /* print screen */ 728 if (state->ks_flags & ALTS) 729 keycode = 0x54; /* sysrq */ 730 break; 731 case 0x68: /* pause/break */ 732 if (state->ks_flags & CTLS) 733 keycode = 0x6c; /* break */ 734 break; 735 } 736 } 737 738 /* return the key code in the K_CODE mode */ 739 if (state->ks_mode == K_CODE) { 740 return (keycode | (scancode & 0x80)); 741 } 742 743 /* compose a character code */ 744 if (state->ks_flags & COMPOSE) { 745 switch (keycode | (scancode & 0x80)) { 746 /* key pressed, process it */ 747 case 0x47: case 0x48: case 0x49: /* keypad 7,8,9 */ 748 state->ks_composed_char *= 10; 749 state->ks_composed_char += keycode - 0x40; 750 if (state->ks_composed_char > UCHAR_MAX) 751 return ERRKEY; 752 goto next_code; 753 case 0x4B: case 0x4C: case 0x4D: /* keypad 4,5,6 */ 754 state->ks_composed_char *= 10; 755 state->ks_composed_char += keycode - 0x47; 756 if (state->ks_composed_char > UCHAR_MAX) 757 return ERRKEY; 758 goto next_code; 759 case 0x4F: case 0x50: case 0x51: /* keypad 1,2,3 */ 760 state->ks_composed_char *= 10; 761 state->ks_composed_char += keycode - 0x4E; 762 if (state->ks_composed_char > UCHAR_MAX) 763 return ERRKEY; 764 goto next_code; 765 case 0x52: /* keypad 0 */ 766 state->ks_composed_char *= 10; 767 if (state->ks_composed_char > UCHAR_MAX) 768 return ERRKEY; 769 goto next_code; 770 771 /* key released, no interest here */ 772 case 0xC7: case 0xC8: case 0xC9: /* keypad 7,8,9 */ 773 case 0xCB: case 0xCC: case 0xCD: /* keypad 4,5,6 */ 774 case 0xCF: case 0xD0: case 0xD1: /* keypad 1,2,3 */ 775 case 0xD2: /* keypad 0 */ 776 goto next_code; 777 778 case 0x38: /* left alt key */ 779 break; 780 781 default: 782 if (state->ks_composed_char > 0) { 783 state->ks_flags &= ~COMPOSE; 784 state->ks_composed_char = 0; 785 return ERRKEY; 786 } 787 break; 788 } 789 } 790 791 /* keycode to key action */ 792 action = genkbd_keyaction(kbd, keycode, scancode & 0x80, 793 &state->ks_state, &state->ks_accents); 794 if (action == NOKEY) { 795 goto next_code; 796 } else { 797 return action; 798 } 799 } 800 801 /* check if char is waiting */ 802 static int 803 atkbd_check_char(keyboard_t *kbd) 804 { 805 atkbd_state_t *state; 806 int ret; 807 808 if (!KBD_IS_ACTIVE(kbd)) { 809 return FALSE; 810 } 811 state = (atkbd_state_t *)kbd->kb_data; 812 if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0)) { 813 return TRUE; 814 } 815 ret = kbdc_data_ready(state->kbdc); 816 return ret; 817 } 818 819 /* some useful control functions */ 820 static int 821 atkbd_ioctl(keyboard_t *kbd, u_long cmd, caddr_t arg) 822 { 823 /* trasnlate LED_XXX bits into the device specific bits */ 824 static u_char ledmap[8] = { 825 0, 4, 2, 6, 1, 5, 3, 7, 826 }; 827 atkbd_state_t *state = kbd->kb_data; 828 int error; 829 int i; 830 831 crit_enter(); 832 833 switch (cmd) { 834 835 case KDGKBMODE: /* get keyboard mode */ 836 *(int *)arg = state->ks_mode; 837 break; 838 case KDSKBMODE: /* set keyboard mode */ 839 switch (*(int *)arg) { 840 case K_XLATE: 841 if (state->ks_mode != K_XLATE) { 842 /* make lock key state and LED state match */ 843 state->ks_state &= ~LOCK_MASK; 844 state->ks_state |= KBD_LED_VAL(kbd); 845 } 846 /* FALL THROUGH */ 847 case K_RAW: 848 case K_CODE: 849 if (state->ks_mode != *(int *)arg) { 850 atkbd_clear_state(kbd); 851 state->ks_mode = *(int *)arg; 852 } 853 break; 854 default: 855 crit_exit(); 856 return EINVAL; 857 } 858 break; 859 860 case KDGETLED: /* get keyboard LED */ 861 *(int *)arg = KBD_LED_VAL(kbd); 862 break; 863 case KDSETLED: /* set keyboard LED */ 864 /* NOTE: lock key state in ks_state won't be changed */ 865 if (*(int *)arg & ~LOCK_MASK) { 866 crit_exit(); 867 return EINVAL; 868 } 869 i = *(int *)arg; 870 /* replace CAPS LED with ALTGR LED for ALTGR keyboards */ 871 if (state->ks_mode == K_XLATE && 872 kbd->kb_keymap->n_keys > ALTGR_OFFSET) { 873 if (i & ALKED) 874 i |= CLKED; 875 else 876 i &= ~CLKED; 877 } 878 if (KBD_HAS_DEVICE(kbd)) { 879 error = write_kbd(state->kbdc, KBDC_SET_LEDS, 880 ledmap[i & LED_MASK]); 881 if (error) { 882 crit_exit(); 883 return error; 884 } 885 } 886 KBD_LED_VAL(kbd) = *(int *)arg; 887 break; 888 889 case KDGKBSTATE: /* get lock key state */ 890 *(int *)arg = state->ks_state & LOCK_MASK; 891 break; 892 case KDSKBSTATE: /* set lock key state */ 893 if (*(int *)arg & ~LOCK_MASK) { 894 crit_exit(); 895 return EINVAL; 896 } 897 state->ks_state &= ~LOCK_MASK; 898 state->ks_state |= *(int *)arg; 899 crit_exit(); 900 /* set LEDs and quit */ 901 return atkbd_ioctl(kbd, KDSETLED, arg); 902 903 case KDSETREPEAT: /* set keyboard repeat rate (new interface) */ 904 crit_exit(); 905 if (!KBD_HAS_DEVICE(kbd)) { 906 return 0; 907 } 908 i = typematic(((int *)arg)[0], ((int *)arg)[1]); 909 error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, i); 910 if (error == 0) { 911 kbd->kb_delay1 = typematic_delay(i); 912 kbd->kb_delay2 = typematic_rate(i); 913 } 914 return error; 915 916 case PIO_KEYMAP: /* set keyboard translation table */ 917 case PIO_KEYMAPENT: /* set keyboard translation table entry */ 918 case PIO_DEADKEYMAP: /* set accent key translation table */ 919 state->ks_accents = 0; 920 /* FALL THROUGH */ 921 default: 922 crit_exit(); 923 return genkbd_commonioctl(kbd, cmd, arg); 924 } 925 926 crit_exit(); 927 return 0; 928 } 929 930 /* lock the access to the keyboard */ 931 static int 932 atkbd_lock(keyboard_t *kbd, int lock) 933 { 934 return kbdc_lock(((atkbd_state_t *)kbd->kb_data)->kbdc, lock); 935 } 936 937 /* clear the internal state of the keyboard */ 938 static void 939 atkbd_clear_state(keyboard_t *kbd) 940 { 941 atkbd_state_t *state; 942 943 state = (atkbd_state_t *)kbd->kb_data; 944 state->ks_flags = 0; 945 state->ks_polling = 0; 946 state->ks_state &= LOCK_MASK; /* preserve locking key state */ 947 state->ks_accents = 0; 948 state->ks_composed_char = 0; 949 #if 0 950 state->ks_prefix = 0; /* XXX */ 951 #endif 952 } 953 954 /* save the internal state */ 955 static int 956 atkbd_get_state(keyboard_t *kbd, void *buf, size_t len) 957 { 958 if (len == 0) 959 return sizeof(atkbd_state_t); 960 if (len < sizeof(atkbd_state_t)) 961 return -1; 962 963 bcopy(kbd->kb_data, buf, sizeof(atkbd_state_t)); 964 return 0; 965 } 966 967 /* set the internal state */ 968 static int 969 atkbd_set_state(keyboard_t *kbd, void *buf, size_t len) 970 { 971 if (len < sizeof(atkbd_state_t)) 972 return ENOMEM; 973 if (((atkbd_state_t *)kbd->kb_data)->kbdc 974 != ((atkbd_state_t *)buf)->kbdc) 975 return ENOMEM; 976 bcopy(buf, kbd->kb_data, sizeof(atkbd_state_t)); 977 return 0; 978 } 979 980 static int 981 atkbd_poll(keyboard_t *kbd, int on) 982 { 983 atkbd_state_t *state; 984 985 state = (atkbd_state_t *)kbd->kb_data; 986 crit_enter(); 987 if (on) 988 state->ks_polling = 1; 989 else 990 state->ks_polling = 0; 991 crit_exit(); 992 return 0; 993 } 994 995 /* local functions */ 996 997 static int 998 get_typematic(keyboard_t *kbd) 999 { 1000 return ENODEV; 1001 } 1002 1003 static int 1004 setup_kbd_port(KBDC kbdc, int port, int intr) 1005 { 1006 if (!set_controller_command_byte(kbdc, 1007 KBD_KBD_CONTROL_BITS, 1008 ((port) ? KBD_ENABLE_KBD_PORT : KBD_DISABLE_KBD_PORT) | 1009 ((intr) ? KBD_ENABLE_KBD_INT : KBD_DISABLE_KBD_INT))) 1010 return 1; 1011 return 0; 1012 } 1013 1014 static int 1015 get_kbd_echo(KBDC kbdc) 1016 { 1017 /* enable the keyboard port, but disable the keyboard intr. */ 1018 if (setup_kbd_port(kbdc, TRUE, FALSE)) 1019 /* CONTROLLER ERROR: there is very little we can do... */ 1020 return ENXIO; 1021 1022 /* see if something is present */ 1023 write_kbd_command(kbdc, KBDC_ECHO); 1024 if (read_kbd_data(kbdc) != KBD_ECHO) { 1025 empty_both_buffers(kbdc, 10); 1026 test_controller(kbdc); 1027 test_kbd_port(kbdc); 1028 return ENXIO; 1029 } 1030 1031 /* enable the keyboard port and intr. */ 1032 if (setup_kbd_port(kbdc, TRUE, TRUE)) { 1033 /* 1034 * CONTROLLER ERROR 1035 * This is serious; the keyboard intr is left disabled! 1036 */ 1037 return ENXIO; 1038 } 1039 1040 return 0; 1041 } 1042 1043 static int 1044 probe_keyboard(KBDC kbdc, int flags) 1045 { 1046 /* 1047 * Don't try to print anything in this function. The low-level 1048 * console may not have been initialized yet... 1049 */ 1050 int err; 1051 int c; 1052 1053 if (!kbdc_lock(kbdc, TRUE)) { 1054 /* driver error? */ 1055 return ENXIO; 1056 } 1057 1058 /* 1059 * XXX block data transmission from the keyboard. This can cause 1060 * the keyboard to stop sending keystrokes even when re-enabled 1061 * under certain circumstances if not followed by a full reset. 1062 */ 1063 write_controller_command(kbdc, KBDC_DISABLE_KBD_PORT); 1064 1065 /* flush any noise in the buffer */ 1066 empty_both_buffers(kbdc, 100); 1067 1068 /* save the current keyboard controller command byte */ 1069 c = get_controller_command_byte(kbdc); 1070 if (c == -1) { 1071 /* CONTROLLER ERROR */ 1072 kbdc_lock(kbdc, FALSE); 1073 return ENXIO; 1074 } 1075 1076 /* 1077 * The keyboard may have been screwed up by the boot block. 1078 * We may just be able to recover from error by testing the controller 1079 * and the keyboard port. The controller command byte needs to be 1080 * saved before this recovery operation, as some controllers seem 1081 * to set the command byte to particular values. 1082 */ 1083 test_controller(kbdc); 1084 test_kbd_port(kbdc); 1085 1086 err = get_kbd_echo(kbdc); 1087 1088 /* 1089 * Even if the keyboard doesn't seem to be present (err != 0), 1090 * we shall enable the keyboard port and interrupt so that 1091 * the driver will be operable when the keyboard is attached 1092 * to the system later. It is NOT recommended to hot-plug 1093 * the AT keyboard, but many people do so... 1094 */ 1095 setup_kbd_port(kbdc, TRUE, TRUE); 1096 #if 0 1097 if (err) { 1098 /* try to restore the command byte as before */ 1099 set_controller_command_byte(kbdc, KBD_KBD_CONTROL_BITS, c); 1100 } 1101 #endif 1102 1103 kbdc_lock(kbdc, FALSE); 1104 return err; 1105 } 1106 1107 static int 1108 init_keyboard(KBDC kbdc, int *type, int flags) 1109 { 1110 int codeset; 1111 int id; 1112 int c; 1113 int mux_version; 1114 int mux_mask; 1115 int mux_val; 1116 1117 if (!kbdc_lock(kbdc, TRUE)) { 1118 /* driver error? */ 1119 return EIO; 1120 } 1121 1122 /* 1123 * XXX block data transmission from the keyboard. This can cause 1124 * the keyboard to stop sending keystrokes even when re-enabled 1125 * under certain circumstances if not followed by a full reset. 1126 */ 1127 write_controller_command(kbdc, KBDC_DISABLE_KBD_PORT); 1128 1129 #if 0 1130 if (atkbd_setmuxmode(kbdc, 1, &mux_version)) { 1131 kprintf("atkbd: no mux\n"); 1132 mux_version = -1; 1133 } else { 1134 kprintf("atkbd: mux present version %d\n", mux_version); 1135 } 1136 #else 1137 mux_version = -1; 1138 #endif 1139 1140 /* save the current controller command byte */ 1141 empty_both_buffers(kbdc, 200); 1142 c = get_controller_command_byte(kbdc); 1143 if (c == -1) { 1144 /* CONTROLLER ERROR */ 1145 kbdc_lock(kbdc, FALSE); 1146 kprintf("atkbd: unable to get the current command byte value.\n"); 1147 return EIO; 1148 } 1149 if (bootverbose) 1150 kprintf("atkbd: the current kbd controller command byte %04x\n", 1151 c); 1152 #if 0 1153 /* override the keyboard lock switch */ 1154 c |= KBD_OVERRIDE_KBD_LOCK; 1155 #endif 1156 1157 /* enable the keyboard port, but disable the keyboard intr. */ 1158 if (setup_kbd_port(kbdc, TRUE, FALSE)) { 1159 /* CONTROLLER ERROR: there is very little we can do... */ 1160 kprintf("atkbd: unable to set the command byte.\n"); 1161 kbdc_lock(kbdc, FALSE); 1162 return EIO; 1163 } 1164 1165 /* default codeset */ 1166 codeset = -1; 1167 1168 /* reset keyboard hardware */ 1169 if (!(flags & KB_CONF_NO_RESET) && !reset_kbd(kbdc)) { 1170 /* 1171 * KEYBOARD ERROR 1172 * Keyboard reset may fail either because the keyboard 1173 * doen't exist, or because the keyboard doesn't pass 1174 * the self-test, or the keyboard controller on the 1175 * motherboard and the keyboard somehow fail to shake hands. 1176 * It is just possible, particularly in the last case, 1177 * that the keyoard controller may be left in a hung state. 1178 * test_controller() and test_kbd_port() appear to bring 1179 * the keyboard controller back (I don't know why and how, 1180 * though.) 1181 */ 1182 empty_both_buffers(kbdc, 10); 1183 test_controller(kbdc); 1184 test_kbd_port(kbdc); 1185 /* 1186 * We could disable the keyboard port and interrupt... but, 1187 * the keyboard may still exist (see above). 1188 */ 1189 set_controller_command_byte(kbdc, KBD_KBD_CONTROL_BITS, c); 1190 kbdc_lock(kbdc, FALSE); 1191 if (bootverbose) 1192 kprintf("atkbd: failed to reset the keyboard.\n"); 1193 return EIO; 1194 } 1195 1196 /* 1197 * Check if we have an XT keyboard before we attempt to reset it. 1198 * The procedure assumes that the keyboard and the controller have 1199 * been set up properly by BIOS and have not been messed up 1200 * during the boot process. 1201 */ 1202 codeset = -1; 1203 if (flags & KB_CONF_ALT_SCANCODESET) 1204 /* the user says there is a XT keyboard */ 1205 codeset = 1; 1206 #ifdef KBD_DETECT_XT_KEYBOARD 1207 else if ((c & KBD_TRANSLATION) == 0) { 1208 /* SET_SCANCODE_SET is not always supported; ignore error */ 1209 if (send_kbd_command_and_data(kbdc, KBDC_SET_SCANCODE_SET, 0) 1210 == KBD_ACK) 1211 codeset = read_kbd_data(kbdc); 1212 } 1213 #endif /* KBD_DETECT_XT_KEYBOARD */ 1214 if (bootverbose) 1215 kprintf("atkbd: scancode set %d\n", codeset); 1216 1217 /* 1218 * Get the keyboard id. 1219 */ 1220 *type = KB_OTHER; 1221 id = get_kbd_id(kbdc, ATKBD_CMD_GETID); 1222 switch(id) { 1223 case 0x41ab: /* 101/102/... Enhanced */ 1224 case 0x83ab: /* ditto */ 1225 case 0x54ab: /* SpaceSaver */ 1226 case 0x84ab: /* ditto */ 1227 #if 0 1228 case 0x90ab: /* 'G' */ 1229 case 0x91ab: /* 'P' */ 1230 case 0x92ab: /* 'A' */ 1231 #endif 1232 *type = KB_101; 1233 break; 1234 case -1: /* AT 84 keyboard doesn't return ID */ 1235 *type = KB_84; 1236 break; 1237 default: 1238 break; 1239 } 1240 if (bootverbose) 1241 kprintf("atkbd: keyboard ID 0x%x (%d)\n", id, *type); 1242 1243 /* 1244 * Allow us to set the XT_KEYBD flag in UserConfig so that keyboards 1245 * such as those on the IBM ThinkPad laptop computers can be used 1246 * with the standard console driver. 1247 */ 1248 if (codeset == 1) { 1249 if (send_kbd_command_and_data(kbdc, 1250 KBDC_SET_SCANCODE_SET, codeset) == KBD_ACK) { 1251 /* XT kbd doesn't need scan code translation */ 1252 c &= ~KBD_TRANSLATION; 1253 } else { 1254 /* 1255 * KEYBOARD ERROR 1256 * The XT kbd isn't usable unless the proper scan 1257 * code set is selected. 1258 */ 1259 set_controller_command_byte(kbdc, 1260 KBD_KBD_CONTROL_BITS, c); 1261 kbdc_lock(kbdc, FALSE); 1262 kprintf("atkbd: unable to set the XT keyboard mode.\n"); 1263 return EIO; 1264 } 1265 } 1266 1267 #if 0 1268 if (send_kbd_command_and_data(kbdc, ATKBD_CMD_EX_ENABLE, 0x71) != KBD_ACK) 1269 kprintf("atkbd: can't CMD_EX_ENABLE\n"); 1270 1271 if (send_kbd_command(kbdc, ATKBD_CMD_SETALL_MB) != KBD_ACK) 1272 kprintf("atkbd: can't SETALL_MB\n"); 1273 if (send_kbd_command(kbdc, ATKBD_CMD_SETALL_MBR) != KBD_ACK) 1274 kprintf("atkbd: can't SETALL_MBR\n"); 1275 #endif 1276 #if 0 1277 if (send_kbd_command_and_data(kbdc, ATKBD_CMD_SSCANSET, 2) != KBD_ACK) 1278 kprintf("atkbd: can't SSCANSET\n"); 1279 if (send_kbd_command_and_data(kbdc, ATKBD_CMD_GSCANSET, 0) != KBD_ACK) 1280 kprintf("atkbd: can't SSCANSET\n"); 1281 else 1282 kprintf("atkbd: scanset %d\n", read_kbd_data(kbdc)); 1283 #endif 1284 #if 0 1285 kprintf("atkbd: id %04x\n", get_kbd_id(kbdc, ATKBD_CMD_OK_GETID)); 1286 if (send_kbd_command_and_data(kbdc, ATKBD_CMD_SETLEDS, 0) != KBD_ACK) 1287 kprintf("atkbd: setleds failed\n"); 1288 if (send_kbd_command_and_data(kbdc, ATKBD_CMD_SETREP, 255) != KBD_ACK) 1289 kprintf("atkbd: setrep failed\n"); 1290 if (send_kbd_command(kbdc, ATKBD_CMD_RESEND) != KBD_ACK) 1291 kprintf("atkbd: resend failed\n"); 1292 #endif 1293 /* 1294 * Some keyboards require a SETLEDS command to be sent after 1295 * the reset command before they will send keystrokes to us 1296 * (Acer C720). 1297 */ 1298 if (send_kbd_command_and_data(kbdc, ATKBD_CMD_SETLEDS, 0) != KBD_ACK) 1299 kprintf("atkbd: setleds failed\n"); 1300 send_kbd_command(kbdc, ATKBD_CMD_ENABLE); 1301 1302 #if 0 1303 /* DEBUGGING */ 1304 { 1305 int retry; 1306 int c; 1307 kprintf("atkbd: waiting for keypress"); 1308 for (retry = 0; retry < 10; ++retry) { 1309 c = read_kbd_data_no_wait(kbdc); 1310 kprintf(" %d", c); 1311 tsleep(&c, 0, "wait", hz); 1312 } 1313 kprintf("\n"); 1314 } 1315 #endif 1316 1317 if (mux_version == -1) { 1318 mux_mask = 0; 1319 mux_val = 0; 1320 } else { 1321 mux_mask = KBD_AUX_CONTROL_BITS; 1322 mux_val = 0; 1323 kprintf("atkbd: setaux for multiplexer\n"); 1324 } 1325 1326 /* enable the keyboard port and intr. */ 1327 if (!set_controller_command_byte(kbdc, 1328 KBD_KBD_CONTROL_BITS | KBD_TRANSLATION | 1329 KBD_OVERRIDE_KBD_LOCK | mux_mask, 1330 (c & (KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK)) 1331 | KBD_ENABLE_KBD_PORT | KBD_ENABLE_KBD_INT | mux_val)) { 1332 /* 1333 * CONTROLLER ERROR 1334 * This is serious; we are left with the disabled 1335 * keyboard intr. 1336 */ 1337 set_controller_command_byte(kbdc, 1338 KBD_KBD_CONTROL_BITS | KBD_TRANSLATION | 1339 KBD_OVERRIDE_KBD_LOCK | mux_mask, 1340 c); 1341 kbdc_lock(kbdc, FALSE); 1342 kprintf("atkbd: unable to enable the keyboard port and intr.\n"); 1343 return EIO; 1344 } 1345 1346 kbdc_lock(kbdc, FALSE); 1347 return 0; 1348 } 1349 1350 #if 0 1351 1352 static 1353 int 1354 atkbd_setmuxmode(KBDC kbdc, int enable, int *mux_version) 1355 { 1356 int param; 1357 int val; 1358 int i; 1359 1360 kbdc->mux_active = 0; 1361 empty_both_buffers(kbdc, 100); 1362 val = 0xf0; 1363 if ((param = write_controller_w1r1(kbdc, KBDC_AUX_LOOP, val)) != val) { 1364 kprintf("setmuxmode: fail1\n"); 1365 return(-1); 1366 } 1367 val = enable ? 0x56 : 0xf6; 1368 if ((param = write_controller_w1r1(kbdc, KBDC_AUX_LOOP, val)) != val) { 1369 kprintf("setmuxmode: fail2\n"); 1370 return(-1); 1371 } 1372 val = enable ? 0xa4 : 0xa5; 1373 if ((param = write_controller_w1r1(kbdc, KBDC_AUX_LOOP, val)) != val) { 1374 kprintf("setmuxmode: fail3\n"); 1375 return(-1); 1376 } 1377 kprintf("mux version %02x\n", param); 1378 if (param == 0xac) { 1379 kprintf("setmuxmode: fail4\n"); 1380 return(-1); 1381 } 1382 1383 if (enable) { 1384 for (i = 0; i < KBD_NUM_MUX_PORTS; ++i) { 1385 write_controller_command(kbdc, KBDC_MUX_PFX + i); 1386 write_controller_command(kbdc, KBDC_ENABLE_AUX_PORT); 1387 1388 } 1389 } 1390 kbdc->mux_active = 1; 1391 if (mux_version) 1392 *mux_version = param; 1393 return 0; 1394 } 1395 1396 #endif 1397 1398 static int 1399 write_kbd(KBDC kbdc, int command, int data) 1400 { 1401 /* prevent the timeout routine from polling the keyboard */ 1402 if (!kbdc_lock(kbdc, TRUE)) 1403 return EBUSY; 1404 1405 /* disable the keyboard and mouse interrupt */ 1406 crit_enter(); 1407 1408 #if 0 1409 /* 1410 * XXX NOTE: We can't just disable the KBD port any more, even 1411 * temporarily, without blowing up some BIOS emulations 1412 * if not followed by a full reset. 1413 */ 1414 c = get_controller_command_byte(kbdc); 1415 if ((c == -1) || 1416 !set_controller_command_byte(kbdc, 1417 KBD_KBD_CONTROL_BITS, 1418 KBD_DISABLE_KBD_PORT | KBD_DISABLE_KBD_INT)) { 1419 /* CONTROLLER ERROR */ 1420 kbdc_lock(kbdc, FALSE); 1421 crit_exit(); 1422 return EIO; 1423 } 1424 /* 1425 * Now that the keyboard controller is told not to generate 1426 * the keyboard and mouse interrupts, call `splx()' to allow 1427 * the other tty interrupts. The clock interrupt may also occur, 1428 * but the timeout routine (`scrn_timer()') will be blocked 1429 * by the lock flag set via `kbdc_lock()' 1430 */ 1431 crit_exit(); 1432 #endif 1433 1434 if (send_kbd_command_and_data(kbdc, command, data) != KBD_ACK) 1435 send_kbd_command(kbdc, KBDC_ENABLE_KBD); 1436 1437 #if 0 1438 /* restore the interrupts */ 1439 if (!set_controller_command_byte(kbdc, KBD_KBD_CONTROL_BITS, c)) { 1440 /* CONTROLLER ERROR */ 1441 } 1442 #else 1443 crit_exit(); 1444 #endif 1445 kbdc_lock(kbdc, FALSE); 1446 1447 return 0; 1448 } 1449 1450 static int 1451 get_kbd_id(KBDC kbdc, int cmd) 1452 { 1453 int id1, id2; 1454 1455 empty_both_buffers(kbdc, 10); 1456 id1 = id2 = -1; 1457 if (send_kbd_command(kbdc, cmd) != KBD_ACK) 1458 return -1; 1459 1460 DELAY(10000); /* 10 msec delay */ 1461 id1 = read_kbd_data(kbdc); 1462 if (id1 != -1) 1463 id2 = read_kbd_data(kbdc); 1464 1465 if ((id1 == -1) || (id2 == -1)) { 1466 empty_both_buffers(kbdc, 10); 1467 test_controller(kbdc); 1468 test_kbd_port(kbdc); 1469 return -1; 1470 } 1471 return ((id2 << 8) | id1); 1472 } 1473 1474 static int delays[] = { 250, 500, 750, 1000 }; 1475 static int rates[] = { 34, 38, 42, 46, 50, 55, 59, 63, 1476 68, 76, 84, 92, 100, 110, 118, 126, 1477 136, 152, 168, 184, 200, 220, 236, 252, 1478 272, 304, 336, 368, 400, 440, 472, 504 }; 1479 1480 static int 1481 typematic_delay(int i) 1482 { 1483 return delays[(i >> 5) & 3]; 1484 } 1485 1486 static int 1487 typematic_rate(int i) 1488 { 1489 return rates[i & 0x1f]; 1490 } 1491 1492 static int 1493 typematic(int delay, int rate) 1494 { 1495 int value; 1496 int i; 1497 1498 for (i = NELEM(delays) - 1; i > 0; --i) { 1499 if (delay >= delays[i]) 1500 break; 1501 } 1502 value = i << 5; 1503 for (i = NELEM(rates) - 1; i > 0; --i) { 1504 if (rate >= rates[i]) 1505 break; 1506 } 1507 value |= i; 1508 return value; 1509 } 1510