atkbd.c revision 44628
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 * $Id: atkbd.c,v 1.4 1999/01/28 10:55:55 yokota Exp $ 27 */ 28 29#include "atkbd.h" 30#include "opt_kbd.h" 31#include "opt_atkbd.h" 32#include "opt_devfs.h" 33 34#if NATKBD > 0 35 36#include <sys/param.h> 37#include <sys/systm.h> 38#include <sys/kernel.h> 39#include <sys/conf.h> 40#include <sys/proc.h> 41#include <sys/tty.h> 42#include <sys/fcntl.h> 43#include <sys/malloc.h> 44 45#include <dev/kbd/kbdreg.h> 46#include <dev/kbd/atkbdreg.h> 47#include <dev/kbd/atkbdcreg.h> 48 49#ifndef __i386__ 50 51#include <sys/bus.h> 52#include <isa/isareg.h> 53 54extern devclass_t atkbd_devclass; 55 56#define ATKBD_SOFTC(unit) \ 57 ((atkbd_softc_t *)devclass_get_softc(atkbd_devclass, unit)) 58 59#else /* __i386__ */ 60 61#include <i386/isa/isa.h> 62#include <i386/isa/isa_device.h> 63 64extern struct isa_driver atkbddriver; /* XXX: a kludge; see below */ 65 66static atkbd_softc_t *atkbd_softc[NATKBD]; 67 68#define ATKBD_SOFTC(unit) \ 69 (((unit) >= NATKBD) ? NULL : atkbd_softc[(unit)]) 70 71#endif /* __i386__ */ 72 73static timeout_t atkbd_timeout; 74 75#ifdef KBD_INSTALL_CDEV 76 77static d_open_t atkbdopen; 78static d_close_t atkbdclose; 79static d_read_t atkbdread; 80static d_ioctl_t atkbdioctl; 81static d_poll_t atkbdpoll; 82 83static struct cdevsw atkbd_cdevsw = { 84 atkbdopen, atkbdclose, atkbdread, nowrite, 85 atkbdioctl, nostop, nullreset, nodevtotty, 86 atkbdpoll, nommap, NULL, ATKBD_DRIVER_NAME, 87 NULL, -1, 88}; 89 90#endif /* KBD_INSTALL_CDEV */ 91 92#ifdef __i386__ 93 94atkbd_softc_t 95*atkbd_get_softc(int unit) 96{ 97 atkbd_softc_t *sc; 98 99 if (unit >= sizeof(atkbd_softc)/sizeof(atkbd_softc[0])) 100 return NULL; 101 sc = atkbd_softc[unit]; 102 if (sc == NULL) { 103 sc = atkbd_softc[unit] 104 = malloc(sizeof(*sc), M_DEVBUF, M_NOWAIT); 105 if (sc == NULL) 106 return NULL; 107 bzero(sc, sizeof(*sc)); 108 } 109 return sc; 110} 111 112#endif /* __i386__ */ 113 114int 115atkbd_probe_unit(int unit, int port, int irq, int flags) 116{ 117 keyboard_switch_t *sw; 118 int args[2]; 119 int error; 120 121 sw = kbd_get_switch(ATKBD_DRIVER_NAME); 122 if (sw == NULL) 123 return ENXIO; 124 125 args[0] = port; 126 args[1] = irq; 127 error = (*sw->probe)(unit, args, flags); 128 if (error) 129 return error; 130 return 0; 131} 132 133int 134atkbd_attach_unit(int unit, atkbd_softc_t *sc, int port, int irq, int flags) 135{ 136 keyboard_switch_t *sw; 137 int args[2]; 138 int error; 139 140 if (sc->flags & ATKBD_ATTACHED) 141 return 0; 142 143 sw = kbd_get_switch(ATKBD_DRIVER_NAME); 144 if (sw == NULL) 145 return ENXIO; 146 147 /* reset, initialize and enable the device */ 148 args[0] = port; 149 args[1] = irq; 150 sc->kbd = NULL; 151 error = (*sw->probe)(unit, args, flags); 152 if (error) 153 return error; 154 error = (*sw->init)(unit, &sc->kbd, args, flags); 155 if (error) 156 return error; 157 (*sw->enable)(sc->kbd); 158 159#ifdef KBD_INSTALL_CDEV 160 /* attach a virtual keyboard cdev */ 161 error = kbd_attach(makedev(0, ATKBD_MKMINOR(unit)), sc->kbd, 162 &atkbd_cdevsw); 163 if (error) 164 return error; 165#endif 166 167 /* 168 * This is a kludge to compensate for lost keyboard interrupts. 169 * A similar code used to be in syscons. See below. XXX 170 */ 171 atkbd_timeout(sc->kbd); 172 173 if (bootverbose) 174 (*sw->diag)(sc->kbd, bootverbose); 175 176 sc->flags |= ATKBD_ATTACHED; 177 return 0; 178} 179 180static void 181atkbd_timeout(void *arg) 182{ 183 keyboard_t *kbd; 184 int s; 185 186 /* The following comments are extracted from syscons.c (1.287) */ 187 /* 188 * With release 2.1 of the Xaccel server, the keyboard is left 189 * hanging pretty often. Apparently an interrupt from the 190 * keyboard is lost, and I don't know why (yet). 191 * This ugly hack calls scintr if input is ready for the keyboard 192 * and conveniently hides the problem. XXX 193 */ 194 /* 195 * Try removing anything stuck in the keyboard controller; whether 196 * it's a keyboard scan code or mouse data. `scintr()' doesn't 197 * read the mouse data directly, but `kbdio' routines will, as a 198 * side effect. 199 */ 200 s = spltty(); 201 kbd = (keyboard_t *)arg; 202 if ((*kbdsw[kbd->kb_index]->lock)(kbd, TRUE)) { 203 /* 204 * We have seen the lock flag is not set. Let's reset 205 * the flag early, otherwise the LED update routine fails 206 * which may want the lock during the interrupt routine. 207 */ 208 (*kbdsw[kbd->kb_index]->lock)(kbd, FALSE); 209 if ((*kbdsw[kbd->kb_index]->check_char)(kbd)) 210 (*kbdsw[kbd->kb_index]->intr)(kbd, NULL); 211 } 212 splx(s); 213 timeout(atkbd_timeout, arg, hz/10); 214} 215 216/* cdev driver functions */ 217 218#ifdef KBD_INSTALL_CDEV 219 220static int 221atkbdopen(dev_t dev, int flag, int mode, struct proc *p) 222{ 223 atkbd_softc_t *sc; 224 225 sc = ATKBD_SOFTC(ATKBD_UNIT(dev)); 226 if (sc == NULL) 227 return ENXIO; 228 if (mode & (FWRITE | O_CREAT | O_APPEND | O_TRUNC)) 229 return ENODEV; 230 231 /* FIXME: set the initial input mode (K_XLATE?) and lock state? */ 232 return genkbdopen(&sc->gensc, sc->kbd, flag, mode, p); 233} 234 235static int 236atkbdclose(dev_t dev, int flag, int mode, struct proc *p) 237{ 238 atkbd_softc_t *sc; 239 240 sc = ATKBD_SOFTC(ATKBD_UNIT(dev)); 241 return genkbdclose(&sc->gensc, sc->kbd, flag, mode, p); 242} 243 244static int 245atkbdread(dev_t dev, struct uio *uio, int flag) 246{ 247 atkbd_softc_t *sc; 248 249 sc = ATKBD_SOFTC(ATKBD_UNIT(dev)); 250 return genkbdread(&sc->gensc, sc->kbd, uio, flag); 251} 252 253static int 254atkbdioctl(dev_t dev, u_long cmd, caddr_t arg, int flag, struct proc *p) 255{ 256 atkbd_softc_t *sc; 257 258 sc = ATKBD_SOFTC(ATKBD_UNIT(dev)); 259 return genkbdioctl(&sc->gensc, sc->kbd, cmd, arg, flag, p); 260} 261 262static int 263atkbdpoll(dev_t dev, int event, struct proc *p) 264{ 265 atkbd_softc_t *sc; 266 267 sc = ATKBD_SOFTC(ATKBD_UNIT(dev)); 268 return genkbdpoll(&sc->gensc, sc->kbd, event, p); 269} 270 271#endif /* KBD_INSTALL_CDEV */ 272 273/* LOW-LEVEL */ 274 275#include <machine/limits.h> 276#include <machine/console.h> 277#include <machine/clock.h> 278 279#define ATKBD_DEFAULT 0 280 281typedef struct atkbd_state { 282 KBDC kbdc; /* keyboard controller */ 283 /* XXX: don't move this field; pcvt 284 * expects `kbdc' to be the first 285 * field in this structure. */ 286 int ks_mode; /* input mode (K_XLATE,K_RAW,K_CODE) */ 287 int ks_flags; /* flags */ 288#define COMPOSE (1 << 0) 289 int ks_polling; 290 int ks_state; /* shift/lock key state */ 291 int ks_accents; /* accent key index (> 0) */ 292 u_int ks_composed_char; /* composed char code (> 0) */ 293 u_char ks_prefix; /* AT scan code prefix */ 294} atkbd_state_t; 295 296/* keyboard driver declaration */ 297static int atkbd_configure(int flags); 298static kbd_probe_t atkbd_probe; 299static kbd_init_t atkbd_init; 300static kbd_term_t atkbd_term; 301static kbd_intr_t atkbd_intr; 302static kbd_test_if_t atkbd_test_if; 303static kbd_enable_t atkbd_enable; 304static kbd_disable_t atkbd_disable; 305static kbd_read_t atkbd_read; 306static kbd_check_t atkbd_check; 307static kbd_read_char_t atkbd_read_char; 308static kbd_check_char_t atkbd_check_char; 309static kbd_ioctl_t atkbd_ioctl; 310static kbd_lock_t atkbd_lock; 311static kbd_clear_state_t atkbd_clear_state; 312static kbd_get_state_t atkbd_get_state; 313static kbd_set_state_t atkbd_set_state; 314static kbd_poll_mode_t atkbd_poll; 315 316keyboard_switch_t atkbdsw = { 317 atkbd_probe, 318 atkbd_init, 319 atkbd_term, 320 atkbd_intr, 321 atkbd_test_if, 322 atkbd_enable, 323 atkbd_disable, 324 atkbd_read, 325 atkbd_check, 326 atkbd_read_char, 327 atkbd_check_char, 328 atkbd_ioctl, 329 atkbd_lock, 330 atkbd_clear_state, 331 atkbd_get_state, 332 atkbd_set_state, 333 genkbd_get_fkeystr, 334 atkbd_poll, 335 genkbd_diag, 336}; 337 338KEYBOARD_DRIVER(atkbd, atkbdsw, atkbd_configure); 339 340/* local functions */ 341static int setup_kbd_port(KBDC kbdc, int port, int intr); 342static int get_kbd_echo(KBDC kbdc); 343static int probe_keyboard(KBDC kbdc, int flags); 344static int init_keyboard(KBDC kbdc, int *type, int flags); 345static int write_kbd(KBDC kbdc, int command, int data); 346static int get_kbd_id(KBDC kbdc); 347static int typematic(int delay, int rate); 348 349/* local variables */ 350 351/* the initial key map, accent map and fkey strings */ 352#ifdef ATKBD_DFLT_KEYMAP 353#define KBD_DFLT_KEYMAP 354#include "atkbdmap.h" 355#endif 356#include <dev/kbd/kbdtables.h> 357 358/* structures for the default keyboard */ 359static keyboard_t default_kbd; 360static atkbd_state_t default_kbd_state; 361static keymap_t default_keymap; 362static accentmap_t default_accentmap; 363static fkeytab_t default_fkeytab[NUM_FKEYS]; 364 365/* 366 * The back door to the keyboard driver! 367 * This function is called by the console driver, via the kbdio module, 368 * to tickle keyboard drivers when the low-level console is being initialized. 369 * Almost nothing in the kernel has been initialied yet. Try to probe 370 * keyboards if possible. 371 * NOTE: because of the way the low-level conole is initialized, this routine 372 * may be called more than once!! 373 */ 374static int 375atkbd_configure(int flags) 376{ 377 keyboard_t *kbd; 378 int arg[2]; 379#ifdef __i386__ 380 struct isa_device *dev; 381 int i; 382 383 /* XXX: a kludge to obtain the device configuration flags */ 384 dev = find_isadev(isa_devtab_tty, &atkbddriver, 0); 385 if (dev != NULL) { 386 flags |= dev->id_flags; 387 /* if the driver is disabled, unregister the keyboard if any */ 388 if (!dev->id_enabled) { 389 i = kbd_find_keyboard(ATKBD_DRIVER_NAME, ATKBD_DEFAULT); 390 if (i >= 0) { 391 kbd = kbd_get_keyboard(i); 392 kbd_unregister(kbd); 393 kbd->kb_flags &= ~KB_REGISTERED; 394 return 0; 395 } 396 } 397 } 398#endif 399 400 /* probe the keyboard controller */ 401 atkbdc_configure(); 402 403 /* probe the default keyboard */ 404 arg[0] = -1; 405 arg[1] = -1; 406 kbd = NULL; 407 if (atkbd_probe(ATKBD_DEFAULT, arg, flags)) 408 return 0; 409 if (atkbd_init(ATKBD_DEFAULT, &kbd, arg, flags)) 410 return 0; 411 412 /* return the number of found keyboards */ 413 return 1; 414} 415 416/* low-level functions */ 417 418/* detect a keyboard */ 419static int 420atkbd_probe(int unit, void *arg, int flags) 421{ 422 KBDC kbdc; 423 int *data = (int *)arg; 424 425 /* XXX */ 426 if (unit == ATKBD_DEFAULT) { 427 if (KBD_IS_PROBED(&default_kbd)) 428 return 0; 429 } 430 431 kbdc = kbdc_open(data[0]); 432 if (kbdc == NULL) 433 return ENXIO; 434 if (probe_keyboard(kbdc, flags)) { 435 if (flags & KB_CONF_FAIL_IF_NO_KBD) 436 return ENXIO; 437 } 438 return 0; 439} 440 441/* reset and initialize the device */ 442static int 443atkbd_init(int unit, keyboard_t **kbdp, void *arg, int flags) 444{ 445 keyboard_t *kbd; 446 atkbd_state_t *state; 447 keymap_t *keymap; 448 accentmap_t *accmap; 449 fkeytab_t *fkeymap; 450 int fkeymap_size; 451 int *data = (int *)arg; 452 453 /* XXX */ 454 if (unit == ATKBD_DEFAULT) { 455 *kbdp = kbd = &default_kbd; 456 if (KBD_IS_INITIALIZED(kbd) && KBD_IS_CONFIGURED(kbd)) 457 return 0; 458 state = &default_kbd_state; 459 keymap = &default_keymap; 460 accmap = &default_accentmap; 461 fkeymap = default_fkeytab; 462 fkeymap_size = 463 sizeof(default_fkeytab)/sizeof(default_fkeytab[0]); 464 } else if (*kbdp == NULL) { 465 *kbdp = kbd = malloc(sizeof(*kbd), M_DEVBUF, M_NOWAIT); 466 if (kbd == NULL) 467 return ENOMEM; 468 bzero(kbd, sizeof(*kbd)); 469 state = malloc(sizeof(*state), M_DEVBUF, M_NOWAIT); 470 keymap = malloc(sizeof(key_map), M_DEVBUF, M_NOWAIT); 471 accmap = malloc(sizeof(accent_map), M_DEVBUF, M_NOWAIT); 472 fkeymap = malloc(sizeof(fkey_tab), M_DEVBUF, M_NOWAIT); 473 fkeymap_size = sizeof(fkey_tab)/sizeof(fkey_tab[0]); 474 if ((state == NULL) || (keymap == NULL) || (accmap == NULL) 475 || (fkeymap == NULL)) { 476 if (state != NULL) 477 free(state, M_DEVBUF); 478 if (keymap != NULL) 479 free(keymap, M_DEVBUF); 480 if (accmap != NULL) 481 free(accmap, M_DEVBUF); 482 if (fkeymap != NULL) 483 free(fkeymap, M_DEVBUF); 484 free(kbd, M_DEVBUF); 485 return ENOMEM; 486 } 487 bzero(state, sizeof(*state)); 488 } else if (KBD_IS_INITIALIZED(*kbdp) && KBD_IS_CONFIGURED(*kbdp)) { 489 return 0; 490 } else { 491 kbd = *kbdp; 492 state = (atkbd_state_t *)kbd->kb_data; 493 bzero(state, sizeof(*state)); 494 keymap = kbd->kb_keymap; 495 accmap = kbd->kb_accentmap; 496 fkeymap = kbd->kb_fkeytab; 497 fkeymap_size = kbd->kb_fkeytab_size; 498 } 499 500 if (!KBD_IS_PROBED(kbd)) { 501 state->kbdc = kbdc_open(data[0]); 502 if (state->kbdc == NULL) 503 return ENXIO; 504 kbd_init_struct(kbd, ATKBD_DRIVER_NAME, KB_OTHER, unit, flags, 505 data[0], IO_KBDSIZE); 506 bcopy(&key_map, keymap, sizeof(key_map)); 507 bcopy(&accent_map, accmap, sizeof(accent_map)); 508 bcopy(fkey_tab, fkeymap, 509 imin(fkeymap_size*sizeof(fkeymap[0]), sizeof(fkey_tab))); 510 kbd_set_maps(kbd, keymap, accmap, fkeymap, fkeymap_size); 511 kbd->kb_data = (void *)state; 512 513 if (probe_keyboard(state->kbdc, flags)) { /* shouldn't happen */ 514 if (flags & KB_CONF_FAIL_IF_NO_KBD) 515 return ENXIO; 516 } else { 517 KBD_FOUND_DEVICE(kbd); 518 } 519 atkbd_clear_state(kbd); 520 state->ks_mode = K_XLATE; 521 /* 522 * FIXME: set the initial value for lock keys in ks_state 523 * according to the BIOS data? 524 */ 525 KBD_PROBE_DONE(kbd); 526 } 527 if (!KBD_IS_INITIALIZED(kbd) && !(flags & KB_CONF_PROBE_ONLY)) { 528 if (KBD_HAS_DEVICE(kbd) 529 && init_keyboard(state->kbdc, &kbd->kb_type, kbd->kb_config) 530 && (kbd->kb_config & KB_CONF_FAIL_IF_NO_KBD)) 531 return ENXIO; 532 atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state); 533 KBD_INIT_DONE(kbd); 534 } 535 if (!KBD_IS_CONFIGURED(kbd)) { 536 if (kbd_register(kbd) < 0) 537 return ENXIO; 538 KBD_CONFIG_DONE(kbd); 539 } 540 541 return 0; 542} 543 544/* finish using this keyboard */ 545static int 546atkbd_term(keyboard_t *kbd) 547{ 548 kbd_unregister(kbd); 549 return 0; 550} 551 552/* keyboard interrupt routine */ 553static int 554atkbd_intr(keyboard_t *kbd, void *arg) 555{ 556 atkbd_state_t *state; 557 int c; 558 559 if (KBD_IS_ACTIVE(kbd) && KBD_IS_BUSY(kbd)) { 560 /* let the callback function to process the input */ 561 (*kbd->kb_callback.kc_func)(kbd, KBDIO_KEYINPUT, 562 kbd->kb_callback.kc_arg); 563 } else { 564 /* read and discard the input; no one is waiting for input */ 565 do { 566 c = atkbd_read_char(kbd, FALSE); 567 } while (c != NOKEY); 568 569 if (!KBD_HAS_DEVICE(kbd)) { 570 /* 571 * The keyboard was not detected before; 572 * it must have been reconnected! 573 */ 574 state = (atkbd_state_t *)kbd->kb_data; 575 init_keyboard(state->kbdc, &kbd->kb_type, 576 kbd->kb_config); 577 atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state); 578 KBD_FOUND_DEVICE(kbd); 579 } 580 } 581 return 0; 582} 583 584/* test the interface to the device */ 585static int 586atkbd_test_if(keyboard_t *kbd) 587{ 588 int error; 589 int s; 590 591 error = 0; 592 empty_both_buffers(((atkbd_state_t *)kbd->kb_data)->kbdc, 10); 593 s = spltty(); 594 if (!test_controller(((atkbd_state_t *)kbd->kb_data)->kbdc)) 595 error = EIO; 596 else if (test_kbd_port(((atkbd_state_t *)kbd->kb_data)->kbdc) != 0) 597 error = EIO; 598 splx(s); 599 600 return error; 601} 602 603/* 604 * Enable the access to the device; until this function is called, 605 * the client cannot read from the keyboard. 606 */ 607static int 608atkbd_enable(keyboard_t *kbd) 609{ 610 int s; 611 612 s = spltty(); 613 KBD_ACTIVATE(kbd); 614 splx(s); 615 return 0; 616} 617 618/* disallow the access to the device */ 619static int 620atkbd_disable(keyboard_t *kbd) 621{ 622 int s; 623 624 s = spltty(); 625 KBD_DEACTIVATE(kbd); 626 splx(s); 627 return 0; 628} 629 630/* read one byte from the keyboard if it's allowed */ 631static int 632atkbd_read(keyboard_t *kbd, int wait) 633{ 634 int c; 635 636 if (wait) 637 c = read_kbd_data(((atkbd_state_t *)kbd->kb_data)->kbdc); 638 else 639 c = read_kbd_data_no_wait(((atkbd_state_t *)kbd->kb_data)->kbdc); 640 return (KBD_IS_ACTIVE(kbd) ? c : -1); 641} 642 643/* check if data is waiting */ 644static int 645atkbd_check(keyboard_t *kbd) 646{ 647 if (!KBD_IS_ACTIVE(kbd)) 648 return FALSE; 649 return kbdc_data_ready(((atkbd_state_t *)kbd->kb_data)->kbdc); 650} 651 652/* read char from the keyboard */ 653static u_int 654atkbd_read_char(keyboard_t *kbd, int wait) 655{ 656 atkbd_state_t *state; 657 u_int action; 658 int scancode; 659 int keycode; 660 661 state = (atkbd_state_t *)kbd->kb_data; 662next_code: 663 /* do we have a composed char to return? */ 664 if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0)) { 665 action = state->ks_composed_char; 666 state->ks_composed_char = 0; 667 if (action > UCHAR_MAX) 668 return ERRKEY; 669 return action; 670 } 671 672 /* see if there is something in the keyboard port */ 673 if (wait) { 674 do { 675 scancode = read_kbd_data(state->kbdc); 676 } while (scancode == -1); 677 } else { 678 scancode = read_kbd_data_no_wait(state->kbdc); 679 if (scancode == -1) 680 return NOKEY; 681 } 682 683 /* return the byte as is for the K_RAW mode */ 684 if (state->ks_mode == K_RAW) 685 return scancode; 686 687 /* translate the scan code into a keycode */ 688 keycode = scancode & 0x7F; 689 switch (state->ks_prefix) { 690 case 0x00: /* normal scancode */ 691 switch(scancode) { 692 case 0xB8: /* left alt (compose key) released */ 693 if (state->ks_flags & COMPOSE) { 694 state->ks_flags &= ~COMPOSE; 695 if (state->ks_composed_char > UCHAR_MAX) 696 state->ks_composed_char = 0; 697 } 698 break; 699 case 0x38: /* left alt (compose key) pressed */ 700 if (!(state->ks_flags & COMPOSE)) { 701 state->ks_flags |= COMPOSE; 702 state->ks_composed_char = 0; 703 } 704 break; 705 case 0xE0: 706 case 0xE1: 707 state->ks_prefix = scancode; 708 goto next_code; 709 } 710 break; 711 case 0xE0: /* 0xE0 prefix */ 712 state->ks_prefix = 0; 713 switch (keycode) { 714 case 0x1C: /* right enter key */ 715 keycode = 0x59; 716 break; 717 case 0x1D: /* right ctrl key */ 718 keycode = 0x5A; 719 break; 720 case 0x35: /* keypad divide key */ 721 keycode = 0x5B; 722 break; 723 case 0x37: /* print scrn key */ 724 keycode = 0x5C; 725 break; 726 case 0x38: /* right alt key (alt gr) */ 727 keycode = 0x5D; 728 break; 729 case 0x46: /* ctrl-pause/break on AT 101 (see below) */ 730 keycode = 0x68; 731 break; 732 case 0x47: /* grey home key */ 733 keycode = 0x5E; 734 break; 735 case 0x48: /* grey up arrow key */ 736 keycode = 0x5F; 737 break; 738 case 0x49: /* grey page up key */ 739 keycode = 0x60; 740 break; 741 case 0x4B: /* grey left arrow key */ 742 keycode = 0x61; 743 break; 744 case 0x4D: /* grey right arrow key */ 745 keycode = 0x62; 746 break; 747 case 0x4F: /* grey end key */ 748 keycode = 0x63; 749 break; 750 case 0x50: /* grey down arrow key */ 751 keycode = 0x64; 752 break; 753 case 0x51: /* grey page down key */ 754 keycode = 0x65; 755 break; 756 case 0x52: /* grey insert key */ 757 keycode = 0x66; 758 break; 759 case 0x53: /* grey delete key */ 760 keycode = 0x67; 761 break; 762 /* the following 3 are only used on the MS "Natural" keyboard */ 763 case 0x5b: /* left Window key */ 764 keycode = 0x69; 765 break; 766 case 0x5c: /* right Window key */ 767 keycode = 0x6a; 768 break; 769 case 0x5d: /* menu key */ 770 keycode = 0x6b; 771 break; 772 default: /* ignore everything else */ 773 goto next_code; 774 } 775 break; 776 case 0xE1: /* 0xE1 prefix */ 777 /* 778 * The pause/break key on the 101 keyboard produces: 779 * E1-1D-45 E1-9D-C5 780 * Ctrl-pause/break produces: 781 * E0-46 E0-C6 (See above.) 782 */ 783 state->ks_prefix = 0; 784 if (keycode == 0x1D) 785 state->ks_prefix = 0x1D; 786 goto next_code; 787 /* NOT REACHED */ 788 case 0x1D: /* pause / break */ 789 state->ks_prefix = 0; 790 if (keycode != 0x45) 791 goto next_code; 792 keycode = 0x68; 793 break; 794 } 795 796 if (kbd->kb_type == KB_84) { 797 switch (keycode) { 798 case 0x37: /* *(numpad)/print screen */ 799 if (state->ks_flags & SHIFTS) 800 keycode = 0x5c; /* print screen */ 801 break; 802 case 0x45: /* num lock/pause */ 803 if (state->ks_flags & CTLS) 804 keycode = 0x68; /* pause */ 805 break; 806 case 0x46: /* scroll lock/break */ 807 if (state->ks_flags & CTLS) 808 keycode = 0x6c; /* break */ 809 break; 810 } 811 } else if (kbd->kb_type == KB_101) { 812 switch (keycode) { 813 case 0x5c: /* print screen */ 814 if (state->ks_flags & ALTS) 815 keycode = 0x54; /* sysrq */ 816 break; 817 case 0x68: /* pause/break */ 818 if (state->ks_flags & CTLS) 819 keycode = 0x6c; /* break */ 820 break; 821 } 822 } 823 824 /* return the key code in the K_CODE mode */ 825 if (state->ks_mode == K_CODE) 826 return (keycode | (scancode & 0x80)); 827 828 /* compose a character code */ 829 if (state->ks_flags & COMPOSE) { 830 switch (scancode) { 831 /* key pressed, process it */ 832 case 0x47: case 0x48: case 0x49: /* keypad 7,8,9 */ 833 state->ks_composed_char *= 10; 834 state->ks_composed_char += scancode - 0x40; 835 if (state->ks_composed_char > UCHAR_MAX) 836 return ERRKEY; 837 goto next_code; 838 case 0x4B: case 0x4C: case 0x4D: /* keypad 4,5,6 */ 839 state->ks_composed_char *= 10; 840 state->ks_composed_char += scancode - 0x47; 841 if (state->ks_composed_char > UCHAR_MAX) 842 return ERRKEY; 843 goto next_code; 844 case 0x4F: case 0x50: case 0x51: /* keypad 1,2,3 */ 845 state->ks_composed_char *= 10; 846 state->ks_composed_char += scancode - 0x4E; 847 if (state->ks_composed_char > UCHAR_MAX) 848 return ERRKEY; 849 goto next_code; 850 case 0x52: /* keypad 0 */ 851 state->ks_composed_char *= 10; 852 if (state->ks_composed_char > UCHAR_MAX) 853 return ERRKEY; 854 goto next_code; 855 856 /* key released, no interest here */ 857 case 0xC7: case 0xC8: case 0xC9: /* keypad 7,8,9 */ 858 case 0xCB: case 0xCC: case 0xCD: /* keypad 4,5,6 */ 859 case 0xCF: case 0xD0: case 0xD1: /* keypad 1,2,3 */ 860 case 0xD2: /* keypad 0 */ 861 goto next_code; 862 863 case 0x38: /* left alt key */ 864 break; 865 866 default: 867 if (state->ks_composed_char > 0) { 868 state->ks_flags &= ~COMPOSE; 869 state->ks_composed_char = 0; 870 return ERRKEY; 871 } 872 break; 873 } 874 } 875 876 /* keycode to key action */ 877 action = genkbd_keyaction(kbd, keycode, scancode & 0x80, 878 &state->ks_state, &state->ks_accents); 879 if (action == NOKEY) 880 goto next_code; 881 else 882 return action; 883} 884 885/* check if char is waiting */ 886static int 887atkbd_check_char(keyboard_t *kbd) 888{ 889 atkbd_state_t *state; 890 891 if (!KBD_IS_ACTIVE(kbd)) 892 return FALSE; 893 state = (atkbd_state_t *)kbd->kb_data; 894 if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0)) 895 return TRUE; 896 return kbdc_data_ready(state->kbdc); 897} 898 899/* some useful control functions */ 900static int 901atkbd_ioctl(keyboard_t *kbd, u_long cmd, caddr_t arg) 902{ 903 /* trasnlate LED_XXX bits into the device specific bits */ 904 static u_char ledmap[8] = { 905 0, 4, 2, 6, 1, 5, 3, 7, 906 }; 907 atkbd_state_t *state = kbd->kb_data; 908 int error; 909 int s; 910 int i; 911 912 s = spltty(); 913 switch (cmd) { 914 915 case KDGKBMODE: /* get keyboard mode */ 916 *(int *)arg = state->ks_mode; 917 break; 918 case KDSKBMODE: /* set keyboard mode */ 919 switch (*(int *)arg) { 920 case K_XLATE: 921 if (state->ks_mode != K_XLATE) { 922 /* make lock key state and LED state match */ 923 state->ks_state &= ~LOCK_MASK; 924 state->ks_state |= KBD_LED_VAL(kbd); 925 } 926 /* FALL THROUGH */ 927 case K_RAW: 928 case K_CODE: 929 if (state->ks_mode != *(int *)arg) { 930 atkbd_clear_state(kbd); 931 state->ks_mode = *(int *)arg; 932 } 933 break; 934 default: 935 splx(s); 936 return EINVAL; 937 } 938 break; 939 940 case KDGETLED: /* get keyboard LED */ 941 *(int *)arg = KBD_LED_VAL(kbd); 942 break; 943 case KDSETLED: /* set keyboard LED */ 944 /* NOTE: lock key state in ks_state won't be changed */ 945 if (*(int *)arg & ~LOCK_MASK) { 946 splx(s); 947 return EINVAL; 948 } 949 i = *(int *)arg; 950 /* replace CAPS LED with ALTGR LED for ALTGR keyboards */ 951 if (kbd->kb_keymap->n_keys > ALTGR_OFFSET) { 952 if (i & ALKED) 953 i |= CLKED; 954 else 955 i &= ~CLKED; 956 } 957 if (KBD_HAS_DEVICE(kbd)) { 958 error = write_kbd(state->kbdc, KBDC_SET_LEDS, 959 ledmap[i & LED_MASK]); 960 if (error) { 961 splx(s); 962 return error; 963 } 964 } 965 KBD_LED_VAL(kbd) = *(int *)arg; 966 break; 967 968 case KDGKBSTATE: /* get lock key state */ 969 *(int *)arg = state->ks_state & LOCK_MASK; 970 break; 971 case KDSKBSTATE: /* set lock key state */ 972 if (*(int *)arg & ~LOCK_MASK) { 973 splx(s); 974 return EINVAL; 975 } 976 state->ks_state &= ~LOCK_MASK; 977 state->ks_state |= *(int *)arg; 978 splx(s); 979 /* set LEDs and quit */ 980 return atkbd_ioctl(kbd, KDSETLED, arg); 981 982 case KDSETREPEAT: /* set keyboard repeat rate (new interface) */ 983 splx(s); 984 if (!KBD_HAS_DEVICE(kbd)) 985 return 0; 986 i = typematic(((int *)arg)[0], ((int *)arg)[1]); 987 return write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, i); 988 989 case KDSETRAD: /* set keyboard repeat rate (old interface) */ 990 splx(s); 991 if (!KBD_HAS_DEVICE(kbd)) 992 return 0; 993 return write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, *(int *)arg); 994 995 case PIO_KEYMAP: /* set keyboard translation table */ 996 case PIO_KEYMAPENT: /* set keyboard translation table entry */ 997 case PIO_DEADKEYMAP: /* set accent key translation table */ 998 state->ks_accents = 0; 999 /* FALL THROUGH */ 1000 default: 1001 splx(s); 1002 return genkbd_commonioctl(kbd, cmd, arg); 1003 } 1004 1005 splx(s); 1006 return 0; 1007} 1008 1009/* lock the access to the keyboard */ 1010static int 1011atkbd_lock(keyboard_t *kbd, int lock) 1012{ 1013 return kbdc_lock(((atkbd_state_t *)kbd->kb_data)->kbdc, lock); 1014} 1015 1016/* clear the internal state of the keyboard */ 1017static void 1018atkbd_clear_state(keyboard_t *kbd) 1019{ 1020 atkbd_state_t *state; 1021 1022 state = (atkbd_state_t *)kbd->kb_data; 1023 state->ks_flags = 0; 1024 state->ks_polling = 0; 1025 state->ks_state &= LOCK_MASK; /* preserve locking key state */ 1026 state->ks_accents = 0; 1027 state->ks_composed_char = 0; 1028#if 0 1029 state->ks_prefix = 0; /* XXX */ 1030#endif 1031} 1032 1033/* save the internal state */ 1034static int 1035atkbd_get_state(keyboard_t *kbd, void *buf, size_t len) 1036{ 1037 if (len == 0) 1038 return sizeof(atkbd_state_t); 1039 if (len < sizeof(atkbd_state_t)) 1040 return -1; 1041 bcopy(kbd->kb_data, buf, sizeof(atkbd_state_t)); 1042 return 0; 1043} 1044 1045/* set the internal state */ 1046static int 1047atkbd_set_state(keyboard_t *kbd, void *buf, size_t len) 1048{ 1049 if (len < sizeof(atkbd_state_t)) 1050 return ENOMEM; 1051 if (((atkbd_state_t *)kbd->kb_data)->kbdc 1052 != ((atkbd_state_t *)buf)->kbdc) 1053 return ENOMEM; 1054 bcopy(buf, kbd->kb_data, sizeof(atkbd_state_t)); 1055 return 0; 1056} 1057 1058static int 1059atkbd_poll(keyboard_t *kbd, int on) 1060{ 1061 atkbd_state_t *state; 1062 int s; 1063 1064 state = (atkbd_state_t *)kbd->kb_data; 1065 s = spltty(); 1066 if (on) 1067 ++state->ks_polling; 1068 else 1069 --state->ks_polling; 1070 splx(s); 1071 return 0; 1072} 1073 1074/* local functions */ 1075 1076static int 1077setup_kbd_port(KBDC kbdc, int port, int intr) 1078{ 1079 if (!set_controller_command_byte(kbdc, 1080 KBD_KBD_CONTROL_BITS, 1081 ((port) ? KBD_ENABLE_KBD_PORT : KBD_DISABLE_KBD_PORT) 1082 | ((intr) ? KBD_ENABLE_KBD_INT : KBD_DISABLE_KBD_INT))) 1083 return 1; 1084 return 0; 1085} 1086 1087static int 1088get_kbd_echo(KBDC kbdc) 1089{ 1090 /* enable the keyboard port, but disable the keyboard intr. */ 1091 if (setup_kbd_port(kbdc, TRUE, FALSE)) 1092 /* CONTROLLER ERROR: there is very little we can do... */ 1093 return ENXIO; 1094 1095 /* see if something is present */ 1096 write_kbd_command(kbdc, KBDC_ECHO); 1097 if (read_kbd_data(kbdc) != KBD_ECHO) { 1098 empty_both_buffers(kbdc, 10); 1099 test_controller(kbdc); 1100 test_kbd_port(kbdc); 1101 return ENXIO; 1102 } 1103 1104 /* enable the keyboard port and intr. */ 1105 if (setup_kbd_port(kbdc, TRUE, TRUE)) { 1106 /* 1107 * CONTROLLER ERROR 1108 * This is serious; the keyboard intr is left disabled! 1109 */ 1110 return ENXIO; 1111 } 1112 1113 return 0; 1114} 1115 1116static int 1117probe_keyboard(KBDC kbdc, int flags) 1118{ 1119 /* 1120 * Don't try to print anything in this function. The low-level 1121 * console may not have been initialized yet... 1122 */ 1123 int err; 1124 int c; 1125 int m; 1126 1127 if (!kbdc_lock(kbdc, TRUE)) { 1128 /* driver error? */ 1129 return ENXIO; 1130 } 1131 1132 /* flush any noise in the buffer */ 1133 empty_both_buffers(kbdc, 10); 1134 1135 /* save the current keyboard controller command byte */ 1136 m = kbdc_get_device_mask(kbdc) & ~KBD_KBD_CONTROL_BITS; 1137 c = get_controller_command_byte(kbdc); 1138 if (c == -1) { 1139 /* CONTROLLER ERROR */ 1140 kbdc_set_device_mask(kbdc, m); 1141 kbdc_lock(kbdc, FALSE); 1142 return ENXIO; 1143 } 1144 1145 /* 1146 * The keyboard may have been screwed up by the boot block. 1147 * We may just be able to recover from error by testing the controller 1148 * and the keyboard port. The controller command byte needs to be 1149 * saved before this recovery operation, as some controllers seem 1150 * to set the command byte to particular values. 1151 */ 1152 test_controller(kbdc); 1153 test_kbd_port(kbdc); 1154 1155 err = get_kbd_echo(kbdc); 1156 if (err == 0) { 1157 kbdc_set_device_mask(kbdc, m | KBD_KBD_CONTROL_BITS); 1158 } else { 1159 if (c != -1) 1160 /* try to restore the command byte as before */ 1161 set_controller_command_byte(kbdc, 0xff, c); 1162 kbdc_set_device_mask(kbdc, m); 1163 } 1164 1165 kbdc_lock(kbdc, FALSE); 1166 return err; 1167} 1168 1169static int 1170init_keyboard(KBDC kbdc, int *type, int flags) 1171{ 1172 int codeset; 1173 int id; 1174 int c; 1175 1176 if (!kbdc_lock(kbdc, TRUE)) { 1177 /* driver error? */ 1178 return EIO; 1179 } 1180 1181 /* save the current controller command byte */ 1182 empty_both_buffers(kbdc, 10); 1183 c = get_controller_command_byte(kbdc); 1184 if (c == -1) { 1185 /* CONTROLLER ERROR */ 1186 kbdc_lock(kbdc, FALSE); 1187 printf("atkbd: unable to get the current command byte value.\n"); 1188 return EIO; 1189 } 1190 if (bootverbose) 1191 printf("atkbd: the current kbd controller command byte %04x\n", 1192 c); 1193#if 0 1194 /* override the keyboard lock switch */ 1195 c |= KBD_OVERRIDE_KBD_LOCK; 1196#endif 1197 1198 /* enable the keyboard port, but disable the keyboard intr. */ 1199 if (setup_kbd_port(kbdc, TRUE, FALSE)) { 1200 /* CONTROLLER ERROR: there is very little we can do... */ 1201 printf("atkbd: unable to set the command byte.\n"); 1202 kbdc_lock(kbdc, FALSE); 1203 return EIO; 1204 } 1205 1206 /* 1207 * Check if we have an XT keyboard before we attempt to reset it. 1208 * The procedure assumes that the keyboard and the controller have 1209 * been set up properly by BIOS and have not been messed up 1210 * during the boot process. 1211 */ 1212 codeset = -1; 1213 if (flags & KB_CONF_ALT_SCANCODESET) 1214 /* the user says there is a XT keyboard */ 1215 codeset = 1; 1216#ifdef KBD_DETECT_XT_KEYBOARD 1217 else if ((c & KBD_TRANSLATION) == 0) { 1218 /* SET_SCANCODE_SET is not always supported; ignore error */ 1219 if (send_kbd_command_and_data(kbdc, KBDC_SET_SCANCODE_SET, 0) 1220 == KBD_ACK) 1221 codeset = read_kbd_data(kbdc); 1222 } 1223 if (bootverbose) 1224 printf("atkbd: scancode set %d\n", codeset); 1225#endif /* KBD_DETECT_XT_KEYBOARD */ 1226 1227 *type = KB_OTHER; 1228 id = get_kbd_id(kbdc); 1229 switch(id) { 1230 case 0x41ab: 1231 case 0x83ab: 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 printf("atkbd: keyboard ID 0x%x (%d)\n", id, *type); 1242 1243 /* reset keyboard hardware */ 1244 if (!(flags & KB_CONF_NO_RESET) && !reset_kbd(kbdc)) { 1245 /* 1246 * KEYBOARD ERROR 1247 * Keyboard reset may fail either because the keyboard 1248 * doen't exist, or because the keyboard doesn't pass 1249 * the self-test, or the keyboard controller on the 1250 * motherboard and the keyboard somehow fail to shake hands. 1251 * It is just possible, particularly in the last case, 1252 * that the keyoard controller may be left in a hung state. 1253 * test_controller() and test_kbd_port() appear to bring 1254 * the keyboard controller back (I don't know why and how, 1255 * though.) 1256 */ 1257 empty_both_buffers(kbdc, 10); 1258 test_controller(kbdc); 1259 test_kbd_port(kbdc); 1260 /* 1261 * We could disable the keyboard port and interrupt... but, 1262 * the keyboard may still exist (see above). 1263 */ 1264 set_controller_command_byte(kbdc, 0xff, c); 1265 kbdc_lock(kbdc, FALSE); 1266 if (bootverbose) 1267 printf("atkbd: failed to reset the keyboard.\n"); 1268 return EIO; 1269 } 1270 1271 /* 1272 * Allow us to set the XT_KEYBD flag in UserConfig so that keyboards 1273 * such as those on the IBM ThinkPad laptop computers can be used 1274 * with the standard console driver. 1275 */ 1276 if (codeset == 1) { 1277 if (send_kbd_command_and_data(kbdc, 1278 KBDC_SET_SCANCODE_SET, codeset) == KBD_ACK) { 1279 /* XT kbd doesn't need scan code translation */ 1280 c &= ~KBD_TRANSLATION; 1281 } else { 1282 /* 1283 * KEYBOARD ERROR 1284 * The XT kbd isn't usable unless the proper scan 1285 * code set is selected. 1286 */ 1287 set_controller_command_byte(kbdc, 0xff, c); 1288 kbdc_lock(kbdc, FALSE); 1289 printf("atkbd: unable to set the XT keyboard mode.\n"); 1290 return EIO; 1291 } 1292 } 1293 1294#ifdef __alpha__ 1295 if (send_kbd_command_and_data( 1296 kbdc, KBDC_SET_SCANCODE_SET, 2) != KBD_ACK) { 1297 printf("atkbd: can't set translation.\n"); 1298 1299 } 1300 c |= KBD_TRANSLATION; 1301#endif 1302 1303 /* enable the keyboard port and intr. */ 1304 if (!set_controller_command_byte(kbdc, 1305 KBD_KBD_CONTROL_BITS | KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK, 1306 (c & (KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK)) 1307 | KBD_ENABLE_KBD_PORT | KBD_ENABLE_KBD_INT)) { 1308 /* 1309 * CONTROLLER ERROR 1310 * This is serious; we are left with the disabled 1311 * keyboard intr. 1312 */ 1313 set_controller_command_byte(kbdc, 0xff, c); 1314 kbdc_lock(kbdc, FALSE); 1315 printf("atkbd: unable to enable the keyboard port and intr.\n"); 1316 return EIO; 1317 } 1318 1319 kbdc_lock(kbdc, FALSE); 1320 return 0; 1321} 1322 1323static int 1324write_kbd(KBDC kbdc, int command, int data) 1325{ 1326 int s; 1327 1328 /* prevent the timeout routine from polling the keyboard */ 1329 if (!kbdc_lock(kbdc, TRUE)) 1330 return EBUSY; 1331 1332 /* disable the keyboard and mouse interrupt */ 1333 s = spltty(); 1334#if 0 1335 c = get_controller_command_byte(kbdc); 1336 if ((c == -1) 1337 || !set_controller_command_byte(kbdc, 1338 kbdc_get_device_mask(kbdc), 1339 KBD_DISABLE_KBD_PORT | KBD_DISABLE_KBD_INT 1340 | KBD_DISABLE_AUX_PORT | KBD_DISABLE_AUX_INT)) { 1341 /* CONTROLLER ERROR */ 1342 kbdc_lock(kbdc, FALSE); 1343 splx(s); 1344 return EIO; 1345 } 1346 /* 1347 * Now that the keyboard controller is told not to generate 1348 * the keyboard and mouse interrupts, call `splx()' to allow 1349 * the other tty interrupts. The clock interrupt may also occur, 1350 * but the timeout routine (`scrn_timer()') will be blocked 1351 * by the lock flag set via `kbdc_lock()' 1352 */ 1353 splx(s); 1354#endif 1355 1356 if (send_kbd_command_and_data(kbdc, command, data) != KBD_ACK) 1357 send_kbd_command(kbdc, KBDC_ENABLE_KBD); 1358 1359#if 0 1360 /* restore the interrupts */ 1361 if (!set_controller_command_byte(kbdc, 1362 kbdc_get_device_mask(kbdc), 1363 c & (KBD_KBD_CONTROL_BITS | KBD_AUX_CONTROL_BITS))) { 1364 /* CONTROLLER ERROR */ 1365 } 1366#else 1367 splx(s); 1368#endif 1369 kbdc_lock(kbdc, FALSE); 1370 1371 return 0; 1372} 1373 1374static int 1375get_kbd_id(KBDC kbdc) 1376{ 1377 int id1, id2; 1378 1379 empty_both_buffers(kbdc, 10); 1380 id1 = id2 = -1; 1381 if (send_kbd_command(kbdc, KBDC_SEND_DEV_ID) != KBD_ACK) 1382 return -1; 1383 1384 DELAY(10000); /* 10 msec delay */ 1385 id1 = read_kbd_data(kbdc); 1386 if (id1 != -1) 1387 id2 = read_kbd_data(kbdc); 1388 1389 if ((id1 == -1) || (id2 == -1)) { 1390 empty_both_buffers(kbdc, 10); 1391 test_controller(kbdc); 1392 test_kbd_port(kbdc); 1393 return -1; 1394 } 1395 return ((id2 << 8) | id1); 1396} 1397 1398static int 1399typematic(int delay, int rate) 1400{ 1401 static int delays[] = { 250, 500, 750, 1000 }; 1402 static int rates[] = { 34, 38, 42, 46, 50, 55, 59, 63, 1403 68, 76, 84, 92, 100, 110, 118, 126, 1404 136, 152, 168, 184, 200, 220, 236, 252, 1405 272, 304, 336, 368, 400, 440, 472, 504 }; 1406 int value; 1407 int i; 1408 1409 for (i = sizeof(delays)/sizeof(delays[0]) - 1; i > 0; --i) { 1410 if (delay >= delays[i]) 1411 break; 1412 } 1413 value = i << 5; 1414 for (i = sizeof(rates)/sizeof(rates[0]) - 1; i > 0; --i) { 1415 if (rate >= rates[i]) 1416 break; 1417 } 1418 value |= i; 1419 return value; 1420} 1421 1422#endif /* NATKBD > 0 */ 1423