1 /*- 2 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer as 10 * the first lines of this file unmodified. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 * 26 */ 27 28 #include <sys/cdefs.h> 29 __FBSDID("$FreeBSD$"); 30 31 #include "opt_kbd.h" 32 33 #include <sys/param.h> 34 #include <sys/systm.h> 35 #include <sys/kernel.h> 36 #include <sys/malloc.h> 37 #include <sys/conf.h> 38 #include <sys/fcntl.h> 39 #include <sys/poll.h> 40 #include <sys/priv.h> 41 #include <sys/proc.h> 42 #include <sys/selinfo.h> 43 #include <sys/sysctl.h> 44 #include <sys/uio.h> 45 46 #include <sys/kbio.h> 47 48 #include <dev/kbd/kbdreg.h> 49 50 #define KBD_INDEX(dev) dev2unit(dev) 51 52 #define KB_QSIZE 512 53 #define KB_BUFSIZE 64 54 55 typedef struct genkbd_softc { 56 int gkb_flags; /* flag/status bits */ 57 #define KB_ASLEEP (1 << 0) 58 struct selinfo gkb_rsel; 59 char gkb_q[KB_QSIZE]; /* input queue */ 60 unsigned int gkb_q_start; 61 unsigned int gkb_q_length; 62 } genkbd_softc_t; 63 64 static SLIST_HEAD(, keyboard_driver) keyboard_drivers = 65 SLIST_HEAD_INITIALIZER(keyboard_drivers); 66 67 SET_DECLARE(kbddriver_set, const keyboard_driver_t); 68 69 /* local arrays */ 70 71 /* 72 * We need at least one entry each in order to initialize a keyboard 73 * for the kernel console. The arrays will be increased dynamically 74 * when necessary. 75 */ 76 77 static int keyboards = 1; 78 static keyboard_t *kbd_ini; 79 static keyboard_t **keyboard = &kbd_ini; 80 static keyboard_switch_t *kbdsw_ini; 81 keyboard_switch_t **kbdsw = &kbdsw_ini; 82 83 static int keymap_restrict_change; 84 static SYSCTL_NODE(_hw, OID_AUTO, kbd, CTLFLAG_RD, 0, "kbd"); 85 SYSCTL_INT(_hw_kbd, OID_AUTO, keymap_restrict_change, CTLFLAG_RW, 86 &keymap_restrict_change, 0, "restrict ability to change keymap"); 87 88 #define ARRAY_DELTA 4 89 90 static int 91 kbd_realloc_array(void) 92 { 93 keyboard_t **new_kbd; 94 keyboard_switch_t **new_kbdsw; 95 int newsize; 96 int s; 97 98 s = spltty(); 99 newsize = rounddown(keyboards + ARRAY_DELTA, ARRAY_DELTA); 100 new_kbd = malloc(sizeof(*new_kbd)*newsize, M_DEVBUF, M_NOWAIT|M_ZERO); 101 if (new_kbd == NULL) { 102 splx(s); 103 return (ENOMEM); 104 } 105 new_kbdsw = malloc(sizeof(*new_kbdsw)*newsize, M_DEVBUF, 106 M_NOWAIT|M_ZERO); 107 if (new_kbdsw == NULL) { 108 free(new_kbd, M_DEVBUF); 109 splx(s); 110 return (ENOMEM); 111 } 112 bcopy(keyboard, new_kbd, sizeof(*keyboard)*keyboards); 113 bcopy(kbdsw, new_kbdsw, sizeof(*kbdsw)*keyboards); 114 if (keyboards > 1) { 115 free(keyboard, M_DEVBUF); 116 free(kbdsw, M_DEVBUF); 117 } 118 keyboard = new_kbd; 119 kbdsw = new_kbdsw; 120 keyboards = newsize; 121 splx(s); 122 123 if (bootverbose) 124 printf("kbd: new array size %d\n", keyboards); 125 126 return (0); 127 } 128 129 /* 130 * Low-level keyboard driver functions 131 * Keyboard subdrivers, such as the AT keyboard driver and the USB keyboard 132 * driver, call these functions to initialize the keyboard_t structure 133 * and register it to the virtual keyboard driver `kbd'. 134 */ 135 136 /* initialize the keyboard_t structure */ 137 void 138 kbd_init_struct(keyboard_t *kbd, char *name, int type, int unit, int config, 139 int port, int port_size) 140 { 141 kbd->kb_flags = KB_NO_DEVICE; /* device has not been found */ 142 kbd->kb_name = name; 143 kbd->kb_type = type; 144 kbd->kb_unit = unit; 145 kbd->kb_config = config & ~KB_CONF_PROBE_ONLY; 146 kbd->kb_led = 0; /* unknown */ 147 kbd->kb_io_base = port; 148 kbd->kb_io_size = port_size; 149 kbd->kb_data = NULL; 150 kbd->kb_keymap = NULL; 151 kbd->kb_accentmap = NULL; 152 kbd->kb_fkeytab = NULL; 153 kbd->kb_fkeytab_size = 0; 154 kbd->kb_delay1 = KB_DELAY1; /* these values are advisory only */ 155 kbd->kb_delay2 = KB_DELAY2; 156 kbd->kb_count = 0L; 157 bzero(kbd->kb_lastact, sizeof(kbd->kb_lastact)); 158 } 159 160 void 161 kbd_set_maps(keyboard_t *kbd, keymap_t *keymap, accentmap_t *accmap, 162 fkeytab_t *fkeymap, int fkeymap_size) 163 { 164 kbd->kb_keymap = keymap; 165 kbd->kb_accentmap = accmap; 166 kbd->kb_fkeytab = fkeymap; 167 kbd->kb_fkeytab_size = fkeymap_size; 168 } 169 170 /* declare a new keyboard driver */ 171 int 172 kbd_add_driver(keyboard_driver_t *driver) 173 { 174 if (SLIST_NEXT(driver, link)) 175 return (EINVAL); 176 SLIST_INSERT_HEAD(&keyboard_drivers, driver, link); 177 return (0); 178 } 179 180 int 181 kbd_delete_driver(keyboard_driver_t *driver) 182 { 183 SLIST_REMOVE(&keyboard_drivers, driver, keyboard_driver, link); 184 SLIST_NEXT(driver, link) = NULL; 185 return (0); 186 } 187 188 /* register a keyboard and associate it with a function table */ 189 int 190 kbd_register(keyboard_t *kbd) 191 { 192 const keyboard_driver_t **list; 193 const keyboard_driver_t *p; 194 keyboard_t *mux; 195 keyboard_info_t ki; 196 int index; 197 198 mux = kbd_get_keyboard(kbd_find_keyboard("kbdmux", -1)); 199 200 for (index = 0; index < keyboards; ++index) { 201 if (keyboard[index] == NULL) 202 break; 203 } 204 if (index >= keyboards) { 205 if (kbd_realloc_array()) 206 return (-1); 207 } 208 209 kbd->kb_index = index; 210 KBD_UNBUSY(kbd); 211 KBD_VALID(kbd); 212 kbd->kb_active = 0; /* disabled until someone calls kbd_enable() */ 213 kbd->kb_token = NULL; 214 kbd->kb_callback.kc_func = NULL; 215 kbd->kb_callback.kc_arg = NULL; 216 217 SLIST_FOREACH(p, &keyboard_drivers, link) { 218 if (strcmp(p->name, kbd->kb_name) == 0) { 219 keyboard[index] = kbd; 220 kbdsw[index] = p->kbdsw; 221 222 if (mux != NULL) { 223 bzero(&ki, sizeof(ki)); 224 strcpy(ki.kb_name, kbd->kb_name); 225 ki.kb_unit = kbd->kb_unit; 226 227 (void)kbdd_ioctl(mux, KBADDKBD, (caddr_t) &ki); 228 } 229 230 return (index); 231 } 232 } 233 SET_FOREACH(list, kbddriver_set) { 234 p = *list; 235 if (strcmp(p->name, kbd->kb_name) == 0) { 236 keyboard[index] = kbd; 237 kbdsw[index] = p->kbdsw; 238 239 if (mux != NULL) { 240 bzero(&ki, sizeof(ki)); 241 strcpy(ki.kb_name, kbd->kb_name); 242 ki.kb_unit = kbd->kb_unit; 243 244 (void)kbdd_ioctl(mux, KBADDKBD, (caddr_t) &ki); 245 } 246 247 return (index); 248 } 249 } 250 251 return (-1); 252 } 253 254 int 255 kbd_unregister(keyboard_t *kbd) 256 { 257 int error; 258 int s; 259 260 if ((kbd->kb_index < 0) || (kbd->kb_index >= keyboards)) 261 return (ENOENT); 262 if (keyboard[kbd->kb_index] != kbd) 263 return (ENOENT); 264 265 s = spltty(); 266 if (KBD_IS_BUSY(kbd)) { 267 error = (*kbd->kb_callback.kc_func)(kbd, KBDIO_UNLOADING, 268 kbd->kb_callback.kc_arg); 269 if (error) { 270 splx(s); 271 return (error); 272 } 273 if (KBD_IS_BUSY(kbd)) { 274 splx(s); 275 return (EBUSY); 276 } 277 } 278 KBD_INVALID(kbd); 279 keyboard[kbd->kb_index] = NULL; 280 kbdsw[kbd->kb_index] = NULL; 281 282 splx(s); 283 return (0); 284 } 285 286 /* find a function table by the driver name */ 287 keyboard_switch_t * 288 kbd_get_switch(char *driver) 289 { 290 const keyboard_driver_t **list; 291 const keyboard_driver_t *p; 292 293 SLIST_FOREACH(p, &keyboard_drivers, link) { 294 if (strcmp(p->name, driver) == 0) 295 return (p->kbdsw); 296 } 297 SET_FOREACH(list, kbddriver_set) { 298 p = *list; 299 if (strcmp(p->name, driver) == 0) 300 return (p->kbdsw); 301 } 302 303 return (NULL); 304 } 305 306 /* 307 * Keyboard client functions 308 * Keyboard clients, such as the console driver `syscons' and the keyboard 309 * cdev driver, use these functions to claim and release a keyboard for 310 * exclusive use. 311 */ 312 313 /* 314 * find the keyboard specified by a driver name and a unit number 315 * starting at given index 316 */ 317 int 318 kbd_find_keyboard2(char *driver, int unit, int index) 319 { 320 int i; 321 322 if ((index < 0) || (index >= keyboards)) 323 return (-1); 324 325 for (i = index; i < keyboards; ++i) { 326 if (keyboard[i] == NULL) 327 continue; 328 if (!KBD_IS_VALID(keyboard[i])) 329 continue; 330 if (strcmp("*", driver) && strcmp(keyboard[i]->kb_name, driver)) 331 continue; 332 if ((unit != -1) && (keyboard[i]->kb_unit != unit)) 333 continue; 334 return (i); 335 } 336 337 return (-1); 338 } 339 340 /* find the keyboard specified by a driver name and a unit number */ 341 int 342 kbd_find_keyboard(char *driver, int unit) 343 { 344 return (kbd_find_keyboard2(driver, unit, 0)); 345 } 346 347 /* allocate a keyboard */ 348 int 349 kbd_allocate(char *driver, int unit, void *id, kbd_callback_func_t *func, 350 void *arg) 351 { 352 int index; 353 int s; 354 355 if (func == NULL) 356 return (-1); 357 358 s = spltty(); 359 index = kbd_find_keyboard(driver, unit); 360 if (index >= 0) { 361 if (KBD_IS_BUSY(keyboard[index])) { 362 splx(s); 363 return (-1); 364 } 365 keyboard[index]->kb_token = id; 366 KBD_BUSY(keyboard[index]); 367 keyboard[index]->kb_callback.kc_func = func; 368 keyboard[index]->kb_callback.kc_arg = arg; 369 kbdd_clear_state(keyboard[index]); 370 } 371 splx(s); 372 return (index); 373 } 374 375 int 376 kbd_release(keyboard_t *kbd, void *id) 377 { 378 int error; 379 int s; 380 381 s = spltty(); 382 if (!KBD_IS_VALID(kbd) || !KBD_IS_BUSY(kbd)) { 383 error = EINVAL; 384 } else if (kbd->kb_token != id) { 385 error = EPERM; 386 } else { 387 kbd->kb_token = NULL; 388 KBD_UNBUSY(kbd); 389 kbd->kb_callback.kc_func = NULL; 390 kbd->kb_callback.kc_arg = NULL; 391 kbdd_clear_state(kbd); 392 error = 0; 393 } 394 splx(s); 395 return (error); 396 } 397 398 int 399 kbd_change_callback(keyboard_t *kbd, void *id, kbd_callback_func_t *func, 400 void *arg) 401 { 402 int error; 403 int s; 404 405 s = spltty(); 406 if (!KBD_IS_VALID(kbd) || !KBD_IS_BUSY(kbd)) { 407 error = EINVAL; 408 } else if (kbd->kb_token != id) { 409 error = EPERM; 410 } else if (func == NULL) { 411 error = EINVAL; 412 } else { 413 kbd->kb_callback.kc_func = func; 414 kbd->kb_callback.kc_arg = arg; 415 error = 0; 416 } 417 splx(s); 418 return (error); 419 } 420 421 /* get a keyboard structure */ 422 keyboard_t * 423 kbd_get_keyboard(int index) 424 { 425 if ((index < 0) || (index >= keyboards)) 426 return (NULL); 427 if (keyboard[index] == NULL) 428 return (NULL); 429 if (!KBD_IS_VALID(keyboard[index])) 430 return (NULL); 431 return (keyboard[index]); 432 } 433 434 /* 435 * The back door for the console driver; configure keyboards 436 * This function is for the kernel console to initialize keyboards 437 * at very early stage. 438 */ 439 440 int 441 kbd_configure(int flags) 442 { 443 const keyboard_driver_t **list; 444 const keyboard_driver_t *p; 445 446 SLIST_FOREACH(p, &keyboard_drivers, link) { 447 if (p->configure != NULL) 448 (*p->configure)(flags); 449 } 450 SET_FOREACH(list, kbddriver_set) { 451 p = *list; 452 if (p->configure != NULL) 453 (*p->configure)(flags); 454 } 455 456 return (0); 457 } 458 459 #ifdef KBD_INSTALL_CDEV 460 461 /* 462 * Virtual keyboard cdev driver functions 463 * The virtual keyboard driver dispatches driver functions to 464 * appropriate subdrivers. 465 */ 466 467 #define KBD_UNIT(dev) dev2unit(dev) 468 469 static d_open_t genkbdopen; 470 static d_close_t genkbdclose; 471 static d_read_t genkbdread; 472 static d_write_t genkbdwrite; 473 static d_ioctl_t genkbdioctl; 474 static d_poll_t genkbdpoll; 475 476 477 static struct cdevsw kbd_cdevsw = { 478 .d_version = D_VERSION, 479 .d_flags = D_NEEDGIANT, 480 .d_open = genkbdopen, 481 .d_close = genkbdclose, 482 .d_read = genkbdread, 483 .d_write = genkbdwrite, 484 .d_ioctl = genkbdioctl, 485 .d_poll = genkbdpoll, 486 .d_name = "kbd", 487 }; 488 489 int 490 kbd_attach(keyboard_t *kbd) 491 { 492 493 if (kbd->kb_index >= keyboards) 494 return (EINVAL); 495 if (keyboard[kbd->kb_index] != kbd) 496 return (EINVAL); 497 498 kbd->kb_dev = make_dev(&kbd_cdevsw, kbd->kb_index, UID_ROOT, GID_WHEEL, 499 0600, "%s%r", kbd->kb_name, kbd->kb_unit); 500 make_dev_alias(kbd->kb_dev, "kbd%r", kbd->kb_index); 501 kbd->kb_dev->si_drv1 = malloc(sizeof(genkbd_softc_t), M_DEVBUF, 502 M_WAITOK | M_ZERO); 503 printf("kbd%d at %s%d\n", kbd->kb_index, kbd->kb_name, kbd->kb_unit); 504 return (0); 505 } 506 507 int 508 kbd_detach(keyboard_t *kbd) 509 { 510 511 if (kbd->kb_index >= keyboards) 512 return (EINVAL); 513 if (keyboard[kbd->kb_index] != kbd) 514 return (EINVAL); 515 516 free(kbd->kb_dev->si_drv1, M_DEVBUF); 517 destroy_dev(kbd->kb_dev); 518 519 return (0); 520 } 521 522 /* 523 * Generic keyboard cdev driver functions 524 * Keyboard subdrivers may call these functions to implement common 525 * driver functions. 526 */ 527 528 static void 529 genkbd_putc(genkbd_softc_t *sc, char c) 530 { 531 unsigned int p; 532 533 if (sc->gkb_q_length == KB_QSIZE) 534 return; 535 536 p = (sc->gkb_q_start + sc->gkb_q_length) % KB_QSIZE; 537 sc->gkb_q[p] = c; 538 sc->gkb_q_length++; 539 } 540 541 static size_t 542 genkbd_getc(genkbd_softc_t *sc, char *buf, size_t len) 543 { 544 545 /* Determine copy size. */ 546 if (sc->gkb_q_length == 0) 547 return (0); 548 if (len >= sc->gkb_q_length) 549 len = sc->gkb_q_length; 550 if (len >= KB_QSIZE - sc->gkb_q_start) 551 len = KB_QSIZE - sc->gkb_q_start; 552 553 /* Copy out data and progress offset. */ 554 memcpy(buf, sc->gkb_q + sc->gkb_q_start, len); 555 sc->gkb_q_start = (sc->gkb_q_start + len) % KB_QSIZE; 556 sc->gkb_q_length -= len; 557 558 return (len); 559 } 560 561 static kbd_callback_func_t genkbd_event; 562 563 static int 564 genkbdopen(struct cdev *dev, int mode, int flag, struct thread *td) 565 { 566 keyboard_t *kbd; 567 genkbd_softc_t *sc; 568 int s; 569 int i; 570 571 s = spltty(); 572 sc = dev->si_drv1; 573 kbd = kbd_get_keyboard(KBD_INDEX(dev)); 574 if ((sc == NULL) || (kbd == NULL) || !KBD_IS_VALID(kbd)) { 575 splx(s); 576 return (ENXIO); 577 } 578 i = kbd_allocate(kbd->kb_name, kbd->kb_unit, sc, 579 genkbd_event, (void *)sc); 580 if (i < 0) { 581 splx(s); 582 return (EBUSY); 583 } 584 /* assert(i == kbd->kb_index) */ 585 /* assert(kbd == kbd_get_keyboard(i)) */ 586 587 /* 588 * NOTE: even when we have successfully claimed a keyboard, 589 * the device may still be missing (!KBD_HAS_DEVICE(kbd)). 590 */ 591 592 sc->gkb_q_length = 0; 593 splx(s); 594 595 return (0); 596 } 597 598 static int 599 genkbdclose(struct cdev *dev, int mode, int flag, struct thread *td) 600 { 601 keyboard_t *kbd; 602 genkbd_softc_t *sc; 603 int s; 604 605 /* 606 * NOTE: the device may have already become invalid. 607 * kbd == NULL || !KBD_IS_VALID(kbd) 608 */ 609 s = spltty(); 610 sc = dev->si_drv1; 611 kbd = kbd_get_keyboard(KBD_INDEX(dev)); 612 if ((sc == NULL) || (kbd == NULL) || !KBD_IS_VALID(kbd)) { 613 /* XXX: we shall be forgiving and don't report error... */ 614 } else { 615 kbd_release(kbd, (void *)sc); 616 } 617 splx(s); 618 return (0); 619 } 620 621 static int 622 genkbdread(struct cdev *dev, struct uio *uio, int flag) 623 { 624 keyboard_t *kbd; 625 genkbd_softc_t *sc; 626 u_char buffer[KB_BUFSIZE]; 627 int len; 628 int error; 629 int s; 630 631 /* wait for input */ 632 s = spltty(); 633 sc = dev->si_drv1; 634 kbd = kbd_get_keyboard(KBD_INDEX(dev)); 635 if ((sc == NULL) || (kbd == NULL) || !KBD_IS_VALID(kbd)) { 636 splx(s); 637 return (ENXIO); 638 } 639 while (sc->gkb_q_length == 0) { 640 if (flag & O_NONBLOCK) { 641 splx(s); 642 return (EWOULDBLOCK); 643 } 644 sc->gkb_flags |= KB_ASLEEP; 645 error = tsleep(sc, PZERO | PCATCH, "kbdrea", 0); 646 kbd = kbd_get_keyboard(KBD_INDEX(dev)); 647 if ((kbd == NULL) || !KBD_IS_VALID(kbd)) { 648 splx(s); 649 return (ENXIO); /* our keyboard has gone... */ 650 } 651 if (error) { 652 sc->gkb_flags &= ~KB_ASLEEP; 653 splx(s); 654 return (error); 655 } 656 } 657 splx(s); 658 659 /* copy as much input as possible */ 660 error = 0; 661 while (uio->uio_resid > 0) { 662 len = imin(uio->uio_resid, sizeof(buffer)); 663 len = genkbd_getc(sc, buffer, len); 664 if (len <= 0) 665 break; 666 error = uiomove(buffer, len, uio); 667 if (error) 668 break; 669 } 670 671 return (error); 672 } 673 674 static int 675 genkbdwrite(struct cdev *dev, struct uio *uio, int flag) 676 { 677 keyboard_t *kbd; 678 679 kbd = kbd_get_keyboard(KBD_INDEX(dev)); 680 if ((kbd == NULL) || !KBD_IS_VALID(kbd)) 681 return (ENXIO); 682 return (ENODEV); 683 } 684 685 static int 686 genkbdioctl(struct cdev *dev, u_long cmd, caddr_t arg, int flag, struct thread *td) 687 { 688 keyboard_t *kbd; 689 int error; 690 691 kbd = kbd_get_keyboard(KBD_INDEX(dev)); 692 if ((kbd == NULL) || !KBD_IS_VALID(kbd)) 693 return (ENXIO); 694 error = kbdd_ioctl(kbd, cmd, arg); 695 if (error == ENOIOCTL) 696 error = ENODEV; 697 return (error); 698 } 699 700 static int 701 genkbdpoll(struct cdev *dev, int events, struct thread *td) 702 { 703 keyboard_t *kbd; 704 genkbd_softc_t *sc; 705 int revents; 706 int s; 707 708 revents = 0; 709 s = spltty(); 710 sc = dev->si_drv1; 711 kbd = kbd_get_keyboard(KBD_INDEX(dev)); 712 if ((sc == NULL) || (kbd == NULL) || !KBD_IS_VALID(kbd)) { 713 revents = POLLHUP; /* the keyboard has gone */ 714 } else if (events & (POLLIN | POLLRDNORM)) { 715 if (sc->gkb_q_length > 0) 716 revents = events & (POLLIN | POLLRDNORM); 717 else 718 selrecord(td, &sc->gkb_rsel); 719 } 720 splx(s); 721 return (revents); 722 } 723 724 static int 725 genkbd_event(keyboard_t *kbd, int event, void *arg) 726 { 727 genkbd_softc_t *sc; 728 size_t len; 729 u_char *cp; 730 int mode; 731 u_int c; 732 733 /* assert(KBD_IS_VALID(kbd)) */ 734 sc = (genkbd_softc_t *)arg; 735 736 switch (event) { 737 case KBDIO_KEYINPUT: 738 break; 739 case KBDIO_UNLOADING: 740 /* the keyboard is going... */ 741 kbd_release(kbd, (void *)sc); 742 if (sc->gkb_flags & KB_ASLEEP) { 743 sc->gkb_flags &= ~KB_ASLEEP; 744 wakeup(sc); 745 } 746 selwakeuppri(&sc->gkb_rsel, PZERO); 747 return (0); 748 default: 749 return (EINVAL); 750 } 751 752 /* obtain the current key input mode */ 753 if (kbdd_ioctl(kbd, KDGKBMODE, (caddr_t)&mode)) 754 mode = K_XLATE; 755 756 /* read all pending input */ 757 while (kbdd_check_char(kbd)) { 758 c = kbdd_read_char(kbd, FALSE); 759 if (c == NOKEY) 760 continue; 761 if (c == ERRKEY) /* XXX: ring bell? */ 762 continue; 763 if (!KBD_IS_BUSY(kbd)) 764 /* the device is not open, discard the input */ 765 continue; 766 767 /* store the byte as is for K_RAW and K_CODE modes */ 768 if (mode != K_XLATE) { 769 genkbd_putc(sc, KEYCHAR(c)); 770 continue; 771 } 772 773 /* K_XLATE */ 774 if (c & RELKEY) /* key release is ignored */ 775 continue; 776 777 /* process special keys; most of them are just ignored... */ 778 if (c & SPCLKEY) { 779 switch (KEYCHAR(c)) { 780 default: 781 /* ignore them... */ 782 continue; 783 case BTAB: /* a backtab: ESC [ Z */ 784 genkbd_putc(sc, 0x1b); 785 genkbd_putc(sc, '['); 786 genkbd_putc(sc, 'Z'); 787 continue; 788 } 789 } 790 791 /* normal chars, normal chars with the META, function keys */ 792 switch (KEYFLAGS(c)) { 793 case 0: /* a normal char */ 794 genkbd_putc(sc, KEYCHAR(c)); 795 break; 796 case MKEY: /* the META flag: prepend ESC */ 797 genkbd_putc(sc, 0x1b); 798 genkbd_putc(sc, KEYCHAR(c)); 799 break; 800 case FKEY | SPCLKEY: /* a function key, return string */ 801 cp = kbdd_get_fkeystr(kbd, KEYCHAR(c), &len); 802 if (cp != NULL) { 803 while (len-- > 0) 804 genkbd_putc(sc, *cp++); 805 } 806 break; 807 } 808 } 809 810 /* wake up sleeping/polling processes */ 811 if (sc->gkb_q_length > 0) { 812 if (sc->gkb_flags & KB_ASLEEP) { 813 sc->gkb_flags &= ~KB_ASLEEP; 814 wakeup(sc); 815 } 816 selwakeuppri(&sc->gkb_rsel, PZERO); 817 } 818 819 return (0); 820 } 821 822 #endif /* KBD_INSTALL_CDEV */ 823 824 /* 825 * Generic low-level keyboard functions 826 * The low-level functions in the keyboard subdriver may use these 827 * functions. 828 */ 829 830 #ifndef KBD_DISABLE_KEYMAP_LOAD 831 static int key_change_ok(struct keyent_t *, struct keyent_t *, struct thread *); 832 static int keymap_change_ok(keymap_t *, keymap_t *, struct thread *); 833 static int accent_change_ok(accentmap_t *, accentmap_t *, struct thread *); 834 static int fkey_change_ok(fkeytab_t *, fkeyarg_t *, struct thread *); 835 #endif 836 837 int 838 genkbd_commonioctl(keyboard_t *kbd, u_long cmd, caddr_t arg) 839 { 840 keymap_t *mapp; 841 okeymap_t *omapp; 842 keyarg_t *keyp; 843 fkeyarg_t *fkeyp; 844 int s; 845 int i, j; 846 int error; 847 848 s = spltty(); 849 switch (cmd) { 850 851 case KDGKBINFO: /* get keyboard information */ 852 ((keyboard_info_t *)arg)->kb_index = kbd->kb_index; 853 i = imin(strlen(kbd->kb_name) + 1, 854 sizeof(((keyboard_info_t *)arg)->kb_name)); 855 bcopy(kbd->kb_name, ((keyboard_info_t *)arg)->kb_name, i); 856 ((keyboard_info_t *)arg)->kb_unit = kbd->kb_unit; 857 ((keyboard_info_t *)arg)->kb_type = kbd->kb_type; 858 ((keyboard_info_t *)arg)->kb_config = kbd->kb_config; 859 ((keyboard_info_t *)arg)->kb_flags = kbd->kb_flags; 860 break; 861 862 case KDGKBTYPE: /* get keyboard type */ 863 *(int *)arg = kbd->kb_type; 864 break; 865 866 case KDGETREPEAT: /* get keyboard repeat rate */ 867 ((int *)arg)[0] = kbd->kb_delay1; 868 ((int *)arg)[1] = kbd->kb_delay2; 869 break; 870 871 case GIO_KEYMAP: /* get keyboard translation table */ 872 error = copyout(kbd->kb_keymap, *(void **)arg, 873 sizeof(keymap_t)); 874 splx(s); 875 return (error); 876 case OGIO_KEYMAP: /* get keyboard translation table (compat) */ 877 mapp = kbd->kb_keymap; 878 omapp = (okeymap_t *)arg; 879 omapp->n_keys = mapp->n_keys; 880 for (i = 0; i < NUM_KEYS; i++) { 881 for (j = 0; j < NUM_STATES; j++) 882 omapp->key[i].map[j] = 883 mapp->key[i].map[j]; 884 omapp->key[i].spcl = mapp->key[i].spcl; 885 omapp->key[i].flgs = mapp->key[i].flgs; 886 } 887 break; 888 case PIO_KEYMAP: /* set keyboard translation table */ 889 case OPIO_KEYMAP: /* set keyboard translation table (compat) */ 890 #ifndef KBD_DISABLE_KEYMAP_LOAD 891 mapp = malloc(sizeof *mapp, M_TEMP, M_WAITOK); 892 if (cmd == OPIO_KEYMAP) { 893 omapp = (okeymap_t *)arg; 894 mapp->n_keys = omapp->n_keys; 895 for (i = 0; i < NUM_KEYS; i++) { 896 for (j = 0; j < NUM_STATES; j++) 897 mapp->key[i].map[j] = 898 omapp->key[i].map[j]; 899 mapp->key[i].spcl = omapp->key[i].spcl; 900 mapp->key[i].flgs = omapp->key[i].flgs; 901 } 902 } else { 903 error = copyin(*(void **)arg, mapp, sizeof *mapp); 904 if (error != 0) { 905 splx(s); 906 free(mapp, M_TEMP); 907 return (error); 908 } 909 } 910 911 error = keymap_change_ok(kbd->kb_keymap, mapp, curthread); 912 if (error != 0) { 913 splx(s); 914 free(mapp, M_TEMP); 915 return (error); 916 } 917 bzero(kbd->kb_accentmap, sizeof(*kbd->kb_accentmap)); 918 bcopy(mapp, kbd->kb_keymap, sizeof(*kbd->kb_keymap)); 919 free(mapp, M_TEMP); 920 break; 921 #else 922 splx(s); 923 return (ENODEV); 924 #endif 925 926 case GIO_KEYMAPENT: /* get keyboard translation table entry */ 927 keyp = (keyarg_t *)arg; 928 if (keyp->keynum >= sizeof(kbd->kb_keymap->key) / 929 sizeof(kbd->kb_keymap->key[0])) { 930 splx(s); 931 return (EINVAL); 932 } 933 bcopy(&kbd->kb_keymap->key[keyp->keynum], &keyp->key, 934 sizeof(keyp->key)); 935 break; 936 case PIO_KEYMAPENT: /* set keyboard translation table entry */ 937 #ifndef KBD_DISABLE_KEYMAP_LOAD 938 keyp = (keyarg_t *)arg; 939 if (keyp->keynum >= sizeof(kbd->kb_keymap->key) / 940 sizeof(kbd->kb_keymap->key[0])) { 941 splx(s); 942 return (EINVAL); 943 } 944 error = key_change_ok(&kbd->kb_keymap->key[keyp->keynum], 945 &keyp->key, curthread); 946 if (error != 0) { 947 splx(s); 948 return (error); 949 } 950 bcopy(&keyp->key, &kbd->kb_keymap->key[keyp->keynum], 951 sizeof(keyp->key)); 952 break; 953 #else 954 splx(s); 955 return (ENODEV); 956 #endif 957 958 case GIO_DEADKEYMAP: /* get accent key translation table */ 959 bcopy(kbd->kb_accentmap, arg, sizeof(*kbd->kb_accentmap)); 960 break; 961 case PIO_DEADKEYMAP: /* set accent key translation table */ 962 #ifndef KBD_DISABLE_KEYMAP_LOAD 963 error = accent_change_ok(kbd->kb_accentmap, 964 (accentmap_t *)arg, curthread); 965 if (error != 0) { 966 splx(s); 967 return (error); 968 } 969 bcopy(arg, kbd->kb_accentmap, sizeof(*kbd->kb_accentmap)); 970 break; 971 #else 972 splx(s); 973 return (ENODEV); 974 #endif 975 976 case GETFKEY: /* get functionkey string */ 977 fkeyp = (fkeyarg_t *)arg; 978 if (fkeyp->keynum >= kbd->kb_fkeytab_size) { 979 splx(s); 980 return (EINVAL); 981 } 982 bcopy(kbd->kb_fkeytab[fkeyp->keynum].str, fkeyp->keydef, 983 kbd->kb_fkeytab[fkeyp->keynum].len); 984 fkeyp->flen = kbd->kb_fkeytab[fkeyp->keynum].len; 985 break; 986 case SETFKEY: /* set functionkey string */ 987 #ifndef KBD_DISABLE_KEYMAP_LOAD 988 fkeyp = (fkeyarg_t *)arg; 989 if (fkeyp->keynum >= kbd->kb_fkeytab_size) { 990 splx(s); 991 return (EINVAL); 992 } 993 error = fkey_change_ok(&kbd->kb_fkeytab[fkeyp->keynum], 994 fkeyp, curthread); 995 if (error != 0) { 996 splx(s); 997 return (error); 998 } 999 kbd->kb_fkeytab[fkeyp->keynum].len = min(fkeyp->flen, MAXFK); 1000 bcopy(fkeyp->keydef, kbd->kb_fkeytab[fkeyp->keynum].str, 1001 kbd->kb_fkeytab[fkeyp->keynum].len); 1002 break; 1003 #else 1004 splx(s); 1005 return (ENODEV); 1006 #endif 1007 1008 default: 1009 splx(s); 1010 return (ENOIOCTL); 1011 } 1012 1013 splx(s); 1014 return (0); 1015 } 1016 1017 #ifndef KBD_DISABLE_KEYMAP_LOAD 1018 #define RESTRICTED_KEY(key, i) \ 1019 ((key->spcl & (0x80 >> i)) && \ 1020 (key->map[i] == RBT || key->map[i] == SUSP || \ 1021 key->map[i] == STBY || key->map[i] == DBG || \ 1022 key->map[i] == PNC || key->map[i] == HALT || \ 1023 key->map[i] == PDWN)) 1024 1025 static int 1026 key_change_ok(struct keyent_t *oldkey, struct keyent_t *newkey, struct thread *td) 1027 { 1028 int i; 1029 1030 /* Low keymap_restrict_change means any changes are OK. */ 1031 if (keymap_restrict_change <= 0) 1032 return (0); 1033 1034 /* High keymap_restrict_change means only root can change the keymap. */ 1035 if (keymap_restrict_change >= 2) { 1036 for (i = 0; i < NUM_STATES; i++) 1037 if (oldkey->map[i] != newkey->map[i]) 1038 return priv_check(td, PRIV_KEYBOARD); 1039 if (oldkey->spcl != newkey->spcl) 1040 return priv_check(td, PRIV_KEYBOARD); 1041 if (oldkey->flgs != newkey->flgs) 1042 return priv_check(td, PRIV_KEYBOARD); 1043 return (0); 1044 } 1045 1046 /* Otherwise we have to see if any special keys are being changed. */ 1047 for (i = 0; i < NUM_STATES; i++) { 1048 /* 1049 * If either the oldkey or the newkey action is restricted 1050 * then we must make sure that the action doesn't change. 1051 */ 1052 if (!RESTRICTED_KEY(oldkey, i) && !RESTRICTED_KEY(newkey, i)) 1053 continue; 1054 if ((oldkey->spcl & (0x80 >> i)) == (newkey->spcl & (0x80 >> i)) 1055 && oldkey->map[i] == newkey->map[i]) 1056 continue; 1057 return priv_check(td, PRIV_KEYBOARD); 1058 } 1059 1060 return (0); 1061 } 1062 1063 static int 1064 keymap_change_ok(keymap_t *oldmap, keymap_t *newmap, struct thread *td) 1065 { 1066 int keycode, error; 1067 1068 for (keycode = 0; keycode < NUM_KEYS; keycode++) { 1069 if ((error = key_change_ok(&oldmap->key[keycode], 1070 &newmap->key[keycode], td)) != 0) 1071 return (error); 1072 } 1073 return (0); 1074 } 1075 1076 static int 1077 accent_change_ok(accentmap_t *oldmap, accentmap_t *newmap, struct thread *td) 1078 { 1079 struct acc_t *oldacc, *newacc; 1080 int accent, i; 1081 1082 if (keymap_restrict_change <= 2) 1083 return (0); 1084 1085 if (oldmap->n_accs != newmap->n_accs) 1086 return priv_check(td, PRIV_KEYBOARD); 1087 1088 for (accent = 0; accent < oldmap->n_accs; accent++) { 1089 oldacc = &oldmap->acc[accent]; 1090 newacc = &newmap->acc[accent]; 1091 if (oldacc->accchar != newacc->accchar) 1092 return priv_check(td, PRIV_KEYBOARD); 1093 for (i = 0; i < NUM_ACCENTCHARS; ++i) { 1094 if (oldacc->map[i][0] != newacc->map[i][0]) 1095 return priv_check(td, PRIV_KEYBOARD); 1096 if (oldacc->map[i][0] == 0) /* end of table */ 1097 break; 1098 if (oldacc->map[i][1] != newacc->map[i][1]) 1099 return priv_check(td, PRIV_KEYBOARD); 1100 } 1101 } 1102 1103 return (0); 1104 } 1105 1106 static int 1107 fkey_change_ok(fkeytab_t *oldkey, fkeyarg_t *newkey, struct thread *td) 1108 { 1109 if (keymap_restrict_change <= 3) 1110 return (0); 1111 1112 if (oldkey->len != newkey->flen || 1113 bcmp(oldkey->str, newkey->keydef, oldkey->len) != 0) 1114 return priv_check(td, PRIV_KEYBOARD); 1115 1116 return (0); 1117 } 1118 #endif 1119 1120 /* get a pointer to the string associated with the given function key */ 1121 u_char * 1122 genkbd_get_fkeystr(keyboard_t *kbd, int fkey, size_t *len) 1123 { 1124 if (kbd == NULL) 1125 return (NULL); 1126 fkey -= F_FN; 1127 if (fkey > kbd->kb_fkeytab_size) 1128 return (NULL); 1129 *len = kbd->kb_fkeytab[fkey].len; 1130 return (kbd->kb_fkeytab[fkey].str); 1131 } 1132 1133 /* diagnostic dump */ 1134 static char * 1135 get_kbd_type_name(int type) 1136 { 1137 static struct { 1138 int type; 1139 char *name; 1140 } name_table[] = { 1141 { KB_84, "AT 84" }, 1142 { KB_101, "AT 101/102" }, 1143 { KB_OTHER, "generic" }, 1144 }; 1145 int i; 1146 1147 for (i = 0; i < nitems(name_table); ++i) { 1148 if (type == name_table[i].type) 1149 return (name_table[i].name); 1150 } 1151 return ("unknown"); 1152 } 1153 1154 void 1155 genkbd_diag(keyboard_t *kbd, int level) 1156 { 1157 if (level > 0) { 1158 printf("kbd%d: %s%d, %s (%d), config:0x%x, flags:0x%x", 1159 kbd->kb_index, kbd->kb_name, kbd->kb_unit, 1160 get_kbd_type_name(kbd->kb_type), kbd->kb_type, 1161 kbd->kb_config, kbd->kb_flags); 1162 if (kbd->kb_io_base > 0) 1163 printf(", port:0x%x-0x%x", kbd->kb_io_base, 1164 kbd->kb_io_base + kbd->kb_io_size - 1); 1165 printf("\n"); 1166 } 1167 } 1168 1169 #define set_lockkey_state(k, s, l) \ 1170 if (!((s) & l ## DOWN)) { \ 1171 int i; \ 1172 (s) |= l ## DOWN; \ 1173 (s) ^= l ## ED; \ 1174 i = (s) & LOCK_MASK; \ 1175 (void)kbdd_ioctl((k), KDSETLED, (caddr_t)&i); \ 1176 } 1177 1178 static u_int 1179 save_accent_key(keyboard_t *kbd, u_int key, int *accents) 1180 { 1181 int i; 1182 1183 /* make an index into the accent map */ 1184 i = key - F_ACC + 1; 1185 if ((i > kbd->kb_accentmap->n_accs) 1186 || (kbd->kb_accentmap->acc[i - 1].accchar == 0)) { 1187 /* the index is out of range or pointing to an empty entry */ 1188 *accents = 0; 1189 return (ERRKEY); 1190 } 1191 1192 /* 1193 * If the same accent key has been hit twice, produce the accent 1194 * char itself. 1195 */ 1196 if (i == *accents) { 1197 key = kbd->kb_accentmap->acc[i - 1].accchar; 1198 *accents = 0; 1199 return (key); 1200 } 1201 1202 /* remember the index and wait for the next key */ 1203 *accents = i; 1204 return (NOKEY); 1205 } 1206 1207 static u_int 1208 make_accent_char(keyboard_t *kbd, u_int ch, int *accents) 1209 { 1210 struct acc_t *acc; 1211 int i; 1212 1213 acc = &kbd->kb_accentmap->acc[*accents - 1]; 1214 *accents = 0; 1215 1216 /* 1217 * If the accent key is followed by the space key, 1218 * produce the accent char itself. 1219 */ 1220 if (ch == ' ') 1221 return (acc->accchar); 1222 1223 /* scan the accent map */ 1224 for (i = 0; i < NUM_ACCENTCHARS; ++i) { 1225 if (acc->map[i][0] == 0) /* end of table */ 1226 break; 1227 if (acc->map[i][0] == ch) 1228 return (acc->map[i][1]); 1229 } 1230 /* this char cannot be accented... */ 1231 return (ERRKEY); 1232 } 1233 1234 int 1235 genkbd_keyaction(keyboard_t *kbd, int keycode, int up, int *shiftstate, 1236 int *accents) 1237 { 1238 struct keyent_t *key; 1239 int state = *shiftstate; 1240 int action; 1241 int f; 1242 int i; 1243 1244 i = keycode; 1245 f = state & (AGRS | ALKED); 1246 if ((f == AGRS1) || (f == AGRS2) || (f == ALKED)) 1247 i += ALTGR_OFFSET; 1248 key = &kbd->kb_keymap->key[i]; 1249 i = ((state & SHIFTS) ? 1 : 0) 1250 | ((state & CTLS) ? 2 : 0) 1251 | ((state & ALTS) ? 4 : 0); 1252 if (((key->flgs & FLAG_LOCK_C) && (state & CLKED)) 1253 || ((key->flgs & FLAG_LOCK_N) && (state & NLKED)) ) 1254 i ^= 1; 1255 1256 if (up) { /* break: key released */ 1257 action = kbd->kb_lastact[keycode]; 1258 kbd->kb_lastact[keycode] = NOP; 1259 switch (action) { 1260 case LSHA: 1261 if (state & SHIFTAON) { 1262 set_lockkey_state(kbd, state, ALK); 1263 state &= ~ALKDOWN; 1264 } 1265 action = LSH; 1266 /* FALL THROUGH */ 1267 case LSH: 1268 state &= ~SHIFTS1; 1269 break; 1270 case RSHA: 1271 if (state & SHIFTAON) { 1272 set_lockkey_state(kbd, state, ALK); 1273 state &= ~ALKDOWN; 1274 } 1275 action = RSH; 1276 /* FALL THROUGH */ 1277 case RSH: 1278 state &= ~SHIFTS2; 1279 break; 1280 case LCTRA: 1281 if (state & SHIFTAON) { 1282 set_lockkey_state(kbd, state, ALK); 1283 state &= ~ALKDOWN; 1284 } 1285 action = LCTR; 1286 /* FALL THROUGH */ 1287 case LCTR: 1288 state &= ~CTLS1; 1289 break; 1290 case RCTRA: 1291 if (state & SHIFTAON) { 1292 set_lockkey_state(kbd, state, ALK); 1293 state &= ~ALKDOWN; 1294 } 1295 action = RCTR; 1296 /* FALL THROUGH */ 1297 case RCTR: 1298 state &= ~CTLS2; 1299 break; 1300 case LALTA: 1301 if (state & SHIFTAON) { 1302 set_lockkey_state(kbd, state, ALK); 1303 state &= ~ALKDOWN; 1304 } 1305 action = LALT; 1306 /* FALL THROUGH */ 1307 case LALT: 1308 state &= ~ALTS1; 1309 break; 1310 case RALTA: 1311 if (state & SHIFTAON) { 1312 set_lockkey_state(kbd, state, ALK); 1313 state &= ~ALKDOWN; 1314 } 1315 action = RALT; 1316 /* FALL THROUGH */ 1317 case RALT: 1318 state &= ~ALTS2; 1319 break; 1320 case ASH: 1321 state &= ~AGRS1; 1322 break; 1323 case META: 1324 state &= ~METAS1; 1325 break; 1326 case NLK: 1327 state &= ~NLKDOWN; 1328 break; 1329 case CLK: 1330 state &= ~CLKDOWN; 1331 break; 1332 case SLK: 1333 state &= ~SLKDOWN; 1334 break; 1335 case ALK: 1336 state &= ~ALKDOWN; 1337 break; 1338 case NOP: 1339 /* release events of regular keys are not reported */ 1340 *shiftstate &= ~SHIFTAON; 1341 return (NOKEY); 1342 } 1343 *shiftstate = state & ~SHIFTAON; 1344 return (SPCLKEY | RELKEY | action); 1345 } else { /* make: key pressed */ 1346 action = key->map[i]; 1347 state &= ~SHIFTAON; 1348 if (key->spcl & (0x80 >> i)) { 1349 /* special keys */ 1350 if (kbd->kb_lastact[keycode] == NOP) 1351 kbd->kb_lastact[keycode] = action; 1352 if (kbd->kb_lastact[keycode] != action) 1353 action = NOP; 1354 switch (action) { 1355 /* LOCKING KEYS */ 1356 case NLK: 1357 set_lockkey_state(kbd, state, NLK); 1358 break; 1359 case CLK: 1360 set_lockkey_state(kbd, state, CLK); 1361 break; 1362 case SLK: 1363 set_lockkey_state(kbd, state, SLK); 1364 break; 1365 case ALK: 1366 set_lockkey_state(kbd, state, ALK); 1367 break; 1368 /* NON-LOCKING KEYS */ 1369 case SPSC: case RBT: case SUSP: case STBY: 1370 case DBG: case NEXT: case PREV: case PNC: 1371 case HALT: case PDWN: 1372 *accents = 0; 1373 break; 1374 case BTAB: 1375 *accents = 0; 1376 action |= BKEY; 1377 break; 1378 case LSHA: 1379 state |= SHIFTAON; 1380 action = LSH; 1381 /* FALL THROUGH */ 1382 case LSH: 1383 state |= SHIFTS1; 1384 break; 1385 case RSHA: 1386 state |= SHIFTAON; 1387 action = RSH; 1388 /* FALL THROUGH */ 1389 case RSH: 1390 state |= SHIFTS2; 1391 break; 1392 case LCTRA: 1393 state |= SHIFTAON; 1394 action = LCTR; 1395 /* FALL THROUGH */ 1396 case LCTR: 1397 state |= CTLS1; 1398 break; 1399 case RCTRA: 1400 state |= SHIFTAON; 1401 action = RCTR; 1402 /* FALL THROUGH */ 1403 case RCTR: 1404 state |= CTLS2; 1405 break; 1406 case LALTA: 1407 state |= SHIFTAON; 1408 action = LALT; 1409 /* FALL THROUGH */ 1410 case LALT: 1411 state |= ALTS1; 1412 break; 1413 case RALTA: 1414 state |= SHIFTAON; 1415 action = RALT; 1416 /* FALL THROUGH */ 1417 case RALT: 1418 state |= ALTS2; 1419 break; 1420 case ASH: 1421 state |= AGRS1; 1422 break; 1423 case META: 1424 state |= METAS1; 1425 break; 1426 case NOP: 1427 *shiftstate = state; 1428 return (NOKEY); 1429 default: 1430 /* is this an accent (dead) key? */ 1431 *shiftstate = state; 1432 if (action >= F_ACC && action <= L_ACC) { 1433 action = save_accent_key(kbd, action, 1434 accents); 1435 switch (action) { 1436 case NOKEY: 1437 case ERRKEY: 1438 return (action); 1439 default: 1440 if (state & METAS) 1441 return (action | MKEY); 1442 else 1443 return (action); 1444 } 1445 /* NOT REACHED */ 1446 } 1447 /* other special keys */ 1448 if (*accents > 0) { 1449 *accents = 0; 1450 return (ERRKEY); 1451 } 1452 if (action >= F_FN && action <= L_FN) 1453 action |= FKEY; 1454 /* XXX: return fkey string for the FKEY? */ 1455 return (SPCLKEY | action); 1456 } 1457 *shiftstate = state; 1458 return (SPCLKEY | action); 1459 } else { 1460 /* regular keys */ 1461 kbd->kb_lastact[keycode] = NOP; 1462 *shiftstate = state; 1463 if (*accents > 0) { 1464 /* make an accented char */ 1465 action = make_accent_char(kbd, action, accents); 1466 if (action == ERRKEY) 1467 return (action); 1468 } 1469 if (state & METAS) 1470 action |= MKEY; 1471 return (action); 1472 } 1473 } 1474 /* NOT REACHED */ 1475 } 1476