kbd.c revision 330897
1/*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer as 12 * the first lines of this file unmodified. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 */ 29 30#include <sys/cdefs.h> 31__FBSDID("$FreeBSD: stable/11/sys/dev/kbd/kbd.c 330897 2018-03-14 03:19:51Z eadler $"); 32 33#include "opt_kbd.h" 34 35#include <sys/param.h> 36#include <sys/systm.h> 37#include <sys/kernel.h> 38#include <sys/malloc.h> 39#include <sys/conf.h> 40#include <sys/fcntl.h> 41#include <sys/poll.h> 42#include <sys/priv.h> 43#include <sys/proc.h> 44#include <sys/selinfo.h> 45#include <sys/sysctl.h> 46#include <sys/uio.h> 47 48#include <sys/kbio.h> 49 50#include <dev/kbd/kbdreg.h> 51 52#define KBD_INDEX(dev) dev2unit(dev) 53 54#define KB_QSIZE 512 55#define KB_BUFSIZE 64 56 57typedef struct genkbd_softc { 58 int gkb_flags; /* flag/status bits */ 59#define KB_ASLEEP (1 << 0) 60 struct selinfo gkb_rsel; 61 char gkb_q[KB_QSIZE]; /* input queue */ 62 unsigned int gkb_q_start; 63 unsigned int gkb_q_length; 64} genkbd_softc_t; 65 66static SLIST_HEAD(, keyboard_driver) keyboard_drivers = 67 SLIST_HEAD_INITIALIZER(keyboard_drivers); 68 69SET_DECLARE(kbddriver_set, const keyboard_driver_t); 70 71/* local arrays */ 72 73/* 74 * We need at least one entry each in order to initialize a keyboard 75 * for the kernel console. The arrays will be increased dynamically 76 * when necessary. 77 */ 78 79static int keyboards = 1; 80static keyboard_t *kbd_ini; 81static keyboard_t **keyboard = &kbd_ini; 82static keyboard_switch_t *kbdsw_ini; 83 keyboard_switch_t **kbdsw = &kbdsw_ini; 84 85static int keymap_restrict_change; 86static SYSCTL_NODE(_hw, OID_AUTO, kbd, CTLFLAG_RD, 0, "kbd"); 87SYSCTL_INT(_hw_kbd, OID_AUTO, keymap_restrict_change, CTLFLAG_RW, 88 &keymap_restrict_change, 0, "restrict ability to change keymap"); 89 90#define ARRAY_DELTA 4 91 92static int 93kbd_realloc_array(void) 94{ 95 keyboard_t **new_kbd; 96 keyboard_switch_t **new_kbdsw; 97 int newsize; 98 int s; 99 100 s = spltty(); 101 newsize = rounddown(keyboards + ARRAY_DELTA, ARRAY_DELTA); 102 new_kbd = malloc(sizeof(*new_kbd)*newsize, M_DEVBUF, M_NOWAIT|M_ZERO); 103 if (new_kbd == NULL) { 104 splx(s); 105 return (ENOMEM); 106 } 107 new_kbdsw = malloc(sizeof(*new_kbdsw)*newsize, M_DEVBUF, 108 M_NOWAIT|M_ZERO); 109 if (new_kbdsw == NULL) { 110 free(new_kbd, M_DEVBUF); 111 splx(s); 112 return (ENOMEM); 113 } 114 bcopy(keyboard, new_kbd, sizeof(*keyboard)*keyboards); 115 bcopy(kbdsw, new_kbdsw, sizeof(*kbdsw)*keyboards); 116 if (keyboards > 1) { 117 free(keyboard, M_DEVBUF); 118 free(kbdsw, M_DEVBUF); 119 } 120 keyboard = new_kbd; 121 kbdsw = new_kbdsw; 122 keyboards = newsize; 123 splx(s); 124 125 if (bootverbose) 126 printf("kbd: new array size %d\n", keyboards); 127 128 return (0); 129} 130 131/* 132 * Low-level keyboard driver functions 133 * Keyboard subdrivers, such as the AT keyboard driver and the USB keyboard 134 * driver, call these functions to initialize the keyboard_t structure 135 * and register it to the virtual keyboard driver `kbd'. 136 */ 137 138/* initialize the keyboard_t structure */ 139void 140kbd_init_struct(keyboard_t *kbd, char *name, int type, int unit, int config, 141 int port, int port_size) 142{ 143 kbd->kb_flags = KB_NO_DEVICE; /* device has not been found */ 144 kbd->kb_name = name; 145 kbd->kb_type = type; 146 kbd->kb_unit = unit; 147 kbd->kb_config = config & ~KB_CONF_PROBE_ONLY; 148 kbd->kb_led = 0; /* unknown */ 149 kbd->kb_io_base = port; 150 kbd->kb_io_size = port_size; 151 kbd->kb_data = NULL; 152 kbd->kb_keymap = NULL; 153 kbd->kb_accentmap = NULL; 154 kbd->kb_fkeytab = NULL; 155 kbd->kb_fkeytab_size = 0; 156 kbd->kb_delay1 = KB_DELAY1; /* these values are advisory only */ 157 kbd->kb_delay2 = KB_DELAY2; 158 kbd->kb_count = 0L; 159 bzero(kbd->kb_lastact, sizeof(kbd->kb_lastact)); 160} 161 162void 163kbd_set_maps(keyboard_t *kbd, keymap_t *keymap, accentmap_t *accmap, 164 fkeytab_t *fkeymap, int fkeymap_size) 165{ 166 kbd->kb_keymap = keymap; 167 kbd->kb_accentmap = accmap; 168 kbd->kb_fkeytab = fkeymap; 169 kbd->kb_fkeytab_size = fkeymap_size; 170} 171 172/* declare a new keyboard driver */ 173int 174kbd_add_driver(keyboard_driver_t *driver) 175{ 176 if (SLIST_NEXT(driver, link)) 177 return (EINVAL); 178 SLIST_INSERT_HEAD(&keyboard_drivers, driver, link); 179 return (0); 180} 181 182int 183kbd_delete_driver(keyboard_driver_t *driver) 184{ 185 SLIST_REMOVE(&keyboard_drivers, driver, keyboard_driver, link); 186 SLIST_NEXT(driver, link) = NULL; 187 return (0); 188} 189 190/* register a keyboard and associate it with a function table */ 191int 192kbd_register(keyboard_t *kbd) 193{ 194 const keyboard_driver_t **list; 195 const keyboard_driver_t *p; 196 keyboard_t *mux; 197 keyboard_info_t ki; 198 int index; 199 200 mux = kbd_get_keyboard(kbd_find_keyboard("kbdmux", -1)); 201 202 for (index = 0; index < keyboards; ++index) { 203 if (keyboard[index] == NULL) 204 break; 205 } 206 if (index >= keyboards) { 207 if (kbd_realloc_array()) 208 return (-1); 209 } 210 211 kbd->kb_index = index; 212 KBD_UNBUSY(kbd); 213 KBD_VALID(kbd); 214 kbd->kb_active = 0; /* disabled until someone calls kbd_enable() */ 215 kbd->kb_token = NULL; 216 kbd->kb_callback.kc_func = NULL; 217 kbd->kb_callback.kc_arg = NULL; 218 219 SLIST_FOREACH(p, &keyboard_drivers, link) { 220 if (strcmp(p->name, kbd->kb_name) == 0) { 221 keyboard[index] = kbd; 222 kbdsw[index] = p->kbdsw; 223 224 if (mux != NULL) { 225 bzero(&ki, sizeof(ki)); 226 strcpy(ki.kb_name, kbd->kb_name); 227 ki.kb_unit = kbd->kb_unit; 228 229 (void)kbdd_ioctl(mux, KBADDKBD, (caddr_t) &ki); 230 } 231 232 return (index); 233 } 234 } 235 SET_FOREACH(list, kbddriver_set) { 236 p = *list; 237 if (strcmp(p->name, kbd->kb_name) == 0) { 238 keyboard[index] = kbd; 239 kbdsw[index] = p->kbdsw; 240 241 if (mux != NULL) { 242 bzero(&ki, sizeof(ki)); 243 strcpy(ki.kb_name, kbd->kb_name); 244 ki.kb_unit = kbd->kb_unit; 245 246 (void)kbdd_ioctl(mux, KBADDKBD, (caddr_t) &ki); 247 } 248 249 return (index); 250 } 251 } 252 253 return (-1); 254} 255 256int 257kbd_unregister(keyboard_t *kbd) 258{ 259 int error; 260 int s; 261 262 if ((kbd->kb_index < 0) || (kbd->kb_index >= keyboards)) 263 return (ENOENT); 264 if (keyboard[kbd->kb_index] != kbd) 265 return (ENOENT); 266 267 s = spltty(); 268 if (KBD_IS_BUSY(kbd)) { 269 error = (*kbd->kb_callback.kc_func)(kbd, KBDIO_UNLOADING, 270 kbd->kb_callback.kc_arg); 271 if (error) { 272 splx(s); 273 return (error); 274 } 275 if (KBD_IS_BUSY(kbd)) { 276 splx(s); 277 return (EBUSY); 278 } 279 } 280 KBD_INVALID(kbd); 281 keyboard[kbd->kb_index] = NULL; 282 kbdsw[kbd->kb_index] = NULL; 283 284 splx(s); 285 return (0); 286} 287 288/* find a function table by the driver name */ 289keyboard_switch_t * 290kbd_get_switch(char *driver) 291{ 292 const keyboard_driver_t **list; 293 const keyboard_driver_t *p; 294 295 SLIST_FOREACH(p, &keyboard_drivers, link) { 296 if (strcmp(p->name, driver) == 0) 297 return (p->kbdsw); 298 } 299 SET_FOREACH(list, kbddriver_set) { 300 p = *list; 301 if (strcmp(p->name, driver) == 0) 302 return (p->kbdsw); 303 } 304 305 return (NULL); 306} 307 308/* 309 * Keyboard client functions 310 * Keyboard clients, such as the console driver `syscons' and the keyboard 311 * cdev driver, use these functions to claim and release a keyboard for 312 * exclusive use. 313 */ 314 315/* 316 * find the keyboard specified by a driver name and a unit number 317 * starting at given index 318 */ 319int 320kbd_find_keyboard2(char *driver, int unit, int index) 321{ 322 int i; 323 324 if ((index < 0) || (index >= keyboards)) 325 return (-1); 326 327 for (i = index; i < keyboards; ++i) { 328 if (keyboard[i] == NULL) 329 continue; 330 if (!KBD_IS_VALID(keyboard[i])) 331 continue; 332 if (strcmp("*", driver) && strcmp(keyboard[i]->kb_name, driver)) 333 continue; 334 if ((unit != -1) && (keyboard[i]->kb_unit != unit)) 335 continue; 336 return (i); 337 } 338 339 return (-1); 340} 341 342/* find the keyboard specified by a driver name and a unit number */ 343int 344kbd_find_keyboard(char *driver, int unit) 345{ 346 return (kbd_find_keyboard2(driver, unit, 0)); 347} 348 349/* allocate a keyboard */ 350int 351kbd_allocate(char *driver, int unit, void *id, kbd_callback_func_t *func, 352 void *arg) 353{ 354 int index; 355 int s; 356 357 if (func == NULL) 358 return (-1); 359 360 s = spltty(); 361 index = kbd_find_keyboard(driver, unit); 362 if (index >= 0) { 363 if (KBD_IS_BUSY(keyboard[index])) { 364 splx(s); 365 return (-1); 366 } 367 keyboard[index]->kb_token = id; 368 KBD_BUSY(keyboard[index]); 369 keyboard[index]->kb_callback.kc_func = func; 370 keyboard[index]->kb_callback.kc_arg = arg; 371 kbdd_clear_state(keyboard[index]); 372 } 373 splx(s); 374 return (index); 375} 376 377int 378kbd_release(keyboard_t *kbd, void *id) 379{ 380 int error; 381 int s; 382 383 s = spltty(); 384 if (!KBD_IS_VALID(kbd) || !KBD_IS_BUSY(kbd)) { 385 error = EINVAL; 386 } else if (kbd->kb_token != id) { 387 error = EPERM; 388 } else { 389 kbd->kb_token = NULL; 390 KBD_UNBUSY(kbd); 391 kbd->kb_callback.kc_func = NULL; 392 kbd->kb_callback.kc_arg = NULL; 393 kbdd_clear_state(kbd); 394 error = 0; 395 } 396 splx(s); 397 return (error); 398} 399 400int 401kbd_change_callback(keyboard_t *kbd, void *id, kbd_callback_func_t *func, 402 void *arg) 403{ 404 int error; 405 int s; 406 407 s = spltty(); 408 if (!KBD_IS_VALID(kbd) || !KBD_IS_BUSY(kbd)) { 409 error = EINVAL; 410 } else if (kbd->kb_token != id) { 411 error = EPERM; 412 } else if (func == NULL) { 413 error = EINVAL; 414 } else { 415 kbd->kb_callback.kc_func = func; 416 kbd->kb_callback.kc_arg = arg; 417 error = 0; 418 } 419 splx(s); 420 return (error); 421} 422 423/* get a keyboard structure */ 424keyboard_t * 425kbd_get_keyboard(int index) 426{ 427 if ((index < 0) || (index >= keyboards)) 428 return (NULL); 429 if (keyboard[index] == NULL) 430 return (NULL); 431 if (!KBD_IS_VALID(keyboard[index])) 432 return (NULL); 433 return (keyboard[index]); 434} 435 436/* 437 * The back door for the console driver; configure keyboards 438 * This function is for the kernel console to initialize keyboards 439 * at very early stage. 440 */ 441 442int 443kbd_configure(int flags) 444{ 445 const keyboard_driver_t **list; 446 const keyboard_driver_t *p; 447 448 SLIST_FOREACH(p, &keyboard_drivers, link) { 449 if (p->configure != NULL) 450 (*p->configure)(flags); 451 } 452 SET_FOREACH(list, kbddriver_set) { 453 p = *list; 454 if (p->configure != NULL) 455 (*p->configure)(flags); 456 } 457 458 return (0); 459} 460 461#ifdef KBD_INSTALL_CDEV 462 463/* 464 * Virtual keyboard cdev driver functions 465 * The virtual keyboard driver dispatches driver functions to 466 * appropriate subdrivers. 467 */ 468 469#define KBD_UNIT(dev) dev2unit(dev) 470 471static d_open_t genkbdopen; 472static d_close_t genkbdclose; 473static d_read_t genkbdread; 474static d_write_t genkbdwrite; 475static d_ioctl_t genkbdioctl; 476static d_poll_t genkbdpoll; 477 478 479static struct cdevsw kbd_cdevsw = { 480 .d_version = D_VERSION, 481 .d_flags = D_NEEDGIANT, 482 .d_open = genkbdopen, 483 .d_close = genkbdclose, 484 .d_read = genkbdread, 485 .d_write = genkbdwrite, 486 .d_ioctl = genkbdioctl, 487 .d_poll = genkbdpoll, 488 .d_name = "kbd", 489}; 490 491int 492kbd_attach(keyboard_t *kbd) 493{ 494 495 if (kbd->kb_index >= keyboards) 496 return (EINVAL); 497 if (keyboard[kbd->kb_index] != kbd) 498 return (EINVAL); 499 500 kbd->kb_dev = make_dev(&kbd_cdevsw, kbd->kb_index, UID_ROOT, GID_WHEEL, 501 0600, "%s%r", kbd->kb_name, kbd->kb_unit); 502 make_dev_alias(kbd->kb_dev, "kbd%r", kbd->kb_index); 503 kbd->kb_dev->si_drv1 = malloc(sizeof(genkbd_softc_t), M_DEVBUF, 504 M_WAITOK | M_ZERO); 505 printf("kbd%d at %s%d\n", kbd->kb_index, kbd->kb_name, kbd->kb_unit); 506 return (0); 507} 508 509int 510kbd_detach(keyboard_t *kbd) 511{ 512 513 if (kbd->kb_index >= keyboards) 514 return (EINVAL); 515 if (keyboard[kbd->kb_index] != kbd) 516 return (EINVAL); 517 518 free(kbd->kb_dev->si_drv1, M_DEVBUF); 519 destroy_dev(kbd->kb_dev); 520 521 return (0); 522} 523 524/* 525 * Generic keyboard cdev driver functions 526 * Keyboard subdrivers may call these functions to implement common 527 * driver functions. 528 */ 529 530static void 531genkbd_putc(genkbd_softc_t *sc, char c) 532{ 533 unsigned int p; 534 535 if (sc->gkb_q_length == KB_QSIZE) 536 return; 537 538 p = (sc->gkb_q_start + sc->gkb_q_length) % KB_QSIZE; 539 sc->gkb_q[p] = c; 540 sc->gkb_q_length++; 541} 542 543static size_t 544genkbd_getc(genkbd_softc_t *sc, char *buf, size_t len) 545{ 546 547 /* Determine copy size. */ 548 if (sc->gkb_q_length == 0) 549 return (0); 550 if (len >= sc->gkb_q_length) 551 len = sc->gkb_q_length; 552 if (len >= KB_QSIZE - sc->gkb_q_start) 553 len = KB_QSIZE - sc->gkb_q_start; 554 555 /* Copy out data and progress offset. */ 556 memcpy(buf, sc->gkb_q + sc->gkb_q_start, len); 557 sc->gkb_q_start = (sc->gkb_q_start + len) % KB_QSIZE; 558 sc->gkb_q_length -= len; 559 560 return (len); 561} 562 563static kbd_callback_func_t genkbd_event; 564 565static int 566genkbdopen(struct cdev *dev, int mode, int flag, struct thread *td) 567{ 568 keyboard_t *kbd; 569 genkbd_softc_t *sc; 570 int s; 571 int i; 572 573 s = spltty(); 574 sc = dev->si_drv1; 575 kbd = kbd_get_keyboard(KBD_INDEX(dev)); 576 if ((sc == NULL) || (kbd == NULL) || !KBD_IS_VALID(kbd)) { 577 splx(s); 578 return (ENXIO); 579 } 580 i = kbd_allocate(kbd->kb_name, kbd->kb_unit, sc, 581 genkbd_event, (void *)sc); 582 if (i < 0) { 583 splx(s); 584 return (EBUSY); 585 } 586 /* assert(i == kbd->kb_index) */ 587 /* assert(kbd == kbd_get_keyboard(i)) */ 588 589 /* 590 * NOTE: even when we have successfully claimed a keyboard, 591 * the device may still be missing (!KBD_HAS_DEVICE(kbd)). 592 */ 593 594 sc->gkb_q_length = 0; 595 splx(s); 596 597 return (0); 598} 599 600static int 601genkbdclose(struct cdev *dev, int mode, int flag, struct thread *td) 602{ 603 keyboard_t *kbd; 604 genkbd_softc_t *sc; 605 int s; 606 607 /* 608 * NOTE: the device may have already become invalid. 609 * kbd == NULL || !KBD_IS_VALID(kbd) 610 */ 611 s = spltty(); 612 sc = dev->si_drv1; 613 kbd = kbd_get_keyboard(KBD_INDEX(dev)); 614 if ((sc == NULL) || (kbd == NULL) || !KBD_IS_VALID(kbd)) { 615 /* XXX: we shall be forgiving and don't report error... */ 616 } else { 617 kbd_release(kbd, (void *)sc); 618 } 619 splx(s); 620 return (0); 621} 622 623static int 624genkbdread(struct cdev *dev, struct uio *uio, int flag) 625{ 626 keyboard_t *kbd; 627 genkbd_softc_t *sc; 628 u_char buffer[KB_BUFSIZE]; 629 int len; 630 int error; 631 int s; 632 633 /* wait for input */ 634 s = spltty(); 635 sc = dev->si_drv1; 636 kbd = kbd_get_keyboard(KBD_INDEX(dev)); 637 if ((sc == NULL) || (kbd == NULL) || !KBD_IS_VALID(kbd)) { 638 splx(s); 639 return (ENXIO); 640 } 641 while (sc->gkb_q_length == 0) { 642 if (flag & O_NONBLOCK) { 643 splx(s); 644 return (EWOULDBLOCK); 645 } 646 sc->gkb_flags |= KB_ASLEEP; 647 error = tsleep(sc, PZERO | PCATCH, "kbdrea", 0); 648 kbd = kbd_get_keyboard(KBD_INDEX(dev)); 649 if ((kbd == NULL) || !KBD_IS_VALID(kbd)) { 650 splx(s); 651 return (ENXIO); /* our keyboard has gone... */ 652 } 653 if (error) { 654 sc->gkb_flags &= ~KB_ASLEEP; 655 splx(s); 656 return (error); 657 } 658 } 659 splx(s); 660 661 /* copy as much input as possible */ 662 error = 0; 663 while (uio->uio_resid > 0) { 664 len = imin(uio->uio_resid, sizeof(buffer)); 665 len = genkbd_getc(sc, buffer, len); 666 if (len <= 0) 667 break; 668 error = uiomove(buffer, len, uio); 669 if (error) 670 break; 671 } 672 673 return (error); 674} 675 676static int 677genkbdwrite(struct cdev *dev, struct uio *uio, int flag) 678{ 679 keyboard_t *kbd; 680 681 kbd = kbd_get_keyboard(KBD_INDEX(dev)); 682 if ((kbd == NULL) || !KBD_IS_VALID(kbd)) 683 return (ENXIO); 684 return (ENODEV); 685} 686 687static int 688genkbdioctl(struct cdev *dev, u_long cmd, caddr_t arg, int flag, struct thread *td) 689{ 690 keyboard_t *kbd; 691 int error; 692 693 kbd = kbd_get_keyboard(KBD_INDEX(dev)); 694 if ((kbd == NULL) || !KBD_IS_VALID(kbd)) 695 return (ENXIO); 696 error = kbdd_ioctl(kbd, cmd, arg); 697 if (error == ENOIOCTL) 698 error = ENODEV; 699 return (error); 700} 701 702static int 703genkbdpoll(struct cdev *dev, int events, struct thread *td) 704{ 705 keyboard_t *kbd; 706 genkbd_softc_t *sc; 707 int revents; 708 int s; 709 710 revents = 0; 711 s = spltty(); 712 sc = dev->si_drv1; 713 kbd = kbd_get_keyboard(KBD_INDEX(dev)); 714 if ((sc == NULL) || (kbd == NULL) || !KBD_IS_VALID(kbd)) { 715 revents = POLLHUP; /* the keyboard has gone */ 716 } else if (events & (POLLIN | POLLRDNORM)) { 717 if (sc->gkb_q_length > 0) 718 revents = events & (POLLIN | POLLRDNORM); 719 else 720 selrecord(td, &sc->gkb_rsel); 721 } 722 splx(s); 723 return (revents); 724} 725 726static int 727genkbd_event(keyboard_t *kbd, int event, void *arg) 728{ 729 genkbd_softc_t *sc; 730 size_t len; 731 u_char *cp; 732 int mode; 733 u_int c; 734 735 /* assert(KBD_IS_VALID(kbd)) */ 736 sc = (genkbd_softc_t *)arg; 737 738 switch (event) { 739 case KBDIO_KEYINPUT: 740 break; 741 case KBDIO_UNLOADING: 742 /* the keyboard is going... */ 743 kbd_release(kbd, (void *)sc); 744 if (sc->gkb_flags & KB_ASLEEP) { 745 sc->gkb_flags &= ~KB_ASLEEP; 746 wakeup(sc); 747 } 748 selwakeuppri(&sc->gkb_rsel, PZERO); 749 return (0); 750 default: 751 return (EINVAL); 752 } 753 754 /* obtain the current key input mode */ 755 if (kbdd_ioctl(kbd, KDGKBMODE, (caddr_t)&mode)) 756 mode = K_XLATE; 757 758 /* read all pending input */ 759 while (kbdd_check_char(kbd)) { 760 c = kbdd_read_char(kbd, FALSE); 761 if (c == NOKEY) 762 continue; 763 if (c == ERRKEY) /* XXX: ring bell? */ 764 continue; 765 if (!KBD_IS_BUSY(kbd)) 766 /* the device is not open, discard the input */ 767 continue; 768 769 /* store the byte as is for K_RAW and K_CODE modes */ 770 if (mode != K_XLATE) { 771 genkbd_putc(sc, KEYCHAR(c)); 772 continue; 773 } 774 775 /* K_XLATE */ 776 if (c & RELKEY) /* key release is ignored */ 777 continue; 778 779 /* process special keys; most of them are just ignored... */ 780 if (c & SPCLKEY) { 781 switch (KEYCHAR(c)) { 782 default: 783 /* ignore them... */ 784 continue; 785 case BTAB: /* a backtab: ESC [ Z */ 786 genkbd_putc(sc, 0x1b); 787 genkbd_putc(sc, '['); 788 genkbd_putc(sc, 'Z'); 789 continue; 790 } 791 } 792 793 /* normal chars, normal chars with the META, function keys */ 794 switch (KEYFLAGS(c)) { 795 case 0: /* a normal char */ 796 genkbd_putc(sc, KEYCHAR(c)); 797 break; 798 case MKEY: /* the META flag: prepend ESC */ 799 genkbd_putc(sc, 0x1b); 800 genkbd_putc(sc, KEYCHAR(c)); 801 break; 802 case FKEY | SPCLKEY: /* a function key, return string */ 803 cp = kbdd_get_fkeystr(kbd, KEYCHAR(c), &len); 804 if (cp != NULL) { 805 while (len-- > 0) 806 genkbd_putc(sc, *cp++); 807 } 808 break; 809 } 810 } 811 812 /* wake up sleeping/polling processes */ 813 if (sc->gkb_q_length > 0) { 814 if (sc->gkb_flags & KB_ASLEEP) { 815 sc->gkb_flags &= ~KB_ASLEEP; 816 wakeup(sc); 817 } 818 selwakeuppri(&sc->gkb_rsel, PZERO); 819 } 820 821 return (0); 822} 823 824#endif /* KBD_INSTALL_CDEV */ 825 826/* 827 * Generic low-level keyboard functions 828 * The low-level functions in the keyboard subdriver may use these 829 * functions. 830 */ 831 832#ifndef KBD_DISABLE_KEYMAP_LOAD 833static int key_change_ok(struct keyent_t *, struct keyent_t *, struct thread *); 834static int keymap_change_ok(keymap_t *, keymap_t *, struct thread *); 835static int accent_change_ok(accentmap_t *, accentmap_t *, struct thread *); 836static int fkey_change_ok(fkeytab_t *, fkeyarg_t *, struct thread *); 837#endif 838 839int 840genkbd_commonioctl(keyboard_t *kbd, u_long cmd, caddr_t arg) 841{ 842 keymap_t *mapp; 843 okeymap_t *omapp; 844 keyarg_t *keyp; 845 fkeyarg_t *fkeyp; 846 int s; 847 int i, j; 848 int error; 849 850 s = spltty(); 851 switch (cmd) { 852 853 case KDGKBINFO: /* get keyboard information */ 854 ((keyboard_info_t *)arg)->kb_index = kbd->kb_index; 855 i = imin(strlen(kbd->kb_name) + 1, 856 sizeof(((keyboard_info_t *)arg)->kb_name)); 857 bcopy(kbd->kb_name, ((keyboard_info_t *)arg)->kb_name, i); 858 ((keyboard_info_t *)arg)->kb_unit = kbd->kb_unit; 859 ((keyboard_info_t *)arg)->kb_type = kbd->kb_type; 860 ((keyboard_info_t *)arg)->kb_config = kbd->kb_config; 861 ((keyboard_info_t *)arg)->kb_flags = kbd->kb_flags; 862 break; 863 864 case KDGKBTYPE: /* get keyboard type */ 865 *(int *)arg = kbd->kb_type; 866 break; 867 868 case KDGETREPEAT: /* get keyboard repeat rate */ 869 ((int *)arg)[0] = kbd->kb_delay1; 870 ((int *)arg)[1] = kbd->kb_delay2; 871 break; 872 873 case GIO_KEYMAP: /* get keyboard translation table */ 874 error = copyout(kbd->kb_keymap, *(void **)arg, 875 sizeof(keymap_t)); 876 splx(s); 877 return (error); 878 case OGIO_KEYMAP: /* get keyboard translation table (compat) */ 879 mapp = kbd->kb_keymap; 880 omapp = (okeymap_t *)arg; 881 omapp->n_keys = mapp->n_keys; 882 for (i = 0; i < NUM_KEYS; i++) { 883 for (j = 0; j < NUM_STATES; j++) 884 omapp->key[i].map[j] = 885 mapp->key[i].map[j]; 886 omapp->key[i].spcl = mapp->key[i].spcl; 887 omapp->key[i].flgs = mapp->key[i].flgs; 888 } 889 break; 890 case PIO_KEYMAP: /* set keyboard translation table */ 891 case OPIO_KEYMAP: /* set keyboard translation table (compat) */ 892#ifndef KBD_DISABLE_KEYMAP_LOAD 893 mapp = malloc(sizeof *mapp, M_TEMP, M_WAITOK); 894 if (cmd == OPIO_KEYMAP) { 895 omapp = (okeymap_t *)arg; 896 mapp->n_keys = omapp->n_keys; 897 for (i = 0; i < NUM_KEYS; i++) { 898 for (j = 0; j < NUM_STATES; j++) 899 mapp->key[i].map[j] = 900 omapp->key[i].map[j]; 901 mapp->key[i].spcl = omapp->key[i].spcl; 902 mapp->key[i].flgs = omapp->key[i].flgs; 903 } 904 } else { 905 error = copyin(*(void **)arg, mapp, sizeof *mapp); 906 if (error != 0) { 907 splx(s); 908 free(mapp, M_TEMP); 909 return (error); 910 } 911 } 912 913 error = keymap_change_ok(kbd->kb_keymap, mapp, curthread); 914 if (error != 0) { 915 splx(s); 916 free(mapp, M_TEMP); 917 return (error); 918 } 919 bzero(kbd->kb_accentmap, sizeof(*kbd->kb_accentmap)); 920 bcopy(mapp, kbd->kb_keymap, sizeof(*kbd->kb_keymap)); 921 free(mapp, M_TEMP); 922 break; 923#else 924 splx(s); 925 return (ENODEV); 926#endif 927 928 case GIO_KEYMAPENT: /* get keyboard translation table entry */ 929 keyp = (keyarg_t *)arg; 930 if (keyp->keynum >= sizeof(kbd->kb_keymap->key) / 931 sizeof(kbd->kb_keymap->key[0])) { 932 splx(s); 933 return (EINVAL); 934 } 935 bcopy(&kbd->kb_keymap->key[keyp->keynum], &keyp->key, 936 sizeof(keyp->key)); 937 break; 938 case PIO_KEYMAPENT: /* set keyboard translation table entry */ 939#ifndef KBD_DISABLE_KEYMAP_LOAD 940 keyp = (keyarg_t *)arg; 941 if (keyp->keynum >= sizeof(kbd->kb_keymap->key) / 942 sizeof(kbd->kb_keymap->key[0])) { 943 splx(s); 944 return (EINVAL); 945 } 946 error = key_change_ok(&kbd->kb_keymap->key[keyp->keynum], 947 &keyp->key, curthread); 948 if (error != 0) { 949 splx(s); 950 return (error); 951 } 952 bcopy(&keyp->key, &kbd->kb_keymap->key[keyp->keynum], 953 sizeof(keyp->key)); 954 break; 955#else 956 splx(s); 957 return (ENODEV); 958#endif 959 960 case GIO_DEADKEYMAP: /* get accent key translation table */ 961 bcopy(kbd->kb_accentmap, arg, sizeof(*kbd->kb_accentmap)); 962 break; 963 case PIO_DEADKEYMAP: /* set accent key translation table */ 964#ifndef KBD_DISABLE_KEYMAP_LOAD 965 error = accent_change_ok(kbd->kb_accentmap, 966 (accentmap_t *)arg, curthread); 967 if (error != 0) { 968 splx(s); 969 return (error); 970 } 971 bcopy(arg, kbd->kb_accentmap, sizeof(*kbd->kb_accentmap)); 972 break; 973#else 974 splx(s); 975 return (ENODEV); 976#endif 977 978 case GETFKEY: /* get functionkey string */ 979 fkeyp = (fkeyarg_t *)arg; 980 if (fkeyp->keynum >= kbd->kb_fkeytab_size) { 981 splx(s); 982 return (EINVAL); 983 } 984 bcopy(kbd->kb_fkeytab[fkeyp->keynum].str, fkeyp->keydef, 985 kbd->kb_fkeytab[fkeyp->keynum].len); 986 fkeyp->flen = kbd->kb_fkeytab[fkeyp->keynum].len; 987 break; 988 case SETFKEY: /* set functionkey string */ 989#ifndef KBD_DISABLE_KEYMAP_LOAD 990 fkeyp = (fkeyarg_t *)arg; 991 if (fkeyp->keynum >= kbd->kb_fkeytab_size) { 992 splx(s); 993 return (EINVAL); 994 } 995 error = fkey_change_ok(&kbd->kb_fkeytab[fkeyp->keynum], 996 fkeyp, curthread); 997 if (error != 0) { 998 splx(s); 999 return (error); 1000 } 1001 kbd->kb_fkeytab[fkeyp->keynum].len = min(fkeyp->flen, MAXFK); 1002 bcopy(fkeyp->keydef, kbd->kb_fkeytab[fkeyp->keynum].str, 1003 kbd->kb_fkeytab[fkeyp->keynum].len); 1004 break; 1005#else 1006 splx(s); 1007 return (ENODEV); 1008#endif 1009 1010 default: 1011 splx(s); 1012 return (ENOIOCTL); 1013 } 1014 1015 splx(s); 1016 return (0); 1017} 1018 1019#ifndef KBD_DISABLE_KEYMAP_LOAD 1020#define RESTRICTED_KEY(key, i) \ 1021 ((key->spcl & (0x80 >> i)) && \ 1022 (key->map[i] == RBT || key->map[i] == SUSP || \ 1023 key->map[i] == STBY || key->map[i] == DBG || \ 1024 key->map[i] == PNC || key->map[i] == HALT || \ 1025 key->map[i] == PDWN)) 1026 1027static int 1028key_change_ok(struct keyent_t *oldkey, struct keyent_t *newkey, struct thread *td) 1029{ 1030 int i; 1031 1032 /* Low keymap_restrict_change means any changes are OK. */ 1033 if (keymap_restrict_change <= 0) 1034 return (0); 1035 1036 /* High keymap_restrict_change means only root can change the keymap. */ 1037 if (keymap_restrict_change >= 2) { 1038 for (i = 0; i < NUM_STATES; i++) 1039 if (oldkey->map[i] != newkey->map[i]) 1040 return priv_check(td, PRIV_KEYBOARD); 1041 if (oldkey->spcl != newkey->spcl) 1042 return priv_check(td, PRIV_KEYBOARD); 1043 if (oldkey->flgs != newkey->flgs) 1044 return priv_check(td, PRIV_KEYBOARD); 1045 return (0); 1046 } 1047 1048 /* Otherwise we have to see if any special keys are being changed. */ 1049 for (i = 0; i < NUM_STATES; i++) { 1050 /* 1051 * If either the oldkey or the newkey action is restricted 1052 * then we must make sure that the action doesn't change. 1053 */ 1054 if (!RESTRICTED_KEY(oldkey, i) && !RESTRICTED_KEY(newkey, i)) 1055 continue; 1056 if ((oldkey->spcl & (0x80 >> i)) == (newkey->spcl & (0x80 >> i)) 1057 && oldkey->map[i] == newkey->map[i]) 1058 continue; 1059 return priv_check(td, PRIV_KEYBOARD); 1060 } 1061 1062 return (0); 1063} 1064 1065static int 1066keymap_change_ok(keymap_t *oldmap, keymap_t *newmap, struct thread *td) 1067{ 1068 int keycode, error; 1069 1070 for (keycode = 0; keycode < NUM_KEYS; keycode++) { 1071 if ((error = key_change_ok(&oldmap->key[keycode], 1072 &newmap->key[keycode], td)) != 0) 1073 return (error); 1074 } 1075 return (0); 1076} 1077 1078static int 1079accent_change_ok(accentmap_t *oldmap, accentmap_t *newmap, struct thread *td) 1080{ 1081 struct acc_t *oldacc, *newacc; 1082 int accent, i; 1083 1084 if (keymap_restrict_change <= 2) 1085 return (0); 1086 1087 if (oldmap->n_accs != newmap->n_accs) 1088 return priv_check(td, PRIV_KEYBOARD); 1089 1090 for (accent = 0; accent < oldmap->n_accs; accent++) { 1091 oldacc = &oldmap->acc[accent]; 1092 newacc = &newmap->acc[accent]; 1093 if (oldacc->accchar != newacc->accchar) 1094 return priv_check(td, PRIV_KEYBOARD); 1095 for (i = 0; i < NUM_ACCENTCHARS; ++i) { 1096 if (oldacc->map[i][0] != newacc->map[i][0]) 1097 return priv_check(td, PRIV_KEYBOARD); 1098 if (oldacc->map[i][0] == 0) /* end of table */ 1099 break; 1100 if (oldacc->map[i][1] != newacc->map[i][1]) 1101 return priv_check(td, PRIV_KEYBOARD); 1102 } 1103 } 1104 1105 return (0); 1106} 1107 1108static int 1109fkey_change_ok(fkeytab_t *oldkey, fkeyarg_t *newkey, struct thread *td) 1110{ 1111 if (keymap_restrict_change <= 3) 1112 return (0); 1113 1114 if (oldkey->len != newkey->flen || 1115 bcmp(oldkey->str, newkey->keydef, oldkey->len) != 0) 1116 return priv_check(td, PRIV_KEYBOARD); 1117 1118 return (0); 1119} 1120#endif 1121 1122/* get a pointer to the string associated with the given function key */ 1123u_char * 1124genkbd_get_fkeystr(keyboard_t *kbd, int fkey, size_t *len) 1125{ 1126 if (kbd == NULL) 1127 return (NULL); 1128 fkey -= F_FN; 1129 if (fkey > kbd->kb_fkeytab_size) 1130 return (NULL); 1131 *len = kbd->kb_fkeytab[fkey].len; 1132 return (kbd->kb_fkeytab[fkey].str); 1133} 1134 1135/* diagnostic dump */ 1136static char * 1137get_kbd_type_name(int type) 1138{ 1139 static struct { 1140 int type; 1141 char *name; 1142 } name_table[] = { 1143 { KB_84, "AT 84" }, 1144 { KB_101, "AT 101/102" }, 1145 { KB_OTHER, "generic" }, 1146 }; 1147 int i; 1148 1149 for (i = 0; i < nitems(name_table); ++i) { 1150 if (type == name_table[i].type) 1151 return (name_table[i].name); 1152 } 1153 return ("unknown"); 1154} 1155 1156void 1157genkbd_diag(keyboard_t *kbd, int level) 1158{ 1159 if (level > 0) { 1160 printf("kbd%d: %s%d, %s (%d), config:0x%x, flags:0x%x", 1161 kbd->kb_index, kbd->kb_name, kbd->kb_unit, 1162 get_kbd_type_name(kbd->kb_type), kbd->kb_type, 1163 kbd->kb_config, kbd->kb_flags); 1164 if (kbd->kb_io_base > 0) 1165 printf(", port:0x%x-0x%x", kbd->kb_io_base, 1166 kbd->kb_io_base + kbd->kb_io_size - 1); 1167 printf("\n"); 1168 } 1169} 1170 1171#define set_lockkey_state(k, s, l) \ 1172 if (!((s) & l ## DOWN)) { \ 1173 int i; \ 1174 (s) |= l ## DOWN; \ 1175 (s) ^= l ## ED; \ 1176 i = (s) & LOCK_MASK; \ 1177 (void)kbdd_ioctl((k), KDSETLED, (caddr_t)&i); \ 1178 } 1179 1180static u_int 1181save_accent_key(keyboard_t *kbd, u_int key, int *accents) 1182{ 1183 int i; 1184 1185 /* make an index into the accent map */ 1186 i = key - F_ACC + 1; 1187 if ((i > kbd->kb_accentmap->n_accs) 1188 || (kbd->kb_accentmap->acc[i - 1].accchar == 0)) { 1189 /* the index is out of range or pointing to an empty entry */ 1190 *accents = 0; 1191 return (ERRKEY); 1192 } 1193 1194 /* 1195 * If the same accent key has been hit twice, produce the accent 1196 * char itself. 1197 */ 1198 if (i == *accents) { 1199 key = kbd->kb_accentmap->acc[i - 1].accchar; 1200 *accents = 0; 1201 return (key); 1202 } 1203 1204 /* remember the index and wait for the next key */ 1205 *accents = i; 1206 return (NOKEY); 1207} 1208 1209static u_int 1210make_accent_char(keyboard_t *kbd, u_int ch, int *accents) 1211{ 1212 struct acc_t *acc; 1213 int i; 1214 1215 acc = &kbd->kb_accentmap->acc[*accents - 1]; 1216 *accents = 0; 1217 1218 /* 1219 * If the accent key is followed by the space key, 1220 * produce the accent char itself. 1221 */ 1222 if (ch == ' ') 1223 return (acc->accchar); 1224 1225 /* scan the accent map */ 1226 for (i = 0; i < NUM_ACCENTCHARS; ++i) { 1227 if (acc->map[i][0] == 0) /* end of table */ 1228 break; 1229 if (acc->map[i][0] == ch) 1230 return (acc->map[i][1]); 1231 } 1232 /* this char cannot be accented... */ 1233 return (ERRKEY); 1234} 1235 1236int 1237genkbd_keyaction(keyboard_t *kbd, int keycode, int up, int *shiftstate, 1238 int *accents) 1239{ 1240 struct keyent_t *key; 1241 int state = *shiftstate; 1242 int action; 1243 int f; 1244 int i; 1245 1246 i = keycode; 1247 f = state & (AGRS | ALKED); 1248 if ((f == AGRS1) || (f == AGRS2) || (f == ALKED)) 1249 i += ALTGR_OFFSET; 1250 key = &kbd->kb_keymap->key[i]; 1251 i = ((state & SHIFTS) ? 1 : 0) 1252 | ((state & CTLS) ? 2 : 0) 1253 | ((state & ALTS) ? 4 : 0); 1254 if (((key->flgs & FLAG_LOCK_C) && (state & CLKED)) 1255 || ((key->flgs & FLAG_LOCK_N) && (state & NLKED)) ) 1256 i ^= 1; 1257 1258 if (up) { /* break: key released */ 1259 action = kbd->kb_lastact[keycode]; 1260 kbd->kb_lastact[keycode] = NOP; 1261 switch (action) { 1262 case LSHA: 1263 if (state & SHIFTAON) { 1264 set_lockkey_state(kbd, state, ALK); 1265 state &= ~ALKDOWN; 1266 } 1267 action = LSH; 1268 /* FALL THROUGH */ 1269 case LSH: 1270 state &= ~SHIFTS1; 1271 break; 1272 case RSHA: 1273 if (state & SHIFTAON) { 1274 set_lockkey_state(kbd, state, ALK); 1275 state &= ~ALKDOWN; 1276 } 1277 action = RSH; 1278 /* FALL THROUGH */ 1279 case RSH: 1280 state &= ~SHIFTS2; 1281 break; 1282 case LCTRA: 1283 if (state & SHIFTAON) { 1284 set_lockkey_state(kbd, state, ALK); 1285 state &= ~ALKDOWN; 1286 } 1287 action = LCTR; 1288 /* FALL THROUGH */ 1289 case LCTR: 1290 state &= ~CTLS1; 1291 break; 1292 case RCTRA: 1293 if (state & SHIFTAON) { 1294 set_lockkey_state(kbd, state, ALK); 1295 state &= ~ALKDOWN; 1296 } 1297 action = RCTR; 1298 /* FALL THROUGH */ 1299 case RCTR: 1300 state &= ~CTLS2; 1301 break; 1302 case LALTA: 1303 if (state & SHIFTAON) { 1304 set_lockkey_state(kbd, state, ALK); 1305 state &= ~ALKDOWN; 1306 } 1307 action = LALT; 1308 /* FALL THROUGH */ 1309 case LALT: 1310 state &= ~ALTS1; 1311 break; 1312 case RALTA: 1313 if (state & SHIFTAON) { 1314 set_lockkey_state(kbd, state, ALK); 1315 state &= ~ALKDOWN; 1316 } 1317 action = RALT; 1318 /* FALL THROUGH */ 1319 case RALT: 1320 state &= ~ALTS2; 1321 break; 1322 case ASH: 1323 state &= ~AGRS1; 1324 break; 1325 case META: 1326 state &= ~METAS1; 1327 break; 1328 case NLK: 1329 state &= ~NLKDOWN; 1330 break; 1331 case CLK: 1332#ifndef PC98 1333 state &= ~CLKDOWN; 1334#else 1335 state &= ~CLKED; 1336 i = state & LOCK_MASK; 1337 (void)kbdd_ioctl(kbd, KDSETLED, (caddr_t)&i); 1338#endif 1339 break; 1340 case SLK: 1341 state &= ~SLKDOWN; 1342 break; 1343 case ALK: 1344 state &= ~ALKDOWN; 1345 break; 1346 case NOP: 1347 /* release events of regular keys are not reported */ 1348 *shiftstate &= ~SHIFTAON; 1349 return (NOKEY); 1350 } 1351 *shiftstate = state & ~SHIFTAON; 1352 return (SPCLKEY | RELKEY | action); 1353 } else { /* make: key pressed */ 1354 action = key->map[i]; 1355 state &= ~SHIFTAON; 1356 if (key->spcl & (0x80 >> i)) { 1357 /* special keys */ 1358 if (kbd->kb_lastact[keycode] == NOP) 1359 kbd->kb_lastact[keycode] = action; 1360 if (kbd->kb_lastact[keycode] != action) 1361 action = NOP; 1362 switch (action) { 1363 /* LOCKING KEYS */ 1364 case NLK: 1365 set_lockkey_state(kbd, state, NLK); 1366 break; 1367 case CLK: 1368#ifndef PC98 1369 set_lockkey_state(kbd, state, CLK); 1370#else 1371 state |= CLKED; 1372 i = state & LOCK_MASK; 1373 (void)kbdd_ioctl(kbd, KDSETLED, (caddr_t)&i); 1374#endif 1375 break; 1376 case SLK: 1377 set_lockkey_state(kbd, state, SLK); 1378 break; 1379 case ALK: 1380 set_lockkey_state(kbd, state, ALK); 1381 break; 1382 /* NON-LOCKING KEYS */ 1383 case SPSC: case RBT: case SUSP: case STBY: 1384 case DBG: case NEXT: case PREV: case PNC: 1385 case HALT: case PDWN: 1386 *accents = 0; 1387 break; 1388 case BTAB: 1389 *accents = 0; 1390 action |= BKEY; 1391 break; 1392 case LSHA: 1393 state |= SHIFTAON; 1394 action = LSH; 1395 /* FALL THROUGH */ 1396 case LSH: 1397 state |= SHIFTS1; 1398 break; 1399 case RSHA: 1400 state |= SHIFTAON; 1401 action = RSH; 1402 /* FALL THROUGH */ 1403 case RSH: 1404 state |= SHIFTS2; 1405 break; 1406 case LCTRA: 1407 state |= SHIFTAON; 1408 action = LCTR; 1409 /* FALL THROUGH */ 1410 case LCTR: 1411 state |= CTLS1; 1412 break; 1413 case RCTRA: 1414 state |= SHIFTAON; 1415 action = RCTR; 1416 /* FALL THROUGH */ 1417 case RCTR: 1418 state |= CTLS2; 1419 break; 1420 case LALTA: 1421 state |= SHIFTAON; 1422 action = LALT; 1423 /* FALL THROUGH */ 1424 case LALT: 1425 state |= ALTS1; 1426 break; 1427 case RALTA: 1428 state |= SHIFTAON; 1429 action = RALT; 1430 /* FALL THROUGH */ 1431 case RALT: 1432 state |= ALTS2; 1433 break; 1434 case ASH: 1435 state |= AGRS1; 1436 break; 1437 case META: 1438 state |= METAS1; 1439 break; 1440 case NOP: 1441 *shiftstate = state; 1442 return (NOKEY); 1443 default: 1444 /* is this an accent (dead) key? */ 1445 *shiftstate = state; 1446 if (action >= F_ACC && action <= L_ACC) { 1447 action = save_accent_key(kbd, action, 1448 accents); 1449 switch (action) { 1450 case NOKEY: 1451 case ERRKEY: 1452 return (action); 1453 default: 1454 if (state & METAS) 1455 return (action | MKEY); 1456 else 1457 return (action); 1458 } 1459 /* NOT REACHED */ 1460 } 1461 /* other special keys */ 1462 if (*accents > 0) { 1463 *accents = 0; 1464 return (ERRKEY); 1465 } 1466 if (action >= F_FN && action <= L_FN) 1467 action |= FKEY; 1468 /* XXX: return fkey string for the FKEY? */ 1469 return (SPCLKEY | action); 1470 } 1471 *shiftstate = state; 1472 return (SPCLKEY | action); 1473 } else { 1474 /* regular keys */ 1475 kbd->kb_lastact[keycode] = NOP; 1476 *shiftstate = state; 1477 if (*accents > 0) { 1478 /* make an accented char */ 1479 action = make_accent_char(kbd, action, accents); 1480 if (action == ERRKEY) 1481 return (action); 1482 } 1483 if (state & METAS) 1484 action |= MKEY; 1485 return (action); 1486 } 1487 } 1488 /* NOT REACHED */ 1489} 1490