1 /*- 2 * (MPSAFE) 3 * 4 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer as 12 * the first lines of this file unmodified. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * $FreeBSD: src/sys/dev/kbd/kbd.c,v 1.17.2.2 2001/07/30 16:46:43 yokota Exp $ 29 */ 30 /* 31 * Generic keyboard driver. 32 */ 33 34 #include "opt_kbd.h" 35 36 #include <sys/param.h> 37 #include <sys/systm.h> 38 #include <sys/kernel.h> 39 #include <sys/malloc.h> 40 #include <sys/conf.h> 41 #include <sys/proc.h> 42 #include <sys/tty.h> 43 #include <sys/event.h> 44 #include <sys/vnode.h> 45 #include <sys/uio.h> 46 #include <sys/thread.h> 47 #include <sys/thread2.h> 48 49 #include <machine/console.h> 50 51 #include "kbdreg.h" 52 53 #if 0 54 #define lwkt_gettoken(x) 55 #define lwkt_reltoken(x) 56 #endif 57 58 #define KBD_INDEX(dev) minor(dev) 59 60 #define KB_QSIZE 512 61 #define KB_BUFSIZE 64 62 63 struct genkbd_softc { 64 int gkb_flags; /* flag/status bits */ 65 #define KB_ASLEEP (1 << 0) 66 struct kqinfo gkb_rkq; 67 char gkb_q[KB_QSIZE]; /* input queue */ 68 unsigned int gkb_q_start; 69 unsigned int gkb_q_length; 70 }; 71 72 typedef struct genkbd_softc *genkbd_softc_t; 73 74 static SLIST_HEAD(, keyboard_driver) keyboard_drivers = 75 SLIST_HEAD_INITIALIZER(keyboard_drivers); 76 77 SET_DECLARE(kbddriver_set, const keyboard_driver_t); 78 79 /* local arrays */ 80 81 /* 82 * We need at least one entry each in order to initialize a keyboard 83 * for the kernel console. The arrays will be increased dynamically 84 * when necessary. 85 */ 86 87 static keyboard_t *keyboard[KBD_MAXKEYBOARDS]; 88 89 keyboard_switch_t *kbdsw[KBD_MAXKEYBOARDS]; 90 91 /* 92 * Low-level keyboard driver functions. 93 * 94 * Keyboard subdrivers, such as the AT keyboard driver and the USB keyboard 95 * driver, call these functions to initialize the keyboard_t structure 96 * and register it to the virtual keyboard driver `kbd'. 97 * 98 * The reinit call is made when a driver has partially detached a keyboard 99 * but does not unregistered it, then wishes to reinitialize it later on. 100 * This is how the USB keyboard driver handles the 'default' keyboard, 101 * because unregistering the keyboard associated with the console will 102 * destroy its console association forever. 103 */ 104 void 105 kbd_reinit_struct(keyboard_t *kbd, int config, int pref) 106 { 107 lwkt_gettoken(&kbd_token); 108 kbd->kb_flags |= KB_NO_DEVICE; /* device has not been found */ 109 kbd->kb_config = config & ~KB_CONF_PROBE_ONLY; 110 kbd->kb_led = 0; /* unknown */ 111 kbd->kb_data = NULL; 112 kbd->kb_keymap = NULL; 113 kbd->kb_accentmap = NULL; 114 kbd->kb_fkeytab = NULL; 115 kbd->kb_fkeytab_size = 0; 116 kbd->kb_delay1 = KB_DELAY1; /* these values are advisory only */ 117 kbd->kb_delay2 = KB_DELAY2; 118 kbd->kb_count = 0; 119 kbd->kb_pref = pref; 120 bzero(kbd->kb_lastact, sizeof(kbd->kb_lastact)); 121 lwkt_reltoken(&kbd_token); 122 } 123 124 /* initialize the keyboard_t structure */ 125 void 126 kbd_init_struct(keyboard_t *kbd, char *name, int type, int unit, int config, 127 int pref, int port, int port_size) 128 { 129 lwkt_gettoken(&kbd_token); 130 kbd->kb_flags = 0; 131 kbd->kb_name = name; 132 kbd->kb_type = type; 133 kbd->kb_unit = unit; 134 kbd->kb_io_base = port; 135 kbd->kb_io_size = port_size; 136 kbd_reinit_struct(kbd, config, pref); 137 lockinit(&kbd->kb_lock, name, 0, LK_CANRECURSE); 138 lwkt_reltoken(&kbd_token); 139 } 140 141 void 142 kbd_set_maps(keyboard_t *kbd, keymap_t *keymap, accentmap_t *accmap, 143 fkeytab_t *fkeymap, int fkeymap_size) 144 { 145 lwkt_gettoken(&kbd_token); 146 kbd->kb_keymap = keymap; 147 kbd->kb_accentmap = accmap; 148 kbd->kb_fkeytab = fkeymap; 149 kbd->kb_fkeytab_size = fkeymap_size; 150 lwkt_reltoken(&kbd_token); 151 } 152 153 /* declare a new keyboard driver */ 154 int 155 kbd_add_driver(keyboard_driver_t *driver) 156 { 157 lwkt_gettoken(&kbd_token); 158 if (SLIST_NEXT(driver, link)) { 159 lwkt_reltoken(&kbd_token); 160 return EINVAL; 161 } 162 SLIST_INSERT_HEAD(&keyboard_drivers, driver, link); 163 lwkt_reltoken(&kbd_token); 164 return 0; 165 } 166 167 int 168 kbd_delete_driver(keyboard_driver_t *driver) 169 { 170 lwkt_gettoken(&kbd_token); 171 SLIST_REMOVE(&keyboard_drivers, driver, keyboard_driver, link); 172 SLIST_NEXT(driver, link) = NULL; 173 lwkt_reltoken(&kbd_token); 174 return 0; 175 } 176 177 /* register a keyboard and associate it with a function table */ 178 int 179 kbd_register(keyboard_t *kbd) 180 { 181 const keyboard_driver_t **list; 182 const keyboard_driver_t *p; 183 keyboard_t *mux; 184 keyboard_info_t ki; 185 int index; 186 187 lwkt_gettoken(&kbd_token); 188 mux = kbd_get_keyboard(kbd_find_keyboard("kbdmux", -1)); 189 190 for (index = 0; index < KBD_MAXKEYBOARDS; ++index) { 191 if (keyboard[index] == NULL) 192 break; 193 } 194 if (index >= KBD_MAXKEYBOARDS) { 195 lwkt_reltoken(&kbd_token); 196 return -1; 197 } 198 199 kbd->kb_index = index; 200 KBD_UNBUSY(kbd); 201 KBD_VALID(kbd); 202 kbd->kb_active = 0; /* disabled until someone calls kbd_enable() */ 203 kbd->kb_token = NULL; 204 kbd->kb_callback.kc_func = NULL; 205 kbd->kb_callback.kc_arg = NULL; 206 callout_init_mp(&kbd->kb_atkbd_timeout_ch); 207 208 SLIST_FOREACH(p, &keyboard_drivers, link) { 209 if (strcmp(p->name, kbd->kb_name) == 0) { 210 keyboard[index] = kbd; 211 kbdsw[index] = p->kbdsw; 212 213 if (mux != NULL) { 214 bzero(&ki, sizeof(ki)); 215 strcpy(ki.kb_name, kbd->kb_name); 216 ki.kb_unit = kbd->kb_unit; 217 kbd_ioctl(mux, KBADDKBD, (caddr_t) &ki); 218 } 219 220 lwkt_reltoken(&kbd_token); 221 return index; 222 } 223 } 224 SET_FOREACH(list, kbddriver_set) { 225 p = *list; 226 if (strcmp(p->name, kbd->kb_name) == 0) { 227 keyboard[index] = kbd; 228 kbdsw[index] = p->kbdsw; 229 230 if (mux != NULL) { 231 bzero(&ki, sizeof(ki)); 232 strcpy(ki.kb_name, kbd->kb_name); 233 ki.kb_unit = kbd->kb_unit; 234 kbd_ioctl(mux, KBADDKBD, (caddr_t) &ki); 235 } 236 237 lwkt_reltoken(&kbd_token); 238 return index; 239 } 240 } 241 242 lwkt_reltoken(&kbd_token); 243 return -1; 244 } 245 246 int 247 kbd_unregister(keyboard_t *kbd) 248 { 249 int error; 250 251 KBD_LOCK_ASSERT(kbd); 252 lwkt_gettoken(&kbd_token); 253 if ((kbd->kb_index < 0) || (kbd->kb_index >= KBD_MAXKEYBOARDS)) { 254 lwkt_reltoken(&kbd_token); 255 return ENOENT; 256 } 257 if (keyboard[kbd->kb_index] != kbd) { 258 lwkt_reltoken(&kbd_token); 259 return ENOENT; 260 } 261 262 callout_stop(&kbd->kb_atkbd_timeout_ch); 263 if (KBD_IS_BUSY(kbd)) { 264 error = (*kbd->kb_callback.kc_func)(kbd, KBDIO_UNLOADING, 265 kbd->kb_callback.kc_arg); 266 if (error) { 267 lwkt_reltoken(&kbd_token); 268 return error; 269 } 270 if (KBD_IS_BUSY(kbd)) { 271 lwkt_reltoken(&kbd_token); 272 return EBUSY; 273 } 274 } 275 KBD_CONFIG_LOST(kbd); 276 KBD_INVALID(kbd); 277 keyboard[kbd->kb_index] = NULL; 278 kbdsw[kbd->kb_index] = NULL; 279 280 KBD_ALWAYS_UNLOCK(kbd); 281 lockuninit(&kbd->kb_lock); 282 283 lwkt_reltoken(&kbd_token); 284 return 0; 285 } 286 287 /* find a funciton table by the driver name */ 288 keyboard_switch_t * 289 kbd_get_switch(char *driver) 290 { 291 const keyboard_driver_t **list; 292 const keyboard_driver_t *p; 293 294 lwkt_gettoken(&kbd_token); 295 296 SLIST_FOREACH(p, &keyboard_drivers, link) { 297 if (strcmp(p->name, driver) == 0) { 298 lwkt_reltoken(&kbd_token); 299 return p->kbdsw; 300 } 301 } 302 SET_FOREACH(list, kbddriver_set) { 303 p = *list; 304 if (strcmp(p->name, driver) == 0) { 305 lwkt_reltoken(&kbd_token); 306 return p->kbdsw; 307 } 308 } 309 310 lwkt_reltoken(&kbd_token); 311 return NULL; 312 } 313 314 /* 315 * Keyboard client functions 316 * Keyboard clients, such as the console driver `syscons' and the keyboard 317 * cdev driver, use these functions to claim and release a keyboard for 318 * exclusive use. 319 */ 320 /* 321 * find the keyboard specified by a driver name and a unit number 322 * starting at given index 323 */ 324 int 325 kbd_find_keyboard2(char *driver, int unit, int index, int legacy) 326 { 327 int i; 328 int pref; 329 int pref_index; 330 331 pref = 0; 332 pref_index = -1; 333 334 lwkt_gettoken(&kbd_token); 335 if ((index < 0) || (index >= KBD_MAXKEYBOARDS)) { 336 lwkt_reltoken(&kbd_token); 337 return (-1); 338 } 339 340 for (i = index; i < KBD_MAXKEYBOARDS; ++i) { 341 if (keyboard[i] == NULL) 342 continue; 343 if (!KBD_IS_VALID(keyboard[i])) 344 continue; 345 if (strcmp("*", driver) && strcmp(keyboard[i]->kb_name, driver)) 346 continue; 347 if ((unit != -1) && (keyboard[i]->kb_unit != unit)) 348 continue; 349 /* 350 * If we are in legacy mode, we do the old preference magic and 351 * don't return on the first found unit. 352 */ 353 if (legacy) { 354 if (pref <= keyboard[i]->kb_pref) { 355 pref = keyboard[i]->kb_pref; 356 pref_index = i; 357 } 358 } else { 359 lwkt_reltoken(&kbd_token); 360 return i; 361 } 362 } 363 364 if (!legacy) 365 KKASSERT(pref_index == -1); 366 367 lwkt_reltoken(&kbd_token); 368 return (pref_index); 369 } 370 371 /* find the keyboard specified by a driver name and a unit number */ 372 int 373 kbd_find_keyboard(char *driver, int unit) 374 { 375 return (kbd_find_keyboard2(driver, unit, 0, 1)); 376 } 377 378 /* allocate a keyboard */ 379 int 380 kbd_allocate(char *driver, int unit, void *id, kbd_callback_func_t *func, 381 void *arg) 382 { 383 int index; 384 385 if (func == NULL) 386 return -1; 387 388 lwkt_gettoken(&kbd_token); 389 390 index = kbd_find_keyboard(driver, unit); 391 if (index >= 0) { 392 if (KBD_IS_BUSY(keyboard[index])) { 393 lwkt_reltoken(&kbd_token); 394 return -1; 395 } 396 keyboard[index]->kb_token = id; 397 KBD_BUSY(keyboard[index]); 398 keyboard[index]->kb_callback.kc_func = func; 399 keyboard[index]->kb_callback.kc_arg = arg; 400 kbd_clear_state(keyboard[index]); 401 } 402 403 lwkt_reltoken(&kbd_token); 404 return index; 405 } 406 407 int 408 kbd_release(keyboard_t *kbd, void *id) 409 { 410 int error; 411 412 lwkt_gettoken(&kbd_token); 413 414 if (!KBD_IS_VALID(kbd) || !KBD_IS_BUSY(kbd)) { 415 error = EINVAL; 416 } else if (kbd->kb_token != id) { 417 error = EPERM; 418 } else { 419 kbd->kb_token = NULL; 420 KBD_UNBUSY(kbd); 421 kbd->kb_callback.kc_func = NULL; 422 kbd->kb_callback.kc_arg = NULL; 423 kbd_clear_state(kbd); 424 error = 0; 425 } 426 427 lwkt_reltoken(&kbd_token); 428 return error; 429 } 430 431 int 432 kbd_change_callback(keyboard_t *kbd, void *id, kbd_callback_func_t *func, 433 void *arg) 434 { 435 int error; 436 437 lwkt_gettoken(&kbd_token); 438 439 if (!KBD_IS_VALID(kbd) || !KBD_IS_BUSY(kbd)) { 440 error = EINVAL; 441 } else if (kbd->kb_token != id) { 442 error = EPERM; 443 } else if (func == NULL) { 444 error = EINVAL; 445 } else { 446 kbd->kb_callback.kc_func = func; 447 kbd->kb_callback.kc_arg = arg; 448 error = 0; 449 } 450 451 lwkt_reltoken(&kbd_token); 452 return error; 453 } 454 455 /* get a keyboard structure */ 456 keyboard_t * 457 kbd_get_keyboard(int index) 458 { 459 keyboard_t *kbd; 460 461 lwkt_gettoken(&kbd_token); 462 if ((index < 0) || (index >= KBD_MAXKEYBOARDS)) { 463 lwkt_reltoken(&kbd_token); 464 return NULL; 465 } 466 if (keyboard[index] == NULL) { 467 lwkt_reltoken(&kbd_token); 468 return NULL; 469 } 470 if (!KBD_IS_VALID(keyboard[index])) { 471 lwkt_reltoken(&kbd_token); 472 return NULL; 473 } 474 kbd = keyboard[index]; 475 lwkt_reltoken(&kbd_token); 476 477 return kbd; 478 } 479 480 /* 481 * The back door for the console driver; configure keyboards 482 * This function is for the kernel console to initialize keyboards 483 * at very early stage. 484 */ 485 486 int 487 kbd_configure(int flags) 488 { 489 const keyboard_driver_t **list; 490 const keyboard_driver_t *p; 491 492 lwkt_gettoken(&kbd_token); 493 494 SLIST_FOREACH(p, &keyboard_drivers, link) { 495 if (p->configure != NULL) 496 (*p->configure)(flags); 497 } 498 SET_FOREACH(list, kbddriver_set) { 499 p = *list; 500 if (p->configure != NULL) 501 (*p->configure)(flags); 502 } 503 504 lwkt_reltoken(&kbd_token); 505 return 0; 506 } 507 508 #ifdef KBD_INSTALL_CDEV 509 510 /* 511 * Virtual keyboard cdev driver functions 512 * The virtual keyboard driver dispatches driver functions to 513 * appropriate subdrivers. 514 */ 515 516 #define KBD_UNIT(dev) minor(dev) 517 518 static d_open_t genkbdopen; 519 static d_close_t genkbdclose; 520 static d_read_t genkbdread; 521 static d_write_t genkbdwrite; 522 static d_ioctl_t genkbdioctl; 523 static d_kqfilter_t genkbdkqfilter; 524 525 static void genkbdfiltdetach(struct knote *); 526 static int genkbdfilter(struct knote *, long); 527 528 static struct dev_ops kbd_ops = { 529 { "kbd", 0, D_MPSAFE }, 530 .d_open = genkbdopen, 531 .d_close = genkbdclose, 532 .d_read = genkbdread, 533 .d_write = genkbdwrite, 534 .d_ioctl = genkbdioctl, 535 .d_kqfilter = genkbdkqfilter 536 }; 537 538 /* 539 * Attach a keyboard. 540 * 541 * NOTE: The usb driver does not detach the default keyboard if it is 542 * unplugged, but calls kbd_attach() when it is plugged back in. 543 */ 544 int 545 kbd_attach(keyboard_t *kbd) 546 { 547 cdev_t dev; 548 char tbuf[MAKEDEV_MINNBUF]; 549 550 lwkt_gettoken(&kbd_token); 551 if (kbd->kb_index >= KBD_MAXKEYBOARDS) { 552 lwkt_reltoken(&kbd_token); 553 return EINVAL; 554 } 555 if (keyboard[kbd->kb_index] != kbd) { 556 lwkt_reltoken(&kbd_token); 557 return EINVAL; 558 } 559 560 if (kbd->kb_dev == NULL) { 561 kbd->kb_dev = make_dev(&kbd_ops, kbd->kb_index, 562 UID_ROOT, GID_WHEEL, 0600, "kbd%s", 563 makedev_unit_b32(tbuf, kbd->kb_index)); 564 } 565 dev = kbd->kb_dev; 566 if (dev->si_drv1 == NULL) { 567 dev->si_drv1 = kmalloc(sizeof(struct genkbd_softc), M_DEVBUF, 568 M_WAITOK); 569 } 570 bzero(dev->si_drv1, sizeof(struct genkbd_softc)); 571 572 kprintf("kbd%d at %s%d\n", kbd->kb_index, kbd->kb_name, kbd->kb_unit); 573 lwkt_reltoken(&kbd_token); 574 return 0; 575 } 576 577 int 578 kbd_detach(keyboard_t *kbd) 579 { 580 cdev_t dev; 581 582 lwkt_gettoken(&kbd_token); 583 584 if (kbd->kb_index >= KBD_MAXKEYBOARDS) { 585 lwkt_reltoken(&kbd_token); 586 return EINVAL; 587 } 588 if (keyboard[kbd->kb_index] != kbd) { 589 lwkt_reltoken(&kbd_token); 590 return EINVAL; 591 } 592 593 if ((dev = kbd->kb_dev) != NULL) { 594 if (dev->si_drv1) { 595 kfree(dev->si_drv1, M_DEVBUF); 596 dev->si_drv1 = NULL; 597 } 598 kbd->kb_dev = NULL; 599 } 600 dev_ops_remove_minor(&kbd_ops, kbd->kb_index); 601 lwkt_reltoken(&kbd_token); 602 return 0; 603 } 604 605 /* 606 * Generic keyboard cdev driver functions 607 * Keyboard subdrivers may call these functions to implement common 608 * driver functions. 609 */ 610 611 static void 612 genkbd_putc(genkbd_softc_t sc, char c) 613 { 614 unsigned int p; 615 616 lwkt_gettoken(&kbd_token); 617 618 if (sc->gkb_q_length == KB_QSIZE) { 619 lwkt_reltoken(&kbd_token); 620 return; 621 } 622 623 p = (sc->gkb_q_start + sc->gkb_q_length) % KB_QSIZE; 624 sc->gkb_q[p] = c; 625 sc->gkb_q_length++; 626 627 lwkt_reltoken(&kbd_token); 628 } 629 630 static size_t 631 genkbd_getc(genkbd_softc_t sc, char *buf, size_t len) 632 { 633 634 lwkt_gettoken(&kbd_token); 635 636 /* Determine copy size. */ 637 if (sc->gkb_q_length == 0) { 638 lwkt_reltoken(&kbd_token); 639 return (0); 640 } 641 if (len >= sc->gkb_q_length) 642 len = sc->gkb_q_length; 643 if (len >= KB_QSIZE - sc->gkb_q_start) 644 len = KB_QSIZE - sc->gkb_q_start; 645 646 /* Copy out data and progress offset. */ 647 memcpy(buf, sc->gkb_q + sc->gkb_q_start, len); 648 sc->gkb_q_start = (sc->gkb_q_start + len) % KB_QSIZE; 649 sc->gkb_q_length -= len; 650 651 lwkt_reltoken(&kbd_token); 652 return (len); 653 } 654 655 static kbd_callback_func_t genkbd_event; 656 657 static int 658 genkbdopen(struct dev_open_args *ap) 659 { 660 cdev_t dev = ap->a_head.a_dev; 661 keyboard_t *kbd; 662 genkbd_softc_t sc; 663 int i; 664 665 lwkt_gettoken(&kbd_token); 666 sc = dev->si_drv1; 667 kbd = kbd_get_keyboard(KBD_INDEX(dev)); 668 if ((sc == NULL) || (kbd == NULL) || !KBD_IS_VALID(kbd)) { 669 lwkt_reltoken(&kbd_token); 670 return ENXIO; 671 } 672 i = kbd_allocate(kbd->kb_name, kbd->kb_unit, sc, 673 genkbd_event, sc); 674 if (i < 0) { 675 lwkt_reltoken(&kbd_token); 676 return EBUSY; 677 } 678 /* assert(i == kbd->kb_index) */ 679 /* assert(kbd == kbd_get_keyboard(i)) */ 680 681 /* 682 * NOTE: even when we have successfully claimed a keyboard, 683 * the device may still be missing (!KBD_HAS_DEVICE(kbd)). 684 */ 685 686 sc->gkb_q_length = 0; 687 lwkt_reltoken(&kbd_token); 688 689 return 0; 690 } 691 692 static int 693 genkbdclose(struct dev_close_args *ap) 694 { 695 cdev_t dev = ap->a_head.a_dev; 696 keyboard_t *kbd; 697 genkbd_softc_t sc; 698 699 /* 700 * NOTE: the device may have already become invalid. 701 * kbd == NULL || !KBD_IS_VALID(kbd) 702 */ 703 lwkt_gettoken(&kbd_token); 704 sc = dev->si_drv1; 705 kbd = kbd_get_keyboard(KBD_INDEX(dev)); 706 if ((sc == NULL) || (kbd == NULL) || !KBD_IS_VALID(kbd)) { 707 /* XXX: we shall be forgiving and don't report error... */ 708 } else { 709 kbd_release(kbd, sc); 710 } 711 lwkt_reltoken(&kbd_token); 712 return 0; 713 } 714 715 static int 716 genkbdread(struct dev_read_args *ap) 717 { 718 cdev_t dev = ap->a_head.a_dev; 719 struct uio *uio = ap->a_uio; 720 keyboard_t *kbd; 721 genkbd_softc_t sc; 722 u_char buffer[KB_BUFSIZE]; 723 int len; 724 int error; 725 726 /* wait for input */ 727 lwkt_gettoken(&kbd_token); 728 sc = dev->si_drv1; 729 kbd = kbd_get_keyboard(KBD_INDEX(dev)); 730 if ((sc == NULL) || (kbd == NULL) || !KBD_IS_VALID(kbd)) { 731 lwkt_reltoken(&kbd_token); 732 return ENXIO; 733 } 734 while (sc->gkb_q_length == 0) { 735 if (ap->a_ioflag & IO_NDELAY) { /* O_NONBLOCK? */ 736 lwkt_reltoken(&kbd_token); 737 return EWOULDBLOCK; 738 } 739 sc->gkb_flags |= KB_ASLEEP; 740 error = tsleep((caddr_t)sc, PCATCH, "kbdrea", 0); 741 kbd = kbd_get_keyboard(KBD_INDEX(dev)); 742 if ((kbd == NULL) || !KBD_IS_VALID(kbd)) { 743 lwkt_reltoken(&kbd_token); 744 return ENXIO; /* our keyboard has gone... */ 745 } 746 if (error) { 747 sc->gkb_flags &= ~KB_ASLEEP; 748 lwkt_reltoken(&kbd_token); 749 return error; 750 } 751 } 752 lwkt_reltoken(&kbd_token); 753 754 /* copy as much input as possible */ 755 error = 0; 756 while (uio->uio_resid > 0) { 757 len = (int)szmin(uio->uio_resid, sizeof(buffer)); 758 len = genkbd_getc(sc, buffer, len); 759 if (len <= 0) 760 break; 761 error = uiomove(buffer, (size_t)len, uio); 762 if (error) 763 break; 764 } 765 766 return error; 767 } 768 769 static int 770 genkbdwrite(struct dev_write_args *ap) 771 { 772 cdev_t dev = ap->a_head.a_dev; 773 keyboard_t *kbd; 774 775 lwkt_gettoken(&kbd_token); 776 kbd = kbd_get_keyboard(KBD_INDEX(dev)); 777 if ((kbd == NULL) || !KBD_IS_VALID(kbd)) { 778 lwkt_reltoken(&kbd_token); 779 return ENXIO; 780 } 781 lwkt_reltoken(&kbd_token); 782 return ENODEV; 783 } 784 785 static int 786 genkbdioctl(struct dev_ioctl_args *ap) 787 { 788 cdev_t dev = ap->a_head.a_dev; 789 keyboard_t *kbd; 790 int error; 791 792 lwkt_gettoken(&kbd_token); 793 kbd = kbd_get_keyboard(KBD_INDEX(dev)); 794 if ((kbd == NULL) || !KBD_IS_VALID(kbd)) { 795 lwkt_reltoken(&kbd_token); 796 return ENXIO; 797 } 798 error = kbd_ioctl(kbd, ap->a_cmd, ap->a_data); 799 if (error == ENOIOCTL) 800 error = ENODEV; 801 802 lwkt_reltoken(&kbd_token); 803 return error; 804 } 805 806 static struct filterops genkbdfiltops = 807 { FILTEROP_ISFD, NULL, genkbdfiltdetach, genkbdfilter }; 808 809 static int 810 genkbdkqfilter(struct dev_kqfilter_args *ap) 811 { 812 cdev_t dev = ap->a_head.a_dev; 813 struct knote *kn = ap->a_kn; 814 genkbd_softc_t sc; 815 struct klist *klist; 816 817 ap->a_result = 0; 818 819 switch (kn->kn_filter) { 820 case EVFILT_READ: 821 kn->kn_fop = &genkbdfiltops; 822 kn->kn_hook = (caddr_t)dev; 823 break; 824 default: 825 ap->a_result = EOPNOTSUPP; 826 return (0); 827 } 828 829 sc = dev->si_drv1; 830 klist = &sc->gkb_rkq.ki_note; 831 knote_insert(klist, kn); 832 833 return (0); 834 } 835 836 static void 837 genkbdfiltdetach(struct knote *kn) 838 { 839 cdev_t dev = (cdev_t)kn->kn_hook; 840 genkbd_softc_t sc; 841 struct klist *klist; 842 843 sc = dev->si_drv1; 844 klist = &sc->gkb_rkq.ki_note; 845 knote_remove(klist, kn); 846 } 847 848 static int 849 genkbdfilter(struct knote *kn, long hint) 850 { 851 cdev_t dev = (cdev_t)kn->kn_hook; 852 keyboard_t *kbd; 853 genkbd_softc_t sc; 854 int ready = 0; 855 856 lwkt_gettoken(&kbd_token); 857 sc = dev->si_drv1; 858 kbd = kbd_get_keyboard(KBD_INDEX(dev)); 859 if ((sc == NULL) || (kbd == NULL) || !KBD_IS_VALID(kbd)) { 860 /* The keyboard has gone */ 861 kn->kn_flags |= (EV_EOF | EV_NODATA); 862 ready = 1; 863 } else { 864 if (sc->gkb_q_length > 0) 865 ready = 1; 866 } 867 lwkt_reltoken(&kbd_token); 868 869 return (ready); 870 } 871 872 static int 873 genkbd_event(keyboard_t *kbd, int event, void *arg) 874 { 875 genkbd_softc_t sc; 876 size_t len; 877 u_char *cp; 878 int mode; 879 int c; 880 881 lwkt_gettoken(&kbd_token); 882 /* assert(KBD_IS_VALID(kbd)) */ 883 sc = (genkbd_softc_t)arg; 884 885 switch (event) { 886 case KBDIO_KEYINPUT: 887 break; 888 case KBDIO_UNLOADING: 889 /* the keyboard is going... */ 890 kbd_release(kbd, sc); 891 if (sc->gkb_flags & KB_ASLEEP) { 892 sc->gkb_flags &= ~KB_ASLEEP; 893 wakeup((caddr_t)sc); 894 } 895 KNOTE(&sc->gkb_rkq.ki_note, 0); 896 lwkt_reltoken(&kbd_token); 897 return 0; 898 default: 899 lwkt_reltoken(&kbd_token); 900 return EINVAL; 901 } 902 903 /* obtain the current key input mode */ 904 if (kbd_ioctl(kbd, KDGKBMODE, (caddr_t)&mode)) 905 mode = K_XLATE; 906 907 /* read all pending input */ 908 while (kbd_check_char(kbd)) { 909 c = kbd_read_char(kbd, FALSE); 910 if (c == NOKEY) 911 continue; 912 if (c == ERRKEY) /* XXX: ring bell? */ 913 continue; 914 if (!KBD_IS_BUSY(kbd)) 915 /* the device is not open, discard the input */ 916 continue; 917 918 /* store the byte as is for K_RAW and K_CODE modes */ 919 if (mode != K_XLATE) { 920 genkbd_putc(sc, KEYCHAR(c)); 921 continue; 922 } 923 924 /* K_XLATE */ 925 if (c & RELKEY) /* key release is ignored */ 926 continue; 927 928 /* process special keys; most of them are just ignored... */ 929 if (c & SPCLKEY) { 930 switch (KEYCHAR(c)) { 931 default: 932 /* ignore them... */ 933 continue; 934 case BTAB: /* a backtab: ESC [ Z */ 935 genkbd_putc(sc, 0x1b); 936 genkbd_putc(sc, '['); 937 genkbd_putc(sc, 'Z'); 938 continue; 939 } 940 } 941 942 /* normal chars, normal chars with the META, function keys */ 943 switch (KEYFLAGS(c)) { 944 case 0: /* a normal char */ 945 genkbd_putc(sc, KEYCHAR(c)); 946 break; 947 case MKEY: /* the META flag: prepend ESC */ 948 genkbd_putc(sc, 0x1b); 949 genkbd_putc(sc, KEYCHAR(c)); 950 break; 951 case FKEY | SPCLKEY: /* a function key, return string */ 952 cp = kbd_get_fkeystr(kbd, KEYCHAR(c), &len); 953 if (cp != NULL) { 954 while (len-- > 0) 955 genkbd_putc(sc, *cp++); 956 } 957 break; 958 } 959 } 960 961 /* wake up sleeping/polling processes */ 962 if (sc->gkb_q_length > 0) { 963 if (sc->gkb_flags & KB_ASLEEP) { 964 sc->gkb_flags &= ~KB_ASLEEP; 965 wakeup((caddr_t)sc); 966 } 967 KNOTE(&sc->gkb_rkq.ki_note, 0); 968 } 969 970 lwkt_reltoken(&kbd_token); 971 return 0; 972 } 973 974 #endif /* KBD_INSTALL_CDEV */ 975 976 /* 977 * Generic low-level keyboard functions 978 * The low-level functions in the keyboard subdriver may use these 979 * functions. 980 */ 981 982 int 983 genkbd_commonioctl(keyboard_t *kbd, u_long cmd, caddr_t arg) 984 { 985 keyarg_t *keyp; 986 fkeyarg_t *fkeyp; 987 int i; 988 989 lwkt_gettoken(&kbd_token); 990 switch (cmd) { 991 992 case KDGKBINFO: /* get keyboard information */ 993 ((keyboard_info_t *)arg)->kb_index = kbd->kb_index; 994 i = imin(strlen(kbd->kb_name) + 1, 995 sizeof(((keyboard_info_t *)arg)->kb_name)); 996 bcopy(kbd->kb_name, ((keyboard_info_t *)arg)->kb_name, i); 997 ((keyboard_info_t *)arg)->kb_unit = kbd->kb_unit; 998 ((keyboard_info_t *)arg)->kb_type = kbd->kb_type; 999 ((keyboard_info_t *)arg)->kb_config = kbd->kb_config; 1000 ((keyboard_info_t *)arg)->kb_flags = kbd->kb_flags; 1001 break; 1002 1003 case KDGKBTYPE: /* get keyboard type */ 1004 *(int *)arg = kbd->kb_type; 1005 break; 1006 1007 case KDGETREPEAT: /* get keyboard repeat rate */ 1008 ((int *)arg)[0] = kbd->kb_delay1; 1009 ((int *)arg)[1] = kbd->kb_delay2; 1010 break; 1011 1012 case GIO_KEYMAP: /* get keyboard translation table */ 1013 bcopy(kbd->kb_keymap, arg, sizeof(*kbd->kb_keymap)); 1014 break; 1015 case PIO_KEYMAP: /* set keyboard translation table */ 1016 #ifndef KBD_DISABLE_KEYMAP_LOAD 1017 bzero(kbd->kb_accentmap, sizeof(*kbd->kb_accentmap)); 1018 bcopy(arg, kbd->kb_keymap, sizeof(*kbd->kb_keymap)); 1019 break; 1020 #else 1021 lwkt_reltoken(&kbd_token); 1022 return ENODEV; 1023 #endif 1024 1025 case GIO_KEYMAPENT: /* get keyboard translation table entry */ 1026 keyp = (keyarg_t *)arg; 1027 if (keyp->keynum >= sizeof(kbd->kb_keymap->key) 1028 /sizeof(kbd->kb_keymap->key[0])) { 1029 lwkt_reltoken(&kbd_token); 1030 return EINVAL; 1031 } 1032 bcopy(&kbd->kb_keymap->key[keyp->keynum], &keyp->key, 1033 sizeof(keyp->key)); 1034 break; 1035 case PIO_KEYMAPENT: /* set keyboard translation table entry */ 1036 #ifndef KBD_DISABLE_KEYMAP_LOAD 1037 keyp = (keyarg_t *)arg; 1038 if (keyp->keynum >= sizeof(kbd->kb_keymap->key) 1039 /sizeof(kbd->kb_keymap->key[0])) { 1040 lwkt_reltoken(&kbd_token); 1041 return EINVAL; 1042 } 1043 bcopy(&keyp->key, &kbd->kb_keymap->key[keyp->keynum], 1044 sizeof(keyp->key)); 1045 break; 1046 #else 1047 lwkt_reltoken(&kbd_token); 1048 return ENODEV; 1049 #endif 1050 1051 case GIO_DEADKEYMAP: /* get accent key translation table */ 1052 bcopy(kbd->kb_accentmap, arg, sizeof(*kbd->kb_accentmap)); 1053 break; 1054 case PIO_DEADKEYMAP: /* set accent key translation table */ 1055 #ifndef KBD_DISABLE_KEYMAP_LOAD 1056 bcopy(arg, kbd->kb_accentmap, sizeof(*kbd->kb_accentmap)); 1057 break; 1058 #else 1059 lwkt_reltoken(&kbd_token); 1060 return ENODEV; 1061 #endif 1062 1063 case GETFKEY: /* get functionkey string */ 1064 fkeyp = (fkeyarg_t *)arg; 1065 if (fkeyp->keynum >= kbd->kb_fkeytab_size) { 1066 lwkt_reltoken(&kbd_token); 1067 return EINVAL; 1068 } 1069 bcopy(kbd->kb_fkeytab[fkeyp->keynum].str, fkeyp->keydef, 1070 kbd->kb_fkeytab[fkeyp->keynum].len); 1071 fkeyp->flen = kbd->kb_fkeytab[fkeyp->keynum].len; 1072 break; 1073 case SETFKEY: /* set functionkey string */ 1074 #ifndef KBD_DISABLE_KEYMAP_LOAD 1075 fkeyp = (fkeyarg_t *)arg; 1076 if (fkeyp->keynum >= kbd->kb_fkeytab_size) { 1077 lwkt_reltoken(&kbd_token); 1078 return EINVAL; 1079 } 1080 kbd->kb_fkeytab[fkeyp->keynum].len = imin(fkeyp->flen, MAXFK); 1081 bcopy(fkeyp->keydef, kbd->kb_fkeytab[fkeyp->keynum].str, 1082 kbd->kb_fkeytab[fkeyp->keynum].len); 1083 break; 1084 #else 1085 lwkt_reltoken(&kbd_token); 1086 return ENODEV; 1087 #endif 1088 1089 default: 1090 lwkt_reltoken(&kbd_token); 1091 return ENOIOCTL; 1092 } 1093 1094 lwkt_reltoken(&kbd_token); 1095 return 0; 1096 } 1097 1098 /* get a pointer to the string associated with the given function key */ 1099 u_char * 1100 genkbd_get_fkeystr(keyboard_t *kbd, int fkey, size_t *len) 1101 { 1102 u_char *ch; 1103 1104 if (kbd == NULL) 1105 return NULL; 1106 1107 lwkt_gettoken(&kbd_token); 1108 fkey -= F_FN; 1109 if (fkey > kbd->kb_fkeytab_size) { 1110 lwkt_reltoken(&kbd_token); 1111 return NULL; 1112 } 1113 *len = kbd->kb_fkeytab[fkey].len; 1114 ch = kbd->kb_fkeytab[fkey].str; 1115 1116 lwkt_reltoken(&kbd_token); 1117 return ch; 1118 } 1119 1120 /* diagnostic dump */ 1121 static char * 1122 get_kbd_type_name(int type) 1123 { 1124 static struct { 1125 int type; 1126 char *name; 1127 } name_table[] = { 1128 { KB_84, "AT 84" }, 1129 { KB_101, "AT 101/102" }, 1130 { KB_OTHER, "generic" }, 1131 }; 1132 int i; 1133 1134 for (i = 0; i < NELEM(name_table); ++i) { 1135 if (type == name_table[i].type) 1136 return name_table[i].name; 1137 } 1138 return "unknown"; 1139 } 1140 1141 void 1142 genkbd_diag(keyboard_t *kbd, int level) 1143 { 1144 if (level > 0) { 1145 kprintf("kbd%d: %s%d, %s (%d), config:0x%x, flags:0x%x", 1146 kbd->kb_index, kbd->kb_name, kbd->kb_unit, 1147 get_kbd_type_name(kbd->kb_type), kbd->kb_type, 1148 kbd->kb_config, kbd->kb_flags); 1149 if (kbd->kb_io_base > 0) 1150 kprintf(", port:0x%x-0x%x", kbd->kb_io_base, 1151 kbd->kb_io_base + kbd->kb_io_size - 1); 1152 kprintf("\n"); 1153 } 1154 } 1155 1156 #define set_lockkey_state(k, s, l) \ 1157 if (!((s) & l ## DOWN)) { \ 1158 int i; \ 1159 (s) |= l ## DOWN; \ 1160 (s) ^= l ## ED; \ 1161 i = (s) & LOCK_MASK; \ 1162 kbd_ioctl((k), KDSETLED, (caddr_t)&i); \ 1163 } 1164 1165 static u_int 1166 save_accent_key(keyboard_t *kbd, u_int key, int *accents) 1167 { 1168 int i; 1169 1170 lwkt_gettoken(&kbd_token); 1171 /* make an index into the accent map */ 1172 i = key - F_ACC + 1; 1173 if ((i > kbd->kb_accentmap->n_accs) 1174 || (kbd->kb_accentmap->acc[i - 1].accchar == 0)) { 1175 /* the index is out of range or pointing to an empty entry */ 1176 *accents = 0; 1177 lwkt_reltoken(&kbd_token); 1178 return ERRKEY; 1179 } 1180 1181 /* 1182 * If the same accent key has been hit twice, produce the accent char 1183 * itself. 1184 */ 1185 if (i == *accents) { 1186 key = kbd->kb_accentmap->acc[i - 1].accchar; 1187 *accents = 0; 1188 lwkt_reltoken(&kbd_token); 1189 return key; 1190 } 1191 1192 /* remember the index and wait for the next key */ 1193 *accents = i; 1194 lwkt_reltoken(&kbd_token); 1195 return NOKEY; 1196 } 1197 1198 static u_int 1199 make_accent_char(keyboard_t *kbd, u_int ch, int *accents) 1200 { 1201 struct acc_t *acc; 1202 int i; 1203 1204 lwkt_gettoken(&kbd_token); 1205 acc = &kbd->kb_accentmap->acc[*accents - 1]; 1206 *accents = 0; 1207 1208 /* 1209 * If the accent key is followed by the space key, 1210 * produce the accent char itself. 1211 */ 1212 if (ch == ' ') { 1213 lwkt_reltoken(&kbd_token); 1214 return acc->accchar; 1215 } 1216 1217 /* scan the accent map */ 1218 for (i = 0; i < NUM_ACCENTCHARS; ++i) { 1219 if (acc->map[i][0] == 0) /* end of table */ 1220 break; 1221 if (acc->map[i][0] == ch) { 1222 lwkt_reltoken(&kbd_token); 1223 return acc->map[i][1]; 1224 } 1225 } 1226 lwkt_reltoken(&kbd_token); 1227 /* this char cannot be accented... */ 1228 return ERRKEY; 1229 } 1230 1231 int 1232 genkbd_keyaction(keyboard_t *kbd, int keycode, int up, int *shiftstate, 1233 int *accents) 1234 { 1235 struct keyent_t *key; 1236 int state = *shiftstate; 1237 int action; 1238 int f; 1239 int i; 1240 1241 lwkt_gettoken(&kbd_token); 1242 i = keycode; 1243 f = state & (AGRS | ALKED); 1244 if ((f == AGRS1) || (f == AGRS2) || (f == ALKED)) 1245 i += ALTGR_OFFSET; 1246 key = &kbd->kb_keymap->key[i]; 1247 i = ((state & SHIFTS) ? 1 : 0) 1248 | ((state & CTLS) ? 2 : 0) 1249 | ((state & ALTS) ? 4 : 0); 1250 if (((key->flgs & FLAG_LOCK_C) && (state & CLKED)) 1251 || ((key->flgs & FLAG_LOCK_N) && (state & NLKED)) ) 1252 i ^= 1; 1253 1254 if (up) { /* break: key released */ 1255 action = kbd->kb_lastact[keycode]; 1256 kbd->kb_lastact[keycode] = NOP; 1257 switch (action) { 1258 case LSHA: 1259 if (state & SHIFTAON) { 1260 set_lockkey_state(kbd, state, ALK); 1261 state &= ~ALKDOWN; 1262 } 1263 action = LSH; 1264 /* FALL THROUGH */ 1265 case LSH: 1266 state &= ~SHIFTS1; 1267 break; 1268 case RSHA: 1269 if (state & SHIFTAON) { 1270 set_lockkey_state(kbd, state, ALK); 1271 state &= ~ALKDOWN; 1272 } 1273 action = RSH; 1274 /* FALL THROUGH */ 1275 case RSH: 1276 state &= ~SHIFTS2; 1277 break; 1278 case LCTRA: 1279 if (state & SHIFTAON) { 1280 set_lockkey_state(kbd, state, ALK); 1281 state &= ~ALKDOWN; 1282 } 1283 action = LCTR; 1284 /* FALL THROUGH */ 1285 case LCTR: 1286 state &= ~CTLS1; 1287 break; 1288 case RCTRA: 1289 if (state & SHIFTAON) { 1290 set_lockkey_state(kbd, state, ALK); 1291 state &= ~ALKDOWN; 1292 } 1293 action = RCTR; 1294 /* FALL THROUGH */ 1295 case RCTR: 1296 state &= ~CTLS2; 1297 break; 1298 case LALTA: 1299 if (state & SHIFTAON) { 1300 set_lockkey_state(kbd, state, ALK); 1301 state &= ~ALKDOWN; 1302 } 1303 action = LALT; 1304 /* FALL THROUGH */ 1305 case LALT: 1306 state &= ~ALTS1; 1307 break; 1308 case RALTA: 1309 if (state & SHIFTAON) { 1310 set_lockkey_state(kbd, state, ALK); 1311 state &= ~ALKDOWN; 1312 } 1313 action = RALT; 1314 /* FALL THROUGH */ 1315 case RALT: 1316 state &= ~ALTS2; 1317 break; 1318 case ASH: 1319 state &= ~AGRS1; 1320 break; 1321 case META: 1322 state &= ~METAS1; 1323 break; 1324 case NLK: 1325 state &= ~NLKDOWN; 1326 break; 1327 case CLK: 1328 state &= ~CLKDOWN; 1329 break; 1330 case SLK: 1331 state &= ~SLKDOWN; 1332 break; 1333 case ALK: 1334 state &= ~ALKDOWN; 1335 break; 1336 case NOP: 1337 /* release events of regular keys are not reported */ 1338 *shiftstate &= ~SHIFTAON; 1339 lwkt_reltoken(&kbd_token); 1340 return NOKEY; 1341 } 1342 *shiftstate = state & ~SHIFTAON; 1343 lwkt_reltoken(&kbd_token); 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 lwkt_reltoken(&kbd_token); 1429 return NOKEY; 1430 default: 1431 /* is this an accent (dead) key? */ 1432 *shiftstate = state; 1433 if (action >= F_ACC && action <= L_ACC) { 1434 action = save_accent_key(kbd, action, 1435 accents); 1436 switch (action) { 1437 case NOKEY: 1438 case ERRKEY: 1439 lwkt_reltoken(&kbd_token); 1440 return action; 1441 default: 1442 if (state & METAS) { 1443 lwkt_reltoken(&kbd_token); 1444 return (action | MKEY); 1445 } else { 1446 lwkt_reltoken(&kbd_token); 1447 return action; 1448 } 1449 } 1450 /* NOT REACHED */ 1451 } 1452 /* other special keys */ 1453 if (*accents > 0) { 1454 *accents = 0; 1455 lwkt_reltoken(&kbd_token); 1456 return ERRKEY; 1457 } 1458 if (action >= F_FN && action <= L_FN) 1459 action |= FKEY; 1460 /* XXX: return fkey string for the FKEY? */ 1461 lwkt_reltoken(&kbd_token); 1462 return (SPCLKEY | action); 1463 } 1464 *shiftstate = state; 1465 lwkt_reltoken(&kbd_token); 1466 return (SPCLKEY | action); 1467 } else { 1468 /* regular keys */ 1469 kbd->kb_lastact[keycode] = NOP; 1470 *shiftstate = state; 1471 if (*accents > 0) { 1472 /* make an accented char */ 1473 action = make_accent_char(kbd, action, accents); 1474 if (action == ERRKEY) { 1475 lwkt_reltoken(&kbd_token); 1476 return action; 1477 } 1478 } 1479 if (state & METAS) 1480 action |= MKEY; 1481 lwkt_reltoken(&kbd_token); 1482 return action; 1483 } 1484 } 1485 /* NOT REACHED */ 1486 lwkt_reltoken(&kbd_token); 1487 } 1488