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 48 #include <machine/console.h> 49 50 #include "kbdreg.h" 51 52 #if 0 53 #define lwkt_gettoken(x) 54 #define lwkt_reltoken(x) 55 #endif 56 57 #define KBD_INDEX(dev) minor(dev) 58 59 #define KB_QSIZE 512 60 #define KB_BUFSIZE 64 61 62 struct genkbd_softc { 63 int gkb_flags; /* flag/status bits */ 64 #define KB_ASLEEP (1 << 0) 65 struct kqinfo gkb_rkq; 66 char gkb_q[KB_QSIZE]; /* input queue */ 67 unsigned int gkb_q_start; 68 unsigned int gkb_q_length; 69 }; 70 71 typedef struct genkbd_softc *genkbd_softc_t; 72 73 static SLIST_HEAD(, keyboard_driver) keyboard_drivers = 74 SLIST_HEAD_INITIALIZER(keyboard_drivers); 75 76 SET_DECLARE(kbddriver_set, const keyboard_driver_t); 77 78 /* local arrays */ 79 80 /* 81 * We need at least one entry each in order to initialize a keyboard 82 * for the kernel console. The arrays will be increased dynamically 83 * when necessary. 84 */ 85 86 static keyboard_t *keyboard[KBD_MAXKEYBOARDS]; 87 88 keyboard_switch_t *kbdsw[KBD_MAXKEYBOARDS]; 89 90 /* 91 * Low-level keyboard driver functions. 92 * 93 * Keyboard subdrivers, such as the AT keyboard driver and the USB keyboard 94 * driver, call these functions to initialize the keyboard_t structure 95 * and register it to the virtual keyboard driver `kbd'. 96 * 97 * The reinit call is made when a driver has partially detached a keyboard 98 * but does not unregistered it, then wishes to reinitialize it later on. 99 * This is how the USB keyboard driver handles the 'default' keyboard, 100 * because unregistering the keyboard associated with the console will 101 * destroy its console association forever. 102 */ 103 void 104 kbd_reinit_struct(keyboard_t *kbd, int config, int pref) 105 { 106 lwkt_gettoken(&kbd_token); 107 kbd->kb_flags |= KB_NO_DEVICE; /* device has not been found */ 108 kbd->kb_config = config & ~KB_CONF_PROBE_ONLY; 109 kbd->kb_led = 0; /* unknown */ 110 kbd->kb_data = NULL; 111 kbd->kb_keymap = NULL; 112 kbd->kb_accentmap = NULL; 113 kbd->kb_fkeytab = NULL; 114 kbd->kb_fkeytab_size = 0; 115 kbd->kb_delay1 = KB_DELAY1; /* these values are advisory only */ 116 kbd->kb_delay2 = KB_DELAY2; 117 kbd->kb_count = 0; 118 kbd->kb_pref = pref; 119 bzero(kbd->kb_lastact, sizeof(kbd->kb_lastact)); 120 lwkt_reltoken(&kbd_token); 121 } 122 123 /* initialize the keyboard_t structure */ 124 void 125 kbd_init_struct(keyboard_t *kbd, char *name, int type, int unit, int config, 126 int pref, int port, int port_size) 127 { 128 lwkt_gettoken(&kbd_token); 129 kbd->kb_flags = 0; 130 kbd->kb_name = name; 131 kbd->kb_type = type; 132 kbd->kb_unit = unit; 133 kbd->kb_io_base = port; 134 kbd->kb_io_size = port_size; 135 kbd_reinit_struct(kbd, config, pref); 136 lockinit(&kbd->kb_lock, name, 0, LK_CANRECURSE); 137 lwkt_reltoken(&kbd_token); 138 } 139 140 void 141 kbd_set_maps(keyboard_t *kbd, keymap_t *keymap, accentmap_t *accmap, 142 fkeytab_t *fkeymap, int fkeymap_size) 143 { 144 lwkt_gettoken(&kbd_token); 145 kbd->kb_keymap = keymap; 146 kbd->kb_accentmap = accmap; 147 kbd->kb_fkeytab = fkeymap; 148 kbd->kb_fkeytab_size = fkeymap_size; 149 lwkt_reltoken(&kbd_token); 150 } 151 152 /* declare a new keyboard driver */ 153 int 154 kbd_add_driver(keyboard_driver_t *driver) 155 { 156 lwkt_gettoken(&kbd_token); 157 if (SLIST_NEXT(driver, link)) { 158 lwkt_reltoken(&kbd_token); 159 return EINVAL; 160 } 161 SLIST_INSERT_HEAD(&keyboard_drivers, driver, link); 162 lwkt_reltoken(&kbd_token); 163 return 0; 164 } 165 166 int 167 kbd_delete_driver(keyboard_driver_t *driver) 168 { 169 lwkt_gettoken(&kbd_token); 170 SLIST_REMOVE(&keyboard_drivers, driver, keyboard_driver, link); 171 SLIST_NEXT(driver, link) = NULL; 172 lwkt_reltoken(&kbd_token); 173 return 0; 174 } 175 176 /* register a keyboard and associate it with a function table */ 177 int 178 kbd_register(keyboard_t *kbd) 179 { 180 const keyboard_driver_t **list; 181 const keyboard_driver_t *p; 182 keyboard_t *mux; 183 keyboard_info_t ki; 184 int index; 185 186 lwkt_gettoken(&kbd_token); 187 mux = kbd_get_keyboard(kbd_find_keyboard("kbdmux", -1)); 188 189 for (index = 0; index < KBD_MAXKEYBOARDS; ++index) { 190 if (keyboard[index] == NULL) 191 break; 192 } 193 if (index >= KBD_MAXKEYBOARDS) { 194 lwkt_reltoken(&kbd_token); 195 return -1; 196 } 197 198 kbd->kb_index = index; 199 KBD_UNBUSY(kbd); 200 KBD_VALID(kbd); 201 kbd->kb_active = 0; /* disabled until someone calls kbd_enable() */ 202 kbd->kb_token = NULL; 203 kbd->kb_callback.kc_func = NULL; 204 kbd->kb_callback.kc_arg = NULL; 205 callout_init_mp(&kbd->kb_atkbd_timeout_ch); 206 207 SLIST_FOREACH(p, &keyboard_drivers, link) { 208 if (strcmp(p->name, kbd->kb_name) == 0) { 209 keyboard[index] = kbd; 210 kbdsw[index] = p->kbdsw; 211 212 if (mux != NULL) { 213 bzero(&ki, sizeof(ki)); 214 strcpy(ki.kb_name, kbd->kb_name); 215 ki.kb_unit = kbd->kb_unit; 216 kbd_ioctl(mux, KBADDKBD, (caddr_t) &ki); 217 } 218 219 lwkt_reltoken(&kbd_token); 220 return index; 221 } 222 } 223 SET_FOREACH(list, kbddriver_set) { 224 p = *list; 225 if (strcmp(p->name, kbd->kb_name) == 0) { 226 keyboard[index] = kbd; 227 kbdsw[index] = p->kbdsw; 228 229 if (mux != NULL) { 230 bzero(&ki, sizeof(ki)); 231 strcpy(ki.kb_name, kbd->kb_name); 232 ki.kb_unit = kbd->kb_unit; 233 kbd_ioctl(mux, KBADDKBD, (caddr_t) &ki); 234 } 235 236 lwkt_reltoken(&kbd_token); 237 return index; 238 } 239 } 240 241 lwkt_reltoken(&kbd_token); 242 return -1; 243 } 244 245 int 246 kbd_unregister(keyboard_t *kbd) 247 { 248 int error; 249 250 KBD_LOCK_ASSERT(kbd); 251 lwkt_gettoken(&kbd_token); 252 if ((kbd->kb_index < 0) || (kbd->kb_index >= KBD_MAXKEYBOARDS)) { 253 lwkt_reltoken(&kbd_token); 254 return ENOENT; 255 } 256 if (keyboard[kbd->kb_index] != kbd) { 257 lwkt_reltoken(&kbd_token); 258 return ENOENT; 259 } 260 261 callout_stop(&kbd->kb_atkbd_timeout_ch); 262 if (KBD_IS_BUSY(kbd)) { 263 error = (*kbd->kb_callback.kc_func)(kbd, KBDIO_UNLOADING, 264 kbd->kb_callback.kc_arg); 265 if (error) { 266 lwkt_reltoken(&kbd_token); 267 return error; 268 } 269 if (KBD_IS_BUSY(kbd)) { 270 lwkt_reltoken(&kbd_token); 271 return EBUSY; 272 } 273 } 274 KBD_CONFIG_LOST(kbd); 275 KBD_INVALID(kbd); 276 keyboard[kbd->kb_index] = NULL; 277 kbdsw[kbd->kb_index] = NULL; 278 279 KBD_ALWAYS_UNLOCK(kbd); 280 lockuninit(&kbd->kb_lock); 281 282 lwkt_reltoken(&kbd_token); 283 return 0; 284 } 285 286 /* find a funciton 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 lwkt_gettoken(&kbd_token); 294 295 SLIST_FOREACH(p, &keyboard_drivers, link) { 296 if (strcmp(p->name, driver) == 0) { 297 lwkt_reltoken(&kbd_token); 298 return p->kbdsw; 299 } 300 } 301 SET_FOREACH(list, kbddriver_set) { 302 p = *list; 303 if (strcmp(p->name, driver) == 0) { 304 lwkt_reltoken(&kbd_token); 305 return p->kbdsw; 306 } 307 } 308 309 lwkt_reltoken(&kbd_token); 310 return NULL; 311 } 312 313 /* 314 * Keyboard client functions 315 * Keyboard clients, such as the console driver `syscons' and the keyboard 316 * cdev driver, use these functions to claim and release a keyboard for 317 * exclusive use. 318 */ 319 /* 320 * find the keyboard specified by a driver name and a unit number 321 * starting at given index 322 */ 323 int 324 kbd_find_keyboard2(char *driver, int unit, int index, int legacy) 325 { 326 int i; 327 int pref; 328 int pref_index; 329 330 pref = 0; 331 pref_index = -1; 332 333 lwkt_gettoken(&kbd_token); 334 if ((index < 0) || (index >= KBD_MAXKEYBOARDS)) { 335 lwkt_reltoken(&kbd_token); 336 return (-1); 337 } 338 339 for (i = index; i < KBD_MAXKEYBOARDS; ++i) { 340 if (keyboard[i] == NULL) 341 continue; 342 if (!KBD_IS_VALID(keyboard[i])) 343 continue; 344 if (strcmp("*", driver) && strcmp(keyboard[i]->kb_name, driver)) 345 continue; 346 if ((unit != -1) && (keyboard[i]->kb_unit != unit)) 347 continue; 348 /* 349 * If we are in legacy mode, we do the old preference magic and 350 * don't return on the first found unit. 351 */ 352 if (legacy) { 353 if (pref <= keyboard[i]->kb_pref) { 354 pref = keyboard[i]->kb_pref; 355 pref_index = i; 356 } 357 } else { 358 lwkt_reltoken(&kbd_token); 359 return i; 360 } 361 } 362 363 if (!legacy) 364 KKASSERT(pref_index == -1); 365 366 lwkt_reltoken(&kbd_token); 367 return (pref_index); 368 } 369 370 /* find the keyboard specified by a driver name and a unit number */ 371 int 372 kbd_find_keyboard(char *driver, int unit) 373 { 374 return (kbd_find_keyboard2(driver, unit, 0, 1)); 375 } 376 377 /* allocate a keyboard */ 378 int 379 kbd_allocate(char *driver, int unit, void *id, kbd_callback_func_t *func, 380 void *arg) 381 { 382 int index; 383 384 if (func == NULL) 385 return -1; 386 387 lwkt_gettoken(&kbd_token); 388 389 index = kbd_find_keyboard(driver, unit); 390 if (index >= 0) { 391 if (KBD_IS_BUSY(keyboard[index])) { 392 lwkt_reltoken(&kbd_token); 393 return -1; 394 } 395 keyboard[index]->kb_token = id; 396 KBD_BUSY(keyboard[index]); 397 keyboard[index]->kb_callback.kc_func = func; 398 keyboard[index]->kb_callback.kc_arg = arg; 399 kbd_clear_state(keyboard[index]); 400 } 401 402 lwkt_reltoken(&kbd_token); 403 return index; 404 } 405 406 int 407 kbd_release(keyboard_t *kbd, void *id) 408 { 409 int error; 410 411 lwkt_gettoken(&kbd_token); 412 413 if (!KBD_IS_VALID(kbd) || !KBD_IS_BUSY(kbd)) { 414 error = EINVAL; 415 } else if (kbd->kb_token != id) { 416 error = EPERM; 417 } else { 418 kbd->kb_token = NULL; 419 KBD_UNBUSY(kbd); 420 kbd->kb_callback.kc_func = NULL; 421 kbd->kb_callback.kc_arg = NULL; 422 kbd_clear_state(kbd); 423 error = 0; 424 } 425 426 lwkt_reltoken(&kbd_token); 427 return error; 428 } 429 430 int 431 kbd_change_callback(keyboard_t *kbd, void *id, kbd_callback_func_t *func, 432 void *arg) 433 { 434 int error; 435 436 lwkt_gettoken(&kbd_token); 437 438 if (!KBD_IS_VALID(kbd) || !KBD_IS_BUSY(kbd)) { 439 error = EINVAL; 440 } else if (kbd->kb_token != id) { 441 error = EPERM; 442 } else if (func == NULL) { 443 error = EINVAL; 444 } else { 445 kbd->kb_callback.kc_func = func; 446 kbd->kb_callback.kc_arg = arg; 447 error = 0; 448 } 449 450 lwkt_reltoken(&kbd_token); 451 return error; 452 } 453 454 /* get a keyboard structure */ 455 keyboard_t * 456 kbd_get_keyboard(int index) 457 { 458 keyboard_t *kbd; 459 460 lwkt_gettoken(&kbd_token); 461 if ((index < 0) || (index >= KBD_MAXKEYBOARDS)) { 462 lwkt_reltoken(&kbd_token); 463 return NULL; 464 } 465 if (keyboard[index] == NULL) { 466 lwkt_reltoken(&kbd_token); 467 return NULL; 468 } 469 if (!KBD_IS_VALID(keyboard[index])) { 470 lwkt_reltoken(&kbd_token); 471 return NULL; 472 } 473 kbd = keyboard[index]; 474 lwkt_reltoken(&kbd_token); 475 476 return kbd; 477 } 478 479 /* 480 * The back door for the console driver; configure keyboards 481 * This function is for the kernel console to initialize keyboards 482 * at very early stage. 483 */ 484 485 int 486 kbd_configure(int flags) 487 { 488 const keyboard_driver_t **list; 489 const keyboard_driver_t *p; 490 491 lwkt_gettoken(&kbd_token); 492 493 SLIST_FOREACH(p, &keyboard_drivers, link) { 494 if (p->configure != NULL) 495 (*p->configure)(flags); 496 } 497 SET_FOREACH(list, kbddriver_set) { 498 p = *list; 499 if (p->configure != NULL) 500 (*p->configure)(flags); 501 } 502 503 lwkt_reltoken(&kbd_token); 504 return 0; 505 } 506 507 #ifdef KBD_INSTALL_CDEV 508 509 /* 510 * Virtual keyboard cdev driver functions 511 * The virtual keyboard driver dispatches driver functions to 512 * appropriate subdrivers. 513 */ 514 515 #define KBD_UNIT(dev) minor(dev) 516 517 static d_open_t genkbdopen; 518 static d_close_t genkbdclose; 519 static d_read_t genkbdread; 520 static d_write_t genkbdwrite; 521 static d_ioctl_t genkbdioctl; 522 static d_kqfilter_t genkbdkqfilter; 523 524 static void genkbdfiltdetach(struct knote *); 525 static int genkbdfilter(struct knote *, long); 526 527 static struct dev_ops kbd_ops = { 528 { "kbd", 0, D_MPSAFE }, 529 .d_open = genkbdopen, 530 .d_close = genkbdclose, 531 .d_read = genkbdread, 532 .d_write = genkbdwrite, 533 .d_ioctl = genkbdioctl, 534 .d_kqfilter = genkbdkqfilter 535 }; 536 537 /* 538 * Attach a keyboard. 539 * 540 * NOTE: The usb driver does not detach the default keyboard if it is 541 * unplugged, but calls kbd_attach() when it is plugged back in. 542 */ 543 int 544 kbd_attach(keyboard_t *kbd) 545 { 546 cdev_t dev; 547 char tbuf[MAKEDEV_MINNBUF]; 548 549 lwkt_gettoken(&kbd_token); 550 if (kbd->kb_index >= KBD_MAXKEYBOARDS) { 551 lwkt_reltoken(&kbd_token); 552 return EINVAL; 553 } 554 if (keyboard[kbd->kb_index] != kbd) { 555 lwkt_reltoken(&kbd_token); 556 return EINVAL; 557 } 558 559 if (kbd->kb_dev == NULL) { 560 kbd->kb_dev = make_dev(&kbd_ops, kbd->kb_index, 561 UID_ROOT, GID_WHEEL, 0600, "kbd%s", 562 makedev_unit_b32(tbuf, kbd->kb_index)); 563 } 564 dev = kbd->kb_dev; 565 if (dev->si_drv1 == NULL) { 566 dev->si_drv1 = kmalloc(sizeof(struct genkbd_softc), M_DEVBUF, 567 M_WAITOK); 568 } 569 bzero(dev->si_drv1, sizeof(struct genkbd_softc)); 570 571 kprintf("kbd%d at %s%d\n", kbd->kb_index, kbd->kb_name, kbd->kb_unit); 572 lwkt_reltoken(&kbd_token); 573 return 0; 574 } 575 576 int 577 kbd_detach(keyboard_t *kbd) 578 { 579 cdev_t dev; 580 581 lwkt_gettoken(&kbd_token); 582 583 if (kbd->kb_index >= KBD_MAXKEYBOARDS) { 584 lwkt_reltoken(&kbd_token); 585 return EINVAL; 586 } 587 if (keyboard[kbd->kb_index] != kbd) { 588 lwkt_reltoken(&kbd_token); 589 return EINVAL; 590 } 591 592 if ((dev = kbd->kb_dev) != NULL) { 593 if (dev->si_drv1) { 594 kfree(dev->si_drv1, M_DEVBUF); 595 dev->si_drv1 = NULL; 596 } 597 kbd->kb_dev = NULL; 598 } 599 dev_ops_remove_minor(&kbd_ops, kbd->kb_index); 600 lwkt_reltoken(&kbd_token); 601 return 0; 602 } 603 604 /* 605 * Generic keyboard cdev driver functions 606 * Keyboard subdrivers may call these functions to implement common 607 * driver functions. 608 */ 609 610 static void 611 genkbd_putc(genkbd_softc_t sc, char c) 612 { 613 unsigned int p; 614 615 lwkt_gettoken(&kbd_token); 616 617 if (sc->gkb_q_length == KB_QSIZE) { 618 lwkt_reltoken(&kbd_token); 619 return; 620 } 621 622 p = (sc->gkb_q_start + sc->gkb_q_length) % KB_QSIZE; 623 sc->gkb_q[p] = c; 624 sc->gkb_q_length++; 625 626 lwkt_reltoken(&kbd_token); 627 } 628 629 static size_t 630 genkbd_getc(genkbd_softc_t sc, char *buf, size_t len) 631 { 632 633 lwkt_gettoken(&kbd_token); 634 635 /* Determine copy size. */ 636 if (sc->gkb_q_length == 0) { 637 lwkt_reltoken(&kbd_token); 638 return (0); 639 } 640 if (len >= sc->gkb_q_length) 641 len = sc->gkb_q_length; 642 if (len >= KB_QSIZE - sc->gkb_q_start) 643 len = KB_QSIZE - sc->gkb_q_start; 644 645 /* Copy out data and progress offset. */ 646 memcpy(buf, sc->gkb_q + sc->gkb_q_start, len); 647 sc->gkb_q_start = (sc->gkb_q_start + len) % KB_QSIZE; 648 sc->gkb_q_length -= len; 649 650 lwkt_reltoken(&kbd_token); 651 return (len); 652 } 653 654 static kbd_callback_func_t genkbd_event; 655 656 static int 657 genkbdopen(struct dev_open_args *ap) 658 { 659 cdev_t dev = ap->a_head.a_dev; 660 keyboard_t *kbd; 661 genkbd_softc_t sc; 662 int i; 663 664 lwkt_gettoken(&kbd_token); 665 sc = dev->si_drv1; 666 kbd = kbd_get_keyboard(KBD_INDEX(dev)); 667 if ((sc == NULL) || (kbd == NULL) || !KBD_IS_VALID(kbd)) { 668 lwkt_reltoken(&kbd_token); 669 return ENXIO; 670 } 671 i = kbd_allocate(kbd->kb_name, kbd->kb_unit, sc, 672 genkbd_event, sc); 673 if (i < 0) { 674 lwkt_reltoken(&kbd_token); 675 return EBUSY; 676 } 677 /* assert(i == kbd->kb_index) */ 678 /* assert(kbd == kbd_get_keyboard(i)) */ 679 680 /* 681 * NOTE: even when we have successfully claimed a keyboard, 682 * the device may still be missing (!KBD_HAS_DEVICE(kbd)). 683 */ 684 685 sc->gkb_q_length = 0; 686 lwkt_reltoken(&kbd_token); 687 688 return 0; 689 } 690 691 static int 692 genkbdclose(struct dev_close_args *ap) 693 { 694 cdev_t dev = ap->a_head.a_dev; 695 keyboard_t *kbd; 696 genkbd_softc_t sc; 697 698 /* 699 * NOTE: the device may have already become invalid. 700 * kbd == NULL || !KBD_IS_VALID(kbd) 701 */ 702 lwkt_gettoken(&kbd_token); 703 sc = dev->si_drv1; 704 kbd = kbd_get_keyboard(KBD_INDEX(dev)); 705 if ((sc == NULL) || (kbd == NULL) || !KBD_IS_VALID(kbd)) { 706 /* XXX: we shall be forgiving and don't report error... */ 707 } else { 708 kbd_release(kbd, sc); 709 } 710 lwkt_reltoken(&kbd_token); 711 return 0; 712 } 713 714 static int 715 genkbdread(struct dev_read_args *ap) 716 { 717 cdev_t dev = ap->a_head.a_dev; 718 struct uio *uio = ap->a_uio; 719 keyboard_t *kbd; 720 genkbd_softc_t sc; 721 u_char buffer[KB_BUFSIZE]; 722 int len; 723 int error; 724 725 /* wait for input */ 726 lwkt_gettoken(&kbd_token); 727 sc = dev->si_drv1; 728 kbd = kbd_get_keyboard(KBD_INDEX(dev)); 729 if ((sc == NULL) || (kbd == NULL) || !KBD_IS_VALID(kbd)) { 730 lwkt_reltoken(&kbd_token); 731 return ENXIO; 732 } 733 while (sc->gkb_q_length == 0) { 734 if (ap->a_ioflag & IO_NDELAY) { /* O_NONBLOCK? */ 735 lwkt_reltoken(&kbd_token); 736 return EWOULDBLOCK; 737 } 738 sc->gkb_flags |= KB_ASLEEP; 739 error = tsleep((caddr_t)sc, PCATCH, "kbdrea", 0); 740 kbd = kbd_get_keyboard(KBD_INDEX(dev)); 741 if ((kbd == NULL) || !KBD_IS_VALID(kbd)) { 742 lwkt_reltoken(&kbd_token); 743 return ENXIO; /* our keyboard has gone... */ 744 } 745 if (error) { 746 sc->gkb_flags &= ~KB_ASLEEP; 747 lwkt_reltoken(&kbd_token); 748 return error; 749 } 750 } 751 lwkt_reltoken(&kbd_token); 752 753 /* copy as much input as possible */ 754 error = 0; 755 while (uio->uio_resid > 0) { 756 len = (int)szmin(uio->uio_resid, sizeof(buffer)); 757 len = genkbd_getc(sc, buffer, len); 758 if (len <= 0) 759 break; 760 error = uiomove(buffer, (size_t)len, uio); 761 if (error) 762 break; 763 } 764 765 return error; 766 } 767 768 static int 769 genkbdwrite(struct dev_write_args *ap) 770 { 771 cdev_t dev = ap->a_head.a_dev; 772 keyboard_t *kbd; 773 774 lwkt_gettoken(&kbd_token); 775 kbd = kbd_get_keyboard(KBD_INDEX(dev)); 776 if ((kbd == NULL) || !KBD_IS_VALID(kbd)) { 777 lwkt_reltoken(&kbd_token); 778 return ENXIO; 779 } 780 lwkt_reltoken(&kbd_token); 781 return ENODEV; 782 } 783 784 static int 785 genkbdioctl(struct dev_ioctl_args *ap) 786 { 787 cdev_t dev = ap->a_head.a_dev; 788 keyboard_t *kbd; 789 int error; 790 791 lwkt_gettoken(&kbd_token); 792 kbd = kbd_get_keyboard(KBD_INDEX(dev)); 793 if ((kbd == NULL) || !KBD_IS_VALID(kbd)) { 794 lwkt_reltoken(&kbd_token); 795 return ENXIO; 796 } 797 error = kbd_ioctl(kbd, ap->a_cmd, ap->a_data); 798 if (error == ENOIOCTL) 799 error = ENODEV; 800 801 lwkt_reltoken(&kbd_token); 802 return error; 803 } 804 805 static struct filterops genkbdfiltops = 806 { FILTEROP_ISFD, NULL, genkbdfiltdetach, genkbdfilter }; 807 808 static int 809 genkbdkqfilter(struct dev_kqfilter_args *ap) 810 { 811 cdev_t dev = ap->a_head.a_dev; 812 struct knote *kn = ap->a_kn; 813 genkbd_softc_t sc; 814 struct klist *klist; 815 816 ap->a_result = 0; 817 818 switch (kn->kn_filter) { 819 case EVFILT_READ: 820 kn->kn_fop = &genkbdfiltops; 821 kn->kn_hook = (caddr_t)dev; 822 break; 823 default: 824 ap->a_result = EOPNOTSUPP; 825 return (0); 826 } 827 828 sc = dev->si_drv1; 829 klist = &sc->gkb_rkq.ki_note; 830 knote_insert(klist, kn); 831 832 return (0); 833 } 834 835 static void 836 genkbdfiltdetach(struct knote *kn) 837 { 838 cdev_t dev = (cdev_t)kn->kn_hook; 839 genkbd_softc_t sc; 840 struct klist *klist; 841 842 sc = dev->si_drv1; 843 klist = &sc->gkb_rkq.ki_note; 844 knote_remove(klist, kn); 845 } 846 847 static int 848 genkbdfilter(struct knote *kn, long hint) 849 { 850 cdev_t dev = (cdev_t)kn->kn_hook; 851 keyboard_t *kbd; 852 genkbd_softc_t sc; 853 int ready = 0; 854 855 lwkt_gettoken(&kbd_token); 856 sc = dev->si_drv1; 857 kbd = kbd_get_keyboard(KBD_INDEX(dev)); 858 if ((sc == NULL) || (kbd == NULL) || !KBD_IS_VALID(kbd)) { 859 /* The keyboard has gone */ 860 kn->kn_flags |= (EV_EOF | EV_NODATA); 861 ready = 1; 862 } else { 863 if (sc->gkb_q_length > 0) 864 ready = 1; 865 } 866 lwkt_reltoken(&kbd_token); 867 868 return (ready); 869 } 870 871 static int 872 genkbd_event(keyboard_t *kbd, int event, void *arg) 873 { 874 genkbd_softc_t sc; 875 size_t len; 876 u_char *cp; 877 int mode; 878 int c; 879 880 lwkt_gettoken(&kbd_token); 881 /* assert(KBD_IS_VALID(kbd)) */ 882 sc = (genkbd_softc_t)arg; 883 884 switch (event) { 885 case KBDIO_KEYINPUT: 886 break; 887 case KBDIO_UNLOADING: 888 /* the keyboard is going... */ 889 kbd_release(kbd, sc); 890 if (sc->gkb_flags & KB_ASLEEP) { 891 sc->gkb_flags &= ~KB_ASLEEP; 892 wakeup((caddr_t)sc); 893 } 894 KNOTE(&sc->gkb_rkq.ki_note, 0); 895 lwkt_reltoken(&kbd_token); 896 return 0; 897 default: 898 lwkt_reltoken(&kbd_token); 899 return EINVAL; 900 } 901 902 /* obtain the current key input mode */ 903 if (kbd_ioctl(kbd, KDGKBMODE, (caddr_t)&mode)) 904 mode = K_XLATE; 905 906 /* read all pending input */ 907 while (kbd_check_char(kbd)) { 908 c = kbd_read_char(kbd, FALSE); 909 if (c == NOKEY) 910 continue; 911 if (c == ERRKEY) /* XXX: ring bell? */ 912 continue; 913 if (!KBD_IS_BUSY(kbd)) 914 /* the device is not open, discard the input */ 915 continue; 916 917 /* store the byte as is for K_RAW and K_CODE modes */ 918 if (mode != K_XLATE) { 919 genkbd_putc(sc, KEYCHAR(c)); 920 continue; 921 } 922 923 /* K_XLATE */ 924 if (c & RELKEY) /* key release is ignored */ 925 continue; 926 927 /* process special keys; most of them are just ignored... */ 928 if (c & SPCLKEY) { 929 switch (KEYCHAR(c)) { 930 default: 931 /* ignore them... */ 932 continue; 933 case BTAB: /* a backtab: ESC [ Z */ 934 genkbd_putc(sc, 0x1b); 935 genkbd_putc(sc, '['); 936 genkbd_putc(sc, 'Z'); 937 continue; 938 } 939 } 940 941 /* normal chars, normal chars with the META, function keys */ 942 switch (KEYFLAGS(c)) { 943 case 0: /* a normal char */ 944 genkbd_putc(sc, KEYCHAR(c)); 945 break; 946 case MKEY: /* the META flag: prepend ESC */ 947 genkbd_putc(sc, 0x1b); 948 genkbd_putc(sc, KEYCHAR(c)); 949 break; 950 case FKEY | SPCLKEY: /* a function key, return string */ 951 cp = kbd_get_fkeystr(kbd, KEYCHAR(c), &len); 952 if (cp != NULL) { 953 while (len-- > 0) 954 genkbd_putc(sc, *cp++); 955 } 956 break; 957 } 958 } 959 960 /* wake up sleeping/polling processes */ 961 if (sc->gkb_q_length > 0) { 962 if (sc->gkb_flags & KB_ASLEEP) { 963 sc->gkb_flags &= ~KB_ASLEEP; 964 wakeup((caddr_t)sc); 965 } 966 KNOTE(&sc->gkb_rkq.ki_note, 0); 967 } 968 969 lwkt_reltoken(&kbd_token); 970 return 0; 971 } 972 973 #endif /* KBD_INSTALL_CDEV */ 974 975 /* 976 * Generic low-level keyboard functions 977 * The low-level functions in the keyboard subdriver may use these 978 * functions. 979 */ 980 981 int 982 genkbd_commonioctl(keyboard_t *kbd, u_long cmd, caddr_t arg) 983 { 984 keyarg_t *keyp; 985 fkeyarg_t *fkeyp; 986 int i; 987 988 lwkt_gettoken(&kbd_token); 989 switch (cmd) { 990 991 case KDGKBINFO: /* get keyboard information */ 992 ((keyboard_info_t *)arg)->kb_index = kbd->kb_index; 993 i = imin(strlen(kbd->kb_name) + 1, 994 sizeof(((keyboard_info_t *)arg)->kb_name)); 995 bcopy(kbd->kb_name, ((keyboard_info_t *)arg)->kb_name, i); 996 ((keyboard_info_t *)arg)->kb_unit = kbd->kb_unit; 997 ((keyboard_info_t *)arg)->kb_type = kbd->kb_type; 998 ((keyboard_info_t *)arg)->kb_config = kbd->kb_config; 999 ((keyboard_info_t *)arg)->kb_flags = kbd->kb_flags; 1000 break; 1001 1002 case KDGKBTYPE: /* get keyboard type */ 1003 *(int *)arg = kbd->kb_type; 1004 break; 1005 1006 case KDGETREPEAT: /* get keyboard repeat rate */ 1007 ((int *)arg)[0] = kbd->kb_delay1; 1008 ((int *)arg)[1] = kbd->kb_delay2; 1009 break; 1010 1011 case GIO_KEYMAP: /* get keyboard translation table */ 1012 bcopy(kbd->kb_keymap, arg, sizeof(*kbd->kb_keymap)); 1013 break; 1014 case PIO_KEYMAP: /* set keyboard translation table */ 1015 #ifndef KBD_DISABLE_KEYMAP_LOAD 1016 bzero(kbd->kb_accentmap, sizeof(*kbd->kb_accentmap)); 1017 bcopy(arg, kbd->kb_keymap, sizeof(*kbd->kb_keymap)); 1018 break; 1019 #else 1020 lwkt_reltoken(&kbd_token); 1021 return ENODEV; 1022 #endif 1023 1024 case GIO_KEYMAPENT: /* get keyboard translation table entry */ 1025 keyp = (keyarg_t *)arg; 1026 if (keyp->keynum >= sizeof(kbd->kb_keymap->key) 1027 /sizeof(kbd->kb_keymap->key[0])) { 1028 lwkt_reltoken(&kbd_token); 1029 return EINVAL; 1030 } 1031 bcopy(&kbd->kb_keymap->key[keyp->keynum], &keyp->key, 1032 sizeof(keyp->key)); 1033 break; 1034 case PIO_KEYMAPENT: /* set keyboard translation table entry */ 1035 #ifndef KBD_DISABLE_KEYMAP_LOAD 1036 keyp = (keyarg_t *)arg; 1037 if (keyp->keynum >= sizeof(kbd->kb_keymap->key) 1038 /sizeof(kbd->kb_keymap->key[0])) { 1039 lwkt_reltoken(&kbd_token); 1040 return EINVAL; 1041 } 1042 bcopy(&keyp->key, &kbd->kb_keymap->key[keyp->keynum], 1043 sizeof(keyp->key)); 1044 break; 1045 #else 1046 lwkt_reltoken(&kbd_token); 1047 return ENODEV; 1048 #endif 1049 1050 case GIO_DEADKEYMAP: /* get accent key translation table */ 1051 bcopy(kbd->kb_accentmap, arg, sizeof(*kbd->kb_accentmap)); 1052 break; 1053 case PIO_DEADKEYMAP: /* set accent key translation table */ 1054 #ifndef KBD_DISABLE_KEYMAP_LOAD 1055 bcopy(arg, kbd->kb_accentmap, sizeof(*kbd->kb_accentmap)); 1056 break; 1057 #else 1058 lwkt_reltoken(&kbd_token); 1059 return ENODEV; 1060 #endif 1061 1062 case GETFKEY: /* get functionkey string */ 1063 fkeyp = (fkeyarg_t *)arg; 1064 if (fkeyp->keynum >= kbd->kb_fkeytab_size) { 1065 lwkt_reltoken(&kbd_token); 1066 return EINVAL; 1067 } 1068 bcopy(kbd->kb_fkeytab[fkeyp->keynum].str, fkeyp->keydef, 1069 kbd->kb_fkeytab[fkeyp->keynum].len); 1070 fkeyp->flen = kbd->kb_fkeytab[fkeyp->keynum].len; 1071 break; 1072 case SETFKEY: /* set functionkey string */ 1073 #ifndef KBD_DISABLE_KEYMAP_LOAD 1074 fkeyp = (fkeyarg_t *)arg; 1075 if (fkeyp->keynum >= kbd->kb_fkeytab_size) { 1076 lwkt_reltoken(&kbd_token); 1077 return EINVAL; 1078 } 1079 kbd->kb_fkeytab[fkeyp->keynum].len = imin(fkeyp->flen, MAXFK); 1080 bcopy(fkeyp->keydef, kbd->kb_fkeytab[fkeyp->keynum].str, 1081 kbd->kb_fkeytab[fkeyp->keynum].len); 1082 break; 1083 #else 1084 lwkt_reltoken(&kbd_token); 1085 return ENODEV; 1086 #endif 1087 1088 default: 1089 lwkt_reltoken(&kbd_token); 1090 return ENOIOCTL; 1091 } 1092 1093 lwkt_reltoken(&kbd_token); 1094 return 0; 1095 } 1096 1097 /* get a pointer to the string associated with the given function key */ 1098 u_char * 1099 genkbd_get_fkeystr(keyboard_t *kbd, int fkey, size_t *len) 1100 { 1101 u_char *ch; 1102 1103 if (kbd == NULL) 1104 return NULL; 1105 1106 lwkt_gettoken(&kbd_token); 1107 fkey -= F_FN; 1108 if (fkey > kbd->kb_fkeytab_size) { 1109 lwkt_reltoken(&kbd_token); 1110 return NULL; 1111 } 1112 *len = kbd->kb_fkeytab[fkey].len; 1113 ch = kbd->kb_fkeytab[fkey].str; 1114 1115 lwkt_reltoken(&kbd_token); 1116 return ch; 1117 } 1118 1119 /* diagnostic dump */ 1120 static char * 1121 get_kbd_type_name(int type) 1122 { 1123 static struct { 1124 int type; 1125 char *name; 1126 } name_table[] = { 1127 { KB_84, "AT 84" }, 1128 { KB_101, "AT 101/102" }, 1129 { KB_OTHER, "generic" }, 1130 }; 1131 int i; 1132 1133 for (i = 0; i < NELEM(name_table); ++i) { 1134 if (type == name_table[i].type) 1135 return name_table[i].name; 1136 } 1137 return "unknown"; 1138 } 1139 1140 void 1141 genkbd_diag(keyboard_t *kbd, int level) 1142 { 1143 if (level > 0) { 1144 kprintf("kbd%d: %s%d, %s (%d), config:0x%x, flags:0x%x", 1145 kbd->kb_index, kbd->kb_name, kbd->kb_unit, 1146 get_kbd_type_name(kbd->kb_type), kbd->kb_type, 1147 kbd->kb_config, kbd->kb_flags); 1148 if (kbd->kb_io_base > 0) 1149 kprintf(", port:0x%x-0x%x", kbd->kb_io_base, 1150 kbd->kb_io_base + kbd->kb_io_size - 1); 1151 kprintf("\n"); 1152 } 1153 } 1154 1155 #define set_lockkey_state(k, s, l) \ 1156 if (!((s) & l ## DOWN)) { \ 1157 int i; \ 1158 (s) |= l ## DOWN; \ 1159 (s) ^= l ## ED; \ 1160 i = (s) & LOCK_MASK; \ 1161 kbd_ioctl((k), KDSETLED, (caddr_t)&i); \ 1162 } 1163 1164 static u_int 1165 save_accent_key(keyboard_t *kbd, u_int key, int *accents) 1166 { 1167 int i; 1168 1169 lwkt_gettoken(&kbd_token); 1170 /* make an index into the accent map */ 1171 i = key - F_ACC + 1; 1172 if ((i > kbd->kb_accentmap->n_accs) 1173 || (kbd->kb_accentmap->acc[i - 1].accchar == 0)) { 1174 /* the index is out of range or pointing to an empty entry */ 1175 *accents = 0; 1176 lwkt_reltoken(&kbd_token); 1177 return ERRKEY; 1178 } 1179 1180 /* 1181 * If the same accent key has been hit twice, produce the accent char 1182 * itself. 1183 */ 1184 if (i == *accents) { 1185 key = kbd->kb_accentmap->acc[i - 1].accchar; 1186 *accents = 0; 1187 lwkt_reltoken(&kbd_token); 1188 return key; 1189 } 1190 1191 /* remember the index and wait for the next key */ 1192 *accents = i; 1193 lwkt_reltoken(&kbd_token); 1194 return NOKEY; 1195 } 1196 1197 static u_int 1198 make_accent_char(keyboard_t *kbd, u_int ch, int *accents) 1199 { 1200 struct acc_t *acc; 1201 int i; 1202 1203 lwkt_gettoken(&kbd_token); 1204 acc = &kbd->kb_accentmap->acc[*accents - 1]; 1205 *accents = 0; 1206 1207 /* 1208 * If the accent key is followed by the space key, 1209 * produce the accent char itself. 1210 */ 1211 if (ch == ' ') { 1212 lwkt_reltoken(&kbd_token); 1213 return acc->accchar; 1214 } 1215 1216 /* scan the accent map */ 1217 for (i = 0; i < NUM_ACCENTCHARS; ++i) { 1218 if (acc->map[i][0] == 0) /* end of table */ 1219 break; 1220 if (acc->map[i][0] == ch) { 1221 lwkt_reltoken(&kbd_token); 1222 return acc->map[i][1]; 1223 } 1224 } 1225 lwkt_reltoken(&kbd_token); 1226 /* this char cannot be accented... */ 1227 return ERRKEY; 1228 } 1229 1230 int 1231 genkbd_keyaction(keyboard_t *kbd, int keycode, int up, int *shiftstate, 1232 int *accents) 1233 { 1234 struct keyent_t *key; 1235 int state = *shiftstate; 1236 int action; 1237 int f; 1238 int i; 1239 1240 lwkt_gettoken(&kbd_token); 1241 i = keycode; 1242 f = state & (AGRS | ALKED); 1243 if ((f == AGRS1) || (f == AGRS2) || (f == ALKED)) 1244 i += ALTGR_OFFSET; 1245 key = &kbd->kb_keymap->key[i]; 1246 i = ((state & SHIFTS) ? 1 : 0) 1247 | ((state & CTLS) ? 2 : 0) 1248 | ((state & ALTS) ? 4 : 0); 1249 if (((key->flgs & FLAG_LOCK_C) && (state & CLKED)) 1250 || ((key->flgs & FLAG_LOCK_N) && (state & NLKED)) ) 1251 i ^= 1; 1252 1253 if (up) { /* break: key released */ 1254 action = kbd->kb_lastact[keycode]; 1255 kbd->kb_lastact[keycode] = NOP; 1256 switch (action) { 1257 case LSHA: 1258 if (state & SHIFTAON) { 1259 set_lockkey_state(kbd, state, ALK); 1260 state &= ~ALKDOWN; 1261 } 1262 action = LSH; 1263 /* FALL THROUGH */ 1264 case LSH: 1265 state &= ~SHIFTS1; 1266 break; 1267 case RSHA: 1268 if (state & SHIFTAON) { 1269 set_lockkey_state(kbd, state, ALK); 1270 state &= ~ALKDOWN; 1271 } 1272 action = RSH; 1273 /* FALL THROUGH */ 1274 case RSH: 1275 state &= ~SHIFTS2; 1276 break; 1277 case LCTRA: 1278 if (state & SHIFTAON) { 1279 set_lockkey_state(kbd, state, ALK); 1280 state &= ~ALKDOWN; 1281 } 1282 action = LCTR; 1283 /* FALL THROUGH */ 1284 case LCTR: 1285 state &= ~CTLS1; 1286 break; 1287 case RCTRA: 1288 if (state & SHIFTAON) { 1289 set_lockkey_state(kbd, state, ALK); 1290 state &= ~ALKDOWN; 1291 } 1292 action = RCTR; 1293 /* FALL THROUGH */ 1294 case RCTR: 1295 state &= ~CTLS2; 1296 break; 1297 case LALTA: 1298 if (state & SHIFTAON) { 1299 set_lockkey_state(kbd, state, ALK); 1300 state &= ~ALKDOWN; 1301 } 1302 action = LALT; 1303 /* FALL THROUGH */ 1304 case LALT: 1305 state &= ~ALTS1; 1306 break; 1307 case RALTA: 1308 if (state & SHIFTAON) { 1309 set_lockkey_state(kbd, state, ALK); 1310 state &= ~ALKDOWN; 1311 } 1312 action = RALT; 1313 /* FALL THROUGH */ 1314 case RALT: 1315 state &= ~ALTS2; 1316 break; 1317 case ASH: 1318 state &= ~AGRS1; 1319 break; 1320 case META: 1321 state &= ~METAS1; 1322 break; 1323 case NLK: 1324 state &= ~NLKDOWN; 1325 break; 1326 case CLK: 1327 state &= ~CLKDOWN; 1328 break; 1329 case SLK: 1330 state &= ~SLKDOWN; 1331 break; 1332 case ALK: 1333 state &= ~ALKDOWN; 1334 break; 1335 case NOP: 1336 /* release events of regular keys are not reported */ 1337 *shiftstate &= ~SHIFTAON; 1338 lwkt_reltoken(&kbd_token); 1339 return NOKEY; 1340 } 1341 *shiftstate = state & ~SHIFTAON; 1342 lwkt_reltoken(&kbd_token); 1343 return (SPCLKEY | RELKEY | action); 1344 } else { /* make: key pressed */ 1345 action = key->map[i]; 1346 state &= ~SHIFTAON; 1347 if (key->spcl & (0x80 >> i)) { 1348 /* special keys */ 1349 if (kbd->kb_lastact[keycode] == NOP) 1350 kbd->kb_lastact[keycode] = action; 1351 if (kbd->kb_lastact[keycode] != action) 1352 action = NOP; 1353 switch (action) { 1354 /* LOCKING KEYS */ 1355 case NLK: 1356 set_lockkey_state(kbd, state, NLK); 1357 break; 1358 case CLK: 1359 set_lockkey_state(kbd, state, CLK); 1360 break; 1361 case SLK: 1362 set_lockkey_state(kbd, state, SLK); 1363 break; 1364 case ALK: 1365 set_lockkey_state(kbd, state, ALK); 1366 break; 1367 /* NON-LOCKING KEYS */ 1368 case SPSC: case RBT: case SUSP: case STBY: 1369 case DBG: case NEXT: case PREV: case PNC: 1370 case HALT: case PDWN: 1371 *accents = 0; 1372 break; 1373 case BTAB: 1374 *accents = 0; 1375 action |= BKEY; 1376 break; 1377 case LSHA: 1378 state |= SHIFTAON; 1379 action = LSH; 1380 /* FALL THROUGH */ 1381 case LSH: 1382 state |= SHIFTS1; 1383 break; 1384 case RSHA: 1385 state |= SHIFTAON; 1386 action = RSH; 1387 /* FALL THROUGH */ 1388 case RSH: 1389 state |= SHIFTS2; 1390 break; 1391 case LCTRA: 1392 state |= SHIFTAON; 1393 action = LCTR; 1394 /* FALL THROUGH */ 1395 case LCTR: 1396 state |= CTLS1; 1397 break; 1398 case RCTRA: 1399 state |= SHIFTAON; 1400 action = RCTR; 1401 /* FALL THROUGH */ 1402 case RCTR: 1403 state |= CTLS2; 1404 break; 1405 case LALTA: 1406 state |= SHIFTAON; 1407 action = LALT; 1408 /* FALL THROUGH */ 1409 case LALT: 1410 state |= ALTS1; 1411 break; 1412 case RALTA: 1413 state |= SHIFTAON; 1414 action = RALT; 1415 /* FALL THROUGH */ 1416 case RALT: 1417 state |= ALTS2; 1418 break; 1419 case ASH: 1420 state |= AGRS1; 1421 break; 1422 case META: 1423 state |= METAS1; 1424 break; 1425 case NOP: 1426 *shiftstate = state; 1427 lwkt_reltoken(&kbd_token); 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 lwkt_reltoken(&kbd_token); 1439 return action; 1440 default: 1441 if (state & METAS) { 1442 lwkt_reltoken(&kbd_token); 1443 return (action | MKEY); 1444 } else { 1445 lwkt_reltoken(&kbd_token); 1446 return action; 1447 } 1448 } 1449 /* NOT REACHED */ 1450 } 1451 /* other special keys */ 1452 if (*accents > 0) { 1453 *accents = 0; 1454 lwkt_reltoken(&kbd_token); 1455 return ERRKEY; 1456 } 1457 if (action >= F_FN && action <= L_FN) 1458 action |= FKEY; 1459 /* XXX: return fkey string for the FKEY? */ 1460 lwkt_reltoken(&kbd_token); 1461 return (SPCLKEY | action); 1462 } 1463 *shiftstate = state; 1464 lwkt_reltoken(&kbd_token); 1465 return (SPCLKEY | action); 1466 } else { 1467 /* regular keys */ 1468 kbd->kb_lastact[keycode] = NOP; 1469 *shiftstate = state; 1470 if (*accents > 0) { 1471 /* make an accented char */ 1472 action = make_accent_char(kbd, action, accents); 1473 if (action == ERRKEY) { 1474 lwkt_reltoken(&kbd_token); 1475 return action; 1476 } 1477 } 1478 if (state & METAS) 1479 action |= MKEY; 1480 lwkt_reltoken(&kbd_token); 1481 return action; 1482 } 1483 } 1484 /* NOT REACHED */ 1485 lwkt_reltoken(&kbd_token); 1486 } 1487