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 * Interrupt note: keyboards use clist functions and since usb keyboard 34 * interrupts are not protected by spltty(), we must use a critical section 35 * to protect against corruption. 36 * XXX: this keyboard driver doesn't use clist functions anymore! 37 * 38 * MPSAFE NOTE: all keyboards could easily be put under a different global token. 39 */ 40 41 #include "opt_kbd.h" 42 43 #include <sys/param.h> 44 #include <sys/systm.h> 45 #include <sys/kernel.h> 46 #include <sys/malloc.h> 47 #include <sys/conf.h> 48 #include <sys/proc.h> 49 #include <sys/tty.h> 50 #include <sys/event.h> 51 #include <sys/vnode.h> 52 #include <sys/uio.h> 53 #include <sys/thread.h> 54 #include <sys/thread2.h> 55 56 #include <machine/console.h> 57 58 #include "kbdreg.h" 59 60 #if 0 61 #define lwkt_gettoken(x) 62 #define lwkt_reltoken(x) 63 #endif 64 65 #define KBD_INDEX(dev) minor(dev) 66 67 #define KB_QSIZE 512 68 #define KB_BUFSIZE 64 69 70 struct genkbd_softc { 71 int gkb_flags; /* flag/status bits */ 72 #define KB_ASLEEP (1 << 0) 73 struct kqinfo gkb_rkq; 74 char gkb_q[KB_QSIZE]; /* input queue */ 75 unsigned int gkb_q_start; 76 unsigned int gkb_q_length; 77 }; 78 79 typedef struct genkbd_softc *genkbd_softc_t; 80 81 static SLIST_HEAD(, keyboard_driver) keyboard_drivers = 82 SLIST_HEAD_INITIALIZER(keyboard_drivers); 83 84 SET_DECLARE(kbddriver_set, const keyboard_driver_t); 85 86 /* local arrays */ 87 88 /* 89 * We need at least one entry each in order to initialize a keyboard 90 * for the kernel console. The arrays will be increased dynamically 91 * when necessary. 92 */ 93 94 static int keyboards = 1; 95 static keyboard_t *kbd_ini; 96 static keyboard_t **keyboard = &kbd_ini; 97 static keyboard_switch_t *kbdsw_ini; 98 keyboard_switch_t **kbdsw = &kbdsw_ini; 99 100 #define ARRAY_DELTA 4 101 102 static int 103 kbd_realloc_array(void) 104 { 105 keyboard_t **new_kbd; 106 keyboard_switch_t **new_kbdsw; 107 int newsize; 108 109 lwkt_gettoken(&tty_token); 110 newsize = ((keyboards + ARRAY_DELTA)/ARRAY_DELTA)*ARRAY_DELTA; 111 new_kbd = kmalloc(sizeof(*new_kbd) * newsize, M_DEVBUF, 112 M_WAITOK | M_ZERO); 113 new_kbdsw = kmalloc(sizeof(*new_kbdsw) * newsize, M_DEVBUF, 114 M_WAITOK | M_ZERO); 115 bcopy(keyboard, new_kbd, sizeof(*keyboard)*keyboards); 116 bcopy(kbdsw, new_kbdsw, sizeof(*kbdsw)*keyboards); 117 crit_enter(); 118 if (keyboards > 1) { 119 kfree(keyboard, M_DEVBUF); 120 kfree(kbdsw, M_DEVBUF); 121 } 122 keyboard = new_kbd; 123 kbdsw = new_kbdsw; 124 keyboards = newsize; 125 crit_exit(); 126 127 if (bootverbose) 128 kprintf("kbd: new array size %d\n", keyboards); 129 130 lwkt_reltoken(&tty_token); 131 return 0; 132 } 133 134 /* 135 * Low-level keyboard driver functions. 136 * 137 * Keyboard subdrivers, such as the AT keyboard driver and the USB keyboard 138 * driver, call these functions to initialize the keyboard_t structure 139 * and register it to the virtual keyboard driver `kbd'. 140 * 141 * The reinit call is made when a driver has partially detached a keyboard 142 * but does not unregistered it, then wishes to reinitialize it later on. 143 * This is how the USB keyboard driver handles the 'default' keyboard, 144 * because unregistering the keyboard associated with the console will 145 * destroy its console association forever. 146 */ 147 void 148 kbd_reinit_struct(keyboard_t *kbd, int config, int pref) 149 { 150 lwkt_gettoken(&tty_token); 151 kbd->kb_flags |= KB_NO_DEVICE; /* device has not been found */ 152 kbd->kb_config = config & ~KB_CONF_PROBE_ONLY; 153 kbd->kb_led = 0; /* unknown */ 154 kbd->kb_data = NULL; 155 kbd->kb_keymap = NULL; 156 kbd->kb_accentmap = NULL; 157 kbd->kb_fkeytab = NULL; 158 kbd->kb_fkeytab_size = 0; 159 kbd->kb_delay1 = KB_DELAY1; /* these values are advisory only */ 160 kbd->kb_delay2 = KB_DELAY2; 161 kbd->kb_count = 0; 162 kbd->kb_pref = pref; 163 bzero(kbd->kb_lastact, sizeof(kbd->kb_lastact)); 164 lwkt_reltoken(&tty_token); 165 } 166 167 /* initialize the keyboard_t structure */ 168 void 169 kbd_init_struct(keyboard_t *kbd, char *name, int type, int unit, int config, 170 int pref, int port, int port_size) 171 { 172 lwkt_gettoken(&tty_token); 173 kbd->kb_flags = 0; 174 kbd->kb_name = name; 175 kbd->kb_type = type; 176 kbd->kb_unit = unit; 177 kbd->kb_io_base = port; 178 kbd->kb_io_size = port_size; 179 kbd_reinit_struct(kbd, config, pref); 180 lockinit(&kbd->kb_lock, name, 0, LK_CANRECURSE); 181 lwkt_reltoken(&tty_token); 182 } 183 184 void 185 kbd_set_maps(keyboard_t *kbd, keymap_t *keymap, accentmap_t *accmap, 186 fkeytab_t *fkeymap, int fkeymap_size) 187 { 188 lwkt_gettoken(&tty_token); 189 kbd->kb_keymap = keymap; 190 kbd->kb_accentmap = accmap; 191 kbd->kb_fkeytab = fkeymap; 192 kbd->kb_fkeytab_size = fkeymap_size; 193 lwkt_reltoken(&tty_token); 194 } 195 196 /* declare a new keyboard driver */ 197 int 198 kbd_add_driver(keyboard_driver_t *driver) 199 { 200 lwkt_gettoken(&tty_token); 201 if (SLIST_NEXT(driver, link)) { 202 lwkt_reltoken(&tty_token); 203 return EINVAL; 204 } 205 SLIST_INSERT_HEAD(&keyboard_drivers, driver, link); 206 lwkt_reltoken(&tty_token); 207 return 0; 208 } 209 210 int 211 kbd_delete_driver(keyboard_driver_t *driver) 212 { 213 lwkt_gettoken(&tty_token); 214 SLIST_REMOVE(&keyboard_drivers, driver, keyboard_driver, link); 215 SLIST_NEXT(driver, link) = NULL; 216 lwkt_reltoken(&tty_token); 217 return 0; 218 } 219 220 /* register a keyboard and associate it with a function table */ 221 int 222 kbd_register(keyboard_t *kbd) 223 { 224 const keyboard_driver_t **list; 225 const keyboard_driver_t *p; 226 keyboard_t *mux; 227 keyboard_info_t ki; 228 int index; 229 230 lwkt_gettoken(&tty_token); 231 mux = kbd_get_keyboard(kbd_find_keyboard("kbdmux", -1)); 232 233 for (index = 0; index < keyboards; ++index) { 234 if (keyboard[index] == NULL) 235 break; 236 } 237 if (index >= keyboards) { 238 if (kbd_realloc_array()) { 239 lwkt_reltoken(&tty_token); 240 return -1; 241 } 242 } 243 244 kbd->kb_index = index; 245 KBD_UNBUSY(kbd); 246 KBD_VALID(kbd); 247 kbd->kb_active = 0; /* disabled until someone calls kbd_enable() */ 248 kbd->kb_token = NULL; 249 kbd->kb_callback.kc_func = NULL; 250 kbd->kb_callback.kc_arg = NULL; 251 callout_init_mp(&kbd->kb_atkbd_timeout_ch); 252 253 SLIST_FOREACH(p, &keyboard_drivers, link) { 254 if (strcmp(p->name, kbd->kb_name) == 0) { 255 keyboard[index] = kbd; 256 kbdsw[index] = p->kbdsw; 257 258 if (mux != NULL) { 259 bzero(&ki, sizeof(ki)); 260 strcpy(ki.kb_name, kbd->kb_name); 261 ki.kb_unit = kbd->kb_unit; 262 kbd_ioctl(mux, KBADDKBD, (caddr_t) &ki); 263 } 264 265 lwkt_reltoken(&tty_token); 266 return index; 267 } 268 } 269 SET_FOREACH(list, kbddriver_set) { 270 p = *list; 271 if (strcmp(p->name, kbd->kb_name) == 0) { 272 keyboard[index] = kbd; 273 kbdsw[index] = p->kbdsw; 274 275 if (mux != NULL) { 276 bzero(&ki, sizeof(ki)); 277 strcpy(ki.kb_name, kbd->kb_name); 278 ki.kb_unit = kbd->kb_unit; 279 kbd_ioctl(mux, KBADDKBD, (caddr_t) &ki); 280 } 281 282 lwkt_reltoken(&tty_token); 283 return index; 284 } 285 } 286 287 lwkt_reltoken(&tty_token); 288 return -1; 289 } 290 291 int 292 kbd_unregister(keyboard_t *kbd) 293 { 294 int error; 295 296 KBD_LOCK_ASSERT(kbd); 297 lwkt_gettoken(&tty_token); 298 if ((kbd->kb_index < 0) || (kbd->kb_index >= keyboards)) { 299 lwkt_reltoken(&tty_token); 300 return ENOENT; 301 } 302 if (keyboard[kbd->kb_index] != kbd) { 303 lwkt_reltoken(&tty_token); 304 return ENOENT; 305 } 306 307 crit_enter(); 308 callout_stop(&kbd->kb_atkbd_timeout_ch); 309 if (KBD_IS_BUSY(kbd)) { 310 error = (*kbd->kb_callback.kc_func)(kbd, KBDIO_UNLOADING, 311 kbd->kb_callback.kc_arg); 312 if (error) { 313 crit_exit(); 314 lwkt_reltoken(&tty_token); 315 return error; 316 } 317 if (KBD_IS_BUSY(kbd)) { 318 crit_exit(); 319 lwkt_reltoken(&tty_token); 320 return EBUSY; 321 } 322 } 323 KBD_CONFIG_LOST(kbd); 324 KBD_INVALID(kbd); 325 keyboard[kbd->kb_index] = NULL; 326 kbdsw[kbd->kb_index] = NULL; 327 328 KBD_ALWAYS_UNLOCK(kbd); 329 lockuninit(&kbd->kb_lock); 330 331 crit_exit(); 332 lwkt_reltoken(&tty_token); 333 return 0; 334 } 335 336 /* find a funciton table by the driver name */ 337 keyboard_switch_t * 338 kbd_get_switch(char *driver) 339 { 340 const keyboard_driver_t **list; 341 const keyboard_driver_t *p; 342 343 lwkt_gettoken(&tty_token); 344 345 SLIST_FOREACH(p, &keyboard_drivers, link) { 346 if (strcmp(p->name, driver) == 0) { 347 lwkt_reltoken(&tty_token); 348 return p->kbdsw; 349 } 350 } 351 SET_FOREACH(list, kbddriver_set) { 352 p = *list; 353 if (strcmp(p->name, driver) == 0) { 354 lwkt_reltoken(&tty_token); 355 return p->kbdsw; 356 } 357 } 358 359 lwkt_reltoken(&tty_token); 360 return NULL; 361 } 362 363 /* 364 * Keyboard client functions 365 * Keyboard clients, such as the console driver `syscons' and the keyboard 366 * cdev driver, use these functions to claim and release a keyboard for 367 * exclusive use. 368 */ 369 /* 370 * find the keyboard specified by a driver name and a unit number 371 * starting at given index 372 */ 373 int 374 kbd_find_keyboard2(char *driver, int unit, int index, int legacy) 375 { 376 int i; 377 int pref; 378 int pref_index; 379 380 pref = 0; 381 pref_index = -1; 382 383 lwkt_gettoken(&tty_token); 384 if ((index < 0) || (index >= keyboards)) { 385 lwkt_reltoken(&tty_token); 386 return (-1); 387 } 388 389 for (i = index; i < keyboards; ++i) { 390 if (keyboard[i] == NULL) 391 continue; 392 if (!KBD_IS_VALID(keyboard[i])) 393 continue; 394 if (strcmp("*", driver) && strcmp(keyboard[i]->kb_name, driver)) 395 continue; 396 if ((unit != -1) && (keyboard[i]->kb_unit != unit)) 397 continue; 398 /* 399 * If we are in legacy mode, we do the old preference magic and 400 * don't return on the first found unit. 401 */ 402 if (legacy) { 403 if (pref <= keyboard[i]->kb_pref) { 404 pref = keyboard[i]->kb_pref; 405 pref_index = i; 406 } 407 } else { 408 lwkt_reltoken(&tty_token); 409 return i; 410 } 411 } 412 413 if (!legacy) 414 KKASSERT(pref_index == -1); 415 416 lwkt_reltoken(&tty_token); 417 return (pref_index); 418 } 419 420 /* find the keyboard specified by a driver name and a unit number */ 421 int 422 kbd_find_keyboard(char *driver, int unit) 423 { 424 return (kbd_find_keyboard2(driver, unit, 0, 1)); 425 } 426 427 /* allocate a keyboard */ 428 int 429 kbd_allocate(char *driver, int unit, void *id, kbd_callback_func_t *func, 430 void *arg) 431 { 432 int index; 433 434 if (func == NULL) 435 return -1; 436 437 crit_enter(); 438 lwkt_gettoken(&tty_token); 439 440 index = kbd_find_keyboard(driver, unit); 441 if (index >= 0) { 442 if (KBD_IS_BUSY(keyboard[index])) { 443 crit_exit(); 444 lwkt_reltoken(&tty_token); 445 return -1; 446 } 447 keyboard[index]->kb_token = id; 448 KBD_BUSY(keyboard[index]); 449 keyboard[index]->kb_callback.kc_func = func; 450 keyboard[index]->kb_callback.kc_arg = arg; 451 kbd_clear_state(keyboard[index]); 452 } 453 454 lwkt_reltoken(&tty_token); 455 crit_exit(); 456 return index; 457 } 458 459 int 460 kbd_release(keyboard_t *kbd, void *id) 461 { 462 int error; 463 464 crit_enter(); 465 lwkt_gettoken(&tty_token); 466 467 if (!KBD_IS_VALID(kbd) || !KBD_IS_BUSY(kbd)) { 468 error = EINVAL; 469 } else if (kbd->kb_token != id) { 470 error = EPERM; 471 } else { 472 kbd->kb_token = NULL; 473 KBD_UNBUSY(kbd); 474 kbd->kb_callback.kc_func = NULL; 475 kbd->kb_callback.kc_arg = NULL; 476 kbd_clear_state(kbd); 477 error = 0; 478 } 479 480 lwkt_reltoken(&tty_token); 481 crit_exit(); 482 return error; 483 } 484 485 int 486 kbd_change_callback(keyboard_t *kbd, void *id, kbd_callback_func_t *func, 487 void *arg) 488 { 489 int error; 490 491 crit_enter(); 492 lwkt_gettoken(&tty_token); 493 494 if (!KBD_IS_VALID(kbd) || !KBD_IS_BUSY(kbd)) { 495 error = EINVAL; 496 } else if (kbd->kb_token != id) { 497 error = EPERM; 498 } else if (func == NULL) { 499 error = EINVAL; 500 } else { 501 kbd->kb_callback.kc_func = func; 502 kbd->kb_callback.kc_arg = arg; 503 error = 0; 504 } 505 506 lwkt_reltoken(&tty_token); 507 crit_exit(); 508 return error; 509 } 510 511 /* get a keyboard structure */ 512 keyboard_t * 513 kbd_get_keyboard(int index) 514 { 515 keyboard_t *kbd; 516 517 lwkt_gettoken(&tty_token); 518 if ((index < 0) || (index >= keyboards)) { 519 lwkt_reltoken(&tty_token); 520 return NULL; 521 } 522 if (keyboard[index] == NULL) { 523 lwkt_reltoken(&tty_token); 524 return NULL; 525 } 526 if (!KBD_IS_VALID(keyboard[index])) { 527 lwkt_reltoken(&tty_token); 528 return NULL; 529 } 530 kbd = keyboard[index]; 531 lwkt_reltoken(&tty_token); 532 533 return kbd; 534 } 535 536 /* 537 * The back door for the console driver; configure keyboards 538 * This function is for the kernel console to initialize keyboards 539 * at very early stage. 540 */ 541 542 int 543 kbd_configure(int flags) 544 { 545 const keyboard_driver_t **list; 546 const keyboard_driver_t *p; 547 548 lwkt_gettoken(&tty_token); 549 550 SLIST_FOREACH(p, &keyboard_drivers, link) { 551 if (p->configure != NULL) 552 (*p->configure)(flags); 553 } 554 SET_FOREACH(list, kbddriver_set) { 555 p = *list; 556 if (p->configure != NULL) 557 (*p->configure)(flags); 558 } 559 560 lwkt_reltoken(&tty_token); 561 return 0; 562 } 563 564 #ifdef KBD_INSTALL_CDEV 565 566 /* 567 * Virtual keyboard cdev driver functions 568 * The virtual keyboard driver dispatches driver functions to 569 * appropriate subdrivers. 570 */ 571 572 #define KBD_UNIT(dev) minor(dev) 573 574 static d_open_t genkbdopen; 575 static d_close_t genkbdclose; 576 static d_read_t genkbdread; 577 static d_write_t genkbdwrite; 578 static d_ioctl_t genkbdioctl; 579 static d_kqfilter_t genkbdkqfilter; 580 581 static void genkbdfiltdetach(struct knote *); 582 static int genkbdfilter(struct knote *, long); 583 584 static struct dev_ops kbd_ops = { 585 { "kbd", 0, 0 }, 586 .d_open = genkbdopen, 587 .d_close = genkbdclose, 588 .d_read = genkbdread, 589 .d_write = genkbdwrite, 590 .d_ioctl = genkbdioctl, 591 .d_kqfilter = genkbdkqfilter 592 }; 593 594 /* 595 * Attach a keyboard. 596 * 597 * NOTE: The usb driver does not detach the default keyboard if it is 598 * unplugged, but calls kbd_attach() when it is plugged back in. 599 */ 600 int 601 kbd_attach(keyboard_t *kbd) 602 { 603 cdev_t dev; 604 605 lwkt_gettoken(&tty_token); 606 if (kbd->kb_index >= keyboards) { 607 lwkt_reltoken(&tty_token); 608 return EINVAL; 609 } 610 if (keyboard[kbd->kb_index] != kbd) { 611 lwkt_reltoken(&tty_token); 612 return EINVAL; 613 } 614 615 if (kbd->kb_dev == NULL) { 616 kbd->kb_dev = make_dev(&kbd_ops, kbd->kb_index, 617 UID_ROOT, GID_WHEEL, 0600, 618 "kbd%r", kbd->kb_index); 619 } 620 dev = kbd->kb_dev; 621 if (dev->si_drv1 == NULL) { 622 dev->si_drv1 = kmalloc(sizeof(struct genkbd_softc), M_DEVBUF, 623 M_WAITOK); 624 } 625 bzero(dev->si_drv1, sizeof(struct genkbd_softc)); 626 627 kprintf("kbd%d at %s%d\n", kbd->kb_index, kbd->kb_name, kbd->kb_unit); 628 lwkt_reltoken(&tty_token); 629 return 0; 630 } 631 632 int 633 kbd_detach(keyboard_t *kbd) 634 { 635 cdev_t dev; 636 637 lwkt_gettoken(&tty_token); 638 639 if (kbd->kb_index >= keyboards) { 640 lwkt_reltoken(&tty_token); 641 return EINVAL; 642 } 643 if (keyboard[kbd->kb_index] != kbd) { 644 lwkt_reltoken(&tty_token); 645 return EINVAL; 646 } 647 648 if ((dev = kbd->kb_dev) != NULL) { 649 if (dev->si_drv1) { 650 kfree(dev->si_drv1, M_DEVBUF); 651 dev->si_drv1 = NULL; 652 } 653 kbd->kb_dev = NULL; 654 } 655 dev_ops_remove_minor(&kbd_ops, kbd->kb_index); 656 lwkt_reltoken(&tty_token); 657 return 0; 658 } 659 660 /* 661 * Generic keyboard cdev driver functions 662 * Keyboard subdrivers may call these functions to implement common 663 * driver functions. 664 */ 665 666 static void 667 genkbd_putc(genkbd_softc_t sc, char c) 668 { 669 unsigned int p; 670 671 lwkt_gettoken(&tty_token); 672 673 if (sc->gkb_q_length == KB_QSIZE) { 674 lwkt_reltoken(&tty_token); 675 return; 676 } 677 678 p = (sc->gkb_q_start + sc->gkb_q_length) % KB_QSIZE; 679 sc->gkb_q[p] = c; 680 sc->gkb_q_length++; 681 682 lwkt_reltoken(&tty_token); 683 } 684 685 static size_t 686 genkbd_getc(genkbd_softc_t sc, char *buf, size_t len) 687 { 688 689 lwkt_gettoken(&tty_token); 690 691 /* Determine copy size. */ 692 if (sc->gkb_q_length == 0) { 693 lwkt_reltoken(&tty_token); 694 return (0); 695 } 696 if (len >= sc->gkb_q_length) 697 len = sc->gkb_q_length; 698 if (len >= KB_QSIZE - sc->gkb_q_start) 699 len = KB_QSIZE - sc->gkb_q_start; 700 701 /* Copy out data and progress offset. */ 702 memcpy(buf, sc->gkb_q + sc->gkb_q_start, len); 703 sc->gkb_q_start = (sc->gkb_q_start + len) % KB_QSIZE; 704 sc->gkb_q_length -= len; 705 706 lwkt_reltoken(&tty_token); 707 return (len); 708 } 709 710 static kbd_callback_func_t genkbd_event; 711 712 static int 713 genkbdopen(struct dev_open_args *ap) 714 { 715 cdev_t dev = ap->a_head.a_dev; 716 keyboard_t *kbd; 717 genkbd_softc_t sc; 718 int i; 719 720 crit_enter(); 721 lwkt_gettoken(&tty_token); 722 sc = dev->si_drv1; 723 kbd = kbd_get_keyboard(KBD_INDEX(dev)); 724 if ((sc == NULL) || (kbd == NULL) || !KBD_IS_VALID(kbd)) { 725 lwkt_reltoken(&tty_token); 726 crit_exit(); 727 return ENXIO; 728 } 729 i = kbd_allocate(kbd->kb_name, kbd->kb_unit, sc, 730 genkbd_event, sc); 731 if (i < 0) { 732 lwkt_reltoken(&tty_token); 733 crit_exit(); 734 return EBUSY; 735 } 736 /* assert(i == kbd->kb_index) */ 737 /* assert(kbd == kbd_get_keyboard(i)) */ 738 739 /* 740 * NOTE: even when we have successfully claimed a keyboard, 741 * the device may still be missing (!KBD_HAS_DEVICE(kbd)). 742 */ 743 744 sc->gkb_q_length = 0; 745 lwkt_reltoken(&tty_token); 746 crit_exit(); 747 748 return 0; 749 } 750 751 static int 752 genkbdclose(struct dev_close_args *ap) 753 { 754 cdev_t dev = ap->a_head.a_dev; 755 keyboard_t *kbd; 756 genkbd_softc_t sc; 757 758 /* 759 * NOTE: the device may have already become invalid. 760 * kbd == NULL || !KBD_IS_VALID(kbd) 761 */ 762 crit_enter(); 763 lwkt_gettoken(&tty_token); 764 sc = dev->si_drv1; 765 kbd = kbd_get_keyboard(KBD_INDEX(dev)); 766 if ((sc == NULL) || (kbd == NULL) || !KBD_IS_VALID(kbd)) { 767 /* XXX: we shall be forgiving and don't report error... */ 768 } else { 769 kbd_release(kbd, sc); 770 } 771 lwkt_reltoken(&tty_token); 772 crit_exit(); 773 return 0; 774 } 775 776 static int 777 genkbdread(struct dev_read_args *ap) 778 { 779 cdev_t dev = ap->a_head.a_dev; 780 struct uio *uio = ap->a_uio; 781 keyboard_t *kbd; 782 genkbd_softc_t sc; 783 u_char buffer[KB_BUFSIZE]; 784 int len; 785 int error; 786 787 /* wait for input */ 788 crit_enter(); 789 lwkt_gettoken(&tty_token); 790 sc = dev->si_drv1; 791 kbd = kbd_get_keyboard(KBD_INDEX(dev)); 792 if ((sc == NULL) || (kbd == NULL) || !KBD_IS_VALID(kbd)) { 793 lwkt_reltoken(&tty_token); 794 crit_exit(); 795 return ENXIO; 796 } 797 while (sc->gkb_q_length == 0) { 798 if (ap->a_ioflag & IO_NDELAY) { /* O_NONBLOCK? */ 799 lwkt_reltoken(&tty_token); 800 crit_exit(); 801 return EWOULDBLOCK; 802 } 803 sc->gkb_flags |= KB_ASLEEP; 804 error = tsleep((caddr_t)sc, PCATCH, "kbdrea", 0); 805 kbd = kbd_get_keyboard(KBD_INDEX(dev)); 806 if ((kbd == NULL) || !KBD_IS_VALID(kbd)) { 807 lwkt_reltoken(&tty_token); 808 crit_exit(); 809 return ENXIO; /* our keyboard has gone... */ 810 } 811 if (error) { 812 sc->gkb_flags &= ~KB_ASLEEP; 813 lwkt_reltoken(&tty_token); 814 crit_exit(); 815 return error; 816 } 817 } 818 lwkt_reltoken(&tty_token); 819 crit_exit(); 820 821 /* copy as much input as possible */ 822 error = 0; 823 while (uio->uio_resid > 0) { 824 len = (int)szmin(uio->uio_resid, sizeof(buffer)); 825 len = genkbd_getc(sc, buffer, len); 826 if (len <= 0) 827 break; 828 error = uiomove(buffer, (size_t)len, uio); 829 if (error) 830 break; 831 } 832 833 return error; 834 } 835 836 static int 837 genkbdwrite(struct dev_write_args *ap) 838 { 839 cdev_t dev = ap->a_head.a_dev; 840 keyboard_t *kbd; 841 842 lwkt_gettoken(&tty_token); 843 kbd = kbd_get_keyboard(KBD_INDEX(dev)); 844 if ((kbd == NULL) || !KBD_IS_VALID(kbd)) { 845 lwkt_reltoken(&tty_token); 846 return ENXIO; 847 } 848 lwkt_reltoken(&tty_token); 849 return ENODEV; 850 } 851 852 static int 853 genkbdioctl(struct dev_ioctl_args *ap) 854 { 855 cdev_t dev = ap->a_head.a_dev; 856 keyboard_t *kbd; 857 int error; 858 859 lwkt_gettoken(&tty_token); 860 kbd = kbd_get_keyboard(KBD_INDEX(dev)); 861 if ((kbd == NULL) || !KBD_IS_VALID(kbd)) { 862 lwkt_reltoken(&tty_token); 863 return ENXIO; 864 } 865 error = kbd_ioctl(kbd, ap->a_cmd, ap->a_data); 866 if (error == ENOIOCTL) 867 error = ENODEV; 868 869 lwkt_reltoken(&tty_token); 870 return error; 871 } 872 873 static struct filterops genkbdfiltops = 874 { FILTEROP_ISFD, NULL, genkbdfiltdetach, genkbdfilter }; 875 876 static int 877 genkbdkqfilter(struct dev_kqfilter_args *ap) 878 { 879 cdev_t dev = ap->a_head.a_dev; 880 struct knote *kn = ap->a_kn; 881 genkbd_softc_t sc; 882 struct klist *klist; 883 884 ap->a_result = 0; 885 886 switch (kn->kn_filter) { 887 case EVFILT_READ: 888 kn->kn_fop = &genkbdfiltops; 889 kn->kn_hook = (caddr_t)dev; 890 break; 891 default: 892 ap->a_result = EOPNOTSUPP; 893 return (0); 894 } 895 896 sc = dev->si_drv1; 897 klist = &sc->gkb_rkq.ki_note; 898 knote_insert(klist, kn); 899 900 return (0); 901 } 902 903 static void 904 genkbdfiltdetach(struct knote *kn) 905 { 906 cdev_t dev = (cdev_t)kn->kn_hook; 907 genkbd_softc_t sc; 908 struct klist *klist; 909 910 sc = dev->si_drv1; 911 klist = &sc->gkb_rkq.ki_note; 912 knote_remove(klist, kn); 913 } 914 915 static int 916 genkbdfilter(struct knote *kn, long hint) 917 { 918 cdev_t dev = (cdev_t)kn->kn_hook; 919 keyboard_t *kbd; 920 genkbd_softc_t sc; 921 int ready = 0; 922 923 crit_enter(); 924 lwkt_gettoken(&tty_token); 925 sc = dev->si_drv1; 926 kbd = kbd_get_keyboard(KBD_INDEX(dev)); 927 if ((sc == NULL) || (kbd == NULL) || !KBD_IS_VALID(kbd)) { 928 /* The keyboard has gone */ 929 kn->kn_flags |= (EV_EOF | EV_NODATA); 930 ready = 1; 931 } else { 932 if (sc->gkb_q_length > 0) 933 ready = 1; 934 } 935 lwkt_reltoken(&tty_token); 936 crit_exit(); 937 938 return (ready); 939 } 940 941 static int 942 genkbd_event(keyboard_t *kbd, int event, void *arg) 943 { 944 genkbd_softc_t sc; 945 size_t len; 946 u_char *cp; 947 int mode; 948 int c; 949 950 lwkt_gettoken(&tty_token); 951 /* assert(KBD_IS_VALID(kbd)) */ 952 sc = (genkbd_softc_t)arg; 953 954 switch (event) { 955 case KBDIO_KEYINPUT: 956 break; 957 case KBDIO_UNLOADING: 958 /* the keyboard is going... */ 959 kbd_release(kbd, sc); 960 if (sc->gkb_flags & KB_ASLEEP) { 961 sc->gkb_flags &= ~KB_ASLEEP; 962 wakeup((caddr_t)sc); 963 } 964 KNOTE(&sc->gkb_rkq.ki_note, 0); 965 lwkt_reltoken(&tty_token); 966 return 0; 967 default: 968 lwkt_reltoken(&tty_token); 969 return EINVAL; 970 } 971 972 /* obtain the current key input mode */ 973 if (kbd_ioctl(kbd, KDGKBMODE, (caddr_t)&mode)) 974 mode = K_XLATE; 975 976 /* read all pending input */ 977 while (kbd_check_char(kbd)) { 978 c = kbd_read_char(kbd, FALSE); 979 if (c == NOKEY) 980 continue; 981 if (c == ERRKEY) /* XXX: ring bell? */ 982 continue; 983 if (!KBD_IS_BUSY(kbd)) 984 /* the device is not open, discard the input */ 985 continue; 986 987 /* store the byte as is for K_RAW and K_CODE modes */ 988 if (mode != K_XLATE) { 989 genkbd_putc(sc, KEYCHAR(c)); 990 continue; 991 } 992 993 /* K_XLATE */ 994 if (c & RELKEY) /* key release is ignored */ 995 continue; 996 997 /* process special keys; most of them are just ignored... */ 998 if (c & SPCLKEY) { 999 switch (KEYCHAR(c)) { 1000 default: 1001 /* ignore them... */ 1002 continue; 1003 case BTAB: /* a backtab: ESC [ Z */ 1004 genkbd_putc(sc, 0x1b); 1005 genkbd_putc(sc, '['); 1006 genkbd_putc(sc, 'Z'); 1007 continue; 1008 } 1009 } 1010 1011 /* normal chars, normal chars with the META, function keys */ 1012 switch (KEYFLAGS(c)) { 1013 case 0: /* a normal char */ 1014 genkbd_putc(sc, KEYCHAR(c)); 1015 break; 1016 case MKEY: /* the META flag: prepend ESC */ 1017 genkbd_putc(sc, 0x1b); 1018 genkbd_putc(sc, KEYCHAR(c)); 1019 break; 1020 case FKEY | SPCLKEY: /* a function key, return string */ 1021 cp = kbd_get_fkeystr(kbd, KEYCHAR(c), &len); 1022 if (cp != NULL) { 1023 while (len-- > 0) 1024 genkbd_putc(sc, *cp++); 1025 } 1026 break; 1027 } 1028 } 1029 1030 /* wake up sleeping/polling processes */ 1031 if (sc->gkb_q_length > 0) { 1032 if (sc->gkb_flags & KB_ASLEEP) { 1033 sc->gkb_flags &= ~KB_ASLEEP; 1034 wakeup((caddr_t)sc); 1035 } 1036 KNOTE(&sc->gkb_rkq.ki_note, 0); 1037 } 1038 1039 lwkt_reltoken(&tty_token); 1040 return 0; 1041 } 1042 1043 #endif /* KBD_INSTALL_CDEV */ 1044 1045 /* 1046 * Generic low-level keyboard functions 1047 * The low-level functions in the keyboard subdriver may use these 1048 * functions. 1049 */ 1050 1051 int 1052 genkbd_commonioctl(keyboard_t *kbd, u_long cmd, caddr_t arg) 1053 { 1054 keyarg_t *keyp; 1055 fkeyarg_t *fkeyp; 1056 int i; 1057 1058 crit_enter(); 1059 lwkt_gettoken(&tty_token); 1060 switch (cmd) { 1061 1062 case KDGKBINFO: /* get keyboard information */ 1063 ((keyboard_info_t *)arg)->kb_index = kbd->kb_index; 1064 i = imin(strlen(kbd->kb_name) + 1, 1065 sizeof(((keyboard_info_t *)arg)->kb_name)); 1066 bcopy(kbd->kb_name, ((keyboard_info_t *)arg)->kb_name, i); 1067 ((keyboard_info_t *)arg)->kb_unit = kbd->kb_unit; 1068 ((keyboard_info_t *)arg)->kb_type = kbd->kb_type; 1069 ((keyboard_info_t *)arg)->kb_config = kbd->kb_config; 1070 ((keyboard_info_t *)arg)->kb_flags = kbd->kb_flags; 1071 break; 1072 1073 case KDGKBTYPE: /* get keyboard type */ 1074 *(int *)arg = kbd->kb_type; 1075 break; 1076 1077 case KDGETREPEAT: /* get keyboard repeat rate */ 1078 ((int *)arg)[0] = kbd->kb_delay1; 1079 ((int *)arg)[1] = kbd->kb_delay2; 1080 break; 1081 1082 case GIO_KEYMAP: /* get keyboard translation table */ 1083 bcopy(kbd->kb_keymap, arg, sizeof(*kbd->kb_keymap)); 1084 break; 1085 case PIO_KEYMAP: /* set keyboard translation table */ 1086 #ifndef KBD_DISABLE_KEYMAP_LOAD 1087 bzero(kbd->kb_accentmap, sizeof(*kbd->kb_accentmap)); 1088 bcopy(arg, kbd->kb_keymap, sizeof(*kbd->kb_keymap)); 1089 break; 1090 #else 1091 lwkt_reltoken(&tty_token); 1092 crit_exit(); 1093 return ENODEV; 1094 #endif 1095 1096 case GIO_KEYMAPENT: /* get keyboard translation table entry */ 1097 keyp = (keyarg_t *)arg; 1098 if (keyp->keynum >= sizeof(kbd->kb_keymap->key) 1099 /sizeof(kbd->kb_keymap->key[0])) { 1100 lwkt_reltoken(&tty_token); 1101 crit_exit(); 1102 return EINVAL; 1103 } 1104 bcopy(&kbd->kb_keymap->key[keyp->keynum], &keyp->key, 1105 sizeof(keyp->key)); 1106 break; 1107 case PIO_KEYMAPENT: /* set keyboard translation table entry */ 1108 #ifndef KBD_DISABLE_KEYMAP_LOAD 1109 keyp = (keyarg_t *)arg; 1110 if (keyp->keynum >= sizeof(kbd->kb_keymap->key) 1111 /sizeof(kbd->kb_keymap->key[0])) { 1112 lwkt_reltoken(&tty_token); 1113 crit_exit(); 1114 return EINVAL; 1115 } 1116 bcopy(&keyp->key, &kbd->kb_keymap->key[keyp->keynum], 1117 sizeof(keyp->key)); 1118 break; 1119 #else 1120 lwkt_reltoken(&tty_token); 1121 crit_exit(); 1122 return ENODEV; 1123 #endif 1124 1125 case GIO_DEADKEYMAP: /* get accent key translation table */ 1126 bcopy(kbd->kb_accentmap, arg, sizeof(*kbd->kb_accentmap)); 1127 break; 1128 case PIO_DEADKEYMAP: /* set accent key translation table */ 1129 #ifndef KBD_DISABLE_KEYMAP_LOAD 1130 bcopy(arg, kbd->kb_accentmap, sizeof(*kbd->kb_accentmap)); 1131 break; 1132 #else 1133 lwkt_reltoken(&tty_token); 1134 crit_exit(); 1135 return ENODEV; 1136 #endif 1137 1138 case GETFKEY: /* get functionkey string */ 1139 fkeyp = (fkeyarg_t *)arg; 1140 if (fkeyp->keynum >= kbd->kb_fkeytab_size) { 1141 lwkt_reltoken(&tty_token); 1142 crit_exit(); 1143 return EINVAL; 1144 } 1145 bcopy(kbd->kb_fkeytab[fkeyp->keynum].str, fkeyp->keydef, 1146 kbd->kb_fkeytab[fkeyp->keynum].len); 1147 fkeyp->flen = kbd->kb_fkeytab[fkeyp->keynum].len; 1148 break; 1149 case SETFKEY: /* set functionkey string */ 1150 #ifndef KBD_DISABLE_KEYMAP_LOAD 1151 fkeyp = (fkeyarg_t *)arg; 1152 if (fkeyp->keynum >= kbd->kb_fkeytab_size) { 1153 lwkt_reltoken(&tty_token); 1154 crit_exit(); 1155 return EINVAL; 1156 } 1157 kbd->kb_fkeytab[fkeyp->keynum].len = imin(fkeyp->flen, MAXFK); 1158 bcopy(fkeyp->keydef, kbd->kb_fkeytab[fkeyp->keynum].str, 1159 kbd->kb_fkeytab[fkeyp->keynum].len); 1160 break; 1161 #else 1162 lwkt_reltoken(&tty_token); 1163 crit_exit(); 1164 return ENODEV; 1165 #endif 1166 1167 default: 1168 lwkt_reltoken(&tty_token); 1169 crit_exit(); 1170 return ENOIOCTL; 1171 } 1172 1173 lwkt_reltoken(&tty_token); 1174 crit_exit(); 1175 return 0; 1176 } 1177 1178 /* get a pointer to the string associated with the given function key */ 1179 u_char * 1180 genkbd_get_fkeystr(keyboard_t *kbd, int fkey, size_t *len) 1181 { 1182 u_char *ch; 1183 1184 if (kbd == NULL) 1185 return NULL; 1186 1187 lwkt_gettoken(&tty_token); 1188 fkey -= F_FN; 1189 if (fkey > kbd->kb_fkeytab_size) { 1190 lwkt_reltoken(&tty_token); 1191 return NULL; 1192 } 1193 *len = kbd->kb_fkeytab[fkey].len; 1194 ch = kbd->kb_fkeytab[fkey].str; 1195 1196 lwkt_reltoken(&tty_token); 1197 return ch; 1198 } 1199 1200 /* diagnostic dump */ 1201 static char * 1202 get_kbd_type_name(int type) 1203 { 1204 static struct { 1205 int type; 1206 char *name; 1207 } name_table[] = { 1208 { KB_84, "AT 84" }, 1209 { KB_101, "AT 101/102" }, 1210 { KB_OTHER, "generic" }, 1211 }; 1212 int i; 1213 1214 for (i = 0; i < NELEM(name_table); ++i) { 1215 if (type == name_table[i].type) 1216 return name_table[i].name; 1217 } 1218 return "unknown"; 1219 } 1220 1221 void 1222 genkbd_diag(keyboard_t *kbd, int level) 1223 { 1224 if (level > 0) { 1225 kprintf("kbd%d: %s%d, %s (%d), config:0x%x, flags:0x%x", 1226 kbd->kb_index, kbd->kb_name, kbd->kb_unit, 1227 get_kbd_type_name(kbd->kb_type), kbd->kb_type, 1228 kbd->kb_config, kbd->kb_flags); 1229 if (kbd->kb_io_base > 0) 1230 kprintf(", port:0x%x-0x%x", kbd->kb_io_base, 1231 kbd->kb_io_base + kbd->kb_io_size - 1); 1232 kprintf("\n"); 1233 } 1234 } 1235 1236 #define set_lockkey_state(k, s, l) \ 1237 if (!((s) & l ## DOWN)) { \ 1238 int i; \ 1239 (s) |= l ## DOWN; \ 1240 (s) ^= l ## ED; \ 1241 i = (s) & LOCK_MASK; \ 1242 kbd_ioctl((k), KDSETLED, (caddr_t)&i); \ 1243 } 1244 1245 static u_int 1246 save_accent_key(keyboard_t *kbd, u_int key, int *accents) 1247 { 1248 int i; 1249 1250 lwkt_gettoken(&tty_token); 1251 /* make an index into the accent map */ 1252 i = key - F_ACC + 1; 1253 if ((i > kbd->kb_accentmap->n_accs) 1254 || (kbd->kb_accentmap->acc[i - 1].accchar == 0)) { 1255 /* the index is out of range or pointing to an empty entry */ 1256 *accents = 0; 1257 lwkt_reltoken(&tty_token); 1258 return ERRKEY; 1259 } 1260 1261 /* 1262 * If the same accent key has been hit twice, produce the accent char 1263 * itself. 1264 */ 1265 if (i == *accents) { 1266 key = kbd->kb_accentmap->acc[i - 1].accchar; 1267 *accents = 0; 1268 lwkt_reltoken(&tty_token); 1269 return key; 1270 } 1271 1272 /* remember the index and wait for the next key */ 1273 *accents = i; 1274 lwkt_reltoken(&tty_token); 1275 return NOKEY; 1276 } 1277 1278 static u_int 1279 make_accent_char(keyboard_t *kbd, u_int ch, int *accents) 1280 { 1281 struct acc_t *acc; 1282 int i; 1283 1284 lwkt_gettoken(&tty_token); 1285 acc = &kbd->kb_accentmap->acc[*accents - 1]; 1286 *accents = 0; 1287 1288 /* 1289 * If the accent key is followed by the space key, 1290 * produce the accent char itself. 1291 */ 1292 if (ch == ' ') { 1293 lwkt_reltoken(&tty_token); 1294 return acc->accchar; 1295 } 1296 1297 /* scan the accent map */ 1298 for (i = 0; i < NUM_ACCENTCHARS; ++i) { 1299 if (acc->map[i][0] == 0) /* end of table */ 1300 break; 1301 if (acc->map[i][0] == ch) { 1302 lwkt_reltoken(&tty_token); 1303 return acc->map[i][1]; 1304 } 1305 } 1306 lwkt_reltoken(&tty_token); 1307 /* this char cannot be accented... */ 1308 return ERRKEY; 1309 } 1310 1311 int 1312 genkbd_keyaction(keyboard_t *kbd, int keycode, int up, int *shiftstate, 1313 int *accents) 1314 { 1315 struct keyent_t *key; 1316 int state = *shiftstate; 1317 int action; 1318 int f; 1319 int i; 1320 1321 lwkt_gettoken(&tty_token); 1322 i = keycode; 1323 f = state & (AGRS | ALKED); 1324 if ((f == AGRS1) || (f == AGRS2) || (f == ALKED)) 1325 i += ALTGR_OFFSET; 1326 key = &kbd->kb_keymap->key[i]; 1327 i = ((state & SHIFTS) ? 1 : 0) 1328 | ((state & CTLS) ? 2 : 0) 1329 | ((state & ALTS) ? 4 : 0); 1330 if (((key->flgs & FLAG_LOCK_C) && (state & CLKED)) 1331 || ((key->flgs & FLAG_LOCK_N) && (state & NLKED)) ) 1332 i ^= 1; 1333 1334 if (up) { /* break: key released */ 1335 action = kbd->kb_lastact[keycode]; 1336 kbd->kb_lastact[keycode] = NOP; 1337 switch (action) { 1338 case LSHA: 1339 if (state & SHIFTAON) { 1340 set_lockkey_state(kbd, state, ALK); 1341 state &= ~ALKDOWN; 1342 } 1343 action = LSH; 1344 /* FALL THROUGH */ 1345 case LSH: 1346 state &= ~SHIFTS1; 1347 break; 1348 case RSHA: 1349 if (state & SHIFTAON) { 1350 set_lockkey_state(kbd, state, ALK); 1351 state &= ~ALKDOWN; 1352 } 1353 action = RSH; 1354 /* FALL THROUGH */ 1355 case RSH: 1356 state &= ~SHIFTS2; 1357 break; 1358 case LCTRA: 1359 if (state & SHIFTAON) { 1360 set_lockkey_state(kbd, state, ALK); 1361 state &= ~ALKDOWN; 1362 } 1363 action = LCTR; 1364 /* FALL THROUGH */ 1365 case LCTR: 1366 state &= ~CTLS1; 1367 break; 1368 case RCTRA: 1369 if (state & SHIFTAON) { 1370 set_lockkey_state(kbd, state, ALK); 1371 state &= ~ALKDOWN; 1372 } 1373 action = RCTR; 1374 /* FALL THROUGH */ 1375 case RCTR: 1376 state &= ~CTLS2; 1377 break; 1378 case LALTA: 1379 if (state & SHIFTAON) { 1380 set_lockkey_state(kbd, state, ALK); 1381 state &= ~ALKDOWN; 1382 } 1383 action = LALT; 1384 /* FALL THROUGH */ 1385 case LALT: 1386 state &= ~ALTS1; 1387 break; 1388 case RALTA: 1389 if (state & SHIFTAON) { 1390 set_lockkey_state(kbd, state, ALK); 1391 state &= ~ALKDOWN; 1392 } 1393 action = RALT; 1394 /* FALL THROUGH */ 1395 case RALT: 1396 state &= ~ALTS2; 1397 break; 1398 case ASH: 1399 state &= ~AGRS1; 1400 break; 1401 case META: 1402 state &= ~METAS1; 1403 break; 1404 case NLK: 1405 state &= ~NLKDOWN; 1406 break; 1407 case CLK: 1408 state &= ~CLKDOWN; 1409 break; 1410 case SLK: 1411 state &= ~SLKDOWN; 1412 break; 1413 case ALK: 1414 state &= ~ALKDOWN; 1415 break; 1416 case NOP: 1417 /* release events of regular keys are not reported */ 1418 *shiftstate &= ~SHIFTAON; 1419 lwkt_reltoken(&tty_token); 1420 return NOKEY; 1421 } 1422 *shiftstate = state & ~SHIFTAON; 1423 lwkt_reltoken(&tty_token); 1424 return (SPCLKEY | RELKEY | action); 1425 } else { /* make: key pressed */ 1426 action = key->map[i]; 1427 state &= ~SHIFTAON; 1428 if (key->spcl & (0x80 >> i)) { 1429 /* special keys */ 1430 if (kbd->kb_lastact[keycode] == NOP) 1431 kbd->kb_lastact[keycode] = action; 1432 if (kbd->kb_lastact[keycode] != action) 1433 action = NOP; 1434 switch (action) { 1435 /* LOCKING KEYS */ 1436 case NLK: 1437 set_lockkey_state(kbd, state, NLK); 1438 break; 1439 case CLK: 1440 set_lockkey_state(kbd, state, CLK); 1441 break; 1442 case SLK: 1443 set_lockkey_state(kbd, state, SLK); 1444 break; 1445 case ALK: 1446 set_lockkey_state(kbd, state, ALK); 1447 break; 1448 /* NON-LOCKING KEYS */ 1449 case SPSC: case RBT: case SUSP: case STBY: 1450 case DBG: case NEXT: case PREV: case PNC: 1451 case HALT: case PDWN: 1452 *accents = 0; 1453 break; 1454 case BTAB: 1455 *accents = 0; 1456 action |= BKEY; 1457 break; 1458 case LSHA: 1459 state |= SHIFTAON; 1460 action = LSH; 1461 /* FALL THROUGH */ 1462 case LSH: 1463 state |= SHIFTS1; 1464 break; 1465 case RSHA: 1466 state |= SHIFTAON; 1467 action = RSH; 1468 /* FALL THROUGH */ 1469 case RSH: 1470 state |= SHIFTS2; 1471 break; 1472 case LCTRA: 1473 state |= SHIFTAON; 1474 action = LCTR; 1475 /* FALL THROUGH */ 1476 case LCTR: 1477 state |= CTLS1; 1478 break; 1479 case RCTRA: 1480 state |= SHIFTAON; 1481 action = RCTR; 1482 /* FALL THROUGH */ 1483 case RCTR: 1484 state |= CTLS2; 1485 break; 1486 case LALTA: 1487 state |= SHIFTAON; 1488 action = LALT; 1489 /* FALL THROUGH */ 1490 case LALT: 1491 state |= ALTS1; 1492 break; 1493 case RALTA: 1494 state |= SHIFTAON; 1495 action = RALT; 1496 /* FALL THROUGH */ 1497 case RALT: 1498 state |= ALTS2; 1499 break; 1500 case ASH: 1501 state |= AGRS1; 1502 break; 1503 case META: 1504 state |= METAS1; 1505 break; 1506 case NOP: 1507 *shiftstate = state; 1508 lwkt_reltoken(&tty_token); 1509 return NOKEY; 1510 default: 1511 /* is this an accent (dead) key? */ 1512 *shiftstate = state; 1513 if (action >= F_ACC && action <= L_ACC) { 1514 action = save_accent_key(kbd, action, 1515 accents); 1516 switch (action) { 1517 case NOKEY: 1518 case ERRKEY: 1519 lwkt_reltoken(&tty_token); 1520 return action; 1521 default: 1522 if (state & METAS) { 1523 lwkt_reltoken(&tty_token); 1524 return (action | MKEY); 1525 } else { 1526 lwkt_reltoken(&tty_token); 1527 return action; 1528 } 1529 } 1530 /* NOT REACHED */ 1531 } 1532 /* other special keys */ 1533 if (*accents > 0) { 1534 *accents = 0; 1535 lwkt_reltoken(&tty_token); 1536 return ERRKEY; 1537 } 1538 if (action >= F_FN && action <= L_FN) 1539 action |= FKEY; 1540 /* XXX: return fkey string for the FKEY? */ 1541 lwkt_reltoken(&tty_token); 1542 return (SPCLKEY | action); 1543 } 1544 *shiftstate = state; 1545 lwkt_reltoken(&tty_token); 1546 return (SPCLKEY | action); 1547 } else { 1548 /* regular keys */ 1549 kbd->kb_lastact[keycode] = NOP; 1550 *shiftstate = state; 1551 if (*accents > 0) { 1552 /* make an accented char */ 1553 action = make_accent_char(kbd, action, accents); 1554 if (action == ERRKEY) { 1555 lwkt_reltoken(&tty_token); 1556 return action; 1557 } 1558 } 1559 if (state & METAS) 1560 action |= MKEY; 1561 lwkt_reltoken(&tty_token); 1562 return action; 1563 } 1564 } 1565 /* NOT REACHED */ 1566 lwkt_reltoken(&tty_token); 1567 } 1568