wsdisplay.c revision 1.102
1 /* $NetBSD: wsdisplay.c,v 1.102 2006/10/12 01:32:06 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1996, 1997 Christopher G. Demetriou. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Christopher G. Demetriou 17 * for the NetBSD Project. 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #include <sys/cdefs.h> 34 __KERNEL_RCSID(0, "$NetBSD: wsdisplay.c,v 1.102 2006/10/12 01:32:06 christos Exp $"); 35 36 #include "opt_wsdisplay_compat.h" 37 #include "opt_wsmsgattrs.h" 38 #include "opt_compat_netbsd.h" 39 #include "wskbd.h" 40 #include "wsmux.h" 41 #include "wsdisplay.h" 42 43 #include <sys/param.h> 44 #include <sys/conf.h> 45 #include <sys/device.h> 46 #include <sys/ioctl.h> 47 #include <sys/poll.h> 48 #include <sys/kernel.h> 49 #include <sys/proc.h> 50 #include <sys/malloc.h> 51 #include <sys/syslog.h> 52 #include <sys/systm.h> 53 #include <sys/tty.h> 54 #include <sys/signalvar.h> 55 #include <sys/errno.h> 56 #include <sys/fcntl.h> 57 #include <sys/vnode.h> 58 #include <sys/kauth.h> 59 60 #include <dev/wscons/wseventvar.h> 61 #include <dev/wscons/wsmuxvar.h> 62 #include <dev/wscons/wsconsio.h> 63 #include <dev/wscons/wsdisplayvar.h> 64 #include <dev/wscons/wsksymvar.h> 65 #include <dev/wscons/wsksymdef.h> 66 #include <dev/wscons/wsemulvar.h> 67 #include <dev/wscons/wscons_callbacks.h> 68 #include <dev/cons.h> 69 70 struct wsscreen_internal { 71 const struct wsdisplay_emulops *emulops; 72 void *emulcookie; 73 74 const struct wsscreen_descr *scrdata; 75 76 const struct wsemul_ops *wsemul; 77 void *wsemulcookie; 78 }; 79 80 struct wsscreen { 81 struct wsscreen_internal *scr_dconf; 82 83 struct tty *scr_tty; 84 int scr_hold_screen; /* hold tty output */ 85 86 int scr_flags; 87 #define SCR_OPEN 1 /* is it open? */ 88 #define SCR_WAITACTIVE 2 /* someone waiting on activation */ 89 #define SCR_GRAPHICS 4 /* graphics mode, no text (emulation) output */ 90 #define SCR_DUMBFB 8 /* in use as a dumb fb (iff SCR_GRAPHICS) */ 91 const struct wscons_syncops *scr_syncops; 92 void *scr_synccookie; 93 94 #ifdef WSDISPLAY_COMPAT_RAWKBD 95 int scr_rawkbd; 96 #endif 97 98 struct wsdisplay_softc *sc; 99 }; 100 101 struct wsscreen *wsscreen_attach(struct wsdisplay_softc *, int, 102 const char *, 103 const struct wsscreen_descr *, void *, 104 int, int, long); 105 void wsscreen_detach(struct wsscreen *); 106 int wsdisplay_addscreen(struct wsdisplay_softc *, int, const char *, const char *); 107 static void wsdisplay_shutdownhook(void *); 108 static void wsdisplay_addscreen_print(struct wsdisplay_softc *, int, int); 109 static void wsdisplay_closescreen(struct wsdisplay_softc *, struct wsscreen *); 110 int wsdisplay_delscreen(struct wsdisplay_softc *, int, int); 111 112 #define WSDISPLAY_MAXSCREEN 8 113 114 struct wsdisplay_softc { 115 struct device sc_dv; 116 117 const struct wsdisplay_accessops *sc_accessops; 118 void *sc_accesscookie; 119 120 const struct wsscreen_list *sc_scrdata; 121 #ifdef WSDISPLAY_SCROLLSUPPORT 122 struct wsdisplay_scroll_data sc_scroll_values; 123 #endif 124 125 struct wsscreen *sc_scr[WSDISPLAY_MAXSCREEN]; 126 int sc_focusidx; /* available only if sc_focus isn't null */ 127 struct wsscreen *sc_focus; 128 129 struct wseventvar evar; 130 131 int sc_isconsole; 132 133 int sc_flags; 134 #define SC_SWITCHPENDING 1 135 int sc_screenwanted, sc_oldscreen; /* valid with SC_SWITCHPENDING */ 136 137 #if NWSKBD > 0 138 struct wsevsrc *sc_input; 139 #ifdef WSDISPLAY_COMPAT_RAWKBD 140 int sc_rawkbd; 141 #endif 142 #endif /* NWSKBD > 0 */ 143 }; 144 145 #ifdef WSDISPLAY_SCROLLSUPPORT 146 147 struct wsdisplay_scroll_data wsdisplay_default_scroll_values = { 148 WSDISPLAY_SCROLL_DOALL, 149 25, 150 2, 151 }; 152 #endif 153 154 extern struct cfdriver wsdisplay_cd; 155 156 /* Autoconfiguration definitions. */ 157 static int wsdisplay_emul_match(struct device *, struct cfdata *, void *); 158 static void wsdisplay_emul_attach(struct device *, struct device *, void *); 159 static int wsdisplay_noemul_match(struct device *, struct cfdata *, void *); 160 static void wsdisplay_noemul_attach(struct device *, struct device *, void *); 161 162 CFATTACH_DECL(wsdisplay_emul, sizeof (struct wsdisplay_softc), 163 wsdisplay_emul_match, wsdisplay_emul_attach, NULL, NULL); 164 165 CFATTACH_DECL(wsdisplay_noemul, sizeof (struct wsdisplay_softc), 166 wsdisplay_noemul_match, wsdisplay_noemul_attach, NULL, NULL); 167 168 dev_type_open(wsdisplayopen); 169 dev_type_close(wsdisplayclose); 170 dev_type_read(wsdisplayread); 171 dev_type_write(wsdisplaywrite); 172 dev_type_ioctl(wsdisplayioctl); 173 dev_type_stop(wsdisplaystop); 174 dev_type_tty(wsdisplaytty); 175 dev_type_poll(wsdisplaypoll); 176 dev_type_mmap(wsdisplaymmap); 177 dev_type_kqfilter(wsdisplaykqfilter); 178 179 const struct cdevsw wsdisplay_cdevsw = { 180 wsdisplayopen, wsdisplayclose, wsdisplayread, wsdisplaywrite, 181 wsdisplayioctl, wsdisplaystop, wsdisplaytty, wsdisplaypoll, 182 wsdisplaymmap, wsdisplaykqfilter, D_TTY 183 }; 184 185 static void wsdisplaystart(struct tty *); 186 static int wsdisplayparam(struct tty *, struct termios *); 187 188 189 #define WSDISPLAYUNIT(dev) (minor(dev) >> 8) 190 #define WSDISPLAYSCREEN(dev) (minor(dev) & 0xff) 191 #define ISWSDISPLAYSTAT(dev) (WSDISPLAYSCREEN(dev) == 254) 192 #define ISWSDISPLAYCTL(dev) (WSDISPLAYSCREEN(dev) == 255) 193 #define WSDISPLAYMINOR(unit, screen) (((unit) << 8) | (screen)) 194 195 #define WSSCREEN_HAS_EMULATOR(scr) ((scr)->scr_dconf->wsemul != NULL) 196 #define WSSCREEN_HAS_TTY(scr) ((scr)->scr_tty != NULL) 197 198 static void wsdisplay_common_attach(struct wsdisplay_softc *sc, 199 int console, int kbdmux, const struct wsscreen_list *, 200 const struct wsdisplay_accessops *accessops, 201 void *accesscookie); 202 203 #ifdef WSDISPLAY_COMPAT_RAWKBD 204 int wsdisplay_update_rawkbd(struct wsdisplay_softc *, 205 struct wsscreen *); 206 #endif 207 208 static int wsdisplay_console_initted; 209 static int wsdisplay_console_attached; 210 static struct wsdisplay_softc *wsdisplay_console_device; 211 static struct wsscreen_internal wsdisplay_console_conf; 212 213 static int wsdisplay_getc_dummy(dev_t); 214 static void wsdisplay_pollc(dev_t, int); 215 216 static int wsdisplay_cons_pollmode; 217 static void (*wsdisplay_cons_kbd_pollc)(dev_t, int); 218 219 static struct consdev wsdisplay_cons = { 220 NULL, NULL, wsdisplay_getc_dummy, wsdisplay_cnputc, 221 wsdisplay_pollc, NULL, NULL, NULL, NODEV, CN_NORMAL 222 }; 223 224 #ifndef WSDISPLAY_DEFAULTSCREENS 225 # define WSDISPLAY_DEFAULTSCREENS 0 226 #endif 227 int wsdisplay_defaultscreens = WSDISPLAY_DEFAULTSCREENS; 228 229 int wsdisplay_switch1(void *, int, int); 230 int wsdisplay_switch2(void *, int, int); 231 int wsdisplay_switch3(void *, int, int); 232 233 int wsdisplay_clearonclose; 234 235 struct wsscreen * 236 wsscreen_attach(struct wsdisplay_softc *sc, int console, const char *emul, 237 const struct wsscreen_descr *type, void *cookie, int ccol, 238 int crow, long defattr) 239 { 240 struct wsscreen_internal *dconf; 241 struct wsscreen *scr; 242 243 scr = malloc(sizeof(struct wsscreen), M_DEVBUF, M_WAITOK); 244 if (!scr) 245 return (NULL); 246 247 if (console) { 248 dconf = &wsdisplay_console_conf; 249 /* 250 * If there's an emulation, tell it about the callback argument. 251 * The other stuff is already there. 252 */ 253 if (dconf->wsemul != NULL) 254 (*dconf->wsemul->attach)(1, 0, 0, 0, 0, scr, 0); 255 } else { /* not console */ 256 dconf = malloc(sizeof(struct wsscreen_internal), 257 M_DEVBUF, M_NOWAIT); 258 dconf->emulops = type->textops; 259 dconf->emulcookie = cookie; 260 if (dconf->emulops) { 261 dconf->wsemul = wsemul_pick(emul); 262 if (dconf->wsemul == NULL) { 263 free(dconf, M_DEVBUF); 264 free(scr, M_DEVBUF); 265 return (NULL); 266 } 267 dconf->wsemulcookie = 268 (*dconf->wsemul->attach)(0, type, cookie, 269 ccol, crow, scr, defattr); 270 } else 271 dconf->wsemul = NULL; 272 dconf->scrdata = type; 273 } 274 275 scr->scr_dconf = dconf; 276 277 scr->scr_tty = ttymalloc(); 278 tty_attach(scr->scr_tty); 279 scr->scr_hold_screen = 0; 280 if (WSSCREEN_HAS_EMULATOR(scr)) 281 scr->scr_flags = 0; 282 else 283 scr->scr_flags = SCR_GRAPHICS; 284 285 scr->scr_syncops = 0; 286 scr->sc = sc; 287 #ifdef WSDISPLAY_COMPAT_RAWKBD 288 scr->scr_rawkbd = 0; 289 #endif 290 return (scr); 291 } 292 293 void 294 wsscreen_detach(struct wsscreen *scr) 295 { 296 u_int ccol, crow; /* XXX */ 297 298 if (WSSCREEN_HAS_TTY(scr)) { 299 tty_detach(scr->scr_tty); 300 ttyfree(scr->scr_tty); 301 } 302 if (WSSCREEN_HAS_EMULATOR(scr)) 303 (*scr->scr_dconf->wsemul->detach)(scr->scr_dconf->wsemulcookie, 304 &ccol, &crow); 305 free(scr->scr_dconf, M_DEVBUF); 306 free(scr, M_DEVBUF); 307 } 308 309 const struct wsscreen_descr * 310 wsdisplay_screentype_pick(const struct wsscreen_list *scrdata, const char *name) 311 { 312 int i; 313 const struct wsscreen_descr *scr; 314 315 KASSERT(scrdata->nscreens > 0); 316 317 if (name == NULL) 318 return (scrdata->screens[0]); 319 320 for (i = 0; i < scrdata->nscreens; i++) { 321 scr = scrdata->screens[i]; 322 if (!strcmp(name, scr->name)) 323 return (scr); 324 } 325 326 return (0); 327 } 328 329 /* 330 * print info about attached screen 331 */ 332 static void 333 wsdisplay_addscreen_print(struct wsdisplay_softc *sc, int idx, int count) 334 { 335 printf("%s: screen %d", sc->sc_dv.dv_xname, idx); 336 if (count > 1) 337 printf("-%d", idx + (count-1)); 338 printf(" added (%s", sc->sc_scr[idx]->scr_dconf->scrdata->name); 339 if (WSSCREEN_HAS_EMULATOR(sc->sc_scr[idx])) { 340 printf(", %s emulation", 341 sc->sc_scr[idx]->scr_dconf->wsemul->name); 342 } 343 printf(")\n"); 344 } 345 346 int 347 wsdisplay_addscreen(struct wsdisplay_softc *sc, int idx, 348 const char *screentype, const char *emul) 349 { 350 const struct wsscreen_descr *scrdesc; 351 int error; 352 void *cookie; 353 int ccol, crow; 354 long defattr; 355 struct wsscreen *scr; 356 int s; 357 358 if (idx < 0 || idx >= WSDISPLAY_MAXSCREEN) 359 return (EINVAL); 360 if (sc->sc_scr[idx] != NULL) 361 return (EBUSY); 362 363 scrdesc = wsdisplay_screentype_pick(sc->sc_scrdata, screentype); 364 if (!scrdesc) 365 return (ENXIO); 366 error = (*sc->sc_accessops->alloc_screen)(sc->sc_accesscookie, 367 scrdesc, &cookie, &ccol, &crow, &defattr); 368 if (error) 369 return (error); 370 371 scr = wsscreen_attach(sc, 0, emul, scrdesc, 372 cookie, ccol, crow, defattr); 373 if (scr == NULL) { 374 (*sc->sc_accessops->free_screen)(sc->sc_accesscookie, 375 cookie); 376 return (ENXIO); 377 } 378 379 sc->sc_scr[idx] = scr; 380 381 /* if no screen has focus yet, activate the first we get */ 382 s = spltty(); 383 if (!sc->sc_focus) { 384 (*sc->sc_accessops->show_screen)(sc->sc_accesscookie, 385 scr->scr_dconf->emulcookie, 386 0, 0, 0); 387 sc->sc_focusidx = idx; 388 sc->sc_focus = scr; 389 } 390 splx(s); 391 return (0); 392 } 393 394 static void 395 wsdisplay_closescreen(struct wsdisplay_softc *sc, struct wsscreen *scr) 396 { 397 int maj, mn, idx; 398 399 /* hangup */ 400 if (WSSCREEN_HAS_TTY(scr)) { 401 struct tty *tp = scr->scr_tty; 402 (*tp->t_linesw->l_modem)(tp, 0); 403 } 404 405 /* locate the major number */ 406 maj = cdevsw_lookup_major(&wsdisplay_cdevsw); 407 /* locate the screen index */ 408 for (idx = 0; idx < WSDISPLAY_MAXSCREEN; idx++) 409 if (scr == sc->sc_scr[idx]) 410 break; 411 #ifdef DIAGNOSTIC 412 if (idx == WSDISPLAY_MAXSCREEN) 413 panic("wsdisplay_forceclose: bad screen"); 414 #endif 415 416 /* nuke the vnodes */ 417 mn = WSDISPLAYMINOR(device_unit(&sc->sc_dv), idx); 418 vdevgone(maj, mn, mn, VCHR); 419 } 420 421 #ifdef WSDISPLAY_SCROLLSUPPORT 422 void 423 wsdisplay_scroll(void *arg, int op) 424 { 425 struct wsdisplay_softc *sc = arg; 426 int lines; 427 428 if (op == WSDISPLAY_SCROLL_RESET) 429 lines = 0; 430 else { 431 lines = (op & WSDISPLAY_SCROLL_LOW) ? 432 sc->sc_scroll_values.slowlines : 433 sc->sc_scroll_values.fastlines; 434 if (op & WSDISPLAY_SCROLL_BACKWARD) 435 lines = -(lines); 436 } 437 438 if (sc->sc_accessops->scroll) { 439 (*sc->sc_accessops->scroll)(sc->sc_accesscookie, 440 sc->sc_focus->scr_dconf->emulcookie, lines); 441 } 442 } 443 #endif 444 445 int 446 wsdisplay_delscreen(struct wsdisplay_softc *sc, int idx, int flags) 447 { 448 struct wsscreen *scr; 449 int s; 450 void *cookie; 451 452 if (idx < 0 || idx >= WSDISPLAY_MAXSCREEN) 453 return (EINVAL); 454 if ((scr = sc->sc_scr[idx]) == NULL) 455 return (ENXIO); 456 457 if (scr->scr_dconf == &wsdisplay_console_conf || 458 scr->scr_syncops || 459 ((scr->scr_flags & SCR_OPEN) && !(flags & WSDISPLAY_DELSCR_FORCE))) 460 return(EBUSY); 461 462 wsdisplay_closescreen(sc, scr); 463 464 /* 465 * delete pointers, so neither device entries 466 * nor keyboard input can reference it anymore 467 */ 468 s = spltty(); 469 if (sc->sc_focus == scr) { 470 sc->sc_focus = 0; 471 #ifdef WSDISPLAY_COMPAT_RAWKBD 472 wsdisplay_update_rawkbd(sc, 0); 473 #endif 474 } 475 sc->sc_scr[idx] = 0; 476 splx(s); 477 478 /* 479 * Wake up processes waiting for the screen to 480 * be activated. Sleepers must check whether 481 * the screen still exists. 482 */ 483 if (scr->scr_flags & SCR_WAITACTIVE) 484 wakeup(scr); 485 486 /* save a reference to the graphics screen */ 487 cookie = scr->scr_dconf->emulcookie; 488 489 wsscreen_detach(scr); 490 491 (*sc->sc_accessops->free_screen)(sc->sc_accesscookie, 492 cookie); 493 494 printf("%s: screen %d deleted\n", sc->sc_dv.dv_xname, idx); 495 return (0); 496 } 497 498 /* 499 * Autoconfiguration functions. 500 */ 501 int 502 wsdisplay_emul_match(struct device *parent __unused, struct cfdata *match, 503 void *aux) 504 { 505 struct wsemuldisplaydev_attach_args *ap = aux; 506 507 if (match->wsemuldisplaydevcf_console != 508 WSEMULDISPLAYDEVCF_CONSOLE_UNK) { 509 /* 510 * If console-ness of device specified, either match 511 * exactly (at high priority), or fail. 512 */ 513 if (match->wsemuldisplaydevcf_console != 0 && 514 ap->console != 0) 515 return (10); 516 else 517 return (0); 518 } 519 520 /* If console-ness unspecified, it wins. */ 521 return (1); 522 } 523 524 void 525 wsdisplay_emul_attach(struct device *parent __unused, struct device *self, 526 void *aux) 527 { 528 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)self; 529 struct wsemuldisplaydev_attach_args *ap = aux; 530 531 /* Don't allow more than one console to attach */ 532 if (wsdisplay_console_attached && ap->console) 533 ap->console = 0; 534 535 wsdisplay_common_attach(sc, ap->console, 536 device_cfdata(&sc->sc_dv)->wsemuldisplaydevcf_kbdmux, ap->scrdata, 537 ap->accessops, ap->accesscookie); 538 539 if (ap->console) { 540 int maj; 541 542 /* locate the major number */ 543 maj = cdevsw_lookup_major(&wsdisplay_cdevsw); 544 545 cn_tab->cn_dev = makedev(maj, WSDISPLAYMINOR(device_unit(self), 546 0)); 547 } 548 } 549 550 /* Print function (for parent devices). */ 551 int 552 wsemuldisplaydevprint(void *aux __unused, const char *pnp) 553 { 554 #if 0 /* -Wunused */ 555 struct wsemuldisplaydev_attach_args *ap = aux; 556 #endif 557 558 if (pnp) 559 aprint_normal("wsdisplay at %s", pnp); 560 #if 0 /* don't bother; it's ugly */ 561 aprint_normal(" console %d", ap->console); 562 #endif 563 564 return (UNCONF); 565 } 566 567 int 568 wsdisplay_noemul_match(struct device *parent __unused, 569 struct cfdata *match __unused, void *aux __unused) 570 { 571 #if 0 /* -Wunused */ 572 struct wsdisplaydev_attach_args *ap = aux; 573 #endif 574 575 /* Always match. */ 576 return (1); 577 } 578 579 void 580 wsdisplay_noemul_attach(struct device *parent __unused, struct device *self, 581 void *aux) 582 { 583 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)self; 584 struct wsdisplaydev_attach_args *ap = aux; 585 586 wsdisplay_common_attach(sc, 0, 587 device_cfdata(&sc->sc_dv)->wsemuldisplaydevcf_kbdmux, NULL, 588 ap->accessops, ap->accesscookie); 589 } 590 591 /* Print function (for parent devices). */ 592 int 593 wsdisplaydevprint(void *aux __unused, const char *pnp) 594 { 595 #if 0 /* -Wunused */ 596 struct wsdisplaydev_attach_args *ap = aux; 597 #endif 598 599 if (pnp) 600 aprint_normal("wsdisplay at %s", pnp); 601 602 return (UNCONF); 603 } 604 605 static void 606 wsdisplay_common_attach(struct wsdisplay_softc *sc, int console, int kbdmux, 607 const struct wsscreen_list *scrdata, 608 const struct wsdisplay_accessops *accessops, 609 void *accesscookie) 610 { 611 static int hookset; 612 int i, start=0; 613 #if NWSKBD > 0 614 struct wsevsrc *kme; 615 #if NWSMUX > 0 616 struct wsmux_softc *mux; 617 618 if (kbdmux >= 0) 619 mux = wsmux_getmux(kbdmux); 620 else 621 mux = wsmux_create("dmux", device_unit(&sc->sc_dv)); 622 /* XXX panic()ing isn't nice, but attach cannot fail */ 623 if (mux == NULL) 624 panic("wsdisplay_common_attach: no memory"); 625 sc->sc_input = &mux->sc_base; 626 mux->sc_base.me_dispdv = &sc->sc_dv; 627 printf(" kbdmux %d", kbdmux); 628 #else 629 if (kbdmux >= 0) 630 printf(" (kbdmux ignored)"); 631 #endif 632 #endif 633 634 sc->sc_isconsole = console; 635 636 if (console) { 637 KASSERT(wsdisplay_console_initted); 638 KASSERT(wsdisplay_console_device == NULL); 639 640 sc->sc_scr[0] = wsscreen_attach(sc, 1, 0, 0, 0, 0, 0, 0); 641 wsdisplay_console_device = sc; 642 643 printf(": console (%s, %s emulation)", 644 wsdisplay_console_conf.scrdata->name, 645 wsdisplay_console_conf.wsemul->name); 646 647 #if NWSKBD > 0 648 kme = wskbd_set_console_display(&sc->sc_dv, sc->sc_input); 649 if (kme != NULL) 650 printf(", using %s", kme->me_dv.dv_xname); 651 #if NWSMUX == 0 652 sc->sc_input = kme; 653 #endif 654 #endif 655 656 sc->sc_focusidx = 0; 657 sc->sc_focus = sc->sc_scr[0]; 658 start = 1; 659 660 wsdisplay_console_attached = 1; 661 } 662 printf("\n"); 663 664 #if NWSKBD > 0 && NWSMUX > 0 665 wsmux_set_display(mux, &sc->sc_dv); 666 #endif 667 668 sc->sc_accessops = accessops; 669 sc->sc_accesscookie = accesscookie; 670 sc->sc_scrdata = scrdata; 671 672 #ifdef WSDISPLAY_SCROLLSUPPORT 673 sc->sc_scroll_values = wsdisplay_default_scroll_values; 674 #endif 675 676 /* 677 * Set up a number of virtual screens if wanted. The 678 * WSDISPLAYIO_ADDSCREEN ioctl is more flexible, so this code 679 * is for special cases like installation kernels. 680 */ 681 for (i = start; i < wsdisplay_defaultscreens; i++) { 682 if (wsdisplay_addscreen(sc, i, 0, 0)) 683 break; 684 } 685 686 if (i > start) 687 wsdisplay_addscreen_print(sc, start, i-start); 688 689 if (hookset == 0) 690 shutdownhook_establish(wsdisplay_shutdownhook, NULL); 691 hookset = 1; 692 } 693 694 void 695 wsdisplay_cnattach(const struct wsscreen_descr *type, void *cookie, 696 int ccol, int crow, long defattr) 697 { 698 const struct wsemul_ops *wsemul; 699 700 KASSERT(!wsdisplay_console_initted); 701 KASSERT(type->nrows > 0); 702 KASSERT(type->ncols > 0); 703 KASSERT(crow < type->nrows); 704 KASSERT(ccol < type->ncols); 705 706 wsdisplay_console_conf.emulops = type->textops; 707 wsdisplay_console_conf.emulcookie = cookie; 708 wsdisplay_console_conf.scrdata = type; 709 710 wsemul = wsemul_pick(0); /* default */ 711 wsdisplay_console_conf.wsemul = wsemul; 712 wsdisplay_console_conf.wsemulcookie = (*wsemul->cnattach)(type, cookie, 713 ccol, crow, 714 defattr); 715 716 cn_tab = &wsdisplay_cons; 717 wsdisplay_console_initted = 1; 718 } 719 720 /* 721 * Tty and cdevsw functions. 722 */ 723 int 724 wsdisplayopen(dev_t dev, int flag __unused, int mode __unused, struct lwp *l) 725 { 726 struct wsdisplay_softc *sc; 727 struct tty *tp; 728 int newopen, error; 729 struct wsscreen *scr; 730 731 sc = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 732 if (sc == NULL) /* make sure it was attached */ 733 return (ENXIO); 734 735 if (ISWSDISPLAYSTAT(dev)) { 736 wsevent_init(&sc->evar, l->l_proc); 737 return (0); 738 } 739 740 if (ISWSDISPLAYCTL(dev)) 741 return (0); 742 743 if (WSDISPLAYSCREEN(dev) >= WSDISPLAY_MAXSCREEN) 744 return (ENXIO); 745 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 746 return (ENXIO); 747 748 if (WSSCREEN_HAS_TTY(scr)) { 749 tp = scr->scr_tty; 750 tp->t_oproc = wsdisplaystart; 751 tp->t_param = wsdisplayparam; 752 tp->t_dev = dev; 753 newopen = (tp->t_state & TS_ISOPEN) == 0; 754 755 if (kauth_authorize_device_tty(l->l_cred, 756 KAUTH_DEVICE_TTY_OPEN, tp)) 757 return (EBUSY); 758 759 if (newopen) { 760 ttychars(tp); 761 tp->t_iflag = TTYDEF_IFLAG; 762 tp->t_oflag = TTYDEF_OFLAG; 763 tp->t_cflag = TTYDEF_CFLAG; 764 tp->t_lflag = TTYDEF_LFLAG; 765 tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED; 766 wsdisplayparam(tp, &tp->t_termios); 767 ttsetwater(tp); 768 } 769 tp->t_state |= TS_CARR_ON; 770 771 error = ((*tp->t_linesw->l_open)(dev, tp)); 772 if (error) 773 return (error); 774 775 if (newopen && WSSCREEN_HAS_EMULATOR(scr)) { 776 /* set window sizes as appropriate, and reset 777 the emulation */ 778 tp->t_winsize.ws_row = scr->scr_dconf->scrdata->nrows; 779 tp->t_winsize.ws_col = scr->scr_dconf->scrdata->ncols; 780 781 /* wsdisplay_set_emulation() */ 782 } 783 } 784 785 scr->scr_flags |= SCR_OPEN; 786 return (0); 787 } 788 789 int 790 wsdisplayclose(dev_t dev, int flag, int mode __unused, struct lwp *l) 791 { 792 struct wsdisplay_softc *sc; 793 struct tty *tp; 794 struct wsscreen *scr; 795 796 sc = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 797 798 if (ISWSDISPLAYSTAT(dev)) { 799 wsevent_fini(&sc->evar); 800 return (0); 801 } 802 803 if (ISWSDISPLAYCTL(dev)) 804 return (0); 805 806 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 807 return (0); 808 809 if (WSSCREEN_HAS_TTY(scr)) { 810 if (scr->scr_hold_screen) { 811 int s; 812 813 /* XXX RESET KEYBOARD LEDS, etc. */ 814 s = spltty(); /* avoid conflict with keyboard */ 815 wsdisplay_kbdholdscreen((struct device *)sc, 0); 816 splx(s); 817 } 818 tp = scr->scr_tty; 819 (*tp->t_linesw->l_close)(tp, flag); 820 ttyclose(tp); 821 } 822 823 if (scr->scr_syncops) 824 (*scr->scr_syncops->destroy)(scr->scr_synccookie); 825 826 if (WSSCREEN_HAS_EMULATOR(scr)) { 827 scr->scr_flags &= ~SCR_GRAPHICS; 828 (*scr->scr_dconf->wsemul->reset)(scr->scr_dconf->wsemulcookie, 829 WSEMUL_RESET); 830 if (wsdisplay_clearonclose) 831 (*scr->scr_dconf->wsemul->reset) 832 (scr->scr_dconf->wsemulcookie, 833 WSEMUL_CLEARSCREEN); 834 } 835 836 #ifdef WSDISPLAY_COMPAT_RAWKBD 837 if (scr->scr_rawkbd) { 838 int kbmode = WSKBD_TRANSLATED; 839 (void)wsdisplay_internal_ioctl(sc, scr, WSKBDIO_SETMODE, 840 (caddr_t)&kbmode, 0, l); 841 } 842 #endif 843 844 scr->scr_flags &= ~SCR_OPEN; 845 846 return (0); 847 } 848 849 int 850 wsdisplayread(dev_t dev, struct uio *uio, int flag) 851 { 852 struct wsdisplay_softc *sc; 853 struct tty *tp; 854 struct wsscreen *scr; 855 int error; 856 857 sc = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 858 859 if (ISWSDISPLAYSTAT(dev)) { 860 error = wsevent_read(&sc->evar, uio, flag); 861 return (error); 862 } 863 864 if (ISWSDISPLAYCTL(dev)) 865 return (0); 866 867 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 868 return (ENXIO); 869 870 if (!WSSCREEN_HAS_TTY(scr)) 871 return (ENODEV); 872 873 tp = scr->scr_tty; 874 return ((*tp->t_linesw->l_read)(tp, uio, flag)); 875 } 876 877 int 878 wsdisplaywrite(dev_t dev, struct uio *uio, int flag) 879 { 880 struct wsdisplay_softc *sc; 881 struct tty *tp; 882 struct wsscreen *scr; 883 884 sc = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 885 886 if (ISWSDISPLAYSTAT(dev)) { 887 return (0); 888 } 889 890 if (ISWSDISPLAYCTL(dev)) 891 return (0); 892 893 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 894 return (ENXIO); 895 896 if (!WSSCREEN_HAS_TTY(scr)) 897 return (ENODEV); 898 899 tp = scr->scr_tty; 900 return ((*tp->t_linesw->l_write)(tp, uio, flag)); 901 } 902 903 int 904 wsdisplaypoll(dev_t dev, int events, struct lwp *l) 905 { 906 struct wsdisplay_softc *sc; 907 struct tty *tp; 908 struct wsscreen *scr; 909 910 sc = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 911 912 if (ISWSDISPLAYSTAT(dev)) 913 return (wsevent_poll(&sc->evar, events, l)); 914 915 if (ISWSDISPLAYCTL(dev)) 916 return (0); 917 918 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 919 return (POLLHUP); 920 921 if (!WSSCREEN_HAS_TTY(scr)) 922 return (POLLERR); 923 924 tp = scr->scr_tty; 925 return ((*tp->t_linesw->l_poll)(tp, events, l)); 926 } 927 928 int 929 wsdisplaykqfilter(dev, kn) 930 dev_t dev; 931 struct knote *kn; 932 { 933 struct wsdisplay_softc *sc = 934 device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 935 struct wsscreen *scr; 936 937 if (ISWSDISPLAYCTL(dev)) 938 return (1); 939 940 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 941 return (1); 942 943 944 if (WSSCREEN_HAS_TTY(scr)) 945 return (ttykqfilter(dev, kn)); 946 else 947 return (1); 948 } 949 950 struct tty * 951 wsdisplaytty(dev_t dev) 952 { 953 struct wsdisplay_softc *sc; 954 struct wsscreen *scr; 955 956 sc = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 957 958 if (ISWSDISPLAYSTAT(dev)) 959 panic("wsdisplaytty() on status device"); 960 961 if (ISWSDISPLAYCTL(dev)) 962 panic("wsdisplaytty() on ctl device"); 963 964 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 965 return NULL; 966 967 return (scr->scr_tty); 968 } 969 970 int 971 wsdisplayioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct lwp *l) 972 { 973 struct wsdisplay_softc *sc; 974 struct tty *tp; 975 int error; 976 struct wsscreen *scr; 977 978 sc = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 979 980 #ifdef WSDISPLAY_COMPAT_USL 981 error = wsdisplay_usl_ioctl1(sc, cmd, data, flag, l); 982 if (error != EPASSTHROUGH) 983 return (error); 984 #endif 985 986 if (ISWSDISPLAYSTAT(dev)) 987 return (wsdisplay_stat_ioctl(sc, cmd, data, flag, l)); 988 989 if (ISWSDISPLAYCTL(dev)) 990 return (wsdisplay_cfg_ioctl(sc, cmd, data, flag, l)); 991 992 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 993 return (ENXIO); 994 995 if (WSSCREEN_HAS_TTY(scr)) { 996 tp = scr->scr_tty; 997 998 /* printf("disc\n"); */ 999 /* do the line discipline ioctls first */ 1000 error = (*tp->t_linesw->l_ioctl)(tp, cmd, data, flag, l); 1001 if (error != EPASSTHROUGH) 1002 return (error); 1003 1004 /* printf("tty\n"); */ 1005 /* then the tty ioctls */ 1006 error = ttioctl(tp, cmd, data, flag, l); 1007 if (error != EPASSTHROUGH) 1008 return (error); 1009 } 1010 1011 #ifdef WSDISPLAY_COMPAT_USL 1012 error = wsdisplay_usl_ioctl2(sc, scr, cmd, data, flag, l); 1013 if (error != EPASSTHROUGH) 1014 return (error); 1015 #endif 1016 1017 return (wsdisplay_internal_ioctl(sc, scr, cmd, data, flag, l)); 1018 } 1019 1020 int 1021 wsdisplay_param(struct device *dev, u_long cmd, struct wsdisplay_param *dp) 1022 { 1023 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)dev; 1024 return ((*sc->sc_accessops->ioctl)(sc->sc_accesscookie, 1025 sc->sc_focus->scr_dconf->emulcookie, 1026 cmd, (caddr_t)dp, 0, NULL)); 1027 } 1028 1029 int 1030 wsdisplay_internal_ioctl(struct wsdisplay_softc *sc, struct wsscreen *scr, 1031 u_long cmd, caddr_t data, int flag, struct lwp *l) 1032 { 1033 int error; 1034 char namebuf[16]; 1035 struct wsdisplay_font fd; 1036 #ifdef WSDISPLAY_SCROLLSUPPORT 1037 struct wsdisplay_scroll_data *ksdp, *usdp; 1038 #endif 1039 1040 #if NWSKBD > 0 1041 struct wsevsrc *inp; 1042 1043 #ifdef WSDISPLAY_COMPAT_RAWKBD 1044 switch (cmd) { 1045 case WSKBDIO_SETMODE: 1046 scr->scr_rawkbd = (*(int *)data == WSKBD_RAW); 1047 return (wsdisplay_update_rawkbd(sc, scr)); 1048 case WSKBDIO_GETMODE: 1049 *(int *)data = (scr->scr_rawkbd ? 1050 WSKBD_RAW : WSKBD_TRANSLATED); 1051 return (0); 1052 } 1053 #endif 1054 inp = sc->sc_input; 1055 if (inp == NULL) 1056 return (ENXIO); 1057 error = wsevsrc_display_ioctl(inp, cmd, data, flag, l); 1058 if (error != EPASSTHROUGH) 1059 return (error); 1060 #endif /* NWSKBD > 0 */ 1061 1062 switch (cmd) { 1063 case WSDISPLAYIO_GMODE: 1064 if (scr->scr_flags & SCR_GRAPHICS) { 1065 if (scr->scr_flags & SCR_DUMBFB) 1066 *(u_int *)data = WSDISPLAYIO_MODE_DUMBFB; 1067 else 1068 *(u_int *)data = WSDISPLAYIO_MODE_MAPPED; 1069 } else 1070 *(u_int *)data = WSDISPLAYIO_MODE_EMUL; 1071 return (0); 1072 1073 case WSDISPLAYIO_SMODE: 1074 #define d (*(int *)data) 1075 if (d != WSDISPLAYIO_MODE_EMUL && 1076 d != WSDISPLAYIO_MODE_MAPPED && 1077 d != WSDISPLAYIO_MODE_DUMBFB) 1078 return (EINVAL); 1079 1080 if (WSSCREEN_HAS_EMULATOR(scr)) { 1081 scr->scr_flags &= ~SCR_GRAPHICS; 1082 if (d == WSDISPLAYIO_MODE_MAPPED || 1083 d == WSDISPLAYIO_MODE_DUMBFB) 1084 scr->scr_flags |= SCR_GRAPHICS | 1085 ((d == WSDISPLAYIO_MODE_DUMBFB) ? SCR_DUMBFB : 0); 1086 } else if (d == WSDISPLAYIO_MODE_EMUL) 1087 return (EINVAL); 1088 1089 (void)(*sc->sc_accessops->ioctl)(sc->sc_accesscookie, 1090 scr->scr_dconf->emulcookie, cmd, data, flag, l); 1091 1092 return (0); 1093 #undef d 1094 1095 #ifdef WSDISPLAY_SCROLLSUPPORT 1096 #define SETSCROLLLINES(dstp, srcp, dfltp) \ 1097 do { \ 1098 (dstp)->fastlines = ((srcp)->which & \ 1099 WSDISPLAY_SCROLL_DOFASTLINES) ? \ 1100 (srcp)->fastlines : (dfltp)->fastlines; \ 1101 (dstp)->slowlines = ((srcp)->which & \ 1102 WSDISPLAY_SCROLL_DOSLOWLINES) ? \ 1103 (srcp)->slowlines : (dfltp)->slowlines; \ 1104 (dstp)->which = WSDISPLAY_SCROLL_DOALL; \ 1105 } while (0) 1106 1107 1108 case WSDISPLAYIO_DSSCROLL: 1109 usdp = (struct wsdisplay_scroll_data *)data; 1110 ksdp = &sc->sc_scroll_values; 1111 SETSCROLLLINES(ksdp, usdp, ksdp); 1112 return (0); 1113 1114 case WSDISPLAYIO_DGSCROLL: 1115 usdp = (struct wsdisplay_scroll_data *)data; 1116 ksdp = &sc->sc_scroll_values; 1117 SETSCROLLLINES(usdp, ksdp, ksdp); 1118 return (0); 1119 #else 1120 case WSDISPLAYIO_DSSCROLL: 1121 case WSDISPLAYIO_DGSCROLL: 1122 return ENODEV; 1123 #endif 1124 1125 case WSDISPLAYIO_SFONT: 1126 #define d ((struct wsdisplay_usefontdata *)data) 1127 if (!sc->sc_accessops->load_font) 1128 return (EINVAL); 1129 if (d->name) { 1130 error = copyinstr(d->name, namebuf, sizeof(namebuf), 0); 1131 if (error) 1132 return (error); 1133 fd.name = namebuf; 1134 } else 1135 fd.name = 0; 1136 fd.data = 0; 1137 error = (*sc->sc_accessops->load_font)(sc->sc_accesscookie, 1138 scr->scr_dconf->emulcookie, &fd); 1139 if (!error && WSSCREEN_HAS_EMULATOR(scr)) 1140 (*scr->scr_dconf->wsemul->reset) 1141 (scr->scr_dconf->wsemulcookie, WSEMUL_SYNCFONT); 1142 return (error); 1143 #undef d 1144 1145 #ifdef WSDISPLAY_CUSTOM_OUTPUT 1146 case WSDISPLAYIO_GMSGATTRS: 1147 #define d ((struct wsdisplay_msgattrs *)data) 1148 (*scr->scr_dconf->wsemul->getmsgattrs) 1149 (scr->scr_dconf->wsemulcookie, d); 1150 return (0); 1151 #undef d 1152 1153 case WSDISPLAYIO_SMSGATTRS: { 1154 #define d ((struct wsdisplay_msgattrs *)data) 1155 int i; 1156 for (i = 0; i < WSDISPLAY_MAXSCREEN; i++) 1157 if (sc->sc_scr[i] != NULL) 1158 (*sc->sc_scr[i]->scr_dconf->wsemul->setmsgattrs) 1159 (sc->sc_scr[i]->scr_dconf->wsemulcookie, 1160 sc->sc_scr[i]->scr_dconf->scrdata, 1161 d); 1162 } 1163 return (0); 1164 #undef d 1165 #else 1166 case WSDISPLAYIO_GMSGATTRS: 1167 case WSDISPLAYIO_SMSGATTRS: 1168 return (ENODEV); 1169 #endif 1170 } 1171 1172 /* check ioctls for display */ 1173 return ((*sc->sc_accessops->ioctl)(sc->sc_accesscookie, 1174 scr->scr_dconf->emulcookie, cmd, data, flag, l)); 1175 } 1176 1177 int 1178 wsdisplay_stat_ioctl(struct wsdisplay_softc *sc, u_long cmd, caddr_t data, 1179 int flag __unused, struct lwp *l __unused) 1180 { 1181 switch (cmd) { 1182 case WSDISPLAYIO_GETACTIVESCREEN: 1183 *(int*)data = wsdisplay_getactivescreen(sc); 1184 return (0); 1185 } 1186 1187 return (EPASSTHROUGH); 1188 } 1189 1190 int 1191 wsdisplay_cfg_ioctl(struct wsdisplay_softc *sc, u_long cmd, caddr_t data, 1192 int flag, struct lwp *l) 1193 { 1194 int error; 1195 char *type, typebuf[16], *emul, emulbuf[16]; 1196 void *tbuf; 1197 u_int fontsz; 1198 #if defined(COMPAT_14) && NWSKBD > 0 1199 struct wsmux_device wsmuxdata; 1200 #endif 1201 #if NWSKBD > 0 1202 struct wsevsrc *inp; 1203 #endif 1204 1205 switch (cmd) { 1206 case WSDISPLAYIO_ADDSCREEN: 1207 #define d ((struct wsdisplay_addscreendata *)data) 1208 if (d->screentype) { 1209 error = copyinstr(d->screentype, typebuf, 1210 sizeof(typebuf), 0); 1211 if (error) 1212 return (error); 1213 type = typebuf; 1214 } else 1215 type = 0; 1216 if (d->emul) { 1217 error = copyinstr(d->emul, emulbuf, sizeof(emulbuf),0); 1218 if (error) 1219 return (error); 1220 emul = emulbuf; 1221 } else 1222 emul = 0; 1223 1224 if ((error = wsdisplay_addscreen(sc, d->idx, type, emul)) == 0) 1225 wsdisplay_addscreen_print(sc, d->idx, 0); 1226 return (error); 1227 #undef d 1228 case WSDISPLAYIO_DELSCREEN: 1229 #define d ((struct wsdisplay_delscreendata *)data) 1230 return (wsdisplay_delscreen(sc, d->idx, d->flags)); 1231 #undef d 1232 case WSDISPLAYIO_LDFONT: 1233 #define d ((struct wsdisplay_font *)data) 1234 if (!sc->sc_accessops->load_font) 1235 return (EINVAL); 1236 if (d->name) { 1237 error = copyinstr(d->name, typebuf, sizeof(typebuf), 0); 1238 if (error) 1239 return (error); 1240 d->name = typebuf; 1241 } else 1242 d->name = "loaded"; /* ??? */ 1243 fontsz = d->fontheight * d->stride * d->numchars; 1244 if (fontsz > WSDISPLAY_MAXFONTSZ) 1245 return (EINVAL); 1246 1247 tbuf = malloc(fontsz, M_DEVBUF, M_WAITOK); 1248 error = copyin(d->data, tbuf, fontsz); 1249 if (error) { 1250 free(tbuf, M_DEVBUF); 1251 return (error); 1252 } 1253 d->data = tbuf; 1254 error = 1255 (*sc->sc_accessops->load_font)(sc->sc_accesscookie, 0, d); 1256 free(tbuf, M_DEVBUF); 1257 #undef d 1258 return (error); 1259 1260 #if NWSKBD > 0 1261 #ifdef COMPAT_14 1262 case _O_WSDISPLAYIO_SETKEYBOARD: 1263 #define d ((struct wsdisplay_kbddata *)data) 1264 inp = sc->sc_input; 1265 if (inp == NULL) 1266 return (ENXIO); 1267 switch (d->op) { 1268 case _O_WSDISPLAY_KBD_ADD: 1269 if (d->idx == -1) { 1270 d->idx = wskbd_pickfree(); 1271 if (d->idx == -1) 1272 return (ENXIO); 1273 } 1274 wsmuxdata.type = WSMUX_KBD; 1275 wsmuxdata.idx = d->idx; 1276 return (wsevsrc_ioctl(inp, WSMUX_ADD_DEVICE, 1277 &wsmuxdata, flag, l)); 1278 case _O_WSDISPLAY_KBD_DEL: 1279 wsmuxdata.type = WSMUX_KBD; 1280 wsmuxdata.idx = d->idx; 1281 return (wsevsrc_ioctl(inp, WSMUX_REMOVE_DEVICE, 1282 &wsmuxdata, flag, l)); 1283 default: 1284 return (EINVAL); 1285 } 1286 #undef d 1287 #endif 1288 1289 case WSMUXIO_ADD_DEVICE: 1290 #define d ((struct wsmux_device *)data) 1291 if (d->idx == -1 && d->type == WSMUX_KBD) 1292 d->idx = wskbd_pickfree(); 1293 #undef d 1294 /* fall into */ 1295 case WSMUXIO_INJECTEVENT: 1296 case WSMUXIO_REMOVE_DEVICE: 1297 case WSMUXIO_LIST_DEVICES: 1298 inp = sc->sc_input; 1299 if (inp == NULL) 1300 return (ENXIO); 1301 return (wsevsrc_ioctl(inp, cmd, data, flag, l)); 1302 #endif /* NWSKBD > 0 */ 1303 1304 } 1305 return (EPASSTHROUGH); 1306 } 1307 1308 int 1309 wsdisplay_stat_inject(struct device *dev, u_int type, int value) 1310 { 1311 struct wsdisplay_softc *sc = (struct wsdisplay_softc *) dev; 1312 struct wseventvar *evar; 1313 struct wscons_event event; 1314 1315 evar = &sc->evar; 1316 1317 if (evar == NULL) 1318 return (0); 1319 1320 if (evar->q == NULL) 1321 return (1); 1322 1323 event.type = type; 1324 event.value = value; 1325 if (wsevent_inject(evar, &event, 1) != 0) { 1326 log(LOG_WARNING, "wsdisplay: event queue overflow\n"); 1327 return (1); 1328 } 1329 1330 return (0); 1331 } 1332 1333 paddr_t 1334 wsdisplaymmap(dev_t dev, off_t offset, int prot) 1335 { 1336 struct wsdisplay_softc *sc = 1337 device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 1338 struct wsscreen *scr; 1339 1340 if (ISWSDISPLAYSTAT(dev)) 1341 return (-1); 1342 1343 if (ISWSDISPLAYCTL(dev)) 1344 return (-1); 1345 1346 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 1347 return (-1); 1348 1349 if (!(scr->scr_flags & SCR_GRAPHICS)) 1350 return (-1); 1351 1352 /* pass mmap to display */ 1353 return ((*sc->sc_accessops->mmap)(sc->sc_accesscookie, 1354 scr->scr_dconf->emulcookie, offset, prot)); 1355 } 1356 1357 void 1358 wsdisplaystart(struct tty *tp) 1359 { 1360 struct wsdisplay_softc *sc; 1361 struct wsscreen *scr; 1362 int s, n; 1363 u_char *tbuf; 1364 1365 s = spltty(); 1366 if (tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP)) { 1367 splx(s); 1368 return; 1369 } 1370 sc = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(tp->t_dev)); 1371 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(tp->t_dev)]) == NULL) { 1372 splx(s); 1373 return; 1374 } 1375 1376 if (scr->scr_hold_screen) { 1377 tp->t_state |= TS_TIMEOUT; 1378 splx(s); 1379 return; 1380 } 1381 tp->t_state |= TS_BUSY; 1382 splx(s); 1383 1384 /* 1385 * Drain output from ring buffer. 1386 * The output will normally be in one contiguous chunk, but when the 1387 * ring wraps, it will be in two pieces.. one at the end of the ring, 1388 * the other at the start. For performance, rather than loop here, 1389 * we output one chunk, see if there's another one, and if so, output 1390 * it too. 1391 */ 1392 1393 n = ndqb(&tp->t_outq, 0); 1394 tbuf = tp->t_outq.c_cf; 1395 1396 if (!(scr->scr_flags & SCR_GRAPHICS)) { 1397 KASSERT(WSSCREEN_HAS_EMULATOR(scr)); 1398 (*scr->scr_dconf->wsemul->output)(scr->scr_dconf->wsemulcookie, 1399 tbuf, n, 0); 1400 } 1401 ndflush(&tp->t_outq, n); 1402 1403 if ((n = ndqb(&tp->t_outq, 0)) > 0) { 1404 tbuf = tp->t_outq.c_cf; 1405 1406 if (!(scr->scr_flags & SCR_GRAPHICS)) { 1407 KASSERT(WSSCREEN_HAS_EMULATOR(scr)); 1408 (*scr->scr_dconf->wsemul->output) 1409 (scr->scr_dconf->wsemulcookie, tbuf, n, 0); 1410 } 1411 ndflush(&tp->t_outq, n); 1412 } 1413 1414 s = spltty(); 1415 tp->t_state &= ~TS_BUSY; 1416 /* Come back if there's more to do */ 1417 if (tp->t_outq.c_cc) { 1418 tp->t_state |= TS_TIMEOUT; 1419 callout_reset(&tp->t_rstrt_ch, (hz > 128) ? (hz / 128) : 1, 1420 ttrstrt, tp); 1421 } 1422 if (tp->t_outq.c_cc <= tp->t_lowat) { 1423 if (tp->t_state&TS_ASLEEP) { 1424 tp->t_state &= ~TS_ASLEEP; 1425 wakeup(&tp->t_outq); 1426 } 1427 selwakeup(&tp->t_wsel); 1428 } 1429 splx(s); 1430 } 1431 1432 void 1433 wsdisplaystop(struct tty *tp, int flag __unused) 1434 { 1435 int s; 1436 1437 s = spltty(); 1438 if (ISSET(tp->t_state, TS_BUSY)) 1439 if (!ISSET(tp->t_state, TS_TTSTOP)) 1440 SET(tp->t_state, TS_FLUSH); 1441 splx(s); 1442 } 1443 1444 /* Set line parameters. */ 1445 int 1446 wsdisplayparam(struct tty *tp, struct termios *t) 1447 { 1448 1449 tp->t_ispeed = t->c_ispeed; 1450 tp->t_ospeed = t->c_ospeed; 1451 tp->t_cflag = t->c_cflag; 1452 return 0; 1453 } 1454 1455 /* 1456 * Callbacks for the emulation code. 1457 */ 1458 void 1459 wsdisplay_emulbell(void *v) 1460 { 1461 struct wsscreen *scr = v; 1462 1463 if (scr == NULL) /* console, before real attach */ 1464 return; 1465 1466 if (scr->scr_flags & SCR_GRAPHICS) /* can this happen? */ 1467 return; 1468 1469 (void) wsdisplay_internal_ioctl(scr->sc, scr, WSKBDIO_BELL, NULL, 1470 FWRITE, NULL); 1471 } 1472 1473 void 1474 wsdisplay_emulinput(void *v, const u_char *data, u_int count) 1475 { 1476 struct wsscreen *scr = v; 1477 struct tty *tp; 1478 1479 if (v == NULL) /* console, before real attach */ 1480 return; 1481 1482 if (scr->scr_flags & SCR_GRAPHICS) /* XXX can't happen */ 1483 return; 1484 if (!WSSCREEN_HAS_TTY(scr)) 1485 return; 1486 1487 tp = scr->scr_tty; 1488 while (count-- > 0) 1489 (*tp->t_linesw->l_rint)(*data++, tp); 1490 } 1491 1492 /* 1493 * Calls from the keyboard interface. 1494 */ 1495 void 1496 wsdisplay_kbdinput(struct device *dev, keysym_t ks) 1497 { 1498 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)dev; 1499 struct wsscreen *scr; 1500 const char *dp; 1501 int count; 1502 struct tty *tp; 1503 1504 KASSERT(sc != NULL); 1505 1506 scr = sc->sc_focus; 1507 1508 if (!scr || !WSSCREEN_HAS_TTY(scr)) 1509 return; 1510 1511 tp = scr->scr_tty; 1512 1513 if (KS_GROUP(ks) == KS_GROUP_Ascii) 1514 (*tp->t_linesw->l_rint)(KS_VALUE(ks), tp); 1515 else if (WSSCREEN_HAS_EMULATOR(scr)) { 1516 count = (*scr->scr_dconf->wsemul->translate) 1517 (scr->scr_dconf->wsemulcookie, ks, &dp); 1518 while (count-- > 0) 1519 (*tp->t_linesw->l_rint)(*dp++, tp); 1520 } 1521 } 1522 1523 #if defined(WSDISPLAY_COMPAT_RAWKBD) 1524 int 1525 wsdisplay_update_rawkbd(struct wsdisplay_softc *sc, struct wsscreen *scr) 1526 { 1527 #if NWSKBD > 0 1528 int s, raw, data, error; 1529 struct wsevsrc *inp; 1530 1531 s = spltty(); 1532 1533 raw = (scr ? scr->scr_rawkbd : 0); 1534 1535 if (scr != sc->sc_focus || 1536 sc->sc_rawkbd == raw) { 1537 splx(s); 1538 return (0); 1539 } 1540 1541 data = raw ? WSKBD_RAW : WSKBD_TRANSLATED; 1542 inp = sc->sc_input; 1543 if (inp == NULL) { 1544 splx(s); 1545 return (ENXIO); 1546 } 1547 error = wsevsrc_display_ioctl(inp, WSKBDIO_SETMODE, &data, 0, 0); 1548 if (!error) 1549 sc->sc_rawkbd = raw; 1550 splx(s); 1551 return (error); 1552 #else 1553 return (0); 1554 #endif 1555 } 1556 #endif 1557 1558 int 1559 wsdisplay_switch3(void *arg, int error, int waitok) 1560 { 1561 struct wsdisplay_softc *sc = arg; 1562 int no; 1563 struct wsscreen *scr; 1564 1565 if (!(sc->sc_flags & SC_SWITCHPENDING)) { 1566 printf("wsdisplay_switch3: not switching\n"); 1567 return (EINVAL); 1568 } 1569 1570 no = sc->sc_screenwanted; 1571 if (no < 0 || no >= WSDISPLAY_MAXSCREEN) 1572 panic("wsdisplay_switch3: invalid screen %d", no); 1573 scr = sc->sc_scr[no]; 1574 if (!scr) { 1575 printf("wsdisplay_switch3: screen %d disappeared\n", no); 1576 error = ENXIO; 1577 } 1578 1579 if (error) { 1580 /* try to recover, avoid recursion */ 1581 1582 if (sc->sc_oldscreen == WSDISPLAY_NULLSCREEN) { 1583 printf("wsdisplay_switch3: giving up\n"); 1584 sc->sc_focus = 0; 1585 #ifdef WSDISPLAY_COMPAT_RAWKBD 1586 wsdisplay_update_rawkbd(sc, 0); 1587 #endif 1588 sc->sc_flags &= ~SC_SWITCHPENDING; 1589 return (error); 1590 } 1591 1592 sc->sc_screenwanted = sc->sc_oldscreen; 1593 sc->sc_oldscreen = WSDISPLAY_NULLSCREEN; 1594 return (wsdisplay_switch1(arg, 0, waitok)); 1595 } 1596 1597 sc->sc_flags &= ~SC_SWITCHPENDING; 1598 1599 if (!error && (scr->scr_flags & SCR_WAITACTIVE)) 1600 wakeup(scr); 1601 return (error); 1602 } 1603 1604 int 1605 wsdisplay_switch2(void *arg, int error, int waitok) 1606 { 1607 struct wsdisplay_softc *sc = arg; 1608 int no; 1609 struct wsscreen *scr; 1610 1611 if (!(sc->sc_flags & SC_SWITCHPENDING)) { 1612 printf("wsdisplay_switch2: not switching\n"); 1613 return (EINVAL); 1614 } 1615 1616 no = sc->sc_screenwanted; 1617 if (no < 0 || no >= WSDISPLAY_MAXSCREEN) 1618 panic("wsdisplay_switch2: invalid screen %d", no); 1619 scr = sc->sc_scr[no]; 1620 if (!scr) { 1621 printf("wsdisplay_switch2: screen %d disappeared\n", no); 1622 error = ENXIO; 1623 } 1624 1625 if (error) { 1626 /* try to recover, avoid recursion */ 1627 1628 if (sc->sc_oldscreen == WSDISPLAY_NULLSCREEN) { 1629 printf("wsdisplay_switch2: giving up\n"); 1630 sc->sc_focus = 0; 1631 sc->sc_flags &= ~SC_SWITCHPENDING; 1632 return (error); 1633 } 1634 1635 sc->sc_screenwanted = sc->sc_oldscreen; 1636 sc->sc_oldscreen = WSDISPLAY_NULLSCREEN; 1637 return (wsdisplay_switch1(arg, 0, waitok)); 1638 } 1639 1640 sc->sc_focusidx = no; 1641 sc->sc_focus = scr; 1642 1643 #ifdef WSDISPLAY_COMPAT_RAWKBD 1644 (void) wsdisplay_update_rawkbd(sc, scr); 1645 #endif 1646 /* keyboard map??? */ 1647 1648 #define wsswitch_cb3 ((void (*)(void *, int, int))wsdisplay_switch3) 1649 if (scr->scr_syncops) { 1650 error = (*scr->scr_syncops->attach)(scr->scr_synccookie, waitok, 1651 sc->sc_isconsole && wsdisplay_cons_pollmode ? 0 : wsswitch_cb3, sc); 1652 if (error == EAGAIN) { 1653 /* switch will be done asynchronously */ 1654 return (0); 1655 } 1656 } 1657 1658 return (wsdisplay_switch3(sc, error, waitok)); 1659 } 1660 1661 int 1662 wsdisplay_switch1(void *arg, int error, int waitok) 1663 { 1664 struct wsdisplay_softc *sc = arg; 1665 int no; 1666 struct wsscreen *scr; 1667 1668 if (!(sc->sc_flags & SC_SWITCHPENDING)) { 1669 printf("wsdisplay_switch1: not switching\n"); 1670 return (EINVAL); 1671 } 1672 1673 no = sc->sc_screenwanted; 1674 if (no == WSDISPLAY_NULLSCREEN) { 1675 sc->sc_flags &= ~SC_SWITCHPENDING; 1676 if (!error) { 1677 sc->sc_focus = 0; 1678 } 1679 wakeup(sc); 1680 return (error); 1681 } 1682 if (no < 0 || no >= WSDISPLAY_MAXSCREEN) 1683 panic("wsdisplay_switch1: invalid screen %d", no); 1684 scr = sc->sc_scr[no]; 1685 if (!scr) { 1686 printf("wsdisplay_switch1: screen %d disappeared\n", no); 1687 error = ENXIO; 1688 } 1689 1690 if (error) { 1691 sc->sc_flags &= ~SC_SWITCHPENDING; 1692 return (error); 1693 } 1694 1695 #define wsswitch_cb2 ((void (*)(void *, int, int))wsdisplay_switch2) 1696 error = (*sc->sc_accessops->show_screen)(sc->sc_accesscookie, 1697 scr->scr_dconf->emulcookie, 1698 waitok, 1699 sc->sc_isconsole && wsdisplay_cons_pollmode ? 0 : wsswitch_cb2, sc); 1700 if (error == EAGAIN) { 1701 /* switch will be done asynchronously */ 1702 return (0); 1703 } 1704 1705 return (wsdisplay_switch2(sc, error, waitok)); 1706 } 1707 1708 int 1709 wsdisplay_switch(struct device *dev, int no, int waitok) 1710 { 1711 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)dev; 1712 int s, res = 0; 1713 struct wsscreen *scr; 1714 1715 if (no != WSDISPLAY_NULLSCREEN) { 1716 if ((no < 0 || no >= WSDISPLAY_MAXSCREEN)) 1717 return (EINVAL); 1718 if (sc->sc_scr[no] == NULL) 1719 return (ENXIO); 1720 } 1721 1722 wsdisplay_stat_inject(dev, WSCONS_EVENT_SCREEN_SWITCH, no); 1723 1724 s = spltty(); 1725 1726 if ((sc->sc_focus && no == sc->sc_focusidx) || 1727 (sc->sc_focus == NULL && no == WSDISPLAY_NULLSCREEN)) { 1728 splx(s); 1729 return (0); 1730 } 1731 1732 if (sc->sc_flags & SC_SWITCHPENDING) { 1733 splx(s); 1734 return (EBUSY); 1735 } 1736 1737 sc->sc_flags |= SC_SWITCHPENDING; 1738 sc->sc_screenwanted = no; 1739 1740 splx(s); 1741 1742 scr = sc->sc_focus; 1743 if (!scr) { 1744 sc->sc_oldscreen = WSDISPLAY_NULLSCREEN; 1745 return (wsdisplay_switch1(sc, 0, waitok)); 1746 } else 1747 sc->sc_oldscreen = sc->sc_focusidx; 1748 1749 #define wsswitch_cb1 ((void (*)(void *, int, int))wsdisplay_switch1) 1750 if (scr->scr_syncops) { 1751 res = (*scr->scr_syncops->detach)(scr->scr_synccookie, waitok, 1752 sc->sc_isconsole && wsdisplay_cons_pollmode ? 0 : wsswitch_cb1, sc); 1753 if (res == EAGAIN) { 1754 /* switch will be done asynchronously */ 1755 return (0); 1756 } 1757 } else if (scr->scr_flags & SCR_GRAPHICS) { 1758 /* no way to save state */ 1759 res = EBUSY; 1760 } 1761 1762 return (wsdisplay_switch1(sc, res, waitok)); 1763 } 1764 1765 void 1766 wsdisplay_reset(struct device *dev, enum wsdisplay_resetops op) 1767 { 1768 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)dev; 1769 struct wsscreen *scr; 1770 1771 KASSERT(sc != NULL); 1772 scr = sc->sc_focus; 1773 1774 if (!scr) 1775 return; 1776 1777 switch (op) { 1778 case WSDISPLAY_RESETEMUL: 1779 if (!WSSCREEN_HAS_EMULATOR(scr)) 1780 break; 1781 (*scr->scr_dconf->wsemul->reset)(scr->scr_dconf->wsemulcookie, 1782 WSEMUL_RESET); 1783 break; 1784 case WSDISPLAY_RESETCLOSE: 1785 wsdisplay_closescreen(sc, scr); 1786 break; 1787 } 1788 } 1789 1790 /* 1791 * Interface for (external) VT switch / process synchronization code 1792 */ 1793 int 1794 wsscreen_attach_sync(struct wsscreen *scr, const struct wscons_syncops *ops, 1795 void *cookie) 1796 { 1797 if (scr->scr_syncops) { 1798 /* 1799 * The screen is already claimed. 1800 * Check if the owner is still alive. 1801 */ 1802 if ((*scr->scr_syncops->check)(scr->scr_synccookie)) 1803 return (EBUSY); 1804 } 1805 scr->scr_syncops = ops; 1806 scr->scr_synccookie = cookie; 1807 return (0); 1808 } 1809 1810 int 1811 wsscreen_detach_sync(struct wsscreen *scr) 1812 { 1813 if (!scr->scr_syncops) 1814 return (EINVAL); 1815 scr->scr_syncops = 0; 1816 return (0); 1817 } 1818 1819 int 1820 wsscreen_lookup_sync(struct wsscreen *scr, 1821 const struct wscons_syncops *ops, /* used as ID */ 1822 void **cookiep) 1823 { 1824 if (!scr->scr_syncops || ops != scr->scr_syncops) 1825 return (EINVAL); 1826 *cookiep = scr->scr_synccookie; 1827 return (0); 1828 } 1829 1830 /* 1831 * Interface to virtual screen stuff 1832 */ 1833 int 1834 wsdisplay_maxscreenidx(struct wsdisplay_softc *sc __unused) 1835 { 1836 return (WSDISPLAY_MAXSCREEN - 1); 1837 } 1838 1839 int 1840 wsdisplay_screenstate(struct wsdisplay_softc *sc, int idx) 1841 { 1842 if (idx < 0 || idx >= WSDISPLAY_MAXSCREEN) 1843 return (EINVAL); 1844 if (!sc->sc_scr[idx]) 1845 return (ENXIO); 1846 return ((sc->sc_scr[idx]->scr_flags & SCR_OPEN) ? EBUSY : 0); 1847 } 1848 1849 int 1850 wsdisplay_getactivescreen(struct wsdisplay_softc *sc) 1851 { 1852 return (sc->sc_focus ? sc->sc_focusidx : WSDISPLAY_NULLSCREEN); 1853 } 1854 1855 int 1856 wsscreen_switchwait(struct wsdisplay_softc *sc, int no) 1857 { 1858 struct wsscreen *scr; 1859 int s, res = 0; 1860 1861 if (no == WSDISPLAY_NULLSCREEN) { 1862 s = spltty(); 1863 while (sc->sc_focus && res == 0) { 1864 res = tsleep(sc, PCATCH, "wswait", 0); 1865 } 1866 splx(s); 1867 return (res); 1868 } 1869 1870 if (no < 0 || no >= WSDISPLAY_MAXSCREEN) 1871 return (ENXIO); 1872 scr = sc->sc_scr[no]; 1873 if (!scr) 1874 return (ENXIO); 1875 1876 s = spltty(); 1877 if (scr != sc->sc_focus) { 1878 scr->scr_flags |= SCR_WAITACTIVE; 1879 res = tsleep(scr, PCATCH, "wswait", 0); 1880 if (scr != sc->sc_scr[no]) 1881 res = ENXIO; /* disappeared in the meantime */ 1882 else 1883 scr->scr_flags &= ~SCR_WAITACTIVE; 1884 } 1885 splx(s); 1886 return (res); 1887 } 1888 1889 void 1890 wsdisplay_kbdholdscreen(struct device *dev, int hold) 1891 { 1892 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)dev; 1893 struct wsscreen *scr; 1894 1895 scr = sc->sc_focus; 1896 1897 if (hold) 1898 scr->scr_hold_screen = 1; 1899 else { 1900 scr->scr_hold_screen = 0; 1901 callout_reset(&scr->scr_tty->t_rstrt_ch, 0, 1902 ttrstrt, scr->scr_tty); /* "immediate" */ 1903 } 1904 } 1905 1906 #if NWSKBD > 0 1907 void 1908 wsdisplay_set_console_kbd(struct wsevsrc *src) 1909 { 1910 if (wsdisplay_console_device == NULL) { 1911 src->me_dispdv = NULL; 1912 return; 1913 } 1914 #if NWSMUX > 0 1915 if (wsmux_attach_sc((struct wsmux_softc *) 1916 wsdisplay_console_device->sc_input, src)) { 1917 src->me_dispdv = NULL; 1918 return; 1919 } 1920 #else 1921 wsdisplay_console_device->sc_input = src; 1922 #endif 1923 src->me_dispdv = &wsdisplay_console_device->sc_dv; 1924 } 1925 #endif /* NWSKBD > 0 */ 1926 1927 /* 1928 * Console interface. 1929 */ 1930 void 1931 wsdisplay_cnputc(dev_t dev __unused, int i) 1932 { 1933 struct wsscreen_internal *dc; 1934 u_char c = i; 1935 1936 if (!wsdisplay_console_initted) 1937 return; 1938 1939 if ((wsdisplay_console_device != NULL) && 1940 (wsdisplay_console_device->sc_scr[0] != NULL) && 1941 (wsdisplay_console_device->sc_scr[0]->scr_flags & SCR_GRAPHICS)) 1942 return; 1943 1944 dc = &wsdisplay_console_conf; 1945 (*dc->wsemul->output)(dc->wsemulcookie, &c, 1, 1); 1946 } 1947 1948 static int 1949 wsdisplay_getc_dummy(dev_t dev __unused) 1950 { 1951 /* panic? */ 1952 return (0); 1953 } 1954 1955 static void 1956 wsdisplay_pollc(dev_t dev __unused, int on) 1957 { 1958 1959 wsdisplay_cons_pollmode = on; 1960 1961 /* notify to fb drivers */ 1962 if (wsdisplay_console_device != NULL && 1963 wsdisplay_console_device->sc_accessops->pollc != NULL) 1964 (*wsdisplay_console_device->sc_accessops->pollc) 1965 (wsdisplay_console_device->sc_accesscookie, on); 1966 1967 /* notify to kbd drivers */ 1968 if (wsdisplay_cons_kbd_pollc) 1969 (*wsdisplay_cons_kbd_pollc)(NODEV, on); 1970 } 1971 1972 void 1973 wsdisplay_set_cons_kbd(int (*get)(dev_t), void (*poll)(dev_t, int), 1974 void (*bell)(dev_t, u_int, u_int, u_int)) 1975 { 1976 wsdisplay_cons.cn_getc = get; 1977 wsdisplay_cons.cn_bell = bell; 1978 wsdisplay_cons_kbd_pollc = poll; 1979 } 1980 1981 void 1982 wsdisplay_unset_cons_kbd(void) 1983 { 1984 wsdisplay_cons.cn_getc = wsdisplay_getc_dummy; 1985 wsdisplay_cons.cn_bell = NULL; 1986 wsdisplay_cons_kbd_pollc = 0; 1987 } 1988 1989 /* 1990 * Switch the console display to it's first screen. 1991 */ 1992 void 1993 wsdisplay_switchtoconsole(void) 1994 { 1995 struct wsdisplay_softc *sc; 1996 struct wsscreen *scr; 1997 1998 if (wsdisplay_console_device != NULL) { 1999 sc = wsdisplay_console_device; 2000 if ((scr = sc->sc_scr[0]) == NULL) 2001 return; 2002 (*sc->sc_accessops->show_screen)(sc->sc_accesscookie, 2003 scr->scr_dconf->emulcookie, 2004 0, NULL, NULL); 2005 } 2006 } 2007 2008 /* 2009 * Switch the console at shutdown. 2010 */ 2011 static void 2012 wsdisplay_shutdownhook(void *arg __unused) 2013 { 2014 2015 wsdisplay_switchtoconsole(); 2016 } 2017
Indexes created Thu Oct 16 14:10:15 GMT 2025