wsdisplay.c revision 1.90.2.3
1 /* $NetBSD: wsdisplay.c,v 1.90.2.3 2006/04/19 03:26:39 elad 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 1.90.2.3 2006/04/19 03:26:39 elad 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 59 #include <dev/wscons/wseventvar.h> 60 #include <dev/wscons/wsmuxvar.h> 61 #include <dev/wscons/wsconsio.h> 62 #include <dev/wscons/wsdisplayvar.h> 63 #include <dev/wscons/wsksymvar.h> 64 #include <dev/wscons/wsksymdef.h> 65 #include <dev/wscons/wsemulvar.h> 66 #include <dev/wscons/wscons_callbacks.h> 67 #include <dev/cons.h> 68 69 struct wsscreen_internal { 70 const struct wsdisplay_emulops *emulops; 71 void *emulcookie; 72 73 const struct wsscreen_descr *scrdata; 74 75 const struct wsemul_ops *wsemul; 76 void *wsemulcookie; 77 }; 78 79 struct wsscreen { 80 struct wsscreen_internal *scr_dconf; 81 82 struct tty *scr_tty; 83 int scr_hold_screen; /* hold tty output */ 84 85 int scr_flags; 86 #define SCR_OPEN 1 /* is it open? */ 87 #define SCR_WAITACTIVE 2 /* someone waiting on activation */ 88 #define SCR_GRAPHICS 4 /* graphics mode, no text (emulation) output */ 89 #define SCR_DUMBFB 8 /* in use as a dumb fb (iff SCR_GRAPHICS) */ 90 const struct wscons_syncops *scr_syncops; 91 void *scr_synccookie; 92 93 #ifdef WSDISPLAY_COMPAT_RAWKBD 94 int scr_rawkbd; 95 #endif 96 97 struct wsdisplay_softc *sc; 98 }; 99 100 struct wsscreen *wsscreen_attach(struct wsdisplay_softc *, int, 101 const char *, 102 const struct wsscreen_descr *, void *, 103 int, int, long); 104 void wsscreen_detach(struct wsscreen *); 105 int wsdisplay_addscreen(struct wsdisplay_softc *, int, const char *, const char *); 106 static void wsdisplay_shutdownhook(void *); 107 static void wsdisplay_addscreen_print(struct wsdisplay_softc *, int, int); 108 static void wsdisplay_closescreen(struct wsdisplay_softc *, struct wsscreen *); 109 int wsdisplay_delscreen(struct wsdisplay_softc *, int, int); 110 111 #define WSDISPLAY_MAXSCREEN 8 112 113 struct wsdisplay_softc { 114 struct device sc_dv; 115 116 const struct wsdisplay_accessops *sc_accessops; 117 void *sc_accesscookie; 118 119 const struct wsscreen_list *sc_scrdata; 120 #ifdef WSDISPLAY_SCROLLSUPPORT 121 struct wsdisplay_scroll_data sc_scroll_values; 122 #endif 123 124 struct wsscreen *sc_scr[WSDISPLAY_MAXSCREEN]; 125 int sc_focusidx; /* available only if sc_focus isn't null */ 126 struct wsscreen *sc_focus; 127 128 struct wseventvar evar; 129 130 int sc_isconsole; 131 132 int sc_flags; 133 #define SC_SWITCHPENDING 1 134 int sc_screenwanted, sc_oldscreen; /* valid with SC_SWITCHPENDING */ 135 136 #if NWSKBD > 0 137 struct wsevsrc *sc_input; 138 #ifdef WSDISPLAY_COMPAT_RAWKBD 139 int sc_rawkbd; 140 #endif 141 #endif /* NWSKBD > 0 */ 142 }; 143 144 #ifdef WSDISPLAY_SCROLLSUPPORT 145 146 struct wsdisplay_scroll_data wsdisplay_default_scroll_values = { 147 WSDISPLAY_SCROLL_DOALL, 148 25, 149 2, 150 }; 151 #endif 152 153 extern struct cfdriver wsdisplay_cd; 154 155 /* Autoconfiguration definitions. */ 156 static int wsdisplay_emul_match(struct device *, struct cfdata *, void *); 157 static void wsdisplay_emul_attach(struct device *, struct device *, void *); 158 static int wsdisplay_noemul_match(struct device *, struct cfdata *, void *); 159 static void wsdisplay_noemul_attach(struct device *, struct device *, void *); 160 161 CFATTACH_DECL(wsdisplay_emul, sizeof (struct wsdisplay_softc), 162 wsdisplay_emul_match, wsdisplay_emul_attach, NULL, NULL); 163 164 CFATTACH_DECL(wsdisplay_noemul, sizeof (struct wsdisplay_softc), 165 wsdisplay_noemul_match, wsdisplay_noemul_attach, NULL, NULL); 166 167 dev_type_open(wsdisplayopen); 168 dev_type_close(wsdisplayclose); 169 dev_type_read(wsdisplayread); 170 dev_type_write(wsdisplaywrite); 171 dev_type_ioctl(wsdisplayioctl); 172 dev_type_stop(wsdisplaystop); 173 dev_type_tty(wsdisplaytty); 174 dev_type_poll(wsdisplaypoll); 175 dev_type_mmap(wsdisplaymmap); 176 dev_type_kqfilter(wsdisplaykqfilter); 177 178 const struct cdevsw wsdisplay_cdevsw = { 179 wsdisplayopen, wsdisplayclose, wsdisplayread, wsdisplaywrite, 180 wsdisplayioctl, wsdisplaystop, wsdisplaytty, wsdisplaypoll, 181 wsdisplaymmap, wsdisplaykqfilter, D_TTY 182 }; 183 184 static void wsdisplaystart(struct tty *); 185 static int wsdisplayparam(struct tty *, struct termios *); 186 187 188 #define WSDISPLAYUNIT(dev) (minor(dev) >> 8) 189 #define WSDISPLAYSCREEN(dev) (minor(dev) & 0xff) 190 #define ISWSDISPLAYSTAT(dev) (WSDISPLAYSCREEN(dev) == 254) 191 #define ISWSDISPLAYCTL(dev) (WSDISPLAYSCREEN(dev) == 255) 192 #define WSDISPLAYMINOR(unit, screen) (((unit) << 8) | (screen)) 193 194 #define WSSCREEN_HAS_EMULATOR(scr) ((scr)->scr_dconf->wsemul != NULL) 195 #define WSSCREEN_HAS_TTY(scr) ((scr)->scr_tty != NULL) 196 197 static void wsdisplay_common_attach(struct wsdisplay_softc *sc, 198 int console, int kbdmux, const struct wsscreen_list *, 199 const struct wsdisplay_accessops *accessops, 200 void *accesscookie); 201 202 #ifdef WSDISPLAY_COMPAT_RAWKBD 203 int wsdisplay_update_rawkbd(struct wsdisplay_softc *, 204 struct wsscreen *); 205 #endif 206 207 static int wsdisplay_console_initted; 208 static int wsdisplay_console_attached; 209 static struct wsdisplay_softc *wsdisplay_console_device; 210 static struct wsscreen_internal wsdisplay_console_conf; 211 212 static int wsdisplay_getc_dummy(dev_t); 213 static void wsdisplay_pollc(dev_t, int); 214 215 static int wsdisplay_cons_pollmode; 216 static void (*wsdisplay_cons_kbd_pollc)(dev_t, int); 217 218 static struct consdev wsdisplay_cons = { 219 NULL, NULL, wsdisplay_getc_dummy, wsdisplay_cnputc, 220 wsdisplay_pollc, NULL, NULL, NULL, NODEV, CN_NORMAL 221 }; 222 223 #ifndef WSDISPLAY_DEFAULTSCREENS 224 # define WSDISPLAY_DEFAULTSCREENS 0 225 #endif 226 int wsdisplay_defaultscreens = WSDISPLAY_DEFAULTSCREENS; 227 228 int wsdisplay_switch1(void *, int, int); 229 int wsdisplay_switch2(void *, int, int); 230 int wsdisplay_switch3(void *, int, int); 231 232 int wsdisplay_clearonclose; 233 234 struct wsscreen * 235 wsscreen_attach(struct wsdisplay_softc *sc, int console, const char *emul, 236 const struct wsscreen_descr *type, void *cookie, int ccol, 237 int crow, long defattr) 238 { 239 struct wsscreen_internal *dconf; 240 struct wsscreen *scr; 241 242 scr = malloc(sizeof(struct wsscreen), M_DEVBUF, M_WAITOK); 243 if (!scr) 244 return (NULL); 245 246 if (console) { 247 dconf = &wsdisplay_console_conf; 248 /* 249 * If there's an emulation, tell it about the callback argument. 250 * The other stuff is already there. 251 */ 252 if (dconf->wsemul != NULL) 253 (*dconf->wsemul->attach)(1, 0, 0, 0, 0, scr, 0); 254 } else { /* not console */ 255 dconf = malloc(sizeof(struct wsscreen_internal), 256 M_DEVBUF, M_NOWAIT); 257 dconf->emulops = type->textops; 258 dconf->emulcookie = cookie; 259 if (dconf->emulops) { 260 dconf->wsemul = wsemul_pick(emul); 261 if (dconf->wsemul == NULL) { 262 free(dconf, M_DEVBUF); 263 free(scr, M_DEVBUF); 264 return (NULL); 265 } 266 dconf->wsemulcookie = 267 (*dconf->wsemul->attach)(0, type, cookie, 268 ccol, crow, scr, defattr); 269 } else 270 dconf->wsemul = NULL; 271 dconf->scrdata = type; 272 } 273 274 scr->scr_dconf = dconf; 275 276 scr->scr_tty = ttymalloc(); 277 tty_attach(scr->scr_tty); 278 scr->scr_hold_screen = 0; 279 if (WSSCREEN_HAS_EMULATOR(scr)) 280 scr->scr_flags = 0; 281 else 282 scr->scr_flags = SCR_GRAPHICS; 283 284 scr->scr_syncops = 0; 285 scr->sc = sc; 286 #ifdef WSDISPLAY_COMPAT_RAWKBD 287 scr->scr_rawkbd = 0; 288 #endif 289 return (scr); 290 } 291 292 void 293 wsscreen_detach(struct wsscreen *scr) 294 { 295 u_int ccol, crow; /* XXX */ 296 297 if (WSSCREEN_HAS_TTY(scr)) { 298 tty_detach(scr->scr_tty); 299 ttyfree(scr->scr_tty); 300 } 301 if (WSSCREEN_HAS_EMULATOR(scr)) 302 (*scr->scr_dconf->wsemul->detach)(scr->scr_dconf->wsemulcookie, 303 &ccol, &crow); 304 free(scr->scr_dconf, M_DEVBUF); 305 free(scr, M_DEVBUF); 306 } 307 308 const struct wsscreen_descr * 309 wsdisplay_screentype_pick(const struct wsscreen_list *scrdata, const char *name) 310 { 311 int i; 312 const struct wsscreen_descr *scr; 313 314 KASSERT(scrdata->nscreens > 0); 315 316 if (name == NULL) 317 return (scrdata->screens[0]); 318 319 for (i = 0; i < scrdata->nscreens; i++) { 320 scr = scrdata->screens[i]; 321 if (!strcmp(name, scr->name)) 322 return (scr); 323 } 324 325 return (0); 326 } 327 328 /* 329 * print info about attached screen 330 */ 331 static void 332 wsdisplay_addscreen_print(struct wsdisplay_softc *sc, int idx, int count) 333 { 334 printf("%s: screen %d", sc->sc_dv.dv_xname, idx); 335 if (count > 1) 336 printf("-%d", idx + (count-1)); 337 printf(" added (%s", sc->sc_scr[idx]->scr_dconf->scrdata->name); 338 if (WSSCREEN_HAS_EMULATOR(sc->sc_scr[idx])) { 339 printf(", %s emulation", 340 sc->sc_scr[idx]->scr_dconf->wsemul->name); 341 } 342 printf(")\n"); 343 } 344 345 int 346 wsdisplay_addscreen(struct wsdisplay_softc *sc, int idx, 347 const char *screentype, const char *emul) 348 { 349 const struct wsscreen_descr *scrdesc; 350 int error; 351 void *cookie; 352 int ccol, crow; 353 long defattr; 354 struct wsscreen *scr; 355 int s; 356 357 if (idx < 0 || idx >= WSDISPLAY_MAXSCREEN) 358 return (EINVAL); 359 if (sc->sc_scr[idx] != NULL) 360 return (EBUSY); 361 362 scrdesc = wsdisplay_screentype_pick(sc->sc_scrdata, screentype); 363 if (!scrdesc) 364 return (ENXIO); 365 error = (*sc->sc_accessops->alloc_screen)(sc->sc_accesscookie, 366 scrdesc, &cookie, &ccol, &crow, &defattr); 367 if (error) 368 return (error); 369 370 scr = wsscreen_attach(sc, 0, emul, scrdesc, 371 cookie, ccol, crow, defattr); 372 if (scr == NULL) { 373 (*sc->sc_accessops->free_screen)(sc->sc_accesscookie, 374 cookie); 375 return (ENXIO); 376 } 377 378 sc->sc_scr[idx] = scr; 379 380 /* if no screen has focus yet, activate the first we get */ 381 s = spltty(); 382 if (!sc->sc_focus) { 383 (*sc->sc_accessops->show_screen)(sc->sc_accesscookie, 384 scr->scr_dconf->emulcookie, 385 0, 0, 0); 386 sc->sc_focusidx = idx; 387 sc->sc_focus = scr; 388 } 389 splx(s); 390 return (0); 391 } 392 393 static void 394 wsdisplay_closescreen(struct wsdisplay_softc *sc, struct wsscreen *scr) 395 { 396 int maj, mn, idx; 397 398 /* hangup */ 399 if (WSSCREEN_HAS_TTY(scr)) { 400 struct tty *tp = scr->scr_tty; 401 (*tp->t_linesw->l_modem)(tp, 0); 402 } 403 404 /* locate the major number */ 405 maj = cdevsw_lookup_major(&wsdisplay_cdevsw); 406 /* locate the screen index */ 407 for (idx = 0; idx < WSDISPLAY_MAXSCREEN; idx++) 408 if (scr == sc->sc_scr[idx]) 409 break; 410 #ifdef DIAGNOSTIC 411 if (idx == WSDISPLAY_MAXSCREEN) 412 panic("wsdisplay_forceclose: bad screen"); 413 #endif 414 415 /* nuke the vnodes */ 416 mn = WSDISPLAYMINOR(device_unit(&sc->sc_dv), idx); 417 vdevgone(maj, mn, mn, VCHR); 418 } 419 420 #ifdef WSDISPLAY_SCROLLSUPPORT 421 void 422 wsdisplay_scroll(void *arg, int op) 423 { 424 struct wsdisplay_softc *sc = arg; 425 int lines; 426 427 if (op == WSDISPLAY_SCROLL_RESET) 428 lines = 0; 429 else { 430 lines = (op & WSDISPLAY_SCROLL_LOW) ? 431 sc->sc_scroll_values.slowlines : 432 sc->sc_scroll_values.fastlines; 433 if (op & WSDISPLAY_SCROLL_BACKWARD) 434 lines = -(lines); 435 } 436 437 if (sc->sc_accessops->scroll) { 438 (*sc->sc_accessops->scroll)(sc->sc_accesscookie, 439 sc->sc_focus->scr_dconf->emulcookie, lines); 440 } 441 } 442 #endif 443 444 int 445 wsdisplay_delscreen(struct wsdisplay_softc *sc, int idx, int flags) 446 { 447 struct wsscreen *scr; 448 int s; 449 void *cookie; 450 451 if (idx < 0 || idx >= WSDISPLAY_MAXSCREEN) 452 return (EINVAL); 453 if ((scr = sc->sc_scr[idx]) == NULL) 454 return (ENXIO); 455 456 if (scr->scr_dconf == &wsdisplay_console_conf || 457 scr->scr_syncops || 458 ((scr->scr_flags & SCR_OPEN) && !(flags & WSDISPLAY_DELSCR_FORCE))) 459 return(EBUSY); 460 461 wsdisplay_closescreen(sc, scr); 462 463 /* 464 * delete pointers, so neither device entries 465 * nor keyboard input can reference it anymore 466 */ 467 s = spltty(); 468 if (sc->sc_focus == scr) { 469 sc->sc_focus = 0; 470 #ifdef WSDISPLAY_COMPAT_RAWKBD 471 wsdisplay_update_rawkbd(sc, 0); 472 #endif 473 } 474 sc->sc_scr[idx] = 0; 475 splx(s); 476 477 /* 478 * Wake up processes waiting for the screen to 479 * be activated. Sleepers must check whether 480 * the screen still exists. 481 */ 482 if (scr->scr_flags & SCR_WAITACTIVE) 483 wakeup(scr); 484 485 /* save a reference to the graphics screen */ 486 cookie = scr->scr_dconf->emulcookie; 487 488 wsscreen_detach(scr); 489 490 (*sc->sc_accessops->free_screen)(sc->sc_accesscookie, 491 cookie); 492 493 printf("%s: screen %d deleted\n", sc->sc_dv.dv_xname, idx); 494 return (0); 495 } 496 497 /* 498 * Autoconfiguration functions. 499 */ 500 int 501 wsdisplay_emul_match(struct device *parent, struct cfdata *match, void *aux) 502 { 503 struct wsemuldisplaydev_attach_args *ap = aux; 504 505 if (match->wsemuldisplaydevcf_console != 506 WSEMULDISPLAYDEVCF_CONSOLE_UNK) { 507 /* 508 * If console-ness of device specified, either match 509 * exactly (at high priority), or fail. 510 */ 511 if (match->wsemuldisplaydevcf_console != 0 && 512 ap->console != 0) 513 return (10); 514 else 515 return (0); 516 } 517 518 /* If console-ness unspecified, it wins. */ 519 return (1); 520 } 521 522 void 523 wsdisplay_emul_attach(struct device *parent, struct device *self, void *aux) 524 { 525 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)self; 526 struct wsemuldisplaydev_attach_args *ap = aux; 527 528 /* Don't allow more than one console to attach */ 529 if (wsdisplay_console_attached && ap->console) 530 ap->console = 0; 531 532 wsdisplay_common_attach(sc, ap->console, 533 device_cfdata(&sc->sc_dv)->wsemuldisplaydevcf_kbdmux, ap->scrdata, 534 ap->accessops, ap->accesscookie); 535 536 if (ap->console) { 537 int maj; 538 539 /* locate the major number */ 540 maj = cdevsw_lookup_major(&wsdisplay_cdevsw); 541 542 cn_tab->cn_dev = makedev(maj, WSDISPLAYMINOR(device_unit(self), 543 0)); 544 } 545 } 546 547 /* Print function (for parent devices). */ 548 int 549 wsemuldisplaydevprint(void *aux, const char *pnp) 550 { 551 #if 0 /* -Wunused */ 552 struct wsemuldisplaydev_attach_args *ap = aux; 553 #endif 554 555 if (pnp) 556 aprint_normal("wsdisplay at %s", pnp); 557 #if 0 /* don't bother; it's ugly */ 558 aprint_normal(" console %d", ap->console); 559 #endif 560 561 return (UNCONF); 562 } 563 564 int 565 wsdisplay_noemul_match(struct device *parent, struct cfdata *match, void *aux) 566 { 567 #if 0 /* -Wunused */ 568 struct wsdisplaydev_attach_args *ap = aux; 569 #endif 570 571 /* Always match. */ 572 return (1); 573 } 574 575 void 576 wsdisplay_noemul_attach(struct device *parent, struct device *self, void *aux) 577 { 578 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)self; 579 struct wsdisplaydev_attach_args *ap = aux; 580 581 wsdisplay_common_attach(sc, 0, 582 device_cfdata(&sc->sc_dv)->wsemuldisplaydevcf_kbdmux, NULL, 583 ap->accessops, ap->accesscookie); 584 } 585 586 /* Print function (for parent devices). */ 587 int 588 wsdisplaydevprint(void *aux, const char *pnp) 589 { 590 #if 0 /* -Wunused */ 591 struct wsdisplaydev_attach_args *ap = aux; 592 #endif 593 594 if (pnp) 595 aprint_normal("wsdisplay at %s", pnp); 596 597 return (UNCONF); 598 } 599 600 static void 601 wsdisplay_common_attach(struct wsdisplay_softc *sc, int console, int kbdmux, 602 const struct wsscreen_list *scrdata, 603 const struct wsdisplay_accessops *accessops, 604 void *accesscookie) 605 { 606 static int hookset; 607 int i, start=0; 608 #if NWSKBD > 0 609 struct wsevsrc *kme; 610 #if NWSMUX > 0 611 struct wsmux_softc *mux; 612 613 if (kbdmux >= 0) 614 mux = wsmux_getmux(kbdmux); 615 else 616 mux = wsmux_create("dmux", device_unit(&sc->sc_dv)); 617 /* XXX panic()ing isn't nice, but attach cannot fail */ 618 if (mux == NULL) 619 panic("wsdisplay_common_attach: no memory"); 620 sc->sc_input = &mux->sc_base; 621 mux->sc_base.me_dispdv = &sc->sc_dv; 622 printf(" kbdmux %d", kbdmux); 623 #else 624 if (kbdmux >= 0) 625 printf(" (kbdmux ignored)"); 626 #endif 627 #endif 628 629 sc->sc_isconsole = console; 630 631 if (console) { 632 KASSERT(wsdisplay_console_initted); 633 KASSERT(wsdisplay_console_device == NULL); 634 635 sc->sc_scr[0] = wsscreen_attach(sc, 1, 0, 0, 0, 0, 0, 0); 636 wsdisplay_console_device = sc; 637 638 printf(": console (%s, %s emulation)", 639 wsdisplay_console_conf.scrdata->name, 640 wsdisplay_console_conf.wsemul->name); 641 642 #if NWSKBD > 0 643 kme = wskbd_set_console_display(&sc->sc_dv, sc->sc_input); 644 if (kme != NULL) 645 printf(", using %s", kme->me_dv.dv_xname); 646 #if NWSMUX == 0 647 sc->sc_input = kme; 648 #endif 649 #endif 650 651 sc->sc_focusidx = 0; 652 sc->sc_focus = sc->sc_scr[0]; 653 start = 1; 654 655 wsdisplay_console_attached = 1; 656 } 657 printf("\n"); 658 659 #if NWSKBD > 0 && NWSMUX > 0 660 wsmux_set_display(mux, &sc->sc_dv); 661 #endif 662 663 sc->sc_accessops = accessops; 664 sc->sc_accesscookie = accesscookie; 665 sc->sc_scrdata = scrdata; 666 667 #ifdef WSDISPLAY_SCROLLSUPPORT 668 sc->sc_scroll_values = wsdisplay_default_scroll_values; 669 #endif 670 671 /* 672 * Set up a number of virtual screens if wanted. The 673 * WSDISPLAYIO_ADDSCREEN ioctl is more flexible, so this code 674 * is for special cases like installation kernels. 675 */ 676 for (i = start; i < wsdisplay_defaultscreens; i++) { 677 if (wsdisplay_addscreen(sc, i, 0, 0)) 678 break; 679 } 680 681 if (i > start) 682 wsdisplay_addscreen_print(sc, start, i-start); 683 684 if (hookset == 0) 685 shutdownhook_establish(wsdisplay_shutdownhook, NULL); 686 hookset = 1; 687 } 688 689 void 690 wsdisplay_cnattach(const struct wsscreen_descr *type, void *cookie, 691 int ccol, int crow, long defattr) 692 { 693 const struct wsemul_ops *wsemul; 694 695 KASSERT(!wsdisplay_console_initted); 696 KASSERT(type->nrows > 0); 697 KASSERT(type->ncols > 0); 698 KASSERT(crow < type->nrows); 699 KASSERT(ccol < type->ncols); 700 701 wsdisplay_console_conf.emulops = type->textops; 702 wsdisplay_console_conf.emulcookie = cookie; 703 wsdisplay_console_conf.scrdata = type; 704 705 wsemul = wsemul_pick(0); /* default */ 706 wsdisplay_console_conf.wsemul = wsemul; 707 wsdisplay_console_conf.wsemulcookie = (*wsemul->cnattach)(type, cookie, 708 ccol, crow, 709 defattr); 710 711 cn_tab = &wsdisplay_cons; 712 wsdisplay_console_initted = 1; 713 } 714 715 /* 716 * Tty and cdevsw functions. 717 */ 718 int 719 wsdisplayopen(dev_t dev, int flag, int mode, struct lwp *l) 720 { 721 struct wsdisplay_softc *sc; 722 struct tty *tp; 723 int newopen, error; 724 struct wsscreen *scr; 725 726 sc = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 727 if (sc == NULL) /* make sure it was attached */ 728 return (ENXIO); 729 730 if (ISWSDISPLAYSTAT(dev)) { 731 wsevent_init(&sc->evar, l->l_proc); 732 return (0); 733 } 734 735 if (ISWSDISPLAYCTL(dev)) 736 return (0); 737 738 if (WSDISPLAYSCREEN(dev) >= WSDISPLAY_MAXSCREEN) 739 return (ENXIO); 740 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 741 return (ENXIO); 742 743 if (WSSCREEN_HAS_TTY(scr)) { 744 tp = scr->scr_tty; 745 tp->t_oproc = wsdisplaystart; 746 tp->t_param = wsdisplayparam; 747 tp->t_dev = dev; 748 newopen = (tp->t_state & TS_ISOPEN) == 0; 749 if (newopen) { 750 ttychars(tp); 751 tp->t_iflag = TTYDEF_IFLAG; 752 tp->t_oflag = TTYDEF_OFLAG; 753 tp->t_cflag = TTYDEF_CFLAG; 754 tp->t_lflag = TTYDEF_LFLAG; 755 tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED; 756 wsdisplayparam(tp, &tp->t_termios); 757 ttsetwater(tp); 758 } else if ((tp->t_state & TS_XCLUDE) != 0 && 759 kauth_authorize_generic(l->l_proc->p_cred, KAUTH_GENERIC_ISSUSER, 760 &l->l_proc->p_acflag) != 0) 761 return EBUSY; 762 tp->t_state |= TS_CARR_ON; 763 764 error = ((*tp->t_linesw->l_open)(dev, tp)); 765 if (error) 766 return (error); 767 768 if (newopen && WSSCREEN_HAS_EMULATOR(scr)) { 769 /* set window sizes as appropriate, and reset 770 the emulation */ 771 tp->t_winsize.ws_row = scr->scr_dconf->scrdata->nrows; 772 tp->t_winsize.ws_col = scr->scr_dconf->scrdata->ncols; 773 774 /* wsdisplay_set_emulation() */ 775 } 776 } 777 778 scr->scr_flags |= SCR_OPEN; 779 return (0); 780 } 781 782 int 783 wsdisplayclose(dev_t dev, int flag, int mode, struct lwp *l) 784 { 785 struct wsdisplay_softc *sc; 786 struct tty *tp; 787 struct wsscreen *scr; 788 789 sc = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 790 791 if (ISWSDISPLAYSTAT(dev)) { 792 wsevent_fini(&sc->evar); 793 return (0); 794 } 795 796 if (ISWSDISPLAYCTL(dev)) 797 return (0); 798 799 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 800 return (0); 801 802 if (WSSCREEN_HAS_TTY(scr)) { 803 if (scr->scr_hold_screen) { 804 int s; 805 806 /* XXX RESET KEYBOARD LEDS, etc. */ 807 s = spltty(); /* avoid conflict with keyboard */ 808 wsdisplay_kbdholdscreen((struct device *)sc, 0); 809 splx(s); 810 } 811 tp = scr->scr_tty; 812 (*tp->t_linesw->l_close)(tp, flag); 813 ttyclose(tp); 814 } 815 816 if (scr->scr_syncops) 817 (*scr->scr_syncops->destroy)(scr->scr_synccookie); 818 819 if (WSSCREEN_HAS_EMULATOR(scr)) { 820 scr->scr_flags &= ~SCR_GRAPHICS; 821 (*scr->scr_dconf->wsemul->reset)(scr->scr_dconf->wsemulcookie, 822 WSEMUL_RESET); 823 if (wsdisplay_clearonclose) 824 (*scr->scr_dconf->wsemul->reset) 825 (scr->scr_dconf->wsemulcookie, 826 WSEMUL_CLEARSCREEN); 827 } 828 829 #ifdef WSDISPLAY_COMPAT_RAWKBD 830 if (scr->scr_rawkbd) { 831 int kbmode = WSKBD_TRANSLATED; 832 (void)wsdisplay_internal_ioctl(sc, scr, WSKBDIO_SETMODE, 833 (caddr_t)&kbmode, 0, l); 834 } 835 #endif 836 837 scr->scr_flags &= ~SCR_OPEN; 838 839 return (0); 840 } 841 842 int 843 wsdisplayread(dev_t dev, struct uio *uio, int flag) 844 { 845 struct wsdisplay_softc *sc; 846 struct tty *tp; 847 struct wsscreen *scr; 848 int error; 849 850 sc = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 851 852 if (ISWSDISPLAYSTAT(dev)) { 853 error = wsevent_read(&sc->evar, uio, flag); 854 return (error); 855 } 856 857 if (ISWSDISPLAYCTL(dev)) 858 return (0); 859 860 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 861 return (ENXIO); 862 863 if (!WSSCREEN_HAS_TTY(scr)) 864 return (ENODEV); 865 866 tp = scr->scr_tty; 867 return ((*tp->t_linesw->l_read)(tp, uio, flag)); 868 } 869 870 int 871 wsdisplaywrite(dev_t dev, struct uio *uio, int flag) 872 { 873 struct wsdisplay_softc *sc; 874 struct tty *tp; 875 struct wsscreen *scr; 876 877 sc = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 878 879 if (ISWSDISPLAYSTAT(dev)) { 880 return (0); 881 } 882 883 if (ISWSDISPLAYCTL(dev)) 884 return (0); 885 886 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 887 return (ENXIO); 888 889 if (!WSSCREEN_HAS_TTY(scr)) 890 return (ENODEV); 891 892 tp = scr->scr_tty; 893 return ((*tp->t_linesw->l_write)(tp, uio, flag)); 894 } 895 896 int 897 wsdisplaypoll(dev_t dev, int events, struct lwp *l) 898 { 899 struct wsdisplay_softc *sc; 900 struct tty *tp; 901 struct wsscreen *scr; 902 903 sc = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 904 905 if (ISWSDISPLAYSTAT(dev)) 906 return (wsevent_poll(&sc->evar, events, l)); 907 908 if (ISWSDISPLAYCTL(dev)) 909 return (0); 910 911 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 912 return (POLLHUP); 913 914 if (!WSSCREEN_HAS_TTY(scr)) 915 return (POLLERR); 916 917 tp = scr->scr_tty; 918 return ((*tp->t_linesw->l_poll)(tp, events, l)); 919 } 920 921 int 922 wsdisplaykqfilter(dev, kn) 923 dev_t dev; 924 struct knote *kn; 925 { 926 struct wsdisplay_softc *sc = 927 device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 928 struct wsscreen *scr; 929 930 if (ISWSDISPLAYCTL(dev)) 931 return (1); 932 933 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 934 return (1); 935 936 937 if (WSSCREEN_HAS_TTY(scr)) 938 return (ttykqfilter(dev, kn)); 939 else 940 return (1); 941 } 942 943 struct tty * 944 wsdisplaytty(dev_t dev) 945 { 946 struct wsdisplay_softc *sc; 947 struct wsscreen *scr; 948 949 sc = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 950 951 if (ISWSDISPLAYSTAT(dev)) 952 panic("wsdisplaytty() on status device"); 953 954 if (ISWSDISPLAYCTL(dev)) 955 panic("wsdisplaytty() on ctl device"); 956 957 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 958 return NULL; 959 960 return (scr->scr_tty); 961 } 962 963 int 964 wsdisplayioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct lwp *l) 965 { 966 struct wsdisplay_softc *sc; 967 struct tty *tp; 968 int error; 969 struct wsscreen *scr; 970 971 sc = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 972 973 #ifdef WSDISPLAY_COMPAT_USL 974 error = wsdisplay_usl_ioctl1(sc, cmd, data, flag, l); 975 if (error != EPASSTHROUGH) 976 return (error); 977 #endif 978 979 if (ISWSDISPLAYSTAT(dev)) 980 return (wsdisplay_stat_ioctl(sc, cmd, data, flag, l)); 981 982 if (ISWSDISPLAYCTL(dev)) 983 return (wsdisplay_cfg_ioctl(sc, cmd, data, flag, l)); 984 985 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 986 return (ENXIO); 987 988 if (WSSCREEN_HAS_TTY(scr)) { 989 tp = scr->scr_tty; 990 991 /* printf("disc\n"); */ 992 /* do the line discipline ioctls first */ 993 error = (*tp->t_linesw->l_ioctl)(tp, cmd, data, flag, l); 994 if (error != EPASSTHROUGH) 995 return (error); 996 997 /* printf("tty\n"); */ 998 /* then the tty ioctls */ 999 error = ttioctl(tp, cmd, data, flag, l); 1000 if (error != EPASSTHROUGH) 1001 return (error); 1002 } 1003 1004 #ifdef WSDISPLAY_COMPAT_USL 1005 error = wsdisplay_usl_ioctl2(sc, scr, cmd, data, flag, l); 1006 if (error != EPASSTHROUGH) 1007 return (error); 1008 #endif 1009 1010 return (wsdisplay_internal_ioctl(sc, scr, cmd, data, flag, l)); 1011 } 1012 1013 int 1014 wsdisplay_param(struct device *dev, u_long cmd, struct wsdisplay_param *dp) 1015 { 1016 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)dev; 1017 return ((*sc->sc_accessops->ioctl)(sc->sc_accesscookie, 1018 sc->sc_focus->scr_dconf->emulcookie, 1019 cmd, (caddr_t)dp, 0, NULL)); 1020 } 1021 1022 int 1023 wsdisplay_internal_ioctl(struct wsdisplay_softc *sc, struct wsscreen *scr, 1024 u_long cmd, caddr_t data, int flag, struct lwp *l) 1025 { 1026 int error; 1027 char namebuf[16]; 1028 struct wsdisplay_font fd; 1029 #ifdef WSDISPLAY_SCROLLSUPPORT 1030 struct wsdisplay_scroll_data *ksdp, *usdp; 1031 #endif 1032 1033 #if NWSKBD > 0 1034 struct wsevsrc *inp; 1035 1036 #ifdef WSDISPLAY_COMPAT_RAWKBD 1037 switch (cmd) { 1038 case WSKBDIO_SETMODE: 1039 scr->scr_rawkbd = (*(int *)data == WSKBD_RAW); 1040 return (wsdisplay_update_rawkbd(sc, scr)); 1041 case WSKBDIO_GETMODE: 1042 *(int *)data = (scr->scr_rawkbd ? 1043 WSKBD_RAW : WSKBD_TRANSLATED); 1044 return (0); 1045 } 1046 #endif 1047 inp = sc->sc_input; 1048 if (inp == NULL) 1049 return (ENXIO); 1050 error = wsevsrc_display_ioctl(inp, cmd, data, flag, l); 1051 if (error != EPASSTHROUGH) 1052 return (error); 1053 #endif /* NWSKBD > 0 */ 1054 1055 switch (cmd) { 1056 case WSDISPLAYIO_GMODE: 1057 if (scr->scr_flags & SCR_GRAPHICS) { 1058 if (scr->scr_flags & SCR_DUMBFB) 1059 *(u_int *)data = WSDISPLAYIO_MODE_DUMBFB; 1060 else 1061 *(u_int *)data = WSDISPLAYIO_MODE_MAPPED; 1062 } else 1063 *(u_int *)data = WSDISPLAYIO_MODE_EMUL; 1064 return (0); 1065 1066 case WSDISPLAYIO_SMODE: 1067 #define d (*(int *)data) 1068 if (d != WSDISPLAYIO_MODE_EMUL && 1069 d != WSDISPLAYIO_MODE_MAPPED && 1070 d != WSDISPLAYIO_MODE_DUMBFB) 1071 return (EINVAL); 1072 1073 if (WSSCREEN_HAS_EMULATOR(scr)) { 1074 scr->scr_flags &= ~SCR_GRAPHICS; 1075 if (d == WSDISPLAYIO_MODE_MAPPED || 1076 d == WSDISPLAYIO_MODE_DUMBFB) 1077 scr->scr_flags |= SCR_GRAPHICS | 1078 ((d == WSDISPLAYIO_MODE_DUMBFB) ? SCR_DUMBFB : 0); 1079 } else if (d == WSDISPLAYIO_MODE_EMUL) 1080 return (EINVAL); 1081 1082 (void)(*sc->sc_accessops->ioctl)(sc->sc_accesscookie, 1083 scr->scr_dconf->emulcookie, cmd, data, flag, l); 1084 1085 return (0); 1086 #undef d 1087 1088 #ifdef WSDISPLAY_SCROLLSUPPORT 1089 #define SETSCROLLLINES(dstp, srcp, dfltp) \ 1090 do { \ 1091 (dstp)->fastlines = ((srcp)->which & \ 1092 WSDISPLAY_SCROLL_DOFASTLINES) ? \ 1093 (srcp)->fastlines : (dfltp)->fastlines; \ 1094 (dstp)->slowlines = ((srcp)->which & \ 1095 WSDISPLAY_SCROLL_DOSLOWLINES) ? \ 1096 (srcp)->slowlines : (dfltp)->slowlines; \ 1097 (dstp)->which = WSDISPLAY_SCROLL_DOALL; \ 1098 } while (0) 1099 1100 1101 case WSDISPLAYIO_DSSCROLL: 1102 usdp = (struct wsdisplay_scroll_data *)data; 1103 ksdp = &sc->sc_scroll_values; 1104 SETSCROLLLINES(ksdp, usdp, ksdp); 1105 return (0); 1106 1107 case WSDISPLAYIO_DGSCROLL: 1108 usdp = (struct wsdisplay_scroll_data *)data; 1109 ksdp = &sc->sc_scroll_values; 1110 SETSCROLLLINES(usdp, ksdp, ksdp); 1111 return (0); 1112 #else 1113 case WSDISPLAYIO_DSSCROLL: 1114 case WSDISPLAYIO_DGSCROLL: 1115 return ENODEV; 1116 #endif 1117 1118 case WSDISPLAYIO_SFONT: 1119 #define d ((struct wsdisplay_usefontdata *)data) 1120 if (!sc->sc_accessops->load_font) 1121 return (EINVAL); 1122 if (d->name) { 1123 error = copyinstr(d->name, namebuf, sizeof(namebuf), 0); 1124 if (error) 1125 return (error); 1126 fd.name = namebuf; 1127 } else 1128 fd.name = 0; 1129 fd.data = 0; 1130 error = (*sc->sc_accessops->load_font)(sc->sc_accesscookie, 1131 scr->scr_dconf->emulcookie, &fd); 1132 if (!error && WSSCREEN_HAS_EMULATOR(scr)) 1133 (*scr->scr_dconf->wsemul->reset) 1134 (scr->scr_dconf->wsemulcookie, WSEMUL_SYNCFONT); 1135 return (error); 1136 #undef d 1137 1138 #ifdef WSDISPLAY_CUSTOM_OUTPUT 1139 case WSDISPLAYIO_GMSGATTRS: 1140 #define d ((struct wsdisplay_msgattrs *)data) 1141 (*scr->scr_dconf->wsemul->getmsgattrs) 1142 (scr->scr_dconf->wsemulcookie, d); 1143 return (0); 1144 #undef d 1145 1146 case WSDISPLAYIO_SMSGATTRS: { 1147 #define d ((struct wsdisplay_msgattrs *)data) 1148 int i; 1149 for (i = 0; i < WSDISPLAY_MAXSCREEN; i++) 1150 if (sc->sc_scr[i] != NULL) 1151 (*sc->sc_scr[i]->scr_dconf->wsemul->setmsgattrs) 1152 (sc->sc_scr[i]->scr_dconf->wsemulcookie, 1153 sc->sc_scr[i]->scr_dconf->scrdata, 1154 d); 1155 } 1156 return (0); 1157 #undef d 1158 #else 1159 case WSDISPLAYIO_GMSGATTRS: 1160 case WSDISPLAYIO_SMSGATTRS: 1161 return (ENODEV); 1162 #endif 1163 } 1164 1165 /* check ioctls for display */ 1166 return ((*sc->sc_accessops->ioctl)(sc->sc_accesscookie, 1167 scr->scr_dconf->emulcookie, cmd, data, flag, l)); 1168 } 1169 1170 int 1171 wsdisplay_stat_ioctl(struct wsdisplay_softc *sc, u_long cmd, caddr_t data, 1172 int flag, struct lwp *l) 1173 { 1174 switch (cmd) { 1175 case WSDISPLAYIO_GETACTIVESCREEN: 1176 *(int*)data = wsdisplay_getactivescreen(sc); 1177 return (0); 1178 } 1179 1180 return (EPASSTHROUGH); 1181 } 1182 1183 int 1184 wsdisplay_cfg_ioctl(struct wsdisplay_softc *sc, u_long cmd, caddr_t data, 1185 int flag, struct lwp *l) 1186 { 1187 int error; 1188 char *type, typebuf[16], *emul, emulbuf[16]; 1189 void *tbuf; 1190 u_int fontsz; 1191 #if defined(COMPAT_14) && NWSKBD > 0 1192 struct wsmux_device wsmuxdata; 1193 #endif 1194 #if NWSKBD > 0 1195 struct wsevsrc *inp; 1196 #endif 1197 1198 switch (cmd) { 1199 case WSDISPLAYIO_ADDSCREEN: 1200 #define d ((struct wsdisplay_addscreendata *)data) 1201 if (d->screentype) { 1202 error = copyinstr(d->screentype, typebuf, 1203 sizeof(typebuf), 0); 1204 if (error) 1205 return (error); 1206 type = typebuf; 1207 } else 1208 type = 0; 1209 if (d->emul) { 1210 error = copyinstr(d->emul, emulbuf, sizeof(emulbuf),0); 1211 if (error) 1212 return (error); 1213 emul = emulbuf; 1214 } else 1215 emul = 0; 1216 1217 if ((error = wsdisplay_addscreen(sc, d->idx, type, emul)) == 0) 1218 wsdisplay_addscreen_print(sc, d->idx, 0); 1219 return (error); 1220 #undef d 1221 case WSDISPLAYIO_DELSCREEN: 1222 #define d ((struct wsdisplay_delscreendata *)data) 1223 return (wsdisplay_delscreen(sc, d->idx, d->flags)); 1224 #undef d 1225 case WSDISPLAYIO_LDFONT: 1226 #define d ((struct wsdisplay_font *)data) 1227 if (!sc->sc_accessops->load_font) 1228 return (EINVAL); 1229 if (d->name) { 1230 error = copyinstr(d->name, typebuf, sizeof(typebuf), 0); 1231 if (error) 1232 return (error); 1233 d->name = typebuf; 1234 } else 1235 d->name = "loaded"; /* ??? */ 1236 fontsz = d->fontheight * d->stride * d->numchars; 1237 if (fontsz > WSDISPLAY_MAXFONTSZ) 1238 return (EINVAL); 1239 1240 tbuf = malloc(fontsz, M_DEVBUF, M_WAITOK); 1241 error = copyin(d->data, tbuf, fontsz); 1242 if (error) { 1243 free(tbuf, M_DEVBUF); 1244 return (error); 1245 } 1246 d->data = tbuf; 1247 error = 1248 (*sc->sc_accessops->load_font)(sc->sc_accesscookie, 0, d); 1249 free(tbuf, M_DEVBUF); 1250 #undef d 1251 return (error); 1252 1253 #if NWSKBD > 0 1254 #ifdef COMPAT_14 1255 case _O_WSDISPLAYIO_SETKEYBOARD: 1256 #define d ((struct wsdisplay_kbddata *)data) 1257 inp = sc->sc_input; 1258 if (inp == NULL) 1259 return (ENXIO); 1260 switch (d->op) { 1261 case _O_WSDISPLAY_KBD_ADD: 1262 if (d->idx == -1) { 1263 d->idx = wskbd_pickfree(); 1264 if (d->idx == -1) 1265 return (ENXIO); 1266 } 1267 wsmuxdata.type = WSMUX_KBD; 1268 wsmuxdata.idx = d->idx; 1269 return (wsevsrc_ioctl(inp, WSMUX_ADD_DEVICE, 1270 &wsmuxdata, flag, l)); 1271 case _O_WSDISPLAY_KBD_DEL: 1272 wsmuxdata.type = WSMUX_KBD; 1273 wsmuxdata.idx = d->idx; 1274 return (wsevsrc_ioctl(inp, WSMUX_REMOVE_DEVICE, 1275 &wsmuxdata, flag, l)); 1276 default: 1277 return (EINVAL); 1278 } 1279 #undef d 1280 #endif 1281 1282 case WSMUXIO_ADD_DEVICE: 1283 #define d ((struct wsmux_device *)data) 1284 if (d->idx == -1 && d->type == WSMUX_KBD) 1285 d->idx = wskbd_pickfree(); 1286 #undef d 1287 /* fall into */ 1288 case WSMUXIO_INJECTEVENT: 1289 case WSMUXIO_REMOVE_DEVICE: 1290 case WSMUXIO_LIST_DEVICES: 1291 inp = sc->sc_input; 1292 if (inp == NULL) 1293 return (ENXIO); 1294 return (wsevsrc_ioctl(inp, cmd, data, flag, l)); 1295 #endif /* NWSKBD > 0 */ 1296 1297 } 1298 return (EPASSTHROUGH); 1299 } 1300 1301 int 1302 wsdisplay_stat_inject(struct device *dev, u_int type, int value) 1303 { 1304 struct wsdisplay_softc *sc = (struct wsdisplay_softc *) dev; 1305 struct wseventvar *evar; 1306 struct wscons_event event; 1307 1308 evar = &sc->evar; 1309 1310 if (evar == NULL) 1311 return (0); 1312 1313 if (evar->q == NULL) 1314 return (1); 1315 1316 event.type = type; 1317 event.value = value; 1318 if (wsevent_inject(evar, &event, 1) != 0) { 1319 log(LOG_WARNING, "wsdisplay: event queue overflow\n"); 1320 return (1); 1321 } 1322 1323 return (0); 1324 } 1325 1326 paddr_t 1327 wsdisplaymmap(dev_t dev, off_t offset, int prot) 1328 { 1329 struct wsdisplay_softc *sc = 1330 device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 1331 struct wsscreen *scr; 1332 1333 if (ISWSDISPLAYSTAT(dev)) 1334 return (-1); 1335 1336 if (ISWSDISPLAYCTL(dev)) 1337 return (-1); 1338 1339 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 1340 return (-1); 1341 1342 if (!(scr->scr_flags & SCR_GRAPHICS)) 1343 return (-1); 1344 1345 /* pass mmap to display */ 1346 return ((*sc->sc_accessops->mmap)(sc->sc_accesscookie, 1347 scr->scr_dconf->emulcookie, offset, prot)); 1348 } 1349 1350 void 1351 wsdisplaystart(struct tty *tp) 1352 { 1353 struct wsdisplay_softc *sc; 1354 struct wsscreen *scr; 1355 int s, n; 1356 u_char *tbuf; 1357 1358 s = spltty(); 1359 if (tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP)) { 1360 splx(s); 1361 return; 1362 } 1363 sc = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(tp->t_dev)); 1364 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(tp->t_dev)]) == NULL) { 1365 splx(s); 1366 return; 1367 } 1368 1369 if (scr->scr_hold_screen) { 1370 tp->t_state |= TS_TIMEOUT; 1371 splx(s); 1372 return; 1373 } 1374 tp->t_state |= TS_BUSY; 1375 splx(s); 1376 1377 /* 1378 * Drain output from ring buffer. 1379 * The output will normally be in one contiguous chunk, but when the 1380 * ring wraps, it will be in two pieces.. one at the end of the ring, 1381 * the other at the start. For performance, rather than loop here, 1382 * we output one chunk, see if there's another one, and if so, output 1383 * it too. 1384 */ 1385 1386 n = ndqb(&tp->t_outq, 0); 1387 tbuf = tp->t_outq.c_cf; 1388 1389 if (!(scr->scr_flags & SCR_GRAPHICS)) { 1390 KASSERT(WSSCREEN_HAS_EMULATOR(scr)); 1391 (*scr->scr_dconf->wsemul->output)(scr->scr_dconf->wsemulcookie, 1392 tbuf, n, 0); 1393 } 1394 ndflush(&tp->t_outq, n); 1395 1396 if ((n = ndqb(&tp->t_outq, 0)) > 0) { 1397 tbuf = tp->t_outq.c_cf; 1398 1399 if (!(scr->scr_flags & SCR_GRAPHICS)) { 1400 KASSERT(WSSCREEN_HAS_EMULATOR(scr)); 1401 (*scr->scr_dconf->wsemul->output) 1402 (scr->scr_dconf->wsemulcookie, tbuf, n, 0); 1403 } 1404 ndflush(&tp->t_outq, n); 1405 } 1406 1407 s = spltty(); 1408 tp->t_state &= ~TS_BUSY; 1409 /* Come back if there's more to do */ 1410 if (tp->t_outq.c_cc) { 1411 tp->t_state |= TS_TIMEOUT; 1412 callout_reset(&tp->t_rstrt_ch, (hz > 128) ? (hz / 128) : 1, 1413 ttrstrt, tp); 1414 } 1415 if (tp->t_outq.c_cc <= tp->t_lowat) { 1416 if (tp->t_state&TS_ASLEEP) { 1417 tp->t_state &= ~TS_ASLEEP; 1418 wakeup(&tp->t_outq); 1419 } 1420 selwakeup(&tp->t_wsel); 1421 } 1422 splx(s); 1423 } 1424 1425 void 1426 wsdisplaystop(struct tty *tp, int flag) 1427 { 1428 int s; 1429 1430 s = spltty(); 1431 if (ISSET(tp->t_state, TS_BUSY)) 1432 if (!ISSET(tp->t_state, TS_TTSTOP)) 1433 SET(tp->t_state, TS_FLUSH); 1434 splx(s); 1435 } 1436 1437 /* Set line parameters. */ 1438 int 1439 wsdisplayparam(struct tty *tp, struct termios *t) 1440 { 1441 1442 tp->t_ispeed = t->c_ispeed; 1443 tp->t_ospeed = t->c_ospeed; 1444 tp->t_cflag = t->c_cflag; 1445 return 0; 1446 } 1447 1448 /* 1449 * Callbacks for the emulation code. 1450 */ 1451 void 1452 wsdisplay_emulbell(void *v) 1453 { 1454 struct wsscreen *scr = v; 1455 1456 if (scr == NULL) /* console, before real attach */ 1457 return; 1458 1459 if (scr->scr_flags & SCR_GRAPHICS) /* can this happen? */ 1460 return; 1461 1462 (void) wsdisplay_internal_ioctl(scr->sc, scr, WSKBDIO_BELL, NULL, 1463 FWRITE, NULL); 1464 } 1465 1466 void 1467 wsdisplay_emulinput(void *v, const u_char *data, u_int count) 1468 { 1469 struct wsscreen *scr = v; 1470 struct tty *tp; 1471 1472 if (v == NULL) /* console, before real attach */ 1473 return; 1474 1475 if (scr->scr_flags & SCR_GRAPHICS) /* XXX can't happen */ 1476 return; 1477 if (!WSSCREEN_HAS_TTY(scr)) 1478 return; 1479 1480 tp = scr->scr_tty; 1481 while (count-- > 0) 1482 (*tp->t_linesw->l_rint)(*data++, tp); 1483 } 1484 1485 /* 1486 * Calls from the keyboard interface. 1487 */ 1488 void 1489 wsdisplay_kbdinput(struct device *dev, keysym_t ks) 1490 { 1491 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)dev; 1492 struct wsscreen *scr; 1493 const char *dp; 1494 int count; 1495 struct tty *tp; 1496 1497 KASSERT(sc != NULL); 1498 1499 scr = sc->sc_focus; 1500 1501 if (!scr || !WSSCREEN_HAS_TTY(scr)) 1502 return; 1503 1504 tp = scr->scr_tty; 1505 1506 if (KS_GROUP(ks) == KS_GROUP_Ascii) 1507 (*tp->t_linesw->l_rint)(KS_VALUE(ks), tp); 1508 else if (WSSCREEN_HAS_EMULATOR(scr)) { 1509 count = (*scr->scr_dconf->wsemul->translate) 1510 (scr->scr_dconf->wsemulcookie, ks, &dp); 1511 while (count-- > 0) 1512 (*tp->t_linesw->l_rint)(*dp++, tp); 1513 } 1514 } 1515 1516 #if defined(WSDISPLAY_COMPAT_RAWKBD) 1517 int 1518 wsdisplay_update_rawkbd(struct wsdisplay_softc *sc, struct wsscreen *scr) 1519 { 1520 #if NWSKBD > 0 1521 int s, raw, data, error; 1522 struct wsevsrc *inp; 1523 1524 s = spltty(); 1525 1526 raw = (scr ? scr->scr_rawkbd : 0); 1527 1528 if (scr != sc->sc_focus || 1529 sc->sc_rawkbd == raw) { 1530 splx(s); 1531 return (0); 1532 } 1533 1534 data = raw ? WSKBD_RAW : WSKBD_TRANSLATED; 1535 inp = sc->sc_input; 1536 if (inp == NULL) 1537 return (ENXIO); 1538 error = wsevsrc_display_ioctl(inp, WSKBDIO_SETMODE, &data, 0, 0); 1539 if (!error) 1540 sc->sc_rawkbd = raw; 1541 splx(s); 1542 return (error); 1543 #else 1544 return (0); 1545 #endif 1546 } 1547 #endif 1548 1549 int 1550 wsdisplay_switch3(void *arg, int error, int waitok) 1551 { 1552 struct wsdisplay_softc *sc = arg; 1553 int no; 1554 struct wsscreen *scr; 1555 1556 if (!(sc->sc_flags & SC_SWITCHPENDING)) { 1557 printf("wsdisplay_switch3: not switching\n"); 1558 return (EINVAL); 1559 } 1560 1561 no = sc->sc_screenwanted; 1562 if (no < 0 || no >= WSDISPLAY_MAXSCREEN) 1563 panic("wsdisplay_switch3: invalid screen %d", no); 1564 scr = sc->sc_scr[no]; 1565 if (!scr) { 1566 printf("wsdisplay_switch3: screen %d disappeared\n", no); 1567 error = ENXIO; 1568 } 1569 1570 if (error) { 1571 /* try to recover, avoid recursion */ 1572 1573 if (sc->sc_oldscreen == WSDISPLAY_NULLSCREEN) { 1574 printf("wsdisplay_switch3: giving up\n"); 1575 sc->sc_focus = 0; 1576 #ifdef WSDISPLAY_COMPAT_RAWKBD 1577 wsdisplay_update_rawkbd(sc, 0); 1578 #endif 1579 sc->sc_flags &= ~SC_SWITCHPENDING; 1580 return (error); 1581 } 1582 1583 sc->sc_screenwanted = sc->sc_oldscreen; 1584 sc->sc_oldscreen = WSDISPLAY_NULLSCREEN; 1585 return (wsdisplay_switch1(arg, 0, waitok)); 1586 } 1587 1588 sc->sc_flags &= ~SC_SWITCHPENDING; 1589 1590 if (!error && (scr->scr_flags & SCR_WAITACTIVE)) 1591 wakeup(scr); 1592 return (error); 1593 } 1594 1595 int 1596 wsdisplay_switch2(void *arg, int error, int waitok) 1597 { 1598 struct wsdisplay_softc *sc = arg; 1599 int no; 1600 struct wsscreen *scr; 1601 1602 if (!(sc->sc_flags & SC_SWITCHPENDING)) { 1603 printf("wsdisplay_switch2: not switching\n"); 1604 return (EINVAL); 1605 } 1606 1607 no = sc->sc_screenwanted; 1608 if (no < 0 || no >= WSDISPLAY_MAXSCREEN) 1609 panic("wsdisplay_switch2: invalid screen %d", no); 1610 scr = sc->sc_scr[no]; 1611 if (!scr) { 1612 printf("wsdisplay_switch2: screen %d disappeared\n", no); 1613 error = ENXIO; 1614 } 1615 1616 if (error) { 1617 /* try to recover, avoid recursion */ 1618 1619 if (sc->sc_oldscreen == WSDISPLAY_NULLSCREEN) { 1620 printf("wsdisplay_switch2: giving up\n"); 1621 sc->sc_focus = 0; 1622 sc->sc_flags &= ~SC_SWITCHPENDING; 1623 return (error); 1624 } 1625 1626 sc->sc_screenwanted = sc->sc_oldscreen; 1627 sc->sc_oldscreen = WSDISPLAY_NULLSCREEN; 1628 return (wsdisplay_switch1(arg, 0, waitok)); 1629 } 1630 1631 sc->sc_focusidx = no; 1632 sc->sc_focus = scr; 1633 1634 #ifdef WSDISPLAY_COMPAT_RAWKBD 1635 (void) wsdisplay_update_rawkbd(sc, scr); 1636 #endif 1637 /* keyboard map??? */ 1638 1639 #define wsswitch_cb3 ((void (*)(void *, int, int))wsdisplay_switch3) 1640 if (scr->scr_syncops) { 1641 error = (*scr->scr_syncops->attach)(scr->scr_synccookie, waitok, 1642 sc->sc_isconsole && wsdisplay_cons_pollmode ? 0 : wsswitch_cb3, sc); 1643 if (error == EAGAIN) { 1644 /* switch will be done asynchronously */ 1645 return (0); 1646 } 1647 } 1648 1649 return (wsdisplay_switch3(sc, error, waitok)); 1650 } 1651 1652 int 1653 wsdisplay_switch1(void *arg, int error, int waitok) 1654 { 1655 struct wsdisplay_softc *sc = arg; 1656 int no; 1657 struct wsscreen *scr; 1658 1659 if (!(sc->sc_flags & SC_SWITCHPENDING)) { 1660 printf("wsdisplay_switch1: not switching\n"); 1661 return (EINVAL); 1662 } 1663 1664 no = sc->sc_screenwanted; 1665 if (no == WSDISPLAY_NULLSCREEN) { 1666 sc->sc_flags &= ~SC_SWITCHPENDING; 1667 if (!error) { 1668 sc->sc_focus = 0; 1669 } 1670 wakeup(sc); 1671 return (error); 1672 } 1673 if (no < 0 || no >= WSDISPLAY_MAXSCREEN) 1674 panic("wsdisplay_switch1: invalid screen %d", no); 1675 scr = sc->sc_scr[no]; 1676 if (!scr) { 1677 printf("wsdisplay_switch1: screen %d disappeared\n", no); 1678 error = ENXIO; 1679 } 1680 1681 if (error) { 1682 sc->sc_flags &= ~SC_SWITCHPENDING; 1683 return (error); 1684 } 1685 1686 #define wsswitch_cb2 ((void (*)(void *, int, int))wsdisplay_switch2) 1687 error = (*sc->sc_accessops->show_screen)(sc->sc_accesscookie, 1688 scr->scr_dconf->emulcookie, 1689 waitok, 1690 sc->sc_isconsole && wsdisplay_cons_pollmode ? 0 : wsswitch_cb2, sc); 1691 if (error == EAGAIN) { 1692 /* switch will be done asynchronously */ 1693 return (0); 1694 } 1695 1696 return (wsdisplay_switch2(sc, error, waitok)); 1697 } 1698 1699 int 1700 wsdisplay_switch(struct device *dev, int no, int waitok) 1701 { 1702 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)dev; 1703 int s, res = 0; 1704 struct wsscreen *scr; 1705 1706 if (no != WSDISPLAY_NULLSCREEN) { 1707 if ((no < 0 || no >= WSDISPLAY_MAXSCREEN)) 1708 return (EINVAL); 1709 if (sc->sc_scr[no] == NULL) 1710 return (ENXIO); 1711 } 1712 1713 wsdisplay_stat_inject(dev, WSCONS_EVENT_SCREEN_SWITCH, no); 1714 1715 s = spltty(); 1716 1717 if ((sc->sc_focus && no == sc->sc_focusidx) || 1718 (sc->sc_focus == NULL && no == WSDISPLAY_NULLSCREEN)) { 1719 splx(s); 1720 return (0); 1721 } 1722 1723 if (sc->sc_flags & SC_SWITCHPENDING) { 1724 splx(s); 1725 return (EBUSY); 1726 } 1727 1728 sc->sc_flags |= SC_SWITCHPENDING; 1729 sc->sc_screenwanted = no; 1730 1731 splx(s); 1732 1733 scr = sc->sc_focus; 1734 if (!scr) { 1735 sc->sc_oldscreen = WSDISPLAY_NULLSCREEN; 1736 return (wsdisplay_switch1(sc, 0, waitok)); 1737 } else 1738 sc->sc_oldscreen = sc->sc_focusidx; 1739 1740 #define wsswitch_cb1 ((void (*)(void *, int, int))wsdisplay_switch1) 1741 if (scr->scr_syncops) { 1742 res = (*scr->scr_syncops->detach)(scr->scr_synccookie, waitok, 1743 sc->sc_isconsole && wsdisplay_cons_pollmode ? 0 : wsswitch_cb1, sc); 1744 if (res == EAGAIN) { 1745 /* switch will be done asynchronously */ 1746 return (0); 1747 } 1748 } else if (scr->scr_flags & SCR_GRAPHICS) { 1749 /* no way to save state */ 1750 res = EBUSY; 1751 } 1752 1753 return (wsdisplay_switch1(sc, res, waitok)); 1754 } 1755 1756 void 1757 wsdisplay_reset(struct device *dev, enum wsdisplay_resetops op) 1758 { 1759 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)dev; 1760 struct wsscreen *scr; 1761 1762 KASSERT(sc != NULL); 1763 scr = sc->sc_focus; 1764 1765 if (!scr) 1766 return; 1767 1768 switch (op) { 1769 case WSDISPLAY_RESETEMUL: 1770 if (!WSSCREEN_HAS_EMULATOR(scr)) 1771 break; 1772 (*scr->scr_dconf->wsemul->reset)(scr->scr_dconf->wsemulcookie, 1773 WSEMUL_RESET); 1774 break; 1775 case WSDISPLAY_RESETCLOSE: 1776 wsdisplay_closescreen(sc, scr); 1777 break; 1778 } 1779 } 1780 1781 /* 1782 * Interface for (external) VT switch / process synchronization code 1783 */ 1784 int 1785 wsscreen_attach_sync(struct wsscreen *scr, const struct wscons_syncops *ops, 1786 void *cookie) 1787 { 1788 if (scr->scr_syncops) { 1789 /* 1790 * The screen is already claimed. 1791 * Check if the owner is still alive. 1792 */ 1793 if ((*scr->scr_syncops->check)(scr->scr_synccookie)) 1794 return (EBUSY); 1795 } 1796 scr->scr_syncops = ops; 1797 scr->scr_synccookie = cookie; 1798 return (0); 1799 } 1800 1801 int 1802 wsscreen_detach_sync(struct wsscreen *scr) 1803 { 1804 if (!scr->scr_syncops) 1805 return (EINVAL); 1806 scr->scr_syncops = 0; 1807 return (0); 1808 } 1809 1810 int 1811 wsscreen_lookup_sync(struct wsscreen *scr, 1812 const struct wscons_syncops *ops, /* used as ID */ 1813 void **cookiep) 1814 { 1815 if (!scr->scr_syncops || ops != scr->scr_syncops) 1816 return (EINVAL); 1817 *cookiep = scr->scr_synccookie; 1818 return (0); 1819 } 1820 1821 /* 1822 * Interface to virtual screen stuff 1823 */ 1824 int 1825 wsdisplay_maxscreenidx(struct wsdisplay_softc *sc) 1826 { 1827 return (WSDISPLAY_MAXSCREEN - 1); 1828 } 1829 1830 int 1831 wsdisplay_screenstate(struct wsdisplay_softc *sc, int idx) 1832 { 1833 if (idx < 0 || idx >= WSDISPLAY_MAXSCREEN) 1834 return (EINVAL); 1835 if (!sc->sc_scr[idx]) 1836 return (ENXIO); 1837 return ((sc->sc_scr[idx]->scr_flags & SCR_OPEN) ? EBUSY : 0); 1838 } 1839 1840 int 1841 wsdisplay_getactivescreen(struct wsdisplay_softc *sc) 1842 { 1843 return (sc->sc_focus ? sc->sc_focusidx : WSDISPLAY_NULLSCREEN); 1844 } 1845 1846 int 1847 wsscreen_switchwait(struct wsdisplay_softc *sc, int no) 1848 { 1849 struct wsscreen *scr; 1850 int s, res = 0; 1851 1852 if (no == WSDISPLAY_NULLSCREEN) { 1853 s = spltty(); 1854 while (sc->sc_focus && res == 0) { 1855 res = tsleep(sc, PCATCH, "wswait", 0); 1856 } 1857 splx(s); 1858 return (res); 1859 } 1860 1861 if (no < 0 || no >= WSDISPLAY_MAXSCREEN) 1862 return (ENXIO); 1863 scr = sc->sc_scr[no]; 1864 if (!scr) 1865 return (ENXIO); 1866 1867 s = spltty(); 1868 if (scr != sc->sc_focus) { 1869 scr->scr_flags |= SCR_WAITACTIVE; 1870 res = tsleep(scr, PCATCH, "wswait", 0); 1871 if (scr != sc->sc_scr[no]) 1872 res = ENXIO; /* disappeared in the meantime */ 1873 else 1874 scr->scr_flags &= ~SCR_WAITACTIVE; 1875 } 1876 splx(s); 1877 return (res); 1878 } 1879 1880 void 1881 wsdisplay_kbdholdscreen(struct device *dev, int hold) 1882 { 1883 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)dev; 1884 struct wsscreen *scr; 1885 1886 scr = sc->sc_focus; 1887 1888 if (hold) 1889 scr->scr_hold_screen = 1; 1890 else { 1891 scr->scr_hold_screen = 0; 1892 callout_reset(&scr->scr_tty->t_rstrt_ch, 0, 1893 ttrstrt, scr->scr_tty); /* "immediate" */ 1894 } 1895 } 1896 1897 #if NWSKBD > 0 1898 void 1899 wsdisplay_set_console_kbd(struct wsevsrc *src) 1900 { 1901 if (wsdisplay_console_device == NULL) { 1902 src->me_dispdv = NULL; 1903 return; 1904 } 1905 #if NWSMUX > 0 1906 if (wsmux_attach_sc((struct wsmux_softc *) 1907 wsdisplay_console_device->sc_input, src)) { 1908 src->me_dispdv = NULL; 1909 return; 1910 } 1911 #else 1912 wsdisplay_console_device->sc_input = src; 1913 #endif 1914 src->me_dispdv = &wsdisplay_console_device->sc_dv; 1915 } 1916 #endif /* NWSKBD > 0 */ 1917 1918 /* 1919 * Console interface. 1920 */ 1921 void 1922 wsdisplay_cnputc(dev_t dev, int i) 1923 { 1924 struct wsscreen_internal *dc; 1925 u_char c = i; 1926 1927 if (!wsdisplay_console_initted) 1928 return; 1929 1930 if ((wsdisplay_console_device != NULL) && 1931 (wsdisplay_console_device->sc_scr[0] != NULL) && 1932 (wsdisplay_console_device->sc_scr[0]->scr_flags & SCR_GRAPHICS)) 1933 return; 1934 1935 dc = &wsdisplay_console_conf; 1936 (*dc->wsemul->output)(dc->wsemulcookie, &c, 1, 1); 1937 } 1938 1939 static int 1940 wsdisplay_getc_dummy(dev_t dev) 1941 { 1942 /* panic? */ 1943 return (0); 1944 } 1945 1946 static void 1947 wsdisplay_pollc(dev_t dev, int on) 1948 { 1949 1950 wsdisplay_cons_pollmode = on; 1951 1952 /* notify to fb drivers */ 1953 if (wsdisplay_console_device != NULL && 1954 wsdisplay_console_device->sc_accessops->pollc != NULL) 1955 (*wsdisplay_console_device->sc_accessops->pollc) 1956 (wsdisplay_console_device->sc_accesscookie, on); 1957 1958 /* notify to kbd drivers */ 1959 if (wsdisplay_cons_kbd_pollc) 1960 (*wsdisplay_cons_kbd_pollc)(NODEV, on); 1961 } 1962 1963 void 1964 wsdisplay_set_cons_kbd(int (*get)(dev_t), void (*poll)(dev_t, int), 1965 void (*bell)(dev_t, u_int, u_int, u_int)) 1966 { 1967 wsdisplay_cons.cn_getc = get; 1968 wsdisplay_cons.cn_bell = bell; 1969 wsdisplay_cons_kbd_pollc = poll; 1970 } 1971 1972 void 1973 wsdisplay_unset_cons_kbd(void) 1974 { 1975 wsdisplay_cons.cn_getc = wsdisplay_getc_dummy; 1976 wsdisplay_cons.cn_bell = NULL; 1977 wsdisplay_cons_kbd_pollc = 0; 1978 } 1979 1980 /* 1981 * Switch the console display to it's first screen. 1982 */ 1983 void 1984 wsdisplay_switchtoconsole(void) 1985 { 1986 struct wsdisplay_softc *sc; 1987 struct wsscreen *scr; 1988 1989 if (wsdisplay_console_device != NULL) { 1990 sc = wsdisplay_console_device; 1991 if ((scr = sc->sc_scr[0]) == NULL) 1992 return; 1993 (*sc->sc_accessops->show_screen)(sc->sc_accesscookie, 1994 scr->scr_dconf->emulcookie, 1995 0, NULL, NULL); 1996 } 1997 } 1998 1999 /* 2000 * Switch the console at shutdown. 2001 */ 2002 static void 2003 wsdisplay_shutdownhook(void *arg) 2004 { 2005 2006 wsdisplay_switchtoconsole(); 2007 } 2008
Indexes created Sun Oct 19 19:09:49 GMT 2025