wsdisplay.c revision 1.95
1 /* $NetBSD: wsdisplay.c,v 1.95 2006/04/12 20:13:21 macallan 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 1.95 2006/04/12 20:13:21 macallan 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 suser(l->l_proc->p_ucred, &l->l_proc->p_acflag) != 0) 760 return EBUSY; 761 tp->t_state |= TS_CARR_ON; 762 763 error = ((*tp->t_linesw->l_open)(dev, tp)); 764 if (error) 765 return (error); 766 767 if (newopen && WSSCREEN_HAS_EMULATOR(scr)) { 768 /* set window sizes as appropriate, and reset 769 the emulation */ 770 tp->t_winsize.ws_row = scr->scr_dconf->scrdata->nrows; 771 tp->t_winsize.ws_col = scr->scr_dconf->scrdata->ncols; 772 773 /* wsdisplay_set_emulation() */ 774 } 775 } 776 777 scr->scr_flags |= SCR_OPEN; 778 return (0); 779 } 780 781 int 782 wsdisplayclose(dev_t dev, int flag, int mode, struct lwp *l) 783 { 784 struct wsdisplay_softc *sc; 785 struct tty *tp; 786 struct wsscreen *scr; 787 788 sc = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 789 790 if (ISWSDISPLAYSTAT(dev)) { 791 wsevent_fini(&sc->evar); 792 return (0); 793 } 794 795 if (ISWSDISPLAYCTL(dev)) 796 return (0); 797 798 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 799 return (0); 800 801 if (WSSCREEN_HAS_TTY(scr)) { 802 if (scr->scr_hold_screen) { 803 int s; 804 805 /* XXX RESET KEYBOARD LEDS, etc. */ 806 s = spltty(); /* avoid conflict with keyboard */ 807 wsdisplay_kbdholdscreen((struct device *)sc, 0); 808 splx(s); 809 } 810 tp = scr->scr_tty; 811 (*tp->t_linesw->l_close)(tp, flag); 812 ttyclose(tp); 813 } 814 815 if (scr->scr_syncops) 816 (*scr->scr_syncops->destroy)(scr->scr_synccookie); 817 818 if (WSSCREEN_HAS_EMULATOR(scr)) { 819 scr->scr_flags &= ~SCR_GRAPHICS; 820 (*scr->scr_dconf->wsemul->reset)(scr->scr_dconf->wsemulcookie, 821 WSEMUL_RESET); 822 if (wsdisplay_clearonclose) 823 (*scr->scr_dconf->wsemul->reset) 824 (scr->scr_dconf->wsemulcookie, 825 WSEMUL_CLEARSCREEN); 826 } 827 828 #ifdef WSDISPLAY_COMPAT_RAWKBD 829 if (scr->scr_rawkbd) { 830 int kbmode = WSKBD_TRANSLATED; 831 (void)wsdisplay_internal_ioctl(sc, scr, WSKBDIO_SETMODE, 832 (caddr_t)&kbmode, 0, l); 833 } 834 #endif 835 836 scr->scr_flags &= ~SCR_OPEN; 837 838 return (0); 839 } 840 841 int 842 wsdisplayread(dev_t dev, struct uio *uio, int flag) 843 { 844 struct wsdisplay_softc *sc; 845 struct tty *tp; 846 struct wsscreen *scr; 847 int error; 848 849 sc = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 850 851 if (ISWSDISPLAYSTAT(dev)) { 852 error = wsevent_read(&sc->evar, uio, flag); 853 return (error); 854 } 855 856 if (ISWSDISPLAYCTL(dev)) 857 return (0); 858 859 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 860 return (ENXIO); 861 862 if (!WSSCREEN_HAS_TTY(scr)) 863 return (ENODEV); 864 865 tp = scr->scr_tty; 866 return ((*tp->t_linesw->l_read)(tp, uio, flag)); 867 } 868 869 int 870 wsdisplaywrite(dev_t dev, struct uio *uio, int flag) 871 { 872 struct wsdisplay_softc *sc; 873 struct tty *tp; 874 struct wsscreen *scr; 875 876 sc = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 877 878 if (ISWSDISPLAYSTAT(dev)) { 879 return (0); 880 } 881 882 if (ISWSDISPLAYCTL(dev)) 883 return (0); 884 885 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 886 return (ENXIO); 887 888 if (!WSSCREEN_HAS_TTY(scr)) 889 return (ENODEV); 890 891 tp = scr->scr_tty; 892 return ((*tp->t_linesw->l_write)(tp, uio, flag)); 893 } 894 895 int 896 wsdisplaypoll(dev_t dev, int events, struct lwp *l) 897 { 898 struct wsdisplay_softc *sc; 899 struct tty *tp; 900 struct wsscreen *scr; 901 902 sc = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 903 904 if (ISWSDISPLAYSTAT(dev)) 905 return (wsevent_poll(&sc->evar, events, l)); 906 907 if (ISWSDISPLAYCTL(dev)) 908 return (0); 909 910 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 911 return (POLLHUP); 912 913 if (!WSSCREEN_HAS_TTY(scr)) 914 return (POLLERR); 915 916 tp = scr->scr_tty; 917 return ((*tp->t_linesw->l_poll)(tp, events, l)); 918 } 919 920 int 921 wsdisplaykqfilter(dev, kn) 922 dev_t dev; 923 struct knote *kn; 924 { 925 struct wsdisplay_softc *sc = 926 device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 927 struct wsscreen *scr; 928 929 if (ISWSDISPLAYCTL(dev)) 930 return (1); 931 932 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 933 return (1); 934 935 936 if (WSSCREEN_HAS_TTY(scr)) 937 return (ttykqfilter(dev, kn)); 938 else 939 return (1); 940 } 941 942 struct tty * 943 wsdisplaytty(dev_t dev) 944 { 945 struct wsdisplay_softc *sc; 946 struct wsscreen *scr; 947 948 sc = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 949 950 if (ISWSDISPLAYSTAT(dev)) 951 panic("wsdisplaytty() on status device"); 952 953 if (ISWSDISPLAYCTL(dev)) 954 panic("wsdisplaytty() on ctl device"); 955 956 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 957 return NULL; 958 959 return (scr->scr_tty); 960 } 961 962 int 963 wsdisplayioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct lwp *l) 964 { 965 struct wsdisplay_softc *sc; 966 struct tty *tp; 967 int error; 968 struct wsscreen *scr; 969 970 sc = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 971 972 #ifdef WSDISPLAY_COMPAT_USL 973 error = wsdisplay_usl_ioctl1(sc, cmd, data, flag, l); 974 if (error != EPASSTHROUGH) 975 return (error); 976 #endif 977 978 if (ISWSDISPLAYSTAT(dev)) 979 return (wsdisplay_stat_ioctl(sc, cmd, data, flag, l)); 980 981 if (ISWSDISPLAYCTL(dev)) 982 return (wsdisplay_cfg_ioctl(sc, cmd, data, flag, l)); 983 984 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 985 return (ENXIO); 986 987 if (WSSCREEN_HAS_TTY(scr)) { 988 tp = scr->scr_tty; 989 990 /* printf("disc\n"); */ 991 /* do the line discipline ioctls first */ 992 error = (*tp->t_linesw->l_ioctl)(tp, cmd, data, flag, l); 993 if (error != EPASSTHROUGH) 994 return (error); 995 996 /* printf("tty\n"); */ 997 /* then the tty ioctls */ 998 error = ttioctl(tp, cmd, data, flag, l); 999 if (error != EPASSTHROUGH) 1000 return (error); 1001 } 1002 1003 #ifdef WSDISPLAY_COMPAT_USL 1004 error = wsdisplay_usl_ioctl2(sc, scr, cmd, data, flag, l); 1005 if (error != EPASSTHROUGH) 1006 return (error); 1007 #endif 1008 1009 return (wsdisplay_internal_ioctl(sc, scr, cmd, data, flag, l)); 1010 } 1011 1012 int 1013 wsdisplay_param(struct device *dev, u_long cmd, struct wsdisplay_param *dp) 1014 { 1015 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)dev; 1016 return ((*sc->sc_accessops->ioctl)(sc->sc_accesscookie, sc->sc_focus, 1017 cmd, (caddr_t)dp, 0, NULL)); 1018 } 1019 1020 int 1021 wsdisplay_internal_ioctl(struct wsdisplay_softc *sc, struct wsscreen *scr, 1022 u_long cmd, caddr_t data, int flag, struct lwp *l) 1023 { 1024 int error; 1025 char namebuf[16]; 1026 struct wsdisplay_font fd; 1027 #ifdef WSDISPLAY_SCROLLSUPPORT 1028 struct wsdisplay_scroll_data *ksdp, *usdp; 1029 #endif 1030 1031 #if NWSKBD > 0 1032 struct wsevsrc *inp; 1033 1034 #ifdef WSDISPLAY_COMPAT_RAWKBD 1035 switch (cmd) { 1036 case WSKBDIO_SETMODE: 1037 scr->scr_rawkbd = (*(int *)data == WSKBD_RAW); 1038 return (wsdisplay_update_rawkbd(sc, scr)); 1039 case WSKBDIO_GETMODE: 1040 *(int *)data = (scr->scr_rawkbd ? 1041 WSKBD_RAW : WSKBD_TRANSLATED); 1042 return (0); 1043 } 1044 #endif 1045 inp = sc->sc_input; 1046 if (inp == NULL) 1047 return (ENXIO); 1048 error = wsevsrc_display_ioctl(inp, cmd, data, flag, l); 1049 if (error != EPASSTHROUGH) 1050 return (error); 1051 #endif /* NWSKBD > 0 */ 1052 1053 switch (cmd) { 1054 case WSDISPLAYIO_GMODE: 1055 if (scr->scr_flags & SCR_GRAPHICS) { 1056 if (scr->scr_flags & SCR_DUMBFB) 1057 *(u_int *)data = WSDISPLAYIO_MODE_DUMBFB; 1058 else 1059 *(u_int *)data = WSDISPLAYIO_MODE_MAPPED; 1060 } else 1061 *(u_int *)data = WSDISPLAYIO_MODE_EMUL; 1062 return (0); 1063 1064 case WSDISPLAYIO_SMODE: 1065 #define d (*(int *)data) 1066 if (d != WSDISPLAYIO_MODE_EMUL && 1067 d != WSDISPLAYIO_MODE_MAPPED && 1068 d != WSDISPLAYIO_MODE_DUMBFB) 1069 return (EINVAL); 1070 1071 if (WSSCREEN_HAS_EMULATOR(scr)) { 1072 scr->scr_flags &= ~SCR_GRAPHICS; 1073 if (d == WSDISPLAYIO_MODE_MAPPED || 1074 d == WSDISPLAYIO_MODE_DUMBFB) 1075 scr->scr_flags |= SCR_GRAPHICS | 1076 ((d == WSDISPLAYIO_MODE_DUMBFB) ? SCR_DUMBFB : 0); 1077 } else if (d == WSDISPLAYIO_MODE_EMUL) 1078 return (EINVAL); 1079 1080 (void)(*sc->sc_accessops->ioctl)(sc->sc_accesscookie, scr, cmd, 1081 data, flag, l); 1082 1083 return (0); 1084 #undef d 1085 1086 #ifdef WSDISPLAY_SCROLLSUPPORT 1087 #define SETSCROLLLINES(dstp, srcp, dfltp) \ 1088 do { \ 1089 (dstp)->fastlines = ((srcp)->which & \ 1090 WSDISPLAY_SCROLL_DOFASTLINES) ? \ 1091 (srcp)->fastlines : (dfltp)->fastlines; \ 1092 (dstp)->slowlines = ((srcp)->which & \ 1093 WSDISPLAY_SCROLL_DOSLOWLINES) ? \ 1094 (srcp)->slowlines : (dfltp)->slowlines; \ 1095 (dstp)->which = WSDISPLAY_SCROLL_DOALL; \ 1096 } while (0) 1097 1098 1099 case WSDISPLAYIO_DSSCROLL: 1100 usdp = (struct wsdisplay_scroll_data *)data; 1101 ksdp = &sc->sc_scroll_values; 1102 SETSCROLLLINES(ksdp, usdp, ksdp); 1103 return (0); 1104 1105 case WSDISPLAYIO_DGSCROLL: 1106 usdp = (struct wsdisplay_scroll_data *)data; 1107 ksdp = &sc->sc_scroll_values; 1108 SETSCROLLLINES(usdp, ksdp, ksdp); 1109 return (0); 1110 #else 1111 case WSDISPLAYIO_DSSCROLL: 1112 case WSDISPLAYIO_DGSCROLL: 1113 return ENODEV; 1114 #endif 1115 1116 case WSDISPLAYIO_SFONT: 1117 #define d ((struct wsdisplay_usefontdata *)data) 1118 if (!sc->sc_accessops->load_font) 1119 return (EINVAL); 1120 if (d->name) { 1121 error = copyinstr(d->name, namebuf, sizeof(namebuf), 0); 1122 if (error) 1123 return (error); 1124 fd.name = namebuf; 1125 } else 1126 fd.name = 0; 1127 fd.data = 0; 1128 error = (*sc->sc_accessops->load_font)(sc->sc_accesscookie, 1129 scr->scr_dconf->emulcookie, &fd); 1130 if (!error && WSSCREEN_HAS_EMULATOR(scr)) 1131 (*scr->scr_dconf->wsemul->reset) 1132 (scr->scr_dconf->wsemulcookie, WSEMUL_SYNCFONT); 1133 return (error); 1134 #undef d 1135 1136 #if defined(WSDISPLAY_CHARFUNCS) 1137 case WSDISPLAYIO_GETWSCHAR: 1138 #define d ((struct wsdisplay_char *)data) 1139 if (!sc->sc_accessops->getwschar) 1140 return (EINVAL); 1141 return ((*sc->sc_accessops->getwschar) 1142 (scr->scr_dconf->emulcookie, d)); 1143 #undef d 1144 1145 case WSDISPLAYIO_PUTWSCHAR: 1146 #define d ((struct wsdisplay_char *)data) 1147 if (!sc->sc_accessops->putwschar) 1148 return (EINVAL); 1149 return ((*sc->sc_accessops->putwschar) 1150 (scr->scr_dconf->emulcookie, d)); 1151 #undef d 1152 #else 1153 case WSDISPLAYIO_PUTWSCHAR: 1154 case WSDISPLAYIO_GETWSCHAR: 1155 return ENODEV; 1156 #endif /* WSDISPLAY_CHARFUNCS */ 1157 1158 #ifdef WSDISPLAY_CUSTOM_OUTPUT 1159 case WSDISPLAYIO_GMSGATTRS: 1160 #define d ((struct wsdisplay_msgattrs *)data) 1161 (*scr->scr_dconf->wsemul->getmsgattrs) 1162 (scr->scr_dconf->wsemulcookie, d); 1163 return (0); 1164 #undef d 1165 1166 case WSDISPLAYIO_SMSGATTRS: { 1167 #define d ((struct wsdisplay_msgattrs *)data) 1168 int i; 1169 for (i = 0; i < WSDISPLAY_MAXSCREEN; i++) 1170 if (sc->sc_scr[i] != NULL) 1171 (*sc->sc_scr[i]->scr_dconf->wsemul->setmsgattrs) 1172 (sc->sc_scr[i]->scr_dconf->wsemulcookie, 1173 sc->sc_scr[i]->scr_dconf->scrdata, 1174 d); 1175 } 1176 return (0); 1177 #undef d 1178 #else 1179 case WSDISPLAYIO_GMSGATTRS: 1180 case WSDISPLAYIO_SMSGATTRS: 1181 return (ENODEV); 1182 #endif 1183 } 1184 1185 /* check ioctls for display */ 1186 return ((*sc->sc_accessops->ioctl)(sc->sc_accesscookie, scr, cmd, data, 1187 flag, l)); 1188 } 1189 1190 int 1191 wsdisplay_stat_ioctl(struct wsdisplay_softc *sc, u_long cmd, caddr_t data, 1192 int flag, struct lwp *l) 1193 { 1194 switch (cmd) { 1195 case WSDISPLAYIO_GETACTIVESCREEN: 1196 *(int*)data = wsdisplay_getactivescreen(sc); 1197 return (0); 1198 } 1199 1200 return (EPASSTHROUGH); 1201 } 1202 1203 int 1204 wsdisplay_cfg_ioctl(struct wsdisplay_softc *sc, u_long cmd, caddr_t data, 1205 int flag, struct lwp *l) 1206 { 1207 int error; 1208 char *type, typebuf[16], *emul, emulbuf[16]; 1209 void *tbuf; 1210 u_int fontsz; 1211 #if defined(COMPAT_14) && NWSKBD > 0 1212 struct wsmux_device wsmuxdata; 1213 #endif 1214 #if NWSKBD > 0 1215 struct wsevsrc *inp; 1216 #endif 1217 1218 switch (cmd) { 1219 case WSDISPLAYIO_ADDSCREEN: 1220 #define d ((struct wsdisplay_addscreendata *)data) 1221 if (d->screentype) { 1222 error = copyinstr(d->screentype, typebuf, 1223 sizeof(typebuf), 0); 1224 if (error) 1225 return (error); 1226 type = typebuf; 1227 } else 1228 type = 0; 1229 if (d->emul) { 1230 error = copyinstr(d->emul, emulbuf, sizeof(emulbuf),0); 1231 if (error) 1232 return (error); 1233 emul = emulbuf; 1234 } else 1235 emul = 0; 1236 1237 if ((error = wsdisplay_addscreen(sc, d->idx, type, emul)) == 0) 1238 wsdisplay_addscreen_print(sc, d->idx, 0); 1239 return (error); 1240 #undef d 1241 case WSDISPLAYIO_DELSCREEN: 1242 #define d ((struct wsdisplay_delscreendata *)data) 1243 return (wsdisplay_delscreen(sc, d->idx, d->flags)); 1244 #undef d 1245 case WSDISPLAYIO_LDFONT: 1246 #define d ((struct wsdisplay_font *)data) 1247 if (!sc->sc_accessops->load_font) 1248 return (EINVAL); 1249 if (d->name) { 1250 error = copyinstr(d->name, typebuf, sizeof(typebuf), 0); 1251 if (error) 1252 return (error); 1253 d->name = typebuf; 1254 } else 1255 d->name = "loaded"; /* ??? */ 1256 fontsz = d->fontheight * d->stride * d->numchars; 1257 if (fontsz > WSDISPLAY_MAXFONTSZ) 1258 return (EINVAL); 1259 1260 tbuf = malloc(fontsz, M_DEVBUF, M_WAITOK); 1261 error = copyin(d->data, tbuf, fontsz); 1262 if (error) { 1263 free(tbuf, M_DEVBUF); 1264 return (error); 1265 } 1266 d->data = tbuf; 1267 error = 1268 (*sc->sc_accessops->load_font)(sc->sc_accesscookie, 0, d); 1269 free(tbuf, M_DEVBUF); 1270 #undef d 1271 return (error); 1272 1273 #if NWSKBD > 0 1274 #ifdef COMPAT_14 1275 case _O_WSDISPLAYIO_SETKEYBOARD: 1276 #define d ((struct wsdisplay_kbddata *)data) 1277 inp = sc->sc_input; 1278 if (inp == NULL) 1279 return (ENXIO); 1280 switch (d->op) { 1281 case _O_WSDISPLAY_KBD_ADD: 1282 if (d->idx == -1) { 1283 d->idx = wskbd_pickfree(); 1284 if (d->idx == -1) 1285 return (ENXIO); 1286 } 1287 wsmuxdata.type = WSMUX_KBD; 1288 wsmuxdata.idx = d->idx; 1289 return (wsevsrc_ioctl(inp, WSMUX_ADD_DEVICE, 1290 &wsmuxdata, flag, l)); 1291 case _O_WSDISPLAY_KBD_DEL: 1292 wsmuxdata.type = WSMUX_KBD; 1293 wsmuxdata.idx = d->idx; 1294 return (wsevsrc_ioctl(inp, WSMUX_REMOVE_DEVICE, 1295 &wsmuxdata, flag, l)); 1296 default: 1297 return (EINVAL); 1298 } 1299 #undef d 1300 #endif 1301 1302 case WSMUXIO_ADD_DEVICE: 1303 #define d ((struct wsmux_device *)data) 1304 if (d->idx == -1 && d->type == WSMUX_KBD) 1305 d->idx = wskbd_pickfree(); 1306 #undef d 1307 /* fall into */ 1308 case WSMUXIO_INJECTEVENT: 1309 case WSMUXIO_REMOVE_DEVICE: 1310 case WSMUXIO_LIST_DEVICES: 1311 inp = sc->sc_input; 1312 if (inp == NULL) 1313 return (ENXIO); 1314 return (wsevsrc_ioctl(inp, cmd, data, flag, l)); 1315 #endif /* NWSKBD > 0 */ 1316 1317 } 1318 return (EPASSTHROUGH); 1319 } 1320 1321 int 1322 wsdisplay_stat_inject(struct device *dev, u_int type, int value) 1323 { 1324 struct wsdisplay_softc *sc = (struct wsdisplay_softc *) dev; 1325 struct wseventvar *evar; 1326 struct wscons_event event; 1327 1328 evar = &sc->evar; 1329 1330 if (evar == NULL) 1331 return (0); 1332 1333 if (evar->q == NULL) 1334 return (1); 1335 1336 event.type = type; 1337 event.value = value; 1338 if (wsevent_inject(evar, &event, 1) != 0) { 1339 log(LOG_WARNING, "wsdisplay: event queue overflow\n"); 1340 return (1); 1341 } 1342 1343 return (0); 1344 } 1345 1346 paddr_t 1347 wsdisplaymmap(dev_t dev, off_t offset, int prot) 1348 { 1349 struct wsdisplay_softc *sc = 1350 device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 1351 struct wsscreen *scr; 1352 1353 if (ISWSDISPLAYSTAT(dev)) 1354 return (-1); 1355 1356 if (ISWSDISPLAYCTL(dev)) 1357 return (-1); 1358 1359 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 1360 return (-1); 1361 1362 if (!(scr->scr_flags & SCR_GRAPHICS)) 1363 return (-1); 1364 1365 /* pass mmap to display */ 1366 return ((*sc->sc_accessops->mmap)(sc->sc_accesscookie, scr, 1367 offset, prot)); 1368 } 1369 1370 void 1371 wsdisplaystart(struct tty *tp) 1372 { 1373 struct wsdisplay_softc *sc; 1374 struct wsscreen *scr; 1375 int s, n; 1376 u_char *tbuf; 1377 1378 s = spltty(); 1379 if (tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP)) { 1380 splx(s); 1381 return; 1382 } 1383 sc = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(tp->t_dev)); 1384 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(tp->t_dev)]) == NULL) { 1385 splx(s); 1386 return; 1387 } 1388 1389 if (scr->scr_hold_screen) { 1390 tp->t_state |= TS_TIMEOUT; 1391 splx(s); 1392 return; 1393 } 1394 tp->t_state |= TS_BUSY; 1395 splx(s); 1396 1397 /* 1398 * Drain output from ring buffer. 1399 * The output will normally be in one contiguous chunk, but when the 1400 * ring wraps, it will be in two pieces.. one at the end of the ring, 1401 * the other at the start. For performance, rather than loop here, 1402 * we output one chunk, see if there's another one, and if so, output 1403 * it too. 1404 */ 1405 1406 n = ndqb(&tp->t_outq, 0); 1407 tbuf = tp->t_outq.c_cf; 1408 1409 if (!(scr->scr_flags & SCR_GRAPHICS)) { 1410 KASSERT(WSSCREEN_HAS_EMULATOR(scr)); 1411 (*scr->scr_dconf->wsemul->output)(scr->scr_dconf->wsemulcookie, 1412 tbuf, n, 0); 1413 } 1414 ndflush(&tp->t_outq, n); 1415 1416 if ((n = ndqb(&tp->t_outq, 0)) > 0) { 1417 tbuf = tp->t_outq.c_cf; 1418 1419 if (!(scr->scr_flags & SCR_GRAPHICS)) { 1420 KASSERT(WSSCREEN_HAS_EMULATOR(scr)); 1421 (*scr->scr_dconf->wsemul->output) 1422 (scr->scr_dconf->wsemulcookie, tbuf, n, 0); 1423 } 1424 ndflush(&tp->t_outq, n); 1425 } 1426 1427 s = spltty(); 1428 tp->t_state &= ~TS_BUSY; 1429 /* Come back if there's more to do */ 1430 if (tp->t_outq.c_cc) { 1431 tp->t_state |= TS_TIMEOUT; 1432 callout_reset(&tp->t_rstrt_ch, (hz > 128) ? (hz / 128) : 1, 1433 ttrstrt, tp); 1434 } 1435 if (tp->t_outq.c_cc <= tp->t_lowat) { 1436 if (tp->t_state&TS_ASLEEP) { 1437 tp->t_state &= ~TS_ASLEEP; 1438 wakeup(&tp->t_outq); 1439 } 1440 selwakeup(&tp->t_wsel); 1441 } 1442 splx(s); 1443 } 1444 1445 void 1446 wsdisplaystop(struct tty *tp, int flag) 1447 { 1448 int s; 1449 1450 s = spltty(); 1451 if (ISSET(tp->t_state, TS_BUSY)) 1452 if (!ISSET(tp->t_state, TS_TTSTOP)) 1453 SET(tp->t_state, TS_FLUSH); 1454 splx(s); 1455 } 1456 1457 /* Set line parameters. */ 1458 int 1459 wsdisplayparam(struct tty *tp, struct termios *t) 1460 { 1461 1462 tp->t_ispeed = t->c_ispeed; 1463 tp->t_ospeed = t->c_ospeed; 1464 tp->t_cflag = t->c_cflag; 1465 return 0; 1466 } 1467 1468 /* 1469 * Callbacks for the emulation code. 1470 */ 1471 void 1472 wsdisplay_emulbell(void *v) 1473 { 1474 struct wsscreen *scr = v; 1475 1476 if (scr == NULL) /* console, before real attach */ 1477 return; 1478 1479 if (scr->scr_flags & SCR_GRAPHICS) /* can this happen? */ 1480 return; 1481 1482 (void) wsdisplay_internal_ioctl(scr->sc, scr, WSKBDIO_BELL, NULL, 1483 FWRITE, NULL); 1484 } 1485 1486 void 1487 wsdisplay_emulinput(void *v, const u_char *data, u_int count) 1488 { 1489 struct wsscreen *scr = v; 1490 struct tty *tp; 1491 1492 if (v == NULL) /* console, before real attach */ 1493 return; 1494 1495 if (scr->scr_flags & SCR_GRAPHICS) /* XXX can't happen */ 1496 return; 1497 if (!WSSCREEN_HAS_TTY(scr)) 1498 return; 1499 1500 tp = scr->scr_tty; 1501 while (count-- > 0) 1502 (*tp->t_linesw->l_rint)(*data++, tp); 1503 } 1504 1505 /* 1506 * Calls from the keyboard interface. 1507 */ 1508 void 1509 wsdisplay_kbdinput(struct device *dev, keysym_t ks) 1510 { 1511 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)dev; 1512 struct wsscreen *scr; 1513 const char *dp; 1514 int count; 1515 struct tty *tp; 1516 1517 KASSERT(sc != NULL); 1518 1519 scr = sc->sc_focus; 1520 1521 if (!scr || !WSSCREEN_HAS_TTY(scr)) 1522 return; 1523 1524 tp = scr->scr_tty; 1525 1526 if (KS_GROUP(ks) == KS_GROUP_Ascii) 1527 (*tp->t_linesw->l_rint)(KS_VALUE(ks), tp); 1528 else if (WSSCREEN_HAS_EMULATOR(scr)) { 1529 count = (*scr->scr_dconf->wsemul->translate) 1530 (scr->scr_dconf->wsemulcookie, ks, &dp); 1531 while (count-- > 0) 1532 (*tp->t_linesw->l_rint)(*dp++, tp); 1533 } 1534 } 1535 1536 #if defined(WSDISPLAY_COMPAT_RAWKBD) 1537 int 1538 wsdisplay_update_rawkbd(struct wsdisplay_softc *sc, struct wsscreen *scr) 1539 { 1540 #if NWSKBD > 0 1541 int s, raw, data, error; 1542 struct wsevsrc *inp; 1543 1544 s = spltty(); 1545 1546 raw = (scr ? scr->scr_rawkbd : 0); 1547 1548 if (scr != sc->sc_focus || 1549 sc->sc_rawkbd == raw) { 1550 splx(s); 1551 return (0); 1552 } 1553 1554 data = raw ? WSKBD_RAW : WSKBD_TRANSLATED; 1555 inp = sc->sc_input; 1556 if (inp == NULL) 1557 return (ENXIO); 1558 error = wsevsrc_display_ioctl(inp, WSKBDIO_SETMODE, &data, 0, 0); 1559 if (!error) 1560 sc->sc_rawkbd = raw; 1561 splx(s); 1562 return (error); 1563 #else 1564 return (0); 1565 #endif 1566 } 1567 #endif 1568 1569 int 1570 wsdisplay_switch3(void *arg, int error, int waitok) 1571 { 1572 struct wsdisplay_softc *sc = arg; 1573 int no; 1574 struct wsscreen *scr; 1575 1576 if (!(sc->sc_flags & SC_SWITCHPENDING)) { 1577 printf("wsdisplay_switch3: not switching\n"); 1578 return (EINVAL); 1579 } 1580 1581 no = sc->sc_screenwanted; 1582 if (no < 0 || no >= WSDISPLAY_MAXSCREEN) 1583 panic("wsdisplay_switch3: invalid screen %d", no); 1584 scr = sc->sc_scr[no]; 1585 if (!scr) { 1586 printf("wsdisplay_switch3: screen %d disappeared\n", no); 1587 error = ENXIO; 1588 } 1589 1590 if (error) { 1591 /* try to recover, avoid recursion */ 1592 1593 if (sc->sc_oldscreen == WSDISPLAY_NULLSCREEN) { 1594 printf("wsdisplay_switch3: giving up\n"); 1595 sc->sc_focus = 0; 1596 #ifdef WSDISPLAY_COMPAT_RAWKBD 1597 wsdisplay_update_rawkbd(sc, 0); 1598 #endif 1599 sc->sc_flags &= ~SC_SWITCHPENDING; 1600 return (error); 1601 } 1602 1603 sc->sc_screenwanted = sc->sc_oldscreen; 1604 sc->sc_oldscreen = WSDISPLAY_NULLSCREEN; 1605 return (wsdisplay_switch1(arg, 0, waitok)); 1606 } 1607 1608 sc->sc_flags &= ~SC_SWITCHPENDING; 1609 1610 if (!error && (scr->scr_flags & SCR_WAITACTIVE)) 1611 wakeup(scr); 1612 return (error); 1613 } 1614 1615 int 1616 wsdisplay_switch2(void *arg, int error, int waitok) 1617 { 1618 struct wsdisplay_softc *sc = arg; 1619 int no; 1620 struct wsscreen *scr; 1621 1622 if (!(sc->sc_flags & SC_SWITCHPENDING)) { 1623 printf("wsdisplay_switch2: not switching\n"); 1624 return (EINVAL); 1625 } 1626 1627 no = sc->sc_screenwanted; 1628 if (no < 0 || no >= WSDISPLAY_MAXSCREEN) 1629 panic("wsdisplay_switch2: invalid screen %d", no); 1630 scr = sc->sc_scr[no]; 1631 if (!scr) { 1632 printf("wsdisplay_switch2: screen %d disappeared\n", no); 1633 error = ENXIO; 1634 } 1635 1636 if (error) { 1637 /* try to recover, avoid recursion */ 1638 1639 if (sc->sc_oldscreen == WSDISPLAY_NULLSCREEN) { 1640 printf("wsdisplay_switch2: giving up\n"); 1641 sc->sc_focus = 0; 1642 sc->sc_flags &= ~SC_SWITCHPENDING; 1643 return (error); 1644 } 1645 1646 sc->sc_screenwanted = sc->sc_oldscreen; 1647 sc->sc_oldscreen = WSDISPLAY_NULLSCREEN; 1648 return (wsdisplay_switch1(arg, 0, waitok)); 1649 } 1650 1651 sc->sc_focusidx = no; 1652 sc->sc_focus = scr; 1653 1654 #ifdef WSDISPLAY_COMPAT_RAWKBD 1655 (void) wsdisplay_update_rawkbd(sc, scr); 1656 #endif 1657 /* keyboard map??? */ 1658 1659 #define wsswitch_cb3 ((void (*)(void *, int, int))wsdisplay_switch3) 1660 if (scr->scr_syncops) { 1661 error = (*scr->scr_syncops->attach)(scr->scr_synccookie, waitok, 1662 sc->sc_isconsole && wsdisplay_cons_pollmode ? 0 : wsswitch_cb3, sc); 1663 if (error == EAGAIN) { 1664 /* switch will be done asynchronously */ 1665 return (0); 1666 } 1667 } 1668 1669 return (wsdisplay_switch3(sc, error, waitok)); 1670 } 1671 1672 int 1673 wsdisplay_switch1(void *arg, int error, int waitok) 1674 { 1675 struct wsdisplay_softc *sc = arg; 1676 int no; 1677 struct wsscreen *scr; 1678 1679 if (!(sc->sc_flags & SC_SWITCHPENDING)) { 1680 printf("wsdisplay_switch1: not switching\n"); 1681 return (EINVAL); 1682 } 1683 1684 no = sc->sc_screenwanted; 1685 if (no == WSDISPLAY_NULLSCREEN) { 1686 sc->sc_flags &= ~SC_SWITCHPENDING; 1687 if (!error) { 1688 sc->sc_focus = 0; 1689 } 1690 wakeup(sc); 1691 return (error); 1692 } 1693 if (no < 0 || no >= WSDISPLAY_MAXSCREEN) 1694 panic("wsdisplay_switch1: invalid screen %d", no); 1695 scr = sc->sc_scr[no]; 1696 if (!scr) { 1697 printf("wsdisplay_switch1: screen %d disappeared\n", no); 1698 error = ENXIO; 1699 } 1700 1701 if (error) { 1702 sc->sc_flags &= ~SC_SWITCHPENDING; 1703 return (error); 1704 } 1705 1706 #define wsswitch_cb2 ((void (*)(void *, int, int))wsdisplay_switch2) 1707 error = (*sc->sc_accessops->show_screen)(sc->sc_accesscookie, 1708 scr->scr_dconf->emulcookie, 1709 waitok, 1710 sc->sc_isconsole && wsdisplay_cons_pollmode ? 0 : wsswitch_cb2, sc); 1711 if (error == EAGAIN) { 1712 /* switch will be done asynchronously */ 1713 return (0); 1714 } 1715 1716 return (wsdisplay_switch2(sc, error, waitok)); 1717 } 1718 1719 int 1720 wsdisplay_switch(struct device *dev, int no, int waitok) 1721 { 1722 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)dev; 1723 int s, res = 0; 1724 struct wsscreen *scr; 1725 1726 if (no != WSDISPLAY_NULLSCREEN) { 1727 if ((no < 0 || no >= WSDISPLAY_MAXSCREEN)) 1728 return (EINVAL); 1729 if (sc->sc_scr[no] == NULL) 1730 return (ENXIO); 1731 } 1732 1733 wsdisplay_stat_inject(dev, WSCONS_EVENT_SCREEN_SWITCH, no); 1734 1735 s = spltty(); 1736 1737 if ((sc->sc_focus && no == sc->sc_focusidx) || 1738 (sc->sc_focus == NULL && no == WSDISPLAY_NULLSCREEN)) { 1739 splx(s); 1740 return (0); 1741 } 1742 1743 if (sc->sc_flags & SC_SWITCHPENDING) { 1744 splx(s); 1745 return (EBUSY); 1746 } 1747 1748 sc->sc_flags |= SC_SWITCHPENDING; 1749 sc->sc_screenwanted = no; 1750 1751 splx(s); 1752 1753 scr = sc->sc_focus; 1754 if (!scr) { 1755 sc->sc_oldscreen = WSDISPLAY_NULLSCREEN; 1756 return (wsdisplay_switch1(sc, 0, waitok)); 1757 } else 1758 sc->sc_oldscreen = sc->sc_focusidx; 1759 1760 #define wsswitch_cb1 ((void (*)(void *, int, int))wsdisplay_switch1) 1761 if (scr->scr_syncops) { 1762 res = (*scr->scr_syncops->detach)(scr->scr_synccookie, waitok, 1763 sc->sc_isconsole && wsdisplay_cons_pollmode ? 0 : wsswitch_cb1, sc); 1764 if (res == EAGAIN) { 1765 /* switch will be done asynchronously */ 1766 return (0); 1767 } 1768 } else if (scr->scr_flags & SCR_GRAPHICS) { 1769 /* no way to save state */ 1770 res = EBUSY; 1771 } 1772 1773 return (wsdisplay_switch1(sc, res, waitok)); 1774 } 1775 1776 void 1777 wsdisplay_reset(struct device *dev, enum wsdisplay_resetops op) 1778 { 1779 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)dev; 1780 struct wsscreen *scr; 1781 1782 KASSERT(sc != NULL); 1783 scr = sc->sc_focus; 1784 1785 if (!scr) 1786 return; 1787 1788 switch (op) { 1789 case WSDISPLAY_RESETEMUL: 1790 if (!WSSCREEN_HAS_EMULATOR(scr)) 1791 break; 1792 (*scr->scr_dconf->wsemul->reset)(scr->scr_dconf->wsemulcookie, 1793 WSEMUL_RESET); 1794 break; 1795 case WSDISPLAY_RESETCLOSE: 1796 wsdisplay_closescreen(sc, scr); 1797 break; 1798 } 1799 } 1800 1801 /* 1802 * Interface for (external) VT switch / process synchronization code 1803 */ 1804 int 1805 wsscreen_attach_sync(struct wsscreen *scr, const struct wscons_syncops *ops, 1806 void *cookie) 1807 { 1808 if (scr->scr_syncops) { 1809 /* 1810 * The screen is already claimed. 1811 * Check if the owner is still alive. 1812 */ 1813 if ((*scr->scr_syncops->check)(scr->scr_synccookie)) 1814 return (EBUSY); 1815 } 1816 scr->scr_syncops = ops; 1817 scr->scr_synccookie = cookie; 1818 return (0); 1819 } 1820 1821 int 1822 wsscreen_detach_sync(struct wsscreen *scr) 1823 { 1824 if (!scr->scr_syncops) 1825 return (EINVAL); 1826 scr->scr_syncops = 0; 1827 return (0); 1828 } 1829 1830 int 1831 wsscreen_lookup_sync(struct wsscreen *scr, 1832 const struct wscons_syncops *ops, /* used as ID */ 1833 void **cookiep) 1834 { 1835 if (!scr->scr_syncops || ops != scr->scr_syncops) 1836 return (EINVAL); 1837 *cookiep = scr->scr_synccookie; 1838 return (0); 1839 } 1840 1841 /* 1842 * Interface to virtual screen stuff 1843 */ 1844 int 1845 wsdisplay_maxscreenidx(struct wsdisplay_softc *sc) 1846 { 1847 return (WSDISPLAY_MAXSCREEN - 1); 1848 } 1849 1850 int 1851 wsdisplay_screenstate(struct wsdisplay_softc *sc, int idx) 1852 { 1853 if (idx < 0 || idx >= WSDISPLAY_MAXSCREEN) 1854 return (EINVAL); 1855 if (!sc->sc_scr[idx]) 1856 return (ENXIO); 1857 return ((sc->sc_scr[idx]->scr_flags & SCR_OPEN) ? EBUSY : 0); 1858 } 1859 1860 int 1861 wsdisplay_getactivescreen(struct wsdisplay_softc *sc) 1862 { 1863 return (sc->sc_focus ? sc->sc_focusidx : WSDISPLAY_NULLSCREEN); 1864 } 1865 1866 int 1867 wsscreen_switchwait(struct wsdisplay_softc *sc, int no) 1868 { 1869 struct wsscreen *scr; 1870 int s, res = 0; 1871 1872 if (no == WSDISPLAY_NULLSCREEN) { 1873 s = spltty(); 1874 while (sc->sc_focus && res == 0) { 1875 res = tsleep(sc, PCATCH, "wswait", 0); 1876 } 1877 splx(s); 1878 return (res); 1879 } 1880 1881 if (no < 0 || no >= WSDISPLAY_MAXSCREEN) 1882 return (ENXIO); 1883 scr = sc->sc_scr[no]; 1884 if (!scr) 1885 return (ENXIO); 1886 1887 s = spltty(); 1888 if (scr != sc->sc_focus) { 1889 scr->scr_flags |= SCR_WAITACTIVE; 1890 res = tsleep(scr, PCATCH, "wswait", 0); 1891 if (scr != sc->sc_scr[no]) 1892 res = ENXIO; /* disappeared in the meantime */ 1893 else 1894 scr->scr_flags &= ~SCR_WAITACTIVE; 1895 } 1896 splx(s); 1897 return (res); 1898 } 1899 1900 void 1901 wsdisplay_kbdholdscreen(struct device *dev, int hold) 1902 { 1903 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)dev; 1904 struct wsscreen *scr; 1905 1906 scr = sc->sc_focus; 1907 1908 if (hold) 1909 scr->scr_hold_screen = 1; 1910 else { 1911 scr->scr_hold_screen = 0; 1912 callout_reset(&scr->scr_tty->t_rstrt_ch, 0, 1913 ttrstrt, scr->scr_tty); /* "immediate" */ 1914 } 1915 } 1916 1917 #if NWSKBD > 0 1918 void 1919 wsdisplay_set_console_kbd(struct wsevsrc *src) 1920 { 1921 if (wsdisplay_console_device == NULL) { 1922 src->me_dispdv = NULL; 1923 return; 1924 } 1925 #if NWSMUX > 0 1926 if (wsmux_attach_sc((struct wsmux_softc *) 1927 wsdisplay_console_device->sc_input, src)) { 1928 src->me_dispdv = NULL; 1929 return; 1930 } 1931 #else 1932 wsdisplay_console_device->sc_input = src; 1933 #endif 1934 src->me_dispdv = &wsdisplay_console_device->sc_dv; 1935 } 1936 #endif /* NWSKBD > 0 */ 1937 1938 /* 1939 * Console interface. 1940 */ 1941 void 1942 wsdisplay_cnputc(dev_t dev, int i) 1943 { 1944 struct wsscreen_internal *dc; 1945 u_char c = i; 1946 1947 if (!wsdisplay_console_initted) 1948 return; 1949 1950 if ((wsdisplay_console_device != NULL) && 1951 (wsdisplay_console_device->sc_scr[0] != NULL) && 1952 (wsdisplay_console_device->sc_scr[0]->scr_flags & SCR_GRAPHICS)) 1953 return; 1954 1955 dc = &wsdisplay_console_conf; 1956 (*dc->wsemul->output)(dc->wsemulcookie, &c, 1, 1); 1957 } 1958 1959 static int 1960 wsdisplay_getc_dummy(dev_t dev) 1961 { 1962 /* panic? */ 1963 return (0); 1964 } 1965 1966 static void 1967 wsdisplay_pollc(dev_t dev, int on) 1968 { 1969 1970 wsdisplay_cons_pollmode = on; 1971 1972 /* notify to fb drivers */ 1973 if (wsdisplay_console_device != NULL && 1974 wsdisplay_console_device->sc_accessops->pollc != NULL) 1975 (*wsdisplay_console_device->sc_accessops->pollc) 1976 (wsdisplay_console_device->sc_accesscookie, on); 1977 1978 /* notify to kbd drivers */ 1979 if (wsdisplay_cons_kbd_pollc) 1980 (*wsdisplay_cons_kbd_pollc)(NODEV, on); 1981 } 1982 1983 void 1984 wsdisplay_set_cons_kbd(int (*get)(dev_t), void (*poll)(dev_t, int), 1985 void (*bell)(dev_t, u_int, u_int, u_int)) 1986 { 1987 wsdisplay_cons.cn_getc = get; 1988 wsdisplay_cons.cn_bell = bell; 1989 wsdisplay_cons_kbd_pollc = poll; 1990 } 1991 1992 void 1993 wsdisplay_unset_cons_kbd(void) 1994 { 1995 wsdisplay_cons.cn_getc = wsdisplay_getc_dummy; 1996 wsdisplay_cons.cn_bell = NULL; 1997 wsdisplay_cons_kbd_pollc = 0; 1998 } 1999 2000 /* 2001 * Switch the console display to it's first screen. 2002 */ 2003 void 2004 wsdisplay_switchtoconsole(void) 2005 { 2006 struct wsdisplay_softc *sc; 2007 struct wsscreen *scr; 2008 2009 if (wsdisplay_console_device != NULL) { 2010 sc = wsdisplay_console_device; 2011 if ((scr = sc->sc_scr[0]) == NULL) 2012 return; 2013 (*sc->sc_accessops->show_screen)(sc->sc_accesscookie, 2014 scr->scr_dconf->emulcookie, 2015 0, NULL, NULL); 2016 } 2017 } 2018 2019 /* 2020 * Switch the console at shutdown. 2021 */ 2022 static void 2023 wsdisplay_shutdownhook(void *arg) 2024 { 2025 2026 wsdisplay_switchtoconsole(); 2027 } 2028
Indexes created Sat Oct 25 01:09:55 GMT 2025