wsdisplay.c revision 1.106.4.1
1 /* $NetBSD: wsdisplay.c,v 1.106.4.1 2007/03/12 05:57:49 rmind 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 1.106.4.1 2007/03/12 05:57:49 rmind Exp $"); 35 36 #include "opt_wsdisplay_compat.h" 37 #include "opt_wsmsgattrs.h" 38 #include "opt_compat_netbsd.h" 39 #include "wskbd.h" 40 #include "wsmux.h" 41 #include "wsdisplay.h" 42 43 #include <sys/param.h> 44 #include <sys/conf.h> 45 #include <sys/device.h> 46 #include <sys/ioctl.h> 47 #include <sys/poll.h> 48 #include <sys/kernel.h> 49 #include <sys/proc.h> 50 #include <sys/malloc.h> 51 #include <sys/syslog.h> 52 #include <sys/systm.h> 53 #include <sys/tty.h> 54 #include <sys/signalvar.h> 55 #include <sys/errno.h> 56 #include <sys/fcntl.h> 57 #include <sys/vnode.h> 58 #include <sys/kauth.h> 59 60 #include <dev/wscons/wseventvar.h> 61 #include <dev/wscons/wsmuxvar.h> 62 #include <dev/wscons/wsconsio.h> 63 #include <dev/wscons/wsdisplayvar.h> 64 #include <dev/wscons/wsksymvar.h> 65 #include <dev/wscons/wsksymdef.h> 66 #include <dev/wscons/wsemulvar.h> 67 #include <dev/wscons/wscons_callbacks.h> 68 #include <dev/cons.h> 69 70 struct wsscreen_internal { 71 const struct wsdisplay_emulops *emulops; 72 void *emulcookie; 73 74 const struct wsscreen_descr *scrdata; 75 76 const struct wsemul_ops *wsemul; 77 void *wsemulcookie; 78 }; 79 80 struct wsscreen { 81 struct wsscreen_internal *scr_dconf; 82 83 struct tty *scr_tty; 84 int scr_hold_screen; /* hold tty output */ 85 86 int scr_flags; 87 #define SCR_OPEN 1 /* is it open? */ 88 #define SCR_WAITACTIVE 2 /* someone waiting on activation */ 89 #define SCR_GRAPHICS 4 /* graphics mode, no text (emulation) output */ 90 #define SCR_DUMBFB 8 /* in use as a dumb fb (iff SCR_GRAPHICS) */ 91 const struct wscons_syncops *scr_syncops; 92 void *scr_synccookie; 93 94 #ifdef WSDISPLAY_COMPAT_RAWKBD 95 int scr_rawkbd; 96 #endif 97 98 struct wsdisplay_softc *sc; 99 }; 100 101 struct wsscreen *wsscreen_attach(struct wsdisplay_softc *, int, 102 const char *, 103 const struct wsscreen_descr *, void *, 104 int, int, long); 105 void wsscreen_detach(struct wsscreen *); 106 int wsdisplay_addscreen(struct wsdisplay_softc *, int, const char *, const char *); 107 static void wsdisplay_shutdownhook(void *); 108 static void wsdisplay_addscreen_print(struct wsdisplay_softc *, int, int); 109 static void wsdisplay_closescreen(struct wsdisplay_softc *, struct wsscreen *); 110 int wsdisplay_delscreen(struct wsdisplay_softc *, int, int); 111 112 #define WSDISPLAY_MAXSCREEN 8 113 114 struct wsdisplay_softc { 115 struct device sc_dv; 116 117 const struct wsdisplay_accessops *sc_accessops; 118 void *sc_accesscookie; 119 120 const struct wsscreen_list *sc_scrdata; 121 #ifdef WSDISPLAY_SCROLLSUPPORT 122 struct wsdisplay_scroll_data sc_scroll_values; 123 #endif 124 125 struct wsscreen *sc_scr[WSDISPLAY_MAXSCREEN]; 126 int sc_focusidx; /* available only if sc_focus isn't null */ 127 struct wsscreen *sc_focus; 128 129 struct wseventvar evar; 130 131 int sc_isconsole; 132 133 int sc_flags; 134 #define SC_SWITCHPENDING 1 135 int sc_screenwanted, sc_oldscreen; /* valid with SC_SWITCHPENDING */ 136 137 #if NWSKBD > 0 138 struct wsevsrc *sc_input; 139 #ifdef WSDISPLAY_COMPAT_RAWKBD 140 int sc_rawkbd; 141 #endif 142 #endif /* NWSKBD > 0 */ 143 }; 144 145 #ifdef WSDISPLAY_SCROLLSUPPORT 146 147 struct wsdisplay_scroll_data wsdisplay_default_scroll_values = { 148 WSDISPLAY_SCROLL_DOALL, 149 25, 150 2, 151 }; 152 #endif 153 154 extern struct cfdriver wsdisplay_cd; 155 156 /* Autoconfiguration definitions. */ 157 static int wsdisplay_emul_match(struct device *, struct cfdata *, void *); 158 static void wsdisplay_emul_attach(struct device *, struct device *, void *); 159 static int wsdisplay_noemul_match(struct device *, struct cfdata *, void *); 160 static void wsdisplay_noemul_attach(struct device *, struct device *, void *); 161 162 CFATTACH_DECL(wsdisplay_emul, sizeof (struct wsdisplay_softc), 163 wsdisplay_emul_match, wsdisplay_emul_attach, NULL, NULL); 164 165 CFATTACH_DECL(wsdisplay_noemul, sizeof (struct wsdisplay_softc), 166 wsdisplay_noemul_match, wsdisplay_noemul_attach, NULL, NULL); 167 168 dev_type_open(wsdisplayopen); 169 dev_type_close(wsdisplayclose); 170 dev_type_read(wsdisplayread); 171 dev_type_write(wsdisplaywrite); 172 dev_type_ioctl(wsdisplayioctl); 173 dev_type_stop(wsdisplaystop); 174 dev_type_tty(wsdisplaytty); 175 dev_type_poll(wsdisplaypoll); 176 dev_type_mmap(wsdisplaymmap); 177 dev_type_kqfilter(wsdisplaykqfilter); 178 179 const struct cdevsw wsdisplay_cdevsw = { 180 wsdisplayopen, wsdisplayclose, wsdisplayread, wsdisplaywrite, 181 wsdisplayioctl, wsdisplaystop, wsdisplaytty, wsdisplaypoll, 182 wsdisplaymmap, wsdisplaykqfilter, D_TTY 183 }; 184 185 static void wsdisplaystart(struct tty *); 186 static int wsdisplayparam(struct tty *, struct termios *); 187 188 189 #define WSDISPLAYUNIT(dev) (minor(dev) >> 8) 190 #define WSDISPLAYSCREEN(dev) (minor(dev) & 0xff) 191 #define ISWSDISPLAYSTAT(dev) (WSDISPLAYSCREEN(dev) == 254) 192 #define ISWSDISPLAYCTL(dev) (WSDISPLAYSCREEN(dev) == 255) 193 #define WSDISPLAYMINOR(unit, screen) (((unit) << 8) | (screen)) 194 195 #define WSSCREEN_HAS_EMULATOR(scr) ((scr)->scr_dconf->wsemul != NULL) 196 #define WSSCREEN_HAS_TTY(scr) ((scr)->scr_tty != NULL) 197 198 static void wsdisplay_common_attach(struct wsdisplay_softc *sc, 199 int console, int kbdmux, const struct wsscreen_list *, 200 const struct wsdisplay_accessops *accessops, 201 void *accesscookie); 202 203 #ifdef WSDISPLAY_COMPAT_RAWKBD 204 int wsdisplay_update_rawkbd(struct wsdisplay_softc *, 205 struct wsscreen *); 206 #endif 207 208 static int wsdisplay_console_initted; 209 static int wsdisplay_console_attached; 210 static struct wsdisplay_softc *wsdisplay_console_device; 211 static struct wsscreen_internal wsdisplay_console_conf; 212 213 static int wsdisplay_getc_dummy(dev_t); 214 static void wsdisplay_pollc(dev_t, int); 215 216 static int wsdisplay_cons_pollmode; 217 static void (*wsdisplay_cons_kbd_pollc)(dev_t, int); 218 219 static struct consdev wsdisplay_cons = { 220 NULL, NULL, wsdisplay_getc_dummy, wsdisplay_cnputc, 221 wsdisplay_pollc, NULL, NULL, NULL, NODEV, CN_NORMAL 222 }; 223 224 #ifndef WSDISPLAY_DEFAULTSCREENS 225 # define WSDISPLAY_DEFAULTSCREENS 0 226 #endif 227 int wsdisplay_defaultscreens = WSDISPLAY_DEFAULTSCREENS; 228 229 int wsdisplay_switch1(void *, int, int); 230 int wsdisplay_switch2(void *, int, int); 231 int wsdisplay_switch3(void *, int, int); 232 233 int wsdisplay_clearonclose; 234 235 struct wsscreen * 236 wsscreen_attach(struct wsdisplay_softc *sc, int console, const char *emul, 237 const struct wsscreen_descr *type, void *cookie, int ccol, 238 int crow, long defattr) 239 { 240 struct wsscreen_internal *dconf; 241 struct wsscreen *scr; 242 243 scr = malloc(sizeof(struct wsscreen), M_DEVBUF, M_WAITOK); 244 if (!scr) 245 return (NULL); 246 247 if (console) { 248 dconf = &wsdisplay_console_conf; 249 /* 250 * If there's an emulation, tell it about the callback argument. 251 * The other stuff is already there. 252 */ 253 if (dconf->wsemul != NULL) 254 (*dconf->wsemul->attach)(1, 0, 0, 0, 0, scr, 0); 255 } else { /* not console */ 256 dconf = malloc(sizeof(struct wsscreen_internal), 257 M_DEVBUF, M_NOWAIT); 258 dconf->emulops = type->textops; 259 dconf->emulcookie = cookie; 260 if (dconf->emulops) { 261 dconf->wsemul = wsemul_pick(emul); 262 if (dconf->wsemul == NULL) { 263 free(dconf, M_DEVBUF); 264 free(scr, M_DEVBUF); 265 return (NULL); 266 } 267 dconf->wsemulcookie = 268 (*dconf->wsemul->attach)(0, type, cookie, 269 ccol, crow, scr, defattr); 270 } else 271 dconf->wsemul = NULL; 272 dconf->scrdata = type; 273 } 274 275 scr->scr_dconf = dconf; 276 277 scr->scr_tty = ttymalloc(); 278 tty_attach(scr->scr_tty); 279 scr->scr_hold_screen = 0; 280 if (WSSCREEN_HAS_EMULATOR(scr)) 281 scr->scr_flags = 0; 282 else 283 scr->scr_flags = SCR_GRAPHICS; 284 285 scr->scr_syncops = 0; 286 scr->sc = sc; 287 #ifdef WSDISPLAY_COMPAT_RAWKBD 288 scr->scr_rawkbd = 0; 289 #endif 290 return (scr); 291 } 292 293 void 294 wsscreen_detach(struct wsscreen *scr) 295 { 296 u_int ccol, crow; /* XXX */ 297 298 if (WSSCREEN_HAS_TTY(scr)) { 299 tty_detach(scr->scr_tty); 300 ttyfree(scr->scr_tty); 301 } 302 if (WSSCREEN_HAS_EMULATOR(scr)) 303 (*scr->scr_dconf->wsemul->detach)(scr->scr_dconf->wsemulcookie, 304 &ccol, &crow); 305 free(scr->scr_dconf, M_DEVBUF); 306 free(scr, M_DEVBUF); 307 } 308 309 const struct wsscreen_descr * 310 wsdisplay_screentype_pick(const struct wsscreen_list *scrdata, const char *name) 311 { 312 int i; 313 const struct wsscreen_descr *scr; 314 315 KASSERT(scrdata->nscreens > 0); 316 317 if (name == NULL) 318 return (scrdata->screens[0]); 319 320 for (i = 0; i < scrdata->nscreens; i++) { 321 scr = scrdata->screens[i]; 322 if (!strcmp(name, scr->name)) 323 return (scr); 324 } 325 326 return (0); 327 } 328 329 /* 330 * print info about attached screen 331 */ 332 static void 333 wsdisplay_addscreen_print(struct wsdisplay_softc *sc, int idx, int count) 334 { 335 printf("%s: screen %d", sc->sc_dv.dv_xname, idx); 336 if (count > 1) 337 printf("-%d", idx + (count-1)); 338 printf(" added (%s", sc->sc_scr[idx]->scr_dconf->scrdata->name); 339 if (WSSCREEN_HAS_EMULATOR(sc->sc_scr[idx])) { 340 printf(", %s emulation", 341 sc->sc_scr[idx]->scr_dconf->wsemul->name); 342 } 343 printf(")\n"); 344 } 345 346 int 347 wsdisplay_addscreen(struct wsdisplay_softc *sc, int idx, 348 const char *screentype, const char *emul) 349 { 350 const struct wsscreen_descr *scrdesc; 351 int error; 352 void *cookie; 353 int ccol, crow; 354 long defattr; 355 struct wsscreen *scr; 356 int s; 357 358 if (idx < 0 || idx >= WSDISPLAY_MAXSCREEN) 359 return (EINVAL); 360 if (sc->sc_scr[idx] != NULL) 361 return (EBUSY); 362 363 scrdesc = wsdisplay_screentype_pick(sc->sc_scrdata, screentype); 364 if (!scrdesc) 365 return (ENXIO); 366 error = (*sc->sc_accessops->alloc_screen)(sc->sc_accesscookie, 367 scrdesc, &cookie, &ccol, &crow, &defattr); 368 if (error) 369 return (error); 370 371 scr = wsscreen_attach(sc, 0, emul, scrdesc, 372 cookie, ccol, crow, defattr); 373 if (scr == NULL) { 374 (*sc->sc_accessops->free_screen)(sc->sc_accesscookie, 375 cookie); 376 return (ENXIO); 377 } 378 379 sc->sc_scr[idx] = scr; 380 381 /* if no screen has focus yet, activate the first we get */ 382 s = spltty(); 383 if (!sc->sc_focus) { 384 (*sc->sc_accessops->show_screen)(sc->sc_accesscookie, 385 scr->scr_dconf->emulcookie, 386 0, 0, 0); 387 sc->sc_focusidx = idx; 388 sc->sc_focus = scr; 389 } 390 splx(s); 391 return (0); 392 } 393 394 static void 395 wsdisplay_closescreen(struct wsdisplay_softc *sc, struct wsscreen *scr) 396 { 397 int maj, mn, idx; 398 399 /* hangup */ 400 if (WSSCREEN_HAS_TTY(scr)) { 401 struct tty *tp = scr->scr_tty; 402 (*tp->t_linesw->l_modem)(tp, 0); 403 } 404 405 /* locate the major number */ 406 maj = cdevsw_lookup_major(&wsdisplay_cdevsw); 407 /* locate the screen index */ 408 for (idx = 0; idx < WSDISPLAY_MAXSCREEN; idx++) 409 if (scr == sc->sc_scr[idx]) 410 break; 411 #ifdef DIAGNOSTIC 412 if (idx == WSDISPLAY_MAXSCREEN) 413 panic("wsdisplay_forceclose: bad screen"); 414 #endif 415 416 /* nuke the vnodes */ 417 mn = WSDISPLAYMINOR(device_unit(&sc->sc_dv), idx); 418 vdevgone(maj, mn, mn, VCHR); 419 } 420 421 #ifdef WSDISPLAY_SCROLLSUPPORT 422 void 423 wsdisplay_scroll(void *arg, int op) 424 { 425 struct wsdisplay_softc *sc = arg; 426 struct wsscreen *scr; 427 int lines; 428 429 scr = sc->sc_focus; 430 431 if (!scr) 432 return; 433 434 if (op == WSDISPLAY_SCROLL_RESET) 435 lines = 0; 436 else { 437 lines = (op & WSDISPLAY_SCROLL_LOW) ? 438 sc->sc_scroll_values.slowlines : 439 sc->sc_scroll_values.fastlines; 440 if (op & WSDISPLAY_SCROLL_BACKWARD) 441 lines = -(lines); 442 } 443 444 if (sc->sc_accessops->scroll) { 445 (*sc->sc_accessops->scroll)(sc->sc_accesscookie, 446 sc->sc_focus->scr_dconf->emulcookie, lines); 447 } 448 } 449 #endif 450 451 int 452 wsdisplay_delscreen(struct wsdisplay_softc *sc, int idx, int flags) 453 { 454 struct wsscreen *scr; 455 int s; 456 void *cookie; 457 458 if (idx < 0 || idx >= WSDISPLAY_MAXSCREEN) 459 return (EINVAL); 460 if ((scr = sc->sc_scr[idx]) == NULL) 461 return (ENXIO); 462 463 if (scr->scr_dconf == &wsdisplay_console_conf || 464 scr->scr_syncops || 465 ((scr->scr_flags & SCR_OPEN) && !(flags & WSDISPLAY_DELSCR_FORCE))) 466 return(EBUSY); 467 468 wsdisplay_closescreen(sc, scr); 469 470 /* 471 * delete pointers, so neither device entries 472 * nor keyboard input can reference it anymore 473 */ 474 s = spltty(); 475 if (sc->sc_focus == scr) { 476 sc->sc_focus = 0; 477 #ifdef WSDISPLAY_COMPAT_RAWKBD 478 wsdisplay_update_rawkbd(sc, 0); 479 #endif 480 } 481 sc->sc_scr[idx] = 0; 482 splx(s); 483 484 /* 485 * Wake up processes waiting for the screen to 486 * be activated. Sleepers must check whether 487 * the screen still exists. 488 */ 489 if (scr->scr_flags & SCR_WAITACTIVE) 490 wakeup(scr); 491 492 /* save a reference to the graphics screen */ 493 cookie = scr->scr_dconf->emulcookie; 494 495 wsscreen_detach(scr); 496 497 (*sc->sc_accessops->free_screen)(sc->sc_accesscookie, 498 cookie); 499 500 printf("%s: screen %d deleted\n", sc->sc_dv.dv_xname, idx); 501 return (0); 502 } 503 504 /* 505 * Autoconfiguration functions. 506 */ 507 int 508 wsdisplay_emul_match(struct device *parent, struct cfdata *match, 509 void *aux) 510 { 511 struct wsemuldisplaydev_attach_args *ap = aux; 512 513 if (match->wsemuldisplaydevcf_console != 514 WSEMULDISPLAYDEVCF_CONSOLE_UNK) { 515 /* 516 * If console-ness of device specified, either match 517 * exactly (at high priority), or fail. 518 */ 519 if (match->wsemuldisplaydevcf_console != 0 && 520 ap->console != 0) 521 return (10); 522 else 523 return (0); 524 } 525 526 /* If console-ness unspecified, it wins. */ 527 return (1); 528 } 529 530 void 531 wsdisplay_emul_attach(struct device *parent, struct device *self, 532 void *aux) 533 { 534 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)self; 535 struct wsemuldisplaydev_attach_args *ap = aux; 536 537 /* Don't allow more than one console to attach */ 538 if (wsdisplay_console_attached && ap->console) 539 ap->console = 0; 540 541 wsdisplay_common_attach(sc, ap->console, 542 device_cfdata(&sc->sc_dv)->wsemuldisplaydevcf_kbdmux, ap->scrdata, 543 ap->accessops, ap->accesscookie); 544 545 if (ap->console) { 546 int maj; 547 548 /* locate the major number */ 549 maj = cdevsw_lookup_major(&wsdisplay_cdevsw); 550 551 cn_tab->cn_dev = makedev(maj, WSDISPLAYMINOR(device_unit(self), 552 0)); 553 } 554 } 555 556 /* Print function (for parent devices). */ 557 int 558 wsemuldisplaydevprint(void *aux, const char *pnp) 559 { 560 #if 0 /* -Wunused */ 561 struct wsemuldisplaydev_attach_args *ap = aux; 562 #endif 563 564 if (pnp) 565 aprint_normal("wsdisplay at %s", pnp); 566 #if 0 /* don't bother; it's ugly */ 567 aprint_normal(" console %d", ap->console); 568 #endif 569 570 return (UNCONF); 571 } 572 573 int 574 wsdisplay_noemul_match(struct device *parent, 575 struct cfdata *match, void *aux) 576 { 577 #if 0 /* -Wunused */ 578 struct wsdisplaydev_attach_args *ap = aux; 579 #endif 580 581 /* Always match. */ 582 return (1); 583 } 584 585 void 586 wsdisplay_noemul_attach(struct device *parent, struct device *self, 587 void *aux) 588 { 589 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)self; 590 struct wsdisplaydev_attach_args *ap = aux; 591 592 wsdisplay_common_attach(sc, 0, 593 device_cfdata(&sc->sc_dv)->wsemuldisplaydevcf_kbdmux, NULL, 594 ap->accessops, ap->accesscookie); 595 } 596 597 /* Print function (for parent devices). */ 598 int 599 wsdisplaydevprint(void *aux, const char *pnp) 600 { 601 #if 0 /* -Wunused */ 602 struct wsdisplaydev_attach_args *ap = aux; 603 #endif 604 605 if (pnp) 606 aprint_normal("wsdisplay at %s", pnp); 607 608 return (UNCONF); 609 } 610 611 static void 612 wsdisplay_common_attach(struct wsdisplay_softc *sc, int console, int kbdmux, 613 const struct wsscreen_list *scrdata, 614 const struct wsdisplay_accessops *accessops, 615 void *accesscookie) 616 { 617 static int hookset; 618 int i, start=0; 619 #if NWSKBD > 0 620 struct wsevsrc *kme; 621 #if NWSMUX > 0 622 struct wsmux_softc *mux; 623 624 if (kbdmux >= 0) 625 mux = wsmux_getmux(kbdmux); 626 else 627 mux = wsmux_create("dmux", device_unit(&sc->sc_dv)); 628 /* XXX panic()ing isn't nice, but attach cannot fail */ 629 if (mux == NULL) 630 panic("wsdisplay_common_attach: no memory"); 631 sc->sc_input = &mux->sc_base; 632 mux->sc_base.me_dispdv = &sc->sc_dv; 633 printf(" kbdmux %d", kbdmux); 634 #else 635 if (kbdmux >= 0) 636 printf(" (kbdmux ignored)"); 637 #endif 638 #endif 639 640 sc->sc_isconsole = console; 641 642 if (console) { 643 KASSERT(wsdisplay_console_initted); 644 KASSERT(wsdisplay_console_device == NULL); 645 646 sc->sc_scr[0] = wsscreen_attach(sc, 1, 0, 0, 0, 0, 0, 0); 647 wsdisplay_console_device = sc; 648 649 printf(": console (%s, %s emulation)", 650 wsdisplay_console_conf.scrdata->name, 651 wsdisplay_console_conf.wsemul->name); 652 653 #if NWSKBD > 0 654 kme = wskbd_set_console_display(&sc->sc_dv, sc->sc_input); 655 if (kme != NULL) 656 printf(", using %s", kme->me_dv.dv_xname); 657 #if NWSMUX == 0 658 sc->sc_input = kme; 659 #endif 660 #endif 661 662 sc->sc_focusidx = 0; 663 sc->sc_focus = sc->sc_scr[0]; 664 start = 1; 665 666 wsdisplay_console_attached = 1; 667 } 668 printf("\n"); 669 670 #if NWSKBD > 0 && NWSMUX > 0 671 wsmux_set_display(mux, &sc->sc_dv); 672 #endif 673 674 sc->sc_accessops = accessops; 675 sc->sc_accesscookie = accesscookie; 676 sc->sc_scrdata = scrdata; 677 678 #ifdef WSDISPLAY_SCROLLSUPPORT 679 sc->sc_scroll_values = wsdisplay_default_scroll_values; 680 #endif 681 682 /* 683 * Set up a number of virtual screens if wanted. The 684 * WSDISPLAYIO_ADDSCREEN ioctl is more flexible, so this code 685 * is for special cases like installation kernels. 686 */ 687 for (i = start; i < wsdisplay_defaultscreens; i++) { 688 if (wsdisplay_addscreen(sc, i, 0, 0)) 689 break; 690 } 691 692 if (i > start) 693 wsdisplay_addscreen_print(sc, start, i-start); 694 695 if (hookset == 0) 696 shutdownhook_establish(wsdisplay_shutdownhook, NULL); 697 hookset = 1; 698 } 699 700 void 701 wsdisplay_cnattach(const struct wsscreen_descr *type, void *cookie, 702 int ccol, int crow, long defattr) 703 { 704 const struct wsemul_ops *wsemul; 705 706 KASSERT(wsdisplay_console_initted < 2); 707 KASSERT(type->nrows > 0); 708 KASSERT(type->ncols > 0); 709 KASSERT(crow < type->nrows); 710 KASSERT(ccol < type->ncols); 711 712 wsdisplay_console_conf.emulops = type->textops; 713 wsdisplay_console_conf.emulcookie = cookie; 714 wsdisplay_console_conf.scrdata = type; 715 716 wsemul = wsemul_pick(0); /* default */ 717 wsdisplay_console_conf.wsemul = wsemul; 718 wsdisplay_console_conf.wsemulcookie = (*wsemul->cnattach)(type, cookie, 719 ccol, crow, 720 defattr); 721 722 cn_tab = &wsdisplay_cons; 723 wsdisplay_console_initted = 2; 724 } 725 726 void 727 wsdisplay_preattach(const struct wsscreen_descr *type, void *cookie, 728 int ccol, int crow, long defattr) 729 { 730 const struct wsemul_ops *wsemul; 731 732 KASSERT(!wsdisplay_console_initted); 733 KASSERT(type->nrows > 0); 734 KASSERT(type->ncols > 0); 735 KASSERT(crow < type->nrows); 736 KASSERT(ccol < type->ncols); 737 738 wsdisplay_console_conf.emulops = type->textops; 739 wsdisplay_console_conf.emulcookie = cookie; 740 wsdisplay_console_conf.scrdata = type; 741 742 wsemul = wsemul_pick(0); /* default */ 743 wsdisplay_console_conf.wsemul = wsemul; 744 wsdisplay_console_conf.wsemulcookie = (*wsemul->cnattach)(type, cookie, 745 ccol, crow, 746 defattr); 747 748 cn_tab = &wsdisplay_cons; 749 wsdisplay_console_initted = 1; 750 } 751 752 /* 753 * Tty and cdevsw functions. 754 */ 755 int 756 wsdisplayopen(dev_t dev, int flag, int mode, struct lwp *l) 757 { 758 struct wsdisplay_softc *sc; 759 struct tty *tp; 760 int newopen, error; 761 struct wsscreen *scr; 762 763 sc = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 764 if (sc == NULL) /* make sure it was attached */ 765 return (ENXIO); 766 767 if (ISWSDISPLAYSTAT(dev)) { 768 wsevent_init(&sc->evar, l->l_proc); 769 return (0); 770 } 771 772 if (ISWSDISPLAYCTL(dev)) 773 return (0); 774 775 if (WSDISPLAYSCREEN(dev) >= WSDISPLAY_MAXSCREEN) 776 return (ENXIO); 777 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 778 return (ENXIO); 779 780 if (WSSCREEN_HAS_TTY(scr)) { 781 tp = scr->scr_tty; 782 tp->t_oproc = wsdisplaystart; 783 tp->t_param = wsdisplayparam; 784 tp->t_dev = dev; 785 newopen = (tp->t_state & TS_ISOPEN) == 0; 786 787 if (kauth_authorize_device_tty(l->l_cred, 788 KAUTH_DEVICE_TTY_OPEN, tp)) 789 return (EBUSY); 790 791 if (newopen) { 792 ttychars(tp); 793 tp->t_iflag = TTYDEF_IFLAG; 794 tp->t_oflag = TTYDEF_OFLAG; 795 tp->t_cflag = TTYDEF_CFLAG; 796 tp->t_lflag = TTYDEF_LFLAG; 797 tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED; 798 wsdisplayparam(tp, &tp->t_termios); 799 ttsetwater(tp); 800 } 801 tp->t_state |= TS_CARR_ON; 802 803 error = ((*tp->t_linesw->l_open)(dev, tp)); 804 if (error) 805 return (error); 806 807 if (newopen && WSSCREEN_HAS_EMULATOR(scr)) { 808 /* set window sizes as appropriate, and reset 809 the emulation */ 810 tp->t_winsize.ws_row = scr->scr_dconf->scrdata->nrows; 811 tp->t_winsize.ws_col = scr->scr_dconf->scrdata->ncols; 812 813 /* wsdisplay_set_emulation() */ 814 } 815 } 816 817 scr->scr_flags |= SCR_OPEN; 818 return (0); 819 } 820 821 int 822 wsdisplayclose(dev_t dev, int flag, int mode, struct lwp *l) 823 { 824 struct wsdisplay_softc *sc; 825 struct tty *tp; 826 struct wsscreen *scr; 827 828 sc = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 829 830 if (ISWSDISPLAYSTAT(dev)) { 831 wsevent_fini(&sc->evar); 832 return (0); 833 } 834 835 if (ISWSDISPLAYCTL(dev)) 836 return (0); 837 838 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 839 return (0); 840 841 if (WSSCREEN_HAS_TTY(scr)) { 842 if (scr->scr_hold_screen) { 843 int s; 844 845 /* XXX RESET KEYBOARD LEDS, etc. */ 846 s = spltty(); /* avoid conflict with keyboard */ 847 wsdisplay_kbdholdscreen((struct device *)sc, 0); 848 splx(s); 849 } 850 tp = scr->scr_tty; 851 (*tp->t_linesw->l_close)(tp, flag); 852 ttyclose(tp); 853 } 854 855 if (scr->scr_syncops) 856 (*scr->scr_syncops->destroy)(scr->scr_synccookie); 857 858 if (WSSCREEN_HAS_EMULATOR(scr)) { 859 scr->scr_flags &= ~SCR_GRAPHICS; 860 (*scr->scr_dconf->wsemul->reset)(scr->scr_dconf->wsemulcookie, 861 WSEMUL_RESET); 862 if (wsdisplay_clearonclose) 863 (*scr->scr_dconf->wsemul->reset) 864 (scr->scr_dconf->wsemulcookie, 865 WSEMUL_CLEARSCREEN); 866 } 867 868 #ifdef WSDISPLAY_COMPAT_RAWKBD 869 if (scr->scr_rawkbd) { 870 int kbmode = WSKBD_TRANSLATED; 871 (void)wsdisplay_internal_ioctl(sc, scr, WSKBDIO_SETMODE, 872 (void *)&kbmode, 0, l); 873 } 874 #endif 875 876 scr->scr_flags &= ~SCR_OPEN; 877 878 return (0); 879 } 880 881 int 882 wsdisplayread(dev_t dev, struct uio *uio, int flag) 883 { 884 struct wsdisplay_softc *sc; 885 struct tty *tp; 886 struct wsscreen *scr; 887 int error; 888 889 sc = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 890 891 if (ISWSDISPLAYSTAT(dev)) { 892 error = wsevent_read(&sc->evar, uio, flag); 893 return (error); 894 } 895 896 if (ISWSDISPLAYCTL(dev)) 897 return (0); 898 899 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 900 return (ENXIO); 901 902 if (!WSSCREEN_HAS_TTY(scr)) 903 return (ENODEV); 904 905 tp = scr->scr_tty; 906 return ((*tp->t_linesw->l_read)(tp, uio, flag)); 907 } 908 909 int 910 wsdisplaywrite(dev_t dev, struct uio *uio, int flag) 911 { 912 struct wsdisplay_softc *sc; 913 struct tty *tp; 914 struct wsscreen *scr; 915 916 sc = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 917 918 if (ISWSDISPLAYSTAT(dev)) { 919 return (0); 920 } 921 922 if (ISWSDISPLAYCTL(dev)) 923 return (0); 924 925 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 926 return (ENXIO); 927 928 if (!WSSCREEN_HAS_TTY(scr)) 929 return (ENODEV); 930 931 tp = scr->scr_tty; 932 return ((*tp->t_linesw->l_write)(tp, uio, flag)); 933 } 934 935 int 936 wsdisplaypoll(dev_t dev, int events, struct lwp *l) 937 { 938 struct wsdisplay_softc *sc; 939 struct tty *tp; 940 struct wsscreen *scr; 941 942 sc = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 943 944 if (ISWSDISPLAYSTAT(dev)) 945 return (wsevent_poll(&sc->evar, events, l)); 946 947 if (ISWSDISPLAYCTL(dev)) 948 return (0); 949 950 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 951 return (POLLHUP); 952 953 if (!WSSCREEN_HAS_TTY(scr)) 954 return (POLLERR); 955 956 tp = scr->scr_tty; 957 return ((*tp->t_linesw->l_poll)(tp, events, l)); 958 } 959 960 int 961 wsdisplaykqfilter(dev, kn) 962 dev_t dev; 963 struct knote *kn; 964 { 965 struct wsdisplay_softc *sc = 966 device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 967 struct wsscreen *scr; 968 969 if (ISWSDISPLAYCTL(dev)) 970 return (1); 971 972 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 973 return (1); 974 975 976 if (WSSCREEN_HAS_TTY(scr)) 977 return (ttykqfilter(dev, kn)); 978 else 979 return (1); 980 } 981 982 struct tty * 983 wsdisplaytty(dev_t dev) 984 { 985 struct wsdisplay_softc *sc; 986 struct wsscreen *scr; 987 988 sc = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 989 990 if (ISWSDISPLAYSTAT(dev)) 991 panic("wsdisplaytty() on status device"); 992 993 if (ISWSDISPLAYCTL(dev)) 994 panic("wsdisplaytty() on ctl device"); 995 996 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 997 return NULL; 998 999 return (scr->scr_tty); 1000 } 1001 1002 int 1003 wsdisplayioctl(dev_t dev, u_long cmd, void *data, int flag, struct lwp *l) 1004 { 1005 struct wsdisplay_softc *sc; 1006 struct tty *tp; 1007 int error; 1008 struct wsscreen *scr; 1009 1010 sc = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 1011 1012 #ifdef WSDISPLAY_COMPAT_USL 1013 error = wsdisplay_usl_ioctl1(sc, cmd, data, flag, l); 1014 if (error != EPASSTHROUGH) 1015 return (error); 1016 #endif 1017 1018 if (ISWSDISPLAYSTAT(dev)) 1019 return (wsdisplay_stat_ioctl(sc, cmd, data, flag, l)); 1020 1021 if (ISWSDISPLAYCTL(dev)) 1022 return (wsdisplay_cfg_ioctl(sc, cmd, data, flag, l)); 1023 1024 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 1025 return (ENXIO); 1026 1027 if (WSSCREEN_HAS_TTY(scr)) { 1028 tp = scr->scr_tty; 1029 1030 /* printf("disc\n"); */ 1031 /* do the line discipline ioctls first */ 1032 error = (*tp->t_linesw->l_ioctl)(tp, cmd, data, flag, l); 1033 if (error != EPASSTHROUGH) 1034 return (error); 1035 1036 /* printf("tty\n"); */ 1037 /* then the tty ioctls */ 1038 error = ttioctl(tp, cmd, data, flag, l); 1039 if (error != EPASSTHROUGH) 1040 return (error); 1041 } 1042 1043 #ifdef WSDISPLAY_COMPAT_USL 1044 error = wsdisplay_usl_ioctl2(sc, scr, cmd, data, flag, l); 1045 if (error != EPASSTHROUGH) 1046 return (error); 1047 #endif 1048 1049 return (wsdisplay_internal_ioctl(sc, scr, cmd, data, flag, l)); 1050 } 1051 1052 int 1053 wsdisplay_param(struct device *dev, u_long cmd, struct wsdisplay_param *dp) 1054 { 1055 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)dev; 1056 return ((*sc->sc_accessops->ioctl)(sc->sc_accesscookie, 1057 sc->sc_focus->scr_dconf->emulcookie, 1058 cmd, (void *)dp, 0, NULL)); 1059 } 1060 1061 int 1062 wsdisplay_internal_ioctl(struct wsdisplay_softc *sc, struct wsscreen *scr, 1063 u_long cmd, void *data, int flag, struct lwp *l) 1064 { 1065 int error; 1066 char namebuf[16]; 1067 struct wsdisplay_font fd; 1068 #ifdef WSDISPLAY_SCROLLSUPPORT 1069 struct wsdisplay_scroll_data *ksdp, *usdp; 1070 #endif 1071 1072 #if NWSKBD > 0 1073 struct wsevsrc *inp; 1074 1075 #ifdef WSDISPLAY_COMPAT_RAWKBD 1076 switch (cmd) { 1077 case WSKBDIO_SETMODE: 1078 scr->scr_rawkbd = (*(int *)data == WSKBD_RAW); 1079 return (wsdisplay_update_rawkbd(sc, scr)); 1080 case WSKBDIO_GETMODE: 1081 *(int *)data = (scr->scr_rawkbd ? 1082 WSKBD_RAW : WSKBD_TRANSLATED); 1083 return (0); 1084 } 1085 #endif 1086 inp = sc->sc_input; 1087 if (inp == NULL) 1088 return (ENXIO); 1089 error = wsevsrc_display_ioctl(inp, cmd, data, flag, l); 1090 if (error != EPASSTHROUGH) 1091 return (error); 1092 #endif /* NWSKBD > 0 */ 1093 1094 switch (cmd) { 1095 case WSDISPLAYIO_GMODE: 1096 if (scr->scr_flags & SCR_GRAPHICS) { 1097 if (scr->scr_flags & SCR_DUMBFB) 1098 *(u_int *)data = WSDISPLAYIO_MODE_DUMBFB; 1099 else 1100 *(u_int *)data = WSDISPLAYIO_MODE_MAPPED; 1101 } else 1102 *(u_int *)data = WSDISPLAYIO_MODE_EMUL; 1103 return (0); 1104 1105 case WSDISPLAYIO_SMODE: 1106 #define d (*(int *)data) 1107 if (d != WSDISPLAYIO_MODE_EMUL && 1108 d != WSDISPLAYIO_MODE_MAPPED && 1109 d != WSDISPLAYIO_MODE_DUMBFB) 1110 return (EINVAL); 1111 1112 if (WSSCREEN_HAS_EMULATOR(scr)) { 1113 scr->scr_flags &= ~SCR_GRAPHICS; 1114 if (d == WSDISPLAYIO_MODE_MAPPED || 1115 d == WSDISPLAYIO_MODE_DUMBFB) 1116 scr->scr_flags |= SCR_GRAPHICS | 1117 ((d == WSDISPLAYIO_MODE_DUMBFB) ? SCR_DUMBFB : 0); 1118 } else if (d == WSDISPLAYIO_MODE_EMUL) 1119 return (EINVAL); 1120 1121 (void)(*sc->sc_accessops->ioctl)(sc->sc_accesscookie, 1122 scr->scr_dconf->emulcookie, cmd, data, flag, l); 1123 1124 return (0); 1125 #undef d 1126 1127 #ifdef WSDISPLAY_SCROLLSUPPORT 1128 #define SETSCROLLLINES(dstp, srcp, dfltp) \ 1129 do { \ 1130 (dstp)->fastlines = ((srcp)->which & \ 1131 WSDISPLAY_SCROLL_DOFASTLINES) ? \ 1132 (srcp)->fastlines : (dfltp)->fastlines; \ 1133 (dstp)->slowlines = ((srcp)->which & \ 1134 WSDISPLAY_SCROLL_DOSLOWLINES) ? \ 1135 (srcp)->slowlines : (dfltp)->slowlines; \ 1136 (dstp)->which = WSDISPLAY_SCROLL_DOALL; \ 1137 } while (0) 1138 1139 1140 case WSDISPLAYIO_DSSCROLL: 1141 usdp = (struct wsdisplay_scroll_data *)data; 1142 ksdp = &sc->sc_scroll_values; 1143 SETSCROLLLINES(ksdp, usdp, ksdp); 1144 return (0); 1145 1146 case WSDISPLAYIO_DGSCROLL: 1147 usdp = (struct wsdisplay_scroll_data *)data; 1148 ksdp = &sc->sc_scroll_values; 1149 SETSCROLLLINES(usdp, ksdp, ksdp); 1150 return (0); 1151 #else 1152 case WSDISPLAYIO_DSSCROLL: 1153 case WSDISPLAYIO_DGSCROLL: 1154 return ENODEV; 1155 #endif 1156 1157 case WSDISPLAYIO_SFONT: 1158 #define d ((struct wsdisplay_usefontdata *)data) 1159 if (!sc->sc_accessops->load_font) 1160 return (EINVAL); 1161 if (d->name) { 1162 error = copyinstr(d->name, namebuf, sizeof(namebuf), 0); 1163 if (error) 1164 return (error); 1165 fd.name = namebuf; 1166 } else 1167 fd.name = 0; 1168 fd.data = 0; 1169 error = (*sc->sc_accessops->load_font)(sc->sc_accesscookie, 1170 scr->scr_dconf->emulcookie, &fd); 1171 if (!error && WSSCREEN_HAS_EMULATOR(scr)) 1172 (*scr->scr_dconf->wsemul->reset) 1173 (scr->scr_dconf->wsemulcookie, WSEMUL_SYNCFONT); 1174 return (error); 1175 #undef d 1176 1177 #ifdef WSDISPLAY_CUSTOM_OUTPUT 1178 case WSDISPLAYIO_GMSGATTRS: 1179 #define d ((struct wsdisplay_msgattrs *)data) 1180 (*scr->scr_dconf->wsemul->getmsgattrs) 1181 (scr->scr_dconf->wsemulcookie, d); 1182 return (0); 1183 #undef d 1184 1185 case WSDISPLAYIO_SMSGATTRS: { 1186 #define d ((struct wsdisplay_msgattrs *)data) 1187 int i; 1188 for (i = 0; i < WSDISPLAY_MAXSCREEN; i++) 1189 if (sc->sc_scr[i] != NULL) 1190 (*sc->sc_scr[i]->scr_dconf->wsemul->setmsgattrs) 1191 (sc->sc_scr[i]->scr_dconf->wsemulcookie, 1192 sc->sc_scr[i]->scr_dconf->scrdata, 1193 d); 1194 } 1195 return (0); 1196 #undef d 1197 #else 1198 case WSDISPLAYIO_GMSGATTRS: 1199 case WSDISPLAYIO_SMSGATTRS: 1200 return (ENODEV); 1201 #endif 1202 } 1203 1204 /* check ioctls for display */ 1205 return ((*sc->sc_accessops->ioctl)(sc->sc_accesscookie, 1206 scr->scr_dconf->emulcookie, cmd, data, flag, l)); 1207 } 1208 1209 int 1210 wsdisplay_stat_ioctl(struct wsdisplay_softc *sc, u_long cmd, void *data, 1211 int flag, struct lwp *l) 1212 { 1213 switch (cmd) { 1214 case WSDISPLAYIO_GETACTIVESCREEN: 1215 *(int*)data = wsdisplay_getactivescreen(sc); 1216 return (0); 1217 } 1218 1219 return (EPASSTHROUGH); 1220 } 1221 1222 int 1223 wsdisplay_cfg_ioctl(struct wsdisplay_softc *sc, u_long cmd, void *data, 1224 int flag, struct lwp *l) 1225 { 1226 int error; 1227 char *type, typebuf[16], *emul, emulbuf[16]; 1228 void *tbuf; 1229 u_int fontsz; 1230 #if defined(COMPAT_14) && NWSKBD > 0 1231 struct wsmux_device wsmuxdata; 1232 #endif 1233 #if NWSKBD > 0 1234 struct wsevsrc *inp; 1235 #endif 1236 1237 switch (cmd) { 1238 case WSDISPLAYIO_ADDSCREEN: 1239 #define d ((struct wsdisplay_addscreendata *)data) 1240 if (d->screentype) { 1241 error = copyinstr(d->screentype, typebuf, 1242 sizeof(typebuf), 0); 1243 if (error) 1244 return (error); 1245 type = typebuf; 1246 } else 1247 type = 0; 1248 if (d->emul) { 1249 error = copyinstr(d->emul, emulbuf, sizeof(emulbuf),0); 1250 if (error) 1251 return (error); 1252 emul = emulbuf; 1253 } else 1254 emul = 0; 1255 1256 if ((error = wsdisplay_addscreen(sc, d->idx, type, emul)) == 0) 1257 wsdisplay_addscreen_print(sc, d->idx, 0); 1258 return (error); 1259 #undef d 1260 case WSDISPLAYIO_DELSCREEN: 1261 #define d ((struct wsdisplay_delscreendata *)data) 1262 return (wsdisplay_delscreen(sc, d->idx, d->flags)); 1263 #undef d 1264 case WSDISPLAYIO_LDFONT: 1265 #define d ((struct wsdisplay_font *)data) 1266 if (!sc->sc_accessops->load_font) 1267 return (EINVAL); 1268 if (d->name) { 1269 error = copyinstr(d->name, typebuf, sizeof(typebuf), 0); 1270 if (error) 1271 return (error); 1272 d->name = typebuf; 1273 } else 1274 d->name = "loaded"; /* ??? */ 1275 fontsz = d->fontheight * d->stride * d->numchars; 1276 if (fontsz > WSDISPLAY_MAXFONTSZ) 1277 return (EINVAL); 1278 1279 tbuf = malloc(fontsz, M_DEVBUF, M_WAITOK); 1280 error = copyin(d->data, tbuf, fontsz); 1281 if (error) { 1282 free(tbuf, M_DEVBUF); 1283 return (error); 1284 } 1285 d->data = tbuf; 1286 error = 1287 (*sc->sc_accessops->load_font)(sc->sc_accesscookie, 0, d); 1288 free(tbuf, M_DEVBUF); 1289 #undef d 1290 return (error); 1291 1292 #if NWSKBD > 0 1293 #ifdef COMPAT_14 1294 case _O_WSDISPLAYIO_SETKEYBOARD: 1295 #define d ((struct wsdisplay_kbddata *)data) 1296 inp = sc->sc_input; 1297 if (inp == NULL) 1298 return (ENXIO); 1299 switch (d->op) { 1300 case _O_WSDISPLAY_KBD_ADD: 1301 if (d->idx == -1) { 1302 d->idx = wskbd_pickfree(); 1303 if (d->idx == -1) 1304 return (ENXIO); 1305 } 1306 wsmuxdata.type = WSMUX_KBD; 1307 wsmuxdata.idx = d->idx; 1308 return (wsevsrc_ioctl(inp, WSMUX_ADD_DEVICE, 1309 &wsmuxdata, flag, l)); 1310 case _O_WSDISPLAY_KBD_DEL: 1311 wsmuxdata.type = WSMUX_KBD; 1312 wsmuxdata.idx = d->idx; 1313 return (wsevsrc_ioctl(inp, WSMUX_REMOVE_DEVICE, 1314 &wsmuxdata, flag, l)); 1315 default: 1316 return (EINVAL); 1317 } 1318 #undef d 1319 #endif 1320 1321 case WSMUXIO_ADD_DEVICE: 1322 #define d ((struct wsmux_device *)data) 1323 if (d->idx == -1 && d->type == WSMUX_KBD) 1324 d->idx = wskbd_pickfree(); 1325 #undef d 1326 /* fall into */ 1327 case WSMUXIO_INJECTEVENT: 1328 case WSMUXIO_REMOVE_DEVICE: 1329 case WSMUXIO_LIST_DEVICES: 1330 inp = sc->sc_input; 1331 if (inp == NULL) 1332 return (ENXIO); 1333 return (wsevsrc_ioctl(inp, cmd, data, flag, l)); 1334 #endif /* NWSKBD > 0 */ 1335 1336 } 1337 return (EPASSTHROUGH); 1338 } 1339 1340 int 1341 wsdisplay_stat_inject(struct device *dev, u_int type, int value) 1342 { 1343 struct wsdisplay_softc *sc = (struct wsdisplay_softc *) dev; 1344 struct wseventvar *evar; 1345 struct wscons_event event; 1346 1347 evar = &sc->evar; 1348 1349 if (evar == NULL) 1350 return (0); 1351 1352 if (evar->q == NULL) 1353 return (1); 1354 1355 event.type = type; 1356 event.value = value; 1357 if (wsevent_inject(evar, &event, 1) != 0) { 1358 log(LOG_WARNING, "wsdisplay: event queue overflow\n"); 1359 return (1); 1360 } 1361 1362 return (0); 1363 } 1364 1365 paddr_t 1366 wsdisplaymmap(dev_t dev, off_t offset, int prot) 1367 { 1368 struct wsdisplay_softc *sc = 1369 device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 1370 struct wsscreen *scr; 1371 1372 if (ISWSDISPLAYSTAT(dev)) 1373 return (-1); 1374 1375 if (ISWSDISPLAYCTL(dev)) 1376 return (-1); 1377 1378 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 1379 return (-1); 1380 1381 if (!(scr->scr_flags & SCR_GRAPHICS)) 1382 return (-1); 1383 1384 /* pass mmap to display */ 1385 return ((*sc->sc_accessops->mmap)(sc->sc_accesscookie, 1386 scr->scr_dconf->emulcookie, offset, prot)); 1387 } 1388 1389 void 1390 wsdisplaystart(struct tty *tp) 1391 { 1392 struct wsdisplay_softc *sc; 1393 struct wsscreen *scr; 1394 int s, n; 1395 u_char *tbuf; 1396 1397 s = spltty(); 1398 if (tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP)) { 1399 splx(s); 1400 return; 1401 } 1402 sc = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(tp->t_dev)); 1403 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(tp->t_dev)]) == NULL) { 1404 splx(s); 1405 return; 1406 } 1407 1408 if (scr->scr_hold_screen) { 1409 tp->t_state |= TS_TIMEOUT; 1410 splx(s); 1411 return; 1412 } 1413 tp->t_state |= TS_BUSY; 1414 splx(s); 1415 1416 /* 1417 * Drain output from ring buffer. 1418 * The output will normally be in one contiguous chunk, but when the 1419 * ring wraps, it will be in two pieces.. one at the end of the ring, 1420 * the other at the start. For performance, rather than loop here, 1421 * we output one chunk, see if there's another one, and if so, output 1422 * it too. 1423 */ 1424 1425 n = ndqb(&tp->t_outq, 0); 1426 tbuf = tp->t_outq.c_cf; 1427 1428 if (!(scr->scr_flags & SCR_GRAPHICS)) { 1429 KASSERT(WSSCREEN_HAS_EMULATOR(scr)); 1430 (*scr->scr_dconf->wsemul->output)(scr->scr_dconf->wsemulcookie, 1431 tbuf, n, 0); 1432 } 1433 ndflush(&tp->t_outq, n); 1434 1435 if ((n = ndqb(&tp->t_outq, 0)) > 0) { 1436 tbuf = tp->t_outq.c_cf; 1437 1438 if (!(scr->scr_flags & SCR_GRAPHICS)) { 1439 KASSERT(WSSCREEN_HAS_EMULATOR(scr)); 1440 (*scr->scr_dconf->wsemul->output) 1441 (scr->scr_dconf->wsemulcookie, tbuf, n, 0); 1442 } 1443 ndflush(&tp->t_outq, n); 1444 } 1445 1446 s = spltty(); 1447 tp->t_state &= ~TS_BUSY; 1448 /* Come back if there's more to do */ 1449 if (tp->t_outq.c_cc) { 1450 tp->t_state |= TS_TIMEOUT; 1451 callout_reset(&tp->t_rstrt_ch, (hz > 128) ? (hz / 128) : 1, 1452 ttrstrt, tp); 1453 } 1454 if (tp->t_outq.c_cc <= tp->t_lowat) { 1455 if (tp->t_state&TS_ASLEEP) { 1456 tp->t_state &= ~TS_ASLEEP; 1457 wakeup(&tp->t_outq); 1458 } 1459 selwakeup(&tp->t_wsel); 1460 } 1461 splx(s); 1462 } 1463 1464 void 1465 wsdisplaystop(struct tty *tp, int flag) 1466 { 1467 int s; 1468 1469 s = spltty(); 1470 if (ISSET(tp->t_state, TS_BUSY)) 1471 if (!ISSET(tp->t_state, TS_TTSTOP)) 1472 SET(tp->t_state, TS_FLUSH); 1473 splx(s); 1474 } 1475 1476 /* Set line parameters. */ 1477 int 1478 wsdisplayparam(struct tty *tp, struct termios *t) 1479 { 1480 1481 tp->t_ispeed = t->c_ispeed; 1482 tp->t_ospeed = t->c_ospeed; 1483 tp->t_cflag = t->c_cflag; 1484 return 0; 1485 } 1486 1487 /* 1488 * Callbacks for the emulation code. 1489 */ 1490 void 1491 wsdisplay_emulbell(void *v) 1492 { 1493 struct wsscreen *scr = v; 1494 1495 if (scr == NULL) /* console, before real attach */ 1496 return; 1497 1498 if (scr->scr_flags & SCR_GRAPHICS) /* can this happen? */ 1499 return; 1500 1501 (void) wsdisplay_internal_ioctl(scr->sc, scr, WSKBDIO_BELL, NULL, 1502 FWRITE, NULL); 1503 } 1504 1505 void 1506 wsdisplay_emulinput(void *v, const u_char *data, u_int count) 1507 { 1508 struct wsscreen *scr = v; 1509 struct tty *tp; 1510 1511 if (v == NULL) /* console, before real attach */ 1512 return; 1513 1514 if (scr->scr_flags & SCR_GRAPHICS) /* XXX can't happen */ 1515 return; 1516 if (!WSSCREEN_HAS_TTY(scr)) 1517 return; 1518 1519 tp = scr->scr_tty; 1520 while (count-- > 0) 1521 (*tp->t_linesw->l_rint)(*data++, tp); 1522 } 1523 1524 /* 1525 * Calls from the keyboard interface. 1526 */ 1527 void 1528 wsdisplay_kbdinput(struct device *dev, keysym_t ks) 1529 { 1530 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)dev; 1531 struct wsscreen *scr; 1532 const char *dp; 1533 int count; 1534 struct tty *tp; 1535 1536 KASSERT(sc != NULL); 1537 1538 scr = sc->sc_focus; 1539 1540 if (!scr || !WSSCREEN_HAS_TTY(scr)) 1541 return; 1542 1543 tp = scr->scr_tty; 1544 1545 if (KS_GROUP(ks) == KS_GROUP_Ascii) 1546 (*tp->t_linesw->l_rint)(KS_VALUE(ks), tp); 1547 else if (WSSCREEN_HAS_EMULATOR(scr)) { 1548 count = (*scr->scr_dconf->wsemul->translate) 1549 (scr->scr_dconf->wsemulcookie, ks, &dp); 1550 while (count-- > 0) 1551 (*tp->t_linesw->l_rint)(*dp++, tp); 1552 } 1553 } 1554 1555 #if defined(WSDISPLAY_COMPAT_RAWKBD) 1556 int 1557 wsdisplay_update_rawkbd(struct wsdisplay_softc *sc, struct wsscreen *scr) 1558 { 1559 #if NWSKBD > 0 1560 int s, raw, data, error; 1561 struct wsevsrc *inp; 1562 1563 s = spltty(); 1564 1565 raw = (scr ? scr->scr_rawkbd : 0); 1566 1567 if (scr != sc->sc_focus || 1568 sc->sc_rawkbd == raw) { 1569 splx(s); 1570 return (0); 1571 } 1572 1573 data = raw ? WSKBD_RAW : WSKBD_TRANSLATED; 1574 inp = sc->sc_input; 1575 if (inp == NULL) { 1576 splx(s); 1577 return (ENXIO); 1578 } 1579 error = wsevsrc_display_ioctl(inp, WSKBDIO_SETMODE, &data, 0, 0); 1580 if (!error) 1581 sc->sc_rawkbd = raw; 1582 splx(s); 1583 return (error); 1584 #else 1585 return (0); 1586 #endif 1587 } 1588 #endif 1589 1590 int 1591 wsdisplay_switch3(void *arg, int error, int waitok) 1592 { 1593 struct wsdisplay_softc *sc = arg; 1594 int no; 1595 struct wsscreen *scr; 1596 1597 if (!(sc->sc_flags & SC_SWITCHPENDING)) { 1598 printf("wsdisplay_switch3: not switching\n"); 1599 return (EINVAL); 1600 } 1601 1602 no = sc->sc_screenwanted; 1603 if (no < 0 || no >= WSDISPLAY_MAXSCREEN) 1604 panic("wsdisplay_switch3: invalid screen %d", no); 1605 scr = sc->sc_scr[no]; 1606 if (!scr) { 1607 printf("wsdisplay_switch3: screen %d disappeared\n", no); 1608 error = ENXIO; 1609 } 1610 1611 if (error) { 1612 /* try to recover, avoid recursion */ 1613 1614 if (sc->sc_oldscreen == WSDISPLAY_NULLSCREEN) { 1615 printf("wsdisplay_switch3: giving up\n"); 1616 sc->sc_focus = 0; 1617 #ifdef WSDISPLAY_COMPAT_RAWKBD 1618 wsdisplay_update_rawkbd(sc, 0); 1619 #endif 1620 sc->sc_flags &= ~SC_SWITCHPENDING; 1621 return (error); 1622 } 1623 1624 sc->sc_screenwanted = sc->sc_oldscreen; 1625 sc->sc_oldscreen = WSDISPLAY_NULLSCREEN; 1626 return (wsdisplay_switch1(arg, 0, waitok)); 1627 } 1628 1629 sc->sc_flags &= ~SC_SWITCHPENDING; 1630 1631 if (!error && (scr->scr_flags & SCR_WAITACTIVE)) 1632 wakeup(scr); 1633 return (error); 1634 } 1635 1636 int 1637 wsdisplay_switch2(void *arg, int error, int waitok) 1638 { 1639 struct wsdisplay_softc *sc = arg; 1640 int no; 1641 struct wsscreen *scr; 1642 1643 if (!(sc->sc_flags & SC_SWITCHPENDING)) { 1644 printf("wsdisplay_switch2: not switching\n"); 1645 return (EINVAL); 1646 } 1647 1648 no = sc->sc_screenwanted; 1649 if (no < 0 || no >= WSDISPLAY_MAXSCREEN) 1650 panic("wsdisplay_switch2: invalid screen %d", no); 1651 scr = sc->sc_scr[no]; 1652 if (!scr) { 1653 printf("wsdisplay_switch2: screen %d disappeared\n", no); 1654 error = ENXIO; 1655 } 1656 1657 if (error) { 1658 /* try to recover, avoid recursion */ 1659 1660 if (sc->sc_oldscreen == WSDISPLAY_NULLSCREEN) { 1661 printf("wsdisplay_switch2: giving up\n"); 1662 sc->sc_focus = 0; 1663 sc->sc_flags &= ~SC_SWITCHPENDING; 1664 return (error); 1665 } 1666 1667 sc->sc_screenwanted = sc->sc_oldscreen; 1668 sc->sc_oldscreen = WSDISPLAY_NULLSCREEN; 1669 return (wsdisplay_switch1(arg, 0, waitok)); 1670 } 1671 1672 sc->sc_focusidx = no; 1673 sc->sc_focus = scr; 1674 1675 #ifdef WSDISPLAY_COMPAT_RAWKBD 1676 (void) wsdisplay_update_rawkbd(sc, scr); 1677 #endif 1678 /* keyboard map??? */ 1679 1680 #define wsswitch_cb3 ((void (*)(void *, int, int))wsdisplay_switch3) 1681 if (scr->scr_syncops) { 1682 error = (*scr->scr_syncops->attach)(scr->scr_synccookie, waitok, 1683 sc->sc_isconsole && wsdisplay_cons_pollmode ? 0 : wsswitch_cb3, sc); 1684 if (error == EAGAIN) { 1685 /* switch will be done asynchronously */ 1686 return (0); 1687 } 1688 } 1689 1690 return (wsdisplay_switch3(sc, error, waitok)); 1691 } 1692 1693 int 1694 wsdisplay_switch1(void *arg, int error, int waitok) 1695 { 1696 struct wsdisplay_softc *sc = arg; 1697 int no; 1698 struct wsscreen *scr; 1699 1700 if (!(sc->sc_flags & SC_SWITCHPENDING)) { 1701 printf("wsdisplay_switch1: not switching\n"); 1702 return (EINVAL); 1703 } 1704 1705 no = sc->sc_screenwanted; 1706 if (no == WSDISPLAY_NULLSCREEN) { 1707 sc->sc_flags &= ~SC_SWITCHPENDING; 1708 if (!error) { 1709 sc->sc_focus = 0; 1710 } 1711 wakeup(sc); 1712 return (error); 1713 } 1714 if (no < 0 || no >= WSDISPLAY_MAXSCREEN) 1715 panic("wsdisplay_switch1: invalid screen %d", no); 1716 scr = sc->sc_scr[no]; 1717 if (!scr) { 1718 printf("wsdisplay_switch1: screen %d disappeared\n", no); 1719 error = ENXIO; 1720 } 1721 1722 if (error) { 1723 sc->sc_flags &= ~SC_SWITCHPENDING; 1724 return (error); 1725 } 1726 1727 #define wsswitch_cb2 ((void (*)(void *, int, int))wsdisplay_switch2) 1728 error = (*sc->sc_accessops->show_screen)(sc->sc_accesscookie, 1729 scr->scr_dconf->emulcookie, 1730 waitok, 1731 sc->sc_isconsole && wsdisplay_cons_pollmode ? 0 : wsswitch_cb2, sc); 1732 if (error == EAGAIN) { 1733 /* switch will be done asynchronously */ 1734 return (0); 1735 } 1736 1737 return (wsdisplay_switch2(sc, error, waitok)); 1738 } 1739 1740 int 1741 wsdisplay_switch(struct device *dev, int no, int waitok) 1742 { 1743 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)dev; 1744 int s, res = 0; 1745 struct wsscreen *scr; 1746 1747 if (no != WSDISPLAY_NULLSCREEN) { 1748 if ((no < 0 || no >= WSDISPLAY_MAXSCREEN)) 1749 return (EINVAL); 1750 if (sc->sc_scr[no] == NULL) 1751 return (ENXIO); 1752 } 1753 1754 wsdisplay_stat_inject(dev, WSCONS_EVENT_SCREEN_SWITCH, no); 1755 1756 s = spltty(); 1757 1758 if ((sc->sc_focus && no == sc->sc_focusidx) || 1759 (sc->sc_focus == NULL && no == WSDISPLAY_NULLSCREEN)) { 1760 splx(s); 1761 return (0); 1762 } 1763 1764 if (sc->sc_flags & SC_SWITCHPENDING) { 1765 splx(s); 1766 return (EBUSY); 1767 } 1768 1769 sc->sc_flags |= SC_SWITCHPENDING; 1770 sc->sc_screenwanted = no; 1771 1772 splx(s); 1773 1774 scr = sc->sc_focus; 1775 if (!scr) { 1776 sc->sc_oldscreen = WSDISPLAY_NULLSCREEN; 1777 return (wsdisplay_switch1(sc, 0, waitok)); 1778 } else 1779 sc->sc_oldscreen = sc->sc_focusidx; 1780 1781 #define wsswitch_cb1 ((void (*)(void *, int, int))wsdisplay_switch1) 1782 if (scr->scr_syncops) { 1783 res = (*scr->scr_syncops->detach)(scr->scr_synccookie, waitok, 1784 sc->sc_isconsole && wsdisplay_cons_pollmode ? 0 : wsswitch_cb1, sc); 1785 if (res == EAGAIN) { 1786 /* switch will be done asynchronously */ 1787 return (0); 1788 } 1789 } else if (scr->scr_flags & SCR_GRAPHICS) { 1790 /* no way to save state */ 1791 res = EBUSY; 1792 } 1793 1794 return (wsdisplay_switch1(sc, res, waitok)); 1795 } 1796 1797 void 1798 wsdisplay_reset(struct device *dev, enum wsdisplay_resetops op) 1799 { 1800 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)dev; 1801 struct wsscreen *scr; 1802 1803 KASSERT(sc != NULL); 1804 scr = sc->sc_focus; 1805 1806 if (!scr) 1807 return; 1808 1809 switch (op) { 1810 case WSDISPLAY_RESETEMUL: 1811 if (!WSSCREEN_HAS_EMULATOR(scr)) 1812 break; 1813 (*scr->scr_dconf->wsemul->reset)(scr->scr_dconf->wsemulcookie, 1814 WSEMUL_RESET); 1815 break; 1816 case WSDISPLAY_RESETCLOSE: 1817 wsdisplay_closescreen(sc, scr); 1818 break; 1819 } 1820 } 1821 1822 /* 1823 * Interface for (external) VT switch / process synchronization code 1824 */ 1825 int 1826 wsscreen_attach_sync(struct wsscreen *scr, const struct wscons_syncops *ops, 1827 void *cookie) 1828 { 1829 if (scr->scr_syncops) { 1830 /* 1831 * The screen is already claimed. 1832 * Check if the owner is still alive. 1833 */ 1834 if ((*scr->scr_syncops->check)(scr->scr_synccookie)) 1835 return (EBUSY); 1836 } 1837 scr->scr_syncops = ops; 1838 scr->scr_synccookie = cookie; 1839 return (0); 1840 } 1841 1842 int 1843 wsscreen_detach_sync(struct wsscreen *scr) 1844 { 1845 if (!scr->scr_syncops) 1846 return (EINVAL); 1847 scr->scr_syncops = 0; 1848 return (0); 1849 } 1850 1851 int 1852 wsscreen_lookup_sync(struct wsscreen *scr, 1853 const struct wscons_syncops *ops, /* used as ID */ 1854 void **cookiep) 1855 { 1856 if (!scr->scr_syncops || ops != scr->scr_syncops) 1857 return (EINVAL); 1858 *cookiep = scr->scr_synccookie; 1859 return (0); 1860 } 1861 1862 /* 1863 * Interface to virtual screen stuff 1864 */ 1865 int 1866 wsdisplay_maxscreenidx(struct wsdisplay_softc *sc) 1867 { 1868 return (WSDISPLAY_MAXSCREEN - 1); 1869 } 1870 1871 int 1872 wsdisplay_screenstate(struct wsdisplay_softc *sc, int idx) 1873 { 1874 if (idx < 0 || idx >= WSDISPLAY_MAXSCREEN) 1875 return (EINVAL); 1876 if (!sc->sc_scr[idx]) 1877 return (ENXIO); 1878 return ((sc->sc_scr[idx]->scr_flags & SCR_OPEN) ? EBUSY : 0); 1879 } 1880 1881 int 1882 wsdisplay_getactivescreen(struct wsdisplay_softc *sc) 1883 { 1884 return (sc->sc_focus ? sc->sc_focusidx : WSDISPLAY_NULLSCREEN); 1885 } 1886 1887 int 1888 wsscreen_switchwait(struct wsdisplay_softc *sc, int no) 1889 { 1890 struct wsscreen *scr; 1891 int s, res = 0; 1892 1893 if (no == WSDISPLAY_NULLSCREEN) { 1894 s = spltty(); 1895 while (sc->sc_focus && res == 0) { 1896 res = tsleep(sc, PCATCH, "wswait", 0); 1897 } 1898 splx(s); 1899 return (res); 1900 } 1901 1902 if (no < 0 || no >= WSDISPLAY_MAXSCREEN) 1903 return (ENXIO); 1904 scr = sc->sc_scr[no]; 1905 if (!scr) 1906 return (ENXIO); 1907 1908 s = spltty(); 1909 if (scr != sc->sc_focus) { 1910 scr->scr_flags |= SCR_WAITACTIVE; 1911 res = tsleep(scr, PCATCH, "wswait", 0); 1912 if (scr != sc->sc_scr[no]) 1913 res = ENXIO; /* disappeared in the meantime */ 1914 else 1915 scr->scr_flags &= ~SCR_WAITACTIVE; 1916 } 1917 splx(s); 1918 return (res); 1919 } 1920 1921 void 1922 wsdisplay_kbdholdscreen(struct device *dev, int hold) 1923 { 1924 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)dev; 1925 struct wsscreen *scr; 1926 1927 scr = sc->sc_focus; 1928 1929 if (hold) 1930 scr->scr_hold_screen = 1; 1931 else { 1932 scr->scr_hold_screen = 0; 1933 callout_reset(&scr->scr_tty->t_rstrt_ch, 0, 1934 ttrstrt, scr->scr_tty); /* "immediate" */ 1935 } 1936 } 1937 1938 #if NWSKBD > 0 1939 void 1940 wsdisplay_set_console_kbd(struct wsevsrc *src) 1941 { 1942 if (wsdisplay_console_device == NULL) { 1943 src->me_dispdv = NULL; 1944 return; 1945 } 1946 #if NWSMUX > 0 1947 if (wsmux_attach_sc((struct wsmux_softc *) 1948 wsdisplay_console_device->sc_input, src)) { 1949 src->me_dispdv = NULL; 1950 return; 1951 } 1952 #else 1953 wsdisplay_console_device->sc_input = src; 1954 #endif 1955 src->me_dispdv = &wsdisplay_console_device->sc_dv; 1956 } 1957 #endif /* NWSKBD > 0 */ 1958 1959 /* 1960 * Console interface. 1961 */ 1962 void 1963 wsdisplay_cnputc(dev_t dev, int i) 1964 { 1965 struct wsscreen_internal *dc; 1966 u_char c = i; 1967 1968 if (!wsdisplay_console_initted) 1969 return; 1970 1971 if ((wsdisplay_console_device != NULL) && 1972 (wsdisplay_console_device->sc_scr[0] != NULL) && 1973 (wsdisplay_console_device->sc_scr[0]->scr_flags & SCR_GRAPHICS)) 1974 return; 1975 1976 dc = &wsdisplay_console_conf; 1977 (*dc->wsemul->output)(dc->wsemulcookie, &c, 1, 1); 1978 } 1979 1980 static int 1981 wsdisplay_getc_dummy(dev_t dev) 1982 { 1983 /* panic? */ 1984 return (0); 1985 } 1986 1987 static void 1988 wsdisplay_pollc(dev_t dev, int on) 1989 { 1990 1991 wsdisplay_cons_pollmode = on; 1992 1993 /* notify to fb drivers */ 1994 if (wsdisplay_console_device != NULL && 1995 wsdisplay_console_device->sc_accessops->pollc != NULL) 1996 (*wsdisplay_console_device->sc_accessops->pollc) 1997 (wsdisplay_console_device->sc_accesscookie, on); 1998 1999 /* notify to kbd drivers */ 2000 if (wsdisplay_cons_kbd_pollc) 2001 (*wsdisplay_cons_kbd_pollc)(NODEV, on); 2002 } 2003 2004 void 2005 wsdisplay_set_cons_kbd(int (*get)(dev_t), void (*poll)(dev_t, int), 2006 void (*bell)(dev_t, u_int, u_int, u_int)) 2007 { 2008 wsdisplay_cons.cn_getc = get; 2009 wsdisplay_cons.cn_bell = bell; 2010 wsdisplay_cons_kbd_pollc = poll; 2011 } 2012 2013 void 2014 wsdisplay_unset_cons_kbd(void) 2015 { 2016 wsdisplay_cons.cn_getc = wsdisplay_getc_dummy; 2017 wsdisplay_cons.cn_bell = NULL; 2018 wsdisplay_cons_kbd_pollc = 0; 2019 } 2020 2021 /* 2022 * Switch the console display to it's first screen. 2023 */ 2024 void 2025 wsdisplay_switchtoconsole(void) 2026 { 2027 struct wsdisplay_softc *sc; 2028 struct wsscreen *scr; 2029 2030 if (wsdisplay_console_device != NULL) { 2031 sc = wsdisplay_console_device; 2032 if ((scr = sc->sc_scr[0]) == NULL) 2033 return; 2034 (*sc->sc_accessops->show_screen)(sc->sc_accesscookie, 2035 scr->scr_dconf->emulcookie, 2036 0, NULL, NULL); 2037 } 2038 } 2039 2040 /* 2041 * Switch the console at shutdown. 2042 */ 2043 static void 2044 wsdisplay_shutdownhook(void *arg) 2045 { 2046 2047 wsdisplay_switchtoconsole(); 2048 } 2049
Indexes created Wed Oct 15 16:09:53 GMT 2025