wsdisplay.c revision 1.122.4.1
1 /* $NetBSD: wsdisplay.c,v 1.122.4.1 2009/01/19 13:19:18 skrll 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 1.122.4.1 2009/01/19 13:19:18 skrll Exp $"); 35 36 #include "opt_wsdisplay_compat.h" 37 #include "opt_wsmsgattrs.h" 38 #include "wskbd.h" 39 #include "wsmux.h" 40 #include "wsdisplay.h" 41 42 #include <sys/param.h> 43 #include <sys/conf.h> 44 #include <sys/device.h> 45 #include <sys/ioctl.h> 46 #include <sys/poll.h> 47 #include <sys/kernel.h> 48 #include <sys/proc.h> 49 #include <sys/malloc.h> 50 #include <sys/syslog.h> 51 #include <sys/systm.h> 52 #include <sys/tty.h> 53 #include <sys/signalvar.h> 54 #include <sys/errno.h> 55 #include <sys/fcntl.h> 56 #include <sys/vnode.h> 57 #include <sys/kauth.h> 58 59 #include <dev/wscons/wsconsio.h> 60 #include <dev/wscons/wseventvar.h> 61 #include <dev/wscons/wsmuxvar.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_addscreen_print(struct wsdisplay_softc *, int, int); 107 static void wsdisplay_closescreen(struct wsdisplay_softc *, struct wsscreen *); 108 int wsdisplay_delscreen(struct wsdisplay_softc *, int, int); 109 110 #define WSDISPLAY_MAXSCREEN 8 111 112 struct wsdisplay_softc { 113 device_t sc_dev; 114 115 const struct wsdisplay_accessops *sc_accessops; 116 void *sc_accesscookie; 117 118 const struct wsscreen_list *sc_scrdata; 119 #ifdef WSDISPLAY_SCROLLSUPPORT 120 struct wsdisplay_scroll_data sc_scroll_values; 121 #endif 122 123 struct wsscreen *sc_scr[WSDISPLAY_MAXSCREEN]; 124 int sc_focusidx; /* available only if sc_focus isn't null */ 125 struct wsscreen *sc_focus; 126 127 struct wseventvar evar; 128 129 int sc_isconsole; 130 131 int sc_flags; 132 #define SC_SWITCHPENDING 1 133 #define SC_SWITCHERROR 2 134 #define SC_XATTACHED 4 /* X server active */ 135 kmutex_t sc_flagsmtx; /* for flags, might also be used for focus */ 136 kcondvar_t sc_flagscv; 137 138 int sc_screenwanted, sc_oldscreen; /* valid with SC_SWITCHPENDING */ 139 140 #if NWSKBD > 0 141 struct wsevsrc *sc_input; 142 #ifdef WSDISPLAY_COMPAT_RAWKBD 143 int sc_rawkbd; 144 #endif 145 #endif /* NWSKBD > 0 */ 146 }; 147 148 #ifdef WSDISPLAY_SCROLLSUPPORT 149 150 struct wsdisplay_scroll_data wsdisplay_default_scroll_values = { 151 WSDISPLAY_SCROLL_DOALL, 152 25, 153 2, 154 }; 155 #endif 156 157 extern struct cfdriver wsdisplay_cd; 158 159 /* Autoconfiguration definitions. */ 160 static int wsdisplay_emul_match(device_t , cfdata_t, void *); 161 static void wsdisplay_emul_attach(device_t, device_t, void *); 162 static int wsdisplay_noemul_match(device_t, cfdata_t, void *); 163 static void wsdisplay_noemul_attach(device_t, device_t, void *); 164 static bool wsdisplay_suspend(device_t PMF_FN_PROTO); 165 166 CFATTACH_DECL_NEW(wsdisplay_emul, sizeof (struct wsdisplay_softc), 167 wsdisplay_emul_match, wsdisplay_emul_attach, NULL, NULL); 168 169 CFATTACH_DECL_NEW(wsdisplay_noemul, sizeof (struct wsdisplay_softc), 170 wsdisplay_noemul_match, wsdisplay_noemul_attach, NULL, NULL); 171 172 dev_type_open(wsdisplayopen); 173 dev_type_close(wsdisplayclose); 174 dev_type_read(wsdisplayread); 175 dev_type_write(wsdisplaywrite); 176 dev_type_ioctl(wsdisplayioctl); 177 dev_type_stop(wsdisplaystop); 178 dev_type_tty(wsdisplaytty); 179 dev_type_poll(wsdisplaypoll); 180 dev_type_mmap(wsdisplaymmap); 181 dev_type_kqfilter(wsdisplaykqfilter); 182 183 const struct cdevsw wsdisplay_cdevsw = { 184 wsdisplayopen, wsdisplayclose, wsdisplayread, wsdisplaywrite, 185 wsdisplayioctl, wsdisplaystop, wsdisplaytty, wsdisplaypoll, 186 wsdisplaymmap, wsdisplaykqfilter, D_TTY 187 }; 188 189 static void wsdisplaystart(struct tty *); 190 static int wsdisplayparam(struct tty *, struct termios *); 191 192 193 #define WSDISPLAYUNIT(dev) (minor(dev) >> 8) 194 #define WSDISPLAYSCREEN(dev) (minor(dev) & 0xff) 195 #define ISWSDISPLAYSTAT(dev) (WSDISPLAYSCREEN(dev) == 254) 196 #define ISWSDISPLAYCTL(dev) (WSDISPLAYSCREEN(dev) == 255) 197 #define WSDISPLAYMINOR(unit, screen) (((unit) << 8) | (screen)) 198 199 #define WSSCREEN_HAS_EMULATOR(scr) ((scr)->scr_dconf->wsemul != NULL) 200 #define WSSCREEN_HAS_TTY(scr) ((scr)->scr_tty != NULL) 201 202 static void wsdisplay_common_attach(struct wsdisplay_softc *sc, 203 int console, int kbdmux, const struct wsscreen_list *, 204 const struct wsdisplay_accessops *accessops, 205 void *accesscookie); 206 207 #ifdef WSDISPLAY_COMPAT_RAWKBD 208 int wsdisplay_update_rawkbd(struct wsdisplay_softc *, 209 struct wsscreen *); 210 #endif 211 212 static int wsdisplay_console_initted; 213 static int wsdisplay_console_attached; 214 static struct wsdisplay_softc *wsdisplay_console_device; 215 static struct wsscreen_internal wsdisplay_console_conf; 216 217 static int wsdisplay_getc_dummy(dev_t); 218 static void wsdisplay_pollc(dev_t, int); 219 220 static int wsdisplay_cons_pollmode; 221 static void (*wsdisplay_cons_kbd_pollc)(dev_t, int); 222 223 static struct consdev wsdisplay_cons = { 224 NULL, NULL, wsdisplay_getc_dummy, wsdisplay_cnputc, 225 wsdisplay_pollc, NULL, NULL, NULL, NODEV, CN_NORMAL 226 }; 227 228 #ifndef WSDISPLAY_DEFAULTSCREENS 229 # define WSDISPLAY_DEFAULTSCREENS 0 230 #endif 231 int wsdisplay_defaultscreens = WSDISPLAY_DEFAULTSCREENS; 232 233 static int wsdisplay_switch1(device_t, int, int); 234 static void wsdisplay_switch1_cb(void *, int, int); 235 static int wsdisplay_switch2(device_t, int, int); 236 static void wsdisplay_switch2_cb(void *, int, int); 237 static int wsdisplay_switch3(device_t, int, int); 238 static void wsdisplay_switch3_cb(void *, int, int); 239 240 int wsdisplay_clearonclose; 241 242 struct wsscreen * 243 wsscreen_attach(struct wsdisplay_softc *sc, int console, const char *emul, 244 const struct wsscreen_descr *type, void *cookie, int ccol, 245 int crow, long defattr) 246 { 247 struct wsscreen_internal *dconf; 248 struct wsscreen *scr; 249 250 scr = malloc(sizeof(struct wsscreen), M_DEVBUF, M_WAITOK); 251 if (!scr) 252 return (NULL); 253 254 if (console) { 255 dconf = &wsdisplay_console_conf; 256 /* 257 * If there's an emulation, tell it about the callback argument. 258 * The other stuff is already there. 259 */ 260 if (dconf->wsemul != NULL) 261 (*dconf->wsemul->attach)(1, 0, 0, 0, 0, scr, 0); 262 } else { /* not console */ 263 dconf = malloc(sizeof(struct wsscreen_internal), 264 M_DEVBUF, M_NOWAIT); 265 dconf->emulops = type->textops; 266 dconf->emulcookie = cookie; 267 if (dconf->emulops) { 268 dconf->wsemul = wsemul_pick(emul); 269 if (dconf->wsemul == NULL) { 270 free(dconf, M_DEVBUF); 271 free(scr, M_DEVBUF); 272 return (NULL); 273 } 274 dconf->wsemulcookie = 275 (*dconf->wsemul->attach)(0, type, cookie, 276 ccol, crow, scr, defattr); 277 } else 278 dconf->wsemul = NULL; 279 dconf->scrdata = type; 280 } 281 282 scr->scr_dconf = dconf; 283 284 scr->scr_tty = ttymalloc(); 285 tty_attach(scr->scr_tty); 286 scr->scr_hold_screen = 0; 287 if (WSSCREEN_HAS_EMULATOR(scr)) 288 scr->scr_flags = 0; 289 else 290 scr->scr_flags = SCR_GRAPHICS; 291 292 scr->scr_syncops = 0; 293 scr->sc = sc; 294 #ifdef WSDISPLAY_COMPAT_RAWKBD 295 scr->scr_rawkbd = 0; 296 #endif 297 return (scr); 298 } 299 300 void 301 wsscreen_detach(struct wsscreen *scr) 302 { 303 u_int ccol, crow; /* XXX */ 304 305 if (WSSCREEN_HAS_TTY(scr)) { 306 tty_detach(scr->scr_tty); 307 ttyfree(scr->scr_tty); 308 } 309 if (WSSCREEN_HAS_EMULATOR(scr)) 310 (*scr->scr_dconf->wsemul->detach)(scr->scr_dconf->wsemulcookie, 311 &ccol, &crow); 312 free(scr->scr_dconf, M_DEVBUF); 313 free(scr, M_DEVBUF); 314 } 315 316 const struct wsscreen_descr * 317 wsdisplay_screentype_pick(const struct wsscreen_list *scrdata, const char *name) 318 { 319 int i; 320 const struct wsscreen_descr *scr; 321 322 KASSERT(scrdata->nscreens > 0); 323 324 if (name == NULL) 325 return (scrdata->screens[0]); 326 327 for (i = 0; i < scrdata->nscreens; i++) { 328 scr = scrdata->screens[i]; 329 if (!strcmp(name, scr->name)) 330 return (scr); 331 } 332 333 return (0); 334 } 335 336 /* 337 * print info about attached screen 338 */ 339 static void 340 wsdisplay_addscreen_print(struct wsdisplay_softc *sc, int idx, int count) 341 { 342 aprint_verbose_dev(sc->sc_dev, "screen %d", idx); 343 if (count > 1) 344 aprint_verbose("-%d", idx + (count-1)); 345 aprint_verbose(" added (%s", sc->sc_scr[idx]->scr_dconf->scrdata->name); 346 if (WSSCREEN_HAS_EMULATOR(sc->sc_scr[idx])) { 347 aprint_verbose(", %s emulation", 348 sc->sc_scr[idx]->scr_dconf->wsemul->name); 349 } 350 aprint_verbose(")\n"); 351 } 352 353 int 354 wsdisplay_addscreen(struct wsdisplay_softc *sc, int idx, 355 const char *screentype, const char *emul) 356 { 357 const struct wsscreen_descr *scrdesc; 358 int error; 359 void *cookie; 360 int ccol, crow; 361 long defattr; 362 struct wsscreen *scr; 363 int s; 364 365 if (idx < 0 || idx >= WSDISPLAY_MAXSCREEN) 366 return (EINVAL); 367 if (sc->sc_scr[idx] != NULL) 368 return (EBUSY); 369 370 scrdesc = wsdisplay_screentype_pick(sc->sc_scrdata, screentype); 371 if (!scrdesc) 372 return (ENXIO); 373 error = (*sc->sc_accessops->alloc_screen)(sc->sc_accesscookie, 374 scrdesc, &cookie, &ccol, &crow, &defattr); 375 if (error) 376 return (error); 377 378 scr = wsscreen_attach(sc, 0, emul, scrdesc, 379 cookie, ccol, crow, defattr); 380 if (scr == NULL) { 381 (*sc->sc_accessops->free_screen)(sc->sc_accesscookie, 382 cookie); 383 return (ENXIO); 384 } 385 386 sc->sc_scr[idx] = scr; 387 388 /* if no screen has focus yet, activate the first we get */ 389 s = spltty(); 390 if (!sc->sc_focus) { 391 (*sc->sc_accessops->show_screen)(sc->sc_accesscookie, 392 scr->scr_dconf->emulcookie, 393 0, 0, 0); 394 sc->sc_focusidx = idx; 395 sc->sc_focus = scr; 396 } 397 splx(s); 398 return (0); 399 } 400 401 static void 402 wsdisplay_closescreen(struct wsdisplay_softc *sc, struct wsscreen *scr) 403 { 404 int maj, mn, idx; 405 406 /* hangup */ 407 if (WSSCREEN_HAS_TTY(scr)) { 408 struct tty *tp = scr->scr_tty; 409 (*tp->t_linesw->l_modem)(tp, 0); 410 } 411 412 /* locate the major number */ 413 maj = cdevsw_lookup_major(&wsdisplay_cdevsw); 414 /* locate the screen index */ 415 for (idx = 0; idx < WSDISPLAY_MAXSCREEN; idx++) 416 if (scr == sc->sc_scr[idx]) 417 break; 418 #ifdef DIAGNOSTIC 419 if (idx == WSDISPLAY_MAXSCREEN) 420 panic("wsdisplay_forceclose: bad screen"); 421 #endif 422 423 /* nuke the vnodes */ 424 mn = WSDISPLAYMINOR(device_unit(sc->sc_dev), idx); 425 vdevgone(maj, mn, mn, VCHR); 426 } 427 428 #ifdef WSDISPLAY_SCROLLSUPPORT 429 void 430 wsdisplay_scroll(void *arg, int op) 431 { 432 device_t dv = arg; 433 struct wsdisplay_softc *sc = device_private(dv); 434 struct wsscreen *scr; 435 int lines; 436 437 scr = sc->sc_focus; 438 439 if (!scr) 440 return; 441 442 if (op == WSDISPLAY_SCROLL_RESET) 443 lines = 0; 444 else { 445 lines = (op & WSDISPLAY_SCROLL_LOW) ? 446 sc->sc_scroll_values.slowlines : 447 sc->sc_scroll_values.fastlines; 448 if (op & WSDISPLAY_SCROLL_BACKWARD) 449 lines = -(lines); 450 } 451 452 if (sc->sc_accessops->scroll) { 453 (*sc->sc_accessops->scroll)(sc->sc_accesscookie, 454 sc->sc_focus->scr_dconf->emulcookie, lines); 455 } 456 } 457 #endif 458 459 int 460 wsdisplay_delscreen(struct wsdisplay_softc *sc, int idx, int flags) 461 { 462 struct wsscreen *scr; 463 int s; 464 void *cookie; 465 466 if (idx < 0 || idx >= WSDISPLAY_MAXSCREEN) 467 return (EINVAL); 468 if ((scr = sc->sc_scr[idx]) == NULL) 469 return (ENXIO); 470 471 if (scr->scr_dconf == &wsdisplay_console_conf || 472 scr->scr_syncops || 473 ((scr->scr_flags & SCR_OPEN) && !(flags & WSDISPLAY_DELSCR_FORCE))) 474 return(EBUSY); 475 476 wsdisplay_closescreen(sc, scr); 477 478 /* 479 * delete pointers, so neither device entries 480 * nor keyboard input can reference it anymore 481 */ 482 s = spltty(); 483 if (sc->sc_focus == scr) { 484 sc->sc_focus = 0; 485 #ifdef WSDISPLAY_COMPAT_RAWKBD 486 wsdisplay_update_rawkbd(sc, 0); 487 #endif 488 } 489 sc->sc_scr[idx] = 0; 490 splx(s); 491 492 /* 493 * Wake up processes waiting for the screen to 494 * be activated. Sleepers must check whether 495 * the screen still exists. 496 */ 497 if (scr->scr_flags & SCR_WAITACTIVE) 498 wakeup(scr); 499 500 /* save a reference to the graphics screen */ 501 cookie = scr->scr_dconf->emulcookie; 502 503 wsscreen_detach(scr); 504 505 (*sc->sc_accessops->free_screen)(sc->sc_accesscookie, 506 cookie); 507 508 aprint_verbose_dev(sc->sc_dev, "screen %d deleted\n", idx); 509 return (0); 510 } 511 512 /* 513 * Autoconfiguration functions. 514 */ 515 int 516 wsdisplay_emul_match(device_t parent, cfdata_t match, void *aux) 517 { 518 struct wsemuldisplaydev_attach_args *ap = aux; 519 520 if (match->wsemuldisplaydevcf_console != 521 WSEMULDISPLAYDEVCF_CONSOLE_UNK) { 522 /* 523 * If console-ness of device specified, either match 524 * exactly (at high priority), or fail. 525 */ 526 if (match->wsemuldisplaydevcf_console != 0 && 527 ap->console != 0) 528 return (10); 529 else 530 return (0); 531 } 532 533 /* If console-ness unspecified, it wins. */ 534 return (1); 535 } 536 537 void 538 wsdisplay_emul_attach(device_t parent, device_t self, void *aux) 539 { 540 struct wsdisplay_softc *sc = device_private(self); 541 struct wsemuldisplaydev_attach_args *ap = aux; 542 543 sc->sc_dev = self; 544 545 /* Don't allow more than one console to attach */ 546 if (wsdisplay_console_attached && ap->console) 547 ap->console = 0; 548 549 wsdisplay_common_attach(sc, ap->console, 550 device_cfdata(self)->wsemuldisplaydevcf_kbdmux, ap->scrdata, 551 ap->accessops, ap->accesscookie); 552 553 if (ap->console) { 554 int maj; 555 556 /* locate the major number */ 557 maj = cdevsw_lookup_major(&wsdisplay_cdevsw); 558 559 cn_tab->cn_dev = makedev(maj, WSDISPLAYMINOR(device_unit(self), 560 0)); 561 } 562 } 563 564 /* Print function (for parent devices). */ 565 int 566 wsemuldisplaydevprint(void *aux, const char *pnp) 567 { 568 #if 0 /* -Wunused */ 569 struct wsemuldisplaydev_attach_args *ap = aux; 570 #endif 571 572 if (pnp) 573 aprint_normal("wsdisplay at %s", pnp); 574 #if 0 /* don't bother; it's ugly */ 575 aprint_normal(" console %d", ap->console); 576 #endif 577 578 return (UNCONF); 579 } 580 581 int 582 wsdisplay_noemul_match(device_t parent, cfdata_t match, void *aux) 583 { 584 #if 0 /* -Wunused */ 585 struct wsdisplaydev_attach_args *ap = aux; 586 #endif 587 588 /* Always match. */ 589 return (1); 590 } 591 592 void 593 wsdisplay_noemul_attach(device_t parent, device_t self, void *aux) 594 { 595 struct wsdisplay_softc *sc = device_private(self); 596 struct wsdisplaydev_attach_args *ap = aux; 597 598 sc->sc_dev = self; 599 600 wsdisplay_common_attach(sc, 0, 601 device_cfdata(self)->wsemuldisplaydevcf_kbdmux, NULL, 602 ap->accessops, ap->accesscookie); 603 } 604 605 static void 606 wsdisplay_swdone_cb(void *arg, int error, int waitok) 607 { 608 struct wsdisplay_softc *sc = arg; 609 610 mutex_enter(&sc->sc_flagsmtx); 611 KASSERT(sc->sc_flags & SC_SWITCHPENDING); 612 if (error) 613 sc->sc_flags |= SC_SWITCHERROR; 614 sc->sc_flags &= ~SC_SWITCHPENDING; 615 cv_signal(&sc->sc_flagscv); 616 mutex_exit(&sc->sc_flagsmtx); 617 } 618 619 static int 620 wsdisplay_dosync(struct wsdisplay_softc *sc, int attach) 621 { 622 struct wsscreen *scr; 623 int (*op)(void *, int, void (*)(void *, int, int), void *); 624 int res; 625 626 scr = sc->sc_focus; 627 if (!scr || !scr->scr_syncops) 628 return 0; /* XXX check SCR_GRAPHICS? */ 629 630 sc->sc_flags |= SC_SWITCHPENDING; 631 sc->sc_flags &= ~SC_SWITCHERROR; 632 if (attach) 633 op = scr->scr_syncops->attach; 634 else 635 op = scr->scr_syncops->detach; 636 res = (*op)(scr->scr_synccookie, 1, wsdisplay_swdone_cb, sc); 637 if (res == EAGAIN) { 638 /* wait for callback */ 639 mutex_enter(&sc->sc_flagsmtx); 640 while (sc->sc_flags & SC_SWITCHPENDING) 641 cv_wait_sig(&sc->sc_flagscv, &sc->sc_flagsmtx); 642 mutex_exit(&sc->sc_flagsmtx); 643 if (sc->sc_flags & SC_SWITCHERROR) 644 return (EIO); /* XXX pass real error */ 645 } else { 646 sc->sc_flags &= ~SC_SWITCHPENDING; 647 if (res) 648 return (res); 649 } 650 if (attach) 651 sc->sc_flags |= SC_XATTACHED; 652 else 653 sc->sc_flags &= ~SC_XATTACHED; 654 return 0; 655 } 656 657 int 658 wsdisplay_handlex(int resume) 659 { 660 int i, res; 661 device_t dv; 662 663 for (i = 0; i < wsdisplay_cd.cd_ndevs; i++) { 664 dv = device_lookup(&wsdisplay_cd, i); 665 if (!dv) 666 continue; 667 res = wsdisplay_dosync(device_private(dv), resume); 668 if (res) 669 return (res); 670 } 671 return (0); 672 } 673 674 static bool 675 wsdisplay_suspend(device_t dv PMF_FN_ARGS) 676 { 677 struct wsdisplay_softc *sc = device_private(dv); 678 #ifdef DIAGNOSTIC 679 struct wsscreen *scr = sc->sc_focus; 680 if (sc->sc_flags & SC_XATTACHED) { 681 KASSERT(scr && scr->scr_syncops); 682 } 683 #endif 684 #if 1 685 /* 686 * XXX X servers should have been detached earlier. 687 * pmf currently ignores our return value and suspends the system 688 * after device suspend failures. We try to avoid bigger damage 689 * and try to detach the X server here. This is not safe because 690 * other parts of the system which the X server deals with 691 * might already be suspended. 692 */ 693 if (sc->sc_flags & SC_XATTACHED) { 694 printf("%s: emergency X server detach\n", device_xname(dv)); 695 wsdisplay_dosync(sc, 0); 696 } 697 #endif 698 return (!(sc->sc_flags & SC_XATTACHED)); 699 } 700 701 /* Print function (for parent devices). */ 702 int 703 wsdisplaydevprint(void *aux, const char *pnp) 704 { 705 #if 0 /* -Wunused */ 706 struct wsdisplaydev_attach_args *ap = aux; 707 #endif 708 709 if (pnp) 710 aprint_normal("wsdisplay at %s", pnp); 711 712 return (UNCONF); 713 } 714 715 static void 716 wsdisplay_common_attach(struct wsdisplay_softc *sc, int console, int kbdmux, 717 const struct wsscreen_list *scrdata, 718 const struct wsdisplay_accessops *accessops, 719 void *accesscookie) 720 { 721 int i, start=0; 722 #if NWSKBD > 0 723 struct wsevsrc *kme; 724 #if NWSMUX > 0 725 struct wsmux_softc *mux; 726 727 if (kbdmux >= 0) 728 mux = wsmux_getmux(kbdmux); 729 else 730 mux = wsmux_create("dmux", device_unit(sc->sc_dev)); 731 /* XXX panic()ing isn't nice, but attach cannot fail */ 732 if (mux == NULL) 733 panic("wsdisplay_common_attach: no memory"); 734 sc->sc_input = &mux->sc_base; 735 mux->sc_base.me_dispdv = sc->sc_dev; 736 aprint_normal(" kbdmux %d", kbdmux); 737 #else 738 if (kbdmux >= 0) 739 aprint_normal(" (kbdmux ignored)"); 740 #endif 741 #endif 742 743 sc->sc_isconsole = console; 744 745 if (console) { 746 KASSERT(wsdisplay_console_initted); 747 KASSERT(wsdisplay_console_device == NULL); 748 749 sc->sc_scr[0] = wsscreen_attach(sc, 1, 0, 0, 0, 0, 0, 0); 750 wsdisplay_console_device = sc; 751 752 aprint_normal(": console (%s, %s emulation)", 753 wsdisplay_console_conf.scrdata->name, 754 wsdisplay_console_conf.wsemul->name); 755 756 #if NWSKBD > 0 757 kme = wskbd_set_console_display(sc->sc_dev, sc->sc_input); 758 if (kme != NULL) 759 aprint_normal(", using %s", device_xname(kme->me_dv)); 760 #if NWSMUX == 0 761 sc->sc_input = kme; 762 #endif 763 #endif 764 765 sc->sc_focusidx = 0; 766 sc->sc_focus = sc->sc_scr[0]; 767 start = 1; 768 769 wsdisplay_console_attached = 1; 770 } 771 aprint_normal("\n"); 772 773 #if NWSKBD > 0 && NWSMUX > 0 774 wsmux_set_display(mux, sc->sc_dev); 775 #endif 776 777 mutex_init(&sc->sc_flagsmtx, MUTEX_DEFAULT, IPL_NONE); 778 cv_init(&sc->sc_flagscv, "wssw"); 779 780 sc->sc_accessops = accessops; 781 sc->sc_accesscookie = accesscookie; 782 sc->sc_scrdata = scrdata; 783 784 #ifdef WSDISPLAY_SCROLLSUPPORT 785 sc->sc_scroll_values = wsdisplay_default_scroll_values; 786 #endif 787 788 /* 789 * Set up a number of virtual screens if wanted. The 790 * WSDISPLAYIO_ADDSCREEN ioctl is more flexible, so this code 791 * is for special cases like installation kernels. 792 */ 793 for (i = start; i < wsdisplay_defaultscreens; i++) { 794 if (wsdisplay_addscreen(sc, i, 0, 0)) 795 break; 796 } 797 798 if (i > start) 799 wsdisplay_addscreen_print(sc, start, i-start); 800 801 if (!pmf_device_register(sc->sc_dev, wsdisplay_suspend, NULL)) 802 aprint_error_dev(sc->sc_dev, "couldn't establish power handler\n"); 803 } 804 805 void 806 wsdisplay_cnattach(const struct wsscreen_descr *type, void *cookie, 807 int ccol, int crow, long defattr) 808 { 809 const struct wsemul_ops *wsemul; 810 811 KASSERT(wsdisplay_console_initted < 2); 812 KASSERT(type->nrows > 0); 813 KASSERT(type->ncols > 0); 814 KASSERT(crow < type->nrows); 815 KASSERT(ccol < type->ncols); 816 817 wsdisplay_console_conf.emulops = type->textops; 818 wsdisplay_console_conf.emulcookie = cookie; 819 wsdisplay_console_conf.scrdata = type; 820 821 wsemul = wsemul_pick(0); /* default */ 822 wsdisplay_console_conf.wsemul = wsemul; 823 wsdisplay_console_conf.wsemulcookie = (*wsemul->cnattach)(type, cookie, 824 ccol, crow, 825 defattr); 826 827 cn_tab = &wsdisplay_cons; 828 wsdisplay_console_initted = 2; 829 } 830 831 void 832 wsdisplay_preattach(const struct wsscreen_descr *type, void *cookie, 833 int ccol, int crow, long defattr) 834 { 835 const struct wsemul_ops *wsemul; 836 837 KASSERT(!wsdisplay_console_initted); 838 KASSERT(type->nrows > 0); 839 KASSERT(type->ncols > 0); 840 KASSERT(crow < type->nrows); 841 KASSERT(ccol < type->ncols); 842 843 wsdisplay_console_conf.emulops = type->textops; 844 wsdisplay_console_conf.emulcookie = cookie; 845 wsdisplay_console_conf.scrdata = type; 846 847 wsemul = wsemul_pick(0); /* default */ 848 wsdisplay_console_conf.wsemul = wsemul; 849 wsdisplay_console_conf.wsemulcookie = (*wsemul->cnattach)(type, cookie, 850 ccol, crow, 851 defattr); 852 853 cn_tab = &wsdisplay_cons; 854 wsdisplay_console_initted = 1; 855 } 856 857 /* 858 * Tty and cdevsw functions. 859 */ 860 int 861 wsdisplayopen(dev_t dev, int flag, int mode, struct lwp *l) 862 { 863 struct wsdisplay_softc *sc; 864 struct tty *tp; 865 int newopen, error; 866 struct wsscreen *scr; 867 868 sc = device_lookup_private(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 869 if (sc == NULL) /* make sure it was attached */ 870 return (ENXIO); 871 872 if (ISWSDISPLAYSTAT(dev)) { 873 wsevent_init(&sc->evar, l->l_proc); 874 return (0); 875 } 876 877 if (ISWSDISPLAYCTL(dev)) 878 return (0); 879 880 if (WSDISPLAYSCREEN(dev) >= WSDISPLAY_MAXSCREEN) 881 return (ENXIO); 882 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 883 return (ENXIO); 884 885 if (WSSCREEN_HAS_TTY(scr)) { 886 tp = scr->scr_tty; 887 tp->t_oproc = wsdisplaystart; 888 tp->t_param = wsdisplayparam; 889 tp->t_dev = dev; 890 newopen = (tp->t_state & TS_ISOPEN) == 0; 891 892 if (kauth_authorize_device_tty(l->l_cred, 893 KAUTH_DEVICE_TTY_OPEN, tp)) 894 return (EBUSY); 895 896 if (newopen) { 897 ttychars(tp); 898 tp->t_iflag = TTYDEF_IFLAG; 899 tp->t_oflag = TTYDEF_OFLAG; 900 tp->t_cflag = TTYDEF_CFLAG; 901 tp->t_lflag = TTYDEF_LFLAG; 902 tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED; 903 wsdisplayparam(tp, &tp->t_termios); 904 ttsetwater(tp); 905 } 906 tp->t_state |= TS_CARR_ON; 907 908 error = ((*tp->t_linesw->l_open)(dev, tp)); 909 if (error) 910 return (error); 911 912 if (newopen && WSSCREEN_HAS_EMULATOR(scr)) { 913 /* set window sizes as appropriate, and reset 914 the emulation */ 915 tp->t_winsize.ws_row = scr->scr_dconf->scrdata->nrows; 916 tp->t_winsize.ws_col = scr->scr_dconf->scrdata->ncols; 917 918 /* wsdisplay_set_emulation() */ 919 } 920 } 921 922 scr->scr_flags |= SCR_OPEN; 923 return (0); 924 } 925 926 int 927 wsdisplayclose(dev_t dev, int flag, int mode, struct lwp *l) 928 { 929 device_t dv; 930 struct wsdisplay_softc *sc; 931 struct tty *tp; 932 struct wsscreen *scr; 933 934 dv = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 935 sc = device_private(dv); 936 937 if (ISWSDISPLAYSTAT(dev)) { 938 wsevent_fini(&sc->evar); 939 return (0); 940 } 941 942 if (ISWSDISPLAYCTL(dev)) 943 return (0); 944 945 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 946 return (0); 947 948 if (WSSCREEN_HAS_TTY(scr)) { 949 if (scr->scr_hold_screen) { 950 int s; 951 952 /* XXX RESET KEYBOARD LEDS, etc. */ 953 s = spltty(); /* avoid conflict with keyboard */ 954 wsdisplay_kbdholdscreen(dv, 0); 955 splx(s); 956 } 957 tp = scr->scr_tty; 958 (*tp->t_linesw->l_close)(tp, flag); 959 ttyclose(tp); 960 } 961 962 if (scr->scr_syncops) 963 (*scr->scr_syncops->destroy)(scr->scr_synccookie); 964 965 if (WSSCREEN_HAS_EMULATOR(scr)) { 966 scr->scr_flags &= ~SCR_GRAPHICS; 967 (*scr->scr_dconf->wsemul->reset)(scr->scr_dconf->wsemulcookie, 968 WSEMUL_RESET); 969 if (wsdisplay_clearonclose) 970 (*scr->scr_dconf->wsemul->reset) 971 (scr->scr_dconf->wsemulcookie, 972 WSEMUL_CLEARSCREEN); 973 } 974 975 #ifdef WSDISPLAY_COMPAT_RAWKBD 976 if (scr->scr_rawkbd) { 977 int kbmode = WSKBD_TRANSLATED; 978 (void)wsdisplay_internal_ioctl(sc, scr, WSKBDIO_SETMODE, 979 (void *)&kbmode, 0, l); 980 } 981 #endif 982 983 scr->scr_flags &= ~SCR_OPEN; 984 985 return (0); 986 } 987 988 int 989 wsdisplayread(dev_t dev, struct uio *uio, int flag) 990 { 991 struct wsdisplay_softc *sc; 992 struct tty *tp; 993 struct wsscreen *scr; 994 int error; 995 996 sc = device_lookup_private(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 997 998 if (ISWSDISPLAYSTAT(dev)) { 999 error = wsevent_read(&sc->evar, uio, flag); 1000 return (error); 1001 } 1002 1003 if (ISWSDISPLAYCTL(dev)) 1004 return (0); 1005 1006 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 1007 return (ENXIO); 1008 1009 if (!WSSCREEN_HAS_TTY(scr)) 1010 return (ENODEV); 1011 1012 tp = scr->scr_tty; 1013 return ((*tp->t_linesw->l_read)(tp, uio, flag)); 1014 } 1015 1016 int 1017 wsdisplaywrite(dev_t dev, struct uio *uio, int flag) 1018 { 1019 struct wsdisplay_softc *sc; 1020 struct tty *tp; 1021 struct wsscreen *scr; 1022 1023 sc = device_lookup_private(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 1024 1025 if (ISWSDISPLAYSTAT(dev)) { 1026 return (0); 1027 } 1028 1029 if (ISWSDISPLAYCTL(dev)) 1030 return (0); 1031 1032 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 1033 return (ENXIO); 1034 1035 if (!WSSCREEN_HAS_TTY(scr)) 1036 return (ENODEV); 1037 1038 tp = scr->scr_tty; 1039 return ((*tp->t_linesw->l_write)(tp, uio, flag)); 1040 } 1041 1042 int 1043 wsdisplaypoll(dev_t dev, int events, struct lwp *l) 1044 { 1045 struct wsdisplay_softc *sc; 1046 struct tty *tp; 1047 struct wsscreen *scr; 1048 1049 sc = device_lookup_private(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 1050 1051 if (ISWSDISPLAYSTAT(dev)) 1052 return (wsevent_poll(&sc->evar, events, l)); 1053 1054 if (ISWSDISPLAYCTL(dev)) 1055 return (0); 1056 1057 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 1058 return (POLLHUP); 1059 1060 if (!WSSCREEN_HAS_TTY(scr)) 1061 return (POLLERR); 1062 1063 tp = scr->scr_tty; 1064 return ((*tp->t_linesw->l_poll)(tp, events, l)); 1065 } 1066 1067 int 1068 wsdisplaykqfilter(dev_t dev, struct knote *kn) 1069 { 1070 struct wsdisplay_softc *sc; 1071 struct wsscreen *scr; 1072 1073 sc = device_lookup_private(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 1074 1075 if (ISWSDISPLAYCTL(dev)) 1076 return (1); 1077 1078 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 1079 return (1); 1080 1081 1082 if (WSSCREEN_HAS_TTY(scr)) 1083 return (ttykqfilter(dev, kn)); 1084 else 1085 return (1); 1086 } 1087 1088 struct tty * 1089 wsdisplaytty(dev_t dev) 1090 { 1091 struct wsdisplay_softc *sc; 1092 struct wsscreen *scr; 1093 1094 sc = device_lookup_private(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 1095 1096 if (ISWSDISPLAYSTAT(dev)) 1097 panic("wsdisplaytty() on status device"); 1098 1099 if (ISWSDISPLAYCTL(dev)) 1100 panic("wsdisplaytty() on ctl device"); 1101 1102 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 1103 return NULL; 1104 1105 return (scr->scr_tty); 1106 } 1107 1108 int 1109 wsdisplayioctl(dev_t dev, u_long cmd, void *data, int flag, struct lwp *l) 1110 { 1111 device_t dv; 1112 struct wsdisplay_softc *sc; 1113 struct tty *tp; 1114 int error; 1115 struct wsscreen *scr; 1116 1117 dv = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 1118 sc = device_private(dv); 1119 1120 #ifdef WSDISPLAY_COMPAT_USL 1121 error = wsdisplay_usl_ioctl1(dv, cmd, data, flag, l); 1122 if (error != EPASSTHROUGH) 1123 return (error); 1124 #endif 1125 1126 if (ISWSDISPLAYSTAT(dev)) 1127 return (wsdisplay_stat_ioctl(sc, cmd, data, flag, l)); 1128 1129 if (ISWSDISPLAYCTL(dev)) 1130 return (wsdisplay_cfg_ioctl(sc, cmd, data, flag, l)); 1131 1132 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 1133 return (ENXIO); 1134 1135 if (WSSCREEN_HAS_TTY(scr)) { 1136 tp = scr->scr_tty; 1137 1138 /* printf("disc\n"); */ 1139 /* do the line discipline ioctls first */ 1140 error = (*tp->t_linesw->l_ioctl)(tp, cmd, data, flag, l); 1141 if (error != EPASSTHROUGH) 1142 return (error); 1143 1144 /* printf("tty\n"); */ 1145 /* then the tty ioctls */ 1146 error = ttioctl(tp, cmd, data, flag, l); 1147 if (error != EPASSTHROUGH) 1148 return (error); 1149 } 1150 1151 #ifdef WSDISPLAY_COMPAT_USL 1152 error = wsdisplay_usl_ioctl2(sc, scr, cmd, data, flag, l); 1153 if (error != EPASSTHROUGH) 1154 return (error); 1155 #endif 1156 1157 return (wsdisplay_internal_ioctl(sc, scr, cmd, data, flag, l)); 1158 } 1159 1160 int 1161 wsdisplay_param(device_t dv, u_long cmd, struct wsdisplay_param *dp) 1162 { 1163 struct wsdisplay_softc *sc = device_private(dv); 1164 return ((*sc->sc_accessops->ioctl)(sc->sc_accesscookie, 1165 sc->sc_focus->scr_dconf->emulcookie, 1166 cmd, (void *)dp, 0, NULL)); 1167 } 1168 1169 int 1170 wsdisplay_internal_ioctl(struct wsdisplay_softc *sc, struct wsscreen *scr, 1171 u_long cmd, void *data, int flag, struct lwp *l) 1172 { 1173 int error; 1174 char namebuf[16]; 1175 struct wsdisplay_font fd; 1176 #ifdef WSDISPLAY_SCROLLSUPPORT 1177 struct wsdisplay_scroll_data *ksdp, *usdp; 1178 #endif 1179 1180 #if NWSKBD > 0 1181 struct wsevsrc *inp; 1182 1183 #ifdef WSDISPLAY_COMPAT_RAWKBD 1184 switch (cmd) { 1185 case WSKBDIO_SETMODE: 1186 scr->scr_rawkbd = (*(int *)data == WSKBD_RAW); 1187 return (wsdisplay_update_rawkbd(sc, scr)); 1188 case WSKBDIO_GETMODE: 1189 *(int *)data = (scr->scr_rawkbd ? 1190 WSKBD_RAW : WSKBD_TRANSLATED); 1191 return (0); 1192 } 1193 #endif 1194 inp = sc->sc_input; 1195 if (inp == NULL) 1196 return (ENXIO); 1197 error = wsevsrc_display_ioctl(inp, cmd, data, flag, l); 1198 if (error != EPASSTHROUGH) 1199 return (error); 1200 #endif /* NWSKBD > 0 */ 1201 1202 switch (cmd) { 1203 case WSDISPLAYIO_GMODE: 1204 if (scr->scr_flags & SCR_GRAPHICS) { 1205 if (scr->scr_flags & SCR_DUMBFB) 1206 *(u_int *)data = WSDISPLAYIO_MODE_DUMBFB; 1207 else 1208 *(u_int *)data = WSDISPLAYIO_MODE_MAPPED; 1209 } else 1210 *(u_int *)data = WSDISPLAYIO_MODE_EMUL; 1211 return (0); 1212 1213 case WSDISPLAYIO_SMODE: 1214 #define d (*(int *)data) 1215 if (d != WSDISPLAYIO_MODE_EMUL && 1216 d != WSDISPLAYIO_MODE_MAPPED && 1217 d != WSDISPLAYIO_MODE_DUMBFB) 1218 return (EINVAL); 1219 1220 if (WSSCREEN_HAS_EMULATOR(scr)) { 1221 scr->scr_flags &= ~SCR_GRAPHICS; 1222 if (d == WSDISPLAYIO_MODE_MAPPED || 1223 d == WSDISPLAYIO_MODE_DUMBFB) 1224 scr->scr_flags |= SCR_GRAPHICS | 1225 ((d == WSDISPLAYIO_MODE_DUMBFB) ? SCR_DUMBFB : 0); 1226 } else if (d == WSDISPLAYIO_MODE_EMUL) 1227 return (EINVAL); 1228 1229 (void)(*sc->sc_accessops->ioctl)(sc->sc_accesscookie, 1230 scr->scr_dconf->emulcookie, cmd, data, flag, l); 1231 1232 return (0); 1233 #undef d 1234 1235 #ifdef WSDISPLAY_SCROLLSUPPORT 1236 #define SETSCROLLLINES(dstp, srcp, dfltp) \ 1237 do { \ 1238 (dstp)->fastlines = ((srcp)->which & \ 1239 WSDISPLAY_SCROLL_DOFASTLINES) ? \ 1240 (srcp)->fastlines : (dfltp)->fastlines; \ 1241 (dstp)->slowlines = ((srcp)->which & \ 1242 WSDISPLAY_SCROLL_DOSLOWLINES) ? \ 1243 (srcp)->slowlines : (dfltp)->slowlines; \ 1244 (dstp)->which = WSDISPLAY_SCROLL_DOALL; \ 1245 } while (0) 1246 1247 1248 case WSDISPLAYIO_DSSCROLL: 1249 usdp = (struct wsdisplay_scroll_data *)data; 1250 ksdp = &sc->sc_scroll_values; 1251 SETSCROLLLINES(ksdp, usdp, ksdp); 1252 return (0); 1253 1254 case WSDISPLAYIO_DGSCROLL: 1255 usdp = (struct wsdisplay_scroll_data *)data; 1256 ksdp = &sc->sc_scroll_values; 1257 SETSCROLLLINES(usdp, ksdp, ksdp); 1258 return (0); 1259 #else 1260 case WSDISPLAYIO_DSSCROLL: 1261 case WSDISPLAYIO_DGSCROLL: 1262 return ENODEV; 1263 #endif 1264 1265 case WSDISPLAYIO_SFONT: 1266 #define d ((struct wsdisplay_usefontdata *)data) 1267 if (!sc->sc_accessops->load_font) 1268 return (EINVAL); 1269 if (d->name) { 1270 error = copyinstr(d->name, namebuf, sizeof(namebuf), 0); 1271 if (error) 1272 return (error); 1273 fd.name = namebuf; 1274 } else 1275 fd.name = 0; 1276 fd.data = 0; 1277 error = (*sc->sc_accessops->load_font)(sc->sc_accesscookie, 1278 scr->scr_dconf->emulcookie, &fd); 1279 if (!error && WSSCREEN_HAS_EMULATOR(scr)) 1280 (*scr->scr_dconf->wsemul->reset) 1281 (scr->scr_dconf->wsemulcookie, WSEMUL_SYNCFONT); 1282 return (error); 1283 #undef d 1284 1285 #ifdef WSDISPLAY_CUSTOM_OUTPUT 1286 case WSDISPLAYIO_GMSGATTRS: 1287 #define d ((struct wsdisplay_msgattrs *)data) 1288 (*scr->scr_dconf->wsemul->getmsgattrs) 1289 (scr->scr_dconf->wsemulcookie, d); 1290 return (0); 1291 #undef d 1292 1293 case WSDISPLAYIO_SMSGATTRS: { 1294 #define d ((struct wsdisplay_msgattrs *)data) 1295 int i; 1296 for (i = 0; i < WSDISPLAY_MAXSCREEN; i++) 1297 if (sc->sc_scr[i] != NULL) 1298 (*sc->sc_scr[i]->scr_dconf->wsemul->setmsgattrs) 1299 (sc->sc_scr[i]->scr_dconf->wsemulcookie, 1300 sc->sc_scr[i]->scr_dconf->scrdata, 1301 d); 1302 } 1303 return (0); 1304 #undef d 1305 #else 1306 case WSDISPLAYIO_GMSGATTRS: 1307 case WSDISPLAYIO_SMSGATTRS: 1308 return (ENODEV); 1309 #endif 1310 case WSDISPLAYIO_SETVERSION: 1311 return wsevent_setversion(&sc->evar, *(int *)data); 1312 } 1313 1314 /* check ioctls for display */ 1315 return ((*sc->sc_accessops->ioctl)(sc->sc_accesscookie, 1316 scr->scr_dconf->emulcookie, cmd, data, flag, l)); 1317 } 1318 1319 int 1320 wsdisplay_stat_ioctl(struct wsdisplay_softc *sc, u_long cmd, void *data, 1321 int flag, struct lwp *l) 1322 { 1323 switch (cmd) { 1324 case WSDISPLAYIO_GETACTIVESCREEN: 1325 *(int*)data = wsdisplay_getactivescreen(sc); 1326 return (0); 1327 } 1328 1329 return (EPASSTHROUGH); 1330 } 1331 1332 int 1333 wsdisplay_cfg_ioctl(struct wsdisplay_softc *sc, u_long cmd, void *data, 1334 int flag, struct lwp *l) 1335 { 1336 int error; 1337 char *type, typebuf[16], *emul, emulbuf[16]; 1338 void *tbuf; 1339 u_int fontsz; 1340 #if defined(COMPAT_14) && NWSKBD > 0 1341 struct wsmux_device wsmuxdata; 1342 #endif 1343 #if NWSKBD > 0 1344 struct wsevsrc *inp; 1345 #endif 1346 1347 switch (cmd) { 1348 case WSDISPLAYIO_ADDSCREEN: 1349 #define d ((struct wsdisplay_addscreendata *)data) 1350 if (d->screentype) { 1351 error = copyinstr(d->screentype, typebuf, 1352 sizeof(typebuf), 0); 1353 if (error) 1354 return (error); 1355 type = typebuf; 1356 } else 1357 type = 0; 1358 if (d->emul) { 1359 error = copyinstr(d->emul, emulbuf, sizeof(emulbuf),0); 1360 if (error) 1361 return (error); 1362 emul = emulbuf; 1363 } else 1364 emul = 0; 1365 1366 if ((error = wsdisplay_addscreen(sc, d->idx, type, emul)) == 0) 1367 wsdisplay_addscreen_print(sc, d->idx, 0); 1368 return (error); 1369 #undef d 1370 case WSDISPLAYIO_DELSCREEN: 1371 #define d ((struct wsdisplay_delscreendata *)data) 1372 return (wsdisplay_delscreen(sc, d->idx, d->flags)); 1373 #undef d 1374 case WSDISPLAYIO_LDFONT: 1375 #define d ((struct wsdisplay_font *)data) 1376 if (!sc->sc_accessops->load_font) 1377 return (EINVAL); 1378 if (d->name) { 1379 error = copyinstr(d->name, typebuf, sizeof(typebuf), 0); 1380 if (error) 1381 return (error); 1382 d->name = typebuf; 1383 } else 1384 d->name = "loaded"; /* ??? */ 1385 fontsz = d->fontheight * d->stride * d->numchars; 1386 if (fontsz > WSDISPLAY_MAXFONTSZ) 1387 return (EINVAL); 1388 1389 tbuf = malloc(fontsz, M_DEVBUF, M_WAITOK); 1390 error = copyin(d->data, tbuf, fontsz); 1391 if (error) { 1392 free(tbuf, M_DEVBUF); 1393 return (error); 1394 } 1395 d->data = tbuf; 1396 error = 1397 (*sc->sc_accessops->load_font)(sc->sc_accesscookie, 0, d); 1398 free(tbuf, M_DEVBUF); 1399 #undef d 1400 return (error); 1401 1402 #if NWSKBD > 0 1403 #ifdef COMPAT_14 1404 case _O_WSDISPLAYIO_SETKEYBOARD: 1405 #define d ((struct wsdisplay_kbddata *)data) 1406 inp = sc->sc_input; 1407 if (inp == NULL) 1408 return (ENXIO); 1409 switch (d->op) { 1410 case _O_WSDISPLAY_KBD_ADD: 1411 if (d->idx == -1) { 1412 d->idx = wskbd_pickfree(); 1413 if (d->idx == -1) 1414 return (ENXIO); 1415 } 1416 wsmuxdata.type = WSMUX_KBD; 1417 wsmuxdata.idx = d->idx; 1418 return (wsevsrc_ioctl(inp, WSMUX_ADD_DEVICE, 1419 &wsmuxdata, flag, l)); 1420 case _O_WSDISPLAY_KBD_DEL: 1421 wsmuxdata.type = WSMUX_KBD; 1422 wsmuxdata.idx = d->idx; 1423 return (wsevsrc_ioctl(inp, WSMUX_REMOVE_DEVICE, 1424 &wsmuxdata, flag, l)); 1425 default: 1426 return (EINVAL); 1427 } 1428 #undef d 1429 #endif 1430 1431 case WSMUXIO_ADD_DEVICE: 1432 #define d ((struct wsmux_device *)data) 1433 if (d->idx == -1 && d->type == WSMUX_KBD) 1434 d->idx = wskbd_pickfree(); 1435 #undef d 1436 /* fall into */ 1437 case WSMUXIO_INJECTEVENT: 1438 case WSMUXIO_REMOVE_DEVICE: 1439 case WSMUXIO_LIST_DEVICES: 1440 inp = sc->sc_input; 1441 if (inp == NULL) 1442 return (ENXIO); 1443 return (wsevsrc_ioctl(inp, cmd, data, flag, l)); 1444 #endif /* NWSKBD > 0 */ 1445 1446 } 1447 return (EPASSTHROUGH); 1448 } 1449 1450 int 1451 wsdisplay_stat_inject(device_t dv, u_int type, int value) 1452 { 1453 struct wsdisplay_softc *sc = device_private(dv); 1454 struct wseventvar *evar; 1455 struct wscons_event event; 1456 1457 evar = &sc->evar; 1458 1459 if (evar == NULL) 1460 return (0); 1461 1462 if (evar->q == NULL) 1463 return (1); 1464 1465 event.type = type; 1466 event.value = value; 1467 if (wsevent_inject(evar, &event, 1) != 0) { 1468 log(LOG_WARNING, "wsdisplay: event queue overflow\n"); 1469 return (1); 1470 } 1471 1472 return (0); 1473 } 1474 1475 paddr_t 1476 wsdisplaymmap(dev_t dev, off_t offset, int prot) 1477 { 1478 struct wsdisplay_softc *sc; 1479 struct wsscreen *scr; 1480 1481 sc = device_lookup_private(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 1482 1483 if (ISWSDISPLAYSTAT(dev)) 1484 return (-1); 1485 1486 if (ISWSDISPLAYCTL(dev)) 1487 return (-1); 1488 1489 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 1490 return (-1); 1491 1492 if (!(scr->scr_flags & SCR_GRAPHICS)) 1493 return (-1); 1494 1495 /* pass mmap to display */ 1496 return ((*sc->sc_accessops->mmap)(sc->sc_accesscookie, 1497 scr->scr_dconf->emulcookie, offset, prot)); 1498 } 1499 1500 void 1501 wsdisplaystart(struct tty *tp) 1502 { 1503 struct wsdisplay_softc *sc; 1504 struct wsscreen *scr; 1505 int s, n; 1506 u_char *tbuf; 1507 1508 s = spltty(); 1509 if (tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP)) { 1510 splx(s); 1511 return; 1512 } 1513 sc = device_lookup_private(&wsdisplay_cd, WSDISPLAYUNIT(tp->t_dev)); 1514 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(tp->t_dev)]) == NULL) { 1515 splx(s); 1516 return; 1517 } 1518 1519 if (scr->scr_hold_screen) { 1520 tp->t_state |= TS_TIMEOUT; 1521 splx(s); 1522 return; 1523 } 1524 tp->t_state |= TS_BUSY; 1525 splx(s); 1526 1527 /* 1528 * Drain output from ring buffer. 1529 * The output will normally be in one contiguous chunk, but when the 1530 * ring wraps, it will be in two pieces.. one at the end of the ring, 1531 * the other at the start. For performance, rather than loop here, 1532 * we output one chunk, see if there's another one, and if so, output 1533 * it too. 1534 */ 1535 1536 n = ndqb(&tp->t_outq, 0); 1537 tbuf = tp->t_outq.c_cf; 1538 1539 if (!(scr->scr_flags & SCR_GRAPHICS)) { 1540 KASSERT(WSSCREEN_HAS_EMULATOR(scr)); 1541 (*scr->scr_dconf->wsemul->output)(scr->scr_dconf->wsemulcookie, 1542 tbuf, n, 0); 1543 } 1544 ndflush(&tp->t_outq, n); 1545 1546 if ((n = ndqb(&tp->t_outq, 0)) > 0) { 1547 tbuf = tp->t_outq.c_cf; 1548 1549 if (!(scr->scr_flags & SCR_GRAPHICS)) { 1550 KASSERT(WSSCREEN_HAS_EMULATOR(scr)); 1551 (*scr->scr_dconf->wsemul->output) 1552 (scr->scr_dconf->wsemulcookie, tbuf, n, 0); 1553 } 1554 ndflush(&tp->t_outq, n); 1555 } 1556 1557 s = spltty(); 1558 tp->t_state &= ~TS_BUSY; 1559 /* Come back if there's more to do */ 1560 if (ttypull(tp)) { 1561 tp->t_state |= TS_TIMEOUT; 1562 callout_schedule(&tp->t_rstrt_ch, (hz > 128) ? (hz / 128) : 1); 1563 } 1564 splx(s); 1565 } 1566 1567 void 1568 wsdisplaystop(struct tty *tp, int flag) 1569 { 1570 int s; 1571 1572 s = spltty(); 1573 if (ISSET(tp->t_state, TS_BUSY)) 1574 if (!ISSET(tp->t_state, TS_TTSTOP)) 1575 SET(tp->t_state, TS_FLUSH); 1576 splx(s); 1577 } 1578 1579 /* Set line parameters. */ 1580 int 1581 wsdisplayparam(struct tty *tp, struct termios *t) 1582 { 1583 1584 tp->t_ispeed = t->c_ispeed; 1585 tp->t_ospeed = t->c_ospeed; 1586 tp->t_cflag = t->c_cflag; 1587 return 0; 1588 } 1589 1590 /* 1591 * Callbacks for the emulation code. 1592 */ 1593 void 1594 wsdisplay_emulbell(void *v) 1595 { 1596 struct wsscreen *scr = v; 1597 1598 if (scr == NULL) /* console, before real attach */ 1599 return; 1600 1601 if (scr->scr_flags & SCR_GRAPHICS) /* can this happen? */ 1602 return; 1603 1604 (void) wsdisplay_internal_ioctl(scr->sc, scr, WSKBDIO_BELL, NULL, 1605 FWRITE, NULL); 1606 } 1607 1608 void 1609 wsdisplay_emulinput(void *v, const u_char *data, u_int count) 1610 { 1611 struct wsscreen *scr = v; 1612 struct tty *tp; 1613 1614 if (v == NULL) /* console, before real attach */ 1615 return; 1616 1617 if (scr->scr_flags & SCR_GRAPHICS) /* XXX can't happen */ 1618 return; 1619 if (!WSSCREEN_HAS_TTY(scr)) 1620 return; 1621 1622 tp = scr->scr_tty; 1623 while (count-- > 0) 1624 (*tp->t_linesw->l_rint)(*data++, tp); 1625 } 1626 1627 /* 1628 * Calls from the keyboard interface. 1629 */ 1630 void 1631 wsdisplay_kbdinput(device_t dv, keysym_t ks) 1632 { 1633 struct wsdisplay_softc *sc = device_private(dv); 1634 struct wsscreen *scr; 1635 const char *dp; 1636 int count; 1637 struct tty *tp; 1638 1639 KASSERT(sc != NULL); 1640 1641 scr = sc->sc_focus; 1642 1643 if (!scr || !WSSCREEN_HAS_TTY(scr)) 1644 return; 1645 1646 tp = scr->scr_tty; 1647 1648 if (KS_GROUP(ks) == KS_GROUP_Ascii) 1649 (*tp->t_linesw->l_rint)(KS_VALUE(ks), tp); 1650 else if (WSSCREEN_HAS_EMULATOR(scr)) { 1651 count = (*scr->scr_dconf->wsemul->translate) 1652 (scr->scr_dconf->wsemulcookie, ks, &dp); 1653 while (count-- > 0) 1654 (*tp->t_linesw->l_rint)(*dp++, tp); 1655 } 1656 } 1657 1658 #if defined(WSDISPLAY_COMPAT_RAWKBD) 1659 int 1660 wsdisplay_update_rawkbd(struct wsdisplay_softc *sc, struct wsscreen *scr) 1661 { 1662 #if NWSKBD > 0 1663 int s, raw, data, error; 1664 struct wsevsrc *inp; 1665 1666 s = spltty(); 1667 1668 raw = (scr ? scr->scr_rawkbd : 0); 1669 1670 if (scr != sc->sc_focus || 1671 sc->sc_rawkbd == raw) { 1672 splx(s); 1673 return (0); 1674 } 1675 1676 data = raw ? WSKBD_RAW : WSKBD_TRANSLATED; 1677 inp = sc->sc_input; 1678 if (inp == NULL) { 1679 splx(s); 1680 return (ENXIO); 1681 } 1682 error = wsevsrc_display_ioctl(inp, WSKBDIO_SETMODE, &data, 0, 0); 1683 if (!error) 1684 sc->sc_rawkbd = raw; 1685 splx(s); 1686 return (error); 1687 #else 1688 return (0); 1689 #endif 1690 } 1691 #endif 1692 1693 static void 1694 wsdisplay_switch3_cb(void *arg, int error, int waitok) 1695 { 1696 device_t dv = arg; 1697 1698 wsdisplay_switch3(dv, error, waitok); 1699 } 1700 1701 static int 1702 wsdisplay_switch3(device_t dv, int error, int waitok) 1703 { 1704 struct wsdisplay_softc *sc = device_private(dv); 1705 int no; 1706 struct wsscreen *scr; 1707 1708 if (!(sc->sc_flags & SC_SWITCHPENDING)) { 1709 aprint_error_dev(dv, "wsdisplay_switch3: not switching\n"); 1710 return (EINVAL); 1711 } 1712 1713 no = sc->sc_screenwanted; 1714 if (no < 0 || no >= WSDISPLAY_MAXSCREEN) 1715 panic("wsdisplay_switch3: invalid screen %d", no); 1716 scr = sc->sc_scr[no]; 1717 if (!scr) { 1718 aprint_error_dev(dv, 1719 "wsdisplay_switch3: screen %d disappeared\n", no); 1720 error = ENXIO; 1721 } 1722 1723 if (error) { 1724 /* try to recover, avoid recursion */ 1725 1726 if (sc->sc_oldscreen == WSDISPLAY_NULLSCREEN) { 1727 aprint_error_dev(dv, "wsdisplay_switch3: giving up\n"); 1728 sc->sc_focus = 0; 1729 #ifdef WSDISPLAY_COMPAT_RAWKBD 1730 wsdisplay_update_rawkbd(sc, 0); 1731 #endif 1732 sc->sc_flags &= ~SC_SWITCHPENDING; 1733 return (error); 1734 } 1735 1736 sc->sc_screenwanted = sc->sc_oldscreen; 1737 sc->sc_oldscreen = WSDISPLAY_NULLSCREEN; 1738 return (wsdisplay_switch1(dv, 0, waitok)); 1739 } 1740 1741 if (scr->scr_syncops && !error) 1742 sc->sc_flags |= SC_XATTACHED; 1743 1744 sc->sc_flags &= ~SC_SWITCHPENDING; 1745 1746 if (!error && (scr->scr_flags & SCR_WAITACTIVE)) 1747 wakeup(scr); 1748 return (error); 1749 } 1750 1751 static void 1752 wsdisplay_switch2_cb(void *arg, int error, int waitok) 1753 { 1754 device_t dv = arg; 1755 1756 wsdisplay_switch2(dv, error, waitok); 1757 } 1758 1759 static int 1760 wsdisplay_switch2(device_t dv, int error, int waitok) 1761 { 1762 struct wsdisplay_softc *sc = device_private(dv); 1763 int no; 1764 struct wsscreen *scr; 1765 1766 if (!(sc->sc_flags & SC_SWITCHPENDING)) { 1767 aprint_error_dev(dv, "wsdisplay_switch2: not switching\n"); 1768 return (EINVAL); 1769 } 1770 1771 no = sc->sc_screenwanted; 1772 if (no < 0 || no >= WSDISPLAY_MAXSCREEN) 1773 panic("wsdisplay_switch2: invalid screen %d", no); 1774 scr = sc->sc_scr[no]; 1775 if (!scr) { 1776 aprint_error_dev(dv, 1777 "wsdisplay_switch2: screen %d disappeared\n", no); 1778 error = ENXIO; 1779 } 1780 1781 if (error) { 1782 /* try to recover, avoid recursion */ 1783 1784 if (sc->sc_oldscreen == WSDISPLAY_NULLSCREEN) { 1785 aprint_error_dev(dv, "wsdisplay_switch2: giving up\n"); 1786 sc->sc_focus = 0; 1787 sc->sc_flags &= ~SC_SWITCHPENDING; 1788 return (error); 1789 } 1790 1791 sc->sc_screenwanted = sc->sc_oldscreen; 1792 sc->sc_oldscreen = WSDISPLAY_NULLSCREEN; 1793 return (wsdisplay_switch1(dv, 0, waitok)); 1794 } 1795 1796 sc->sc_focusidx = no; 1797 sc->sc_focus = scr; 1798 1799 #ifdef WSDISPLAY_COMPAT_RAWKBD 1800 (void) wsdisplay_update_rawkbd(sc, scr); 1801 #endif 1802 /* keyboard map??? */ 1803 1804 if (scr->scr_syncops && 1805 !(sc->sc_isconsole && wsdisplay_cons_pollmode)) { 1806 error = (*scr->scr_syncops->attach)(scr->scr_synccookie, waitok, 1807 wsdisplay_switch3_cb, dv); 1808 if (error == EAGAIN) { 1809 /* switch will be done asynchronously */ 1810 return (0); 1811 } 1812 } 1813 1814 return (wsdisplay_switch3(dv, error, waitok)); 1815 } 1816 1817 static void 1818 wsdisplay_switch1_cb(void *arg, int error, int waitok) 1819 { 1820 device_t dv = arg; 1821 1822 wsdisplay_switch1(dv, error, waitok); 1823 } 1824 1825 static int 1826 wsdisplay_switch1(device_t dv, int error, int waitok) 1827 { 1828 struct wsdisplay_softc *sc = device_private(dv); 1829 int no; 1830 struct wsscreen *scr; 1831 1832 if (!(sc->sc_flags & SC_SWITCHPENDING)) { 1833 aprint_error_dev(dv, "wsdisplay_switch1: not switching\n"); 1834 return (EINVAL); 1835 } 1836 1837 no = sc->sc_screenwanted; 1838 if (no == WSDISPLAY_NULLSCREEN) { 1839 sc->sc_flags &= ~SC_SWITCHPENDING; 1840 if (!error) { 1841 sc->sc_flags &= ~SC_XATTACHED; 1842 sc->sc_focus = 0; 1843 } 1844 wakeup(sc); 1845 return (error); 1846 } 1847 if (no < 0 || no >= WSDISPLAY_MAXSCREEN) 1848 panic("wsdisplay_switch1: invalid screen %d", no); 1849 scr = sc->sc_scr[no]; 1850 if (!scr) { 1851 aprint_error_dev(dv, "wsdisplay_switch1: screen %d disappeared\n", no); 1852 error = ENXIO; 1853 } 1854 1855 if (error) { 1856 sc->sc_flags &= ~SC_SWITCHPENDING; 1857 return (error); 1858 } 1859 1860 sc->sc_flags &= ~SC_XATTACHED; 1861 1862 error = (*sc->sc_accessops->show_screen)(sc->sc_accesscookie, 1863 scr->scr_dconf->emulcookie, 1864 waitok, 1865 sc->sc_isconsole && wsdisplay_cons_pollmode ? 0 : wsdisplay_switch2_cb, dv); 1866 if (error == EAGAIN) { 1867 /* switch will be done asynchronously */ 1868 return (0); 1869 } 1870 1871 return (wsdisplay_switch2(dv, error, waitok)); 1872 } 1873 1874 int 1875 wsdisplay_switch(device_t dv, int no, int waitok) 1876 { 1877 struct wsdisplay_softc *sc = device_private(dv); 1878 int s, res = 0; 1879 struct wsscreen *scr; 1880 1881 if (no != WSDISPLAY_NULLSCREEN) { 1882 if ((no < 0 || no >= WSDISPLAY_MAXSCREEN)) 1883 return (EINVAL); 1884 if (sc->sc_scr[no] == NULL) 1885 return (ENXIO); 1886 } 1887 1888 wsdisplay_stat_inject(dv, WSCONS_EVENT_SCREEN_SWITCH, no); 1889 1890 s = spltty(); 1891 1892 if ((sc->sc_focus && no == sc->sc_focusidx) || 1893 (sc->sc_focus == NULL && no == WSDISPLAY_NULLSCREEN)) { 1894 splx(s); 1895 return (0); 1896 } 1897 1898 if (sc->sc_flags & SC_SWITCHPENDING) { 1899 splx(s); 1900 return (EBUSY); 1901 } 1902 1903 sc->sc_flags |= SC_SWITCHPENDING; 1904 sc->sc_screenwanted = no; 1905 1906 splx(s); 1907 1908 scr = sc->sc_focus; 1909 if (!scr) { 1910 sc->sc_oldscreen = WSDISPLAY_NULLSCREEN; 1911 return (wsdisplay_switch1(dv, 0, waitok)); 1912 } else 1913 sc->sc_oldscreen = sc->sc_focusidx; 1914 1915 if (scr->scr_syncops) { 1916 if (!(sc->sc_flags & SC_XATTACHED) || 1917 (sc->sc_isconsole && wsdisplay_cons_pollmode)) { 1918 /* nothing to do here */ 1919 return (wsdisplay_switch1(dv, 0, waitok)); 1920 } 1921 res = (*scr->scr_syncops->detach)(scr->scr_synccookie, waitok, 1922 wsdisplay_switch1_cb, dv); 1923 if (res == EAGAIN) { 1924 /* switch will be done asynchronously */ 1925 return (0); 1926 } 1927 } else if (scr->scr_flags & SCR_GRAPHICS) { 1928 /* no way to save state */ 1929 res = EBUSY; 1930 } 1931 1932 return (wsdisplay_switch1(dv, res, waitok)); 1933 } 1934 1935 void 1936 wsdisplay_reset(device_t dv, enum wsdisplay_resetops op) 1937 { 1938 struct wsdisplay_softc *sc = device_private(dv); 1939 struct wsscreen *scr; 1940 1941 KASSERT(sc != NULL); 1942 scr = sc->sc_focus; 1943 1944 if (!scr) 1945 return; 1946 1947 switch (op) { 1948 case WSDISPLAY_RESETEMUL: 1949 if (!WSSCREEN_HAS_EMULATOR(scr)) 1950 break; 1951 (*scr->scr_dconf->wsemul->reset)(scr->scr_dconf->wsemulcookie, 1952 WSEMUL_RESET); 1953 break; 1954 case WSDISPLAY_RESETCLOSE: 1955 wsdisplay_closescreen(sc, scr); 1956 break; 1957 } 1958 } 1959 1960 /* 1961 * Interface for (external) VT switch / process synchronization code 1962 */ 1963 int 1964 wsscreen_attach_sync(struct wsscreen *scr, const struct wscons_syncops *ops, 1965 void *cookie) 1966 { 1967 if (scr->scr_syncops) { 1968 /* 1969 * The screen is already claimed. 1970 * Check if the owner is still alive. 1971 */ 1972 if ((*scr->scr_syncops->check)(scr->scr_synccookie)) 1973 return (EBUSY); 1974 } 1975 scr->scr_syncops = ops; 1976 scr->scr_synccookie = cookie; 1977 if (scr == scr->sc->sc_focus) 1978 scr->sc->sc_flags |= SC_XATTACHED; 1979 return (0); 1980 } 1981 1982 int 1983 wsscreen_detach_sync(struct wsscreen *scr) 1984 { 1985 if (!scr->scr_syncops) 1986 return (EINVAL); 1987 scr->scr_syncops = 0; 1988 if (scr == scr->sc->sc_focus) 1989 scr->sc->sc_flags &= ~SC_XATTACHED; 1990 return (0); 1991 } 1992 1993 int 1994 wsscreen_lookup_sync(struct wsscreen *scr, 1995 const struct wscons_syncops *ops, /* used as ID */ 1996 void **cookiep) 1997 { 1998 if (!scr->scr_syncops || ops != scr->scr_syncops) 1999 return (EINVAL); 2000 *cookiep = scr->scr_synccookie; 2001 return (0); 2002 } 2003 2004 /* 2005 * Interface to virtual screen stuff 2006 */ 2007 int 2008 wsdisplay_maxscreenidx(struct wsdisplay_softc *sc) 2009 { 2010 return (WSDISPLAY_MAXSCREEN - 1); 2011 } 2012 2013 int 2014 wsdisplay_screenstate(struct wsdisplay_softc *sc, int idx) 2015 { 2016 if (idx < 0 || idx >= WSDISPLAY_MAXSCREEN) 2017 return (EINVAL); 2018 if (!sc->sc_scr[idx]) 2019 return (ENXIO); 2020 return ((sc->sc_scr[idx]->scr_flags & SCR_OPEN) ? EBUSY : 0); 2021 } 2022 2023 int 2024 wsdisplay_getactivescreen(struct wsdisplay_softc *sc) 2025 { 2026 return (sc->sc_focus ? sc->sc_focusidx : WSDISPLAY_NULLSCREEN); 2027 } 2028 2029 int 2030 wsscreen_switchwait(struct wsdisplay_softc *sc, int no) 2031 { 2032 struct wsscreen *scr; 2033 int s, res = 0; 2034 2035 if (no == WSDISPLAY_NULLSCREEN) { 2036 s = spltty(); 2037 while (sc->sc_focus && res == 0) { 2038 res = tsleep(sc, PCATCH, "wswait", 0); 2039 } 2040 splx(s); 2041 return (res); 2042 } 2043 2044 if (no < 0 || no >= WSDISPLAY_MAXSCREEN) 2045 return (ENXIO); 2046 scr = sc->sc_scr[no]; 2047 if (!scr) 2048 return (ENXIO); 2049 2050 s = spltty(); 2051 if (scr != sc->sc_focus) { 2052 scr->scr_flags |= SCR_WAITACTIVE; 2053 res = tsleep(scr, PCATCH, "wswait", 0); 2054 if (scr != sc->sc_scr[no]) 2055 res = ENXIO; /* disappeared in the meantime */ 2056 else 2057 scr->scr_flags &= ~SCR_WAITACTIVE; 2058 } 2059 splx(s); 2060 return (res); 2061 } 2062 2063 void 2064 wsdisplay_kbdholdscreen(device_t dv, int hold) 2065 { 2066 struct wsdisplay_softc *sc = device_private(dv); 2067 struct wsscreen *scr; 2068 2069 scr = sc->sc_focus; 2070 2071 if (!scr) 2072 return; 2073 2074 if (hold) 2075 scr->scr_hold_screen = 1; 2076 else { 2077 scr->scr_hold_screen = 0; 2078 callout_schedule(&scr->scr_tty->t_rstrt_ch, 0); 2079 } 2080 } 2081 2082 #if NWSKBD > 0 2083 void 2084 wsdisplay_set_console_kbd(struct wsevsrc *src) 2085 { 2086 if (wsdisplay_console_device == NULL) { 2087 src->me_dispdv = NULL; 2088 return; 2089 } 2090 #if NWSMUX > 0 2091 if (wsmux_attach_sc((struct wsmux_softc *) 2092 wsdisplay_console_device->sc_input, src)) { 2093 src->me_dispdv = NULL; 2094 return; 2095 } 2096 #else 2097 wsdisplay_console_device->sc_input = src; 2098 #endif 2099 src->me_dispdv = wsdisplay_console_device->sc_dev; 2100 } 2101 #endif /* NWSKBD > 0 */ 2102 2103 /* 2104 * Console interface. 2105 */ 2106 void 2107 wsdisplay_cnputc(dev_t dev, int i) 2108 { 2109 struct wsscreen_internal *dc; 2110 u_char c = i; 2111 2112 if (!wsdisplay_console_initted) 2113 return; 2114 2115 if ((wsdisplay_console_device != NULL) && 2116 (wsdisplay_console_device->sc_scr[0] != NULL) && 2117 (wsdisplay_console_device->sc_scr[0]->scr_flags & SCR_GRAPHICS)) 2118 return; 2119 2120 dc = &wsdisplay_console_conf; 2121 (*dc->wsemul->output)(dc->wsemulcookie, &c, 1, 1); 2122 } 2123 2124 static int 2125 wsdisplay_getc_dummy(dev_t dev) 2126 { 2127 /* panic? */ 2128 return (0); 2129 } 2130 2131 static void 2132 wsdisplay_pollc(dev_t dev, int on) 2133 { 2134 2135 wsdisplay_cons_pollmode = on; 2136 2137 /* notify to fb drivers */ 2138 if (wsdisplay_console_device != NULL && 2139 wsdisplay_console_device->sc_accessops->pollc != NULL) 2140 (*wsdisplay_console_device->sc_accessops->pollc) 2141 (wsdisplay_console_device->sc_accesscookie, on); 2142 2143 /* notify to kbd drivers */ 2144 if (wsdisplay_cons_kbd_pollc) 2145 (*wsdisplay_cons_kbd_pollc)(NODEV, on); 2146 } 2147 2148 void 2149 wsdisplay_set_cons_kbd(int (*get)(dev_t), void (*poll)(dev_t, int), 2150 void (*bell)(dev_t, u_int, u_int, u_int)) 2151 { 2152 wsdisplay_cons.cn_getc = get; 2153 wsdisplay_cons.cn_bell = bell; 2154 wsdisplay_cons_kbd_pollc = poll; 2155 } 2156 2157 void 2158 wsdisplay_unset_cons_kbd(void) 2159 { 2160 wsdisplay_cons.cn_getc = wsdisplay_getc_dummy; 2161 wsdisplay_cons.cn_bell = NULL; 2162 wsdisplay_cons_kbd_pollc = 0; 2163 } 2164
Indexes created Thu Oct 23 22:10:10 GMT 2025