wsdisplay.c revision 1.27
1 /* $NetBSD: wsdisplay.c,v 1.27 1999/08/14 14:40:08 augustss 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 static const char _copyright[] __attribute__ ((unused)) = 34 "Copyright (c) 1996, 1997 Christopher G. Demetriou. All rights reserved."; 35 static const char _rcsid[] __attribute__ ((unused)) = 36 "$NetBSD: wsdisplay.c,v 1.27 1999/08/14 14:40:08 augustss Exp $"; 37 38 #include <sys/param.h> 39 #include <sys/conf.h> 40 #include <sys/device.h> 41 #include <sys/ioctl.h> 42 #include <sys/kernel.h> 43 #include <sys/proc.h> 44 #include <sys/malloc.h> 45 #include <sys/syslog.h> 46 #include <sys/systm.h> 47 #include <sys/tty.h> 48 #include <sys/signalvar.h> 49 #include <sys/errno.h> 50 #include <sys/fcntl.h> 51 #include <sys/vnode.h> 52 53 #include <dev/wscons/wsconsio.h> 54 #include <dev/wscons/wsdisplayvar.h> 55 #include <dev/wscons/wsksymvar.h> 56 #include <dev/wscons/wsksymdef.h> 57 #include <dev/wscons/wsemulvar.h> 58 #include <dev/wscons/wscons_callbacks.h> 59 #include <dev/cons.h> 60 61 #include "opt_wsdisplay_compat.h" 62 #include "opt_compat_netbsd.h" 63 #include "wskbd.h" 64 #include "wsmux.h" 65 66 #if NWSKBD > 0 67 #include <dev/wscons/wseventvar.h> 68 #include <dev/wscons/wsmuxvar.h> 69 #endif 70 71 struct wsscreen_internal { 72 const struct wsdisplay_emulops *emulops; 73 void *emulcookie; 74 75 const struct wsscreen_descr *scrdata; 76 77 const struct wsemul_ops *wsemul; 78 void *wsemulcookie; 79 }; 80 81 struct wsscreen { 82 struct wsscreen_internal *scr_dconf; 83 84 struct tty *scr_tty; 85 int scr_hold_screen; /* hold tty output */ 86 87 int scr_flags; 88 #define SCR_OPEN 1 /* is it open? */ 89 #define SCR_WAITACTIVE 2 /* someone waiting on activation */ 90 #define SCR_GRAPHICS 4 /* graphics mode, no text (emulation) output */ 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 __P((struct wsdisplay_softc *, int, 102 const char *, 103 const struct wsscreen_descr *, void *, 104 int, int, long)); 105 void wsscreen_detach __P((struct wsscreen *)); 106 static const struct wsscreen_descr * 107 wsdisplay_screentype_pick __P((const struct wsscreen_list *, char *)); 108 int wsdisplay_addscreen __P((struct wsdisplay_softc *, int, char *, char *)); 109 static void wsdisplay_closescreen __P((struct wsdisplay_softc *, 110 struct wsscreen *)); 111 int wsdisplay_delscreen __P((struct wsdisplay_softc *, int, int)); 112 113 #define WSDISPLAY_MAXSCREEN 8 114 115 struct wsdisplay_softc { 116 struct device sc_dv; 117 118 const struct wsdisplay_accessops *sc_accessops; 119 void *sc_accesscookie; 120 121 const struct wsscreen_list *sc_scrdata; 122 123 struct wsscreen *sc_scr[WSDISPLAY_MAXSCREEN]; 124 int sc_focusidx; 125 struct wsscreen *sc_focus; 126 127 int sc_isconsole; 128 129 int sc_flags; 130 #define SC_SWITCHPENDING 1 131 int sc_screenwanted, sc_oldscreen; /* valid with SC_SWITCHPENDING */ 132 133 #if NWSKBD > 0 134 struct wsmux_softc *sc_muxdv; 135 #ifdef WSDISPLAY_COMPAT_RAWKBD 136 int sc_rawkbd; 137 #endif 138 #endif /* NWSKBD > 0 */ 139 }; 140 141 extern struct cfdriver wsdisplay_cd; 142 143 /* Autoconfiguration definitions. */ 144 static int wsdisplay_emul_match __P((struct device *, struct cfdata *, 145 void *)); 146 static void wsdisplay_emul_attach __P((struct device *, struct device *, 147 void *)); 148 static int wsdisplay_noemul_match __P((struct device *, struct cfdata *, 149 void *)); 150 static void wsdisplay_noemul_attach __P((struct device *, struct device *, 151 void *)); 152 153 struct cfattach wsdisplay_emul_ca = { 154 sizeof (struct wsdisplay_softc), 155 wsdisplay_emul_match, 156 wsdisplay_emul_attach, 157 }; 158 159 struct cfattach wsdisplay_noemul_ca = { 160 sizeof (struct wsdisplay_softc), 161 wsdisplay_noemul_match, 162 wsdisplay_noemul_attach, 163 }; 164 165 /* Exported tty- and cdevsw-related functions. */ 166 cdev_decl(wsdisplay); 167 168 static void wsdisplaystart __P((struct tty *)); 169 static int wsdisplayparam __P((struct tty *, struct termios *)); 170 171 172 /* Internal macros, functions, and variables. */ 173 #define SET(t, f) (t) |= (f) 174 #define CLR(t, f) (t) &= ~(f) 175 #define ISSET(t, f) ((t) & (f)) 176 177 #define WSDISPLAYUNIT(dev) (minor(dev) >> 8) 178 #define WSDISPLAYSCREEN(dev) (minor(dev) & 0xff) 179 #define ISWSDISPLAYCTL(dev) (WSDISPLAYSCREEN(dev) == 255) 180 #define WSDISPLAYMINOR(unit, screen) (((unit) << 8) | (screen)) 181 182 #define WSSCREEN_HAS_EMULATOR(scr) ((scr)->scr_dconf->wsemul != NULL) 183 #define WSSCREEN_HAS_TTY(scr) ((scr)->scr_tty != NULL) 184 185 static void wsdisplay_common_attach __P((struct wsdisplay_softc *sc, 186 int console, const struct wsscreen_list *, 187 const struct wsdisplay_accessops *accessops, 188 void *accesscookie)); 189 190 #ifdef WSDISPLAY_COMPAT_RAWKBD 191 int wsdisplay_update_rawkbd __P((struct wsdisplay_softc *, 192 struct wsscreen *)); 193 #endif 194 195 static int wsdisplay_console_initted; 196 static struct wsdisplay_softc *wsdisplay_console_device; 197 static struct wsscreen_internal wsdisplay_console_conf; 198 199 static int wsdisplay_getc_dummy __P((dev_t)); 200 static void wsdisplay_pollc_dummy __P((dev_t, int)); 201 202 static struct consdev wsdisplay_cons = { 203 NULL, NULL, wsdisplay_getc_dummy, wsdisplay_cnputc, 204 wsdisplay_pollc_dummy, NODEV, CN_NORMAL 205 }; 206 207 int wsdisplay_switch1 __P((void *, int, int)); 208 int wsdisplay_switch3 __P((void *, int, int)); 209 210 int wsdisplay_clearonclose; 211 212 struct wsscreen * 213 wsscreen_attach(sc, console, emul, type, cookie, ccol, crow, defattr) 214 struct wsdisplay_softc *sc; 215 int console; 216 const char *emul; 217 const struct wsscreen_descr *type; 218 void *cookie; 219 int ccol, crow; 220 long defattr; 221 { 222 struct wsscreen_internal *dconf; 223 struct wsscreen *scr; 224 225 scr = malloc(sizeof(struct wsscreen), M_DEVBUF, M_WAITOK); 226 if (!scr) 227 return (NULL); 228 229 if (console) { 230 dconf = &wsdisplay_console_conf; 231 /* 232 * If there's an emulation, tell it about the callback argument. 233 * The other stuff is already there. 234 */ 235 if (dconf->wsemul != NULL) 236 (*dconf->wsemul->attach)(1, 0, 0, 0, 0, scr, 0); 237 } else { /* not console */ 238 dconf = malloc(sizeof(struct wsscreen_internal), 239 M_DEVBUF, M_NOWAIT); 240 dconf->emulops = type->textops; 241 dconf->emulcookie = cookie; 242 if (dconf->emulops) { 243 dconf->wsemul = wsemul_pick(emul); 244 if (dconf->wsemul == NULL) { 245 free(dconf, M_DEVBUF); 246 free(scr, M_DEVBUF); 247 return (NULL); 248 } 249 dconf->wsemulcookie = 250 (*dconf->wsemul->attach)(0, type, cookie, 251 ccol, crow, scr, defattr); 252 } else 253 dconf->wsemul = NULL; 254 dconf->scrdata = type; 255 } 256 257 scr->scr_dconf = dconf; 258 259 scr->scr_tty = ttymalloc(); 260 tty_attach(scr->scr_tty); 261 scr->scr_hold_screen = 0; 262 if (WSSCREEN_HAS_EMULATOR(scr)) 263 scr->scr_flags = 0; 264 else 265 scr->scr_flags = SCR_GRAPHICS; 266 267 scr->scr_syncops = 0; 268 scr->sc = sc; 269 #ifdef WSDISPLAY_COMPAT_RAWKBD 270 scr->scr_rawkbd = 0; 271 #endif 272 return (scr); 273 } 274 275 void 276 wsscreen_detach(scr) 277 struct wsscreen *scr; 278 { 279 int ccol, crow; /* XXX */ 280 281 if (WSSCREEN_HAS_TTY(scr)) { 282 tty_detach(scr->scr_tty); 283 ttyfree(scr->scr_tty); 284 } 285 if (WSSCREEN_HAS_EMULATOR(scr)) 286 (*scr->scr_dconf->wsemul->detach)(scr->scr_dconf->wsemulcookie, 287 &ccol, &crow); 288 free(scr->scr_dconf, M_DEVBUF); 289 free(scr, M_DEVBUF); 290 } 291 292 static const struct wsscreen_descr * 293 wsdisplay_screentype_pick(scrdata, name) 294 const struct wsscreen_list *scrdata; 295 char *name; 296 { 297 int i; 298 const struct wsscreen_descr *scr; 299 300 KASSERT(scrdata->nscreens > 0); 301 302 if (name == NULL) 303 return (scrdata->screens[0]); 304 305 for (i = 0; i < scrdata->nscreens; i++) { 306 scr = scrdata->screens[i]; 307 if (!strcmp(name, scr->name)) 308 return (scr); 309 } 310 311 return (0); 312 } 313 314 int 315 wsdisplay_addscreen(sc, idx, screentype, emul) 316 struct wsdisplay_softc *sc; 317 int idx; 318 char *screentype, *emul; 319 { 320 const struct wsscreen_descr *scrdesc; 321 int error; 322 void *cookie; 323 int ccol, crow; 324 long defattr; 325 struct wsscreen *scr; 326 int s; 327 328 if (idx < 0 || idx >= WSDISPLAY_MAXSCREEN) 329 return (EINVAL); 330 if (sc->sc_scr[idx] != NULL) 331 return (EBUSY); 332 333 scrdesc = wsdisplay_screentype_pick(sc->sc_scrdata, screentype); 334 if (!scrdesc) 335 return (ENXIO); 336 error = (*sc->sc_accessops->alloc_screen)(sc->sc_accesscookie, 337 scrdesc, &cookie, &ccol, &crow, &defattr); 338 if (error) 339 return (error); 340 341 scr = wsscreen_attach(sc, 0, emul, scrdesc, 342 cookie, ccol, crow, defattr); 343 if (scr == NULL) { 344 (*sc->sc_accessops->free_screen)(sc->sc_accesscookie, 345 cookie); 346 return (ENXIO); 347 } 348 349 sc->sc_scr[idx] = scr; 350 351 printf("%s: screen %d added (%s", sc->sc_dv.dv_xname, idx, 352 scrdesc->name); 353 if (WSSCREEN_HAS_EMULATOR(scr)) 354 printf(", %s emulation", scr->scr_dconf->wsemul->name); 355 printf(")\n"); 356 357 /* if no screen has focus yet, activate the first we get */ 358 s = spltty(); 359 if (!sc->sc_focus) { 360 (*sc->sc_accessops->show_screen)(sc->sc_accesscookie, 361 scr->scr_dconf->emulcookie); 362 sc->sc_focusidx = idx; 363 sc->sc_focus = scr; 364 } 365 splx(s); 366 return (0); 367 } 368 369 static void 370 wsdisplay_closescreen(sc, scr) 371 struct wsdisplay_softc *sc; 372 struct wsscreen *scr; 373 { 374 int maj, mn, idx; 375 376 /* hangup */ 377 if (WSSCREEN_HAS_TTY(scr)) { 378 struct tty *tp = scr->scr_tty; 379 (*linesw[tp->t_line].l_modem)(tp, 0); 380 } 381 382 /* locate the major number */ 383 for (maj = 0; maj < nchrdev; maj++) 384 if (cdevsw[maj].d_open == wsdisplayopen) 385 break; 386 /* locate the screen index */ 387 for (idx = 0; idx < WSDISPLAY_MAXSCREEN; idx++) 388 if (scr == sc->sc_scr[idx]) 389 break; 390 #ifdef DIAGNOSTIC 391 if (idx == WSDISPLAY_MAXSCREEN) 392 panic("wsdisplay_forceclose: bad screen"); 393 #endif 394 395 /* nuke the vnodes */ 396 mn = WSDISPLAYMINOR(sc->sc_dv.dv_unit, idx); 397 vdevgone(maj, mn, mn, VCHR); 398 } 399 400 int 401 wsdisplay_delscreen(sc, idx, flags) 402 struct wsdisplay_softc *sc; 403 int idx, flags; 404 { 405 struct wsscreen *scr; 406 int s; 407 void *cookie; 408 409 if (idx < 0 || idx >= WSDISPLAY_MAXSCREEN) 410 return (EINVAL); 411 scr = sc->sc_scr[idx]; 412 if (!scr) 413 return (ENXIO); 414 415 if (scr->scr_dconf == &wsdisplay_console_conf || 416 scr->scr_syncops || 417 ((scr->scr_flags & SCR_OPEN) && !(flags & WSDISPLAY_DELSCR_FORCE))) 418 return(EBUSY); 419 420 wsdisplay_closescreen(sc, scr); 421 422 /* 423 * delete pointers, so neither device entries 424 * nor keyboard input can reference it anymore 425 */ 426 s = spltty(); 427 if (sc->sc_focus == scr) { 428 sc->sc_focus = 0; 429 #ifdef WSDISPLAY_COMPAT_RAWKBD 430 wsdisplay_update_rawkbd(sc, 0); 431 #endif 432 } 433 sc->sc_scr[idx] = 0; 434 splx(s); 435 436 /* 437 * Wake up processes waiting for the screen to 438 * be activated. Sleepers must check whether 439 * the screen still exists. 440 */ 441 if (scr->scr_flags & SCR_WAITACTIVE) 442 wakeup(scr); 443 444 /* save a reference to the graphics screen */ 445 cookie = scr->scr_dconf->emulcookie; 446 447 wsscreen_detach(scr); 448 449 (*sc->sc_accessops->free_screen)(sc->sc_accesscookie, 450 cookie); 451 452 printf("%s: screen %d deleted\n", sc->sc_dv.dv_xname, idx); 453 return (0); 454 } 455 456 /* 457 * Autoconfiguration functions. 458 */ 459 int 460 wsdisplay_emul_match(parent, match, aux) 461 struct device *parent; 462 struct cfdata *match; 463 void *aux; 464 { 465 struct wsemuldisplaydev_attach_args *ap = aux; 466 467 if (match->wsemuldisplaydevcf_console != 468 WSEMULDISPLAYDEVCF_CONSOLE_UNK) { 469 /* 470 * If console-ness of device specified, either match 471 * exactly (at high priority), or fail. 472 */ 473 if (match->wsemuldisplaydevcf_console != 0 && 474 ap->console != 0) 475 return (10); 476 else 477 return (0); 478 } 479 480 /* If console-ness unspecified, it wins. */ 481 return (1); 482 } 483 484 void 485 wsdisplay_emul_attach(parent, self, aux) 486 struct device *parent, *self; 487 void *aux; 488 { 489 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)self; 490 struct wsemuldisplaydev_attach_args *ap = aux; 491 492 wsdisplay_common_attach(sc, ap->console, ap->scrdata, 493 ap->accessops, ap->accesscookie); 494 495 if (ap->console) { 496 int maj; 497 498 /* locate the major number */ 499 for (maj = 0; maj < nchrdev; maj++) 500 if (cdevsw[maj].d_open == wsdisplayopen) 501 break; 502 503 cn_tab->cn_dev = makedev(maj, WSDISPLAYMINOR(self->dv_unit, 0)); 504 } 505 } 506 507 /* Print function (for parent devices). */ 508 int 509 wsemuldisplaydevprint(aux, pnp) 510 void *aux; 511 const char *pnp; 512 { 513 #if 0 /* -Wunused */ 514 struct wsemuldisplaydev_attach_args *ap = aux; 515 #endif 516 517 if (pnp) 518 printf("wsdisplay at %s", pnp); 519 #if 0 /* don't bother; it's ugly */ 520 printf(" console %d", ap->console); 521 #endif 522 523 return (UNCONF); 524 } 525 526 int 527 wsdisplay_noemul_match(parent, match, aux) 528 struct device *parent; 529 struct cfdata *match; 530 void *aux; 531 { 532 #if 0 /* -Wunused */ 533 struct wsdisplaydev_attach_args *ap = aux; 534 #endif 535 536 /* Always match. */ 537 return (1); 538 } 539 540 void 541 wsdisplay_noemul_attach(parent, self, aux) 542 struct device *parent, *self; 543 void *aux; 544 { 545 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)self; 546 struct wsdisplaydev_attach_args *ap = aux; 547 548 wsdisplay_common_attach(sc, 0, NULL, ap->accessops, ap->accesscookie); 549 } 550 551 /* Print function (for parent devices). */ 552 int 553 wsdisplaydevprint(aux, pnp) 554 void *aux; 555 const char *pnp; 556 { 557 #if 0 /* -Wunused */ 558 struct wsdisplaydev_attach_args *ap = aux; 559 #endif 560 561 if (pnp) 562 printf("wsdisplay at %s", pnp); 563 564 return (UNCONF); 565 } 566 567 static void 568 wsdisplay_common_attach(sc, console, scrdata, accessops, accesscookie) 569 struct wsdisplay_softc *sc; 570 int console; 571 const struct wsscreen_list *scrdata; 572 const struct wsdisplay_accessops *accessops; 573 void *accesscookie; 574 { 575 int i = 0; 576 #if NWSKBD > 0 577 struct device *dv; 578 579 sc->sc_muxdv = wsmux_create("dmux", sc->sc_dv.dv_unit); 580 if (!sc->sc_muxdv) 581 panic("wsdisplay_common_attach: no memory\n"); 582 sc->sc_muxdv->sc_displaydv = &sc->sc_dv; 583 #endif 584 585 sc->sc_isconsole = console; 586 587 if (console) { 588 KASSERT(wsdisplay_console_initted); 589 KASSERT(wsdisplay_console_device == NULL); 590 591 sc->sc_scr[0] = wsscreen_attach(sc, 1, 0, 0, 0, 0, 0, 0); 592 wsdisplay_console_device = sc; 593 594 printf(": console (%s, %s emulation)", 595 wsdisplay_console_conf.scrdata->name, 596 wsdisplay_console_conf.wsemul->name); 597 598 #if NWSKBD > 0 599 if ((dv = wskbd_set_console_display(&sc->sc_dv, sc->sc_muxdv))) 600 printf(", using %s", dv->dv_xname); 601 #endif 602 603 sc->sc_focusidx = 0; 604 sc->sc_focus = sc->sc_scr[0]; 605 i++; 606 } 607 printf("\n"); 608 609 sc->sc_accessops = accessops; 610 sc->sc_accesscookie = accesscookie; 611 sc->sc_scrdata = scrdata; 612 613 /* 614 * Set up a number of virtual screens if wanted. The 615 * WSDISPLAYIO_ADDSCREEN ioctl is more flexible, so this code 616 * is for special cases like installation kernels. 617 */ 618 #ifdef WSDISPLAY_DEFAULTSCREENS 619 for (; i < WSDISPLAY_DEFAULTSCREENS; i++) 620 if (wsdisplay_addscreen(sc, i, 0, 0)) 621 break; 622 #endif 623 } 624 625 void 626 wsdisplay_cnattach(type, cookie, ccol, crow, defattr) 627 const struct wsscreen_descr *type; 628 void *cookie; 629 int ccol, crow; 630 long defattr; 631 { 632 const struct wsemul_ops *wsemul; 633 634 KASSERT(!wsdisplay_console_initted); 635 KASSERT(type->nrows > 0); 636 KASSERT(type->ncols > 0); 637 KASSERT(crow < type->nrows); 638 KASSERT(ccol < type->ncols); 639 640 wsdisplay_console_conf.emulops = type->textops; 641 wsdisplay_console_conf.emulcookie = cookie; 642 wsdisplay_console_conf.scrdata = type; 643 644 wsemul = wsemul_pick(0); /* default */ 645 wsdisplay_console_conf.wsemul = wsemul; 646 wsdisplay_console_conf.wsemulcookie = (*wsemul->cnattach)(type, cookie, 647 ccol, crow, 648 defattr); 649 650 cn_tab = &wsdisplay_cons; 651 652 wsdisplay_console_initted = 1; 653 } 654 655 /* 656 * Tty and cdevsw functions. 657 */ 658 int 659 wsdisplayopen(dev, flag, mode, p) 660 dev_t dev; 661 int flag, mode; 662 struct proc *p; 663 { 664 struct wsdisplay_softc *sc; 665 struct tty *tp; 666 int unit, newopen, error; 667 struct wsscreen *scr; 668 669 unit = WSDISPLAYUNIT(dev); 670 if (unit >= wsdisplay_cd.cd_ndevs || /* make sure it was attached */ 671 (sc = wsdisplay_cd.cd_devs[unit]) == NULL) 672 return (ENXIO); 673 674 if (ISWSDISPLAYCTL(dev)) 675 return (0); 676 677 if (WSDISPLAYSCREEN(dev) >= WSDISPLAY_MAXSCREEN) 678 return (ENXIO); 679 scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]; 680 if (!scr) 681 return (ENXIO); 682 683 if (WSSCREEN_HAS_TTY(scr)) { 684 tp = scr->scr_tty; 685 tp->t_oproc = wsdisplaystart; 686 tp->t_param = wsdisplayparam; 687 tp->t_dev = dev; 688 newopen = (tp->t_state & TS_ISOPEN) == 0; 689 if (newopen) { 690 ttychars(tp); 691 tp->t_iflag = TTYDEF_IFLAG; 692 tp->t_oflag = TTYDEF_OFLAG; 693 tp->t_cflag = TTYDEF_CFLAG; 694 tp->t_lflag = TTYDEF_LFLAG; 695 tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED; 696 wsdisplayparam(tp, &tp->t_termios); 697 ttsetwater(tp); 698 } else if ((tp->t_state & TS_XCLUDE) != 0 && 699 p->p_ucred->cr_uid != 0) 700 return EBUSY; 701 tp->t_state |= TS_CARR_ON; 702 703 error = ((*linesw[tp->t_line].l_open)(dev, tp)); 704 if (error) 705 return (error); 706 707 if (newopen && WSSCREEN_HAS_EMULATOR(scr)) { 708 /* set window sizes as appropriate, and reset 709 the emulation */ 710 tp->t_winsize.ws_row = scr->scr_dconf->scrdata->nrows; 711 tp->t_winsize.ws_col = scr->scr_dconf->scrdata->ncols; 712 713 /* wsdisplay_set_emulation() */ 714 } 715 } 716 717 scr->scr_flags |= SCR_OPEN; 718 return (0); 719 } 720 721 int 722 wsdisplayclose(dev, flag, mode, p) 723 dev_t dev; 724 int flag, mode; 725 struct proc *p; 726 { 727 struct wsdisplay_softc *sc; 728 struct tty *tp; 729 int unit; 730 struct wsscreen *scr; 731 732 unit = WSDISPLAYUNIT(dev); 733 sc = wsdisplay_cd.cd_devs[unit]; 734 735 if (ISWSDISPLAYCTL(dev)) 736 return (0); 737 738 scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]; 739 740 if (WSSCREEN_HAS_TTY(scr)) { 741 if (scr->scr_hold_screen) { 742 int s; 743 744 /* XXX RESET KEYBOARD LEDS, etc. */ 745 s = spltty(); /* avoid conflict with keyboard */ 746 wsdisplay_kbdholdscreen((struct device *)sc, 0); 747 splx(s); 748 } 749 tp = scr->scr_tty; 750 (*linesw[tp->t_line].l_close)(tp, flag); 751 ttyclose(tp); 752 } 753 754 if (scr->scr_syncops) 755 (*scr->scr_syncops->destroy)(scr->scr_synccookie); 756 757 if (WSSCREEN_HAS_EMULATOR(scr)) { 758 scr->scr_flags &= ~SCR_GRAPHICS; 759 (*scr->scr_dconf->wsemul->reset)(scr->scr_dconf->wsemulcookie, 760 WSEMUL_RESET); 761 if (wsdisplay_clearonclose) 762 (*scr->scr_dconf->wsemul->reset) 763 (scr->scr_dconf->wsemulcookie, 764 WSEMUL_CLEARSCREEN); 765 } 766 767 #ifdef WSDISPLAY_COMPAT_RAWKBD 768 if (scr->scr_rawkbd) { 769 int kbmode = WSKBD_TRANSLATED; 770 (void) wsdisplay_internal_ioctl(sc, scr, WSKBDIO_SETMODE, 771 (caddr_t)&kbmode, 0, p); 772 } 773 #endif 774 775 scr->scr_flags &= ~SCR_OPEN; 776 777 return (0); 778 } 779 780 int 781 wsdisplayread(dev, uio, flag) 782 dev_t dev; 783 struct uio *uio; 784 int flag; 785 { 786 struct wsdisplay_softc *sc; 787 struct tty *tp; 788 int unit; 789 struct wsscreen *scr; 790 791 unit = WSDISPLAYUNIT(dev); 792 sc = wsdisplay_cd.cd_devs[unit]; 793 794 if (ISWSDISPLAYCTL(dev)) 795 return (0); 796 797 scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]; 798 799 if (!WSSCREEN_HAS_TTY(scr)) 800 return (ENODEV); 801 802 tp = scr->scr_tty; 803 return ((*linesw[tp->t_line].l_read)(tp, uio, flag)); 804 } 805 806 int 807 wsdisplaywrite(dev, uio, flag) 808 dev_t dev; 809 struct uio *uio; 810 int flag; 811 { 812 struct wsdisplay_softc *sc; 813 struct tty *tp; 814 int unit; 815 struct wsscreen *scr; 816 817 unit = WSDISPLAYUNIT(dev); 818 sc = wsdisplay_cd.cd_devs[unit]; 819 820 if (ISWSDISPLAYCTL(dev)) 821 return (0); 822 823 scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]; 824 825 if (!WSSCREEN_HAS_TTY(scr)) 826 return (ENODEV); 827 828 tp = scr->scr_tty; 829 return ((*linesw[tp->t_line].l_write)(tp, uio, flag)); 830 } 831 832 struct tty * 833 wsdisplaytty(dev) 834 dev_t dev; 835 { 836 struct wsdisplay_softc *sc; 837 int unit; 838 struct wsscreen *scr; 839 840 unit = WSDISPLAYUNIT(dev); 841 sc = wsdisplay_cd.cd_devs[unit]; 842 843 if (ISWSDISPLAYCTL(dev)) 844 panic("wsdisplaytty() on ctl device"); 845 846 scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]; 847 848 return (scr->scr_tty); 849 } 850 851 int 852 wsdisplayioctl(dev, cmd, data, flag, p) 853 dev_t dev; 854 u_long cmd; 855 caddr_t data; 856 int flag; 857 struct proc *p; 858 { 859 struct wsdisplay_softc *sc; 860 struct tty *tp; 861 int unit, error; 862 struct wsscreen *scr; 863 864 unit = WSDISPLAYUNIT(dev); 865 sc = wsdisplay_cd.cd_devs[unit]; 866 867 if (ISWSDISPLAYCTL(dev)) 868 return (wsdisplay_cfg_ioctl(sc, cmd, data, flag, p)); 869 870 scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]; 871 872 if (WSSCREEN_HAS_TTY(scr)) { 873 tp = scr->scr_tty; 874 875 /* printf("disc\n"); */ 876 /* do the line discipline ioctls first */ 877 error = (*linesw[tp->t_line].l_ioctl)(tp, cmd, data, flag, p); 878 if (error >= 0) 879 return (error); 880 881 /* printf("tty\n"); */ 882 /* then the tty ioctls */ 883 error = ttioctl(tp, cmd, data, flag, p); 884 if (error >= 0) 885 return (error); 886 } 887 888 #ifdef WSDISPLAY_COMPAT_USL 889 error = wsdisplay_usl_ioctl(sc, scr, cmd, data, flag, p); 890 if (error >= 0) 891 return (error); 892 #endif 893 894 error = wsdisplay_internal_ioctl(sc, scr, cmd, data, flag, p); 895 return (error != -1 ? error : ENOTTY); 896 } 897 898 int 899 wsdisplay_internal_ioctl(sc, scr, cmd, data, flag, p) 900 struct wsdisplay_softc *sc; 901 struct wsscreen *scr; 902 u_long cmd; 903 caddr_t data; 904 int flag; 905 struct proc *p; 906 { 907 int error; 908 char namebuf[16]; 909 struct wsdisplay_font fd; 910 911 #if NWSKBD > 0 912 #ifdef WSDISPLAY_COMPAT_RAWKBD 913 switch (cmd) { 914 case WSKBDIO_SETMODE: 915 scr->scr_rawkbd = (*(int *)data == WSKBD_RAW); 916 return (wsdisplay_update_rawkbd(sc, scr)); 917 case WSKBDIO_GETMODE: 918 *(int *)data = (scr->scr_rawkbd ? 919 WSKBD_RAW : WSKBD_TRANSLATED); 920 return (0); 921 } 922 #endif 923 error = wsmux_displayioctl(&sc->sc_muxdv->sc_dv, cmd, data, flag, p); 924 if (error >= 0) 925 return (error); 926 #endif /* NWSKBD > 0 */ 927 928 switch (cmd) { 929 case WSDISPLAYIO_GMODE: 930 *(u_int *)data = (scr->scr_flags & SCR_GRAPHICS ? 931 WSDISPLAYIO_MODE_MAPPED : 932 WSDISPLAYIO_MODE_EMUL); 933 return (0); 934 935 case WSDISPLAYIO_SMODE: 936 #define d (*(int *)data) 937 if (d != WSDISPLAYIO_MODE_EMUL && 938 d != WSDISPLAYIO_MODE_MAPPED) 939 return (EINVAL); 940 941 if (WSSCREEN_HAS_EMULATOR(scr)) { 942 scr->scr_flags &= ~SCR_GRAPHICS; 943 if (d == WSDISPLAYIO_MODE_MAPPED) 944 scr->scr_flags |= SCR_GRAPHICS; 945 } else if (d == WSDISPLAYIO_MODE_EMUL) 946 return (EINVAL); 947 return (0); 948 #undef d 949 950 case WSDISPLAYIO_USEFONT: 951 #define d ((struct wsdisplay_usefontdata *)data) 952 if (!sc->sc_accessops->load_font) 953 return (EINVAL); 954 if (d->name) { 955 error = copyinstr(d->name, namebuf, sizeof(namebuf), 0); 956 if (error) 957 return (error); 958 fd.name = namebuf; 959 } else 960 fd.name = 0; 961 fd.data = 0; 962 error = (*sc->sc_accessops->load_font)(sc->sc_accesscookie, 963 scr->scr_dconf->emulcookie, &fd); 964 if (!error && WSSCREEN_HAS_EMULATOR(scr)) 965 (*scr->scr_dconf->wsemul->reset) 966 (scr->scr_dconf->wsemulcookie, WSEMUL_SYNCFONT); 967 return (error); 968 #undef d 969 } 970 971 /* check ioctls for display */ 972 return ((*sc->sc_accessops->ioctl)(sc->sc_accesscookie, cmd, data, 973 flag, p)); 974 } 975 976 int 977 wsdisplay_cfg_ioctl(sc, cmd, data, flag, p) 978 struct wsdisplay_softc *sc; 979 u_long cmd; 980 caddr_t data; 981 int flag; 982 struct proc *p; 983 { 984 int error; 985 char *type, typebuf[16], *emul, emulbuf[16]; 986 void *buf; 987 #if defined(COMPAT_14) && NWSKBD > 0 988 struct wsmux_device wsmuxdata; 989 #endif 990 991 switch (cmd) { 992 case WSDISPLAYIO_ADDSCREEN: 993 #define d ((struct wsdisplay_addscreendata *)data) 994 if (d->screentype) { 995 error = copyinstr(d->screentype, typebuf, 996 sizeof(typebuf), 0); 997 if (error) 998 return (error); 999 type = typebuf; 1000 } else 1001 type = 0; 1002 if (d->emul) { 1003 error = copyinstr(d->emul, emulbuf, sizeof(emulbuf),0); 1004 if (error) 1005 return (error); 1006 emul = emulbuf; 1007 } else 1008 emul = 0; 1009 1010 return (wsdisplay_addscreen(sc, d->idx, type, emul)); 1011 #undef d 1012 case WSDISPLAYIO_DELSCREEN: 1013 #define d ((struct wsdisplay_delscreendata *)data) 1014 return (wsdisplay_delscreen(sc, d->idx, d->flags)); 1015 #undef d 1016 case WSDISPLAYIO_LDFONT: 1017 #define d ((struct wsdisplay_font *)data) 1018 if (!sc->sc_accessops->load_font) 1019 return (EINVAL); 1020 if (d->name) { 1021 error = copyinstr(d->name, typebuf, sizeof(typebuf), 0); 1022 if (error) 1023 return (error); 1024 d->name = typebuf; 1025 } else 1026 d->name = "loaded"; /* ??? */ 1027 buf = malloc(d->fontheight * d->stride * d->numchars, 1028 M_DEVBUF, M_WAITOK); 1029 error = copyin(d->data, buf, 1030 d->fontheight * d->stride * d->numchars); 1031 if (error) { 1032 free(buf, M_DEVBUF); 1033 return (error); 1034 } 1035 d->data = buf; 1036 error = 1037 (*sc->sc_accessops->load_font)(sc->sc_accesscookie, 0, d); 1038 free(buf, M_DEVBUF); 1039 #undef d 1040 return (error); 1041 1042 #if NWSKBD > 0 1043 #ifdef COMPAT_14 1044 case _O_WSDISPLAYIO_SETKEYBOARD: 1045 #define d ((struct wsdisplay_kbddata *)data) 1046 switch (d->op) { 1047 case _O_WSDISPLAY_KBD_ADD: 1048 if (d->idx == -1) { 1049 d->idx = wskbd_pickfree(); 1050 if (d->idx == -1) 1051 return (ENXIO); 1052 } 1053 wsmuxdata.type = WSMUX_KBD; 1054 wsmuxdata.idx = d->idx; 1055 return (wsmuxdoioctl(&sc->sc_muxdv->sc_dv, 1056 WSMUX_ADD_DEVICE, 1057 (caddr_t)&wsmuxdata, flag, p)); 1058 case _O_WSDISPLAY_KBD_DEL: 1059 wsmuxdata.type = WSMUX_KBD; 1060 wsmuxdata.idx = d->idx; 1061 return (wsmuxdoioctl(&sc->sc_muxdv->sc_dv, 1062 WSMUX_REMOVE_DEVICE, 1063 (caddr_t)&wsmuxdata, flag, p)); 1064 default: 1065 return (EINVAL); 1066 } 1067 #undef d 1068 #endif 1069 1070 case WSMUX_ADD_DEVICE: 1071 #define d ((struct wsmux_device *)data) 1072 if (d->idx == -1 && d->type == WSMUX_KBD) 1073 d->idx = wskbd_pickfree(); 1074 #undef d 1075 /* fall into */ 1076 case WSMUX_INJECTEVENT: 1077 case WSMUX_REMOVE_DEVICE: 1078 case WSMUX_LIST_DEVICES: 1079 return (wsmuxdoioctl(&sc->sc_muxdv->sc_dv, cmd, data, flag,p)); 1080 #endif /* NWSKBD > 0 */ 1081 1082 } 1083 return (EINVAL); 1084 } 1085 1086 int 1087 wsdisplaymmap(dev, offset, prot) 1088 dev_t dev; 1089 int offset; /* XXX */ 1090 int prot; 1091 { 1092 struct wsdisplay_softc *sc = wsdisplay_cd.cd_devs[WSDISPLAYUNIT(dev)]; 1093 struct wsscreen *scr; 1094 1095 if (ISWSDISPLAYCTL(dev)) 1096 return (-1); 1097 1098 scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]; 1099 1100 if (!(scr->scr_flags & SCR_GRAPHICS)) 1101 return (-1); 1102 1103 /* pass mmap to display */ 1104 return ((*sc->sc_accessops->mmap)(sc->sc_accesscookie, offset, prot)); 1105 } 1106 1107 int 1108 wsdisplaypoll(dev, events, p) 1109 dev_t dev; 1110 int events; 1111 struct proc *p; 1112 { 1113 struct wsdisplay_softc *sc = wsdisplay_cd.cd_devs[WSDISPLAYUNIT(dev)]; 1114 struct wsscreen *scr; 1115 1116 if (ISWSDISPLAYCTL(dev)) 1117 return (0); 1118 1119 scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]; 1120 1121 if (WSSCREEN_HAS_TTY(scr)) 1122 return (ttpoll(dev, events, p)); 1123 else 1124 return (0); 1125 } 1126 1127 void 1128 wsdisplaystart(tp) 1129 register struct tty *tp; 1130 { 1131 struct wsdisplay_softc *sc; 1132 struct wsscreen *scr; 1133 register int s, n; 1134 u_char *buf; 1135 1136 s = spltty(); 1137 if (tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP)) { 1138 splx(s); 1139 return; 1140 } 1141 sc = wsdisplay_cd.cd_devs[WSDISPLAYUNIT(tp->t_dev)]; 1142 scr = sc->sc_scr[WSDISPLAYSCREEN(tp->t_dev)]; 1143 if (scr->scr_hold_screen) { 1144 tp->t_state |= TS_TIMEOUT; 1145 splx(s); 1146 return; 1147 } 1148 tp->t_state |= TS_BUSY; 1149 splx(s); 1150 1151 /* 1152 * Drain output from ring buffer. 1153 * The output will normally be in one contiguous chunk, but when the 1154 * ring wraps, it will be in two pieces.. one at the end of the ring, 1155 * the other at the start. For performance, rather than loop here, 1156 * we output one chunk, see if there's another one, and if so, output 1157 * it too. 1158 */ 1159 1160 n = ndqb(&tp->t_outq, 0); 1161 buf = tp->t_outq.c_cf; 1162 1163 if (!(scr->scr_flags & SCR_GRAPHICS)) { 1164 KASSERT(WSSCREEN_HAS_EMULATOR(scr)); 1165 (*scr->scr_dconf->wsemul->output)(scr->scr_dconf->wsemulcookie, 1166 buf, n, 0); 1167 } 1168 ndflush(&tp->t_outq, n); 1169 1170 if ((n = ndqb(&tp->t_outq, 0)) > 0) { 1171 buf = tp->t_outq.c_cf; 1172 1173 if (!(scr->scr_flags & SCR_GRAPHICS)) { 1174 KASSERT(WSSCREEN_HAS_EMULATOR(scr)); 1175 (*scr->scr_dconf->wsemul->output)(scr->scr_dconf->wsemulcookie, 1176 buf, n, 0); 1177 } 1178 ndflush(&tp->t_outq, n); 1179 } 1180 1181 s = spltty(); 1182 tp->t_state &= ~TS_BUSY; 1183 /* Come back if there's more to do */ 1184 if (tp->t_outq.c_cc) { 1185 tp->t_state |= TS_TIMEOUT; 1186 timeout(ttrstrt, tp, (hz > 128) ? (hz / 128) : 1); 1187 } 1188 if (tp->t_outq.c_cc <= tp->t_lowat) { 1189 if (tp->t_state&TS_ASLEEP) { 1190 tp->t_state &= ~TS_ASLEEP; 1191 wakeup((caddr_t)&tp->t_outq); 1192 } 1193 selwakeup(&tp->t_wsel); 1194 } 1195 splx(s); 1196 } 1197 1198 void 1199 wsdisplaystop(tp, flag) 1200 struct tty *tp; 1201 int flag; 1202 { 1203 int s; 1204 1205 s = spltty(); 1206 if (ISSET(tp->t_state, TS_BUSY)) 1207 if (!ISSET(tp->t_state, TS_TTSTOP)) 1208 SET(tp->t_state, TS_FLUSH); 1209 splx(s); 1210 } 1211 1212 /* Set line parameters. */ 1213 int 1214 wsdisplayparam(tp, t) 1215 struct tty *tp; 1216 struct termios *t; 1217 { 1218 1219 tp->t_ispeed = t->c_ispeed; 1220 tp->t_ospeed = t->c_ospeed; 1221 tp->t_cflag = t->c_cflag; 1222 return 0; 1223 } 1224 1225 /* 1226 * Callbacks for the emulation code. 1227 */ 1228 void 1229 wsdisplay_emulbell(v) 1230 void *v; 1231 { 1232 struct wsscreen *scr = v; 1233 1234 if (scr == NULL) /* console, before real attach */ 1235 return; 1236 1237 if (scr->scr_flags & SCR_GRAPHICS) /* can this happen? */ 1238 return; 1239 1240 (void) wsdisplay_internal_ioctl(scr->sc, scr, WSKBDIO_BELL, NULL, 1241 FWRITE, NULL); 1242 } 1243 1244 void 1245 wsdisplay_emulinput(v, data, count) 1246 void *v; 1247 const u_char *data; 1248 u_int count; 1249 { 1250 struct wsscreen *scr = v; 1251 struct tty *tp; 1252 1253 if (v == NULL) /* console, before real attach */ 1254 return; 1255 1256 if (scr->scr_flags & SCR_GRAPHICS) /* XXX can't happen */ 1257 return; 1258 if (!WSSCREEN_HAS_TTY(scr)) 1259 return; 1260 1261 tp = scr->scr_tty; 1262 while (count-- > 0) 1263 (*linesw[tp->t_line].l_rint)(*data++, tp); 1264 }; 1265 1266 /* 1267 * Calls from the keyboard interface. 1268 */ 1269 void 1270 wsdisplay_kbdinput(dev, ks) 1271 struct device *dev; 1272 keysym_t ks; 1273 { 1274 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)dev; 1275 struct wsscreen *scr; 1276 char *dp; 1277 int count; 1278 struct tty *tp; 1279 1280 KASSERT(sc != NULL); 1281 1282 scr = sc->sc_focus; 1283 1284 if (!scr || !WSSCREEN_HAS_TTY(scr)) 1285 return; 1286 1287 tp = scr->scr_tty; 1288 1289 if (KS_GROUP(ks) == KS_GROUP_Ascii) 1290 (*linesw[tp->t_line].l_rint)(KS_VALUE(ks), tp); 1291 else if (WSSCREEN_HAS_EMULATOR(scr)) { 1292 count = (*scr->scr_dconf->wsemul->translate) 1293 (scr->scr_dconf->wsemulcookie, ks, &dp); 1294 while (count-- > 0) 1295 (*linesw[tp->t_line].l_rint)(*dp++, tp); 1296 } 1297 } 1298 1299 #ifdef WSDISPLAY_COMPAT_RAWKBD 1300 int 1301 wsdisplay_update_rawkbd(sc, scr) 1302 struct wsdisplay_softc *sc; 1303 struct wsscreen *scr; 1304 { 1305 int s, raw, data, error; 1306 s = spltty(); 1307 1308 raw = (scr ? scr->scr_rawkbd : 0); 1309 1310 if (scr != sc->sc_focus || 1311 sc->sc_rawkbd == raw) { 1312 splx(s); 1313 return (0); 1314 } 1315 1316 data = raw ? WSKBD_RAW : WSKBD_TRANSLATED; 1317 error = wsmux_displayioctl(&sc->sc_muxdv->sc_dv, WSKBDIO_SETMODE, 1318 (caddr_t)&data, 0, 0); 1319 if (!error) 1320 sc->sc_rawkbd = raw; 1321 splx(s); 1322 return (error); 1323 } 1324 #endif 1325 1326 int 1327 wsdisplay_switch3(arg, error, waitok) 1328 void *arg; 1329 int error, waitok; 1330 { 1331 struct wsdisplay_softc *sc = arg; 1332 int no; 1333 struct wsscreen *scr; 1334 1335 if (!(sc->sc_flags & SC_SWITCHPENDING)) { 1336 printf("wsdisplay_switch3: not switching\n"); 1337 return (EINVAL); 1338 } 1339 1340 no = sc->sc_screenwanted; 1341 if (no < 0 || no >= WSDISPLAY_MAXSCREEN) 1342 panic("wsdisplay_switch3: invalid screen %d", no); 1343 scr = sc->sc_scr[no]; 1344 if (!scr) { 1345 printf("wsdisplay_switch3: screen %d disappeared\n", no); 1346 error = ENXIO; 1347 } 1348 1349 if (error) { 1350 /* try to recover, avoid recursion */ 1351 1352 if (sc->sc_oldscreen == -1) { 1353 printf("wsdisplay_switch3: giving up\n"); 1354 sc->sc_focus = 0; 1355 #ifdef WSDISPLAY_COMPAT_RAWKBD 1356 wsdisplay_update_rawkbd(sc, 0); 1357 #endif 1358 sc->sc_flags &= ~SC_SWITCHPENDING; 1359 return (error); 1360 } 1361 1362 sc->sc_screenwanted = sc->sc_oldscreen; 1363 sc->sc_oldscreen = -1; 1364 return (wsdisplay_switch1(arg, 0, waitok)); 1365 } 1366 1367 sc->sc_flags &= ~SC_SWITCHPENDING; 1368 1369 if (!error && (scr->scr_flags & SCR_WAITACTIVE)) 1370 wakeup(scr); 1371 return (error); 1372 } 1373 1374 int 1375 wsdisplay_switch1(arg, error, waitok) 1376 void *arg; 1377 int error, waitok; 1378 { 1379 struct wsdisplay_softc *sc = arg; 1380 int no; 1381 struct wsscreen *scr; 1382 1383 if (!(sc->sc_flags & SC_SWITCHPENDING)) { 1384 printf("wsdisplay_switch1: not switching\n"); 1385 return (EINVAL); 1386 } 1387 1388 no = sc->sc_screenwanted; 1389 if (no < 0 || no >= WSDISPLAY_MAXSCREEN) 1390 panic("wsdisplay_switch1: invalid screen %d", no); 1391 scr = sc->sc_scr[no]; 1392 if (!scr) { 1393 printf("wsdisplay_switch1: screen %d disappeared\n", no); 1394 error = ENXIO; 1395 } 1396 1397 if (error) { 1398 sc->sc_flags &= ~SC_SWITCHPENDING; 1399 return (error); 1400 } 1401 1402 (*sc->sc_accessops->show_screen)(sc->sc_accesscookie, 1403 scr->scr_dconf->emulcookie); 1404 sc->sc_focusidx = no; 1405 sc->sc_focus = scr; 1406 1407 #ifdef WSDISPLAY_COMPAT_RAWKBD 1408 (void) wsdisplay_update_rawkbd(sc, scr); 1409 #endif 1410 /* keyboard map??? */ 1411 1412 #define wsswitch_cb3 ((void (*) __P((void *, int, int)))wsdisplay_switch3) 1413 if (scr->scr_syncops) { 1414 error = (*scr->scr_syncops->attach)(scr->scr_synccookie, waitok, 1415 wsswitch_cb3, sc); 1416 if (error == EAGAIN) { 1417 /* switch will be done asynchronously */ 1418 return (0); 1419 } 1420 } 1421 1422 return (wsdisplay_switch3(sc, error, waitok)); 1423 } 1424 1425 int 1426 wsdisplay_switch(dev, no, waitok) 1427 struct device *dev; 1428 int no, waitok; 1429 { 1430 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)dev; 1431 int s, res = 0; 1432 struct wsscreen *scr; 1433 1434 if (no < 0 || no >= WSDISPLAY_MAXSCREEN || !sc->sc_scr[no]) 1435 return (ENXIO); 1436 1437 s = spltty(); 1438 1439 if (sc->sc_focus && no == sc->sc_focusidx) { 1440 splx(s); 1441 return (0); 1442 } 1443 1444 if (sc->sc_flags & SC_SWITCHPENDING) { 1445 splx(s); 1446 return (EBUSY); 1447 } 1448 1449 sc->sc_flags |= SC_SWITCHPENDING; 1450 sc->sc_screenwanted = no; 1451 1452 splx(s); 1453 1454 scr = sc->sc_focus; 1455 if (!scr) { 1456 sc->sc_oldscreen = -1; 1457 return (wsdisplay_switch1(sc, 0, waitok)); 1458 } else 1459 sc->sc_oldscreen = sc->sc_focusidx; 1460 1461 #define wsswitch_cb1 ((void (*) __P((void *, int, int)))wsdisplay_switch1) 1462 if (scr->scr_syncops) { 1463 res = (*scr->scr_syncops->detach)(scr->scr_synccookie, waitok, 1464 wsswitch_cb1, sc); 1465 if (res == EAGAIN) { 1466 /* switch will be done asynchronously */ 1467 return (0); 1468 } 1469 } else if (scr->scr_flags & SCR_GRAPHICS) { 1470 /* no way to save state */ 1471 res = EBUSY; 1472 } 1473 1474 return (wsdisplay_switch1(sc, res, waitok)); 1475 } 1476 1477 void 1478 wsdisplay_reset(dev, op) 1479 struct device *dev; 1480 enum wsdisplay_resetops op; 1481 { 1482 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)dev; 1483 struct wsscreen *scr; 1484 1485 KASSERT(sc != NULL); 1486 scr = sc->sc_focus; 1487 1488 if (!scr) 1489 return; 1490 1491 switch (op) { 1492 case WSDISPLAY_RESETEMUL: 1493 if (!WSSCREEN_HAS_EMULATOR(scr)) 1494 break; 1495 (*scr->scr_dconf->wsemul->reset)(scr->scr_dconf->wsemulcookie, 1496 WSEMUL_RESET); 1497 break; 1498 case WSDISPLAY_RESETCLOSE: 1499 wsdisplay_closescreen(sc, scr); 1500 break; 1501 } 1502 } 1503 1504 /* 1505 * Interface for (external) VT switch / process synchronization code 1506 */ 1507 int 1508 wsscreen_attach_sync(scr, ops, cookie) 1509 struct wsscreen *scr; 1510 const struct wscons_syncops *ops; 1511 void *cookie; 1512 { 1513 if (scr->scr_syncops) { 1514 /* 1515 * The screen is already claimed. 1516 * Check if the owner is still alive. 1517 */ 1518 if ((*scr->scr_syncops->check)(scr->scr_synccookie)) 1519 return (EBUSY); 1520 } 1521 scr->scr_syncops = ops; 1522 scr->scr_synccookie = cookie; 1523 return (0); 1524 } 1525 1526 int 1527 wsscreen_detach_sync(scr) 1528 struct wsscreen *scr; 1529 { 1530 if (!scr->scr_syncops) 1531 return (EINVAL); 1532 scr->scr_syncops = 0; 1533 return (0); 1534 } 1535 1536 int 1537 wsscreen_lookup_sync(scr, ops, cookiep) 1538 struct wsscreen *scr; 1539 const struct wscons_syncops *ops; /* used as ID */ 1540 void **cookiep; 1541 { 1542 if (!scr->scr_syncops || ops != scr->scr_syncops) 1543 return (EINVAL); 1544 *cookiep = scr->scr_synccookie; 1545 return (0); 1546 } 1547 1548 /* 1549 * Interface to virtual screen stuff 1550 */ 1551 int 1552 wsdisplay_maxscreenidx(sc) 1553 struct wsdisplay_softc *sc; 1554 { 1555 return (WSDISPLAY_MAXSCREEN - 1); 1556 } 1557 1558 int 1559 wsdisplay_screenstate(sc, idx) 1560 struct wsdisplay_softc *sc; 1561 int idx; 1562 { 1563 if (idx >= WSDISPLAY_MAXSCREEN) 1564 return (EINVAL); 1565 if (!sc->sc_scr[idx]) 1566 return (ENXIO); 1567 return ((sc->sc_scr[idx]->scr_flags & SCR_OPEN) ? EBUSY : 0); 1568 } 1569 1570 int 1571 wsdisplay_getactivescreen(sc) 1572 struct wsdisplay_softc *sc; 1573 { 1574 return (sc->sc_focusidx); 1575 } 1576 1577 int 1578 wsscreen_switchwait(sc, no) 1579 struct wsdisplay_softc *sc; 1580 int no; 1581 { 1582 struct wsscreen *scr; 1583 int s, res = 0; 1584 1585 if (no < 0 || no >= WSDISPLAY_MAXSCREEN) 1586 return (ENXIO); 1587 scr = sc->sc_scr[no]; 1588 if (!scr) 1589 return (ENXIO); 1590 1591 s = spltty(); 1592 if (scr != sc->sc_focus) { 1593 scr->scr_flags |= SCR_WAITACTIVE; 1594 res = tsleep(scr, PCATCH, "wswait", 0); 1595 if (scr != sc->sc_scr[no]) 1596 res = ENXIO; /* disappeared in the meantime */ 1597 else 1598 scr->scr_flags &= ~SCR_WAITACTIVE; 1599 } 1600 splx(s); 1601 return (res); 1602 } 1603 1604 void 1605 wsdisplay_kbdholdscreen(dev, hold) 1606 struct device *dev; 1607 int hold; 1608 { 1609 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)dev; 1610 struct wsscreen *scr; 1611 1612 scr = sc->sc_focus; 1613 1614 if (hold) 1615 scr->scr_hold_screen = 1; 1616 else { 1617 scr->scr_hold_screen = 0; 1618 timeout(ttrstrt, scr->scr_tty, 0); /* "immediate" */ 1619 } 1620 } 1621 1622 #if NWSKBD > 0 1623 struct device * 1624 wsdisplay_set_console_kbd(kbddv) 1625 struct device *kbddv; 1626 { 1627 if (!wsdisplay_console_device) 1628 return (0); 1629 if (wskbd_add_mux(kbddv->dv_unit, wsdisplay_console_device->sc_muxdv)) 1630 return (0); 1631 return (&wsdisplay_console_device->sc_dv); 1632 } 1633 #endif /* NWSKBD > 0 */ 1634 1635 /* 1636 * Console interface. 1637 */ 1638 void 1639 wsdisplay_cnputc(dev, i) 1640 dev_t dev; 1641 int i; 1642 { 1643 struct wsscreen_internal *dc; 1644 char c = i; 1645 1646 if (!wsdisplay_console_initted) 1647 return; 1648 1649 if (wsdisplay_console_device != NULL && 1650 (wsdisplay_console_device->sc_scr[0]->scr_flags & SCR_GRAPHICS)) 1651 return; 1652 1653 dc = &wsdisplay_console_conf; 1654 (*dc->wsemul->output)(dc->wsemulcookie, &c, 1, 1); 1655 } 1656 1657 static int 1658 wsdisplay_getc_dummy(dev) 1659 dev_t dev; 1660 { 1661 /* panic? */ 1662 return (0); 1663 } 1664 1665 static void 1666 wsdisplay_pollc_dummy(dev, on) 1667 dev_t dev; 1668 int on; 1669 { 1670 } 1671 1672 void 1673 wsdisplay_set_cons_kbd(get, poll) 1674 int (*get) __P((dev_t)); 1675 void (*poll) __P((dev_t, int)); 1676 { 1677 wsdisplay_cons.cn_getc = get; 1678 wsdisplay_cons.cn_pollc = poll; 1679 } 1680
Indexes created Wed Oct 15 16:09:53 GMT 2025