wsdisplay.c revision 1.51.2.6
1 /* $NetBSD: wsdisplay.c,v 1.51.2.6 2002/09/06 08:47:30 jdolecek 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 1.51.2.6 2002/09/06 08:47:30 jdolecek Exp $"); 35 36 #include "opt_wsdisplay_compat.h" 37 #include "opt_compat_netbsd.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/kernel.h> 47 #include <sys/proc.h> 48 #include <sys/malloc.h> 49 #include <sys/syslog.h> 50 #include <sys/systm.h> 51 #include <sys/tty.h> 52 #include <sys/signalvar.h> 53 #include <sys/errno.h> 54 #include <sys/fcntl.h> 55 #include <sys/vnode.h> 56 57 #include <dev/wscons/wseventvar.h> 58 #include <dev/wscons/wsmuxvar.h> 59 #include <dev/wscons/wsconsio.h> 60 #include <dev/wscons/wsdisplayvar.h> 61 #include <dev/wscons/wsksymvar.h> 62 #include <dev/wscons/wsksymdef.h> 63 #include <dev/wscons/wsemulvar.h> 64 #include <dev/wscons/wscons_callbacks.h> 65 #include <dev/cons.h> 66 67 struct wsscreen_internal { 68 const struct wsdisplay_emulops *emulops; 69 void *emulcookie; 70 71 const struct wsscreen_descr *scrdata; 72 73 const struct wsemul_ops *wsemul; 74 void *wsemulcookie; 75 }; 76 77 struct wsscreen { 78 struct wsscreen_internal *scr_dconf; 79 80 struct tty *scr_tty; 81 int scr_hold_screen; /* hold tty output */ 82 83 int scr_flags; 84 #define SCR_OPEN 1 /* is it open? */ 85 #define SCR_WAITACTIVE 2 /* someone waiting on activation */ 86 #define SCR_GRAPHICS 4 /* graphics mode, no text (emulation) output */ 87 const struct wscons_syncops *scr_syncops; 88 void *scr_synccookie; 89 90 #ifdef WSDISPLAY_COMPAT_RAWKBD 91 int scr_rawkbd; 92 #endif 93 94 struct wsdisplay_softc *sc; 95 }; 96 97 struct wsscreen *wsscreen_attach(struct wsdisplay_softc *, int, 98 const char *, 99 const struct wsscreen_descr *, void *, 100 int, int, long); 101 void wsscreen_detach(struct wsscreen *); 102 int wsdisplay_addscreen(struct wsdisplay_softc *, int, const char *, const char *); 103 static void wsdisplay_shutdownhook(void *); 104 static void wsdisplay_addscreen_print(struct wsdisplay_softc *, int, int); 105 static void wsdisplay_closescreen(struct wsdisplay_softc *, struct wsscreen *); 106 int wsdisplay_delscreen(struct wsdisplay_softc *, int, int); 107 108 #define WSDISPLAY_MAXSCREEN 8 109 110 struct wsdisplay_softc { 111 struct device sc_dv; 112 113 const struct wsdisplay_accessops *sc_accessops; 114 void *sc_accesscookie; 115 116 const struct wsscreen_list *sc_scrdata; 117 118 struct wsscreen *sc_scr[WSDISPLAY_MAXSCREEN]; 119 int sc_focusidx; /* available only if sc_focus isn't null */ 120 struct wsscreen *sc_focus; 121 122 struct wseventvar evar; 123 124 int sc_isconsole; 125 126 int sc_flags; 127 #define SC_SWITCHPENDING 1 128 int sc_screenwanted, sc_oldscreen; /* valid with SC_SWITCHPENDING */ 129 130 #if NWSKBD > 0 131 struct wsevsrc *sc_input; 132 #ifdef WSDISPLAY_COMPAT_RAWKBD 133 int sc_rawkbd; 134 #endif 135 #endif /* NWSKBD > 0 */ 136 }; 137 138 extern struct cfdriver wsdisplay_cd; 139 140 /* Autoconfiguration definitions. */ 141 static int wsdisplay_emul_match(struct device *, struct cfdata *, void *); 142 static void wsdisplay_emul_attach(struct device *, struct device *, void *); 143 static int wsdisplay_noemul_match(struct device *, struct cfdata *, void *); 144 static void wsdisplay_noemul_attach(struct device *, struct device *, void *); 145 146 struct cfattach wsdisplay_emul_ca = { 147 sizeof (struct wsdisplay_softc), 148 wsdisplay_emul_match, 149 wsdisplay_emul_attach, 150 }; 151 152 struct cfattach wsdisplay_noemul_ca = { 153 sizeof (struct wsdisplay_softc), 154 wsdisplay_noemul_match, 155 wsdisplay_noemul_attach, 156 }; 157 158 /* Exported tty- and cdevsw-related functions. */ 159 cdev_decl(wsdisplay); 160 161 static void wsdisplaystart(struct tty *); 162 static int wsdisplayparam(struct tty *, struct termios *); 163 164 165 /* Internal macros, functions, and variables. */ 166 #define SET(t, f) (t) |= (f) 167 #define CLR(t, f) (t) &= ~(f) 168 #define ISSET(t, f) ((t) & (f)) 169 170 #define WSDISPLAYUNIT(dev) (minor(dev) >> 8) 171 #define WSDISPLAYSCREEN(dev) (minor(dev) & 0xff) 172 #define ISWSDISPLAYSTAT(dev) (WSDISPLAYSCREEN(dev) == 254) 173 #define ISWSDISPLAYCTL(dev) (WSDISPLAYSCREEN(dev) == 255) 174 #define WSDISPLAYMINOR(unit, screen) (((unit) << 8) | (screen)) 175 176 #define WSSCREEN_HAS_EMULATOR(scr) ((scr)->scr_dconf->wsemul != NULL) 177 #define WSSCREEN_HAS_TTY(scr) ((scr)->scr_tty != NULL) 178 179 static void wsdisplay_common_attach(struct wsdisplay_softc *sc, 180 int console, int kbdmux, const struct wsscreen_list *, 181 const struct wsdisplay_accessops *accessops, 182 void *accesscookie); 183 184 #ifdef WSDISPLAY_COMPAT_RAWKBD 185 int wsdisplay_update_rawkbd(struct wsdisplay_softc *, 186 struct wsscreen *); 187 #endif 188 189 static int wsdisplay_console_initted; 190 static struct wsdisplay_softc *wsdisplay_console_device; 191 static struct wsscreen_internal wsdisplay_console_conf; 192 193 static int wsdisplay_getc_dummy(dev_t); 194 static void wsdisplay_pollc(dev_t, int); 195 196 static int wsdisplay_cons_pollmode; 197 static void (*wsdisplay_cons_kbd_pollc)(dev_t, int); 198 199 static struct consdev wsdisplay_cons = { 200 NULL, NULL, wsdisplay_getc_dummy, wsdisplay_cnputc, 201 wsdisplay_pollc, NULL, NODEV, CN_NORMAL 202 }; 203 204 #ifndef WSDISPLAY_DEFAULTSCREENS 205 # define WSDISPLAY_DEFAULTSCREENS 0 206 #endif 207 int wsdisplay_defaultscreens = WSDISPLAY_DEFAULTSCREENS; 208 209 int wsdisplay_switch1(void *, int, int); 210 int wsdisplay_switch2(void *, int, int); 211 int wsdisplay_switch3(void *, int, int); 212 213 int wsdisplay_clearonclose; 214 215 struct wsscreen * 216 wsscreen_attach(struct wsdisplay_softc *sc, int console, const char *emul, 217 const struct wsscreen_descr *type, void *cookie, int ccol, 218 int crow, long defattr) 219 { 220 struct wsscreen_internal *dconf; 221 struct wsscreen *scr; 222 223 scr = malloc(sizeof(struct wsscreen), M_DEVBUF, M_WAITOK); 224 if (!scr) 225 return (NULL); 226 227 if (console) { 228 dconf = &wsdisplay_console_conf; 229 /* 230 * If there's an emulation, tell it about the callback argument. 231 * The other stuff is already there. 232 */ 233 if (dconf->wsemul != NULL) 234 (*dconf->wsemul->attach)(1, 0, 0, 0, 0, scr, 0); 235 } else { /* not console */ 236 dconf = malloc(sizeof(struct wsscreen_internal), 237 M_DEVBUF, M_NOWAIT); 238 dconf->emulops = type->textops; 239 dconf->emulcookie = cookie; 240 if (dconf->emulops) { 241 dconf->wsemul = wsemul_pick(emul); 242 if (dconf->wsemul == NULL) { 243 free(dconf, M_DEVBUF); 244 free(scr, M_DEVBUF); 245 return (NULL); 246 } 247 dconf->wsemulcookie = 248 (*dconf->wsemul->attach)(0, type, cookie, 249 ccol, crow, scr, defattr); 250 } else 251 dconf->wsemul = NULL; 252 dconf->scrdata = type; 253 } 254 255 scr->scr_dconf = dconf; 256 257 scr->scr_tty = ttymalloc(); 258 tty_attach(scr->scr_tty); 259 scr->scr_hold_screen = 0; 260 if (WSSCREEN_HAS_EMULATOR(scr)) 261 scr->scr_flags = 0; 262 else 263 scr->scr_flags = SCR_GRAPHICS; 264 265 scr->scr_syncops = 0; 266 scr->sc = sc; 267 #ifdef WSDISPLAY_COMPAT_RAWKBD 268 scr->scr_rawkbd = 0; 269 #endif 270 return (scr); 271 } 272 273 void 274 wsscreen_detach(struct wsscreen *scr) 275 { 276 int ccol, crow; /* XXX */ 277 278 if (WSSCREEN_HAS_TTY(scr)) { 279 tty_detach(scr->scr_tty); 280 ttyfree(scr->scr_tty); 281 } 282 if (WSSCREEN_HAS_EMULATOR(scr)) 283 (*scr->scr_dconf->wsemul->detach)(scr->scr_dconf->wsemulcookie, 284 &ccol, &crow); 285 free(scr->scr_dconf, M_DEVBUF); 286 free(scr, M_DEVBUF); 287 } 288 289 const struct wsscreen_descr * 290 wsdisplay_screentype_pick(const struct wsscreen_list *scrdata, const char *name) 291 { 292 int i; 293 const struct wsscreen_descr *scr; 294 295 KASSERT(scrdata->nscreens > 0); 296 297 if (name == NULL) 298 return (scrdata->screens[0]); 299 300 for (i = 0; i < scrdata->nscreens; i++) { 301 scr = scrdata->screens[i]; 302 if (!strcmp(name, scr->name)) 303 return (scr); 304 } 305 306 return (0); 307 } 308 309 /* 310 * print info about attached screen 311 */ 312 static void 313 wsdisplay_addscreen_print(struct wsdisplay_softc *sc, int idx, int count) 314 { 315 printf("%s: screen %d", sc->sc_dv.dv_xname, idx); 316 if (count > 1) 317 printf("-%d", idx + (count-1)); 318 printf(" added (%s", sc->sc_scr[idx]->scr_dconf->scrdata->name); 319 if (WSSCREEN_HAS_EMULATOR(sc->sc_scr[idx])) { 320 printf(", %s emulation", 321 sc->sc_scr[idx]->scr_dconf->wsemul->name); 322 } 323 printf(")\n"); 324 } 325 326 int 327 wsdisplay_addscreen(struct wsdisplay_softc *sc, int idx, 328 const char *screentype, const char *emul) 329 { 330 const struct wsscreen_descr *scrdesc; 331 int error; 332 void *cookie; 333 int ccol, crow; 334 long defattr; 335 struct wsscreen *scr; 336 int s; 337 338 if (idx < 0 || idx >= WSDISPLAY_MAXSCREEN) 339 return (EINVAL); 340 if (sc->sc_scr[idx] != NULL) 341 return (EBUSY); 342 343 scrdesc = wsdisplay_screentype_pick(sc->sc_scrdata, screentype); 344 if (!scrdesc) 345 return (ENXIO); 346 error = (*sc->sc_accessops->alloc_screen)(sc->sc_accesscookie, 347 scrdesc, &cookie, &ccol, &crow, &defattr); 348 if (error) 349 return (error); 350 351 scr = wsscreen_attach(sc, 0, emul, scrdesc, 352 cookie, ccol, crow, defattr); 353 if (scr == NULL) { 354 (*sc->sc_accessops->free_screen)(sc->sc_accesscookie, 355 cookie); 356 return (ENXIO); 357 } 358 359 sc->sc_scr[idx] = scr; 360 361 /* if no screen has focus yet, activate the first we get */ 362 s = spltty(); 363 if (!sc->sc_focus) { 364 (*sc->sc_accessops->show_screen)(sc->sc_accesscookie, 365 scr->scr_dconf->emulcookie, 366 0, 0, 0); 367 sc->sc_focusidx = idx; 368 sc->sc_focus = scr; 369 } 370 splx(s); 371 return (0); 372 } 373 374 static void 375 wsdisplay_closescreen(struct wsdisplay_softc *sc, struct wsscreen *scr) 376 { 377 int maj, mn, idx; 378 379 /* hangup */ 380 if (WSSCREEN_HAS_TTY(scr)) { 381 struct tty *tp = scr->scr_tty; 382 (*tp->t_linesw->l_modem)(tp, 0); 383 } 384 385 /* locate the major number */ 386 for (maj = 0; maj < nchrdev; maj++) 387 if (cdevsw[maj].d_open == wsdisplayopen) 388 break; 389 /* locate the screen index */ 390 for (idx = 0; idx < WSDISPLAY_MAXSCREEN; idx++) 391 if (scr == sc->sc_scr[idx]) 392 break; 393 #ifdef DIAGNOSTIC 394 if (idx == WSDISPLAY_MAXSCREEN) 395 panic("wsdisplay_forceclose: bad screen"); 396 #endif 397 398 /* nuke the vnodes */ 399 mn = WSDISPLAYMINOR(sc->sc_dv.dv_unit, idx); 400 vdevgone(maj, mn, mn, VCHR); 401 } 402 403 int 404 wsdisplay_delscreen(struct wsdisplay_softc *sc, int idx, int flags) 405 { 406 struct wsscreen *scr; 407 int s; 408 void *cookie; 409 410 if (idx < 0 || idx >= WSDISPLAY_MAXSCREEN) 411 return (EINVAL); 412 scr = sc->sc_scr[idx]; 413 if (!scr) 414 return (ENXIO); 415 416 if (scr->scr_dconf == &wsdisplay_console_conf || 417 scr->scr_syncops || 418 ((scr->scr_flags & SCR_OPEN) && !(flags & WSDISPLAY_DELSCR_FORCE))) 419 return(EBUSY); 420 421 wsdisplay_closescreen(sc, scr); 422 423 /* 424 * delete pointers, so neither device entries 425 * nor keyboard input can reference it anymore 426 */ 427 s = spltty(); 428 if (sc->sc_focus == scr) { 429 sc->sc_focus = 0; 430 #ifdef WSDISPLAY_COMPAT_RAWKBD 431 wsdisplay_update_rawkbd(sc, 0); 432 #endif 433 } 434 sc->sc_scr[idx] = 0; 435 splx(s); 436 437 /* 438 * Wake up processes waiting for the screen to 439 * be activated. Sleepers must check whether 440 * the screen still exists. 441 */ 442 if (scr->scr_flags & SCR_WAITACTIVE) 443 wakeup(scr); 444 445 /* save a reference to the graphics screen */ 446 cookie = scr->scr_dconf->emulcookie; 447 448 wsscreen_detach(scr); 449 450 (*sc->sc_accessops->free_screen)(sc->sc_accesscookie, 451 cookie); 452 453 printf("%s: screen %d deleted\n", sc->sc_dv.dv_xname, idx); 454 return (0); 455 } 456 457 /* 458 * Autoconfiguration functions. 459 */ 460 int 461 wsdisplay_emul_match(struct device *parent, struct cfdata *match, void *aux) 462 { 463 struct wsemuldisplaydev_attach_args *ap = aux; 464 465 if (match->wsemuldisplaydevcf_console != 466 WSEMULDISPLAYDEVCF_CONSOLE_UNK) { 467 /* 468 * If console-ness of device specified, either match 469 * exactly (at high priority), or fail. 470 */ 471 if (match->wsemuldisplaydevcf_console != 0 && 472 ap->console != 0) 473 return (10); 474 else 475 return (0); 476 } 477 478 /* If console-ness unspecified, it wins. */ 479 return (1); 480 } 481 482 void 483 wsdisplay_emul_attach(struct device *parent, struct device *self, void *aux) 484 { 485 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)self; 486 struct wsemuldisplaydev_attach_args *ap = aux; 487 488 wsdisplay_common_attach(sc, ap->console, 489 sc->sc_dv.dv_cfdata->wsemuldisplaydevcf_kbdmux, ap->scrdata, 490 ap->accessops, ap->accesscookie); 491 492 if (ap->console) { 493 int maj; 494 495 /* locate the major number */ 496 for (maj = 0; maj < nchrdev; maj++) 497 if (cdevsw[maj].d_open == wsdisplayopen) 498 break; 499 500 cn_tab->cn_dev = makedev(maj, WSDISPLAYMINOR(self->dv_unit, 0)); 501 } 502 } 503 504 /* Print function (for parent devices). */ 505 int 506 wsemuldisplaydevprint(void *aux, const char *pnp) 507 { 508 #if 0 /* -Wunused */ 509 struct wsemuldisplaydev_attach_args *ap = aux; 510 #endif 511 512 if (pnp) 513 printf("wsdisplay at %s", pnp); 514 #if 0 /* don't bother; it's ugly */ 515 printf(" console %d", ap->console); 516 #endif 517 518 return (UNCONF); 519 } 520 521 int 522 wsdisplay_noemul_match(struct device *parent, struct cfdata *match, void *aux) 523 { 524 #if 0 /* -Wunused */ 525 struct wsdisplaydev_attach_args *ap = aux; 526 #endif 527 528 /* Always match. */ 529 return (1); 530 } 531 532 void 533 wsdisplay_noemul_attach(struct device *parent, struct device *self, void *aux) 534 { 535 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)self; 536 struct wsdisplaydev_attach_args *ap = aux; 537 538 wsdisplay_common_attach(sc, 0, 539 sc->sc_dv.dv_cfdata->wsemuldisplaydevcf_kbdmux, NULL, 540 ap->accessops, ap->accesscookie); 541 } 542 543 /* Print function (for parent devices). */ 544 int 545 wsdisplaydevprint(void *aux, const char *pnp) 546 { 547 #if 0 /* -Wunused */ 548 struct wsdisplaydev_attach_args *ap = aux; 549 #endif 550 551 if (pnp) 552 printf("wsdisplay at %s", pnp); 553 554 return (UNCONF); 555 } 556 557 static void 558 wsdisplay_common_attach(struct wsdisplay_softc *sc, int console, int kbdmux, 559 const struct wsscreen_list *scrdata, 560 const struct wsdisplay_accessops *accessops, 561 void *accesscookie) 562 { 563 static int hookset; 564 int i, start=0; 565 #if NWSKBD > 0 566 struct wsevsrc *kme; 567 #if NWSMUX > 0 568 struct wsmux_softc *mux; 569 570 if (kbdmux >= 0) 571 mux = wsmux_getmux(kbdmux); 572 else 573 mux = wsmux_create("dmux", sc->sc_dv.dv_unit); 574 /* XXX panic()ing isn't nice, but attach cannot fail */ 575 if (mux == NULL) 576 panic("wsdisplay_common_attach: no memory\n"); 577 sc->sc_input = &mux->sc_base; 578 mux->sc_base.me_dispdv = &sc->sc_dv; 579 printf(" kbdmux %d", kbdmux); 580 #else 581 if (kbdmux >= 0) 582 printf(" (kbdmux ignored)"); 583 #endif 584 #endif 585 586 sc->sc_isconsole = console; 587 588 if (console) { 589 KASSERT(wsdisplay_console_initted); 590 KASSERT(wsdisplay_console_device == NULL); 591 592 sc->sc_scr[0] = wsscreen_attach(sc, 1, 0, 0, 0, 0, 0, 0); 593 wsdisplay_console_device = sc; 594 595 printf(": console (%s, %s emulation)", 596 wsdisplay_console_conf.scrdata->name, 597 wsdisplay_console_conf.wsemul->name); 598 599 #if NWSKBD > 0 600 kme = wskbd_set_console_display(&sc->sc_dv, sc->sc_input); 601 if (kme != NULL) 602 printf(", using %s", kme->me_dv.dv_xname); 603 #if NWSMUX == 0 604 sc->sc_input = kme; 605 #endif 606 #endif 607 608 sc->sc_focusidx = 0; 609 sc->sc_focus = sc->sc_scr[0]; 610 start = 1; 611 } 612 printf("\n"); 613 614 #if NWSKBD > 0 && NWSMUX > 0 615 wsmux_set_display(mux, &sc->sc_dv); 616 #endif 617 618 sc->sc_accessops = accessops; 619 sc->sc_accesscookie = accesscookie; 620 sc->sc_scrdata = scrdata; 621 622 /* 623 * Set up a number of virtual screens if wanted. The 624 * WSDISPLAYIO_ADDSCREEN ioctl is more flexible, so this code 625 * is for special cases like installation kernels. 626 */ 627 for (i = start; i < wsdisplay_defaultscreens; i++) { 628 if (wsdisplay_addscreen(sc, i, 0, 0)) 629 break; 630 } 631 632 if (i > start) 633 wsdisplay_addscreen_print(sc, start, i-start); 634 635 if (hookset == 0) 636 shutdownhook_establish(wsdisplay_shutdownhook, NULL); 637 hookset = 1; 638 } 639 640 void 641 wsdisplay_cnattach(const struct wsscreen_descr *type, void *cookie, 642 int ccol, int crow, long defattr) 643 { 644 const struct wsemul_ops *wsemul; 645 646 KASSERT(!wsdisplay_console_initted); 647 KASSERT(type->nrows > 0); 648 KASSERT(type->ncols > 0); 649 KASSERT(crow < type->nrows); 650 KASSERT(ccol < type->ncols); 651 652 wsdisplay_console_conf.emulops = type->textops; 653 wsdisplay_console_conf.emulcookie = cookie; 654 wsdisplay_console_conf.scrdata = type; 655 656 wsemul = wsemul_pick(0); /* default */ 657 wsdisplay_console_conf.wsemul = wsemul; 658 wsdisplay_console_conf.wsemulcookie = (*wsemul->cnattach)(type, cookie, 659 ccol, crow, 660 defattr); 661 662 cn_tab = &wsdisplay_cons; 663 wsdisplay_console_initted = 1; 664 } 665 666 /* 667 * Tty and cdevsw functions. 668 */ 669 int 670 wsdisplayopen(dev_t dev, int flag, int mode, struct proc *p) 671 { 672 struct wsdisplay_softc *sc; 673 struct tty *tp; 674 int newopen, error; 675 struct wsscreen *scr; 676 677 sc = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 678 if (sc == NULL) /* make sure it was attached */ 679 return (ENXIO); 680 681 if (ISWSDISPLAYSTAT(dev)) { 682 wsevent_init(&sc->evar); 683 sc->evar.io = p; 684 return (0); 685 } 686 687 if (ISWSDISPLAYCTL(dev)) 688 return (0); 689 690 if (WSDISPLAYSCREEN(dev) >= WSDISPLAY_MAXSCREEN) 691 return (ENXIO); 692 scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]; 693 if (!scr) 694 return (ENXIO); 695 696 if (WSSCREEN_HAS_TTY(scr)) { 697 tp = scr->scr_tty; 698 tp->t_oproc = wsdisplaystart; 699 tp->t_param = wsdisplayparam; 700 tp->t_dev = dev; 701 newopen = (tp->t_state & TS_ISOPEN) == 0; 702 if (newopen) { 703 ttychars(tp); 704 tp->t_iflag = TTYDEF_IFLAG; 705 tp->t_oflag = TTYDEF_OFLAG; 706 tp->t_cflag = TTYDEF_CFLAG; 707 tp->t_lflag = TTYDEF_LFLAG; 708 tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED; 709 wsdisplayparam(tp, &tp->t_termios); 710 ttsetwater(tp); 711 } else if ((tp->t_state & TS_XCLUDE) != 0 && 712 p->p_ucred->cr_uid != 0) 713 return EBUSY; 714 tp->t_state |= TS_CARR_ON; 715 716 error = ((*tp->t_linesw->l_open)(dev, tp)); 717 if (error) 718 return (error); 719 720 if (newopen && WSSCREEN_HAS_EMULATOR(scr)) { 721 /* set window sizes as appropriate, and reset 722 the emulation */ 723 tp->t_winsize.ws_row = scr->scr_dconf->scrdata->nrows; 724 tp->t_winsize.ws_col = scr->scr_dconf->scrdata->ncols; 725 726 /* wsdisplay_set_emulation() */ 727 } 728 } 729 730 scr->scr_flags |= SCR_OPEN; 731 return (0); 732 } 733 734 int 735 wsdisplayclose(dev_t dev, int flag, int mode, struct proc *p) 736 { 737 struct wsdisplay_softc *sc; 738 struct tty *tp; 739 struct wsscreen *scr; 740 741 sc = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 742 743 if (ISWSDISPLAYSTAT(dev)) { 744 wsevent_fini(&sc->evar); 745 return (0); 746 } 747 748 if (ISWSDISPLAYCTL(dev)) 749 return (0); 750 751 scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]; 752 753 if (WSSCREEN_HAS_TTY(scr)) { 754 if (scr->scr_hold_screen) { 755 int s; 756 757 /* XXX RESET KEYBOARD LEDS, etc. */ 758 s = spltty(); /* avoid conflict with keyboard */ 759 wsdisplay_kbdholdscreen((struct device *)sc, 0); 760 splx(s); 761 } 762 tp = scr->scr_tty; 763 (*tp->t_linesw->l_close)(tp, flag); 764 ttyclose(tp); 765 } 766 767 if (scr->scr_syncops) 768 (*scr->scr_syncops->destroy)(scr->scr_synccookie); 769 770 if (WSSCREEN_HAS_EMULATOR(scr)) { 771 scr->scr_flags &= ~SCR_GRAPHICS; 772 (*scr->scr_dconf->wsemul->reset)(scr->scr_dconf->wsemulcookie, 773 WSEMUL_RESET); 774 if (wsdisplay_clearonclose) 775 (*scr->scr_dconf->wsemul->reset) 776 (scr->scr_dconf->wsemulcookie, 777 WSEMUL_CLEARSCREEN); 778 } 779 780 #ifdef WSDISPLAY_COMPAT_RAWKBD 781 if (scr->scr_rawkbd) { 782 int kbmode = WSKBD_TRANSLATED; 783 (void)wsdisplay_internal_ioctl(sc, scr, WSKBDIO_SETMODE, 784 (caddr_t)&kbmode, 0, p); 785 } 786 #endif 787 788 scr->scr_flags &= ~SCR_OPEN; 789 790 return (0); 791 } 792 793 int 794 wsdisplayread(dev_t dev, struct uio *uio, int flag) 795 { 796 struct wsdisplay_softc *sc; 797 struct tty *tp; 798 struct wsscreen *scr; 799 int error; 800 801 sc = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 802 803 if (ISWSDISPLAYSTAT(dev)) { 804 error = wsevent_read(&sc->evar, uio, flag); 805 return (error); 806 } 807 808 if (ISWSDISPLAYCTL(dev)) 809 return (0); 810 811 scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]; 812 813 if (!WSSCREEN_HAS_TTY(scr)) 814 return (ENODEV); 815 816 tp = scr->scr_tty; 817 return ((*tp->t_linesw->l_read)(tp, uio, flag)); 818 } 819 820 int 821 wsdisplaywrite(dev_t dev, struct uio *uio, int flag) 822 { 823 struct wsdisplay_softc *sc; 824 struct tty *tp; 825 struct wsscreen *scr; 826 827 sc = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 828 829 if (ISWSDISPLAYSTAT(dev)) { 830 return (0); 831 } 832 833 if (ISWSDISPLAYCTL(dev)) 834 return (0); 835 836 scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]; 837 838 if (!WSSCREEN_HAS_TTY(scr)) 839 return (ENODEV); 840 841 tp = scr->scr_tty; 842 return ((*tp->t_linesw->l_write)(tp, uio, flag)); 843 } 844 845 int 846 wsdisplaypoll(dev_t dev, int events, struct proc *p) 847 { 848 struct wsdisplay_softc *sc; 849 struct tty *tp; 850 struct wsscreen *scr; 851 852 sc = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 853 854 if (ISWSDISPLAYSTAT(dev)) 855 return (wsevent_poll(&sc->evar, events, p)); 856 857 if (ISWSDISPLAYCTL(dev)) 858 return (0); 859 860 scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]; 861 862 if (!WSSCREEN_HAS_TTY(scr)) 863 return (ENODEV); 864 865 tp = scr->scr_tty; 866 return ((*tp->t_linesw->l_poll)(tp, events, p)); 867 } 868 869 int 870 wsdisplaykqfilter(dev, kn) 871 dev_t dev; 872 struct knote *kn; 873 { 874 struct wsdisplay_softc *sc = 875 device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 876 struct wsscreen *scr; 877 878 if (ISWSDISPLAYCTL(dev)) 879 return (0); 880 881 scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]; 882 883 if (WSSCREEN_HAS_TTY(scr)) 884 return (ttykqfilter(dev, kn)); 885 else 886 return (0); 887 } 888 889 struct tty * 890 wsdisplaytty(dev_t dev) 891 { 892 struct wsdisplay_softc *sc; 893 struct wsscreen *scr; 894 895 sc = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 896 897 if (ISWSDISPLAYSTAT(dev)) 898 panic("wsdisplaytty() on status device"); 899 900 if (ISWSDISPLAYCTL(dev)) 901 panic("wsdisplaytty() on ctl device"); 902 903 scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]; 904 905 return (scr->scr_tty); 906 } 907 908 int 909 wsdisplayioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p) 910 { 911 struct wsdisplay_softc *sc; 912 struct tty *tp; 913 int error; 914 struct wsscreen *scr; 915 916 sc = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 917 918 #ifdef WSDISPLAY_COMPAT_USL 919 error = wsdisplay_usl_ioctl1(sc, cmd, data, flag, p); 920 if (error != EPASSTHROUGH) 921 return (error); 922 #endif 923 924 if (ISWSDISPLAYSTAT(dev)) 925 return (wsdisplay_stat_ioctl(sc, cmd, data, flag, p)); 926 927 if (ISWSDISPLAYCTL(dev)) 928 return (wsdisplay_cfg_ioctl(sc, cmd, data, flag, p)); 929 930 scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]; 931 932 if (WSSCREEN_HAS_TTY(scr)) { 933 tp = scr->scr_tty; 934 935 /* printf("disc\n"); */ 936 /* do the line discipline ioctls first */ 937 error = (*tp->t_linesw->l_ioctl)(tp, cmd, data, flag, p); 938 if (error != EPASSTHROUGH) 939 return (error); 940 941 /* printf("tty\n"); */ 942 /* then the tty ioctls */ 943 error = ttioctl(tp, cmd, data, flag, p); 944 if (error != EPASSTHROUGH) 945 return (error); 946 } 947 948 #ifdef WSDISPLAY_COMPAT_USL 949 error = wsdisplay_usl_ioctl2(sc, scr, cmd, data, flag, p); 950 if (error != EPASSTHROUGH) 951 return (error); 952 #endif 953 954 return (wsdisplay_internal_ioctl(sc, scr, cmd, data, flag, p)); 955 } 956 957 int 958 wsdisplay_param(struct device *dev, u_long cmd, struct wsdisplay_param *dp) 959 { 960 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)dev; 961 return ((*sc->sc_accessops->ioctl)(sc->sc_accesscookie, cmd, 962 (caddr_t)dp, 0, NULL)); 963 } 964 965 int 966 wsdisplay_internal_ioctl(struct wsdisplay_softc *sc, struct wsscreen *scr, 967 u_long cmd, caddr_t data, int flag, struct proc *p) 968 { 969 int error; 970 char namebuf[16]; 971 struct wsdisplay_font fd; 972 973 #if NWSKBD > 0 974 struct wsevsrc *inp; 975 976 #ifdef WSDISPLAY_COMPAT_RAWKBD 977 switch (cmd) { 978 case WSKBDIO_SETMODE: 979 scr->scr_rawkbd = (*(int *)data == WSKBD_RAW); 980 return (wsdisplay_update_rawkbd(sc, scr)); 981 case WSKBDIO_GETMODE: 982 *(int *)data = (scr->scr_rawkbd ? 983 WSKBD_RAW : WSKBD_TRANSLATED); 984 return (0); 985 } 986 #endif 987 inp = sc->sc_input; 988 if (inp == NULL) 989 return (ENXIO); 990 error = wsevsrc_display_ioctl(inp, cmd, data, flag, p); 991 if (error != EPASSTHROUGH) 992 return (error); 993 #endif /* NWSKBD > 0 */ 994 995 switch (cmd) { 996 case WSDISPLAYIO_GMODE: 997 *(u_int *)data = (scr->scr_flags & SCR_GRAPHICS ? 998 WSDISPLAYIO_MODE_MAPPED : 999 WSDISPLAYIO_MODE_EMUL); 1000 return (0); 1001 1002 case WSDISPLAYIO_SMODE: 1003 #define d (*(int *)data) 1004 if (d != WSDISPLAYIO_MODE_EMUL && 1005 d != WSDISPLAYIO_MODE_MAPPED) 1006 return (EINVAL); 1007 1008 if (WSSCREEN_HAS_EMULATOR(scr)) { 1009 scr->scr_flags &= ~SCR_GRAPHICS; 1010 if (d == WSDISPLAYIO_MODE_MAPPED) 1011 scr->scr_flags |= SCR_GRAPHICS; 1012 } else if (d == WSDISPLAYIO_MODE_EMUL) 1013 return (EINVAL); 1014 1015 (void)(*sc->sc_accessops->ioctl)(sc->sc_accesscookie, cmd, data, 1016 flag, p); 1017 1018 return (0); 1019 #undef d 1020 1021 case WSDISPLAYIO_SFONT: 1022 #define d ((struct wsdisplay_usefontdata *)data) 1023 if (!sc->sc_accessops->load_font) 1024 return (EINVAL); 1025 if (d->name) { 1026 error = copyinstr(d->name, namebuf, sizeof(namebuf), 0); 1027 if (error) 1028 return (error); 1029 fd.name = namebuf; 1030 } else 1031 fd.name = 0; 1032 fd.data = 0; 1033 error = (*sc->sc_accessops->load_font)(sc->sc_accesscookie, 1034 scr->scr_dconf->emulcookie, &fd); 1035 if (!error && WSSCREEN_HAS_EMULATOR(scr)) 1036 (*scr->scr_dconf->wsemul->reset) 1037 (scr->scr_dconf->wsemulcookie, WSEMUL_SYNCFONT); 1038 return (error); 1039 #undef d 1040 1041 #if defined(WSDISPLAY_CHARFUNCS) 1042 case WSDISPLAYIO_GETWSCHAR: 1043 #define d ((struct wsdisplay_char *)data) 1044 if (!sc->sc_accessops->getwschar) 1045 return (EINVAL); 1046 return ((*sc->sc_accessops->getwschar) 1047 (scr->scr_dconf->emulcookie, d)); 1048 #undef d 1049 1050 case WSDISPLAYIO_PUTWSCHAR: 1051 #define d ((struct wsdisplay_char *)data) 1052 if (!sc->sc_accessops->putwschar) 1053 return (EINVAL); 1054 return ((*sc->sc_accessops->putwschar) 1055 (scr->scr_dconf->emulcookie, d)); 1056 #undef d 1057 return 1; 1058 #endif /* WSDISPLAY_CHARFUNCS */ 1059 1060 } 1061 1062 /* check ioctls for display */ 1063 return ((*sc->sc_accessops->ioctl)(sc->sc_accesscookie, cmd, data, 1064 flag, p)); 1065 } 1066 1067 int 1068 wsdisplay_stat_ioctl(struct wsdisplay_softc *sc, u_long cmd, caddr_t data, 1069 int flag, struct proc *p) 1070 { 1071 switch (cmd) { 1072 case WSDISPLAYIO_GETACTIVESCREEN: 1073 *(int*)data = wsdisplay_getactivescreen(sc); 1074 return (0); 1075 } 1076 1077 return (EPASSTHROUGH); 1078 } 1079 1080 int 1081 wsdisplay_cfg_ioctl(struct wsdisplay_softc *sc, u_long cmd, caddr_t data, 1082 int flag, struct proc *p) 1083 { 1084 int error; 1085 char *type, typebuf[16], *emul, emulbuf[16]; 1086 void *buf; 1087 u_int fontsz; 1088 #if defined(COMPAT_14) && NWSKBD > 0 1089 struct wsmux_device wsmuxdata; 1090 #endif 1091 #if NWSKBD > 0 1092 struct wsevsrc *inp; 1093 #endif 1094 1095 switch (cmd) { 1096 case WSDISPLAYIO_ADDSCREEN: 1097 #define d ((struct wsdisplay_addscreendata *)data) 1098 if (d->screentype) { 1099 error = copyinstr(d->screentype, typebuf, 1100 sizeof(typebuf), 0); 1101 if (error) 1102 return (error); 1103 type = typebuf; 1104 } else 1105 type = 0; 1106 if (d->emul) { 1107 error = copyinstr(d->emul, emulbuf, sizeof(emulbuf),0); 1108 if (error) 1109 return (error); 1110 emul = emulbuf; 1111 } else 1112 emul = 0; 1113 1114 if ((error = wsdisplay_addscreen(sc, d->idx, type, emul)) == 0) 1115 wsdisplay_addscreen_print(sc, d->idx, 0); 1116 return (error); 1117 #undef d 1118 case WSDISPLAYIO_DELSCREEN: 1119 #define d ((struct wsdisplay_delscreendata *)data) 1120 return (wsdisplay_delscreen(sc, d->idx, d->flags)); 1121 #undef d 1122 case WSDISPLAYIO_LDFONT: 1123 #define d ((struct wsdisplay_font *)data) 1124 if (!sc->sc_accessops->load_font) 1125 return (EINVAL); 1126 if (d->name) { 1127 error = copyinstr(d->name, typebuf, sizeof(typebuf), 0); 1128 if (error) 1129 return (error); 1130 d->name = typebuf; 1131 } else 1132 d->name = "loaded"; /* ??? */ 1133 fontsz = d->fontheight * d->stride * d->numchars; 1134 if (fontsz > WSDISPLAY_MAXFONTSZ) 1135 return (EINVAL); 1136 1137 buf = malloc(fontsz, M_DEVBUF, M_WAITOK); 1138 error = copyin(d->data, buf, fontsz); 1139 if (error) { 1140 free(buf, M_DEVBUF); 1141 return (error); 1142 } 1143 d->data = buf; 1144 error = 1145 (*sc->sc_accessops->load_font)(sc->sc_accesscookie, 0, d); 1146 free(buf, M_DEVBUF); 1147 #undef d 1148 return (error); 1149 1150 #if NWSKBD > 0 1151 #ifdef COMPAT_14 1152 case _O_WSDISPLAYIO_SETKEYBOARD: 1153 #define d ((struct wsdisplay_kbddata *)data) 1154 inp = sc->sc_input; 1155 if (inp == NULL) 1156 return (ENXIO); 1157 switch (d->op) { 1158 case _O_WSDISPLAY_KBD_ADD: 1159 if (d->idx == -1) { 1160 d->idx = wskbd_pickfree(); 1161 if (d->idx == -1) 1162 return (ENXIO); 1163 } 1164 wsmuxdata.type = WSMUX_KBD; 1165 wsmuxdata.idx = d->idx; 1166 return (wsevsrc_ioctl(inp, WSMUX_ADD_DEVICE, 1167 &wsmuxdata, flag, p)); 1168 case _O_WSDISPLAY_KBD_DEL: 1169 wsmuxdata.type = WSMUX_KBD; 1170 wsmuxdata.idx = d->idx; 1171 return (wsevsrc_ioctl(inp, WSMUX_REMOVE_DEVICE, 1172 &wsmuxdata, flag, p)); 1173 default: 1174 return (EINVAL); 1175 } 1176 #undef d 1177 #endif 1178 1179 case WSMUXIO_ADD_DEVICE: 1180 #define d ((struct wsmux_device *)data) 1181 if (d->idx == -1 && d->type == WSMUX_KBD) 1182 d->idx = wskbd_pickfree(); 1183 #undef d 1184 /* fall into */ 1185 case WSMUXIO_INJECTEVENT: 1186 case WSMUXIO_REMOVE_DEVICE: 1187 case WSMUXIO_LIST_DEVICES: 1188 inp = sc->sc_input; 1189 if (inp == NULL) 1190 return (ENXIO); 1191 return (wsevsrc_ioctl(inp, cmd, data, flag, p)); 1192 #endif /* NWSKBD > 0 */ 1193 1194 } 1195 return (EPASSTHROUGH); 1196 } 1197 1198 int 1199 wsdisplay_stat_inject(struct device *dev, u_int type, int value) 1200 { 1201 struct wsdisplay_softc *sc = (struct wsdisplay_softc *) dev; 1202 struct wseventvar *evar; 1203 struct wscons_event *ev; 1204 struct timeval thistime; 1205 int put; 1206 1207 evar = &sc->evar; 1208 1209 if (evar == NULL) 1210 return (0); 1211 1212 if (evar->q == NULL) 1213 return (1); 1214 1215 put = evar->put; 1216 ev = &evar->q[put]; 1217 put = (put + 1) % WSEVENT_QSIZE; 1218 if (put == evar->get) { 1219 log(LOG_WARNING, "wsdisplay: event queue overflow\n"); 1220 return (1); 1221 } 1222 ev->type = type; 1223 ev->value = value; 1224 microtime(&thistime); 1225 TIMEVAL_TO_TIMESPEC(&thistime, &ev->time); 1226 evar->put = put; 1227 WSEVENT_WAKEUP(evar); 1228 1229 return (0); 1230 } 1231 1232 paddr_t 1233 wsdisplaymmap(dev_t dev, off_t offset, int prot) 1234 { 1235 struct wsdisplay_softc *sc = 1236 device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 1237 struct wsscreen *scr; 1238 1239 if (ISWSDISPLAYSTAT(dev)) 1240 return (-1); 1241 1242 if (ISWSDISPLAYCTL(dev)) 1243 return (-1); 1244 1245 scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]; 1246 1247 if (!(scr->scr_flags & SCR_GRAPHICS)) 1248 return (-1); 1249 1250 /* pass mmap to display */ 1251 return ((*sc->sc_accessops->mmap)(sc->sc_accesscookie, offset, prot)); 1252 } 1253 1254 void 1255 wsdisplaystart(struct tty *tp) 1256 { 1257 struct wsdisplay_softc *sc; 1258 struct wsscreen *scr; 1259 int s, n; 1260 u_char *buf; 1261 1262 s = spltty(); 1263 if (tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP)) { 1264 splx(s); 1265 return; 1266 } 1267 sc = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(tp->t_dev)); 1268 scr = sc->sc_scr[WSDISPLAYSCREEN(tp->t_dev)]; 1269 if (scr->scr_hold_screen) { 1270 tp->t_state |= TS_TIMEOUT; 1271 splx(s); 1272 return; 1273 } 1274 tp->t_state |= TS_BUSY; 1275 splx(s); 1276 1277 /* 1278 * Drain output from ring buffer. 1279 * The output will normally be in one contiguous chunk, but when the 1280 * ring wraps, it will be in two pieces.. one at the end of the ring, 1281 * the other at the start. For performance, rather than loop here, 1282 * we output one chunk, see if there's another one, and if so, output 1283 * it too. 1284 */ 1285 1286 n = ndqb(&tp->t_outq, 0); 1287 buf = tp->t_outq.c_cf; 1288 1289 if (!(scr->scr_flags & SCR_GRAPHICS)) { 1290 KASSERT(WSSCREEN_HAS_EMULATOR(scr)); 1291 (*scr->scr_dconf->wsemul->output)(scr->scr_dconf->wsemulcookie, 1292 buf, n, 0); 1293 } 1294 ndflush(&tp->t_outq, n); 1295 1296 if ((n = ndqb(&tp->t_outq, 0)) > 0) { 1297 buf = tp->t_outq.c_cf; 1298 1299 if (!(scr->scr_flags & SCR_GRAPHICS)) { 1300 KASSERT(WSSCREEN_HAS_EMULATOR(scr)); 1301 (*scr->scr_dconf->wsemul->output)(scr->scr_dconf->wsemulcookie, 1302 buf, n, 0); 1303 } 1304 ndflush(&tp->t_outq, n); 1305 } 1306 1307 s = spltty(); 1308 tp->t_state &= ~TS_BUSY; 1309 /* Come back if there's more to do */ 1310 if (tp->t_outq.c_cc) { 1311 tp->t_state |= TS_TIMEOUT; 1312 callout_reset(&tp->t_rstrt_ch, (hz > 128) ? (hz / 128) : 1, 1313 ttrstrt, tp); 1314 } 1315 if (tp->t_outq.c_cc <= tp->t_lowat) { 1316 if (tp->t_state&TS_ASLEEP) { 1317 tp->t_state &= ~TS_ASLEEP; 1318 wakeup(&tp->t_outq); 1319 } 1320 selwakeup(&tp->t_wsel); 1321 } 1322 splx(s); 1323 } 1324 1325 void 1326 wsdisplaystop(struct tty *tp, int flag) 1327 { 1328 int s; 1329 1330 s = spltty(); 1331 if (ISSET(tp->t_state, TS_BUSY)) 1332 if (!ISSET(tp->t_state, TS_TTSTOP)) 1333 SET(tp->t_state, TS_FLUSH); 1334 splx(s); 1335 } 1336 1337 /* Set line parameters. */ 1338 int 1339 wsdisplayparam(struct tty *tp, struct termios *t) 1340 { 1341 1342 tp->t_ispeed = t->c_ispeed; 1343 tp->t_ospeed = t->c_ospeed; 1344 tp->t_cflag = t->c_cflag; 1345 return 0; 1346 } 1347 1348 /* 1349 * Callbacks for the emulation code. 1350 */ 1351 void 1352 wsdisplay_emulbell(void *v) 1353 { 1354 struct wsscreen *scr = v; 1355 1356 if (scr == NULL) /* console, before real attach */ 1357 return; 1358 1359 if (scr->scr_flags & SCR_GRAPHICS) /* can this happen? */ 1360 return; 1361 1362 (void) wsdisplay_internal_ioctl(scr->sc, scr, WSKBDIO_BELL, NULL, 1363 FWRITE, NULL); 1364 } 1365 1366 void 1367 wsdisplay_emulinput(void *v, const u_char *data, u_int count) 1368 { 1369 struct wsscreen *scr = v; 1370 struct tty *tp; 1371 1372 if (v == NULL) /* console, before real attach */ 1373 return; 1374 1375 if (scr->scr_flags & SCR_GRAPHICS) /* XXX can't happen */ 1376 return; 1377 if (!WSSCREEN_HAS_TTY(scr)) 1378 return; 1379 1380 tp = scr->scr_tty; 1381 while (count-- > 0) 1382 (*tp->t_linesw->l_rint)(*data++, tp); 1383 }; 1384 1385 /* 1386 * Calls from the keyboard interface. 1387 */ 1388 void 1389 wsdisplay_kbdinput(struct device *dev, keysym_t ks) 1390 { 1391 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)dev; 1392 struct wsscreen *scr; 1393 char *dp; 1394 int count; 1395 struct tty *tp; 1396 1397 KASSERT(sc != NULL); 1398 1399 scr = sc->sc_focus; 1400 1401 if (!scr || !WSSCREEN_HAS_TTY(scr)) 1402 return; 1403 1404 tp = scr->scr_tty; 1405 1406 if (KS_GROUP(ks) == KS_GROUP_Ascii) 1407 (*tp->t_linesw->l_rint)(KS_VALUE(ks), tp); 1408 else if (WSSCREEN_HAS_EMULATOR(scr)) { 1409 count = (*scr->scr_dconf->wsemul->translate) 1410 (scr->scr_dconf->wsemulcookie, ks, &dp); 1411 while (count-- > 0) 1412 (*tp->t_linesw->l_rint)(*dp++, tp); 1413 } 1414 } 1415 1416 #if defined(WSDISPLAY_COMPAT_RAWKBD) 1417 int 1418 wsdisplay_update_rawkbd(struct wsdisplay_softc *sc, struct wsscreen *scr) 1419 { 1420 #if NWSKBD > 0 1421 int s, raw, data, error; 1422 struct wsevsrc *inp; 1423 1424 s = spltty(); 1425 1426 raw = (scr ? scr->scr_rawkbd : 0); 1427 1428 if (scr != sc->sc_focus || 1429 sc->sc_rawkbd == raw) { 1430 splx(s); 1431 return (0); 1432 } 1433 1434 data = raw ? WSKBD_RAW : WSKBD_TRANSLATED; 1435 inp = sc->sc_input; 1436 if (inp == NULL) 1437 return (ENXIO); 1438 error = wsevsrc_display_ioctl(inp, WSKBDIO_SETMODE, &data, 0, 0); 1439 if (!error) 1440 sc->sc_rawkbd = raw; 1441 splx(s); 1442 return (error); 1443 #else 1444 return (0); 1445 #endif 1446 } 1447 #endif 1448 1449 int 1450 wsdisplay_switch3(void *arg, int error, int waitok) 1451 { 1452 struct wsdisplay_softc *sc = arg; 1453 int no; 1454 struct wsscreen *scr; 1455 1456 if (!(sc->sc_flags & SC_SWITCHPENDING)) { 1457 printf("wsdisplay_switch3: not switching\n"); 1458 return (EINVAL); 1459 } 1460 1461 no = sc->sc_screenwanted; 1462 if (no < 0 || no >= WSDISPLAY_MAXSCREEN) 1463 panic("wsdisplay_switch3: invalid screen %d", no); 1464 scr = sc->sc_scr[no]; 1465 if (!scr) { 1466 printf("wsdisplay_switch3: screen %d disappeared\n", no); 1467 error = ENXIO; 1468 } 1469 1470 if (error) { 1471 /* try to recover, avoid recursion */ 1472 1473 if (sc->sc_oldscreen == WSDISPLAY_NULLSCREEN) { 1474 printf("wsdisplay_switch3: giving up\n"); 1475 sc->sc_focus = 0; 1476 #ifdef WSDISPLAY_COMPAT_RAWKBD 1477 wsdisplay_update_rawkbd(sc, 0); 1478 #endif 1479 sc->sc_flags &= ~SC_SWITCHPENDING; 1480 return (error); 1481 } 1482 1483 sc->sc_screenwanted = sc->sc_oldscreen; 1484 sc->sc_oldscreen = WSDISPLAY_NULLSCREEN; 1485 return (wsdisplay_switch1(arg, 0, waitok)); 1486 } 1487 1488 sc->sc_flags &= ~SC_SWITCHPENDING; 1489 1490 if (!error && (scr->scr_flags & SCR_WAITACTIVE)) 1491 wakeup(scr); 1492 return (error); 1493 } 1494 1495 int 1496 wsdisplay_switch2(void *arg, int error, int waitok) 1497 { 1498 struct wsdisplay_softc *sc = arg; 1499 int no; 1500 struct wsscreen *scr; 1501 1502 if (!(sc->sc_flags & SC_SWITCHPENDING)) { 1503 printf("wsdisplay_switch2: not switching\n"); 1504 return (EINVAL); 1505 } 1506 1507 no = sc->sc_screenwanted; 1508 if (no < 0 || no >= WSDISPLAY_MAXSCREEN) 1509 panic("wsdisplay_switch2: invalid screen %d", no); 1510 scr = sc->sc_scr[no]; 1511 if (!scr) { 1512 printf("wsdisplay_switch2: screen %d disappeared\n", no); 1513 error = ENXIO; 1514 } 1515 1516 if (error) { 1517 /* try to recover, avoid recursion */ 1518 1519 if (sc->sc_oldscreen == WSDISPLAY_NULLSCREEN) { 1520 printf("wsdisplay_switch2: giving up\n"); 1521 sc->sc_focus = 0; 1522 sc->sc_flags &= ~SC_SWITCHPENDING; 1523 return (error); 1524 } 1525 1526 sc->sc_screenwanted = sc->sc_oldscreen; 1527 sc->sc_oldscreen = WSDISPLAY_NULLSCREEN; 1528 return (wsdisplay_switch1(arg, 0, waitok)); 1529 } 1530 1531 sc->sc_focusidx = no; 1532 sc->sc_focus = scr; 1533 1534 #ifdef WSDISPLAY_COMPAT_RAWKBD 1535 (void) wsdisplay_update_rawkbd(sc, scr); 1536 #endif 1537 /* keyboard map??? */ 1538 1539 #define wsswitch_cb3 ((void (*)(void *, int, int))wsdisplay_switch3) 1540 if (scr->scr_syncops) { 1541 error = (*scr->scr_syncops->attach)(scr->scr_synccookie, waitok, 1542 sc->sc_isconsole && wsdisplay_cons_pollmode ? 0 : wsswitch_cb3, sc); 1543 if (error == EAGAIN) { 1544 /* switch will be done asynchronously */ 1545 return (0); 1546 } 1547 } 1548 1549 return (wsdisplay_switch3(sc, error, waitok)); 1550 } 1551 1552 int 1553 wsdisplay_switch1(void *arg, int error, int waitok) 1554 { 1555 struct wsdisplay_softc *sc = arg; 1556 int no; 1557 struct wsscreen *scr; 1558 1559 if (!(sc->sc_flags & SC_SWITCHPENDING)) { 1560 printf("wsdisplay_switch1: not switching\n"); 1561 return (EINVAL); 1562 } 1563 1564 no = sc->sc_screenwanted; 1565 if (no == WSDISPLAY_NULLSCREEN) { 1566 sc->sc_flags &= ~SC_SWITCHPENDING; 1567 if (!error) { 1568 sc->sc_focus = 0; 1569 } 1570 wakeup(sc); 1571 return (error); 1572 } 1573 if (no < 0 || no >= WSDISPLAY_MAXSCREEN) 1574 panic("wsdisplay_switch1: invalid screen %d", no); 1575 scr = sc->sc_scr[no]; 1576 if (!scr) { 1577 printf("wsdisplay_switch1: screen %d disappeared\n", no); 1578 error = ENXIO; 1579 } 1580 1581 if (error) { 1582 sc->sc_flags &= ~SC_SWITCHPENDING; 1583 return (error); 1584 } 1585 1586 #define wsswitch_cb2 ((void (*)(void *, int, int))wsdisplay_switch2) 1587 error = (*sc->sc_accessops->show_screen)(sc->sc_accesscookie, 1588 scr->scr_dconf->emulcookie, 1589 waitok, 1590 sc->sc_isconsole && wsdisplay_cons_pollmode ? 0 : wsswitch_cb2, sc); 1591 if (error == EAGAIN) { 1592 /* switch will be done asynchronously */ 1593 return (0); 1594 } 1595 1596 return (wsdisplay_switch2(sc, error, waitok)); 1597 } 1598 1599 int 1600 wsdisplay_switch(struct device *dev, int no, int waitok) 1601 { 1602 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)dev; 1603 int s, res = 0; 1604 struct wsscreen *scr; 1605 1606 if (no != WSDISPLAY_NULLSCREEN && 1607 (no < 0 || no >= WSDISPLAY_MAXSCREEN || !sc->sc_scr[no])) 1608 return (ENXIO); 1609 1610 wsdisplay_stat_inject(dev, WSCONS_EVENT_SCREEN_SWITCH, no); 1611 1612 s = spltty(); 1613 1614 if ((sc->sc_focus && no == sc->sc_focusidx) || 1615 (sc->sc_focus == NULL && no == WSDISPLAY_NULLSCREEN)) { 1616 splx(s); 1617 return (0); 1618 } 1619 1620 if (sc->sc_flags & SC_SWITCHPENDING) { 1621 splx(s); 1622 return (EBUSY); 1623 } 1624 1625 sc->sc_flags |= SC_SWITCHPENDING; 1626 sc->sc_screenwanted = no; 1627 1628 splx(s); 1629 1630 scr = sc->sc_focus; 1631 if (!scr) { 1632 sc->sc_oldscreen = WSDISPLAY_NULLSCREEN; 1633 return (wsdisplay_switch1(sc, 0, waitok)); 1634 } else 1635 sc->sc_oldscreen = sc->sc_focusidx; 1636 1637 #define wsswitch_cb1 ((void (*)(void *, int, int))wsdisplay_switch1) 1638 if (scr->scr_syncops) { 1639 res = (*scr->scr_syncops->detach)(scr->scr_synccookie, waitok, 1640 sc->sc_isconsole && wsdisplay_cons_pollmode ? 0 : wsswitch_cb1, sc); 1641 if (res == EAGAIN) { 1642 /* switch will be done asynchronously */ 1643 return (0); 1644 } 1645 } else if (scr->scr_flags & SCR_GRAPHICS) { 1646 /* no way to save state */ 1647 res = EBUSY; 1648 } 1649 1650 return (wsdisplay_switch1(sc, res, waitok)); 1651 } 1652 1653 void 1654 wsdisplay_reset(struct device *dev, enum wsdisplay_resetops op) 1655 { 1656 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)dev; 1657 struct wsscreen *scr; 1658 1659 KASSERT(sc != NULL); 1660 scr = sc->sc_focus; 1661 1662 if (!scr) 1663 return; 1664 1665 switch (op) { 1666 case WSDISPLAY_RESETEMUL: 1667 if (!WSSCREEN_HAS_EMULATOR(scr)) 1668 break; 1669 (*scr->scr_dconf->wsemul->reset)(scr->scr_dconf->wsemulcookie, 1670 WSEMUL_RESET); 1671 break; 1672 case WSDISPLAY_RESETCLOSE: 1673 wsdisplay_closescreen(sc, scr); 1674 break; 1675 } 1676 } 1677 1678 /* 1679 * Interface for (external) VT switch / process synchronization code 1680 */ 1681 int 1682 wsscreen_attach_sync(struct wsscreen *scr, const struct wscons_syncops *ops, 1683 void *cookie) 1684 { 1685 if (scr->scr_syncops) { 1686 /* 1687 * The screen is already claimed. 1688 * Check if the owner is still alive. 1689 */ 1690 if ((*scr->scr_syncops->check)(scr->scr_synccookie)) 1691 return (EBUSY); 1692 } 1693 scr->scr_syncops = ops; 1694 scr->scr_synccookie = cookie; 1695 return (0); 1696 } 1697 1698 int 1699 wsscreen_detach_sync(struct wsscreen *scr) 1700 { 1701 if (!scr->scr_syncops) 1702 return (EINVAL); 1703 scr->scr_syncops = 0; 1704 return (0); 1705 } 1706 1707 int 1708 wsscreen_lookup_sync(struct wsscreen *scr, 1709 const struct wscons_syncops *ops, /* used as ID */ 1710 void **cookiep) 1711 { 1712 if (!scr->scr_syncops || ops != scr->scr_syncops) 1713 return (EINVAL); 1714 *cookiep = scr->scr_synccookie; 1715 return (0); 1716 } 1717 1718 /* 1719 * Interface to virtual screen stuff 1720 */ 1721 int 1722 wsdisplay_maxscreenidx(struct wsdisplay_softc *sc) 1723 { 1724 return (WSDISPLAY_MAXSCREEN - 1); 1725 } 1726 1727 int 1728 wsdisplay_screenstate(struct wsdisplay_softc *sc, int idx) 1729 { 1730 if (idx < 0 || idx >= WSDISPLAY_MAXSCREEN) 1731 return (EINVAL); 1732 if (!sc->sc_scr[idx]) 1733 return (ENXIO); 1734 return ((sc->sc_scr[idx]->scr_flags & SCR_OPEN) ? EBUSY : 0); 1735 } 1736 1737 int 1738 wsdisplay_getactivescreen(struct wsdisplay_softc *sc) 1739 { 1740 return (sc->sc_focus ? sc->sc_focusidx : WSDISPLAY_NULLSCREEN); 1741 } 1742 1743 int 1744 wsscreen_switchwait(struct wsdisplay_softc *sc, int no) 1745 { 1746 struct wsscreen *scr; 1747 int s, res = 0; 1748 1749 if (no == WSDISPLAY_NULLSCREEN) { 1750 s = spltty(); 1751 while (sc->sc_focus && res == 0) { 1752 res = tsleep(sc, PCATCH, "wswait", 0); 1753 } 1754 splx(s); 1755 return (res); 1756 } 1757 1758 if (no < 0 || no >= WSDISPLAY_MAXSCREEN) 1759 return (ENXIO); 1760 scr = sc->sc_scr[no]; 1761 if (!scr) 1762 return (ENXIO); 1763 1764 s = spltty(); 1765 if (scr != sc->sc_focus) { 1766 scr->scr_flags |= SCR_WAITACTIVE; 1767 res = tsleep(scr, PCATCH, "wswait", 0); 1768 if (scr != sc->sc_scr[no]) 1769 res = ENXIO; /* disappeared in the meantime */ 1770 else 1771 scr->scr_flags &= ~SCR_WAITACTIVE; 1772 } 1773 splx(s); 1774 return (res); 1775 } 1776 1777 void 1778 wsdisplay_kbdholdscreen(struct device *dev, int hold) 1779 { 1780 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)dev; 1781 struct wsscreen *scr; 1782 1783 scr = sc->sc_focus; 1784 1785 if (hold) 1786 scr->scr_hold_screen = 1; 1787 else { 1788 scr->scr_hold_screen = 0; 1789 callout_reset(&scr->scr_tty->t_rstrt_ch, 0, 1790 ttrstrt, scr->scr_tty); /* "immediate" */ 1791 } 1792 } 1793 1794 #if NWSKBD > 0 1795 void 1796 wsdisplay_set_console_kbd(struct wsevsrc *src) 1797 { 1798 if (wsdisplay_console_device == NULL) { 1799 src->me_dispdv = NULL; 1800 return; 1801 } 1802 #if NWSMUX > 0 1803 if (wsmux_attach_sc((struct wsmux_softc *) 1804 wsdisplay_console_device->sc_input, src)) { 1805 src->me_dispdv = NULL; 1806 return; 1807 } 1808 #else 1809 wsdisplay_console_device->sc_input = src; 1810 #endif 1811 src->me_dispdv = &wsdisplay_console_device->sc_dv; 1812 } 1813 #endif /* NWSKBD > 0 */ 1814 1815 /* 1816 * Console interface. 1817 */ 1818 void 1819 wsdisplay_cnputc(dev_t dev, int i) 1820 { 1821 struct wsscreen_internal *dc; 1822 char c = i; 1823 1824 if (!wsdisplay_console_initted) 1825 return; 1826 1827 if (wsdisplay_console_device != NULL && 1828 (wsdisplay_console_device->sc_scr[0]->scr_flags & SCR_GRAPHICS)) 1829 return; 1830 1831 dc = &wsdisplay_console_conf; 1832 (*dc->wsemul->output)(dc->wsemulcookie, &c, 1, 1); 1833 } 1834 1835 static int 1836 wsdisplay_getc_dummy(dev_t dev) 1837 { 1838 /* panic? */ 1839 return (0); 1840 } 1841 1842 static void 1843 wsdisplay_pollc(dev_t dev, int on) 1844 { 1845 1846 wsdisplay_cons_pollmode = on; 1847 1848 /* notify to fb drivers */ 1849 if (wsdisplay_console_device != NULL && 1850 wsdisplay_console_device->sc_accessops->pollc != NULL) 1851 (*wsdisplay_console_device->sc_accessops->pollc) 1852 (wsdisplay_console_device->sc_accesscookie, on); 1853 1854 /* notify to kbd drivers */ 1855 if (wsdisplay_cons_kbd_pollc) 1856 (*wsdisplay_cons_kbd_pollc)(NODEV, on); 1857 } 1858 1859 void 1860 wsdisplay_set_cons_kbd(int (*get)(dev_t), void (*poll)(dev_t, int), 1861 void (*bell)(dev_t, u_int, u_int, u_int)) 1862 { 1863 wsdisplay_cons.cn_getc = get; 1864 wsdisplay_cons.cn_bell = bell; 1865 wsdisplay_cons_kbd_pollc = poll; 1866 } 1867 1868 void 1869 wsdisplay_unset_cons_kbd(void) 1870 { 1871 wsdisplay_cons.cn_getc = wsdisplay_getc_dummy; 1872 wsdisplay_cons.cn_bell = NULL; 1873 wsdisplay_cons_kbd_pollc = 0; 1874 } 1875 1876 /* 1877 * Switch the console display to it's first screen. 1878 */ 1879 void 1880 wsdisplay_switchtoconsole(void) 1881 { 1882 struct wsdisplay_softc *sc; 1883 struct wsscreen *scr; 1884 1885 if (wsdisplay_console_device != NULL) { 1886 sc = wsdisplay_console_device; 1887 scr = sc->sc_scr[0]; 1888 (*sc->sc_accessops->show_screen)(sc->sc_accesscookie, 1889 scr->scr_dconf->emulcookie, 1890 0, NULL, NULL); 1891 } 1892 } 1893 1894 /* 1895 * Switch the console at shutdown. 1896 */ 1897 static void 1898 wsdisplay_shutdownhook(void *arg) 1899 { 1900 1901 wsdisplay_switchtoconsole(); 1902 } 1903
Indexes created Wed Oct 22 13:09:56 GMT 2025