wsdisplay.c revision 1.64
1 /* $NetBSD: wsdisplay.c,v 1.64 2002/06/26 23:05:36 christos 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 1.64 2002/06/26 23:05:36 christos 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 struct tty * 870 wsdisplaytty(dev_t dev) 871 { 872 struct wsdisplay_softc *sc; 873 struct wsscreen *scr; 874 875 sc = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 876 877 if (ISWSDISPLAYSTAT(dev)) 878 panic("wsdisplaytty() on status device"); 879 880 if (ISWSDISPLAYCTL(dev)) 881 panic("wsdisplaytty() on ctl device"); 882 883 scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]; 884 885 return (scr->scr_tty); 886 } 887 888 int 889 wsdisplayioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p) 890 { 891 struct wsdisplay_softc *sc; 892 struct tty *tp; 893 int error; 894 struct wsscreen *scr; 895 896 sc = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 897 898 #ifdef WSDISPLAY_COMPAT_USL 899 error = wsdisplay_usl_ioctl1(sc, cmd, data, flag, p); 900 if (error != EPASSTHROUGH) 901 return (error); 902 #endif 903 904 if (ISWSDISPLAYSTAT(dev)) 905 return (wsdisplay_stat_ioctl(sc, cmd, data, flag, p)); 906 907 if (ISWSDISPLAYCTL(dev)) 908 return (wsdisplay_cfg_ioctl(sc, cmd, data, flag, p)); 909 910 scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]; 911 912 if (WSSCREEN_HAS_TTY(scr)) { 913 tp = scr->scr_tty; 914 915 /* printf("disc\n"); */ 916 /* do the line discipline ioctls first */ 917 error = (*tp->t_linesw->l_ioctl)(tp, cmd, data, flag, p); 918 if (error != EPASSTHROUGH) 919 return (error); 920 921 /* printf("tty\n"); */ 922 /* then the tty ioctls */ 923 error = ttioctl(tp, cmd, data, flag, p); 924 if (error != EPASSTHROUGH) 925 return (error); 926 } 927 928 #ifdef WSDISPLAY_COMPAT_USL 929 error = wsdisplay_usl_ioctl2(sc, scr, cmd, data, flag, p); 930 if (error != EPASSTHROUGH) 931 return (error); 932 #endif 933 934 return (wsdisplay_internal_ioctl(sc, scr, cmd, data, flag, p)); 935 } 936 937 int 938 wsdisplay_param(struct device *dev, u_long cmd, struct wsdisplay_param *dp) 939 { 940 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)dev; 941 return ((*sc->sc_accessops->ioctl)(sc->sc_accesscookie, cmd, 942 (caddr_t)dp, 0, NULL)); 943 } 944 945 int 946 wsdisplay_internal_ioctl(struct wsdisplay_softc *sc, struct wsscreen *scr, 947 u_long cmd, caddr_t data, int flag, struct proc *p) 948 { 949 int error; 950 char namebuf[16]; 951 struct wsdisplay_font fd; 952 953 #if NWSKBD > 0 954 struct wsevsrc *inp; 955 956 #ifdef WSDISPLAY_COMPAT_RAWKBD 957 switch (cmd) { 958 case WSKBDIO_SETMODE: 959 scr->scr_rawkbd = (*(int *)data == WSKBD_RAW); 960 return (wsdisplay_update_rawkbd(sc, scr)); 961 case WSKBDIO_GETMODE: 962 *(int *)data = (scr->scr_rawkbd ? 963 WSKBD_RAW : WSKBD_TRANSLATED); 964 return (0); 965 } 966 #endif 967 inp = sc->sc_input; 968 if (inp == NULL) 969 return (ENXIO); 970 error = wsevsrc_display_ioctl(inp, cmd, data, flag, p); 971 if (error != EPASSTHROUGH) 972 return (error); 973 #endif /* NWSKBD > 0 */ 974 975 switch (cmd) { 976 case WSDISPLAYIO_GMODE: 977 *(u_int *)data = (scr->scr_flags & SCR_GRAPHICS ? 978 WSDISPLAYIO_MODE_MAPPED : 979 WSDISPLAYIO_MODE_EMUL); 980 return (0); 981 982 case WSDISPLAYIO_SMODE: 983 #define d (*(int *)data) 984 if (d != WSDISPLAYIO_MODE_EMUL && 985 d != WSDISPLAYIO_MODE_MAPPED) 986 return (EINVAL); 987 988 if (WSSCREEN_HAS_EMULATOR(scr)) { 989 scr->scr_flags &= ~SCR_GRAPHICS; 990 if (d == WSDISPLAYIO_MODE_MAPPED) 991 scr->scr_flags |= SCR_GRAPHICS; 992 } else if (d == WSDISPLAYIO_MODE_EMUL) 993 return (EINVAL); 994 995 (void)(*sc->sc_accessops->ioctl)(sc->sc_accesscookie, cmd, data, 996 flag, p); 997 998 return (0); 999 #undef d 1000 1001 case WSDISPLAYIO_SFONT: 1002 #define d ((struct wsdisplay_usefontdata *)data) 1003 if (!sc->sc_accessops->load_font) 1004 return (EINVAL); 1005 if (d->name) { 1006 error = copyinstr(d->name, namebuf, sizeof(namebuf), 0); 1007 if (error) 1008 return (error); 1009 fd.name = namebuf; 1010 } else 1011 fd.name = 0; 1012 fd.data = 0; 1013 error = (*sc->sc_accessops->load_font)(sc->sc_accesscookie, 1014 scr->scr_dconf->emulcookie, &fd); 1015 if (!error && WSSCREEN_HAS_EMULATOR(scr)) 1016 (*scr->scr_dconf->wsemul->reset) 1017 (scr->scr_dconf->wsemulcookie, WSEMUL_SYNCFONT); 1018 return (error); 1019 #undef d 1020 1021 #if defined(WSDISPLAY_CHARFUNCS) 1022 case WSDISPLAYIO_GETWSCHAR: 1023 #define d ((struct wsdisplay_char *)data) 1024 if (!sc->sc_accessops->getwschar) 1025 return (EINVAL); 1026 return ((*sc->sc_accessops->getwschar) 1027 (scr->scr_dconf->emulcookie, d)); 1028 #undef d 1029 1030 case WSDISPLAYIO_PUTWSCHAR: 1031 #define d ((struct wsdisplay_char *)data) 1032 if (!sc->sc_accessops->putwschar) 1033 return (EINVAL); 1034 return ((*sc->sc_accessops->putwschar) 1035 (scr->scr_dconf->emulcookie, d)); 1036 #undef d 1037 return 1; 1038 #endif /* WSDISPLAY_CHARFUNCS */ 1039 1040 } 1041 1042 /* check ioctls for display */ 1043 return ((*sc->sc_accessops->ioctl)(sc->sc_accesscookie, cmd, data, 1044 flag, p)); 1045 } 1046 1047 int 1048 wsdisplay_stat_ioctl(struct wsdisplay_softc *sc, u_long cmd, caddr_t data, 1049 int flag, struct proc *p) 1050 { 1051 switch (cmd) { 1052 case WSDISPLAYIO_GETACTIVESCREEN: 1053 *(int*)data = wsdisplay_getactivescreen(sc); 1054 return (0); 1055 } 1056 1057 return (EPASSTHROUGH); 1058 } 1059 1060 int 1061 wsdisplay_cfg_ioctl(struct wsdisplay_softc *sc, u_long cmd, caddr_t data, 1062 int flag, struct proc *p) 1063 { 1064 int error; 1065 char *type, typebuf[16], *emul, emulbuf[16]; 1066 void *buf; 1067 u_int fontsz; 1068 #if defined(COMPAT_14) && NWSKBD > 0 1069 struct wsmux_device wsmuxdata; 1070 #endif 1071 #if NWSKBD > 0 1072 struct wsevsrc *inp; 1073 #endif 1074 1075 switch (cmd) { 1076 case WSDISPLAYIO_ADDSCREEN: 1077 #define d ((struct wsdisplay_addscreendata *)data) 1078 if (d->screentype) { 1079 error = copyinstr(d->screentype, typebuf, 1080 sizeof(typebuf), 0); 1081 if (error) 1082 return (error); 1083 type = typebuf; 1084 } else 1085 type = 0; 1086 if (d->emul) { 1087 error = copyinstr(d->emul, emulbuf, sizeof(emulbuf),0); 1088 if (error) 1089 return (error); 1090 emul = emulbuf; 1091 } else 1092 emul = 0; 1093 1094 if ((error = wsdisplay_addscreen(sc, d->idx, type, emul)) == 0) 1095 wsdisplay_addscreen_print(sc, d->idx, 0); 1096 return (error); 1097 #undef d 1098 case WSDISPLAYIO_DELSCREEN: 1099 #define d ((struct wsdisplay_delscreendata *)data) 1100 return (wsdisplay_delscreen(sc, d->idx, d->flags)); 1101 #undef d 1102 case WSDISPLAYIO_LDFONT: 1103 #define d ((struct wsdisplay_font *)data) 1104 if (!sc->sc_accessops->load_font) 1105 return (EINVAL); 1106 if (d->name) { 1107 error = copyinstr(d->name, typebuf, sizeof(typebuf), 0); 1108 if (error) 1109 return (error); 1110 d->name = typebuf; 1111 } else 1112 d->name = "loaded"; /* ??? */ 1113 fontsz = d->fontheight * d->stride * d->numchars; 1114 if (fontsz > WSDISPLAY_MAXFONTSZ) 1115 return (EINVAL); 1116 1117 buf = malloc(fontsz, M_DEVBUF, M_WAITOK); 1118 error = copyin(d->data, buf, fontsz); 1119 if (error) { 1120 free(buf, M_DEVBUF); 1121 return (error); 1122 } 1123 d->data = buf; 1124 error = 1125 (*sc->sc_accessops->load_font)(sc->sc_accesscookie, 0, d); 1126 free(buf, M_DEVBUF); 1127 #undef d 1128 return (error); 1129 1130 #if NWSKBD > 0 1131 #ifdef COMPAT_14 1132 case _O_WSDISPLAYIO_SETKEYBOARD: 1133 #define d ((struct wsdisplay_kbddata *)data) 1134 inp = sc->sc_input; 1135 if (inp == NULL) 1136 return (ENXIO); 1137 switch (d->op) { 1138 case _O_WSDISPLAY_KBD_ADD: 1139 if (d->idx == -1) { 1140 d->idx = wskbd_pickfree(); 1141 if (d->idx == -1) 1142 return (ENXIO); 1143 } 1144 wsmuxdata.type = WSMUX_KBD; 1145 wsmuxdata.idx = d->idx; 1146 return (wsevsrc_ioctl(inp, WSMUX_ADD_DEVICE, 1147 &wsmuxdata, flag, p)); 1148 case _O_WSDISPLAY_KBD_DEL: 1149 wsmuxdata.type = WSMUX_KBD; 1150 wsmuxdata.idx = d->idx; 1151 return (wsevsrc_ioctl(inp, WSMUX_REMOVE_DEVICE, 1152 &wsmuxdata, flag, p)); 1153 default: 1154 return (EINVAL); 1155 } 1156 #undef d 1157 #endif 1158 1159 case WSMUXIO_ADD_DEVICE: 1160 #define d ((struct wsmux_device *)data) 1161 if (d->idx == -1 && d->type == WSMUX_KBD) 1162 d->idx = wskbd_pickfree(); 1163 #undef d 1164 /* fall into */ 1165 case WSMUXIO_INJECTEVENT: 1166 case WSMUXIO_REMOVE_DEVICE: 1167 case WSMUXIO_LIST_DEVICES: 1168 inp = sc->sc_input; 1169 if (inp == NULL) 1170 return (ENXIO); 1171 return (wsevsrc_ioctl(inp, cmd, data, flag, p)); 1172 #endif /* NWSKBD > 0 */ 1173 1174 } 1175 return (EPASSTHROUGH); 1176 } 1177 1178 int 1179 wsdisplay_stat_inject(struct device *dev, u_int type, int value) 1180 { 1181 struct wsdisplay_softc *sc = (struct wsdisplay_softc *) dev; 1182 struct wseventvar *evar; 1183 struct wscons_event *ev; 1184 struct timeval thistime; 1185 int put; 1186 1187 evar = &sc->evar; 1188 1189 if (evar == NULL) 1190 return (0); 1191 1192 if (evar->q == NULL) 1193 return (1); 1194 1195 put = evar->put; 1196 ev = &evar->q[put]; 1197 put = (put + 1) % WSEVENT_QSIZE; 1198 if (put == evar->get) { 1199 log(LOG_WARNING, "wsdisplay: event queue overflow\n"); 1200 return (1); 1201 } 1202 ev->type = type; 1203 ev->value = value; 1204 microtime(&thistime); 1205 TIMEVAL_TO_TIMESPEC(&thistime, &ev->time); 1206 evar->put = put; 1207 WSEVENT_WAKEUP(evar); 1208 1209 return (0); 1210 } 1211 1212 paddr_t 1213 wsdisplaymmap(dev_t dev, off_t offset, int prot) 1214 { 1215 struct wsdisplay_softc *sc = 1216 device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 1217 struct wsscreen *scr; 1218 1219 if (ISWSDISPLAYSTAT(dev)) 1220 return (-1); 1221 1222 if (ISWSDISPLAYCTL(dev)) 1223 return (-1); 1224 1225 scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]; 1226 1227 if (!(scr->scr_flags & SCR_GRAPHICS)) 1228 return (-1); 1229 1230 /* pass mmap to display */ 1231 return ((*sc->sc_accessops->mmap)(sc->sc_accesscookie, offset, prot)); 1232 } 1233 1234 void 1235 wsdisplaystart(struct tty *tp) 1236 { 1237 struct wsdisplay_softc *sc; 1238 struct wsscreen *scr; 1239 int s, n; 1240 u_char *buf; 1241 1242 s = spltty(); 1243 if (tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP)) { 1244 splx(s); 1245 return; 1246 } 1247 sc = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(tp->t_dev)); 1248 scr = sc->sc_scr[WSDISPLAYSCREEN(tp->t_dev)]; 1249 if (scr->scr_hold_screen) { 1250 tp->t_state |= TS_TIMEOUT; 1251 splx(s); 1252 return; 1253 } 1254 tp->t_state |= TS_BUSY; 1255 splx(s); 1256 1257 /* 1258 * Drain output from ring buffer. 1259 * The output will normally be in one contiguous chunk, but when the 1260 * ring wraps, it will be in two pieces.. one at the end of the ring, 1261 * the other at the start. For performance, rather than loop here, 1262 * we output one chunk, see if there's another one, and if so, output 1263 * it too. 1264 */ 1265 1266 n = ndqb(&tp->t_outq, 0); 1267 buf = tp->t_outq.c_cf; 1268 1269 if (!(scr->scr_flags & SCR_GRAPHICS)) { 1270 KASSERT(WSSCREEN_HAS_EMULATOR(scr)); 1271 (*scr->scr_dconf->wsemul->output)(scr->scr_dconf->wsemulcookie, 1272 buf, n, 0); 1273 } 1274 ndflush(&tp->t_outq, n); 1275 1276 if ((n = ndqb(&tp->t_outq, 0)) > 0) { 1277 buf = tp->t_outq.c_cf; 1278 1279 if (!(scr->scr_flags & SCR_GRAPHICS)) { 1280 KASSERT(WSSCREEN_HAS_EMULATOR(scr)); 1281 (*scr->scr_dconf->wsemul->output)(scr->scr_dconf->wsemulcookie, 1282 buf, n, 0); 1283 } 1284 ndflush(&tp->t_outq, n); 1285 } 1286 1287 s = spltty(); 1288 tp->t_state &= ~TS_BUSY; 1289 /* Come back if there's more to do */ 1290 if (tp->t_outq.c_cc) { 1291 tp->t_state |= TS_TIMEOUT; 1292 callout_reset(&tp->t_rstrt_ch, (hz > 128) ? (hz / 128) : 1, 1293 ttrstrt, tp); 1294 } 1295 if (tp->t_outq.c_cc <= tp->t_lowat) { 1296 if (tp->t_state&TS_ASLEEP) { 1297 tp->t_state &= ~TS_ASLEEP; 1298 wakeup(&tp->t_outq); 1299 } 1300 selwakeup(&tp->t_wsel); 1301 } 1302 splx(s); 1303 } 1304 1305 void 1306 wsdisplaystop(struct tty *tp, int flag) 1307 { 1308 int s; 1309 1310 s = spltty(); 1311 if (ISSET(tp->t_state, TS_BUSY)) 1312 if (!ISSET(tp->t_state, TS_TTSTOP)) 1313 SET(tp->t_state, TS_FLUSH); 1314 splx(s); 1315 } 1316 1317 /* Set line parameters. */ 1318 int 1319 wsdisplayparam(struct tty *tp, struct termios *t) 1320 { 1321 1322 tp->t_ispeed = t->c_ispeed; 1323 tp->t_ospeed = t->c_ospeed; 1324 tp->t_cflag = t->c_cflag; 1325 return 0; 1326 } 1327 1328 /* 1329 * Callbacks for the emulation code. 1330 */ 1331 void 1332 wsdisplay_emulbell(void *v) 1333 { 1334 struct wsscreen *scr = v; 1335 1336 if (scr == NULL) /* console, before real attach */ 1337 return; 1338 1339 if (scr->scr_flags & SCR_GRAPHICS) /* can this happen? */ 1340 return; 1341 1342 (void) wsdisplay_internal_ioctl(scr->sc, scr, WSKBDIO_BELL, NULL, 1343 FWRITE, NULL); 1344 } 1345 1346 void 1347 wsdisplay_emulinput(void *v, const u_char *data, u_int count) 1348 { 1349 struct wsscreen *scr = v; 1350 struct tty *tp; 1351 1352 if (v == NULL) /* console, before real attach */ 1353 return; 1354 1355 if (scr->scr_flags & SCR_GRAPHICS) /* XXX can't happen */ 1356 return; 1357 if (!WSSCREEN_HAS_TTY(scr)) 1358 return; 1359 1360 tp = scr->scr_tty; 1361 while (count-- > 0) 1362 (*tp->t_linesw->l_rint)(*data++, tp); 1363 }; 1364 1365 /* 1366 * Calls from the keyboard interface. 1367 */ 1368 void 1369 wsdisplay_kbdinput(struct device *dev, keysym_t ks) 1370 { 1371 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)dev; 1372 struct wsscreen *scr; 1373 char *dp; 1374 int count; 1375 struct tty *tp; 1376 1377 KASSERT(sc != NULL); 1378 1379 scr = sc->sc_focus; 1380 1381 if (!scr || !WSSCREEN_HAS_TTY(scr)) 1382 return; 1383 1384 tp = scr->scr_tty; 1385 1386 if (KS_GROUP(ks) == KS_GROUP_Ascii) 1387 (*tp->t_linesw->l_rint)(KS_VALUE(ks), tp); 1388 else if (WSSCREEN_HAS_EMULATOR(scr)) { 1389 count = (*scr->scr_dconf->wsemul->translate) 1390 (scr->scr_dconf->wsemulcookie, ks, &dp); 1391 while (count-- > 0) 1392 (*tp->t_linesw->l_rint)(*dp++, tp); 1393 } 1394 } 1395 1396 #if defined(WSDISPLAY_COMPAT_RAWKBD) 1397 int 1398 wsdisplay_update_rawkbd(struct wsdisplay_softc *sc, struct wsscreen *scr) 1399 { 1400 #if NWSKBD > 0 1401 int s, raw, data, error; 1402 struct wsevsrc *inp; 1403 1404 s = spltty(); 1405 1406 raw = (scr ? scr->scr_rawkbd : 0); 1407 1408 if (scr != sc->sc_focus || 1409 sc->sc_rawkbd == raw) { 1410 splx(s); 1411 return (0); 1412 } 1413 1414 data = raw ? WSKBD_RAW : WSKBD_TRANSLATED; 1415 inp = sc->sc_input; 1416 if (inp == NULL) 1417 return (ENXIO); 1418 error = wsevsrc_display_ioctl(inp, WSKBDIO_SETMODE, &data, 0, 0); 1419 if (!error) 1420 sc->sc_rawkbd = raw; 1421 splx(s); 1422 return (error); 1423 #else 1424 return (0); 1425 #endif 1426 } 1427 #endif 1428 1429 int 1430 wsdisplay_switch3(void *arg, int error, int waitok) 1431 { 1432 struct wsdisplay_softc *sc = arg; 1433 int no; 1434 struct wsscreen *scr; 1435 1436 if (!(sc->sc_flags & SC_SWITCHPENDING)) { 1437 printf("wsdisplay_switch3: not switching\n"); 1438 return (EINVAL); 1439 } 1440 1441 no = sc->sc_screenwanted; 1442 if (no < 0 || no >= WSDISPLAY_MAXSCREEN) 1443 panic("wsdisplay_switch3: invalid screen %d", no); 1444 scr = sc->sc_scr[no]; 1445 if (!scr) { 1446 printf("wsdisplay_switch3: screen %d disappeared\n", no); 1447 error = ENXIO; 1448 } 1449 1450 if (error) { 1451 /* try to recover, avoid recursion */ 1452 1453 if (sc->sc_oldscreen == WSDISPLAY_NULLSCREEN) { 1454 printf("wsdisplay_switch3: giving up\n"); 1455 sc->sc_focus = 0; 1456 #ifdef WSDISPLAY_COMPAT_RAWKBD 1457 wsdisplay_update_rawkbd(sc, 0); 1458 #endif 1459 sc->sc_flags &= ~SC_SWITCHPENDING; 1460 return (error); 1461 } 1462 1463 sc->sc_screenwanted = sc->sc_oldscreen; 1464 sc->sc_oldscreen = WSDISPLAY_NULLSCREEN; 1465 return (wsdisplay_switch1(arg, 0, waitok)); 1466 } 1467 1468 sc->sc_flags &= ~SC_SWITCHPENDING; 1469 1470 if (!error && (scr->scr_flags & SCR_WAITACTIVE)) 1471 wakeup(scr); 1472 return (error); 1473 } 1474 1475 int 1476 wsdisplay_switch2(void *arg, int error, int waitok) 1477 { 1478 struct wsdisplay_softc *sc = arg; 1479 int no; 1480 struct wsscreen *scr; 1481 1482 if (!(sc->sc_flags & SC_SWITCHPENDING)) { 1483 printf("wsdisplay_switch2: not switching\n"); 1484 return (EINVAL); 1485 } 1486 1487 no = sc->sc_screenwanted; 1488 if (no < 0 || no >= WSDISPLAY_MAXSCREEN) 1489 panic("wsdisplay_switch2: invalid screen %d", no); 1490 scr = sc->sc_scr[no]; 1491 if (!scr) { 1492 printf("wsdisplay_switch2: screen %d disappeared\n", no); 1493 error = ENXIO; 1494 } 1495 1496 if (error) { 1497 /* try to recover, avoid recursion */ 1498 1499 if (sc->sc_oldscreen == WSDISPLAY_NULLSCREEN) { 1500 printf("wsdisplay_switch2: giving up\n"); 1501 sc->sc_focus = 0; 1502 sc->sc_flags &= ~SC_SWITCHPENDING; 1503 return (error); 1504 } 1505 1506 sc->sc_screenwanted = sc->sc_oldscreen; 1507 sc->sc_oldscreen = WSDISPLAY_NULLSCREEN; 1508 return (wsdisplay_switch1(arg, 0, waitok)); 1509 } 1510 1511 sc->sc_focusidx = no; 1512 sc->sc_focus = scr; 1513 1514 #ifdef WSDISPLAY_COMPAT_RAWKBD 1515 (void) wsdisplay_update_rawkbd(sc, scr); 1516 #endif 1517 /* keyboard map??? */ 1518 1519 #define wsswitch_cb3 ((void (*)(void *, int, int))wsdisplay_switch3) 1520 if (scr->scr_syncops) { 1521 error = (*scr->scr_syncops->attach)(scr->scr_synccookie, waitok, 1522 sc->sc_isconsole && wsdisplay_cons_pollmode ? 0 : wsswitch_cb3, sc); 1523 if (error == EAGAIN) { 1524 /* switch will be done asynchronously */ 1525 return (0); 1526 } 1527 } 1528 1529 return (wsdisplay_switch3(sc, error, waitok)); 1530 } 1531 1532 int 1533 wsdisplay_switch1(void *arg, int error, int waitok) 1534 { 1535 struct wsdisplay_softc *sc = arg; 1536 int no; 1537 struct wsscreen *scr; 1538 1539 if (!(sc->sc_flags & SC_SWITCHPENDING)) { 1540 printf("wsdisplay_switch1: not switching\n"); 1541 return (EINVAL); 1542 } 1543 1544 no = sc->sc_screenwanted; 1545 if (no == WSDISPLAY_NULLSCREEN) { 1546 sc->sc_flags &= ~SC_SWITCHPENDING; 1547 if (!error) { 1548 sc->sc_focus = 0; 1549 } 1550 wakeup(sc); 1551 return (error); 1552 } 1553 if (no < 0 || no >= WSDISPLAY_MAXSCREEN) 1554 panic("wsdisplay_switch1: invalid screen %d", no); 1555 scr = sc->sc_scr[no]; 1556 if (!scr) { 1557 printf("wsdisplay_switch1: screen %d disappeared\n", no); 1558 error = ENXIO; 1559 } 1560 1561 if (error) { 1562 sc->sc_flags &= ~SC_SWITCHPENDING; 1563 return (error); 1564 } 1565 1566 #define wsswitch_cb2 ((void (*)(void *, int, int))wsdisplay_switch2) 1567 error = (*sc->sc_accessops->show_screen)(sc->sc_accesscookie, 1568 scr->scr_dconf->emulcookie, 1569 waitok, 1570 sc->sc_isconsole && wsdisplay_cons_pollmode ? 0 : wsswitch_cb2, sc); 1571 if (error == EAGAIN) { 1572 /* switch will be done asynchronously */ 1573 return (0); 1574 } 1575 1576 return (wsdisplay_switch2(sc, error, waitok)); 1577 } 1578 1579 int 1580 wsdisplay_switch(struct device *dev, int no, int waitok) 1581 { 1582 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)dev; 1583 int s, res = 0; 1584 struct wsscreen *scr; 1585 1586 if (no != WSDISPLAY_NULLSCREEN && 1587 (no < 0 || no >= WSDISPLAY_MAXSCREEN || !sc->sc_scr[no])) 1588 return (ENXIO); 1589 1590 wsdisplay_stat_inject(dev, WSCONS_EVENT_SCREEN_SWITCH, no); 1591 1592 s = spltty(); 1593 1594 if ((sc->sc_focus && no == sc->sc_focusidx) || 1595 (sc->sc_focus == NULL && no == WSDISPLAY_NULLSCREEN)) { 1596 splx(s); 1597 return (0); 1598 } 1599 1600 if (sc->sc_flags & SC_SWITCHPENDING) { 1601 splx(s); 1602 return (EBUSY); 1603 } 1604 1605 sc->sc_flags |= SC_SWITCHPENDING; 1606 sc->sc_screenwanted = no; 1607 1608 splx(s); 1609 1610 scr = sc->sc_focus; 1611 if (!scr) { 1612 sc->sc_oldscreen = WSDISPLAY_NULLSCREEN; 1613 return (wsdisplay_switch1(sc, 0, waitok)); 1614 } else 1615 sc->sc_oldscreen = sc->sc_focusidx; 1616 1617 #define wsswitch_cb1 ((void (*)(void *, int, int))wsdisplay_switch1) 1618 if (scr->scr_syncops) { 1619 res = (*scr->scr_syncops->detach)(scr->scr_synccookie, waitok, 1620 sc->sc_isconsole && wsdisplay_cons_pollmode ? 0 : wsswitch_cb1, sc); 1621 if (res == EAGAIN) { 1622 /* switch will be done asynchronously */ 1623 return (0); 1624 } 1625 } else if (scr->scr_flags & SCR_GRAPHICS) { 1626 /* no way to save state */ 1627 res = EBUSY; 1628 } 1629 1630 return (wsdisplay_switch1(sc, res, waitok)); 1631 } 1632 1633 void 1634 wsdisplay_reset(struct device *dev, enum wsdisplay_resetops op) 1635 { 1636 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)dev; 1637 struct wsscreen *scr; 1638 1639 KASSERT(sc != NULL); 1640 scr = sc->sc_focus; 1641 1642 if (!scr) 1643 return; 1644 1645 switch (op) { 1646 case WSDISPLAY_RESETEMUL: 1647 if (!WSSCREEN_HAS_EMULATOR(scr)) 1648 break; 1649 (*scr->scr_dconf->wsemul->reset)(scr->scr_dconf->wsemulcookie, 1650 WSEMUL_RESET); 1651 break; 1652 case WSDISPLAY_RESETCLOSE: 1653 wsdisplay_closescreen(sc, scr); 1654 break; 1655 } 1656 } 1657 1658 /* 1659 * Interface for (external) VT switch / process synchronization code 1660 */ 1661 int 1662 wsscreen_attach_sync(struct wsscreen *scr, const struct wscons_syncops *ops, 1663 void *cookie) 1664 { 1665 if (scr->scr_syncops) { 1666 /* 1667 * The screen is already claimed. 1668 * Check if the owner is still alive. 1669 */ 1670 if ((*scr->scr_syncops->check)(scr->scr_synccookie)) 1671 return (EBUSY); 1672 } 1673 scr->scr_syncops = ops; 1674 scr->scr_synccookie = cookie; 1675 return (0); 1676 } 1677 1678 int 1679 wsscreen_detach_sync(struct wsscreen *scr) 1680 { 1681 if (!scr->scr_syncops) 1682 return (EINVAL); 1683 scr->scr_syncops = 0; 1684 return (0); 1685 } 1686 1687 int 1688 wsscreen_lookup_sync(struct wsscreen *scr, 1689 const struct wscons_syncops *ops, /* used as ID */ 1690 void **cookiep) 1691 { 1692 if (!scr->scr_syncops || ops != scr->scr_syncops) 1693 return (EINVAL); 1694 *cookiep = scr->scr_synccookie; 1695 return (0); 1696 } 1697 1698 /* 1699 * Interface to virtual screen stuff 1700 */ 1701 int 1702 wsdisplay_maxscreenidx(struct wsdisplay_softc *sc) 1703 { 1704 return (WSDISPLAY_MAXSCREEN - 1); 1705 } 1706 1707 int 1708 wsdisplay_screenstate(struct wsdisplay_softc *sc, int idx) 1709 { 1710 if (idx < 0 || idx >= WSDISPLAY_MAXSCREEN) 1711 return (EINVAL); 1712 if (!sc->sc_scr[idx]) 1713 return (ENXIO); 1714 return ((sc->sc_scr[idx]->scr_flags & SCR_OPEN) ? EBUSY : 0); 1715 } 1716 1717 int 1718 wsdisplay_getactivescreen(struct wsdisplay_softc *sc) 1719 { 1720 return (sc->sc_focus ? sc->sc_focusidx : WSDISPLAY_NULLSCREEN); 1721 } 1722 1723 int 1724 wsscreen_switchwait(struct wsdisplay_softc *sc, int no) 1725 { 1726 struct wsscreen *scr; 1727 int s, res = 0; 1728 1729 if (no == WSDISPLAY_NULLSCREEN) { 1730 s = spltty(); 1731 while (sc->sc_focus && res == 0) { 1732 res = tsleep(sc, PCATCH, "wswait", 0); 1733 } 1734 splx(s); 1735 return (res); 1736 } 1737 1738 if (no < 0 || no >= WSDISPLAY_MAXSCREEN) 1739 return (ENXIO); 1740 scr = sc->sc_scr[no]; 1741 if (!scr) 1742 return (ENXIO); 1743 1744 s = spltty(); 1745 if (scr != sc->sc_focus) { 1746 scr->scr_flags |= SCR_WAITACTIVE; 1747 res = tsleep(scr, PCATCH, "wswait", 0); 1748 if (scr != sc->sc_scr[no]) 1749 res = ENXIO; /* disappeared in the meantime */ 1750 else 1751 scr->scr_flags &= ~SCR_WAITACTIVE; 1752 } 1753 splx(s); 1754 return (res); 1755 } 1756 1757 void 1758 wsdisplay_kbdholdscreen(struct device *dev, int hold) 1759 { 1760 struct wsdisplay_softc *sc = (struct wsdisplay_softc *)dev; 1761 struct wsscreen *scr; 1762 1763 scr = sc->sc_focus; 1764 1765 if (hold) 1766 scr->scr_hold_screen = 1; 1767 else { 1768 scr->scr_hold_screen = 0; 1769 callout_reset(&scr->scr_tty->t_rstrt_ch, 0, 1770 ttrstrt, scr->scr_tty); /* "immediate" */ 1771 } 1772 } 1773 1774 #if NWSKBD > 0 1775 void 1776 wsdisplay_set_console_kbd(struct wsevsrc *src) 1777 { 1778 if (wsdisplay_console_device == NULL) { 1779 src->me_dispdv = NULL; 1780 return; 1781 } 1782 #if NWSMUX > 0 1783 if (wsmux_attach_sc((struct wsmux_softc *) 1784 wsdisplay_console_device->sc_input, src)) { 1785 src->me_dispdv = NULL; 1786 return; 1787 } 1788 #else 1789 wsdisplay_console_device->sc_input = src; 1790 #endif 1791 src->me_dispdv = &wsdisplay_console_device->sc_dv; 1792 } 1793 #endif /* NWSKBD > 0 */ 1794 1795 /* 1796 * Console interface. 1797 */ 1798 void 1799 wsdisplay_cnputc(dev_t dev, int i) 1800 { 1801 struct wsscreen_internal *dc; 1802 char c = i; 1803 1804 if (!wsdisplay_console_initted) 1805 return; 1806 1807 if (wsdisplay_console_device != NULL && 1808 (wsdisplay_console_device->sc_scr[0]->scr_flags & SCR_GRAPHICS)) 1809 return; 1810 1811 dc = &wsdisplay_console_conf; 1812 (*dc->wsemul->output)(dc->wsemulcookie, &c, 1, 1); 1813 } 1814 1815 static int 1816 wsdisplay_getc_dummy(dev_t dev) 1817 { 1818 /* panic? */ 1819 return (0); 1820 } 1821 1822 static void 1823 wsdisplay_pollc(dev_t dev, int on) 1824 { 1825 1826 wsdisplay_cons_pollmode = on; 1827 1828 /* notify to fb drivers */ 1829 if (wsdisplay_console_device != NULL && 1830 wsdisplay_console_device->sc_accessops->pollc != NULL) 1831 (*wsdisplay_console_device->sc_accessops->pollc) 1832 (wsdisplay_console_device->sc_accesscookie, on); 1833 1834 /* notify to kbd drivers */ 1835 if (wsdisplay_cons_kbd_pollc) 1836 (*wsdisplay_cons_kbd_pollc)(NODEV, on); 1837 } 1838 1839 void 1840 wsdisplay_set_cons_kbd(int (*get)(dev_t), void (*poll)(dev_t, int), 1841 void (*bell)(dev_t, u_int, u_int, u_int)) 1842 { 1843 wsdisplay_cons.cn_getc = get; 1844 wsdisplay_cons.cn_bell = bell; 1845 wsdisplay_cons_kbd_pollc = poll; 1846 } 1847 1848 void 1849 wsdisplay_unset_cons_kbd(void) 1850 { 1851 wsdisplay_cons.cn_getc = wsdisplay_getc_dummy; 1852 wsdisplay_cons.cn_bell = NULL; 1853 wsdisplay_cons_kbd_pollc = 0; 1854 } 1855 1856 /* 1857 * Switch the console display to it's first screen. 1858 */ 1859 void 1860 wsdisplay_switchtoconsole(void) 1861 { 1862 struct wsdisplay_softc *sc; 1863 struct wsscreen *scr; 1864 1865 if (wsdisplay_console_device != NULL) { 1866 sc = wsdisplay_console_device; 1867 scr = sc->sc_scr[0]; 1868 (*sc->sc_accessops->show_screen)(sc->sc_accesscookie, 1869 scr->scr_dconf->emulcookie, 1870 0, NULL, NULL); 1871 } 1872 } 1873 1874 /* 1875 * Switch the console at shutdown. 1876 */ 1877 static void 1878 wsdisplay_shutdownhook(void *arg) 1879 { 1880 1881 wsdisplay_switchtoconsole(); 1882 } 1883
Indexes created Tue Oct 21 16:10:11 GMT 2025