wsdisplay.c revision 1.149
1 /* $NetBSD: wsdisplay.c,v 1.149 2018/11/29 23:18:40 jmcneill 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 1.149 2018/11/29 23:18:40 jmcneill Exp $"); 35 36 #ifdef _KERNEL_OPT 37 #include "opt_wsdisplay_compat.h" 38 #include "opt_wsmsgattrs.h" 39 #endif 40 41 #include "wskbd.h" 42 #include "wsmux.h" 43 #include "wsdisplay.h" 44 45 #include <sys/param.h> 46 #include <sys/conf.h> 47 #include <sys/device.h> 48 #include <sys/ioctl.h> 49 #include <sys/poll.h> 50 #include <sys/kernel.h> 51 #include <sys/proc.h> 52 #include <sys/malloc.h> 53 #include <sys/syslog.h> 54 #include <sys/systm.h> 55 #include <sys/tty.h> 56 #include <sys/signalvar.h> 57 #include <sys/errno.h> 58 #include <sys/fcntl.h> 59 #include <sys/vnode.h> 60 #include <sys/kauth.h> 61 #include <sys/sysctl.h> 62 63 #include <dev/wscons/wsconsio.h> 64 #include <dev/wscons/wseventvar.h> 65 #include <dev/wscons/wsmuxvar.h> 66 #include <dev/wscons/wsdisplayvar.h> 67 #include <dev/wscons/wsksymvar.h> 68 #include <dev/wscons/wsksymdef.h> 69 #include <dev/wscons/wsemulvar.h> 70 #include <dev/wscons/wscons_callbacks.h> 71 #include <dev/cons.h> 72 73 #include "locators.h" 74 75 #ifdef WSDISPLAY_MULTICONS 76 static bool wsdisplay_multicons_enable = true; 77 #endif 78 79 /* Console device before replaced by wsdisplay */ 80 static struct consdev *wsdisplay_ocn; 81 82 struct wsscreen_internal { 83 const struct wsdisplay_emulops *emulops; 84 void *emulcookie; 85 86 const struct wsscreen_descr *scrdata; 87 88 const struct wsemul_ops *wsemul; 89 void *wsemulcookie; 90 }; 91 92 struct wsscreen { 93 struct wsscreen_internal *scr_dconf; 94 95 struct tty *scr_tty; 96 int scr_hold_screen; /* hold tty output */ 97 98 int scr_flags; 99 #define SCR_OPEN 1 /* is it open? */ 100 #define SCR_WAITACTIVE 2 /* someone waiting on activation */ 101 #define SCR_GRAPHICS 4 /* graphics mode, no text (emulation) output */ 102 #define SCR_DUMBFB 8 /* in use as a dumb fb (iff SCR_GRAPHICS) */ 103 const struct wscons_syncops *scr_syncops; 104 void *scr_synccookie; 105 106 #ifdef WSDISPLAY_COMPAT_RAWKBD 107 int scr_rawkbd; 108 #endif 109 110 #ifdef WSDISPLAY_MULTICONS 111 callout_t scr_getc_ch; 112 #endif 113 114 struct wsdisplay_softc *sc; 115 116 #ifdef DIAGNOSTIC 117 /* XXX this is to support a hack in emulinput, see comment below */ 118 int scr_in_ttyoutput; 119 #endif 120 }; 121 122 struct wsscreen *wsscreen_attach(struct wsdisplay_softc *, int, 123 const char *, 124 const struct wsscreen_descr *, void *, 125 int, int, long); 126 void wsscreen_detach(struct wsscreen *); 127 int wsdisplay_addscreen(struct wsdisplay_softc *, int, const char *, const char *); 128 static void wsdisplay_addscreen_print(struct wsdisplay_softc *, int, int); 129 static void wsdisplay_closescreen(struct wsdisplay_softc *, struct wsscreen *); 130 int wsdisplay_delscreen(struct wsdisplay_softc *, int, int); 131 132 #define WSDISPLAY_MAXSCREEN 8 133 134 struct wsdisplay_softc { 135 device_t sc_dev; 136 137 const struct wsdisplay_accessops *sc_accessops; 138 void *sc_accesscookie; 139 140 const struct wsscreen_list *sc_scrdata; 141 #ifdef WSDISPLAY_SCROLLSUPPORT 142 struct wsdisplay_scroll_data sc_scroll_values; 143 #endif 144 145 struct wsscreen *sc_scr[WSDISPLAY_MAXSCREEN]; 146 int sc_focusidx; /* available only if sc_focus isn't null */ 147 struct wsscreen *sc_focus; 148 149 struct wseventvar evar; 150 151 int sc_isconsole; 152 153 int sc_flags; 154 #define SC_SWITCHPENDING 1 155 #define SC_SWITCHERROR 2 156 #define SC_XATTACHED 4 /* X server active */ 157 kmutex_t sc_flagsmtx; /* for flags, might also be used for focus */ 158 kcondvar_t sc_flagscv; 159 160 int sc_screenwanted, sc_oldscreen; /* valid with SC_SWITCHPENDING */ 161 162 #if NWSKBD > 0 163 struct wsevsrc *sc_input; 164 #ifdef WSDISPLAY_COMPAT_RAWKBD 165 int sc_rawkbd; 166 #endif 167 #endif /* NWSKBD > 0 */ 168 }; 169 170 #ifdef WSDISPLAY_SCROLLSUPPORT 171 172 struct wsdisplay_scroll_data wsdisplay_default_scroll_values = { 173 WSDISPLAY_SCROLL_DOALL, 174 25, 175 2, 176 }; 177 #endif 178 179 extern struct cfdriver wsdisplay_cd; 180 181 /* Autoconfiguration definitions. */ 182 static int wsdisplay_emul_match(device_t , cfdata_t, void *); 183 static void wsdisplay_emul_attach(device_t, device_t, void *); 184 static int wsdisplay_emul_detach(device_t, int); 185 static int wsdisplay_noemul_match(device_t, cfdata_t, void *); 186 static void wsdisplay_noemul_attach(device_t, device_t, void *); 187 static bool wsdisplay_suspend(device_t, const pmf_qual_t *); 188 189 CFATTACH_DECL_NEW(wsdisplay_emul, sizeof (struct wsdisplay_softc), 190 wsdisplay_emul_match, wsdisplay_emul_attach, wsdisplay_emul_detach, NULL); 191 192 CFATTACH_DECL_NEW(wsdisplay_noemul, sizeof (struct wsdisplay_softc), 193 wsdisplay_noemul_match, wsdisplay_noemul_attach, NULL, NULL); 194 195 dev_type_open(wsdisplayopen); 196 dev_type_close(wsdisplayclose); 197 dev_type_read(wsdisplayread); 198 dev_type_write(wsdisplaywrite); 199 dev_type_ioctl(wsdisplayioctl); 200 dev_type_stop(wsdisplaystop); 201 dev_type_tty(wsdisplaytty); 202 dev_type_poll(wsdisplaypoll); 203 dev_type_mmap(wsdisplaymmap); 204 dev_type_kqfilter(wsdisplaykqfilter); 205 206 const struct cdevsw wsdisplay_cdevsw = { 207 .d_open = wsdisplayopen, 208 .d_close = wsdisplayclose, 209 .d_read = wsdisplayread, 210 .d_write = wsdisplaywrite, 211 .d_ioctl = wsdisplayioctl, 212 .d_stop = wsdisplaystop, 213 .d_tty = wsdisplaytty, 214 .d_poll = wsdisplaypoll, 215 .d_mmap = wsdisplaymmap, 216 .d_kqfilter = wsdisplaykqfilter, 217 .d_discard = nodiscard, 218 .d_flag = D_TTY 219 }; 220 221 static void wsdisplaystart(struct tty *); 222 static int wsdisplayparam(struct tty *, struct termios *); 223 224 225 #define WSDISPLAYUNIT(dev) (minor(dev) >> 8) 226 #define WSDISPLAYSCREEN(dev) (minor(dev) & 0xff) 227 #define ISWSDISPLAYSTAT(dev) (WSDISPLAYSCREEN(dev) == 254) 228 #define ISWSDISPLAYCTL(dev) (WSDISPLAYSCREEN(dev) == 255) 229 #define WSDISPLAYMINOR(unit, screen) (((unit) << 8) | (screen)) 230 231 #define WSSCREEN_HAS_EMULATOR(scr) ((scr)->scr_dconf->wsemul != NULL) 232 #define WSSCREEN_HAS_TTY(scr) ((scr)->scr_tty != NULL) 233 234 static void wsdisplay_common_attach(struct wsdisplay_softc *sc, 235 int console, int kbdmux, const struct wsscreen_list *, 236 const struct wsdisplay_accessops *accessops, 237 void *accesscookie); 238 239 #ifdef WSDISPLAY_COMPAT_RAWKBD 240 int wsdisplay_update_rawkbd(struct wsdisplay_softc *, 241 struct wsscreen *); 242 #endif 243 244 static int wsdisplay_console_initted; 245 static int wsdisplay_console_attached; 246 static struct wsdisplay_softc *wsdisplay_console_device; 247 static struct wsscreen_internal wsdisplay_console_conf; 248 249 static int wsdisplay_getc(dev_t); 250 static void wsdisplay_pollc(dev_t, int); 251 252 static int wsdisplay_cons_pollmode; 253 static int (*wsdisplay_cons_kbd_getc)(dev_t); 254 static void (*wsdisplay_cons_kbd_pollc)(dev_t, int); 255 256 static struct consdev wsdisplay_cons = { 257 NULL, NULL, wsdisplay_getc, wsdisplay_cnputc, 258 wsdisplay_pollc, NULL, NULL, NULL, NODEV, CN_NORMAL 259 }; 260 261 #ifndef WSDISPLAY_DEFAULTSCREENS 262 # define WSDISPLAY_DEFAULTSCREENS 0 263 #endif 264 int wsdisplay_defaultscreens = WSDISPLAY_DEFAULTSCREENS; 265 266 static int wsdisplay_switch1(device_t, int, int); 267 static void wsdisplay_switch1_cb(void *, int, int); 268 static int wsdisplay_switch2(device_t, int, int); 269 static void wsdisplay_switch2_cb(void *, int, int); 270 static int wsdisplay_switch3(device_t, int, int); 271 static void wsdisplay_switch3_cb(void *, int, int); 272 273 static void wsdisplay_swdone_cb(void *, int, int); 274 static int wsdisplay_dosync(struct wsdisplay_softc *, int); 275 276 int wsdisplay_clearonclose; 277 278 #ifdef WSDISPLAY_MULTICONS 279 static void 280 wsscreen_getc_poll(void *priv) 281 { 282 struct wsscreen *scr = priv; 283 int c; 284 285 if (wsdisplay_multicons_enable && 286 wsdisplay_ocn && wsdisplay_ocn->cn_getc && 287 WSSCREEN_HAS_EMULATOR(scr) && WSSCREEN_HAS_TTY(scr)) { 288 struct tty *tp = scr->scr_tty; 289 do { 290 c = wsdisplay_ocn->cn_getc(wsdisplay_ocn->cn_dev); 291 if (c != -1) 292 (*tp->t_linesw->l_rint)((unsigned char)c, tp); 293 } while (c != -1); 294 } 295 296 callout_schedule(&scr->scr_getc_ch, mstohz(10)); 297 } 298 #endif 299 300 struct wsscreen * 301 wsscreen_attach(struct wsdisplay_softc *sc, int console, const char *emul, 302 const struct wsscreen_descr *type, void *cookie, int ccol, 303 int crow, long defattr) 304 { 305 struct wsscreen_internal *dconf; 306 struct wsscreen *scr; 307 308 scr = malloc(sizeof(struct wsscreen), M_DEVBUF, M_WAITOK); 309 310 if (console) { 311 dconf = &wsdisplay_console_conf; 312 /* 313 * If there's an emulation, tell it about the callback argument. 314 * The other stuff is already there. 315 */ 316 if (dconf->wsemul != NULL) 317 (*dconf->wsemul->attach)(1, 0, 0, 0, 0, scr, 0); 318 } else { /* not console */ 319 dconf = malloc(sizeof(struct wsscreen_internal), 320 M_DEVBUF, M_WAITOK); 321 dconf->emulops = type->textops; 322 dconf->emulcookie = cookie; 323 if (dconf->emulops) { 324 dconf->wsemul = wsemul_pick(emul); 325 if (dconf->wsemul == NULL) { 326 free(dconf, M_DEVBUF); 327 free(scr, M_DEVBUF); 328 return (NULL); 329 } 330 dconf->wsemulcookie = 331 (*dconf->wsemul->attach)(0, type, cookie, 332 ccol, crow, scr, defattr); 333 } else 334 dconf->wsemul = NULL; 335 dconf->scrdata = type; 336 } 337 338 scr->scr_dconf = dconf; 339 340 scr->scr_tty = tty_alloc(); 341 tty_attach(scr->scr_tty); 342 scr->scr_hold_screen = 0; 343 if (WSSCREEN_HAS_EMULATOR(scr)) 344 scr->scr_flags = 0; 345 else 346 scr->scr_flags = SCR_GRAPHICS; 347 348 scr->scr_syncops = 0; 349 scr->sc = sc; 350 #ifdef WSDISPLAY_COMPAT_RAWKBD 351 scr->scr_rawkbd = 0; 352 #endif 353 #ifdef WSDISPLAY_MULTICONS 354 callout_init(&scr->scr_getc_ch, 0); 355 callout_setfunc(&scr->scr_getc_ch, wsscreen_getc_poll, scr); 356 if (console) 357 callout_schedule(&scr->scr_getc_ch, mstohz(10)); 358 #endif 359 return (scr); 360 } 361 362 void 363 wsscreen_detach(struct wsscreen *scr) 364 { 365 u_int ccol, crow; /* XXX */ 366 367 if (WSSCREEN_HAS_TTY(scr)) { 368 tty_detach(scr->scr_tty); 369 tty_free(scr->scr_tty); 370 } 371 if (WSSCREEN_HAS_EMULATOR(scr)) { 372 (*scr->scr_dconf->wsemul->detach)(scr->scr_dconf->wsemulcookie, 373 &ccol, &crow); 374 wsemul_drop(scr->scr_dconf->wsemul); 375 } 376 if (scr->scr_dconf->scrdata->capabilities & WSSCREEN_FREE) 377 free(__UNCONST(scr->scr_dconf->scrdata), M_DEVBUF); 378 #ifdef WSDISPLAY_MULTICONS 379 callout_halt(&scr->scr_getc_ch, NULL); 380 callout_destroy(&scr->scr_getc_ch); 381 #endif 382 free(scr->scr_dconf, M_DEVBUF); 383 free(scr, M_DEVBUF); 384 } 385 386 const struct wsscreen_descr * 387 wsdisplay_screentype_pick(const struct wsscreen_list *scrdata, const char *name) 388 { 389 int i; 390 const struct wsscreen_descr *scr; 391 392 KASSERT(scrdata->nscreens > 0); 393 if (name == NULL) 394 return (scrdata->screens[0]); 395 396 for (i = 0; i < scrdata->nscreens; i++) { 397 scr = scrdata->screens[i]; 398 if (!strcmp(name, scr->name)) 399 return (scr); 400 } 401 402 return (0); 403 } 404 405 /* 406 * print info about attached screen 407 */ 408 static void 409 wsdisplay_addscreen_print(struct wsdisplay_softc *sc, int idx, int count) 410 { 411 aprint_verbose_dev(sc->sc_dev, "screen %d", idx); 412 if (count > 1) 413 aprint_verbose("-%d", idx + (count-1)); 414 aprint_verbose(" added (%s", sc->sc_scr[idx]->scr_dconf->scrdata->name); 415 if (WSSCREEN_HAS_EMULATOR(sc->sc_scr[idx])) { 416 aprint_verbose(", %s emulation", 417 sc->sc_scr[idx]->scr_dconf->wsemul->name); 418 } 419 aprint_verbose(")\n"); 420 } 421 422 int 423 wsdisplay_addscreen(struct wsdisplay_softc *sc, int idx, 424 const char *screentype, const char *emul) 425 { 426 const struct wsscreen_descr *scrdesc; 427 struct wsscreen_descr *scrdescr2; 428 int error; 429 void *cookie; 430 int ccol, crow; 431 long defattr; 432 struct wsscreen *scr; 433 int s; 434 435 if (idx < 0 || idx >= WSDISPLAY_MAXSCREEN) 436 return (EINVAL); 437 if (sc->sc_scr[idx] != NULL) 438 return (EBUSY); 439 scrdesc = wsdisplay_screentype_pick(sc->sc_scrdata, screentype); 440 if (!scrdesc) 441 return (ENXIO); 442 443 /* 444 * if this screen can resize we need to copy the descr so each screen 445 * gets its own 446 */ 447 if (scrdesc->capabilities & WSSCREEN_RESIZE) { 448 /* we want per screen wsscreen_descr */ 449 scrdescr2 = malloc(sizeof(struct wsscreen_descr), M_DEVBUF, M_NOWAIT); 450 if (scrdescr2 == NULL) 451 return ENOMEM; 452 memcpy(scrdescr2, scrdesc, sizeof(struct wsscreen_descr)); 453 scrdescr2->capabilities |= WSSCREEN_FREE; 454 scrdesc = scrdescr2; 455 } 456 457 error = (*sc->sc_accessops->alloc_screen)(sc->sc_accesscookie, 458 scrdesc, &cookie, &ccol, &crow, &defattr); 459 if (error) 460 return (error); 461 462 scr = wsscreen_attach(sc, 0, emul, scrdesc, 463 cookie, ccol, crow, defattr); 464 if (scr == NULL) { 465 (*sc->sc_accessops->free_screen)(sc->sc_accesscookie, 466 cookie); 467 return (ENXIO); 468 } 469 470 sc->sc_scr[idx] = scr; 471 472 /* if no screen has focus yet, activate the first we get */ 473 s = spltty(); 474 if (!sc->sc_focus) { 475 (*sc->sc_accessops->show_screen)(sc->sc_accesscookie, 476 scr->scr_dconf->emulcookie, 477 0, 0, 0); 478 sc->sc_focusidx = idx; 479 sc->sc_focus = scr; 480 } 481 splx(s); 482 return (0); 483 } 484 485 static void 486 wsdisplay_closescreen(struct wsdisplay_softc *sc, struct wsscreen *scr) 487 { 488 int maj, mn, idx; 489 490 /* hangup */ 491 if (WSSCREEN_HAS_TTY(scr)) { 492 struct tty *tp = scr->scr_tty; 493 (*tp->t_linesw->l_modem)(tp, 0); 494 } 495 496 /* locate the major number */ 497 maj = cdevsw_lookup_major(&wsdisplay_cdevsw); 498 /* locate the screen index */ 499 for (idx = 0; idx < WSDISPLAY_MAXSCREEN; idx++) 500 if (scr == sc->sc_scr[idx]) 501 break; 502 #ifdef DIAGNOSTIC 503 if (idx == WSDISPLAY_MAXSCREEN) 504 panic("wsdisplay_forceclose: bad screen"); 505 #endif 506 507 /* nuke the vnodes */ 508 mn = WSDISPLAYMINOR(device_unit(sc->sc_dev), idx); 509 vdevgone(maj, mn, mn, VCHR); 510 } 511 512 #ifdef WSDISPLAY_SCROLLSUPPORT 513 void 514 wsdisplay_scroll(void *arg, int op) 515 { 516 device_t dv = arg; 517 struct wsdisplay_softc *sc = device_private(dv); 518 struct wsscreen *scr; 519 int lines; 520 521 scr = sc->sc_focus; 522 523 if (!scr) 524 return; 525 526 if (op == WSDISPLAY_SCROLL_RESET) 527 lines = 0; 528 else { 529 lines = (op & WSDISPLAY_SCROLL_LOW) ? 530 sc->sc_scroll_values.slowlines : 531 sc->sc_scroll_values.fastlines; 532 if (op & WSDISPLAY_SCROLL_BACKWARD) 533 lines = -(lines); 534 } 535 536 if (sc->sc_accessops->scroll) { 537 (*sc->sc_accessops->scroll)(sc->sc_accesscookie, 538 sc->sc_focus->scr_dconf->emulcookie, lines); 539 } 540 } 541 #endif 542 543 int 544 wsdisplay_delscreen(struct wsdisplay_softc *sc, int idx, int flags) 545 { 546 struct wsscreen *scr; 547 int s; 548 void *cookie; 549 550 if (idx < 0 || idx >= WSDISPLAY_MAXSCREEN) 551 return (EINVAL); 552 if ((scr = sc->sc_scr[idx]) == NULL) 553 return (ENXIO); 554 555 if (scr->scr_dconf == &wsdisplay_console_conf || 556 scr->scr_syncops || 557 ((scr->scr_flags & SCR_OPEN) && !(flags & WSDISPLAY_DELSCR_FORCE))) 558 return(EBUSY); 559 560 wsdisplay_closescreen(sc, scr); 561 562 /* 563 * delete pointers, so neither device entries 564 * nor keyboard input can reference it anymore 565 */ 566 s = spltty(); 567 if (sc->sc_focus == scr) { 568 sc->sc_focus = 0; 569 #ifdef WSDISPLAY_COMPAT_RAWKBD 570 wsdisplay_update_rawkbd(sc, 0); 571 #endif 572 } 573 sc->sc_scr[idx] = 0; 574 splx(s); 575 576 /* 577 * Wake up processes waiting for the screen to 578 * be activated. Sleepers must check whether 579 * the screen still exists. 580 */ 581 if (scr->scr_flags & SCR_WAITACTIVE) 582 wakeup(scr); 583 584 /* save a reference to the graphics screen */ 585 cookie = scr->scr_dconf->emulcookie; 586 587 wsscreen_detach(scr); 588 589 (*sc->sc_accessops->free_screen)(sc->sc_accesscookie, 590 cookie); 591 592 aprint_verbose_dev(sc->sc_dev, "screen %d deleted\n", idx); 593 return (0); 594 } 595 596 /* 597 * Autoconfiguration functions. 598 */ 599 int 600 wsdisplay_emul_match(device_t parent, cfdata_t match, void *aux) 601 { 602 struct wsemuldisplaydev_attach_args *ap = aux; 603 604 if (match->cf_loc[WSEMULDISPLAYDEVCF_CONSOLE] != 605 WSEMULDISPLAYDEVCF_CONSOLE_DEFAULT) { 606 /* 607 * If console-ness of device specified, either match 608 * exactly (at high priority), or fail. 609 */ 610 if (match->cf_loc[WSEMULDISPLAYDEVCF_CONSOLE] != 0 && 611 ap->console != 0) 612 return (10); 613 else 614 return (0); 615 } 616 617 /* If console-ness unspecified, it wins. */ 618 return (1); 619 } 620 621 void 622 wsdisplay_emul_attach(device_t parent, device_t self, void *aux) 623 { 624 struct wsdisplay_softc *sc = device_private(self); 625 struct wsemuldisplaydev_attach_args *ap = aux; 626 627 sc->sc_dev = self; 628 629 /* Don't allow more than one console to attach */ 630 if (wsdisplay_console_attached && ap->console) 631 ap->console = 0; 632 633 wsdisplay_common_attach(sc, ap->console, 634 device_cfdata(self)->cf_loc[WSEMULDISPLAYDEVCF_KBDMUX], 635 ap->scrdata, ap->accessops, ap->accesscookie); 636 637 if (ap->console) { 638 int maj; 639 640 /* locate the major number */ 641 maj = cdevsw_lookup_major(&wsdisplay_cdevsw); 642 643 cn_tab->cn_dev = makedev(maj, WSDISPLAYMINOR(device_unit(self), 644 0)); 645 } 646 } 647 648 /* Print function (for parent devices). */ 649 int 650 wsemuldisplaydevprint(void *aux, const char *pnp) 651 { 652 #if 0 /* -Wunused */ 653 struct wsemuldisplaydev_attach_args *ap = aux; 654 #endif 655 656 if (pnp) 657 aprint_normal("wsdisplay at %s", pnp); 658 #if 0 /* don't bother; it's ugly */ 659 aprint_normal(" console %d", ap->console); 660 #endif 661 662 return (UNCONF); 663 } 664 665 int 666 wsdisplay_emul_detach(device_t dev, int how) 667 { 668 struct wsdisplay_softc *sc = device_private(dev); 669 int flag, i, res; 670 671 flag = (how & DETACH_FORCE ? WSDISPLAY_DELSCR_FORCE : 0); 672 for (i = 0; i < WSDISPLAY_MAXSCREEN; i++) 673 if (sc->sc_scr[i]) { 674 res = wsdisplay_delscreen(sc, i, flag); 675 if (res) 676 return res; 677 } 678 679 cv_destroy(&sc->sc_flagscv); 680 mutex_destroy(&sc->sc_flagsmtx); 681 return 0; 682 } 683 684 int 685 wsdisplay_noemul_match(device_t parent, cfdata_t match, void *aux) 686 { 687 #if 0 /* -Wunused */ 688 struct wsdisplaydev_attach_args *ap = aux; 689 #endif 690 691 /* Always match. */ 692 return (1); 693 } 694 695 void 696 wsdisplay_noemul_attach(device_t parent, device_t self, void *aux) 697 { 698 struct wsdisplay_softc *sc = device_private(self); 699 struct wsdisplaydev_attach_args *ap = aux; 700 701 sc->sc_dev = self; 702 703 wsdisplay_common_attach(sc, 0, 704 device_cfdata(self)->cf_loc[WSDISPLAYDEVCF_KBDMUX], NULL, 705 ap->accessops, ap->accesscookie); 706 } 707 708 static void 709 wsdisplay_swdone_cb(void *arg, int error, int waitok) 710 { 711 struct wsdisplay_softc *sc = arg; 712 713 mutex_enter(&sc->sc_flagsmtx); 714 KASSERT(sc->sc_flags & SC_SWITCHPENDING); 715 if (error) 716 sc->sc_flags |= SC_SWITCHERROR; 717 sc->sc_flags &= ~SC_SWITCHPENDING; 718 cv_signal(&sc->sc_flagscv); 719 mutex_exit(&sc->sc_flagsmtx); 720 } 721 722 static int 723 wsdisplay_dosync(struct wsdisplay_softc *sc, int attach) 724 { 725 struct wsscreen *scr; 726 int (*op)(void *, int, void (*)(void *, int, int), void *); 727 int res; 728 729 scr = sc->sc_focus; 730 if (!scr || !scr->scr_syncops) 731 return 0; /* XXX check SCR_GRAPHICS? */ 732 733 sc->sc_flags |= SC_SWITCHPENDING; 734 sc->sc_flags &= ~SC_SWITCHERROR; 735 if (attach) 736 op = scr->scr_syncops->attach; 737 else 738 op = scr->scr_syncops->detach; 739 res = (*op)(scr->scr_synccookie, 1, wsdisplay_swdone_cb, sc); 740 if (res == EAGAIN) { 741 /* wait for callback */ 742 mutex_enter(&sc->sc_flagsmtx); 743 while (sc->sc_flags & SC_SWITCHPENDING) 744 cv_wait_sig(&sc->sc_flagscv, &sc->sc_flagsmtx); 745 mutex_exit(&sc->sc_flagsmtx); 746 if (sc->sc_flags & SC_SWITCHERROR) 747 return (EIO); /* XXX pass real error */ 748 } else { 749 sc->sc_flags &= ~SC_SWITCHPENDING; 750 if (res) 751 return (res); 752 } 753 if (attach) 754 sc->sc_flags |= SC_XATTACHED; 755 else 756 sc->sc_flags &= ~SC_XATTACHED; 757 return 0; 758 } 759 760 int 761 wsdisplay_handlex(int resume) 762 { 763 int i, res; 764 device_t dv; 765 766 for (i = 0; i < wsdisplay_cd.cd_ndevs; i++) { 767 dv = device_lookup(&wsdisplay_cd, i); 768 if (!dv) 769 continue; 770 res = wsdisplay_dosync(device_private(dv), resume); 771 if (res) 772 return (res); 773 } 774 return (0); 775 } 776 777 static bool 778 wsdisplay_suspend(device_t dv, const pmf_qual_t *qual) 779 { 780 struct wsdisplay_softc *sc = device_private(dv); 781 #ifdef DIAGNOSTIC 782 struct wsscreen *scr = sc->sc_focus; 783 if (sc->sc_flags & SC_XATTACHED) { 784 KASSERT(scr && scr->scr_syncops); 785 } 786 #endif 787 #if 1 788 /* 789 * XXX X servers should have been detached earlier. 790 * pmf currently ignores our return value and suspends the system 791 * after device suspend failures. We try to avoid bigger damage 792 * and try to detach the X server here. This is not safe because 793 * other parts of the system which the X server deals with 794 * might already be suspended. 795 */ 796 if (sc->sc_flags & SC_XATTACHED) { 797 printf("%s: emergency X server detach\n", device_xname(dv)); 798 wsdisplay_dosync(sc, 0); 799 } 800 #endif 801 return (!(sc->sc_flags & SC_XATTACHED)); 802 } 803 804 /* Print function (for parent devices). */ 805 int 806 wsdisplaydevprint(void *aux, const char *pnp) 807 { 808 #if 0 /* -Wunused */ 809 struct wsdisplaydev_attach_args *ap = aux; 810 #endif 811 812 if (pnp) 813 aprint_normal("wsdisplay at %s", pnp); 814 815 return (UNCONF); 816 } 817 818 static void 819 wsdisplay_common_attach(struct wsdisplay_softc *sc, int console, int kbdmux, 820 const struct wsscreen_list *scrdata, 821 const struct wsdisplay_accessops *accessops, 822 void *accesscookie) 823 { 824 int i, start=0; 825 #if NWSKBD > 0 826 struct wsevsrc *kme; 827 #if NWSMUX > 0 828 struct wsmux_softc *mux; 829 830 if (kbdmux >= 0) 831 mux = wsmux_getmux(kbdmux); 832 else 833 mux = wsmux_create("dmux", device_unit(sc->sc_dev)); 834 /* XXX panic()ing isn't nice, but attach cannot fail */ 835 if (mux == NULL) 836 panic("wsdisplay_common_attach: no memory"); 837 sc->sc_input = &mux->sc_base; 838 mux->sc_base.me_dispdv = sc->sc_dev; 839 aprint_normal(" kbdmux %d", kbdmux); 840 #else 841 if (kbdmux >= 0) 842 aprint_normal(" (kbdmux ignored)"); 843 #endif 844 #endif 845 846 sc->sc_isconsole = console; 847 848 if (console) { 849 KASSERT(wsdisplay_console_initted); 850 KASSERT(wsdisplay_console_device == NULL); 851 852 sc->sc_scr[0] = wsscreen_attach(sc, 1, 0, 0, 0, 0, 0, 0); 853 wsdisplay_console_device = sc; 854 855 aprint_normal(": console (%s, %s emulation)", 856 wsdisplay_console_conf.scrdata->name, 857 wsdisplay_console_conf.wsemul->name); 858 859 #if NWSKBD > 0 860 kme = wskbd_set_console_display(sc->sc_dev, sc->sc_input); 861 if (kme != NULL) 862 aprint_normal(", using %s", device_xname(kme->me_dv)); 863 #if NWSMUX == 0 864 sc->sc_input = kme; 865 #endif 866 #endif 867 868 sc->sc_focusidx = 0; 869 sc->sc_focus = sc->sc_scr[0]; 870 start = 1; 871 872 wsdisplay_console_attached = 1; 873 } 874 aprint_normal("\n"); 875 aprint_naive("\n"); 876 877 #if NWSKBD > 0 && NWSMUX > 0 878 wsmux_set_display(mux, sc->sc_dev); 879 #endif 880 881 mutex_init(&sc->sc_flagsmtx, MUTEX_DEFAULT, IPL_NONE); 882 cv_init(&sc->sc_flagscv, "wssw"); 883 884 sc->sc_accessops = accessops; 885 sc->sc_accesscookie = accesscookie; 886 sc->sc_scrdata = scrdata; 887 888 #ifdef WSDISPLAY_SCROLLSUPPORT 889 sc->sc_scroll_values = wsdisplay_default_scroll_values; 890 #endif 891 892 /* 893 * Set up a number of virtual screens if wanted. The 894 * WSDISPLAYIO_ADDSCREEN ioctl is more flexible, so this code 895 * is for special cases like installation kernels. 896 */ 897 for (i = start; i < wsdisplay_defaultscreens; i++) { 898 if (wsdisplay_addscreen(sc, i, 0, 0)) 899 break; 900 } 901 902 if (i > start) 903 wsdisplay_addscreen_print(sc, start, i-start); 904 905 if (!pmf_device_register(sc->sc_dev, wsdisplay_suspend, NULL)) 906 aprint_error_dev(sc->sc_dev, 907 "couldn't establish power handler\n"); 908 } 909 910 void 911 wsdisplay_cnattach(const struct wsscreen_descr *type, void *cookie, 912 int ccol, int crow, long defattr) 913 { 914 const struct wsemul_ops *wsemul; 915 916 KASSERT(wsdisplay_console_initted < 2); 917 KASSERT(type->nrows > 0); 918 KASSERT(type->ncols > 0); 919 KASSERT(crow < type->nrows); 920 KASSERT(ccol < type->ncols); 921 922 wsdisplay_console_conf.emulops = type->textops; 923 wsdisplay_console_conf.emulcookie = cookie; 924 wsdisplay_console_conf.scrdata = type; 925 926 wsemul = wsemul_pick(0); /* default */ 927 wsdisplay_console_conf.wsemul = wsemul; 928 wsdisplay_console_conf.wsemulcookie = (*wsemul->cnattach)(type, cookie, 929 ccol, crow, 930 defattr); 931 932 if (cn_tab != &wsdisplay_cons) 933 wsdisplay_ocn = cn_tab; 934 cn_tab = &wsdisplay_cons; 935 wsdisplay_console_initted = 2; 936 } 937 938 void 939 wsdisplay_preattach(const struct wsscreen_descr *type, void *cookie, 940 int ccol, int crow, long defattr) 941 { 942 const struct wsemul_ops *wsemul; 943 944 KASSERT(!wsdisplay_console_initted); 945 KASSERT(type->nrows > 0); 946 KASSERT(type->ncols > 0); 947 KASSERT(crow < type->nrows); 948 KASSERT(ccol < type->ncols); 949 950 wsdisplay_console_conf.emulops = type->textops; 951 wsdisplay_console_conf.emulcookie = cookie; 952 wsdisplay_console_conf.scrdata = type; 953 954 wsemul = wsemul_pick(0); /* default */ 955 wsdisplay_console_conf.wsemul = wsemul; 956 wsdisplay_console_conf.wsemulcookie = (*wsemul->cnattach)(type, cookie, 957 ccol, crow, 958 defattr); 959 960 if (cn_tab != &wsdisplay_cons) 961 wsdisplay_ocn = cn_tab; 962 cn_tab = &wsdisplay_cons; 963 wsdisplay_console_initted = 1; 964 } 965 966 void 967 wsdisplay_cndetach(void) 968 { 969 KASSERT(wsdisplay_console_initted == 2); 970 971 cn_tab = wsdisplay_ocn; 972 wsdisplay_console_initted = 0; 973 } 974 975 /* 976 * Tty and cdevsw functions. 977 */ 978 int 979 wsdisplayopen(dev_t dev, int flag, int mode, struct lwp *l) 980 { 981 struct wsdisplay_softc *sc; 982 struct tty *tp; 983 int newopen, error; 984 struct wsscreen *scr; 985 986 sc = device_lookup_private(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 987 if (sc == NULL) /* make sure it was attached */ 988 return (ENXIO); 989 990 if (ISWSDISPLAYSTAT(dev)) { 991 wsevent_init(&sc->evar, l->l_proc); 992 return (0); 993 } 994 995 if (ISWSDISPLAYCTL(dev)) 996 return (0); 997 998 if (WSDISPLAYSCREEN(dev) >= WSDISPLAY_MAXSCREEN) 999 return (ENXIO); 1000 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 1001 return (ENXIO); 1002 1003 if (WSSCREEN_HAS_TTY(scr)) { 1004 tp = scr->scr_tty; 1005 tp->t_oproc = wsdisplaystart; 1006 tp->t_param = wsdisplayparam; 1007 tp->t_dev = dev; 1008 newopen = (tp->t_state & TS_ISOPEN) == 0; 1009 1010 if (kauth_authorize_device_tty(l->l_cred, 1011 KAUTH_DEVICE_TTY_OPEN, tp)) 1012 return (EBUSY); 1013 1014 if (newopen) { 1015 ttychars(tp); 1016 tp->t_iflag = TTYDEF_IFLAG; 1017 tp->t_oflag = TTYDEF_OFLAG; 1018 tp->t_cflag = TTYDEF_CFLAG; 1019 tp->t_lflag = TTYDEF_LFLAG; 1020 tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED; 1021 wsdisplayparam(tp, &tp->t_termios); 1022 ttsetwater(tp); 1023 } 1024 tp->t_state |= TS_CARR_ON; 1025 1026 error = ((*tp->t_linesw->l_open)(dev, tp)); 1027 if (error) 1028 return (error); 1029 1030 if (newopen && WSSCREEN_HAS_EMULATOR(scr)) { 1031 /* set window sizes as appropriate, and reset 1032 the emulation */ 1033 tp->t_winsize.ws_row = scr->scr_dconf->scrdata->nrows; 1034 tp->t_winsize.ws_col = scr->scr_dconf->scrdata->ncols; 1035 1036 /* wsdisplay_set_emulation() */ 1037 } 1038 } 1039 1040 scr->scr_flags |= SCR_OPEN; 1041 return (0); 1042 } 1043 1044 int 1045 wsdisplayclose(dev_t dev, int flag, int mode, struct lwp *l) 1046 { 1047 device_t dv; 1048 struct wsdisplay_softc *sc; 1049 struct tty *tp; 1050 struct wsscreen *scr; 1051 1052 dv = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 1053 sc = device_private(dv); 1054 1055 if (ISWSDISPLAYSTAT(dev)) { 1056 wsevent_fini(&sc->evar); 1057 return (0); 1058 } 1059 1060 if (ISWSDISPLAYCTL(dev)) 1061 return (0); 1062 1063 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 1064 return (0); 1065 1066 if (WSSCREEN_HAS_TTY(scr)) { 1067 if (scr->scr_hold_screen) { 1068 int s; 1069 1070 /* XXX RESET KEYBOARD LEDS, etc. */ 1071 s = spltty(); /* avoid conflict with keyboard */ 1072 wsdisplay_kbdholdscreen(dv, 0); 1073 splx(s); 1074 } 1075 tp = scr->scr_tty; 1076 (*tp->t_linesw->l_close)(tp, flag); 1077 ttyclose(tp); 1078 } 1079 1080 if (scr->scr_syncops) 1081 (*scr->scr_syncops->destroy)(scr->scr_synccookie); 1082 1083 if (WSSCREEN_HAS_EMULATOR(scr)) { 1084 scr->scr_flags &= ~SCR_GRAPHICS; 1085 (*scr->scr_dconf->wsemul->reset)(scr->scr_dconf->wsemulcookie, 1086 WSEMUL_RESET); 1087 if (wsdisplay_clearonclose) 1088 (*scr->scr_dconf->wsemul->reset) 1089 (scr->scr_dconf->wsemulcookie, 1090 WSEMUL_CLEARSCREEN); 1091 } 1092 1093 #ifdef WSDISPLAY_COMPAT_RAWKBD 1094 if (scr->scr_rawkbd) { 1095 int kbmode = WSKBD_TRANSLATED; 1096 (void)wsdisplay_internal_ioctl(sc, scr, WSKBDIO_SETMODE, 1097 (void *)&kbmode, 0, l); 1098 } 1099 #endif 1100 1101 scr->scr_flags &= ~SCR_OPEN; 1102 1103 return (0); 1104 } 1105 1106 int 1107 wsdisplayread(dev_t dev, struct uio *uio, int flag) 1108 { 1109 struct wsdisplay_softc *sc; 1110 struct tty *tp; 1111 struct wsscreen *scr; 1112 int error; 1113 1114 sc = device_lookup_private(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 1115 1116 if (ISWSDISPLAYSTAT(dev)) { 1117 error = wsevent_read(&sc->evar, uio, flag); 1118 return (error); 1119 } 1120 1121 if (ISWSDISPLAYCTL(dev)) 1122 return (0); 1123 1124 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 1125 return (ENXIO); 1126 1127 if (!WSSCREEN_HAS_TTY(scr)) 1128 return (ENODEV); 1129 1130 tp = scr->scr_tty; 1131 return ((*tp->t_linesw->l_read)(tp, uio, flag)); 1132 } 1133 1134 int 1135 wsdisplaywrite(dev_t dev, struct uio *uio, int flag) 1136 { 1137 struct wsdisplay_softc *sc; 1138 struct tty *tp; 1139 struct wsscreen *scr; 1140 1141 sc = device_lookup_private(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 1142 1143 if (ISWSDISPLAYSTAT(dev)) { 1144 return (0); 1145 } 1146 1147 if (ISWSDISPLAYCTL(dev)) 1148 return (0); 1149 1150 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 1151 return (ENXIO); 1152 1153 if (!WSSCREEN_HAS_TTY(scr)) 1154 return (ENODEV); 1155 1156 tp = scr->scr_tty; 1157 return ((*tp->t_linesw->l_write)(tp, uio, flag)); 1158 } 1159 1160 int 1161 wsdisplaypoll(dev_t dev, int events, struct lwp *l) 1162 { 1163 struct wsdisplay_softc *sc; 1164 struct tty *tp; 1165 struct wsscreen *scr; 1166 1167 sc = device_lookup_private(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 1168 1169 if (ISWSDISPLAYSTAT(dev)) 1170 return (wsevent_poll(&sc->evar, events, l)); 1171 1172 if (ISWSDISPLAYCTL(dev)) 1173 return (0); 1174 1175 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 1176 return (POLLHUP); 1177 1178 if (!WSSCREEN_HAS_TTY(scr)) 1179 return (POLLERR); 1180 1181 tp = scr->scr_tty; 1182 return ((*tp->t_linesw->l_poll)(tp, events, l)); 1183 } 1184 1185 int 1186 wsdisplaykqfilter(dev_t dev, struct knote *kn) 1187 { 1188 struct wsdisplay_softc *sc; 1189 struct wsscreen *scr; 1190 1191 sc = device_lookup_private(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 1192 1193 if (ISWSDISPLAYCTL(dev)) 1194 return (1); 1195 1196 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 1197 return (1); 1198 1199 1200 if (WSSCREEN_HAS_TTY(scr)) 1201 return (ttykqfilter(dev, kn)); 1202 else 1203 return (1); 1204 } 1205 1206 struct tty * 1207 wsdisplaytty(dev_t dev) 1208 { 1209 struct wsdisplay_softc *sc; 1210 struct wsscreen *scr; 1211 1212 sc = device_lookup_private(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 1213 1214 if (ISWSDISPLAYSTAT(dev)) 1215 panic("wsdisplaytty() on status device"); 1216 1217 if (ISWSDISPLAYCTL(dev)) 1218 panic("wsdisplaytty() on ctl device"); 1219 1220 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 1221 return NULL; 1222 1223 return (scr->scr_tty); 1224 } 1225 1226 int 1227 wsdisplayioctl(dev_t dev, u_long cmd, void *data, int flag, struct lwp *l) 1228 { 1229 device_t dv; 1230 struct wsdisplay_softc *sc; 1231 struct tty *tp; 1232 int error; 1233 struct wsscreen *scr; 1234 1235 dv = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 1236 sc = device_private(dv); 1237 1238 #ifdef WSDISPLAY_COMPAT_USL 1239 error = wsdisplay_usl_ioctl1(dv, cmd, data, flag, l); 1240 if (error != EPASSTHROUGH) 1241 return (error); 1242 #endif 1243 1244 if (ISWSDISPLAYSTAT(dev)) 1245 return (wsdisplay_stat_ioctl(sc, cmd, data, flag, l)); 1246 1247 if (ISWSDISPLAYCTL(dev)) 1248 return (wsdisplay_cfg_ioctl(sc, cmd, data, flag, l)); 1249 1250 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 1251 return (ENXIO); 1252 1253 if (WSSCREEN_HAS_TTY(scr)) { 1254 tp = scr->scr_tty; 1255 1256 /* do the line discipline ioctls first */ 1257 error = (*tp->t_linesw->l_ioctl)(tp, cmd, data, flag, l); 1258 if (error != EPASSTHROUGH) 1259 return (error); 1260 1261 /* then the tty ioctls */ 1262 error = ttioctl(tp, cmd, data, flag, l); 1263 if (error != EPASSTHROUGH) 1264 return (error); 1265 } 1266 1267 #ifdef WSDISPLAY_COMPAT_USL 1268 error = wsdisplay_usl_ioctl2(sc, scr, cmd, data, flag, l); 1269 if (error != EPASSTHROUGH) 1270 return (error); 1271 #endif 1272 1273 return (wsdisplay_internal_ioctl(sc, scr, cmd, data, flag, l)); 1274 } 1275 1276 int 1277 wsdisplay_param(device_t dv, u_long cmd, struct wsdisplay_param *dp) 1278 { 1279 struct wsdisplay_softc *sc = device_private(dv); 1280 return ((*sc->sc_accessops->ioctl)(sc->sc_accesscookie, 1281 sc->sc_focus->scr_dconf->emulcookie, 1282 cmd, (void *)dp, 0, NULL)); 1283 } 1284 1285 int 1286 wsdisplay_internal_ioctl(struct wsdisplay_softc *sc, struct wsscreen *scr, 1287 u_long cmd, void *data, int flag, struct lwp *l) 1288 { 1289 int error; 1290 char namebuf[32]; 1291 struct wsdisplay_font fd; 1292 #ifdef WSDISPLAY_SCROLLSUPPORT 1293 struct wsdisplay_scroll_data *ksdp, *usdp; 1294 #endif 1295 1296 #if NWSKBD > 0 1297 struct wsevsrc *inp; 1298 1299 #ifdef WSDISPLAY_COMPAT_RAWKBD 1300 switch (cmd) { 1301 case WSKBDIO_SETMODE: 1302 scr->scr_rawkbd = (*(int *)data == WSKBD_RAW); 1303 return (wsdisplay_update_rawkbd(sc, scr)); 1304 case WSKBDIO_GETMODE: 1305 *(int *)data = (scr->scr_rawkbd ? 1306 WSKBD_RAW : WSKBD_TRANSLATED); 1307 return (0); 1308 } 1309 #endif 1310 inp = sc->sc_input; 1311 if (inp == NULL) 1312 return (ENXIO); 1313 error = wsevsrc_display_ioctl(inp, cmd, data, flag, l); 1314 if (error != EPASSTHROUGH) 1315 return (error); 1316 #endif /* NWSKBD > 0 */ 1317 1318 switch (cmd) { 1319 case WSDISPLAYIO_GMODE: 1320 if (scr->scr_flags & SCR_GRAPHICS) { 1321 if (scr->scr_flags & SCR_DUMBFB) 1322 *(u_int *)data = WSDISPLAYIO_MODE_DUMBFB; 1323 else 1324 *(u_int *)data = WSDISPLAYIO_MODE_MAPPED; 1325 } else 1326 *(u_int *)data = WSDISPLAYIO_MODE_EMUL; 1327 return (0); 1328 1329 case WSDISPLAYIO_SMODE: 1330 #define d (*(int *)data) 1331 if (d != WSDISPLAYIO_MODE_EMUL && 1332 d != WSDISPLAYIO_MODE_MAPPED && 1333 d != WSDISPLAYIO_MODE_DUMBFB) 1334 return (EINVAL); 1335 1336 if (WSSCREEN_HAS_EMULATOR(scr)) { 1337 scr->scr_flags &= ~SCR_GRAPHICS; 1338 if (d == WSDISPLAYIO_MODE_MAPPED || 1339 d == WSDISPLAYIO_MODE_DUMBFB) 1340 scr->scr_flags |= SCR_GRAPHICS | 1341 ((d == WSDISPLAYIO_MODE_DUMBFB) ? SCR_DUMBFB : 0); 1342 } else if (d == WSDISPLAYIO_MODE_EMUL) 1343 return (EINVAL); 1344 1345 (void)(*sc->sc_accessops->ioctl)(sc->sc_accesscookie, 1346 scr->scr_dconf->emulcookie, cmd, data, flag, l); 1347 1348 return (0); 1349 #undef d 1350 1351 #ifdef WSDISPLAY_SCROLLSUPPORT 1352 #define SETSCROLLLINES(dstp, srcp, dfltp) \ 1353 do { \ 1354 (dstp)->fastlines = ((srcp)->which & \ 1355 WSDISPLAY_SCROLL_DOFASTLINES) ? \ 1356 (srcp)->fastlines : (dfltp)->fastlines; \ 1357 (dstp)->slowlines = ((srcp)->which & \ 1358 WSDISPLAY_SCROLL_DOSLOWLINES) ? \ 1359 (srcp)->slowlines : (dfltp)->slowlines; \ 1360 (dstp)->which = WSDISPLAY_SCROLL_DOALL; \ 1361 } while (0) 1362 1363 1364 case WSDISPLAYIO_DSSCROLL: 1365 usdp = (struct wsdisplay_scroll_data *)data; 1366 ksdp = &sc->sc_scroll_values; 1367 SETSCROLLLINES(ksdp, usdp, ksdp); 1368 return (0); 1369 1370 case WSDISPLAYIO_DGSCROLL: 1371 usdp = (struct wsdisplay_scroll_data *)data; 1372 ksdp = &sc->sc_scroll_values; 1373 SETSCROLLLINES(usdp, ksdp, ksdp); 1374 return (0); 1375 #else 1376 case WSDISPLAYIO_DSSCROLL: 1377 case WSDISPLAYIO_DGSCROLL: 1378 return ENODEV; 1379 #endif 1380 1381 case WSDISPLAYIO_SFONT: 1382 #define d ((struct wsdisplay_usefontdata *)data) 1383 if (!sc->sc_accessops->load_font) 1384 return (EINVAL); 1385 if (d->name) { 1386 error = copyinstr(d->name, namebuf, sizeof(namebuf), 0); 1387 if (error) 1388 return (error); 1389 fd.name = namebuf; 1390 } else 1391 fd.name = 0; 1392 fd.data = 0; 1393 error = (*sc->sc_accessops->load_font)(sc->sc_accesscookie, 1394 scr->scr_dconf->emulcookie, &fd); 1395 if (!error && WSSCREEN_HAS_EMULATOR(scr)) { 1396 (*scr->scr_dconf->wsemul->reset) 1397 (scr->scr_dconf->wsemulcookie, WSEMUL_SYNCFONT); 1398 if (scr->scr_dconf->wsemul->resize) { 1399 (*scr->scr_dconf->wsemul->resize) 1400 (scr->scr_dconf->wsemulcookie, 1401 scr->scr_dconf->scrdata); 1402 /* update the tty's size */ 1403 scr->scr_tty->t_winsize.ws_row = 1404 scr->scr_dconf->scrdata->nrows; 1405 scr->scr_tty->t_winsize.ws_col = 1406 scr->scr_dconf->scrdata->ncols; 1407 /* send SIGWINCH to the process group on our tty */ 1408 kpreempt_disable(); 1409 ttysig(scr->scr_tty, TTYSIG_PG1, SIGWINCH); 1410 kpreempt_enable(); 1411 } 1412 } 1413 return (error); 1414 #undef d 1415 1416 #ifdef WSDISPLAY_CUSTOM_OUTPUT 1417 case WSDISPLAYIO_GMSGATTRS: 1418 #define d ((struct wsdisplay_msgattrs *)data) 1419 (*scr->scr_dconf->wsemul->getmsgattrs) 1420 (scr->scr_dconf->wsemulcookie, d); 1421 return (0); 1422 #undef d 1423 1424 case WSDISPLAYIO_SMSGATTRS: { 1425 #define d ((struct wsdisplay_msgattrs *)data) 1426 int i; 1427 for (i = 0; i < WSDISPLAY_MAXSCREEN; i++) 1428 if (sc->sc_scr[i] != NULL) 1429 (*sc->sc_scr[i]->scr_dconf->wsemul->setmsgattrs) 1430 (sc->sc_scr[i]->scr_dconf->wsemulcookie, 1431 sc->sc_scr[i]->scr_dconf->scrdata, 1432 d); 1433 } 1434 return (0); 1435 #undef d 1436 #else 1437 case WSDISPLAYIO_GMSGATTRS: 1438 case WSDISPLAYIO_SMSGATTRS: 1439 return (ENODEV); 1440 #endif 1441 case WSDISPLAYIO_SETVERSION: 1442 return wsevent_setversion(&sc->evar, *(int *)data); 1443 } 1444 1445 /* check ioctls for display */ 1446 return ((*sc->sc_accessops->ioctl)(sc->sc_accesscookie, 1447 scr->scr_dconf->emulcookie, cmd, data, flag, l)); 1448 } 1449 1450 int 1451 wsdisplay_stat_ioctl(struct wsdisplay_softc *sc, u_long cmd, void *data, 1452 int flag, struct lwp *l) 1453 { 1454 switch (cmd) { 1455 case WSDISPLAYIO_GETACTIVESCREEN: 1456 *(int*)data = wsdisplay_getactivescreen(sc); 1457 return (0); 1458 } 1459 1460 return (EPASSTHROUGH); 1461 } 1462 1463 int 1464 wsdisplay_cfg_ioctl(struct wsdisplay_softc *sc, u_long cmd, void *data, 1465 int flag, struct lwp *l) 1466 { 1467 int error; 1468 char *type, typebuf[16], *emul, emulbuf[16]; 1469 void *tbuf; 1470 u_int fontsz; 1471 #if defined(COMPAT_14) && NWSKBD > 0 1472 struct wsmux_device wsmuxdata; 1473 #endif 1474 #if NWSKBD > 0 1475 struct wsevsrc *inp; 1476 #endif 1477 1478 switch (cmd) { 1479 case WSDISPLAYIO_ADDSCREEN: 1480 #define d ((struct wsdisplay_addscreendata *)data) 1481 if (d->screentype) { 1482 error = copyinstr(d->screentype, typebuf, 1483 sizeof(typebuf), 0); 1484 if (error) 1485 return (error); 1486 type = typebuf; 1487 } else 1488 type = 0; 1489 if (d->emul) { 1490 error = copyinstr(d->emul, emulbuf, sizeof(emulbuf),0); 1491 if (error) 1492 return (error); 1493 emul = emulbuf; 1494 } else 1495 emul = 0; 1496 1497 if ((error = wsdisplay_addscreen(sc, d->idx, type, emul)) == 0) 1498 wsdisplay_addscreen_print(sc, d->idx, 0); 1499 return (error); 1500 #undef d 1501 case WSDISPLAYIO_DELSCREEN: 1502 #define d ((struct wsdisplay_delscreendata *)data) 1503 return (wsdisplay_delscreen(sc, d->idx, d->flags)); 1504 #undef d 1505 case WSDISPLAYIO_LDFONT: 1506 #define d ((struct wsdisplay_font *)data) 1507 if (!sc->sc_accessops->load_font) 1508 return (EINVAL); 1509 if (d->name) { 1510 error = copyinstr(d->name, typebuf, sizeof(typebuf), 0); 1511 if (error) 1512 return (error); 1513 d->name = typebuf; 1514 } else 1515 d->name = "loaded"; /* ??? */ 1516 fontsz = d->fontheight * d->stride * d->numchars; 1517 if (fontsz > WSDISPLAY_MAXFONTSZ) 1518 return (EINVAL); 1519 1520 tbuf = malloc(fontsz, M_DEVBUF, M_WAITOK); 1521 error = copyin(d->data, tbuf, fontsz); 1522 if (error) { 1523 free(tbuf, M_DEVBUF); 1524 return (error); 1525 } 1526 d->data = tbuf; 1527 error = 1528 (*sc->sc_accessops->load_font)(sc->sc_accesscookie, 0, d); 1529 free(tbuf, M_DEVBUF); 1530 #undef d 1531 return (error); 1532 1533 #if NWSKBD > 0 1534 #ifdef COMPAT_14 1535 case _O_WSDISPLAYIO_SETKEYBOARD: 1536 #define d ((struct wsdisplay_kbddata *)data) 1537 inp = sc->sc_input; 1538 if (inp == NULL) 1539 return (ENXIO); 1540 switch (d->op) { 1541 case _O_WSDISPLAY_KBD_ADD: 1542 if (d->idx == -1) { 1543 d->idx = wskbd_pickfree(); 1544 if (d->idx == -1) 1545 return (ENXIO); 1546 } 1547 wsmuxdata.type = WSMUX_KBD; 1548 wsmuxdata.idx = d->idx; 1549 return (wsevsrc_ioctl(inp, WSMUX_ADD_DEVICE, 1550 &wsmuxdata, flag, l)); 1551 case _O_WSDISPLAY_KBD_DEL: 1552 wsmuxdata.type = WSMUX_KBD; 1553 wsmuxdata.idx = d->idx; 1554 return (wsevsrc_ioctl(inp, WSMUX_REMOVE_DEVICE, 1555 &wsmuxdata, flag, l)); 1556 default: 1557 return (EINVAL); 1558 } 1559 #undef d 1560 #endif 1561 1562 case WSMUXIO_ADD_DEVICE: 1563 #define d ((struct wsmux_device *)data) 1564 if (d->idx == -1 && d->type == WSMUX_KBD) 1565 d->idx = wskbd_pickfree(); 1566 #undef d 1567 /* fall into */ 1568 case WSMUXIO_INJECTEVENT: 1569 case WSMUXIO_REMOVE_DEVICE: 1570 case WSMUXIO_LIST_DEVICES: 1571 inp = sc->sc_input; 1572 if (inp == NULL) 1573 return (ENXIO); 1574 return (wsevsrc_ioctl(inp, cmd, data, flag, l)); 1575 #endif /* NWSKBD > 0 */ 1576 1577 } 1578 return (EPASSTHROUGH); 1579 } 1580 1581 int 1582 wsdisplay_stat_inject(device_t dv, u_int type, int value) 1583 { 1584 struct wsdisplay_softc *sc = device_private(dv); 1585 struct wseventvar *evar; 1586 struct wscons_event event; 1587 1588 evar = &sc->evar; 1589 1590 if (evar == NULL) 1591 return (0); 1592 1593 if (evar->q == NULL) 1594 return (1); 1595 1596 event.type = type; 1597 event.value = value; 1598 if (wsevent_inject(evar, &event, 1) != 0) { 1599 log(LOG_WARNING, "wsdisplay: event queue overflow\n"); 1600 return (1); 1601 } 1602 1603 return (0); 1604 } 1605 1606 paddr_t 1607 wsdisplaymmap(dev_t dev, off_t offset, int prot) 1608 { 1609 struct wsdisplay_softc *sc; 1610 struct wsscreen *scr; 1611 1612 sc = device_lookup_private(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 1613 1614 if (ISWSDISPLAYSTAT(dev)) 1615 return (-1); 1616 1617 if (ISWSDISPLAYCTL(dev)) 1618 return (-1); 1619 1620 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 1621 return (-1); 1622 1623 if (!(scr->scr_flags & SCR_GRAPHICS)) 1624 return (-1); 1625 1626 /* pass mmap to display */ 1627 return ((*sc->sc_accessops->mmap)(sc->sc_accesscookie, 1628 scr->scr_dconf->emulcookie, offset, prot)); 1629 } 1630 1631 void 1632 wsdisplaystart(struct tty *tp) 1633 { 1634 struct wsdisplay_softc *sc; 1635 struct wsscreen *scr; 1636 int s, n; 1637 u_char *tbuf; 1638 1639 s = spltty(); 1640 if (tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP)) { 1641 splx(s); 1642 return; 1643 } 1644 sc = device_lookup_private(&wsdisplay_cd, WSDISPLAYUNIT(tp->t_dev)); 1645 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(tp->t_dev)]) == NULL) { 1646 splx(s); 1647 return; 1648 } 1649 1650 if (scr->scr_hold_screen) { 1651 tp->t_state |= TS_TIMEOUT; 1652 splx(s); 1653 return; 1654 } 1655 tp->t_state |= TS_BUSY; 1656 splx(s); 1657 1658 #ifdef DIAGNOSTIC 1659 scr->scr_in_ttyoutput = 1; 1660 #endif 1661 1662 /* 1663 * Drain output from ring buffer. 1664 * The output will normally be in one contiguous chunk, but when the 1665 * ring wraps, it will be in two pieces.. one at the end of the ring, 1666 * the other at the start. For performance, rather than loop here, 1667 * we output one chunk, see if there's another one, and if so, output 1668 * it too. 1669 */ 1670 1671 n = ndqb(&tp->t_outq, 0); 1672 tbuf = tp->t_outq.c_cf; 1673 1674 if (!(scr->scr_flags & SCR_GRAPHICS)) { 1675 KASSERT(WSSCREEN_HAS_EMULATOR(scr)); 1676 (*scr->scr_dconf->wsemul->output)(scr->scr_dconf->wsemulcookie, 1677 tbuf, n, 0); 1678 #ifdef WSDISPLAY_MULTICONS 1679 if (wsdisplay_multicons_enable && 1680 scr->scr_dconf == &wsdisplay_console_conf && 1681 wsdisplay_ocn && wsdisplay_ocn->cn_putc) { 1682 for (int i = 0; i < n; i++) 1683 wsdisplay_ocn->cn_putc( 1684 wsdisplay_ocn->cn_dev, tbuf[i]); 1685 } 1686 #endif 1687 } 1688 ndflush(&tp->t_outq, n); 1689 1690 if ((n = ndqb(&tp->t_outq, 0)) > 0) { 1691 tbuf = tp->t_outq.c_cf; 1692 1693 if (!(scr->scr_flags & SCR_GRAPHICS)) { 1694 KASSERT(WSSCREEN_HAS_EMULATOR(scr)); 1695 (*scr->scr_dconf->wsemul->output) 1696 (scr->scr_dconf->wsemulcookie, tbuf, n, 0); 1697 1698 #ifdef WSDISPLAY_MULTICONS 1699 if (wsdisplay_multicons_enable && 1700 scr->scr_dconf == &wsdisplay_console_conf && 1701 wsdisplay_ocn && wsdisplay_ocn->cn_putc) { 1702 for (int i = 0; i < n; i++) 1703 wsdisplay_ocn->cn_putc( 1704 wsdisplay_ocn->cn_dev, tbuf[i]); 1705 } 1706 #endif 1707 } 1708 ndflush(&tp->t_outq, n); 1709 } 1710 1711 #ifdef DIAGNOSTIC 1712 scr->scr_in_ttyoutput = 0; 1713 #endif 1714 1715 s = spltty(); 1716 tp->t_state &= ~TS_BUSY; 1717 /* Come back if there's more to do */ 1718 if (ttypull(tp)) { 1719 tp->t_state |= TS_TIMEOUT; 1720 callout_schedule(&tp->t_rstrt_ch, (hz > 128) ? (hz / 128) : 1); 1721 } 1722 splx(s); 1723 } 1724 1725 void 1726 wsdisplaystop(struct tty *tp, int flag) 1727 { 1728 int s; 1729 1730 s = spltty(); 1731 if (ISSET(tp->t_state, TS_BUSY)) 1732 if (!ISSET(tp->t_state, TS_TTSTOP)) 1733 SET(tp->t_state, TS_FLUSH); 1734 splx(s); 1735 } 1736 1737 /* Set line parameters. */ 1738 int 1739 wsdisplayparam(struct tty *tp, struct termios *t) 1740 { 1741 1742 tp->t_ispeed = t->c_ispeed; 1743 tp->t_ospeed = t->c_ospeed; 1744 tp->t_cflag = t->c_cflag; 1745 return 0; 1746 } 1747 1748 /* 1749 * Callbacks for the emulation code. 1750 */ 1751 void 1752 wsdisplay_emulbell(void *v) 1753 { 1754 struct wsscreen *scr = v; 1755 1756 if (scr == NULL) /* console, before real attach */ 1757 return; 1758 1759 if (scr->scr_flags & SCR_GRAPHICS) /* can this happen? */ 1760 return; 1761 1762 (void) wsdisplay_internal_ioctl(scr->sc, scr, WSKBDIO_BELL, NULL, 1763 FWRITE, NULL); 1764 } 1765 1766 void 1767 wsdisplay_emulinput(void *v, const u_char *data, u_int count) 1768 { 1769 struct wsscreen *scr = v; 1770 struct tty *tp; 1771 int (*ifcn)(int, struct tty *); 1772 1773 if (v == NULL) /* console, before real attach */ 1774 return; 1775 1776 if (scr->scr_flags & SCR_GRAPHICS) /* XXX can't happen */ 1777 return; 1778 if (!WSSCREEN_HAS_TTY(scr)) 1779 return; 1780 1781 tp = scr->scr_tty; 1782 1783 /* 1784 * XXX bad hack to work around locking problems in tty.c: 1785 * ttyinput() will try to lock again, causing deadlock. 1786 * We assume that wsdisplay_emulinput() can only be called 1787 * from within wsdisplaystart(), and thus the tty lock 1788 * is already held. Use an entry point which doesn't lock. 1789 */ 1790 KASSERT(scr->scr_in_ttyoutput); 1791 ifcn = tp->t_linesw->l_rint; 1792 if (ifcn == ttyinput) 1793 ifcn = ttyinput_wlock; 1794 1795 while (count-- > 0) 1796 (*ifcn)(*data++, tp); 1797 } 1798 1799 /* 1800 * Calls from the keyboard interface. 1801 */ 1802 void 1803 wsdisplay_kbdinput(device_t dv, keysym_t ks) 1804 { 1805 struct wsdisplay_softc *sc = device_private(dv); 1806 struct wsscreen *scr; 1807 const char *dp; 1808 int count; 1809 struct tty *tp; 1810 1811 KASSERT(sc != NULL); 1812 1813 scr = sc->sc_focus; 1814 1815 if (!scr || !WSSCREEN_HAS_TTY(scr)) 1816 return; 1817 1818 tp = scr->scr_tty; 1819 1820 if (KS_GROUP(ks) == KS_GROUP_Plain && KS_VALUE(ks) <= 0x7f) 1821 (*tp->t_linesw->l_rint)(KS_VALUE(ks), tp); 1822 else if (WSSCREEN_HAS_EMULATOR(scr)) { 1823 count = (*scr->scr_dconf->wsemul->translate) 1824 (scr->scr_dconf->wsemulcookie, ks, &dp); 1825 while (count-- > 0) 1826 (*tp->t_linesw->l_rint)((unsigned char)(*dp++), tp); 1827 } 1828 } 1829 1830 #if defined(WSDISPLAY_COMPAT_RAWKBD) 1831 int 1832 wsdisplay_update_rawkbd(struct wsdisplay_softc *sc, struct wsscreen *scr) 1833 { 1834 #if NWSKBD > 0 1835 int s, raw, data, error; 1836 struct wsevsrc *inp; 1837 1838 s = spltty(); 1839 1840 raw = (scr ? scr->scr_rawkbd : 0); 1841 1842 if (scr != sc->sc_focus || 1843 sc->sc_rawkbd == raw) { 1844 splx(s); 1845 return (0); 1846 } 1847 1848 data = raw ? WSKBD_RAW : WSKBD_TRANSLATED; 1849 inp = sc->sc_input; 1850 if (inp == NULL) { 1851 splx(s); 1852 return (ENXIO); 1853 } 1854 error = wsevsrc_display_ioctl(inp, WSKBDIO_SETMODE, &data, 0, 0); 1855 if (!error) 1856 sc->sc_rawkbd = raw; 1857 splx(s); 1858 return (error); 1859 #else 1860 return (0); 1861 #endif 1862 } 1863 #endif 1864 1865 static void 1866 wsdisplay_switch3_cb(void *arg, int error, int waitok) 1867 { 1868 device_t dv = arg; 1869 1870 wsdisplay_switch3(dv, error, waitok); 1871 } 1872 1873 static int 1874 wsdisplay_switch3(device_t dv, int error, int waitok) 1875 { 1876 struct wsdisplay_softc *sc = device_private(dv); 1877 int no; 1878 struct wsscreen *scr; 1879 1880 if (!(sc->sc_flags & SC_SWITCHPENDING)) { 1881 aprint_error_dev(dv, "wsdisplay_switch3: not switching\n"); 1882 return (EINVAL); 1883 } 1884 1885 no = sc->sc_screenwanted; 1886 if (no < 0 || no >= WSDISPLAY_MAXSCREEN) 1887 panic("wsdisplay_switch3: invalid screen %d", no); 1888 scr = sc->sc_scr[no]; 1889 if (!scr) { 1890 aprint_error_dev(dv, 1891 "wsdisplay_switch3: screen %d disappeared\n", no); 1892 error = ENXIO; 1893 } 1894 1895 if (error) { 1896 /* try to recover, avoid recursion */ 1897 1898 if (sc->sc_oldscreen == WSDISPLAY_NULLSCREEN) { 1899 aprint_error_dev(dv, "wsdisplay_switch3: giving up\n"); 1900 sc->sc_focus = 0; 1901 #ifdef WSDISPLAY_COMPAT_RAWKBD 1902 wsdisplay_update_rawkbd(sc, 0); 1903 #endif 1904 sc->sc_flags &= ~SC_SWITCHPENDING; 1905 return (error); 1906 } 1907 1908 sc->sc_screenwanted = sc->sc_oldscreen; 1909 sc->sc_oldscreen = WSDISPLAY_NULLSCREEN; 1910 return (wsdisplay_switch1(dv, 0, waitok)); 1911 } 1912 1913 if (scr->scr_syncops && !error) 1914 sc->sc_flags |= SC_XATTACHED; 1915 1916 sc->sc_flags &= ~SC_SWITCHPENDING; 1917 1918 if (!error && (scr->scr_flags & SCR_WAITACTIVE)) 1919 wakeup(scr); 1920 return (error); 1921 } 1922 1923 static void 1924 wsdisplay_switch2_cb(void *arg, int error, int waitok) 1925 { 1926 device_t dv = arg; 1927 1928 wsdisplay_switch2(dv, error, waitok); 1929 } 1930 1931 static int 1932 wsdisplay_switch2(device_t dv, int error, int waitok) 1933 { 1934 struct wsdisplay_softc *sc = device_private(dv); 1935 int no; 1936 struct wsscreen *scr; 1937 1938 if (!(sc->sc_flags & SC_SWITCHPENDING)) { 1939 aprint_error_dev(dv, "wsdisplay_switch2: not switching\n"); 1940 return (EINVAL); 1941 } 1942 1943 no = sc->sc_screenwanted; 1944 if (no < 0 || no >= WSDISPLAY_MAXSCREEN) 1945 panic("wsdisplay_switch2: invalid screen %d", no); 1946 scr = sc->sc_scr[no]; 1947 if (!scr) { 1948 aprint_error_dev(dv, 1949 "wsdisplay_switch2: screen %d disappeared\n", no); 1950 error = ENXIO; 1951 } 1952 1953 if (error) { 1954 /* try to recover, avoid recursion */ 1955 1956 if (sc->sc_oldscreen == WSDISPLAY_NULLSCREEN) { 1957 aprint_error_dev(dv, "wsdisplay_switch2: giving up\n"); 1958 sc->sc_focus = 0; 1959 sc->sc_flags &= ~SC_SWITCHPENDING; 1960 return (error); 1961 } 1962 1963 sc->sc_screenwanted = sc->sc_oldscreen; 1964 sc->sc_oldscreen = WSDISPLAY_NULLSCREEN; 1965 return (wsdisplay_switch1(dv, 0, waitok)); 1966 } 1967 1968 sc->sc_focusidx = no; 1969 sc->sc_focus = scr; 1970 1971 #ifdef WSDISPLAY_COMPAT_RAWKBD 1972 (void) wsdisplay_update_rawkbd(sc, scr); 1973 #endif 1974 /* keyboard map??? */ 1975 1976 if (scr->scr_syncops && 1977 !(sc->sc_isconsole && wsdisplay_cons_pollmode)) { 1978 error = (*scr->scr_syncops->attach)(scr->scr_synccookie, waitok, 1979 wsdisplay_switch3_cb, dv); 1980 if (error == EAGAIN) { 1981 /* switch will be done asynchronously */ 1982 return (0); 1983 } 1984 } 1985 1986 return (wsdisplay_switch3(dv, error, waitok)); 1987 } 1988 1989 static void 1990 wsdisplay_switch1_cb(void *arg, int error, int waitok) 1991 { 1992 device_t dv = arg; 1993 1994 wsdisplay_switch1(dv, error, waitok); 1995 } 1996 1997 static int 1998 wsdisplay_switch1(device_t dv, int error, int waitok) 1999 { 2000 struct wsdisplay_softc *sc = device_private(dv); 2001 int no; 2002 struct wsscreen *scr; 2003 2004 if (!(sc->sc_flags & SC_SWITCHPENDING)) { 2005 aprint_error_dev(dv, "wsdisplay_switch1: not switching\n"); 2006 return (EINVAL); 2007 } 2008 2009 no = sc->sc_screenwanted; 2010 if (no == WSDISPLAY_NULLSCREEN) { 2011 sc->sc_flags &= ~SC_SWITCHPENDING; 2012 if (!error) { 2013 sc->sc_flags &= ~SC_XATTACHED; 2014 sc->sc_focus = 0; 2015 } 2016 wakeup(sc); 2017 return (error); 2018 } 2019 if (no < 0 || no >= WSDISPLAY_MAXSCREEN) 2020 panic("wsdisplay_switch1: invalid screen %d", no); 2021 scr = sc->sc_scr[no]; 2022 if (!scr) { 2023 aprint_error_dev(dv, 2024 "wsdisplay_switch1: screen %d disappeared\n", no); 2025 error = ENXIO; 2026 } 2027 2028 if (error) { 2029 sc->sc_flags &= ~SC_SWITCHPENDING; 2030 return (error); 2031 } 2032 2033 sc->sc_flags &= ~SC_XATTACHED; 2034 2035 error = (*sc->sc_accessops->show_screen)(sc->sc_accesscookie, 2036 scr->scr_dconf->emulcookie, 2037 waitok, 2038 sc->sc_isconsole && wsdisplay_cons_pollmode ? 0 : wsdisplay_switch2_cb, dv); 2039 if (error == EAGAIN) { 2040 /* switch will be done asynchronously */ 2041 return (0); 2042 } 2043 2044 return (wsdisplay_switch2(dv, error, waitok)); 2045 } 2046 2047 int 2048 wsdisplay_switch(device_t dv, int no, int waitok) 2049 { 2050 struct wsdisplay_softc *sc = device_private(dv); 2051 int s, res = 0; 2052 struct wsscreen *scr; 2053 2054 if (no != WSDISPLAY_NULLSCREEN) { 2055 if ((no < 0 || no >= WSDISPLAY_MAXSCREEN)) 2056 return (EINVAL); 2057 if (sc->sc_scr[no] == NULL) 2058 return (ENXIO); 2059 } 2060 2061 wsdisplay_stat_inject(dv, WSCONS_EVENT_SCREEN_SWITCH, no); 2062 2063 s = spltty(); 2064 2065 if ((sc->sc_focus && no == sc->sc_focusidx) || 2066 (sc->sc_focus == NULL && no == WSDISPLAY_NULLSCREEN)) { 2067 splx(s); 2068 return (0); 2069 } 2070 2071 if (sc->sc_flags & SC_SWITCHPENDING) { 2072 splx(s); 2073 return (EBUSY); 2074 } 2075 2076 sc->sc_flags |= SC_SWITCHPENDING; 2077 sc->sc_screenwanted = no; 2078 2079 splx(s); 2080 2081 scr = sc->sc_focus; 2082 if (!scr) { 2083 sc->sc_oldscreen = WSDISPLAY_NULLSCREEN; 2084 return (wsdisplay_switch1(dv, 0, waitok)); 2085 } else 2086 sc->sc_oldscreen = sc->sc_focusidx; 2087 2088 if (scr->scr_syncops) { 2089 if (!(sc->sc_flags & SC_XATTACHED) || 2090 (sc->sc_isconsole && wsdisplay_cons_pollmode)) { 2091 /* nothing to do here */ 2092 return (wsdisplay_switch1(dv, 0, waitok)); 2093 } 2094 res = (*scr->scr_syncops->detach)(scr->scr_synccookie, waitok, 2095 wsdisplay_switch1_cb, dv); 2096 if (res == EAGAIN) { 2097 /* switch will be done asynchronously */ 2098 return (0); 2099 } 2100 } else if (scr->scr_flags & SCR_GRAPHICS) { 2101 /* no way to save state */ 2102 res = EBUSY; 2103 } 2104 2105 return (wsdisplay_switch1(dv, res, waitok)); 2106 } 2107 2108 void 2109 wsdisplay_reset(device_t dv, enum wsdisplay_resetops op) 2110 { 2111 struct wsdisplay_softc *sc = device_private(dv); 2112 struct wsscreen *scr; 2113 2114 KASSERT(sc != NULL); 2115 scr = sc->sc_focus; 2116 2117 if (!scr) 2118 return; 2119 2120 switch (op) { 2121 case WSDISPLAY_RESETEMUL: 2122 if (!WSSCREEN_HAS_EMULATOR(scr)) 2123 break; 2124 (*scr->scr_dconf->wsemul->reset)(scr->scr_dconf->wsemulcookie, 2125 WSEMUL_RESET); 2126 break; 2127 case WSDISPLAY_RESETCLOSE: 2128 wsdisplay_closescreen(sc, scr); 2129 break; 2130 } 2131 } 2132 2133 2134 bool 2135 wsdisplay_isconsole(struct wsdisplay_softc *sc) 2136 { 2137 return sc->sc_isconsole; 2138 } 2139 2140 /* 2141 * Interface for (external) VT switch / process synchronization code 2142 */ 2143 int 2144 wsscreen_attach_sync(struct wsscreen *scr, const struct wscons_syncops *ops, 2145 void *cookie) 2146 { 2147 if (scr->scr_syncops) { 2148 /* 2149 * The screen is already claimed. 2150 * Check if the owner is still alive. 2151 */ 2152 if ((*scr->scr_syncops->check)(scr->scr_synccookie)) 2153 return (EBUSY); 2154 } 2155 scr->scr_syncops = ops; 2156 scr->scr_synccookie = cookie; 2157 if (scr == scr->sc->sc_focus) 2158 scr->sc->sc_flags |= SC_XATTACHED; 2159 return (0); 2160 } 2161 2162 int 2163 wsscreen_detach_sync(struct wsscreen *scr) 2164 { 2165 if (!scr->scr_syncops) 2166 return (EINVAL); 2167 scr->scr_syncops = 0; 2168 if (scr == scr->sc->sc_focus) 2169 scr->sc->sc_flags &= ~SC_XATTACHED; 2170 return (0); 2171 } 2172 2173 int 2174 wsscreen_lookup_sync(struct wsscreen *scr, 2175 const struct wscons_syncops *ops, /* used as ID */ 2176 void **cookiep) 2177 { 2178 if (!scr->scr_syncops || ops != scr->scr_syncops) 2179 return (EINVAL); 2180 *cookiep = scr->scr_synccookie; 2181 return (0); 2182 } 2183 2184 /* 2185 * Interface to virtual screen stuff 2186 */ 2187 int 2188 wsdisplay_maxscreenidx(struct wsdisplay_softc *sc) 2189 { 2190 return (WSDISPLAY_MAXSCREEN - 1); 2191 } 2192 2193 int 2194 wsdisplay_screenstate(struct wsdisplay_softc *sc, int idx) 2195 { 2196 if (idx < 0 || idx >= WSDISPLAY_MAXSCREEN) 2197 return (EINVAL); 2198 if (!sc->sc_scr[idx]) 2199 return (ENXIO); 2200 return ((sc->sc_scr[idx]->scr_flags & SCR_OPEN) ? EBUSY : 0); 2201 } 2202 2203 int 2204 wsdisplay_getactivescreen(struct wsdisplay_softc *sc) 2205 { 2206 return (sc->sc_focus ? sc->sc_focusidx : WSDISPLAY_NULLSCREEN); 2207 } 2208 2209 int 2210 wsscreen_switchwait(struct wsdisplay_softc *sc, int no) 2211 { 2212 struct wsscreen *scr; 2213 int s, res = 0; 2214 2215 if (no == WSDISPLAY_NULLSCREEN) { 2216 s = spltty(); 2217 while (sc->sc_focus && res == 0) { 2218 res = tsleep(sc, PCATCH, "wswait", 0); 2219 } 2220 splx(s); 2221 return (res); 2222 } 2223 2224 if (no < 0 || no >= WSDISPLAY_MAXSCREEN) 2225 return (ENXIO); 2226 scr = sc->sc_scr[no]; 2227 if (!scr) 2228 return (ENXIO); 2229 2230 s = spltty(); 2231 if (scr != sc->sc_focus) { 2232 scr->scr_flags |= SCR_WAITACTIVE; 2233 res = tsleep(scr, PCATCH, "wswait", 0); 2234 if (scr != sc->sc_scr[no]) 2235 res = ENXIO; /* disappeared in the meantime */ 2236 else 2237 scr->scr_flags &= ~SCR_WAITACTIVE; 2238 } 2239 splx(s); 2240 return (res); 2241 } 2242 2243 void 2244 wsdisplay_kbdholdscreen(device_t dv, int hold) 2245 { 2246 struct wsdisplay_softc *sc = device_private(dv); 2247 struct wsscreen *scr; 2248 2249 scr = sc->sc_focus; 2250 2251 if (!scr) 2252 return; 2253 2254 if (hold) 2255 scr->scr_hold_screen = 1; 2256 else { 2257 scr->scr_hold_screen = 0; 2258 callout_schedule(&scr->scr_tty->t_rstrt_ch, 0); 2259 } 2260 } 2261 2262 #if NWSKBD > 0 2263 void 2264 wsdisplay_set_console_kbd(struct wsevsrc *src) 2265 { 2266 if (wsdisplay_console_device == NULL) { 2267 src->me_dispdv = NULL; 2268 return; 2269 } 2270 #if NWSMUX > 0 2271 if (wsmux_attach_sc((struct wsmux_softc *) 2272 wsdisplay_console_device->sc_input, src)) { 2273 src->me_dispdv = NULL; 2274 return; 2275 } 2276 #else 2277 wsdisplay_console_device->sc_input = src; 2278 #endif 2279 src->me_dispdv = wsdisplay_console_device->sc_dev; 2280 } 2281 #endif /* NWSKBD > 0 */ 2282 2283 /* 2284 * Console interface. 2285 */ 2286 void 2287 wsdisplay_cnputc(dev_t dev, int i) 2288 { 2289 struct wsscreen_internal *dc; 2290 u_char c = i; 2291 2292 if (!wsdisplay_console_initted) 2293 return; 2294 2295 if ((wsdisplay_console_device != NULL) && 2296 (wsdisplay_console_device->sc_scr[0] != NULL) && 2297 (wsdisplay_console_device->sc_scr[0]->scr_flags & SCR_GRAPHICS)) 2298 return; 2299 2300 dc = &wsdisplay_console_conf; 2301 (*dc->wsemul->output)(dc->wsemulcookie, &c, 1, 1); 2302 2303 #ifdef WSDISPLAY_MULTICONS 2304 if (wsdisplay_multicons_enable && wsdisplay_ocn && wsdisplay_ocn->cn_putc) 2305 wsdisplay_ocn->cn_putc(wsdisplay_ocn->cn_dev, i); 2306 #endif 2307 } 2308 2309 static int 2310 wsdisplay_getc(dev_t dev) 2311 { 2312 int c; 2313 2314 if (wsdisplay_cons_kbd_getc) { 2315 c = wsdisplay_cons_kbd_getc(wsdisplay_cons.cn_dev); 2316 if (c >= 0) 2317 return c; 2318 } 2319 2320 #ifdef WSDISPLAY_MULTICONS 2321 if (wsdisplay_multicons_enable && wsdisplay_ocn && wsdisplay_ocn->cn_getc) { 2322 c = wsdisplay_ocn->cn_getc(wsdisplay_ocn->cn_dev); 2323 if (c >= 0) 2324 return c; 2325 } 2326 #endif 2327 return -1; 2328 } 2329 2330 static void 2331 wsdisplay_pollc(dev_t dev, int on) 2332 { 2333 2334 wsdisplay_cons_pollmode = on; 2335 2336 /* notify to fb drivers */ 2337 if (wsdisplay_console_device != NULL && 2338 wsdisplay_console_device->sc_accessops->pollc != NULL) 2339 (*wsdisplay_console_device->sc_accessops->pollc) 2340 (wsdisplay_console_device->sc_accesscookie, on); 2341 2342 /* notify to kbd drivers */ 2343 if (wsdisplay_cons_kbd_pollc) 2344 (*wsdisplay_cons_kbd_pollc)(NODEV, on); 2345 2346 #ifdef WSDISPLAY_MULTICONS 2347 /* notify to old console driver */ 2348 if (wsdisplay_multicons_enable && wsdisplay_ocn && wsdisplay_ocn->cn_pollc) 2349 wsdisplay_ocn->cn_pollc(wsdisplay_ocn->cn_dev, on); 2350 #endif 2351 } 2352 2353 void 2354 wsdisplay_set_cons_kbd(int (*get)(dev_t), void (*poll)(dev_t, int), 2355 void (*bell)(dev_t, u_int, u_int, u_int)) 2356 { 2357 wsdisplay_cons.cn_bell = bell; 2358 wsdisplay_cons_kbd_getc = get; 2359 wsdisplay_cons_kbd_pollc = poll; 2360 } 2361 2362 void 2363 wsdisplay_unset_cons_kbd(void) 2364 { 2365 wsdisplay_cons.cn_bell = NULL; 2366 wsdisplay_cons_kbd_getc = NULL; 2367 wsdisplay_cons_kbd_pollc = NULL; 2368 } 2369 2370 #ifdef WSDISPLAY_MULTICONS 2371 SYSCTL_SETUP(sysctl_hw_wsdisplay_setup, "sysctl hw.wsdisplay subtree setup") 2372 { 2373 const struct sysctlnode *wsdisplay_node; 2374 2375 if (sysctl_createv(clog, 0, NULL, &wsdisplay_node, 2376 CTLFLAG_PERMANENT, 2377 CTLTYPE_NODE, "wsdisplay", NULL, 2378 NULL, 0, NULL, 0, 2379 CTL_HW, CTL_CREATE, CTL_EOL) != 0) 2380 return; 2381 2382 sysctl_createv(clog, 0, NULL, NULL, 2383 CTLFLAG_READWRITE, 2384 CTLTYPE_BOOL, "multicons", 2385 SYSCTL_DESCR("Enable wsdisplay multicons"), 2386 NULL, 0, &wsdisplay_multicons_enable, 0, 2387 CTL_HW, wsdisplay_node->sysctl_num, CTL_CREATE, CTL_EOL); 2388 } 2389 #endif 2390
Indexes created Sat Oct 25 01:09:55 GMT 2025