wsdisplay.c revision 1.150
1 /* $NetBSD: wsdisplay.c,v 1.150 2019/01/30 02:43:47 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 1.150 2019/01/30 02:43:47 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 if (wsdisplay_console_initted > 0) { 970 cn_tab = wsdisplay_ocn; 971 wsdisplay_console_initted = 0; 972 wsdisplay_console_attached = 0; 973 wsdisplay_console_device = NULL; 974 } 975 } 976 977 /* 978 * Tty and cdevsw functions. 979 */ 980 int 981 wsdisplayopen(dev_t dev, int flag, int mode, struct lwp *l) 982 { 983 struct wsdisplay_softc *sc; 984 struct tty *tp; 985 int newopen, error; 986 struct wsscreen *scr; 987 988 sc = device_lookup_private(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 989 if (sc == NULL) /* make sure it was attached */ 990 return (ENXIO); 991 992 if (ISWSDISPLAYSTAT(dev)) { 993 wsevent_init(&sc->evar, l->l_proc); 994 return (0); 995 } 996 997 if (ISWSDISPLAYCTL(dev)) 998 return (0); 999 1000 if (WSDISPLAYSCREEN(dev) >= WSDISPLAY_MAXSCREEN) 1001 return (ENXIO); 1002 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 1003 return (ENXIO); 1004 1005 if (WSSCREEN_HAS_TTY(scr)) { 1006 tp = scr->scr_tty; 1007 tp->t_oproc = wsdisplaystart; 1008 tp->t_param = wsdisplayparam; 1009 tp->t_dev = dev; 1010 newopen = (tp->t_state & TS_ISOPEN) == 0; 1011 1012 if (kauth_authorize_device_tty(l->l_cred, 1013 KAUTH_DEVICE_TTY_OPEN, tp)) 1014 return (EBUSY); 1015 1016 if (newopen) { 1017 ttychars(tp); 1018 tp->t_iflag = TTYDEF_IFLAG; 1019 tp->t_oflag = TTYDEF_OFLAG; 1020 tp->t_cflag = TTYDEF_CFLAG; 1021 tp->t_lflag = TTYDEF_LFLAG; 1022 tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED; 1023 wsdisplayparam(tp, &tp->t_termios); 1024 ttsetwater(tp); 1025 } 1026 tp->t_state |= TS_CARR_ON; 1027 1028 error = ((*tp->t_linesw->l_open)(dev, tp)); 1029 if (error) 1030 return (error); 1031 1032 if (newopen && WSSCREEN_HAS_EMULATOR(scr)) { 1033 /* set window sizes as appropriate, and reset 1034 the emulation */ 1035 tp->t_winsize.ws_row = scr->scr_dconf->scrdata->nrows; 1036 tp->t_winsize.ws_col = scr->scr_dconf->scrdata->ncols; 1037 1038 /* wsdisplay_set_emulation() */ 1039 } 1040 } 1041 1042 scr->scr_flags |= SCR_OPEN; 1043 return (0); 1044 } 1045 1046 int 1047 wsdisplayclose(dev_t dev, int flag, int mode, struct lwp *l) 1048 { 1049 device_t dv; 1050 struct wsdisplay_softc *sc; 1051 struct tty *tp; 1052 struct wsscreen *scr; 1053 1054 dv = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 1055 sc = device_private(dv); 1056 1057 if (ISWSDISPLAYSTAT(dev)) { 1058 wsevent_fini(&sc->evar); 1059 return (0); 1060 } 1061 1062 if (ISWSDISPLAYCTL(dev)) 1063 return (0); 1064 1065 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 1066 return (0); 1067 1068 if (WSSCREEN_HAS_TTY(scr)) { 1069 if (scr->scr_hold_screen) { 1070 int s; 1071 1072 /* XXX RESET KEYBOARD LEDS, etc. */ 1073 s = spltty(); /* avoid conflict with keyboard */ 1074 wsdisplay_kbdholdscreen(dv, 0); 1075 splx(s); 1076 } 1077 tp = scr->scr_tty; 1078 (*tp->t_linesw->l_close)(tp, flag); 1079 ttyclose(tp); 1080 } 1081 1082 if (scr->scr_syncops) 1083 (*scr->scr_syncops->destroy)(scr->scr_synccookie); 1084 1085 if (WSSCREEN_HAS_EMULATOR(scr)) { 1086 scr->scr_flags &= ~SCR_GRAPHICS; 1087 (*scr->scr_dconf->wsemul->reset)(scr->scr_dconf->wsemulcookie, 1088 WSEMUL_RESET); 1089 if (wsdisplay_clearonclose) 1090 (*scr->scr_dconf->wsemul->reset) 1091 (scr->scr_dconf->wsemulcookie, 1092 WSEMUL_CLEARSCREEN); 1093 } 1094 1095 #ifdef WSDISPLAY_COMPAT_RAWKBD 1096 if (scr->scr_rawkbd) { 1097 int kbmode = WSKBD_TRANSLATED; 1098 (void)wsdisplay_internal_ioctl(sc, scr, WSKBDIO_SETMODE, 1099 (void *)&kbmode, 0, l); 1100 } 1101 #endif 1102 1103 scr->scr_flags &= ~SCR_OPEN; 1104 1105 return (0); 1106 } 1107 1108 int 1109 wsdisplayread(dev_t dev, struct uio *uio, int flag) 1110 { 1111 struct wsdisplay_softc *sc; 1112 struct tty *tp; 1113 struct wsscreen *scr; 1114 int error; 1115 1116 sc = device_lookup_private(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 1117 1118 if (ISWSDISPLAYSTAT(dev)) { 1119 error = wsevent_read(&sc->evar, uio, flag); 1120 return (error); 1121 } 1122 1123 if (ISWSDISPLAYCTL(dev)) 1124 return (0); 1125 1126 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 1127 return (ENXIO); 1128 1129 if (!WSSCREEN_HAS_TTY(scr)) 1130 return (ENODEV); 1131 1132 tp = scr->scr_tty; 1133 return ((*tp->t_linesw->l_read)(tp, uio, flag)); 1134 } 1135 1136 int 1137 wsdisplaywrite(dev_t dev, struct uio *uio, int flag) 1138 { 1139 struct wsdisplay_softc *sc; 1140 struct tty *tp; 1141 struct wsscreen *scr; 1142 1143 sc = device_lookup_private(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 1144 1145 if (ISWSDISPLAYSTAT(dev)) { 1146 return (0); 1147 } 1148 1149 if (ISWSDISPLAYCTL(dev)) 1150 return (0); 1151 1152 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 1153 return (ENXIO); 1154 1155 if (!WSSCREEN_HAS_TTY(scr)) 1156 return (ENODEV); 1157 1158 tp = scr->scr_tty; 1159 return ((*tp->t_linesw->l_write)(tp, uio, flag)); 1160 } 1161 1162 int 1163 wsdisplaypoll(dev_t dev, int events, struct lwp *l) 1164 { 1165 struct wsdisplay_softc *sc; 1166 struct tty *tp; 1167 struct wsscreen *scr; 1168 1169 sc = device_lookup_private(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 1170 1171 if (ISWSDISPLAYSTAT(dev)) 1172 return (wsevent_poll(&sc->evar, events, l)); 1173 1174 if (ISWSDISPLAYCTL(dev)) 1175 return (0); 1176 1177 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 1178 return (POLLHUP); 1179 1180 if (!WSSCREEN_HAS_TTY(scr)) 1181 return (POLLERR); 1182 1183 tp = scr->scr_tty; 1184 return ((*tp->t_linesw->l_poll)(tp, events, l)); 1185 } 1186 1187 int 1188 wsdisplaykqfilter(dev_t dev, struct knote *kn) 1189 { 1190 struct wsdisplay_softc *sc; 1191 struct wsscreen *scr; 1192 1193 sc = device_lookup_private(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 1194 1195 if (ISWSDISPLAYCTL(dev)) 1196 return (1); 1197 1198 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 1199 return (1); 1200 1201 1202 if (WSSCREEN_HAS_TTY(scr)) 1203 return (ttykqfilter(dev, kn)); 1204 else 1205 return (1); 1206 } 1207 1208 struct tty * 1209 wsdisplaytty(dev_t dev) 1210 { 1211 struct wsdisplay_softc *sc; 1212 struct wsscreen *scr; 1213 1214 sc = device_lookup_private(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 1215 1216 if (ISWSDISPLAYSTAT(dev)) 1217 panic("wsdisplaytty() on status device"); 1218 1219 if (ISWSDISPLAYCTL(dev)) 1220 panic("wsdisplaytty() on ctl device"); 1221 1222 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 1223 return NULL; 1224 1225 return (scr->scr_tty); 1226 } 1227 1228 int 1229 wsdisplayioctl(dev_t dev, u_long cmd, void *data, int flag, struct lwp *l) 1230 { 1231 device_t dv; 1232 struct wsdisplay_softc *sc; 1233 struct tty *tp; 1234 int error; 1235 struct wsscreen *scr; 1236 1237 dv = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 1238 sc = device_private(dv); 1239 1240 #ifdef WSDISPLAY_COMPAT_USL 1241 error = wsdisplay_usl_ioctl1(dv, cmd, data, flag, l); 1242 if (error != EPASSTHROUGH) 1243 return (error); 1244 #endif 1245 1246 if (ISWSDISPLAYSTAT(dev)) 1247 return (wsdisplay_stat_ioctl(sc, cmd, data, flag, l)); 1248 1249 if (ISWSDISPLAYCTL(dev)) 1250 return (wsdisplay_cfg_ioctl(sc, cmd, data, flag, l)); 1251 1252 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 1253 return (ENXIO); 1254 1255 if (WSSCREEN_HAS_TTY(scr)) { 1256 tp = scr->scr_tty; 1257 1258 /* do the line discipline ioctls first */ 1259 error = (*tp->t_linesw->l_ioctl)(tp, cmd, data, flag, l); 1260 if (error != EPASSTHROUGH) 1261 return (error); 1262 1263 /* then the tty ioctls */ 1264 error = ttioctl(tp, cmd, data, flag, l); 1265 if (error != EPASSTHROUGH) 1266 return (error); 1267 } 1268 1269 #ifdef WSDISPLAY_COMPAT_USL 1270 error = wsdisplay_usl_ioctl2(sc, scr, cmd, data, flag, l); 1271 if (error != EPASSTHROUGH) 1272 return (error); 1273 #endif 1274 1275 return (wsdisplay_internal_ioctl(sc, scr, cmd, data, flag, l)); 1276 } 1277 1278 int 1279 wsdisplay_param(device_t dv, u_long cmd, struct wsdisplay_param *dp) 1280 { 1281 struct wsdisplay_softc *sc = device_private(dv); 1282 return ((*sc->sc_accessops->ioctl)(sc->sc_accesscookie, 1283 sc->sc_focus->scr_dconf->emulcookie, 1284 cmd, (void *)dp, 0, NULL)); 1285 } 1286 1287 int 1288 wsdisplay_internal_ioctl(struct wsdisplay_softc *sc, struct wsscreen *scr, 1289 u_long cmd, void *data, int flag, struct lwp *l) 1290 { 1291 int error; 1292 char namebuf[32]; 1293 struct wsdisplay_font fd; 1294 #ifdef WSDISPLAY_SCROLLSUPPORT 1295 struct wsdisplay_scroll_data *ksdp, *usdp; 1296 #endif 1297 1298 #if NWSKBD > 0 1299 struct wsevsrc *inp; 1300 1301 #ifdef WSDISPLAY_COMPAT_RAWKBD 1302 switch (cmd) { 1303 case WSKBDIO_SETMODE: 1304 scr->scr_rawkbd = (*(int *)data == WSKBD_RAW); 1305 return (wsdisplay_update_rawkbd(sc, scr)); 1306 case WSKBDIO_GETMODE: 1307 *(int *)data = (scr->scr_rawkbd ? 1308 WSKBD_RAW : WSKBD_TRANSLATED); 1309 return (0); 1310 } 1311 #endif 1312 inp = sc->sc_input; 1313 if (inp == NULL) 1314 return (ENXIO); 1315 error = wsevsrc_display_ioctl(inp, cmd, data, flag, l); 1316 if (error != EPASSTHROUGH) 1317 return (error); 1318 #endif /* NWSKBD > 0 */ 1319 1320 switch (cmd) { 1321 case WSDISPLAYIO_GMODE: 1322 if (scr->scr_flags & SCR_GRAPHICS) { 1323 if (scr->scr_flags & SCR_DUMBFB) 1324 *(u_int *)data = WSDISPLAYIO_MODE_DUMBFB; 1325 else 1326 *(u_int *)data = WSDISPLAYIO_MODE_MAPPED; 1327 } else 1328 *(u_int *)data = WSDISPLAYIO_MODE_EMUL; 1329 return (0); 1330 1331 case WSDISPLAYIO_SMODE: 1332 #define d (*(int *)data) 1333 if (d != WSDISPLAYIO_MODE_EMUL && 1334 d != WSDISPLAYIO_MODE_MAPPED && 1335 d != WSDISPLAYIO_MODE_DUMBFB) 1336 return (EINVAL); 1337 1338 if (WSSCREEN_HAS_EMULATOR(scr)) { 1339 scr->scr_flags &= ~SCR_GRAPHICS; 1340 if (d == WSDISPLAYIO_MODE_MAPPED || 1341 d == WSDISPLAYIO_MODE_DUMBFB) 1342 scr->scr_flags |= SCR_GRAPHICS | 1343 ((d == WSDISPLAYIO_MODE_DUMBFB) ? SCR_DUMBFB : 0); 1344 } else if (d == WSDISPLAYIO_MODE_EMUL) 1345 return (EINVAL); 1346 1347 (void)(*sc->sc_accessops->ioctl)(sc->sc_accesscookie, 1348 scr->scr_dconf->emulcookie, cmd, data, flag, l); 1349 1350 return (0); 1351 #undef d 1352 1353 #ifdef WSDISPLAY_SCROLLSUPPORT 1354 #define SETSCROLLLINES(dstp, srcp, dfltp) \ 1355 do { \ 1356 (dstp)->fastlines = ((srcp)->which & \ 1357 WSDISPLAY_SCROLL_DOFASTLINES) ? \ 1358 (srcp)->fastlines : (dfltp)->fastlines; \ 1359 (dstp)->slowlines = ((srcp)->which & \ 1360 WSDISPLAY_SCROLL_DOSLOWLINES) ? \ 1361 (srcp)->slowlines : (dfltp)->slowlines; \ 1362 (dstp)->which = WSDISPLAY_SCROLL_DOALL; \ 1363 } while (0) 1364 1365 1366 case WSDISPLAYIO_DSSCROLL: 1367 usdp = (struct wsdisplay_scroll_data *)data; 1368 ksdp = &sc->sc_scroll_values; 1369 SETSCROLLLINES(ksdp, usdp, ksdp); 1370 return (0); 1371 1372 case WSDISPLAYIO_DGSCROLL: 1373 usdp = (struct wsdisplay_scroll_data *)data; 1374 ksdp = &sc->sc_scroll_values; 1375 SETSCROLLLINES(usdp, ksdp, ksdp); 1376 return (0); 1377 #else 1378 case WSDISPLAYIO_DSSCROLL: 1379 case WSDISPLAYIO_DGSCROLL: 1380 return ENODEV; 1381 #endif 1382 1383 case WSDISPLAYIO_SFONT: 1384 #define d ((struct wsdisplay_usefontdata *)data) 1385 if (!sc->sc_accessops->load_font) 1386 return (EINVAL); 1387 if (d->name) { 1388 error = copyinstr(d->name, namebuf, sizeof(namebuf), 0); 1389 if (error) 1390 return (error); 1391 fd.name = namebuf; 1392 } else 1393 fd.name = 0; 1394 fd.data = 0; 1395 error = (*sc->sc_accessops->load_font)(sc->sc_accesscookie, 1396 scr->scr_dconf->emulcookie, &fd); 1397 if (!error && WSSCREEN_HAS_EMULATOR(scr)) { 1398 (*scr->scr_dconf->wsemul->reset) 1399 (scr->scr_dconf->wsemulcookie, WSEMUL_SYNCFONT); 1400 if (scr->scr_dconf->wsemul->resize) { 1401 (*scr->scr_dconf->wsemul->resize) 1402 (scr->scr_dconf->wsemulcookie, 1403 scr->scr_dconf->scrdata); 1404 /* update the tty's size */ 1405 scr->scr_tty->t_winsize.ws_row = 1406 scr->scr_dconf->scrdata->nrows; 1407 scr->scr_tty->t_winsize.ws_col = 1408 scr->scr_dconf->scrdata->ncols; 1409 /* send SIGWINCH to the process group on our tty */ 1410 kpreempt_disable(); 1411 ttysig(scr->scr_tty, TTYSIG_PG1, SIGWINCH); 1412 kpreempt_enable(); 1413 } 1414 } 1415 return (error); 1416 #undef d 1417 1418 #ifdef WSDISPLAY_CUSTOM_OUTPUT 1419 case WSDISPLAYIO_GMSGATTRS: 1420 #define d ((struct wsdisplay_msgattrs *)data) 1421 (*scr->scr_dconf->wsemul->getmsgattrs) 1422 (scr->scr_dconf->wsemulcookie, d); 1423 return (0); 1424 #undef d 1425 1426 case WSDISPLAYIO_SMSGATTRS: { 1427 #define d ((struct wsdisplay_msgattrs *)data) 1428 int i; 1429 for (i = 0; i < WSDISPLAY_MAXSCREEN; i++) 1430 if (sc->sc_scr[i] != NULL) 1431 (*sc->sc_scr[i]->scr_dconf->wsemul->setmsgattrs) 1432 (sc->sc_scr[i]->scr_dconf->wsemulcookie, 1433 sc->sc_scr[i]->scr_dconf->scrdata, 1434 d); 1435 } 1436 return (0); 1437 #undef d 1438 #else 1439 case WSDISPLAYIO_GMSGATTRS: 1440 case WSDISPLAYIO_SMSGATTRS: 1441 return (ENODEV); 1442 #endif 1443 case WSDISPLAYIO_SETVERSION: 1444 return wsevent_setversion(&sc->evar, *(int *)data); 1445 } 1446 1447 /* check ioctls for display */ 1448 return ((*sc->sc_accessops->ioctl)(sc->sc_accesscookie, 1449 scr->scr_dconf->emulcookie, cmd, data, flag, l)); 1450 } 1451 1452 int 1453 wsdisplay_stat_ioctl(struct wsdisplay_softc *sc, u_long cmd, void *data, 1454 int flag, struct lwp *l) 1455 { 1456 switch (cmd) { 1457 case WSDISPLAYIO_GETACTIVESCREEN: 1458 *(int*)data = wsdisplay_getactivescreen(sc); 1459 return (0); 1460 } 1461 1462 return (EPASSTHROUGH); 1463 } 1464 1465 int 1466 wsdisplay_cfg_ioctl(struct wsdisplay_softc *sc, u_long cmd, void *data, 1467 int flag, struct lwp *l) 1468 { 1469 int error; 1470 char *type, typebuf[16], *emul, emulbuf[16]; 1471 void *tbuf; 1472 u_int fontsz; 1473 #if defined(COMPAT_14) && NWSKBD > 0 1474 struct wsmux_device wsmuxdata; 1475 #endif 1476 #if NWSKBD > 0 1477 struct wsevsrc *inp; 1478 #endif 1479 1480 switch (cmd) { 1481 case WSDISPLAYIO_ADDSCREEN: 1482 #define d ((struct wsdisplay_addscreendata *)data) 1483 if (d->screentype) { 1484 error = copyinstr(d->screentype, typebuf, 1485 sizeof(typebuf), 0); 1486 if (error) 1487 return (error); 1488 type = typebuf; 1489 } else 1490 type = 0; 1491 if (d->emul) { 1492 error = copyinstr(d->emul, emulbuf, sizeof(emulbuf),0); 1493 if (error) 1494 return (error); 1495 emul = emulbuf; 1496 } else 1497 emul = 0; 1498 1499 if ((error = wsdisplay_addscreen(sc, d->idx, type, emul)) == 0) 1500 wsdisplay_addscreen_print(sc, d->idx, 0); 1501 return (error); 1502 #undef d 1503 case WSDISPLAYIO_DELSCREEN: 1504 #define d ((struct wsdisplay_delscreendata *)data) 1505 return (wsdisplay_delscreen(sc, d->idx, d->flags)); 1506 #undef d 1507 case WSDISPLAYIO_LDFONT: 1508 #define d ((struct wsdisplay_font *)data) 1509 if (!sc->sc_accessops->load_font) 1510 return (EINVAL); 1511 if (d->name) { 1512 error = copyinstr(d->name, typebuf, sizeof(typebuf), 0); 1513 if (error) 1514 return (error); 1515 d->name = typebuf; 1516 } else 1517 d->name = "loaded"; /* ??? */ 1518 fontsz = d->fontheight * d->stride * d->numchars; 1519 if (fontsz > WSDISPLAY_MAXFONTSZ) 1520 return (EINVAL); 1521 1522 tbuf = malloc(fontsz, M_DEVBUF, M_WAITOK); 1523 error = copyin(d->data, tbuf, fontsz); 1524 if (error) { 1525 free(tbuf, M_DEVBUF); 1526 return (error); 1527 } 1528 d->data = tbuf; 1529 error = 1530 (*sc->sc_accessops->load_font)(sc->sc_accesscookie, 0, d); 1531 free(tbuf, M_DEVBUF); 1532 #undef d 1533 return (error); 1534 1535 #if NWSKBD > 0 1536 #ifdef COMPAT_14 1537 case _O_WSDISPLAYIO_SETKEYBOARD: 1538 #define d ((struct wsdisplay_kbddata *)data) 1539 inp = sc->sc_input; 1540 if (inp == NULL) 1541 return (ENXIO); 1542 switch (d->op) { 1543 case _O_WSDISPLAY_KBD_ADD: 1544 if (d->idx == -1) { 1545 d->idx = wskbd_pickfree(); 1546 if (d->idx == -1) 1547 return (ENXIO); 1548 } 1549 wsmuxdata.type = WSMUX_KBD; 1550 wsmuxdata.idx = d->idx; 1551 return (wsevsrc_ioctl(inp, WSMUX_ADD_DEVICE, 1552 &wsmuxdata, flag, l)); 1553 case _O_WSDISPLAY_KBD_DEL: 1554 wsmuxdata.type = WSMUX_KBD; 1555 wsmuxdata.idx = d->idx; 1556 return (wsevsrc_ioctl(inp, WSMUX_REMOVE_DEVICE, 1557 &wsmuxdata, flag, l)); 1558 default: 1559 return (EINVAL); 1560 } 1561 #undef d 1562 #endif 1563 1564 case WSMUXIO_ADD_DEVICE: 1565 #define d ((struct wsmux_device *)data) 1566 if (d->idx == -1 && d->type == WSMUX_KBD) 1567 d->idx = wskbd_pickfree(); 1568 #undef d 1569 /* fall into */ 1570 case WSMUXIO_INJECTEVENT: 1571 case WSMUXIO_REMOVE_DEVICE: 1572 case WSMUXIO_LIST_DEVICES: 1573 inp = sc->sc_input; 1574 if (inp == NULL) 1575 return (ENXIO); 1576 return (wsevsrc_ioctl(inp, cmd, data, flag, l)); 1577 #endif /* NWSKBD > 0 */ 1578 1579 } 1580 return (EPASSTHROUGH); 1581 } 1582 1583 int 1584 wsdisplay_stat_inject(device_t dv, u_int type, int value) 1585 { 1586 struct wsdisplay_softc *sc = device_private(dv); 1587 struct wseventvar *evar; 1588 struct wscons_event event; 1589 1590 evar = &sc->evar; 1591 1592 if (evar == NULL) 1593 return (0); 1594 1595 if (evar->q == NULL) 1596 return (1); 1597 1598 event.type = type; 1599 event.value = value; 1600 if (wsevent_inject(evar, &event, 1) != 0) { 1601 log(LOG_WARNING, "wsdisplay: event queue overflow\n"); 1602 return (1); 1603 } 1604 1605 return (0); 1606 } 1607 1608 paddr_t 1609 wsdisplaymmap(dev_t dev, off_t offset, int prot) 1610 { 1611 struct wsdisplay_softc *sc; 1612 struct wsscreen *scr; 1613 1614 sc = device_lookup_private(&wsdisplay_cd, WSDISPLAYUNIT(dev)); 1615 1616 if (ISWSDISPLAYSTAT(dev)) 1617 return (-1); 1618 1619 if (ISWSDISPLAYCTL(dev)) 1620 return (-1); 1621 1622 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(dev)]) == NULL) 1623 return (-1); 1624 1625 if (!(scr->scr_flags & SCR_GRAPHICS)) 1626 return (-1); 1627 1628 /* pass mmap to display */ 1629 return ((*sc->sc_accessops->mmap)(sc->sc_accesscookie, 1630 scr->scr_dconf->emulcookie, offset, prot)); 1631 } 1632 1633 void 1634 wsdisplaystart(struct tty *tp) 1635 { 1636 struct wsdisplay_softc *sc; 1637 struct wsscreen *scr; 1638 int s, n; 1639 u_char *tbuf; 1640 1641 s = spltty(); 1642 if (tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP)) { 1643 splx(s); 1644 return; 1645 } 1646 sc = device_lookup_private(&wsdisplay_cd, WSDISPLAYUNIT(tp->t_dev)); 1647 if ((scr = sc->sc_scr[WSDISPLAYSCREEN(tp->t_dev)]) == NULL) { 1648 splx(s); 1649 return; 1650 } 1651 1652 if (scr->scr_hold_screen) { 1653 tp->t_state |= TS_TIMEOUT; 1654 splx(s); 1655 return; 1656 } 1657 tp->t_state |= TS_BUSY; 1658 splx(s); 1659 1660 #ifdef DIAGNOSTIC 1661 scr->scr_in_ttyoutput = 1; 1662 #endif 1663 1664 /* 1665 * Drain output from ring buffer. 1666 * The output will normally be in one contiguous chunk, but when the 1667 * ring wraps, it will be in two pieces.. one at the end of the ring, 1668 * the other at the start. For performance, rather than loop here, 1669 * we output one chunk, see if there's another one, and if so, output 1670 * it too. 1671 */ 1672 1673 n = ndqb(&tp->t_outq, 0); 1674 tbuf = tp->t_outq.c_cf; 1675 1676 if (!(scr->scr_flags & SCR_GRAPHICS)) { 1677 KASSERT(WSSCREEN_HAS_EMULATOR(scr)); 1678 (*scr->scr_dconf->wsemul->output)(scr->scr_dconf->wsemulcookie, 1679 tbuf, n, 0); 1680 #ifdef WSDISPLAY_MULTICONS 1681 if (wsdisplay_multicons_enable && 1682 scr->scr_dconf == &wsdisplay_console_conf && 1683 wsdisplay_ocn && wsdisplay_ocn->cn_putc) { 1684 for (int i = 0; i < n; i++) 1685 wsdisplay_ocn->cn_putc( 1686 wsdisplay_ocn->cn_dev, tbuf[i]); 1687 } 1688 #endif 1689 } 1690 ndflush(&tp->t_outq, n); 1691 1692 if ((n = ndqb(&tp->t_outq, 0)) > 0) { 1693 tbuf = tp->t_outq.c_cf; 1694 1695 if (!(scr->scr_flags & SCR_GRAPHICS)) { 1696 KASSERT(WSSCREEN_HAS_EMULATOR(scr)); 1697 (*scr->scr_dconf->wsemul->output) 1698 (scr->scr_dconf->wsemulcookie, tbuf, n, 0); 1699 1700 #ifdef WSDISPLAY_MULTICONS 1701 if (wsdisplay_multicons_enable && 1702 scr->scr_dconf == &wsdisplay_console_conf && 1703 wsdisplay_ocn && wsdisplay_ocn->cn_putc) { 1704 for (int i = 0; i < n; i++) 1705 wsdisplay_ocn->cn_putc( 1706 wsdisplay_ocn->cn_dev, tbuf[i]); 1707 } 1708 #endif 1709 } 1710 ndflush(&tp->t_outq, n); 1711 } 1712 1713 #ifdef DIAGNOSTIC 1714 scr->scr_in_ttyoutput = 0; 1715 #endif 1716 1717 s = spltty(); 1718 tp->t_state &= ~TS_BUSY; 1719 /* Come back if there's more to do */ 1720 if (ttypull(tp)) { 1721 tp->t_state |= TS_TIMEOUT; 1722 callout_schedule(&tp->t_rstrt_ch, (hz > 128) ? (hz / 128) : 1); 1723 } 1724 splx(s); 1725 } 1726 1727 void 1728 wsdisplaystop(struct tty *tp, int flag) 1729 { 1730 int s; 1731 1732 s = spltty(); 1733 if (ISSET(tp->t_state, TS_BUSY)) 1734 if (!ISSET(tp->t_state, TS_TTSTOP)) 1735 SET(tp->t_state, TS_FLUSH); 1736 splx(s); 1737 } 1738 1739 /* Set line parameters. */ 1740 int 1741 wsdisplayparam(struct tty *tp, struct termios *t) 1742 { 1743 1744 tp->t_ispeed = t->c_ispeed; 1745 tp->t_ospeed = t->c_ospeed; 1746 tp->t_cflag = t->c_cflag; 1747 return 0; 1748 } 1749 1750 /* 1751 * Callbacks for the emulation code. 1752 */ 1753 void 1754 wsdisplay_emulbell(void *v) 1755 { 1756 struct wsscreen *scr = v; 1757 1758 if (scr == NULL) /* console, before real attach */ 1759 return; 1760 1761 if (scr->scr_flags & SCR_GRAPHICS) /* can this happen? */ 1762 return; 1763 1764 (void) wsdisplay_internal_ioctl(scr->sc, scr, WSKBDIO_BELL, NULL, 1765 FWRITE, NULL); 1766 } 1767 1768 void 1769 wsdisplay_emulinput(void *v, const u_char *data, u_int count) 1770 { 1771 struct wsscreen *scr = v; 1772 struct tty *tp; 1773 int (*ifcn)(int, struct tty *); 1774 1775 if (v == NULL) /* console, before real attach */ 1776 return; 1777 1778 if (scr->scr_flags & SCR_GRAPHICS) /* XXX can't happen */ 1779 return; 1780 if (!WSSCREEN_HAS_TTY(scr)) 1781 return; 1782 1783 tp = scr->scr_tty; 1784 1785 /* 1786 * XXX bad hack to work around locking problems in tty.c: 1787 * ttyinput() will try to lock again, causing deadlock. 1788 * We assume that wsdisplay_emulinput() can only be called 1789 * from within wsdisplaystart(), and thus the tty lock 1790 * is already held. Use an entry point which doesn't lock. 1791 */ 1792 KASSERT(scr->scr_in_ttyoutput); 1793 ifcn = tp->t_linesw->l_rint; 1794 if (ifcn == ttyinput) 1795 ifcn = ttyinput_wlock; 1796 1797 while (count-- > 0) 1798 (*ifcn)(*data++, tp); 1799 } 1800 1801 /* 1802 * Calls from the keyboard interface. 1803 */ 1804 void 1805 wsdisplay_kbdinput(device_t dv, keysym_t ks) 1806 { 1807 struct wsdisplay_softc *sc = device_private(dv); 1808 struct wsscreen *scr; 1809 const char *dp; 1810 int count; 1811 struct tty *tp; 1812 1813 KASSERT(sc != NULL); 1814 1815 scr = sc->sc_focus; 1816 1817 if (!scr || !WSSCREEN_HAS_TTY(scr)) 1818 return; 1819 1820 tp = scr->scr_tty; 1821 1822 if (KS_GROUP(ks) == KS_GROUP_Plain && KS_VALUE(ks) <= 0x7f) 1823 (*tp->t_linesw->l_rint)(KS_VALUE(ks), tp); 1824 else if (WSSCREEN_HAS_EMULATOR(scr)) { 1825 count = (*scr->scr_dconf->wsemul->translate) 1826 (scr->scr_dconf->wsemulcookie, ks, &dp); 1827 while (count-- > 0) 1828 (*tp->t_linesw->l_rint)((unsigned char)(*dp++), tp); 1829 } 1830 } 1831 1832 #if defined(WSDISPLAY_COMPAT_RAWKBD) 1833 int 1834 wsdisplay_update_rawkbd(struct wsdisplay_softc *sc, struct wsscreen *scr) 1835 { 1836 #if NWSKBD > 0 1837 int s, raw, data, error; 1838 struct wsevsrc *inp; 1839 1840 s = spltty(); 1841 1842 raw = (scr ? scr->scr_rawkbd : 0); 1843 1844 if (scr != sc->sc_focus || 1845 sc->sc_rawkbd == raw) { 1846 splx(s); 1847 return (0); 1848 } 1849 1850 data = raw ? WSKBD_RAW : WSKBD_TRANSLATED; 1851 inp = sc->sc_input; 1852 if (inp == NULL) { 1853 splx(s); 1854 return (ENXIO); 1855 } 1856 error = wsevsrc_display_ioctl(inp, WSKBDIO_SETMODE, &data, 0, 0); 1857 if (!error) 1858 sc->sc_rawkbd = raw; 1859 splx(s); 1860 return (error); 1861 #else 1862 return (0); 1863 #endif 1864 } 1865 #endif 1866 1867 static void 1868 wsdisplay_switch3_cb(void *arg, int error, int waitok) 1869 { 1870 device_t dv = arg; 1871 1872 wsdisplay_switch3(dv, error, waitok); 1873 } 1874 1875 static int 1876 wsdisplay_switch3(device_t dv, int error, int waitok) 1877 { 1878 struct wsdisplay_softc *sc = device_private(dv); 1879 int no; 1880 struct wsscreen *scr; 1881 1882 if (!(sc->sc_flags & SC_SWITCHPENDING)) { 1883 aprint_error_dev(dv, "wsdisplay_switch3: not switching\n"); 1884 return (EINVAL); 1885 } 1886 1887 no = sc->sc_screenwanted; 1888 if (no < 0 || no >= WSDISPLAY_MAXSCREEN) 1889 panic("wsdisplay_switch3: invalid screen %d", no); 1890 scr = sc->sc_scr[no]; 1891 if (!scr) { 1892 aprint_error_dev(dv, 1893 "wsdisplay_switch3: screen %d disappeared\n", no); 1894 error = ENXIO; 1895 } 1896 1897 if (error) { 1898 /* try to recover, avoid recursion */ 1899 1900 if (sc->sc_oldscreen == WSDISPLAY_NULLSCREEN) { 1901 aprint_error_dev(dv, "wsdisplay_switch3: giving up\n"); 1902 sc->sc_focus = 0; 1903 #ifdef WSDISPLAY_COMPAT_RAWKBD 1904 wsdisplay_update_rawkbd(sc, 0); 1905 #endif 1906 sc->sc_flags &= ~SC_SWITCHPENDING; 1907 return (error); 1908 } 1909 1910 sc->sc_screenwanted = sc->sc_oldscreen; 1911 sc->sc_oldscreen = WSDISPLAY_NULLSCREEN; 1912 return (wsdisplay_switch1(dv, 0, waitok)); 1913 } 1914 1915 if (scr->scr_syncops && !error) 1916 sc->sc_flags |= SC_XATTACHED; 1917 1918 sc->sc_flags &= ~SC_SWITCHPENDING; 1919 1920 if (!error && (scr->scr_flags & SCR_WAITACTIVE)) 1921 wakeup(scr); 1922 return (error); 1923 } 1924 1925 static void 1926 wsdisplay_switch2_cb(void *arg, int error, int waitok) 1927 { 1928 device_t dv = arg; 1929 1930 wsdisplay_switch2(dv, error, waitok); 1931 } 1932 1933 static int 1934 wsdisplay_switch2(device_t dv, int error, int waitok) 1935 { 1936 struct wsdisplay_softc *sc = device_private(dv); 1937 int no; 1938 struct wsscreen *scr; 1939 1940 if (!(sc->sc_flags & SC_SWITCHPENDING)) { 1941 aprint_error_dev(dv, "wsdisplay_switch2: not switching\n"); 1942 return (EINVAL); 1943 } 1944 1945 no = sc->sc_screenwanted; 1946 if (no < 0 || no >= WSDISPLAY_MAXSCREEN) 1947 panic("wsdisplay_switch2: invalid screen %d", no); 1948 scr = sc->sc_scr[no]; 1949 if (!scr) { 1950 aprint_error_dev(dv, 1951 "wsdisplay_switch2: screen %d disappeared\n", no); 1952 error = ENXIO; 1953 } 1954 1955 if (error) { 1956 /* try to recover, avoid recursion */ 1957 1958 if (sc->sc_oldscreen == WSDISPLAY_NULLSCREEN) { 1959 aprint_error_dev(dv, "wsdisplay_switch2: giving up\n"); 1960 sc->sc_focus = 0; 1961 sc->sc_flags &= ~SC_SWITCHPENDING; 1962 return (error); 1963 } 1964 1965 sc->sc_screenwanted = sc->sc_oldscreen; 1966 sc->sc_oldscreen = WSDISPLAY_NULLSCREEN; 1967 return (wsdisplay_switch1(dv, 0, waitok)); 1968 } 1969 1970 sc->sc_focusidx = no; 1971 sc->sc_focus = scr; 1972 1973 #ifdef WSDISPLAY_COMPAT_RAWKBD 1974 (void) wsdisplay_update_rawkbd(sc, scr); 1975 #endif 1976 /* keyboard map??? */ 1977 1978 if (scr->scr_syncops && 1979 !(sc->sc_isconsole && wsdisplay_cons_pollmode)) { 1980 error = (*scr->scr_syncops->attach)(scr->scr_synccookie, waitok, 1981 wsdisplay_switch3_cb, dv); 1982 if (error == EAGAIN) { 1983 /* switch will be done asynchronously */ 1984 return (0); 1985 } 1986 } 1987 1988 return (wsdisplay_switch3(dv, error, waitok)); 1989 } 1990 1991 static void 1992 wsdisplay_switch1_cb(void *arg, int error, int waitok) 1993 { 1994 device_t dv = arg; 1995 1996 wsdisplay_switch1(dv, error, waitok); 1997 } 1998 1999 static int 2000 wsdisplay_switch1(device_t dv, int error, int waitok) 2001 { 2002 struct wsdisplay_softc *sc = device_private(dv); 2003 int no; 2004 struct wsscreen *scr; 2005 2006 if (!(sc->sc_flags & SC_SWITCHPENDING)) { 2007 aprint_error_dev(dv, "wsdisplay_switch1: not switching\n"); 2008 return (EINVAL); 2009 } 2010 2011 no = sc->sc_screenwanted; 2012 if (no == WSDISPLAY_NULLSCREEN) { 2013 sc->sc_flags &= ~SC_SWITCHPENDING; 2014 if (!error) { 2015 sc->sc_flags &= ~SC_XATTACHED; 2016 sc->sc_focus = 0; 2017 } 2018 wakeup(sc); 2019 return (error); 2020 } 2021 if (no < 0 || no >= WSDISPLAY_MAXSCREEN) 2022 panic("wsdisplay_switch1: invalid screen %d", no); 2023 scr = sc->sc_scr[no]; 2024 if (!scr) { 2025 aprint_error_dev(dv, 2026 "wsdisplay_switch1: screen %d disappeared\n", no); 2027 error = ENXIO; 2028 } 2029 2030 if (error) { 2031 sc->sc_flags &= ~SC_SWITCHPENDING; 2032 return (error); 2033 } 2034 2035 sc->sc_flags &= ~SC_XATTACHED; 2036 2037 error = (*sc->sc_accessops->show_screen)(sc->sc_accesscookie, 2038 scr->scr_dconf->emulcookie, 2039 waitok, 2040 sc->sc_isconsole && wsdisplay_cons_pollmode ? 0 : wsdisplay_switch2_cb, dv); 2041 if (error == EAGAIN) { 2042 /* switch will be done asynchronously */ 2043 return (0); 2044 } 2045 2046 return (wsdisplay_switch2(dv, error, waitok)); 2047 } 2048 2049 int 2050 wsdisplay_switch(device_t dv, int no, int waitok) 2051 { 2052 struct wsdisplay_softc *sc = device_private(dv); 2053 int s, res = 0; 2054 struct wsscreen *scr; 2055 2056 if (no != WSDISPLAY_NULLSCREEN) { 2057 if ((no < 0 || no >= WSDISPLAY_MAXSCREEN)) 2058 return (EINVAL); 2059 if (sc->sc_scr[no] == NULL) 2060 return (ENXIO); 2061 } 2062 2063 wsdisplay_stat_inject(dv, WSCONS_EVENT_SCREEN_SWITCH, no); 2064 2065 s = spltty(); 2066 2067 if ((sc->sc_focus && no == sc->sc_focusidx) || 2068 (sc->sc_focus == NULL && no == WSDISPLAY_NULLSCREEN)) { 2069 splx(s); 2070 return (0); 2071 } 2072 2073 if (sc->sc_flags & SC_SWITCHPENDING) { 2074 splx(s); 2075 return (EBUSY); 2076 } 2077 2078 sc->sc_flags |= SC_SWITCHPENDING; 2079 sc->sc_screenwanted = no; 2080 2081 splx(s); 2082 2083 scr = sc->sc_focus; 2084 if (!scr) { 2085 sc->sc_oldscreen = WSDISPLAY_NULLSCREEN; 2086 return (wsdisplay_switch1(dv, 0, waitok)); 2087 } else 2088 sc->sc_oldscreen = sc->sc_focusidx; 2089 2090 if (scr->scr_syncops) { 2091 if (!(sc->sc_flags & SC_XATTACHED) || 2092 (sc->sc_isconsole && wsdisplay_cons_pollmode)) { 2093 /* nothing to do here */ 2094 return (wsdisplay_switch1(dv, 0, waitok)); 2095 } 2096 res = (*scr->scr_syncops->detach)(scr->scr_synccookie, waitok, 2097 wsdisplay_switch1_cb, dv); 2098 if (res == EAGAIN) { 2099 /* switch will be done asynchronously */ 2100 return (0); 2101 } 2102 } else if (scr->scr_flags & SCR_GRAPHICS) { 2103 /* no way to save state */ 2104 res = EBUSY; 2105 } 2106 2107 return (wsdisplay_switch1(dv, res, waitok)); 2108 } 2109 2110 void 2111 wsdisplay_reset(device_t dv, enum wsdisplay_resetops op) 2112 { 2113 struct wsdisplay_softc *sc = device_private(dv); 2114 struct wsscreen *scr; 2115 2116 KASSERT(sc != NULL); 2117 scr = sc->sc_focus; 2118 2119 if (!scr) 2120 return; 2121 2122 switch (op) { 2123 case WSDISPLAY_RESETEMUL: 2124 if (!WSSCREEN_HAS_EMULATOR(scr)) 2125 break; 2126 (*scr->scr_dconf->wsemul->reset)(scr->scr_dconf->wsemulcookie, 2127 WSEMUL_RESET); 2128 break; 2129 case WSDISPLAY_RESETCLOSE: 2130 wsdisplay_closescreen(sc, scr); 2131 break; 2132 } 2133 } 2134 2135 2136 bool 2137 wsdisplay_isconsole(struct wsdisplay_softc *sc) 2138 { 2139 return sc->sc_isconsole; 2140 } 2141 2142 /* 2143 * Interface for (external) VT switch / process synchronization code 2144 */ 2145 int 2146 wsscreen_attach_sync(struct wsscreen *scr, const struct wscons_syncops *ops, 2147 void *cookie) 2148 { 2149 if (scr->scr_syncops) { 2150 /* 2151 * The screen is already claimed. 2152 * Check if the owner is still alive. 2153 */ 2154 if ((*scr->scr_syncops->check)(scr->scr_synccookie)) 2155 return (EBUSY); 2156 } 2157 scr->scr_syncops = ops; 2158 scr->scr_synccookie = cookie; 2159 if (scr == scr->sc->sc_focus) 2160 scr->sc->sc_flags |= SC_XATTACHED; 2161 return (0); 2162 } 2163 2164 int 2165 wsscreen_detach_sync(struct wsscreen *scr) 2166 { 2167 if (!scr->scr_syncops) 2168 return (EINVAL); 2169 scr->scr_syncops = 0; 2170 if (scr == scr->sc->sc_focus) 2171 scr->sc->sc_flags &= ~SC_XATTACHED; 2172 return (0); 2173 } 2174 2175 int 2176 wsscreen_lookup_sync(struct wsscreen *scr, 2177 const struct wscons_syncops *ops, /* used as ID */ 2178 void **cookiep) 2179 { 2180 if (!scr->scr_syncops || ops != scr->scr_syncops) 2181 return (EINVAL); 2182 *cookiep = scr->scr_synccookie; 2183 return (0); 2184 } 2185 2186 /* 2187 * Interface to virtual screen stuff 2188 */ 2189 int 2190 wsdisplay_maxscreenidx(struct wsdisplay_softc *sc) 2191 { 2192 return (WSDISPLAY_MAXSCREEN - 1); 2193 } 2194 2195 int 2196 wsdisplay_screenstate(struct wsdisplay_softc *sc, int idx) 2197 { 2198 if (idx < 0 || idx >= WSDISPLAY_MAXSCREEN) 2199 return (EINVAL); 2200 if (!sc->sc_scr[idx]) 2201 return (ENXIO); 2202 return ((sc->sc_scr[idx]->scr_flags & SCR_OPEN) ? EBUSY : 0); 2203 } 2204 2205 int 2206 wsdisplay_getactivescreen(struct wsdisplay_softc *sc) 2207 { 2208 return (sc->sc_focus ? sc->sc_focusidx : WSDISPLAY_NULLSCREEN); 2209 } 2210 2211 int 2212 wsscreen_switchwait(struct wsdisplay_softc *sc, int no) 2213 { 2214 struct wsscreen *scr; 2215 int s, res = 0; 2216 2217 if (no == WSDISPLAY_NULLSCREEN) { 2218 s = spltty(); 2219 while (sc->sc_focus && res == 0) { 2220 res = tsleep(sc, PCATCH, "wswait", 0); 2221 } 2222 splx(s); 2223 return (res); 2224 } 2225 2226 if (no < 0 || no >= WSDISPLAY_MAXSCREEN) 2227 return (ENXIO); 2228 scr = sc->sc_scr[no]; 2229 if (!scr) 2230 return (ENXIO); 2231 2232 s = spltty(); 2233 if (scr != sc->sc_focus) { 2234 scr->scr_flags |= SCR_WAITACTIVE; 2235 res = tsleep(scr, PCATCH, "wswait", 0); 2236 if (scr != sc->sc_scr[no]) 2237 res = ENXIO; /* disappeared in the meantime */ 2238 else 2239 scr->scr_flags &= ~SCR_WAITACTIVE; 2240 } 2241 splx(s); 2242 return (res); 2243 } 2244 2245 void 2246 wsdisplay_kbdholdscreen(device_t dv, int hold) 2247 { 2248 struct wsdisplay_softc *sc = device_private(dv); 2249 struct wsscreen *scr; 2250 2251 scr = sc->sc_focus; 2252 2253 if (!scr) 2254 return; 2255 2256 if (hold) 2257 scr->scr_hold_screen = 1; 2258 else { 2259 scr->scr_hold_screen = 0; 2260 callout_schedule(&scr->scr_tty->t_rstrt_ch, 0); 2261 } 2262 } 2263 2264 #if NWSKBD > 0 2265 void 2266 wsdisplay_set_console_kbd(struct wsevsrc *src) 2267 { 2268 if (wsdisplay_console_device == NULL) { 2269 src->me_dispdv = NULL; 2270 return; 2271 } 2272 #if NWSMUX > 0 2273 if (wsmux_attach_sc((struct wsmux_softc *) 2274 wsdisplay_console_device->sc_input, src)) { 2275 src->me_dispdv = NULL; 2276 return; 2277 } 2278 #else 2279 wsdisplay_console_device->sc_input = src; 2280 #endif 2281 src->me_dispdv = wsdisplay_console_device->sc_dev; 2282 } 2283 #endif /* NWSKBD > 0 */ 2284 2285 /* 2286 * Console interface. 2287 */ 2288 void 2289 wsdisplay_cnputc(dev_t dev, int i) 2290 { 2291 struct wsscreen_internal *dc; 2292 u_char c = i; 2293 2294 if (!wsdisplay_console_initted) 2295 return; 2296 2297 if ((wsdisplay_console_device != NULL) && 2298 (wsdisplay_console_device->sc_scr[0] != NULL) && 2299 (wsdisplay_console_device->sc_scr[0]->scr_flags & SCR_GRAPHICS)) 2300 return; 2301 2302 dc = &wsdisplay_console_conf; 2303 (*dc->wsemul->output)(dc->wsemulcookie, &c, 1, 1); 2304 2305 #ifdef WSDISPLAY_MULTICONS 2306 if (wsdisplay_multicons_enable && wsdisplay_ocn && wsdisplay_ocn->cn_putc) 2307 wsdisplay_ocn->cn_putc(wsdisplay_ocn->cn_dev, i); 2308 #endif 2309 } 2310 2311 static int 2312 wsdisplay_getc(dev_t dev) 2313 { 2314 int c; 2315 2316 if (wsdisplay_cons_kbd_getc) { 2317 c = wsdisplay_cons_kbd_getc(wsdisplay_cons.cn_dev); 2318 if (c >= 0) 2319 return c; 2320 } 2321 2322 #ifdef WSDISPLAY_MULTICONS 2323 if (wsdisplay_multicons_enable && wsdisplay_ocn && wsdisplay_ocn->cn_getc) { 2324 c = wsdisplay_ocn->cn_getc(wsdisplay_ocn->cn_dev); 2325 if (c >= 0) 2326 return c; 2327 } 2328 #endif 2329 return -1; 2330 } 2331 2332 static void 2333 wsdisplay_pollc(dev_t dev, int on) 2334 { 2335 2336 wsdisplay_cons_pollmode = on; 2337 2338 /* notify to fb drivers */ 2339 if (wsdisplay_console_device != NULL && 2340 wsdisplay_console_device->sc_accessops->pollc != NULL) 2341 (*wsdisplay_console_device->sc_accessops->pollc) 2342 (wsdisplay_console_device->sc_accesscookie, on); 2343 2344 /* notify to kbd drivers */ 2345 if (wsdisplay_cons_kbd_pollc) 2346 (*wsdisplay_cons_kbd_pollc)(NODEV, on); 2347 2348 #ifdef WSDISPLAY_MULTICONS 2349 /* notify to old console driver */ 2350 if (wsdisplay_multicons_enable && wsdisplay_ocn && wsdisplay_ocn->cn_pollc) 2351 wsdisplay_ocn->cn_pollc(wsdisplay_ocn->cn_dev, on); 2352 #endif 2353 } 2354 2355 void 2356 wsdisplay_set_cons_kbd(int (*get)(dev_t), void (*poll)(dev_t, int), 2357 void (*bell)(dev_t, u_int, u_int, u_int)) 2358 { 2359 wsdisplay_cons.cn_bell = bell; 2360 wsdisplay_cons_kbd_getc = get; 2361 wsdisplay_cons_kbd_pollc = poll; 2362 } 2363 2364 void 2365 wsdisplay_unset_cons_kbd(void) 2366 { 2367 wsdisplay_cons.cn_bell = NULL; 2368 wsdisplay_cons_kbd_getc = NULL; 2369 wsdisplay_cons_kbd_pollc = NULL; 2370 } 2371 2372 #ifdef WSDISPLAY_MULTICONS 2373 SYSCTL_SETUP(sysctl_hw_wsdisplay_setup, "sysctl hw.wsdisplay subtree setup") 2374 { 2375 const struct sysctlnode *wsdisplay_node; 2376 2377 if (sysctl_createv(clog, 0, NULL, &wsdisplay_node, 2378 CTLFLAG_PERMANENT, 2379 CTLTYPE_NODE, "wsdisplay", NULL, 2380 NULL, 0, NULL, 0, 2381 CTL_HW, CTL_CREATE, CTL_EOL) != 0) 2382 return; 2383 2384 sysctl_createv(clog, 0, NULL, NULL, 2385 CTLFLAG_READWRITE, 2386 CTLTYPE_BOOL, "multicons", 2387 SYSCTL_DESCR("Enable wsdisplay multicons"), 2388 NULL, 0, &wsdisplay_multicons_enable, 0, 2389 CTL_HW, wsdisplay_node->sysctl_num, CTL_CREATE, CTL_EOL); 2390 } 2391 #endif 2392
Indexes created Sun Oct 19 21:10:07 GMT 2025