1 /*- 2 * Copyright (c) 2009, 2013 The FreeBSD Foundation 3 * All rights reserved. 4 * 5 * This software was developed by Ed Schouten under sponsorship from the 6 * FreeBSD Foundation. 7 * 8 * Portions of this software were developed by Oleksandr Rybalko 9 * under sponsorship from the FreeBSD Foundation. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 #include <sys/cdefs.h> 34 __FBSDID("$FreeBSD$"); 35 36 #include "opt_compat.h" 37 38 #include <sys/param.h> 39 #include <sys/consio.h> 40 #include <sys/eventhandler.h> 41 #include <sys/fbio.h> 42 #include <sys/kbio.h> 43 #include <sys/kdb.h> 44 #include <sys/kernel.h> 45 #include <sys/lock.h> 46 #include <sys/malloc.h> 47 #include <sys/mutex.h> 48 #include <sys/power.h> 49 #include <sys/priv.h> 50 #include <sys/proc.h> 51 #include <sys/reboot.h> 52 #include <sys/systm.h> 53 #include <sys/terminal.h> 54 55 #include <dev/kbd/kbdreg.h> 56 #include <dev/vt/vt.h> 57 58 #if defined(__i386__) || defined(__amd64__) 59 #include <machine/psl.h> 60 #include <machine/frame.h> 61 #endif 62 63 static tc_bell_t vtterm_bell; 64 static tc_cursor_t vtterm_cursor; 65 static tc_putchar_t vtterm_putchar; 66 static tc_fill_t vtterm_fill; 67 static tc_copy_t vtterm_copy; 68 static tc_param_t vtterm_param; 69 static tc_done_t vtterm_done; 70 71 static tc_cnprobe_t vtterm_cnprobe; 72 static tc_cngetc_t vtterm_cngetc; 73 74 static tc_cngrab_t vtterm_cngrab; 75 static tc_cnungrab_t vtterm_cnungrab; 76 77 static tc_opened_t vtterm_opened; 78 static tc_ioctl_t vtterm_ioctl; 79 static tc_mmap_t vtterm_mmap; 80 81 const struct terminal_class vt_termclass = { 82 .tc_bell = vtterm_bell, 83 .tc_cursor = vtterm_cursor, 84 .tc_putchar = vtterm_putchar, 85 .tc_fill = vtterm_fill, 86 .tc_copy = vtterm_copy, 87 .tc_param = vtterm_param, 88 .tc_done = vtterm_done, 89 90 .tc_cnprobe = vtterm_cnprobe, 91 .tc_cngetc = vtterm_cngetc, 92 93 .tc_cngrab = vtterm_cngrab, 94 .tc_cnungrab = vtterm_cnungrab, 95 96 .tc_opened = vtterm_opened, 97 .tc_ioctl = vtterm_ioctl, 98 .tc_mmap = vtterm_mmap, 99 }; 100 101 /* 102 * Use a constant timer of 25 Hz to redraw the screen. 103 * 104 * XXX: In theory we should only fire up the timer when there is really 105 * activity. Unfortunately we cannot always start timers. We really 106 * don't want to process kernel messages synchronously, because it 107 * really slows down the system. 108 */ 109 #define VT_TIMERFREQ 25 110 111 /* Bell pitch/duration. */ 112 #define VT_BELLDURATION ((5 * hz + 99) / 100) 113 #define VT_BELLPITCH 800 114 115 #define VT_LOCK(vd) mtx_lock(&(vd)->vd_lock) 116 #define VT_UNLOCK(vd) mtx_unlock(&(vd)->vd_lock) 117 118 #define VT_UNIT(vw) ((vw)->vw_device->vd_unit * VT_MAXWINDOWS + \ 119 (vw)->vw_number) 120 121 static SYSCTL_NODE(_kern, OID_AUTO, vt, CTLFLAG_RD, 0, "vt(9) parameters"); 122 VT_SYSCTL_INT(enable_altgr, 1, "Enable AltGr key (Do not assume R.Alt as Alt)"); 123 VT_SYSCTL_INT(enable_bell, 1, "Enable bell"); 124 VT_SYSCTL_INT(debug, 0, "vt(9) debug level"); 125 VT_SYSCTL_INT(deadtimer, 15, "Time to wait busy process in VT_PROCESS mode"); 126 VT_SYSCTL_INT(suspendswitch, 1, "Switch to VT0 before suspend"); 127 128 /* Allow to disable some keyboard combinations. */ 129 VT_SYSCTL_INT(kbd_halt, 1, "Enable halt keyboard combination. " 130 "See kbdmap(5) to configure."); 131 VT_SYSCTL_INT(kbd_poweroff, 1, "Enable Power Off keyboard combination. " 132 "See kbdmap(5) to configure."); 133 VT_SYSCTL_INT(kbd_reboot, 1, "Enable reboot keyboard combination. " 134 "See kbdmap(5) to configure (typically Ctrl-Alt-Delete)."); 135 VT_SYSCTL_INT(kbd_debug, 1, "Enable key combination to enter debugger. " 136 "See kbdmap(5) to configure (typically Ctrl-Alt-Esc)."); 137 VT_SYSCTL_INT(kbd_panic, 0, "Enable request to panic. " 138 "See kbdmap(5) to configure."); 139 140 static struct vt_device vt_consdev; 141 static unsigned int vt_unit = 0; 142 static MALLOC_DEFINE(M_VT, "vt", "vt device"); 143 struct vt_device *main_vd = &vt_consdev; 144 145 /* Boot logo. */ 146 extern unsigned int vt_logo_width; 147 extern unsigned int vt_logo_height; 148 extern unsigned int vt_logo_depth; 149 extern unsigned char vt_logo_image[]; 150 151 /* Font. */ 152 extern struct vt_font vt_font_default; 153 #ifndef SC_NO_CUTPASTE 154 extern struct vt_mouse_cursor vt_default_mouse_pointer; 155 #endif 156 157 static int signal_vt_rel(struct vt_window *); 158 static int signal_vt_acq(struct vt_window *); 159 static int finish_vt_rel(struct vt_window *, int, int *); 160 static int finish_vt_acq(struct vt_window *); 161 static int vt_window_switch(struct vt_window *); 162 static int vt_late_window_switch(struct vt_window *); 163 static int vt_proc_alive(struct vt_window *); 164 static void vt_resize(struct vt_device *); 165 static void vt_update_static(void *); 166 #ifndef SC_NO_CUTPASTE 167 static void vt_mouse_paste(void); 168 #endif 169 170 SET_DECLARE(vt_drv_set, struct vt_driver); 171 172 #define _VTDEFH MAX(100, PIXEL_HEIGHT(VT_FB_DEFAULT_HEIGHT)) 173 #define _VTDEFW MAX(200, PIXEL_WIDTH(VT_FB_DEFAULT_WIDTH)) 174 175 static struct terminal vt_consterm; 176 static struct vt_window vt_conswindow; 177 static struct vt_device vt_consdev = { 178 .vd_driver = NULL, 179 .vd_softc = NULL, 180 .vd_flags = VDF_INVALID, 181 .vd_windows = { [VT_CONSWINDOW] = &vt_conswindow, }, 182 .vd_curwindow = &vt_conswindow, 183 .vd_kbstate = 0, 184 185 #ifndef SC_NO_CUTPASTE 186 .vd_pastebuf = { 187 .vpb_buf = NULL, 188 .vpb_bufsz = 0, 189 .vpb_len = 0 190 }, 191 .vd_mcursor = &vt_default_mouse_pointer, 192 .vd_mcursor_fg = TC_WHITE, 193 .vd_mcursor_bg = TC_BLACK, 194 #endif 195 }; 196 static term_char_t vt_constextbuf[(_VTDEFW) * (VBF_DEFAULT_HISTORY_SIZE)]; 197 static term_char_t *vt_constextbufrows[VBF_DEFAULT_HISTORY_SIZE]; 198 static struct vt_window vt_conswindow = { 199 .vw_number = VT_CONSWINDOW, 200 .vw_flags = VWF_CONSOLE, 201 .vw_buf = { 202 .vb_buffer = &vt_constextbuf[0], 203 .vb_rows = &vt_constextbufrows[0], 204 .vb_history_size = VBF_DEFAULT_HISTORY_SIZE, 205 .vb_curroffset = 0, 206 .vb_roffset = 0, 207 .vb_flags = VBF_STATIC, 208 .vb_mark_start = {.tp_row = 0, .tp_col = 0,}, 209 .vb_mark_end = {.tp_row = 0, .tp_col = 0,}, 210 .vb_scr_size = { 211 .tp_row = _VTDEFH, 212 .tp_col = _VTDEFW, 213 }, 214 }, 215 .vw_device = &vt_consdev, 216 .vw_terminal = &vt_consterm, 217 .vw_kbdmode = K_XLATE, 218 .vw_grabbed = 0, 219 }; 220 static struct terminal vt_consterm = { 221 .tm_class = &vt_termclass, 222 .tm_softc = &vt_conswindow, 223 .tm_flags = TF_CONS, 224 }; 225 static struct consdev vt_consterm_consdev = { 226 .cn_ops = &termcn_cnops, 227 .cn_arg = &vt_consterm, 228 .cn_name = "ttyv0", 229 }; 230 231 /* Add to set of consoles. */ 232 DATA_SET(cons_set, vt_consterm_consdev); 233 234 /* 235 * Right after kmem is done to allow early drivers to use locking and allocate 236 * memory. 237 */ 238 SYSINIT(vt_update_static, SI_SUB_KMEM, SI_ORDER_ANY, vt_update_static, 239 &vt_consdev); 240 /* Delay until all devices attached, to not waste time. */ 241 SYSINIT(vt_early_cons, SI_SUB_INT_CONFIG_HOOKS, SI_ORDER_ANY, vt_upgrade, 242 &vt_consdev); 243 244 /* Initialize locks/mem depended members. */ 245 static void 246 vt_update_static(void *dummy) 247 { 248 249 if (!vty_enabled(VTY_VT)) 250 return; 251 if (main_vd->vd_driver != NULL) 252 printf("VT: running with driver \"%s\".\n", 253 main_vd->vd_driver->vd_name); 254 else 255 printf("VT: init without driver.\n"); 256 257 mtx_init(&main_vd->vd_lock, "vtdev", NULL, MTX_DEF); 258 cv_init(&main_vd->vd_winswitch, "vtwswt"); 259 } 260 261 static void 262 vt_schedule_flush(struct vt_device *vd, int ms) 263 { 264 265 if (ms <= 0) 266 /* Default to initial value. */ 267 ms = 1000 / VT_TIMERFREQ; 268 269 callout_schedule(&vd->vd_timer, hz / (1000 / ms)); 270 } 271 272 static void 273 vt_resume_flush_timer(struct vt_device *vd, int ms) 274 { 275 276 if (!(vd->vd_flags & VDF_ASYNC) || 277 !atomic_cmpset_int(&vd->vd_timer_armed, 0, 1)) 278 return; 279 280 vt_schedule_flush(vd, ms); 281 } 282 283 static void 284 vt_suspend_flush_timer(struct vt_device *vd) 285 { 286 287 if (!(vd->vd_flags & VDF_ASYNC) || 288 !atomic_cmpset_int(&vd->vd_timer_armed, 1, 0)) 289 return; 290 291 callout_drain(&vd->vd_timer); 292 } 293 294 static void 295 vt_switch_timer(void *arg) 296 { 297 298 vt_late_window_switch((struct vt_window *)arg); 299 } 300 301 static int 302 vt_save_kbd_mode(struct vt_window *vw, keyboard_t *kbd) 303 { 304 int mode, ret; 305 306 mode = 0; 307 ret = kbdd_ioctl(kbd, KDGKBMODE, (caddr_t)&mode); 308 if (ret == ENOIOCTL) 309 ret = ENODEV; 310 if (ret != 0) 311 return (ret); 312 313 vw->vw_kbdmode = mode; 314 315 return (0); 316 } 317 318 static int 319 vt_update_kbd_mode(struct vt_window *vw, keyboard_t *kbd) 320 { 321 int ret; 322 323 ret = kbdd_ioctl(kbd, KDSKBMODE, (caddr_t)&vw->vw_kbdmode); 324 if (ret == ENOIOCTL) 325 ret = ENODEV; 326 327 return (ret); 328 } 329 330 static int 331 vt_save_kbd_state(struct vt_window *vw, keyboard_t *kbd) 332 { 333 int state, ret; 334 335 state = 0; 336 ret = kbdd_ioctl(kbd, KDGKBSTATE, (caddr_t)&state); 337 if (ret == ENOIOCTL) 338 ret = ENODEV; 339 if (ret != 0) 340 return (ret); 341 342 vw->vw_kbdstate &= ~LOCK_MASK; 343 vw->vw_kbdstate |= state & LOCK_MASK; 344 345 return (0); 346 } 347 348 static int 349 vt_update_kbd_state(struct vt_window *vw, keyboard_t *kbd) 350 { 351 int state, ret; 352 353 state = vw->vw_kbdstate & LOCK_MASK; 354 ret = kbdd_ioctl(kbd, KDSKBSTATE, (caddr_t)&state); 355 if (ret == ENOIOCTL) 356 ret = ENODEV; 357 358 return (ret); 359 } 360 361 static int 362 vt_save_kbd_leds(struct vt_window *vw, keyboard_t *kbd) 363 { 364 int leds, ret; 365 366 leds = 0; 367 ret = kbdd_ioctl(kbd, KDGETLED, (caddr_t)&leds); 368 if (ret == ENOIOCTL) 369 ret = ENODEV; 370 if (ret != 0) 371 return (ret); 372 373 vw->vw_kbdstate &= ~LED_MASK; 374 vw->vw_kbdstate |= leds & LED_MASK; 375 376 return (0); 377 } 378 379 static int 380 vt_update_kbd_leds(struct vt_window *vw, keyboard_t *kbd) 381 { 382 int leds, ret; 383 384 leds = vw->vw_kbdstate & LED_MASK; 385 ret = kbdd_ioctl(kbd, KDSETLED, (caddr_t)&leds); 386 if (ret == ENOIOCTL) 387 ret = ENODEV; 388 389 return (ret); 390 } 391 392 static int 393 vt_window_preswitch(struct vt_window *vw, struct vt_window *curvw) 394 { 395 396 DPRINTF(40, "%s\n", __func__); 397 curvw->vw_switch_to = vw; 398 /* Set timer to allow switch in case when process hang. */ 399 callout_reset(&vw->vw_proc_dead_timer, hz * vt_deadtimer, 400 vt_switch_timer, (void *)vw); 401 /* Notify process about vt switch attempt. */ 402 DPRINTF(30, "%s: Notify process.\n", __func__); 403 signal_vt_rel(curvw); 404 405 return (0); 406 } 407 408 static int 409 vt_window_postswitch(struct vt_window *vw) 410 { 411 412 signal_vt_acq(vw); 413 return (0); 414 } 415 416 /* vt_late_window_switch will done VT switching for regular case. */ 417 static int 418 vt_late_window_switch(struct vt_window *vw) 419 { 420 int ret; 421 422 callout_stop(&vw->vw_proc_dead_timer); 423 424 ret = vt_window_switch(vw); 425 if (ret) 426 return (ret); 427 428 /* Notify owner process about terminal availability. */ 429 if (vw->vw_smode.mode == VT_PROCESS) { 430 ret = vt_window_postswitch(vw); 431 } 432 return (ret); 433 } 434 435 /* Switch window. */ 436 static int 437 vt_proc_window_switch(struct vt_window *vw) 438 { 439 struct vt_window *curvw; 440 struct vt_device *vd; 441 int ret; 442 443 vd = vw->vw_device; 444 curvw = vd->vd_curwindow; 445 446 if (curvw->vw_flags & VWF_VTYLOCK) 447 return (EBUSY); 448 449 /* Ask current process permission to switch away. */ 450 if (curvw->vw_smode.mode == VT_PROCESS) { 451 DPRINTF(30, "%s: VT_PROCESS ", __func__); 452 if (vt_proc_alive(curvw) == FALSE) { 453 DPRINTF(30, "Dead. Cleaning."); 454 /* Dead */ 455 } else { 456 DPRINTF(30, "%s: Signaling process.\n", __func__); 457 /* Alive, try to ask him. */ 458 ret = vt_window_preswitch(vw, curvw); 459 /* Wait for process answer or timeout. */ 460 return (ret); 461 } 462 DPRINTF(30, "\n"); 463 } 464 465 ret = vt_late_window_switch(vw); 466 return (ret); 467 } 468 469 /* Switch window ignoring process locking. */ 470 static int 471 vt_window_switch(struct vt_window *vw) 472 { 473 struct vt_device *vd = vw->vw_device; 474 struct vt_window *curvw = vd->vd_curwindow; 475 keyboard_t *kbd; 476 477 VT_LOCK(vd); 478 if (curvw == vw) { 479 /* Nothing to do. */ 480 VT_UNLOCK(vd); 481 return (0); 482 } 483 if (!(vw->vw_flags & (VWF_OPENED|VWF_CONSOLE))) { 484 VT_UNLOCK(vd); 485 return (EINVAL); 486 } 487 488 vt_suspend_flush_timer(vd); 489 490 vd->vd_curwindow = vw; 491 vd->vd_flags |= VDF_INVALID; 492 cv_broadcast(&vd->vd_winswitch); 493 VT_UNLOCK(vd); 494 495 if (vd->vd_driver->vd_postswitch) 496 vd->vd_driver->vd_postswitch(vd); 497 498 vt_resume_flush_timer(vd, 0); 499 500 /* Restore per-window keyboard mode. */ 501 mtx_lock(&Giant); 502 kbd = kbd_get_keyboard(vd->vd_keyboard); 503 if (kbd != NULL) { 504 if (curvw->vw_kbdmode == K_XLATE) 505 vt_save_kbd_state(curvw, kbd); 506 507 vt_update_kbd_mode(vw, kbd); 508 vt_update_kbd_state(vw, kbd); 509 } 510 mtx_unlock(&Giant); 511 DPRINTF(10, "%s(ttyv%d) done\n", __func__, vw->vw_number); 512 513 return (0); 514 } 515 516 static inline void 517 vt_termsize(struct vt_device *vd, struct vt_font *vf, term_pos_t *size) 518 { 519 520 size->tp_row = vd->vd_height; 521 size->tp_col = vd->vd_width; 522 if (vf != NULL) { 523 size->tp_row /= vf->vf_height; 524 size->tp_col /= vf->vf_width; 525 } 526 } 527 528 static inline void 529 vt_winsize(struct vt_device *vd, struct vt_font *vf, struct winsize *size) 530 { 531 532 size->ws_row = size->ws_ypixel = vd->vd_height; 533 size->ws_col = size->ws_xpixel = vd->vd_width; 534 if (vf != NULL) { 535 size->ws_row /= vf->vf_height; 536 size->ws_col /= vf->vf_width; 537 } 538 } 539 540 static inline void 541 vt_compute_drawable_area(struct vt_window *vw) 542 { 543 struct vt_device *vd; 544 struct vt_font *vf; 545 546 vd = vw->vw_device; 547 548 if (vw->vw_font == NULL) { 549 vw->vw_draw_area.tr_begin.tp_col = 0; 550 vw->vw_draw_area.tr_begin.tp_row = 0; 551 vw->vw_draw_area.tr_end.tp_col = vd->vd_width; 552 vw->vw_draw_area.tr_end.tp_row = vd->vd_height; 553 return; 554 } 555 556 vf = vw->vw_font; 557 558 /* 559 * Compute the drawable area, so that the text is centered on 560 * the screen. 561 */ 562 563 vw->vw_draw_area.tr_begin.tp_col = (vd->vd_width % vf->vf_width) / 2; 564 vw->vw_draw_area.tr_begin.tp_row = (vd->vd_height % vf->vf_height) / 2; 565 vw->vw_draw_area.tr_end.tp_col = vw->vw_draw_area.tr_begin.tp_col + 566 vd->vd_width / vf->vf_width * vf->vf_width; 567 vw->vw_draw_area.tr_end.tp_row = vw->vw_draw_area.tr_begin.tp_row + 568 vd->vd_height / vf->vf_height * vf->vf_height; 569 } 570 571 static void 572 vt_scroll(struct vt_window *vw, int offset, int whence) 573 { 574 int diff; 575 term_pos_t size; 576 577 if ((vw->vw_flags & VWF_SCROLL) == 0) 578 return; 579 580 vt_termsize(vw->vw_device, vw->vw_font, &size); 581 582 diff = vthistory_seek(&vw->vw_buf, offset, whence); 583 if (diff) 584 vw->vw_device->vd_flags |= VDF_INVALID; 585 vt_resume_flush_timer(vw->vw_device, 0); 586 } 587 588 static int 589 vt_machine_kbdevent(int c) 590 { 591 592 switch (c) { 593 case SPCLKEY | DBG: /* kbdmap(5) keyword `debug`. */ 594 if (vt_kbd_debug) 595 kdb_enter(KDB_WHY_BREAK, "manual escape to debugger"); 596 return (1); 597 case SPCLKEY | HALT: /* kbdmap(5) keyword `halt`. */ 598 if (vt_kbd_halt) 599 shutdown_nice(RB_HALT); 600 return (1); 601 case SPCLKEY | PASTE: /* kbdmap(5) keyword `paste`. */ 602 #ifndef SC_NO_CUTPASTE 603 /* Insert text from cut-paste buffer. */ 604 vt_mouse_paste(); 605 #endif 606 break; 607 case SPCLKEY | PDWN: /* kbdmap(5) keyword `pdwn`. */ 608 if (vt_kbd_poweroff) 609 shutdown_nice(RB_HALT|RB_POWEROFF); 610 return (1); 611 case SPCLKEY | PNC: /* kbdmap(5) keyword `panic`. */ 612 /* 613 * Request to immediate panic if sysctl 614 * kern.vt.enable_panic_key allow it. 615 */ 616 if (vt_kbd_panic) 617 panic("Forced by the panic key"); 618 return (1); 619 case SPCLKEY | RBT: /* kbdmap(5) keyword `boot`. */ 620 if (vt_kbd_reboot) 621 shutdown_nice(RB_AUTOBOOT); 622 return (1); 623 case SPCLKEY | SPSC: /* kbdmap(5) keyword `spsc`. */ 624 /* Force activatation/deactivation of the screen saver. */ 625 /* TODO */ 626 return (1); 627 case SPCLKEY | STBY: /* XXX Not present in kbdcontrol parser. */ 628 /* Put machine into Stand-By mode. */ 629 power_pm_suspend(POWER_SLEEP_STATE_STANDBY); 630 return (1); 631 case SPCLKEY | SUSP: /* kbdmap(5) keyword `susp`. */ 632 /* Suspend machine. */ 633 power_pm_suspend(POWER_SLEEP_STATE_SUSPEND); 634 return (1); 635 }; 636 637 return (0); 638 } 639 640 static void 641 vt_scrollmode_kbdevent(struct vt_window *vw, int c, int console) 642 { 643 struct vt_device *vd; 644 term_pos_t size; 645 646 vd = vw->vw_device; 647 /* Only special keys handled in ScrollLock mode */ 648 if ((c & SPCLKEY) == 0) 649 return; 650 651 c &= ~SPCLKEY; 652 653 if (console == 0) { 654 if (c >= F_SCR && c <= MIN(L_SCR, F_SCR + VT_MAXWINDOWS - 1)) { 655 vw = vd->vd_windows[c - F_SCR]; 656 if (vw != NULL) 657 vt_proc_window_switch(vw); 658 return; 659 } 660 VT_LOCK(vd); 661 } 662 663 switch (c) { 664 case SLK: { 665 /* Turn scrolling off. */ 666 vt_scroll(vw, 0, VHS_END); 667 VTBUF_SLCK_DISABLE(&vw->vw_buf); 668 vw->vw_flags &= ~VWF_SCROLL; 669 break; 670 } 671 case FKEY | F(49): /* Home key. */ 672 vt_scroll(vw, 0, VHS_SET); 673 break; 674 case FKEY | F(50): /* Arrow up. */ 675 vt_scroll(vw, -1, VHS_CUR); 676 break; 677 case FKEY | F(51): /* Page up. */ 678 vt_termsize(vd, vw->vw_font, &size); 679 vt_scroll(vw, -size.tp_row, VHS_CUR); 680 break; 681 case FKEY | F(57): /* End key. */ 682 vt_scroll(vw, 0, VHS_END); 683 break; 684 case FKEY | F(58): /* Arrow down. */ 685 vt_scroll(vw, 1, VHS_CUR); 686 break; 687 case FKEY | F(59): /* Page down. */ 688 vt_termsize(vd, vw->vw_font, &size); 689 vt_scroll(vw, size.tp_row, VHS_CUR); 690 break; 691 } 692 693 if (console == 0) 694 VT_UNLOCK(vd); 695 } 696 697 static int 698 vt_processkey(keyboard_t *kbd, struct vt_device *vd, int c) 699 { 700 struct vt_window *vw = vd->vd_curwindow; 701 702 #if VT_ALT_TO_ESC_HACK 703 if (c & RELKEY) { 704 switch (c & ~RELKEY) { 705 case (SPCLKEY | RALT): 706 if (vt_enable_altgr != 0) 707 break; 708 case (SPCLKEY | LALT): 709 vd->vd_kbstate &= ~ALKED; 710 } 711 /* Other keys ignored for RELKEY event. */ 712 return (0); 713 } else { 714 switch (c & ~RELKEY) { 715 case (SPCLKEY | RALT): 716 if (vt_enable_altgr != 0) 717 break; 718 case (SPCLKEY | LALT): 719 vd->vd_kbstate |= ALKED; 720 } 721 } 722 #else 723 if (c & RELKEY) 724 /* Other keys ignored for RELKEY event. */ 725 return (0); 726 #endif 727 728 if (vt_machine_kbdevent(c)) 729 return (0); 730 731 if (vw->vw_flags & VWF_SCROLL) { 732 vt_scrollmode_kbdevent(vw, c, 0/* Not a console */); 733 /* Scroll mode keys handled, nothing to do more. */ 734 return (0); 735 } 736 737 if (c & SPCLKEY) { 738 c &= ~SPCLKEY; 739 740 if (c >= F_SCR && c <= MIN(L_SCR, F_SCR + VT_MAXWINDOWS - 1)) { 741 vw = vd->vd_windows[c - F_SCR]; 742 if (vw != NULL) 743 vt_proc_window_switch(vw); 744 return (0); 745 } 746 747 switch (c) { 748 case NEXT: 749 /* Switch to next VT. */ 750 c = (vw->vw_number + 1) % VT_MAXWINDOWS; 751 vw = vd->vd_windows[c]; 752 if (vw != NULL) 753 vt_proc_window_switch(vw); 754 return (0); 755 case PREV: 756 /* Switch to previous VT. */ 757 c = (vw->vw_number - 1) % VT_MAXWINDOWS; 758 vw = vd->vd_windows[c]; 759 if (vw != NULL) 760 vt_proc_window_switch(vw); 761 return (0); 762 case SLK: { 763 vt_save_kbd_state(vw, kbd); 764 VT_LOCK(vd); 765 if (vw->vw_kbdstate & SLKED) { 766 /* Turn scrolling on. */ 767 vw->vw_flags |= VWF_SCROLL; 768 VTBUF_SLCK_ENABLE(&vw->vw_buf); 769 } else { 770 /* Turn scrolling off. */ 771 vw->vw_flags &= ~VWF_SCROLL; 772 VTBUF_SLCK_DISABLE(&vw->vw_buf); 773 vt_scroll(vw, 0, VHS_END); 774 } 775 VT_UNLOCK(vd); 776 break; 777 } 778 case FKEY | F(1): case FKEY | F(2): case FKEY | F(3): 779 case FKEY | F(4): case FKEY | F(5): case FKEY | F(6): 780 case FKEY | F(7): case FKEY | F(8): case FKEY | F(9): 781 case FKEY | F(10): case FKEY | F(11): case FKEY | F(12): 782 /* F1 through F12 keys. */ 783 terminal_input_special(vw->vw_terminal, 784 TKEY_F1 + c - (FKEY | F(1))); 785 break; 786 case FKEY | F(49): /* Home key. */ 787 terminal_input_special(vw->vw_terminal, TKEY_HOME); 788 break; 789 case FKEY | F(50): /* Arrow up. */ 790 terminal_input_special(vw->vw_terminal, TKEY_UP); 791 break; 792 case FKEY | F(51): /* Page up. */ 793 terminal_input_special(vw->vw_terminal, TKEY_PAGE_UP); 794 break; 795 case FKEY | F(53): /* Arrow left. */ 796 terminal_input_special(vw->vw_terminal, TKEY_LEFT); 797 break; 798 case FKEY | F(55): /* Arrow right. */ 799 terminal_input_special(vw->vw_terminal, TKEY_RIGHT); 800 break; 801 case FKEY | F(57): /* End key. */ 802 terminal_input_special(vw->vw_terminal, TKEY_END); 803 break; 804 case FKEY | F(58): /* Arrow down. */ 805 terminal_input_special(vw->vw_terminal, TKEY_DOWN); 806 break; 807 case FKEY | F(59): /* Page down. */ 808 terminal_input_special(vw->vw_terminal, TKEY_PAGE_DOWN); 809 break; 810 case FKEY | F(60): /* Insert key. */ 811 terminal_input_special(vw->vw_terminal, TKEY_INSERT); 812 break; 813 case FKEY | F(61): /* Delete key. */ 814 terminal_input_special(vw->vw_terminal, TKEY_DELETE); 815 break; 816 } 817 } else if (KEYFLAGS(c) == 0) { 818 /* Don't do UTF-8 conversion when doing raw mode. */ 819 if (vw->vw_kbdmode == K_XLATE) { 820 #if VT_ALT_TO_ESC_HACK 821 if (vd->vd_kbstate & ALKED) { 822 /* 823 * Prepend ESC sequence if one of ALT keys down. 824 */ 825 terminal_input_char(vw->vw_terminal, 0x1b); 826 } 827 #endif 828 829 terminal_input_char(vw->vw_terminal, KEYCHAR(c)); 830 } else 831 terminal_input_raw(vw->vw_terminal, c); 832 } 833 return (0); 834 } 835 836 static int 837 vt_kbdevent(keyboard_t *kbd, int event, void *arg) 838 { 839 struct vt_device *vd = arg; 840 int c; 841 842 switch (event) { 843 case KBDIO_KEYINPUT: 844 break; 845 case KBDIO_UNLOADING: 846 mtx_lock(&Giant); 847 vd->vd_keyboard = -1; 848 kbd_release(kbd, (void *)vd); 849 mtx_unlock(&Giant); 850 return (0); 851 default: 852 return (EINVAL); 853 } 854 855 while ((c = kbdd_read_char(kbd, 0)) != NOKEY) 856 vt_processkey(kbd, vd, c); 857 858 return (0); 859 } 860 861 static int 862 vt_allocate_keyboard(struct vt_device *vd) 863 { 864 int idx0, idx; 865 keyboard_t *k0, *k; 866 keyboard_info_t ki; 867 868 idx0 = kbd_allocate("kbdmux", -1, vd, vt_kbdevent, vd); 869 if (idx0 >= 0) { 870 DPRINTF(20, "%s: kbdmux allocated, idx = %d\n", __func__, idx0); 871 k0 = kbd_get_keyboard(idx0); 872 873 for (idx = kbd_find_keyboard2("*", -1, 0); 874 idx != -1; 875 idx = kbd_find_keyboard2("*", -1, idx + 1)) { 876 k = kbd_get_keyboard(idx); 877 878 if (idx == idx0 || KBD_IS_BUSY(k)) 879 continue; 880 881 bzero(&ki, sizeof(ki)); 882 strncpy(ki.kb_name, k->kb_name, sizeof(ki.kb_name)); 883 ki.kb_name[sizeof(ki.kb_name) - 1] = '\0'; 884 ki.kb_unit = k->kb_unit; 885 886 kbdd_ioctl(k0, KBADDKBD, (caddr_t) &ki); 887 } 888 } else { 889 DPRINTF(20, "%s: no kbdmux allocated\n", __func__); 890 idx0 = kbd_allocate("*", -1, vd, vt_kbdevent, vd); 891 if (idx0 < 0) { 892 DPRINTF(10, "%s: No keyboard found.\n", __func__); 893 return (-1); 894 } 895 } 896 vd->vd_keyboard = idx0; 897 DPRINTF(20, "%s: vd_keyboard = %d\n", __func__, vd->vd_keyboard); 898 899 return (idx0); 900 } 901 902 static void 903 vtterm_bell(struct terminal *tm) 904 { 905 struct vt_window *vw = tm->tm_softc; 906 struct vt_device *vd = vw->vw_device; 907 908 if (!vt_enable_bell) 909 return; 910 911 if (vd->vd_flags & VDF_QUIET_BELL) 912 return; 913 914 sysbeep(1193182 / VT_BELLPITCH, VT_BELLDURATION); 915 } 916 917 static void 918 vtterm_beep(struct terminal *tm, u_int param) 919 { 920 u_int freq, period; 921 922 if (!vt_enable_bell) 923 return; 924 925 if ((param == 0) || ((param & 0xffff) == 0)) { 926 vtterm_bell(tm); 927 return; 928 } 929 930 period = ((param >> 16) & 0xffff) * hz / 1000; 931 freq = 1193182 / (param & 0xffff); 932 933 sysbeep(freq, period); 934 } 935 936 static void 937 vtterm_cursor(struct terminal *tm, const term_pos_t *p) 938 { 939 struct vt_window *vw = tm->tm_softc; 940 941 vtbuf_cursor_position(&vw->vw_buf, p); 942 vt_resume_flush_timer(vw->vw_device, 0); 943 } 944 945 static void 946 vtterm_putchar(struct terminal *tm, const term_pos_t *p, term_char_t c) 947 { 948 struct vt_window *vw = tm->tm_softc; 949 950 vtbuf_putchar(&vw->vw_buf, p, c); 951 vt_resume_flush_timer(vw->vw_device, 0); 952 } 953 954 static void 955 vtterm_fill(struct terminal *tm, const term_rect_t *r, term_char_t c) 956 { 957 struct vt_window *vw = tm->tm_softc; 958 959 vtbuf_fill_locked(&vw->vw_buf, r, c); 960 vt_resume_flush_timer(vw->vw_device, 0); 961 } 962 963 static void 964 vtterm_copy(struct terminal *tm, const term_rect_t *r, 965 const term_pos_t *p) 966 { 967 struct vt_window *vw = tm->tm_softc; 968 969 vtbuf_copy(&vw->vw_buf, r, p); 970 vt_resume_flush_timer(vw->vw_device, 0); 971 } 972 973 static void 974 vtterm_param(struct terminal *tm, int cmd, unsigned int arg) 975 { 976 struct vt_window *vw = tm->tm_softc; 977 978 switch (cmd) { 979 case TP_SHOWCURSOR: 980 vtbuf_cursor_visibility(&vw->vw_buf, arg); 981 vt_resume_flush_timer(vw->vw_device, 0); 982 break; 983 case TP_MOUSE: 984 vw->vw_mouse_level = arg; 985 break; 986 } 987 } 988 989 void 990 vt_determine_colors(term_char_t c, int cursor, 991 term_color_t *fg, term_color_t *bg) 992 { 993 term_color_t tmp; 994 int invert; 995 996 invert = 0; 997 998 *fg = TCHAR_FGCOLOR(c); 999 if (TCHAR_FORMAT(c) & TF_BOLD) 1000 *fg = TCOLOR_LIGHT(*fg); 1001 *bg = TCHAR_BGCOLOR(c); 1002 1003 if (TCHAR_FORMAT(c) & TF_REVERSE) 1004 invert ^= 1; 1005 if (cursor) 1006 invert ^= 1; 1007 1008 if (invert) { 1009 tmp = *fg; 1010 *fg = *bg; 1011 *bg = tmp; 1012 } 1013 } 1014 1015 #ifndef SC_NO_CUTPASTE 1016 int 1017 vt_is_cursor_in_area(const struct vt_device *vd, const term_rect_t *area) 1018 { 1019 unsigned int mx, my, x1, y1, x2, y2; 1020 1021 /* 1022 * We use the cursor position saved during the current refresh, 1023 * in case the cursor moved since. 1024 */ 1025 mx = vd->vd_mx_drawn + vd->vd_curwindow->vw_draw_area.tr_begin.tp_col; 1026 my = vd->vd_my_drawn + vd->vd_curwindow->vw_draw_area.tr_begin.tp_row; 1027 1028 x1 = area->tr_begin.tp_col; 1029 y1 = area->tr_begin.tp_row; 1030 x2 = area->tr_end.tp_col; 1031 y2 = area->tr_end.tp_row; 1032 1033 if (((mx >= x1 && x2 - 1 >= mx) || 1034 (mx < x1 && mx + vd->vd_mcursor->width >= x1)) && 1035 ((my >= y1 && y2 - 1 >= my) || 1036 (my < y1 && my + vd->vd_mcursor->height >= y1))) 1037 return (1); 1038 1039 return (0); 1040 } 1041 1042 static void 1043 vt_mark_mouse_position_as_dirty(struct vt_device *vd) 1044 { 1045 term_rect_t area; 1046 struct vt_window *vw; 1047 struct vt_font *vf; 1048 int x, y; 1049 1050 vw = vd->vd_curwindow; 1051 vf = vw->vw_font; 1052 1053 x = vd->vd_mx_drawn; 1054 y = vd->vd_my_drawn; 1055 1056 if (vf != NULL) { 1057 area.tr_begin.tp_col = x / vf->vf_width; 1058 area.tr_begin.tp_row = y / vf->vf_height; 1059 area.tr_end.tp_col = 1060 ((x + vd->vd_mcursor->width) / vf->vf_width) + 1; 1061 area.tr_end.tp_row = 1062 ((y + vd->vd_mcursor->height) / vf->vf_height) + 1; 1063 } else { 1064 /* 1065 * No font loaded (ie. vt_vga operating in textmode). 1066 * 1067 * FIXME: This fake area needs to be revisited once the 1068 * mouse cursor is supported in vt_vga's textmode. 1069 */ 1070 area.tr_begin.tp_col = x; 1071 area.tr_begin.tp_row = y; 1072 area.tr_end.tp_col = x + 2; 1073 area.tr_end.tp_row = y + 2; 1074 } 1075 1076 vtbuf_dirty(&vw->vw_buf, &area); 1077 } 1078 #endif 1079 1080 static int 1081 vt_flush(struct vt_device *vd) 1082 { 1083 struct vt_window *vw; 1084 struct vt_font *vf; 1085 term_rect_t tarea; 1086 term_pos_t size; 1087 #ifndef SC_NO_CUTPASTE 1088 int cursor_was_shown, cursor_moved; 1089 #endif 1090 1091 vw = vd->vd_curwindow; 1092 if (vw == NULL) 1093 return (0); 1094 1095 if (vd->vd_flags & VDF_SPLASH || vw->vw_flags & VWF_BUSY) 1096 return (0); 1097 1098 vf = vw->vw_font; 1099 if (((vd->vd_flags & VDF_TEXTMODE) == 0) && (vf == NULL)) 1100 return (0); 1101 1102 #ifndef SC_NO_CUTPASTE 1103 cursor_was_shown = vd->vd_mshown; 1104 cursor_moved = (vd->vd_mx != vd->vd_mx_drawn || 1105 vd->vd_my != vd->vd_my_drawn); 1106 1107 /* Check if the cursor should be displayed or not. */ 1108 if ((vd->vd_flags & VDF_MOUSECURSOR) && /* Mouse support enabled. */ 1109 !(vw->vw_flags & VWF_MOUSE_HIDE) && /* Cursor displayed. */ 1110 !kdb_active && panicstr == NULL) { /* DDB inactive. */ 1111 vd->vd_mshown = 1; 1112 } else { 1113 vd->vd_mshown = 0; 1114 } 1115 1116 /* 1117 * If the cursor changed display state or moved, we must mark 1118 * the old position as dirty, so that it's erased. 1119 */ 1120 if (cursor_was_shown != vd->vd_mshown || 1121 (vd->vd_mshown && cursor_moved)) 1122 vt_mark_mouse_position_as_dirty(vd); 1123 1124 /* 1125 * Save position of the mouse cursor. It's used by backends to 1126 * know where to draw the cursor and during the next refresh to 1127 * erase the previous position. 1128 */ 1129 vd->vd_mx_drawn = vd->vd_mx; 1130 vd->vd_my_drawn = vd->vd_my; 1131 1132 /* 1133 * If the cursor is displayed and has moved since last refresh, 1134 * mark the new position as dirty. 1135 */ 1136 if (vd->vd_mshown && cursor_moved) 1137 vt_mark_mouse_position_as_dirty(vd); 1138 #endif 1139 1140 vtbuf_undirty(&vw->vw_buf, &tarea); 1141 vt_termsize(vd, vf, &size); 1142 1143 /* Force a full redraw when the screen contents are invalid. */ 1144 if (vd->vd_flags & VDF_INVALID) { 1145 tarea.tr_begin.tp_row = tarea.tr_begin.tp_col = 0; 1146 tarea.tr_end = size; 1147 1148 vd->vd_flags &= ~VDF_INVALID; 1149 } 1150 1151 if (tarea.tr_begin.tp_col < tarea.tr_end.tp_col) { 1152 vd->vd_driver->vd_bitblt_text(vd, vw, &tarea); 1153 return (1); 1154 } 1155 1156 return (0); 1157 } 1158 1159 static void 1160 vt_timer(void *arg) 1161 { 1162 struct vt_device *vd; 1163 int changed; 1164 1165 vd = arg; 1166 /* Update screen if required. */ 1167 changed = vt_flush(vd); 1168 1169 /* Schedule for next update. */ 1170 if (changed) 1171 vt_schedule_flush(vd, 0); 1172 else 1173 vd->vd_timer_armed = 0; 1174 } 1175 1176 static void 1177 vtterm_done(struct terminal *tm) 1178 { 1179 struct vt_window *vw = tm->tm_softc; 1180 struct vt_device *vd = vw->vw_device; 1181 1182 if (kdb_active || panicstr != NULL) { 1183 /* Switch to the debugger. */ 1184 if (vd->vd_curwindow != vw) { 1185 vd->vd_curwindow = vw; 1186 vd->vd_flags |= VDF_INVALID; 1187 if (vd->vd_driver->vd_postswitch) 1188 vd->vd_driver->vd_postswitch(vd); 1189 } 1190 vd->vd_flags &= ~VDF_SPLASH; 1191 vt_flush(vd); 1192 } else if (!(vd->vd_flags & VDF_ASYNC)) { 1193 vt_flush(vd); 1194 } 1195 } 1196 1197 #ifdef DEV_SPLASH 1198 static void 1199 vtterm_splash(struct vt_device *vd) 1200 { 1201 vt_axis_t top, left; 1202 1203 /* Display a nice boot splash. */ 1204 if (!(vd->vd_flags & VDF_TEXTMODE) && (boothowto & RB_MUTE)) { 1205 1206 top = (vd->vd_height - vt_logo_height) / 2; 1207 left = (vd->vd_width - vt_logo_width) / 2; 1208 switch (vt_logo_depth) { 1209 case 1: 1210 /* XXX: Unhardcode colors! */ 1211 vd->vd_driver->vd_bitblt_bmp(vd, vd->vd_curwindow, 1212 vt_logo_image, NULL, vt_logo_width, vt_logo_height, 1213 left, top, TC_WHITE, TC_BLACK); 1214 } 1215 vd->vd_flags |= VDF_SPLASH; 1216 } 1217 } 1218 #endif 1219 1220 1221 static void 1222 vtterm_cnprobe(struct terminal *tm, struct consdev *cp) 1223 { 1224 struct vt_driver *vtd, **vtdlist, *vtdbest = NULL; 1225 struct vt_window *vw = tm->tm_softc; 1226 struct vt_device *vd = vw->vw_device; 1227 struct winsize wsz; 1228 term_attr_t attr; 1229 term_char_t c; 1230 1231 if (!vty_enabled(VTY_VT)) 1232 return; 1233 1234 if (vd->vd_flags & VDF_INITIALIZED) 1235 /* Initialization already done. */ 1236 return; 1237 1238 SET_FOREACH(vtdlist, vt_drv_set) { 1239 vtd = *vtdlist; 1240 if (vtd->vd_probe == NULL) 1241 continue; 1242 if (vtd->vd_probe(vd) == CN_DEAD) 1243 continue; 1244 if ((vtdbest == NULL) || 1245 (vtd->vd_priority > vtdbest->vd_priority)) 1246 vtdbest = vtd; 1247 } 1248 if (vtdbest == NULL) { 1249 cp->cn_pri = CN_DEAD; 1250 vd->vd_flags |= VDF_DEAD; 1251 } else { 1252 vd->vd_driver = vtdbest; 1253 cp->cn_pri = vd->vd_driver->vd_init(vd); 1254 } 1255 1256 /* Check if driver's vt_init return CN_DEAD. */ 1257 if (cp->cn_pri == CN_DEAD) { 1258 vd->vd_flags |= VDF_DEAD; 1259 } 1260 1261 /* Initialize any early-boot keyboard drivers */ 1262 kbd_configure(KB_CONF_PROBE_ONLY); 1263 1264 vd->vd_unit = atomic_fetchadd_int(&vt_unit, 1); 1265 vd->vd_windows[VT_CONSWINDOW] = vw; 1266 sprintf(cp->cn_name, "ttyv%r", VT_UNIT(vw)); 1267 1268 /* Attach default font if not in TEXTMODE. */ 1269 if ((vd->vd_flags & VDF_TEXTMODE) == 0) { 1270 vw->vw_font = vtfont_ref(&vt_font_default); 1271 vt_compute_drawable_area(vw); 1272 } 1273 1274 /* 1275 * The original screen size was faked (_VTDEFW x _VTDEFH). Now 1276 * that we have the real viewable size, fix it in the static 1277 * buffer. 1278 */ 1279 if (vd->vd_width != 0 && vd->vd_height != 0) 1280 vt_termsize(vd, vw->vw_font, &vw->vw_buf.vb_scr_size); 1281 1282 vtbuf_init_early(&vw->vw_buf); 1283 vt_winsize(vd, vw->vw_font, &wsz); 1284 c = (boothowto & RB_MUTE) == 0 ? TERMINAL_KERN_ATTR : 1285 TERMINAL_NORM_ATTR; 1286 attr.ta_format = TCHAR_FORMAT(c); 1287 attr.ta_fgcolor = TCHAR_FGCOLOR(c); 1288 attr.ta_bgcolor = TCHAR_BGCOLOR(c); 1289 terminal_set_winsize_blank(tm, &wsz, 1, &attr); 1290 1291 if (vtdbest != NULL) { 1292 #ifdef DEV_SPLASH 1293 vtterm_splash(vd); 1294 #endif 1295 vd->vd_flags |= VDF_INITIALIZED; 1296 } 1297 } 1298 1299 static int 1300 vtterm_cngetc(struct terminal *tm) 1301 { 1302 struct vt_window *vw = tm->tm_softc; 1303 struct vt_device *vd = vw->vw_device; 1304 keyboard_t *kbd; 1305 u_int c; 1306 1307 if (vw->vw_kbdsq && *vw->vw_kbdsq) 1308 return (*vw->vw_kbdsq++); 1309 1310 /* Make sure the splash screen is not there. */ 1311 if (vd->vd_flags & VDF_SPLASH) { 1312 /* Remove splash */ 1313 vd->vd_flags &= ~VDF_SPLASH; 1314 /* Mark screen as invalid to force update */ 1315 vd->vd_flags |= VDF_INVALID; 1316 vt_flush(vd); 1317 } 1318 1319 /* Stripped down keyboard handler. */ 1320 kbd = kbd_get_keyboard(vd->vd_keyboard); 1321 if (kbd == NULL) 1322 return (-1); 1323 1324 /* Force keyboard input mode to K_XLATE */ 1325 vw->vw_kbdmode = K_XLATE; 1326 vt_update_kbd_mode(vw, kbd); 1327 1328 /* Switch the keyboard to polling to make it work here. */ 1329 kbdd_poll(kbd, TRUE); 1330 c = kbdd_read_char(kbd, 0); 1331 kbdd_poll(kbd, FALSE); 1332 if (c & RELKEY) 1333 return (-1); 1334 1335 if (vw->vw_flags & VWF_SCROLL) { 1336 vt_scrollmode_kbdevent(vw, c, 1/* Console mode */); 1337 vt_flush(vd); 1338 return (-1); 1339 } 1340 1341 /* Stripped down handling of vt_kbdevent(), without locking, etc. */ 1342 if (c & SPCLKEY) { 1343 switch (c) { 1344 case SPCLKEY | SLK: 1345 vt_save_kbd_state(vw, kbd); 1346 if (vw->vw_kbdstate & SLKED) { 1347 /* Turn scrolling on. */ 1348 vw->vw_flags |= VWF_SCROLL; 1349 VTBUF_SLCK_ENABLE(&vw->vw_buf); 1350 } else { 1351 /* Turn scrolling off. */ 1352 vt_scroll(vw, 0, VHS_END); 1353 vw->vw_flags &= ~VWF_SCROLL; 1354 VTBUF_SLCK_DISABLE(&vw->vw_buf); 1355 } 1356 break; 1357 /* XXX: KDB can handle history. */ 1358 case SPCLKEY | FKEY | F(50): /* Arrow up. */ 1359 vw->vw_kbdsq = "\x1b[A"; 1360 break; 1361 case SPCLKEY | FKEY | F(58): /* Arrow down. */ 1362 vw->vw_kbdsq = "\x1b[B"; 1363 break; 1364 case SPCLKEY | FKEY | F(55): /* Arrow right. */ 1365 vw->vw_kbdsq = "\x1b[C"; 1366 break; 1367 case SPCLKEY | FKEY | F(53): /* Arrow left. */ 1368 vw->vw_kbdsq = "\x1b[D"; 1369 break; 1370 } 1371 1372 /* Force refresh to make scrollback work. */ 1373 vt_flush(vd); 1374 } else if (KEYFLAGS(c) == 0) { 1375 return (KEYCHAR(c)); 1376 } 1377 1378 if (vw->vw_kbdsq && *vw->vw_kbdsq) 1379 return (*vw->vw_kbdsq++); 1380 1381 return (-1); 1382 } 1383 1384 static void 1385 vtterm_cngrab(struct terminal *tm) 1386 { 1387 struct vt_device *vd; 1388 struct vt_window *vw; 1389 keyboard_t *kbd; 1390 1391 vw = tm->tm_softc; 1392 vd = vw->vw_device; 1393 1394 if (!cold) 1395 vt_window_switch(vw); 1396 1397 kbd = kbd_get_keyboard(vd->vd_keyboard); 1398 if (kbd == NULL) 1399 return; 1400 1401 if (vw->vw_grabbed++ > 0) 1402 return; 1403 1404 /* 1405 * Make sure the keyboard is accessible even when the kbd device 1406 * driver is disabled. 1407 */ 1408 kbdd_enable(kbd); 1409 1410 /* We shall always use the keyboard in the XLATE mode here. */ 1411 vw->vw_prev_kbdmode = vw->vw_kbdmode; 1412 vw->vw_kbdmode = K_XLATE; 1413 vt_update_kbd_mode(vw, kbd); 1414 1415 kbdd_poll(kbd, TRUE); 1416 } 1417 1418 static void 1419 vtterm_cnungrab(struct terminal *tm) 1420 { 1421 struct vt_device *vd; 1422 struct vt_window *vw; 1423 keyboard_t *kbd; 1424 1425 vw = tm->tm_softc; 1426 vd = vw->vw_device; 1427 1428 kbd = kbd_get_keyboard(vd->vd_keyboard); 1429 if (kbd == NULL) 1430 return; 1431 1432 if (--vw->vw_grabbed > 0) 1433 return; 1434 1435 kbdd_poll(kbd, FALSE); 1436 1437 vw->vw_kbdmode = vw->vw_prev_kbdmode; 1438 vt_update_kbd_mode(vw, kbd); 1439 kbdd_disable(kbd); 1440 } 1441 1442 static void 1443 vtterm_opened(struct terminal *tm, int opened) 1444 { 1445 struct vt_window *vw = tm->tm_softc; 1446 struct vt_device *vd = vw->vw_device; 1447 1448 VT_LOCK(vd); 1449 vd->vd_flags &= ~VDF_SPLASH; 1450 if (opened) 1451 vw->vw_flags |= VWF_OPENED; 1452 else { 1453 vw->vw_flags &= ~VWF_OPENED; 1454 /* TODO: finish ACQ/REL */ 1455 } 1456 VT_UNLOCK(vd); 1457 } 1458 1459 static int 1460 vt_set_border(struct vt_window *vw, term_color_t c) 1461 { 1462 struct vt_device *vd = vw->vw_device; 1463 1464 if (vd->vd_driver->vd_drawrect == NULL) 1465 return (ENOTSUP); 1466 1467 /* Top bar. */ 1468 if (vw->vw_draw_area.tr_begin.tp_row > 0) 1469 vd->vd_driver->vd_drawrect(vd, 1470 0, 0, 1471 vd->vd_width - 1, vw->vw_draw_area.tr_begin.tp_row - 1, 1472 1, c); 1473 1474 /* Left bar. */ 1475 if (vw->vw_draw_area.tr_begin.tp_col > 0) 1476 vd->vd_driver->vd_drawrect(vd, 1477 0, 0, 1478 vw->vw_draw_area.tr_begin.tp_col - 1, vd->vd_height - 1, 1479 1, c); 1480 1481 /* Right bar. */ 1482 if (vw->vw_draw_area.tr_end.tp_col < vd->vd_width) 1483 vd->vd_driver->vd_drawrect(vd, 1484 vw->vw_draw_area.tr_end.tp_col - 1, 0, 1485 vd->vd_width - 1, vd->vd_height - 1, 1486 1, c); 1487 1488 /* Bottom bar. */ 1489 if (vw->vw_draw_area.tr_end.tp_row < vd->vd_height) 1490 vd->vd_driver->vd_drawrect(vd, 1491 0, vw->vw_draw_area.tr_end.tp_row - 1, 1492 vd->vd_width - 1, vd->vd_height - 1, 1493 1, c); 1494 1495 return (0); 1496 } 1497 1498 static int 1499 vt_change_font(struct vt_window *vw, struct vt_font *vf) 1500 { 1501 struct vt_device *vd = vw->vw_device; 1502 struct terminal *tm = vw->vw_terminal; 1503 term_pos_t size; 1504 struct winsize wsz; 1505 1506 /* 1507 * Changing fonts. 1508 * 1509 * Changing fonts is a little tricky. We must prevent 1510 * simultaneous access to the device, so we must stop 1511 * the display timer and the terminal from accessing. 1512 * We need to switch fonts and grow our screen buffer. 1513 * 1514 * XXX: Right now the code uses terminal_mute() to 1515 * prevent data from reaching the console driver while 1516 * resizing the screen buffer. This isn't elegant... 1517 */ 1518 1519 VT_LOCK(vd); 1520 if (vw->vw_flags & VWF_BUSY) { 1521 /* Another process is changing the font. */ 1522 VT_UNLOCK(vd); 1523 return (EBUSY); 1524 } 1525 vw->vw_flags |= VWF_BUSY; 1526 VT_UNLOCK(vd); 1527 1528 vt_termsize(vd, vf, &size); 1529 vt_winsize(vd, vf, &wsz); 1530 1531 /* Grow the screen buffer and terminal. */ 1532 terminal_mute(tm, 1); 1533 vtbuf_grow(&vw->vw_buf, &size, vw->vw_buf.vb_history_size); 1534 terminal_set_winsize_blank(tm, &wsz, 0, NULL); 1535 terminal_set_cursor(tm, &vw->vw_buf.vb_cursor); 1536 terminal_mute(tm, 0); 1537 1538 /* Actually apply the font to the current window. */ 1539 VT_LOCK(vd); 1540 if (vw->vw_font != vf && vw->vw_font != NULL && vf != NULL) { 1541 /* 1542 * In case vt_change_font called to update size we don't need 1543 * to update font link. 1544 */ 1545 vtfont_unref(vw->vw_font); 1546 vw->vw_font = vtfont_ref(vf); 1547 } 1548 1549 /* 1550 * Compute the drawable area and move the mouse cursor inside 1551 * it, in case the new area is smaller than the previous one. 1552 */ 1553 vt_compute_drawable_area(vw); 1554 vd->vd_mx = min(vd->vd_mx, 1555 vw->vw_draw_area.tr_end.tp_col - 1556 vw->vw_draw_area.tr_begin.tp_col - 1); 1557 vd->vd_my = min(vd->vd_my, 1558 vw->vw_draw_area.tr_end.tp_row - 1559 vw->vw_draw_area.tr_begin.tp_row - 1); 1560 1561 /* Force a full redraw the next timer tick. */ 1562 if (vd->vd_curwindow == vw) { 1563 vt_set_border(vw, TC_BLACK); 1564 vd->vd_flags |= VDF_INVALID; 1565 vt_resume_flush_timer(vw->vw_device, 0); 1566 } 1567 vw->vw_flags &= ~VWF_BUSY; 1568 VT_UNLOCK(vd); 1569 return (0); 1570 } 1571 1572 static int 1573 vt_proc_alive(struct vt_window *vw) 1574 { 1575 struct proc *p; 1576 1577 if (vw->vw_smode.mode != VT_PROCESS) 1578 return (FALSE); 1579 1580 if (vw->vw_proc) { 1581 if ((p = pfind(vw->vw_pid)) != NULL) 1582 PROC_UNLOCK(p); 1583 if (vw->vw_proc == p) 1584 return (TRUE); 1585 vw->vw_proc = NULL; 1586 vw->vw_smode.mode = VT_AUTO; 1587 DPRINTF(1, "vt controlling process %d died\n", vw->vw_pid); 1588 vw->vw_pid = 0; 1589 } 1590 return (FALSE); 1591 } 1592 1593 static int 1594 signal_vt_rel(struct vt_window *vw) 1595 { 1596 1597 if (vw->vw_smode.mode != VT_PROCESS) 1598 return (FALSE); 1599 if (vw->vw_proc == NULL || vt_proc_alive(vw) == FALSE) { 1600 vw->vw_proc = NULL; 1601 vw->vw_pid = 0; 1602 return (TRUE); 1603 } 1604 vw->vw_flags |= VWF_SWWAIT_REL; 1605 PROC_LOCK(vw->vw_proc); 1606 kern_psignal(vw->vw_proc, vw->vw_smode.relsig); 1607 PROC_UNLOCK(vw->vw_proc); 1608 DPRINTF(1, "sending relsig to %d\n", vw->vw_pid); 1609 return (TRUE); 1610 } 1611 1612 static int 1613 signal_vt_acq(struct vt_window *vw) 1614 { 1615 1616 if (vw->vw_smode.mode != VT_PROCESS) 1617 return (FALSE); 1618 if (vw == vw->vw_device->vd_windows[VT_CONSWINDOW]) 1619 cnavailable(vw->vw_terminal->consdev, FALSE); 1620 if (vw->vw_proc == NULL || vt_proc_alive(vw) == FALSE) { 1621 vw->vw_proc = NULL; 1622 vw->vw_pid = 0; 1623 return (TRUE); 1624 } 1625 vw->vw_flags |= VWF_SWWAIT_ACQ; 1626 PROC_LOCK(vw->vw_proc); 1627 kern_psignal(vw->vw_proc, vw->vw_smode.acqsig); 1628 PROC_UNLOCK(vw->vw_proc); 1629 DPRINTF(1, "sending acqsig to %d\n", vw->vw_pid); 1630 return (TRUE); 1631 } 1632 1633 static int 1634 finish_vt_rel(struct vt_window *vw, int release, int *s) 1635 { 1636 1637 if (vw->vw_flags & VWF_SWWAIT_REL) { 1638 vw->vw_flags &= ~VWF_SWWAIT_REL; 1639 if (release) { 1640 callout_drain(&vw->vw_proc_dead_timer); 1641 vt_late_window_switch(vw->vw_switch_to); 1642 } 1643 return (0); 1644 } 1645 return (EINVAL); 1646 } 1647 1648 static int 1649 finish_vt_acq(struct vt_window *vw) 1650 { 1651 1652 if (vw->vw_flags & VWF_SWWAIT_ACQ) { 1653 vw->vw_flags &= ~VWF_SWWAIT_ACQ; 1654 return (0); 1655 } 1656 return (EINVAL); 1657 } 1658 1659 #ifndef SC_NO_CUTPASTE 1660 static void 1661 vt_mouse_terminput_button(struct vt_device *vd, int button) 1662 { 1663 struct vt_window *vw; 1664 struct vt_font *vf; 1665 char mouseb[6] = "\x1B[M"; 1666 int i, x, y; 1667 1668 vw = vd->vd_curwindow; 1669 vf = vw->vw_font; 1670 1671 /* Translate to char position. */ 1672 x = vd->vd_mx / vf->vf_width; 1673 y = vd->vd_my / vf->vf_height; 1674 /* Avoid overflow. */ 1675 x = MIN(x, 255 - '!'); 1676 y = MIN(y, 255 - '!'); 1677 1678 mouseb[3] = ' ' + button; 1679 mouseb[4] = '!' + x; 1680 mouseb[5] = '!' + y; 1681 1682 for (i = 0; i < sizeof(mouseb); i++) 1683 terminal_input_char(vw->vw_terminal, mouseb[i]); 1684 } 1685 1686 static void 1687 vt_mouse_terminput(struct vt_device *vd, int type, int x, int y, int event, 1688 int cnt) 1689 { 1690 1691 switch (type) { 1692 case MOUSE_BUTTON_EVENT: 1693 if (cnt > 0) { 1694 /* Mouse button pressed. */ 1695 if (event & MOUSE_BUTTON1DOWN) 1696 vt_mouse_terminput_button(vd, 0); 1697 if (event & MOUSE_BUTTON2DOWN) 1698 vt_mouse_terminput_button(vd, 1); 1699 if (event & MOUSE_BUTTON3DOWN) 1700 vt_mouse_terminput_button(vd, 2); 1701 } else { 1702 /* Mouse button released. */ 1703 vt_mouse_terminput_button(vd, 3); 1704 } 1705 break; 1706 #ifdef notyet 1707 case MOUSE_MOTION_EVENT: 1708 if (mouse->u.data.z < 0) { 1709 /* Scroll up. */ 1710 sc_mouse_input_button(vd, 64); 1711 } else if (mouse->u.data.z > 0) { 1712 /* Scroll down. */ 1713 sc_mouse_input_button(vd, 65); 1714 } 1715 break; 1716 #endif 1717 } 1718 } 1719 1720 static void 1721 vt_mouse_paste() 1722 { 1723 term_char_t *buf; 1724 int i, len; 1725 1726 len = VD_PASTEBUFLEN(main_vd); 1727 buf = VD_PASTEBUF(main_vd); 1728 len /= sizeof(term_char_t); 1729 for (i = 0; i < len; i++) { 1730 if (buf[i] == '\0') 1731 continue; 1732 terminal_input_char(main_vd->vd_curwindow->vw_terminal, 1733 buf[i]); 1734 } 1735 } 1736 1737 void 1738 vt_mouse_event(int type, int x, int y, int event, int cnt, int mlevel) 1739 { 1740 struct vt_device *vd; 1741 struct vt_window *vw; 1742 struct vt_font *vf; 1743 term_pos_t size; 1744 int len, mark; 1745 1746 vd = main_vd; 1747 vw = vd->vd_curwindow; 1748 vf = vw->vw_font; 1749 mark = 0; 1750 1751 if (vw->vw_flags & (VWF_MOUSE_HIDE | VWF_GRAPHICS)) 1752 /* 1753 * Either the mouse is disabled, or the window is in 1754 * "graphics mode". The graphics mode is usually set by 1755 * an X server, using the KDSETMODE ioctl. 1756 */ 1757 return; 1758 1759 if (vf == NULL) /* Text mode. */ 1760 return; 1761 1762 /* 1763 * TODO: add flag about pointer position changed, to not redraw chars 1764 * under mouse pointer when nothing changed. 1765 */ 1766 1767 if (vw->vw_mouse_level > 0) 1768 vt_mouse_terminput(vd, type, x, y, event, cnt); 1769 1770 switch (type) { 1771 case MOUSE_ACTION: 1772 case MOUSE_MOTION_EVENT: 1773 /* Movement */ 1774 x += vd->vd_mx; 1775 y += vd->vd_my; 1776 1777 vt_termsize(vd, vf, &size); 1778 1779 /* Apply limits. */ 1780 x = MAX(x, 0); 1781 y = MAX(y, 0); 1782 x = MIN(x, (size.tp_col * vf->vf_width) - 1); 1783 y = MIN(y, (size.tp_row * vf->vf_height) - 1); 1784 1785 vd->vd_mx = x; 1786 vd->vd_my = y; 1787 if (vd->vd_mstate & MOUSE_BUTTON1DOWN) 1788 vtbuf_set_mark(&vw->vw_buf, VTB_MARK_MOVE, 1789 vd->vd_mx / vf->vf_width, 1790 vd->vd_my / vf->vf_height); 1791 1792 vt_resume_flush_timer(vw->vw_device, 0); 1793 return; /* Done */ 1794 case MOUSE_BUTTON_EVENT: 1795 /* Buttons */ 1796 break; 1797 default: 1798 return; /* Done */ 1799 } 1800 1801 switch (event) { 1802 case MOUSE_BUTTON1DOWN: 1803 switch (cnt % 4) { 1804 case 0: /* up */ 1805 mark = VTB_MARK_END; 1806 break; 1807 case 1: /* single click: start cut operation */ 1808 mark = VTB_MARK_START; 1809 break; 1810 case 2: /* double click: cut a word */ 1811 mark = VTB_MARK_WORD; 1812 break; 1813 case 3: /* triple click: cut a line */ 1814 mark = VTB_MARK_ROW; 1815 break; 1816 } 1817 break; 1818 case VT_MOUSE_PASTEBUTTON: 1819 switch (cnt) { 1820 case 0: /* up */ 1821 break; 1822 default: 1823 vt_mouse_paste(); 1824 break; 1825 } 1826 return; /* Done */ 1827 case VT_MOUSE_EXTENDBUTTON: 1828 switch (cnt) { 1829 case 0: /* up */ 1830 if (!(vd->vd_mstate & MOUSE_BUTTON1DOWN)) 1831 mark = VTB_MARK_EXTEND; 1832 else 1833 mark = 0; 1834 break; 1835 default: 1836 mark = VTB_MARK_EXTEND; 1837 break; 1838 } 1839 break; 1840 default: 1841 return; /* Done */ 1842 } 1843 1844 /* Save buttons state. */ 1845 if (cnt > 0) 1846 vd->vd_mstate |= event; 1847 else 1848 vd->vd_mstate &= ~event; 1849 1850 if (vtbuf_set_mark(&vw->vw_buf, mark, vd->vd_mx / vf->vf_width, 1851 vd->vd_my / vf->vf_height) == 1) { 1852 /* 1853 * We have something marked to copy, so update pointer to 1854 * window with selection. 1855 */ 1856 vt_resume_flush_timer(vw->vw_device, 0); 1857 1858 switch (mark) { 1859 case VTB_MARK_END: 1860 case VTB_MARK_WORD: 1861 case VTB_MARK_ROW: 1862 case VTB_MARK_EXTEND: 1863 break; 1864 default: 1865 /* Other types of mark do not require to copy data. */ 1866 return; 1867 } 1868 1869 /* Get current selection size in bytes. */ 1870 len = vtbuf_get_marked_len(&vw->vw_buf); 1871 if (len <= 0) 1872 return; 1873 1874 /* Reallocate buffer only if old one is too small. */ 1875 if (len > VD_PASTEBUFSZ(vd)) { 1876 VD_PASTEBUF(vd) = realloc(VD_PASTEBUF(vd), len, M_VT, 1877 M_WAITOK | M_ZERO); 1878 /* Update buffer size. */ 1879 VD_PASTEBUFSZ(vd) = len; 1880 } 1881 /* Request copy/paste buffer data, no more than `len' */ 1882 vtbuf_extract_marked(&vw->vw_buf, VD_PASTEBUF(vd), 1883 VD_PASTEBUFSZ(vd)); 1884 1885 VD_PASTEBUFLEN(vd) = len; 1886 1887 /* XXX VD_PASTEBUF(vd) have to be freed on shutdown/unload. */ 1888 } 1889 } 1890 1891 void 1892 vt_mouse_state(int show) 1893 { 1894 struct vt_device *vd; 1895 struct vt_window *vw; 1896 1897 vd = main_vd; 1898 vw = vd->vd_curwindow; 1899 1900 switch (show) { 1901 case VT_MOUSE_HIDE: 1902 vw->vw_flags |= VWF_MOUSE_HIDE; 1903 break; 1904 case VT_MOUSE_SHOW: 1905 vw->vw_flags &= ~VWF_MOUSE_HIDE; 1906 break; 1907 } 1908 1909 /* Mark mouse position as dirty. */ 1910 vt_mark_mouse_position_as_dirty(vd); 1911 vt_resume_flush_timer(vw->vw_device, 0); 1912 } 1913 #endif 1914 1915 static int 1916 vtterm_mmap(struct terminal *tm, vm_ooffset_t offset, vm_paddr_t * paddr, 1917 int nprot, vm_memattr_t *memattr) 1918 { 1919 struct vt_window *vw = tm->tm_softc; 1920 struct vt_device *vd = vw->vw_device; 1921 1922 if (vd->vd_driver->vd_fb_mmap) 1923 return (vd->vd_driver->vd_fb_mmap(vd, offset, paddr, nprot, 1924 memattr)); 1925 1926 return (ENXIO); 1927 } 1928 1929 static int 1930 vtterm_ioctl(struct terminal *tm, u_long cmd, caddr_t data, 1931 struct thread *td) 1932 { 1933 struct vt_window *vw = tm->tm_softc; 1934 struct vt_device *vd = vw->vw_device; 1935 keyboard_t *kbd; 1936 int error, i, s; 1937 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 1938 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 1939 int ival; 1940 1941 switch (cmd) { 1942 case _IO('v', 4): 1943 cmd = VT_RELDISP; 1944 break; 1945 case _IO('v', 5): 1946 cmd = VT_ACTIVATE; 1947 break; 1948 case _IO('v', 6): 1949 cmd = VT_WAITACTIVE; 1950 break; 1951 case _IO('K', 20): 1952 cmd = KDSKBSTATE; 1953 break; 1954 case _IO('K', 67): 1955 cmd = KDSETRAD; 1956 break; 1957 case _IO('K', 7): 1958 cmd = KDSKBMODE; 1959 break; 1960 case _IO('K', 8): 1961 cmd = KDMKTONE; 1962 break; 1963 case _IO('K', 63): 1964 cmd = KIOCSOUND; 1965 break; 1966 case _IO('K', 66): 1967 cmd = KDSETLED; 1968 break; 1969 case _IO('c', 110): 1970 cmd = CONS_SETKBD; 1971 break; 1972 default: 1973 goto skip_thunk; 1974 } 1975 ival = IOCPARM_IVAL(data); 1976 data = (caddr_t)&ival; 1977 skip_thunk: 1978 #endif 1979 1980 switch (cmd) { 1981 case KDSETRAD: /* set keyboard repeat & delay rates (old) */ 1982 if (*(int *)data & ~0x7f) 1983 return (EINVAL); 1984 /* FALLTHROUGH */ 1985 case GIO_KEYMAP: 1986 case PIO_KEYMAP: 1987 case GIO_DEADKEYMAP: 1988 case PIO_DEADKEYMAP: 1989 case GETFKEY: 1990 case SETFKEY: 1991 case KDGKBINFO: 1992 case KDGKBTYPE: 1993 case KDGETREPEAT: /* get keyboard repeat & delay rates */ 1994 case KDSETREPEAT: /* set keyboard repeat & delay rates (new) */ 1995 case KBADDKBD: /* add/remove keyboard to/from mux */ 1996 case KBRELKBD: { 1997 error = 0; 1998 1999 mtx_lock(&Giant); 2000 kbd = kbd_get_keyboard(vd->vd_keyboard); 2001 if (kbd != NULL) 2002 error = kbdd_ioctl(kbd, cmd, data); 2003 mtx_unlock(&Giant); 2004 if (error == ENOIOCTL) { 2005 if (cmd == KDGKBTYPE) { 2006 /* always return something? XXX */ 2007 *(int *)data = 0; 2008 } else { 2009 return (ENODEV); 2010 } 2011 } 2012 return (error); 2013 } 2014 case KDGKBSTATE: { /* get keyboard state (locks) */ 2015 error = 0; 2016 2017 if (vw == vd->vd_curwindow) { 2018 mtx_lock(&Giant); 2019 kbd = kbd_get_keyboard(vd->vd_keyboard); 2020 if (kbd != NULL) 2021 error = vt_save_kbd_state(vw, kbd); 2022 mtx_unlock(&Giant); 2023 2024 if (error != 0) 2025 return (error); 2026 } 2027 2028 *(int *)data = vw->vw_kbdstate & LOCK_MASK; 2029 2030 return (error); 2031 } 2032 case KDSKBSTATE: { /* set keyboard state (locks) */ 2033 int state; 2034 2035 state = *(int *)data; 2036 if (state & ~LOCK_MASK) 2037 return (EINVAL); 2038 2039 vw->vw_kbdstate &= ~LOCK_MASK; 2040 vw->vw_kbdstate |= state; 2041 2042 error = 0; 2043 if (vw == vd->vd_curwindow) { 2044 mtx_lock(&Giant); 2045 kbd = kbd_get_keyboard(vd->vd_keyboard); 2046 if (kbd != NULL) 2047 error = vt_update_kbd_state(vw, kbd); 2048 mtx_unlock(&Giant); 2049 } 2050 2051 return (error); 2052 } 2053 case KDGETLED: { /* get keyboard LED status */ 2054 error = 0; 2055 2056 if (vw == vd->vd_curwindow) { 2057 mtx_lock(&Giant); 2058 kbd = kbd_get_keyboard(vd->vd_keyboard); 2059 if (kbd != NULL) 2060 error = vt_save_kbd_leds(vw, kbd); 2061 mtx_unlock(&Giant); 2062 2063 if (error != 0) 2064 return (error); 2065 } 2066 2067 *(int *)data = vw->vw_kbdstate & LED_MASK; 2068 2069 return (error); 2070 } 2071 case KDSETLED: { /* set keyboard LED status */ 2072 int leds; 2073 2074 leds = *(int *)data; 2075 if (leds & ~LED_MASK) 2076 return (EINVAL); 2077 2078 vw->vw_kbdstate &= ~LED_MASK; 2079 vw->vw_kbdstate |= leds; 2080 2081 error = 0; 2082 if (vw == vd->vd_curwindow) { 2083 mtx_lock(&Giant); 2084 kbd = kbd_get_keyboard(vd->vd_keyboard); 2085 if (kbd != NULL) 2086 error = vt_update_kbd_leds(vw, kbd); 2087 mtx_unlock(&Giant); 2088 } 2089 2090 return (error); 2091 } 2092 case KDGKBMODE: { 2093 error = 0; 2094 2095 if (vw == vd->vd_curwindow) { 2096 mtx_lock(&Giant); 2097 kbd = kbd_get_keyboard(vd->vd_keyboard); 2098 if (kbd != NULL) 2099 error = vt_save_kbd_mode(vw, kbd); 2100 mtx_unlock(&Giant); 2101 2102 if (error != 0) 2103 return (error); 2104 } 2105 2106 *(int *)data = vw->vw_kbdmode; 2107 2108 return (error); 2109 } 2110 case KDSKBMODE: { 2111 int mode; 2112 2113 mode = *(int *)data; 2114 switch (mode) { 2115 case K_XLATE: 2116 case K_RAW: 2117 case K_CODE: 2118 vw->vw_kbdmode = mode; 2119 2120 error = 0; 2121 if (vw == vd->vd_curwindow) { 2122 mtx_lock(&Giant); 2123 kbd = kbd_get_keyboard(vd->vd_keyboard); 2124 if (kbd != NULL) 2125 error = vt_update_kbd_mode(vw, kbd); 2126 mtx_unlock(&Giant); 2127 } 2128 2129 return (error); 2130 default: 2131 return (EINVAL); 2132 } 2133 } 2134 case FBIOGTYPE: 2135 case FBIO_GETWINORG: /* get frame buffer window origin */ 2136 case FBIO_GETDISPSTART: /* get display start address */ 2137 case FBIO_GETLINEWIDTH: /* get scan line width in bytes */ 2138 case FBIO_BLANK: /* blank display */ 2139 if (vd->vd_driver->vd_fb_ioctl) 2140 return (vd->vd_driver->vd_fb_ioctl(vd, cmd, data, td)); 2141 break; 2142 case CONS_BLANKTIME: 2143 /* XXX */ 2144 return (0); 2145 case CONS_GET: 2146 /* XXX */ 2147 *(int *)data = M_CG640x480; 2148 return (0); 2149 case CONS_BELLTYPE: /* set bell type sound */ 2150 if ((*(int *)data) & CONS_QUIET_BELL) 2151 vd->vd_flags |= VDF_QUIET_BELL; 2152 else 2153 vd->vd_flags &= ~VDF_QUIET_BELL; 2154 return (0); 2155 case CONS_GETINFO: { 2156 vid_info_t *vi = (vid_info_t *)data; 2157 if (vi->size != sizeof(struct vid_info)) 2158 return (EINVAL); 2159 2160 if (vw == vd->vd_curwindow) { 2161 kbd = kbd_get_keyboard(vd->vd_keyboard); 2162 if (kbd != NULL) 2163 vt_save_kbd_state(vw, kbd); 2164 } 2165 2166 vi->m_num = vd->vd_curwindow->vw_number + 1; 2167 vi->mk_keylock = vw->vw_kbdstate & LOCK_MASK; 2168 /* XXX: other fields! */ 2169 return (0); 2170 } 2171 case CONS_GETVERS: 2172 *(int *)data = 0x200; 2173 return (0); 2174 case CONS_MODEINFO: 2175 /* XXX */ 2176 return (0); 2177 case CONS_MOUSECTL: { 2178 mouse_info_t *mouse = (mouse_info_t*)data; 2179 2180 /* 2181 * All the commands except MOUSE_SHOW nd MOUSE_HIDE 2182 * should not be applied to individual TTYs, but only to 2183 * consolectl. 2184 */ 2185 switch (mouse->operation) { 2186 case MOUSE_HIDE: 2187 if (vd->vd_flags & VDF_MOUSECURSOR) { 2188 vd->vd_flags &= ~VDF_MOUSECURSOR; 2189 #ifndef SC_NO_CUTPASTE 2190 vt_mouse_state(VT_MOUSE_HIDE); 2191 #endif 2192 } 2193 return (0); 2194 case MOUSE_SHOW: 2195 if (!(vd->vd_flags & VDF_MOUSECURSOR)) { 2196 vd->vd_flags |= VDF_MOUSECURSOR; 2197 vd->vd_mx = vd->vd_width / 2; 2198 vd->vd_my = vd->vd_height / 2; 2199 #ifndef SC_NO_CUTPASTE 2200 vt_mouse_state(VT_MOUSE_SHOW); 2201 #endif 2202 } 2203 return (0); 2204 default: 2205 return (EINVAL); 2206 } 2207 } 2208 case PIO_VFONT: { 2209 struct vt_font *vf; 2210 2211 if (vd->vd_flags & VDF_TEXTMODE) 2212 return (ENOTSUP); 2213 2214 error = vtfont_load((void *)data, &vf); 2215 if (error != 0) 2216 return (error); 2217 2218 error = vt_change_font(vw, vf); 2219 vtfont_unref(vf); 2220 return (error); 2221 } 2222 case PIO_VFONT_DEFAULT: { 2223 /* Reset to default font. */ 2224 error = vt_change_font(vw, &vt_font_default); 2225 return (error); 2226 } 2227 case GIO_SCRNMAP: { 2228 scrmap_t *sm = (scrmap_t *)data; 2229 2230 /* We don't have screen maps, so return a handcrafted one. */ 2231 for (i = 0; i < 256; i++) 2232 sm->scrmap[i] = i; 2233 return (0); 2234 } 2235 case KDSETMODE: 2236 /* 2237 * FIXME: This implementation is incomplete compared to 2238 * syscons. 2239 */ 2240 switch (*(int *)data) { 2241 case KD_TEXT: 2242 case KD_TEXT1: 2243 case KD_PIXEL: 2244 vw->vw_flags &= ~VWF_GRAPHICS; 2245 break; 2246 case KD_GRAPHICS: 2247 vw->vw_flags |= VWF_GRAPHICS; 2248 break; 2249 } 2250 return (0); 2251 case KDENABIO: /* allow io operations */ 2252 error = priv_check(td, PRIV_IO); 2253 if (error != 0) 2254 return (error); 2255 error = securelevel_gt(td->td_ucred, 0); 2256 if (error != 0) 2257 return (error); 2258 #if defined(__i386__) 2259 td->td_frame->tf_eflags |= PSL_IOPL; 2260 #elif defined(__amd64__) 2261 td->td_frame->tf_rflags |= PSL_IOPL; 2262 #endif 2263 return (0); 2264 case KDDISABIO: /* disallow io operations (default) */ 2265 #if defined(__i386__) 2266 td->td_frame->tf_eflags &= ~PSL_IOPL; 2267 #elif defined(__amd64__) 2268 td->td_frame->tf_rflags &= ~PSL_IOPL; 2269 #endif 2270 return (0); 2271 case KDMKTONE: /* sound the bell */ 2272 vtterm_beep(tm, *(u_int *)data); 2273 return (0); 2274 case KIOCSOUND: /* make tone (*data) hz */ 2275 /* TODO */ 2276 return (0); 2277 case CONS_SETKBD: /* set the new keyboard */ 2278 mtx_lock(&Giant); 2279 error = 0; 2280 if (vd->vd_keyboard != *(int *)data) { 2281 kbd = kbd_get_keyboard(*(int *)data); 2282 if (kbd == NULL) { 2283 mtx_unlock(&Giant); 2284 return (EINVAL); 2285 } 2286 i = kbd_allocate(kbd->kb_name, kbd->kb_unit, 2287 (void *)vd, vt_kbdevent, vd); 2288 if (i >= 0) { 2289 if (vd->vd_keyboard != -1) { 2290 vt_save_kbd_state(vd->vd_curwindow, kbd); 2291 kbd_release(kbd, (void *)vd); 2292 } 2293 kbd = kbd_get_keyboard(i); 2294 vd->vd_keyboard = i; 2295 2296 vt_update_kbd_mode(vd->vd_curwindow, kbd); 2297 vt_update_kbd_state(vd->vd_curwindow, kbd); 2298 } else { 2299 error = EPERM; /* XXX */ 2300 } 2301 } 2302 mtx_unlock(&Giant); 2303 return (error); 2304 case CONS_RELKBD: /* release the current keyboard */ 2305 mtx_lock(&Giant); 2306 error = 0; 2307 if (vd->vd_keyboard != -1) { 2308 kbd = kbd_get_keyboard(vd->vd_keyboard); 2309 if (kbd == NULL) { 2310 mtx_unlock(&Giant); 2311 return (EINVAL); 2312 } 2313 vt_save_kbd_state(vd->vd_curwindow, kbd); 2314 error = kbd_release(kbd, (void *)vd); 2315 if (error == 0) { 2316 vd->vd_keyboard = -1; 2317 } 2318 } 2319 mtx_unlock(&Giant); 2320 return (error); 2321 case VT_ACTIVATE: { 2322 int win; 2323 win = *(int *)data - 1; 2324 DPRINTF(5, "%s%d: VT_ACTIVATE ttyv%d ", SC_DRIVER_NAME, 2325 VT_UNIT(vw), win); 2326 if ((win >= VT_MAXWINDOWS) || (win < 0)) 2327 return (EINVAL); 2328 return (vt_proc_window_switch(vd->vd_windows[win])); 2329 } 2330 case VT_GETACTIVE: 2331 *(int *)data = vd->vd_curwindow->vw_number + 1; 2332 return (0); 2333 case VT_GETINDEX: 2334 *(int *)data = vw->vw_number + 1; 2335 return (0); 2336 case VT_LOCKSWITCH: 2337 /* TODO: Check current state, switching can be in progress. */ 2338 if ((*(int *)data) == 0x01) 2339 vw->vw_flags |= VWF_VTYLOCK; 2340 else if ((*(int *)data) == 0x02) 2341 vw->vw_flags &= ~VWF_VTYLOCK; 2342 else 2343 return (EINVAL); 2344 return (0); 2345 case VT_OPENQRY: 2346 VT_LOCK(vd); 2347 for (i = 0; i < VT_MAXWINDOWS; i++) { 2348 vw = vd->vd_windows[i]; 2349 if (vw == NULL) 2350 continue; 2351 if (!(vw->vw_flags & VWF_OPENED)) { 2352 *(int *)data = vw->vw_number + 1; 2353 VT_UNLOCK(vd); 2354 return (0); 2355 } 2356 } 2357 VT_UNLOCK(vd); 2358 return (EINVAL); 2359 case VT_WAITACTIVE: 2360 error = 0; 2361 2362 i = *(unsigned int *)data; 2363 if (i > VT_MAXWINDOWS) 2364 return (EINVAL); 2365 if (i != 0) 2366 vw = vd->vd_windows[i - 1]; 2367 2368 VT_LOCK(vd); 2369 while (vd->vd_curwindow != vw && error == 0) 2370 error = cv_wait_sig(&vd->vd_winswitch, &vd->vd_lock); 2371 VT_UNLOCK(vd); 2372 return (error); 2373 case VT_SETMODE: { /* set screen switcher mode */ 2374 struct vt_mode *mode; 2375 struct proc *p1; 2376 2377 mode = (struct vt_mode *)data; 2378 DPRINTF(5, "%s%d: VT_SETMODE ", SC_DRIVER_NAME, VT_UNIT(vw)); 2379 if (vw->vw_smode.mode == VT_PROCESS) { 2380 p1 = pfind(vw->vw_pid); 2381 if (vw->vw_proc == p1 && vw->vw_proc != td->td_proc) { 2382 if (p1) 2383 PROC_UNLOCK(p1); 2384 DPRINTF(5, "error EPERM\n"); 2385 return (EPERM); 2386 } 2387 if (p1) 2388 PROC_UNLOCK(p1); 2389 } 2390 if (mode->mode == VT_AUTO) { 2391 vw->vw_smode.mode = VT_AUTO; 2392 vw->vw_proc = NULL; 2393 vw->vw_pid = 0; 2394 DPRINTF(5, "VT_AUTO, "); 2395 if (vw == vw->vw_device->vd_windows[VT_CONSWINDOW]) 2396 cnavailable(vw->vw_terminal->consdev, TRUE); 2397 /* were we in the middle of the vty switching process? */ 2398 if (finish_vt_rel(vw, TRUE, &s) == 0) 2399 DPRINTF(5, "reset WAIT_REL, "); 2400 if (finish_vt_acq(vw) == 0) 2401 DPRINTF(5, "reset WAIT_ACQ, "); 2402 return (0); 2403 } else if (mode->mode == VT_PROCESS) { 2404 if (!ISSIGVALID(mode->relsig) || 2405 !ISSIGVALID(mode->acqsig) || 2406 !ISSIGVALID(mode->frsig)) { 2407 DPRINTF(5, "error EINVAL\n"); 2408 return (EINVAL); 2409 } 2410 DPRINTF(5, "VT_PROCESS %d, ", td->td_proc->p_pid); 2411 bcopy(data, &vw->vw_smode, sizeof(struct vt_mode)); 2412 vw->vw_proc = td->td_proc; 2413 vw->vw_pid = vw->vw_proc->p_pid; 2414 if (vw == vw->vw_device->vd_windows[VT_CONSWINDOW]) 2415 cnavailable(vw->vw_terminal->consdev, FALSE); 2416 } else { 2417 DPRINTF(5, "VT_SETMODE failed, unknown mode %d\n", 2418 mode->mode); 2419 return (EINVAL); 2420 } 2421 DPRINTF(5, "\n"); 2422 return (0); 2423 } 2424 case VT_GETMODE: /* get screen switcher mode */ 2425 bcopy(&vw->vw_smode, data, sizeof(struct vt_mode)); 2426 return (0); 2427 2428 case VT_RELDISP: /* screen switcher ioctl */ 2429 /* 2430 * This must be the current vty which is in the VT_PROCESS 2431 * switching mode... 2432 */ 2433 if ((vw != vd->vd_curwindow) || (vw->vw_smode.mode != 2434 VT_PROCESS)) { 2435 return (EINVAL); 2436 } 2437 /* ...and this process is controlling it. */ 2438 if (vw->vw_proc != td->td_proc) { 2439 return (EPERM); 2440 } 2441 error = EINVAL; 2442 switch(*(int *)data) { 2443 case VT_FALSE: /* user refuses to release screen, abort */ 2444 if ((error = finish_vt_rel(vw, FALSE, &s)) == 0) 2445 DPRINTF(5, "%s%d: VT_RELDISP: VT_FALSE\n", 2446 SC_DRIVER_NAME, VT_UNIT(vw)); 2447 break; 2448 case VT_TRUE: /* user has released screen, go on */ 2449 /* finish_vt_rel(..., TRUE, ...) should not be locked */ 2450 if (vw->vw_flags & VWF_SWWAIT_REL) { 2451 if ((error = finish_vt_rel(vw, TRUE, &s)) == 0) 2452 DPRINTF(5, "%s%d: VT_RELDISP: VT_TRUE\n", 2453 SC_DRIVER_NAME, VT_UNIT(vw)); 2454 } else { 2455 error = EINVAL; 2456 } 2457 return (error); 2458 case VT_ACKACQ: /* acquire acknowledged, switch completed */ 2459 if ((error = finish_vt_acq(vw)) == 0) 2460 DPRINTF(5, "%s%d: VT_RELDISP: VT_ACKACQ\n", 2461 SC_DRIVER_NAME, VT_UNIT(vw)); 2462 break; 2463 default: 2464 break; 2465 } 2466 return (error); 2467 } 2468 2469 return (ENOIOCTL); 2470 } 2471 2472 static struct vt_window * 2473 vt_allocate_window(struct vt_device *vd, unsigned int window) 2474 { 2475 struct vt_window *vw; 2476 struct terminal *tm; 2477 term_pos_t size; 2478 struct winsize wsz; 2479 2480 vw = malloc(sizeof *vw, M_VT, M_WAITOK|M_ZERO); 2481 vw->vw_device = vd; 2482 vw->vw_number = window; 2483 vw->vw_kbdmode = K_XLATE; 2484 2485 if ((vd->vd_flags & VDF_TEXTMODE) == 0) { 2486 vw->vw_font = vtfont_ref(&vt_font_default); 2487 vt_compute_drawable_area(vw); 2488 } 2489 2490 vt_termsize(vd, vw->vw_font, &size); 2491 vt_winsize(vd, vw->vw_font, &wsz); 2492 vtbuf_init(&vw->vw_buf, &size); 2493 2494 tm = vw->vw_terminal = terminal_alloc(&vt_termclass, vw); 2495 terminal_set_winsize(tm, &wsz); 2496 vd->vd_windows[window] = vw; 2497 callout_init(&vw->vw_proc_dead_timer, 0); 2498 2499 return (vw); 2500 } 2501 2502 void 2503 vt_upgrade(struct vt_device *vd) 2504 { 2505 struct vt_window *vw; 2506 unsigned int i; 2507 2508 if (!vty_enabled(VTY_VT)) 2509 return; 2510 if (main_vd->vd_driver == NULL) 2511 return; 2512 2513 for (i = 0; i < VT_MAXWINDOWS; i++) { 2514 vw = vd->vd_windows[i]; 2515 if (vw == NULL) { 2516 /* New window. */ 2517 vw = vt_allocate_window(vd, i); 2518 } 2519 if (!(vw->vw_flags & VWF_READY)) { 2520 callout_init(&vw->vw_proc_dead_timer, 0); 2521 terminal_maketty(vw->vw_terminal, "v%r", VT_UNIT(vw)); 2522 vw->vw_flags |= VWF_READY; 2523 if (vw->vw_flags & VWF_CONSOLE) { 2524 /* For existing console window. */ 2525 EVENTHANDLER_REGISTER(shutdown_pre_sync, 2526 vt_window_switch, vw, SHUTDOWN_PRI_DEFAULT); 2527 } 2528 } 2529 2530 } 2531 VT_LOCK(vd); 2532 if (vd->vd_curwindow == NULL) 2533 vd->vd_curwindow = vd->vd_windows[VT_CONSWINDOW]; 2534 2535 if (!(vd->vd_flags & VDF_ASYNC)) { 2536 /* Attach keyboard. */ 2537 vt_allocate_keyboard(vd); 2538 2539 /* Init 25 Hz timer. */ 2540 callout_init_mtx(&vd->vd_timer, &vd->vd_lock, 0); 2541 2542 /* Start timer when everything ready. */ 2543 vd->vd_flags |= VDF_ASYNC; 2544 callout_reset(&vd->vd_timer, hz / VT_TIMERFREQ, vt_timer, vd); 2545 vd->vd_timer_armed = 1; 2546 } 2547 2548 VT_UNLOCK(vd); 2549 2550 /* Refill settings with new sizes. */ 2551 vt_resize(vd); 2552 } 2553 2554 static void 2555 vt_resize(struct vt_device *vd) 2556 { 2557 struct vt_window *vw; 2558 int i; 2559 2560 for (i = 0; i < VT_MAXWINDOWS; i++) { 2561 vw = vd->vd_windows[i]; 2562 VT_LOCK(vd); 2563 /* Assign default font to window, if not textmode. */ 2564 if (!(vd->vd_flags & VDF_TEXTMODE) && vw->vw_font == NULL) 2565 vw->vw_font = vtfont_ref(&vt_font_default); 2566 VT_UNLOCK(vd); 2567 2568 /* Resize terminal windows */ 2569 while (vt_change_font(vw, vw->vw_font) == EBUSY) { 2570 DPRINTF(100, "%s: vt_change_font() is busy, " 2571 "window %d\n", __func__, i); 2572 } 2573 } 2574 } 2575 2576 void 2577 vt_allocate(struct vt_driver *drv, void *softc) 2578 { 2579 struct vt_device *vd; 2580 2581 if (!vty_enabled(VTY_VT)) 2582 return; 2583 2584 if (main_vd->vd_driver == NULL) { 2585 main_vd->vd_driver = drv; 2586 printf("VT: initialize with new VT driver \"%s\".\n", 2587 drv->vd_name); 2588 } else { 2589 /* 2590 * Check if have rights to replace current driver. For example: 2591 * it is bad idea to replace KMS driver with generic VGA one. 2592 */ 2593 if (drv->vd_priority <= main_vd->vd_driver->vd_priority) { 2594 printf("VT: Driver priority %d too low. Current %d\n ", 2595 drv->vd_priority, main_vd->vd_driver->vd_priority); 2596 return; 2597 } 2598 printf("VT: Replacing driver \"%s\" with new \"%s\".\n", 2599 main_vd->vd_driver->vd_name, drv->vd_name); 2600 } 2601 vd = main_vd; 2602 2603 if (vd->vd_flags & VDF_ASYNC) { 2604 /* Stop vt_flush periodic task. */ 2605 vt_suspend_flush_timer(vd); 2606 /* 2607 * Mute current terminal until we done. vt_change_font (called 2608 * from vt_resize) will unmute it. 2609 */ 2610 terminal_mute(vd->vd_curwindow->vw_terminal, 1); 2611 } 2612 2613 /* 2614 * Reset VDF_TEXTMODE flag, driver who require that flag (vt_vga) will 2615 * set it. 2616 */ 2617 VT_LOCK(vd); 2618 vd->vd_flags &= ~VDF_TEXTMODE; 2619 2620 vd->vd_driver = drv; 2621 vd->vd_softc = softc; 2622 vd->vd_driver->vd_init(vd); 2623 VT_UNLOCK(vd); 2624 2625 /* Update windows sizes and initialize last items. */ 2626 vt_upgrade(vd); 2627 2628 #ifdef DEV_SPLASH 2629 if (vd->vd_flags & VDF_SPLASH) 2630 vtterm_splash(vd); 2631 #endif 2632 2633 if (vd->vd_flags & VDF_ASYNC) { 2634 /* Allow to put chars now. */ 2635 terminal_mute(vd->vd_curwindow->vw_terminal, 0); 2636 /* Rerun timer for screen updates. */ 2637 vt_resume_flush_timer(vd, 0); 2638 } 2639 2640 /* 2641 * Register as console. If it already registered, cnadd() will ignore 2642 * it. 2643 */ 2644 termcn_cnregister(vd->vd_windows[VT_CONSWINDOW]->vw_terminal); 2645 } 2646 2647 void 2648 vt_suspend() 2649 { 2650 2651 if (vt_suspendswitch == 0) 2652 return; 2653 /* Save current window. */ 2654 main_vd->vd_savedwindow = main_vd->vd_curwindow; 2655 /* Ask holding process to free window and switch to console window */ 2656 vt_proc_window_switch(main_vd->vd_windows[VT_CONSWINDOW]); 2657 } 2658 2659 void 2660 vt_resume() 2661 { 2662 2663 if (vt_suspendswitch == 0) 2664 return; 2665 /* Switch back to saved window */ 2666 if (main_vd->vd_savedwindow != NULL) 2667 vt_proc_window_switch(main_vd->vd_savedwindow); 2668 main_vd->vd_savedwindow = NULL; 2669 } 2670