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 #define VT_LOCK_ASSERT(vd, what) mtx_assert(&(vd)->vd_lock, what) 118 119 #define VT_UNIT(vw) ((vw)->vw_device->vd_unit * VT_MAXWINDOWS + \ 120 (vw)->vw_number) 121 122 static SYSCTL_NODE(_kern, OID_AUTO, vt, CTLFLAG_RD, 0, "vt(9) parameters"); 123 VT_SYSCTL_INT(enable_altgr, 1, "Enable AltGr key (Do not assume R.Alt as Alt)"); 124 VT_SYSCTL_INT(enable_bell, 1, "Enable bell"); 125 VT_SYSCTL_INT(debug, 0, "vt(9) debug level"); 126 VT_SYSCTL_INT(deadtimer, 15, "Time to wait busy process in VT_PROCESS mode"); 127 VT_SYSCTL_INT(suspendswitch, 1, "Switch to VT0 before suspend"); 128 129 /* Allow to disable some keyboard combinations. */ 130 VT_SYSCTL_INT(kbd_halt, 1, "Enable halt keyboard combination. " 131 "See kbdmap(5) to configure."); 132 VT_SYSCTL_INT(kbd_poweroff, 1, "Enable Power Off keyboard combination. " 133 "See kbdmap(5) to configure."); 134 VT_SYSCTL_INT(kbd_reboot, 1, "Enable reboot keyboard combination. " 135 "See kbdmap(5) to configure (typically Ctrl-Alt-Delete)."); 136 VT_SYSCTL_INT(kbd_debug, 1, "Enable key combination to enter debugger. " 137 "See kbdmap(5) to configure (typically Ctrl-Alt-Esc)."); 138 VT_SYSCTL_INT(kbd_panic, 0, "Enable request to panic. " 139 "See kbdmap(5) to configure."); 140 141 static struct vt_device vt_consdev; 142 static unsigned int vt_unit = 0; 143 static MALLOC_DEFINE(M_VT, "vt", "vt device"); 144 struct vt_device *main_vd = &vt_consdev; 145 146 /* Boot logo. */ 147 extern unsigned int vt_logo_width; 148 extern unsigned int vt_logo_height; 149 extern unsigned int vt_logo_depth; 150 extern unsigned char vt_logo_image[]; 151 152 /* Font. */ 153 extern struct vt_font vt_font_default; 154 #ifndef SC_NO_CUTPASTE 155 extern struct vt_mouse_cursor vt_default_mouse_pointer; 156 #endif 157 158 static int signal_vt_rel(struct vt_window *); 159 static int signal_vt_acq(struct vt_window *); 160 static int finish_vt_rel(struct vt_window *, int, int *); 161 static int finish_vt_acq(struct vt_window *); 162 static int vt_window_switch(struct vt_window *); 163 static int vt_late_window_switch(struct vt_window *); 164 static int vt_proc_alive(struct vt_window *); 165 static void vt_resize(struct vt_device *); 166 static void vt_update_static(void *); 167 #ifndef SC_NO_CUTPASTE 168 static void vt_mouse_paste(void); 169 #endif 170 171 SET_DECLARE(vt_drv_set, struct vt_driver); 172 173 #define _VTDEFH MAX(100, PIXEL_HEIGHT(VT_FB_DEFAULT_HEIGHT)) 174 #define _VTDEFW MAX(200, PIXEL_WIDTH(VT_FB_DEFAULT_WIDTH)) 175 176 static struct terminal vt_consterm; 177 static struct vt_window vt_conswindow; 178 static struct vt_device vt_consdev = { 179 .vd_driver = NULL, 180 .vd_softc = NULL, 181 .vd_flags = VDF_INVALID, 182 .vd_windows = { [VT_CONSWINDOW] = &vt_conswindow, }, 183 .vd_curwindow = &vt_conswindow, 184 .vd_kbstate = 0, 185 186 #ifndef SC_NO_CUTPASTE 187 .vd_pastebuf = { 188 .vpb_buf = NULL, 189 .vpb_bufsz = 0, 190 .vpb_len = 0 191 }, 192 .vd_mcursor = &vt_default_mouse_pointer, 193 .vd_mcursor_fg = TC_WHITE, 194 .vd_mcursor_bg = TC_BLACK, 195 #endif 196 }; 197 static term_char_t vt_constextbuf[(_VTDEFW) * (VBF_DEFAULT_HISTORY_SIZE)]; 198 static term_char_t *vt_constextbufrows[VBF_DEFAULT_HISTORY_SIZE]; 199 static struct vt_window vt_conswindow = { 200 .vw_number = VT_CONSWINDOW, 201 .vw_flags = VWF_CONSOLE, 202 .vw_buf = { 203 .vb_buffer = &vt_constextbuf[0], 204 .vb_rows = &vt_constextbufrows[0], 205 .vb_history_size = VBF_DEFAULT_HISTORY_SIZE, 206 .vb_curroffset = 0, 207 .vb_roffset = 0, 208 .vb_flags = VBF_STATIC, 209 .vb_mark_start = {.tp_row = 0, .tp_col = 0,}, 210 .vb_mark_end = {.tp_row = 0, .tp_col = 0,}, 211 .vb_scr_size = { 212 .tp_row = _VTDEFH, 213 .tp_col = _VTDEFW, 214 }, 215 }, 216 .vw_device = &vt_consdev, 217 .vw_terminal = &vt_consterm, 218 .vw_kbdmode = K_XLATE, 219 .vw_grabbed = 0, 220 }; 221 static struct terminal vt_consterm = { 222 .tm_class = &vt_termclass, 223 .tm_softc = &vt_conswindow, 224 .tm_flags = TF_CONS, 225 }; 226 static struct consdev vt_consterm_consdev = { 227 .cn_ops = &termcn_cnops, 228 .cn_arg = &vt_consterm, 229 .cn_name = "ttyv0", 230 }; 231 232 /* Add to set of consoles. */ 233 DATA_SET(cons_set, vt_consterm_consdev); 234 235 /* 236 * Right after kmem is done to allow early drivers to use locking and allocate 237 * memory. 238 */ 239 SYSINIT(vt_update_static, SI_SUB_KMEM, SI_ORDER_ANY, vt_update_static, 240 &vt_consdev); 241 /* Delay until all devices attached, to not waste time. */ 242 SYSINIT(vt_early_cons, SI_SUB_INT_CONFIG_HOOKS, SI_ORDER_ANY, vt_upgrade, 243 &vt_consdev); 244 245 /* Initialize locks/mem depended members. */ 246 static void 247 vt_update_static(void *dummy) 248 { 249 250 if (!vty_enabled(VTY_VT)) 251 return; 252 if (main_vd->vd_driver != NULL) 253 printf("VT: running with driver \"%s\".\n", 254 main_vd->vd_driver->vd_name); 255 else 256 printf("VT: init without driver.\n"); 257 258 mtx_init(&main_vd->vd_lock, "vtdev", NULL, MTX_DEF); 259 cv_init(&main_vd->vd_winswitch, "vtwswt"); 260 } 261 262 static void 263 vt_schedule_flush(struct vt_device *vd, int ms) 264 { 265 266 if (ms <= 0) 267 /* Default to initial value. */ 268 ms = 1000 / VT_TIMERFREQ; 269 270 callout_schedule(&vd->vd_timer, hz / (1000 / ms)); 271 } 272 273 static void 274 vt_resume_flush_timer(struct vt_device *vd, int ms) 275 { 276 277 if (!(vd->vd_flags & VDF_ASYNC) || 278 !atomic_cmpset_int(&vd->vd_timer_armed, 0, 1)) 279 return; 280 281 vt_schedule_flush(vd, ms); 282 } 283 284 static void 285 vt_suspend_flush_timer(struct vt_device *vd) 286 { 287 /* 288 * As long as this function is called locked, callout_stop() 289 * has the same effect like callout_drain() with regard to 290 * preventing the callback function from executing. 291 */ 292 VT_LOCK_ASSERT(vd, MA_OWNED); 293 294 if (!(vd->vd_flags & VDF_ASYNC) || 295 !atomic_cmpset_int(&vd->vd_timer_armed, 1, 0)) 296 return; 297 298 callout_stop(&vd->vd_timer); 299 } 300 301 static void 302 vt_switch_timer(void *arg) 303 { 304 305 vt_late_window_switch((struct vt_window *)arg); 306 } 307 308 static int 309 vt_save_kbd_mode(struct vt_window *vw, keyboard_t *kbd) 310 { 311 int mode, ret; 312 313 mode = 0; 314 ret = kbdd_ioctl(kbd, KDGKBMODE, (caddr_t)&mode); 315 if (ret == ENOIOCTL) 316 ret = ENODEV; 317 if (ret != 0) 318 return (ret); 319 320 vw->vw_kbdmode = mode; 321 322 return (0); 323 } 324 325 static int 326 vt_update_kbd_mode(struct vt_window *vw, keyboard_t *kbd) 327 { 328 int ret; 329 330 ret = kbdd_ioctl(kbd, KDSKBMODE, (caddr_t)&vw->vw_kbdmode); 331 if (ret == ENOIOCTL) 332 ret = ENODEV; 333 334 return (ret); 335 } 336 337 static int 338 vt_save_kbd_state(struct vt_window *vw, keyboard_t *kbd) 339 { 340 int state, ret; 341 342 state = 0; 343 ret = kbdd_ioctl(kbd, KDGKBSTATE, (caddr_t)&state); 344 if (ret == ENOIOCTL) 345 ret = ENODEV; 346 if (ret != 0) 347 return (ret); 348 349 vw->vw_kbdstate &= ~LOCK_MASK; 350 vw->vw_kbdstate |= state & LOCK_MASK; 351 352 return (0); 353 } 354 355 static int 356 vt_update_kbd_state(struct vt_window *vw, keyboard_t *kbd) 357 { 358 int state, ret; 359 360 state = vw->vw_kbdstate & LOCK_MASK; 361 ret = kbdd_ioctl(kbd, KDSKBSTATE, (caddr_t)&state); 362 if (ret == ENOIOCTL) 363 ret = ENODEV; 364 365 return (ret); 366 } 367 368 static int 369 vt_save_kbd_leds(struct vt_window *vw, keyboard_t *kbd) 370 { 371 int leds, ret; 372 373 leds = 0; 374 ret = kbdd_ioctl(kbd, KDGETLED, (caddr_t)&leds); 375 if (ret == ENOIOCTL) 376 ret = ENODEV; 377 if (ret != 0) 378 return (ret); 379 380 vw->vw_kbdstate &= ~LED_MASK; 381 vw->vw_kbdstate |= leds & LED_MASK; 382 383 return (0); 384 } 385 386 static int 387 vt_update_kbd_leds(struct vt_window *vw, keyboard_t *kbd) 388 { 389 int leds, ret; 390 391 leds = vw->vw_kbdstate & LED_MASK; 392 ret = kbdd_ioctl(kbd, KDSETLED, (caddr_t)&leds); 393 if (ret == ENOIOCTL) 394 ret = ENODEV; 395 396 return (ret); 397 } 398 399 static int 400 vt_window_preswitch(struct vt_window *vw, struct vt_window *curvw) 401 { 402 403 DPRINTF(40, "%s\n", __func__); 404 curvw->vw_switch_to = vw; 405 /* Set timer to allow switch in case when process hang. */ 406 callout_reset(&vw->vw_proc_dead_timer, hz * vt_deadtimer, 407 vt_switch_timer, (void *)vw); 408 /* Notify process about vt switch attempt. */ 409 DPRINTF(30, "%s: Notify process.\n", __func__); 410 signal_vt_rel(curvw); 411 412 return (0); 413 } 414 415 static int 416 vt_window_postswitch(struct vt_window *vw) 417 { 418 419 signal_vt_acq(vw); 420 return (0); 421 } 422 423 /* vt_late_window_switch will done VT switching for regular case. */ 424 static int 425 vt_late_window_switch(struct vt_window *vw) 426 { 427 int ret; 428 429 callout_stop(&vw->vw_proc_dead_timer); 430 431 ret = vt_window_switch(vw); 432 if (ret) 433 return (ret); 434 435 /* Notify owner process about terminal availability. */ 436 if (vw->vw_smode.mode == VT_PROCESS) { 437 ret = vt_window_postswitch(vw); 438 } 439 return (ret); 440 } 441 442 /* Switch window. */ 443 static int 444 vt_proc_window_switch(struct vt_window *vw) 445 { 446 struct vt_window *curvw; 447 struct vt_device *vd; 448 int ret; 449 450 vd = vw->vw_device; 451 curvw = vd->vd_curwindow; 452 453 if (curvw->vw_flags & VWF_VTYLOCK) 454 return (EBUSY); 455 456 /* Ask current process permission to switch away. */ 457 if (curvw->vw_smode.mode == VT_PROCESS) { 458 DPRINTF(30, "%s: VT_PROCESS ", __func__); 459 if (vt_proc_alive(curvw) == FALSE) { 460 DPRINTF(30, "Dead. Cleaning."); 461 /* Dead */ 462 } else { 463 DPRINTF(30, "%s: Signaling process.\n", __func__); 464 /* Alive, try to ask him. */ 465 ret = vt_window_preswitch(vw, curvw); 466 /* Wait for process answer or timeout. */ 467 return (ret); 468 } 469 DPRINTF(30, "\n"); 470 } 471 472 ret = vt_late_window_switch(vw); 473 return (ret); 474 } 475 476 /* Switch window ignoring process locking. */ 477 static int 478 vt_window_switch(struct vt_window *vw) 479 { 480 struct vt_device *vd = vw->vw_device; 481 struct vt_window *curvw = vd->vd_curwindow; 482 keyboard_t *kbd; 483 484 VT_LOCK(vd); 485 if (curvw == vw) { 486 /* Nothing to do. */ 487 VT_UNLOCK(vd); 488 return (0); 489 } 490 if (!(vw->vw_flags & (VWF_OPENED|VWF_CONSOLE))) { 491 VT_UNLOCK(vd); 492 return (EINVAL); 493 } 494 495 vt_suspend_flush_timer(vd); 496 497 vd->vd_curwindow = vw; 498 vd->vd_flags |= VDF_INVALID; 499 cv_broadcast(&vd->vd_winswitch); 500 VT_UNLOCK(vd); 501 502 if (vd->vd_driver->vd_postswitch) 503 vd->vd_driver->vd_postswitch(vd); 504 505 vt_resume_flush_timer(vd, 0); 506 507 /* Restore per-window keyboard mode. */ 508 mtx_lock(&Giant); 509 kbd = kbd_get_keyboard(vd->vd_keyboard); 510 if (kbd != NULL) { 511 if (curvw->vw_kbdmode == K_XLATE) 512 vt_save_kbd_state(curvw, kbd); 513 514 vt_update_kbd_mode(vw, kbd); 515 vt_update_kbd_state(vw, kbd); 516 } 517 mtx_unlock(&Giant); 518 DPRINTF(10, "%s(ttyv%d) done\n", __func__, vw->vw_number); 519 520 return (0); 521 } 522 523 static inline void 524 vt_termsize(struct vt_device *vd, struct vt_font *vf, term_pos_t *size) 525 { 526 527 size->tp_row = vd->vd_height; 528 size->tp_col = vd->vd_width; 529 if (vf != NULL) { 530 size->tp_row /= vf->vf_height; 531 size->tp_col /= vf->vf_width; 532 } 533 } 534 535 static inline void 536 vt_winsize(struct vt_device *vd, struct vt_font *vf, struct winsize *size) 537 { 538 539 size->ws_row = size->ws_ypixel = vd->vd_height; 540 size->ws_col = size->ws_xpixel = vd->vd_width; 541 if (vf != NULL) { 542 size->ws_row /= vf->vf_height; 543 size->ws_col /= vf->vf_width; 544 } 545 } 546 547 static inline void 548 vt_compute_drawable_area(struct vt_window *vw) 549 { 550 struct vt_device *vd; 551 struct vt_font *vf; 552 553 vd = vw->vw_device; 554 555 if (vw->vw_font == NULL) { 556 vw->vw_draw_area.tr_begin.tp_col = 0; 557 vw->vw_draw_area.tr_begin.tp_row = 0; 558 vw->vw_draw_area.tr_end.tp_col = vd->vd_width; 559 vw->vw_draw_area.tr_end.tp_row = vd->vd_height; 560 return; 561 } 562 563 vf = vw->vw_font; 564 565 /* 566 * Compute the drawable area, so that the text is centered on 567 * the screen. 568 */ 569 570 vw->vw_draw_area.tr_begin.tp_col = (vd->vd_width % vf->vf_width) / 2; 571 vw->vw_draw_area.tr_begin.tp_row = (vd->vd_height % vf->vf_height) / 2; 572 vw->vw_draw_area.tr_end.tp_col = vw->vw_draw_area.tr_begin.tp_col + 573 vd->vd_width / vf->vf_width * vf->vf_width; 574 vw->vw_draw_area.tr_end.tp_row = vw->vw_draw_area.tr_begin.tp_row + 575 vd->vd_height / vf->vf_height * vf->vf_height; 576 } 577 578 static void 579 vt_scroll(struct vt_window *vw, int offset, int whence) 580 { 581 int diff; 582 term_pos_t size; 583 584 if ((vw->vw_flags & VWF_SCROLL) == 0) 585 return; 586 587 vt_termsize(vw->vw_device, vw->vw_font, &size); 588 589 diff = vthistory_seek(&vw->vw_buf, offset, whence); 590 if (diff) 591 vw->vw_device->vd_flags |= VDF_INVALID; 592 vt_resume_flush_timer(vw->vw_device, 0); 593 } 594 595 static int 596 vt_machine_kbdevent(int c) 597 { 598 599 switch (c) { 600 case SPCLKEY | DBG: /* kbdmap(5) keyword `debug`. */ 601 if (vt_kbd_debug) 602 kdb_enter(KDB_WHY_BREAK, "manual escape to debugger"); 603 return (1); 604 case SPCLKEY | HALT: /* kbdmap(5) keyword `halt`. */ 605 if (vt_kbd_halt) 606 shutdown_nice(RB_HALT); 607 return (1); 608 case SPCLKEY | PASTE: /* kbdmap(5) keyword `paste`. */ 609 #ifndef SC_NO_CUTPASTE 610 /* Insert text from cut-paste buffer. */ 611 vt_mouse_paste(); 612 #endif 613 break; 614 case SPCLKEY | PDWN: /* kbdmap(5) keyword `pdwn`. */ 615 if (vt_kbd_poweroff) 616 shutdown_nice(RB_HALT|RB_POWEROFF); 617 return (1); 618 case SPCLKEY | PNC: /* kbdmap(5) keyword `panic`. */ 619 /* 620 * Request to immediate panic if sysctl 621 * kern.vt.enable_panic_key allow it. 622 */ 623 if (vt_kbd_panic) 624 panic("Forced by the panic key"); 625 return (1); 626 case SPCLKEY | RBT: /* kbdmap(5) keyword `boot`. */ 627 if (vt_kbd_reboot) 628 shutdown_nice(RB_AUTOBOOT); 629 return (1); 630 case SPCLKEY | SPSC: /* kbdmap(5) keyword `spsc`. */ 631 /* Force activatation/deactivation of the screen saver. */ 632 /* TODO */ 633 return (1); 634 case SPCLKEY | STBY: /* XXX Not present in kbdcontrol parser. */ 635 /* Put machine into Stand-By mode. */ 636 power_pm_suspend(POWER_SLEEP_STATE_STANDBY); 637 return (1); 638 case SPCLKEY | SUSP: /* kbdmap(5) keyword `susp`. */ 639 /* Suspend machine. */ 640 power_pm_suspend(POWER_SLEEP_STATE_SUSPEND); 641 return (1); 642 }; 643 644 return (0); 645 } 646 647 static void 648 vt_scrollmode_kbdevent(struct vt_window *vw, int c, int console) 649 { 650 struct vt_device *vd; 651 term_pos_t size; 652 653 vd = vw->vw_device; 654 /* Only special keys handled in ScrollLock mode */ 655 if ((c & SPCLKEY) == 0) 656 return; 657 658 c &= ~SPCLKEY; 659 660 if (console == 0) { 661 if (c >= F_SCR && c <= MIN(L_SCR, F_SCR + VT_MAXWINDOWS - 1)) { 662 vw = vd->vd_windows[c - F_SCR]; 663 if (vw != NULL) 664 vt_proc_window_switch(vw); 665 return; 666 } 667 VT_LOCK(vd); 668 } 669 670 switch (c) { 671 case SLK: { 672 /* Turn scrolling off. */ 673 vt_scroll(vw, 0, VHS_END); 674 VTBUF_SLCK_DISABLE(&vw->vw_buf); 675 vw->vw_flags &= ~VWF_SCROLL; 676 break; 677 } 678 case FKEY | F(49): /* Home key. */ 679 vt_scroll(vw, 0, VHS_SET); 680 break; 681 case FKEY | F(50): /* Arrow up. */ 682 vt_scroll(vw, -1, VHS_CUR); 683 break; 684 case FKEY | F(51): /* Page up. */ 685 vt_termsize(vd, vw->vw_font, &size); 686 vt_scroll(vw, -size.tp_row, VHS_CUR); 687 break; 688 case FKEY | F(57): /* End key. */ 689 vt_scroll(vw, 0, VHS_END); 690 break; 691 case FKEY | F(58): /* Arrow down. */ 692 vt_scroll(vw, 1, VHS_CUR); 693 break; 694 case FKEY | F(59): /* Page down. */ 695 vt_termsize(vd, vw->vw_font, &size); 696 vt_scroll(vw, size.tp_row, VHS_CUR); 697 break; 698 } 699 700 if (console == 0) 701 VT_UNLOCK(vd); 702 } 703 704 static int 705 vt_processkey(keyboard_t *kbd, struct vt_device *vd, int c) 706 { 707 struct vt_window *vw = vd->vd_curwindow; 708 709 #if VT_ALT_TO_ESC_HACK 710 if (c & RELKEY) { 711 switch (c & ~RELKEY) { 712 case (SPCLKEY | RALT): 713 if (vt_enable_altgr != 0) 714 break; 715 case (SPCLKEY | LALT): 716 vd->vd_kbstate &= ~ALKED; 717 } 718 /* Other keys ignored for RELKEY event. */ 719 return (0); 720 } else { 721 switch (c & ~RELKEY) { 722 case (SPCLKEY | RALT): 723 if (vt_enable_altgr != 0) 724 break; 725 case (SPCLKEY | LALT): 726 vd->vd_kbstate |= ALKED; 727 } 728 } 729 #else 730 if (c & RELKEY) 731 /* Other keys ignored for RELKEY event. */ 732 return (0); 733 #endif 734 735 if (vt_machine_kbdevent(c)) 736 return (0); 737 738 if (vw->vw_flags & VWF_SCROLL) { 739 vt_scrollmode_kbdevent(vw, c, 0/* Not a console */); 740 /* Scroll mode keys handled, nothing to do more. */ 741 return (0); 742 } 743 744 if (c & SPCLKEY) { 745 c &= ~SPCLKEY; 746 747 if (c >= F_SCR && c <= MIN(L_SCR, F_SCR + VT_MAXWINDOWS - 1)) { 748 vw = vd->vd_windows[c - F_SCR]; 749 if (vw != NULL) 750 vt_proc_window_switch(vw); 751 return (0); 752 } 753 754 switch (c) { 755 case NEXT: 756 /* Switch to next 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 PREV: 763 /* Switch to previous VT. */ 764 c = (vw->vw_number - 1) % VT_MAXWINDOWS; 765 vw = vd->vd_windows[c]; 766 if (vw != NULL) 767 vt_proc_window_switch(vw); 768 return (0); 769 case SLK: { 770 vt_save_kbd_state(vw, kbd); 771 VT_LOCK(vd); 772 if (vw->vw_kbdstate & SLKED) { 773 /* Turn scrolling on. */ 774 vw->vw_flags |= VWF_SCROLL; 775 VTBUF_SLCK_ENABLE(&vw->vw_buf); 776 } else { 777 /* Turn scrolling off. */ 778 vw->vw_flags &= ~VWF_SCROLL; 779 VTBUF_SLCK_DISABLE(&vw->vw_buf); 780 vt_scroll(vw, 0, VHS_END); 781 } 782 VT_UNLOCK(vd); 783 break; 784 } 785 case FKEY | F(1): case FKEY | F(2): case FKEY | F(3): 786 case FKEY | F(4): case FKEY | F(5): case FKEY | F(6): 787 case FKEY | F(7): case FKEY | F(8): case FKEY | F(9): 788 case FKEY | F(10): case FKEY | F(11): case FKEY | F(12): 789 /* F1 through F12 keys. */ 790 terminal_input_special(vw->vw_terminal, 791 TKEY_F1 + c - (FKEY | F(1))); 792 break; 793 case FKEY | F(49): /* Home key. */ 794 terminal_input_special(vw->vw_terminal, TKEY_HOME); 795 break; 796 case FKEY | F(50): /* Arrow up. */ 797 terminal_input_special(vw->vw_terminal, TKEY_UP); 798 break; 799 case FKEY | F(51): /* Page up. */ 800 terminal_input_special(vw->vw_terminal, TKEY_PAGE_UP); 801 break; 802 case FKEY | F(53): /* Arrow left. */ 803 terminal_input_special(vw->vw_terminal, TKEY_LEFT); 804 break; 805 case FKEY | F(55): /* Arrow right. */ 806 terminal_input_special(vw->vw_terminal, TKEY_RIGHT); 807 break; 808 case FKEY | F(57): /* End key. */ 809 terminal_input_special(vw->vw_terminal, TKEY_END); 810 break; 811 case FKEY | F(58): /* Arrow down. */ 812 terminal_input_special(vw->vw_terminal, TKEY_DOWN); 813 break; 814 case FKEY | F(59): /* Page down. */ 815 terminal_input_special(vw->vw_terminal, TKEY_PAGE_DOWN); 816 break; 817 case FKEY | F(60): /* Insert key. */ 818 terminal_input_special(vw->vw_terminal, TKEY_INSERT); 819 break; 820 case FKEY | F(61): /* Delete key. */ 821 terminal_input_special(vw->vw_terminal, TKEY_DELETE); 822 break; 823 } 824 } else if (KEYFLAGS(c) == 0) { 825 /* Don't do UTF-8 conversion when doing raw mode. */ 826 if (vw->vw_kbdmode == K_XLATE) { 827 #if VT_ALT_TO_ESC_HACK 828 if (vd->vd_kbstate & ALKED) { 829 /* 830 * Prepend ESC sequence if one of ALT keys down. 831 */ 832 terminal_input_char(vw->vw_terminal, 0x1b); 833 } 834 #endif 835 #if defined(KDB) 836 kdb_alt_break(c, &vd->vd_altbrk); 837 #endif 838 terminal_input_char(vw->vw_terminal, KEYCHAR(c)); 839 } else 840 terminal_input_raw(vw->vw_terminal, c); 841 } 842 return (0); 843 } 844 845 static int 846 vt_kbdevent(keyboard_t *kbd, int event, void *arg) 847 { 848 struct vt_device *vd = arg; 849 int c; 850 851 switch (event) { 852 case KBDIO_KEYINPUT: 853 break; 854 case KBDIO_UNLOADING: 855 mtx_lock(&Giant); 856 vd->vd_keyboard = -1; 857 kbd_release(kbd, (void *)vd); 858 mtx_unlock(&Giant); 859 return (0); 860 default: 861 return (EINVAL); 862 } 863 864 while ((c = kbdd_read_char(kbd, 0)) != NOKEY) 865 vt_processkey(kbd, vd, c); 866 867 return (0); 868 } 869 870 static int 871 vt_allocate_keyboard(struct vt_device *vd) 872 { 873 int idx0, idx; 874 keyboard_t *k0, *k; 875 keyboard_info_t ki; 876 877 idx0 = kbd_allocate("kbdmux", -1, vd, vt_kbdevent, vd); 878 if (idx0 >= 0) { 879 DPRINTF(20, "%s: kbdmux allocated, idx = %d\n", __func__, idx0); 880 k0 = kbd_get_keyboard(idx0); 881 882 for (idx = kbd_find_keyboard2("*", -1, 0); 883 idx != -1; 884 idx = kbd_find_keyboard2("*", -1, idx + 1)) { 885 k = kbd_get_keyboard(idx); 886 887 if (idx == idx0 || KBD_IS_BUSY(k)) 888 continue; 889 890 bzero(&ki, sizeof(ki)); 891 strncpy(ki.kb_name, k->kb_name, sizeof(ki.kb_name)); 892 ki.kb_name[sizeof(ki.kb_name) - 1] = '\0'; 893 ki.kb_unit = k->kb_unit; 894 895 kbdd_ioctl(k0, KBADDKBD, (caddr_t) &ki); 896 } 897 } else { 898 DPRINTF(20, "%s: no kbdmux allocated\n", __func__); 899 idx0 = kbd_allocate("*", -1, vd, vt_kbdevent, vd); 900 if (idx0 < 0) { 901 DPRINTF(10, "%s: No keyboard found.\n", __func__); 902 return (-1); 903 } 904 } 905 vd->vd_keyboard = idx0; 906 DPRINTF(20, "%s: vd_keyboard = %d\n", __func__, vd->vd_keyboard); 907 908 return (idx0); 909 } 910 911 static void 912 vtterm_bell(struct terminal *tm) 913 { 914 struct vt_window *vw = tm->tm_softc; 915 struct vt_device *vd = vw->vw_device; 916 917 if (!vt_enable_bell) 918 return; 919 920 if (vd->vd_flags & VDF_QUIET_BELL) 921 return; 922 923 sysbeep(1193182 / VT_BELLPITCH, VT_BELLDURATION); 924 } 925 926 static void 927 vtterm_beep(struct terminal *tm, u_int param) 928 { 929 u_int freq, period; 930 931 if (!vt_enable_bell) 932 return; 933 934 if ((param == 0) || ((param & 0xffff) == 0)) { 935 vtterm_bell(tm); 936 return; 937 } 938 939 period = ((param >> 16) & 0xffff) * hz / 1000; 940 freq = 1193182 / (param & 0xffff); 941 942 sysbeep(freq, period); 943 } 944 945 static void 946 vtterm_cursor(struct terminal *tm, const term_pos_t *p) 947 { 948 struct vt_window *vw = tm->tm_softc; 949 950 vtbuf_cursor_position(&vw->vw_buf, p); 951 vt_resume_flush_timer(vw->vw_device, 0); 952 } 953 954 static void 955 vtterm_putchar(struct terminal *tm, const term_pos_t *p, term_char_t c) 956 { 957 struct vt_window *vw = tm->tm_softc; 958 959 vtbuf_putchar(&vw->vw_buf, p, c); 960 vt_resume_flush_timer(vw->vw_device, 0); 961 } 962 963 static void 964 vtterm_fill(struct terminal *tm, const term_rect_t *r, term_char_t c) 965 { 966 struct vt_window *vw = tm->tm_softc; 967 968 vtbuf_fill_locked(&vw->vw_buf, r, c); 969 vt_resume_flush_timer(vw->vw_device, 0); 970 } 971 972 static void 973 vtterm_copy(struct terminal *tm, const term_rect_t *r, 974 const term_pos_t *p) 975 { 976 struct vt_window *vw = tm->tm_softc; 977 978 vtbuf_copy(&vw->vw_buf, r, p); 979 vt_resume_flush_timer(vw->vw_device, 0); 980 } 981 982 static void 983 vtterm_param(struct terminal *tm, int cmd, unsigned int arg) 984 { 985 struct vt_window *vw = tm->tm_softc; 986 987 switch (cmd) { 988 case TP_SHOWCURSOR: 989 vtbuf_cursor_visibility(&vw->vw_buf, arg); 990 vt_resume_flush_timer(vw->vw_device, 0); 991 break; 992 case TP_MOUSE: 993 vw->vw_mouse_level = arg; 994 break; 995 } 996 } 997 998 void 999 vt_determine_colors(term_char_t c, int cursor, 1000 term_color_t *fg, term_color_t *bg) 1001 { 1002 term_color_t tmp; 1003 int invert; 1004 1005 invert = 0; 1006 1007 *fg = TCHAR_FGCOLOR(c); 1008 if (TCHAR_FORMAT(c) & TF_BOLD) 1009 *fg = TCOLOR_LIGHT(*fg); 1010 *bg = TCHAR_BGCOLOR(c); 1011 1012 if (TCHAR_FORMAT(c) & TF_REVERSE) 1013 invert ^= 1; 1014 if (cursor) 1015 invert ^= 1; 1016 1017 if (invert) { 1018 tmp = *fg; 1019 *fg = *bg; 1020 *bg = tmp; 1021 } 1022 } 1023 1024 #ifndef SC_NO_CUTPASTE 1025 int 1026 vt_is_cursor_in_area(const struct vt_device *vd, const term_rect_t *area) 1027 { 1028 unsigned int mx, my, x1, y1, x2, y2; 1029 1030 /* 1031 * We use the cursor position saved during the current refresh, 1032 * in case the cursor moved since. 1033 */ 1034 mx = vd->vd_mx_drawn + vd->vd_curwindow->vw_draw_area.tr_begin.tp_col; 1035 my = vd->vd_my_drawn + vd->vd_curwindow->vw_draw_area.tr_begin.tp_row; 1036 1037 x1 = area->tr_begin.tp_col; 1038 y1 = area->tr_begin.tp_row; 1039 x2 = area->tr_end.tp_col; 1040 y2 = area->tr_end.tp_row; 1041 1042 if (((mx >= x1 && x2 - 1 >= mx) || 1043 (mx < x1 && mx + vd->vd_mcursor->width >= x1)) && 1044 ((my >= y1 && y2 - 1 >= my) || 1045 (my < y1 && my + vd->vd_mcursor->height >= y1))) 1046 return (1); 1047 1048 return (0); 1049 } 1050 1051 static void 1052 vt_mark_mouse_position_as_dirty(struct vt_device *vd) 1053 { 1054 term_rect_t area; 1055 struct vt_window *vw; 1056 struct vt_font *vf; 1057 int x, y; 1058 1059 vw = vd->vd_curwindow; 1060 vf = vw->vw_font; 1061 1062 x = vd->vd_mx_drawn; 1063 y = vd->vd_my_drawn; 1064 1065 if (vf != NULL) { 1066 area.tr_begin.tp_col = x / vf->vf_width; 1067 area.tr_begin.tp_row = y / vf->vf_height; 1068 area.tr_end.tp_col = 1069 ((x + vd->vd_mcursor->width) / vf->vf_width) + 1; 1070 area.tr_end.tp_row = 1071 ((y + vd->vd_mcursor->height) / vf->vf_height) + 1; 1072 } else { 1073 /* 1074 * No font loaded (ie. vt_vga operating in textmode). 1075 * 1076 * FIXME: This fake area needs to be revisited once the 1077 * mouse cursor is supported in vt_vga's textmode. 1078 */ 1079 area.tr_begin.tp_col = x; 1080 area.tr_begin.tp_row = y; 1081 area.tr_end.tp_col = x + 2; 1082 area.tr_end.tp_row = y + 2; 1083 } 1084 1085 vtbuf_dirty(&vw->vw_buf, &area); 1086 } 1087 #endif 1088 1089 static int 1090 vt_flush(struct vt_device *vd) 1091 { 1092 struct vt_window *vw; 1093 struct vt_font *vf; 1094 term_rect_t tarea; 1095 term_pos_t size; 1096 #ifndef SC_NO_CUTPASTE 1097 int cursor_was_shown, cursor_moved; 1098 #endif 1099 1100 vw = vd->vd_curwindow; 1101 if (vw == NULL) 1102 return (0); 1103 1104 if (vd->vd_flags & VDF_SPLASH || vw->vw_flags & VWF_BUSY) 1105 return (0); 1106 1107 vf = vw->vw_font; 1108 if (((vd->vd_flags & VDF_TEXTMODE) == 0) && (vf == NULL)) 1109 return (0); 1110 1111 #ifndef SC_NO_CUTPASTE 1112 cursor_was_shown = vd->vd_mshown; 1113 cursor_moved = (vd->vd_mx != vd->vd_mx_drawn || 1114 vd->vd_my != vd->vd_my_drawn); 1115 1116 /* Check if the cursor should be displayed or not. */ 1117 if ((vd->vd_flags & VDF_MOUSECURSOR) && /* Mouse support enabled. */ 1118 !(vw->vw_flags & VWF_MOUSE_HIDE) && /* Cursor displayed. */ 1119 !kdb_active && panicstr == NULL) { /* DDB inactive. */ 1120 vd->vd_mshown = 1; 1121 } else { 1122 vd->vd_mshown = 0; 1123 } 1124 1125 /* 1126 * If the cursor changed display state or moved, we must mark 1127 * the old position as dirty, so that it's erased. 1128 */ 1129 if (cursor_was_shown != vd->vd_mshown || 1130 (vd->vd_mshown && cursor_moved)) 1131 vt_mark_mouse_position_as_dirty(vd); 1132 1133 /* 1134 * Save position of the mouse cursor. It's used by backends to 1135 * know where to draw the cursor and during the next refresh to 1136 * erase the previous position. 1137 */ 1138 vd->vd_mx_drawn = vd->vd_mx; 1139 vd->vd_my_drawn = vd->vd_my; 1140 1141 /* 1142 * If the cursor is displayed and has moved since last refresh, 1143 * mark the new position as dirty. 1144 */ 1145 if (vd->vd_mshown && cursor_moved) 1146 vt_mark_mouse_position_as_dirty(vd); 1147 #endif 1148 1149 vtbuf_undirty(&vw->vw_buf, &tarea); 1150 vt_termsize(vd, vf, &size); 1151 1152 /* Force a full redraw when the screen contents are invalid. */ 1153 if (vd->vd_flags & VDF_INVALID) { 1154 tarea.tr_begin.tp_row = tarea.tr_begin.tp_col = 0; 1155 tarea.tr_end = size; 1156 1157 vd->vd_flags &= ~VDF_INVALID; 1158 } 1159 1160 if (tarea.tr_begin.tp_col < tarea.tr_end.tp_col) { 1161 vd->vd_driver->vd_bitblt_text(vd, vw, &tarea); 1162 return (1); 1163 } 1164 1165 return (0); 1166 } 1167 1168 static void 1169 vt_timer(void *arg) 1170 { 1171 struct vt_device *vd; 1172 int changed; 1173 1174 vd = arg; 1175 /* Update screen if required. */ 1176 changed = vt_flush(vd); 1177 1178 /* Schedule for next update. */ 1179 if (changed) 1180 vt_schedule_flush(vd, 0); 1181 else 1182 vd->vd_timer_armed = 0; 1183 } 1184 1185 static void 1186 vtterm_done(struct terminal *tm) 1187 { 1188 struct vt_window *vw = tm->tm_softc; 1189 struct vt_device *vd = vw->vw_device; 1190 1191 if (kdb_active || panicstr != NULL) { 1192 /* Switch to the debugger. */ 1193 if (vd->vd_curwindow != vw) { 1194 vd->vd_curwindow = vw; 1195 vd->vd_flags |= VDF_INVALID; 1196 if (vd->vd_driver->vd_postswitch) 1197 vd->vd_driver->vd_postswitch(vd); 1198 } 1199 vd->vd_flags &= ~VDF_SPLASH; 1200 vt_flush(vd); 1201 } else if (!(vd->vd_flags & VDF_ASYNC)) { 1202 vt_flush(vd); 1203 } 1204 } 1205 1206 #ifdef DEV_SPLASH 1207 static void 1208 vtterm_splash(struct vt_device *vd) 1209 { 1210 vt_axis_t top, left; 1211 1212 /* Display a nice boot splash. */ 1213 if (!(vd->vd_flags & VDF_TEXTMODE) && (boothowto & RB_MUTE)) { 1214 1215 top = (vd->vd_height - vt_logo_height) / 2; 1216 left = (vd->vd_width - vt_logo_width) / 2; 1217 switch (vt_logo_depth) { 1218 case 1: 1219 /* XXX: Unhardcode colors! */ 1220 vd->vd_driver->vd_bitblt_bmp(vd, vd->vd_curwindow, 1221 vt_logo_image, NULL, vt_logo_width, vt_logo_height, 1222 left, top, TC_WHITE, TC_BLACK); 1223 } 1224 vd->vd_flags |= VDF_SPLASH; 1225 } 1226 } 1227 #endif 1228 1229 1230 static void 1231 vtterm_cnprobe(struct terminal *tm, struct consdev *cp) 1232 { 1233 struct vt_driver *vtd, **vtdlist, *vtdbest = NULL; 1234 struct vt_window *vw = tm->tm_softc; 1235 struct vt_device *vd = vw->vw_device; 1236 struct winsize wsz; 1237 term_attr_t attr; 1238 term_char_t c; 1239 1240 if (!vty_enabled(VTY_VT)) 1241 return; 1242 1243 if (vd->vd_flags & VDF_INITIALIZED) 1244 /* Initialization already done. */ 1245 return; 1246 1247 SET_FOREACH(vtdlist, vt_drv_set) { 1248 vtd = *vtdlist; 1249 if (vtd->vd_probe == NULL) 1250 continue; 1251 if (vtd->vd_probe(vd) == CN_DEAD) 1252 continue; 1253 if ((vtdbest == NULL) || 1254 (vtd->vd_priority > vtdbest->vd_priority)) 1255 vtdbest = vtd; 1256 } 1257 if (vtdbest == NULL) { 1258 cp->cn_pri = CN_DEAD; 1259 vd->vd_flags |= VDF_DEAD; 1260 } else { 1261 vd->vd_driver = vtdbest; 1262 cp->cn_pri = vd->vd_driver->vd_init(vd); 1263 } 1264 1265 /* Check if driver's vt_init return CN_DEAD. */ 1266 if (cp->cn_pri == CN_DEAD) { 1267 vd->vd_flags |= VDF_DEAD; 1268 } 1269 1270 /* Initialize any early-boot keyboard drivers */ 1271 kbd_configure(KB_CONF_PROBE_ONLY); 1272 1273 vd->vd_unit = atomic_fetchadd_int(&vt_unit, 1); 1274 vd->vd_windows[VT_CONSWINDOW] = vw; 1275 sprintf(cp->cn_name, "ttyv%r", VT_UNIT(vw)); 1276 1277 /* Attach default font if not in TEXTMODE. */ 1278 if ((vd->vd_flags & VDF_TEXTMODE) == 0) { 1279 vw->vw_font = vtfont_ref(&vt_font_default); 1280 vt_compute_drawable_area(vw); 1281 } 1282 1283 /* 1284 * The original screen size was faked (_VTDEFW x _VTDEFH). Now 1285 * that we have the real viewable size, fix it in the static 1286 * buffer. 1287 */ 1288 if (vd->vd_width != 0 && vd->vd_height != 0) 1289 vt_termsize(vd, vw->vw_font, &vw->vw_buf.vb_scr_size); 1290 1291 vtbuf_init_early(&vw->vw_buf); 1292 vt_winsize(vd, vw->vw_font, &wsz); 1293 c = (boothowto & RB_MUTE) == 0 ? TERMINAL_KERN_ATTR : 1294 TERMINAL_NORM_ATTR; 1295 attr.ta_format = TCHAR_FORMAT(c); 1296 attr.ta_fgcolor = TCHAR_FGCOLOR(c); 1297 attr.ta_bgcolor = TCHAR_BGCOLOR(c); 1298 terminal_set_winsize_blank(tm, &wsz, 1, &attr); 1299 1300 if (vtdbest != NULL) { 1301 #ifdef DEV_SPLASH 1302 vtterm_splash(vd); 1303 #endif 1304 vd->vd_flags |= VDF_INITIALIZED; 1305 } 1306 } 1307 1308 static int 1309 vtterm_cngetc(struct terminal *tm) 1310 { 1311 struct vt_window *vw = tm->tm_softc; 1312 struct vt_device *vd = vw->vw_device; 1313 keyboard_t *kbd; 1314 u_int c; 1315 1316 if (vw->vw_kbdsq && *vw->vw_kbdsq) 1317 return (*vw->vw_kbdsq++); 1318 1319 /* Make sure the splash screen is not there. */ 1320 if (vd->vd_flags & VDF_SPLASH) { 1321 /* Remove splash */ 1322 vd->vd_flags &= ~VDF_SPLASH; 1323 /* Mark screen as invalid to force update */ 1324 vd->vd_flags |= VDF_INVALID; 1325 vt_flush(vd); 1326 } 1327 1328 /* Stripped down keyboard handler. */ 1329 kbd = kbd_get_keyboard(vd->vd_keyboard); 1330 if (kbd == NULL) 1331 return (-1); 1332 1333 /* Force keyboard input mode to K_XLATE */ 1334 vw->vw_kbdmode = K_XLATE; 1335 vt_update_kbd_mode(vw, kbd); 1336 1337 /* Switch the keyboard to polling to make it work here. */ 1338 kbdd_poll(kbd, TRUE); 1339 c = kbdd_read_char(kbd, 0); 1340 kbdd_poll(kbd, FALSE); 1341 if (c & RELKEY) 1342 return (-1); 1343 1344 if (vw->vw_flags & VWF_SCROLL) { 1345 vt_scrollmode_kbdevent(vw, c, 1/* Console mode */); 1346 vt_flush(vd); 1347 return (-1); 1348 } 1349 1350 /* Stripped down handling of vt_kbdevent(), without locking, etc. */ 1351 if (c & SPCLKEY) { 1352 switch (c) { 1353 case SPCLKEY | SLK: 1354 vt_save_kbd_state(vw, kbd); 1355 if (vw->vw_kbdstate & SLKED) { 1356 /* Turn scrolling on. */ 1357 vw->vw_flags |= VWF_SCROLL; 1358 VTBUF_SLCK_ENABLE(&vw->vw_buf); 1359 } else { 1360 /* Turn scrolling off. */ 1361 vt_scroll(vw, 0, VHS_END); 1362 vw->vw_flags &= ~VWF_SCROLL; 1363 VTBUF_SLCK_DISABLE(&vw->vw_buf); 1364 } 1365 break; 1366 /* XXX: KDB can handle history. */ 1367 case SPCLKEY | FKEY | F(50): /* Arrow up. */ 1368 vw->vw_kbdsq = "\x1b[A"; 1369 break; 1370 case SPCLKEY | FKEY | F(58): /* Arrow down. */ 1371 vw->vw_kbdsq = "\x1b[B"; 1372 break; 1373 case SPCLKEY | FKEY | F(55): /* Arrow right. */ 1374 vw->vw_kbdsq = "\x1b[C"; 1375 break; 1376 case SPCLKEY | FKEY | F(53): /* Arrow left. */ 1377 vw->vw_kbdsq = "\x1b[D"; 1378 break; 1379 } 1380 1381 /* Force refresh to make scrollback work. */ 1382 vt_flush(vd); 1383 } else if (KEYFLAGS(c) == 0) { 1384 return (KEYCHAR(c)); 1385 } 1386 1387 if (vw->vw_kbdsq && *vw->vw_kbdsq) 1388 return (*vw->vw_kbdsq++); 1389 1390 return (-1); 1391 } 1392 1393 static void 1394 vtterm_cngrab(struct terminal *tm) 1395 { 1396 struct vt_device *vd; 1397 struct vt_window *vw; 1398 keyboard_t *kbd; 1399 1400 vw = tm->tm_softc; 1401 vd = vw->vw_device; 1402 1403 if (!cold) 1404 vt_window_switch(vw); 1405 1406 kbd = kbd_get_keyboard(vd->vd_keyboard); 1407 if (kbd == NULL) 1408 return; 1409 1410 if (vw->vw_grabbed++ > 0) 1411 return; 1412 1413 /* 1414 * Make sure the keyboard is accessible even when the kbd device 1415 * driver is disabled. 1416 */ 1417 kbdd_enable(kbd); 1418 1419 /* We shall always use the keyboard in the XLATE mode here. */ 1420 vw->vw_prev_kbdmode = vw->vw_kbdmode; 1421 vw->vw_kbdmode = K_XLATE; 1422 vt_update_kbd_mode(vw, kbd); 1423 1424 kbdd_poll(kbd, TRUE); 1425 } 1426 1427 static void 1428 vtterm_cnungrab(struct terminal *tm) 1429 { 1430 struct vt_device *vd; 1431 struct vt_window *vw; 1432 keyboard_t *kbd; 1433 1434 vw = tm->tm_softc; 1435 vd = vw->vw_device; 1436 1437 kbd = kbd_get_keyboard(vd->vd_keyboard); 1438 if (kbd == NULL) 1439 return; 1440 1441 if (--vw->vw_grabbed > 0) 1442 return; 1443 1444 kbdd_poll(kbd, FALSE); 1445 1446 vw->vw_kbdmode = vw->vw_prev_kbdmode; 1447 vt_update_kbd_mode(vw, kbd); 1448 kbdd_disable(kbd); 1449 } 1450 1451 static void 1452 vtterm_opened(struct terminal *tm, int opened) 1453 { 1454 struct vt_window *vw = tm->tm_softc; 1455 struct vt_device *vd = vw->vw_device; 1456 1457 VT_LOCK(vd); 1458 vd->vd_flags &= ~VDF_SPLASH; 1459 if (opened) 1460 vw->vw_flags |= VWF_OPENED; 1461 else { 1462 vw->vw_flags &= ~VWF_OPENED; 1463 /* TODO: finish ACQ/REL */ 1464 } 1465 VT_UNLOCK(vd); 1466 } 1467 1468 static int 1469 vt_set_border(struct vt_window *vw, term_color_t c) 1470 { 1471 struct vt_device *vd = vw->vw_device; 1472 1473 if (vd->vd_driver->vd_drawrect == NULL) 1474 return (ENOTSUP); 1475 1476 /* Top bar. */ 1477 if (vw->vw_draw_area.tr_begin.tp_row > 0) 1478 vd->vd_driver->vd_drawrect(vd, 1479 0, 0, 1480 vd->vd_width - 1, vw->vw_draw_area.tr_begin.tp_row - 1, 1481 1, c); 1482 1483 /* Left bar. */ 1484 if (vw->vw_draw_area.tr_begin.tp_col > 0) 1485 vd->vd_driver->vd_drawrect(vd, 1486 0, 0, 1487 vw->vw_draw_area.tr_begin.tp_col - 1, vd->vd_height - 1, 1488 1, c); 1489 1490 /* Right bar. */ 1491 if (vw->vw_draw_area.tr_end.tp_col < vd->vd_width) 1492 vd->vd_driver->vd_drawrect(vd, 1493 vw->vw_draw_area.tr_end.tp_col - 1, 0, 1494 vd->vd_width - 1, vd->vd_height - 1, 1495 1, c); 1496 1497 /* Bottom bar. */ 1498 if (vw->vw_draw_area.tr_end.tp_row < vd->vd_height) 1499 vd->vd_driver->vd_drawrect(vd, 1500 0, vw->vw_draw_area.tr_end.tp_row - 1, 1501 vd->vd_width - 1, vd->vd_height - 1, 1502 1, c); 1503 1504 return (0); 1505 } 1506 1507 static int 1508 vt_change_font(struct vt_window *vw, struct vt_font *vf) 1509 { 1510 struct vt_device *vd = vw->vw_device; 1511 struct terminal *tm = vw->vw_terminal; 1512 term_pos_t size; 1513 struct winsize wsz; 1514 1515 /* 1516 * Changing fonts. 1517 * 1518 * Changing fonts is a little tricky. We must prevent 1519 * simultaneous access to the device, so we must stop 1520 * the display timer and the terminal from accessing. 1521 * We need to switch fonts and grow our screen buffer. 1522 * 1523 * XXX: Right now the code uses terminal_mute() to 1524 * prevent data from reaching the console driver while 1525 * resizing the screen buffer. This isn't elegant... 1526 */ 1527 1528 VT_LOCK(vd); 1529 if (vw->vw_flags & VWF_BUSY) { 1530 /* Another process is changing the font. */ 1531 VT_UNLOCK(vd); 1532 return (EBUSY); 1533 } 1534 vw->vw_flags |= VWF_BUSY; 1535 VT_UNLOCK(vd); 1536 1537 vt_termsize(vd, vf, &size); 1538 vt_winsize(vd, vf, &wsz); 1539 1540 /* Grow the screen buffer and terminal. */ 1541 terminal_mute(tm, 1); 1542 vtbuf_grow(&vw->vw_buf, &size, vw->vw_buf.vb_history_size); 1543 terminal_set_winsize_blank(tm, &wsz, 0, NULL); 1544 terminal_set_cursor(tm, &vw->vw_buf.vb_cursor); 1545 terminal_mute(tm, 0); 1546 1547 /* Actually apply the font to the current window. */ 1548 VT_LOCK(vd); 1549 if (vw->vw_font != vf && vw->vw_font != NULL && vf != NULL) { 1550 /* 1551 * In case vt_change_font called to update size we don't need 1552 * to update font link. 1553 */ 1554 vtfont_unref(vw->vw_font); 1555 vw->vw_font = vtfont_ref(vf); 1556 } 1557 1558 /* 1559 * Compute the drawable area and move the mouse cursor inside 1560 * it, in case the new area is smaller than the previous one. 1561 */ 1562 vt_compute_drawable_area(vw); 1563 vd->vd_mx = min(vd->vd_mx, 1564 vw->vw_draw_area.tr_end.tp_col - 1565 vw->vw_draw_area.tr_begin.tp_col - 1); 1566 vd->vd_my = min(vd->vd_my, 1567 vw->vw_draw_area.tr_end.tp_row - 1568 vw->vw_draw_area.tr_begin.tp_row - 1); 1569 1570 /* Force a full redraw the next timer tick. */ 1571 if (vd->vd_curwindow == vw) { 1572 vt_set_border(vw, TC_BLACK); 1573 vd->vd_flags |= VDF_INVALID; 1574 vt_resume_flush_timer(vw->vw_device, 0); 1575 } 1576 vw->vw_flags &= ~VWF_BUSY; 1577 VT_UNLOCK(vd); 1578 return (0); 1579 } 1580 1581 static int 1582 vt_proc_alive(struct vt_window *vw) 1583 { 1584 struct proc *p; 1585 1586 if (vw->vw_smode.mode != VT_PROCESS) 1587 return (FALSE); 1588 1589 if (vw->vw_proc) { 1590 if ((p = pfind(vw->vw_pid)) != NULL) 1591 PROC_UNLOCK(p); 1592 if (vw->vw_proc == p) 1593 return (TRUE); 1594 vw->vw_proc = NULL; 1595 vw->vw_smode.mode = VT_AUTO; 1596 DPRINTF(1, "vt controlling process %d died\n", vw->vw_pid); 1597 vw->vw_pid = 0; 1598 } 1599 return (FALSE); 1600 } 1601 1602 static int 1603 signal_vt_rel(struct vt_window *vw) 1604 { 1605 1606 if (vw->vw_smode.mode != VT_PROCESS) 1607 return (FALSE); 1608 if (vw->vw_proc == NULL || vt_proc_alive(vw) == FALSE) { 1609 vw->vw_proc = NULL; 1610 vw->vw_pid = 0; 1611 return (TRUE); 1612 } 1613 vw->vw_flags |= VWF_SWWAIT_REL; 1614 PROC_LOCK(vw->vw_proc); 1615 kern_psignal(vw->vw_proc, vw->vw_smode.relsig); 1616 PROC_UNLOCK(vw->vw_proc); 1617 DPRINTF(1, "sending relsig to %d\n", vw->vw_pid); 1618 return (TRUE); 1619 } 1620 1621 static int 1622 signal_vt_acq(struct vt_window *vw) 1623 { 1624 1625 if (vw->vw_smode.mode != VT_PROCESS) 1626 return (FALSE); 1627 if (vw == vw->vw_device->vd_windows[VT_CONSWINDOW]) 1628 cnavailable(vw->vw_terminal->consdev, FALSE); 1629 if (vw->vw_proc == NULL || vt_proc_alive(vw) == FALSE) { 1630 vw->vw_proc = NULL; 1631 vw->vw_pid = 0; 1632 return (TRUE); 1633 } 1634 vw->vw_flags |= VWF_SWWAIT_ACQ; 1635 PROC_LOCK(vw->vw_proc); 1636 kern_psignal(vw->vw_proc, vw->vw_smode.acqsig); 1637 PROC_UNLOCK(vw->vw_proc); 1638 DPRINTF(1, "sending acqsig to %d\n", vw->vw_pid); 1639 return (TRUE); 1640 } 1641 1642 static int 1643 finish_vt_rel(struct vt_window *vw, int release, int *s) 1644 { 1645 1646 if (vw->vw_flags & VWF_SWWAIT_REL) { 1647 vw->vw_flags &= ~VWF_SWWAIT_REL; 1648 if (release) { 1649 callout_drain(&vw->vw_proc_dead_timer); 1650 vt_late_window_switch(vw->vw_switch_to); 1651 } 1652 return (0); 1653 } 1654 return (EINVAL); 1655 } 1656 1657 static int 1658 finish_vt_acq(struct vt_window *vw) 1659 { 1660 1661 if (vw->vw_flags & VWF_SWWAIT_ACQ) { 1662 vw->vw_flags &= ~VWF_SWWAIT_ACQ; 1663 return (0); 1664 } 1665 return (EINVAL); 1666 } 1667 1668 #ifndef SC_NO_CUTPASTE 1669 static void 1670 vt_mouse_terminput_button(struct vt_device *vd, int button) 1671 { 1672 struct vt_window *vw; 1673 struct vt_font *vf; 1674 char mouseb[6] = "\x1B[M"; 1675 int i, x, y; 1676 1677 vw = vd->vd_curwindow; 1678 vf = vw->vw_font; 1679 1680 /* Translate to char position. */ 1681 x = vd->vd_mx / vf->vf_width; 1682 y = vd->vd_my / vf->vf_height; 1683 /* Avoid overflow. */ 1684 x = MIN(x, 255 - '!'); 1685 y = MIN(y, 255 - '!'); 1686 1687 mouseb[3] = ' ' + button; 1688 mouseb[4] = '!' + x; 1689 mouseb[5] = '!' + y; 1690 1691 for (i = 0; i < sizeof(mouseb); i++) 1692 terminal_input_char(vw->vw_terminal, mouseb[i]); 1693 } 1694 1695 static void 1696 vt_mouse_terminput(struct vt_device *vd, int type, int x, int y, int event, 1697 int cnt) 1698 { 1699 1700 switch (type) { 1701 case MOUSE_BUTTON_EVENT: 1702 if (cnt > 0) { 1703 /* Mouse button pressed. */ 1704 if (event & MOUSE_BUTTON1DOWN) 1705 vt_mouse_terminput_button(vd, 0); 1706 if (event & MOUSE_BUTTON2DOWN) 1707 vt_mouse_terminput_button(vd, 1); 1708 if (event & MOUSE_BUTTON3DOWN) 1709 vt_mouse_terminput_button(vd, 2); 1710 } else { 1711 /* Mouse button released. */ 1712 vt_mouse_terminput_button(vd, 3); 1713 } 1714 break; 1715 #ifdef notyet 1716 case MOUSE_MOTION_EVENT: 1717 if (mouse->u.data.z < 0) { 1718 /* Scroll up. */ 1719 sc_mouse_input_button(vd, 64); 1720 } else if (mouse->u.data.z > 0) { 1721 /* Scroll down. */ 1722 sc_mouse_input_button(vd, 65); 1723 } 1724 break; 1725 #endif 1726 } 1727 } 1728 1729 static void 1730 vt_mouse_paste() 1731 { 1732 term_char_t *buf; 1733 int i, len; 1734 1735 len = VD_PASTEBUFLEN(main_vd); 1736 buf = VD_PASTEBUF(main_vd); 1737 len /= sizeof(term_char_t); 1738 for (i = 0; i < len; i++) { 1739 if (buf[i] == '\0') 1740 continue; 1741 terminal_input_char(main_vd->vd_curwindow->vw_terminal, 1742 buf[i]); 1743 } 1744 } 1745 1746 void 1747 vt_mouse_event(int type, int x, int y, int event, int cnt, int mlevel) 1748 { 1749 struct vt_device *vd; 1750 struct vt_window *vw; 1751 struct vt_font *vf; 1752 term_pos_t size; 1753 int len, mark; 1754 1755 vd = main_vd; 1756 vw = vd->vd_curwindow; 1757 vf = vw->vw_font; 1758 mark = 0; 1759 1760 if (vw->vw_flags & (VWF_MOUSE_HIDE | VWF_GRAPHICS)) 1761 /* 1762 * Either the mouse is disabled, or the window is in 1763 * "graphics mode". The graphics mode is usually set by 1764 * an X server, using the KDSETMODE ioctl. 1765 */ 1766 return; 1767 1768 if (vf == NULL) /* Text mode. */ 1769 return; 1770 1771 /* 1772 * TODO: add flag about pointer position changed, to not redraw chars 1773 * under mouse pointer when nothing changed. 1774 */ 1775 1776 if (vw->vw_mouse_level > 0) 1777 vt_mouse_terminput(vd, type, x, y, event, cnt); 1778 1779 switch (type) { 1780 case MOUSE_ACTION: 1781 case MOUSE_MOTION_EVENT: 1782 /* Movement */ 1783 x += vd->vd_mx; 1784 y += vd->vd_my; 1785 1786 vt_termsize(vd, vf, &size); 1787 1788 /* Apply limits. */ 1789 x = MAX(x, 0); 1790 y = MAX(y, 0); 1791 x = MIN(x, (size.tp_col * vf->vf_width) - 1); 1792 y = MIN(y, (size.tp_row * vf->vf_height) - 1); 1793 1794 vd->vd_mx = x; 1795 vd->vd_my = y; 1796 if (vd->vd_mstate & MOUSE_BUTTON1DOWN) 1797 vtbuf_set_mark(&vw->vw_buf, VTB_MARK_MOVE, 1798 vd->vd_mx / vf->vf_width, 1799 vd->vd_my / vf->vf_height); 1800 1801 vt_resume_flush_timer(vw->vw_device, 0); 1802 return; /* Done */ 1803 case MOUSE_BUTTON_EVENT: 1804 /* Buttons */ 1805 break; 1806 default: 1807 return; /* Done */ 1808 } 1809 1810 switch (event) { 1811 case MOUSE_BUTTON1DOWN: 1812 switch (cnt % 4) { 1813 case 0: /* up */ 1814 mark = VTB_MARK_END; 1815 break; 1816 case 1: /* single click: start cut operation */ 1817 mark = VTB_MARK_START; 1818 break; 1819 case 2: /* double click: cut a word */ 1820 mark = VTB_MARK_WORD; 1821 break; 1822 case 3: /* triple click: cut a line */ 1823 mark = VTB_MARK_ROW; 1824 break; 1825 } 1826 break; 1827 case VT_MOUSE_PASTEBUTTON: 1828 switch (cnt) { 1829 case 0: /* up */ 1830 break; 1831 default: 1832 vt_mouse_paste(); 1833 break; 1834 } 1835 return; /* Done */ 1836 case VT_MOUSE_EXTENDBUTTON: 1837 switch (cnt) { 1838 case 0: /* up */ 1839 if (!(vd->vd_mstate & MOUSE_BUTTON1DOWN)) 1840 mark = VTB_MARK_EXTEND; 1841 else 1842 mark = 0; 1843 break; 1844 default: 1845 mark = VTB_MARK_EXTEND; 1846 break; 1847 } 1848 break; 1849 default: 1850 return; /* Done */ 1851 } 1852 1853 /* Save buttons state. */ 1854 if (cnt > 0) 1855 vd->vd_mstate |= event; 1856 else 1857 vd->vd_mstate &= ~event; 1858 1859 if (vtbuf_set_mark(&vw->vw_buf, mark, vd->vd_mx / vf->vf_width, 1860 vd->vd_my / vf->vf_height) == 1) { 1861 /* 1862 * We have something marked to copy, so update pointer to 1863 * window with selection. 1864 */ 1865 vt_resume_flush_timer(vw->vw_device, 0); 1866 1867 switch (mark) { 1868 case VTB_MARK_END: 1869 case VTB_MARK_WORD: 1870 case VTB_MARK_ROW: 1871 case VTB_MARK_EXTEND: 1872 break; 1873 default: 1874 /* Other types of mark do not require to copy data. */ 1875 return; 1876 } 1877 1878 /* Get current selection size in bytes. */ 1879 len = vtbuf_get_marked_len(&vw->vw_buf); 1880 if (len <= 0) 1881 return; 1882 1883 /* Reallocate buffer only if old one is too small. */ 1884 if (len > VD_PASTEBUFSZ(vd)) { 1885 VD_PASTEBUF(vd) = realloc(VD_PASTEBUF(vd), len, M_VT, 1886 M_WAITOK | M_ZERO); 1887 /* Update buffer size. */ 1888 VD_PASTEBUFSZ(vd) = len; 1889 } 1890 /* Request copy/paste buffer data, no more than `len' */ 1891 vtbuf_extract_marked(&vw->vw_buf, VD_PASTEBUF(vd), 1892 VD_PASTEBUFSZ(vd)); 1893 1894 VD_PASTEBUFLEN(vd) = len; 1895 1896 /* XXX VD_PASTEBUF(vd) have to be freed on shutdown/unload. */ 1897 } 1898 } 1899 1900 void 1901 vt_mouse_state(int show) 1902 { 1903 struct vt_device *vd; 1904 struct vt_window *vw; 1905 1906 vd = main_vd; 1907 vw = vd->vd_curwindow; 1908 1909 switch (show) { 1910 case VT_MOUSE_HIDE: 1911 vw->vw_flags |= VWF_MOUSE_HIDE; 1912 break; 1913 case VT_MOUSE_SHOW: 1914 vw->vw_flags &= ~VWF_MOUSE_HIDE; 1915 break; 1916 } 1917 1918 /* Mark mouse position as dirty. */ 1919 vt_mark_mouse_position_as_dirty(vd); 1920 vt_resume_flush_timer(vw->vw_device, 0); 1921 } 1922 #endif 1923 1924 static int 1925 vtterm_mmap(struct terminal *tm, vm_ooffset_t offset, vm_paddr_t * paddr, 1926 int nprot, vm_memattr_t *memattr) 1927 { 1928 struct vt_window *vw = tm->tm_softc; 1929 struct vt_device *vd = vw->vw_device; 1930 1931 if (vd->vd_driver->vd_fb_mmap) 1932 return (vd->vd_driver->vd_fb_mmap(vd, offset, paddr, nprot, 1933 memattr)); 1934 1935 return (ENXIO); 1936 } 1937 1938 static int 1939 vtterm_ioctl(struct terminal *tm, u_long cmd, caddr_t data, 1940 struct thread *td) 1941 { 1942 struct vt_window *vw = tm->tm_softc; 1943 struct vt_device *vd = vw->vw_device; 1944 keyboard_t *kbd; 1945 int error, i, s; 1946 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 1947 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 1948 int ival; 1949 1950 switch (cmd) { 1951 case _IO('v', 4): 1952 cmd = VT_RELDISP; 1953 break; 1954 case _IO('v', 5): 1955 cmd = VT_ACTIVATE; 1956 break; 1957 case _IO('v', 6): 1958 cmd = VT_WAITACTIVE; 1959 break; 1960 case _IO('K', 20): 1961 cmd = KDSKBSTATE; 1962 break; 1963 case _IO('K', 67): 1964 cmd = KDSETRAD; 1965 break; 1966 case _IO('K', 7): 1967 cmd = KDSKBMODE; 1968 break; 1969 case _IO('K', 8): 1970 cmd = KDMKTONE; 1971 break; 1972 case _IO('K', 63): 1973 cmd = KIOCSOUND; 1974 break; 1975 case _IO('K', 66): 1976 cmd = KDSETLED; 1977 break; 1978 case _IO('c', 110): 1979 cmd = CONS_SETKBD; 1980 break; 1981 default: 1982 goto skip_thunk; 1983 } 1984 ival = IOCPARM_IVAL(data); 1985 data = (caddr_t)&ival; 1986 skip_thunk: 1987 #endif 1988 1989 switch (cmd) { 1990 case KDSETRAD: /* set keyboard repeat & delay rates (old) */ 1991 if (*(int *)data & ~0x7f) 1992 return (EINVAL); 1993 /* FALLTHROUGH */ 1994 case GIO_KEYMAP: 1995 case PIO_KEYMAP: 1996 case GIO_DEADKEYMAP: 1997 case PIO_DEADKEYMAP: 1998 case GETFKEY: 1999 case SETFKEY: 2000 case KDGKBINFO: 2001 case KDGKBTYPE: 2002 case KDGETREPEAT: /* get keyboard repeat & delay rates */ 2003 case KDSETREPEAT: /* set keyboard repeat & delay rates (new) */ 2004 case KBADDKBD: /* add/remove keyboard to/from mux */ 2005 case KBRELKBD: { 2006 error = 0; 2007 2008 mtx_lock(&Giant); 2009 kbd = kbd_get_keyboard(vd->vd_keyboard); 2010 if (kbd != NULL) 2011 error = kbdd_ioctl(kbd, cmd, data); 2012 mtx_unlock(&Giant); 2013 if (error == ENOIOCTL) { 2014 if (cmd == KDGKBTYPE) { 2015 /* always return something? XXX */ 2016 *(int *)data = 0; 2017 } else { 2018 return (ENODEV); 2019 } 2020 } 2021 return (error); 2022 } 2023 case KDGKBSTATE: { /* get keyboard state (locks) */ 2024 error = 0; 2025 2026 if (vw == vd->vd_curwindow) { 2027 mtx_lock(&Giant); 2028 kbd = kbd_get_keyboard(vd->vd_keyboard); 2029 if (kbd != NULL) 2030 error = vt_save_kbd_state(vw, kbd); 2031 mtx_unlock(&Giant); 2032 2033 if (error != 0) 2034 return (error); 2035 } 2036 2037 *(int *)data = vw->vw_kbdstate & LOCK_MASK; 2038 2039 return (error); 2040 } 2041 case KDSKBSTATE: { /* set keyboard state (locks) */ 2042 int state; 2043 2044 state = *(int *)data; 2045 if (state & ~LOCK_MASK) 2046 return (EINVAL); 2047 2048 vw->vw_kbdstate &= ~LOCK_MASK; 2049 vw->vw_kbdstate |= state; 2050 2051 error = 0; 2052 if (vw == vd->vd_curwindow) { 2053 mtx_lock(&Giant); 2054 kbd = kbd_get_keyboard(vd->vd_keyboard); 2055 if (kbd != NULL) 2056 error = vt_update_kbd_state(vw, kbd); 2057 mtx_unlock(&Giant); 2058 } 2059 2060 return (error); 2061 } 2062 case KDGETLED: { /* get keyboard LED status */ 2063 error = 0; 2064 2065 if (vw == vd->vd_curwindow) { 2066 mtx_lock(&Giant); 2067 kbd = kbd_get_keyboard(vd->vd_keyboard); 2068 if (kbd != NULL) 2069 error = vt_save_kbd_leds(vw, kbd); 2070 mtx_unlock(&Giant); 2071 2072 if (error != 0) 2073 return (error); 2074 } 2075 2076 *(int *)data = vw->vw_kbdstate & LED_MASK; 2077 2078 return (error); 2079 } 2080 case KDSETLED: { /* set keyboard LED status */ 2081 int leds; 2082 2083 leds = *(int *)data; 2084 if (leds & ~LED_MASK) 2085 return (EINVAL); 2086 2087 vw->vw_kbdstate &= ~LED_MASK; 2088 vw->vw_kbdstate |= leds; 2089 2090 error = 0; 2091 if (vw == vd->vd_curwindow) { 2092 mtx_lock(&Giant); 2093 kbd = kbd_get_keyboard(vd->vd_keyboard); 2094 if (kbd != NULL) 2095 error = vt_update_kbd_leds(vw, kbd); 2096 mtx_unlock(&Giant); 2097 } 2098 2099 return (error); 2100 } 2101 case KDGKBMODE: { 2102 error = 0; 2103 2104 if (vw == vd->vd_curwindow) { 2105 mtx_lock(&Giant); 2106 kbd = kbd_get_keyboard(vd->vd_keyboard); 2107 if (kbd != NULL) 2108 error = vt_save_kbd_mode(vw, kbd); 2109 mtx_unlock(&Giant); 2110 2111 if (error != 0) 2112 return (error); 2113 } 2114 2115 *(int *)data = vw->vw_kbdmode; 2116 2117 return (error); 2118 } 2119 case KDSKBMODE: { 2120 int mode; 2121 2122 mode = *(int *)data; 2123 switch (mode) { 2124 case K_XLATE: 2125 case K_RAW: 2126 case K_CODE: 2127 vw->vw_kbdmode = mode; 2128 2129 error = 0; 2130 if (vw == vd->vd_curwindow) { 2131 mtx_lock(&Giant); 2132 kbd = kbd_get_keyboard(vd->vd_keyboard); 2133 if (kbd != NULL) 2134 error = vt_update_kbd_mode(vw, kbd); 2135 mtx_unlock(&Giant); 2136 } 2137 2138 return (error); 2139 default: 2140 return (EINVAL); 2141 } 2142 } 2143 case FBIOGTYPE: 2144 case FBIO_GETWINORG: /* get frame buffer window origin */ 2145 case FBIO_GETDISPSTART: /* get display start address */ 2146 case FBIO_GETLINEWIDTH: /* get scan line width in bytes */ 2147 case FBIO_BLANK: /* blank display */ 2148 if (vd->vd_driver->vd_fb_ioctl) 2149 return (vd->vd_driver->vd_fb_ioctl(vd, cmd, data, td)); 2150 break; 2151 case CONS_BLANKTIME: 2152 /* XXX */ 2153 return (0); 2154 case CONS_GET: 2155 /* XXX */ 2156 *(int *)data = M_CG640x480; 2157 return (0); 2158 case CONS_BELLTYPE: /* set bell type sound */ 2159 if ((*(int *)data) & CONS_QUIET_BELL) 2160 vd->vd_flags |= VDF_QUIET_BELL; 2161 else 2162 vd->vd_flags &= ~VDF_QUIET_BELL; 2163 return (0); 2164 case CONS_GETINFO: { 2165 vid_info_t *vi = (vid_info_t *)data; 2166 if (vi->size != sizeof(struct vid_info)) 2167 return (EINVAL); 2168 2169 if (vw == vd->vd_curwindow) { 2170 kbd = kbd_get_keyboard(vd->vd_keyboard); 2171 if (kbd != NULL) 2172 vt_save_kbd_state(vw, kbd); 2173 } 2174 2175 vi->m_num = vd->vd_curwindow->vw_number + 1; 2176 vi->mk_keylock = vw->vw_kbdstate & LOCK_MASK; 2177 /* XXX: other fields! */ 2178 return (0); 2179 } 2180 case CONS_GETVERS: 2181 *(int *)data = 0x200; 2182 return (0); 2183 case CONS_MODEINFO: 2184 /* XXX */ 2185 return (0); 2186 case CONS_MOUSECTL: { 2187 mouse_info_t *mouse = (mouse_info_t*)data; 2188 2189 /* 2190 * All the commands except MOUSE_SHOW nd MOUSE_HIDE 2191 * should not be applied to individual TTYs, but only to 2192 * consolectl. 2193 */ 2194 switch (mouse->operation) { 2195 case MOUSE_HIDE: 2196 if (vd->vd_flags & VDF_MOUSECURSOR) { 2197 vd->vd_flags &= ~VDF_MOUSECURSOR; 2198 #ifndef SC_NO_CUTPASTE 2199 vt_mouse_state(VT_MOUSE_HIDE); 2200 #endif 2201 } 2202 return (0); 2203 case MOUSE_SHOW: 2204 if (!(vd->vd_flags & VDF_MOUSECURSOR)) { 2205 vd->vd_flags |= VDF_MOUSECURSOR; 2206 vd->vd_mx = vd->vd_width / 2; 2207 vd->vd_my = vd->vd_height / 2; 2208 #ifndef SC_NO_CUTPASTE 2209 vt_mouse_state(VT_MOUSE_SHOW); 2210 #endif 2211 } 2212 return (0); 2213 default: 2214 return (EINVAL); 2215 } 2216 } 2217 case PIO_VFONT: { 2218 struct vt_font *vf; 2219 2220 if (vd->vd_flags & VDF_TEXTMODE) 2221 return (ENOTSUP); 2222 2223 error = vtfont_load((void *)data, &vf); 2224 if (error != 0) 2225 return (error); 2226 2227 error = vt_change_font(vw, vf); 2228 vtfont_unref(vf); 2229 return (error); 2230 } 2231 case PIO_VFONT_DEFAULT: { 2232 /* Reset to default font. */ 2233 error = vt_change_font(vw, &vt_font_default); 2234 return (error); 2235 } 2236 case GIO_SCRNMAP: { 2237 scrmap_t *sm = (scrmap_t *)data; 2238 2239 /* We don't have screen maps, so return a handcrafted one. */ 2240 for (i = 0; i < 256; i++) 2241 sm->scrmap[i] = i; 2242 return (0); 2243 } 2244 case KDSETMODE: 2245 /* 2246 * FIXME: This implementation is incomplete compared to 2247 * syscons. 2248 */ 2249 switch (*(int *)data) { 2250 case KD_TEXT: 2251 case KD_TEXT1: 2252 case KD_PIXEL: 2253 vw->vw_flags &= ~VWF_GRAPHICS; 2254 break; 2255 case KD_GRAPHICS: 2256 vw->vw_flags |= VWF_GRAPHICS; 2257 break; 2258 } 2259 return (0); 2260 case KDENABIO: /* allow io operations */ 2261 error = priv_check(td, PRIV_IO); 2262 if (error != 0) 2263 return (error); 2264 error = securelevel_gt(td->td_ucred, 0); 2265 if (error != 0) 2266 return (error); 2267 #if defined(__i386__) 2268 td->td_frame->tf_eflags |= PSL_IOPL; 2269 #elif defined(__amd64__) 2270 td->td_frame->tf_rflags |= PSL_IOPL; 2271 #endif 2272 return (0); 2273 case KDDISABIO: /* disallow io operations (default) */ 2274 #if defined(__i386__) 2275 td->td_frame->tf_eflags &= ~PSL_IOPL; 2276 #elif defined(__amd64__) 2277 td->td_frame->tf_rflags &= ~PSL_IOPL; 2278 #endif 2279 return (0); 2280 case KDMKTONE: /* sound the bell */ 2281 vtterm_beep(tm, *(u_int *)data); 2282 return (0); 2283 case KIOCSOUND: /* make tone (*data) hz */ 2284 /* TODO */ 2285 return (0); 2286 case CONS_SETKBD: /* set the new keyboard */ 2287 mtx_lock(&Giant); 2288 error = 0; 2289 if (vd->vd_keyboard != *(int *)data) { 2290 kbd = kbd_get_keyboard(*(int *)data); 2291 if (kbd == NULL) { 2292 mtx_unlock(&Giant); 2293 return (EINVAL); 2294 } 2295 i = kbd_allocate(kbd->kb_name, kbd->kb_unit, 2296 (void *)vd, vt_kbdevent, vd); 2297 if (i >= 0) { 2298 if (vd->vd_keyboard != -1) { 2299 vt_save_kbd_state(vd->vd_curwindow, kbd); 2300 kbd_release(kbd, (void *)vd); 2301 } 2302 kbd = kbd_get_keyboard(i); 2303 vd->vd_keyboard = i; 2304 2305 vt_update_kbd_mode(vd->vd_curwindow, kbd); 2306 vt_update_kbd_state(vd->vd_curwindow, kbd); 2307 } else { 2308 error = EPERM; /* XXX */ 2309 } 2310 } 2311 mtx_unlock(&Giant); 2312 return (error); 2313 case CONS_RELKBD: /* release the current keyboard */ 2314 mtx_lock(&Giant); 2315 error = 0; 2316 if (vd->vd_keyboard != -1) { 2317 kbd = kbd_get_keyboard(vd->vd_keyboard); 2318 if (kbd == NULL) { 2319 mtx_unlock(&Giant); 2320 return (EINVAL); 2321 } 2322 vt_save_kbd_state(vd->vd_curwindow, kbd); 2323 error = kbd_release(kbd, (void *)vd); 2324 if (error == 0) { 2325 vd->vd_keyboard = -1; 2326 } 2327 } 2328 mtx_unlock(&Giant); 2329 return (error); 2330 case VT_ACTIVATE: { 2331 int win; 2332 win = *(int *)data - 1; 2333 DPRINTF(5, "%s%d: VT_ACTIVATE ttyv%d ", SC_DRIVER_NAME, 2334 VT_UNIT(vw), win); 2335 if ((win >= VT_MAXWINDOWS) || (win < 0)) 2336 return (EINVAL); 2337 return (vt_proc_window_switch(vd->vd_windows[win])); 2338 } 2339 case VT_GETACTIVE: 2340 *(int *)data = vd->vd_curwindow->vw_number + 1; 2341 return (0); 2342 case VT_GETINDEX: 2343 *(int *)data = vw->vw_number + 1; 2344 return (0); 2345 case VT_LOCKSWITCH: 2346 /* TODO: Check current state, switching can be in progress. */ 2347 if ((*(int *)data) == 0x01) 2348 vw->vw_flags |= VWF_VTYLOCK; 2349 else if ((*(int *)data) == 0x02) 2350 vw->vw_flags &= ~VWF_VTYLOCK; 2351 else 2352 return (EINVAL); 2353 return (0); 2354 case VT_OPENQRY: 2355 VT_LOCK(vd); 2356 for (i = 0; i < VT_MAXWINDOWS; i++) { 2357 vw = vd->vd_windows[i]; 2358 if (vw == NULL) 2359 continue; 2360 if (!(vw->vw_flags & VWF_OPENED)) { 2361 *(int *)data = vw->vw_number + 1; 2362 VT_UNLOCK(vd); 2363 return (0); 2364 } 2365 } 2366 VT_UNLOCK(vd); 2367 return (EINVAL); 2368 case VT_WAITACTIVE: 2369 error = 0; 2370 2371 i = *(unsigned int *)data; 2372 if (i > VT_MAXWINDOWS) 2373 return (EINVAL); 2374 if (i != 0) 2375 vw = vd->vd_windows[i - 1]; 2376 2377 VT_LOCK(vd); 2378 while (vd->vd_curwindow != vw && error == 0) 2379 error = cv_wait_sig(&vd->vd_winswitch, &vd->vd_lock); 2380 VT_UNLOCK(vd); 2381 return (error); 2382 case VT_SETMODE: { /* set screen switcher mode */ 2383 struct vt_mode *mode; 2384 struct proc *p1; 2385 2386 mode = (struct vt_mode *)data; 2387 DPRINTF(5, "%s%d: VT_SETMODE ", SC_DRIVER_NAME, VT_UNIT(vw)); 2388 if (vw->vw_smode.mode == VT_PROCESS) { 2389 p1 = pfind(vw->vw_pid); 2390 if (vw->vw_proc == p1 && vw->vw_proc != td->td_proc) { 2391 if (p1) 2392 PROC_UNLOCK(p1); 2393 DPRINTF(5, "error EPERM\n"); 2394 return (EPERM); 2395 } 2396 if (p1) 2397 PROC_UNLOCK(p1); 2398 } 2399 if (mode->mode == VT_AUTO) { 2400 vw->vw_smode.mode = VT_AUTO; 2401 vw->vw_proc = NULL; 2402 vw->vw_pid = 0; 2403 DPRINTF(5, "VT_AUTO, "); 2404 if (vw == vw->vw_device->vd_windows[VT_CONSWINDOW]) 2405 cnavailable(vw->vw_terminal->consdev, TRUE); 2406 /* were we in the middle of the vty switching process? */ 2407 if (finish_vt_rel(vw, TRUE, &s) == 0) 2408 DPRINTF(5, "reset WAIT_REL, "); 2409 if (finish_vt_acq(vw) == 0) 2410 DPRINTF(5, "reset WAIT_ACQ, "); 2411 return (0); 2412 } else if (mode->mode == VT_PROCESS) { 2413 if (!ISSIGVALID(mode->relsig) || 2414 !ISSIGVALID(mode->acqsig) || 2415 !ISSIGVALID(mode->frsig)) { 2416 DPRINTF(5, "error EINVAL\n"); 2417 return (EINVAL); 2418 } 2419 DPRINTF(5, "VT_PROCESS %d, ", td->td_proc->p_pid); 2420 bcopy(data, &vw->vw_smode, sizeof(struct vt_mode)); 2421 vw->vw_proc = td->td_proc; 2422 vw->vw_pid = vw->vw_proc->p_pid; 2423 if (vw == vw->vw_device->vd_windows[VT_CONSWINDOW]) 2424 cnavailable(vw->vw_terminal->consdev, FALSE); 2425 } else { 2426 DPRINTF(5, "VT_SETMODE failed, unknown mode %d\n", 2427 mode->mode); 2428 return (EINVAL); 2429 } 2430 DPRINTF(5, "\n"); 2431 return (0); 2432 } 2433 case VT_GETMODE: /* get screen switcher mode */ 2434 bcopy(&vw->vw_smode, data, sizeof(struct vt_mode)); 2435 return (0); 2436 2437 case VT_RELDISP: /* screen switcher ioctl */ 2438 /* 2439 * This must be the current vty which is in the VT_PROCESS 2440 * switching mode... 2441 */ 2442 if ((vw != vd->vd_curwindow) || (vw->vw_smode.mode != 2443 VT_PROCESS)) { 2444 return (EINVAL); 2445 } 2446 /* ...and this process is controlling it. */ 2447 if (vw->vw_proc != td->td_proc) { 2448 return (EPERM); 2449 } 2450 error = EINVAL; 2451 switch(*(int *)data) { 2452 case VT_FALSE: /* user refuses to release screen, abort */ 2453 if ((error = finish_vt_rel(vw, FALSE, &s)) == 0) 2454 DPRINTF(5, "%s%d: VT_RELDISP: VT_FALSE\n", 2455 SC_DRIVER_NAME, VT_UNIT(vw)); 2456 break; 2457 case VT_TRUE: /* user has released screen, go on */ 2458 /* finish_vt_rel(..., TRUE, ...) should not be locked */ 2459 if (vw->vw_flags & VWF_SWWAIT_REL) { 2460 if ((error = finish_vt_rel(vw, TRUE, &s)) == 0) 2461 DPRINTF(5, "%s%d: VT_RELDISP: VT_TRUE\n", 2462 SC_DRIVER_NAME, VT_UNIT(vw)); 2463 } else { 2464 error = EINVAL; 2465 } 2466 return (error); 2467 case VT_ACKACQ: /* acquire acknowledged, switch completed */ 2468 if ((error = finish_vt_acq(vw)) == 0) 2469 DPRINTF(5, "%s%d: VT_RELDISP: VT_ACKACQ\n", 2470 SC_DRIVER_NAME, VT_UNIT(vw)); 2471 break; 2472 default: 2473 break; 2474 } 2475 return (error); 2476 } 2477 2478 return (ENOIOCTL); 2479 } 2480 2481 static struct vt_window * 2482 vt_allocate_window(struct vt_device *vd, unsigned int window) 2483 { 2484 struct vt_window *vw; 2485 struct terminal *tm; 2486 term_pos_t size; 2487 struct winsize wsz; 2488 2489 vw = malloc(sizeof *vw, M_VT, M_WAITOK|M_ZERO); 2490 vw->vw_device = vd; 2491 vw->vw_number = window; 2492 vw->vw_kbdmode = K_XLATE; 2493 2494 if ((vd->vd_flags & VDF_TEXTMODE) == 0) { 2495 vw->vw_font = vtfont_ref(&vt_font_default); 2496 vt_compute_drawable_area(vw); 2497 } 2498 2499 vt_termsize(vd, vw->vw_font, &size); 2500 vt_winsize(vd, vw->vw_font, &wsz); 2501 vtbuf_init(&vw->vw_buf, &size); 2502 2503 tm = vw->vw_terminal = terminal_alloc(&vt_termclass, vw); 2504 terminal_set_winsize(tm, &wsz); 2505 vd->vd_windows[window] = vw; 2506 callout_init(&vw->vw_proc_dead_timer, 0); 2507 2508 return (vw); 2509 } 2510 2511 void 2512 vt_upgrade(struct vt_device *vd) 2513 { 2514 struct vt_window *vw; 2515 unsigned int i; 2516 2517 if (!vty_enabled(VTY_VT)) 2518 return; 2519 if (main_vd->vd_driver == NULL) 2520 return; 2521 2522 for (i = 0; i < VT_MAXWINDOWS; i++) { 2523 vw = vd->vd_windows[i]; 2524 if (vw == NULL) { 2525 /* New window. */ 2526 vw = vt_allocate_window(vd, i); 2527 } 2528 if (!(vw->vw_flags & VWF_READY)) { 2529 callout_init(&vw->vw_proc_dead_timer, 0); 2530 terminal_maketty(vw->vw_terminal, "v%r", VT_UNIT(vw)); 2531 vw->vw_flags |= VWF_READY; 2532 if (vw->vw_flags & VWF_CONSOLE) { 2533 /* For existing console window. */ 2534 EVENTHANDLER_REGISTER(shutdown_pre_sync, 2535 vt_window_switch, vw, SHUTDOWN_PRI_DEFAULT); 2536 } 2537 } 2538 2539 } 2540 VT_LOCK(vd); 2541 if (vd->vd_curwindow == NULL) 2542 vd->vd_curwindow = vd->vd_windows[VT_CONSWINDOW]; 2543 2544 if (!(vd->vd_flags & VDF_ASYNC)) { 2545 /* Attach keyboard. */ 2546 vt_allocate_keyboard(vd); 2547 2548 /* Init 25 Hz timer. */ 2549 callout_init_mtx(&vd->vd_timer, &vd->vd_lock, 0); 2550 2551 /* Start timer when everything ready. */ 2552 vd->vd_flags |= VDF_ASYNC; 2553 callout_reset(&vd->vd_timer, hz / VT_TIMERFREQ, vt_timer, vd); 2554 vd->vd_timer_armed = 1; 2555 } 2556 2557 VT_UNLOCK(vd); 2558 2559 /* Refill settings with new sizes. */ 2560 vt_resize(vd); 2561 } 2562 2563 static void 2564 vt_resize(struct vt_device *vd) 2565 { 2566 struct vt_window *vw; 2567 int i; 2568 2569 for (i = 0; i < VT_MAXWINDOWS; i++) { 2570 vw = vd->vd_windows[i]; 2571 VT_LOCK(vd); 2572 /* Assign default font to window, if not textmode. */ 2573 if (!(vd->vd_flags & VDF_TEXTMODE) && vw->vw_font == NULL) 2574 vw->vw_font = vtfont_ref(&vt_font_default); 2575 VT_UNLOCK(vd); 2576 2577 /* Resize terminal windows */ 2578 while (vt_change_font(vw, vw->vw_font) == EBUSY) { 2579 DPRINTF(100, "%s: vt_change_font() is busy, " 2580 "window %d\n", __func__, i); 2581 } 2582 } 2583 } 2584 2585 void 2586 vt_allocate(struct vt_driver *drv, void *softc) 2587 { 2588 struct vt_device *vd; 2589 2590 if (!vty_enabled(VTY_VT)) 2591 return; 2592 2593 if (main_vd->vd_driver == NULL) { 2594 main_vd->vd_driver = drv; 2595 printf("VT: initialize with new VT driver \"%s\".\n", 2596 drv->vd_name); 2597 } else { 2598 /* 2599 * Check if have rights to replace current driver. For example: 2600 * it is bad idea to replace KMS driver with generic VGA one. 2601 */ 2602 if (drv->vd_priority <= main_vd->vd_driver->vd_priority) { 2603 printf("VT: Driver priority %d too low. Current %d\n ", 2604 drv->vd_priority, main_vd->vd_driver->vd_priority); 2605 return; 2606 } 2607 printf("VT: Replacing driver \"%s\" with new \"%s\".\n", 2608 main_vd->vd_driver->vd_name, drv->vd_name); 2609 } 2610 vd = main_vd; 2611 2612 if (vd->vd_flags & VDF_ASYNC) { 2613 /* Stop vt_flush periodic task. */ 2614 VT_LOCK(vd); 2615 vt_suspend_flush_timer(vd); 2616 VT_UNLOCK(vd); 2617 /* 2618 * Mute current terminal until we done. vt_change_font (called 2619 * from vt_resize) will unmute it. 2620 */ 2621 terminal_mute(vd->vd_curwindow->vw_terminal, 1); 2622 } 2623 2624 /* 2625 * Reset VDF_TEXTMODE flag, driver who require that flag (vt_vga) will 2626 * set it. 2627 */ 2628 VT_LOCK(vd); 2629 vd->vd_flags &= ~VDF_TEXTMODE; 2630 2631 vd->vd_driver = drv; 2632 vd->vd_softc = softc; 2633 vd->vd_driver->vd_init(vd); 2634 VT_UNLOCK(vd); 2635 2636 /* Update windows sizes and initialize last items. */ 2637 vt_upgrade(vd); 2638 2639 #ifdef DEV_SPLASH 2640 if (vd->vd_flags & VDF_SPLASH) 2641 vtterm_splash(vd); 2642 #endif 2643 2644 if (vd->vd_flags & VDF_ASYNC) { 2645 /* Allow to put chars now. */ 2646 terminal_mute(vd->vd_curwindow->vw_terminal, 0); 2647 /* Rerun timer for screen updates. */ 2648 vt_resume_flush_timer(vd, 0); 2649 } 2650 2651 /* 2652 * Register as console. If it already registered, cnadd() will ignore 2653 * it. 2654 */ 2655 termcn_cnregister(vd->vd_windows[VT_CONSWINDOW]->vw_terminal); 2656 } 2657 2658 void 2659 vt_suspend() 2660 { 2661 2662 if (vt_suspendswitch == 0) 2663 return; 2664 /* Save current window. */ 2665 main_vd->vd_savedwindow = main_vd->vd_curwindow; 2666 /* Ask holding process to free window and switch to console window */ 2667 vt_proc_window_switch(main_vd->vd_windows[VT_CONSWINDOW]); 2668 } 2669 2670 void 2671 vt_resume() 2672 { 2673 2674 if (vt_suspendswitch == 0) 2675 return; 2676 /* Switch back to saved window */ 2677 if (main_vd->vd_savedwindow != NULL) 2678 vt_proc_window_switch(main_vd->vd_savedwindow); 2679 main_vd->vd_savedwindow = NULL; 2680 } 2681