1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2009, 2013 The FreeBSD Foundation 5 * 6 * This software was developed by Ed Schouten under sponsorship from the 7 * FreeBSD Foundation. 8 * 9 * Portions of this software were developed by Oleksandr Rybalko 10 * under sponsorship from the FreeBSD Foundation. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #include <sys/param.h> 35 #include <sys/consio.h> 36 #include <sys/devctl.h> 37 #include <sys/eventhandler.h> 38 #include <sys/fbio.h> 39 #include <sys/font.h> 40 #include <sys/kbio.h> 41 #include <sys/kdb.h> 42 #include <sys/kernel.h> 43 #include <sys/linker.h> 44 #include <sys/lock.h> 45 #include <sys/malloc.h> 46 #include <sys/mutex.h> 47 #include <sys/splash.h> 48 #include <sys/power.h> 49 #include <sys/priv.h> 50 #include <sys/proc.h> 51 #include <sys/random.h> 52 #include <sys/reboot.h> 53 #include <sys/sbuf.h> 54 #include <sys/systm.h> 55 #include <sys/terminal.h> 56 57 #include <dev/kbd/kbdreg.h> 58 #include <dev/vt/vt.h> 59 60 #if defined(__i386__) || defined(__amd64__) 61 #include <machine/psl.h> 62 #include <machine/frame.h> 63 #endif 64 65 static int vtterm_cngrab_noswitch(struct vt_device *, struct vt_window *); 66 static int vtterm_cnungrab_noswitch(struct vt_device *, struct vt_window *); 67 68 static tc_bell_t vtterm_bell; 69 static tc_cursor_t vtterm_cursor; 70 static tc_putchar_t vtterm_putchar; 71 static tc_fill_t vtterm_fill; 72 static tc_copy_t vtterm_copy; 73 static tc_pre_input_t vtterm_pre_input; 74 static tc_post_input_t vtterm_post_input; 75 static tc_param_t vtterm_param; 76 static tc_done_t vtterm_done; 77 78 static tc_cnprobe_t vtterm_cnprobe; 79 static tc_cngetc_t vtterm_cngetc; 80 81 static tc_cngrab_t vtterm_cngrab; 82 static tc_cnungrab_t vtterm_cnungrab; 83 84 static tc_opened_t vtterm_opened; 85 static tc_ioctl_t vtterm_ioctl; 86 static tc_mmap_t vtterm_mmap; 87 88 static const struct terminal_class vt_termclass = { 89 .tc_bell = vtterm_bell, 90 .tc_cursor = vtterm_cursor, 91 .tc_putchar = vtterm_putchar, 92 .tc_fill = vtterm_fill, 93 .tc_copy = vtterm_copy, 94 .tc_pre_input = vtterm_pre_input, 95 .tc_post_input = vtterm_post_input, 96 .tc_param = vtterm_param, 97 .tc_done = vtterm_done, 98 99 .tc_cnprobe = vtterm_cnprobe, 100 .tc_cngetc = vtterm_cngetc, 101 102 .tc_cngrab = vtterm_cngrab, 103 .tc_cnungrab = vtterm_cnungrab, 104 105 .tc_opened = vtterm_opened, 106 .tc_ioctl = vtterm_ioctl, 107 .tc_mmap = vtterm_mmap, 108 }; 109 110 /* 111 * Use a constant timer of 25 Hz to redraw the screen. 112 * 113 * XXX: In theory we should only fire up the timer when there is really 114 * activity. Unfortunately we cannot always start timers. We really 115 * don't want to process kernel messages synchronously, because it 116 * really slows down the system. 117 */ 118 #define VT_TIMERFREQ 25 119 120 /* Bell pitch/duration. */ 121 #define VT_BELLDURATION (SBT_1S / 20) 122 #define VT_BELLPITCH 800 123 124 #define VT_UNIT(vw) ((vw)->vw_device->vd_unit * VT_MAXWINDOWS + \ 125 (vw)->vw_number) 126 127 static SYSCTL_NODE(_kern, OID_AUTO, vt, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, 128 "vt(4) parameters"); 129 static VT_SYSCTL_INT(enable_altgr, 1, "Enable AltGr key (Do not assume R.Alt as Alt)"); 130 static VT_SYSCTL_INT(enable_bell, 0, "Enable bell"); 131 static VT_SYSCTL_INT(debug, 0, "vt(4) debug level"); 132 static VT_SYSCTL_INT(deadtimer, 15, "Time to wait busy process in VT_PROCESS mode"); 133 static VT_SYSCTL_INT(suspendswitch, 1, "Switch to VT0 before suspend"); 134 135 /* Slow down and dont rely on timers and interrupts */ 136 static VT_SYSCTL_INT(slow_down, 0, "Non-zero make console slower and synchronous."); 137 138 /* Allow to disable some keyboard combinations. */ 139 static VT_SYSCTL_INT(kbd_halt, 1, "Enable halt keyboard combination. " 140 "See kbdmap(5) to configure."); 141 static VT_SYSCTL_INT(kbd_poweroff, 1, "Enable Power Off keyboard combination. " 142 "See kbdmap(5) to configure."); 143 static VT_SYSCTL_INT(kbd_reboot, 1, "Enable reboot keyboard combination. " 144 "See kbdmap(5) to configure (typically Ctrl-Alt-Delete)."); 145 static VT_SYSCTL_INT(kbd_debug, 1, "Enable key combination to enter debugger. " 146 "See kbdmap(5) to configure (typically Ctrl-Alt-Esc)."); 147 static VT_SYSCTL_INT(kbd_panic, 0, "Enable request to panic. " 148 "See kbdmap(5) to configure."); 149 150 /* Used internally, not a tunable. */ 151 int vt_draw_logo_cpus; 152 VT_SYSCTL_INT(splash_cpu, 0, "Show logo CPUs during boot"); 153 VT_SYSCTL_INT(splash_ncpu, 0, "Override number of logos displayed " 154 "(0 = do not override)"); 155 VT_SYSCTL_INT(splash_cpu_style, 2, "Draw logo style " 156 "(0 = Alternate beastie, 1 = Beastie, 2 = Orb)"); 157 VT_SYSCTL_INT(splash_cpu_duration, 10, "Hide logos after (seconds)"); 158 159 static unsigned int vt_unit = 0; 160 static MALLOC_DEFINE(M_VT, "vt", "vt device"); 161 struct vt_device *main_vd = &vt_consdev; 162 163 /* Boot logo. */ 164 extern unsigned int vt_logo_width; 165 extern unsigned int vt_logo_height; 166 extern unsigned int vt_logo_depth; 167 extern unsigned char vt_logo_image[]; 168 #ifndef DEV_SPLASH 169 #define vtterm_draw_cpu_logos(...) do {} while (0) 170 const unsigned int vt_logo_sprite_height; 171 #endif 172 173 /* 174 * Console font. vt_font_loader will be filled with font data passed 175 * by loader. If there is no font passed by boot loader, we use built in 176 * default. 177 */ 178 extern struct vt_font vt_font_default; 179 static struct vt_font vt_font_loader; 180 static struct vt_font *vt_font_assigned = &vt_font_default; 181 182 #ifndef SC_NO_CUTPASTE 183 extern struct vt_mouse_cursor vt_default_mouse_pointer; 184 #endif 185 186 static int signal_vt_rel(struct vt_window *); 187 static int signal_vt_acq(struct vt_window *); 188 static int finish_vt_rel(struct vt_window *, int, int *); 189 static int finish_vt_acq(struct vt_window *); 190 static int vt_window_switch(struct vt_window *); 191 static int vt_late_window_switch(struct vt_window *); 192 static int vt_proc_alive(struct vt_window *); 193 static void vt_resize(struct vt_device *); 194 static void vt_update_static(void *); 195 #ifndef SC_NO_CUTPASTE 196 static void vt_mouse_paste(void); 197 #endif 198 static void vt_suspend_handler(void *priv, enum power_stype stype); 199 static void vt_resume_handler(void *priv, enum power_stype stype); 200 201 SET_DECLARE(vt_drv_set, struct vt_driver); 202 203 #define _VTDEFH MAX(100, PIXEL_HEIGHT(VT_FB_MAX_HEIGHT)) 204 #define _VTDEFW MAX(200, PIXEL_WIDTH(VT_FB_MAX_WIDTH)) 205 206 static struct terminal vt_consterm; 207 static struct vt_window vt_conswindow; 208 static term_char_t vt_consdrawn[PIXEL_HEIGHT(VT_FB_MAX_HEIGHT) * PIXEL_WIDTH(VT_FB_MAX_WIDTH)]; 209 static term_color_t vt_consdrawnfg[PIXEL_HEIGHT(VT_FB_MAX_HEIGHT) * PIXEL_WIDTH(VT_FB_MAX_WIDTH)]; 210 static term_color_t vt_consdrawnbg[PIXEL_HEIGHT(VT_FB_MAX_HEIGHT) * PIXEL_WIDTH(VT_FB_MAX_WIDTH)]; 211 static bool vt_cons_pos_to_flush[PIXEL_HEIGHT(VT_FB_MAX_HEIGHT) * PIXEL_WIDTH(VT_FB_MAX_WIDTH)]; 212 struct vt_device vt_consdev = { 213 .vd_driver = NULL, 214 .vd_softc = NULL, 215 .vd_prev_driver = NULL, 216 .vd_prev_softc = NULL, 217 .vd_flags = VDF_INVALID, 218 .vd_windows = { [VT_CONSWINDOW] = &vt_conswindow, }, 219 .vd_curwindow = &vt_conswindow, 220 .vd_kbstate = 0, 221 222 #ifndef SC_NO_CUTPASTE 223 .vd_pastebuf = { 224 .vpb_buf = NULL, 225 .vpb_bufsz = 0, 226 .vpb_len = 0 227 }, 228 .vd_mcursor = &vt_default_mouse_pointer, 229 .vd_mcursor_fg = TC_WHITE, 230 .vd_mcursor_bg = TC_BLACK, 231 #endif 232 233 .vd_drawn = vt_consdrawn, 234 .vd_drawnfg = vt_consdrawnfg, 235 .vd_drawnbg = vt_consdrawnbg, 236 237 .vd_pos_to_flush = vt_cons_pos_to_flush, 238 }; 239 static term_char_t vt_constextbuf[(_VTDEFW) * (VBF_DEFAULT_HISTORY_SIZE)]; 240 static term_char_t *vt_constextbufrows[VBF_DEFAULT_HISTORY_SIZE]; 241 static struct vt_window vt_conswindow = { 242 .vw_number = VT_CONSWINDOW, 243 .vw_flags = VWF_CONSOLE, 244 .vw_buf = { 245 .vb_buffer = &vt_constextbuf[0], 246 .vb_rows = &vt_constextbufrows[0], 247 .vb_history_size = VBF_DEFAULT_HISTORY_SIZE, 248 .vb_curroffset = 0, 249 .vb_roffset = 0, 250 .vb_flags = VBF_STATIC, 251 .vb_mark_start = {.tp_row = 0, .tp_col = 0,}, 252 .vb_mark_end = {.tp_row = 0, .tp_col = 0,}, 253 .vb_scr_size = { 254 .tp_row = _VTDEFH, 255 .tp_col = _VTDEFW, 256 }, 257 }, 258 .vw_device = &vt_consdev, 259 .vw_terminal = &vt_consterm, 260 .vw_kbdmode = K_XLATE, 261 .vw_grabbed = 0, 262 .vw_bell_pitch = VT_BELLPITCH, 263 .vw_bell_duration = VT_BELLDURATION, 264 }; 265 266 /* Add to set of consoles. */ 267 TERMINAL_DECLARE_EARLY(vt_consterm, vt_termclass, &vt_conswindow); 268 269 /* 270 * Right after kmem is done to allow early drivers to use locking and allocate 271 * memory. 272 */ 273 SYSINIT(vt_update_static, SI_SUB_KMEM, SI_ORDER_ANY, vt_update_static, 274 &vt_consdev); 275 /* Delay until all devices attached, to not waste time. */ 276 SYSINIT(vt_early_cons, SI_SUB_INT_CONFIG_HOOKS, SI_ORDER_ANY, vt_upgrade, 277 &vt_consdev); 278 279 static bool inside_vt_flush = false; 280 static bool inside_vt_window_switch = false; 281 282 /* Initialize locks/mem depended members. */ 283 static void 284 vt_update_static(void *dummy) 285 { 286 287 if (!vty_enabled(VTY_VT)) 288 return; 289 if (main_vd->vd_driver != NULL) 290 printf("VT(%s): %s %ux%u\n", main_vd->vd_driver->vd_name, 291 (main_vd->vd_flags & VDF_TEXTMODE) ? "text" : "resolution", 292 main_vd->vd_width, main_vd->vd_height); 293 else 294 printf("VT: init without driver.\n"); 295 296 mtx_init(&main_vd->vd_lock, "vtdev", NULL, MTX_DEF); 297 mtx_init(&main_vd->vd_flush_lock, "vtdev flush", NULL, MTX_DEF); 298 cv_init(&main_vd->vd_winswitch, "vtwswt"); 299 } 300 301 static void 302 vt_schedule_flush(struct vt_device *vd, int ms) 303 { 304 305 if (ms <= 0) 306 /* Default to initial value. */ 307 ms = 1000 / VT_TIMERFREQ; 308 309 callout_schedule(&vd->vd_timer, hz / (1000 / ms)); 310 } 311 312 void 313 vt_resume_flush_timer(struct vt_window *vw, int ms) 314 { 315 struct vt_device *vd = vw->vw_device; 316 317 if (vd->vd_curwindow != vw) 318 return; 319 320 if (!(vd->vd_flags & VDF_ASYNC) || 321 !atomic_cmpset_int(&vd->vd_timer_armed, 0, 1)) 322 return; 323 324 vt_schedule_flush(vd, ms); 325 } 326 327 static void 328 vt_suspend_flush_timer(struct vt_device *vd) 329 { 330 /* 331 * As long as this function is called locked, callout_stop() 332 * has the same effect like callout_drain() with regard to 333 * preventing the callback function from executing. 334 */ 335 VT_LOCK_ASSERT(vd, MA_OWNED); 336 337 if (!(vd->vd_flags & VDF_ASYNC) || 338 !atomic_cmpset_int(&vd->vd_timer_armed, 1, 0)) 339 return; 340 341 callout_stop(&vd->vd_timer); 342 } 343 344 static void 345 vt_switch_timer(void *arg, int pending) 346 { 347 348 (void)vt_late_window_switch((struct vt_window *)arg); 349 } 350 351 static int 352 vt_save_kbd_mode(struct vt_window *vw, keyboard_t *kbd) 353 { 354 int mode, ret; 355 356 mode = 0; 357 ret = kbdd_ioctl(kbd, KDGKBMODE, (caddr_t)&mode); 358 if (ret == ENOIOCTL) 359 ret = ENODEV; 360 if (ret != 0) 361 return (ret); 362 363 vw->vw_kbdmode = mode; 364 365 return (0); 366 } 367 368 static int 369 vt_update_kbd_mode(struct vt_window *vw, keyboard_t *kbd) 370 { 371 int ret; 372 373 ret = kbdd_ioctl(kbd, KDSKBMODE, (caddr_t)&vw->vw_kbdmode); 374 if (ret == ENOIOCTL) 375 ret = ENODEV; 376 377 return (ret); 378 } 379 380 static int 381 vt_save_kbd_state(struct vt_window *vw, keyboard_t *kbd) 382 { 383 int state, ret; 384 385 state = 0; 386 ret = kbdd_ioctl(kbd, KDGKBSTATE, (caddr_t)&state); 387 if (ret == ENOIOCTL) 388 ret = ENODEV; 389 if (ret != 0) 390 return (ret); 391 392 vw->vw_kbdstate &= ~LOCK_MASK; 393 vw->vw_kbdstate |= state & LOCK_MASK; 394 395 return (0); 396 } 397 398 static int 399 vt_update_kbd_state(struct vt_window *vw, keyboard_t *kbd) 400 { 401 int state, ret; 402 403 state = vw->vw_kbdstate & LOCK_MASK; 404 ret = kbdd_ioctl(kbd, KDSKBSTATE, (caddr_t)&state); 405 if (ret == ENOIOCTL) 406 ret = ENODEV; 407 408 return (ret); 409 } 410 411 static int 412 vt_save_kbd_leds(struct vt_window *vw, keyboard_t *kbd) 413 { 414 int leds, ret; 415 416 leds = 0; 417 ret = kbdd_ioctl(kbd, KDGETLED, (caddr_t)&leds); 418 if (ret == ENOIOCTL) 419 ret = ENODEV; 420 if (ret != 0) 421 return (ret); 422 423 vw->vw_kbdstate &= ~LED_MASK; 424 vw->vw_kbdstate |= leds & LED_MASK; 425 426 return (0); 427 } 428 429 static int 430 vt_update_kbd_leds(struct vt_window *vw, keyboard_t *kbd) 431 { 432 int leds, ret; 433 434 leds = vw->vw_kbdstate & LED_MASK; 435 ret = kbdd_ioctl(kbd, KDSETLED, (caddr_t)&leds); 436 if (ret == ENOIOCTL) 437 ret = ENODEV; 438 439 return (ret); 440 } 441 442 static int 443 vt_window_preswitch(struct vt_window *vw, struct vt_window *curvw) 444 { 445 446 DPRINTF(40, "%s\n", __func__); 447 curvw->vw_switch_to = vw; 448 /* Set timer to allow switch in case when process hang. */ 449 taskqueue_enqueue_timeout(taskqueue_thread, &vw->vw_timeout_task_dead, hz * vt_deadtimer); 450 /* Notify process about vt switch attempt. */ 451 DPRINTF(30, "%s: Notify process.\n", __func__); 452 signal_vt_rel(curvw); 453 454 return (0); 455 } 456 457 static int 458 vt_window_postswitch(struct vt_window *vw) 459 { 460 461 signal_vt_acq(vw); 462 return (0); 463 } 464 465 /* vt_late_window_switch will do VT switching for regular case. */ 466 static int 467 vt_late_window_switch(struct vt_window *vw) 468 { 469 struct vt_window *curvw; 470 int ret; 471 472 taskqueue_cancel_timeout(taskqueue_thread, &vw->vw_timeout_task_dead, NULL); 473 474 ret = vt_window_switch(vw); 475 if (ret != 0) { 476 /* 477 * If the switch hasn't happened, then return the VT 478 * to the current owner, if any. 479 */ 480 curvw = vw->vw_device->vd_curwindow; 481 if (curvw->vw_smode.mode == VT_PROCESS) 482 (void)vt_window_postswitch(curvw); 483 return (ret); 484 } 485 486 /* Notify owner process about terminal availability. */ 487 if (vw->vw_smode.mode == VT_PROCESS) { 488 ret = vt_window_postswitch(vw); 489 } 490 return (ret); 491 } 492 493 /* Switch window. */ 494 static int 495 vt_proc_window_switch(struct vt_window *vw) 496 { 497 struct vt_window *curvw; 498 struct vt_device *vd; 499 int ret; 500 501 /* Prevent switching to NULL */ 502 if (vw == NULL) { 503 DPRINTF(30, "%s: Cannot switch: vw is NULL.", __func__); 504 return (EINVAL); 505 } 506 vd = vw->vw_device; 507 curvw = vd->vd_curwindow; 508 509 /* Check if virtual terminal is locked */ 510 if (curvw->vw_flags & VWF_VTYLOCK) 511 return (EBUSY); 512 513 /* Check if switch already in progress */ 514 if (curvw->vw_flags & VWF_SWWAIT_REL) { 515 /* Check if switching to same window */ 516 if (curvw->vw_switch_to == vw) { 517 DPRINTF(30, "%s: Switch in progress to same vw.", __func__); 518 return (0); /* success */ 519 } 520 DPRINTF(30, "%s: Switch in progress to different vw.", __func__); 521 return (EBUSY); 522 } 523 524 /* Avoid switching to already selected window */ 525 if (vw == curvw) { 526 DPRINTF(30, "%s: Cannot switch: vw == curvw.", __func__); 527 return (0); /* success */ 528 } 529 530 /* 531 * Early check for an attempt to switch to a non-functional VT. 532 * The same check is done in vt_window_switch(), but it's better 533 * to fail as early as possible to avoid needless pre-switch 534 * actions. 535 */ 536 VT_LOCK(vd); 537 if ((vw->vw_flags & (VWF_OPENED|VWF_CONSOLE)) == 0) { 538 VT_UNLOCK(vd); 539 return (EINVAL); 540 } 541 VT_UNLOCK(vd); 542 543 /* Ask current process permission to switch away. */ 544 if (curvw->vw_smode.mode == VT_PROCESS) { 545 DPRINTF(30, "%s: VT_PROCESS ", __func__); 546 if (vt_proc_alive(curvw) == FALSE) { 547 DPRINTF(30, "Dead. Cleaning."); 548 /* Dead */ 549 } else { 550 DPRINTF(30, "%s: Signaling process.\n", __func__); 551 /* Alive, try to ask him. */ 552 ret = vt_window_preswitch(vw, curvw); 553 /* Wait for process answer or timeout. */ 554 return (ret); 555 } 556 DPRINTF(30, "\n"); 557 } 558 559 ret = vt_late_window_switch(vw); 560 return (ret); 561 } 562 563 /* Switch window ignoring process locking. */ 564 static int 565 vt_window_switch(struct vt_window *vw) 566 { 567 struct vt_device *vd = vw->vw_device; 568 struct vt_window *curvw = vd->vd_curwindow; 569 keyboard_t *kbd; 570 571 if (inside_vt_window_switch && KERNEL_PANICKED()) 572 return (0); 573 574 inside_vt_window_switch = true; 575 576 if (kdb_active) { 577 /* 578 * When grabbing the console for the debugger, avoid 579 * locks as that can result in deadlock. While this 580 * could use try locks, that wouldn't really make a 581 * difference as there are sufficient barriers in 582 * debugger entry/exit to be equivalent to 583 * successfully try-locking here. 584 */ 585 if (!(vw->vw_flags & (VWF_OPENED|VWF_CONSOLE))) { 586 inside_vt_window_switch = false; 587 return (EINVAL); 588 } 589 590 vd->vd_curwindow = vw; 591 vd->vd_flags |= VDF_INVALID; 592 if (vd->vd_driver->vd_postswitch) 593 vd->vd_driver->vd_postswitch(vd); 594 inside_vt_window_switch = false; 595 return (0); 596 } 597 598 VT_LOCK(vd); 599 if (curvw == vw) { 600 /* 601 * Nothing to do, except ensure the driver has the opportunity to 602 * switch to console mode when panicking, making sure the panic 603 * is readable (even when a GUI was using ttyv0). 604 */ 605 if ((kdb_active || KERNEL_PANICKED()) && 606 vd->vd_driver->vd_postswitch) 607 vd->vd_driver->vd_postswitch(vd); 608 inside_vt_window_switch = false; 609 VT_UNLOCK(vd); 610 return (0); 611 } 612 if (!(vw->vw_flags & (VWF_OPENED|VWF_CONSOLE))) { 613 inside_vt_window_switch = false; 614 VT_UNLOCK(vd); 615 return (EINVAL); 616 } 617 618 vt_suspend_flush_timer(vd); 619 620 vd->vd_curwindow = vw; 621 vd->vd_flags |= VDF_INVALID; 622 cv_broadcast(&vd->vd_winswitch); 623 VT_UNLOCK(vd); 624 625 if (vd->vd_driver->vd_postswitch) 626 vd->vd_driver->vd_postswitch(vd); 627 628 vt_resume_flush_timer(vw, 0); 629 630 /* Restore per-window keyboard mode. */ 631 mtx_lock(&Giant); 632 if ((kbd = vd->vd_keyboard) != NULL) { 633 if (curvw->vw_kbdmode == K_XLATE) 634 vt_save_kbd_state(curvw, kbd); 635 636 vt_update_kbd_mode(vw, kbd); 637 vt_update_kbd_state(vw, kbd); 638 } 639 mtx_unlock(&Giant); 640 DPRINTF(10, "%s(ttyv%d) done\n", __func__, vw->vw_number); 641 642 inside_vt_window_switch = false; 643 return (0); 644 } 645 646 void 647 vt_termsize(struct vt_device *vd, struct vt_font *vf, term_pos_t *size) 648 { 649 650 size->tp_row = vd->vd_height; 651 if (vt_draw_logo_cpus) 652 size->tp_row -= vt_logo_sprite_height; 653 size->tp_col = vd->vd_width; 654 if (vf != NULL) { 655 size->tp_row = MIN(size->tp_row / vf->vf_height, 656 PIXEL_HEIGHT(VT_FB_MAX_HEIGHT)); 657 size->tp_col = MIN(size->tp_col / vf->vf_width, 658 PIXEL_WIDTH(VT_FB_MAX_WIDTH)); 659 } 660 } 661 662 static inline void 663 vt_termrect(struct vt_device *vd, struct vt_font *vf, term_rect_t *rect) 664 { 665 666 rect->tr_begin.tp_row = rect->tr_begin.tp_col = 0; 667 if (vt_draw_logo_cpus) 668 rect->tr_begin.tp_row = vt_logo_sprite_height; 669 670 rect->tr_end.tp_row = vd->vd_height; 671 rect->tr_end.tp_col = vd->vd_width; 672 673 if (vf != NULL) { 674 rect->tr_begin.tp_row = 675 howmany(rect->tr_begin.tp_row, vf->vf_height); 676 677 rect->tr_end.tp_row = MIN(rect->tr_end.tp_row / vf->vf_height, 678 PIXEL_HEIGHT(VT_FB_MAX_HEIGHT)); 679 rect->tr_end.tp_col = MIN(rect->tr_end.tp_col / vf->vf_width, 680 PIXEL_WIDTH(VT_FB_MAX_WIDTH)); 681 } 682 } 683 684 void 685 vt_winsize(struct vt_device *vd, struct vt_font *vf, struct winsize *size) 686 { 687 688 size->ws_ypixel = vd->vd_height; 689 if (vt_draw_logo_cpus) 690 size->ws_ypixel -= vt_logo_sprite_height; 691 size->ws_row = size->ws_ypixel; 692 size->ws_col = size->ws_xpixel = vd->vd_width; 693 if (vf != NULL) { 694 size->ws_row = MIN(size->ws_row / vf->vf_height, 695 PIXEL_HEIGHT(VT_FB_MAX_HEIGHT)); 696 size->ws_col = MIN(size->ws_col / vf->vf_width, 697 PIXEL_WIDTH(VT_FB_MAX_WIDTH)); 698 } 699 } 700 701 void 702 vt_compute_drawable_area(struct vt_window *vw) 703 { 704 struct vt_device *vd; 705 struct vt_font *vf; 706 vt_axis_t height; 707 708 vd = vw->vw_device; 709 710 if (vw->vw_font == NULL) { 711 vw->vw_draw_area.tr_begin.tp_col = 0; 712 vw->vw_draw_area.tr_begin.tp_row = 0; 713 if (vt_draw_logo_cpus) 714 vw->vw_draw_area.tr_begin.tp_row = vt_logo_sprite_height; 715 vw->vw_draw_area.tr_end.tp_col = vd->vd_width; 716 vw->vw_draw_area.tr_end.tp_row = vd->vd_height; 717 return; 718 } 719 720 vf = vw->vw_font; 721 722 /* 723 * Compute the drawable area, so that the text is centered on 724 * the screen. 725 */ 726 727 height = vd->vd_height; 728 if (vt_draw_logo_cpus) 729 height -= vt_logo_sprite_height; 730 vw->vw_draw_area.tr_begin.tp_col = (vd->vd_width % vf->vf_width) / 2; 731 vw->vw_draw_area.tr_begin.tp_row = (height % vf->vf_height) / 2; 732 if (vt_draw_logo_cpus) 733 vw->vw_draw_area.tr_begin.tp_row += vt_logo_sprite_height; 734 vw->vw_draw_area.tr_end.tp_col = vw->vw_draw_area.tr_begin.tp_col + 735 rounddown(vd->vd_width, vf->vf_width); 736 vw->vw_draw_area.tr_end.tp_row = vw->vw_draw_area.tr_begin.tp_row + 737 rounddown(height, vf->vf_height); 738 } 739 740 static void 741 vt_scroll(struct vt_window *vw, int offset, int whence) 742 { 743 int diff; 744 term_pos_t size; 745 746 if ((vw->vw_flags & VWF_SCROLL) == 0) 747 return; 748 749 vt_termsize(vw->vw_device, vw->vw_font, &size); 750 751 diff = vthistory_seek(&vw->vw_buf, offset, whence); 752 if (diff) 753 vw->vw_device->vd_flags |= VDF_INVALID; 754 vt_resume_flush_timer(vw, 0); 755 } 756 757 static int 758 vt_machine_kbdevent(struct vt_device *vd, int c) 759 { 760 761 switch (c) { 762 case SPCLKEY | DBG: /* kbdmap(5) keyword `debug`. */ 763 if (vt_kbd_debug) { 764 kdb_enter(KDB_WHY_BREAK, "manual escape to debugger"); 765 #if VT_ALT_TO_ESC_HACK 766 /* 767 * There's an unfortunate conflict between SPCLKEY|DBG 768 * and VT_ALT_TO_ESC_HACK. Just assume they didn't mean 769 * it if we got to here. 770 */ 771 vd->vd_kbstate &= ~ALKED; 772 #endif 773 } 774 return (1); 775 case SPCLKEY | HALT: /* kbdmap(5) keyword `halt`. */ 776 if (vt_kbd_halt) 777 shutdown_nice(RB_HALT); 778 return (1); 779 case SPCLKEY | PASTE: /* kbdmap(5) keyword `paste`. */ 780 #ifndef SC_NO_CUTPASTE 781 /* Insert text from cut-paste buffer. */ 782 vt_mouse_paste(); 783 #endif 784 break; 785 case SPCLKEY | PDWN: /* kbdmap(5) keyword `pdwn`. */ 786 if (vt_kbd_poweroff) 787 shutdown_nice(RB_HALT|RB_POWEROFF); 788 return (1); 789 case SPCLKEY | PNC: /* kbdmap(5) keyword `panic`. */ 790 /* 791 * Request to immediate panic if sysctl 792 * kern.vt.enable_panic_key allow it. 793 */ 794 if (vt_kbd_panic) 795 panic("Forced by the panic key"); 796 return (1); 797 case SPCLKEY | RBT: /* kbdmap(5) keyword `boot`. */ 798 if (vt_kbd_reboot) 799 shutdown_nice(RB_AUTOBOOT); 800 return (1); 801 case SPCLKEY | SPSC: /* kbdmap(5) keyword `spsc`. */ 802 /* Force activatation/deactivation of the screen saver. */ 803 /* TODO */ 804 return (1); 805 case SPCLKEY | STBY: /* XXX Not present in kbdcontrol parser. */ 806 /* Put machine into Stand-By mode. */ 807 power_pm_suspend(POWER_SSTATE_TRANSITION_STANDBY); 808 return (1); 809 case SPCLKEY | SUSP: /* kbdmap(5) keyword `susp`. */ 810 /* Suspend machine. */ 811 power_pm_suspend(POWER_SSTATE_TRANSITION_SUSPEND); 812 return (1); 813 } 814 815 return (0); 816 } 817 818 static void 819 vt_scrollmode_kbdevent(struct vt_window *vw, int c, int console) 820 { 821 struct vt_device *vd; 822 term_pos_t size; 823 824 vd = vw->vw_device; 825 /* Only special keys handled in ScrollLock mode */ 826 if ((c & SPCLKEY) == 0) 827 return; 828 829 c &= ~SPCLKEY; 830 831 if (console == 0) { 832 if (c >= F_SCR && c <= MIN(L_SCR, F_SCR + VT_MAXWINDOWS - 1)) { 833 vw = vd->vd_windows[c - F_SCR]; 834 vt_proc_window_switch(vw); 835 return; 836 } 837 VT_LOCK(vd); 838 } 839 840 switch (c) { 841 case SLK: { 842 /* Turn scrolling off. */ 843 vt_scroll(vw, 0, VHS_END); 844 VTBUF_SLCK_DISABLE(&vw->vw_buf); 845 vw->vw_flags &= ~VWF_SCROLL; 846 break; 847 } 848 case FKEY | F(49): /* Home key. */ 849 vt_scroll(vw, 0, VHS_SET); 850 break; 851 case FKEY | F(50): /* Arrow up. */ 852 vt_scroll(vw, -1, VHS_CUR); 853 break; 854 case FKEY | F(51): /* Page up. */ 855 vt_termsize(vd, vw->vw_font, &size); 856 vt_scroll(vw, -size.tp_row, VHS_CUR); 857 break; 858 case FKEY | F(57): /* End key. */ 859 vt_scroll(vw, 0, VHS_END); 860 break; 861 case FKEY | F(58): /* Arrow down. */ 862 vt_scroll(vw, 1, VHS_CUR); 863 break; 864 case FKEY | F(59): /* Page down. */ 865 vt_termsize(vd, vw->vw_font, &size); 866 vt_scroll(vw, size.tp_row, VHS_CUR); 867 break; 868 } 869 870 if (console == 0) 871 VT_UNLOCK(vd); 872 } 873 874 static int 875 vt_processkey(keyboard_t *kbd, struct vt_device *vd, int c) 876 { 877 struct vt_window *vw = vd->vd_curwindow; 878 879 #ifdef RANDOM_ENABLE_KBD 880 random_harvest_queue(&c, sizeof(c), RANDOM_KEYBOARD); 881 #endif 882 #if VT_ALT_TO_ESC_HACK 883 if (c & RELKEY) { 884 switch (c & ~RELKEY) { 885 case (SPCLKEY | RALT): 886 if (vt_enable_altgr != 0) 887 break; 888 case (SPCLKEY | LALT): 889 vd->vd_kbstate &= ~ALKED; 890 } 891 /* Other keys ignored for RELKEY event. */ 892 return (0); 893 } else { 894 switch (c & ~RELKEY) { 895 case (SPCLKEY | RALT): 896 if (vt_enable_altgr != 0) 897 break; 898 case (SPCLKEY | LALT): 899 vd->vd_kbstate |= ALKED; 900 } 901 } 902 #else 903 if (c & RELKEY) 904 /* Other keys ignored for RELKEY event. */ 905 return (0); 906 #endif 907 908 if (vt_machine_kbdevent(vd, c)) 909 return (0); 910 911 if (vw->vw_flags & VWF_SCROLL) { 912 vt_scrollmode_kbdevent(vw, c, 0/* Not a console */); 913 /* Scroll mode keys handled, nothing to do more. */ 914 return (0); 915 } 916 917 if (c & SPCLKEY) { 918 c &= ~SPCLKEY; 919 920 if (c >= F_SCR && c <= MIN(L_SCR, F_SCR + VT_MAXWINDOWS - 1)) { 921 vw = vd->vd_windows[c - F_SCR]; 922 vt_proc_window_switch(vw); 923 return (0); 924 } 925 926 switch (c) { 927 case NEXT: 928 /* Switch to next VT. */ 929 c = (vw->vw_number + 1) % VT_MAXWINDOWS; 930 vw = vd->vd_windows[c]; 931 vt_proc_window_switch(vw); 932 return (0); 933 case PREV: 934 /* Switch to previous VT. */ 935 c = (vw->vw_number + VT_MAXWINDOWS - 1) % VT_MAXWINDOWS; 936 vw = vd->vd_windows[c]; 937 vt_proc_window_switch(vw); 938 return (0); 939 case SLK: { 940 vt_save_kbd_state(vw, kbd); 941 VT_LOCK(vd); 942 if (vw->vw_kbdstate & SLKED) { 943 /* Turn scrolling on. */ 944 vw->vw_flags |= VWF_SCROLL; 945 VTBUF_SLCK_ENABLE(&vw->vw_buf); 946 } else { 947 /* Turn scrolling off. */ 948 vw->vw_flags &= ~VWF_SCROLL; 949 VTBUF_SLCK_DISABLE(&vw->vw_buf); 950 vt_scroll(vw, 0, VHS_END); 951 } 952 VT_UNLOCK(vd); 953 break; 954 } 955 case BKEY | BTAB: /* Back tab (usually, shift+tab). */ 956 terminal_input_special(vw->vw_terminal, TKEY_BTAB); 957 break; 958 case FKEY | F(1): case FKEY | F(2): case FKEY | F(3): 959 case FKEY | F(4): case FKEY | F(5): case FKEY | F(6): 960 case FKEY | F(7): case FKEY | F(8): case FKEY | F(9): 961 case FKEY | F(10): case FKEY | F(11): case FKEY | F(12): 962 /* F1 through F12 keys. */ 963 terminal_input_special(vw->vw_terminal, 964 TKEY_F1 + c - (FKEY | F(1))); 965 break; 966 case FKEY | F(49): /* Home key. */ 967 terminal_input_special(vw->vw_terminal, TKEY_HOME); 968 break; 969 case FKEY | F(50): /* Arrow up. */ 970 terminal_input_special(vw->vw_terminal, TKEY_UP); 971 break; 972 case FKEY | F(51): /* Page up. */ 973 terminal_input_special(vw->vw_terminal, TKEY_PAGE_UP); 974 break; 975 case FKEY | F(53): /* Arrow left. */ 976 terminal_input_special(vw->vw_terminal, TKEY_LEFT); 977 break; 978 case FKEY | F(55): /* Arrow right. */ 979 terminal_input_special(vw->vw_terminal, TKEY_RIGHT); 980 break; 981 case FKEY | F(57): /* End key. */ 982 terminal_input_special(vw->vw_terminal, TKEY_END); 983 break; 984 case FKEY | F(58): /* Arrow down. */ 985 terminal_input_special(vw->vw_terminal, TKEY_DOWN); 986 break; 987 case FKEY | F(59): /* Page down. */ 988 terminal_input_special(vw->vw_terminal, TKEY_PAGE_DOWN); 989 break; 990 case FKEY | F(60): /* Insert key. */ 991 terminal_input_special(vw->vw_terminal, TKEY_INSERT); 992 break; 993 case FKEY | F(61): /* Delete key. */ 994 terminal_input_special(vw->vw_terminal, TKEY_DELETE); 995 break; 996 } 997 } else if (KEYFLAGS(c) == 0) { 998 /* Don't do UTF-8 conversion when doing raw mode. */ 999 if (vw->vw_kbdmode == K_XLATE) { 1000 #if VT_ALT_TO_ESC_HACK 1001 if (vd->vd_kbstate & ALKED) { 1002 /* 1003 * Prepend ESC sequence if one of ALT keys down. 1004 */ 1005 terminal_input_char(vw->vw_terminal, 0x1b); 1006 } 1007 #endif 1008 #if defined(KDB) 1009 kdb_alt_break(c, &vd->vd_altbrk); 1010 #endif 1011 terminal_input_char(vw->vw_terminal, KEYCHAR(c)); 1012 } else 1013 terminal_input_raw(vw->vw_terminal, c); 1014 } 1015 return (0); 1016 } 1017 1018 static int 1019 vt_kbdevent(keyboard_t *kbd, int event, void *arg) 1020 { 1021 struct vt_device *vd = arg; 1022 int c; 1023 1024 switch (event) { 1025 case KBDIO_KEYINPUT: 1026 break; 1027 case KBDIO_UNLOADING: 1028 mtx_lock(&Giant); 1029 vd->vd_keyboard = NULL; 1030 kbd_release(kbd, (void *)vd); 1031 mtx_unlock(&Giant); 1032 return (0); 1033 default: 1034 return (EINVAL); 1035 } 1036 1037 while ((c = kbdd_read_char(kbd, 0)) != NOKEY) 1038 vt_processkey(kbd, vd, c); 1039 1040 return (0); 1041 } 1042 1043 static int 1044 vt_allocate_keyboard(struct vt_device *vd) 1045 { 1046 int grabbed, i, idx0, idx; 1047 keyboard_t *k0, *k; 1048 keyboard_info_t ki; 1049 1050 /* 1051 * If vt_upgrade() happens while the console is grabbed, we are 1052 * potentially going to switch keyboard devices while the keyboard is in 1053 * use. Unwind the grabbing of the current keyboard first, then we will 1054 * re-grab the new keyboard below, before we return. 1055 */ 1056 if (vd->vd_curwindow == &vt_conswindow) { 1057 grabbed = vd->vd_curwindow->vw_grabbed; 1058 for (i = 0; i < grabbed; ++i) 1059 vtterm_cnungrab_noswitch(vd, vd->vd_curwindow); 1060 } 1061 1062 idx0 = kbd_allocate("kbdmux", -1, vd, vt_kbdevent, vd); 1063 if (idx0 >= 0) { 1064 DPRINTF(20, "%s: kbdmux allocated, idx = %d\n", __func__, idx0); 1065 k0 = kbd_get_keyboard(idx0); 1066 1067 for (idx = kbd_find_keyboard2("*", -1, 0); 1068 idx != -1; 1069 idx = kbd_find_keyboard2("*", -1, idx + 1)) { 1070 k = kbd_get_keyboard(idx); 1071 1072 if (idx == idx0 || KBD_IS_BUSY(k)) 1073 continue; 1074 1075 bzero(&ki, sizeof(ki)); 1076 strncpy(ki.kb_name, k->kb_name, sizeof(ki.kb_name)); 1077 ki.kb_name[sizeof(ki.kb_name) - 1] = '\0'; 1078 ki.kb_unit = k->kb_unit; 1079 1080 kbdd_ioctl(k0, KBADDKBD, (caddr_t) &ki); 1081 } 1082 } else { 1083 DPRINTF(20, "%s: no kbdmux allocated\n", __func__); 1084 idx0 = kbd_allocate("*", -1, vd, vt_kbdevent, vd); 1085 if (idx0 < 0) { 1086 DPRINTF(10, "%s: No keyboard found.\n", __func__); 1087 return (-1); 1088 } 1089 k0 = kbd_get_keyboard(idx0); 1090 } 1091 vd->vd_keyboard = k0; 1092 DPRINTF(20, "%s: vd_keyboard = %d\n", __func__, 1093 vd->vd_keyboard->kb_index); 1094 1095 if (vd->vd_curwindow == &vt_conswindow) { 1096 for (i = 0; i < grabbed; ++i) 1097 vtterm_cngrab_noswitch(vd, vd->vd_curwindow); 1098 } 1099 1100 return (idx0); 1101 } 1102 1103 #define DEVCTL_LEN 64 1104 static void 1105 vtterm_devctl(bool enabled, bool hushed, int hz, sbintime_t duration) 1106 { 1107 struct sbuf sb; 1108 char *buf; 1109 1110 buf = malloc(DEVCTL_LEN, M_VT, M_NOWAIT); 1111 if (buf == NULL) 1112 return; 1113 sbuf_new(&sb, buf, DEVCTL_LEN, SBUF_FIXEDLEN); 1114 sbuf_printf(&sb, "enabled=%s hushed=%s hz=%d duration_ms=%d", 1115 enabled ? "true" : "false", hushed ? "true" : "false", 1116 hz, (int)(duration / SBT_1MS)); 1117 sbuf_finish(&sb); 1118 if (sbuf_error(&sb) == 0) 1119 devctl_notify("VT", "BELL", "RING", sbuf_data(&sb)); 1120 sbuf_delete(&sb); 1121 free(buf, M_VT); 1122 } 1123 1124 static void 1125 vtterm_bell(struct terminal *tm) 1126 { 1127 struct vt_window *vw = tm->tm_softc; 1128 struct vt_device *vd = vw->vw_device; 1129 1130 vtterm_devctl(vt_enable_bell, vd->vd_flags & VDF_QUIET_BELL, 1131 vw->vw_bell_pitch, vw->vw_bell_duration); 1132 1133 if (!vt_enable_bell) 1134 return; 1135 1136 if (vd->vd_flags & VDF_QUIET_BELL) 1137 return; 1138 1139 if (vw->vw_bell_pitch == 0 || 1140 vw->vw_bell_duration == 0) 1141 return; 1142 1143 sysbeep(vw->vw_bell_pitch, vw->vw_bell_duration); 1144 } 1145 1146 /* 1147 * Beep with user-provided frequency and duration as specified by a KDMKTONE 1148 * ioctl (compatible with Linux). The frequency is specified as a 8254 PIT 1149 * divisor for a 1.19MHz clock. 1150 * 1151 * See https://tldp.org/LDP/lpg/node83.html. 1152 */ 1153 static void 1154 vtterm_beep(struct terminal *tm, u_int param) 1155 { 1156 u_int freq; 1157 sbintime_t period; 1158 struct vt_window *vw = tm->tm_softc; 1159 struct vt_device *vd = vw->vw_device; 1160 1161 if ((param == 0) || ((param & 0xffff) == 0)) { 1162 vtterm_bell(tm); 1163 return; 1164 } 1165 1166 /* XXX period unit is supposed to be "timer ticks." */ 1167 period = ((param >> 16) & 0xffff) * SBT_1MS; 1168 freq = 1193182 / (param & 0xffff); 1169 1170 vtterm_devctl(vt_enable_bell, vd->vd_flags & VDF_QUIET_BELL, 1171 freq, period); 1172 1173 if (!vt_enable_bell) 1174 return; 1175 1176 sysbeep(freq, period); 1177 } 1178 1179 static void 1180 vtterm_cursor(struct terminal *tm, const term_pos_t *p) 1181 { 1182 struct vt_window *vw = tm->tm_softc; 1183 1184 vtbuf_cursor_position(&vw->vw_buf, p); 1185 } 1186 1187 static void 1188 vtterm_putchar(struct terminal *tm, const term_pos_t *p, term_char_t c) 1189 { 1190 struct vt_window *vw = tm->tm_softc; 1191 1192 vtbuf_putchar(&vw->vw_buf, p, c); 1193 } 1194 1195 static void 1196 vtterm_fill(struct terminal *tm, const term_rect_t *r, term_char_t c) 1197 { 1198 struct vt_window *vw = tm->tm_softc; 1199 1200 vtbuf_fill(&vw->vw_buf, r, c); 1201 } 1202 1203 static void 1204 vtterm_copy(struct terminal *tm, const term_rect_t *r, 1205 const term_pos_t *p) 1206 { 1207 struct vt_window *vw = tm->tm_softc; 1208 1209 vtbuf_copy(&vw->vw_buf, r, p); 1210 } 1211 1212 static void 1213 vtterm_param(struct terminal *tm, int cmd, unsigned int arg) 1214 { 1215 struct vt_window *vw = tm->tm_softc; 1216 1217 switch (cmd) { 1218 case TP_SETLOCALCURSOR: 1219 /* 1220 * 0 means normal (usually block), 1 means hidden, and 1221 * 2 means blinking (always block) for compatibility with 1222 * syscons. We don't support any changes except hiding, 1223 * so must map 2 to 0. 1224 */ 1225 arg = (arg == 1) ? 0 : 1; 1226 /* FALLTHROUGH */ 1227 case TP_SHOWCURSOR: 1228 vtbuf_cursor_visibility(&vw->vw_buf, arg); 1229 vt_resume_flush_timer(vw, 0); 1230 break; 1231 case TP_MOUSE: 1232 vw->vw_mouse_level = arg; 1233 break; 1234 case TP_SETBELLPD: 1235 vw->vw_bell_pitch = TP_SETBELLPD_PITCH(arg); 1236 vw->vw_bell_duration = 1237 TICKS_2_MSEC(TP_SETBELLPD_DURATION(arg)) * SBT_1MS; 1238 break; 1239 } 1240 } 1241 1242 void 1243 vt_determine_colors(term_char_t c, int cursor, 1244 term_color_t *fg, term_color_t *bg) 1245 { 1246 term_color_t tmp; 1247 int invert; 1248 1249 invert = 0; 1250 1251 *fg = TCHAR_FGCOLOR(c); 1252 if (TCHAR_FORMAT(c) & TF_BOLD) 1253 *fg = TCOLOR_LIGHT(*fg); 1254 *bg = TCHAR_BGCOLOR(c); 1255 if (TCHAR_FORMAT(c) & TF_BLINK) 1256 *bg = TCOLOR_LIGHT(*bg); 1257 1258 if (TCHAR_FORMAT(c) & TF_REVERSE) 1259 invert ^= 1; 1260 if (cursor) 1261 invert ^= 1; 1262 1263 if (invert) { 1264 tmp = *fg; 1265 *fg = *bg; 1266 *bg = tmp; 1267 } 1268 } 1269 1270 #ifndef SC_NO_CUTPASTE 1271 int 1272 vt_is_cursor_in_area(const struct vt_device *vd, const term_rect_t *area) 1273 { 1274 unsigned int mx, my; 1275 1276 /* 1277 * We use the cursor position saved during the current refresh, 1278 * in case the cursor moved since. 1279 */ 1280 mx = vd->vd_mx_drawn + vd->vd_curwindow->vw_draw_area.tr_begin.tp_col; 1281 my = vd->vd_my_drawn + vd->vd_curwindow->vw_draw_area.tr_begin.tp_row; 1282 1283 if (mx >= area->tr_end.tp_col || 1284 mx + vd->vd_mcursor->width <= area->tr_begin.tp_col || 1285 my >= area->tr_end.tp_row || 1286 my + vd->vd_mcursor->height <= area->tr_begin.tp_row) 1287 return (0); 1288 return (1); 1289 } 1290 1291 static void 1292 vt_mark_mouse_position_as_dirty(struct vt_device *vd, int locked) 1293 { 1294 term_rect_t area; 1295 struct vt_window *vw; 1296 struct vt_font *vf; 1297 int x, y; 1298 1299 vw = vd->vd_curwindow; 1300 vf = vw->vw_font; 1301 1302 x = vd->vd_mx_drawn; 1303 y = vd->vd_my_drawn; 1304 1305 if (vf != NULL) { 1306 area.tr_begin.tp_col = x / vf->vf_width; 1307 area.tr_begin.tp_row = y / vf->vf_height; 1308 area.tr_end.tp_col = 1309 ((x + vd->vd_mcursor->width) / vf->vf_width) + 1; 1310 area.tr_end.tp_row = 1311 ((y + vd->vd_mcursor->height) / vf->vf_height) + 1; 1312 } else { 1313 /* 1314 * No font loaded (ie. vt_vga operating in textmode). 1315 * 1316 * FIXME: This fake area needs to be revisited once the 1317 * mouse cursor is supported in vt_vga's textmode. 1318 */ 1319 area.tr_begin.tp_col = x; 1320 area.tr_begin.tp_row = y; 1321 area.tr_end.tp_col = x + 2; 1322 area.tr_end.tp_row = y + 2; 1323 } 1324 1325 if (!locked) 1326 vtbuf_lock(&vw->vw_buf); 1327 if (vd->vd_driver->vd_invalidate_text) 1328 vd->vd_driver->vd_invalidate_text(vd, &area); 1329 vtbuf_dirty(&vw->vw_buf, &area); 1330 if (!locked) 1331 vtbuf_unlock(&vw->vw_buf); 1332 } 1333 #endif 1334 1335 static void 1336 vt_set_border(struct vt_device *vd, const term_rect_t *area, 1337 term_color_t c) 1338 { 1339 vd_drawrect_t *drawrect = vd->vd_driver->vd_drawrect; 1340 1341 if (drawrect == NULL) 1342 return; 1343 1344 /* Top bar */ 1345 if (area->tr_begin.tp_row > 0) 1346 drawrect(vd, 0, 0, vd->vd_width - 1, 1347 area->tr_begin.tp_row - 1, 1, c); 1348 1349 /* Left bar */ 1350 if (area->tr_begin.tp_col > 0) 1351 drawrect(vd, 0, area->tr_begin.tp_row, 1352 area->tr_begin.tp_col - 1, area->tr_end.tp_row - 1, 1, c); 1353 1354 /* Right bar */ 1355 if (area->tr_end.tp_col < vd->vd_width) 1356 drawrect(vd, area->tr_end.tp_col, area->tr_begin.tp_row, 1357 vd->vd_width - 1, area->tr_end.tp_row - 1, 1, c); 1358 1359 /* Bottom bar */ 1360 if (area->tr_end.tp_row < vd->vd_height) 1361 drawrect(vd, 0, area->tr_end.tp_row, vd->vd_width - 1, 1362 vd->vd_height - 1, 1, c); 1363 } 1364 1365 static void 1366 vt_flush_to_buffer(struct vt_device *vd, 1367 const struct vt_window *vw, const term_rect_t *area) 1368 { 1369 unsigned int col, row; 1370 term_char_t c; 1371 term_color_t fg, bg; 1372 size_t z; 1373 1374 for (row = area->tr_begin.tp_row; row < area->tr_end.tp_row; ++row) { 1375 for (col = area->tr_begin.tp_col; col < area->tr_end.tp_col; 1376 ++col) { 1377 z = row * PIXEL_WIDTH(VT_FB_MAX_WIDTH) + col; 1378 if (z >= PIXEL_HEIGHT(VT_FB_MAX_HEIGHT) * 1379 PIXEL_WIDTH(VT_FB_MAX_WIDTH)) 1380 continue; 1381 1382 c = VTBUF_GET_FIELD(&vw->vw_buf, row, col); 1383 vt_determine_colors(c, 1384 VTBUF_ISCURSOR(&vw->vw_buf, row, col), &fg, &bg); 1385 1386 if (vd->vd_drawn && (vd->vd_drawn[z] == c) && 1387 vd->vd_drawnfg && (vd->vd_drawnfg[z] == fg) && 1388 vd->vd_drawnbg && (vd->vd_drawnbg[z] == bg)) { 1389 vd->vd_pos_to_flush[z] = false; 1390 continue; 1391 } 1392 1393 vd->vd_pos_to_flush[z] = true; 1394 1395 if (vd->vd_drawn) 1396 vd->vd_drawn[z] = c; 1397 if (vd->vd_drawnfg) 1398 vd->vd_drawnfg[z] = fg; 1399 if (vd->vd_drawnbg) 1400 vd->vd_drawnbg[z] = bg; 1401 } 1402 } 1403 } 1404 1405 static void 1406 vt_bitblt_buffer(struct vt_device *vd, const struct vt_window *vw, 1407 const term_rect_t *area) 1408 { 1409 unsigned int col, row, x, y; 1410 struct vt_font *vf; 1411 term_char_t c; 1412 term_color_t fg, bg; 1413 const uint8_t *pattern; 1414 size_t z; 1415 1416 vf = vw->vw_font; 1417 1418 for (row = area->tr_begin.tp_row; row < area->tr_end.tp_row; ++row) { 1419 for (col = area->tr_begin.tp_col; col < area->tr_end.tp_col; 1420 ++col) { 1421 x = col * vf->vf_width + 1422 vw->vw_draw_area.tr_begin.tp_col; 1423 y = row * vf->vf_height + 1424 vw->vw_draw_area.tr_begin.tp_row; 1425 1426 z = row * PIXEL_WIDTH(VT_FB_MAX_WIDTH) + col; 1427 if (z >= PIXEL_HEIGHT(VT_FB_MAX_HEIGHT) * 1428 PIXEL_WIDTH(VT_FB_MAX_WIDTH)) 1429 continue; 1430 if (!vd->vd_pos_to_flush[z]) 1431 continue; 1432 1433 c = vd->vd_drawn[z]; 1434 fg = vd->vd_drawnfg[z]; 1435 bg = vd->vd_drawnbg[z]; 1436 1437 pattern = vtfont_lookup(vf, c); 1438 vd->vd_driver->vd_bitblt_bmp(vd, vw, 1439 pattern, NULL, vf->vf_width, vf->vf_height, 1440 x, y, fg, bg); 1441 } 1442 } 1443 1444 #ifndef SC_NO_CUTPASTE 1445 if (!vd->vd_mshown) 1446 return; 1447 1448 term_rect_t drawn_area; 1449 1450 drawn_area.tr_begin.tp_col = area->tr_begin.tp_col * vf->vf_width; 1451 drawn_area.tr_begin.tp_row = area->tr_begin.tp_row * vf->vf_height; 1452 drawn_area.tr_end.tp_col = area->tr_end.tp_col * vf->vf_width; 1453 drawn_area.tr_end.tp_row = area->tr_end.tp_row * vf->vf_height; 1454 1455 if (vt_is_cursor_in_area(vd, &drawn_area)) { 1456 vd->vd_driver->vd_bitblt_bmp(vd, vw, 1457 vd->vd_mcursor->map, vd->vd_mcursor->mask, 1458 vd->vd_mcursor->width, vd->vd_mcursor->height, 1459 vd->vd_mx_drawn + vw->vw_draw_area.tr_begin.tp_col, 1460 vd->vd_my_drawn + vw->vw_draw_area.tr_begin.tp_row, 1461 vd->vd_mcursor_fg, vd->vd_mcursor_bg); 1462 } 1463 #endif 1464 } 1465 1466 static void 1467 vt_draw_decorations(struct vt_device *vd) 1468 { 1469 struct vt_window *vw; 1470 const teken_attr_t *a; 1471 1472 vw = vd->vd_curwindow; 1473 1474 a = teken_get_curattr(&vw->vw_terminal->tm_emulator); 1475 vt_set_border(vd, &vw->vw_draw_area, a->ta_bgcolor); 1476 1477 if (vt_draw_logo_cpus) 1478 vtterm_draw_cpu_logos(vd); 1479 } 1480 1481 static int 1482 vt_flush(struct vt_device *vd) 1483 { 1484 struct vt_window *vw; 1485 struct vt_font *vf; 1486 term_rect_t tarea; 1487 #ifndef SC_NO_CUTPASTE 1488 int cursor_was_shown, cursor_moved; 1489 #endif 1490 bool needs_refresh; 1491 1492 if (inside_vt_flush && KERNEL_PANICKED()) 1493 return (0); 1494 1495 vw = vd->vd_curwindow; 1496 if (vw == NULL) 1497 return (0); 1498 1499 if (vd->vd_flags & VDF_SPLASH || vw->vw_flags & VWF_BUSY) 1500 return (0); 1501 1502 vf = vw->vw_font; 1503 if (((vd->vd_flags & VDF_TEXTMODE) == 0) && (vf == NULL)) 1504 return (0); 1505 1506 VT_FLUSH_LOCK(vd); 1507 1508 vtbuf_lock(&vw->vw_buf); 1509 inside_vt_flush = true; 1510 1511 #ifndef SC_NO_CUTPASTE 1512 cursor_was_shown = vd->vd_mshown; 1513 cursor_moved = (vd->vd_mx != vd->vd_mx_drawn || 1514 vd->vd_my != vd->vd_my_drawn); 1515 1516 /* Check if the cursor should be displayed or not. */ 1517 if ((vd->vd_flags & VDF_MOUSECURSOR) && /* Mouse support enabled. */ 1518 !(vw->vw_flags & VWF_MOUSE_HIDE) && /* Cursor displayed. */ 1519 !kdb_active && !KERNEL_PANICKED()) { /* DDB inactive. */ 1520 vd->vd_mshown = 1; 1521 } else { 1522 vd->vd_mshown = 0; 1523 } 1524 1525 /* 1526 * If the cursor changed display state or moved, we must mark 1527 * the old position as dirty, so that it's erased. 1528 */ 1529 if (cursor_was_shown != vd->vd_mshown || 1530 (vd->vd_mshown && cursor_moved)) 1531 vt_mark_mouse_position_as_dirty(vd, true); 1532 1533 /* 1534 * Save position of the mouse cursor. It's used by backends to 1535 * know where to draw the cursor and during the next refresh to 1536 * erase the previous position. 1537 */ 1538 vd->vd_mx_drawn = vd->vd_mx; 1539 vd->vd_my_drawn = vd->vd_my; 1540 1541 /* 1542 * If the cursor is displayed and has moved since last refresh, 1543 * mark the new position as dirty. 1544 */ 1545 if (vd->vd_mshown && cursor_moved) 1546 vt_mark_mouse_position_as_dirty(vd, true); 1547 #endif 1548 1549 vtbuf_undirty(&vw->vw_buf, &tarea); 1550 1551 /* Force a full redraw when the screen contents might be invalid. */ 1552 needs_refresh = false; 1553 if (vd->vd_flags & (VDF_INVALID | VDF_SUSPENDED)) { 1554 needs_refresh = true; 1555 vd->vd_flags &= ~VDF_INVALID; 1556 1557 vt_termrect(vd, vf, &tarea); 1558 if (vd->vd_driver->vd_invalidate_text) 1559 vd->vd_driver->vd_invalidate_text(vd, &tarea); 1560 } 1561 1562 if (tarea.tr_begin.tp_col < tarea.tr_end.tp_col) { 1563 if (vd->vd_driver->vd_bitblt_after_vtbuf_unlock) { 1564 /* 1565 * When `vd_bitblt_after_vtbuf_unlock` is set to true, 1566 * we first remember the characters to redraw. They are 1567 * already copied to the `vd_drawn` arrays. 1568 * 1569 * We then unlock vt_buf and proceed with the actual 1570 * drawing using the backend driver. 1571 */ 1572 vt_flush_to_buffer(vd, vw, &tarea); 1573 vtbuf_unlock(&vw->vw_buf); 1574 vt_bitblt_buffer(vd, vw, &tarea); 1575 1576 if (needs_refresh) 1577 vt_draw_decorations(vd); 1578 1579 /* 1580 * We can reset `inside_vt_flush` after unlocking vtbuf 1581 * here because we also hold vt_flush_lock in this code 1582 * path. 1583 */ 1584 inside_vt_flush = false; 1585 } else { 1586 /* 1587 * When `vd_bitblt_after_vtbuf_unlock` is false, we use 1588 * the backend's `vd_bitblt_text` callback directly. 1589 */ 1590 vd->vd_driver->vd_bitblt_text(vd, vw, &tarea); 1591 1592 if (needs_refresh) 1593 vt_draw_decorations(vd); 1594 1595 inside_vt_flush = false; 1596 vtbuf_unlock(&vw->vw_buf); 1597 } 1598 1599 VT_FLUSH_UNLOCK(vd); 1600 1601 return (1); 1602 } 1603 1604 inside_vt_flush = false; 1605 vtbuf_unlock(&vw->vw_buf); 1606 1607 VT_FLUSH_UNLOCK(vd); 1608 1609 return (0); 1610 } 1611 1612 static void 1613 vt_timer(void *arg) 1614 { 1615 struct vt_device *vd; 1616 int changed; 1617 1618 vd = arg; 1619 /* Update screen if required. */ 1620 changed = vt_flush(vd); 1621 1622 /* Schedule for next update. */ 1623 if (changed) 1624 vt_schedule_flush(vd, 0); 1625 else 1626 vd->vd_timer_armed = 0; 1627 } 1628 1629 static void 1630 vtterm_pre_input(struct terminal *tm) 1631 { 1632 struct vt_window *vw = tm->tm_softc; 1633 1634 if (inside_vt_flush && KERNEL_PANICKED()) 1635 return; 1636 1637 vtbuf_lock(&vw->vw_buf); 1638 } 1639 1640 static void 1641 vtterm_post_input(struct terminal *tm) 1642 { 1643 struct vt_window *vw = tm->tm_softc; 1644 1645 if (inside_vt_flush && KERNEL_PANICKED()) 1646 return; 1647 1648 vtbuf_unlock(&vw->vw_buf); 1649 vt_resume_flush_timer(vw, 0); 1650 } 1651 1652 static void 1653 vtterm_done(struct terminal *tm) 1654 { 1655 struct vt_window *vw = tm->tm_softc; 1656 struct vt_device *vd = vw->vw_device; 1657 1658 if (kdb_active || KERNEL_PANICKED()) { 1659 /* Switch to the debugger. */ 1660 if (vd->vd_curwindow != vw) { 1661 vd->vd_curwindow = vw; 1662 vd->vd_flags |= VDF_INVALID; 1663 if (vd->vd_driver->vd_postswitch) 1664 vd->vd_driver->vd_postswitch(vd); 1665 } 1666 vd->vd_flags &= ~VDF_SPLASH; 1667 vt_flush(vd); 1668 } else if (vt_slow_down > 0) { 1669 int i, j; 1670 for (i = 0; i < vt_slow_down; i++) { 1671 for (j = 0; j < 1000; j++) 1672 vt_flush(vd); 1673 } 1674 } else if (!(vd->vd_flags & VDF_ASYNC)) { 1675 vt_flush(vd); 1676 } 1677 } 1678 1679 #ifdef DEV_SPLASH 1680 static void 1681 vtterm_splash(struct vt_device *vd) 1682 { 1683 struct splash_info *si; 1684 uintptr_t image; 1685 vt_axis_t top, left; 1686 1687 si = MD_FETCH(preload_kmdp, MODINFOMD_SPLASH, struct splash_info *); 1688 if (!(vd->vd_flags & VDF_TEXTMODE) && (boothowto & RB_MUTE)) { 1689 if (si == NULL) { 1690 top = (vd->vd_height - vt_logo_height) / 2; 1691 left = (vd->vd_width - vt_logo_width) / 2; 1692 vd->vd_driver->vd_bitblt_bmp(vd, vd->vd_curwindow, 1693 vt_logo_image, NULL, vt_logo_width, vt_logo_height, 1694 left, top, TC_WHITE, TC_BLACK); 1695 } else { 1696 if (si->si_depth != 4) 1697 return; 1698 image = (uintptr_t)si + sizeof(struct splash_info); 1699 image = roundup2(image, 8); 1700 top = (vd->vd_height - si->si_height) / 2; 1701 left = (vd->vd_width - si->si_width) / 2; 1702 vd->vd_driver->vd_bitblt_argb(vd, vd->vd_curwindow, 1703 (unsigned char *)image, si->si_width, si->si_height, 1704 left, top); 1705 } 1706 vd->vd_flags |= VDF_SPLASH; 1707 } 1708 } 1709 #endif 1710 1711 static struct vt_font * 1712 parse_font_info_static(struct font_info *fi) 1713 { 1714 struct vt_font *vfp; 1715 uintptr_t ptr; 1716 uint32_t checksum; 1717 1718 if (fi == NULL) 1719 return (NULL); 1720 1721 ptr = (uintptr_t)fi; 1722 /* 1723 * Compute and verify checksum. The total sum of all the fields 1724 * must be 0. 1725 */ 1726 checksum = fi->fi_width; 1727 checksum += fi->fi_height; 1728 checksum += fi->fi_bitmap_size; 1729 for (unsigned i = 0; i < VFNT_MAPS; i++) 1730 checksum += fi->fi_map_count[i]; 1731 1732 if (checksum + fi->fi_checksum != 0) 1733 return (NULL); 1734 1735 ptr += sizeof(struct font_info); 1736 ptr = roundup2(ptr, 8); 1737 1738 vfp = &vt_font_loader; 1739 vfp->vf_height = fi->fi_height; 1740 vfp->vf_width = fi->fi_width; 1741 /* This is default font, set refcount 1 to disable removal. */ 1742 vfp->vf_refcount = 1; 1743 for (unsigned i = 0; i < VFNT_MAPS; i++) { 1744 if (fi->fi_map_count[i] == 0) 1745 continue; 1746 vfp->vf_map_count[i] = fi->fi_map_count[i]; 1747 vfp->vf_map[i] = (vfnt_map_t *)ptr; 1748 ptr += (fi->fi_map_count[i] * sizeof(vfnt_map_t)); 1749 ptr = roundup2(ptr, 8); 1750 } 1751 vfp->vf_bytes = (uint8_t *)ptr; 1752 return (vfp); 1753 } 1754 1755 /* 1756 * Set up default font with allocated data structures. 1757 * However, we can not set refcount here, because it is already set and 1758 * incremented in vtterm_cnprobe() to avoid being released by font load from 1759 * userland. 1760 */ 1761 static struct vt_font * 1762 parse_font_info(struct font_info *fi) 1763 { 1764 struct vt_font *vfp; 1765 uintptr_t ptr; 1766 uint32_t checksum; 1767 size_t size; 1768 1769 if (fi == NULL) 1770 return (NULL); 1771 1772 ptr = (uintptr_t)fi; 1773 /* 1774 * Compute and verify checksum. The total sum of all the fields 1775 * must be 0. 1776 */ 1777 checksum = fi->fi_width; 1778 checksum += fi->fi_height; 1779 checksum += fi->fi_bitmap_size; 1780 for (unsigned i = 0; i < VFNT_MAPS; i++) 1781 checksum += fi->fi_map_count[i]; 1782 1783 if (checksum + fi->fi_checksum != 0) 1784 return (NULL); 1785 1786 ptr += sizeof(struct font_info); 1787 ptr = roundup2(ptr, 8); 1788 1789 vfp = &vt_font_loader; 1790 vfp->vf_height = fi->fi_height; 1791 vfp->vf_width = fi->fi_width; 1792 for (unsigned i = 0; i < VFNT_MAPS; i++) { 1793 if (fi->fi_map_count[i] == 0) 1794 continue; 1795 vfp->vf_map_count[i] = fi->fi_map_count[i]; 1796 size = fi->fi_map_count[i] * sizeof(vfnt_map_t); 1797 vfp->vf_map[i] = malloc(size, M_VT, M_WAITOK | M_ZERO); 1798 bcopy((vfnt_map_t *)ptr, vfp->vf_map[i], size); 1799 ptr += size; 1800 ptr = roundup2(ptr, 8); 1801 } 1802 vfp->vf_bytes = malloc(fi->fi_bitmap_size, M_VT, M_WAITOK | M_ZERO); 1803 bcopy((uint8_t *)ptr, vfp->vf_bytes, fi->fi_bitmap_size); 1804 return (vfp); 1805 } 1806 1807 static void 1808 vt_init_font(void *arg) 1809 { 1810 struct font_info *fi; 1811 struct vt_font *font; 1812 1813 fi = MD_FETCH(preload_kmdp, MODINFOMD_FONT, struct font_info *); 1814 1815 font = parse_font_info(fi); 1816 if (font != NULL) 1817 vt_font_assigned = font; 1818 } 1819 1820 SYSINIT(vt_init_font, SI_SUB_KMEM, SI_ORDER_ANY, vt_init_font, &vt_consdev); 1821 1822 static void 1823 vt_init_font_static(void) 1824 { 1825 struct font_info *fi; 1826 struct vt_font *font; 1827 1828 fi = MD_FETCH(preload_kmdp, MODINFOMD_FONT, struct font_info *); 1829 1830 font = parse_font_info_static(fi); 1831 if (font != NULL) 1832 vt_font_assigned = font; 1833 } 1834 1835 static void 1836 vtterm_cnprobe(struct terminal *tm, struct consdev *cp) 1837 { 1838 struct vt_driver *vtd, **vtdlist, *vtdbest = NULL; 1839 struct vt_window *vw = tm->tm_softc; 1840 struct vt_device *vd = vw->vw_device; 1841 struct winsize wsz; 1842 const term_attr_t *a; 1843 1844 if (!vty_enabled(VTY_VT)) 1845 return; 1846 1847 if (vd->vd_flags & VDF_INITIALIZED) 1848 /* Initialization already done. */ 1849 return; 1850 1851 SET_FOREACH(vtdlist, vt_drv_set) { 1852 vtd = *vtdlist; 1853 if (vtd->vd_probe == NULL) 1854 continue; 1855 if (vtd->vd_probe(vd) == CN_DEAD) 1856 continue; 1857 if ((vtdbest == NULL) || 1858 (vtd->vd_priority > vtdbest->vd_priority)) 1859 vtdbest = vtd; 1860 } 1861 if (vtdbest == NULL) { 1862 cp->cn_pri = CN_DEAD; 1863 vd->vd_flags |= VDF_DEAD; 1864 } else { 1865 vd->vd_driver = vtdbest; 1866 cp->cn_pri = vd->vd_driver->vd_init(vd); 1867 } 1868 1869 /* Check if driver's vt_init return CN_DEAD. */ 1870 if (cp->cn_pri == CN_DEAD) { 1871 vd->vd_flags |= VDF_DEAD; 1872 } 1873 1874 /* Initialize any early-boot keyboard drivers */ 1875 kbd_configure(KB_CONF_PROBE_ONLY); 1876 1877 vd->vd_unit = atomic_fetchadd_int(&vt_unit, 1); 1878 vd->vd_windows[VT_CONSWINDOW] = vw; 1879 sprintf(cp->cn_name, "ttyv%r", VT_UNIT(vw)); 1880 1881 vt_init_font_static(); 1882 1883 /* Attach default font if not in TEXTMODE. */ 1884 if ((vd->vd_flags & VDF_TEXTMODE) == 0) { 1885 vw->vw_font = vtfont_ref(vt_font_assigned); 1886 vt_compute_drawable_area(vw); 1887 } 1888 1889 /* 1890 * The original screen size was faked (_VTDEFW x _VTDEFH). Now 1891 * that we have the real viewable size, fix it in the static 1892 * buffer. 1893 */ 1894 if (vd->vd_width != 0 && vd->vd_height != 0) 1895 vt_termsize(vd, vw->vw_font, &vw->vw_buf.vb_scr_size); 1896 1897 /* We need to access terminal attributes from vtbuf */ 1898 vw->vw_buf.vb_terminal = tm; 1899 vtbuf_init_early(&vw->vw_buf); 1900 vt_winsize(vd, vw->vw_font, &wsz); 1901 a = teken_get_curattr(&tm->tm_emulator); 1902 terminal_set_winsize_blank(tm, &wsz, 1, a); 1903 1904 if (vtdbest != NULL) { 1905 #ifdef DEV_SPLASH 1906 if (!vt_splash_cpu) 1907 vtterm_splash(vd); 1908 #endif 1909 vd->vd_flags |= VDF_INITIALIZED; 1910 } 1911 } 1912 1913 static int 1914 vtterm_cngetc(struct terminal *tm) 1915 { 1916 struct vt_window *vw = tm->tm_softc; 1917 struct vt_device *vd = vw->vw_device; 1918 keyboard_t *kbd; 1919 u_int c; 1920 1921 if (vw->vw_kbdsq && *vw->vw_kbdsq) 1922 return (*vw->vw_kbdsq++); 1923 1924 /* Make sure the splash screen is not there. */ 1925 if (vd->vd_flags & VDF_SPLASH) { 1926 /* Remove splash */ 1927 vd->vd_flags &= ~VDF_SPLASH; 1928 /* Mark screen as invalid to force update */ 1929 vd->vd_flags |= VDF_INVALID; 1930 vt_flush(vd); 1931 } 1932 1933 /* Stripped down keyboard handler. */ 1934 if ((kbd = vd->vd_keyboard) == NULL) 1935 return (-1); 1936 1937 /* Force keyboard input mode to K_XLATE */ 1938 vw->vw_kbdmode = K_XLATE; 1939 vt_update_kbd_mode(vw, kbd); 1940 1941 /* Switch the keyboard to polling to make it work here. */ 1942 kbdd_poll(kbd, TRUE); 1943 c = kbdd_read_char(kbd, 0); 1944 kbdd_poll(kbd, FALSE); 1945 if (c & RELKEY) 1946 return (-1); 1947 1948 if (vw->vw_flags & VWF_SCROLL) { 1949 vt_scrollmode_kbdevent(vw, c, 1/* Console mode */); 1950 vt_flush(vd); 1951 return (-1); 1952 } 1953 1954 /* Stripped down handling of vt_kbdevent(), without locking, etc. */ 1955 if (c & SPCLKEY) { 1956 switch (c) { 1957 case SPCLKEY | SLK: 1958 vt_save_kbd_state(vw, kbd); 1959 if (vw->vw_kbdstate & SLKED) { 1960 /* Turn scrolling on. */ 1961 vw->vw_flags |= VWF_SCROLL; 1962 VTBUF_SLCK_ENABLE(&vw->vw_buf); 1963 } else { 1964 /* Turn scrolling off. */ 1965 vt_scroll(vw, 0, VHS_END); 1966 vw->vw_flags &= ~VWF_SCROLL; 1967 VTBUF_SLCK_DISABLE(&vw->vw_buf); 1968 } 1969 break; 1970 case SPCLKEY | BTAB: /* Back tab (usually, shift+tab). */ 1971 vw->vw_kbdsq = "\x1b[Z"; 1972 break; 1973 /* XXX: KDB can handle history. */ 1974 case SPCLKEY | FKEY | F(50): /* Arrow up. */ 1975 vw->vw_kbdsq = "\x1b[A"; 1976 break; 1977 case SPCLKEY | FKEY | F(58): /* Arrow down. */ 1978 vw->vw_kbdsq = "\x1b[B"; 1979 break; 1980 case SPCLKEY | FKEY | F(55): /* Arrow right. */ 1981 vw->vw_kbdsq = "\x1b[C"; 1982 break; 1983 case SPCLKEY | FKEY | F(53): /* Arrow left. */ 1984 vw->vw_kbdsq = "\x1b[D"; 1985 break; 1986 } 1987 1988 /* Force refresh to make scrollback work. */ 1989 vt_flush(vd); 1990 } else if (KEYFLAGS(c) == 0) { 1991 return (KEYCHAR(c)); 1992 } 1993 1994 if (vw->vw_kbdsq && *vw->vw_kbdsq) 1995 return (*vw->vw_kbdsq++); 1996 1997 return (-1); 1998 } 1999 2000 /* 2001 * These two do most of what we want to do in vtterm_cnungrab, but without 2002 * actually switching windows. This is necessary for, e.g., 2003 * vt_allocate_keyboard() to get the current keyboard into the state it needs to 2004 * be in without damaging the device's window state. 2005 * 2006 * Both return the current grab count, though it's only used in vtterm_cnungrab. 2007 */ 2008 static int 2009 vtterm_cngrab_noswitch(struct vt_device *vd, struct vt_window *vw) 2010 { 2011 keyboard_t *kbd; 2012 2013 if (vw->vw_grabbed++ > 0) 2014 return (vw->vw_grabbed); 2015 2016 if ((kbd = vd->vd_keyboard) == NULL) 2017 return (1); 2018 2019 /* 2020 * Make sure the keyboard is accessible even when the kbd device 2021 * driver is disabled. 2022 */ 2023 kbdd_enable(kbd); 2024 2025 /* We shall always use the keyboard in the XLATE mode here. */ 2026 vw->vw_prev_kbdmode = vw->vw_kbdmode; 2027 vw->vw_kbdmode = K_XLATE; 2028 vt_update_kbd_mode(vw, kbd); 2029 2030 kbdd_poll(kbd, TRUE); 2031 return (1); 2032 } 2033 2034 static int 2035 vtterm_cnungrab_noswitch(struct vt_device *vd, struct vt_window *vw) 2036 { 2037 keyboard_t *kbd; 2038 2039 if (--vw->vw_grabbed > 0) 2040 return (vw->vw_grabbed); 2041 2042 if ((kbd = vd->vd_keyboard) == NULL) 2043 return (0); 2044 2045 kbdd_poll(kbd, FALSE); 2046 2047 vw->vw_kbdmode = vw->vw_prev_kbdmode; 2048 vt_update_kbd_mode(vw, kbd); 2049 kbdd_disable(kbd); 2050 return (0); 2051 } 2052 2053 static void 2054 vtterm_cngrab(struct terminal *tm) 2055 { 2056 struct vt_device *vd; 2057 struct vt_window *vw; 2058 2059 vw = tm->tm_softc; 2060 vd = vw->vw_device; 2061 2062 /* To be restored after we ungrab. */ 2063 if (vd->vd_grabwindow == NULL) 2064 vd->vd_grabwindow = vd->vd_curwindow; 2065 2066 if (!cold) 2067 vt_window_switch(vw); 2068 2069 vtterm_cngrab_noswitch(vd, vw); 2070 } 2071 2072 static void 2073 vtterm_cnungrab(struct terminal *tm) 2074 { 2075 struct vt_device *vd; 2076 struct vt_window *vw, *grabwindow; 2077 2078 vw = tm->tm_softc; 2079 vd = vw->vw_device; 2080 2081 MPASS(vd->vd_grabwindow != NULL); 2082 if (vtterm_cnungrab_noswitch(vd, vw) != 0) 2083 return; 2084 2085 /* 2086 * We set `vd_grabwindow` to NULL before calling vt_window_switch() 2087 * because it allows the underlying vt(4) backend to distinguish a 2088 * "grab" from an "ungrab" of the console. 2089 * 2090 * This is used by `vt_drmfb` in drm-kmod to call either 2091 * fb_debug_enter() or fb_debug_leave() appropriately. 2092 */ 2093 grabwindow = vd->vd_grabwindow; 2094 vd->vd_grabwindow = NULL; 2095 2096 if (!cold) 2097 vt_window_switch(grabwindow); 2098 } 2099 2100 static void 2101 vtterm_opened(struct terminal *tm, int opened) 2102 { 2103 struct vt_window *vw = tm->tm_softc; 2104 struct vt_device *vd = vw->vw_device; 2105 2106 VT_LOCK(vd); 2107 vd->vd_flags &= ~VDF_SPLASH; 2108 if (opened) 2109 vw->vw_flags |= VWF_OPENED; 2110 else { 2111 vw->vw_flags &= ~VWF_OPENED; 2112 /* TODO: finish ACQ/REL */ 2113 } 2114 VT_UNLOCK(vd); 2115 } 2116 2117 static int 2118 vt_change_font(struct vt_window *vw, struct vt_font *vf) 2119 { 2120 struct vt_device *vd = vw->vw_device; 2121 struct terminal *tm = vw->vw_terminal; 2122 term_pos_t size; 2123 struct winsize wsz; 2124 2125 /* 2126 * Changing fonts. 2127 * 2128 * Changing fonts is a little tricky. We must prevent 2129 * simultaneous access to the device, so we must stop 2130 * the display timer and the terminal from accessing. 2131 * We need to switch fonts and grow our screen buffer. 2132 * 2133 * XXX: Right now the code uses terminal_mute() to 2134 * prevent data from reaching the console driver while 2135 * resizing the screen buffer. This isn't elegant... 2136 */ 2137 2138 VT_LOCK(vd); 2139 if (vw->vw_flags & VWF_BUSY) { 2140 /* Another process is changing the font. */ 2141 VT_UNLOCK(vd); 2142 return (EBUSY); 2143 } 2144 vw->vw_flags |= VWF_BUSY; 2145 VT_UNLOCK(vd); 2146 2147 vt_termsize(vd, vf, &size); 2148 vt_winsize(vd, vf, &wsz); 2149 2150 /* Grow the screen buffer and terminal. */ 2151 terminal_mute(tm, 1); 2152 vtbuf_grow(&vw->vw_buf, &size, vw->vw_buf.vb_history_size); 2153 terminal_set_winsize_blank(tm, &wsz, 0, NULL); 2154 terminal_set_cursor(tm, &vw->vw_buf.vb_cursor); 2155 terminal_mute(tm, 0); 2156 2157 /* Actually apply the font to the current window. */ 2158 VT_LOCK(vd); 2159 if (vw->vw_font != vf && vw->vw_font != NULL && vf != NULL) { 2160 /* 2161 * In case vt_change_font called to update size we don't need 2162 * to update font link. 2163 */ 2164 vtfont_unref(vw->vw_font); 2165 vw->vw_font = vtfont_ref(vf); 2166 } 2167 2168 /* 2169 * Compute the drawable area and move the mouse cursor inside 2170 * it, in case the new area is smaller than the previous one. 2171 */ 2172 vt_compute_drawable_area(vw); 2173 vd->vd_mx = min(vd->vd_mx, 2174 vw->vw_draw_area.tr_end.tp_col - 2175 vw->vw_draw_area.tr_begin.tp_col - 1); 2176 vd->vd_my = min(vd->vd_my, 2177 vw->vw_draw_area.tr_end.tp_row - 2178 vw->vw_draw_area.tr_begin.tp_row - 1); 2179 2180 /* Force a full redraw the next timer tick. */ 2181 if (vd->vd_curwindow == vw) { 2182 vd->vd_flags |= VDF_INVALID; 2183 vt_resume_flush_timer(vw, 0); 2184 } 2185 vw->vw_flags &= ~VWF_BUSY; 2186 VT_UNLOCK(vd); 2187 return (0); 2188 } 2189 2190 static int 2191 vt_proc_alive(struct vt_window *vw) 2192 { 2193 struct proc *p; 2194 2195 if (vw->vw_smode.mode != VT_PROCESS) 2196 return (FALSE); 2197 2198 if (vw->vw_proc) { 2199 if ((p = pfind(vw->vw_pid)) != NULL) 2200 PROC_UNLOCK(p); 2201 if (vw->vw_proc == p) 2202 return (TRUE); 2203 vw->vw_proc = NULL; 2204 vw->vw_smode.mode = VT_AUTO; 2205 DPRINTF(1, "vt controlling process %d died\n", vw->vw_pid); 2206 vw->vw_pid = 0; 2207 } 2208 return (FALSE); 2209 } 2210 2211 static int 2212 signal_vt_rel(struct vt_window *vw) 2213 { 2214 2215 if (vw->vw_smode.mode != VT_PROCESS) 2216 return (FALSE); 2217 if (vw->vw_proc == NULL || vt_proc_alive(vw) == FALSE) { 2218 vw->vw_proc = NULL; 2219 vw->vw_pid = 0; 2220 return (TRUE); 2221 } 2222 vw->vw_flags |= VWF_SWWAIT_REL; 2223 PROC_LOCK(vw->vw_proc); 2224 kern_psignal(vw->vw_proc, vw->vw_smode.relsig); 2225 PROC_UNLOCK(vw->vw_proc); 2226 DPRINTF(1, "sending relsig to %d\n", vw->vw_pid); 2227 return (TRUE); 2228 } 2229 2230 static int 2231 signal_vt_acq(struct vt_window *vw) 2232 { 2233 2234 if (vw->vw_smode.mode != VT_PROCESS) 2235 return (FALSE); 2236 if (vw == vw->vw_device->vd_windows[VT_CONSWINDOW]) 2237 cnavailable(vw->vw_terminal->consdev, FALSE); 2238 if (vw->vw_proc == NULL || vt_proc_alive(vw) == FALSE) { 2239 vw->vw_proc = NULL; 2240 vw->vw_pid = 0; 2241 return (TRUE); 2242 } 2243 vw->vw_flags |= VWF_SWWAIT_ACQ; 2244 PROC_LOCK(vw->vw_proc); 2245 kern_psignal(vw->vw_proc, vw->vw_smode.acqsig); 2246 PROC_UNLOCK(vw->vw_proc); 2247 DPRINTF(1, "sending acqsig to %d\n", vw->vw_pid); 2248 return (TRUE); 2249 } 2250 2251 static int 2252 finish_vt_rel(struct vt_window *vw, int release, int *s) 2253 { 2254 2255 if (vw->vw_flags & VWF_SWWAIT_REL) { 2256 vw->vw_flags &= ~VWF_SWWAIT_REL; 2257 if (release) { 2258 taskqueue_drain_timeout(taskqueue_thread, &vw->vw_timeout_task_dead); 2259 (void)vt_late_window_switch(vw->vw_switch_to); 2260 } 2261 return (0); 2262 } 2263 return (EINVAL); 2264 } 2265 2266 static int 2267 finish_vt_acq(struct vt_window *vw) 2268 { 2269 2270 if (vw->vw_flags & VWF_SWWAIT_ACQ) { 2271 vw->vw_flags &= ~VWF_SWWAIT_ACQ; 2272 return (0); 2273 } 2274 return (EINVAL); 2275 } 2276 2277 #ifndef SC_NO_CUTPASTE 2278 static void 2279 vt_mouse_terminput_button(struct vt_device *vd, int button) 2280 { 2281 struct vt_window *vw; 2282 struct vt_font *vf; 2283 char mouseb[6] = "\x1B[M"; 2284 int i, x, y; 2285 2286 vw = vd->vd_curwindow; 2287 vf = vw->vw_font; 2288 2289 /* Translate to char position. */ 2290 x = vd->vd_mx / vf->vf_width; 2291 y = vd->vd_my / vf->vf_height; 2292 /* Avoid overflow. */ 2293 x = MIN(x, 255 - '!'); 2294 y = MIN(y, 255 - '!'); 2295 2296 mouseb[3] = ' ' + button; 2297 mouseb[4] = '!' + x; 2298 mouseb[5] = '!' + y; 2299 2300 for (i = 0; i < sizeof(mouseb); i++) 2301 terminal_input_char(vw->vw_terminal, mouseb[i]); 2302 } 2303 2304 static void 2305 vt_mouse_terminput(struct vt_device *vd, int type, int x, int y, int event, 2306 int cnt) 2307 { 2308 2309 switch (type) { 2310 case MOUSE_BUTTON_EVENT: 2311 if (cnt > 0) { 2312 /* Mouse button pressed. */ 2313 if (event & MOUSE_BUTTON1DOWN) 2314 vt_mouse_terminput_button(vd, 0); 2315 if (event & MOUSE_BUTTON2DOWN) 2316 vt_mouse_terminput_button(vd, 1); 2317 if (event & MOUSE_BUTTON3DOWN) 2318 vt_mouse_terminput_button(vd, 2); 2319 } else { 2320 /* Mouse button released. */ 2321 vt_mouse_terminput_button(vd, 3); 2322 } 2323 break; 2324 #ifdef notyet 2325 case MOUSE_MOTION_EVENT: 2326 if (mouse->u.data.z < 0) { 2327 /* Scroll up. */ 2328 sc_mouse_input_button(vd, 64); 2329 } else if (mouse->u.data.z > 0) { 2330 /* Scroll down. */ 2331 sc_mouse_input_button(vd, 65); 2332 } 2333 break; 2334 #endif 2335 } 2336 } 2337 2338 static void 2339 vt_mouse_paste(void) 2340 { 2341 term_char_t *buf; 2342 int i, len; 2343 2344 len = VD_PASTEBUFLEN(main_vd); 2345 buf = VD_PASTEBUF(main_vd); 2346 len /= sizeof(term_char_t); 2347 for (i = 0; i < len; i++) { 2348 if (TCHAR_CHARACTER(buf[i]) == '\0') 2349 continue; 2350 terminal_input_char(main_vd->vd_curwindow->vw_terminal, 2351 buf[i]); 2352 } 2353 } 2354 2355 void 2356 vt_mouse_event(int type, int x, int y, int event, int cnt, int mlevel) 2357 { 2358 struct vt_device *vd; 2359 struct vt_window *vw; 2360 struct vt_font *vf; 2361 term_pos_t size; 2362 int len, mark; 2363 2364 vd = main_vd; 2365 vw = vd->vd_curwindow; 2366 vf = vw->vw_font; 2367 2368 if (vw->vw_flags & (VWF_MOUSE_HIDE | VWF_GRAPHICS)) 2369 /* 2370 * Either the mouse is disabled, or the window is in 2371 * "graphics mode". The graphics mode is usually set by 2372 * an X server, using the KDSETMODE ioctl. 2373 */ 2374 return; 2375 2376 if (vf == NULL) /* Text mode. */ 2377 return; 2378 2379 /* 2380 * TODO: add flag about pointer position changed, to not redraw chars 2381 * under mouse pointer when nothing changed. 2382 */ 2383 2384 if (vw->vw_mouse_level > 0) 2385 vt_mouse_terminput(vd, type, x, y, event, cnt); 2386 2387 switch (type) { 2388 case MOUSE_ACTION: 2389 case MOUSE_MOTION_EVENT: 2390 /* Movement */ 2391 x += vd->vd_mx; 2392 y += vd->vd_my; 2393 2394 vt_termsize(vd, vf, &size); 2395 2396 /* Apply limits. */ 2397 x = MAX(x, 0); 2398 y = MAX(y, 0); 2399 x = MIN(x, (size.tp_col * vf->vf_width) - 1); 2400 y = MIN(y, (size.tp_row * vf->vf_height) - 1); 2401 2402 vd->vd_mx = x; 2403 vd->vd_my = y; 2404 if (vd->vd_mstate & (MOUSE_BUTTON1DOWN | VT_MOUSE_EXTENDBUTTON)) 2405 vtbuf_set_mark(&vw->vw_buf, VTB_MARK_MOVE, 2406 vd->vd_mx / vf->vf_width, 2407 vd->vd_my / vf->vf_height); 2408 2409 vt_resume_flush_timer(vw, 0); 2410 return; /* Done */ 2411 case MOUSE_BUTTON_EVENT: 2412 /* Buttons */ 2413 break; 2414 default: 2415 return; /* Done */ 2416 } 2417 2418 switch (event) { 2419 case MOUSE_BUTTON1DOWN: 2420 switch (cnt % 4) { 2421 case 0: /* up */ 2422 mark = VTB_MARK_END; 2423 break; 2424 case 1: /* single click: start cut operation */ 2425 mark = VTB_MARK_START; 2426 break; 2427 case 2: /* double click: cut a word */ 2428 mark = VTB_MARK_WORD; 2429 break; 2430 default: /* triple click: cut a line */ 2431 mark = VTB_MARK_ROW; 2432 break; 2433 } 2434 break; 2435 case VT_MOUSE_PASTEBUTTON: 2436 switch (cnt) { 2437 case 0: /* up */ 2438 break; 2439 default: 2440 vt_mouse_paste(); 2441 /* clear paste buffer selection after paste */ 2442 vtbuf_set_mark(&vw->vw_buf, VTB_MARK_START, 2443 vd->vd_mx / vf->vf_width, 2444 vd->vd_my / vf->vf_height); 2445 break; 2446 } 2447 return; /* Done */ 2448 case VT_MOUSE_EXTENDBUTTON: 2449 switch (cnt) { 2450 case 0: /* up */ 2451 if (!(vd->vd_mstate & MOUSE_BUTTON1DOWN)) 2452 mark = VTB_MARK_EXTEND; 2453 else 2454 mark = VTB_MARK_NONE; 2455 break; 2456 default: 2457 mark = VTB_MARK_EXTEND; 2458 break; 2459 } 2460 break; 2461 default: 2462 return; /* Done */ 2463 } 2464 2465 /* Save buttons state. */ 2466 if (cnt > 0) 2467 vd->vd_mstate |= event; 2468 else 2469 vd->vd_mstate &= ~event; 2470 2471 if (vtbuf_set_mark(&vw->vw_buf, mark, vd->vd_mx / vf->vf_width, 2472 vd->vd_my / vf->vf_height) == 1) { 2473 /* 2474 * We have something marked to copy, so update pointer to 2475 * window with selection. 2476 */ 2477 vt_resume_flush_timer(vw, 0); 2478 2479 switch (mark) { 2480 case VTB_MARK_END: 2481 case VTB_MARK_WORD: 2482 case VTB_MARK_ROW: 2483 case VTB_MARK_EXTEND: 2484 break; 2485 default: 2486 /* Other types of mark do not require to copy data. */ 2487 return; 2488 } 2489 2490 /* Get current selection size in bytes. */ 2491 len = vtbuf_get_marked_len(&vw->vw_buf); 2492 if (len <= 0) 2493 return; 2494 2495 /* Reallocate buffer only if old one is too small. */ 2496 if (len > VD_PASTEBUFSZ(vd)) { 2497 VD_PASTEBUF(vd) = realloc(VD_PASTEBUF(vd), len, M_VT, 2498 M_WAITOK | M_ZERO); 2499 /* Update buffer size. */ 2500 VD_PASTEBUFSZ(vd) = len; 2501 } 2502 /* Request copy/paste buffer data, no more than `len' */ 2503 vtbuf_extract_marked(&vw->vw_buf, VD_PASTEBUF(vd), len, mark); 2504 2505 VD_PASTEBUFLEN(vd) = len; 2506 2507 /* XXX VD_PASTEBUF(vd) have to be freed on shutdown/unload. */ 2508 } 2509 } 2510 2511 void 2512 vt_mouse_state(int show) 2513 { 2514 struct vt_device *vd; 2515 struct vt_window *vw; 2516 2517 vd = main_vd; 2518 vw = vd->vd_curwindow; 2519 2520 switch (show) { 2521 case VT_MOUSE_HIDE: 2522 vw->vw_flags |= VWF_MOUSE_HIDE; 2523 break; 2524 case VT_MOUSE_SHOW: 2525 vw->vw_flags &= ~VWF_MOUSE_HIDE; 2526 break; 2527 } 2528 2529 /* Mark mouse position as dirty. */ 2530 vt_mark_mouse_position_as_dirty(vd, false); 2531 vt_resume_flush_timer(vw, 0); 2532 } 2533 #endif 2534 2535 static int 2536 vtterm_mmap(struct terminal *tm, vm_ooffset_t offset, vm_paddr_t * paddr, 2537 int nprot, vm_memattr_t *memattr) 2538 { 2539 struct vt_window *vw = tm->tm_softc; 2540 struct vt_device *vd = vw->vw_device; 2541 2542 if (vd->vd_driver->vd_fb_mmap) 2543 return (vd->vd_driver->vd_fb_mmap(vd, offset, paddr, nprot, 2544 memattr)); 2545 2546 return (ENXIO); 2547 } 2548 2549 static int 2550 vtterm_ioctl(struct terminal *tm, u_long cmd, caddr_t data, 2551 struct thread *td) 2552 { 2553 struct vt_window *vw = tm->tm_softc; 2554 struct vt_device *vd = vw->vw_device; 2555 keyboard_t *kbd; 2556 int error, i, s; 2557 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 2558 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 2559 int ival; 2560 2561 switch (cmd) { 2562 case _IO('v', 4): 2563 cmd = VT_RELDISP; 2564 break; 2565 case _IO('v', 5): 2566 cmd = VT_ACTIVATE; 2567 break; 2568 case _IO('v', 6): 2569 cmd = VT_WAITACTIVE; 2570 break; 2571 case _IO('K', 20): 2572 cmd = KDSKBSTATE; 2573 break; 2574 case _IO('K', 67): 2575 cmd = KDSETRAD; 2576 break; 2577 case _IO('K', 7): 2578 cmd = KDSKBMODE; 2579 break; 2580 case _IO('K', 8): 2581 cmd = KDMKTONE; 2582 break; 2583 case _IO('K', 10): 2584 cmd = KDSETMODE; 2585 break; 2586 case _IO('K', 13): 2587 cmd = KDSBORDER; 2588 break; 2589 case _IO('K', 63): 2590 cmd = KIOCSOUND; 2591 break; 2592 case _IO('K', 66): 2593 cmd = KDSETLED; 2594 break; 2595 case _IO('c', 104): 2596 cmd = CONS_SETWINORG; 2597 break; 2598 case _IO('c', 110): 2599 cmd = CONS_SETKBD; 2600 break; 2601 default: 2602 goto skip_thunk; 2603 } 2604 ival = IOCPARM_IVAL(data); 2605 data = (caddr_t)&ival; 2606 skip_thunk: 2607 #endif 2608 2609 switch (cmd) { 2610 case KDSETRAD: /* set keyboard repeat & delay rates (old) */ 2611 if (*(int *)data & ~0x7f) 2612 return (EINVAL); 2613 /* FALLTHROUGH */ 2614 case GIO_KEYMAP: 2615 case PIO_KEYMAP: 2616 case GIO_DEADKEYMAP: 2617 case PIO_DEADKEYMAP: 2618 #ifdef COMPAT_FREEBSD13 2619 case OGIO_DEADKEYMAP: 2620 case OPIO_DEADKEYMAP: 2621 #endif /* COMPAT_FREEBSD13 */ 2622 case GETFKEY: 2623 case SETFKEY: 2624 case KDGKBINFO: 2625 case KDGKBTYPE: 2626 case KDGETREPEAT: /* get keyboard repeat & delay rates */ 2627 case KDSETREPEAT: /* set keyboard repeat & delay rates (new) */ 2628 case KBADDKBD: /* add keyboard to mux */ 2629 case KBRELKBD: { /* release keyboard from mux */ 2630 error = 0; 2631 2632 mtx_lock(&Giant); 2633 if ((kbd = vd->vd_keyboard) != NULL) 2634 error = kbdd_ioctl(kbd, cmd, data); 2635 mtx_unlock(&Giant); 2636 if (error == ENOIOCTL) { 2637 if (cmd == KDGKBTYPE) { 2638 /* always return something? XXX */ 2639 *(int *)data = 0; 2640 } else { 2641 return (ENODEV); 2642 } 2643 } 2644 return (error); 2645 } 2646 case KDGKBSTATE: { /* get keyboard state (locks) */ 2647 error = 0; 2648 2649 if (vw == vd->vd_curwindow) { 2650 mtx_lock(&Giant); 2651 if ((kbd = vd->vd_keyboard) != NULL) 2652 error = vt_save_kbd_state(vw, kbd); 2653 mtx_unlock(&Giant); 2654 2655 if (error != 0) 2656 return (error); 2657 } 2658 2659 *(int *)data = vw->vw_kbdstate & LOCK_MASK; 2660 2661 return (error); 2662 } 2663 case KDSKBSTATE: { /* set keyboard state (locks) */ 2664 int state; 2665 2666 state = *(int *)data; 2667 if (state & ~LOCK_MASK) 2668 return (EINVAL); 2669 2670 vw->vw_kbdstate &= ~LOCK_MASK; 2671 vw->vw_kbdstate |= state; 2672 2673 error = 0; 2674 if (vw == vd->vd_curwindow) { 2675 mtx_lock(&Giant); 2676 if ((kbd = vd->vd_keyboard) != NULL) 2677 error = vt_update_kbd_state(vw, kbd); 2678 mtx_unlock(&Giant); 2679 } 2680 2681 return (error); 2682 } 2683 case KDGETLED: { /* get keyboard LED status */ 2684 error = 0; 2685 2686 if (vw == vd->vd_curwindow) { 2687 mtx_lock(&Giant); 2688 if ((kbd = vd->vd_keyboard) != NULL) 2689 error = vt_save_kbd_leds(vw, kbd); 2690 mtx_unlock(&Giant); 2691 2692 if (error != 0) 2693 return (error); 2694 } 2695 2696 *(int *)data = vw->vw_kbdstate & LED_MASK; 2697 2698 return (error); 2699 } 2700 case KDSETLED: { /* set keyboard LED status */ 2701 int leds; 2702 2703 leds = *(int *)data; 2704 if (leds & ~LED_MASK) 2705 return (EINVAL); 2706 2707 vw->vw_kbdstate &= ~LED_MASK; 2708 vw->vw_kbdstate |= leds; 2709 2710 error = 0; 2711 if (vw == vd->vd_curwindow) { 2712 mtx_lock(&Giant); 2713 if ((kbd = vd->vd_keyboard) != NULL) 2714 error = vt_update_kbd_leds(vw, kbd); 2715 mtx_unlock(&Giant); 2716 } 2717 2718 return (error); 2719 } 2720 case KDGETMODE: 2721 *(int *)data = (vw->vw_flags & VWF_GRAPHICS) ? 2722 KD_GRAPHICS : KD_TEXT; 2723 return (0); 2724 case KDGKBMODE: { 2725 error = 0; 2726 2727 if (vw == vd->vd_curwindow) { 2728 mtx_lock(&Giant); 2729 if ((kbd = vd->vd_keyboard) != NULL) 2730 error = vt_save_kbd_mode(vw, kbd); 2731 mtx_unlock(&Giant); 2732 2733 if (error != 0) 2734 return (error); 2735 } 2736 2737 *(int *)data = vw->vw_kbdmode; 2738 2739 return (error); 2740 } 2741 case KDSKBMODE: { 2742 int mode; 2743 2744 mode = *(int *)data; 2745 switch (mode) { 2746 case K_XLATE: 2747 case K_RAW: 2748 case K_CODE: 2749 vw->vw_kbdmode = mode; 2750 2751 error = 0; 2752 if (vw == vd->vd_curwindow) { 2753 mtx_lock(&Giant); 2754 if ((kbd = vd->vd_keyboard) != NULL) 2755 error = vt_update_kbd_mode(vw, kbd); 2756 mtx_unlock(&Giant); 2757 } 2758 2759 return (error); 2760 default: 2761 return (EINVAL); 2762 } 2763 } 2764 case FBIOGTYPE: 2765 case FBIO_GETWINORG: /* get frame buffer window origin */ 2766 case FBIO_GETDISPSTART: /* get display start address */ 2767 case FBIO_GETLINEWIDTH: /* get scan line width in bytes */ 2768 case FBIO_BLANK: /* blank display */ 2769 case FBIO_GETRGBOFFS: /* get RGB offsets */ 2770 if (vd->vd_driver->vd_fb_ioctl) 2771 return (vd->vd_driver->vd_fb_ioctl(vd, cmd, data, td)); 2772 break; 2773 case CONS_BLANKTIME: 2774 /* XXX */ 2775 return (0); 2776 case CONS_HISTORY: 2777 if (*(int *)data < 0) 2778 return EINVAL; 2779 if (*(int *)data != vw->vw_buf.vb_history_size) 2780 vtbuf_sethistory_size(&vw->vw_buf, *(int *)data); 2781 return (0); 2782 case CONS_CLRHIST: 2783 vtbuf_clearhistory(&vw->vw_buf); 2784 /* 2785 * Invalidate the entire visible window; it is not guaranteed 2786 * that this operation will be immediately followed by a scroll 2787 * event, so it would otherwise be possible for prior artifacts 2788 * to remain visible. 2789 */ 2790 VT_LOCK(vd); 2791 if (vw == vd->vd_curwindow) { 2792 vd->vd_flags |= VDF_INVALID; 2793 vt_resume_flush_timer(vw, 0); 2794 } 2795 VT_UNLOCK(vd); 2796 return (0); 2797 case CONS_GET: 2798 /* XXX */ 2799 *(int *)data = M_CG640x480; 2800 return (0); 2801 case CONS_BELLTYPE: /* set bell type sound */ 2802 if ((*(int *)data) & CONS_QUIET_BELL) 2803 vd->vd_flags |= VDF_QUIET_BELL; 2804 else 2805 vd->vd_flags &= ~VDF_QUIET_BELL; 2806 return (0); 2807 case CONS_GETINFO: { 2808 vid_info_t *vi = (vid_info_t *)data; 2809 if (vi->size != sizeof(struct vid_info)) 2810 return (EINVAL); 2811 2812 if (vw == vd->vd_curwindow) { 2813 mtx_lock(&Giant); 2814 if ((kbd = vd->vd_keyboard) != NULL) 2815 vt_save_kbd_state(vw, kbd); 2816 mtx_unlock(&Giant); 2817 } 2818 2819 vi->m_num = vd->vd_curwindow->vw_number + 1; 2820 vi->mk_keylock = vw->vw_kbdstate & LOCK_MASK; 2821 /* XXX: other fields! */ 2822 return (0); 2823 } 2824 case CONS_GETVERS: 2825 *(int *)data = 0x200; 2826 return (0); 2827 case CONS_MODEINFO: 2828 /* XXX */ 2829 return (0); 2830 case CONS_MOUSECTL: { 2831 mouse_info_t *mouse = (mouse_info_t*)data; 2832 2833 /* 2834 * All the commands except MOUSE_SHOW nd MOUSE_HIDE 2835 * should not be applied to individual TTYs, but only to 2836 * consolectl. 2837 */ 2838 switch (mouse->operation) { 2839 case MOUSE_HIDE: 2840 if (vd->vd_flags & VDF_MOUSECURSOR) { 2841 vd->vd_flags &= ~VDF_MOUSECURSOR; 2842 #ifndef SC_NO_CUTPASTE 2843 vt_mouse_state(VT_MOUSE_HIDE); 2844 #endif 2845 } 2846 return (0); 2847 case MOUSE_SHOW: 2848 if (!(vd->vd_flags & VDF_MOUSECURSOR)) { 2849 vd->vd_flags |= VDF_MOUSECURSOR; 2850 vd->vd_mx = vd->vd_width / 2; 2851 vd->vd_my = vd->vd_height / 2; 2852 #ifndef SC_NO_CUTPASTE 2853 vt_mouse_state(VT_MOUSE_SHOW); 2854 #endif 2855 } 2856 return (0); 2857 default: 2858 return (EINVAL); 2859 } 2860 } 2861 case PIO_VFONT: { 2862 struct vt_font *vf; 2863 2864 if (vd->vd_flags & VDF_TEXTMODE) 2865 return (ENOTSUP); 2866 2867 error = vtfont_load((void *)data, &vf); 2868 if (error != 0) 2869 return (error); 2870 2871 error = vt_change_font(vw, vf); 2872 vtfont_unref(vf); 2873 return (error); 2874 } 2875 case PIO_VFONT_DEFAULT: { 2876 /* Reset to default font. */ 2877 error = vt_change_font(vw, vt_font_assigned); 2878 return (error); 2879 } 2880 case GIO_SCRNMAP: { 2881 scrmap_t *sm = (scrmap_t *)data; 2882 2883 /* We don't have screen maps, so return a handcrafted one. */ 2884 for (i = 0; i < 256; i++) 2885 sm->scrmap[i] = i; 2886 return (0); 2887 } 2888 case KDSETMODE: 2889 /* 2890 * FIXME: This implementation is incomplete compared to 2891 * syscons. 2892 */ 2893 switch (*(int *)data) { 2894 case KD_TEXT: 2895 case KD_TEXT1: 2896 case KD_PIXEL: 2897 vw->vw_flags &= ~VWF_GRAPHICS; 2898 break; 2899 case KD_GRAPHICS: 2900 vw->vw_flags |= VWF_GRAPHICS; 2901 break; 2902 } 2903 return (0); 2904 case KDENABIO: /* allow io operations */ 2905 error = priv_check(td, PRIV_IO); 2906 if (error != 0) 2907 return (error); 2908 error = securelevel_gt(td->td_ucred, 0); 2909 if (error != 0) 2910 return (error); 2911 #if defined(__i386__) 2912 td->td_frame->tf_eflags |= PSL_IOPL; 2913 #elif defined(__amd64__) 2914 td->td_frame->tf_rflags |= PSL_IOPL; 2915 #endif 2916 return (0); 2917 case KDDISABIO: /* disallow io operations (default) */ 2918 #if defined(__i386__) 2919 td->td_frame->tf_eflags &= ~PSL_IOPL; 2920 #elif defined(__amd64__) 2921 td->td_frame->tf_rflags &= ~PSL_IOPL; 2922 #endif 2923 return (0); 2924 case KDMKTONE: /* sound the bell */ 2925 vtterm_beep(tm, *(u_int *)data); 2926 return (0); 2927 case KIOCSOUND: /* make tone (*data) hz */ 2928 /* TODO */ 2929 return (0); 2930 case CONS_SETKBD: /* set the new keyboard */ 2931 mtx_lock(&Giant); 2932 error = 0; 2933 if (vd->vd_keyboard == NULL || 2934 vd->vd_keyboard->kb_index != *(int *)data) { 2935 kbd = kbd_get_keyboard(*(int *)data); 2936 if (kbd == NULL) { 2937 mtx_unlock(&Giant); 2938 return (EINVAL); 2939 } 2940 i = kbd_allocate(kbd->kb_name, kbd->kb_unit, 2941 (void *)vd, vt_kbdevent, vd); 2942 if (i >= 0) { 2943 if ((kbd = vd->vd_keyboard) != NULL) { 2944 vt_save_kbd_state(vd->vd_curwindow, kbd); 2945 kbd_release(kbd, (void *)vd); 2946 } 2947 kbd = vd->vd_keyboard = kbd_get_keyboard(i); 2948 2949 vt_update_kbd_mode(vd->vd_curwindow, kbd); 2950 vt_update_kbd_state(vd->vd_curwindow, kbd); 2951 } else { 2952 error = EPERM; /* XXX */ 2953 } 2954 } 2955 mtx_unlock(&Giant); 2956 return (error); 2957 case CONS_RELKBD: /* release the current keyboard */ 2958 mtx_lock(&Giant); 2959 error = 0; 2960 if ((kbd = vd->vd_keyboard) != NULL) { 2961 vt_save_kbd_state(vd->vd_curwindow, kbd); 2962 error = kbd_release(kbd, (void *)vd); 2963 if (error == 0) { 2964 vd->vd_keyboard = NULL; 2965 } 2966 } 2967 mtx_unlock(&Giant); 2968 return (error); 2969 case VT_ACTIVATE: { 2970 int win; 2971 win = *(int *)data - 1; 2972 DPRINTF(5, "%s%d: VT_ACTIVATE ttyv%d ", SC_DRIVER_NAME, 2973 VT_UNIT(vw), win); 2974 if ((win >= VT_MAXWINDOWS) || (win < 0)) 2975 return (EINVAL); 2976 return (vt_proc_window_switch(vd->vd_windows[win])); 2977 } 2978 case VT_GETACTIVE: 2979 *(int *)data = vd->vd_curwindow->vw_number + 1; 2980 return (0); 2981 case VT_GETINDEX: 2982 *(int *)data = vw->vw_number + 1; 2983 return (0); 2984 case VT_LOCKSWITCH: 2985 /* TODO: Check current state, switching can be in progress. */ 2986 if ((*(int *)data) == 0x01) 2987 vw->vw_flags |= VWF_VTYLOCK; 2988 else if ((*(int *)data) == 0x02) 2989 vw->vw_flags &= ~VWF_VTYLOCK; 2990 else 2991 return (EINVAL); 2992 return (0); 2993 case VT_OPENQRY: 2994 VT_LOCK(vd); 2995 for (i = 0; i < VT_MAXWINDOWS; i++) { 2996 vw = vd->vd_windows[i]; 2997 if (vw == NULL) 2998 continue; 2999 if (!(vw->vw_flags & VWF_OPENED)) { 3000 *(int *)data = vw->vw_number + 1; 3001 VT_UNLOCK(vd); 3002 return (0); 3003 } 3004 } 3005 VT_UNLOCK(vd); 3006 return (EINVAL); 3007 case VT_WAITACTIVE: { 3008 unsigned int idx; 3009 3010 error = 0; 3011 3012 idx = *(unsigned int *)data; 3013 if (idx > VT_MAXWINDOWS) 3014 return (EINVAL); 3015 if (idx > 0) 3016 vw = vd->vd_windows[idx - 1]; 3017 3018 VT_LOCK(vd); 3019 while (vd->vd_curwindow != vw && error == 0) 3020 error = cv_wait_sig(&vd->vd_winswitch, &vd->vd_lock); 3021 VT_UNLOCK(vd); 3022 return (error); 3023 } 3024 case VT_SETMODE: { /* set screen switcher mode */ 3025 struct vt_mode *mode; 3026 struct proc *p1; 3027 3028 mode = (struct vt_mode *)data; 3029 DPRINTF(5, "%s%d: VT_SETMODE ", SC_DRIVER_NAME, VT_UNIT(vw)); 3030 if (vw->vw_smode.mode == VT_PROCESS) { 3031 p1 = pfind(vw->vw_pid); 3032 if (vw->vw_proc == p1 && vw->vw_proc != td->td_proc) { 3033 if (p1) 3034 PROC_UNLOCK(p1); 3035 DPRINTF(5, "error EPERM\n"); 3036 return (EPERM); 3037 } 3038 if (p1) 3039 PROC_UNLOCK(p1); 3040 } 3041 if (mode->mode == VT_AUTO) { 3042 vw->vw_smode.mode = VT_AUTO; 3043 vw->vw_proc = NULL; 3044 vw->vw_pid = 0; 3045 DPRINTF(5, "VT_AUTO, "); 3046 if (vw == vw->vw_device->vd_windows[VT_CONSWINDOW]) 3047 cnavailable(vw->vw_terminal->consdev, TRUE); 3048 /* were we in the middle of the vty switching process? */ 3049 if (finish_vt_rel(vw, TRUE, &s) == 0) 3050 DPRINTF(5, "reset WAIT_REL, "); 3051 if (finish_vt_acq(vw) == 0) 3052 DPRINTF(5, "reset WAIT_ACQ, "); 3053 return (0); 3054 } else if (mode->mode == VT_PROCESS) { 3055 if (!(_SIG_VALID(mode->relsig) && 3056 _SIG_VALID(mode->acqsig) && 3057 (mode->frsig == 0 || _SIG_VALID(mode->frsig)))) { 3058 DPRINTF(5, "error EINVAL\n"); 3059 return (EINVAL); 3060 } 3061 DPRINTF(5, "VT_PROCESS %d, ", td->td_proc->p_pid); 3062 bcopy(data, &vw->vw_smode, sizeof(struct vt_mode)); 3063 vw->vw_proc = td->td_proc; 3064 vw->vw_pid = vw->vw_proc->p_pid; 3065 if (vw == vw->vw_device->vd_windows[VT_CONSWINDOW]) 3066 cnavailable(vw->vw_terminal->consdev, FALSE); 3067 } else { 3068 DPRINTF(5, "VT_SETMODE failed, unknown mode %d\n", 3069 mode->mode); 3070 return (EINVAL); 3071 } 3072 DPRINTF(5, "\n"); 3073 return (0); 3074 } 3075 case VT_GETMODE: /* get screen switcher mode */ 3076 bcopy(&vw->vw_smode, data, sizeof(struct vt_mode)); 3077 return (0); 3078 3079 case VT_RELDISP: /* screen switcher ioctl */ 3080 /* 3081 * This must be the current vty which is in the VT_PROCESS 3082 * switching mode... 3083 */ 3084 if ((vw != vd->vd_curwindow) || (vw->vw_smode.mode != 3085 VT_PROCESS)) { 3086 return (EINVAL); 3087 } 3088 /* ...and this process is controlling it. */ 3089 if (vw->vw_proc != td->td_proc) { 3090 return (EPERM); 3091 } 3092 error = EINVAL; 3093 switch(*(int *)data) { 3094 case VT_FALSE: /* user refuses to release screen, abort */ 3095 if ((error = finish_vt_rel(vw, FALSE, &s)) == 0) 3096 DPRINTF(5, "%s%d: VT_RELDISP: VT_FALSE\n", 3097 SC_DRIVER_NAME, VT_UNIT(vw)); 3098 break; 3099 case VT_TRUE: /* user has released screen, go on */ 3100 /* finish_vt_rel(..., TRUE, ...) should not be locked */ 3101 if (vw->vw_flags & VWF_SWWAIT_REL) { 3102 if ((error = finish_vt_rel(vw, TRUE, &s)) == 0) 3103 DPRINTF(5, "%s%d: VT_RELDISP: VT_TRUE\n", 3104 SC_DRIVER_NAME, VT_UNIT(vw)); 3105 } else { 3106 error = EINVAL; 3107 } 3108 return (error); 3109 case VT_ACKACQ: /* acquire acknowledged, switch completed */ 3110 if ((error = finish_vt_acq(vw)) == 0) 3111 DPRINTF(5, "%s%d: VT_RELDISP: VT_ACKACQ\n", 3112 SC_DRIVER_NAME, VT_UNIT(vw)); 3113 break; 3114 default: 3115 break; 3116 } 3117 return (error); 3118 } 3119 3120 return (ENOIOCTL); 3121 } 3122 3123 static struct vt_window * 3124 vt_allocate_window(struct vt_device *vd, unsigned int window) 3125 { 3126 struct vt_window *vw; 3127 struct terminal *tm; 3128 term_pos_t size; 3129 struct winsize wsz; 3130 3131 vw = malloc(sizeof *vw, M_VT, M_WAITOK|M_ZERO); 3132 vw->vw_device = vd; 3133 vw->vw_number = window; 3134 vw->vw_kbdmode = K_XLATE; 3135 3136 if ((vd->vd_flags & VDF_TEXTMODE) == 0) { 3137 vw->vw_font = vtfont_ref(vt_font_assigned); 3138 vt_compute_drawable_area(vw); 3139 } 3140 3141 vt_termsize(vd, vw->vw_font, &size); 3142 vt_winsize(vd, vw->vw_font, &wsz); 3143 tm = vw->vw_terminal = terminal_alloc(&vt_termclass, vw); 3144 vw->vw_buf.vb_terminal = tm; /* must be set before vtbuf_init() */ 3145 vtbuf_init(&vw->vw_buf, &size); 3146 3147 terminal_set_winsize(tm, &wsz); 3148 vd->vd_windows[window] = vw; 3149 TIMEOUT_TASK_INIT(taskqueue_thread, &vw->vw_timeout_task_dead, 0, &vt_switch_timer, vw); 3150 3151 return (vw); 3152 } 3153 3154 void 3155 vt_upgrade(struct vt_device *vd) 3156 { 3157 struct vt_window *vw; 3158 unsigned int i; 3159 int register_handlers; 3160 3161 if (!vty_enabled(VTY_VT)) 3162 return; 3163 if (main_vd->vd_driver == NULL) 3164 return; 3165 3166 for (i = 0; i < VT_MAXWINDOWS; i++) { 3167 vw = vd->vd_windows[i]; 3168 if (vw == NULL) { 3169 /* New window. */ 3170 vw = vt_allocate_window(vd, i); 3171 } 3172 if (!(vw->vw_flags & VWF_READY)) { 3173 TIMEOUT_TASK_INIT(taskqueue_thread, &vw->vw_timeout_task_dead, 0, &vt_switch_timer, vw); 3174 terminal_maketty(vw->vw_terminal, "v%r", VT_UNIT(vw)); 3175 vw->vw_flags |= VWF_READY; 3176 if (vw->vw_flags & VWF_CONSOLE) { 3177 /* For existing console window. */ 3178 EVENTHANDLER_REGISTER(shutdown_pre_sync, 3179 vt_window_switch, vw, SHUTDOWN_PRI_DEFAULT); 3180 } 3181 } 3182 } 3183 VT_LOCK(vd); 3184 if (vd->vd_curwindow == NULL) 3185 vd->vd_curwindow = vd->vd_windows[VT_CONSWINDOW]; 3186 3187 register_handlers = 0; 3188 if (!(vd->vd_flags & VDF_ASYNC)) { 3189 /* Attach keyboard. */ 3190 vt_allocate_keyboard(vd); 3191 3192 /* Init 25 Hz timer. */ 3193 callout_init_mtx(&vd->vd_timer, &vd->vd_lock, 0); 3194 3195 /* 3196 * Start timer when everything ready. 3197 * Note that the operations here are purposefully ordered. 3198 * We need to ensure vd_timer_armed is non-zero before we set 3199 * the VDF_ASYNC flag. That prevents this function from 3200 * racing with vt_resume_flush_timer() to update the 3201 * callout structure. 3202 */ 3203 atomic_add_acq_int(&vd->vd_timer_armed, 1); 3204 vd->vd_flags |= VDF_ASYNC; 3205 callout_reset(&vd->vd_timer, hz / VT_TIMERFREQ, vt_timer, vd); 3206 register_handlers = 1; 3207 } 3208 3209 VT_UNLOCK(vd); 3210 3211 /* Refill settings with new sizes. */ 3212 vt_resize(vd); 3213 3214 if (register_handlers) { 3215 /* Register suspend/resume handlers. */ 3216 EVENTHANDLER_REGISTER(power_suspend_early, vt_suspend_handler, 3217 vd, EVENTHANDLER_PRI_ANY); 3218 EVENTHANDLER_REGISTER(power_resume, vt_resume_handler, vd, 3219 EVENTHANDLER_PRI_ANY); 3220 } 3221 } 3222 3223 static void 3224 vt_resize(struct vt_device *vd) 3225 { 3226 struct vt_window *vw; 3227 int i; 3228 3229 for (i = 0; i < VT_MAXWINDOWS; i++) { 3230 vw = vd->vd_windows[i]; 3231 VT_LOCK(vd); 3232 /* Assign default font to window, if not textmode. */ 3233 if (!(vd->vd_flags & VDF_TEXTMODE) && vw->vw_font == NULL) 3234 vw->vw_font = vtfont_ref(vt_font_assigned); 3235 VT_UNLOCK(vd); 3236 3237 /* Resize terminal windows */ 3238 while (vt_change_font(vw, vw->vw_font) == EBUSY) { 3239 DPRINTF(100, "%s: vt_change_font() is busy, " 3240 "window %d\n", __func__, i); 3241 } 3242 } 3243 } 3244 3245 static void 3246 vt_replace_backend(const struct vt_driver *drv, void *softc) 3247 { 3248 struct vt_device *vd; 3249 3250 vd = main_vd; 3251 3252 if (vd->vd_flags & VDF_ASYNC) { 3253 /* Stop vt_flush periodic task. */ 3254 VT_LOCK(vd); 3255 vt_suspend_flush_timer(vd); 3256 VT_UNLOCK(vd); 3257 /* 3258 * Mute current terminal until we done. vt_change_font (called 3259 * from vt_resize) will unmute it. 3260 */ 3261 terminal_mute(vd->vd_curwindow->vw_terminal, 1); 3262 } 3263 3264 /* 3265 * Reset VDF_TEXTMODE flag, driver who require that flag (vt_vga) will 3266 * set it. 3267 */ 3268 VT_LOCK(vd); 3269 vd->vd_flags &= ~VDF_TEXTMODE; 3270 3271 if (drv != NULL) { 3272 /* 3273 * We want to upgrade from the current driver to the 3274 * given driver. 3275 */ 3276 3277 vd->vd_prev_driver = vd->vd_driver; 3278 vd->vd_prev_softc = vd->vd_softc; 3279 vd->vd_driver = drv; 3280 vd->vd_softc = softc; 3281 3282 vd->vd_driver->vd_init(vd); 3283 } else if (vd->vd_prev_driver != NULL && vd->vd_prev_softc != NULL) { 3284 /* 3285 * No driver given: we want to downgrade to the previous 3286 * driver. 3287 */ 3288 const struct vt_driver *old_drv; 3289 void *old_softc; 3290 3291 old_drv = vd->vd_driver; 3292 old_softc = vd->vd_softc; 3293 3294 vd->vd_driver = vd->vd_prev_driver; 3295 vd->vd_softc = vd->vd_prev_softc; 3296 vd->vd_prev_driver = NULL; 3297 vd->vd_prev_softc = NULL; 3298 3299 vd->vd_flags |= VDF_DOWNGRADE; 3300 3301 vd->vd_driver->vd_init(vd); 3302 3303 if (old_drv->vd_fini) 3304 old_drv->vd_fini(vd, old_softc); 3305 3306 vd->vd_flags &= ~VDF_DOWNGRADE; 3307 } 3308 3309 VT_UNLOCK(vd); 3310 3311 /* Update windows sizes and initialize last items. */ 3312 vt_upgrade(vd); 3313 3314 /* 3315 * Give a chance to the new backend to run the post-switch code, for 3316 * instance to refresh the screen. 3317 */ 3318 if (vd->vd_driver->vd_postswitch) 3319 vd->vd_driver->vd_postswitch(vd); 3320 3321 #ifdef DEV_SPLASH 3322 if (vd->vd_flags & VDF_SPLASH) 3323 vtterm_splash(vd); 3324 #endif 3325 3326 if (vd->vd_flags & VDF_ASYNC) { 3327 /* Allow to put chars now. */ 3328 terminal_mute(vd->vd_curwindow->vw_terminal, 0); 3329 /* Rerun timer for screen updates. */ 3330 vt_resume_flush_timer(vd->vd_curwindow, 0); 3331 } 3332 3333 /* 3334 * Register as console. If it already registered, cnadd() will ignore 3335 * it. 3336 */ 3337 termcn_cnregister(vd->vd_windows[VT_CONSWINDOW]->vw_terminal); 3338 } 3339 3340 static void 3341 vt_suspend_handler(void *priv, enum power_stype stype) 3342 { 3343 struct vt_device *vd; 3344 3345 vd = priv; 3346 vd->vd_flags |= VDF_SUSPENDED; 3347 if (vd->vd_driver != NULL && vd->vd_driver->vd_suspend != NULL) 3348 vd->vd_driver->vd_suspend(vd); 3349 } 3350 3351 static void 3352 vt_resume_handler(void *priv, enum power_stype stype) 3353 { 3354 struct vt_device *vd; 3355 3356 vd = priv; 3357 if (vd->vd_driver != NULL && vd->vd_driver->vd_resume != NULL) 3358 vd->vd_driver->vd_resume(vd); 3359 vd->vd_flags &= ~VDF_SUSPENDED; 3360 } 3361 3362 int 3363 vt_allocate(const struct vt_driver *drv, void *softc) 3364 { 3365 3366 if (!vty_enabled(VTY_VT)) 3367 return (EINVAL); 3368 3369 if (main_vd->vd_driver == NULL) { 3370 main_vd->vd_driver = drv; 3371 printf("VT: initialize with new VT driver \"%s\".\n", 3372 drv->vd_name); 3373 } else { 3374 /* 3375 * Check if have rights to replace current driver. For example: 3376 * it is bad idea to replace KMS driver with generic VGA one. 3377 */ 3378 if (drv->vd_priority <= main_vd->vd_driver->vd_priority) { 3379 printf("VT: Driver priority %d too low. Current %d\n ", 3380 drv->vd_priority, main_vd->vd_driver->vd_priority); 3381 return (EEXIST); 3382 } 3383 printf("VT: Replacing driver \"%s\" with new \"%s\".\n", 3384 main_vd->vd_driver->vd_name, drv->vd_name); 3385 } 3386 3387 vt_replace_backend(drv, softc); 3388 3389 return (0); 3390 } 3391 3392 int 3393 vt_deallocate(const struct vt_driver *drv, void *softc) 3394 { 3395 3396 if (!vty_enabled(VTY_VT)) 3397 return (EINVAL); 3398 3399 if (main_vd->vd_prev_driver == NULL || 3400 main_vd->vd_driver != drv || 3401 main_vd->vd_softc != softc) 3402 return (EPERM); 3403 3404 printf("VT: Switching back from \"%s\" to \"%s\".\n", 3405 main_vd->vd_driver->vd_name, main_vd->vd_prev_driver->vd_name); 3406 3407 vt_replace_backend(NULL, NULL); 3408 3409 return (0); 3410 } 3411 3412 void 3413 vt_suspend(struct vt_device *vd) 3414 { 3415 int error; 3416 3417 if (vt_suspendswitch == 0) 3418 return; 3419 /* Save current window. */ 3420 vd->vd_savedwindow = vd->vd_curwindow; 3421 /* Ask holding process to free window and switch to console window */ 3422 vt_proc_window_switch(vd->vd_windows[VT_CONSWINDOW]); 3423 3424 /* Wait for the window switch to complete. */ 3425 error = 0; 3426 VT_LOCK(vd); 3427 while (vd->vd_curwindow != vd->vd_windows[VT_CONSWINDOW] && error == 0) 3428 error = cv_wait_sig(&vd->vd_winswitch, &vd->vd_lock); 3429 VT_UNLOCK(vd); 3430 } 3431 3432 void 3433 vt_resume(struct vt_device *vd) 3434 { 3435 3436 if (vt_suspendswitch == 0) 3437 return; 3438 /* Switch back to saved window, if any */ 3439 vt_proc_window_switch(vd->vd_savedwindow); 3440 vd->vd_savedwindow = NULL; 3441 } 3442