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/limits.h> 44 #include <sys/linker.h> 45 #include <sys/lock.h> 46 #include <sys/malloc.h> 47 #include <sys/mutex.h> 48 #include <sys/splash.h> 49 #include <sys/power.h> 50 #include <sys/priv.h> 51 #include <sys/proc.h> 52 #include <sys/random.h> 53 #include <sys/reboot.h> 54 #include <sys/sbuf.h> 55 #include <sys/systm.h> 56 #include <sys/terminal.h> 57 58 #include <dev/kbd/kbdreg.h> 59 #include <dev/vt/vt.h> 60 61 #if defined(__i386__) || defined(__amd64__) 62 #include <machine/psl.h> 63 #include <machine/frame.h> 64 #endif 65 66 static int vtterm_cngrab_noswitch(struct vt_device *, struct vt_window *); 67 static int vtterm_cnungrab_noswitch(struct vt_device *, struct vt_window *); 68 69 static tc_bell_t vtterm_bell; 70 static tc_cursor_t vtterm_cursor; 71 static tc_putchar_t vtterm_putchar; 72 static tc_fill_t vtterm_fill; 73 static tc_copy_t vtterm_copy; 74 static tc_pre_input_t vtterm_pre_input; 75 static tc_post_input_t vtterm_post_input; 76 static tc_param_t vtterm_param; 77 static tc_done_t vtterm_done; 78 79 static tc_cnprobe_t vtterm_cnprobe; 80 static tc_cngetc_t vtterm_cngetc; 81 82 static tc_cngrab_t vtterm_cngrab; 83 static tc_cnungrab_t vtterm_cnungrab; 84 85 static tc_opened_t vtterm_opened; 86 static tc_ioctl_t vtterm_ioctl; 87 static tc_mmap_t vtterm_mmap; 88 89 static const struct terminal_class vt_termclass = { 90 .tc_bell = vtterm_bell, 91 .tc_cursor = vtterm_cursor, 92 .tc_putchar = vtterm_putchar, 93 .tc_fill = vtterm_fill, 94 .tc_copy = vtterm_copy, 95 .tc_pre_input = vtterm_pre_input, 96 .tc_post_input = vtterm_post_input, 97 .tc_param = vtterm_param, 98 .tc_done = vtterm_done, 99 100 .tc_cnprobe = vtterm_cnprobe, 101 .tc_cngetc = vtterm_cngetc, 102 103 .tc_cngrab = vtterm_cngrab, 104 .tc_cnungrab = vtterm_cnungrab, 105 106 .tc_opened = vtterm_opened, 107 .tc_ioctl = vtterm_ioctl, 108 .tc_mmap = vtterm_mmap, 109 }; 110 111 /* 112 * Use a constant timer of 25 Hz to redraw the screen. 113 * 114 * XXX: In theory we should only fire up the timer when there is really 115 * activity. Unfortunately we cannot always start timers. We really 116 * don't want to process kernel messages synchronously, because it 117 * really slows down the system. 118 */ 119 #define VT_TIMERFREQ 25 120 121 /* Bell pitch/duration. */ 122 #define VT_BELLDURATION (SBT_1S / 20) 123 #define VT_BELLPITCH 800 124 125 #define VT_UNIT(vw) ((vw)->vw_device->vd_unit * VT_MAXWINDOWS + \ 126 (vw)->vw_number) 127 128 static SYSCTL_NODE(_kern, OID_AUTO, vt, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, 129 "vt(4) parameters"); 130 static VT_SYSCTL_INT(enable_altgr, 1, "Enable AltGr key (Do not assume R.Alt as Alt)"); 131 static VT_SYSCTL_INT(enable_bell, 0, "Enable bell"); 132 static VT_SYSCTL_INT(debug, 0, "vt(4) debug level"); 133 static VT_SYSCTL_INT(deadtimer, 15, "Time to wait busy process in VT_PROCESS mode"); 134 static VT_SYSCTL_INT(suspendswitch, 1, "Switch to VT0 before suspend"); 135 136 /* Slow down and dont rely on timers and interrupts */ 137 static VT_SYSCTL_INT(slow_down, 0, "Non-zero make console slower and synchronous."); 138 139 /* Allow to disable some keyboard combinations. */ 140 static VT_SYSCTL_INT(kbd_halt, 1, "Enable halt keyboard combination. " 141 "See kbdmap(5) to configure."); 142 static VT_SYSCTL_INT(kbd_poweroff, 1, "Enable Power Off keyboard combination. " 143 "See kbdmap(5) to configure."); 144 static VT_SYSCTL_INT(kbd_reboot, 1, "Enable reboot keyboard combination. " 145 "See kbdmap(5) to configure (typically Ctrl-Alt-Delete)."); 146 static VT_SYSCTL_INT(kbd_debug, 1, "Enable key combination to enter debugger. " 147 "See kbdmap(5) to configure (typically Ctrl-Alt-Esc)."); 148 static VT_SYSCTL_INT(kbd_panic, 0, "Enable request to panic. " 149 "See kbdmap(5) to configure."); 150 151 /* Used internally, not a tunable. */ 152 int vt_draw_logo_cpus; 153 VT_SYSCTL_INT(splash_cpu, 0, "Show logo CPUs during boot"); 154 VT_SYSCTL_INT(splash_ncpu, 0, "Override number of logos displayed " 155 "(0 = do not override)"); 156 VT_SYSCTL_INT(splash_cpu_style, 2, "Draw logo style " 157 "(0 = Alternate beastie, 1 = Beastie, 2 = Orb)"); 158 VT_SYSCTL_INT(splash_cpu_duration, 10, "Hide logos after (seconds)"); 159 160 static unsigned int vt_unit = 0; 161 static MALLOC_DEFINE(M_VT, "vt", "vt device"); 162 struct vt_device *main_vd = &vt_consdev; 163 164 /* Boot logo. */ 165 extern unsigned int vt_logo_width; 166 extern unsigned int vt_logo_height; 167 extern unsigned int vt_logo_depth; 168 extern unsigned char vt_logo_image[]; 169 #ifndef DEV_SPLASH 170 #define vtterm_draw_cpu_logos(...) do {} while (0) 171 const unsigned int vt_logo_sprite_height; 172 #endif 173 174 /* 175 * Console font. vt_font_loader will be filled with font data passed 176 * by loader. If there is no font passed by boot loader, we use built in 177 * default. 178 */ 179 extern struct vt_font vt_font_default; 180 static struct vt_font vt_font_loader; 181 static struct vt_font *vt_font_assigned = &vt_font_default; 182 183 #ifndef SC_NO_CUTPASTE 184 extern struct vt_mouse_cursor vt_default_mouse_pointer; 185 #endif 186 187 static int signal_vt_rel(struct vt_window *); 188 static int signal_vt_acq(struct vt_window *); 189 static int finish_vt_rel(struct vt_window *, int, int *); 190 static int finish_vt_acq(struct vt_window *); 191 static int vt_window_switch(struct vt_window *); 192 static int vt_late_window_switch(struct vt_window *); 193 static int vt_proc_alive(struct vt_window *); 194 static void vt_resize(struct vt_device *); 195 static void vt_update_static(void *); 196 #ifndef SC_NO_CUTPASTE 197 static void vt_mouse_paste(void); 198 #endif 199 static void vt_suspend_handler(void *priv, enum power_stype stype); 200 static void vt_resume_handler(void *priv, enum power_stype stype); 201 202 SET_DECLARE(vt_drv_set, struct vt_driver); 203 204 #define _VTDEFH MAX(100, PIXEL_HEIGHT(VT_FB_MAX_HEIGHT)) 205 #define _VTDEFW MAX(200, PIXEL_WIDTH(VT_FB_MAX_WIDTH)) 206 207 static struct terminal vt_consterm; 208 static struct vt_window vt_conswindow; 209 static term_char_t vt_consdrawn[PIXEL_HEIGHT(VT_FB_MAX_HEIGHT) * PIXEL_WIDTH(VT_FB_MAX_WIDTH)]; 210 static term_color_t vt_consdrawnfg[PIXEL_HEIGHT(VT_FB_MAX_HEIGHT) * PIXEL_WIDTH(VT_FB_MAX_WIDTH)]; 211 static term_color_t vt_consdrawnbg[PIXEL_HEIGHT(VT_FB_MAX_HEIGHT) * PIXEL_WIDTH(VT_FB_MAX_WIDTH)]; 212 static bool vt_cons_pos_to_flush[PIXEL_HEIGHT(VT_FB_MAX_HEIGHT) * PIXEL_WIDTH(VT_FB_MAX_WIDTH)]; 213 struct vt_device vt_consdev = { 214 .vd_driver = NULL, 215 .vd_softc = NULL, 216 .vd_prev_driver = NULL, 217 .vd_prev_softc = NULL, 218 .vd_flags = VDF_INVALID, 219 .vd_windows = { [VT_CONSWINDOW] = &vt_conswindow, }, 220 .vd_curwindow = &vt_conswindow, 221 .vd_kbstate = 0, 222 223 #ifndef SC_NO_CUTPASTE 224 .vd_pastebuf = { 225 .vpb_buf = NULL, 226 .vpb_bufsz = 0, 227 .vpb_len = 0 228 }, 229 .vd_mcursor = &vt_default_mouse_pointer, 230 .vd_mcursor_fg = TC_WHITE, 231 .vd_mcursor_bg = TC_BLACK, 232 #endif 233 234 .vd_drawn = vt_consdrawn, 235 .vd_drawnfg = vt_consdrawnfg, 236 .vd_drawnbg = vt_consdrawnbg, 237 238 .vd_pos_to_flush = vt_cons_pos_to_flush, 239 }; 240 static term_char_t vt_constextbuf[(_VTDEFW) * (VBF_DEFAULT_HISTORY_SIZE)]; 241 static term_char_t *vt_constextbufrows[VBF_DEFAULT_HISTORY_SIZE]; 242 static struct vt_window vt_conswindow = { 243 .vw_number = VT_CONSWINDOW, 244 .vw_flags = VWF_CONSOLE, 245 .vw_buf = { 246 .vb_buffer = &vt_constextbuf[0], 247 .vb_rows = &vt_constextbufrows[0], 248 .vb_history_size = VBF_DEFAULT_HISTORY_SIZE, 249 .vb_curroffset = 0, 250 .vb_roffset = 0, 251 .vb_flags = VBF_STATIC, 252 .vb_mark_start = {.tp_row = 0, .tp_col = 0,}, 253 .vb_mark_end = {.tp_row = 0, .tp_col = 0,}, 254 .vb_scr_size = { 255 .tp_row = _VTDEFH, 256 .tp_col = _VTDEFW, 257 }, 258 }, 259 .vw_device = &vt_consdev, 260 .vw_terminal = &vt_consterm, 261 .vw_kbdmode = K_XLATE, 262 .vw_grabbed = 0, 263 .vw_bell_pitch = VT_BELLPITCH, 264 .vw_bell_duration = VT_BELLDURATION, 265 }; 266 267 /* Add to set of consoles. */ 268 TERMINAL_DECLARE_EARLY(vt_consterm, vt_termclass, &vt_conswindow); 269 270 /* 271 * Right after kmem is done to allow early drivers to use locking and allocate 272 * memory. 273 */ 274 SYSINIT(vt_update_static, SI_SUB_KMEM, SI_ORDER_ANY, vt_update_static, 275 &vt_consdev); 276 /* Delay until all devices attached, to not waste time. */ 277 SYSINIT(vt_early_cons, SI_SUB_INT_CONFIG_HOOKS, SI_ORDER_ANY, vt_upgrade, 278 &vt_consdev); 279 280 static bool inside_vt_flush = false; 281 static bool inside_vt_window_switch = false; 282 283 /* Initialize locks/mem depended members. */ 284 static void 285 vt_update_static(void *dummy) 286 { 287 288 if (!vty_enabled(VTY_VT)) 289 return; 290 if (main_vd->vd_driver != NULL) 291 printf("VT(%s): %s %ux%u\n", main_vd->vd_driver->vd_name, 292 (main_vd->vd_flags & VDF_TEXTMODE) ? "text" : "resolution", 293 main_vd->vd_width, main_vd->vd_height); 294 else 295 printf("VT: init without driver.\n"); 296 297 mtx_init(&main_vd->vd_lock, "vtdev", NULL, MTX_DEF); 298 mtx_init(&main_vd->vd_flush_lock, "vtdev flush", NULL, MTX_DEF); 299 cv_init(&main_vd->vd_winswitch, "vtwswt"); 300 } 301 302 static void 303 vt_schedule_flush(struct vt_device *vd, int ms) 304 { 305 306 if (ms <= 0) 307 /* Default to initial value. */ 308 ms = 1000 / VT_TIMERFREQ; 309 310 callout_schedule(&vd->vd_timer, hz / (1000 / ms)); 311 } 312 313 void 314 vt_resume_flush_timer(struct vt_window *vw, int ms) 315 { 316 struct vt_device *vd = vw->vw_device; 317 318 if (vd->vd_curwindow != vw) 319 return; 320 321 if (!(vd->vd_flags & VDF_ASYNC) || 322 !atomic_cmpset_int(&vd->vd_timer_armed, 0, 1)) 323 return; 324 325 vt_schedule_flush(vd, ms); 326 } 327 328 static void 329 vt_suspend_flush_timer(struct vt_device *vd) 330 { 331 /* 332 * As long as this function is called locked, callout_stop() 333 * has the same effect like callout_drain() with regard to 334 * preventing the callback function from executing. 335 */ 336 VT_LOCK_ASSERT(vd, MA_OWNED); 337 338 if (!(vd->vd_flags & VDF_ASYNC) || 339 !atomic_cmpset_int(&vd->vd_timer_armed, 1, 0)) 340 return; 341 342 callout_stop(&vd->vd_timer); 343 } 344 345 static void 346 vt_switch_timer(void *arg, int pending) 347 { 348 349 (void)vt_late_window_switch((struct vt_window *)arg); 350 } 351 352 static int 353 vt_save_kbd_mode(struct vt_window *vw, keyboard_t *kbd) 354 { 355 int mode, ret; 356 357 mode = 0; 358 ret = kbdd_ioctl(kbd, KDGKBMODE, (caddr_t)&mode); 359 if (ret == ENOIOCTL) 360 ret = ENODEV; 361 if (ret != 0) 362 return (ret); 363 364 vw->vw_kbdmode = mode; 365 366 return (0); 367 } 368 369 static int 370 vt_update_kbd_mode(struct vt_window *vw, keyboard_t *kbd) 371 { 372 int ret; 373 374 ret = kbdd_ioctl(kbd, KDSKBMODE, (caddr_t)&vw->vw_kbdmode); 375 if (ret == ENOIOCTL) 376 ret = ENODEV; 377 378 return (ret); 379 } 380 381 static int 382 vt_save_kbd_state(struct vt_window *vw, keyboard_t *kbd) 383 { 384 int state, ret; 385 386 state = 0; 387 ret = kbdd_ioctl(kbd, KDGKBSTATE, (caddr_t)&state); 388 if (ret == ENOIOCTL) 389 ret = ENODEV; 390 if (ret != 0) 391 return (ret); 392 393 vw->vw_kbdstate &= ~LOCK_MASK; 394 vw->vw_kbdstate |= state & LOCK_MASK; 395 396 return (0); 397 } 398 399 static int 400 vt_update_kbd_state(struct vt_window *vw, keyboard_t *kbd) 401 { 402 int state, ret; 403 404 state = vw->vw_kbdstate & LOCK_MASK; 405 ret = kbdd_ioctl(kbd, KDSKBSTATE, (caddr_t)&state); 406 if (ret == ENOIOCTL) 407 ret = ENODEV; 408 409 return (ret); 410 } 411 412 static int 413 vt_save_kbd_leds(struct vt_window *vw, keyboard_t *kbd) 414 { 415 int leds, ret; 416 417 leds = 0; 418 ret = kbdd_ioctl(kbd, KDGETLED, (caddr_t)&leds); 419 if (ret == ENOIOCTL) 420 ret = ENODEV; 421 if (ret != 0) 422 return (ret); 423 424 vw->vw_kbdstate &= ~LED_MASK; 425 vw->vw_kbdstate |= leds & LED_MASK; 426 427 return (0); 428 } 429 430 static int 431 vt_update_kbd_leds(struct vt_window *vw, keyboard_t *kbd) 432 { 433 int leds, ret; 434 435 leds = vw->vw_kbdstate & LED_MASK; 436 ret = kbdd_ioctl(kbd, KDSETLED, (caddr_t)&leds); 437 if (ret == ENOIOCTL) 438 ret = ENODEV; 439 440 return (ret); 441 } 442 443 static int 444 vt_window_preswitch(struct vt_window *vw, struct vt_window *curvw) 445 { 446 447 DPRINTF(40, "%s\n", __func__); 448 curvw->vw_switch_to = vw; 449 /* Set timer to allow switch in case when process hang. */ 450 taskqueue_enqueue_timeout(taskqueue_thread, &vw->vw_timeout_task_dead, hz * vt_deadtimer); 451 /* Notify process about vt switch attempt. */ 452 DPRINTF(30, "%s: Notify process.\n", __func__); 453 signal_vt_rel(curvw); 454 455 return (0); 456 } 457 458 static int 459 vt_window_postswitch(struct vt_window *vw) 460 { 461 462 signal_vt_acq(vw); 463 return (0); 464 } 465 466 /* vt_late_window_switch will do VT switching for regular case. */ 467 static int 468 vt_late_window_switch(struct vt_window *vw) 469 { 470 struct vt_window *curvw; 471 int ret; 472 473 taskqueue_cancel_timeout(taskqueue_thread, &vw->vw_timeout_task_dead, NULL); 474 475 ret = vt_window_switch(vw); 476 if (ret != 0) { 477 /* 478 * If the switch hasn't happened, then return the VT 479 * to the current owner, if any. 480 */ 481 curvw = vw->vw_device->vd_curwindow; 482 if (curvw->vw_smode.mode == VT_PROCESS) 483 (void)vt_window_postswitch(curvw); 484 return (ret); 485 } 486 487 /* Notify owner process about terminal availability. */ 488 if (vw->vw_smode.mode == VT_PROCESS) { 489 ret = vt_window_postswitch(vw); 490 } 491 return (ret); 492 } 493 494 /* Switch window. */ 495 static int 496 vt_proc_window_switch(struct vt_window *vw) 497 { 498 struct vt_window *curvw; 499 struct vt_device *vd; 500 int ret; 501 502 /* Prevent switching to NULL */ 503 if (vw == NULL) { 504 DPRINTF(30, "%s: Cannot switch: vw is NULL.", __func__); 505 return (EINVAL); 506 } 507 vd = vw->vw_device; 508 curvw = vd->vd_curwindow; 509 510 /* Check if virtual terminal is locked */ 511 if (curvw->vw_flags & VWF_VTYLOCK) 512 return (EBUSY); 513 514 /* Check if switch already in progress */ 515 if (curvw->vw_flags & VWF_SWWAIT_REL) { 516 /* Check if switching to same window */ 517 if (curvw->vw_switch_to == vw) { 518 DPRINTF(30, "%s: Switch in progress to same vw.", __func__); 519 return (0); /* success */ 520 } 521 DPRINTF(30, "%s: Switch in progress to different vw.", __func__); 522 return (EBUSY); 523 } 524 525 /* Avoid switching to already selected window */ 526 if (vw == curvw) { 527 DPRINTF(30, "%s: Cannot switch: vw == curvw.", __func__); 528 return (0); /* success */ 529 } 530 531 /* 532 * Early check for an attempt to switch to a non-functional VT. 533 * The same check is done in vt_window_switch(), but it's better 534 * to fail as early as possible to avoid needless pre-switch 535 * actions. 536 */ 537 VT_LOCK(vd); 538 if ((vw->vw_flags & (VWF_OPENED|VWF_CONSOLE)) == 0) { 539 VT_UNLOCK(vd); 540 return (EINVAL); 541 } 542 VT_UNLOCK(vd); 543 544 /* Ask current process permission to switch away. */ 545 if (curvw->vw_smode.mode == VT_PROCESS) { 546 DPRINTF(30, "%s: VT_PROCESS ", __func__); 547 if (vt_proc_alive(curvw) == FALSE) { 548 DPRINTF(30, "Dead. Cleaning."); 549 /* Dead */ 550 } else { 551 DPRINTF(30, "%s: Signaling process.\n", __func__); 552 /* Alive, try to ask him. */ 553 ret = vt_window_preswitch(vw, curvw); 554 /* Wait for process answer or timeout. */ 555 return (ret); 556 } 557 DPRINTF(30, "\n"); 558 } 559 560 ret = vt_late_window_switch(vw); 561 return (ret); 562 } 563 564 /* Switch window ignoring process locking. */ 565 static int 566 vt_window_switch(struct vt_window *vw) 567 { 568 struct vt_device *vd = vw->vw_device; 569 struct vt_window *curvw = vd->vd_curwindow; 570 keyboard_t *kbd; 571 572 if (inside_vt_window_switch && KERNEL_PANICKED()) 573 return (0); 574 575 inside_vt_window_switch = true; 576 577 if (kdb_active) { 578 /* 579 * When grabbing the console for the debugger, avoid 580 * locks as that can result in deadlock. While this 581 * could use try locks, that wouldn't really make a 582 * difference as there are sufficient barriers in 583 * debugger entry/exit to be equivalent to 584 * successfully try-locking here. 585 */ 586 if (!(vw->vw_flags & (VWF_OPENED|VWF_CONSOLE))) { 587 inside_vt_window_switch = false; 588 return (EINVAL); 589 } 590 591 vd->vd_curwindow = vw; 592 vd->vd_flags |= VDF_INVALID; 593 if (vd->vd_driver->vd_postswitch) 594 vd->vd_driver->vd_postswitch(vd); 595 inside_vt_window_switch = false; 596 return (0); 597 } 598 599 VT_LOCK(vd); 600 if (curvw == vw) { 601 /* 602 * Nothing to do, except ensure the driver has the opportunity to 603 * switch to console mode when panicking, making sure the panic 604 * is readable (even when a GUI was using ttyv0). 605 */ 606 if ((kdb_active || KERNEL_PANICKED()) && 607 vd->vd_driver->vd_postswitch) 608 vd->vd_driver->vd_postswitch(vd); 609 inside_vt_window_switch = false; 610 VT_UNLOCK(vd); 611 return (0); 612 } 613 if (!(vw->vw_flags & (VWF_OPENED|VWF_CONSOLE))) { 614 inside_vt_window_switch = false; 615 VT_UNLOCK(vd); 616 return (EINVAL); 617 } 618 619 vt_suspend_flush_timer(vd); 620 621 vd->vd_curwindow = vw; 622 vd->vd_flags |= VDF_INVALID; 623 cv_broadcast(&vd->vd_winswitch); 624 VT_UNLOCK(vd); 625 626 if (vd->vd_driver->vd_postswitch) 627 vd->vd_driver->vd_postswitch(vd); 628 629 vt_resume_flush_timer(vw, 0); 630 631 /* Restore per-window keyboard mode. */ 632 mtx_lock(&Giant); 633 if ((kbd = vd->vd_keyboard) != NULL) { 634 if (curvw->vw_kbdmode == K_XLATE) 635 vt_save_kbd_state(curvw, kbd); 636 637 vt_update_kbd_mode(vw, kbd); 638 vt_update_kbd_state(vw, kbd); 639 } 640 mtx_unlock(&Giant); 641 DPRINTF(10, "%s(ttyv%d) done\n", __func__, vw->vw_number); 642 643 inside_vt_window_switch = false; 644 return (0); 645 } 646 647 void 648 vt_termsize(struct vt_device *vd, struct vt_font *vf, term_pos_t *size) 649 { 650 651 size->tp_row = vd->vd_height; 652 if (vt_draw_logo_cpus) 653 size->tp_row -= vt_logo_sprite_height; 654 size->tp_col = vd->vd_width; 655 if (vf != NULL) { 656 size->tp_row = MIN(size->tp_row / vf->vf_height, 657 PIXEL_HEIGHT(VT_FB_MAX_HEIGHT)); 658 size->tp_col = MIN(size->tp_col / vf->vf_width, 659 PIXEL_WIDTH(VT_FB_MAX_WIDTH)); 660 } 661 } 662 663 static inline void 664 vt_termrect(struct vt_device *vd, struct vt_font *vf, term_rect_t *rect) 665 { 666 667 rect->tr_begin.tp_row = rect->tr_begin.tp_col = 0; 668 if (vt_draw_logo_cpus) 669 rect->tr_begin.tp_row = vt_logo_sprite_height; 670 671 rect->tr_end.tp_row = vd->vd_height; 672 rect->tr_end.tp_col = vd->vd_width; 673 674 if (vf != NULL) { 675 rect->tr_begin.tp_row = 676 howmany(rect->tr_begin.tp_row, vf->vf_height); 677 678 rect->tr_end.tp_row = MIN(rect->tr_end.tp_row / vf->vf_height, 679 PIXEL_HEIGHT(VT_FB_MAX_HEIGHT)); 680 rect->tr_end.tp_col = MIN(rect->tr_end.tp_col / vf->vf_width, 681 PIXEL_WIDTH(VT_FB_MAX_WIDTH)); 682 } 683 } 684 685 void 686 vt_winsize(struct vt_device *vd, struct vt_font *vf, struct winsize *size) 687 { 688 689 size->ws_ypixel = vd->vd_height; 690 if (vt_draw_logo_cpus) 691 size->ws_ypixel -= vt_logo_sprite_height; 692 size->ws_row = size->ws_ypixel; 693 size->ws_col = size->ws_xpixel = vd->vd_width; 694 if (vf != NULL) { 695 size->ws_row = MIN(size->ws_row / vf->vf_height, 696 PIXEL_HEIGHT(VT_FB_MAX_HEIGHT)); 697 size->ws_col = MIN(size->ws_col / vf->vf_width, 698 PIXEL_WIDTH(VT_FB_MAX_WIDTH)); 699 } 700 } 701 702 void 703 vt_compute_drawable_area(struct vt_window *vw) 704 { 705 struct vt_device *vd; 706 struct vt_font *vf; 707 vt_axis_t height; 708 709 vd = vw->vw_device; 710 711 if (vw->vw_font == NULL) { 712 vw->vw_draw_area.tr_begin.tp_col = 0; 713 vw->vw_draw_area.tr_begin.tp_row = 0; 714 if (vt_draw_logo_cpus) 715 vw->vw_draw_area.tr_begin.tp_row = vt_logo_sprite_height; 716 vw->vw_draw_area.tr_end.tp_col = vd->vd_width; 717 vw->vw_draw_area.tr_end.tp_row = vd->vd_height; 718 return; 719 } 720 721 vf = vw->vw_font; 722 723 /* 724 * Compute the drawable area, so that the text is centered on 725 * the screen. 726 */ 727 728 height = vd->vd_height; 729 if (vt_draw_logo_cpus) 730 height -= vt_logo_sprite_height; 731 vw->vw_draw_area.tr_begin.tp_col = (vd->vd_width % vf->vf_width) / 2; 732 vw->vw_draw_area.tr_begin.tp_row = (height % vf->vf_height) / 2; 733 if (vt_draw_logo_cpus) 734 vw->vw_draw_area.tr_begin.tp_row += vt_logo_sprite_height; 735 vw->vw_draw_area.tr_end.tp_col = vw->vw_draw_area.tr_begin.tp_col + 736 rounddown(vd->vd_width, vf->vf_width); 737 vw->vw_draw_area.tr_end.tp_row = vw->vw_draw_area.tr_begin.tp_row + 738 rounddown(height, vf->vf_height); 739 } 740 741 static void 742 vt_scroll(struct vt_window *vw, int offset, int whence) 743 { 744 int diff; 745 term_pos_t size; 746 747 if ((vw->vw_flags & VWF_SCROLL) == 0) 748 return; 749 750 vt_termsize(vw->vw_device, vw->vw_font, &size); 751 752 diff = vthistory_seek(&vw->vw_buf, offset, whence); 753 if (diff) 754 vw->vw_device->vd_flags |= VDF_INVALID; 755 vt_resume_flush_timer(vw, 0); 756 } 757 758 static int 759 vt_machine_kbdevent(struct vt_device *vd, int c) 760 { 761 762 switch (c) { 763 case SPCLKEY | DBG: /* kbdmap(5) keyword `debug`. */ 764 if (vt_kbd_debug) { 765 kdb_enter(KDB_WHY_BREAK, "manual escape to debugger"); 766 #if VT_ALT_TO_ESC_HACK 767 /* 768 * There's an unfortunate conflict between SPCLKEY|DBG 769 * and VT_ALT_TO_ESC_HACK. Just assume they didn't mean 770 * it if we got to here. 771 */ 772 vd->vd_kbstate &= ~ALKED; 773 #endif 774 } 775 return (1); 776 case SPCLKEY | HALT: /* kbdmap(5) keyword `halt`. */ 777 if (vt_kbd_halt) 778 shutdown_nice(RB_HALT); 779 return (1); 780 case SPCLKEY | PASTE: /* kbdmap(5) keyword `paste`. */ 781 #ifndef SC_NO_CUTPASTE 782 /* Insert text from cut-paste buffer. */ 783 vt_mouse_paste(); 784 #endif 785 break; 786 case SPCLKEY | PDWN: /* kbdmap(5) keyword `pdwn`. */ 787 if (vt_kbd_poweroff) 788 shutdown_nice(RB_HALT|RB_POWEROFF); 789 return (1); 790 case SPCLKEY | PNC: /* kbdmap(5) keyword `panic`. */ 791 /* 792 * Request to immediate panic if sysctl 793 * kern.vt.enable_panic_key allow it. 794 */ 795 if (vt_kbd_panic) 796 panic("Forced by the panic key"); 797 return (1); 798 case SPCLKEY | RBT: /* kbdmap(5) keyword `boot`. */ 799 if (vt_kbd_reboot) 800 shutdown_nice(RB_AUTOBOOT); 801 return (1); 802 case SPCLKEY | SPSC: /* kbdmap(5) keyword `spsc`. */ 803 /* Force activatation/deactivation of the screen saver. */ 804 /* TODO */ 805 return (1); 806 case SPCLKEY | STBY: /* XXX Not present in kbdcontrol parser. */ 807 /* Put machine into Stand-By mode. */ 808 (void)power_pm_suspend(POWER_TRANSITION_STANDBY); 809 return (1); 810 case SPCLKEY | SUSP: /* kbdmap(5) keyword `susp`. */ 811 /* Suspend machine. */ 812 (void)power_pm_suspend(POWER_TRANSITION_SUSPEND); 813 return (1); 814 } 815 816 return (0); 817 } 818 819 static void 820 vt_scrollmode_kbdevent(struct vt_window *vw, int c, int console) 821 { 822 struct vt_device *vd; 823 term_pos_t size; 824 825 vd = vw->vw_device; 826 /* Only special keys handled in ScrollLock mode */ 827 if ((c & SPCLKEY) == 0) 828 return; 829 830 c &= ~SPCLKEY; 831 832 if (console == 0) { 833 if (c >= F_SCR && c <= MIN(L_SCR, F_SCR + VT_MAXWINDOWS - 1)) { 834 vw = vd->vd_windows[c - F_SCR]; 835 vt_proc_window_switch(vw); 836 return; 837 } 838 VT_LOCK(vd); 839 } 840 841 switch (c) { 842 case SLK: { 843 /* Turn scrolling off. */ 844 vt_scroll(vw, 0, VHS_END); 845 VTBUF_SLCK_DISABLE(&vw->vw_buf); 846 vw->vw_flags &= ~VWF_SCROLL; 847 break; 848 } 849 case FKEY | F(49): /* Home key. */ 850 vt_scroll(vw, 0, VHS_SET); 851 break; 852 case FKEY | F(50): /* Arrow up. */ 853 vt_scroll(vw, -1, VHS_CUR); 854 break; 855 case FKEY | F(51): /* Page up. */ 856 vt_termsize(vd, vw->vw_font, &size); 857 vt_scroll(vw, -size.tp_row, VHS_CUR); 858 break; 859 case FKEY | F(57): /* End key. */ 860 vt_scroll(vw, 0, VHS_END); 861 break; 862 case FKEY | F(58): /* Arrow down. */ 863 vt_scroll(vw, 1, VHS_CUR); 864 break; 865 case FKEY | F(59): /* Page down. */ 866 vt_termsize(vd, vw->vw_font, &size); 867 vt_scroll(vw, size.tp_row, VHS_CUR); 868 break; 869 } 870 871 if (console == 0) 872 VT_UNLOCK(vd); 873 } 874 875 static int 876 vt_processkey(keyboard_t *kbd, struct vt_device *vd, int c) 877 { 878 struct vt_window *vw = vd->vd_curwindow; 879 880 #ifdef RANDOM_ENABLE_KBD 881 random_harvest_queue(&c, sizeof(c), RANDOM_KEYBOARD); 882 #endif 883 #if VT_ALT_TO_ESC_HACK 884 if (c & RELKEY) { 885 switch (c & ~RELKEY) { 886 case (SPCLKEY | RALT): 887 if (vt_enable_altgr != 0) 888 break; 889 case (SPCLKEY | LALT): 890 vd->vd_kbstate &= ~ALKED; 891 } 892 /* Other keys ignored for RELKEY event. */ 893 return (0); 894 } else { 895 switch (c & ~RELKEY) { 896 case (SPCLKEY | RALT): 897 if (vt_enable_altgr != 0) 898 break; 899 case (SPCLKEY | LALT): 900 vd->vd_kbstate |= ALKED; 901 } 902 } 903 #else 904 if (c & RELKEY) 905 /* Other keys ignored for RELKEY event. */ 906 return (0); 907 #endif 908 909 if (vt_machine_kbdevent(vd, c)) 910 return (0); 911 912 if (vw->vw_flags & VWF_SCROLL) { 913 vt_scrollmode_kbdevent(vw, c, 0/* Not a console */); 914 /* Scroll mode keys handled, nothing to do more. */ 915 return (0); 916 } 917 918 if (c & SPCLKEY) { 919 c &= ~SPCLKEY; 920 921 if (c >= F_SCR && c <= MIN(L_SCR, F_SCR + VT_MAXWINDOWS - 1)) { 922 vw = vd->vd_windows[c - F_SCR]; 923 vt_proc_window_switch(vw); 924 return (0); 925 } 926 927 switch (c) { 928 case NEXT: 929 /* Switch to next VT. */ 930 c = (vw->vw_number + 1) % VT_MAXWINDOWS; 931 vw = vd->vd_windows[c]; 932 vt_proc_window_switch(vw); 933 return (0); 934 case PREV: 935 /* Switch to previous VT. */ 936 c = (vw->vw_number + VT_MAXWINDOWS - 1) % VT_MAXWINDOWS; 937 vw = vd->vd_windows[c]; 938 vt_proc_window_switch(vw); 939 return (0); 940 case SLK: { 941 vt_save_kbd_state(vw, kbd); 942 VT_LOCK(vd); 943 if (vw->vw_kbdstate & SLKED) { 944 /* Turn scrolling on. */ 945 vw->vw_flags |= VWF_SCROLL; 946 VTBUF_SLCK_ENABLE(&vw->vw_buf); 947 } else { 948 /* Turn scrolling off. */ 949 vw->vw_flags &= ~VWF_SCROLL; 950 VTBUF_SLCK_DISABLE(&vw->vw_buf); 951 vt_scroll(vw, 0, VHS_END); 952 } 953 VT_UNLOCK(vd); 954 break; 955 } 956 case BKEY | BTAB: /* Back tab (usually, shift+tab). */ 957 terminal_input_special(vw->vw_terminal, TKEY_BTAB); 958 break; 959 case FKEY | F(1): case FKEY | F(2): case FKEY | F(3): 960 case FKEY | F(4): case FKEY | F(5): case FKEY | F(6): 961 case FKEY | F(7): case FKEY | F(8): case FKEY | F(9): 962 case FKEY | F(10): case FKEY | F(11): case FKEY | F(12): 963 /* F1 through F12 keys. */ 964 terminal_input_special(vw->vw_terminal, 965 TKEY_F1 + c - (FKEY | F(1))); 966 break; 967 case FKEY | F(49): /* Home key. */ 968 terminal_input_special(vw->vw_terminal, TKEY_HOME); 969 break; 970 case FKEY | F(50): /* Arrow up. */ 971 terminal_input_special(vw->vw_terminal, TKEY_UP); 972 break; 973 case FKEY | F(51): /* Page up. */ 974 terminal_input_special(vw->vw_terminal, TKEY_PAGE_UP); 975 break; 976 case FKEY | F(53): /* Arrow left. */ 977 terminal_input_special(vw->vw_terminal, TKEY_LEFT); 978 break; 979 case FKEY | F(55): /* Arrow right. */ 980 terminal_input_special(vw->vw_terminal, TKEY_RIGHT); 981 break; 982 case FKEY | F(57): /* End key. */ 983 terminal_input_special(vw->vw_terminal, TKEY_END); 984 break; 985 case FKEY | F(58): /* Arrow down. */ 986 terminal_input_special(vw->vw_terminal, TKEY_DOWN); 987 break; 988 case FKEY | F(59): /* Page down. */ 989 terminal_input_special(vw->vw_terminal, TKEY_PAGE_DOWN); 990 break; 991 case FKEY | F(60): /* Insert key. */ 992 terminal_input_special(vw->vw_terminal, TKEY_INSERT); 993 break; 994 case FKEY | F(61): /* Delete key. */ 995 terminal_input_special(vw->vw_terminal, TKEY_DELETE); 996 break; 997 } 998 } else if (KEYFLAGS(c) == 0) { 999 /* Don't do UTF-8 conversion when doing raw mode. */ 1000 if (vw->vw_kbdmode == K_XLATE) { 1001 #if VT_ALT_TO_ESC_HACK 1002 if (vd->vd_kbstate & ALKED) { 1003 /* 1004 * Prepend ESC sequence if one of ALT keys down. 1005 */ 1006 terminal_input_char(vw->vw_terminal, 0x1b); 1007 } 1008 #endif 1009 #if defined(KDB) 1010 kdb_alt_break(c, &vd->vd_altbrk); 1011 #endif 1012 terminal_input_char(vw->vw_terminal, KEYCHAR(c)); 1013 } else 1014 terminal_input_raw(vw->vw_terminal, c); 1015 } 1016 return (0); 1017 } 1018 1019 static int 1020 vt_kbdevent(keyboard_t *kbd, int event, void *arg) 1021 { 1022 struct vt_device *vd = arg; 1023 int c; 1024 1025 switch (event) { 1026 case KBDIO_KEYINPUT: 1027 break; 1028 case KBDIO_UNLOADING: 1029 mtx_lock(&Giant); 1030 vd->vd_keyboard = NULL; 1031 kbd_release(kbd, (void *)vd); 1032 mtx_unlock(&Giant); 1033 return (0); 1034 default: 1035 return (EINVAL); 1036 } 1037 1038 while ((c = kbdd_read_char(kbd, 0)) != NOKEY) 1039 vt_processkey(kbd, vd, c); 1040 1041 return (0); 1042 } 1043 1044 static int 1045 vt_allocate_keyboard(struct vt_device *vd) 1046 { 1047 int grabbed, i, idx0, idx; 1048 keyboard_t *k0, *k; 1049 keyboard_info_t ki; 1050 1051 /* 1052 * If vt_upgrade() happens while the console is grabbed, we are 1053 * potentially going to switch keyboard devices while the keyboard is in 1054 * use. Unwind the grabbing of the current keyboard first, then we will 1055 * re-grab the new keyboard below, before we return. 1056 */ 1057 if (vd->vd_curwindow == &vt_conswindow) { 1058 grabbed = vd->vd_curwindow->vw_grabbed; 1059 for (i = 0; i < grabbed; ++i) 1060 vtterm_cnungrab_noswitch(vd, vd->vd_curwindow); 1061 } 1062 1063 idx0 = kbd_allocate("kbdmux", -1, vd, vt_kbdevent, vd); 1064 if (idx0 >= 0) { 1065 DPRINTF(20, "%s: kbdmux allocated, idx = %d\n", __func__, idx0); 1066 k0 = kbd_get_keyboard(idx0); 1067 1068 for (idx = kbd_find_keyboard2("*", -1, 0); 1069 idx != -1; 1070 idx = kbd_find_keyboard2("*", -1, idx + 1)) { 1071 k = kbd_get_keyboard(idx); 1072 1073 if (idx == idx0 || KBD_IS_BUSY(k)) 1074 continue; 1075 1076 bzero(&ki, sizeof(ki)); 1077 strncpy(ki.kb_name, k->kb_name, sizeof(ki.kb_name)); 1078 ki.kb_name[sizeof(ki.kb_name) - 1] = '\0'; 1079 ki.kb_unit = k->kb_unit; 1080 1081 kbdd_ioctl(k0, KBADDKBD, (caddr_t) &ki); 1082 } 1083 } else { 1084 DPRINTF(20, "%s: no kbdmux allocated\n", __func__); 1085 idx0 = kbd_allocate("*", -1, vd, vt_kbdevent, vd); 1086 if (idx0 < 0) { 1087 DPRINTF(10, "%s: No keyboard found.\n", __func__); 1088 return (-1); 1089 } 1090 k0 = kbd_get_keyboard(idx0); 1091 } 1092 vd->vd_keyboard = k0; 1093 DPRINTF(20, "%s: vd_keyboard = %d\n", __func__, 1094 vd->vd_keyboard->kb_index); 1095 1096 if (vd->vd_curwindow == &vt_conswindow) { 1097 for (i = 0; i < grabbed; ++i) 1098 vtterm_cngrab_noswitch(vd, vd->vd_curwindow); 1099 } 1100 1101 return (idx0); 1102 } 1103 1104 #define DEVCTL_LEN 64 1105 static void 1106 vtterm_devctl(bool enabled, bool hushed, int hz, sbintime_t duration) 1107 { 1108 struct sbuf sb; 1109 char *buf; 1110 1111 buf = malloc(DEVCTL_LEN, M_VT, M_NOWAIT); 1112 if (buf == NULL) 1113 return; 1114 sbuf_new(&sb, buf, DEVCTL_LEN, SBUF_FIXEDLEN); 1115 sbuf_printf(&sb, "enabled=%s hushed=%s hz=%d duration_ms=%d", 1116 enabled ? "true" : "false", hushed ? "true" : "false", 1117 hz, (int)(duration / SBT_1MS)); 1118 sbuf_finish(&sb); 1119 if (sbuf_error(&sb) == 0) 1120 devctl_notify("VT", "BELL", "RING", sbuf_data(&sb)); 1121 sbuf_delete(&sb); 1122 free(buf, M_VT); 1123 } 1124 1125 static void 1126 vtterm_bell(struct terminal *tm) 1127 { 1128 struct vt_window *vw = tm->tm_softc; 1129 struct vt_device *vd = vw->vw_device; 1130 1131 vtterm_devctl(vt_enable_bell, vd->vd_flags & VDF_QUIET_BELL, 1132 vw->vw_bell_pitch, vw->vw_bell_duration); 1133 1134 if (!vt_enable_bell) 1135 return; 1136 1137 if (vd->vd_flags & VDF_QUIET_BELL) 1138 return; 1139 1140 if (vw->vw_bell_pitch == 0 || 1141 vw->vw_bell_duration == 0) 1142 return; 1143 1144 sysbeep(vw->vw_bell_pitch, vw->vw_bell_duration); 1145 } 1146 1147 /* 1148 * Beep with user-provided frequency and duration as specified by a KDMKTONE 1149 * ioctl (compatible with Linux). The frequency is specified as a 8254 PIT 1150 * divisor for a 1.19MHz clock. 1151 * 1152 * See https://tldp.org/LDP/lpg/node83.html. 1153 */ 1154 static void 1155 vtterm_beep(struct terminal *tm, u_int param) 1156 { 1157 u_int freq; 1158 sbintime_t period; 1159 struct vt_window *vw = tm->tm_softc; 1160 struct vt_device *vd = vw->vw_device; 1161 1162 if ((param == 0) || ((param & 0xffff) == 0)) { 1163 vtterm_bell(tm); 1164 return; 1165 } 1166 1167 /* XXX period unit is supposed to be "timer ticks." */ 1168 period = ((param >> 16) & 0xffff) * SBT_1MS; 1169 freq = 1193182 / (param & 0xffff); 1170 1171 vtterm_devctl(vt_enable_bell, vd->vd_flags & VDF_QUIET_BELL, 1172 freq, period); 1173 1174 if (!vt_enable_bell) 1175 return; 1176 1177 sysbeep(freq, period); 1178 } 1179 1180 static void 1181 vtterm_cursor(struct terminal *tm, const term_pos_t *p) 1182 { 1183 struct vt_window *vw = tm->tm_softc; 1184 1185 vtbuf_cursor_position(&vw->vw_buf, p); 1186 } 1187 1188 static void 1189 vtterm_putchar(struct terminal *tm, const term_pos_t *p, term_char_t c) 1190 { 1191 struct vt_window *vw = tm->tm_softc; 1192 1193 vtbuf_putchar(&vw->vw_buf, p, c); 1194 } 1195 1196 static void 1197 vtterm_fill(struct terminal *tm, const term_rect_t *r, term_char_t c) 1198 { 1199 struct vt_window *vw = tm->tm_softc; 1200 1201 #ifndef SC_NO_CUTPASTE 1202 vtbuf_unmark_on_cross(&vw->vw_buf, r->tr_begin.tp_row, 1203 r->tr_end.tp_row); 1204 #endif 1205 vtbuf_fill(&vw->vw_buf, r, c); 1206 } 1207 1208 static void 1209 vtterm_copy(struct terminal *tm, const term_rect_t *r, 1210 const term_pos_t *p) 1211 { 1212 struct vt_window *vw = tm->tm_softc; 1213 1214 vtbuf_copy(&vw->vw_buf, r, p); 1215 } 1216 1217 static void 1218 vtterm_param(struct terminal *tm, int cmd, unsigned int arg) 1219 { 1220 struct vt_window *vw = tm->tm_softc; 1221 1222 switch (cmd) { 1223 case TP_SETLOCALCURSOR: 1224 /* 1225 * 0 means normal (usually block), 1 means hidden, and 1226 * 2 means blinking (always block) for compatibility with 1227 * syscons. We don't support any changes except hiding, 1228 * so must map 2 to 0. 1229 */ 1230 arg = (arg == 1) ? 0 : 1; 1231 /* FALLTHROUGH */ 1232 case TP_SHOWCURSOR: 1233 vtbuf_cursor_visibility(&vw->vw_buf, arg); 1234 vt_resume_flush_timer(vw, 0); 1235 break; 1236 case TP_MOUSE: 1237 vw->vw_mouse_level = arg; 1238 break; 1239 case TP_SETBELLPD: 1240 vw->vw_bell_pitch = TP_SETBELLPD_PITCH(arg); 1241 vw->vw_bell_duration = 1242 TICKS_2_MSEC(TP_SETBELLPD_DURATION(arg)) * SBT_1MS; 1243 break; 1244 } 1245 } 1246 1247 void 1248 vt_determine_colors(term_char_t c, int cursor, 1249 term_color_t *fg, term_color_t *bg) 1250 { 1251 term_color_t tmp; 1252 int invert; 1253 1254 invert = 0; 1255 1256 *fg = TCHAR_FGCOLOR(c); 1257 if (TCHAR_FORMAT(c) & TF_BOLD) 1258 *fg = TCOLOR_LIGHT(*fg); 1259 *bg = TCHAR_BGCOLOR(c); 1260 if (TCHAR_FORMAT(c) & TF_BLINK) 1261 *bg = TCOLOR_LIGHT(*bg); 1262 1263 if (TCHAR_FORMAT(c) & TF_REVERSE) 1264 invert ^= 1; 1265 if (cursor) 1266 invert ^= 1; 1267 1268 if (invert) { 1269 tmp = *fg; 1270 *fg = *bg; 1271 *bg = tmp; 1272 } 1273 } 1274 1275 #ifndef SC_NO_CUTPASTE 1276 int 1277 vt_is_cursor_in_area(const struct vt_device *vd, const term_rect_t *area) 1278 { 1279 unsigned int mx, my; 1280 1281 /* 1282 * We use the cursor position saved during the current refresh, 1283 * in case the cursor moved since. 1284 */ 1285 mx = vd->vd_mx_drawn + vd->vd_curwindow->vw_draw_area.tr_begin.tp_col; 1286 my = vd->vd_my_drawn + vd->vd_curwindow->vw_draw_area.tr_begin.tp_row; 1287 1288 if (mx >= area->tr_end.tp_col || 1289 mx + vd->vd_mcursor->width <= area->tr_begin.tp_col || 1290 my >= area->tr_end.tp_row || 1291 my + vd->vd_mcursor->height <= area->tr_begin.tp_row) 1292 return (0); 1293 return (1); 1294 } 1295 1296 static void 1297 vt_mark_mouse_position_as_dirty(struct vt_device *vd, int locked) 1298 { 1299 term_rect_t area; 1300 struct vt_window *vw; 1301 struct vt_font *vf; 1302 int x, y; 1303 1304 vw = vd->vd_curwindow; 1305 vf = vw->vw_font; 1306 1307 x = vd->vd_mx_drawn; 1308 y = vd->vd_my_drawn; 1309 1310 if (vf != NULL) { 1311 area.tr_begin.tp_col = x / vf->vf_width; 1312 area.tr_begin.tp_row = y / vf->vf_height; 1313 area.tr_end.tp_col = 1314 ((x + vd->vd_mcursor->width) / vf->vf_width) + 1; 1315 area.tr_end.tp_row = 1316 ((y + vd->vd_mcursor->height) / vf->vf_height) + 1; 1317 } else { 1318 /* 1319 * No font loaded (ie. vt_vga operating in textmode). 1320 * 1321 * FIXME: This fake area needs to be revisited once the 1322 * mouse cursor is supported in vt_vga's textmode. 1323 */ 1324 area.tr_begin.tp_col = x; 1325 area.tr_begin.tp_row = y; 1326 area.tr_end.tp_col = x + 2; 1327 area.tr_end.tp_row = y + 2; 1328 } 1329 1330 if (!locked) 1331 vtbuf_lock(&vw->vw_buf); 1332 if (vd->vd_driver->vd_invalidate_text) 1333 vd->vd_driver->vd_invalidate_text(vd, &area); 1334 vtbuf_dirty(&vw->vw_buf, &area); 1335 if (!locked) 1336 vtbuf_unlock(&vw->vw_buf); 1337 } 1338 #endif 1339 1340 static void 1341 vt_set_border(struct vt_device *vd, const term_rect_t *area, 1342 term_color_t c) 1343 { 1344 vd_drawrect_t *drawrect = vd->vd_driver->vd_drawrect; 1345 1346 if (drawrect == NULL) 1347 return; 1348 1349 /* Top bar */ 1350 if (area->tr_begin.tp_row > 0) 1351 drawrect(vd, 0, 0, vd->vd_width - 1, 1352 area->tr_begin.tp_row - 1, 1, c); 1353 1354 /* Left bar */ 1355 if (area->tr_begin.tp_col > 0) 1356 drawrect(vd, 0, area->tr_begin.tp_row, 1357 area->tr_begin.tp_col - 1, area->tr_end.tp_row - 1, 1, c); 1358 1359 /* Right bar */ 1360 if (area->tr_end.tp_col < vd->vd_width) 1361 drawrect(vd, area->tr_end.tp_col, area->tr_begin.tp_row, 1362 vd->vd_width - 1, area->tr_end.tp_row - 1, 1, c); 1363 1364 /* Bottom bar */ 1365 if (area->tr_end.tp_row < vd->vd_height) 1366 drawrect(vd, 0, area->tr_end.tp_row, vd->vd_width - 1, 1367 vd->vd_height - 1, 1, c); 1368 } 1369 1370 static void 1371 vt_flush_to_buffer(struct vt_device *vd, 1372 const struct vt_window *vw, const term_rect_t *area) 1373 { 1374 unsigned int col, row; 1375 term_char_t c; 1376 term_color_t fg, bg; 1377 size_t z; 1378 1379 for (row = area->tr_begin.tp_row; row < area->tr_end.tp_row; ++row) { 1380 for (col = area->tr_begin.tp_col; col < area->tr_end.tp_col; 1381 ++col) { 1382 z = row * PIXEL_WIDTH(VT_FB_MAX_WIDTH) + col; 1383 if (z >= PIXEL_HEIGHT(VT_FB_MAX_HEIGHT) * 1384 PIXEL_WIDTH(VT_FB_MAX_WIDTH)) 1385 continue; 1386 1387 c = VTBUF_GET_FIELD(&vw->vw_buf, row, col); 1388 vt_determine_colors(c, 1389 VTBUF_ISCURSOR(&vw->vw_buf, row, col), &fg, &bg); 1390 1391 if (vd->vd_drawn && (vd->vd_drawn[z] == c) && 1392 vd->vd_drawnfg && (vd->vd_drawnfg[z] == fg) && 1393 vd->vd_drawnbg && (vd->vd_drawnbg[z] == bg)) { 1394 vd->vd_pos_to_flush[z] = false; 1395 continue; 1396 } 1397 1398 vd->vd_pos_to_flush[z] = true; 1399 1400 if (vd->vd_drawn) 1401 vd->vd_drawn[z] = c; 1402 if (vd->vd_drawnfg) 1403 vd->vd_drawnfg[z] = fg; 1404 if (vd->vd_drawnbg) 1405 vd->vd_drawnbg[z] = bg; 1406 } 1407 } 1408 } 1409 1410 static void 1411 vt_bitblt_buffer(struct vt_device *vd, const struct vt_window *vw, 1412 const term_rect_t *area) 1413 { 1414 unsigned int col, row, x, y; 1415 struct vt_font *vf; 1416 term_char_t c; 1417 term_color_t fg, bg; 1418 const uint8_t *pattern; 1419 size_t z; 1420 1421 vf = vw->vw_font; 1422 1423 for (row = area->tr_begin.tp_row; row < area->tr_end.tp_row; ++row) { 1424 for (col = area->tr_begin.tp_col; col < area->tr_end.tp_col; 1425 ++col) { 1426 x = col * vf->vf_width + 1427 vw->vw_draw_area.tr_begin.tp_col; 1428 y = row * vf->vf_height + 1429 vw->vw_draw_area.tr_begin.tp_row; 1430 1431 z = row * PIXEL_WIDTH(VT_FB_MAX_WIDTH) + col; 1432 if (z >= PIXEL_HEIGHT(VT_FB_MAX_HEIGHT) * 1433 PIXEL_WIDTH(VT_FB_MAX_WIDTH)) 1434 continue; 1435 if (!vd->vd_pos_to_flush[z]) 1436 continue; 1437 1438 c = vd->vd_drawn[z]; 1439 fg = vd->vd_drawnfg[z]; 1440 bg = vd->vd_drawnbg[z]; 1441 1442 pattern = vtfont_lookup(vf, c); 1443 vd->vd_driver->vd_bitblt_bmp(vd, vw, 1444 pattern, NULL, vf->vf_width, vf->vf_height, 1445 x, y, fg, bg); 1446 } 1447 } 1448 1449 #ifndef SC_NO_CUTPASTE 1450 if (!vd->vd_mshown) 1451 return; 1452 1453 term_rect_t drawn_area; 1454 1455 drawn_area.tr_begin.tp_col = area->tr_begin.tp_col * vf->vf_width; 1456 drawn_area.tr_begin.tp_row = area->tr_begin.tp_row * vf->vf_height; 1457 drawn_area.tr_end.tp_col = area->tr_end.tp_col * vf->vf_width; 1458 drawn_area.tr_end.tp_row = area->tr_end.tp_row * vf->vf_height; 1459 1460 if (vt_is_cursor_in_area(vd, &drawn_area)) { 1461 vd->vd_driver->vd_bitblt_bmp(vd, vw, 1462 vd->vd_mcursor->map, vd->vd_mcursor->mask, 1463 vd->vd_mcursor->width, vd->vd_mcursor->height, 1464 vd->vd_mx_drawn + vw->vw_draw_area.tr_begin.tp_col, 1465 vd->vd_my_drawn + vw->vw_draw_area.tr_begin.tp_row, 1466 vd->vd_mcursor_fg, vd->vd_mcursor_bg); 1467 } 1468 #endif 1469 } 1470 1471 static void 1472 vt_draw_decorations(struct vt_device *vd) 1473 { 1474 struct vt_window *vw; 1475 const teken_attr_t *a; 1476 1477 vw = vd->vd_curwindow; 1478 1479 a = teken_get_curattr(&vw->vw_terminal->tm_emulator); 1480 vt_set_border(vd, &vw->vw_draw_area, a->ta_bgcolor); 1481 1482 if (vt_draw_logo_cpus) 1483 vtterm_draw_cpu_logos(vd); 1484 } 1485 1486 static int 1487 vt_flush(struct vt_device *vd) 1488 { 1489 struct vt_window *vw; 1490 struct vt_font *vf; 1491 term_rect_t tarea; 1492 #ifndef SC_NO_CUTPASTE 1493 int cursor_was_shown, cursor_moved; 1494 #endif 1495 bool needs_refresh; 1496 1497 if (inside_vt_flush && KERNEL_PANICKED()) 1498 return (0); 1499 1500 vw = vd->vd_curwindow; 1501 if (vw == NULL) 1502 return (0); 1503 1504 if (vd->vd_flags & VDF_SPLASH || vw->vw_flags & VWF_BUSY) 1505 return (0); 1506 1507 vf = vw->vw_font; 1508 if (((vd->vd_flags & VDF_TEXTMODE) == 0) && (vf == NULL)) 1509 return (0); 1510 1511 VT_FLUSH_LOCK(vd); 1512 1513 vtbuf_lock(&vw->vw_buf); 1514 inside_vt_flush = true; 1515 1516 #ifndef SC_NO_CUTPASTE 1517 cursor_was_shown = vd->vd_mshown; 1518 cursor_moved = (vd->vd_mx != vd->vd_mx_drawn || 1519 vd->vd_my != vd->vd_my_drawn); 1520 1521 /* Check if the cursor should be displayed or not. */ 1522 if ((vd->vd_flags & VDF_MOUSECURSOR) && /* Mouse support enabled. */ 1523 !(vw->vw_flags & VWF_MOUSE_HIDE) && /* Cursor displayed. */ 1524 !kdb_active && !KERNEL_PANICKED()) { /* DDB inactive. */ 1525 vd->vd_mshown = 1; 1526 } else { 1527 vd->vd_mshown = 0; 1528 } 1529 1530 /* 1531 * If the cursor changed display state or moved, we must mark 1532 * the old position as dirty, so that it's erased. 1533 */ 1534 if (cursor_was_shown != vd->vd_mshown || 1535 (vd->vd_mshown && cursor_moved)) 1536 vt_mark_mouse_position_as_dirty(vd, true); 1537 1538 /* 1539 * Save position of the mouse cursor. It's used by backends to 1540 * know where to draw the cursor and during the next refresh to 1541 * erase the previous position. 1542 */ 1543 vd->vd_mx_drawn = vd->vd_mx; 1544 vd->vd_my_drawn = vd->vd_my; 1545 1546 /* 1547 * If the cursor is displayed and has moved since last refresh, 1548 * mark the new position as dirty. 1549 */ 1550 if (vd->vd_mshown && cursor_moved) 1551 vt_mark_mouse_position_as_dirty(vd, true); 1552 #endif 1553 1554 vtbuf_undirty(&vw->vw_buf, &tarea); 1555 1556 /* Force a full redraw when the screen contents might be invalid. */ 1557 needs_refresh = false; 1558 if (vd->vd_flags & (VDF_INVALID | VDF_SUSPENDED)) { 1559 needs_refresh = true; 1560 vd->vd_flags &= ~VDF_INVALID; 1561 1562 vt_termrect(vd, vf, &tarea); 1563 if (vd->vd_driver->vd_invalidate_text) 1564 vd->vd_driver->vd_invalidate_text(vd, &tarea); 1565 } 1566 1567 if (tarea.tr_begin.tp_col < tarea.tr_end.tp_col) { 1568 if (vd->vd_driver->vd_bitblt_after_vtbuf_unlock) { 1569 /* 1570 * When `vd_bitblt_after_vtbuf_unlock` is set to true, 1571 * we first remember the characters to redraw. They are 1572 * already copied to the `vd_drawn` arrays. 1573 * 1574 * We then unlock vt_buf and proceed with the actual 1575 * drawing using the backend driver. 1576 */ 1577 vt_flush_to_buffer(vd, vw, &tarea); 1578 vtbuf_unlock(&vw->vw_buf); 1579 vt_bitblt_buffer(vd, vw, &tarea); 1580 1581 if (needs_refresh) 1582 vt_draw_decorations(vd); 1583 1584 /* 1585 * We can reset `inside_vt_flush` after unlocking vtbuf 1586 * here because we also hold vt_flush_lock in this code 1587 * path. 1588 */ 1589 inside_vt_flush = false; 1590 } else { 1591 /* 1592 * When `vd_bitblt_after_vtbuf_unlock` is false, we use 1593 * the backend's `vd_bitblt_text` callback directly. 1594 */ 1595 vd->vd_driver->vd_bitblt_text(vd, vw, &tarea); 1596 1597 if (needs_refresh) 1598 vt_draw_decorations(vd); 1599 1600 inside_vt_flush = false; 1601 vtbuf_unlock(&vw->vw_buf); 1602 } 1603 1604 VT_FLUSH_UNLOCK(vd); 1605 1606 return (1); 1607 } 1608 1609 inside_vt_flush = false; 1610 vtbuf_unlock(&vw->vw_buf); 1611 1612 VT_FLUSH_UNLOCK(vd); 1613 1614 return (0); 1615 } 1616 1617 static void 1618 vt_timer(void *arg) 1619 { 1620 struct vt_device *vd; 1621 int changed; 1622 1623 vd = arg; 1624 /* Update screen if required. */ 1625 changed = vt_flush(vd); 1626 1627 /* Schedule for next update. */ 1628 if (changed) 1629 vt_schedule_flush(vd, 0); 1630 else 1631 vd->vd_timer_armed = 0; 1632 } 1633 1634 static void 1635 vtterm_pre_input(struct terminal *tm) 1636 { 1637 struct vt_window *vw = tm->tm_softc; 1638 1639 if (inside_vt_flush && KERNEL_PANICKED()) 1640 return; 1641 1642 vtbuf_lock(&vw->vw_buf); 1643 } 1644 1645 static void 1646 vtterm_post_input(struct terminal *tm) 1647 { 1648 struct vt_window *vw = tm->tm_softc; 1649 1650 if (inside_vt_flush && KERNEL_PANICKED()) 1651 return; 1652 1653 vtbuf_unlock(&vw->vw_buf); 1654 vt_resume_flush_timer(vw, 0); 1655 } 1656 1657 static void 1658 vtterm_done(struct terminal *tm) 1659 { 1660 struct vt_window *vw = tm->tm_softc; 1661 struct vt_device *vd = vw->vw_device; 1662 1663 if (kdb_active || KERNEL_PANICKED()) { 1664 /* Switch to the debugger. */ 1665 if (vd->vd_curwindow != vw) { 1666 vd->vd_curwindow = vw; 1667 vd->vd_flags |= VDF_INVALID; 1668 if (vd->vd_driver->vd_postswitch) 1669 vd->vd_driver->vd_postswitch(vd); 1670 } 1671 vd->vd_flags &= ~VDF_SPLASH; 1672 vt_flush(vd); 1673 } else if (vt_slow_down > 0) { 1674 int i, j; 1675 for (i = 0; i < vt_slow_down; i++) { 1676 for (j = 0; j < 1000; j++) 1677 vt_flush(vd); 1678 } 1679 } else if (!(vd->vd_flags & VDF_ASYNC)) { 1680 vt_flush(vd); 1681 } 1682 } 1683 1684 #ifdef DEV_SPLASH 1685 static void 1686 vtterm_splash(struct vt_device *vd) 1687 { 1688 struct splash_info *si; 1689 uintptr_t image; 1690 vt_axis_t top, left; 1691 1692 if (KERNEL_PANICKED()) 1693 return; 1694 1695 if ((vd->vd_flags & VDF_TEXTMODE) != 0 || (boothowto & RB_MUTE) == 0) 1696 return; 1697 1698 si = MD_FETCH(preload_kmdp, rebooting == 1 ? MODINFOMD_SHTDWNSPLASH : 1699 MODINFOMD_SPLASH, struct splash_info *); 1700 if (si == NULL) { 1701 if (vd->vd_driver->vd_bitblt_bmp == NULL) 1702 return; 1703 } else if (vd->vd_driver->vd_bitblt_argb == NULL) 1704 return; 1705 1706 if (rebooting == 1) { 1707 if (vd->vd_driver->vd_blank == NULL) 1708 return; 1709 vd->vd_driver->vd_blank(vd, TC_BLACK); 1710 } 1711 1712 if (si == NULL) { 1713 top = (vd->vd_height - vt_logo_height) / 2; 1714 left = (vd->vd_width - vt_logo_width) / 2; 1715 vd->vd_driver->vd_bitblt_bmp(vd, 1716 vd->vd_curwindow, vt_logo_image, NULL, vt_logo_width, 1717 vt_logo_height, left, top, TC_WHITE, TC_BLACK); 1718 } else { 1719 if (si->si_depth != 4) 1720 return; 1721 image = (uintptr_t)si + sizeof(struct splash_info); 1722 image = roundup2(image, 8); 1723 top = (vd->vd_height - si->si_height) / 2; 1724 left = (vd->vd_width - si->si_width) / 2; 1725 vd->vd_driver->vd_bitblt_argb(vd, vd->vd_curwindow, 1726 (unsigned char *)image, si->si_width, si->si_height, 1727 left, top); 1728 } 1729 vd->vd_flags |= VDF_SPLASH; 1730 } 1731 #endif 1732 1733 static struct vt_font * 1734 parse_font_info_static(struct font_info *fi) 1735 { 1736 struct vt_font *vfp; 1737 uintptr_t ptr; 1738 uint32_t checksum; 1739 1740 if (fi == NULL) 1741 return (NULL); 1742 1743 ptr = (uintptr_t)fi; 1744 /* 1745 * Compute and verify checksum. The total sum of all the fields 1746 * must be 0. 1747 */ 1748 checksum = fi->fi_width; 1749 checksum += fi->fi_height; 1750 checksum += fi->fi_bitmap_size; 1751 for (unsigned i = 0; i < VFNT_MAPS; i++) 1752 checksum += fi->fi_map_count[i]; 1753 1754 if (checksum + fi->fi_checksum != 0) 1755 return (NULL); 1756 1757 ptr += sizeof(struct font_info); 1758 ptr = roundup2(ptr, 8); 1759 1760 vfp = &vt_font_loader; 1761 vfp->vf_height = fi->fi_height; 1762 vfp->vf_width = fi->fi_width; 1763 /* This is default font, set refcount 1 to disable removal. */ 1764 vfp->vf_refcount = 1; 1765 for (unsigned i = 0; i < VFNT_MAPS; i++) { 1766 if (fi->fi_map_count[i] == 0) 1767 continue; 1768 vfp->vf_map_count[i] = fi->fi_map_count[i]; 1769 vfp->vf_map[i] = (vfnt_map_t *)ptr; 1770 ptr += (fi->fi_map_count[i] * sizeof(vfnt_map_t)); 1771 ptr = roundup2(ptr, 8); 1772 } 1773 vfp->vf_bytes = (uint8_t *)ptr; 1774 return (vfp); 1775 } 1776 1777 /* 1778 * Set up default font with allocated data structures. 1779 * However, we can not set refcount here, because it is already set and 1780 * incremented in vtterm_cnprobe() to avoid being released by font load from 1781 * userland. 1782 */ 1783 static struct vt_font * 1784 parse_font_info(struct font_info *fi) 1785 { 1786 struct vt_font *vfp; 1787 uintptr_t ptr; 1788 uint32_t checksum; 1789 size_t size; 1790 1791 if (fi == NULL) 1792 return (NULL); 1793 1794 ptr = (uintptr_t)fi; 1795 /* 1796 * Compute and verify checksum. The total sum of all the fields 1797 * must be 0. 1798 */ 1799 checksum = fi->fi_width; 1800 checksum += fi->fi_height; 1801 checksum += fi->fi_bitmap_size; 1802 for (unsigned i = 0; i < VFNT_MAPS; i++) 1803 checksum += fi->fi_map_count[i]; 1804 1805 if (checksum + fi->fi_checksum != 0) 1806 return (NULL); 1807 1808 ptr += sizeof(struct font_info); 1809 ptr = roundup2(ptr, 8); 1810 1811 vfp = &vt_font_loader; 1812 vfp->vf_height = fi->fi_height; 1813 vfp->vf_width = fi->fi_width; 1814 for (unsigned i = 0; i < VFNT_MAPS; i++) { 1815 if (fi->fi_map_count[i] == 0) 1816 continue; 1817 vfp->vf_map_count[i] = fi->fi_map_count[i]; 1818 size = fi->fi_map_count[i] * sizeof(vfnt_map_t); 1819 vfp->vf_map[i] = malloc(size, M_VT, M_WAITOK | M_ZERO); 1820 bcopy((vfnt_map_t *)ptr, vfp->vf_map[i], size); 1821 ptr += size; 1822 ptr = roundup2(ptr, 8); 1823 } 1824 vfp->vf_bytes = malloc(fi->fi_bitmap_size, M_VT, M_WAITOK | M_ZERO); 1825 bcopy((uint8_t *)ptr, vfp->vf_bytes, fi->fi_bitmap_size); 1826 return (vfp); 1827 } 1828 1829 static void 1830 vt_init_font(void *arg) 1831 { 1832 struct font_info *fi; 1833 struct vt_font *font; 1834 1835 fi = MD_FETCH(preload_kmdp, MODINFOMD_FONT, struct font_info *); 1836 1837 font = parse_font_info(fi); 1838 if (font != NULL) 1839 vt_font_assigned = font; 1840 } 1841 1842 SYSINIT(vt_init_font, SI_SUB_KMEM, SI_ORDER_ANY, vt_init_font, &vt_consdev); 1843 1844 static void 1845 vt_init_font_static(void) 1846 { 1847 struct font_info *fi; 1848 struct vt_font *font; 1849 1850 fi = MD_FETCH(preload_kmdp, MODINFOMD_FONT, struct font_info *); 1851 1852 font = parse_font_info_static(fi); 1853 if (font != NULL) 1854 vt_font_assigned = font; 1855 } 1856 1857 #ifdef DEV_SPLASH 1858 static int 1859 vt_shutdown_splash(struct vt_window *vw) 1860 { 1861 vtterm_splash(vw->vw_device); 1862 return (0); 1863 } 1864 #endif 1865 1866 static void 1867 vtterm_cnprobe(struct terminal *tm, struct consdev *cp) 1868 { 1869 struct vt_driver *vtd, **vtdlist, *vtdbest = NULL; 1870 struct vt_window *vw = tm->tm_softc; 1871 struct vt_device *vd = vw->vw_device; 1872 struct winsize wsz; 1873 const term_attr_t *a; 1874 1875 if (!vty_enabled(VTY_VT)) 1876 return; 1877 1878 if (vd->vd_flags & VDF_INITIALIZED) 1879 /* Initialization already done. */ 1880 return; 1881 1882 SET_FOREACH(vtdlist, vt_drv_set) { 1883 vtd = *vtdlist; 1884 if (vtd->vd_probe == NULL) 1885 continue; 1886 if (vtd->vd_probe(vd) == CN_DEAD) 1887 continue; 1888 if ((vtdbest == NULL) || 1889 (vtd->vd_priority > vtdbest->vd_priority)) 1890 vtdbest = vtd; 1891 } 1892 if (vtdbest == NULL) { 1893 cp->cn_pri = CN_DEAD; 1894 vd->vd_flags |= VDF_DEAD; 1895 } else { 1896 vd->vd_driver = vtdbest; 1897 cp->cn_pri = vd->vd_driver->vd_init(vd); 1898 } 1899 1900 /* Check if driver's vt_init return CN_DEAD. */ 1901 if (cp->cn_pri == CN_DEAD) { 1902 vd->vd_flags |= VDF_DEAD; 1903 } 1904 1905 /* Initialize any early-boot keyboard drivers */ 1906 kbd_configure(KB_CONF_PROBE_ONLY); 1907 1908 vd->vd_unit = atomic_fetchadd_int(&vt_unit, 1); 1909 vd->vd_windows[VT_CONSWINDOW] = vw; 1910 sprintf(cp->cn_name, "ttyv%r", VT_UNIT(vw)); 1911 1912 vt_init_font_static(); 1913 1914 /* Attach default font if not in TEXTMODE. */ 1915 if ((vd->vd_flags & VDF_TEXTMODE) == 0) { 1916 vw->vw_font = vtfont_ref(vt_font_assigned); 1917 vt_compute_drawable_area(vw); 1918 } 1919 1920 /* 1921 * The original screen size was faked (_VTDEFW x _VTDEFH). Now 1922 * that we have the real viewable size, fix it in the static 1923 * buffer. 1924 */ 1925 if (vd->vd_width != 0 && vd->vd_height != 0) 1926 vt_termsize(vd, vw->vw_font, &vw->vw_buf.vb_scr_size); 1927 1928 /* We need to access terminal attributes from vtbuf */ 1929 vw->vw_buf.vb_terminal = tm; 1930 vtbuf_init_early(&vw->vw_buf); 1931 vt_winsize(vd, vw->vw_font, &wsz); 1932 a = teken_get_curattr(&tm->tm_emulator); 1933 terminal_set_winsize_blank(tm, &wsz, 1, a); 1934 1935 if (vtdbest != NULL) { 1936 #ifdef DEV_SPLASH 1937 if (!vt_splash_cpu) 1938 vtterm_splash(vd); 1939 #endif 1940 vd->vd_flags |= VDF_INITIALIZED; 1941 } 1942 } 1943 1944 static int 1945 vtterm_cngetc(struct terminal *tm) 1946 { 1947 struct vt_window *vw = tm->tm_softc; 1948 struct vt_device *vd = vw->vw_device; 1949 keyboard_t *kbd; 1950 u_int c; 1951 1952 if (vw->vw_kbdsq && *vw->vw_kbdsq) 1953 return (*vw->vw_kbdsq++); 1954 1955 /* Make sure the splash screen is not there. */ 1956 if (vd->vd_flags & VDF_SPLASH) { 1957 /* Remove splash */ 1958 vd->vd_flags &= ~VDF_SPLASH; 1959 /* Mark screen as invalid to force update */ 1960 vd->vd_flags |= VDF_INVALID; 1961 vt_flush(vd); 1962 } 1963 1964 /* Stripped down keyboard handler. */ 1965 if ((kbd = vd->vd_keyboard) == NULL) 1966 return (-1); 1967 1968 /* Force keyboard input mode to K_XLATE */ 1969 vw->vw_kbdmode = K_XLATE; 1970 vt_update_kbd_mode(vw, kbd); 1971 1972 /* Switch the keyboard to polling to make it work here. */ 1973 kbdd_poll(kbd, TRUE); 1974 c = kbdd_read_char(kbd, 0); 1975 kbdd_poll(kbd, FALSE); 1976 if (c & RELKEY) 1977 return (-1); 1978 1979 if (vw->vw_flags & VWF_SCROLL) { 1980 vt_scrollmode_kbdevent(vw, c, 1/* Console mode */); 1981 vt_flush(vd); 1982 return (-1); 1983 } 1984 1985 /* Stripped down handling of vt_kbdevent(), without locking, etc. */ 1986 if (c & SPCLKEY) { 1987 switch (c) { 1988 case SPCLKEY | SLK: 1989 vt_save_kbd_state(vw, kbd); 1990 if (vw->vw_kbdstate & SLKED) { 1991 /* Turn scrolling on. */ 1992 vw->vw_flags |= VWF_SCROLL; 1993 VTBUF_SLCK_ENABLE(&vw->vw_buf); 1994 } else { 1995 /* Turn scrolling off. */ 1996 vt_scroll(vw, 0, VHS_END); 1997 vw->vw_flags &= ~VWF_SCROLL; 1998 VTBUF_SLCK_DISABLE(&vw->vw_buf); 1999 } 2000 break; 2001 case SPCLKEY | BTAB: /* Back tab (usually, shift+tab). */ 2002 vw->vw_kbdsq = "\x1b[Z"; 2003 break; 2004 /* XXX: KDB can handle history. */ 2005 case SPCLKEY | FKEY | F(50): /* Arrow up. */ 2006 vw->vw_kbdsq = "\x1b[A"; 2007 break; 2008 case SPCLKEY | FKEY | F(58): /* Arrow down. */ 2009 vw->vw_kbdsq = "\x1b[B"; 2010 break; 2011 case SPCLKEY | FKEY | F(55): /* Arrow right. */ 2012 vw->vw_kbdsq = "\x1b[C"; 2013 break; 2014 case SPCLKEY | FKEY | F(53): /* Arrow left. */ 2015 vw->vw_kbdsq = "\x1b[D"; 2016 break; 2017 } 2018 2019 /* Force refresh to make scrollback work. */ 2020 vt_flush(vd); 2021 } else if (KEYFLAGS(c) == 0) { 2022 return (KEYCHAR(c)); 2023 } 2024 2025 if (vw->vw_kbdsq && *vw->vw_kbdsq) 2026 return (*vw->vw_kbdsq++); 2027 2028 return (-1); 2029 } 2030 2031 /* 2032 * These two do most of what we want to do in vtterm_cnungrab, but without 2033 * actually switching windows. This is necessary for, e.g., 2034 * vt_allocate_keyboard() to get the current keyboard into the state it needs to 2035 * be in without damaging the device's window state. 2036 * 2037 * Both return the current grab count, though it's only used in vtterm_cnungrab. 2038 */ 2039 static int 2040 vtterm_cngrab_noswitch(struct vt_device *vd, struct vt_window *vw) 2041 { 2042 keyboard_t *kbd; 2043 2044 if (vw->vw_grabbed++ > 0) 2045 return (vw->vw_grabbed); 2046 2047 if ((kbd = vd->vd_keyboard) == NULL) 2048 return (1); 2049 2050 /* 2051 * Make sure the keyboard is accessible even when the kbd device 2052 * driver is disabled. 2053 */ 2054 kbdd_enable(kbd); 2055 2056 /* We shall always use the keyboard in the XLATE mode here. */ 2057 vw->vw_prev_kbdmode = vw->vw_kbdmode; 2058 vw->vw_kbdmode = K_XLATE; 2059 vt_update_kbd_mode(vw, kbd); 2060 2061 kbdd_poll(kbd, TRUE); 2062 return (1); 2063 } 2064 2065 static int 2066 vtterm_cnungrab_noswitch(struct vt_device *vd, struct vt_window *vw) 2067 { 2068 keyboard_t *kbd; 2069 2070 if (--vw->vw_grabbed > 0) 2071 return (vw->vw_grabbed); 2072 2073 if ((kbd = vd->vd_keyboard) == NULL) 2074 return (0); 2075 2076 kbdd_poll(kbd, FALSE); 2077 2078 vw->vw_kbdmode = vw->vw_prev_kbdmode; 2079 vt_update_kbd_mode(vw, kbd); 2080 kbdd_disable(kbd); 2081 return (0); 2082 } 2083 2084 static void 2085 vtterm_cngrab(struct terminal *tm) 2086 { 2087 struct vt_device *vd; 2088 struct vt_window *vw; 2089 2090 vw = tm->tm_softc; 2091 vd = vw->vw_device; 2092 2093 /* To be restored after we ungrab. */ 2094 if (vd->vd_grabwindow == NULL) 2095 vd->vd_grabwindow = vd->vd_curwindow; 2096 2097 if (!cold) 2098 vt_window_switch(vw); 2099 2100 vtterm_cngrab_noswitch(vd, vw); 2101 } 2102 2103 static void 2104 vtterm_cnungrab(struct terminal *tm) 2105 { 2106 struct vt_device *vd; 2107 struct vt_window *vw, *grabwindow; 2108 2109 vw = tm->tm_softc; 2110 vd = vw->vw_device; 2111 2112 MPASS(vd->vd_grabwindow != NULL); 2113 if (vtterm_cnungrab_noswitch(vd, vw) != 0) 2114 return; 2115 2116 /* 2117 * We set `vd_grabwindow` to NULL before calling vt_window_switch() 2118 * because it allows the underlying vt(4) backend to distinguish a 2119 * "grab" from an "ungrab" of the console. 2120 * 2121 * This is used by `vt_drmfb` in drm-kmod to call either 2122 * fb_debug_enter() or fb_debug_leave() appropriately. 2123 */ 2124 grabwindow = vd->vd_grabwindow; 2125 vd->vd_grabwindow = NULL; 2126 2127 if (!cold) 2128 vt_window_switch(grabwindow); 2129 } 2130 2131 static void 2132 vtterm_opened(struct terminal *tm, int opened) 2133 { 2134 struct vt_window *vw = tm->tm_softc; 2135 struct vt_device *vd = vw->vw_device; 2136 2137 VT_LOCK(vd); 2138 vd->vd_flags &= ~VDF_SPLASH; 2139 if (opened) 2140 vw->vw_flags |= VWF_OPENED; 2141 else { 2142 vw->vw_flags &= ~VWF_OPENED; 2143 /* TODO: finish ACQ/REL */ 2144 } 2145 VT_UNLOCK(vd); 2146 } 2147 2148 static int 2149 vt_change_font(struct vt_window *vw, struct vt_font *vf) 2150 { 2151 struct vt_device *vd = vw->vw_device; 2152 struct terminal *tm = vw->vw_terminal; 2153 term_pos_t size; 2154 struct winsize wsz; 2155 2156 /* 2157 * Changing fonts. 2158 * 2159 * Changing fonts is a little tricky. We must prevent 2160 * simultaneous access to the device, so we must stop 2161 * the display timer and the terminal from accessing. 2162 * We need to switch fonts and grow our screen buffer. 2163 * 2164 * XXX: Right now the code uses terminal_mute() to 2165 * prevent data from reaching the console driver while 2166 * resizing the screen buffer. This isn't elegant... 2167 */ 2168 2169 VT_LOCK(vd); 2170 if (vw->vw_flags & VWF_BUSY) { 2171 /* Another process is changing the font. */ 2172 VT_UNLOCK(vd); 2173 return (EBUSY); 2174 } 2175 vw->vw_flags |= VWF_BUSY; 2176 VT_UNLOCK(vd); 2177 2178 vt_termsize(vd, vf, &size); 2179 vt_winsize(vd, vf, &wsz); 2180 2181 /* Grow the screen buffer and terminal. */ 2182 terminal_mute(tm, 1); 2183 vtbuf_grow(&vw->vw_buf, &size, vw->vw_buf.vb_history_size); 2184 terminal_set_winsize_blank(tm, &wsz, 0, NULL); 2185 terminal_set_cursor(tm, &vw->vw_buf.vb_cursor); 2186 terminal_mute(tm, 0); 2187 2188 /* Actually apply the font to the current window. */ 2189 VT_LOCK(vd); 2190 if (vw->vw_font != vf && vw->vw_font != NULL && vf != NULL) { 2191 /* 2192 * In case vt_change_font called to update size we don't need 2193 * to update font link. 2194 */ 2195 vtfont_unref(vw->vw_font); 2196 vw->vw_font = vtfont_ref(vf); 2197 } 2198 2199 /* 2200 * Compute the drawable area and move the mouse cursor inside 2201 * it, in case the new area is smaller than the previous one. 2202 */ 2203 vt_compute_drawable_area(vw); 2204 vd->vd_mx = min(vd->vd_mx, 2205 vw->vw_draw_area.tr_end.tp_col - 2206 vw->vw_draw_area.tr_begin.tp_col - 1); 2207 vd->vd_my = min(vd->vd_my, 2208 vw->vw_draw_area.tr_end.tp_row - 2209 vw->vw_draw_area.tr_begin.tp_row - 1); 2210 2211 /* Force a full redraw the next timer tick. */ 2212 if (vd->vd_curwindow == vw) { 2213 vd->vd_flags |= VDF_INVALID; 2214 vt_resume_flush_timer(vw, 0); 2215 } 2216 vw->vw_flags &= ~VWF_BUSY; 2217 VT_UNLOCK(vd); 2218 return (0); 2219 } 2220 2221 static int 2222 vt_proc_alive(struct vt_window *vw) 2223 { 2224 struct proc *p; 2225 2226 if (vw->vw_smode.mode != VT_PROCESS) 2227 return (FALSE); 2228 2229 if (vw->vw_proc) { 2230 if ((p = pfind(vw->vw_pid)) != NULL) 2231 PROC_UNLOCK(p); 2232 if (vw->vw_proc == p) 2233 return (TRUE); 2234 vw->vw_proc = NULL; 2235 vw->vw_smode.mode = VT_AUTO; 2236 DPRINTF(1, "vt controlling process %d died\n", vw->vw_pid); 2237 vw->vw_pid = 0; 2238 } 2239 return (FALSE); 2240 } 2241 2242 static int 2243 signal_vt_rel(struct vt_window *vw) 2244 { 2245 2246 if (vw->vw_smode.mode != VT_PROCESS) 2247 return (FALSE); 2248 if (vw->vw_proc == NULL || vt_proc_alive(vw) == FALSE) { 2249 vw->vw_proc = NULL; 2250 vw->vw_pid = 0; 2251 return (TRUE); 2252 } 2253 vw->vw_flags |= VWF_SWWAIT_REL; 2254 PROC_LOCK(vw->vw_proc); 2255 kern_psignal(vw->vw_proc, vw->vw_smode.relsig); 2256 PROC_UNLOCK(vw->vw_proc); 2257 DPRINTF(1, "sending relsig to %d\n", vw->vw_pid); 2258 return (TRUE); 2259 } 2260 2261 static int 2262 signal_vt_acq(struct vt_window *vw) 2263 { 2264 2265 if (vw->vw_smode.mode != VT_PROCESS) 2266 return (FALSE); 2267 if (vw == vw->vw_device->vd_windows[VT_CONSWINDOW]) 2268 cnavailable(vw->vw_terminal->consdev, FALSE); 2269 if (vw->vw_proc == NULL || vt_proc_alive(vw) == FALSE) { 2270 vw->vw_proc = NULL; 2271 vw->vw_pid = 0; 2272 return (TRUE); 2273 } 2274 vw->vw_flags |= VWF_SWWAIT_ACQ; 2275 PROC_LOCK(vw->vw_proc); 2276 kern_psignal(vw->vw_proc, vw->vw_smode.acqsig); 2277 PROC_UNLOCK(vw->vw_proc); 2278 DPRINTF(1, "sending acqsig to %d\n", vw->vw_pid); 2279 return (TRUE); 2280 } 2281 2282 static int 2283 finish_vt_rel(struct vt_window *vw, int release, int *s) 2284 { 2285 2286 if (vw->vw_flags & VWF_SWWAIT_REL) { 2287 vw->vw_flags &= ~VWF_SWWAIT_REL; 2288 if (release) { 2289 taskqueue_drain_timeout(taskqueue_thread, &vw->vw_timeout_task_dead); 2290 (void)vt_late_window_switch(vw->vw_switch_to); 2291 } 2292 return (0); 2293 } 2294 return (EINVAL); 2295 } 2296 2297 static int 2298 finish_vt_acq(struct vt_window *vw) 2299 { 2300 2301 if (vw->vw_flags & VWF_SWWAIT_ACQ) { 2302 vw->vw_flags &= ~VWF_SWWAIT_ACQ; 2303 return (0); 2304 } 2305 return (EINVAL); 2306 } 2307 2308 #ifndef SC_NO_CUTPASTE 2309 static void 2310 vt_mouse_terminput_button(struct vt_device *vd, int button) 2311 { 2312 struct vt_window *vw; 2313 struct vt_font *vf; 2314 char mouseb[6] = "\x1B[M"; 2315 int i, x, y; 2316 2317 vw = vd->vd_curwindow; 2318 vf = vw->vw_font; 2319 2320 /* Translate to char position. */ 2321 x = vd->vd_mx / vf->vf_width; 2322 y = vd->vd_my / vf->vf_height; 2323 /* Avoid overflow. */ 2324 x = MIN(x, 255 - '!'); 2325 y = MIN(y, 255 - '!'); 2326 2327 mouseb[3] = ' ' + button; 2328 mouseb[4] = '!' + x; 2329 mouseb[5] = '!' + y; 2330 2331 for (i = 0; i < sizeof(mouseb); i++) 2332 terminal_input_char(vw->vw_terminal, mouseb[i]); 2333 } 2334 2335 static void 2336 vt_mouse_terminput(struct vt_device *vd, int type, int x, int y, int event, 2337 int cnt) 2338 { 2339 2340 switch (type) { 2341 case MOUSE_BUTTON_EVENT: 2342 if (cnt > 0) { 2343 /* Mouse button pressed. */ 2344 if (event & MOUSE_BUTTON1DOWN) 2345 vt_mouse_terminput_button(vd, 0); 2346 if (event & MOUSE_BUTTON2DOWN) 2347 vt_mouse_terminput_button(vd, 1); 2348 if (event & MOUSE_BUTTON3DOWN) 2349 vt_mouse_terminput_button(vd, 2); 2350 } else { 2351 /* Mouse button released. */ 2352 vt_mouse_terminput_button(vd, 3); 2353 } 2354 break; 2355 #ifdef notyet 2356 case MOUSE_MOTION_EVENT: 2357 if (mouse->u.data.z < 0) { 2358 /* Scroll up. */ 2359 sc_mouse_input_button(vd, 64); 2360 } else if (mouse->u.data.z > 0) { 2361 /* Scroll down. */ 2362 sc_mouse_input_button(vd, 65); 2363 } 2364 break; 2365 #endif 2366 } 2367 } 2368 2369 static void 2370 vt_mouse_paste(void) 2371 { 2372 term_char_t *buf; 2373 int i, len; 2374 2375 len = VD_PASTEBUFLEN(main_vd); 2376 buf = VD_PASTEBUF(main_vd); 2377 len /= sizeof(term_char_t); 2378 for (i = 0; i < len; i++) { 2379 if (TCHAR_CHARACTER(buf[i]) == '\0') 2380 continue; 2381 terminal_input_char(main_vd->vd_curwindow->vw_terminal, 2382 buf[i]); 2383 } 2384 } 2385 2386 void 2387 vt_mouse_event(int type, int x, int y, int event, int cnt, int mlevel) 2388 { 2389 struct vt_device *vd; 2390 struct vt_window *vw; 2391 struct vt_font *vf; 2392 term_pos_t size; 2393 int len, mark; 2394 2395 vd = main_vd; 2396 vw = vd->vd_curwindow; 2397 vf = vw->vw_font; 2398 2399 if (vw->vw_flags & (VWF_MOUSE_HIDE | VWF_GRAPHICS)) 2400 /* 2401 * Either the mouse is disabled, or the window is in 2402 * "graphics mode". The graphics mode is usually set by 2403 * an X server, using the KDSETMODE ioctl. 2404 */ 2405 return; 2406 2407 if (vf == NULL) /* Text mode. */ 2408 return; 2409 2410 /* 2411 * TODO: add flag about pointer position changed, to not redraw chars 2412 * under mouse pointer when nothing changed. 2413 */ 2414 2415 if (vw->vw_mouse_level > 0) 2416 vt_mouse_terminput(vd, type, x, y, event, cnt); 2417 2418 switch (type) { 2419 case MOUSE_ACTION: 2420 case MOUSE_MOTION_EVENT: 2421 /* Movement */ 2422 x += vd->vd_mx; 2423 y += vd->vd_my; 2424 2425 vt_termsize(vd, vf, &size); 2426 2427 /* Apply limits. */ 2428 x = MAX(x, 0); 2429 y = MAX(y, 0); 2430 x = MIN(x, (size.tp_col * vf->vf_width) - 1); 2431 y = MIN(y, (size.tp_row * vf->vf_height) - 1); 2432 2433 vd->vd_mx = x; 2434 vd->vd_my = y; 2435 if (vd->vd_mstate & (MOUSE_BUTTON1DOWN | VT_MOUSE_EXTENDBUTTON)) 2436 vtbuf_set_mark(&vw->vw_buf, VTB_MARK_MOVE, 2437 vd->vd_mx / vf->vf_width, 2438 vd->vd_my / vf->vf_height); 2439 2440 vt_resume_flush_timer(vw, 0); 2441 return; /* Done */ 2442 case MOUSE_BUTTON_EVENT: 2443 /* Buttons */ 2444 break; 2445 default: 2446 return; /* Done */ 2447 } 2448 2449 switch (event) { 2450 case MOUSE_BUTTON1DOWN: 2451 switch (cnt % 4) { 2452 case 0: /* up */ 2453 mark = VTB_MARK_END; 2454 break; 2455 case 1: /* single click: start cut operation */ 2456 mark = VTB_MARK_START; 2457 break; 2458 case 2: /* double click: cut a word */ 2459 mark = VTB_MARK_WORD; 2460 break; 2461 default: /* triple click: cut a line */ 2462 mark = VTB_MARK_ROW; 2463 break; 2464 } 2465 break; 2466 case VT_MOUSE_PASTEBUTTON: 2467 switch (cnt) { 2468 case 0: /* up */ 2469 break; 2470 default: 2471 vt_mouse_paste(); 2472 /* clear paste buffer selection after paste */ 2473 vtbuf_unmark(&vw->vw_buf); 2474 break; 2475 } 2476 return; /* Done */ 2477 case VT_MOUSE_EXTENDBUTTON: 2478 switch (cnt) { 2479 case 0: /* up */ 2480 if (!(vd->vd_mstate & MOUSE_BUTTON1DOWN)) 2481 mark = VTB_MARK_EXTEND; 2482 else 2483 mark = VTB_MARK_NONE; 2484 break; 2485 default: 2486 mark = VTB_MARK_EXTEND; 2487 break; 2488 } 2489 break; 2490 default: 2491 return; /* Done */ 2492 } 2493 2494 /* Save buttons state. */ 2495 if (cnt > 0) 2496 vd->vd_mstate |= event; 2497 else 2498 vd->vd_mstate &= ~event; 2499 2500 if (vtbuf_set_mark(&vw->vw_buf, mark, vd->vd_mx / vf->vf_width, 2501 vd->vd_my / vf->vf_height) == 1) { 2502 /* 2503 * We have something marked to copy, so update pointer to 2504 * window with selection. 2505 */ 2506 vt_resume_flush_timer(vw, 0); 2507 2508 switch (mark) { 2509 case VTB_MARK_END: 2510 case VTB_MARK_WORD: 2511 case VTB_MARK_ROW: 2512 case VTB_MARK_EXTEND: 2513 break; 2514 default: 2515 /* Other types of mark do not require to copy data. */ 2516 return; 2517 } 2518 2519 /* Get current selection size in bytes. */ 2520 len = vtbuf_get_marked_len(&vw->vw_buf); 2521 if (len <= 0) 2522 return; 2523 2524 /* Reallocate buffer only if old one is too small. */ 2525 if (len > VD_PASTEBUFSZ(vd)) { 2526 VD_PASTEBUF(vd) = realloc(VD_PASTEBUF(vd), len, M_VT, 2527 M_WAITOK | M_ZERO); 2528 /* Update buffer size. */ 2529 VD_PASTEBUFSZ(vd) = len; 2530 } 2531 /* Request copy/paste buffer data, no more than `len' */ 2532 vtbuf_extract_marked(&vw->vw_buf, VD_PASTEBUF(vd), len, mark); 2533 2534 VD_PASTEBUFLEN(vd) = len; 2535 2536 /* XXX VD_PASTEBUF(vd) have to be freed on shutdown/unload. */ 2537 } 2538 } 2539 2540 void 2541 vt_mouse_state(int show) 2542 { 2543 struct vt_device *vd; 2544 struct vt_window *vw; 2545 2546 vd = main_vd; 2547 vw = vd->vd_curwindow; 2548 2549 switch (show) { 2550 case VT_MOUSE_HIDE: 2551 vw->vw_flags |= VWF_MOUSE_HIDE; 2552 break; 2553 case VT_MOUSE_SHOW: 2554 vw->vw_flags &= ~VWF_MOUSE_HIDE; 2555 break; 2556 } 2557 2558 /* Mark mouse position as dirty. */ 2559 vt_mark_mouse_position_as_dirty(vd, false); 2560 vt_resume_flush_timer(vw, 0); 2561 } 2562 #endif 2563 2564 static int 2565 vtterm_mmap(struct terminal *tm, vm_ooffset_t offset, vm_paddr_t * paddr, 2566 int nprot, vm_memattr_t *memattr) 2567 { 2568 struct vt_window *vw = tm->tm_softc; 2569 struct vt_device *vd = vw->vw_device; 2570 2571 if (vd->vd_driver->vd_fb_mmap) 2572 return (vd->vd_driver->vd_fb_mmap(vd, offset, paddr, nprot, 2573 memattr)); 2574 2575 return (ENXIO); 2576 } 2577 2578 static int 2579 vtterm_ioctl(struct terminal *tm, u_long cmd, caddr_t data, 2580 struct thread *td) 2581 { 2582 struct vt_window *vw = tm->tm_softc; 2583 struct vt_device *vd = vw->vw_device; 2584 keyboard_t *kbd; 2585 int error, i, s; 2586 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 2587 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 2588 int ival; 2589 2590 switch (cmd) { 2591 case _IO('v', 4): 2592 cmd = VT_RELDISP; 2593 break; 2594 case _IO('v', 5): 2595 cmd = VT_ACTIVATE; 2596 break; 2597 case _IO('v', 6): 2598 cmd = VT_WAITACTIVE; 2599 break; 2600 case _IO('K', 20): 2601 cmd = KDSKBSTATE; 2602 break; 2603 case _IO('K', 67): 2604 cmd = KDSETRAD; 2605 break; 2606 case _IO('K', 7): 2607 cmd = KDSKBMODE; 2608 break; 2609 case _IO('K', 8): 2610 cmd = KDMKTONE; 2611 break; 2612 case _IO('K', 10): 2613 cmd = KDSETMODE; 2614 break; 2615 case _IO('K', 13): 2616 cmd = KDSBORDER; 2617 break; 2618 case _IO('K', 63): 2619 cmd = KIOCSOUND; 2620 break; 2621 case _IO('K', 66): 2622 cmd = KDSETLED; 2623 break; 2624 case _IO('c', 104): 2625 cmd = CONS_SETWINORG; 2626 break; 2627 case _IO('c', 110): 2628 cmd = CONS_SETKBD; 2629 break; 2630 default: 2631 goto skip_thunk; 2632 } 2633 ival = IOCPARM_IVAL(data); 2634 data = (caddr_t)&ival; 2635 skip_thunk: 2636 #endif 2637 2638 switch (cmd) { 2639 case KDSETRAD: /* set keyboard repeat & delay rates (old) */ 2640 if (*(int *)data & ~0x7f) 2641 return (EINVAL); 2642 /* FALLTHROUGH */ 2643 case GIO_KEYMAP: 2644 case PIO_KEYMAP: 2645 case GIO_DEADKEYMAP: 2646 case PIO_DEADKEYMAP: 2647 #ifdef COMPAT_FREEBSD13 2648 case OGIO_DEADKEYMAP: 2649 case OPIO_DEADKEYMAP: 2650 #endif /* COMPAT_FREEBSD13 */ 2651 case GETFKEY: 2652 case SETFKEY: 2653 case KDGKBINFO: 2654 case KDGKBTYPE: 2655 case KDGETREPEAT: /* get keyboard repeat & delay rates */ 2656 case KDSETREPEAT: /* set keyboard repeat & delay rates (new) */ 2657 case KBADDKBD: /* add keyboard to mux */ 2658 case KBRELKBD: { /* release keyboard from mux */ 2659 error = 0; 2660 2661 mtx_lock(&Giant); 2662 if ((kbd = vd->vd_keyboard) != NULL) 2663 error = kbdd_ioctl(kbd, cmd, data); 2664 mtx_unlock(&Giant); 2665 if (error == ENOIOCTL) { 2666 if (cmd == KDGKBTYPE) { 2667 /* always return something? XXX */ 2668 *(int *)data = 0; 2669 } else { 2670 return (ENODEV); 2671 } 2672 } 2673 return (error); 2674 } 2675 case KDGKBSTATE: { /* get keyboard state (locks) */ 2676 error = 0; 2677 2678 if (vw == vd->vd_curwindow) { 2679 mtx_lock(&Giant); 2680 if ((kbd = vd->vd_keyboard) != NULL) 2681 error = vt_save_kbd_state(vw, kbd); 2682 mtx_unlock(&Giant); 2683 2684 if (error != 0) 2685 return (error); 2686 } 2687 2688 *(int *)data = vw->vw_kbdstate & LOCK_MASK; 2689 2690 return (error); 2691 } 2692 case KDSKBSTATE: { /* set keyboard state (locks) */ 2693 int state; 2694 2695 state = *(int *)data; 2696 if (state & ~LOCK_MASK) 2697 return (EINVAL); 2698 2699 vw->vw_kbdstate &= ~LOCK_MASK; 2700 vw->vw_kbdstate |= state; 2701 2702 error = 0; 2703 if (vw == vd->vd_curwindow) { 2704 mtx_lock(&Giant); 2705 if ((kbd = vd->vd_keyboard) != NULL) 2706 error = vt_update_kbd_state(vw, kbd); 2707 mtx_unlock(&Giant); 2708 } 2709 2710 return (error); 2711 } 2712 case KDGETLED: { /* get keyboard LED status */ 2713 error = 0; 2714 2715 if (vw == vd->vd_curwindow) { 2716 mtx_lock(&Giant); 2717 if ((kbd = vd->vd_keyboard) != NULL) 2718 error = vt_save_kbd_leds(vw, kbd); 2719 mtx_unlock(&Giant); 2720 2721 if (error != 0) 2722 return (error); 2723 } 2724 2725 *(int *)data = vw->vw_kbdstate & LED_MASK; 2726 2727 return (error); 2728 } 2729 case KDSETLED: { /* set keyboard LED status */ 2730 int leds; 2731 2732 leds = *(int *)data; 2733 if (leds & ~LED_MASK) 2734 return (EINVAL); 2735 2736 vw->vw_kbdstate &= ~LED_MASK; 2737 vw->vw_kbdstate |= leds; 2738 2739 error = 0; 2740 if (vw == vd->vd_curwindow) { 2741 mtx_lock(&Giant); 2742 if ((kbd = vd->vd_keyboard) != NULL) 2743 error = vt_update_kbd_leds(vw, kbd); 2744 mtx_unlock(&Giant); 2745 } 2746 2747 return (error); 2748 } 2749 case KDGETMODE: 2750 *(int *)data = (vw->vw_flags & VWF_GRAPHICS) ? 2751 KD_GRAPHICS : KD_TEXT; 2752 return (0); 2753 case KDGKBMODE: { 2754 error = 0; 2755 2756 if (vw == vd->vd_curwindow) { 2757 mtx_lock(&Giant); 2758 if ((kbd = vd->vd_keyboard) != NULL) 2759 error = vt_save_kbd_mode(vw, kbd); 2760 mtx_unlock(&Giant); 2761 2762 if (error != 0) 2763 return (error); 2764 } 2765 2766 *(int *)data = vw->vw_kbdmode; 2767 2768 return (error); 2769 } 2770 case KDSKBMODE: { 2771 int mode; 2772 2773 mode = *(int *)data; 2774 switch (mode) { 2775 case K_XLATE: 2776 case K_RAW: 2777 case K_CODE: 2778 vw->vw_kbdmode = mode; 2779 2780 error = 0; 2781 if (vw == vd->vd_curwindow) { 2782 mtx_lock(&Giant); 2783 if ((kbd = vd->vd_keyboard) != NULL) 2784 error = vt_update_kbd_mode(vw, kbd); 2785 mtx_unlock(&Giant); 2786 } 2787 2788 return (error); 2789 default: 2790 return (EINVAL); 2791 } 2792 } 2793 case FBIOGTYPE: 2794 case FBIO_GETWINORG: /* get frame buffer window origin */ 2795 case FBIO_GETDISPSTART: /* get display start address */ 2796 case FBIO_GETLINEWIDTH: /* get scan line width in bytes */ 2797 case FBIO_BLANK: /* blank display */ 2798 case FBIO_GETRGBOFFS: /* get RGB offsets */ 2799 if (vd->vd_driver->vd_fb_ioctl) 2800 return (vd->vd_driver->vd_fb_ioctl(vd, cmd, data, td)); 2801 break; 2802 case CONS_BLANKTIME: 2803 /* XXX */ 2804 return (0); 2805 case CONS_HISTORY: 2806 if (*(int *)data < 0 || 2807 *(int *)data > UINT_MAX / USHRT_MAX / sizeof(term_char_t)) 2808 return (EINVAL); 2809 if (*(int *)data != vw->vw_buf.vb_history_size) 2810 vtbuf_sethistory_size(&vw->vw_buf, *(int *)data); 2811 return (0); 2812 case CONS_CLRHIST: 2813 vtbuf_clearhistory(&vw->vw_buf); 2814 /* 2815 * Invalidate the entire visible window; it is not guaranteed 2816 * that this operation will be immediately followed by a scroll 2817 * event, so it would otherwise be possible for prior artifacts 2818 * to remain visible. 2819 */ 2820 VT_LOCK(vd); 2821 if (vw == vd->vd_curwindow) { 2822 vd->vd_flags |= VDF_INVALID; 2823 vt_resume_flush_timer(vw, 0); 2824 } 2825 VT_UNLOCK(vd); 2826 return (0); 2827 case CONS_GET: 2828 /* XXX */ 2829 *(int *)data = M_CG640x480; 2830 return (0); 2831 case CONS_BELLTYPE: /* set bell type sound */ 2832 if ((*(int *)data) & CONS_QUIET_BELL) 2833 vd->vd_flags |= VDF_QUIET_BELL; 2834 else 2835 vd->vd_flags &= ~VDF_QUIET_BELL; 2836 return (0); 2837 case CONS_GETINFO: { 2838 vid_info_t *vi = (vid_info_t *)data; 2839 if (vi->size != sizeof(struct vid_info)) 2840 return (EINVAL); 2841 2842 if (vw == vd->vd_curwindow) { 2843 mtx_lock(&Giant); 2844 if ((kbd = vd->vd_keyboard) != NULL) 2845 vt_save_kbd_state(vw, kbd); 2846 mtx_unlock(&Giant); 2847 } 2848 2849 vi->m_num = vd->vd_curwindow->vw_number + 1; 2850 vi->mk_keylock = vw->vw_kbdstate & LOCK_MASK; 2851 /* XXX: other fields! */ 2852 return (0); 2853 } 2854 case CONS_GETVERS: 2855 *(int *)data = 0x200; 2856 return (0); 2857 case CONS_MODEINFO: 2858 /* XXX */ 2859 return (0); 2860 case CONS_MOUSECTL: { 2861 mouse_info_t *mouse = (mouse_info_t*)data; 2862 2863 /* 2864 * All the commands except MOUSE_SHOW nd MOUSE_HIDE 2865 * should not be applied to individual TTYs, but only to 2866 * consolectl. 2867 */ 2868 switch (mouse->operation) { 2869 case MOUSE_HIDE: 2870 if (vd->vd_flags & VDF_MOUSECURSOR) { 2871 vd->vd_flags &= ~VDF_MOUSECURSOR; 2872 #ifndef SC_NO_CUTPASTE 2873 vt_mouse_state(VT_MOUSE_HIDE); 2874 #endif 2875 } 2876 return (0); 2877 case MOUSE_SHOW: 2878 if (!(vd->vd_flags & VDF_MOUSECURSOR)) { 2879 vd->vd_flags |= VDF_MOUSECURSOR; 2880 vd->vd_mx = vd->vd_width / 2; 2881 vd->vd_my = vd->vd_height / 2; 2882 #ifndef SC_NO_CUTPASTE 2883 vt_mouse_state(VT_MOUSE_SHOW); 2884 #endif 2885 } 2886 return (0); 2887 default: 2888 return (EINVAL); 2889 } 2890 } 2891 case PIO_VFONT: { 2892 struct vt_font *vf; 2893 2894 if (vd->vd_flags & VDF_TEXTMODE) 2895 return (ENOTSUP); 2896 2897 error = vtfont_load((void *)data, &vf); 2898 if (error != 0) 2899 return (error); 2900 2901 error = vt_change_font(vw, vf); 2902 vtfont_unref(vf); 2903 return (error); 2904 } 2905 case PIO_VFONT_DEFAULT: { 2906 /* Reset to default font. */ 2907 error = vt_change_font(vw, vt_font_assigned); 2908 return (error); 2909 } 2910 case GIO_SCRNMAP: { 2911 scrmap_t *sm = (scrmap_t *)data; 2912 2913 /* We don't have screen maps, so return a handcrafted one. */ 2914 for (i = 0; i < 256; i++) 2915 sm->scrmap[i] = i; 2916 return (0); 2917 } 2918 case KDSETMODE: 2919 /* 2920 * FIXME: This implementation is incomplete compared to 2921 * syscons. 2922 */ 2923 switch (*(int *)data) { 2924 case KD_TEXT: 2925 case KD_TEXT1: 2926 case KD_PIXEL: 2927 vw->vw_flags &= ~VWF_GRAPHICS; 2928 break; 2929 case KD_GRAPHICS: 2930 vw->vw_flags |= VWF_GRAPHICS; 2931 break; 2932 } 2933 return (0); 2934 case KDENABIO: /* allow io operations */ 2935 error = priv_check(td, PRIV_IO); 2936 if (error != 0) 2937 return (error); 2938 error = securelevel_gt(td->td_ucred, 0); 2939 if (error != 0) 2940 return (error); 2941 #if defined(__i386__) 2942 td->td_frame->tf_eflags |= PSL_IOPL; 2943 #elif defined(__amd64__) 2944 td->td_frame->tf_rflags |= PSL_IOPL; 2945 #endif 2946 return (0); 2947 case KDDISABIO: /* disallow io operations (default) */ 2948 #if defined(__i386__) 2949 td->td_frame->tf_eflags &= ~PSL_IOPL; 2950 #elif defined(__amd64__) 2951 td->td_frame->tf_rflags &= ~PSL_IOPL; 2952 #endif 2953 return (0); 2954 case KDMKTONE: /* sound the bell */ 2955 vtterm_beep(tm, *(u_int *)data); 2956 return (0); 2957 case KIOCSOUND: /* make tone (*data) hz */ 2958 /* TODO */ 2959 return (0); 2960 case CONS_SETKBD: /* set the new keyboard */ 2961 mtx_lock(&Giant); 2962 error = 0; 2963 if (vd->vd_keyboard == NULL || 2964 vd->vd_keyboard->kb_index != *(int *)data) { 2965 kbd = kbd_get_keyboard(*(int *)data); 2966 if (kbd == NULL) { 2967 mtx_unlock(&Giant); 2968 return (EINVAL); 2969 } 2970 i = kbd_allocate(kbd->kb_name, kbd->kb_unit, 2971 (void *)vd, vt_kbdevent, vd); 2972 if (i >= 0) { 2973 if ((kbd = vd->vd_keyboard) != NULL) { 2974 vt_save_kbd_state(vd->vd_curwindow, kbd); 2975 kbd_release(kbd, (void *)vd); 2976 } 2977 kbd = vd->vd_keyboard = kbd_get_keyboard(i); 2978 2979 vt_update_kbd_mode(vd->vd_curwindow, kbd); 2980 vt_update_kbd_state(vd->vd_curwindow, kbd); 2981 } else { 2982 error = EPERM; /* XXX */ 2983 } 2984 } 2985 mtx_unlock(&Giant); 2986 return (error); 2987 case CONS_RELKBD: /* release the current keyboard */ 2988 mtx_lock(&Giant); 2989 error = 0; 2990 if ((kbd = vd->vd_keyboard) != NULL) { 2991 vt_save_kbd_state(vd->vd_curwindow, kbd); 2992 error = kbd_release(kbd, (void *)vd); 2993 if (error == 0) { 2994 vd->vd_keyboard = NULL; 2995 } 2996 } 2997 mtx_unlock(&Giant); 2998 return (error); 2999 case VT_ACTIVATE: { 3000 int win; 3001 win = *(int *)data - 1; 3002 DPRINTF(5, "%s%d: VT_ACTIVATE ttyv%d ", SC_DRIVER_NAME, 3003 VT_UNIT(vw), win); 3004 if ((win >= VT_MAXWINDOWS) || (win < 0)) 3005 return (EINVAL); 3006 return (vt_proc_window_switch(vd->vd_windows[win])); 3007 } 3008 case VT_GETACTIVE: 3009 *(int *)data = vd->vd_curwindow->vw_number + 1; 3010 return (0); 3011 case VT_GETINDEX: 3012 *(int *)data = vw->vw_number + 1; 3013 return (0); 3014 case VT_LOCKSWITCH: 3015 /* TODO: Check current state, switching can be in progress. */ 3016 if ((*(int *)data) == 0x01) 3017 vw->vw_flags |= VWF_VTYLOCK; 3018 else if ((*(int *)data) == 0x02) 3019 vw->vw_flags &= ~VWF_VTYLOCK; 3020 else 3021 return (EINVAL); 3022 return (0); 3023 case VT_OPENQRY: 3024 VT_LOCK(vd); 3025 for (i = 0; i < VT_MAXWINDOWS; i++) { 3026 vw = vd->vd_windows[i]; 3027 if (vw == NULL) 3028 continue; 3029 if (!(vw->vw_flags & VWF_OPENED)) { 3030 *(int *)data = vw->vw_number + 1; 3031 VT_UNLOCK(vd); 3032 return (0); 3033 } 3034 } 3035 VT_UNLOCK(vd); 3036 return (EINVAL); 3037 case VT_WAITACTIVE: { 3038 unsigned int idx; 3039 3040 error = 0; 3041 3042 idx = *(unsigned int *)data; 3043 if (idx > VT_MAXWINDOWS) 3044 return (EINVAL); 3045 if (idx > 0) 3046 vw = vd->vd_windows[idx - 1]; 3047 3048 VT_LOCK(vd); 3049 while (vd->vd_curwindow != vw && error == 0) 3050 error = cv_wait_sig(&vd->vd_winswitch, &vd->vd_lock); 3051 VT_UNLOCK(vd); 3052 return (error); 3053 } 3054 case VT_SETMODE: { /* set screen switcher mode */ 3055 struct vt_mode *mode; 3056 struct proc *p1; 3057 3058 mode = (struct vt_mode *)data; 3059 DPRINTF(5, "%s%d: VT_SETMODE ", SC_DRIVER_NAME, VT_UNIT(vw)); 3060 if (vw->vw_smode.mode == VT_PROCESS) { 3061 p1 = pfind(vw->vw_pid); 3062 if (vw->vw_proc == p1 && vw->vw_proc != td->td_proc) { 3063 if (p1) 3064 PROC_UNLOCK(p1); 3065 DPRINTF(5, "error EPERM\n"); 3066 return (EPERM); 3067 } 3068 if (p1) 3069 PROC_UNLOCK(p1); 3070 } 3071 if (mode->mode == VT_AUTO) { 3072 vw->vw_smode.mode = VT_AUTO; 3073 vw->vw_proc = NULL; 3074 vw->vw_pid = 0; 3075 DPRINTF(5, "VT_AUTO, "); 3076 if (vw == vw->vw_device->vd_windows[VT_CONSWINDOW]) 3077 cnavailable(vw->vw_terminal->consdev, TRUE); 3078 /* were we in the middle of the vty switching process? */ 3079 if (finish_vt_rel(vw, TRUE, &s) == 0) 3080 DPRINTF(5, "reset WAIT_REL, "); 3081 if (finish_vt_acq(vw) == 0) 3082 DPRINTF(5, "reset WAIT_ACQ, "); 3083 return (0); 3084 } else if (mode->mode == VT_PROCESS) { 3085 if (!(_SIG_VALID(mode->relsig) && 3086 _SIG_VALID(mode->acqsig) && 3087 (mode->frsig == 0 || _SIG_VALID(mode->frsig)))) { 3088 DPRINTF(5, "error EINVAL\n"); 3089 return (EINVAL); 3090 } 3091 DPRINTF(5, "VT_PROCESS %d, ", td->td_proc->p_pid); 3092 bcopy(data, &vw->vw_smode, sizeof(struct vt_mode)); 3093 vw->vw_proc = td->td_proc; 3094 vw->vw_pid = vw->vw_proc->p_pid; 3095 if (vw == vw->vw_device->vd_windows[VT_CONSWINDOW]) 3096 cnavailable(vw->vw_terminal->consdev, FALSE); 3097 } else { 3098 DPRINTF(5, "VT_SETMODE failed, unknown mode %d\n", 3099 mode->mode); 3100 return (EINVAL); 3101 } 3102 DPRINTF(5, "\n"); 3103 return (0); 3104 } 3105 case VT_GETMODE: /* get screen switcher mode */ 3106 bcopy(&vw->vw_smode, data, sizeof(struct vt_mode)); 3107 return (0); 3108 3109 case VT_RELDISP: /* screen switcher ioctl */ 3110 /* 3111 * This must be the current vty which is in the VT_PROCESS 3112 * switching mode... 3113 */ 3114 if ((vw != vd->vd_curwindow) || (vw->vw_smode.mode != 3115 VT_PROCESS)) { 3116 return (EINVAL); 3117 } 3118 /* ...and this process is controlling it. */ 3119 if (vw->vw_proc != td->td_proc) { 3120 return (EPERM); 3121 } 3122 error = EINVAL; 3123 switch(*(int *)data) { 3124 case VT_FALSE: /* user refuses to release screen, abort */ 3125 if ((error = finish_vt_rel(vw, FALSE, &s)) == 0) 3126 DPRINTF(5, "%s%d: VT_RELDISP: VT_FALSE\n", 3127 SC_DRIVER_NAME, VT_UNIT(vw)); 3128 break; 3129 case VT_TRUE: /* user has released screen, go on */ 3130 /* finish_vt_rel(..., TRUE, ...) should not be locked */ 3131 if (vw->vw_flags & VWF_SWWAIT_REL) { 3132 if ((error = finish_vt_rel(vw, TRUE, &s)) == 0) 3133 DPRINTF(5, "%s%d: VT_RELDISP: VT_TRUE\n", 3134 SC_DRIVER_NAME, VT_UNIT(vw)); 3135 } else { 3136 error = EINVAL; 3137 } 3138 return (error); 3139 case VT_ACKACQ: /* acquire acknowledged, switch completed */ 3140 if ((error = finish_vt_acq(vw)) == 0) 3141 DPRINTF(5, "%s%d: VT_RELDISP: VT_ACKACQ\n", 3142 SC_DRIVER_NAME, VT_UNIT(vw)); 3143 break; 3144 default: 3145 break; 3146 } 3147 return (error); 3148 } 3149 3150 return (ENOIOCTL); 3151 } 3152 3153 static struct vt_window * 3154 vt_allocate_window(struct vt_device *vd, unsigned int window) 3155 { 3156 struct vt_window *vw; 3157 struct terminal *tm; 3158 term_pos_t size; 3159 struct winsize wsz; 3160 3161 vw = malloc(sizeof *vw, M_VT, M_WAITOK|M_ZERO); 3162 vw->vw_device = vd; 3163 vw->vw_number = window; 3164 vw->vw_kbdmode = K_XLATE; 3165 3166 if ((vd->vd_flags & VDF_TEXTMODE) == 0) { 3167 vw->vw_font = vtfont_ref(vt_font_assigned); 3168 vt_compute_drawable_area(vw); 3169 } 3170 3171 vt_termsize(vd, vw->vw_font, &size); 3172 vt_winsize(vd, vw->vw_font, &wsz); 3173 tm = vw->vw_terminal = terminal_alloc(&vt_termclass, vw); 3174 vw->vw_buf.vb_terminal = tm; /* must be set before vtbuf_init() */ 3175 vtbuf_init(&vw->vw_buf, &size); 3176 3177 terminal_set_winsize(tm, &wsz); 3178 vd->vd_windows[window] = vw; 3179 TIMEOUT_TASK_INIT(taskqueue_thread, &vw->vw_timeout_task_dead, 0, &vt_switch_timer, vw); 3180 3181 return (vw); 3182 } 3183 3184 void 3185 vt_upgrade(struct vt_device *vd) 3186 { 3187 struct vt_window *vw; 3188 unsigned int i; 3189 int register_handlers; 3190 3191 if (!vty_enabled(VTY_VT)) 3192 return; 3193 if (main_vd->vd_driver == NULL) 3194 return; 3195 3196 for (i = 0; i < VT_MAXWINDOWS; i++) { 3197 vw = vd->vd_windows[i]; 3198 if (vw == NULL) { 3199 /* New window. */ 3200 vw = vt_allocate_window(vd, i); 3201 } 3202 if (!(vw->vw_flags & VWF_READY)) { 3203 TIMEOUT_TASK_INIT(taskqueue_thread, &vw->vw_timeout_task_dead, 0, &vt_switch_timer, vw); 3204 terminal_maketty(vw->vw_terminal, "v%r", VT_UNIT(vw)); 3205 vw->vw_flags |= VWF_READY; 3206 if (vw->vw_flags & VWF_CONSOLE) { 3207 /* For existing console window. */ 3208 EVENTHANDLER_REGISTER(shutdown_pre_sync, 3209 vt_window_switch, vw, SHUTDOWN_PRI_DEFAULT); 3210 #ifdef DEV_SPLASH 3211 EVENTHANDLER_REGISTER(shutdown_pre_sync, 3212 vt_shutdown_splash, vw, SHUTDOWN_PRI_DEFAULT + 1); 3213 #endif 3214 } 3215 } 3216 } 3217 VT_LOCK(vd); 3218 if (vd->vd_curwindow == NULL) 3219 vd->vd_curwindow = vd->vd_windows[VT_CONSWINDOW]; 3220 3221 register_handlers = 0; 3222 if (!(vd->vd_flags & VDF_ASYNC)) { 3223 /* Attach keyboard. */ 3224 vt_allocate_keyboard(vd); 3225 3226 /* Init 25 Hz timer. */ 3227 callout_init_mtx(&vd->vd_timer, &vd->vd_lock, 0); 3228 3229 /* 3230 * Start timer when everything ready. 3231 * Note that the operations here are purposefully ordered. 3232 * We need to ensure vd_timer_armed is non-zero before we set 3233 * the VDF_ASYNC flag. That prevents this function from 3234 * racing with vt_resume_flush_timer() to update the 3235 * callout structure. 3236 */ 3237 atomic_add_acq_int(&vd->vd_timer_armed, 1); 3238 vd->vd_flags |= VDF_ASYNC; 3239 callout_reset(&vd->vd_timer, hz / VT_TIMERFREQ, vt_timer, vd); 3240 register_handlers = 1; 3241 } 3242 3243 VT_UNLOCK(vd); 3244 3245 /* Refill settings with new sizes. */ 3246 vt_resize(vd); 3247 3248 if (register_handlers) { 3249 /* Register suspend/resume handlers. */ 3250 EVENTHANDLER_REGISTER(power_suspend_early, vt_suspend_handler, 3251 vd, EVENTHANDLER_PRI_ANY); 3252 EVENTHANDLER_REGISTER(power_resume, vt_resume_handler, vd, 3253 EVENTHANDLER_PRI_ANY); 3254 } 3255 } 3256 3257 static void 3258 vt_resize(struct vt_device *vd) 3259 { 3260 struct vt_window *vw; 3261 int i; 3262 3263 for (i = 0; i < VT_MAXWINDOWS; i++) { 3264 vw = vd->vd_windows[i]; 3265 VT_LOCK(vd); 3266 /* Assign default font to window, if not textmode. */ 3267 if (!(vd->vd_flags & VDF_TEXTMODE) && vw->vw_font == NULL) 3268 vw->vw_font = vtfont_ref(vt_font_assigned); 3269 VT_UNLOCK(vd); 3270 3271 /* Resize terminal windows */ 3272 while (vt_change_font(vw, vw->vw_font) == EBUSY) { 3273 DPRINTF(100, "%s: vt_change_font() is busy, " 3274 "window %d\n", __func__, i); 3275 } 3276 } 3277 } 3278 3279 static void 3280 vt_replace_backend(const struct vt_driver *drv, void *softc) 3281 { 3282 struct vt_device *vd; 3283 3284 vd = main_vd; 3285 3286 if (vd->vd_flags & VDF_ASYNC) { 3287 /* Stop vt_flush periodic task. */ 3288 VT_LOCK(vd); 3289 vt_suspend_flush_timer(vd); 3290 VT_UNLOCK(vd); 3291 /* 3292 * Mute current terminal until we done. vt_change_font (called 3293 * from vt_resize) will unmute it. 3294 */ 3295 terminal_mute(vd->vd_curwindow->vw_terminal, 1); 3296 } 3297 3298 /* 3299 * Reset VDF_TEXTMODE flag, driver who require that flag (vt_vga) will 3300 * set it. 3301 */ 3302 VT_LOCK(vd); 3303 vd->vd_flags &= ~VDF_TEXTMODE; 3304 3305 if (drv != NULL) { 3306 /* 3307 * We want to upgrade from the current driver to the 3308 * given driver. 3309 */ 3310 3311 vd->vd_prev_driver = vd->vd_driver; 3312 vd->vd_prev_softc = vd->vd_softc; 3313 vd->vd_driver = drv; 3314 vd->vd_softc = softc; 3315 3316 vd->vd_driver->vd_init(vd); 3317 } else if (vd->vd_prev_driver != NULL && vd->vd_prev_softc != NULL) { 3318 /* 3319 * No driver given: we want to downgrade to the previous 3320 * driver. 3321 */ 3322 const struct vt_driver *old_drv; 3323 void *old_softc; 3324 3325 old_drv = vd->vd_driver; 3326 old_softc = vd->vd_softc; 3327 3328 vd->vd_driver = vd->vd_prev_driver; 3329 vd->vd_softc = vd->vd_prev_softc; 3330 vd->vd_prev_driver = NULL; 3331 vd->vd_prev_softc = NULL; 3332 3333 vd->vd_flags |= VDF_DOWNGRADE; 3334 3335 vd->vd_driver->vd_init(vd); 3336 3337 if (old_drv->vd_fini) 3338 old_drv->vd_fini(vd, old_softc); 3339 3340 vd->vd_flags &= ~VDF_DOWNGRADE; 3341 } 3342 3343 VT_UNLOCK(vd); 3344 3345 /* Update windows sizes and initialize last items. */ 3346 vt_upgrade(vd); 3347 3348 /* 3349 * Give a chance to the new backend to run the post-switch code, for 3350 * instance to refresh the screen. 3351 */ 3352 if (vd->vd_driver->vd_postswitch) 3353 vd->vd_driver->vd_postswitch(vd); 3354 3355 #ifdef DEV_SPLASH 3356 if (vd->vd_flags & VDF_SPLASH) 3357 vtterm_splash(vd); 3358 #endif 3359 3360 if (vd->vd_flags & VDF_ASYNC) { 3361 /* Allow to put chars now. */ 3362 terminal_mute(vd->vd_curwindow->vw_terminal, 0); 3363 /* Rerun timer for screen updates. */ 3364 vt_resume_flush_timer(vd->vd_curwindow, 0); 3365 } 3366 3367 /* 3368 * Register as console. If it already registered, cnadd() will ignore 3369 * it. 3370 */ 3371 termcn_cnregister(vd->vd_windows[VT_CONSWINDOW]->vw_terminal); 3372 } 3373 3374 static void 3375 vt_suspend_handler(void *priv, enum power_stype stype) 3376 { 3377 struct vt_device *vd; 3378 3379 vd = priv; 3380 vd->vd_flags |= VDF_SUSPENDED; 3381 if (vd->vd_driver != NULL && vd->vd_driver->vd_suspend != NULL) 3382 vd->vd_driver->vd_suspend(vd); 3383 } 3384 3385 static void 3386 vt_resume_handler(void *priv, enum power_stype stype) 3387 { 3388 struct vt_device *vd; 3389 3390 vd = priv; 3391 if (vd->vd_driver != NULL && vd->vd_driver->vd_resume != NULL) 3392 vd->vd_driver->vd_resume(vd); 3393 vd->vd_flags &= ~VDF_SUSPENDED; 3394 } 3395 3396 int 3397 vt_allocate(const struct vt_driver *drv, void *softc) 3398 { 3399 3400 if (!vty_enabled(VTY_VT)) 3401 return (EINVAL); 3402 3403 if (main_vd->vd_driver == NULL) { 3404 main_vd->vd_driver = drv; 3405 printf("VT: initialize with new VT driver \"%s\".\n", 3406 drv->vd_name); 3407 } else { 3408 /* 3409 * Check if have rights to replace current driver. For example: 3410 * it is bad idea to replace KMS driver with generic VGA one. 3411 */ 3412 if (drv->vd_priority <= main_vd->vd_driver->vd_priority) { 3413 printf("VT: Driver priority %d too low. Current %d\n ", 3414 drv->vd_priority, main_vd->vd_driver->vd_priority); 3415 return (EEXIST); 3416 } 3417 printf("VT: Replacing driver \"%s\" with new \"%s\".\n", 3418 main_vd->vd_driver->vd_name, drv->vd_name); 3419 } 3420 3421 vt_replace_backend(drv, softc); 3422 3423 return (0); 3424 } 3425 3426 int 3427 vt_deallocate(const struct vt_driver *drv, void *softc) 3428 { 3429 3430 if (!vty_enabled(VTY_VT)) 3431 return (EINVAL); 3432 3433 if (main_vd->vd_prev_driver == NULL || 3434 main_vd->vd_driver != drv || 3435 main_vd->vd_softc != softc) 3436 return (EPERM); 3437 3438 printf("VT: Switching back from \"%s\" to \"%s\".\n", 3439 main_vd->vd_driver->vd_name, main_vd->vd_prev_driver->vd_name); 3440 3441 vt_replace_backend(NULL, NULL); 3442 3443 return (0); 3444 } 3445 3446 void 3447 vt_suspend(struct vt_device *vd) 3448 { 3449 int error; 3450 3451 if (vt_suspendswitch == 0) 3452 return; 3453 /* Save current window. */ 3454 vd->vd_savedwindow = vd->vd_curwindow; 3455 /* Ask holding process to free window and switch to console window */ 3456 vt_proc_window_switch(vd->vd_windows[VT_CONSWINDOW]); 3457 3458 /* Wait for the window switch to complete. */ 3459 error = 0; 3460 VT_LOCK(vd); 3461 while (vd->vd_curwindow != vd->vd_windows[VT_CONSWINDOW] && error == 0) 3462 error = cv_wait_sig(&vd->vd_winswitch, &vd->vd_lock); 3463 VT_UNLOCK(vd); 3464 } 3465 3466 void 3467 vt_resume(struct vt_device *vd) 3468 { 3469 3470 if (vt_suspendswitch == 0) 3471 return; 3472 /* Switch back to saved window, if any */ 3473 vt_proc_window_switch(vd->vd_savedwindow); 3474 vd->vd_savedwindow = NULL; 3475 } 3476