1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2009, 2013 The FreeBSD Foundation 5 * 6 * This software was developed by Ed Schouten under sponsorship from the 7 * FreeBSD Foundation. 8 * 9 * Portions of this software were developed by Oleksandr Rybalko 10 * under sponsorship from the FreeBSD Foundation. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #include <sys/param.h> 35 #include <sys/consio.h> 36 #include <sys/devctl.h> 37 #include <sys/eventhandler.h> 38 #include <sys/fbio.h> 39 #include <sys/font.h> 40 #include <sys/kbio.h> 41 #include <sys/kdb.h> 42 #include <sys/kernel.h> 43 #include <sys/linker.h> 44 #include <sys/lock.h> 45 #include <sys/malloc.h> 46 #include <sys/mutex.h> 47 #include <sys/power.h> 48 #include <sys/priv.h> 49 #include <sys/proc.h> 50 #include <sys/random.h> 51 #include <sys/reboot.h> 52 #include <sys/sbuf.h> 53 #include <sys/systm.h> 54 #include <sys/terminal.h> 55 56 #include <dev/kbd/kbdreg.h> 57 #include <dev/vt/vt.h> 58 59 #if defined(__i386__) || defined(__amd64__) 60 #include <machine/psl.h> 61 #include <machine/frame.h> 62 #endif 63 64 static int vtterm_cngrab_noswitch(struct vt_device *, struct vt_window *); 65 static int vtterm_cnungrab_noswitch(struct vt_device *, struct vt_window *); 66 67 static tc_bell_t vtterm_bell; 68 static tc_cursor_t vtterm_cursor; 69 static tc_putchar_t vtterm_putchar; 70 static tc_fill_t vtterm_fill; 71 static tc_copy_t vtterm_copy; 72 static tc_pre_input_t vtterm_pre_input; 73 static tc_post_input_t vtterm_post_input; 74 static tc_param_t vtterm_param; 75 static tc_done_t vtterm_done; 76 77 static tc_cnprobe_t vtterm_cnprobe; 78 static tc_cngetc_t vtterm_cngetc; 79 80 static tc_cngrab_t vtterm_cngrab; 81 static tc_cnungrab_t vtterm_cnungrab; 82 83 static tc_opened_t vtterm_opened; 84 static tc_ioctl_t vtterm_ioctl; 85 static tc_mmap_t vtterm_mmap; 86 87 static const struct terminal_class vt_termclass = { 88 .tc_bell = vtterm_bell, 89 .tc_cursor = vtterm_cursor, 90 .tc_putchar = vtterm_putchar, 91 .tc_fill = vtterm_fill, 92 .tc_copy = vtterm_copy, 93 .tc_pre_input = vtterm_pre_input, 94 .tc_post_input = vtterm_post_input, 95 .tc_param = vtterm_param, 96 .tc_done = vtterm_done, 97 98 .tc_cnprobe = vtterm_cnprobe, 99 .tc_cngetc = vtterm_cngetc, 100 101 .tc_cngrab = vtterm_cngrab, 102 .tc_cnungrab = vtterm_cnungrab, 103 104 .tc_opened = vtterm_opened, 105 .tc_ioctl = vtterm_ioctl, 106 .tc_mmap = vtterm_mmap, 107 }; 108 109 /* 110 * Use a constant timer of 25 Hz to redraw the screen. 111 * 112 * XXX: In theory we should only fire up the timer when there is really 113 * activity. Unfortunately we cannot always start timers. We really 114 * don't want to process kernel messages synchronously, because it 115 * really slows down the system. 116 */ 117 #define VT_TIMERFREQ 25 118 119 /* Bell pitch/duration. */ 120 #define VT_BELLDURATION (SBT_1S / 20) 121 #define VT_BELLPITCH (1193182 / 800) /* Approx 1491Hz */ 122 123 #define VT_UNIT(vw) ((vw)->vw_device->vd_unit * VT_MAXWINDOWS + \ 124 (vw)->vw_number) 125 126 static SYSCTL_NODE(_kern, OID_AUTO, vt, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, 127 "vt(9) parameters"); 128 static VT_SYSCTL_INT(enable_altgr, 1, "Enable AltGr key (Do not assume R.Alt as Alt)"); 129 static VT_SYSCTL_INT(enable_bell, 0, "Enable bell"); 130 static VT_SYSCTL_INT(debug, 0, "vt(9) debug level"); 131 static VT_SYSCTL_INT(deadtimer, 15, "Time to wait busy process in VT_PROCESS mode"); 132 static VT_SYSCTL_INT(suspendswitch, 1, "Switch to VT0 before suspend"); 133 134 /* Allow to disable some keyboard combinations. */ 135 static VT_SYSCTL_INT(kbd_halt, 1, "Enable halt keyboard combination. " 136 "See kbdmap(5) to configure."); 137 static VT_SYSCTL_INT(kbd_poweroff, 1, "Enable Power Off keyboard combination. " 138 "See kbdmap(5) to configure."); 139 static VT_SYSCTL_INT(kbd_reboot, 1, "Enable reboot keyboard combination. " 140 "See kbdmap(5) to configure (typically Ctrl-Alt-Delete)."); 141 static VT_SYSCTL_INT(kbd_debug, 1, "Enable key combination to enter debugger. " 142 "See kbdmap(5) to configure (typically Ctrl-Alt-Esc)."); 143 static VT_SYSCTL_INT(kbd_panic, 0, "Enable request to panic. " 144 "See kbdmap(5) to configure."); 145 146 /* Used internally, not a tunable. */ 147 int vt_draw_logo_cpus; 148 VT_SYSCTL_INT(splash_cpu, 0, "Show logo CPUs during boot"); 149 VT_SYSCTL_INT(splash_ncpu, 0, "Override number of logos displayed " 150 "(0 = do not override)"); 151 VT_SYSCTL_INT(splash_cpu_style, 2, "Draw logo style " 152 "(0 = Alternate beastie, 1 = Beastie, 2 = Orb)"); 153 VT_SYSCTL_INT(splash_cpu_duration, 10, "Hide logos after (seconds)"); 154 155 static unsigned int vt_unit = 0; 156 static MALLOC_DEFINE(M_VT, "vt", "vt device"); 157 struct vt_device *main_vd = &vt_consdev; 158 159 /* Boot logo. */ 160 extern unsigned int vt_logo_width; 161 extern unsigned int vt_logo_height; 162 extern unsigned int vt_logo_depth; 163 extern unsigned char vt_logo_image[]; 164 #ifndef DEV_SPLASH 165 #define vtterm_draw_cpu_logos(...) do {} while (0) 166 const unsigned int vt_logo_sprite_height; 167 #endif 168 169 /* 170 * Console font. vt_font_loader will be filled with font data passed 171 * by loader. If there is no font passed by boot loader, we use built in 172 * default. 173 */ 174 extern struct vt_font vt_font_default; 175 static struct vt_font vt_font_loader; 176 static struct vt_font *vt_font_assigned = &vt_font_default; 177 178 #ifndef SC_NO_CUTPASTE 179 extern struct vt_mouse_cursor vt_default_mouse_pointer; 180 #endif 181 182 static int signal_vt_rel(struct vt_window *); 183 static int signal_vt_acq(struct vt_window *); 184 static int finish_vt_rel(struct vt_window *, int, int *); 185 static int finish_vt_acq(struct vt_window *); 186 static int vt_window_switch(struct vt_window *); 187 static int vt_late_window_switch(struct vt_window *); 188 static int vt_proc_alive(struct vt_window *); 189 static void vt_resize(struct vt_device *); 190 static void vt_update_static(void *); 191 #ifndef SC_NO_CUTPASTE 192 static void vt_mouse_paste(void); 193 #endif 194 static void vt_suspend_handler(void *priv); 195 static void vt_resume_handler(void *priv); 196 197 SET_DECLARE(vt_drv_set, struct vt_driver); 198 199 #define _VTDEFH MAX(100, PIXEL_HEIGHT(VT_FB_MAX_HEIGHT)) 200 #define _VTDEFW MAX(200, PIXEL_WIDTH(VT_FB_MAX_WIDTH)) 201 202 static struct terminal vt_consterm; 203 static struct vt_window vt_conswindow; 204 static term_char_t vt_consdrawn[PIXEL_HEIGHT(VT_FB_MAX_HEIGHT) * PIXEL_WIDTH(VT_FB_MAX_WIDTH)]; 205 static term_color_t vt_consdrawnfg[PIXEL_HEIGHT(VT_FB_MAX_HEIGHT) * PIXEL_WIDTH(VT_FB_MAX_WIDTH)]; 206 static term_color_t vt_consdrawnbg[PIXEL_HEIGHT(VT_FB_MAX_HEIGHT) * PIXEL_WIDTH(VT_FB_MAX_WIDTH)]; 207 static bool vt_cons_pos_to_flush[PIXEL_HEIGHT(VT_FB_MAX_HEIGHT) * PIXEL_WIDTH(VT_FB_MAX_WIDTH)]; 208 struct vt_device vt_consdev = { 209 .vd_driver = NULL, 210 .vd_softc = NULL, 211 .vd_prev_driver = NULL, 212 .vd_prev_softc = NULL, 213 .vd_flags = VDF_INVALID, 214 .vd_windows = { [VT_CONSWINDOW] = &vt_conswindow, }, 215 .vd_curwindow = &vt_conswindow, 216 .vd_kbstate = 0, 217 218 #ifndef SC_NO_CUTPASTE 219 .vd_pastebuf = { 220 .vpb_buf = NULL, 221 .vpb_bufsz = 0, 222 .vpb_len = 0 223 }, 224 .vd_mcursor = &vt_default_mouse_pointer, 225 .vd_mcursor_fg = TC_WHITE, 226 .vd_mcursor_bg = TC_BLACK, 227 #endif 228 229 .vd_drawn = vt_consdrawn, 230 .vd_drawnfg = vt_consdrawnfg, 231 .vd_drawnbg = vt_consdrawnbg, 232 233 .vd_pos_to_flush = vt_cons_pos_to_flush, 234 }; 235 static term_char_t vt_constextbuf[(_VTDEFW) * (VBF_DEFAULT_HISTORY_SIZE)]; 236 static term_char_t *vt_constextbufrows[VBF_DEFAULT_HISTORY_SIZE]; 237 static struct vt_window vt_conswindow = { 238 .vw_number = VT_CONSWINDOW, 239 .vw_flags = VWF_CONSOLE, 240 .vw_buf = { 241 .vb_buffer = &vt_constextbuf[0], 242 .vb_rows = &vt_constextbufrows[0], 243 .vb_history_size = VBF_DEFAULT_HISTORY_SIZE, 244 .vb_curroffset = 0, 245 .vb_roffset = 0, 246 .vb_flags = VBF_STATIC, 247 .vb_mark_start = {.tp_row = 0, .tp_col = 0,}, 248 .vb_mark_end = {.tp_row = 0, .tp_col = 0,}, 249 .vb_scr_size = { 250 .tp_row = _VTDEFH, 251 .tp_col = _VTDEFW, 252 }, 253 }, 254 .vw_device = &vt_consdev, 255 .vw_terminal = &vt_consterm, 256 .vw_kbdmode = K_XLATE, 257 .vw_grabbed = 0, 258 .vw_bell_pitch = VT_BELLPITCH, 259 .vw_bell_duration = VT_BELLDURATION, 260 }; 261 262 /* Add to set of consoles. */ 263 TERMINAL_DECLARE_EARLY(vt_consterm, vt_termclass, &vt_conswindow); 264 265 /* 266 * Right after kmem is done to allow early drivers to use locking and allocate 267 * memory. 268 */ 269 SYSINIT(vt_update_static, SI_SUB_KMEM, SI_ORDER_ANY, vt_update_static, 270 &vt_consdev); 271 /* Delay until all devices attached, to not waste time. */ 272 SYSINIT(vt_early_cons, SI_SUB_INT_CONFIG_HOOKS, SI_ORDER_ANY, vt_upgrade, 273 &vt_consdev); 274 275 static bool inside_vt_flush = false; 276 static bool inside_vt_window_switch = false; 277 278 /* Initialize locks/mem depended members. */ 279 static void 280 vt_update_static(void *dummy) 281 { 282 283 if (!vty_enabled(VTY_VT)) 284 return; 285 if (main_vd->vd_driver != NULL) 286 printf("VT(%s): %s %ux%u\n", main_vd->vd_driver->vd_name, 287 (main_vd->vd_flags & VDF_TEXTMODE) ? "text" : "resolution", 288 main_vd->vd_width, main_vd->vd_height); 289 else 290 printf("VT: init without driver.\n"); 291 292 mtx_init(&main_vd->vd_lock, "vtdev", NULL, MTX_DEF); 293 mtx_init(&main_vd->vd_flush_lock, "vtdev flush", NULL, MTX_DEF); 294 cv_init(&main_vd->vd_winswitch, "vtwswt"); 295 } 296 297 static void 298 vt_schedule_flush(struct vt_device *vd, int ms) 299 { 300 301 if (ms <= 0) 302 /* Default to initial value. */ 303 ms = 1000 / VT_TIMERFREQ; 304 305 callout_schedule(&vd->vd_timer, hz / (1000 / ms)); 306 } 307 308 void 309 vt_resume_flush_timer(struct vt_window *vw, int ms) 310 { 311 struct vt_device *vd = vw->vw_device; 312 313 if (vd->vd_curwindow != vw) 314 return; 315 316 if (!(vd->vd_flags & VDF_ASYNC) || 317 !atomic_cmpset_int(&vd->vd_timer_armed, 0, 1)) 318 return; 319 320 vt_schedule_flush(vd, ms); 321 } 322 323 static void 324 vt_suspend_flush_timer(struct vt_device *vd) 325 { 326 /* 327 * As long as this function is called locked, callout_stop() 328 * has the same effect like callout_drain() with regard to 329 * preventing the callback function from executing. 330 */ 331 VT_LOCK_ASSERT(vd, MA_OWNED); 332 333 if (!(vd->vd_flags & VDF_ASYNC) || 334 !atomic_cmpset_int(&vd->vd_timer_armed, 1, 0)) 335 return; 336 337 callout_stop(&vd->vd_timer); 338 } 339 340 static void 341 vt_switch_timer(void *arg, int pending) 342 { 343 344 (void)vt_late_window_switch((struct vt_window *)arg); 345 } 346 347 static int 348 vt_save_kbd_mode(struct vt_window *vw, keyboard_t *kbd) 349 { 350 int mode, ret; 351 352 mode = 0; 353 ret = kbdd_ioctl(kbd, KDGKBMODE, (caddr_t)&mode); 354 if (ret == ENOIOCTL) 355 ret = ENODEV; 356 if (ret != 0) 357 return (ret); 358 359 vw->vw_kbdmode = mode; 360 361 return (0); 362 } 363 364 static int 365 vt_update_kbd_mode(struct vt_window *vw, keyboard_t *kbd) 366 { 367 int ret; 368 369 ret = kbdd_ioctl(kbd, KDSKBMODE, (caddr_t)&vw->vw_kbdmode); 370 if (ret == ENOIOCTL) 371 ret = ENODEV; 372 373 return (ret); 374 } 375 376 static int 377 vt_save_kbd_state(struct vt_window *vw, keyboard_t *kbd) 378 { 379 int state, ret; 380 381 state = 0; 382 ret = kbdd_ioctl(kbd, KDGKBSTATE, (caddr_t)&state); 383 if (ret == ENOIOCTL) 384 ret = ENODEV; 385 if (ret != 0) 386 return (ret); 387 388 vw->vw_kbdstate &= ~LOCK_MASK; 389 vw->vw_kbdstate |= state & LOCK_MASK; 390 391 return (0); 392 } 393 394 static int 395 vt_update_kbd_state(struct vt_window *vw, keyboard_t *kbd) 396 { 397 int state, ret; 398 399 state = vw->vw_kbdstate & LOCK_MASK; 400 ret = kbdd_ioctl(kbd, KDSKBSTATE, (caddr_t)&state); 401 if (ret == ENOIOCTL) 402 ret = ENODEV; 403 404 return (ret); 405 } 406 407 static int 408 vt_save_kbd_leds(struct vt_window *vw, keyboard_t *kbd) 409 { 410 int leds, ret; 411 412 leds = 0; 413 ret = kbdd_ioctl(kbd, KDGETLED, (caddr_t)&leds); 414 if (ret == ENOIOCTL) 415 ret = ENODEV; 416 if (ret != 0) 417 return (ret); 418 419 vw->vw_kbdstate &= ~LED_MASK; 420 vw->vw_kbdstate |= leds & LED_MASK; 421 422 return (0); 423 } 424 425 static int 426 vt_update_kbd_leds(struct vt_window *vw, keyboard_t *kbd) 427 { 428 int leds, ret; 429 430 leds = vw->vw_kbdstate & LED_MASK; 431 ret = kbdd_ioctl(kbd, KDSETLED, (caddr_t)&leds); 432 if (ret == ENOIOCTL) 433 ret = ENODEV; 434 435 return (ret); 436 } 437 438 static int 439 vt_window_preswitch(struct vt_window *vw, struct vt_window *curvw) 440 { 441 442 DPRINTF(40, "%s\n", __func__); 443 curvw->vw_switch_to = vw; 444 /* Set timer to allow switch in case when process hang. */ 445 taskqueue_enqueue_timeout(taskqueue_thread, &vw->vw_timeout_task_dead, hz * vt_deadtimer); 446 /* Notify process about vt switch attempt. */ 447 DPRINTF(30, "%s: Notify process.\n", __func__); 448 signal_vt_rel(curvw); 449 450 return (0); 451 } 452 453 static int 454 vt_window_postswitch(struct vt_window *vw) 455 { 456 457 signal_vt_acq(vw); 458 return (0); 459 } 460 461 /* vt_late_window_switch will do VT switching for regular case. */ 462 static int 463 vt_late_window_switch(struct vt_window *vw) 464 { 465 struct vt_window *curvw; 466 int ret; 467 468 taskqueue_cancel_timeout(taskqueue_thread, &vw->vw_timeout_task_dead, NULL); 469 470 ret = vt_window_switch(vw); 471 if (ret != 0) { 472 /* 473 * If the switch hasn't happened, then return the VT 474 * to the current owner, if any. 475 */ 476 curvw = vw->vw_device->vd_curwindow; 477 if (curvw->vw_smode.mode == VT_PROCESS) 478 (void)vt_window_postswitch(curvw); 479 return (ret); 480 } 481 482 /* Notify owner process about terminal availability. */ 483 if (vw->vw_smode.mode == VT_PROCESS) { 484 ret = vt_window_postswitch(vw); 485 } 486 return (ret); 487 } 488 489 /* Switch window. */ 490 static int 491 vt_proc_window_switch(struct vt_window *vw) 492 { 493 struct vt_window *curvw; 494 struct vt_device *vd; 495 int ret; 496 497 /* Prevent switching to NULL */ 498 if (vw == NULL) { 499 DPRINTF(30, "%s: Cannot switch: vw is NULL.", __func__); 500 return (EINVAL); 501 } 502 vd = vw->vw_device; 503 curvw = vd->vd_curwindow; 504 505 /* Check if virtual terminal is locked */ 506 if (curvw->vw_flags & VWF_VTYLOCK) 507 return (EBUSY); 508 509 /* Check if switch already in progress */ 510 if (curvw->vw_flags & VWF_SWWAIT_REL) { 511 /* Check if switching to same window */ 512 if (curvw->vw_switch_to == vw) { 513 DPRINTF(30, "%s: Switch in progress to same vw.", __func__); 514 return (0); /* success */ 515 } 516 DPRINTF(30, "%s: Switch in progress to different vw.", __func__); 517 return (EBUSY); 518 } 519 520 /* Avoid switching to already selected window */ 521 if (vw == curvw) { 522 DPRINTF(30, "%s: Cannot switch: vw == curvw.", __func__); 523 return (0); /* success */ 524 } 525 526 /* 527 * Early check for an attempt to switch to a non-functional VT. 528 * The same check is done in vt_window_switch(), but it's better 529 * to fail as early as possible to avoid needless pre-switch 530 * actions. 531 */ 532 VT_LOCK(vd); 533 if ((vw->vw_flags & (VWF_OPENED|VWF_CONSOLE)) == 0) { 534 VT_UNLOCK(vd); 535 return (EINVAL); 536 } 537 VT_UNLOCK(vd); 538 539 /* Ask current process permission to switch away. */ 540 if (curvw->vw_smode.mode == VT_PROCESS) { 541 DPRINTF(30, "%s: VT_PROCESS ", __func__); 542 if (vt_proc_alive(curvw) == FALSE) { 543 DPRINTF(30, "Dead. Cleaning."); 544 /* Dead */ 545 } else { 546 DPRINTF(30, "%s: Signaling process.\n", __func__); 547 /* Alive, try to ask him. */ 548 ret = vt_window_preswitch(vw, curvw); 549 /* Wait for process answer or timeout. */ 550 return (ret); 551 } 552 DPRINTF(30, "\n"); 553 } 554 555 ret = vt_late_window_switch(vw); 556 return (ret); 557 } 558 559 /* Switch window ignoring process locking. */ 560 static int 561 vt_window_switch(struct vt_window *vw) 562 { 563 struct vt_device *vd = vw->vw_device; 564 struct vt_window *curvw = vd->vd_curwindow; 565 keyboard_t *kbd; 566 567 if (inside_vt_window_switch && KERNEL_PANICKED()) 568 return (0); 569 570 inside_vt_window_switch = true; 571 572 if (kdb_active) { 573 /* 574 * When grabbing the console for the debugger, avoid 575 * locks as that can result in deadlock. While this 576 * could use try locks, that wouldn't really make a 577 * difference as there are sufficient barriers in 578 * debugger entry/exit to be equivalent to 579 * successfully try-locking here. 580 */ 581 if (!(vw->vw_flags & (VWF_OPENED|VWF_CONSOLE))) { 582 inside_vt_window_switch = false; 583 return (EINVAL); 584 } 585 586 vd->vd_curwindow = vw; 587 vd->vd_flags |= VDF_INVALID; 588 if (vd->vd_driver->vd_postswitch) 589 vd->vd_driver->vd_postswitch(vd); 590 inside_vt_window_switch = false; 591 return (0); 592 } 593 594 VT_LOCK(vd); 595 if (curvw == vw) { 596 /* 597 * Nothing to do, except ensure the driver has the opportunity to 598 * switch to console mode when panicking, making sure the panic 599 * is readable (even when a GUI was using ttyv0). 600 */ 601 if ((kdb_active || KERNEL_PANICKED()) && 602 vd->vd_driver->vd_postswitch) 603 vd->vd_driver->vd_postswitch(vd); 604 inside_vt_window_switch = false; 605 VT_UNLOCK(vd); 606 return (0); 607 } 608 if (!(vw->vw_flags & (VWF_OPENED|VWF_CONSOLE))) { 609 inside_vt_window_switch = false; 610 VT_UNLOCK(vd); 611 return (EINVAL); 612 } 613 614 vt_suspend_flush_timer(vd); 615 616 vd->vd_curwindow = vw; 617 vd->vd_flags |= VDF_INVALID; 618 cv_broadcast(&vd->vd_winswitch); 619 VT_UNLOCK(vd); 620 621 if (vd->vd_driver->vd_postswitch) 622 vd->vd_driver->vd_postswitch(vd); 623 624 vt_resume_flush_timer(vw, 0); 625 626 /* Restore per-window keyboard mode. */ 627 mtx_lock(&Giant); 628 if ((kbd = vd->vd_keyboard) != NULL) { 629 if (curvw->vw_kbdmode == K_XLATE) 630 vt_save_kbd_state(curvw, kbd); 631 632 vt_update_kbd_mode(vw, kbd); 633 vt_update_kbd_state(vw, kbd); 634 } 635 mtx_unlock(&Giant); 636 DPRINTF(10, "%s(ttyv%d) done\n", __func__, vw->vw_number); 637 638 inside_vt_window_switch = false; 639 return (0); 640 } 641 642 void 643 vt_termsize(struct vt_device *vd, struct vt_font *vf, term_pos_t *size) 644 { 645 646 size->tp_row = vd->vd_height; 647 if (vt_draw_logo_cpus) 648 size->tp_row -= vt_logo_sprite_height; 649 size->tp_col = vd->vd_width; 650 if (vf != NULL) { 651 size->tp_row = MIN(size->tp_row / vf->vf_height, 652 PIXEL_HEIGHT(VT_FB_MAX_HEIGHT)); 653 size->tp_col = MIN(size->tp_col / vf->vf_width, 654 PIXEL_WIDTH(VT_FB_MAX_WIDTH)); 655 } 656 } 657 658 static inline void 659 vt_termrect(struct vt_device *vd, struct vt_font *vf, term_rect_t *rect) 660 { 661 662 rect->tr_begin.tp_row = rect->tr_begin.tp_col = 0; 663 if (vt_draw_logo_cpus) 664 rect->tr_begin.tp_row = vt_logo_sprite_height; 665 666 rect->tr_end.tp_row = vd->vd_height; 667 rect->tr_end.tp_col = vd->vd_width; 668 669 if (vf != NULL) { 670 rect->tr_begin.tp_row = 671 howmany(rect->tr_begin.tp_row, vf->vf_height); 672 673 rect->tr_end.tp_row = MIN(rect->tr_end.tp_row / vf->vf_height, 674 PIXEL_HEIGHT(VT_FB_MAX_HEIGHT)); 675 rect->tr_end.tp_col = MIN(rect->tr_end.tp_col / vf->vf_width, 676 PIXEL_WIDTH(VT_FB_MAX_WIDTH)); 677 } 678 } 679 680 void 681 vt_winsize(struct vt_device *vd, struct vt_font *vf, struct winsize *size) 682 { 683 684 size->ws_ypixel = vd->vd_height; 685 if (vt_draw_logo_cpus) 686 size->ws_ypixel -= vt_logo_sprite_height; 687 size->ws_row = size->ws_ypixel; 688 size->ws_col = size->ws_xpixel = vd->vd_width; 689 if (vf != NULL) { 690 size->ws_row = MIN(size->ws_row / vf->vf_height, 691 PIXEL_HEIGHT(VT_FB_MAX_HEIGHT)); 692 size->ws_col = MIN(size->ws_col / vf->vf_width, 693 PIXEL_WIDTH(VT_FB_MAX_WIDTH)); 694 } 695 } 696 697 void 698 vt_compute_drawable_area(struct vt_window *vw) 699 { 700 struct vt_device *vd; 701 struct vt_font *vf; 702 vt_axis_t height; 703 704 vd = vw->vw_device; 705 706 if (vw->vw_font == NULL) { 707 vw->vw_draw_area.tr_begin.tp_col = 0; 708 vw->vw_draw_area.tr_begin.tp_row = 0; 709 if (vt_draw_logo_cpus) 710 vw->vw_draw_area.tr_begin.tp_row = vt_logo_sprite_height; 711 vw->vw_draw_area.tr_end.tp_col = vd->vd_width; 712 vw->vw_draw_area.tr_end.tp_row = vd->vd_height; 713 return; 714 } 715 716 vf = vw->vw_font; 717 718 /* 719 * Compute the drawable area, so that the text is centered on 720 * the screen. 721 */ 722 723 height = vd->vd_height; 724 if (vt_draw_logo_cpus) 725 height -= vt_logo_sprite_height; 726 vw->vw_draw_area.tr_begin.tp_col = (vd->vd_width % vf->vf_width) / 2; 727 vw->vw_draw_area.tr_begin.tp_row = (height % vf->vf_height) / 2; 728 if (vt_draw_logo_cpus) 729 vw->vw_draw_area.tr_begin.tp_row += vt_logo_sprite_height; 730 vw->vw_draw_area.tr_end.tp_col = vw->vw_draw_area.tr_begin.tp_col + 731 rounddown(vd->vd_width, vf->vf_width); 732 vw->vw_draw_area.tr_end.tp_row = vw->vw_draw_area.tr_begin.tp_row + 733 rounddown(height, vf->vf_height); 734 } 735 736 static void 737 vt_scroll(struct vt_window *vw, int offset, int whence) 738 { 739 int diff; 740 term_pos_t size; 741 742 if ((vw->vw_flags & VWF_SCROLL) == 0) 743 return; 744 745 vt_termsize(vw->vw_device, vw->vw_font, &size); 746 747 diff = vthistory_seek(&vw->vw_buf, offset, whence); 748 if (diff) 749 vw->vw_device->vd_flags |= VDF_INVALID; 750 vt_resume_flush_timer(vw, 0); 751 } 752 753 static int 754 vt_machine_kbdevent(struct vt_device *vd, int c) 755 { 756 757 switch (c) { 758 case SPCLKEY | DBG: /* kbdmap(5) keyword `debug`. */ 759 if (vt_kbd_debug) { 760 kdb_enter(KDB_WHY_BREAK, "manual escape to debugger"); 761 #if VT_ALT_TO_ESC_HACK 762 /* 763 * There's an unfortunate conflict between SPCLKEY|DBG 764 * and VT_ALT_TO_ESC_HACK. Just assume they didn't mean 765 * it if we got to here. 766 */ 767 vd->vd_kbstate &= ~ALKED; 768 #endif 769 } 770 return (1); 771 case SPCLKEY | HALT: /* kbdmap(5) keyword `halt`. */ 772 if (vt_kbd_halt) 773 shutdown_nice(RB_HALT); 774 return (1); 775 case SPCLKEY | PASTE: /* kbdmap(5) keyword `paste`. */ 776 #ifndef SC_NO_CUTPASTE 777 /* Insert text from cut-paste buffer. */ 778 vt_mouse_paste(); 779 #endif 780 break; 781 case SPCLKEY | PDWN: /* kbdmap(5) keyword `pdwn`. */ 782 if (vt_kbd_poweroff) 783 shutdown_nice(RB_HALT|RB_POWEROFF); 784 return (1); 785 case SPCLKEY | PNC: /* kbdmap(5) keyword `panic`. */ 786 /* 787 * Request to immediate panic if sysctl 788 * kern.vt.enable_panic_key allow it. 789 */ 790 if (vt_kbd_panic) 791 panic("Forced by the panic key"); 792 return (1); 793 case SPCLKEY | RBT: /* kbdmap(5) keyword `boot`. */ 794 if (vt_kbd_reboot) 795 shutdown_nice(RB_AUTOBOOT); 796 return (1); 797 case SPCLKEY | SPSC: /* kbdmap(5) keyword `spsc`. */ 798 /* Force activatation/deactivation of the screen saver. */ 799 /* TODO */ 800 return (1); 801 case SPCLKEY | STBY: /* XXX Not present in kbdcontrol parser. */ 802 /* Put machine into Stand-By mode. */ 803 power_pm_suspend(POWER_SLEEP_STATE_STANDBY); 804 return (1); 805 case SPCLKEY | SUSP: /* kbdmap(5) keyword `susp`. */ 806 /* Suspend machine. */ 807 power_pm_suspend(POWER_SLEEP_STATE_SUSPEND); 808 return (1); 809 } 810 811 return (0); 812 } 813 814 static void 815 vt_scrollmode_kbdevent(struct vt_window *vw, int c, int console) 816 { 817 struct vt_device *vd; 818 term_pos_t size; 819 820 vd = vw->vw_device; 821 /* Only special keys handled in ScrollLock mode */ 822 if ((c & SPCLKEY) == 0) 823 return; 824 825 c &= ~SPCLKEY; 826 827 if (console == 0) { 828 if (c >= F_SCR && c <= MIN(L_SCR, F_SCR + VT_MAXWINDOWS - 1)) { 829 vw = vd->vd_windows[c - F_SCR]; 830 vt_proc_window_switch(vw); 831 return; 832 } 833 VT_LOCK(vd); 834 } 835 836 switch (c) { 837 case SLK: { 838 /* Turn scrolling off. */ 839 vt_scroll(vw, 0, VHS_END); 840 VTBUF_SLCK_DISABLE(&vw->vw_buf); 841 vw->vw_flags &= ~VWF_SCROLL; 842 break; 843 } 844 case FKEY | F(49): /* Home key. */ 845 vt_scroll(vw, 0, VHS_SET); 846 break; 847 case FKEY | F(50): /* Arrow up. */ 848 vt_scroll(vw, -1, VHS_CUR); 849 break; 850 case FKEY | F(51): /* Page up. */ 851 vt_termsize(vd, vw->vw_font, &size); 852 vt_scroll(vw, -size.tp_row, VHS_CUR); 853 break; 854 case FKEY | F(57): /* End key. */ 855 vt_scroll(vw, 0, VHS_END); 856 break; 857 case FKEY | F(58): /* Arrow down. */ 858 vt_scroll(vw, 1, VHS_CUR); 859 break; 860 case FKEY | F(59): /* Page down. */ 861 vt_termsize(vd, vw->vw_font, &size); 862 vt_scroll(vw, size.tp_row, VHS_CUR); 863 break; 864 } 865 866 if (console == 0) 867 VT_UNLOCK(vd); 868 } 869 870 static int 871 vt_processkey(keyboard_t *kbd, struct vt_device *vd, int c) 872 { 873 struct vt_window *vw = vd->vd_curwindow; 874 875 random_harvest_queue(&c, sizeof(c), RANDOM_KEYBOARD); 876 #if VT_ALT_TO_ESC_HACK 877 if (c & RELKEY) { 878 switch (c & ~RELKEY) { 879 case (SPCLKEY | RALT): 880 if (vt_enable_altgr != 0) 881 break; 882 case (SPCLKEY | LALT): 883 vd->vd_kbstate &= ~ALKED; 884 } 885 /* Other keys ignored for RELKEY event. */ 886 return (0); 887 } else { 888 switch (c & ~RELKEY) { 889 case (SPCLKEY | RALT): 890 if (vt_enable_altgr != 0) 891 break; 892 case (SPCLKEY | LALT): 893 vd->vd_kbstate |= ALKED; 894 } 895 } 896 #else 897 if (c & RELKEY) 898 /* Other keys ignored for RELKEY event. */ 899 return (0); 900 #endif 901 902 if (vt_machine_kbdevent(vd, c)) 903 return (0); 904 905 if (vw->vw_flags & VWF_SCROLL) { 906 vt_scrollmode_kbdevent(vw, c, 0/* Not a console */); 907 /* Scroll mode keys handled, nothing to do more. */ 908 return (0); 909 } 910 911 if (c & SPCLKEY) { 912 c &= ~SPCLKEY; 913 914 if (c >= F_SCR && c <= MIN(L_SCR, F_SCR + VT_MAXWINDOWS - 1)) { 915 vw = vd->vd_windows[c - F_SCR]; 916 vt_proc_window_switch(vw); 917 return (0); 918 } 919 920 switch (c) { 921 case NEXT: 922 /* Switch to next VT. */ 923 c = (vw->vw_number + 1) % VT_MAXWINDOWS; 924 vw = vd->vd_windows[c]; 925 vt_proc_window_switch(vw); 926 return (0); 927 case PREV: 928 /* Switch to previous VT. */ 929 c = (vw->vw_number + VT_MAXWINDOWS - 1) % VT_MAXWINDOWS; 930 vw = vd->vd_windows[c]; 931 vt_proc_window_switch(vw); 932 return (0); 933 case SLK: { 934 vt_save_kbd_state(vw, kbd); 935 VT_LOCK(vd); 936 if (vw->vw_kbdstate & SLKED) { 937 /* Turn scrolling on. */ 938 vw->vw_flags |= VWF_SCROLL; 939 VTBUF_SLCK_ENABLE(&vw->vw_buf); 940 } else { 941 /* Turn scrolling off. */ 942 vw->vw_flags &= ~VWF_SCROLL; 943 VTBUF_SLCK_DISABLE(&vw->vw_buf); 944 vt_scroll(vw, 0, VHS_END); 945 } 946 VT_UNLOCK(vd); 947 break; 948 } 949 case FKEY | F(1): case FKEY | F(2): case FKEY | F(3): 950 case FKEY | F(4): case FKEY | F(5): case FKEY | F(6): 951 case FKEY | F(7): case FKEY | F(8): case FKEY | F(9): 952 case FKEY | F(10): case FKEY | F(11): case FKEY | F(12): 953 /* F1 through F12 keys. */ 954 terminal_input_special(vw->vw_terminal, 955 TKEY_F1 + c - (FKEY | F(1))); 956 break; 957 case FKEY | F(49): /* Home key. */ 958 terminal_input_special(vw->vw_terminal, TKEY_HOME); 959 break; 960 case FKEY | F(50): /* Arrow up. */ 961 terminal_input_special(vw->vw_terminal, TKEY_UP); 962 break; 963 case FKEY | F(51): /* Page up. */ 964 terminal_input_special(vw->vw_terminal, TKEY_PAGE_UP); 965 break; 966 case FKEY | F(53): /* Arrow left. */ 967 terminal_input_special(vw->vw_terminal, TKEY_LEFT); 968 break; 969 case FKEY | F(55): /* Arrow right. */ 970 terminal_input_special(vw->vw_terminal, TKEY_RIGHT); 971 break; 972 case FKEY | F(57): /* End key. */ 973 terminal_input_special(vw->vw_terminal, TKEY_END); 974 break; 975 case FKEY | F(58): /* Arrow down. */ 976 terminal_input_special(vw->vw_terminal, TKEY_DOWN); 977 break; 978 case FKEY | F(59): /* Page down. */ 979 terminal_input_special(vw->vw_terminal, TKEY_PAGE_DOWN); 980 break; 981 case FKEY | F(60): /* Insert key. */ 982 terminal_input_special(vw->vw_terminal, TKEY_INSERT); 983 break; 984 case FKEY | F(61): /* Delete key. */ 985 terminal_input_special(vw->vw_terminal, TKEY_DELETE); 986 break; 987 } 988 } else if (KEYFLAGS(c) == 0) { 989 /* Don't do UTF-8 conversion when doing raw mode. */ 990 if (vw->vw_kbdmode == K_XLATE) { 991 #if VT_ALT_TO_ESC_HACK 992 if (vd->vd_kbstate & ALKED) { 993 /* 994 * Prepend ESC sequence if one of ALT keys down. 995 */ 996 terminal_input_char(vw->vw_terminal, 0x1b); 997 } 998 #endif 999 #if defined(KDB) 1000 kdb_alt_break(c, &vd->vd_altbrk); 1001 #endif 1002 terminal_input_char(vw->vw_terminal, KEYCHAR(c)); 1003 } else 1004 terminal_input_raw(vw->vw_terminal, c); 1005 } 1006 return (0); 1007 } 1008 1009 static int 1010 vt_kbdevent(keyboard_t *kbd, int event, void *arg) 1011 { 1012 struct vt_device *vd = arg; 1013 int c; 1014 1015 switch (event) { 1016 case KBDIO_KEYINPUT: 1017 break; 1018 case KBDIO_UNLOADING: 1019 mtx_lock(&Giant); 1020 vd->vd_keyboard = NULL; 1021 kbd_release(kbd, (void *)vd); 1022 mtx_unlock(&Giant); 1023 return (0); 1024 default: 1025 return (EINVAL); 1026 } 1027 1028 while ((c = kbdd_read_char(kbd, 0)) != NOKEY) 1029 vt_processkey(kbd, vd, c); 1030 1031 return (0); 1032 } 1033 1034 static int 1035 vt_allocate_keyboard(struct vt_device *vd) 1036 { 1037 int grabbed, i, idx0, idx; 1038 keyboard_t *k0, *k; 1039 keyboard_info_t ki; 1040 1041 /* 1042 * If vt_upgrade() happens while the console is grabbed, we are 1043 * potentially going to switch keyboard devices while the keyboard is in 1044 * use. Unwind the grabbing of the current keyboard first, then we will 1045 * re-grab the new keyboard below, before we return. 1046 */ 1047 if (vd->vd_curwindow == &vt_conswindow) { 1048 grabbed = vd->vd_curwindow->vw_grabbed; 1049 for (i = 0; i < grabbed; ++i) 1050 vtterm_cnungrab_noswitch(vd, vd->vd_curwindow); 1051 } 1052 1053 idx0 = kbd_allocate("kbdmux", -1, vd, vt_kbdevent, vd); 1054 if (idx0 >= 0) { 1055 DPRINTF(20, "%s: kbdmux allocated, idx = %d\n", __func__, idx0); 1056 k0 = kbd_get_keyboard(idx0); 1057 1058 for (idx = kbd_find_keyboard2("*", -1, 0); 1059 idx != -1; 1060 idx = kbd_find_keyboard2("*", -1, idx + 1)) { 1061 k = kbd_get_keyboard(idx); 1062 1063 if (idx == idx0 || KBD_IS_BUSY(k)) 1064 continue; 1065 1066 bzero(&ki, sizeof(ki)); 1067 strncpy(ki.kb_name, k->kb_name, sizeof(ki.kb_name)); 1068 ki.kb_name[sizeof(ki.kb_name) - 1] = '\0'; 1069 ki.kb_unit = k->kb_unit; 1070 1071 kbdd_ioctl(k0, KBADDKBD, (caddr_t) &ki); 1072 } 1073 } else { 1074 DPRINTF(20, "%s: no kbdmux allocated\n", __func__); 1075 idx0 = kbd_allocate("*", -1, vd, vt_kbdevent, vd); 1076 if (idx0 < 0) { 1077 DPRINTF(10, "%s: No keyboard found.\n", __func__); 1078 return (-1); 1079 } 1080 k0 = kbd_get_keyboard(idx0); 1081 } 1082 vd->vd_keyboard = k0; 1083 DPRINTF(20, "%s: vd_keyboard = %d\n", __func__, 1084 vd->vd_keyboard->kb_index); 1085 1086 if (vd->vd_curwindow == &vt_conswindow) { 1087 for (i = 0; i < grabbed; ++i) 1088 vtterm_cngrab_noswitch(vd, vd->vd_curwindow); 1089 } 1090 1091 return (idx0); 1092 } 1093 1094 #define DEVCTL_LEN 64 1095 static void 1096 vtterm_devctl(bool enabled, bool hushed, int hz, sbintime_t duration) 1097 { 1098 struct sbuf sb; 1099 char *buf; 1100 1101 buf = malloc(DEVCTL_LEN, M_VT, M_NOWAIT); 1102 if (buf == NULL) 1103 return; 1104 sbuf_new(&sb, buf, DEVCTL_LEN, SBUF_FIXEDLEN); 1105 sbuf_printf(&sb, "enabled=%s hushed=%s hz=%d duration_ms=%d", 1106 enabled ? "true" : "false", hushed ? "true" : "false", 1107 hz, (int)(duration / SBT_1MS)); 1108 sbuf_finish(&sb); 1109 if (sbuf_error(&sb) == 0) 1110 devctl_notify("VT", "BELL", "RING", sbuf_data(&sb)); 1111 sbuf_delete(&sb); 1112 free(buf, M_VT); 1113 } 1114 1115 static void 1116 vtterm_bell(struct terminal *tm) 1117 { 1118 struct vt_window *vw = tm->tm_softc; 1119 struct vt_device *vd = vw->vw_device; 1120 1121 vtterm_devctl(vt_enable_bell, vd->vd_flags & VDF_QUIET_BELL, 1122 vw->vw_bell_pitch, vw->vw_bell_duration); 1123 1124 if (!vt_enable_bell) 1125 return; 1126 1127 if (vd->vd_flags & VDF_QUIET_BELL) 1128 return; 1129 1130 if (vw->vw_bell_pitch == 0 || 1131 vw->vw_bell_duration == 0) 1132 return; 1133 1134 sysbeep(vw->vw_bell_pitch, vw->vw_bell_duration); 1135 } 1136 1137 static void 1138 vtterm_beep(struct terminal *tm, u_int param) 1139 { 1140 u_int freq; 1141 sbintime_t period; 1142 struct vt_window *vw = tm->tm_softc; 1143 struct vt_device *vd = vw->vw_device; 1144 1145 if ((param == 0) || ((param & 0xffff) == 0)) { 1146 vtterm_bell(tm); 1147 return; 1148 } 1149 1150 period = ((param >> 16) & 0xffff) * SBT_1MS; 1151 freq = 1193182 / (param & 0xffff); 1152 1153 vtterm_devctl(vt_enable_bell, vd->vd_flags & VDF_QUIET_BELL, 1154 freq, period); 1155 1156 if (!vt_enable_bell) 1157 return; 1158 1159 sysbeep(freq, period); 1160 } 1161 1162 static void 1163 vtterm_cursor(struct terminal *tm, const term_pos_t *p) 1164 { 1165 struct vt_window *vw = tm->tm_softc; 1166 1167 vtbuf_cursor_position(&vw->vw_buf, p); 1168 } 1169 1170 static void 1171 vtterm_putchar(struct terminal *tm, const term_pos_t *p, term_char_t c) 1172 { 1173 struct vt_window *vw = tm->tm_softc; 1174 1175 vtbuf_putchar(&vw->vw_buf, p, c); 1176 } 1177 1178 static void 1179 vtterm_fill(struct terminal *tm, const term_rect_t *r, term_char_t c) 1180 { 1181 struct vt_window *vw = tm->tm_softc; 1182 1183 vtbuf_fill(&vw->vw_buf, r, c); 1184 } 1185 1186 static void 1187 vtterm_copy(struct terminal *tm, const term_rect_t *r, 1188 const term_pos_t *p) 1189 { 1190 struct vt_window *vw = tm->tm_softc; 1191 1192 vtbuf_copy(&vw->vw_buf, r, p); 1193 } 1194 1195 static void 1196 vtterm_param(struct terminal *tm, int cmd, unsigned int arg) 1197 { 1198 struct vt_window *vw = tm->tm_softc; 1199 1200 switch (cmd) { 1201 case TP_SETLOCALCURSOR: 1202 /* 1203 * 0 means normal (usually block), 1 means hidden, and 1204 * 2 means blinking (always block) for compatibility with 1205 * syscons. We don't support any changes except hiding, 1206 * so must map 2 to 0. 1207 */ 1208 arg = (arg == 1) ? 0 : 1; 1209 /* FALLTHROUGH */ 1210 case TP_SHOWCURSOR: 1211 vtbuf_cursor_visibility(&vw->vw_buf, arg); 1212 vt_resume_flush_timer(vw, 0); 1213 break; 1214 case TP_MOUSE: 1215 vw->vw_mouse_level = arg; 1216 break; 1217 case TP_SETBELLPD: 1218 vw->vw_bell_pitch = TP_SETBELLPD_PITCH(arg); 1219 vw->vw_bell_duration = 1220 TICKS_2_MSEC(TP_SETBELLPD_DURATION(arg)) * SBT_1MS; 1221 break; 1222 } 1223 } 1224 1225 void 1226 vt_determine_colors(term_char_t c, int cursor, 1227 term_color_t *fg, term_color_t *bg) 1228 { 1229 term_color_t tmp; 1230 int invert; 1231 1232 invert = 0; 1233 1234 *fg = TCHAR_FGCOLOR(c); 1235 if (TCHAR_FORMAT(c) & TF_BOLD) 1236 *fg = TCOLOR_LIGHT(*fg); 1237 *bg = TCHAR_BGCOLOR(c); 1238 if (TCHAR_FORMAT(c) & TF_BLINK) 1239 *bg = TCOLOR_LIGHT(*bg); 1240 1241 if (TCHAR_FORMAT(c) & TF_REVERSE) 1242 invert ^= 1; 1243 if (cursor) 1244 invert ^= 1; 1245 1246 if (invert) { 1247 tmp = *fg; 1248 *fg = *bg; 1249 *bg = tmp; 1250 } 1251 } 1252 1253 #ifndef SC_NO_CUTPASTE 1254 int 1255 vt_is_cursor_in_area(const struct vt_device *vd, const term_rect_t *area) 1256 { 1257 unsigned int mx, my; 1258 1259 /* 1260 * We use the cursor position saved during the current refresh, 1261 * in case the cursor moved since. 1262 */ 1263 mx = vd->vd_mx_drawn + vd->vd_curwindow->vw_draw_area.tr_begin.tp_col; 1264 my = vd->vd_my_drawn + vd->vd_curwindow->vw_draw_area.tr_begin.tp_row; 1265 1266 if (mx >= area->tr_end.tp_col || 1267 mx + vd->vd_mcursor->width <= area->tr_begin.tp_col || 1268 my >= area->tr_end.tp_row || 1269 my + vd->vd_mcursor->height <= area->tr_begin.tp_row) 1270 return (0); 1271 return (1); 1272 } 1273 1274 static void 1275 vt_mark_mouse_position_as_dirty(struct vt_device *vd, int locked) 1276 { 1277 term_rect_t area; 1278 struct vt_window *vw; 1279 struct vt_font *vf; 1280 int x, y; 1281 1282 vw = vd->vd_curwindow; 1283 vf = vw->vw_font; 1284 1285 x = vd->vd_mx_drawn; 1286 y = vd->vd_my_drawn; 1287 1288 if (vf != NULL) { 1289 area.tr_begin.tp_col = x / vf->vf_width; 1290 area.tr_begin.tp_row = y / vf->vf_height; 1291 area.tr_end.tp_col = 1292 ((x + vd->vd_mcursor->width) / vf->vf_width) + 1; 1293 area.tr_end.tp_row = 1294 ((y + vd->vd_mcursor->height) / vf->vf_height) + 1; 1295 } else { 1296 /* 1297 * No font loaded (ie. vt_vga operating in textmode). 1298 * 1299 * FIXME: This fake area needs to be revisited once the 1300 * mouse cursor is supported in vt_vga's textmode. 1301 */ 1302 area.tr_begin.tp_col = x; 1303 area.tr_begin.tp_row = y; 1304 area.tr_end.tp_col = x + 2; 1305 area.tr_end.tp_row = y + 2; 1306 } 1307 1308 if (!locked) 1309 vtbuf_lock(&vw->vw_buf); 1310 if (vd->vd_driver->vd_invalidate_text) 1311 vd->vd_driver->vd_invalidate_text(vd, &area); 1312 vtbuf_dirty(&vw->vw_buf, &area); 1313 if (!locked) 1314 vtbuf_unlock(&vw->vw_buf); 1315 } 1316 #endif 1317 1318 static void 1319 vt_set_border(struct vt_device *vd, const term_rect_t *area, 1320 term_color_t c) 1321 { 1322 vd_drawrect_t *drawrect = vd->vd_driver->vd_drawrect; 1323 1324 if (drawrect == NULL) 1325 return; 1326 1327 /* Top bar */ 1328 if (area->tr_begin.tp_row > 0) 1329 drawrect(vd, 0, 0, vd->vd_width - 1, 1330 area->tr_begin.tp_row - 1, 1, c); 1331 1332 /* Left bar */ 1333 if (area->tr_begin.tp_col > 0) 1334 drawrect(vd, 0, area->tr_begin.tp_row, 1335 area->tr_begin.tp_col - 1, area->tr_end.tp_row - 1, 1, c); 1336 1337 /* Right bar */ 1338 if (area->tr_end.tp_col < vd->vd_width) 1339 drawrect(vd, area->tr_end.tp_col, area->tr_begin.tp_row, 1340 vd->vd_width - 1, area->tr_end.tp_row - 1, 1, c); 1341 1342 /* Bottom bar */ 1343 if (area->tr_end.tp_row < vd->vd_height) 1344 drawrect(vd, 0, area->tr_end.tp_row, vd->vd_width - 1, 1345 vd->vd_height - 1, 1, c); 1346 } 1347 1348 static void 1349 vt_flush_to_buffer(struct vt_device *vd, 1350 const struct vt_window *vw, const term_rect_t *area) 1351 { 1352 unsigned int col, row; 1353 term_char_t c; 1354 term_color_t fg, bg; 1355 size_t z; 1356 1357 for (row = area->tr_begin.tp_row; row < area->tr_end.tp_row; ++row) { 1358 for (col = area->tr_begin.tp_col; col < area->tr_end.tp_col; 1359 ++col) { 1360 z = row * PIXEL_WIDTH(VT_FB_MAX_WIDTH) + col; 1361 if (z >= PIXEL_HEIGHT(VT_FB_MAX_HEIGHT) * 1362 PIXEL_WIDTH(VT_FB_MAX_WIDTH)) 1363 continue; 1364 1365 c = VTBUF_GET_FIELD(&vw->vw_buf, row, col); 1366 vt_determine_colors(c, 1367 VTBUF_ISCURSOR(&vw->vw_buf, row, col), &fg, &bg); 1368 1369 if (vd->vd_drawn && (vd->vd_drawn[z] == c) && 1370 vd->vd_drawnfg && (vd->vd_drawnfg[z] == fg) && 1371 vd->vd_drawnbg && (vd->vd_drawnbg[z] == bg)) { 1372 vd->vd_pos_to_flush[z] = false; 1373 continue; 1374 } 1375 1376 vd->vd_pos_to_flush[z] = true; 1377 1378 if (vd->vd_drawn) 1379 vd->vd_drawn[z] = c; 1380 if (vd->vd_drawnfg) 1381 vd->vd_drawnfg[z] = fg; 1382 if (vd->vd_drawnbg) 1383 vd->vd_drawnbg[z] = bg; 1384 } 1385 } 1386 } 1387 1388 static void 1389 vt_bitblt_buffer(struct vt_device *vd, const struct vt_window *vw, 1390 const term_rect_t *area) 1391 { 1392 unsigned int col, row, x, y; 1393 struct vt_font *vf; 1394 term_char_t c; 1395 term_color_t fg, bg; 1396 const uint8_t *pattern; 1397 size_t z; 1398 1399 vf = vw->vw_font; 1400 1401 for (row = area->tr_begin.tp_row; row < area->tr_end.tp_row; ++row) { 1402 for (col = area->tr_begin.tp_col; col < area->tr_end.tp_col; 1403 ++col) { 1404 x = col * vf->vf_width + 1405 vw->vw_draw_area.tr_begin.tp_col; 1406 y = row * vf->vf_height + 1407 vw->vw_draw_area.tr_begin.tp_row; 1408 1409 z = row * PIXEL_WIDTH(VT_FB_MAX_WIDTH) + col; 1410 if (z >= PIXEL_HEIGHT(VT_FB_MAX_HEIGHT) * 1411 PIXEL_WIDTH(VT_FB_MAX_WIDTH)) 1412 continue; 1413 if (!vd->vd_pos_to_flush[z]) 1414 continue; 1415 1416 c = vd->vd_drawn[z]; 1417 fg = vd->vd_drawnfg[z]; 1418 bg = vd->vd_drawnbg[z]; 1419 1420 pattern = vtfont_lookup(vf, c); 1421 vd->vd_driver->vd_bitblt_bmp(vd, vw, 1422 pattern, NULL, vf->vf_width, vf->vf_height, 1423 x, y, fg, bg); 1424 } 1425 } 1426 1427 #ifndef SC_NO_CUTPASTE 1428 if (!vd->vd_mshown) 1429 return; 1430 1431 term_rect_t drawn_area; 1432 1433 drawn_area.tr_begin.tp_col = area->tr_begin.tp_col * vf->vf_width; 1434 drawn_area.tr_begin.tp_row = area->tr_begin.tp_row * vf->vf_height; 1435 drawn_area.tr_end.tp_col = area->tr_end.tp_col * vf->vf_width; 1436 drawn_area.tr_end.tp_row = area->tr_end.tp_row * vf->vf_height; 1437 1438 if (vt_is_cursor_in_area(vd, &drawn_area)) { 1439 vd->vd_driver->vd_bitblt_bmp(vd, vw, 1440 vd->vd_mcursor->map, vd->vd_mcursor->mask, 1441 vd->vd_mcursor->width, vd->vd_mcursor->height, 1442 vd->vd_mx_drawn + vw->vw_draw_area.tr_begin.tp_col, 1443 vd->vd_my_drawn + vw->vw_draw_area.tr_begin.tp_row, 1444 vd->vd_mcursor_fg, vd->vd_mcursor_bg); 1445 } 1446 #endif 1447 } 1448 1449 static void 1450 vt_draw_decorations(struct vt_device *vd) 1451 { 1452 struct vt_window *vw; 1453 const teken_attr_t *a; 1454 1455 vw = vd->vd_curwindow; 1456 1457 a = teken_get_curattr(&vw->vw_terminal->tm_emulator); 1458 vt_set_border(vd, &vw->vw_draw_area, a->ta_bgcolor); 1459 1460 if (vt_draw_logo_cpus) 1461 vtterm_draw_cpu_logos(vd); 1462 } 1463 1464 static int 1465 vt_flush(struct vt_device *vd) 1466 { 1467 struct vt_window *vw; 1468 struct vt_font *vf; 1469 term_rect_t tarea; 1470 #ifndef SC_NO_CUTPASTE 1471 int cursor_was_shown, cursor_moved; 1472 #endif 1473 bool needs_refresh; 1474 1475 if (inside_vt_flush && KERNEL_PANICKED()) 1476 return (0); 1477 1478 vw = vd->vd_curwindow; 1479 if (vw == NULL) 1480 return (0); 1481 1482 if (vd->vd_flags & VDF_SPLASH || vw->vw_flags & VWF_BUSY) 1483 return (0); 1484 1485 vf = vw->vw_font; 1486 if (((vd->vd_flags & VDF_TEXTMODE) == 0) && (vf == NULL)) 1487 return (0); 1488 1489 VT_FLUSH_LOCK(vd); 1490 1491 vtbuf_lock(&vw->vw_buf); 1492 inside_vt_flush = true; 1493 1494 #ifndef SC_NO_CUTPASTE 1495 cursor_was_shown = vd->vd_mshown; 1496 cursor_moved = (vd->vd_mx != vd->vd_mx_drawn || 1497 vd->vd_my != vd->vd_my_drawn); 1498 1499 /* Check if the cursor should be displayed or not. */ 1500 if ((vd->vd_flags & VDF_MOUSECURSOR) && /* Mouse support enabled. */ 1501 !(vw->vw_flags & VWF_MOUSE_HIDE) && /* Cursor displayed. */ 1502 !kdb_active && !KERNEL_PANICKED()) { /* DDB inactive. */ 1503 vd->vd_mshown = 1; 1504 } else { 1505 vd->vd_mshown = 0; 1506 } 1507 1508 /* 1509 * If the cursor changed display state or moved, we must mark 1510 * the old position as dirty, so that it's erased. 1511 */ 1512 if (cursor_was_shown != vd->vd_mshown || 1513 (vd->vd_mshown && cursor_moved)) 1514 vt_mark_mouse_position_as_dirty(vd, true); 1515 1516 /* 1517 * Save position of the mouse cursor. It's used by backends to 1518 * know where to draw the cursor and during the next refresh to 1519 * erase the previous position. 1520 */ 1521 vd->vd_mx_drawn = vd->vd_mx; 1522 vd->vd_my_drawn = vd->vd_my; 1523 1524 /* 1525 * If the cursor is displayed and has moved since last refresh, 1526 * mark the new position as dirty. 1527 */ 1528 if (vd->vd_mshown && cursor_moved) 1529 vt_mark_mouse_position_as_dirty(vd, true); 1530 #endif 1531 1532 vtbuf_undirty(&vw->vw_buf, &tarea); 1533 1534 /* Force a full redraw when the screen contents might be invalid. */ 1535 needs_refresh = false; 1536 if (vd->vd_flags & (VDF_INVALID | VDF_SUSPENDED)) { 1537 needs_refresh = true; 1538 vd->vd_flags &= ~VDF_INVALID; 1539 1540 vt_termrect(vd, vf, &tarea); 1541 if (vd->vd_driver->vd_invalidate_text) 1542 vd->vd_driver->vd_invalidate_text(vd, &tarea); 1543 } 1544 1545 if (tarea.tr_begin.tp_col < tarea.tr_end.tp_col) { 1546 if (vd->vd_driver->vd_bitblt_after_vtbuf_unlock) { 1547 /* 1548 * When `vd_bitblt_after_vtbuf_unlock` is set to true, 1549 * we first remember the characters to redraw. They are 1550 * already copied to the `vd_drawn` arrays. 1551 * 1552 * We then unlock vt_buf and proceed with the actual 1553 * drawing using the backend driver. 1554 */ 1555 vt_flush_to_buffer(vd, vw, &tarea); 1556 vtbuf_unlock(&vw->vw_buf); 1557 vt_bitblt_buffer(vd, vw, &tarea); 1558 1559 if (needs_refresh) 1560 vt_draw_decorations(vd); 1561 1562 /* 1563 * We can reset `inside_vt_flush` after unlocking vtbuf 1564 * here because we also hold vt_flush_lock in this code 1565 * path. 1566 */ 1567 inside_vt_flush = false; 1568 } else { 1569 /* 1570 * When `vd_bitblt_after_vtbuf_unlock` is false, we use 1571 * the backend's `vd_bitblt_text` callback directly. 1572 */ 1573 vd->vd_driver->vd_bitblt_text(vd, vw, &tarea); 1574 1575 if (needs_refresh) 1576 vt_draw_decorations(vd); 1577 1578 inside_vt_flush = false; 1579 vtbuf_unlock(&vw->vw_buf); 1580 } 1581 1582 VT_FLUSH_UNLOCK(vd); 1583 1584 return (1); 1585 } 1586 1587 inside_vt_flush = false; 1588 vtbuf_unlock(&vw->vw_buf); 1589 1590 VT_FLUSH_UNLOCK(vd); 1591 1592 return (0); 1593 } 1594 1595 static void 1596 vt_timer(void *arg) 1597 { 1598 struct vt_device *vd; 1599 int changed; 1600 1601 vd = arg; 1602 /* Update screen if required. */ 1603 changed = vt_flush(vd); 1604 1605 /* Schedule for next update. */ 1606 if (changed) 1607 vt_schedule_flush(vd, 0); 1608 else 1609 vd->vd_timer_armed = 0; 1610 } 1611 1612 static void 1613 vtterm_pre_input(struct terminal *tm) 1614 { 1615 struct vt_window *vw = tm->tm_softc; 1616 1617 if (inside_vt_flush && KERNEL_PANICKED()) 1618 return; 1619 1620 vtbuf_lock(&vw->vw_buf); 1621 } 1622 1623 static void 1624 vtterm_post_input(struct terminal *tm) 1625 { 1626 struct vt_window *vw = tm->tm_softc; 1627 1628 if (inside_vt_flush && KERNEL_PANICKED()) 1629 return; 1630 1631 vtbuf_unlock(&vw->vw_buf); 1632 vt_resume_flush_timer(vw, 0); 1633 } 1634 1635 static void 1636 vtterm_done(struct terminal *tm) 1637 { 1638 struct vt_window *vw = tm->tm_softc; 1639 struct vt_device *vd = vw->vw_device; 1640 1641 if (kdb_active || KERNEL_PANICKED()) { 1642 /* Switch to the debugger. */ 1643 if (vd->vd_curwindow != vw) { 1644 vd->vd_curwindow = vw; 1645 vd->vd_flags |= VDF_INVALID; 1646 if (vd->vd_driver->vd_postswitch) 1647 vd->vd_driver->vd_postswitch(vd); 1648 } 1649 vd->vd_flags &= ~VDF_SPLASH; 1650 vt_flush(vd); 1651 } else if (!(vd->vd_flags & VDF_ASYNC)) { 1652 vt_flush(vd); 1653 } 1654 } 1655 1656 #ifdef DEV_SPLASH 1657 static void 1658 vtterm_splash(struct vt_device *vd) 1659 { 1660 vt_axis_t top, left; 1661 1662 /* Display a nice boot splash. */ 1663 if (!(vd->vd_flags & VDF_TEXTMODE) && (boothowto & RB_MUTE)) { 1664 top = (vd->vd_height - vt_logo_height) / 2; 1665 left = (vd->vd_width - vt_logo_width) / 2; 1666 switch (vt_logo_depth) { 1667 case 1: 1668 /* XXX: Unhardcode colors! */ 1669 vd->vd_driver->vd_bitblt_bmp(vd, vd->vd_curwindow, 1670 vt_logo_image, NULL, vt_logo_width, vt_logo_height, 1671 left, top, TC_WHITE, TC_BLACK); 1672 } 1673 vd->vd_flags |= VDF_SPLASH; 1674 } 1675 } 1676 #endif 1677 1678 static struct vt_font * 1679 parse_font_info_static(struct font_info *fi) 1680 { 1681 struct vt_font *vfp; 1682 uintptr_t ptr; 1683 uint32_t checksum; 1684 1685 if (fi == NULL) 1686 return (NULL); 1687 1688 ptr = (uintptr_t)fi; 1689 /* 1690 * Compute and verify checksum. The total sum of all the fields 1691 * must be 0. 1692 */ 1693 checksum = fi->fi_width; 1694 checksum += fi->fi_height; 1695 checksum += fi->fi_bitmap_size; 1696 for (unsigned i = 0; i < VFNT_MAPS; i++) 1697 checksum += fi->fi_map_count[i]; 1698 1699 if (checksum + fi->fi_checksum != 0) 1700 return (NULL); 1701 1702 ptr += sizeof(struct font_info); 1703 ptr = roundup2(ptr, 8); 1704 1705 vfp = &vt_font_loader; 1706 vfp->vf_height = fi->fi_height; 1707 vfp->vf_width = fi->fi_width; 1708 /* This is default font, set refcount 1 to disable removal. */ 1709 vfp->vf_refcount = 1; 1710 for (unsigned i = 0; i < VFNT_MAPS; i++) { 1711 if (fi->fi_map_count[i] == 0) 1712 continue; 1713 vfp->vf_map_count[i] = fi->fi_map_count[i]; 1714 vfp->vf_map[i] = (vfnt_map_t *)ptr; 1715 ptr += (fi->fi_map_count[i] * sizeof(vfnt_map_t)); 1716 ptr = roundup2(ptr, 8); 1717 } 1718 vfp->vf_bytes = (uint8_t *)ptr; 1719 return (vfp); 1720 } 1721 1722 /* 1723 * Set up default font with allocated data structures. 1724 * However, we can not set refcount here, because it is already set and 1725 * incremented in vtterm_cnprobe() to avoid being released by font load from 1726 * userland. 1727 */ 1728 static struct vt_font * 1729 parse_font_info(struct font_info *fi) 1730 { 1731 struct vt_font *vfp; 1732 uintptr_t ptr; 1733 uint32_t checksum; 1734 size_t size; 1735 1736 if (fi == NULL) 1737 return (NULL); 1738 1739 ptr = (uintptr_t)fi; 1740 /* 1741 * Compute and verify checksum. The total sum of all the fields 1742 * must be 0. 1743 */ 1744 checksum = fi->fi_width; 1745 checksum += fi->fi_height; 1746 checksum += fi->fi_bitmap_size; 1747 for (unsigned i = 0; i < VFNT_MAPS; i++) 1748 checksum += fi->fi_map_count[i]; 1749 1750 if (checksum + fi->fi_checksum != 0) 1751 return (NULL); 1752 1753 ptr += sizeof(struct font_info); 1754 ptr = roundup2(ptr, 8); 1755 1756 vfp = &vt_font_loader; 1757 vfp->vf_height = fi->fi_height; 1758 vfp->vf_width = fi->fi_width; 1759 for (unsigned i = 0; i < VFNT_MAPS; i++) { 1760 if (fi->fi_map_count[i] == 0) 1761 continue; 1762 vfp->vf_map_count[i] = fi->fi_map_count[i]; 1763 size = fi->fi_map_count[i] * sizeof(vfnt_map_t); 1764 vfp->vf_map[i] = malloc(size, M_VT, M_WAITOK | M_ZERO); 1765 bcopy((vfnt_map_t *)ptr, vfp->vf_map[i], size); 1766 ptr += size; 1767 ptr = roundup2(ptr, 8); 1768 } 1769 vfp->vf_bytes = malloc(fi->fi_bitmap_size, M_VT, M_WAITOK | M_ZERO); 1770 bcopy((uint8_t *)ptr, vfp->vf_bytes, fi->fi_bitmap_size); 1771 return (vfp); 1772 } 1773 1774 static void 1775 vt_init_font(void *arg) 1776 { 1777 caddr_t kmdp; 1778 struct font_info *fi; 1779 struct vt_font *font; 1780 1781 kmdp = preload_search_by_type("elf kernel"); 1782 if (kmdp == NULL) 1783 kmdp = preload_search_by_type("elf64 kernel"); 1784 fi = MD_FETCH(kmdp, MODINFOMD_FONT, struct font_info *); 1785 1786 font = parse_font_info(fi); 1787 if (font != NULL) 1788 vt_font_assigned = font; 1789 } 1790 1791 SYSINIT(vt_init_font, SI_SUB_KMEM, SI_ORDER_ANY, vt_init_font, &vt_consdev); 1792 1793 static void 1794 vt_init_font_static(void) 1795 { 1796 caddr_t kmdp; 1797 struct font_info *fi; 1798 struct vt_font *font; 1799 1800 kmdp = preload_search_by_type("elf kernel"); 1801 if (kmdp == NULL) 1802 kmdp = preload_search_by_type("elf64 kernel"); 1803 fi = MD_FETCH(kmdp, MODINFOMD_FONT, struct font_info *); 1804 1805 font = parse_font_info_static(fi); 1806 if (font != NULL) 1807 vt_font_assigned = font; 1808 } 1809 1810 static void 1811 vtterm_cnprobe(struct terminal *tm, struct consdev *cp) 1812 { 1813 struct vt_driver *vtd, **vtdlist, *vtdbest = NULL; 1814 struct vt_window *vw = tm->tm_softc; 1815 struct vt_device *vd = vw->vw_device; 1816 struct winsize wsz; 1817 const term_attr_t *a; 1818 1819 if (!vty_enabled(VTY_VT)) 1820 return; 1821 1822 if (vd->vd_flags & VDF_INITIALIZED) 1823 /* Initialization already done. */ 1824 return; 1825 1826 SET_FOREACH(vtdlist, vt_drv_set) { 1827 vtd = *vtdlist; 1828 if (vtd->vd_probe == NULL) 1829 continue; 1830 if (vtd->vd_probe(vd) == CN_DEAD) 1831 continue; 1832 if ((vtdbest == NULL) || 1833 (vtd->vd_priority > vtdbest->vd_priority)) 1834 vtdbest = vtd; 1835 } 1836 if (vtdbest == NULL) { 1837 cp->cn_pri = CN_DEAD; 1838 vd->vd_flags |= VDF_DEAD; 1839 } else { 1840 vd->vd_driver = vtdbest; 1841 cp->cn_pri = vd->vd_driver->vd_init(vd); 1842 } 1843 1844 /* Check if driver's vt_init return CN_DEAD. */ 1845 if (cp->cn_pri == CN_DEAD) { 1846 vd->vd_flags |= VDF_DEAD; 1847 } 1848 1849 /* Initialize any early-boot keyboard drivers */ 1850 kbd_configure(KB_CONF_PROBE_ONLY); 1851 1852 vd->vd_unit = atomic_fetchadd_int(&vt_unit, 1); 1853 vd->vd_windows[VT_CONSWINDOW] = vw; 1854 sprintf(cp->cn_name, "ttyv%r", VT_UNIT(vw)); 1855 1856 vt_init_font_static(); 1857 1858 /* Attach default font if not in TEXTMODE. */ 1859 if ((vd->vd_flags & VDF_TEXTMODE) == 0) { 1860 vw->vw_font = vtfont_ref(vt_font_assigned); 1861 vt_compute_drawable_area(vw); 1862 } 1863 1864 /* 1865 * The original screen size was faked (_VTDEFW x _VTDEFH). Now 1866 * that we have the real viewable size, fix it in the static 1867 * buffer. 1868 */ 1869 if (vd->vd_width != 0 && vd->vd_height != 0) 1870 vt_termsize(vd, vw->vw_font, &vw->vw_buf.vb_scr_size); 1871 1872 /* We need to access terminal attributes from vtbuf */ 1873 vw->vw_buf.vb_terminal = tm; 1874 vtbuf_init_early(&vw->vw_buf); 1875 vt_winsize(vd, vw->vw_font, &wsz); 1876 a = teken_get_curattr(&tm->tm_emulator); 1877 terminal_set_winsize_blank(tm, &wsz, 1, a); 1878 1879 if (vtdbest != NULL) { 1880 #ifdef DEV_SPLASH 1881 if (!vt_splash_cpu) 1882 vtterm_splash(vd); 1883 #endif 1884 vd->vd_flags |= VDF_INITIALIZED; 1885 } 1886 } 1887 1888 static int 1889 vtterm_cngetc(struct terminal *tm) 1890 { 1891 struct vt_window *vw = tm->tm_softc; 1892 struct vt_device *vd = vw->vw_device; 1893 keyboard_t *kbd; 1894 u_int c; 1895 1896 if (vw->vw_kbdsq && *vw->vw_kbdsq) 1897 return (*vw->vw_kbdsq++); 1898 1899 /* Make sure the splash screen is not there. */ 1900 if (vd->vd_flags & VDF_SPLASH) { 1901 /* Remove splash */ 1902 vd->vd_flags &= ~VDF_SPLASH; 1903 /* Mark screen as invalid to force update */ 1904 vd->vd_flags |= VDF_INVALID; 1905 vt_flush(vd); 1906 } 1907 1908 /* Stripped down keyboard handler. */ 1909 if ((kbd = vd->vd_keyboard) == NULL) 1910 return (-1); 1911 1912 /* Force keyboard input mode to K_XLATE */ 1913 vw->vw_kbdmode = K_XLATE; 1914 vt_update_kbd_mode(vw, kbd); 1915 1916 /* Switch the keyboard to polling to make it work here. */ 1917 kbdd_poll(kbd, TRUE); 1918 c = kbdd_read_char(kbd, 0); 1919 kbdd_poll(kbd, FALSE); 1920 if (c & RELKEY) 1921 return (-1); 1922 1923 if (vw->vw_flags & VWF_SCROLL) { 1924 vt_scrollmode_kbdevent(vw, c, 1/* Console mode */); 1925 vt_flush(vd); 1926 return (-1); 1927 } 1928 1929 /* Stripped down handling of vt_kbdevent(), without locking, etc. */ 1930 if (c & SPCLKEY) { 1931 switch (c) { 1932 case SPCLKEY | SLK: 1933 vt_save_kbd_state(vw, kbd); 1934 if (vw->vw_kbdstate & SLKED) { 1935 /* Turn scrolling on. */ 1936 vw->vw_flags |= VWF_SCROLL; 1937 VTBUF_SLCK_ENABLE(&vw->vw_buf); 1938 } else { 1939 /* Turn scrolling off. */ 1940 vt_scroll(vw, 0, VHS_END); 1941 vw->vw_flags &= ~VWF_SCROLL; 1942 VTBUF_SLCK_DISABLE(&vw->vw_buf); 1943 } 1944 break; 1945 /* XXX: KDB can handle history. */ 1946 case SPCLKEY | FKEY | F(50): /* Arrow up. */ 1947 vw->vw_kbdsq = "\x1b[A"; 1948 break; 1949 case SPCLKEY | FKEY | F(58): /* Arrow down. */ 1950 vw->vw_kbdsq = "\x1b[B"; 1951 break; 1952 case SPCLKEY | FKEY | F(55): /* Arrow right. */ 1953 vw->vw_kbdsq = "\x1b[C"; 1954 break; 1955 case SPCLKEY | FKEY | F(53): /* Arrow left. */ 1956 vw->vw_kbdsq = "\x1b[D"; 1957 break; 1958 } 1959 1960 /* Force refresh to make scrollback work. */ 1961 vt_flush(vd); 1962 } else if (KEYFLAGS(c) == 0) { 1963 return (KEYCHAR(c)); 1964 } 1965 1966 if (vw->vw_kbdsq && *vw->vw_kbdsq) 1967 return (*vw->vw_kbdsq++); 1968 1969 return (-1); 1970 } 1971 1972 /* 1973 * These two do most of what we want to do in vtterm_cnungrab, but without 1974 * actually switching windows. This is necessary for, e.g., 1975 * vt_allocate_keyboard() to get the current keyboard into the state it needs to 1976 * be in without damaging the device's window state. 1977 * 1978 * Both return the current grab count, though it's only used in vtterm_cnungrab. 1979 */ 1980 static int 1981 vtterm_cngrab_noswitch(struct vt_device *vd, struct vt_window *vw) 1982 { 1983 keyboard_t *kbd; 1984 1985 if (vw->vw_grabbed++ > 0) 1986 return (vw->vw_grabbed); 1987 1988 if ((kbd = vd->vd_keyboard) == NULL) 1989 return (1); 1990 1991 /* 1992 * Make sure the keyboard is accessible even when the kbd device 1993 * driver is disabled. 1994 */ 1995 kbdd_enable(kbd); 1996 1997 /* We shall always use the keyboard in the XLATE mode here. */ 1998 vw->vw_prev_kbdmode = vw->vw_kbdmode; 1999 vw->vw_kbdmode = K_XLATE; 2000 vt_update_kbd_mode(vw, kbd); 2001 2002 kbdd_poll(kbd, TRUE); 2003 return (1); 2004 } 2005 2006 static int 2007 vtterm_cnungrab_noswitch(struct vt_device *vd, struct vt_window *vw) 2008 { 2009 keyboard_t *kbd; 2010 2011 if (--vw->vw_grabbed > 0) 2012 return (vw->vw_grabbed); 2013 2014 if ((kbd = vd->vd_keyboard) == NULL) 2015 return (0); 2016 2017 kbdd_poll(kbd, FALSE); 2018 2019 vw->vw_kbdmode = vw->vw_prev_kbdmode; 2020 vt_update_kbd_mode(vw, kbd); 2021 kbdd_disable(kbd); 2022 return (0); 2023 } 2024 2025 static void 2026 vtterm_cngrab(struct terminal *tm) 2027 { 2028 struct vt_device *vd; 2029 struct vt_window *vw; 2030 2031 vw = tm->tm_softc; 2032 vd = vw->vw_device; 2033 2034 /* To be restored after we ungrab. */ 2035 if (vd->vd_grabwindow == NULL) 2036 vd->vd_grabwindow = vd->vd_curwindow; 2037 2038 if (!cold) 2039 vt_window_switch(vw); 2040 2041 vtterm_cngrab_noswitch(vd, vw); 2042 } 2043 2044 static void 2045 vtterm_cnungrab(struct terminal *tm) 2046 { 2047 struct vt_device *vd; 2048 struct vt_window *vw, *grabwindow; 2049 2050 vw = tm->tm_softc; 2051 vd = vw->vw_device; 2052 2053 MPASS(vd->vd_grabwindow != NULL); 2054 if (vtterm_cnungrab_noswitch(vd, vw) != 0) 2055 return; 2056 2057 /* 2058 * We set `vd_grabwindow` to NULL before calling vt_window_switch() 2059 * because it allows the underlying vt(4) backend to distinguish a 2060 * "grab" from an "ungrab" of the console. 2061 * 2062 * This is used by `vt_drmfb` in drm-kmod to call either 2063 * fb_debug_enter() or fb_debug_leave() appropriately. 2064 */ 2065 grabwindow = vd->vd_grabwindow; 2066 vd->vd_grabwindow = NULL; 2067 2068 if (!cold) 2069 vt_window_switch(grabwindow); 2070 } 2071 2072 static void 2073 vtterm_opened(struct terminal *tm, int opened) 2074 { 2075 struct vt_window *vw = tm->tm_softc; 2076 struct vt_device *vd = vw->vw_device; 2077 2078 VT_LOCK(vd); 2079 vd->vd_flags &= ~VDF_SPLASH; 2080 if (opened) 2081 vw->vw_flags |= VWF_OPENED; 2082 else { 2083 vw->vw_flags &= ~VWF_OPENED; 2084 /* TODO: finish ACQ/REL */ 2085 } 2086 VT_UNLOCK(vd); 2087 } 2088 2089 static int 2090 vt_change_font(struct vt_window *vw, struct vt_font *vf) 2091 { 2092 struct vt_device *vd = vw->vw_device; 2093 struct terminal *tm = vw->vw_terminal; 2094 term_pos_t size; 2095 struct winsize wsz; 2096 2097 /* 2098 * Changing fonts. 2099 * 2100 * Changing fonts is a little tricky. We must prevent 2101 * simultaneous access to the device, so we must stop 2102 * the display timer and the terminal from accessing. 2103 * We need to switch fonts and grow our screen buffer. 2104 * 2105 * XXX: Right now the code uses terminal_mute() to 2106 * prevent data from reaching the console driver while 2107 * resizing the screen buffer. This isn't elegant... 2108 */ 2109 2110 VT_LOCK(vd); 2111 if (vw->vw_flags & VWF_BUSY) { 2112 /* Another process is changing the font. */ 2113 VT_UNLOCK(vd); 2114 return (EBUSY); 2115 } 2116 vw->vw_flags |= VWF_BUSY; 2117 VT_UNLOCK(vd); 2118 2119 vt_termsize(vd, vf, &size); 2120 vt_winsize(vd, vf, &wsz); 2121 2122 /* Grow the screen buffer and terminal. */ 2123 terminal_mute(tm, 1); 2124 vtbuf_grow(&vw->vw_buf, &size, vw->vw_buf.vb_history_size); 2125 terminal_set_winsize_blank(tm, &wsz, 0, NULL); 2126 terminal_set_cursor(tm, &vw->vw_buf.vb_cursor); 2127 terminal_mute(tm, 0); 2128 2129 /* Actually apply the font to the current window. */ 2130 VT_LOCK(vd); 2131 if (vw->vw_font != vf && vw->vw_font != NULL && vf != NULL) { 2132 /* 2133 * In case vt_change_font called to update size we don't need 2134 * to update font link. 2135 */ 2136 vtfont_unref(vw->vw_font); 2137 vw->vw_font = vtfont_ref(vf); 2138 } 2139 2140 /* 2141 * Compute the drawable area and move the mouse cursor inside 2142 * it, in case the new area is smaller than the previous one. 2143 */ 2144 vt_compute_drawable_area(vw); 2145 vd->vd_mx = min(vd->vd_mx, 2146 vw->vw_draw_area.tr_end.tp_col - 2147 vw->vw_draw_area.tr_begin.tp_col - 1); 2148 vd->vd_my = min(vd->vd_my, 2149 vw->vw_draw_area.tr_end.tp_row - 2150 vw->vw_draw_area.tr_begin.tp_row - 1); 2151 2152 /* Force a full redraw the next timer tick. */ 2153 if (vd->vd_curwindow == vw) { 2154 vd->vd_flags |= VDF_INVALID; 2155 vt_resume_flush_timer(vw, 0); 2156 } 2157 vw->vw_flags &= ~VWF_BUSY; 2158 VT_UNLOCK(vd); 2159 return (0); 2160 } 2161 2162 static int 2163 vt_proc_alive(struct vt_window *vw) 2164 { 2165 struct proc *p; 2166 2167 if (vw->vw_smode.mode != VT_PROCESS) 2168 return (FALSE); 2169 2170 if (vw->vw_proc) { 2171 if ((p = pfind(vw->vw_pid)) != NULL) 2172 PROC_UNLOCK(p); 2173 if (vw->vw_proc == p) 2174 return (TRUE); 2175 vw->vw_proc = NULL; 2176 vw->vw_smode.mode = VT_AUTO; 2177 DPRINTF(1, "vt controlling process %d died\n", vw->vw_pid); 2178 vw->vw_pid = 0; 2179 } 2180 return (FALSE); 2181 } 2182 2183 static int 2184 signal_vt_rel(struct vt_window *vw) 2185 { 2186 2187 if (vw->vw_smode.mode != VT_PROCESS) 2188 return (FALSE); 2189 if (vw->vw_proc == NULL || vt_proc_alive(vw) == FALSE) { 2190 vw->vw_proc = NULL; 2191 vw->vw_pid = 0; 2192 return (TRUE); 2193 } 2194 vw->vw_flags |= VWF_SWWAIT_REL; 2195 PROC_LOCK(vw->vw_proc); 2196 kern_psignal(vw->vw_proc, vw->vw_smode.relsig); 2197 PROC_UNLOCK(vw->vw_proc); 2198 DPRINTF(1, "sending relsig to %d\n", vw->vw_pid); 2199 return (TRUE); 2200 } 2201 2202 static int 2203 signal_vt_acq(struct vt_window *vw) 2204 { 2205 2206 if (vw->vw_smode.mode != VT_PROCESS) 2207 return (FALSE); 2208 if (vw == vw->vw_device->vd_windows[VT_CONSWINDOW]) 2209 cnavailable(vw->vw_terminal->consdev, FALSE); 2210 if (vw->vw_proc == NULL || vt_proc_alive(vw) == FALSE) { 2211 vw->vw_proc = NULL; 2212 vw->vw_pid = 0; 2213 return (TRUE); 2214 } 2215 vw->vw_flags |= VWF_SWWAIT_ACQ; 2216 PROC_LOCK(vw->vw_proc); 2217 kern_psignal(vw->vw_proc, vw->vw_smode.acqsig); 2218 PROC_UNLOCK(vw->vw_proc); 2219 DPRINTF(1, "sending acqsig to %d\n", vw->vw_pid); 2220 return (TRUE); 2221 } 2222 2223 static int 2224 finish_vt_rel(struct vt_window *vw, int release, int *s) 2225 { 2226 2227 if (vw->vw_flags & VWF_SWWAIT_REL) { 2228 vw->vw_flags &= ~VWF_SWWAIT_REL; 2229 if (release) { 2230 taskqueue_drain_timeout(taskqueue_thread, &vw->vw_timeout_task_dead); 2231 (void)vt_late_window_switch(vw->vw_switch_to); 2232 } 2233 return (0); 2234 } 2235 return (EINVAL); 2236 } 2237 2238 static int 2239 finish_vt_acq(struct vt_window *vw) 2240 { 2241 2242 if (vw->vw_flags & VWF_SWWAIT_ACQ) { 2243 vw->vw_flags &= ~VWF_SWWAIT_ACQ; 2244 return (0); 2245 } 2246 return (EINVAL); 2247 } 2248 2249 #ifndef SC_NO_CUTPASTE 2250 static void 2251 vt_mouse_terminput_button(struct vt_device *vd, int button) 2252 { 2253 struct vt_window *vw; 2254 struct vt_font *vf; 2255 char mouseb[6] = "\x1B[M"; 2256 int i, x, y; 2257 2258 vw = vd->vd_curwindow; 2259 vf = vw->vw_font; 2260 2261 /* Translate to char position. */ 2262 x = vd->vd_mx / vf->vf_width; 2263 y = vd->vd_my / vf->vf_height; 2264 /* Avoid overflow. */ 2265 x = MIN(x, 255 - '!'); 2266 y = MIN(y, 255 - '!'); 2267 2268 mouseb[3] = ' ' + button; 2269 mouseb[4] = '!' + x; 2270 mouseb[5] = '!' + y; 2271 2272 for (i = 0; i < sizeof(mouseb); i++) 2273 terminal_input_char(vw->vw_terminal, mouseb[i]); 2274 } 2275 2276 static void 2277 vt_mouse_terminput(struct vt_device *vd, int type, int x, int y, int event, 2278 int cnt) 2279 { 2280 2281 switch (type) { 2282 case MOUSE_BUTTON_EVENT: 2283 if (cnt > 0) { 2284 /* Mouse button pressed. */ 2285 if (event & MOUSE_BUTTON1DOWN) 2286 vt_mouse_terminput_button(vd, 0); 2287 if (event & MOUSE_BUTTON2DOWN) 2288 vt_mouse_terminput_button(vd, 1); 2289 if (event & MOUSE_BUTTON3DOWN) 2290 vt_mouse_terminput_button(vd, 2); 2291 } else { 2292 /* Mouse button released. */ 2293 vt_mouse_terminput_button(vd, 3); 2294 } 2295 break; 2296 #ifdef notyet 2297 case MOUSE_MOTION_EVENT: 2298 if (mouse->u.data.z < 0) { 2299 /* Scroll up. */ 2300 sc_mouse_input_button(vd, 64); 2301 } else if (mouse->u.data.z > 0) { 2302 /* Scroll down. */ 2303 sc_mouse_input_button(vd, 65); 2304 } 2305 break; 2306 #endif 2307 } 2308 } 2309 2310 static void 2311 vt_mouse_paste(void) 2312 { 2313 term_char_t *buf; 2314 int i, len; 2315 2316 len = VD_PASTEBUFLEN(main_vd); 2317 buf = VD_PASTEBUF(main_vd); 2318 len /= sizeof(term_char_t); 2319 for (i = 0; i < len; i++) { 2320 if (TCHAR_CHARACTER(buf[i]) == '\0') 2321 continue; 2322 terminal_input_char(main_vd->vd_curwindow->vw_terminal, 2323 buf[i]); 2324 } 2325 } 2326 2327 void 2328 vt_mouse_event(int type, int x, int y, int event, int cnt, int mlevel) 2329 { 2330 struct vt_device *vd; 2331 struct vt_window *vw; 2332 struct vt_font *vf; 2333 term_pos_t size; 2334 int len, mark; 2335 2336 vd = main_vd; 2337 vw = vd->vd_curwindow; 2338 vf = vw->vw_font; 2339 2340 if (vw->vw_flags & (VWF_MOUSE_HIDE | VWF_GRAPHICS)) 2341 /* 2342 * Either the mouse is disabled, or the window is in 2343 * "graphics mode". The graphics mode is usually set by 2344 * an X server, using the KDSETMODE ioctl. 2345 */ 2346 return; 2347 2348 if (vf == NULL) /* Text mode. */ 2349 return; 2350 2351 /* 2352 * TODO: add flag about pointer position changed, to not redraw chars 2353 * under mouse pointer when nothing changed. 2354 */ 2355 2356 if (vw->vw_mouse_level > 0) 2357 vt_mouse_terminput(vd, type, x, y, event, cnt); 2358 2359 switch (type) { 2360 case MOUSE_ACTION: 2361 case MOUSE_MOTION_EVENT: 2362 /* Movement */ 2363 x += vd->vd_mx; 2364 y += vd->vd_my; 2365 2366 vt_termsize(vd, vf, &size); 2367 2368 /* Apply limits. */ 2369 x = MAX(x, 0); 2370 y = MAX(y, 0); 2371 x = MIN(x, (size.tp_col * vf->vf_width) - 1); 2372 y = MIN(y, (size.tp_row * vf->vf_height) - 1); 2373 2374 vd->vd_mx = x; 2375 vd->vd_my = y; 2376 if (vd->vd_mstate & (MOUSE_BUTTON1DOWN | VT_MOUSE_EXTENDBUTTON)) 2377 vtbuf_set_mark(&vw->vw_buf, VTB_MARK_MOVE, 2378 vd->vd_mx / vf->vf_width, 2379 vd->vd_my / vf->vf_height); 2380 2381 vt_resume_flush_timer(vw, 0); 2382 return; /* Done */ 2383 case MOUSE_BUTTON_EVENT: 2384 /* Buttons */ 2385 break; 2386 default: 2387 return; /* Done */ 2388 } 2389 2390 switch (event) { 2391 case MOUSE_BUTTON1DOWN: 2392 switch (cnt % 4) { 2393 case 0: /* up */ 2394 mark = VTB_MARK_END; 2395 break; 2396 case 1: /* single click: start cut operation */ 2397 mark = VTB_MARK_START; 2398 break; 2399 case 2: /* double click: cut a word */ 2400 mark = VTB_MARK_WORD; 2401 break; 2402 default: /* triple click: cut a line */ 2403 mark = VTB_MARK_ROW; 2404 break; 2405 } 2406 break; 2407 case VT_MOUSE_PASTEBUTTON: 2408 switch (cnt) { 2409 case 0: /* up */ 2410 break; 2411 default: 2412 vt_mouse_paste(); 2413 /* clear paste buffer selection after paste */ 2414 vtbuf_set_mark(&vw->vw_buf, VTB_MARK_START, 2415 vd->vd_mx / vf->vf_width, 2416 vd->vd_my / vf->vf_height); 2417 break; 2418 } 2419 return; /* Done */ 2420 case VT_MOUSE_EXTENDBUTTON: 2421 switch (cnt) { 2422 case 0: /* up */ 2423 if (!(vd->vd_mstate & MOUSE_BUTTON1DOWN)) 2424 mark = VTB_MARK_EXTEND; 2425 else 2426 mark = VTB_MARK_NONE; 2427 break; 2428 default: 2429 mark = VTB_MARK_EXTEND; 2430 break; 2431 } 2432 break; 2433 default: 2434 return; /* Done */ 2435 } 2436 2437 /* Save buttons state. */ 2438 if (cnt > 0) 2439 vd->vd_mstate |= event; 2440 else 2441 vd->vd_mstate &= ~event; 2442 2443 if (vtbuf_set_mark(&vw->vw_buf, mark, vd->vd_mx / vf->vf_width, 2444 vd->vd_my / vf->vf_height) == 1) { 2445 /* 2446 * We have something marked to copy, so update pointer to 2447 * window with selection. 2448 */ 2449 vt_resume_flush_timer(vw, 0); 2450 2451 switch (mark) { 2452 case VTB_MARK_END: 2453 case VTB_MARK_WORD: 2454 case VTB_MARK_ROW: 2455 case VTB_MARK_EXTEND: 2456 break; 2457 default: 2458 /* Other types of mark do not require to copy data. */ 2459 return; 2460 } 2461 2462 /* Get current selection size in bytes. */ 2463 len = vtbuf_get_marked_len(&vw->vw_buf); 2464 if (len <= 0) 2465 return; 2466 2467 /* Reallocate buffer only if old one is too small. */ 2468 if (len > VD_PASTEBUFSZ(vd)) { 2469 VD_PASTEBUF(vd) = realloc(VD_PASTEBUF(vd), len, M_VT, 2470 M_WAITOK | M_ZERO); 2471 /* Update buffer size. */ 2472 VD_PASTEBUFSZ(vd) = len; 2473 } 2474 /* Request copy/paste buffer data, no more than `len' */ 2475 vtbuf_extract_marked(&vw->vw_buf, VD_PASTEBUF(vd), len, mark); 2476 2477 VD_PASTEBUFLEN(vd) = len; 2478 2479 /* XXX VD_PASTEBUF(vd) have to be freed on shutdown/unload. */ 2480 } 2481 } 2482 2483 void 2484 vt_mouse_state(int show) 2485 { 2486 struct vt_device *vd; 2487 struct vt_window *vw; 2488 2489 vd = main_vd; 2490 vw = vd->vd_curwindow; 2491 2492 switch (show) { 2493 case VT_MOUSE_HIDE: 2494 vw->vw_flags |= VWF_MOUSE_HIDE; 2495 break; 2496 case VT_MOUSE_SHOW: 2497 vw->vw_flags &= ~VWF_MOUSE_HIDE; 2498 break; 2499 } 2500 2501 /* Mark mouse position as dirty. */ 2502 vt_mark_mouse_position_as_dirty(vd, false); 2503 vt_resume_flush_timer(vw, 0); 2504 } 2505 #endif 2506 2507 static int 2508 vtterm_mmap(struct terminal *tm, vm_ooffset_t offset, vm_paddr_t * paddr, 2509 int nprot, vm_memattr_t *memattr) 2510 { 2511 struct vt_window *vw = tm->tm_softc; 2512 struct vt_device *vd = vw->vw_device; 2513 2514 if (vd->vd_driver->vd_fb_mmap) 2515 return (vd->vd_driver->vd_fb_mmap(vd, offset, paddr, nprot, 2516 memattr)); 2517 2518 return (ENXIO); 2519 } 2520 2521 static int 2522 vtterm_ioctl(struct terminal *tm, u_long cmd, caddr_t data, 2523 struct thread *td) 2524 { 2525 struct vt_window *vw = tm->tm_softc; 2526 struct vt_device *vd = vw->vw_device; 2527 keyboard_t *kbd; 2528 int error, i, s; 2529 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 2530 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 2531 int ival; 2532 2533 switch (cmd) { 2534 case _IO('v', 4): 2535 cmd = VT_RELDISP; 2536 break; 2537 case _IO('v', 5): 2538 cmd = VT_ACTIVATE; 2539 break; 2540 case _IO('v', 6): 2541 cmd = VT_WAITACTIVE; 2542 break; 2543 case _IO('K', 20): 2544 cmd = KDSKBSTATE; 2545 break; 2546 case _IO('K', 67): 2547 cmd = KDSETRAD; 2548 break; 2549 case _IO('K', 7): 2550 cmd = KDSKBMODE; 2551 break; 2552 case _IO('K', 8): 2553 cmd = KDMKTONE; 2554 break; 2555 case _IO('K', 10): 2556 cmd = KDSETMODE; 2557 break; 2558 case _IO('K', 13): 2559 cmd = KDSBORDER; 2560 break; 2561 case _IO('K', 63): 2562 cmd = KIOCSOUND; 2563 break; 2564 case _IO('K', 66): 2565 cmd = KDSETLED; 2566 break; 2567 case _IO('c', 104): 2568 cmd = CONS_SETWINORG; 2569 break; 2570 case _IO('c', 110): 2571 cmd = CONS_SETKBD; 2572 break; 2573 default: 2574 goto skip_thunk; 2575 } 2576 ival = IOCPARM_IVAL(data); 2577 data = (caddr_t)&ival; 2578 skip_thunk: 2579 #endif 2580 2581 switch (cmd) { 2582 case KDSETRAD: /* set keyboard repeat & delay rates (old) */ 2583 if (*(int *)data & ~0x7f) 2584 return (EINVAL); 2585 /* FALLTHROUGH */ 2586 case GIO_KEYMAP: 2587 case PIO_KEYMAP: 2588 case GIO_DEADKEYMAP: 2589 case PIO_DEADKEYMAP: 2590 #ifdef COMPAT_FREEBSD13 2591 case OGIO_DEADKEYMAP: 2592 case OPIO_DEADKEYMAP: 2593 #endif /* COMPAT_FREEBSD13 */ 2594 case GETFKEY: 2595 case SETFKEY: 2596 case KDGKBINFO: 2597 case KDGKBTYPE: 2598 case KDGETREPEAT: /* get keyboard repeat & delay rates */ 2599 case KDSETREPEAT: /* set keyboard repeat & delay rates (new) */ 2600 case KBADDKBD: /* add keyboard to mux */ 2601 case KBRELKBD: { /* release keyboard from mux */ 2602 error = 0; 2603 2604 mtx_lock(&Giant); 2605 if ((kbd = vd->vd_keyboard) != NULL) 2606 error = kbdd_ioctl(kbd, cmd, data); 2607 mtx_unlock(&Giant); 2608 if (error == ENOIOCTL) { 2609 if (cmd == KDGKBTYPE) { 2610 /* always return something? XXX */ 2611 *(int *)data = 0; 2612 } else { 2613 return (ENODEV); 2614 } 2615 } 2616 return (error); 2617 } 2618 case KDGKBSTATE: { /* get keyboard state (locks) */ 2619 error = 0; 2620 2621 if (vw == vd->vd_curwindow) { 2622 mtx_lock(&Giant); 2623 if ((kbd = vd->vd_keyboard) != NULL) 2624 error = vt_save_kbd_state(vw, kbd); 2625 mtx_unlock(&Giant); 2626 2627 if (error != 0) 2628 return (error); 2629 } 2630 2631 *(int *)data = vw->vw_kbdstate & LOCK_MASK; 2632 2633 return (error); 2634 } 2635 case KDSKBSTATE: { /* set keyboard state (locks) */ 2636 int state; 2637 2638 state = *(int *)data; 2639 if (state & ~LOCK_MASK) 2640 return (EINVAL); 2641 2642 vw->vw_kbdstate &= ~LOCK_MASK; 2643 vw->vw_kbdstate |= state; 2644 2645 error = 0; 2646 if (vw == vd->vd_curwindow) { 2647 mtx_lock(&Giant); 2648 if ((kbd = vd->vd_keyboard) != NULL) 2649 error = vt_update_kbd_state(vw, kbd); 2650 mtx_unlock(&Giant); 2651 } 2652 2653 return (error); 2654 } 2655 case KDGETLED: { /* get keyboard LED status */ 2656 error = 0; 2657 2658 if (vw == vd->vd_curwindow) { 2659 mtx_lock(&Giant); 2660 if ((kbd = vd->vd_keyboard) != NULL) 2661 error = vt_save_kbd_leds(vw, kbd); 2662 mtx_unlock(&Giant); 2663 2664 if (error != 0) 2665 return (error); 2666 } 2667 2668 *(int *)data = vw->vw_kbdstate & LED_MASK; 2669 2670 return (error); 2671 } 2672 case KDSETLED: { /* set keyboard LED status */ 2673 int leds; 2674 2675 leds = *(int *)data; 2676 if (leds & ~LED_MASK) 2677 return (EINVAL); 2678 2679 vw->vw_kbdstate &= ~LED_MASK; 2680 vw->vw_kbdstate |= leds; 2681 2682 error = 0; 2683 if (vw == vd->vd_curwindow) { 2684 mtx_lock(&Giant); 2685 if ((kbd = vd->vd_keyboard) != NULL) 2686 error = vt_update_kbd_leds(vw, kbd); 2687 mtx_unlock(&Giant); 2688 } 2689 2690 return (error); 2691 } 2692 case KDGETMODE: 2693 *(int *)data = (vw->vw_flags & VWF_GRAPHICS) ? 2694 KD_GRAPHICS : KD_TEXT; 2695 return (0); 2696 case KDGKBMODE: { 2697 error = 0; 2698 2699 if (vw == vd->vd_curwindow) { 2700 mtx_lock(&Giant); 2701 if ((kbd = vd->vd_keyboard) != NULL) 2702 error = vt_save_kbd_mode(vw, kbd); 2703 mtx_unlock(&Giant); 2704 2705 if (error != 0) 2706 return (error); 2707 } 2708 2709 *(int *)data = vw->vw_kbdmode; 2710 2711 return (error); 2712 } 2713 case KDSKBMODE: { 2714 int mode; 2715 2716 mode = *(int *)data; 2717 switch (mode) { 2718 case K_XLATE: 2719 case K_RAW: 2720 case K_CODE: 2721 vw->vw_kbdmode = mode; 2722 2723 error = 0; 2724 if (vw == vd->vd_curwindow) { 2725 mtx_lock(&Giant); 2726 if ((kbd = vd->vd_keyboard) != NULL) 2727 error = vt_update_kbd_mode(vw, kbd); 2728 mtx_unlock(&Giant); 2729 } 2730 2731 return (error); 2732 default: 2733 return (EINVAL); 2734 } 2735 } 2736 case FBIOGTYPE: 2737 case FBIO_GETWINORG: /* get frame buffer window origin */ 2738 case FBIO_GETDISPSTART: /* get display start address */ 2739 case FBIO_GETLINEWIDTH: /* get scan line width in bytes */ 2740 case FBIO_BLANK: /* blank display */ 2741 case FBIO_GETRGBOFFS: /* get RGB offsets */ 2742 if (vd->vd_driver->vd_fb_ioctl) 2743 return (vd->vd_driver->vd_fb_ioctl(vd, cmd, data, td)); 2744 break; 2745 case CONS_BLANKTIME: 2746 /* XXX */ 2747 return (0); 2748 case CONS_HISTORY: 2749 if (*(int *)data < 0) 2750 return EINVAL; 2751 if (*(int *)data != vw->vw_buf.vb_history_size) 2752 vtbuf_sethistory_size(&vw->vw_buf, *(int *)data); 2753 return (0); 2754 case CONS_CLRHIST: 2755 vtbuf_clearhistory(&vw->vw_buf); 2756 /* 2757 * Invalidate the entire visible window; it is not guaranteed 2758 * that this operation will be immediately followed by a scroll 2759 * event, so it would otherwise be possible for prior artifacts 2760 * to remain visible. 2761 */ 2762 VT_LOCK(vd); 2763 if (vw == vd->vd_curwindow) { 2764 vd->vd_flags |= VDF_INVALID; 2765 vt_resume_flush_timer(vw, 0); 2766 } 2767 VT_UNLOCK(vd); 2768 return (0); 2769 case CONS_GET: 2770 /* XXX */ 2771 *(int *)data = M_CG640x480; 2772 return (0); 2773 case CONS_BELLTYPE: /* set bell type sound */ 2774 if ((*(int *)data) & CONS_QUIET_BELL) 2775 vd->vd_flags |= VDF_QUIET_BELL; 2776 else 2777 vd->vd_flags &= ~VDF_QUIET_BELL; 2778 return (0); 2779 case CONS_GETINFO: { 2780 vid_info_t *vi = (vid_info_t *)data; 2781 if (vi->size != sizeof(struct vid_info)) 2782 return (EINVAL); 2783 2784 if (vw == vd->vd_curwindow) { 2785 mtx_lock(&Giant); 2786 if ((kbd = vd->vd_keyboard) != NULL) 2787 vt_save_kbd_state(vw, kbd); 2788 mtx_unlock(&Giant); 2789 } 2790 2791 vi->m_num = vd->vd_curwindow->vw_number + 1; 2792 vi->mk_keylock = vw->vw_kbdstate & LOCK_MASK; 2793 /* XXX: other fields! */ 2794 return (0); 2795 } 2796 case CONS_GETVERS: 2797 *(int *)data = 0x200; 2798 return (0); 2799 case CONS_MODEINFO: 2800 /* XXX */ 2801 return (0); 2802 case CONS_MOUSECTL: { 2803 mouse_info_t *mouse = (mouse_info_t*)data; 2804 2805 /* 2806 * All the commands except MOUSE_SHOW nd MOUSE_HIDE 2807 * should not be applied to individual TTYs, but only to 2808 * consolectl. 2809 */ 2810 switch (mouse->operation) { 2811 case MOUSE_HIDE: 2812 if (vd->vd_flags & VDF_MOUSECURSOR) { 2813 vd->vd_flags &= ~VDF_MOUSECURSOR; 2814 #ifndef SC_NO_CUTPASTE 2815 vt_mouse_state(VT_MOUSE_HIDE); 2816 #endif 2817 } 2818 return (0); 2819 case MOUSE_SHOW: 2820 if (!(vd->vd_flags & VDF_MOUSECURSOR)) { 2821 vd->vd_flags |= VDF_MOUSECURSOR; 2822 vd->vd_mx = vd->vd_width / 2; 2823 vd->vd_my = vd->vd_height / 2; 2824 #ifndef SC_NO_CUTPASTE 2825 vt_mouse_state(VT_MOUSE_SHOW); 2826 #endif 2827 } 2828 return (0); 2829 default: 2830 return (EINVAL); 2831 } 2832 } 2833 case PIO_VFONT: { 2834 struct vt_font *vf; 2835 2836 if (vd->vd_flags & VDF_TEXTMODE) 2837 return (ENOTSUP); 2838 2839 error = vtfont_load((void *)data, &vf); 2840 if (error != 0) 2841 return (error); 2842 2843 error = vt_change_font(vw, vf); 2844 vtfont_unref(vf); 2845 return (error); 2846 } 2847 case PIO_VFONT_DEFAULT: { 2848 /* Reset to default font. */ 2849 error = vt_change_font(vw, vt_font_assigned); 2850 return (error); 2851 } 2852 case GIO_SCRNMAP: { 2853 scrmap_t *sm = (scrmap_t *)data; 2854 2855 /* We don't have screen maps, so return a handcrafted one. */ 2856 for (i = 0; i < 256; i++) 2857 sm->scrmap[i] = i; 2858 return (0); 2859 } 2860 case KDSETMODE: 2861 /* 2862 * FIXME: This implementation is incomplete compared to 2863 * syscons. 2864 */ 2865 switch (*(int *)data) { 2866 case KD_TEXT: 2867 case KD_TEXT1: 2868 case KD_PIXEL: 2869 vw->vw_flags &= ~VWF_GRAPHICS; 2870 break; 2871 case KD_GRAPHICS: 2872 vw->vw_flags |= VWF_GRAPHICS; 2873 break; 2874 } 2875 return (0); 2876 case KDENABIO: /* allow io operations */ 2877 error = priv_check(td, PRIV_IO); 2878 if (error != 0) 2879 return (error); 2880 error = securelevel_gt(td->td_ucred, 0); 2881 if (error != 0) 2882 return (error); 2883 #if defined(__i386__) 2884 td->td_frame->tf_eflags |= PSL_IOPL; 2885 #elif defined(__amd64__) 2886 td->td_frame->tf_rflags |= PSL_IOPL; 2887 #endif 2888 return (0); 2889 case KDDISABIO: /* disallow io operations (default) */ 2890 #if defined(__i386__) 2891 td->td_frame->tf_eflags &= ~PSL_IOPL; 2892 #elif defined(__amd64__) 2893 td->td_frame->tf_rflags &= ~PSL_IOPL; 2894 #endif 2895 return (0); 2896 case KDMKTONE: /* sound the bell */ 2897 vtterm_beep(tm, *(u_int *)data); 2898 return (0); 2899 case KIOCSOUND: /* make tone (*data) hz */ 2900 /* TODO */ 2901 return (0); 2902 case CONS_SETKBD: /* set the new keyboard */ 2903 mtx_lock(&Giant); 2904 error = 0; 2905 if (vd->vd_keyboard == NULL || 2906 vd->vd_keyboard->kb_index != *(int *)data) { 2907 kbd = kbd_get_keyboard(*(int *)data); 2908 if (kbd == NULL) { 2909 mtx_unlock(&Giant); 2910 return (EINVAL); 2911 } 2912 i = kbd_allocate(kbd->kb_name, kbd->kb_unit, 2913 (void *)vd, vt_kbdevent, vd); 2914 if (i >= 0) { 2915 if ((kbd = vd->vd_keyboard) != NULL) { 2916 vt_save_kbd_state(vd->vd_curwindow, kbd); 2917 kbd_release(kbd, (void *)vd); 2918 } 2919 kbd = vd->vd_keyboard = kbd_get_keyboard(i); 2920 2921 vt_update_kbd_mode(vd->vd_curwindow, kbd); 2922 vt_update_kbd_state(vd->vd_curwindow, kbd); 2923 } else { 2924 error = EPERM; /* XXX */ 2925 } 2926 } 2927 mtx_unlock(&Giant); 2928 return (error); 2929 case CONS_RELKBD: /* release the current keyboard */ 2930 mtx_lock(&Giant); 2931 error = 0; 2932 if ((kbd = vd->vd_keyboard) != NULL) { 2933 vt_save_kbd_state(vd->vd_curwindow, kbd); 2934 error = kbd_release(kbd, (void *)vd); 2935 if (error == 0) { 2936 vd->vd_keyboard = NULL; 2937 } 2938 } 2939 mtx_unlock(&Giant); 2940 return (error); 2941 case VT_ACTIVATE: { 2942 int win; 2943 win = *(int *)data - 1; 2944 DPRINTF(5, "%s%d: VT_ACTIVATE ttyv%d ", SC_DRIVER_NAME, 2945 VT_UNIT(vw), win); 2946 if ((win >= VT_MAXWINDOWS) || (win < 0)) 2947 return (EINVAL); 2948 return (vt_proc_window_switch(vd->vd_windows[win])); 2949 } 2950 case VT_GETACTIVE: 2951 *(int *)data = vd->vd_curwindow->vw_number + 1; 2952 return (0); 2953 case VT_GETINDEX: 2954 *(int *)data = vw->vw_number + 1; 2955 return (0); 2956 case VT_LOCKSWITCH: 2957 /* TODO: Check current state, switching can be in progress. */ 2958 if ((*(int *)data) == 0x01) 2959 vw->vw_flags |= VWF_VTYLOCK; 2960 else if ((*(int *)data) == 0x02) 2961 vw->vw_flags &= ~VWF_VTYLOCK; 2962 else 2963 return (EINVAL); 2964 return (0); 2965 case VT_OPENQRY: 2966 VT_LOCK(vd); 2967 for (i = 0; i < VT_MAXWINDOWS; i++) { 2968 vw = vd->vd_windows[i]; 2969 if (vw == NULL) 2970 continue; 2971 if (!(vw->vw_flags & VWF_OPENED)) { 2972 *(int *)data = vw->vw_number + 1; 2973 VT_UNLOCK(vd); 2974 return (0); 2975 } 2976 } 2977 VT_UNLOCK(vd); 2978 return (EINVAL); 2979 case VT_WAITACTIVE: { 2980 unsigned int idx; 2981 2982 error = 0; 2983 2984 idx = *(unsigned int *)data; 2985 if (idx > VT_MAXWINDOWS) 2986 return (EINVAL); 2987 if (idx > 0) 2988 vw = vd->vd_windows[idx - 1]; 2989 2990 VT_LOCK(vd); 2991 while (vd->vd_curwindow != vw && error == 0) 2992 error = cv_wait_sig(&vd->vd_winswitch, &vd->vd_lock); 2993 VT_UNLOCK(vd); 2994 return (error); 2995 } 2996 case VT_SETMODE: { /* set screen switcher mode */ 2997 struct vt_mode *mode; 2998 struct proc *p1; 2999 3000 mode = (struct vt_mode *)data; 3001 DPRINTF(5, "%s%d: VT_SETMODE ", SC_DRIVER_NAME, VT_UNIT(vw)); 3002 if (vw->vw_smode.mode == VT_PROCESS) { 3003 p1 = pfind(vw->vw_pid); 3004 if (vw->vw_proc == p1 && vw->vw_proc != td->td_proc) { 3005 if (p1) 3006 PROC_UNLOCK(p1); 3007 DPRINTF(5, "error EPERM\n"); 3008 return (EPERM); 3009 } 3010 if (p1) 3011 PROC_UNLOCK(p1); 3012 } 3013 if (mode->mode == VT_AUTO) { 3014 vw->vw_smode.mode = VT_AUTO; 3015 vw->vw_proc = NULL; 3016 vw->vw_pid = 0; 3017 DPRINTF(5, "VT_AUTO, "); 3018 if (vw == vw->vw_device->vd_windows[VT_CONSWINDOW]) 3019 cnavailable(vw->vw_terminal->consdev, TRUE); 3020 /* were we in the middle of the vty switching process? */ 3021 if (finish_vt_rel(vw, TRUE, &s) == 0) 3022 DPRINTF(5, "reset WAIT_REL, "); 3023 if (finish_vt_acq(vw) == 0) 3024 DPRINTF(5, "reset WAIT_ACQ, "); 3025 return (0); 3026 } else if (mode->mode == VT_PROCESS) { 3027 if (!ISSIGVALID(mode->relsig) || 3028 !ISSIGVALID(mode->acqsig) || 3029 !ISSIGVALID(mode->frsig)) { 3030 DPRINTF(5, "error EINVAL\n"); 3031 return (EINVAL); 3032 } 3033 DPRINTF(5, "VT_PROCESS %d, ", td->td_proc->p_pid); 3034 bcopy(data, &vw->vw_smode, sizeof(struct vt_mode)); 3035 vw->vw_proc = td->td_proc; 3036 vw->vw_pid = vw->vw_proc->p_pid; 3037 if (vw == vw->vw_device->vd_windows[VT_CONSWINDOW]) 3038 cnavailable(vw->vw_terminal->consdev, FALSE); 3039 } else { 3040 DPRINTF(5, "VT_SETMODE failed, unknown mode %d\n", 3041 mode->mode); 3042 return (EINVAL); 3043 } 3044 DPRINTF(5, "\n"); 3045 return (0); 3046 } 3047 case VT_GETMODE: /* get screen switcher mode */ 3048 bcopy(&vw->vw_smode, data, sizeof(struct vt_mode)); 3049 return (0); 3050 3051 case VT_RELDISP: /* screen switcher ioctl */ 3052 /* 3053 * This must be the current vty which is in the VT_PROCESS 3054 * switching mode... 3055 */ 3056 if ((vw != vd->vd_curwindow) || (vw->vw_smode.mode != 3057 VT_PROCESS)) { 3058 return (EINVAL); 3059 } 3060 /* ...and this process is controlling it. */ 3061 if (vw->vw_proc != td->td_proc) { 3062 return (EPERM); 3063 } 3064 error = EINVAL; 3065 switch(*(int *)data) { 3066 case VT_FALSE: /* user refuses to release screen, abort */ 3067 if ((error = finish_vt_rel(vw, FALSE, &s)) == 0) 3068 DPRINTF(5, "%s%d: VT_RELDISP: VT_FALSE\n", 3069 SC_DRIVER_NAME, VT_UNIT(vw)); 3070 break; 3071 case VT_TRUE: /* user has released screen, go on */ 3072 /* finish_vt_rel(..., TRUE, ...) should not be locked */ 3073 if (vw->vw_flags & VWF_SWWAIT_REL) { 3074 if ((error = finish_vt_rel(vw, TRUE, &s)) == 0) 3075 DPRINTF(5, "%s%d: VT_RELDISP: VT_TRUE\n", 3076 SC_DRIVER_NAME, VT_UNIT(vw)); 3077 } else { 3078 error = EINVAL; 3079 } 3080 return (error); 3081 case VT_ACKACQ: /* acquire acknowledged, switch completed */ 3082 if ((error = finish_vt_acq(vw)) == 0) 3083 DPRINTF(5, "%s%d: VT_RELDISP: VT_ACKACQ\n", 3084 SC_DRIVER_NAME, VT_UNIT(vw)); 3085 break; 3086 default: 3087 break; 3088 } 3089 return (error); 3090 } 3091 3092 return (ENOIOCTL); 3093 } 3094 3095 static struct vt_window * 3096 vt_allocate_window(struct vt_device *vd, unsigned int window) 3097 { 3098 struct vt_window *vw; 3099 struct terminal *tm; 3100 term_pos_t size; 3101 struct winsize wsz; 3102 3103 vw = malloc(sizeof *vw, M_VT, M_WAITOK|M_ZERO); 3104 vw->vw_device = vd; 3105 vw->vw_number = window; 3106 vw->vw_kbdmode = K_XLATE; 3107 3108 if ((vd->vd_flags & VDF_TEXTMODE) == 0) { 3109 vw->vw_font = vtfont_ref(vt_font_assigned); 3110 vt_compute_drawable_area(vw); 3111 } 3112 3113 vt_termsize(vd, vw->vw_font, &size); 3114 vt_winsize(vd, vw->vw_font, &wsz); 3115 tm = vw->vw_terminal = terminal_alloc(&vt_termclass, vw); 3116 vw->vw_buf.vb_terminal = tm; /* must be set before vtbuf_init() */ 3117 vtbuf_init(&vw->vw_buf, &size); 3118 3119 terminal_set_winsize(tm, &wsz); 3120 vd->vd_windows[window] = vw; 3121 TIMEOUT_TASK_INIT(taskqueue_thread, &vw->vw_timeout_task_dead, 0, &vt_switch_timer, vw); 3122 3123 return (vw); 3124 } 3125 3126 void 3127 vt_upgrade(struct vt_device *vd) 3128 { 3129 struct vt_window *vw; 3130 unsigned int i; 3131 int register_handlers; 3132 3133 if (!vty_enabled(VTY_VT)) 3134 return; 3135 if (main_vd->vd_driver == NULL) 3136 return; 3137 3138 for (i = 0; i < VT_MAXWINDOWS; i++) { 3139 vw = vd->vd_windows[i]; 3140 if (vw == NULL) { 3141 /* New window. */ 3142 vw = vt_allocate_window(vd, i); 3143 } 3144 if (!(vw->vw_flags & VWF_READY)) { 3145 TIMEOUT_TASK_INIT(taskqueue_thread, &vw->vw_timeout_task_dead, 0, &vt_switch_timer, vw); 3146 terminal_maketty(vw->vw_terminal, "v%r", VT_UNIT(vw)); 3147 vw->vw_flags |= VWF_READY; 3148 if (vw->vw_flags & VWF_CONSOLE) { 3149 /* For existing console window. */ 3150 EVENTHANDLER_REGISTER(shutdown_pre_sync, 3151 vt_window_switch, vw, SHUTDOWN_PRI_DEFAULT); 3152 } 3153 } 3154 } 3155 VT_LOCK(vd); 3156 if (vd->vd_curwindow == NULL) 3157 vd->vd_curwindow = vd->vd_windows[VT_CONSWINDOW]; 3158 3159 register_handlers = 0; 3160 if (!(vd->vd_flags & VDF_ASYNC)) { 3161 /* Attach keyboard. */ 3162 vt_allocate_keyboard(vd); 3163 3164 /* Init 25 Hz timer. */ 3165 callout_init_mtx(&vd->vd_timer, &vd->vd_lock, 0); 3166 3167 /* 3168 * Start timer when everything ready. 3169 * Note that the operations here are purposefully ordered. 3170 * We need to ensure vd_timer_armed is non-zero before we set 3171 * the VDF_ASYNC flag. That prevents this function from 3172 * racing with vt_resume_flush_timer() to update the 3173 * callout structure. 3174 */ 3175 atomic_add_acq_int(&vd->vd_timer_armed, 1); 3176 vd->vd_flags |= VDF_ASYNC; 3177 callout_reset(&vd->vd_timer, hz / VT_TIMERFREQ, vt_timer, vd); 3178 register_handlers = 1; 3179 } 3180 3181 VT_UNLOCK(vd); 3182 3183 /* Refill settings with new sizes. */ 3184 vt_resize(vd); 3185 3186 if (register_handlers) { 3187 /* Register suspend/resume handlers. */ 3188 EVENTHANDLER_REGISTER(power_suspend_early, vt_suspend_handler, 3189 vd, EVENTHANDLER_PRI_ANY); 3190 EVENTHANDLER_REGISTER(power_resume, vt_resume_handler, vd, 3191 EVENTHANDLER_PRI_ANY); 3192 } 3193 } 3194 3195 static void 3196 vt_resize(struct vt_device *vd) 3197 { 3198 struct vt_window *vw; 3199 int i; 3200 3201 for (i = 0; i < VT_MAXWINDOWS; i++) { 3202 vw = vd->vd_windows[i]; 3203 VT_LOCK(vd); 3204 /* Assign default font to window, if not textmode. */ 3205 if (!(vd->vd_flags & VDF_TEXTMODE) && vw->vw_font == NULL) 3206 vw->vw_font = vtfont_ref(vt_font_assigned); 3207 VT_UNLOCK(vd); 3208 3209 /* Resize terminal windows */ 3210 while (vt_change_font(vw, vw->vw_font) == EBUSY) { 3211 DPRINTF(100, "%s: vt_change_font() is busy, " 3212 "window %d\n", __func__, i); 3213 } 3214 } 3215 } 3216 3217 static void 3218 vt_replace_backend(const struct vt_driver *drv, void *softc) 3219 { 3220 struct vt_device *vd; 3221 3222 vd = main_vd; 3223 3224 if (vd->vd_flags & VDF_ASYNC) { 3225 /* Stop vt_flush periodic task. */ 3226 VT_LOCK(vd); 3227 vt_suspend_flush_timer(vd); 3228 VT_UNLOCK(vd); 3229 /* 3230 * Mute current terminal until we done. vt_change_font (called 3231 * from vt_resize) will unmute it. 3232 */ 3233 terminal_mute(vd->vd_curwindow->vw_terminal, 1); 3234 } 3235 3236 /* 3237 * Reset VDF_TEXTMODE flag, driver who require that flag (vt_vga) will 3238 * set it. 3239 */ 3240 VT_LOCK(vd); 3241 vd->vd_flags &= ~VDF_TEXTMODE; 3242 3243 if (drv != NULL) { 3244 /* 3245 * We want to upgrade from the current driver to the 3246 * given driver. 3247 */ 3248 3249 vd->vd_prev_driver = vd->vd_driver; 3250 vd->vd_prev_softc = vd->vd_softc; 3251 vd->vd_driver = drv; 3252 vd->vd_softc = softc; 3253 3254 vd->vd_driver->vd_init(vd); 3255 } else if (vd->vd_prev_driver != NULL && vd->vd_prev_softc != NULL) { 3256 /* 3257 * No driver given: we want to downgrade to the previous 3258 * driver. 3259 */ 3260 const struct vt_driver *old_drv; 3261 void *old_softc; 3262 3263 old_drv = vd->vd_driver; 3264 old_softc = vd->vd_softc; 3265 3266 vd->vd_driver = vd->vd_prev_driver; 3267 vd->vd_softc = vd->vd_prev_softc; 3268 vd->vd_prev_driver = NULL; 3269 vd->vd_prev_softc = NULL; 3270 3271 vd->vd_flags |= VDF_DOWNGRADE; 3272 3273 vd->vd_driver->vd_init(vd); 3274 3275 if (old_drv->vd_fini) 3276 old_drv->vd_fini(vd, old_softc); 3277 3278 vd->vd_flags &= ~VDF_DOWNGRADE; 3279 } 3280 3281 VT_UNLOCK(vd); 3282 3283 /* Update windows sizes and initialize last items. */ 3284 vt_upgrade(vd); 3285 3286 /* 3287 * Give a chance to the new backend to run the post-switch code, for 3288 * instance to refresh the screen. 3289 */ 3290 if (vd->vd_driver->vd_postswitch) 3291 vd->vd_driver->vd_postswitch(vd); 3292 3293 #ifdef DEV_SPLASH 3294 if (vd->vd_flags & VDF_SPLASH) 3295 vtterm_splash(vd); 3296 #endif 3297 3298 if (vd->vd_flags & VDF_ASYNC) { 3299 /* Allow to put chars now. */ 3300 terminal_mute(vd->vd_curwindow->vw_terminal, 0); 3301 /* Rerun timer for screen updates. */ 3302 vt_resume_flush_timer(vd->vd_curwindow, 0); 3303 } 3304 3305 /* 3306 * Register as console. If it already registered, cnadd() will ignore 3307 * it. 3308 */ 3309 termcn_cnregister(vd->vd_windows[VT_CONSWINDOW]->vw_terminal); 3310 } 3311 3312 static void 3313 vt_suspend_handler(void *priv) 3314 { 3315 struct vt_device *vd; 3316 3317 vd = priv; 3318 vd->vd_flags |= VDF_SUSPENDED; 3319 if (vd->vd_driver != NULL && vd->vd_driver->vd_suspend != NULL) 3320 vd->vd_driver->vd_suspend(vd); 3321 } 3322 3323 static void 3324 vt_resume_handler(void *priv) 3325 { 3326 struct vt_device *vd; 3327 3328 vd = priv; 3329 if (vd->vd_driver != NULL && vd->vd_driver->vd_resume != NULL) 3330 vd->vd_driver->vd_resume(vd); 3331 vd->vd_flags &= ~VDF_SUSPENDED; 3332 } 3333 3334 int 3335 vt_allocate(const struct vt_driver *drv, void *softc) 3336 { 3337 3338 if (!vty_enabled(VTY_VT)) 3339 return (EINVAL); 3340 3341 if (main_vd->vd_driver == NULL) { 3342 main_vd->vd_driver = drv; 3343 printf("VT: initialize with new VT driver \"%s\".\n", 3344 drv->vd_name); 3345 } else { 3346 /* 3347 * Check if have rights to replace current driver. For example: 3348 * it is bad idea to replace KMS driver with generic VGA one. 3349 */ 3350 if (drv->vd_priority <= main_vd->vd_driver->vd_priority) { 3351 printf("VT: Driver priority %d too low. Current %d\n ", 3352 drv->vd_priority, main_vd->vd_driver->vd_priority); 3353 return (EEXIST); 3354 } 3355 printf("VT: Replacing driver \"%s\" with new \"%s\".\n", 3356 main_vd->vd_driver->vd_name, drv->vd_name); 3357 } 3358 3359 vt_replace_backend(drv, softc); 3360 3361 return (0); 3362 } 3363 3364 int 3365 vt_deallocate(const struct vt_driver *drv, void *softc) 3366 { 3367 3368 if (!vty_enabled(VTY_VT)) 3369 return (EINVAL); 3370 3371 if (main_vd->vd_prev_driver == NULL || 3372 main_vd->vd_driver != drv || 3373 main_vd->vd_softc != softc) 3374 return (EPERM); 3375 3376 printf("VT: Switching back from \"%s\" to \"%s\".\n", 3377 main_vd->vd_driver->vd_name, main_vd->vd_prev_driver->vd_name); 3378 3379 vt_replace_backend(NULL, NULL); 3380 3381 return (0); 3382 } 3383 3384 void 3385 vt_suspend(struct vt_device *vd) 3386 { 3387 int error; 3388 3389 if (vt_suspendswitch == 0) 3390 return; 3391 /* Save current window. */ 3392 vd->vd_savedwindow = vd->vd_curwindow; 3393 /* Ask holding process to free window and switch to console window */ 3394 vt_proc_window_switch(vd->vd_windows[VT_CONSWINDOW]); 3395 3396 /* Wait for the window switch to complete. */ 3397 error = 0; 3398 VT_LOCK(vd); 3399 while (vd->vd_curwindow != vd->vd_windows[VT_CONSWINDOW] && error == 0) 3400 error = cv_wait_sig(&vd->vd_winswitch, &vd->vd_lock); 3401 VT_UNLOCK(vd); 3402 } 3403 3404 void 3405 vt_resume(struct vt_device *vd) 3406 { 3407 3408 if (vt_suspendswitch == 0) 3409 return; 3410 /* Switch back to saved window, if any */ 3411 vt_proc_window_switch(vd->vd_savedwindow); 3412 vd->vd_savedwindow = NULL; 3413 } 3414