vt_core.c revision 303312
1/*- 2 * Copyright (c) 2009, 2013 The FreeBSD Foundation 3 * All rights reserved. 4 * 5 * This software was developed by Ed Schouten under sponsorship from the 6 * FreeBSD Foundation. 7 * 8 * Portions of this software were developed by Oleksandr Rybalko 9 * under sponsorship from the FreeBSD Foundation. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33#include <sys/cdefs.h> 34__FBSDID("$FreeBSD: stable/11/sys/dev/vt/vt_core.c 303312 2016-07-25 17:37:02Z bdrewery $"); 35 36#include "opt_compat.h" 37 38#include <sys/param.h> 39#include <sys/consio.h> 40#include <sys/eventhandler.h> 41#include <sys/fbio.h> 42#include <sys/kbio.h> 43#include <sys/kdb.h> 44#include <sys/kernel.h> 45#include <sys/lock.h> 46#include <sys/malloc.h> 47#include <sys/mutex.h> 48#include <sys/power.h> 49#include <sys/priv.h> 50#include <sys/proc.h> 51#include <sys/random.h> 52#include <sys/reboot.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 64static tc_bell_t vtterm_bell; 65static tc_cursor_t vtterm_cursor; 66static tc_putchar_t vtterm_putchar; 67static tc_fill_t vtterm_fill; 68static tc_copy_t vtterm_copy; 69static tc_param_t vtterm_param; 70static tc_done_t vtterm_done; 71 72static tc_cnprobe_t vtterm_cnprobe; 73static tc_cngetc_t vtterm_cngetc; 74 75static tc_cngrab_t vtterm_cngrab; 76static tc_cnungrab_t vtterm_cnungrab; 77 78static tc_opened_t vtterm_opened; 79static tc_ioctl_t vtterm_ioctl; 80static tc_mmap_t vtterm_mmap; 81 82const struct terminal_class vt_termclass = { 83 .tc_bell = vtterm_bell, 84 .tc_cursor = vtterm_cursor, 85 .tc_putchar = vtterm_putchar, 86 .tc_fill = vtterm_fill, 87 .tc_copy = vtterm_copy, 88 .tc_param = vtterm_param, 89 .tc_done = vtterm_done, 90 91 .tc_cnprobe = vtterm_cnprobe, 92 .tc_cngetc = vtterm_cngetc, 93 94 .tc_cngrab = vtterm_cngrab, 95 .tc_cnungrab = vtterm_cnungrab, 96 97 .tc_opened = vtterm_opened, 98 .tc_ioctl = vtterm_ioctl, 99 .tc_mmap = vtterm_mmap, 100}; 101 102/* 103 * Use a constant timer of 25 Hz to redraw the screen. 104 * 105 * XXX: In theory we should only fire up the timer when there is really 106 * activity. Unfortunately we cannot always start timers. We really 107 * don't want to process kernel messages synchronously, because it 108 * really slows down the system. 109 */ 110#define VT_TIMERFREQ 25 111 112/* Bell pitch/duration. */ 113#define VT_BELLDURATION ((5 * hz + 99) / 100) 114#define VT_BELLPITCH 800 115 116#define VT_UNIT(vw) ((vw)->vw_device->vd_unit * VT_MAXWINDOWS + \ 117 (vw)->vw_number) 118 119static SYSCTL_NODE(_kern, OID_AUTO, vt, CTLFLAG_RD, 0, "vt(9) parameters"); 120static VT_SYSCTL_INT(enable_altgr, 1, "Enable AltGr key (Do not assume R.Alt as Alt)"); 121static VT_SYSCTL_INT(enable_bell, 1, "Enable bell"); 122static VT_SYSCTL_INT(debug, 0, "vt(9) debug level"); 123static VT_SYSCTL_INT(deadtimer, 15, "Time to wait busy process in VT_PROCESS mode"); 124static VT_SYSCTL_INT(suspendswitch, 1, "Switch to VT0 before suspend"); 125 126/* Allow to disable some keyboard combinations. */ 127static VT_SYSCTL_INT(kbd_halt, 1, "Enable halt keyboard combination. " 128 "See kbdmap(5) to configure."); 129static VT_SYSCTL_INT(kbd_poweroff, 1, "Enable Power Off keyboard combination. " 130 "See kbdmap(5) to configure."); 131static VT_SYSCTL_INT(kbd_reboot, 1, "Enable reboot keyboard combination. " 132 "See kbdmap(5) to configure (typically Ctrl-Alt-Delete)."); 133static VT_SYSCTL_INT(kbd_debug, 1, "Enable key combination to enter debugger. " 134 "See kbdmap(5) to configure (typically Ctrl-Alt-Esc)."); 135static VT_SYSCTL_INT(kbd_panic, 0, "Enable request to panic. " 136 "See kbdmap(5) to configure."); 137 138/* Used internally, not a tunable. */ 139int vt_draw_logo_cpus; 140VT_SYSCTL_INT(splash_cpu, 0, "Show logo CPUs during boot"); 141VT_SYSCTL_INT(splash_ncpu, 0, "Override number of logos displayed " 142 "(0 = do not override)"); 143VT_SYSCTL_INT(splash_cpu_style, 2, "Draw logo style " 144 "(0 = Alternate beastie, 1 = Beastie, 2 = Orb)"); 145VT_SYSCTL_INT(splash_cpu_duration, 10, "Hide logos after (seconds)"); 146 147static unsigned int vt_unit = 0; 148static MALLOC_DEFINE(M_VT, "vt", "vt device"); 149struct vt_device *main_vd = &vt_consdev; 150 151/* Boot logo. */ 152extern unsigned int vt_logo_width; 153extern unsigned int vt_logo_height; 154extern unsigned int vt_logo_depth; 155extern unsigned char vt_logo_image[]; 156#ifndef DEV_SPLASH 157#define vtterm_draw_cpu_logos(...) do {} while (0) 158const unsigned int vt_logo_sprite_height; 159#endif 160 161/* Font. */ 162extern struct vt_font vt_font_default; 163#ifndef SC_NO_CUTPASTE 164extern struct vt_mouse_cursor vt_default_mouse_pointer; 165#endif 166 167static int signal_vt_rel(struct vt_window *); 168static int signal_vt_acq(struct vt_window *); 169static int finish_vt_rel(struct vt_window *, int, int *); 170static int finish_vt_acq(struct vt_window *); 171static int vt_window_switch(struct vt_window *); 172static int vt_late_window_switch(struct vt_window *); 173static int vt_proc_alive(struct vt_window *); 174static void vt_resize(struct vt_device *); 175static void vt_update_static(void *); 176#ifndef SC_NO_CUTPASTE 177static void vt_mouse_paste(void); 178#endif 179static void vt_suspend_handler(void *priv); 180static void vt_resume_handler(void *priv); 181 182SET_DECLARE(vt_drv_set, struct vt_driver); 183 184#define _VTDEFH MAX(100, PIXEL_HEIGHT(VT_FB_MAX_HEIGHT)) 185#define _VTDEFW MAX(200, PIXEL_WIDTH(VT_FB_MAX_WIDTH)) 186 187struct terminal vt_consterm; 188static struct vt_window vt_conswindow; 189struct vt_device vt_consdev = { 190 .vd_driver = NULL, 191 .vd_softc = NULL, 192 .vd_prev_driver = NULL, 193 .vd_prev_softc = NULL, 194 .vd_flags = VDF_INVALID, 195 .vd_windows = { [VT_CONSWINDOW] = &vt_conswindow, }, 196 .vd_curwindow = &vt_conswindow, 197 .vd_kbstate = 0, 198 199#ifndef SC_NO_CUTPASTE 200 .vd_pastebuf = { 201 .vpb_buf = NULL, 202 .vpb_bufsz = 0, 203 .vpb_len = 0 204 }, 205 .vd_mcursor = &vt_default_mouse_pointer, 206 .vd_mcursor_fg = TC_WHITE, 207 .vd_mcursor_bg = TC_BLACK, 208#endif 209}; 210static term_char_t vt_constextbuf[(_VTDEFW) * (VBF_DEFAULT_HISTORY_SIZE)]; 211static term_char_t *vt_constextbufrows[VBF_DEFAULT_HISTORY_SIZE]; 212static struct vt_window vt_conswindow = { 213 .vw_number = VT_CONSWINDOW, 214 .vw_flags = VWF_CONSOLE, 215 .vw_buf = { 216 .vb_buffer = &vt_constextbuf[0], 217 .vb_rows = &vt_constextbufrows[0], 218 .vb_history_size = VBF_DEFAULT_HISTORY_SIZE, 219 .vb_curroffset = 0, 220 .vb_roffset = 0, 221 .vb_flags = VBF_STATIC, 222 .vb_mark_start = {.tp_row = 0, .tp_col = 0,}, 223 .vb_mark_end = {.tp_row = 0, .tp_col = 0,}, 224 .vb_scr_size = { 225 .tp_row = _VTDEFH, 226 .tp_col = _VTDEFW, 227 }, 228 }, 229 .vw_device = &vt_consdev, 230 .vw_terminal = &vt_consterm, 231 .vw_kbdmode = K_XLATE, 232 .vw_grabbed = 0, 233}; 234struct terminal vt_consterm = { 235 .tm_class = &vt_termclass, 236 .tm_softc = &vt_conswindow, 237 .tm_flags = TF_CONS, 238}; 239static struct consdev vt_consterm_consdev = { 240 .cn_ops = &termcn_cnops, 241 .cn_arg = &vt_consterm, 242 .cn_name = "ttyv0", 243}; 244 245/* Add to set of consoles. */ 246DATA_SET(cons_set, vt_consterm_consdev); 247 248/* 249 * Right after kmem is done to allow early drivers to use locking and allocate 250 * memory. 251 */ 252SYSINIT(vt_update_static, SI_SUB_KMEM, SI_ORDER_ANY, vt_update_static, 253 &vt_consdev); 254/* Delay until all devices attached, to not waste time. */ 255SYSINIT(vt_early_cons, SI_SUB_INT_CONFIG_HOOKS, SI_ORDER_ANY, vt_upgrade, 256 &vt_consdev); 257 258/* Initialize locks/mem depended members. */ 259static void 260vt_update_static(void *dummy) 261{ 262 263 if (!vty_enabled(VTY_VT)) 264 return; 265 if (main_vd->vd_driver != NULL) 266 printf("VT(%s): %s %ux%u\n", main_vd->vd_driver->vd_name, 267 (main_vd->vd_flags & VDF_TEXTMODE) ? "text" : "resolution", 268 main_vd->vd_width, main_vd->vd_height); 269 else 270 printf("VT: init without driver.\n"); 271 272 mtx_init(&main_vd->vd_lock, "vtdev", NULL, MTX_DEF); 273 cv_init(&main_vd->vd_winswitch, "vtwswt"); 274} 275 276static void 277vt_schedule_flush(struct vt_device *vd, int ms) 278{ 279 280 if (ms <= 0) 281 /* Default to initial value. */ 282 ms = 1000 / VT_TIMERFREQ; 283 284 callout_schedule(&vd->vd_timer, hz / (1000 / ms)); 285} 286 287void 288vt_resume_flush_timer(struct vt_device *vd, int ms) 289{ 290 291 if (!(vd->vd_flags & VDF_ASYNC) || 292 !atomic_cmpset_int(&vd->vd_timer_armed, 0, 1)) 293 return; 294 295 vt_schedule_flush(vd, ms); 296} 297 298static void 299vt_suspend_flush_timer(struct vt_device *vd) 300{ 301 /* 302 * As long as this function is called locked, callout_stop() 303 * has the same effect like callout_drain() with regard to 304 * preventing the callback function from executing. 305 */ 306 VT_LOCK_ASSERT(vd, MA_OWNED); 307 308 if (!(vd->vd_flags & VDF_ASYNC) || 309 !atomic_cmpset_int(&vd->vd_timer_armed, 1, 0)) 310 return; 311 312 callout_stop(&vd->vd_timer); 313} 314 315static void 316vt_switch_timer(void *arg) 317{ 318 319 vt_late_window_switch((struct vt_window *)arg); 320} 321 322static int 323vt_save_kbd_mode(struct vt_window *vw, keyboard_t *kbd) 324{ 325 int mode, ret; 326 327 mode = 0; 328 ret = kbdd_ioctl(kbd, KDGKBMODE, (caddr_t)&mode); 329 if (ret == ENOIOCTL) 330 ret = ENODEV; 331 if (ret != 0) 332 return (ret); 333 334 vw->vw_kbdmode = mode; 335 336 return (0); 337} 338 339static int 340vt_update_kbd_mode(struct vt_window *vw, keyboard_t *kbd) 341{ 342 int ret; 343 344 ret = kbdd_ioctl(kbd, KDSKBMODE, (caddr_t)&vw->vw_kbdmode); 345 if (ret == ENOIOCTL) 346 ret = ENODEV; 347 348 return (ret); 349} 350 351static int 352vt_save_kbd_state(struct vt_window *vw, keyboard_t *kbd) 353{ 354 int state, ret; 355 356 state = 0; 357 ret = kbdd_ioctl(kbd, KDGKBSTATE, (caddr_t)&state); 358 if (ret == ENOIOCTL) 359 ret = ENODEV; 360 if (ret != 0) 361 return (ret); 362 363 vw->vw_kbdstate &= ~LOCK_MASK; 364 vw->vw_kbdstate |= state & LOCK_MASK; 365 366 return (0); 367} 368 369static int 370vt_update_kbd_state(struct vt_window *vw, keyboard_t *kbd) 371{ 372 int state, ret; 373 374 state = vw->vw_kbdstate & LOCK_MASK; 375 ret = kbdd_ioctl(kbd, KDSKBSTATE, (caddr_t)&state); 376 if (ret == ENOIOCTL) 377 ret = ENODEV; 378 379 return (ret); 380} 381 382static int 383vt_save_kbd_leds(struct vt_window *vw, keyboard_t *kbd) 384{ 385 int leds, ret; 386 387 leds = 0; 388 ret = kbdd_ioctl(kbd, KDGETLED, (caddr_t)&leds); 389 if (ret == ENOIOCTL) 390 ret = ENODEV; 391 if (ret != 0) 392 return (ret); 393 394 vw->vw_kbdstate &= ~LED_MASK; 395 vw->vw_kbdstate |= leds & LED_MASK; 396 397 return (0); 398} 399 400static int 401vt_update_kbd_leds(struct vt_window *vw, keyboard_t *kbd) 402{ 403 int leds, ret; 404 405 leds = vw->vw_kbdstate & LED_MASK; 406 ret = kbdd_ioctl(kbd, KDSETLED, (caddr_t)&leds); 407 if (ret == ENOIOCTL) 408 ret = ENODEV; 409 410 return (ret); 411} 412 413static int 414vt_window_preswitch(struct vt_window *vw, struct vt_window *curvw) 415{ 416 417 DPRINTF(40, "%s\n", __func__); 418 curvw->vw_switch_to = vw; 419 /* Set timer to allow switch in case when process hang. */ 420 callout_reset(&vw->vw_proc_dead_timer, hz * vt_deadtimer, 421 vt_switch_timer, (void *)vw); 422 /* Notify process about vt switch attempt. */ 423 DPRINTF(30, "%s: Notify process.\n", __func__); 424 signal_vt_rel(curvw); 425 426 return (0); 427} 428 429static int 430vt_window_postswitch(struct vt_window *vw) 431{ 432 433 signal_vt_acq(vw); 434 return (0); 435} 436 437/* vt_late_window_switch will done VT switching for regular case. */ 438static int 439vt_late_window_switch(struct vt_window *vw) 440{ 441 int ret; 442 443 callout_stop(&vw->vw_proc_dead_timer); 444 445 ret = vt_window_switch(vw); 446 if (ret) 447 return (ret); 448 449 /* Notify owner process about terminal availability. */ 450 if (vw->vw_smode.mode == VT_PROCESS) { 451 ret = vt_window_postswitch(vw); 452 } 453 return (ret); 454} 455 456/* Switch window. */ 457static int 458vt_proc_window_switch(struct vt_window *vw) 459{ 460 struct vt_window *curvw; 461 struct vt_device *vd; 462 int ret; 463 464 /* Prevent switching to NULL */ 465 if (vw == NULL) { 466 DPRINTF(30, "%s: Cannot switch: vw is NULL.", __func__); 467 return (EINVAL); 468 } 469 vd = vw->vw_device; 470 curvw = vd->vd_curwindow; 471 472 /* Check if virtual terminal is locked */ 473 if (curvw->vw_flags & VWF_VTYLOCK) 474 return (EBUSY); 475 476 /* Check if switch already in progress */ 477 if (curvw->vw_flags & VWF_SWWAIT_REL) { 478 /* Check if switching to same window */ 479 if (curvw->vw_switch_to == vw) { 480 DPRINTF(30, "%s: Switch in progress to same vw.", __func__); 481 return (0); /* success */ 482 } 483 DPRINTF(30, "%s: Switch in progress to different vw.", __func__); 484 return (EBUSY); 485 } 486 487 /* Avoid switching to already selected window */ 488 if (vw == curvw) { 489 DPRINTF(30, "%s: Cannot switch: vw == curvw.", __func__); 490 return (0); /* success */ 491 } 492 493 /* Ask current process permission to switch away. */ 494 if (curvw->vw_smode.mode == VT_PROCESS) { 495 DPRINTF(30, "%s: VT_PROCESS ", __func__); 496 if (vt_proc_alive(curvw) == FALSE) { 497 DPRINTF(30, "Dead. Cleaning."); 498 /* Dead */ 499 } else { 500 DPRINTF(30, "%s: Signaling process.\n", __func__); 501 /* Alive, try to ask him. */ 502 ret = vt_window_preswitch(vw, curvw); 503 /* Wait for process answer or timeout. */ 504 return (ret); 505 } 506 DPRINTF(30, "\n"); 507 } 508 509 ret = vt_late_window_switch(vw); 510 return (ret); 511} 512 513/* Switch window ignoring process locking. */ 514static int 515vt_window_switch(struct vt_window *vw) 516{ 517 struct vt_device *vd = vw->vw_device; 518 struct vt_window *curvw = vd->vd_curwindow; 519 keyboard_t *kbd; 520 521 VT_LOCK(vd); 522 if (curvw == vw) { 523 /* Nothing to do. */ 524 VT_UNLOCK(vd); 525 return (0); 526 } 527 if (!(vw->vw_flags & (VWF_OPENED|VWF_CONSOLE))) { 528 VT_UNLOCK(vd); 529 return (EINVAL); 530 } 531 532 vt_suspend_flush_timer(vd); 533 534 vd->vd_curwindow = vw; 535 vd->vd_flags |= VDF_INVALID; 536 cv_broadcast(&vd->vd_winswitch); 537 VT_UNLOCK(vd); 538 539 if (vd->vd_driver->vd_postswitch) 540 vd->vd_driver->vd_postswitch(vd); 541 542 vt_resume_flush_timer(vd, 0); 543 544 /* Restore per-window keyboard mode. */ 545 mtx_lock(&Giant); 546 kbd = kbd_get_keyboard(vd->vd_keyboard); 547 if (kbd != NULL) { 548 if (curvw->vw_kbdmode == K_XLATE) 549 vt_save_kbd_state(curvw, kbd); 550 551 vt_update_kbd_mode(vw, kbd); 552 vt_update_kbd_state(vw, kbd); 553 } 554 mtx_unlock(&Giant); 555 DPRINTF(10, "%s(ttyv%d) done\n", __func__, vw->vw_number); 556 557 return (0); 558} 559 560void 561vt_termsize(struct vt_device *vd, struct vt_font *vf, term_pos_t *size) 562{ 563 564 size->tp_row = vd->vd_height; 565 if (vt_draw_logo_cpus) 566 size->tp_row -= vt_logo_sprite_height; 567 size->tp_col = vd->vd_width; 568 if (vf != NULL) { 569 size->tp_row /= vf->vf_height; 570 size->tp_col /= vf->vf_width; 571 } 572} 573 574static inline void 575vt_termrect(struct vt_device *vd, struct vt_font *vf, term_rect_t *rect) 576{ 577 578 rect->tr_begin.tp_row = rect->tr_begin.tp_col = 0; 579 if (vt_draw_logo_cpus) 580 rect->tr_begin.tp_row = vt_logo_sprite_height; 581 582 rect->tr_end.tp_row = vd->vd_height; 583 rect->tr_end.tp_col = vd->vd_width; 584 585 if (vf != NULL) { 586 rect->tr_begin.tp_row = 587 howmany(rect->tr_begin.tp_row, vf->vf_height); 588 589 rect->tr_end.tp_row /= vf->vf_height; 590 rect->tr_end.tp_col /= vf->vf_width; 591 } 592} 593 594void 595vt_winsize(struct vt_device *vd, struct vt_font *vf, struct winsize *size) 596{ 597 598 size->ws_ypixel = vd->vd_height; 599 if (vt_draw_logo_cpus) 600 size->ws_ypixel -= vt_logo_sprite_height; 601 size->ws_row = size->ws_ypixel; 602 size->ws_col = size->ws_xpixel = vd->vd_width; 603 if (vf != NULL) { 604 size->ws_row /= vf->vf_height; 605 size->ws_col /= vf->vf_width; 606 } 607} 608 609void 610vt_compute_drawable_area(struct vt_window *vw) 611{ 612 struct vt_device *vd; 613 struct vt_font *vf; 614 vt_axis_t height; 615 616 vd = vw->vw_device; 617 618 if (vw->vw_font == NULL) { 619 vw->vw_draw_area.tr_begin.tp_col = 0; 620 vw->vw_draw_area.tr_begin.tp_row = 0; 621 if (vt_draw_logo_cpus) 622 vw->vw_draw_area.tr_begin.tp_row = vt_logo_sprite_height; 623 vw->vw_draw_area.tr_end.tp_col = vd->vd_width; 624 vw->vw_draw_area.tr_end.tp_row = vd->vd_height; 625 return; 626 } 627 628 vf = vw->vw_font; 629 630 /* 631 * Compute the drawable area, so that the text is centered on 632 * the screen. 633 */ 634 635 height = vd->vd_height; 636 if (vt_draw_logo_cpus) 637 height -= vt_logo_sprite_height; 638 vw->vw_draw_area.tr_begin.tp_col = (vd->vd_width % vf->vf_width) / 2; 639 vw->vw_draw_area.tr_begin.tp_row = (height % vf->vf_height) / 2; 640 if (vt_draw_logo_cpus) 641 vw->vw_draw_area.tr_begin.tp_row += vt_logo_sprite_height; 642 vw->vw_draw_area.tr_end.tp_col = vw->vw_draw_area.tr_begin.tp_col + 643 rounddown(vd->vd_width, vf->vf_width); 644 vw->vw_draw_area.tr_end.tp_row = vw->vw_draw_area.tr_begin.tp_row + 645 rounddown(height, vf->vf_height); 646} 647 648static void 649vt_scroll(struct vt_window *vw, int offset, int whence) 650{ 651 int diff; 652 term_pos_t size; 653 654 if ((vw->vw_flags & VWF_SCROLL) == 0) 655 return; 656 657 vt_termsize(vw->vw_device, vw->vw_font, &size); 658 659 diff = vthistory_seek(&vw->vw_buf, offset, whence); 660 if (diff) 661 vw->vw_device->vd_flags |= VDF_INVALID; 662 vt_resume_flush_timer(vw->vw_device, 0); 663} 664 665static int 666vt_machine_kbdevent(int c) 667{ 668 669 switch (c) { 670 case SPCLKEY | DBG: /* kbdmap(5) keyword `debug`. */ 671 if (vt_kbd_debug) 672 kdb_enter(KDB_WHY_BREAK, "manual escape to debugger"); 673 return (1); 674 case SPCLKEY | HALT: /* kbdmap(5) keyword `halt`. */ 675 if (vt_kbd_halt) 676 shutdown_nice(RB_HALT); 677 return (1); 678 case SPCLKEY | PASTE: /* kbdmap(5) keyword `paste`. */ 679#ifndef SC_NO_CUTPASTE 680 /* Insert text from cut-paste buffer. */ 681 vt_mouse_paste(); 682#endif 683 break; 684 case SPCLKEY | PDWN: /* kbdmap(5) keyword `pdwn`. */ 685 if (vt_kbd_poweroff) 686 shutdown_nice(RB_HALT|RB_POWEROFF); 687 return (1); 688 case SPCLKEY | PNC: /* kbdmap(5) keyword `panic`. */ 689 /* 690 * Request to immediate panic if sysctl 691 * kern.vt.enable_panic_key allow it. 692 */ 693 if (vt_kbd_panic) 694 panic("Forced by the panic key"); 695 return (1); 696 case SPCLKEY | RBT: /* kbdmap(5) keyword `boot`. */ 697 if (vt_kbd_reboot) 698 shutdown_nice(RB_AUTOBOOT); 699 return (1); 700 case SPCLKEY | SPSC: /* kbdmap(5) keyword `spsc`. */ 701 /* Force activatation/deactivation of the screen saver. */ 702 /* TODO */ 703 return (1); 704 case SPCLKEY | STBY: /* XXX Not present in kbdcontrol parser. */ 705 /* Put machine into Stand-By mode. */ 706 power_pm_suspend(POWER_SLEEP_STATE_STANDBY); 707 return (1); 708 case SPCLKEY | SUSP: /* kbdmap(5) keyword `susp`. */ 709 /* Suspend machine. */ 710 power_pm_suspend(POWER_SLEEP_STATE_SUSPEND); 711 return (1); 712 } 713 714 return (0); 715} 716 717static void 718vt_scrollmode_kbdevent(struct vt_window *vw, int c, int console) 719{ 720 struct vt_device *vd; 721 term_pos_t size; 722 723 vd = vw->vw_device; 724 /* Only special keys handled in ScrollLock mode */ 725 if ((c & SPCLKEY) == 0) 726 return; 727 728 c &= ~SPCLKEY; 729 730 if (console == 0) { 731 if (c >= F_SCR && c <= MIN(L_SCR, F_SCR + VT_MAXWINDOWS - 1)) { 732 vw = vd->vd_windows[c - F_SCR]; 733 vt_proc_window_switch(vw); 734 return; 735 } 736 VT_LOCK(vd); 737 } 738 739 switch (c) { 740 case SLK: { 741 /* Turn scrolling off. */ 742 vt_scroll(vw, 0, VHS_END); 743 VTBUF_SLCK_DISABLE(&vw->vw_buf); 744 vw->vw_flags &= ~VWF_SCROLL; 745 break; 746 } 747 case FKEY | F(49): /* Home key. */ 748 vt_scroll(vw, 0, VHS_SET); 749 break; 750 case FKEY | F(50): /* Arrow up. */ 751 vt_scroll(vw, -1, VHS_CUR); 752 break; 753 case FKEY | F(51): /* Page up. */ 754 vt_termsize(vd, vw->vw_font, &size); 755 vt_scroll(vw, -size.tp_row, VHS_CUR); 756 break; 757 case FKEY | F(57): /* End key. */ 758 vt_scroll(vw, 0, VHS_END); 759 break; 760 case FKEY | F(58): /* Arrow down. */ 761 vt_scroll(vw, 1, VHS_CUR); 762 break; 763 case FKEY | F(59): /* Page down. */ 764 vt_termsize(vd, vw->vw_font, &size); 765 vt_scroll(vw, size.tp_row, VHS_CUR); 766 break; 767 } 768 769 if (console == 0) 770 VT_UNLOCK(vd); 771} 772 773static int 774vt_processkey(keyboard_t *kbd, struct vt_device *vd, int c) 775{ 776 struct vt_window *vw = vd->vd_curwindow; 777 778 random_harvest_queue(&c, sizeof(c), 1, RANDOM_KEYBOARD); 779#if VT_ALT_TO_ESC_HACK 780 if (c & RELKEY) { 781 switch (c & ~RELKEY) { 782 case (SPCLKEY | RALT): 783 if (vt_enable_altgr != 0) 784 break; 785 case (SPCLKEY | LALT): 786 vd->vd_kbstate &= ~ALKED; 787 } 788 /* Other keys ignored for RELKEY event. */ 789 return (0); 790 } else { 791 switch (c & ~RELKEY) { 792 case (SPCLKEY | RALT): 793 if (vt_enable_altgr != 0) 794 break; 795 case (SPCLKEY | LALT): 796 vd->vd_kbstate |= ALKED; 797 } 798 } 799#else 800 if (c & RELKEY) 801 /* Other keys ignored for RELKEY event. */ 802 return (0); 803#endif 804 805 if (vt_machine_kbdevent(c)) 806 return (0); 807 808 if (vw->vw_flags & VWF_SCROLL) { 809 vt_scrollmode_kbdevent(vw, c, 0/* Not a console */); 810 /* Scroll mode keys handled, nothing to do more. */ 811 return (0); 812 } 813 814 if (c & SPCLKEY) { 815 c &= ~SPCLKEY; 816 817 if (c >= F_SCR && c <= MIN(L_SCR, F_SCR + VT_MAXWINDOWS - 1)) { 818 vw = vd->vd_windows[c - F_SCR]; 819 vt_proc_window_switch(vw); 820 return (0); 821 } 822 823 switch (c) { 824 case NEXT: 825 /* Switch to next VT. */ 826 c = (vw->vw_number + 1) % VT_MAXWINDOWS; 827 vw = vd->vd_windows[c]; 828 vt_proc_window_switch(vw); 829 return (0); 830 case PREV: 831 /* Switch to previous VT. */ 832 c = (vw->vw_number + VT_MAXWINDOWS - 1) % VT_MAXWINDOWS; 833 vw = vd->vd_windows[c]; 834 vt_proc_window_switch(vw); 835 return (0); 836 case SLK: { 837 vt_save_kbd_state(vw, kbd); 838 VT_LOCK(vd); 839 if (vw->vw_kbdstate & SLKED) { 840 /* Turn scrolling on. */ 841 vw->vw_flags |= VWF_SCROLL; 842 VTBUF_SLCK_ENABLE(&vw->vw_buf); 843 } else { 844 /* Turn scrolling off. */ 845 vw->vw_flags &= ~VWF_SCROLL; 846 VTBUF_SLCK_DISABLE(&vw->vw_buf); 847 vt_scroll(vw, 0, VHS_END); 848 } 849 VT_UNLOCK(vd); 850 break; 851 } 852 case FKEY | F(1): case FKEY | F(2): case FKEY | F(3): 853 case FKEY | F(4): case FKEY | F(5): case FKEY | F(6): 854 case FKEY | F(7): case FKEY | F(8): case FKEY | F(9): 855 case FKEY | F(10): case FKEY | F(11): case FKEY | F(12): 856 /* F1 through F12 keys. */ 857 terminal_input_special(vw->vw_terminal, 858 TKEY_F1 + c - (FKEY | F(1))); 859 break; 860 case FKEY | F(49): /* Home key. */ 861 terminal_input_special(vw->vw_terminal, TKEY_HOME); 862 break; 863 case FKEY | F(50): /* Arrow up. */ 864 terminal_input_special(vw->vw_terminal, TKEY_UP); 865 break; 866 case FKEY | F(51): /* Page up. */ 867 terminal_input_special(vw->vw_terminal, TKEY_PAGE_UP); 868 break; 869 case FKEY | F(53): /* Arrow left. */ 870 terminal_input_special(vw->vw_terminal, TKEY_LEFT); 871 break; 872 case FKEY | F(55): /* Arrow right. */ 873 terminal_input_special(vw->vw_terminal, TKEY_RIGHT); 874 break; 875 case FKEY | F(57): /* End key. */ 876 terminal_input_special(vw->vw_terminal, TKEY_END); 877 break; 878 case FKEY | F(58): /* Arrow down. */ 879 terminal_input_special(vw->vw_terminal, TKEY_DOWN); 880 break; 881 case FKEY | F(59): /* Page down. */ 882 terminal_input_special(vw->vw_terminal, TKEY_PAGE_DOWN); 883 break; 884 case FKEY | F(60): /* Insert key. */ 885 terminal_input_special(vw->vw_terminal, TKEY_INSERT); 886 break; 887 case FKEY | F(61): /* Delete key. */ 888 terminal_input_special(vw->vw_terminal, TKEY_DELETE); 889 break; 890 } 891 } else if (KEYFLAGS(c) == 0) { 892 /* Don't do UTF-8 conversion when doing raw mode. */ 893 if (vw->vw_kbdmode == K_XLATE) { 894#if VT_ALT_TO_ESC_HACK 895 if (vd->vd_kbstate & ALKED) { 896 /* 897 * Prepend ESC sequence if one of ALT keys down. 898 */ 899 terminal_input_char(vw->vw_terminal, 0x1b); 900 } 901#endif 902#if defined(KDB) 903 kdb_alt_break(c, &vd->vd_altbrk); 904#endif 905 terminal_input_char(vw->vw_terminal, KEYCHAR(c)); 906 } else 907 terminal_input_raw(vw->vw_terminal, c); 908 } 909 return (0); 910} 911 912static int 913vt_kbdevent(keyboard_t *kbd, int event, void *arg) 914{ 915 struct vt_device *vd = arg; 916 int c; 917 918 switch (event) { 919 case KBDIO_KEYINPUT: 920 break; 921 case KBDIO_UNLOADING: 922 mtx_lock(&Giant); 923 vd->vd_keyboard = -1; 924 kbd_release(kbd, (void *)vd); 925 mtx_unlock(&Giant); 926 return (0); 927 default: 928 return (EINVAL); 929 } 930 931 while ((c = kbdd_read_char(kbd, 0)) != NOKEY) 932 vt_processkey(kbd, vd, c); 933 934 return (0); 935} 936 937static int 938vt_allocate_keyboard(struct vt_device *vd) 939{ 940 int idx0, idx; 941 keyboard_t *k0, *k; 942 keyboard_info_t ki; 943 944 idx0 = kbd_allocate("kbdmux", -1, vd, vt_kbdevent, vd); 945 if (idx0 >= 0) { 946 DPRINTF(20, "%s: kbdmux allocated, idx = %d\n", __func__, idx0); 947 k0 = kbd_get_keyboard(idx0); 948 949 for (idx = kbd_find_keyboard2("*", -1, 0); 950 idx != -1; 951 idx = kbd_find_keyboard2("*", -1, idx + 1)) { 952 k = kbd_get_keyboard(idx); 953 954 if (idx == idx0 || KBD_IS_BUSY(k)) 955 continue; 956 957 bzero(&ki, sizeof(ki)); 958 strncpy(ki.kb_name, k->kb_name, sizeof(ki.kb_name)); 959 ki.kb_name[sizeof(ki.kb_name) - 1] = '\0'; 960 ki.kb_unit = k->kb_unit; 961 962 kbdd_ioctl(k0, KBADDKBD, (caddr_t) &ki); 963 } 964 } else { 965 DPRINTF(20, "%s: no kbdmux allocated\n", __func__); 966 idx0 = kbd_allocate("*", -1, vd, vt_kbdevent, vd); 967 if (idx0 < 0) { 968 DPRINTF(10, "%s: No keyboard found.\n", __func__); 969 return (-1); 970 } 971 } 972 vd->vd_keyboard = idx0; 973 DPRINTF(20, "%s: vd_keyboard = %d\n", __func__, vd->vd_keyboard); 974 975 return (idx0); 976} 977 978static void 979vtterm_bell(struct terminal *tm) 980{ 981 struct vt_window *vw = tm->tm_softc; 982 struct vt_device *vd = vw->vw_device; 983 984 if (!vt_enable_bell) 985 return; 986 987 if (vd->vd_flags & VDF_QUIET_BELL) 988 return; 989 990 sysbeep(1193182 / VT_BELLPITCH, VT_BELLDURATION); 991} 992 993static void 994vtterm_beep(struct terminal *tm, u_int param) 995{ 996 u_int freq, period; 997 998 if (!vt_enable_bell) 999 return; 1000 1001 if ((param == 0) || ((param & 0xffff) == 0)) { 1002 vtterm_bell(tm); 1003 return; 1004 } 1005 1006 period = ((param >> 16) & 0xffff) * hz / 1000; 1007 freq = 1193182 / (param & 0xffff); 1008 1009 sysbeep(freq, period); 1010} 1011 1012static void 1013vtterm_cursor(struct terminal *tm, const term_pos_t *p) 1014{ 1015 struct vt_window *vw = tm->tm_softc; 1016 1017 vtbuf_cursor_position(&vw->vw_buf, p); 1018 vt_resume_flush_timer(vw->vw_device, 0); 1019} 1020 1021static void 1022vtterm_putchar(struct terminal *tm, const term_pos_t *p, term_char_t c) 1023{ 1024 struct vt_window *vw = tm->tm_softc; 1025 1026 vtbuf_putchar(&vw->vw_buf, p, c); 1027 vt_resume_flush_timer(vw->vw_device, 0); 1028} 1029 1030static void 1031vtterm_fill(struct terminal *tm, const term_rect_t *r, term_char_t c) 1032{ 1033 struct vt_window *vw = tm->tm_softc; 1034 1035 vtbuf_fill_locked(&vw->vw_buf, r, c); 1036 vt_resume_flush_timer(vw->vw_device, 0); 1037} 1038 1039static void 1040vtterm_copy(struct terminal *tm, const term_rect_t *r, 1041 const term_pos_t *p) 1042{ 1043 struct vt_window *vw = tm->tm_softc; 1044 1045 vtbuf_copy(&vw->vw_buf, r, p); 1046 vt_resume_flush_timer(vw->vw_device, 0); 1047} 1048 1049static void 1050vtterm_param(struct terminal *tm, int cmd, unsigned int arg) 1051{ 1052 struct vt_window *vw = tm->tm_softc; 1053 1054 switch (cmd) { 1055 case TP_SHOWCURSOR: 1056 vtbuf_cursor_visibility(&vw->vw_buf, arg); 1057 vt_resume_flush_timer(vw->vw_device, 0); 1058 break; 1059 case TP_MOUSE: 1060 vw->vw_mouse_level = arg; 1061 break; 1062 } 1063} 1064 1065void 1066vt_determine_colors(term_char_t c, int cursor, 1067 term_color_t *fg, term_color_t *bg) 1068{ 1069 term_color_t tmp; 1070 int invert; 1071 1072 invert = 0; 1073 1074 *fg = TCHAR_FGCOLOR(c); 1075 if (TCHAR_FORMAT(c) & TF_BOLD) 1076 *fg = TCOLOR_LIGHT(*fg); 1077 *bg = TCHAR_BGCOLOR(c); 1078 1079 if (TCHAR_FORMAT(c) & TF_REVERSE) 1080 invert ^= 1; 1081 if (cursor) 1082 invert ^= 1; 1083 1084 if (invert) { 1085 tmp = *fg; 1086 *fg = *bg; 1087 *bg = tmp; 1088 } 1089} 1090 1091#ifndef SC_NO_CUTPASTE 1092int 1093vt_is_cursor_in_area(const struct vt_device *vd, const term_rect_t *area) 1094{ 1095 unsigned int mx, my; 1096 1097 /* 1098 * We use the cursor position saved during the current refresh, 1099 * in case the cursor moved since. 1100 */ 1101 mx = vd->vd_mx_drawn + vd->vd_curwindow->vw_draw_area.tr_begin.tp_col; 1102 my = vd->vd_my_drawn + vd->vd_curwindow->vw_draw_area.tr_begin.tp_row; 1103 1104 if (mx >= area->tr_end.tp_col || 1105 mx + vd->vd_mcursor->width <= area->tr_begin.tp_col || 1106 my >= area->tr_end.tp_row || 1107 my + vd->vd_mcursor->height <= area->tr_begin.tp_row) 1108 return (0); 1109 return (1); 1110} 1111 1112static void 1113vt_mark_mouse_position_as_dirty(struct vt_device *vd) 1114{ 1115 term_rect_t area; 1116 struct vt_window *vw; 1117 struct vt_font *vf; 1118 int x, y; 1119 1120 vw = vd->vd_curwindow; 1121 vf = vw->vw_font; 1122 1123 x = vd->vd_mx_drawn; 1124 y = vd->vd_my_drawn; 1125 1126 if (vf != NULL) { 1127 area.tr_begin.tp_col = x / vf->vf_width; 1128 area.tr_begin.tp_row = y / vf->vf_height; 1129 area.tr_end.tp_col = 1130 ((x + vd->vd_mcursor->width) / vf->vf_width) + 1; 1131 area.tr_end.tp_row = 1132 ((y + vd->vd_mcursor->height) / vf->vf_height) + 1; 1133 } else { 1134 /* 1135 * No font loaded (ie. vt_vga operating in textmode). 1136 * 1137 * FIXME: This fake area needs to be revisited once the 1138 * mouse cursor is supported in vt_vga's textmode. 1139 */ 1140 area.tr_begin.tp_col = x; 1141 area.tr_begin.tp_row = y; 1142 area.tr_end.tp_col = x + 2; 1143 area.tr_end.tp_row = y + 2; 1144 } 1145 1146 vtbuf_dirty(&vw->vw_buf, &area); 1147} 1148#endif 1149 1150static int 1151vt_flush(struct vt_device *vd) 1152{ 1153 struct vt_window *vw; 1154 struct vt_font *vf; 1155 term_rect_t tarea; 1156#ifndef SC_NO_CUTPASTE 1157 int cursor_was_shown, cursor_moved; 1158#endif 1159 1160 vw = vd->vd_curwindow; 1161 if (vw == NULL) 1162 return (0); 1163 1164 if (vd->vd_flags & VDF_SPLASH || vw->vw_flags & VWF_BUSY) 1165 return (0); 1166 1167 vf = vw->vw_font; 1168 if (((vd->vd_flags & VDF_TEXTMODE) == 0) && (vf == NULL)) 1169 return (0); 1170 1171#ifndef SC_NO_CUTPASTE 1172 cursor_was_shown = vd->vd_mshown; 1173 cursor_moved = (vd->vd_mx != vd->vd_mx_drawn || 1174 vd->vd_my != vd->vd_my_drawn); 1175 1176 /* Check if the cursor should be displayed or not. */ 1177 if ((vd->vd_flags & VDF_MOUSECURSOR) && /* Mouse support enabled. */ 1178 !(vw->vw_flags & VWF_MOUSE_HIDE) && /* Cursor displayed. */ 1179 !kdb_active && panicstr == NULL) { /* DDB inactive. */ 1180 vd->vd_mshown = 1; 1181 } else { 1182 vd->vd_mshown = 0; 1183 } 1184 1185 /* 1186 * If the cursor changed display state or moved, we must mark 1187 * the old position as dirty, so that it's erased. 1188 */ 1189 if (cursor_was_shown != vd->vd_mshown || 1190 (vd->vd_mshown && cursor_moved)) 1191 vt_mark_mouse_position_as_dirty(vd); 1192 1193 /* 1194 * Save position of the mouse cursor. It's used by backends to 1195 * know where to draw the cursor and during the next refresh to 1196 * erase the previous position. 1197 */ 1198 vd->vd_mx_drawn = vd->vd_mx; 1199 vd->vd_my_drawn = vd->vd_my; 1200 1201 /* 1202 * If the cursor is displayed and has moved since last refresh, 1203 * mark the new position as dirty. 1204 */ 1205 if (vd->vd_mshown && cursor_moved) 1206 vt_mark_mouse_position_as_dirty(vd); 1207#endif 1208 1209 vtbuf_undirty(&vw->vw_buf, &tarea); 1210 1211 /* Force a full redraw when the screen contents are invalid. */ 1212 if (vd->vd_flags & VDF_INVALID) { 1213 vd->vd_flags &= ~VDF_INVALID; 1214 1215 vt_termrect(vd, vf, &tarea); 1216 if (vt_draw_logo_cpus) 1217 vtterm_draw_cpu_logos(vd); 1218 } 1219 1220 if (tarea.tr_begin.tp_col < tarea.tr_end.tp_col) { 1221 vd->vd_driver->vd_bitblt_text(vd, vw, &tarea); 1222 return (1); 1223 } 1224 1225 return (0); 1226} 1227 1228static void 1229vt_timer(void *arg) 1230{ 1231 struct vt_device *vd; 1232 int changed; 1233 1234 vd = arg; 1235 /* Update screen if required. */ 1236 changed = vt_flush(vd); 1237 1238 /* Schedule for next update. */ 1239 if (changed) 1240 vt_schedule_flush(vd, 0); 1241 else 1242 vd->vd_timer_armed = 0; 1243} 1244 1245static void 1246vtterm_done(struct terminal *tm) 1247{ 1248 struct vt_window *vw = tm->tm_softc; 1249 struct vt_device *vd = vw->vw_device; 1250 1251 if (kdb_active || panicstr != NULL) { 1252 /* Switch to the debugger. */ 1253 if (vd->vd_curwindow != vw) { 1254 vd->vd_curwindow = vw; 1255 vd->vd_flags |= VDF_INVALID; 1256 if (vd->vd_driver->vd_postswitch) 1257 vd->vd_driver->vd_postswitch(vd); 1258 } 1259 vd->vd_flags &= ~VDF_SPLASH; 1260 vt_flush(vd); 1261 } else if (!(vd->vd_flags & VDF_ASYNC)) { 1262 vt_flush(vd); 1263 } 1264} 1265 1266#ifdef DEV_SPLASH 1267static void 1268vtterm_splash(struct vt_device *vd) 1269{ 1270 vt_axis_t top, left; 1271 1272 /* Display a nice boot splash. */ 1273 if (!(vd->vd_flags & VDF_TEXTMODE) && (boothowto & RB_MUTE)) { 1274 1275 top = (vd->vd_height - vt_logo_height) / 2; 1276 left = (vd->vd_width - vt_logo_width) / 2; 1277 switch (vt_logo_depth) { 1278 case 1: 1279 /* XXX: Unhardcode colors! */ 1280 vd->vd_driver->vd_bitblt_bmp(vd, vd->vd_curwindow, 1281 vt_logo_image, NULL, vt_logo_width, vt_logo_height, 1282 left, top, TC_WHITE, TC_BLACK); 1283 } 1284 vd->vd_flags |= VDF_SPLASH; 1285 } 1286} 1287#endif 1288 1289 1290static void 1291vtterm_cnprobe(struct terminal *tm, struct consdev *cp) 1292{ 1293 struct vt_driver *vtd, **vtdlist, *vtdbest = NULL; 1294 struct vt_window *vw = tm->tm_softc; 1295 struct vt_device *vd = vw->vw_device; 1296 struct winsize wsz; 1297 term_attr_t attr; 1298 term_char_t c; 1299 1300 if (!vty_enabled(VTY_VT)) 1301 return; 1302 1303 if (vd->vd_flags & VDF_INITIALIZED) 1304 /* Initialization already done. */ 1305 return; 1306 1307 SET_FOREACH(vtdlist, vt_drv_set) { 1308 vtd = *vtdlist; 1309 if (vtd->vd_probe == NULL) 1310 continue; 1311 if (vtd->vd_probe(vd) == CN_DEAD) 1312 continue; 1313 if ((vtdbest == NULL) || 1314 (vtd->vd_priority > vtdbest->vd_priority)) 1315 vtdbest = vtd; 1316 } 1317 if (vtdbest == NULL) { 1318 cp->cn_pri = CN_DEAD; 1319 vd->vd_flags |= VDF_DEAD; 1320 } else { 1321 vd->vd_driver = vtdbest; 1322 cp->cn_pri = vd->vd_driver->vd_init(vd); 1323 } 1324 1325 /* Check if driver's vt_init return CN_DEAD. */ 1326 if (cp->cn_pri == CN_DEAD) { 1327 vd->vd_flags |= VDF_DEAD; 1328 } 1329 1330 /* Initialize any early-boot keyboard drivers */ 1331 kbd_configure(KB_CONF_PROBE_ONLY); 1332 1333 vd->vd_unit = atomic_fetchadd_int(&vt_unit, 1); 1334 vd->vd_windows[VT_CONSWINDOW] = vw; 1335 sprintf(cp->cn_name, "ttyv%r", VT_UNIT(vw)); 1336 1337 /* Attach default font if not in TEXTMODE. */ 1338 if ((vd->vd_flags & VDF_TEXTMODE) == 0) { 1339 vw->vw_font = vtfont_ref(&vt_font_default); 1340 vt_compute_drawable_area(vw); 1341 } 1342 1343 /* 1344 * The original screen size was faked (_VTDEFW x _VTDEFH). Now 1345 * that we have the real viewable size, fix it in the static 1346 * buffer. 1347 */ 1348 if (vd->vd_width != 0 && vd->vd_height != 0) 1349 vt_termsize(vd, vw->vw_font, &vw->vw_buf.vb_scr_size); 1350 1351 vtbuf_init_early(&vw->vw_buf); 1352 vt_winsize(vd, vw->vw_font, &wsz); 1353 c = (boothowto & RB_MUTE) == 0 ? TERMINAL_KERN_ATTR : 1354 TERMINAL_NORM_ATTR; 1355 attr.ta_format = TCHAR_FORMAT(c); 1356 attr.ta_fgcolor = TCHAR_FGCOLOR(c); 1357 attr.ta_bgcolor = TCHAR_BGCOLOR(c); 1358 terminal_set_winsize_blank(tm, &wsz, 1, &attr); 1359 1360 if (vtdbest != NULL) { 1361#ifdef DEV_SPLASH 1362 if (!vt_splash_cpu) 1363 vtterm_splash(vd); 1364#endif 1365 vd->vd_flags |= VDF_INITIALIZED; 1366 } 1367} 1368 1369static int 1370vtterm_cngetc(struct terminal *tm) 1371{ 1372 struct vt_window *vw = tm->tm_softc; 1373 struct vt_device *vd = vw->vw_device; 1374 keyboard_t *kbd; 1375 u_int c; 1376 1377 if (vw->vw_kbdsq && *vw->vw_kbdsq) 1378 return (*vw->vw_kbdsq++); 1379 1380 /* Make sure the splash screen is not there. */ 1381 if (vd->vd_flags & VDF_SPLASH) { 1382 /* Remove splash */ 1383 vd->vd_flags &= ~VDF_SPLASH; 1384 /* Mark screen as invalid to force update */ 1385 vd->vd_flags |= VDF_INVALID; 1386 vt_flush(vd); 1387 } 1388 1389 /* Stripped down keyboard handler. */ 1390 kbd = kbd_get_keyboard(vd->vd_keyboard); 1391 if (kbd == NULL) 1392 return (-1); 1393 1394 /* Force keyboard input mode to K_XLATE */ 1395 vw->vw_kbdmode = K_XLATE; 1396 vt_update_kbd_mode(vw, kbd); 1397 1398 /* Switch the keyboard to polling to make it work here. */ 1399 kbdd_poll(kbd, TRUE); 1400 c = kbdd_read_char(kbd, 0); 1401 kbdd_poll(kbd, FALSE); 1402 if (c & RELKEY) 1403 return (-1); 1404 1405 if (vw->vw_flags & VWF_SCROLL) { 1406 vt_scrollmode_kbdevent(vw, c, 1/* Console mode */); 1407 vt_flush(vd); 1408 return (-1); 1409 } 1410 1411 /* Stripped down handling of vt_kbdevent(), without locking, etc. */ 1412 if (c & SPCLKEY) { 1413 switch (c) { 1414 case SPCLKEY | SLK: 1415 vt_save_kbd_state(vw, kbd); 1416 if (vw->vw_kbdstate & SLKED) { 1417 /* Turn scrolling on. */ 1418 vw->vw_flags |= VWF_SCROLL; 1419 VTBUF_SLCK_ENABLE(&vw->vw_buf); 1420 } else { 1421 /* Turn scrolling off. */ 1422 vt_scroll(vw, 0, VHS_END); 1423 vw->vw_flags &= ~VWF_SCROLL; 1424 VTBUF_SLCK_DISABLE(&vw->vw_buf); 1425 } 1426 break; 1427 /* XXX: KDB can handle history. */ 1428 case SPCLKEY | FKEY | F(50): /* Arrow up. */ 1429 vw->vw_kbdsq = "\x1b[A"; 1430 break; 1431 case SPCLKEY | FKEY | F(58): /* Arrow down. */ 1432 vw->vw_kbdsq = "\x1b[B"; 1433 break; 1434 case SPCLKEY | FKEY | F(55): /* Arrow right. */ 1435 vw->vw_kbdsq = "\x1b[C"; 1436 break; 1437 case SPCLKEY | FKEY | F(53): /* Arrow left. */ 1438 vw->vw_kbdsq = "\x1b[D"; 1439 break; 1440 } 1441 1442 /* Force refresh to make scrollback work. */ 1443 vt_flush(vd); 1444 } else if (KEYFLAGS(c) == 0) { 1445 return (KEYCHAR(c)); 1446 } 1447 1448 if (vw->vw_kbdsq && *vw->vw_kbdsq) 1449 return (*vw->vw_kbdsq++); 1450 1451 return (-1); 1452} 1453 1454static void 1455vtterm_cngrab(struct terminal *tm) 1456{ 1457 struct vt_device *vd; 1458 struct vt_window *vw; 1459 keyboard_t *kbd; 1460 1461 vw = tm->tm_softc; 1462 vd = vw->vw_device; 1463 1464 if (!cold) 1465 vt_window_switch(vw); 1466 1467 kbd = kbd_get_keyboard(vd->vd_keyboard); 1468 if (kbd == NULL) 1469 return; 1470 1471 if (vw->vw_grabbed++ > 0) 1472 return; 1473 1474 /* 1475 * Make sure the keyboard is accessible even when the kbd device 1476 * driver is disabled. 1477 */ 1478 kbdd_enable(kbd); 1479 1480 /* We shall always use the keyboard in the XLATE mode here. */ 1481 vw->vw_prev_kbdmode = vw->vw_kbdmode; 1482 vw->vw_kbdmode = K_XLATE; 1483 vt_update_kbd_mode(vw, kbd); 1484 1485 kbdd_poll(kbd, TRUE); 1486} 1487 1488static void 1489vtterm_cnungrab(struct terminal *tm) 1490{ 1491 struct vt_device *vd; 1492 struct vt_window *vw; 1493 keyboard_t *kbd; 1494 1495 vw = tm->tm_softc; 1496 vd = vw->vw_device; 1497 1498 kbd = kbd_get_keyboard(vd->vd_keyboard); 1499 if (kbd == NULL) 1500 return; 1501 1502 if (--vw->vw_grabbed > 0) 1503 return; 1504 1505 kbdd_poll(kbd, FALSE); 1506 1507 vw->vw_kbdmode = vw->vw_prev_kbdmode; 1508 vt_update_kbd_mode(vw, kbd); 1509 kbdd_disable(kbd); 1510} 1511 1512static void 1513vtterm_opened(struct terminal *tm, int opened) 1514{ 1515 struct vt_window *vw = tm->tm_softc; 1516 struct vt_device *vd = vw->vw_device; 1517 1518 VT_LOCK(vd); 1519 vd->vd_flags &= ~VDF_SPLASH; 1520 if (opened) 1521 vw->vw_flags |= VWF_OPENED; 1522 else { 1523 vw->vw_flags &= ~VWF_OPENED; 1524 /* TODO: finish ACQ/REL */ 1525 } 1526 VT_UNLOCK(vd); 1527} 1528 1529static int 1530vt_set_border(struct vt_window *vw, term_color_t c) 1531{ 1532 struct vt_device *vd = vw->vw_device; 1533 1534 if (vd->vd_driver->vd_drawrect == NULL) 1535 return (ENOTSUP); 1536 1537 /* Top bar. */ 1538 if (vw->vw_draw_area.tr_begin.tp_row > 0) 1539 vd->vd_driver->vd_drawrect(vd, 1540 0, 0, 1541 vd->vd_width - 1, vw->vw_draw_area.tr_begin.tp_row - 1, 1542 1, c); 1543 1544 /* Left bar. */ 1545 if (vw->vw_draw_area.tr_begin.tp_col > 0) 1546 vd->vd_driver->vd_drawrect(vd, 1547 0, 0, 1548 vw->vw_draw_area.tr_begin.tp_col - 1, vd->vd_height - 1, 1549 1, c); 1550 1551 /* Right bar. */ 1552 if (vw->vw_draw_area.tr_end.tp_col < vd->vd_width) 1553 vd->vd_driver->vd_drawrect(vd, 1554 vw->vw_draw_area.tr_end.tp_col - 1, 0, 1555 vd->vd_width - 1, vd->vd_height - 1, 1556 1, c); 1557 1558 /* Bottom bar. */ 1559 if (vw->vw_draw_area.tr_end.tp_row < vd->vd_height) 1560 vd->vd_driver->vd_drawrect(vd, 1561 0, vw->vw_draw_area.tr_end.tp_row - 1, 1562 vd->vd_width - 1, vd->vd_height - 1, 1563 1, c); 1564 1565 return (0); 1566} 1567 1568static int 1569vt_change_font(struct vt_window *vw, struct vt_font *vf) 1570{ 1571 struct vt_device *vd = vw->vw_device; 1572 struct terminal *tm = vw->vw_terminal; 1573 term_pos_t size; 1574 struct winsize wsz; 1575 1576 /* 1577 * Changing fonts. 1578 * 1579 * Changing fonts is a little tricky. We must prevent 1580 * simultaneous access to the device, so we must stop 1581 * the display timer and the terminal from accessing. 1582 * We need to switch fonts and grow our screen buffer. 1583 * 1584 * XXX: Right now the code uses terminal_mute() to 1585 * prevent data from reaching the console driver while 1586 * resizing the screen buffer. This isn't elegant... 1587 */ 1588 1589 VT_LOCK(vd); 1590 if (vw->vw_flags & VWF_BUSY) { 1591 /* Another process is changing the font. */ 1592 VT_UNLOCK(vd); 1593 return (EBUSY); 1594 } 1595 vw->vw_flags |= VWF_BUSY; 1596 VT_UNLOCK(vd); 1597 1598 vt_termsize(vd, vf, &size); 1599 vt_winsize(vd, vf, &wsz); 1600 1601 /* Grow the screen buffer and terminal. */ 1602 terminal_mute(tm, 1); 1603 vtbuf_grow(&vw->vw_buf, &size, vw->vw_buf.vb_history_size); 1604 terminal_set_winsize_blank(tm, &wsz, 0, NULL); 1605 terminal_set_cursor(tm, &vw->vw_buf.vb_cursor); 1606 terminal_mute(tm, 0); 1607 1608 /* Actually apply the font to the current window. */ 1609 VT_LOCK(vd); 1610 if (vw->vw_font != vf && vw->vw_font != NULL && vf != NULL) { 1611 /* 1612 * In case vt_change_font called to update size we don't need 1613 * to update font link. 1614 */ 1615 vtfont_unref(vw->vw_font); 1616 vw->vw_font = vtfont_ref(vf); 1617 } 1618 1619 /* 1620 * Compute the drawable area and move the mouse cursor inside 1621 * it, in case the new area is smaller than the previous one. 1622 */ 1623 vt_compute_drawable_area(vw); 1624 vd->vd_mx = min(vd->vd_mx, 1625 vw->vw_draw_area.tr_end.tp_col - 1626 vw->vw_draw_area.tr_begin.tp_col - 1); 1627 vd->vd_my = min(vd->vd_my, 1628 vw->vw_draw_area.tr_end.tp_row - 1629 vw->vw_draw_area.tr_begin.tp_row - 1); 1630 1631 /* Force a full redraw the next timer tick. */ 1632 if (vd->vd_curwindow == vw) { 1633 vt_set_border(vw, TC_BLACK); 1634 vd->vd_flags |= VDF_INVALID; 1635 vt_resume_flush_timer(vw->vw_device, 0); 1636 } 1637 vw->vw_flags &= ~VWF_BUSY; 1638 VT_UNLOCK(vd); 1639 return (0); 1640} 1641 1642static int 1643vt_proc_alive(struct vt_window *vw) 1644{ 1645 struct proc *p; 1646 1647 if (vw->vw_smode.mode != VT_PROCESS) 1648 return (FALSE); 1649 1650 if (vw->vw_proc) { 1651 if ((p = pfind(vw->vw_pid)) != NULL) 1652 PROC_UNLOCK(p); 1653 if (vw->vw_proc == p) 1654 return (TRUE); 1655 vw->vw_proc = NULL; 1656 vw->vw_smode.mode = VT_AUTO; 1657 DPRINTF(1, "vt controlling process %d died\n", vw->vw_pid); 1658 vw->vw_pid = 0; 1659 } 1660 return (FALSE); 1661} 1662 1663static int 1664signal_vt_rel(struct vt_window *vw) 1665{ 1666 1667 if (vw->vw_smode.mode != VT_PROCESS) 1668 return (FALSE); 1669 if (vw->vw_proc == NULL || vt_proc_alive(vw) == FALSE) { 1670 vw->vw_proc = NULL; 1671 vw->vw_pid = 0; 1672 return (TRUE); 1673 } 1674 vw->vw_flags |= VWF_SWWAIT_REL; 1675 PROC_LOCK(vw->vw_proc); 1676 kern_psignal(vw->vw_proc, vw->vw_smode.relsig); 1677 PROC_UNLOCK(vw->vw_proc); 1678 DPRINTF(1, "sending relsig to %d\n", vw->vw_pid); 1679 return (TRUE); 1680} 1681 1682static int 1683signal_vt_acq(struct vt_window *vw) 1684{ 1685 1686 if (vw->vw_smode.mode != VT_PROCESS) 1687 return (FALSE); 1688 if (vw == vw->vw_device->vd_windows[VT_CONSWINDOW]) 1689 cnavailable(vw->vw_terminal->consdev, FALSE); 1690 if (vw->vw_proc == NULL || vt_proc_alive(vw) == FALSE) { 1691 vw->vw_proc = NULL; 1692 vw->vw_pid = 0; 1693 return (TRUE); 1694 } 1695 vw->vw_flags |= VWF_SWWAIT_ACQ; 1696 PROC_LOCK(vw->vw_proc); 1697 kern_psignal(vw->vw_proc, vw->vw_smode.acqsig); 1698 PROC_UNLOCK(vw->vw_proc); 1699 DPRINTF(1, "sending acqsig to %d\n", vw->vw_pid); 1700 return (TRUE); 1701} 1702 1703static int 1704finish_vt_rel(struct vt_window *vw, int release, int *s) 1705{ 1706 1707 if (vw->vw_flags & VWF_SWWAIT_REL) { 1708 vw->vw_flags &= ~VWF_SWWAIT_REL; 1709 if (release) { 1710 callout_drain(&vw->vw_proc_dead_timer); 1711 vt_late_window_switch(vw->vw_switch_to); 1712 } 1713 return (0); 1714 } 1715 return (EINVAL); 1716} 1717 1718static int 1719finish_vt_acq(struct vt_window *vw) 1720{ 1721 1722 if (vw->vw_flags & VWF_SWWAIT_ACQ) { 1723 vw->vw_flags &= ~VWF_SWWAIT_ACQ; 1724 return (0); 1725 } 1726 return (EINVAL); 1727} 1728 1729#ifndef SC_NO_CUTPASTE 1730static void 1731vt_mouse_terminput_button(struct vt_device *vd, int button) 1732{ 1733 struct vt_window *vw; 1734 struct vt_font *vf; 1735 char mouseb[6] = "\x1B[M"; 1736 int i, x, y; 1737 1738 vw = vd->vd_curwindow; 1739 vf = vw->vw_font; 1740 1741 /* Translate to char position. */ 1742 x = vd->vd_mx / vf->vf_width; 1743 y = vd->vd_my / vf->vf_height; 1744 /* Avoid overflow. */ 1745 x = MIN(x, 255 - '!'); 1746 y = MIN(y, 255 - '!'); 1747 1748 mouseb[3] = ' ' + button; 1749 mouseb[4] = '!' + x; 1750 mouseb[5] = '!' + y; 1751 1752 for (i = 0; i < sizeof(mouseb); i++) 1753 terminal_input_char(vw->vw_terminal, mouseb[i]); 1754} 1755 1756static void 1757vt_mouse_terminput(struct vt_device *vd, int type, int x, int y, int event, 1758 int cnt) 1759{ 1760 1761 switch (type) { 1762 case MOUSE_BUTTON_EVENT: 1763 if (cnt > 0) { 1764 /* Mouse button pressed. */ 1765 if (event & MOUSE_BUTTON1DOWN) 1766 vt_mouse_terminput_button(vd, 0); 1767 if (event & MOUSE_BUTTON2DOWN) 1768 vt_mouse_terminput_button(vd, 1); 1769 if (event & MOUSE_BUTTON3DOWN) 1770 vt_mouse_terminput_button(vd, 2); 1771 } else { 1772 /* Mouse button released. */ 1773 vt_mouse_terminput_button(vd, 3); 1774 } 1775 break; 1776#ifdef notyet 1777 case MOUSE_MOTION_EVENT: 1778 if (mouse->u.data.z < 0) { 1779 /* Scroll up. */ 1780 sc_mouse_input_button(vd, 64); 1781 } else if (mouse->u.data.z > 0) { 1782 /* Scroll down. */ 1783 sc_mouse_input_button(vd, 65); 1784 } 1785 break; 1786#endif 1787 } 1788} 1789 1790static void 1791vt_mouse_paste() 1792{ 1793 term_char_t *buf; 1794 int i, len; 1795 1796 len = VD_PASTEBUFLEN(main_vd); 1797 buf = VD_PASTEBUF(main_vd); 1798 len /= sizeof(term_char_t); 1799 for (i = 0; i < len; i++) { 1800 if (buf[i] == '\0') 1801 continue; 1802 terminal_input_char(main_vd->vd_curwindow->vw_terminal, 1803 buf[i]); 1804 } 1805} 1806 1807void 1808vt_mouse_event(int type, int x, int y, int event, int cnt, int mlevel) 1809{ 1810 struct vt_device *vd; 1811 struct vt_window *vw; 1812 struct vt_font *vf; 1813 term_pos_t size; 1814 int len, mark; 1815 1816 vd = main_vd; 1817 vw = vd->vd_curwindow; 1818 vf = vw->vw_font; 1819 mark = 0; 1820 1821 if (vw->vw_flags & (VWF_MOUSE_HIDE | VWF_GRAPHICS)) 1822 /* 1823 * Either the mouse is disabled, or the window is in 1824 * "graphics mode". The graphics mode is usually set by 1825 * an X server, using the KDSETMODE ioctl. 1826 */ 1827 return; 1828 1829 if (vf == NULL) /* Text mode. */ 1830 return; 1831 1832 /* 1833 * TODO: add flag about pointer position changed, to not redraw chars 1834 * under mouse pointer when nothing changed. 1835 */ 1836 1837 if (vw->vw_mouse_level > 0) 1838 vt_mouse_terminput(vd, type, x, y, event, cnt); 1839 1840 switch (type) { 1841 case MOUSE_ACTION: 1842 case MOUSE_MOTION_EVENT: 1843 /* Movement */ 1844 x += vd->vd_mx; 1845 y += vd->vd_my; 1846 1847 vt_termsize(vd, vf, &size); 1848 1849 /* Apply limits. */ 1850 x = MAX(x, 0); 1851 y = MAX(y, 0); 1852 x = MIN(x, (size.tp_col * vf->vf_width) - 1); 1853 y = MIN(y, (size.tp_row * vf->vf_height) - 1); 1854 1855 vd->vd_mx = x; 1856 vd->vd_my = y; 1857 if (vd->vd_mstate & MOUSE_BUTTON1DOWN) 1858 vtbuf_set_mark(&vw->vw_buf, VTB_MARK_MOVE, 1859 vd->vd_mx / vf->vf_width, 1860 vd->vd_my / vf->vf_height); 1861 1862 vt_resume_flush_timer(vw->vw_device, 0); 1863 return; /* Done */ 1864 case MOUSE_BUTTON_EVENT: 1865 /* Buttons */ 1866 break; 1867 default: 1868 return; /* Done */ 1869 } 1870 1871 switch (event) { 1872 case MOUSE_BUTTON1DOWN: 1873 switch (cnt % 4) { 1874 case 0: /* up */ 1875 mark = VTB_MARK_END; 1876 break; 1877 case 1: /* single click: start cut operation */ 1878 mark = VTB_MARK_START; 1879 break; 1880 case 2: /* double click: cut a word */ 1881 mark = VTB_MARK_WORD; 1882 break; 1883 case 3: /* triple click: cut a line */ 1884 mark = VTB_MARK_ROW; 1885 break; 1886 } 1887 break; 1888 case VT_MOUSE_PASTEBUTTON: 1889 switch (cnt) { 1890 case 0: /* up */ 1891 break; 1892 default: 1893 vt_mouse_paste(); 1894 break; 1895 } 1896 return; /* Done */ 1897 case VT_MOUSE_EXTENDBUTTON: 1898 switch (cnt) { 1899 case 0: /* up */ 1900 if (!(vd->vd_mstate & MOUSE_BUTTON1DOWN)) 1901 mark = VTB_MARK_EXTEND; 1902 else 1903 mark = 0; 1904 break; 1905 default: 1906 mark = VTB_MARK_EXTEND; 1907 break; 1908 } 1909 break; 1910 default: 1911 return; /* Done */ 1912 } 1913 1914 /* Save buttons state. */ 1915 if (cnt > 0) 1916 vd->vd_mstate |= event; 1917 else 1918 vd->vd_mstate &= ~event; 1919 1920 if (vtbuf_set_mark(&vw->vw_buf, mark, vd->vd_mx / vf->vf_width, 1921 vd->vd_my / vf->vf_height) == 1) { 1922 /* 1923 * We have something marked to copy, so update pointer to 1924 * window with selection. 1925 */ 1926 vt_resume_flush_timer(vw->vw_device, 0); 1927 1928 switch (mark) { 1929 case VTB_MARK_END: 1930 case VTB_MARK_WORD: 1931 case VTB_MARK_ROW: 1932 case VTB_MARK_EXTEND: 1933 break; 1934 default: 1935 /* Other types of mark do not require to copy data. */ 1936 return; 1937 } 1938 1939 /* Get current selection size in bytes. */ 1940 len = vtbuf_get_marked_len(&vw->vw_buf); 1941 if (len <= 0) 1942 return; 1943 1944 /* Reallocate buffer only if old one is too small. */ 1945 if (len > VD_PASTEBUFSZ(vd)) { 1946 VD_PASTEBUF(vd) = realloc(VD_PASTEBUF(vd), len, M_VT, 1947 M_WAITOK | M_ZERO); 1948 /* Update buffer size. */ 1949 VD_PASTEBUFSZ(vd) = len; 1950 } 1951 /* Request copy/paste buffer data, no more than `len' */ 1952 vtbuf_extract_marked(&vw->vw_buf, VD_PASTEBUF(vd), 1953 VD_PASTEBUFSZ(vd)); 1954 1955 VD_PASTEBUFLEN(vd) = len; 1956 1957 /* XXX VD_PASTEBUF(vd) have to be freed on shutdown/unload. */ 1958 } 1959} 1960 1961void 1962vt_mouse_state(int show) 1963{ 1964 struct vt_device *vd; 1965 struct vt_window *vw; 1966 1967 vd = main_vd; 1968 vw = vd->vd_curwindow; 1969 1970 switch (show) { 1971 case VT_MOUSE_HIDE: 1972 vw->vw_flags |= VWF_MOUSE_HIDE; 1973 break; 1974 case VT_MOUSE_SHOW: 1975 vw->vw_flags &= ~VWF_MOUSE_HIDE; 1976 break; 1977 } 1978 1979 /* Mark mouse position as dirty. */ 1980 vt_mark_mouse_position_as_dirty(vd); 1981 vt_resume_flush_timer(vw->vw_device, 0); 1982} 1983#endif 1984 1985static int 1986vtterm_mmap(struct terminal *tm, vm_ooffset_t offset, vm_paddr_t * paddr, 1987 int nprot, vm_memattr_t *memattr) 1988{ 1989 struct vt_window *vw = tm->tm_softc; 1990 struct vt_device *vd = vw->vw_device; 1991 1992 if (vd->vd_driver->vd_fb_mmap) 1993 return (vd->vd_driver->vd_fb_mmap(vd, offset, paddr, nprot, 1994 memattr)); 1995 1996 return (ENXIO); 1997} 1998 1999static int 2000vtterm_ioctl(struct terminal *tm, u_long cmd, caddr_t data, 2001 struct thread *td) 2002{ 2003 struct vt_window *vw = tm->tm_softc; 2004 struct vt_device *vd = vw->vw_device; 2005 keyboard_t *kbd; 2006 int error, i, s; 2007#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 2008 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 2009 int ival; 2010 2011 switch (cmd) { 2012 case _IO('v', 4): 2013 cmd = VT_RELDISP; 2014 break; 2015 case _IO('v', 5): 2016 cmd = VT_ACTIVATE; 2017 break; 2018 case _IO('v', 6): 2019 cmd = VT_WAITACTIVE; 2020 break; 2021 case _IO('K', 20): 2022 cmd = KDSKBSTATE; 2023 break; 2024 case _IO('K', 67): 2025 cmd = KDSETRAD; 2026 break; 2027 case _IO('K', 7): 2028 cmd = KDSKBMODE; 2029 break; 2030 case _IO('K', 8): 2031 cmd = KDMKTONE; 2032 break; 2033 case _IO('K', 63): 2034 cmd = KIOCSOUND; 2035 break; 2036 case _IO('K', 66): 2037 cmd = KDSETLED; 2038 break; 2039 case _IO('c', 110): 2040 cmd = CONS_SETKBD; 2041 break; 2042 default: 2043 goto skip_thunk; 2044 } 2045 ival = IOCPARM_IVAL(data); 2046 data = (caddr_t)&ival; 2047skip_thunk: 2048#endif 2049 2050 switch (cmd) { 2051 case KDSETRAD: /* set keyboard repeat & delay rates (old) */ 2052 if (*(int *)data & ~0x7f) 2053 return (EINVAL); 2054 /* FALLTHROUGH */ 2055 case GIO_KEYMAP: 2056 case PIO_KEYMAP: 2057 case GIO_DEADKEYMAP: 2058 case PIO_DEADKEYMAP: 2059 case GETFKEY: 2060 case SETFKEY: 2061 case KDGKBINFO: 2062 case KDGKBTYPE: 2063 case KDGETREPEAT: /* get keyboard repeat & delay rates */ 2064 case KDSETREPEAT: /* set keyboard repeat & delay rates (new) */ 2065 case KBADDKBD: /* add/remove keyboard to/from mux */ 2066 case KBRELKBD: { 2067 error = 0; 2068 2069 mtx_lock(&Giant); 2070 kbd = kbd_get_keyboard(vd->vd_keyboard); 2071 if (kbd != NULL) 2072 error = kbdd_ioctl(kbd, cmd, data); 2073 mtx_unlock(&Giant); 2074 if (error == ENOIOCTL) { 2075 if (cmd == KDGKBTYPE) { 2076 /* always return something? XXX */ 2077 *(int *)data = 0; 2078 } else { 2079 return (ENODEV); 2080 } 2081 } 2082 return (error); 2083 } 2084 case KDGKBSTATE: { /* get keyboard state (locks) */ 2085 error = 0; 2086 2087 if (vw == vd->vd_curwindow) { 2088 mtx_lock(&Giant); 2089 kbd = kbd_get_keyboard(vd->vd_keyboard); 2090 if (kbd != NULL) 2091 error = vt_save_kbd_state(vw, kbd); 2092 mtx_unlock(&Giant); 2093 2094 if (error != 0) 2095 return (error); 2096 } 2097 2098 *(int *)data = vw->vw_kbdstate & LOCK_MASK; 2099 2100 return (error); 2101 } 2102 case KDSKBSTATE: { /* set keyboard state (locks) */ 2103 int state; 2104 2105 state = *(int *)data; 2106 if (state & ~LOCK_MASK) 2107 return (EINVAL); 2108 2109 vw->vw_kbdstate &= ~LOCK_MASK; 2110 vw->vw_kbdstate |= state; 2111 2112 error = 0; 2113 if (vw == vd->vd_curwindow) { 2114 mtx_lock(&Giant); 2115 kbd = kbd_get_keyboard(vd->vd_keyboard); 2116 if (kbd != NULL) 2117 error = vt_update_kbd_state(vw, kbd); 2118 mtx_unlock(&Giant); 2119 } 2120 2121 return (error); 2122 } 2123 case KDGETLED: { /* get keyboard LED status */ 2124 error = 0; 2125 2126 if (vw == vd->vd_curwindow) { 2127 mtx_lock(&Giant); 2128 kbd = kbd_get_keyboard(vd->vd_keyboard); 2129 if (kbd != NULL) 2130 error = vt_save_kbd_leds(vw, kbd); 2131 mtx_unlock(&Giant); 2132 2133 if (error != 0) 2134 return (error); 2135 } 2136 2137 *(int *)data = vw->vw_kbdstate & LED_MASK; 2138 2139 return (error); 2140 } 2141 case KDSETLED: { /* set keyboard LED status */ 2142 int leds; 2143 2144 leds = *(int *)data; 2145 if (leds & ~LED_MASK) 2146 return (EINVAL); 2147 2148 vw->vw_kbdstate &= ~LED_MASK; 2149 vw->vw_kbdstate |= leds; 2150 2151 error = 0; 2152 if (vw == vd->vd_curwindow) { 2153 mtx_lock(&Giant); 2154 kbd = kbd_get_keyboard(vd->vd_keyboard); 2155 if (kbd != NULL) 2156 error = vt_update_kbd_leds(vw, kbd); 2157 mtx_unlock(&Giant); 2158 } 2159 2160 return (error); 2161 } 2162 case KDGKBMODE: { 2163 error = 0; 2164 2165 if (vw == vd->vd_curwindow) { 2166 mtx_lock(&Giant); 2167 kbd = kbd_get_keyboard(vd->vd_keyboard); 2168 if (kbd != NULL) 2169 error = vt_save_kbd_mode(vw, kbd); 2170 mtx_unlock(&Giant); 2171 2172 if (error != 0) 2173 return (error); 2174 } 2175 2176 *(int *)data = vw->vw_kbdmode; 2177 2178 return (error); 2179 } 2180 case KDSKBMODE: { 2181 int mode; 2182 2183 mode = *(int *)data; 2184 switch (mode) { 2185 case K_XLATE: 2186 case K_RAW: 2187 case K_CODE: 2188 vw->vw_kbdmode = mode; 2189 2190 error = 0; 2191 if (vw == vd->vd_curwindow) { 2192 mtx_lock(&Giant); 2193 kbd = kbd_get_keyboard(vd->vd_keyboard); 2194 if (kbd != NULL) 2195 error = vt_update_kbd_mode(vw, kbd); 2196 mtx_unlock(&Giant); 2197 } 2198 2199 return (error); 2200 default: 2201 return (EINVAL); 2202 } 2203 } 2204 case FBIOGTYPE: 2205 case FBIO_GETWINORG: /* get frame buffer window origin */ 2206 case FBIO_GETDISPSTART: /* get display start address */ 2207 case FBIO_GETLINEWIDTH: /* get scan line width in bytes */ 2208 case FBIO_BLANK: /* blank display */ 2209 if (vd->vd_driver->vd_fb_ioctl) 2210 return (vd->vd_driver->vd_fb_ioctl(vd, cmd, data, td)); 2211 break; 2212 case CONS_BLANKTIME: 2213 /* XXX */ 2214 return (0); 2215 case CONS_GET: 2216 /* XXX */ 2217 *(int *)data = M_CG640x480; 2218 return (0); 2219 case CONS_BELLTYPE: /* set bell type sound */ 2220 if ((*(int *)data) & CONS_QUIET_BELL) 2221 vd->vd_flags |= VDF_QUIET_BELL; 2222 else 2223 vd->vd_flags &= ~VDF_QUIET_BELL; 2224 return (0); 2225 case CONS_GETINFO: { 2226 vid_info_t *vi = (vid_info_t *)data; 2227 if (vi->size != sizeof(struct vid_info)) 2228 return (EINVAL); 2229 2230 if (vw == vd->vd_curwindow) { 2231 kbd = kbd_get_keyboard(vd->vd_keyboard); 2232 if (kbd != NULL) 2233 vt_save_kbd_state(vw, kbd); 2234 } 2235 2236 vi->m_num = vd->vd_curwindow->vw_number + 1; 2237 vi->mk_keylock = vw->vw_kbdstate & LOCK_MASK; 2238 /* XXX: other fields! */ 2239 return (0); 2240 } 2241 case CONS_GETVERS: 2242 *(int *)data = 0x200; 2243 return (0); 2244 case CONS_MODEINFO: 2245 /* XXX */ 2246 return (0); 2247 case CONS_MOUSECTL: { 2248 mouse_info_t *mouse = (mouse_info_t*)data; 2249 2250 /* 2251 * All the commands except MOUSE_SHOW nd MOUSE_HIDE 2252 * should not be applied to individual TTYs, but only to 2253 * consolectl. 2254 */ 2255 switch (mouse->operation) { 2256 case MOUSE_HIDE: 2257 if (vd->vd_flags & VDF_MOUSECURSOR) { 2258 vd->vd_flags &= ~VDF_MOUSECURSOR; 2259#ifndef SC_NO_CUTPASTE 2260 vt_mouse_state(VT_MOUSE_HIDE); 2261#endif 2262 } 2263 return (0); 2264 case MOUSE_SHOW: 2265 if (!(vd->vd_flags & VDF_MOUSECURSOR)) { 2266 vd->vd_flags |= VDF_MOUSECURSOR; 2267 vd->vd_mx = vd->vd_width / 2; 2268 vd->vd_my = vd->vd_height / 2; 2269#ifndef SC_NO_CUTPASTE 2270 vt_mouse_state(VT_MOUSE_SHOW); 2271#endif 2272 } 2273 return (0); 2274 default: 2275 return (EINVAL); 2276 } 2277 } 2278 case PIO_VFONT: { 2279 struct vt_font *vf; 2280 2281 if (vd->vd_flags & VDF_TEXTMODE) 2282 return (ENOTSUP); 2283 2284 error = vtfont_load((void *)data, &vf); 2285 if (error != 0) 2286 return (error); 2287 2288 error = vt_change_font(vw, vf); 2289 vtfont_unref(vf); 2290 return (error); 2291 } 2292 case PIO_VFONT_DEFAULT: { 2293 /* Reset to default font. */ 2294 error = vt_change_font(vw, &vt_font_default); 2295 return (error); 2296 } 2297 case GIO_SCRNMAP: { 2298 scrmap_t *sm = (scrmap_t *)data; 2299 2300 /* We don't have screen maps, so return a handcrafted one. */ 2301 for (i = 0; i < 256; i++) 2302 sm->scrmap[i] = i; 2303 return (0); 2304 } 2305 case KDSETMODE: 2306 /* 2307 * FIXME: This implementation is incomplete compared to 2308 * syscons. 2309 */ 2310 switch (*(int *)data) { 2311 case KD_TEXT: 2312 case KD_TEXT1: 2313 case KD_PIXEL: 2314 vw->vw_flags &= ~VWF_GRAPHICS; 2315 break; 2316 case KD_GRAPHICS: 2317 vw->vw_flags |= VWF_GRAPHICS; 2318 break; 2319 } 2320 return (0); 2321 case KDENABIO: /* allow io operations */ 2322 error = priv_check(td, PRIV_IO); 2323 if (error != 0) 2324 return (error); 2325 error = securelevel_gt(td->td_ucred, 0); 2326 if (error != 0) 2327 return (error); 2328#if defined(__i386__) 2329 td->td_frame->tf_eflags |= PSL_IOPL; 2330#elif defined(__amd64__) 2331 td->td_frame->tf_rflags |= PSL_IOPL; 2332#endif 2333 return (0); 2334 case KDDISABIO: /* disallow io operations (default) */ 2335#if defined(__i386__) 2336 td->td_frame->tf_eflags &= ~PSL_IOPL; 2337#elif defined(__amd64__) 2338 td->td_frame->tf_rflags &= ~PSL_IOPL; 2339#endif 2340 return (0); 2341 case KDMKTONE: /* sound the bell */ 2342 vtterm_beep(tm, *(u_int *)data); 2343 return (0); 2344 case KIOCSOUND: /* make tone (*data) hz */ 2345 /* TODO */ 2346 return (0); 2347 case CONS_SETKBD: /* set the new keyboard */ 2348 mtx_lock(&Giant); 2349 error = 0; 2350 if (vd->vd_keyboard != *(int *)data) { 2351 kbd = kbd_get_keyboard(*(int *)data); 2352 if (kbd == NULL) { 2353 mtx_unlock(&Giant); 2354 return (EINVAL); 2355 } 2356 i = kbd_allocate(kbd->kb_name, kbd->kb_unit, 2357 (void *)vd, vt_kbdevent, vd); 2358 if (i >= 0) { 2359 if (vd->vd_keyboard != -1) { 2360 vt_save_kbd_state(vd->vd_curwindow, kbd); 2361 kbd_release(kbd, (void *)vd); 2362 } 2363 kbd = kbd_get_keyboard(i); 2364 vd->vd_keyboard = i; 2365 2366 vt_update_kbd_mode(vd->vd_curwindow, kbd); 2367 vt_update_kbd_state(vd->vd_curwindow, kbd); 2368 } else { 2369 error = EPERM; /* XXX */ 2370 } 2371 } 2372 mtx_unlock(&Giant); 2373 return (error); 2374 case CONS_RELKBD: /* release the current keyboard */ 2375 mtx_lock(&Giant); 2376 error = 0; 2377 if (vd->vd_keyboard != -1) { 2378 kbd = kbd_get_keyboard(vd->vd_keyboard); 2379 if (kbd == NULL) { 2380 mtx_unlock(&Giant); 2381 return (EINVAL); 2382 } 2383 vt_save_kbd_state(vd->vd_curwindow, kbd); 2384 error = kbd_release(kbd, (void *)vd); 2385 if (error == 0) { 2386 vd->vd_keyboard = -1; 2387 } 2388 } 2389 mtx_unlock(&Giant); 2390 return (error); 2391 case VT_ACTIVATE: { 2392 int win; 2393 win = *(int *)data - 1; 2394 DPRINTF(5, "%s%d: VT_ACTIVATE ttyv%d ", SC_DRIVER_NAME, 2395 VT_UNIT(vw), win); 2396 if ((win >= VT_MAXWINDOWS) || (win < 0)) 2397 return (EINVAL); 2398 return (vt_proc_window_switch(vd->vd_windows[win])); 2399 } 2400 case VT_GETACTIVE: 2401 *(int *)data = vd->vd_curwindow->vw_number + 1; 2402 return (0); 2403 case VT_GETINDEX: 2404 *(int *)data = vw->vw_number + 1; 2405 return (0); 2406 case VT_LOCKSWITCH: 2407 /* TODO: Check current state, switching can be in progress. */ 2408 if ((*(int *)data) == 0x01) 2409 vw->vw_flags |= VWF_VTYLOCK; 2410 else if ((*(int *)data) == 0x02) 2411 vw->vw_flags &= ~VWF_VTYLOCK; 2412 else 2413 return (EINVAL); 2414 return (0); 2415 case VT_OPENQRY: 2416 VT_LOCK(vd); 2417 for (i = 0; i < VT_MAXWINDOWS; i++) { 2418 vw = vd->vd_windows[i]; 2419 if (vw == NULL) 2420 continue; 2421 if (!(vw->vw_flags & VWF_OPENED)) { 2422 *(int *)data = vw->vw_number + 1; 2423 VT_UNLOCK(vd); 2424 return (0); 2425 } 2426 } 2427 VT_UNLOCK(vd); 2428 return (EINVAL); 2429 case VT_WAITACTIVE: { 2430 unsigned int idx; 2431 2432 error = 0; 2433 2434 idx = *(unsigned int *)data; 2435 if (idx > VT_MAXWINDOWS) 2436 return (EINVAL); 2437 if (idx > 0) 2438 vw = vd->vd_windows[idx - 1]; 2439 2440 VT_LOCK(vd); 2441 while (vd->vd_curwindow != vw && error == 0) 2442 error = cv_wait_sig(&vd->vd_winswitch, &vd->vd_lock); 2443 VT_UNLOCK(vd); 2444 return (error); 2445 } 2446 case VT_SETMODE: { /* set screen switcher mode */ 2447 struct vt_mode *mode; 2448 struct proc *p1; 2449 2450 mode = (struct vt_mode *)data; 2451 DPRINTF(5, "%s%d: VT_SETMODE ", SC_DRIVER_NAME, VT_UNIT(vw)); 2452 if (vw->vw_smode.mode == VT_PROCESS) { 2453 p1 = pfind(vw->vw_pid); 2454 if (vw->vw_proc == p1 && vw->vw_proc != td->td_proc) { 2455 if (p1) 2456 PROC_UNLOCK(p1); 2457 DPRINTF(5, "error EPERM\n"); 2458 return (EPERM); 2459 } 2460 if (p1) 2461 PROC_UNLOCK(p1); 2462 } 2463 if (mode->mode == VT_AUTO) { 2464 vw->vw_smode.mode = VT_AUTO; 2465 vw->vw_proc = NULL; 2466 vw->vw_pid = 0; 2467 DPRINTF(5, "VT_AUTO, "); 2468 if (vw == vw->vw_device->vd_windows[VT_CONSWINDOW]) 2469 cnavailable(vw->vw_terminal->consdev, TRUE); 2470 /* were we in the middle of the vty switching process? */ 2471 if (finish_vt_rel(vw, TRUE, &s) == 0) 2472 DPRINTF(5, "reset WAIT_REL, "); 2473 if (finish_vt_acq(vw) == 0) 2474 DPRINTF(5, "reset WAIT_ACQ, "); 2475 return (0); 2476 } else if (mode->mode == VT_PROCESS) { 2477 if (!ISSIGVALID(mode->relsig) || 2478 !ISSIGVALID(mode->acqsig) || 2479 !ISSIGVALID(mode->frsig)) { 2480 DPRINTF(5, "error EINVAL\n"); 2481 return (EINVAL); 2482 } 2483 DPRINTF(5, "VT_PROCESS %d, ", td->td_proc->p_pid); 2484 bcopy(data, &vw->vw_smode, sizeof(struct vt_mode)); 2485 vw->vw_proc = td->td_proc; 2486 vw->vw_pid = vw->vw_proc->p_pid; 2487 if (vw == vw->vw_device->vd_windows[VT_CONSWINDOW]) 2488 cnavailable(vw->vw_terminal->consdev, FALSE); 2489 } else { 2490 DPRINTF(5, "VT_SETMODE failed, unknown mode %d\n", 2491 mode->mode); 2492 return (EINVAL); 2493 } 2494 DPRINTF(5, "\n"); 2495 return (0); 2496 } 2497 case VT_GETMODE: /* get screen switcher mode */ 2498 bcopy(&vw->vw_smode, data, sizeof(struct vt_mode)); 2499 return (0); 2500 2501 case VT_RELDISP: /* screen switcher ioctl */ 2502 /* 2503 * This must be the current vty which is in the VT_PROCESS 2504 * switching mode... 2505 */ 2506 if ((vw != vd->vd_curwindow) || (vw->vw_smode.mode != 2507 VT_PROCESS)) { 2508 return (EINVAL); 2509 } 2510 /* ...and this process is controlling it. */ 2511 if (vw->vw_proc != td->td_proc) { 2512 return (EPERM); 2513 } 2514 error = EINVAL; 2515 switch(*(int *)data) { 2516 case VT_FALSE: /* user refuses to release screen, abort */ 2517 if ((error = finish_vt_rel(vw, FALSE, &s)) == 0) 2518 DPRINTF(5, "%s%d: VT_RELDISP: VT_FALSE\n", 2519 SC_DRIVER_NAME, VT_UNIT(vw)); 2520 break; 2521 case VT_TRUE: /* user has released screen, go on */ 2522 /* finish_vt_rel(..., TRUE, ...) should not be locked */ 2523 if (vw->vw_flags & VWF_SWWAIT_REL) { 2524 if ((error = finish_vt_rel(vw, TRUE, &s)) == 0) 2525 DPRINTF(5, "%s%d: VT_RELDISP: VT_TRUE\n", 2526 SC_DRIVER_NAME, VT_UNIT(vw)); 2527 } else { 2528 error = EINVAL; 2529 } 2530 return (error); 2531 case VT_ACKACQ: /* acquire acknowledged, switch completed */ 2532 if ((error = finish_vt_acq(vw)) == 0) 2533 DPRINTF(5, "%s%d: VT_RELDISP: VT_ACKACQ\n", 2534 SC_DRIVER_NAME, VT_UNIT(vw)); 2535 break; 2536 default: 2537 break; 2538 } 2539 return (error); 2540 } 2541 2542 return (ENOIOCTL); 2543} 2544 2545static struct vt_window * 2546vt_allocate_window(struct vt_device *vd, unsigned int window) 2547{ 2548 struct vt_window *vw; 2549 struct terminal *tm; 2550 term_pos_t size; 2551 struct winsize wsz; 2552 2553 vw = malloc(sizeof *vw, M_VT, M_WAITOK|M_ZERO); 2554 vw->vw_device = vd; 2555 vw->vw_number = window; 2556 vw->vw_kbdmode = K_XLATE; 2557 2558 if ((vd->vd_flags & VDF_TEXTMODE) == 0) { 2559 vw->vw_font = vtfont_ref(&vt_font_default); 2560 vt_compute_drawable_area(vw); 2561 } 2562 2563 vt_termsize(vd, vw->vw_font, &size); 2564 vt_winsize(vd, vw->vw_font, &wsz); 2565 vtbuf_init(&vw->vw_buf, &size); 2566 2567 tm = vw->vw_terminal = terminal_alloc(&vt_termclass, vw); 2568 terminal_set_winsize(tm, &wsz); 2569 vd->vd_windows[window] = vw; 2570 callout_init(&vw->vw_proc_dead_timer, 0); 2571 2572 return (vw); 2573} 2574 2575void 2576vt_upgrade(struct vt_device *vd) 2577{ 2578 struct vt_window *vw; 2579 unsigned int i; 2580 int register_handlers; 2581 2582 if (!vty_enabled(VTY_VT)) 2583 return; 2584 if (main_vd->vd_driver == NULL) 2585 return; 2586 2587 for (i = 0; i < VT_MAXWINDOWS; i++) { 2588 vw = vd->vd_windows[i]; 2589 if (vw == NULL) { 2590 /* New window. */ 2591 vw = vt_allocate_window(vd, i); 2592 } 2593 if (!(vw->vw_flags & VWF_READY)) { 2594 callout_init(&vw->vw_proc_dead_timer, 0); 2595 terminal_maketty(vw->vw_terminal, "v%r", VT_UNIT(vw)); 2596 vw->vw_flags |= VWF_READY; 2597 if (vw->vw_flags & VWF_CONSOLE) { 2598 /* For existing console window. */ 2599 EVENTHANDLER_REGISTER(shutdown_pre_sync, 2600 vt_window_switch, vw, SHUTDOWN_PRI_DEFAULT); 2601 } 2602 } 2603 2604 } 2605 VT_LOCK(vd); 2606 if (vd->vd_curwindow == NULL) 2607 vd->vd_curwindow = vd->vd_windows[VT_CONSWINDOW]; 2608 2609 register_handlers = 0; 2610 if (!(vd->vd_flags & VDF_ASYNC)) { 2611 /* Attach keyboard. */ 2612 vt_allocate_keyboard(vd); 2613 2614 /* Init 25 Hz timer. */ 2615 callout_init_mtx(&vd->vd_timer, &vd->vd_lock, 0); 2616 2617 /* Start timer when everything ready. */ 2618 vd->vd_flags |= VDF_ASYNC; 2619 callout_reset(&vd->vd_timer, hz / VT_TIMERFREQ, vt_timer, vd); 2620 vd->vd_timer_armed = 1; 2621 register_handlers = 1; 2622 } 2623 2624 VT_UNLOCK(vd); 2625 2626 /* Refill settings with new sizes. */ 2627 vt_resize(vd); 2628 2629 if (register_handlers) { 2630 /* Register suspend/resume handlers. */ 2631 EVENTHANDLER_REGISTER(power_suspend_early, vt_suspend_handler, 2632 vd, EVENTHANDLER_PRI_ANY); 2633 EVENTHANDLER_REGISTER(power_resume, vt_resume_handler, vd, 2634 EVENTHANDLER_PRI_ANY); 2635 } 2636} 2637 2638static void 2639vt_resize(struct vt_device *vd) 2640{ 2641 struct vt_window *vw; 2642 int i; 2643 2644 for (i = 0; i < VT_MAXWINDOWS; i++) { 2645 vw = vd->vd_windows[i]; 2646 VT_LOCK(vd); 2647 /* Assign default font to window, if not textmode. */ 2648 if (!(vd->vd_flags & VDF_TEXTMODE) && vw->vw_font == NULL) 2649 vw->vw_font = vtfont_ref(&vt_font_default); 2650 VT_UNLOCK(vd); 2651 2652 /* Resize terminal windows */ 2653 while (vt_change_font(vw, vw->vw_font) == EBUSY) { 2654 DPRINTF(100, "%s: vt_change_font() is busy, " 2655 "window %d\n", __func__, i); 2656 } 2657 } 2658} 2659 2660static void 2661vt_replace_backend(const struct vt_driver *drv, void *softc) 2662{ 2663 struct vt_device *vd; 2664 2665 vd = main_vd; 2666 2667 if (vd->vd_flags & VDF_ASYNC) { 2668 /* Stop vt_flush periodic task. */ 2669 VT_LOCK(vd); 2670 vt_suspend_flush_timer(vd); 2671 VT_UNLOCK(vd); 2672 /* 2673 * Mute current terminal until we done. vt_change_font (called 2674 * from vt_resize) will unmute it. 2675 */ 2676 terminal_mute(vd->vd_curwindow->vw_terminal, 1); 2677 } 2678 2679 /* 2680 * Reset VDF_TEXTMODE flag, driver who require that flag (vt_vga) will 2681 * set it. 2682 */ 2683 VT_LOCK(vd); 2684 vd->vd_flags &= ~VDF_TEXTMODE; 2685 2686 if (drv != NULL) { 2687 /* 2688 * We want to upgrade from the current driver to the 2689 * given driver. 2690 */ 2691 2692 vd->vd_prev_driver = vd->vd_driver; 2693 vd->vd_prev_softc = vd->vd_softc; 2694 vd->vd_driver = drv; 2695 vd->vd_softc = softc; 2696 2697 vd->vd_driver->vd_init(vd); 2698 } else if (vd->vd_prev_driver != NULL && vd->vd_prev_softc != NULL) { 2699 /* 2700 * No driver given: we want to downgrade to the previous 2701 * driver. 2702 */ 2703 const struct vt_driver *old_drv; 2704 void *old_softc; 2705 2706 old_drv = vd->vd_driver; 2707 old_softc = vd->vd_softc; 2708 2709 vd->vd_driver = vd->vd_prev_driver; 2710 vd->vd_softc = vd->vd_prev_softc; 2711 vd->vd_prev_driver = NULL; 2712 vd->vd_prev_softc = NULL; 2713 2714 vd->vd_flags |= VDF_DOWNGRADE; 2715 2716 vd->vd_driver->vd_init(vd); 2717 2718 if (old_drv->vd_fini) 2719 old_drv->vd_fini(vd, old_softc); 2720 2721 vd->vd_flags &= ~VDF_DOWNGRADE; 2722 } 2723 2724 VT_UNLOCK(vd); 2725 2726 /* Update windows sizes and initialize last items. */ 2727 vt_upgrade(vd); 2728 2729#ifdef DEV_SPLASH 2730 if (vd->vd_flags & VDF_SPLASH) 2731 vtterm_splash(vd); 2732#endif 2733 2734 if (vd->vd_flags & VDF_ASYNC) { 2735 /* Allow to put chars now. */ 2736 terminal_mute(vd->vd_curwindow->vw_terminal, 0); 2737 /* Rerun timer for screen updates. */ 2738 vt_resume_flush_timer(vd, 0); 2739 } 2740 2741 /* 2742 * Register as console. If it already registered, cnadd() will ignore 2743 * it. 2744 */ 2745 termcn_cnregister(vd->vd_windows[VT_CONSWINDOW]->vw_terminal); 2746} 2747 2748static void 2749vt_suspend_handler(void *priv) 2750{ 2751 struct vt_device *vd; 2752 2753 vd = priv; 2754 if (vd->vd_driver != NULL && vd->vd_driver->vd_suspend != NULL) 2755 vd->vd_driver->vd_suspend(vd); 2756} 2757 2758static void 2759vt_resume_handler(void *priv) 2760{ 2761 struct vt_device *vd; 2762 2763 vd = priv; 2764 if (vd->vd_driver != NULL && vd->vd_driver->vd_resume != NULL) 2765 vd->vd_driver->vd_resume(vd); 2766} 2767 2768void 2769vt_allocate(const struct vt_driver *drv, void *softc) 2770{ 2771 2772 if (!vty_enabled(VTY_VT)) 2773 return; 2774 2775 if (main_vd->vd_driver == NULL) { 2776 main_vd->vd_driver = drv; 2777 printf("VT: initialize with new VT driver \"%s\".\n", 2778 drv->vd_name); 2779 } else { 2780 /* 2781 * Check if have rights to replace current driver. For example: 2782 * it is bad idea to replace KMS driver with generic VGA one. 2783 */ 2784 if (drv->vd_priority <= main_vd->vd_driver->vd_priority) { 2785 printf("VT: Driver priority %d too low. Current %d\n ", 2786 drv->vd_priority, main_vd->vd_driver->vd_priority); 2787 return; 2788 } 2789 printf("VT: Replacing driver \"%s\" with new \"%s\".\n", 2790 main_vd->vd_driver->vd_name, drv->vd_name); 2791 } 2792 2793 vt_replace_backend(drv, softc); 2794} 2795 2796void 2797vt_deallocate(const struct vt_driver *drv, void *softc) 2798{ 2799 2800 if (!vty_enabled(VTY_VT)) 2801 return; 2802 2803 if (main_vd->vd_prev_driver == NULL || 2804 main_vd->vd_driver != drv || 2805 main_vd->vd_softc != softc) 2806 return; 2807 2808 printf("VT: Switching back from \"%s\" to \"%s\".\n", 2809 main_vd->vd_driver->vd_name, main_vd->vd_prev_driver->vd_name); 2810 2811 vt_replace_backend(NULL, NULL); 2812} 2813 2814void 2815vt_suspend(struct vt_device *vd) 2816{ 2817 int error; 2818 2819 if (vt_suspendswitch == 0) 2820 return; 2821 /* Save current window. */ 2822 vd->vd_savedwindow = vd->vd_curwindow; 2823 /* Ask holding process to free window and switch to console window */ 2824 vt_proc_window_switch(vd->vd_windows[VT_CONSWINDOW]); 2825 2826 /* Wait for the window switch to complete. */ 2827 error = 0; 2828 VT_LOCK(vd); 2829 while (vd->vd_curwindow != vd->vd_windows[VT_CONSWINDOW] && error == 0) 2830 error = cv_wait_sig(&vd->vd_winswitch, &vd->vd_lock); 2831 VT_UNLOCK(vd); 2832} 2833 2834void 2835vt_resume(struct vt_device *vd) 2836{ 2837 2838 if (vt_suspendswitch == 0) 2839 return; 2840 /* Switch back to saved window, if any */ 2841 vt_proc_window_switch(vd->vd_savedwindow); 2842 vd->vd_savedwindow = NULL; 2843} 2844