1 /*- 2 * Copyright (c) 1992-1998 Søren Schmidt 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to The DragonFly Project 6 * by Sascha Wildner <saw@online.de> 7 * 8 * Simple font scaling code by Sascha Wildner and Matthew Dillon 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer, 15 * without modification, immediately at the beginning of the file. 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 * 3. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 * 33 * $FreeBSD: /usr/local/www/cvsroot/FreeBSD/src/sys/dev/syscons/syscons.c,v 1.336.2.17 2004/03/25 08:41:09 ru Exp $ 34 */ 35 36 #include "use_splash.h" 37 #include "opt_syscons.h" 38 #include "opt_ddb.h" 39 40 #include <sys/param.h> 41 #include <sys/systm.h> 42 #include <sys/eventhandler.h> 43 #include <sys/reboot.h> 44 #include <sys/conf.h> 45 #include <sys/proc.h> 46 #include <sys/priv.h> 47 #include <sys/signalvar.h> 48 #include <sys/sysctl.h> 49 #include <sys/taskqueue.h> 50 #include <sys/tty.h> 51 #include <sys/ttydefaults.h> /* for TTYDEF_* */ 52 #include <sys/kernel.h> 53 #include <sys/cons.h> 54 #include <sys/random.h> 55 #include <ddb/ddb.h> 56 57 #include <sys/thread2.h> 58 #include <sys/mutex2.h> 59 60 #include <machine/clock.h> 61 #include <machine/console.h> 62 #include <machine/psl.h> 63 #include <machine/pc/display.h> 64 #include <machine/frame.h> 65 #include <machine/framebuffer.h> 66 67 #include <dev/misc/kbd/kbdreg.h> 68 #include <dev/video/fb/fbreg.h> 69 #include <dev/video/fb/splashreg.h> 70 #include "syscons.h" 71 72 #define COLD 0 73 #define WARM 1 74 75 #define DEFAULT_BLANKTIME (5*60) /* 5 minutes */ 76 #define MAX_BLANKTIME (7*24*60*60) /* 7 days!? */ 77 78 #define SCRN_ASYNCOK 0x0001 79 #define SCRN_BULKUNLOCK 0x0002 80 81 #define KEYCODE_BS 0x0e /* "<-- Backspace" key, XXX */ 82 #define WANT_UNLOCK(m) do { \ 83 if (m) \ 84 syscons_unlock(); \ 85 } while (0) 86 87 #define WANT_LOCK(m) do { \ 88 if (m) \ 89 syscons_lock(); \ 90 } while(0) 91 92 93 MALLOC_DEFINE(M_SYSCONS, "syscons", "Syscons"); 94 95 typedef struct default_attr { 96 int std_color; /* normal hardware color */ 97 int rev_color; /* reverse hardware color */ 98 } default_attr; 99 100 static default_attr user_default = { 101 SC_NORM_ATTR, 102 SC_NORM_REV_ATTR, 103 }; 104 105 static default_attr kernel_default = { 106 SC_KERNEL_CONS_ATTR, 107 SC_KERNEL_CONS_REV_ATTR, 108 }; 109 110 static int sc_console_unit = -1; 111 static scr_stat *sc_console; 112 static struct tty *sc_console_tty; 113 static void *kernel_console_ts; 114 115 static char init_done = COLD; 116 static char shutdown_in_progress = FALSE; 117 static char sc_malloc = FALSE; 118 static char sc_filled_border = FALSE; /* filled initial VT border */ 119 120 static int saver_mode = CONS_NO_SAVER; /* LKM/user saver */ 121 static int run_scrn_saver = FALSE; /* should run the saver? */ 122 static long scrn_blank_time = 0; /* screen saver timeout value */ 123 #if NSPLASH > 0 124 static int scrn_blanked; /* # of blanked screen */ 125 static int sticky_splash = FALSE; 126 127 static void none_saver(sc_softc_t *sc, int blank) { } 128 static void (*current_saver)(sc_softc_t *, int) = none_saver; 129 #endif 130 131 /* 132 * Lock for asynchronous screen update thread, needed to safely modify the 133 * framebuffer information. 134 */ 135 static struct lock sc_asynctd_lk; 136 137 #if !defined(SC_NO_FONT_LOADING) && defined(SC_DFLT_FONT) 138 #include "font.h" 139 #endif 140 141 static bios_values_t bios_value; 142 143 static int enable_panic_key; 144 SYSCTL_INT(_machdep, OID_AUTO, enable_panic_key, CTLFLAG_RW, &enable_panic_key, 145 0, "Enable the panic key (CTRL-ALT-SHIFT-ESC)"); 146 static int syscons_async; 147 SYSCTL_INT(_kern, OID_AUTO, syscons_async, CTLFLAG_RW, &syscons_async, 148 0, "Asynchronous bulk syscons fb updates"); 149 150 static int desired_cols = 0; 151 TUNABLE_INT("kern.kms_columns", &desired_cols); 152 153 #define SC_CONSOLECTL 255 154 155 #define VIRTUAL_TTY(sc, x) ((SC_DEV((sc),(x)) != NULL) ? \ 156 (SC_DEV((sc),(x))->si_tty) : NULL) 157 #define ISTTYOPEN(tp) ((tp) && ((tp)->t_state & TS_ISOPEN)) 158 159 static int debugger; 160 static cdev_t cctl_dev; 161 static timeout_t blink_screen_callout; 162 static void sc_blink_screen(scr_stat *scp); 163 static struct mtx syscons_mtx = MTX_INITIALIZER("syscons"); 164 static struct lock syscons_blink_lk = LOCK_INITIALIZER("sblnk", 0, 0); 165 166 /* prototypes */ 167 static int scvidprobe(int unit, int flags, int cons); 168 static int sckbdprobe(int unit, int flags, int cons); 169 static void scmeminit(void *arg); 170 static int scdevtounit(cdev_t dev); 171 static kbd_callback_func_t sckbdevent; 172 static int scparam(struct tty *tp, struct termios *t); 173 static void scstart(struct tty *tp); 174 static void scinit(int unit, int flags); 175 #if 0 176 static void scterm(int unit, int flags); 177 #endif 178 static void scshutdown(void *arg, int howto); 179 static void sc_puts(scr_stat *scp, u_char *buf, int len); 180 static u_int scgetc(sc_softc_t *sc, u_int flags); 181 #define SCGETC_CN 1 182 #define SCGETC_NONBLOCK 2 183 static int sccngetch(int flags); 184 static void sccnupdate(scr_stat *scp); 185 static scr_stat *alloc_scp(sc_softc_t *sc, int vty); 186 static void init_scp(sc_softc_t *sc, int vty, scr_stat *scp); 187 static timeout_t scrn_timer; 188 static int and_region(int *s1, int *e1, int s2, int e2); 189 static void scrn_update(scr_stat *scp, int show_cursor, int flags); 190 static void scrn_update_thread(void *arg); 191 192 static void sc_fb_set_par(void *context, int pending); 193 #if NSPLASH > 0 194 static void sc_fb_blank(void *context, int pending); 195 #endif /* NSPLASH */ 196 197 #if NSPLASH > 0 198 static void scframebuffer_saver(sc_softc_t *sc, int show); 199 static int scsplash_callback(int event, void *arg); 200 static void scsplash_saver(sc_softc_t *sc, int show); 201 static int add_scrn_saver(void (*this_saver)(sc_softc_t *, int)); 202 static int remove_scrn_saver(void (*this_saver)(sc_softc_t *, int)); 203 static int set_scrn_saver_mode(scr_stat *scp, int mode, u_char *pal, int border); 204 static int restore_scrn_saver_mode(scr_stat *scp, int changemode); 205 static void stop_scrn_saver(sc_softc_t *sc, void (*saver)(sc_softc_t *, int)); 206 static int wait_scrn_saver_stop(sc_softc_t *sc, int need_unlock); 207 #define scsplash_stick(stick) (sticky_splash = (stick)) 208 #else /* !NSPLASH */ 209 #define scsplash_stick(stick) 210 #endif /* NSPLASH */ 211 212 static void do_switch_scr(sc_softc_t *sc); 213 static int vt_proc_alive(scr_stat *scp); 214 static int signal_vt_rel(scr_stat *scp); 215 static int signal_vt_acq(scr_stat *scp); 216 static int finish_vt_rel(scr_stat *scp, int release); 217 static int finish_vt_acq(scr_stat *scp); 218 static void exchange_scr(sc_softc_t *sc); 219 static void update_cursor_image(scr_stat *scp); 220 static int save_kbd_state(scr_stat *scp, int unlock); 221 static int update_kbd_state(scr_stat *scp, int state, int mask, int unlock); 222 static int update_kbd_leds(scr_stat *scp, int which); 223 static int sc_allocate_keyboard(sc_softc_t *sc, int unit); 224 225 /* 226 * Console locking support functions. 227 * 228 * We use mutex spinlocks here in order to allow reentrancy which should 229 * avoid issues during panics. 230 * 231 * A panic can stop a cpu while it is holding the syscons_mtx. If this 232 * occurs we try for up to 1/2 a second and then blow the spinlock away. 233 * The asynchronous update thread makes this happen more often. 234 */ 235 static void 236 syscons_lock(void) 237 { 238 if (panicstr || shutdown_in_progress) { 239 int retries = 500000; 240 while (mtx_spinlock_try(&syscons_mtx)) { 241 tsc_delay(1000); /* 1uS */ 242 if (--retries == 0) { 243 mtx_init(&syscons_mtx, "syscons"); 244 retries = 500000; 245 } 246 } 247 } else { 248 mtx_spinlock(&syscons_mtx); 249 } 250 } 251 252 /* 253 * Returns 0 on success, EAGAIN on failure. 254 */ 255 static int 256 syscons_lock_nonblock(void) 257 { 258 return(mtx_spinlock_try(&syscons_mtx)); 259 } 260 261 static void 262 syscons_unlock(void) 263 { 264 mtx_spinunlock(&syscons_mtx); 265 } 266 267 /* 268 * Console driver 269 */ 270 static cn_probe_t sccnprobe; 271 static cn_init_t sccninit; 272 static cn_init_t sccninit_fini; 273 static cn_getc_t sccngetc; 274 static cn_checkc_t sccncheckc; 275 static cn_putc_t sccnputc; 276 static cn_dbctl_t sccndbctl; 277 static cn_term_t sccnterm; 278 static cn_poll_t sccnpoll; 279 280 CONS_DRIVER(sc, sccnprobe, sccninit, sccninit_fini, sccnterm, 281 sccngetc, sccncheckc, sccnputc, sccndbctl, sccnpoll); 282 283 static d_open_t scopen; 284 static d_close_t scclose; 285 static d_read_t scread; 286 static d_ioctl_t scioctl; 287 static d_mmap_t scmmap; 288 289 static struct dev_ops sc_ops = { 290 { "sc", 0, D_TTY | D_MPSAFE }, 291 .d_open = scopen, 292 .d_close = scclose, 293 .d_read = scread, 294 .d_write = ttywrite, 295 .d_ioctl = scioctl, 296 .d_mmap = scmmap, 297 .d_kqfilter = ttykqfilter, 298 .d_revoke = ttyrevoke 299 }; 300 301 int 302 sc_probe_unit(int unit, int flags) 303 { 304 if ((flags & SC_EFI_FB) && (probe_efi_fb(0) != 0)) { 305 if (bootverbose) 306 kprintf("sc%d: no EFI framebuffer found.\n", unit); 307 flags &= ~SC_EFI_FB; 308 } 309 310 if (!(flags & SC_EFI_FB) && !scvidprobe(unit, flags, FALSE)) { 311 if (bootverbose) 312 kprintf("sc%d: no video adapter found.\n", unit); 313 return ENXIO; 314 } 315 316 /* syscons will be attached even when there is no keyboard */ 317 sckbdprobe(unit, flags, FALSE); 318 319 return 0; 320 } 321 322 int 323 register_framebuffer(struct fb_info *info) 324 { 325 sc_softc_t *sc; 326 327 /* For now ignore framebuffers, which don't replace the vga display */ 328 if (!info->is_vga_boot_display) 329 return 0; 330 331 lwkt_gettoken(&vga_token); 332 sc = sc_get_softc(0, (sc_console_unit == 0) ? SC_KERNEL_CONSOLE : 0); 333 if (sc == NULL) { 334 lwkt_reltoken(&vga_token); 335 kprintf("%s: sc_get_softc(%d, %d) returned NULL\n", __func__, 336 0, (sc_console_unit == 0) ? SC_KERNEL_CONSOLE : 0); 337 return 0; 338 } 339 340 /* Ignore this framebuffer if we already switched to KMS framebuffer */ 341 if (sc->fbi != NULL && sc->fbi != &efi_fb_info && 342 sc->fbi != sc->dummy_fb_info) { 343 lwkt_reltoken(&vga_token); 344 return 0; 345 } 346 347 if (sc->fb_set_par_task == NULL) { 348 sc->fb_set_par_task = kmalloc(sizeof(struct task), 349 M_SYSCONS, M_WAITOK | M_ZERO); 350 } 351 TASK_INIT(sc->fb_set_par_task, 0, sc_fb_set_par, sc); 352 #if NSPLASH > 0 353 if (sc->fb_blank_task == NULL) { 354 sc->fb_blank_task = kmalloc(sizeof(struct task), 355 M_SYSCONS, M_WAITOK | M_ZERO); 356 } 357 TASK_INIT(sc->fb_blank_task, 0, sc_fb_blank, sc); 358 #endif /* NSPLASH */ 359 360 /* 361 * Make sure that console messages don't interfere too much with 362 * modesetting. 363 */ 364 atomic_add_int(&sc->videoio_in_progress, 1); 365 366 /* Lock against synchronous and asynchronous screen updates */ 367 lockmgr(&sc_asynctd_lk, LK_EXCLUSIVE); 368 syscons_lock(); 369 sc->fbi = info; 370 sc->fbi_generation++; 371 syscons_unlock(); 372 373 kprintf("kms console: xpixels %d ypixels %d\n", 374 sc->fbi->width, sc->fbi->height); 375 sc_update_render(sc->cur_scp); 376 if (info->fbops.fb_set_par != NULL) 377 info->fbops.fb_set_par(info); 378 atomic_add_int(&sc->videoio_in_progress, -1); 379 380 sc->fb_blanked = FALSE; 381 if (sc->unit == sc_console_unit && sc->cur_scp->smode.mode != VT_AUTO) 382 cons_unavail = FALSE; 383 #if NSPLASH > 0 384 if (info->fbops.fb_blank != NULL) 385 add_scrn_saver(scframebuffer_saver); 386 #endif /* NSPLASH */ 387 388 lockmgr(&sc_asynctd_lk, LK_RELEASE); 389 lwkt_reltoken(&vga_token); 390 return 0; 391 } 392 393 void 394 unregister_framebuffer(struct fb_info *info) 395 { 396 sc_softc_t *sc; 397 398 lwkt_gettoken(&vga_token); 399 sc = sc_get_softc(0, (sc_console_unit == 0) ? SC_KERNEL_CONSOLE : 0); 400 if (sc == NULL) { 401 lwkt_reltoken(&vga_token); 402 kprintf("%s: sc_get_softc(%d, %d) returned NULL\n", __func__, 403 0, (sc_console_unit == 0) ? SC_KERNEL_CONSOLE : 0); 404 return; 405 } 406 407 if (sc->fbi != info) { 408 lwkt_reltoken(&vga_token); 409 return; 410 } 411 412 #if NSPLASH > 0 413 if (info->fbops.fb_blank != NULL) 414 remove_scrn_saver(scframebuffer_saver); 415 #endif /* NSPLASH */ 416 417 if (sc->fb_set_par_task != NULL && 418 taskqueue_cancel(taskqueue_thread[0], sc->fb_set_par_task, NULL)) { 419 taskqueue_drain(taskqueue_thread[0], sc->fb_set_par_task); 420 } 421 #if NSPLASH > 0 422 if (sc->fb_blank_task != NULL && 423 taskqueue_cancel(taskqueue_thread[0], sc->fb_blank_task, NULL)) { 424 taskqueue_drain(taskqueue_thread[0], sc->fb_blank_task); 425 } 426 #endif /* NSPLASH */ 427 sc->fb_blanked = TRUE; 428 if (sc->unit == sc_console_unit) 429 cons_unavail = TRUE; 430 431 if (sc->dummy_fb_info == NULL) { 432 sc->dummy_fb_info = kmalloc(sizeof(struct fb_info), 433 M_SYSCONS, M_WAITOK | M_ZERO); 434 } else { 435 memset(sc->dummy_fb_info, 0, sizeof(struct fb_info)); 436 } 437 *sc->dummy_fb_info = *sc->fbi; 438 sc->dummy_fb_info->vaddr = 0; 439 sc->dummy_fb_info->fbops.fb_set_par = NULL; 440 sc->dummy_fb_info->fbops.fb_blank = NULL; 441 sc->dummy_fb_info->fbops.fb_debug_enter = NULL; 442 443 /* Lock against synchronous and asynchronous screen updates */ 444 lockmgr(&sc_asynctd_lk, LK_EXCLUSIVE); 445 syscons_lock(); 446 sc->fbi = sc->dummy_fb_info; 447 syscons_unlock(); 448 lockmgr(&sc_asynctd_lk, LK_RELEASE); 449 450 lwkt_reltoken(&vga_token); 451 } 452 453 void 454 sc_font_scale(scr_stat *scp, int max_cols, int max_rows) 455 { 456 int cols, rows; 457 458 /* 459 * If columns not specified in /boot/loader.conf then 460 * calculate a non-fractional scaling that yields a 461 * reasonable number of rows and columns. If it is <0, 462 * don't scale at all. 463 */ 464 if (desired_cols == 0) { 465 int nomag = 1; 466 while (scp->xpixel / (scp->font_width * nomag) >= COL && 467 scp->ypixel / (scp->font_height * nomag) >= ROW) { 468 ++nomag; 469 } 470 if (nomag > 1) 471 --nomag; 472 cols = scp->xpixel / (scp->font_width * nomag); 473 } else if (desired_cols < 0) { 474 cols = scp->xpixel / scp->font_width; 475 } else { 476 cols = desired_cols; 477 } 478 scp->blk_width = scp->xpixel / cols; 479 scp->blk_height = scp->blk_width * scp->font_height / scp->font_width; 480 rows = scp->ypixel / scp->blk_height; 481 482 /* scp->xsize = scp->xpixel / scp->blk_width; total possible */ 483 scp->xsize = max_cols ? imin(max_cols, cols) : cols; 484 scp->ysize = max_rows ? imin(max_rows, rows) : rows; 485 } 486 487 /* probe video adapters, return TRUE if found */ 488 static int 489 scvidprobe(int unit, int flags, int cons) 490 { 491 /* 492 * Access the video adapter driver through the back door! 493 * Video adapter drivers need to be configured before syscons. 494 * However, when syscons is being probed as the low-level console, 495 * they have not been initialized yet. We force them to initialize 496 * themselves here. XXX 497 */ 498 vid_configure(cons ? VIO_PROBE_ONLY : 0); 499 500 return (vid_find_adapter("*", unit) >= 0); 501 } 502 503 /* probe the keyboard, return TRUE if found */ 504 static int 505 sckbdprobe(int unit, int flags, int cons) 506 { 507 /* access the keyboard driver through the backdoor! */ 508 kbd_configure(cons ? KB_CONF_PROBE_ONLY : 0); 509 510 return (kbd_find_keyboard("*", unit) >= 0); 511 } 512 513 static char * 514 adapter_name(video_adapter_t *adp) 515 { 516 static struct { 517 int type; 518 char *name[2]; 519 } names[] = { 520 { KD_MONO, { "MDA", "MDA" } }, 521 { KD_HERCULES, { "Hercules", "Hercules" } }, 522 { KD_CGA, { "CGA", "CGA" } }, 523 { KD_EGA, { "EGA", "EGA (mono)" } }, 524 { KD_VGA, { "VGA", "VGA (mono)" } }, 525 { KD_TGA, { "TGA", "TGA" } }, 526 { -1, { "Unknown", "Unknown" } }, 527 }; 528 int i; 529 530 for (i = 0; names[i].type != -1; ++i) 531 if (names[i].type == adp->va_type) 532 break; 533 return names[i].name[(adp->va_flags & V_ADP_COLOR) ? 0 : 1]; 534 } 535 536 int 537 sc_attach_unit(int unit, int flags) 538 { 539 sc_softc_t *sc; 540 scr_stat *scp; 541 int vc; 542 cdev_t dev; 543 flags &= ~SC_KERNEL_CONSOLE; 544 char tbuf[MAKEDEV_MINNBUF]; 545 546 if ((flags & SC_EFI_FB) && probe_efi_fb(0) != 0) 547 flags &= ~SC_EFI_FB; 548 549 if (sc_console_unit == unit) { 550 /* 551 * If this unit is being used as the system console, we need to 552 * adjust some variables and buffers before and after scinit(). 553 */ 554 /* assert(sc_console != NULL) */ 555 flags |= SC_KERNEL_CONSOLE; 556 scmeminit(NULL); 557 558 scinit(unit, flags); 559 560 if (sc_console->tsw->te_size > 0) { 561 /* assert(sc_console->ts != NULL); */ 562 kernel_console_ts = sc_console->ts; 563 sc_console->ts = kmalloc(sc_console->tsw->te_size, 564 M_SYSCONS, M_WAITOK); 565 bcopy(kernel_console_ts, sc_console->ts, sc_console->tsw->te_size); 566 (*sc_console->tsw->te_default_attr)(sc_console, 567 user_default.std_color, 568 user_default.rev_color); 569 } 570 } else { 571 scinit(unit, flags); 572 } 573 574 sc = sc_get_softc(unit, flags & SC_KERNEL_CONSOLE); 575 576 /* 577 * If this is the console we couldn't setup sc->dev before because 578 * malloc wasn't working. Set it up now. 579 */ 580 if (flags & SC_KERNEL_CONSOLE) { 581 KKASSERT(sc->dev == NULL); 582 sc->dev = kmalloc(sizeof(cdev_t)*sc->vtys, M_SYSCONS, M_WAITOK|M_ZERO); 583 sc->dev[0] = make_dev(&sc_ops, sc_console_unit*MAXCONS, UID_ROOT, 584 GID_WHEEL, 0600, "ttyv%s", makedev_unit_b32(tbuf, 585 sc_console_unit * MAXCONS)); 586 ttymalloc(&sc->dev[0]->si_tty); 587 sc->dev[0]->si_drv1 = sc_console; 588 } 589 590 /* 591 * Finish up the standard attach 592 */ 593 sc->config = flags; 594 callout_init_mp(&sc->scrn_timer_ch); 595 scp = SC_STAT(sc->dev[0]); 596 if (sc_console == NULL) /* sc_console_unit < 0 */ 597 sc_console = scp; 598 599 /* initialize cursor */ 600 if (!ISGRAPHSC(scp)) 601 update_cursor_image(scp); 602 603 /* get screen update going */ 604 scrn_timer(sc); 605 606 /* set up the keyboard */ 607 kbd_ioctl(sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode); 608 update_kbd_state(scp, scp->status, LOCK_MASK, FALSE); 609 610 kprintf("sc%d: %s <%d virtual consoles, flags=0x%x>\n", 611 unit, (sc->config & SC_EFI_FB) ? "EFI_FB" : adapter_name(sc->adp), 612 sc->vtys, sc->config); 613 if (bootverbose) { 614 kprintf("sc%d:", unit); 615 if (sc->adapter >= 0) 616 kprintf(" fb%d", sc->adapter); 617 if (sc->keyboard >= 0) 618 kprintf(", kbd%d", sc->keyboard); 619 if (scp->tsw) 620 kprintf(", terminal emulator: %s (%s)", 621 scp->tsw->te_name, scp->tsw->te_desc); 622 kprintf("\n"); 623 } 624 625 /* register a shutdown callback for the kernel console */ 626 if (sc_console_unit == unit) 627 EVENTHANDLER_REGISTER(shutdown_pre_sync, scshutdown, 628 (void *)(uintptr_t)unit, SHUTDOWN_PRI_DEFAULT); 629 630 /* 631 * create devices. 632 * 633 * The first vty already has struct tty and scr_stat initialized 634 * in scinit(). The other vtys will have these structs when 635 * first opened. 636 */ 637 for (vc = 1; vc < sc->vtys; vc++) { 638 dev = make_dev(&sc_ops, vc + unit * MAXCONS, 639 UID_ROOT, GID_WHEEL, 0600, "ttyv%s", 640 makedev_unit_b32(tbuf, vc + unit * MAXCONS)); 641 sc->dev[vc] = dev; 642 } 643 cctl_dev = make_dev(&sc_ops, SC_CONSOLECTL, 644 UID_ROOT, GID_WHEEL, 0600, "consolectl"); 645 cctl_dev->si_tty = ttymalloc(&sc_console_tty); 646 cctl_dev->si_drv1 = sc_console; 647 return 0; 648 } 649 650 static void 651 scmeminit(void *arg) 652 { 653 if (sc_malloc) 654 return; 655 sc_malloc = TRUE; 656 657 /* 658 * As soon as malloc() becomes functional, we had better allocate 659 * various buffers for the kernel console. 660 */ 661 662 if (sc_console_unit < 0) /* sc_console == NULL */ 663 return; 664 665 /* copy the temporary buffer to the final buffer */ 666 sc_alloc_scr_buffer(sc_console, TRUE, FALSE); 667 668 #ifndef SC_NO_CUTPASTE 669 sc_alloc_cut_buffer(sc_console, TRUE); 670 #endif 671 672 #ifndef SC_NO_HISTORY 673 /* initialize history buffer & pointers */ 674 sc_alloc_history_buffer(sc_console, 0, 0, TRUE); 675 #endif 676 677 /* Fill initial terminal border, efi_fb_info.vaddr should be non-NULL now */ 678 if (!sc_filled_border) { 679 sc_filled_border = TRUE; 680 sc_set_border(sc_console, sc_console->border); 681 } 682 } 683 684 SYSINIT(sc_mem, SI_BOOT1_POST, SI_ORDER_ANY, scmeminit, NULL); 685 686 static int 687 scdevtounit(cdev_t dev) 688 { 689 int vty = SC_VTY(dev); 690 691 if (vty == SC_CONSOLECTL) 692 return ((sc_console != NULL) ? sc_console->sc->unit : -1); 693 else if ((vty < 0) || (vty >= MAXCONS*sc_max_unit())) 694 return -1; 695 else 696 return vty/MAXCONS; 697 } 698 699 static int 700 scopen(struct dev_open_args *ap) 701 { 702 cdev_t dev = ap->a_head.a_dev; 703 int unit; 704 sc_softc_t *sc; 705 struct tty *tp; 706 scr_stat *scp; 707 keyarg_t key; 708 int error; 709 710 lwkt_gettoken(&vga_token); 711 unit = scdevtounit(dev); 712 DPRINTF(5, ("scopen: dev:%d,%d, unit:%d, vty:%d\n", 713 major(dev), minor(dev), unit, SC_VTY(dev))); 714 715 sc = sc_get_softc(unit, (sc_console_unit == unit) ? SC_KERNEL_CONSOLE : 0); 716 if (sc == NULL) { 717 lwkt_reltoken(&vga_token); 718 return ENXIO; 719 } 720 721 tp = ttymalloc(&dev->si_tty); 722 lwkt_gettoken(&tp->t_token); 723 tp->t_oproc = scstart; 724 tp->t_param = scparam; 725 tp->t_stop = nottystop; 726 727 tp->t_dev = dev; 728 729 if (!ISTTYOPEN(tp)) { 730 ttychars(tp); 731 /* Use the current setting of the <-- key as default VERASE. */ 732 /* If the Delete key is preferable, an stty is necessary */ 733 if (sc->kbd != NULL) { 734 key.keynum = KEYCODE_BS; 735 kbd_ioctl(sc->kbd, GIO_KEYMAPENT, (caddr_t)&key); 736 tp->t_cc[VERASE] = key.key.map[0]; 737 } 738 tp->t_iflag = TTYDEF_IFLAG; 739 tp->t_oflag = TTYDEF_OFLAG; 740 tp->t_cflag = TTYDEF_CFLAG; 741 tp->t_lflag = TTYDEF_LFLAG; 742 tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED; 743 scparam(tp, &tp->t_termios); 744 (*linesw[tp->t_line].l_modem)(tp, 1); 745 } 746 else 747 if (tp->t_state & TS_XCLUDE && priv_check_cred(ap->a_cred, PRIV_ROOT, 0)) { 748 lwkt_reltoken(&tp->t_token); 749 lwkt_reltoken(&vga_token); 750 return(EBUSY); 751 } 752 753 error = (*linesw[tp->t_line].l_open)(dev, tp); 754 755 scp = SC_STAT(dev); 756 if (scp == NULL) { 757 scp = dev->si_drv1 = alloc_scp(sc, SC_VTY(dev)); 758 syscons_lock(); 759 if (ISGRAPHSC(scp)) 760 sc_set_pixel_mode(scp, NULL, COL, ROW, 16); 761 syscons_unlock(); 762 } 763 if (!tp->t_winsize.ws_col && !tp->t_winsize.ws_row) { 764 tp->t_winsize.ws_col = scp->xsize; 765 tp->t_winsize.ws_row = scp->ysize; 766 } 767 768 /* 769 * Start optional support thread for syscons refreshes. This thread 770 * will execute the refresh without the syscons_lock held and will 771 * allow interrupts while it is doing so. 772 */ 773 if (scp->asynctd == NULL) { 774 lwkt_create(scrn_update_thread, scp, &scp->asynctd, NULL, 0, -1, 775 "syscons%d", SC_VTY(dev)); 776 } 777 lwkt_reltoken(&tp->t_token); 778 lwkt_reltoken(&vga_token); 779 780 return error; 781 } 782 783 static int 784 scclose(struct dev_close_args *ap) 785 { 786 cdev_t dev = ap->a_head.a_dev; 787 struct tty *tp = dev->si_tty; 788 scr_stat *scp; 789 790 lwkt_gettoken(&vga_token); 791 lwkt_gettoken(&tp->t_token); 792 if (SC_VTY(dev) != SC_CONSOLECTL) { 793 scp = SC_STAT(tp->t_dev); 794 /* were we in the middle of the VT switching process? */ 795 DPRINTF(5, ("sc%d: scclose(), ", scp->sc->unit)); 796 if ((scp == scp->sc->cur_scp) && (scp->sc->unit == sc_console_unit) && 797 !scp->sc->fb_blanked) { 798 cons_unavail = FALSE; 799 } 800 if (finish_vt_rel(scp, TRUE) == 0) /* force release */ 801 DPRINTF(5, ("reset WAIT_REL, ")); 802 if (finish_vt_acq(scp) == 0) /* force acknowledge */ 803 DPRINTF(5, ("reset WAIT_ACQ, ")); 804 syscons_lock(); 805 #if 0 /* notyet */ 806 if (scp == &main_console) { 807 scp->pid = 0; 808 scp->proc = NULL; 809 scp->smode.mode = VT_AUTO; 810 } 811 else { 812 sc_vtb_destroy(&scp->vtb); 813 sc_vtb_destroy(&scp->scr); 814 sc_free_history_buffer(scp, scp->ysize); 815 SC_STAT(dev) = NULL; 816 kfree(scp, M_SYSCONS); 817 } 818 #else 819 scp->pid = 0; 820 scp->proc = NULL; 821 scp->smode.mode = VT_AUTO; 822 #endif 823 scp->kbd_mode = K_XLATE; 824 syscons_unlock(); 825 if (scp == scp->sc->cur_scp) 826 kbd_ioctl(scp->sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode); 827 DPRINTF(5, ("done.\n")); 828 } 829 (*linesw[tp->t_line].l_close)(tp, ap->a_fflag); 830 ttyclose(tp); 831 lwkt_reltoken(&tp->t_token); 832 lwkt_reltoken(&vga_token); 833 834 return(0); 835 } 836 837 static int 838 scread(struct dev_read_args *ap) 839 { 840 int ret; 841 842 lwkt_gettoken(&vga_token); 843 sc_touch_scrn_saver(); 844 ret = ttyread(ap); 845 lwkt_reltoken(&vga_token); 846 return ret; 847 } 848 849 static int 850 sckbdevent(keyboard_t *thiskbd, int event, void *arg) 851 { 852 sc_softc_t *sc; 853 struct tty *cur_tty; 854 int c; 855 size_t len; 856 u_char *cp; 857 858 lwkt_gettoken(&vga_token); 859 /* 860 * WARNING: In early boot sc->dev may not be setup yet. 861 */ 862 sc = (sc_softc_t *)arg; 863 /* assert(thiskbd == sc->kbd) */ 864 865 switch (event) { 866 case KBDIO_KEYINPUT: 867 if (sc->kbd && sc->kbd->kb_flags & KB_POLLED) { 868 lwkt_reltoken(&vga_token); 869 return 0; 870 } 871 break; 872 case KBDIO_UNLOADING: 873 syscons_lock(); 874 sc->kbd = NULL; 875 sc->keyboard = -1; 876 syscons_unlock(); 877 kbd_release(thiskbd, (void *)&sc->keyboard); 878 lwkt_reltoken(&vga_token); 879 return 0; 880 default: 881 lwkt_reltoken(&vga_token); 882 return EINVAL; 883 } 884 885 /* 886 * Loop while there is still input to get from the keyboard. 887 * I don't think this is nessesary, and it doesn't fix 888 * the Xaccel-2.1 keyboard hang, but it can't hurt. XXX 889 */ 890 while ((c = scgetc(sc, SCGETC_NONBLOCK)) != NOKEY) { 891 cur_tty = VIRTUAL_TTY(sc, sc->cur_scp->index); 892 if (!ISTTYOPEN(cur_tty)) { 893 cur_tty = sc_console_tty; 894 if (!ISTTYOPEN(cur_tty)) 895 continue; 896 } 897 898 syscons_lock(); 899 if ((*sc->cur_scp->tsw->te_input)(sc->cur_scp, c, cur_tty)) { 900 syscons_unlock(); 901 continue; 902 } 903 syscons_unlock(); 904 905 lwkt_gettoken(&cur_tty->t_token); 906 907 switch (KEYFLAGS(c)) { 908 case 0x0000: /* normal key */ 909 (*linesw[cur_tty->t_line].l_rint)(KEYCHAR(c), cur_tty); 910 break; 911 case FKEY: /* function key, return string */ 912 cp = kbd_get_fkeystr(thiskbd, KEYCHAR(c), &len); 913 if (cp != NULL) { 914 while (len-- > 0) 915 (*linesw[cur_tty->t_line].l_rint)(*cp++, cur_tty); 916 } 917 break; 918 case MKEY: /* meta is active, prepend ESC */ 919 (*linesw[cur_tty->t_line].l_rint)(0x1b, cur_tty); 920 (*linesw[cur_tty->t_line].l_rint)(KEYCHAR(c), cur_tty); 921 break; 922 case BKEY: /* backtab fixed sequence (esc [ Z) */ 923 (*linesw[cur_tty->t_line].l_rint)(0x1b, cur_tty); 924 (*linesw[cur_tty->t_line].l_rint)('[', cur_tty); 925 (*linesw[cur_tty->t_line].l_rint)('Z', cur_tty); 926 break; 927 } 928 lwkt_reltoken(&cur_tty->t_token); 929 } 930 931 syscons_lock(); 932 sc->cur_scp->status |= MOUSE_HIDDEN; 933 syscons_unlock(); 934 935 lwkt_reltoken(&vga_token); 936 return 0; 937 } 938 939 static int 940 scparam(struct tty *tp, struct termios *t) 941 { 942 lwkt_gettoken(&tp->t_token); 943 tp->t_ispeed = t->c_ispeed; 944 tp->t_ospeed = t->c_ospeed; 945 tp->t_cflag = t->c_cflag; 946 lwkt_reltoken(&tp->t_token); 947 948 return 0; 949 } 950 951 static int 952 scioctl(struct dev_ioctl_args *ap) 953 { 954 cdev_t dev = ap->a_head.a_dev; 955 u_long cmd = ap->a_cmd; 956 caddr_t data = ap->a_data; 957 int flag = ap->a_fflag; 958 int error; 959 int i; 960 struct tty *tp; 961 sc_softc_t *sc; 962 scr_stat *scp; 963 964 lwkt_gettoken(&vga_token); 965 tp = dev->si_tty; 966 967 error = sc_vid_ioctl(tp, cmd, data, flag); 968 if (error != ENOIOCTL) { 969 lwkt_reltoken(&vga_token); 970 return error; 971 } 972 973 #ifndef SC_NO_HISTORY 974 error = sc_hist_ioctl(tp, cmd, data, flag); 975 if (error != ENOIOCTL) { 976 lwkt_reltoken(&vga_token); 977 return error; 978 } 979 #endif 980 981 #ifndef SC_NO_SYSMOUSE 982 error = sc_mouse_ioctl(tp, cmd, data, flag); 983 if (error != ENOIOCTL) { 984 lwkt_reltoken(&vga_token); 985 return error; 986 } 987 #endif 988 989 scp = SC_STAT(tp->t_dev); 990 /* assert(scp != NULL) */ 991 /* scp is sc_console, if SC_VTY(dev) == SC_CONSOLECTL. */ 992 sc = scp->sc; 993 994 if (scp->tsw) { 995 syscons_lock(); 996 error = (*scp->tsw->te_ioctl)(scp, tp, cmd, data, flag); 997 syscons_unlock(); 998 if (error != ENOIOCTL) { 999 lwkt_reltoken(&vga_token); 1000 return error; 1001 } 1002 } 1003 1004 switch (cmd) { /* process console hardware related ioctl's */ 1005 1006 case GIO_ATTR: /* get current attributes */ 1007 /* this ioctl is not processed here, but in the terminal emulator */ 1008 lwkt_reltoken(&vga_token); 1009 return ENOTTY; 1010 1011 case GIO_COLOR: /* is this a color console ? */ 1012 if (sc->fbi != NULL) 1013 *(int *)data = 1; 1014 else 1015 *(int *)data = (sc->adp->va_flags & V_ADP_COLOR) ? 1 : 0; 1016 lwkt_reltoken(&vga_token); 1017 return 0; 1018 1019 case CONS_BLANKTIME: /* set screen saver timeout (0 = no saver) */ 1020 if (*(int *)data < 0 || *(int *)data > MAX_BLANKTIME) { 1021 lwkt_reltoken(&vga_token); 1022 return EINVAL; 1023 } 1024 syscons_lock(); 1025 scrn_blank_time = *(int *)data; 1026 run_scrn_saver = (scrn_blank_time != 0); 1027 syscons_unlock(); 1028 lwkt_reltoken(&vga_token); 1029 return 0; 1030 1031 case CONS_CURSORTYPE: /* set cursor type blink/noblink */ 1032 syscons_lock(); 1033 if (!ISGRAPHSC(sc->cur_scp)) 1034 sc_remove_cursor_image(sc->cur_scp); 1035 if ((*(int*)data) & 0x01) 1036 sc->flags |= SC_BLINK_CURSOR; 1037 else 1038 sc->flags &= ~SC_BLINK_CURSOR; 1039 if ((*(int*)data) & 0x02) { 1040 sc->flags |= SC_CHAR_CURSOR; 1041 } else 1042 sc->flags &= ~SC_CHAR_CURSOR; 1043 /* 1044 * The cursor shape is global property; all virtual consoles 1045 * are affected. Update the cursor in the current console... 1046 */ 1047 if (!ISGRAPHSC(sc->cur_scp)) { 1048 sc_set_cursor_image(sc->cur_scp); 1049 sc_draw_cursor_image(sc->cur_scp); 1050 } 1051 syscons_unlock(); 1052 lwkt_reltoken(&vga_token); 1053 return 0; 1054 1055 case CONS_BELLTYPE: /* set bell type sound/visual */ 1056 syscons_lock(); 1057 1058 if ((*(int *)data) & 0x01) 1059 sc->flags |= SC_VISUAL_BELL; 1060 else 1061 sc->flags &= ~SC_VISUAL_BELL; 1062 1063 if ((*(int *)data) & 0x02) 1064 sc->flags |= SC_QUIET_BELL; 1065 else 1066 sc->flags &= ~SC_QUIET_BELL; 1067 1068 syscons_unlock(); 1069 lwkt_reltoken(&vga_token); 1070 return 0; 1071 1072 case CONS_GETINFO: /* get current (virtual) console info */ 1073 { 1074 vid_info_t *ptr = (vid_info_t*)data; 1075 if (ptr->size == sizeof(struct vid_info)) { 1076 ptr->m_num = sc->cur_scp->index; 1077 ptr->font_size = scp->font_height; 1078 ptr->mv_col = scp->xpos; 1079 ptr->mv_row = scp->ypos; 1080 ptr->mv_csz = scp->xsize; 1081 ptr->mv_rsz = scp->ysize; 1082 /* 1083 * The following fields are filled by the terminal emulator. XXX 1084 * 1085 * ptr->mv_norm.fore 1086 * ptr->mv_norm.back 1087 * ptr->mv_rev.fore 1088 * ptr->mv_rev.back 1089 */ 1090 ptr->mv_grfc.fore = 0; /* not supported */ 1091 ptr->mv_grfc.back = 0; /* not supported */ 1092 ptr->mv_ovscan = scp->border; 1093 if (scp == sc->cur_scp) 1094 save_kbd_state(scp, FALSE); 1095 ptr->mk_keylock = scp->status & LOCK_MASK; 1096 lwkt_reltoken(&vga_token); 1097 return 0; 1098 } 1099 lwkt_reltoken(&vga_token); 1100 return EINVAL; 1101 } 1102 1103 case CONS_GETVERS: /* get version number */ 1104 *(int*)data = 0x200; /* version 2.0 */ 1105 lwkt_reltoken(&vga_token); 1106 return 0; 1107 1108 case CONS_IDLE: /* see if the screen has been idle */ 1109 /* 1110 * When the screen is in the GRAPHICS_MODE or UNKNOWN_MODE, 1111 * the user process may have been writing something on the 1112 * screen and syscons is not aware of it. Declare the screen 1113 * is NOT idle if it is in one of these modes. But there is 1114 * an exception to it; if a screen saver is running in the 1115 * graphics mode in the current screen, we should say that the 1116 * screen has been idle. 1117 */ 1118 *(int *)data = (sc->flags & SC_SCRN_IDLE) 1119 && (!ISGRAPHSC(sc->cur_scp) 1120 || (sc->cur_scp->status & SAVER_RUNNING)); 1121 lwkt_reltoken(&vga_token); 1122 return 0; 1123 1124 case CONS_SAVERMODE: /* set saver mode */ 1125 switch(*(int *)data) { 1126 case CONS_NO_SAVER: 1127 case CONS_USR_SAVER: 1128 syscons_lock(); 1129 /* if a LKM screen saver is running, stop it first. */ 1130 scsplash_stick(FALSE); 1131 saver_mode = *(int *)data; 1132 #if NSPLASH > 0 1133 if ((error = wait_scrn_saver_stop(NULL, TRUE))) { 1134 syscons_unlock(); 1135 lwkt_reltoken(&vga_token); 1136 return error; 1137 } 1138 #endif /* NSPLASH */ 1139 run_scrn_saver = TRUE; 1140 if (saver_mode == CONS_USR_SAVER) 1141 scp->status |= SAVER_RUNNING; 1142 else 1143 scp->status &= ~SAVER_RUNNING; 1144 scsplash_stick(TRUE); 1145 syscons_unlock(); 1146 break; 1147 case CONS_LKM_SAVER: 1148 syscons_lock(); 1149 if ((saver_mode == CONS_USR_SAVER) && (scp->status & SAVER_RUNNING)) 1150 scp->status &= ~SAVER_RUNNING; 1151 saver_mode = *(int *)data; 1152 syscons_unlock(); 1153 break; 1154 default: 1155 lwkt_reltoken(&vga_token); 1156 return EINVAL; 1157 } 1158 lwkt_reltoken(&vga_token); 1159 return 0; 1160 1161 case CONS_SAVERSTART: /* immediately start/stop the screen saver */ 1162 /* 1163 * Note that this ioctl does not guarantee the screen saver 1164 * actually starts or stops. It merely attempts to do so... 1165 */ 1166 syscons_lock(); 1167 run_scrn_saver = (*(int *)data != 0); 1168 if (run_scrn_saver) 1169 sc->scrn_time_stamp -= scrn_blank_time; 1170 syscons_unlock(); 1171 lwkt_reltoken(&vga_token); 1172 return 0; 1173 1174 case CONS_SCRSHOT: /* get a screen shot */ 1175 { 1176 scrshot_t *ptr = (scrshot_t*)data; 1177 syscons_lock(); 1178 if (ISGRAPHSC(scp)) { 1179 syscons_unlock(); 1180 lwkt_reltoken(&vga_token); 1181 return EOPNOTSUPP; 1182 } 1183 if (scp->xsize != ptr->xsize || scp->ysize != ptr->ysize) { 1184 syscons_unlock(); 1185 lwkt_reltoken(&vga_token); 1186 return EINVAL; 1187 } 1188 syscons_unlock(); 1189 copyout ((void*)scp->vtb.vtb_buffer, ptr->buf, 1190 ptr->xsize * ptr->ysize * sizeof(uint16_t)); 1191 lwkt_reltoken(&vga_token); 1192 return 0; 1193 } 1194 1195 case VT_SETMODE: /* set screen switcher mode */ 1196 { 1197 struct vt_mode *mode; 1198 1199 mode = (struct vt_mode *)data; 1200 DPRINTF(5, ("sc%d: VT_SETMODE ", sc->unit)); 1201 if (scp->smode.mode == VT_PROCESS) { 1202 if (scp->proc == pfindn(scp->pid) && scp->proc != curproc) { 1203 DPRINTF(5, ("error EPERM\n")); 1204 lwkt_reltoken(&vga_token); 1205 return EPERM; 1206 } 1207 } 1208 syscons_lock(); 1209 if (mode->mode == VT_AUTO) { 1210 scp->smode.mode = VT_AUTO; 1211 scp->proc = NULL; 1212 scp->pid = 0; 1213 DPRINTF(5, ("VT_AUTO, ")); 1214 if ((scp == sc->cur_scp) && (sc->unit == sc_console_unit) && 1215 !sc->fb_blanked) { 1216 cons_unavail = FALSE; 1217 } 1218 if (finish_vt_rel(scp, TRUE) == 0) 1219 DPRINTF(5, ("reset WAIT_REL, ")); 1220 if (finish_vt_acq(scp) == 0) 1221 DPRINTF(5, ("reset WAIT_ACQ, ")); 1222 } else { 1223 if (!ISSIGVALID(mode->relsig) || !ISSIGVALID(mode->acqsig) 1224 || !ISSIGVALID(mode->frsig)) { 1225 syscons_unlock(); 1226 DPRINTF(5, ("error EINVAL\n")); 1227 lwkt_reltoken(&vga_token); 1228 return EINVAL; 1229 } 1230 DPRINTF(5, ("VT_PROCESS %d, ", curproc->p_pid)); 1231 bcopy(data, &scp->smode, sizeof(struct vt_mode)); 1232 scp->proc = curproc; 1233 scp->pid = scp->proc->p_pid; 1234 if ((scp == sc->cur_scp) && (sc->unit == sc_console_unit)) 1235 cons_unavail = TRUE; 1236 } 1237 syscons_unlock(); 1238 DPRINTF(5, ("\n")); 1239 lwkt_reltoken(&vga_token); 1240 return 0; 1241 } 1242 1243 case VT_GETMODE: /* get screen switcher mode */ 1244 bcopy(&scp->smode, data, sizeof(struct vt_mode)); 1245 lwkt_reltoken(&vga_token); 1246 return 0; 1247 1248 case VT_RELDISP: /* screen switcher ioctl */ 1249 /* 1250 * This must be the current vty which is in the VT_PROCESS 1251 * switching mode... 1252 */ 1253 syscons_lock(); 1254 if ((scp != sc->cur_scp) || (scp->smode.mode != VT_PROCESS)) { 1255 syscons_unlock(); 1256 lwkt_reltoken(&vga_token); 1257 return EINVAL; 1258 } 1259 /* ...and this process is controlling it. */ 1260 if (scp->proc != curproc) { 1261 syscons_unlock(); 1262 lwkt_reltoken(&vga_token); 1263 return EPERM; 1264 } 1265 error = EINVAL; 1266 switch(*(int *)data) { 1267 case VT_FALSE: /* user refuses to release screen, abort */ 1268 if ((error = finish_vt_rel(scp, FALSE)) == 0) 1269 DPRINTF(5, ("sc%d: VT_FALSE\n", sc->unit)); 1270 break; 1271 case VT_TRUE: /* user has released screen, go on */ 1272 if ((error = finish_vt_rel(scp, TRUE)) == 0) 1273 DPRINTF(5, ("sc%d: VT_TRUE\n", sc->unit)); 1274 break; 1275 case VT_ACKACQ: /* acquire acknowledged, switch completed */ 1276 if ((error = finish_vt_acq(scp)) == 0) 1277 DPRINTF(5, ("sc%d: VT_ACKACQ\n", sc->unit)); 1278 syscons_unlock(); 1279 /* Wait for drm modesetting callback to finish. */ 1280 lwkt_reltoken(&vga_token); 1281 if (sc->fb_set_par_task != NULL) 1282 taskqueue_drain(taskqueue_thread[0], sc->fb_set_par_task); 1283 return error; 1284 default: 1285 break; 1286 } 1287 syscons_unlock(); 1288 lwkt_reltoken(&vga_token); 1289 return error; 1290 1291 case VT_OPENQRY: /* return free virtual console */ 1292 for (i = sc->first_vty; i < sc->first_vty + sc->vtys; i++) { 1293 tp = VIRTUAL_TTY(sc, i); 1294 if (!ISTTYOPEN(tp)) { 1295 *(int *)data = i + 1; 1296 lwkt_reltoken(&vga_token); 1297 return 0; 1298 } 1299 } 1300 lwkt_reltoken(&vga_token); 1301 return EINVAL; 1302 1303 case VT_ACTIVATE: /* switch to screen *data */ 1304 i = (*(int *)data == 0) ? scp->index : (*(int *)data - 1); 1305 syscons_lock(); 1306 sc_clean_up(sc->cur_scp, TRUE); 1307 error = sc_switch_scr(sc, i); 1308 syscons_unlock(); 1309 lwkt_reltoken(&vga_token); 1310 return error; 1311 1312 case VT_WAITACTIVE: /* wait for switch to occur */ 1313 i = (*(int *)data == 0) ? scp->index : (*(int *)data - 1); 1314 if ((i < sc->first_vty) || (i >= sc->first_vty + sc->vtys)) { 1315 lwkt_reltoken(&vga_token); 1316 return EINVAL; 1317 } 1318 syscons_lock(); 1319 error = sc_clean_up(sc->cur_scp, TRUE); 1320 syscons_unlock(); 1321 if (error) { 1322 lwkt_reltoken(&vga_token); 1323 return error; 1324 } 1325 1326 /* 1327 * scp might be NULL, we aren't sure why. Check for NULL. 1328 * 1329 * http://bugs.dragonflybsd.org/issues/2481 1330 */ 1331 scp = SC_STAT(SC_DEV(sc, i)); 1332 if (scp == NULL || scp == scp->sc->cur_scp) { 1333 lwkt_reltoken(&vga_token); 1334 return 0; 1335 } 1336 error = tsleep((caddr_t)&scp->smode, PCATCH, "waitvt", 0); 1337 /* May return ERESTART */ 1338 lwkt_reltoken(&vga_token); 1339 /* Wait for drm modesetting callback to finish. */ 1340 if (sc->fb_set_par_task != NULL) 1341 taskqueue_drain(taskqueue_thread[0], sc->fb_set_par_task); 1342 return error; 1343 1344 case VT_GETACTIVE: /* get active vty # */ 1345 *(int *)data = sc->cur_scp->index + 1; 1346 lwkt_reltoken(&vga_token); 1347 return 0; 1348 1349 case VT_GETINDEX: /* get this vty # */ 1350 *(int *)data = scp->index + 1; 1351 lwkt_reltoken(&vga_token); 1352 return 0; 1353 1354 case VT_LOCKSWITCH: /* prevent vty switching */ 1355 syscons_lock(); 1356 if ((*(int *)data) & 0x01) 1357 sc->flags |= SC_SCRN_VTYLOCK; 1358 else 1359 sc->flags &= ~SC_SCRN_VTYLOCK; 1360 syscons_unlock(); 1361 lwkt_reltoken(&vga_token); 1362 return 0; 1363 1364 case KDENABIO: /* allow io operations */ 1365 error = priv_check_cred(ap->a_cred, PRIV_ROOT, 0); 1366 if (error != 0) { 1367 lwkt_reltoken(&vga_token); 1368 return error; 1369 } 1370 if (securelevel > 0) { 1371 lwkt_reltoken(&vga_token); 1372 return EPERM; 1373 } 1374 #if defined(__i386__) 1375 curthread->td_lwp->lwp_md.md_regs->tf_eflags |= PSL_IOPL; 1376 #elif defined(__x86_64__) 1377 curthread->td_lwp->lwp_md.md_regs->tf_rflags |= PSL_IOPL; 1378 #endif 1379 lwkt_reltoken(&vga_token); 1380 return 0; 1381 1382 case KDDISABIO: /* disallow io operations (default) */ 1383 #if defined(__i386__) 1384 curthread->td_lwp->lwp_md.md_regs->tf_eflags &= ~PSL_IOPL; 1385 #elif defined(__x86_64__) 1386 curthread->td_lwp->lwp_md.md_regs->tf_rflags &= ~PSL_IOPL; 1387 #endif 1388 lwkt_reltoken(&vga_token); 1389 return 0; 1390 1391 case KDSKBSTATE: /* set keyboard state (locks) */ 1392 if (*(int *)data & ~LOCK_MASK) { 1393 lwkt_reltoken(&vga_token); 1394 return EINVAL; 1395 } 1396 syscons_lock(); 1397 scp->status &= ~LOCK_MASK; 1398 scp->status |= *(int *)data; 1399 syscons_unlock(); 1400 if (scp == sc->cur_scp) 1401 update_kbd_state(scp, scp->status, LOCK_MASK, FALSE); 1402 lwkt_reltoken(&vga_token); 1403 return 0; 1404 1405 case KDGKBSTATE: /* get keyboard state (locks) */ 1406 if (scp == sc->cur_scp) 1407 save_kbd_state(scp, FALSE); 1408 *(int *)data = scp->status & LOCK_MASK; 1409 lwkt_reltoken(&vga_token); 1410 return 0; 1411 1412 case KDGETREPEAT: /* get keyboard repeat & delay rates */ 1413 case KDSETREPEAT: /* set keyboard repeat & delay rates (new) */ 1414 error = kbd_ioctl(sc->kbd, cmd, data); 1415 if (error == ENOIOCTL) 1416 error = ENODEV; 1417 lwkt_reltoken(&vga_token); 1418 return error; 1419 1420 case KDSKBMODE: /* set keyboard mode */ 1421 switch (*(int *)data) { 1422 case K_XLATE: /* switch to XLT ascii mode */ 1423 case K_RAW: /* switch to RAW scancode mode */ 1424 case K_CODE: /* switch to CODE mode */ 1425 scp->kbd_mode = *(int *)data; 1426 if (scp == sc->cur_scp) 1427 kbd_ioctl(sc->kbd, cmd, data); 1428 lwkt_reltoken(&vga_token); 1429 return 0; 1430 default: 1431 lwkt_reltoken(&vga_token); 1432 return EINVAL; 1433 } 1434 /* NOT REACHED */ 1435 1436 case KDGKBMODE: /* get keyboard mode */ 1437 *(int *)data = scp->kbd_mode; 1438 lwkt_reltoken(&vga_token); 1439 return 0; 1440 1441 case KDGKBINFO: 1442 error = kbd_ioctl(sc->kbd, cmd, data); 1443 if (error == ENOIOCTL) 1444 error = ENODEV; 1445 lwkt_reltoken(&vga_token); 1446 return error; 1447 1448 case KDMKTONE: /* sound the bell */ 1449 syscons_lock(); 1450 if (*(int*)data) 1451 sc_bell(scp, (*(int*)data)&0xffff, 1452 (((*(int*)data)>>16)&0xffff)*hz/1000); 1453 else 1454 sc_bell(scp, scp->bell_pitch, scp->bell_duration); 1455 syscons_unlock(); 1456 lwkt_reltoken(&vga_token); 1457 return 0; 1458 1459 case KIOCSOUND: /* make tone (*data) hz */ 1460 syscons_lock(); 1461 if (scp == sc->cur_scp) { 1462 if (*(int *)data) { 1463 error = sc_tone(*(int *)data); 1464 } else { 1465 error = sc_tone(0); 1466 } 1467 } else { 1468 error = 0; 1469 } 1470 syscons_unlock(); 1471 lwkt_reltoken(&vga_token); 1472 return error; 1473 1474 case KDGKBTYPE: /* get keyboard type */ 1475 error = kbd_ioctl(sc->kbd, cmd, data); 1476 if (error == ENOIOCTL) { 1477 /* always return something? XXX */ 1478 *(int *)data = 0; 1479 } 1480 lwkt_reltoken(&vga_token); 1481 return 0; 1482 1483 case KDSETLED: /* set keyboard LED status */ 1484 if (*(int *)data & ~LED_MASK) { /* FIXME: LOCK_MASK? */ 1485 lwkt_reltoken(&vga_token); 1486 return EINVAL; 1487 } 1488 syscons_lock(); 1489 scp->status &= ~LED_MASK; 1490 scp->status |= *(int *)data; 1491 syscons_unlock(); 1492 if (scp == sc->cur_scp) 1493 update_kbd_leds(scp, scp->status); 1494 lwkt_reltoken(&vga_token); 1495 return 0; 1496 1497 case KDGETLED: /* get keyboard LED status */ 1498 if (scp == sc->cur_scp) 1499 save_kbd_state(scp, FALSE); 1500 *(int *)data = scp->status & LED_MASK; 1501 lwkt_reltoken(&vga_token); 1502 return 0; 1503 1504 case KBADDKBD: /* add/remove keyboard to/from mux */ 1505 case KBRELKBD: 1506 error = kbd_ioctl(sc->kbd, cmd, data); 1507 if (error == ENOIOCTL) 1508 error = ENODEV; 1509 lwkt_reltoken(&vga_token); 1510 return error; 1511 1512 case CONS_SETKBD: /* set the new keyboard */ 1513 { 1514 keyboard_t *newkbd; 1515 1516 newkbd = kbd_get_keyboard(*(int *)data); 1517 if (newkbd == NULL) { 1518 lwkt_reltoken(&vga_token); 1519 return EINVAL; 1520 } 1521 error = 0; 1522 if (sc->kbd != newkbd) { 1523 i = kbd_allocate(newkbd->kb_name, newkbd->kb_unit, 1524 (void *)&sc->keyboard, sckbdevent, sc); 1525 /* i == newkbd->kb_index */ 1526 if (i >= 0) { 1527 if (sc->kbd != NULL) { 1528 save_kbd_state(sc->cur_scp, FALSE); 1529 kbd_release(sc->kbd, (void *)&sc->keyboard); 1530 } 1531 syscons_lock(); 1532 sc->kbd = kbd_get_keyboard(i); /* sc->kbd == newkbd */ 1533 sc->keyboard = i; 1534 syscons_unlock(); 1535 kbd_ioctl(sc->kbd, KDSKBMODE, 1536 (caddr_t)&sc->cur_scp->kbd_mode); 1537 update_kbd_state(sc->cur_scp, sc->cur_scp->status, 1538 LOCK_MASK, FALSE); 1539 } else { 1540 error = EPERM; /* XXX */ 1541 } 1542 } 1543 lwkt_reltoken(&vga_token); 1544 return error; 1545 } 1546 1547 case CONS_RELKBD: /* release the current keyboard */ 1548 error = 0; 1549 if (sc->kbd != NULL) { 1550 save_kbd_state(sc->cur_scp, FALSE); 1551 error = kbd_release(sc->kbd, (void *)&sc->keyboard); 1552 if (error == 0) { 1553 syscons_lock(); 1554 sc->kbd = NULL; 1555 sc->keyboard = -1; 1556 syscons_unlock(); 1557 } 1558 } 1559 lwkt_reltoken(&vga_token); 1560 return error; 1561 1562 case CONS_GETTERM: /* get the current terminal emulator info */ 1563 { 1564 sc_term_sw_t *sw; 1565 1566 if (((term_info_t *)data)->ti_index == 0) { 1567 sw = scp->tsw; 1568 } else { 1569 sw = sc_term_match_by_number(((term_info_t *)data)->ti_index); 1570 } 1571 if (sw != NULL) { 1572 strncpy(((term_info_t *)data)->ti_name, sw->te_name, 1573 sizeof(((term_info_t *)data)->ti_name)); 1574 strncpy(((term_info_t *)data)->ti_desc, sw->te_desc, 1575 sizeof(((term_info_t *)data)->ti_desc)); 1576 ((term_info_t *)data)->ti_flags = 0; 1577 lwkt_reltoken(&vga_token); 1578 return 0; 1579 } else { 1580 ((term_info_t *)data)->ti_name[0] = '\0'; 1581 ((term_info_t *)data)->ti_desc[0] = '\0'; 1582 ((term_info_t *)data)->ti_flags = 0; 1583 lwkt_reltoken(&vga_token); 1584 return EINVAL; 1585 } 1586 } 1587 1588 case CONS_SETTERM: /* set the current terminal emulator */ 1589 syscons_lock(); 1590 error = sc_init_emulator(scp, ((term_info_t *)data)->ti_name); 1591 /* FIXME: what if scp == sc_console! XXX */ 1592 syscons_unlock(); 1593 lwkt_reltoken(&vga_token); 1594 return error; 1595 1596 case GIO_SCRNMAP: /* get output translation table */ 1597 bcopy(&sc->scr_map, data, sizeof(sc->scr_map)); 1598 lwkt_reltoken(&vga_token); 1599 return 0; 1600 1601 case PIO_SCRNMAP: /* set output translation table */ 1602 bcopy(data, &sc->scr_map, sizeof(sc->scr_map)); 1603 for (i=0; i<sizeof(sc->scr_map); i++) { 1604 sc->scr_rmap[sc->scr_map[i]] = i; 1605 } 1606 lwkt_reltoken(&vga_token); 1607 return 0; 1608 1609 case GIO_KEYMAP: /* get keyboard translation table */ 1610 case PIO_KEYMAP: /* set keyboard translation table */ 1611 case GIO_DEADKEYMAP: /* get accent key translation table */ 1612 case PIO_DEADKEYMAP: /* set accent key translation table */ 1613 case GETFKEY: /* get function key string */ 1614 case SETFKEY: /* set function key string */ 1615 error = kbd_ioctl(sc->kbd, cmd, data); 1616 if (error == ENOIOCTL) 1617 error = ENODEV; 1618 lwkt_reltoken(&vga_token); 1619 return error; 1620 1621 #ifndef SC_NO_FONT_LOADING 1622 1623 case PIO_FONT8x8: /* set 8x8 dot font */ 1624 if (sc->fbi == NULL && !ISFONTAVAIL(sc->adp->va_flags)) { 1625 lwkt_reltoken(&vga_token); 1626 return ENXIO; 1627 } 1628 syscons_lock(); 1629 bcopy(data, sc->font_8, 8*256); 1630 sc->fonts_loaded |= FONT_8; 1631 /* 1632 * FONT KLUDGE 1633 * Always use the font page #0. XXX 1634 * Don't load if the current font size is not 8x8. 1635 */ 1636 if (sc->fbi == NULL 1637 && ISTEXTSC(sc->cur_scp) && (sc->cur_scp->font_height < 14)) { 1638 sc_load_font(sc->cur_scp, 0, 8, sc->font_8, 0, 256); 1639 } 1640 syscons_unlock(); 1641 lwkt_reltoken(&vga_token); 1642 return 0; 1643 1644 case GIO_FONT8x8: /* get 8x8 dot font */ 1645 if (sc->fbi == NULL && !ISFONTAVAIL(sc->adp->va_flags)) { 1646 lwkt_reltoken(&vga_token); 1647 return ENXIO; 1648 } 1649 if (sc->fonts_loaded & FONT_8) { 1650 bcopy(sc->font_8, data, 8*256); 1651 lwkt_reltoken(&vga_token); 1652 return 0; 1653 } 1654 else { 1655 lwkt_reltoken(&vga_token); 1656 return ENXIO; 1657 } 1658 1659 case PIO_FONT8x14: /* set 8x14 dot font */ 1660 if (sc->fbi == NULL && !ISFONTAVAIL(sc->adp->va_flags)) { 1661 lwkt_reltoken(&vga_token); 1662 return ENXIO; 1663 } 1664 syscons_lock(); 1665 bcopy(data, sc->font_14, 14*256); 1666 sc->fonts_loaded |= FONT_14; 1667 /* 1668 * FONT KLUDGE 1669 * Always use the font page #0. XXX 1670 * Don't load if the current font size is not 8x14. 1671 */ 1672 if (sc->fbi == NULL 1673 && ISTEXTSC(sc->cur_scp) 1674 && (sc->cur_scp->font_height >= 14) 1675 && (sc->cur_scp->font_height < 16)) { 1676 sc_load_font(sc->cur_scp, 0, 14, sc->font_14, 0, 256); 1677 } 1678 syscons_unlock(); 1679 lwkt_reltoken(&vga_token); 1680 return 0; 1681 1682 case GIO_FONT8x14: /* get 8x14 dot font */ 1683 if (sc->fbi == NULL && !ISFONTAVAIL(sc->adp->va_flags)) { 1684 lwkt_reltoken(&vga_token); 1685 return ENXIO; 1686 } 1687 if (sc->fonts_loaded & FONT_14) { 1688 bcopy(sc->font_14, data, 14*256); 1689 lwkt_reltoken(&vga_token); 1690 return 0; 1691 } 1692 else { 1693 lwkt_reltoken(&vga_token); 1694 return ENXIO; 1695 } 1696 1697 case PIO_FONT8x16: /* set 8x16 dot font */ 1698 if (sc->fbi == NULL && !ISFONTAVAIL(sc->adp->va_flags)) { 1699 lwkt_reltoken(&vga_token); 1700 return ENXIO; 1701 } 1702 syscons_lock(); 1703 bcopy(data, sc->font_16, 16*256); 1704 sc->fonts_loaded |= FONT_16; 1705 /* 1706 * FONT KLUDGE 1707 * Always use the font page #0. XXX 1708 * Don't load if the current font size is not 8x16. 1709 */ 1710 if (sc->fbi == NULL 1711 && ISTEXTSC(sc->cur_scp) && (sc->cur_scp->font_height >= 16)) { 1712 sc_load_font(sc->cur_scp, 0, 16, sc->font_16, 0, 256); 1713 } 1714 syscons_unlock(); 1715 lwkt_reltoken(&vga_token); 1716 return 0; 1717 1718 case GIO_FONT8x16: /* get 8x16 dot font */ 1719 if (sc->fbi == NULL && !ISFONTAVAIL(sc->adp->va_flags)) { 1720 lwkt_reltoken(&vga_token); 1721 return ENXIO; 1722 } 1723 if (sc->fonts_loaded & FONT_16) { 1724 bcopy(sc->font_16, data, 16*256); 1725 lwkt_reltoken(&vga_token); 1726 return 0; 1727 } 1728 else { 1729 lwkt_reltoken(&vga_token); 1730 return ENXIO; 1731 } 1732 1733 #endif /* SC_NO_FONT_LOADING */ 1734 1735 default: 1736 break; 1737 } 1738 1739 lwkt_gettoken(&tp->t_token); 1740 error = (*linesw[tp->t_line].l_ioctl)(tp, cmd, data, flag, ap->a_cred); 1741 if (error != ENOIOCTL) { 1742 lwkt_reltoken(&tp->t_token); 1743 lwkt_reltoken(&vga_token); 1744 1745 return(error); 1746 } 1747 1748 error = ttioctl(tp, cmd, data, flag); 1749 if (error != ENOIOCTL) { 1750 lwkt_reltoken(&tp->t_token); 1751 lwkt_reltoken(&vga_token); 1752 1753 return(error); 1754 } 1755 1756 lwkt_reltoken(&tp->t_token); 1757 lwkt_reltoken(&vga_token); 1758 1759 return(ENOTTY); 1760 } 1761 1762 static void 1763 scstart(struct tty *tp) 1764 { 1765 struct clist *rbp; 1766 int len; 1767 u_char buf[PCBURST]; 1768 scr_stat *scp = SC_STAT(tp->t_dev); 1769 1770 syscons_lock(); 1771 if (scp->status & SLKED || 1772 (scp == scp->sc->cur_scp && scp->sc->blink_in_progress)) 1773 { 1774 syscons_unlock(); 1775 return; 1776 } 1777 if (!(tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP))) { 1778 tp->t_state |= TS_BUSY; 1779 rbp = &tp->t_outq; 1780 while (rbp->c_cc) { 1781 len = clist_qtob(rbp, buf, PCBURST); 1782 sc_puts(scp, buf, len); 1783 } 1784 tp->t_state &= ~TS_BUSY; 1785 syscons_unlock(); 1786 ttwwakeup(tp); 1787 } else { 1788 syscons_unlock(); 1789 } 1790 } 1791 1792 static void 1793 sccnprobe(struct consdev *cp) 1794 { 1795 int unit; 1796 int flags; 1797 1798 cp->cn_pri = sc_get_cons_priority(&unit, &flags); 1799 1800 /* a video card is always required */ 1801 if (probe_efi_fb(1) != 0 && !scvidprobe(unit, flags, TRUE)) 1802 cp->cn_pri = CN_DEAD; 1803 1804 /* syscons will become console even when there is no keyboard */ 1805 sckbdprobe(unit, flags, TRUE); 1806 1807 if (cp->cn_pri == CN_DEAD) { 1808 return; 1809 } 1810 1811 /* initialize required fields */ 1812 cp->cn_probegood = 1; 1813 } 1814 1815 static void 1816 sccninit(struct consdev *cp) 1817 { 1818 int unit; 1819 int flags; 1820 1821 sc_get_cons_priority(&unit, &flags); 1822 scinit(unit, flags | SC_KERNEL_CONSOLE); 1823 sc_console_unit = unit; 1824 sc_console = sc_get_softc(unit, SC_KERNEL_CONSOLE)->console_scp; 1825 } 1826 1827 static void 1828 sccninit_fini(struct consdev *cp) 1829 { 1830 if (cctl_dev == NULL) 1831 kprintf("sccninit_fini: WARNING: cctl_dev is NULL!\n"); 1832 cp->cn_dev = cctl_dev; 1833 } 1834 1835 /* 1836 * This is called when the console is switched away from syscons to 1837 * a late-configuring device (such as a PCIe serial port). Since 1838 * late-configuring devices basically didn't exist until now, this 1839 * routine was never called, and SURPRISE! It doesn't work... causes 1840 * syscons to implode due to all the funny console-not-console structure 1841 * selection syscons does. 1842 * 1843 * Make it a NOP. Just leave the console designation intact, even 1844 * though it is no longer a console. 1845 */ 1846 static void 1847 sccnterm(struct consdev *cp) 1848 { 1849 #if 0 1850 /* we are not the kernel console any more, release everything */ 1851 1852 if (sc_console_unit < 0) 1853 return; /* shouldn't happen */ 1854 1855 #if 0 /* XXX */ 1856 syscons_lock(); 1857 sc_clear_screen(sc_console); 1858 sccnupdate(sc_console); 1859 syscons_unlock(); 1860 #endif 1861 scterm(sc_console_unit, SC_KERNEL_CONSOLE); 1862 sc_console_unit = -1; 1863 sc_console = NULL; 1864 #endif 1865 } 1866 1867 /* 1868 * Console path - cannot block! 1869 */ 1870 static void 1871 sccnputc(void *private, int c) 1872 { 1873 u_char buf[1]; 1874 scr_stat *scp = sc_console; 1875 void *save; 1876 #ifndef SC_NO_HISTORY 1877 #if 0 1878 struct tty *tp; 1879 #endif 1880 #endif /* !SC_NO_HISTORY */ 1881 1882 /* assert(sc_console != NULL) */ 1883 1884 syscons_lock(); 1885 #ifndef SC_NO_HISTORY 1886 if (scp == scp->sc->cur_scp && scp->status & SLKED) { 1887 scp->status &= ~SLKED; 1888 #if 0 1889 /* This can block, illegal in the console path */ 1890 update_kbd_state(scp, scp->status, SLKED, TRUE); 1891 #endif 1892 if (scp->status & BUFFER_SAVED) { 1893 if (!sc_hist_restore(scp)) 1894 sc_remove_cutmarking(scp); 1895 scp->status &= ~BUFFER_SAVED; 1896 scp->status |= CURSOR_ENABLED; 1897 sc_draw_cursor_image(scp); 1898 } 1899 #if 0 1900 tp = VIRTUAL_TTY(scp->sc, scp->index); 1901 /* This can block, illegal in the console path */ 1902 if (ISTTYOPEN(tp)) { 1903 scstart(tp); 1904 } 1905 #endif 1906 } 1907 #endif /* !SC_NO_HISTORY */ 1908 1909 save = scp->ts; 1910 if (kernel_console_ts != NULL) 1911 scp->ts = kernel_console_ts; 1912 buf[0] = c; 1913 sc_puts(scp, buf, 1); 1914 scp->ts = save; 1915 1916 sccnupdate(scp); 1917 syscons_unlock(); 1918 } 1919 1920 /* 1921 * Console path - cannot block! 1922 */ 1923 static int 1924 sccngetc(void *private) 1925 { 1926 return sccngetch(0); 1927 } 1928 1929 /* 1930 * Console path - cannot block! 1931 */ 1932 static int 1933 sccncheckc(void *private) 1934 { 1935 return sccngetch(SCGETC_NONBLOCK); 1936 } 1937 1938 /* 1939 * Set polling mode (also disables the tty feed), use when 1940 * polling for console key input. 1941 */ 1942 static void 1943 sccnpoll(void *private, int on) 1944 { 1945 scr_stat *scp; 1946 1947 syscons_lock(); 1948 sc_touch_scrn_saver(); 1949 scp = sc_console->sc->cur_scp; /* XXX */ 1950 syscons_unlock(); 1951 if (scp->sc->kbd) 1952 kbd_poll(scp->sc->kbd, on); 1953 } 1954 1955 static void 1956 sccndbctl(void *private, int on) 1957 { 1958 /* assert(sc_console_unit >= 0) */ 1959 /* try to switch to the kernel console screen */ 1960 if (on && debugger == 0) { 1961 /* 1962 * TRY to make sure the screen saver is stopped, 1963 * and the screen is updated before switching to 1964 * the vty0. 1965 */ 1966 scrn_timer(NULL); 1967 if (!cold 1968 && sc_console->sc->cur_scp->smode.mode == VT_AUTO 1969 && sc_console->smode.mode == VT_AUTO) { 1970 sc_console->sc->cur_scp->status |= MOUSE_HIDDEN; 1971 syscons_lock(); 1972 sc_switch_scr(sc_console->sc, sc_console->index); 1973 syscons_unlock(); 1974 } 1975 } 1976 if (on) 1977 ++debugger; 1978 else 1979 --debugger; 1980 } 1981 1982 /* 1983 * Console path - cannot block! 1984 */ 1985 static int 1986 sccngetch(int flags) 1987 { 1988 static struct fkeytab fkey; 1989 static int fkeycp; 1990 scr_stat *scp; 1991 u_char *p; 1992 int cur_mode; 1993 int c; 1994 1995 syscons_lock(); 1996 /* assert(sc_console != NULL) */ 1997 1998 /* 1999 * Stop the screen saver and update the screen if necessary. 2000 * What if we have been running in the screen saver code... XXX 2001 */ 2002 sc_touch_scrn_saver(); 2003 scp = sc_console->sc->cur_scp; /* XXX */ 2004 sccnupdate(scp); 2005 syscons_unlock(); 2006 2007 if (fkeycp < fkey.len) { 2008 return fkey.str[fkeycp++]; 2009 } 2010 2011 if (scp->sc->kbd == NULL) { 2012 return -1; 2013 } 2014 2015 /* 2016 * Make sure the keyboard is accessible even when the kbd device 2017 * driver is disabled. 2018 */ 2019 crit_enter(); 2020 kbd_enable(scp->sc->kbd); 2021 2022 /* we shall always use the keyboard in the XLATE mode here */ 2023 cur_mode = scp->kbd_mode; 2024 scp->kbd_mode = K_XLATE; 2025 kbd_ioctl(scp->sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode); 2026 2027 c = scgetc(scp->sc, SCGETC_CN | flags); 2028 2029 scp->kbd_mode = cur_mode; 2030 kbd_ioctl(scp->sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode); 2031 kbd_disable(scp->sc->kbd); 2032 crit_exit(); 2033 2034 switch (KEYFLAGS(c)) { 2035 case 0: /* normal char */ 2036 return KEYCHAR(c); 2037 case FKEY: /* function key */ 2038 p = kbd_get_fkeystr(scp->sc->kbd, KEYCHAR(c), (size_t *)&fkeycp); 2039 fkey.len = fkeycp; 2040 if ((p != NULL) && (fkey.len > 0)) { 2041 bcopy(p, fkey.str, fkey.len); 2042 fkeycp = 1; 2043 return fkey.str[0]; 2044 } 2045 return c; /* XXX */ 2046 case NOKEY: 2047 if (flags & SCGETC_NONBLOCK) 2048 return c; 2049 /* fall through */ 2050 case ERRKEY: 2051 default: 2052 return -1; 2053 } 2054 /* NOT REACHED */ 2055 } 2056 2057 static void 2058 sccnupdate(scr_stat *scp) 2059 { 2060 int ddb_active; 2061 2062 #ifdef DDB 2063 ddb_active = db_active; 2064 #else 2065 ddb_active = 0; 2066 #endif 2067 2068 /* this is a cut-down version of scrn_timer()... */ 2069 2070 /* 2071 * Don't update if videoio is in progress. However, if we are paniced 2072 * or in the debugger it is possible that the variables might be stuck, 2073 * so ignore it in such cases. 2074 */ 2075 if (scp->sc->font_loading_in_progress || scp->sc->videoio_in_progress) { 2076 if (panicstr == NULL && ddb_active == 0 && shutdown_in_progress == 0) 2077 return; 2078 } 2079 2080 if (debugger > 0 || panicstr || ddb_active || shutdown_in_progress) { 2081 sc_touch_scrn_saver(); 2082 } else if (scp != scp->sc->cur_scp) { 2083 return; 2084 } 2085 2086 if (!run_scrn_saver) 2087 scp->sc->flags &= ~SC_SCRN_IDLE; 2088 #if NSPLASH > 0 2089 /* 2090 * This is a hard path, we cannot call stop_scrn_saver() here. 2091 */ 2092 if ((saver_mode != CONS_LKM_SAVER) || !(scp->sc->flags & SC_SCRN_IDLE)) 2093 if (scp->sc->flags & SC_SCRN_BLANKED) { 2094 sc_touch_scrn_saver(); 2095 /*stop_scrn_saver(scp->sc, current_saver);*/ 2096 } 2097 #endif /* NSPLASH */ 2098 2099 if (scp != scp->sc->cur_scp || scp->sc->blink_in_progress 2100 || scp->sc->switch_in_progress) { 2101 return; 2102 } 2103 2104 /* 2105 * FIXME: unlike scrn_timer(), we call scrn_update() from here even 2106 * when write_in_progress is non-zero. XXX 2107 */ 2108 if (!ISGRAPHSC(scp) && !(scp->sc->flags & SC_SCRN_BLANKED)) 2109 scrn_update(scp, TRUE, SCRN_ASYNCOK); 2110 } 2111 2112 static void 2113 scrn_timer(void *arg) 2114 { 2115 static int kbd_interval = 0; 2116 struct timeval tv; 2117 sc_softc_t *sc; 2118 scr_stat *scp; 2119 int again; 2120 2121 /* 2122 * Setup depending on who called us 2123 */ 2124 again = (arg != NULL); 2125 if (arg != NULL) { 2126 sc = (sc_softc_t *)arg; 2127 } else if (sc_console != NULL) { 2128 sc = sc_console->sc; 2129 } else { 2130 return; 2131 } 2132 2133 /* 2134 * Don't do anything when we are performing some I/O operations. 2135 * (These are initiated by the frontend?) 2136 */ 2137 if (sc->font_loading_in_progress || sc->videoio_in_progress) { 2138 if (again) 2139 callout_reset(&sc->scrn_timer_ch, hz / 10, scrn_timer, sc); 2140 return; 2141 } 2142 2143 /* 2144 * Try to allocate a keyboard automatically 2145 */ 2146 if ((sc->kbd == NULL) && (sc->config & SC_AUTODETECT_KBD)) { 2147 if (++kbd_interval >= 25) { 2148 sc->keyboard = sc_allocate_keyboard(sc, -1); 2149 if (sc->keyboard >= 0) { 2150 sc->kbd = kbd_get_keyboard(sc->keyboard); 2151 kbd_ioctl(sc->kbd, KDSKBMODE, 2152 (caddr_t)&sc->cur_scp->kbd_mode); 2153 update_kbd_state(sc->cur_scp, sc->cur_scp->status, 2154 LOCK_MASK, FALSE); 2155 } 2156 kbd_interval = 0; 2157 } 2158 } 2159 2160 /* 2161 * Should we stop the screen saver? We need the syscons_lock 2162 * for most of this stuff. 2163 */ 2164 getmicrouptime(&tv); 2165 2166 if (syscons_lock_nonblock() != 0) { 2167 /* failed to get the lock */ 2168 if (again) 2169 callout_reset(&sc->scrn_timer_ch, hz / 10, scrn_timer, sc); 2170 return; 2171 } 2172 /* successful lock */ 2173 2174 if (debugger > 0 || panicstr || shutdown_in_progress) 2175 sc_touch_scrn_saver(); 2176 if (run_scrn_saver) { 2177 if (tv.tv_sec > sc->scrn_time_stamp + scrn_blank_time) 2178 sc->flags |= SC_SCRN_IDLE; 2179 else 2180 sc->flags &= ~SC_SCRN_IDLE; 2181 } else { 2182 sc->scrn_time_stamp = tv.tv_sec; 2183 sc->flags &= ~SC_SCRN_IDLE; 2184 if (scrn_blank_time > 0) 2185 run_scrn_saver = TRUE; 2186 } 2187 #if NSPLASH > 0 2188 if ((saver_mode != CONS_LKM_SAVER) || !(sc->flags & SC_SCRN_IDLE)) { 2189 if ((sc->flags & SC_SCRN_BLANKED) && !ISGRAPHSC(sc->cur_scp)) 2190 stop_scrn_saver(sc, current_saver); 2191 } 2192 #endif /* NSPLASH */ 2193 2194 /* should we just return ? */ 2195 if (sc->blink_in_progress || sc->switch_in_progress || 2196 sc->write_in_progress) 2197 { 2198 syscons_unlock(); 2199 if (again) 2200 callout_reset(&sc->scrn_timer_ch, hz / 10, scrn_timer, sc); 2201 return; 2202 } 2203 2204 /* Update the screen */ 2205 scp = sc->cur_scp; /* cur_scp may have changed... */ 2206 if (!ISGRAPHSC(scp) && !(sc->flags & SC_SCRN_BLANKED)) 2207 scrn_update(scp, TRUE, SCRN_ASYNCOK); 2208 2209 #if NSPLASH > 0 2210 /* should we activate the screen saver? */ 2211 if ((saver_mode == CONS_LKM_SAVER) && (sc->flags & SC_SCRN_IDLE)) 2212 if (!ISGRAPHSC(scp) || (sc->flags & SC_SCRN_BLANKED)) 2213 (*current_saver)(sc, TRUE); 2214 #endif /* NSPLASH */ 2215 2216 syscons_unlock(); 2217 if (again) 2218 callout_reset(&sc->scrn_timer_ch, hz / 25, scrn_timer, sc); 2219 } 2220 2221 static int 2222 and_region(int *s1, int *e1, int s2, int e2) 2223 { 2224 if (*e1 < s2 || e2 < *s1) 2225 return FALSE; 2226 *s1 = imax(*s1, s2); 2227 *e1 = imin(*e1, e2); 2228 return TRUE; 2229 } 2230 2231 /* 2232 * Refresh modified frame buffer range. Also used to 2233 * scroll (entire FB is marked modified). 2234 * 2235 * This function is allowed to run without the syscons_lock, 2236 * so scp fields can change unexpected. We cache most values 2237 * that we care about and silently discard illegal ranges. 2238 */ 2239 static void 2240 scrn_update(scr_stat *scp, int show_cursor, int flags) 2241 { 2242 int start; 2243 int end; 2244 int cpos; 2245 int copos; 2246 int s; 2247 int e; 2248 int ddb_active; 2249 2250 #ifdef DDB 2251 ddb_active = db_active; 2252 #else 2253 ddb_active = 0; 2254 #endif 2255 2256 /* 2257 * Try to run large screen updates as an async operation, which will 2258 * call this function again from a thread with BULKUNLOCK set, allowing 2259 * interrupts during the update which tends to make the system behave 2260 * better (no sound glitches, etc). 2261 */ 2262 if ((flags & SCRN_ASYNCOK) && syscons_async && scp->asynctd && 2263 (scp->end - scp->start) > 16 && 2264 panicstr == NULL && ddb_active == 0 && shutdown_in_progress == 0) { 2265 scp->show_cursor = show_cursor; 2266 scp->queue_update_td = 1; 2267 wakeup(&scp->asynctd); 2268 return; 2269 } 2270 if (flags & SCRN_BULKUNLOCK) 2271 syscons_lock(); 2272 2273 /* 2274 * Synchronous operation or called from 2275 */ 2276 2277 /* assert(scp == scp->sc->cur_scp) */ 2278 atomic_add_int(&scp->sc->videoio_in_progress, 1); 2279 2280 cpos = scp->cursor_pos; 2281 copos = scp->cursor_oldpos; 2282 2283 #ifndef SC_NO_CUTPASTE 2284 /* remove the previous mouse pointer image if necessary */ 2285 if (scp->status & MOUSE_VISIBLE) { 2286 s = scp->mouse_pos; 2287 e = scp->mouse_pos + scp->xsize + 1; 2288 if ((scp->status & (MOUSE_MOVED | MOUSE_HIDDEN)) 2289 || and_region(&s, &e, scp->start, scp->end) 2290 || ((scp->status & CURSOR_ENABLED) && 2291 (cpos != copos) && 2292 (and_region(&s, &e, cpos, cpos) 2293 || and_region(&s, &e, copos, copos)))) { 2294 sc_remove_mouse_image(scp); 2295 if (scp->end >= scp->xsize*scp->ysize) 2296 scp->end = scp->xsize*scp->ysize - 1; 2297 } 2298 } 2299 #endif /* !SC_NO_CUTPASTE */ 2300 2301 /* 2302 * WARNING: Don't add debugging kprintf()s with syscons locked. 2303 * Or at all. 2304 */ 2305 if (scp->end >= scp->xsize*scp->ysize) { 2306 scp->end = scp->xsize*scp->ysize - 1; 2307 } 2308 if (scp->start < 0) { 2309 scp->start = 0; 2310 } 2311 2312 /* 2313 * Main update, extract update range and reset 2314 * ASAP. 2315 */ 2316 start = scp->start; 2317 end = scp->end; 2318 scp->end = 0; 2319 scp->start = scp->xsize * scp->ysize - 1; 2320 2321 if (start <= end) { 2322 if (flags & SCRN_BULKUNLOCK) { 2323 atomic_add_int(&scp->sc->videoio_in_progress, -1); 2324 syscons_unlock(); 2325 } 2326 (*scp->rndr->draw)(scp, start, end - start + 1, FALSE); 2327 if (flags & SCRN_BULKUNLOCK) { 2328 syscons_lock(); 2329 atomic_add_int(&scp->sc->videoio_in_progress, 1); 2330 } 2331 2332 /* 2333 * Handle cut sequence 2334 */ 2335 s = scp->mouse_cut_start; 2336 e = scp->mouse_cut_end; 2337 cpu_ccfence(); /* allowed to race */ 2338 2339 if (e >= 0) { 2340 if (s > e) { 2341 int r = s; 2342 s = e; 2343 e = r; 2344 } 2345 /* does the cut-mark region overlap with the update region? */ 2346 if (and_region(&s, &e, start, end)) { 2347 if (flags & SCRN_BULKUNLOCK) { 2348 atomic_add_int(&scp->sc->videoio_in_progress, -1); 2349 syscons_unlock(); 2350 } 2351 (*scp->rndr->draw)(scp, s, e - s + 1, TRUE); 2352 if (flags & SCRN_BULKUNLOCK) { 2353 syscons_lock(); 2354 atomic_add_int(&scp->sc->videoio_in_progress, 1); 2355 } 2356 } 2357 } 2358 } 2359 2360 /* we are not to show the cursor and the mouse pointer... */ 2361 if (!show_cursor) 2362 goto cleanup; 2363 2364 /* update cursor image */ 2365 if (scp->status & CURSOR_ENABLED) { 2366 s = start; 2367 e = end; 2368 /* did cursor move since last time ? */ 2369 if (cpos != copos) { 2370 /* do we need to remove old cursor image ? */ 2371 if (!and_region(&s, &e, copos, copos)) 2372 sc_remove_cursor_image(scp); 2373 sc_draw_cursor_image(scp); 2374 } else { 2375 if (s <= e && and_region(&s, &e, cpos, cpos)) { 2376 /* cursor didn't move, but has been overwritten */ 2377 sc_draw_cursor_image(scp); 2378 } else if (scp->sc->flags & SC_BLINK_CURSOR) { 2379 /* if it's a blinking cursor, update it */ 2380 (*scp->rndr->blink_cursor)(scp, cpos, 2381 sc_inside_cutmark(scp, cpos)); 2382 } 2383 } 2384 } 2385 2386 #ifndef SC_NO_CUTPASTE 2387 /* update "pseudo" mouse pointer image */ 2388 if (scp->sc->flags & SC_MOUSE_ENABLED) { 2389 if (!(scp->status & (MOUSE_VISIBLE | MOUSE_HIDDEN))) { 2390 scp->status &= ~MOUSE_MOVED; 2391 sc_draw_mouse_image(scp); 2392 } 2393 } 2394 #endif /* SC_NO_CUTPASTE */ 2395 2396 /* 2397 * Cleanup 2398 */ 2399 cleanup: 2400 atomic_add_int(&scp->sc->videoio_in_progress, -1); 2401 if (flags & SCRN_BULKUNLOCK) 2402 syscons_unlock(); 2403 } 2404 2405 /* 2406 * Thread handles potentially expensive screen updates. The function is 2407 * expected to operate safely without locks. 2408 */ 2409 static void 2410 scrn_update_thread(void *arg) 2411 { 2412 scr_stat *scp = arg; 2413 for (;;) { 2414 if (scp->queue_update_td == 0) { 2415 tsleep_interlock(&scp->asynctd, 0); 2416 if (scp->queue_update_td == 0) 2417 tsleep(&scp->asynctd, PINTERLOCKED, "wait", 0); 2418 } 2419 scp->queue_update_td = 0; 2420 lockmgr(&sc_asynctd_lk, LK_EXCLUSIVE); 2421 atomic_add_int(&scp->sc->videoio_in_progress, 1); 2422 scrn_update(scp, scp->show_cursor, SCRN_BULKUNLOCK); 2423 atomic_add_int(&scp->sc->videoio_in_progress, -1); 2424 lockmgr(&sc_asynctd_lk, LK_RELEASE); 2425 } 2426 } 2427 2428 static void 2429 sc_fb_set_par(void *context, int pending) 2430 { 2431 sc_softc_t *sc = context; 2432 2433 lwkt_gettoken(&vga_token); 2434 if (sc->fbi != NULL && sc->fbi->fbops.fb_set_par != NULL) 2435 sc->fbi->fbops.fb_set_par(sc->fbi); 2436 lwkt_reltoken(&vga_token); 2437 } 2438 2439 #if NSPLASH > 0 2440 static void 2441 sc_fb_blank(void *context, int pending) 2442 { 2443 sc_softc_t *sc = context; 2444 2445 lwkt_gettoken(&vga_token); 2446 if (sc->fbi != NULL && sc->fbi->fbops.fb_blank != NULL) { 2447 /* 0 == FB_BLANK_UNBLANK and 4 == FB_BLANK_POWERDOWN */ 2448 if (sc->flags & SC_SCRN_BLANKED) { 2449 sc->fbi->fbops.fb_blank(4, sc->fbi); 2450 sc->fb_blanked = TRUE; 2451 if (sc->unit == sc_console_unit) 2452 cons_unavail = TRUE; 2453 } else { 2454 sc->fbi->fbops.fb_blank(0, sc->fbi); 2455 sc->fb_blanked = FALSE; 2456 if (sc->unit == sc_console_unit && 2457 sc->cur_scp->smode.mode == VT_AUTO) 2458 cons_unavail = FALSE; 2459 } 2460 } 2461 lwkt_reltoken(&vga_token); 2462 } 2463 2464 static void 2465 scframebuffer_saver(sc_softc_t *sc, int show) 2466 { 2467 scr_stat *scp = sc->cur_scp; 2468 2469 if (panicstr) 2470 return; 2471 2472 /* 2473 * Gets called on every screen update while screensaver is active, 2474 * so we need to check the SC_SCRN_BLANKED flag ourselves. 2475 */ 2476 if ((sc->flags & SC_SCRN_BLANKED) && show) 2477 return; 2478 2479 taskqueue_cancel(taskqueue_thread[0], sc->fb_blank_task, NULL); 2480 crit_enter(); 2481 if (show) { 2482 scp->status |= SAVER_RUNNING; 2483 sc->flags |= SC_SCRN_BLANKED; 2484 ++scrn_blanked; 2485 } else { 2486 scp->status &= ~SAVER_RUNNING; 2487 sc->flags &= ~SC_SCRN_BLANKED; 2488 --scrn_blanked; 2489 } 2490 crit_exit(); 2491 taskqueue_enqueue(taskqueue_thread[0], sc->fb_blank_task); 2492 } 2493 2494 static int 2495 scsplash_callback(int event, void *arg) 2496 { 2497 sc_softc_t *sc; 2498 int error; 2499 2500 sc = (sc_softc_t *)arg; 2501 2502 switch (event) { 2503 case SPLASH_INIT: 2504 if (add_scrn_saver(scsplash_saver) == 0) { 2505 sc->flags &= ~SC_SAVER_FAILED; 2506 run_scrn_saver = TRUE; 2507 if (cold) { 2508 scsplash_stick(TRUE); 2509 (*current_saver)(sc, TRUE); 2510 } 2511 } 2512 return 0; 2513 2514 case SPLASH_TERM: 2515 if (current_saver == scsplash_saver) { 2516 scsplash_stick(FALSE); 2517 error = remove_scrn_saver(scsplash_saver); 2518 if (error) { 2519 return error; 2520 } 2521 } 2522 return 0; 2523 2524 default: 2525 return EINVAL; 2526 } 2527 } 2528 2529 static void 2530 scsplash_saver(sc_softc_t *sc, int show) 2531 { 2532 static int busy = FALSE; 2533 scr_stat *scp; 2534 2535 if (busy) 2536 return; 2537 busy = TRUE; 2538 2539 scp = sc->cur_scp; 2540 if (show) { 2541 if (!(sc->flags & SC_SAVER_FAILED)) { 2542 if (!(sc->flags & SC_SCRN_BLANKED)) 2543 set_scrn_saver_mode(scp, -1, NULL, 0); 2544 switch (splash(sc->adp, TRUE)) { 2545 case 0: /* succeeded */ 2546 break; 2547 case EAGAIN: /* try later */ 2548 restore_scrn_saver_mode(scp, FALSE); 2549 sc_touch_scrn_saver(); /* XXX */ 2550 break; 2551 default: 2552 sc->flags |= SC_SAVER_FAILED; 2553 scsplash_stick(FALSE); 2554 restore_scrn_saver_mode(scp, TRUE); 2555 kprintf("scsplash_saver(): failed to put up the image\n"); 2556 break; 2557 } 2558 } 2559 } else if (!sticky_splash) { 2560 if ((sc->flags & SC_SCRN_BLANKED) && (splash(sc->adp, FALSE) == 0)) 2561 restore_scrn_saver_mode(scp, TRUE); 2562 } 2563 busy = FALSE; 2564 } 2565 2566 static int 2567 add_scrn_saver(void (*this_saver)(sc_softc_t *, int)) 2568 { 2569 #if 0 2570 int error; 2571 2572 if (current_saver != none_saver) { 2573 error = remove_scrn_saver(current_saver); 2574 if (error) 2575 return error; 2576 } 2577 #endif 2578 if (current_saver != none_saver) { 2579 return EBUSY; 2580 } 2581 2582 run_scrn_saver = FALSE; 2583 saver_mode = CONS_LKM_SAVER; 2584 current_saver = this_saver; 2585 return 0; 2586 } 2587 2588 static int 2589 remove_scrn_saver(void (*this_saver)(sc_softc_t *, int)) 2590 { 2591 if (current_saver != this_saver) 2592 return EINVAL; 2593 2594 #if 0 2595 /* 2596 * In order to prevent `current_saver' from being called by 2597 * the timeout routine `scrn_timer()' while we manipulate 2598 * the saver list, we shall set `current_saver' to `none_saver' 2599 * before stopping the current saver, rather than blocking by `splXX()'. 2600 */ 2601 current_saver = none_saver; 2602 if (scrn_blanked) 2603 stop_scrn_saver(this_saver); 2604 #endif 2605 /* unblank all blanked screens */ 2606 wait_scrn_saver_stop(NULL, FALSE); 2607 if (scrn_blanked) { 2608 return EBUSY; 2609 } 2610 2611 current_saver = none_saver; 2612 return 0; 2613 } 2614 2615 static int 2616 set_scrn_saver_mode(scr_stat *scp, int mode, u_char *pal, int border) 2617 { 2618 2619 /* assert(scp == scp->sc->cur_scp) */ 2620 crit_enter(); 2621 if (!ISGRAPHSC(scp)) 2622 sc_remove_cursor_image(scp); 2623 scp->splash_save_mode = scp->mode; 2624 scp->splash_save_status = scp->status & (GRAPHICS_MODE | PIXEL_MODE); 2625 scp->status &= ~(GRAPHICS_MODE | PIXEL_MODE); 2626 scp->status |= (UNKNOWN_MODE | SAVER_RUNNING); 2627 scp->sc->flags |= SC_SCRN_BLANKED; 2628 ++scrn_blanked; 2629 crit_exit(); 2630 if (mode < 0) { 2631 return 0; 2632 } 2633 scp->mode = mode; 2634 if (set_mode(scp) == 0) { 2635 if (scp->sc->fbi == NULL && 2636 scp->sc->adp->va_info.vi_flags & V_INFO_GRAPHICS) { 2637 scp->status |= GRAPHICS_MODE; 2638 } 2639 if (scp->sc->fbi == NULL && pal != NULL) 2640 load_palette(scp->sc->adp, pal); 2641 sc_set_border(scp, border); 2642 return 0; 2643 } else { 2644 crit_enter(); 2645 scp->mode = scp->splash_save_mode; 2646 scp->status &= ~(UNKNOWN_MODE | SAVER_RUNNING); 2647 scp->status |= scp->splash_save_status; 2648 crit_exit(); 2649 return 1; 2650 } 2651 /* NOTREACHED */ 2652 } 2653 2654 static int 2655 restore_scrn_saver_mode(scr_stat *scp, int changemode) 2656 { 2657 int mode; 2658 int status; 2659 2660 /* assert(scp == scp->sc->cur_scp) */ 2661 crit_enter(); 2662 mode = scp->mode; 2663 status = scp->status; 2664 scp->mode = scp->splash_save_mode; 2665 scp->status &= ~(UNKNOWN_MODE | SAVER_RUNNING); 2666 scp->status |= scp->splash_save_status; 2667 scp->sc->flags &= ~SC_SCRN_BLANKED; 2668 if (!changemode) { 2669 if (!ISGRAPHSC(scp)) 2670 sc_draw_cursor_image(scp); 2671 --scrn_blanked; 2672 crit_exit(); 2673 return 0; 2674 } 2675 if (set_mode(scp) == 0) { 2676 if (scp->sc->fbi == NULL) 2677 load_palette(scp->sc->adp, scp->sc->palette); 2678 --scrn_blanked; 2679 crit_exit(); 2680 return 0; 2681 } else { 2682 scp->mode = mode; 2683 scp->status = status; 2684 crit_exit(); 2685 return 1; 2686 } 2687 /* NOTREACHED */ 2688 } 2689 2690 static void 2691 stop_scrn_saver(sc_softc_t *sc, void (*saver)(sc_softc_t *, int)) 2692 { 2693 (*saver)(sc, FALSE); 2694 run_scrn_saver = FALSE; 2695 /* the screen saver may have chosen not to stop after all... */ 2696 if (sc->flags & SC_SCRN_BLANKED) { 2697 return; 2698 } 2699 2700 mark_all(sc->cur_scp); 2701 if (sc->delayed_next_scr) 2702 sc_switch_scr(sc, sc->delayed_next_scr - 1); 2703 wakeup(&scrn_blanked); 2704 } 2705 2706 static int 2707 wait_scrn_saver_stop(sc_softc_t *sc, int need_unlock) 2708 { 2709 int error = 0; 2710 2711 while (scrn_blanked > 0) { 2712 run_scrn_saver = FALSE; 2713 if (sc && !(sc->flags & SC_SCRN_BLANKED)) { 2714 error = 0; 2715 break; 2716 } 2717 if (need_unlock) { 2718 tsleep_interlock(&scrn_blanked, PCATCH); 2719 syscons_unlock(); 2720 error = tsleep(&scrn_blanked, PCATCH | PINTERLOCKED, "scrsav", 0); 2721 syscons_lock(); 2722 } else { 2723 error = tsleep(&scrn_blanked, PCATCH, "scrsav", 0); 2724 } 2725 /* May return ERESTART */ 2726 if (error) 2727 break; 2728 } 2729 run_scrn_saver = FALSE; 2730 return error; 2731 } 2732 #endif /* NSPLASH */ 2733 2734 void 2735 sc_start_scrn_saver(sc_softc_t *sc) 2736 { 2737 #if NSPLASH > 0 2738 (*current_saver)(sc, TRUE); 2739 #endif 2740 } 2741 2742 void 2743 sc_stop_scrn_saver(sc_softc_t *sc) 2744 { 2745 #if NSPLASH > 0 2746 if (sc->flags & SC_SCRN_BLANKED) 2747 stop_scrn_saver(sc, current_saver); 2748 #endif 2749 } 2750 2751 void 2752 sc_touch_scrn_saver(void) 2753 { 2754 scsplash_stick(FALSE); 2755 run_scrn_saver = FALSE; 2756 } 2757 2758 int 2759 sc_switch_scr(sc_softc_t *sc, u_int next_scr) 2760 { 2761 scr_stat *cur_scp; 2762 struct tty *tp; 2763 2764 DPRINTF(5, ("sc0: sc_switch_scr() %d ", next_scr + 1)); 2765 2766 /* prevent switch if previously requested */ 2767 if (sc->flags & SC_SCRN_VTYLOCK) { 2768 sc_bell(sc->cur_scp, sc->cur_scp->bell_pitch, 2769 sc->cur_scp->bell_duration); 2770 return EPERM; 2771 } 2772 2773 /* delay switch if the screen is blanked or being updated */ 2774 if ((sc->flags & SC_SCRN_BLANKED) || sc->write_in_progress 2775 || sc->blink_in_progress || sc->videoio_in_progress) { 2776 sc->delayed_next_scr = next_scr + 1; 2777 sc_touch_scrn_saver(); 2778 DPRINTF(5, ("switch delayed\n")); 2779 return 0; 2780 } 2781 2782 cur_scp = sc->cur_scp; 2783 2784 /* 2785 * we are in the middle of the vty switching process... 2786 * 2787 * This may be in the console path, be very careful. pfindn() is 2788 * still going to use a spinlock but it no longer uses tokens so 2789 * we should be ok. 2790 */ 2791 if (sc->switch_in_progress && 2792 (cur_scp->smode.mode == VT_PROCESS) && 2793 cur_scp->proc) { 2794 if (cur_scp->proc != pfindn(cur_scp->pid)) { 2795 /* 2796 * The controlling process has died!!. Do some clean up. 2797 * NOTE:`cur_scp->proc' and `cur_scp->smode.mode' 2798 * are not reset here yet; they will be cleared later. 2799 */ 2800 DPRINTF(5, ("cur_scp controlling process %d died, ", cur_scp->pid)); 2801 if (cur_scp->status & SWITCH_WAIT_REL) { 2802 /* 2803 * Force the previous switch to finish, but return now 2804 * with error. 2805 * 2806 */ 2807 DPRINTF(5, ("reset WAIT_REL, ")); 2808 finish_vt_rel(cur_scp, TRUE); 2809 DPRINTF(5, ("finishing previous switch\n")); 2810 return EINVAL; 2811 } else if (cur_scp->status & SWITCH_WAIT_ACQ) { 2812 /* let's assume screen switch has been completed. */ 2813 DPRINTF(5, ("reset WAIT_ACQ, ")); 2814 finish_vt_acq(cur_scp); 2815 } else { 2816 /* 2817 * We are in between screen release and acquisition, and 2818 * reached here via scgetc() or scrn_timer() which has 2819 * interrupted exchange_scr(). Don't do anything stupid. 2820 */ 2821 DPRINTF(5, ("waiting nothing, ")); 2822 } 2823 } else { 2824 /* 2825 * The controlling process is alive, but not responding... 2826 * It is either buggy or it may be just taking time. 2827 * The following code is a gross kludge to cope with this 2828 * problem for which there is no clean solution. XXX 2829 */ 2830 if (cur_scp->status & SWITCH_WAIT_REL) { 2831 switch (sc->switch_in_progress++) { 2832 case 1: 2833 break; 2834 case 2: 2835 DPRINTF(5, ("sending relsig again, ")); 2836 signal_vt_rel(cur_scp); 2837 break; 2838 case 3: 2839 break; 2840 case 4: 2841 default: 2842 /* 2843 * Act as if the controlling program returned 2844 * VT_FALSE. 2845 * 2846 */ 2847 DPRINTF(5, ("force reset WAIT_REL, ")); 2848 finish_vt_rel(cur_scp, FALSE); 2849 DPRINTF(5, ("act as if VT_FALSE was seen\n")); 2850 return EINVAL; 2851 } 2852 } else if (cur_scp->status & SWITCH_WAIT_ACQ) { 2853 switch (sc->switch_in_progress++) { 2854 case 1: 2855 break; 2856 case 2: 2857 DPRINTF(5, ("sending acqsig again, ")); 2858 signal_vt_acq(cur_scp); 2859 break; 2860 case 3: 2861 break; 2862 case 4: 2863 default: 2864 /* clear the flag and finish the previous switch */ 2865 DPRINTF(5, ("force reset WAIT_ACQ, ")); 2866 finish_vt_acq(cur_scp); 2867 break; 2868 } 2869 } 2870 } 2871 } 2872 2873 /* 2874 * Return error if an invalid argument is given, or vty switch 2875 * is still in progress. 2876 */ 2877 if ((next_scr < sc->first_vty) || (next_scr >= sc->first_vty + sc->vtys) 2878 || sc->switch_in_progress) { 2879 sc_bell(cur_scp, bios_value.bell_pitch, BELL_DURATION); 2880 DPRINTF(5, ("error 1\n")); 2881 return EINVAL; 2882 } 2883 2884 /* 2885 * Don't allow switching away from the graphics mode vty 2886 * if the switch mode is VT_AUTO, unless the next vty is the same 2887 * as the current or the current vty has been closed (but showing). 2888 */ 2889 tp = VIRTUAL_TTY(sc, cur_scp->index); 2890 if ((cur_scp->index != next_scr) 2891 && ISTTYOPEN(tp) 2892 && (cur_scp->smode.mode == VT_AUTO) 2893 && ISGRAPHSC(cur_scp)) { 2894 sc_bell(cur_scp, bios_value.bell_pitch, BELL_DURATION); 2895 DPRINTF(5, ("error, graphics mode\n")); 2896 return EINVAL; 2897 } 2898 2899 /* 2900 * Is the wanted vty open? Don't allow switching to a closed vty. 2901 * If we are in DDB, don't switch to a vty in the VT_PROCESS mode. 2902 * Note that we always allow the user to switch to the kernel 2903 * console even if it is closed. 2904 */ 2905 if ((sc_console == NULL) || (next_scr != sc_console->index)) { 2906 tp = VIRTUAL_TTY(sc, next_scr); 2907 if (!ISTTYOPEN(tp)) { 2908 sc_bell(cur_scp, bios_value.bell_pitch, BELL_DURATION); 2909 DPRINTF(5, ("error 2, requested vty isn't open!\n")); 2910 return EINVAL; 2911 } 2912 if ((debugger > 0) && (SC_STAT(tp->t_dev)->smode.mode == VT_PROCESS)) { 2913 DPRINTF(5, ("error 3, requested vty is in the VT_PROCESS mode\n")); 2914 return EINVAL; 2915 } 2916 } 2917 2918 /* this is the start of vty switching process... */ 2919 ++sc->switch_in_progress; 2920 sc->delayed_next_scr = 0; 2921 sc->old_scp = cur_scp; 2922 sc->new_scp = SC_STAT(SC_DEV(sc, next_scr)); 2923 if (sc->new_scp == sc->old_scp) { 2924 sc->switch_in_progress = 0; 2925 wakeup((caddr_t)&sc->new_scp->smode); 2926 DPRINTF(5, ("switch done (new == old)\n")); 2927 return 0; 2928 } 2929 2930 /* has controlling process died? */ 2931 vt_proc_alive(sc->old_scp); 2932 vt_proc_alive(sc->new_scp); 2933 2934 /* wait for the controlling process to release the screen, if necessary */ 2935 if (signal_vt_rel(sc->old_scp)) { 2936 return 0; 2937 } 2938 2939 /* go set up the new vty screen */ 2940 exchange_scr(sc); 2941 2942 /* wake up processes waiting for this vty */ 2943 wakeup((caddr_t)&sc->cur_scp->smode); 2944 2945 /* wait for the controlling process to acknowledge, if necessary */ 2946 if (signal_vt_acq(sc->cur_scp)) { 2947 return 0; 2948 } 2949 2950 sc->switch_in_progress = 0; 2951 if (sc->unit == sc_console_unit && !sc->fb_blanked) 2952 cons_unavail = FALSE; 2953 DPRINTF(5, ("switch done\n")); 2954 2955 return 0; 2956 } 2957 2958 static void 2959 do_switch_scr(sc_softc_t *sc) 2960 { 2961 lwkt_gettoken(&vga_token); 2962 vt_proc_alive(sc->new_scp); 2963 2964 exchange_scr(sc); 2965 /* sc->cur_scp == sc->new_scp */ 2966 wakeup((caddr_t)&sc->cur_scp->smode); 2967 2968 /* wait for the controlling process to acknowledge, if necessary */ 2969 if (!signal_vt_acq(sc->cur_scp)) { 2970 sc->switch_in_progress = 0; 2971 if (sc->unit == sc_console_unit && !sc->fb_blanked) 2972 cons_unavail = FALSE; 2973 } 2974 lwkt_reltoken(&vga_token); 2975 } 2976 2977 static int 2978 vt_proc_alive(scr_stat *scp) 2979 { 2980 lwkt_gettoken(&vga_token); 2981 if (scp->proc) { 2982 if (scp->proc == pfindn(scp->pid)) { 2983 lwkt_reltoken(&vga_token); 2984 return TRUE; 2985 } 2986 scp->proc = NULL; 2987 scp->smode.mode = VT_AUTO; 2988 DPRINTF(5, ("vt controlling process %d died\n", scp->pid)); 2989 } 2990 lwkt_reltoken(&vga_token); 2991 return FALSE; 2992 } 2993 2994 static int 2995 signal_vt_rel(scr_stat *scp) 2996 { 2997 struct proc *p; 2998 2999 lwkt_gettoken(&vga_token); 3000 if (scp->smode.mode != VT_PROCESS) { 3001 lwkt_reltoken(&vga_token); 3002 return FALSE; 3003 } 3004 scp->status |= SWITCH_WAIT_REL; 3005 p = scp->proc; 3006 PHOLD(p); 3007 ksignal(p, scp->smode.relsig); 3008 PRELE(p); 3009 DPRINTF(5, ("sending relsig to %d\n", scp->pid)); 3010 lwkt_reltoken(&vga_token); 3011 3012 return TRUE; 3013 } 3014 3015 static int 3016 signal_vt_acq(scr_stat *scp) 3017 { 3018 struct proc *p; 3019 3020 lwkt_gettoken(&vga_token); 3021 if (scp->smode.mode != VT_PROCESS) { 3022 lwkt_reltoken(&vga_token); 3023 return FALSE; 3024 } 3025 if (scp->sc->unit == sc_console_unit) 3026 cons_unavail = TRUE; 3027 scp->status |= SWITCH_WAIT_ACQ; 3028 p = scp->proc; 3029 PHOLD(p); 3030 ksignal(p, scp->smode.acqsig); 3031 PRELE(p); 3032 DPRINTF(5, ("sending acqsig to %d\n", scp->pid)); 3033 lwkt_reltoken(&vga_token); 3034 3035 return TRUE; 3036 } 3037 3038 static int 3039 finish_vt_rel(scr_stat *scp, int release) 3040 { 3041 lwkt_gettoken(&vga_token); 3042 if (scp == scp->sc->old_scp && scp->status & SWITCH_WAIT_REL) { 3043 scp->status &= ~SWITCH_WAIT_REL; 3044 if (release) 3045 do_switch_scr(scp->sc); 3046 else 3047 scp->sc->switch_in_progress = 0; 3048 lwkt_reltoken(&vga_token); 3049 return 0; 3050 } 3051 lwkt_reltoken(&vga_token); 3052 return EINVAL; 3053 } 3054 3055 static int 3056 finish_vt_acq(scr_stat *scp) 3057 { 3058 lwkt_gettoken(&vga_token); 3059 if (scp == scp->sc->new_scp && scp->status & SWITCH_WAIT_ACQ) { 3060 scp->status &= ~SWITCH_WAIT_ACQ; 3061 scp->sc->switch_in_progress = 0; 3062 lwkt_reltoken(&vga_token); 3063 return 0; 3064 } 3065 lwkt_reltoken(&vga_token); 3066 return EINVAL; 3067 } 3068 3069 static void 3070 exchange_scr(sc_softc_t *sc) 3071 { 3072 scr_stat *scp; 3073 3074 lwkt_gettoken(&vga_token); 3075 /* save the current state of video and keyboard */ 3076 sc_move_cursor(sc->old_scp, sc->old_scp->xpos, sc->old_scp->ypos); 3077 if (!ISGRAPHSC(sc->old_scp)) 3078 sc_remove_cursor_image(sc->old_scp); 3079 if (sc->old_scp->kbd_mode == K_XLATE) 3080 save_kbd_state(sc->old_scp, TRUE); 3081 3082 /* set up the video for the new screen */ 3083 scp = sc->cur_scp = sc->new_scp; 3084 if (sc->old_scp->mode != scp->mode || ISUNKNOWNSC(sc->old_scp)) 3085 set_mode(scp); 3086 else if (sc->adp != NULL) 3087 sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, scp->xsize, scp->ysize, 3088 (void *)sc->adp->va_window, FALSE); 3089 scp->status |= MOUSE_HIDDEN; 3090 sc_update_render(scp); /* Switch to kms renderer if necessary */ 3091 sc_move_cursor(scp, scp->xpos, scp->ypos); 3092 if (!ISGRAPHSC(scp)) 3093 sc_set_cursor_image(scp); 3094 if (sc->fbi == NULL && ISGRAPHSC(sc->old_scp)) 3095 load_palette(sc->adp, sc->palette); 3096 if (!ISGRAPHSC(scp) || sc->fbi == NULL) 3097 sc_set_border(scp, scp->border); 3098 3099 /* set up the keyboard for the new screen */ 3100 if (sc->old_scp->kbd_mode != scp->kbd_mode) 3101 kbd_ioctl(sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode); 3102 update_kbd_state(scp, scp->status, LOCK_MASK, TRUE); 3103 3104 mark_all(scp); 3105 3106 /* 3107 * Restore DRM framebuffer console mode if necessary. 3108 * Especially avoid modesetting when switching to a vt which is in 3109 * graphics mode, because the fb_set_par() from the taskqueue thread 3110 * might race with the modesetting ioctl from the userland application. 3111 */ 3112 if (!ISTEXTSC(sc->old_scp) && 3113 sc->fbi != NULL && sc->fbi->fbops.fb_set_par != NULL && 3114 sc->fb_set_par_task != NULL) { 3115 taskqueue_enqueue(taskqueue_thread[0], sc->fb_set_par_task); 3116 } 3117 3118 lwkt_reltoken(&vga_token); 3119 } 3120 3121 static void 3122 sc_puts(scr_stat *scp, u_char *buf, int len) 3123 { 3124 #if NSPLASH > 0 3125 /* make screensaver happy */ 3126 if (!sticky_splash && scp == scp->sc->cur_scp) 3127 run_scrn_saver = FALSE; 3128 #endif 3129 3130 if (scp->tsw) 3131 (*scp->tsw->te_puts)(scp, buf, len); 3132 3133 if (scp->sc->delayed_next_scr) 3134 sc_switch_scr(scp->sc, scp->sc->delayed_next_scr - 1); 3135 3136 } 3137 3138 void 3139 sc_draw_cursor_image(scr_stat *scp) 3140 { 3141 /* assert(scp == scp->sc->cur_scp); */ 3142 atomic_add_int(&scp->sc->videoio_in_progress, 1); 3143 (*scp->rndr->draw_cursor)(scp, scp->cursor_pos, 3144 scp->sc->flags & SC_BLINK_CURSOR, TRUE, 3145 sc_inside_cutmark(scp, scp->cursor_pos)); 3146 scp->cursor_oldpos = scp->cursor_pos; 3147 atomic_add_int(&scp->sc->videoio_in_progress, -1); 3148 } 3149 3150 void 3151 sc_remove_cursor_image(scr_stat *scp) 3152 { 3153 /* assert(scp == scp->sc->cur_scp); */ 3154 atomic_add_int(&scp->sc->videoio_in_progress, 1); 3155 (*scp->rndr->draw_cursor)(scp, scp->cursor_oldpos, 3156 scp->sc->flags & SC_BLINK_CURSOR, FALSE, 3157 sc_inside_cutmark(scp, scp->cursor_oldpos)); 3158 atomic_add_int(&scp->sc->videoio_in_progress, -1); 3159 } 3160 3161 static void 3162 update_cursor_image(scr_stat *scp) 3163 { 3164 int blink; 3165 3166 if (scp->sc->flags & SC_CHAR_CURSOR) { 3167 scp->cursor_base = imax(0, scp->sc->cursor_base); 3168 scp->cursor_height = imin(scp->sc->cursor_height, scp->font_height); 3169 } else { 3170 scp->cursor_base = 0; 3171 scp->cursor_height = scp->font_height; 3172 } 3173 blink = scp->sc->flags & SC_BLINK_CURSOR; 3174 3175 /* assert(scp == scp->sc->cur_scp); */ 3176 atomic_add_int(&scp->sc->videoio_in_progress, 1); 3177 (*scp->rndr->draw_cursor)(scp, scp->cursor_oldpos, blink, FALSE, 3178 sc_inside_cutmark(scp, scp->cursor_pos)); 3179 (*scp->rndr->set_cursor)(scp, scp->cursor_base, scp->cursor_height, blink); 3180 (*scp->rndr->draw_cursor)(scp, scp->cursor_pos, blink, TRUE, 3181 sc_inside_cutmark(scp, scp->cursor_pos)); 3182 atomic_add_int(&scp->sc->videoio_in_progress, -1); 3183 } 3184 3185 void 3186 sc_set_cursor_image(scr_stat *scp) 3187 { 3188 if (scp->sc->flags & SC_CHAR_CURSOR) { 3189 scp->cursor_base = imax(0, scp->sc->cursor_base); 3190 scp->cursor_height = imin(scp->sc->cursor_height, scp->font_height); 3191 } else { 3192 scp->cursor_base = 0; 3193 scp->cursor_height = scp->font_height; 3194 } 3195 3196 /* assert(scp == scp->sc->cur_scp); */ 3197 atomic_add_int(&scp->sc->videoio_in_progress, 1); 3198 (*scp->rndr->set_cursor)(scp, scp->cursor_base, scp->cursor_height, 3199 scp->sc->flags & SC_BLINK_CURSOR); 3200 atomic_add_int(&scp->sc->videoio_in_progress, -1); 3201 } 3202 3203 static void 3204 scinit(int unit, int flags) 3205 { 3206 /* 3207 * When syscons is being initialized as the kernel console, malloc() 3208 * is not yet functional, because various kernel structures has not been 3209 * fully initialized yet. Therefore, we need to declare the following 3210 * static buffers for the console. This is less than ideal, 3211 * but is necessry evil for the time being. XXX 3212 */ 3213 static scr_stat main_console; 3214 static u_short sc_buffer[ROW*COL]; /* XXX */ 3215 #ifndef SC_NO_FONT_LOADING 3216 static u_char font_8[256*8]; 3217 static u_char font_14[256*14]; 3218 static u_char font_16[256*16]; 3219 #endif 3220 3221 sc_softc_t *sc; 3222 scr_stat *scp; 3223 video_adapter_t *adp; 3224 char tbuf[MAKEDEV_MINNBUF]; 3225 int col; 3226 int row; 3227 int i; 3228 3229 /* one time initialization */ 3230 if (init_done == COLD) 3231 sc_get_bios_values(&bios_value); 3232 init_done = WARM; 3233 3234 /* 3235 * Allocate resources. Even if we are being called for the second 3236 * time, we must allocate them again, because they might have 3237 * disappeared... 3238 */ 3239 sc = sc_get_softc(unit, flags & SC_KERNEL_CONSOLE); 3240 adp = NULL; 3241 if (flags & SC_EFI_FB) { 3242 /* Don't replace already registered drm framebuffer here */ 3243 if (sc->fbi == NULL) { 3244 sc->fbi = &efi_fb_info; 3245 sc->fbi_generation++; 3246 } 3247 } else if (sc->adapter >= 0) { 3248 vid_release(sc->adp, (void *)&sc->adapter); 3249 adp = sc->adp; 3250 } 3251 sc->adp = NULL; 3252 if (sc->keyboard >= 0) { 3253 DPRINTF(5, ("sc%d: releasing kbd%d\n", unit, sc->keyboard)); 3254 i = kbd_release(sc->kbd, (void *)&sc->keyboard); 3255 DPRINTF(5, ("sc%d: kbd_release returned %d\n", unit, i)); 3256 if (sc->kbd != NULL) { 3257 DPRINTF(5, ("sc%d: kbd != NULL!, index:%d, unit:%d, flags:0x%x\n", 3258 unit, sc->kbd->kb_index, sc->kbd->kb_unit, sc->kbd->kb_flags)); 3259 } 3260 sc->kbd = NULL; 3261 } 3262 if (!(flags & SC_EFI_FB)) { 3263 sc->adapter = vid_allocate("*", unit, (void *)&sc->adapter); 3264 sc->adp = vid_get_adapter(sc->adapter); 3265 /* assert((sc->adapter >= 0) && (sc->adp != NULL)) */ 3266 } 3267 sc->keyboard = sc_allocate_keyboard(sc, unit); 3268 DPRINTF(1, ("sc%d: keyboard %d\n", unit, sc->keyboard)); 3269 sc->kbd = kbd_get_keyboard(sc->keyboard); 3270 if (sc->kbd != NULL) { 3271 DPRINTF(1, ("sc%d: kbd index:%d, unit:%d, flags:0x%x\n", 3272 unit, sc->kbd->kb_index, sc->kbd->kb_unit, sc->kbd->kb_flags)); 3273 } 3274 3275 if (!(sc->flags & SC_INIT_DONE) || (adp != sc->adp)) { 3276 3277 if (sc->fbi != NULL) 3278 sc->initial_mode = 0; 3279 else 3280 sc->initial_mode = sc->adp->va_initial_mode; 3281 3282 #ifndef SC_NO_FONT_LOADING 3283 if (flags & SC_KERNEL_CONSOLE) { 3284 sc->font_8 = font_8; 3285 sc->font_14 = font_14; 3286 sc->font_16 = font_16; 3287 } else if (sc->font_8 == NULL) { 3288 /* assert(sc_malloc) */ 3289 sc->font_8 = kmalloc(sizeof(font_8), M_SYSCONS, M_WAITOK); 3290 sc->font_14 = kmalloc(sizeof(font_14), M_SYSCONS, M_WAITOK); 3291 sc->font_16 = kmalloc(sizeof(font_16), M_SYSCONS, M_WAITOK); 3292 } 3293 #endif 3294 3295 if (sc->fbi != NULL) { 3296 col = 0; 3297 row = 0; 3298 } else { 3299 lwkt_gettoken(&vga_token); 3300 /* extract the hw cursor location and hide the cursor for now */ 3301 (*vidsw[sc->adapter]->read_hw_cursor)(sc->adp, &col, &row); 3302 (*vidsw[sc->adapter]->set_hw_cursor)(sc->adp, -1, -1); 3303 lwkt_reltoken(&vga_token); 3304 } 3305 3306 /* set up the first console */ 3307 sc->first_vty = unit*MAXCONS; 3308 sc->vtys = MAXCONS; /* XXX: should be configurable */ 3309 if (flags & SC_KERNEL_CONSOLE) { 3310 scp = &main_console; 3311 sc->console_scp = scp; 3312 init_scp(sc, sc->first_vty, scp); 3313 sc_vtb_init(&scp->vtb, VTB_MEMORY, scp->xsize, scp->ysize, 3314 (void *)sc_buffer, FALSE); 3315 if (sc_init_emulator(scp, SC_DFLT_TERM)) 3316 sc_init_emulator(scp, "*"); 3317 (*scp->tsw->te_default_attr)(scp, 3318 kernel_default.std_color, 3319 kernel_default.rev_color); 3320 } else { 3321 /* assert(sc_malloc) */ 3322 sc->dev = kmalloc(sizeof(cdev_t)*sc->vtys, M_SYSCONS, M_WAITOK | M_ZERO); 3323 3324 sc->dev[0] = make_dev(&sc_ops, unit*MAXCONS, UID_ROOT, 3325 GID_WHEEL, 0600, "ttyv%s", 3326 makedev_unit_b32(tbuf, unit * MAXCONS)); 3327 3328 ttymalloc(&sc->dev[0]->si_tty); 3329 scp = alloc_scp(sc, sc->first_vty); 3330 sc->dev[0]->si_drv1 = scp; 3331 } 3332 sc->cur_scp = scp; 3333 3334 /* copy screen to temporary buffer */ 3335 if (scp->sc->fbi == NULL) { 3336 sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, scp->xsize, scp->ysize, 3337 (void *)scp->sc->adp->va_window, FALSE); 3338 if (ISTEXTSC(scp)) 3339 sc_vtb_copy(&scp->scr, 0, &scp->vtb, 0, scp->xsize*scp->ysize); 3340 } 3341 3342 /* move cursors to the initial positions */ 3343 if (col >= scp->xsize) 3344 col = 0; 3345 if (row >= scp->ysize) 3346 row = scp->ysize - 1; 3347 scp->xpos = col; 3348 scp->ypos = row; 3349 if (sc->fbi != NULL) { 3350 scp->cursor_pos = 0; 3351 sc->cursor_base = 0; 3352 sc->cursor_height = scp->font_height; 3353 } else { 3354 scp->cursor_pos = scp->cursor_oldpos = row*scp->xsize + col; 3355 if (bios_value.cursor_end < scp->font_height) 3356 sc->cursor_base = scp->font_height - bios_value.cursor_end - 1; 3357 else 3358 sc->cursor_base = 0; 3359 i = bios_value.cursor_end - bios_value.cursor_start + 1; 3360 sc->cursor_height = imin(i, scp->font_height); 3361 } 3362 #ifndef SC_NO_SYSMOUSE 3363 sc_mouse_move(scp, scp->xpixel/2, scp->ypixel/2); 3364 #endif 3365 if (!ISGRAPHSC(scp)) { 3366 sc_set_cursor_image(scp); 3367 sc_draw_cursor_image(scp); 3368 /* If framebuffer vaddr is still 0, we can't draw the border yet */ 3369 if (scp->sc->fbi != NULL && scp->sc->fbi->vaddr != 0) { 3370 sc_filled_border = TRUE; 3371 sc_set_border(scp, scp->border); 3372 } 3373 } 3374 3375 /* save font and palette */ 3376 #ifndef SC_NO_FONT_LOADING 3377 sc->fonts_loaded = 0; 3378 #ifdef SC_DFLT_FONT 3379 bcopy(dflt_font_8, sc->font_8, sizeof(dflt_font_8)); 3380 bcopy(dflt_font_14, sc->font_14, sizeof(dflt_font_14)); 3381 bcopy(dflt_font_16, sc->font_16, sizeof(dflt_font_16)); 3382 sc->fonts_loaded = FONT_16 | FONT_14 | FONT_8; 3383 #endif /* SC_DFLT_FONT */ 3384 if (sc->adp != NULL && ISFONTAVAIL(sc->adp->va_flags)) { 3385 #ifdef SC_DFLT_FONT 3386 if (scp->font_height < 14) { 3387 sc_load_font(scp, 0, 8, sc->font_8, 0, 256); 3388 } else if (scp->font_height >= 16) { 3389 sc_load_font(scp, 0, 16, sc->font_16, 0, 256); 3390 } else { 3391 sc_load_font(scp, 0, 14, sc->font_14, 0, 256); 3392 } 3393 #else /* !SC_DFLT_FONT */ 3394 if (scp->font_height < 14) { 3395 sc_save_font(scp, 0, 8, sc->font_8, 0, 256); 3396 sc->fonts_loaded = FONT_8; 3397 } else if (scp->font_height >= 16) { 3398 sc_save_font(scp, 0, 16, sc->font_16, 0, 256); 3399 sc->fonts_loaded = FONT_16; 3400 } else { 3401 sc_save_font(scp, 0, 14, sc->font_14, 0, 256); 3402 sc->fonts_loaded = FONT_14; 3403 } 3404 #endif /* SC_DFLT_FONT */ 3405 /* FONT KLUDGE: always use the font page #0. XXX */ 3406 sc_show_font(scp, 0); 3407 } 3408 #endif /* !SC_NO_FONT_LOADING */ 3409 3410 if (!(flags & SC_EFI_FB)) 3411 save_palette(sc->adp, sc->palette); 3412 3413 #if NSPLASH > 0 3414 if (!(sc->flags & SC_SPLASH_SCRN) && (flags & SC_KERNEL_CONSOLE)) { 3415 /* we are ready to put up the splash image! */ 3416 splash_init(sc->adp, scsplash_callback, sc); 3417 sc->flags |= SC_SPLASH_SCRN; 3418 } 3419 #endif /* NSPLASH */ 3420 } 3421 3422 /* the rest is not necessary, if we have done it once */ 3423 if (sc->flags & SC_INIT_DONE) { 3424 return; 3425 } 3426 3427 /* initialize mapscrn arrays to a one to one map */ 3428 for (i = 0; i < sizeof(sc->scr_map); i++) 3429 sc->scr_map[i] = sc->scr_rmap[i] = i; 3430 3431 sc->flags |= SC_INIT_DONE; 3432 } 3433 3434 #if 0 3435 static void 3436 scterm(int unit, int flags) 3437 { 3438 sc_softc_t *sc; 3439 scr_stat *scp; 3440 3441 sc = sc_get_softc(unit, flags & SC_KERNEL_CONSOLE); 3442 if (sc == NULL) 3443 return; /* shouldn't happen */ 3444 3445 lwkt_gettoken(&vga_token); 3446 #if NSPLASH > 0 3447 /* this console is no longer available for the splash screen */ 3448 if (sc->flags & SC_SPLASH_SCRN) { 3449 splash_term(sc->adp); 3450 sc->flags &= ~SC_SPLASH_SCRN; 3451 } 3452 #endif /* NSPLASH */ 3453 3454 #if 0 /* XXX */ 3455 /* move the hardware cursor to the upper-left corner */ 3456 (*vidsw[sc->adapter]->set_hw_cursor)(sc->adp, 0, 0); 3457 #endif 3458 3459 /* release the keyboard and the video card */ 3460 if (sc->keyboard >= 0) 3461 kbd_release(sc->kbd, &sc->keyboard); 3462 if (sc->adapter >= 0) 3463 vid_release(sc->adp, &sc->adapter); 3464 3465 /* 3466 * Stop the terminal emulator, if any. If operating on the 3467 * kernel console sc->dev may not be setup yet. 3468 */ 3469 if (flags & SC_KERNEL_CONSOLE) 3470 scp = sc->console_scp; 3471 else 3472 scp = SC_STAT(sc->dev[0]); 3473 if (scp->tsw) 3474 (*scp->tsw->te_term)(scp, &scp->ts); 3475 if (scp->ts != NULL) 3476 kfree(scp->ts, M_SYSCONS); 3477 3478 /* clear the structure */ 3479 if (!(flags & SC_KERNEL_CONSOLE)) { 3480 /* XXX: We need delete_dev() for this */ 3481 kfree(sc->dev, M_SYSCONS); 3482 #if 0 3483 /* XXX: We need a ttyunregister for this */ 3484 /* XXX: do not race tty token access */ 3485 kfree(sc->tty, M_SYSCONS); 3486 #endif 3487 #ifndef SC_NO_FONT_LOADING 3488 kfree(sc->font_8, M_SYSCONS); 3489 kfree(sc->font_14, M_SYSCONS); 3490 kfree(sc->font_16, M_SYSCONS); 3491 #endif 3492 /* XXX vtb, history */ 3493 } 3494 bzero(sc, sizeof(*sc)); 3495 sc->keyboard = -1; 3496 sc->adapter = -1; 3497 lwkt_reltoken(&vga_token); 3498 } 3499 #endif 3500 3501 static void 3502 scshutdown(void *arg, int howto) 3503 { 3504 /* assert(sc_console != NULL) */ 3505 3506 lwkt_gettoken(&vga_token); 3507 syscons_lock(); 3508 sc_touch_scrn_saver(); 3509 if (!cold && sc_console 3510 && sc_console->sc->cur_scp->smode.mode == VT_AUTO 3511 && sc_console->smode.mode == VT_AUTO) { 3512 sc_switch_scr(sc_console->sc, sc_console->index); 3513 } 3514 shutdown_in_progress = TRUE; 3515 syscons_unlock(); 3516 lwkt_reltoken(&vga_token); 3517 } 3518 3519 int 3520 sc_clean_up(scr_stat *scp, int need_unlock) 3521 { 3522 #if NSPLASH > 0 3523 int error; 3524 #endif /* NSPLASH */ 3525 3526 lwkt_gettoken(&vga_token); 3527 if (scp->sc->flags & SC_SCRN_BLANKED) { 3528 sc_touch_scrn_saver(); 3529 #if NSPLASH > 0 3530 if ((error = wait_scrn_saver_stop(scp->sc, need_unlock))) { 3531 lwkt_reltoken(&vga_token); 3532 return error; 3533 } 3534 #endif /* NSPLASH */ 3535 } 3536 scp->status |= MOUSE_HIDDEN; 3537 sc_remove_mouse_image(scp); 3538 sc_remove_cutmarking(scp); 3539 lwkt_reltoken(&vga_token); 3540 return 0; 3541 } 3542 3543 void 3544 sc_alloc_scr_buffer(scr_stat *scp, int wait, int discard) 3545 { 3546 sc_vtb_t new; 3547 sc_vtb_t old; 3548 3549 lwkt_gettoken(&vga_token); 3550 old = scp->vtb; 3551 sc_vtb_init(&new, VTB_MEMORY, scp->xsize, scp->ysize, NULL, wait); 3552 if (!discard && (old.vtb_flags & VTB_VALID)) { 3553 /* retain the current cursor position and buffer contants */ 3554 scp->cursor_oldpos = scp->cursor_pos; 3555 /* 3556 * This works only if the old buffer has the same size as or larger 3557 * than the new one. XXX 3558 */ 3559 sc_vtb_copy(&old, 0, &new, 0, scp->xsize*scp->ysize); 3560 scp->vtb = new; 3561 } else { 3562 scp->vtb = new; 3563 sc_vtb_destroy(&old); 3564 } 3565 3566 #ifndef SC_NO_SYSMOUSE 3567 /* move the mouse cursor at the center of the screen */ 3568 sc_mouse_move(scp, scp->xpixel / 2, scp->ypixel / 2); 3569 #endif 3570 lwkt_reltoken(&vga_token); 3571 } 3572 3573 static scr_stat * 3574 alloc_scp(sc_softc_t *sc, int vty) 3575 { 3576 scr_stat *scp; 3577 3578 /* assert(sc_malloc) */ 3579 3580 scp = kmalloc(sizeof(scr_stat), M_SYSCONS, M_WAITOK); 3581 init_scp(sc, vty, scp); 3582 3583 sc_alloc_scr_buffer(scp, TRUE, TRUE); 3584 if (sc_init_emulator(scp, SC_DFLT_TERM)) 3585 sc_init_emulator(scp, "*"); 3586 3587 #ifndef SC_NO_CUTPASTE 3588 sc_alloc_cut_buffer(scp, TRUE); 3589 #endif 3590 3591 #ifndef SC_NO_HISTORY 3592 sc_alloc_history_buffer(scp, 0, 0, TRUE); 3593 #endif 3594 return scp; 3595 } 3596 3597 /* 3598 * NOTE: Must be called with vga_token held. 3599 */ 3600 static void 3601 init_scp(sc_softc_t *sc, int vty, scr_stat *scp) 3602 { 3603 video_info_t info; 3604 3605 bzero(scp, sizeof(*scp)); 3606 3607 scp->index = vty; 3608 scp->sc = sc; 3609 scp->status = 0; 3610 scp->mode = sc->initial_mode; 3611 scp->fbi_generation = sc->fbi_generation; 3612 callout_init_lk(&scp->blink_screen_ch, &syscons_blink_lk); 3613 if (scp->sc->fbi == NULL) { 3614 lwkt_gettoken(&vga_token); 3615 (*vidsw[sc->adapter]->get_info)(sc->adp, scp->mode, &info); 3616 lwkt_reltoken(&vga_token); 3617 } 3618 if (scp->sc->fbi != NULL) { 3619 scp->xpixel = sc->fbi->width; 3620 scp->ypixel = sc->fbi->height; 3621 scp->font_width = 8; 3622 scp->font_height = 16; 3623 3624 /* The first vty uses a statically allocated 80x25 buffer */ 3625 if (vty == sc->first_vty) 3626 sc_font_scale(scp, COL, ROW); 3627 else 3628 sc_font_scale(scp, 0, 0); 3629 3630 #ifndef SC_NO_FONT_LOADING 3631 scp->font = sc->font_16; 3632 #else 3633 scp->font = NULL; 3634 #endif 3635 } else if (info.vi_flags & V_INFO_GRAPHICS) { 3636 scp->status |= GRAPHICS_MODE; 3637 scp->xpixel = info.vi_width; 3638 scp->ypixel = info.vi_height; 3639 scp->xsize = info.vi_width/8; 3640 scp->ysize = info.vi_height/info.vi_cheight; 3641 scp->font_height = 0; 3642 scp->font_width = 0; 3643 scp->font = NULL; 3644 } else { 3645 scp->xsize = info.vi_width; 3646 scp->ysize = info.vi_height; 3647 scp->xpixel = scp->xsize*8; 3648 scp->ypixel = scp->ysize*info.vi_cheight; 3649 scp->font_width = 8; 3650 if (info.vi_cheight < 14) { 3651 scp->font_height = 8; 3652 #ifndef SC_NO_FONT_LOADING 3653 scp->font = sc->font_8; 3654 #else 3655 scp->font = NULL; 3656 #endif 3657 } else if (info.vi_cheight >= 16) { 3658 scp->font_height = 16; 3659 #ifndef SC_NO_FONT_LOADING 3660 scp->font = sc->font_16; 3661 #else 3662 scp->font = NULL; 3663 #endif 3664 } else { 3665 scp->font_height = 14; 3666 #ifndef SC_NO_FONT_LOADING 3667 scp->font = sc->font_14; 3668 #else 3669 scp->font = NULL; 3670 #endif 3671 } 3672 } 3673 scp->xoff = scp->yoff = 0; 3674 scp->xpos = scp->ypos = 0; 3675 sc_vtb_init(&scp->vtb, VTB_MEMORY, 0, 0, NULL, FALSE); 3676 sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, 0, 0, NULL, FALSE); 3677 scp->start = scp->xsize * scp->ysize - 1; 3678 scp->end = 0; 3679 scp->tsw = NULL; 3680 scp->ts = NULL; 3681 scp->rndr = NULL; 3682 scp->border = SC_BORDER_COLOR; 3683 scp->cursor_base = sc->cursor_base; 3684 scp->cursor_height = imin(sc->cursor_height, scp->font_height); 3685 scp->mouse_cut_start = scp->xsize * scp->ysize; 3686 scp->mouse_cut_end = -1; 3687 scp->mouse_signal = 0; 3688 scp->mouse_pid = 0; 3689 scp->mouse_proc = NULL; 3690 scp->kbd_mode = K_XLATE; 3691 scp->bell_pitch = bios_value.bell_pitch; 3692 scp->bell_duration = BELL_DURATION; 3693 scp->status |= (bios_value.shift_state & NLKED); 3694 scp->status |= CURSOR_ENABLED | MOUSE_HIDDEN; 3695 scp->pid = 0; 3696 scp->proc = NULL; 3697 scp->smode.mode = VT_AUTO; 3698 scp->history = NULL; 3699 scp->history_pos = 0; 3700 scp->history_size = 0; 3701 } 3702 3703 int 3704 sc_init_emulator(scr_stat *scp, char *name) 3705 { 3706 sc_term_sw_t *sw; 3707 sc_rndr_sw_t *rndr; 3708 void *p; 3709 int error; 3710 3711 if (name == NULL) /* if no name is given, use the current emulator */ 3712 sw = scp->tsw; 3713 else /* ...otherwise find the named emulator */ 3714 sw = sc_term_match(name); 3715 if (sw == NULL) { 3716 return EINVAL; 3717 } 3718 3719 rndr = NULL; 3720 if (strcmp(sw->te_renderer, "*") != 0) { 3721 rndr = sc_render_match(scp, sw->te_renderer, scp->model); 3722 } 3723 if (rndr == NULL && scp->sc->fbi != NULL) { 3724 rndr = sc_render_match(scp, "kms", scp->model); 3725 } 3726 if (rndr == NULL) { 3727 rndr = sc_render_match(scp, scp->sc->adp->va_name, scp->model); 3728 if (rndr == NULL) { 3729 return ENODEV; 3730 } 3731 } 3732 3733 if (sw == scp->tsw) { 3734 error = (*sw->te_init)(scp, &scp->ts, SC_TE_WARM_INIT); 3735 scp->rndr = rndr; 3736 sc_clear_screen(scp); 3737 /* assert(error == 0); */ 3738 return error; 3739 } 3740 3741 if (sc_malloc && (sw->te_size > 0)) 3742 p = kmalloc(sw->te_size, M_SYSCONS, M_NOWAIT); 3743 else 3744 p = NULL; 3745 error = (*sw->te_init)(scp, &p, SC_TE_COLD_INIT); 3746 if (error) { 3747 return error; 3748 } 3749 3750 if (scp->tsw) 3751 (*scp->tsw->te_term)(scp, &scp->ts); 3752 if (scp->ts != NULL) 3753 kfree(scp->ts, M_SYSCONS); 3754 scp->tsw = sw; 3755 scp->ts = p; 3756 scp->rndr = rndr; 3757 3758 /* XXX */ 3759 (*sw->te_default_attr)(scp, user_default.std_color, user_default.rev_color); 3760 sc_clear_screen(scp); 3761 3762 return 0; 3763 } 3764 3765 /* 3766 * scgetc(flags) - get character from keyboard. 3767 * If flags & SCGETC_CN, then avoid harmful side effects. 3768 * If flags & SCGETC_NONBLOCK, then wait until a key is pressed, else 3769 * return NOKEY if there is nothing there. 3770 */ 3771 static u_int 3772 scgetc(sc_softc_t *sc, u_int flags) 3773 { 3774 scr_stat *scp; 3775 #ifndef SC_NO_HISTORY 3776 struct tty *tp; 3777 #endif 3778 u_int c; 3779 int this_scr; 3780 int f; 3781 int i; 3782 3783 lwkt_gettoken(&vga_token); 3784 if (sc->kbd == NULL) { 3785 lwkt_reltoken(&vga_token); 3786 return NOKEY; 3787 } 3788 3789 next_code: 3790 #if 1 3791 /* I don't like this, but... XXX */ 3792 if (flags & SCGETC_CN) { 3793 syscons_lock(); 3794 sccnupdate(sc->cur_scp); 3795 syscons_unlock(); 3796 } 3797 #endif 3798 scp = sc->cur_scp; 3799 /* first see if there is something in the keyboard port */ 3800 for (;;) { 3801 c = kbd_read_char(sc->kbd, !(flags & SCGETC_NONBLOCK)); 3802 if (c == ERRKEY) { 3803 if (!(flags & SCGETC_CN)) 3804 sc_bell(scp, bios_value.bell_pitch, BELL_DURATION); 3805 } else if (c == NOKEY) { 3806 lwkt_reltoken(&vga_token); 3807 return c; 3808 } else { 3809 break; 3810 } 3811 } 3812 3813 /* make screensaver happy */ 3814 if (!(c & RELKEY)) 3815 sc_touch_scrn_saver(); 3816 3817 if (!(flags & SCGETC_CN)) 3818 /* do the /dev/random device a favour */ 3819 add_keyboard_randomness(c); 3820 3821 if (scp->kbd_mode != K_XLATE) { 3822 lwkt_reltoken(&vga_token); 3823 return KEYCHAR(c); 3824 } 3825 3826 /* if scroll-lock pressed allow history browsing */ 3827 if (!ISGRAPHSC(scp) && scp->history && scp->status & SLKED) { 3828 3829 scp->status &= ~CURSOR_ENABLED; 3830 sc_remove_cursor_image(scp); 3831 3832 #ifndef SC_NO_HISTORY 3833 if (!(scp->status & BUFFER_SAVED)) { 3834 scp->status |= BUFFER_SAVED; 3835 sc_hist_save(scp); 3836 } 3837 switch (c) { 3838 /* FIXME: key codes */ 3839 case SPCLKEY | FKEY | F(49): /* home key */ 3840 sc_remove_cutmarking(scp); 3841 sc_hist_home(scp); 3842 goto next_code; 3843 3844 case SPCLKEY | FKEY | F(57): /* end key */ 3845 sc_remove_cutmarking(scp); 3846 sc_hist_end(scp); 3847 goto next_code; 3848 3849 case SPCLKEY | FKEY | F(50): /* up arrow key */ 3850 sc_remove_cutmarking(scp); 3851 if (sc_hist_up_line(scp)) 3852 if (!(flags & SCGETC_CN)) 3853 sc_bell(scp, bios_value.bell_pitch, BELL_DURATION); 3854 goto next_code; 3855 3856 case SPCLKEY | FKEY | F(58): /* down arrow key */ 3857 sc_remove_cutmarking(scp); 3858 if (sc_hist_down_line(scp)) 3859 if (!(flags & SCGETC_CN)) 3860 sc_bell(scp, bios_value.bell_pitch, BELL_DURATION); 3861 goto next_code; 3862 3863 case SPCLKEY | FKEY | F(51): /* page up key */ 3864 sc_remove_cutmarking(scp); 3865 for (i=0; i<scp->ysize; i++) { 3866 if (sc_hist_up_line(scp)) { 3867 if (!(flags & SCGETC_CN)) 3868 sc_bell(scp, bios_value.bell_pitch, BELL_DURATION); 3869 break; 3870 } 3871 } 3872 goto next_code; 3873 3874 case SPCLKEY | FKEY | F(59): /* page down key */ 3875 sc_remove_cutmarking(scp); 3876 for (i=0; i<scp->ysize; i++) { 3877 if (sc_hist_down_line(scp)) { 3878 if (!(flags & SCGETC_CN)) 3879 sc_bell(scp, bios_value.bell_pitch, BELL_DURATION); 3880 break; 3881 } 3882 } 3883 goto next_code; 3884 } 3885 #endif /* SC_NO_HISTORY */ 3886 } 3887 3888 /* 3889 * Process and consume special keys here. Return a plain char code 3890 * or a char code with the META flag or a function key code. 3891 */ 3892 if (c & RELKEY) { 3893 /* key released */ 3894 /* goto next_code */ 3895 } else { 3896 /* key pressed */ 3897 if (c & SPCLKEY) { 3898 c &= ~SPCLKEY; 3899 switch (KEYCHAR(c)) { 3900 /* LOCKING KEYS */ 3901 case NLK: case CLK: case ALK: 3902 break; 3903 case SLK: 3904 kbd_ioctl(sc->kbd, KDGKBSTATE, (caddr_t)&f); 3905 if (f & SLKED) { 3906 scp->status |= SLKED; 3907 } else { 3908 if (scp->status & SLKED) { 3909 scp->status &= ~SLKED; 3910 #ifndef SC_NO_HISTORY 3911 if (scp->status & BUFFER_SAVED) { 3912 if (!sc_hist_restore(scp)) 3913 sc_remove_cutmarking(scp); 3914 scp->status &= ~BUFFER_SAVED; 3915 scp->status |= CURSOR_ENABLED; 3916 sc_draw_cursor_image(scp); 3917 } 3918 tp = VIRTUAL_TTY(sc, scp->index); 3919 if (ISTTYOPEN(tp)) 3920 scstart(tp); 3921 #endif 3922 } 3923 } 3924 break; 3925 3926 /* NON-LOCKING KEYS */ 3927 case NOP: 3928 case LSH: case RSH: case LCTR: case RCTR: 3929 case LALT: case RALT: case ASH: case META: 3930 break; 3931 3932 case BTAB: 3933 if (!(sc->flags & SC_SCRN_BLANKED)) { 3934 lwkt_reltoken(&vga_token); 3935 return c; 3936 } 3937 break; 3938 3939 case SPSC: 3940 #if NSPLASH > 0 3941 /* force activatation/deactivation of the screen saver */ 3942 if (!(sc->flags & SC_SCRN_BLANKED)) { 3943 run_scrn_saver = TRUE; 3944 sc->scrn_time_stamp -= scrn_blank_time; 3945 } 3946 if (cold) { 3947 /* 3948 * While devices are being probed, the screen saver need 3949 * to be invoked explictly. XXX 3950 */ 3951 if (sc->flags & SC_SCRN_BLANKED) { 3952 scsplash_stick(FALSE); 3953 stop_scrn_saver(sc, current_saver); 3954 } else { 3955 if (!ISGRAPHSC(scp)) { 3956 scsplash_stick(TRUE); 3957 (*current_saver)(sc, TRUE); 3958 } 3959 } 3960 } 3961 #endif /* NSPLASH */ 3962 break; 3963 3964 case RBT: 3965 #ifndef SC_DISABLE_REBOOT 3966 shutdown_nice(0); 3967 #endif 3968 break; 3969 3970 case HALT: 3971 #ifndef SC_DISABLE_REBOOT 3972 shutdown_nice(RB_HALT); 3973 #endif 3974 break; 3975 3976 case PDWN: 3977 #ifndef SC_DISABLE_REBOOT 3978 shutdown_nice(RB_HALT|RB_POWEROFF); 3979 #endif 3980 break; 3981 3982 case SUSP: 3983 case STBY: 3984 break; 3985 3986 case DBG: 3987 #ifndef SC_DISABLE_DDBKEY 3988 #ifdef DDB 3989 lwkt_reltoken(&vga_token); 3990 Debugger("manual escape to debugger"); 3991 lwkt_gettoken(&vga_token); 3992 #else 3993 kprintf("No debugger in kernel\n"); 3994 #endif 3995 #else /* SC_DISABLE_DDBKEY */ 3996 /* do nothing */ 3997 #endif /* SC_DISABLE_DDBKEY */ 3998 break; 3999 4000 case PNC: 4001 if (enable_panic_key) 4002 panic("Forced by the panic key"); 4003 break; 4004 4005 case NEXT: 4006 this_scr = scp->index; 4007 for (i = (this_scr - sc->first_vty + 1)%sc->vtys; 4008 sc->first_vty + i != this_scr; 4009 i = (i + 1)%sc->vtys) { 4010 struct tty *tp = VIRTUAL_TTY(sc, sc->first_vty + i); 4011 if (ISTTYOPEN(tp)) { 4012 syscons_lock(); 4013 sc_switch_scr(scp->sc, sc->first_vty + i); 4014 syscons_unlock(); 4015 break; 4016 } 4017 } 4018 break; 4019 4020 case PREV: 4021 this_scr = scp->index; 4022 for (i = (this_scr - sc->first_vty + sc->vtys - 1)%sc->vtys; 4023 sc->first_vty + i != this_scr; 4024 i = (i + sc->vtys - 1)%sc->vtys) { 4025 struct tty *tp = VIRTUAL_TTY(sc, sc->first_vty + i); 4026 if (ISTTYOPEN(tp)) { 4027 syscons_lock(); 4028 sc_switch_scr(scp->sc, sc->first_vty + i); 4029 syscons_unlock(); 4030 break; 4031 } 4032 } 4033 break; 4034 4035 default: 4036 if (KEYCHAR(c) >= F_SCR && KEYCHAR(c) <= L_SCR) { 4037 syscons_lock(); 4038 sc_switch_scr(scp->sc, sc->first_vty + KEYCHAR(c) - F_SCR); 4039 syscons_unlock(); 4040 break; 4041 } 4042 /* assert(c & FKEY) */ 4043 if (!(sc->flags & SC_SCRN_BLANKED)) { 4044 lwkt_reltoken(&vga_token); 4045 return c; 4046 } 4047 break; 4048 } 4049 /* goto next_code */ 4050 } else { 4051 /* regular keys (maybe MKEY is set) */ 4052 if (!(sc->flags & SC_SCRN_BLANKED)) { 4053 lwkt_reltoken(&vga_token); 4054 return c; 4055 } 4056 } 4057 } 4058 4059 goto next_code; 4060 } 4061 4062 static int 4063 scmmap(struct dev_mmap_args *ap) 4064 { 4065 scr_stat *scp; 4066 4067 lwkt_gettoken(&vga_token); 4068 scp = SC_STAT(ap->a_head.a_dev); 4069 if (scp != scp->sc->cur_scp) { 4070 lwkt_reltoken(&vga_token); 4071 return EINVAL; 4072 } 4073 if (scp->sc->fbi != NULL) { 4074 size_t sz = 4075 roundup(scp->sc->fbi->height * scp->sc->fbi->stride, PAGE_SIZE); 4076 if (ap->a_offset > sz - PAGE_SIZE) { 4077 lwkt_reltoken(&vga_token); 4078 return EINVAL; 4079 } else { 4080 ap->a_result = atop(scp->sc->fbi->paddr + ap->a_offset); 4081 } 4082 } else { 4083 ap->a_result = (*vidsw[scp->sc->adapter]->mmap)(scp->sc->adp, 4084 ap->a_offset, 4085 ap->a_nprot); 4086 } 4087 lwkt_reltoken(&vga_token); 4088 return(0); 4089 } 4090 4091 static int 4092 save_kbd_state(scr_stat *scp, int unlock) 4093 { 4094 int state; 4095 int error; 4096 4097 WANT_UNLOCK(unlock); 4098 error = kbd_ioctl(scp->sc->kbd, KDGKBSTATE, (caddr_t)&state); 4099 WANT_LOCK(unlock); 4100 4101 if (error == ENOIOCTL) 4102 error = ENODEV; 4103 if (error == 0) { 4104 scp->status &= ~LOCK_MASK; 4105 scp->status |= state; 4106 } 4107 return error; 4108 } 4109 4110 static int 4111 update_kbd_state(scr_stat *scp, int new_bits, int mask, int unlock) 4112 { 4113 int state; 4114 int error; 4115 4116 if (mask != LOCK_MASK) { 4117 WANT_UNLOCK(unlock); 4118 error = kbd_ioctl(scp->sc->kbd, KDGKBSTATE, (caddr_t)&state); 4119 WANT_LOCK(unlock); 4120 4121 if (error == ENOIOCTL) 4122 error = ENODEV; 4123 if (error) { 4124 return error; 4125 } 4126 state &= ~mask; 4127 state |= new_bits & mask; 4128 } else { 4129 state = new_bits & LOCK_MASK; 4130 } 4131 WANT_UNLOCK(unlock); 4132 error = kbd_ioctl(scp->sc->kbd, KDSKBSTATE, (caddr_t)&state); 4133 WANT_LOCK(unlock); 4134 if (error == ENOIOCTL) 4135 error = ENODEV; 4136 return error; 4137 } 4138 4139 static int 4140 update_kbd_leds(scr_stat *scp, int which) 4141 { 4142 int error; 4143 4144 which &= LOCK_MASK; 4145 error = kbd_ioctl(scp->sc->kbd, KDSETLED, (caddr_t)&which); 4146 if (error == ENOIOCTL) 4147 error = ENODEV; 4148 return error; 4149 } 4150 4151 int 4152 set_mode(scr_stat *scp) 4153 { 4154 video_info_t info; 4155 4156 lwkt_gettoken(&vga_token); 4157 /* reject unsupported mode */ 4158 if (scp->sc->fbi == NULL && (*vidsw[scp->sc->adapter]->get_info)(scp->sc->adp, scp->mode, &info)) { 4159 lwkt_reltoken(&vga_token); 4160 return 1; 4161 } 4162 4163 /* if this vty is not currently showing, do nothing */ 4164 if (scp != scp->sc->cur_scp) { 4165 lwkt_reltoken(&vga_token); 4166 return 0; 4167 } 4168 4169 /* setup video hardware for the given mode */ 4170 if (scp->sc->fbi == NULL) { 4171 (*vidsw[scp->sc->adapter]->set_mode)(scp->sc->adp, scp->mode); 4172 sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, scp->xsize, scp->ysize, 4173 (void *)scp->sc->adp->va_window, FALSE); 4174 } else { 4175 goto done; 4176 } 4177 4178 #ifndef SC_NO_FONT_LOADING 4179 /* load appropriate font */ 4180 if (!(scp->status & GRAPHICS_MODE)) { 4181 if (!(scp->status & PIXEL_MODE) && ISFONTAVAIL(scp->sc->adp->va_flags)) { 4182 if (scp->font_height < 14) { 4183 if (scp->sc->fonts_loaded & FONT_8) 4184 sc_load_font(scp, 0, 8, scp->sc->font_8, 0, 256); 4185 } else if (scp->font_height >= 16) { 4186 if (scp->sc->fonts_loaded & FONT_16) 4187 sc_load_font(scp, 0, 16, scp->sc->font_16, 0, 256); 4188 } else { 4189 if (scp->sc->fonts_loaded & FONT_14) 4190 sc_load_font(scp, 0, 14, scp->sc->font_14, 0, 256); 4191 } 4192 /* 4193 * FONT KLUDGE: 4194 * This is an interim kludge to display correct font. 4195 * Always use the font page #0 on the video plane 2. 4196 * Somehow we cannot show the font in other font pages on 4197 * some video cards... XXX 4198 */ 4199 sc_show_font(scp, 0); 4200 } 4201 mark_all(scp); 4202 } 4203 #endif /* !SC_NO_FONT_LOADING */ 4204 4205 sc_set_border(scp, scp->border); 4206 sc_set_cursor_image(scp); 4207 4208 done: 4209 lwkt_reltoken(&vga_token); 4210 return 0; 4211 } 4212 4213 void 4214 refresh_ega_palette(scr_stat *scp) 4215 { 4216 uint32_t r, g, b; 4217 int reg; 4218 int rsize, gsize, bsize; 4219 int rfld, gfld, bfld; 4220 int i; 4221 4222 rsize = scp->sc->adp->va_info.vi_pixel_fsizes[0]; 4223 gsize = scp->sc->adp->va_info.vi_pixel_fsizes[1]; 4224 bsize = scp->sc->adp->va_info.vi_pixel_fsizes[2]; 4225 rfld = scp->sc->adp->va_info.vi_pixel_fields[0]; 4226 gfld = scp->sc->adp->va_info.vi_pixel_fields[1]; 4227 bfld = scp->sc->adp->va_info.vi_pixel_fields[2]; 4228 4229 for (i = 0; i < 16; i++) { 4230 reg = scp->sc->adp->va_palette_regs[i]; 4231 4232 r = scp->sc->palette[reg * 3] >> (8 - rsize); 4233 g = scp->sc->palette[reg * 3 + 1] >> (8 - gsize); 4234 b = scp->sc->palette[reg * 3 + 2] >> (8 - bsize); 4235 4236 scp->ega_palette[i] = (r << rfld) + (g << gfld) + (b << bfld); 4237 } 4238 } 4239 4240 void 4241 sc_set_border(scr_stat *scp, int color) 4242 { 4243 atomic_add_int(&scp->sc->videoio_in_progress, 1); 4244 (*scp->rndr->draw_border)(scp, color); 4245 atomic_add_int(&scp->sc->videoio_in_progress, -1); 4246 } 4247 4248 #ifndef SC_NO_FONT_LOADING 4249 void 4250 sc_load_font(scr_stat *scp, int page, int size, u_char *buf, 4251 int base, int count) 4252 { 4253 sc_softc_t *sc; 4254 4255 sc = scp->sc; 4256 sc->font_loading_in_progress = TRUE; 4257 (*vidsw[sc->adapter]->load_font)(sc->adp, page, size, buf, base, count); 4258 sc->font_loading_in_progress = FALSE; 4259 } 4260 4261 void 4262 sc_save_font(scr_stat *scp, int page, int size, u_char *buf, 4263 int base, int count) 4264 { 4265 sc_softc_t *sc; 4266 4267 sc = scp->sc; 4268 sc->font_loading_in_progress = TRUE; 4269 (*vidsw[sc->adapter]->save_font)(sc->adp, page, size, buf, base, count); 4270 sc->font_loading_in_progress = FALSE; 4271 } 4272 4273 void 4274 sc_show_font(scr_stat *scp, int page) 4275 { 4276 (*vidsw[scp->sc->adapter]->show_font)(scp->sc->adp, page); 4277 } 4278 #endif /* !SC_NO_FONT_LOADING */ 4279 4280 void 4281 sc_paste(scr_stat *scp, u_char *p, int count) 4282 { 4283 struct tty *tp; 4284 u_char *rmap; 4285 4286 /* 4287 * Holy hell, don't try to inject a paste buffer if the keyboard 4288 * is not in ascii mode! 4289 */ 4290 if (scp->kbd_mode != K_XLATE) 4291 return; 4292 4293 lwkt_gettoken(&vga_token); 4294 if (scp->status & MOUSE_VISIBLE) { 4295 tp = VIRTUAL_TTY(scp->sc, scp->sc->cur_scp->index); 4296 lwkt_gettoken(&tp->t_token); 4297 if (!ISTTYOPEN(tp)) { 4298 lwkt_reltoken(&tp->t_token); 4299 lwkt_reltoken(&vga_token); 4300 return; 4301 } 4302 rmap = scp->sc->scr_rmap; 4303 for (; count > 0; --count) 4304 (*linesw[tp->t_line].l_rint)(rmap[*p++], tp); 4305 lwkt_reltoken(&tp->t_token); 4306 } 4307 lwkt_reltoken(&vga_token); 4308 } 4309 4310 void 4311 sc_bell(scr_stat *scp, int pitch, int duration) 4312 { 4313 if (cold || shutdown_in_progress) 4314 return; 4315 4316 if (scp != scp->sc->cur_scp && (scp->sc->flags & SC_QUIET_BELL)) { 4317 return; 4318 } 4319 4320 if (scp->sc->flags & SC_VISUAL_BELL) { 4321 if (scp->sc->blink_in_progress) { 4322 return; 4323 } 4324 scp->sc->blink_in_progress = 3; 4325 if (scp != scp->sc->cur_scp) 4326 scp->sc->blink_in_progress += 2; 4327 lockmgr(&syscons_blink_lk, LK_EXCLUSIVE); 4328 sc_blink_screen(scp->sc->cur_scp); 4329 lockmgr(&syscons_blink_lk, LK_RELEASE); 4330 } else if (duration != 0 && pitch != 0) { 4331 if (scp != scp->sc->cur_scp) 4332 pitch *= 2; 4333 sysbeep(pitch, duration); 4334 } 4335 } 4336 4337 /* 4338 * Blink the screen, called with the syscons_mtx and syscons_blink_lk 4339 * held. Can be called directly or via the callout. 4340 */ 4341 static void 4342 sc_blink_screen(scr_stat *scp) 4343 { 4344 if (ISGRAPHSC(scp) || (scp->sc->blink_in_progress <= 1)) { 4345 scp->sc->blink_in_progress = 0; 4346 mark_all(scp); 4347 if (scp->sc->delayed_next_scr) 4348 sc_switch_scr(scp->sc, scp->sc->delayed_next_scr - 1); 4349 } else { 4350 (*scp->rndr->draw)(scp, 0, scp->xsize*scp->ysize, 4351 scp->sc->blink_in_progress & 1); 4352 scp->sc->blink_in_progress--; 4353 callout_reset(&scp->blink_screen_ch, hz / 10, 4354 blink_screen_callout, scp); 4355 } 4356 } 4357 4358 /* 4359 * Screen blink callout. Note that there is a lock order 4360 * reversal between syscons_blink_lk and the syscons lock. 4361 * Acquire the syscons lock non-blocking. 4362 */ 4363 static void 4364 blink_screen_callout(void *arg) 4365 { 4366 scr_stat *scp = arg; 4367 4368 if (syscons_lock_nonblock() == 0) { 4369 sc_blink_screen(scp); 4370 syscons_unlock(); 4371 } else { 4372 callout_reset(&scp->blink_screen_ch, hz / 10, 4373 blink_screen_callout, scp); 4374 } 4375 } 4376 4377 /* 4378 * Allocate active keyboard. Try to allocate "kbdmux" keyboard first, and, 4379 * if found, add all non-busy keyboards to "kbdmux". Otherwise look for 4380 * any keyboard. 4381 */ 4382 4383 static int 4384 sc_allocate_keyboard(sc_softc_t *sc, int unit) 4385 { 4386 int idx0, idx; 4387 keyboard_t *k0, *k; 4388 keyboard_info_t ki; 4389 4390 idx0 = kbd_allocate("kbdmux", -1, (void *)&sc->keyboard, sckbdevent, sc); 4391 if (idx0 != -1) { 4392 k0 = kbd_get_keyboard(idx0); 4393 4394 for (idx = kbd_find_keyboard2("*", -1, 0, 0); 4395 idx != -1; 4396 idx = kbd_find_keyboard2("*", -1, idx + 1, 0)) { 4397 k = kbd_get_keyboard(idx); 4398 4399 if (idx == idx0 || KBD_IS_BUSY(k)) 4400 continue; 4401 4402 bzero(&ki, sizeof(ki)); 4403 strcpy(ki.kb_name, k->kb_name); 4404 ki.kb_unit = k->kb_unit; 4405 4406 kbd_ioctl(k0, KBADDKBD, (caddr_t) &ki); 4407 } 4408 } else 4409 idx0 = kbd_allocate("*", unit, (void *)&sc->keyboard, sckbdevent, sc); 4410 4411 return (idx0); 4412 } 4413