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(__x86_64__) 1375 curthread->td_lwp->lwp_md.md_regs->tf_rflags |= PSL_IOPL; 1376 #endif 1377 lwkt_reltoken(&vga_token); 1378 return 0; 1379 1380 case KDDISABIO: /* disallow io operations (default) */ 1381 #if defined(__x86_64__) 1382 curthread->td_lwp->lwp_md.md_regs->tf_rflags &= ~PSL_IOPL; 1383 #endif 1384 lwkt_reltoken(&vga_token); 1385 return 0; 1386 1387 case KDSKBSTATE: /* set keyboard state (locks) */ 1388 if (*(int *)data & ~LOCK_MASK) { 1389 lwkt_reltoken(&vga_token); 1390 return EINVAL; 1391 } 1392 syscons_lock(); 1393 scp->status &= ~LOCK_MASK; 1394 scp->status |= *(int *)data; 1395 syscons_unlock(); 1396 if (scp == sc->cur_scp) 1397 update_kbd_state(scp, scp->status, LOCK_MASK, FALSE); 1398 lwkt_reltoken(&vga_token); 1399 return 0; 1400 1401 case KDGKBSTATE: /* get keyboard state (locks) */ 1402 if (scp == sc->cur_scp) 1403 save_kbd_state(scp, FALSE); 1404 *(int *)data = scp->status & LOCK_MASK; 1405 lwkt_reltoken(&vga_token); 1406 return 0; 1407 1408 case KDGETREPEAT: /* get keyboard repeat & delay rates */ 1409 case KDSETREPEAT: /* set keyboard repeat & delay rates (new) */ 1410 error = kbd_ioctl(sc->kbd, cmd, data); 1411 if (error == ENOIOCTL) 1412 error = ENODEV; 1413 lwkt_reltoken(&vga_token); 1414 return error; 1415 1416 case KDSKBMODE: /* set keyboard mode */ 1417 switch (*(int *)data) { 1418 case K_XLATE: /* switch to XLT ascii mode */ 1419 case K_RAW: /* switch to RAW scancode mode */ 1420 case K_CODE: /* switch to CODE mode */ 1421 scp->kbd_mode = *(int *)data; 1422 if (scp == sc->cur_scp) 1423 kbd_ioctl(sc->kbd, cmd, data); 1424 lwkt_reltoken(&vga_token); 1425 return 0; 1426 default: 1427 lwkt_reltoken(&vga_token); 1428 return EINVAL; 1429 } 1430 /* NOT REACHED */ 1431 1432 case KDGKBMODE: /* get keyboard mode */ 1433 *(int *)data = scp->kbd_mode; 1434 lwkt_reltoken(&vga_token); 1435 return 0; 1436 1437 case KDGKBINFO: 1438 error = kbd_ioctl(sc->kbd, cmd, data); 1439 if (error == ENOIOCTL) 1440 error = ENODEV; 1441 lwkt_reltoken(&vga_token); 1442 return error; 1443 1444 case KDMKTONE: /* sound the bell */ 1445 syscons_lock(); 1446 if (*(int*)data) 1447 sc_bell(scp, (*(int*)data)&0xffff, 1448 (((*(int*)data)>>16)&0xffff)*hz/1000); 1449 else 1450 sc_bell(scp, scp->bell_pitch, scp->bell_duration); 1451 syscons_unlock(); 1452 lwkt_reltoken(&vga_token); 1453 return 0; 1454 1455 case KIOCSOUND: /* make tone (*data) hz */ 1456 syscons_lock(); 1457 if (scp == sc->cur_scp) { 1458 if (*(int *)data) { 1459 error = sc_tone(*(int *)data); 1460 } else { 1461 error = sc_tone(0); 1462 } 1463 } else { 1464 error = 0; 1465 } 1466 syscons_unlock(); 1467 lwkt_reltoken(&vga_token); 1468 return error; 1469 1470 case KDGKBTYPE: /* get keyboard type */ 1471 error = kbd_ioctl(sc->kbd, cmd, data); 1472 if (error == ENOIOCTL) { 1473 /* always return something? XXX */ 1474 *(int *)data = 0; 1475 } 1476 lwkt_reltoken(&vga_token); 1477 return 0; 1478 1479 case KDSETLED: /* set keyboard LED status */ 1480 if (*(int *)data & ~LED_MASK) { /* FIXME: LOCK_MASK? */ 1481 lwkt_reltoken(&vga_token); 1482 return EINVAL; 1483 } 1484 syscons_lock(); 1485 scp->status &= ~LED_MASK; 1486 scp->status |= *(int *)data; 1487 syscons_unlock(); 1488 if (scp == sc->cur_scp) 1489 update_kbd_leds(scp, scp->status); 1490 lwkt_reltoken(&vga_token); 1491 return 0; 1492 1493 case KDGETLED: /* get keyboard LED status */ 1494 if (scp == sc->cur_scp) 1495 save_kbd_state(scp, FALSE); 1496 *(int *)data = scp->status & LED_MASK; 1497 lwkt_reltoken(&vga_token); 1498 return 0; 1499 1500 case KBADDKBD: /* add/remove keyboard to/from mux */ 1501 case KBRELKBD: 1502 error = kbd_ioctl(sc->kbd, cmd, data); 1503 if (error == ENOIOCTL) 1504 error = ENODEV; 1505 lwkt_reltoken(&vga_token); 1506 return error; 1507 1508 case CONS_SETKBD: /* set the new keyboard */ 1509 { 1510 keyboard_t *newkbd; 1511 1512 newkbd = kbd_get_keyboard(*(int *)data); 1513 if (newkbd == NULL) { 1514 lwkt_reltoken(&vga_token); 1515 return EINVAL; 1516 } 1517 error = 0; 1518 if (sc->kbd != newkbd) { 1519 i = kbd_allocate(newkbd->kb_name, newkbd->kb_unit, 1520 (void *)&sc->keyboard, sckbdevent, sc); 1521 /* i == newkbd->kb_index */ 1522 if (i >= 0) { 1523 if (sc->kbd != NULL) { 1524 save_kbd_state(sc->cur_scp, FALSE); 1525 kbd_release(sc->kbd, (void *)&sc->keyboard); 1526 } 1527 syscons_lock(); 1528 sc->kbd = kbd_get_keyboard(i); /* sc->kbd == newkbd */ 1529 sc->keyboard = i; 1530 syscons_unlock(); 1531 kbd_ioctl(sc->kbd, KDSKBMODE, 1532 (caddr_t)&sc->cur_scp->kbd_mode); 1533 update_kbd_state(sc->cur_scp, sc->cur_scp->status, 1534 LOCK_MASK, FALSE); 1535 } else { 1536 error = EPERM; /* XXX */ 1537 } 1538 } 1539 lwkt_reltoken(&vga_token); 1540 return error; 1541 } 1542 1543 case CONS_RELKBD: /* release the current keyboard */ 1544 error = 0; 1545 if (sc->kbd != NULL) { 1546 save_kbd_state(sc->cur_scp, FALSE); 1547 error = kbd_release(sc->kbd, (void *)&sc->keyboard); 1548 if (error == 0) { 1549 syscons_lock(); 1550 sc->kbd = NULL; 1551 sc->keyboard = -1; 1552 syscons_unlock(); 1553 } 1554 } 1555 lwkt_reltoken(&vga_token); 1556 return error; 1557 1558 case CONS_GETTERM: /* get the current terminal emulator info */ 1559 { 1560 sc_term_sw_t *sw; 1561 1562 if (((term_info_t *)data)->ti_index == 0) { 1563 sw = scp->tsw; 1564 } else { 1565 sw = sc_term_match_by_number(((term_info_t *)data)->ti_index); 1566 } 1567 if (sw != NULL) { 1568 strncpy(((term_info_t *)data)->ti_name, sw->te_name, 1569 sizeof(((term_info_t *)data)->ti_name)); 1570 strncpy(((term_info_t *)data)->ti_desc, sw->te_desc, 1571 sizeof(((term_info_t *)data)->ti_desc)); 1572 ((term_info_t *)data)->ti_flags = 0; 1573 lwkt_reltoken(&vga_token); 1574 return 0; 1575 } else { 1576 ((term_info_t *)data)->ti_name[0] = '\0'; 1577 ((term_info_t *)data)->ti_desc[0] = '\0'; 1578 ((term_info_t *)data)->ti_flags = 0; 1579 lwkt_reltoken(&vga_token); 1580 return EINVAL; 1581 } 1582 } 1583 1584 case CONS_SETTERM: /* set the current terminal emulator */ 1585 syscons_lock(); 1586 error = sc_init_emulator(scp, ((term_info_t *)data)->ti_name); 1587 /* FIXME: what if scp == sc_console! XXX */ 1588 syscons_unlock(); 1589 lwkt_reltoken(&vga_token); 1590 return error; 1591 1592 case GIO_SCRNMAP: /* get output translation table */ 1593 bcopy(&sc->scr_map, data, sizeof(sc->scr_map)); 1594 lwkt_reltoken(&vga_token); 1595 return 0; 1596 1597 case PIO_SCRNMAP: /* set output translation table */ 1598 bcopy(data, &sc->scr_map, sizeof(sc->scr_map)); 1599 for (i=0; i<sizeof(sc->scr_map); i++) { 1600 sc->scr_rmap[sc->scr_map[i]] = i; 1601 } 1602 lwkt_reltoken(&vga_token); 1603 return 0; 1604 1605 case GIO_KEYMAP: /* get keyboard translation table */ 1606 case PIO_KEYMAP: /* set keyboard translation table */ 1607 case GIO_DEADKEYMAP: /* get accent key translation table */ 1608 case PIO_DEADKEYMAP: /* set accent key translation table */ 1609 case GETFKEY: /* get function key string */ 1610 case SETFKEY: /* set function key string */ 1611 error = kbd_ioctl(sc->kbd, cmd, data); 1612 if (error == ENOIOCTL) 1613 error = ENODEV; 1614 lwkt_reltoken(&vga_token); 1615 return error; 1616 1617 #ifndef SC_NO_FONT_LOADING 1618 1619 case PIO_FONT8x8: /* set 8x8 dot font */ 1620 if (sc->fbi == NULL && !ISFONTAVAIL(sc->adp->va_flags)) { 1621 lwkt_reltoken(&vga_token); 1622 return ENXIO; 1623 } 1624 syscons_lock(); 1625 bcopy(data, sc->font_8, 8*256); 1626 sc->fonts_loaded |= FONT_8; 1627 /* 1628 * FONT KLUDGE 1629 * Always use the font page #0. XXX 1630 * Don't load if the current font size is not 8x8. 1631 */ 1632 if (sc->fbi == NULL 1633 && ISTEXTSC(sc->cur_scp) && (sc->cur_scp->font_height < 14)) { 1634 sc_load_font(sc->cur_scp, 0, 8, sc->font_8, 0, 256); 1635 } 1636 syscons_unlock(); 1637 lwkt_reltoken(&vga_token); 1638 return 0; 1639 1640 case GIO_FONT8x8: /* get 8x8 dot font */ 1641 if (sc->fbi == NULL && !ISFONTAVAIL(sc->adp->va_flags)) { 1642 lwkt_reltoken(&vga_token); 1643 return ENXIO; 1644 } 1645 if (sc->fonts_loaded & FONT_8) { 1646 bcopy(sc->font_8, data, 8*256); 1647 lwkt_reltoken(&vga_token); 1648 return 0; 1649 } 1650 else { 1651 lwkt_reltoken(&vga_token); 1652 return ENXIO; 1653 } 1654 1655 case PIO_FONT8x14: /* set 8x14 dot font */ 1656 if (sc->fbi == NULL && !ISFONTAVAIL(sc->adp->va_flags)) { 1657 lwkt_reltoken(&vga_token); 1658 return ENXIO; 1659 } 1660 syscons_lock(); 1661 bcopy(data, sc->font_14, 14*256); 1662 sc->fonts_loaded |= FONT_14; 1663 /* 1664 * FONT KLUDGE 1665 * Always use the font page #0. XXX 1666 * Don't load if the current font size is not 8x14. 1667 */ 1668 if (sc->fbi == NULL 1669 && ISTEXTSC(sc->cur_scp) 1670 && (sc->cur_scp->font_height >= 14) 1671 && (sc->cur_scp->font_height < 16)) { 1672 sc_load_font(sc->cur_scp, 0, 14, sc->font_14, 0, 256); 1673 } 1674 syscons_unlock(); 1675 lwkt_reltoken(&vga_token); 1676 return 0; 1677 1678 case GIO_FONT8x14: /* get 8x14 dot font */ 1679 if (sc->fbi == NULL && !ISFONTAVAIL(sc->adp->va_flags)) { 1680 lwkt_reltoken(&vga_token); 1681 return ENXIO; 1682 } 1683 if (sc->fonts_loaded & FONT_14) { 1684 bcopy(sc->font_14, data, 14*256); 1685 lwkt_reltoken(&vga_token); 1686 return 0; 1687 } 1688 else { 1689 lwkt_reltoken(&vga_token); 1690 return ENXIO; 1691 } 1692 1693 case PIO_FONT8x16: /* set 8x16 dot font */ 1694 if (sc->fbi == NULL && !ISFONTAVAIL(sc->adp->va_flags)) { 1695 lwkt_reltoken(&vga_token); 1696 return ENXIO; 1697 } 1698 syscons_lock(); 1699 bcopy(data, sc->font_16, 16*256); 1700 sc->fonts_loaded |= FONT_16; 1701 /* 1702 * FONT KLUDGE 1703 * Always use the font page #0. XXX 1704 * Don't load if the current font size is not 8x16. 1705 */ 1706 if (sc->fbi == NULL 1707 && ISTEXTSC(sc->cur_scp) && (sc->cur_scp->font_height >= 16)) { 1708 sc_load_font(sc->cur_scp, 0, 16, sc->font_16, 0, 256); 1709 } 1710 syscons_unlock(); 1711 lwkt_reltoken(&vga_token); 1712 return 0; 1713 1714 case GIO_FONT8x16: /* get 8x16 dot font */ 1715 if (sc->fbi == NULL && !ISFONTAVAIL(sc->adp->va_flags)) { 1716 lwkt_reltoken(&vga_token); 1717 return ENXIO; 1718 } 1719 if (sc->fonts_loaded & FONT_16) { 1720 bcopy(sc->font_16, data, 16*256); 1721 lwkt_reltoken(&vga_token); 1722 return 0; 1723 } 1724 else { 1725 lwkt_reltoken(&vga_token); 1726 return ENXIO; 1727 } 1728 1729 #endif /* SC_NO_FONT_LOADING */ 1730 1731 default: 1732 break; 1733 } 1734 1735 lwkt_gettoken(&tp->t_token); 1736 error = (*linesw[tp->t_line].l_ioctl)(tp, cmd, data, flag, ap->a_cred); 1737 if (error != ENOIOCTL) { 1738 lwkt_reltoken(&tp->t_token); 1739 lwkt_reltoken(&vga_token); 1740 1741 return(error); 1742 } 1743 1744 error = ttioctl(tp, cmd, data, flag); 1745 if (error != ENOIOCTL) { 1746 lwkt_reltoken(&tp->t_token); 1747 lwkt_reltoken(&vga_token); 1748 1749 return(error); 1750 } 1751 1752 lwkt_reltoken(&tp->t_token); 1753 lwkt_reltoken(&vga_token); 1754 1755 return(ENOTTY); 1756 } 1757 1758 static void 1759 scstart(struct tty *tp) 1760 { 1761 struct clist *rbp; 1762 int len; 1763 u_char buf[PCBURST]; 1764 scr_stat *scp = SC_STAT(tp->t_dev); 1765 1766 syscons_lock(); 1767 if (scp->status & SLKED || 1768 (scp == scp->sc->cur_scp && scp->sc->blink_in_progress)) 1769 { 1770 syscons_unlock(); 1771 return; 1772 } 1773 if (!(tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP))) { 1774 tp->t_state |= TS_BUSY; 1775 rbp = &tp->t_outq; 1776 while (rbp->c_cc) { 1777 len = clist_qtob(rbp, buf, PCBURST); 1778 sc_puts(scp, buf, len); 1779 } 1780 tp->t_state &= ~TS_BUSY; 1781 syscons_unlock(); 1782 ttwwakeup(tp); 1783 } else { 1784 syscons_unlock(); 1785 } 1786 } 1787 1788 static void 1789 sccnprobe(struct consdev *cp) 1790 { 1791 int unit; 1792 int flags; 1793 1794 cp->cn_pri = sc_get_cons_priority(&unit, &flags); 1795 1796 /* a video card is always required */ 1797 if (probe_efi_fb(1) != 0 && !scvidprobe(unit, flags, TRUE)) 1798 cp->cn_pri = CN_DEAD; 1799 1800 /* syscons will become console even when there is no keyboard */ 1801 sckbdprobe(unit, flags, TRUE); 1802 1803 if (cp->cn_pri == CN_DEAD) { 1804 return; 1805 } 1806 1807 /* initialize required fields */ 1808 cp->cn_probegood = 1; 1809 } 1810 1811 static void 1812 sccninit(struct consdev *cp) 1813 { 1814 int unit; 1815 int flags; 1816 1817 sc_get_cons_priority(&unit, &flags); 1818 scinit(unit, flags | SC_KERNEL_CONSOLE); 1819 sc_console_unit = unit; 1820 sc_console = sc_get_softc(unit, SC_KERNEL_CONSOLE)->console_scp; 1821 } 1822 1823 static void 1824 sccninit_fini(struct consdev *cp) 1825 { 1826 if (cctl_dev == NULL) 1827 kprintf("sccninit_fini: WARNING: cctl_dev is NULL!\n"); 1828 cp->cn_dev = cctl_dev; 1829 } 1830 1831 /* 1832 * This is called when the console is switched away from syscons to 1833 * a late-configuring device (such as a PCIe serial port). Since 1834 * late-configuring devices basically didn't exist until now, this 1835 * routine was never called, and SURPRISE! It doesn't work... causes 1836 * syscons to implode due to all the funny console-not-console structure 1837 * selection syscons does. 1838 * 1839 * Make it a NOP. Just leave the console designation intact, even 1840 * though it is no longer a console. 1841 */ 1842 static void 1843 sccnterm(struct consdev *cp) 1844 { 1845 #if 0 1846 /* we are not the kernel console any more, release everything */ 1847 1848 if (sc_console_unit < 0) 1849 return; /* shouldn't happen */ 1850 1851 #if 0 /* XXX */ 1852 syscons_lock(); 1853 sc_clear_screen(sc_console); 1854 sccnupdate(sc_console); 1855 syscons_unlock(); 1856 #endif 1857 scterm(sc_console_unit, SC_KERNEL_CONSOLE); 1858 sc_console_unit = -1; 1859 sc_console = NULL; 1860 #endif 1861 } 1862 1863 /* 1864 * Console path - cannot block! 1865 */ 1866 static void 1867 sccnputc(void *private, int c) 1868 { 1869 u_char buf[1]; 1870 scr_stat *scp = sc_console; 1871 void *save; 1872 #ifndef SC_NO_HISTORY 1873 #if 0 1874 struct tty *tp; 1875 #endif 1876 #endif /* !SC_NO_HISTORY */ 1877 1878 /* assert(sc_console != NULL) */ 1879 1880 syscons_lock(); 1881 #ifndef SC_NO_HISTORY 1882 if (scp == scp->sc->cur_scp && scp->status & SLKED) { 1883 scp->status &= ~SLKED; 1884 #if 0 1885 /* This can block, illegal in the console path */ 1886 update_kbd_state(scp, scp->status, SLKED, TRUE); 1887 #endif 1888 if (scp->status & BUFFER_SAVED) { 1889 if (!sc_hist_restore(scp)) 1890 sc_remove_cutmarking(scp); 1891 scp->status &= ~BUFFER_SAVED; 1892 scp->status |= CURSOR_ENABLED; 1893 sc_draw_cursor_image(scp); 1894 } 1895 #if 0 1896 tp = VIRTUAL_TTY(scp->sc, scp->index); 1897 /* This can block, illegal in the console path */ 1898 if (ISTTYOPEN(tp)) { 1899 scstart(tp); 1900 } 1901 #endif 1902 } 1903 #endif /* !SC_NO_HISTORY */ 1904 1905 save = scp->ts; 1906 if (kernel_console_ts != NULL) 1907 scp->ts = kernel_console_ts; 1908 buf[0] = c; 1909 sc_puts(scp, buf, 1); 1910 scp->ts = save; 1911 1912 sccnupdate(scp); 1913 syscons_unlock(); 1914 } 1915 1916 /* 1917 * Console path - cannot block! 1918 */ 1919 static int 1920 sccngetc(void *private) 1921 { 1922 return sccngetch(0); 1923 } 1924 1925 /* 1926 * Console path - cannot block! 1927 */ 1928 static int 1929 sccncheckc(void *private) 1930 { 1931 return sccngetch(SCGETC_NONBLOCK); 1932 } 1933 1934 /* 1935 * Set polling mode (also disables the tty feed), use when 1936 * polling for console key input. 1937 */ 1938 static void 1939 sccnpoll(void *private, int on) 1940 { 1941 scr_stat *scp; 1942 1943 syscons_lock(); 1944 sc_touch_scrn_saver(); 1945 scp = sc_console->sc->cur_scp; /* XXX */ 1946 syscons_unlock(); 1947 if (scp->sc->kbd) 1948 kbd_poll(scp->sc->kbd, on); 1949 } 1950 1951 static void 1952 sccndbctl(void *private, int on) 1953 { 1954 /* assert(sc_console_unit >= 0) */ 1955 /* try to switch to the kernel console screen */ 1956 if (on && debugger == 0) { 1957 /* 1958 * TRY to make sure the screen saver is stopped, 1959 * and the screen is updated before switching to 1960 * the vty0. 1961 */ 1962 scrn_timer(NULL); 1963 if (!cold 1964 && sc_console->sc->cur_scp->smode.mode == VT_AUTO 1965 && sc_console->smode.mode == VT_AUTO) { 1966 sc_console->sc->cur_scp->status |= MOUSE_HIDDEN; 1967 syscons_lock(); 1968 sc_switch_scr(sc_console->sc, sc_console->index); 1969 syscons_unlock(); 1970 } 1971 } 1972 if (on) 1973 ++debugger; 1974 else 1975 --debugger; 1976 } 1977 1978 /* 1979 * Console path - cannot block! 1980 */ 1981 static int 1982 sccngetch(int flags) 1983 { 1984 static struct fkeytab fkey; 1985 static int fkeycp; 1986 scr_stat *scp; 1987 u_char *p; 1988 int cur_mode; 1989 int c; 1990 1991 syscons_lock(); 1992 /* assert(sc_console != NULL) */ 1993 1994 /* 1995 * Stop the screen saver and update the screen if necessary. 1996 * What if we have been running in the screen saver code... XXX 1997 */ 1998 sc_touch_scrn_saver(); 1999 scp = sc_console->sc->cur_scp; /* XXX */ 2000 sccnupdate(scp); 2001 syscons_unlock(); 2002 2003 if (fkeycp < fkey.len) { 2004 return fkey.str[fkeycp++]; 2005 } 2006 2007 if (scp->sc->kbd == NULL) { 2008 return -1; 2009 } 2010 2011 /* 2012 * Make sure the keyboard is accessible even when the kbd device 2013 * driver is disabled. 2014 */ 2015 crit_enter(); 2016 kbd_enable(scp->sc->kbd); 2017 2018 /* we shall always use the keyboard in the XLATE mode here */ 2019 cur_mode = scp->kbd_mode; 2020 scp->kbd_mode = K_XLATE; 2021 kbd_ioctl(scp->sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode); 2022 2023 c = scgetc(scp->sc, SCGETC_CN | flags); 2024 2025 scp->kbd_mode = cur_mode; 2026 kbd_ioctl(scp->sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode); 2027 kbd_disable(scp->sc->kbd); 2028 crit_exit(); 2029 2030 switch (KEYFLAGS(c)) { 2031 case 0: /* normal char */ 2032 return KEYCHAR(c); 2033 case FKEY: /* function key */ 2034 p = kbd_get_fkeystr(scp->sc->kbd, KEYCHAR(c), (size_t *)&fkeycp); 2035 fkey.len = fkeycp; 2036 if ((p != NULL) && (fkey.len > 0)) { 2037 bcopy(p, fkey.str, fkey.len); 2038 fkeycp = 1; 2039 return fkey.str[0]; 2040 } 2041 return c; /* XXX */ 2042 case NOKEY: 2043 if (flags & SCGETC_NONBLOCK) 2044 return c; 2045 /* fall through */ 2046 case ERRKEY: 2047 default: 2048 return -1; 2049 } 2050 /* NOT REACHED */ 2051 } 2052 2053 static void 2054 sccnupdate(scr_stat *scp) 2055 { 2056 int ddb_active; 2057 2058 #ifdef DDB 2059 ddb_active = db_active; 2060 #else 2061 ddb_active = 0; 2062 #endif 2063 2064 /* this is a cut-down version of scrn_timer()... */ 2065 2066 /* 2067 * Don't update if videoio is in progress. However, if we are paniced 2068 * or in the debugger it is possible that the variables might be stuck, 2069 * so ignore it in such cases. 2070 */ 2071 if (scp->sc->font_loading_in_progress || scp->sc->videoio_in_progress) { 2072 if (panicstr == NULL && ddb_active == 0 && shutdown_in_progress == 0) 2073 return; 2074 } 2075 2076 if (debugger > 0 || panicstr || ddb_active || shutdown_in_progress) { 2077 sc_touch_scrn_saver(); 2078 } else if (scp != scp->sc->cur_scp) { 2079 return; 2080 } 2081 2082 if (!run_scrn_saver) 2083 scp->sc->flags &= ~SC_SCRN_IDLE; 2084 #if NSPLASH > 0 2085 /* 2086 * This is a hard path, we cannot call stop_scrn_saver() here. 2087 */ 2088 if ((saver_mode != CONS_LKM_SAVER) || !(scp->sc->flags & SC_SCRN_IDLE)) 2089 if (scp->sc->flags & SC_SCRN_BLANKED) { 2090 sc_touch_scrn_saver(); 2091 /*stop_scrn_saver(scp->sc, current_saver);*/ 2092 } 2093 #endif /* NSPLASH */ 2094 2095 if (scp != scp->sc->cur_scp || scp->sc->blink_in_progress 2096 || scp->sc->switch_in_progress) { 2097 return; 2098 } 2099 2100 /* 2101 * FIXME: unlike scrn_timer(), we call scrn_update() from here even 2102 * when write_in_progress is non-zero. XXX 2103 */ 2104 if (!ISGRAPHSC(scp) && !(scp->sc->flags & SC_SCRN_BLANKED)) 2105 scrn_update(scp, TRUE, SCRN_ASYNCOK); 2106 } 2107 2108 static void 2109 scrn_timer(void *arg) 2110 { 2111 static int kbd_interval = 0; 2112 struct timeval tv; 2113 sc_softc_t *sc; 2114 scr_stat *scp; 2115 int again; 2116 2117 /* 2118 * Setup depending on who called us 2119 */ 2120 again = (arg != NULL); 2121 if (arg != NULL) { 2122 sc = (sc_softc_t *)arg; 2123 } else if (sc_console != NULL) { 2124 sc = sc_console->sc; 2125 } else { 2126 return; 2127 } 2128 2129 /* 2130 * Don't do anything when we are performing some I/O operations. 2131 * (These are initiated by the frontend?) 2132 */ 2133 if (sc->font_loading_in_progress || sc->videoio_in_progress) { 2134 if (again) 2135 callout_reset(&sc->scrn_timer_ch, hz / 10, scrn_timer, sc); 2136 return; 2137 } 2138 2139 /* 2140 * Try to allocate a keyboard automatically 2141 */ 2142 if ((sc->kbd == NULL) && (sc->config & SC_AUTODETECT_KBD)) { 2143 if (++kbd_interval >= 25) { 2144 sc->keyboard = sc_allocate_keyboard(sc, -1); 2145 if (sc->keyboard >= 0) { 2146 sc->kbd = kbd_get_keyboard(sc->keyboard); 2147 kbd_ioctl(sc->kbd, KDSKBMODE, 2148 (caddr_t)&sc->cur_scp->kbd_mode); 2149 update_kbd_state(sc->cur_scp, sc->cur_scp->status, 2150 LOCK_MASK, FALSE); 2151 } 2152 kbd_interval = 0; 2153 } 2154 } 2155 2156 /* 2157 * Should we stop the screen saver? We need the syscons_lock 2158 * for most of this stuff. 2159 */ 2160 getmicrouptime(&tv); 2161 2162 if (syscons_lock_nonblock() != 0) { 2163 /* failed to get the lock */ 2164 if (again) 2165 callout_reset(&sc->scrn_timer_ch, hz / 10, scrn_timer, sc); 2166 return; 2167 } 2168 /* successful lock */ 2169 2170 if (debugger > 0 || panicstr || shutdown_in_progress) 2171 sc_touch_scrn_saver(); 2172 if (run_scrn_saver) { 2173 if (tv.tv_sec > sc->scrn_time_stamp + scrn_blank_time) 2174 sc->flags |= SC_SCRN_IDLE; 2175 else 2176 sc->flags &= ~SC_SCRN_IDLE; 2177 } else { 2178 sc->scrn_time_stamp = tv.tv_sec; 2179 sc->flags &= ~SC_SCRN_IDLE; 2180 if (scrn_blank_time > 0) 2181 run_scrn_saver = TRUE; 2182 } 2183 #if NSPLASH > 0 2184 if ((saver_mode != CONS_LKM_SAVER) || !(sc->flags & SC_SCRN_IDLE)) { 2185 if ((sc->flags & SC_SCRN_BLANKED) && !ISGRAPHSC(sc->cur_scp)) 2186 stop_scrn_saver(sc, current_saver); 2187 } 2188 #endif /* NSPLASH */ 2189 2190 /* should we just return ? */ 2191 if (sc->blink_in_progress || sc->switch_in_progress || 2192 sc->write_in_progress) 2193 { 2194 syscons_unlock(); 2195 if (again) 2196 callout_reset(&sc->scrn_timer_ch, hz / 10, scrn_timer, sc); 2197 return; 2198 } 2199 2200 /* Update the screen */ 2201 scp = sc->cur_scp; /* cur_scp may have changed... */ 2202 if (!ISGRAPHSC(scp) && !(sc->flags & SC_SCRN_BLANKED)) 2203 scrn_update(scp, TRUE, SCRN_ASYNCOK); 2204 2205 #if NSPLASH > 0 2206 /* should we activate the screen saver? */ 2207 if ((saver_mode == CONS_LKM_SAVER) && (sc->flags & SC_SCRN_IDLE)) 2208 if (!ISGRAPHSC(scp) || (sc->flags & SC_SCRN_BLANKED)) 2209 (*current_saver)(sc, TRUE); 2210 #endif /* NSPLASH */ 2211 2212 syscons_unlock(); 2213 if (again) 2214 callout_reset(&sc->scrn_timer_ch, hz / 25, scrn_timer, sc); 2215 } 2216 2217 static int 2218 and_region(int *s1, int *e1, int s2, int e2) 2219 { 2220 if (*e1 < s2 || e2 < *s1) 2221 return FALSE; 2222 *s1 = imax(*s1, s2); 2223 *e1 = imin(*e1, e2); 2224 return TRUE; 2225 } 2226 2227 /* 2228 * Refresh modified frame buffer range. Also used to 2229 * scroll (entire FB is marked modified). 2230 * 2231 * This function is allowed to run without the syscons_lock, 2232 * so scp fields can change unexpected. We cache most values 2233 * that we care about and silently discard illegal ranges. 2234 */ 2235 static void 2236 scrn_update(scr_stat *scp, int show_cursor, int flags) 2237 { 2238 int start; 2239 int end; 2240 int cpos; 2241 int copos; 2242 int s; 2243 int e; 2244 int ddb_active; 2245 2246 #ifdef DDB 2247 ddb_active = db_active; 2248 #else 2249 ddb_active = 0; 2250 #endif 2251 2252 /* 2253 * Try to run large screen updates as an async operation, which will 2254 * call this function again from a thread with BULKUNLOCK set, allowing 2255 * interrupts during the update which tends to make the system behave 2256 * better (no sound glitches, etc). 2257 */ 2258 if ((flags & SCRN_ASYNCOK) && syscons_async && scp->asynctd && 2259 (scp->end - scp->start) > 16 && 2260 panicstr == NULL && ddb_active == 0 && shutdown_in_progress == 0) { 2261 scp->show_cursor = show_cursor; 2262 scp->queue_update_td = 1; 2263 wakeup(&scp->asynctd); 2264 return; 2265 } 2266 if (flags & SCRN_BULKUNLOCK) 2267 syscons_lock(); 2268 2269 /* 2270 * Synchronous operation or called from 2271 */ 2272 2273 /* assert(scp == scp->sc->cur_scp) */ 2274 atomic_add_int(&scp->sc->videoio_in_progress, 1); 2275 2276 cpos = scp->cursor_pos; 2277 copos = scp->cursor_oldpos; 2278 2279 #ifndef SC_NO_CUTPASTE 2280 /* remove the previous mouse pointer image if necessary */ 2281 if (scp->status & MOUSE_VISIBLE) { 2282 s = scp->mouse_pos; 2283 e = scp->mouse_pos + scp->xsize + 1; 2284 if ((scp->status & (MOUSE_MOVED | MOUSE_HIDDEN)) 2285 || and_region(&s, &e, scp->start, scp->end) 2286 || ((scp->status & CURSOR_ENABLED) && 2287 (cpos != copos) && 2288 (and_region(&s, &e, cpos, cpos) 2289 || and_region(&s, &e, copos, copos)))) { 2290 sc_remove_mouse_image(scp); 2291 if (scp->end >= scp->xsize*scp->ysize) 2292 scp->end = scp->xsize*scp->ysize - 1; 2293 } 2294 } 2295 #endif /* !SC_NO_CUTPASTE */ 2296 2297 /* 2298 * WARNING: Don't add debugging kprintf()s with syscons locked. 2299 * Or at all. 2300 */ 2301 if (scp->end >= scp->xsize*scp->ysize) { 2302 scp->end = scp->xsize*scp->ysize - 1; 2303 } 2304 if (scp->start < 0) { 2305 scp->start = 0; 2306 } 2307 2308 /* 2309 * Main update, extract update range and reset 2310 * ASAP. 2311 */ 2312 start = scp->start; 2313 end = scp->end; 2314 scp->end = 0; 2315 scp->start = scp->xsize * scp->ysize - 1; 2316 2317 if (start <= end) { 2318 if (flags & SCRN_BULKUNLOCK) { 2319 atomic_add_int(&scp->sc->videoio_in_progress, -1); 2320 syscons_unlock(); 2321 } 2322 (*scp->rndr->draw)(scp, start, end - start + 1, FALSE); 2323 if (flags & SCRN_BULKUNLOCK) { 2324 syscons_lock(); 2325 atomic_add_int(&scp->sc->videoio_in_progress, 1); 2326 } 2327 2328 /* 2329 * Handle cut sequence 2330 */ 2331 s = scp->mouse_cut_start; 2332 e = scp->mouse_cut_end; 2333 cpu_ccfence(); /* allowed to race */ 2334 2335 if (e >= 0) { 2336 if (s > e) { 2337 int r = s; 2338 s = e; 2339 e = r; 2340 } 2341 /* does the cut-mark region overlap with the update region? */ 2342 if (and_region(&s, &e, start, end)) { 2343 if (flags & SCRN_BULKUNLOCK) { 2344 atomic_add_int(&scp->sc->videoio_in_progress, -1); 2345 syscons_unlock(); 2346 } 2347 (*scp->rndr->draw)(scp, s, e - s + 1, TRUE); 2348 if (flags & SCRN_BULKUNLOCK) { 2349 syscons_lock(); 2350 atomic_add_int(&scp->sc->videoio_in_progress, 1); 2351 } 2352 } 2353 } 2354 } 2355 2356 /* we are not to show the cursor and the mouse pointer... */ 2357 if (!show_cursor) 2358 goto cleanup; 2359 2360 /* update cursor image */ 2361 if (scp->status & CURSOR_ENABLED) { 2362 s = start; 2363 e = end; 2364 /* did cursor move since last time ? */ 2365 if (cpos != copos) { 2366 /* do we need to remove old cursor image ? */ 2367 if (!and_region(&s, &e, copos, copos)) 2368 sc_remove_cursor_image(scp); 2369 sc_draw_cursor_image(scp); 2370 } else { 2371 if (s <= e && and_region(&s, &e, cpos, cpos)) { 2372 /* cursor didn't move, but has been overwritten */ 2373 sc_draw_cursor_image(scp); 2374 } else if (scp->sc->flags & SC_BLINK_CURSOR) { 2375 /* if it's a blinking cursor, update it */ 2376 (*scp->rndr->blink_cursor)(scp, cpos, 2377 sc_inside_cutmark(scp, cpos)); 2378 } 2379 } 2380 } 2381 2382 #ifndef SC_NO_CUTPASTE 2383 /* update "pseudo" mouse pointer image */ 2384 if (scp->sc->flags & SC_MOUSE_ENABLED) { 2385 if (!(scp->status & (MOUSE_VISIBLE | MOUSE_HIDDEN))) { 2386 scp->status &= ~MOUSE_MOVED; 2387 sc_draw_mouse_image(scp); 2388 } 2389 } 2390 #endif /* SC_NO_CUTPASTE */ 2391 2392 /* 2393 * Cleanup 2394 */ 2395 cleanup: 2396 atomic_add_int(&scp->sc->videoio_in_progress, -1); 2397 if (flags & SCRN_BULKUNLOCK) 2398 syscons_unlock(); 2399 } 2400 2401 /* 2402 * Thread handles potentially expensive screen updates. The function is 2403 * expected to operate safely without locks. 2404 */ 2405 static void 2406 scrn_update_thread(void *arg) 2407 { 2408 scr_stat *scp = arg; 2409 for (;;) { 2410 if (scp->queue_update_td == 0) { 2411 tsleep_interlock(&scp->asynctd, 0); 2412 if (scp->queue_update_td == 0) 2413 tsleep(&scp->asynctd, PINTERLOCKED, "wait", 0); 2414 } 2415 scp->queue_update_td = 0; 2416 lockmgr(&sc_asynctd_lk, LK_EXCLUSIVE); 2417 atomic_add_int(&scp->sc->videoio_in_progress, 1); 2418 scrn_update(scp, scp->show_cursor, SCRN_BULKUNLOCK); 2419 atomic_add_int(&scp->sc->videoio_in_progress, -1); 2420 lockmgr(&sc_asynctd_lk, LK_RELEASE); 2421 } 2422 } 2423 2424 static void 2425 sc_fb_set_par(void *context, int pending) 2426 { 2427 sc_softc_t *sc = context; 2428 2429 lwkt_gettoken(&vga_token); 2430 if (sc->fbi != NULL && sc->fbi->fbops.fb_set_par != NULL) 2431 sc->fbi->fbops.fb_set_par(sc->fbi); 2432 lwkt_reltoken(&vga_token); 2433 } 2434 2435 #if NSPLASH > 0 2436 static void 2437 sc_fb_blank(void *context, int pending) 2438 { 2439 sc_softc_t *sc = context; 2440 2441 lwkt_gettoken(&vga_token); 2442 if (sc->fbi != NULL && sc->fbi->fbops.fb_blank != NULL) { 2443 /* 0 == FB_BLANK_UNBLANK and 4 == FB_BLANK_POWERDOWN */ 2444 if (sc->flags & SC_SCRN_BLANKED) { 2445 sc->fbi->fbops.fb_blank(4, sc->fbi); 2446 sc->fb_blanked = TRUE; 2447 if (sc->unit == sc_console_unit) 2448 cons_unavail = TRUE; 2449 } else { 2450 sc->fbi->fbops.fb_blank(0, sc->fbi); 2451 sc->fb_blanked = FALSE; 2452 if (sc->unit == sc_console_unit && 2453 sc->cur_scp->smode.mode == VT_AUTO) 2454 cons_unavail = FALSE; 2455 } 2456 } 2457 lwkt_reltoken(&vga_token); 2458 } 2459 2460 static void 2461 scframebuffer_saver(sc_softc_t *sc, int show) 2462 { 2463 scr_stat *scp = sc->cur_scp; 2464 2465 if (panicstr) 2466 return; 2467 2468 /* 2469 * Gets called on every screen update while screensaver is active, 2470 * so we need to check the SC_SCRN_BLANKED flag ourselves. 2471 */ 2472 if ((sc->flags & SC_SCRN_BLANKED) && show) 2473 return; 2474 2475 taskqueue_cancel(taskqueue_thread[0], sc->fb_blank_task, NULL); 2476 crit_enter(); 2477 if (show) { 2478 scp->status |= SAVER_RUNNING; 2479 sc->flags |= SC_SCRN_BLANKED; 2480 ++scrn_blanked; 2481 } else { 2482 scp->status &= ~SAVER_RUNNING; 2483 sc->flags &= ~SC_SCRN_BLANKED; 2484 --scrn_blanked; 2485 } 2486 crit_exit(); 2487 taskqueue_enqueue(taskqueue_thread[0], sc->fb_blank_task); 2488 } 2489 2490 static int 2491 scsplash_callback(int event, void *arg) 2492 { 2493 sc_softc_t *sc; 2494 int error; 2495 2496 sc = (sc_softc_t *)arg; 2497 2498 switch (event) { 2499 case SPLASH_INIT: 2500 if (add_scrn_saver(scsplash_saver) == 0) { 2501 sc->flags &= ~SC_SAVER_FAILED; 2502 run_scrn_saver = TRUE; 2503 if (cold) { 2504 scsplash_stick(TRUE); 2505 (*current_saver)(sc, TRUE); 2506 } 2507 } 2508 return 0; 2509 2510 case SPLASH_TERM: 2511 if (current_saver == scsplash_saver) { 2512 scsplash_stick(FALSE); 2513 error = remove_scrn_saver(scsplash_saver); 2514 if (error) { 2515 return error; 2516 } 2517 } 2518 return 0; 2519 2520 default: 2521 return EINVAL; 2522 } 2523 } 2524 2525 static void 2526 scsplash_saver(sc_softc_t *sc, int show) 2527 { 2528 static int busy = FALSE; 2529 scr_stat *scp; 2530 2531 if (busy) 2532 return; 2533 busy = TRUE; 2534 2535 scp = sc->cur_scp; 2536 if (show) { 2537 if (!(sc->flags & SC_SAVER_FAILED)) { 2538 if (!(sc->flags & SC_SCRN_BLANKED)) 2539 set_scrn_saver_mode(scp, -1, NULL, 0); 2540 switch (splash(sc->adp, TRUE)) { 2541 case 0: /* succeeded */ 2542 break; 2543 case EAGAIN: /* try later */ 2544 restore_scrn_saver_mode(scp, FALSE); 2545 sc_touch_scrn_saver(); /* XXX */ 2546 break; 2547 default: 2548 sc->flags |= SC_SAVER_FAILED; 2549 scsplash_stick(FALSE); 2550 restore_scrn_saver_mode(scp, TRUE); 2551 kprintf("scsplash_saver(): failed to put up the image\n"); 2552 break; 2553 } 2554 } 2555 } else if (!sticky_splash) { 2556 if ((sc->flags & SC_SCRN_BLANKED) && (splash(sc->adp, FALSE) == 0)) 2557 restore_scrn_saver_mode(scp, TRUE); 2558 } 2559 busy = FALSE; 2560 } 2561 2562 static int 2563 add_scrn_saver(void (*this_saver)(sc_softc_t *, int)) 2564 { 2565 #if 0 2566 int error; 2567 2568 if (current_saver != none_saver) { 2569 error = remove_scrn_saver(current_saver); 2570 if (error) 2571 return error; 2572 } 2573 #endif 2574 if (current_saver != none_saver) { 2575 return EBUSY; 2576 } 2577 2578 run_scrn_saver = FALSE; 2579 saver_mode = CONS_LKM_SAVER; 2580 current_saver = this_saver; 2581 return 0; 2582 } 2583 2584 static int 2585 remove_scrn_saver(void (*this_saver)(sc_softc_t *, int)) 2586 { 2587 if (current_saver != this_saver) 2588 return EINVAL; 2589 2590 #if 0 2591 /* 2592 * In order to prevent `current_saver' from being called by 2593 * the timeout routine `scrn_timer()' while we manipulate 2594 * the saver list, we shall set `current_saver' to `none_saver' 2595 * before stopping the current saver, rather than blocking by `splXX()'. 2596 */ 2597 current_saver = none_saver; 2598 if (scrn_blanked) 2599 stop_scrn_saver(this_saver); 2600 #endif 2601 /* unblank all blanked screens */ 2602 wait_scrn_saver_stop(NULL, FALSE); 2603 if (scrn_blanked) { 2604 return EBUSY; 2605 } 2606 2607 current_saver = none_saver; 2608 return 0; 2609 } 2610 2611 static int 2612 set_scrn_saver_mode(scr_stat *scp, int mode, u_char *pal, int border) 2613 { 2614 2615 /* assert(scp == scp->sc->cur_scp) */ 2616 crit_enter(); 2617 if (!ISGRAPHSC(scp)) 2618 sc_remove_cursor_image(scp); 2619 scp->splash_save_mode = scp->mode; 2620 scp->splash_save_status = scp->status & (GRAPHICS_MODE | PIXEL_MODE); 2621 scp->status &= ~(GRAPHICS_MODE | PIXEL_MODE); 2622 scp->status |= (UNKNOWN_MODE | SAVER_RUNNING); 2623 scp->sc->flags |= SC_SCRN_BLANKED; 2624 ++scrn_blanked; 2625 crit_exit(); 2626 if (mode < 0) { 2627 return 0; 2628 } 2629 scp->mode = mode; 2630 if (set_mode(scp) == 0) { 2631 if (scp->sc->fbi == NULL && 2632 scp->sc->adp->va_info.vi_flags & V_INFO_GRAPHICS) { 2633 scp->status |= GRAPHICS_MODE; 2634 } 2635 if (scp->sc->fbi == NULL && pal != NULL) 2636 load_palette(scp->sc->adp, pal); 2637 sc_set_border(scp, border); 2638 return 0; 2639 } else { 2640 crit_enter(); 2641 scp->mode = scp->splash_save_mode; 2642 scp->status &= ~(UNKNOWN_MODE | SAVER_RUNNING); 2643 scp->status |= scp->splash_save_status; 2644 crit_exit(); 2645 return 1; 2646 } 2647 /* NOTREACHED */ 2648 } 2649 2650 static int 2651 restore_scrn_saver_mode(scr_stat *scp, int changemode) 2652 { 2653 int mode; 2654 int status; 2655 2656 /* assert(scp == scp->sc->cur_scp) */ 2657 crit_enter(); 2658 mode = scp->mode; 2659 status = scp->status; 2660 scp->mode = scp->splash_save_mode; 2661 scp->status &= ~(UNKNOWN_MODE | SAVER_RUNNING); 2662 scp->status |= scp->splash_save_status; 2663 scp->sc->flags &= ~SC_SCRN_BLANKED; 2664 if (!changemode) { 2665 if (!ISGRAPHSC(scp)) 2666 sc_draw_cursor_image(scp); 2667 --scrn_blanked; 2668 crit_exit(); 2669 return 0; 2670 } 2671 if (set_mode(scp) == 0) { 2672 if (scp->sc->fbi == NULL) 2673 load_palette(scp->sc->adp, scp->sc->palette); 2674 --scrn_blanked; 2675 crit_exit(); 2676 return 0; 2677 } else { 2678 scp->mode = mode; 2679 scp->status = status; 2680 crit_exit(); 2681 return 1; 2682 } 2683 /* NOTREACHED */ 2684 } 2685 2686 static void 2687 stop_scrn_saver(sc_softc_t *sc, void (*saver)(sc_softc_t *, int)) 2688 { 2689 (*saver)(sc, FALSE); 2690 run_scrn_saver = FALSE; 2691 /* the screen saver may have chosen not to stop after all... */ 2692 if (sc->flags & SC_SCRN_BLANKED) { 2693 return; 2694 } 2695 2696 mark_all(sc->cur_scp); 2697 if (sc->delayed_next_scr) 2698 sc_switch_scr(sc, sc->delayed_next_scr - 1); 2699 wakeup(&scrn_blanked); 2700 } 2701 2702 static int 2703 wait_scrn_saver_stop(sc_softc_t *sc, int need_unlock) 2704 { 2705 int error = 0; 2706 2707 while (scrn_blanked > 0) { 2708 run_scrn_saver = FALSE; 2709 if (sc && !(sc->flags & SC_SCRN_BLANKED)) { 2710 error = 0; 2711 break; 2712 } 2713 if (need_unlock) { 2714 tsleep_interlock(&scrn_blanked, PCATCH); 2715 syscons_unlock(); 2716 error = tsleep(&scrn_blanked, PCATCH | PINTERLOCKED, "scrsav", 0); 2717 syscons_lock(); 2718 } else { 2719 error = tsleep(&scrn_blanked, PCATCH, "scrsav", 0); 2720 } 2721 /* May return ERESTART */ 2722 if (error) 2723 break; 2724 } 2725 run_scrn_saver = FALSE; 2726 return error; 2727 } 2728 #endif /* NSPLASH */ 2729 2730 void 2731 sc_start_scrn_saver(sc_softc_t *sc) 2732 { 2733 #if NSPLASH > 0 2734 (*current_saver)(sc, TRUE); 2735 #endif 2736 } 2737 2738 void 2739 sc_stop_scrn_saver(sc_softc_t *sc) 2740 { 2741 #if NSPLASH > 0 2742 if (sc->flags & SC_SCRN_BLANKED) 2743 stop_scrn_saver(sc, current_saver); 2744 #endif 2745 } 2746 2747 void 2748 sc_touch_scrn_saver(void) 2749 { 2750 scsplash_stick(FALSE); 2751 run_scrn_saver = FALSE; 2752 } 2753 2754 int 2755 sc_switch_scr(sc_softc_t *sc, u_int next_scr) 2756 { 2757 scr_stat *cur_scp; 2758 struct tty *tp; 2759 2760 DPRINTF(5, ("sc0: sc_switch_scr() %d ", next_scr + 1)); 2761 2762 /* prevent switch if previously requested */ 2763 if (sc->flags & SC_SCRN_VTYLOCK) { 2764 sc_bell(sc->cur_scp, sc->cur_scp->bell_pitch, 2765 sc->cur_scp->bell_duration); 2766 return EPERM; 2767 } 2768 2769 /* delay switch if the screen is blanked or being updated */ 2770 if ((sc->flags & SC_SCRN_BLANKED) || sc->write_in_progress 2771 || sc->blink_in_progress || sc->videoio_in_progress) { 2772 sc->delayed_next_scr = next_scr + 1; 2773 sc_touch_scrn_saver(); 2774 DPRINTF(5, ("switch delayed\n")); 2775 return 0; 2776 } 2777 2778 cur_scp = sc->cur_scp; 2779 2780 /* 2781 * we are in the middle of the vty switching process... 2782 * 2783 * This may be in the console path, be very careful. pfindn() is 2784 * still going to use a spinlock but it no longer uses tokens so 2785 * we should be ok. 2786 */ 2787 if (sc->switch_in_progress && 2788 (cur_scp->smode.mode == VT_PROCESS) && 2789 cur_scp->proc) { 2790 if (cur_scp->proc != pfindn(cur_scp->pid)) { 2791 /* 2792 * The controlling process has died!!. Do some clean up. 2793 * NOTE:`cur_scp->proc' and `cur_scp->smode.mode' 2794 * are not reset here yet; they will be cleared later. 2795 */ 2796 DPRINTF(5, ("cur_scp controlling process %d died, ", cur_scp->pid)); 2797 if (cur_scp->status & SWITCH_WAIT_REL) { 2798 /* 2799 * Force the previous switch to finish, but return now 2800 * with error. 2801 * 2802 */ 2803 DPRINTF(5, ("reset WAIT_REL, ")); 2804 finish_vt_rel(cur_scp, TRUE); 2805 DPRINTF(5, ("finishing previous switch\n")); 2806 return EINVAL; 2807 } else if (cur_scp->status & SWITCH_WAIT_ACQ) { 2808 /* let's assume screen switch has been completed. */ 2809 DPRINTF(5, ("reset WAIT_ACQ, ")); 2810 finish_vt_acq(cur_scp); 2811 } else { 2812 /* 2813 * We are in between screen release and acquisition, and 2814 * reached here via scgetc() or scrn_timer() which has 2815 * interrupted exchange_scr(). Don't do anything stupid. 2816 */ 2817 DPRINTF(5, ("waiting nothing, ")); 2818 } 2819 } else { 2820 /* 2821 * The controlling process is alive, but not responding... 2822 * It is either buggy or it may be just taking time. 2823 * The following code is a gross kludge to cope with this 2824 * problem for which there is no clean solution. XXX 2825 */ 2826 if (cur_scp->status & SWITCH_WAIT_REL) { 2827 switch (sc->switch_in_progress++) { 2828 case 1: 2829 break; 2830 case 2: 2831 DPRINTF(5, ("sending relsig again, ")); 2832 signal_vt_rel(cur_scp); 2833 break; 2834 case 3: 2835 break; 2836 case 4: 2837 default: 2838 /* 2839 * Act as if the controlling program returned 2840 * VT_FALSE. 2841 * 2842 */ 2843 DPRINTF(5, ("force reset WAIT_REL, ")); 2844 finish_vt_rel(cur_scp, FALSE); 2845 DPRINTF(5, ("act as if VT_FALSE was seen\n")); 2846 return EINVAL; 2847 } 2848 } else if (cur_scp->status & SWITCH_WAIT_ACQ) { 2849 switch (sc->switch_in_progress++) { 2850 case 1: 2851 break; 2852 case 2: 2853 DPRINTF(5, ("sending acqsig again, ")); 2854 signal_vt_acq(cur_scp); 2855 break; 2856 case 3: 2857 break; 2858 case 4: 2859 default: 2860 /* clear the flag and finish the previous switch */ 2861 DPRINTF(5, ("force reset WAIT_ACQ, ")); 2862 finish_vt_acq(cur_scp); 2863 break; 2864 } 2865 } 2866 } 2867 } 2868 2869 /* 2870 * Return error if an invalid argument is given, or vty switch 2871 * is still in progress. 2872 */ 2873 if ((next_scr < sc->first_vty) || (next_scr >= sc->first_vty + sc->vtys) 2874 || sc->switch_in_progress) { 2875 sc_bell(cur_scp, bios_value.bell_pitch, BELL_DURATION); 2876 DPRINTF(5, ("error 1\n")); 2877 return EINVAL; 2878 } 2879 2880 /* 2881 * Don't allow switching away from the graphics mode vty 2882 * if the switch mode is VT_AUTO, unless the next vty is the same 2883 * as the current or the current vty has been closed (but showing). 2884 */ 2885 tp = VIRTUAL_TTY(sc, cur_scp->index); 2886 if ((cur_scp->index != next_scr) 2887 && ISTTYOPEN(tp) 2888 && (cur_scp->smode.mode == VT_AUTO) 2889 && ISGRAPHSC(cur_scp)) { 2890 sc_bell(cur_scp, bios_value.bell_pitch, BELL_DURATION); 2891 DPRINTF(5, ("error, graphics mode\n")); 2892 return EINVAL; 2893 } 2894 2895 /* 2896 * Is the wanted vty open? Don't allow switching to a closed vty. 2897 * If we are in DDB, don't switch to a vty in the VT_PROCESS mode. 2898 * Note that we always allow the user to switch to the kernel 2899 * console even if it is closed. 2900 */ 2901 if ((sc_console == NULL) || (next_scr != sc_console->index)) { 2902 tp = VIRTUAL_TTY(sc, next_scr); 2903 if (!ISTTYOPEN(tp)) { 2904 sc_bell(cur_scp, bios_value.bell_pitch, BELL_DURATION); 2905 DPRINTF(5, ("error 2, requested vty isn't open!\n")); 2906 return EINVAL; 2907 } 2908 if ((debugger > 0) && (SC_STAT(tp->t_dev)->smode.mode == VT_PROCESS)) { 2909 DPRINTF(5, ("error 3, requested vty is in the VT_PROCESS mode\n")); 2910 return EINVAL; 2911 } 2912 } 2913 2914 /* this is the start of vty switching process... */ 2915 ++sc->switch_in_progress; 2916 sc->delayed_next_scr = 0; 2917 sc->old_scp = cur_scp; 2918 sc->new_scp = SC_STAT(SC_DEV(sc, next_scr)); 2919 if (sc->new_scp == sc->old_scp) { 2920 sc->switch_in_progress = 0; 2921 wakeup((caddr_t)&sc->new_scp->smode); 2922 DPRINTF(5, ("switch done (new == old)\n")); 2923 return 0; 2924 } 2925 2926 /* has controlling process died? */ 2927 vt_proc_alive(sc->old_scp); 2928 vt_proc_alive(sc->new_scp); 2929 2930 /* wait for the controlling process to release the screen, if necessary */ 2931 if (signal_vt_rel(sc->old_scp)) { 2932 return 0; 2933 } 2934 2935 /* go set up the new vty screen */ 2936 exchange_scr(sc); 2937 2938 /* wake up processes waiting for this vty */ 2939 wakeup((caddr_t)&sc->cur_scp->smode); 2940 2941 /* wait for the controlling process to acknowledge, if necessary */ 2942 if (signal_vt_acq(sc->cur_scp)) { 2943 return 0; 2944 } 2945 2946 sc->switch_in_progress = 0; 2947 if (sc->unit == sc_console_unit && !sc->fb_blanked) 2948 cons_unavail = FALSE; 2949 DPRINTF(5, ("switch done\n")); 2950 2951 return 0; 2952 } 2953 2954 static void 2955 do_switch_scr(sc_softc_t *sc) 2956 { 2957 lwkt_gettoken(&vga_token); 2958 vt_proc_alive(sc->new_scp); 2959 2960 exchange_scr(sc); 2961 /* sc->cur_scp == sc->new_scp */ 2962 wakeup((caddr_t)&sc->cur_scp->smode); 2963 2964 /* wait for the controlling process to acknowledge, if necessary */ 2965 if (!signal_vt_acq(sc->cur_scp)) { 2966 sc->switch_in_progress = 0; 2967 if (sc->unit == sc_console_unit && !sc->fb_blanked) 2968 cons_unavail = FALSE; 2969 } 2970 lwkt_reltoken(&vga_token); 2971 } 2972 2973 static int 2974 vt_proc_alive(scr_stat *scp) 2975 { 2976 lwkt_gettoken(&vga_token); 2977 if (scp->proc) { 2978 if (scp->proc == pfindn(scp->pid)) { 2979 lwkt_reltoken(&vga_token); 2980 return TRUE; 2981 } 2982 scp->proc = NULL; 2983 scp->smode.mode = VT_AUTO; 2984 DPRINTF(5, ("vt controlling process %d died\n", scp->pid)); 2985 } 2986 lwkt_reltoken(&vga_token); 2987 return FALSE; 2988 } 2989 2990 static int 2991 signal_vt_rel(scr_stat *scp) 2992 { 2993 struct proc *p; 2994 2995 lwkt_gettoken(&vga_token); 2996 if (scp->smode.mode != VT_PROCESS) { 2997 lwkt_reltoken(&vga_token); 2998 return FALSE; 2999 } 3000 scp->status |= SWITCH_WAIT_REL; 3001 p = scp->proc; 3002 PHOLD(p); 3003 ksignal(p, scp->smode.relsig); 3004 PRELE(p); 3005 DPRINTF(5, ("sending relsig to %d\n", scp->pid)); 3006 lwkt_reltoken(&vga_token); 3007 3008 return TRUE; 3009 } 3010 3011 static int 3012 signal_vt_acq(scr_stat *scp) 3013 { 3014 struct proc *p; 3015 3016 lwkt_gettoken(&vga_token); 3017 if (scp->smode.mode != VT_PROCESS) { 3018 lwkt_reltoken(&vga_token); 3019 return FALSE; 3020 } 3021 if (scp->sc->unit == sc_console_unit) 3022 cons_unavail = TRUE; 3023 scp->status |= SWITCH_WAIT_ACQ; 3024 p = scp->proc; 3025 PHOLD(p); 3026 ksignal(p, scp->smode.acqsig); 3027 PRELE(p); 3028 DPRINTF(5, ("sending acqsig to %d\n", scp->pid)); 3029 lwkt_reltoken(&vga_token); 3030 3031 return TRUE; 3032 } 3033 3034 static int 3035 finish_vt_rel(scr_stat *scp, int release) 3036 { 3037 lwkt_gettoken(&vga_token); 3038 if (scp == scp->sc->old_scp && scp->status & SWITCH_WAIT_REL) { 3039 scp->status &= ~SWITCH_WAIT_REL; 3040 if (release) 3041 do_switch_scr(scp->sc); 3042 else 3043 scp->sc->switch_in_progress = 0; 3044 lwkt_reltoken(&vga_token); 3045 return 0; 3046 } 3047 lwkt_reltoken(&vga_token); 3048 return EINVAL; 3049 } 3050 3051 static int 3052 finish_vt_acq(scr_stat *scp) 3053 { 3054 lwkt_gettoken(&vga_token); 3055 if (scp == scp->sc->new_scp && scp->status & SWITCH_WAIT_ACQ) { 3056 scp->status &= ~SWITCH_WAIT_ACQ; 3057 scp->sc->switch_in_progress = 0; 3058 lwkt_reltoken(&vga_token); 3059 return 0; 3060 } 3061 lwkt_reltoken(&vga_token); 3062 return EINVAL; 3063 } 3064 3065 static void 3066 exchange_scr(sc_softc_t *sc) 3067 { 3068 scr_stat *scp; 3069 3070 lwkt_gettoken(&vga_token); 3071 /* save the current state of video and keyboard */ 3072 sc_move_cursor(sc->old_scp, sc->old_scp->xpos, sc->old_scp->ypos); 3073 if (!ISGRAPHSC(sc->old_scp)) 3074 sc_remove_cursor_image(sc->old_scp); 3075 if (sc->old_scp->kbd_mode == K_XLATE) 3076 save_kbd_state(sc->old_scp, TRUE); 3077 3078 /* set up the video for the new screen */ 3079 scp = sc->cur_scp = sc->new_scp; 3080 if (sc->old_scp->mode != scp->mode || ISUNKNOWNSC(sc->old_scp)) 3081 set_mode(scp); 3082 else if (sc->adp != NULL) 3083 sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, scp->xsize, scp->ysize, 3084 (void *)sc->adp->va_window, FALSE); 3085 scp->status |= MOUSE_HIDDEN; 3086 sc_update_render(scp); /* Switch to kms renderer if necessary */ 3087 sc_move_cursor(scp, scp->xpos, scp->ypos); 3088 if (!ISGRAPHSC(scp)) 3089 sc_set_cursor_image(scp); 3090 if (sc->fbi == NULL && ISGRAPHSC(sc->old_scp)) 3091 load_palette(sc->adp, sc->palette); 3092 if (!ISGRAPHSC(scp) || sc->fbi == NULL) 3093 sc_set_border(scp, scp->border); 3094 3095 /* set up the keyboard for the new screen */ 3096 if (sc->old_scp->kbd_mode != scp->kbd_mode) 3097 kbd_ioctl(sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode); 3098 update_kbd_state(scp, scp->status, LOCK_MASK, TRUE); 3099 3100 mark_all(scp); 3101 3102 /* 3103 * Restore DRM framebuffer console mode if necessary. 3104 * Especially avoid modesetting when switching to a vt which is in 3105 * graphics mode, because the fb_set_par() from the taskqueue thread 3106 * might race with the modesetting ioctl from the userland application. 3107 */ 3108 if (!ISTEXTSC(sc->old_scp) && 3109 sc->fbi != NULL && sc->fbi->fbops.fb_set_par != NULL && 3110 sc->fb_set_par_task != NULL) { 3111 taskqueue_enqueue(taskqueue_thread[0], sc->fb_set_par_task); 3112 } 3113 3114 lwkt_reltoken(&vga_token); 3115 } 3116 3117 static void 3118 sc_puts(scr_stat *scp, u_char *buf, int len) 3119 { 3120 #if NSPLASH > 0 3121 /* make screensaver happy */ 3122 if (!sticky_splash && scp == scp->sc->cur_scp) 3123 run_scrn_saver = FALSE; 3124 #endif 3125 3126 if (scp->tsw) 3127 (*scp->tsw->te_puts)(scp, buf, len); 3128 3129 if (scp->sc->delayed_next_scr) 3130 sc_switch_scr(scp->sc, scp->sc->delayed_next_scr - 1); 3131 3132 } 3133 3134 void 3135 sc_draw_cursor_image(scr_stat *scp) 3136 { 3137 /* assert(scp == scp->sc->cur_scp); */ 3138 atomic_add_int(&scp->sc->videoio_in_progress, 1); 3139 (*scp->rndr->draw_cursor)(scp, scp->cursor_pos, 3140 scp->sc->flags & SC_BLINK_CURSOR, TRUE, 3141 sc_inside_cutmark(scp, scp->cursor_pos)); 3142 scp->cursor_oldpos = scp->cursor_pos; 3143 atomic_add_int(&scp->sc->videoio_in_progress, -1); 3144 } 3145 3146 void 3147 sc_remove_cursor_image(scr_stat *scp) 3148 { 3149 /* assert(scp == scp->sc->cur_scp); */ 3150 atomic_add_int(&scp->sc->videoio_in_progress, 1); 3151 (*scp->rndr->draw_cursor)(scp, scp->cursor_oldpos, 3152 scp->sc->flags & SC_BLINK_CURSOR, FALSE, 3153 sc_inside_cutmark(scp, scp->cursor_oldpos)); 3154 atomic_add_int(&scp->sc->videoio_in_progress, -1); 3155 } 3156 3157 static void 3158 update_cursor_image(scr_stat *scp) 3159 { 3160 int blink; 3161 3162 if (scp->sc->flags & SC_CHAR_CURSOR) { 3163 scp->cursor_base = imax(0, scp->sc->cursor_base); 3164 scp->cursor_height = imin(scp->sc->cursor_height, scp->font_height); 3165 } else { 3166 scp->cursor_base = 0; 3167 scp->cursor_height = scp->font_height; 3168 } 3169 blink = scp->sc->flags & SC_BLINK_CURSOR; 3170 3171 /* assert(scp == scp->sc->cur_scp); */ 3172 atomic_add_int(&scp->sc->videoio_in_progress, 1); 3173 (*scp->rndr->draw_cursor)(scp, scp->cursor_oldpos, blink, FALSE, 3174 sc_inside_cutmark(scp, scp->cursor_pos)); 3175 (*scp->rndr->set_cursor)(scp, scp->cursor_base, scp->cursor_height, blink); 3176 (*scp->rndr->draw_cursor)(scp, scp->cursor_pos, blink, TRUE, 3177 sc_inside_cutmark(scp, scp->cursor_pos)); 3178 atomic_add_int(&scp->sc->videoio_in_progress, -1); 3179 } 3180 3181 void 3182 sc_set_cursor_image(scr_stat *scp) 3183 { 3184 if (scp->sc->flags & SC_CHAR_CURSOR) { 3185 scp->cursor_base = imax(0, scp->sc->cursor_base); 3186 scp->cursor_height = imin(scp->sc->cursor_height, scp->font_height); 3187 } else { 3188 scp->cursor_base = 0; 3189 scp->cursor_height = scp->font_height; 3190 } 3191 3192 /* assert(scp == scp->sc->cur_scp); */ 3193 atomic_add_int(&scp->sc->videoio_in_progress, 1); 3194 (*scp->rndr->set_cursor)(scp, scp->cursor_base, scp->cursor_height, 3195 scp->sc->flags & SC_BLINK_CURSOR); 3196 atomic_add_int(&scp->sc->videoio_in_progress, -1); 3197 } 3198 3199 static void 3200 scinit(int unit, int flags) 3201 { 3202 /* 3203 * When syscons is being initialized as the kernel console, malloc() 3204 * is not yet functional, because various kernel structures has not been 3205 * fully initialized yet. Therefore, we need to declare the following 3206 * static buffers for the console. This is less than ideal, 3207 * but is necessry evil for the time being. XXX 3208 */ 3209 static scr_stat main_console; 3210 static u_short sc_buffer[2*ROW*2*COL]; /* XXX */ 3211 #ifndef SC_NO_FONT_LOADING 3212 static u_char font_8[256*8]; 3213 static u_char font_14[256*14]; 3214 static u_char font_16[256*16]; 3215 #endif 3216 3217 sc_softc_t *sc; 3218 scr_stat *scp; 3219 video_adapter_t *adp; 3220 char tbuf[MAKEDEV_MINNBUF]; 3221 int col; 3222 int row; 3223 int i; 3224 3225 /* one time initialization */ 3226 if (init_done == COLD) 3227 sc_get_bios_values(&bios_value); 3228 init_done = WARM; 3229 3230 /* 3231 * Allocate resources. Even if we are being called for the second 3232 * time, we must allocate them again, because they might have 3233 * disappeared... 3234 */ 3235 sc = sc_get_softc(unit, flags & SC_KERNEL_CONSOLE); 3236 adp = NULL; 3237 if (flags & SC_EFI_FB) { 3238 /* Don't replace already registered drm framebuffer here */ 3239 if (sc->fbi == NULL) { 3240 sc->fbi = &efi_fb_info; 3241 sc->fbi_generation++; 3242 } 3243 } else if (sc->adapter >= 0) { 3244 vid_release(sc->adp, (void *)&sc->adapter); 3245 adp = sc->adp; 3246 } 3247 sc->adp = NULL; 3248 if (sc->keyboard >= 0) { 3249 DPRINTF(5, ("sc%d: releasing kbd%d\n", unit, sc->keyboard)); 3250 i = kbd_release(sc->kbd, (void *)&sc->keyboard); 3251 DPRINTF(5, ("sc%d: kbd_release returned %d\n", unit, i)); 3252 if (sc->kbd != NULL) { 3253 DPRINTF(5, ("sc%d: kbd != NULL!, index:%d, unit:%d, flags:0x%x\n", 3254 unit, sc->kbd->kb_index, sc->kbd->kb_unit, sc->kbd->kb_flags)); 3255 } 3256 sc->kbd = NULL; 3257 } 3258 if (!(flags & SC_EFI_FB)) { 3259 sc->adapter = vid_allocate("*", unit, (void *)&sc->adapter); 3260 sc->adp = vid_get_adapter(sc->adapter); 3261 /* assert((sc->adapter >= 0) && (sc->adp != NULL)) */ 3262 } 3263 sc->keyboard = sc_allocate_keyboard(sc, unit); 3264 DPRINTF(1, ("sc%d: keyboard %d\n", unit, sc->keyboard)); 3265 sc->kbd = kbd_get_keyboard(sc->keyboard); 3266 if (sc->kbd != NULL) { 3267 DPRINTF(1, ("sc%d: kbd index:%d, unit:%d, flags:0x%x\n", 3268 unit, sc->kbd->kb_index, sc->kbd->kb_unit, sc->kbd->kb_flags)); 3269 } 3270 3271 if (!(sc->flags & SC_INIT_DONE) || (adp != sc->adp)) { 3272 3273 if (sc->fbi != NULL) 3274 sc->initial_mode = 0; 3275 else 3276 sc->initial_mode = sc->adp->va_initial_mode; 3277 3278 #ifndef SC_NO_FONT_LOADING 3279 if (flags & SC_KERNEL_CONSOLE) { 3280 sc->font_8 = font_8; 3281 sc->font_14 = font_14; 3282 sc->font_16 = font_16; 3283 } else if (sc->font_8 == NULL) { 3284 /* assert(sc_malloc) */ 3285 sc->font_8 = kmalloc(sizeof(font_8), M_SYSCONS, M_WAITOK); 3286 sc->font_14 = kmalloc(sizeof(font_14), M_SYSCONS, M_WAITOK); 3287 sc->font_16 = kmalloc(sizeof(font_16), M_SYSCONS, M_WAITOK); 3288 } 3289 #endif 3290 3291 if (sc->fbi != NULL) { 3292 col = 0; 3293 row = 0; 3294 } else { 3295 lwkt_gettoken(&vga_token); 3296 /* extract the hw cursor location and hide the cursor for now */ 3297 (*vidsw[sc->adapter]->read_hw_cursor)(sc->adp, &col, &row); 3298 (*vidsw[sc->adapter]->set_hw_cursor)(sc->adp, -1, -1); 3299 lwkt_reltoken(&vga_token); 3300 } 3301 3302 /* set up the first console */ 3303 sc->first_vty = unit*MAXCONS; 3304 sc->vtys = MAXCONS; /* XXX: should be configurable */ 3305 if (flags & SC_KERNEL_CONSOLE) { 3306 scp = &main_console; 3307 sc->console_scp = scp; 3308 init_scp(sc, sc->first_vty, scp); 3309 sc_vtb_init(&scp->vtb, VTB_MEMORY, scp->xsize, scp->ysize, 3310 (void *)sc_buffer, FALSE); 3311 if (sc_init_emulator(scp, SC_DFLT_TERM)) 3312 sc_init_emulator(scp, "*"); 3313 (*scp->tsw->te_default_attr)(scp, 3314 kernel_default.std_color, 3315 kernel_default.rev_color); 3316 } else { 3317 /* assert(sc_malloc) */ 3318 sc->dev = kmalloc(sizeof(cdev_t)*sc->vtys, M_SYSCONS, M_WAITOK | M_ZERO); 3319 3320 sc->dev[0] = make_dev(&sc_ops, unit*MAXCONS, UID_ROOT, 3321 GID_WHEEL, 0600, "ttyv%s", 3322 makedev_unit_b32(tbuf, unit * MAXCONS)); 3323 3324 ttymalloc(&sc->dev[0]->si_tty); 3325 scp = alloc_scp(sc, sc->first_vty); 3326 sc->dev[0]->si_drv1 = scp; 3327 } 3328 sc->cur_scp = scp; 3329 3330 /* copy screen to temporary buffer */ 3331 if (scp->sc->fbi == NULL) { 3332 sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, scp->xsize, scp->ysize, 3333 (void *)scp->sc->adp->va_window, FALSE); 3334 if (ISTEXTSC(scp)) 3335 sc_vtb_copy(&scp->scr, 0, &scp->vtb, 0, scp->xsize*scp->ysize); 3336 } 3337 3338 /* move cursors to the initial positions */ 3339 if (col >= scp->xsize) 3340 col = 0; 3341 if (row >= scp->ysize) 3342 row = scp->ysize - 1; 3343 scp->xpos = col; 3344 scp->ypos = row; 3345 if (sc->fbi != NULL) { 3346 scp->cursor_pos = 0; 3347 sc->cursor_base = 0; 3348 sc->cursor_height = scp->font_height; 3349 } else { 3350 scp->cursor_pos = scp->cursor_oldpos = row*scp->xsize + col; 3351 if (bios_value.cursor_end < scp->font_height) 3352 sc->cursor_base = scp->font_height - bios_value.cursor_end - 1; 3353 else 3354 sc->cursor_base = 0; 3355 i = bios_value.cursor_end - bios_value.cursor_start + 1; 3356 sc->cursor_height = imin(i, scp->font_height); 3357 } 3358 #ifndef SC_NO_SYSMOUSE 3359 sc_mouse_move(scp, scp->xpixel/2, scp->ypixel/2); 3360 #endif 3361 if (!ISGRAPHSC(scp)) { 3362 sc_set_cursor_image(scp); 3363 sc_draw_cursor_image(scp); 3364 /* If framebuffer vaddr is still 0, we can't draw the border yet */ 3365 if (scp->sc->fbi != NULL && scp->sc->fbi->vaddr != 0) { 3366 sc_filled_border = TRUE; 3367 sc_set_border(scp, scp->border); 3368 } 3369 } 3370 3371 /* save font and palette */ 3372 #ifndef SC_NO_FONT_LOADING 3373 sc->fonts_loaded = 0; 3374 #ifdef SC_DFLT_FONT 3375 bcopy(dflt_font_8, sc->font_8, sizeof(dflt_font_8)); 3376 bcopy(dflt_font_14, sc->font_14, sizeof(dflt_font_14)); 3377 bcopy(dflt_font_16, sc->font_16, sizeof(dflt_font_16)); 3378 sc->fonts_loaded = FONT_16 | FONT_14 | FONT_8; 3379 #endif /* SC_DFLT_FONT */ 3380 if (sc->adp != NULL && ISFONTAVAIL(sc->adp->va_flags)) { 3381 #ifdef SC_DFLT_FONT 3382 if (scp->font_height < 14) { 3383 sc_load_font(scp, 0, 8, sc->font_8, 0, 256); 3384 } else if (scp->font_height >= 16) { 3385 sc_load_font(scp, 0, 16, sc->font_16, 0, 256); 3386 } else { 3387 sc_load_font(scp, 0, 14, sc->font_14, 0, 256); 3388 } 3389 #else /* !SC_DFLT_FONT */ 3390 if (scp->font_height < 14) { 3391 sc_save_font(scp, 0, 8, sc->font_8, 0, 256); 3392 sc->fonts_loaded = FONT_8; 3393 } else if (scp->font_height >= 16) { 3394 sc_save_font(scp, 0, 16, sc->font_16, 0, 256); 3395 sc->fonts_loaded = FONT_16; 3396 } else { 3397 sc_save_font(scp, 0, 14, sc->font_14, 0, 256); 3398 sc->fonts_loaded = FONT_14; 3399 } 3400 #endif /* SC_DFLT_FONT */ 3401 /* FONT KLUDGE: always use the font page #0. XXX */ 3402 sc_show_font(scp, 0); 3403 } 3404 #endif /* !SC_NO_FONT_LOADING */ 3405 3406 if (!(flags & SC_EFI_FB)) 3407 save_palette(sc->adp, sc->palette); 3408 3409 #if NSPLASH > 0 3410 if (!(sc->flags & SC_SPLASH_SCRN) && (flags & SC_KERNEL_CONSOLE)) { 3411 /* we are ready to put up the splash image! */ 3412 splash_init(sc->adp, scsplash_callback, sc); 3413 sc->flags |= SC_SPLASH_SCRN; 3414 } 3415 #endif /* NSPLASH */ 3416 } 3417 3418 /* the rest is not necessary, if we have done it once */ 3419 if (sc->flags & SC_INIT_DONE) { 3420 return; 3421 } 3422 3423 /* initialize mapscrn arrays to a one to one map */ 3424 for (i = 0; i < sizeof(sc->scr_map); i++) 3425 sc->scr_map[i] = sc->scr_rmap[i] = i; 3426 3427 sc->flags |= SC_INIT_DONE; 3428 } 3429 3430 #if 0 3431 static void 3432 scterm(int unit, int flags) 3433 { 3434 sc_softc_t *sc; 3435 scr_stat *scp; 3436 3437 sc = sc_get_softc(unit, flags & SC_KERNEL_CONSOLE); 3438 if (sc == NULL) 3439 return; /* shouldn't happen */ 3440 3441 lwkt_gettoken(&vga_token); 3442 #if NSPLASH > 0 3443 /* this console is no longer available for the splash screen */ 3444 if (sc->flags & SC_SPLASH_SCRN) { 3445 splash_term(sc->adp); 3446 sc->flags &= ~SC_SPLASH_SCRN; 3447 } 3448 #endif /* NSPLASH */ 3449 3450 #if 0 /* XXX */ 3451 /* move the hardware cursor to the upper-left corner */ 3452 (*vidsw[sc->adapter]->set_hw_cursor)(sc->adp, 0, 0); 3453 #endif 3454 3455 /* release the keyboard and the video card */ 3456 if (sc->keyboard >= 0) 3457 kbd_release(sc->kbd, &sc->keyboard); 3458 if (sc->adapter >= 0) 3459 vid_release(sc->adp, &sc->adapter); 3460 3461 /* 3462 * Stop the terminal emulator, if any. If operating on the 3463 * kernel console sc->dev may not be setup yet. 3464 */ 3465 if (flags & SC_KERNEL_CONSOLE) 3466 scp = sc->console_scp; 3467 else 3468 scp = SC_STAT(sc->dev[0]); 3469 if (scp->tsw) 3470 (*scp->tsw->te_term)(scp, &scp->ts); 3471 if (scp->ts != NULL) 3472 kfree(scp->ts, M_SYSCONS); 3473 3474 /* clear the structure */ 3475 if (!(flags & SC_KERNEL_CONSOLE)) { 3476 /* XXX: We need delete_dev() for this */ 3477 kfree(sc->dev, M_SYSCONS); 3478 #if 0 3479 /* XXX: We need a ttyunregister for this */ 3480 /* XXX: do not race tty token access */ 3481 kfree(sc->tty, M_SYSCONS); 3482 #endif 3483 #ifndef SC_NO_FONT_LOADING 3484 kfree(sc->font_8, M_SYSCONS); 3485 kfree(sc->font_14, M_SYSCONS); 3486 kfree(sc->font_16, M_SYSCONS); 3487 #endif 3488 /* XXX vtb, history */ 3489 } 3490 bzero(sc, sizeof(*sc)); 3491 sc->keyboard = -1; 3492 sc->adapter = -1; 3493 lwkt_reltoken(&vga_token); 3494 } 3495 #endif 3496 3497 static void 3498 scshutdown(void *arg, int howto) 3499 { 3500 /* assert(sc_console != NULL) */ 3501 3502 lwkt_gettoken(&vga_token); 3503 syscons_lock(); 3504 sc_touch_scrn_saver(); 3505 if (!cold && sc_console 3506 && sc_console->sc->cur_scp->smode.mode == VT_AUTO 3507 && sc_console->smode.mode == VT_AUTO) { 3508 sc_switch_scr(sc_console->sc, sc_console->index); 3509 } 3510 shutdown_in_progress = TRUE; 3511 syscons_unlock(); 3512 lwkt_reltoken(&vga_token); 3513 } 3514 3515 int 3516 sc_clean_up(scr_stat *scp, int need_unlock) 3517 { 3518 #if NSPLASH > 0 3519 int error; 3520 #endif /* NSPLASH */ 3521 3522 lwkt_gettoken(&vga_token); 3523 if (scp->sc->flags & SC_SCRN_BLANKED) { 3524 sc_touch_scrn_saver(); 3525 #if NSPLASH > 0 3526 if ((error = wait_scrn_saver_stop(scp->sc, need_unlock))) { 3527 lwkt_reltoken(&vga_token); 3528 return error; 3529 } 3530 #endif /* NSPLASH */ 3531 } 3532 scp->status |= MOUSE_HIDDEN; 3533 sc_remove_mouse_image(scp); 3534 sc_remove_cutmarking(scp); 3535 lwkt_reltoken(&vga_token); 3536 return 0; 3537 } 3538 3539 void 3540 sc_alloc_scr_buffer(scr_stat *scp, int wait, int discard) 3541 { 3542 sc_vtb_t new; 3543 sc_vtb_t old; 3544 3545 lwkt_gettoken(&vga_token); 3546 old = scp->vtb; 3547 sc_vtb_init(&new, VTB_MEMORY, scp->xsize, scp->ysize, NULL, wait); 3548 if (!discard && (old.vtb_flags & VTB_VALID)) { 3549 /* retain the current cursor position and buffer contants */ 3550 scp->cursor_oldpos = scp->cursor_pos; 3551 /* 3552 * This works only if the old buffer has the same size as or larger 3553 * than the new one. XXX 3554 */ 3555 sc_vtb_copy(&old, 0, &new, 0, scp->xsize*scp->ysize); 3556 scp->vtb = new; 3557 } else { 3558 scp->vtb = new; 3559 sc_vtb_destroy(&old); 3560 } 3561 3562 #ifndef SC_NO_SYSMOUSE 3563 /* move the mouse cursor at the center of the screen */ 3564 sc_mouse_move(scp, scp->xpixel / 2, scp->ypixel / 2); 3565 #endif 3566 lwkt_reltoken(&vga_token); 3567 } 3568 3569 static scr_stat * 3570 alloc_scp(sc_softc_t *sc, int vty) 3571 { 3572 scr_stat *scp; 3573 3574 /* assert(sc_malloc) */ 3575 3576 scp = kmalloc(sizeof(scr_stat), M_SYSCONS, M_WAITOK); 3577 init_scp(sc, vty, scp); 3578 3579 sc_alloc_scr_buffer(scp, TRUE, TRUE); 3580 if (sc_init_emulator(scp, SC_DFLT_TERM)) 3581 sc_init_emulator(scp, "*"); 3582 3583 #ifndef SC_NO_CUTPASTE 3584 sc_alloc_cut_buffer(scp, TRUE); 3585 #endif 3586 3587 #ifndef SC_NO_HISTORY 3588 sc_alloc_history_buffer(scp, 0, 0, TRUE); 3589 #endif 3590 return scp; 3591 } 3592 3593 /* 3594 * NOTE: Must be called with vga_token held. 3595 */ 3596 static void 3597 init_scp(sc_softc_t *sc, int vty, scr_stat *scp) 3598 { 3599 video_info_t info; 3600 3601 bzero(scp, sizeof(*scp)); 3602 3603 scp->index = vty; 3604 scp->sc = sc; 3605 scp->status = 0; 3606 scp->mode = sc->initial_mode; 3607 scp->fbi_generation = sc->fbi_generation; 3608 callout_init_lk(&scp->blink_screen_ch, &syscons_blink_lk); 3609 if (scp->sc->fbi == NULL) { 3610 lwkt_gettoken(&vga_token); 3611 (*vidsw[sc->adapter]->get_info)(sc->adp, scp->mode, &info); 3612 lwkt_reltoken(&vga_token); 3613 } 3614 if (scp->sc->fbi != NULL) { 3615 scp->xpixel = sc->fbi->width; 3616 scp->ypixel = sc->fbi->height; 3617 scp->font_width = 8; 3618 scp->font_height = 16; 3619 3620 /* The first vty uses a statically allocated 160x50 buffer */ 3621 if (vty == sc->first_vty) 3622 sc_font_scale(scp, 2*COL, 2*ROW); 3623 else 3624 sc_font_scale(scp, 0, 0); 3625 3626 #ifndef SC_NO_FONT_LOADING 3627 scp->font = sc->font_16; 3628 #else 3629 scp->font = NULL; 3630 #endif 3631 } else if (info.vi_flags & V_INFO_GRAPHICS) { 3632 scp->status |= GRAPHICS_MODE; 3633 scp->xpixel = info.vi_width; 3634 scp->ypixel = info.vi_height; 3635 scp->xsize = info.vi_width/8; 3636 scp->ysize = info.vi_height/info.vi_cheight; 3637 scp->font_height = 0; 3638 scp->font_width = 0; 3639 scp->font = NULL; 3640 } else { 3641 scp->xsize = info.vi_width; 3642 scp->ysize = info.vi_height; 3643 scp->xpixel = scp->xsize*8; 3644 scp->ypixel = scp->ysize*info.vi_cheight; 3645 scp->font_width = 8; 3646 if (info.vi_cheight < 14) { 3647 scp->font_height = 8; 3648 #ifndef SC_NO_FONT_LOADING 3649 scp->font = sc->font_8; 3650 #else 3651 scp->font = NULL; 3652 #endif 3653 } else if (info.vi_cheight >= 16) { 3654 scp->font_height = 16; 3655 #ifndef SC_NO_FONT_LOADING 3656 scp->font = sc->font_16; 3657 #else 3658 scp->font = NULL; 3659 #endif 3660 } else { 3661 scp->font_height = 14; 3662 #ifndef SC_NO_FONT_LOADING 3663 scp->font = sc->font_14; 3664 #else 3665 scp->font = NULL; 3666 #endif 3667 } 3668 } 3669 scp->xoff = scp->yoff = 0; 3670 scp->xpos = scp->ypos = 0; 3671 sc_vtb_init(&scp->vtb, VTB_MEMORY, 0, 0, NULL, FALSE); 3672 sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, 0, 0, NULL, FALSE); 3673 scp->start = scp->xsize * scp->ysize - 1; 3674 scp->end = 0; 3675 scp->tsw = NULL; 3676 scp->ts = NULL; 3677 scp->rndr = NULL; 3678 scp->border = SC_BORDER_COLOR; 3679 scp->cursor_base = sc->cursor_base; 3680 scp->cursor_height = imin(sc->cursor_height, scp->font_height); 3681 scp->mouse_cut_start = scp->xsize * scp->ysize; 3682 scp->mouse_cut_end = -1; 3683 scp->mouse_signal = 0; 3684 scp->mouse_pid = 0; 3685 scp->mouse_proc = NULL; 3686 scp->kbd_mode = K_XLATE; 3687 scp->bell_pitch = bios_value.bell_pitch; 3688 scp->bell_duration = BELL_DURATION; 3689 scp->status |= (bios_value.shift_state & NLKED); 3690 scp->status |= CURSOR_ENABLED | MOUSE_HIDDEN; 3691 scp->pid = 0; 3692 scp->proc = NULL; 3693 scp->smode.mode = VT_AUTO; 3694 scp->history = NULL; 3695 scp->history_pos = 0; 3696 scp->history_size = 0; 3697 } 3698 3699 int 3700 sc_init_emulator(scr_stat *scp, char *name) 3701 { 3702 sc_term_sw_t *sw; 3703 sc_rndr_sw_t *rndr; 3704 void *p; 3705 int error; 3706 3707 if (name == NULL) /* if no name is given, use the current emulator */ 3708 sw = scp->tsw; 3709 else /* ...otherwise find the named emulator */ 3710 sw = sc_term_match(name); 3711 if (sw == NULL) { 3712 return EINVAL; 3713 } 3714 3715 rndr = NULL; 3716 if (strcmp(sw->te_renderer, "*") != 0) { 3717 rndr = sc_render_match(scp, sw->te_renderer, scp->model); 3718 } 3719 if (rndr == NULL && scp->sc->fbi != NULL) { 3720 rndr = sc_render_match(scp, "kms", scp->model); 3721 } 3722 if (rndr == NULL) { 3723 rndr = sc_render_match(scp, scp->sc->adp->va_name, scp->model); 3724 if (rndr == NULL) { 3725 return ENODEV; 3726 } 3727 } 3728 3729 if (sw == scp->tsw) { 3730 error = (*sw->te_init)(scp, &scp->ts, SC_TE_WARM_INIT); 3731 scp->rndr = rndr; 3732 sc_clear_screen(scp); 3733 /* assert(error == 0); */ 3734 return error; 3735 } 3736 3737 if (sc_malloc && (sw->te_size > 0)) 3738 p = kmalloc(sw->te_size, M_SYSCONS, M_NOWAIT); 3739 else 3740 p = NULL; 3741 error = (*sw->te_init)(scp, &p, SC_TE_COLD_INIT); 3742 if (error) { 3743 return error; 3744 } 3745 3746 if (scp->tsw) 3747 (*scp->tsw->te_term)(scp, &scp->ts); 3748 if (scp->ts != NULL) 3749 kfree(scp->ts, M_SYSCONS); 3750 scp->tsw = sw; 3751 scp->ts = p; 3752 scp->rndr = rndr; 3753 3754 /* XXX */ 3755 (*sw->te_default_attr)(scp, user_default.std_color, user_default.rev_color); 3756 sc_clear_screen(scp); 3757 3758 return 0; 3759 } 3760 3761 /* 3762 * scgetc(flags) - get character from keyboard. 3763 * If flags & SCGETC_CN, then avoid harmful side effects. 3764 * If flags & SCGETC_NONBLOCK, then wait until a key is pressed, else 3765 * return NOKEY if there is nothing there. 3766 */ 3767 static u_int 3768 scgetc(sc_softc_t *sc, u_int flags) 3769 { 3770 scr_stat *scp; 3771 #ifndef SC_NO_HISTORY 3772 struct tty *tp; 3773 #endif 3774 u_int c; 3775 int this_scr; 3776 int f; 3777 int i; 3778 3779 lwkt_gettoken(&vga_token); 3780 if (sc->kbd == NULL) { 3781 lwkt_reltoken(&vga_token); 3782 return NOKEY; 3783 } 3784 3785 next_code: 3786 #if 1 3787 /* I don't like this, but... XXX */ 3788 if (flags & SCGETC_CN) { 3789 syscons_lock(); 3790 sccnupdate(sc->cur_scp); 3791 syscons_unlock(); 3792 } 3793 #endif 3794 scp = sc->cur_scp; 3795 /* first see if there is something in the keyboard port */ 3796 for (;;) { 3797 c = kbd_read_char(sc->kbd, !(flags & SCGETC_NONBLOCK)); 3798 if (c == ERRKEY) { 3799 if (!(flags & SCGETC_CN)) 3800 sc_bell(scp, bios_value.bell_pitch, BELL_DURATION); 3801 } else if (c == NOKEY) { 3802 lwkt_reltoken(&vga_token); 3803 return c; 3804 } else { 3805 break; 3806 } 3807 } 3808 3809 /* make screensaver happy */ 3810 if (!(c & RELKEY)) 3811 sc_touch_scrn_saver(); 3812 3813 if (!(flags & SCGETC_CN)) 3814 /* do the /dev/random device a favour */ 3815 add_keyboard_randomness(c); 3816 3817 if (scp->kbd_mode != K_XLATE) { 3818 lwkt_reltoken(&vga_token); 3819 return KEYCHAR(c); 3820 } 3821 3822 /* if scroll-lock pressed allow history browsing */ 3823 if (!ISGRAPHSC(scp) && scp->history && scp->status & SLKED) { 3824 3825 scp->status &= ~CURSOR_ENABLED; 3826 sc_remove_cursor_image(scp); 3827 3828 #ifndef SC_NO_HISTORY 3829 if (!(scp->status & BUFFER_SAVED)) { 3830 scp->status |= BUFFER_SAVED; 3831 sc_hist_save(scp); 3832 } 3833 switch (c) { 3834 /* FIXME: key codes */ 3835 case SPCLKEY | FKEY | F(49): /* home key */ 3836 sc_remove_cutmarking(scp); 3837 sc_hist_home(scp); 3838 goto next_code; 3839 3840 case SPCLKEY | FKEY | F(57): /* end key */ 3841 sc_remove_cutmarking(scp); 3842 sc_hist_end(scp); 3843 goto next_code; 3844 3845 case SPCLKEY | FKEY | F(50): /* up arrow key */ 3846 sc_remove_cutmarking(scp); 3847 if (sc_hist_up_line(scp)) 3848 if (!(flags & SCGETC_CN)) 3849 sc_bell(scp, bios_value.bell_pitch, BELL_DURATION); 3850 goto next_code; 3851 3852 case SPCLKEY | FKEY | F(58): /* down arrow key */ 3853 sc_remove_cutmarking(scp); 3854 if (sc_hist_down_line(scp)) 3855 if (!(flags & SCGETC_CN)) 3856 sc_bell(scp, bios_value.bell_pitch, BELL_DURATION); 3857 goto next_code; 3858 3859 case SPCLKEY | FKEY | F(51): /* page up key */ 3860 sc_remove_cutmarking(scp); 3861 for (i=0; i<scp->ysize; i++) { 3862 if (sc_hist_up_line(scp)) { 3863 if (!(flags & SCGETC_CN)) 3864 sc_bell(scp, bios_value.bell_pitch, BELL_DURATION); 3865 break; 3866 } 3867 } 3868 goto next_code; 3869 3870 case SPCLKEY | FKEY | F(59): /* page down key */ 3871 sc_remove_cutmarking(scp); 3872 for (i=0; i<scp->ysize; i++) { 3873 if (sc_hist_down_line(scp)) { 3874 if (!(flags & SCGETC_CN)) 3875 sc_bell(scp, bios_value.bell_pitch, BELL_DURATION); 3876 break; 3877 } 3878 } 3879 goto next_code; 3880 } 3881 #endif /* SC_NO_HISTORY */ 3882 } 3883 3884 /* 3885 * Process and consume special keys here. Return a plain char code 3886 * or a char code with the META flag or a function key code. 3887 */ 3888 if (c & RELKEY) { 3889 /* key released */ 3890 /* goto next_code */ 3891 } else { 3892 /* key pressed */ 3893 if (c & SPCLKEY) { 3894 c &= ~SPCLKEY; 3895 switch (KEYCHAR(c)) { 3896 /* LOCKING KEYS */ 3897 case NLK: case CLK: case ALK: 3898 break; 3899 case SLK: 3900 kbd_ioctl(sc->kbd, KDGKBSTATE, (caddr_t)&f); 3901 if (f & SLKED) { 3902 scp->status |= SLKED; 3903 } else { 3904 if (scp->status & SLKED) { 3905 scp->status &= ~SLKED; 3906 #ifndef SC_NO_HISTORY 3907 if (scp->status & BUFFER_SAVED) { 3908 if (!sc_hist_restore(scp)) 3909 sc_remove_cutmarking(scp); 3910 scp->status &= ~BUFFER_SAVED; 3911 scp->status |= CURSOR_ENABLED; 3912 sc_draw_cursor_image(scp); 3913 } 3914 tp = VIRTUAL_TTY(sc, scp->index); 3915 if (ISTTYOPEN(tp)) 3916 scstart(tp); 3917 #endif 3918 } 3919 } 3920 break; 3921 3922 /* NON-LOCKING KEYS */ 3923 case NOP: 3924 case LSH: case RSH: case LCTR: case RCTR: 3925 case LALT: case RALT: case ASH: case META: 3926 break; 3927 3928 case BTAB: 3929 if (!(sc->flags & SC_SCRN_BLANKED)) { 3930 lwkt_reltoken(&vga_token); 3931 return c; 3932 } 3933 break; 3934 3935 case SPSC: 3936 #if NSPLASH > 0 3937 /* force activatation/deactivation of the screen saver */ 3938 if (!(sc->flags & SC_SCRN_BLANKED)) { 3939 run_scrn_saver = TRUE; 3940 sc->scrn_time_stamp -= scrn_blank_time; 3941 } 3942 if (cold) { 3943 /* 3944 * While devices are being probed, the screen saver need 3945 * to be invoked explictly. XXX 3946 */ 3947 if (sc->flags & SC_SCRN_BLANKED) { 3948 scsplash_stick(FALSE); 3949 stop_scrn_saver(sc, current_saver); 3950 } else { 3951 if (!ISGRAPHSC(scp)) { 3952 scsplash_stick(TRUE); 3953 (*current_saver)(sc, TRUE); 3954 } 3955 } 3956 } 3957 #endif /* NSPLASH */ 3958 break; 3959 3960 case RBT: 3961 #ifndef SC_DISABLE_REBOOT 3962 shutdown_nice(0); 3963 #endif 3964 break; 3965 3966 case HALT: 3967 #ifndef SC_DISABLE_REBOOT 3968 shutdown_nice(RB_HALT); 3969 #endif 3970 break; 3971 3972 case PDWN: 3973 #ifndef SC_DISABLE_REBOOT 3974 shutdown_nice(RB_HALT|RB_POWEROFF); 3975 #endif 3976 break; 3977 3978 case SUSP: 3979 case STBY: 3980 break; 3981 3982 case DBG: 3983 #ifndef SC_DISABLE_DDBKEY 3984 #ifdef DDB 3985 lwkt_reltoken(&vga_token); 3986 Debugger("manual escape to debugger"); 3987 lwkt_gettoken(&vga_token); 3988 #else 3989 kprintf("No debugger in kernel\n"); 3990 #endif 3991 #else /* SC_DISABLE_DDBKEY */ 3992 /* do nothing */ 3993 #endif /* SC_DISABLE_DDBKEY */ 3994 break; 3995 3996 case PNC: 3997 if (enable_panic_key) 3998 panic("Forced by the panic key"); 3999 break; 4000 4001 case NEXT: 4002 this_scr = scp->index; 4003 for (i = (this_scr - sc->first_vty + 1)%sc->vtys; 4004 sc->first_vty + i != this_scr; 4005 i = (i + 1)%sc->vtys) { 4006 struct tty *tp = VIRTUAL_TTY(sc, sc->first_vty + i); 4007 if (ISTTYOPEN(tp)) { 4008 syscons_lock(); 4009 sc_switch_scr(scp->sc, sc->first_vty + i); 4010 syscons_unlock(); 4011 break; 4012 } 4013 } 4014 break; 4015 4016 case PREV: 4017 this_scr = scp->index; 4018 for (i = (this_scr - sc->first_vty + sc->vtys - 1)%sc->vtys; 4019 sc->first_vty + i != this_scr; 4020 i = (i + sc->vtys - 1)%sc->vtys) { 4021 struct tty *tp = VIRTUAL_TTY(sc, sc->first_vty + i); 4022 if (ISTTYOPEN(tp)) { 4023 syscons_lock(); 4024 sc_switch_scr(scp->sc, sc->first_vty + i); 4025 syscons_unlock(); 4026 break; 4027 } 4028 } 4029 break; 4030 4031 default: 4032 if (KEYCHAR(c) >= F_SCR && KEYCHAR(c) <= L_SCR) { 4033 syscons_lock(); 4034 sc_switch_scr(scp->sc, sc->first_vty + KEYCHAR(c) - F_SCR); 4035 syscons_unlock(); 4036 break; 4037 } 4038 /* assert(c & FKEY) */ 4039 if (!(sc->flags & SC_SCRN_BLANKED)) { 4040 lwkt_reltoken(&vga_token); 4041 return c; 4042 } 4043 break; 4044 } 4045 /* goto next_code */ 4046 } else { 4047 /* regular keys (maybe MKEY is set) */ 4048 if (!(sc->flags & SC_SCRN_BLANKED)) { 4049 lwkt_reltoken(&vga_token); 4050 return c; 4051 } 4052 } 4053 } 4054 4055 goto next_code; 4056 } 4057 4058 static int 4059 scmmap(struct dev_mmap_args *ap) 4060 { 4061 scr_stat *scp; 4062 4063 lwkt_gettoken(&vga_token); 4064 scp = SC_STAT(ap->a_head.a_dev); 4065 if (scp != scp->sc->cur_scp) { 4066 lwkt_reltoken(&vga_token); 4067 return EINVAL; 4068 } 4069 if (scp->sc->fbi != NULL) { 4070 size_t sz = 4071 roundup(scp->sc->fbi->height * scp->sc->fbi->stride, PAGE_SIZE); 4072 if (ap->a_offset > sz - PAGE_SIZE) { 4073 lwkt_reltoken(&vga_token); 4074 return EINVAL; 4075 } else { 4076 ap->a_result = atop(scp->sc->fbi->paddr + ap->a_offset); 4077 } 4078 } else { 4079 ap->a_result = (*vidsw[scp->sc->adapter]->mmap)(scp->sc->adp, 4080 ap->a_offset, 4081 ap->a_nprot); 4082 } 4083 lwkt_reltoken(&vga_token); 4084 return(0); 4085 } 4086 4087 static int 4088 save_kbd_state(scr_stat *scp, int unlock) 4089 { 4090 int state; 4091 int error; 4092 4093 WANT_UNLOCK(unlock); 4094 error = kbd_ioctl(scp->sc->kbd, KDGKBSTATE, (caddr_t)&state); 4095 WANT_LOCK(unlock); 4096 4097 if (error == ENOIOCTL) 4098 error = ENODEV; 4099 if (error == 0) { 4100 scp->status &= ~LOCK_MASK; 4101 scp->status |= state; 4102 } 4103 return error; 4104 } 4105 4106 static int 4107 update_kbd_state(scr_stat *scp, int new_bits, int mask, int unlock) 4108 { 4109 int state; 4110 int error; 4111 4112 if (mask != LOCK_MASK) { 4113 WANT_UNLOCK(unlock); 4114 error = kbd_ioctl(scp->sc->kbd, KDGKBSTATE, (caddr_t)&state); 4115 WANT_LOCK(unlock); 4116 4117 if (error == ENOIOCTL) 4118 error = ENODEV; 4119 if (error) { 4120 return error; 4121 } 4122 state &= ~mask; 4123 state |= new_bits & mask; 4124 } else { 4125 state = new_bits & LOCK_MASK; 4126 } 4127 WANT_UNLOCK(unlock); 4128 error = kbd_ioctl(scp->sc->kbd, KDSKBSTATE, (caddr_t)&state); 4129 WANT_LOCK(unlock); 4130 if (error == ENOIOCTL) 4131 error = ENODEV; 4132 return error; 4133 } 4134 4135 static int 4136 update_kbd_leds(scr_stat *scp, int which) 4137 { 4138 int error; 4139 4140 which &= LOCK_MASK; 4141 error = kbd_ioctl(scp->sc->kbd, KDSETLED, (caddr_t)&which); 4142 if (error == ENOIOCTL) 4143 error = ENODEV; 4144 return error; 4145 } 4146 4147 int 4148 set_mode(scr_stat *scp) 4149 { 4150 video_info_t info; 4151 4152 lwkt_gettoken(&vga_token); 4153 /* reject unsupported mode */ 4154 if (scp->sc->fbi == NULL && (*vidsw[scp->sc->adapter]->get_info)(scp->sc->adp, scp->mode, &info)) { 4155 lwkt_reltoken(&vga_token); 4156 return 1; 4157 } 4158 4159 /* if this vty is not currently showing, do nothing */ 4160 if (scp != scp->sc->cur_scp) { 4161 lwkt_reltoken(&vga_token); 4162 return 0; 4163 } 4164 4165 /* setup video hardware for the given mode */ 4166 if (scp->sc->fbi == NULL) { 4167 (*vidsw[scp->sc->adapter]->set_mode)(scp->sc->adp, scp->mode); 4168 sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, scp->xsize, scp->ysize, 4169 (void *)scp->sc->adp->va_window, FALSE); 4170 } else { 4171 goto done; 4172 } 4173 4174 #ifndef SC_NO_FONT_LOADING 4175 /* load appropriate font */ 4176 if (!(scp->status & GRAPHICS_MODE)) { 4177 if (!(scp->status & PIXEL_MODE) && ISFONTAVAIL(scp->sc->adp->va_flags)) { 4178 if (scp->font_height < 14) { 4179 if (scp->sc->fonts_loaded & FONT_8) 4180 sc_load_font(scp, 0, 8, scp->sc->font_8, 0, 256); 4181 } else if (scp->font_height >= 16) { 4182 if (scp->sc->fonts_loaded & FONT_16) 4183 sc_load_font(scp, 0, 16, scp->sc->font_16, 0, 256); 4184 } else { 4185 if (scp->sc->fonts_loaded & FONT_14) 4186 sc_load_font(scp, 0, 14, scp->sc->font_14, 0, 256); 4187 } 4188 /* 4189 * FONT KLUDGE: 4190 * This is an interim kludge to display correct font. 4191 * Always use the font page #0 on the video plane 2. 4192 * Somehow we cannot show the font in other font pages on 4193 * some video cards... XXX 4194 */ 4195 sc_show_font(scp, 0); 4196 } 4197 mark_all(scp); 4198 } 4199 #endif /* !SC_NO_FONT_LOADING */ 4200 4201 sc_set_border(scp, scp->border); 4202 sc_set_cursor_image(scp); 4203 4204 done: 4205 lwkt_reltoken(&vga_token); 4206 return 0; 4207 } 4208 4209 void 4210 refresh_ega_palette(scr_stat *scp) 4211 { 4212 uint32_t r, g, b; 4213 int reg; 4214 int rsize, gsize, bsize; 4215 int rfld, gfld, bfld; 4216 int i; 4217 4218 rsize = scp->sc->adp->va_info.vi_pixel_fsizes[0]; 4219 gsize = scp->sc->adp->va_info.vi_pixel_fsizes[1]; 4220 bsize = scp->sc->adp->va_info.vi_pixel_fsizes[2]; 4221 rfld = scp->sc->adp->va_info.vi_pixel_fields[0]; 4222 gfld = scp->sc->adp->va_info.vi_pixel_fields[1]; 4223 bfld = scp->sc->adp->va_info.vi_pixel_fields[2]; 4224 4225 for (i = 0; i < 16; i++) { 4226 reg = scp->sc->adp->va_palette_regs[i]; 4227 4228 r = scp->sc->palette[reg * 3] >> (8 - rsize); 4229 g = scp->sc->palette[reg * 3 + 1] >> (8 - gsize); 4230 b = scp->sc->palette[reg * 3 + 2] >> (8 - bsize); 4231 4232 scp->ega_palette[i] = (r << rfld) + (g << gfld) + (b << bfld); 4233 } 4234 } 4235 4236 void 4237 sc_set_border(scr_stat *scp, int color) 4238 { 4239 atomic_add_int(&scp->sc->videoio_in_progress, 1); 4240 (*scp->rndr->draw_border)(scp, color); 4241 atomic_add_int(&scp->sc->videoio_in_progress, -1); 4242 } 4243 4244 #ifndef SC_NO_FONT_LOADING 4245 void 4246 sc_load_font(scr_stat *scp, int page, int size, u_char *buf, 4247 int base, int count) 4248 { 4249 sc_softc_t *sc; 4250 4251 sc = scp->sc; 4252 sc->font_loading_in_progress = TRUE; 4253 (*vidsw[sc->adapter]->load_font)(sc->adp, page, size, buf, base, count); 4254 sc->font_loading_in_progress = FALSE; 4255 } 4256 4257 void 4258 sc_save_font(scr_stat *scp, int page, int size, u_char *buf, 4259 int base, int count) 4260 { 4261 sc_softc_t *sc; 4262 4263 sc = scp->sc; 4264 sc->font_loading_in_progress = TRUE; 4265 (*vidsw[sc->adapter]->save_font)(sc->adp, page, size, buf, base, count); 4266 sc->font_loading_in_progress = FALSE; 4267 } 4268 4269 void 4270 sc_show_font(scr_stat *scp, int page) 4271 { 4272 (*vidsw[scp->sc->adapter]->show_font)(scp->sc->adp, page); 4273 } 4274 #endif /* !SC_NO_FONT_LOADING */ 4275 4276 void 4277 sc_paste(scr_stat *scp, u_char *p, int count) 4278 { 4279 struct tty *tp; 4280 u_char *rmap; 4281 4282 /* 4283 * Holy hell, don't try to inject a paste buffer if the keyboard 4284 * is not in ascii mode! 4285 */ 4286 if (scp->kbd_mode != K_XLATE) 4287 return; 4288 4289 lwkt_gettoken(&vga_token); 4290 if (scp->status & MOUSE_VISIBLE) { 4291 tp = VIRTUAL_TTY(scp->sc, scp->sc->cur_scp->index); 4292 lwkt_gettoken(&tp->t_token); 4293 if (!ISTTYOPEN(tp)) { 4294 lwkt_reltoken(&tp->t_token); 4295 lwkt_reltoken(&vga_token); 4296 return; 4297 } 4298 rmap = scp->sc->scr_rmap; 4299 for (; count > 0; --count) 4300 (*linesw[tp->t_line].l_rint)(rmap[*p++], tp); 4301 lwkt_reltoken(&tp->t_token); 4302 } 4303 lwkt_reltoken(&vga_token); 4304 } 4305 4306 void 4307 sc_bell(scr_stat *scp, int pitch, int duration) 4308 { 4309 if (cold || shutdown_in_progress) 4310 return; 4311 4312 if (scp != scp->sc->cur_scp && (scp->sc->flags & SC_QUIET_BELL)) { 4313 return; 4314 } 4315 4316 if (scp->sc->flags & SC_VISUAL_BELL) { 4317 if (scp->sc->blink_in_progress) { 4318 return; 4319 } 4320 scp->sc->blink_in_progress = 3; 4321 if (scp != scp->sc->cur_scp) 4322 scp->sc->blink_in_progress += 2; 4323 lockmgr(&syscons_blink_lk, LK_EXCLUSIVE); 4324 sc_blink_screen(scp->sc->cur_scp); 4325 lockmgr(&syscons_blink_lk, LK_RELEASE); 4326 } else if (duration != 0 && pitch != 0) { 4327 if (scp != scp->sc->cur_scp) 4328 pitch *= 2; 4329 sysbeep(pitch, duration); 4330 } 4331 } 4332 4333 /* 4334 * Blink the screen, called with the syscons_mtx and syscons_blink_lk 4335 * held. Can be called directly or via the callout. 4336 */ 4337 static void 4338 sc_blink_screen(scr_stat *scp) 4339 { 4340 if (ISGRAPHSC(scp) || (scp->sc->blink_in_progress <= 1)) { 4341 scp->sc->blink_in_progress = 0; 4342 mark_all(scp); 4343 if (scp->sc->delayed_next_scr) 4344 sc_switch_scr(scp->sc, scp->sc->delayed_next_scr - 1); 4345 } else { 4346 (*scp->rndr->draw)(scp, 0, scp->xsize*scp->ysize, 4347 scp->sc->blink_in_progress & 1); 4348 scp->sc->blink_in_progress--; 4349 callout_reset(&scp->blink_screen_ch, hz / 10, 4350 blink_screen_callout, scp); 4351 } 4352 } 4353 4354 /* 4355 * Screen blink callout. Note that there is a lock order 4356 * reversal between syscons_blink_lk and the syscons lock. 4357 * Acquire the syscons lock non-blocking. 4358 */ 4359 static void 4360 blink_screen_callout(void *arg) 4361 { 4362 scr_stat *scp = arg; 4363 4364 if (syscons_lock_nonblock() == 0) { 4365 sc_blink_screen(scp); 4366 syscons_unlock(); 4367 } else { 4368 callout_reset(&scp->blink_screen_ch, hz / 10, 4369 blink_screen_callout, scp); 4370 } 4371 } 4372 4373 /* 4374 * Allocate active keyboard. Try to allocate "kbdmux" keyboard first, and, 4375 * if found, add all non-busy keyboards to "kbdmux". Otherwise look for 4376 * any keyboard. 4377 */ 4378 4379 static int 4380 sc_allocate_keyboard(sc_softc_t *sc, int unit) 4381 { 4382 int idx0, idx; 4383 keyboard_t *k0, *k; 4384 keyboard_info_t ki; 4385 4386 idx0 = kbd_allocate("kbdmux", -1, (void *)&sc->keyboard, sckbdevent, sc); 4387 if (idx0 != -1) { 4388 k0 = kbd_get_keyboard(idx0); 4389 4390 for (idx = kbd_find_keyboard2("*", -1, 0, 0); 4391 idx != -1; 4392 idx = kbd_find_keyboard2("*", -1, idx + 1, 0)) { 4393 k = kbd_get_keyboard(idx); 4394 4395 if (idx == idx0 || KBD_IS_BUSY(k)) 4396 continue; 4397 4398 bzero(&ki, sizeof(ki)); 4399 strcpy(ki.kb_name, k->kb_name); 4400 ki.kb_unit = k->kb_unit; 4401 4402 kbd_ioctl(k0, KBADDKBD, (caddr_t) &ki); 4403 } 4404 } else 4405 idx0 = kbd_allocate("*", unit, (void *)&sc->keyboard, sckbdevent, sc); 4406 4407 return (idx0); 4408 } 4409