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 if (syscons_lock_nonblock() != 0) 1881 return; 1882 #ifndef SC_NO_HISTORY 1883 if (scp == scp->sc->cur_scp && scp->status & SLKED) { 1884 scp->status &= ~SLKED; 1885 #if 0 1886 /* This can block, illegal in the console path */ 1887 update_kbd_state(scp, scp->status, SLKED, TRUE); 1888 #endif 1889 if (scp->status & BUFFER_SAVED) { 1890 if (!sc_hist_restore(scp)) 1891 sc_remove_cutmarking(scp); 1892 scp->status &= ~BUFFER_SAVED; 1893 scp->status |= CURSOR_ENABLED; 1894 sc_draw_cursor_image(scp); 1895 } 1896 #if 0 1897 tp = VIRTUAL_TTY(scp->sc, scp->index); 1898 /* This can block, illegal in the console path */ 1899 if (ISTTYOPEN(tp)) { 1900 scstart(tp); 1901 } 1902 #endif 1903 } 1904 #endif /* !SC_NO_HISTORY */ 1905 1906 save = scp->ts; 1907 if (kernel_console_ts != NULL) 1908 scp->ts = kernel_console_ts; 1909 buf[0] = c; 1910 sc_puts(scp, buf, 1); 1911 scp->ts = save; 1912 1913 sccnupdate(scp); 1914 syscons_unlock(); 1915 } 1916 1917 /* 1918 * Console path - cannot block! 1919 */ 1920 static int 1921 sccngetc(void *private) 1922 { 1923 return sccngetch(0); 1924 } 1925 1926 /* 1927 * Console path - cannot block! 1928 */ 1929 static int 1930 sccncheckc(void *private) 1931 { 1932 return sccngetch(SCGETC_NONBLOCK); 1933 } 1934 1935 /* 1936 * Set polling mode (also disables the tty feed), use when 1937 * polling for console key input. 1938 */ 1939 static void 1940 sccnpoll(void *private, int on) 1941 { 1942 scr_stat *scp; 1943 1944 syscons_lock(); 1945 sc_touch_scrn_saver(); 1946 scp = sc_console->sc->cur_scp; /* XXX */ 1947 syscons_unlock(); 1948 if (scp->sc->kbd) 1949 kbd_poll(scp->sc->kbd, on); 1950 } 1951 1952 static void 1953 sccndbctl(void *private, int on) 1954 { 1955 /* assert(sc_console_unit >= 0) */ 1956 /* try to switch to the kernel console screen */ 1957 if (on && debugger == 0) { 1958 /* 1959 * TRY to make sure the screen saver is stopped, 1960 * and the screen is updated before switching to 1961 * the vty0. 1962 */ 1963 scrn_timer(NULL); 1964 if (!cold 1965 && sc_console->sc->cur_scp->smode.mode == VT_AUTO 1966 && sc_console->smode.mode == VT_AUTO) { 1967 sc_console->sc->cur_scp->status |= MOUSE_HIDDEN; 1968 syscons_lock(); 1969 sc_switch_scr(sc_console->sc, sc_console->index); 1970 syscons_unlock(); 1971 } 1972 } 1973 if (on) 1974 ++debugger; 1975 else 1976 --debugger; 1977 } 1978 1979 /* 1980 * Console path - cannot block! 1981 */ 1982 static int 1983 sccngetch(int flags) 1984 { 1985 static struct fkeytab fkey; 1986 static int fkeycp; 1987 scr_stat *scp; 1988 u_char *p; 1989 int cur_mode; 1990 int c; 1991 1992 syscons_lock(); 1993 /* assert(sc_console != NULL) */ 1994 1995 /* 1996 * Stop the screen saver and update the screen if necessary. 1997 * What if we have been running in the screen saver code... XXX 1998 */ 1999 sc_touch_scrn_saver(); 2000 scp = sc_console->sc->cur_scp; /* XXX */ 2001 sccnupdate(scp); 2002 syscons_unlock(); 2003 2004 if (fkeycp < fkey.len) { 2005 return fkey.str[fkeycp++]; 2006 } 2007 2008 if (scp->sc->kbd == NULL) { 2009 return -1; 2010 } 2011 2012 /* 2013 * Make sure the keyboard is accessible even when the kbd device 2014 * driver is disabled. 2015 */ 2016 crit_enter(); 2017 kbd_enable(scp->sc->kbd); 2018 2019 /* we shall always use the keyboard in the XLATE mode here */ 2020 cur_mode = scp->kbd_mode; 2021 scp->kbd_mode = K_XLATE; 2022 kbd_ioctl(scp->sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode); 2023 2024 c = scgetc(scp->sc, SCGETC_CN | flags); 2025 2026 scp->kbd_mode = cur_mode; 2027 kbd_ioctl(scp->sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode); 2028 kbd_disable(scp->sc->kbd); 2029 crit_exit(); 2030 2031 switch (KEYFLAGS(c)) { 2032 case 0: /* normal char */ 2033 return KEYCHAR(c); 2034 case FKEY: /* function key */ 2035 p = kbd_get_fkeystr(scp->sc->kbd, KEYCHAR(c), (size_t *)&fkeycp); 2036 fkey.len = fkeycp; 2037 if ((p != NULL) && (fkey.len > 0)) { 2038 bcopy(p, fkey.str, fkey.len); 2039 fkeycp = 1; 2040 return fkey.str[0]; 2041 } 2042 return c; /* XXX */ 2043 case NOKEY: 2044 if (flags & SCGETC_NONBLOCK) 2045 return c; 2046 /* fall through */ 2047 case ERRKEY: 2048 default: 2049 return -1; 2050 } 2051 /* NOT REACHED */ 2052 } 2053 2054 static void 2055 sccnupdate(scr_stat *scp) 2056 { 2057 int ddb_active; 2058 2059 #ifdef DDB 2060 ddb_active = db_active; 2061 #else 2062 ddb_active = 0; 2063 #endif 2064 2065 /* this is a cut-down version of scrn_timer()... */ 2066 2067 /* 2068 * Don't update if videoio is in progress. However, if we are paniced 2069 * or in the debugger it is possible that the variables might be stuck, 2070 * so ignore it in such cases. 2071 */ 2072 if (scp->sc->font_loading_in_progress || scp->sc->videoio_in_progress) { 2073 if (panicstr == NULL && ddb_active == 0 && shutdown_in_progress == 0) 2074 return; 2075 } 2076 2077 if (debugger > 0 || panicstr || ddb_active || shutdown_in_progress) { 2078 sc_touch_scrn_saver(); 2079 } else if (scp != scp->sc->cur_scp) { 2080 return; 2081 } 2082 2083 if (!run_scrn_saver) 2084 scp->sc->flags &= ~SC_SCRN_IDLE; 2085 #if NSPLASH > 0 2086 /* 2087 * This is a hard path, we cannot call stop_scrn_saver() here. 2088 */ 2089 if ((saver_mode != CONS_LKM_SAVER) || !(scp->sc->flags & SC_SCRN_IDLE)) 2090 if (scp->sc->flags & SC_SCRN_BLANKED) { 2091 sc_touch_scrn_saver(); 2092 /*stop_scrn_saver(scp->sc, current_saver);*/ 2093 } 2094 #endif /* NSPLASH */ 2095 2096 if (scp != scp->sc->cur_scp || scp->sc->blink_in_progress 2097 || scp->sc->switch_in_progress) { 2098 return; 2099 } 2100 2101 /* 2102 * FIXME: unlike scrn_timer(), we call scrn_update() from here even 2103 * when write_in_progress is non-zero. XXX 2104 */ 2105 if (!ISGRAPHSC(scp) && !(scp->sc->flags & SC_SCRN_BLANKED)) 2106 scrn_update(scp, TRUE, SCRN_ASYNCOK); 2107 } 2108 2109 static void 2110 scrn_timer(void *arg) 2111 { 2112 static int kbd_interval = 0; 2113 struct timeval tv; 2114 sc_softc_t *sc; 2115 scr_stat *scp; 2116 int again; 2117 2118 /* 2119 * Setup depending on who called us 2120 */ 2121 again = (arg != NULL); 2122 if (arg != NULL) { 2123 sc = (sc_softc_t *)arg; 2124 } else if (sc_console != NULL) { 2125 sc = sc_console->sc; 2126 } else { 2127 return; 2128 } 2129 2130 /* 2131 * Don't do anything when we are performing some I/O operations. 2132 * (These are initiated by the frontend?) 2133 */ 2134 if (sc->font_loading_in_progress || sc->videoio_in_progress) { 2135 if (again) 2136 callout_reset(&sc->scrn_timer_ch, hz / 10, scrn_timer, sc); 2137 return; 2138 } 2139 2140 /* 2141 * Try to allocate a keyboard automatically 2142 */ 2143 if ((sc->kbd == NULL) && (sc->config & SC_AUTODETECT_KBD)) { 2144 if (++kbd_interval >= 25) { 2145 sc->keyboard = sc_allocate_keyboard(sc, -1); 2146 if (sc->keyboard >= 0) { 2147 sc->kbd = kbd_get_keyboard(sc->keyboard); 2148 kbd_ioctl(sc->kbd, KDSKBMODE, 2149 (caddr_t)&sc->cur_scp->kbd_mode); 2150 update_kbd_state(sc->cur_scp, sc->cur_scp->status, 2151 LOCK_MASK, FALSE); 2152 } 2153 kbd_interval = 0; 2154 } 2155 } 2156 2157 /* 2158 * Should we stop the screen saver? We need the syscons_lock 2159 * for most of this stuff. 2160 */ 2161 getmicrouptime(&tv); 2162 2163 if (syscons_lock_nonblock() != 0) { 2164 /* failed to get the lock */ 2165 if (again) 2166 callout_reset(&sc->scrn_timer_ch, hz / 10, scrn_timer, sc); 2167 return; 2168 } 2169 /* successful lock */ 2170 2171 if (debugger > 0 || panicstr || shutdown_in_progress) 2172 sc_touch_scrn_saver(); 2173 if (run_scrn_saver) { 2174 if (tv.tv_sec > sc->scrn_time_stamp + scrn_blank_time) 2175 sc->flags |= SC_SCRN_IDLE; 2176 else 2177 sc->flags &= ~SC_SCRN_IDLE; 2178 } else { 2179 sc->scrn_time_stamp = tv.tv_sec; 2180 sc->flags &= ~SC_SCRN_IDLE; 2181 if (scrn_blank_time > 0) 2182 run_scrn_saver = TRUE; 2183 } 2184 #if NSPLASH > 0 2185 if ((saver_mode != CONS_LKM_SAVER) || !(sc->flags & SC_SCRN_IDLE)) { 2186 if ((sc->flags & SC_SCRN_BLANKED) && !ISGRAPHSC(sc->cur_scp)) 2187 stop_scrn_saver(sc, current_saver); 2188 } 2189 #endif /* NSPLASH */ 2190 2191 /* should we just return ? */ 2192 if (sc->blink_in_progress || sc->switch_in_progress || 2193 sc->write_in_progress) 2194 { 2195 syscons_unlock(); 2196 if (again) 2197 callout_reset(&sc->scrn_timer_ch, hz / 10, scrn_timer, sc); 2198 return; 2199 } 2200 2201 /* Update the screen */ 2202 scp = sc->cur_scp; /* cur_scp may have changed... */ 2203 if (!ISGRAPHSC(scp) && !(sc->flags & SC_SCRN_BLANKED)) 2204 scrn_update(scp, TRUE, SCRN_ASYNCOK); 2205 2206 #if NSPLASH > 0 2207 /* should we activate the screen saver? */ 2208 if ((saver_mode == CONS_LKM_SAVER) && (sc->flags & SC_SCRN_IDLE)) 2209 if (!ISGRAPHSC(scp) || (sc->flags & SC_SCRN_BLANKED)) 2210 (*current_saver)(sc, TRUE); 2211 #endif /* NSPLASH */ 2212 2213 syscons_unlock(); 2214 if (again) 2215 callout_reset(&sc->scrn_timer_ch, hz / 25, scrn_timer, sc); 2216 } 2217 2218 static int 2219 and_region(int *s1, int *e1, int s2, int e2) 2220 { 2221 if (*e1 < s2 || e2 < *s1) 2222 return FALSE; 2223 *s1 = imax(*s1, s2); 2224 *e1 = imin(*e1, e2); 2225 return TRUE; 2226 } 2227 2228 /* 2229 * Refresh modified frame buffer range. Also used to 2230 * scroll (entire FB is marked modified). 2231 * 2232 * This function is allowed to run without the syscons_lock, 2233 * so scp fields can change unexpected. We cache most values 2234 * that we care about and silently discard illegal ranges. 2235 */ 2236 static void 2237 scrn_update(scr_stat *scp, int show_cursor, int flags) 2238 { 2239 int start; 2240 int end; 2241 int cpos; 2242 int copos; 2243 int s; 2244 int e; 2245 int ddb_active; 2246 2247 #ifdef DDB 2248 ddb_active = db_active; 2249 #else 2250 ddb_active = 0; 2251 #endif 2252 2253 /* 2254 * Try to run large screen updates as an async operation, which will 2255 * call this function again from a thread with BULKUNLOCK set, allowing 2256 * interrupts during the update which tends to make the system behave 2257 * better (no sound glitches, etc). 2258 */ 2259 if ((flags & SCRN_ASYNCOK) && syscons_async && scp->asynctd && 2260 (scp->end - scp->start) > 16 && 2261 panicstr == NULL && ddb_active == 0 && shutdown_in_progress == 0) { 2262 scp->show_cursor = show_cursor; 2263 scp->queue_update_td = 1; 2264 wakeup(&scp->asynctd); 2265 return; 2266 } 2267 if (flags & SCRN_BULKUNLOCK) 2268 syscons_lock(); 2269 2270 /* 2271 * Synchronous operation or called from 2272 */ 2273 2274 /* assert(scp == scp->sc->cur_scp) */ 2275 atomic_add_int(&scp->sc->videoio_in_progress, 1); 2276 2277 cpos = scp->cursor_pos; 2278 copos = scp->cursor_oldpos; 2279 2280 #ifndef SC_NO_CUTPASTE 2281 /* remove the previous mouse pointer image if necessary */ 2282 if (scp->status & MOUSE_VISIBLE) { 2283 s = scp->mouse_pos; 2284 e = scp->mouse_pos + scp->xsize + 1; 2285 if ((scp->status & (MOUSE_MOVED | MOUSE_HIDDEN)) 2286 || and_region(&s, &e, scp->start, scp->end) 2287 || ((scp->status & CURSOR_ENABLED) && 2288 (cpos != copos) && 2289 (and_region(&s, &e, cpos, cpos) 2290 || and_region(&s, &e, copos, copos)))) { 2291 sc_remove_mouse_image(scp); 2292 if (scp->end >= scp->xsize*scp->ysize) 2293 scp->end = scp->xsize*scp->ysize - 1; 2294 } 2295 } 2296 #endif /* !SC_NO_CUTPASTE */ 2297 2298 /* 2299 * WARNING: Don't add debugging kprintf()s with syscons locked. 2300 * Or at all. 2301 */ 2302 if (scp->end >= scp->xsize*scp->ysize) { 2303 scp->end = scp->xsize*scp->ysize - 1; 2304 } 2305 if (scp->start < 0) { 2306 scp->start = 0; 2307 } 2308 2309 /* 2310 * Main update, extract update range and reset 2311 * ASAP. 2312 */ 2313 start = scp->start; 2314 end = scp->end; 2315 scp->end = 0; 2316 scp->start = scp->xsize * scp->ysize - 1; 2317 2318 if (start <= end) { 2319 if (flags & SCRN_BULKUNLOCK) { 2320 atomic_add_int(&scp->sc->videoio_in_progress, -1); 2321 syscons_unlock(); 2322 } 2323 (*scp->rndr->draw)(scp, start, end - start + 1, FALSE); 2324 if (flags & SCRN_BULKUNLOCK) { 2325 syscons_lock(); 2326 atomic_add_int(&scp->sc->videoio_in_progress, 1); 2327 } 2328 2329 /* 2330 * Handle cut sequence 2331 */ 2332 s = scp->mouse_cut_start; 2333 e = scp->mouse_cut_end; 2334 cpu_ccfence(); /* allowed to race */ 2335 2336 if (e >= 0) { 2337 if (s > e) { 2338 int r = s; 2339 s = e; 2340 e = r; 2341 } 2342 /* does the cut-mark region overlap with the update region? */ 2343 if (and_region(&s, &e, start, end)) { 2344 if (flags & SCRN_BULKUNLOCK) { 2345 atomic_add_int(&scp->sc->videoio_in_progress, -1); 2346 syscons_unlock(); 2347 } 2348 (*scp->rndr->draw)(scp, s, e - s + 1, TRUE); 2349 if (flags & SCRN_BULKUNLOCK) { 2350 syscons_lock(); 2351 atomic_add_int(&scp->sc->videoio_in_progress, 1); 2352 } 2353 } 2354 } 2355 } 2356 2357 /* we are not to show the cursor and the mouse pointer... */ 2358 if (!show_cursor) 2359 goto cleanup; 2360 2361 /* update cursor image */ 2362 if (scp->status & CURSOR_ENABLED) { 2363 s = start; 2364 e = end; 2365 /* did cursor move since last time ? */ 2366 if (cpos != copos) { 2367 /* do we need to remove old cursor image ? */ 2368 if (!and_region(&s, &e, copos, copos)) 2369 sc_remove_cursor_image(scp); 2370 sc_draw_cursor_image(scp); 2371 } else { 2372 if (s <= e && and_region(&s, &e, cpos, cpos)) { 2373 /* cursor didn't move, but has been overwritten */ 2374 sc_draw_cursor_image(scp); 2375 } else if (scp->sc->flags & SC_BLINK_CURSOR) { 2376 /* if it's a blinking cursor, update it */ 2377 (*scp->rndr->blink_cursor)(scp, cpos, 2378 sc_inside_cutmark(scp, cpos)); 2379 } 2380 } 2381 } 2382 2383 #ifndef SC_NO_CUTPASTE 2384 /* update "pseudo" mouse pointer image */ 2385 if (scp->sc->flags & SC_MOUSE_ENABLED) { 2386 if (!(scp->status & (MOUSE_VISIBLE | MOUSE_HIDDEN))) { 2387 scp->status &= ~MOUSE_MOVED; 2388 sc_draw_mouse_image(scp); 2389 } 2390 } 2391 #endif /* SC_NO_CUTPASTE */ 2392 2393 /* 2394 * Cleanup 2395 */ 2396 cleanup: 2397 atomic_add_int(&scp->sc->videoio_in_progress, -1); 2398 if (flags & SCRN_BULKUNLOCK) 2399 syscons_unlock(); 2400 } 2401 2402 /* 2403 * Thread handles potentially expensive screen updates. The function is 2404 * expected to operate safely without locks. 2405 */ 2406 static void 2407 scrn_update_thread(void *arg) 2408 { 2409 scr_stat *scp = arg; 2410 for (;;) { 2411 if (scp->queue_update_td == 0) { 2412 tsleep_interlock(&scp->asynctd, 0); 2413 if (scp->queue_update_td == 0) 2414 tsleep(&scp->asynctd, PINTERLOCKED, "wait", 0); 2415 } 2416 scp->queue_update_td = 0; 2417 lockmgr(&sc_asynctd_lk, LK_EXCLUSIVE); 2418 atomic_add_int(&scp->sc->videoio_in_progress, 1); 2419 scrn_update(scp, scp->show_cursor, SCRN_BULKUNLOCK); 2420 atomic_add_int(&scp->sc->videoio_in_progress, -1); 2421 lockmgr(&sc_asynctd_lk, LK_RELEASE); 2422 } 2423 } 2424 2425 static void 2426 sc_fb_set_par(void *context, int pending) 2427 { 2428 sc_softc_t *sc = context; 2429 2430 lwkt_gettoken(&vga_token); 2431 if (sc->fbi != NULL && sc->fbi->fbops.fb_set_par != NULL) 2432 sc->fbi->fbops.fb_set_par(sc->fbi); 2433 lwkt_reltoken(&vga_token); 2434 } 2435 2436 #if NSPLASH > 0 2437 static void 2438 sc_fb_blank(void *context, int pending) 2439 { 2440 sc_softc_t *sc = context; 2441 2442 lwkt_gettoken(&vga_token); 2443 if (sc->fbi != NULL && sc->fbi->fbops.fb_blank != NULL) { 2444 /* 0 == FB_BLANK_UNBLANK and 4 == FB_BLANK_POWERDOWN */ 2445 if (sc->flags & SC_SCRN_BLANKED) { 2446 sc->fbi->fbops.fb_blank(4, sc->fbi); 2447 sc->fb_blanked = TRUE; 2448 if (sc->unit == sc_console_unit) 2449 cons_unavail = TRUE; 2450 } else { 2451 sc->fbi->fbops.fb_blank(0, sc->fbi); 2452 sc->fb_blanked = FALSE; 2453 if (sc->unit == sc_console_unit && 2454 sc->cur_scp->smode.mode == VT_AUTO) 2455 cons_unavail = FALSE; 2456 } 2457 } 2458 lwkt_reltoken(&vga_token); 2459 } 2460 2461 static void 2462 scframebuffer_saver(sc_softc_t *sc, int show) 2463 { 2464 scr_stat *scp = sc->cur_scp; 2465 2466 if (panicstr) 2467 return; 2468 2469 /* 2470 * Gets called on every screen update while screensaver is active, 2471 * so we need to check the SC_SCRN_BLANKED flag ourselves. 2472 */ 2473 if ((sc->flags & SC_SCRN_BLANKED) && show) 2474 return; 2475 2476 taskqueue_cancel(taskqueue_thread[0], sc->fb_blank_task, NULL); 2477 crit_enter(); 2478 if (show) { 2479 scp->status |= SAVER_RUNNING; 2480 sc->flags |= SC_SCRN_BLANKED; 2481 ++scrn_blanked; 2482 } else { 2483 scp->status &= ~SAVER_RUNNING; 2484 sc->flags &= ~SC_SCRN_BLANKED; 2485 --scrn_blanked; 2486 } 2487 crit_exit(); 2488 taskqueue_enqueue(taskqueue_thread[0], sc->fb_blank_task); 2489 } 2490 2491 static int 2492 scsplash_callback(int event, void *arg) 2493 { 2494 sc_softc_t *sc; 2495 int error; 2496 2497 sc = (sc_softc_t *)arg; 2498 2499 switch (event) { 2500 case SPLASH_INIT: 2501 if (add_scrn_saver(scsplash_saver) == 0) { 2502 sc->flags &= ~SC_SAVER_FAILED; 2503 run_scrn_saver = TRUE; 2504 if (cold) { 2505 scsplash_stick(TRUE); 2506 (*current_saver)(sc, TRUE); 2507 } 2508 } 2509 return 0; 2510 2511 case SPLASH_TERM: 2512 if (current_saver == scsplash_saver) { 2513 scsplash_stick(FALSE); 2514 error = remove_scrn_saver(scsplash_saver); 2515 if (error) { 2516 return error; 2517 } 2518 } 2519 return 0; 2520 2521 default: 2522 return EINVAL; 2523 } 2524 } 2525 2526 static void 2527 scsplash_saver(sc_softc_t *sc, int show) 2528 { 2529 static int busy = FALSE; 2530 scr_stat *scp; 2531 2532 if (busy) 2533 return; 2534 busy = TRUE; 2535 2536 scp = sc->cur_scp; 2537 if (show) { 2538 if (!(sc->flags & SC_SAVER_FAILED)) { 2539 if (!(sc->flags & SC_SCRN_BLANKED)) 2540 set_scrn_saver_mode(scp, -1, NULL, 0); 2541 switch (splash(sc->adp, TRUE)) { 2542 case 0: /* succeeded */ 2543 break; 2544 case EAGAIN: /* try later */ 2545 restore_scrn_saver_mode(scp, FALSE); 2546 sc_touch_scrn_saver(); /* XXX */ 2547 break; 2548 default: 2549 sc->flags |= SC_SAVER_FAILED; 2550 scsplash_stick(FALSE); 2551 restore_scrn_saver_mode(scp, TRUE); 2552 kprintf("scsplash_saver(): failed to put up the image\n"); 2553 break; 2554 } 2555 } 2556 } else if (!sticky_splash) { 2557 if ((sc->flags & SC_SCRN_BLANKED) && (splash(sc->adp, FALSE) == 0)) 2558 restore_scrn_saver_mode(scp, TRUE); 2559 } 2560 busy = FALSE; 2561 } 2562 2563 static int 2564 add_scrn_saver(void (*this_saver)(sc_softc_t *, int)) 2565 { 2566 #if 0 2567 int error; 2568 2569 if (current_saver != none_saver) { 2570 error = remove_scrn_saver(current_saver); 2571 if (error) 2572 return error; 2573 } 2574 #endif 2575 if (current_saver != none_saver) { 2576 return EBUSY; 2577 } 2578 2579 run_scrn_saver = FALSE; 2580 saver_mode = CONS_LKM_SAVER; 2581 current_saver = this_saver; 2582 return 0; 2583 } 2584 2585 static int 2586 remove_scrn_saver(void (*this_saver)(sc_softc_t *, int)) 2587 { 2588 if (current_saver != this_saver) 2589 return EINVAL; 2590 2591 #if 0 2592 /* 2593 * In order to prevent `current_saver' from being called by 2594 * the timeout routine `scrn_timer()' while we manipulate 2595 * the saver list, we shall set `current_saver' to `none_saver' 2596 * before stopping the current saver, rather than blocking by `splXX()'. 2597 */ 2598 current_saver = none_saver; 2599 if (scrn_blanked) 2600 stop_scrn_saver(this_saver); 2601 #endif 2602 /* unblank all blanked screens */ 2603 wait_scrn_saver_stop(NULL, FALSE); 2604 if (scrn_blanked) { 2605 return EBUSY; 2606 } 2607 2608 current_saver = none_saver; 2609 return 0; 2610 } 2611 2612 static int 2613 set_scrn_saver_mode(scr_stat *scp, int mode, u_char *pal, int border) 2614 { 2615 2616 /* assert(scp == scp->sc->cur_scp) */ 2617 crit_enter(); 2618 if (!ISGRAPHSC(scp)) 2619 sc_remove_cursor_image(scp); 2620 scp->splash_save_mode = scp->mode; 2621 scp->splash_save_status = scp->status & (GRAPHICS_MODE | PIXEL_MODE); 2622 scp->status &= ~(GRAPHICS_MODE | PIXEL_MODE); 2623 scp->status |= (UNKNOWN_MODE | SAVER_RUNNING); 2624 scp->sc->flags |= SC_SCRN_BLANKED; 2625 ++scrn_blanked; 2626 crit_exit(); 2627 if (mode < 0) { 2628 return 0; 2629 } 2630 scp->mode = mode; 2631 if (set_mode(scp) == 0) { 2632 if (scp->sc->fbi == NULL && 2633 scp->sc->adp->va_info.vi_flags & V_INFO_GRAPHICS) { 2634 scp->status |= GRAPHICS_MODE; 2635 } 2636 if (scp->sc->fbi == NULL && pal != NULL) 2637 load_palette(scp->sc->adp, pal); 2638 sc_set_border(scp, border); 2639 return 0; 2640 } else { 2641 crit_enter(); 2642 scp->mode = scp->splash_save_mode; 2643 scp->status &= ~(UNKNOWN_MODE | SAVER_RUNNING); 2644 scp->status |= scp->splash_save_status; 2645 crit_exit(); 2646 return 1; 2647 } 2648 /* NOTREACHED */ 2649 } 2650 2651 static int 2652 restore_scrn_saver_mode(scr_stat *scp, int changemode) 2653 { 2654 int mode; 2655 int status; 2656 2657 /* assert(scp == scp->sc->cur_scp) */ 2658 crit_enter(); 2659 mode = scp->mode; 2660 status = scp->status; 2661 scp->mode = scp->splash_save_mode; 2662 scp->status &= ~(UNKNOWN_MODE | SAVER_RUNNING); 2663 scp->status |= scp->splash_save_status; 2664 scp->sc->flags &= ~SC_SCRN_BLANKED; 2665 if (!changemode) { 2666 if (!ISGRAPHSC(scp)) 2667 sc_draw_cursor_image(scp); 2668 --scrn_blanked; 2669 crit_exit(); 2670 return 0; 2671 } 2672 if (set_mode(scp) == 0) { 2673 if (scp->sc->fbi == NULL) 2674 load_palette(scp->sc->adp, scp->sc->palette); 2675 --scrn_blanked; 2676 crit_exit(); 2677 return 0; 2678 } else { 2679 scp->mode = mode; 2680 scp->status = status; 2681 crit_exit(); 2682 return 1; 2683 } 2684 /* NOTREACHED */ 2685 } 2686 2687 static void 2688 stop_scrn_saver(sc_softc_t *sc, void (*saver)(sc_softc_t *, int)) 2689 { 2690 (*saver)(sc, FALSE); 2691 run_scrn_saver = FALSE; 2692 /* the screen saver may have chosen not to stop after all... */ 2693 if (sc->flags & SC_SCRN_BLANKED) { 2694 return; 2695 } 2696 2697 mark_all(sc->cur_scp); 2698 if (sc->delayed_next_scr) 2699 sc_switch_scr(sc, sc->delayed_next_scr - 1); 2700 wakeup(&scrn_blanked); 2701 } 2702 2703 static int 2704 wait_scrn_saver_stop(sc_softc_t *sc, int need_unlock) 2705 { 2706 int error = 0; 2707 2708 while (scrn_blanked > 0) { 2709 run_scrn_saver = FALSE; 2710 if (sc && !(sc->flags & SC_SCRN_BLANKED)) { 2711 error = 0; 2712 break; 2713 } 2714 if (need_unlock) { 2715 tsleep_interlock(&scrn_blanked, PCATCH); 2716 syscons_unlock(); 2717 error = tsleep(&scrn_blanked, PCATCH | PINTERLOCKED, "scrsav", 0); 2718 syscons_lock(); 2719 } else { 2720 error = tsleep(&scrn_blanked, PCATCH, "scrsav", 0); 2721 } 2722 /* May return ERESTART */ 2723 if (error) 2724 break; 2725 } 2726 run_scrn_saver = FALSE; 2727 return error; 2728 } 2729 #endif /* NSPLASH */ 2730 2731 void 2732 sc_start_scrn_saver(sc_softc_t *sc) 2733 { 2734 #if NSPLASH > 0 2735 (*current_saver)(sc, TRUE); 2736 #endif 2737 } 2738 2739 void 2740 sc_stop_scrn_saver(sc_softc_t *sc) 2741 { 2742 #if NSPLASH > 0 2743 if (sc->flags & SC_SCRN_BLANKED) 2744 stop_scrn_saver(sc, current_saver); 2745 #endif 2746 } 2747 2748 void 2749 sc_touch_scrn_saver(void) 2750 { 2751 scsplash_stick(FALSE); 2752 run_scrn_saver = FALSE; 2753 } 2754 2755 int 2756 sc_switch_scr(sc_softc_t *sc, u_int next_scr) 2757 { 2758 scr_stat *cur_scp; 2759 struct tty *tp; 2760 2761 DPRINTF(5, ("sc0: sc_switch_scr() %d ", next_scr + 1)); 2762 2763 /* prevent switch if previously requested */ 2764 if (sc->flags & SC_SCRN_VTYLOCK) { 2765 sc_bell(sc->cur_scp, sc->cur_scp->bell_pitch, 2766 sc->cur_scp->bell_duration); 2767 return EPERM; 2768 } 2769 2770 /* delay switch if the screen is blanked or being updated */ 2771 if ((sc->flags & SC_SCRN_BLANKED) || sc->write_in_progress 2772 || sc->blink_in_progress || sc->videoio_in_progress) { 2773 sc->delayed_next_scr = next_scr + 1; 2774 sc_touch_scrn_saver(); 2775 DPRINTF(5, ("switch delayed\n")); 2776 return 0; 2777 } 2778 2779 cur_scp = sc->cur_scp; 2780 2781 /* 2782 * we are in the middle of the vty switching process... 2783 * 2784 * This may be in the console path, be very careful. pfindn() is 2785 * still going to use a spinlock but it no longer uses tokens so 2786 * we should be ok. 2787 */ 2788 if (sc->switch_in_progress && 2789 (cur_scp->smode.mode == VT_PROCESS) && 2790 cur_scp->proc) { 2791 if (cur_scp->proc != pfindn(cur_scp->pid)) { 2792 /* 2793 * The controlling process has died!!. Do some clean up. 2794 * NOTE:`cur_scp->proc' and `cur_scp->smode.mode' 2795 * are not reset here yet; they will be cleared later. 2796 */ 2797 DPRINTF(5, ("cur_scp controlling process %d died, ", cur_scp->pid)); 2798 if (cur_scp->status & SWITCH_WAIT_REL) { 2799 /* 2800 * Force the previous switch to finish, but return now 2801 * with error. 2802 * 2803 */ 2804 DPRINTF(5, ("reset WAIT_REL, ")); 2805 finish_vt_rel(cur_scp, TRUE); 2806 DPRINTF(5, ("finishing previous switch\n")); 2807 return EINVAL; 2808 } else if (cur_scp->status & SWITCH_WAIT_ACQ) { 2809 /* let's assume screen switch has been completed. */ 2810 DPRINTF(5, ("reset WAIT_ACQ, ")); 2811 finish_vt_acq(cur_scp); 2812 } else { 2813 /* 2814 * We are in between screen release and acquisition, and 2815 * reached here via scgetc() or scrn_timer() which has 2816 * interrupted exchange_scr(). Don't do anything stupid. 2817 */ 2818 DPRINTF(5, ("waiting nothing, ")); 2819 } 2820 } else { 2821 /* 2822 * The controlling process is alive, but not responding... 2823 * It is either buggy or it may be just taking time. 2824 * The following code is a gross kludge to cope with this 2825 * problem for which there is no clean solution. XXX 2826 */ 2827 if (cur_scp->status & SWITCH_WAIT_REL) { 2828 switch (sc->switch_in_progress++) { 2829 case 1: 2830 break; 2831 case 2: 2832 DPRINTF(5, ("sending relsig again, ")); 2833 signal_vt_rel(cur_scp); 2834 break; 2835 case 3: 2836 break; 2837 case 4: 2838 default: 2839 /* 2840 * Act as if the controlling program returned 2841 * VT_FALSE. 2842 * 2843 */ 2844 DPRINTF(5, ("force reset WAIT_REL, ")); 2845 finish_vt_rel(cur_scp, FALSE); 2846 DPRINTF(5, ("act as if VT_FALSE was seen\n")); 2847 return EINVAL; 2848 } 2849 } else if (cur_scp->status & SWITCH_WAIT_ACQ) { 2850 switch (sc->switch_in_progress++) { 2851 case 1: 2852 break; 2853 case 2: 2854 DPRINTF(5, ("sending acqsig again, ")); 2855 signal_vt_acq(cur_scp); 2856 break; 2857 case 3: 2858 break; 2859 case 4: 2860 default: 2861 /* clear the flag and finish the previous switch */ 2862 DPRINTF(5, ("force reset WAIT_ACQ, ")); 2863 finish_vt_acq(cur_scp); 2864 break; 2865 } 2866 } 2867 } 2868 } 2869 2870 /* 2871 * Return error if an invalid argument is given, or vty switch 2872 * is still in progress. 2873 */ 2874 if ((next_scr < sc->first_vty) || (next_scr >= sc->first_vty + sc->vtys) 2875 || sc->switch_in_progress) { 2876 sc_bell(cur_scp, bios_value.bell_pitch, BELL_DURATION); 2877 DPRINTF(5, ("error 1\n")); 2878 return EINVAL; 2879 } 2880 2881 /* 2882 * Don't allow switching away from the graphics mode vty 2883 * if the switch mode is VT_AUTO, unless the next vty is the same 2884 * as the current or the current vty has been closed (but showing). 2885 */ 2886 tp = VIRTUAL_TTY(sc, cur_scp->index); 2887 if ((cur_scp->index != next_scr) 2888 && ISTTYOPEN(tp) 2889 && (cur_scp->smode.mode == VT_AUTO) 2890 && ISGRAPHSC(cur_scp)) { 2891 sc_bell(cur_scp, bios_value.bell_pitch, BELL_DURATION); 2892 DPRINTF(5, ("error, graphics mode\n")); 2893 return EINVAL; 2894 } 2895 2896 /* 2897 * Is the wanted vty open? Don't allow switching to a closed vty. 2898 * If we are in DDB, don't switch to a vty in the VT_PROCESS mode. 2899 * Note that we always allow the user to switch to the kernel 2900 * console even if it is closed. 2901 */ 2902 if ((sc_console == NULL) || (next_scr != sc_console->index)) { 2903 tp = VIRTUAL_TTY(sc, next_scr); 2904 if (!ISTTYOPEN(tp)) { 2905 sc_bell(cur_scp, bios_value.bell_pitch, BELL_DURATION); 2906 DPRINTF(5, ("error 2, requested vty isn't open!\n")); 2907 return EINVAL; 2908 } 2909 if ((debugger > 0) && (SC_STAT(tp->t_dev)->smode.mode == VT_PROCESS)) { 2910 DPRINTF(5, ("error 3, requested vty is in the VT_PROCESS mode\n")); 2911 return EINVAL; 2912 } 2913 } 2914 2915 /* this is the start of vty switching process... */ 2916 ++sc->switch_in_progress; 2917 sc->delayed_next_scr = 0; 2918 sc->old_scp = cur_scp; 2919 sc->new_scp = SC_STAT(SC_DEV(sc, next_scr)); 2920 if (sc->new_scp == sc->old_scp) { 2921 sc->switch_in_progress = 0; 2922 wakeup((caddr_t)&sc->new_scp->smode); 2923 DPRINTF(5, ("switch done (new == old)\n")); 2924 return 0; 2925 } 2926 2927 /* has controlling process died? */ 2928 vt_proc_alive(sc->old_scp); 2929 vt_proc_alive(sc->new_scp); 2930 2931 /* wait for the controlling process to release the screen, if necessary */ 2932 if (signal_vt_rel(sc->old_scp)) { 2933 return 0; 2934 } 2935 2936 /* go set up the new vty screen */ 2937 exchange_scr(sc); 2938 2939 /* wake up processes waiting for this vty */ 2940 wakeup((caddr_t)&sc->cur_scp->smode); 2941 2942 /* wait for the controlling process to acknowledge, if necessary */ 2943 if (signal_vt_acq(sc->cur_scp)) { 2944 return 0; 2945 } 2946 2947 sc->switch_in_progress = 0; 2948 if (sc->unit == sc_console_unit && !sc->fb_blanked) 2949 cons_unavail = FALSE; 2950 DPRINTF(5, ("switch done\n")); 2951 2952 return 0; 2953 } 2954 2955 static void 2956 do_switch_scr(sc_softc_t *sc) 2957 { 2958 lwkt_gettoken(&vga_token); 2959 vt_proc_alive(sc->new_scp); 2960 2961 exchange_scr(sc); 2962 /* sc->cur_scp == sc->new_scp */ 2963 wakeup((caddr_t)&sc->cur_scp->smode); 2964 2965 /* wait for the controlling process to acknowledge, if necessary */ 2966 if (!signal_vt_acq(sc->cur_scp)) { 2967 sc->switch_in_progress = 0; 2968 if (sc->unit == sc_console_unit && !sc->fb_blanked) 2969 cons_unavail = FALSE; 2970 } 2971 lwkt_reltoken(&vga_token); 2972 } 2973 2974 static int 2975 vt_proc_alive(scr_stat *scp) 2976 { 2977 lwkt_gettoken(&vga_token); 2978 if (scp->proc) { 2979 if (scp->proc == pfindn(scp->pid)) { 2980 lwkt_reltoken(&vga_token); 2981 return TRUE; 2982 } 2983 scp->proc = NULL; 2984 scp->smode.mode = VT_AUTO; 2985 DPRINTF(5, ("vt controlling process %d died\n", scp->pid)); 2986 } 2987 lwkt_reltoken(&vga_token); 2988 return FALSE; 2989 } 2990 2991 static int 2992 signal_vt_rel(scr_stat *scp) 2993 { 2994 struct proc *p; 2995 2996 lwkt_gettoken(&vga_token); 2997 if (scp->smode.mode != VT_PROCESS) { 2998 lwkt_reltoken(&vga_token); 2999 return FALSE; 3000 } 3001 scp->status |= SWITCH_WAIT_REL; 3002 p = scp->proc; 3003 PHOLD(p); 3004 ksignal(p, scp->smode.relsig); 3005 PRELE(p); 3006 DPRINTF(5, ("sending relsig to %d\n", scp->pid)); 3007 lwkt_reltoken(&vga_token); 3008 3009 return TRUE; 3010 } 3011 3012 static int 3013 signal_vt_acq(scr_stat *scp) 3014 { 3015 struct proc *p; 3016 3017 lwkt_gettoken(&vga_token); 3018 if (scp->smode.mode != VT_PROCESS) { 3019 lwkt_reltoken(&vga_token); 3020 return FALSE; 3021 } 3022 if (scp->sc->unit == sc_console_unit) 3023 cons_unavail = TRUE; 3024 scp->status |= SWITCH_WAIT_ACQ; 3025 p = scp->proc; 3026 PHOLD(p); 3027 ksignal(p, scp->smode.acqsig); 3028 PRELE(p); 3029 DPRINTF(5, ("sending acqsig to %d\n", scp->pid)); 3030 lwkt_reltoken(&vga_token); 3031 3032 return TRUE; 3033 } 3034 3035 static int 3036 finish_vt_rel(scr_stat *scp, int release) 3037 { 3038 lwkt_gettoken(&vga_token); 3039 if (scp == scp->sc->old_scp && scp->status & SWITCH_WAIT_REL) { 3040 scp->status &= ~SWITCH_WAIT_REL; 3041 if (release) 3042 do_switch_scr(scp->sc); 3043 else 3044 scp->sc->switch_in_progress = 0; 3045 lwkt_reltoken(&vga_token); 3046 return 0; 3047 } 3048 lwkt_reltoken(&vga_token); 3049 return EINVAL; 3050 } 3051 3052 static int 3053 finish_vt_acq(scr_stat *scp) 3054 { 3055 lwkt_gettoken(&vga_token); 3056 if (scp == scp->sc->new_scp && scp->status & SWITCH_WAIT_ACQ) { 3057 scp->status &= ~SWITCH_WAIT_ACQ; 3058 scp->sc->switch_in_progress = 0; 3059 lwkt_reltoken(&vga_token); 3060 return 0; 3061 } 3062 lwkt_reltoken(&vga_token); 3063 return EINVAL; 3064 } 3065 3066 static void 3067 exchange_scr(sc_softc_t *sc) 3068 { 3069 scr_stat *scp; 3070 3071 lwkt_gettoken(&vga_token); 3072 /* save the current state of video and keyboard */ 3073 sc_move_cursor(sc->old_scp, sc->old_scp->xpos, sc->old_scp->ypos); 3074 if (!ISGRAPHSC(sc->old_scp)) 3075 sc_remove_cursor_image(sc->old_scp); 3076 if (sc->old_scp->kbd_mode == K_XLATE) 3077 save_kbd_state(sc->old_scp, TRUE); 3078 3079 /* set up the video for the new screen */ 3080 scp = sc->cur_scp = sc->new_scp; 3081 if (sc->old_scp->mode != scp->mode || ISUNKNOWNSC(sc->old_scp)) 3082 set_mode(scp); 3083 else if (sc->adp != NULL) 3084 sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, scp->xsize, scp->ysize, 3085 (void *)sc->adp->va_window, FALSE); 3086 scp->status |= MOUSE_HIDDEN; 3087 sc_update_render(scp); /* Switch to kms renderer if necessary */ 3088 sc_move_cursor(scp, scp->xpos, scp->ypos); 3089 if (!ISGRAPHSC(scp)) 3090 sc_set_cursor_image(scp); 3091 if (sc->fbi == NULL && ISGRAPHSC(sc->old_scp)) 3092 load_palette(sc->adp, sc->palette); 3093 if (!ISGRAPHSC(scp) || sc->fbi == NULL) 3094 sc_set_border(scp, scp->border); 3095 3096 /* set up the keyboard for the new screen */ 3097 if (sc->old_scp->kbd_mode != scp->kbd_mode) 3098 kbd_ioctl(sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode); 3099 update_kbd_state(scp, scp->status, LOCK_MASK, TRUE); 3100 3101 mark_all(scp); 3102 3103 /* 3104 * Restore DRM framebuffer console mode if necessary. 3105 * Especially avoid modesetting when switching to a vt which is in 3106 * graphics mode, because the fb_set_par() from the taskqueue thread 3107 * might race with the modesetting ioctl from the userland application. 3108 */ 3109 if (!ISTEXTSC(sc->old_scp) && 3110 sc->fbi != NULL && sc->fbi->fbops.fb_set_par != NULL && 3111 sc->fb_set_par_task != NULL) { 3112 taskqueue_enqueue(taskqueue_thread[0], sc->fb_set_par_task); 3113 } 3114 3115 lwkt_reltoken(&vga_token); 3116 } 3117 3118 static void 3119 sc_puts(scr_stat *scp, u_char *buf, int len) 3120 { 3121 #if NSPLASH > 0 3122 /* make screensaver happy */ 3123 if (!sticky_splash && scp == scp->sc->cur_scp) 3124 run_scrn_saver = FALSE; 3125 #endif 3126 3127 if (scp->tsw) 3128 (*scp->tsw->te_puts)(scp, buf, len); 3129 3130 if (scp->sc->delayed_next_scr) 3131 sc_switch_scr(scp->sc, scp->sc->delayed_next_scr - 1); 3132 3133 } 3134 3135 void 3136 sc_draw_cursor_image(scr_stat *scp) 3137 { 3138 /* assert(scp == scp->sc->cur_scp); */ 3139 atomic_add_int(&scp->sc->videoio_in_progress, 1); 3140 (*scp->rndr->draw_cursor)(scp, scp->cursor_pos, 3141 scp->sc->flags & SC_BLINK_CURSOR, TRUE, 3142 sc_inside_cutmark(scp, scp->cursor_pos)); 3143 scp->cursor_oldpos = scp->cursor_pos; 3144 atomic_add_int(&scp->sc->videoio_in_progress, -1); 3145 } 3146 3147 void 3148 sc_remove_cursor_image(scr_stat *scp) 3149 { 3150 /* assert(scp == scp->sc->cur_scp); */ 3151 atomic_add_int(&scp->sc->videoio_in_progress, 1); 3152 (*scp->rndr->draw_cursor)(scp, scp->cursor_oldpos, 3153 scp->sc->flags & SC_BLINK_CURSOR, FALSE, 3154 sc_inside_cutmark(scp, scp->cursor_oldpos)); 3155 atomic_add_int(&scp->sc->videoio_in_progress, -1); 3156 } 3157 3158 static void 3159 update_cursor_image(scr_stat *scp) 3160 { 3161 int blink; 3162 3163 if (scp->sc->flags & SC_CHAR_CURSOR) { 3164 scp->cursor_base = imax(0, scp->sc->cursor_base); 3165 scp->cursor_height = imin(scp->sc->cursor_height, scp->font_height); 3166 } else { 3167 scp->cursor_base = 0; 3168 scp->cursor_height = scp->font_height; 3169 } 3170 blink = scp->sc->flags & SC_BLINK_CURSOR; 3171 3172 /* assert(scp == scp->sc->cur_scp); */ 3173 atomic_add_int(&scp->sc->videoio_in_progress, 1); 3174 (*scp->rndr->draw_cursor)(scp, scp->cursor_oldpos, blink, FALSE, 3175 sc_inside_cutmark(scp, scp->cursor_pos)); 3176 (*scp->rndr->set_cursor)(scp, scp->cursor_base, scp->cursor_height, blink); 3177 (*scp->rndr->draw_cursor)(scp, scp->cursor_pos, blink, TRUE, 3178 sc_inside_cutmark(scp, scp->cursor_pos)); 3179 atomic_add_int(&scp->sc->videoio_in_progress, -1); 3180 } 3181 3182 void 3183 sc_set_cursor_image(scr_stat *scp) 3184 { 3185 if (scp->sc->flags & SC_CHAR_CURSOR) { 3186 scp->cursor_base = imax(0, scp->sc->cursor_base); 3187 scp->cursor_height = imin(scp->sc->cursor_height, scp->font_height); 3188 } else { 3189 scp->cursor_base = 0; 3190 scp->cursor_height = scp->font_height; 3191 } 3192 3193 /* assert(scp == scp->sc->cur_scp); */ 3194 atomic_add_int(&scp->sc->videoio_in_progress, 1); 3195 (*scp->rndr->set_cursor)(scp, scp->cursor_base, scp->cursor_height, 3196 scp->sc->flags & SC_BLINK_CURSOR); 3197 atomic_add_int(&scp->sc->videoio_in_progress, -1); 3198 } 3199 3200 static void 3201 scinit(int unit, int flags) 3202 { 3203 /* 3204 * When syscons is being initialized as the kernel console, malloc() 3205 * is not yet functional, because various kernel structures has not been 3206 * fully initialized yet. Therefore, we need to declare the following 3207 * static buffers for the console. This is less than ideal, 3208 * but is necessry evil for the time being. XXX 3209 */ 3210 static scr_stat main_console; 3211 static u_short sc_buffer[2*ROW*2*COL]; /* XXX */ 3212 #ifndef SC_NO_FONT_LOADING 3213 static u_char font_8[256*8]; 3214 static u_char font_14[256*14]; 3215 static u_char font_16[256*16]; 3216 #endif 3217 3218 sc_softc_t *sc; 3219 scr_stat *scp; 3220 video_adapter_t *adp; 3221 char tbuf[MAKEDEV_MINNBUF]; 3222 int col; 3223 int row; 3224 int i; 3225 3226 /* one time initialization */ 3227 if (init_done == COLD) 3228 sc_get_bios_values(&bios_value); 3229 init_done = WARM; 3230 3231 /* 3232 * Allocate resources. Even if we are being called for the second 3233 * time, we must allocate them again, because they might have 3234 * disappeared... 3235 */ 3236 sc = sc_get_softc(unit, flags & SC_KERNEL_CONSOLE); 3237 adp = NULL; 3238 if (flags & SC_EFI_FB) { 3239 /* Don't replace already registered drm framebuffer here */ 3240 if (sc->fbi == NULL) { 3241 sc->fbi = &efi_fb_info; 3242 sc->fbi_generation++; 3243 } 3244 } else if (sc->adapter >= 0) { 3245 vid_release(sc->adp, (void *)&sc->adapter); 3246 adp = sc->adp; 3247 } 3248 sc->adp = NULL; 3249 if (sc->keyboard >= 0) { 3250 DPRINTF(5, ("sc%d: releasing kbd%d\n", unit, sc->keyboard)); 3251 i = kbd_release(sc->kbd, (void *)&sc->keyboard); 3252 DPRINTF(5, ("sc%d: kbd_release returned %d\n", unit, i)); 3253 if (sc->kbd != NULL) { 3254 DPRINTF(5, ("sc%d: kbd != NULL!, index:%d, unit:%d, flags:0x%x\n", 3255 unit, sc->kbd->kb_index, sc->kbd->kb_unit, sc->kbd->kb_flags)); 3256 } 3257 sc->kbd = NULL; 3258 } 3259 if (!(flags & SC_EFI_FB)) { 3260 sc->adapter = vid_allocate("*", unit, (void *)&sc->adapter); 3261 sc->adp = vid_get_adapter(sc->adapter); 3262 /* assert((sc->adapter >= 0) && (sc->adp != NULL)) */ 3263 } 3264 sc->keyboard = sc_allocate_keyboard(sc, unit); 3265 DPRINTF(1, ("sc%d: keyboard %d\n", unit, sc->keyboard)); 3266 sc->kbd = kbd_get_keyboard(sc->keyboard); 3267 if (sc->kbd != NULL) { 3268 DPRINTF(1, ("sc%d: kbd index:%d, unit:%d, flags:0x%x\n", 3269 unit, sc->kbd->kb_index, sc->kbd->kb_unit, sc->kbd->kb_flags)); 3270 } 3271 3272 if (!(sc->flags & SC_INIT_DONE) || (adp != sc->adp)) { 3273 3274 if (sc->fbi != NULL) 3275 sc->initial_mode = 0; 3276 else 3277 sc->initial_mode = sc->adp->va_initial_mode; 3278 3279 #ifndef SC_NO_FONT_LOADING 3280 if (flags & SC_KERNEL_CONSOLE) { 3281 sc->font_8 = font_8; 3282 sc->font_14 = font_14; 3283 sc->font_16 = font_16; 3284 } else if (sc->font_8 == NULL) { 3285 /* assert(sc_malloc) */ 3286 sc->font_8 = kmalloc(sizeof(font_8), M_SYSCONS, M_WAITOK); 3287 sc->font_14 = kmalloc(sizeof(font_14), M_SYSCONS, M_WAITOK); 3288 sc->font_16 = kmalloc(sizeof(font_16), M_SYSCONS, M_WAITOK); 3289 } 3290 #endif 3291 3292 if (sc->fbi != NULL) { 3293 col = 0; 3294 row = 0; 3295 } else { 3296 lwkt_gettoken(&vga_token); 3297 /* extract the hw cursor location and hide the cursor for now */ 3298 (*vidsw[sc->adapter]->read_hw_cursor)(sc->adp, &col, &row); 3299 (*vidsw[sc->adapter]->set_hw_cursor)(sc->adp, -1, -1); 3300 lwkt_reltoken(&vga_token); 3301 } 3302 3303 /* set up the first console */ 3304 sc->first_vty = unit*MAXCONS; 3305 sc->vtys = MAXCONS; /* XXX: should be configurable */ 3306 if (flags & SC_KERNEL_CONSOLE) { 3307 scp = &main_console; 3308 sc->console_scp = scp; 3309 init_scp(sc, sc->first_vty, scp); 3310 sc_vtb_init(&scp->vtb, VTB_MEMORY, scp->xsize, scp->ysize, 3311 (void *)sc_buffer, FALSE); 3312 if (sc_init_emulator(scp, SC_DFLT_TERM)) 3313 sc_init_emulator(scp, "*"); 3314 (*scp->tsw->te_default_attr)(scp, 3315 kernel_default.std_color, 3316 kernel_default.rev_color); 3317 } else { 3318 /* assert(sc_malloc) */ 3319 sc->dev = kmalloc(sizeof(cdev_t)*sc->vtys, M_SYSCONS, M_WAITOK | M_ZERO); 3320 3321 sc->dev[0] = make_dev(&sc_ops, unit*MAXCONS, UID_ROOT, 3322 GID_WHEEL, 0600, "ttyv%s", 3323 makedev_unit_b32(tbuf, unit * MAXCONS)); 3324 3325 ttymalloc(&sc->dev[0]->si_tty); 3326 scp = alloc_scp(sc, sc->first_vty); 3327 sc->dev[0]->si_drv1 = scp; 3328 } 3329 sc->cur_scp = scp; 3330 3331 /* copy screen to temporary buffer */ 3332 if (scp->sc->fbi == NULL) { 3333 sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, scp->xsize, scp->ysize, 3334 (void *)scp->sc->adp->va_window, FALSE); 3335 if (ISTEXTSC(scp)) 3336 sc_vtb_copy(&scp->scr, 0, &scp->vtb, 0, scp->xsize*scp->ysize); 3337 } 3338 3339 /* move cursors to the initial positions */ 3340 if (col >= scp->xsize) 3341 col = 0; 3342 if (row >= scp->ysize) 3343 row = scp->ysize - 1; 3344 scp->xpos = col; 3345 scp->ypos = row; 3346 if (sc->fbi != NULL) { 3347 scp->cursor_pos = 0; 3348 sc->cursor_base = 0; 3349 sc->cursor_height = scp->font_height; 3350 } else { 3351 scp->cursor_pos = scp->cursor_oldpos = row*scp->xsize + col; 3352 if (bios_value.cursor_end < scp->font_height) 3353 sc->cursor_base = scp->font_height - bios_value.cursor_end - 1; 3354 else 3355 sc->cursor_base = 0; 3356 i = bios_value.cursor_end - bios_value.cursor_start + 1; 3357 sc->cursor_height = imin(i, scp->font_height); 3358 } 3359 #ifndef SC_NO_SYSMOUSE 3360 sc_mouse_move(scp, scp->xpixel/2, scp->ypixel/2); 3361 #endif 3362 if (!ISGRAPHSC(scp)) { 3363 sc_set_cursor_image(scp); 3364 sc_draw_cursor_image(scp); 3365 /* If framebuffer vaddr is still 0, we can't draw the border yet */ 3366 if (scp->sc->fbi != NULL && scp->sc->fbi->vaddr != 0) { 3367 sc_filled_border = TRUE; 3368 sc_set_border(scp, scp->border); 3369 } 3370 } 3371 3372 /* save font and palette */ 3373 #ifndef SC_NO_FONT_LOADING 3374 sc->fonts_loaded = 0; 3375 #ifdef SC_DFLT_FONT 3376 bcopy(dflt_font_8, sc->font_8, sizeof(dflt_font_8)); 3377 bcopy(dflt_font_14, sc->font_14, sizeof(dflt_font_14)); 3378 bcopy(dflt_font_16, sc->font_16, sizeof(dflt_font_16)); 3379 sc->fonts_loaded = FONT_16 | FONT_14 | FONT_8; 3380 #endif /* SC_DFLT_FONT */ 3381 if (sc->adp != NULL && ISFONTAVAIL(sc->adp->va_flags)) { 3382 #ifdef SC_DFLT_FONT 3383 if (scp->font_height < 14) { 3384 sc_load_font(scp, 0, 8, sc->font_8, 0, 256); 3385 } else if (scp->font_height >= 16) { 3386 sc_load_font(scp, 0, 16, sc->font_16, 0, 256); 3387 } else { 3388 sc_load_font(scp, 0, 14, sc->font_14, 0, 256); 3389 } 3390 #else /* !SC_DFLT_FONT */ 3391 if (scp->font_height < 14) { 3392 sc_save_font(scp, 0, 8, sc->font_8, 0, 256); 3393 sc->fonts_loaded = FONT_8; 3394 } else if (scp->font_height >= 16) { 3395 sc_save_font(scp, 0, 16, sc->font_16, 0, 256); 3396 sc->fonts_loaded = FONT_16; 3397 } else { 3398 sc_save_font(scp, 0, 14, sc->font_14, 0, 256); 3399 sc->fonts_loaded = FONT_14; 3400 } 3401 #endif /* SC_DFLT_FONT */ 3402 /* FONT KLUDGE: always use the font page #0. XXX */ 3403 sc_show_font(scp, 0); 3404 } 3405 #endif /* !SC_NO_FONT_LOADING */ 3406 3407 if (!(flags & SC_EFI_FB)) 3408 save_palette(sc->adp, sc->palette); 3409 3410 #if NSPLASH > 0 3411 if (!(sc->flags & SC_SPLASH_SCRN) && (flags & SC_KERNEL_CONSOLE)) { 3412 /* we are ready to put up the splash image! */ 3413 splash_init(sc->adp, scsplash_callback, sc); 3414 sc->flags |= SC_SPLASH_SCRN; 3415 } 3416 #endif /* NSPLASH */ 3417 } 3418 3419 /* the rest is not necessary, if we have done it once */ 3420 if (sc->flags & SC_INIT_DONE) { 3421 return; 3422 } 3423 3424 /* initialize mapscrn arrays to a one to one map */ 3425 for (i = 0; i < sizeof(sc->scr_map); i++) 3426 sc->scr_map[i] = sc->scr_rmap[i] = i; 3427 3428 sc->flags |= SC_INIT_DONE; 3429 } 3430 3431 #if 0 3432 static void 3433 scterm(int unit, int flags) 3434 { 3435 sc_softc_t *sc; 3436 scr_stat *scp; 3437 3438 sc = sc_get_softc(unit, flags & SC_KERNEL_CONSOLE); 3439 if (sc == NULL) 3440 return; /* shouldn't happen */ 3441 3442 lwkt_gettoken(&vga_token); 3443 #if NSPLASH > 0 3444 /* this console is no longer available for the splash screen */ 3445 if (sc->flags & SC_SPLASH_SCRN) { 3446 splash_term(sc->adp); 3447 sc->flags &= ~SC_SPLASH_SCRN; 3448 } 3449 #endif /* NSPLASH */ 3450 3451 #if 0 /* XXX */ 3452 /* move the hardware cursor to the upper-left corner */ 3453 (*vidsw[sc->adapter]->set_hw_cursor)(sc->adp, 0, 0); 3454 #endif 3455 3456 /* release the keyboard and the video card */ 3457 if (sc->keyboard >= 0) 3458 kbd_release(sc->kbd, &sc->keyboard); 3459 if (sc->adapter >= 0) 3460 vid_release(sc->adp, &sc->adapter); 3461 3462 /* 3463 * Stop the terminal emulator, if any. If operating on the 3464 * kernel console sc->dev may not be setup yet. 3465 */ 3466 if (flags & SC_KERNEL_CONSOLE) 3467 scp = sc->console_scp; 3468 else 3469 scp = SC_STAT(sc->dev[0]); 3470 if (scp->tsw) 3471 (*scp->tsw->te_term)(scp, &scp->ts); 3472 if (scp->ts != NULL) 3473 kfree(scp->ts, M_SYSCONS); 3474 3475 /* clear the structure */ 3476 if (!(flags & SC_KERNEL_CONSOLE)) { 3477 /* XXX: We need delete_dev() for this */ 3478 kfree(sc->dev, M_SYSCONS); 3479 #if 0 3480 /* XXX: We need a ttyunregister for this */ 3481 /* XXX: do not race tty token access */ 3482 kfree(sc->tty, M_SYSCONS); 3483 #endif 3484 #ifndef SC_NO_FONT_LOADING 3485 kfree(sc->font_8, M_SYSCONS); 3486 kfree(sc->font_14, M_SYSCONS); 3487 kfree(sc->font_16, M_SYSCONS); 3488 #endif 3489 /* XXX vtb, history */ 3490 } 3491 bzero(sc, sizeof(*sc)); 3492 sc->keyboard = -1; 3493 sc->adapter = -1; 3494 lwkt_reltoken(&vga_token); 3495 } 3496 #endif 3497 3498 static void 3499 scshutdown(void *arg, int howto) 3500 { 3501 /* assert(sc_console != NULL) */ 3502 3503 lwkt_gettoken(&vga_token); 3504 syscons_lock(); 3505 sc_touch_scrn_saver(); 3506 if (!cold && sc_console 3507 && sc_console->sc->cur_scp->smode.mode == VT_AUTO 3508 && sc_console->smode.mode == VT_AUTO) { 3509 sc_switch_scr(sc_console->sc, sc_console->index); 3510 } 3511 shutdown_in_progress = TRUE; 3512 syscons_unlock(); 3513 lwkt_reltoken(&vga_token); 3514 } 3515 3516 int 3517 sc_clean_up(scr_stat *scp, int need_unlock) 3518 { 3519 #if NSPLASH > 0 3520 int error; 3521 #endif /* NSPLASH */ 3522 3523 lwkt_gettoken(&vga_token); 3524 if (scp->sc->flags & SC_SCRN_BLANKED) { 3525 sc_touch_scrn_saver(); 3526 #if NSPLASH > 0 3527 if ((error = wait_scrn_saver_stop(scp->sc, need_unlock))) { 3528 lwkt_reltoken(&vga_token); 3529 return error; 3530 } 3531 #endif /* NSPLASH */ 3532 } 3533 scp->status |= MOUSE_HIDDEN; 3534 sc_remove_mouse_image(scp); 3535 sc_remove_cutmarking(scp); 3536 lwkt_reltoken(&vga_token); 3537 return 0; 3538 } 3539 3540 void 3541 sc_alloc_scr_buffer(scr_stat *scp, int wait, int discard) 3542 { 3543 sc_vtb_t new; 3544 sc_vtb_t old; 3545 3546 lwkt_gettoken(&vga_token); 3547 old = scp->vtb; 3548 sc_vtb_init(&new, VTB_MEMORY, scp->xsize, scp->ysize, NULL, wait); 3549 if (!discard && (old.vtb_flags & VTB_VALID)) { 3550 /* retain the current cursor position and buffer contants */ 3551 scp->cursor_oldpos = scp->cursor_pos; 3552 /* 3553 * This works only if the old buffer has the same size as or larger 3554 * than the new one. XXX 3555 */ 3556 sc_vtb_copy(&old, 0, &new, 0, scp->xsize*scp->ysize); 3557 scp->vtb = new; 3558 } else { 3559 scp->vtb = new; 3560 sc_vtb_destroy(&old); 3561 } 3562 3563 #ifndef SC_NO_SYSMOUSE 3564 /* move the mouse cursor at the center of the screen */ 3565 sc_mouse_move(scp, scp->xpixel / 2, scp->ypixel / 2); 3566 #endif 3567 lwkt_reltoken(&vga_token); 3568 } 3569 3570 static scr_stat * 3571 alloc_scp(sc_softc_t *sc, int vty) 3572 { 3573 scr_stat *scp; 3574 3575 /* assert(sc_malloc) */ 3576 3577 scp = kmalloc(sizeof(scr_stat), M_SYSCONS, M_WAITOK); 3578 init_scp(sc, vty, scp); 3579 3580 sc_alloc_scr_buffer(scp, TRUE, TRUE); 3581 if (sc_init_emulator(scp, SC_DFLT_TERM)) 3582 sc_init_emulator(scp, "*"); 3583 3584 #ifndef SC_NO_CUTPASTE 3585 sc_alloc_cut_buffer(scp, TRUE); 3586 #endif 3587 3588 #ifndef SC_NO_HISTORY 3589 sc_alloc_history_buffer(scp, 0, 0, TRUE); 3590 #endif 3591 return scp; 3592 } 3593 3594 /* 3595 * NOTE: Must be called with vga_token held. 3596 */ 3597 static void 3598 init_scp(sc_softc_t *sc, int vty, scr_stat *scp) 3599 { 3600 video_info_t info; 3601 3602 bzero(scp, sizeof(*scp)); 3603 3604 scp->index = vty; 3605 scp->sc = sc; 3606 scp->status = 0; 3607 scp->mode = sc->initial_mode; 3608 scp->fbi_generation = sc->fbi_generation; 3609 callout_init_lk(&scp->blink_screen_ch, &syscons_blink_lk); 3610 if (scp->sc->fbi == NULL) { 3611 lwkt_gettoken(&vga_token); 3612 (*vidsw[sc->adapter]->get_info)(sc->adp, scp->mode, &info); 3613 lwkt_reltoken(&vga_token); 3614 } 3615 if (scp->sc->fbi != NULL) { 3616 scp->xpixel = sc->fbi->width; 3617 scp->ypixel = sc->fbi->height; 3618 scp->font_width = 8; 3619 scp->font_height = 16; 3620 3621 /* The first vty uses a statically allocated 160x50 buffer */ 3622 if (vty == sc->first_vty) 3623 sc_font_scale(scp, 2*COL, 2*ROW); 3624 else 3625 sc_font_scale(scp, 0, 0); 3626 3627 #ifndef SC_NO_FONT_LOADING 3628 scp->font = sc->font_16; 3629 #else 3630 scp->font = NULL; 3631 #endif 3632 } else if (info.vi_flags & V_INFO_GRAPHICS) { 3633 scp->status |= GRAPHICS_MODE; 3634 scp->xpixel = info.vi_width; 3635 scp->ypixel = info.vi_height; 3636 scp->xsize = info.vi_width/8; 3637 scp->ysize = info.vi_height/info.vi_cheight; 3638 scp->font_height = 0; 3639 scp->font_width = 0; 3640 scp->font = NULL; 3641 } else { 3642 scp->xsize = info.vi_width; 3643 scp->ysize = info.vi_height; 3644 scp->xpixel = scp->xsize*8; 3645 scp->ypixel = scp->ysize*info.vi_cheight; 3646 scp->font_width = 8; 3647 if (info.vi_cheight < 14) { 3648 scp->font_height = 8; 3649 #ifndef SC_NO_FONT_LOADING 3650 scp->font = sc->font_8; 3651 #else 3652 scp->font = NULL; 3653 #endif 3654 } else if (info.vi_cheight >= 16) { 3655 scp->font_height = 16; 3656 #ifndef SC_NO_FONT_LOADING 3657 scp->font = sc->font_16; 3658 #else 3659 scp->font = NULL; 3660 #endif 3661 } else { 3662 scp->font_height = 14; 3663 #ifndef SC_NO_FONT_LOADING 3664 scp->font = sc->font_14; 3665 #else 3666 scp->font = NULL; 3667 #endif 3668 } 3669 } 3670 scp->xoff = scp->yoff = 0; 3671 scp->xpos = scp->ypos = 0; 3672 sc_vtb_init(&scp->vtb, VTB_MEMORY, 0, 0, NULL, FALSE); 3673 sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, 0, 0, NULL, FALSE); 3674 scp->start = scp->xsize * scp->ysize - 1; 3675 scp->end = 0; 3676 scp->tsw = NULL; 3677 scp->ts = NULL; 3678 scp->rndr = NULL; 3679 scp->border = SC_BORDER_COLOR; 3680 scp->cursor_base = sc->cursor_base; 3681 scp->cursor_height = imin(sc->cursor_height, scp->font_height); 3682 scp->mouse_cut_start = scp->xsize * scp->ysize; 3683 scp->mouse_cut_end = -1; 3684 scp->mouse_signal = 0; 3685 scp->mouse_pid = 0; 3686 scp->mouse_proc = NULL; 3687 scp->kbd_mode = K_XLATE; 3688 scp->bell_pitch = bios_value.bell_pitch; 3689 scp->bell_duration = BELL_DURATION; 3690 scp->status |= (bios_value.shift_state & NLKED); 3691 scp->status |= CURSOR_ENABLED | MOUSE_HIDDEN; 3692 scp->pid = 0; 3693 scp->proc = NULL; 3694 scp->smode.mode = VT_AUTO; 3695 scp->history = NULL; 3696 scp->history_pos = 0; 3697 scp->history_size = 0; 3698 } 3699 3700 int 3701 sc_init_emulator(scr_stat *scp, char *name) 3702 { 3703 sc_term_sw_t *sw; 3704 sc_rndr_sw_t *rndr; 3705 void *p; 3706 int error; 3707 3708 if (name == NULL) /* if no name is given, use the current emulator */ 3709 sw = scp->tsw; 3710 else /* ...otherwise find the named emulator */ 3711 sw = sc_term_match(name); 3712 if (sw == NULL) { 3713 return EINVAL; 3714 } 3715 3716 rndr = NULL; 3717 if (strcmp(sw->te_renderer, "*") != 0) { 3718 rndr = sc_render_match(scp, sw->te_renderer, scp->model); 3719 } 3720 if (rndr == NULL && scp->sc->fbi != NULL) { 3721 rndr = sc_render_match(scp, "kms", scp->model); 3722 } 3723 if (rndr == NULL) { 3724 rndr = sc_render_match(scp, scp->sc->adp->va_name, scp->model); 3725 if (rndr == NULL) { 3726 return ENODEV; 3727 } 3728 } 3729 3730 if (sw == scp->tsw) { 3731 error = (*sw->te_init)(scp, &scp->ts, SC_TE_WARM_INIT); 3732 scp->rndr = rndr; 3733 sc_clear_screen(scp); 3734 /* assert(error == 0); */ 3735 return error; 3736 } 3737 3738 if (sc_malloc && (sw->te_size > 0)) 3739 p = kmalloc(sw->te_size, M_SYSCONS, M_NOWAIT); 3740 else 3741 p = NULL; 3742 error = (*sw->te_init)(scp, &p, SC_TE_COLD_INIT); 3743 if (error) { 3744 return error; 3745 } 3746 3747 if (scp->tsw) 3748 (*scp->tsw->te_term)(scp, &scp->ts); 3749 if (scp->ts != NULL) 3750 kfree(scp->ts, M_SYSCONS); 3751 scp->tsw = sw; 3752 scp->ts = p; 3753 scp->rndr = rndr; 3754 3755 /* XXX */ 3756 (*sw->te_default_attr)(scp, user_default.std_color, user_default.rev_color); 3757 sc_clear_screen(scp); 3758 3759 return 0; 3760 } 3761 3762 /* 3763 * scgetc(flags) - get character from keyboard. 3764 * If flags & SCGETC_CN, then avoid harmful side effects. 3765 * If flags & SCGETC_NONBLOCK, then wait until a key is pressed, else 3766 * return NOKEY if there is nothing there. 3767 */ 3768 static u_int 3769 scgetc(sc_softc_t *sc, u_int flags) 3770 { 3771 scr_stat *scp; 3772 #ifndef SC_NO_HISTORY 3773 struct tty *tp; 3774 #endif 3775 u_int c; 3776 int this_scr; 3777 int f; 3778 int i; 3779 3780 lwkt_gettoken(&vga_token); 3781 if (sc->kbd == NULL) { 3782 lwkt_reltoken(&vga_token); 3783 return NOKEY; 3784 } 3785 3786 next_code: 3787 #if 1 3788 /* I don't like this, but... XXX */ 3789 if (flags & SCGETC_CN) { 3790 syscons_lock(); 3791 sccnupdate(sc->cur_scp); 3792 syscons_unlock(); 3793 } 3794 #endif 3795 scp = sc->cur_scp; 3796 /* first see if there is something in the keyboard port */ 3797 for (;;) { 3798 c = kbd_read_char(sc->kbd, !(flags & SCGETC_NONBLOCK)); 3799 if (c == ERRKEY) { 3800 if (!(flags & SCGETC_CN)) 3801 sc_bell(scp, bios_value.bell_pitch, BELL_DURATION); 3802 } else if (c == NOKEY) { 3803 lwkt_reltoken(&vga_token); 3804 return c; 3805 } else { 3806 break; 3807 } 3808 } 3809 3810 /* make screensaver happy */ 3811 if (!(c & RELKEY)) 3812 sc_touch_scrn_saver(); 3813 3814 if (!(flags & SCGETC_CN)) 3815 /* do the /dev/random device a favour */ 3816 add_keyboard_randomness(c); 3817 3818 if (scp->kbd_mode != K_XLATE) { 3819 lwkt_reltoken(&vga_token); 3820 return KEYCHAR(c); 3821 } 3822 3823 /* if scroll-lock pressed allow history browsing */ 3824 if (!ISGRAPHSC(scp) && scp->history && scp->status & SLKED) { 3825 3826 scp->status &= ~CURSOR_ENABLED; 3827 sc_remove_cursor_image(scp); 3828 3829 #ifndef SC_NO_HISTORY 3830 if (!(scp->status & BUFFER_SAVED)) { 3831 scp->status |= BUFFER_SAVED; 3832 sc_hist_save(scp); 3833 } 3834 switch (c) { 3835 /* FIXME: key codes */ 3836 case SPCLKEY | FKEY | F(49): /* home key */ 3837 sc_remove_cutmarking(scp); 3838 sc_hist_home(scp); 3839 goto next_code; 3840 3841 case SPCLKEY | FKEY | F(57): /* end key */ 3842 sc_remove_cutmarking(scp); 3843 sc_hist_end(scp); 3844 goto next_code; 3845 3846 case SPCLKEY | FKEY | F(50): /* up arrow key */ 3847 sc_remove_cutmarking(scp); 3848 if (sc_hist_up_line(scp)) 3849 if (!(flags & SCGETC_CN)) 3850 sc_bell(scp, bios_value.bell_pitch, BELL_DURATION); 3851 goto next_code; 3852 3853 case SPCLKEY | FKEY | F(58): /* down arrow key */ 3854 sc_remove_cutmarking(scp); 3855 if (sc_hist_down_line(scp)) 3856 if (!(flags & SCGETC_CN)) 3857 sc_bell(scp, bios_value.bell_pitch, BELL_DURATION); 3858 goto next_code; 3859 3860 case SPCLKEY | FKEY | F(51): /* page up key */ 3861 sc_remove_cutmarking(scp); 3862 for (i=0; i<scp->ysize; i++) { 3863 if (sc_hist_up_line(scp)) { 3864 if (!(flags & SCGETC_CN)) 3865 sc_bell(scp, bios_value.bell_pitch, BELL_DURATION); 3866 break; 3867 } 3868 } 3869 goto next_code; 3870 3871 case SPCLKEY | FKEY | F(59): /* page down key */ 3872 sc_remove_cutmarking(scp); 3873 for (i=0; i<scp->ysize; i++) { 3874 if (sc_hist_down_line(scp)) { 3875 if (!(flags & SCGETC_CN)) 3876 sc_bell(scp, bios_value.bell_pitch, BELL_DURATION); 3877 break; 3878 } 3879 } 3880 goto next_code; 3881 } 3882 #endif /* SC_NO_HISTORY */ 3883 } 3884 3885 /* 3886 * Process and consume special keys here. Return a plain char code 3887 * or a char code with the META flag or a function key code. 3888 */ 3889 if (c & RELKEY) { 3890 /* key released */ 3891 /* goto next_code */ 3892 } else { 3893 /* key pressed */ 3894 if (c & SPCLKEY) { 3895 c &= ~SPCLKEY; 3896 switch (KEYCHAR(c)) { 3897 /* LOCKING KEYS */ 3898 case NLK: case CLK: case ALK: 3899 break; 3900 case SLK: 3901 kbd_ioctl(sc->kbd, KDGKBSTATE, (caddr_t)&f); 3902 if (f & SLKED) { 3903 scp->status |= SLKED; 3904 } else { 3905 if (scp->status & SLKED) { 3906 scp->status &= ~SLKED; 3907 #ifndef SC_NO_HISTORY 3908 if (scp->status & BUFFER_SAVED) { 3909 if (!sc_hist_restore(scp)) 3910 sc_remove_cutmarking(scp); 3911 scp->status &= ~BUFFER_SAVED; 3912 scp->status |= CURSOR_ENABLED; 3913 sc_draw_cursor_image(scp); 3914 } 3915 tp = VIRTUAL_TTY(sc, scp->index); 3916 if (ISTTYOPEN(tp)) 3917 scstart(tp); 3918 #endif 3919 } 3920 } 3921 break; 3922 3923 /* NON-LOCKING KEYS */ 3924 case NOP: 3925 case LSH: case RSH: case LCTR: case RCTR: 3926 case LALT: case RALT: case ASH: case META: 3927 break; 3928 3929 case BTAB: 3930 if (!(sc->flags & SC_SCRN_BLANKED)) { 3931 lwkt_reltoken(&vga_token); 3932 return c; 3933 } 3934 break; 3935 3936 case SPSC: 3937 #if NSPLASH > 0 3938 /* force activatation/deactivation of the screen saver */ 3939 if (!(sc->flags & SC_SCRN_BLANKED)) { 3940 run_scrn_saver = TRUE; 3941 sc->scrn_time_stamp -= scrn_blank_time; 3942 } 3943 if (cold) { 3944 /* 3945 * While devices are being probed, the screen saver need 3946 * to be invoked explictly. XXX 3947 */ 3948 if (sc->flags & SC_SCRN_BLANKED) { 3949 scsplash_stick(FALSE); 3950 stop_scrn_saver(sc, current_saver); 3951 } else { 3952 if (!ISGRAPHSC(scp)) { 3953 scsplash_stick(TRUE); 3954 (*current_saver)(sc, TRUE); 3955 } 3956 } 3957 } 3958 #endif /* NSPLASH */ 3959 break; 3960 3961 case RBT: 3962 #ifndef SC_DISABLE_REBOOT 3963 shutdown_nice(0); 3964 #endif 3965 break; 3966 3967 case HALT: 3968 #ifndef SC_DISABLE_REBOOT 3969 shutdown_nice(RB_HALT); 3970 #endif 3971 break; 3972 3973 case PDWN: 3974 #ifndef SC_DISABLE_REBOOT 3975 shutdown_nice(RB_HALT|RB_POWEROFF); 3976 #endif 3977 break; 3978 3979 case SUSP: 3980 case STBY: 3981 break; 3982 3983 case DBG: 3984 #ifndef SC_DISABLE_DDBKEY 3985 #ifdef DDB 3986 lwkt_reltoken(&vga_token); 3987 Debugger("manual escape to debugger"); 3988 lwkt_gettoken(&vga_token); 3989 #else 3990 kprintf("No debugger in kernel\n"); 3991 #endif 3992 #else /* SC_DISABLE_DDBKEY */ 3993 /* do nothing */ 3994 #endif /* SC_DISABLE_DDBKEY */ 3995 break; 3996 3997 case PNC: 3998 if (enable_panic_key) 3999 panic("Forced by the panic key"); 4000 break; 4001 4002 case NEXT: 4003 this_scr = scp->index; 4004 for (i = (this_scr - sc->first_vty + 1)%sc->vtys; 4005 sc->first_vty + i != this_scr; 4006 i = (i + 1)%sc->vtys) { 4007 struct tty *tp = VIRTUAL_TTY(sc, sc->first_vty + i); 4008 if (ISTTYOPEN(tp)) { 4009 syscons_lock(); 4010 sc_switch_scr(scp->sc, sc->first_vty + i); 4011 syscons_unlock(); 4012 break; 4013 } 4014 } 4015 break; 4016 4017 case PREV: 4018 this_scr = scp->index; 4019 for (i = (this_scr - sc->first_vty + sc->vtys - 1)%sc->vtys; 4020 sc->first_vty + i != this_scr; 4021 i = (i + sc->vtys - 1)%sc->vtys) { 4022 struct tty *tp = VIRTUAL_TTY(sc, sc->first_vty + i); 4023 if (ISTTYOPEN(tp)) { 4024 syscons_lock(); 4025 sc_switch_scr(scp->sc, sc->first_vty + i); 4026 syscons_unlock(); 4027 break; 4028 } 4029 } 4030 break; 4031 4032 default: 4033 if (KEYCHAR(c) >= F_SCR && KEYCHAR(c) <= L_SCR) { 4034 syscons_lock(); 4035 sc_switch_scr(scp->sc, sc->first_vty + KEYCHAR(c) - F_SCR); 4036 syscons_unlock(); 4037 break; 4038 } 4039 /* assert(c & FKEY) */ 4040 if (!(sc->flags & SC_SCRN_BLANKED)) { 4041 lwkt_reltoken(&vga_token); 4042 return c; 4043 } 4044 break; 4045 } 4046 /* goto next_code */ 4047 } else { 4048 /* regular keys (maybe MKEY is set) */ 4049 if (!(sc->flags & SC_SCRN_BLANKED)) { 4050 lwkt_reltoken(&vga_token); 4051 return c; 4052 } 4053 } 4054 } 4055 4056 goto next_code; 4057 } 4058 4059 static int 4060 scmmap(struct dev_mmap_args *ap) 4061 { 4062 scr_stat *scp; 4063 4064 lwkt_gettoken(&vga_token); 4065 scp = SC_STAT(ap->a_head.a_dev); 4066 if (scp != scp->sc->cur_scp) { 4067 lwkt_reltoken(&vga_token); 4068 return EINVAL; 4069 } 4070 if (scp->sc->fbi != NULL) { 4071 size_t sz = 4072 roundup(scp->sc->fbi->height * scp->sc->fbi->stride, PAGE_SIZE); 4073 if (ap->a_offset > sz - PAGE_SIZE) { 4074 lwkt_reltoken(&vga_token); 4075 return EINVAL; 4076 } else { 4077 ap->a_result = atop(scp->sc->fbi->paddr + ap->a_offset); 4078 } 4079 } else { 4080 ap->a_result = (*vidsw[scp->sc->adapter]->mmap)(scp->sc->adp, 4081 ap->a_offset, 4082 ap->a_nprot); 4083 } 4084 lwkt_reltoken(&vga_token); 4085 return(0); 4086 } 4087 4088 static int 4089 save_kbd_state(scr_stat *scp, int unlock) 4090 { 4091 int state; 4092 int error; 4093 4094 WANT_UNLOCK(unlock); 4095 error = kbd_ioctl(scp->sc->kbd, KDGKBSTATE, (caddr_t)&state); 4096 WANT_LOCK(unlock); 4097 4098 if (error == ENOIOCTL) 4099 error = ENODEV; 4100 if (error == 0) { 4101 scp->status &= ~LOCK_MASK; 4102 scp->status |= state; 4103 } 4104 return error; 4105 } 4106 4107 static int 4108 update_kbd_state(scr_stat *scp, int new_bits, int mask, int unlock) 4109 { 4110 int state; 4111 int error; 4112 4113 if (mask != LOCK_MASK) { 4114 WANT_UNLOCK(unlock); 4115 error = kbd_ioctl(scp->sc->kbd, KDGKBSTATE, (caddr_t)&state); 4116 WANT_LOCK(unlock); 4117 4118 if (error == ENOIOCTL) 4119 error = ENODEV; 4120 if (error) { 4121 return error; 4122 } 4123 state &= ~mask; 4124 state |= new_bits & mask; 4125 } else { 4126 state = new_bits & LOCK_MASK; 4127 } 4128 WANT_UNLOCK(unlock); 4129 error = kbd_ioctl(scp->sc->kbd, KDSKBSTATE, (caddr_t)&state); 4130 WANT_LOCK(unlock); 4131 if (error == ENOIOCTL) 4132 error = ENODEV; 4133 return error; 4134 } 4135 4136 static int 4137 update_kbd_leds(scr_stat *scp, int which) 4138 { 4139 int error; 4140 4141 which &= LOCK_MASK; 4142 error = kbd_ioctl(scp->sc->kbd, KDSETLED, (caddr_t)&which); 4143 if (error == ENOIOCTL) 4144 error = ENODEV; 4145 return error; 4146 } 4147 4148 int 4149 set_mode(scr_stat *scp) 4150 { 4151 video_info_t info; 4152 4153 lwkt_gettoken(&vga_token); 4154 /* reject unsupported mode */ 4155 if (scp->sc->fbi == NULL && (*vidsw[scp->sc->adapter]->get_info)(scp->sc->adp, scp->mode, &info)) { 4156 lwkt_reltoken(&vga_token); 4157 return 1; 4158 } 4159 4160 /* if this vty is not currently showing, do nothing */ 4161 if (scp != scp->sc->cur_scp) { 4162 lwkt_reltoken(&vga_token); 4163 return 0; 4164 } 4165 4166 /* setup video hardware for the given mode */ 4167 if (scp->sc->fbi == NULL) { 4168 (*vidsw[scp->sc->adapter]->set_mode)(scp->sc->adp, scp->mode); 4169 sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, scp->xsize, scp->ysize, 4170 (void *)scp->sc->adp->va_window, FALSE); 4171 } else { 4172 goto done; 4173 } 4174 4175 #ifndef SC_NO_FONT_LOADING 4176 /* load appropriate font */ 4177 if (!(scp->status & GRAPHICS_MODE)) { 4178 if (!(scp->status & PIXEL_MODE) && ISFONTAVAIL(scp->sc->adp->va_flags)) { 4179 if (scp->font_height < 14) { 4180 if (scp->sc->fonts_loaded & FONT_8) 4181 sc_load_font(scp, 0, 8, scp->sc->font_8, 0, 256); 4182 } else if (scp->font_height >= 16) { 4183 if (scp->sc->fonts_loaded & FONT_16) 4184 sc_load_font(scp, 0, 16, scp->sc->font_16, 0, 256); 4185 } else { 4186 if (scp->sc->fonts_loaded & FONT_14) 4187 sc_load_font(scp, 0, 14, scp->sc->font_14, 0, 256); 4188 } 4189 /* 4190 * FONT KLUDGE: 4191 * This is an interim kludge to display correct font. 4192 * Always use the font page #0 on the video plane 2. 4193 * Somehow we cannot show the font in other font pages on 4194 * some video cards... XXX 4195 */ 4196 sc_show_font(scp, 0); 4197 } 4198 mark_all(scp); 4199 } 4200 #endif /* !SC_NO_FONT_LOADING */ 4201 4202 sc_set_border(scp, scp->border); 4203 sc_set_cursor_image(scp); 4204 4205 done: 4206 lwkt_reltoken(&vga_token); 4207 return 0; 4208 } 4209 4210 void 4211 refresh_ega_palette(scr_stat *scp) 4212 { 4213 uint32_t r, g, b; 4214 int reg; 4215 int rsize, gsize, bsize; 4216 int rfld, gfld, bfld; 4217 int i; 4218 4219 rsize = scp->sc->adp->va_info.vi_pixel_fsizes[0]; 4220 gsize = scp->sc->adp->va_info.vi_pixel_fsizes[1]; 4221 bsize = scp->sc->adp->va_info.vi_pixel_fsizes[2]; 4222 rfld = scp->sc->adp->va_info.vi_pixel_fields[0]; 4223 gfld = scp->sc->adp->va_info.vi_pixel_fields[1]; 4224 bfld = scp->sc->adp->va_info.vi_pixel_fields[2]; 4225 4226 for (i = 0; i < 16; i++) { 4227 reg = scp->sc->adp->va_palette_regs[i]; 4228 4229 r = scp->sc->palette[reg * 3] >> (8 - rsize); 4230 g = scp->sc->palette[reg * 3 + 1] >> (8 - gsize); 4231 b = scp->sc->palette[reg * 3 + 2] >> (8 - bsize); 4232 4233 scp->ega_palette[i] = (r << rfld) + (g << gfld) + (b << bfld); 4234 } 4235 } 4236 4237 void 4238 sc_set_border(scr_stat *scp, int color) 4239 { 4240 atomic_add_int(&scp->sc->videoio_in_progress, 1); 4241 (*scp->rndr->draw_border)(scp, color); 4242 atomic_add_int(&scp->sc->videoio_in_progress, -1); 4243 } 4244 4245 #ifndef SC_NO_FONT_LOADING 4246 void 4247 sc_load_font(scr_stat *scp, int page, int size, u_char *buf, 4248 int base, int count) 4249 { 4250 sc_softc_t *sc; 4251 4252 sc = scp->sc; 4253 sc->font_loading_in_progress = TRUE; 4254 (*vidsw[sc->adapter]->load_font)(sc->adp, page, size, buf, base, count); 4255 sc->font_loading_in_progress = FALSE; 4256 } 4257 4258 void 4259 sc_save_font(scr_stat *scp, int page, int size, u_char *buf, 4260 int base, int count) 4261 { 4262 sc_softc_t *sc; 4263 4264 sc = scp->sc; 4265 sc->font_loading_in_progress = TRUE; 4266 (*vidsw[sc->adapter]->save_font)(sc->adp, page, size, buf, base, count); 4267 sc->font_loading_in_progress = FALSE; 4268 } 4269 4270 void 4271 sc_show_font(scr_stat *scp, int page) 4272 { 4273 (*vidsw[scp->sc->adapter]->show_font)(scp->sc->adp, page); 4274 } 4275 #endif /* !SC_NO_FONT_LOADING */ 4276 4277 void 4278 sc_paste(scr_stat *scp, u_char *p, int count) 4279 { 4280 struct tty *tp; 4281 u_char *rmap; 4282 4283 /* 4284 * Holy hell, don't try to inject a paste buffer if the keyboard 4285 * is not in ascii mode! 4286 */ 4287 if (scp->kbd_mode != K_XLATE) 4288 return; 4289 4290 lwkt_gettoken(&vga_token); 4291 if (scp->status & MOUSE_VISIBLE) { 4292 tp = VIRTUAL_TTY(scp->sc, scp->sc->cur_scp->index); 4293 lwkt_gettoken(&tp->t_token); 4294 if (!ISTTYOPEN(tp)) { 4295 lwkt_reltoken(&tp->t_token); 4296 lwkt_reltoken(&vga_token); 4297 return; 4298 } 4299 rmap = scp->sc->scr_rmap; 4300 for (; count > 0; --count) 4301 (*linesw[tp->t_line].l_rint)(rmap[*p++], tp); 4302 lwkt_reltoken(&tp->t_token); 4303 } 4304 lwkt_reltoken(&vga_token); 4305 } 4306 4307 void 4308 sc_bell(scr_stat *scp, int pitch, int duration) 4309 { 4310 if (cold || shutdown_in_progress) 4311 return; 4312 4313 if (scp != scp->sc->cur_scp && (scp->sc->flags & SC_QUIET_BELL)) { 4314 return; 4315 } 4316 4317 if (scp->sc->flags & SC_VISUAL_BELL) { 4318 if (scp->sc->blink_in_progress) { 4319 return; 4320 } 4321 scp->sc->blink_in_progress = 3; 4322 if (scp != scp->sc->cur_scp) 4323 scp->sc->blink_in_progress += 2; 4324 lockmgr(&syscons_blink_lk, LK_EXCLUSIVE); 4325 sc_blink_screen(scp->sc->cur_scp); 4326 lockmgr(&syscons_blink_lk, LK_RELEASE); 4327 } else if (duration != 0 && pitch != 0) { 4328 if (scp != scp->sc->cur_scp) 4329 pitch *= 2; 4330 sysbeep(pitch, duration); 4331 } 4332 } 4333 4334 /* 4335 * Blink the screen, called with the syscons_mtx and syscons_blink_lk 4336 * held. Can be called directly or via the callout. 4337 */ 4338 static void 4339 sc_blink_screen(scr_stat *scp) 4340 { 4341 if (ISGRAPHSC(scp) || (scp->sc->blink_in_progress <= 1)) { 4342 scp->sc->blink_in_progress = 0; 4343 mark_all(scp); 4344 if (scp->sc->delayed_next_scr) 4345 sc_switch_scr(scp->sc, scp->sc->delayed_next_scr - 1); 4346 } else { 4347 (*scp->rndr->draw)(scp, 0, scp->xsize*scp->ysize, 4348 scp->sc->blink_in_progress & 1); 4349 scp->sc->blink_in_progress--; 4350 callout_reset(&scp->blink_screen_ch, hz / 10, 4351 blink_screen_callout, scp); 4352 } 4353 } 4354 4355 /* 4356 * Screen blink callout. Note that there is a lock order 4357 * reversal between syscons_blink_lk and the syscons lock. 4358 * Acquire the syscons lock non-blocking. 4359 */ 4360 static void 4361 blink_screen_callout(void *arg) 4362 { 4363 scr_stat *scp = arg; 4364 4365 if (syscons_lock_nonblock() == 0) { 4366 sc_blink_screen(scp); 4367 syscons_unlock(); 4368 } else { 4369 callout_reset(&scp->blink_screen_ch, hz / 10, 4370 blink_screen_callout, scp); 4371 } 4372 } 4373 4374 /* 4375 * Allocate active keyboard. Try to allocate "kbdmux" keyboard first, and, 4376 * if found, add all non-busy keyboards to "kbdmux". Otherwise look for 4377 * any keyboard. 4378 */ 4379 4380 static int 4381 sc_allocate_keyboard(sc_softc_t *sc, int unit) 4382 { 4383 int idx0, idx; 4384 keyboard_t *k0, *k; 4385 keyboard_info_t ki; 4386 4387 idx0 = kbd_allocate("kbdmux", -1, (void *)&sc->keyboard, sckbdevent, sc); 4388 if (idx0 != -1) { 4389 k0 = kbd_get_keyboard(idx0); 4390 4391 for (idx = kbd_find_keyboard2("*", -1, 0, 0); 4392 idx != -1; 4393 idx = kbd_find_keyboard2("*", -1, idx + 1, 0)) { 4394 k = kbd_get_keyboard(idx); 4395 4396 if (idx == idx0 || KBD_IS_BUSY(k)) 4397 continue; 4398 4399 bzero(&ki, sizeof(ki)); 4400 strcpy(ki.kb_name, k->kb_name); 4401 ki.kb_unit = k->kb_unit; 4402 4403 kbd_ioctl(k0, KBADDKBD, (caddr_t) &ki); 4404 } 4405 } else 4406 idx0 = kbd_allocate("*", unit, (void *)&sc->keyboard, sckbdevent, sc); 4407 4408 return (idx0); 4409 } 4410