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/caps.h> 45 #include <sys/conf.h> 46 #include <sys/proc.h> 47 #include <sys/caps.h> 48 #include <sys/signalvar.h> 49 #include <sys/sysctl.h> 50 #include <sys/taskqueue.h> 51 #include <sys/tty.h> 52 #include <sys/ttydefaults.h> /* for TTYDEF_* */ 53 #include <sys/kernel.h> 54 #include <sys/cons.h> 55 #include <sys/random.h> 56 #include <ddb/ddb.h> 57 58 #include <sys/thread2.h> 59 #include <sys/mutex2.h> 60 61 #include <machine/clock.h> 62 #include <machine/console.h> 63 #include <machine/psl.h> 64 #include <machine/pc/display.h> 65 #include <machine/frame.h> 66 #include <machine/framebuffer.h> 67 68 #include <dev/misc/kbd/kbdreg.h> 69 #include <dev/video/fb/fbreg.h> 70 #include <dev/video/fb/splashreg.h> 71 #include "syscons.h" 72 73 #define COLD 0 74 #define WARM 1 75 76 #define DEFAULT_BLANKTIME (5*60) /* 5 minutes */ 77 #define MAX_BLANKTIME (7*24*60*60) /* 7 days!? */ 78 79 #define SCRN_ASYNCOK 0x0001 80 #define SCRN_BULKUNLOCK 0x0002 81 82 #define KEYCODE_BS 0x0e /* "<-- Backspace" key, XXX */ 83 #define WANT_UNLOCK(m) do { \ 84 if (m) \ 85 syscons_unlock(); \ 86 } while (0) 87 88 #define WANT_LOCK(m) do { \ 89 if (m) \ 90 syscons_lock(); \ 91 } while(0) 92 93 94 MALLOC_DEFINE(M_SYSCONS, "syscons", "Syscons"); 95 96 typedef struct default_attr { 97 int std_color; /* normal hardware color */ 98 int rev_color; /* reverse hardware color */ 99 } default_attr; 100 101 static default_attr user_default = { 102 SC_NORM_ATTR, 103 SC_NORM_REV_ATTR, 104 }; 105 106 static default_attr kernel_default = { 107 SC_KERNEL_CONS_ATTR, 108 SC_KERNEL_CONS_REV_ATTR, 109 }; 110 111 static int sc_console_unit = -1; 112 static scr_stat *sc_console; 113 static struct tty *sc_console_tty; 114 static void *kernel_console_ts; 115 116 static char init_done = COLD; 117 static char shutdown_in_progress = FALSE; 118 static char sc_malloc = FALSE; 119 static char sc_filled_border = FALSE; /* filled initial VT border */ 120 121 static int saver_mode = CONS_NO_SAVER; /* LKM/user saver */ 122 static int run_scrn_saver = FALSE; /* should run the saver? */ 123 static long scrn_blank_time = 0; /* screen saver timeout value */ 124 #if NSPLASH > 0 125 static int scrn_blanked; /* # of blanked screen */ 126 static int sticky_splash = FALSE; 127 128 static void none_saver(sc_softc_t *sc, int blank) { } 129 static void (*current_saver)(sc_softc_t *, int) = none_saver; 130 #endif 131 132 /* 133 * Lock for asynchronous screen update thread, needed to safely modify the 134 * framebuffer information. 135 */ 136 static struct lock sc_asynctd_lk; 137 138 #if !defined(SC_NO_FONT_LOADING) && defined(SC_DFLT_FONT) 139 #include "font.h" 140 #endif 141 142 static bios_values_t bios_value; 143 144 static int enable_panic_key; 145 SYSCTL_INT(_machdep, OID_AUTO, enable_panic_key, CTLFLAG_RW, &enable_panic_key, 146 0, "Enable the panic key (CTRL-ALT-SHIFT-ESC)"); 147 static int syscons_async; 148 SYSCTL_INT(_kern, OID_AUTO, syscons_async, CTLFLAG_RW, &syscons_async, 149 0, "Asynchronous bulk syscons fb updates"); 150 151 static int desired_cols = 0; 152 TUNABLE_INT("kern.kms_columns", &desired_cols); 153 154 #define SC_CONSOLECTL 255 155 156 #define VIRTUAL_TTY(sc, x) ((SC_DEV((sc),(x)) != NULL) ? \ 157 (SC_DEV((sc),(x))->si_tty) : NULL) 158 #define ISTTYOPEN(tp) ((tp) && ((tp)->t_state & TS_ISOPEN)) 159 160 static int debugger; 161 static cdev_t cctl_dev; 162 static timeout_t blink_screen_callout; 163 static void sc_blink_screen(scr_stat *scp); 164 static struct mtx syscons_mtx = MTX_INITIALIZER("syscons"); 165 static struct lock syscons_blink_lk = LOCK_INITIALIZER("sblnk", 0, 0); 166 167 /* prototypes */ 168 static int scvidprobe(int unit, int flags, int cons); 169 static int sckbdprobe(int unit, int flags, int cons); 170 static void scmeminit(void *arg); 171 static int scdevtounit(cdev_t dev); 172 static kbd_callback_func_t sckbdevent; 173 static int scparam(struct tty *tp, struct termios *t); 174 static void scstart(struct tty *tp); 175 static void scinit(int unit, int flags); 176 #if 0 177 static void scterm(int unit, int flags); 178 #endif 179 static void scshutdown(void *arg, int howto); 180 static void sc_puts(scr_stat *scp, u_char *buf, int len); 181 static u_int scgetc(sc_softc_t *sc, u_int flags); 182 #define SCGETC_CN 1 183 #define SCGETC_NONBLOCK 2 184 static int sccngetch(int flags); 185 static void sccnupdate(scr_stat *scp); 186 static scr_stat *alloc_scp(sc_softc_t *sc, int vty); 187 static void init_scp(sc_softc_t *sc, int vty, scr_stat *scp); 188 static timeout_t scrn_timer; 189 static int and_region(int *s1, int *e1, int s2, int e2); 190 static void scrn_update(scr_stat *scp, int show_cursor, int flags); 191 static void scrn_update_thread(void *arg); 192 193 static void sc_fb_set_par(void *context, int pending); 194 #if NSPLASH > 0 195 static void sc_fb_blank(void *context, int pending); 196 #endif /* NSPLASH */ 197 198 #if NSPLASH > 0 199 static void scframebuffer_saver(sc_softc_t *sc, int show); 200 static int scsplash_callback(int event, void *arg); 201 static void scsplash_saver(sc_softc_t *sc, int show); 202 static int add_scrn_saver(void (*this_saver)(sc_softc_t *, int)); 203 static int remove_scrn_saver(void (*this_saver)(sc_softc_t *, int)); 204 static int set_scrn_saver_mode(scr_stat *scp, int mode, u_char *pal, int border); 205 static int restore_scrn_saver_mode(scr_stat *scp, int changemode); 206 static void stop_scrn_saver(sc_softc_t *sc, void (*saver)(sc_softc_t *, int)); 207 static int wait_scrn_saver_stop(sc_softc_t *sc, int need_unlock); 208 #define scsplash_stick(stick) (sticky_splash = (stick)) 209 #else /* !NSPLASH */ 210 #define scsplash_stick(stick) 211 #endif /* NSPLASH */ 212 213 static void do_switch_scr(sc_softc_t *sc); 214 static int vt_proc_alive(scr_stat *scp); 215 static int signal_vt_rel(scr_stat *scp); 216 static int signal_vt_acq(scr_stat *scp); 217 static int finish_vt_rel(scr_stat *scp, int release); 218 static int finish_vt_acq(scr_stat *scp); 219 static void exchange_scr(sc_softc_t *sc); 220 static void update_cursor_image(scr_stat *scp); 221 static int save_kbd_state(scr_stat *scp, int unlock); 222 static int update_kbd_state(scr_stat *scp, int state, int mask, int unlock); 223 static int update_kbd_leds(scr_stat *scp, int which); 224 static int sc_allocate_keyboard(sc_softc_t *sc, int unit); 225 226 /* 227 * Console locking support functions. 228 * 229 * We use mutex spinlocks here in order to allow reentrancy which should 230 * avoid issues during panics. 231 * 232 * A panic can stop a cpu while it is holding the syscons_mtx. If this 233 * occurs we try for up to 1/2 a second and then blow the spinlock away. 234 * The asynchronous update thread makes this happen more often. 235 */ 236 static void 237 syscons_lock(void) 238 { 239 if (panicstr || shutdown_in_progress) { 240 int retries = 500000; 241 while (mtx_spinlock_try(&syscons_mtx)) { 242 tsc_delay(1000); /* 1uS */ 243 if (--retries == 0) { 244 mtx_init(&syscons_mtx, "syscons"); 245 retries = 500000; 246 } 247 } 248 } else { 249 mtx_spinlock(&syscons_mtx); 250 } 251 } 252 253 /* 254 * Returns 0 on success, EAGAIN on failure. 255 */ 256 static int 257 syscons_lock_nonblock(void) 258 { 259 return(mtx_spinlock_try(&syscons_mtx)); 260 } 261 262 static void 263 syscons_unlock(void) 264 { 265 mtx_spinunlock(&syscons_mtx); 266 } 267 268 /* 269 * Console driver 270 */ 271 static cn_probe_t sccnprobe; 272 static cn_init_t sccninit; 273 static cn_init_t sccninit_fini; 274 static cn_getc_t sccngetc; 275 static cn_checkc_t sccncheckc; 276 static cn_putc_t sccnputc; 277 static cn_dbctl_t sccndbctl; 278 static cn_term_t sccnterm; 279 static cn_poll_t sccnpoll; 280 281 CONS_DRIVER(sc, sccnprobe, sccninit, sccninit_fini, sccnterm, 282 sccngetc, sccncheckc, sccnputc, sccndbctl, sccnpoll); 283 284 static d_open_t scopen; 285 static d_close_t scclose; 286 static d_read_t scread; 287 static d_ioctl_t scioctl; 288 static d_mmap_t scmmap; 289 290 static struct dev_ops sc_ops = { 291 { "sc", 0, D_TTY | D_MPSAFE }, 292 .d_open = scopen, 293 .d_close = scclose, 294 .d_read = scread, 295 .d_write = ttywrite, 296 .d_ioctl = scioctl, 297 .d_mmap = scmmap, 298 .d_kqfilter = ttykqfilter, 299 .d_revoke = ttyrevoke 300 }; 301 302 int 303 sc_probe_unit(int unit, int flags) 304 { 305 if ((flags & SC_EFI_FB) && (probe_efi_fb(0) != 0)) { 306 if (bootverbose) 307 kprintf("sc%d: no EFI framebuffer found.\n", unit); 308 flags &= ~SC_EFI_FB; 309 } 310 311 if (!(flags & SC_EFI_FB) && !scvidprobe(unit, flags, FALSE)) { 312 if (bootverbose) 313 kprintf("sc%d: no video adapter found.\n", unit); 314 return ENXIO; 315 } 316 317 /* syscons will be attached even when there is no keyboard */ 318 sckbdprobe(unit, flags, FALSE); 319 320 return 0; 321 } 322 323 int 324 register_framebuffer(struct fb_info *info) 325 { 326 sc_softc_t *sc; 327 328 /* For now ignore framebuffers, which don't replace the vga display */ 329 if (!info->is_vga_boot_display) 330 return 0; 331 332 lwkt_gettoken(&vga_token); 333 sc = sc_get_softc(0, (sc_console_unit == 0) ? SC_KERNEL_CONSOLE : 0); 334 if (sc == NULL) { 335 lwkt_reltoken(&vga_token); 336 kprintf("%s: sc_get_softc(%d, %d) returned NULL\n", __func__, 337 0, (sc_console_unit == 0) ? SC_KERNEL_CONSOLE : 0); 338 return 0; 339 } 340 341 /* Ignore this framebuffer if we already switched to KMS framebuffer */ 342 if (sc->fbi != NULL && sc->fbi != &efi_fb_info && 343 sc->fbi != sc->dummy_fb_info) { 344 lwkt_reltoken(&vga_token); 345 return 0; 346 } 347 348 if (sc->fb_set_par_task == NULL) { 349 sc->fb_set_par_task = kmalloc(sizeof(struct task), 350 M_SYSCONS, M_WAITOK | M_ZERO); 351 } 352 TASK_INIT(sc->fb_set_par_task, 0, sc_fb_set_par, sc); 353 #if NSPLASH > 0 354 if (sc->fb_blank_task == NULL) { 355 sc->fb_blank_task = kmalloc(sizeof(struct task), 356 M_SYSCONS, M_WAITOK | M_ZERO); 357 } 358 TASK_INIT(sc->fb_blank_task, 0, sc_fb_blank, sc); 359 #endif /* NSPLASH */ 360 361 /* 362 * Make sure that console messages don't interfere too much with 363 * modesetting. 364 */ 365 atomic_add_int(&sc->videoio_in_progress, 1); 366 367 /* Lock against synchronous and asynchronous screen updates */ 368 lockmgr(&sc_asynctd_lk, LK_EXCLUSIVE); 369 syscons_lock(); 370 sc->fbi = info; 371 sc->fbi_generation++; 372 syscons_unlock(); 373 374 kprintf("kms console: xpixels %d ypixels %d\n", 375 sc->fbi->width, sc->fbi->height); 376 sc_update_render(sc->cur_scp); 377 if (info->fbops.fb_set_par != NULL) 378 info->fbops.fb_set_par(info); 379 atomic_add_int(&sc->videoio_in_progress, -1); 380 381 sc->fb_blanked = FALSE; 382 if (sc->unit == sc_console_unit && sc->cur_scp->smode.mode != VT_AUTO) 383 cons_unavail = FALSE; 384 #if NSPLASH > 0 385 if (info->fbops.fb_blank != NULL) 386 add_scrn_saver(scframebuffer_saver); 387 #endif /* NSPLASH */ 388 389 lockmgr(&sc_asynctd_lk, LK_RELEASE); 390 lwkt_reltoken(&vga_token); 391 return 0; 392 } 393 394 void 395 unregister_framebuffer(struct fb_info *info) 396 { 397 sc_softc_t *sc; 398 399 lwkt_gettoken(&vga_token); 400 sc = sc_get_softc(0, (sc_console_unit == 0) ? SC_KERNEL_CONSOLE : 0); 401 if (sc == NULL) { 402 lwkt_reltoken(&vga_token); 403 kprintf("%s: sc_get_softc(%d, %d) returned NULL\n", __func__, 404 0, (sc_console_unit == 0) ? SC_KERNEL_CONSOLE : 0); 405 return; 406 } 407 408 if (sc->fbi != info) { 409 lwkt_reltoken(&vga_token); 410 return; 411 } 412 413 #if NSPLASH > 0 414 if (info->fbops.fb_blank != NULL) 415 remove_scrn_saver(scframebuffer_saver); 416 #endif /* NSPLASH */ 417 418 if (sc->fb_set_par_task != NULL && 419 taskqueue_cancel(taskqueue_thread[0], sc->fb_set_par_task, NULL)) { 420 taskqueue_drain(taskqueue_thread[0], sc->fb_set_par_task); 421 } 422 #if NSPLASH > 0 423 if (sc->fb_blank_task != NULL && 424 taskqueue_cancel(taskqueue_thread[0], sc->fb_blank_task, NULL)) { 425 taskqueue_drain(taskqueue_thread[0], sc->fb_blank_task); 426 } 427 #endif /* NSPLASH */ 428 sc->fb_blanked = TRUE; 429 if (sc->unit == sc_console_unit) 430 cons_unavail = TRUE; 431 432 if (sc->dummy_fb_info == NULL) { 433 sc->dummy_fb_info = kmalloc(sizeof(struct fb_info), 434 M_SYSCONS, M_WAITOK | M_ZERO); 435 } else { 436 memset(sc->dummy_fb_info, 0, sizeof(struct fb_info)); 437 } 438 *sc->dummy_fb_info = *sc->fbi; 439 sc->dummy_fb_info->vaddr = 0; 440 sc->dummy_fb_info->fbops.fb_set_par = NULL; 441 sc->dummy_fb_info->fbops.fb_blank = NULL; 442 sc->dummy_fb_info->fbops.fb_debug_enter = NULL; 443 444 /* Lock against synchronous and asynchronous screen updates */ 445 lockmgr(&sc_asynctd_lk, LK_EXCLUSIVE); 446 syscons_lock(); 447 sc->fbi = sc->dummy_fb_info; 448 syscons_unlock(); 449 lockmgr(&sc_asynctd_lk, LK_RELEASE); 450 451 lwkt_reltoken(&vga_token); 452 } 453 454 void 455 sc_font_scale(scr_stat *scp, int max_cols, int max_rows) 456 { 457 int cols, rows; 458 459 /* 460 * If columns not specified in /boot/loader.conf then 461 * calculate a non-fractional scaling that yields a 462 * reasonable number of rows and columns. If it is <0, 463 * don't scale at all. 464 */ 465 if (desired_cols == 0) { 466 int nomag = 1; 467 while (scp->xpixel / (scp->font_width * nomag) >= COL && 468 scp->ypixel / (scp->font_height * nomag) >= ROW) { 469 ++nomag; 470 } 471 if (nomag > 1) 472 --nomag; 473 cols = scp->xpixel / (scp->font_width * nomag); 474 } else if (desired_cols < 0) { 475 cols = scp->xpixel / scp->font_width; 476 } else { 477 cols = desired_cols; 478 } 479 scp->blk_width = scp->xpixel / cols; 480 scp->blk_height = scp->blk_width * scp->font_height / scp->font_width; 481 rows = scp->ypixel / scp->blk_height; 482 483 /* scp->xsize = scp->xpixel / scp->blk_width; total possible */ 484 scp->xsize = max_cols ? imin(max_cols, cols) : cols; 485 scp->ysize = max_rows ? imin(max_rows, rows) : rows; 486 } 487 488 /* probe video adapters, return TRUE if found */ 489 static int 490 scvidprobe(int unit, int flags, int cons) 491 { 492 /* 493 * Access the video adapter driver through the back door! 494 * Video adapter drivers need to be configured before syscons. 495 * However, when syscons is being probed as the low-level console, 496 * they have not been initialized yet. We force them to initialize 497 * themselves here. XXX 498 */ 499 vid_configure(cons ? VIO_PROBE_ONLY : 0); 500 501 return (vid_find_adapter("*", unit) >= 0); 502 } 503 504 /* probe the keyboard, return TRUE if found */ 505 static int 506 sckbdprobe(int unit, int flags, int cons) 507 { 508 /* access the keyboard driver through the backdoor! */ 509 kbd_configure(cons ? KB_CONF_PROBE_ONLY : 0); 510 511 return (kbd_find_keyboard("*", unit) >= 0); 512 } 513 514 static char * 515 adapter_name(video_adapter_t *adp) 516 { 517 static struct { 518 int type; 519 char *name[2]; 520 } names[] = { 521 { KD_MONO, { "MDA", "MDA" } }, 522 { KD_HERCULES, { "Hercules", "Hercules" } }, 523 { KD_CGA, { "CGA", "CGA" } }, 524 { KD_EGA, { "EGA", "EGA (mono)" } }, 525 { KD_VGA, { "VGA", "VGA (mono)" } }, 526 { KD_TGA, { "TGA", "TGA" } }, 527 { -1, { "Unknown", "Unknown" } }, 528 }; 529 int i; 530 531 for (i = 0; names[i].type != -1; ++i) 532 if (names[i].type == adp->va_type) 533 break; 534 return names[i].name[(adp->va_flags & V_ADP_COLOR) ? 0 : 1]; 535 } 536 537 int 538 sc_attach_unit(int unit, int flags) 539 { 540 sc_softc_t *sc; 541 scr_stat *scp; 542 int vc; 543 cdev_t dev; 544 flags &= ~SC_KERNEL_CONSOLE; 545 char tbuf[MAKEDEV_MINNBUF]; 546 547 if ((flags & SC_EFI_FB) && probe_efi_fb(0) != 0) 548 flags &= ~SC_EFI_FB; 549 550 if (sc_console_unit == unit) { 551 /* 552 * If this unit is being used as the system console, we need to 553 * adjust some variables and buffers before and after scinit(). 554 */ 555 /* assert(sc_console != NULL) */ 556 flags |= SC_KERNEL_CONSOLE; 557 scmeminit(NULL); 558 559 scinit(unit, flags); 560 561 if (sc_console->tsw->te_size > 0) { 562 /* assert(sc_console->ts != NULL); */ 563 kernel_console_ts = sc_console->ts; 564 sc_console->ts = kmalloc(sc_console->tsw->te_size, 565 M_SYSCONS, M_WAITOK); 566 bcopy(kernel_console_ts, sc_console->ts, sc_console->tsw->te_size); 567 (*sc_console->tsw->te_default_attr)(sc_console, 568 user_default.std_color, 569 user_default.rev_color); 570 } 571 } else { 572 scinit(unit, flags); 573 } 574 575 sc = sc_get_softc(unit, flags & SC_KERNEL_CONSOLE); 576 577 /* 578 * If this is the console we couldn't setup sc->dev before because 579 * malloc wasn't working. Set it up now. 580 */ 581 if (flags & SC_KERNEL_CONSOLE) { 582 KKASSERT(sc->dev == NULL); 583 sc->dev = kmalloc(sizeof(cdev_t)*sc->vtys, M_SYSCONS, M_WAITOK|M_ZERO); 584 sc->dev[0] = make_dev(&sc_ops, sc_console_unit*MAXCONS, UID_ROOT, 585 GID_WHEEL, 0600, "ttyv%s", makedev_unit_b32(tbuf, 586 sc_console_unit * MAXCONS)); 587 ttymalloc(&sc->dev[0]->si_tty); 588 sc->dev[0]->si_drv1 = sc_console; 589 } 590 591 /* 592 * Finish up the standard attach 593 */ 594 sc->config = flags; 595 callout_init_mp(&sc->scrn_timer_ch); 596 scp = SC_STAT(sc->dev[0]); 597 if (sc_console == NULL) /* sc_console_unit < 0 */ 598 sc_console = scp; 599 600 /* initialize cursor */ 601 if (!ISGRAPHSC(scp)) 602 update_cursor_image(scp); 603 604 /* get screen update going */ 605 scrn_timer(sc); 606 607 /* set up the keyboard */ 608 kbd_ioctl(sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode); 609 update_kbd_state(scp, scp->status, LOCK_MASK, FALSE); 610 611 kprintf("sc%d: %s <%d virtual consoles, flags=0x%x>\n", 612 unit, (sc->config & SC_EFI_FB) ? "EFI_FB" : adapter_name(sc->adp), 613 sc->vtys, sc->config); 614 if (bootverbose) { 615 kprintf("sc%d:", unit); 616 if (sc->adapter >= 0) 617 kprintf(" fb%d", sc->adapter); 618 if (sc->keyboard >= 0) 619 kprintf(", kbd%d", sc->keyboard); 620 if (scp->tsw) 621 kprintf(", terminal emulator: %s (%s)", 622 scp->tsw->te_name, scp->tsw->te_desc); 623 kprintf("\n"); 624 } 625 626 /* register a shutdown callback for the kernel console */ 627 if (sc_console_unit == unit) 628 EVENTHANDLER_REGISTER(shutdown_pre_sync, scshutdown, 629 (void *)(uintptr_t)unit, SHUTDOWN_PRI_DEFAULT); 630 631 /* 632 * create devices. 633 * 634 * The first vty already has struct tty and scr_stat initialized 635 * in scinit(). The other vtys will have these structs when 636 * first opened. 637 */ 638 for (vc = 1; vc < sc->vtys; vc++) { 639 dev = make_dev(&sc_ops, vc + unit * MAXCONS, 640 UID_ROOT, GID_WHEEL, 0600, "ttyv%s", 641 makedev_unit_b32(tbuf, vc + unit * MAXCONS)); 642 sc->dev[vc] = dev; 643 } 644 cctl_dev = make_dev(&sc_ops, SC_CONSOLECTL, 645 UID_ROOT, GID_WHEEL, 0600, "consolectl"); 646 cctl_dev->si_tty = ttymalloc(&sc_console_tty); 647 cctl_dev->si_drv1 = sc_console; 648 return 0; 649 } 650 651 static void 652 scmeminit(void *arg) 653 { 654 if (sc_malloc) 655 return; 656 sc_malloc = TRUE; 657 658 /* 659 * As soon as malloc() becomes functional, we had better allocate 660 * various buffers for the kernel console. 661 */ 662 663 if (sc_console_unit < 0) /* sc_console == NULL */ 664 return; 665 666 /* copy the temporary buffer to the final buffer */ 667 sc_alloc_scr_buffer(sc_console, TRUE, FALSE); 668 669 #ifndef SC_NO_CUTPASTE 670 sc_alloc_cut_buffer(sc_console, TRUE); 671 #endif 672 673 #ifndef SC_NO_HISTORY 674 /* initialize history buffer & pointers */ 675 sc_alloc_history_buffer(sc_console, 0, 0, TRUE); 676 #endif 677 678 /* Fill initial terminal border, efi_fb_info.vaddr should be non-NULL now */ 679 if (!sc_filled_border) { 680 sc_filled_border = TRUE; 681 sc_set_border(sc_console, sc_console->border); 682 } 683 } 684 685 SYSINIT(sc_mem, SI_BOOT1_POST, SI_ORDER_ANY, scmeminit, NULL); 686 687 static int 688 scdevtounit(cdev_t dev) 689 { 690 int vty = SC_VTY(dev); 691 692 if (vty == SC_CONSOLECTL) 693 return ((sc_console != NULL) ? sc_console->sc->unit : -1); 694 else if ((vty < 0) || (vty >= MAXCONS*sc_max_unit())) 695 return -1; 696 else 697 return vty/MAXCONS; 698 } 699 700 static int 701 scopen(struct dev_open_args *ap) 702 { 703 cdev_t dev = ap->a_head.a_dev; 704 int unit; 705 sc_softc_t *sc; 706 struct tty *tp; 707 scr_stat *scp; 708 keyarg_t key; 709 int error; 710 711 /* 712 * Disallow access to disk volumes if RESTRICTEDROOT 713 */ 714 if (caps_priv_check_self(SYSCAP_RESTRICTEDROOT)) 715 return (EPERM); 716 717 lwkt_gettoken(&vga_token); 718 unit = scdevtounit(dev); 719 DPRINTF(5, ("scopen: dev:%d,%d, unit:%d, vty:%d\n", 720 major(dev), minor(dev), unit, SC_VTY(dev))); 721 722 sc = sc_get_softc(unit, (sc_console_unit == unit) ? SC_KERNEL_CONSOLE : 0); 723 if (sc == NULL) { 724 lwkt_reltoken(&vga_token); 725 return ENXIO; 726 } 727 728 tp = ttymalloc(&dev->si_tty); 729 lwkt_gettoken(&tp->t_token); 730 tp->t_oproc = scstart; 731 tp->t_param = scparam; 732 tp->t_stop = nottystop; 733 734 tp->t_dev = dev; 735 736 if (!ISTTYOPEN(tp)) { 737 ttychars(tp); 738 /* Use the current setting of the <-- key as default VERASE. */ 739 /* If the Delete key is preferable, an stty is necessary */ 740 if (sc->kbd != NULL) { 741 key.keynum = KEYCODE_BS; 742 kbd_ioctl(sc->kbd, GIO_KEYMAPENT, (caddr_t)&key); 743 tp->t_cc[VERASE] = key.key.map[0]; 744 } 745 tp->t_iflag = TTYDEF_IFLAG; 746 tp->t_oflag = TTYDEF_OFLAG; 747 tp->t_cflag = TTYDEF_CFLAG; 748 tp->t_lflag = TTYDEF_LFLAG; 749 tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED; 750 scparam(tp, &tp->t_termios); 751 (*linesw[tp->t_line].l_modem)(tp, 1); 752 } 753 else 754 if ((tp->t_state & TS_XCLUDE) && 755 caps_priv_check(ap->a_cred, SYSCAP_RESTRICTEDROOT)) 756 { 757 lwkt_reltoken(&tp->t_token); 758 lwkt_reltoken(&vga_token); 759 return(EBUSY); 760 } 761 762 error = (*linesw[tp->t_line].l_open)(dev, tp); 763 764 scp = SC_STAT(dev); 765 if (scp == NULL) { 766 scp = dev->si_drv1 = alloc_scp(sc, SC_VTY(dev)); 767 syscons_lock(); 768 if (ISGRAPHSC(scp)) 769 sc_set_pixel_mode(scp, NULL, COL, ROW, 16); 770 syscons_unlock(); 771 } 772 if (!tp->t_winsize.ws_col && !tp->t_winsize.ws_row) { 773 tp->t_winsize.ws_col = scp->xsize; 774 tp->t_winsize.ws_row = scp->ysize; 775 } 776 777 /* 778 * Start optional support thread for syscons refreshes. This thread 779 * will execute the refresh without the syscons_lock held and will 780 * allow interrupts while it is doing so. 781 */ 782 if (scp->asynctd == NULL) { 783 lwkt_create(scrn_update_thread, scp, &scp->asynctd, NULL, 0, -1, 784 "syscons%d", SC_VTY(dev)); 785 } 786 lwkt_reltoken(&tp->t_token); 787 lwkt_reltoken(&vga_token); 788 789 return error; 790 } 791 792 static int 793 scclose(struct dev_close_args *ap) 794 { 795 cdev_t dev = ap->a_head.a_dev; 796 struct tty *tp = dev->si_tty; 797 scr_stat *scp; 798 799 lwkt_gettoken(&vga_token); 800 lwkt_gettoken(&tp->t_token); 801 if (SC_VTY(dev) != SC_CONSOLECTL) { 802 scp = SC_STAT(tp->t_dev); 803 /* were we in the middle of the VT switching process? */ 804 DPRINTF(5, ("sc%d: scclose(), ", scp->sc->unit)); 805 if ((scp == scp->sc->cur_scp) && (scp->sc->unit == sc_console_unit) && 806 !scp->sc->fb_blanked) { 807 cons_unavail = FALSE; 808 } 809 if (finish_vt_rel(scp, TRUE) == 0) /* force release */ 810 DPRINTF(5, ("reset WAIT_REL, ")); 811 if (finish_vt_acq(scp) == 0) /* force acknowledge */ 812 DPRINTF(5, ("reset WAIT_ACQ, ")); 813 syscons_lock(); 814 #if 0 /* notyet */ 815 if (scp == &main_console) { 816 scp->pid = 0; 817 scp->proc = NULL; 818 scp->smode.mode = VT_AUTO; 819 } 820 else { 821 sc_vtb_destroy(&scp->vtb); 822 sc_vtb_destroy(&scp->scr); 823 sc_free_history_buffer(scp, scp->ysize); 824 SC_STAT(dev) = NULL; 825 kfree(scp, M_SYSCONS); 826 } 827 #else 828 scp->pid = 0; 829 scp->proc = NULL; 830 scp->smode.mode = VT_AUTO; 831 #endif 832 scp->kbd_mode = K_XLATE; 833 syscons_unlock(); 834 if (scp == scp->sc->cur_scp) 835 kbd_ioctl(scp->sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode); 836 DPRINTF(5, ("done.\n")); 837 } 838 (*linesw[tp->t_line].l_close)(tp, ap->a_fflag); 839 ttyclose(tp); 840 lwkt_reltoken(&tp->t_token); 841 lwkt_reltoken(&vga_token); 842 843 return(0); 844 } 845 846 static int 847 scread(struct dev_read_args *ap) 848 { 849 int ret; 850 851 lwkt_gettoken(&vga_token); 852 sc_touch_scrn_saver(); 853 ret = ttyread(ap); 854 lwkt_reltoken(&vga_token); 855 return ret; 856 } 857 858 static int 859 sckbdevent(keyboard_t *thiskbd, int event, void *arg) 860 { 861 sc_softc_t *sc; 862 struct tty *cur_tty; 863 int c; 864 size_t len; 865 u_char *cp; 866 867 lwkt_gettoken(&vga_token); 868 /* 869 * WARNING: In early boot sc->dev may not be setup yet. 870 */ 871 sc = (sc_softc_t *)arg; 872 /* assert(thiskbd == sc->kbd) */ 873 874 switch (event) { 875 case KBDIO_KEYINPUT: 876 if (sc->kbd && sc->kbd->kb_flags & KB_POLLED) { 877 lwkt_reltoken(&vga_token); 878 return 0; 879 } 880 break; 881 case KBDIO_UNLOADING: 882 syscons_lock(); 883 sc->kbd = NULL; 884 sc->keyboard = -1; 885 syscons_unlock(); 886 kbd_release(thiskbd, (void *)&sc->keyboard); 887 lwkt_reltoken(&vga_token); 888 return 0; 889 default: 890 lwkt_reltoken(&vga_token); 891 return EINVAL; 892 } 893 894 /* 895 * Loop while there is still input to get from the keyboard. 896 * I don't think this is nessesary, and it doesn't fix 897 * the Xaccel-2.1 keyboard hang, but it can't hurt. XXX 898 */ 899 while ((c = scgetc(sc, SCGETC_NONBLOCK)) != NOKEY) { 900 cur_tty = VIRTUAL_TTY(sc, sc->cur_scp->index); 901 if (!ISTTYOPEN(cur_tty)) { 902 cur_tty = sc_console_tty; 903 if (!ISTTYOPEN(cur_tty)) 904 continue; 905 } 906 907 syscons_lock(); 908 if ((*sc->cur_scp->tsw->te_input)(sc->cur_scp, c, cur_tty)) { 909 syscons_unlock(); 910 continue; 911 } 912 syscons_unlock(); 913 914 lwkt_gettoken(&cur_tty->t_token); 915 916 switch (KEYFLAGS(c)) { 917 case 0x0000: /* normal key */ 918 (*linesw[cur_tty->t_line].l_rint)(KEYCHAR(c), cur_tty); 919 break; 920 case FKEY: /* function key, return string */ 921 cp = kbd_get_fkeystr(thiskbd, KEYCHAR(c), &len); 922 if (cp != NULL) { 923 while (len-- > 0) 924 (*linesw[cur_tty->t_line].l_rint)(*cp++, cur_tty); 925 } 926 break; 927 case MKEY: /* meta is active, prepend ESC */ 928 (*linesw[cur_tty->t_line].l_rint)(0x1b, cur_tty); 929 (*linesw[cur_tty->t_line].l_rint)(KEYCHAR(c), cur_tty); 930 break; 931 case BKEY: /* backtab fixed sequence (esc [ Z) */ 932 (*linesw[cur_tty->t_line].l_rint)(0x1b, cur_tty); 933 (*linesw[cur_tty->t_line].l_rint)('[', cur_tty); 934 (*linesw[cur_tty->t_line].l_rint)('Z', cur_tty); 935 break; 936 } 937 lwkt_reltoken(&cur_tty->t_token); 938 } 939 940 syscons_lock(); 941 sc->cur_scp->status |= MOUSE_HIDDEN; 942 syscons_unlock(); 943 944 lwkt_reltoken(&vga_token); 945 return 0; 946 } 947 948 static int 949 scparam(struct tty *tp, struct termios *t) 950 { 951 lwkt_gettoken(&tp->t_token); 952 tp->t_ispeed = t->c_ispeed; 953 tp->t_ospeed = t->c_ospeed; 954 tp->t_cflag = t->c_cflag; 955 lwkt_reltoken(&tp->t_token); 956 957 return 0; 958 } 959 960 static int 961 scioctl(struct dev_ioctl_args *ap) 962 { 963 cdev_t dev = ap->a_head.a_dev; 964 u_long cmd = ap->a_cmd; 965 caddr_t data = ap->a_data; 966 int flag = ap->a_fflag; 967 int error; 968 int i; 969 struct tty *tp; 970 sc_softc_t *sc; 971 scr_stat *scp; 972 973 lwkt_gettoken(&vga_token); 974 tp = dev->si_tty; 975 976 error = sc_vid_ioctl(tp, cmd, data, flag); 977 if (error != ENOIOCTL) { 978 lwkt_reltoken(&vga_token); 979 return error; 980 } 981 982 #ifndef SC_NO_HISTORY 983 error = sc_hist_ioctl(tp, cmd, data, flag); 984 if (error != ENOIOCTL) { 985 lwkt_reltoken(&vga_token); 986 return error; 987 } 988 #endif 989 990 #ifndef SC_NO_SYSMOUSE 991 error = sc_mouse_ioctl(tp, cmd, data, flag); 992 if (error != ENOIOCTL) { 993 lwkt_reltoken(&vga_token); 994 return error; 995 } 996 #endif 997 998 scp = SC_STAT(tp->t_dev); 999 /* assert(scp != NULL) */ 1000 /* scp is sc_console, if SC_VTY(dev) == SC_CONSOLECTL. */ 1001 sc = scp->sc; 1002 1003 if (scp->tsw) { 1004 syscons_lock(); 1005 error = (*scp->tsw->te_ioctl)(scp, tp, cmd, data, flag); 1006 syscons_unlock(); 1007 if (error != ENOIOCTL) { 1008 lwkt_reltoken(&vga_token); 1009 return error; 1010 } 1011 } 1012 1013 switch (cmd) { /* process console hardware related ioctl's */ 1014 1015 case GIO_ATTR: /* get current attributes */ 1016 /* this ioctl is not processed here, but in the terminal emulator */ 1017 lwkt_reltoken(&vga_token); 1018 return ENOTTY; 1019 1020 case GIO_COLOR: /* is this a color console ? */ 1021 if (sc->fbi != NULL) 1022 *(int *)data = 1; 1023 else 1024 *(int *)data = (sc->adp->va_flags & V_ADP_COLOR) ? 1 : 0; 1025 lwkt_reltoken(&vga_token); 1026 return 0; 1027 1028 case CONS_BLANKTIME: /* set screen saver timeout (0 = no saver) */ 1029 if (*(int *)data < 0 || *(int *)data > MAX_BLANKTIME) { 1030 lwkt_reltoken(&vga_token); 1031 return EINVAL; 1032 } 1033 syscons_lock(); 1034 scrn_blank_time = *(int *)data; 1035 run_scrn_saver = (scrn_blank_time != 0); 1036 syscons_unlock(); 1037 lwkt_reltoken(&vga_token); 1038 return 0; 1039 1040 case CONS_CURSORTYPE: /* set cursor type blink/noblink */ 1041 syscons_lock(); 1042 if (!ISGRAPHSC(sc->cur_scp)) 1043 sc_remove_cursor_image(sc->cur_scp); 1044 if ((*(int*)data) & 0x01) 1045 sc->flags |= SC_BLINK_CURSOR; 1046 else 1047 sc->flags &= ~SC_BLINK_CURSOR; 1048 if ((*(int*)data) & 0x02) { 1049 sc->flags |= SC_CHAR_CURSOR; 1050 } else 1051 sc->flags &= ~SC_CHAR_CURSOR; 1052 /* 1053 * The cursor shape is global property; all virtual consoles 1054 * are affected. Update the cursor in the current console... 1055 */ 1056 if (!ISGRAPHSC(sc->cur_scp)) { 1057 sc_set_cursor_image(sc->cur_scp); 1058 sc_draw_cursor_image(sc->cur_scp); 1059 } 1060 syscons_unlock(); 1061 lwkt_reltoken(&vga_token); 1062 return 0; 1063 1064 case CONS_BELLTYPE: /* set bell type sound/visual */ 1065 syscons_lock(); 1066 1067 if ((*(int *)data) & 0x01) 1068 sc->flags |= SC_VISUAL_BELL; 1069 else 1070 sc->flags &= ~SC_VISUAL_BELL; 1071 1072 if ((*(int *)data) & 0x02) 1073 sc->flags |= SC_QUIET_BELL; 1074 else 1075 sc->flags &= ~SC_QUIET_BELL; 1076 1077 syscons_unlock(); 1078 lwkt_reltoken(&vga_token); 1079 return 0; 1080 1081 case CONS_GETINFO: /* get current (virtual) console info */ 1082 { 1083 vid_info_t *ptr = (vid_info_t*)data; 1084 if (ptr->size == sizeof(struct vid_info)) { 1085 ptr->m_num = sc->cur_scp->index; 1086 ptr->font_size = scp->font_height; 1087 ptr->mv_col = scp->xpos; 1088 ptr->mv_row = scp->ypos; 1089 ptr->mv_csz = scp->xsize; 1090 ptr->mv_rsz = scp->ysize; 1091 /* 1092 * The following fields are filled by the terminal emulator. XXX 1093 * 1094 * ptr->mv_norm.fore 1095 * ptr->mv_norm.back 1096 * ptr->mv_rev.fore 1097 * ptr->mv_rev.back 1098 */ 1099 ptr->mv_grfc.fore = 0; /* not supported */ 1100 ptr->mv_grfc.back = 0; /* not supported */ 1101 ptr->mv_ovscan = scp->border; 1102 if (scp == sc->cur_scp) 1103 save_kbd_state(scp, FALSE); 1104 ptr->mk_keylock = scp->status & LOCK_MASK; 1105 lwkt_reltoken(&vga_token); 1106 return 0; 1107 } 1108 lwkt_reltoken(&vga_token); 1109 return EINVAL; 1110 } 1111 1112 case CONS_GETVERS: /* get version number */ 1113 *(int*)data = 0x200; /* version 2.0 */ 1114 lwkt_reltoken(&vga_token); 1115 return 0; 1116 1117 case CONS_IDLE: /* see if the screen has been idle */ 1118 /* 1119 * When the screen is in the GRAPHICS_MODE or UNKNOWN_MODE, 1120 * the user process may have been writing something on the 1121 * screen and syscons is not aware of it. Declare the screen 1122 * is NOT idle if it is in one of these modes. But there is 1123 * an exception to it; if a screen saver is running in the 1124 * graphics mode in the current screen, we should say that the 1125 * screen has been idle. 1126 */ 1127 *(int *)data = (sc->flags & SC_SCRN_IDLE) 1128 && (!ISGRAPHSC(sc->cur_scp) 1129 || (sc->cur_scp->status & SAVER_RUNNING)); 1130 lwkt_reltoken(&vga_token); 1131 return 0; 1132 1133 case CONS_SAVERMODE: /* set saver mode */ 1134 switch(*(int *)data) { 1135 case CONS_NO_SAVER: 1136 case CONS_USR_SAVER: 1137 syscons_lock(); 1138 /* if a LKM screen saver is running, stop it first. */ 1139 scsplash_stick(FALSE); 1140 saver_mode = *(int *)data; 1141 #if NSPLASH > 0 1142 if ((error = wait_scrn_saver_stop(NULL, TRUE))) { 1143 syscons_unlock(); 1144 lwkt_reltoken(&vga_token); 1145 return error; 1146 } 1147 #endif /* NSPLASH */ 1148 run_scrn_saver = TRUE; 1149 if (saver_mode == CONS_USR_SAVER) 1150 scp->status |= SAVER_RUNNING; 1151 else 1152 scp->status &= ~SAVER_RUNNING; 1153 scsplash_stick(TRUE); 1154 syscons_unlock(); 1155 break; 1156 case CONS_LKM_SAVER: 1157 syscons_lock(); 1158 if ((saver_mode == CONS_USR_SAVER) && (scp->status & SAVER_RUNNING)) 1159 scp->status &= ~SAVER_RUNNING; 1160 saver_mode = *(int *)data; 1161 syscons_unlock(); 1162 break; 1163 default: 1164 lwkt_reltoken(&vga_token); 1165 return EINVAL; 1166 } 1167 lwkt_reltoken(&vga_token); 1168 return 0; 1169 1170 case CONS_SAVERSTART: /* immediately start/stop the screen saver */ 1171 /* 1172 * Note that this ioctl does not guarantee the screen saver 1173 * actually starts or stops. It merely attempts to do so... 1174 */ 1175 syscons_lock(); 1176 run_scrn_saver = (*(int *)data != 0); 1177 if (run_scrn_saver) 1178 sc->scrn_time_stamp -= scrn_blank_time; 1179 syscons_unlock(); 1180 lwkt_reltoken(&vga_token); 1181 return 0; 1182 1183 case CONS_SCRSHOT: /* get a screen shot */ 1184 { 1185 scrshot_t *ptr = (scrshot_t*)data; 1186 syscons_lock(); 1187 if (ISGRAPHSC(scp)) { 1188 syscons_unlock(); 1189 lwkt_reltoken(&vga_token); 1190 return EOPNOTSUPP; 1191 } 1192 if (scp->xsize != ptr->xsize || scp->ysize != ptr->ysize) { 1193 syscons_unlock(); 1194 lwkt_reltoken(&vga_token); 1195 return EINVAL; 1196 } 1197 syscons_unlock(); 1198 copyout ((void*)scp->vtb.vtb_buffer, ptr->buf, 1199 ptr->xsize * ptr->ysize * sizeof(uint16_t)); 1200 lwkt_reltoken(&vga_token); 1201 return 0; 1202 } 1203 1204 case VT_SETMODE: /* set screen switcher mode */ 1205 { 1206 struct vt_mode *mode; 1207 1208 mode = (struct vt_mode *)data; 1209 DPRINTF(5, ("sc%d: VT_SETMODE ", sc->unit)); 1210 if (scp->smode.mode == VT_PROCESS) { 1211 if (scp->proc == pfindn(scp->pid) && scp->proc != curproc) { 1212 DPRINTF(5, ("error EPERM\n")); 1213 lwkt_reltoken(&vga_token); 1214 return EPERM; 1215 } 1216 } 1217 syscons_lock(); 1218 if (mode->mode == VT_AUTO) { 1219 scp->smode.mode = VT_AUTO; 1220 scp->proc = NULL; 1221 scp->pid = 0; 1222 DPRINTF(5, ("VT_AUTO, ")); 1223 if ((scp == sc->cur_scp) && (sc->unit == sc_console_unit) && 1224 !sc->fb_blanked) { 1225 cons_unavail = FALSE; 1226 } 1227 if (finish_vt_rel(scp, TRUE) == 0) 1228 DPRINTF(5, ("reset WAIT_REL, ")); 1229 if (finish_vt_acq(scp) == 0) 1230 DPRINTF(5, ("reset WAIT_ACQ, ")); 1231 } else { 1232 if (!ISSIGVALID(mode->relsig) || !ISSIGVALID(mode->acqsig) 1233 || !ISSIGVALID(mode->frsig)) { 1234 syscons_unlock(); 1235 DPRINTF(5, ("error EINVAL\n")); 1236 lwkt_reltoken(&vga_token); 1237 return EINVAL; 1238 } 1239 DPRINTF(5, ("VT_PROCESS %d, ", curproc->p_pid)); 1240 bcopy(data, &scp->smode, sizeof(struct vt_mode)); 1241 scp->proc = curproc; 1242 scp->pid = scp->proc->p_pid; 1243 if ((scp == sc->cur_scp) && (sc->unit == sc_console_unit)) 1244 cons_unavail = TRUE; 1245 } 1246 syscons_unlock(); 1247 DPRINTF(5, ("\n")); 1248 lwkt_reltoken(&vga_token); 1249 return 0; 1250 } 1251 1252 case VT_GETMODE: /* get screen switcher mode */ 1253 bcopy(&scp->smode, data, sizeof(struct vt_mode)); 1254 lwkt_reltoken(&vga_token); 1255 return 0; 1256 1257 case VT_RELDISP: /* screen switcher ioctl */ 1258 /* 1259 * This must be the current vty which is in the VT_PROCESS 1260 * switching mode... 1261 */ 1262 syscons_lock(); 1263 if ((scp != sc->cur_scp) || (scp->smode.mode != VT_PROCESS)) { 1264 syscons_unlock(); 1265 lwkt_reltoken(&vga_token); 1266 return EINVAL; 1267 } 1268 /* ...and this process is controlling it. */ 1269 if (scp->proc != curproc) { 1270 syscons_unlock(); 1271 lwkt_reltoken(&vga_token); 1272 return EPERM; 1273 } 1274 error = EINVAL; 1275 switch(*(int *)data) { 1276 case VT_FALSE: /* user refuses to release screen, abort */ 1277 if ((error = finish_vt_rel(scp, FALSE)) == 0) 1278 DPRINTF(5, ("sc%d: VT_FALSE\n", sc->unit)); 1279 break; 1280 case VT_TRUE: /* user has released screen, go on */ 1281 if ((error = finish_vt_rel(scp, TRUE)) == 0) 1282 DPRINTF(5, ("sc%d: VT_TRUE\n", sc->unit)); 1283 break; 1284 case VT_ACKACQ: /* acquire acknowledged, switch completed */ 1285 if ((error = finish_vt_acq(scp)) == 0) 1286 DPRINTF(5, ("sc%d: VT_ACKACQ\n", sc->unit)); 1287 syscons_unlock(); 1288 /* Wait for drm modesetting callback to finish. */ 1289 lwkt_reltoken(&vga_token); 1290 if (sc->fb_set_par_task != NULL) 1291 taskqueue_drain(taskqueue_thread[0], sc->fb_set_par_task); 1292 return error; 1293 default: 1294 break; 1295 } 1296 syscons_unlock(); 1297 lwkt_reltoken(&vga_token); 1298 return error; 1299 1300 case VT_OPENQRY: /* return free virtual console */ 1301 for (i = sc->first_vty; i < sc->first_vty + sc->vtys; i++) { 1302 tp = VIRTUAL_TTY(sc, i); 1303 if (!ISTTYOPEN(tp)) { 1304 *(int *)data = i + 1; 1305 lwkt_reltoken(&vga_token); 1306 return 0; 1307 } 1308 } 1309 lwkt_reltoken(&vga_token); 1310 return EINVAL; 1311 1312 case VT_ACTIVATE: /* switch to screen *data */ 1313 i = (*(int *)data == 0) ? scp->index : (*(int *)data - 1); 1314 syscons_lock(); 1315 sc_clean_up(sc->cur_scp, TRUE); 1316 error = sc_switch_scr(sc, i); 1317 syscons_unlock(); 1318 lwkt_reltoken(&vga_token); 1319 return error; 1320 1321 case VT_WAITACTIVE: /* wait for switch to occur */ 1322 i = (*(int *)data == 0) ? scp->index : (*(int *)data - 1); 1323 if ((i < sc->first_vty) || (i >= sc->first_vty + sc->vtys)) { 1324 lwkt_reltoken(&vga_token); 1325 return EINVAL; 1326 } 1327 syscons_lock(); 1328 error = sc_clean_up(sc->cur_scp, TRUE); 1329 syscons_unlock(); 1330 if (error) { 1331 lwkt_reltoken(&vga_token); 1332 return error; 1333 } 1334 1335 /* 1336 * scp might be NULL, we aren't sure why. Check for NULL. 1337 * 1338 * http://bugs.dragonflybsd.org/issues/2481 1339 */ 1340 scp = SC_STAT(SC_DEV(sc, i)); 1341 if (scp == NULL || scp == scp->sc->cur_scp) { 1342 lwkt_reltoken(&vga_token); 1343 return 0; 1344 } 1345 error = tsleep((caddr_t)&scp->smode, PCATCH, "waitvt", 0); 1346 /* May return ERESTART */ 1347 lwkt_reltoken(&vga_token); 1348 /* Wait for drm modesetting callback to finish. */ 1349 if (sc->fb_set_par_task != NULL) 1350 taskqueue_drain(taskqueue_thread[0], sc->fb_set_par_task); 1351 return error; 1352 1353 case VT_GETACTIVE: /* get active vty # */ 1354 *(int *)data = sc->cur_scp->index + 1; 1355 lwkt_reltoken(&vga_token); 1356 return 0; 1357 1358 case VT_GETINDEX: /* get this vty # */ 1359 *(int *)data = scp->index + 1; 1360 lwkt_reltoken(&vga_token); 1361 return 0; 1362 1363 case VT_LOCKSWITCH: /* prevent vty switching */ 1364 syscons_lock(); 1365 if ((*(int *)data) & 0x01) 1366 sc->flags |= SC_SCRN_VTYLOCK; 1367 else 1368 sc->flags &= ~SC_SCRN_VTYLOCK; 1369 syscons_unlock(); 1370 lwkt_reltoken(&vga_token); 1371 return 0; 1372 1373 case KDENABIO: /* allow io operations */ 1374 error = caps_priv_check(ap->a_cred, SYSCAP_RESTRICTEDROOT); 1375 if (error != 0) { 1376 lwkt_reltoken(&vga_token); 1377 return error; 1378 } 1379 if (securelevel > 0) { 1380 lwkt_reltoken(&vga_token); 1381 return EPERM; 1382 } 1383 #if defined(__x86_64__) 1384 curthread->td_lwp->lwp_md.md_regs->tf_rflags |= PSL_IOPL; 1385 #endif 1386 lwkt_reltoken(&vga_token); 1387 return 0; 1388 1389 case KDDISABIO: /* disallow io operations (default) */ 1390 #if defined(__x86_64__) 1391 curthread->td_lwp->lwp_md.md_regs->tf_rflags &= ~PSL_IOPL; 1392 #endif 1393 lwkt_reltoken(&vga_token); 1394 return 0; 1395 1396 case KDSKBSTATE: /* set keyboard state (locks) */ 1397 if (*(int *)data & ~LOCK_MASK) { 1398 lwkt_reltoken(&vga_token); 1399 return EINVAL; 1400 } 1401 syscons_lock(); 1402 scp->status &= ~LOCK_MASK; 1403 scp->status |= *(int *)data; 1404 syscons_unlock(); 1405 if (scp == sc->cur_scp) 1406 update_kbd_state(scp, scp->status, LOCK_MASK, FALSE); 1407 lwkt_reltoken(&vga_token); 1408 return 0; 1409 1410 case KDGKBSTATE: /* get keyboard state (locks) */ 1411 if (scp == sc->cur_scp) 1412 save_kbd_state(scp, FALSE); 1413 *(int *)data = scp->status & LOCK_MASK; 1414 lwkt_reltoken(&vga_token); 1415 return 0; 1416 1417 case KDGETREPEAT: /* get keyboard repeat & delay rates */ 1418 case KDSETREPEAT: /* set keyboard repeat & delay rates (new) */ 1419 error = kbd_ioctl(sc->kbd, cmd, data); 1420 if (error == ENOIOCTL) 1421 error = ENODEV; 1422 lwkt_reltoken(&vga_token); 1423 return error; 1424 1425 case KDSKBMODE: /* set keyboard mode */ 1426 switch (*(int *)data) { 1427 case K_XLATE: /* switch to XLT ascii mode */ 1428 case K_RAW: /* switch to RAW scancode mode */ 1429 case K_CODE: /* switch to CODE mode */ 1430 scp->kbd_mode = *(int *)data; 1431 if (scp == sc->cur_scp) 1432 kbd_ioctl(sc->kbd, cmd, data); 1433 lwkt_reltoken(&vga_token); 1434 return 0; 1435 default: 1436 lwkt_reltoken(&vga_token); 1437 return EINVAL; 1438 } 1439 /* NOT REACHED */ 1440 1441 case KDGKBMODE: /* get keyboard mode */ 1442 *(int *)data = scp->kbd_mode; 1443 lwkt_reltoken(&vga_token); 1444 return 0; 1445 1446 case KDGKBINFO: 1447 error = kbd_ioctl(sc->kbd, cmd, data); 1448 if (error == ENOIOCTL) 1449 error = ENODEV; 1450 lwkt_reltoken(&vga_token); 1451 return error; 1452 1453 case KDMKTONE: /* sound the bell */ 1454 syscons_lock(); 1455 if (*(int*)data) 1456 sc_bell(scp, (*(int*)data)&0xffff, 1457 (((*(int*)data)>>16)&0xffff)*hz/1000); 1458 else 1459 sc_bell(scp, scp->bell_pitch, scp->bell_duration); 1460 syscons_unlock(); 1461 lwkt_reltoken(&vga_token); 1462 return 0; 1463 1464 case KIOCSOUND: /* make tone (*data) hz */ 1465 syscons_lock(); 1466 if (scp == sc->cur_scp) { 1467 if (*(int *)data) { 1468 error = sc_tone(*(int *)data); 1469 } else { 1470 error = sc_tone(0); 1471 } 1472 } else { 1473 error = 0; 1474 } 1475 syscons_unlock(); 1476 lwkt_reltoken(&vga_token); 1477 return error; 1478 1479 case KDGKBTYPE: /* get keyboard type */ 1480 error = kbd_ioctl(sc->kbd, cmd, data); 1481 if (error == ENOIOCTL) { 1482 /* always return something? XXX */ 1483 *(int *)data = 0; 1484 } 1485 lwkt_reltoken(&vga_token); 1486 return 0; 1487 1488 case KDSETLED: /* set keyboard LED status */ 1489 if (*(int *)data & ~LED_MASK) { /* FIXME: LOCK_MASK? */ 1490 lwkt_reltoken(&vga_token); 1491 return EINVAL; 1492 } 1493 syscons_lock(); 1494 scp->status &= ~LED_MASK; 1495 scp->status |= *(int *)data; 1496 syscons_unlock(); 1497 if (scp == sc->cur_scp) 1498 update_kbd_leds(scp, scp->status); 1499 lwkt_reltoken(&vga_token); 1500 return 0; 1501 1502 case KDGETLED: /* get keyboard LED status */ 1503 if (scp == sc->cur_scp) 1504 save_kbd_state(scp, FALSE); 1505 *(int *)data = scp->status & LED_MASK; 1506 lwkt_reltoken(&vga_token); 1507 return 0; 1508 1509 case KBADDKBD: /* add/remove keyboard to/from mux */ 1510 case KBRELKBD: 1511 error = kbd_ioctl(sc->kbd, cmd, data); 1512 if (error == ENOIOCTL) 1513 error = ENODEV; 1514 lwkt_reltoken(&vga_token); 1515 return error; 1516 1517 case CONS_SETKBD: /* set the new keyboard */ 1518 { 1519 keyboard_t *newkbd; 1520 1521 newkbd = kbd_get_keyboard(*(int *)data); 1522 if (newkbd == NULL) { 1523 lwkt_reltoken(&vga_token); 1524 return EINVAL; 1525 } 1526 error = 0; 1527 if (sc->kbd != newkbd) { 1528 i = kbd_allocate(newkbd->kb_name, newkbd->kb_unit, 1529 (void *)&sc->keyboard, sckbdevent, sc); 1530 /* i == newkbd->kb_index */ 1531 if (i >= 0) { 1532 if (sc->kbd != NULL) { 1533 save_kbd_state(sc->cur_scp, FALSE); 1534 kbd_release(sc->kbd, (void *)&sc->keyboard); 1535 } 1536 syscons_lock(); 1537 sc->kbd = kbd_get_keyboard(i); /* sc->kbd == newkbd */ 1538 sc->keyboard = i; 1539 syscons_unlock(); 1540 kbd_ioctl(sc->kbd, KDSKBMODE, 1541 (caddr_t)&sc->cur_scp->kbd_mode); 1542 update_kbd_state(sc->cur_scp, sc->cur_scp->status, 1543 LOCK_MASK, FALSE); 1544 } else { 1545 error = EPERM; /* XXX */ 1546 } 1547 } 1548 lwkt_reltoken(&vga_token); 1549 return error; 1550 } 1551 1552 case CONS_RELKBD: /* release the current keyboard */ 1553 error = 0; 1554 if (sc->kbd != NULL) { 1555 save_kbd_state(sc->cur_scp, FALSE); 1556 error = kbd_release(sc->kbd, (void *)&sc->keyboard); 1557 if (error == 0) { 1558 syscons_lock(); 1559 sc->kbd = NULL; 1560 sc->keyboard = -1; 1561 syscons_unlock(); 1562 } 1563 } 1564 lwkt_reltoken(&vga_token); 1565 return error; 1566 1567 case CONS_GETTERM: /* get the current terminal emulator info */ 1568 { 1569 sc_term_sw_t *sw; 1570 1571 if (((term_info_t *)data)->ti_index == 0) { 1572 sw = scp->tsw; 1573 } else { 1574 sw = sc_term_match_by_number(((term_info_t *)data)->ti_index); 1575 } 1576 if (sw != NULL) { 1577 strncpy(((term_info_t *)data)->ti_name, sw->te_name, 1578 sizeof(((term_info_t *)data)->ti_name)); 1579 strncpy(((term_info_t *)data)->ti_desc, sw->te_desc, 1580 sizeof(((term_info_t *)data)->ti_desc)); 1581 ((term_info_t *)data)->ti_flags = 0; 1582 lwkt_reltoken(&vga_token); 1583 return 0; 1584 } else { 1585 ((term_info_t *)data)->ti_name[0] = '\0'; 1586 ((term_info_t *)data)->ti_desc[0] = '\0'; 1587 ((term_info_t *)data)->ti_flags = 0; 1588 lwkt_reltoken(&vga_token); 1589 return EINVAL; 1590 } 1591 } 1592 1593 case CONS_SETTERM: /* set the current terminal emulator */ 1594 syscons_lock(); 1595 error = sc_init_emulator(scp, ((term_info_t *)data)->ti_name); 1596 /* FIXME: what if scp == sc_console! XXX */ 1597 syscons_unlock(); 1598 lwkt_reltoken(&vga_token); 1599 return error; 1600 1601 case GIO_SCRNMAP: /* get output translation table */ 1602 bcopy(&sc->scr_map, data, sizeof(sc->scr_map)); 1603 lwkt_reltoken(&vga_token); 1604 return 0; 1605 1606 case PIO_SCRNMAP: /* set output translation table */ 1607 bcopy(data, &sc->scr_map, sizeof(sc->scr_map)); 1608 for (i=0; i<sizeof(sc->scr_map); i++) { 1609 sc->scr_rmap[sc->scr_map[i]] = i; 1610 } 1611 lwkt_reltoken(&vga_token); 1612 return 0; 1613 1614 case GIO_KEYMAP: /* get keyboard translation table */ 1615 case PIO_KEYMAP: /* set keyboard translation table */ 1616 case GIO_DEADKEYMAP: /* get accent key translation table */ 1617 case PIO_DEADKEYMAP: /* set accent key translation table */ 1618 case GETFKEY: /* get function key string */ 1619 case SETFKEY: /* set function key string */ 1620 error = kbd_ioctl(sc->kbd, cmd, data); 1621 if (error == ENOIOCTL) 1622 error = ENODEV; 1623 lwkt_reltoken(&vga_token); 1624 return error; 1625 1626 #ifndef SC_NO_FONT_LOADING 1627 1628 case PIO_FONT8x8: /* set 8x8 dot font */ 1629 if (sc->fbi == NULL && !ISFONTAVAIL(sc->adp->va_flags)) { 1630 lwkt_reltoken(&vga_token); 1631 return ENXIO; 1632 } 1633 syscons_lock(); 1634 bcopy(data, sc->font_8, 8*256); 1635 sc->fonts_loaded |= FONT_8; 1636 /* 1637 * FONT KLUDGE 1638 * Always use the font page #0. XXX 1639 * Don't load if the current font size is not 8x8. 1640 */ 1641 if (sc->fbi == NULL 1642 && ISTEXTSC(sc->cur_scp) && (sc->cur_scp->font_height < 14)) { 1643 sc_load_font(sc->cur_scp, 0, 8, sc->font_8, 0, 256); 1644 } 1645 syscons_unlock(); 1646 lwkt_reltoken(&vga_token); 1647 return 0; 1648 1649 case GIO_FONT8x8: /* get 8x8 dot font */ 1650 if (sc->fbi == NULL && !ISFONTAVAIL(sc->adp->va_flags)) { 1651 lwkt_reltoken(&vga_token); 1652 return ENXIO; 1653 } 1654 if (sc->fonts_loaded & FONT_8) { 1655 bcopy(sc->font_8, data, 8*256); 1656 lwkt_reltoken(&vga_token); 1657 return 0; 1658 } 1659 else { 1660 lwkt_reltoken(&vga_token); 1661 return ENXIO; 1662 } 1663 1664 case PIO_FONT8x14: /* set 8x14 dot font */ 1665 if (sc->fbi == NULL && !ISFONTAVAIL(sc->adp->va_flags)) { 1666 lwkt_reltoken(&vga_token); 1667 return ENXIO; 1668 } 1669 syscons_lock(); 1670 bcopy(data, sc->font_14, 14*256); 1671 sc->fonts_loaded |= FONT_14; 1672 /* 1673 * FONT KLUDGE 1674 * Always use the font page #0. XXX 1675 * Don't load if the current font size is not 8x14. 1676 */ 1677 if (sc->fbi == NULL 1678 && ISTEXTSC(sc->cur_scp) 1679 && (sc->cur_scp->font_height >= 14) 1680 && (sc->cur_scp->font_height < 16)) { 1681 sc_load_font(sc->cur_scp, 0, 14, sc->font_14, 0, 256); 1682 } 1683 syscons_unlock(); 1684 lwkt_reltoken(&vga_token); 1685 return 0; 1686 1687 case GIO_FONT8x14: /* get 8x14 dot font */ 1688 if (sc->fbi == NULL && !ISFONTAVAIL(sc->adp->va_flags)) { 1689 lwkt_reltoken(&vga_token); 1690 return ENXIO; 1691 } 1692 if (sc->fonts_loaded & FONT_14) { 1693 bcopy(sc->font_14, data, 14*256); 1694 lwkt_reltoken(&vga_token); 1695 return 0; 1696 } 1697 else { 1698 lwkt_reltoken(&vga_token); 1699 return ENXIO; 1700 } 1701 1702 case PIO_FONT8x16: /* set 8x16 dot font */ 1703 if (sc->fbi == NULL && !ISFONTAVAIL(sc->adp->va_flags)) { 1704 lwkt_reltoken(&vga_token); 1705 return ENXIO; 1706 } 1707 syscons_lock(); 1708 bcopy(data, sc->font_16, 16*256); 1709 sc->fonts_loaded |= FONT_16; 1710 /* 1711 * FONT KLUDGE 1712 * Always use the font page #0. XXX 1713 * Don't load if the current font size is not 8x16. 1714 */ 1715 if (sc->fbi == NULL 1716 && ISTEXTSC(sc->cur_scp) && (sc->cur_scp->font_height >= 16)) { 1717 sc_load_font(sc->cur_scp, 0, 16, sc->font_16, 0, 256); 1718 } 1719 syscons_unlock(); 1720 lwkt_reltoken(&vga_token); 1721 return 0; 1722 1723 case GIO_FONT8x16: /* get 8x16 dot font */ 1724 if (sc->fbi == NULL && !ISFONTAVAIL(sc->adp->va_flags)) { 1725 lwkt_reltoken(&vga_token); 1726 return ENXIO; 1727 } 1728 if (sc->fonts_loaded & FONT_16) { 1729 bcopy(sc->font_16, data, 16*256); 1730 lwkt_reltoken(&vga_token); 1731 return 0; 1732 } 1733 else { 1734 lwkt_reltoken(&vga_token); 1735 return ENXIO; 1736 } 1737 1738 #endif /* SC_NO_FONT_LOADING */ 1739 1740 default: 1741 break; 1742 } 1743 1744 lwkt_gettoken(&tp->t_token); 1745 error = (*linesw[tp->t_line].l_ioctl)(tp, cmd, data, flag, ap->a_cred); 1746 if (error != ENOIOCTL) { 1747 lwkt_reltoken(&tp->t_token); 1748 lwkt_reltoken(&vga_token); 1749 1750 return(error); 1751 } 1752 1753 error = ttioctl(tp, cmd, data, flag); 1754 if (error != ENOIOCTL) { 1755 lwkt_reltoken(&tp->t_token); 1756 lwkt_reltoken(&vga_token); 1757 1758 return(error); 1759 } 1760 1761 lwkt_reltoken(&tp->t_token); 1762 lwkt_reltoken(&vga_token); 1763 1764 return(ENOTTY); 1765 } 1766 1767 static void 1768 scstart(struct tty *tp) 1769 { 1770 struct clist *rbp; 1771 int len; 1772 u_char buf[PCBURST]; 1773 scr_stat *scp = SC_STAT(tp->t_dev); 1774 1775 syscons_lock(); 1776 if (scp->status & SLKED || 1777 (scp == scp->sc->cur_scp && scp->sc->blink_in_progress)) 1778 { 1779 syscons_unlock(); 1780 return; 1781 } 1782 if (!(tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP))) { 1783 tp->t_state |= TS_BUSY; 1784 rbp = &tp->t_outq; 1785 while (rbp->c_cc) { 1786 len = clist_qtob(rbp, buf, PCBURST); 1787 sc_puts(scp, buf, len); 1788 } 1789 tp->t_state &= ~TS_BUSY; 1790 syscons_unlock(); 1791 ttwwakeup(tp); 1792 } else { 1793 syscons_unlock(); 1794 } 1795 } 1796 1797 static void 1798 sccnprobe(struct consdev *cp) 1799 { 1800 int unit; 1801 int flags; 1802 1803 cp->cn_pri = sc_get_cons_priority(&unit, &flags); 1804 1805 /* a video card is always required */ 1806 if (probe_efi_fb(1) != 0 && !scvidprobe(unit, flags, TRUE)) 1807 cp->cn_pri = CN_DEAD; 1808 1809 /* syscons will become console even when there is no keyboard */ 1810 sckbdprobe(unit, flags, TRUE); 1811 1812 if (cp->cn_pri == CN_DEAD) { 1813 return; 1814 } 1815 1816 /* initialize required fields */ 1817 cp->cn_probegood = 1; 1818 } 1819 1820 static void 1821 sccninit(struct consdev *cp) 1822 { 1823 int unit; 1824 int flags; 1825 1826 sc_get_cons_priority(&unit, &flags); 1827 scinit(unit, flags | SC_KERNEL_CONSOLE); 1828 sc_console_unit = unit; 1829 sc_console = sc_get_softc(unit, SC_KERNEL_CONSOLE)->console_scp; 1830 } 1831 1832 static void 1833 sccninit_fini(struct consdev *cp) 1834 { 1835 if (cctl_dev == NULL) 1836 kprintf("sccninit_fini: WARNING: cctl_dev is NULL!\n"); 1837 cp->cn_dev = cctl_dev; 1838 } 1839 1840 /* 1841 * This is called when the console is switched away from syscons to 1842 * a late-configuring device (such as a PCIe serial port). Since 1843 * late-configuring devices basically didn't exist until now, this 1844 * routine was never called, and SURPRISE! It doesn't work... causes 1845 * syscons to implode due to all the funny console-not-console structure 1846 * selection syscons does. 1847 * 1848 * Make it a NOP. Just leave the console designation intact, even 1849 * though it is no longer a console. 1850 */ 1851 static void 1852 sccnterm(struct consdev *cp) 1853 { 1854 #if 0 1855 /* we are not the kernel console any more, release everything */ 1856 1857 if (sc_console_unit < 0) 1858 return; /* shouldn't happen */ 1859 1860 #if 0 /* XXX */ 1861 syscons_lock(); 1862 sc_clear_screen(sc_console); 1863 sccnupdate(sc_console); 1864 syscons_unlock(); 1865 #endif 1866 scterm(sc_console_unit, SC_KERNEL_CONSOLE); 1867 sc_console_unit = -1; 1868 sc_console = NULL; 1869 #endif 1870 } 1871 1872 /* 1873 * Console path - cannot block! 1874 */ 1875 static void 1876 sccnputc(void *private, int c) 1877 { 1878 u_char buf[1]; 1879 scr_stat *scp = sc_console; 1880 void *save; 1881 #ifndef SC_NO_HISTORY 1882 #if 0 1883 struct tty *tp; 1884 #endif 1885 #endif /* !SC_NO_HISTORY */ 1886 1887 /* assert(sc_console != NULL) */ 1888 1889 if (syscons_lock_nonblock() != 0) 1890 return; 1891 #ifndef SC_NO_HISTORY 1892 if (scp == scp->sc->cur_scp && scp->status & SLKED) { 1893 scp->status &= ~SLKED; 1894 #if 0 1895 /* This can block, illegal in the console path */ 1896 update_kbd_state(scp, scp->status, SLKED, TRUE); 1897 #endif 1898 if (scp->status & BUFFER_SAVED) { 1899 if (!sc_hist_restore(scp)) 1900 sc_remove_cutmarking(scp); 1901 scp->status &= ~BUFFER_SAVED; 1902 scp->status |= CURSOR_ENABLED; 1903 sc_draw_cursor_image(scp); 1904 } 1905 #if 0 1906 tp = VIRTUAL_TTY(scp->sc, scp->index); 1907 /* This can block, illegal in the console path */ 1908 if (ISTTYOPEN(tp)) { 1909 scstart(tp); 1910 } 1911 #endif 1912 } 1913 #endif /* !SC_NO_HISTORY */ 1914 1915 save = scp->ts; 1916 if (kernel_console_ts != NULL) 1917 scp->ts = kernel_console_ts; 1918 buf[0] = c; 1919 sc_puts(scp, buf, 1); 1920 scp->ts = save; 1921 1922 sccnupdate(scp); 1923 syscons_unlock(); 1924 } 1925 1926 /* 1927 * Console path - cannot block! 1928 */ 1929 static int 1930 sccngetc(void *private) 1931 { 1932 return sccngetch(0); 1933 } 1934 1935 /* 1936 * Console path - cannot block! 1937 */ 1938 static int 1939 sccncheckc(void *private) 1940 { 1941 return sccngetch(SCGETC_NONBLOCK); 1942 } 1943 1944 /* 1945 * Set polling mode (also disables the tty feed), use when 1946 * polling for console key input. 1947 */ 1948 static void 1949 sccnpoll(void *private, int on) 1950 { 1951 scr_stat *scp; 1952 1953 syscons_lock(); 1954 sc_touch_scrn_saver(); 1955 scp = sc_console->sc->cur_scp; /* XXX */ 1956 syscons_unlock(); 1957 if (scp->sc->kbd) 1958 kbd_poll(scp->sc->kbd, on); 1959 } 1960 1961 static void 1962 sccndbctl(void *private, int on) 1963 { 1964 /* assert(sc_console_unit >= 0) */ 1965 /* try to switch to the kernel console screen */ 1966 if (on && debugger == 0) { 1967 /* 1968 * TRY to make sure the screen saver is stopped, 1969 * and the screen is updated before switching to 1970 * the vty0. 1971 */ 1972 scrn_timer(NULL); 1973 if (!cold 1974 && sc_console->sc->cur_scp->smode.mode == VT_AUTO 1975 && sc_console->smode.mode == VT_AUTO) { 1976 sc_console->sc->cur_scp->status |= MOUSE_HIDDEN; 1977 syscons_lock(); 1978 sc_switch_scr(sc_console->sc, sc_console->index); 1979 syscons_unlock(); 1980 } 1981 } 1982 if (on) 1983 ++debugger; 1984 else 1985 --debugger; 1986 } 1987 1988 /* 1989 * Console path - cannot block! 1990 */ 1991 static int 1992 sccngetch(int flags) 1993 { 1994 static struct fkeytab fkey; 1995 static int fkeycp; 1996 scr_stat *scp; 1997 u_char *p; 1998 int cur_mode; 1999 int c; 2000 2001 syscons_lock(); 2002 /* assert(sc_console != NULL) */ 2003 2004 /* 2005 * Stop the screen saver and update the screen if necessary. 2006 * What if we have been running in the screen saver code... XXX 2007 */ 2008 sc_touch_scrn_saver(); 2009 scp = sc_console->sc->cur_scp; /* XXX */ 2010 sccnupdate(scp); 2011 syscons_unlock(); 2012 2013 if (fkeycp < fkey.len) { 2014 return fkey.str[fkeycp++]; 2015 } 2016 2017 if (scp->sc->kbd == NULL) { 2018 return -1; 2019 } 2020 2021 /* 2022 * Make sure the keyboard is accessible even when the kbd device 2023 * driver is disabled. 2024 */ 2025 crit_enter(); 2026 kbd_enable(scp->sc->kbd); 2027 2028 /* we shall always use the keyboard in the XLATE mode here */ 2029 cur_mode = scp->kbd_mode; 2030 scp->kbd_mode = K_XLATE; 2031 kbd_ioctl(scp->sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode); 2032 2033 c = scgetc(scp->sc, SCGETC_CN | flags); 2034 2035 scp->kbd_mode = cur_mode; 2036 kbd_ioctl(scp->sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode); 2037 kbd_disable(scp->sc->kbd); 2038 crit_exit(); 2039 2040 switch (KEYFLAGS(c)) { 2041 case 0: /* normal char */ 2042 return KEYCHAR(c); 2043 case FKEY: /* function key */ 2044 p = kbd_get_fkeystr(scp->sc->kbd, KEYCHAR(c), (size_t *)&fkeycp); 2045 fkey.len = fkeycp; 2046 if ((p != NULL) && (fkey.len > 0)) { 2047 bcopy(p, fkey.str, fkey.len); 2048 fkeycp = 1; 2049 return fkey.str[0]; 2050 } 2051 return c; /* XXX */ 2052 case NOKEY: 2053 if (flags & SCGETC_NONBLOCK) 2054 return c; 2055 /* fall through */ 2056 case ERRKEY: 2057 default: 2058 return -1; 2059 } 2060 /* NOT REACHED */ 2061 } 2062 2063 static void 2064 sccnupdate(scr_stat *scp) 2065 { 2066 int ddb_active; 2067 2068 #ifdef DDB 2069 ddb_active = db_active; 2070 #else 2071 ddb_active = 0; 2072 #endif 2073 2074 /* this is a cut-down version of scrn_timer()... */ 2075 2076 /* 2077 * Don't update if videoio is in progress. However, if we are paniced 2078 * or in the debugger it is possible that the variables might be stuck, 2079 * so ignore it in such cases. 2080 */ 2081 if (scp->sc->font_loading_in_progress || scp->sc->videoio_in_progress) { 2082 if (panicstr == NULL && ddb_active == 0 && shutdown_in_progress == 0) 2083 return; 2084 } 2085 2086 if (debugger > 0 || panicstr || ddb_active || shutdown_in_progress) { 2087 sc_touch_scrn_saver(); 2088 } else if (scp != scp->sc->cur_scp) { 2089 return; 2090 } 2091 2092 if (!run_scrn_saver) 2093 scp->sc->flags &= ~SC_SCRN_IDLE; 2094 #if NSPLASH > 0 2095 /* 2096 * This is a hard path, we cannot call stop_scrn_saver() here. 2097 */ 2098 if ((saver_mode != CONS_LKM_SAVER) || !(scp->sc->flags & SC_SCRN_IDLE)) 2099 if (scp->sc->flags & SC_SCRN_BLANKED) { 2100 sc_touch_scrn_saver(); 2101 /*stop_scrn_saver(scp->sc, current_saver);*/ 2102 } 2103 #endif /* NSPLASH */ 2104 2105 if (scp != scp->sc->cur_scp || scp->sc->blink_in_progress 2106 || scp->sc->switch_in_progress) { 2107 return; 2108 } 2109 2110 /* 2111 * FIXME: unlike scrn_timer(), we call scrn_update() from here even 2112 * when write_in_progress is non-zero. XXX 2113 */ 2114 if (!ISGRAPHSC(scp) && !(scp->sc->flags & SC_SCRN_BLANKED)) 2115 scrn_update(scp, TRUE, SCRN_ASYNCOK); 2116 } 2117 2118 static void 2119 scrn_timer(void *arg) 2120 { 2121 static int kbd_interval = 0; 2122 struct timeval tv; 2123 sc_softc_t *sc; 2124 scr_stat *scp; 2125 int again; 2126 2127 /* 2128 * Setup depending on who called us 2129 */ 2130 again = (arg != NULL); 2131 if (arg != NULL) { 2132 sc = (sc_softc_t *)arg; 2133 } else if (sc_console != NULL) { 2134 sc = sc_console->sc; 2135 } else { 2136 return; 2137 } 2138 2139 /* 2140 * Don't do anything when we are performing some I/O operations. 2141 * (These are initiated by the frontend?) 2142 */ 2143 if (sc->font_loading_in_progress || sc->videoio_in_progress) { 2144 if (again) 2145 callout_reset(&sc->scrn_timer_ch, hz / 10, scrn_timer, sc); 2146 return; 2147 } 2148 2149 /* 2150 * Try to allocate a keyboard automatically 2151 */ 2152 if ((sc->kbd == NULL) && (sc->config & SC_AUTODETECT_KBD)) { 2153 if (++kbd_interval >= 25) { 2154 sc->keyboard = sc_allocate_keyboard(sc, -1); 2155 if (sc->keyboard >= 0) { 2156 sc->kbd = kbd_get_keyboard(sc->keyboard); 2157 kbd_ioctl(sc->kbd, KDSKBMODE, 2158 (caddr_t)&sc->cur_scp->kbd_mode); 2159 update_kbd_state(sc->cur_scp, sc->cur_scp->status, 2160 LOCK_MASK, FALSE); 2161 } 2162 kbd_interval = 0; 2163 } 2164 } 2165 2166 /* 2167 * Should we stop the screen saver? We need the syscons_lock 2168 * for most of this stuff. 2169 */ 2170 getmicrouptime(&tv); 2171 2172 if (syscons_lock_nonblock() != 0) { 2173 /* failed to get the lock */ 2174 if (again) 2175 callout_reset(&sc->scrn_timer_ch, hz / 10, scrn_timer, sc); 2176 return; 2177 } 2178 /* successful lock */ 2179 2180 if (debugger > 0 || panicstr || shutdown_in_progress) 2181 sc_touch_scrn_saver(); 2182 if (run_scrn_saver) { 2183 if (tv.tv_sec > sc->scrn_time_stamp + scrn_blank_time) 2184 sc->flags |= SC_SCRN_IDLE; 2185 else 2186 sc->flags &= ~SC_SCRN_IDLE; 2187 } else { 2188 sc->scrn_time_stamp = tv.tv_sec; 2189 sc->flags &= ~SC_SCRN_IDLE; 2190 if (scrn_blank_time > 0) 2191 run_scrn_saver = TRUE; 2192 } 2193 #if NSPLASH > 0 2194 if ((saver_mode != CONS_LKM_SAVER) || !(sc->flags & SC_SCRN_IDLE)) { 2195 if ((sc->flags & SC_SCRN_BLANKED) && !ISGRAPHSC(sc->cur_scp)) 2196 stop_scrn_saver(sc, current_saver); 2197 } 2198 #endif /* NSPLASH */ 2199 2200 /* should we just return ? */ 2201 if (sc->blink_in_progress || sc->switch_in_progress || 2202 sc->write_in_progress) 2203 { 2204 syscons_unlock(); 2205 if (again) 2206 callout_reset(&sc->scrn_timer_ch, hz / 10, scrn_timer, sc); 2207 return; 2208 } 2209 2210 /* Update the screen */ 2211 scp = sc->cur_scp; /* cur_scp may have changed... */ 2212 if (!ISGRAPHSC(scp) && !(sc->flags & SC_SCRN_BLANKED)) 2213 scrn_update(scp, TRUE, SCRN_ASYNCOK); 2214 2215 #if NSPLASH > 0 2216 /* should we activate the screen saver? */ 2217 if ((saver_mode == CONS_LKM_SAVER) && (sc->flags & SC_SCRN_IDLE)) 2218 if (!ISGRAPHSC(scp) || (sc->flags & SC_SCRN_BLANKED)) 2219 (*current_saver)(sc, TRUE); 2220 #endif /* NSPLASH */ 2221 2222 syscons_unlock(); 2223 if (again) 2224 callout_reset(&sc->scrn_timer_ch, hz / 25, scrn_timer, sc); 2225 } 2226 2227 static int 2228 and_region(int *s1, int *e1, int s2, int e2) 2229 { 2230 if (*e1 < s2 || e2 < *s1) 2231 return FALSE; 2232 *s1 = imax(*s1, s2); 2233 *e1 = imin(*e1, e2); 2234 return TRUE; 2235 } 2236 2237 /* 2238 * Refresh modified frame buffer range. Also used to 2239 * scroll (entire FB is marked modified). 2240 * 2241 * This function is allowed to run without the syscons_lock, 2242 * so scp fields can change unexpected. We cache most values 2243 * that we care about and silently discard illegal ranges. 2244 */ 2245 static void 2246 scrn_update(scr_stat *scp, int show_cursor, int flags) 2247 { 2248 int start; 2249 int end; 2250 int cpos; 2251 int copos; 2252 int s; 2253 int e; 2254 int ddb_active; 2255 2256 #ifdef DDB 2257 ddb_active = db_active; 2258 #else 2259 ddb_active = 0; 2260 #endif 2261 2262 /* 2263 * Try to run large screen updates as an async operation, which will 2264 * call this function again from a thread with BULKUNLOCK set, allowing 2265 * interrupts during the update which tends to make the system behave 2266 * better (no sound glitches, etc). 2267 */ 2268 if ((flags & SCRN_ASYNCOK) && syscons_async && scp->asynctd && 2269 (scp->end - scp->start) > 16 && 2270 panicstr == NULL && ddb_active == 0 && shutdown_in_progress == 0) { 2271 scp->show_cursor = show_cursor; 2272 scp->queue_update_td = 1; 2273 wakeup(&scp->asynctd); 2274 return; 2275 } 2276 if (flags & SCRN_BULKUNLOCK) 2277 syscons_lock(); 2278 2279 /* 2280 * Synchronous operation or called from 2281 */ 2282 2283 /* assert(scp == scp->sc->cur_scp) */ 2284 atomic_add_int(&scp->sc->videoio_in_progress, 1); 2285 2286 cpos = scp->cursor_pos; 2287 copos = scp->cursor_oldpos; 2288 2289 #ifndef SC_NO_CUTPASTE 2290 /* remove the previous mouse pointer image if necessary */ 2291 if (scp->status & MOUSE_VISIBLE) { 2292 s = scp->mouse_pos; 2293 e = scp->mouse_pos + scp->xsize + 1; 2294 if ((scp->status & (MOUSE_MOVED | MOUSE_HIDDEN)) 2295 || and_region(&s, &e, scp->start, scp->end) 2296 || ((scp->status & CURSOR_ENABLED) && 2297 (cpos != copos) && 2298 (and_region(&s, &e, cpos, cpos) 2299 || and_region(&s, &e, copos, copos)))) { 2300 sc_remove_mouse_image(scp); 2301 if (scp->end >= scp->xsize*scp->ysize) 2302 scp->end = scp->xsize*scp->ysize - 1; 2303 } 2304 } 2305 #endif /* !SC_NO_CUTPASTE */ 2306 2307 /* 2308 * WARNING: Don't add debugging kprintf()s with syscons locked. 2309 * Or at all. 2310 */ 2311 if (scp->end >= scp->xsize*scp->ysize) { 2312 scp->end = scp->xsize*scp->ysize - 1; 2313 } 2314 if (scp->start < 0) { 2315 scp->start = 0; 2316 } 2317 2318 /* 2319 * Main update, extract update range and reset 2320 * ASAP. 2321 */ 2322 start = scp->start; 2323 end = scp->end; 2324 scp->end = 0; 2325 scp->start = scp->xsize * scp->ysize - 1; 2326 2327 if (start <= end) { 2328 if (flags & SCRN_BULKUNLOCK) { 2329 atomic_add_int(&scp->sc->videoio_in_progress, -1); 2330 syscons_unlock(); 2331 } 2332 (*scp->rndr->draw)(scp, start, end - start + 1, FALSE); 2333 if (flags & SCRN_BULKUNLOCK) { 2334 syscons_lock(); 2335 atomic_add_int(&scp->sc->videoio_in_progress, 1); 2336 } 2337 2338 /* 2339 * Handle cut sequence 2340 */ 2341 s = scp->mouse_cut_start; 2342 e = scp->mouse_cut_end; 2343 cpu_ccfence(); /* allowed to race */ 2344 2345 if (e >= 0) { 2346 if (s > e) { 2347 int r = s; 2348 s = e; 2349 e = r; 2350 } 2351 /* does the cut-mark region overlap with the update region? */ 2352 if (and_region(&s, &e, start, end)) { 2353 if (flags & SCRN_BULKUNLOCK) { 2354 atomic_add_int(&scp->sc->videoio_in_progress, -1); 2355 syscons_unlock(); 2356 } 2357 (*scp->rndr->draw)(scp, s, e - s + 1, TRUE); 2358 if (flags & SCRN_BULKUNLOCK) { 2359 syscons_lock(); 2360 atomic_add_int(&scp->sc->videoio_in_progress, 1); 2361 } 2362 } 2363 } 2364 } 2365 2366 /* we are not to show the cursor and the mouse pointer... */ 2367 if (!show_cursor) 2368 goto cleanup; 2369 2370 /* update cursor image */ 2371 if (scp->status & CURSOR_ENABLED) { 2372 s = start; 2373 e = end; 2374 /* did cursor move since last time ? */ 2375 if (cpos != copos) { 2376 /* do we need to remove old cursor image ? */ 2377 if (!and_region(&s, &e, copos, copos)) 2378 sc_remove_cursor_image(scp); 2379 sc_draw_cursor_image(scp); 2380 } else { 2381 if (s <= e && and_region(&s, &e, cpos, cpos)) { 2382 /* cursor didn't move, but has been overwritten */ 2383 sc_draw_cursor_image(scp); 2384 } else if (scp->sc->flags & SC_BLINK_CURSOR) { 2385 /* if it's a blinking cursor, update it */ 2386 (*scp->rndr->blink_cursor)(scp, cpos, 2387 sc_inside_cutmark(scp, cpos)); 2388 } 2389 } 2390 } 2391 2392 #ifndef SC_NO_CUTPASTE 2393 /* update "pseudo" mouse pointer image */ 2394 if (scp->sc->flags & SC_MOUSE_ENABLED) { 2395 if (!(scp->status & (MOUSE_VISIBLE | MOUSE_HIDDEN))) { 2396 scp->status &= ~MOUSE_MOVED; 2397 sc_draw_mouse_image(scp); 2398 } 2399 } 2400 #endif /* SC_NO_CUTPASTE */ 2401 2402 /* 2403 * Cleanup 2404 */ 2405 cleanup: 2406 atomic_add_int(&scp->sc->videoio_in_progress, -1); 2407 if (flags & SCRN_BULKUNLOCK) 2408 syscons_unlock(); 2409 } 2410 2411 /* 2412 * Thread handles potentially expensive screen updates. The function is 2413 * expected to operate safely without locks. 2414 */ 2415 static void 2416 scrn_update_thread(void *arg) 2417 { 2418 scr_stat *scp = arg; 2419 for (;;) { 2420 if (scp->queue_update_td == 0) { 2421 tsleep_interlock(&scp->asynctd, 0); 2422 if (scp->queue_update_td == 0) 2423 tsleep(&scp->asynctd, PINTERLOCKED, "wait", 0); 2424 } 2425 scp->queue_update_td = 0; 2426 lockmgr(&sc_asynctd_lk, LK_EXCLUSIVE); 2427 atomic_add_int(&scp->sc->videoio_in_progress, 1); 2428 scrn_update(scp, scp->show_cursor, SCRN_BULKUNLOCK); 2429 atomic_add_int(&scp->sc->videoio_in_progress, -1); 2430 lockmgr(&sc_asynctd_lk, LK_RELEASE); 2431 } 2432 } 2433 2434 static void 2435 sc_fb_set_par(void *context, int pending) 2436 { 2437 sc_softc_t *sc = context; 2438 2439 lwkt_gettoken(&vga_token); 2440 if (sc->fbi != NULL && sc->fbi->fbops.fb_set_par != NULL) 2441 sc->fbi->fbops.fb_set_par(sc->fbi); 2442 lwkt_reltoken(&vga_token); 2443 } 2444 2445 #if NSPLASH > 0 2446 static void 2447 sc_fb_blank(void *context, int pending) 2448 { 2449 sc_softc_t *sc = context; 2450 2451 lwkt_gettoken(&vga_token); 2452 if (sc->fbi != NULL && sc->fbi->fbops.fb_blank != NULL) { 2453 /* 0 == FB_BLANK_UNBLANK and 4 == FB_BLANK_POWERDOWN */ 2454 if (sc->flags & SC_SCRN_BLANKED) { 2455 sc->fbi->fbops.fb_blank(4, sc->fbi); 2456 sc->fb_blanked = TRUE; 2457 if (sc->unit == sc_console_unit) 2458 cons_unavail = TRUE; 2459 } else { 2460 sc->fbi->fbops.fb_blank(0, sc->fbi); 2461 sc->fb_blanked = FALSE; 2462 if (sc->unit == sc_console_unit && 2463 sc->cur_scp->smode.mode == VT_AUTO) 2464 cons_unavail = FALSE; 2465 } 2466 } 2467 lwkt_reltoken(&vga_token); 2468 } 2469 2470 static void 2471 scframebuffer_saver(sc_softc_t *sc, int show) 2472 { 2473 scr_stat *scp = sc->cur_scp; 2474 2475 if (panicstr) 2476 return; 2477 2478 /* 2479 * Gets called on every screen update while screensaver is active, 2480 * so we need to check the SC_SCRN_BLANKED flag ourselves. 2481 */ 2482 if ((sc->flags & SC_SCRN_BLANKED) && show) 2483 return; 2484 2485 taskqueue_cancel(taskqueue_thread[0], sc->fb_blank_task, NULL); 2486 crit_enter(); 2487 if (show) { 2488 scp->status |= SAVER_RUNNING; 2489 sc->flags |= SC_SCRN_BLANKED; 2490 ++scrn_blanked; 2491 } else { 2492 scp->status &= ~SAVER_RUNNING; 2493 sc->flags &= ~SC_SCRN_BLANKED; 2494 --scrn_blanked; 2495 } 2496 crit_exit(); 2497 taskqueue_enqueue(taskqueue_thread[0], sc->fb_blank_task); 2498 } 2499 2500 static int 2501 scsplash_callback(int event, void *arg) 2502 { 2503 sc_softc_t *sc; 2504 int error; 2505 2506 sc = (sc_softc_t *)arg; 2507 2508 switch (event) { 2509 case SPLASH_INIT: 2510 if (add_scrn_saver(scsplash_saver) == 0) { 2511 sc->flags &= ~SC_SAVER_FAILED; 2512 run_scrn_saver = TRUE; 2513 if (cold) { 2514 scsplash_stick(TRUE); 2515 (*current_saver)(sc, TRUE); 2516 } 2517 } 2518 return 0; 2519 2520 case SPLASH_TERM: 2521 if (current_saver == scsplash_saver) { 2522 scsplash_stick(FALSE); 2523 error = remove_scrn_saver(scsplash_saver); 2524 if (error) { 2525 return error; 2526 } 2527 } 2528 return 0; 2529 2530 default: 2531 return EINVAL; 2532 } 2533 } 2534 2535 static void 2536 scsplash_saver(sc_softc_t *sc, int show) 2537 { 2538 static int busy = FALSE; 2539 scr_stat *scp; 2540 2541 if (busy) 2542 return; 2543 busy = TRUE; 2544 2545 scp = sc->cur_scp; 2546 if (show) { 2547 if (!(sc->flags & SC_SAVER_FAILED)) { 2548 if (!(sc->flags & SC_SCRN_BLANKED)) 2549 set_scrn_saver_mode(scp, -1, NULL, 0); 2550 switch (splash(sc->adp, TRUE)) { 2551 case 0: /* succeeded */ 2552 break; 2553 case EAGAIN: /* try later */ 2554 restore_scrn_saver_mode(scp, FALSE); 2555 sc_touch_scrn_saver(); /* XXX */ 2556 break; 2557 default: 2558 sc->flags |= SC_SAVER_FAILED; 2559 scsplash_stick(FALSE); 2560 restore_scrn_saver_mode(scp, TRUE); 2561 kprintf("scsplash_saver(): failed to put up the image\n"); 2562 break; 2563 } 2564 } 2565 } else if (!sticky_splash) { 2566 if ((sc->flags & SC_SCRN_BLANKED) && (splash(sc->adp, FALSE) == 0)) 2567 restore_scrn_saver_mode(scp, TRUE); 2568 } 2569 busy = FALSE; 2570 } 2571 2572 static int 2573 add_scrn_saver(void (*this_saver)(sc_softc_t *, int)) 2574 { 2575 #if 0 2576 int error; 2577 2578 if (current_saver != none_saver) { 2579 error = remove_scrn_saver(current_saver); 2580 if (error) 2581 return error; 2582 } 2583 #endif 2584 if (current_saver != none_saver) { 2585 return EBUSY; 2586 } 2587 2588 run_scrn_saver = FALSE; 2589 saver_mode = CONS_LKM_SAVER; 2590 current_saver = this_saver; 2591 return 0; 2592 } 2593 2594 static int 2595 remove_scrn_saver(void (*this_saver)(sc_softc_t *, int)) 2596 { 2597 if (current_saver != this_saver) 2598 return EINVAL; 2599 2600 #if 0 2601 /* 2602 * In order to prevent `current_saver' from being called by 2603 * the timeout routine `scrn_timer()' while we manipulate 2604 * the saver list, we shall set `current_saver' to `none_saver' 2605 * before stopping the current saver, rather than blocking by `splXX()'. 2606 */ 2607 current_saver = none_saver; 2608 if (scrn_blanked) 2609 stop_scrn_saver(this_saver); 2610 #endif 2611 /* unblank all blanked screens */ 2612 wait_scrn_saver_stop(NULL, FALSE); 2613 if (scrn_blanked) { 2614 return EBUSY; 2615 } 2616 2617 current_saver = none_saver; 2618 return 0; 2619 } 2620 2621 static int 2622 set_scrn_saver_mode(scr_stat *scp, int mode, u_char *pal, int border) 2623 { 2624 2625 /* assert(scp == scp->sc->cur_scp) */ 2626 crit_enter(); 2627 if (!ISGRAPHSC(scp)) 2628 sc_remove_cursor_image(scp); 2629 scp->splash_save_mode = scp->mode; 2630 scp->splash_save_status = scp->status & (GRAPHICS_MODE | PIXEL_MODE); 2631 scp->status &= ~(GRAPHICS_MODE | PIXEL_MODE); 2632 scp->status |= (UNKNOWN_MODE | SAVER_RUNNING); 2633 scp->sc->flags |= SC_SCRN_BLANKED; 2634 ++scrn_blanked; 2635 crit_exit(); 2636 if (mode < 0) { 2637 return 0; 2638 } 2639 scp->mode = mode; 2640 if (set_mode(scp) == 0) { 2641 if (scp->sc->fbi == NULL && 2642 scp->sc->adp->va_info.vi_flags & V_INFO_GRAPHICS) { 2643 scp->status |= GRAPHICS_MODE; 2644 } 2645 if (scp->sc->fbi == NULL && pal != NULL) 2646 load_palette(scp->sc->adp, pal); 2647 sc_set_border(scp, border); 2648 return 0; 2649 } else { 2650 crit_enter(); 2651 scp->mode = scp->splash_save_mode; 2652 scp->status &= ~(UNKNOWN_MODE | SAVER_RUNNING); 2653 scp->status |= scp->splash_save_status; 2654 crit_exit(); 2655 return 1; 2656 } 2657 /* NOTREACHED */ 2658 } 2659 2660 static int 2661 restore_scrn_saver_mode(scr_stat *scp, int changemode) 2662 { 2663 int mode; 2664 int status; 2665 2666 /* assert(scp == scp->sc->cur_scp) */ 2667 crit_enter(); 2668 mode = scp->mode; 2669 status = scp->status; 2670 scp->mode = scp->splash_save_mode; 2671 scp->status &= ~(UNKNOWN_MODE | SAVER_RUNNING); 2672 scp->status |= scp->splash_save_status; 2673 scp->sc->flags &= ~SC_SCRN_BLANKED; 2674 if (!changemode) { 2675 if (!ISGRAPHSC(scp)) 2676 sc_draw_cursor_image(scp); 2677 --scrn_blanked; 2678 crit_exit(); 2679 return 0; 2680 } 2681 if (set_mode(scp) == 0) { 2682 if (scp->sc->fbi == NULL) 2683 load_palette(scp->sc->adp, scp->sc->palette); 2684 --scrn_blanked; 2685 crit_exit(); 2686 return 0; 2687 } else { 2688 scp->mode = mode; 2689 scp->status = status; 2690 crit_exit(); 2691 return 1; 2692 } 2693 /* NOTREACHED */ 2694 } 2695 2696 static void 2697 stop_scrn_saver(sc_softc_t *sc, void (*saver)(sc_softc_t *, int)) 2698 { 2699 (*saver)(sc, FALSE); 2700 run_scrn_saver = FALSE; 2701 /* the screen saver may have chosen not to stop after all... */ 2702 if (sc->flags & SC_SCRN_BLANKED) { 2703 return; 2704 } 2705 2706 mark_all(sc->cur_scp); 2707 if (sc->delayed_next_scr) 2708 sc_switch_scr(sc, sc->delayed_next_scr - 1); 2709 wakeup(&scrn_blanked); 2710 } 2711 2712 static int 2713 wait_scrn_saver_stop(sc_softc_t *sc, int need_unlock) 2714 { 2715 int error = 0; 2716 2717 while (scrn_blanked > 0) { 2718 run_scrn_saver = FALSE; 2719 if (sc && !(sc->flags & SC_SCRN_BLANKED)) { 2720 error = 0; 2721 break; 2722 } 2723 if (need_unlock) { 2724 tsleep_interlock(&scrn_blanked, PCATCH); 2725 syscons_unlock(); 2726 error = tsleep(&scrn_blanked, PCATCH | PINTERLOCKED, "scrsav", 0); 2727 syscons_lock(); 2728 } else { 2729 error = tsleep(&scrn_blanked, PCATCH, "scrsav", 0); 2730 } 2731 /* May return ERESTART */ 2732 if (error) 2733 break; 2734 } 2735 run_scrn_saver = FALSE; 2736 return error; 2737 } 2738 #endif /* NSPLASH */ 2739 2740 void 2741 sc_start_scrn_saver(sc_softc_t *sc) 2742 { 2743 #if NSPLASH > 0 2744 (*current_saver)(sc, TRUE); 2745 #endif 2746 } 2747 2748 void 2749 sc_stop_scrn_saver(sc_softc_t *sc) 2750 { 2751 #if NSPLASH > 0 2752 if (sc->flags & SC_SCRN_BLANKED) 2753 stop_scrn_saver(sc, current_saver); 2754 #endif 2755 } 2756 2757 void 2758 sc_touch_scrn_saver(void) 2759 { 2760 scsplash_stick(FALSE); 2761 run_scrn_saver = FALSE; 2762 } 2763 2764 int 2765 sc_switch_scr(sc_softc_t *sc, u_int next_scr) 2766 { 2767 scr_stat *cur_scp; 2768 struct tty *tp; 2769 2770 DPRINTF(5, ("sc0: sc_switch_scr() %d ", next_scr + 1)); 2771 2772 /* prevent switch if previously requested */ 2773 if (sc->flags & SC_SCRN_VTYLOCK) { 2774 sc_bell(sc->cur_scp, sc->cur_scp->bell_pitch, 2775 sc->cur_scp->bell_duration); 2776 return EPERM; 2777 } 2778 2779 /* delay switch if the screen is blanked or being updated */ 2780 if ((sc->flags & SC_SCRN_BLANKED) || sc->write_in_progress 2781 || sc->blink_in_progress || sc->videoio_in_progress) { 2782 sc->delayed_next_scr = next_scr + 1; 2783 sc_touch_scrn_saver(); 2784 DPRINTF(5, ("switch delayed\n")); 2785 return 0; 2786 } 2787 2788 cur_scp = sc->cur_scp; 2789 2790 /* 2791 * we are in the middle of the vty switching process... 2792 * 2793 * This may be in the console path, be very careful. pfindn() is 2794 * still going to use a spinlock but it no longer uses tokens so 2795 * we should be ok. 2796 */ 2797 if (sc->switch_in_progress && 2798 (cur_scp->smode.mode == VT_PROCESS) && 2799 cur_scp->proc) { 2800 if (cur_scp->proc != pfindn(cur_scp->pid)) { 2801 /* 2802 * The controlling process has died!!. Do some clean up. 2803 * NOTE:`cur_scp->proc' and `cur_scp->smode.mode' 2804 * are not reset here yet; they will be cleared later. 2805 */ 2806 DPRINTF(5, ("cur_scp controlling process %d died, ", cur_scp->pid)); 2807 if (cur_scp->status & SWITCH_WAIT_REL) { 2808 /* 2809 * Force the previous switch to finish, but return now 2810 * with error. 2811 * 2812 */ 2813 DPRINTF(5, ("reset WAIT_REL, ")); 2814 finish_vt_rel(cur_scp, TRUE); 2815 DPRINTF(5, ("finishing previous switch\n")); 2816 return EINVAL; 2817 } else if (cur_scp->status & SWITCH_WAIT_ACQ) { 2818 /* let's assume screen switch has been completed. */ 2819 DPRINTF(5, ("reset WAIT_ACQ, ")); 2820 finish_vt_acq(cur_scp); 2821 } else { 2822 /* 2823 * We are in between screen release and acquisition, and 2824 * reached here via scgetc() or scrn_timer() which has 2825 * interrupted exchange_scr(). Don't do anything stupid. 2826 */ 2827 DPRINTF(5, ("waiting nothing, ")); 2828 } 2829 } else { 2830 /* 2831 * The controlling process is alive, but not responding... 2832 * It is either buggy or it may be just taking time. 2833 * The following code is a gross kludge to cope with this 2834 * problem for which there is no clean solution. XXX 2835 */ 2836 if (cur_scp->status & SWITCH_WAIT_REL) { 2837 switch (sc->switch_in_progress++) { 2838 case 1: 2839 break; 2840 case 2: 2841 DPRINTF(5, ("sending relsig again, ")); 2842 signal_vt_rel(cur_scp); 2843 break; 2844 case 3: 2845 break; 2846 case 4: 2847 default: 2848 /* 2849 * Act as if the controlling program returned 2850 * VT_FALSE. 2851 * 2852 */ 2853 DPRINTF(5, ("force reset WAIT_REL, ")); 2854 finish_vt_rel(cur_scp, FALSE); 2855 DPRINTF(5, ("act as if VT_FALSE was seen\n")); 2856 return EINVAL; 2857 } 2858 } else if (cur_scp->status & SWITCH_WAIT_ACQ) { 2859 switch (sc->switch_in_progress++) { 2860 case 1: 2861 break; 2862 case 2: 2863 DPRINTF(5, ("sending acqsig again, ")); 2864 signal_vt_acq(cur_scp); 2865 break; 2866 case 3: 2867 break; 2868 case 4: 2869 default: 2870 /* clear the flag and finish the previous switch */ 2871 DPRINTF(5, ("force reset WAIT_ACQ, ")); 2872 finish_vt_acq(cur_scp); 2873 break; 2874 } 2875 } 2876 } 2877 } 2878 2879 /* 2880 * Return error if an invalid argument is given, or vty switch 2881 * is still in progress. 2882 */ 2883 if ((next_scr < sc->first_vty) || (next_scr >= sc->first_vty + sc->vtys) 2884 || sc->switch_in_progress) { 2885 sc_bell(cur_scp, bios_value.bell_pitch, BELL_DURATION); 2886 DPRINTF(5, ("error 1\n")); 2887 return EINVAL; 2888 } 2889 2890 /* 2891 * Don't allow switching away from the graphics mode vty 2892 * if the switch mode is VT_AUTO, unless the next vty is the same 2893 * as the current or the current vty has been closed (but showing). 2894 */ 2895 tp = VIRTUAL_TTY(sc, cur_scp->index); 2896 if ((cur_scp->index != next_scr) 2897 && ISTTYOPEN(tp) 2898 && (cur_scp->smode.mode == VT_AUTO) 2899 && ISGRAPHSC(cur_scp)) { 2900 sc_bell(cur_scp, bios_value.bell_pitch, BELL_DURATION); 2901 DPRINTF(5, ("error, graphics mode\n")); 2902 return EINVAL; 2903 } 2904 2905 /* 2906 * Is the wanted vty open? Don't allow switching to a closed vty. 2907 * If we are in DDB, don't switch to a vty in the VT_PROCESS mode. 2908 * Note that we always allow the user to switch to the kernel 2909 * console even if it is closed. 2910 */ 2911 if ((sc_console == NULL) || (next_scr != sc_console->index)) { 2912 tp = VIRTUAL_TTY(sc, next_scr); 2913 if (!ISTTYOPEN(tp)) { 2914 sc_bell(cur_scp, bios_value.bell_pitch, BELL_DURATION); 2915 DPRINTF(5, ("error 2, requested vty isn't open!\n")); 2916 return EINVAL; 2917 } 2918 if ((debugger > 0) && (SC_STAT(tp->t_dev)->smode.mode == VT_PROCESS)) { 2919 DPRINTF(5, ("error 3, requested vty is in the VT_PROCESS mode\n")); 2920 return EINVAL; 2921 } 2922 } 2923 2924 /* this is the start of vty switching process... */ 2925 ++sc->switch_in_progress; 2926 sc->delayed_next_scr = 0; 2927 sc->old_scp = cur_scp; 2928 sc->new_scp = SC_STAT(SC_DEV(sc, next_scr)); 2929 if (sc->new_scp == sc->old_scp) { 2930 sc->switch_in_progress = 0; 2931 wakeup((caddr_t)&sc->new_scp->smode); 2932 DPRINTF(5, ("switch done (new == old)\n")); 2933 return 0; 2934 } 2935 2936 /* has controlling process died? */ 2937 vt_proc_alive(sc->old_scp); 2938 vt_proc_alive(sc->new_scp); 2939 2940 /* wait for the controlling process to release the screen, if necessary */ 2941 if (signal_vt_rel(sc->old_scp)) { 2942 return 0; 2943 } 2944 2945 /* go set up the new vty screen */ 2946 exchange_scr(sc); 2947 2948 /* wake up processes waiting for this vty */ 2949 wakeup((caddr_t)&sc->cur_scp->smode); 2950 2951 /* wait for the controlling process to acknowledge, if necessary */ 2952 if (signal_vt_acq(sc->cur_scp)) { 2953 return 0; 2954 } 2955 2956 sc->switch_in_progress = 0; 2957 if (sc->unit == sc_console_unit && !sc->fb_blanked) 2958 cons_unavail = FALSE; 2959 DPRINTF(5, ("switch done\n")); 2960 2961 return 0; 2962 } 2963 2964 static void 2965 do_switch_scr(sc_softc_t *sc) 2966 { 2967 lwkt_gettoken(&vga_token); 2968 vt_proc_alive(sc->new_scp); 2969 2970 exchange_scr(sc); 2971 /* sc->cur_scp == sc->new_scp */ 2972 wakeup((caddr_t)&sc->cur_scp->smode); 2973 2974 /* wait for the controlling process to acknowledge, if necessary */ 2975 if (!signal_vt_acq(sc->cur_scp)) { 2976 sc->switch_in_progress = 0; 2977 if (sc->unit == sc_console_unit && !sc->fb_blanked) 2978 cons_unavail = FALSE; 2979 } 2980 lwkt_reltoken(&vga_token); 2981 } 2982 2983 static int 2984 vt_proc_alive(scr_stat *scp) 2985 { 2986 lwkt_gettoken(&vga_token); 2987 if (scp->proc) { 2988 if (scp->proc == pfindn(scp->pid)) { 2989 lwkt_reltoken(&vga_token); 2990 return TRUE; 2991 } 2992 scp->proc = NULL; 2993 scp->smode.mode = VT_AUTO; 2994 DPRINTF(5, ("vt controlling process %d died\n", scp->pid)); 2995 } 2996 lwkt_reltoken(&vga_token); 2997 return FALSE; 2998 } 2999 3000 static int 3001 signal_vt_rel(scr_stat *scp) 3002 { 3003 struct proc *p; 3004 3005 lwkt_gettoken(&vga_token); 3006 if (scp->smode.mode != VT_PROCESS) { 3007 lwkt_reltoken(&vga_token); 3008 return FALSE; 3009 } 3010 scp->status |= SWITCH_WAIT_REL; 3011 p = scp->proc; 3012 PHOLD(p); 3013 ksignal(p, scp->smode.relsig); 3014 PRELE(p); 3015 DPRINTF(5, ("sending relsig to %d\n", scp->pid)); 3016 lwkt_reltoken(&vga_token); 3017 3018 return TRUE; 3019 } 3020 3021 static int 3022 signal_vt_acq(scr_stat *scp) 3023 { 3024 struct proc *p; 3025 3026 lwkt_gettoken(&vga_token); 3027 if (scp->smode.mode != VT_PROCESS) { 3028 lwkt_reltoken(&vga_token); 3029 return FALSE; 3030 } 3031 if (scp->sc->unit == sc_console_unit) 3032 cons_unavail = TRUE; 3033 scp->status |= SWITCH_WAIT_ACQ; 3034 p = scp->proc; 3035 PHOLD(p); 3036 ksignal(p, scp->smode.acqsig); 3037 PRELE(p); 3038 DPRINTF(5, ("sending acqsig to %d\n", scp->pid)); 3039 lwkt_reltoken(&vga_token); 3040 3041 return TRUE; 3042 } 3043 3044 static int 3045 finish_vt_rel(scr_stat *scp, int release) 3046 { 3047 lwkt_gettoken(&vga_token); 3048 if (scp == scp->sc->old_scp && scp->status & SWITCH_WAIT_REL) { 3049 scp->status &= ~SWITCH_WAIT_REL; 3050 if (release) 3051 do_switch_scr(scp->sc); 3052 else 3053 scp->sc->switch_in_progress = 0; 3054 lwkt_reltoken(&vga_token); 3055 return 0; 3056 } 3057 lwkt_reltoken(&vga_token); 3058 return EINVAL; 3059 } 3060 3061 static int 3062 finish_vt_acq(scr_stat *scp) 3063 { 3064 lwkt_gettoken(&vga_token); 3065 if (scp == scp->sc->new_scp && scp->status & SWITCH_WAIT_ACQ) { 3066 scp->status &= ~SWITCH_WAIT_ACQ; 3067 scp->sc->switch_in_progress = 0; 3068 lwkt_reltoken(&vga_token); 3069 return 0; 3070 } 3071 lwkt_reltoken(&vga_token); 3072 return EINVAL; 3073 } 3074 3075 static void 3076 exchange_scr(sc_softc_t *sc) 3077 { 3078 scr_stat *scp; 3079 3080 lwkt_gettoken(&vga_token); 3081 /* save the current state of video and keyboard */ 3082 sc_move_cursor(sc->old_scp, sc->old_scp->xpos, sc->old_scp->ypos); 3083 if (!ISGRAPHSC(sc->old_scp)) 3084 sc_remove_cursor_image(sc->old_scp); 3085 if (sc->old_scp->kbd_mode == K_XLATE) 3086 save_kbd_state(sc->old_scp, TRUE); 3087 3088 /* set up the video for the new screen */ 3089 scp = sc->cur_scp = sc->new_scp; 3090 if (sc->old_scp->mode != scp->mode || ISUNKNOWNSC(sc->old_scp)) 3091 set_mode(scp); 3092 else if (sc->adp != NULL) 3093 sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, scp->xsize, scp->ysize, 3094 (void *)sc->adp->va_window, FALSE); 3095 scp->status |= MOUSE_HIDDEN; 3096 sc_update_render(scp); /* Switch to kms renderer if necessary */ 3097 sc_move_cursor(scp, scp->xpos, scp->ypos); 3098 if (!ISGRAPHSC(scp)) 3099 sc_set_cursor_image(scp); 3100 if (sc->fbi == NULL && ISGRAPHSC(sc->old_scp)) 3101 load_palette(sc->adp, sc->palette); 3102 if (!ISGRAPHSC(scp) || sc->fbi == NULL) 3103 sc_set_border(scp, scp->border); 3104 3105 /* set up the keyboard for the new screen */ 3106 if (sc->old_scp->kbd_mode != scp->kbd_mode) 3107 kbd_ioctl(sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode); 3108 update_kbd_state(scp, scp->status, LOCK_MASK, TRUE); 3109 3110 mark_all(scp); 3111 3112 /* 3113 * Restore DRM framebuffer console mode if necessary. 3114 * Especially avoid modesetting when switching to a vt which is in 3115 * graphics mode, because the fb_set_par() from the taskqueue thread 3116 * might race with the modesetting ioctl from the userland application. 3117 */ 3118 if (!ISTEXTSC(sc->old_scp) && 3119 sc->fbi != NULL && sc->fbi->fbops.fb_set_par != NULL && 3120 sc->fb_set_par_task != NULL) { 3121 taskqueue_enqueue(taskqueue_thread[0], sc->fb_set_par_task); 3122 } 3123 3124 lwkt_reltoken(&vga_token); 3125 } 3126 3127 static void 3128 sc_puts(scr_stat *scp, u_char *buf, int len) 3129 { 3130 #if NSPLASH > 0 3131 /* make screensaver happy */ 3132 if (!sticky_splash && scp == scp->sc->cur_scp) 3133 run_scrn_saver = FALSE; 3134 #endif 3135 3136 if (scp->tsw) 3137 (*scp->tsw->te_puts)(scp, buf, len); 3138 3139 if (scp->sc->delayed_next_scr) 3140 sc_switch_scr(scp->sc, scp->sc->delayed_next_scr - 1); 3141 3142 } 3143 3144 void 3145 sc_draw_cursor_image(scr_stat *scp) 3146 { 3147 /* assert(scp == scp->sc->cur_scp); */ 3148 atomic_add_int(&scp->sc->videoio_in_progress, 1); 3149 (*scp->rndr->draw_cursor)(scp, scp->cursor_pos, 3150 scp->sc->flags & SC_BLINK_CURSOR, TRUE, 3151 sc_inside_cutmark(scp, scp->cursor_pos)); 3152 scp->cursor_oldpos = scp->cursor_pos; 3153 atomic_add_int(&scp->sc->videoio_in_progress, -1); 3154 } 3155 3156 void 3157 sc_remove_cursor_image(scr_stat *scp) 3158 { 3159 /* assert(scp == scp->sc->cur_scp); */ 3160 atomic_add_int(&scp->sc->videoio_in_progress, 1); 3161 (*scp->rndr->draw_cursor)(scp, scp->cursor_oldpos, 3162 scp->sc->flags & SC_BLINK_CURSOR, FALSE, 3163 sc_inside_cutmark(scp, scp->cursor_oldpos)); 3164 atomic_add_int(&scp->sc->videoio_in_progress, -1); 3165 } 3166 3167 static void 3168 update_cursor_image(scr_stat *scp) 3169 { 3170 int blink; 3171 3172 if (scp->sc->flags & SC_CHAR_CURSOR) { 3173 scp->cursor_base = imax(0, scp->sc->cursor_base); 3174 scp->cursor_height = imin(scp->sc->cursor_height, scp->font_height); 3175 } else { 3176 scp->cursor_base = 0; 3177 scp->cursor_height = scp->font_height; 3178 } 3179 blink = scp->sc->flags & SC_BLINK_CURSOR; 3180 3181 /* assert(scp == scp->sc->cur_scp); */ 3182 atomic_add_int(&scp->sc->videoio_in_progress, 1); 3183 (*scp->rndr->draw_cursor)(scp, scp->cursor_oldpos, blink, FALSE, 3184 sc_inside_cutmark(scp, scp->cursor_pos)); 3185 (*scp->rndr->set_cursor)(scp, scp->cursor_base, scp->cursor_height, blink); 3186 (*scp->rndr->draw_cursor)(scp, scp->cursor_pos, blink, TRUE, 3187 sc_inside_cutmark(scp, scp->cursor_pos)); 3188 atomic_add_int(&scp->sc->videoio_in_progress, -1); 3189 } 3190 3191 void 3192 sc_set_cursor_image(scr_stat *scp) 3193 { 3194 if (scp->sc->flags & SC_CHAR_CURSOR) { 3195 scp->cursor_base = imax(0, scp->sc->cursor_base); 3196 scp->cursor_height = imin(scp->sc->cursor_height, scp->font_height); 3197 } else { 3198 scp->cursor_base = 0; 3199 scp->cursor_height = scp->font_height; 3200 } 3201 3202 /* assert(scp == scp->sc->cur_scp); */ 3203 atomic_add_int(&scp->sc->videoio_in_progress, 1); 3204 (*scp->rndr->set_cursor)(scp, scp->cursor_base, scp->cursor_height, 3205 scp->sc->flags & SC_BLINK_CURSOR); 3206 atomic_add_int(&scp->sc->videoio_in_progress, -1); 3207 } 3208 3209 static void 3210 scinit(int unit, int flags) 3211 { 3212 /* 3213 * When syscons is being initialized as the kernel console, malloc() 3214 * is not yet functional, because various kernel structures has not been 3215 * fully initialized yet. Therefore, we need to declare the following 3216 * static buffers for the console. This is less than ideal, 3217 * but is necessry evil for the time being. XXX 3218 */ 3219 static scr_stat main_console; 3220 static u_short sc_buffer[2*ROW*2*COL]; /* XXX */ 3221 #ifndef SC_NO_FONT_LOADING 3222 static u_char font_8[256*8]; 3223 static u_char font_14[256*14]; 3224 static u_char font_16[256*16]; 3225 #endif 3226 3227 sc_softc_t *sc; 3228 scr_stat *scp; 3229 video_adapter_t *adp; 3230 char tbuf[MAKEDEV_MINNBUF]; 3231 int col; 3232 int row; 3233 int i; 3234 3235 /* one time initialization */ 3236 if (init_done == COLD) 3237 sc_get_bios_values(&bios_value); 3238 init_done = WARM; 3239 3240 /* 3241 * Allocate resources. Even if we are being called for the second 3242 * time, we must allocate them again, because they might have 3243 * disappeared... 3244 */ 3245 sc = sc_get_softc(unit, flags & SC_KERNEL_CONSOLE); 3246 adp = NULL; 3247 if (flags & SC_EFI_FB) { 3248 /* Don't replace already registered drm framebuffer here */ 3249 if (sc->fbi == NULL) { 3250 sc->fbi = &efi_fb_info; 3251 sc->fbi_generation++; 3252 } 3253 } else if (sc->adapter >= 0) { 3254 vid_release(sc->adp, (void *)&sc->adapter); 3255 adp = sc->adp; 3256 } 3257 sc->adp = NULL; 3258 if (sc->keyboard >= 0) { 3259 DPRINTF(5, ("sc%d: releasing kbd%d\n", unit, sc->keyboard)); 3260 i = kbd_release(sc->kbd, (void *)&sc->keyboard); 3261 DPRINTF(5, ("sc%d: kbd_release returned %d\n", unit, i)); 3262 if (sc->kbd != NULL) { 3263 DPRINTF(5, ("sc%d: kbd != NULL!, index:%d, unit:%d, flags:0x%x\n", 3264 unit, sc->kbd->kb_index, sc->kbd->kb_unit, sc->kbd->kb_flags)); 3265 } 3266 sc->kbd = NULL; 3267 } 3268 if (!(flags & SC_EFI_FB)) { 3269 sc->adapter = vid_allocate("*", unit, (void *)&sc->adapter); 3270 sc->adp = vid_get_adapter(sc->adapter); 3271 /* assert((sc->adapter >= 0) && (sc->adp != NULL)) */ 3272 } 3273 sc->keyboard = sc_allocate_keyboard(sc, unit); 3274 DPRINTF(1, ("sc%d: keyboard %d\n", unit, sc->keyboard)); 3275 sc->kbd = kbd_get_keyboard(sc->keyboard); 3276 if (sc->kbd != NULL) { 3277 DPRINTF(1, ("sc%d: kbd index:%d, unit:%d, flags:0x%x\n", 3278 unit, sc->kbd->kb_index, sc->kbd->kb_unit, sc->kbd->kb_flags)); 3279 } 3280 3281 if (!(sc->flags & SC_INIT_DONE) || (adp != sc->adp)) { 3282 3283 if (sc->fbi != NULL) 3284 sc->initial_mode = 0; 3285 else 3286 sc->initial_mode = sc->adp->va_initial_mode; 3287 3288 #ifndef SC_NO_FONT_LOADING 3289 if (flags & SC_KERNEL_CONSOLE) { 3290 sc->font_8 = font_8; 3291 sc->font_14 = font_14; 3292 sc->font_16 = font_16; 3293 } else if (sc->font_8 == NULL) { 3294 /* assert(sc_malloc) */ 3295 sc->font_8 = kmalloc(sizeof(font_8), M_SYSCONS, M_WAITOK); 3296 sc->font_14 = kmalloc(sizeof(font_14), M_SYSCONS, M_WAITOK); 3297 sc->font_16 = kmalloc(sizeof(font_16), M_SYSCONS, M_WAITOK); 3298 } 3299 #endif 3300 3301 if (sc->fbi != NULL) { 3302 col = 0; 3303 row = 0; 3304 } else { 3305 lwkt_gettoken(&vga_token); 3306 /* extract the hw cursor location and hide the cursor for now */ 3307 (*vidsw[sc->adapter]->read_hw_cursor)(sc->adp, &col, &row); 3308 (*vidsw[sc->adapter]->set_hw_cursor)(sc->adp, -1, -1); 3309 lwkt_reltoken(&vga_token); 3310 } 3311 3312 /* set up the first console */ 3313 sc->first_vty = unit*MAXCONS; 3314 sc->vtys = MAXCONS; /* XXX: should be configurable */ 3315 if (flags & SC_KERNEL_CONSOLE) { 3316 scp = &main_console; 3317 sc->console_scp = scp; 3318 init_scp(sc, sc->first_vty, scp); 3319 sc_vtb_init(&scp->vtb, VTB_MEMORY, scp->xsize, scp->ysize, 3320 (void *)sc_buffer, FALSE); 3321 if (sc_init_emulator(scp, SC_DFLT_TERM)) 3322 sc_init_emulator(scp, "*"); 3323 (*scp->tsw->te_default_attr)(scp, 3324 kernel_default.std_color, 3325 kernel_default.rev_color); 3326 } else { 3327 /* assert(sc_malloc) */ 3328 sc->dev = kmalloc(sizeof(cdev_t)*sc->vtys, M_SYSCONS, M_WAITOK | M_ZERO); 3329 3330 sc->dev[0] = make_dev(&sc_ops, unit*MAXCONS, UID_ROOT, 3331 GID_WHEEL, 0600, "ttyv%s", 3332 makedev_unit_b32(tbuf, unit * MAXCONS)); 3333 3334 ttymalloc(&sc->dev[0]->si_tty); 3335 scp = alloc_scp(sc, sc->first_vty); 3336 sc->dev[0]->si_drv1 = scp; 3337 } 3338 sc->cur_scp = scp; 3339 3340 /* copy screen to temporary buffer */ 3341 if (scp->sc->fbi == NULL) { 3342 sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, scp->xsize, scp->ysize, 3343 (void *)scp->sc->adp->va_window, FALSE); 3344 if (ISTEXTSC(scp)) 3345 sc_vtb_copy(&scp->scr, 0, &scp->vtb, 0, scp->xsize*scp->ysize); 3346 } 3347 3348 /* move cursors to the initial positions */ 3349 if (col >= scp->xsize) 3350 col = 0; 3351 if (row >= scp->ysize) 3352 row = scp->ysize - 1; 3353 scp->xpos = col; 3354 scp->ypos = row; 3355 if (sc->fbi != NULL) { 3356 scp->cursor_pos = 0; 3357 sc->cursor_base = 0; 3358 sc->cursor_height = scp->font_height; 3359 } else { 3360 scp->cursor_pos = scp->cursor_oldpos = row*scp->xsize + col; 3361 if (bios_value.cursor_end < scp->font_height) 3362 sc->cursor_base = scp->font_height - bios_value.cursor_end - 1; 3363 else 3364 sc->cursor_base = 0; 3365 i = bios_value.cursor_end - bios_value.cursor_start + 1; 3366 sc->cursor_height = imin(i, scp->font_height); 3367 } 3368 #ifndef SC_NO_SYSMOUSE 3369 sc_mouse_move(scp, scp->xpixel/2, scp->ypixel/2); 3370 #endif 3371 if (!ISGRAPHSC(scp)) { 3372 sc_set_cursor_image(scp); 3373 sc_draw_cursor_image(scp); 3374 /* If framebuffer vaddr is still 0, we can't draw the border yet */ 3375 if (scp->sc->fbi != NULL && scp->sc->fbi->vaddr != 0) { 3376 sc_filled_border = TRUE; 3377 sc_set_border(scp, scp->border); 3378 } 3379 } 3380 3381 /* save font and palette */ 3382 #ifndef SC_NO_FONT_LOADING 3383 sc->fonts_loaded = 0; 3384 #ifdef SC_DFLT_FONT 3385 bcopy(dflt_font_8, sc->font_8, sizeof(dflt_font_8)); 3386 bcopy(dflt_font_14, sc->font_14, sizeof(dflt_font_14)); 3387 bcopy(dflt_font_16, sc->font_16, sizeof(dflt_font_16)); 3388 sc->fonts_loaded = FONT_16 | FONT_14 | FONT_8; 3389 #endif /* SC_DFLT_FONT */ 3390 if (sc->adp != NULL && ISFONTAVAIL(sc->adp->va_flags)) { 3391 #ifdef SC_DFLT_FONT 3392 if (scp->font_height < 14) { 3393 sc_load_font(scp, 0, 8, sc->font_8, 0, 256); 3394 } else if (scp->font_height >= 16) { 3395 sc_load_font(scp, 0, 16, sc->font_16, 0, 256); 3396 } else { 3397 sc_load_font(scp, 0, 14, sc->font_14, 0, 256); 3398 } 3399 #else /* !SC_DFLT_FONT */ 3400 if (scp->font_height < 14) { 3401 sc_save_font(scp, 0, 8, sc->font_8, 0, 256); 3402 sc->fonts_loaded = FONT_8; 3403 } else if (scp->font_height >= 16) { 3404 sc_save_font(scp, 0, 16, sc->font_16, 0, 256); 3405 sc->fonts_loaded = FONT_16; 3406 } else { 3407 sc_save_font(scp, 0, 14, sc->font_14, 0, 256); 3408 sc->fonts_loaded = FONT_14; 3409 } 3410 #endif /* SC_DFLT_FONT */ 3411 /* FONT KLUDGE: always use the font page #0. XXX */ 3412 sc_show_font(scp, 0); 3413 } 3414 #endif /* !SC_NO_FONT_LOADING */ 3415 3416 if (!(flags & SC_EFI_FB)) 3417 save_palette(sc->adp, sc->palette); 3418 3419 #if NSPLASH > 0 3420 if (!(sc->flags & SC_SPLASH_SCRN) && (flags & SC_KERNEL_CONSOLE)) { 3421 /* we are ready to put up the splash image! */ 3422 splash_init(sc->adp, scsplash_callback, sc); 3423 sc->flags |= SC_SPLASH_SCRN; 3424 } 3425 #endif /* NSPLASH */ 3426 } 3427 3428 /* the rest is not necessary, if we have done it once */ 3429 if (sc->flags & SC_INIT_DONE) { 3430 return; 3431 } 3432 3433 /* initialize mapscrn arrays to a one to one map */ 3434 for (i = 0; i < sizeof(sc->scr_map); i++) 3435 sc->scr_map[i] = sc->scr_rmap[i] = i; 3436 3437 sc->flags |= SC_INIT_DONE; 3438 } 3439 3440 #if 0 3441 static void 3442 scterm(int unit, int flags) 3443 { 3444 sc_softc_t *sc; 3445 scr_stat *scp; 3446 3447 sc = sc_get_softc(unit, flags & SC_KERNEL_CONSOLE); 3448 if (sc == NULL) 3449 return; /* shouldn't happen */ 3450 3451 lwkt_gettoken(&vga_token); 3452 #if NSPLASH > 0 3453 /* this console is no longer available for the splash screen */ 3454 if (sc->flags & SC_SPLASH_SCRN) { 3455 splash_term(sc->adp); 3456 sc->flags &= ~SC_SPLASH_SCRN; 3457 } 3458 #endif /* NSPLASH */ 3459 3460 #if 0 /* XXX */ 3461 /* move the hardware cursor to the upper-left corner */ 3462 (*vidsw[sc->adapter]->set_hw_cursor)(sc->adp, 0, 0); 3463 #endif 3464 3465 /* release the keyboard and the video card */ 3466 if (sc->keyboard >= 0) 3467 kbd_release(sc->kbd, &sc->keyboard); 3468 if (sc->adapter >= 0) 3469 vid_release(sc->adp, &sc->adapter); 3470 3471 /* 3472 * Stop the terminal emulator, if any. If operating on the 3473 * kernel console sc->dev may not be setup yet. 3474 */ 3475 if (flags & SC_KERNEL_CONSOLE) 3476 scp = sc->console_scp; 3477 else 3478 scp = SC_STAT(sc->dev[0]); 3479 if (scp->tsw) 3480 (*scp->tsw->te_term)(scp, &scp->ts); 3481 if (scp->ts != NULL) 3482 kfree(scp->ts, M_SYSCONS); 3483 3484 /* clear the structure */ 3485 if (!(flags & SC_KERNEL_CONSOLE)) { 3486 /* XXX: We need delete_dev() for this */ 3487 kfree(sc->dev, M_SYSCONS); 3488 #if 0 3489 /* XXX: We need a ttyunregister for this */ 3490 /* XXX: do not race tty token access */ 3491 kfree(sc->tty, M_SYSCONS); 3492 #endif 3493 #ifndef SC_NO_FONT_LOADING 3494 kfree(sc->font_8, M_SYSCONS); 3495 kfree(sc->font_14, M_SYSCONS); 3496 kfree(sc->font_16, M_SYSCONS); 3497 #endif 3498 /* XXX vtb, history */ 3499 } 3500 bzero(sc, sizeof(*sc)); 3501 sc->keyboard = -1; 3502 sc->adapter = -1; 3503 lwkt_reltoken(&vga_token); 3504 } 3505 #endif 3506 3507 static void 3508 scshutdown(void *arg, int howto) 3509 { 3510 /* assert(sc_console != NULL) */ 3511 3512 lwkt_gettoken(&vga_token); 3513 syscons_lock(); 3514 sc_touch_scrn_saver(); 3515 if (!cold && sc_console 3516 && sc_console->sc->cur_scp->smode.mode == VT_AUTO 3517 && sc_console->smode.mode == VT_AUTO) { 3518 sc_switch_scr(sc_console->sc, sc_console->index); 3519 } 3520 shutdown_in_progress = TRUE; 3521 syscons_unlock(); 3522 lwkt_reltoken(&vga_token); 3523 } 3524 3525 int 3526 sc_clean_up(scr_stat *scp, int need_unlock) 3527 { 3528 #if NSPLASH > 0 3529 int error; 3530 #endif /* NSPLASH */ 3531 3532 lwkt_gettoken(&vga_token); 3533 if (scp->sc->flags & SC_SCRN_BLANKED) { 3534 sc_touch_scrn_saver(); 3535 #if NSPLASH > 0 3536 if ((error = wait_scrn_saver_stop(scp->sc, need_unlock))) { 3537 lwkt_reltoken(&vga_token); 3538 return error; 3539 } 3540 #endif /* NSPLASH */ 3541 } 3542 scp->status |= MOUSE_HIDDEN; 3543 sc_remove_mouse_image(scp); 3544 sc_remove_cutmarking(scp); 3545 lwkt_reltoken(&vga_token); 3546 return 0; 3547 } 3548 3549 void 3550 sc_alloc_scr_buffer(scr_stat *scp, int wait, int discard) 3551 { 3552 sc_vtb_t new; 3553 sc_vtb_t old; 3554 3555 lwkt_gettoken(&vga_token); 3556 old = scp->vtb; 3557 sc_vtb_init(&new, VTB_MEMORY, scp->xsize, scp->ysize, NULL, wait); 3558 if (!discard && (old.vtb_flags & VTB_VALID)) { 3559 /* retain the current cursor position and buffer contants */ 3560 scp->cursor_oldpos = scp->cursor_pos; 3561 /* 3562 * This works only if the old buffer has the same size as or larger 3563 * than the new one. XXX 3564 */ 3565 sc_vtb_copy(&old, 0, &new, 0, scp->xsize*scp->ysize); 3566 scp->vtb = new; 3567 } else { 3568 scp->vtb = new; 3569 sc_vtb_destroy(&old); 3570 } 3571 3572 #ifndef SC_NO_SYSMOUSE 3573 /* move the mouse cursor at the center of the screen */ 3574 sc_mouse_move(scp, scp->xpixel / 2, scp->ypixel / 2); 3575 #endif 3576 lwkt_reltoken(&vga_token); 3577 } 3578 3579 static scr_stat * 3580 alloc_scp(sc_softc_t *sc, int vty) 3581 { 3582 scr_stat *scp; 3583 3584 /* assert(sc_malloc) */ 3585 3586 scp = kmalloc(sizeof(scr_stat), M_SYSCONS, M_WAITOK); 3587 init_scp(sc, vty, scp); 3588 3589 sc_alloc_scr_buffer(scp, TRUE, TRUE); 3590 if (sc_init_emulator(scp, SC_DFLT_TERM)) 3591 sc_init_emulator(scp, "*"); 3592 3593 #ifndef SC_NO_CUTPASTE 3594 sc_alloc_cut_buffer(scp, TRUE); 3595 #endif 3596 3597 #ifndef SC_NO_HISTORY 3598 sc_alloc_history_buffer(scp, 0, 0, TRUE); 3599 #endif 3600 return scp; 3601 } 3602 3603 /* 3604 * NOTE: Must be called with vga_token held. 3605 */ 3606 static void 3607 init_scp(sc_softc_t *sc, int vty, scr_stat *scp) 3608 { 3609 video_info_t info; 3610 3611 bzero(scp, sizeof(*scp)); 3612 3613 scp->index = vty; 3614 scp->sc = sc; 3615 scp->status = 0; 3616 scp->mode = sc->initial_mode; 3617 scp->fbi_generation = sc->fbi_generation; 3618 callout_init_lk(&scp->blink_screen_ch, &syscons_blink_lk); 3619 if (scp->sc->fbi == NULL) { 3620 lwkt_gettoken(&vga_token); 3621 (*vidsw[sc->adapter]->get_info)(sc->adp, scp->mode, &info); 3622 lwkt_reltoken(&vga_token); 3623 } 3624 if (scp->sc->fbi != NULL) { 3625 scp->xpixel = sc->fbi->width; 3626 scp->ypixel = sc->fbi->height; 3627 scp->font_width = 8; 3628 scp->font_height = 16; 3629 3630 /* The first vty uses a statically allocated 160x50 buffer */ 3631 if (vty == sc->first_vty) 3632 sc_font_scale(scp, 2*COL, 2*ROW); 3633 else 3634 sc_font_scale(scp, 0, 0); 3635 3636 #ifndef SC_NO_FONT_LOADING 3637 scp->font = sc->font_16; 3638 #else 3639 scp->font = NULL; 3640 #endif 3641 } else if (info.vi_flags & V_INFO_GRAPHICS) { 3642 scp->status |= GRAPHICS_MODE; 3643 scp->xpixel = info.vi_width; 3644 scp->ypixel = info.vi_height; 3645 scp->xsize = info.vi_width/8; 3646 scp->ysize = info.vi_height/info.vi_cheight; 3647 scp->font_height = 0; 3648 scp->font_width = 0; 3649 scp->font = NULL; 3650 } else { 3651 scp->xsize = info.vi_width; 3652 scp->ysize = info.vi_height; 3653 scp->xpixel = scp->xsize*8; 3654 scp->ypixel = scp->ysize*info.vi_cheight; 3655 scp->font_width = 8; 3656 if (info.vi_cheight < 14) { 3657 scp->font_height = 8; 3658 #ifndef SC_NO_FONT_LOADING 3659 scp->font = sc->font_8; 3660 #else 3661 scp->font = NULL; 3662 #endif 3663 } else if (info.vi_cheight >= 16) { 3664 scp->font_height = 16; 3665 #ifndef SC_NO_FONT_LOADING 3666 scp->font = sc->font_16; 3667 #else 3668 scp->font = NULL; 3669 #endif 3670 } else { 3671 scp->font_height = 14; 3672 #ifndef SC_NO_FONT_LOADING 3673 scp->font = sc->font_14; 3674 #else 3675 scp->font = NULL; 3676 #endif 3677 } 3678 } 3679 scp->xoff = scp->yoff = 0; 3680 scp->xpos = scp->ypos = 0; 3681 sc_vtb_init(&scp->vtb, VTB_MEMORY, 0, 0, NULL, FALSE); 3682 sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, 0, 0, NULL, FALSE); 3683 scp->start = scp->xsize * scp->ysize - 1; 3684 scp->end = 0; 3685 scp->tsw = NULL; 3686 scp->ts = NULL; 3687 scp->rndr = NULL; 3688 scp->border = SC_BORDER_COLOR; 3689 scp->cursor_base = sc->cursor_base; 3690 scp->cursor_height = imin(sc->cursor_height, scp->font_height); 3691 scp->mouse_cut_start = scp->xsize * scp->ysize; 3692 scp->mouse_cut_end = -1; 3693 scp->mouse_signal = 0; 3694 scp->mouse_pid = 0; 3695 scp->mouse_proc = NULL; 3696 scp->kbd_mode = K_XLATE; 3697 scp->bell_pitch = bios_value.bell_pitch; 3698 scp->bell_duration = BELL_DURATION; 3699 scp->status |= (bios_value.shift_state & NLKED); 3700 scp->status |= CURSOR_ENABLED | MOUSE_HIDDEN; 3701 scp->pid = 0; 3702 scp->proc = NULL; 3703 scp->smode.mode = VT_AUTO; 3704 scp->history = NULL; 3705 scp->history_pos = 0; 3706 scp->history_size = 0; 3707 } 3708 3709 int 3710 sc_init_emulator(scr_stat *scp, char *name) 3711 { 3712 sc_term_sw_t *sw; 3713 sc_rndr_sw_t *rndr; 3714 void *p; 3715 int error; 3716 3717 if (name == NULL) /* if no name is given, use the current emulator */ 3718 sw = scp->tsw; 3719 else /* ...otherwise find the named emulator */ 3720 sw = sc_term_match(name); 3721 if (sw == NULL) { 3722 return EINVAL; 3723 } 3724 3725 rndr = NULL; 3726 if (strcmp(sw->te_renderer, "*") != 0) { 3727 rndr = sc_render_match(scp, sw->te_renderer, scp->model); 3728 } 3729 if (rndr == NULL && scp->sc->fbi != NULL) { 3730 rndr = sc_render_match(scp, "kms", scp->model); 3731 } 3732 if (rndr == NULL) { 3733 rndr = sc_render_match(scp, scp->sc->adp->va_name, scp->model); 3734 if (rndr == NULL) { 3735 return ENODEV; 3736 } 3737 } 3738 3739 if (sw == scp->tsw) { 3740 error = (*sw->te_init)(scp, &scp->ts, SC_TE_WARM_INIT); 3741 scp->rndr = rndr; 3742 sc_clear_screen(scp); 3743 /* assert(error == 0); */ 3744 return error; 3745 } 3746 3747 if (sc_malloc && (sw->te_size > 0)) 3748 p = kmalloc(sw->te_size, M_SYSCONS, M_NOWAIT); 3749 else 3750 p = NULL; 3751 error = (*sw->te_init)(scp, &p, SC_TE_COLD_INIT); 3752 if (error) { 3753 return error; 3754 } 3755 3756 if (scp->tsw) 3757 (*scp->tsw->te_term)(scp, &scp->ts); 3758 if (scp->ts != NULL) 3759 kfree(scp->ts, M_SYSCONS); 3760 scp->tsw = sw; 3761 scp->ts = p; 3762 scp->rndr = rndr; 3763 3764 /* XXX */ 3765 (*sw->te_default_attr)(scp, user_default.std_color, user_default.rev_color); 3766 sc_clear_screen(scp); 3767 3768 return 0; 3769 } 3770 3771 /* 3772 * scgetc(flags) - get character from keyboard. 3773 * If flags & SCGETC_CN, then avoid harmful side effects. 3774 * If flags & SCGETC_NONBLOCK, then wait until a key is pressed, else 3775 * return NOKEY if there is nothing there. 3776 */ 3777 static u_int 3778 scgetc(sc_softc_t *sc, u_int flags) 3779 { 3780 scr_stat *scp; 3781 #ifndef SC_NO_HISTORY 3782 struct tty *tp; 3783 #endif 3784 u_int c; 3785 int this_scr; 3786 int f; 3787 int i; 3788 3789 lwkt_gettoken(&vga_token); 3790 if (sc->kbd == NULL) { 3791 lwkt_reltoken(&vga_token); 3792 return NOKEY; 3793 } 3794 3795 next_code: 3796 #if 1 3797 /* I don't like this, but... XXX */ 3798 if (flags & SCGETC_CN) { 3799 syscons_lock(); 3800 sccnupdate(sc->cur_scp); 3801 syscons_unlock(); 3802 } 3803 #endif 3804 scp = sc->cur_scp; 3805 /* first see if there is something in the keyboard port */ 3806 for (;;) { 3807 c = kbd_read_char(sc->kbd, !(flags & SCGETC_NONBLOCK)); 3808 if (c == ERRKEY) { 3809 if (!(flags & SCGETC_CN)) 3810 sc_bell(scp, bios_value.bell_pitch, BELL_DURATION); 3811 } else if (c == NOKEY) { 3812 lwkt_reltoken(&vga_token); 3813 return c; 3814 } else { 3815 break; 3816 } 3817 } 3818 3819 /* make screensaver happy */ 3820 if (!(c & RELKEY)) 3821 sc_touch_scrn_saver(); 3822 3823 if (!(flags & SCGETC_CN)) 3824 /* do the /dev/random device a favour */ 3825 add_keyboard_randomness(c); 3826 3827 if (scp->kbd_mode != K_XLATE) { 3828 lwkt_reltoken(&vga_token); 3829 return KEYCHAR(c); 3830 } 3831 3832 /* if scroll-lock pressed allow history browsing */ 3833 if (!ISGRAPHSC(scp) && scp->history && scp->status & SLKED) { 3834 3835 scp->status &= ~CURSOR_ENABLED; 3836 sc_remove_cursor_image(scp); 3837 3838 #ifndef SC_NO_HISTORY 3839 if (!(scp->status & BUFFER_SAVED)) { 3840 scp->status |= BUFFER_SAVED; 3841 sc_hist_save(scp); 3842 } 3843 switch (c) { 3844 /* FIXME: key codes */ 3845 case SPCLKEY | FKEY | F(49): /* home key */ 3846 sc_remove_cutmarking(scp); 3847 sc_hist_home(scp); 3848 goto next_code; 3849 3850 case SPCLKEY | FKEY | F(57): /* end key */ 3851 sc_remove_cutmarking(scp); 3852 sc_hist_end(scp); 3853 goto next_code; 3854 3855 case SPCLKEY | FKEY | F(50): /* up arrow key */ 3856 sc_remove_cutmarking(scp); 3857 if (sc_hist_up_line(scp)) 3858 if (!(flags & SCGETC_CN)) 3859 sc_bell(scp, bios_value.bell_pitch, BELL_DURATION); 3860 goto next_code; 3861 3862 case SPCLKEY | FKEY | F(58): /* down arrow key */ 3863 sc_remove_cutmarking(scp); 3864 if (sc_hist_down_line(scp)) 3865 if (!(flags & SCGETC_CN)) 3866 sc_bell(scp, bios_value.bell_pitch, BELL_DURATION); 3867 goto next_code; 3868 3869 case SPCLKEY | FKEY | F(51): /* page up key */ 3870 sc_remove_cutmarking(scp); 3871 for (i=0; i<scp->ysize; i++) { 3872 if (sc_hist_up_line(scp)) { 3873 if (!(flags & SCGETC_CN)) 3874 sc_bell(scp, bios_value.bell_pitch, BELL_DURATION); 3875 break; 3876 } 3877 } 3878 goto next_code; 3879 3880 case SPCLKEY | FKEY | F(59): /* page down key */ 3881 sc_remove_cutmarking(scp); 3882 for (i=0; i<scp->ysize; i++) { 3883 if (sc_hist_down_line(scp)) { 3884 if (!(flags & SCGETC_CN)) 3885 sc_bell(scp, bios_value.bell_pitch, BELL_DURATION); 3886 break; 3887 } 3888 } 3889 goto next_code; 3890 } 3891 #endif /* SC_NO_HISTORY */ 3892 } 3893 3894 /* 3895 * Process and consume special keys here. Return a plain char code 3896 * or a char code with the META flag or a function key code. 3897 */ 3898 if (c & RELKEY) { 3899 /* key released */ 3900 /* goto next_code */ 3901 } else { 3902 /* key pressed */ 3903 if (c & SPCLKEY) { 3904 c &= ~SPCLKEY; 3905 switch (KEYCHAR(c)) { 3906 /* LOCKING KEYS */ 3907 case NLK: case CLK: case ALK: 3908 break; 3909 case SLK: 3910 kbd_ioctl(sc->kbd, KDGKBSTATE, (caddr_t)&f); 3911 if (f & SLKED) { 3912 scp->status |= SLKED; 3913 } else { 3914 if (scp->status & SLKED) { 3915 scp->status &= ~SLKED; 3916 #ifndef SC_NO_HISTORY 3917 if (scp->status & BUFFER_SAVED) { 3918 if (!sc_hist_restore(scp)) 3919 sc_remove_cutmarking(scp); 3920 scp->status &= ~BUFFER_SAVED; 3921 scp->status |= CURSOR_ENABLED; 3922 sc_draw_cursor_image(scp); 3923 } 3924 tp = VIRTUAL_TTY(sc, scp->index); 3925 if (ISTTYOPEN(tp)) 3926 scstart(tp); 3927 #endif 3928 } 3929 } 3930 break; 3931 3932 /* NON-LOCKING KEYS */ 3933 case NOP: 3934 case LSH: case RSH: case LCTR: case RCTR: 3935 case LALT: case RALT: case ASH: case META: 3936 break; 3937 3938 case BTAB: 3939 if (!(sc->flags & SC_SCRN_BLANKED)) { 3940 lwkt_reltoken(&vga_token); 3941 return c; 3942 } 3943 break; 3944 3945 case SPSC: 3946 #if NSPLASH > 0 3947 /* force activatation/deactivation of the screen saver */ 3948 if (!(sc->flags & SC_SCRN_BLANKED)) { 3949 run_scrn_saver = TRUE; 3950 sc->scrn_time_stamp -= scrn_blank_time; 3951 } 3952 if (cold) { 3953 /* 3954 * While devices are being probed, the screen saver need 3955 * to be invoked explictly. XXX 3956 */ 3957 if (sc->flags & SC_SCRN_BLANKED) { 3958 scsplash_stick(FALSE); 3959 stop_scrn_saver(sc, current_saver); 3960 } else { 3961 if (!ISGRAPHSC(scp)) { 3962 scsplash_stick(TRUE); 3963 (*current_saver)(sc, TRUE); 3964 } 3965 } 3966 } 3967 #endif /* NSPLASH */ 3968 break; 3969 3970 case RBT: 3971 #ifndef SC_DISABLE_REBOOT 3972 shutdown_nice(0); 3973 #endif 3974 break; 3975 3976 case HALT: 3977 #ifndef SC_DISABLE_REBOOT 3978 shutdown_nice(RB_HALT); 3979 #endif 3980 break; 3981 3982 case PDWN: 3983 #ifndef SC_DISABLE_REBOOT 3984 shutdown_nice(RB_HALT|RB_POWEROFF); 3985 #endif 3986 break; 3987 3988 case SUSP: 3989 case STBY: 3990 break; 3991 3992 case DBG: 3993 #ifndef SC_DISABLE_DDBKEY 3994 #ifdef DDB 3995 lwkt_reltoken(&vga_token); 3996 Debugger("manual escape to debugger"); 3997 lwkt_gettoken(&vga_token); 3998 #else 3999 kprintf("No debugger in kernel\n"); 4000 #endif 4001 #else /* SC_DISABLE_DDBKEY */ 4002 /* do nothing */ 4003 #endif /* SC_DISABLE_DDBKEY */ 4004 break; 4005 4006 case PNC: 4007 if (enable_panic_key) 4008 panic("Forced by the panic key"); 4009 break; 4010 4011 case NEXT: 4012 this_scr = scp->index; 4013 for (i = (this_scr - sc->first_vty + 1)%sc->vtys; 4014 sc->first_vty + i != this_scr; 4015 i = (i + 1)%sc->vtys) { 4016 struct tty *tp = VIRTUAL_TTY(sc, sc->first_vty + i); 4017 if (ISTTYOPEN(tp)) { 4018 syscons_lock(); 4019 sc_switch_scr(scp->sc, sc->first_vty + i); 4020 syscons_unlock(); 4021 break; 4022 } 4023 } 4024 break; 4025 4026 case PREV: 4027 this_scr = scp->index; 4028 for (i = (this_scr - sc->first_vty + sc->vtys - 1)%sc->vtys; 4029 sc->first_vty + i != this_scr; 4030 i = (i + sc->vtys - 1)%sc->vtys) { 4031 struct tty *tp = VIRTUAL_TTY(sc, sc->first_vty + i); 4032 if (ISTTYOPEN(tp)) { 4033 syscons_lock(); 4034 sc_switch_scr(scp->sc, sc->first_vty + i); 4035 syscons_unlock(); 4036 break; 4037 } 4038 } 4039 break; 4040 4041 default: 4042 if (KEYCHAR(c) >= F_SCR && KEYCHAR(c) <= L_SCR) { 4043 syscons_lock(); 4044 sc_switch_scr(scp->sc, sc->first_vty + KEYCHAR(c) - F_SCR); 4045 syscons_unlock(); 4046 break; 4047 } 4048 /* assert(c & FKEY) */ 4049 if (!(sc->flags & SC_SCRN_BLANKED)) { 4050 lwkt_reltoken(&vga_token); 4051 return c; 4052 } 4053 break; 4054 } 4055 /* goto next_code */ 4056 } else { 4057 /* regular keys (maybe MKEY is set) */ 4058 if (!(sc->flags & SC_SCRN_BLANKED)) { 4059 lwkt_reltoken(&vga_token); 4060 return c; 4061 } 4062 } 4063 } 4064 4065 goto next_code; 4066 } 4067 4068 static int 4069 scmmap(struct dev_mmap_args *ap) 4070 { 4071 scr_stat *scp; 4072 4073 lwkt_gettoken(&vga_token); 4074 scp = SC_STAT(ap->a_head.a_dev); 4075 if (scp != scp->sc->cur_scp) { 4076 lwkt_reltoken(&vga_token); 4077 return EINVAL; 4078 } 4079 if (scp->sc->fbi != NULL) { 4080 size_t sz = 4081 roundup(scp->sc->fbi->height * scp->sc->fbi->stride, PAGE_SIZE); 4082 if (ap->a_offset > sz - PAGE_SIZE) { 4083 lwkt_reltoken(&vga_token); 4084 return EINVAL; 4085 } else { 4086 ap->a_result = atop(scp->sc->fbi->paddr + ap->a_offset); 4087 } 4088 } else { 4089 ap->a_result = (*vidsw[scp->sc->adapter]->mmap)(scp->sc->adp, 4090 ap->a_offset, 4091 ap->a_nprot); 4092 } 4093 lwkt_reltoken(&vga_token); 4094 return(0); 4095 } 4096 4097 static int 4098 save_kbd_state(scr_stat *scp, int unlock) 4099 { 4100 int state; 4101 int error; 4102 4103 WANT_UNLOCK(unlock); 4104 error = kbd_ioctl(scp->sc->kbd, KDGKBSTATE, (caddr_t)&state); 4105 WANT_LOCK(unlock); 4106 4107 if (error == ENOIOCTL) 4108 error = ENODEV; 4109 if (error == 0) { 4110 scp->status &= ~LOCK_MASK; 4111 scp->status |= state; 4112 } 4113 return error; 4114 } 4115 4116 static int 4117 update_kbd_state(scr_stat *scp, int new_bits, int mask, int unlock) 4118 { 4119 int state; 4120 int error; 4121 4122 if (mask != LOCK_MASK) { 4123 WANT_UNLOCK(unlock); 4124 error = kbd_ioctl(scp->sc->kbd, KDGKBSTATE, (caddr_t)&state); 4125 WANT_LOCK(unlock); 4126 4127 if (error == ENOIOCTL) 4128 error = ENODEV; 4129 if (error) { 4130 return error; 4131 } 4132 state &= ~mask; 4133 state |= new_bits & mask; 4134 } else { 4135 state = new_bits & LOCK_MASK; 4136 } 4137 WANT_UNLOCK(unlock); 4138 error = kbd_ioctl(scp->sc->kbd, KDSKBSTATE, (caddr_t)&state); 4139 WANT_LOCK(unlock); 4140 if (error == ENOIOCTL) 4141 error = ENODEV; 4142 return error; 4143 } 4144 4145 static int 4146 update_kbd_leds(scr_stat *scp, int which) 4147 { 4148 int error; 4149 4150 which &= LOCK_MASK; 4151 error = kbd_ioctl(scp->sc->kbd, KDSETLED, (caddr_t)&which); 4152 if (error == ENOIOCTL) 4153 error = ENODEV; 4154 return error; 4155 } 4156 4157 int 4158 set_mode(scr_stat *scp) 4159 { 4160 video_info_t info; 4161 4162 lwkt_gettoken(&vga_token); 4163 /* reject unsupported mode */ 4164 if (scp->sc->fbi == NULL && (*vidsw[scp->sc->adapter]->get_info)(scp->sc->adp, scp->mode, &info)) { 4165 lwkt_reltoken(&vga_token); 4166 return 1; 4167 } 4168 4169 /* if this vty is not currently showing, do nothing */ 4170 if (scp != scp->sc->cur_scp) { 4171 lwkt_reltoken(&vga_token); 4172 return 0; 4173 } 4174 4175 /* setup video hardware for the given mode */ 4176 if (scp->sc->fbi == NULL) { 4177 (*vidsw[scp->sc->adapter]->set_mode)(scp->sc->adp, scp->mode); 4178 sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, scp->xsize, scp->ysize, 4179 (void *)scp->sc->adp->va_window, FALSE); 4180 } else { 4181 goto done; 4182 } 4183 4184 #ifndef SC_NO_FONT_LOADING 4185 /* load appropriate font */ 4186 if (!(scp->status & GRAPHICS_MODE)) { 4187 if (!(scp->status & PIXEL_MODE) && ISFONTAVAIL(scp->sc->adp->va_flags)) { 4188 if (scp->font_height < 14) { 4189 if (scp->sc->fonts_loaded & FONT_8) 4190 sc_load_font(scp, 0, 8, scp->sc->font_8, 0, 256); 4191 } else if (scp->font_height >= 16) { 4192 if (scp->sc->fonts_loaded & FONT_16) 4193 sc_load_font(scp, 0, 16, scp->sc->font_16, 0, 256); 4194 } else { 4195 if (scp->sc->fonts_loaded & FONT_14) 4196 sc_load_font(scp, 0, 14, scp->sc->font_14, 0, 256); 4197 } 4198 /* 4199 * FONT KLUDGE: 4200 * This is an interim kludge to display correct font. 4201 * Always use the font page #0 on the video plane 2. 4202 * Somehow we cannot show the font in other font pages on 4203 * some video cards... XXX 4204 */ 4205 sc_show_font(scp, 0); 4206 } 4207 mark_all(scp); 4208 } 4209 #endif /* !SC_NO_FONT_LOADING */ 4210 4211 sc_set_border(scp, scp->border); 4212 sc_set_cursor_image(scp); 4213 4214 done: 4215 lwkt_reltoken(&vga_token); 4216 return 0; 4217 } 4218 4219 void 4220 refresh_ega_palette(scr_stat *scp) 4221 { 4222 uint32_t r, g, b; 4223 int reg; 4224 int rsize, gsize, bsize; 4225 int rfld, gfld, bfld; 4226 int i; 4227 4228 rsize = scp->sc->adp->va_info.vi_pixel_fsizes[0]; 4229 gsize = scp->sc->adp->va_info.vi_pixel_fsizes[1]; 4230 bsize = scp->sc->adp->va_info.vi_pixel_fsizes[2]; 4231 rfld = scp->sc->adp->va_info.vi_pixel_fields[0]; 4232 gfld = scp->sc->adp->va_info.vi_pixel_fields[1]; 4233 bfld = scp->sc->adp->va_info.vi_pixel_fields[2]; 4234 4235 for (i = 0; i < 16; i++) { 4236 reg = scp->sc->adp->va_palette_regs[i]; 4237 4238 r = scp->sc->palette[reg * 3] >> (8 - rsize); 4239 g = scp->sc->palette[reg * 3 + 1] >> (8 - gsize); 4240 b = scp->sc->palette[reg * 3 + 2] >> (8 - bsize); 4241 4242 scp->ega_palette[i] = (r << rfld) + (g << gfld) + (b << bfld); 4243 } 4244 } 4245 4246 void 4247 sc_set_border(scr_stat *scp, int color) 4248 { 4249 atomic_add_int(&scp->sc->videoio_in_progress, 1); 4250 (*scp->rndr->draw_border)(scp, color); 4251 atomic_add_int(&scp->sc->videoio_in_progress, -1); 4252 } 4253 4254 #ifndef SC_NO_FONT_LOADING 4255 void 4256 sc_load_font(scr_stat *scp, int page, int size, u_char *buf, 4257 int base, int count) 4258 { 4259 sc_softc_t *sc; 4260 4261 sc = scp->sc; 4262 sc->font_loading_in_progress = TRUE; 4263 (*vidsw[sc->adapter]->load_font)(sc->adp, page, size, buf, base, count); 4264 sc->font_loading_in_progress = FALSE; 4265 } 4266 4267 void 4268 sc_save_font(scr_stat *scp, int page, int size, u_char *buf, 4269 int base, int count) 4270 { 4271 sc_softc_t *sc; 4272 4273 sc = scp->sc; 4274 sc->font_loading_in_progress = TRUE; 4275 (*vidsw[sc->adapter]->save_font)(sc->adp, page, size, buf, base, count); 4276 sc->font_loading_in_progress = FALSE; 4277 } 4278 4279 void 4280 sc_show_font(scr_stat *scp, int page) 4281 { 4282 (*vidsw[scp->sc->adapter]->show_font)(scp->sc->adp, page); 4283 } 4284 #endif /* !SC_NO_FONT_LOADING */ 4285 4286 void 4287 sc_paste(scr_stat *scp, u_char *p, int count) 4288 { 4289 struct tty *tp; 4290 u_char *rmap; 4291 4292 /* 4293 * Holy hell, don't try to inject a paste buffer if the keyboard 4294 * is not in ascii mode! 4295 */ 4296 if (scp->kbd_mode != K_XLATE) 4297 return; 4298 4299 lwkt_gettoken(&vga_token); 4300 if (scp->status & MOUSE_VISIBLE) { 4301 tp = VIRTUAL_TTY(scp->sc, scp->sc->cur_scp->index); 4302 lwkt_gettoken(&tp->t_token); 4303 if (!ISTTYOPEN(tp)) { 4304 lwkt_reltoken(&tp->t_token); 4305 lwkt_reltoken(&vga_token); 4306 return; 4307 } 4308 rmap = scp->sc->scr_rmap; 4309 for (; count > 0; --count) 4310 (*linesw[tp->t_line].l_rint)(rmap[*p++], tp); 4311 lwkt_reltoken(&tp->t_token); 4312 } 4313 lwkt_reltoken(&vga_token); 4314 } 4315 4316 void 4317 sc_bell(scr_stat *scp, int pitch, int duration) 4318 { 4319 if (cold || shutdown_in_progress) 4320 return; 4321 4322 if (scp != scp->sc->cur_scp && (scp->sc->flags & SC_QUIET_BELL)) { 4323 return; 4324 } 4325 4326 if (scp->sc->flags & SC_VISUAL_BELL) { 4327 if (scp->sc->blink_in_progress) { 4328 return; 4329 } 4330 scp->sc->blink_in_progress = 3; 4331 if (scp != scp->sc->cur_scp) 4332 scp->sc->blink_in_progress += 2; 4333 lockmgr(&syscons_blink_lk, LK_EXCLUSIVE); 4334 sc_blink_screen(scp->sc->cur_scp); 4335 lockmgr(&syscons_blink_lk, LK_RELEASE); 4336 } else if (duration != 0 && pitch != 0) { 4337 if (scp != scp->sc->cur_scp) 4338 pitch *= 2; 4339 sysbeep(pitch, duration); 4340 } 4341 } 4342 4343 /* 4344 * Blink the screen, called with the syscons_mtx and syscons_blink_lk 4345 * held. Can be called directly or via the callout. 4346 */ 4347 static void 4348 sc_blink_screen(scr_stat *scp) 4349 { 4350 if (ISGRAPHSC(scp) || (scp->sc->blink_in_progress <= 1)) { 4351 scp->sc->blink_in_progress = 0; 4352 mark_all(scp); 4353 if (scp->sc->delayed_next_scr) 4354 sc_switch_scr(scp->sc, scp->sc->delayed_next_scr - 1); 4355 } else { 4356 (*scp->rndr->draw)(scp, 0, scp->xsize*scp->ysize, 4357 scp->sc->blink_in_progress & 1); 4358 scp->sc->blink_in_progress--; 4359 callout_reset(&scp->blink_screen_ch, hz / 10, 4360 blink_screen_callout, scp); 4361 } 4362 } 4363 4364 /* 4365 * Screen blink callout. Note that there is a lock order 4366 * reversal between syscons_blink_lk and the syscons lock. 4367 * Acquire the syscons lock non-blocking. 4368 */ 4369 static void 4370 blink_screen_callout(void *arg) 4371 { 4372 scr_stat *scp = arg; 4373 4374 if (syscons_lock_nonblock() == 0) { 4375 sc_blink_screen(scp); 4376 syscons_unlock(); 4377 } else { 4378 callout_reset(&scp->blink_screen_ch, hz / 10, 4379 blink_screen_callout, scp); 4380 } 4381 } 4382 4383 /* 4384 * Allocate active keyboard. Try to allocate "kbdmux" keyboard first, and, 4385 * if found, add all non-busy keyboards to "kbdmux". Otherwise look for 4386 * any keyboard. 4387 */ 4388 4389 static int 4390 sc_allocate_keyboard(sc_softc_t *sc, int unit) 4391 { 4392 int idx0, idx; 4393 keyboard_t *k0, *k; 4394 keyboard_info_t ki; 4395 4396 idx0 = kbd_allocate("kbdmux", -1, (void *)&sc->keyboard, sckbdevent, sc); 4397 if (idx0 != -1) { 4398 k0 = kbd_get_keyboard(idx0); 4399 4400 for (idx = kbd_find_keyboard2("*", -1, 0, 0); 4401 idx != -1; 4402 idx = kbd_find_keyboard2("*", -1, idx + 1, 0)) { 4403 k = kbd_get_keyboard(idx); 4404 4405 if (idx == idx0 || KBD_IS_BUSY(k)) 4406 continue; 4407 4408 bzero(&ki, sizeof(ki)); 4409 strcpy(ki.kb_name, k->kb_name); 4410 ki.kb_unit = k->kb_unit; 4411 4412 kbd_ioctl(k0, KBADDKBD, (caddr_t) &ki); 4413 } 4414 } else 4415 idx0 = kbd_allocate("*", unit, (void *)&sc->keyboard, sckbdevent, sc); 4416 4417 return (idx0); 4418 } 4419