1 /*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1992-1998 Søren Schmidt
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The DragonFly Project
8 * by Sascha Wildner <saw@online.de>
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
34 #include <sys/cdefs.h>
35 #include "opt_syscons.h"
36 #include "opt_splash.h"
37 #include "opt_ddb.h"
38
39 #include <sys/param.h>
40 #include <sys/systm.h>
41 #include <sys/bus.h>
42 #include <sys/conf.h>
43 #include <sys/cons.h>
44 #include <sys/consio.h>
45 #include <sys/kdb.h>
46 #include <sys/eventhandler.h>
47 #include <sys/fbio.h>
48 #include <sys/kbio.h>
49 #include <sys/kernel.h>
50 #include <sys/lock.h>
51 #include <sys/malloc.h>
52 #include <sys/mutex.h>
53 #include <sys/pcpu.h>
54 #include <sys/priv.h>
55 #include <sys/proc.h>
56 #include <sys/random.h>
57 #include <sys/reboot.h>
58 #include <sys/serial.h>
59 #include <sys/signalvar.h>
60 #include <sys/smp.h>
61 #include <sys/sysctl.h>
62 #include <sys/tty.h>
63 #include <sys/power.h>
64
65 #include <machine/clock.h>
66 #if defined(__arm__) || defined(__mips__) || defined(__powerpc__)
67 #include <machine/sc_machdep.h>
68 #else
69 #include <machine/pc/display.h>
70 #endif
71 #if defined(__i386__) || defined(__amd64__)
72 #include <machine/psl.h>
73 #include <machine/frame.h>
74 #endif
75 #include <machine/stdarg.h>
76
77 #if defined(__amd64__) || defined(__i386__)
78 #include <machine/vmparam.h>
79
80 #include <vm/vm.h>
81 #include <vm/pmap.h>
82 #endif
83
84 #include <dev/kbd/kbdreg.h>
85 #include <dev/fb/fbreg.h>
86 #include <dev/fb/splashreg.h>
87 #include <dev/syscons/syscons.h>
88
89 #define COLD 0
90 #define WARM 1
91
92 #define DEFAULT_BLANKTIME (5 * 60) /* 5 minutes */
93 #define MAX_BLANKTIME (7 * 24 * 60 * 60) /* 7 days!? */
94
95 #define KEYCODE_BS 0x0e /* "<-- Backspace" key, XXX */
96
97 /* NULL-safe version of "tty_opened()" */
98 #define tty_opened_ns(tp) ((tp) != NULL && tty_opened(tp))
99
100 static u_char sc_kattrtab[MAXCPU];
101
102 static int sc_console_unit = -1;
103 static int sc_saver_keyb_only = 1;
104 static scr_stat *sc_console;
105 static struct consdev *sc_consptr;
106 static void *sc_kts[MAXCPU];
107 static struct sc_term_sw *sc_ktsw;
108 static scr_stat main_console;
109 static struct tty *main_devs[MAXCONS];
110
111 static char init_done = COLD;
112 static int shutdown_in_progress = FALSE;
113 static int suspend_in_progress = FALSE;
114 static char sc_malloc = FALSE;
115
116 static int saver_mode = CONS_NO_SAVER; /* LKM/user saver */
117 static int run_scrn_saver = FALSE; /* should run the saver? */
118 static int enable_bell = TRUE; /* enable beeper */
119
120 #ifndef SC_DISABLE_REBOOT
121 static int enable_reboot = TRUE; /* enable keyboard reboot */
122 #endif
123
124 #ifndef SC_DISABLE_KDBKEY
125 static int enable_kdbkey = TRUE; /* enable keyboard debug */
126 #endif
127
128 static long scrn_blank_time = 0; /* screen saver timeout value */
129 #ifdef DEV_SPLASH
130 static int scrn_blanked; /* # of blanked screen */
131 static int sticky_splash = FALSE;
132
133 static void
none_saver(sc_softc_t * sc,int blank)134 none_saver(sc_softc_t *sc, int blank)
135 {
136 }
137 static void (*current_saver)(sc_softc_t *, int) = none_saver;
138 #endif
139
140 #ifdef SC_NO_SUSPEND_VTYSWITCH
141 static int sc_no_suspend_vtswitch = 1;
142 #else
143 static int sc_no_suspend_vtswitch = 0;
144 #endif
145 static int sc_susp_scr;
146
147 static SYSCTL_NODE(_hw, OID_AUTO, syscons, CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
148 "syscons");
149 static SYSCTL_NODE(_hw_syscons, OID_AUTO, saver,
150 CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
151 "saver");
152 SYSCTL_INT(_hw_syscons_saver, OID_AUTO, keybonly, CTLFLAG_RW,
153 &sc_saver_keyb_only, 0, "screen saver interrupted by input only");
154 SYSCTL_INT(
155 _hw_syscons, OID_AUTO, bell, CTLFLAG_RW, &enable_bell, 0, "enable bell");
156 #ifndef SC_DISABLE_REBOOT
157 SYSCTL_INT(_hw_syscons, OID_AUTO, kbd_reboot, CTLFLAG_RW | CTLFLAG_SECURE,
158 &enable_reboot, 0, "enable keyboard reboot");
159 #endif
160 #ifndef SC_DISABLE_KDBKEY
161 SYSCTL_INT(_hw_syscons, OID_AUTO, kbd_debug, CTLFLAG_RW | CTLFLAG_SECURE,
162 &enable_kdbkey, 0, "enable keyboard debug");
163 #endif
164 SYSCTL_INT(_hw_syscons, OID_AUTO, sc_no_suspend_vtswitch, CTLFLAG_RWTUN,
165 &sc_no_suspend_vtswitch, 0, "Disable VT switch before suspend.");
166 #if !defined(SC_NO_FONT_LOADING) && defined(SC_DFLT_FONT)
167 #include "font.h"
168 #endif
169
170 tsw_ioctl_t *sc_user_ioctl;
171
172 static bios_values_t bios_value;
173
174 static int enable_panic_key;
175 SYSCTL_INT(_machdep, OID_AUTO, enable_panic_key, CTLFLAG_RW, &enable_panic_key,
176 0, "Enable panic via keypress specified in kbdmap(5)");
177
178 #define SC_CONSOLECTL 255
179
180 #define VTY_WCHAN(sc, vty) (&SC_DEV(sc, vty))
181
182 /* prototypes */
183 static int sc_allocate_keyboard(sc_softc_t *sc, int unit);
184 static int scvidprobe(int unit, int flags, int cons);
185 static int sckbdprobe(int unit, int flags, int cons);
186 static void scmeminit(void *arg);
187 static int scdevtounit(struct tty *tp);
188 static kbd_callback_func_t sckbdevent;
189 static void scinit(int unit, int flags);
190 static scr_stat *sc_get_stat(struct tty *tp);
191 static void scterm(int unit, int flags);
192 static void scshutdown(void *, int);
193 static void scsuspend(void *);
194 static void scresume(void *);
195 static u_int scgetc(sc_softc_t *sc, u_int flags, struct sc_cnstate *sp);
196 static void sc_puts(scr_stat *scp, u_char *buf, int len);
197 #define SCGETC_CN 1
198 #define SCGETC_NONBLOCK 2
199 static void sccnupdate(scr_stat *scp);
200 static scr_stat *alloc_scp(sc_softc_t *sc, int vty);
201 static void init_scp(sc_softc_t *sc, int vty, scr_stat *scp);
202 static callout_func_t scrn_timer;
203 static int and_region(int *s1, int *e1, int s2, int e2);
204 static void scrn_update(scr_stat *scp, int show_cursor);
205
206 #ifdef DEV_SPLASH
207 static int scsplash_callback(int event, void *arg);
208 static void scsplash_saver(sc_softc_t *sc, int show);
209 static int add_scrn_saver(void (*this_saver)(sc_softc_t *, int));
210 static int remove_scrn_saver(void (*this_saver)(sc_softc_t *, int));
211 static int set_scrn_saver_mode(
212 scr_stat *scp, int mode, u_char *pal, int border);
213 static int restore_scrn_saver_mode(scr_stat *scp, int changemode);
214 static void stop_scrn_saver(sc_softc_t *sc, void (*saver)(sc_softc_t *, int));
215 static int wait_scrn_saver_stop(sc_softc_t *sc);
216 #define scsplash_stick(stick) (sticky_splash = (stick))
217 #else /* !DEV_SPLASH */
218 #define scsplash_stick(stick)
219 #endif /* DEV_SPLASH */
220
221 static int do_switch_scr(sc_softc_t *sc, int s);
222 static int vt_proc_alive(scr_stat *scp);
223 static int signal_vt_rel(scr_stat *scp);
224 static int signal_vt_acq(scr_stat *scp);
225 static int finish_vt_rel(scr_stat *scp, int release, int *s);
226 static int finish_vt_acq(scr_stat *scp);
227 static void exchange_scr(sc_softc_t *sc);
228 static void update_cursor_image(scr_stat *scp);
229 static void change_cursor_shape(scr_stat *scp, int flags, int base, int height);
230 static void update_font(scr_stat *);
231 static int save_kbd_state(scr_stat *scp);
232 static int update_kbd_state(scr_stat *scp, int state, int mask);
233 static int update_kbd_leds(scr_stat *scp, int which);
234 static int sc_kattr(void);
235 static callout_func_t blink_screen;
236 static struct tty *sc_alloc_tty(int, int);
237
238 static cn_probe_t sc_cnprobe;
239 static cn_init_t sc_cninit;
240 static cn_term_t sc_cnterm;
241 static cn_getc_t sc_cngetc;
242 static cn_putc_t sc_cnputc;
243 static cn_grab_t sc_cngrab;
244 static cn_ungrab_t sc_cnungrab;
245
246 CONSOLE_DRIVER(sc);
247
248 static tsw_open_t sctty_open;
249 static tsw_close_t sctty_close;
250 static tsw_outwakeup_t sctty_outwakeup;
251 static tsw_ioctl_t sctty_ioctl;
252 static tsw_mmap_t sctty_mmap;
253
254 static struct ttydevsw sc_ttydevsw = {
255 .tsw_open = sctty_open,
256 .tsw_close = sctty_close,
257 .tsw_outwakeup = sctty_outwakeup,
258 .tsw_ioctl = sctty_ioctl,
259 .tsw_mmap = sctty_mmap,
260 };
261
262 static d_ioctl_t consolectl_ioctl;
263 static d_close_t consolectl_close;
264
265 static struct cdevsw consolectl_devsw = {
266 .d_version = D_VERSION,
267 .d_flags = D_NEEDGIANT | D_TRACKCLOSE,
268 .d_ioctl = consolectl_ioctl,
269 .d_close = consolectl_close,
270 .d_name = "consolectl",
271 };
272
273 /* ec -- emergency console. */
274
275 static u_int ec_scroffset;
276
277 static void
ec_putc(int c)278 ec_putc(int c)
279 {
280 uintptr_t fb;
281 u_short *scrptr;
282 u_int ind;
283 int attr, column, mysize, width, xsize, yborder, ysize;
284
285 if (c < 0 || c > 0xff || c == '\a')
286 return;
287 if (sc_console == NULL) {
288 #if !defined(__amd64__) && !defined(__i386__)
289 return;
290 #else
291 /*
292 * This is enough for ec_putc() to work very early on x86
293 * if the kernel starts in normal color text mode.
294 */
295 #ifdef __amd64__
296 fb = KERNBASE + 0xb8000;
297 #else /* __i386__ */
298 fb = pmap_get_map_low() + 0xb8000;
299 #endif
300 xsize = 80;
301 ysize = 25;
302 #endif
303 } else {
304 if (!ISTEXTSC(&main_console))
305 return;
306 fb = main_console.sc->adp->va_window;
307 xsize = main_console.xsize;
308 ysize = main_console.ysize;
309 }
310 yborder = ysize / 5;
311 scrptr = (u_short *)(void *)fb + xsize * yborder;
312 mysize = xsize * (ysize - 2 * yborder);
313 do {
314 ind = ec_scroffset;
315 column = ind % xsize;
316 width = (c == '\b' ?
317 -1 :
318 c == '\t' ?
319 (column + 8) & ~7 :
320 c == '\r' ? -column : c == '\n' ? xsize - column : 1);
321 if (width == 0 || (width < 0 && ind < -width))
322 return;
323 } while (atomic_cmpset_rel_int(&ec_scroffset, ind, ind + width) == 0);
324 if (c == '\b' || c == '\r')
325 return;
326 if (c == '\n')
327 ind += xsize; /* XXX clearing from new pos is not atomic */
328
329 attr = sc_kattr();
330 if (c == '\t' || c == '\n')
331 c = ' ';
332 do
333 scrptr[ind++ % mysize] = (attr << 8) | c;
334 while (--width != 0);
335 }
336
337 int
sc_probe_unit(int unit,int flags)338 sc_probe_unit(int unit, int flags)
339 {
340 if (!vty_enabled(VTY_SC))
341 return ENXIO;
342 if (!scvidprobe(unit, flags, FALSE)) {
343 if (bootverbose)
344 printf("%s%d: no video adapter found.\n",
345 SC_DRIVER_NAME, unit);
346 return ENXIO;
347 }
348
349 /* syscons will be attached even when there is no keyboard */
350 sckbdprobe(unit, flags, FALSE);
351
352 return 0;
353 }
354
355 /* probe video adapters, return TRUE if found */
356 static int
scvidprobe(int unit,int flags,int cons)357 scvidprobe(int unit, int flags, int cons)
358 {
359 /*
360 * Access the video adapter driver through the back door!
361 * Video adapter drivers need to be configured before syscons.
362 * However, when syscons is being probed as the low-level console,
363 * they have not been initialized yet. We force them to initialize
364 * themselves here. XXX
365 */
366 vid_configure(cons ? VIO_PROBE_ONLY : 0);
367
368 return (vid_find_adapter("*", unit) >= 0);
369 }
370
371 /* probe the keyboard, return TRUE if found */
372 static int
sckbdprobe(int unit,int flags,int cons)373 sckbdprobe(int unit, int flags, int cons)
374 {
375 /* access the keyboard driver through the backdoor! */
376 kbd_configure(cons ? KB_CONF_PROBE_ONLY : 0);
377
378 return (kbd_find_keyboard("*", unit) >= 0);
379 }
380
381 static char *
adapter_name(video_adapter_t * adp)382 adapter_name(video_adapter_t *adp)
383 {
384 static struct {
385 int type;
386 char *name[2];
387 } names[] = {
388 { KD_MONO, { "MDA", "MDA" } },
389 { KD_HERCULES, { "Hercules", "Hercules" } },
390 { KD_CGA, { "CGA", "CGA" } },
391 { KD_EGA, { "EGA", "EGA (mono)" } },
392 { KD_VGA, { "VGA", "VGA (mono)" } },
393 { KD_TGA, { "TGA", "TGA" } },
394 { -1, { "Unknown", "Unknown" } },
395 };
396 int i;
397
398 for (i = 0; names[i].type != -1; ++i)
399 if (names[i].type == adp->va_type)
400 break;
401 return names[i].name[(adp->va_flags & V_ADP_COLOR) ? 0 : 1];
402 }
403
404 static void
sctty_outwakeup(struct tty * tp)405 sctty_outwakeup(struct tty *tp)
406 {
407 size_t len;
408 u_char buf[PCBURST];
409 scr_stat *scp = sc_get_stat(tp);
410
411 if (scp->status & SLKED ||
412 (scp == scp->sc->cur_scp && scp->sc->blink_in_progress))
413 return;
414
415 for (;;) {
416 len = ttydisc_getc(tp, buf, sizeof buf);
417 if (len == 0)
418 break;
419 SC_VIDEO_LOCK(scp->sc);
420 sc_puts(scp, buf, len);
421 SC_VIDEO_UNLOCK(scp->sc);
422 }
423 }
424
425 static struct tty *
sc_alloc_tty(int index,int devnum)426 sc_alloc_tty(int index, int devnum)
427 {
428 struct sc_ttysoftc *stc;
429 struct tty *tp;
430
431 /* Allocate TTY object and softc to store unit number. */
432 stc = malloc(sizeof(struct sc_ttysoftc), M_DEVBUF, M_WAITOK);
433 stc->st_index = index;
434 stc->st_stat = NULL;
435 tp = tty_alloc_mutex(&sc_ttydevsw, stc, &Giant);
436
437 /* Create device node. */
438 tty_makedev(tp, NULL, "v%r", devnum);
439
440 return (tp);
441 }
442
443 #ifdef SC_PIXEL_MODE
444 static void
sc_set_vesa_mode(scr_stat * scp,sc_softc_t * sc,int unit)445 sc_set_vesa_mode(scr_stat *scp, sc_softc_t *sc, int unit)
446 {
447 video_info_t info;
448 u_char *font;
449 int depth;
450 int fontsize;
451 int i;
452 int vmode;
453
454 vmode = 0;
455 (void)resource_int_value("sc", unit, "vesa_mode", &vmode);
456 if (vmode < M_VESA_BASE || vmode > M_VESA_MODE_MAX ||
457 vidd_get_info(sc->adp, vmode, &info) != 0 ||
458 !sc_support_pixel_mode(&info))
459 vmode = 0;
460
461 /*
462 * If the mode is unset or unsupported, search for an available
463 * 800x600 graphics mode with the highest color depth.
464 */
465 if (vmode == 0) {
466 for (depth = 0, i = M_VESA_BASE; i <= M_VESA_MODE_MAX; i++)
467 if (vidd_get_info(sc->adp, i, &info) == 0 &&
468 info.vi_width == 800 && info.vi_height == 600 &&
469 sc_support_pixel_mode(&info) &&
470 info.vi_depth > depth) {
471 vmode = i;
472 depth = info.vi_depth;
473 }
474 if (vmode == 0)
475 return;
476 vidd_get_info(sc->adp, vmode, &info);
477 }
478
479 #if !defined(SC_NO_FONT_LOADING) && defined(SC_DFLT_FONT)
480 fontsize = info.vi_cheight;
481 #else
482 fontsize = scp->font_size;
483 #endif
484 if (fontsize < 14)
485 fontsize = 8;
486 else if (fontsize >= 16)
487 fontsize = 16;
488 else
489 fontsize = 14;
490 #ifndef SC_NO_FONT_LOADING
491 switch (fontsize) {
492 case 8:
493 if ((sc->fonts_loaded & FONT_8) == 0)
494 return;
495 font = sc->font_8;
496 break;
497 case 14:
498 if ((sc->fonts_loaded & FONT_14) == 0)
499 return;
500 font = sc->font_14;
501 break;
502 case 16:
503 if ((sc->fonts_loaded & FONT_16) == 0)
504 return;
505 font = sc->font_16;
506 break;
507 }
508 #else
509 font = NULL;
510 #endif
511 #ifdef DEV_SPLASH
512 if ((sc->flags & SC_SPLASH_SCRN) != 0)
513 splash_term(sc->adp);
514 #endif
515 #ifndef SC_NO_HISTORY
516 if (scp->history != NULL) {
517 sc_vtb_append(&scp->vtb, 0, scp->history,
518 scp->ypos * scp->xsize + scp->xpos);
519 scp->history_pos = sc_vtb_tail(scp->history);
520 }
521 #endif
522 vidd_set_mode(sc->adp, vmode);
523 scp->status |= (UNKNOWN_MODE | PIXEL_MODE | MOUSE_HIDDEN);
524 scp->status &= ~(GRAPHICS_MODE | MOUSE_VISIBLE);
525 scp->xpixel = info.vi_width;
526 scp->ypixel = info.vi_height;
527 scp->xsize = scp->xpixel / 8;
528 scp->ysize = scp->ypixel / fontsize;
529 scp->xpos = 0;
530 scp->ypos = scp->ysize - 1;
531 scp->xoff = scp->yoff = 0;
532 scp->font = font;
533 scp->font_size = fontsize;
534 scp->font_width = 8;
535 scp->start = scp->xsize * scp->ysize - 1;
536 scp->end = 0;
537 scp->cursor_pos = scp->cursor_oldpos = scp->xsize * scp->xsize;
538 scp->mode = sc->initial_mode = vmode;
539 sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, scp->xsize, scp->ysize,
540 (void *)sc->adp->va_window, FALSE);
541 sc_alloc_scr_buffer(scp, FALSE, FALSE);
542 sc_init_emulator(scp, NULL);
543 #ifndef SC_NO_CUTPASTE
544 sc_alloc_cut_buffer(scp, FALSE);
545 #endif
546 #ifndef SC_NO_HISTORY
547 sc_alloc_history_buffer(scp, 0, 0, FALSE);
548 #endif
549 sc_set_border(scp, scp->border);
550 sc_set_cursor_image(scp);
551 scp->status &= ~UNKNOWN_MODE;
552 #ifdef DEV_SPLASH
553 if ((sc->flags & SC_SPLASH_SCRN) != 0)
554 splash_init(sc->adp, scsplash_callback, sc);
555 #endif
556 }
557 #endif
558
559 int
sc_attach_unit(int unit,int flags)560 sc_attach_unit(int unit, int flags)
561 {
562 sc_softc_t *sc;
563 scr_stat *scp;
564 struct cdev *dev;
565 void *oldts, *ts;
566 int i, vc;
567
568 if (!vty_enabled(VTY_SC))
569 return ENXIO;
570
571 flags &= ~SC_KERNEL_CONSOLE;
572
573 if (sc_console_unit == unit) {
574 /*
575 * If this unit is being used as the system console, we need to
576 * adjust some variables and buffers before and after scinit().
577 */
578 /* assert(sc_console != NULL) */
579 flags |= SC_KERNEL_CONSOLE;
580 scmeminit(NULL);
581
582 scinit(unit, flags);
583
584 if (sc_console->tsw->te_size > 0) {
585 sc_ktsw = sc_console->tsw;
586 /* assert(sc_console->ts != NULL); */
587 oldts = sc_console->ts;
588 for (i = 0; i <= mp_maxid; i++) {
589 ts = malloc(sc_console->tsw->te_size, M_DEVBUF,
590 M_WAITOK | M_ZERO);
591 (*sc_console->tsw->te_init)(
592 sc_console, &ts, SC_TE_COLD_INIT);
593 sc_console->ts = ts;
594 (*sc_console->tsw->te_default_attr)(sc_console,
595 sc_kattrtab[i], SC_KERNEL_CONS_REV_ATTR);
596 sc_kts[i] = ts;
597 }
598 sc_console->ts = oldts;
599 (*sc_console->tsw->te_default_attr)(
600 sc_console, SC_NORM_ATTR, SC_NORM_REV_ATTR);
601 }
602 } else {
603 scinit(unit, flags);
604 }
605
606 sc = sc_get_softc(unit, flags & SC_KERNEL_CONSOLE);
607 sc->config = flags;
608 callout_init(&sc->ctimeout, 0);
609 callout_init(&sc->cblink, 0);
610 scp = sc_get_stat(sc->dev[0]);
611 if (sc_console == NULL) /* sc_console_unit < 0 */
612 sc_console = scp;
613
614 #ifdef SC_PIXEL_MODE
615 if ((sc->config & SC_VESAMODE) != 0)
616 sc_set_vesa_mode(scp, sc, unit);
617 #endif /* SC_PIXEL_MODE */
618
619 /* initialize cursor */
620 if (!ISGRAPHSC(scp))
621 update_cursor_image(scp);
622
623 /* get screen update going */
624 scrn_timer(sc);
625
626 /* set up the keyboard */
627 (void)kbdd_ioctl(sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode);
628 update_kbd_state(scp, scp->status, LOCK_MASK);
629
630 printf("%s%d: %s <%d virtual consoles, flags=0x%x>\n", SC_DRIVER_NAME,
631 unit, adapter_name(sc->adp), sc->vtys, sc->config);
632 if (bootverbose) {
633 printf("%s%d:", SC_DRIVER_NAME, unit);
634 if (sc->adapter >= 0)
635 printf(" fb%d", sc->adapter);
636 if (sc->kbd != NULL)
637 printf(", kbd%d", sc->kbd->kb_index);
638 if (scp->tsw)
639 printf(", terminal emulator: %s (%s)",
640 scp->tsw->te_name, scp->tsw->te_desc);
641 printf("\n");
642 }
643
644 /* Register suspend/resume/shutdown callbacks for the kernel console. */
645 if (sc_console_unit == unit) {
646 EVENTHANDLER_REGISTER(
647 power_suspend_early, scsuspend, NULL, EVENTHANDLER_PRI_ANY);
648 EVENTHANDLER_REGISTER(
649 power_resume, scresume, NULL, EVENTHANDLER_PRI_ANY);
650 EVENTHANDLER_REGISTER(
651 shutdown_pre_sync, scshutdown, NULL, SHUTDOWN_PRI_DEFAULT);
652 }
653
654 for (vc = 0; vc < sc->vtys; vc++) {
655 if (sc->dev[vc] == NULL) {
656 sc->dev[vc] = sc_alloc_tty(vc, vc + unit * MAXCONS);
657 if (vc == 0 && sc->dev == main_devs)
658 SC_STAT(sc->dev[0]) = &main_console;
659 }
660 /*
661 * The first vty already has struct tty and scr_stat initialized
662 * in scinit(). The other vtys will have these structs when
663 * first opened.
664 */
665 }
666
667 dev = make_dev(
668 &consolectl_devsw, 0, UID_ROOT, GID_WHEEL, 0600, "consolectl");
669 dev->si_drv1 = sc->dev[0];
670
671 return 0;
672 }
673
674 static void
scmeminit(void * arg)675 scmeminit(void *arg)
676 {
677 if (!vty_enabled(VTY_SC))
678 return;
679 if (sc_malloc)
680 return;
681 sc_malloc = TRUE;
682
683 /*
684 * As soon as malloc() becomes functional, we had better allocate
685 * various buffers for the kernel console.
686 */
687
688 if (sc_console_unit < 0) /* sc_console == NULL */
689 return;
690
691 /* copy the temporary buffer to the final buffer */
692 sc_alloc_scr_buffer(sc_console, FALSE, FALSE);
693
694 #ifndef SC_NO_CUTPASTE
695 sc_alloc_cut_buffer(sc_console, FALSE);
696 #endif
697
698 #ifndef SC_NO_HISTORY
699 /* initialize history buffer & pointers */
700 sc_alloc_history_buffer(sc_console, 0, 0, FALSE);
701 #endif
702 }
703
704 /* XXX */
705 SYSINIT(sc_mem, SI_SUB_KMEM, SI_ORDER_ANY, scmeminit, NULL);
706
707 static int
scdevtounit(struct tty * tp)708 scdevtounit(struct tty *tp)
709 {
710 int vty = SC_VTY(tp);
711
712 if (vty == SC_CONSOLECTL)
713 return ((sc_console != NULL) ? sc_console->sc->unit : -1);
714 else if ((vty < 0) || (vty >= MAXCONS * sc_max_unit()))
715 return -1;
716 else
717 return vty / MAXCONS;
718 }
719
720 static int
sctty_open(struct tty * tp)721 sctty_open(struct tty *tp)
722 {
723 int unit = scdevtounit(tp);
724 sc_softc_t *sc;
725 scr_stat *scp;
726 keyarg_t key;
727
728 DPRINTF(5,
729 ("scopen: dev:%s, unit:%d, vty:%d\n", devtoname(tp->t_dev), unit,
730 SC_VTY(tp)));
731
732 sc = sc_get_softc(
733 unit, (sc_console_unit == unit) ? SC_KERNEL_CONSOLE : 0);
734 if (sc == NULL)
735 return ENXIO;
736
737 if (!tty_opened(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 (void)kbdd_ioctl(sc->kbd, GIO_KEYMAPENT, (caddr_t)&key);
743 tp->t_termios.c_cc[VERASE] = key.key.map[0];
744 }
745 }
746
747 scp = sc_get_stat(tp);
748 if (scp == NULL) {
749 scp = SC_STAT(tp) = alloc_scp(sc, SC_VTY(tp));
750 if (ISGRAPHSC(scp))
751 sc_set_pixel_mode(scp, NULL, 0, 0, 16, 8);
752 }
753 if (!tp->t_winsize.ws_col && !tp->t_winsize.ws_row) {
754 tp->t_winsize.ws_col = scp->xsize;
755 tp->t_winsize.ws_row = scp->ysize;
756 }
757
758 return (0);
759 }
760
761 static void
sctty_close(struct tty * tp)762 sctty_close(struct tty *tp)
763 {
764 scr_stat *scp;
765 int s;
766
767 if (SC_VTY(tp) != SC_CONSOLECTL) {
768 scp = sc_get_stat(tp);
769 /* were we in the middle of the VT switching process? */
770 DPRINTF(5, ("sc%d: scclose(), ", scp->sc->unit));
771 s = spltty();
772 if ((scp == scp->sc->cur_scp) &&
773 (scp->sc->unit == sc_console_unit))
774 cnavailable(sc_consptr, TRUE);
775 if (finish_vt_rel(scp, TRUE, &s) == 0) /* force release */
776 DPRINTF(5, ("reset WAIT_REL, "));
777 if (finish_vt_acq(scp) == 0) /* force acknowledge */
778 DPRINTF(5, ("reset WAIT_ACQ, "));
779 #ifdef not_yet_done
780 if (scp == &main_console) {
781 scp->pid = 0;
782 scp->proc = NULL;
783 scp->smode.mode = VT_AUTO;
784 } else {
785 sc_vtb_destroy(&scp->vtb);
786 sc_vtb_destroy(&scp->scr);
787 sc_free_history_buffer(scp, scp->ysize);
788 SC_STAT(tp) = NULL;
789 free(scp, M_DEVBUF);
790 }
791 #else
792 scp->pid = 0;
793 scp->proc = NULL;
794 scp->smode.mode = VT_AUTO;
795 #endif
796 scp->kbd_mode = K_XLATE;
797 if (scp == scp->sc->cur_scp)
798 (void)kbdd_ioctl(
799 scp->sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode);
800 DPRINTF(5, ("done.\n"));
801 }
802 }
803
804 #if 0 /* XXX mpsafetty: fix screensaver. What about outwakeup? */
805 static int
806 scread(struct cdev *dev, struct uio *uio, int flag)
807 {
808 if (!sc_saver_keyb_only)
809 sc_touch_scrn_saver();
810 return ttyread(dev, uio, flag);
811 }
812 #endif
813
814 static int
sckbdevent(keyboard_t * thiskbd,int event,void * arg)815 sckbdevent(keyboard_t *thiskbd, int event, void *arg)
816 {
817 sc_softc_t *sc;
818 struct tty *cur_tty;
819 int c, error = 0;
820 size_t len;
821 const u_char *cp;
822
823 sc = (sc_softc_t *)arg;
824 /* assert(thiskbd == sc->kbd) */
825
826 mtx_lock(&Giant);
827
828 switch (event) {
829 case KBDIO_KEYINPUT:
830 break;
831 case KBDIO_UNLOADING:
832 sc->kbd = NULL;
833 kbd_release(thiskbd, (void *)&sc->kbd);
834 goto done;
835 default:
836 error = EINVAL;
837 goto done;
838 }
839
840 /*
841 * Loop while there is still input to get from the keyboard.
842 * I don't think this is nessesary, and it doesn't fix
843 * the Xaccel-2.1 keyboard hang, but it can't hurt. XXX
844 */
845 while ((c = scgetc(sc, SCGETC_NONBLOCK, NULL)) != NOKEY) {
846 cur_tty = SC_DEV(sc, sc->cur_scp->index);
847 if (!tty_opened_ns(cur_tty))
848 continue;
849
850 if ((*sc->cur_scp->tsw->te_input)(sc->cur_scp, c, cur_tty))
851 continue;
852
853 switch (KEYFLAGS(c)) {
854 case 0x0000: /* normal key */
855 ttydisc_rint(cur_tty, KEYCHAR(c), 0);
856 break;
857 case FKEY: /* function key, return string */
858 cp = (*sc->cur_scp->tsw->te_fkeystr)(sc->cur_scp, c);
859 if (cp != NULL) {
860 ttydisc_rint_simple(cur_tty, cp, strlen(cp));
861 break;
862 }
863 cp = kbdd_get_fkeystr(thiskbd, KEYCHAR(c), &len);
864 if (cp != NULL)
865 ttydisc_rint_simple(cur_tty, cp, len);
866 break;
867 case MKEY: /* meta is active, prepend ESC */
868 ttydisc_rint(cur_tty, 0x1b, 0);
869 ttydisc_rint(cur_tty, KEYCHAR(c), 0);
870 break;
871 case BKEY: /* backtab fixed sequence (esc [ Z) */
872 ttydisc_rint_simple(cur_tty, "\x1B[Z", 3);
873 break;
874 }
875
876 ttydisc_rint_done(cur_tty);
877 }
878
879 sc->cur_scp->status |= MOUSE_HIDDEN;
880
881 done:
882 mtx_unlock(&Giant);
883 return (error);
884 }
885
886 static int
sctty_ioctl(struct tty * tp,u_long cmd,caddr_t data,struct thread * td)887 sctty_ioctl(struct tty *tp, u_long cmd, caddr_t data, struct thread *td)
888 {
889 int error;
890 int i;
891 struct cursor_attr *cap;
892 sc_softc_t *sc;
893 scr_stat *scp;
894 int s;
895 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
896 defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
897 int ival;
898 #endif
899
900 /* If there is a user_ioctl function call that first */
901 if (sc_user_ioctl) {
902 error = (*sc_user_ioctl)(tp, cmd, data, td);
903 if (error != ENOIOCTL)
904 return error;
905 }
906
907 error = sc_vid_ioctl(tp, cmd, data, td);
908 if (error != ENOIOCTL)
909 return error;
910
911 #ifndef SC_NO_HISTORY
912 error = sc_hist_ioctl(tp, cmd, data, td);
913 if (error != ENOIOCTL)
914 return error;
915 #endif
916
917 #ifndef SC_NO_SYSMOUSE
918 error = sc_mouse_ioctl(tp, cmd, data, td);
919 if (error != ENOIOCTL)
920 return error;
921 #endif
922
923 scp = sc_get_stat(tp);
924 /* assert(scp != NULL) */
925 /* scp is sc_console, if SC_VTY(dev) == SC_CONSOLECTL. */
926 sc = scp->sc;
927
928 if (scp->tsw) {
929 error = (*scp->tsw->te_ioctl)(scp, tp, cmd, data, td);
930 if (error != ENOIOCTL)
931 return error;
932 }
933
934 switch (cmd) { /* process console hardware related ioctl's */
935
936 case GIO_ATTR: /* get current attributes */
937 /* this ioctl is not processed here, but in the terminal
938 * emulator */
939 return ENOTTY;
940
941 case GIO_COLOR: /* is this a color console ? */
942 *(int *)data = (sc->adp->va_flags & V_ADP_COLOR) ? 1 : 0;
943 return 0;
944
945 case CONS_BLANKTIME: /* set screen saver timeout (0 = no saver) */
946 if (*(int *)data < 0 || *(int *)data > MAX_BLANKTIME)
947 return EINVAL;
948 s = spltty();
949 scrn_blank_time = *(int *)data;
950 run_scrn_saver = (scrn_blank_time != 0);
951 splx(s);
952 return 0;
953
954 case CONS_CURSORTYPE: /* set cursor type (old interface + HIDDEN) */
955 s = spltty();
956 *(int *)data &= CONS_CURSOR_ATTRS;
957 sc_change_cursor_shape(scp, *(int *)data, -1, -1);
958 splx(s);
959 return 0;
960
961 case CONS_GETCURSORSHAPE: /* get cursor shape (new interface) */
962 switch (((int *)data)[0] &
963 (CONS_DEFAULT_CURSOR | CONS_LOCAL_CURSOR)) {
964 case 0:
965 cap = &sc->curs_attr;
966 break;
967 case CONS_LOCAL_CURSOR:
968 cap = &scp->base_curs_attr;
969 break;
970 case CONS_DEFAULT_CURSOR:
971 cap = &sc->dflt_curs_attr;
972 break;
973 case CONS_DEFAULT_CURSOR | CONS_LOCAL_CURSOR:
974 cap = &scp->dflt_curs_attr;
975 break;
976 }
977 if (((int *)data)[0] & CONS_CHARCURSOR_COLORS) {
978 ((int *)data)[1] = cap->bg[0];
979 ((int *)data)[2] = cap->bg[1];
980 } else if (((int *)data)[0] & CONS_MOUSECURSOR_COLORS) {
981 ((int *)data)[1] = cap->mouse_ba;
982 ((int *)data)[2] = cap->mouse_ia;
983 } else {
984 ((int *)data)[1] = cap->base;
985 ((int *)data)[2] = cap->height;
986 }
987 ((int *)data)[0] = cap->flags;
988 return 0;
989
990 case CONS_SETCURSORSHAPE: /* set cursor shape (new interface) */
991 s = spltty();
992 sc_change_cursor_shape(
993 scp, ((int *)data)[0], ((int *)data)[1], ((int *)data)[2]);
994 splx(s);
995 return 0;
996
997 case CONS_BELLTYPE: /* set bell type sound/visual */
998 if ((*(int *)data) & CONS_VISUAL_BELL)
999 sc->flags |= SC_VISUAL_BELL;
1000 else
1001 sc->flags &= ~SC_VISUAL_BELL;
1002 if ((*(int *)data) & CONS_QUIET_BELL)
1003 sc->flags |= SC_QUIET_BELL;
1004 else
1005 sc->flags &= ~SC_QUIET_BELL;
1006 return 0;
1007
1008 case CONS_GETINFO: /* get current (virtual) console info */
1009 {
1010 vid_info_t *ptr = (vid_info_t *)data;
1011 if (ptr->size == sizeof(struct vid_info)) {
1012 ptr->m_num = sc->cur_scp->index;
1013 ptr->font_size = scp->font_size;
1014 ptr->mv_col = scp->xpos;
1015 ptr->mv_row = scp->ypos;
1016 ptr->mv_csz = scp->xsize;
1017 ptr->mv_rsz = scp->ysize;
1018 ptr->mv_hsz =
1019 (scp->history != NULL) ? scp->history->vtb_rows : 0;
1020 /*
1021 * The following fields are filled by the terminal
1022 * emulator. XXX
1023 *
1024 * ptr->mv_norm.fore
1025 * ptr->mv_norm.back
1026 * ptr->mv_rev.fore
1027 * ptr->mv_rev.back
1028 */
1029 ptr->mv_grfc.fore = 0; /* not supported */
1030 ptr->mv_grfc.back = 0; /* not supported */
1031 ptr->mv_ovscan = scp->border;
1032 if (scp == sc->cur_scp)
1033 save_kbd_state(scp);
1034 ptr->mk_keylock = scp->status & LOCK_MASK;
1035 return 0;
1036 }
1037 return EINVAL;
1038 }
1039
1040 case CONS_GETVERS: /* get version number */
1041 *(int *)data = 0x200; /* version 2.0 */
1042 return 0;
1043
1044 case CONS_IDLE: /* see if the screen has been idle */
1045 /*
1046 * When the screen is in the GRAPHICS_MODE or UNKNOWN_MODE,
1047 * the user process may have been writing something on the
1048 * screen and syscons is not aware of it. Declare the screen
1049 * is NOT idle if it is in one of these modes. But there is
1050 * an exception to it; if a screen saver is running in the
1051 * graphics mode in the current screen, we should say that the
1052 * screen has been idle.
1053 */
1054 *(int *)data = (sc->flags & SC_SCRN_IDLE) &&
1055 (!ISGRAPHSC(sc->cur_scp) ||
1056 (sc->cur_scp->status & SAVER_RUNNING));
1057 return 0;
1058
1059 case CONS_SAVERMODE: /* set saver mode */
1060 switch (*(int *)data) {
1061 case CONS_NO_SAVER:
1062 case CONS_USR_SAVER:
1063 /* if a LKM screen saver is running, stop it first. */
1064 scsplash_stick(FALSE);
1065 saver_mode = *(int *)data;
1066 s = spltty();
1067 #ifdef DEV_SPLASH
1068 if ((error = wait_scrn_saver_stop(NULL))) {
1069 splx(s);
1070 return error;
1071 }
1072 #endif
1073 run_scrn_saver = TRUE;
1074 if (saver_mode == CONS_USR_SAVER)
1075 scp->status |= SAVER_RUNNING;
1076 else
1077 scp->status &= ~SAVER_RUNNING;
1078 scsplash_stick(TRUE);
1079 splx(s);
1080 break;
1081 case CONS_LKM_SAVER:
1082 s = spltty();
1083 if ((saver_mode == CONS_USR_SAVER) &&
1084 (scp->status & SAVER_RUNNING))
1085 scp->status &= ~SAVER_RUNNING;
1086 saver_mode = *(int *)data;
1087 splx(s);
1088 break;
1089 default:
1090 return EINVAL;
1091 }
1092 return 0;
1093
1094 case CONS_SAVERSTART: /* immediately start/stop the screen saver */
1095 /*
1096 * Note that this ioctl does not guarantee the screen saver
1097 * actually starts or stops. It merely attempts to do so...
1098 */
1099 s = spltty();
1100 run_scrn_saver = (*(int *)data != 0);
1101 if (run_scrn_saver)
1102 sc->scrn_time_stamp -= scrn_blank_time;
1103 splx(s);
1104 return 0;
1105
1106 case CONS_SCRSHOT: /* get a screen shot */
1107 {
1108 int retval, hist_rsz;
1109 size_t lsize, csize;
1110 vm_offset_t frbp, hstp;
1111 unsigned lnum;
1112 scrshot_t *ptr = (scrshot_t *)data;
1113 void *outp = ptr->buf;
1114
1115 if (ptr->x < 0 || ptr->y < 0 || ptr->xsize < 0 ||
1116 ptr->ysize < 0)
1117 return EINVAL;
1118 s = spltty();
1119 if (ISGRAPHSC(scp)) {
1120 splx(s);
1121 return EOPNOTSUPP;
1122 }
1123 hist_rsz = (scp->history != NULL) ? scp->history->vtb_rows : 0;
1124 if (((u_int)ptr->x + ptr->xsize) > scp->xsize ||
1125 ((u_int)ptr->y + ptr->ysize) > (scp->ysize + hist_rsz)) {
1126 splx(s);
1127 return EINVAL;
1128 }
1129
1130 lsize = scp->xsize * sizeof(u_int16_t);
1131 csize = ptr->xsize * sizeof(u_int16_t);
1132 /* Pointer to the last line of framebuffer */
1133 frbp = scp->vtb.vtb_buffer + scp->ysize * lsize +
1134 ptr->x * sizeof(u_int16_t);
1135 /* Pointer to the last line of target buffer */
1136 outp = (char *)outp + ptr->ysize * csize;
1137 /* Pointer to the last line of history buffer */
1138 if (scp->history != NULL)
1139 hstp = scp->history->vtb_buffer +
1140 sc_vtb_tail(scp->history) * sizeof(u_int16_t) +
1141 ptr->x * sizeof(u_int16_t);
1142 else
1143 hstp = 0;
1144
1145 retval = 0;
1146 for (lnum = 0; lnum < (ptr->y + ptr->ysize); lnum++) {
1147 if (lnum < scp->ysize) {
1148 frbp -= lsize;
1149 } else {
1150 hstp -= lsize;
1151 if (hstp < scp->history->vtb_buffer)
1152 hstp += scp->history->vtb_rows * lsize;
1153 frbp = hstp;
1154 }
1155 if (lnum < ptr->y)
1156 continue;
1157 outp = (char *)outp - csize;
1158 retval = copyout((void *)frbp, outp, csize);
1159 if (retval != 0)
1160 break;
1161 }
1162 splx(s);
1163 return retval;
1164 }
1165
1166 case VT_SETMODE: /* set screen switcher mode */
1167 {
1168 struct vt_mode *mode;
1169 struct proc *p1;
1170
1171 mode = (struct vt_mode *)data;
1172 DPRINTF(5, ("%s%d: VT_SETMODE ", SC_DRIVER_NAME, sc->unit));
1173 if (scp->smode.mode == VT_PROCESS) {
1174 p1 = pfind(scp->pid);
1175 if (scp->proc == p1 && scp->proc != td->td_proc) {
1176 if (p1)
1177 PROC_UNLOCK(p1);
1178 DPRINTF(5, ("error EPERM\n"));
1179 return EPERM;
1180 }
1181 if (p1)
1182 PROC_UNLOCK(p1);
1183 }
1184 s = spltty();
1185 if (mode->mode == VT_AUTO) {
1186 scp->smode.mode = VT_AUTO;
1187 scp->proc = NULL;
1188 scp->pid = 0;
1189 DPRINTF(5, ("VT_AUTO, "));
1190 if ((scp == sc->cur_scp) &&
1191 (sc->unit == sc_console_unit))
1192 cnavailable(sc_consptr, TRUE);
1193 /* were we in the middle of the vty switching process?
1194 */
1195 if (finish_vt_rel(scp, TRUE, &s) == 0)
1196 DPRINTF(5, ("reset WAIT_REL, "));
1197 if (finish_vt_acq(scp) == 0)
1198 DPRINTF(5, ("reset WAIT_ACQ, "));
1199 } else {
1200 if (!ISSIGVALID(mode->relsig) ||
1201 !ISSIGVALID(mode->acqsig) ||
1202 !ISSIGVALID(mode->frsig)) {
1203 splx(s);
1204 DPRINTF(5, ("error EINVAL\n"));
1205 return EINVAL;
1206 }
1207 DPRINTF(5, ("VT_PROCESS %d, ", td->td_proc->p_pid));
1208 bcopy(data, &scp->smode, sizeof(struct vt_mode));
1209 scp->proc = td->td_proc;
1210 scp->pid = scp->proc->p_pid;
1211 if ((scp == sc->cur_scp) &&
1212 (sc->unit == sc_console_unit))
1213 cnavailable(sc_consptr, FALSE);
1214 }
1215 splx(s);
1216 DPRINTF(5, ("\n"));
1217 return 0;
1218 }
1219
1220 case VT_GETMODE: /* get screen switcher mode */
1221 bcopy(&scp->smode, data, sizeof(struct vt_mode));
1222 return 0;
1223
1224 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1225 defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1226 case _IO('v', 4):
1227 ival = IOCPARM_IVAL(data);
1228 data = (caddr_t)&ival;
1229 /* FALLTHROUGH */
1230 #endif
1231 case VT_RELDISP: /* screen switcher ioctl */
1232 s = spltty();
1233 /*
1234 * This must be the current vty which is in the VT_PROCESS
1235 * switching mode...
1236 */
1237 if ((scp != sc->cur_scp) || (scp->smode.mode != VT_PROCESS)) {
1238 splx(s);
1239 return EINVAL;
1240 }
1241 /* ...and this process is controlling it. */
1242 if (scp->proc != td->td_proc) {
1243 splx(s);
1244 return EPERM;
1245 }
1246 error = EINVAL;
1247 switch (*(int *)data) {
1248 case VT_FALSE: /* user refuses to release screen, abort */
1249 if ((error = finish_vt_rel(scp, FALSE, &s)) == 0)
1250 DPRINTF(5,
1251 ("%s%d: VT_FALSE\n", SC_DRIVER_NAME,
1252 sc->unit));
1253 break;
1254 case VT_TRUE: /* user has released screen, go on */
1255 if ((error = finish_vt_rel(scp, TRUE, &s)) == 0)
1256 DPRINTF(5,
1257 ("%s%d: VT_TRUE\n", SC_DRIVER_NAME,
1258 sc->unit));
1259 break;
1260 case VT_ACKACQ: /* acquire acknowledged, switch completed */
1261 if ((error = finish_vt_acq(scp)) == 0)
1262 DPRINTF(5,
1263 ("%s%d: VT_ACKACQ\n", SC_DRIVER_NAME,
1264 sc->unit));
1265 break;
1266 default:
1267 break;
1268 }
1269 splx(s);
1270 return error;
1271
1272 case VT_OPENQRY: /* return free virtual console */
1273 for (i = sc->first_vty; i < sc->first_vty + sc->vtys; i++) {
1274 tp = SC_DEV(sc, i);
1275 if (!tty_opened_ns(tp)) {
1276 *(int *)data = i + 1;
1277 return 0;
1278 }
1279 }
1280 return EINVAL;
1281
1282 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1283 defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1284 case _IO('v', 5):
1285 ival = IOCPARM_IVAL(data);
1286 data = (caddr_t)&ival;
1287 /* FALLTHROUGH */
1288 #endif
1289 case VT_ACTIVATE: /* switch to screen *data */
1290 i = (*(int *)data == 0) ? scp->index : (*(int *)data - 1);
1291 s = spltty();
1292 error = sc_clean_up(sc->cur_scp);
1293 splx(s);
1294 if (error)
1295 return error;
1296 error = sc_switch_scr(sc, i);
1297 return (error);
1298
1299 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1300 defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1301 case _IO('v', 6):
1302 ival = IOCPARM_IVAL(data);
1303 data = (caddr_t)&ival;
1304 /* FALLTHROUGH */
1305 #endif
1306 case VT_WAITACTIVE: /* wait for switch to occur */
1307 i = (*(int *)data == 0) ? scp->index : (*(int *)data - 1);
1308 if ((i < sc->first_vty) || (i >= sc->first_vty + sc->vtys))
1309 return EINVAL;
1310 if (i == sc->cur_scp->index)
1311 return 0;
1312 error =
1313 tsleep(VTY_WCHAN(sc, i), (PZERO + 1) | PCATCH, "waitvt", 0);
1314 return error;
1315
1316 case VT_GETACTIVE: /* get active vty # */
1317 *(int *)data = sc->cur_scp->index + 1;
1318 return 0;
1319
1320 case VT_GETINDEX: /* get this vty # */
1321 *(int *)data = scp->index + 1;
1322 return 0;
1323
1324 case VT_LOCKSWITCH: /* prevent vty switching */
1325 if ((*(int *)data) & 0x01)
1326 sc->flags |= SC_SCRN_VTYLOCK;
1327 else
1328 sc->flags &= ~SC_SCRN_VTYLOCK;
1329 return 0;
1330
1331 case KDENABIO: /* allow io operations */
1332 error = priv_check(td, PRIV_IO);
1333 if (error != 0)
1334 return error;
1335 error = securelevel_gt(td->td_ucred, 0);
1336 if (error != 0)
1337 return error;
1338 #ifdef __i386__
1339 td->td_frame->tf_eflags |= PSL_IOPL;
1340 #elif defined(__amd64__)
1341 td->td_frame->tf_rflags |= PSL_IOPL;
1342 #endif
1343 return 0;
1344
1345 case KDDISABIO: /* disallow io operations (default) */
1346 #ifdef __i386__
1347 td->td_frame->tf_eflags &= ~PSL_IOPL;
1348 #elif defined(__amd64__)
1349 td->td_frame->tf_rflags &= ~PSL_IOPL;
1350 #endif
1351 return 0;
1352
1353 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1354 defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1355 case _IO('K', 20):
1356 ival = IOCPARM_IVAL(data);
1357 data = (caddr_t)&ival;
1358 /* FALLTHROUGH */
1359 #endif
1360 case KDSKBSTATE: /* set keyboard state (locks) */
1361 if (*(int *)data & ~LOCK_MASK)
1362 return EINVAL;
1363 scp->status &= ~LOCK_MASK;
1364 scp->status |= *(int *)data;
1365 if (scp == sc->cur_scp)
1366 update_kbd_state(scp, scp->status, LOCK_MASK);
1367 return 0;
1368
1369 case KDGKBSTATE: /* get keyboard state (locks) */
1370 if (scp == sc->cur_scp)
1371 save_kbd_state(scp);
1372 *(int *)data = scp->status & LOCK_MASK;
1373 return 0;
1374
1375 case KDGETREPEAT: /* get keyboard repeat & delay rates */
1376 case KDSETREPEAT: /* set keyboard repeat & delay rates (new) */
1377 error = kbdd_ioctl(sc->kbd, cmd, data);
1378 if (error == ENOIOCTL)
1379 error = ENODEV;
1380 return error;
1381
1382 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1383 defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1384 case _IO('K', 67):
1385 ival = IOCPARM_IVAL(data);
1386 data = (caddr_t)&ival;
1387 /* FALLTHROUGH */
1388 #endif
1389 case KDSETRAD: /* set keyboard repeat & delay rates (old) */
1390 if (*(int *)data & ~0x7f)
1391 return EINVAL;
1392 error = kbdd_ioctl(sc->kbd, KDSETRAD, data);
1393 if (error == ENOIOCTL)
1394 error = ENODEV;
1395 return error;
1396
1397 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1398 defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1399 case _IO('K', 7):
1400 ival = IOCPARM_IVAL(data);
1401 data = (caddr_t)&ival;
1402 /* FALLTHROUGH */
1403 #endif
1404 case KDSKBMODE: /* set keyboard mode */
1405 switch (*(int *)data) {
1406 case K_XLATE: /* switch to XLT ascii mode */
1407 case K_RAW: /* switch to RAW scancode mode */
1408 case K_CODE: /* switch to CODE mode */
1409 scp->kbd_mode = *(int *)data;
1410 if (scp == sc->cur_scp)
1411 (void)kbdd_ioctl(sc->kbd, KDSKBMODE, data);
1412 return 0;
1413 default:
1414 return EINVAL;
1415 }
1416 /* NOT REACHED */
1417
1418 case KDGKBMODE: /* get keyboard mode */
1419 *(int *)data = scp->kbd_mode;
1420 return 0;
1421
1422 case KDGKBINFO:
1423 error = kbdd_ioctl(sc->kbd, cmd, data);
1424 if (error == ENOIOCTL)
1425 error = ENODEV;
1426 return error;
1427
1428 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1429 defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1430 case _IO('K', 8):
1431 ival = IOCPARM_IVAL(data);
1432 data = (caddr_t)&ival;
1433 /* FALLTHROUGH */
1434 #endif
1435 case KDMKTONE: /* sound the bell */
1436 if (*(int *)data)
1437 sc_bell(scp, (*(int *)data) & 0xffff,
1438 (((*(int *)data) >> 16) & 0xffff) * hz / 1000);
1439 else
1440 sc_bell(scp, scp->bell_pitch, scp->bell_duration);
1441 return 0;
1442
1443 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1444 defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1445 case _IO('K', 63):
1446 ival = IOCPARM_IVAL(data);
1447 data = (caddr_t)&ival;
1448 /* FALLTHROUGH */
1449 #endif
1450 case KIOCSOUND: /* make tone (*data) hz */
1451 if (scp == sc->cur_scp) {
1452 if (*(int *)data)
1453 return sc_tone(*(int *)data);
1454 else
1455 return sc_tone(0);
1456 }
1457 return 0;
1458
1459 case KDGKBTYPE: /* get keyboard type */
1460 error = kbdd_ioctl(sc->kbd, cmd, data);
1461 if (error == ENOIOCTL) {
1462 /* always return something? XXX */
1463 *(int *)data = 0;
1464 }
1465 return 0;
1466
1467 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1468 defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1469 case _IO('K', 66):
1470 ival = IOCPARM_IVAL(data);
1471 data = (caddr_t)&ival;
1472 /* FALLTHROUGH */
1473 #endif
1474 case KDSETLED: /* set keyboard LED status */
1475 if (*(int *)data & ~LED_MASK) /* FIXME: LOCK_MASK? */
1476 return EINVAL;
1477 scp->status &= ~LED_MASK;
1478 scp->status |= *(int *)data;
1479 if (scp == sc->cur_scp)
1480 update_kbd_leds(scp, scp->status);
1481 return 0;
1482
1483 case KDGETLED: /* get keyboard LED status */
1484 if (scp == sc->cur_scp)
1485 save_kbd_state(scp);
1486 *(int *)data = scp->status & LED_MASK;
1487 return 0;
1488
1489 case KBADDKBD: /* add/remove keyboard to/from mux */
1490 case KBRELKBD:
1491 error = kbdd_ioctl(sc->kbd, cmd, data);
1492 if (error == ENOIOCTL)
1493 error = ENODEV;
1494 return error;
1495
1496 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1497 defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1498 case _IO('c', 110):
1499 ival = IOCPARM_IVAL(data);
1500 data = (caddr_t)&ival;
1501 /* FALLTHROUGH */
1502 #endif
1503 case CONS_SETKBD: /* set the new keyboard */
1504 {
1505 keyboard_t *newkbd;
1506
1507 s = spltty();
1508 newkbd = kbd_get_keyboard(*(int *)data);
1509 if (newkbd == NULL) {
1510 splx(s);
1511 return EINVAL;
1512 }
1513 error = 0;
1514 if (sc->kbd != newkbd) {
1515 i = kbd_allocate(newkbd->kb_name, newkbd->kb_unit,
1516 (void *)&sc->kbd, sckbdevent, sc);
1517 /* i == newkbd->kb_index */
1518 if (i >= 0) {
1519 if (sc->kbd != NULL) {
1520 save_kbd_state(sc->cur_scp);
1521 kbd_release(
1522 sc->kbd, (void *)&sc->kbd);
1523 }
1524 sc->kbd =
1525 kbd_get_keyboard(i); /* sc->kbd == newkbd */
1526 (void)kbdd_ioctl(sc->kbd, KDSKBMODE,
1527 (caddr_t)&sc->cur_scp->kbd_mode);
1528 update_kbd_state(sc->cur_scp,
1529 sc->cur_scp->status, LOCK_MASK);
1530 } else {
1531 error = EPERM; /* XXX */
1532 }
1533 }
1534 splx(s);
1535 return error;
1536 }
1537
1538 case CONS_RELKBD: /* release the current keyboard */
1539 s = spltty();
1540 error = 0;
1541 if (sc->kbd != NULL) {
1542 save_kbd_state(sc->cur_scp);
1543 error = kbd_release(sc->kbd, (void *)&sc->kbd);
1544 if (error == 0)
1545 sc->kbd = NULL;
1546 }
1547 splx(s);
1548 return error;
1549
1550 case CONS_GETTERM: /* get the current terminal emulator info */
1551 {
1552 sc_term_sw_t *sw;
1553
1554 if (((term_info_t *)data)->ti_index == 0) {
1555 sw = scp->tsw;
1556 } else {
1557 sw = sc_term_match_by_number(
1558 ((term_info_t *)data)->ti_index);
1559 }
1560 if (sw != NULL) {
1561 strncpy(((term_info_t *)data)->ti_name, sw->te_name,
1562 sizeof(((term_info_t *)data)->ti_name));
1563 strncpy(((term_info_t *)data)->ti_desc, sw->te_desc,
1564 sizeof(((term_info_t *)data)->ti_desc));
1565 ((term_info_t *)data)->ti_flags = 0;
1566 return 0;
1567 } else {
1568 ((term_info_t *)data)->ti_name[0] = '\0';
1569 ((term_info_t *)data)->ti_desc[0] = '\0';
1570 ((term_info_t *)data)->ti_flags = 0;
1571 return EINVAL;
1572 }
1573 }
1574
1575 case CONS_SETTERM: /* set the current terminal emulator */
1576 s = spltty();
1577 error = sc_init_emulator(scp, ((term_info_t *)data)->ti_name);
1578 /* FIXME: what if scp == sc_console! XXX */
1579 splx(s);
1580 return error;
1581
1582 case GIO_SCRNMAP: /* get output translation table */
1583 bcopy(&sc->scr_map, data, sizeof(sc->scr_map));
1584 return 0;
1585
1586 case PIO_SCRNMAP: /* set output translation table */
1587 bcopy(data, &sc->scr_map, sizeof(sc->scr_map));
1588 for (i = 0; i < sizeof(sc->scr_map); i++) {
1589 sc->scr_rmap[sc->scr_map[i]] = i;
1590 }
1591 return 0;
1592
1593 case GIO_KEYMAP: /* get keyboard translation table */
1594 case PIO_KEYMAP: /* set keyboard translation table */
1595 case OGIO_KEYMAP: /* get keyboard translation table (compat) */
1596 case OPIO_KEYMAP: /* set keyboard translation table (compat) */
1597 case GIO_DEADKEYMAP: /* get accent key translation table */
1598 case PIO_DEADKEYMAP: /* set accent key translation table */
1599 case OGIO_DEADKEYMAP: /* get accent key translation table (compat) */
1600 case OPIO_DEADKEYMAP: /* set accent key translation table (compat) */
1601 case GETFKEY: /* get function key string */
1602 case SETFKEY: /* set function key string */
1603 error = kbdd_ioctl(sc->kbd, cmd, data);
1604 if (error == ENOIOCTL)
1605 error = ENODEV;
1606 return error;
1607
1608 #ifndef SC_NO_FONT_LOADING
1609
1610 case PIO_FONT8x8: /* set 8x8 dot font */
1611 if (!ISFONTAVAIL(sc->adp->va_flags))
1612 return ENXIO;
1613 bcopy(data, sc->font_8, 8 * 256);
1614 sc->fonts_loaded |= FONT_8;
1615 /*
1616 * FONT KLUDGE
1617 * Always use the font page #0. XXX
1618 * Don't load if the current font size is not 8x8.
1619 */
1620 if (ISTEXTSC(sc->cur_scp) && (sc->cur_scp->font_size < 14))
1621 sc_load_font(sc->cur_scp, 0, 8, 8, sc->font_8, 0, 256);
1622 return 0;
1623
1624 case GIO_FONT8x8: /* get 8x8 dot font */
1625 if (!ISFONTAVAIL(sc->adp->va_flags))
1626 return ENXIO;
1627 if (sc->fonts_loaded & FONT_8) {
1628 bcopy(sc->font_8, data, 8 * 256);
1629 return 0;
1630 } else
1631 return ENXIO;
1632
1633 case PIO_FONT8x14: /* set 8x14 dot font */
1634 if (!ISFONTAVAIL(sc->adp->va_flags))
1635 return ENXIO;
1636 bcopy(data, sc->font_14, 14 * 256);
1637 sc->fonts_loaded |= FONT_14;
1638 /*
1639 * FONT KLUDGE
1640 * Always use the font page #0. XXX
1641 * Don't load if the current font size is not 8x14.
1642 */
1643 if (ISTEXTSC(sc->cur_scp) && (sc->cur_scp->font_size >= 14) &&
1644 (sc->cur_scp->font_size < 16))
1645 sc_load_font(
1646 sc->cur_scp, 0, 14, 8, sc->font_14, 0, 256);
1647 return 0;
1648
1649 case GIO_FONT8x14: /* get 8x14 dot font */
1650 if (!ISFONTAVAIL(sc->adp->va_flags))
1651 return ENXIO;
1652 if (sc->fonts_loaded & FONT_14) {
1653 bcopy(sc->font_14, data, 14 * 256);
1654 return 0;
1655 } else
1656 return ENXIO;
1657
1658 case PIO_FONT8x16: /* set 8x16 dot font */
1659 if (!ISFONTAVAIL(sc->adp->va_flags))
1660 return ENXIO;
1661 bcopy(data, sc->font_16, 16 * 256);
1662 sc->fonts_loaded |= FONT_16;
1663 /*
1664 * FONT KLUDGE
1665 * Always use the font page #0. XXX
1666 * Don't load if the current font size is not 8x16.
1667 */
1668 if (ISTEXTSC(sc->cur_scp) && (sc->cur_scp->font_size >= 16))
1669 sc_load_font(
1670 sc->cur_scp, 0, 16, 8, sc->font_16, 0, 256);
1671 return 0;
1672
1673 case GIO_FONT8x16: /* get 8x16 dot font */
1674 if (!ISFONTAVAIL(sc->adp->va_flags))
1675 return ENXIO;
1676 if (sc->fonts_loaded & FONT_16) {
1677 bcopy(sc->font_16, data, 16 * 256);
1678 return 0;
1679 } else
1680 return ENXIO;
1681
1682 #endif /* SC_NO_FONT_LOADING */
1683
1684 default:
1685 break;
1686 }
1687
1688 return (ENOIOCTL);
1689 }
1690
1691 static int
consolectl_ioctl(struct cdev * dev,u_long cmd,caddr_t data,int fflag,struct thread * td)1692 consolectl_ioctl(
1693 struct cdev *dev, u_long cmd, caddr_t data, int fflag, struct thread *td)
1694 {
1695
1696 return sctty_ioctl(dev->si_drv1, cmd, data, td);
1697 }
1698
1699 static int
consolectl_close(struct cdev * dev,int flags,int mode,struct thread * td)1700 consolectl_close(struct cdev *dev, int flags, int mode, struct thread *td)
1701 {
1702 #ifndef SC_NO_SYSMOUSE
1703 mouse_info_t info;
1704 memset(&info, 0, sizeof(info));
1705 info.operation = MOUSE_ACTION;
1706
1707 /*
1708 * Make sure all buttons are released when moused and other
1709 * console daemons exit, so that no buttons are left pressed.
1710 */
1711 (void)sctty_ioctl(dev->si_drv1, CONS_MOUSECTL, (caddr_t)&info, td);
1712 #endif
1713 return (0);
1714 }
1715
1716 static void
sc_cnprobe(struct consdev * cp)1717 sc_cnprobe(struct consdev *cp)
1718 {
1719 int unit;
1720 int flags;
1721
1722 if (!vty_enabled(VTY_SC)) {
1723 cp->cn_pri = CN_DEAD;
1724 return;
1725 }
1726
1727 cp->cn_pri = sc_get_cons_priority(&unit, &flags);
1728
1729 /* a video card is always required */
1730 if (!scvidprobe(unit, flags, TRUE))
1731 cp->cn_pri = CN_DEAD;
1732
1733 /* syscons will become console even when there is no keyboard */
1734 sckbdprobe(unit, flags, TRUE);
1735
1736 if (cp->cn_pri == CN_DEAD)
1737 return;
1738
1739 /* initialize required fields */
1740 strcpy(cp->cn_name, "ttyv0");
1741 }
1742
1743 static void
sc_cninit(struct consdev * cp)1744 sc_cninit(struct consdev *cp)
1745 {
1746 int unit;
1747 int flags;
1748
1749 sc_get_cons_priority(&unit, &flags);
1750 scinit(unit, flags | SC_KERNEL_CONSOLE);
1751 sc_console_unit = unit;
1752 sc_console = sc_get_stat(sc_get_softc(unit, SC_KERNEL_CONSOLE)->dev[0]);
1753 sc_consptr = cp;
1754 }
1755
1756 static void
sc_cnterm(struct consdev * cp)1757 sc_cnterm(struct consdev *cp)
1758 {
1759 void *ts;
1760 int i;
1761
1762 /* we are not the kernel console any more, release everything */
1763
1764 if (sc_console_unit < 0)
1765 return; /* shouldn't happen */
1766
1767 #if 0 /* XXX */
1768 sc_clear_screen(sc_console);
1769 sccnupdate(sc_console);
1770 #endif
1771
1772 if (sc_ktsw != NULL) {
1773 for (i = 0; i <= mp_maxid; i++) {
1774 ts = sc_kts[i];
1775 sc_kts[i] = NULL;
1776 (*sc_ktsw->te_term)(sc_console, &ts);
1777 free(ts, M_DEVBUF);
1778 }
1779 sc_ktsw = NULL;
1780 }
1781 scterm(sc_console_unit, SC_KERNEL_CONSOLE);
1782 sc_console_unit = -1;
1783 sc_console = NULL;
1784 }
1785
1786 static void sccnclose(sc_softc_t *sc, struct sc_cnstate *sp);
1787 static int sc_cngetc_locked(struct sc_cnstate *sp);
1788 static void sccnkbdlock(sc_softc_t *sc, struct sc_cnstate *sp);
1789 static void sccnkbdunlock(sc_softc_t *sc, struct sc_cnstate *sp);
1790 static void sccnopen(sc_softc_t *sc, struct sc_cnstate *sp, int flags);
1791 static void sccnscrlock(sc_softc_t *sc, struct sc_cnstate *sp);
1792 static void sccnscrunlock(sc_softc_t *sc, struct sc_cnstate *sp);
1793
1794 static void
sccnkbdlock(sc_softc_t * sc,struct sc_cnstate * sp)1795 sccnkbdlock(sc_softc_t *sc, struct sc_cnstate *sp)
1796 {
1797 /*
1798 * Locking method: hope for the best.
1799 * The keyboard is supposed to be Giant locked. We can't handle that
1800 * in general. The kdb_active case here is not safe, and we will
1801 * proceed without the lock in all cases.
1802 */
1803 sp->kbd_locked = !kdb_active && mtx_trylock(&Giant);
1804 }
1805
1806 static void
sccnkbdunlock(sc_softc_t * sc,struct sc_cnstate * sp)1807 sccnkbdunlock(sc_softc_t *sc, struct sc_cnstate *sp)
1808 {
1809 if (sp->kbd_locked)
1810 mtx_unlock(&Giant);
1811 sp->kbd_locked = FALSE;
1812 }
1813
1814 static void
sccnscrlock(sc_softc_t * sc,struct sc_cnstate * sp)1815 sccnscrlock(sc_softc_t *sc, struct sc_cnstate *sp)
1816 {
1817 int retries;
1818
1819 /**
1820 * Locking method:
1821 * - if kdb_active and video_mtx is not owned by anyone, then lock
1822 * by kdb remaining active
1823 * - if !kdb_active, try to acquire video_mtx without blocking or
1824 * recursing; if we get it then it works normally.
1825 * Note that video_mtx is especially unusable if we already own it,
1826 * since then it is protecting something and syscons is not reentrant
1827 * enough to ignore the protection even in the kdb_active case.
1828 */
1829 if (kdb_active) {
1830 sp->kdb_locked = sc->video_mtx.mtx_lock == MTX_UNOWNED ||
1831 SCHEDULER_STOPPED();
1832 sp->mtx_locked = FALSE;
1833 } else {
1834 sp->kdb_locked = FALSE;
1835 for (retries = 0; retries < 1000; retries++) {
1836 sp->mtx_locked = mtx_trylock_spin_flags(
1837 &sc->video_mtx, MTX_QUIET) != 0;
1838 if (SCHEDULER_STOPPED()) {
1839 sp->kdb_locked = TRUE;
1840 sp->mtx_locked = FALSE;
1841 break;
1842 }
1843 if (sp->mtx_locked)
1844 break;
1845 DELAY(1);
1846 }
1847 }
1848 }
1849
1850 static void
sccnscrunlock(sc_softc_t * sc,struct sc_cnstate * sp)1851 sccnscrunlock(sc_softc_t *sc, struct sc_cnstate *sp)
1852 {
1853 if (sp->mtx_locked)
1854 mtx_unlock_spin(&sc->video_mtx);
1855 sp->mtx_locked = sp->kdb_locked = FALSE;
1856 }
1857
1858 static void
sccnopen(sc_softc_t * sc,struct sc_cnstate * sp,int flags)1859 sccnopen(sc_softc_t *sc, struct sc_cnstate *sp, int flags)
1860 {
1861 int kbd_mode;
1862
1863 /* assert(sc_console_unit >= 0) */
1864
1865 sp->kbd_opened = FALSE;
1866 sp->scr_opened = FALSE;
1867 sp->kbd_locked = FALSE;
1868
1869 /* Opening the keyboard is optional. */
1870 if (!(flags & 1) || sc->kbd == NULL)
1871 goto over_keyboard;
1872
1873 sccnkbdlock(sc, sp);
1874
1875 /*
1876 * Make sure the keyboard is accessible even when the kbd device
1877 * driver is disabled.
1878 */
1879 kbdd_enable(sc->kbd);
1880
1881 /* Switch the keyboard to console mode (K_XLATE, polled) on all scp's.
1882 */
1883 kbd_mode = K_XLATE;
1884 (void)kbdd_ioctl(sc->kbd, KDSKBMODE, (caddr_t)&kbd_mode);
1885 sc->kbd_open_level++;
1886 kbdd_poll(sc->kbd, TRUE);
1887
1888 sp->kbd_opened = TRUE;
1889 over_keyboard:;
1890
1891 /* The screen is opened iff locking it succeeds. */
1892 sccnscrlock(sc, sp);
1893 if (!sp->kdb_locked && !sp->mtx_locked)
1894 return;
1895 sp->scr_opened = TRUE;
1896
1897 /* The screen switch is optional. */
1898 if (!(flags & 2))
1899 return;
1900
1901 /* try to switch to the kernel console screen */
1902 if (!cold && sc->cur_scp->index != sc_console->index &&
1903 sc->cur_scp->smode.mode == VT_AUTO &&
1904 sc_console->smode.mode == VT_AUTO)
1905 sc_switch_scr(sc, sc_console->index);
1906 }
1907
1908 static void
sccnclose(sc_softc_t * sc,struct sc_cnstate * sp)1909 sccnclose(sc_softc_t *sc, struct sc_cnstate *sp)
1910 {
1911 sp->scr_opened = FALSE;
1912 sccnscrunlock(sc, sp);
1913
1914 if (!sp->kbd_opened)
1915 return;
1916
1917 /* Restore keyboard mode (for the current, possibly-changed scp). */
1918 kbdd_poll(sc->kbd, FALSE);
1919 if (--sc->kbd_open_level == 0)
1920 (void)kbdd_ioctl(
1921 sc->kbd, KDSKBMODE, (caddr_t)&sc->cur_scp->kbd_mode);
1922
1923 kbdd_disable(sc->kbd);
1924 sp->kbd_opened = FALSE;
1925 sccnkbdunlock(sc, sp);
1926 }
1927
1928 /*
1929 * Grabbing switches the screen and keyboard focus to sc_console and the
1930 * keyboard mode to (K_XLATE, polled). Only switching to polled mode is
1931 * essential (for preventing the interrupt handler from eating input
1932 * between polls). Focus is part of the UI, and the other switches are
1933 * work just was well when they are done on every entry and exit.
1934 *
1935 * Screen switches while grabbed are supported, and to maintain focus for
1936 * this ungrabbing and closing only restore the polling state and then
1937 * the keyboard mode if on the original screen.
1938 */
1939
1940 static void
sc_cngrab(struct consdev * cp)1941 sc_cngrab(struct consdev *cp)
1942 {
1943 sc_softc_t *sc;
1944 int lev;
1945
1946 sc = sc_console->sc;
1947 lev = atomic_fetchadd_int(&sc->grab_level, 1);
1948 if (lev >= 0 && lev < 2) {
1949 sccnopen(sc, &sc->grab_state[lev], 1 | 2);
1950 sccnscrunlock(sc, &sc->grab_state[lev]);
1951 sccnkbdunlock(sc, &sc->grab_state[lev]);
1952 }
1953 }
1954
1955 static void
sc_cnungrab(struct consdev * cp)1956 sc_cnungrab(struct consdev *cp)
1957 {
1958 sc_softc_t *sc;
1959 int lev;
1960
1961 sc = sc_console->sc;
1962 lev = atomic_load_acq_int(&sc->grab_level) - 1;
1963 if (lev >= 0 && lev < 2) {
1964 sccnkbdlock(sc, &sc->grab_state[lev]);
1965 sccnscrlock(sc, &sc->grab_state[lev]);
1966 sccnclose(sc, &sc->grab_state[lev]);
1967 }
1968 atomic_add_int(&sc->grab_level, -1);
1969 }
1970
1971 static char sc_cnputc_log[0x1000];
1972 static u_int sc_cnputc_loghead;
1973 static u_int sc_cnputc_logtail;
1974
1975 static void
sc_cnputc(struct consdev * cd,int c)1976 sc_cnputc(struct consdev *cd, int c)
1977 {
1978 struct sc_cnstate st;
1979 u_char buf[1];
1980 scr_stat *scp = sc_console;
1981 void *oldts, *ts;
1982 struct sc_term_sw *oldtsw;
1983 #ifndef SC_NO_HISTORY
1984 #if 0
1985 struct tty *tp;
1986 #endif
1987 #endif /* !SC_NO_HISTORY */
1988 u_int head;
1989 int s;
1990
1991 /* assert(sc_console != NULL) */
1992
1993 sccnopen(scp->sc, &st, 0);
1994
1995 /*
1996 * Log the output.
1997 *
1998 * In the unlocked case, the logging is intentionally only
1999 * perfectly atomic for the indexes.
2000 */
2001 head = atomic_fetchadd_int(&sc_cnputc_loghead, 1);
2002 sc_cnputc_log[head % sizeof(sc_cnputc_log)] = c;
2003
2004 /*
2005 * If we couldn't open, do special reentrant output and return to defer
2006 * normal output.
2007 */
2008 if (!st.scr_opened) {
2009 ec_putc(c);
2010 return;
2011 }
2012
2013 #ifndef SC_NO_HISTORY
2014 if (scp == scp->sc->cur_scp && scp->status & SLKED) {
2015 scp->status &= ~SLKED;
2016 update_kbd_state(scp, scp->status, SLKED);
2017 if (scp->status & BUFFER_SAVED) {
2018 if (!sc_hist_restore(scp))
2019 sc_remove_cutmarking(scp);
2020 scp->status &= ~BUFFER_SAVED;
2021 scp->status |= CURSOR_ENABLED;
2022 sc_draw_cursor_image(scp);
2023 }
2024 #if 0
2025 /*
2026 * XXX: Now that TTY's have their own locks, we cannot process
2027 * any data after disabling scroll lock. cnputs already holds a
2028 * spinlock.
2029 */
2030 tp = SC_DEV(scp->sc, scp->index);
2031 /* XXX "tp" can be NULL */
2032 tty_lock(tp);
2033 if (tty_opened(tp))
2034 sctty_outwakeup(tp);
2035 tty_unlock(tp);
2036 #endif
2037 }
2038 #endif /* !SC_NO_HISTORY */
2039
2040 /* Play any output still in the log (our char may already be done). */
2041 while (sc_cnputc_logtail != atomic_load_acq_int(&sc_cnputc_loghead)) {
2042 buf[0] =
2043 sc_cnputc_log[sc_cnputc_logtail++ % sizeof(sc_cnputc_log)];
2044 if (atomic_load_acq_int(&sc_cnputc_loghead) -
2045 sc_cnputc_logtail >=
2046 sizeof(sc_cnputc_log))
2047 continue;
2048 /* Console output has a per-CPU "input" state. Switch for it.
2049 */
2050 ts = sc_kts[curcpu];
2051 if (ts != NULL) {
2052 oldtsw = scp->tsw;
2053 oldts = scp->ts;
2054 scp->tsw = sc_ktsw;
2055 scp->ts = ts;
2056 (*scp->tsw->te_sync)(scp);
2057 } else {
2058 /* Only 1 tsw early. Switch only its attr. */
2059 (*scp->tsw->te_default_attr)(
2060 scp, sc_kattrtab[curcpu], SC_KERNEL_CONS_REV_ATTR);
2061 }
2062 sc_puts(scp, buf, 1);
2063 if (ts != NULL) {
2064 scp->tsw = oldtsw;
2065 scp->ts = oldts;
2066 (*scp->tsw->te_sync)(scp);
2067 } else {
2068 (*scp->tsw->te_default_attr)(
2069 scp, SC_KERNEL_CONS_ATTR, SC_KERNEL_CONS_REV_ATTR);
2070 }
2071 }
2072
2073 s = spltty(); /* block sckbdevent and scrn_timer */
2074 sccnupdate(scp);
2075 splx(s);
2076 sccnclose(scp->sc, &st);
2077 }
2078
2079 static int
sc_cngetc(struct consdev * cd)2080 sc_cngetc(struct consdev *cd)
2081 {
2082 struct sc_cnstate st;
2083 int c, s;
2084
2085 /* assert(sc_console != NULL) */
2086 sccnopen(sc_console->sc, &st, 1);
2087 s = spltty(); /* block sckbdevent and scrn_timer while we poll */
2088 if (!st.kbd_opened) {
2089 splx(s);
2090 sccnclose(sc_console->sc, &st);
2091 return -1; /* means no keyboard since we fudged the locking */
2092 }
2093 c = sc_cngetc_locked(&st);
2094 splx(s);
2095 sccnclose(sc_console->sc, &st);
2096 return c;
2097 }
2098
2099 static int
sc_cngetc_locked(struct sc_cnstate * sp)2100 sc_cngetc_locked(struct sc_cnstate *sp)
2101 {
2102 static struct fkeytab fkey;
2103 static int fkeycp;
2104 scr_stat *scp;
2105 const u_char *p;
2106 int c;
2107
2108 /*
2109 * Stop the screen saver and update the screen if necessary.
2110 * What if we have been running in the screen saver code... XXX
2111 */
2112 if (sp->scr_opened)
2113 sc_touch_scrn_saver();
2114 scp = sc_console->sc->cur_scp; /* XXX */
2115 if (sp->scr_opened)
2116 sccnupdate(scp);
2117
2118 if (fkeycp < fkey.len)
2119 return fkey.str[fkeycp++];
2120
2121 c = scgetc(scp->sc, SCGETC_CN | SCGETC_NONBLOCK, sp);
2122
2123 switch (KEYFLAGS(c)) {
2124 case 0: /* normal char */
2125 return KEYCHAR(c);
2126 case FKEY: /* function key */
2127 p = (*scp->tsw->te_fkeystr)(scp, c);
2128 if (p != NULL) {
2129 fkey.len = strlen(p);
2130 bcopy(p, fkey.str, fkey.len);
2131 fkeycp = 1;
2132 return fkey.str[0];
2133 }
2134 p = kbdd_get_fkeystr(
2135 scp->sc->kbd, KEYCHAR(c), (size_t *)&fkeycp);
2136 fkey.len = fkeycp;
2137 if ((p != NULL) && (fkey.len > 0)) {
2138 bcopy(p, fkey.str, fkey.len);
2139 fkeycp = 1;
2140 return fkey.str[0];
2141 }
2142 return c; /* XXX */
2143 case NOKEY:
2144 case ERRKEY:
2145 default:
2146 return -1;
2147 }
2148 /* NOT REACHED */
2149 }
2150
2151 static void
sccnupdate(scr_stat * scp)2152 sccnupdate(scr_stat *scp)
2153 {
2154 /* this is a cut-down version of scrn_timer()... */
2155
2156 if (suspend_in_progress || scp->sc->font_loading_in_progress)
2157 return;
2158
2159 if (kdb_active || KERNEL_PANICKED() || shutdown_in_progress) {
2160 sc_touch_scrn_saver();
2161 } else if (scp != scp->sc->cur_scp) {
2162 return;
2163 }
2164
2165 if (!run_scrn_saver)
2166 scp->sc->flags &= ~SC_SCRN_IDLE;
2167 #ifdef DEV_SPLASH
2168 if ((saver_mode != CONS_LKM_SAVER) || !(scp->sc->flags & SC_SCRN_IDLE))
2169 if (scp->sc->flags & SC_SCRN_BLANKED)
2170 stop_scrn_saver(scp->sc, current_saver);
2171 #endif
2172
2173 if (scp != scp->sc->cur_scp || scp->sc->blink_in_progress ||
2174 scp->sc->switch_in_progress)
2175 return;
2176 /*
2177 * FIXME: unlike scrn_timer(), we call scrn_update() from here even
2178 * when write_in_progress is non-zero. XXX
2179 */
2180
2181 if (!ISGRAPHSC(scp) && !(scp->sc->flags & SC_SCRN_BLANKED))
2182 scrn_update(scp, TRUE);
2183 }
2184
2185 static void
scrn_timer(void * arg)2186 scrn_timer(void *arg)
2187 {
2188 static time_t kbd_time_stamp = 0;
2189 sc_softc_t *sc;
2190 scr_stat *scp;
2191 int again, rate;
2192 int kbdidx;
2193
2194 again = (arg != NULL);
2195 if (arg != NULL)
2196 sc = (sc_softc_t *)arg;
2197 else if (sc_console != NULL)
2198 sc = sc_console->sc;
2199 else
2200 return;
2201
2202 /* find the vty to update */
2203 scp = sc->cur_scp;
2204
2205 /* don't do anything when we are performing some I/O operations */
2206 if (suspend_in_progress || sc->font_loading_in_progress)
2207 goto done;
2208
2209 if ((sc->kbd == NULL) && (sc->config & SC_AUTODETECT_KBD)) {
2210 /* try to allocate a keyboard automatically */
2211 if (kbd_time_stamp != time_uptime) {
2212 kbd_time_stamp = time_uptime;
2213 kbdidx = sc_allocate_keyboard(sc, -1);
2214 if (kbdidx >= 0) {
2215 sc->kbd = kbd_get_keyboard(kbdidx);
2216 (void)kbdd_ioctl(sc->kbd, KDSKBMODE,
2217 (caddr_t)&sc->cur_scp->kbd_mode);
2218 update_kbd_state(sc->cur_scp,
2219 sc->cur_scp->status, LOCK_MASK);
2220 }
2221 }
2222 }
2223
2224 /* should we stop the screen saver? */
2225 if (kdb_active || KERNEL_PANICKED() || shutdown_in_progress)
2226 sc_touch_scrn_saver();
2227 if (run_scrn_saver) {
2228 if (time_uptime > sc->scrn_time_stamp + scrn_blank_time)
2229 sc->flags |= SC_SCRN_IDLE;
2230 else
2231 sc->flags &= ~SC_SCRN_IDLE;
2232 } else {
2233 sc->scrn_time_stamp = time_uptime;
2234 sc->flags &= ~SC_SCRN_IDLE;
2235 if (scrn_blank_time > 0)
2236 run_scrn_saver = TRUE;
2237 }
2238 #ifdef DEV_SPLASH
2239 if ((saver_mode != CONS_LKM_SAVER) || !(sc->flags & SC_SCRN_IDLE))
2240 if (sc->flags & SC_SCRN_BLANKED)
2241 stop_scrn_saver(sc, current_saver);
2242 #endif
2243
2244 /* should we just return ? */
2245 if (sc->blink_in_progress || sc->switch_in_progress ||
2246 sc->write_in_progress)
2247 goto done;
2248
2249 /* Update the screen */
2250 scp = sc->cur_scp; /* cur_scp may have changed... */
2251 if (!ISGRAPHSC(scp) && !(sc->flags & SC_SCRN_BLANKED))
2252 scrn_update(scp, TRUE);
2253
2254 #ifdef DEV_SPLASH
2255 /* should we activate the screen saver? */
2256 if ((saver_mode == CONS_LKM_SAVER) && (sc->flags & SC_SCRN_IDLE))
2257 if (!ISGRAPHSC(scp) || (sc->flags & SC_SCRN_BLANKED))
2258 (*current_saver)(sc, TRUE);
2259 #endif
2260
2261 done:
2262 if (again) {
2263 /*
2264 * Use reduced "refresh" rate if we are in graphics and that is
2265 * not a graphical screen saver. In such case we just have
2266 * nothing to do.
2267 */
2268 if (ISGRAPHSC(scp) && !(sc->flags & SC_SCRN_BLANKED))
2269 rate = 2;
2270 else
2271 rate = 30;
2272 callout_reset_sbt(
2273 &sc->ctimeout, SBT_1S / rate, 0, scrn_timer, sc, C_PREL(1));
2274 }
2275 }
2276
2277 static int
and_region(int * s1,int * e1,int s2,int e2)2278 and_region(int *s1, int *e1, int s2, int e2)
2279 {
2280 if (*e1 < s2 || e2 < *s1)
2281 return FALSE;
2282 *s1 = imax(*s1, s2);
2283 *e1 = imin(*e1, e2);
2284 return TRUE;
2285 }
2286
2287 static void
scrn_update(scr_stat * scp,int show_cursor)2288 scrn_update(scr_stat *scp, int show_cursor)
2289 {
2290 int start;
2291 int end;
2292 int s;
2293 int e;
2294
2295 /* assert(scp == scp->sc->cur_scp) */
2296
2297 SC_VIDEO_LOCK(scp->sc);
2298
2299 #ifndef SC_NO_CUTPASTE
2300 /* remove the previous mouse pointer image if necessary */
2301 if (scp->status & MOUSE_VISIBLE) {
2302 s = scp->mouse_pos;
2303 e = scp->mouse_pos + scp->xsize + 1;
2304 if ((scp->status & (MOUSE_MOVED | MOUSE_HIDDEN)) ||
2305 and_region(&s, &e, scp->start, scp->end) ||
2306 ((scp->status & CURSOR_ENABLED) &&
2307 (scp->cursor_pos != scp->cursor_oldpos) &&
2308 (and_region(&s, &e, scp->cursor_pos, scp->cursor_pos) ||
2309 and_region(&s, &e, scp->cursor_oldpos,
2310 scp->cursor_oldpos)))) {
2311 sc_remove_mouse_image(scp);
2312 if (scp->end >= scp->xsize * scp->ysize)
2313 scp->end = scp->xsize * scp->ysize - 1;
2314 }
2315 }
2316 #endif /* !SC_NO_CUTPASTE */
2317
2318 #if 1
2319 /* debug: XXX */
2320 if (scp->end >= scp->xsize * scp->ysize) {
2321 printf("scrn_update(): scp->end %d > size_of_screen!!\n",
2322 scp->end);
2323 scp->end = scp->xsize * scp->ysize - 1;
2324 }
2325 if (scp->start < 0) {
2326 printf("scrn_update(): scp->start %d < 0\n", scp->start);
2327 scp->start = 0;
2328 }
2329 #endif
2330
2331 /* update screen image */
2332 if (scp->start <= scp->end) {
2333 if (scp->mouse_cut_end >= 0) {
2334 /* there is a marked region for cut & paste */
2335 if (scp->mouse_cut_start <= scp->mouse_cut_end) {
2336 start = scp->mouse_cut_start;
2337 end = scp->mouse_cut_end;
2338 } else {
2339 start = scp->mouse_cut_end;
2340 end = scp->mouse_cut_start - 1;
2341 }
2342 s = start;
2343 e = end;
2344 /* does the cut-mark region overlap with the update
2345 * region? */
2346 if (and_region(&s, &e, scp->start, scp->end)) {
2347 (*scp->rndr->draw)(scp, s, e - s + 1, TRUE);
2348 s = 0;
2349 e = start - 1;
2350 if (and_region(&s, &e, scp->start, scp->end))
2351 (*scp->rndr->draw)(
2352 scp, s, e - s + 1, FALSE);
2353 s = end + 1;
2354 e = scp->xsize * scp->ysize - 1;
2355 if (and_region(&s, &e, scp->start, scp->end))
2356 (*scp->rndr->draw)(
2357 scp, s, e - s + 1, FALSE);
2358 } else {
2359 (*scp->rndr->draw)(scp, scp->start,
2360 scp->end - scp->start + 1, FALSE);
2361 }
2362 } else {
2363 (*scp->rndr->draw)(
2364 scp, scp->start, scp->end - scp->start + 1, FALSE);
2365 }
2366 }
2367
2368 /* we are not to show the cursor and the mouse pointer... */
2369 if (!show_cursor) {
2370 scp->end = 0;
2371 scp->start = scp->xsize * scp->ysize - 1;
2372 SC_VIDEO_UNLOCK(scp->sc);
2373 return;
2374 }
2375
2376 /* update cursor image */
2377 if (scp->status & CURSOR_ENABLED) {
2378 s = scp->start;
2379 e = scp->end;
2380 /* did cursor move since last time ? */
2381 if (scp->cursor_pos != scp->cursor_oldpos) {
2382 /* do we need to remove old cursor image ? */
2383 if (!and_region(
2384 &s, &e, scp->cursor_oldpos, scp->cursor_oldpos))
2385 sc_remove_cursor_image(scp);
2386 sc_draw_cursor_image(scp);
2387 } else {
2388 if (and_region(
2389 &s, &e, scp->cursor_pos, scp->cursor_pos))
2390 /* cursor didn't move, but has been overwritten
2391 */
2392 sc_draw_cursor_image(scp);
2393 else if (scp->curs_attr.flags & CONS_BLINK_CURSOR)
2394 /* if it's a blinking cursor, update it */
2395 (*scp->rndr->blink_cursor)(scp, scp->cursor_pos,
2396 sc_inside_cutmark(scp, scp->cursor_pos));
2397 }
2398 }
2399
2400 #ifndef SC_NO_CUTPASTE
2401 /* update "pseudo" mouse pointer image */
2402 if (scp->sc->flags & SC_MOUSE_ENABLED) {
2403 if (!(scp->status & (MOUSE_VISIBLE | MOUSE_HIDDEN))) {
2404 scp->status &= ~MOUSE_MOVED;
2405 sc_draw_mouse_image(scp);
2406 }
2407 }
2408 #endif /* SC_NO_CUTPASTE */
2409
2410 scp->end = 0;
2411 scp->start = scp->xsize * scp->ysize - 1;
2412
2413 SC_VIDEO_UNLOCK(scp->sc);
2414 }
2415
2416 #ifdef DEV_SPLASH
2417 static int
scsplash_callback(int event,void * arg)2418 scsplash_callback(int event, void *arg)
2419 {
2420 sc_softc_t *sc;
2421 int error;
2422
2423 sc = (sc_softc_t *)arg;
2424
2425 switch (event) {
2426 case SPLASH_INIT:
2427 if (add_scrn_saver(scsplash_saver) == 0) {
2428 sc->flags &= ~SC_SAVER_FAILED;
2429 run_scrn_saver = TRUE;
2430 if (cold && !(boothowto & RB_VERBOSE)) {
2431 scsplash_stick(TRUE);
2432 (*current_saver)(sc, TRUE);
2433 }
2434 }
2435 return 0;
2436
2437 case SPLASH_TERM:
2438 if (current_saver == scsplash_saver) {
2439 scsplash_stick(FALSE);
2440 error = remove_scrn_saver(scsplash_saver);
2441 if (error)
2442 return error;
2443 }
2444 return 0;
2445
2446 default:
2447 return EINVAL;
2448 }
2449 }
2450
2451 static void
scsplash_saver(sc_softc_t * sc,int show)2452 scsplash_saver(sc_softc_t *sc, int show)
2453 {
2454 static int busy = FALSE;
2455 scr_stat *scp;
2456
2457 if (busy)
2458 return;
2459 busy = TRUE;
2460
2461 scp = sc->cur_scp;
2462 if (show) {
2463 if (!(sc->flags & SC_SAVER_FAILED)) {
2464 if (!(sc->flags & SC_SCRN_BLANKED))
2465 set_scrn_saver_mode(scp, -1, NULL, 0);
2466 switch (splash(sc->adp, TRUE)) {
2467 case 0: /* succeeded */
2468 break;
2469 case EAGAIN: /* try later */
2470 restore_scrn_saver_mode(scp, FALSE);
2471 sc_touch_scrn_saver(); /* XXX */
2472 break;
2473 default:
2474 sc->flags |= SC_SAVER_FAILED;
2475 scsplash_stick(FALSE);
2476 restore_scrn_saver_mode(scp, TRUE);
2477 printf(
2478 "scsplash_saver(): failed to put up the image\n");
2479 break;
2480 }
2481 }
2482 } else if (!sticky_splash) {
2483 if ((sc->flags & SC_SCRN_BLANKED) &&
2484 (splash(sc->adp, FALSE) == 0))
2485 restore_scrn_saver_mode(scp, TRUE);
2486 }
2487 busy = FALSE;
2488 }
2489
2490 static int
add_scrn_saver(void (* this_saver)(sc_softc_t *,int))2491 add_scrn_saver(void (*this_saver)(sc_softc_t *, int))
2492 {
2493 #if 0
2494 int error;
2495
2496 if (current_saver != none_saver) {
2497 error = remove_scrn_saver(current_saver);
2498 if (error)
2499 return error;
2500 }
2501 #endif
2502 if (current_saver != none_saver)
2503 return EBUSY;
2504
2505 run_scrn_saver = FALSE;
2506 saver_mode = CONS_LKM_SAVER;
2507 current_saver = this_saver;
2508 return 0;
2509 }
2510
2511 static int
remove_scrn_saver(void (* this_saver)(sc_softc_t *,int))2512 remove_scrn_saver(void (*this_saver)(sc_softc_t *, int))
2513 {
2514 if (current_saver != this_saver)
2515 return EINVAL;
2516
2517 #if 0
2518 /*
2519 * In order to prevent `current_saver' from being called by
2520 * the timeout routine `scrn_timer()' while we manipulate
2521 * the saver list, we shall set `current_saver' to `none_saver'
2522 * before stopping the current saver, rather than blocking by `splXX()'.
2523 */
2524 current_saver = none_saver;
2525 if (scrn_blanked)
2526 stop_scrn_saver(this_saver);
2527 #endif
2528
2529 /* unblank all blanked screens */
2530 wait_scrn_saver_stop(NULL);
2531 if (scrn_blanked)
2532 return EBUSY;
2533
2534 current_saver = none_saver;
2535 return 0;
2536 }
2537
2538 static int
set_scrn_saver_mode(scr_stat * scp,int mode,u_char * pal,int border)2539 set_scrn_saver_mode(scr_stat *scp, int mode, u_char *pal, int border)
2540 {
2541 int s;
2542
2543 /* assert(scp == scp->sc->cur_scp) */
2544 s = spltty();
2545 if (!ISGRAPHSC(scp))
2546 sc_remove_cursor_image(scp);
2547 scp->splash_save_mode = scp->mode;
2548 scp->splash_save_status = scp->status & (GRAPHICS_MODE | PIXEL_MODE);
2549 scp->status &= ~(GRAPHICS_MODE | PIXEL_MODE);
2550 scp->status |= (UNKNOWN_MODE | SAVER_RUNNING);
2551 scp->sc->flags |= SC_SCRN_BLANKED;
2552 ++scrn_blanked;
2553 splx(s);
2554 if (mode < 0)
2555 return 0;
2556 scp->mode = mode;
2557 if (set_mode(scp) == 0) {
2558 if (scp->sc->adp->va_info.vi_flags & V_INFO_GRAPHICS)
2559 scp->status |= GRAPHICS_MODE;
2560 #ifndef SC_NO_PALETTE_LOADING
2561 if (pal != NULL)
2562 vidd_load_palette(scp->sc->adp, pal);
2563 #endif
2564 sc_set_border(scp, border);
2565 return 0;
2566 } else {
2567 s = spltty();
2568 scp->mode = scp->splash_save_mode;
2569 scp->status &= ~(UNKNOWN_MODE | SAVER_RUNNING);
2570 scp->status |= scp->splash_save_status;
2571 splx(s);
2572 return 1;
2573 }
2574 }
2575
2576 static int
restore_scrn_saver_mode(scr_stat * scp,int changemode)2577 restore_scrn_saver_mode(scr_stat *scp, int changemode)
2578 {
2579 int mode;
2580 int status;
2581 int s;
2582
2583 /* assert(scp == scp->sc->cur_scp) */
2584 s = spltty();
2585 mode = scp->mode;
2586 status = scp->status;
2587 scp->mode = scp->splash_save_mode;
2588 scp->status &= ~(UNKNOWN_MODE | SAVER_RUNNING);
2589 scp->status |= scp->splash_save_status;
2590 scp->sc->flags &= ~SC_SCRN_BLANKED;
2591 if (!changemode) {
2592 if (!ISGRAPHSC(scp))
2593 sc_draw_cursor_image(scp);
2594 --scrn_blanked;
2595 splx(s);
2596 return 0;
2597 }
2598 if (set_mode(scp) == 0) {
2599 #ifndef SC_NO_PALETTE_LOADING
2600 #ifdef SC_PIXEL_MODE
2601 if (scp->sc->adp->va_info.vi_mem_model == V_INFO_MM_DIRECT)
2602 vidd_load_palette(scp->sc->adp, scp->sc->palette2);
2603 else
2604 #endif
2605 vidd_load_palette(scp->sc->adp, scp->sc->palette);
2606 #endif
2607 --scrn_blanked;
2608 splx(s);
2609 return 0;
2610 } else {
2611 scp->mode = mode;
2612 scp->status = status;
2613 splx(s);
2614 return 1;
2615 }
2616 }
2617
2618 static void
stop_scrn_saver(sc_softc_t * sc,void (* saver)(sc_softc_t *,int))2619 stop_scrn_saver(sc_softc_t *sc, void (*saver)(sc_softc_t *, int))
2620 {
2621 (*saver)(sc, FALSE);
2622 run_scrn_saver = FALSE;
2623 /* the screen saver may have chosen not to stop after all... */
2624 if (sc->flags & SC_SCRN_BLANKED)
2625 return;
2626
2627 mark_all(sc->cur_scp);
2628 if (sc->delayed_next_scr)
2629 sc_switch_scr(sc, sc->delayed_next_scr - 1);
2630 if (!kdb_active)
2631 wakeup(&scrn_blanked);
2632 }
2633
2634 static int
wait_scrn_saver_stop(sc_softc_t * sc)2635 wait_scrn_saver_stop(sc_softc_t *sc)
2636 {
2637 int error = 0;
2638
2639 while (scrn_blanked > 0) {
2640 run_scrn_saver = FALSE;
2641 if (sc && !(sc->flags & SC_SCRN_BLANKED)) {
2642 error = 0;
2643 break;
2644 }
2645 error = tsleep(&scrn_blanked, PZERO | PCATCH, "scrsav", 0);
2646 if ((error != 0) && (error != ERESTART))
2647 break;
2648 }
2649 run_scrn_saver = FALSE;
2650 return error;
2651 }
2652 #endif /* DEV_SPLASH */
2653
2654 void
sc_touch_scrn_saver(void)2655 sc_touch_scrn_saver(void)
2656 {
2657 scsplash_stick(FALSE);
2658 run_scrn_saver = FALSE;
2659 }
2660
2661 int
sc_switch_scr(sc_softc_t * sc,u_int next_scr)2662 sc_switch_scr(sc_softc_t *sc, u_int next_scr)
2663 {
2664 scr_stat *cur_scp;
2665 struct tty *tp;
2666 struct proc *p;
2667 int s;
2668
2669 DPRINTF(5, ("sc0: sc_switch_scr() %d ", next_scr + 1));
2670
2671 if (sc->cur_scp == NULL)
2672 return (0);
2673
2674 /* prevent switch if previously requested */
2675 if (sc->flags & SC_SCRN_VTYLOCK) {
2676 sc_bell(sc->cur_scp, sc->cur_scp->bell_pitch,
2677 sc->cur_scp->bell_duration);
2678 return EPERM;
2679 }
2680
2681 /* delay switch if the screen is blanked or being updated */
2682 if ((sc->flags & SC_SCRN_BLANKED) || sc->write_in_progress ||
2683 sc->blink_in_progress) {
2684 sc->delayed_next_scr = next_scr + 1;
2685 sc_touch_scrn_saver();
2686 DPRINTF(5, ("switch delayed\n"));
2687 return 0;
2688 }
2689 sc->delayed_next_scr = 0;
2690
2691 s = spltty();
2692 cur_scp = sc->cur_scp;
2693
2694 /* we are in the middle of the vty switching process... */
2695 if (sc->switch_in_progress && (cur_scp->smode.mode == VT_PROCESS) &&
2696 cur_scp->proc) {
2697 p = pfind(cur_scp->pid);
2698 if (cur_scp->proc != p) {
2699 if (p)
2700 PROC_UNLOCK(p);
2701 /*
2702 * The controlling process has died!!. Do some clean
2703 * up. NOTE:`cur_scp->proc' and `cur_scp->smode.mode'
2704 * are not reset here yet; they will be cleared later.
2705 */
2706 DPRINTF(5,
2707 ("cur_scp controlling process %d died, ",
2708 cur_scp->pid));
2709 if (cur_scp->status & SWITCH_WAIT_REL) {
2710 /*
2711 * Force the previous switch to finish, but
2712 * return now with error.
2713 */
2714 DPRINTF(5, ("reset WAIT_REL, "));
2715 finish_vt_rel(cur_scp, TRUE, &s);
2716 splx(s);
2717 DPRINTF(5, ("finishing previous switch\n"));
2718 return EINVAL;
2719 } else if (cur_scp->status & SWITCH_WAIT_ACQ) {
2720 /* let's assume screen switch has been
2721 * completed. */
2722 DPRINTF(5, ("reset WAIT_ACQ, "));
2723 finish_vt_acq(cur_scp);
2724 } else {
2725 /*
2726 * We are in between screen release and
2727 * acquisition, and reached here via scgetc() or
2728 * scrn_timer() which has interrupted
2729 * exchange_scr(). Don't do anything stupid.
2730 */
2731 DPRINTF(5, ("waiting nothing, "));
2732 }
2733 } else {
2734 if (p)
2735 PROC_UNLOCK(p);
2736 /*
2737 * The controlling process is alive, but not
2738 * responding... It is either buggy or it may be just
2739 * taking time. The following code is a gross kludge to
2740 * cope with this problem for which there is no clean
2741 * solution. XXX
2742 */
2743 if (cur_scp->status & SWITCH_WAIT_REL) {
2744 switch (sc->switch_in_progress++) {
2745 case 1:
2746 break;
2747 case 2:
2748 DPRINTF(5, ("sending relsig again, "));
2749 signal_vt_rel(cur_scp);
2750 break;
2751 case 3:
2752 break;
2753 case 4:
2754 default:
2755 /*
2756 * Act as if the controlling program
2757 * returned VT_FALSE.
2758 */
2759 DPRINTF(5, ("force reset WAIT_REL, "));
2760 finish_vt_rel(cur_scp, FALSE, &s);
2761 splx(s);
2762 DPRINTF(5,
2763 ("act as if VT_FALSE was seen\n"));
2764 return EINVAL;
2765 }
2766 } else if (cur_scp->status & SWITCH_WAIT_ACQ) {
2767 switch (sc->switch_in_progress++) {
2768 case 1:
2769 break;
2770 case 2:
2771 DPRINTF(5, ("sending acqsig again, "));
2772 signal_vt_acq(cur_scp);
2773 break;
2774 case 3:
2775 break;
2776 case 4:
2777 default:
2778 /* clear the flag and finish the
2779 * previous switch */
2780 DPRINTF(5, ("force reset WAIT_ACQ, "));
2781 finish_vt_acq(cur_scp);
2782 break;
2783 }
2784 }
2785 }
2786 }
2787
2788 /*
2789 * Return error if an invalid argument is given, or vty switch
2790 * is still in progress.
2791 */
2792 if ((next_scr < sc->first_vty) ||
2793 (next_scr >= sc->first_vty + sc->vtys) || sc->switch_in_progress) {
2794 splx(s);
2795 sc_bell(cur_scp, bios_value.bell_pitch, BELL_DURATION);
2796 DPRINTF(5, ("error 1\n"));
2797 return EINVAL;
2798 }
2799
2800 /*
2801 * Don't allow switching away from the graphics mode vty
2802 * if the switch mode is VT_AUTO, unless the next vty is the same
2803 * as the current or the current vty has been closed (but showing).
2804 */
2805 tp = SC_DEV(sc, cur_scp->index);
2806 if ((cur_scp->index != next_scr) && tty_opened_ns(tp) &&
2807 (cur_scp->smode.mode == VT_AUTO) && ISGRAPHSC(cur_scp)) {
2808 splx(s);
2809 sc_bell(cur_scp, bios_value.bell_pitch, BELL_DURATION);
2810 DPRINTF(5, ("error, graphics mode\n"));
2811 return EINVAL;
2812 }
2813
2814 /*
2815 * Is the wanted vty open? Don't allow switching to a closed vty.
2816 * If we are in DDB, don't switch to a vty in the VT_PROCESS mode.
2817 * Note that we always allow the user to switch to the kernel
2818 * console even if it is closed.
2819 */
2820 if ((sc_console == NULL) || (next_scr != sc_console->index)) {
2821 tp = SC_DEV(sc, next_scr);
2822 if (!tty_opened_ns(tp)) {
2823 splx(s);
2824 sc_bell(cur_scp, bios_value.bell_pitch, BELL_DURATION);
2825 DPRINTF(5, ("error 2, requested vty isn't open!\n"));
2826 return EINVAL;
2827 }
2828 if (kdb_active && SC_STAT(tp)->smode.mode == VT_PROCESS) {
2829 splx(s);
2830 DPRINTF(5,
2831 ("error 3, requested vty is in the VT_PROCESS mode\n"));
2832 return EINVAL;
2833 }
2834 }
2835
2836 /* this is the start of vty switching process... */
2837 ++sc->switch_in_progress;
2838 sc->old_scp = cur_scp;
2839 sc->new_scp = sc_get_stat(SC_DEV(sc, next_scr));
2840 if (sc->new_scp == sc->old_scp) {
2841 sc->switch_in_progress = 0;
2842 /*
2843 * XXX wakeup() locks the scheduler lock which will hang if
2844 * the lock is in an in-between state, e.g., when we stop at
2845 * a breakpoint at fork_exit. It has always been wrong to call
2846 * wakeup() when the debugger is active. In RELENG_4, wakeup()
2847 * is supposed to be locked by splhigh(), but the debugger may
2848 * be invoked at splhigh().
2849 */
2850 if (!kdb_active)
2851 wakeup(VTY_WCHAN(sc, next_scr));
2852 splx(s);
2853 DPRINTF(5, ("switch done (new == old)\n"));
2854 return 0;
2855 }
2856
2857 /* has controlling process died? */
2858 vt_proc_alive(sc->old_scp);
2859 vt_proc_alive(sc->new_scp);
2860
2861 /* wait for the controlling process to release the screen, if necessary
2862 */
2863 if (signal_vt_rel(sc->old_scp)) {
2864 splx(s);
2865 return 0;
2866 }
2867
2868 /* go set up the new vty screen */
2869 splx(s);
2870 exchange_scr(sc);
2871 s = spltty();
2872
2873 /* wake up processes waiting for this vty */
2874 if (!kdb_active)
2875 wakeup(VTY_WCHAN(sc, next_scr));
2876
2877 /* wait for the controlling process to acknowledge, if necessary */
2878 if (signal_vt_acq(sc->cur_scp)) {
2879 splx(s);
2880 return 0;
2881 }
2882
2883 sc->switch_in_progress = 0;
2884 if (sc->unit == sc_console_unit)
2885 cnavailable(sc_consptr, TRUE);
2886 splx(s);
2887 DPRINTF(5, ("switch done\n"));
2888
2889 return 0;
2890 }
2891
2892 static int
do_switch_scr(sc_softc_t * sc,int s)2893 do_switch_scr(sc_softc_t *sc, int s)
2894 {
2895 vt_proc_alive(sc->new_scp);
2896
2897 splx(s);
2898 exchange_scr(sc);
2899 s = spltty();
2900 /* sc->cur_scp == sc->new_scp */
2901 wakeup(VTY_WCHAN(sc, sc->cur_scp->index));
2902
2903 /* wait for the controlling process to acknowledge, if necessary */
2904 if (!signal_vt_acq(sc->cur_scp)) {
2905 sc->switch_in_progress = 0;
2906 if (sc->unit == sc_console_unit)
2907 cnavailable(sc_consptr, TRUE);
2908 }
2909
2910 return s;
2911 }
2912
2913 static int
vt_proc_alive(scr_stat * scp)2914 vt_proc_alive(scr_stat *scp)
2915 {
2916 struct proc *p;
2917
2918 if (scp->proc) {
2919 if ((p = pfind(scp->pid)) != NULL)
2920 PROC_UNLOCK(p);
2921 if (scp->proc == p)
2922 return TRUE;
2923 scp->proc = NULL;
2924 scp->smode.mode = VT_AUTO;
2925 DPRINTF(5, ("vt controlling process %d died\n", scp->pid));
2926 }
2927 return FALSE;
2928 }
2929
2930 static int
signal_vt_rel(scr_stat * scp)2931 signal_vt_rel(scr_stat *scp)
2932 {
2933 if (scp->smode.mode != VT_PROCESS)
2934 return FALSE;
2935 scp->status |= SWITCH_WAIT_REL;
2936 PROC_LOCK(scp->proc);
2937 kern_psignal(scp->proc, scp->smode.relsig);
2938 PROC_UNLOCK(scp->proc);
2939 DPRINTF(5, ("sending relsig to %d\n", scp->pid));
2940 return TRUE;
2941 }
2942
2943 static int
signal_vt_acq(scr_stat * scp)2944 signal_vt_acq(scr_stat *scp)
2945 {
2946 if (scp->smode.mode != VT_PROCESS)
2947 return FALSE;
2948 if (scp->sc->unit == sc_console_unit)
2949 cnavailable(sc_consptr, FALSE);
2950 scp->status |= SWITCH_WAIT_ACQ;
2951 PROC_LOCK(scp->proc);
2952 kern_psignal(scp->proc, scp->smode.acqsig);
2953 PROC_UNLOCK(scp->proc);
2954 DPRINTF(5, ("sending acqsig to %d\n", scp->pid));
2955 return TRUE;
2956 }
2957
2958 static int
finish_vt_rel(scr_stat * scp,int release,int * s)2959 finish_vt_rel(scr_stat *scp, int release, int *s)
2960 {
2961 if (scp == scp->sc->old_scp && scp->status & SWITCH_WAIT_REL) {
2962 scp->status &= ~SWITCH_WAIT_REL;
2963 if (release)
2964 *s = do_switch_scr(scp->sc, *s);
2965 else
2966 scp->sc->switch_in_progress = 0;
2967 return 0;
2968 }
2969 return EINVAL;
2970 }
2971
2972 static int
finish_vt_acq(scr_stat * scp)2973 finish_vt_acq(scr_stat *scp)
2974 {
2975 if (scp == scp->sc->new_scp && scp->status & SWITCH_WAIT_ACQ) {
2976 scp->status &= ~SWITCH_WAIT_ACQ;
2977 scp->sc->switch_in_progress = 0;
2978 return 0;
2979 }
2980 return EINVAL;
2981 }
2982
2983 static void
exchange_scr(sc_softc_t * sc)2984 exchange_scr(sc_softc_t *sc)
2985 {
2986 scr_stat *scp;
2987
2988 /* save the current state of video and keyboard */
2989 sc_move_cursor(sc->old_scp, sc->old_scp->xpos, sc->old_scp->ypos);
2990 if (!ISGRAPHSC(sc->old_scp))
2991 sc_remove_cursor_image(sc->old_scp);
2992 if (sc->old_scp->kbd_mode == K_XLATE)
2993 save_kbd_state(sc->old_scp);
2994
2995 /* set up the video for the new screen */
2996 scp = sc->cur_scp = sc->new_scp;
2997 if (sc->old_scp->mode != scp->mode || ISUNKNOWNSC(sc->old_scp))
2998 set_mode(scp);
2999 else
3000 sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, scp->xsize, scp->ysize,
3001 (void *)sc->adp->va_window, FALSE);
3002 scp->status |= MOUSE_HIDDEN;
3003 sc_move_cursor(scp, scp->xpos, scp->ypos);
3004 if (!ISGRAPHSC(scp))
3005 sc_set_cursor_image(scp);
3006 #ifndef SC_NO_PALETTE_LOADING
3007 if (ISGRAPHSC(sc->old_scp)) {
3008 #ifdef SC_PIXEL_MODE
3009 if (sc->adp->va_info.vi_mem_model == V_INFO_MM_DIRECT)
3010 vidd_load_palette(sc->adp, sc->palette2);
3011 else
3012 #endif
3013 vidd_load_palette(sc->adp, sc->palette);
3014 }
3015 #endif
3016 sc_set_border(scp, scp->border);
3017
3018 /* set up the keyboard for the new screen */
3019 if (sc->kbd_open_level == 0 && sc->old_scp->kbd_mode != scp->kbd_mode)
3020 (void)kbdd_ioctl(sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode);
3021 update_kbd_state(scp, scp->status, LOCK_MASK);
3022
3023 mark_all(scp);
3024 }
3025
3026 static void
sc_puts(scr_stat * scp,u_char * buf,int len)3027 sc_puts(scr_stat *scp, u_char *buf, int len)
3028 {
3029 #ifdef DEV_SPLASH
3030 /* make screensaver happy */
3031 if (!sticky_splash && scp == scp->sc->cur_scp && !sc_saver_keyb_only)
3032 run_scrn_saver = FALSE;
3033 #endif
3034
3035 if (scp->tsw)
3036 (*scp->tsw->te_puts)(scp, buf, len);
3037 if (scp->sc->delayed_next_scr)
3038 sc_switch_scr(scp->sc, scp->sc->delayed_next_scr - 1);
3039 }
3040
3041 void
sc_draw_cursor_image(scr_stat * scp)3042 sc_draw_cursor_image(scr_stat *scp)
3043 {
3044 /* assert(scp == scp->sc->cur_scp); */
3045 SC_VIDEO_LOCK(scp->sc);
3046 (*scp->rndr->draw_cursor)(scp, scp->cursor_pos,
3047 scp->curs_attr.flags & CONS_BLINK_CURSOR, TRUE,
3048 sc_inside_cutmark(scp, scp->cursor_pos));
3049 scp->cursor_oldpos = scp->cursor_pos;
3050 SC_VIDEO_UNLOCK(scp->sc);
3051 }
3052
3053 void
sc_remove_cursor_image(scr_stat * scp)3054 sc_remove_cursor_image(scr_stat *scp)
3055 {
3056 /* assert(scp == scp->sc->cur_scp); */
3057 SC_VIDEO_LOCK(scp->sc);
3058 (*scp->rndr->draw_cursor)(scp, scp->cursor_oldpos,
3059 scp->curs_attr.flags & CONS_BLINK_CURSOR, FALSE,
3060 sc_inside_cutmark(scp, scp->cursor_oldpos));
3061 SC_VIDEO_UNLOCK(scp->sc);
3062 }
3063
3064 static void
update_cursor_image(scr_stat * scp)3065 update_cursor_image(scr_stat *scp)
3066 {
3067 /* assert(scp == scp->sc->cur_scp); */
3068 sc_remove_cursor_image(scp);
3069 sc_set_cursor_image(scp);
3070 sc_draw_cursor_image(scp);
3071 }
3072
3073 void
sc_set_cursor_image(scr_stat * scp)3074 sc_set_cursor_image(scr_stat *scp)
3075 {
3076 scp->curs_attr = scp->base_curs_attr;
3077 if (scp->curs_attr.flags & CONS_HIDDEN_CURSOR) {
3078 /* hidden cursor is internally represented as zero-height
3079 * underline */
3080 scp->curs_attr.flags = CONS_CHAR_CURSOR;
3081 scp->curs_attr.base = scp->curs_attr.height = 0;
3082 } else if (scp->curs_attr.flags & CONS_CHAR_CURSOR) {
3083 scp->curs_attr.base =
3084 imin(scp->base_curs_attr.base, scp->font_size - 1);
3085 scp->curs_attr.height = imin(scp->base_curs_attr.height,
3086 scp->font_size - scp->curs_attr.base);
3087 } else { /* block cursor */
3088 scp->curs_attr.base = 0;
3089 scp->curs_attr.height = scp->font_size;
3090 }
3091
3092 /* assert(scp == scp->sc->cur_scp); */
3093 SC_VIDEO_LOCK(scp->sc);
3094 (*scp->rndr->set_cursor)(scp, scp->curs_attr.base,
3095 scp->curs_attr.height, scp->curs_attr.flags & CONS_BLINK_CURSOR);
3096 SC_VIDEO_UNLOCK(scp->sc);
3097 }
3098
3099 static void
sc_adjust_ca(struct cursor_attr * cap,int flags,int base,int height)3100 sc_adjust_ca(struct cursor_attr *cap, int flags, int base, int height)
3101 {
3102 if (flags & CONS_CHARCURSOR_COLORS) {
3103 cap->bg[0] = base & 0xff;
3104 cap->bg[1] = height & 0xff;
3105 } else if (flags & CONS_MOUSECURSOR_COLORS) {
3106 cap->mouse_ba = base & 0xff;
3107 cap->mouse_ia = height & 0xff;
3108 } else {
3109 if (base >= 0)
3110 cap->base = base;
3111 if (height >= 0)
3112 cap->height = height;
3113 if (!(flags & CONS_SHAPEONLY_CURSOR))
3114 cap->flags = flags & CONS_CURSOR_ATTRS;
3115 }
3116 }
3117
3118 static void
change_cursor_shape(scr_stat * scp,int flags,int base,int height)3119 change_cursor_shape(scr_stat *scp, int flags, int base, int height)
3120 {
3121 if ((scp == scp->sc->cur_scp) && !ISGRAPHSC(scp))
3122 sc_remove_cursor_image(scp);
3123
3124 if (flags & CONS_RESET_CURSOR)
3125 scp->base_curs_attr = scp->dflt_curs_attr;
3126 else if (flags & CONS_DEFAULT_CURSOR) {
3127 sc_adjust_ca(&scp->dflt_curs_attr, flags, base, height);
3128 scp->base_curs_attr = scp->dflt_curs_attr;
3129 } else
3130 sc_adjust_ca(&scp->base_curs_attr, flags, base, height);
3131
3132 if ((scp == scp->sc->cur_scp) && !ISGRAPHSC(scp)) {
3133 sc_set_cursor_image(scp);
3134 sc_draw_cursor_image(scp);
3135 }
3136 }
3137
3138 void
sc_change_cursor_shape(scr_stat * scp,int flags,int base,int height)3139 sc_change_cursor_shape(scr_stat *scp, int flags, int base, int height)
3140 {
3141 sc_softc_t *sc;
3142 struct tty *tp;
3143 int s;
3144 int i;
3145
3146 if (flags == -1)
3147 flags = CONS_SHAPEONLY_CURSOR;
3148
3149 s = spltty();
3150 if (flags & CONS_LOCAL_CURSOR) {
3151 /* local (per vty) change */
3152 change_cursor_shape(scp, flags, base, height);
3153 splx(s);
3154 return;
3155 }
3156
3157 /* global change */
3158 sc = scp->sc;
3159 if (flags & CONS_RESET_CURSOR)
3160 sc->curs_attr = sc->dflt_curs_attr;
3161 else if (flags & CONS_DEFAULT_CURSOR) {
3162 sc_adjust_ca(&sc->dflt_curs_attr, flags, base, height);
3163 sc->curs_attr = sc->dflt_curs_attr;
3164 } else
3165 sc_adjust_ca(&sc->curs_attr, flags, base, height);
3166
3167 for (i = sc->first_vty; i < sc->first_vty + sc->vtys; ++i) {
3168 if ((tp = SC_DEV(sc, i)) == NULL)
3169 continue;
3170 if ((scp = sc_get_stat(tp)) == NULL)
3171 continue;
3172 scp->dflt_curs_attr = sc->curs_attr;
3173 change_cursor_shape(scp, CONS_RESET_CURSOR, -1, -1);
3174 }
3175 splx(s);
3176 }
3177
3178 static void
scinit(int unit,int flags)3179 scinit(int unit, int flags)
3180 {
3181
3182 /*
3183 * When syscons is being initialized as the kernel console, malloc()
3184 * is not yet functional, because various kernel structures has not been
3185 * fully initialized yet. Therefore, we need to declare the following
3186 * static buffers for the console. This is less than ideal,
3187 * but is necessry evil for the time being. XXX
3188 */
3189 static u_short sc_buffer[ROW * COL]; /* XXX */
3190 #ifndef SC_NO_FONT_LOADING
3191 static u_char font_8[256 * 8];
3192 static u_char font_14[256 * 14];
3193 static u_char font_16[256 * 16];
3194 #endif
3195
3196 #ifdef SC_KERNEL_CONS_ATTRS
3197 static const u_char dflt_kattrtab[] = SC_KERNEL_CONS_ATTRS;
3198 #elif SC_KERNEL_CONS_ATTR == FG_WHITE
3199 static const u_char dflt_kattrtab[] = {
3200 FG_WHITE,
3201 FG_YELLOW,
3202 FG_LIGHTMAGENTA,
3203 FG_LIGHTRED,
3204 FG_LIGHTCYAN,
3205 FG_LIGHTGREEN,
3206 FG_LIGHTBLUE,
3207 FG_GREEN,
3208 0,
3209 };
3210 #else
3211 static const u_char dflt_kattrtab[] = {
3212 FG_WHITE,
3213 0,
3214 };
3215 #endif
3216 sc_softc_t *sc;
3217 scr_stat *scp;
3218 video_adapter_t *adp;
3219 int col;
3220 int kbdidx;
3221 int row;
3222 int i;
3223
3224 /* one time initialization */
3225 if (init_done == COLD) {
3226 sc_get_bios_values(&bios_value);
3227 for (i = 0; i < nitems(sc_kattrtab); i++)
3228 sc_kattrtab[i] =
3229 dflt_kattrtab[i % (nitems(dflt_kattrtab) - 1)];
3230 }
3231 init_done = WARM;
3232
3233 /*
3234 * Allocate resources. Even if we are being called for the second
3235 * time, we must allocate them again, because they might have
3236 * disappeared...
3237 */
3238 sc = sc_get_softc(unit, flags & SC_KERNEL_CONSOLE);
3239 if ((sc->flags & SC_INIT_DONE) == 0)
3240 SC_VIDEO_LOCKINIT(sc);
3241
3242 adp = NULL;
3243 if (sc->adapter >= 0) {
3244 vid_release(sc->adp, (void *)&sc->adapter);
3245 adp = sc->adp;
3246 sc->adp = NULL;
3247 }
3248 if (sc->kbd != NULL) {
3249 DPRINTF(5, ("sc%d: releasing kbd%d\n", unit,
3250 sc->kbd->kb_index));
3251 i = kbd_release(sc->kbd, (void *)&sc->kbd);
3252 DPRINTF(5, ("sc%d: kbd_release returned %d\n", unit, i));
3253 if (sc->kbd != NULL) {
3254 DPRINTF(5,
3255 ("sc%d: kbd != NULL!, index:%d, unit:%d, flags:0x%x\n",
3256 unit, sc->kbd->kb_index, sc->kbd->kb_unit,
3257 sc->kbd->kb_flags));
3258 }
3259 sc->kbd = NULL;
3260 }
3261 sc->adapter = vid_allocate("*", unit, (void *)&sc->adapter);
3262 sc->adp = vid_get_adapter(sc->adapter);
3263 /* assert((sc->adapter >= 0) && (sc->adp != NULL)) */
3264
3265 kbdidx = sc_allocate_keyboard(sc, unit);
3266 DPRINTF(1, ("sc%d: keyboard %d\n", unit, kbdidx));
3267
3268 sc->kbd = kbd_get_keyboard(kbdidx);
3269 if (sc->kbd != NULL) {
3270 DPRINTF(1,
3271 ("sc%d: kbd index:%d, unit:%d, flags:0x%x\n", unit,
3272 sc->kbd->kb_index, sc->kbd->kb_unit,
3273 sc->kbd->kb_flags));
3274 }
3275
3276 if (!(sc->flags & SC_INIT_DONE) || (adp != sc->adp)) {
3277 sc->initial_mode = sc->adp->va_initial_mode;
3278
3279 #ifndef SC_NO_FONT_LOADING
3280 if (flags & SC_KERNEL_CONSOLE) {
3281 sc->font_8 = font_8;
3282 sc->font_14 = font_14;
3283 sc->font_16 = font_16;
3284 } else if (sc->font_8 == NULL) {
3285 /* assert(sc_malloc) */
3286 sc->font_8 = malloc(sizeof(font_8), M_DEVBUF, M_WAITOK);
3287 sc->font_14 =
3288 malloc(sizeof(font_14), M_DEVBUF, M_WAITOK);
3289 sc->font_16 =
3290 malloc(sizeof(font_16), M_DEVBUF, M_WAITOK);
3291 }
3292 #endif
3293
3294 /* extract the hardware cursor location and hide the cursor for
3295 * now */
3296 vidd_read_hw_cursor(sc->adp, &col, &row);
3297 vidd_set_hw_cursor(sc->adp, -1, -1);
3298
3299 /* set up the first console */
3300 sc->first_vty = unit * MAXCONS;
3301 sc->vtys = MAXCONS; /* XXX: should be configurable */
3302 if (flags & SC_KERNEL_CONSOLE) {
3303 /*
3304 * Set up devs structure but don't use it yet, calling
3305 * make_dev() might panic kernel. Wait for
3306 * sc_attach_unit() to actually create the devices.
3307 */
3308 sc->dev = main_devs;
3309 scp = &main_console;
3310 init_scp(sc, sc->first_vty, scp);
3311 sc_vtb_init(&scp->vtb, VTB_MEMORY, scp->xsize,
3312 scp->ysize, (void *)sc_buffer, FALSE);
3313 if (sc_init_emulator(scp, SC_DFLT_TERM))
3314 sc_init_emulator(scp, "*");
3315 (*scp->tsw->te_default_attr)(
3316 scp, SC_KERNEL_CONS_ATTR, SC_KERNEL_CONS_REV_ATTR);
3317 } else {
3318 /* assert(sc_malloc) */
3319 sc->dev = malloc(sizeof(struct tty *) * sc->vtys,
3320 M_DEVBUF, M_WAITOK | M_ZERO);
3321 sc->dev[0] = sc_alloc_tty(0, unit * MAXCONS);
3322 scp = alloc_scp(sc, sc->first_vty);
3323 SC_STAT(sc->dev[0]) = scp;
3324 }
3325 sc->cur_scp = scp;
3326
3327 /* copy screen to temporary buffer */
3328 sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, scp->xsize, scp->ysize,
3329 (void *)scp->sc->adp->va_window, FALSE);
3330 if (ISTEXTSC(scp))
3331 sc_vtb_copy(&scp->scr, 0, &scp->vtb, 0,
3332 scp->xsize * scp->ysize);
3333
3334 /* Sync h/w cursor position to s/w (sc and teken). */
3335 if (col >= scp->xsize)
3336 col = 0;
3337 if (row >= scp->ysize)
3338 row = scp->ysize - 1;
3339 scp->xpos = col;
3340 scp->ypos = row;
3341 scp->cursor_pos = scp->cursor_oldpos = row * scp->xsize + col;
3342 (*scp->tsw->te_sync)(scp);
3343
3344 sc->dflt_curs_attr.base = 0;
3345 sc->dflt_curs_attr.height = howmany(scp->font_size, 8);
3346 sc->dflt_curs_attr.flags = 0;
3347 sc->dflt_curs_attr.bg[0] = FG_RED;
3348 sc->dflt_curs_attr.bg[1] = FG_LIGHTGREY;
3349 sc->dflt_curs_attr.bg[2] = FG_BLUE;
3350 sc->dflt_curs_attr.mouse_ba = FG_WHITE;
3351 sc->dflt_curs_attr.mouse_ia = FG_RED;
3352 sc->curs_attr = sc->dflt_curs_attr;
3353 scp->base_curs_attr = scp->dflt_curs_attr = sc->curs_attr;
3354 scp->curs_attr = scp->base_curs_attr;
3355
3356 #ifndef SC_NO_SYSMOUSE
3357 sc_mouse_move(scp, scp->xpixel / 2, scp->ypixel / 2);
3358 #endif
3359 if (!ISGRAPHSC(scp)) {
3360 sc_set_cursor_image(scp);
3361 sc_draw_cursor_image(scp);
3362 }
3363
3364 /* save font and palette */
3365 #ifndef SC_NO_FONT_LOADING
3366 sc->fonts_loaded = 0;
3367 if (ISFONTAVAIL(sc->adp->va_flags)) {
3368 #ifdef SC_DFLT_FONT
3369 bcopy(dflt_font_8, sc->font_8, sizeof(dflt_font_8));
3370 bcopy(dflt_font_14, sc->font_14, sizeof(dflt_font_14));
3371 bcopy(dflt_font_16, sc->font_16, sizeof(dflt_font_16));
3372 sc->fonts_loaded = FONT_16 | FONT_14 | FONT_8;
3373 if (scp->font_size < 14) {
3374 sc_load_font(scp, 0, 8, 8, sc->font_8, 0, 256);
3375 } else if (scp->font_size >= 16) {
3376 sc_load_font(
3377 scp, 0, 16, 8, sc->font_16, 0, 256);
3378 } else {
3379 sc_load_font(
3380 scp, 0, 14, 8, sc->font_14, 0, 256);
3381 }
3382 #else /* !SC_DFLT_FONT */
3383 if (scp->font_size < 14) {
3384 sc_save_font(scp, 0, 8, 8, sc->font_8, 0, 256);
3385 sc->fonts_loaded = FONT_8;
3386 } else if (scp->font_size >= 16) {
3387 sc_save_font(
3388 scp, 0, 16, 8, sc->font_16, 0, 256);
3389 sc->fonts_loaded = FONT_16;
3390 } else {
3391 sc_save_font(
3392 scp, 0, 14, 8, sc->font_14, 0, 256);
3393 sc->fonts_loaded = FONT_14;
3394 }
3395 #endif /* SC_DFLT_FONT */
3396 /* FONT KLUDGE: always use the font page #0. XXX */
3397 sc_show_font(scp, 0);
3398 }
3399 #endif /* !SC_NO_FONT_LOADING */
3400
3401 #ifndef SC_NO_PALETTE_LOADING
3402 vidd_save_palette(sc->adp, sc->palette);
3403 #ifdef SC_PIXEL_MODE
3404 for (i = 0; i < sizeof(sc->palette2); i++)
3405 sc->palette2[i] = i / 3;
3406 #endif
3407 #endif
3408
3409 #ifdef DEV_SPLASH
3410 if (!(sc->flags & SC_SPLASH_SCRN)) {
3411 /* we are ready to put up the splash image! */
3412 splash_init(sc->adp, scsplash_callback, sc);
3413 sc->flags |= SC_SPLASH_SCRN;
3414 }
3415 #endif
3416 }
3417
3418 /* the rest is not necessary, if we have done it once */
3419 if (sc->flags & SC_INIT_DONE)
3420 return;
3421
3422 /* initialize mapscrn arrays to a one to one map */
3423 for (i = 0; i < sizeof(sc->scr_map); i++)
3424 sc->scr_map[i] = sc->scr_rmap[i] = i;
3425
3426 sc->flags |= SC_INIT_DONE;
3427 }
3428
3429 static void
scterm(int unit,int flags)3430 scterm(int unit, int flags)
3431 {
3432 sc_softc_t *sc;
3433 scr_stat *scp;
3434
3435 sc = sc_get_softc(unit, flags & SC_KERNEL_CONSOLE);
3436 if (sc == NULL)
3437 return; /* shouldn't happen */
3438
3439 #ifdef DEV_SPLASH
3440 /* this console is no longer available for the splash screen */
3441 if (sc->flags & SC_SPLASH_SCRN) {
3442 splash_term(sc->adp);
3443 sc->flags &= ~SC_SPLASH_SCRN;
3444 }
3445 #endif
3446
3447 #if 0 /* XXX */
3448 /* move the hardware cursor to the upper-left corner */
3449 vidd_set_hw_cursor(sc->adp, 0, 0);
3450 #endif
3451
3452 /* release the keyboard and the video card */
3453 if (sc->kbd != NULL)
3454 kbd_release(sc->kbd, &sc->kbd);
3455 if (sc->adapter >= 0)
3456 vid_release(sc->adp, &sc->adapter);
3457
3458 /* stop the terminal emulator, if any */
3459 scp = sc_get_stat(sc->dev[0]);
3460 if (scp->tsw)
3461 (*scp->tsw->te_term)(scp, &scp->ts);
3462 mtx_destroy(&sc->video_mtx);
3463
3464 /* clear the structure */
3465 if (!(flags & SC_KERNEL_CONSOLE)) {
3466 free(scp->ts, M_DEVBUF);
3467 /* XXX: We need delete_dev() for this */
3468 free(sc->dev, M_DEVBUF);
3469 #if 0
3470 /* XXX: We need a ttyunregister for this */
3471 free(sc->tty, M_DEVBUF);
3472 #endif
3473 #ifndef SC_NO_FONT_LOADING
3474 free(sc->font_8, M_DEVBUF);
3475 free(sc->font_14, M_DEVBUF);
3476 free(sc->font_16, M_DEVBUF);
3477 #endif
3478 /* XXX vtb, history */
3479 }
3480 bzero(sc, sizeof(*sc));
3481 sc->adapter = -1;
3482 }
3483
3484 static void
scshutdown(__unused void * arg,__unused int howto)3485 scshutdown(__unused void *arg, __unused int howto)
3486 {
3487
3488 KASSERT(sc_console != NULL, ("sc_console != NULL"));
3489 KASSERT(sc_console->sc != NULL, ("sc_console->sc != NULL"));
3490 KASSERT(sc_console->sc->cur_scp != NULL,
3491 ("sc_console->sc->cur_scp != NULL"));
3492
3493 sc_touch_scrn_saver();
3494 if (!cold && sc_console->sc->cur_scp->index != sc_console->index &&
3495 sc_console->sc->cur_scp->smode.mode == VT_AUTO &&
3496 sc_console->smode.mode == VT_AUTO)
3497 sc_switch_scr(sc_console->sc, sc_console->index);
3498 shutdown_in_progress = TRUE;
3499 }
3500
3501 static void
scsuspend(__unused void * arg)3502 scsuspend(__unused void *arg)
3503 {
3504 int retry;
3505
3506 KASSERT(sc_console != NULL, ("sc_console != NULL"));
3507 KASSERT(sc_console->sc != NULL, ("sc_console->sc != NULL"));
3508 KASSERT(sc_console->sc->cur_scp != NULL,
3509 ("sc_console->sc->cur_scp != NULL"));
3510
3511 sc_susp_scr = sc_console->sc->cur_scp->index;
3512 if (sc_no_suspend_vtswitch || sc_susp_scr == sc_console->index) {
3513 sc_touch_scrn_saver();
3514 sc_susp_scr = -1;
3515 return;
3516 }
3517 for (retry = 0; retry < 10; retry++) {
3518 sc_switch_scr(sc_console->sc, sc_console->index);
3519 if (!sc_console->sc->switch_in_progress)
3520 break;
3521 pause("scsuspend", hz);
3522 }
3523 suspend_in_progress = TRUE;
3524 }
3525
3526 static void
scresume(__unused void * arg)3527 scresume(__unused void *arg)
3528 {
3529
3530 KASSERT(sc_console != NULL, ("sc_console != NULL"));
3531 KASSERT(sc_console->sc != NULL, ("sc_console->sc != NULL"));
3532 KASSERT(sc_console->sc->cur_scp != NULL,
3533 ("sc_console->sc->cur_scp != NULL"));
3534
3535 suspend_in_progress = FALSE;
3536 if (sc_susp_scr < 0) {
3537 update_font(sc_console->sc->cur_scp);
3538 return;
3539 }
3540 sc_switch_scr(sc_console->sc, sc_susp_scr);
3541 }
3542
3543 int
sc_clean_up(scr_stat * scp)3544 sc_clean_up(scr_stat *scp)
3545 {
3546 #ifdef DEV_SPLASH
3547 int error;
3548 #endif
3549
3550 if (scp->sc->flags & SC_SCRN_BLANKED) {
3551 sc_touch_scrn_saver();
3552 #ifdef DEV_SPLASH
3553 if ((error = wait_scrn_saver_stop(scp->sc)))
3554 return error;
3555 #endif
3556 }
3557 scp->status |= MOUSE_HIDDEN;
3558 sc_remove_mouse_image(scp);
3559 sc_remove_cutmarking(scp);
3560 return 0;
3561 }
3562
3563 void
sc_alloc_scr_buffer(scr_stat * scp,int wait,int discard)3564 sc_alloc_scr_buffer(scr_stat *scp, int wait, int discard)
3565 {
3566 sc_vtb_t new;
3567 sc_vtb_t old;
3568
3569 old = scp->vtb;
3570 sc_vtb_init(&new, VTB_MEMORY, scp->xsize, scp->ysize, NULL, wait);
3571 if (!discard && (old.vtb_flags & VTB_VALID)) {
3572 /* retain the current cursor position and buffer contants */
3573 scp->cursor_oldpos = scp->cursor_pos;
3574 /*
3575 * This works only if the old buffer has the same size as or
3576 * larger than the new one. XXX
3577 */
3578 sc_vtb_copy(&old, 0, &new, 0, scp->xsize * scp->ysize);
3579 scp->vtb = new;
3580 } else {
3581 scp->vtb = new;
3582 sc_vtb_destroy(&old);
3583 }
3584
3585 #ifndef SC_NO_SYSMOUSE
3586 /* move the mouse cursor at the center of the screen */
3587 sc_mouse_move(scp, scp->xpixel / 2, scp->ypixel / 2);
3588 #endif
3589 }
3590
3591 static scr_stat *
alloc_scp(sc_softc_t * sc,int vty)3592 alloc_scp(sc_softc_t *sc, int vty)
3593 {
3594 scr_stat *scp;
3595
3596 /* assert(sc_malloc) */
3597
3598 scp = (scr_stat *)malloc(sizeof(scr_stat), M_DEVBUF, M_WAITOK);
3599 init_scp(sc, vty, scp);
3600
3601 sc_alloc_scr_buffer(scp, TRUE, TRUE);
3602 if (sc_init_emulator(scp, SC_DFLT_TERM))
3603 sc_init_emulator(scp, "*");
3604
3605 #ifndef SC_NO_CUTPASTE
3606 sc_alloc_cut_buffer(scp, TRUE);
3607 #endif
3608
3609 #ifndef SC_NO_HISTORY
3610 sc_alloc_history_buffer(scp, 0, 0, TRUE);
3611 #endif
3612
3613 return scp;
3614 }
3615
3616 static void
init_scp(sc_softc_t * sc,int vty,scr_stat * scp)3617 init_scp(sc_softc_t *sc, int vty, scr_stat *scp)
3618 {
3619 video_info_t info;
3620
3621 bzero(scp, sizeof(*scp));
3622
3623 scp->index = vty;
3624 scp->sc = sc;
3625 scp->status = 0;
3626 scp->mode = sc->initial_mode;
3627 vidd_get_info(sc->adp, scp->mode, &info);
3628 if (info.vi_flags & V_INFO_GRAPHICS) {
3629 scp->status |= GRAPHICS_MODE;
3630 scp->xpixel = info.vi_width;
3631 scp->ypixel = info.vi_height;
3632 scp->xsize = info.vi_width / info.vi_cwidth;
3633 scp->ysize = info.vi_height / info.vi_cheight;
3634 scp->font_size = 0;
3635 scp->font = NULL;
3636 } else {
3637 scp->xsize = info.vi_width;
3638 scp->ysize = info.vi_height;
3639 scp->xpixel = scp->xsize * info.vi_cwidth;
3640 scp->ypixel = scp->ysize * info.vi_cheight;
3641 }
3642
3643 scp->font_size = info.vi_cheight;
3644 scp->font_width = info.vi_cwidth;
3645 #ifndef SC_NO_FONT_LOADING
3646 if (info.vi_cheight < 14)
3647 scp->font = sc->font_8;
3648 else if (info.vi_cheight >= 16)
3649 scp->font = sc->font_16;
3650 else
3651 scp->font = sc->font_14;
3652 #else
3653 scp->font = NULL;
3654 #endif
3655
3656 sc_vtb_init(&scp->vtb, VTB_MEMORY, 0, 0, NULL, FALSE);
3657 sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, 0, 0, NULL, FALSE);
3658 scp->xoff = scp->yoff = 0;
3659 scp->xpos = scp->ypos = 0;
3660 scp->start = scp->xsize * scp->ysize - 1;
3661 scp->end = 0;
3662 scp->tsw = NULL;
3663 scp->ts = NULL;
3664 scp->rndr = NULL;
3665 scp->border = (SC_NORM_ATTR >> 4) & 0x0f;
3666 scp->base_curs_attr = scp->dflt_curs_attr = sc->curs_attr;
3667 scp->mouse_cut_start = scp->xsize * scp->ysize;
3668 scp->mouse_cut_end = -1;
3669 scp->mouse_signal = 0;
3670 scp->mouse_pid = 0;
3671 scp->mouse_proc = NULL;
3672 scp->kbd_mode = K_XLATE;
3673 scp->bell_pitch = bios_value.bell_pitch;
3674 scp->bell_duration = BELL_DURATION;
3675 scp->status |= (bios_value.shift_state & NLKED);
3676 scp->status |= CURSOR_ENABLED | MOUSE_HIDDEN;
3677 scp->pid = 0;
3678 scp->proc = NULL;
3679 scp->smode.mode = VT_AUTO;
3680 scp->history = NULL;
3681 scp->history_pos = 0;
3682 scp->history_size = 0;
3683 }
3684
3685 int
sc_init_emulator(scr_stat * scp,char * name)3686 sc_init_emulator(scr_stat *scp, char *name)
3687 {
3688 sc_term_sw_t *sw;
3689 sc_rndr_sw_t *rndr;
3690 void *p;
3691 int error;
3692
3693 if (name == NULL) /* if no name is given, use the current emulator */
3694 sw = scp->tsw;
3695 else /* ...otherwise find the named emulator */
3696 sw = sc_term_match(name);
3697 if (sw == NULL)
3698 return EINVAL;
3699
3700 rndr = NULL;
3701 if (strcmp(sw->te_renderer, "*") != 0) {
3702 rndr = sc_render_match(scp, sw->te_renderer,
3703 scp->status & (GRAPHICS_MODE | PIXEL_MODE));
3704 }
3705 if (rndr == NULL) {
3706 rndr = sc_render_match(scp, scp->sc->adp->va_name,
3707 scp->status & (GRAPHICS_MODE | PIXEL_MODE));
3708 if (rndr == NULL)
3709 return ENODEV;
3710 }
3711
3712 if (sw == scp->tsw) {
3713 error = (*sw->te_init)(scp, &scp->ts, SC_TE_WARM_INIT);
3714 scp->rndr = rndr;
3715 scp->rndr->init(scp);
3716 sc_clear_screen(scp);
3717 /* assert(error == 0); */
3718 return error;
3719 }
3720
3721 if (sc_malloc && (sw->te_size > 0))
3722 p = malloc(sw->te_size, M_DEVBUF, M_NOWAIT);
3723 else
3724 p = NULL;
3725 error = (*sw->te_init)(scp, &p, SC_TE_COLD_INIT);
3726 if (error)
3727 return error;
3728
3729 if (scp->tsw)
3730 (*scp->tsw->te_term)(scp, &scp->ts);
3731 if (scp->ts != NULL)
3732 free(scp->ts, M_DEVBUF);
3733 scp->tsw = sw;
3734 scp->ts = p;
3735 scp->rndr = rndr;
3736 scp->rndr->init(scp);
3737
3738 (*sw->te_default_attr)(scp, SC_NORM_ATTR, SC_NORM_REV_ATTR);
3739 sc_clear_screen(scp);
3740
3741 return 0;
3742 }
3743
3744 /*
3745 * scgetc(flags) - get character from keyboard.
3746 * If flags & SCGETC_CN, then avoid harmful side effects.
3747 * If flags & SCGETC_NONBLOCK, then wait until a key is pressed, else
3748 * return NOKEY if there is nothing there.
3749 */
3750 static u_int
scgetc(sc_softc_t * sc,u_int flags,struct sc_cnstate * sp)3751 scgetc(sc_softc_t *sc, u_int flags, struct sc_cnstate *sp)
3752 {
3753 scr_stat *scp;
3754 #ifndef SC_NO_HISTORY
3755 struct tty *tp;
3756 #endif
3757 u_int c;
3758 int this_scr;
3759 int f;
3760 int i;
3761
3762 if (sc->kbd == NULL)
3763 return NOKEY;
3764
3765 next_code:
3766 #if 1
3767 /* I don't like this, but... XXX */
3768 if (flags & SCGETC_CN)
3769 sccnupdate(sc->cur_scp);
3770 #endif
3771 scp = sc->cur_scp;
3772 /* first see if there is something in the keyboard port */
3773 for (;;) {
3774 if (flags & SCGETC_CN)
3775 sccnscrunlock(sc, sp);
3776 c = kbdd_read_char(sc->kbd, !(flags & SCGETC_NONBLOCK));
3777 if (flags & SCGETC_CN)
3778 sccnscrlock(sc, sp);
3779 if (c == ERRKEY) {
3780 if (!(flags & SCGETC_CN))
3781 sc_bell(
3782 scp, bios_value.bell_pitch, BELL_DURATION);
3783 } else if (c == NOKEY)
3784 return c;
3785 else
3786 break;
3787 }
3788
3789 /* make screensaver happy */
3790 if (!(c & RELKEY))
3791 sc_touch_scrn_saver();
3792
3793 if (!(flags & SCGETC_CN))
3794 random_harvest_queue(&c, sizeof(c), RANDOM_KEYBOARD);
3795
3796 if (sc->kbd_open_level == 0 && scp->kbd_mode != K_XLATE)
3797 return KEYCHAR(c);
3798
3799 /* if scroll-lock pressed allow history browsing */
3800 if (!ISGRAPHSC(scp) && scp->history && scp->status & SLKED) {
3801 scp->status &= ~CURSOR_ENABLED;
3802 sc_remove_cursor_image(scp);
3803
3804 #ifndef SC_NO_HISTORY
3805 if (!(scp->status & BUFFER_SAVED)) {
3806 scp->status |= BUFFER_SAVED;
3807 sc_hist_save(scp);
3808 }
3809 switch (c) {
3810 /* FIXME: key codes */
3811 case SPCLKEY | FKEY | F(49): /* home key */
3812 sc_remove_cutmarking(scp);
3813 sc_hist_home(scp);
3814 goto next_code;
3815
3816 case SPCLKEY | FKEY | F(57): /* end key */
3817 sc_remove_cutmarking(scp);
3818 sc_hist_end(scp);
3819 goto next_code;
3820
3821 case SPCLKEY | FKEY | F(50): /* up arrow key */
3822 sc_remove_cutmarking(scp);
3823 if (sc_hist_up_line(scp))
3824 if (!(flags & SCGETC_CN))
3825 sc_bell(scp, bios_value.bell_pitch,
3826 BELL_DURATION);
3827 goto next_code;
3828
3829 case SPCLKEY | FKEY | F(58): /* down arrow key */
3830 sc_remove_cutmarking(scp);
3831 if (sc_hist_down_line(scp))
3832 if (!(flags & SCGETC_CN))
3833 sc_bell(scp, bios_value.bell_pitch,
3834 BELL_DURATION);
3835 goto next_code;
3836
3837 case SPCLKEY | FKEY | F(51): /* page up key */
3838 sc_remove_cutmarking(scp);
3839 for (i = 0; i < scp->ysize; i++)
3840 if (sc_hist_up_line(scp)) {
3841 if (!(flags & SCGETC_CN))
3842 sc_bell(scp,
3843 bios_value.bell_pitch,
3844 BELL_DURATION);
3845 break;
3846 }
3847 goto next_code;
3848
3849 case SPCLKEY | FKEY | F(59): /* page down key */
3850 sc_remove_cutmarking(scp);
3851 for (i = 0; i < scp->ysize; i++)
3852 if (sc_hist_down_line(scp)) {
3853 if (!(flags & SCGETC_CN))
3854 sc_bell(scp,
3855 bios_value.bell_pitch,
3856 BELL_DURATION);
3857 break;
3858 }
3859 goto next_code;
3860 }
3861 #endif /* SC_NO_HISTORY */
3862 }
3863
3864 /*
3865 * Process and consume special keys here. Return a plain char code
3866 * or a char code with the META flag or a function key code.
3867 */
3868 if (c & RELKEY) {
3869 /* key released */
3870 /* goto next_code */
3871 } else {
3872 /* key pressed */
3873 if (c & SPCLKEY) {
3874 c &= ~SPCLKEY;
3875 switch (KEYCHAR(c)) {
3876 /* LOCKING KEYS */
3877 case NLK:
3878 case CLK:
3879 case ALK:
3880 break;
3881 case SLK:
3882 (void)kbdd_ioctl(
3883 sc->kbd, KDGKBSTATE, (caddr_t)&f);
3884 if (f & SLKED) {
3885 scp->status |= SLKED;
3886 } else {
3887 if (scp->status & SLKED) {
3888 scp->status &= ~SLKED;
3889 #ifndef SC_NO_HISTORY
3890 if (scp->status &
3891 BUFFER_SAVED) {
3892 if (!sc_hist_restore(
3893 scp))
3894 sc_remove_cutmarking(
3895 scp);
3896 scp->status &=
3897 ~BUFFER_SAVED;
3898 scp->status |=
3899 CURSOR_ENABLED;
3900 sc_draw_cursor_image(
3901 scp);
3902 }
3903 /* Only safe in Giant-locked
3904 * context. */
3905 tp = SC_DEV(sc, scp->index);
3906 if (!(flags & SCGETC_CN) &&
3907 tty_opened_ns(tp))
3908 sctty_outwakeup(tp);
3909 #endif
3910 }
3911 }
3912 break;
3913
3914 case PASTE:
3915 #ifndef SC_NO_CUTPASTE
3916 sc_mouse_paste(scp);
3917 #endif
3918 break;
3919
3920 /* NON-LOCKING KEYS */
3921 case NOP:
3922 case LSH:
3923 case RSH:
3924 case LCTR:
3925 case RCTR:
3926 case LALT:
3927 case RALT:
3928 case ASH:
3929 case META:
3930 break;
3931
3932 case BTAB:
3933 if (!(sc->flags & SC_SCRN_BLANKED))
3934 return c;
3935 break;
3936
3937 case SPSC:
3938 #ifdef DEV_SPLASH
3939 /* force activatation/deactivation of the screen
3940 * saver */
3941 if (!(sc->flags & SC_SCRN_BLANKED)) {
3942 run_scrn_saver = TRUE;
3943 sc->scrn_time_stamp -= scrn_blank_time;
3944 }
3945 if (cold) {
3946 /*
3947 * While devices are being probed, the
3948 * screen saver need to be invoked
3949 * explicitly. XXX
3950 */
3951 if (sc->flags & SC_SCRN_BLANKED) {
3952 scsplash_stick(FALSE);
3953 stop_scrn_saver(
3954 sc, current_saver);
3955 } else {
3956 if (!ISGRAPHSC(scp)) {
3957 scsplash_stick(TRUE);
3958 (*current_saver)(
3959 sc, TRUE);
3960 }
3961 }
3962 }
3963 #endif /* DEV_SPLASH */
3964 break;
3965
3966 case RBT:
3967 #ifndef SC_DISABLE_REBOOT
3968 if (enable_reboot && !(flags & SCGETC_CN))
3969 shutdown_nice(0);
3970 #endif
3971 break;
3972
3973 case HALT:
3974 #ifndef SC_DISABLE_REBOOT
3975 if (enable_reboot && !(flags & SCGETC_CN))
3976 shutdown_nice(RB_HALT);
3977 #endif
3978 break;
3979
3980 case PDWN:
3981 #ifndef SC_DISABLE_REBOOT
3982 if (enable_reboot && !(flags & SCGETC_CN))
3983 shutdown_nice(RB_HALT | RB_POWEROFF);
3984 #endif
3985 break;
3986
3987 case SUSP:
3988 power_pm_suspend(POWER_SLEEP_STATE_SUSPEND);
3989 break;
3990 case STBY:
3991 power_pm_suspend(POWER_SLEEP_STATE_STANDBY);
3992 break;
3993
3994 case DBG:
3995 #ifndef SC_DISABLE_KDBKEY
3996 if (enable_kdbkey)
3997 kdb_break();
3998 #endif
3999 break;
4000
4001 case PNC:
4002 if (enable_panic_key)
4003 panic("Forced by the panic key");
4004 break;
4005
4006 case NEXT:
4007 this_scr = scp->index;
4008 for (i = (this_scr - sc->first_vty + 1) %
4009 sc->vtys;
4010 sc->first_vty + i != this_scr;
4011 i = (i + 1) % sc->vtys) {
4012 struct tty *tp =
4013 SC_DEV(sc, sc->first_vty + i);
4014 if (tty_opened_ns(tp)) {
4015 sc_switch_scr(
4016 scp->sc, sc->first_vty + i);
4017 break;
4018 }
4019 }
4020 break;
4021
4022 case PREV:
4023 this_scr = scp->index;
4024 for (i = (this_scr - sc->first_vty + sc->vtys -
4025 1) %
4026 sc->vtys;
4027 sc->first_vty + i != this_scr;
4028 i = (i + sc->vtys - 1) % sc->vtys) {
4029 struct tty *tp =
4030 SC_DEV(sc, sc->first_vty + i);
4031 if (tty_opened_ns(tp)) {
4032 sc_switch_scr(
4033 scp->sc, sc->first_vty + i);
4034 break;
4035 }
4036 }
4037 break;
4038
4039 default:
4040 if (KEYCHAR(c) >= F_SCR &&
4041 KEYCHAR(c) <= L_SCR) {
4042 sc_switch_scr(scp->sc,
4043 sc->first_vty + KEYCHAR(c) - F_SCR);
4044 break;
4045 }
4046 /* assert(c & FKEY) */
4047 if (!(sc->flags & SC_SCRN_BLANKED))
4048 return c;
4049 break;
4050 }
4051 /* goto next_code */
4052 } else {
4053 /* regular keys (maybe MKEY is set) */
4054 #if !defined(SC_DISABLE_KDBKEY) && defined(KDB)
4055 if (enable_kdbkey)
4056 kdb_alt_break(c, &sc->sc_altbrk);
4057 #endif
4058 if (!(sc->flags & SC_SCRN_BLANKED))
4059 return c;
4060 }
4061 }
4062
4063 goto next_code;
4064 }
4065
4066 static int
sctty_mmap(struct tty * tp,vm_ooffset_t offset,vm_paddr_t * paddr,int nprot,vm_memattr_t * memattr)4067 sctty_mmap(struct tty *tp, vm_ooffset_t offset, vm_paddr_t *paddr, int nprot,
4068 vm_memattr_t *memattr)
4069 {
4070 scr_stat *scp;
4071
4072 scp = sc_get_stat(tp);
4073 if (scp != scp->sc->cur_scp)
4074 return -1;
4075 return vidd_mmap(scp->sc->adp, offset, paddr, nprot, memattr);
4076 }
4077
4078 static void
update_font(scr_stat * scp)4079 update_font(scr_stat *scp)
4080 {
4081 #ifndef SC_NO_FONT_LOADING
4082 /* load appropriate font */
4083 if (!(scp->status & GRAPHICS_MODE)) {
4084 if (!(scp->status & PIXEL_MODE) &&
4085 ISFONTAVAIL(scp->sc->adp->va_flags)) {
4086 if (scp->font_size < 14) {
4087 if (scp->sc->fonts_loaded & FONT_8)
4088 sc_load_font(scp, 0, 8, 8,
4089 scp->sc->font_8, 0, 256);
4090 } else if (scp->font_size >= 16) {
4091 if (scp->sc->fonts_loaded & FONT_16)
4092 sc_load_font(scp, 0, 16, 8,
4093 scp->sc->font_16, 0, 256);
4094 } else {
4095 if (scp->sc->fonts_loaded & FONT_14)
4096 sc_load_font(scp, 0, 14, 8,
4097 scp->sc->font_14, 0, 256);
4098 }
4099 /*
4100 * FONT KLUDGE:
4101 * This is an interim kludge to display correct font.
4102 * Always use the font page #0 on the video plane 2.
4103 * Somehow we cannot show the font in other font pages
4104 * on some video cards... XXX
4105 */
4106 sc_show_font(scp, 0);
4107 }
4108 mark_all(scp);
4109 }
4110 #endif /* !SC_NO_FONT_LOADING */
4111 }
4112
4113 static int
save_kbd_state(scr_stat * scp)4114 save_kbd_state(scr_stat *scp)
4115 {
4116 int state;
4117 int error;
4118
4119 error = kbdd_ioctl(scp->sc->kbd, KDGKBSTATE, (caddr_t)&state);
4120 if (error == ENOIOCTL)
4121 error = ENODEV;
4122 if (error == 0) {
4123 scp->status &= ~LOCK_MASK;
4124 scp->status |= state;
4125 }
4126 return error;
4127 }
4128
4129 static int
update_kbd_state(scr_stat * scp,int new_bits,int mask)4130 update_kbd_state(scr_stat *scp, int new_bits, int mask)
4131 {
4132 int state;
4133 int error;
4134
4135 if (mask != LOCK_MASK) {
4136 error = kbdd_ioctl(scp->sc->kbd, KDGKBSTATE, (caddr_t)&state);
4137 if (error == ENOIOCTL)
4138 error = ENODEV;
4139 if (error)
4140 return error;
4141 state &= ~mask;
4142 state |= new_bits & mask;
4143 } else {
4144 state = new_bits & LOCK_MASK;
4145 }
4146 error = kbdd_ioctl(scp->sc->kbd, KDSKBSTATE, (caddr_t)&state);
4147 if (error == ENOIOCTL)
4148 error = ENODEV;
4149 return error;
4150 }
4151
4152 static int
update_kbd_leds(scr_stat * scp,int which)4153 update_kbd_leds(scr_stat *scp, int which)
4154 {
4155 int error;
4156
4157 which &= LOCK_MASK;
4158 error = kbdd_ioctl(scp->sc->kbd, KDSETLED, (caddr_t)&which);
4159 if (error == ENOIOCTL)
4160 error = ENODEV;
4161 return error;
4162 }
4163
4164 int
set_mode(scr_stat * scp)4165 set_mode(scr_stat *scp)
4166 {
4167 video_info_t info;
4168
4169 /* reject unsupported mode */
4170 if (vidd_get_info(scp->sc->adp, scp->mode, &info))
4171 return 1;
4172
4173 /* if this vty is not currently showing, do nothing */
4174 if (scp != scp->sc->cur_scp)
4175 return 0;
4176
4177 /* setup video hardware for the given mode */
4178 vidd_set_mode(scp->sc->adp, scp->mode);
4179 scp->rndr->init(scp);
4180 sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, scp->xsize, scp->ysize,
4181 (void *)scp->sc->adp->va_window, FALSE);
4182
4183 update_font(scp);
4184
4185 sc_set_border(scp, scp->border);
4186 sc_set_cursor_image(scp);
4187
4188 return 0;
4189 }
4190
4191 void
sc_set_border(scr_stat * scp,int color)4192 sc_set_border(scr_stat *scp, int color)
4193 {
4194 SC_VIDEO_LOCK(scp->sc);
4195 (*scp->rndr->draw_border)(scp, color);
4196 SC_VIDEO_UNLOCK(scp->sc);
4197 }
4198
4199 #ifndef SC_NO_FONT_LOADING
4200 void
sc_load_font(scr_stat * scp,int page,int size,int width,u_char * buf,int base,int count)4201 sc_load_font(scr_stat *scp, int page, int size, int width, u_char *buf,
4202 int base, int count)
4203 {
4204 sc_softc_t *sc;
4205
4206 sc = scp->sc;
4207 sc->font_loading_in_progress = TRUE;
4208 vidd_load_font(sc->adp, page, size, width, buf, base, count);
4209 sc->font_loading_in_progress = FALSE;
4210 }
4211
4212 void
sc_save_font(scr_stat * scp,int page,int size,int width,u_char * buf,int base,int count)4213 sc_save_font(scr_stat *scp, int page, int size, int width, u_char *buf,
4214 int base, int count)
4215 {
4216 sc_softc_t *sc;
4217
4218 sc = scp->sc;
4219 sc->font_loading_in_progress = TRUE;
4220 vidd_save_font(sc->adp, page, size, width, buf, base, count);
4221 sc->font_loading_in_progress = FALSE;
4222 }
4223
4224 void
sc_show_font(scr_stat * scp,int page)4225 sc_show_font(scr_stat *scp, int page)
4226 {
4227 vidd_show_font(scp->sc->adp, page);
4228 }
4229 #endif /* !SC_NO_FONT_LOADING */
4230
4231 void
sc_paste(scr_stat * scp,const u_char * p,int count)4232 sc_paste(scr_stat *scp, const u_char *p, int count)
4233 {
4234 struct tty *tp;
4235 u_char *rmap;
4236
4237 tp = SC_DEV(scp->sc, scp->sc->cur_scp->index);
4238 if (!tty_opened_ns(tp))
4239 return;
4240 rmap = scp->sc->scr_rmap;
4241 for (; count > 0; --count)
4242 ttydisc_rint(tp, rmap[*p++], 0);
4243 ttydisc_rint_done(tp);
4244 }
4245
4246 void
sc_respond(scr_stat * scp,const u_char * p,int count,int wakeup)4247 sc_respond(scr_stat *scp, const u_char *p, int count, int wakeup)
4248 {
4249 struct tty *tp;
4250
4251 tp = SC_DEV(scp->sc, scp->sc->cur_scp->index);
4252 if (!tty_opened_ns(tp))
4253 return;
4254 ttydisc_rint_simple(tp, p, count);
4255 if (wakeup) {
4256 /* XXX: we can't always call ttydisc_rint_done() here! */
4257 ttydisc_rint_done(tp);
4258 }
4259 }
4260
4261 /*
4262 * pitch is the divisor for 1.193182MHz PIT clock. By dividing 1193172 / pitch,
4263 * we convert it back to Hz.
4264 * duration is in ticks of 1/hz.
4265 */
4266 void
sc_bell(scr_stat * scp,int pitch,int duration)4267 sc_bell(scr_stat *scp, int pitch, int duration)
4268 {
4269 if (cold || kdb_active || shutdown_in_progress || !enable_bell)
4270 return;
4271
4272 if (scp != scp->sc->cur_scp && (scp->sc->flags & SC_QUIET_BELL))
4273 return;
4274
4275 if (scp->sc->flags & SC_VISUAL_BELL) {
4276 if (scp->sc->blink_in_progress)
4277 return;
4278 scp->sc->blink_in_progress = 3;
4279 if (scp != scp->sc->cur_scp)
4280 scp->sc->blink_in_progress += 2;
4281 blink_screen(scp->sc->cur_scp);
4282 } else if (duration != 0 && pitch != 0) {
4283 if (scp != scp->sc->cur_scp)
4284 pitch *= 2;
4285 sysbeep(1193182 / pitch, SBT_1S * duration / hz);
4286 }
4287 }
4288
4289 static int
sc_kattr(void)4290 sc_kattr(void)
4291 {
4292 if (sc_console == NULL)
4293 return (SC_KERNEL_CONS_ATTR); /* for very early, before pcpu */
4294 return (sc_kattrtab[curcpu % nitems(sc_kattrtab)]);
4295 }
4296
4297 static void
blink_screen(void * arg)4298 blink_screen(void *arg)
4299 {
4300 scr_stat *scp = arg;
4301 struct tty *tp;
4302
4303 if (ISGRAPHSC(scp) || (scp->sc->blink_in_progress <= 1)) {
4304 scp->sc->blink_in_progress = 0;
4305 mark_all(scp);
4306 tp = SC_DEV(scp->sc, scp->index);
4307 if (tty_opened_ns(tp))
4308 sctty_outwakeup(tp);
4309 if (scp->sc->delayed_next_scr)
4310 sc_switch_scr(scp->sc, scp->sc->delayed_next_scr - 1);
4311 } else {
4312 (*scp->rndr->draw)(scp, 0, scp->xsize * scp->ysize,
4313 scp->sc->blink_in_progress & 1);
4314 scp->sc->blink_in_progress--;
4315 callout_reset_sbt(&scp->sc->cblink, SBT_1S / 15, 0,
4316 blink_screen, scp, C_PREL(0));
4317 }
4318 }
4319
4320 /*
4321 * Until sc_attach_unit() gets called no dev structures will be available
4322 * to store the per-screen current status. This is the case when the
4323 * kernel is initially booting and needs access to its console. During
4324 * this early phase of booting the console's current status is kept in
4325 * one statically defined scr_stat structure, and any pointers to the
4326 * dev structures will be NULL.
4327 */
4328
4329 static scr_stat *
sc_get_stat(struct tty * tp)4330 sc_get_stat(struct tty *tp)
4331 {
4332 if (tp == NULL)
4333 return (&main_console);
4334 return (SC_STAT(tp));
4335 }
4336
4337 /*
4338 * Allocate active keyboard. Try to allocate "kbdmux" keyboard first, and,
4339 * if found, add all non-busy keyboards to "kbdmux". Otherwise look for
4340 * any keyboard.
4341 */
4342
4343 static int
sc_allocate_keyboard(sc_softc_t * sc,int unit)4344 sc_allocate_keyboard(sc_softc_t *sc, int unit)
4345 {
4346 int idx0, idx;
4347 keyboard_t *k0, *k;
4348 keyboard_info_t ki;
4349
4350 idx0 =
4351 kbd_allocate("kbdmux", -1, (void *)&sc->kbd, sckbdevent, sc);
4352 if (idx0 != -1) {
4353 k0 = kbd_get_keyboard(idx0);
4354
4355 for (idx = kbd_find_keyboard2("*", -1, 0); idx != -1;
4356 idx = kbd_find_keyboard2("*", -1, idx + 1)) {
4357 k = kbd_get_keyboard(idx);
4358
4359 if (idx == idx0 || KBD_IS_BUSY(k))
4360 continue;
4361
4362 bzero(&ki, sizeof(ki));
4363 strcpy(ki.kb_name, k->kb_name);
4364 ki.kb_unit = k->kb_unit;
4365
4366 (void)kbdd_ioctl(k0, KBADDKBD, (caddr_t)&ki);
4367 }
4368 } else
4369 idx0 = kbd_allocate(
4370 "*", unit, (void *)&sc->kbd, sckbdevent, sc);
4371
4372 return (idx0);
4373 }
4374