1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2009, 2013 The FreeBSD Foundation
5 *
6 * This software was developed by Ed Schouten under sponsorship from the
7 * FreeBSD Foundation.
8 *
9 * Portions of this software were developed by Oleksandr Rybalko
10 * under sponsorship from the FreeBSD Foundation.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34 #include <sys/param.h>
35 #include <sys/consio.h>
36 #include <sys/devctl.h>
37 #include <sys/eventhandler.h>
38 #include <sys/fbio.h>
39 #include <sys/font.h>
40 #include <sys/kbio.h>
41 #include <sys/kdb.h>
42 #include <sys/kernel.h>
43 #include <sys/linker.h>
44 #include <sys/lock.h>
45 #include <sys/malloc.h>
46 #include <sys/mutex.h>
47 #include <sys/splash.h>
48 #include <sys/power.h>
49 #include <sys/priv.h>
50 #include <sys/proc.h>
51 #include <sys/random.h>
52 #include <sys/reboot.h>
53 #include <sys/sbuf.h>
54 #include <sys/systm.h>
55 #include <sys/terminal.h>
56
57 #include <dev/kbd/kbdreg.h>
58 #include <dev/vt/vt.h>
59
60 #if defined(__i386__) || defined(__amd64__)
61 #include <machine/psl.h>
62 #include <machine/frame.h>
63 #endif
64
65 static int vtterm_cngrab_noswitch(struct vt_device *, struct vt_window *);
66 static int vtterm_cnungrab_noswitch(struct vt_device *, struct vt_window *);
67
68 static tc_bell_t vtterm_bell;
69 static tc_cursor_t vtterm_cursor;
70 static tc_putchar_t vtterm_putchar;
71 static tc_fill_t vtterm_fill;
72 static tc_copy_t vtterm_copy;
73 static tc_pre_input_t vtterm_pre_input;
74 static tc_post_input_t vtterm_post_input;
75 static tc_param_t vtterm_param;
76 static tc_done_t vtterm_done;
77
78 static tc_cnprobe_t vtterm_cnprobe;
79 static tc_cngetc_t vtterm_cngetc;
80
81 static tc_cngrab_t vtterm_cngrab;
82 static tc_cnungrab_t vtterm_cnungrab;
83
84 static tc_opened_t vtterm_opened;
85 static tc_ioctl_t vtterm_ioctl;
86 static tc_mmap_t vtterm_mmap;
87
88 static const struct terminal_class vt_termclass = {
89 .tc_bell = vtterm_bell,
90 .tc_cursor = vtterm_cursor,
91 .tc_putchar = vtterm_putchar,
92 .tc_fill = vtterm_fill,
93 .tc_copy = vtterm_copy,
94 .tc_pre_input = vtterm_pre_input,
95 .tc_post_input = vtterm_post_input,
96 .tc_param = vtterm_param,
97 .tc_done = vtterm_done,
98
99 .tc_cnprobe = vtterm_cnprobe,
100 .tc_cngetc = vtterm_cngetc,
101
102 .tc_cngrab = vtterm_cngrab,
103 .tc_cnungrab = vtterm_cnungrab,
104
105 .tc_opened = vtterm_opened,
106 .tc_ioctl = vtterm_ioctl,
107 .tc_mmap = vtterm_mmap,
108 };
109
110 /*
111 * Use a constant timer of 25 Hz to redraw the screen.
112 *
113 * XXX: In theory we should only fire up the timer when there is really
114 * activity. Unfortunately we cannot always start timers. We really
115 * don't want to process kernel messages synchronously, because it
116 * really slows down the system.
117 */
118 #define VT_TIMERFREQ 25
119
120 /* Bell pitch/duration. */
121 #define VT_BELLDURATION (SBT_1S / 20)
122 #define VT_BELLPITCH 800
123
124 #define VT_UNIT(vw) ((vw)->vw_device->vd_unit * VT_MAXWINDOWS + \
125 (vw)->vw_number)
126
127 static SYSCTL_NODE(_kern, OID_AUTO, vt, CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
128 "vt(9) parameters");
129 static VT_SYSCTL_INT(enable_altgr, 1, "Enable AltGr key (Do not assume R.Alt as Alt)");
130 static VT_SYSCTL_INT(enable_bell, 0, "Enable bell");
131 static VT_SYSCTL_INT(debug, 0, "vt(9) debug level");
132 static VT_SYSCTL_INT(deadtimer, 15, "Time to wait busy process in VT_PROCESS mode");
133 static VT_SYSCTL_INT(suspendswitch, 1, "Switch to VT0 before suspend");
134
135 /* Slow down and dont rely on timers and interrupts */
136 static VT_SYSCTL_INT(slow_down, 0, "Non-zero make console slower and synchronous.");
137
138 /* Allow to disable some keyboard combinations. */
139 static VT_SYSCTL_INT(kbd_halt, 1, "Enable halt keyboard combination. "
140 "See kbdmap(5) to configure.");
141 static VT_SYSCTL_INT(kbd_poweroff, 1, "Enable Power Off keyboard combination. "
142 "See kbdmap(5) to configure.");
143 static VT_SYSCTL_INT(kbd_reboot, 1, "Enable reboot keyboard combination. "
144 "See kbdmap(5) to configure (typically Ctrl-Alt-Delete).");
145 static VT_SYSCTL_INT(kbd_debug, 1, "Enable key combination to enter debugger. "
146 "See kbdmap(5) to configure (typically Ctrl-Alt-Esc).");
147 static VT_SYSCTL_INT(kbd_panic, 0, "Enable request to panic. "
148 "See kbdmap(5) to configure.");
149
150 /* Used internally, not a tunable. */
151 int vt_draw_logo_cpus;
152 VT_SYSCTL_INT(splash_cpu, 0, "Show logo CPUs during boot");
153 VT_SYSCTL_INT(splash_ncpu, 0, "Override number of logos displayed "
154 "(0 = do not override)");
155 VT_SYSCTL_INT(splash_cpu_style, 2, "Draw logo style "
156 "(0 = Alternate beastie, 1 = Beastie, 2 = Orb)");
157 VT_SYSCTL_INT(splash_cpu_duration, 10, "Hide logos after (seconds)");
158
159 static unsigned int vt_unit = 0;
160 static MALLOC_DEFINE(M_VT, "vt", "vt device");
161 struct vt_device *main_vd = &vt_consdev;
162
163 /* Boot logo. */
164 extern unsigned int vt_logo_width;
165 extern unsigned int vt_logo_height;
166 extern unsigned int vt_logo_depth;
167 extern unsigned char vt_logo_image[];
168 #ifndef DEV_SPLASH
169 #define vtterm_draw_cpu_logos(...) do {} while (0)
170 const unsigned int vt_logo_sprite_height;
171 #endif
172
173 /*
174 * Console font. vt_font_loader will be filled with font data passed
175 * by loader. If there is no font passed by boot loader, we use built in
176 * default.
177 */
178 extern struct vt_font vt_font_default;
179 static struct vt_font vt_font_loader;
180 static struct vt_font *vt_font_assigned = &vt_font_default;
181
182 #ifndef SC_NO_CUTPASTE
183 extern struct vt_mouse_cursor vt_default_mouse_pointer;
184 #endif
185
186 static int signal_vt_rel(struct vt_window *);
187 static int signal_vt_acq(struct vt_window *);
188 static int finish_vt_rel(struct vt_window *, int, int *);
189 static int finish_vt_acq(struct vt_window *);
190 static int vt_window_switch(struct vt_window *);
191 static int vt_late_window_switch(struct vt_window *);
192 static int vt_proc_alive(struct vt_window *);
193 static void vt_resize(struct vt_device *);
194 static void vt_update_static(void *);
195 #ifndef SC_NO_CUTPASTE
196 static void vt_mouse_paste(void);
197 #endif
198 static void vt_suspend_handler(void *priv);
199 static void vt_resume_handler(void *priv);
200
201 SET_DECLARE(vt_drv_set, struct vt_driver);
202
203 #define _VTDEFH MAX(100, PIXEL_HEIGHT(VT_FB_MAX_HEIGHT))
204 #define _VTDEFW MAX(200, PIXEL_WIDTH(VT_FB_MAX_WIDTH))
205
206 static struct terminal vt_consterm;
207 static struct vt_window vt_conswindow;
208 static term_char_t vt_consdrawn[PIXEL_HEIGHT(VT_FB_MAX_HEIGHT) * PIXEL_WIDTH(VT_FB_MAX_WIDTH)];
209 static term_color_t vt_consdrawnfg[PIXEL_HEIGHT(VT_FB_MAX_HEIGHT) * PIXEL_WIDTH(VT_FB_MAX_WIDTH)];
210 static term_color_t vt_consdrawnbg[PIXEL_HEIGHT(VT_FB_MAX_HEIGHT) * PIXEL_WIDTH(VT_FB_MAX_WIDTH)];
211 static bool vt_cons_pos_to_flush[PIXEL_HEIGHT(VT_FB_MAX_HEIGHT) * PIXEL_WIDTH(VT_FB_MAX_WIDTH)];
212 struct vt_device vt_consdev = {
213 .vd_driver = NULL,
214 .vd_softc = NULL,
215 .vd_prev_driver = NULL,
216 .vd_prev_softc = NULL,
217 .vd_flags = VDF_INVALID,
218 .vd_windows = { [VT_CONSWINDOW] = &vt_conswindow, },
219 .vd_curwindow = &vt_conswindow,
220 .vd_kbstate = 0,
221
222 #ifndef SC_NO_CUTPASTE
223 .vd_pastebuf = {
224 .vpb_buf = NULL,
225 .vpb_bufsz = 0,
226 .vpb_len = 0
227 },
228 .vd_mcursor = &vt_default_mouse_pointer,
229 .vd_mcursor_fg = TC_WHITE,
230 .vd_mcursor_bg = TC_BLACK,
231 #endif
232
233 .vd_drawn = vt_consdrawn,
234 .vd_drawnfg = vt_consdrawnfg,
235 .vd_drawnbg = vt_consdrawnbg,
236
237 .vd_pos_to_flush = vt_cons_pos_to_flush,
238 };
239 static term_char_t vt_constextbuf[(_VTDEFW) * (VBF_DEFAULT_HISTORY_SIZE)];
240 static term_char_t *vt_constextbufrows[VBF_DEFAULT_HISTORY_SIZE];
241 static struct vt_window vt_conswindow = {
242 .vw_number = VT_CONSWINDOW,
243 .vw_flags = VWF_CONSOLE,
244 .vw_buf = {
245 .vb_buffer = &vt_constextbuf[0],
246 .vb_rows = &vt_constextbufrows[0],
247 .vb_history_size = VBF_DEFAULT_HISTORY_SIZE,
248 .vb_curroffset = 0,
249 .vb_roffset = 0,
250 .vb_flags = VBF_STATIC,
251 .vb_mark_start = {.tp_row = 0, .tp_col = 0,},
252 .vb_mark_end = {.tp_row = 0, .tp_col = 0,},
253 .vb_scr_size = {
254 .tp_row = _VTDEFH,
255 .tp_col = _VTDEFW,
256 },
257 },
258 .vw_device = &vt_consdev,
259 .vw_terminal = &vt_consterm,
260 .vw_kbdmode = K_XLATE,
261 .vw_grabbed = 0,
262 .vw_bell_pitch = VT_BELLPITCH,
263 .vw_bell_duration = VT_BELLDURATION,
264 };
265
266 /* Add to set of consoles. */
267 TERMINAL_DECLARE_EARLY(vt_consterm, vt_termclass, &vt_conswindow);
268
269 /*
270 * Right after kmem is done to allow early drivers to use locking and allocate
271 * memory.
272 */
273 SYSINIT(vt_update_static, SI_SUB_KMEM, SI_ORDER_ANY, vt_update_static,
274 &vt_consdev);
275 /* Delay until all devices attached, to not waste time. */
276 SYSINIT(vt_early_cons, SI_SUB_INT_CONFIG_HOOKS, SI_ORDER_ANY, vt_upgrade,
277 &vt_consdev);
278
279 static bool inside_vt_flush = false;
280 static bool inside_vt_window_switch = false;
281
282 /* Initialize locks/mem depended members. */
283 static void
vt_update_static(void * dummy)284 vt_update_static(void *dummy)
285 {
286
287 if (!vty_enabled(VTY_VT))
288 return;
289 if (main_vd->vd_driver != NULL)
290 printf("VT(%s): %s %ux%u\n", main_vd->vd_driver->vd_name,
291 (main_vd->vd_flags & VDF_TEXTMODE) ? "text" : "resolution",
292 main_vd->vd_width, main_vd->vd_height);
293 else
294 printf("VT: init without driver.\n");
295
296 mtx_init(&main_vd->vd_lock, "vtdev", NULL, MTX_DEF);
297 mtx_init(&main_vd->vd_flush_lock, "vtdev flush", NULL, MTX_DEF);
298 cv_init(&main_vd->vd_winswitch, "vtwswt");
299 }
300
301 static void
vt_schedule_flush(struct vt_device * vd,int ms)302 vt_schedule_flush(struct vt_device *vd, int ms)
303 {
304
305 if (ms <= 0)
306 /* Default to initial value. */
307 ms = 1000 / VT_TIMERFREQ;
308
309 callout_schedule(&vd->vd_timer, hz / (1000 / ms));
310 }
311
312 void
vt_resume_flush_timer(struct vt_window * vw,int ms)313 vt_resume_flush_timer(struct vt_window *vw, int ms)
314 {
315 struct vt_device *vd = vw->vw_device;
316
317 if (vd->vd_curwindow != vw)
318 return;
319
320 if (!(vd->vd_flags & VDF_ASYNC) ||
321 !atomic_cmpset_int(&vd->vd_timer_armed, 0, 1))
322 return;
323
324 vt_schedule_flush(vd, ms);
325 }
326
327 static void
vt_suspend_flush_timer(struct vt_device * vd)328 vt_suspend_flush_timer(struct vt_device *vd)
329 {
330 /*
331 * As long as this function is called locked, callout_stop()
332 * has the same effect like callout_drain() with regard to
333 * preventing the callback function from executing.
334 */
335 VT_LOCK_ASSERT(vd, MA_OWNED);
336
337 if (!(vd->vd_flags & VDF_ASYNC) ||
338 !atomic_cmpset_int(&vd->vd_timer_armed, 1, 0))
339 return;
340
341 callout_stop(&vd->vd_timer);
342 }
343
344 static void
vt_switch_timer(void * arg,int pending)345 vt_switch_timer(void *arg, int pending)
346 {
347
348 (void)vt_late_window_switch((struct vt_window *)arg);
349 }
350
351 static int
vt_save_kbd_mode(struct vt_window * vw,keyboard_t * kbd)352 vt_save_kbd_mode(struct vt_window *vw, keyboard_t *kbd)
353 {
354 int mode, ret;
355
356 mode = 0;
357 ret = kbdd_ioctl(kbd, KDGKBMODE, (caddr_t)&mode);
358 if (ret == ENOIOCTL)
359 ret = ENODEV;
360 if (ret != 0)
361 return (ret);
362
363 vw->vw_kbdmode = mode;
364
365 return (0);
366 }
367
368 static int
vt_update_kbd_mode(struct vt_window * vw,keyboard_t * kbd)369 vt_update_kbd_mode(struct vt_window *vw, keyboard_t *kbd)
370 {
371 int ret;
372
373 ret = kbdd_ioctl(kbd, KDSKBMODE, (caddr_t)&vw->vw_kbdmode);
374 if (ret == ENOIOCTL)
375 ret = ENODEV;
376
377 return (ret);
378 }
379
380 static int
vt_save_kbd_state(struct vt_window * vw,keyboard_t * kbd)381 vt_save_kbd_state(struct vt_window *vw, keyboard_t *kbd)
382 {
383 int state, ret;
384
385 state = 0;
386 ret = kbdd_ioctl(kbd, KDGKBSTATE, (caddr_t)&state);
387 if (ret == ENOIOCTL)
388 ret = ENODEV;
389 if (ret != 0)
390 return (ret);
391
392 vw->vw_kbdstate &= ~LOCK_MASK;
393 vw->vw_kbdstate |= state & LOCK_MASK;
394
395 return (0);
396 }
397
398 static int
vt_update_kbd_state(struct vt_window * vw,keyboard_t * kbd)399 vt_update_kbd_state(struct vt_window *vw, keyboard_t *kbd)
400 {
401 int state, ret;
402
403 state = vw->vw_kbdstate & LOCK_MASK;
404 ret = kbdd_ioctl(kbd, KDSKBSTATE, (caddr_t)&state);
405 if (ret == ENOIOCTL)
406 ret = ENODEV;
407
408 return (ret);
409 }
410
411 static int
vt_save_kbd_leds(struct vt_window * vw,keyboard_t * kbd)412 vt_save_kbd_leds(struct vt_window *vw, keyboard_t *kbd)
413 {
414 int leds, ret;
415
416 leds = 0;
417 ret = kbdd_ioctl(kbd, KDGETLED, (caddr_t)&leds);
418 if (ret == ENOIOCTL)
419 ret = ENODEV;
420 if (ret != 0)
421 return (ret);
422
423 vw->vw_kbdstate &= ~LED_MASK;
424 vw->vw_kbdstate |= leds & LED_MASK;
425
426 return (0);
427 }
428
429 static int
vt_update_kbd_leds(struct vt_window * vw,keyboard_t * kbd)430 vt_update_kbd_leds(struct vt_window *vw, keyboard_t *kbd)
431 {
432 int leds, ret;
433
434 leds = vw->vw_kbdstate & LED_MASK;
435 ret = kbdd_ioctl(kbd, KDSETLED, (caddr_t)&leds);
436 if (ret == ENOIOCTL)
437 ret = ENODEV;
438
439 return (ret);
440 }
441
442 static int
vt_window_preswitch(struct vt_window * vw,struct vt_window * curvw)443 vt_window_preswitch(struct vt_window *vw, struct vt_window *curvw)
444 {
445
446 DPRINTF(40, "%s\n", __func__);
447 curvw->vw_switch_to = vw;
448 /* Set timer to allow switch in case when process hang. */
449 taskqueue_enqueue_timeout(taskqueue_thread, &vw->vw_timeout_task_dead, hz * vt_deadtimer);
450 /* Notify process about vt switch attempt. */
451 DPRINTF(30, "%s: Notify process.\n", __func__);
452 signal_vt_rel(curvw);
453
454 return (0);
455 }
456
457 static int
vt_window_postswitch(struct vt_window * vw)458 vt_window_postswitch(struct vt_window *vw)
459 {
460
461 signal_vt_acq(vw);
462 return (0);
463 }
464
465 /* vt_late_window_switch will do VT switching for regular case. */
466 static int
vt_late_window_switch(struct vt_window * vw)467 vt_late_window_switch(struct vt_window *vw)
468 {
469 struct vt_window *curvw;
470 int ret;
471
472 taskqueue_cancel_timeout(taskqueue_thread, &vw->vw_timeout_task_dead, NULL);
473
474 ret = vt_window_switch(vw);
475 if (ret != 0) {
476 /*
477 * If the switch hasn't happened, then return the VT
478 * to the current owner, if any.
479 */
480 curvw = vw->vw_device->vd_curwindow;
481 if (curvw->vw_smode.mode == VT_PROCESS)
482 (void)vt_window_postswitch(curvw);
483 return (ret);
484 }
485
486 /* Notify owner process about terminal availability. */
487 if (vw->vw_smode.mode == VT_PROCESS) {
488 ret = vt_window_postswitch(vw);
489 }
490 return (ret);
491 }
492
493 /* Switch window. */
494 static int
vt_proc_window_switch(struct vt_window * vw)495 vt_proc_window_switch(struct vt_window *vw)
496 {
497 struct vt_window *curvw;
498 struct vt_device *vd;
499 int ret;
500
501 /* Prevent switching to NULL */
502 if (vw == NULL) {
503 DPRINTF(30, "%s: Cannot switch: vw is NULL.", __func__);
504 return (EINVAL);
505 }
506 vd = vw->vw_device;
507 curvw = vd->vd_curwindow;
508
509 /* Check if virtual terminal is locked */
510 if (curvw->vw_flags & VWF_VTYLOCK)
511 return (EBUSY);
512
513 /* Check if switch already in progress */
514 if (curvw->vw_flags & VWF_SWWAIT_REL) {
515 /* Check if switching to same window */
516 if (curvw->vw_switch_to == vw) {
517 DPRINTF(30, "%s: Switch in progress to same vw.", __func__);
518 return (0); /* success */
519 }
520 DPRINTF(30, "%s: Switch in progress to different vw.", __func__);
521 return (EBUSY);
522 }
523
524 /* Avoid switching to already selected window */
525 if (vw == curvw) {
526 DPRINTF(30, "%s: Cannot switch: vw == curvw.", __func__);
527 return (0); /* success */
528 }
529
530 /*
531 * Early check for an attempt to switch to a non-functional VT.
532 * The same check is done in vt_window_switch(), but it's better
533 * to fail as early as possible to avoid needless pre-switch
534 * actions.
535 */
536 VT_LOCK(vd);
537 if ((vw->vw_flags & (VWF_OPENED|VWF_CONSOLE)) == 0) {
538 VT_UNLOCK(vd);
539 return (EINVAL);
540 }
541 VT_UNLOCK(vd);
542
543 /* Ask current process permission to switch away. */
544 if (curvw->vw_smode.mode == VT_PROCESS) {
545 DPRINTF(30, "%s: VT_PROCESS ", __func__);
546 if (vt_proc_alive(curvw) == FALSE) {
547 DPRINTF(30, "Dead. Cleaning.");
548 /* Dead */
549 } else {
550 DPRINTF(30, "%s: Signaling process.\n", __func__);
551 /* Alive, try to ask him. */
552 ret = vt_window_preswitch(vw, curvw);
553 /* Wait for process answer or timeout. */
554 return (ret);
555 }
556 DPRINTF(30, "\n");
557 }
558
559 ret = vt_late_window_switch(vw);
560 return (ret);
561 }
562
563 /* Switch window ignoring process locking. */
564 static int
vt_window_switch(struct vt_window * vw)565 vt_window_switch(struct vt_window *vw)
566 {
567 struct vt_device *vd = vw->vw_device;
568 struct vt_window *curvw = vd->vd_curwindow;
569 keyboard_t *kbd;
570
571 if (inside_vt_window_switch && KERNEL_PANICKED())
572 return (0);
573
574 inside_vt_window_switch = true;
575
576 if (kdb_active) {
577 /*
578 * When grabbing the console for the debugger, avoid
579 * locks as that can result in deadlock. While this
580 * could use try locks, that wouldn't really make a
581 * difference as there are sufficient barriers in
582 * debugger entry/exit to be equivalent to
583 * successfully try-locking here.
584 */
585 if (!(vw->vw_flags & (VWF_OPENED|VWF_CONSOLE))) {
586 inside_vt_window_switch = false;
587 return (EINVAL);
588 }
589
590 vd->vd_curwindow = vw;
591 vd->vd_flags |= VDF_INVALID;
592 if (vd->vd_driver->vd_postswitch)
593 vd->vd_driver->vd_postswitch(vd);
594 inside_vt_window_switch = false;
595 return (0);
596 }
597
598 VT_LOCK(vd);
599 if (curvw == vw) {
600 /*
601 * Nothing to do, except ensure the driver has the opportunity to
602 * switch to console mode when panicking, making sure the panic
603 * is readable (even when a GUI was using ttyv0).
604 */
605 if ((kdb_active || KERNEL_PANICKED()) &&
606 vd->vd_driver->vd_postswitch)
607 vd->vd_driver->vd_postswitch(vd);
608 inside_vt_window_switch = false;
609 VT_UNLOCK(vd);
610 return (0);
611 }
612 if (!(vw->vw_flags & (VWF_OPENED|VWF_CONSOLE))) {
613 inside_vt_window_switch = false;
614 VT_UNLOCK(vd);
615 return (EINVAL);
616 }
617
618 vt_suspend_flush_timer(vd);
619
620 vd->vd_curwindow = vw;
621 vd->vd_flags |= VDF_INVALID;
622 cv_broadcast(&vd->vd_winswitch);
623 VT_UNLOCK(vd);
624
625 if (vd->vd_driver->vd_postswitch)
626 vd->vd_driver->vd_postswitch(vd);
627
628 vt_resume_flush_timer(vw, 0);
629
630 /* Restore per-window keyboard mode. */
631 mtx_lock(&Giant);
632 if ((kbd = vd->vd_keyboard) != NULL) {
633 if (curvw->vw_kbdmode == K_XLATE)
634 vt_save_kbd_state(curvw, kbd);
635
636 vt_update_kbd_mode(vw, kbd);
637 vt_update_kbd_state(vw, kbd);
638 }
639 mtx_unlock(&Giant);
640 DPRINTF(10, "%s(ttyv%d) done\n", __func__, vw->vw_number);
641
642 inside_vt_window_switch = false;
643 return (0);
644 }
645
646 void
vt_termsize(struct vt_device * vd,struct vt_font * vf,term_pos_t * size)647 vt_termsize(struct vt_device *vd, struct vt_font *vf, term_pos_t *size)
648 {
649
650 size->tp_row = vd->vd_height;
651 if (vt_draw_logo_cpus)
652 size->tp_row -= vt_logo_sprite_height;
653 size->tp_col = vd->vd_width;
654 if (vf != NULL) {
655 size->tp_row = MIN(size->tp_row / vf->vf_height,
656 PIXEL_HEIGHT(VT_FB_MAX_HEIGHT));
657 size->tp_col = MIN(size->tp_col / vf->vf_width,
658 PIXEL_WIDTH(VT_FB_MAX_WIDTH));
659 }
660 }
661
662 static inline void
vt_termrect(struct vt_device * vd,struct vt_font * vf,term_rect_t * rect)663 vt_termrect(struct vt_device *vd, struct vt_font *vf, term_rect_t *rect)
664 {
665
666 rect->tr_begin.tp_row = rect->tr_begin.tp_col = 0;
667 if (vt_draw_logo_cpus)
668 rect->tr_begin.tp_row = vt_logo_sprite_height;
669
670 rect->tr_end.tp_row = vd->vd_height;
671 rect->tr_end.tp_col = vd->vd_width;
672
673 if (vf != NULL) {
674 rect->tr_begin.tp_row =
675 howmany(rect->tr_begin.tp_row, vf->vf_height);
676
677 rect->tr_end.tp_row = MIN(rect->tr_end.tp_row / vf->vf_height,
678 PIXEL_HEIGHT(VT_FB_MAX_HEIGHT));
679 rect->tr_end.tp_col = MIN(rect->tr_end.tp_col / vf->vf_width,
680 PIXEL_WIDTH(VT_FB_MAX_WIDTH));
681 }
682 }
683
684 void
vt_winsize(struct vt_device * vd,struct vt_font * vf,struct winsize * size)685 vt_winsize(struct vt_device *vd, struct vt_font *vf, struct winsize *size)
686 {
687
688 size->ws_ypixel = vd->vd_height;
689 if (vt_draw_logo_cpus)
690 size->ws_ypixel -= vt_logo_sprite_height;
691 size->ws_row = size->ws_ypixel;
692 size->ws_col = size->ws_xpixel = vd->vd_width;
693 if (vf != NULL) {
694 size->ws_row = MIN(size->ws_row / vf->vf_height,
695 PIXEL_HEIGHT(VT_FB_MAX_HEIGHT));
696 size->ws_col = MIN(size->ws_col / vf->vf_width,
697 PIXEL_WIDTH(VT_FB_MAX_WIDTH));
698 }
699 }
700
701 void
vt_compute_drawable_area(struct vt_window * vw)702 vt_compute_drawable_area(struct vt_window *vw)
703 {
704 struct vt_device *vd;
705 struct vt_font *vf;
706 vt_axis_t height;
707
708 vd = vw->vw_device;
709
710 if (vw->vw_font == NULL) {
711 vw->vw_draw_area.tr_begin.tp_col = 0;
712 vw->vw_draw_area.tr_begin.tp_row = 0;
713 if (vt_draw_logo_cpus)
714 vw->vw_draw_area.tr_begin.tp_row = vt_logo_sprite_height;
715 vw->vw_draw_area.tr_end.tp_col = vd->vd_width;
716 vw->vw_draw_area.tr_end.tp_row = vd->vd_height;
717 return;
718 }
719
720 vf = vw->vw_font;
721
722 /*
723 * Compute the drawable area, so that the text is centered on
724 * the screen.
725 */
726
727 height = vd->vd_height;
728 if (vt_draw_logo_cpus)
729 height -= vt_logo_sprite_height;
730 vw->vw_draw_area.tr_begin.tp_col = (vd->vd_width % vf->vf_width) / 2;
731 vw->vw_draw_area.tr_begin.tp_row = (height % vf->vf_height) / 2;
732 if (vt_draw_logo_cpus)
733 vw->vw_draw_area.tr_begin.tp_row += vt_logo_sprite_height;
734 vw->vw_draw_area.tr_end.tp_col = vw->vw_draw_area.tr_begin.tp_col +
735 rounddown(vd->vd_width, vf->vf_width);
736 vw->vw_draw_area.tr_end.tp_row = vw->vw_draw_area.tr_begin.tp_row +
737 rounddown(height, vf->vf_height);
738 }
739
740 static void
vt_scroll(struct vt_window * vw,int offset,int whence)741 vt_scroll(struct vt_window *vw, int offset, int whence)
742 {
743 int diff;
744 term_pos_t size;
745
746 if ((vw->vw_flags & VWF_SCROLL) == 0)
747 return;
748
749 vt_termsize(vw->vw_device, vw->vw_font, &size);
750
751 diff = vthistory_seek(&vw->vw_buf, offset, whence);
752 if (diff)
753 vw->vw_device->vd_flags |= VDF_INVALID;
754 vt_resume_flush_timer(vw, 0);
755 }
756
757 static int
vt_machine_kbdevent(struct vt_device * vd,int c)758 vt_machine_kbdevent(struct vt_device *vd, int c)
759 {
760
761 switch (c) {
762 case SPCLKEY | DBG: /* kbdmap(5) keyword `debug`. */
763 if (vt_kbd_debug) {
764 kdb_enter(KDB_WHY_BREAK, "manual escape to debugger");
765 #if VT_ALT_TO_ESC_HACK
766 /*
767 * There's an unfortunate conflict between SPCLKEY|DBG
768 * and VT_ALT_TO_ESC_HACK. Just assume they didn't mean
769 * it if we got to here.
770 */
771 vd->vd_kbstate &= ~ALKED;
772 #endif
773 }
774 return (1);
775 case SPCLKEY | HALT: /* kbdmap(5) keyword `halt`. */
776 if (vt_kbd_halt)
777 shutdown_nice(RB_HALT);
778 return (1);
779 case SPCLKEY | PASTE: /* kbdmap(5) keyword `paste`. */
780 #ifndef SC_NO_CUTPASTE
781 /* Insert text from cut-paste buffer. */
782 vt_mouse_paste();
783 #endif
784 break;
785 case SPCLKEY | PDWN: /* kbdmap(5) keyword `pdwn`. */
786 if (vt_kbd_poweroff)
787 shutdown_nice(RB_HALT|RB_POWEROFF);
788 return (1);
789 case SPCLKEY | PNC: /* kbdmap(5) keyword `panic`. */
790 /*
791 * Request to immediate panic if sysctl
792 * kern.vt.enable_panic_key allow it.
793 */
794 if (vt_kbd_panic)
795 panic("Forced by the panic key");
796 return (1);
797 case SPCLKEY | RBT: /* kbdmap(5) keyword `boot`. */
798 if (vt_kbd_reboot)
799 shutdown_nice(RB_AUTOBOOT);
800 return (1);
801 case SPCLKEY | SPSC: /* kbdmap(5) keyword `spsc`. */
802 /* Force activatation/deactivation of the screen saver. */
803 /* TODO */
804 return (1);
805 case SPCLKEY | STBY: /* XXX Not present in kbdcontrol parser. */
806 /* Put machine into Stand-By mode. */
807 power_pm_suspend(POWER_SLEEP_STATE_STANDBY);
808 return (1);
809 case SPCLKEY | SUSP: /* kbdmap(5) keyword `susp`. */
810 /* Suspend machine. */
811 power_pm_suspend(POWER_SLEEP_STATE_SUSPEND);
812 return (1);
813 }
814
815 return (0);
816 }
817
818 static void
vt_scrollmode_kbdevent(struct vt_window * vw,int c,int console)819 vt_scrollmode_kbdevent(struct vt_window *vw, int c, int console)
820 {
821 struct vt_device *vd;
822 term_pos_t size;
823
824 vd = vw->vw_device;
825 /* Only special keys handled in ScrollLock mode */
826 if ((c & SPCLKEY) == 0)
827 return;
828
829 c &= ~SPCLKEY;
830
831 if (console == 0) {
832 if (c >= F_SCR && c <= MIN(L_SCR, F_SCR + VT_MAXWINDOWS - 1)) {
833 vw = vd->vd_windows[c - F_SCR];
834 vt_proc_window_switch(vw);
835 return;
836 }
837 VT_LOCK(vd);
838 }
839
840 switch (c) {
841 case SLK: {
842 /* Turn scrolling off. */
843 vt_scroll(vw, 0, VHS_END);
844 VTBUF_SLCK_DISABLE(&vw->vw_buf);
845 vw->vw_flags &= ~VWF_SCROLL;
846 break;
847 }
848 case FKEY | F(49): /* Home key. */
849 vt_scroll(vw, 0, VHS_SET);
850 break;
851 case FKEY | F(50): /* Arrow up. */
852 vt_scroll(vw, -1, VHS_CUR);
853 break;
854 case FKEY | F(51): /* Page up. */
855 vt_termsize(vd, vw->vw_font, &size);
856 vt_scroll(vw, -size.tp_row, VHS_CUR);
857 break;
858 case FKEY | F(57): /* End key. */
859 vt_scroll(vw, 0, VHS_END);
860 break;
861 case FKEY | F(58): /* Arrow down. */
862 vt_scroll(vw, 1, VHS_CUR);
863 break;
864 case FKEY | F(59): /* Page down. */
865 vt_termsize(vd, vw->vw_font, &size);
866 vt_scroll(vw, size.tp_row, VHS_CUR);
867 break;
868 }
869
870 if (console == 0)
871 VT_UNLOCK(vd);
872 }
873
874 static int
vt_processkey(keyboard_t * kbd,struct vt_device * vd,int c)875 vt_processkey(keyboard_t *kbd, struct vt_device *vd, int c)
876 {
877 struct vt_window *vw = vd->vd_curwindow;
878
879 random_harvest_queue(&c, sizeof(c), RANDOM_KEYBOARD);
880 #if VT_ALT_TO_ESC_HACK
881 if (c & RELKEY) {
882 switch (c & ~RELKEY) {
883 case (SPCLKEY | RALT):
884 if (vt_enable_altgr != 0)
885 break;
886 case (SPCLKEY | LALT):
887 vd->vd_kbstate &= ~ALKED;
888 }
889 /* Other keys ignored for RELKEY event. */
890 return (0);
891 } else {
892 switch (c & ~RELKEY) {
893 case (SPCLKEY | RALT):
894 if (vt_enable_altgr != 0)
895 break;
896 case (SPCLKEY | LALT):
897 vd->vd_kbstate |= ALKED;
898 }
899 }
900 #else
901 if (c & RELKEY)
902 /* Other keys ignored for RELKEY event. */
903 return (0);
904 #endif
905
906 if (vt_machine_kbdevent(vd, c))
907 return (0);
908
909 if (vw->vw_flags & VWF_SCROLL) {
910 vt_scrollmode_kbdevent(vw, c, 0/* Not a console */);
911 /* Scroll mode keys handled, nothing to do more. */
912 return (0);
913 }
914
915 if (c & SPCLKEY) {
916 c &= ~SPCLKEY;
917
918 if (c >= F_SCR && c <= MIN(L_SCR, F_SCR + VT_MAXWINDOWS - 1)) {
919 vw = vd->vd_windows[c - F_SCR];
920 vt_proc_window_switch(vw);
921 return (0);
922 }
923
924 switch (c) {
925 case NEXT:
926 /* Switch to next VT. */
927 c = (vw->vw_number + 1) % VT_MAXWINDOWS;
928 vw = vd->vd_windows[c];
929 vt_proc_window_switch(vw);
930 return (0);
931 case PREV:
932 /* Switch to previous VT. */
933 c = (vw->vw_number + VT_MAXWINDOWS - 1) % VT_MAXWINDOWS;
934 vw = vd->vd_windows[c];
935 vt_proc_window_switch(vw);
936 return (0);
937 case SLK: {
938 vt_save_kbd_state(vw, kbd);
939 VT_LOCK(vd);
940 if (vw->vw_kbdstate & SLKED) {
941 /* Turn scrolling on. */
942 vw->vw_flags |= VWF_SCROLL;
943 VTBUF_SLCK_ENABLE(&vw->vw_buf);
944 } else {
945 /* Turn scrolling off. */
946 vw->vw_flags &= ~VWF_SCROLL;
947 VTBUF_SLCK_DISABLE(&vw->vw_buf);
948 vt_scroll(vw, 0, VHS_END);
949 }
950 VT_UNLOCK(vd);
951 break;
952 }
953 case FKEY | F(1): case FKEY | F(2): case FKEY | F(3):
954 case FKEY | F(4): case FKEY | F(5): case FKEY | F(6):
955 case FKEY | F(7): case FKEY | F(8): case FKEY | F(9):
956 case FKEY | F(10): case FKEY | F(11): case FKEY | F(12):
957 /* F1 through F12 keys. */
958 terminal_input_special(vw->vw_terminal,
959 TKEY_F1 + c - (FKEY | F(1)));
960 break;
961 case FKEY | F(49): /* Home key. */
962 terminal_input_special(vw->vw_terminal, TKEY_HOME);
963 break;
964 case FKEY | F(50): /* Arrow up. */
965 terminal_input_special(vw->vw_terminal, TKEY_UP);
966 break;
967 case FKEY | F(51): /* Page up. */
968 terminal_input_special(vw->vw_terminal, TKEY_PAGE_UP);
969 break;
970 case FKEY | F(53): /* Arrow left. */
971 terminal_input_special(vw->vw_terminal, TKEY_LEFT);
972 break;
973 case FKEY | F(55): /* Arrow right. */
974 terminal_input_special(vw->vw_terminal, TKEY_RIGHT);
975 break;
976 case FKEY | F(57): /* End key. */
977 terminal_input_special(vw->vw_terminal, TKEY_END);
978 break;
979 case FKEY | F(58): /* Arrow down. */
980 terminal_input_special(vw->vw_terminal, TKEY_DOWN);
981 break;
982 case FKEY | F(59): /* Page down. */
983 terminal_input_special(vw->vw_terminal, TKEY_PAGE_DOWN);
984 break;
985 case FKEY | F(60): /* Insert key. */
986 terminal_input_special(vw->vw_terminal, TKEY_INSERT);
987 break;
988 case FKEY | F(61): /* Delete key. */
989 terminal_input_special(vw->vw_terminal, TKEY_DELETE);
990 break;
991 }
992 } else if (KEYFLAGS(c) == 0) {
993 /* Don't do UTF-8 conversion when doing raw mode. */
994 if (vw->vw_kbdmode == K_XLATE) {
995 #if VT_ALT_TO_ESC_HACK
996 if (vd->vd_kbstate & ALKED) {
997 /*
998 * Prepend ESC sequence if one of ALT keys down.
999 */
1000 terminal_input_char(vw->vw_terminal, 0x1b);
1001 }
1002 #endif
1003 #if defined(KDB)
1004 kdb_alt_break(c, &vd->vd_altbrk);
1005 #endif
1006 terminal_input_char(vw->vw_terminal, KEYCHAR(c));
1007 } else
1008 terminal_input_raw(vw->vw_terminal, c);
1009 }
1010 return (0);
1011 }
1012
1013 static int
vt_kbdevent(keyboard_t * kbd,int event,void * arg)1014 vt_kbdevent(keyboard_t *kbd, int event, void *arg)
1015 {
1016 struct vt_device *vd = arg;
1017 int c;
1018
1019 switch (event) {
1020 case KBDIO_KEYINPUT:
1021 break;
1022 case KBDIO_UNLOADING:
1023 mtx_lock(&Giant);
1024 vd->vd_keyboard = NULL;
1025 kbd_release(kbd, (void *)vd);
1026 mtx_unlock(&Giant);
1027 return (0);
1028 default:
1029 return (EINVAL);
1030 }
1031
1032 while ((c = kbdd_read_char(kbd, 0)) != NOKEY)
1033 vt_processkey(kbd, vd, c);
1034
1035 return (0);
1036 }
1037
1038 static int
vt_allocate_keyboard(struct vt_device * vd)1039 vt_allocate_keyboard(struct vt_device *vd)
1040 {
1041 int grabbed, i, idx0, idx;
1042 keyboard_t *k0, *k;
1043 keyboard_info_t ki;
1044
1045 /*
1046 * If vt_upgrade() happens while the console is grabbed, we are
1047 * potentially going to switch keyboard devices while the keyboard is in
1048 * use. Unwind the grabbing of the current keyboard first, then we will
1049 * re-grab the new keyboard below, before we return.
1050 */
1051 if (vd->vd_curwindow == &vt_conswindow) {
1052 grabbed = vd->vd_curwindow->vw_grabbed;
1053 for (i = 0; i < grabbed; ++i)
1054 vtterm_cnungrab_noswitch(vd, vd->vd_curwindow);
1055 }
1056
1057 idx0 = kbd_allocate("kbdmux", -1, vd, vt_kbdevent, vd);
1058 if (idx0 >= 0) {
1059 DPRINTF(20, "%s: kbdmux allocated, idx = %d\n", __func__, idx0);
1060 k0 = kbd_get_keyboard(idx0);
1061
1062 for (idx = kbd_find_keyboard2("*", -1, 0);
1063 idx != -1;
1064 idx = kbd_find_keyboard2("*", -1, idx + 1)) {
1065 k = kbd_get_keyboard(idx);
1066
1067 if (idx == idx0 || KBD_IS_BUSY(k))
1068 continue;
1069
1070 bzero(&ki, sizeof(ki));
1071 strncpy(ki.kb_name, k->kb_name, sizeof(ki.kb_name));
1072 ki.kb_name[sizeof(ki.kb_name) - 1] = '\0';
1073 ki.kb_unit = k->kb_unit;
1074
1075 kbdd_ioctl(k0, KBADDKBD, (caddr_t) &ki);
1076 }
1077 } else {
1078 DPRINTF(20, "%s: no kbdmux allocated\n", __func__);
1079 idx0 = kbd_allocate("*", -1, vd, vt_kbdevent, vd);
1080 if (idx0 < 0) {
1081 DPRINTF(10, "%s: No keyboard found.\n", __func__);
1082 return (-1);
1083 }
1084 k0 = kbd_get_keyboard(idx0);
1085 }
1086 vd->vd_keyboard = k0;
1087 DPRINTF(20, "%s: vd_keyboard = %d\n", __func__,
1088 vd->vd_keyboard->kb_index);
1089
1090 if (vd->vd_curwindow == &vt_conswindow) {
1091 for (i = 0; i < grabbed; ++i)
1092 vtterm_cngrab_noswitch(vd, vd->vd_curwindow);
1093 }
1094
1095 return (idx0);
1096 }
1097
1098 #define DEVCTL_LEN 64
1099 static void
vtterm_devctl(bool enabled,bool hushed,int hz,sbintime_t duration)1100 vtterm_devctl(bool enabled, bool hushed, int hz, sbintime_t duration)
1101 {
1102 struct sbuf sb;
1103 char *buf;
1104
1105 buf = malloc(DEVCTL_LEN, M_VT, M_NOWAIT);
1106 if (buf == NULL)
1107 return;
1108 sbuf_new(&sb, buf, DEVCTL_LEN, SBUF_FIXEDLEN);
1109 sbuf_printf(&sb, "enabled=%s hushed=%s hz=%d duration_ms=%d",
1110 enabled ? "true" : "false", hushed ? "true" : "false",
1111 hz, (int)(duration / SBT_1MS));
1112 sbuf_finish(&sb);
1113 if (sbuf_error(&sb) == 0)
1114 devctl_notify("VT", "BELL", "RING", sbuf_data(&sb));
1115 sbuf_delete(&sb);
1116 free(buf, M_VT);
1117 }
1118
1119 static void
vtterm_bell(struct terminal * tm)1120 vtterm_bell(struct terminal *tm)
1121 {
1122 struct vt_window *vw = tm->tm_softc;
1123 struct vt_device *vd = vw->vw_device;
1124
1125 vtterm_devctl(vt_enable_bell, vd->vd_flags & VDF_QUIET_BELL,
1126 vw->vw_bell_pitch, vw->vw_bell_duration);
1127
1128 if (!vt_enable_bell)
1129 return;
1130
1131 if (vd->vd_flags & VDF_QUIET_BELL)
1132 return;
1133
1134 if (vw->vw_bell_pitch == 0 ||
1135 vw->vw_bell_duration == 0)
1136 return;
1137
1138 sysbeep(vw->vw_bell_pitch, vw->vw_bell_duration);
1139 }
1140
1141 /*
1142 * Beep with user-provided frequency and duration as specified by a KDMKTONE
1143 * ioctl (compatible with Linux). The frequency is specified as a 8254 PIT
1144 * divisor for a 1.19MHz clock.
1145 *
1146 * See https://tldp.org/LDP/lpg/node83.html.
1147 */
1148 static void
vtterm_beep(struct terminal * tm,u_int param)1149 vtterm_beep(struct terminal *tm, u_int param)
1150 {
1151 u_int freq;
1152 sbintime_t period;
1153 struct vt_window *vw = tm->tm_softc;
1154 struct vt_device *vd = vw->vw_device;
1155
1156 if ((param == 0) || ((param & 0xffff) == 0)) {
1157 vtterm_bell(tm);
1158 return;
1159 }
1160
1161 /* XXX period unit is supposed to be "timer ticks." */
1162 period = ((param >> 16) & 0xffff) * SBT_1MS;
1163 freq = 1193182 / (param & 0xffff);
1164
1165 vtterm_devctl(vt_enable_bell, vd->vd_flags & VDF_QUIET_BELL,
1166 freq, period);
1167
1168 if (!vt_enable_bell)
1169 return;
1170
1171 sysbeep(freq, period);
1172 }
1173
1174 static void
vtterm_cursor(struct terminal * tm,const term_pos_t * p)1175 vtterm_cursor(struct terminal *tm, const term_pos_t *p)
1176 {
1177 struct vt_window *vw = tm->tm_softc;
1178
1179 vtbuf_cursor_position(&vw->vw_buf, p);
1180 }
1181
1182 static void
vtterm_putchar(struct terminal * tm,const term_pos_t * p,term_char_t c)1183 vtterm_putchar(struct terminal *tm, const term_pos_t *p, term_char_t c)
1184 {
1185 struct vt_window *vw = tm->tm_softc;
1186
1187 vtbuf_putchar(&vw->vw_buf, p, c);
1188 }
1189
1190 static void
vtterm_fill(struct terminal * tm,const term_rect_t * r,term_char_t c)1191 vtterm_fill(struct terminal *tm, const term_rect_t *r, term_char_t c)
1192 {
1193 struct vt_window *vw = tm->tm_softc;
1194
1195 vtbuf_fill(&vw->vw_buf, r, c);
1196 }
1197
1198 static void
vtterm_copy(struct terminal * tm,const term_rect_t * r,const term_pos_t * p)1199 vtterm_copy(struct terminal *tm, const term_rect_t *r,
1200 const term_pos_t *p)
1201 {
1202 struct vt_window *vw = tm->tm_softc;
1203
1204 vtbuf_copy(&vw->vw_buf, r, p);
1205 }
1206
1207 static void
vtterm_param(struct terminal * tm,int cmd,unsigned int arg)1208 vtterm_param(struct terminal *tm, int cmd, unsigned int arg)
1209 {
1210 struct vt_window *vw = tm->tm_softc;
1211
1212 switch (cmd) {
1213 case TP_SETLOCALCURSOR:
1214 /*
1215 * 0 means normal (usually block), 1 means hidden, and
1216 * 2 means blinking (always block) for compatibility with
1217 * syscons. We don't support any changes except hiding,
1218 * so must map 2 to 0.
1219 */
1220 arg = (arg == 1) ? 0 : 1;
1221 /* FALLTHROUGH */
1222 case TP_SHOWCURSOR:
1223 vtbuf_cursor_visibility(&vw->vw_buf, arg);
1224 vt_resume_flush_timer(vw, 0);
1225 break;
1226 case TP_MOUSE:
1227 vw->vw_mouse_level = arg;
1228 break;
1229 case TP_SETBELLPD:
1230 vw->vw_bell_pitch = TP_SETBELLPD_PITCH(arg);
1231 vw->vw_bell_duration =
1232 TICKS_2_MSEC(TP_SETBELLPD_DURATION(arg)) * SBT_1MS;
1233 break;
1234 }
1235 }
1236
1237 void
vt_determine_colors(term_char_t c,int cursor,term_color_t * fg,term_color_t * bg)1238 vt_determine_colors(term_char_t c, int cursor,
1239 term_color_t *fg, term_color_t *bg)
1240 {
1241 term_color_t tmp;
1242 int invert;
1243
1244 invert = 0;
1245
1246 *fg = TCHAR_FGCOLOR(c);
1247 if (TCHAR_FORMAT(c) & TF_BOLD)
1248 *fg = TCOLOR_LIGHT(*fg);
1249 *bg = TCHAR_BGCOLOR(c);
1250 if (TCHAR_FORMAT(c) & TF_BLINK)
1251 *bg = TCOLOR_LIGHT(*bg);
1252
1253 if (TCHAR_FORMAT(c) & TF_REVERSE)
1254 invert ^= 1;
1255 if (cursor)
1256 invert ^= 1;
1257
1258 if (invert) {
1259 tmp = *fg;
1260 *fg = *bg;
1261 *bg = tmp;
1262 }
1263 }
1264
1265 #ifndef SC_NO_CUTPASTE
1266 int
vt_is_cursor_in_area(const struct vt_device * vd,const term_rect_t * area)1267 vt_is_cursor_in_area(const struct vt_device *vd, const term_rect_t *area)
1268 {
1269 unsigned int mx, my;
1270
1271 /*
1272 * We use the cursor position saved during the current refresh,
1273 * in case the cursor moved since.
1274 */
1275 mx = vd->vd_mx_drawn + vd->vd_curwindow->vw_draw_area.tr_begin.tp_col;
1276 my = vd->vd_my_drawn + vd->vd_curwindow->vw_draw_area.tr_begin.tp_row;
1277
1278 if (mx >= area->tr_end.tp_col ||
1279 mx + vd->vd_mcursor->width <= area->tr_begin.tp_col ||
1280 my >= area->tr_end.tp_row ||
1281 my + vd->vd_mcursor->height <= area->tr_begin.tp_row)
1282 return (0);
1283 return (1);
1284 }
1285
1286 static void
vt_mark_mouse_position_as_dirty(struct vt_device * vd,int locked)1287 vt_mark_mouse_position_as_dirty(struct vt_device *vd, int locked)
1288 {
1289 term_rect_t area;
1290 struct vt_window *vw;
1291 struct vt_font *vf;
1292 int x, y;
1293
1294 vw = vd->vd_curwindow;
1295 vf = vw->vw_font;
1296
1297 x = vd->vd_mx_drawn;
1298 y = vd->vd_my_drawn;
1299
1300 if (vf != NULL) {
1301 area.tr_begin.tp_col = x / vf->vf_width;
1302 area.tr_begin.tp_row = y / vf->vf_height;
1303 area.tr_end.tp_col =
1304 ((x + vd->vd_mcursor->width) / vf->vf_width) + 1;
1305 area.tr_end.tp_row =
1306 ((y + vd->vd_mcursor->height) / vf->vf_height) + 1;
1307 } else {
1308 /*
1309 * No font loaded (ie. vt_vga operating in textmode).
1310 *
1311 * FIXME: This fake area needs to be revisited once the
1312 * mouse cursor is supported in vt_vga's textmode.
1313 */
1314 area.tr_begin.tp_col = x;
1315 area.tr_begin.tp_row = y;
1316 area.tr_end.tp_col = x + 2;
1317 area.tr_end.tp_row = y + 2;
1318 }
1319
1320 if (!locked)
1321 vtbuf_lock(&vw->vw_buf);
1322 if (vd->vd_driver->vd_invalidate_text)
1323 vd->vd_driver->vd_invalidate_text(vd, &area);
1324 vtbuf_dirty(&vw->vw_buf, &area);
1325 if (!locked)
1326 vtbuf_unlock(&vw->vw_buf);
1327 }
1328 #endif
1329
1330 static void
vt_set_border(struct vt_device * vd,const term_rect_t * area,term_color_t c)1331 vt_set_border(struct vt_device *vd, const term_rect_t *area,
1332 term_color_t c)
1333 {
1334 vd_drawrect_t *drawrect = vd->vd_driver->vd_drawrect;
1335
1336 if (drawrect == NULL)
1337 return;
1338
1339 /* Top bar */
1340 if (area->tr_begin.tp_row > 0)
1341 drawrect(vd, 0, 0, vd->vd_width - 1,
1342 area->tr_begin.tp_row - 1, 1, c);
1343
1344 /* Left bar */
1345 if (area->tr_begin.tp_col > 0)
1346 drawrect(vd, 0, area->tr_begin.tp_row,
1347 area->tr_begin.tp_col - 1, area->tr_end.tp_row - 1, 1, c);
1348
1349 /* Right bar */
1350 if (area->tr_end.tp_col < vd->vd_width)
1351 drawrect(vd, area->tr_end.tp_col, area->tr_begin.tp_row,
1352 vd->vd_width - 1, area->tr_end.tp_row - 1, 1, c);
1353
1354 /* Bottom bar */
1355 if (area->tr_end.tp_row < vd->vd_height)
1356 drawrect(vd, 0, area->tr_end.tp_row, vd->vd_width - 1,
1357 vd->vd_height - 1, 1, c);
1358 }
1359
1360 static void
vt_flush_to_buffer(struct vt_device * vd,const struct vt_window * vw,const term_rect_t * area)1361 vt_flush_to_buffer(struct vt_device *vd,
1362 const struct vt_window *vw, const term_rect_t *area)
1363 {
1364 unsigned int col, row;
1365 term_char_t c;
1366 term_color_t fg, bg;
1367 size_t z;
1368
1369 for (row = area->tr_begin.tp_row; row < area->tr_end.tp_row; ++row) {
1370 for (col = area->tr_begin.tp_col; col < area->tr_end.tp_col;
1371 ++col) {
1372 z = row * PIXEL_WIDTH(VT_FB_MAX_WIDTH) + col;
1373 if (z >= PIXEL_HEIGHT(VT_FB_MAX_HEIGHT) *
1374 PIXEL_WIDTH(VT_FB_MAX_WIDTH))
1375 continue;
1376
1377 c = VTBUF_GET_FIELD(&vw->vw_buf, row, col);
1378 vt_determine_colors(c,
1379 VTBUF_ISCURSOR(&vw->vw_buf, row, col), &fg, &bg);
1380
1381 if (vd->vd_drawn && (vd->vd_drawn[z] == c) &&
1382 vd->vd_drawnfg && (vd->vd_drawnfg[z] == fg) &&
1383 vd->vd_drawnbg && (vd->vd_drawnbg[z] == bg)) {
1384 vd->vd_pos_to_flush[z] = false;
1385 continue;
1386 }
1387
1388 vd->vd_pos_to_flush[z] = true;
1389
1390 if (vd->vd_drawn)
1391 vd->vd_drawn[z] = c;
1392 if (vd->vd_drawnfg)
1393 vd->vd_drawnfg[z] = fg;
1394 if (vd->vd_drawnbg)
1395 vd->vd_drawnbg[z] = bg;
1396 }
1397 }
1398 }
1399
1400 static void
vt_bitblt_buffer(struct vt_device * vd,const struct vt_window * vw,const term_rect_t * area)1401 vt_bitblt_buffer(struct vt_device *vd, const struct vt_window *vw,
1402 const term_rect_t *area)
1403 {
1404 unsigned int col, row, x, y;
1405 struct vt_font *vf;
1406 term_char_t c;
1407 term_color_t fg, bg;
1408 const uint8_t *pattern;
1409 size_t z;
1410
1411 vf = vw->vw_font;
1412
1413 for (row = area->tr_begin.tp_row; row < area->tr_end.tp_row; ++row) {
1414 for (col = area->tr_begin.tp_col; col < area->tr_end.tp_col;
1415 ++col) {
1416 x = col * vf->vf_width +
1417 vw->vw_draw_area.tr_begin.tp_col;
1418 y = row * vf->vf_height +
1419 vw->vw_draw_area.tr_begin.tp_row;
1420
1421 z = row * PIXEL_WIDTH(VT_FB_MAX_WIDTH) + col;
1422 if (z >= PIXEL_HEIGHT(VT_FB_MAX_HEIGHT) *
1423 PIXEL_WIDTH(VT_FB_MAX_WIDTH))
1424 continue;
1425 if (!vd->vd_pos_to_flush[z])
1426 continue;
1427
1428 c = vd->vd_drawn[z];
1429 fg = vd->vd_drawnfg[z];
1430 bg = vd->vd_drawnbg[z];
1431
1432 pattern = vtfont_lookup(vf, c);
1433 vd->vd_driver->vd_bitblt_bmp(vd, vw,
1434 pattern, NULL, vf->vf_width, vf->vf_height,
1435 x, y, fg, bg);
1436 }
1437 }
1438
1439 #ifndef SC_NO_CUTPASTE
1440 if (!vd->vd_mshown)
1441 return;
1442
1443 term_rect_t drawn_area;
1444
1445 drawn_area.tr_begin.tp_col = area->tr_begin.tp_col * vf->vf_width;
1446 drawn_area.tr_begin.tp_row = area->tr_begin.tp_row * vf->vf_height;
1447 drawn_area.tr_end.tp_col = area->tr_end.tp_col * vf->vf_width;
1448 drawn_area.tr_end.tp_row = area->tr_end.tp_row * vf->vf_height;
1449
1450 if (vt_is_cursor_in_area(vd, &drawn_area)) {
1451 vd->vd_driver->vd_bitblt_bmp(vd, vw,
1452 vd->vd_mcursor->map, vd->vd_mcursor->mask,
1453 vd->vd_mcursor->width, vd->vd_mcursor->height,
1454 vd->vd_mx_drawn + vw->vw_draw_area.tr_begin.tp_col,
1455 vd->vd_my_drawn + vw->vw_draw_area.tr_begin.tp_row,
1456 vd->vd_mcursor_fg, vd->vd_mcursor_bg);
1457 }
1458 #endif
1459 }
1460
1461 static void
vt_draw_decorations(struct vt_device * vd)1462 vt_draw_decorations(struct vt_device *vd)
1463 {
1464 struct vt_window *vw;
1465 const teken_attr_t *a;
1466
1467 vw = vd->vd_curwindow;
1468
1469 a = teken_get_curattr(&vw->vw_terminal->tm_emulator);
1470 vt_set_border(vd, &vw->vw_draw_area, a->ta_bgcolor);
1471
1472 if (vt_draw_logo_cpus)
1473 vtterm_draw_cpu_logos(vd);
1474 }
1475
1476 static int
vt_flush(struct vt_device * vd)1477 vt_flush(struct vt_device *vd)
1478 {
1479 struct vt_window *vw;
1480 struct vt_font *vf;
1481 term_rect_t tarea;
1482 #ifndef SC_NO_CUTPASTE
1483 int cursor_was_shown, cursor_moved;
1484 #endif
1485 bool needs_refresh;
1486
1487 if (inside_vt_flush && KERNEL_PANICKED())
1488 return (0);
1489
1490 vw = vd->vd_curwindow;
1491 if (vw == NULL)
1492 return (0);
1493
1494 if (vd->vd_flags & VDF_SPLASH || vw->vw_flags & VWF_BUSY)
1495 return (0);
1496
1497 vf = vw->vw_font;
1498 if (((vd->vd_flags & VDF_TEXTMODE) == 0) && (vf == NULL))
1499 return (0);
1500
1501 VT_FLUSH_LOCK(vd);
1502
1503 vtbuf_lock(&vw->vw_buf);
1504 inside_vt_flush = true;
1505
1506 #ifndef SC_NO_CUTPASTE
1507 cursor_was_shown = vd->vd_mshown;
1508 cursor_moved = (vd->vd_mx != vd->vd_mx_drawn ||
1509 vd->vd_my != vd->vd_my_drawn);
1510
1511 /* Check if the cursor should be displayed or not. */
1512 if ((vd->vd_flags & VDF_MOUSECURSOR) && /* Mouse support enabled. */
1513 !(vw->vw_flags & VWF_MOUSE_HIDE) && /* Cursor displayed. */
1514 !kdb_active && !KERNEL_PANICKED()) { /* DDB inactive. */
1515 vd->vd_mshown = 1;
1516 } else {
1517 vd->vd_mshown = 0;
1518 }
1519
1520 /*
1521 * If the cursor changed display state or moved, we must mark
1522 * the old position as dirty, so that it's erased.
1523 */
1524 if (cursor_was_shown != vd->vd_mshown ||
1525 (vd->vd_mshown && cursor_moved))
1526 vt_mark_mouse_position_as_dirty(vd, true);
1527
1528 /*
1529 * Save position of the mouse cursor. It's used by backends to
1530 * know where to draw the cursor and during the next refresh to
1531 * erase the previous position.
1532 */
1533 vd->vd_mx_drawn = vd->vd_mx;
1534 vd->vd_my_drawn = vd->vd_my;
1535
1536 /*
1537 * If the cursor is displayed and has moved since last refresh,
1538 * mark the new position as dirty.
1539 */
1540 if (vd->vd_mshown && cursor_moved)
1541 vt_mark_mouse_position_as_dirty(vd, true);
1542 #endif
1543
1544 vtbuf_undirty(&vw->vw_buf, &tarea);
1545
1546 /* Force a full redraw when the screen contents might be invalid. */
1547 needs_refresh = false;
1548 if (vd->vd_flags & (VDF_INVALID | VDF_SUSPENDED)) {
1549 needs_refresh = true;
1550 vd->vd_flags &= ~VDF_INVALID;
1551
1552 vt_termrect(vd, vf, &tarea);
1553 if (vd->vd_driver->vd_invalidate_text)
1554 vd->vd_driver->vd_invalidate_text(vd, &tarea);
1555 }
1556
1557 if (tarea.tr_begin.tp_col < tarea.tr_end.tp_col) {
1558 if (vd->vd_driver->vd_bitblt_after_vtbuf_unlock) {
1559 /*
1560 * When `vd_bitblt_after_vtbuf_unlock` is set to true,
1561 * we first remember the characters to redraw. They are
1562 * already copied to the `vd_drawn` arrays.
1563 *
1564 * We then unlock vt_buf and proceed with the actual
1565 * drawing using the backend driver.
1566 */
1567 vt_flush_to_buffer(vd, vw, &tarea);
1568 vtbuf_unlock(&vw->vw_buf);
1569 vt_bitblt_buffer(vd, vw, &tarea);
1570
1571 if (needs_refresh)
1572 vt_draw_decorations(vd);
1573
1574 /*
1575 * We can reset `inside_vt_flush` after unlocking vtbuf
1576 * here because we also hold vt_flush_lock in this code
1577 * path.
1578 */
1579 inside_vt_flush = false;
1580 } else {
1581 /*
1582 * When `vd_bitblt_after_vtbuf_unlock` is false, we use
1583 * the backend's `vd_bitblt_text` callback directly.
1584 */
1585 vd->vd_driver->vd_bitblt_text(vd, vw, &tarea);
1586
1587 if (needs_refresh)
1588 vt_draw_decorations(vd);
1589
1590 inside_vt_flush = false;
1591 vtbuf_unlock(&vw->vw_buf);
1592 }
1593
1594 VT_FLUSH_UNLOCK(vd);
1595
1596 return (1);
1597 }
1598
1599 inside_vt_flush = false;
1600 vtbuf_unlock(&vw->vw_buf);
1601
1602 VT_FLUSH_UNLOCK(vd);
1603
1604 return (0);
1605 }
1606
1607 static void
vt_timer(void * arg)1608 vt_timer(void *arg)
1609 {
1610 struct vt_device *vd;
1611 int changed;
1612
1613 vd = arg;
1614 /* Update screen if required. */
1615 changed = vt_flush(vd);
1616
1617 /* Schedule for next update. */
1618 if (changed)
1619 vt_schedule_flush(vd, 0);
1620 else
1621 vd->vd_timer_armed = 0;
1622 }
1623
1624 static void
vtterm_pre_input(struct terminal * tm)1625 vtterm_pre_input(struct terminal *tm)
1626 {
1627 struct vt_window *vw = tm->tm_softc;
1628
1629 if (inside_vt_flush && KERNEL_PANICKED())
1630 return;
1631
1632 vtbuf_lock(&vw->vw_buf);
1633 }
1634
1635 static void
vtterm_post_input(struct terminal * tm)1636 vtterm_post_input(struct terminal *tm)
1637 {
1638 struct vt_window *vw = tm->tm_softc;
1639
1640 if (inside_vt_flush && KERNEL_PANICKED())
1641 return;
1642
1643 vtbuf_unlock(&vw->vw_buf);
1644 vt_resume_flush_timer(vw, 0);
1645 }
1646
1647 static void
vtterm_done(struct terminal * tm)1648 vtterm_done(struct terminal *tm)
1649 {
1650 struct vt_window *vw = tm->tm_softc;
1651 struct vt_device *vd = vw->vw_device;
1652
1653 if (kdb_active || KERNEL_PANICKED()) {
1654 /* Switch to the debugger. */
1655 if (vd->vd_curwindow != vw) {
1656 vd->vd_curwindow = vw;
1657 vd->vd_flags |= VDF_INVALID;
1658 if (vd->vd_driver->vd_postswitch)
1659 vd->vd_driver->vd_postswitch(vd);
1660 }
1661 vd->vd_flags &= ~VDF_SPLASH;
1662 vt_flush(vd);
1663 } else if (vt_slow_down > 0) {
1664 int i, j;
1665 for (i = 0; i < vt_slow_down; i++) {
1666 for (j = 0; j < 1000; j++)
1667 vt_flush(vd);
1668 }
1669 } else if (!(vd->vd_flags & VDF_ASYNC)) {
1670 vt_flush(vd);
1671 }
1672 }
1673
1674 #ifdef DEV_SPLASH
1675 static void
vtterm_splash(struct vt_device * vd)1676 vtterm_splash(struct vt_device *vd)
1677 {
1678 caddr_t kmdp;
1679 struct splash_info *si;
1680 uintptr_t image;
1681 vt_axis_t top, left;
1682
1683 kmdp = preload_search_by_type("elf kernel");
1684 if (kmdp == NULL)
1685 kmdp = preload_search_by_type("elf64 kernel");
1686 si = MD_FETCH(kmdp, MODINFOMD_SPLASH, struct splash_info *);
1687 if (!(vd->vd_flags & VDF_TEXTMODE) && (boothowto & RB_MUTE)) {
1688 if (si == NULL) {
1689 top = (vd->vd_height - vt_logo_height) / 2;
1690 left = (vd->vd_width - vt_logo_width) / 2;
1691 vd->vd_driver->vd_bitblt_bmp(vd, vd->vd_curwindow,
1692 vt_logo_image, NULL, vt_logo_width, vt_logo_height,
1693 left, top, TC_WHITE, TC_BLACK);
1694 } else {
1695 if (si->si_depth != 4)
1696 return;
1697 image = (uintptr_t)si + sizeof(struct splash_info);
1698 image = roundup2(image, 8);
1699 top = (vd->vd_height - si->si_height) / 2;
1700 left = (vd->vd_width - si->si_width) / 2;
1701 vd->vd_driver->vd_bitblt_argb(vd, vd->vd_curwindow,
1702 (unsigned char *)image, si->si_width, si->si_height,
1703 left, top);
1704 }
1705 vd->vd_flags |= VDF_SPLASH;
1706 }
1707 }
1708 #endif
1709
1710 static struct vt_font *
parse_font_info_static(struct font_info * fi)1711 parse_font_info_static(struct font_info *fi)
1712 {
1713 struct vt_font *vfp;
1714 uintptr_t ptr;
1715 uint32_t checksum;
1716
1717 if (fi == NULL)
1718 return (NULL);
1719
1720 ptr = (uintptr_t)fi;
1721 /*
1722 * Compute and verify checksum. The total sum of all the fields
1723 * must be 0.
1724 */
1725 checksum = fi->fi_width;
1726 checksum += fi->fi_height;
1727 checksum += fi->fi_bitmap_size;
1728 for (unsigned i = 0; i < VFNT_MAPS; i++)
1729 checksum += fi->fi_map_count[i];
1730
1731 if (checksum + fi->fi_checksum != 0)
1732 return (NULL);
1733
1734 ptr += sizeof(struct font_info);
1735 ptr = roundup2(ptr, 8);
1736
1737 vfp = &vt_font_loader;
1738 vfp->vf_height = fi->fi_height;
1739 vfp->vf_width = fi->fi_width;
1740 /* This is default font, set refcount 1 to disable removal. */
1741 vfp->vf_refcount = 1;
1742 for (unsigned i = 0; i < VFNT_MAPS; i++) {
1743 if (fi->fi_map_count[i] == 0)
1744 continue;
1745 vfp->vf_map_count[i] = fi->fi_map_count[i];
1746 vfp->vf_map[i] = (vfnt_map_t *)ptr;
1747 ptr += (fi->fi_map_count[i] * sizeof(vfnt_map_t));
1748 ptr = roundup2(ptr, 8);
1749 }
1750 vfp->vf_bytes = (uint8_t *)ptr;
1751 return (vfp);
1752 }
1753
1754 /*
1755 * Set up default font with allocated data structures.
1756 * However, we can not set refcount here, because it is already set and
1757 * incremented in vtterm_cnprobe() to avoid being released by font load from
1758 * userland.
1759 */
1760 static struct vt_font *
parse_font_info(struct font_info * fi)1761 parse_font_info(struct font_info *fi)
1762 {
1763 struct vt_font *vfp;
1764 uintptr_t ptr;
1765 uint32_t checksum;
1766 size_t size;
1767
1768 if (fi == NULL)
1769 return (NULL);
1770
1771 ptr = (uintptr_t)fi;
1772 /*
1773 * Compute and verify checksum. The total sum of all the fields
1774 * must be 0.
1775 */
1776 checksum = fi->fi_width;
1777 checksum += fi->fi_height;
1778 checksum += fi->fi_bitmap_size;
1779 for (unsigned i = 0; i < VFNT_MAPS; i++)
1780 checksum += fi->fi_map_count[i];
1781
1782 if (checksum + fi->fi_checksum != 0)
1783 return (NULL);
1784
1785 ptr += sizeof(struct font_info);
1786 ptr = roundup2(ptr, 8);
1787
1788 vfp = &vt_font_loader;
1789 vfp->vf_height = fi->fi_height;
1790 vfp->vf_width = fi->fi_width;
1791 for (unsigned i = 0; i < VFNT_MAPS; i++) {
1792 if (fi->fi_map_count[i] == 0)
1793 continue;
1794 vfp->vf_map_count[i] = fi->fi_map_count[i];
1795 size = fi->fi_map_count[i] * sizeof(vfnt_map_t);
1796 vfp->vf_map[i] = malloc(size, M_VT, M_WAITOK | M_ZERO);
1797 bcopy((vfnt_map_t *)ptr, vfp->vf_map[i], size);
1798 ptr += size;
1799 ptr = roundup2(ptr, 8);
1800 }
1801 vfp->vf_bytes = malloc(fi->fi_bitmap_size, M_VT, M_WAITOK | M_ZERO);
1802 bcopy((uint8_t *)ptr, vfp->vf_bytes, fi->fi_bitmap_size);
1803 return (vfp);
1804 }
1805
1806 static void
vt_init_font(void * arg)1807 vt_init_font(void *arg)
1808 {
1809 caddr_t kmdp;
1810 struct font_info *fi;
1811 struct vt_font *font;
1812
1813 kmdp = preload_search_by_type("elf kernel");
1814 if (kmdp == NULL)
1815 kmdp = preload_search_by_type("elf64 kernel");
1816 fi = MD_FETCH(kmdp, MODINFOMD_FONT, struct font_info *);
1817
1818 font = parse_font_info(fi);
1819 if (font != NULL)
1820 vt_font_assigned = font;
1821 }
1822
1823 SYSINIT(vt_init_font, SI_SUB_KMEM, SI_ORDER_ANY, vt_init_font, &vt_consdev);
1824
1825 static void
vt_init_font_static(void)1826 vt_init_font_static(void)
1827 {
1828 caddr_t kmdp;
1829 struct font_info *fi;
1830 struct vt_font *font;
1831
1832 kmdp = preload_search_by_type("elf kernel");
1833 if (kmdp == NULL)
1834 kmdp = preload_search_by_type("elf64 kernel");
1835 fi = MD_FETCH(kmdp, MODINFOMD_FONT, struct font_info *);
1836
1837 font = parse_font_info_static(fi);
1838 if (font != NULL)
1839 vt_font_assigned = font;
1840 }
1841
1842 static void
vtterm_cnprobe(struct terminal * tm,struct consdev * cp)1843 vtterm_cnprobe(struct terminal *tm, struct consdev *cp)
1844 {
1845 struct vt_driver *vtd, **vtdlist, *vtdbest = NULL;
1846 struct vt_window *vw = tm->tm_softc;
1847 struct vt_device *vd = vw->vw_device;
1848 struct winsize wsz;
1849 const term_attr_t *a;
1850
1851 if (!vty_enabled(VTY_VT))
1852 return;
1853
1854 if (vd->vd_flags & VDF_INITIALIZED)
1855 /* Initialization already done. */
1856 return;
1857
1858 SET_FOREACH(vtdlist, vt_drv_set) {
1859 vtd = *vtdlist;
1860 if (vtd->vd_probe == NULL)
1861 continue;
1862 if (vtd->vd_probe(vd) == CN_DEAD)
1863 continue;
1864 if ((vtdbest == NULL) ||
1865 (vtd->vd_priority > vtdbest->vd_priority))
1866 vtdbest = vtd;
1867 }
1868 if (vtdbest == NULL) {
1869 cp->cn_pri = CN_DEAD;
1870 vd->vd_flags |= VDF_DEAD;
1871 } else {
1872 vd->vd_driver = vtdbest;
1873 cp->cn_pri = vd->vd_driver->vd_init(vd);
1874 }
1875
1876 /* Check if driver's vt_init return CN_DEAD. */
1877 if (cp->cn_pri == CN_DEAD) {
1878 vd->vd_flags |= VDF_DEAD;
1879 }
1880
1881 /* Initialize any early-boot keyboard drivers */
1882 kbd_configure(KB_CONF_PROBE_ONLY);
1883
1884 vd->vd_unit = atomic_fetchadd_int(&vt_unit, 1);
1885 vd->vd_windows[VT_CONSWINDOW] = vw;
1886 sprintf(cp->cn_name, "ttyv%r", VT_UNIT(vw));
1887
1888 vt_init_font_static();
1889
1890 /* Attach default font if not in TEXTMODE. */
1891 if ((vd->vd_flags & VDF_TEXTMODE) == 0) {
1892 vw->vw_font = vtfont_ref(vt_font_assigned);
1893 vt_compute_drawable_area(vw);
1894 }
1895
1896 /*
1897 * The original screen size was faked (_VTDEFW x _VTDEFH). Now
1898 * that we have the real viewable size, fix it in the static
1899 * buffer.
1900 */
1901 if (vd->vd_width != 0 && vd->vd_height != 0)
1902 vt_termsize(vd, vw->vw_font, &vw->vw_buf.vb_scr_size);
1903
1904 /* We need to access terminal attributes from vtbuf */
1905 vw->vw_buf.vb_terminal = tm;
1906 vtbuf_init_early(&vw->vw_buf);
1907 vt_winsize(vd, vw->vw_font, &wsz);
1908 a = teken_get_curattr(&tm->tm_emulator);
1909 terminal_set_winsize_blank(tm, &wsz, 1, a);
1910
1911 if (vtdbest != NULL) {
1912 #ifdef DEV_SPLASH
1913 if (!vt_splash_cpu)
1914 vtterm_splash(vd);
1915 #endif
1916 vd->vd_flags |= VDF_INITIALIZED;
1917 }
1918 }
1919
1920 static int
vtterm_cngetc(struct terminal * tm)1921 vtterm_cngetc(struct terminal *tm)
1922 {
1923 struct vt_window *vw = tm->tm_softc;
1924 struct vt_device *vd = vw->vw_device;
1925 keyboard_t *kbd;
1926 u_int c;
1927
1928 if (vw->vw_kbdsq && *vw->vw_kbdsq)
1929 return (*vw->vw_kbdsq++);
1930
1931 /* Make sure the splash screen is not there. */
1932 if (vd->vd_flags & VDF_SPLASH) {
1933 /* Remove splash */
1934 vd->vd_flags &= ~VDF_SPLASH;
1935 /* Mark screen as invalid to force update */
1936 vd->vd_flags |= VDF_INVALID;
1937 vt_flush(vd);
1938 }
1939
1940 /* Stripped down keyboard handler. */
1941 if ((kbd = vd->vd_keyboard) == NULL)
1942 return (-1);
1943
1944 /* Force keyboard input mode to K_XLATE */
1945 vw->vw_kbdmode = K_XLATE;
1946 vt_update_kbd_mode(vw, kbd);
1947
1948 /* Switch the keyboard to polling to make it work here. */
1949 kbdd_poll(kbd, TRUE);
1950 c = kbdd_read_char(kbd, 0);
1951 kbdd_poll(kbd, FALSE);
1952 if (c & RELKEY)
1953 return (-1);
1954
1955 if (vw->vw_flags & VWF_SCROLL) {
1956 vt_scrollmode_kbdevent(vw, c, 1/* Console mode */);
1957 vt_flush(vd);
1958 return (-1);
1959 }
1960
1961 /* Stripped down handling of vt_kbdevent(), without locking, etc. */
1962 if (c & SPCLKEY) {
1963 switch (c) {
1964 case SPCLKEY | SLK:
1965 vt_save_kbd_state(vw, kbd);
1966 if (vw->vw_kbdstate & SLKED) {
1967 /* Turn scrolling on. */
1968 vw->vw_flags |= VWF_SCROLL;
1969 VTBUF_SLCK_ENABLE(&vw->vw_buf);
1970 } else {
1971 /* Turn scrolling off. */
1972 vt_scroll(vw, 0, VHS_END);
1973 vw->vw_flags &= ~VWF_SCROLL;
1974 VTBUF_SLCK_DISABLE(&vw->vw_buf);
1975 }
1976 break;
1977 /* XXX: KDB can handle history. */
1978 case SPCLKEY | FKEY | F(50): /* Arrow up. */
1979 vw->vw_kbdsq = "\x1b[A";
1980 break;
1981 case SPCLKEY | FKEY | F(58): /* Arrow down. */
1982 vw->vw_kbdsq = "\x1b[B";
1983 break;
1984 case SPCLKEY | FKEY | F(55): /* Arrow right. */
1985 vw->vw_kbdsq = "\x1b[C";
1986 break;
1987 case SPCLKEY | FKEY | F(53): /* Arrow left. */
1988 vw->vw_kbdsq = "\x1b[D";
1989 break;
1990 }
1991
1992 /* Force refresh to make scrollback work. */
1993 vt_flush(vd);
1994 } else if (KEYFLAGS(c) == 0) {
1995 return (KEYCHAR(c));
1996 }
1997
1998 if (vw->vw_kbdsq && *vw->vw_kbdsq)
1999 return (*vw->vw_kbdsq++);
2000
2001 return (-1);
2002 }
2003
2004 /*
2005 * These two do most of what we want to do in vtterm_cnungrab, but without
2006 * actually switching windows. This is necessary for, e.g.,
2007 * vt_allocate_keyboard() to get the current keyboard into the state it needs to
2008 * be in without damaging the device's window state.
2009 *
2010 * Both return the current grab count, though it's only used in vtterm_cnungrab.
2011 */
2012 static int
vtterm_cngrab_noswitch(struct vt_device * vd,struct vt_window * vw)2013 vtterm_cngrab_noswitch(struct vt_device *vd, struct vt_window *vw)
2014 {
2015 keyboard_t *kbd;
2016
2017 if (vw->vw_grabbed++ > 0)
2018 return (vw->vw_grabbed);
2019
2020 if ((kbd = vd->vd_keyboard) == NULL)
2021 return (1);
2022
2023 /*
2024 * Make sure the keyboard is accessible even when the kbd device
2025 * driver is disabled.
2026 */
2027 kbdd_enable(kbd);
2028
2029 /* We shall always use the keyboard in the XLATE mode here. */
2030 vw->vw_prev_kbdmode = vw->vw_kbdmode;
2031 vw->vw_kbdmode = K_XLATE;
2032 vt_update_kbd_mode(vw, kbd);
2033
2034 kbdd_poll(kbd, TRUE);
2035 return (1);
2036 }
2037
2038 static int
vtterm_cnungrab_noswitch(struct vt_device * vd,struct vt_window * vw)2039 vtterm_cnungrab_noswitch(struct vt_device *vd, struct vt_window *vw)
2040 {
2041 keyboard_t *kbd;
2042
2043 if (--vw->vw_grabbed > 0)
2044 return (vw->vw_grabbed);
2045
2046 if ((kbd = vd->vd_keyboard) == NULL)
2047 return (0);
2048
2049 kbdd_poll(kbd, FALSE);
2050
2051 vw->vw_kbdmode = vw->vw_prev_kbdmode;
2052 vt_update_kbd_mode(vw, kbd);
2053 kbdd_disable(kbd);
2054 return (0);
2055 }
2056
2057 static void
vtterm_cngrab(struct terminal * tm)2058 vtterm_cngrab(struct terminal *tm)
2059 {
2060 struct vt_device *vd;
2061 struct vt_window *vw;
2062
2063 vw = tm->tm_softc;
2064 vd = vw->vw_device;
2065
2066 /* To be restored after we ungrab. */
2067 if (vd->vd_grabwindow == NULL)
2068 vd->vd_grabwindow = vd->vd_curwindow;
2069
2070 if (!cold)
2071 vt_window_switch(vw);
2072
2073 vtterm_cngrab_noswitch(vd, vw);
2074 }
2075
2076 static void
vtterm_cnungrab(struct terminal * tm)2077 vtterm_cnungrab(struct terminal *tm)
2078 {
2079 struct vt_device *vd;
2080 struct vt_window *vw, *grabwindow;
2081
2082 vw = tm->tm_softc;
2083 vd = vw->vw_device;
2084
2085 MPASS(vd->vd_grabwindow != NULL);
2086 if (vtterm_cnungrab_noswitch(vd, vw) != 0)
2087 return;
2088
2089 /*
2090 * We set `vd_grabwindow` to NULL before calling vt_window_switch()
2091 * because it allows the underlying vt(4) backend to distinguish a
2092 * "grab" from an "ungrab" of the console.
2093 *
2094 * This is used by `vt_drmfb` in drm-kmod to call either
2095 * fb_debug_enter() or fb_debug_leave() appropriately.
2096 */
2097 grabwindow = vd->vd_grabwindow;
2098 vd->vd_grabwindow = NULL;
2099
2100 if (!cold)
2101 vt_window_switch(grabwindow);
2102 }
2103
2104 static void
vtterm_opened(struct terminal * tm,int opened)2105 vtterm_opened(struct terminal *tm, int opened)
2106 {
2107 struct vt_window *vw = tm->tm_softc;
2108 struct vt_device *vd = vw->vw_device;
2109
2110 VT_LOCK(vd);
2111 vd->vd_flags &= ~VDF_SPLASH;
2112 if (opened)
2113 vw->vw_flags |= VWF_OPENED;
2114 else {
2115 vw->vw_flags &= ~VWF_OPENED;
2116 /* TODO: finish ACQ/REL */
2117 }
2118 VT_UNLOCK(vd);
2119 }
2120
2121 static int
vt_change_font(struct vt_window * vw,struct vt_font * vf)2122 vt_change_font(struct vt_window *vw, struct vt_font *vf)
2123 {
2124 struct vt_device *vd = vw->vw_device;
2125 struct terminal *tm = vw->vw_terminal;
2126 term_pos_t size;
2127 struct winsize wsz;
2128
2129 /*
2130 * Changing fonts.
2131 *
2132 * Changing fonts is a little tricky. We must prevent
2133 * simultaneous access to the device, so we must stop
2134 * the display timer and the terminal from accessing.
2135 * We need to switch fonts and grow our screen buffer.
2136 *
2137 * XXX: Right now the code uses terminal_mute() to
2138 * prevent data from reaching the console driver while
2139 * resizing the screen buffer. This isn't elegant...
2140 */
2141
2142 VT_LOCK(vd);
2143 if (vw->vw_flags & VWF_BUSY) {
2144 /* Another process is changing the font. */
2145 VT_UNLOCK(vd);
2146 return (EBUSY);
2147 }
2148 vw->vw_flags |= VWF_BUSY;
2149 VT_UNLOCK(vd);
2150
2151 vt_termsize(vd, vf, &size);
2152 vt_winsize(vd, vf, &wsz);
2153
2154 /* Grow the screen buffer and terminal. */
2155 terminal_mute(tm, 1);
2156 vtbuf_grow(&vw->vw_buf, &size, vw->vw_buf.vb_history_size);
2157 terminal_set_winsize_blank(tm, &wsz, 0, NULL);
2158 terminal_set_cursor(tm, &vw->vw_buf.vb_cursor);
2159 terminal_mute(tm, 0);
2160
2161 /* Actually apply the font to the current window. */
2162 VT_LOCK(vd);
2163 if (vw->vw_font != vf && vw->vw_font != NULL && vf != NULL) {
2164 /*
2165 * In case vt_change_font called to update size we don't need
2166 * to update font link.
2167 */
2168 vtfont_unref(vw->vw_font);
2169 vw->vw_font = vtfont_ref(vf);
2170 }
2171
2172 /*
2173 * Compute the drawable area and move the mouse cursor inside
2174 * it, in case the new area is smaller than the previous one.
2175 */
2176 vt_compute_drawable_area(vw);
2177 vd->vd_mx = min(vd->vd_mx,
2178 vw->vw_draw_area.tr_end.tp_col -
2179 vw->vw_draw_area.tr_begin.tp_col - 1);
2180 vd->vd_my = min(vd->vd_my,
2181 vw->vw_draw_area.tr_end.tp_row -
2182 vw->vw_draw_area.tr_begin.tp_row - 1);
2183
2184 /* Force a full redraw the next timer tick. */
2185 if (vd->vd_curwindow == vw) {
2186 vd->vd_flags |= VDF_INVALID;
2187 vt_resume_flush_timer(vw, 0);
2188 }
2189 vw->vw_flags &= ~VWF_BUSY;
2190 VT_UNLOCK(vd);
2191 return (0);
2192 }
2193
2194 static int
vt_proc_alive(struct vt_window * vw)2195 vt_proc_alive(struct vt_window *vw)
2196 {
2197 struct proc *p;
2198
2199 if (vw->vw_smode.mode != VT_PROCESS)
2200 return (FALSE);
2201
2202 if (vw->vw_proc) {
2203 if ((p = pfind(vw->vw_pid)) != NULL)
2204 PROC_UNLOCK(p);
2205 if (vw->vw_proc == p)
2206 return (TRUE);
2207 vw->vw_proc = NULL;
2208 vw->vw_smode.mode = VT_AUTO;
2209 DPRINTF(1, "vt controlling process %d died\n", vw->vw_pid);
2210 vw->vw_pid = 0;
2211 }
2212 return (FALSE);
2213 }
2214
2215 static int
signal_vt_rel(struct vt_window * vw)2216 signal_vt_rel(struct vt_window *vw)
2217 {
2218
2219 if (vw->vw_smode.mode != VT_PROCESS)
2220 return (FALSE);
2221 if (vw->vw_proc == NULL || vt_proc_alive(vw) == FALSE) {
2222 vw->vw_proc = NULL;
2223 vw->vw_pid = 0;
2224 return (TRUE);
2225 }
2226 vw->vw_flags |= VWF_SWWAIT_REL;
2227 PROC_LOCK(vw->vw_proc);
2228 kern_psignal(vw->vw_proc, vw->vw_smode.relsig);
2229 PROC_UNLOCK(vw->vw_proc);
2230 DPRINTF(1, "sending relsig to %d\n", vw->vw_pid);
2231 return (TRUE);
2232 }
2233
2234 static int
signal_vt_acq(struct vt_window * vw)2235 signal_vt_acq(struct vt_window *vw)
2236 {
2237
2238 if (vw->vw_smode.mode != VT_PROCESS)
2239 return (FALSE);
2240 if (vw == vw->vw_device->vd_windows[VT_CONSWINDOW])
2241 cnavailable(vw->vw_terminal->consdev, FALSE);
2242 if (vw->vw_proc == NULL || vt_proc_alive(vw) == FALSE) {
2243 vw->vw_proc = NULL;
2244 vw->vw_pid = 0;
2245 return (TRUE);
2246 }
2247 vw->vw_flags |= VWF_SWWAIT_ACQ;
2248 PROC_LOCK(vw->vw_proc);
2249 kern_psignal(vw->vw_proc, vw->vw_smode.acqsig);
2250 PROC_UNLOCK(vw->vw_proc);
2251 DPRINTF(1, "sending acqsig to %d\n", vw->vw_pid);
2252 return (TRUE);
2253 }
2254
2255 static int
finish_vt_rel(struct vt_window * vw,int release,int * s)2256 finish_vt_rel(struct vt_window *vw, int release, int *s)
2257 {
2258
2259 if (vw->vw_flags & VWF_SWWAIT_REL) {
2260 vw->vw_flags &= ~VWF_SWWAIT_REL;
2261 if (release) {
2262 taskqueue_drain_timeout(taskqueue_thread, &vw->vw_timeout_task_dead);
2263 (void)vt_late_window_switch(vw->vw_switch_to);
2264 }
2265 return (0);
2266 }
2267 return (EINVAL);
2268 }
2269
2270 static int
finish_vt_acq(struct vt_window * vw)2271 finish_vt_acq(struct vt_window *vw)
2272 {
2273
2274 if (vw->vw_flags & VWF_SWWAIT_ACQ) {
2275 vw->vw_flags &= ~VWF_SWWAIT_ACQ;
2276 return (0);
2277 }
2278 return (EINVAL);
2279 }
2280
2281 #ifndef SC_NO_CUTPASTE
2282 static void
vt_mouse_terminput_button(struct vt_device * vd,int button)2283 vt_mouse_terminput_button(struct vt_device *vd, int button)
2284 {
2285 struct vt_window *vw;
2286 struct vt_font *vf;
2287 char mouseb[6] = "\x1B[M";
2288 int i, x, y;
2289
2290 vw = vd->vd_curwindow;
2291 vf = vw->vw_font;
2292
2293 /* Translate to char position. */
2294 x = vd->vd_mx / vf->vf_width;
2295 y = vd->vd_my / vf->vf_height;
2296 /* Avoid overflow. */
2297 x = MIN(x, 255 - '!');
2298 y = MIN(y, 255 - '!');
2299
2300 mouseb[3] = ' ' + button;
2301 mouseb[4] = '!' + x;
2302 mouseb[5] = '!' + y;
2303
2304 for (i = 0; i < sizeof(mouseb); i++)
2305 terminal_input_char(vw->vw_terminal, mouseb[i]);
2306 }
2307
2308 static void
vt_mouse_terminput(struct vt_device * vd,int type,int x,int y,int event,int cnt)2309 vt_mouse_terminput(struct vt_device *vd, int type, int x, int y, int event,
2310 int cnt)
2311 {
2312
2313 switch (type) {
2314 case MOUSE_BUTTON_EVENT:
2315 if (cnt > 0) {
2316 /* Mouse button pressed. */
2317 if (event & MOUSE_BUTTON1DOWN)
2318 vt_mouse_terminput_button(vd, 0);
2319 if (event & MOUSE_BUTTON2DOWN)
2320 vt_mouse_terminput_button(vd, 1);
2321 if (event & MOUSE_BUTTON3DOWN)
2322 vt_mouse_terminput_button(vd, 2);
2323 } else {
2324 /* Mouse button released. */
2325 vt_mouse_terminput_button(vd, 3);
2326 }
2327 break;
2328 #ifdef notyet
2329 case MOUSE_MOTION_EVENT:
2330 if (mouse->u.data.z < 0) {
2331 /* Scroll up. */
2332 sc_mouse_input_button(vd, 64);
2333 } else if (mouse->u.data.z > 0) {
2334 /* Scroll down. */
2335 sc_mouse_input_button(vd, 65);
2336 }
2337 break;
2338 #endif
2339 }
2340 }
2341
2342 static void
vt_mouse_paste(void)2343 vt_mouse_paste(void)
2344 {
2345 term_char_t *buf;
2346 int i, len;
2347
2348 len = VD_PASTEBUFLEN(main_vd);
2349 buf = VD_PASTEBUF(main_vd);
2350 len /= sizeof(term_char_t);
2351 for (i = 0; i < len; i++) {
2352 if (TCHAR_CHARACTER(buf[i]) == '\0')
2353 continue;
2354 terminal_input_char(main_vd->vd_curwindow->vw_terminal,
2355 buf[i]);
2356 }
2357 }
2358
2359 void
vt_mouse_event(int type,int x,int y,int event,int cnt,int mlevel)2360 vt_mouse_event(int type, int x, int y, int event, int cnt, int mlevel)
2361 {
2362 struct vt_device *vd;
2363 struct vt_window *vw;
2364 struct vt_font *vf;
2365 term_pos_t size;
2366 int len, mark;
2367
2368 vd = main_vd;
2369 vw = vd->vd_curwindow;
2370 vf = vw->vw_font;
2371
2372 if (vw->vw_flags & (VWF_MOUSE_HIDE | VWF_GRAPHICS))
2373 /*
2374 * Either the mouse is disabled, or the window is in
2375 * "graphics mode". The graphics mode is usually set by
2376 * an X server, using the KDSETMODE ioctl.
2377 */
2378 return;
2379
2380 if (vf == NULL) /* Text mode. */
2381 return;
2382
2383 /*
2384 * TODO: add flag about pointer position changed, to not redraw chars
2385 * under mouse pointer when nothing changed.
2386 */
2387
2388 if (vw->vw_mouse_level > 0)
2389 vt_mouse_terminput(vd, type, x, y, event, cnt);
2390
2391 switch (type) {
2392 case MOUSE_ACTION:
2393 case MOUSE_MOTION_EVENT:
2394 /* Movement */
2395 x += vd->vd_mx;
2396 y += vd->vd_my;
2397
2398 vt_termsize(vd, vf, &size);
2399
2400 /* Apply limits. */
2401 x = MAX(x, 0);
2402 y = MAX(y, 0);
2403 x = MIN(x, (size.tp_col * vf->vf_width) - 1);
2404 y = MIN(y, (size.tp_row * vf->vf_height) - 1);
2405
2406 vd->vd_mx = x;
2407 vd->vd_my = y;
2408 if (vd->vd_mstate & (MOUSE_BUTTON1DOWN | VT_MOUSE_EXTENDBUTTON))
2409 vtbuf_set_mark(&vw->vw_buf, VTB_MARK_MOVE,
2410 vd->vd_mx / vf->vf_width,
2411 vd->vd_my / vf->vf_height);
2412
2413 vt_resume_flush_timer(vw, 0);
2414 return; /* Done */
2415 case MOUSE_BUTTON_EVENT:
2416 /* Buttons */
2417 break;
2418 default:
2419 return; /* Done */
2420 }
2421
2422 switch (event) {
2423 case MOUSE_BUTTON1DOWN:
2424 switch (cnt % 4) {
2425 case 0: /* up */
2426 mark = VTB_MARK_END;
2427 break;
2428 case 1: /* single click: start cut operation */
2429 mark = VTB_MARK_START;
2430 break;
2431 case 2: /* double click: cut a word */
2432 mark = VTB_MARK_WORD;
2433 break;
2434 default: /* triple click: cut a line */
2435 mark = VTB_MARK_ROW;
2436 break;
2437 }
2438 break;
2439 case VT_MOUSE_PASTEBUTTON:
2440 switch (cnt) {
2441 case 0: /* up */
2442 break;
2443 default:
2444 vt_mouse_paste();
2445 /* clear paste buffer selection after paste */
2446 vtbuf_set_mark(&vw->vw_buf, VTB_MARK_START,
2447 vd->vd_mx / vf->vf_width,
2448 vd->vd_my / vf->vf_height);
2449 break;
2450 }
2451 return; /* Done */
2452 case VT_MOUSE_EXTENDBUTTON:
2453 switch (cnt) {
2454 case 0: /* up */
2455 if (!(vd->vd_mstate & MOUSE_BUTTON1DOWN))
2456 mark = VTB_MARK_EXTEND;
2457 else
2458 mark = VTB_MARK_NONE;
2459 break;
2460 default:
2461 mark = VTB_MARK_EXTEND;
2462 break;
2463 }
2464 break;
2465 default:
2466 return; /* Done */
2467 }
2468
2469 /* Save buttons state. */
2470 if (cnt > 0)
2471 vd->vd_mstate |= event;
2472 else
2473 vd->vd_mstate &= ~event;
2474
2475 if (vtbuf_set_mark(&vw->vw_buf, mark, vd->vd_mx / vf->vf_width,
2476 vd->vd_my / vf->vf_height) == 1) {
2477 /*
2478 * We have something marked to copy, so update pointer to
2479 * window with selection.
2480 */
2481 vt_resume_flush_timer(vw, 0);
2482
2483 switch (mark) {
2484 case VTB_MARK_END:
2485 case VTB_MARK_WORD:
2486 case VTB_MARK_ROW:
2487 case VTB_MARK_EXTEND:
2488 break;
2489 default:
2490 /* Other types of mark do not require to copy data. */
2491 return;
2492 }
2493
2494 /* Get current selection size in bytes. */
2495 len = vtbuf_get_marked_len(&vw->vw_buf);
2496 if (len <= 0)
2497 return;
2498
2499 /* Reallocate buffer only if old one is too small. */
2500 if (len > VD_PASTEBUFSZ(vd)) {
2501 VD_PASTEBUF(vd) = realloc(VD_PASTEBUF(vd), len, M_VT,
2502 M_WAITOK | M_ZERO);
2503 /* Update buffer size. */
2504 VD_PASTEBUFSZ(vd) = len;
2505 }
2506 /* Request copy/paste buffer data, no more than `len' */
2507 vtbuf_extract_marked(&vw->vw_buf, VD_PASTEBUF(vd), len, mark);
2508
2509 VD_PASTEBUFLEN(vd) = len;
2510
2511 /* XXX VD_PASTEBUF(vd) have to be freed on shutdown/unload. */
2512 }
2513 }
2514
2515 void
vt_mouse_state(int show)2516 vt_mouse_state(int show)
2517 {
2518 struct vt_device *vd;
2519 struct vt_window *vw;
2520
2521 vd = main_vd;
2522 vw = vd->vd_curwindow;
2523
2524 switch (show) {
2525 case VT_MOUSE_HIDE:
2526 vw->vw_flags |= VWF_MOUSE_HIDE;
2527 break;
2528 case VT_MOUSE_SHOW:
2529 vw->vw_flags &= ~VWF_MOUSE_HIDE;
2530 break;
2531 }
2532
2533 /* Mark mouse position as dirty. */
2534 vt_mark_mouse_position_as_dirty(vd, false);
2535 vt_resume_flush_timer(vw, 0);
2536 }
2537 #endif
2538
2539 static int
vtterm_mmap(struct terminal * tm,vm_ooffset_t offset,vm_paddr_t * paddr,int nprot,vm_memattr_t * memattr)2540 vtterm_mmap(struct terminal *tm, vm_ooffset_t offset, vm_paddr_t * paddr,
2541 int nprot, vm_memattr_t *memattr)
2542 {
2543 struct vt_window *vw = tm->tm_softc;
2544 struct vt_device *vd = vw->vw_device;
2545
2546 if (vd->vd_driver->vd_fb_mmap)
2547 return (vd->vd_driver->vd_fb_mmap(vd, offset, paddr, nprot,
2548 memattr));
2549
2550 return (ENXIO);
2551 }
2552
2553 static int
vtterm_ioctl(struct terminal * tm,u_long cmd,caddr_t data,struct thread * td)2554 vtterm_ioctl(struct terminal *tm, u_long cmd, caddr_t data,
2555 struct thread *td)
2556 {
2557 struct vt_window *vw = tm->tm_softc;
2558 struct vt_device *vd = vw->vw_device;
2559 keyboard_t *kbd;
2560 int error, i, s;
2561 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
2562 defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
2563 int ival;
2564
2565 switch (cmd) {
2566 case _IO('v', 4):
2567 cmd = VT_RELDISP;
2568 break;
2569 case _IO('v', 5):
2570 cmd = VT_ACTIVATE;
2571 break;
2572 case _IO('v', 6):
2573 cmd = VT_WAITACTIVE;
2574 break;
2575 case _IO('K', 20):
2576 cmd = KDSKBSTATE;
2577 break;
2578 case _IO('K', 67):
2579 cmd = KDSETRAD;
2580 break;
2581 case _IO('K', 7):
2582 cmd = KDSKBMODE;
2583 break;
2584 case _IO('K', 8):
2585 cmd = KDMKTONE;
2586 break;
2587 case _IO('K', 10):
2588 cmd = KDSETMODE;
2589 break;
2590 case _IO('K', 13):
2591 cmd = KDSBORDER;
2592 break;
2593 case _IO('K', 63):
2594 cmd = KIOCSOUND;
2595 break;
2596 case _IO('K', 66):
2597 cmd = KDSETLED;
2598 break;
2599 case _IO('c', 104):
2600 cmd = CONS_SETWINORG;
2601 break;
2602 case _IO('c', 110):
2603 cmd = CONS_SETKBD;
2604 break;
2605 default:
2606 goto skip_thunk;
2607 }
2608 ival = IOCPARM_IVAL(data);
2609 data = (caddr_t)&ival;
2610 skip_thunk:
2611 #endif
2612
2613 switch (cmd) {
2614 case KDSETRAD: /* set keyboard repeat & delay rates (old) */
2615 if (*(int *)data & ~0x7f)
2616 return (EINVAL);
2617 /* FALLTHROUGH */
2618 case GIO_KEYMAP:
2619 case PIO_KEYMAP:
2620 case GIO_DEADKEYMAP:
2621 case PIO_DEADKEYMAP:
2622 #ifdef COMPAT_FREEBSD13
2623 case OGIO_DEADKEYMAP:
2624 case OPIO_DEADKEYMAP:
2625 #endif /* COMPAT_FREEBSD13 */
2626 case GETFKEY:
2627 case SETFKEY:
2628 case KDGKBINFO:
2629 case KDGKBTYPE:
2630 case KDGETREPEAT: /* get keyboard repeat & delay rates */
2631 case KDSETREPEAT: /* set keyboard repeat & delay rates (new) */
2632 case KBADDKBD: /* add keyboard to mux */
2633 case KBRELKBD: { /* release keyboard from mux */
2634 error = 0;
2635
2636 mtx_lock(&Giant);
2637 if ((kbd = vd->vd_keyboard) != NULL)
2638 error = kbdd_ioctl(kbd, cmd, data);
2639 mtx_unlock(&Giant);
2640 if (error == ENOIOCTL) {
2641 if (cmd == KDGKBTYPE) {
2642 /* always return something? XXX */
2643 *(int *)data = 0;
2644 } else {
2645 return (ENODEV);
2646 }
2647 }
2648 return (error);
2649 }
2650 case KDGKBSTATE: { /* get keyboard state (locks) */
2651 error = 0;
2652
2653 if (vw == vd->vd_curwindow) {
2654 mtx_lock(&Giant);
2655 if ((kbd = vd->vd_keyboard) != NULL)
2656 error = vt_save_kbd_state(vw, kbd);
2657 mtx_unlock(&Giant);
2658
2659 if (error != 0)
2660 return (error);
2661 }
2662
2663 *(int *)data = vw->vw_kbdstate & LOCK_MASK;
2664
2665 return (error);
2666 }
2667 case KDSKBSTATE: { /* set keyboard state (locks) */
2668 int state;
2669
2670 state = *(int *)data;
2671 if (state & ~LOCK_MASK)
2672 return (EINVAL);
2673
2674 vw->vw_kbdstate &= ~LOCK_MASK;
2675 vw->vw_kbdstate |= state;
2676
2677 error = 0;
2678 if (vw == vd->vd_curwindow) {
2679 mtx_lock(&Giant);
2680 if ((kbd = vd->vd_keyboard) != NULL)
2681 error = vt_update_kbd_state(vw, kbd);
2682 mtx_unlock(&Giant);
2683 }
2684
2685 return (error);
2686 }
2687 case KDGETLED: { /* get keyboard LED status */
2688 error = 0;
2689
2690 if (vw == vd->vd_curwindow) {
2691 mtx_lock(&Giant);
2692 if ((kbd = vd->vd_keyboard) != NULL)
2693 error = vt_save_kbd_leds(vw, kbd);
2694 mtx_unlock(&Giant);
2695
2696 if (error != 0)
2697 return (error);
2698 }
2699
2700 *(int *)data = vw->vw_kbdstate & LED_MASK;
2701
2702 return (error);
2703 }
2704 case KDSETLED: { /* set keyboard LED status */
2705 int leds;
2706
2707 leds = *(int *)data;
2708 if (leds & ~LED_MASK)
2709 return (EINVAL);
2710
2711 vw->vw_kbdstate &= ~LED_MASK;
2712 vw->vw_kbdstate |= leds;
2713
2714 error = 0;
2715 if (vw == vd->vd_curwindow) {
2716 mtx_lock(&Giant);
2717 if ((kbd = vd->vd_keyboard) != NULL)
2718 error = vt_update_kbd_leds(vw, kbd);
2719 mtx_unlock(&Giant);
2720 }
2721
2722 return (error);
2723 }
2724 case KDGETMODE:
2725 *(int *)data = (vw->vw_flags & VWF_GRAPHICS) ?
2726 KD_GRAPHICS : KD_TEXT;
2727 return (0);
2728 case KDGKBMODE: {
2729 error = 0;
2730
2731 if (vw == vd->vd_curwindow) {
2732 mtx_lock(&Giant);
2733 if ((kbd = vd->vd_keyboard) != NULL)
2734 error = vt_save_kbd_mode(vw, kbd);
2735 mtx_unlock(&Giant);
2736
2737 if (error != 0)
2738 return (error);
2739 }
2740
2741 *(int *)data = vw->vw_kbdmode;
2742
2743 return (error);
2744 }
2745 case KDSKBMODE: {
2746 int mode;
2747
2748 mode = *(int *)data;
2749 switch (mode) {
2750 case K_XLATE:
2751 case K_RAW:
2752 case K_CODE:
2753 vw->vw_kbdmode = mode;
2754
2755 error = 0;
2756 if (vw == vd->vd_curwindow) {
2757 mtx_lock(&Giant);
2758 if ((kbd = vd->vd_keyboard) != NULL)
2759 error = vt_update_kbd_mode(vw, kbd);
2760 mtx_unlock(&Giant);
2761 }
2762
2763 return (error);
2764 default:
2765 return (EINVAL);
2766 }
2767 }
2768 case FBIOGTYPE:
2769 case FBIO_GETWINORG: /* get frame buffer window origin */
2770 case FBIO_GETDISPSTART: /* get display start address */
2771 case FBIO_GETLINEWIDTH: /* get scan line width in bytes */
2772 case FBIO_BLANK: /* blank display */
2773 case FBIO_GETRGBOFFS: /* get RGB offsets */
2774 if (vd->vd_driver->vd_fb_ioctl)
2775 return (vd->vd_driver->vd_fb_ioctl(vd, cmd, data, td));
2776 break;
2777 case CONS_BLANKTIME:
2778 /* XXX */
2779 return (0);
2780 case CONS_HISTORY:
2781 if (*(int *)data < 0)
2782 return EINVAL;
2783 if (*(int *)data != vw->vw_buf.vb_history_size)
2784 vtbuf_sethistory_size(&vw->vw_buf, *(int *)data);
2785 return (0);
2786 case CONS_CLRHIST:
2787 vtbuf_clearhistory(&vw->vw_buf);
2788 /*
2789 * Invalidate the entire visible window; it is not guaranteed
2790 * that this operation will be immediately followed by a scroll
2791 * event, so it would otherwise be possible for prior artifacts
2792 * to remain visible.
2793 */
2794 VT_LOCK(vd);
2795 if (vw == vd->vd_curwindow) {
2796 vd->vd_flags |= VDF_INVALID;
2797 vt_resume_flush_timer(vw, 0);
2798 }
2799 VT_UNLOCK(vd);
2800 return (0);
2801 case CONS_GET:
2802 /* XXX */
2803 *(int *)data = M_CG640x480;
2804 return (0);
2805 case CONS_BELLTYPE: /* set bell type sound */
2806 if ((*(int *)data) & CONS_QUIET_BELL)
2807 vd->vd_flags |= VDF_QUIET_BELL;
2808 else
2809 vd->vd_flags &= ~VDF_QUIET_BELL;
2810 return (0);
2811 case CONS_GETINFO: {
2812 vid_info_t *vi = (vid_info_t *)data;
2813 if (vi->size != sizeof(struct vid_info))
2814 return (EINVAL);
2815
2816 if (vw == vd->vd_curwindow) {
2817 mtx_lock(&Giant);
2818 if ((kbd = vd->vd_keyboard) != NULL)
2819 vt_save_kbd_state(vw, kbd);
2820 mtx_unlock(&Giant);
2821 }
2822
2823 vi->m_num = vd->vd_curwindow->vw_number + 1;
2824 vi->mk_keylock = vw->vw_kbdstate & LOCK_MASK;
2825 /* XXX: other fields! */
2826 return (0);
2827 }
2828 case CONS_GETVERS:
2829 *(int *)data = 0x200;
2830 return (0);
2831 case CONS_MODEINFO:
2832 /* XXX */
2833 return (0);
2834 case CONS_MOUSECTL: {
2835 mouse_info_t *mouse = (mouse_info_t*)data;
2836
2837 /*
2838 * All the commands except MOUSE_SHOW nd MOUSE_HIDE
2839 * should not be applied to individual TTYs, but only to
2840 * consolectl.
2841 */
2842 switch (mouse->operation) {
2843 case MOUSE_HIDE:
2844 if (vd->vd_flags & VDF_MOUSECURSOR) {
2845 vd->vd_flags &= ~VDF_MOUSECURSOR;
2846 #ifndef SC_NO_CUTPASTE
2847 vt_mouse_state(VT_MOUSE_HIDE);
2848 #endif
2849 }
2850 return (0);
2851 case MOUSE_SHOW:
2852 if (!(vd->vd_flags & VDF_MOUSECURSOR)) {
2853 vd->vd_flags |= VDF_MOUSECURSOR;
2854 vd->vd_mx = vd->vd_width / 2;
2855 vd->vd_my = vd->vd_height / 2;
2856 #ifndef SC_NO_CUTPASTE
2857 vt_mouse_state(VT_MOUSE_SHOW);
2858 #endif
2859 }
2860 return (0);
2861 default:
2862 return (EINVAL);
2863 }
2864 }
2865 case PIO_VFONT: {
2866 struct vt_font *vf;
2867
2868 if (vd->vd_flags & VDF_TEXTMODE)
2869 return (ENOTSUP);
2870
2871 error = vtfont_load((void *)data, &vf);
2872 if (error != 0)
2873 return (error);
2874
2875 error = vt_change_font(vw, vf);
2876 vtfont_unref(vf);
2877 return (error);
2878 }
2879 case PIO_VFONT_DEFAULT: {
2880 /* Reset to default font. */
2881 error = vt_change_font(vw, vt_font_assigned);
2882 return (error);
2883 }
2884 case GIO_SCRNMAP: {
2885 scrmap_t *sm = (scrmap_t *)data;
2886
2887 /* We don't have screen maps, so return a handcrafted one. */
2888 for (i = 0; i < 256; i++)
2889 sm->scrmap[i] = i;
2890 return (0);
2891 }
2892 case KDSETMODE:
2893 /*
2894 * FIXME: This implementation is incomplete compared to
2895 * syscons.
2896 */
2897 switch (*(int *)data) {
2898 case KD_TEXT:
2899 case KD_TEXT1:
2900 case KD_PIXEL:
2901 vw->vw_flags &= ~VWF_GRAPHICS;
2902 break;
2903 case KD_GRAPHICS:
2904 vw->vw_flags |= VWF_GRAPHICS;
2905 break;
2906 }
2907 return (0);
2908 case KDENABIO: /* allow io operations */
2909 error = priv_check(td, PRIV_IO);
2910 if (error != 0)
2911 return (error);
2912 error = securelevel_gt(td->td_ucred, 0);
2913 if (error != 0)
2914 return (error);
2915 #if defined(__i386__)
2916 td->td_frame->tf_eflags |= PSL_IOPL;
2917 #elif defined(__amd64__)
2918 td->td_frame->tf_rflags |= PSL_IOPL;
2919 #endif
2920 return (0);
2921 case KDDISABIO: /* disallow io operations (default) */
2922 #if defined(__i386__)
2923 td->td_frame->tf_eflags &= ~PSL_IOPL;
2924 #elif defined(__amd64__)
2925 td->td_frame->tf_rflags &= ~PSL_IOPL;
2926 #endif
2927 return (0);
2928 case KDMKTONE: /* sound the bell */
2929 vtterm_beep(tm, *(u_int *)data);
2930 return (0);
2931 case KIOCSOUND: /* make tone (*data) hz */
2932 /* TODO */
2933 return (0);
2934 case CONS_SETKBD: /* set the new keyboard */
2935 mtx_lock(&Giant);
2936 error = 0;
2937 if (vd->vd_keyboard == NULL ||
2938 vd->vd_keyboard->kb_index != *(int *)data) {
2939 kbd = kbd_get_keyboard(*(int *)data);
2940 if (kbd == NULL) {
2941 mtx_unlock(&Giant);
2942 return (EINVAL);
2943 }
2944 i = kbd_allocate(kbd->kb_name, kbd->kb_unit,
2945 (void *)vd, vt_kbdevent, vd);
2946 if (i >= 0) {
2947 if ((kbd = vd->vd_keyboard) != NULL) {
2948 vt_save_kbd_state(vd->vd_curwindow, kbd);
2949 kbd_release(kbd, (void *)vd);
2950 }
2951 kbd = vd->vd_keyboard = kbd_get_keyboard(i);
2952
2953 vt_update_kbd_mode(vd->vd_curwindow, kbd);
2954 vt_update_kbd_state(vd->vd_curwindow, kbd);
2955 } else {
2956 error = EPERM; /* XXX */
2957 }
2958 }
2959 mtx_unlock(&Giant);
2960 return (error);
2961 case CONS_RELKBD: /* release the current keyboard */
2962 mtx_lock(&Giant);
2963 error = 0;
2964 if ((kbd = vd->vd_keyboard) != NULL) {
2965 vt_save_kbd_state(vd->vd_curwindow, kbd);
2966 error = kbd_release(kbd, (void *)vd);
2967 if (error == 0) {
2968 vd->vd_keyboard = NULL;
2969 }
2970 }
2971 mtx_unlock(&Giant);
2972 return (error);
2973 case VT_ACTIVATE: {
2974 int win;
2975 win = *(int *)data - 1;
2976 DPRINTF(5, "%s%d: VT_ACTIVATE ttyv%d ", SC_DRIVER_NAME,
2977 VT_UNIT(vw), win);
2978 if ((win >= VT_MAXWINDOWS) || (win < 0))
2979 return (EINVAL);
2980 return (vt_proc_window_switch(vd->vd_windows[win]));
2981 }
2982 case VT_GETACTIVE:
2983 *(int *)data = vd->vd_curwindow->vw_number + 1;
2984 return (0);
2985 case VT_GETINDEX:
2986 *(int *)data = vw->vw_number + 1;
2987 return (0);
2988 case VT_LOCKSWITCH:
2989 /* TODO: Check current state, switching can be in progress. */
2990 if ((*(int *)data) == 0x01)
2991 vw->vw_flags |= VWF_VTYLOCK;
2992 else if ((*(int *)data) == 0x02)
2993 vw->vw_flags &= ~VWF_VTYLOCK;
2994 else
2995 return (EINVAL);
2996 return (0);
2997 case VT_OPENQRY:
2998 VT_LOCK(vd);
2999 for (i = 0; i < VT_MAXWINDOWS; i++) {
3000 vw = vd->vd_windows[i];
3001 if (vw == NULL)
3002 continue;
3003 if (!(vw->vw_flags & VWF_OPENED)) {
3004 *(int *)data = vw->vw_number + 1;
3005 VT_UNLOCK(vd);
3006 return (0);
3007 }
3008 }
3009 VT_UNLOCK(vd);
3010 return (EINVAL);
3011 case VT_WAITACTIVE: {
3012 unsigned int idx;
3013
3014 error = 0;
3015
3016 idx = *(unsigned int *)data;
3017 if (idx > VT_MAXWINDOWS)
3018 return (EINVAL);
3019 if (idx > 0)
3020 vw = vd->vd_windows[idx - 1];
3021
3022 VT_LOCK(vd);
3023 while (vd->vd_curwindow != vw && error == 0)
3024 error = cv_wait_sig(&vd->vd_winswitch, &vd->vd_lock);
3025 VT_UNLOCK(vd);
3026 return (error);
3027 }
3028 case VT_SETMODE: { /* set screen switcher mode */
3029 struct vt_mode *mode;
3030 struct proc *p1;
3031
3032 mode = (struct vt_mode *)data;
3033 DPRINTF(5, "%s%d: VT_SETMODE ", SC_DRIVER_NAME, VT_UNIT(vw));
3034 if (vw->vw_smode.mode == VT_PROCESS) {
3035 p1 = pfind(vw->vw_pid);
3036 if (vw->vw_proc == p1 && vw->vw_proc != td->td_proc) {
3037 if (p1)
3038 PROC_UNLOCK(p1);
3039 DPRINTF(5, "error EPERM\n");
3040 return (EPERM);
3041 }
3042 if (p1)
3043 PROC_UNLOCK(p1);
3044 }
3045 if (mode->mode == VT_AUTO) {
3046 vw->vw_smode.mode = VT_AUTO;
3047 vw->vw_proc = NULL;
3048 vw->vw_pid = 0;
3049 DPRINTF(5, "VT_AUTO, ");
3050 if (vw == vw->vw_device->vd_windows[VT_CONSWINDOW])
3051 cnavailable(vw->vw_terminal->consdev, TRUE);
3052 /* were we in the middle of the vty switching process? */
3053 if (finish_vt_rel(vw, TRUE, &s) == 0)
3054 DPRINTF(5, "reset WAIT_REL, ");
3055 if (finish_vt_acq(vw) == 0)
3056 DPRINTF(5, "reset WAIT_ACQ, ");
3057 return (0);
3058 } else if (mode->mode == VT_PROCESS) {
3059 if (!ISSIGVALID(mode->relsig) ||
3060 !ISSIGVALID(mode->acqsig) ||
3061 !ISSIGVALID(mode->frsig)) {
3062 DPRINTF(5, "error EINVAL\n");
3063 return (EINVAL);
3064 }
3065 DPRINTF(5, "VT_PROCESS %d, ", td->td_proc->p_pid);
3066 bcopy(data, &vw->vw_smode, sizeof(struct vt_mode));
3067 vw->vw_proc = td->td_proc;
3068 vw->vw_pid = vw->vw_proc->p_pid;
3069 if (vw == vw->vw_device->vd_windows[VT_CONSWINDOW])
3070 cnavailable(vw->vw_terminal->consdev, FALSE);
3071 } else {
3072 DPRINTF(5, "VT_SETMODE failed, unknown mode %d\n",
3073 mode->mode);
3074 return (EINVAL);
3075 }
3076 DPRINTF(5, "\n");
3077 return (0);
3078 }
3079 case VT_GETMODE: /* get screen switcher mode */
3080 bcopy(&vw->vw_smode, data, sizeof(struct vt_mode));
3081 return (0);
3082
3083 case VT_RELDISP: /* screen switcher ioctl */
3084 /*
3085 * This must be the current vty which is in the VT_PROCESS
3086 * switching mode...
3087 */
3088 if ((vw != vd->vd_curwindow) || (vw->vw_smode.mode !=
3089 VT_PROCESS)) {
3090 return (EINVAL);
3091 }
3092 /* ...and this process is controlling it. */
3093 if (vw->vw_proc != td->td_proc) {
3094 return (EPERM);
3095 }
3096 error = EINVAL;
3097 switch(*(int *)data) {
3098 case VT_FALSE: /* user refuses to release screen, abort */
3099 if ((error = finish_vt_rel(vw, FALSE, &s)) == 0)
3100 DPRINTF(5, "%s%d: VT_RELDISP: VT_FALSE\n",
3101 SC_DRIVER_NAME, VT_UNIT(vw));
3102 break;
3103 case VT_TRUE: /* user has released screen, go on */
3104 /* finish_vt_rel(..., TRUE, ...) should not be locked */
3105 if (vw->vw_flags & VWF_SWWAIT_REL) {
3106 if ((error = finish_vt_rel(vw, TRUE, &s)) == 0)
3107 DPRINTF(5, "%s%d: VT_RELDISP: VT_TRUE\n",
3108 SC_DRIVER_NAME, VT_UNIT(vw));
3109 } else {
3110 error = EINVAL;
3111 }
3112 return (error);
3113 case VT_ACKACQ: /* acquire acknowledged, switch completed */
3114 if ((error = finish_vt_acq(vw)) == 0)
3115 DPRINTF(5, "%s%d: VT_RELDISP: VT_ACKACQ\n",
3116 SC_DRIVER_NAME, VT_UNIT(vw));
3117 break;
3118 default:
3119 break;
3120 }
3121 return (error);
3122 }
3123
3124 return (ENOIOCTL);
3125 }
3126
3127 static struct vt_window *
vt_allocate_window(struct vt_device * vd,unsigned int window)3128 vt_allocate_window(struct vt_device *vd, unsigned int window)
3129 {
3130 struct vt_window *vw;
3131 struct terminal *tm;
3132 term_pos_t size;
3133 struct winsize wsz;
3134
3135 vw = malloc(sizeof *vw, M_VT, M_WAITOK|M_ZERO);
3136 vw->vw_device = vd;
3137 vw->vw_number = window;
3138 vw->vw_kbdmode = K_XLATE;
3139
3140 if ((vd->vd_flags & VDF_TEXTMODE) == 0) {
3141 vw->vw_font = vtfont_ref(vt_font_assigned);
3142 vt_compute_drawable_area(vw);
3143 }
3144
3145 vt_termsize(vd, vw->vw_font, &size);
3146 vt_winsize(vd, vw->vw_font, &wsz);
3147 tm = vw->vw_terminal = terminal_alloc(&vt_termclass, vw);
3148 vw->vw_buf.vb_terminal = tm; /* must be set before vtbuf_init() */
3149 vtbuf_init(&vw->vw_buf, &size);
3150
3151 terminal_set_winsize(tm, &wsz);
3152 vd->vd_windows[window] = vw;
3153 TIMEOUT_TASK_INIT(taskqueue_thread, &vw->vw_timeout_task_dead, 0, &vt_switch_timer, vw);
3154
3155 return (vw);
3156 }
3157
3158 void
vt_upgrade(struct vt_device * vd)3159 vt_upgrade(struct vt_device *vd)
3160 {
3161 struct vt_window *vw;
3162 unsigned int i;
3163 int register_handlers;
3164
3165 if (!vty_enabled(VTY_VT))
3166 return;
3167 if (main_vd->vd_driver == NULL)
3168 return;
3169
3170 for (i = 0; i < VT_MAXWINDOWS; i++) {
3171 vw = vd->vd_windows[i];
3172 if (vw == NULL) {
3173 /* New window. */
3174 vw = vt_allocate_window(vd, i);
3175 }
3176 if (!(vw->vw_flags & VWF_READY)) {
3177 TIMEOUT_TASK_INIT(taskqueue_thread, &vw->vw_timeout_task_dead, 0, &vt_switch_timer, vw);
3178 terminal_maketty(vw->vw_terminal, "v%r", VT_UNIT(vw));
3179 vw->vw_flags |= VWF_READY;
3180 if (vw->vw_flags & VWF_CONSOLE) {
3181 /* For existing console window. */
3182 EVENTHANDLER_REGISTER(shutdown_pre_sync,
3183 vt_window_switch, vw, SHUTDOWN_PRI_DEFAULT);
3184 }
3185 }
3186 }
3187 VT_LOCK(vd);
3188 if (vd->vd_curwindow == NULL)
3189 vd->vd_curwindow = vd->vd_windows[VT_CONSWINDOW];
3190
3191 register_handlers = 0;
3192 if (!(vd->vd_flags & VDF_ASYNC)) {
3193 /* Attach keyboard. */
3194 vt_allocate_keyboard(vd);
3195
3196 /* Init 25 Hz timer. */
3197 callout_init_mtx(&vd->vd_timer, &vd->vd_lock, 0);
3198
3199 /*
3200 * Start timer when everything ready.
3201 * Note that the operations here are purposefully ordered.
3202 * We need to ensure vd_timer_armed is non-zero before we set
3203 * the VDF_ASYNC flag. That prevents this function from
3204 * racing with vt_resume_flush_timer() to update the
3205 * callout structure.
3206 */
3207 atomic_add_acq_int(&vd->vd_timer_armed, 1);
3208 vd->vd_flags |= VDF_ASYNC;
3209 callout_reset(&vd->vd_timer, hz / VT_TIMERFREQ, vt_timer, vd);
3210 register_handlers = 1;
3211 }
3212
3213 VT_UNLOCK(vd);
3214
3215 /* Refill settings with new sizes. */
3216 vt_resize(vd);
3217
3218 if (register_handlers) {
3219 /* Register suspend/resume handlers. */
3220 EVENTHANDLER_REGISTER(power_suspend_early, vt_suspend_handler,
3221 vd, EVENTHANDLER_PRI_ANY);
3222 EVENTHANDLER_REGISTER(power_resume, vt_resume_handler, vd,
3223 EVENTHANDLER_PRI_ANY);
3224 }
3225 }
3226
3227 static void
vt_resize(struct vt_device * vd)3228 vt_resize(struct vt_device *vd)
3229 {
3230 struct vt_window *vw;
3231 int i;
3232
3233 for (i = 0; i < VT_MAXWINDOWS; i++) {
3234 vw = vd->vd_windows[i];
3235 VT_LOCK(vd);
3236 /* Assign default font to window, if not textmode. */
3237 if (!(vd->vd_flags & VDF_TEXTMODE) && vw->vw_font == NULL)
3238 vw->vw_font = vtfont_ref(vt_font_assigned);
3239 VT_UNLOCK(vd);
3240
3241 /* Resize terminal windows */
3242 while (vt_change_font(vw, vw->vw_font) == EBUSY) {
3243 DPRINTF(100, "%s: vt_change_font() is busy, "
3244 "window %d\n", __func__, i);
3245 }
3246 }
3247 }
3248
3249 static void
vt_replace_backend(const struct vt_driver * drv,void * softc)3250 vt_replace_backend(const struct vt_driver *drv, void *softc)
3251 {
3252 struct vt_device *vd;
3253
3254 vd = main_vd;
3255
3256 if (vd->vd_flags & VDF_ASYNC) {
3257 /* Stop vt_flush periodic task. */
3258 VT_LOCK(vd);
3259 vt_suspend_flush_timer(vd);
3260 VT_UNLOCK(vd);
3261 /*
3262 * Mute current terminal until we done. vt_change_font (called
3263 * from vt_resize) will unmute it.
3264 */
3265 terminal_mute(vd->vd_curwindow->vw_terminal, 1);
3266 }
3267
3268 /*
3269 * Reset VDF_TEXTMODE flag, driver who require that flag (vt_vga) will
3270 * set it.
3271 */
3272 VT_LOCK(vd);
3273 vd->vd_flags &= ~VDF_TEXTMODE;
3274
3275 if (drv != NULL) {
3276 /*
3277 * We want to upgrade from the current driver to the
3278 * given driver.
3279 */
3280
3281 vd->vd_prev_driver = vd->vd_driver;
3282 vd->vd_prev_softc = vd->vd_softc;
3283 vd->vd_driver = drv;
3284 vd->vd_softc = softc;
3285
3286 vd->vd_driver->vd_init(vd);
3287 } else if (vd->vd_prev_driver != NULL && vd->vd_prev_softc != NULL) {
3288 /*
3289 * No driver given: we want to downgrade to the previous
3290 * driver.
3291 */
3292 const struct vt_driver *old_drv;
3293 void *old_softc;
3294
3295 old_drv = vd->vd_driver;
3296 old_softc = vd->vd_softc;
3297
3298 vd->vd_driver = vd->vd_prev_driver;
3299 vd->vd_softc = vd->vd_prev_softc;
3300 vd->vd_prev_driver = NULL;
3301 vd->vd_prev_softc = NULL;
3302
3303 vd->vd_flags |= VDF_DOWNGRADE;
3304
3305 vd->vd_driver->vd_init(vd);
3306
3307 if (old_drv->vd_fini)
3308 old_drv->vd_fini(vd, old_softc);
3309
3310 vd->vd_flags &= ~VDF_DOWNGRADE;
3311 }
3312
3313 VT_UNLOCK(vd);
3314
3315 /* Update windows sizes and initialize last items. */
3316 vt_upgrade(vd);
3317
3318 /*
3319 * Give a chance to the new backend to run the post-switch code, for
3320 * instance to refresh the screen.
3321 */
3322 if (vd->vd_driver->vd_postswitch)
3323 vd->vd_driver->vd_postswitch(vd);
3324
3325 #ifdef DEV_SPLASH
3326 if (vd->vd_flags & VDF_SPLASH)
3327 vtterm_splash(vd);
3328 #endif
3329
3330 if (vd->vd_flags & VDF_ASYNC) {
3331 /* Allow to put chars now. */
3332 terminal_mute(vd->vd_curwindow->vw_terminal, 0);
3333 /* Rerun timer for screen updates. */
3334 vt_resume_flush_timer(vd->vd_curwindow, 0);
3335 }
3336
3337 /*
3338 * Register as console. If it already registered, cnadd() will ignore
3339 * it.
3340 */
3341 termcn_cnregister(vd->vd_windows[VT_CONSWINDOW]->vw_terminal);
3342 }
3343
3344 static void
vt_suspend_handler(void * priv)3345 vt_suspend_handler(void *priv)
3346 {
3347 struct vt_device *vd;
3348
3349 vd = priv;
3350 vd->vd_flags |= VDF_SUSPENDED;
3351 if (vd->vd_driver != NULL && vd->vd_driver->vd_suspend != NULL)
3352 vd->vd_driver->vd_suspend(vd);
3353 }
3354
3355 static void
vt_resume_handler(void * priv)3356 vt_resume_handler(void *priv)
3357 {
3358 struct vt_device *vd;
3359
3360 vd = priv;
3361 if (vd->vd_driver != NULL && vd->vd_driver->vd_resume != NULL)
3362 vd->vd_driver->vd_resume(vd);
3363 vd->vd_flags &= ~VDF_SUSPENDED;
3364 }
3365
3366 int
vt_allocate(const struct vt_driver * drv,void * softc)3367 vt_allocate(const struct vt_driver *drv, void *softc)
3368 {
3369
3370 if (!vty_enabled(VTY_VT))
3371 return (EINVAL);
3372
3373 if (main_vd->vd_driver == NULL) {
3374 main_vd->vd_driver = drv;
3375 printf("VT: initialize with new VT driver \"%s\".\n",
3376 drv->vd_name);
3377 } else {
3378 /*
3379 * Check if have rights to replace current driver. For example:
3380 * it is bad idea to replace KMS driver with generic VGA one.
3381 */
3382 if (drv->vd_priority <= main_vd->vd_driver->vd_priority) {
3383 printf("VT: Driver priority %d too low. Current %d\n ",
3384 drv->vd_priority, main_vd->vd_driver->vd_priority);
3385 return (EEXIST);
3386 }
3387 printf("VT: Replacing driver \"%s\" with new \"%s\".\n",
3388 main_vd->vd_driver->vd_name, drv->vd_name);
3389 }
3390
3391 vt_replace_backend(drv, softc);
3392
3393 return (0);
3394 }
3395
3396 int
vt_deallocate(const struct vt_driver * drv,void * softc)3397 vt_deallocate(const struct vt_driver *drv, void *softc)
3398 {
3399
3400 if (!vty_enabled(VTY_VT))
3401 return (EINVAL);
3402
3403 if (main_vd->vd_prev_driver == NULL ||
3404 main_vd->vd_driver != drv ||
3405 main_vd->vd_softc != softc)
3406 return (EPERM);
3407
3408 printf("VT: Switching back from \"%s\" to \"%s\".\n",
3409 main_vd->vd_driver->vd_name, main_vd->vd_prev_driver->vd_name);
3410
3411 vt_replace_backend(NULL, NULL);
3412
3413 return (0);
3414 }
3415
3416 void
vt_suspend(struct vt_device * vd)3417 vt_suspend(struct vt_device *vd)
3418 {
3419 int error;
3420
3421 if (vt_suspendswitch == 0)
3422 return;
3423 /* Save current window. */
3424 vd->vd_savedwindow = vd->vd_curwindow;
3425 /* Ask holding process to free window and switch to console window */
3426 vt_proc_window_switch(vd->vd_windows[VT_CONSWINDOW]);
3427
3428 /* Wait for the window switch to complete. */
3429 error = 0;
3430 VT_LOCK(vd);
3431 while (vd->vd_curwindow != vd->vd_windows[VT_CONSWINDOW] && error == 0)
3432 error = cv_wait_sig(&vd->vd_winswitch, &vd->vd_lock);
3433 VT_UNLOCK(vd);
3434 }
3435
3436 void
vt_resume(struct vt_device * vd)3437 vt_resume(struct vt_device *vd)
3438 {
3439
3440 if (vt_suspendswitch == 0)
3441 return;
3442 /* Switch back to saved window, if any */
3443 vt_proc_window_switch(vd->vd_savedwindow);
3444 vd->vd_savedwindow = NULL;
3445 }
3446