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