xref: /freebsd/sys/dev/syscons/scmouse.c (revision 3157ba21)
1 /*-
2  * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer as
10  *    the first lines of this file unmodified.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18  * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25  */
26 
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
29 
30 #include "opt_syscons.h"
31 
32 #include <sys/param.h>
33 #include <sys/systm.h>
34 #include <sys/conf.h>
35 #include <sys/consio.h>
36 #include <sys/fbio.h>
37 #include <sys/limits.h>
38 #include <sys/lock.h>
39 #include <sys/malloc.h>
40 #include <sys/mouse.h>
41 #include <sys/mutex.h>
42 #include <sys/proc.h>
43 #include <sys/random.h>
44 #include <sys/signalvar.h>
45 #include <sys/tty.h>
46 
47 #include <dev/syscons/syscons.h>
48 
49 #ifdef SC_TWOBUTTON_MOUSE
50 #define SC_MOUSE_PASTEBUTTON	MOUSE_BUTTON3DOWN	/* right button */
51 #define SC_MOUSE_EXTENDBUTTON	MOUSE_BUTTON2DOWN	/* not really used */
52 #else
53 #define SC_MOUSE_PASTEBUTTON	MOUSE_BUTTON2DOWN	/* middle button */
54 #define SC_MOUSE_EXTENDBUTTON	MOUSE_BUTTON3DOWN	/* right button */
55 #endif /* SC_TWOBUTTON_MOUSE */
56 
57 #define SC_WAKEUP_DELTA		20
58 
59 /* for backward compatibility */
60 #define OLD_CONS_MOUSECTL	_IOWR('c', 10, old_mouse_info_t)
61 
62 typedef struct old_mouse_data {
63     int x;
64     int y;
65     int buttons;
66 } old_mouse_data_t;
67 
68 typedef struct old_mouse_info {
69     int operation;
70     union {
71 	struct old_mouse_data data;
72 	struct mouse_mode mode;
73     } u;
74 } old_mouse_info_t;
75 
76 #ifndef SC_NO_SYSMOUSE
77 
78 /* local variables */
79 #ifndef SC_NO_CUTPASTE
80 static int		cut_buffer_size;
81 static u_char		*cut_buffer;
82 #endif
83 
84 /* local functions */
85 static void set_mouse_pos(scr_stat *scp);
86 #ifndef SC_NO_CUTPASTE
87 static int skip_spc_right(scr_stat *scp, int p);
88 static int skip_spc_left(scr_stat *scp, int p);
89 static void mouse_cut(scr_stat *scp);
90 static void mouse_cut_start(scr_stat *scp);
91 static void mouse_cut_end(scr_stat *scp);
92 static void mouse_cut_word(scr_stat *scp);
93 static void mouse_cut_line(scr_stat *scp);
94 static void mouse_cut_extend(scr_stat *scp);
95 #endif /* SC_NO_CUTPASTE */
96 
97 #ifndef SC_NO_CUTPASTE
98 /* allocate a cut buffer */
99 void
100 sc_alloc_cut_buffer(scr_stat *scp, int wait)
101 {
102     u_char *p;
103 
104     if ((cut_buffer == NULL)
105 	|| (cut_buffer_size < scp->xsize * scp->ysize + 1)) {
106 	p = cut_buffer;
107 	cut_buffer = NULL;
108 	if (p != NULL)
109 	    free(p, M_DEVBUF);
110 	cut_buffer_size = scp->xsize * scp->ysize + 1;
111 	p = (u_char *)malloc(cut_buffer_size,
112 			     M_DEVBUF, (wait) ? M_WAITOK : M_NOWAIT);
113 	if (p != NULL)
114 	    p[0] = '\0';
115 	cut_buffer = p;
116     }
117 }
118 #endif /* SC_NO_CUTPASTE */
119 
120 static void
121 sc_mouse_input_button(scr_stat *scp, int button)
122 {
123 	char mouseb[6] = "\x1B[M";
124 
125 	mouseb[3] = ' ' + button;
126 	mouseb[4] = '!' + scp->mouse_pos % scp->xsize;
127 	mouseb[5] = '!' + scp->mouse_pos / scp->xsize;
128 	sc_respond(scp, mouseb, sizeof mouseb, 1);
129 }
130 
131 static void
132 sc_mouse_input(scr_stat *scp, mouse_info_t *mouse)
133 {
134 
135 	switch (mouse->operation) {
136 	case MOUSE_BUTTON_EVENT:
137 		if (mouse->u.event.value > 0) {
138 			/* Mouse button pressed. */
139 			if (mouse->u.event.id & MOUSE_BUTTON1DOWN)
140 				sc_mouse_input_button(scp, 0);
141 			if (mouse->u.event.id & MOUSE_BUTTON2DOWN)
142 				sc_mouse_input_button(scp, 1);
143 			if (mouse->u.event.id & MOUSE_BUTTON3DOWN)
144 				sc_mouse_input_button(scp, 2);
145 		} else {
146 			/* Mouse button released. */
147 			sc_mouse_input_button(scp, 3);
148 		}
149 		break;
150 	case MOUSE_MOTION_EVENT:
151 		if (mouse->u.data.z < 0) {
152 			/* Scroll up. */
153 			sc_mouse_input_button(scp, 64);
154 		} else if (mouse->u.data.z > 0) {
155 			/* Scroll down. */
156 			sc_mouse_input_button(scp, 65);
157 		}
158 		break;
159 	}
160 }
161 
162 /* move mouse */
163 void
164 sc_mouse_move(scr_stat *scp, int x, int y)
165 {
166     int s;
167 
168     s = spltty();
169     scp->mouse_xpos = scp->mouse_oldxpos = x;
170     scp->mouse_ypos = scp->mouse_oldypos = y;
171     if (scp->font_size <= 0 || scp->font_width <= 0)
172 	scp->mouse_pos = scp->mouse_oldpos = 0;
173     else
174 	scp->mouse_pos = scp->mouse_oldpos =
175 	    (y/scp->font_size - scp->yoff)*scp->xsize + x/scp->font_width -
176 	    scp->xoff;
177     scp->status |= MOUSE_MOVED;
178     splx(s);
179 }
180 
181 /* adjust mouse position */
182 static void
183 set_mouse_pos(scr_stat *scp)
184 {
185     if (scp->mouse_xpos < scp->xoff*scp->font_width)
186 	scp->mouse_xpos = scp->xoff*scp->font_width;
187     if (scp->mouse_ypos < scp->yoff*scp->font_size)
188 	scp->mouse_ypos = scp->yoff*scp->font_size;
189     if (ISGRAPHSC(scp)) {
190         if (scp->mouse_xpos > scp->xpixel-1)
191 	    scp->mouse_xpos = scp->xpixel-1;
192         if (scp->mouse_ypos > scp->ypixel-1)
193 	    scp->mouse_ypos = scp->ypixel-1;
194 	return;
195     } else {
196 	if (scp->mouse_xpos > (scp->xsize + scp->xoff)*scp->font_width - 1)
197 	    scp->mouse_xpos = (scp->xsize + scp->xoff)*scp->font_width - 1;
198 	if (scp->mouse_ypos > (scp->ysize + scp->yoff)*scp->font_size - 1)
199 	    scp->mouse_ypos = (scp->ysize + scp->yoff)*scp->font_size - 1;
200     }
201 
202     if ((scp->mouse_xpos != scp->mouse_oldxpos || scp->mouse_ypos != scp->mouse_oldypos)
203 	&& (scp->font_size != 0 && scp->font_width != 0)) {
204 	scp->status |= MOUSE_MOVED;
205     	scp->mouse_pos =
206 	    (scp->mouse_ypos/scp->font_size - scp->yoff)*scp->xsize
207 		+ scp->mouse_xpos/scp->font_width - scp->xoff;
208 #ifndef SC_NO_CUTPASTE
209 	if ((scp->status & MOUSE_VISIBLE) && (scp->status & MOUSE_CUTTING))
210 	    mouse_cut(scp);
211 #endif
212     }
213 }
214 
215 #ifndef SC_NO_CUTPASTE
216 
217 void
218 sc_draw_mouse_image(scr_stat *scp)
219 {
220     if (ISGRAPHSC(scp))
221 	return;
222 
223     SC_VIDEO_LOCK(scp->sc);
224     (*scp->rndr->draw_mouse)(scp, scp->mouse_xpos, scp->mouse_ypos, TRUE);
225     scp->mouse_oldpos = scp->mouse_pos;
226     scp->mouse_oldxpos = scp->mouse_xpos;
227     scp->mouse_oldypos = scp->mouse_ypos;
228     scp->status |= MOUSE_VISIBLE;
229     SC_VIDEO_UNLOCK(scp->sc);
230 }
231 
232 void
233 sc_remove_mouse_image(scr_stat *scp)
234 {
235     int size;
236     int i;
237 
238     if (ISGRAPHSC(scp))
239 	return;
240 
241     SC_VIDEO_LOCK(scp->sc);
242     (*scp->rndr->draw_mouse)(scp,
243 			     (scp->mouse_oldpos%scp->xsize + scp->xoff)
244 			         * scp->font_width,
245 			     (scp->mouse_oldpos/scp->xsize + scp->yoff)
246 				 * scp->font_size,
247 			     FALSE);
248     size = scp->xsize*scp->ysize;
249     i = scp->mouse_oldpos;
250     mark_for_update(scp, i);
251     mark_for_update(scp, i);
252 #ifndef PC98
253     if (i + scp->xsize + 1 < size) {
254 	mark_for_update(scp, i + scp->xsize + 1);
255     } else if (i + scp->xsize < size) {
256 	mark_for_update(scp, i + scp->xsize);
257     } else if (i + 1 < size) {
258 	mark_for_update(scp, i + 1);
259     }
260 #endif /* PC98 */
261     scp->status &= ~MOUSE_VISIBLE;
262     SC_VIDEO_UNLOCK(scp->sc);
263 }
264 
265 int
266 sc_inside_cutmark(scr_stat *scp, int pos)
267 {
268     int start;
269     int end;
270 
271     if (scp->mouse_cut_end < 0)
272 	return FALSE;
273     if (scp->mouse_cut_start <= scp->mouse_cut_end) {
274 	start = scp->mouse_cut_start;
275 	end = scp->mouse_cut_end;
276     } else {
277 	start = scp->mouse_cut_end;
278 	end = scp->mouse_cut_start - 1;
279     }
280     return ((start <= pos) && (pos <= end));
281 }
282 
283 void
284 sc_remove_cutmarking(scr_stat *scp)
285 {
286     int s;
287 
288     s = spltty();
289     if (scp->mouse_cut_end >= 0) {
290 	mark_for_update(scp, scp->mouse_cut_start);
291 	mark_for_update(scp, scp->mouse_cut_end);
292     }
293     scp->mouse_cut_start = scp->xsize*scp->ysize;
294     scp->mouse_cut_end = -1;
295     splx(s);
296     scp->status &= ~MOUSE_CUTTING;
297 }
298 
299 void
300 sc_remove_all_cutmarkings(sc_softc_t *sc)
301 {
302     scr_stat *scp;
303     int i;
304 
305     /* delete cut markings in all vtys */
306     for (i = 0; i < sc->vtys; ++i) {
307 	scp = SC_STAT(sc->dev[i]);
308 	if (scp == NULL)
309 	    continue;
310 	sc_remove_cutmarking(scp);
311     }
312 }
313 
314 void
315 sc_remove_all_mouse(sc_softc_t *sc)
316 {
317     scr_stat *scp;
318     int i;
319 
320     for (i = 0; i < sc->vtys; ++i) {
321 	scp = SC_STAT(sc->dev[i]);
322 	if (scp == NULL)
323 	    continue;
324 	if (scp->status & MOUSE_VISIBLE) {
325 	    scp->status &= ~MOUSE_VISIBLE;
326 	    mark_all(scp);
327 	}
328     }
329 }
330 
331 #define IS_SPACE_CHAR(c)	(((c) & 0xff) == ' ')
332 
333 #ifdef SC_CUT_SPACES2TABS
334 #define IS_BLANK_CHAR(c)	(((c) & 0xff) == ' ' || ((c) & 0xff) == '\t')
335 #else
336 #define IS_BLANK_CHAR(c)	IS_SPACE_CHAR(c)
337 #endif /* SC_CUT_SPACES2TABS */
338 
339 #ifdef SC_CUT_SEPCHARS
340 #define IS_SEP_CHAR(c)		(index(SC_CUT_SEPCHARS, (c) & 0xff) != NULL)
341 #else
342 #define IS_SEP_CHAR(c)		IS_SPACE_CHAR(c)
343 #endif /* SC_CUT_SEPCHARS */
344 
345 /* skip spaces to right */
346 static int
347 skip_spc_right(scr_stat *scp, int p)
348 {
349     int c;
350     int i;
351 
352     for (i = p % scp->xsize; i < scp->xsize; ++i) {
353 	c = sc_vtb_getc(&scp->vtb, p);
354 	if (!IS_SPACE_CHAR(c))
355 	    break;
356 	++p;
357     }
358     return i;
359 }
360 
361 /* skip spaces to left */
362 static int
363 skip_spc_left(scr_stat *scp, int p)
364 {
365     int c;
366     int i;
367 
368     for (i = p-- % scp->xsize - 1; i >= 0; --i) {
369 	c = sc_vtb_getc(&scp->vtb, p);
370 	if (!IS_SPACE_CHAR(c))
371 	    break;
372 	--p;
373     }
374     return i;
375 }
376 
377 static void
378 mouse_do_cut(scr_stat *scp, int from, int to)
379 {
380     int blank;
381     int i;
382     int leadspaces;
383     int p;
384     int s;
385 
386     for (p = from, i = blank = leadspaces = 0; p <= to; ++p) {
387 	cut_buffer[i] = sc_vtb_getc(&scp->vtb, p);
388 	/* Be prepared that sc_vtb_getc() can return '\0' */
389 	if (cut_buffer[i] == '\0')
390 	    cut_buffer[i] = ' ';
391 #ifdef SC_CUT_SPACES2TABS
392 	if (leadspaces != -1) {
393 	    if (IS_SPACE_CHAR(cut_buffer[i])) {
394 		leadspaces++;
395 		/* Check that we are at tabstop position */
396 		if ((p % scp->xsize) % 8 == 7) {
397 		    i -= leadspaces - 1;
398 		    cut_buffer[i] = '\t';
399 		    leadspaces = 0;
400 		}
401 	    } else {
402 		leadspaces = -1;
403 	    }
404 	}
405 #endif /* SC_CUT_SPACES2TABS */
406 	/* remember the position of the last non-space char */
407 	if (!IS_BLANK_CHAR(cut_buffer[i]))
408 	    blank = i + 1;	/* the first space after the last non-space */
409 	++i;
410 	/* trim trailing blank when crossing lines */
411 	if ((p % scp->xsize) == (scp->xsize - 1)) {
412 	    cut_buffer[blank++] = '\r';
413 	    i = blank;
414 	    leadspaces = 0;
415 	}
416     }
417     cut_buffer[i] = '\0';
418 
419     /* remove the current marking */
420     s = spltty();
421     if (scp->mouse_cut_start <= scp->mouse_cut_end) {
422 	mark_for_update(scp, scp->mouse_cut_start);
423 	mark_for_update(scp, scp->mouse_cut_end);
424     } else if (scp->mouse_cut_end >= 0) {
425 	mark_for_update(scp, scp->mouse_cut_end);
426 	mark_for_update(scp, scp->mouse_cut_start);
427     }
428 
429     /* mark the new region */
430     scp->mouse_cut_start = from;
431     scp->mouse_cut_end = to;
432     mark_for_update(scp, from);
433     mark_for_update(scp, to);
434     splx(s);
435 }
436 
437 /* copy marked region to the cut buffer */
438 static void
439 mouse_cut(scr_stat *scp)
440 {
441     int start;
442     int end;
443     int from;
444     int to;
445     int c;
446     int p;
447     int s;
448     int i;
449 
450     start = scp->mouse_cut_start;
451     end = scp->mouse_cut_end;
452     if (scp->mouse_pos >= start) {
453 	from = start;
454 	to = end = scp->mouse_pos;
455     } else {
456 	from = end = scp->mouse_pos;
457 	to = start - 1;
458     }
459     p = to;
460     for (i = p % scp->xsize; i < scp->xsize; ++i) {
461 	c = sc_vtb_getc(&scp->vtb, p);
462 	if (!IS_SPACE_CHAR(c))
463 	    break;
464 	++p;
465     }
466     /* if there is nothing but blank chars, trim them, but mark towards eol */
467     if (i == scp->xsize) {
468 	if (end >= start)
469 	    to = end = p - 1;
470 	else
471 	    to = start = p;
472     }
473     mouse_do_cut(scp, from, to);
474     s = spltty();
475     scp->mouse_cut_start = start;
476     scp->mouse_cut_end = end;
477     splx(s);
478 }
479 
480 /* a mouse button is pressed, start cut operation */
481 static void
482 mouse_cut_start(scr_stat *scp)
483 {
484     int i;
485     int s;
486 
487     if (scp->status & MOUSE_VISIBLE) {
488 	sc_remove_all_cutmarkings(scp->sc);
489 	if ((scp->mouse_pos == scp->mouse_cut_start) &&
490 	    (scp->mouse_pos == scp->mouse_cut_end)) {
491 	    cut_buffer[0] = '\0';
492 	    return;
493 	} else if (skip_spc_right(scp, scp->mouse_pos) >= scp->xsize) {
494 	    /* if the pointer is on trailing blank chars, mark towards eol */
495 	    i = skip_spc_left(scp, scp->mouse_pos) + 1;
496 	    s = spltty();
497 	    scp->mouse_cut_start =
498 	        (scp->mouse_pos / scp->xsize) * scp->xsize + i;
499 	    scp->mouse_cut_end =
500 	        (scp->mouse_pos / scp->xsize + 1) * scp->xsize - 1;
501 	    splx(s);
502 	    cut_buffer[0] = '\r';
503 	} else {
504 	    s = spltty();
505 	    scp->mouse_cut_start = scp->mouse_pos;
506 	    scp->mouse_cut_end = scp->mouse_cut_start;
507 	    splx(s);
508 	    cut_buffer[0] = sc_vtb_getc(&scp->vtb, scp->mouse_cut_start);
509 	}
510 	cut_buffer[1] = '\0';
511 	scp->status |= MOUSE_CUTTING;
512     	mark_all(scp);	/* this is probably overkill XXX */
513     }
514 }
515 
516 /* end of cut operation */
517 static void
518 mouse_cut_end(scr_stat *scp)
519 {
520     if (scp->status & MOUSE_VISIBLE)
521 	scp->status &= ~MOUSE_CUTTING;
522 }
523 
524 /* copy a word under the mouse pointer */
525 static void
526 mouse_cut_word(scr_stat *scp)
527 {
528     int start;
529     int end;
530     int sol;
531     int eol;
532     int c;
533     int j;
534     int len;
535 
536     /*
537      * Because we don't have locale information in the kernel,
538      * we only distinguish space char and non-space chars.  Punctuation
539      * chars, symbols and other regular chars are all treated alike
540      * unless user specified SC_CUT_SEPCHARS in his kernel config file.
541      */
542     if (scp->status & MOUSE_VISIBLE) {
543 	sol = (scp->mouse_pos / scp->xsize) * scp->xsize;
544 	eol = sol + scp->xsize;
545 	c = sc_vtb_getc(&scp->vtb, scp->mouse_pos);
546 	if (IS_SEP_CHAR(c)) {
547 	    /* blank space */
548 	    for (j = scp->mouse_pos; j >= sol; --j) {
549 		c = sc_vtb_getc(&scp->vtb, j);
550 	        if (!IS_SEP_CHAR(c))
551 		    break;
552 	    }
553 	    start = ++j;
554 	    for (j = scp->mouse_pos; j < eol; ++j) {
555 		c = sc_vtb_getc(&scp->vtb, j);
556 	        if (!IS_SEP_CHAR(c))
557 		    break;
558 	    }
559 	    end = j - 1;
560 	} else {
561 	    /* non-space word */
562 	    for (j = scp->mouse_pos; j >= sol; --j) {
563 		c = sc_vtb_getc(&scp->vtb, j);
564 	        if (IS_SEP_CHAR(c))
565 		    break;
566 	    }
567 	    start = ++j;
568 	    for (j = scp->mouse_pos; j < eol; ++j) {
569 		c = sc_vtb_getc(&scp->vtb, j);
570 	        if (IS_SEP_CHAR(c))
571 		    break;
572 	    }
573 	    end = j - 1;
574 	}
575 
576 	/* copy the found word */
577 	mouse_do_cut(scp, start, end);
578 	len = strlen(cut_buffer);
579 	if (cut_buffer[len - 1] == '\r')
580 	    cut_buffer[len - 1] = '\0';
581     }
582 }
583 
584 /* copy a line under the mouse pointer */
585 static void
586 mouse_cut_line(scr_stat *scp)
587 {
588     int len;
589     int from;
590 
591     if (scp->status & MOUSE_VISIBLE) {
592 	from = (scp->mouse_pos / scp->xsize) * scp->xsize;
593 	mouse_do_cut(scp, from, from + scp->xsize - 1);
594 	len = strlen(cut_buffer);
595 	if (cut_buffer[len - 1] == '\r')
596 	    cut_buffer[len - 1] = '\0';
597 	scp->status |= MOUSE_CUTTING;
598     }
599 }
600 
601 /* extend the marked region to the mouse pointer position */
602 static void
603 mouse_cut_extend(scr_stat *scp)
604 {
605     int start;
606     int end;
607     int s;
608 
609     if ((scp->status & MOUSE_VISIBLE) && !(scp->status & MOUSE_CUTTING)
610 	&& (scp->mouse_cut_end >= 0)) {
611 	if (scp->mouse_cut_start <= scp->mouse_cut_end) {
612 	    start = scp->mouse_cut_start;
613 	    end = scp->mouse_cut_end;
614 	} else {
615 	    start = scp->mouse_cut_end;
616 	    end = scp->mouse_cut_start - 1;
617 	}
618 	s = spltty();
619 	if (scp->mouse_pos > end) {
620 	    scp->mouse_cut_start = start;
621 	    scp->mouse_cut_end = end;
622 	} else if (scp->mouse_pos < start) {
623 	    scp->mouse_cut_start = end + 1;
624 	    scp->mouse_cut_end = start;
625 	} else {
626 	    if (scp->mouse_pos - start > end + 1 - scp->mouse_pos) {
627 		scp->mouse_cut_start = start;
628 		scp->mouse_cut_end = end;
629 	    } else {
630 		scp->mouse_cut_start = end + 1;
631 		scp->mouse_cut_end = start;
632 	    }
633 	}
634 	splx(s);
635 	mouse_cut(scp);
636 	scp->status |= MOUSE_CUTTING;
637     }
638 }
639 
640 /* paste cut buffer contents into the current vty */
641 void
642 sc_mouse_paste(scr_stat *scp)
643 {
644     sc_paste(scp, cut_buffer, strlen(cut_buffer));
645 }
646 
647 #endif /* SC_NO_CUTPASTE */
648 
649 int
650 sc_mouse_ioctl(struct tty *tp, u_long cmd, caddr_t data, struct thread *td)
651 {
652     mouse_info_t *mouse;
653     mouse_info_t buf;
654     scr_stat *cur_scp;
655     scr_stat *scp;
656     struct proc *p1;
657     int s;
658     int f;
659 
660     scp = SC_STAT(tp);
661 
662     switch (cmd) {
663 
664     case CONS_MOUSECTL:		/* control mouse arrow */
665     case OLD_CONS_MOUSECTL:
666 
667 	mouse = (mouse_info_t*)data;
668 
669 	random_harvest(mouse, sizeof(mouse_info_t), 2, 0, RANDOM_MOUSE);
670 
671 	if (cmd == OLD_CONS_MOUSECTL) {
672 	    static u_char swapb[] = { 0, 4, 2, 6, 1, 5, 3, 7 };
673 	    old_mouse_info_t *old_mouse = (old_mouse_info_t *)data;
674 
675 	    mouse = &buf;
676 	    mouse->operation = old_mouse->operation;
677 	    switch (mouse->operation) {
678 	    case MOUSE_MODE:
679 		mouse->u.mode = old_mouse->u.mode;
680 		break;
681 	    case MOUSE_SHOW:
682 	    case MOUSE_HIDE:
683 		break;
684 	    case MOUSE_MOVEABS:
685 	    case MOUSE_MOVEREL:
686 	    case MOUSE_ACTION:
687 		mouse->u.data.x = old_mouse->u.data.x;
688 		mouse->u.data.y = old_mouse->u.data.y;
689 		mouse->u.data.z = 0;
690 		mouse->u.data.buttons = swapb[old_mouse->u.data.buttons & 0x7];
691 		break;
692 	    case MOUSE_GETINFO:
693 		old_mouse->u.data.x = scp->mouse_xpos;
694 		old_mouse->u.data.y = scp->mouse_ypos;
695 		old_mouse->u.data.buttons = swapb[scp->mouse_buttons & 0x7];
696 		return 0;
697 	    default:
698 		return EINVAL;
699 	    }
700 	}
701 
702 	cur_scp = scp->sc->cur_scp;
703 
704 	switch (mouse->operation) {
705 	case MOUSE_MODE:
706 	    if (ISSIGVALID(mouse->u.mode.signal)) {
707 		scp->mouse_signal = mouse->u.mode.signal;
708 		scp->mouse_proc = td->td_proc;
709 		scp->mouse_pid = td->td_proc->p_pid;
710 	    }
711 	    else {
712 		scp->mouse_signal = 0;
713 		scp->mouse_proc = NULL;
714 		scp->mouse_pid = 0;
715 	    }
716 	    return 0;
717 
718 	case MOUSE_SHOW:
719 	    s = spltty();
720 	    if (!(scp->sc->flags & SC_MOUSE_ENABLED)) {
721 		scp->sc->flags |= SC_MOUSE_ENABLED;
722 		cur_scp->status &= ~MOUSE_HIDDEN;
723 		if (!ISGRAPHSC(cur_scp))
724 		    mark_all(cur_scp);
725 	    }
726 	    splx(s);
727 	    return 0;
728 	    /* NOTREACHED */
729 
730 	case MOUSE_HIDE:
731 	    s = spltty();
732 	    if (scp->sc->flags & SC_MOUSE_ENABLED) {
733 		scp->sc->flags &= ~SC_MOUSE_ENABLED;
734 		sc_remove_all_mouse(scp->sc);
735 	    }
736 	    splx(s);
737 	    return 0;
738 	    /* NOTREACHED */
739 
740 	case MOUSE_MOVEABS:
741 	    s = spltty();
742 	    scp->mouse_xpos = mouse->u.data.x;
743 	    scp->mouse_ypos = mouse->u.data.y;
744 	    set_mouse_pos(scp);
745 	    splx(s);
746 	    break;
747 
748 	case MOUSE_MOVEREL:
749 	    s = spltty();
750 	    scp->mouse_xpos += mouse->u.data.x;
751 	    scp->mouse_ypos += mouse->u.data.y;
752 	    set_mouse_pos(scp);
753 	    splx(s);
754 	    break;
755 
756 	case MOUSE_GETINFO:
757 	    mouse->u.data.x = scp->mouse_xpos;
758 	    mouse->u.data.y = scp->mouse_ypos;
759 	    mouse->u.data.z = 0;
760 	    mouse->u.data.buttons = scp->mouse_buttons;
761 	    return 0;
762 
763 	case MOUSE_ACTION:
764 	case MOUSE_MOTION_EVENT:
765 	    /* send out mouse event on /dev/sysmouse */
766 #if 0
767 	    /* this should maybe only be settable from /dev/consolectl SOS */
768 	    if (SC_VTY(tp->t_dev) != SC_CONSOLECTL)
769 		return ENOTTY;
770 #endif
771 	    s = spltty();
772 	    if (mouse->u.data.x != 0 || mouse->u.data.y != 0) {
773 		cur_scp->mouse_xpos += mouse->u.data.x;
774 		cur_scp->mouse_ypos += mouse->u.data.y;
775 		set_mouse_pos(cur_scp);
776 	    }
777 	    f = 0;
778 	    if (mouse->operation == MOUSE_ACTION) {
779 		f = cur_scp->mouse_buttons ^ mouse->u.data.buttons;
780 		cur_scp->mouse_buttons = mouse->u.data.buttons;
781 	    }
782 	    splx(s);
783 
784 	    if (sysmouse_event(mouse) == 0)
785 		return 0;
786 
787 	    /*
788 	     * If any buttons are down or the mouse has moved a lot,
789 	     * stop the screen saver.
790 	     */
791 	    if (((mouse->operation == MOUSE_ACTION) && mouse->u.data.buttons)
792 		|| (mouse->u.data.x*mouse->u.data.x
793 			+ mouse->u.data.y*mouse->u.data.y
794 			>= SC_WAKEUP_DELTA*SC_WAKEUP_DELTA)) {
795 		sc_touch_scrn_saver();
796 	    }
797 
798 	    cur_scp->status &= ~MOUSE_HIDDEN;
799 
800 	    if (cur_scp->mouse_level > 0) {
801 	    	sc_mouse_input(scp, mouse);
802 		break;
803 	    }
804 
805 	    if (cur_scp->mouse_signal && cur_scp->mouse_proc) {
806     		/* has controlling process died? */
807 		if (cur_scp->mouse_proc != (p1 = pfind(cur_scp->mouse_pid))) {
808 		    	cur_scp->mouse_signal = 0;
809 			cur_scp->mouse_proc = NULL;
810 			cur_scp->mouse_pid = 0;
811 			if (p1)
812 			    PROC_UNLOCK(p1);
813 		} else {
814 		    psignal(cur_scp->mouse_proc, cur_scp->mouse_signal);
815 		    PROC_UNLOCK(cur_scp->mouse_proc);
816 		    break;
817 		}
818 	    }
819 
820 #ifndef SC_NO_CUTPASTE
821 	    if (ISGRAPHSC(cur_scp) || (cut_buffer == NULL))
822 		break;
823 
824 	    if ((mouse->operation == MOUSE_ACTION) && f) {
825 		/* process button presses */
826 		if (cur_scp->mouse_buttons & MOUSE_BUTTON1DOWN)
827 		    mouse_cut_start(cur_scp);
828 		else
829 		    mouse_cut_end(cur_scp);
830 		if (cur_scp->mouse_buttons & MOUSE_BUTTON2DOWN ||
831 		    cur_scp->mouse_buttons & MOUSE_BUTTON3DOWN)
832 		    sc_mouse_paste(cur_scp);
833 	    }
834 #endif /* SC_NO_CUTPASTE */
835 	    break;
836 
837 	case MOUSE_BUTTON_EVENT:
838 	    if ((mouse->u.event.id & MOUSE_BUTTONS) == 0)
839 		return EINVAL;
840 	    if (mouse->u.event.value < 0)
841 		return EINVAL;
842 #if 0
843 	    /* this should maybe only be settable from /dev/consolectl SOS */
844 	    if (SC_VTY(tp->t_dev) != SC_CONSOLECTL)
845 		return ENOTTY;
846 #endif
847 	    if (mouse->u.event.value > 0)
848 		cur_scp->mouse_buttons |= mouse->u.event.id;
849 	    else
850 		cur_scp->mouse_buttons &= ~mouse->u.event.id;
851 
852 	    if (sysmouse_event(mouse) == 0)
853 		return 0;
854 
855 	    /* if a button is held down, stop the screen saver */
856 	    if (mouse->u.event.value > 0)
857 		sc_touch_scrn_saver();
858 
859 	    cur_scp->status &= ~MOUSE_HIDDEN;
860 
861 	    if (cur_scp->mouse_level > 0) {
862 	    	sc_mouse_input(scp, mouse);
863 		break;
864 	    }
865 
866 	    if (cur_scp->mouse_signal && cur_scp->mouse_proc) {
867 		if (cur_scp->mouse_proc != (p1 = pfind(cur_scp->mouse_pid))){
868 		    	cur_scp->mouse_signal = 0;
869 			cur_scp->mouse_proc = NULL;
870 			cur_scp->mouse_pid = 0;
871 			if (p1)
872 			    PROC_UNLOCK(p1);
873 		} else {
874 		    psignal(cur_scp->mouse_proc, cur_scp->mouse_signal);
875 		    PROC_UNLOCK(cur_scp->mouse_proc);
876 		    break;
877 		}
878 	    }
879 
880 #ifndef SC_NO_CUTPASTE
881 	    if (ISGRAPHSC(cur_scp) || (cut_buffer == NULL))
882 		break;
883 
884 	    switch (mouse->u.event.id) {
885 	    case MOUSE_BUTTON1DOWN:
886 	        switch (mouse->u.event.value % 4) {
887 		case 0:	/* up */
888 		    mouse_cut_end(cur_scp);
889 		    break;
890 		case 1: /* single click: start cut operation */
891 		    mouse_cut_start(cur_scp);
892 		    break;
893 		case 2:	/* double click: cut a word */
894 		    mouse_cut_word(cur_scp);
895 		    mouse_cut_end(cur_scp);
896 		    break;
897 		case 3:	/* triple click: cut a line */
898 		    mouse_cut_line(cur_scp);
899 		    mouse_cut_end(cur_scp);
900 		    break;
901 		}
902 		break;
903 	    case SC_MOUSE_PASTEBUTTON:
904 	        switch (mouse->u.event.value) {
905 		case 0:	/* up */
906 		    break;
907 		default:
908 		    sc_mouse_paste(cur_scp);
909 		    break;
910 		}
911 		break;
912 	    case SC_MOUSE_EXTENDBUTTON:
913 	        switch (mouse->u.event.value) {
914 		case 0:	/* up */
915 		    if (!(cur_scp->mouse_buttons & MOUSE_BUTTON1DOWN))
916 		        mouse_cut_end(cur_scp);
917 		    break;
918 		default:
919 		    mouse_cut_extend(cur_scp);
920 		    break;
921 		}
922 		break;
923 	    }
924 #endif /* SC_NO_CUTPASTE */
925 	    break;
926 
927 	case MOUSE_MOUSECHAR:
928 	    if (mouse->u.mouse_char < 0) {
929 		mouse->u.mouse_char = scp->sc->mouse_char;
930 	    } else {
931 		if (mouse->u.mouse_char > UCHAR_MAX - 3)
932 		    return EINVAL;
933 		s = spltty();
934 		sc_remove_all_mouse(scp->sc);
935 #ifndef SC_NO_FONT_LOADING
936 		if (ISTEXTSC(cur_scp) && (cur_scp->font != NULL))
937 		    sc_load_font(cur_scp, 0, cur_scp->font_size,
938 				 cur_scp->font_width,
939 				 cur_scp->font + cur_scp->font_size
940 				 * cur_scp->sc->mouse_char,
941 				 cur_scp->sc->mouse_char, 4);
942 #endif
943 		scp->sc->mouse_char = mouse->u.mouse_char;
944 		splx(s);
945 	    }
946 	    break;
947 
948 	default:
949 	    return EINVAL;
950 	}
951 
952 	return 0;
953     }
954 
955     return ENOIOCTL;
956 }
957 
958 #endif /* SC_NO_SYSMOUSE */
959