1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer as
12 *    the first lines of this file unmodified.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#include <sys/cdefs.h>
30__FBSDID("$FreeBSD$");
31
32#include "opt_syscons.h"
33
34#include <sys/param.h>
35#include <sys/systm.h>
36#include <sys/conf.h>
37#include <sys/consio.h>
38#include <sys/fbio.h>
39#include <sys/limits.h>
40#include <sys/lock.h>
41#include <sys/malloc.h>
42#include <sys/mouse.h>
43#include <sys/mutex.h>
44#include <sys/proc.h>
45#include <sys/random.h>
46#include <sys/signalvar.h>
47#include <sys/tty.h>
48
49#include <dev/syscons/syscons.h>
50
51#ifdef SC_TWOBUTTON_MOUSE
52#define SC_MOUSE_PASTEBUTTON	MOUSE_BUTTON3DOWN	/* right button */
53#define SC_MOUSE_EXTENDBUTTON	MOUSE_BUTTON2DOWN	/* not really used */
54#else
55#define SC_MOUSE_PASTEBUTTON	MOUSE_BUTTON2DOWN	/* middle button */
56#define SC_MOUSE_EXTENDBUTTON	MOUSE_BUTTON3DOWN	/* right button */
57#endif /* SC_TWOBUTTON_MOUSE */
58
59#define SC_WAKEUP_DELTA		20
60
61/* for backward compatibility */
62#define OLD_CONS_MOUSECTL	_IOWR('c', 10, old_mouse_info_t)
63
64typedef struct old_mouse_data {
65    int x;
66    int y;
67    int buttons;
68} old_mouse_data_t;
69
70typedef struct old_mouse_info {
71    int operation;
72    union {
73	struct old_mouse_data data;
74	struct mouse_mode mode;
75    } u;
76} old_mouse_info_t;
77
78#ifndef SC_NO_SYSMOUSE
79
80/* local variables */
81#ifndef SC_NO_CUTPASTE
82static int		cut_buffer_size;
83static u_char		*cut_buffer;
84#endif
85
86/* local functions */
87static void set_mouse_pos(scr_stat *scp);
88#ifndef SC_NO_CUTPASTE
89static int skip_spc_right(scr_stat *scp, int p);
90static int skip_spc_left(scr_stat *scp, int p);
91static void mouse_cut(scr_stat *scp);
92static void mouse_cut_start(scr_stat *scp);
93static void mouse_cut_end(scr_stat *scp);
94static void mouse_cut_word(scr_stat *scp);
95static void mouse_cut_line(scr_stat *scp);
96static void mouse_cut_extend(scr_stat *scp);
97#endif /* SC_NO_CUTPASTE */
98
99#ifndef SC_NO_CUTPASTE
100/* allocate a cut buffer */
101void
102sc_alloc_cut_buffer(scr_stat *scp, int wait)
103{
104    u_char *p;
105
106    if ((cut_buffer == NULL)
107	|| (cut_buffer_size < scp->xsize * scp->ysize + 1)) {
108	p = cut_buffer;
109	cut_buffer = NULL;
110	if (p != NULL)
111	    free(p, M_DEVBUF);
112	cut_buffer_size = scp->xsize * scp->ysize + 1;
113	p = (u_char *)malloc(cut_buffer_size,
114			     M_DEVBUF, (wait) ? M_WAITOK : M_NOWAIT);
115	if (p != NULL)
116	    p[0] = '\0';
117	cut_buffer = p;
118    }
119}
120#endif /* SC_NO_CUTPASTE */
121
122static void
123sc_mouse_input_button(scr_stat *scp, int button)
124{
125	char mouseb[6] = "\x1B[M";
126
127	mouseb[3] = ' ' + button;
128	mouseb[4] = '!' + scp->mouse_pos % scp->xsize;
129	mouseb[5] = '!' + scp->mouse_pos / scp->xsize;
130	sc_respond(scp, mouseb, sizeof mouseb, 1);
131}
132
133static void
134sc_mouse_input(scr_stat *scp, mouse_info_t *mouse)
135{
136
137	switch (mouse->operation) {
138	case MOUSE_BUTTON_EVENT:
139		if (mouse->u.event.value > 0) {
140			/* Mouse button pressed. */
141			if (mouse->u.event.id & MOUSE_BUTTON1DOWN)
142				sc_mouse_input_button(scp, 0);
143			if (mouse->u.event.id & MOUSE_BUTTON2DOWN)
144				sc_mouse_input_button(scp, 1);
145			if (mouse->u.event.id & MOUSE_BUTTON3DOWN)
146				sc_mouse_input_button(scp, 2);
147		} else {
148			/* Mouse button released. */
149			sc_mouse_input_button(scp, 3);
150		}
151		break;
152	case MOUSE_MOTION_EVENT:
153		if (mouse->u.data.z < 0) {
154			/* Scroll up. */
155			sc_mouse_input_button(scp, 64);
156		} else if (mouse->u.data.z > 0) {
157			/* Scroll down. */
158			sc_mouse_input_button(scp, 65);
159		}
160		break;
161	}
162}
163
164/* move mouse */
165void
166sc_mouse_move(scr_stat *scp, int x, int y)
167{
168    int s;
169
170    s = spltty();
171    scp->mouse_xpos = scp->mouse_oldxpos = x;
172    scp->mouse_ypos = scp->mouse_oldypos = y;
173    if (scp->font_size <= 0 || scp->font_width <= 0)
174	scp->mouse_pos = scp->mouse_oldpos = 0;
175    else
176	scp->mouse_pos = scp->mouse_oldpos =
177	    (y/scp->font_size - scp->yoff)*scp->xsize + x/scp->font_width -
178	    scp->xoff;
179    scp->status |= MOUSE_MOVED;
180    splx(s);
181}
182
183/* adjust mouse position */
184static void
185set_mouse_pos(scr_stat *scp)
186{
187    if (scp->mouse_xpos < scp->xoff*scp->font_width)
188	scp->mouse_xpos = scp->xoff*scp->font_width;
189    if (scp->mouse_ypos < scp->yoff*scp->font_size)
190	scp->mouse_ypos = scp->yoff*scp->font_size;
191    if (ISGRAPHSC(scp)) {
192        if (scp->mouse_xpos > scp->xpixel-1)
193	    scp->mouse_xpos = scp->xpixel-1;
194        if (scp->mouse_ypos > scp->ypixel-1)
195	    scp->mouse_ypos = scp->ypixel-1;
196	return;
197    } else {
198	if (scp->mouse_xpos > (scp->xsize + scp->xoff)*scp->font_width - 1)
199	    scp->mouse_xpos = (scp->xsize + scp->xoff)*scp->font_width - 1;
200	if (scp->mouse_ypos > (scp->ysize + scp->yoff)*scp->font_size - 1)
201	    scp->mouse_ypos = (scp->ysize + scp->yoff)*scp->font_size - 1;
202    }
203
204    if ((scp->mouse_xpos != scp->mouse_oldxpos || scp->mouse_ypos != scp->mouse_oldypos)
205	&& (scp->font_size != 0 && scp->font_width != 0)) {
206	scp->status |= MOUSE_MOVED;
207    	scp->mouse_pos =
208	    (scp->mouse_ypos/scp->font_size - scp->yoff)*scp->xsize
209		+ scp->mouse_xpos/scp->font_width - scp->xoff;
210#ifndef SC_NO_CUTPASTE
211	if ((scp->status & MOUSE_VISIBLE) && (scp->status & MOUSE_CUTTING))
212	    mouse_cut(scp);
213#endif
214    }
215}
216
217#ifndef SC_NO_CUTPASTE
218
219void
220sc_draw_mouse_image(scr_stat *scp)
221{
222    if (ISGRAPHSC(scp))
223	return;
224
225    SC_VIDEO_LOCK(scp->sc);
226    (*scp->rndr->draw_mouse)(scp, scp->mouse_xpos, scp->mouse_ypos, TRUE);
227    scp->mouse_oldpos = scp->mouse_pos;
228    scp->mouse_oldxpos = scp->mouse_xpos;
229    scp->mouse_oldypos = scp->mouse_ypos;
230    scp->status |= MOUSE_VISIBLE;
231    SC_VIDEO_UNLOCK(scp->sc);
232}
233
234void
235sc_remove_mouse_image(scr_stat *scp)
236{
237    int cols, i, rows;
238
239    if (ISGRAPHSC(scp))
240	return;
241
242    SC_VIDEO_LOCK(scp->sc);
243    (*scp->rndr->draw_mouse)(scp, scp->mouse_oldxpos, scp->mouse_oldypos,
244			     FALSE);
245    /*
246     * To simplify the renderer and ensure undrawing with correct
247     * attributes, mark for update a region containing the cursor
248     * (usually 2x2 character cells joined by almost a full line o
249     * character cells).
250     *
251     * The renderer should only undraw any pixels outside of the text
252     * window (e.g., ones in borders and hardware cursors).
253     */
254    i = scp->mouse_oldpos;
255    mark_for_update(scp, i);
256    mark_for_update(scp, i);
257    cols = 1 + howmany(10 - 1, scp->font_width); /* up to VGA cursor width 9 */
258    cols = imax(cols, 2);	/* in case it is text mode 2x2 char cells */
259    cols = imin(cols, scp->xsize - i % scp->xsize);
260    rows = 1 + howmany(16 - 1, scp->font_size);	/* up to VGA cursor height 16 */
261    rows = imax(rows, 2);	/* don't bother reducing 3 to 2 if text */
262    rows = imin(rows, scp->ysize - i / scp->xsize);
263    mark_for_update(scp, i + (rows - 1) * scp->xsize + cols - 1);
264    scp->status &= ~MOUSE_VISIBLE;
265    SC_VIDEO_UNLOCK(scp->sc);
266}
267
268int
269sc_inside_cutmark(scr_stat *scp, int pos)
270{
271    int start;
272    int end;
273
274    if (scp->mouse_cut_end < 0)
275	return FALSE;
276    if (scp->mouse_cut_start <= scp->mouse_cut_end) {
277	start = scp->mouse_cut_start;
278	end = scp->mouse_cut_end;
279    } else {
280	start = scp->mouse_cut_end;
281	end = scp->mouse_cut_start - 1;
282    }
283    return ((start <= pos) && (pos <= end));
284}
285
286void
287sc_remove_cutmarking(scr_stat *scp)
288{
289    int s;
290
291    s = spltty();
292    if (scp->mouse_cut_end >= 0) {
293	mark_for_update(scp, scp->mouse_cut_start);
294	mark_for_update(scp, scp->mouse_cut_end);
295    }
296    scp->mouse_cut_start = scp->xsize*scp->ysize;
297    scp->mouse_cut_end = -1;
298    splx(s);
299    scp->status &= ~MOUSE_CUTTING;
300}
301
302void
303sc_remove_all_cutmarkings(sc_softc_t *sc)
304{
305    scr_stat *scp;
306    int i;
307
308    /* delete cut markings in all vtys */
309    for (i = 0; i < sc->vtys; ++i) {
310	scp = SC_STAT(sc->dev[i]);
311	if (scp == NULL)
312	    continue;
313	sc_remove_cutmarking(scp);
314    }
315}
316
317void
318sc_remove_all_mouse(sc_softc_t *sc)
319{
320    scr_stat *scp;
321    int i;
322
323    for (i = 0; i < sc->vtys; ++i) {
324	scp = SC_STAT(sc->dev[i]);
325	if (scp == NULL)
326	    continue;
327	if (scp->status & MOUSE_VISIBLE) {
328	    scp->status &= ~MOUSE_VISIBLE;
329	    mark_all(scp);
330	}
331    }
332}
333
334#define IS_SPACE_CHAR(c)	(((c) & 0xff) == ' ')
335
336#ifdef SC_CUT_SPACES2TABS
337#define IS_BLANK_CHAR(c)	(((c) & 0xff) == ' ' || ((c) & 0xff) == '\t')
338#else
339#define IS_BLANK_CHAR(c)	IS_SPACE_CHAR(c)
340#endif /* SC_CUT_SPACES2TABS */
341
342#ifdef SC_CUT_SEPCHARS
343#define IS_SEP_CHAR(c)		(index(SC_CUT_SEPCHARS, (c) & 0xff) != NULL)
344#else
345#define IS_SEP_CHAR(c)		IS_SPACE_CHAR(c)
346#endif /* SC_CUT_SEPCHARS */
347
348/* skip spaces to right */
349static int
350skip_spc_right(scr_stat *scp, int p)
351{
352    int c;
353    int i;
354
355    for (i = p % scp->xsize; i < scp->xsize; ++i) {
356	c = sc_vtb_getc(&scp->vtb, p);
357	if (!IS_SPACE_CHAR(c))
358	    break;
359	++p;
360    }
361    return i;
362}
363
364/* skip spaces to left */
365static int
366skip_spc_left(scr_stat *scp, int p)
367{
368    int c;
369    int i;
370
371    for (i = p-- % scp->xsize - 1; i >= 0; --i) {
372	c = sc_vtb_getc(&scp->vtb, p);
373	if (!IS_SPACE_CHAR(c))
374	    break;
375	--p;
376    }
377    return i;
378}
379
380static void
381mouse_do_cut(scr_stat *scp, int from, int to)
382{
383    int blank;
384    int i;
385    int leadspaces;
386    int p;
387    int s;
388
389    for (p = from, i = blank = leadspaces = 0; p <= to; ++p) {
390	cut_buffer[i] = sc_vtb_getc(&scp->vtb, p);
391	/* Be prepared that sc_vtb_getc() can return '\0' */
392	if (cut_buffer[i] == '\0')
393	    cut_buffer[i] = ' ';
394#ifdef SC_CUT_SPACES2TABS
395	if (leadspaces != -1) {
396	    if (IS_SPACE_CHAR(cut_buffer[i])) {
397		leadspaces++;
398		/* Check that we are at tabstop position */
399		if ((p % scp->xsize) % 8 == 7) {
400		    i -= leadspaces - 1;
401		    cut_buffer[i] = '\t';
402		    leadspaces = 0;
403		}
404	    } else {
405		leadspaces = -1;
406	    }
407	}
408#endif /* SC_CUT_SPACES2TABS */
409	/* remember the position of the last non-space char */
410	if (!IS_BLANK_CHAR(cut_buffer[i]))
411	    blank = i + 1;	/* the first space after the last non-space */
412	++i;
413	/* trim trailing blank when crossing lines */
414	if ((p % scp->xsize) == (scp->xsize - 1)) {
415	    cut_buffer[blank++] = '\r';
416	    i = blank;
417	    leadspaces = 0;
418	}
419    }
420    cut_buffer[i] = '\0';
421
422    /* remove the current marking */
423    s = spltty();
424    if (scp->mouse_cut_start <= scp->mouse_cut_end) {
425	mark_for_update(scp, scp->mouse_cut_start);
426	mark_for_update(scp, scp->mouse_cut_end);
427    } else if (scp->mouse_cut_end >= 0) {
428	mark_for_update(scp, scp->mouse_cut_end);
429	mark_for_update(scp, scp->mouse_cut_start);
430    }
431
432    /* mark the new region */
433    scp->mouse_cut_start = from;
434    scp->mouse_cut_end = to;
435    mark_for_update(scp, from);
436    mark_for_update(scp, to);
437    splx(s);
438}
439
440/* copy marked region to the cut buffer */
441static void
442mouse_cut(scr_stat *scp)
443{
444    int start;
445    int end;
446    int from;
447    int to;
448    int c;
449    int p;
450    int s;
451    int i;
452
453    start = scp->mouse_cut_start;
454    end = scp->mouse_cut_end;
455    if (scp->mouse_pos >= start) {
456	from = start;
457	to = end = scp->mouse_pos;
458    } else {
459	from = end = scp->mouse_pos;
460	to = start - 1;
461    }
462    p = to;
463    for (i = p % scp->xsize; i < scp->xsize; ++i) {
464	c = sc_vtb_getc(&scp->vtb, p);
465	if (!IS_SPACE_CHAR(c))
466	    break;
467	++p;
468    }
469    /* if there is nothing but blank chars, trim them, but mark towards eol */
470    if (i == scp->xsize) {
471	if (end >= start)
472	    to = end = p - 1;
473	else
474	    to = start = p;
475    }
476    mouse_do_cut(scp, from, to);
477    s = spltty();
478    scp->mouse_cut_start = start;
479    scp->mouse_cut_end = end;
480    splx(s);
481}
482
483/* a mouse button is pressed, start cut operation */
484static void
485mouse_cut_start(scr_stat *scp)
486{
487    int i;
488    int s;
489
490    if (scp->status & MOUSE_VISIBLE) {
491	sc_remove_all_cutmarkings(scp->sc);
492	if ((scp->mouse_pos == scp->mouse_cut_start) &&
493	    (scp->mouse_pos == scp->mouse_cut_end)) {
494	    cut_buffer[0] = '\0';
495	    return;
496	} else if (skip_spc_right(scp, scp->mouse_pos) >= scp->xsize) {
497	    /* if the pointer is on trailing blank chars, mark towards eol */
498	    i = skip_spc_left(scp, scp->mouse_pos) + 1;
499	    s = spltty();
500	    scp->mouse_cut_start =
501	        rounddown(scp->mouse_pos, scp->xsize) + i;
502	    scp->mouse_cut_end =
503	        (scp->mouse_pos / scp->xsize + 1) * scp->xsize - 1;
504	    splx(s);
505	    cut_buffer[0] = '\r';
506	} else {
507	    s = spltty();
508	    scp->mouse_cut_start = scp->mouse_pos;
509	    scp->mouse_cut_end = scp->mouse_cut_start;
510	    splx(s);
511	    cut_buffer[0] = sc_vtb_getc(&scp->vtb, scp->mouse_cut_start);
512	}
513	cut_buffer[1] = '\0';
514	scp->status |= MOUSE_CUTTING;
515    	mark_all(scp);	/* this is probably overkill XXX */
516    }
517}
518
519/* end of cut operation */
520static void
521mouse_cut_end(scr_stat *scp)
522{
523    if (scp->status & MOUSE_VISIBLE)
524	scp->status &= ~MOUSE_CUTTING;
525}
526
527/* copy a word under the mouse pointer */
528static void
529mouse_cut_word(scr_stat *scp)
530{
531    int start;
532    int end;
533    int sol;
534    int eol;
535    int c;
536    int j;
537    int len;
538
539    /*
540     * Because we don't have locale information in the kernel,
541     * we only distinguish space char and non-space chars.  Punctuation
542     * chars, symbols and other regular chars are all treated alike
543     * unless user specified SC_CUT_SEPCHARS in his kernel config file.
544     */
545    if (scp->status & MOUSE_VISIBLE) {
546	sol = rounddown(scp->mouse_pos, scp->xsize);
547	eol = sol + scp->xsize;
548	c = sc_vtb_getc(&scp->vtb, scp->mouse_pos);
549	if (IS_SEP_CHAR(c)) {
550	    /* blank space */
551	    for (j = scp->mouse_pos; j >= sol; --j) {
552		c = sc_vtb_getc(&scp->vtb, j);
553	        if (!IS_SEP_CHAR(c))
554		    break;
555	    }
556	    start = ++j;
557	    for (j = scp->mouse_pos; j < eol; ++j) {
558		c = sc_vtb_getc(&scp->vtb, j);
559	        if (!IS_SEP_CHAR(c))
560		    break;
561	    }
562	    end = j - 1;
563	} else {
564	    /* non-space word */
565	    for (j = scp->mouse_pos; j >= sol; --j) {
566		c = sc_vtb_getc(&scp->vtb, j);
567	        if (IS_SEP_CHAR(c))
568		    break;
569	    }
570	    start = ++j;
571	    for (j = scp->mouse_pos; j < eol; ++j) {
572		c = sc_vtb_getc(&scp->vtb, j);
573	        if (IS_SEP_CHAR(c))
574		    break;
575	    }
576	    end = j - 1;
577	}
578
579	/* copy the found word */
580	mouse_do_cut(scp, start, end);
581	len = strlen(cut_buffer);
582	if (cut_buffer[len - 1] == '\r')
583	    cut_buffer[len - 1] = '\0';
584    }
585}
586
587/* copy a line under the mouse pointer */
588static void
589mouse_cut_line(scr_stat *scp)
590{
591    int len;
592    int from;
593
594    if (scp->status & MOUSE_VISIBLE) {
595	from = rounddown(scp->mouse_pos, scp->xsize);
596	mouse_do_cut(scp, from, from + scp->xsize - 1);
597	len = strlen(cut_buffer);
598	if (cut_buffer[len - 1] == '\r')
599	    cut_buffer[len - 1] = '\0';
600	scp->status |= MOUSE_CUTTING;
601    }
602}
603
604/* extend the marked region to the mouse pointer position */
605static void
606mouse_cut_extend(scr_stat *scp)
607{
608    int start;
609    int end;
610    int s;
611
612    if ((scp->status & MOUSE_VISIBLE) && !(scp->status & MOUSE_CUTTING)
613	&& (scp->mouse_cut_end >= 0)) {
614	if (scp->mouse_cut_start <= scp->mouse_cut_end) {
615	    start = scp->mouse_cut_start;
616	    end = scp->mouse_cut_end;
617	} else {
618	    start = scp->mouse_cut_end;
619	    end = scp->mouse_cut_start - 1;
620	}
621	s = spltty();
622	if (scp->mouse_pos > end) {
623	    scp->mouse_cut_start = start;
624	    scp->mouse_cut_end = end;
625	} else if (scp->mouse_pos < start) {
626	    scp->mouse_cut_start = end + 1;
627	    scp->mouse_cut_end = start;
628	} else {
629	    if (scp->mouse_pos - start > end + 1 - scp->mouse_pos) {
630		scp->mouse_cut_start = start;
631		scp->mouse_cut_end = end;
632	    } else {
633		scp->mouse_cut_start = end + 1;
634		scp->mouse_cut_end = start;
635	    }
636	}
637	splx(s);
638	mouse_cut(scp);
639	scp->status |= MOUSE_CUTTING;
640    }
641}
642
643/* paste cut buffer contents into the current vty */
644void
645sc_mouse_paste(scr_stat *scp)
646{
647    sc_paste(scp, cut_buffer, strlen(cut_buffer));
648}
649
650#endif /* SC_NO_CUTPASTE */
651
652int
653sc_mouse_ioctl(struct tty *tp, u_long cmd, caddr_t data, struct thread *td)
654{
655    mouse_info_t *mouse;
656    mouse_info_t buf;
657    scr_stat *cur_scp;
658    scr_stat *scp;
659    struct proc *p1;
660    int s;
661    int f;
662
663    scp = SC_STAT(tp);
664
665    switch (cmd) {
666    case CONS_MOUSECTL:		/* control mouse arrow */
667    case OLD_CONS_MOUSECTL:
668
669	mouse = (mouse_info_t*)data;
670
671	random_harvest_queue(mouse, sizeof(mouse_info_t), RANDOM_MOUSE);
672
673	if (cmd == OLD_CONS_MOUSECTL) {
674	    static u_char swapb[] = { 0, 4, 2, 6, 1, 5, 3, 7 };
675	    old_mouse_info_t *old_mouse = (old_mouse_info_t *)data;
676
677	    mouse = &buf;
678	    mouse->operation = old_mouse->operation;
679	    switch (mouse->operation) {
680	    case MOUSE_MODE:
681		mouse->u.mode = old_mouse->u.mode;
682		break;
683	    case MOUSE_SHOW:
684	    case MOUSE_HIDE:
685		break;
686	    case MOUSE_MOVEABS:
687	    case MOUSE_MOVEREL:
688	    case MOUSE_ACTION:
689		mouse->u.data.x = old_mouse->u.data.x;
690		mouse->u.data.y = old_mouse->u.data.y;
691		mouse->u.data.z = 0;
692		mouse->u.data.buttons = swapb[old_mouse->u.data.buttons & 0x7];
693		break;
694	    case MOUSE_GETINFO:
695		old_mouse->u.data.x = scp->mouse_xpos;
696		old_mouse->u.data.y = scp->mouse_ypos;
697		old_mouse->u.data.buttons = swapb[scp->mouse_buttons & 0x7];
698		return 0;
699	    default:
700		return EINVAL;
701	    }
702	}
703
704	cur_scp = scp->sc->cur_scp;
705
706	switch (mouse->operation) {
707	case MOUSE_MODE:
708	    if (ISSIGVALID(mouse->u.mode.signal)) {
709		scp->mouse_signal = mouse->u.mode.signal;
710		scp->mouse_proc = td->td_proc;
711		scp->mouse_pid = td->td_proc->p_pid;
712	    }
713	    else {
714		scp->mouse_signal = 0;
715		scp->mouse_proc = NULL;
716		scp->mouse_pid = 0;
717	    }
718	    return 0;
719
720	case MOUSE_SHOW:
721	    s = spltty();
722	    if (!(scp->sc->flags & SC_MOUSE_ENABLED)) {
723		scp->sc->flags |= SC_MOUSE_ENABLED;
724		cur_scp->status &= ~MOUSE_HIDDEN;
725		if (!ISGRAPHSC(cur_scp))
726		    mark_all(cur_scp);
727	    }
728	    splx(s);
729	    return 0;
730	    /* NOTREACHED */
731
732	case MOUSE_HIDE:
733	    s = spltty();
734	    if (scp->sc->flags & SC_MOUSE_ENABLED) {
735		scp->sc->flags &= ~SC_MOUSE_ENABLED;
736		sc_remove_all_mouse(scp->sc);
737	    }
738	    splx(s);
739	    return 0;
740	    /* NOTREACHED */
741
742	case MOUSE_MOVEABS:
743	    s = spltty();
744	    scp->mouse_xpos = mouse->u.data.x;
745	    scp->mouse_ypos = mouse->u.data.y;
746	    set_mouse_pos(scp);
747	    splx(s);
748	    break;
749
750	case MOUSE_MOVEREL:
751	    s = spltty();
752	    scp->mouse_xpos += mouse->u.data.x;
753	    scp->mouse_ypos += mouse->u.data.y;
754	    set_mouse_pos(scp);
755	    splx(s);
756	    break;
757
758	case MOUSE_GETINFO:
759	    mouse->u.data.x = scp->mouse_xpos;
760	    mouse->u.data.y = scp->mouse_ypos;
761	    mouse->u.data.z = 0;
762	    mouse->u.data.buttons = scp->mouse_buttons;
763	    return 0;
764
765	case MOUSE_ACTION:
766	case MOUSE_MOTION_EVENT:
767	    /* send out mouse event on /dev/sysmouse */
768#if 0
769	    /* this should maybe only be settable from /dev/consolectl SOS */
770	    if (SC_VTY(tp->t_dev) != SC_CONSOLECTL)
771		return ENOTTY;
772#endif
773	    s = spltty();
774	    if (mouse->u.data.x != 0 || mouse->u.data.y != 0) {
775		cur_scp->mouse_xpos += mouse->u.data.x;
776		cur_scp->mouse_ypos += mouse->u.data.y;
777		set_mouse_pos(cur_scp);
778	    }
779	    f = 0;
780	    if (mouse->operation == MOUSE_ACTION) {
781		f = cur_scp->mouse_buttons ^ mouse->u.data.buttons;
782		cur_scp->mouse_buttons = mouse->u.data.buttons;
783	    }
784	    splx(s);
785
786	    if (sysmouse_event(mouse) == 0)
787		return 0;
788
789	    /*
790	     * If any buttons are down or the mouse has moved a lot,
791	     * stop the screen saver.
792	     */
793	    if (((mouse->operation == MOUSE_ACTION) && mouse->u.data.buttons)
794		|| (mouse->u.data.x*mouse->u.data.x
795			+ mouse->u.data.y*mouse->u.data.y
796			>= SC_WAKEUP_DELTA*SC_WAKEUP_DELTA)) {
797		sc_touch_scrn_saver();
798	    }
799
800	    cur_scp->status &= ~MOUSE_HIDDEN;
801
802	    if (cur_scp->mouse_level > 0) {
803	    	sc_mouse_input(scp, mouse);
804		break;
805	    }
806
807	    if (cur_scp->mouse_signal && cur_scp->mouse_proc) {
808    		/* has controlling process died? */
809		if (cur_scp->mouse_proc != (p1 = pfind(cur_scp->mouse_pid))) {
810		    	cur_scp->mouse_signal = 0;
811			cur_scp->mouse_proc = NULL;
812			cur_scp->mouse_pid = 0;
813			if (p1)
814			    PROC_UNLOCK(p1);
815		} else {
816		    kern_psignal(cur_scp->mouse_proc, cur_scp->mouse_signal);
817		    PROC_UNLOCK(cur_scp->mouse_proc);
818		    break;
819		}
820	    }
821
822#ifndef SC_NO_CUTPASTE
823	    if (ISGRAPHSC(cur_scp) || (cut_buffer == NULL))
824		break;
825
826	    if ((mouse->operation == MOUSE_ACTION) && f) {
827		/* process button presses */
828		if (cur_scp->mouse_buttons & MOUSE_BUTTON1DOWN)
829		    mouse_cut_start(cur_scp);
830		else
831		    mouse_cut_end(cur_scp);
832		if (cur_scp->mouse_buttons & MOUSE_BUTTON2DOWN ||
833		    cur_scp->mouse_buttons & MOUSE_BUTTON3DOWN)
834		    sc_mouse_paste(cur_scp);
835	    }
836#endif /* SC_NO_CUTPASTE */
837	    break;
838
839	case MOUSE_BUTTON_EVENT:
840	    if ((mouse->u.event.id & MOUSE_BUTTONS) == 0)
841		return EINVAL;
842	    if (mouse->u.event.value < 0)
843		return EINVAL;
844#if 0
845	    /* this should maybe only be settable from /dev/consolectl SOS */
846	    if (SC_VTY(tp->t_dev) != SC_CONSOLECTL)
847		return ENOTTY;
848#endif
849	    if (mouse->u.event.value > 0)
850		cur_scp->mouse_buttons |= mouse->u.event.id;
851	    else
852		cur_scp->mouse_buttons &= ~mouse->u.event.id;
853
854	    if (sysmouse_event(mouse) == 0)
855		return 0;
856
857	    /* if a button is held down, stop the screen saver */
858	    if (mouse->u.event.value > 0)
859		sc_touch_scrn_saver();
860
861	    cur_scp->status &= ~MOUSE_HIDDEN;
862
863	    if (cur_scp->mouse_level > 0) {
864	    	sc_mouse_input(scp, mouse);
865		break;
866	    }
867
868	    if (cur_scp->mouse_signal && cur_scp->mouse_proc) {
869		if (cur_scp->mouse_proc != (p1 = pfind(cur_scp->mouse_pid))){
870		    	cur_scp->mouse_signal = 0;
871			cur_scp->mouse_proc = NULL;
872			cur_scp->mouse_pid = 0;
873			if (p1)
874			    PROC_UNLOCK(p1);
875		} else {
876		    kern_psignal(cur_scp->mouse_proc, cur_scp->mouse_signal);
877		    PROC_UNLOCK(cur_scp->mouse_proc);
878		    break;
879		}
880	    }
881
882#ifndef SC_NO_CUTPASTE
883	    if (ISGRAPHSC(cur_scp) || (cut_buffer == NULL))
884		break;
885
886	    switch (mouse->u.event.id) {
887	    case MOUSE_BUTTON1DOWN:
888	        switch (mouse->u.event.value % 4) {
889		case 0:	/* up */
890		    mouse_cut_end(cur_scp);
891		    break;
892		case 1: /* single click: start cut operation */
893		    mouse_cut_start(cur_scp);
894		    break;
895		case 2:	/* double click: cut a word */
896		    mouse_cut_word(cur_scp);
897		    mouse_cut_end(cur_scp);
898		    break;
899		case 3:	/* triple click: cut a line */
900		    mouse_cut_line(cur_scp);
901		    mouse_cut_end(cur_scp);
902		    break;
903		}
904		break;
905	    case SC_MOUSE_PASTEBUTTON:
906	        switch (mouse->u.event.value) {
907		case 0:	/* up */
908		    break;
909		default:
910		    sc_mouse_paste(cur_scp);
911		    break;
912		}
913		break;
914	    case SC_MOUSE_EXTENDBUTTON:
915	        switch (mouse->u.event.value) {
916		case 0:	/* up */
917		    if (!(cur_scp->mouse_buttons & MOUSE_BUTTON1DOWN))
918		        mouse_cut_end(cur_scp);
919		    break;
920		default:
921		    mouse_cut_extend(cur_scp);
922		    break;
923		}
924		break;
925	    }
926#endif /* SC_NO_CUTPASTE */
927	    break;
928
929	case MOUSE_MOUSECHAR:
930	    if (mouse->u.mouse_char < 0) {
931		mouse->u.mouse_char = scp->sc->mouse_char;
932	    } else {
933		if (mouse->u.mouse_char > UCHAR_MAX - 3)
934		    return EINVAL;
935		s = spltty();
936		sc_remove_all_mouse(scp->sc);
937#ifndef SC_NO_FONT_LOADING
938		if (ISTEXTSC(cur_scp) && (cur_scp->font != NULL))
939		    sc_load_font(cur_scp, 0, cur_scp->font_size,
940				 cur_scp->font_width,
941				 cur_scp->font + cur_scp->font_size
942				 * cur_scp->sc->mouse_char,
943				 cur_scp->sc->mouse_char, 4);
944#endif
945		scp->sc->mouse_char = mouse->u.mouse_char;
946		splx(s);
947	    }
948	    break;
949
950	default:
951	    return EINVAL;
952	}
953
954	return 0;
955    }
956
957    return ENOIOCTL;
958}
959
960#endif /* SC_NO_SYSMOUSE */
961