1/*-
2 * SPDX-License-Identifier: BSD-2-Clause
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#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
62typedef struct old_mouse_data {
63    int x;
64    int y;
65    int buttons;
66} old_mouse_data_t;
67
68typedef 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
80static int		cut_buffer_size;
81static u_char		*cut_buffer;
82#endif
83
84/* local functions */
85static void set_mouse_pos(scr_stat *scp);
86#ifndef SC_NO_CUTPASTE
87static int skip_spc_right(scr_stat *scp, int p);
88static int skip_spc_left(scr_stat *scp, int p);
89static void mouse_cut(scr_stat *scp);
90static void mouse_cut_start(scr_stat *scp);
91static void mouse_cut_end(scr_stat *scp);
92static void mouse_cut_word(scr_stat *scp);
93static void mouse_cut_line(scr_stat *scp);
94static void mouse_cut_extend(scr_stat *scp);
95#endif /* SC_NO_CUTPASTE */
96
97#ifndef SC_NO_CUTPASTE
98/* allocate a cut buffer */
99void
100sc_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
120static void
121sc_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
131static void
132sc_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 */
163void
164sc_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 */
182static void
183set_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
217void
218sc_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
232void
233sc_remove_mouse_image(scr_stat *scp)
234{
235    int cols, i, rows;
236
237    if (ISGRAPHSC(scp))
238	return;
239
240    SC_VIDEO_LOCK(scp->sc);
241    (*scp->rndr->draw_mouse)(scp, scp->mouse_oldxpos, scp->mouse_oldypos,
242			     FALSE);
243    /*
244     * To simplify the renderer and ensure undrawing with correct
245     * attributes, mark for update a region containing the cursor
246     * (usually 2x2 character cells joined by almost a full line o
247     * character cells).
248     *
249     * The renderer should only undraw any pixels outside of the text
250     * window (e.g., ones in borders and hardware cursors).
251     */
252    i = scp->mouse_oldpos;
253    mark_for_update(scp, i);
254    mark_for_update(scp, i);
255    cols = 1 + howmany(10 - 1, scp->font_width); /* up to VGA cursor width 9 */
256    cols = imax(cols, 2);	/* in case it is text mode 2x2 char cells */
257    cols = imin(cols, scp->xsize - i % scp->xsize);
258    rows = 1 + howmany(16 - 1, scp->font_size);	/* up to VGA cursor height 16 */
259    rows = imax(rows, 2);	/* don't bother reducing 3 to 2 if text */
260    rows = imin(rows, scp->ysize - i / scp->xsize);
261    mark_for_update(scp, i + (rows - 1) * scp->xsize + cols - 1);
262    scp->status &= ~MOUSE_VISIBLE;
263    SC_VIDEO_UNLOCK(scp->sc);
264}
265
266int
267sc_inside_cutmark(scr_stat *scp, int pos)
268{
269    int start;
270    int end;
271
272    if (scp->mouse_cut_end < 0)
273	return FALSE;
274    if (scp->mouse_cut_start <= scp->mouse_cut_end) {
275	start = scp->mouse_cut_start;
276	end = scp->mouse_cut_end;
277    } else {
278	start = scp->mouse_cut_end;
279	end = scp->mouse_cut_start - 1;
280    }
281    return ((start <= pos) && (pos <= end));
282}
283
284void
285sc_remove_cutmarking(scr_stat *scp)
286{
287    int s;
288
289    s = spltty();
290    if (scp->mouse_cut_end >= 0) {
291	mark_for_update(scp, scp->mouse_cut_start);
292	mark_for_update(scp, scp->mouse_cut_end);
293    }
294    scp->mouse_cut_start = scp->xsize*scp->ysize;
295    scp->mouse_cut_end = -1;
296    splx(s);
297    scp->status &= ~MOUSE_CUTTING;
298}
299
300void
301sc_remove_all_cutmarkings(sc_softc_t *sc)
302{
303    scr_stat *scp;
304    int i;
305
306    /* delete cut markings in all vtys */
307    for (i = 0; i < sc->vtys; ++i) {
308	scp = SC_STAT(sc->dev[i]);
309	if (scp == NULL)
310	    continue;
311	sc_remove_cutmarking(scp);
312    }
313}
314
315void
316sc_remove_all_mouse(sc_softc_t *sc)
317{
318    scr_stat *scp;
319    int i;
320
321    for (i = 0; i < sc->vtys; ++i) {
322	scp = SC_STAT(sc->dev[i]);
323	if (scp == NULL)
324	    continue;
325	if (scp->status & MOUSE_VISIBLE) {
326	    scp->status &= ~MOUSE_VISIBLE;
327	    mark_all(scp);
328	}
329    }
330}
331
332#define IS_SPACE_CHAR(c)	(((c) & 0xff) == ' ')
333
334#ifdef SC_CUT_SPACES2TABS
335#define IS_BLANK_CHAR(c)	(((c) & 0xff) == ' ' || ((c) & 0xff) == '\t')
336#else
337#define IS_BLANK_CHAR(c)	IS_SPACE_CHAR(c)
338#endif /* SC_CUT_SPACES2TABS */
339
340#ifdef SC_CUT_SEPCHARS
341#define IS_SEP_CHAR(c)		(index(SC_CUT_SEPCHARS, (c) & 0xff) != NULL)
342#else
343#define IS_SEP_CHAR(c)		IS_SPACE_CHAR(c)
344#endif /* SC_CUT_SEPCHARS */
345
346/* skip spaces to right */
347static int
348skip_spc_right(scr_stat *scp, int p)
349{
350    int c;
351    int i;
352
353    for (i = p % scp->xsize; i < scp->xsize; ++i) {
354	c = sc_vtb_getc(&scp->vtb, p);
355	if (!IS_SPACE_CHAR(c))
356	    break;
357	++p;
358    }
359    return i;
360}
361
362/* skip spaces to left */
363static int
364skip_spc_left(scr_stat *scp, int p)
365{
366    int c;
367    int i;
368
369    for (i = p-- % scp->xsize - 1; i >= 0; --i) {
370	c = sc_vtb_getc(&scp->vtb, p);
371	if (!IS_SPACE_CHAR(c))
372	    break;
373	--p;
374    }
375    return i;
376}
377
378static void
379mouse_do_cut(scr_stat *scp, int from, int to)
380{
381    int blank;
382    int i;
383    int leadspaces;
384    int p;
385    int s;
386
387    for (p = from, i = blank = leadspaces = 0; p <= to; ++p) {
388	cut_buffer[i] = sc_vtb_getc(&scp->vtb, p);
389	/* Be prepared that sc_vtb_getc() can return '\0' */
390	if (cut_buffer[i] == '\0')
391	    cut_buffer[i] = ' ';
392#ifdef SC_CUT_SPACES2TABS
393	if (leadspaces != -1) {
394	    if (IS_SPACE_CHAR(cut_buffer[i])) {
395		leadspaces++;
396		/* Check that we are at tabstop position */
397		if ((p % scp->xsize) % 8 == 7) {
398		    i -= leadspaces - 1;
399		    cut_buffer[i] = '\t';
400		    leadspaces = 0;
401		}
402	    } else {
403		leadspaces = -1;
404	    }
405	}
406#endif /* SC_CUT_SPACES2TABS */
407	/* remember the position of the last non-space char */
408	if (!IS_BLANK_CHAR(cut_buffer[i]))
409	    blank = i + 1;	/* the first space after the last non-space */
410	++i;
411	/* trim trailing blank when crossing lines */
412	if ((p % scp->xsize) == (scp->xsize - 1)) {
413	    cut_buffer[blank++] = '\r';
414	    i = blank;
415	    leadspaces = 0;
416	}
417    }
418    cut_buffer[i] = '\0';
419
420    /* remove the current marking */
421    s = spltty();
422    if (scp->mouse_cut_start <= scp->mouse_cut_end) {
423	mark_for_update(scp, scp->mouse_cut_start);
424	mark_for_update(scp, scp->mouse_cut_end);
425    } else if (scp->mouse_cut_end >= 0) {
426	mark_for_update(scp, scp->mouse_cut_end);
427	mark_for_update(scp, scp->mouse_cut_start);
428    }
429
430    /* mark the new region */
431    scp->mouse_cut_start = from;
432    scp->mouse_cut_end = to;
433    mark_for_update(scp, from);
434    mark_for_update(scp, to);
435    splx(s);
436}
437
438/* copy marked region to the cut buffer */
439static void
440mouse_cut(scr_stat *scp)
441{
442    int start;
443    int end;
444    int from;
445    int to;
446    int c;
447    int p;
448    int s;
449    int i;
450
451    start = scp->mouse_cut_start;
452    end = scp->mouse_cut_end;
453    if (scp->mouse_pos >= start) {
454	from = start;
455	to = end = scp->mouse_pos;
456    } else {
457	from = end = scp->mouse_pos;
458	to = start - 1;
459    }
460    p = to;
461    for (i = p % scp->xsize; i < scp->xsize; ++i) {
462	c = sc_vtb_getc(&scp->vtb, p);
463	if (!IS_SPACE_CHAR(c))
464	    break;
465	++p;
466    }
467    /* if there is nothing but blank chars, trim them, but mark towards eol */
468    if (i == scp->xsize) {
469	if (end >= start)
470	    to = end = p - 1;
471	else
472	    to = start = p;
473    }
474    mouse_do_cut(scp, from, to);
475    s = spltty();
476    scp->mouse_cut_start = start;
477    scp->mouse_cut_end = end;
478    splx(s);
479}
480
481/* a mouse button is pressed, start cut operation */
482static void
483mouse_cut_start(scr_stat *scp)
484{
485    int i;
486    int s;
487
488    if (scp->status & MOUSE_VISIBLE) {
489	sc_remove_all_cutmarkings(scp->sc);
490	if ((scp->mouse_pos == scp->mouse_cut_start) &&
491	    (scp->mouse_pos == scp->mouse_cut_end)) {
492	    cut_buffer[0] = '\0';
493	    return;
494	} else if (skip_spc_right(scp, scp->mouse_pos) >= scp->xsize) {
495	    /* if the pointer is on trailing blank chars, mark towards eol */
496	    i = skip_spc_left(scp, scp->mouse_pos) + 1;
497	    s = spltty();
498	    scp->mouse_cut_start =
499	        rounddown(scp->mouse_pos, scp->xsize) + i;
500	    scp->mouse_cut_end =
501	        (scp->mouse_pos / scp->xsize + 1) * scp->xsize - 1;
502	    splx(s);
503	    cut_buffer[0] = '\r';
504	} else {
505	    s = spltty();
506	    scp->mouse_cut_start = scp->mouse_pos;
507	    scp->mouse_cut_end = scp->mouse_cut_start;
508	    splx(s);
509	    cut_buffer[0] = sc_vtb_getc(&scp->vtb, scp->mouse_cut_start);
510	}
511	cut_buffer[1] = '\0';
512	scp->status |= MOUSE_CUTTING;
513    	mark_all(scp);	/* this is probably overkill XXX */
514    }
515}
516
517/* end of cut operation */
518static void
519mouse_cut_end(scr_stat *scp)
520{
521    if (scp->status & MOUSE_VISIBLE)
522	scp->status &= ~MOUSE_CUTTING;
523}
524
525/* copy a word under the mouse pointer */
526static void
527mouse_cut_word(scr_stat *scp)
528{
529    int start;
530    int end;
531    int sol;
532    int eol;
533    int c;
534    int j;
535    int len;
536
537    /*
538     * Because we don't have locale information in the kernel,
539     * we only distinguish space char and non-space chars.  Punctuation
540     * chars, symbols and other regular chars are all treated alike
541     * unless user specified SC_CUT_SEPCHARS in his kernel config file.
542     */
543    if (scp->status & MOUSE_VISIBLE) {
544	sol = rounddown(scp->mouse_pos, scp->xsize);
545	eol = sol + scp->xsize;
546	c = sc_vtb_getc(&scp->vtb, scp->mouse_pos);
547	if (IS_SEP_CHAR(c)) {
548	    /* blank space */
549	    for (j = scp->mouse_pos; j >= sol; --j) {
550		c = sc_vtb_getc(&scp->vtb, j);
551	        if (!IS_SEP_CHAR(c))
552		    break;
553	    }
554	    start = ++j;
555	    for (j = scp->mouse_pos; j < eol; ++j) {
556		c = sc_vtb_getc(&scp->vtb, j);
557	        if (!IS_SEP_CHAR(c))
558		    break;
559	    }
560	    end = j - 1;
561	} else {
562	    /* non-space word */
563	    for (j = scp->mouse_pos; j >= sol; --j) {
564		c = sc_vtb_getc(&scp->vtb, j);
565	        if (IS_SEP_CHAR(c))
566		    break;
567	    }
568	    start = ++j;
569	    for (j = scp->mouse_pos; j < eol; ++j) {
570		c = sc_vtb_getc(&scp->vtb, j);
571	        if (IS_SEP_CHAR(c))
572		    break;
573	    }
574	    end = j - 1;
575	}
576
577	/* copy the found word */
578	mouse_do_cut(scp, start, end);
579	len = strlen(cut_buffer);
580	if (cut_buffer[len - 1] == '\r')
581	    cut_buffer[len - 1] = '\0';
582    }
583}
584
585/* copy a line under the mouse pointer */
586static void
587mouse_cut_line(scr_stat *scp)
588{
589    int len;
590    int from;
591
592    if (scp->status & MOUSE_VISIBLE) {
593	from = rounddown(scp->mouse_pos, scp->xsize);
594	mouse_do_cut(scp, from, from + scp->xsize - 1);
595	len = strlen(cut_buffer);
596	if (cut_buffer[len - 1] == '\r')
597	    cut_buffer[len - 1] = '\0';
598	scp->status |= MOUSE_CUTTING;
599    }
600}
601
602/* extend the marked region to the mouse pointer position */
603static void
604mouse_cut_extend(scr_stat *scp)
605{
606    int start;
607    int end;
608    int s;
609
610    if ((scp->status & MOUSE_VISIBLE) && !(scp->status & MOUSE_CUTTING)
611	&& (scp->mouse_cut_end >= 0)) {
612	if (scp->mouse_cut_start <= scp->mouse_cut_end) {
613	    start = scp->mouse_cut_start;
614	    end = scp->mouse_cut_end;
615	} else {
616	    start = scp->mouse_cut_end;
617	    end = scp->mouse_cut_start - 1;
618	}
619	s = spltty();
620	if (scp->mouse_pos > end) {
621	    scp->mouse_cut_start = start;
622	    scp->mouse_cut_end = end;
623	} else if (scp->mouse_pos < start) {
624	    scp->mouse_cut_start = end + 1;
625	    scp->mouse_cut_end = start;
626	} else {
627	    if (scp->mouse_pos - start > end + 1 - scp->mouse_pos) {
628		scp->mouse_cut_start = start;
629		scp->mouse_cut_end = end;
630	    } else {
631		scp->mouse_cut_start = end + 1;
632		scp->mouse_cut_end = start;
633	    }
634	}
635	splx(s);
636	mouse_cut(scp);
637	scp->status |= MOUSE_CUTTING;
638    }
639}
640
641/* paste cut buffer contents into the current vty */
642void
643sc_mouse_paste(scr_stat *scp)
644{
645    sc_paste(scp, cut_buffer, strlen(cut_buffer));
646}
647
648#endif /* SC_NO_CUTPASTE */
649
650int
651sc_mouse_ioctl(struct tty *tp, u_long cmd, caddr_t data, struct thread *td)
652{
653    mouse_info_t *mouse;
654    mouse_info_t buf;
655    scr_stat *cur_scp;
656    scr_stat *scp;
657    struct proc *p1;
658    int s;
659    int f __unused;
660
661    scp = SC_STAT(tp);
662
663    switch (cmd) {
664    case CONS_MOUSECTL:		/* control mouse arrow */
665    case OLD_CONS_MOUSECTL:
666
667	mouse = (mouse_info_t*)data;
668
669	random_harvest_queue(mouse, sizeof(mouse_info_t), 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(cur_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		    kern_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(cur_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		    kern_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