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
30 #include <sys/cdefs.h>
31 #include "opt_syscons.h"
32
33 #include <sys/param.h>
34 #include <sys/systm.h>
35 #include <sys/kernel.h>
36 #include <sys/consio.h>
37
38 #include <dev/syscons/syscons.h>
39
40 SET_DECLARE(scterm_set, sc_term_sw_t);
41
42 /* exported subroutines */
43
44 void
sc_move_cursor(scr_stat * scp,int x,int y)45 sc_move_cursor(scr_stat *scp, int x, int y)
46 {
47 if (x < 0)
48 x = 0;
49 if (y < 0)
50 y = 0;
51 if (x >= scp->xsize)
52 x = scp->xsize - 1;
53 if (y >= scp->ysize)
54 y = scp->ysize - 1;
55 scp->xpos = x;
56 scp->ypos = y;
57 scp->cursor_pos = scp->ypos*scp->xsize + scp->xpos;
58 }
59
60 void
sc_clear_screen(scr_stat * scp)61 sc_clear_screen(scr_stat *scp)
62 {
63 (*scp->tsw->te_clear)(scp);
64 scp->cursor_oldpos = scp->cursor_pos;
65 sc_remove_cutmarking(scp);
66 }
67
68 /* terminal emulator manager routines */
69
70 static LIST_HEAD(, sc_term_sw) sc_term_list =
71 LIST_HEAD_INITIALIZER(sc_term_list);
72
73 int
sc_term_add(sc_term_sw_t * sw)74 sc_term_add(sc_term_sw_t *sw)
75 {
76 LIST_INSERT_HEAD(&sc_term_list, sw, link);
77 return 0;
78 }
79
80 int
sc_term_remove(sc_term_sw_t * sw)81 sc_term_remove(sc_term_sw_t *sw)
82 {
83 LIST_REMOVE(sw, link);
84 return 0;
85 }
86
87 sc_term_sw_t
sc_term_match(char * name)88 *sc_term_match(char *name)
89 {
90 sc_term_sw_t **list;
91 sc_term_sw_t *p;
92
93 if (!LIST_EMPTY(&sc_term_list)) {
94 LIST_FOREACH(p, &sc_term_list, link) {
95 if ((strcmp(name, p->te_name) == 0)
96 || (strcmp(name, "*") == 0)) {
97 return p;
98 }
99 }
100 } else {
101 SET_FOREACH(list, scterm_set) {
102 p = *list;
103 if ((strcmp(name, p->te_name) == 0)
104 || (strcmp(name, "*") == 0)) {
105 return p;
106 }
107 }
108 }
109
110 return NULL;
111 }
112
113 sc_term_sw_t
sc_term_match_by_number(int index)114 *sc_term_match_by_number(int index)
115 {
116 sc_term_sw_t *p;
117
118 if (index <= 0)
119 return NULL;
120 LIST_FOREACH(p, &sc_term_list, link) {
121 if (--index <= 0)
122 return p;
123 }
124
125 return NULL;
126 }
127