1 /*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1997 Søren Schmidt
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
12 * in this position and unchanged.
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 * 3. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #include <sys/cdefs.h>
32 #include <stdio.h>
33 #include <sys/types.h>
34 #include <sys/ioctl.h>
35 #include <termios.h>
36 #include <sys/time.h>
37 #include <sys/fbio.h>
38 #include <sys/kbio.h>
39 #include "vgl.h"
40
41 static struct termios VGLKeyboardTty;
42 static int VGLKeyboardMode = -1;
43
44 int
VGLKeyboardInit(int mode)45 VGLKeyboardInit(int mode)
46 {
47 static struct termios term;
48
49 ioctl(0, KDGKBMODE, &VGLKeyboardMode);
50 tcgetattr(0, &VGLKeyboardTty);
51
52 term = VGLKeyboardTty;
53 cfmakeraw(&term);
54 term.c_iflag = IGNPAR | IGNBRK;
55 term.c_oflag = OPOST | ONLCR;
56 term.c_cflag = CREAD | CS8;
57 term.c_lflag &= ~(ICANON | ECHO | ISIG);
58 term.c_cc[VTIME] = 0;
59 term.c_cc[VMIN] = 0;
60 cfsetispeed(&term, 9600);
61 cfsetospeed(&term, 9600);
62 tcsetattr(0, TCSANOW | TCSAFLUSH, &term);
63
64 switch (mode) {
65 case VGL_RAWKEYS:
66 ioctl(0, KDSKBMODE, K_RAW);
67 break;
68 case VGL_CODEKEYS:
69 ioctl(0, KDSKBMODE, K_CODE);
70 break;
71 case VGL_XLATEKEYS:
72 ioctl(0, KDSKBMODE, K_XLATE);
73 break;
74 }
75 return 0;
76 }
77
78 void
VGLKeyboardEnd()79 VGLKeyboardEnd()
80 {
81 if (VGLKeyboardMode != -1) {
82 ioctl(0, KDSKBMODE, VGLKeyboardMode);
83 tcsetattr(0, TCSANOW | TCSAFLUSH, &VGLKeyboardTty);
84 }
85 }
86
87 int
VGLKeyboardGetCh()88 VGLKeyboardGetCh()
89 {
90 unsigned char ch = 0;
91
92 read (0, &ch, 1);
93 return (int)ch;
94 }
95