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 __FBSDID("$FreeBSD$"); 33 34 #include <stdio.h> 35 #include <sys/types.h> 36 #include <sys/ioctl.h> 37 #include <termios.h> 38 #include <sys/time.h> 39 #include <sys/fbio.h> 40 #include <sys/kbio.h> 41 #include "vgl.h" 42 43 static struct termios VGLKeyboardTty; 44 static int VGLKeyboardMode = -1; 45 46 int 47 VGLKeyboardInit(int mode) 48 { 49 static struct termios term; 50 51 ioctl(0, KDGKBMODE, &VGLKeyboardMode); 52 tcgetattr(0, &VGLKeyboardTty); 53 54 term = VGLKeyboardTty; 55 cfmakeraw(&term); 56 term.c_iflag = IGNPAR | IGNBRK; 57 term.c_oflag = OPOST | ONLCR; 58 term.c_cflag = CREAD | CS8; 59 term.c_lflag &= ~(ICANON | ECHO | ISIG); 60 term.c_cc[VTIME] = 0; 61 term.c_cc[VMIN] = 0; 62 cfsetispeed(&term, 9600); 63 cfsetospeed(&term, 9600); 64 tcsetattr(0, TCSANOW | TCSAFLUSH, &term); 65 66 switch (mode) { 67 case VGL_RAWKEYS: 68 ioctl(0, KDSKBMODE, K_RAW); 69 break; 70 case VGL_CODEKEYS: 71 ioctl(0, KDSKBMODE, K_CODE); 72 break; 73 case VGL_XLATEKEYS: 74 ioctl(0, KDSKBMODE, K_XLATE); 75 break; 76 } 77 return 0; 78 } 79 80 void 81 VGLKeyboardEnd() 82 { 83 if (VGLKeyboardMode != -1) { 84 ioctl(0, KDSKBMODE, VGLKeyboardMode); 85 tcsetattr(0, TCSANOW | TCSAFLUSH, &VGLKeyboardTty); 86 } 87 } 88 89 int 90 VGLKeyboardGetCh() 91 { 92 unsigned char ch = 0; 93 94 read (0, &ch, 1); 95 return (int)ch; 96 } 97