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 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 79 VGLKeyboardEnd() 80 { 81 if (VGLKeyboardMode != -1) { 82 ioctl(0, KDSKBMODE, VGLKeyboardMode); 83 tcsetattr(0, TCSANOW | TCSAFLUSH, &VGLKeyboardTty); 84 } 85 } 86 87 int 88 VGLKeyboardGetCh() 89 { 90 unsigned char ch = 0; 91 92 read (0, &ch, 1); 93 return (int)ch; 94 } 95