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5c9a541b66
- Use "OPOST | ONLCR" as a c_oflag in the raw mode instead of 0, which should make debug output mode readable; - flush input buffer when switching to/from raw mode. This should prevent leaking raw scancodes into your shell prompt when program called VGLKeyboardEnd() w/o processing all scancodes in the buffer.
94 lines
2.7 KiB
C
94 lines
2.7 KiB
C
/*-
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* Copyright (c) 1997 Søren Schmidt
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer
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* in this position and unchanged.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software withough specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/ioctl.h>
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#include <termios.h>
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#include <sys/time.h>
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#include <sys/fbio.h>
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#include <sys/kbio.h>
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#include "vgl.h"
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static struct termios VGLKeyboardTty;
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static int VGLKeyboardMode = -1;
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int
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VGLKeyboardInit(int mode)
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{
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static struct termios term;
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ioctl(0, KDGKBMODE, &VGLKeyboardMode);
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tcgetattr(0, &VGLKeyboardTty);
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term = VGLKeyboardTty;
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cfmakeraw(&term);
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term.c_iflag = IGNPAR | IGNBRK;
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term.c_oflag = OPOST | ONLCR;
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term.c_cflag = CREAD | CS8;
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term.c_lflag &= ~(ICANON | ECHO | ISIG);
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term.c_cc[VTIME] = 0;
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term.c_cc[VMIN] = 0;
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cfsetispeed(&term, 9600);
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cfsetospeed(&term, 9600);
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tcsetattr(0, TCSANOW | TCSAFLUSH, &term);
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switch (mode) {
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case VGL_RAWKEYS:
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ioctl(0, KDSKBMODE, K_RAW);
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break;
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case VGL_CODEKEYS:
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ioctl(0, KDSKBMODE, K_CODE);
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break;
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case VGL_XLATEKEYS:
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ioctl(0, KDSKBMODE, K_XLATE);
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break;
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}
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return 0;
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}
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void
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VGLKeyboardEnd()
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{
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if (VGLKeyboardMode != -1) {
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ioctl(0, KDSKBMODE, VGLKeyboardMode);
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tcsetattr(0, TCSANOW | TCSAFLUSH, &VGLKeyboardTty);
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}
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}
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int
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VGLKeyboardGetCh()
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{
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unsigned char ch = 0;
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read (0, &ch, 1);
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return (int)ch;
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}
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