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// HamFax -- an application for sending and receiving amateur radio facsimiles
// Copyright (C) 2001 Christof Schmitt, DH1CS <cschmitt@users.sourceforge.net>
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#include "PTT.hpp"
#include <termios.h>
#include <sys/ioctl.h>
class Error {};
PTT::PTT(QObject* parent)
: QObject(parent), usePTT(false)
{
}
PTT::~PTT(void)
{
device.close();
}
void PTT::setDeviceName(const QString& s)
{
device.setName(s);
}
void PTT::set(void)
{
if(usePTT) {
try {
if(!device.open(IO_WriteOnly)) {
throw Error();
}
int status;
if(ioctl(device.handle(),TIOCMGET,&status)==-1) {
throw Error();
}
status|=TIOCM_RTS;
if(ioctl(device.handle(),TIOCMSET,&status)==-1) {
throw Error();
}
} catch(Error) {
device.close();
}
}
}
void PTT::release(void)
{
if(device.isOpen()) {
try {
int status;
if(ioctl(device.handle(),TIOCMGET,&status)==-1) {
throw Error();
}
status&=~TIOCM_RTS;
if(ioctl(device.handle(),TIOCMSET,&status)==-1) {
throw Error();
}
device.close();
} catch(Error) {
device.close();
}
}
}
void PTT::setUse(bool use)
{
usePTT=use;
}
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