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/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qkbdvr41xx_qws.h"
#if !defined(QT_NO_QWS_KEYBOARD) && !defined(QT_NO_QWS_KBD_VR41XX)
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <fcntl.h>
#include <termios.h>
#include <unistd.h>
#include <errno.h>
#include <qsocketnotifier.h>
QT_BEGIN_NAMESPACE
class QWSVr41xxKbPrivate : public QObject
{
Q_OBJECT
public:
QWSVr41xxKbPrivate(QWSVr41xxKeyboardHandler *h, const QString&);
virtual ~QWSVr41xxKbPrivate();
bool isOpen() { return buttonFD > 0; }
private slots:
void readKeyboardData();
private:
QString terminalName;
int buttonFD;
int kbdIdx;
int kbdBufferLen;
unsigned char *kbdBuffer;
QSocketNotifier *notifier;
QWSVr41xxKeyboardHandler *handler;
};
QWSVr41xxKeyboardHandler::QWSVr41xxKeyboardHandler(const QString &device)
{
d = new QWSVr41xxKbPrivate(this, device);
}
QWSVr41xxKeyboardHandler::~QWSVr41xxKeyboardHandler()
{
delete d;
}
QWSVr41xxKbPrivate::QWSVr41xxKbPrivate(QWSVr41xxKeyboardHandler *h, const QString &device) : handler(h)
{
terminalName = device;
if (terminalName.isEmpty())
terminalName = QLatin1String("/dev/buttons");
buttonFD = -1;
notifier = 0;
buttonFD = open(terminalName.toLatin1().constData(), O_RDWR | O_NDELAY, 0);;
if (buttonFD < 0) {
qWarning("Cannot open %s\n", qPrintable(terminalName));
return;
}
if (buttonFD >= 0) {
notifier = new QSocketNotifier(buttonFD, QSocketNotifier::Read, this);
connect(notifier, SIGNAL(activated(int)),this,
SLOT(readKeyboardData()));
}
kbdBufferLen = 80;
kbdBuffer = new unsigned char [kbdBufferLen];
kbdIdx = 0;
}
QWSVr41xxKbPrivate::~QWSVr41xxKbPrivate()
{
if (buttonFD > 0) {
::close(buttonFD);
buttonFD = -1;
}
delete notifier;
notifier = 0;
delete [] kbdBuffer;
}
void QWSVr41xxKbPrivate::readKeyboardData()
{
int n = 0;
do {
n = read(buttonFD, kbdBuffer+kbdIdx, kbdBufferLen - kbdIdx);
if (n > 0)
kbdIdx += n;
} while (n > 0);
int idx = 0;
while (kbdIdx - idx >= 2) {
unsigned char *next = kbdBuffer + idx;
unsigned short *code = (unsigned short *)next;
int keycode = Qt::Key_unknown;
switch ((*code) & 0x0fff) {
case 0x7:
keycode = Qt::Key_Up;
break;
case 0x9:
keycode = Qt::Key_Right;
break;
case 0x8:
keycode = Qt::Key_Down;
break;
case 0xa:
keycode = Qt::Key_Left;
break;
case 0x3:
keycode = Qt::Key_Up;
break;
case 0x4:
keycode = Qt::Key_Down;
break;
case 0x1:
keycode = Qt::Key_Return;
break;
case 0x2:
keycode = Qt::Key_F4;
break;
default:
qDebug("Unrecognised key sequence %d", *code);
}
if ((*code) & 0x8000)
handler->processKeyEvent(0, keycode, 0, false, false);
else
handler->processKeyEvent(0, keycode, 0, true, false);
idx += 2;
}
int surplus = kbdIdx - idx;
for (int i = 0; i < surplus; i++)
kbdBuffer[i] = kbdBuffer[idx+i];
kbdIdx = surplus;
}
QT_END_NAMESPACE
#include "qkbdvr41xx_qws.moc"
#endif // QT_NO_QWS_KBD_VR41XX
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