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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** 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, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qkbdtty_qws.h"
#if !defined(QT_NO_QWS_KEYBOARD) && !defined(QT_NO_QWS_KBD_TTY)
#include "qscreen_qws.h"
#include "qwindowsystem_qws.h"
#include "qapplication.h"
#include "qsocketnotifier.h"
#include "qnamespace.h"
#include "qtimer.h"
#include <private/qwssignalhandler_p.h>
#include <private/qwindowsurface_qws_p.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include <signal.h>
#include <termios.h>
#include <qeventloop.h>
#ifdef Q_OS_LINUX
#include <sys/kd.h>
#include <sys/vt.h>
#endif
QT_BEGIN_NAMESPACE
#define VTACQSIG SIGUSR1
#define VTRELSIG SIGUSR2
static int vtQws = 0;
static int kbdFD = -1;
//===========================================================================
//
// Tty keyboard
//
class QWSTtyKbPrivate : public QObject
{
Q_OBJECT
public:
QWSTtyKbPrivate(QWSPC101KeyboardHandler *, const QString &device);
~QWSTtyKbPrivate();
private slots:
void readKeyboardData();
void handleTtySwitch(int);
private:
QWSPC101KeyboardHandler *handler;
struct termios origTermData;
int originalKbdMode;
};
QWSTtyKeyboardHandler::QWSTtyKeyboardHandler(const QString &device)
: QWSPC101KeyboardHandler(device)
{
d = new QWSTtyKbPrivate(this, device);
}
QWSTtyKeyboardHandler::~QWSTtyKeyboardHandler()
{
delete d;
}
void QWSTtyKeyboardHandler::processKeyEvent(int unicode, int keycode,
Qt::KeyboardModifiers modifiers, bool isPress,
bool autoRepeat)
{
#if defined(Q_OS_LINUX)
// Virtual console switching
int term = 0;
bool ctrl = modifiers & Qt::ControlModifier;
bool alt = modifiers & Qt::AltModifier;
if (ctrl && alt && keycode >= Qt::Key_F1 && keycode <= Qt::Key_F10)
term = keycode - Qt::Key_F1 + 1;
else if (ctrl && alt && keycode == Qt::Key_Left)
term = qMax(vtQws - 1, 1);
else if (ctrl && alt && keycode == Qt::Key_Right)
term = qMin(vtQws + 1, 10);
if (term && isPress) {
ioctl(kbdFD, VT_ACTIVATE, term);
return;
}
#endif
QWSPC101KeyboardHandler::processKeyEvent(unicode, keycode, modifiers,
isPress, autoRepeat);
}
QWSTtyKbPrivate::QWSTtyKbPrivate(QWSPC101KeyboardHandler *h, const QString &device) : handler(h)
{
kbdFD = ::open(device.isEmpty()?"/dev/tty0":device.toLatin1().constData(), O_RDWR|O_NDELAY, 0);
#ifndef QT_NO_QWS_SIGNALHANDLER
QWSSignalHandler::instance()->addObject(this);
#endif
if (kbdFD >= 0) {
QSocketNotifier *notifier;
notifier = new QSocketNotifier(kbdFD, QSocketNotifier::Read, this);
connect(notifier, SIGNAL(activated(int)),this,
SLOT(readKeyboardData()));
// save for restore.
tcgetattr(kbdFD, &origTermData);
struct termios termdata;
tcgetattr(kbdFD, &termdata);
#if defined(Q_OS_LINUX)
ioctl(kbdFD, KDGKBMODE, &originalKbdMode);
# ifdef QT_QWS_USE_KEYCODES
ioctl(kbdFD, KDSKBMODE, K_MEDIUMRAW);
# else
ioctl(kbdFD, KDSKBMODE, K_RAW);
# endif
#endif
termdata.c_iflag = (IGNPAR | IGNBRK) & (~PARMRK) & (~ISTRIP);
termdata.c_oflag = 0;
termdata.c_cflag = CREAD | CS8;
termdata.c_lflag = 0;
termdata.c_cc[VTIME]=0;
termdata.c_cc[VMIN]=1;
cfsetispeed(&termdata, 9600);
cfsetospeed(&termdata, 9600);
tcsetattr(kbdFD, TCSANOW, &termdata);
#if defined(Q_OS_LINUX)
connect(QApplication::instance(), SIGNAL(unixSignal(int)), this, SLOT(handleTtySwitch(int)));
QApplication::instance()->watchUnixSignal(VTACQSIG, true);
QApplication::instance()->watchUnixSignal(VTRELSIG, true);
struct vt_mode vtMode;
ioctl(kbdFD, VT_GETMODE, &vtMode);
// let us control VT switching
vtMode.mode = VT_PROCESS;
vtMode.relsig = VTRELSIG;
vtMode.acqsig = VTACQSIG;
ioctl(kbdFD, VT_SETMODE, &vtMode);
struct vt_stat vtStat;
ioctl(kbdFD, VT_GETSTATE, &vtStat);
vtQws = vtStat.v_active;
#endif
} else {
qCritical("Cannot open keyboard: %s", strerror(errno));
}
}
QWSTtyKbPrivate::~QWSTtyKbPrivate()
{
if (kbdFD >= 0) {
#if defined(Q_OS_LINUX)
ioctl(kbdFD, KDSKBMODE, originalKbdMode);
#endif
tcsetattr(kbdFD, TCSANOW, &origTermData);
::close(kbdFD);
kbdFD = -1;
}
}
void QWSTtyKbPrivate::handleTtySwitch(int sig)
{
#if defined(Q_OS_LINUX)
if (sig == VTACQSIG) {
if (ioctl(kbdFD, VT_RELDISP, VT_ACKACQ) == 0) {
qwsServer->enablePainting(true);
qt_screen->restore();
qwsServer->resumeMouse();
qwsServer->refresh();
}
} else if (sig == VTRELSIG) {
qwsServer->enablePainting(false);
// Check for reserved surfaces which might still do painting
bool allWindowsHidden = true;
const QList<QWSWindow*> windows = QWSServer::instance()->clientWindows();
for (int i = 0; i < windows.size(); ++i) {
const QWSWindow *w = windows.at(i);
QWSWindowSurface *s = w->windowSurface();
if (s && s->isRegionReserved() && !w->allocatedRegion().isEmpty()) {
allWindowsHidden = false;
break;
}
}
if (!allWindowsHidden) {
ioctl(kbdFD, VT_RELDISP, 0); // abort console switch
qwsServer->enablePainting(true);
} else if (ioctl(kbdFD, VT_RELDISP, 1) == 0) {
qt_screen->save();
qwsServer->suspendMouse();
} else {
qwsServer->enablePainting(true);
}
}
#endif
}
void QWSTtyKbPrivate::readKeyboardData()
{
unsigned char buf[81];
int n = read(kbdFD, buf, 80);
for (int loop = 0; loop < n; loop++)
handler->doKey(buf[loop]);
}
QT_END_NAMESPACE
#include "qkbdtty_qws.moc"
#endif // QT_NO_QWS_KEYBOARD || QT_NO_QWS_KBD_TTY
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