/**************************************************************************** | |
** | |
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). | |
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** Contact: Nokia Corporation (qt-info@nokia.com) | |
** | |
** This file is part of the QtGui module of the Qt Toolkit. | |
** | |
** $QT_BEGIN_LICENSE:LGPL$ | |
** GNU Lesser General Public License Usage | |
** 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 | |
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** file. Please review the following information to ensure the GNU Lesser | |
** General Public License version 2.1 requirements will be met: | |
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** | |
** 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. | |
** | |
** 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: | |
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** $QT_END_LICENSE$ | |
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****************************************************************************/ | |
#include "qkbdtty_qws.h" | |
#if !defined(QT_NO_QWS_KEYBOARD) && !defined(QT_NO_QWS_KBD_TTY) | |
#include <QSocketNotifier> | |
#include <QStringList> | |
#include <qplatformdefs.h> | |
#include <private/qcore_unix_p.h> // overrides QT_OPEN | |
#include <errno.h> | |
#include <termios.h> | |
#if defined Q_OS_LINUX | |
# include <linux/kd.h> | |
# include <linux/vt.h> //TODO: move vt handling somewhere else (QLinuxFbScreen?) | |
# include "qscreen_qws.h" | |
# include "qwindowsystem_qws.h" | |
# include "qapplication.h" | |
# include "private/qwindowsurface_qws_p.h" | |
# include "private/qwssignalhandler_p.h" | |
# define VTACQSIG SIGUSR1 | |
# define VTRELSIG SIGUSR2 | |
#endif | |
QT_BEGIN_NAMESPACE | |
class QWSTtyKbPrivate : public QObject | |
{ | |
Q_OBJECT | |
public: | |
QWSTtyKbPrivate(QWSTtyKeyboardHandler *handler, const QString &device); | |
~QWSTtyKbPrivate(); | |
private: | |
void switchLed(char, bool); | |
void switchConsole(int vt); | |
private Q_SLOTS: | |
void readKeycode(); | |
void handleConsoleSwitch(int sig); | |
private: | |
QWSTtyKeyboardHandler *m_handler; | |
int m_tty_fd; | |
struct termios m_tty_attr; | |
char m_last_keycode; | |
int m_vt_qws; | |
int m_orig_kbmode; | |
}; | |
QWSTtyKeyboardHandler::QWSTtyKeyboardHandler(const QString &device) | |
: QWSKeyboardHandler(device) | |
{ | |
d = new QWSTtyKbPrivate(this, device); | |
} | |
QWSTtyKeyboardHandler::~QWSTtyKeyboardHandler() | |
{ | |
delete d; | |
} | |
bool QWSTtyKeyboardHandler::filterKeycode(char &) | |
{ | |
return false; | |
} | |
QWSTtyKbPrivate::QWSTtyKbPrivate(QWSTtyKeyboardHandler *h, const QString &device) | |
: m_handler(h), m_tty_fd(-1), m_last_keycode(0), m_vt_qws(0), m_orig_kbmode(K_XLATE) | |
{ | |
setObjectName(QLatin1String("TTY Keyboard Handler")); | |
#ifndef QT_NO_QWS_SIGNALHANDLER | |
QWSSignalHandler::instance()->addObject(this); | |
#endif | |
QString dev = QLatin1String("/dev/tty0"); | |
int repeat_delay = -1; | |
int repeat_rate = -1; | |
QStringList args = device.split(QLatin1Char(':')); | |
foreach (const QString &arg, args) { | |
if (arg.startsWith(QLatin1String("repeat-delay="))) | |
repeat_delay = arg.mid(13).toInt(); | |
else if (arg.startsWith(QLatin1String("repeat-rate="))) | |
repeat_rate = arg.mid(12).toInt(); | |
else if (arg.startsWith(QLatin1String("/dev/"))) | |
dev = arg; | |
} | |
m_tty_fd = QT_OPEN(dev.toLocal8Bit().constData(), O_RDWR, 0); | |
if (m_tty_fd >= 0) { | |
if (repeat_delay > 0 && repeat_rate > 0) { | |
#if defined(Q_OS_LINUX) | |
struct ::kbd_repeat kbdrep = { repeat_delay, repeat_rate }; | |
::ioctl(m_tty_fd, KDKBDREP, &kbdrep); | |
#endif | |
} | |
QSocketNotifier *notifier; | |
notifier = new QSocketNotifier(m_tty_fd, QSocketNotifier::Read, this); | |
connect(notifier, SIGNAL(activated(int)), this, SLOT(readKeycode())); | |
// save tty config for restore. | |
tcgetattr(m_tty_fd, &m_tty_attr); | |
struct ::termios termdata; | |
tcgetattr(m_tty_fd, &termdata); | |
#if defined(Q_OS_LINUX) | |
// record the original mode so we can restore it again in the destructor. | |
::ioctl(m_tty_fd, KDGKBMODE, &m_orig_kbmode); | |
// PLEASE NOTE: | |
// the tty keycode interface can only report keycodes 0x01 .. 0x7f | |
// KEY_MAX is however defined to 0x1ff. In practice this is sufficient | |
// for a PC style keyboard though. | |
// we don't support K_RAW anymore - if you need that, you have to add | |
// a scan- to keycode converter yourself. | |
::ioctl(m_tty_fd, KDSKBMODE, K_MEDIUMRAW); | |
#endif | |
// set the tty layer to pass-through | |
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(m_tty_fd, TCSANOW, &termdata); | |
#if defined(Q_OS_LINUX) | |
// VT switching is handled via unix signals | |
connect(QApplication::instance(), SIGNAL(unixSignal(int)), this, SLOT(handleConsoleSwitch(int))); | |
QApplication::instance()->watchUnixSignal(VTACQSIG, true); | |
QApplication::instance()->watchUnixSignal(VTRELSIG, true); | |
struct ::vt_mode vtMode; | |
if (::ioctl(m_tty_fd, VT_GETMODE, &vtMode) == 0) { | |
vtMode.mode = VT_PROCESS; | |
vtMode.relsig = VTRELSIG; | |
vtMode.acqsig = VTACQSIG; | |
if (::ioctl(m_tty_fd, VT_SETMODE, &vtMode) == 0) { | |
struct ::vt_stat vtStat; | |
::memset(&vtStat, 0, sizeof(vtStat)); | |
if (::ioctl(m_tty_fd, VT_GETSTATE, &vtStat) == 0 ) { | |
m_vt_qws = vtStat.v_active; | |
} | |
} | |
} | |
if (!m_vt_qws) | |
qWarning("Could not initialize virtual console switching"); | |
#endif | |
} else { | |
qWarning("Cannot open input device '%s': %s", qPrintable(dev), strerror(errno)); | |
return; | |
} | |
} | |
QWSTtyKbPrivate::~QWSTtyKbPrivate() | |
{ | |
if (m_tty_fd >= 0) { | |
#if defined(Q_OS_LINUX) | |
::ioctl(m_tty_fd, KDSKBMODE, m_orig_kbmode); | |
#endif | |
tcsetattr(m_tty_fd, TCSANOW, &m_tty_attr); | |
QT_CLOSE(m_tty_fd); | |
} | |
} | |
void QWSTtyKbPrivate::switchLed(char led, bool state) | |
{ | |
#if defined(Q_OS_LINUX) | |
char ledstate; | |
::ioctl(m_tty_fd, KDGETLED, &ledstate); | |
if (state) | |
ledstate |= led; | |
else | |
ledstate &= ~led; | |
::ioctl(m_tty_fd, KDSETLED, ledstate); | |
#endif | |
} | |
void QWSTtyKbPrivate::readKeycode() | |
{ | |
char buffer[32]; | |
int n = 0; | |
forever { | |
n = QT_READ(m_tty_fd, buffer + n, 32 - n); | |
if (n == 0) { | |
qWarning("Got EOF from the input device."); | |
return; | |
} else if (n < 0 && (errno != EINTR && errno != EAGAIN)) { | |
qWarning("Could not read from input device: %s", strerror(errno)); | |
return; | |
} else { | |
break; | |
} | |
} | |
for (int i = 0; i < n; ++i) { | |
if (m_handler->filterKeycode(buffer[i])) | |
continue; | |
QWSKeyboardHandler::KeycodeAction ka; | |
ka = m_handler->processKeycode(buffer[i] & 0x7f, (buffer[i] & 0x80) == 0x00, buffer[i] == m_last_keycode); | |
m_last_keycode = buffer[i]; | |
switch (ka) { | |
case QWSKeyboardHandler::CapsLockOn: | |
case QWSKeyboardHandler::CapsLockOff: | |
switchLed(LED_CAP, ka == QWSKeyboardHandler::CapsLockOn); | |
break; | |
case QWSKeyboardHandler::NumLockOn: | |
case QWSKeyboardHandler::NumLockOff: | |
switchLed(LED_NUM, ka == QWSKeyboardHandler::NumLockOn); | |
break; | |
case QWSKeyboardHandler::ScrollLockOn: | |
case QWSKeyboardHandler::ScrollLockOff: | |
switchLed(LED_SCR, ka == QWSKeyboardHandler::ScrollLockOn); | |
break; | |
case QWSKeyboardHandler::PreviousConsole: | |
switchConsole(qBound(1, m_vt_qws - 1, 10)); | |
break; | |
case QWSKeyboardHandler::NextConsole: | |
switchConsole(qBound(1, m_vt_qws + 1, 10)); | |
break; | |
default: | |
if (ka >= QWSKeyboardHandler::SwitchConsoleFirst && | |
ka <= QWSKeyboardHandler::SwitchConsoleLast) { | |
switchConsole(1 + (ka & QWSKeyboardHandler::SwitchConsoleMask)); | |
} | |
//ignore reboot | |
break; | |
} | |
} | |
} | |
void QWSTtyKbPrivate::switchConsole(int vt) | |
{ | |
#if defined(Q_OS_LINUX) | |
if (m_vt_qws && vt && (m_tty_fd >= 0 )) | |
::ioctl(m_tty_fd, VT_ACTIVATE, vt); | |
#endif | |
} | |
void QWSTtyKbPrivate::handleConsoleSwitch(int sig) | |
{ | |
#if defined(Q_OS_LINUX) | |
// received a notification from the kernel that the current VT is | |
// changing: either enable or disable QWS painting accordingly. | |
if (sig == VTACQSIG) { | |
if (::ioctl(m_tty_fd, 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(m_tty_fd, VT_RELDISP, 0); // abort console switch | |
qwsServer->enablePainting(true); | |
} else if (::ioctl(m_tty_fd, VT_RELDISP, 1) == 0) { | |
qt_screen->save(); | |
qwsServer->suspendMouse(); | |
} else { | |
qwsServer->enablePainting(true); | |
} | |
} | |
#endif | |
} | |
QT_END_NAMESPACE | |
#include "qkbdtty_qws.moc" | |
#endif // QT_NO_QWS_KEYBOARD || QT_NO_QWS_KBD_TTY |