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/***************************************************************************
**
** Copyright (C) 2012 Research In Motion
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtBluetooth 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 "qbluetoothdevicediscoveryagent.h"
#include "qbluetoothdevicediscoveryagent_p.h"
#include "qbluetoothaddress.h"
#include "qbluetoothuuid.h"
#include <QtCore/private/qcore_unix_p.h>
QT_BEGIN_NAMESPACE_BLUETOOTH
QBluetoothDeviceDiscoveryAgentPrivate::QBluetoothDeviceDiscoveryAgentPrivate():
QObject(0), lastError(QBluetoothDeviceDiscoveryAgent::NoError), pendingCancel(false), pendingStart(false), m_rdfd(-1)
{
}
QBluetoothDeviceDiscoveryAgentPrivate::~QBluetoothDeviceDiscoveryAgentPrivate()
{
if (pendingStart)
stop();
ppsUnregisterForEvent(QStringLiteral("device_added"), this);
ppsUnregisterForEvent(QStringLiteral("device_search"), this);
}
bool QBluetoothDeviceDiscoveryAgentPrivate::isActive() const
{
return pendingStart;
}
void QBluetoothDeviceDiscoveryAgentPrivate::start()
{
qBBBluetoothDebug() << "Starting device discovery";
Q_Q(QBluetoothDeviceDiscoveryAgent);
if (pendingStart)
return;
pendingStart = true;
discoveredDevices.clear();
if (m_rdfd != -1 || (m_rdfd = qt_safe_open("/pps/services/bluetooth/remote_devices/.all", O_RDONLY)) == -1) {
qWarning() << Q_FUNC_INFO << "rdfd - failed to open /pps/services/bluetooth/remote_devices/.all";
lastError = QBluetoothDeviceDiscoveryAgent::IOFailure;
emit q->error(lastError);
stop();
return;
} else {
m_rdNotifier = new QSocketNotifier(m_rdfd, QSocketNotifier::Read, this);
if (m_rdNotifier) {
connect(m_rdNotifier, SIGNAL(activated(int)), this, SLOT(remoteDevicesChanged(int)));
} else {
qWarning() << Q_FUNC_INFO << "failed to connect to m_rdNotifier";
lastError = QBluetoothDeviceDiscoveryAgent::IOFailure;
emit q->error(lastError);
stop();
return;
}
}
//If there is no new results after 7 seconds, the device inquire will be stopped
m_finishedTimer.start(7000);
connect(&m_finishedTimer, SIGNAL(timeout()), this, SLOT(finished()));
if (!m_controlRegistered) {
ppsRegisterControl();
m_controlRegistered = true;
}
ppsSendControlMessage("device_search", this);
ppsRegisterForEvent(QStringLiteral("device_added"), this);
ppsRegisterForEvent(QStringLiteral("device_search"), this);
}
void QBluetoothDeviceDiscoveryAgentPrivate::stop()
{
Q_Q(QBluetoothDeviceDiscoveryAgent);
qBBBluetoothDebug() << "Stopping device search";
ppsSendControlMessage("cancel_device_search",this);
emit q->canceled();
abort();
}
void QBluetoothDeviceDiscoveryAgentPrivate::remoteDevicesChanged(int fd)
{
pps_decoder_t ppsDecoder;
pps_decoder_initialize(&ppsDecoder, NULL);
QBluetoothAddress deviceAddr;
QString deviceName;
if (!ppsReadRemoteDevice(fd, &ppsDecoder, &deviceAddr, &deviceName)) {
return;
}
bool paired = false;
int cod = 0;
int dev_type = 0;
int rssi = 0;
pps_decoder_get_bool(&ppsDecoder, "paired", &paired);
pps_decoder_get_int(&ppsDecoder, "cod", &cod);
pps_decoder_get_int(&ppsDecoder, "dev_type", &dev_type);
pps_decoder_get_int(&ppsDecoder, "rssi", &rssi);
pps_decoder_cleanup(&ppsDecoder);
QBluetoothDeviceInfo deviceInfo(deviceAddr, deviceName, cod);
deviceInfo.setRssi(rssi);
//Prevent a device from beeing listed twice
for (int i=0; i < discoveredDevices.size(); i++) {
if (discoveredDevices.at(i).address() == deviceInfo.address()) {
if (discoveredDevices.at(i) == deviceInfo) {
return;
} else {
discoveredDevices.removeAt(i);
break;
}
}
}
//Starts the timer again
m_finishedTimer.start(7000);
if (!deviceAddr.isNull()) {
discoveredDevices.append(deviceInfo);
qBBBluetoothDebug() << "Device discovered: " << deviceName << deviceAddr.toString();
emit q_ptr->deviceDiscovered(discoveredDevices.last());
}
}
void QBluetoothDeviceDiscoveryAgentPrivate::controlReply(ppsResult result)
{
if (result.msg == QStringLiteral("device_search")) {
if (result.dat.size() > 0 && result.dat.first() == QStringLiteral("EOK")) {
//Do nothing. We can not be certain, that the device search is over yet
}
else {
qWarning() << "A PPS Bluetooth error occured:" << result.errorMsg;
q_ptr->error(QBluetoothDeviceDiscoveryAgent::UnknownError);
lastError = QBluetoothDeviceDiscoveryAgent::UnknownError;
errorString = result.errorMsg;
stop();
}
} else if (result.msg == QStringLiteral("cancel_device_search")) {
qBBBluetoothDebug() << "Cancel device search";
if (result.error == 16) {
qWarning() << Q_FUNC_INFO << "Resource is busy. Is Bluetooth enabled?";
lastError = QBluetoothDeviceDiscoveryAgent::PoweredOff;
errorString = result.errorMsg;
}
//stop();
}
}
void QBluetoothDeviceDiscoveryAgentPrivate::controlEvent(ppsResult result)
{
if (result.msg == QStringLiteral("device_added")) {
qBBBluetoothDebug() << "Device was added" << result.dat.first();
}
}
void QBluetoothDeviceDiscoveryAgentPrivate::finished()
{
qBBBluetoothDebug() << "Device discovery finished";
m_finishedTimer.stop();
stop();
q_ptr->finished();
}
void QBluetoothDeviceDiscoveryAgentPrivate::abort()
{
if (m_controlRegistered) {
ppsUnregisterControl(this);
m_controlRegistered = false;
}
pendingStart = false;
if (m_rdNotifier) {
delete m_rdNotifier;
m_rdNotifier = 0;
}
if (m_rdfd != -1) {
qt_safe_close(m_rdfd);
m_rdfd = -1;
}
}
QT_END_NAMESPACE_BLUETOOTH
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