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/*=====================================================================
QGroundControl Open Source Ground Control Station
(c) 2009 - 2015 QGROUNDCONTROL PROJECT <http://www.qgroundcontrol.org>
This file is part of the QGROUNDCONTROL project
QGROUNDCONTROL 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 3 of the License, or
(at your option) any later version.
QGROUNDCONTROL 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 QGROUNDCONTROL. If not, see <http://www.gnu.org/licenses/>.
======================================================================*/
/**
* @file
* @brief Definition of Bluetooth connection for unmanned vehicles
* @author Gus Grubba <mavlink@grubba.com>
*
*/
#include <QtGlobal>
#include <QTimer>
#include <QList>
#include <QDebug>
#include <iostream>
#include <QtBluetooth/QBluetoothDeviceDiscoveryAgent>
#include <QtBluetooth/QBluetoothLocalDevice>
#include <QtBluetooth/QBluetoothUuid>
#include "BluetoothLink.h"
#include "QGC.h"
BluetoothLink::BluetoothLink(BluetoothConfiguration* config)
: _connectState(false)
, _targetSocket(NULL)
#ifdef __ios__
, _discoveryAgent(NULL)
#endif
, _shutDown(false)
{
Q_ASSERT(config != NULL);
_config = config;
_config->setLink(this);
}
BluetoothLink::~BluetoothLink()
{
// Disconnect link from configuration
_config->setLink(NULL);
_disconnect();
#ifdef __ios__
if(_discoveryAgent) {
_shutDown = true;
_discoveryAgent->stop();
_discoveryAgent->deleteLater();
_discoveryAgent = NULL;
}
#endif
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}
void BluetoothLink::run()
{
}
void BluetoothLink::_restartConnection()
{
if(this->isConnected())
{
_disconnect();
_connect();
}
}
QString BluetoothLink::getName() const
{
return _config->name();
}
void BluetoothLink::writeBytes(const char* data, qint64 size)
{
_sendBytes(data, size);
}
void BluetoothLink::_sendBytes(const char* data, qint64 size)
{
if(_targetSocket)
{
if(_targetSocket->isWritable())
{
if(_targetSocket->write(data, size) > 0) {
_logOutputDataRate(size, QDateTime::currentMSecsSinceEpoch());
}
else
qWarning() << "Bluetooth write error";
}
else
qWarning() << "Bluetooth not writable error";
}
}
void BluetoothLink::readBytes()
{
while (_targetSocket->bytesAvailable() > 0)
{
QByteArray datagram;
datagram.resize(_targetSocket->bytesAvailable());
_targetSocket->read(datagram.data(), datagram.size());
emit bytesReceived(this, datagram);
_logInputDataRate(datagram.length(), QDateTime::currentMSecsSinceEpoch());
}
}
void BluetoothLink::_disconnect(void)
{
#ifdef __ios__
if(_discoveryAgent) {
_shutDown = true;
_discoveryAgent->stop();
_discoveryAgent->deleteLater();
_discoveryAgent = NULL;
_targetSocket = NULL;
emit disconnected();
}
_connectState = false;
}
bool BluetoothLink::_connect(void)
{
return true;
}
bool BluetoothLink::_hardwareConnect()
{
#ifdef __ios__
if(_discoveryAgent) {
_shutDown = true;
_discoveryAgent->stop();
_discoveryAgent->deleteLater();
_discoveryAgent = NULL;
}
_discoveryAgent = new QBluetoothServiceDiscoveryAgent(this);
QObject::connect(_discoveryAgent, &QBluetoothServiceDiscoveryAgent::serviceDiscovered, this, &BluetoothLink::serviceDiscovered);
QObject::connect(_discoveryAgent, &QBluetoothServiceDiscoveryAgent::finished, this, &BluetoothLink::discoveryFinished);
QObject::connect(_discoveryAgent, &QBluetoothServiceDiscoveryAgent::canceled, this, &BluetoothLink::discoveryFinished);
QObject::connect(_discoveryAgent, static_cast<void (QBluetoothServiceDiscoveryAgent::*)(QBluetoothSocket::SocketError)>(&QBluetoothServiceDiscoveryAgent::error),
this, &BluetoothLink::discoveryError);
_shutDown = false;
_discoveryAgent->start();
#else
_createSocket();
_targetSocket->connectToService(QBluetoothAddress(_config->device().address), QBluetoothUuid(QBluetoothUuid::Rfcomm));
#endif
return true;
}
void BluetoothLink::_createSocket()
{
if(_targetSocket)
{
delete _targetSocket;
_targetSocket = NULL;
}
_targetSocket = new QBluetoothSocket(QBluetoothServiceInfo::RfcommProtocol, this);
QObject::connect(_targetSocket, &QBluetoothSocket::connected, this, &BluetoothLink::deviceConnected);
QObject::connect(_targetSocket, &QBluetoothSocket::readyRead, this, &BluetoothLink::readBytes);
QObject::connect(_targetSocket, &QBluetoothSocket::disconnected, this, &BluetoothLink::deviceDisconnected);
QObject::connect(_targetSocket, static_cast<void (QBluetoothSocket::*)(QBluetoothSocket::SocketError)>(&QBluetoothSocket::error),
this, &BluetoothLink::deviceError);
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#ifdef __ios__
void BluetoothLink::discoveryError(QBluetoothServiceDiscoveryAgent::Error error)
{
qDebug() << "Discovery error:" << error;
qDebug() << _discoveryAgent->errorString();
}
#endif
#ifdef __ios__
void BluetoothLink::serviceDiscovered(const QBluetoothServiceInfo& info)
{
if(!info.device().name().isEmpty() && !_targetSocket)
{
if(_config->device().uuid == info.device().deviceUuid() && _config->device().name == info.device().name())
{
_createSocket();
_targetSocket->connectToService(info);
}
}
}
#endif
#ifdef __ios__
void BluetoothLink::discoveryFinished()
{
if(_discoveryAgent && !_shutDown)
{
_shutDown = true;
_discoveryAgent->deleteLater();
_discoveryAgent = NULL;
if(!_targetSocket)
{
_connectState = false;
emit communicationError("Could not locate Bluetooth device:", _config->device().name);
}
}
}
#endif
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void BluetoothLink::deviceConnected()
{
_connectState = true;
emit connected();
}
void BluetoothLink::deviceDisconnected()
{
_connectState = false;
qWarning() << "Bluetooth disconnected";
}
void BluetoothLink::deviceError(QBluetoothSocket::SocketError error)
{
_connectState = false;
qWarning() << "Bluetooth error" << error;
emit communicationError("Bluetooth Link Error", _targetSocket->errorString());
}
bool BluetoothLink::isConnected() const
{
return _connectState;
}
qint64 BluetoothLink::getConnectionSpeed() const
{
return 1000000; // 1 Mbit
}
qint64 BluetoothLink::getCurrentInDataRate() const
{
return 0;
}
qint64 BluetoothLink::getCurrentOutDataRate() const
{
return 0;
}
//--------------------------------------------------------------------------
//-- BluetoothConfiguration
BluetoothConfiguration::BluetoothConfiguration(const QString& name)
: LinkConfiguration(name)
, _deviceDiscover(NULL)
{
}
BluetoothConfiguration::BluetoothConfiguration(BluetoothConfiguration* source)
: LinkConfiguration(source)
, _deviceDiscover(NULL)
{
}
BluetoothConfiguration::~BluetoothConfiguration()
{
if(_deviceDiscover)
{
_deviceDiscover->stop();
delete _deviceDiscover;
}
}
void BluetoothConfiguration::copyFrom(LinkConfiguration *source)
{
LinkConfiguration::copyFrom(source);
BluetoothConfiguration* usource = dynamic_cast<BluetoothConfiguration*>(source);
Q_ASSERT(usource != NULL);
}
void BluetoothConfiguration::saveSettings(QSettings& settings, const QString& root)
{
settings.beginGroup(root);
settings.setValue("deviceName", _device.name);
#ifdef __ios__
settings.setValue("uuid", _device.uuid.toString());
#else
settings.setValue("address",_device.address);
#endif
settings.endGroup();
}
void BluetoothConfiguration::loadSettings(QSettings& settings, const QString& root)
{
settings.beginGroup(root);
_device.name = settings.value("deviceName", _device.name).toString();
#ifdef __ios__
QString suuid = settings.value("uuid", _device.uuid.toString()).toString();
_device.uuid = QUuid(suuid);
#else
_device.address = settings.value("address", _device.address).toString();
settings.endGroup();
}
void BluetoothConfiguration::updateSettings()
{
if(_link) {
BluetoothLink* ulink = dynamic_cast<BluetoothLink*>(_link);
if(ulink) {
ulink->_restartConnection();
}
}
}
void BluetoothConfiguration::stopScan()
{
if(_deviceDiscover)
{
_deviceDiscover->stop();
_deviceDiscover->deleteLater();
_deviceDiscover = NULL;
emit scanningChanged();
}
}
void BluetoothConfiguration::startScan()
{
if(!_deviceDiscover)
{
_deviceDiscover = new QBluetoothDeviceDiscoveryAgent(this);
connect(_deviceDiscover, &QBluetoothDeviceDiscoveryAgent::deviceDiscovered, this, &BluetoothConfiguration::deviceDiscovered);
connect(_deviceDiscover, &QBluetoothDeviceDiscoveryAgent::finished, this, &BluetoothConfiguration::doneScanning);
emit scanningChanged();
}
else
{
_deviceDiscover->stop();
}
_deviceDiscover->setInquiryType(QBluetoothDeviceDiscoveryAgent::GeneralUnlimitedInquiry);
_deviceDiscover->start();
}
void BluetoothConfiguration::deviceDiscovered(QBluetoothDeviceInfo info)
{
//print_device_info(info);
if(!info.name().isEmpty() && info.isValid())
{
BluetoothData data;
data.name = info.name();
#ifdef __ios__
data.uuid = info.deviceUuid();
#else
if(!_deviceList.contains(data))
{
_deviceList += data;
_nameList += data.name;
emit nameListChanged();
return;
}
}
}
void BluetoothConfiguration::doneScanning()
{
if(_deviceDiscover)
{
_deviceDiscover->deleteLater();
_deviceDiscover = NULL;
emit scanningChanged();
}
}
void BluetoothConfiguration::setDevName(const QString &name)
foreach(const BluetoothData& data, _deviceList)
if(data.name == name)
{
_device = data;
emit devNameChanged();
QString BluetoothConfiguration::address()
{
#ifdef __ios__
return QString("");
#else
return _device.address;
#endif
}