Add skeleton for Bluetooth custom serial implementation on Windows platforms

Add a skeleton which will be used to develop the Bluetooth custom
serial implementation for Windows platforms.

Signed-off-by: Claudiu Olteanu <olteanu.claudiu@ymail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

qt-ui/btdeviceselectiondialog.cpp

@@ -8,7 +8,6 @@
 
 BtDeviceSelectionDialog::BtDeviceSelectionDialog(QWidget *parent) :
 	QDialog(parent),
-	localDevice(new QBluetoothLocalDevice),
 	ui(new Ui::BtDeviceSelectionDialog)
 {
 	ui->setupUi(this);
@@ -21,9 +20,16 @@ BtDeviceSelectionDialog::BtDeviceSelectionDialog(QWidget *parent) :
 	// Disable the save button because there is no device selected
 	ui->save->setEnabled(false);
 
+	// Add event for item selection
 	connect(ui->discoveredDevicesList, SIGNAL(itemClicked(QListWidgetItem*)),
 		this, SLOT(itemClicked(QListWidgetItem*)));
 
+#if defined(Q_OS_WIN)
+	// TODO do the initialization
+#else
+	// Initialize the local Bluetooth device
+	localDevice = new QBluetoothLocalDevice();
+
 	// Populate the list with local bluetooth devices
 	QList<QBluetoothHostInfo> localAvailableDevices = localDevice->allDevices();
 	int availableDevicesSize = localAvailableDevices.size();
@@ -56,15 +62,19 @@ BtDeviceSelectionDialog::BtDeviceSelectionDialog(QWidget *parent) :
 	// Initialize the device discovery agent
 	if (localDevice->isValid())
 		initializeDeviceDiscoveryAgent();
+#endif
 }
 
 BtDeviceSelectionDialog::~BtDeviceSelectionDialog()
 {
 	delete ui;
 
+#if defined(Q_OS_WIN)
+	// Terminate the use of Winsock 2 DLL
+#else
 	// Clean the local device
 	delete localDevice;
-
+#endif
 	// Clean the device discovery agent
 	if (remoteDeviceDiscoveryAgent->isActive())
 		remoteDeviceDiscoveryAgent->stop();
@@ -74,6 +84,9 @@ BtDeviceSelectionDialog::~BtDeviceSelectionDialog()
 
 void BtDeviceSelectionDialog::on_changeDeviceState_clicked()
 {
+#if defined(Q_OS_WIN)
+	// TODO add implementation
+#else
 	if (localDevice->hostMode() == QBluetoothLocalDevice::HostPoweredOff) {
 		ui->dialogStatus->setText("Trying to turn on the local Bluetooth device...");
 		localDevice->powerOn();
@@ -81,6 +94,7 @@ void BtDeviceSelectionDialog::on_changeDeviceState_clicked()
 		ui->dialogStatus->setText("Trying to turn off the local Bluetooth device...");
 		localDevice->setHostMode(QBluetoothLocalDevice::HostPoweredOff);
 	}
+#endif
 }
 
 void BtDeviceSelectionDialog::on_save_clicked()
@@ -136,16 +150,23 @@ void BtDeviceSelectionDialog::remoteDeviceScanFinished()
 
 void BtDeviceSelectionDialog::hostModeStateChanged(QBluetoothLocalDevice::HostMode mode)
 {
+#if defined(Q_OS_WIN)
+	// TODO add implementation
+#else
 	bool on = !(mode == QBluetoothLocalDevice::HostPoweredOff);
 
 	ui->dialogStatus->setText(QString("The local Bluetooth device was turned %1.")
 				  .arg(on? "ON" : "OFF"));
 	ui->deviceState->setChecked(on);
 	ui->scan->setEnabled(on);
+#endif
 }
 
 void BtDeviceSelectionDialog::addRemoteDevice(const QBluetoothDeviceInfo &remoteDeviceInfo)
 {
+#if defined(Q_OS_WIN)
+	// TODO add the remote device
+#else
 	// By default we use the status label and the color for the UNPAIRED state
 	QColor pairingColor = QColor(Qt::red);
 	QString pairingStatusLabel = QString("UNPAIRED");
@@ -168,10 +189,14 @@ void BtDeviceSelectionDialog::addRemoteDevice(const QBluetoothDeviceInfo &remote
 	item->setBackgroundColor(pairingColor);
 
 	ui->discoveredDevicesList->addItem(item);
+#endif
 }
 
 void BtDeviceSelectionDialog::itemClicked(QListWidgetItem *item)
 {
+#if defined(Q_OS_WIN)
+	// TODO enable the save button and log the information about the selected item
+#else
 	QBluetoothDeviceInfo remoteDeviceInfo = item->data(Qt::UserRole).value<QBluetoothDeviceInfo>();
 	QBluetoothLocalDevice::Pairing pairingStatus = localDevice->pairingStatus(remoteDeviceInfo.address());
 
@@ -184,10 +209,14 @@ void BtDeviceSelectionDialog::itemClicked(QListWidgetItem *item)
 					  .arg(remoteDeviceInfo.address().toString()));
 		ui->save->setEnabled(true);
 	}
+#endif
 }
 
 void BtDeviceSelectionDialog::localDeviceChanged(int index)
 {
+#if defined(Q_OS_WIN)
+	// TODO add implementation
+#else
 	QBluetoothAddress localDeviceSelectedAddress = ui->localSelectedDevice->itemData(index, Qt::UserRole).value<QBluetoothAddress>();
 
 	// Delete the old localDevice
@@ -208,10 +237,14 @@ void BtDeviceSelectionDialog::localDeviceChanged(int index)
 	// Initialize the device discovery agent
 	if (localDevice->isValid())
 		initializeDeviceDiscoveryAgent();
+#endif
 }
 
 void BtDeviceSelectionDialog::displayPairingMenu(const QPoint &pos)
 {
+#if defined(Q_OS_WIN)
+	// TODO add implementation
+#else
 	QMenu menu(this);
 	QAction *pairAction = menu.addAction("Pair");
 	QAction *removePairAction = menu.addAction("Remove Pairing");
@@ -238,6 +271,7 @@ void BtDeviceSelectionDialog::displayPairingMenu(const QPoint &pos)
 					  .arg(currentRemoteDeviceInfo.address().toString()));
 		localDevice->requestPairing(currentRemoteDeviceInfo.address(), QBluetoothLocalDevice::Unpaired);
 	}
+#endif
 }
 
 void BtDeviceSelectionDialog::pairingFinished(const QBluetoothAddress &address, QBluetoothLocalDevice::Pairing pairing)
@@ -338,6 +372,9 @@ QString BtDeviceSelectionDialog::getSelectedDeviceName()
 
 void BtDeviceSelectionDialog::updateLocalDeviceInformation()
 {
+#if defined(Q_OS_WIN)
+	// TODO add implementation
+#else
 	// Check if the selected Bluetooth device can be accessed
 	if (!localDevice->isValid()) {
 		QString na = QString("Not available");
@@ -377,10 +414,14 @@ void BtDeviceSelectionDialog::updateLocalDeviceInformation()
 
 	connect(localDevice, SIGNAL(error(QBluetoothLocalDevice::Error)),
 		this, SLOT(error(QBluetoothLocalDevice::Error)));
+#endif
 }
 
 void BtDeviceSelectionDialog::initializeDeviceDiscoveryAgent()
 {
+#if defined(Q_OS_WIN)
+	// TODO initialize the discovery agent
+#else
 	// Intialize the discovery agent
 	remoteDeviceDiscoveryAgent = new QBluetoothDeviceDiscoveryAgent(localDevice->address());
 
@@ -400,4 +441,46 @@ void BtDeviceSelectionDialog::initializeDeviceDiscoveryAgent()
 		this, SLOT(remoteDeviceScanFinished()));
 	connect(remoteDeviceDiscoveryAgent, SIGNAL(error(QBluetoothDeviceDiscoveryAgent::Error)),
 		this, SLOT(deviceDiscoveryError(QBluetoothDeviceDiscoveryAgent::Error)));
+#endif
 }
+
+#if defined(Q_OS_WIN)
+WinBluetoothDeviceDiscoveryAgent::WinBluetoothDeviceDiscoveryAgent(QObject *parent) : QThread(parent)
+{
+	// Initialize the internal flags by their default values
+	running = false;
+	stopped = false;
+	lastError = QBluetoothDeviceDiscoveryAgent::NoError;
+	lastErrorToString = QString("No error");
+}
+
+WinBluetoothDeviceDiscoveryAgent::~WinBluetoothDeviceDiscoveryAgent()
+{
+}
+
+bool WinBluetoothDeviceDiscoveryAgent::isActive() const
+{
+	return running;
+}
+
+QString WinBluetoothDeviceDiscoveryAgent::errorToString() const
+{
+	return lastErrorToString;
+}
+
+QBluetoothDeviceDiscoveryAgent::Error WinBluetoothDeviceDiscoveryAgent::error() const
+{
+	return lastError;
+}
+
+void WinBluetoothDeviceDiscoveryAgent::run()
+{
+	// TODO initialize the resources and start the device discovery
+}
+
+void WinBluetoothDeviceDiscoveryAgent::stop()
+{
+	// Stop the inqury
+	stopped = true;
+}
+#endif

qt-ui/btdeviceselectiondialog.h

@@ -8,7 +8,23 @@
 #include <QtBluetooth/qbluetoothglobal.h>
 #include <QtBluetooth/QBluetoothDeviceDiscoveryAgent>
 
-#if QT_VERSION < 0x050500
+#if defined(Q_OS_WIN)
+	#include <QThread>
+	#include <winsock2.h>
+	#include <ws2bth.h>
+
+	#define SUCCESS				0
+	#define BTH_ADDR_STR_LEN                40
+
+	#undef ERROR				// this is already declared in our headers
+	#undef IGNORE				// this is already declared in our headers
+	#undef DC_VERSION			// this is already declared in libdivecomputer header
+#endif
+
+#if defined(Q_OS_WIN)
+Q_DECLARE_METATYPE(QBluetoothDeviceInfo)
+Q_DECLARE_METATYPE(QBluetoothDeviceDiscoveryAgent::Error)
+#elif QT_VERSION < 0x050500
 Q_DECLARE_METATYPE(QBluetoothDeviceInfo)
 #endif
 
@@ -16,6 +32,30 @@ namespace Ui {
 	class BtDeviceSelectionDialog;
 }
 
+#if defined(Q_OS_WIN)
+class WinBluetoothDeviceDiscoveryAgent : public QThread {
+	Q_OBJECT
+signals:
+	void deviceDiscovered(const QBluetoothDeviceInfo &info);
+	void error(QBluetoothDeviceDiscoveryAgent::Error error);
+
+public:
+	WinBluetoothDeviceDiscoveryAgent(QObject *parent);
+	~WinBluetoothDeviceDiscoveryAgent();
+	bool isActive() const;
+	QString errorToString() const;
+	QBluetoothDeviceDiscoveryAgent::Error error() const;
+	virtual void run();
+	virtual void stop();
+
+private:
+	bool running;
+	bool stopped;
+	QString lastErrorToString;
+	QBluetoothDeviceDiscoveryAgent::Error lastError;
+};
+#endif
+
 class BtDeviceSelectionDialog : public QDialog {
 	Q_OBJECT
 
@@ -42,8 +82,12 @@ private slots:
 
 private:
 	Ui::BtDeviceSelectionDialog *ui;
+#if defined(Q_OS_WIN)
+	WinBluetoothDeviceDiscoveryAgent *remoteDeviceDiscoveryAgent;
+#else
 	QBluetoothLocalDevice *localDevice;
 	QBluetoothDeviceDiscoveryAgent *remoteDeviceDiscoveryAgent;
+#endif
 	QSharedPointer<QBluetoothDeviceInfo> selectedRemoteDeviceInfo;
 
 	void updateLocalDeviceInformation();

qtserialbluetooth.cpp

@@ -10,6 +10,12 @@
 
 #if defined(SSRF_CUSTOM_SERIAL)
 
+#if defined(Q_OS_WIN)
+	#include <winsock2.h>
+	#include <windows.h>
+	#include <ws2bth.h>
+#endif
+
 #include <libdivecomputer/custom_serial.h>
 
 extern "C" {
@@ -19,7 +25,11 @@ typedef struct serial_t {
 	/*
 	 * RFCOMM socket used for Bluetooth Serial communication.
 	 */
+#if defined(Q_OS_WIN)
+	SOCKET socket;
+#else
 	QBluetoothSocket *socket;
+#endif
 	long timeout;
 } serial_t;
 
@@ -40,6 +50,9 @@ static int qt_serial_open(serial_t **out, dc_context_t *context, const char* dev
 	// Default to blocking reads.
 	serial_port->timeout = -1;
 
+#if defined(Q_OS_WIN)
+	// TODO connect the device
+#else
 	// Create a RFCOMM socket
 	serial_port->socket = new QBluetoothSocket(QBluetoothServiceInfo::RfcommProtocol);
 
@@ -118,7 +131,7 @@ static int qt_serial_open(serial_t **out, dc_context_t *context, const char* dev
 			return QBluetoothSocket::UnknownSocketError;
 		}
 	}
-
+#endif
 	*out = serial_port;
 
 	return DC_STATUS_SUCCESS;
@@ -126,19 +139,36 @@ static int qt_serial_open(serial_t **out, dc_context_t *context, const char* dev
 
 static int qt_serial_close(serial_t *device)
 {
-	if (device == NULL || device->socket == NULL)
+	if (device == NULL)
 		return DC_STATUS_SUCCESS;
 
+#if defined(Q_OS_WIN)
+	// TODO do the cleanup
+#else
+	if (device->socket == NULL) {
+		free(device);
+		return DC_STATUS_SUCCESS;
+	}
+
 	device->socket->close();
 
 	delete device->socket;
 	free(device);
+#endif
 
 	return DC_STATUS_SUCCESS;
 }
 
 static int qt_serial_read(serial_t *device, void* data, unsigned int size)
 {
+#if defined(Q_OS_WIN)
+	if (device == NULL)
+		return DC_STATUS_INVALIDARGS;
+
+	// TODO read *size* bytes from the device
+
+	return 0;
+#else
 	if (device == NULL || device->socket == NULL)
 		return DC_STATUS_INVALIDARGS;
 
@@ -167,10 +197,19 @@ static int qt_serial_read(serial_t *device, void* data, unsigned int size)
 	}
 
 	return nbytes;
+#endif
 }
 
 static int qt_serial_write(serial_t *device, const void* data, unsigned int size)
 {
+#if defined(Q_OS_WIN)
+	if (device == NULL)
+		return DC_STATUS_INVALIDARGS;
+
+	// TODO write *size* bytes from data to the device
+
+	return 0;
+#else
 	if (device == NULL || device->socket == NULL)
 		return DC_STATUS_INVALIDARGS;
 
@@ -196,32 +235,54 @@ static int qt_serial_write(serial_t *device, const void* data, unsigned int size
 	}
 
 	return nbytes;
+#endif
 }
 
 static int qt_serial_flush(serial_t *device, int queue)
 {
-	if (device == NULL || device->socket == NULL)
+	if (device == NULL)
 		return DC_STATUS_INVALIDARGS;
-
+#if !defined(Q_OS_WIN)
-	//TODO: add implementation
+	if (device->socket == NULL)
+		return DC_STATUS_INVALIDARGS;
+#endif
+	// TODO: add implementation
 
 	return DC_STATUS_SUCCESS;
 }
 
 static int qt_serial_get_received(serial_t *device)
 {
+#if defined(Q_OS_WIN)
+	if (device == NULL)
+		return DC_STATUS_INVALIDARGS;
+
+	// TODO use WSAIoctl to get the information
+
+	return 0;
+#else
 	if (device == NULL || device->socket == NULL)
 		return DC_STATUS_INVALIDARGS;
 
 	return device->socket->bytesAvailable();
+#endif
 }
 
 static int qt_serial_get_transmitted(serial_t *device)
 {
+#if defined(Q_OS_WIN)
+	if (device == NULL)
+		return DC_STATUS_INVALIDARGS;
+
+	// TODO add implementation
+
+	return 0;
+#else
 	if (device == NULL || device->socket == NULL)
 		return DC_STATUS_INVALIDARGS;
 
 	return device->socket->bytesToWrite();
+#endif
 }
 
 static int qt_serial_set_timeout(serial_t *device, long timeout)
@@ -234,6 +295,7 @@ static int qt_serial_set_timeout(serial_t *device, long timeout)
 	return DC_STATUS_SUCCESS;
 }
 
+
 const dc_serial_operations_t qt_serial_ops = {
 	.open = qt_serial_open,
 	.close = qt_serial_close,