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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc
** All rights reserved.
** For any questions to Digia, please use the contact form at
** http://www.qt.io
**
** This file is part of Qt Enterprise Embedded.
**
** Licensees holding valid Qt Enterprise licenses may use this file in
** accordance with the Qt Enterprise License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.
**
** If you have questions regarding the use of this file, please use
** the contact form at http://www.qt.io
**
****************************************************************************/
#include "qwifidevice.h"
#include <QtCore/QByteArray>
#include <QtCore/QDir>
#ifdef Q_OS_ANDROID_NO_SDK
#include <hardware_legacy/wifi.h>
#include <cutils/properties.h>
#endif
QT_BEGIN_NAMESPACE
/*!
\class QWifiDevice
\inmodule B2Qt.Wifi.Cpp
\ingroup wifi-cppclasses
\brief Represents a physical device.
Use this class to query if a device is Wifi capable, before attempting
to use the functionality of QWifiManager.
\code
QWifiManager *m_wifiManager = 0;
if (QWifiDevice::wifiSupported())
m_wifiManager = QWifiManager::instance();
if (m_wifiManager) {
m_wifiManager->start();
// and other wifi related code
}
\endcode
*/
QWifiDevice::QWifiDevice()
{
}
QWifiDevice::~QWifiDevice()
{
}
/*!
Returns \a true if a device is Wifi capable - Wifi driver and firmware has been
successfully loaded by the system, otherwise returns \a false.
*/
bool QWifiDevice::wifiSupported()
{
#ifdef Q_OS_ANDROID_NO_SDK
const char *fwpath = 0;
// reload wifi firmware
fwpath = (char *)wifi_get_fw_path(WIFI_GET_FW_PATH_STA);
if (!fwpath) {
qCWarning(B2QT_WIFI) << "failed to get firmware path";
return false;
}
if (wifi_change_fw_path((const char *)fwpath)) {
qCWarning(B2QT_WIFI) << "failed to change firmware path";
return false;
}
#endif
QByteArray ifc = wifiInterfaceName();
bool hasInterface = QDir().exists(QString::fromLatin1("/sys/class/net/" + ifc));
if (!hasInterface)
qCWarning(B2QT_WIFI) << "could not find wifi interface in \"/sys/class/net/\", "
"looking for interface named: " << ifc;
#ifdef Q_OS_ANDROID_NO_SDK
if (hasInterface && wifi_load_driver() == 0) {
return true;
} else {
qCWarning(B2QT_WIFI) << "wifi driver is not available";
return false;
}
#else
return hasInterface;
#endif
}
/*!
Returns Wifi interface name.
\note On Android, the Wifi interface name is read from "wifi.interface"
system property. On Linux, it is read from the \c B2QT_WIFI_INTERFACE
environment variable if it is set, otherwise, the default interface
name ("\e{wlan0}") is used.
\sa setWifiInterfaceName()
*/
QByteArray QWifiDevice::wifiInterfaceName()
{
QByteArray ifc;
#ifdef Q_OS_ANDROID_NO_SDK
char interface[PROPERTY_VALUE_MAX];
property_get("wifi.interface", interface, NULL);
ifc = interface[0] == '\0' ? "wlan0" : interface;
#else
ifc = qEnvironmentVariableIsSet("B2QT_WIFI_INTERFACE")
? qgetenv("B2QT_WIFI_INTERFACE") : "wlan0";
#endif
return ifc;
}
/*!
A conveniece method to set the Wifi interface name.
\sa wifiInterfaceName()
*/
void QWifiDevice::setWifiInterfaceName(const QByteArray &name)
{
#ifdef Q_OS_ANDROID_NO_SDK
property_set("wifi.interface", name);
#else
qputenv("B2QT_WIFI_INTERFACE", name);
#endif
}
QT_END_NAMESPACE
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