plugins/sensors/maemo6/maemo6sensorbase.cpp
changeset 0 876b1a06bc25
child 5 603d3f8b6302
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/plugins/sensors/maemo6/maemo6sensorbase.cpp	Wed Aug 25 15:49:42 2010 +0300
@@ -0,0 +1,93 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** 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, 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.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "maemo6sensorbase.h"
+
+
+SensorManagerInterface* maemo6sensorbase::m_remoteSensorManager = 0;
+
+
+const float maemo6sensorbase::GRAVITY_EARTH = 9.80665;
+const float maemo6sensorbase::GRAVITY_EARTH_THOUSANDTH = 0.00980665;
+
+maemo6sensorbase::maemo6sensorbase(QSensor *sensor)
+    : QSensorBackend(sensor), m_sensorInterface(0)
+{
+    if (!m_remoteSensorManager)
+        m_remoteSensorManager = &SensorManagerInterface::instance();
+}
+
+maemo6sensorbase::~maemo6sensorbase()
+{
+    if (m_sensorInterface) {
+        stop();
+        QObject::disconnect(m_sensorInterface);
+        delete m_sensorInterface, m_sensorInterface = 0;
+    }
+}
+
+void maemo6sensorbase::start()
+{
+
+    if (m_sensorInterface) {
+        int dataRate = sensor()->dataRate();
+        if (dataRate > 0) {
+            int interval = 1000 / dataRate;
+            // for testing maximum speed
+            //interval = 1;
+            //dataRate = 1000;
+            qDebug() << "Setting data rate" << dataRate << "Hz (interval" << interval << "ms) for" << m_sensorInterface->id();
+            m_sensorInterface->setInterval(interval);
+        } else {
+            qDebug() << "Data rate in don't care mode (interval" << m_sensorInterface->interval() << "ms) for" << m_sensorInterface->id();
+        }
+        int returnCode = m_sensorInterface->start().error().type();
+        if (returnCode==0) return;
+        qWarning()<<"m_sensorInterface did not start, error code:"<<returnCode;
+    }
+    sensorStopped();
+}
+
+void maemo6sensorbase::stop()
+{
+    if (m_sensorInterface)
+        m_sensorInterface->stop();
+}