Diff: CurrentTimeService.h

Revision:

0:f71931ae3db1

diff -r 000000000000 -r f71931ae3db1 CurrentTimeService.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/CurrentTimeService.h	Fri Jul 10 21:28:56 2015 +0000
@@ -0,0 +1,117 @@
+/*******************************************************************************
+ * Copyright (C) 2015 Maxim Integrated Products, Inc., All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
+ * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Except as contained in this notice, the name of Maxim Integrated
+ * Products, Inc. shall not be used except as stated in the Maxim Integrated
+ * Products, Inc. Branding Policy.
+ *
+ * The mere transfer of this software does not imply any licenses
+ * of trade secrets, proprietary technology, copyrights, patents,
+ * trademarks, maskwork rights, or any other form of intellectual
+ * property whatsoever. Maxim Integrated Products, Inc. retains all
+ * ownership rights.
+ *******************************************************************************
+ */
+ 
+#ifndef __BLE_CURRENTTIMESERVICE_H__
+#define __BLE_CURRENTTIMESERVICE_H__
+
+#include <time.h>
+#include "Characteristic.h"
+#include "CurrentTimeChar.h"
+#include "ReferenceTimeInfoChar.h"
+#include "LocalTimeInfoChar.h"
+
+/**
+ * @class   CurrentTimeService
+ * @brief   BLE Current Time service.
+ * @details Standard service for communicating time information.
+ */
+class CurrentTimeService
+{
+public:
+
+    /**
+     * @brief   CurrentTimeSerivce constructor.
+     * @param   ble Reference to BLE device.
+     */
+    CurrentTimeService(BLEDevice &_ble) :
+        ble(_ble),
+        currentTime(),
+        localTimeInfo(),
+        referenceTimeInfo()
+    {
+
+        GattCharacteristic *currentTimeChars[] = {currentTime.getChar(), localTimeInfo.getChar(),
+            referenceTimeInfo.getChar()};
+
+        GattService currentTimeService(GattService::UUID_CURRENT_TIME_SERVICE, currentTimeChars, 
+            sizeof(currentTimeChars) / sizeof(GattCharacteristic *));
+
+        ble.gattServer().addService(currentTimeService);
+        ble.gattServer().onDataWritten(this, &CurrentTimeService::onDataWritten);
+        ble.gattServer().onDataRead(this, &CurrentTimeService::onDataRead);
+    }
+
+    // Update the value in the current time characteristic from RTC
+    void updateCurrentTimeValue()
+    {
+        currentTime.update();
+        ble.gattServer().write(currentTime.getChar()->getValueAttribute().getHandle(),
+                               currentTime.getBytes(), currentTime.getNumBytes());
+    }
+
+private:
+
+    void onDataWritten(const GattWriteCallbackParams *params)
+    {
+
+        // Check to see which value is being written
+        if (params->handle == currentTime.getChar()->getValueAttribute().
+            getHandle()) {
+
+            // Update RTC from CurrentTimeChar
+            currentTime.update_rtc();
+
+            // Reset the time since update
+            referenceTimeInfo.resetUpdateTime();
+        }
+    }
+
+    void onDataRead(const GattReadCallbackParams *eventDataP)
+    {
+        if (eventDataP->handle == currentTime.getChar()->getValueAttribute().getHandle()) {
+            // Update the characteristic value with the rtc
+            currentTime.update();
+
+        } else if (eventDataP->handle == referenceTimeInfo.getChar()->getValueAttribute().getHandle()) {
+            // Update time since update
+            referenceTimeInfo.updateUpdateTime();
+        }
+    }
+
+    BLEDevice               &ble;
+    CurrentTimeChar         currentTime;
+    LocalTimeInfoChar       localTimeInfo;
+    ReferenceTimeInfoChar   referenceTimeInfo;
+};
+
+#endif /* #ifndef __BLE_CURRENTTIMESERVICE_H__*/