BTLE demo for MAXWSNENV.
Dependencies: BLE_API BMP180 Si7020 mbed MaximBLE
Diff: CurrentTimeService.h
- Revision:
- 0:f71931ae3db1
--- /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__*/