GattServer.h

00001 /* mbed Microcontroller Library
00002  * Copyright (c) 2006-2013 ARM Limited
00003  *
00004  * Licensed under the Apache License, Version 2.0 (the "License");
00005  * you may not use this file except in compliance with the License.
00006  * You may obtain a copy of the License at
00007  *
00008  *     http://www.apache.org/licenses/LICENSE-2.0
00009  *
00010  * Unless required by applicable law or agreed to in writing, software
00011  * distributed under the License is distributed on an "AS IS" BASIS,
00012  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00013  * See the License for the specific language governing permissions and
00014  * limitations under the License.
00015  */  
00016 
00017 #ifndef __GATT_SERVER_H__
00018 #define __GATT_SERVER_H__
00019 
00020 #include "mbed.h"
00021 #include "blecommon.h"
00022 #include "GattService.h"
00023 #include "GattServerEvents.h"
00024 
00025 /**************************************************************************/
00026 /*!
00027     \brief
00028     The base class used to abstract GATT Server functionality to a specific
00029     radio transceiver, SOC or BLE Stack.
00030 */
00031 /**************************************************************************/
00032 class GattServer
00033 {
00034     private:
00035         GattServerEvents *m_pEventHandler;
00036 
00037     public:
00038         /* These functions must be defined in the sub-class */
00039         virtual ble_error_t addService(GattService &) = 0;
00040         virtual ble_error_t readValue(uint16_t, uint8_t[], uint16_t) = 0;
00041         virtual ble_error_t updateValue(uint16_t, uint8_t[], uint16_t) = 0;
00042 
00043         // ToDo: For updateValue, check the CCCD to see if the value we are
00044         // updating has the notify or indicate bits sent, and if BOTH are set
00045         // be sure to call sd_ble_gatts_hvx() twice with notify then indicate!
00046         // Strange use case, but valid and must be covered!
00047 
00048         /* Event callback handlers */
00049         void setEventHandler(GattServerEvents *pEventHandler) {m_pEventHandler = pEventHandler;}
00050         void handleEvent(GattServerEvents::gattEvent_e type, uint16_t charHandle) {
00051             if (NULL == m_pEventHandler)
00052                   return;
00053             switch(type) {
00054                   case GattServerEvents::GATT_EVENT_DATA_SENT:
00055                         m_pEventHandler->onDataSent(charHandle);
00056                         break;
00057                   case GattServerEvents::GATT_EVENT_DATA_WRITTEN:
00058                         m_pEventHandler->onDataWritten(charHandle);
00059                         break;
00060                   case GattServerEvents::GATT_EVENT_UPDATES_ENABLED:
00061                         m_pEventHandler->onUpdatesEnabled(charHandle);
00062                         break;
00063                   case GattServerEvents::GATT_EVENT_UPDATES_DISABLED:
00064                         m_pEventHandler->onUpdatesDisabled(charHandle);
00065                         break;
00066                   case GattServerEvents::GATT_EVENT_CONFIRMATION_RECEIVED:
00067                         m_pEventHandler->onConfirmationReceived(charHandle);
00068                         break;
00069             }
00070         }
00071 
00072         uint8_t serviceCount;
00073         uint8_t characteristicCount;
00074 };
00075 
00076 #endif