text: /* mbed Microcontroller Library
  * Copyright (c) 2006-2013 ARM Limited
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *     http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
  /**
    ******************************************************************************
    * @file    BlueNRGGattServer.cpp
    * @author  STMicroelectronics
    * @brief   Header file for BLE_API GattServer Class
    ******************************************************************************
    * @copy
    *
    * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
    * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
    * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
    * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
    * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
    * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
    *
    * <h2><center>&copy; COPYRIGHT 2013 STMicroelectronics</center></h2>
    */
  
  #ifndef __BLUENRG_GATT_SERVER_H__
  #define __BLUENRG_GATT_SERVER_H__
  
  #ifdef YOTTA_CFG_MBED_OS
      #include "mbed-drivers/mbed.h"
  #else
      #include "mbed.h"
  #endif 
  #include "ble/blecommon.h"
  #include "btle.h"
  #include "ble/GattService.h"
  #include "ble/GattServer.h"
  #include <vector>
  #include <map>
  
  #define BLE_TOTAL_CHARACTERISTICS 10
  
  using namespace std;
  
  class BlueNRGGattServer : public GattServer
  {
  public:
      static BlueNRGGattServer &getInstance() {
          static BlueNRGGattServer m_instance;
          return m_instance;
      }
  
      enum HandleEnum_t {
          CHAR_HANDLE = 0,
          CHAR_VALUE_HANDLE,
          CHAR_DESC_HANDLE
      };
  
      /* Functions that must be implemented from GattServer */
      virtual ble_error_t addService(GattService &);
      virtual ble_error_t read(GattAttribute::Handle_t attributeHandle, uint8_t buffer[], uint16_t *lengthP);
      virtual ble_error_t read(Gap::Handle_t connectionHandle, GattAttribute::Handle_t attributeHandle, uint8_t buffer[], uint16_t *lengthP);
      virtual ble_error_t write(GattAttribute::Handle_t, const uint8_t[], uint16_t, bool localOnly = false);
      virtual ble_error_t write(Gap::Handle_t connectionHandle, GattAttribute::Handle_t, const uint8_t[], uint16_t, bool localOnly = false);
      virtual ble_error_t initializeGATTDatabase(void);
  
      virtual bool isOnDataReadAvailable() const {
          return true;
      }
  
      virtual ble_error_t reset(void);
  
      /* BlueNRG Functions */
      void eventCallback(void);
      //void hwCallback(void *pckt);
      ble_error_t Read_Request_CB(uint16_t attributeHandle);
      uint8_t Write_Request_CB(
          uint16_t connection_handle, uint16_t attr_handle,
          uint8_t data_length, const uint8_t* data
      );
      GattCharacteristic* getCharacteristicFromHandle(uint16_t charHandle);
      void HCIDataWrittenEvent(const GattWriteCallbackParams *params);
      void HCIDataReadEvent(const GattReadCallbackParams *params);
      void HCIEvent(GattServerEvents::gattEvent_e type, uint16_t charHandle);
      void HCIDataSentEvent(unsigned count);
  
  private:
  
      // compute the number of attribute record needed by a service
      static uint16_t computeAttributesRecord(GattService& service);
  
  
      static const int MAX_SERVICE_COUNT = 10;
      uint8_t serviceCount;
      uint8_t characteristicCount;
      uint16_t servHandle, charHandle;
  
      std::map<uint16_t, uint16_t> bleCharHandleMap;  // 1st argument is characteristic, 2nd argument is service
      GattCharacteristic *p_characteristics[BLE_TOTAL_CHARACTERISTICS];
      uint16_t bleCharacteristicHandles[BLE_TOTAL_CHARACTERISTICS];
  
      BlueNRGGattServer() {
          serviceCount = 0;
          characteristicCount = 0;
      };
  
      BlueNRGGattServer(BlueNRGGattServer const &);
      void operator=(BlueNRGGattServer const &);
  
      static const int CHAR_DESC_TYPE_16_BIT=0x01;
      static const int CHAR_DESC_TYPE_128_BIT=0x02;
      static const int CHAR_DESC_SECURITY_PERMISSION=0x00;
      static const int CHAR_DESC_ACCESS_PERMISSION=0x03;
      static const int CHAR_ATTRIBUTE_LEN_IS_FIXED=0x00;
  };
  
  #endif