ButtonService.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 __BLE_BUTTON_SERVICE_H__
00018 #define __BLE_BUTTON_SERVICE_H__
00019 
00020 class ButtonService {
00021 public:
00022     const static uint16_t BUTTON_SERVICE_UUID              = {0x03, 0xB8, 0x0E, 0x5A, 0xED, 0xE8, 0x4B, 0x33, 0xA7, 0x51, 0x6C, 0xE3, 0x4E, 0xC4, 0xC7, 0};
00023     const static uint16_t BUTTON_STATE_CHARACTERISTIC_UUID = {0x77, 0x72, 0xE5, 0xDB, 0x38, 0x68, 0x41, 0x12, 0xA1, 0xA9, 0xF2, 0x66, 0x9D, 0x10, 0x6B, 0xF3};
00024 
00025     ButtonService(BLE &_ble, bool buttonPressedInitial) :
00026         ble(_ble), buttonState(BUTTON_STATE_CHARACTERISTIC_UUID, &buttonPressedInitial, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY)
00027     {
00028         GattCharacteristic *charTable[] = {&buttonState};
00029         GattService         buttonService(ButtonService::BUTTON_SERVICE_UUID, charTable, sizeof(charTable) / sizeof(GattCharacteristic *));
00030         ble.gattServer().addService(buttonService);
00031     }
00032 
00033     void updateButtonState(bool newState) {
00034         ble.gattServer().write(buttonState.getValueHandle(), (uint8_t *)&newState, sizeof(bool));
00035     }
00036 
00037 private:
00038     BLE                              &ble;
00039     ReadOnlyGattCharacteristic<bool>  buttonState;
00040 };
00041 
00042 #endif /* #ifndef __BLE_BUTTON_SERVICE_H__ */