BLEProtocol.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_PROTOCOL_H__
00018 #define __BLE_PROTOCOL_H__
00019 
00020 #include <stddef.h>
00021 #include <stdint.h>
00022 #include <algorithm>
00023 
00024 /**
00025  * A common namespace for types and constants used everywhere in BLE API.
00026  */
00027 namespace BLEProtocol {
00028     /**
00029      * A simple container for the enumeration of address-types for Protocol addresses.
00030      *
00031      * Adding a struct to encapsulate the contained enumeration prevents
00032      * polluting the BLEProtocol namespace with the enumerated values. It also
00033      * allows type-aliases for the enumeration while retaining the enumerated
00034      * values. i.e. doing:
00035      *       typedef AddressType AliasedType;
00036      *
00037      * would allow the use of AliasedType::PUBLIC in code.
00038      */
00039     struct AddressType {
00040         /** Address-types for Protocol addresses. */
00041         enum Type {
00042             PUBLIC = 0,
00043             RANDOM_STATIC,
00044             RANDOM_PRIVATE_RESOLVABLE,
00045             RANDOM_PRIVATE_NON_RESOLVABLE
00046         };
00047     };
00048     typedef AddressType::Type AddressType_t;  /**< Alias for AddressType::Type */
00049 
00050     static const size_t ADDR_LEN = 6;         /**< Length (in octets) of the BLE MAC address. */
00051     typedef uint8_t AddressBytes_t[ADDR_LEN]; /**< 48-bit address, in LSB format. */
00052 
00053     /**
00054      * BLE address. It contains an address-type (AddressType_t) and bytes (AddressBytes_t).
00055      */
00056     struct Address_t {
00057         AddressType_t  type;    /**< The type of the BLE address. */
00058         AddressBytes_t address; /**< The BLE address. */
00059 
00060         /**
00061          * Construct an Address_t object with the supplied type and address.
00062          *
00063          * @param[in] typeIn
00064          *              The BLE address type.
00065          * @param[in] addressIn
00066          *              The BLE address.
00067          */
00068         Address_t(AddressType_t typeIn, const AddressBytes_t& addressIn) : type(typeIn) {
00069             std::copy(addressIn, addressIn + ADDR_LEN, address);
00070         }
00071 
00072         /**
00073          * Empty constructor.
00074          */
00075         Address_t() : type(), address() {
00076         }
00077     };
00078 };
00079 
00080 #endif /* __BLE_PROTOCOL_H__ */