UIDFrame.cpp

00001 /* mbed Microcontroller Library
00002  * Copyright (c) 2006-2015 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 #include "UIDFrame.h"
00018 
00019 UIDFrame::UIDFrame(void) {
00020 }
00021 
00022 void UIDFrame::clearFrame(uint8_t* frame) {
00023     frame[FRAME_LEN_OFFSET] = 0; // Set frame length to zero to clear it
00024 }
00025 
00026 void UIDFrame::setData(uint8_t *rawFrame, int8_t advTxPower, const uint8_t* uidData) {
00027     size_t index = 0;
00028     rawFrame[index++] = UID_HEADER_LEN + UID_LENGTH;            // UID length + overhead of four bytes below
00029     rawFrame[index++] = EDDYSTONE_UUID[0];                      // LSB 16-bit Eddystone UUID (little endian)
00030     rawFrame[index++] = EDDYSTONE_UUID[1];                      // MSB
00031     rawFrame[index++] = FRAME_TYPE_UID;                         // 1B  Type
00032     rawFrame[index++] = advTxPower;                             // 1B  Power @ 0meter
00033 
00034     memcpy(rawFrame + index, uidData, UID_LENGTH);              // UID = 10B NamespaceID + 6B InstanceID
00035 }
00036 
00037 uint8_t* UIDFrame::getData(uint8_t* rawFrame) {
00038     return &(rawFrame[UID_DATA_OFFSET]);
00039 }
00040 
00041 uint8_t  UIDFrame::getDataLength(uint8_t* rawFrame)
00042 {
00043     return rawFrame[FRAME_LEN_OFFSET] - EDDYSTONE_UUID_LEN;
00044 }
00045 
00046 uint8_t* UIDFrame::getAdvFrame(uint8_t* rawFrame)
00047 {
00048     return &(rawFrame[ADV_FRAME_OFFSET]);
00049 }
00050 
00051 uint8_t UIDFrame::getAdvFrameLength(uint8_t* rawFrame)
00052 {
00053     return rawFrame[FRAME_LEN_OFFSET];
00054 }
00055 
00056 uint8_t* UIDFrame::getUid(uint8_t* rawFrame)
00057 {
00058     return &(rawFrame[UID_VALUE_OFFSET]);
00059 }
00060 
00061 uint8_t UIDFrame::getUidLength(uint8_t* rawFrame)
00062 {
00063     return rawFrame[FRAME_LEN_OFFSET] - UID_HEADER_LEN;
00064 }
00065 
00066 void UIDFrame::setAdvTxPower(uint8_t* rawFrame, int8_t advTxPower)
00067 {
00068     rawFrame[UID_TXPOWER_OFFSET] = advTxPower;
00069 }