Sarah Marsh / Mbed OS EddystoneBeacon

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source/UIDFrame.cpp@0:1c7da5f83647, 2016-11-29 (annotated)

Committer:
sarahmarshy
Date:
Tue Nov 29 06:29:10 2016 +0000
Revision:
0:1c7da5f83647
Initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
sarahmarshy 0:1c7da5f83647 1 /*
sarahmarshy 0:1c7da5f83647 2 * Copyright (c) 2006-2016 Google Inc, All Rights Reserved
sarahmarshy 0:1c7da5f83647 3 *
sarahmarshy 0:1c7da5f83647 4 * Licensed under the Apache License, Version 2.0 (the "License");
sarahmarshy 0:1c7da5f83647 5 * you may not use this file except in compliance with the License.
sarahmarshy 0:1c7da5f83647 6 * You may obtain a copy of the License at
sarahmarshy 0:1c7da5f83647 7 *
sarahmarshy 0:1c7da5f83647 8 * http://www.apache.org/licenses/LICENSE-2.0
sarahmarshy 0:1c7da5f83647 9 *
sarahmarshy 0:1c7da5f83647 10 * Unless required by applicable law or agreed to in writing, software
sarahmarshy 0:1c7da5f83647 11 * distributed under the License is distributed on an "AS IS" BASIS,
sarahmarshy 0:1c7da5f83647 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
sarahmarshy 0:1c7da5f83647 13 * See the License for the specific language governing permissions and
sarahmarshy 0:1c7da5f83647 14 * limitations under the License.
sarahmarshy 0:1c7da5f83647 15 */
sarahmarshy 0:1c7da5f83647 16
sarahmarshy 0:1c7da5f83647 17 #include "UIDFrame.h"
sarahmarshy 0:1c7da5f83647 18
sarahmarshy 0:1c7da5f83647 19 UIDFrame::UIDFrame(void) {
sarahmarshy 0:1c7da5f83647 20 }
sarahmarshy 0:1c7da5f83647 21
sarahmarshy 0:1c7da5f83647 22 void UIDFrame::clearFrame(uint8_t* frame) {
sarahmarshy 0:1c7da5f83647 23 frame[FRAME_LEN_OFFSET] = 0; // Set frame length to zero to clear it
sarahmarshy 0:1c7da5f83647 24 }
sarahmarshy 0:1c7da5f83647 25
sarahmarshy 0:1c7da5f83647 26 void UIDFrame::setData(uint8_t *rawFrame, int8_t advTxPower, const uint8_t* uidData) {
sarahmarshy 0:1c7da5f83647 27 size_t index = 0;
sarahmarshy 0:1c7da5f83647 28 rawFrame[index++] = UID_HEADER_LEN + UID_LENGTH; // UID length + overhead of four bytes below
sarahmarshy 0:1c7da5f83647 29 rawFrame[index++] = EDDYSTONE_UUID[0]; // LSB 16-bit Eddystone UUID (little endian)
sarahmarshy 0:1c7da5f83647 30 rawFrame[index++] = EDDYSTONE_UUID[1]; // MSB
sarahmarshy 0:1c7da5f83647 31 rawFrame[index++] = FRAME_TYPE_UID; // 1B Type
sarahmarshy 0:1c7da5f83647 32 rawFrame[index++] = advTxPower; // 1B Power @ 0meter
sarahmarshy 0:1c7da5f83647 33
sarahmarshy 0:1c7da5f83647 34 memcpy(rawFrame + index, uidData, UID_LENGTH); // UID = 10B NamespaceID + 6B InstanceID
sarahmarshy 0:1c7da5f83647 35 }
sarahmarshy 0:1c7da5f83647 36
sarahmarshy 0:1c7da5f83647 37 uint8_t* UIDFrame::getData(uint8_t* rawFrame) {
sarahmarshy 0:1c7da5f83647 38 return &(rawFrame[UID_DATA_OFFSET]);
sarahmarshy 0:1c7da5f83647 39 }
sarahmarshy 0:1c7da5f83647 40
sarahmarshy 0:1c7da5f83647 41 uint8_t UIDFrame::getDataLength(uint8_t* rawFrame)
sarahmarshy 0:1c7da5f83647 42 {
sarahmarshy 0:1c7da5f83647 43 return rawFrame[FRAME_LEN_OFFSET] - EDDYSTONE_UUID_LEN;
sarahmarshy 0:1c7da5f83647 44 }
sarahmarshy 0:1c7da5f83647 45
sarahmarshy 0:1c7da5f83647 46 uint8_t* UIDFrame::getAdvFrame(uint8_t* rawFrame)
sarahmarshy 0:1c7da5f83647 47 {
sarahmarshy 0:1c7da5f83647 48 return &(rawFrame[ADV_FRAME_OFFSET]);
sarahmarshy 0:1c7da5f83647 49 }
sarahmarshy 0:1c7da5f83647 50
sarahmarshy 0:1c7da5f83647 51 uint8_t UIDFrame::getAdvFrameLength(uint8_t* rawFrame)
sarahmarshy 0:1c7da5f83647 52 {
sarahmarshy 0:1c7da5f83647 53 return rawFrame[FRAME_LEN_OFFSET];
sarahmarshy 0:1c7da5f83647 54 }
sarahmarshy 0:1c7da5f83647 55
sarahmarshy 0:1c7da5f83647 56 uint8_t* UIDFrame::getUid(uint8_t* rawFrame)
sarahmarshy 0:1c7da5f83647 57 {
sarahmarshy 0:1c7da5f83647 58 return &(rawFrame[UID_VALUE_OFFSET]);
sarahmarshy 0:1c7da5f83647 59 }
sarahmarshy 0:1c7da5f83647 60
sarahmarshy 0:1c7da5f83647 61 uint8_t UIDFrame::getUidLength(uint8_t* rawFrame)
sarahmarshy 0:1c7da5f83647 62 {
sarahmarshy 0:1c7da5f83647 63 return rawFrame[FRAME_LEN_OFFSET] - UID_HEADER_LEN;
sarahmarshy 0:1c7da5f83647 64 }
sarahmarshy 0:1c7da5f83647 65
sarahmarshy 0:1c7da5f83647 66 void UIDFrame::setAdvTxPower(uint8_t* rawFrame, int8_t advTxPower)
sarahmarshy 0:1c7da5f83647 67 {
sarahmarshy 0:1c7da5f83647 68 rawFrame[UID_TXPOWER_OFFSET] = advTxPower;
sarahmarshy 0:1c7da5f83647 69 }