ENEL400 / L2Frame

Layer 2 Aloha packet

Dependents:   AlohaTransceiver

AlohaFrame.h@1:b714fce6e23b, 2016-07-14 (annotated)

Committer:
rba90
Date:
Thu Jul 14 04:47:43 2016 +0000
Revision:
1:b714fce6e23b
Parent:
0:bd0c4fdc6833
Child:
2:849128cfddb8
Fix a bug where negative offset is given

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rba90 0:bd0c4fdc6833 1 #ifndef ALOHAFRAME_H_
rba90 0:bd0c4fdc6833 2 #define ALOHAFRAME_H_
rba90 0:bd0c4fdc6833 3
rba90 0:bd0c4fdc6833 4 #include <stdint.h>
rba90 0:bd0c4fdc6833 5
rba90 0:bd0c4fdc6833 6 #define MAX_FRAME_SZ 20
rba90 0:bd0c4fdc6833 7 #define MAX_PAYLOAD_SZ 16
rba90 0:bd0c4fdc6833 8
rba90 1:b714fce6e23b 9 #define ALOHA_MAX_TYPE 16
rba90 1:b714fce6e23b 10
rba90 0:bd0c4fdc6833 11 class AlohaFrame
rba90 0:bd0c4fdc6833 12 {
rba90 0:bd0c4fdc6833 13 private:
rba90 0:bd0c4fdc6833 14 uint8_t _buffer[MAX_FRAME_SZ];
rba90 0:bd0c4fdc6833 15
rba90 0:bd0c4fdc6833 16 bool _isVerified;
rba90 1:b714fce6e23b 17
rba90 1:b714fce6e23b 18 public:
rba90 1:b714fce6e23b 19 typedef enum
rba90 1:b714fce6e23b 20 {
rba90 1:b714fce6e23b 21 Aloha_Join_Request = 0x0,
rba90 1:b714fce6e23b 22 Aloha_Join_Accepted,
rba90 1:b714fce6e23b 23 Aloha_Join_Denied,
rba90 1:b714fce6e23b 24 Aloha_Authentication,
rba90 1:b714fce6e23b 25 Aloha_Deauthentication,
rba90 1:b714fce6e23b 26 Aloha_RTS,
rba90 1:b714fce6e23b 27 Aloha_CTS,
rba90 1:b714fce6e23b 28 Aloha_Data,
rba90 1:b714fce6e23b 29 Aloha_ACK,
rba90 1:b714fce6e23b 30 Aloha_NACK,
rba90 1:b714fce6e23b 31 } AlohaType_t;
rba90 0:bd0c4fdc6833 32
rba90 0:bd0c4fdc6833 33 public:
rba90 0:bd0c4fdc6833 34 AlohaFrame();
rba90 0:bd0c4fdc6833 35 AlohaFrame(uint8_t *data, uint8_t sz=MAX_PAYLOAD_SZ);
rba90 0:bd0c4fdc6833 36 ~AlohaFrame();
rba90 0:bd0c4fdc6833 37
rba90 0:bd0c4fdc6833 38 public:
rba90 0:bd0c4fdc6833 39 void generateCrc();
rba90 0:bd0c4fdc6833 40
rba90 0:bd0c4fdc6833 41 bool verify();
rba90 0:bd0c4fdc6833 42
rba90 0:bd0c4fdc6833 43 uint8_t serialize(uint8_t *buffer);
rba90 0:bd0c4fdc6833 44
rba90 0:bd0c4fdc6833 45 public:
rba90 0:bd0c4fdc6833 46 void setType(uint8_t type);
rba90 0:bd0c4fdc6833 47 void setPayloadLength(uint8_t length);
rba90 0:bd0c4fdc6833 48 void setSourceAddress(uint8_t sa);
rba90 0:bd0c4fdc6833 49 void setDestinationAddress(uint8_t da);
rba90 0:bd0c4fdc6833 50 void setFullMessageFlag(uint8_t fmf);
rba90 0:bd0c4fdc6833 51 void setSequenceID(uint8_t seqid);
rba90 0:bd0c4fdc6833 52 void setPayload(uint8_t payload, uint8_t idx);
rba90 0:bd0c4fdc6833 53
rba90 0:bd0c4fdc6833 54 uint8_t getType();
rba90 0:bd0c4fdc6833 55 uint8_t getPayloadLength();
rba90 0:bd0c4fdc6833 56 uint8_t getSourceAddress();
rba90 0:bd0c4fdc6833 57 uint8_t getDestinationAddress();
rba90 0:bd0c4fdc6833 58 uint8_t getFullMessageFlag();
rba90 0:bd0c4fdc6833 59 uint8_t getSequenceID();
rba90 0:bd0c4fdc6833 60 uint8_t getPayload(uint8_t idx);
rba90 0:bd0c4fdc6833 61 uint8_t getCrc();
rba90 0:bd0c4fdc6833 62
rba90 0:bd0c4fdc6833 63 #ifdef _DEBUG
rba90 0:bd0c4fdc6833 64 public:
rba90 0:bd0c4fdc6833 65 void unit_test();
rba90 0:bd0c4fdc6833 66 #endif
rba90 0:bd0c4fdc6833 67 };
rba90 0:bd0c4fdc6833 68
rba90 0:bd0c4fdc6833 69 #endif