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Communication: EthernetMessage: Switch to TX_WRAP

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Thomas Stoddard
2025-07-17 01:49:31 +00:00
committed by Kyle Schwarz
parent 6d985ca873
commit 10efacf91e
4 changed files with 125 additions and 50 deletions
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include/icsneo/communication/packet/ethernetpacket.h
+39 -7
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@@ -7,6 +7,9 @@
#include "icsneo/api/eventmanager.h"
#include <cstdint>
#include <memory>
#include <iostream>
#include <iomanip>
#include <sstream>
namespace icsneo {
@@ -18,30 +21,59 @@ struct HardwareEthernetPacket {
static std::shared_ptr<EthernetMessage> DecodeToMessage(const std::vector<uint8_t>& bytestream, const device_eventhandler_t& report);
static bool EncodeFromMessage(const EthernetMessage& message, std::vector<uint8_t>& bytestream, const device_eventhandler_t& report);
// Word 0 - Header flags (offset 0)
struct {
icscm_bitfield FCS_AVAIL : 1;
icscm_bitfield RUNT_FRAME : 1;
icscm_bitfield DISABLE_PADDING : 1;
icscm_bitfield ENABLE_PADDING : 1;
icscm_bitfield PREEMPTION_ENABLED : 1;
icscm_bitfield MPACKET_TYPE : 4;
icscm_bitfield MPACKET_FRAG_CNT : 2;
icscm_bitfield : 6;
icscm_bitfield UPDATE_CHECKSUMS : 1;
icscm_bitfield FCS_OVERRIDE : 1;
icscm_bitfield CRC_ERROR : 1;
icscm_bitfield FCS_VERIFIED : 1;
icscm_bitfield DISABLE_TX_RECEIPT : 1;
icscm_bitfield T1S_ETHERNET : 1;
} header;
// Word 1 - Extended ID flags
struct {
icscm_bitfield txlen : 12;
icscm_bitfield TXMSG : 1;
icscm_bitfield : 3;
icscm_bitfield TXAborted : 1;
icscm_bitfield T1S_SYMBOL : 1;
icscm_bitfield T1S_BURST : 1;
} eid;
icscm_bitfield reserved;
unsigned char data[8];
// Word 2 - T1S Status flags
struct {
icscm_bitfield TXCollision : 1;
icscm_bitfield T1SWake : 1;
icscm_bitfield : 14;
} t1s_status;
// Word 3 - T1S Node Information
struct {
icscm_bitfield T1S_BURST_COUNT : 8;
icscm_bitfield T1S_NODE_ID : 8;
uint8_t RESERVED[6];
} t1s_node;
// Words 4-7 - Reserved/Padding
uint16_t stats;
// Words 8-11 - Timestamp (offset 14-22)
struct {
uint64_t TS : 60;
uint64_t : 3; // Reserved for future status bits
uint64_t : 3;
uint64_t IsExtended : 1;
} timestamp;
uint16_t NetworkID;
uint16_t Length;
};
#pragma pack(pop)
@@ -50,4 +82,4 @@ struct HardwareEthernetPacket {
#endif // __cplusplus
#endif
#endif // __ETHERNETPACKET_H__