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#ifndef EventFilter_Phase2TrackerRawToDigi_Phase2TrackerFEDDAQTrailer_H // {
#define EventFilter_Phase2TrackerRawToDigi_Phase2TrackerFEDDAQTrailer_H
#include <cstring>
#include "EventFilter/Phase2TrackerRawToDigi/interface/utils.h"
namespace Phase2Tracker {
//
// Constants
//
//enum values are values which appear in buffer. DO NOT CHANGE!
//see http://cmsdoc.cern.ch/cms/TRIDAS/horizontal/RUWG/DAQ_IF_guide/DAQ_IF_guide.html
enum FEDTTSBits {
TTS_DISCONNECTED0 = 0x0,
TTS_WARN_OVERFLOW = 0x1,
TTS_OUT_OF_SYNC = 0x2,
TTS_BUSY = 0x4,
TTS_READY = 0x8,
TTS_ERROR = 0x12,
TTS_DISCONNECTED1 = 0xF,
TTS_INVALID = INVALID
};
//to make enums printable
inline std::ostream& operator<<(std::ostream& os, const FEDTTSBits& value);
//see http://cmsdoc.cern.ch/cms/TRIDAS/horizontal/RUWG/DAQ_IF_guide/DAQ_IF_guide.html
class FEDDAQTrailer {
public:
FEDDAQTrailer() {}
explicit FEDDAQTrailer(const uint8_t* trailer);
// getters
//0xA in first fragment
uint8_t eoeNibble() const;
uint32_t eventLengthIn64BitWords() const;
uint32_t eventLengthInBytes() const;
uint16_t crc() const;
//set to 1 if FRL detects a transmission error over S-link
bool cBit() const;
bool slinkTransmissionError() const { return cBit(); }
//set to 1 if the FED ID is not the one expected by the FRL
bool fBit() const;
bool badSourceID() const { return fBit(); }
uint8_t eventStatusNibble() const;
uint8_t ttsNibble() const;
FEDTTSBits ttsBits() const;
//0 if the current trailer is the last, 1 otherwise
bool tBit() const;
bool lastTrailer() const { return !tBit(); }
//set to 1 if the S-link sender card detects a CRC error
// (the CRC it computes is put in the CRC field)
bool rBit() const;
bool slinkCRCError() const { return rBit(); }
void print(std::ostream& os) const;
//used by digi2Raw
const uint8_t* data() const;
// setters
void setEventLengthIn64BitWords(const uint32_t eventLengthIn64BitWords);
void setCRC(const uint16_t crc);
void setSLinkTransmissionErrorBit(const bool bitSet);
void setBadSourceIDBit(const bool bitSet);
void setSLinkCRCErrorBit(const bool bitSet);
void setEventStatusNibble(const uint8_t eventStatusNibble);
void setTTSBits(const FEDTTSBits ttsBits);
FEDDAQTrailer(const uint32_t eventLengthIn64BitWords,
const uint16_t crc = 0,
const FEDTTSBits ttsBits = TTS_READY,
const bool slinkTransmissionError = false,
const bool badFEDID = false,
const bool slinkCRCError = false,
const uint8_t eventStatusNibble = 0);
private:
uint8_t trailer_[8];
}; // end of FEDDAQTrailer class
//FEDDAQTrailer methods definintions {
//FEDDAQTrailer
inline FEDDAQTrailer::FEDDAQTrailer(const uint8_t* trailer) { memcpy(trailer_, trailer, 8); }
inline uint8_t FEDDAQTrailer::eoeNibble() const { return ((trailer_[7] & 0xF0) >> 4); }
inline uint32_t FEDDAQTrailer::eventLengthIn64BitWords() const {
return (trailer_[4] | (trailer_[5] << 8) | (trailer_[6] << 16));
}
inline uint32_t FEDDAQTrailer::eventLengthInBytes() const { return eventLengthIn64BitWords() * 8; }
inline uint16_t FEDDAQTrailer::crc() const { return (trailer_[2] | (trailer_[3] << 8)); }
inline bool FEDDAQTrailer::cBit() const { return (trailer_[1] & 0x80); }
inline bool FEDDAQTrailer::fBit() const { return (trailer_[1] & 0x40); }
inline uint8_t FEDDAQTrailer::eventStatusNibble() const { return (trailer_[1] & 0x0F); }
inline uint8_t FEDDAQTrailer::ttsNibble() const { return ((trailer_[0] & 0xF0) >> 4); }
inline bool FEDDAQTrailer::tBit() const { return (trailer_[0] & 0x08); }
inline bool FEDDAQTrailer::rBit() const { return (trailer_[0] & 0x04); }
inline void FEDDAQTrailer::print(std::ostream& os) const { printHex(trailer_, 8, os); }
inline const uint8_t* FEDDAQTrailer::data() const { return trailer_; }
// End of method definitions }
} // namespace Phase2Tracker
#endif // } end def EventFilter_Phase2TrackerRawToDigi_Phase2TrackerFEDDAQHeader_H
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