HcalTTPUnpacker Class Reference

#include <HcalTTPUnpacker.h>

Public Member Functions
bool	unpack (const HcalHTRData &data, HcalTTPDigi &digi)

Detailed Description

Author

J. Mans - Minnesota

Definition at line 11 of file HcalTTPUnpacker.h.

Member Function Documentation

unpack()

bool HcalTTPUnpacker::unpack	(	const HcalHTRData &	data,
		HcalTTPDigi &	digi
	)

Definition at line 3 of file HcalTTPUnpacker.cc.

References gammaJetAnalysis_CHSJECs_cff::algorithm, HcalHTRData::dataPointers(), amcDumpToRaw_cfi::fwVersion, HcalHTRData::getFirmwareFlavor(), HcalHTRData::getFirmwareRevision(), HcalHTRData::getNDD(), HcalHTRData::getNPS(), HcalHTRData::getPipelineLength(), HcalHTRData::getSubmodule(), mps_fire::i, PresampleTask_cfi::nSamples, and HcalTTPDigi::setSample().

Referenced by CastorUnpacker::unpack(), ZdcUnpacker::unpack(), and HcalUnpacker::unpackVME().

                                                                             {
  // Get the base information for the TTP Digi
  int theID = theData.getSubmodule();
  int nSamples = theData.getNDD();
  int nPresamples = theData.getNPS();
  int algorithm = theData.getFirmwareFlavor() & 0x1F;
  unsigned int fwVersion = theData.getFirmwareRevision();
  unsigned int lPipe = theData.getPipelineLength();

  if (nSamples > 8)
    nSamples = 8;  // protection in case nSamples is too large

  theDigi = HcalTTPDigi(theID, nSamples, nPresamples, fwVersion, algorithm, lPipe);

  // Get the data pointers
  const unsigned short *daq_first, *daq_last, *tp_first, *tp_last;
  theData.dataPointers(&daq_first, &daq_last, &tp_first, &tp_last);

  // Each TTP data sample is 96 bits: 72 (input) + 20 (algo) + output (4)
  for (int i = 0; i < nSamples; i++) {
    const uint16_t* daq_start = (daq_first + 6 * i);
    if (daq_start > daq_last)
      break;

    const uint16_t* inputContent = daq_start;
    const uint32_t algoDep = (daq_start[4] >> 8) | ((uint32_t(daq_start[5]) & 0xFFF) << 8);
    const uint8_t trigOutput = (daq_start[5] >> 12) & 0xF;

    int relativeSample = i - nPresamples;
    theDigi.setSample(relativeSample, inputContent, algoDep, trigOutput);
  }
  return true;
}