MdtHptdcReadOut.cxx

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/*
  Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
*/
 
#include "MdtHptdcReadOut.h"
 
MdtHptdcReadOut::MdtHptdcReadOut() :
    m_dataWord(0),
    m_wordHeader(0),
    m_tdcId(0),
    m_ecnt(0),
    m_bcId(0),
    m_wcnt(0),
    m_channel(0),
    m_coarse(0),
    m_fine(0),
    m_width(0),
    m_errflag(0),
    m_leading(false) {}
 
void MdtHptdcReadOut::decodeWord(uint32_t dataWord) {
    //  Zero all the decoded quantities
    setZero();
    m_dataWord = dataWord;
    m_word = dataWord;
    m_wordHeader = (dataWord >> HEADERPOS) & HEADERBITS;
 
    if (is_TSM())  // TDC single measurement
    {
        m_leading = !((bool)getBits(getBitsWord(28, 28)));
        m_tdcId = getBits(getBitsWord(27, 24));
        m_channel = getBits(getBitsWord(23, 19));
        m_coarse = getBits(getBitsWord(18, 5));
        m_fine = getBits(getBitsWord(4, 0));
    } else if (is_TCM())  // TDC combined measurement
    {
        m_tdcId = getBits(getBitsWord(27, 24));
        m_channel = getBits(getBitsWord(23, 19));
        m_width = getBits(getBitsWord(18, 12));
        m_coarse = getBits(getBitsWord(11, 5));
        m_fine = getBits(getBitsWord(4, 0));
    } else if (is_BOT())  // Beginning of TDC
    {
        // One header bit is used for TDC numbers > 15
        m_tdcId = getBits(getBitsWord(28, 24));
        m_ecnt = getBits(getBitsWord(23, 12));
        m_bcId = getBits(getBitsWord(11, 0));
    } else if (is_EOT())  // End of TDC
    {
        m_tdcId = getBits(getBitsWord(27, 24));
        m_ecnt = getBits(getBitsWord(23, 12));
        m_wcnt = getBits(getBitsWord(11, 0));
    } else if (is_TES())  // TDC error status
    {
        m_tdcId = getBits(getBitsWord(27, 24));
        m_errflag = getBits(getBitsWord(14, 0));
    }
}
 
void MdtHptdcReadOut::setZero() {
    m_tdcId = 0;
    m_ecnt = 0;
    m_bcId = 0;
    m_wcnt = 0;
    m_channel = 0;
    m_coarse = 0;
    m_fine = 0;
    m_width = 0;
    m_errflag = 0;
    m_leading = false;
}
 
// Encoding methods
// Beginning of TDC
uint32_t MdtHptdcReadOut::makeBOT(uint16_t tdcId, uint16_t ecnt, uint16_t bcid) {
    uint16_t inputData[4];
    constexpr uint16_t inputPos[4] = {HEADERPOS, 24, 12, 0};
    uint16_t nData = 4;
 
    if (tdcId < 16) {
        inputData[0] = BOTVALUE1;
    } else {
        inputData[0] = BOTVALUE2;
        tdcId -= 16;
    }
 
    inputData[1] = tdcId;
    inputData[2] = ecnt;
    inputData[3] = bcid;
 
    return setBits(nData, inputData, inputPos);
}
 
// End of TDC
uint32_t MdtHptdcReadOut::makeEOT(uint16_t tdcId, uint16_t ecnt, uint16_t wcnt) {
    uint16_t inputData[4] = {EOTVALUE, tdcId, ecnt, wcnt};
    constexpr uint16_t inputPos[4] = {HEADERPOS, 24, 12, 0};
    uint16_t nData = 4;
 
    return setBits(nData, inputData, inputPos);
}
 
// Make a TDC single measurement word
uint32_t MdtHptdcReadOut::makeTSM(uint16_t tdcId, uint16_t channel, bool leading, uint16_t coarse, uint16_t /*fine*/) {
    uint16_t TSMvalue = leading ? TSMVALUE_LEAD : TSMVALUE_TAIL;
 
    uint16_t inputData[4] = {TSMvalue, static_cast<uint16_t>(tdcId & 0xf), static_cast<uint16_t>(channel & 0x1f),
                             static_cast<uint16_t>(coarse & 0x7ffff)};
    constexpr uint16_t inputPos[4] = {HEADERPOS, 24, 19, 0};
    uint16_t nData = 4;
 
    return setBits(nData, inputData, inputPos);
}
 
// Make a TDC combined measurement word
uint32_t MdtHptdcReadOut::makeTCM(uint16_t tdcId, uint16_t channel, uint16_t width, uint16_t coarse, uint16_t /*fine*/) {
    uint16_t inputData[5] = {TCMVALUE, static_cast<uint16_t>(tdcId & 0xf), static_cast<uint16_t>(channel & 0x1f),
                             static_cast<uint16_t>(width & 0x7f), static_cast<uint16_t>(coarse & 0xfff)};
    constexpr uint16_t inputPos[5] = {HEADERPOS, 24, 19, 12, 0};
    uint16_t nData = 5;
 
    return setBits(nData, inputData, inputPos);
}