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/****************************************************************************
*
* This is a part of the PPS offline software.
* Authors:
* Seyed Mohsen Etesami (setesami@cern.ch)
* Laurent Forthomme
* Nicola Minafra
*
****************************************************************************/
#ifndef EventFilter_CTPPSRawToDigi_DiamondVFATFrame
#define EventFilter_CTPPSRawToDigi_DiamondVFATFrame
#include "EventFilter/CTPPSRawToDigi/interface/VFATFrame.h"
#include <cstdint>
/**
* Utilitary namespace to retrieve timing/status information from diamond VFAT frame
**/
namespace pps::diamond::vfat {
/// Account for MSB/LSB "HW feature" reversal in HPTDC interpolation bits
inline uint32_t correctTime(const uint32_t& time) { return (time & 0xFFE7FFFF) << 2 | (time & 0x00180000) >> 19; }
/// get timing information for single leading edge
inline uint32_t getLeadingEdgeTime(const VFATFrame& frame) {
uint32_t time = ((frame.getData()[7] & 0x1f) << 16) + frame.getData()[8];
return correctTime(time);
}
/// get timing information for single trailing edge
inline uint32_t getTrailingEdgeTime(const VFATFrame& frame) {
uint32_t time = ((frame.getData()[5] & 0x1f) << 16) + frame.getData()[6];
return correctTime(time);
}
/// retrieve the threshold voltage for this channel
inline uint32_t getThresholdVoltage(const VFATFrame& frame) {
return ((frame.getData()[3] & 0x7ff) << 16) + frame.getData()[4];
}
/// flag stating whether the HPTDC channel encountered multiple hits
inline VFATFrame::word getMultihit(const VFATFrame& frame) { return frame.getData()[2] & 0x01; }
/// retrieve the list of error/status flags for the HPTDC when the frame was recorded
inline VFATFrame::word getHptdcErrorFlag(const VFATFrame& frame) { return frame.getData()[1] & 0xFFFF; }
} // namespace pps::diamond::vfat
#endif
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