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/****************************************************************************
* Author: Nicola Minafra
* March 2018
****************************************************************************/
#ifndef DataFormats_CTPPSDetId_TotemTimingDetId
#define DataFormats_CTPPSDetId_TotemTimingDetId
#include "DataFormats/CTPPSDetId/interface/CTPPSDetId.h"
#include "FWCore/Utilities/interface/Exception.h"
#include <iosfwd>
#include <iostream>
#include <string>
/**
*\brief Detector ID class for CTPPS Totem Timing detectors.
* Bits [19:31] : Assigend in CTPPSDetId Calss
* Bits [17:18] : 2 bits for UFSD plane 0,1,2,3
* Bits [12:16] : 5 bits for UFSD channel numbers 1,2,3,..16
* Bits [0:11] : unspecified yet
*
* This class is very similar to CTPPSDiamondDetId; however the detector is completely separated, therefore it is useful to keep them separate and independent.
**/
class TotemTimingDetId : public CTPPSDetId {
public:
enum { ID_NOT_SET = 28 };
/// Construct from a raw id
explicit TotemTimingDetId(uint32_t id);
TotemTimingDetId(const CTPPSDetId& id) : CTPPSDetId(id) {}
/// Construct from hierarchy indices.
TotemTimingDetId(uint32_t arm,
uint32_t station,
uint32_t romanPot = 0,
uint32_t plane = 0,
uint32_t channel = 0,
uint32_t subdet = sdTimingFastSilicon);
static constexpr uint32_t startPlaneBit = 17, maskPlane = 0x3, maxPlane = 3, lowMaskPlane = 0x1FFFF;
static constexpr uint32_t startDetBit = 12, maskChannel = 0x1F, maxChannel = 31, lowMaskChannel = 0xFFF;
/// returns true if the raw ID is a PPS-timing one
static bool check(unsigned int raw) {
return (((raw >> DetId::kDetOffset) & 0xF) == DetId::VeryForward &&
(((raw >> DetId::kSubdetOffset) & 0x7) == sdTimingFastSilicon ||
((raw >> DetId::kSubdetOffset) & 0x7) == sdTimingDiamond));
}
//-------------------- getting and setting methods --------------------
uint32_t plane() const { return ((id_ >> startPlaneBit) & maskPlane); }
void setPlane(uint32_t channel) {
id_ &= ~(maskPlane << startPlaneBit);
id_ |= ((channel & maskPlane) << startPlaneBit);
}
uint32_t channel() const { return ((id_ >> startDetBit) & maskChannel); }
void setChannel(uint32_t channel) {
id_ &= ~(maskChannel << startDetBit);
id_ |= ((channel & maskChannel) << startDetBit);
}
//-------------------- id getters for higher-level objects --------------------
TotemTimingDetId planeId() const { return TotemTimingDetId(rawId() & (~lowMaskPlane)); }
//-------------------- name methods --------------------
inline void planeName(std::string& name, NameFlag flag = nFull) const {
switch (flag) {
case nShort:
name = "";
break;
case nFull:
rpName(name, flag);
name += "_";
break;
case nPath:
rpName(name, flag);
name += "/plane ";
break;
}
name += std::to_string(plane());
}
inline void channelName(std::string& name, NameFlag flag = nFull) const {
switch (flag) {
case nShort:
name = "";
break;
case nFull:
planeName(name, flag);
name += "_";
break;
case nPath:
planeName(name, flag);
name += "/channel ";
break;
}
name += std::to_string(channel());
}
};
std::ostream& operator<<(std::ostream& os, const TotemTimingDetId& id);
#endif
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