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#ifndef DataFormats_LTCDigi_h
#define DataFormats_LTCDigi_h
#include <vector>
#include <ostream>
#include <string>
#include "FWCore/Utilities/interface/typedefs.h"
/** \class LTCDigi
* Data from the Local Trigger Controller (LTC)
*
*/
class LTCDigi {
public:
// need a default constructor!
LTCDigi() {}
LTCDigi(const unsigned char *data);
// STATIC functions
// These are to allow the event builder to grab the run number
// from a butter it knows points at LTC data.
static cms_uint32_t GetEventNumberFromBuffer(const unsigned char *databuffer);
static cms_uint32_t GetRunNumberFromBuffer(const unsigned char *databuffer);
static std::string utcTime(cms_uint64_t t);
static std::string locTime(cms_uint64_t t);
// right now these are just silly but maybe if we pack the internals
// then this won't seem as silly
unsigned int eventNumber() const { return eventNumber_; };
unsigned int eventID() const { return eventID_; };
unsigned int runNumber() const { return runNumber_; };
unsigned int bunchNumber() const { return bunchNumber_; };
cms_uint32_t orbitNumber() const { return orbitNumber_; };
int version() const { return versionNumber_; };
int sourceID() const { return sourceID_; };
int daqPartition() const { return daqPartition_; };
cms_uint32_t triggerInputStatus() const { return trigInputStat_; };
cms_uint32_t triggerInhibitNumber() const { return trigInhibitNumber_; };
cms_uint64_t bstGpsTime() const { return bstGpsTime_; };
unsigned int bxMask() const { return ((triggerInputStatus() >> 28) & 0x1); };
unsigned int vmeTrigger() const { return ((triggerInputStatus() >> 27) & 0x1); };
unsigned int ramTrigger() const { return ((triggerInputStatus() >> 26) & 0x1); };
unsigned char externTriggerMask() const // six bits
{
return ((triggerInputStatus() >> 20) & 0x3FU);
};
unsigned char cyclicTriggerMask() const // six bits
{
return (triggerInputStatus() & 0x3FU);
};
bool HasTriggered(int i) const {
if (i > 5)
return false; // throw exception?
return ((externTriggerMask() & (0x1U << i)) != 0);
}
private:
// unpacked for now
unsigned int trigType_; // 4 bits
unsigned int eventID_; // 24 bits
unsigned int runNumber_; // 32 bits
unsigned int sourceID_; // 12 bits - 0xCBB constant for LTC
unsigned int bunchNumber_; // 12 bits
cms_uint32_t orbitNumber_; // 32 bits
int versionNumber_; // 8 bits - Slink data version number
int daqPartition_; // 4 bits
cms_uint32_t eventNumber_; // 32 bits
// same as event number up to resets
cms_uint32_t trigInputStat_; // 32 bits
cms_uint32_t trigInhibitNumber_; // 32 bits
cms_uint64_t bstGpsTime_; // 64 bits - is standard unix time in seconds
};
std::ostream &operator<<(std::ostream &stream, const LTCDigi &myDigi);
typedef std::vector<LTCDigi> LTCDigiCollection;
#endif // DataFormats_LTCDigi_h
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