trgQTMasks.h

#ifndef _TRG_QT_MASKS_
#define _TRG_QT_MASKS_

#include <rtsSystems.h>


/*
        The "system" bits below are used in the per-event STP "system_word"
        which defines whic Trigger (sub)systems need to be readout for
        this particular event.
        
        For example, an STP word in this form:

        stp_system_word = (1<<TRG_SYS_VPD) | (1<<TRG_SYS_MTD) | (1<< TRG_SYS_FMS) ;

        will _only_ read the QT boards that correspond those sysbsystems
        for this specific event.

        These bits are used/set/sent in the L0 processor depending on the trigger/event
        based upon the Run Control per/trigger setup.

        They are also used in the QT readout code.
*/

/* bits of the various Trigger QT-based subsystems */
#define TRG_SYS_VPD     0
#define TRG_SYS_BBC     1
#define TRG_SYS_ZDC     2
#define TRG_SYS_TOF     3
#define TRG_SYS_MTD     4
#define TRG_SYS_FMS     5
#define TRG_SYS_PP2     6       /* pp2pp */
#define TRG_SYS_EPD     7




/*
        The function below will return the bitmask of QTs which only
        need to be readout for a given Trigger crate (or "instance" as defined
        in rtsSystems.h) using the per-event STP "system word" set by
        the L0 CPU based upon the Run Control setings.

        The function is ONLY used in the QT readout task.
*/
inline unsigned int trgQTCrateMask(int my_trg_instance, unsigned int stp_system_word)
{
        unsigned int mask = 0 ;

        switch(my_trg_instance) {
        case TRG_QT1_INSTANCE :
        case TRG_QT2_INSTANCE :
        case TRG_QT3_INSTANCE :
        case TRG_QT4_INSTANCE :
                if(stp_system_word & (1<<TRG_SYS_FMS)) mask |= 0x3FF ;  //11 QTs each
                break ;
        case TRG_BBQ_INSTANCE :
                if(stp_system_word & (1<<TRG_SYS_BBC)) mask |= 0x001 ;          
                if(stp_system_word & (1<<TRG_SYS_VPD)) mask |= 0x040 ;          
                if(stp_system_word & (1<<TRG_SYS_ZDC)) mask |= 0x100 ;          
                break ;
        case TRG_MXQ_INSTANCE :
                if(stp_system_word & (1<<TRG_SYS_MTD)) mask |= 0x371 ;
                if(stp_system_word & (1<<TRG_SYS_PP2)) mask |= 0x002 ;
                if(stp_system_word & (1<<TRG_SYS_ZDC)) mask |= 0x004 ;
                if(stp_system_word & (1<<TRG_SYS_VPD)) mask |= 0x018 ;
                break ;
        case TRG_FEQ_INSTANCE :
                if(stp_system_word & (1<<TRG_SYS_EPD)) mask |= 0x003 ;          
                break ;

        default :       //this is an error!
                break ;
        }

        return mask ;

}



#endif