1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
22 #include "AliRunLoader.h"
23 #include "AliTriggerInput.h"
25 #include "AliITSTrigger.h"
26 #include "AliITSdigitSPD.h"
27 #include "AliITSgeom.h"
28 #include "AliITSLoader.h"
30 //______________________________________________________________________
31 ClassImp(AliITSTrigger)
32 ////////////////////////////////////////////////////////////////////////
35 // Modified by D. Elia, C. Jorgensen
39 // Written by J. Conrad, E. Lopez Torres
42 // AliITSTrigger: implementation of the SPD Fast-OR based triggers.
44 ////////////////////////////////////////////////////////////////////////
46 //______________________________________________________________________
47 AliITSTrigger::AliITSTrigger()
48 : AliTriggerDetector()
53 // set parameters to define trigger condition thresholds
54 fGlobalFOThreshold = 1;
55 fHighMultFOThreshold = 150;
58 //______________________________________________________________________
59 void AliITSTrigger::CreateInputs()
63 // Do not create inputs again!!
64 if( fInputs.GetEntriesFast() > 0 ) return;
66 fInputs.AddLast( new AliTriggerInput( "ITS_SPD_GFO_L0", "Global, Fast OR all detectors", 0x01 ) );
67 fInputs.AddLast( new AliTriggerInput( "ITS_SPD_HMULT_L0", "High Multiplicity", 0x02 ) );
71 //______________________________________________________________________
72 void AliITSTrigger::Trigger()
75 // ********** Get run loader for the current event **********
76 AliRunLoader* runLoader = gAlice->GetRunLoader();
78 AliITSLoader* loader = (AliITSLoader* )runLoader->GetLoader( "ITSLoader" );
79 AliITSgeom* geom = loader->GetITSgeom();
80 loader->LoadDigits("READ");
81 TTree *treeD = loader->TreeD();
83 TObjArray *digDet = 0;
84 digDet = new TObjArray(3);
87 // Cut on Signal In the Pixel Detector
88 TBranch* br = treeD->GetBranch( "ITSDigitsSPD" );
89 br->SetAddress( &((*digDet)[0]) );
90 ((TClonesArray*)(digDet->At(0)))->Clear();
92 MultiplicityTriggers(digDet, treeD, geom);
93 // GeometryTriggers(digDet, treeD, geom);
95 // Debug : FIX change to AliLog
96 // cout << "=================================================" << endl;
97 // cout << " Pixel Trigger Mask ( " << hex << "0x" << GetMask() << " )" << endl << endl;
98 // cout << " Global Fast OR " << "0x" << GetInput( "ITS_SPD_GFO_L0" )->GetValue() << endl;
99 // cout << " High Multiplicity " << "0x" << GetInput( "ITS_SPD_HMULT_L0" )->GetValue() << endl;
100 // cout << "=================================================" << endl << endl;
104 //______________________________________________________________________
105 void AliITSTrigger::MultiplicityTriggers(TObjArray* digDet, TTree* treeD, AliITSgeom* geom)
107 // simple FO triggers that only cares about the multiplicity
109 Int_t startSPD = geom->GetStartSPD();
110 Int_t lastSPD = geom->GetLastSPD();
112 Int_t totalNumberOfFO = 0;
113 Int_t ndigitsInChip[5];
115 // loop over modules (ladders)
116 for (Int_t moduleIndex=startSPD; moduleIndex<lastSPD+1; moduleIndex++) {
117 treeD->GetEvent(moduleIndex);
118 TClonesArray* digits = (TClonesArray*) (digDet->At(0)); // SPD only.
120 // get number of digits in this module
121 Int_t ndigitsInModule = digits->GetEntriesFast();
123 // get number of digits in each chip of the module
124 for( Int_t iChip=0; iChip<5; iChip++ ) {
125 ndigitsInChip[iChip]=0;
127 for( Int_t iDig=0; iDig<ndigitsInModule; iDig++ ) {
128 AliITSdigitSPD* dp = (AliITSdigitSPD*) digits->At(iDig);
129 Int_t column = dp->GetCoord1();
130 Int_t isChip = Int_t(column/32.);
131 ndigitsInChip[isChip]++;
133 // get number of FOs in the module
134 for( Int_t ifChip=0; ifChip<5; ifChip++ ) {
135 if( ndigitsInChip[ifChip] >= 1 ) {
139 // end of loop over modules
142 // produce input trigger condition
143 if (totalNumberOfFO>=fGlobalFOThreshold)
144 SetInput( "ITS_SPD_GFO_L0" );
146 if (totalNumberOfFO>=fHighMultFOThreshold)
147 SetInput( "ITS_SPD_HMULT_L0" );
153 //______________________________________________________________________
154 // void AliITSTrigger::GeometryTriggers(TObjArray* digDet, TTree* treeD, AliITSgeom* geom)
155 void AliITSTrigger::GeometryTriggers()
158 // // const Int_t nlay = 2; // not used
159 // // const Int_t nlad = 240; // not used
160 // // const Int_t nstave = 40; // not used
161 // // const Int_t ndet = 4; // not used
162 // // const Int_t nchip = 5; // not used
163 // // const Int_t ntotal = 1200;
166 // Int_t iFOperlayer[2];
167 // Int_t iFOperladder[240];
168 // Int_t iFOperstave[40][2];
169 // // Int_t iFOperchip[ntotal]; // not used
170 // Int_t iFOperChipinStave[20][40][2];
172 // for (Int_t m=startSPD;m<lastSPD+1;m++) {
173 // iFOperladder[m] = 0;
176 // for (Int_t k = 0;k<2;k++){
177 // iFOperlayer[k] = 0;
178 // for (Int_t o=0; o<40; o++) {
179 // iFOperstave[o][k] = 0;
180 // for (Int_t ich=0; ich<20; ich++) {
181 // iFOperChipinStave[ich][o][k] = 0;
187 // Int_t mInStaveCounter = 0;
188 // Int_t checkStave = 0;
190 // // loop over modules
191 // for (Int_t moduleIndex=startSPD; moduleIndex<lastSPD+1; moduleIndex++) {
192 // treeD->GetEvent(moduleIndex);
193 // TClonesArray* digits = (TClonesArray*) (digDet->At(0)); // SPD only.
195 // Int_t lay, stav, det;
196 // geom->GetModuleId(moduleIndex,lay,stav,det);
198 // ndig = digits->GetEntriesFast();
200 // for( Int_t l=0; l<5; l++ ) {
203 // for( Int_t dig=0; dig<ndig; dig++) {
204 // AliITSdigitSPD* dp = (AliITSdigitSPD*) digits->At(dig);
205 // Int_t column = dp->GetCoord1();
206 // // Int_t row = dp->GetCoord2();
207 // Int_t chip = Int_t(column/32.);
211 // if (checkStave != stav) {
212 // mInStaveCounter = 0;
214 // mInStaveCounter += 1;
219 // // mInStave 0,..,3
220 // // chipInStave 0,..,19
222 // //cout << "m " << m << " stav " << stav << " mInStave " << mInStaveCounter << " " <<lay << endl;
224 // for (Int_t ichip=0; ichip<5; ichip++) {
225 // //Int_t seq = (m*5+ichip);
226 // Int_t chipInStave = (mInStaveCounter *5) + ichip;
228 // if (ndigA[ichip] >= 1) {
229 // iFOperladder[moduleIndex]++;
230 // iFOperlayer[lay-1]++;
231 // iFOperstave[stav-1][lay-1]++;
232 // //iFOperHstave[hstav-1][lay-1]++;
233 // iFOperChipinStave[chipInStave][stav-1][lay-1]++;
237 // // SIMPLE FO ---> ANY HIT TRIGGERS
239 // checkStave = stav;
240 // } // endl loop over SPD's
244 // if ( ndigfo >= singhitthreshold ) {
245 // // Set input GLOBAL FO
246 // SetInput( "ITS_SPD_GFO_L0" );
247 // // or SetInput( "0x01" );
248 // // or ((AliTriggerInput*)fInputs.At(0))->Set();
249 // // bit1 |= (1 << 1);