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d15ca731 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
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 | **************************************************************************/ | |
15 | ||
16 | /* $Id$ */ | |
17 | ||
18 | //*-- Author: Rachid Guernane (LPCCFd) | |
edd00c2d | 19 | // GLOBAL TRIGGER IMPLEMENTATION |
20 | // INPUTS ARE REGIONAL RESPONSES | |
21 | // OUTPUT IS A 12-BIT WORD | |
22 | // 4 BITS PER TRIGGER LEVEL | |
d15ca731 | 23 | |
24 | #include "AliMUONGlobalTriggerBoard.h" | |
41922e78 | 25 | #include "AliLog.h" |
d15ca731 | 26 | #include "TBits.h" |
27 | ||
28 | #include <Riostream.h> | |
29 | ||
30 | ClassImp(AliMUONGlobalTriggerBoard) | |
31 | ||
32 | //___________________________________________ | |
33 | AliMUONGlobalTriggerBoard::AliMUONGlobalTriggerBoard() | |
34 | { | |
35 | for (Int_t i=0;i<16;i++) fRegionalResponse[i] = 0; | |
36 | } | |
37 | ||
38 | //___________________________________________ | |
39 | AliMUONGlobalTriggerBoard::AliMUONGlobalTriggerBoard(const char *name, Int_t a) : AliMUONTriggerBoard(name, a) | |
40 | { | |
41 | for (Int_t i=0;i<16;i++) fRegionalResponse[i] = 0; | |
42 | } | |
43 | ||
41922e78 | 44 | //___________________________________________ |
45 | void AliMUONGlobalTriggerBoard::Mask(Int_t index, UShort_t mask) | |
46 | { | |
edd00c2d | 47 | // MASK GLOBAL TRIGGER BOARD INPUT index WITH VALUE mask |
41922e78 | 48 | if ( index>=0 && index < 16 ) |
49 | { | |
50 | fMask[index]=mask; | |
51 | } | |
52 | else | |
53 | { | |
54 | AliError(Form("Index %d out of bounds (max %d)",index,16)); | |
55 | } | |
56 | } | |
57 | ||
d15ca731 | 58 | //___________________________________________ |
59 | void AliMUONGlobalTriggerBoard::Response() | |
60 | { | |
edd00c2d | 61 | // COMPUTE THE GLOBAL TRIGGER BOARD |
62 | // RESPONSE ACCORDING TO THE Algo() METHOD | |
8d4fefab | 63 | /// output from global trigger algorithm |
64 | /// [+, -, LS, US] * [Hpt, Lpt] | |
65 | /// transformed to [usHpt, usLpt, lsHpt, lsLpt, sHpt, sLpt] according | |
66 | /// to Global Trigger Unit user manual | |
d15ca731 | 67 | |
8d4fefab | 68 | Int_t t[16]; |
41922e78 | 69 | for (Int_t i=0;i<16;i++) t[i] = fRegionalResponse[i] & fMask[i]; |
d15ca731 | 70 | |
71 | Int_t rank = 8; | |
72 | ||
73 | for (Int_t i=0;i<4;i++) | |
74 | { | |
75 | Int_t ip = 0; | |
76 | ||
77 | for (Int_t j=0;j<rank;j++) | |
78 | { | |
ad705f30 | 79 | UShort_t lthres = Algo(t[2*j],t[2*j+1],"LPT"); |
d15ca731 | 80 | |
ad705f30 | 81 | UShort_t hthres = Algo(t[2*j],t[2*j+1],"HPT"); hthres <<= 4; |
d15ca731 | 82 | |
ad705f30 | 83 | t[ip] = lthres | hthres; |
d15ca731 | 84 | |
85 | ip++; | |
86 | } | |
87 | ||
88 | rank /= 2; | |
89 | } | |
8d4fefab | 90 | UChar_t sLpt, sHpt, lsLpt, lsHpt, usLpt, usHpt; |
91 | sLpt = ((t[0] & 0xC) != 0); | |
92 | sHpt = ((t[0] & 0xC0) != 0); | |
93 | lsLpt = ((t[0] & 0x2) != 0); | |
94 | lsHpt = ((t[0] & 0x20) != 0); | |
95 | usLpt = ((t[0] & 0x1 ) != 0); | |
96 | usHpt = ((t[0] & 0x10) != 0); | |
97 | ||
98 | sHpt <<= 1; | |
99 | lsLpt <<= 2; | |
100 | lsHpt <<= 3; | |
101 | usLpt <<= 4; | |
102 | usHpt <<= 5; | |
103 | ||
104 | fResponse = sLpt | sHpt | lsLpt | lsHpt | usLpt |usHpt; | |
d15ca731 | 105 | } |
106 | ||
107 | //___________________________________________ | |
108 | UShort_t AliMUONGlobalTriggerBoard::Algo(UShort_t i, UShort_t j, char *thres) | |
109 | { | |
edd00c2d | 110 | // GLOBAL TRIGGER ALGORITHM |
ad705f30 | 111 | TBits a(8), b(8); a.Set(8,&i); b.Set(8,&j); |
d15ca731 | 112 | |
113 | TBits trg1(2), trg2(2), trg(2); | |
114 | ||
ad705f30 | 115 | if (!strcmp(thres,"LPT")) |
d15ca731 | 116 | { |
117 | trg1[0] = a[2]; trg1[1] = a[3]; | |
118 | trg2[0] = b[2]; trg2[1] = b[3]; | |
119 | } | |
d15ca731 | 120 | else |
121 | { | |
ad705f30 | 122 | trg1[0] = a[6]; trg1[1] = a[7]; |
123 | trg2[0] = b[6]; trg2[1] = b[7]; | |
d15ca731 | 124 | } |
125 | ||
126 | TBits trgLS1(1), trgUS1(1), trgLS2(1), trgUS2(1), trgLS(1), trgUS(1); | |
127 | ||
ad705f30 | 128 | if (!strcmp(thres,"LPT")) |
d15ca731 | 129 | { |
130 | trgLS1[0] = a[1]; trgUS1[0] = a[0]; | |
131 | trgLS2[0] = b[1]; trgUS2[0] = b[0]; | |
132 | } | |
d15ca731 | 133 | else |
134 | { | |
ad705f30 | 135 | trgLS1[0] = a[5]; trgUS1[0] = a[4]; |
136 | trgLS2[0] = b[5]; trgUS2[0] = b[4]; | |
d15ca731 | 137 | } |
138 | ||
139 | trgLS[0] = ( trg1[0] & trg2[0] ) | ( trg1[1] & trg2[1] ) | trgLS1[0] | trgLS2[0]; | |
140 | trgUS[0] = ( trg1[0] & trg2[1] ) | ( trg1[1] & trg2[0] ) | trgUS1[0] | trgUS2[0]; | |
141 | ||
142 | trg[0] = trg1[0] | trg2[0]; | |
143 | trg[1] = trg1[1] | trg2[1]; | |
144 | ||
145 | TBits v(4); | |
146 | ||
147 | v[0] = trgUS[0]; | |
148 | v[1] = trgLS[0]; | |
149 | v[2] = trg[0]; | |
150 | v[3] = trg[1]; | |
151 | ||
152 | UShort_t rv = 0; | |
153 | v.Get(&rv); | |
154 | ||
155 | return rv; | |
156 | } | |
157 | ||
158 | //___________________________________________ | |
edd00c2d | 159 | void AliMUONGlobalTriggerBoard::Scan(Option_t*) const |
d15ca731 | 160 | { |
edd00c2d | 161 | // PRINT GLOBAL TRIGGER OUTPUT |
ad705f30 | 162 | TBits w(8); w.Set(8,&fResponse); |
d15ca731 | 163 | |
164 | // TRG[1:0] | |
165 | // 00 noth | |
166 | // 01 negative track | |
167 | // 10 positive track | |
168 | // 11 undef | |
169 | ||
ad705f30 | 170 | Int_t iSP[2] = {0,0}, iSM[2] = {0,0}, iSU[2] = {0,0}; |
d15ca731 | 171 | |
172 | TBits a(2), n(2), p(2), u(2); | |
173 | ||
174 | UShort_t val; | |
175 | ||
176 | val = 1; n.Set(2,&val); | |
177 | val = 2; p.Set(2,&val); | |
178 | val = 3; u.Set(2,&val); | |
179 | ||
180 | a[0] = w[2]; | |
181 | a[1] = w[3]; | |
182 | ||
183 | if (a==p) iSP[0] = 1; | |
184 | else if (a==n) iSM[0] = 1; | |
185 | else if (a==u) iSU[0] = 1; | |
186 | ||
187 | a[0] = w[6]; | |
188 | a[1] = w[7]; | |
189 | ||
190 | if (a==p) iSP[1] = 1; | |
191 | else if (a==n) iSM[1] = 1; | |
192 | else if (a==u) iSU[1] = 1; | |
193 | ||
ad705f30 | 194 | Int_t iPU[2] = {w[0],w[4]}; |
195 | Int_t iPL[2] = {w[1],w[5]}; | |
d15ca731 | 196 | |
ad705f30 | 197 | printf("============================================\n"); |
198 | printf(" Global Trigger output Low pt High pt\n"); | |
d15ca731 | 199 | printf(" number of Single Plus :\t"); |
ad705f30 | 200 | for (Int_t i=0; i<2; i++) printf("%i\t",iSP[i]); |
d15ca731 | 201 | printf("\n"); |
202 | printf(" number of Single Minus :\t"); | |
ad705f30 | 203 | for (Int_t i=0; i<2; i++) printf("%i\t",iSM[i]); |
d15ca731 | 204 | printf("\n"); |
205 | printf(" number of Single Undefined :\t"); | |
ad705f30 | 206 | for (Int_t i=0; i<2; i++) printf("%i\t",iSU[i]); |
d15ca731 | 207 | printf("\n"); |
208 | printf(" number of UnlikeSign pair :\t"); | |
ad705f30 | 209 | for (Int_t i=0; i<2; i++) printf("%i\t",iPU[i]); |
d15ca731 | 210 | printf("\n"); |
211 | printf(" number of LikeSign pair :\t"); | |
ad705f30 | 212 | for (Int_t i=0; i<2; i++) printf("%i\t",iPL[i]); |
d15ca731 | 213 | printf("\n"); |
214 | printf("===================================================\n"); | |
215 | printf("\n"); | |
216 | } | |
217 | ||
218 | ClassImp(AliMUONGlobalTriggerBoard) |