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809874e0 | 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 | // DIMUON REGIONAL TRIGGER IMPLEMENTATION |
20 | // ENTRY ARE LOCAL BOARD RESPONSES | |
21 | // OUTPUT IS 12-BIT WORD | |
22 | // ALGORITHM IS SIMILAR TO THE GLOBAL ONE | |
809874e0 | 23 | |
24 | #include "AliMUONRegionalTriggerBoard.h" | |
25 | ||
41922e78 | 26 | #include "AliLog.h" |
27 | ||
809874e0 | 28 | #include "TBits.h" |
29 | ||
30 | #include <Riostream.h> | |
31 | ||
32 | ClassImp(AliMUONRegionalTriggerBoard) | |
33 | ||
34 | //___________________________________________ | |
35 | AliMUONRegionalTriggerBoard::AliMUONRegionalTriggerBoard() | |
36 | { | |
37 | for (Int_t i=0; i<16; i++) fLocalResponse[i] = 0; | |
38 | } | |
39 | ||
40 | //___________________________________________ | |
41 | AliMUONRegionalTriggerBoard::AliMUONRegionalTriggerBoard(const char *name, Int_t a) : AliMUONTriggerBoard(name, a) | |
42 | { | |
43 | for (Int_t i=0; i<16; i++) fLocalResponse[i] = 0; | |
44 | } | |
45 | ||
46 | //___________________________________________ | |
47 | void AliMUONRegionalTriggerBoard::Response() | |
48 | { | |
edd00c2d | 49 | /* |
50 | RESPONSE IS GIVEN FOLLOWING THE REGIONAL ALGORITHM | |
51 | */ | |
52 | Int_t t[16]; | |
809874e0 | 53 | |
41922e78 | 54 | for (Int_t i=0;i<16;i++) t[i] = fLocalResponse[i] & fMask[i]; |
809874e0 | 55 | |
56 | Int_t rank = 8; | |
57 | ||
58 | for (Int_t i=0;i<4;i++) | |
59 | { | |
60 | Int_t ip = 0; | |
61 | ||
62 | for (Int_t j=0;j<rank;j++) | |
63 | { | |
ad705f30 | 64 | UShort_t lthres = Algo(t[2*j],t[2*j+1],"LPT",i); |
809874e0 | 65 | |
ad705f30 | 66 | UShort_t hthres = Algo(t[2*j],t[2*j+1],"HPT",i); hthres <<= 4; |
809874e0 | 67 | |
ad705f30 | 68 | t[ip] = lthres | hthres; |
809874e0 | 69 | |
70 | ip++; | |
71 | } | |
72 | ||
73 | rank /= 2; | |
74 | } | |
75 | ||
ad705f30 | 76 | fResponse = t[0]; // 8-bit [H4:L4] |
809874e0 | 77 | } |
78 | ||
79 | //___________________________________________ | |
80 | UShort_t AliMUONRegionalTriggerBoard::Algo(UShort_t i, UShort_t j, char *thres, Int_t level) | |
81 | { | |
edd00c2d | 82 | // IMPLEMENTATION OF THE REGIONAL ALGORITHM |
83 | // SIMILAR TO THE GLOBAL ALGORITHM EXCEPT FOR THE | |
84 | // INPUT LAYER | |
ad705f30 | 85 | TBits a(8), b(8); a.Set(8,&i); b.Set(8,&j); |
809874e0 | 86 | |
87 | TBits trg1(2), trg2(2), trg(2); | |
88 | ||
ad705f30 | 89 | if (!strcmp(thres,"LPT")) |
809874e0 | 90 | { |
91 | if (!level) | |
92 | { | |
93 | trg1[0] = a[0]; trg1[1] = a[1]; | |
94 | trg2[0] = b[0]; trg2[1] = b[1]; | |
95 | } | |
96 | else | |
97 | { | |
98 | trg1[0] = a[2]; trg1[1] = a[3]; | |
99 | trg2[0] = b[2]; trg2[1] = b[3]; | |
100 | } | |
101 | } | |
ad705f30 | 102 | else |
809874e0 | 103 | { |
104 | if (!level) | |
105 | { | |
106 | trg1[0] = a[2]; trg1[1] = a[3]; | |
107 | trg2[0] = b[2]; trg2[1] = b[3]; | |
108 | } | |
109 | else | |
110 | { | |
111 | trg1[0] = a[6]; trg1[1] = a[7]; | |
ad705f30 | 112 | trg2[0] = b[6]; trg2[1] = b[7]; |
809874e0 | 113 | } |
114 | } | |
115 | ||
116 | TBits trgLS1(1), trgUS1(1), trgLS2(1), trgUS2(1), trgLS(1), trgUS(1); | |
117 | ||
118 | if (!level) | |
119 | { | |
120 | trgLS1[0] = trgUS1[0] = trgLS2[0] = trgUS2[0] = 0; | |
121 | } | |
122 | else | |
123 | { | |
ad705f30 | 124 | if (!strcmp(thres,"LPT")) |
809874e0 | 125 | { |
126 | trgLS1[0] = a[1]; trgUS1[0] = a[0]; | |
127 | trgLS2[0] = b[1]; trgUS2[0] = b[0]; | |
128 | } | |
809874e0 | 129 | else |
130 | { | |
ad705f30 | 131 | trgLS1[0] = a[5]; trgUS1[0] = a[4]; |
132 | trgLS2[0] = b[5]; trgUS2[0] = b[4]; | |
809874e0 | 133 | } |
134 | } | |
135 | ||
136 | trgLS[0] = ( trg1[0] & trg2[0] ) | ( trg1[1] & trg2[1] ) | trgLS1[0] | trgLS2[0]; | |
137 | trgUS[0] = ( trg1[0] & trg2[1] ) | ( trg1[1] & trg2[0] ) | trgUS1[0] | trgUS2[0]; | |
138 | ||
139 | trg[0] = trg1[0] | trg2[0]; | |
140 | trg[1] = trg1[1] | trg2[1]; | |
141 | ||
142 | TBits v(4); | |
143 | ||
144 | v[0] = trgUS[0]; | |
145 | v[1] = trgLS[0]; | |
146 | v[2] = trg[0]; | |
147 | v[3] = trg[1]; | |
148 | ||
149 | UShort_t rv = 0; | |
150 | v.Get(&rv); | |
151 | ||
152 | return rv; | |
153 | } | |
edd00c2d | 154 | |
809874e0 | 155 | //___________________________________________ |
edd00c2d | 156 | void AliMUONRegionalTriggerBoard::Scan(Option_t*) const |
809874e0 | 157 | { |
edd00c2d | 158 | /* |
159 | SCAN LOCAL BOARD ENTRIES | |
160 | */ | |
161 | for (Int_t i=0; i<16; i++) | |
a4435944 | 162 | { |
163 | TBits b; | |
164 | b.Set(6,&fLocalResponse[i]); | |
165 | ||
166 | cout << "Entry " << i << " is " << b << endl; | |
167 | ||
168 | } | |
169 | ||
809874e0 | 170 | } |
171 | ||
41922e78 | 172 | //___________________________________________ |
173 | void AliMUONRegionalTriggerBoard::Mask(Int_t index, UShort_t mask) | |
174 | { | |
edd00c2d | 175 | // MASK ENTRY index |
41922e78 | 176 | if ( index>=0 && index < 16 ) |
177 | { | |
178 | fMask[index]=mask; | |
179 | } | |
180 | else | |
181 | { | |
182 | AliError(Form("Index %d out of bounds (max %d)",index,16)); | |
183 | } | |
184 | } | |
809874e0 | 185 | |
186 | ClassImp(AliMUONRegionalTriggerBoard) |