]>
Commit | Line | Data |
---|---|---|
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 | ||
c4ee792d | 18 | /// \class AliMUONGlobalTriggerBoard |
19 | /// Global trigger implementation: | |
20 | /// - inputs are regional responses | |
21 | /// - output is a 12-bit word | |
22 | /// - 4 bits per trigger level | |
23 | /// | |
24 | /// \author Rachid Guernane (LPCCFd) | |
d15ca731 | 25 | |
26 | #include "AliMUONGlobalTriggerBoard.h" | |
41922e78 | 27 | #include "AliLog.h" |
d15ca731 | 28 | #include "TBits.h" |
29 | ||
30 | #include <Riostream.h> | |
31 | ||
32 | ClassImp(AliMUONGlobalTriggerBoard) | |
33 | ||
34 | //___________________________________________ | |
35 | AliMUONGlobalTriggerBoard::AliMUONGlobalTriggerBoard() | |
36 | { | |
37 | for (Int_t i=0;i<16;i++) fRegionalResponse[i] = 0; | |
38 | } | |
39 | ||
40 | //___________________________________________ | |
41 | AliMUONGlobalTriggerBoard::AliMUONGlobalTriggerBoard(const char *name, Int_t a) : AliMUONTriggerBoard(name, a) | |
42 | { | |
43 | for (Int_t i=0;i<16;i++) fRegionalResponse[i] = 0; | |
44 | } | |
45 | ||
41922e78 | 46 | //___________________________________________ |
47 | void AliMUONGlobalTriggerBoard::Mask(Int_t index, UShort_t mask) | |
48 | { | |
edd00c2d | 49 | // MASK GLOBAL TRIGGER BOARD INPUT index WITH VALUE mask |
41922e78 | 50 | if ( index>=0 && index < 16 ) |
51 | { | |
52 | fMask[index]=mask; | |
53 | } | |
54 | else | |
55 | { | |
56 | AliError(Form("Index %d out of bounds (max %d)",index,16)); | |
57 | } | |
58 | } | |
59 | ||
d15ca731 | 60 | //___________________________________________ |
61 | void AliMUONGlobalTriggerBoard::Response() | |
62 | { | |
edd00c2d | 63 | // COMPUTE THE GLOBAL TRIGGER BOARD |
64 | // RESPONSE ACCORDING TO THE Algo() METHOD | |
8d4fefab | 65 | /// output from global trigger algorithm |
66 | /// [+, -, LS, US] * [Hpt, Lpt] | |
67 | /// transformed to [usHpt, usLpt, lsHpt, lsLpt, sHpt, sLpt] according | |
68 | /// to Global Trigger Unit user manual | |
d15ca731 | 69 | |
8d4fefab | 70 | Int_t t[16]; |
41922e78 | 71 | for (Int_t i=0;i<16;i++) t[i] = fRegionalResponse[i] & fMask[i]; |
d15ca731 | 72 | |
73 | Int_t rank = 8; | |
74 | ||
75 | for (Int_t i=0;i<4;i++) | |
76 | { | |
77 | Int_t ip = 0; | |
78 | ||
79 | for (Int_t j=0;j<rank;j++) | |
80 | { | |
ad705f30 | 81 | UShort_t lthres = Algo(t[2*j],t[2*j+1],"LPT"); |
d15ca731 | 82 | |
ad705f30 | 83 | UShort_t hthres = Algo(t[2*j],t[2*j+1],"HPT"); hthres <<= 4; |
d15ca731 | 84 | |
ad705f30 | 85 | t[ip] = lthres | hthres; |
d15ca731 | 86 | |
87 | ip++; | |
88 | } | |
89 | ||
90 | rank /= 2; | |
91 | } | |
8d4fefab | 92 | UChar_t sLpt, sHpt, lsLpt, lsHpt, usLpt, usHpt; |
93 | sLpt = ((t[0] & 0xC) != 0); | |
94 | sHpt = ((t[0] & 0xC0) != 0); | |
95 | lsLpt = ((t[0] & 0x2) != 0); | |
96 | lsHpt = ((t[0] & 0x20) != 0); | |
97 | usLpt = ((t[0] & 0x1 ) != 0); | |
98 | usHpt = ((t[0] & 0x10) != 0); | |
99 | ||
100 | sHpt <<= 1; | |
101 | lsLpt <<= 2; | |
102 | lsHpt <<= 3; | |
103 | usLpt <<= 4; | |
104 | usHpt <<= 5; | |
105 | ||
106 | fResponse = sLpt | sHpt | lsLpt | lsHpt | usLpt |usHpt; | |
d15ca731 | 107 | } |
108 | ||
109 | //___________________________________________ | |
110 | UShort_t AliMUONGlobalTriggerBoard::Algo(UShort_t i, UShort_t j, char *thres) | |
111 | { | |
edd00c2d | 112 | // GLOBAL TRIGGER ALGORITHM |
ad705f30 | 113 | TBits a(8), b(8); a.Set(8,&i); b.Set(8,&j); |
d15ca731 | 114 | |
115 | TBits trg1(2), trg2(2), trg(2); | |
116 | ||
ad705f30 | 117 | if (!strcmp(thres,"LPT")) |
d15ca731 | 118 | { |
119 | trg1[0] = a[2]; trg1[1] = a[3]; | |
120 | trg2[0] = b[2]; trg2[1] = b[3]; | |
121 | } | |
d15ca731 | 122 | else |
123 | { | |
ad705f30 | 124 | trg1[0] = a[6]; trg1[1] = a[7]; |
125 | trg2[0] = b[6]; trg2[1] = b[7]; | |
d15ca731 | 126 | } |
127 | ||
128 | TBits trgLS1(1), trgUS1(1), trgLS2(1), trgUS2(1), trgLS(1), trgUS(1); | |
129 | ||
ad705f30 | 130 | if (!strcmp(thres,"LPT")) |
d15ca731 | 131 | { |
132 | trgLS1[0] = a[1]; trgUS1[0] = a[0]; | |
133 | trgLS2[0] = b[1]; trgUS2[0] = b[0]; | |
134 | } | |
d15ca731 | 135 | else |
136 | { | |
ad705f30 | 137 | trgLS1[0] = a[5]; trgUS1[0] = a[4]; |
138 | trgLS2[0] = b[5]; trgUS2[0] = b[4]; | |
d15ca731 | 139 | } |
140 | ||
141 | trgLS[0] = ( trg1[0] & trg2[0] ) | ( trg1[1] & trg2[1] ) | trgLS1[0] | trgLS2[0]; | |
142 | trgUS[0] = ( trg1[0] & trg2[1] ) | ( trg1[1] & trg2[0] ) | trgUS1[0] | trgUS2[0]; | |
143 | ||
144 | trg[0] = trg1[0] | trg2[0]; | |
145 | trg[1] = trg1[1] | trg2[1]; | |
146 | ||
147 | TBits v(4); | |
148 | ||
149 | v[0] = trgUS[0]; | |
150 | v[1] = trgLS[0]; | |
151 | v[2] = trg[0]; | |
152 | v[3] = trg[1]; | |
153 | ||
154 | UShort_t rv = 0; | |
155 | v.Get(&rv); | |
156 | ||
157 | return rv; | |
158 | } | |
159 | ||
160 | //___________________________________________ | |
edd00c2d | 161 | void AliMUONGlobalTriggerBoard::Scan(Option_t*) const |
d15ca731 | 162 | { |
edd00c2d | 163 | // PRINT GLOBAL TRIGGER OUTPUT |
ad705f30 | 164 | TBits w(8); w.Set(8,&fResponse); |
d15ca731 | 165 | |
166 | // TRG[1:0] | |
167 | // 00 noth | |
168 | // 01 negative track | |
169 | // 10 positive track | |
170 | // 11 undef | |
171 | ||
ad705f30 | 172 | Int_t iSP[2] = {0,0}, iSM[2] = {0,0}, iSU[2] = {0,0}; |
d15ca731 | 173 | |
174 | TBits a(2), n(2), p(2), u(2); | |
175 | ||
176 | UShort_t val; | |
177 | ||
178 | val = 1; n.Set(2,&val); | |
179 | val = 2; p.Set(2,&val); | |
180 | val = 3; u.Set(2,&val); | |
181 | ||
182 | a[0] = w[2]; | |
183 | a[1] = w[3]; | |
184 | ||
185 | if (a==p) iSP[0] = 1; | |
186 | else if (a==n) iSM[0] = 1; | |
187 | else if (a==u) iSU[0] = 1; | |
188 | ||
189 | a[0] = w[6]; | |
190 | a[1] = w[7]; | |
191 | ||
192 | if (a==p) iSP[1] = 1; | |
193 | else if (a==n) iSM[1] = 1; | |
194 | else if (a==u) iSU[1] = 1; | |
195 | ||
ad705f30 | 196 | Int_t iPU[2] = {w[0],w[4]}; |
197 | Int_t iPL[2] = {w[1],w[5]}; | |
d15ca731 | 198 | |
ad705f30 | 199 | printf("============================================\n"); |
200 | printf(" Global Trigger output Low pt High pt\n"); | |
d15ca731 | 201 | printf(" number of Single Plus :\t"); |
ad705f30 | 202 | for (Int_t i=0; i<2; i++) printf("%i\t",iSP[i]); |
d15ca731 | 203 | printf("\n"); |
204 | printf(" number of Single Minus :\t"); | |
ad705f30 | 205 | for (Int_t i=0; i<2; i++) printf("%i\t",iSM[i]); |
d15ca731 | 206 | printf("\n"); |
207 | printf(" number of Single Undefined :\t"); | |
ad705f30 | 208 | for (Int_t i=0; i<2; i++) printf("%i\t",iSU[i]); |
d15ca731 | 209 | printf("\n"); |
210 | printf(" number of UnlikeSign pair :\t"); | |
ad705f30 | 211 | for (Int_t i=0; i<2; i++) printf("%i\t",iPU[i]); |
d15ca731 | 212 | printf("\n"); |
213 | printf(" number of LikeSign pair :\t"); | |
ad705f30 | 214 | for (Int_t i=0; i<2; i++) printf("%i\t",iPL[i]); |
d15ca731 | 215 | printf("\n"); |
216 | printf("===================================================\n"); | |
217 | printf("\n"); | |
218 | } | |
219 | ||
220 | ClassImp(AliMUONGlobalTriggerBoard) |