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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 | ||
3d1463c8 | 18 | //----------------------------------------------------------------------------- |
c4ee792d | 19 | /// \class AliMUONGlobalTriggerBoard |
20 | /// Global trigger implementation: | |
21 | /// - inputs are regional responses | |
22 | /// - output is a 12-bit word | |
23 | /// - 4 bits per trigger level | |
24 | /// | |
c05673c9 | 25 | /// \author Rachid Guernane (LPCCFd), |
26 | /// Corrected by Christian Finck (Subatech) | |
3d1463c8 | 27 | //----------------------------------------------------------------------------- |
d15ca731 | 28 | |
29 | #include "AliMUONGlobalTriggerBoard.h" | |
41922e78 | 30 | #include "AliLog.h" |
d15ca731 | 31 | #include "TBits.h" |
32 | ||
33 | #include <Riostream.h> | |
34 | ||
c05673c9 | 35 | /// \cond CLASSIMP |
d15ca731 | 36 | ClassImp(AliMUONGlobalTriggerBoard) |
c05673c9 | 37 | /// \endcond |
d15ca731 | 38 | |
39 | //___________________________________________ | |
c05673c9 | 40 | AliMUONGlobalTriggerBoard::AliMUONGlobalTriggerBoard(): AliMUONTriggerBoard() |
d15ca731 | 41 | { |
71a2d3aa | 42 | /// Default constructor |
43 | ||
d15ca731 | 44 | for (Int_t i=0;i<16;i++) fRegionalResponse[i] = 0; |
45 | } | |
46 | ||
47 | //___________________________________________ | |
48 | AliMUONGlobalTriggerBoard::AliMUONGlobalTriggerBoard(const char *name, Int_t a) : AliMUONTriggerBoard(name, a) | |
49 | { | |
71a2d3aa | 50 | /// Standard constructor |
51 | ||
d15ca731 | 52 | for (Int_t i=0;i<16;i++) fRegionalResponse[i] = 0; |
53 | } | |
54 | ||
71a2d3aa | 55 | //___________________________________________ |
56 | AliMUONGlobalTriggerBoard::~AliMUONGlobalTriggerBoard() | |
57 | { | |
58 | /// Destructor | |
59 | } | |
60 | ||
41922e78 | 61 | //___________________________________________ |
62 | void AliMUONGlobalTriggerBoard::Mask(Int_t index, UShort_t mask) | |
63 | { | |
c05673c9 | 64 | /// mask global trigger board input index with value mask |
65 | if ( index>=0 && index < 2 ) | |
41922e78 | 66 | { |
67 | fMask[index]=mask; | |
68 | } | |
69 | else | |
70 | { | |
c05673c9 | 71 | AliError(Form("Index %d out of bounds (max %d)",index,2)); |
41922e78 | 72 | } |
73 | } | |
74 | ||
d15ca731 | 75 | //___________________________________________ |
76 | void AliMUONGlobalTriggerBoard::Response() | |
77 | { | |
c05673c9 | 78 | /// compute the global trigger board |
79 | /// response according to the algo() method | |
71a2d3aa | 80 | // output from global trigger algorithm |
81 | // [+, -, LS, US] * [Hpt, Lpt] | |
82 | // transformed to [usHpt, usLpt, lsHpt, lsLpt, sHpt, sLpt] according | |
83 | // to Global Trigger Unit user manual | |
d15ca731 | 84 | |
8d4fefab | 85 | Int_t t[16]; |
d15ca731 | 86 | |
c05673c9 | 87 | for (Int_t i = 0; i < 16; ++i) |
88 | { | |
89 | Int_t index = i/8; | |
90 | Int_t shift = i % 8; | |
91 | UShort_t enable = !((fMask[index] >> shift) & 0x1); | |
92 | if (enable) | |
93 | t[i] = fRegionalResponse[i]; | |
94 | else | |
95 | t[i] = 0; | |
96 | } | |
97 | ||
d15ca731 | 98 | Int_t rank = 8; |
99 | ||
100 | for (Int_t i=0;i<4;i++) | |
101 | { | |
102 | Int_t ip = 0; | |
103 | ||
104 | for (Int_t j=0;j<rank;j++) | |
105 | { | |
ad705f30 | 106 | UShort_t lthres = Algo(t[2*j],t[2*j+1],"LPT"); |
d15ca731 | 107 | |
ad705f30 | 108 | UShort_t hthres = Algo(t[2*j],t[2*j+1],"HPT"); hthres <<= 4; |
d15ca731 | 109 | |
ad705f30 | 110 | t[ip] = lthres | hthres; |
d15ca731 | 111 | |
112 | ip++; | |
113 | } | |
114 | ||
115 | rank /= 2; | |
116 | } | |
8d4fefab | 117 | UChar_t sLpt, sHpt, lsLpt, lsHpt, usLpt, usHpt; |
118 | sLpt = ((t[0] & 0xC) != 0); | |
119 | sHpt = ((t[0] & 0xC0) != 0); | |
120 | lsLpt = ((t[0] & 0x2) != 0); | |
121 | lsHpt = ((t[0] & 0x20) != 0); | |
122 | usLpt = ((t[0] & 0x1 ) != 0); | |
123 | usHpt = ((t[0] & 0x10) != 0); | |
124 | ||
125 | sHpt <<= 1; | |
126 | lsLpt <<= 2; | |
127 | lsHpt <<= 3; | |
128 | usLpt <<= 4; | |
129 | usHpt <<= 5; | |
130 | ||
131 | fResponse = sLpt | sHpt | lsLpt | lsHpt | usLpt |usHpt; | |
d15ca731 | 132 | } |
133 | ||
134 | //___________________________________________ | |
135 | UShort_t AliMUONGlobalTriggerBoard::Algo(UShort_t i, UShort_t j, char *thres) | |
136 | { | |
c05673c9 | 137 | /// global trigger algorithm |
ad705f30 | 138 | TBits a(8), b(8); a.Set(8,&i); b.Set(8,&j); |
d15ca731 | 139 | |
140 | TBits trg1(2), trg2(2), trg(2); | |
141 | ||
ad705f30 | 142 | if (!strcmp(thres,"LPT")) |
d15ca731 | 143 | { |
144 | trg1[0] = a[2]; trg1[1] = a[3]; | |
145 | trg2[0] = b[2]; trg2[1] = b[3]; | |
146 | } | |
d15ca731 | 147 | else |
148 | { | |
ad705f30 | 149 | trg1[0] = a[6]; trg1[1] = a[7]; |
150 | trg2[0] = b[6]; trg2[1] = b[7]; | |
d15ca731 | 151 | } |
152 | ||
153 | TBits trgLS1(1), trgUS1(1), trgLS2(1), trgUS2(1), trgLS(1), trgUS(1); | |
154 | ||
ad705f30 | 155 | if (!strcmp(thres,"LPT")) |
d15ca731 | 156 | { |
157 | trgLS1[0] = a[1]; trgUS1[0] = a[0]; | |
158 | trgLS2[0] = b[1]; trgUS2[0] = b[0]; | |
159 | } | |
d15ca731 | 160 | else |
161 | { | |
ad705f30 | 162 | trgLS1[0] = a[5]; trgUS1[0] = a[4]; |
163 | trgLS2[0] = b[5]; trgUS2[0] = b[4]; | |
d15ca731 | 164 | } |
165 | ||
166 | trgLS[0] = ( trg1[0] & trg2[0] ) | ( trg1[1] & trg2[1] ) | trgLS1[0] | trgLS2[0]; | |
167 | trgUS[0] = ( trg1[0] & trg2[1] ) | ( trg1[1] & trg2[0] ) | trgUS1[0] | trgUS2[0]; | |
168 | ||
169 | trg[0] = trg1[0] | trg2[0]; | |
170 | trg[1] = trg1[1] | trg2[1]; | |
171 | ||
172 | TBits v(4); | |
173 | ||
174 | v[0] = trgUS[0]; | |
175 | v[1] = trgLS[0]; | |
176 | v[2] = trg[0]; | |
177 | v[3] = trg[1]; | |
178 | ||
179 | UShort_t rv = 0; | |
180 | v.Get(&rv); | |
181 | ||
182 | return rv; | |
183 | } | |
184 | ||
185 | //___________________________________________ | |
edd00c2d | 186 | void AliMUONGlobalTriggerBoard::Scan(Option_t*) const |
d15ca731 | 187 | { |
c05673c9 | 188 | /// print global trigger output |
ad705f30 | 189 | TBits w(8); w.Set(8,&fResponse); |
d15ca731 | 190 | |
191 | // TRG[1:0] | |
192 | // 00 noth | |
193 | // 01 negative track | |
194 | // 10 positive track | |
195 | // 11 undef | |
196 | ||
ad705f30 | 197 | Int_t iSP[2] = {0,0}, iSM[2] = {0,0}, iSU[2] = {0,0}; |
d15ca731 | 198 | |
199 | TBits a(2), n(2), p(2), u(2); | |
200 | ||
201 | UShort_t val; | |
202 | ||
203 | val = 1; n.Set(2,&val); | |
204 | val = 2; p.Set(2,&val); | |
205 | val = 3; u.Set(2,&val); | |
206 | ||
207 | a[0] = w[2]; | |
208 | a[1] = w[3]; | |
209 | ||
210 | if (a==p) iSP[0] = 1; | |
211 | else if (a==n) iSM[0] = 1; | |
212 | else if (a==u) iSU[0] = 1; | |
213 | ||
214 | a[0] = w[6]; | |
215 | a[1] = w[7]; | |
216 | ||
217 | if (a==p) iSP[1] = 1; | |
218 | else if (a==n) iSM[1] = 1; | |
219 | else if (a==u) iSU[1] = 1; | |
220 | ||
ad705f30 | 221 | Int_t iPU[2] = {w[0],w[4]}; |
222 | Int_t iPL[2] = {w[1],w[5]}; | |
d15ca731 | 223 | |
ad705f30 | 224 | printf("============================================\n"); |
225 | printf(" Global Trigger output Low pt High pt\n"); | |
d15ca731 | 226 | printf(" number of Single Plus :\t"); |
ad705f30 | 227 | for (Int_t i=0; i<2; i++) printf("%i\t",iSP[i]); |
d15ca731 | 228 | printf("\n"); |
229 | printf(" number of Single Minus :\t"); | |
ad705f30 | 230 | for (Int_t i=0; i<2; i++) printf("%i\t",iSM[i]); |
d15ca731 | 231 | printf("\n"); |
232 | printf(" number of Single Undefined :\t"); | |
ad705f30 | 233 | for (Int_t i=0; i<2; i++) printf("%i\t",iSU[i]); |
d15ca731 | 234 | printf("\n"); |
235 | printf(" number of UnlikeSign pair :\t"); | |
ad705f30 | 236 | for (Int_t i=0; i<2; i++) printf("%i\t",iPU[i]); |
d15ca731 | 237 | printf("\n"); |
238 | printf(" number of LikeSign pair :\t"); | |
ad705f30 | 239 | for (Int_t i=0; i<2; i++) printf("%i\t",iPL[i]); |
d15ca731 | 240 | printf("\n"); |
241 | printf("===================================================\n"); | |
242 | printf("\n"); | |
243 | } | |
244 |