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f9720615 | 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 | //////////////////////////////////////////////////////////////////////////// | |
19 | // | |
20 | // Pre-Trigger simulation | |
21 | // | |
22 | // Authors: F. Reidt (Felix.Reidt@cern.ch) | |
23 | // | |
24 | // This class is used to simulate the front end box behavior of the | |
25 | // pretrigger system. Digits of T0 and V0 are used as input. A threshold | |
26 | // discrimination, masking and first processing with look up tables is | |
27 | // done during the simulation process | |
28 | // | |
29 | //////////////////////////////////////////////////////////////////////////// | |
30 | ||
31 | #include <TClonesArray.h> | |
c93255fe | 32 | #include <TTree.h> |
f9720615 | 33 | |
34 | #include "AliRunLoader.h" | |
c93255fe | 35 | #include "AliLoader.h" |
f9720615 | 36 | #include "AliLog.h" |
37 | ||
c93255fe | 38 | #include "AliVZEROdigit.h" |
39 | #include "AliVZEROCalibData.h" | |
40 | #include "AliT0digit.h" | |
f9720615 | 41 | |
42 | #include "AliTRDptrgParam.h" | |
43 | #include "AliTRDptrgLUT.h" | |
44 | #include "AliTRDptrgFEB.h" | |
45 | ||
46 | ClassImp(AliTRDptrgFEB) | |
47 | ||
48 | //______________________________________________________________________________ | |
49 | AliTRDptrgFEB::AliTRDptrgFEB(AliRunLoader *rl) | |
50 | : TObject(), | |
51 | fRunLoader(rl), | |
52 | fParam(0), | |
53 | fLUTArray(0), | |
54 | fType(kUndefined), | |
55 | fOperatingMode(kDigits), | |
56 | fInputChannelCount(0), | |
57 | fPosition(kUnknown), | |
58 | fID(0), | |
59 | fThreshold(0) | |
60 | { | |
61 | // default constructor | |
e51605d9 | 62 | AliError("default ctor - not recommended"); |
f9720615 | 63 | } |
64 | ||
65 | //______________________________________________________________________________ | |
66 | AliTRDptrgFEB::AliTRDptrgFEB(AliRunLoader *rl, AliTRDptrgFEBType_t febType, | |
67 | AliTRDptrgOperatingMode_t operatingMode, | |
68 | AliTRDptrgFEBPosition_t position, Int_t id, | |
69 | AliTRDptrgParam *param) | |
70 | : TObject(), | |
71 | fRunLoader(rl), | |
72 | fParam(param), | |
73 | fLUTArray(0), | |
74 | fType(febType), | |
75 | fOperatingMode(operatingMode), | |
76 | fInputChannelCount(0), | |
77 | fPosition(position), | |
78 | fID(id), | |
79 | fThreshold(0x0) | |
80 | { | |
81 | // prefered constructor | |
82 | ||
83 | this->LoadParams(); // load configuration parameters | |
84 | ||
85 | } | |
86 | ||
87 | //______________________________________________________________________________ | |
88 | AliTRDptrgFEB::~AliTRDptrgFEB() | |
89 | { | |
90 | // destructor | |
91 | if (this->fParam == 0x0) { | |
92 | if (this->fThreshold != 0x0) { | |
93 | delete[] this->fThreshold; | |
94 | this->fThreshold = 0x0; | |
95 | } | |
96 | } | |
97 | // delete LUTArray | |
98 | this->fLUTArray.Delete(); | |
99 | } | |
100 | ||
101 | //______________________________________________________________________________ | |
102 | Int_t AliTRDptrgFEB::LoadDigits() | |
103 | { | |
104 | // loads T0 or V0 digits and discriminates them automatically | |
105 | ||
106 | if (this->fType == kVZERO) { | |
107 | // load V0's digits -------------------------------------------------------- | |
ce9fb876 | 108 | // behavior adapted for AliVZERODigitizer.cxx 40613 2010-04-22 09:57:15Z |
109 | ||
f9720615 | 110 | // get V0 run loader |
e51605d9 | 111 | AliLoader* loader = this->fRunLoader->GetLoader( "VZEROLoader" ); |
f9720615 | 112 | |
113 | if (!loader) { | |
dcf1edef | 114 | AliError("Cannot get VZERO loader"); |
f9720615 | 115 | return -1; |
116 | } | |
117 | loader->LoadDigits("READ"); | |
118 | TTree* vzeroDigitsTree = loader->TreeD(); | |
119 | ||
120 | if (!vzeroDigitsTree) { | |
dcf1edef | 121 | AliError("Cannot get the VZERO digit tree"); |
f9720615 | 122 | return -1; |
123 | } | |
124 | ||
125 | ||
126 | TClonesArray* vzeroDigits = NULL; | |
127 | TBranch* digitBranch = vzeroDigitsTree->GetBranch("VZERODigit"); | |
128 | digitBranch->SetAddress(&vzeroDigits); | |
129 | vzeroDigitsTree->GetEvent(0); | |
e51605d9 | 130 | |
131 | ||
f9720615 | 132 | Int_t nDigits = vzeroDigits->GetEntriesFast(); // get digit count |
133 | ||
134 | AliDebug(5, Form("Found a whole of %d digits", nDigits)); | |
135 | ||
136 | Int_t inputVector = 0x0; // Vector which is feed into the LUT | |
137 | ||
138 | for (Int_t iDigit=0; iDigit<nDigits; iDigit++) { | |
139 | // loop over all digits | |
140 | AliDebug(5, "Looping over digit"); | |
141 | AliVZEROdigit* digit = (AliVZEROdigit*)vzeroDigits->At(iDigit); | |
142 | ||
143 | Int_t pmNumber = digit->PMNumber(); | |
ce9fb876 | 144 | // Int_t board = pmNumber / 8; // changed in Version 40613 |
145 | Int_t feeBoard = AliVZEROCalibData::GetBoardNumber(pmNumber); | |
146 | Int_t board = feeBoard % 4; // feeBoard V0-A: 1-4; V0-C: 5-8 => board: 1-4 | |
147 | ||
f9720615 | 148 | Int_t channel = pmNumber % 8; |
ce9fb876 | 149 | |
150 | Int_t position = -1; | |
151 | if ((pmNumber >= 32) && (pmNumber <= 63)) { // V0-A (matched v40613) | |
152 | position = 1; // kA | |
153 | } | |
154 | else if ((pmNumber >= 0) && (pmNumber <= 31)) { // V0-C (matched v40613) | |
155 | position = 2; // kB | |
156 | } | |
157 | ||
158 | AliDebug(5, | |
159 | Form("pmNumber: %d; feeBoard: %d; board: %d; channel: %d; position %d", | |
160 | pmNumber, feeBoard, board, channel, position)); | |
161 | ||
162 | if (position == -1) { | |
163 | AliError("Wrong VZERO pmt position found"); | |
556707c3 | 164 | loader->UnloadDigits(); |
ce9fb876 | 165 | return -1; |
166 | } | |
f9720615 | 167 | |
168 | // check whether the digits belongs to the current FEB, otherwise omit it | |
169 | if ((position == this->fPosition) && (board == this->fID)) { | |
170 | AliDebug(5, "Found an digit corresponding to the current FEB"); | |
f9720615 | 171 | Float_t value = digit->ADC(); |
172 | AliDebug(5, Form("ADC value: %f\n", value)); | |
173 | Int_t channelBitMask = 0x01; | |
174 | // channel0 => 0x01; channel1=> 0x02; 2^(channel number) | |
175 | channelBitMask <<= channel; | |
176 | if (value >= this->fThreshold[channel]) { | |
177 | inputVector |= channelBitMask; | |
178 | AliDebug(5, | |
179 | Form("Threshold exceeded in channel %d, new inputVector 0x%x", | |
180 | channel, inputVector)); | |
181 | } | |
182 | } | |
183 | } | |
184 | ||
185 | AliDebug(5, Form("inputVector: 0x%x", inputVector)); | |
556707c3 | 186 | loader->UnloadDigits(); |
f9720615 | 187 | return inputVector; |
188 | } | |
189 | else if (this->fType == kTZERO) { | |
190 | // load T0's digits -------------------------------------------------------- | |
191 | AliLoader * fT0Loader = this->fRunLoader->GetLoader("T0Loader"); | |
192 | // AliT0digit *fDigits; | |
dcf1edef | 193 | if (!fT0Loader) { |
194 | AliError("Cannot get T0 loader"); | |
195 | return -1; | |
196 | } | |
197 | ||
f9720615 | 198 | fT0Loader->LoadDigits("READ"); |
199 | // Creating T0 data container | |
200 | ||
201 | TTree* treeD = fT0Loader->TreeD(); | |
202 | if (!treeD) { | |
203 | AliError("no digits tree"); | |
204 | return -1; | |
205 | } | |
206 | AliT0digit* digits = new AliT0digit(); | |
207 | TBranch *brDigits = treeD->GetBranch("T0"); | |
208 | ||
209 | if (brDigits) { | |
210 | brDigits->SetAddress(&digits); | |
211 | } | |
212 | else { | |
213 | AliError("Branch T0 DIGIT not found"); | |
214 | return -1; | |
215 | } | |
216 | brDigits->GetEntry(0); | |
217 | ||
218 | TArrayI qtc0(24); // Array must have 24 entries! | |
219 | TArrayI qtc1(24); // Array must have 24 entries! | |
220 | ||
221 | digits->GetQT0(qtc0); // baseline (reference level) | |
222 | digits->GetQT1(qtc1); // measurement value | |
223 | ||
224 | Int_t inputVector = 0x0; // vector to be fed into the look up table | |
225 | ||
226 | // PMT Positions | |
227 | // C: 0 to 11 | |
228 | // A: 12 to 23 | |
229 | // positions according to AliT0Digitizer.cxx Revision 37491 | |
230 | Int_t nStart = 0; | |
231 | if (this->fPosition == kC) { // C | |
232 | nStart = 0; | |
233 | } | |
234 | else if (this->fPosition == kA) { // A | |
235 | nStart = 12; | |
236 | } | |
237 | ||
238 | Int_t channelBitMask = 0x01; | |
239 | for (Int_t i = 0 + nStart; i < nStart + 12; i++) { | |
240 | //Int_t channelBitMask = 0x01; | |
241 | AliDebug(5, Form("channel: %d", i)); | |
242 | ||
243 | Int_t value = qtc1[i] - qtc0[i]; // calculate correct measurement value | |
244 | ||
245 | if (value > (Int_t)this->fThreshold[i - nStart]) { | |
f9720615 | 246 | inputVector |= channelBitMask; // Add bit |
247 | ||
248 | AliDebug(5, Form("Threshold exceeded in channel %d,", i)); | |
249 | AliDebug(5, Form("new inputVector 0x%x", inputVector)); | |
250 | AliDebug(5, Form("channelBitMask 0x%x", channelBitMask)); | |
251 | } | |
252 | channelBitMask <<= 1; // go on to the next channel | |
253 | } | |
254 | ||
f9720615 | 255 | delete digits; |
256 | return inputVector; | |
257 | } | |
258 | return -1; | |
259 | } | |
260 | ||
261 | //______________________________________________________________________________ | |
262 | Int_t AliTRDptrgFEB::LoadAndProcessHits() | |
263 | { | |
264 | // loads TO or VO hits and converts them to digits optimized for ptrg | |
265 | // afterwards the digits will be discriminated | |
266 | AliError("LoadAndProcessHits() - not yet implemented!\n"); | |
267 | if (this->fType == kVZERO) { | |
268 | return 0; | |
269 | } | |
270 | else if (this->fType == kTZERO) { | |
271 | return 0; | |
272 | } | |
273 | return -1; | |
274 | } | |
275 | ||
276 | //______________________________________________________________________________ | |
277 | Bool_t AliTRDptrgFEB::LoadParams() | |
278 | { | |
279 | // Load Parameters | |
280 | ||
281 | if (this->fParam == 0x0) { | |
282 | AliWarning("No paramater object specified - start loading defaults\n"); | |
283 | if (this->fType == kVZERO) { | |
284 | // initialize threshold | |
285 | this->fThreshold = new UInt_t[8]; | |
286 | for (Int_t i = 0; i < 8; i++) { | |
e51605d9 | 287 | this->fThreshold[i] = 10; |
f9720615 | 288 | } |
289 | // initialize LUTsoutputWidth=<value optimized out> | |
290 | AliTRDptrgLUT* lut = new AliTRDptrgLUT(); | |
291 | this->fLUTArray.AddLast(lut); | |
292 | lut = new AliTRDptrgLUT(); | |
293 | this->fLUTArray.AddLast(lut); | |
294 | // the following lines are only needed for test reasons | |
f9720615 | 295 | Int_t* initData = new Int_t[256]; // 2^8 |
f21d3ce9 | 296 | lut = dynamic_cast<AliTRDptrgLUT*>(this->fLUTArray.At(0)); |
297 | if (lut) { | |
298 | for (Int_t i = 0; i < 256; i++ ) { | |
299 | initData[i] = i; | |
300 | } | |
301 | lut->InitTable(8, 8, initData, kTRUE); // make copy of initData | |
f9720615 | 302 | } |
f9720615 | 303 | lut = dynamic_cast<AliTRDptrgLUT*>(this->fLUTArray.At(1)); |
f21d3ce9 | 304 | if (lut) { |
305 | for (Int_t i = 255; i >= 0; i--) { | |
306 | initData[255 - i] = i; // inverse ramp | |
307 | } | |
308 | lut->InitTable(8, 8, initData, kTRUE); | |
f9720615 | 309 | } |
83c48644 | 310 | delete [] initData; |
f9720615 | 311 | } |
312 | else { | |
313 | // initialize threshold | |
314 | this->fThreshold = new UInt_t[12]; | |
315 | for (Int_t i = 0; i < 12; i++) { | |
e51605d9 | 316 | this->fThreshold[i] = 10; |
f9720615 | 317 | } |
318 | ||
319 | // initialize LUTsoutputWidth=<value optimized out> | |
320 | AliTRDptrgLUT* lut = new AliTRDptrgLUT(); | |
321 | this->fLUTArray.AddLast(lut); | |
322 | lut = new AliTRDptrgLUT(); // this->fRunLoader | |
323 | this->fLUTArray.AddLast(lut); | |
324 | // the following lines are only needed for test reasons | |
325 | lut = dynamic_cast<AliTRDptrgLUT*>(this->fLUTArray.At(0)); | |
326 | Int_t* initData = new Int_t[4096]; // 2^12 | |
f21d3ce9 | 327 | if (lut) { |
328 | for (Int_t i = 0; i < 4096; i++ ) { | |
329 | initData[i] = i; | |
330 | } | |
331 | lut->InitTable(12, 12, initData, kTRUE); // make a copy of the table | |
f9720615 | 332 | } |
f9720615 | 333 | lut = dynamic_cast<AliTRDptrgLUT*>(this->fLUTArray.At(1)); |
f21d3ce9 | 334 | if (lut) { |
335 | //for (Int_t i = 4095; i >= 0; i--) { | |
336 | for (Int_t i = 4096; i > 0; i--) { | |
337 | initData[4096 - i] = i; // inverse ramp | |
338 | } | |
339 | lut->InitTable(12, 12, initData, kTRUE); // make a copy of the table | |
f9720615 | 340 | } |
83c48644 | 341 | delete [] initData; |
f9720615 | 342 | } |
343 | return false; | |
344 | } | |
345 | else { | |
346 | // load parameters from object | |
347 | if (this->fType == kVZERO) { | |
348 | // threshold | |
349 | this->fThreshold = | |
350 | this->fParam->GetFEBV0Thresholds(this->fPosition, (this->fID - 1)); | |
351 | ||
352 | // look up tables | |
353 | // 1 | |
354 | AliTRDptrgLUT* LUT = new AliTRDptrgLUT(); | |
355 | LUT->InitTable(8, 8, this->fParam->GetFEBV0LUT(this->fPosition, | |
356 | (this->fID - 1), | |
357 | 0), kFALSE); | |
358 | // do not make a copy of the table due to performance reasons | |
359 | this->fLUTArray.AddLast(LUT); | |
360 | ||
361 | // 2 | |
362 | LUT = new AliTRDptrgLUT(); | |
363 | LUT->InitTable(8, 8, this->fParam->GetFEBV0LUT(this->fPosition, | |
364 | (this->fID - 1), | |
365 | 1), kFALSE); | |
366 | // do not make a copy of the table due to performance reasons | |
367 | this->fLUTArray.AddLast(LUT); | |
368 | } | |
369 | else { | |
370 | // threshold | |
371 | this->fThreshold = | |
372 | this->fParam->GetFEBT0Thresholds(this->fPosition); | |
373 | ||
374 | // look up tables | |
375 | // 1 | |
376 | AliTRDptrgLUT* LUT = new AliTRDptrgLUT(); | |
377 | LUT->InitTable(12, 12, fParam->GetFEBT0LUT(this->fPosition, 0), kFALSE); | |
378 | // do not make a copy of the table due to performance reasosn | |
379 | this->fLUTArray.AddLast(LUT); | |
380 | ||
381 | // 2 | |
382 | LUT = new AliTRDptrgLUT(); | |
383 | LUT->InitTable(12, 12, fParam->GetFEBT0LUT(this->fPosition, 1), kFALSE); | |
384 | // do not make a copy of the table due to performance reasosn | |
385 | this->fLUTArray.AddLast(LUT); | |
386 | } | |
387 | return true; | |
388 | } | |
389 | ||
390 | return false; | |
391 | } | |
392 | ||
393 | //______________________________________________________________________________ | |
394 | Int_t* AliTRDptrgFEB::Simulate() | |
395 | { | |
396 | // simulates the FEB behavior and returns a 2 bit ouput | |
397 | // (least significant bits) | |
398 | ||
399 | Int_t *result = new Int_t; | |
400 | (*result) = -1; | |
401 | if (this->fOperatingMode == kDigits) { | |
402 | Int_t inputVector = this->LoadDigits(); | |
403 | delete result; // delete error return value | |
404 | ||
405 | // perform look up | |
406 | Int_t nLUTs = this->fLUTArray.GetEntriesFast(); // get LUT count | |
407 | result = new Int_t[nLUTs + 1]; // generate new return array | |
408 | result[0] = nLUTs; // storage array length in the first array value | |
409 | for (Int_t iLUT = 0; iLUT < nLUTs; iLUT++) { | |
410 | // process the return value for each LUT and store the result in the array | |
411 | AliDebug(4, Form("FEB: (pos=%d,id=%d,lut=%d,vector=0x%x)", | |
412 | this->fPosition, this->fID, iLUT, inputVector)); | |
413 | ||
f21d3ce9 | 414 | AliTRDptrgLUT *lutTmp = dynamic_cast<AliTRDptrgLUT*>(this->fLUTArray[iLUT]); |
415 | if (lutTmp) { | |
416 | result[iLUT + 1] = lutTmp->LookUp(inputVector); | |
417 | } | |
f9720615 | 418 | AliDebug(4, Form("FEB result[%d] = 0x%x",(iLUT + 1),result[iLUT + 1])); |
419 | } | |
420 | } | |
421 | else if (this->fOperatingMode == kHits) { | |
422 | return result; | |
423 | } | |
424 | return result; | |
425 | } |