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e802be3e | 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 | **************************************************************************/ | |
e802be3e | 15 | /* $Id$ */ |
c2fc1258 | 16 | /** @file AliFMDRawReader.cxx |
17 | @author Christian Holm Christensen <cholm@nbi.dk> | |
18 | @date Mon Mar 27 12:45:23 2006 | |
19 | @brief Class to read raw data | |
02a27b50 | 20 | @ingroup FMD_rec |
c2fc1258 | 21 | */ |
e802be3e | 22 | //____________________________________________________________________ |
23 | // | |
24 | // Class to read ADC values from a AliRawReader object. | |
25 | // | |
7684b53c | 26 | // This class uses the AliFMDRawStreamer class to read the ALTRO |
27 | // formatted data. | |
28 | // | |
29 | // +-------+ | |
30 | // | TTask | | |
31 | // +-------+ | |
32 | // ^ | |
33 | // | | |
34 | // +-----------------+ <<references>> +--------------+ | |
35 | // | AliFMDRawReader |<>----------------| AliRawReader | | |
36 | // +-----------------+ +--------------+ | |
37 | // | ^ | |
38 | // | <<uses>> | | |
39 | // V | | |
40 | // +-----------------+ <<uses>> | | |
41 | // | AliFMDRawStream |------------------------+ | |
42 | // +-----------------+ | |
43 | // | | |
44 | // V | |
45 | // +----------------+ | |
46 | // | AliAltroStream | | |
47 | // +----------------+ | |
48 | // | |
f95a63c4 | 49 | // #include <AliLog.h> // ALILOG_H |
50 | #include "AliFMDDebug.h" // Better debug macros | |
1a1fdef7 | 51 | #include "AliFMDParameters.h" // ALIFMDPARAMETERS_H |
e802be3e | 52 | #include "AliFMDDigit.h" // ALIFMDDIGIT_H |
faf80567 | 53 | #include "AliFMDSDigit.h" // ALIFMDSDIGIT_H |
e802be3e | 54 | #include "AliFMDRawStream.h" // ALIFMDRAWSTREAM_H |
3effc6e7 | 55 | #include "AliRawReader.h" // ALIRAWREADER_H |
e802be3e | 56 | #include "AliFMDRawReader.h" // ALIFMDRAWREADER_H |
3effc6e7 | 57 | #include "AliFMDDebug.h" |
58 | #include "AliFMDCalibSampleRate.h" | |
59 | #include "AliFMDCalibStripRange.h" | |
b995fc28 | 60 | #include "AliFMDAltroMapping.h" |
c2fc1258 | 61 | // #include "AliFMDAltroIO.h" // ALIFMDALTROIO_H |
3effc6e7 | 62 | #include <TArrayS.h> // ROOT_TArrayS |
1a1fdef7 | 63 | #include <TTree.h> // ROOT_TTree |
64 | #include <TClonesArray.h> // ROOT_TClonesArray | |
3effc6e7 | 65 | #include <TString.h> |
7af3df7f | 66 | #include <iostream> |
67 | #include <climits> | |
02a27b50 | 68 | // #include <iomanip> |
e802be3e | 69 | |
70 | //____________________________________________________________________ | |
925e6570 | 71 | ClassImp(AliFMDRawReader) |
1a1fdef7 | 72 | #if 0 |
73 | ; // This is here to keep Emacs for indenting the next line | |
74 | #endif | |
e802be3e | 75 | |
76 | //____________________________________________________________________ | |
1a1fdef7 | 77 | AliFMDRawReader::AliFMDRawReader(AliRawReader* reader, TTree* tree) |
e802be3e | 78 | : TTask("FMDRawReader", "Reader of Raw ADC values from the FMD"), |
1a1fdef7 | 79 | fTree(tree), |
80 | fReader(reader), | |
faf80567 | 81 | // fSampleRate(1), |
3effc6e7 | 82 | fData(0), |
f38b1653 | 83 | fNbytes(0), |
84 | fSeen() | |
e802be3e | 85 | { |
56b1929b | 86 | // Default CTOR |
faf80567 | 87 | for (Int_t i = 0; i < 3; i++) { |
88 | fSampleRate[i] = 0; | |
89 | fZeroSuppress[i] = kFALSE; | |
90 | fNoiseFactor[i] = 1; | |
91 | } | |
e802be3e | 92 | } |
93 | ||
c2fc1258 | 94 | //____________________________________________________________________ |
95 | void | |
96 | AliFMDRawReader::Exec(Option_t*) | |
97 | { | |
02a27b50 | 98 | // Read the data |
c2fc1258 | 99 | TClonesArray* array = new TClonesArray("AliFMDDigit"); |
100 | if (!fTree) { | |
101 | AliError("No tree"); | |
102 | return; | |
103 | } | |
104 | fTree->Branch("FMD", &array); | |
3effc6e7 | 105 | |
106 | ||
c2fc1258 | 107 | ReadAdcs(array); |
108 | Int_t nWrite = fTree->Fill(); | |
f95a63c4 | 109 | AliFMDDebug(1, ("Got a grand total of %d digits, wrote %d bytes to tree", |
bf37515f | 110 | array->GetEntriesFast(), nWrite)); |
c2fc1258 | 111 | } |
112 | ||
b5014544 | 113 | //____________________________________________________________________ |
114 | Bool_t | |
faf80567 | 115 | AliFMDRawReader::NextSample(UShort_t& det, Char_t& rng, UShort_t& sec, |
116 | UShort_t& str, UShort_t& sam, UShort_t& rat, | |
117 | Short_t& adc, Bool_t& zs, UShort_t& fac) | |
b5014544 | 118 | { |
119 | // Scan current event for next signal. It returns kFALSE when | |
120 | // there's no more data in the event. | |
121 | static AliAltroRawStream stream(fReader); // = 0; | |
122 | static AliFMDParameters* pars = 0; | |
123 | static AliFMDAltroMapping* map = 0; | |
124 | static Int_t ddl = -1; | |
faf80567 | 125 | // static UInt_t rate = 0; |
b5014544 | 126 | static UShort_t tdet = 0; |
127 | static Char_t trng = '\0'; | |
128 | static UShort_t tsec = 0; | |
129 | static Short_t tstr = 0; | |
130 | static Short_t bstr = -1; | |
faf80567 | 131 | static Short_t tsam = -1; |
132 | static UInt_t trate = 0; | |
b5014544 | 133 | static Int_t hwaddr = -1; |
134 | static UShort_t stripMin = 0; | |
135 | static UShort_t stripMax = 0; // 127; | |
136 | static UShort_t preSamp = 0; // 14+5; | |
137 | if (stream.GetDDLNumber() < 0) { | |
138 | fReader->Select("FMD"); | |
139 | ||
140 | // Reset "seen" array | |
141 | // const UShort_t kUShortMax = (1 << 16) - 1; | |
142 | // fSeen.Reset(kUShortMax); | |
143 | ||
144 | pars = AliFMDParameters::Instance(); | |
145 | map = pars->GetAltroMap(); | |
146 | // stream = new AliAltroRawStream(fReader); | |
147 | ||
148 | AliFMDDebug(5, ("Setting %d word headers", | |
149 | pars->HasCompleteHeader() ? 8 : 7)); | |
150 | stream.SetShortDataHeader(!pars->HasCompleteHeader()); | |
151 | stream.SetNoAltroMapping(kFALSE); | |
152 | ||
153 | // Reset variables | |
154 | ddl = -1; | |
faf80567 | 155 | trate = 0; |
b5014544 | 156 | tdet = 0; |
157 | trng = '\0'; | |
158 | tsec = 0; | |
159 | tstr = 0; | |
faf80567 | 160 | tsam = -1; |
b5014544 | 161 | hwaddr = -1; |
162 | } | |
163 | do { | |
164 | Bool_t next = stream.Next(); | |
165 | if (!next) { | |
166 | // if (stream) delete stream; | |
167 | // stream = 0; | |
168 | return kFALSE; | |
169 | } | |
170 | Int_t thisDDL = stream.GetDDLNumber(); | |
171 | AliFMDDebug(10, ("RCU @ DDL %d", thisDDL)); | |
172 | if (thisDDL != ddl) { | |
faf80567 | 173 | ddl = thisDDL; |
174 | fZeroSuppress[ddl] = zs = stream.GetZeroSupp(); | |
175 | fNoiseFactor[ddl] = fac = stream.GetNPostsamples(); | |
176 | fSampleRate[ddl] = trate = 0; // stream.GetNPresamples(); | |
177 | tdet = map->DDL2Detector(ddl); | |
b5014544 | 178 | AliFMDDebug(10, ("RCU @ DDL %d zero suppression: %s",ddl, zs?"yes":"no")); |
179 | AliFMDDebug(10, ("RCU @ DDL %d noise factor: %d", ddl,fac)); | |
faf80567 | 180 | AliFMDDebug(10, ("RCU @ DDL %d sample rate: %d", ddl, trate)); |
b5014544 | 181 | } |
182 | Int_t thisAddr = stream.GetHWAddress(); | |
183 | AliFMDDebug(10, ("RCU @ DDL %d, Address 0x%03x", ddl, thisAddr)); | |
184 | if (thisAddr != hwaddr) { | |
185 | hwaddr = thisAddr; | |
186 | UShort_t board, chip, channel; | |
187 | map->ChannelAddress(hwaddr, board, chip, channel); | |
188 | map->Channel2StripBase(board, chip, channel, trng, tsec, bstr); | |
189 | AliFMDDebug(10, ("0x%04x/0x%03x maps to FMD%d%c[%2d]-%3d", | |
190 | ddl, hwaddr, tdet, trng, tsec, bstr)); | |
191 | ||
192 | stripMin = pars->GetMinStrip(tdet, trng, tsec, bstr); | |
193 | stripMax = pars->GetMaxStrip(tdet, trng, tsec, bstr); | |
194 | preSamp = pars->GetPreSamples(tdet, trng, tsec, bstr); | |
faf80567 | 195 | if (trate == 0) |
196 | fSampleRate[ddl] = trate = pars->GetSampleRate(tdet, trng, tsec, bstr); | |
b5014544 | 197 | AliFMDDebug(10, ("RCU @ DDL %d, Address 0x%03x sample rate: %d", |
faf80567 | 198 | ddl, hwaddr, trate)); |
b5014544 | 199 | |
200 | Int_t nChAddrMismatch = stream.GetNChAddrMismatch(); | |
201 | Int_t nChLenMismatch = stream.GetNChLengthMismatch(); | |
202 | if (nChAddrMismatch != 0) | |
203 | AliWarning(Form("Got %d channels with address mis-matches for 0x%03x", | |
204 | nChAddrMismatch, hwaddr)); | |
205 | if (nChLenMismatch != 0) | |
206 | AliWarning(Form("Got %d channels with length mis-matches for 0x%03x", | |
207 | nChLenMismatch, hwaddr)); | |
208 | } | |
209 | // Get the signal | |
210 | adc = stream.GetSignal(); | |
211 | ||
212 | // Sanity check - if the total bunch length is less than 1, then | |
213 | // read until we get the next bunch. | |
214 | Int_t b = stream.GetTimeLength(); | |
215 | if (b < 1) { | |
216 | AliWarning(Form("Bunch length %0d is less than 0 for " | |
217 | "DDL %4d address 0x%03x", b, ddl, hwaddr)); | |
218 | continue; | |
219 | } | |
220 | // Sanity check - if the current time is less than 0, then read | |
221 | // until we get a new bunch. | |
222 | Int_t t = stream.GetTime(); | |
223 | if (t < 0) { | |
224 | AliWarning(Form("Time %0d is less than 0 for DDL %4d address 0x%03x", | |
225 | t, ddl, hwaddr)); | |
226 | continue; | |
227 | } | |
228 | ||
229 | Short_t strOff = 0; | |
230 | UShort_t samp = 0; | |
faf80567 | 231 | map->Timebin2Strip(tsec, t, preSamp, trate, strOff, samp); |
b5014544 | 232 | tstr = bstr + strOff; |
faf80567 | 233 | tsam = samp; |
b5014544 | 234 | AliFMDDebug(20, ("0x%04x/0x%03x/%04d maps to FMD%d%c[%2d,%3d]-%d", |
235 | ddl, hwaddr, t, tdet, trng, tsec, tstr, samp)); | |
236 | ||
b5014544 | 237 | // Local strip number to channel |
238 | Short_t l = (tstr > bstr ? tstr - bstr : bstr - tstr); | |
239 | AliFMDDebug(10, ("Checking if strip %d in range [%d,%d]", | |
240 | l, stripMin, stripMax)); | |
241 | if (l < stripMin || l > stripMax) { | |
242 | AliFMDDebug(5, ("VA channel %3d (t: %4d) of DDL %4d address 0x%03x " | |
243 | "is out of range (%3d->%3d)", | |
244 | l, t, ddl, hwaddr, stripMin, stripMax)); | |
245 | continue; | |
246 | } | |
247 | ||
248 | ||
249 | det = tdet; | |
250 | rng = trng; | |
251 | sec = tsec; | |
252 | str = tstr; | |
faf80567 | 253 | sam = tsam; |
254 | rat = trate; | |
b5014544 | 255 | // adc = stream.GetSignal(); |
256 | ||
257 | break; | |
258 | } while (true); | |
259 | return kTRUE; | |
260 | } | |
261 | ||
faf80567 | 262 | //____________________________________________________________________ |
263 | Bool_t | |
264 | AliFMDRawReader::NextSignal(UShort_t& det, Char_t& rng, | |
265 | UShort_t& sec, UShort_t& str, | |
266 | Short_t& adc, Bool_t& zs, | |
267 | UShort_t& fac) | |
268 | { | |
269 | ||
270 | do { | |
271 | UShort_t samp, rate; | |
272 | if (!NextSample(det, rng, sec, str, samp, rate, adc, zs, fac)) | |
273 | return kFALSE; | |
274 | ||
275 | Bool_t take = kFALSE; | |
276 | switch (rate) { | |
277 | case 1: take = kTRUE; break; | |
278 | case 2: if (samp == 1) take = kTRUE; break; | |
279 | case 3: if (samp == 1) take = kTRUE; break; | |
280 | case 4: if (samp == 2) take = kTRUE; break; | |
281 | default: if (samp == rate-2) take = kTRUE; break; | |
282 | } | |
283 | if (!take) continue; | |
284 | break; | |
285 | } while (true); | |
286 | return kTRUE; | |
287 | } | |
288 | ||
289 | //____________________________________________________________________ | |
290 | Bool_t | |
291 | AliFMDRawReader::SelectSample(UShort_t samp, UShort_t rate) | |
292 | { | |
293 | Bool_t take = kFALSE; | |
294 | switch (rate) { | |
295 | case 1: take = kTRUE; break; | |
296 | case 2: if (samp == 1) take = kTRUE; break; | |
297 | case 3: if (samp == 1) take = kTRUE; break; | |
298 | case 4: if (samp == 2) take = kTRUE; break; | |
299 | default: if (samp == rate-2) take = kTRUE; break; | |
300 | } | |
301 | ||
302 | return take; | |
303 | } | |
304 | ||
c2fc1258 | 305 | #if 1 |
306 | //____________________________________________________________________ | |
307 | Bool_t | |
308 | AliFMDRawReader::ReadAdcs(TClonesArray* array) | |
309 | { | |
fd8d0298 | 310 | |
311 | fReader->Select("FMD"); | |
c2fc1258 | 312 | // Read raw data into the digits array, using AliFMDAltroReader. |
313 | if (!array) { | |
314 | AliError("No TClonesArray passed"); | |
315 | return kFALSE; | |
316 | } | |
f38b1653 | 317 | const UShort_t kUShortMax = (1 << 16) - 1; |
318 | fSeen.Reset(kUShortMax); | |
319 | ||
d56f2b53 | 320 | // if (!fReader->ReadHeader()) { |
321 | // AliError("Couldn't read header"); | |
322 | // return kFALSE; | |
323 | // } | |
c2fc1258 | 324 | // Get sample rate |
b995fc28 | 325 | AliFMDParameters* pars = AliFMDParameters::Instance(); |
326 | AliFMDAltroMapping* map = pars->GetAltroMap(); | |
327 | AliFMDRawStream input(fReader); | |
9a090ccd | 328 | AliFMDDebug(5, ("Setting 7 word headers")); |
625d7886 | 329 | input.SetShortDataHeader(!pars->HasCompleteHeader()); |
c2fc1258 | 330 | |
331 | UShort_t stripMin = 0; | |
f38b1653 | 332 | UShort_t stripMax = 0; // 127; |
333 | UShort_t preSamp = 0; // 14+5; | |
5cf05dbb | 334 | |
335 | Int_t oldddl = -1; | |
c2fc1258 | 336 | UInt_t ddl = 0; |
faf80567 | 337 | // UInt_t rate = 0; |
c2fc1258 | 338 | UInt_t last = 0; |
339 | UInt_t hwaddr = 0; | |
340 | // Data array is approx twice the size needed. | |
341 | UShort_t data[2048]; | |
5cf05dbb | 342 | for (size_t i = 0; i < 2048; i++) data[i] = 0; // kUShortMax; |
2b893216 | 343 | |
625d7886 | 344 | Bool_t isGood = kTRUE; |
345 | while (isGood) { | |
346 | isGood = input.ReadChannel(ddl, hwaddr, last, data); | |
7868d9e2 | 347 | // if (!isGood) break; |
7af3df7f | 348 | if (ddl >= UINT_MAX /* UInt_t(-1) */) { |
fd8d0298 | 349 | AliFMDDebug(5, ("At end of event with %d digits", |
350 | array->GetEntriesFast())); | |
351 | break; | |
352 | } | |
7af3df7f | 353 | if (UInt_t(oldddl) != ddl) { |
5cf05dbb | 354 | fZeroSuppress[ddl] = input.GetZeroSupp(); |
355 | AliFMDDebug(20, ("RCU @ DDL %d zero suppression: %s", | |
356 | ddl, (fZeroSuppress[ddl] ? "yes" : "no"))); | |
2b893216 | 357 | |
5cf05dbb | 358 | // WARNING: We store the noise factor in the 2nd baseline |
359 | // filters excluded post samples, since we'll never use that | |
360 | // mode. | |
361 | fNoiseFactor[ddl] = input.GetNPostsamples(); | |
362 | AliFMDDebug(20, ("RCU @ DDL %d noise factor: %d", ddl,fNoiseFactor[ddl])); | |
363 | ||
faf80567 | 364 | // WARNING: We store the noise factor in the 2nd baseline |
365 | // filters excluded post samples, since we'll never use that | |
366 | // mode. | |
367 | fSampleRate[ddl] = input.GetNPretriggerSamples(); | |
368 | AliFMDDebug(20, ("RCU @ DDL %d Sample rate: %d", ddl,fNoiseFactor[ddl])); | |
369 | ||
5cf05dbb | 370 | Int_t nChAddrMismatch = input.GetNChAddrMismatch(); |
371 | Int_t nChLenMismatch = input.GetNChLengthMismatch(); | |
372 | if (nChAddrMismatch != 0) | |
373 | AliWarning(Form("Got %d channels with address mis-matches for 0x%03x", | |
374 | nChAddrMismatch, hwaddr)); | |
375 | if (nChLenMismatch != 0) | |
376 | AliWarning(Form("Got %d channels with length mis-matches for 0x%03x", | |
377 | nChLenMismatch, hwaddr)); | |
378 | oldddl = ddl; | |
379 | } | |
380 | // AliFMDDebug(5, ("Read channel 0x%x of size %d", hwaddr, last)); | |
f38b1653 | 381 | |
b995fc28 | 382 | UShort_t det, sec, samp, board, chip, channel; |
1f12303f | 383 | Short_t strbase; |
384 | Char_t ring; | |
fd8d0298 | 385 | |
b995fc28 | 386 | |
387 | if (map->DDL2Detector(ddl) < 0) break; | |
388 | det = map->DDL2Detector(ddl); | |
389 | map->ChannelAddress(hwaddr, board, chip, channel); | |
390 | if (!map->Channel2StripBase(board, chip, channel, ring, sec, strbase)) { | |
1f12303f | 391 | AliError(Form("Failed to get detector id from DDL %d, " |
392 | "hardware address 0x%03x", ddl, hwaddr)); | |
393 | continue; | |
394 | } | |
faf80567 | 395 | AliFMDDebug(5, ("Board: 0x%02x, Altro: 0x%x, Channel: 0x%x, Length: %4d", |
7af3df7f | 396 | board, chip, channel, last)); |
1f12303f | 397 | |
398 | stripMin = pars->GetMinStrip(det, ring, sec, strbase); | |
399 | stripMax = pars->GetMaxStrip(det, ring, sec, strbase); | |
400 | preSamp = pars->GetPreSamples(det, ring, sec, strbase); | |
faf80567 | 401 | if (fSampleRate[ddl] == 0) |
402 | fSampleRate[ddl] = pars->GetSampleRate(det, ring, sec, strbase); | |
c2fc1258 | 403 | |
404 | // Loop over the `timebins', and make the digits | |
405 | for (size_t i = 0; i < last; i++) { | |
f38b1653 | 406 | // if (i < preSamp) continue; |
5cf05dbb | 407 | AliFMDDebug(15, ("0x%04x/0x%03x/%04d %4d", ddl, hwaddr, i, data[i])); |
f38b1653 | 408 | |
b995fc28 | 409 | Short_t stroff = 0; |
faf80567 | 410 | map->Timebin2Strip(sec, i, preSamp, fSampleRate[ddl], stroff, samp); |
b995fc28 | 411 | Short_t str = strbase + stroff; |
1f12303f | 412 | |
413 | AliFMDDebug(10, ("0x%04x/0x%03x/%04d maps to FMD%d%c[%2d,%3d]-%d", | |
414 | ddl, hwaddr, i, det, ring, sec, str, samp)); | |
f38b1653 | 415 | if (str < 0) { |
416 | AliFMDDebug(8, ("Got presamples at timebin %d", i)); | |
5cf05dbb | 417 | data[i] = 0; // Reset cache |
f38b1653 | 418 | continue; |
419 | } | |
420 | ||
faf80567 | 421 | Short_t lstrip = (i - preSamp) / fSampleRate[ddl] + stripMin; |
f38b1653 | 422 | |
423 | AliFMDDebug(15, ("Checking if strip %d (%d) in range [%d,%d]", | |
424 | lstrip, str, stripMin, stripMax)); | |
425 | if (lstrip < stripMin || lstrip > stripMax) { | |
426 | AliFMDDebug(5, ("FMD%d%c[%02d,%03d]-%d out of range (%3d->%3d)", | |
427 | det, ring, sec, samp, str, stripMin, stripMax)); | |
5cf05dbb | 428 | data[i] = 0; // Reset cache |
f38b1653 | 429 | continue; |
430 | } | |
faf80567 | 431 | // Possibly do pedestal subtraction of signal |
432 | Int_t counts = data[i]; | |
433 | ||
f38b1653 | 434 | |
435 | // Check the cache of indicies | |
436 | Int_t idx = fSeen(det, ring, sec, str); | |
437 | if (idx == kUShortMax) { | |
438 | // We haven't seen this strip yet. | |
439 | fSeen(det, ring, sec, str) = idx = array->GetEntriesFast(); | |
440 | AliFMDDebug(7,("making digit for FMD%d%c[%2d,%3d]-%d from timebin %4d", | |
441 | det, ring, sec, str, samp, i)); | |
442 | new ((*array)[idx]) AliFMDDigit(det, ring, sec, str); | |
443 | } | |
faf80567 | 444 | AliFMDBaseDigit* digit = static_cast<AliFMDBaseDigit*>(array->At(idx)); |
f38b1653 | 445 | AliFMDDebug(10, |
faf80567 | 446 | ("Setting FMD%d%c[%2d,%3d]-%d from timebin %4d=%4d (%4d)", |
447 | det, ring, sec, str, samp, i, counts, data[i])); | |
448 | digit->SetCount(samp, counts); | |
5cf05dbb | 449 | data[i] = 0; // Reset cache |
c2fc1258 | 450 | } |
451 | } | |
452 | return kTRUE; | |
453 | } | |
454 | #else | |
1e8f773e | 455 | //____________________________________________________________________ |
d760ea03 | 456 | Bool_t |
457 | AliFMDRawReader::ReadAdcs(TClonesArray* array) | |
1e8f773e | 458 | { |
459 | // Read raw data into the digits array, using AliFMDAltroReader. | |
d760ea03 | 460 | if (!array) { |
461 | AliError("No TClonesArray passed"); | |
462 | return kFALSE; | |
463 | } | |
d56f2b53 | 464 | // if (!fReader->ReadHeader()) { |
465 | // AliError("Couldn't read header"); | |
466 | // return kFALSE; | |
467 | // } | |
1e8f773e | 468 | // Get sample rate |
469 | AliFMDParameters* pars = AliFMDParameters::Instance(); | |
470 | ||
471 | // Select FMD DDL's | |
362c9d61 | 472 | fReader->Select("FMD"); |
1e8f773e | 473 | |
474 | UShort_t stripMin = 0; | |
475 | UShort_t stripMax = 127; | |
476 | UShort_t preSamp = 0; | |
477 | ||
478 | do { | |
479 | UChar_t* cdata; | |
480 | if (!fReader->ReadNextData(cdata)) break; | |
481 | size_t nchar = fReader->GetDataSize(); | |
362c9d61 | 482 | UShort_t ddl = fReader->GetDDLID(); |
c2fc1258 | 483 | UShort_t rate = 0; |
f95a63c4 | 484 | AliFMDDebug(1, ("Reading %d bytes (%d 10bit words) from %d", |
1e8f773e | 485 | nchar, nchar * 8 / 10, ddl)); |
486 | // Make a stream to read from | |
487 | std::string str((char*)(cdata), nchar); | |
488 | std::istringstream s(str); | |
489 | // Prep the reader class. | |
490 | AliFMDAltroReader r(s); | |
491 | // Data array is approx twice the size needed. | |
492 | UShort_t data[2048], hwaddr, last; | |
493 | while (r.ReadChannel(hwaddr, last, data) > 0) { | |
f95a63c4 | 494 | AliFMDDebug(5, ("Read channel 0x%x of size %d", hwaddr, last)); |
1e8f773e | 495 | UShort_t det, sec, str; |
496 | Char_t ring; | |
497 | if (!pars->Hardware2Detector(ddl, hwaddr, det, ring, sec, str)) { | |
498 | AliError(Form("Failed to detector id from DDL %d " | |
499 | "and hardware address 0x%x", ddl, hwaddr)); | |
500 | continue; | |
501 | } | |
c2fc1258 | 502 | rate = pars->GetSampleRate(det, ring, sec, str); |
503 | stripMin = pars->GetMinStrip(det, ring, sec, str); | |
504 | stripMax = pars->GetMaxStrip(det, ring, sec, str); | |
f95a63c4 | 505 | AliFMDDebug(5, ("DDL 0x%04x, address 0x%03x maps to FMD%d%c[%2d,%3d]", |
1e8f773e | 506 | ddl, hwaddr, det, ring, sec, str)); |
507 | ||
508 | // Loop over the `timebins', and make the digits | |
509 | for (size_t i = 0; i < last; i++) { | |
510 | if (i < preSamp) continue; | |
d760ea03 | 511 | Int_t n = array->GetEntries(); |
1e8f773e | 512 | UShort_t curStr = str + stripMin + i / rate; |
513 | if ((curStr-str) > stripMax) { | |
514 | AliError(Form("Current strip is %d but DB says max is %d", | |
515 | curStr, stripMax)); | |
516 | } | |
f95a63c4 | 517 | AliFMDDebug(5, ("making digit for FMD%d%c[%2d,%3d] from sample %4d", |
1e8f773e | 518 | det, ring, sec, curStr, i)); |
519 | new ((*array)[n]) AliFMDDigit(det, ring, sec, curStr, data[i], | |
520 | (rate >= 2 ? data[i+1] : 0), | |
521 | (rate >= 3 ? data[i+2] : 0)); | |
522 | if (rate >= 2) i++; | |
523 | if (rate >= 3) i++; | |
524 | } | |
525 | if (r.IsBof()) break; | |
526 | } | |
527 | } while (true); | |
d760ea03 | 528 | return kTRUE; |
529 | } | |
530 | ||
531 | ||
532 | ||
1e8f773e | 533 | // This is the old method, for comparison. It's really ugly, and far |
534 | // too convoluted. | |
e802be3e | 535 | //____________________________________________________________________ |
536 | void | |
537 | AliFMDRawReader::Exec(Option_t*) | |
538 | { | |
56b1929b | 539 | // Read raw data into the digits array |
d56f2b53 | 540 | // if (!fReader->ReadHeader()) { |
541 | // Error("ReadAdcs", "Couldn't read header"); | |
542 | // return; | |
543 | // } | |
e802be3e | 544 | |
1a1fdef7 | 545 | Int_t n = 0; |
546 | TClonesArray* array = new TClonesArray("AliFMDDigit"); | |
547 | fTree->Branch("FMD", &array); | |
548 | ||
8f6ee336 | 549 | // Get sample rate |
550 | AliFMDParameters* pars = AliFMDParameters::Instance(); | |
362c9d61 | 551 | fSampleRate = pars->GetSampleRate(0); |
8f6ee336 | 552 | |
e802be3e | 553 | // Use AliAltroRawStream to read the ALTRO format. No need to |
554 | // reinvent the wheel :-) | |
555 | AliFMDRawStream input(fReader, fSampleRate); | |
556 | // Select FMD DDL's | |
362c9d61 | 557 | fReader->Select("FMD"); |
e802be3e | 558 | |
559 | Int_t oldDDL = -1; | |
560 | Int_t count = 0; | |
561 | UShort_t detector = 1; // Must be one here | |
562 | UShort_t oldDetector = 0; | |
563 | Bool_t next = kTRUE; | |
564 | ||
565 | // local Cache | |
566 | TArrayI counts(10); | |
567 | counts.Reset(-1); | |
568 | ||
569 | // Loop over data in file | |
570 | while (next) { | |
571 | next = input.Next(); | |
572 | ||
573 | count++; | |
574 | Int_t ddl = fReader->GetDDLID(); | |
f95a63c4 | 575 | AliFMDDebug(10, ("Current DDL is %d", ddl)); |
e802be3e | 576 | if (ddl != oldDDL || input.IsNewStrip() || !next) { |
577 | // Make a new digit, if we have some data (oldDetector == 0, | |
578 | // means that we haven't really read anything yet - that is, | |
579 | // it's the first time we get here). | |
580 | if (oldDetector > 0) { | |
581 | // Got a new strip. | |
f95a63c4 | 582 | AliFMDDebug(10, ("Add a new strip: FMD%d%c[%2d,%3d] " |
e802be3e | 583 | "(current: FMD%d%c[%2d,%3d])", |
584 | oldDetector, input.PrevRing(), | |
585 | input.PrevSector() , input.PrevStrip(), | |
586 | detector , input.Ring(), input.Sector(), | |
587 | input.Strip())); | |
1a1fdef7 | 588 | new ((*array)[n]) AliFMDDigit(oldDetector, |
589 | input.PrevRing(), | |
590 | input.PrevSector(), | |
591 | input.PrevStrip(), | |
592 | counts[0], counts[1], counts[2]); | |
593 | n++; | |
e802be3e | 594 | #if 0 |
595 | AliFMDDigit* digit = | |
596 | static_cast<AliFMDDigit*>(fFMD->Digits()-> | |
597 | UncheckedAt(fFMD->GetNdigits()-1)); | |
598 | #endif | |
599 | } | |
600 | ||
601 | if (!next) { | |
f95a63c4 | 602 | AliFMDDebug(10, ("Read %d channels for FMD%d", |
e802be3e | 603 | count + 1, detector)); |
604 | break; | |
605 | } | |
606 | ||
607 | ||
608 | // If we got a new DDL, it means we have a new detector. | |
609 | if (ddl != oldDDL) { | |
610 | if (detector != 0) | |
f95a63c4 | 611 | AliFMDDebug(10, ("Read %d channels for FMD%d", count + 1, detector)); |
e802be3e | 612 | // Reset counts, and update the DDL cache |
613 | count = 0; | |
614 | oldDDL = ddl; | |
615 | // Check that we're processing a FMD detector | |
616 | Int_t detId = fReader->GetDetectorID(); | |
362c9d61 | 617 | if (detId != (AliDAQ::DetectorID("FMD"))) { |
1e8f773e | 618 | AliError(Form("Detector ID %d != %d", |
362c9d61 | 619 | detId, (AliDAQ::DetectorID("FMD")))); |
e802be3e | 620 | break; |
621 | } | |
622 | // Figure out what detector we're deling with | |
623 | oldDetector = detector; | |
624 | switch (ddl) { | |
625 | case 0: detector = 1; break; | |
626 | case 1: detector = 2; break; | |
627 | case 2: detector = 3; break; | |
628 | default: | |
1e8f773e | 629 | AliError(Form("Unknown DDL 0x%x for FMD", ddl)); |
e802be3e | 630 | return; |
631 | } | |
f95a63c4 | 632 | AliFMDDebug(10, ("Reading ADCs for 0x%x - That is FMD%d", |
e802be3e | 633 | fReader->GetEquipmentId(), detector)); |
634 | } | |
635 | counts.Reset(-1); | |
636 | } | |
637 | ||
638 | counts[input.Sample()] = input.Count(); | |
639 | ||
f95a63c4 | 640 | AliFMDDebug(10, ("ADC of FMD%d%c[%2d,%3d] += %d", |
e802be3e | 641 | detector, input.Ring(), input.Sector(), |
642 | input.Strip(), input.Count())); | |
643 | oldDetector = detector; | |
644 | } | |
1a1fdef7 | 645 | fTree->Fill(); |
e802be3e | 646 | return; |
647 | ||
648 | } | |
1e8f773e | 649 | #endif |
3effc6e7 | 650 | //____________________________________________________________________ |
651 | Bool_t AliFMDRawReader::ReadSODevent(AliFMDCalibSampleRate* sampleRate, | |
652 | AliFMDCalibStripRange* stripRange, | |
653 | TArrayS &pulseSize, | |
f38b1653 | 654 | TArrayS &pulseLength) |
655 | { | |
3effc6e7 | 656 | |
657 | AliFMDDebug(0, ("Start of SOD/EOD")); | |
658 | ||
659 | UInt_t shift_clk[18]; | |
660 | UInt_t sample_clk[18]; | |
661 | UInt_t strip_low[18]; | |
662 | UInt_t strip_high[18]; | |
663 | UInt_t pulse_size[18]; | |
664 | UInt_t pulse_length[18]; | |
b995fc28 | 665 | AliFMDParameters* param = AliFMDParameters::Instance(); |
666 | AliFMDAltroMapping* map = param->GetAltroMap(); | |
3effc6e7 | 667 | |
668 | while(fReader->ReadNextData(fData)) { | |
669 | ||
670 | Int_t ddl = fReader->GetDDLID(); | |
671 | Int_t detID = fReader->GetDetectorID(); | |
672 | AliFMDDebug(0, (" From reader: DDL number is %d , det ID is %d",ddl,detID)); | |
673 | ||
674 | fNbytes = fReader->GetDataSize(); | |
675 | ||
676 | ULong_t nWords = GetNwords(); | |
677 | UInt_t trailerLast = Get32bitWord(nWords); | |
678 | AliFMDDebug(20, (" # Bytes: %d, # Words: %d, Last word: 0x%08x", | |
f38b1653 | 679 | fNbytes, nWords, trailerLast)); |
3effc6e7 | 680 | if ((trailerLast & 0xFFFF0000) != 0xAAAA0000) { |
681 | AliWarning(Form("Last word 0x%08x does not match RCU II trailer", | |
682 | trailerLast)); | |
683 | return kFALSE; | |
684 | } | |
685 | ||
f38b1653 | 686 | // 7 last bits is size of trailer |
687 | ULong_t nTrailerWords = trailerLast & 0x7f; | |
3effc6e7 | 688 | ULong_t nPayloadWords = Get32bitWord(nWords - nTrailerWords+1); |
f38b1653 | 689 | |
3effc6e7 | 690 | AliFMDDebug(20, (" # trailer words: %d, # payload words: %d", |
f38b1653 | 691 | nTrailerWords, nPayloadWords)); |
3effc6e7 | 692 | |
693 | ||
694 | for (ULong_t i = 1; i <= nPayloadWords ; i++) { | |
695 | UInt_t payloadWord = Get32bitWord(i); | |
76d06ffa | 696 | |
f38b1653 | 697 | // address is only 24 bit |
698 | UInt_t address = (0xffffff & payloadWord); | |
699 | UInt_t type = ((address >> 21) & 0xf); | |
700 | UInt_t error = ((address >> 20) & 0x1); | |
701 | UInt_t bcast = ((address >> 18) & 0x1); | |
702 | UInt_t bc_not_altro = ((address >> 17) & 0x1); | |
703 | UInt_t board = ((address >> 12) & 0x1f); | |
704 | UInt_t instruction = 0; | |
705 | UInt_t chip = 0; | |
706 | UInt_t channel = 0; | |
707 | if(bc_not_altro) | |
708 | instruction = address & 0xfff; | |
709 | else { | |
710 | chip = ((address >> 9) & 0x7); | |
711 | channel = ((address >> 5) & 0x5); | |
712 | instruction = (address & 0x1f); | |
713 | } | |
76d06ffa | 714 | |
f38b1653 | 715 | Bool_t readDataWord = kFALSE; |
716 | switch(type) { | |
717 | case 0x0: // Fec read | |
718 | readDataWord = kTRUE; | |
719 | case 0x1: // Fec cmd | |
720 | case 0x2: // Fec write | |
721 | i++; | |
722 | break; | |
723 | case 0x4: // Loop | |
724 | case 0x5: // Wait | |
725 | break; | |
726 | case 0x6: // End sequence | |
727 | case 0x7: // End Mem | |
728 | i = nPayloadWords + 1; | |
729 | break; | |
730 | default: | |
731 | break; | |
732 | } | |
76d06ffa | 733 | |
f38b1653 | 734 | //Don't read unless we have a FEC_RD |
735 | if(!readDataWord) continue; | |
736 | ||
737 | UInt_t dataWord = Get32bitWord(i); | |
738 | UInt_t data = (0xFFFFF & dataWord) ; | |
739 | //UInt_t data = (0xFFFF & dataWord) ; | |
3effc6e7 | 740 | |
f38b1653 | 741 | if(error) { |
742 | AliWarning(Form("error bit detected at Word 0x%06x; " | |
743 | "error % d, type %d, bc_not_altro %d, " | |
744 | "bcast %d, board 0x%02x, chip 0x%x, " | |
745 | "channel 0x%02x, instruction 0x%03x", | |
746 | address, error, type, bc_not_altro, | |
747 | bcast,board,chip,channel,instruction)); | |
748 | //process error | |
749 | continue; | |
750 | } | |
3effc6e7 | 751 | |
752 | ||
f38b1653 | 753 | switch(instruction) { |
3effc6e7 | 754 | |
f38b1653 | 755 | case 0x01: break; // First ADC T |
756 | case 0x02: break; // I 3.3 V | |
757 | case 0x03: break; // I 2.5 V altro digital | |
758 | case 0x04: break; // I 2.5 V altro analog | |
759 | case 0x05: break; // I 2.5 V VA | |
760 | case 0x06: break; // First ADC T | |
761 | case 0x07: break; // I 3.3 V | |
762 | case 0x08: break; // I 2.5 V altro digital | |
763 | case 0x09: break; // I 2.5 V altro analog | |
764 | case 0x0A: break; // I 2.5 V VA | |
765 | case 0x2D: break; // Second ADC T | |
766 | case 0x2E: break; // I 1.5 V VA | |
767 | case 0x2F: break; // I -2.0 V | |
768 | case 0x30: break; // I -2.0 V VA | |
769 | case 0x31: break; // 2.5 V Digital driver | |
770 | case 0x32: break; // Second ADC T | |
771 | case 0x33: break; // I 1.5 V VA | |
772 | case 0x34: break; // I -2.0 V | |
773 | case 0x35: break; // I -2.0 V VA | |
774 | case 0x36: break; // 2.5 V Digital driver | |
775 | case 0x37: break; // Third ADC T | |
776 | case 0x38: break; // Temperature sens. 1 | |
777 | case 0x39: break; // Temperature sens. 2 | |
778 | case 0x3A: break; // U 2.5 altro digital (m) | |
779 | case 0x3B: break; // U 2.5 altro analog (m) | |
780 | case 0x3C: break; // Third ADC T | |
781 | case 0x3D: break; // Temperature sens. 1 | |
782 | case 0x3E: break; // Temperature sens. 2 | |
783 | case 0x3F: break; // U 2.5 altro digital (m) | |
784 | case 0x40: break; // U 2.5 altro analog (m) | |
785 | case 0x41: break; // Forth ADC T | |
786 | case 0x42: break; // U 2.5 VA (m) | |
787 | case 0x43: break; // U 1.5 VA (m) | |
788 | case 0x44: break; // U -2.0 VA (m) | |
789 | case 0x45: break; // U -2.0 (m) | |
790 | case 0x46: break; // Forth ADC T | |
791 | case 0x47: break; // U 2.5 VA (m) | |
792 | case 0x48: break; // U 1.5 VA (m) | |
793 | case 0x49: break; // U -2.0 VA (m) | |
794 | case 0x4A: break; // U -2.0 (m) | |
795 | // Counters | |
796 | case 0x0B: break; // L1 trigger CouNTer | |
797 | case 0x0C: break; // L2 trigger CouNTer | |
798 | case 0x0D: break; // Sampling CLK CouNTer | |
799 | case 0x0E: break; // DSTB CouNTer | |
800 | // Test mode | |
801 | case 0x0F: break; // Test mode word | |
802 | case 0x10: break; // Undersampling ratio. | |
803 | // Configuration and status | |
804 | case 0x11: break; // Config/Status Register 0 | |
805 | case 0x12: break; // Config/Status Register 1 | |
806 | case 0x13: break; // Config/Status Register 2 | |
807 | case 0x14: break; // Config/Status Register 3 | |
808 | case 0x15: break; // Free | |
809 | // Comands: | |
810 | case 0x16: break; // Latch L1, L2, SCLK Counters | |
811 | case 0x17: break; // Clear counters | |
812 | case 0x18: break; // Clear CSR1 | |
813 | case 0x19: break; // rstb ALTROs | |
814 | case 0x1A: break; // rstb BC | |
815 | case 0x1B: break; // Start conversion | |
816 | case 0x1C: break; // Scan event length | |
817 | case 0x1D: break; // Read event length | |
818 | case 0x1E: break; // Start test mode | |
819 | case 0x1F: break; // Read acquisition memory | |
820 | // FMD | |
821 | case 0x20: break; // FMDD status | |
822 | case 0x21: break; // L0 counters | |
823 | case 0x22: break; // FMD: Wait to hold | |
824 | case 0x23: break; // FMD: L1 timeout | |
825 | case 0x24: break; // FMD: L2 timeout | |
826 | case 0x25: // FMD: Shift clk | |
827 | shift_clk[board] = ((data >> 8 ) & 0xFF); | |
828 | break; | |
829 | case 0x26: // FMD: Strips | |
830 | strip_low[board] = ((data >> 0 ) & 0xFF); | |
831 | strip_high[board] = ((data >> 8 ) & 0xFF); | |
832 | break; | |
833 | case 0x27: // FMD: Cal pulse | |
834 | pulse_size[board] = ((data >> 8 ) & 0xFF); | |
835 | break; | |
836 | case 0x28: break; // FMD: Shape bias | |
837 | case 0x29: break; // FMD: Shape ref | |
838 | case 0x2A: break; // FMD: Preamp ref | |
839 | case 0x2B: // FMD: Sample clk | |
840 | sample_clk[board] = ((data >> 8 ) & 0xFF); | |
841 | break; | |
842 | case 0x2C: break; // FMD: Commands | |
843 | case 0x4B: // FMD: Cal events | |
844 | pulse_length[board] = ((data >> 0 ) & 0xFF); | |
845 | break; | |
846 | default: break; | |
3effc6e7 | 847 | |
f38b1653 | 848 | } |
849 | AliFMDDebug(50, ("instruction 0x%x, dataword 0x%x", | |
850 | instruction,dataWord)); | |
3effc6e7 | 851 | } |
852 | ||
f38b1653 | 853 | UShort_t det,sector; |
854 | Short_t strip; | |
3effc6e7 | 855 | Char_t ring; |
76d06ffa | 856 | |
3effc6e7 | 857 | const UInt_t boards[4] = {0,1,16,17}; |
858 | for(Int_t i=0;i<4;i++) { | |
f38b1653 | 859 | if(ddl==0 && (i==1 || i==3)) continue; |
860 | ||
3effc6e7 | 861 | UInt_t chip =0, channel=0; |
b995fc28 | 862 | det = map->DDL2Detector(ddl); |
863 | map->Channel2StripBase(boards[i], chip, channel, ring, sector, strip); | |
76d06ffa | 864 | |
865 | UInt_t samplerate = 1; | |
76d06ffa | 866 | if(sample_clk[boards[i]] == 0) { |
f38b1653 | 867 | if(ddl == 0) { |
868 | Int_t sample1 = sample_clk[boards[0]]; | |
869 | Int_t sample2 = sample_clk[boards[2]]; | |
870 | if(sample1) sample_clk[boards[i]] = sample1; | |
871 | else sample_clk[boards[i]] = sample2; | |
872 | } | |
873 | else { | |
874 | Int_t sample1 = sample_clk[boards[0]]; | |
875 | Int_t sample2 = sample_clk[boards[1]]; | |
876 | Int_t sample3 = sample_clk[boards[2]]; | |
877 | Int_t sample4 = sample_clk[boards[3]]; | |
878 | Int_t agreement = 0; | |
879 | if(sample1 == sample2) agreement++; | |
880 | if(sample1 == sample3) agreement++; | |
881 | if(sample1 == sample4) agreement++; | |
882 | if(sample2 == sample3) agreement++; | |
883 | if(sample2 == sample4) agreement++; | |
884 | if(sample3 == sample4) agreement++; | |
76d06ffa | 885 | |
f38b1653 | 886 | Int_t idx = 0; |
887 | if(i<3) idx = i+1; | |
888 | else idx = i-1; | |
889 | if(agreement == 3) { | |
890 | sample_clk[boards[i]] = sample_clk[boards[idx]]; | |
891 | shift_clk[boards[i]] = shift_clk[boards[idx]]; | |
892 | strip_low[boards[i]] = strip_low[boards[idx]]; | |
893 | strip_high[boards[i]] = strip_high[boards[idx]]; | |
894 | pulse_length[boards[i]] = pulse_length[boards[idx]]; | |
895 | pulse_size[boards[i]] = pulse_size[boards[idx]]; | |
896 | AliFMDDebug(0, ("Vote taken for ddl %d, board 0x%x", | |
897 | ddl,boards[i])); | |
76d06ffa | 898 | } |
f38b1653 | 899 | } |
76d06ffa | 900 | } |
901 | ||
3effc6e7 | 902 | if(sample_clk[boards[i]]) |
f38b1653 | 903 | samplerate = shift_clk[boards[i]]/sample_clk[boards[i]]; |
3effc6e7 | 904 | sampleRate->Set(det,ring,sector,0,samplerate); |
f38b1653 | 905 | stripRange->Set(det,ring,sector,0, |
906 | strip_low[boards[i]],strip_high[boards[i]]); | |
3effc6e7 | 907 | |
76d06ffa | 908 | AliFMDDebug(20, ("det %d, ring %c, ",det,ring)); |
f38b1653 | 909 | pulseLength.AddAt(pulse_length[boards[i]], |
910 | GetHalfringIndex(det,ring,boards[i]/16)); | |
911 | pulseSize.AddAt(pulse_size[boards[i]], | |
912 | GetHalfringIndex(det,ring,boards[i]/16)); | |
76d06ffa | 913 | |
3effc6e7 | 914 | |
76d06ffa | 915 | |
916 | AliFMDDebug(20, (": Board: 0x%02x\n" | |
f38b1653 | 917 | "\tstrip_low %3d, strip_high %3d\n" |
918 | "\tshift_clk %3d, sample_clk %3d\n" | |
919 | "\tpulse_size %3d, pulse_length %3d", | |
920 | boards[i], | |
921 | strip_low[boards[i]], strip_high[boards[i]], | |
922 | shift_clk[boards[i]], sample_clk[boards[i]], | |
923 | pulse_size[boards[i]],pulse_length[boards[i]])); | |
3effc6e7 | 924 | } |
925 | ||
926 | } | |
927 | ||
928 | AliFMDParameters::Instance()->SetSampleRate(sampleRate); | |
929 | AliFMDParameters::Instance()->SetStripRange(stripRange); | |
930 | ||
931 | AliFMDDebug(0, ("End of SOD/EOD")); | |
932 | ||
7af3df7f | 933 | return kTRUE; |
3effc6e7 | 934 | } |
935 | //____________________________________________________________________ | |
936 | ||
937 | UInt_t AliFMDRawReader::Get32bitWord(Int_t idx) | |
938 | { | |
939 | // This method returns the 32 bit word at a given | |
940 | // position inside the raw data payload. | |
941 | // The 'index' points to the beginning of the next word. | |
942 | // The method is supposed to be endian (platform) | |
943 | // independent. | |
944 | if (!fData) { | |
945 | AliFatal("Raw data paylod buffer is not yet initialized !"); | |
946 | } | |
947 | ||
948 | Int_t index = 4*idx; | |
949 | ||
950 | if (index < 4) { | |
951 | // fRawReader->AddFatalErrorLog(k32bitWordReadErr,Form("pos = %d",index)); | |
952 | // PrintDebug(); | |
953 | AliWarning(Form("Invalid raw data payload position (%d) !",index)); | |
954 | } | |
955 | ||
956 | UInt_t word = 0; | |
76d06ffa | 957 | |
3effc6e7 | 958 | word = fData[--index] << 24; |
959 | word |= fData[--index] << 16; | |
960 | word |= fData[--index] << 8; | |
961 | word |= fData[--index] << 0 ; | |
e802be3e | 962 | |
3effc6e7 | 963 | return word; |
964 | } | |
965 | //_____________________________________________________________________ | |
f38b1653 | 966 | Int_t AliFMDRawReader::GetHalfringIndex(UShort_t det, Char_t ring, |
967 | UShort_t board) { | |
3effc6e7 | 968 | |
969 | UShort_t iring = (ring == 'I' ? 1 : 0); | |
970 | ||
971 | Int_t index = (((det-1) << 2) | (iring << 1) | (board << 0)); | |
972 | ||
76d06ffa | 973 | return index-2; |
3effc6e7 | 974 | |
975 | } | |
e802be3e | 976 | //____________________________________________________________________ |
977 | // | |
978 | // EOF | |
979 | // |