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1e8f773e | 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 | **************************************************************************/ | |
1e8f773e | 15 | /* $Id$ */ |
c2fc1258 | 16 | /** @file AliFMDAltroIO.cxx |
17 | @author Christian Holm Christensen <cholm@nbi.dk> | |
18 | @date Sun Mar 26 18:27:06 2006 | |
19 | @brief Altro Input/Output | |
20 | */ | |
1e8f773e | 21 | //____________________________________________________________________ |
22 | // | |
23 | // Mapping of ALTRO hardware channel to detector coordinates | |
24 | // | |
25 | #include "AliFMDAltroIO.h" | |
f7ee745b | 26 | #include <AliRawDataHeaderSim.h> |
1e8f773e | 27 | #include <AliRawReader.h> |
28 | #include "AliLog.h" | |
29 | #include <iostream> | |
30 | #include <iomanip> | |
31 | #define PRETTY_HEX(N,X) \ | |
32 | " 0x" << std::setfill('0') << std::setw(N) << std::hex << X \ | |
33 | << std::setfill(' ') << std::dec | |
34 | ||
35 | //==================================================================== | |
36 | ClassImp(AliFMDAltroIO) | |
37 | #if 0 | |
38 | ; // This is here to keep Emacs for indenting the next line | |
39 | #endif | |
40 | ||
41 | //____________________________________________________________________ | |
42 | const AliFMDAltroIO::W40_t AliFMDAltroIO::fgkTrailerMask = | |
43 | ((AliFMDAltroIO::W40_t(0x2aaa) << 26) + (AliFMDAltroIO::W40_t(0xa) << 12)); | |
44 | ||
45 | //____________________________________________________________________ | |
46 | AliFMDAltroIO::AliFMDAltroIO() | |
47 | : fBuffer(0), fIBuffer(0) | |
48 | {} | |
49 | ||
50 | //____________________________________________________________________ | |
51 | const char* | |
52 | AliFMDAltroIO::ErrorString(Int_t err) const | |
53 | { | |
54 | switch (err) { | |
55 | case kNoError: return "No error"; break; | |
56 | case kBadFile: return "Bad state after open/close file"; break; | |
57 | case kBadBits: return "Bad bit offset specified"; break; | |
58 | case kBadRead: return "Bad state after reading from file"; break; | |
59 | case kBadWrite: return "Bad state after writing to file"; break; | |
60 | case kBadSeek: return "Bad state after seeking in file"; break; | |
61 | case kBadTell: return "Could not tell position in file"; break; | |
62 | case kBadTrailer: return "Bad trailer 40 bit word in file"; break; | |
63 | case kBadFill: return "Bad fill word in file"; break; | |
64 | } | |
65 | return "Unknown"; | |
66 | } | |
67 | ||
68 | ||
69 | //____________________________________________________________________ | |
70 | AliFMDAltroIO::W40_t | |
6e79feeb | 71 | AliFMDAltroIO::ConcatW40(UShort_t n, const W10_t& w) const |
1e8f773e | 72 | { |
73 | if (n > 3) return -kBadBits; | |
74 | return W40_t(w & 0x3ff) << (10 * n); | |
75 | } | |
76 | ||
77 | //____________________________________________________________________ | |
78 | AliFMDAltroIO::W10_t | |
6e79feeb | 79 | AliFMDAltroIO::ExtractW10(UShort_t n, const W40_t w) const |
1e8f773e | 80 | { |
81 | if (n > 3) return -kBadBits; | |
82 | return (w >> (10 * n)) & 0x3ff; | |
83 | } | |
84 | ||
85 | //==================================================================== | |
86 | ClassImp(AliFMDAltroReader) | |
87 | #if 0 | |
88 | ; // This is here to keep Emacs for indenting the next line | |
89 | #endif | |
90 | ||
91 | //____________________________________________________________________ | |
92 | AliFMDAltroReader::AliFMDAltroReader(std::istream& stream) | |
93 | : fInput(stream) | |
94 | // : fBuffer(buffer), fCurrent(n / 10 * sizeof(char)) | |
95 | { | |
96 | // fInput.open(filename); | |
97 | if (!fInput) throw -kBadFile; | |
98 | fBegin = fInput.tellg(); | |
99 | if (fInput.bad()) throw -kBadTell; | |
100 | fInput.seekg(0, std::ios_base::end); | |
101 | if (fInput.bad()) throw -kBadSeek; | |
102 | fCurrent = fInput.tellg(); | |
103 | if (fInput.bad()) throw -kBadTell; | |
104 | #if 0 | |
105 | fInput.seekg(fBegin); | |
6e79feeb | 106 | UShort_t i = 0; |
1e8f773e | 107 | do { |
108 | W40_t w = 0; | |
109 | fInput.read((char*)&w, 5); | |
110 | std::cout << std::setw(6) << i << ": " << PRETTY_HEX(10, w) << std::endl; | |
111 | i++; | |
112 | } while (!fInput.eof()); | |
113 | fInput.seekg(fCurrent); | |
114 | #endif | |
115 | } | |
116 | ||
117 | //____________________________________________________________________ | |
118 | Int_t | |
119 | AliFMDAltroReader::ReadChannel(UShort_t& board, UShort_t& chip, | |
120 | UShort_t& channel, UShort_t& last, | |
121 | UShort_t* data) | |
122 | { | |
123 | UShort_t hwaddr; | |
124 | Int_t ret = ReadChannel(hwaddr, last, data); | |
125 | board = (hwaddr >> 7) & 0x1f; | |
126 | chip = (hwaddr >> 4) & 0x3; | |
127 | channel = hwaddr & 0xf; | |
128 | return ret; | |
129 | } | |
130 | ||
131 | //____________________________________________________________________ | |
132 | Int_t | |
133 | AliFMDAltroReader::ReadChannel(UShort_t& hwaddr, UShort_t& last, | |
134 | UShort_t* data) | |
135 | { | |
136 | Int_t ret, tmp; | |
f95a63c4 | 137 | AliFMDDebug(15, ("Reading a channel")); |
1e8f773e | 138 | if ((ret = ExtractTrailer(hwaddr, last)) < 0) { |
139 | AliError(Form("Failed to read trailer: %s", ErrorString(-ret))); | |
140 | return ret; | |
141 | } | |
f95a63c4 | 142 | AliFMDDebug(15, ("Now extracting bunches from %d 10 bit words", last)); |
1e8f773e | 143 | tmp = ExtractBunches(last, data); |
144 | if (tmp < 0) { | |
145 | AliError(Form("Failed to read bunches: %s", ErrorString(-tmp))); | |
146 | return tmp; | |
147 | } | |
148 | ret += tmp; | |
149 | last = (last == 0 ? 0 : last - 2); | |
150 | return ret; | |
151 | } | |
152 | ||
153 | //____________________________________________________________________ | |
154 | Int_t | |
155 | AliFMDAltroReader::ExtractTrailer(UShort_t& hwaddr, UShort_t& last) | |
156 | { | |
f95a63c4 | 157 | AliFMDDebug(15, ("Extracting trailer")); |
1e8f773e | 158 | W40_t trailer = GetNextW40(); |
159 | if (trailer < 0) { | |
160 | AliError(Form("Trailer 0x%x is bad: %s", trailer, ErrorString(-trailer))); | |
161 | return trailer; | |
162 | } | |
163 | if (!IsTrailer(trailer)) { | |
164 | AliError(Form("Bad trailer: 0x%08x", trailer)); | |
165 | return -kBadTrailer; | |
166 | } | |
167 | last = (trailer >> 16) & 0x3ff; | |
168 | hwaddr = (trailer & 0xfff); | |
169 | return 4; | |
170 | } | |
171 | ||
172 | //____________________________________________________________________ | |
173 | Int_t | |
174 | AliFMDAltroReader::ExtractBunches(UShort_t last, UShort_t* data) | |
175 | { | |
176 | Int_t ret; | |
177 | if ((ret = ExtractFillWords(last)) < 0) { | |
178 | AliError(Form("Failed to read fill words: %s", ErrorString(-ret))); | |
179 | return ret; | |
180 | } | |
181 | while (last > 0) { | |
182 | Int_t tmp = ExtractBunch(data); | |
183 | if (tmp <= 0) { | |
184 | AliError(Form("Failed to extract bunch at %d: %s", | |
185 | last, ErrorString(-tmp))); | |
186 | return tmp; | |
187 | } | |
188 | ret += tmp; | |
189 | last -= tmp; | |
190 | } | |
191 | return ret; | |
192 | } | |
193 | ||
194 | //____________________________________________________________________ | |
195 | Int_t | |
196 | AliFMDAltroReader::ExtractFillWords(UShort_t last) | |
197 | { | |
198 | // Number of fill words | |
6e79feeb | 199 | UShort_t nFill = (last % 4 == 0 ? 0 : 4 - last % 4); |
1e8f773e | 200 | // Read the fill words |
6e79feeb | 201 | for (UShort_t i = 3; i >= 4 - nFill; i--) { |
1e8f773e | 202 | W10_t f = GetNextW10(); |
203 | if (f != 0x2aa) return -kBadFill; | |
204 | } | |
205 | return nFill; | |
206 | } | |
207 | ||
208 | //____________________________________________________________________ | |
209 | Int_t | |
210 | AliFMDAltroReader::ExtractBunch(UShort_t* data) | |
211 | { | |
212 | Int_t ret = 0; | |
213 | W10_t l = GetNextW10(); | |
214 | if (l < 0) { | |
215 | AliError(Form("Failed to read bunch length: %s", ErrorString(-l))); | |
216 | return l; | |
217 | } | |
218 | W10_t t = GetNextW10(); | |
219 | if (t < 0) { | |
220 | AliError(Form("Failed to read bunch time: %s", ErrorString(-t))); | |
221 | return t; | |
222 | } | |
223 | ret += 2; | |
224 | for (Int_t i = 2; i < l; i++) { | |
225 | W10_t s = GetNextW10(); | |
226 | if (s < 0) { | |
227 | AliError(Form("Failed to read bunch data: %s", ErrorString(-s))); | |
228 | return 2; | |
229 | } | |
f95a63c4 | 230 | AliFMDDebug(50, ("Assigning to data[%d - (%d - 1)] = 0x%X", t, i, s)); |
1e8f773e | 231 | data[t - (i-1)] = s; |
232 | ret++; | |
233 | } | |
234 | return ret; | |
235 | } | |
236 | ||
237 | //____________________________________________________________________ | |
238 | Bool_t | |
239 | AliFMDAltroReader::IsTrailer(W40_t x) | |
240 | { | |
241 | return ((x & fgkTrailerMask) == fgkTrailerMask); | |
242 | } | |
243 | ||
244 | //____________________________________________________________________ | |
245 | Bool_t | |
246 | AliFMDAltroReader::IsBof() | |
247 | { | |
248 | return fCurrent == fBegin; | |
249 | } | |
250 | ||
251 | //____________________________________________________________________ | |
252 | Int_t | |
253 | AliFMDAltroReader::ReadW40() | |
254 | { | |
255 | fInput.seekg(fCurrent-std::istream::pos_type(5)); | |
256 | if (fInput.bad()) return -kBadSeek; | |
257 | fCurrent = fInput.tellg(); | |
258 | if (fInput.bad()) return -kBadTell; | |
259 | fInput.read((char*)&fBuffer, 5 * sizeof(char)); | |
260 | if (fInput.bad()) return -kBadRead; | |
261 | fIBuffer = 4; | |
f95a63c4 | 262 | AliFMDDebug(15, (" 0x%03x 0x%03x 0x%03x 0x%03x 0x%010x %6d", |
1e8f773e | 263 | ExtractW10(3, fBuffer), ExtractW10(2, fBuffer), |
264 | ExtractW10(1, fBuffer), ExtractW10(0, fBuffer), | |
265 | fBuffer, fCurrent)); | |
266 | return fCurrent; | |
267 | } | |
268 | ||
269 | //____________________________________________________________________ | |
270 | AliFMDAltroIO::W10_t | |
271 | AliFMDAltroReader::GetNextW10() | |
272 | { | |
273 | if (fIBuffer <= 0) { | |
274 | Int_t ret; | |
275 | if ((ret = ReadW40()) < 0) return ret; | |
276 | } | |
277 | fIBuffer--; | |
278 | W10_t w10 = ExtractW10(fIBuffer, fBuffer); | |
279 | return w10; | |
280 | } | |
281 | ||
282 | //____________________________________________________________________ | |
283 | AliFMDAltroIO::W40_t | |
284 | AliFMDAltroReader::GetNextW40() | |
285 | { | |
286 | W40_t w40 = 0; | |
287 | for (Int_t i = 3; i >= 0; i--) { | |
288 | W10_t tmp = GetNextW10(); | |
289 | W40_t bits = ConcatW40(i, tmp); | |
290 | if (bits < 0) return bits; | |
291 | w40 += bits; | |
292 | } | |
293 | return w40; | |
294 | } | |
295 | ||
296 | //==================================================================== | |
297 | ClassImp(AliFMDAltroWriter) | |
298 | #if 0 | |
299 | ; // This is here to keep Emacs for indenting the next line | |
300 | #endif | |
301 | ||
302 | //____________________________________________________________________ | |
303 | AliFMDAltroWriter::AliFMDAltroWriter(std::ostream& stream) | |
304 | : fThreshold(0), fTotal(0), fOutput(stream) | |
305 | { | |
f95a63c4 | 306 | AliFMDDebug(15, ("New AliFMDAltroWriter object")); |
1e8f773e | 307 | fTime = 0; |
308 | fLength = 0; | |
309 | fLast = 0; | |
310 | // Write a dummy header | |
311 | fHeader = fOutput.tellp(); | |
312 | if (fOutput.bad()) throw -kBadTell; | |
f7ee745b | 313 | AliRawDataHeaderSim header; |
1e8f773e | 314 | fOutput.write((char*)(&header), sizeof(header)); |
315 | if (fOutput.bad()) throw -kBadWrite; | |
316 | fBegin = fOutput.tellp(); | |
317 | if (fOutput.bad()) throw -kBadTell; | |
318 | } | |
319 | ||
320 | //____________________________________________________________________ | |
321 | Int_t | |
322 | AliFMDAltroWriter::Flush() | |
323 | { | |
324 | if (fIBuffer == 0) return 0; | |
325 | fOutput.write((char*)&fBuffer, 5 * sizeof(char)); | |
326 | if (fOutput.bad()) return -kBadWrite; | |
6e79feeb | 327 | // for (UShort_t i = 0; i < 4; i++) |
1e8f773e | 328 | // std::cout << "\t" << PRETTY_HEX(3, ExtractW10(i, fBuffer)); |
329 | // std::cout << "\t" << PRETTY_HEX(10, fBuffer) << std::endl; | |
330 | fTotal += 5; | |
331 | fIBuffer = 0; | |
332 | fBuffer = 0; | |
333 | return 5; | |
334 | } | |
335 | ||
336 | //____________________________________________________________________ | |
337 | Int_t | |
338 | AliFMDAltroWriter::Close() | |
339 | { | |
340 | Flush(); | |
341 | std::ostream::pos_type end = fOutput.tellp(); | |
342 | if (fOutput.bad()) return -kBadTell; | |
343 | fOutput.seekp(fHeader, std::ios_base::beg); | |
344 | if (fOutput.bad()) return -kBadSeek; | |
f7ee745b | 345 | AliRawDataHeaderSim header; |
6e79feeb | 346 | header.fSize = (UShort_t(end) - fHeader); |
f95a63c4 | 347 | AliFMDDebug(15, ("Size set to %d (%d)", header.fSize, fTotal)); |
1e8f773e | 348 | header.SetAttribute(0); |
349 | fOutput.write((char*)(&header), sizeof(header)); | |
350 | if (fOutput.bad()) return -kBadWrite; | |
351 | fOutput.seekp(end); | |
352 | if (fOutput.bad()) return -kBadSeek; | |
353 | return sizeof(header); | |
354 | } | |
355 | ||
356 | ||
357 | //____________________________________________________________________ | |
358 | Int_t | |
359 | AliFMDAltroWriter::AddSignal(UShort_t adc) | |
360 | { | |
361 | Int_t ret = 0; | |
362 | if (adc < fThreshold) | |
363 | ret = AddBunchTrailer(); | |
364 | else { | |
365 | ret = AddToBuffer(adc); | |
366 | fLength++; | |
367 | } | |
368 | fTime++; | |
369 | if (ret < 0) AliError(Form("Failed to add signal %x: %s", ErrorString(ret))); | |
370 | return ret; | |
371 | } | |
372 | ||
373 | //____________________________________________________________________ | |
374 | Int_t | |
375 | AliFMDAltroWriter::AddChannelTrailer(UShort_t board, UShort_t chip, | |
376 | UShort_t channel) | |
377 | { | |
378 | UInt_t hwaddr = (channel & 0xf)+((chip & 0x3) << 4)+((board & 0x1f) << 7); | |
379 | return AddChannelTrailer(hwaddr); | |
380 | } | |
381 | ||
382 | //____________________________________________________________________ | |
383 | Int_t | |
384 | AliFMDAltroWriter::AddChannelTrailer(UInt_t hwaddr) | |
385 | { | |
386 | Int_t ret =0, tmp; | |
387 | if ((tmp = AddBunchTrailer()) < 0) { | |
388 | AliError(Form("Failed to bad bunch trailer: %s", ErrorString(tmp))); | |
389 | return tmp; | |
390 | } | |
391 | ret += tmp; | |
392 | if ((tmp = AddFillWords()) < 0) { | |
393 | AliError(Form("Failed to bad fill words: %s", ErrorString(tmp))); | |
394 | return tmp; | |
395 | } | |
396 | ret += tmp; | |
397 | W40_t trailer = (fgkTrailerMask + hwaddr + ((fLast & 0x3ff) << 16)); | |
398 | fBuffer = trailer; | |
399 | fIBuffer = 3; | |
400 | ret += 4; | |
401 | if ((tmp = Flush()) < 0) { | |
402 | AliError(Form("Failed to flush: %s", ErrorString(tmp))); | |
403 | return tmp; | |
404 | } | |
405 | ret += tmp; | |
406 | fTime = 0; | |
407 | fLast = 0; | |
408 | return ret; | |
409 | } | |
410 | ||
411 | //____________________________________________________________________ | |
412 | Int_t | |
413 | AliFMDAltroWriter::AddToBuffer(UShort_t x) | |
414 | { | |
415 | W40_t tmp = ConcatW40(fIBuffer, x); | |
416 | if (tmp < 0) return tmp; | |
417 | fBuffer += tmp; | |
418 | fIBuffer++; | |
419 | fLast++; | |
420 | Int_t ret = 0; | |
421 | if (fIBuffer > 3 && (ret = Flush() < 0)) return ret; | |
422 | return 1; | |
423 | } | |
424 | ||
425 | //____________________________________________________________________ | |
426 | Int_t | |
427 | AliFMDAltroWriter::AddBunchTrailer() | |
428 | { | |
429 | if (fLength <= 0) return 0; | |
430 | Int_t ret = 0, tmp; | |
431 | if ((tmp = AddToBuffer(fTime)) < 0) return tmp; | |
432 | ret += tmp; | |
433 | if ((tmp = AddToBuffer(fLength+2)) < 0) return tmp; | |
434 | ret += tmp; | |
435 | fLength = 0; | |
436 | return ret; | |
437 | } | |
438 | ||
439 | //____________________________________________________________________ | |
440 | Int_t | |
441 | AliFMDAltroWriter::AddFillWords() | |
442 | { | |
443 | Int_t ret = 0, tmp; | |
444 | if (fIBuffer == 0) return ret; | |
445 | for (Int_t i = fIBuffer; i < 4; i++) { | |
446 | if ((tmp = AddToBuffer(0x2aa)) < 0) return tmp; | |
447 | ret += tmp; | |
448 | fLast--; | |
449 | } | |
450 | if ((tmp = Flush() < 0)) return tmp; | |
451 | return ret; | |
452 | } | |
453 | ||
454 | //_____________________________________________________________________________ | |
455 | // | |
456 | // EOF | |
457 | // |