]>
Commit | Line | Data |
---|---|---|
2906f4c2 | 1 | /************************************************************************** |
27639c72 | 2 | * Copyright(c) 2007-2009, ALICE Experiment at CERN, All rights reserved. * |
2906f4c2 | 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 | ||
ceb607d0 | 16 | /* $Id$*/ |
2906f4c2 | 17 | |
18 | /////////////////////////////////////////////////////////////////////////////// | |
19 | /// | |
20 | /// This class provides access to ITS SDD digits in raw data. | |
21 | /// | |
22 | /////////////////////////////////////////////////////////////////////////////// | |
23 | ||
24 | #include "AliITSRawStreamSDD.h" | |
d9ed1779 | 25 | #include "AliITSRawStreamSDDCompressed.h" |
2906f4c2 | 26 | #include "AliRawReader.h" |
39a7c5cc | 27 | #include "AliLog.h" |
2906f4c2 | 28 | |
29 | ClassImp(AliITSRawStreamSDD) | |
1ba0280f | 30 | |
31 | const UInt_t AliITSRawStreamSDD::fgkCodeLength[8] = {8, 18, 2, 3, 4, 5, 6, 7}; | |
2906f4c2 | 32 | |
979b5a5f | 33 | //______________________________________________________________________ |
2906f4c2 | 34 | AliITSRawStreamSDD::AliITSRawStreamSDD(AliRawReader* rawReader) : |
e56160b8 | 35 | AliITSRawStream(rawReader), |
979b5a5f | 36 | fDDLModuleMap(0), |
e56160b8 | 37 | fData(0), |
0cc008b8 | 38 | fResetSkip(kTRUE), |
a97b3678 | 39 | fEventId(0), |
14dceddf | 40 | fCarlosId(-1), |
e56160b8 | 41 | fChannel(0), |
a97b3678 | 42 | fJitter(0), |
6297cc01 | 43 | fEightBitSignal(0), |
44 | fDecompressAmbra(kTRUE) | |
9c8e7d50 | 45 | { |
2906f4c2 | 46 | // create an object to read ITS SDD raw digits |
27639c72 | 47 | Reset(); |
83ec5e27 | 48 | for(Int_t im=0;im<kSDDModules;im++){ |
49 | fLowThresholdArray[im][0]=0; | |
50 | fLowThresholdArray[im][1]=0; | |
51 | } | |
765a9f95 | 52 | for(Int_t i=0;i<kFifoWords;i++) fNfifo[i]=0; |
a97b3678 | 53 | fRawReader->Reset(); |
362c9d61 | 54 | fRawReader->Select("ITSSDD"); |
1ba0280f | 55 | |
27639c72 | 56 | for(Short_t i=0; i<kCarlosWords; i++) fICarlosWord[i]=0x30000000 + i; // 805306368+i; |
57 | for(Short_t i=0; i<kFifoWords; i++) fIFifoWord[i]=0x30000010 + i; // 805306384+i; | |
1ba0280f | 58 | } |
59 | ||
979b5a5f | 60 | //______________________________________________________________________ |
61 | AliITSRawStreamSDD::AliITSRawStreamSDD(const AliITSRawStreamSDD& rs) : | |
62 | AliITSRawStream(rs.fRawReader), | |
63 | fDDLModuleMap(rs.fDDLModuleMap), | |
64 | fData(0), | |
0cc008b8 | 65 | fResetSkip(kTRUE), |
979b5a5f | 66 | fEventId(0), |
67 | fCarlosId(-1), | |
68 | fChannel(0), | |
69 | fJitter(0), | |
6297cc01 | 70 | fEightBitSignal(0), |
71 | fDecompressAmbra(kTRUE) | |
979b5a5f | 72 | { |
73 | // copy constructor | |
74 | AliError("Copy constructor should not be used."); | |
75 | } | |
76 | //__________________________________________________________________________ | |
77 | AliITSRawStreamSDD& AliITSRawStreamSDD::operator=(const AliITSRawStreamSDD& rs) { | |
78 | // assignment operator | |
79 | if (this!=&rs) {} | |
80 | AliError("Assignment opertator should not be used."); | |
81 | return *this; | |
82 | } | |
83 | ||
84 | //______________________________________________________________________ | |
85 | AliITSRawStreamSDD::~AliITSRawStreamSDD(){ | |
86 | if(fDDLModuleMap) delete fDDLModuleMap; | |
87 | } | |
88 | //______________________________________________________________________ | |
d9ed1779 | 89 | UChar_t AliITSRawStreamSDD::ReadBlockAttributes(AliRawReader* rawReader){ |
90 | // reads block attribuited from CDH | |
91 | UChar_t *data; | |
92 | rawReader->Reset(); | |
93 | rawReader->Select("ITSSDD"); | |
94 | do{ | |
95 | if(!rawReader->ReadNextData(data)) return 0x0; | |
96 | }while(rawReader->GetDataSize()==0); | |
97 | UChar_t attr=rawReader->GetBlockAttributes(); | |
98 | return attr; | |
99 | } | |
100 | //______________________________________________________________________ | |
101 | AliITSRawStream* AliITSRawStreamSDD::CreateRawStreamSDD(AliRawReader* rawReader, UChar_t attributes){ | |
102 | // instantiates the proper raw stream from block attributes value | |
103 | ||
104 | Int_t rawFormat=(attributes&0xE0)>>5; | |
105 | rawReader->Reset(); | |
106 | AliITSRawStream* inputSDD; | |
107 | if(rawFormat==0){ | |
108 | inputSDD=new AliITSRawStreamSDDCompressed(rawReader); | |
109 | inputSDD->SetADCEncoded(kTRUE); | |
110 | }else{ | |
111 | inputSDD=new AliITSRawStreamSDD(rawReader); | |
112 | } | |
113 | return inputSDD; | |
114 | } | |
115 | //______________________________________________________________________ | |
116 | AliITSRawStream* AliITSRawStreamSDD::CreateRawStreamSDD(AliRawReader* rawReader){ | |
117 | // reads the data format from CDH and instantiates the proper raw stream | |
118 | UChar_t attr=ReadBlockAttributes(rawReader); | |
119 | return CreateRawStreamSDD(rawReader,attr); | |
120 | } | |
121 | //______________________________________________________________________ | |
1ba0280f | 122 | UInt_t AliITSRawStreamSDD::ReadBits() |
123 | { | |
124 | // read bits from the given channel | |
a97b3678 | 125 | UInt_t result = (fChannelData[fCarlosId][fChannel] & ((1<<fReadBits[fCarlosId][fChannel]) - 1)); |
126 | fChannelData[fCarlosId][fChannel] >>= fReadBits[fCarlosId][fChannel]; | |
127 | fLastBit[fCarlosId][fChannel] -= fReadBits[fCarlosId][fChannel]; | |
1ba0280f | 128 | return result; |
2906f4c2 | 129 | } |
130 | ||
979b5a5f | 131 | //______________________________________________________________________ |
1ba0280f | 132 | Int_t AliITSRawStreamSDD::DecompAmbra(Int_t value) const |
133 | { | |
a97b3678 | 134 | // AMBRA decompression (from 8 to 10 bit) |
135 | ||
1ba0280f | 136 | if ((value & 0x80) == 0) { |
137 | return value & 0x7f; | |
138 | } else if ((value & 0x40) == 0) { | |
0b4ad9b0 | 139 | if(value&1) return 0x080 + ((value & 0x3f) << 1); |
1ba0280f | 140 | return 0x081 + ((value & 0x3f) << 1); |
141 | } else if ((value & 0x20) == 0) { | |
0b4ad9b0 | 142 | if(value&1) return 0x103 + ((value & 0x1f) << 3); |
1ba0280f | 143 | return 0x104 + ((value & 0x1f) << 3); |
144 | } else { | |
0b4ad9b0 | 145 | if(value&1) return 0x207 + ((value & 0x1f) << 4); |
1ba0280f | 146 | return 0x208 + ((value & 0x1f) << 4); |
147 | } | |
a97b3678 | 148 | |
1ba0280f | 149 | } |
2906f4c2 | 150 | |
979b5a5f | 151 | //______________________________________________________________________ |
2906f4c2 | 152 | Bool_t AliITSRawStreamSDD::Next() |
153 | { | |
154 | // read the next raw digit | |
155 | // returns kFALSE if there is no digit left | |
de075dae | 156 | // returns kTRUE and fCompletedModule=kFALSE and fCompletedDDL=kFALSE when a digit is found |
157 | // returns kTRUE and fCompletedModule=kTRUE and fCompletedDDL=kFALSE when a module is completed (=3x3FFFFFFF footer words) | |
158 | // returns kTRUE and fCompletedModule=kFALSE and fCompletedDDL=kTRUE when a DDL is completed (=jitter word) | |
5dfa68c5 | 159 | |
2906f4c2 | 160 | fPrevModuleID = fModuleID; |
5dfa68c5 | 161 | fCompletedModule=kFALSE; |
a97b3678 | 162 | |
a97b3678 | 163 | while (kTRUE) { |
0cc008b8 | 164 | if(fResetSkip){ |
165 | Reset(); | |
166 | Bool_t kSkip = SkipHeaderWord(); | |
167 | if(!kSkip) return kSkip; | |
168 | fResetSkip=kFALSE; | |
169 | } | |
8345a1cf | 170 | if ((fChannel < 0) || (fCarlosId < 0) || (fChannel >= 2) || (fCarlosId >= kModulesPerDDL) || (fLastBit[fCarlosId][fChannel] < fReadBits[fCarlosId][fChannel]) ) { |
14dceddf | 171 | if (!fRawReader->ReadNextInt(fData)) return kFALSE; // read next word |
70881050 | 172 | |
5dfa68c5 | 173 | |
c3ad350c | 174 | if((fData >> 16) == 0x7F00){ // jitter word |
de075dae | 175 | fJitter = fData&0x000000ff; |
0cc008b8 | 176 | fResetSkip=kTRUE; |
de075dae | 177 | fCompletedModule=kFALSE; |
178 | fCompletedDDL=kTRUE; | |
179 | return kTRUE; | |
180 | } | |
5dfa68c5 | 181 | |
14dceddf | 182 | UInt_t nData28= fData >> 28; |
183 | UInt_t nData30= fData >> 30; | |
184 | ||
185 | ||
186 | if (nData28== 0x02) { // header | |
187 | fEventId = (fData >> 3) & 0x07FF; | |
188 | } else if (nData28== 0x03) { // Carlos and FIFO words or Footers | |
189 | if(fData>=fICarlosWord[0]&&fData<=fICarlosWord[11]) { // Carlos Word | |
14dceddf | 190 | fCarlosId = fData-fICarlosWord[0]; |
191 | Int_t iFifoIdx = fCarlosId/3; | |
14dceddf | 192 | fNfifo[iFifoIdx] = fCarlosId; |
193 | } else if (fData>=fIFifoWord[0]&&fData<=fIFifoWord[3]){ // FIFO word | |
14dceddf | 194 | fCarlosId = fNfifo[fData-fIFifoWord[0]]; |
4d350ec2 | 195 | } else if(fData==0x3FFFFFFF && fCarlosId>=0 && fCarlosId<kModulesPerDDL){ // Carlos footer |
fffa954f | 196 | fICountFoot[fCarlosId]++; // stop before the last word (last word=jitter) |
197 | if(fICountFoot[fCarlosId]==3){ | |
198 | fCompletedModule=kTRUE; | |
de075dae | 199 | fCompletedDDL=kFALSE; |
fffa954f | 200 | return kTRUE; |
9c8e7d50 | 201 | } |
14dceddf | 202 | } else if(fData==0x3F1F1F1F){ // CarlosRX footer |
70881050 | 203 | // CARLOSRX footer -- do nothing |
14dceddf | 204 | }else{ |
70881050 | 205 | fRawReader->AddMajorErrorLog(kDataError,"Bad footer"); |
fd2d1992 | 206 | AliWarning(Form("Invalid data: bad footer %08X\n", fData)); |
14dceddf | 207 | return kFALSE; |
9c8e7d50 | 208 | } |
14dceddf | 209 | } else if (nData30 == 0x02 || nData30 == 0x03) { |
210 | fChannel = nData30-2; | |
7a8c5708 | 211 | if(fCarlosId>=0 && fCarlosId<kModulesPerDDL){ |
212 | fChannelData[fCarlosId][fChannel] += | |
213 | (ULong64_t(fData & 0x3FFFFFFF) << fLastBit[fCarlosId][fChannel]); | |
214 | fLastBit[fCarlosId][fChannel] += 30; | |
215 | } | |
70881050 | 216 | } else if (nData28== 0x04) { |
217 | // JTAG word -- do nothing | |
a97b3678 | 218 | } else { // unknown data format |
9c8e7d50 | 219 | fRawReader->AddMajorErrorLog(kDataFormatErr,Form("Invalid data %8.8x",fData)); |
b24ea968 | 220 | AliWarning(Form("Invalid data: %08X\n", fData)); |
9c8e7d50 | 221 | return kFALSE; |
a97b3678 | 222 | } |
223 | ||
8345a1cf | 224 | if(fCarlosId>=0 && fCarlosId <kModulesPerDDL){ |
e2fc1bc8 | 225 | Int_t nDDL=fRawReader->GetDDLID(); |
4d350ec2 | 226 | if(nDDL>=0){ |
227 | fModuleID = GetModuleNumber(nDDL,fCarlosId); | |
228 | } | |
8345a1cf | 229 | } |
a97b3678 | 230 | } else { // decode data |
a97b3678 | 231 | if (fReadCode[fCarlosId][fChannel]) {// read the next code word |
9c8e7d50 | 232 | fChannelCode[fCarlosId][fChannel] = ReadBits(); |
233 | fReadCode[fCarlosId][fChannel] = kFALSE; | |
234 | fReadBits[fCarlosId][fChannel] = fgkCodeLength[fChannelCode[fCarlosId][fChannel]]; | |
a97b3678 | 235 | } else { // read the next data word |
9c8e7d50 | 236 | UInt_t data = ReadBits(); |
237 | fReadCode[fCarlosId][fChannel] = kTRUE; | |
238 | fReadBits[fCarlosId][fChannel] = 3; | |
239 | if (fChannelCode[fCarlosId][fChannel] == 0) { // set the time bin | |
240 | fTimeBin[fCarlosId][fChannel] = data; | |
241 | } else if (fChannelCode[fCarlosId][fChannel] == 1) { // next anode | |
242 | fTimeBin[fCarlosId][fChannel] = 0; | |
243 | fAnode[fCarlosId][fChannel]++; | |
244 | } else { // ADC signal data | |
6297cc01 | 245 | fEightBitSignal=data + (1 << fChannelCode[fCarlosId][fChannel]); |
246 | if(fDecompressAmbra) fSignal = DecompAmbra(fEightBitSignal + fLowThresholdArray[fModuleID-kSPDModules][fChannel]); | |
9c8e7d50 | 247 | fCoord1 = fAnode[fCarlosId][fChannel]; |
248 | fCoord2 = fTimeBin[fCarlosId][fChannel]; | |
249 | fTimeBin[fCarlosId][fChannel]++; | |
de075dae | 250 | fCompletedModule=kFALSE; |
251 | fCompletedDDL=kFALSE; | |
9c8e7d50 | 252 | return kTRUE; |
253 | } | |
a97b3678 | 254 | } |
255 | } | |
256 | } | |
14dceddf | 257 | return kFALSE; |
2906f4c2 | 258 | } |
1ba0280f | 259 | |
979b5a5f | 260 | //______________________________________________________________________ |
a97b3678 | 261 | void AliITSRawStreamSDD::Reset(){ |
765a9f95 | 262 | |
a97b3678 | 263 | //reset data member for a new ddl |
a97b3678 | 264 | for(Int_t i=0;i<2;i++){ |
265 | for(Int_t ic=0;ic<kModulesPerDDL;ic++){ | |
266 | fChannelData[ic][i]=0; | |
267 | fLastBit[ic][i]=0; | |
268 | fChannelCode[ic][i]=0; | |
14dceddf | 269 | fReadCode[ic][i]=kTRUE; |
270 | fReadBits[ic][i]=3; | |
a97b3678 | 271 | fTimeBin[ic][i]=0; |
272 | fAnode[ic][i]=0; | |
b24ea968 | 273 | fICountFoot[ic]=0; |
a97b3678 | 274 | } |
a97b3678 | 275 | } |
a97b3678 | 276 | } |
765a9f95 | 277 | |
979b5a5f | 278 | //______________________________________________________________________ |
83ec5e27 | 279 | Bool_t AliITSRawStreamSDD::SkipHeaderWord(){ |
8345a1cf | 280 | // skip the 1 DDL header word = 0xffffffff |
83ec5e27 | 281 | while (kTRUE) { |
282 | if (!fRawReader->ReadNextInt(fData)) return kFALSE; | |
765a9f95 | 283 | if ((fData >> 30) == 0x01) continue; // JTAG word |
83ec5e27 | 284 | if(fData==0xFFFFFFFF) return kTRUE; |
765a9f95 | 285 | } |
765a9f95 | 286 | } |
287 |