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d2e2f542 | 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 | /////////////////////////////////////////////////////////////////////////////// | |
17 | /// | |
18 | /// This is a class for reading the HMPID raw data | |
19 | /// The format of the raw data corresponds to the one | |
20 | /// which was documented by Paolo Martinengo. | |
21 | /// | |
22 | /////////////////////////////////////////////////////////////////////////////// | |
23 | ||
24 | #include "AliHMPIDRawStream.h" | |
25 | #include "AliRawReader.h" | |
26 | #include "AliLog.h" | |
27 | #include "AliDAQ.h" | |
28 | ||
29 | ClassImp(AliHMPIDRawStream) | |
30 | ||
31 | //_____________________________________________________________________________ | |
32 | AliHMPIDRawStream::AliHMPIDRawStream(AliRawReader* rawReader) : | |
33 | fDDLNumber(-1), | |
34 | fRawReader(rawReader), | |
35 | fData(NULL), | |
36 | fPosition(-1) | |
37 | { | |
38 | // Constructor | |
39 | Init(); | |
40 | ||
41 | fRawReader->Reset(); | |
42 | fRawReader->Select("HMPID"); | |
43 | } | |
44 | ||
45 | //_____________________________________________________________________________ | |
46 | AliHMPIDRawStream::~AliHMPIDRawStream() | |
47 | { | |
48 | // destructor | |
49 | } | |
50 | ||
51 | //_____________________________________________________________________________ | |
52 | void AliHMPIDRawStream::Init() | |
53 | { | |
54 | // Initalize the container | |
55 | // with the pad charges | |
56 | for(Int_t i = 0; i < kNRows; i++) | |
57 | for(Int_t j = 0; j < kNDILOGICAdd; j++) | |
58 | for(Int_t k = 0; k < kNPadAdd; k++) | |
59 | fCharge[i][j][k] = -1; | |
60 | } | |
61 | ||
62 | //_____________________________________________________________________________ | |
63 | void AliHMPIDRawStream::Reset() | |
64 | { | |
65 | // reset raw stream params | |
66 | ||
67 | // Reinitalize the containers | |
68 | Init(); | |
69 | ||
70 | fDDLNumber = -1; | |
71 | fPosition = -1; | |
72 | fData = NULL; | |
73 | ||
74 | if (fRawReader) fRawReader->Reset(); | |
75 | } | |
76 | ||
77 | //_____________________________________________________________________________ | |
78 | Bool_t AliHMPIDRawStream::Next() | |
79 | { | |
80 | // read next DDL raw data from the VZERO raw data stream | |
81 | // return kFALSE in case of error or no data left | |
82 | ||
83 | do { | |
84 | if (!fRawReader->ReadNextData(fData)) return kFALSE; | |
85 | } while (fRawReader->GetDataSize() == 0); | |
86 | ||
87 | if (fRawReader->GetDataSize() != 47148) { | |
88 | fRawReader->AddFatalErrorLog(kRawDataSizeErr,Form("size %d != 47148",fRawReader->GetDataSize())); | |
89 | AliWarning(Form("Wrong HMPID raw data size: %d, expected 47148 bytes!",fRawReader->GetDataSize())); | |
90 | return kTRUE; | |
91 | } | |
92 | fDDLNumber = fRawReader->GetDDLID(); | |
93 | fPosition = 0; | |
94 | ||
95 | Init(); | |
96 | ||
97 | // Look over rows | |
98 | for(Int_t iRow = 1; iRow < kNRows; iRow++) { | |
99 | // Read row marker | |
100 | UInt_t rowMarker = GetNextWord(); | |
101 | if ((rowMarker != 0x1ea32a8) && (rowMarker != 0xa1ea32a8)) { | |
102 | fRawReader->AddMajorErrorLog(kRowMarkerErr); | |
103 | AliWarning(Form("Wrong row marker %x for row %d, expected 0xx1ea32a8!",rowMarker,iRow)); | |
104 | return kTRUE; | |
105 | } | |
106 | UInt_t dilogic = 0, row = 0; | |
107 | for(Int_t iDILOGIC = 1; iDILOGIC < kNDILOGICAdd; iDILOGIC++) { | |
108 | // Read pad charges | |
109 | for(Int_t iPad = 0; iPad < kNPadAdd; iPad++) { | |
110 | UInt_t data = GetNextWord(); | |
111 | row = (data >> 22) & 0x1f; | |
112 | if (row < 1 || row >= kNRows) { | |
113 | fRawReader->AddMajorErrorLog(kWrongRowErr,Form("row %d",row)); | |
114 | AliWarning(Form("Wrong row index: %d, expected (1 -> %d)!",row,kNRows)); | |
115 | row = iRow; | |
116 | } | |
117 | dilogic = (data >> 18) & 0xf; | |
118 | if (dilogic < 1 || dilogic >= kNDILOGICAdd) { | |
119 | fRawReader->AddMajorErrorLog(kWrongDilogicErr,Form("dil %d",dilogic)); | |
120 | AliWarning(Form("Wrong DILOGIC index: %d, expected (1 -> %d)!",dilogic,kNDILOGICAdd)); | |
121 | dilogic = iDILOGIC; | |
122 | } | |
123 | UInt_t pad = (data >> 12) & 0x3f; | |
124 | if (pad >= kNPadAdd) { | |
125 | fRawReader->AddMajorErrorLog(kWrongPadErr,Form("pad %d",pad)); | |
126 | AliWarning(Form("Wrong pad index: %d, expected (0 -> %d)!",pad,kNPadAdd)); | |
127 | pad = iPad; | |
128 | } | |
129 | fCharge[row][dilogic][pad] = data & 0xfff; | |
130 | } | |
131 | // Now read the end-of-event word | |
132 | UInt_t eOfEvent = GetNextWord(); | |
133 | if (!((eOfEvent >> 27) & 0x1)) { | |
134 | fRawReader->AddMajorErrorLog(kEoEFlagErr); | |
135 | AliWarning(Form("Missing end-of-event flag! (%x)",eOfEvent)); | |
136 | return kTRUE; | |
137 | } | |
138 | UInt_t wc = eOfEvent & 0x7f; | |
139 | if (wc != 48) { | |
140 | fRawReader->AddMajorErrorLog(kEoESizeErr,Form("eoe size=%d",wc)); | |
141 | AliWarning(Form("Wrong end-of-event word-count:%d, expected 48!",wc)); | |
142 | return kTRUE; | |
143 | } | |
144 | UInt_t da = (eOfEvent >> 18) & 0xf; | |
145 | if (da != dilogic) { | |
146 | fRawReader->AddMajorErrorLog(kEoEDILOGICErr,Form("eoe dil %d != %d",da,dilogic)); | |
147 | AliWarning(Form("Wrong DILOGIC address found in end-of-event: %d, expected %d!",da,dilogic)); | |
148 | return kTRUE; | |
149 | } | |
150 | UInt_t ca = (eOfEvent >> 22) & 0x1f; | |
151 | if (ca != row) { | |
152 | fRawReader->AddMajorErrorLog(kEoERowErr,Form("eoe row %d != %d",ca,row)); | |
153 | AliWarning(Form("Wrong row index found in end-of-event: %d, expected %d!",ca,row)); | |
154 | return kTRUE; | |
155 | } | |
156 | } | |
157 | ||
158 | // Read the segment marker | |
159 | // One maker per 8 rows | |
160 | if (iRow%8 == 0) { | |
161 | UInt_t segWord = GetNextWord(); | |
162 | if ((segWord >> 8) != 0xab0f58) { | |
163 | fRawReader->AddMajorErrorLog(kBadSegWordErr); | |
164 | AliWarning(Form("Wrong segment word signature: %x, expected 0xab0f58!",(segWord >> 8))); | |
165 | return kTRUE; | |
166 | } | |
167 | if ((segWord & 0xff) != (((UInt_t)iRow + 7) / 8)) { | |
168 | fRawReader->AddMajorErrorLog(kWrongSegErr,Form("seg %d != %d",segWord & 0xff,(iRow + 7) / 8)); | |
169 | AliWarning(Form("Segment index (%d) does not correspond to the one expected from row index (%d)!",segWord & 0xff,(iRow + 7) / 8)); | |
170 | return kTRUE; | |
171 | } | |
172 | } | |
173 | } | |
174 | return kTRUE; | |
175 | } | |
176 | ||
177 | //_____________________________________________________________________________ | |
178 | UInt_t AliHMPIDRawStream::GetNextWord() | |
179 | { | |
180 | // This method returns the next 32 bit word | |
181 | // inside the raw data payload. | |
182 | // The method is supposed to be endian (platform) | |
183 | // independent. | |
184 | if (!fData || fPosition < 0) AliFatal("Raw data payload buffer is not yet initialized !"); | |
185 | ||
186 | UInt_t word = 0; | |
187 | word |= fData[fPosition++]; | |
188 | word |= fData[fPosition++] << 8; | |
189 | word |= fData[fPosition++] << 16; | |
190 | word |= fData[fPosition++] << 24; | |
191 | ||
192 | return word; | |
193 | } | |
194 | ||
195 | //_____________________________________________________________________________ | |
196 | Short_t AliHMPIDRawStream::GetCharge(Int_t row, Int_t dilogic, Int_t pad) const | |
197 | { | |
198 | // The method returns the charge collected | |
199 | // in a particular channel | |
200 | // Return -1 in case the charge from the channels | |
201 | // has not been read or invalid arguments | |
202 | ||
203 | if (row < 1 || row >= kNRows) { | |
204 | AliError(Form("Wrong row index %d!",row)); | |
205 | return 0; | |
206 | } | |
207 | ||
208 | if (dilogic < 1 || dilogic >= kNDILOGICAdd) { | |
209 | AliError(Form("Wrong DILOGIC address %d!",dilogic)); | |
210 | return 0; | |
211 | } | |
212 | ||
213 | if (pad >= kNPadAdd) { | |
214 | AliError(Form("Wrong pad index %d!",pad)); | |
215 | return 0; | |
216 | } | |
217 | ||
218 | return fCharge[row][dilogic][pad]; | |
219 | } |