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dd1b1dd1 | 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 ITS SDD raw data files and providing | |
19 | // information about digits | |
20 | // | |
21 | /////////////////////////////////////////////////////////////////////////////// | |
22 | ||
23 | #include "AliVMERawStream.h" | |
24 | #include "AliRawReader.h" | |
25 | ||
26 | ClassImp(AliVMERawStream) | |
27 | ||
28 | ||
29 | ||
30 | AliVMERawStream::AliVMERawStream(AliRawReader* rawReader) : | |
31 | fRawReader(rawReader), | |
32 | fData(0), | |
33 | fNChannels(-1), | |
34 | fBlock(0), | |
35 | fNumber(0), | |
36 | fChannel(0), | |
37 | fValue(0), | |
38 | fTime(0), | |
39 | fTimeMuSec(0) | |
40 | { | |
41 | // create an object to read VME raw digits | |
42 | ||
43 | fRawReader = rawReader; | |
44 | ||
45 | ReadTDC(); | |
46 | ReadTime(); | |
47 | ||
48 | fRawReader->Reset(); | |
49 | fRawReader->SelectEquipment(551, 38, 38); | |
50 | } | |
51 | ||
52 | AliVMERawStream::AliVMERawStream(const AliVMERawStream& stream) : | |
53 | TObject(stream) | |
54 | { | |
55 | Fatal("AliVMERawStream", "copy constructor not implemented"); | |
56 | } | |
57 | ||
58 | AliVMERawStream& AliVMERawStream::operator = (const AliVMERawStream& | |
59 | /* stream */) | |
60 | { | |
61 | Fatal("operator =", "assignment operator not implemented"); | |
62 | return *this; | |
63 | } | |
64 | ||
65 | ||
66 | Bool_t AliVMERawStream::Next() | |
67 | { | |
68 | // read the next raw digit | |
69 | // returns kFALSE if there is no digit left | |
70 | ||
71 | // V551 string | |
72 | if (fNChannels == -1) { | |
73 | if (!fRawReader->ReadNextInt(fData)) return kFALSE; | |
74 | if (!CheckString("V551")) return kFALSE; | |
75 | fNChannels = 0; | |
76 | } | |
77 | ||
78 | while (fNChannels == 0) { | |
79 | // V550 or v551 string | |
80 | if (!fRawReader->ReadNextInt(fData)) { | |
81 | Error("Next", "incomplete equipment"); | |
82 | return kFALSE; | |
83 | } | |
84 | // check for v551 string (end of data) | |
85 | const char* v551 = "v551"; | |
86 | if (fData == *((UInt_t*) v551)) return kFALSE; | |
87 | if (!CheckString("V550")) return kFALSE; | |
88 | ||
89 | // block | |
90 | if (!fRawReader->ReadNextShort(fBlock)) { | |
91 | Error("Next", "incomplete equipment"); | |
92 | return kFALSE; | |
93 | } | |
94 | ||
95 | // serial number | |
96 | if (!fRawReader->ReadNextShort(fNumber)) { | |
97 | Error("Next", "incomplete equipment"); | |
98 | return kFALSE; | |
99 | } | |
100 | ||
101 | // number of channels | |
a6438609 | 102 | if (!fRawReader->ReadNextInt((UInt_t&) fNChannels)) { |
dd1b1dd1 | 103 | Error("Next", "incomplete equipment"); |
104 | return kFALSE; | |
105 | } | |
106 | } | |
107 | ||
108 | if (!fRawReader->ReadNextInt(fData)) { | |
109 | Error("Next", "incomplete equipment"); | |
110 | return kFALSE; | |
111 | } | |
112 | fChannel = (fData >> 12) & 0x03ff; | |
113 | fValue = fData & 0x0fff; | |
114 | fNChannels--; | |
115 | ||
116 | return kTRUE; | |
117 | } | |
118 | ||
119 | ||
120 | ||
121 | Bool_t AliVMERawStream::CheckString(const char* str) const | |
122 | { | |
123 | // check fData to be equal to the given string | |
124 | ||
125 | if (fData != *((UInt_t*) str)) { | |
126 | char strData[5]; | |
127 | memcpy(strData, &fData, 4); | |
128 | strData[4] = 0; | |
129 | Error("CheckString", "invalid %s string (%s)", str, strData); | |
130 | return kFALSE; | |
131 | } | |
132 | return kTRUE; | |
133 | } | |
134 | ||
135 | Bool_t AliVMERawStream::ReadTDC() | |
136 | { | |
137 | // read the TDC information | |
138 | ||
139 | fRawReader->Reset(); | |
140 | fRawReader->SelectEquipment(775, 72, 72); | |
141 | ||
142 | // V775 string | |
143 | if (!fRawReader->ReadNextInt(fData)) return kFALSE; | |
144 | if (!CheckString("V775")) return kFALSE; | |
145 | ||
146 | // header | |
147 | if (!fRawReader->ReadNextInt(fData)) { | |
148 | Error("ReadTDC", "incomplete TDC equipment"); | |
149 | return kFALSE; | |
150 | } | |
151 | if ((fData & 0x02000000) == 0) { | |
152 | Error("ReadTDC", "invalid header: 0x%x", fData); | |
153 | return kFALSE; | |
154 | } | |
155 | ||
156 | // check the array size | |
157 | Int_t nTDC = fRawReader->GetDataSize() / 4 - 4; // - V775,header,counter,v775 | |
158 | if ( nTDC != 3 ) { | |
159 | Error("ReadTDC", "wrong number of TDC channels: %d", nTDC); | |
160 | return kFALSE; | |
161 | } | |
162 | ||
163 | // TDC data | |
164 | for (Int_t i = 0; i < fgkNTDC; i++) { | |
165 | if (!fRawReader->ReadNextInt(fData)) { | |
166 | Error("ReadTDC", "incomplete TDC equipment"); | |
167 | return kFALSE; | |
168 | } | |
169 | if (fData & 0x07000000) { | |
170 | Warning("ReadTDC", "bad TDC data: %x", fData); | |
171 | } | |
172 | if ((fData & 0x00004000) == 0) { | |
173 | Warning("ReadTDC", "TDC data not valid: %x", fData); | |
174 | } | |
175 | if (fData & 0x00002000) { | |
176 | Warning("ReadTDC", "TDC data underflow: %x", fData); | |
177 | } | |
178 | if (fData & 0x00001000) { | |
179 | Warning("ReadTDC", "TDC data overflow: %x", fData); | |
180 | } | |
181 | fTDCChannel[i] = (fData >> 16) & 0x1f; | |
182 | fTDCValue[i] = fData & 0x0fff; | |
183 | } | |
184 | ||
185 | // counter | |
186 | if (!fRawReader->ReadNextInt(fData)) { | |
187 | Error("ReadTDC", "incomplete TDC equipment"); | |
188 | return kFALSE; | |
189 | } | |
190 | if ((fData & 0x04000000) == 0) { | |
191 | Error("ReadTDC", "invalid counter: 0x%x", fData); | |
192 | return kFALSE; | |
193 | } | |
194 | ||
195 | // v775 string | |
196 | if (!fRawReader->ReadNextInt(fData)) { | |
197 | Error("ReadTDC", "incomplete TDC equipment"); | |
198 | return kFALSE; | |
199 | } | |
200 | if (!CheckString("v775")) return kFALSE; | |
201 | ||
202 | return kTRUE; | |
203 | } | |
204 | ||
205 | Bool_t AliVMERawStream::ReadTime() | |
206 | { | |
207 | // read the time information | |
208 | ||
209 | fRawReader->Reset(); | |
210 | fRawReader->SelectEquipment(1970, 0x12345678, 0x12345678); | |
211 | ||
212 | // TIME string | |
213 | if (!fRawReader->ReadNextInt(fData)) return kFALSE; | |
214 | if (!CheckString("TIME")) return kFALSE; | |
215 | ||
216 | // time value | |
217 | if (!fRawReader->ReadNextInt(fTime)) { | |
218 | Error("ReadTime", "incomplete time equipment"); | |
219 | return kFALSE; | |
220 | } | |
221 | ||
222 | // micro seconds value | |
223 | if (!fRawReader->ReadNextInt(fTimeMuSec)) { | |
224 | Error("ReadTime", "incomplete time equipment"); | |
225 | return kFALSE; | |
226 | } | |
227 | ||
228 | // time string | |
229 | if (!fRawReader->ReadNextInt(fData)) { | |
230 | Error("ReadTime", "incomplete time equipment"); | |
231 | return kFALSE; | |
232 | } | |
233 | if (!CheckString("time")) return kFALSE; | |
234 | ||
235 | return kTRUE; | |
236 | } |