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38300302 | 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 | /* $Id$ */ | |
17 | /////////////////////////////////////////////////////////////////////////////// | |
18 | /// | |
19 | /// This class provides access to beam test ITS SSD digits in raw data. | |
20 | // Modified by Enrico Fragiacomo, October 2004, for beamtest analysis | |
21 | /// | |
22 | /////////////////////////////////////////////////////////////////////////////// | |
23 | ||
24 | #include "AliITSRawStreamSSDv1.h" | |
25 | #include "AliRawReader.h" | |
26 | ||
27 | ClassImp(AliITSRawStreamSSDv1) | |
28 | ||
29 | ||
30 | AliITSRawStreamSSDv1::AliITSRawStreamSSDv1(AliRawReader* rawReader) : | |
e56160b8 | 31 | AliITSRawStreamSSD(rawReader), |
32 | fADModule(0), | |
33 | fADC(0){ | |
38300302 | 34 | // create an object to read ITS SSD raw digits |
35 | ||
38300302 | 36 | fRawReader->SelectEquipment(17,102,102); |
37 | } | |
38 | ||
39 | ||
40 | Bool_t AliITSRawStreamSSDv1::Next() | |
41 | { | |
42 | // read the next raw digit | |
43 | // returns kFALSE if there is no digit left | |
44 | ||
45 | Int_t seq=0; | |
46 | ||
47 | fPrevModuleID = fModuleID; | |
48 | ||
49 | if (!fRawReader->ReadNextInt(fData)) return kFALSE; | |
50 | ||
51 | fADModule = (fData >> 27) & 0x0000000F; | |
52 | fADC = (fData >> 23) & 0x0000000F; | |
53 | ||
54 | // seq 0 (first 768 strips) or 1 are obtained from fCoord2 | |
55 | fCoord2 = (fData >> 12) & 0x000007FF; | |
56 | seq = (fCoord2 >= 768) ? 1 : 0; | |
57 | if(seq) fCoord2 = 1535 - fCoord2; | |
58 | ||
59 | if((fCoord2<0)||(fCoord2>=768)) return kFALSE; | |
60 | ||
61 | // ADModule 2 -> layer 5 | |
62 | // fCoord1 is set according to the cabling map | |
63 | if(fADModule==2) { | |
64 | if ((fADC==0)&&(seq==0)) {fModuleID = 10; fCoord1=1;} | |
65 | else if ((fADC==0)&&(seq==1)) {fModuleID = 11; fCoord1=1;} | |
66 | else if ((fADC==1)&&(seq==0)) {fModuleID = 11; fCoord1=0;} | |
67 | else if ((fADC==1)&&(seq==1)) {fModuleID = 10; fCoord1=0;} | |
68 | } | |
69 | // ADModule 6 -> layer 6 | |
70 | // fCoord1 is set according to the cabling map | |
71 | else if(fADModule==6) { | |
72 | if ((fADC==0)&&(seq==0)) {fModuleID = 12; fCoord1=0;} | |
73 | else if ((fADC==0)&&(seq==1)) {fModuleID = 13; fCoord1=0;} | |
74 | else if ((fADC==1)&&(seq==0)) {fModuleID = 13; fCoord1=1;} | |
75 | else if ((fADC==1)&&(seq==1)) {fModuleID = 12; fCoord1=1;} | |
76 | } | |
77 | ||
78 | fSignal = (fData & 0x00000FFF); | |
79 | ||
80 | if(fSignal>=2048) fSignal-=4096; | |
81 | ||
82 | return kTRUE; | |
83 | } | |
84 |