Bug fix
[u/mrichter/AliRoot.git] / ZDC / AliZDCRawStream.cxx
CommitLineData
8309c1ab 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///
20/// This class provides access to ZDC digits in raw data.
21///
22/// It loops over all ZDC digits in the raw data given by the AliRawReader.
23/// The Next method goes to the next digit. If there are no digits left
24/// it returns kFALSE.
25/// Getters provide information about the current digit.
26///
27///////////////////////////////////////////////////////////////////////////////
28
29#include "AliZDCRawStream.h"
30#include "AliRawReader.h"
31
32ClassImp(AliZDCRawStream)
33
34
35//_____________________________________________________________________________
36AliZDCRawStream::AliZDCRawStream(AliRawReader* rawReader) :
37 fRawReader(rawReader),
38 fADCValue(-1)
39{
40// create an object to read ZDC raw digits
41
42 fSector[0] = 1;
43 fSector[1] = -1;
44 fRawReader->Select(kDDLOffset / 0x100);
45}
46
47//_____________________________________________________________________________
48AliZDCRawStream::AliZDCRawStream(const AliZDCRawStream& stream) :
49 TObject(stream),
50 fADCValue(-1)
51{
52// copy constructor
53
54 Fatal("AliZDCRawStream", "copy constructor not implemented");
55}
56
57//_____________________________________________________________________________
58AliZDCRawStream& AliZDCRawStream::operator = (const AliZDCRawStream&
59 /* stream */)
60{
61// assignment operator
62
63 Fatal("operator =", "assignment operator not implemented");
64 return *this;
65}
66
67//_____________________________________________________________________________
68AliZDCRawStream::~AliZDCRawStream()
69{
70// destructor
71
72}
73
74
75//_____________________________________________________________________________
76Bool_t AliZDCRawStream::Next()
77{
78// read the next raw digit
79// returns kFALSE if there is no digit left
80
81 if (!fRawReader->ReadNextInt((UInt_t&) fRawADC)) return kFALSE;
82 fIsADCDataWord = kFALSE;
83
84 //ADC Header
85 if (fRawADC & 0x2000000) {
48642b09 86 //printf("This is the ADC Header\n");
87 //printf("%d data words will follow \n",2*((fRawADC & 0x3f00) >> 8));
8309c1ab 88 }
89 //ADC EOB
90 else if (fRawADC & 0x4000000) {
48642b09 91 //printf("This is the ADC End Of Block\n");
92 //printf("This was event number %d\n",(fRawADC & 0xffffff));
93 }
94 else
8309c1ab 95 //ADC Data Words
96 {
48642b09 97 //printf("This is an ADC Data Word\n");
98 //printf("Channel %d range %d\n",(fRawADC & 0x1e0000) >> 17, (fRawADC & 0x10000) >> 16);
99 //if(fRawADC & 0x1000) printf("Data = overflow\n");
8309c1ab 100 fADCGain = (fRawADC & 0x10000) >> 16;
101 fADCValue = (fRawADC & 0xfff);
102 fIsADCDataWord = kTRUE;
103
8a2624cc 104 Int_t vADCChannel = (fRawADC & 0x1e0000) >> 17;
105 if (vADCChannel >= 0 && vADCChannel <= 4) {
8309c1ab 106 fSector[0] = 1;
8a2624cc 107 fSector[1] = vADCChannel;
108 } else if (vADCChannel >= 8 && vADCChannel <= 12) {
8309c1ab 109 fSector[0] = 2;
8a2624cc 110 fSector[1] = vADCChannel-8;
111 } else if (vADCChannel == 5 || vADCChannel == 13){
8309c1ab 112 fSector[0] = 3;
8a2624cc 113 fSector[1] = (vADCChannel-5)/8;
8309c1ab 114 }
115 }
116 return kTRUE;
117}