Adding the AliAnalysisGUI class which is the main class that controls the GUI.
[u/mrichter/AliRoot.git] / ITS / AliITSRawStreamSDDv3.cxx
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1ba0280f 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///
19/// This class provides access to ITS SDD digits in test beam raw data.
20// for beam test of November 2004
21///
22///////////////////////////////////////////////////////////////////////////////
23
24/*
25 Error Flag words: (http://www.bo.infn.it/~falchier/alice.html)
26 with multi-event buffer
27
28bits 31-14: all zeros
29bit 13 : L0 ack
30bit 12 : L1 reject ack
31bit 11 : L2 reject ack
32bit 10 : prepulse ack
33bit 9 : testpulse ack
34bit 8 : flush
35bit 7 : busy
36bit 6 : flag error ch 1
37bit 5 : flag error ch 0
38bit 4 : disable trigger mismatch ack
39bit 3 : parity error right hybrid
40bit 2 : parity error left hybrid
41bit 1 : parity error CARLOS ch 1
42bit 0 : parity error CARLOS ch 2
43*/
44#include "AliITSRawStreamSDDv3.h"
45#include "AliRawReader.h"
46
47ClassImp(AliITSRawStreamSDDv3)
48
49
50
51
52
53AliITSRawStreamSDDv3::AliITSRawStreamSDDv3(AliRawReader* rawReader) :
54 AliITSRawStreamSDD(rawReader)
55{
56// create an object to read ITS SDD raw digits
57
58
59 fRawReader->Reset();
60 fRawReader->SelectEquipment(17, 204, 204);
61}
62
63
64Bool_t AliITSRawStreamSDDv3::Next()
65{
66// read the next raw digit
67// returns kFALSE if there is no digit left
68 // skip the first 8 words
69 while (fSkip < 9) {
70 if (!fRawReader->ReadNextInt(fData)) return kFALSE;
71 if ((fData >> 30) == 0x01) continue; // JTAG word
72 fSkip++;
73 }
74
75 Int_t countFoot=0;
76 while (kTRUE) {
77 if ((fChannel < 0) || (fLastBit[fChannel] < fReadBits[fChannel])) {
78 if (!fRawReader->ReadNextInt(fData)) return kFALSE; // read next word
79 fChannel = -1;
80 if ((fData >> 28) == 0x02) { // header
81 fEventId = (fData >> 3) & 0x07FF;
82 fCarlosId = (fData >> 1) & 0x03;
83 } else if ((fData >> 28) == 0x03) { // footer
84 countFoot++; // stop before the last word (last word=jitter)
85 if(countFoot==3) return kFALSE;
86 } else if ((fData >> 29) == 0x00) { // error
87
88 if ((fData & 0x00000163) != 0) {
89 Error("Next", "error codes = %8.8x",fData);
90 return kFALSE;
91 }
92 } else if ((fData >> 30) == 0x01) { // JTAG word
93 // ignored
94 } else if ((fData >> 30) == 0x02) { // channel 0 data
95 fChannel = 0;
96 } else if ((fData >> 30) == 0x03) { // channel 1 data
97 fChannel = 1;
98 } else { // unknown data format
99 Error("Next", "invalid data: %8.8x\n", fData);
100 return kFALSE;
101 }
102
103
104 if (fChannel >= 0) { // add read word to the data
105 fChannelData[fChannel] +=
106 (ULong64_t(fData & 0x3FFFFFFF) << fLastBit[fChannel]);
107 fLastBit[fChannel] += 30;
108 }
109
110 } else { // decode data
111 if (fReadCode[fChannel]) { // read the next code word
112 fChannelCode[fChannel] = ReadBits();
113 fReadCode[fChannel] = kFALSE;
114 fReadBits[fChannel] = fgkCodeLength[fChannelCode[fChannel]];
115
116 } else { // read the next data word
117 UInt_t data = ReadBits();
118 fReadCode[fChannel] = kTRUE;
119 fReadBits[fChannel] = 3;
120 if (fChannelCode[fChannel] == 0) { // set the time bin
121 fTimeBin[fChannel] = data;
122 } else if (fChannelCode[fChannel] == 1) { // next anode
123 fTimeBin[fChannel] = 0;
124 fAnode[fChannel]++;
125 } else { // ADC signal data
126 fSignal = DecompAmbra(data + (1 << fChannelCode[fChannel]) +
127 fLowThreshold[fChannel]);
128 fCoord1 = fAnode[fChannel];
129 fCoord2 = fTimeBin[fChannel];
130 fTimeBin[fChannel]++;
131 return kTRUE;
132 }
133 }
134 }
135 }
136 return kFALSE;
137}
138
139
140Int_t AliITSRawStreamSDDv3::GetJitter() {
141
38300302 142 // Reads the value of the jitter between L0 and pascal stop
143 // written in the last word of the buffer
144
1ba0280f 145 if (!fRawReader->ReadNextInt(fData)){
146 Error("GetJitter","Jitter word not found!!");
147 return -1; // read last word
148 }
149 if ( (fData&0xff000000) != 0xff000000) {
150 Error("GetJitter","wrong mask on Jitter word (0xffxxxxxx): %8.8x",fData);
151 return -1; // read last word
152 }
153 fJitter = fData&0x000000ff;
154 if (fJitter<0x7 || fJitter>0xe) {
155 Warning("GetJitter","Unexpected jitter value %2.2x (%8.8x)",fJitter,fData);
156 return fJitter; // read last word
157 }
158
159 if (fRawReader->ReadNextInt(fData)){
160 Error("GetJitter","The equipment payload contains something after jitter");
161 return -1; // read last word
162 }
163 return fJitter;
164}
165
166