restore threshold getters after parameter dynamics update (fw v. >= A012)
[u/mrichter/AliRoot.git] / FMD / AliFMDRawStream.cxx
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4347b38f 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
e802be3e 18//____________________________________________________________________
4347b38f 19//
20// Buffer to read RAW ALTRO FMD format from a AliRawReader
21//
7684b53c 22// This class derives from AliAltroBuffer, but overloads the memer
23// function Next to do some extra processing. In particular, it tries
24// to autodetect the sample rate. If zero-suppression was used when
25// writing the raw data, then the automatic discovery will not work,
26// and the sample rate should be set explicitly.
4347b38f 27//
e802be3e 28#include "AliFMDRawStream.h" // ALIFMDRAWSTREAM_H
02a27b50 29// #include <AliRawReader.h> // ALIRAWREADER_H
c2fc1258 30#include "AliFMDParameters.h"
f95a63c4 31// #include <AliLog.h>
32#include "AliFMDDebug.h" // Better debug macros
02a27b50 33// #include <iomanip>
34// #include <iostream>
a6d06a4f 35#include "AliRawReader.h"
7af3df7f 36#include <climits>
4347b38f 37
38//____________________________________________________________________
925e6570 39ClassImp(AliFMDRawStream)
1a1fdef7 40#if 0
41 ; // This is here to keep Emacs for indenting the next line
42#endif
4347b38f 43
44//____________________________________________________________________
c2fc1258 45AliFMDRawStream::AliFMDRawStream(AliRawReader* reader)
46 : AliAltroRawStream(reader)
e802be3e 47{
02a27b50 48 // CTOR
a6d06a4f 49 reader->Reset();
55f0ce5b 50 // Select FMD DDL's
362c9d61 51 SelectRawData("FMD");
1e8f773e 52}
53
54//_____________________________________________________________________________
55Bool_t
c2fc1258 56AliFMDRawStream::ReadChannel(UInt_t& ddl, UInt_t& addr,
cce354f6 57 UInt_t& len, volatile UShort_t* data)
1e8f773e 58{
02a27b50 59 // Read one channel and return. Returns 0 when there's no more
60 // data.
c2fc1258 61 Int_t l = 0;
62 static Int_t last = 0xFFFF; // 0xFFFF means signal is used
63 Bool_t next = kTRUE;
64 do {
65 Int_t signal = last;
66 if (last > 0x3FF) {
f95a63c4 67 AliFMDDebug(30, ("Last is 0x%x, so reading a new word", last));
c2fc1258 68 next = Next();
2b893216 69 if(!next){
2aeec17d 70 AliFMDDebug(15, ("Read word # %d (!next)", l));
2b893216 71 addr = GetPrevHWAddress();
89b48c68 72 ddl = (GetPrevDDLNumber() < 0 ? UINT_MAX: UInt_t(GetPrevDDLNumber()));
2b893216 73 len = l+1; // Need to add one - l points to last valid index
74 last = signal;
75 break;
76 }
c2fc1258 77 signal = GetSignal();
78 if (GetHWAddress() != GetPrevHWAddress() && GetPrevHWAddress() >= 0) {
f95a63c4 79 AliFMDDebug(15, ("New hardware address, was 0x%x, now 0x%x",
c2fc1258 80 GetPrevHWAddress(), GetHWAddress()));
81 addr = GetPrevHWAddress();
89b48c68 82 ddl = (GetPrevDDLNumber() < 0 ? UINT_MAX : UInt_t(GetPrevDDLNumber()));
55f0ce5b 83 len = l+1; // Need to add one - l points to last valid index
c2fc1258 84 last = signal;
85 break;
86 }
1e8f773e 87 }
5cf05dbb 88 // Sanity check - if the total bunch length is less than 1, then
89 // read until we get the next bunch.
90 Int_t b = GetTimeLength();
91 if (b < 1) {
92 AliWarning(Form("Bunch length %0d is less than 0 for "
93 "DDL %4d address 0x%03x",
94 b, ddl, addr));
95 last = 0xFFFF;
96 continue;
97 }
98
99 // Sanity check - if the current time is less than 0, then read
100 // until we get a new bunch.
c2fc1258 101 Int_t t = GetTime();
5cf05dbb 102 if (t < 0) {
103 AliWarning(Form("Time %0d is less than 0 for DDL %4d address 0x%03x",
104 t, ddl, addr));
105 last = 0xFFFF;
106 continue;
107 }
c2fc1258 108 l = TMath::Max(l, t);
109 data[t] = signal;
110 last = 0xFFFF;
cce354f6 111#if 0
112 AliFMDDebug(signal > 512 ? 1 : 0, ("Signal @ %d (%d) is %d",
113 time, t, data[t]));
114#endif
c2fc1258 115 } while (next);
116 return next;
1e8f773e 117}
118
4347b38f 119
4347b38f 120//_____________________________________________________________________________
121//
122// EOF
123//