1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
18 //____________________________________________________________________
20 // Buffer to read RAW ALTRO FMD format from a AliRawReader
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.
28 #include "AliFMDRawStream.h" // ALIFMDRAWSTREAM_H
29 // #include <AliRawReader.h> // ALIRAWREADER_H
30 #include "AliFMDParameters.h"
31 // #include <AliLog.h>
32 #include "AliFMDDebug.h" // Better debug macros
34 // #include <iostream>
35 #include "AliRawReader.h"
38 //____________________________________________________________________
39 ClassImp(AliFMDRawStream)
41 ; // This is here to keep Emacs for indenting the next line
44 //____________________________________________________________________
45 AliFMDRawStream::AliFMDRawStream(AliRawReader* reader)
46 : AliAltroRawStream(reader)
54 //_____________________________________________________________________________
56 AliFMDRawStream::ReadChannel(UInt_t& ddl, UInt_t& addr,
57 UInt_t& len, volatile UShort_t* data)
59 // Read one channel and return. Returns 0 when there's no more
62 static Int_t last = 0xFFFF; // 0xFFFF means signal is used
67 AliFMDDebug(30, ("Last is 0x%x, so reading a new word", last));
70 AliFMDDebug(15, ("Read word # %d (!next)", l));
71 addr = GetPrevHWAddress();
72 ddl = (GetPrevDDLNumber() < 0 ? UINT_MAX: GetPrevDDLNumber());
73 len = l+1; // Need to add one - l points to last valid index
78 if (GetHWAddress() != GetPrevHWAddress() && GetPrevHWAddress() >= 0) {
79 AliFMDDebug(15, ("New hardware address, was 0x%x, now 0x%x",
80 GetPrevHWAddress(), GetHWAddress()));
81 addr = GetPrevHWAddress();
82 ddl = (GetPrevDDLNumber() < 0 ? UINT_MAX : GetPrevDDLNumber());
83 len = l+1; // Need to add one - l points to last valid index
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();
92 AliWarning(Form("Bunch length %0d is less than 0 for "
93 "DDL %4d address 0x%03x",
99 // Sanity check - if the current time is less than 0, then read
100 // until we get a new bunch.
103 AliWarning(Form("Time %0d is less than 0 for DDL %4d address 0x%03x",
108 l = TMath::Max(l, t);
112 AliFMDDebug(signal > 512 ? 1 : 0, ("Signal @ %d (%d) is %d",
120 //_____________________________________________________________________________