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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 | // Buffer to read RAW ALTRO FMD format from a AliRawReader | |
21 | // | |
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. | |
27 | // | |
28 | #include "AliFMDRawStream.h" // ALIFMDRAWSTREAM_H | |
29 | // #include <AliRawReader.h> // ALIRAWREADER_H | |
30 | #include "AliFMDParameters.h" | |
31 | #include <AliLog.h> | |
32 | // #include <iomanip> | |
33 | // #include <iostream> | |
34 | ||
35 | //____________________________________________________________________ | |
36 | ClassImp(AliFMDRawStream) | |
37 | #if 0 | |
38 | ; // This is here to keep Emacs for indenting the next line | |
39 | #endif | |
40 | ||
41 | //____________________________________________________________________ | |
42 | AliFMDRawStream::AliFMDRawStream(AliRawReader* reader) | |
43 | : AliAltroRawStream(reader) | |
44 | { | |
45 | // CTOR | |
46 | fNoAltroMapping = kFALSE; | |
47 | // Select FMD DDL's | |
48 | SelectRawData(AliFMDParameters::kBaseDDL>>8); | |
49 | } | |
50 | ||
51 | //_____________________________________________________________________________ | |
52 | Bool_t | |
53 | AliFMDRawStream::ReadChannel(UInt_t& ddl, UInt_t& addr, | |
54 | UInt_t& len, UShort_t* data) | |
55 | { | |
56 | // Read one channel and return. Returns 0 when there's no more | |
57 | // data. | |
58 | Int_t l = 0; | |
59 | static Int_t last = 0xFFFF; // 0xFFFF means signal is used | |
60 | Bool_t next = kTRUE; | |
61 | do { | |
62 | Int_t signal = last; | |
63 | if (last > 0x3FF) { | |
64 | AliDebug(30, Form("Last is 0x%x, so reading a new word", last)); | |
65 | next = Next(); | |
66 | if (!next) break; | |
67 | signal = GetSignal(); | |
68 | if (GetHWAddress() != GetPrevHWAddress() && GetPrevHWAddress() >= 0) { | |
69 | AliDebug(15, Form("New hardware address, was 0x%x, now 0x%x", | |
70 | GetPrevHWAddress(), GetHWAddress())); | |
71 | addr = GetPrevHWAddress(); | |
72 | ddl = AliFMDParameters::kBaseDDL + GetPrevDDLNumber(); | |
73 | len = l+1; // Need to add one - l points to last valid index | |
74 | last = signal; | |
75 | break; | |
76 | } | |
77 | } | |
78 | Int_t t = GetTime(); | |
79 | l = TMath::Max(l, t); | |
80 | data[t] = signal; | |
81 | last = 0xFFFF; | |
82 | } while (next); | |
83 | return next; | |
84 | } | |
85 | ||
86 | ||
87 | //_____________________________________________________________________________ | |
88 | // | |
89 | // EOF | |
90 | // |