AliEveEventManager
[u/mrichter/AliRoot.git] / HLT / RCU / AliHLTAltroChannelSelectorComponent.cxx
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3e6ec852 1// $Id$
2
13398559 3//**************************************************************************
4//* This file is property of and copyright by the ALICE HLT Project *
5//* ALICE Experiment at CERN, All rights reserved. *
6//* *
7//* Primary Authors: Matthias Richter <Matthias.Richter@ift.uib.no> *
8//* for The ALICE HLT Project. *
9//* *
10//* Permission to use, copy, modify and distribute this software and its *
11//* documentation strictly for non-commercial purposes is hereby granted *
12//* without fee, provided that the above copyright notice appears in all *
13//* copies and that both the copyright notice and this permission notice *
14//* appear in the supporting documentation. The authors make no claims *
15//* about the suitability of this software for any purpose. It is *
16//* provided "as is" without express or implied warranty. *
17//**************************************************************************
3e6ec852 18
19/** @file AliHLTAltroChannelSelectorComponent.cxx
20 @author Matthias Richter
21 @date
13398559 22 @brief A filter/selective readout component for Altro data.
23*/
3e6ec852 24
25// see header file for class documentation
26// or
27// refer to README to build package
28// or
29// visit http://web.ift.uib.no/~kjeks/doc/alice-hlt
30
e1440dab 31#include <cassert>
3e6ec852 32#include "AliHLTAltroChannelSelectorComponent.h"
4ca5858d 33#include "AliAltroDecoder.h"
34#include "AliAltroData.h"
3e6ec852 35
36/** ROOT macro for the implementation of ROOT specific class methods */
37ClassImp(AliHLTAltroChannelSelectorComponent)
38
39AliHLTAltroChannelSelectorComponent::AliHLTAltroChannelSelectorComponent()
40 :
e1440dab 41 AliHLTProcessor(),
4ca5858d 42 fSkipCorrupted(false),
43 fTalkative(false)
3e6ec852 44{
45 // see header file for class documentation
46 // or
47 // refer to README to build package
48 // or
49 // visit http://web.ift.uib.no/~kjeks/doc/alice-hlt
50}
51
52AliHLTAltroChannelSelectorComponent::~AliHLTAltroChannelSelectorComponent()
53{
54 // see header file for class documentation
55}
56
57const char* AliHLTAltroChannelSelectorComponent::GetComponentID()
58{
59 // see header file for class documentation
60 return "AltroChannelSelector";
61}
62
63void AliHLTAltroChannelSelectorComponent::GetInputDataTypes(AliHLTComponentDataTypeList& list)
64{
65 // see header file for class documentation
66 list.clear();
67 list.push_back(kAliHLTDataTypeDDLRaw|kAliHLTDataOriginTPC);
64defa03 68 list.push_back(kAliHLTDataTypeHwAddr16);
3e6ec852 69}
70
71AliHLTComponentDataType AliHLTAltroChannelSelectorComponent::GetOutputDataType()
72{
73 // see header file for class documentation
74 return kAliHLTDataTypeDDLRaw|kAliHLTDataOriginTPC;
75}
76
77void AliHLTAltroChannelSelectorComponent::GetOutputDataSize(unsigned long& constBase, double& inputMultiplier)
78{
79 // see header file for class documentation
80 constBase=0;
81 inputMultiplier=1.0;
82}
83
84AliHLTComponent* AliHLTAltroChannelSelectorComponent::Spawn()
85{
86 // see header file for class documentation
87 return new AliHLTAltroChannelSelectorComponent;
88}
89
90int AliHLTAltroChannelSelectorComponent::DoInit(int argc, const char** argv)
91{
92 // see header file for class documentation
93 int iResult=0;
94 TString argument="";
e1440dab 95 bool bMissingParam=0;
3e6ec852 96 for (int i=0; i<argc && iResult>=0; i++) {
97 argument=argv[i];
98 if (argument.IsNull()) continue;
99
4ca5858d 100 // -skip-corrupted
101 if (argument.CompareTo("-skip-corrupted")==0) {
102 fSkipCorrupted=true;
103
104 // -talkative
105 } else if (argument.CompareTo("-talkative")==0) {
106 fTalkative=true;
3e6ec852 107 } else {
4ca5858d 108 HLTError("unknown argument %s", argument.Data());
3e6ec852 109 iResult=-EINVAL;
110 }
111 }
112
e1440dab 113 if (bMissingParam) {
114 HLTError("missing parameter for argument %s", argument.Data());
115 iResult=-EINVAL;
116 }
117
3e6ec852 118 return iResult;
119}
120
121int AliHLTAltroChannelSelectorComponent::DoDeinit()
122{
123 // see header file for class documentation
124 return 0;
125}
126
127int AliHLTAltroChannelSelectorComponent::DoEvent(const AliHLTComponentEventData& evtData,
128 const AliHLTComponentBlockData* blocks,
129 AliHLTComponentTriggerData& /*trigData*/,
130 AliHLTUInt8_t* outputPtr,
131 AliHLTUInt32_t& size,
132 AliHLTComponentBlockDataList& outputBlocks )
133{
134 // see header file for class documentation
135 int iResult=0;
4ca5858d 136 const int cdhSize=32;
3e6ec852 137
e1440dab 138 // process the DLL input
139 int blockno=0;
1d337632 140 const AliHLTComponentBlockData* pDesc=NULL;
141
4ca5858d 142 AliAltroDecoder* decoder=NULL;
143 for (pDesc=GetFirstInputBlock(kAliHLTDataTypeDDLRaw); pDesc!=NULL; pDesc=GetNextInputBlock(), blockno++) {
144 iResult=0;
740e48ad 145 if (pDesc->fSize<=32) continue;
e1440dab 146
147 // search for the active pad information
64defa03 148 AliHLTUInt16_t* pActiveHwAddressArray=NULL;
149 int iArraySize=0;
e1440dab 150 for (int i=0; i<(int)evtData.fBlockCnt; i++ ) {
64defa03 151 // search for selection data of hw address type
4ca5858d 152 // which matches the data specification of the block
153 if (blocks[i].fDataType==kAliHLTDataTypeHwAddr16 && blocks[i].fSpecification==pDesc->fSpecification) {
154 pActiveHwAddressArray=reinterpret_cast<AliHLTUInt16_t*>(blocks[i].fPtr);
155 iArraySize=blocks[i].fSize/sizeof(AliHLTUInt16_t);
156 break;
e1440dab 157 }
158 }
4ca5858d 159 if (pActiveHwAddressArray==NULL) {
160 HLTWarning("no block of type %s for specification 0x%08x available, data block unchanged",
64defa03 161 DataType2Text(kAliHLTDataTypeHwAddr16).c_str(),
1d337632 162 pDesc->fSpecification);
4ca5858d 163 iResult=-EFAULT;
164 }
165
166 if (decoder) delete decoder;
167 decoder=new AliAltroDecoder;
168 if (decoder->SetMemory(reinterpret_cast<UChar_t*>(pDesc->fPtr), pDesc->fSize)<0) {
169 HLTWarning("corrupted data block: initialization of decoder failed for block: %s specification %#x size %d",
170 DataType2Text(pDesc->fDataType).c_str(), pDesc->fSpecification, pDesc->fSize);
171 iResult=-EFAULT;
172 } else {
173 if (decoder->Decode()) {
174 HLTDebug("init decoder %p size %d", pDesc->fPtr,pDesc->fSize);
175 } else {
176 HLTWarning("corrupted data block: decoding failed for raw data block: %s specification %#x size %d",
177 DataType2Text(pDesc->fDataType).c_str(), pDesc->fSpecification, pDesc->fSize);
178 iResult=-EFAULT;
179 }
180 }
181
182 int rcuTrailerLength=decoder->GetRCUTrailerSize();
c67053fc 183 if (rcuTrailerLength>pDesc->fSize-cdhSize) {
4ca5858d 184 HLTWarning("corrupted data block: RCU trailer length exceeds buffer size");
185 iResult=-EFAULT;
186 }
187
188 if (iResult<0) {
e1440dab 189 // forward the whole block
1d337632 190 outputBlocks.push_back(*pDesc);
3dcae0cc 191 iResult=0;
e1440dab 192 continue;
193 }
194
1d337632 195 int iSelected=0;
196 int iTotal=0;
4ca5858d 197 int iCorrupted=0;
e1440dab 198 AliHLTUInt32_t iOutputSize=0;
4ca5858d 199 AliHLTUInt32_t iNofAltro40=0;
e1440dab 200 AliHLTUInt32_t iCapacity=size;
4ca5858d 201 AliAltroData channel;
202 while (decoder->NextChannel(&channel) && iResult>=0) {
1d337632 203 iTotal++;
64defa03 204
4ca5858d 205 int hwAddress=channel.GetHadd();
e1440dab 206 int active=0;
4ca5858d 207 for (active=0; active<iArraySize; active++) {
208 if (pActiveHwAddressArray[active]==(AliHLTUInt16_t)hwAddress) {
209 break;
e1440dab 210 }
211 }
64defa03 212 if (active>=iArraySize) {
4ca5858d 213 HLTDebug("ALTRO block %#x (%d) discarded (inactive)", hwAddress, hwAddress);
e1440dab 214 continue;
215 }
216
4ca5858d 217 // no of 10 bit words is without the fill words to fill complete 40 bit words
218 // in addition, align to complete 40 bit words (the '+3')
219 // also, the 5 bytes of the Altro trailer must be added to get the full size
220 int channelSize=((channel.GetDataSize()+3)/4)*5;
221 channelSize+=5;
222 HLTDebug("ALTRO block hwAddress 0x%08x (%d) selected (active), size %d", hwAddress, hwAddress, channelSize);
223 if (iOutputSize==0) {
224 // first add the RCU trailer
225 AliHLTUInt8_t* pSrc=reinterpret_cast<AliHLTUInt8_t*>(pDesc->fPtr);
226 pSrc+=pDesc->fSize-rcuTrailerLength;
227 if ((iResult=CopyBlockToEnd(outputPtr, iCapacity, iOutputSize, pSrc, rcuTrailerLength))>=0) {
228 assert(iResult==rcuTrailerLength);
229 iOutputSize+=rcuTrailerLength;
230 } else {
231 HLTError("failed to write RCU trailer of length %d for block %d, too little space in output buffer?", rcuTrailerLength, blockno);
232 iResult=-ENOSPC;
233 break;
234 }
235 }
236
237 if ((iResult=decoder->CopyBackward(outputPtr, iCapacity-iOutputSize))>=0) {
238 if (channelSize == iResult) {
239 if (channelSize%5 == 0) {
240 iNofAltro40+=channelSize/5;
241 iOutputSize+=channelSize;
e1440dab 242 } else {
4ca5858d 243 if (fTalkative) HLTWarning("corrupted ALTRO channel: incomplete 40 bit word");
244 iCorrupted++;
245 continue;
e1440dab 246 }
4ca5858d 247 } else {
248 if (fTalkative) HLTWarning("internal error: failed to copy full channel: %d out of %d bytes", iResult, channelSize);
249 iCorrupted++;
250 continue;
e1440dab 251 }
e1440dab 252 } else {
4ca5858d 253 if (fTalkative) HLTError("failed to write ALTRO channel of length %d for block %d", channelSize, blockno);
254 // corrupted channel, but keep going
255 iCorrupted++;
256 iResult=0;
257 continue;
e1440dab 258 }
4ca5858d 259 iSelected++;
e1440dab 260 }
261 if (iResult>=0) {
262 // write the common data header
1d337632 263 if ((iResult=CopyBlockToEnd(outputPtr, iCapacity, iOutputSize, pDesc->fPtr, cdhSize))>=0) {
e1440dab 264 assert(iResult==cdhSize);
265 iOutputSize+=cdhSize;
266
267 // set new length of the data block
4ca5858d 268 AliHLTUInt32_t* pCdhSize=reinterpret_cast<AliHLTUInt32_t*>(outputPtr+iCapacity-iOutputSize);
e1440dab 269 *pCdhSize=iOutputSize;
270
4ca5858d 271 // set number of Altro words
272 AliHLTUInt32_t* pNofAltro40=reinterpret_cast<AliHLTUInt32_t*>(outputPtr+iCapacity-rcuTrailerLength);
273 *pNofAltro40=iNofAltro40;
274
e1440dab 275 // insert block descriptor
276 AliHLTComponentBlockData bd;
277 FillBlockData(bd);
278 bd.fOffset=iCapacity-iOutputSize;
279 bd.fSize=iOutputSize;
1d337632 280 bd.fDataType=pDesc->fDataType;
281 bd.fSpecification=pDesc->fSpecification;
e1440dab 282 outputBlocks.push_back(bd);
283 iCapacity-=iOutputSize;
284 } else {
285 HLTError("failed to write CDH of length %d for block %d", cdhSize, blockno);
286 break;
287 }
288 }
4ca5858d 289 HLTInfo("data block %d (0x%08x): selected %d out of %d ALTRO channel(s), %d corrupted channels skipped", blockno, pDesc->fSpecification, iSelected, iTotal, iCorrupted);
3e6ec852 290 }
4ca5858d 291 if (decoder) delete decoder;
3e6ec852 292
e1440dab 293 if (iResult<0) {
294 outputBlocks.clear();
3e6ec852 295 }
296
e1440dab 297 // !!! do not change the size since the output buffer is filled from the end !!!
298
299 return iResult;
300}
301
302int AliHLTAltroChannelSelectorComponent::CopyBlockToEnd(AliHLTUInt8_t* pTgt, unsigned capacity, unsigned position, void* pSrc, unsigned size)
303{
304 int iResult=0;
305 if (pTgt==NULL || pSrc==NULL) return -EINVAL;
306 if (capacity-position<size) return -ENOSPC;
307
308 memcpy(pTgt+(capacity-position-size), pSrc, size);
309 iResult=size;
310
3e6ec852 311 return iResult;
312}