PamOffLineSW/techmodel/McmdReader.cpp

/** @file
 * $Source: /afs/ba.infn.it/user/pamela/src/CVS/chewbacca/PamOffLineSW/techmodel/McmdReader.cpp,v $
 * $Id: McmdReader.cpp,v 1.2 2008-10-01 09:53:42 mocchiut Exp $
 * $Author: mocchiut $
 *
 * Implementation of the McmdReader class.
 */

extern "C" {
#include "CRC.h"
}
#include "ReaderAlgorithms.h"
using namespace pamela::techmodel;

/**
 * Constructor.
 */
McmdReader::McmdReader(void) :
  TechmodelAlgorithm(PacketType::Mcmd, "Mcmd") {
  Mcmd = new McmdEvent();
}

/**
 * Get a string with the version info of the algorithm.
 */
std::string McmdReader::GetVersionInfo(void) const {
  return "$Header: /afs/ba.infn.it/user/pamela/src/CVS/chewbacca/PamOffLineSW/techmodel/McmdReader.cpp,v 1.2 2008-10-01 09:53:42 mocchiut Exp $\n";
}

/**
 * Initialize the algorithm with a special run. This will initialize the
 * event reader routines for all packet types.
 */
void McmdReader::Init(PamelaRun *run) {
  // logger->debug(_T("Initialize"));
  // SetInputStream(run);
  run->WriteSubPacket(this, &Mcmd, Mcmd->Class());
}

/**
 * Unpack the Mcmd event
 *  Each subpacket is prafaceded by 4 OBT bytes.
 *  The elementar structure is a kind of
 * --------CPU - OBT---------------------------------
 *  OBT     - 4 Bytes
 * --------Start Sub-Packet---------------------------------
 *  SeqID  - 2 Bytes
 *  T          - 1 bit       | spare  - 7 bits | Mcmd-ID - 1 byte
 *  Spare  - 4 bits     | Mcmd Lenght 12 bits
 *  Time Tag      - 4 Bytes
 *  DATA            - McmdLength * 2 Bytes
 *  don't care    - 1 Byte
 *  END-ID         - 1 Byte is the sum of subPacket Bytes module 256
 * --------End Sub-Packet---------------------------------
 * --------CPU CRC-16 on OBT + subPacket---------------------------------
 * subCRC        - 2 Bytes
 * this structure is repeated one or more times.
 * The last 2 Bytes are CRC16 computed by CPU on all previous (OBT + subpacket data + subCRC) repetitions

 * @Event Number
 * @length is the size in bytes of the event (or packet)
 */
void McmdReader::PKT_RunEvent(char* mysubData, long int length) throw (WrongCRCException_PKTUsed) {
  stringstream oss;
  string msg;

  int i = 0;
  const int obt_len = 4;
  const int subHeader_len = 10;
  const int subTrailer_len = 2;
  const int subPckCRC_len = 2;
  long int dataLength = 0;

  char OBT[obt_len] = { 0 };
  char subHeader[subHeader_len] = { 0 };
  char subTrailer[subTrailer_len] = { 0 };
  char subPckCRC[subPckCRC_len] = { 0 };
  char* subData = NULL;

  UINT16 subCRC = 0; //CRC of the subpacket (updated as subPckt is read)
  UINT16 readCRC = 0; //CRC read from the subpacket
  UINT16 partialCRC = 0; //partial CRC updated as mcmd packet is read (to compare with CRC read in the total Mcmd header)
  McmdRecord *rec;

  Mcmd->Records->Clear();
  TClonesArray &recs = *(Mcmd->Records);

  int start = 0;
  //    while(start < (length)) {
  //      printf(" %i => %X \n",start,(UINT8)mysubData[start]);
  //      start++;
  //    };
  //    start=0;

  while (start < (length - 2 - obt_len - subTrailer_len - subTrailer_len - subPckCRC_len))
  //    while(start < (length-2))
  {
    //    printf(" 1data %X \n",(UINT8)mysubData[start]);
    //Read the OBT preceeding the subpacket then calculate a partial CRC for it
    //and update the partialCRC
    for (int m = start; m < start + obt_len; m++) {
      OBT[m - start] = mysubData[m];
    }
    start += obt_len;

    //    printf(" 2data %X \n",(UINT8)mysubData[start]);
    //    printf(" 2data %X \n",(UINT8)mysubData[start]+1);
    subCRC = CM_Compute_CRC16(0, (BYTE*) &OBT, obt_len);
    partialCRC = CM_Compute_CRC16(partialCRC, (BYTE*) &OBT, obt_len);
    //Read the header for the subPacket and read mcmdLength
    //12 is the total lenght of subHeader + subTrailer
    for (int m = start; m < start + subHeader_len; m++) {
      subHeader[m - start] = mysubData[m];
    }
    start += subHeader_len;

    //    printf(" 3data %X \n",(UINT8)mysubData[start]);
    //    printf(" 3data %X \n",(UINT8)mysubData[start+1]);
    subCRC = CM_Compute_CRC16(subCRC, (BYTE*) &subHeader, subHeader_len);
    partialCRC = CM_Compute_CRC16(partialCRC, (BYTE*) &subHeader, subHeader_len);
    dataLength = (((0x0fff) & ((UINT16)subHeader[4])) << 8 | ((UINT16)subHeader[5]) * 2) - subHeader_len
        - subTrailer_len;
    //      printf(" datalenght = %i  subh 4 %X subd 5 %X \n",dataLength,(UINT8)subHeader[4],(UINT8)subHeader[5]);
    //the line below is exactly how it was in the original version
    if (dataLength < 0)
      break; //it should throw an exception ***TBD***
    //I add also this check
    if (dataLength + start > (length - 2 - subTrailer_len - subPckCRC_len)) {
      oss.str("");
      oss << "MCMD: Error in the MCMD Packet lenght, it is not " << length;
      msg = oss.str();
      PamOffLineSW::mainLogUtil->logWarning(msg);
      break; //it should throw an exception ***TBD***
    }

    //read subpacket data according to data length then calculate partial CRC for data
    //and update the partialCRC

    subData = new char[dataLength];
    for (int m = start; m < start + dataLength; m++) {
      subData[m - start] = mysubData[m];
    }
    start += dataLength;

    //    printf(" 4data %X \n",(UINT8)mysubData[start]);
    //    printf(" 4data %X \n",(UINT8)mysubData[start+1]);
    for (int jj = 0; jj < dataLength; jj++) {
      subCRC = CM_Compute_CRC16(subCRC, (BYTE*) (subData + jj), 1);
      partialCRC = CM_Compute_CRC16(partialCRC, (BYTE*) (subData + jj), 1);
    }

    //Read the CRC inside of MCMD
    //To check sum of all sub packet data, module 256 ****TBD****
    for (int m = start; m < start + subTrailer_len; m++) {
      subTrailer[m - start] = mysubData[m];
    }
    start += subTrailer_len;
    //     printf(" 5data %X \n",(UINT8)mysubData[start]);
    //     printf(" 5data %X \n",(UINT8)mysubData[start+1]);

    subCRC = CM_Compute_CRC16(subCRC, (BYTE*) &subTrailer, 2);
    partialCRC = CM_Compute_CRC16(partialCRC, (BYTE*) &subTrailer, 2);
    //Read the CRC of subPacket
    for (int m = start; m < start + subPckCRC_len; m++) {
      subPckCRC[m - start] = mysubData[m];
    }
    start += subPckCRC_len;

    partialCRC = CM_Compute_CRC16(partialCRC, (BYTE*) &subPckCRC, 2);
    readCRC = (((BYTE)subPckCRC[0]) << 8) + ((BYTE)subPckCRC[1]);

    //finally check if the RecordCRC is correct
    //and finally update the partialCRC
    //TO DO - if one CRC is wrong also the total one will be corrupted
    //     printf(" subCRC %X readCRC %X \n",subCRC,readCRC);
    if (subCRC == readCRC) {
      rec = new (recs[i++]) McmdRecord(); //aggiungo un nuovo McmdRecord all'evento
      rec->MCMD_RECORD_OBT = (((UINT32)OBT[0] << 24) & 0xFF000000) + (((UINT32)OBT[1] << 16) & 0x00FF0000)
          + (((UINT32)OBT[2] << 8) & 0x0000FF00) + (((UINT32)OBT[3]) & 0x000000FF);
      rec->SeqID = (((BYTE)subHeader[0] << 8) & 0xFF00) + (((BYTE)subHeader[1]) & 0x00FF);
      rec->Tbit = ((BYTE)((subHeader[2] & 0x80)) >> 7);
      rec->ID1 = (BYTE)subHeader[3];
      rec->McmdLength = (0x0fff) & (((UINT16)(subHeader[4] << 8)) + ((UINT16)subHeader[5]));
      rec->TimeTag = (((UINT32)subHeader[6] << 24) & 0xFF000000) + (((UINT32)subHeader[7] << 16) & 0x00FF0000) + (((UINT32)subHeader[8]
          << 8) & 0x0000FF00) + (((UINT32)subHeader[9]) & 0x000000FF);
      rec->endID = (BYTE)subTrailer[1];

      rec->McmdData = new TArrayC(dataLength, subData);
      //     delete [] subData;
    }
    else {
      oss.str("");
      oss << "Wrong CRC on Subpacket internal to MCMD Packet ";
      msg = oss.str();
      PamOffLineSW::mainLogUtil->logAll(msg);
    }

    delete[] subData;
  }

  if (start != length - 2) {
    oss.str("");
    oss << "MCMD: Error in the MCMD Packet lenght (start!=length-2), it is not " << length;
    msg = oss.str();
    PamOffLineSW::mainLogUtil->logWarning(msg);
  }

  //in the end compare the calculated partial CRC with the MCMD packet CRC
  readCRC = (((UINT16)(mysubData[length - 2] << 8)) & 0xFF00) + (((UINT16)mysubData[length - 1]) & 0x00FF);
  //readCRC = (((UINT16)(mysubData[length - 1]<<8))&0xFF00) + (((UINT16)mysubData[length])&0x00FF);
  //
  //    printf(" CICCIOEND readCRC %X partialCRC %X \n",(UINT16)readCRC,(UINT16)partialCRC);
  //    if(partialCRC != readCRC) throw WrongCRCException(" Wrong Global CRC for MCMD Packet ");
  if (partialCRC != readCRC) {
    oss.str("");
    oss << "Wrong CRC for MCMD Packet: " << " CRC COMPUTED= " << partialCRC << " CRC READ=  " << readCRC;
    msg = oss.str();
    PamOffLineSW::mainLogUtil->logWarning(msg);
    throw WrongCRCException_PKTUsed(" Wrong CRC for MCMD Packet. ");
  };
}

1	mocchiut	1.1	/** @file
2	mocchiut	1.2	* $Source: /afs/ba.infn.it/user/pamela/src/CVS/chewbacca/PamOffLineSW/techmodel/McmdReader.cpp,v $
3	pam-fi	1.3	* $Id: McmdReader.cpp,v 1.2 2008-10-01 09:53:42 mocchiut Exp $
4	mocchiut	1.2	* $Author: mocchiut $
5	pam-fi	1.3	*
6	mocchiut	1.1	* Implementation of the McmdReader class.
7			*/
8
9			extern "C" {
10	pam-fi	1.3	#include "CRC.h"
11	mocchiut	1.1	}
12			#include "ReaderAlgorithms.h"
13			using namespace pamela::techmodel;
14
15			/**
16	pam-fi	1.3	* Constructor.
17	mocchiut	1.1	*/
18	pam-fi	1.3	McmdReader::McmdReader(void) :
19			TechmodelAlgorithm(PacketType::Mcmd, "Mcmd") {
20	mocchiut	1.1	Mcmd = new McmdEvent();
21			}
22
23			/**
24			* Get a string with the version info of the algorithm.
25			*/
26			std::string McmdReader::GetVersionInfo(void) const {
27	pam-fi	1.3	return "$Header: /afs/ba.infn.it/user/pamela/src/CVS/chewbacca/PamOffLineSW/techmodel/McmdReader.cpp,v 1.2 2008-10-01 09:53:42 mocchiut Exp $\n";
28	mocchiut	1.1	}
29
30			/**
31			* Initialize the algorithm with a special run. This will initialize the
32			* event reader routines for all packet types.
33	pam-fi	1.3	*/
34	mocchiut	1.1	void McmdReader::Init(PamelaRun *run) {
35	pam-fi	1.3	// logger->debug(_T("Initialize"));
36			// SetInputStream(run);
37	mocchiut	1.1	run->WriteSubPacket(this, &Mcmd, Mcmd->Class());
38			}
39
40			/**
41			* Unpack the Mcmd event
42			* Each subpacket is prafaceded by 4 OBT bytes.
43	pam-fi	1.3	* The elementar structure is a kind of
44	mocchiut	1.1	* --------CPU - OBT---------------------------------
45			* OBT - 4 Bytes
46			* --------Start Sub-Packet---------------------------------
47			* SeqID - 2 Bytes
48			* T - 1 bit \| spare - 7 bits \| Mcmd-ID - 1 byte
49			* Spare - 4 bits \| Mcmd Lenght 12 bits
50			* Time Tag - 4 Bytes
51			* DATA - McmdLength * 2 Bytes
52			* don't care - 1 Byte
53			* END-ID - 1 Byte is the sum of subPacket Bytes module 256
54			* --------End Sub-Packet---------------------------------
55			* --------CPU CRC-16 on OBT + subPacket---------------------------------
56			* subCRC - 2 Bytes
57			* this structure is repeated one or more times.
58			* The last 2 Bytes are CRC16 computed by CPU on all previous (OBT + subpacket data + subCRC) repetitions
59
60			* @Event Number
61			* @length is the size in bytes of the event (or packet)
62			*/
63	pam-fi	1.3	void McmdReader::PKT_RunEvent(char* mysubData, long int length) throw (WrongCRCException_PKTUsed) {
64			stringstream oss;
65			string msg;
66
67			int i = 0;
68			const int obt_len = 4;
69			const int subHeader_len = 10;
70			const int subTrailer_len = 2;
71			const int subPckCRC_len = 2;
72			long int dataLength = 0;
73
74			char OBT[obt_len] = { 0 };
75			char subHeader[subHeader_len] = { 0 };
76			char subTrailer[subTrailer_len] = { 0 };
77			char subPckCRC[subPckCRC_len] = { 0 };
78			char* subData = NULL;
79
80			UINT16 subCRC = 0; //CRC of the subpacket (updated as subPckt is read)
81			UINT16 readCRC = 0; //CRC read from the subpacket
82			UINT16 partialCRC = 0; //partial CRC updated as mcmd packet is read (to compare with CRC read in the total Mcmd header)
83			McmdRecord *rec;
84
85			Mcmd->Records->Clear();
86			TClonesArray &recs = *(Mcmd->Records);
87
88			int start = 0;
89			// while(start < (length)) {
90			// printf(" %i => %X \n",start,(UINT8)mysubData[start]);
91			// start++;
92			// };
93			// start=0;
94
95			while (start < (length - 2 - obt_len - subTrailer_len - subTrailer_len - subPckCRC_len))
96			// while(start < (length-2))
97			{
98			// printf(" 1data %X \n",(UINT8)mysubData[start]);
99			//Read the OBT preceeding the subpacket then calculate a partial CRC for it
100			//and update the partialCRC
101			for (int m = start; m < start + obt_len; m++) {
102			OBT[m - start] = mysubData[m];
103			}
104			start += obt_len;
105
106			// printf(" 2data %X \n",(UINT8)mysubData[start]);
107			// printf(" 2data %X \n",(UINT8)mysubData[start]+1);
108			subCRC = CM_Compute_CRC16(0, (BYTE*) &OBT, obt_len);
109			partialCRC = CM_Compute_CRC16(partialCRC, (BYTE*) &OBT, obt_len);
110			//Read the header for the subPacket and read mcmdLength
111			//12 is the total lenght of subHeader + subTrailer
112			for (int m = start; m < start + subHeader_len; m++) {
113			subHeader[m - start] = mysubData[m];
114			}
115			start += subHeader_len;
116
117			// printf(" 3data %X \n",(UINT8)mysubData[start]);
118			// printf(" 3data %X \n",(UINT8)mysubData[start+1]);
119			subCRC = CM_Compute_CRC16(subCRC, (BYTE*) &subHeader, subHeader_len);
120			partialCRC = CM_Compute_CRC16(partialCRC, (BYTE*) &subHeader, subHeader_len);
121			dataLength = (((0x0fff) & ((UINT16)subHeader[4])) << 8 \| ((UINT16)subHeader[5]) * 2) - subHeader_len
122			- subTrailer_len;
123			// printf(" datalenght = %i subh 4 %X subd 5 %X \n",dataLength,(UINT8)subHeader[4],(UINT8)subHeader[5]);
124			//the line below is exactly how it was in the original version
125			if (dataLength < 0)
126			break; //it should throw an exception *TBD*
127			//I add also this check
128			if (dataLength + start > (length - 2 - subTrailer_len - subPckCRC_len)) {
129			oss.str("");
130			oss << "MCMD: Error in the MCMD Packet lenght, it is not " << length;
131			msg = oss.str();
132			PamOffLineSW::mainLogUtil->logWarning(msg);
133			break; //it should throw an exception *TBD*
134			}
135
136			//read subpacket data according to data length then calculate partial CRC for data
137			//and update the partialCRC
138
139			subData = new char[dataLength];
140			for (int m = start; m < start + dataLength; m++) {
141			subData[m - start] = mysubData[m];
142			}
143			start += dataLength;
144
145			// printf(" 4data %X \n",(UINT8)mysubData[start]);
146			// printf(" 4data %X \n",(UINT8)mysubData[start+1]);
147			for (int jj = 0; jj < dataLength; jj++) {
148			subCRC = CM_Compute_CRC16(subCRC, (BYTE*) (subData + jj), 1);
149			partialCRC = CM_Compute_CRC16(partialCRC, (BYTE*) (subData + jj), 1);
150			}
151
152			//Read the CRC inside of MCMD
153			//To check sum of all sub packet data, module 256 **TBD**
154			for (int m = start; m < start + subTrailer_len; m++) {
155			subTrailer[m - start] = mysubData[m];
156			}
157			start += subTrailer_len;
158			// printf(" 5data %X \n",(UINT8)mysubData[start]);
159			// printf(" 5data %X \n",(UINT8)mysubData[start+1]);
160
161			subCRC = CM_Compute_CRC16(subCRC, (BYTE*) &subTrailer, 2);
162			partialCRC = CM_Compute_CRC16(partialCRC, (BYTE*) &subTrailer, 2);
163			//Read the CRC of subPacket
164			for (int m = start; m < start + subPckCRC_len; m++) {
165			subPckCRC[m - start] = mysubData[m];
166			}
167			start += subPckCRC_len;
168
169			partialCRC = CM_Compute_CRC16(partialCRC, (BYTE*) &subPckCRC, 2);
170			readCRC = (((BYTE)subPckCRC[0]) << 8) + ((BYTE)subPckCRC[1]);
171
172			//finally check if the RecordCRC is correct
173			//and finally update the partialCRC
174			//TO DO - if one CRC is wrong also the total one will be corrupted
175			// printf(" subCRC %X readCRC %X \n",subCRC,readCRC);
176			if (subCRC == readCRC) {
177			rec = new (recs[i++]) McmdRecord(); //aggiungo un nuovo McmdRecord all'evento
178			rec->MCMD_RECORD_OBT = (((UINT32)OBT[0] << 24) & 0xFF000000) + (((UINT32)OBT[1] << 16) & 0x00FF0000)
179			+ (((UINT32)OBT[2] << 8) & 0x0000FF00) + (((UINT32)OBT[3]) & 0x000000FF);
180			rec->SeqID = (((BYTE)subHeader[0] << 8) & 0xFF00) + (((BYTE)subHeader[1]) & 0x00FF);
181			rec->Tbit = ((BYTE)((subHeader[2] & 0x80)) >> 7);
182			rec->ID1 = (BYTE)subHeader[3];
183			rec->McmdLength = (0x0fff) & (((UINT16)(subHeader[4] << 8)) + ((UINT16)subHeader[5]));
184			rec->TimeTag = (((UINT32)subHeader[6] << 24) & 0xFF000000) + (((UINT32)subHeader[7] << 16) & 0x00FF0000) + (((UINT32)subHeader[8]
185			<< 8) & 0x0000FF00) + (((UINT32)subHeader[9]) & 0x000000FF);
186			rec->endID = (BYTE)subTrailer[1];
187
188			rec->McmdData = new TArrayC(dataLength, subData);
189			// delete [] subData;
190			}
191			else {
192			oss.str("");
193			oss << "Wrong CRC on Subpacket internal to MCMD Packet ";
194			msg = oss.str();
195			PamOffLineSW::mainLogUtil->logAll(msg);
196			}
197
198			delete[] subData;
199			}
200
201			if (start != length - 2) {
202			oss.str("");
203			oss << "MCMD: Error in the MCMD Packet lenght (start!=length-2), it is not " << length;
204			msg = oss.str();
205			PamOffLineSW::mainLogUtil->logWarning(msg);
206			}
207
208			//in the end compare the calculated partial CRC with the MCMD packet CRC
209			readCRC = (((UINT16)(mysubData[length - 2] << 8)) & 0xFF00) + (((UINT16)mysubData[length - 1]) & 0x00FF);
210			//readCRC = (((UINT16)(mysubData[length - 1]<<8))&0xFF00) + (((UINT16)mysubData[length])&0x00FF);
211			//
212			// printf(" CICCIOEND readCRC %X partialCRC %X \n",(UINT16)readCRC,(UINT16)partialCRC);
213			// if(partialCRC != readCRC) throw WrongCRCException(" Wrong Global CRC for MCMD Packet ");
214			if (partialCRC != readCRC) {
215			oss.str("");
216			oss << "Wrong CRC for MCMD Packet: " << " CRC COMPUTED= " << partialCRC << " CRC READ= " << readCRC;
217			msg = oss.str();
218			PamOffLineSW::mainLogUtil->logWarning(msg);
219			throw WrongCRCException_PKTUsed(" Wrong CRC for MCMD Packet. ");
220			};
221	mocchiut	1.1	}
222	pam-fi	1.3