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/** @file |
/** @file |
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* $Source: /home/cvsmanager/yoda/techmodel/physics/S4Reader.cpp,v $ |
* $Source: /home/cvsmanager/yoda/techmodel/physics/S4Reader.cpp,v $ |
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* $Id: S4Reader.cpp,v 2.2 2004/12/09 08:48:54 kusanagi Exp $ |
* $Id: S4Reader.cpp,v 4.1 2005/03/16 16:36:23 kusanagi Exp $ |
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* $Author: kusanagi $ |
* $Author: kusanagi $ |
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* |
* |
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* Implementation of the S4Reader class. |
* Implementation of the S4Reader class. |
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*/ |
*/ |
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std::string S4Reader::GetVersionInfo(void) const { |
std::string S4Reader::GetVersionInfo(void) const { |
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return |
return |
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"$Header: /home/cvsmanager/yoda/techmodel/physics/S4Reader.cpp,v 2.2 2004/12/09 08:48:54 kusanagi Exp $"; |
"$Header: /home/cvsmanager/yoda/techmodel/physics/S4Reader.cpp,v 4.1 2005/03/16 16:36:23 kusanagi Exp $"; |
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} |
} |
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/** |
/** |
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* consequently supposing the Neutron data (12 Bytes) always present S4 start 18 Bytes before the end of the packet |
* consequently supposing the Neutron data (12 Bytes) always present S4 start 18 Bytes before the end of the packet |
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*/ |
*/ |
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void S4Reader::RunEvent(int EventNumber, const char subData[], long int length) { |
void S4Reader::RunEvent(int EventNumber, const char subData[], long int length) { |
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//char *data = new char[lenght]; |
int offset; |
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//memcpy(data, subData, lenght); |
int index = haveData(&*subData, length); |
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int offset = length - 18; |
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s4->S4_REG_STATUS = (((UINT8)subData[offset])&0xF0); |
if (index > 0){ |
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s4->S4_DATA = ((((UINT16)subData[offset]<<8)&0x0FFF) + (((UINT16)subData[offset+1])&0x00FF)); |
int offset = length - index; |
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s4->S4_CMD_NUM = (((UINT8)subData[offset+2])&0xFF); |
s4->S4_REG_STATUS = (((UINT8)subData[offset])&0xF0); |
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s4->S4_RESP_LENGHT = ((((UINT16)subData[offset+3]<<8)&0xFF00) + (((UINT16)subData[offset+4])&0x00FF)); |
s4->S4_DATA = ((((UINT16)subData[offset]<<8)&0x0FFF) + (((UINT16)subData[offset+1])&0x00FF)); |
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s4->S4_OVERALL_CHKCODE = (((UINT8)subData[offset+5])&0xFF); |
s4->S4_CMD_NUM = (((UINT8)subData[offset+2])&0xFF); |
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s4->S4_RESP_LENGHT = ((((UINT16)subData[offset+3]<<8)&0xFF00) + (((UINT16)subData[offset+4])&0x00FF)); |
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s4->S4_OVERALL_CHKCODE = (((UINT8)subData[offset+5])&0xFF); |
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s4->unpackError = 0; |
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} else { |
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s4->unpackError = 1; |
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} |
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} |
} |
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/* |
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* |
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* @return int |
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* It return the index, starting from the end of data[] parameter, which |
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* is the starting byte of the S4 data. |
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* |
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*/ |
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/** |
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* Check if S4Data are present. |
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* @param const char data[] - Physics data |
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* @param long int lenght - Lenght of data[] |
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* @return int represent the index from the end of data[] |
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* from which S4 data starts |
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*/ |
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int S4Reader::haveData(const char data[], long int length){ |
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int ret = 0; |
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/* I start 20 bytes from the end because we have three cases: |
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* |
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* 1) S4 (4bytes) + NeutronDetector (12bytes) //END PACKET |
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* 2) S4 (4bytes) //END PACKET |
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* 3) //END PACKET |
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* |
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* so in anycase I expect to find the data into the last 20 bytes |
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* Anyway, it will be a MUST to implements also the check of the CRC |
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* on the S4 data to have a better confidence on the data; the crc algorithm |
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* sholud be the same of the Tracker |
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* |
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*/ |
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//Check the existence of NeutronDetector data |
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if (((UINT8)data[length - 1] == 0x0F)&&((UINT8)data[length - 5] == 0x0F)&&((UINT8)data[length - 9] == 0x0F) && |
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((UINT8)data[length - 2] == 0x00)&&((UINT8)data[length - 6] == 0x00)&&((UINT8)data[length - 10] == 0x00)) { |
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//Chech the existance of S4 data before NeutronDetector |
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if (((UINT8)data[length - 14] == 0x03) && |
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((UINT8)data[length - 15] == 0x00) && |
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((UINT8)data[length - 16] == 0xD8)) ret = 18; |
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//NeutronDetector data does not exists |
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} else { |
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//Chech the existance of S4 data at the end of the Physics packet |
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if ( ((UINT8)data[length - 2] == 0x03) && |
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((UINT8)data[length - 3] == 0x00) && |
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((UINT8)data[length - 4] == 0xD8)) ret = 6; |
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} |
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return ret; |
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} |