50 lines
2.1 KiB
C++
50 lines
2.1 KiB
C++
/**
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* @file TcTransferFrameLocal.cpp
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* @brief This file defines the TcTransferFrameLocal class.
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* @date 27.04.2013
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* @author baetz
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*/
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#include "TcTransferFrameLocal.h"
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#include "../globalfunctions/CRC.h"
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#include "../serviceinterface/ServiceInterfaceStream.h"
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#include <string.h>
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TcTransferFrameLocal::TcTransferFrameLocal(bool bypass, bool controlCommand, uint16_t scid,
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uint8_t vcId, uint8_t sequenceNumber, uint8_t setSegmentHeader, uint8_t* data, uint16_t dataSize, uint16_t forceCrc) {
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this->frame = (tc_transfer_frame*)&localData;
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frame->header.flagsAndScid = (bypass << 5) + (controlCommand << 4) + ((scid & 0x0300) >> 8);
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frame->header.spacecraftId_l = (scid & 0x00FF);
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frame->header.vcidAndLength_h = (vcId & 0b00111111) << 2;
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frame->header.length_l = sizeof(TcTransferFramePrimaryHeader) -1;
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frame->header.sequenceNumber = sequenceNumber;
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frame->dataField = setSegmentHeader;
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if (data != NULL) {
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if (bypass && controlCommand) {
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memcpy(&(frame->dataField), data, dataSize);
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uint16_t totalSize = sizeof(TcTransferFramePrimaryHeader) + dataSize + FRAME_CRC_SIZE -1;
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frame->header.vcidAndLength_h |= (totalSize & 0x0300) >> 8;
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frame->header.length_l = (totalSize & 0x00FF);
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uint16_t crc = CRC::crc16ccitt(getFullFrame(), getFullSize() -2);
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this->getFullFrame()[getFullSize()-2] = (crc & 0xFF00) >> 8;
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this->getFullFrame()[getFullSize()-1] = (crc & 0x00FF);
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} else if (dataSize <= 1016) {
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memcpy(&(frame->dataField) +1, data, dataSize);
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uint16_t dataCrcSize = sizeof(TcTransferFramePrimaryHeader) + 1 + dataSize + FRAME_CRC_SIZE -1;
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frame->header.vcidAndLength_h |= (dataCrcSize & 0x0300) >> 8;
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frame->header.length_l = (dataCrcSize & 0x00FF);
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uint16_t crc = CRC::crc16ccitt(getFullFrame(), getFullSize() -2);
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this->getFullFrame()[getFullSize()-2] = (crc & 0xFF00) >> 8;
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this->getFullFrame()[getFullSize()-1] = (crc & 0x00FF);
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} else {
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sif::debug << "TcTransferFrameLocal: dataSize too large: " << dataSize << std::endl;
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}
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} else {
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//No data in frame
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}
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if (forceCrc != 0 ) {
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localData.data[getFullSize()-2] = (forceCrc & 0xFF00) >> 8;
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localData.data[getFullSize()-1] = (forceCrc & 0x00FF);
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}
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}
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