eive-obsw/mission/devices/devicedefinitions/SpBase.h

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#ifndef MISSION_DEVICES_DEVICEDEFINITIONS_SPBASE_H_
#define MISSION_DEVICES_DEVICEDEFINITIONS_SPBASE_H_
#include <fsfw/tmtcpacket/ccsds/SpacePacketCreator.h>
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#include <fsfw/tmtcpacket/ccsds/SpacePacketReader.h>
#include <cstdint>
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namespace ploc {
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struct SpTcParams {
SpTcParams(SpacePacketCreator& creator) : creator(creator) {}
SpTcParams(SpacePacketCreator& creator, uint8_t* buf, size_t maxSize)
: creator(creator), buf(buf), maxSize(maxSize) {}
void setPayloadLen(size_t payloadLen_) { dataFieldLen = payloadLen_ + 2; }
void setDataFieldLen(size_t dataFieldLen_) { dataFieldLen = dataFieldLen_; }
SpacePacketCreator& creator;
uint8_t* buf = nullptr;
size_t maxSize = 0;
size_t dataFieldLen = 0;
};
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class SpTcBase {
public:
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SpTcBase(SpTcParams params) : spParams(params) {
payloadStart = spParams.buf + ccsds::HEADER_LEN;
updateSpFields();
}
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SpTcBase(SpTcParams params, uint16_t apid, uint16_t seqCount) : spParams(params) {
spParams.creator.setApid(apid);
spParams.creator.setSeqCount(seqCount);
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payloadStart = spParams.buf + ccsds::HEADER_LEN;
updateSpFields();
}
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void updateSpFields() {
spParams.creator.setDataLen(spParams.dataFieldLen - 1);
spParams.creator.setPacketType(ccsds::PacketType::TC);
}
const uint8_t* getFullPacket() const { return spParams.buf; }
size_t getFullPacketLen() const { return spParams.creator.getFullPacketLen(); }
uint16_t getApid() const { return spParams.creator.getApid(); }
ReturnValue_t checkPayloadLen() {
if (ccsds::HEADER_LEN + spParams.dataFieldLen > spParams.maxSize) {
return SerializeIF::BUFFER_TOO_SHORT;
}
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return returnvalue::OK;
}
ReturnValue_t serializeHeader() {
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updateSpFields();
size_t serLen = 0;
return spParams.creator.serializeBe(spParams.buf, serLen, spParams.maxSize);
}
ReturnValue_t checkSizeAndSerializeHeader() {
ReturnValue_t result = checkPayloadLen();
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if (result != returnvalue::OK) {
return result;
}
return serializeHeader();
}
ReturnValue_t calcCrc() {
/* Calculate crc */
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uint16_t crc = CRC::crc16ccitt(spParams.buf, getFullPacketLen() - 2);
/* Add crc to packet data field of space packet */
size_t serializedSize = 0;
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return SerializeAdapter::serialize(&crc, spParams.buf + getFullPacketLen() - 2, &serializedSize,
spParams.maxSize, SerializeIF::Endianness::BIG);
}
protected:
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ploc::SpTcParams spParams;
uint8_t* payloadStart;
};
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/**
* @brief Class for handling tm replies of the supervisor.
*/
class SpTmReader : public SpacePacketReader {
public:
SpTmReader() = default;
/**
* @brief Constructor creates idle packet and sets length field to maximum allowed size.
*/
SpTmReader(const uint8_t* buf, size_t maxSize) : SpacePacketReader(buf, maxSize) {}
ReturnValue_t setData(const uint8_t* buf, size_t maxSize) {
return setReadOnlyData(buf, maxSize);
}
/**
* @brief Returns the payload data length (data field length without CRC)
*/
uint16_t getPayloadDataLength() { return getPacketDataLen() - 2; }
ReturnValue_t checkCrc() {
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if (CRC::crc16ccitt(getFullData(), getFullPacketLen()) != 0) {
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return returnvalue::FAILED;
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}
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return returnvalue::OK;
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}
};
} // namespace ploc
#endif /* MISSION_DEVICES_DEVICEDEFINITIONS_SPBASE_H_ */