Robin Mueller
98fcf06e31
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120 lines
3.4 KiB
C++
120 lines
3.4 KiB
C++
#ifndef MISSION_DEVICES_DEVICEDEFINITIONS_SPBASE_H_
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#define MISSION_DEVICES_DEVICEDEFINITIONS_SPBASE_H_
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#include <fsfw/tmtcpacket/ccsds/SpacePacketCreator.h>
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#include <fsfw/tmtcpacket/ccsds/SpacePacketReader.h>
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#include <cstdint>
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namespace ploc {
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struct SpTcParams {
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SpTcParams(SpacePacketCreator& creator) : creator(creator) {}
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SpTcParams(SpacePacketCreator& creator, uint8_t* buf, size_t maxSize)
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: creator(creator), buf(buf), maxSize(maxSize) {}
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void setFullPayloadLen(size_t fullPayloadLen_) { fullPayloadLen = fullPayloadLen_; }
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SpacePacketCreator& creator;
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uint8_t* buf = nullptr;
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size_t maxSize = 0;
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size_t fullPayloadLen = 0;
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};
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class SpTcBase {
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public:
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SpTcBase(SpTcParams params) : SpTcBase(params, 0x00, 1, 0) {}
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SpTcBase(SpTcParams params, uint16_t apid, size_t payloadLen)
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: SpTcBase(params, apid, payloadLen, 0) {}
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SpTcBase(SpTcParams params, uint16_t apid, size_t payloadLen, uint16_t seqCount)
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: spParams(params) {
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spParams.creator.setApid(apid);
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spParams.creator.setSeqCount(seqCount);
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payloadStart = spParams.buf + ccsds::HEADER_LEN;
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spParams.fullPayloadLen = payloadLen;
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updateSpFields();
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}
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void updateSpFields() {
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updateLenFromParams();
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spParams.creator.setPacketType(ccsds::PacketType::TC);
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}
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void updateLenFromParams() { spParams.creator.setDataLenField(spParams.fullPayloadLen - 1); }
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const uint8_t* getFullPacket() const { return spParams.buf; }
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const uint8_t* getPacketData() const { return spParams.buf + ccsds::HEADER_LEN; }
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size_t getFullPacketLen() const { return spParams.creator.getFullPacketLen(); }
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uint16_t getApid() const { return spParams.creator.getApid(); }
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uint16_t getSeqCount() const { return spParams.creator.getSequenceCount(); }
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ReturnValue_t checkPayloadLen() {
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if (ccsds::HEADER_LEN + spParams.fullPayloadLen > spParams.maxSize) {
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return SerializeIF::BUFFER_TOO_SHORT;
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}
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return returnvalue::OK;
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}
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ReturnValue_t serializeHeader() {
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updateSpFields();
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size_t serLen = 0;
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return spParams.creator.serializeBe(spParams.buf, serLen, spParams.maxSize);
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}
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ReturnValue_t checkSizeAndSerializeHeader() {
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ReturnValue_t result = checkPayloadLen();
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if (result != returnvalue::OK) {
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return result;
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}
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return serializeHeader();
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}
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ReturnValue_t calcAndSetCrc() {
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/* Calculate crc */
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uint16_t crc = CRC::crc16ccitt(spParams.buf, getFullPacketLen() - 2);
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/* Add crc to packet data field of space packet */
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size_t serializedSize = 0;
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return SerializeAdapter::serialize(&crc, spParams.buf + getFullPacketLen() - 2, &serializedSize,
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spParams.maxSize, SerializeIF::Endianness::BIG);
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}
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protected:
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ploc::SpTcParams spParams;
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uint8_t* payloadStart;
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};
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/**
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* @brief Class for handling tm replies of the supervisor.
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*/
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class SpTmReader : public SpacePacketReader {
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public:
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SpTmReader() = default;
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/**
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* @brief Constructor creates idle packet and sets length field to maximum allowed size.
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*/
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SpTmReader(const uint8_t* buf, size_t maxSize) : SpacePacketReader(buf, maxSize) {}
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ReturnValue_t setData(const uint8_t* buf, size_t maxSize) {
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return setReadOnlyData(buf, maxSize);
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}
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ReturnValue_t checkCrc() const {
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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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}
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};
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} // namespace ploc
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#endif /* MISSION_DEVICES_DEVICEDEFINITIONS_SPBASE_H_ */
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