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

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#ifndef MISSION_DEVICES_DEVICEDEFINITIONS_PLOCDEFINITIONS_H_
#define MISSION_DEVICES_DEVICEDEFINITIONS_PLOCDEFINITIONS_H_
#include <fsfw/tmtcpacket/SpacePacket.h>
#include <fsfw/globalfunctions/CRC.h>
#include <fsfw/serialize/SerializeAdapter.h>
namespace PLOC {
static const DeviceCommandId_t NONE = 0x0;
static const DeviceCommandId_t TC_MEM_WRITE = 0x1;
static const DeviceCommandId_t TC_MEM_READ = 0x2;
static const DeviceCommandId_t ACK_REPORT = 0x3;
static const DeviceCommandId_t EXE_REPORT = 0x5;
static const DeviceCommandId_t TM_MEMORY_READ_REPORT = 0x6;
static const uint16_t SIZE_ACK_REPORT = 14;
static const uint16_t SIZE_EXE_REPORT = 14;
static const uint16_t SIZE_TM_MEM_READ_REPORT = 18;
/**
* SpacePacket apids of PLOC telecommands and telemetry.
*/
static const uint16_t APID_TC_MEM_WRITE = 0x714;
static const uint16_t APID_TC_MEM_READ = 0x715;
static const uint16_t APID_TM_MEMORY_READ_REPORT = 0x404;
static const uint16_t APID_ACK_SUCCESS = 0x400;
static const uint16_t APID_ACK_FAILURE = 0x401;
static const uint16_t APID_EXE_SUCCESS = 0x402;
static const uint16_t APID_EXE_FAILURE = 0x403;
/** Offset from first byte in Space packet to first byte of data field */
static const uint8_t DATA_FIELD_OFFSET = 6;
/**
* The size of payload data which will be forwarded to the requesting object. e.g. PUS Service
* 8.
*/
static const uint8_t SIZE_MEM_READ_REPORT_DATA = 10;
/**
* PLOC space packet length for fixed size packets. This is the size of the whole packet data
* field. For the length field in the space packet this size will be substracted by one.
*/
static const uint16_t LENGTH_TC_MEM_WRITE = 12;
static const uint16_t LENGTH_TC_MEM_READ = 8;
static const size_t MAX_REPLY_SIZE = SIZE_TM_MEM_READ_REPORT;
static const size_t MAX_COMMAND_SIZE = 18;
/**
* @brief This class helps to build the memory read command for the PLOC.
*
* @details The last two bytes of the packet data field contain a CRC calculated over the whole
* space packet. This is the CRC-16-CCITT as specified in
* ECSS-E-ST-70-41C <20> Telemetry and telecommand packet utilization.
*/
class TcMemRead : public SpacePacket {
public:
/**
* @brief Constructor
*
* @param memAddr The memory address to read from.
*/
TcMemRead(const uint32_t memAddr, uint16_t sequenceCount) :
SpacePacket(LENGTH_TC_MEM_READ - 1, true, APID_TC_MEM_READ, sequenceCount) {
fillPacketDataField(&memAddr);
}
private:
/**
* @brief This function builds the packet data field for the mem read command.
*
* @param memAddrPtr Pointer to the memory address to read from.
*/
void fillPacketDataField(const uint32_t* memAddrPtr) {
/* Add memAddr to packet data field */
size_t serializedSize = 0;
uint8_t* memoryAddressPos = this->localData.fields.buffer;
SerializeAdapter::serialize<uint32_t>(memAddrPtr, &memoryAddressPos, &serializedSize,
sizeof(*memAddrPtr), SerializeIF::Endianness::LITTLE);
/* Add memLen to packet data field */
this->localData.fields.buffer[OFFSET_MEM_LEN_FIELD] = 1;
this->localData.fields.buffer[OFFSET_MEM_LEN_FIELD + 1] = 0;
/* Calculate crc */
uint16_t crc = CRC::crc16ccitt(this->localData.byteStream,
sizeof(CCSDSPrimaryHeader) + LENGTH_TC_MEM_READ - CRC_SIZE);
/* Add crc to packet data field of space packet */
serializedSize = 0;
uint8_t* crcPos = this->localData.fields.buffer + CRC_OFFSET;
SerializeAdapter::serialize<uint16_t>(&crc, &crcPos, &serializedSize,
sizeof(crc), SerializeIF::Endianness::BIG);
}
static const uint8_t OFFSET_MEM_LEN_FIELD = 4;
static const uint8_t CRC_OFFSET = 6;
};
/**
* @brief This class helps to generate the space packet to write to a memory address within
* the PLOC.
* @details The last two bytes of the packet data field contain a CRC calculated over the whole
* space packet. This is the CRC-16-CCITT as specified in
* ECSS-E-ST-70-41C <20> Telemetry and telecommand packet utilization.
*/
class TcMemWrite : public SpacePacket {
public:
/**
* @brief Constructor
*
* @param memAddr The PLOC memory address where to write to.
* @param memoryData The data to write to the specified memory address.
* @param sequenceCount The subsequence count. Must be incremented with each new packet.
*/
TcMemWrite(const uint32_t memAddr, const uint32_t memoryData, uint16_t sequenceCount) :
SpacePacket(LENGTH_TC_MEM_WRITE - 1, true, APID_TC_MEM_WRITE, sequenceCount) {
fillPacketDataField(&memAddr, &memoryData);
}
private:
/**
* @brief This function builds the packet data field for the mem write command.
*
* @param memAddrPtr Pointer to the PLOC memory address where to write to.
* @param memoryDataPtr Pointer to the memoryData to write
*/
void fillPacketDataField(const uint32_t* memAddrPtr, const uint32_t* memoryDataPtr) {
/* Add memAddr to packet data field */
size_t serializedSize = 0;
uint8_t* memoryAddressPos = this->localData.fields.buffer;
SerializeAdapter::serialize<uint32_t>(memAddrPtr, &memoryAddressPos, &serializedSize,
sizeof(*memAddrPtr), SerializeIF::Endianness::BIG);
/* Add memLen to packet data field */
this->localData.fields.buffer[OFFSET_MEM_LEN_FIELD] = 1;
this->localData.fields.buffer[OFFSET_MEM_LEN_FIELD + 1] = 0;
/* Add memData to packet data field */
serializedSize = 0;
uint8_t* memoryDataPos = this->localData.fields.buffer + OFFSET_MEM_DATA_FIELD;
SerializeAdapter::serialize<uint32_t>(memoryDataPtr, &memoryDataPos, &serializedSize,
sizeof(*memoryDataPtr), SerializeIF::Endianness::BIG);
/* Calculate crc */
uint16_t crc = CRC::crc16ccitt(this->localData.byteStream,
sizeof(CCSDSPrimaryHeader) + LENGTH_TC_MEM_WRITE - CRC_SIZE);
serializedSize = 0;
uint8_t* crcPos = this->localData.fields.buffer + CRC_OFFSET;
/* Add crc to packet data field of space packet */
SerializeAdapter::serialize<uint16_t>(&crc, &crcPos, &serializedSize,
sizeof(crc), SerializeIF::Endianness::BIG);
}
/** Offsets from base address of packet data field */
static const uint8_t OFFSET_MEM_LEN_FIELD = 4;
static const uint8_t OFFSET_MEM_DATA_FIELD = 6;
static const uint8_t CRC_OFFSET = 10;
};
}
#endif /* MISSION_DEVICES_DEVICEDEFINITIONS_PLOCDEFINITIONS_H_ */