fsfw/tmtcpacket/pus/TcPacketBase.cpp
2020-08-13 20:53:35 +02:00

83 lines
2.5 KiB
C++

#include "../../globalfunctions/CRC.h"
#include "../../serviceinterface/ServiceInterfaceStream.h"
#include "TcPacketBase.h"
#include <string.h>
TcPacketBase::TcPacketBase(const uint8_t* set_data) :
SpacePacketBase(set_data) {
tcData = (TcPacketPointer*) set_data;
}
TcPacketBase::~TcPacketBase() {
//Nothing to do.
}
uint8_t TcPacketBase::getService() {
return tcData->data_field.service_type;
}
uint8_t TcPacketBase::getSubService() {
return tcData->data_field.service_subtype;
}
uint8_t TcPacketBase::getAcknowledgeFlags() {
return tcData->data_field.version_type_ack & 0b00001111;
}
const uint8_t* TcPacketBase::getApplicationData() const {
return &tcData->data;
}
uint16_t TcPacketBase::getApplicationDataSize() {
return getPacketDataLength() - sizeof(tcData->data_field) - CRC_SIZE + 1;
}
uint16_t TcPacketBase::getErrorControl() {
uint16_t size = getApplicationDataSize() + CRC_SIZE;
uint8_t* p_to_buffer = &tcData->data;
return (p_to_buffer[size - 2] << 8) + p_to_buffer[size - 1];
}
void TcPacketBase::setErrorControl() {
uint32_t full_size = getFullSize();
uint16_t crc = CRC::crc16ccitt(getWholeData(), full_size - CRC_SIZE);
uint32_t size = getApplicationDataSize();
(&tcData->data)[size] = (crc & 0XFF00) >> 8; // CRCH
(&tcData->data)[size + 1] = (crc) & 0X00FF; // CRCL
}
void TcPacketBase::setData(const uint8_t* p_Data) {
SpacePacketBase::setData(p_Data);
tcData = (TcPacketPointer*) p_Data;
}
uint8_t TcPacketBase::getSecondaryHeaderFlag() {
return (tcData->data_field.version_type_ack & 0b10000000) >> 7;
}
uint8_t TcPacketBase::getPusVersionNumber() {
return (tcData->data_field.version_type_ack & 0b01110000) >> 4;
}
void TcPacketBase::print() {
uint8_t * wholeData = getWholeData();
sif::debug << "TcPacket contains: " << std::endl;
for (uint8_t count = 0; count < getFullSize(); ++count) {
sif::debug << std::hex << (uint16_t) wholeData[count] << " ";
}
sif::debug << std::dec << std::endl;
}
void TcPacketBase::initializeTcPacket(uint16_t apid, uint16_t sequenceCount,
uint8_t ack, uint8_t service, uint8_t subservice) {
initSpacePacketHeader(true, true, apid, sequenceCount);
memset(&tcData->data_field, 0, sizeof(tcData->data_field));
setPacketDataLength(sizeof(tcData->data_field) + CRC_SIZE);
//Data Field Header:
//Set CCSDS_secondary_header_flag to 0, version number to 001 and ack to 0000
tcData->data_field.version_type_ack = 0b00010000;
tcData->data_field.version_type_ack |= (ack & 0x0F);
tcData->data_field.service_type = service;
tcData->data_field.service_subtype = subservice;
}