fsfw/tmtcpacket/pus/TmPacketBase.cpp

115 lines
3.5 KiB
C++
Raw Normal View History

#include <framework/globalfunctions/CRC.h>
#include <framework/objectmanager/ObjectManagerIF.h>
#include <framework/serviceinterface/ServiceInterfaceStream.h>
#include <framework/tmtcpacket/pus/TmPacketBase.h>
#include <framework/timemanager/CCSDSTime.h>
#include <string.h>
TmPacketBase::TmPacketBase(uint8_t* set_data) :
SpacePacketBase(set_data) {
tm_data = (TmPacketPointer*) set_data;
}
TmPacketBase::~TmPacketBase() {
//Nothing to do.
}
uint8_t TmPacketBase::getService() {
return tm_data->data_field.service_type;
}
uint8_t TmPacketBase::getSubService() {
return tm_data->data_field.service_subtype;
}
uint8_t* TmPacketBase::getSourceData() {
return &tm_data->data;
}
uint16_t TmPacketBase::getSourceDataSize() {
return getPacketDataLength() - sizeof(tm_data->data_field)
- CRC_SIZE + 1;
}
uint16_t TmPacketBase::getErrorControl() {
uint32_t size = getSourceDataSize() + CRC_SIZE;
uint8_t* p_to_buffer = &tm_data->data;
return (p_to_buffer[size - 2] << 8) + p_to_buffer[size - 1];
}
void TmPacketBase::setErrorControl() {
uint32_t full_size = getFullSize();
uint16_t crc = CRC::crc16ccitt(getWholeData(), full_size - CRC_SIZE);
uint32_t size = getSourceDataSize();
getSourceData()[size] = (crc & 0XFF00) >> 8; // CRCH
getSourceData()[size + 1] = (crc) & 0X00FF; // CRCL
}
void TmPacketBase::setData(const uint8_t* p_Data) {
SpacePacketBase::setData(p_Data);
tm_data = (TmPacketPointer*) p_Data;
}
void TmPacketBase::print() {
/*uint8_t * wholeData = getWholeData();
debug << "TmPacket contains: " << std::endl;
for (uint8_t count = 0; count < getFullSize(); ++count ) {
debug << std::hex << (uint16_t)wholeData[count] << " ";
}
debug << std::dec << std::endl;*/
}
bool TmPacketBase::checkAndSetStamper() {
if (timeStamper == NULL) {
timeStamper = objectManager->get<TimeStamperIF>(timeStamperId);
if (timeStamper == NULL) {
error << "TmPacketBase::checkAndSetStamper: Stamper not found!"
<< std::endl;
return false;
}
}
return true;
}
ReturnValue_t TmPacketBase::getPacketTime(timeval* timestamp) const {
uint32_t tempSize = 0;
return CCSDSTime::convertFromCcsds(timestamp, tm_data->data_field.time,
&tempSize, sizeof(tm_data->data_field.time));
}
uint8_t* TmPacketBase::getPacketTimeRaw() const{
return tm_data->data_field.time;
}
void TmPacketBase::initializeTmPacket(uint16_t apid, uint8_t service, uint8_t subservice, uint8_t packetSubcounter) {
//Set primary header:
initSpacePacketHeader(false, true, apid);
//Set data Field Header:
//First, set to zero.
memset(&tm_data->data_field, 0, sizeof(tm_data->data_field));
//Set CCSDS_secondary header flag to 0, version number to 001 and ack to 0000
// NOTE: In PUS-C, the PUS Version is 2 and specified for the first 4 bits.
// The other 4 bits of the first byte are the spacecraft time reference status
// To change to PUS-C, set 0b00100000
tm_data->data_field.version_type_ack = 0b00010000;
tm_data->data_field.service_type = service;
tm_data->data_field.service_subtype = subservice;
tm_data->data_field.subcounter = packetSubcounter;
//Timestamp packet
if (checkAndSetStamper()) {
timeStamper->addTimeStamp(tm_data->data_field.time, sizeof(tm_data->data_field.time));
}
}
void TmPacketBase::setSourceDataSize(uint16_t size) {
setPacketDataLength(size + sizeof(PUSTmDataFieldHeader) + CRC_SIZE - 1);
}
uint32_t TmPacketBase::getTimestampSize() const {
return sizeof(tm_data->data_field.time);
}
TimeStamperIF* TmPacketBase::timeStamper = NULL;
object_id_t TmPacketBase::timeStamperId = 0;