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Moved crc calculation into its own class, renamed function to show which 

crc is calculated.
This commit is contained in:
Ulrich Mohr 2020-04-06 13:22:42 +02:00
parent 90cba58ded
commit f28886e970
11 changed files with 35 additions and 28 deletions
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2
container/IndexedRingMemoryArray.h
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@ -2,10 +2,10 @@
#define FRAMEWORK_CONTAINER_INDEXEDRINGMEMORY_H_
#include <framework/container/ArrayList.h>
#include <framework/globalfunctions/CRC.h>
#include <framework/serviceinterface/ServiceInterfaceStream.h>
#include <framework/returnvalues/HasReturnvaluesIF.h>
#include <framework/serialize/SerialArrayListAdapter.h>
#include <framework/globalfunctions/crc_ccitt.h>
#include <cmath>
template<typename T>

4
datalinklayer/DataLinkLayer.cpp
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@ -1,5 +1,5 @@
#include <framework/datalinklayer/DataLinkLayer.h>
#include <framework/globalfunctions/crc_ccitt.h>
#include <framework/globalfunctions/CRC.h>
#include <framework/serviceinterface/ServiceInterfaceStream.h>
DataLinkLayer::DataLinkLayer(uint8_t* set_frame_buffer, ClcwIF* setClcw,
@ -60,7 +60,7 @@ ReturnValue_t DataLinkLayer::frameValidationCheck() {
}
ReturnValue_t DataLinkLayer::frameCheckCRC() {
uint16_t checkValue = ::Calculate_CRC(this->currentFrame.getFullFrame(),
uint16_t checkValue = CRC::crc16ccitt(this->currentFrame.getFullFrame(),
this->currentFrame.getFullSize());
if (checkValue == 0) {
return RETURN_OK;

6
datalinklayer/TcTransferFrameLocal.cpp
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@ -6,7 +6,7 @@
*/
#include <framework/datalinklayer/TcTransferFrameLocal.h>
#include <framework/globalfunctions/crc_ccitt.h>
#include <framework/globalfunctions/CRC.h>
#include <framework/serviceinterface/ServiceInterfaceStream.h>
#include <string.h>
@ -25,7 +25,7 @@ TcTransferFrameLocal::TcTransferFrameLocal(bool bypass, bool controlCommand, uin
uint16_t totalSize = sizeof(TcTransferFramePrimaryHeader) + dataSize + FRAME_CRC_SIZE -1;
frame->header.vcidAndLength_h |= (totalSize & 0x0300) >> 8;
frame->header.length_l = (totalSize & 0x00FF);
uint16_t crc = ::Calculate_CRC(getFullFrame(), getFullSize() -2);
uint16_t crc = CRC::crc16ccitt(getFullFrame(), getFullSize() -2);
this->getFullFrame()[getFullSize()-2] = (crc & 0xFF00) >> 8;
this->getFullFrame()[getFullSize()-1] = (crc & 0x00FF);
} else if (dataSize <= 1016) {
@ -33,7 +33,7 @@ TcTransferFrameLocal::TcTransferFrameLocal(bool bypass, bool controlCommand, uin
uint16_t dataCrcSize = sizeof(TcTransferFramePrimaryHeader) + 1 + dataSize + FRAME_CRC_SIZE -1;
frame->header.vcidAndLength_h |= (dataCrcSize & 0x0300) >> 8;
frame->header.length_l = (dataCrcSize & 0x00FF);
uint16_t crc = ::Calculate_CRC(getFullFrame(), getFullSize() -2);
uint16_t crc = CRC::crc16ccitt(getFullFrame(), getFullSize() -2);
this->getFullFrame()[getFullSize()-2] = (crc & 0xFF00) >> 8;
this->getFullFrame()[getFullSize()-1] = (crc & 0x00FF);
} else {

2
devicehandlers/DeviceHandlerBase.cpp
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@ -4,7 +4,7 @@
#include <framework/devicehandlers/AcceptsDeviceResponsesIF.h>
#include <framework/devicehandlers/DeviceHandlerBase.h>
#include <framework/devicehandlers/DeviceTmReportingWrapper.h>
#include <framework/globalfunctions/crc_ccitt.h>
#include <framework/globalfunctions/CRC.h>
#include <framework/objectmanager/ObjectManager.h>
#include <framework/storagemanager/StorageManagerIF.h>
#include <framework/subsystem/SubsystemBase.h>

8
globalfunctions/crc_ccitt.cpp → globalfunctions/CRC.cpp
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@ -1,7 +1,7 @@
#include <framework/globalfunctions/crc_ccitt.h>
#include <framework/globalfunctions/CRC.h>
#include <math.h>
static const uint16_t crc_table[256] = {
const uint16_t CRC::crc16ccitt_table[256] = {
0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7,
0x8108, 0x9129, 0xa14a, 0xb16b, 0xc18c, 0xd1ad, 0xe1ce, 0xf1ef,
0x1231, 0x0210, 0x3273, 0x2252, 0x52b5, 0x4294, 0x72f7, 0x62d6,
@ -38,14 +38,14 @@ static const uint16_t crc_table[256] = {
// CRC implementation
uint16_t Calculate_CRC(uint8_t const input[], uint32_t length, uint16_t startingCrc)
uint16_t CRC::crc16ccitt(uint8_t const input[], uint32_t length, uint16_t startingCrc)
{
uint8_t *data = (uint8_t *)input;
unsigned int tbl_idx;
while (length--) {
tbl_idx = ((startingCrc >> 8) ^ *data) & 0xff;
startingCrc = (crc_table[tbl_idx] ^ (startingCrc << 8)) & 0xffff;
startingCrc = (crc16ccitt_table[tbl_idx] ^ (startingCrc << 8)) & 0xffff;
data++;
}

16
globalfunctions/CRC.h Normal file
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@ -0,0 +1,16 @@
#ifndef CRC_CCITT_H_
#define CRC_CCITT_H_
#include <stdint.h>
class CRC {
public:
static uint16_t crc16ccitt(uint8_t const input[], uint32_t length,
uint16_t startingCrc = 0xffff);
private:
CRC();
static const uint16_t crc16ccitt_table[256];
};
#endif /* CRC_H_ */

9
globalfunctions/crc_ccitt.h
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@ -1,9 +0,0 @@
#ifndef CRC_CCITT_H_
#define CRC_CCITT_H_
#include <stdint.h>
uint16_t Calculate_CRC(uint8_t const input[], uint32_t length, uint16_t startingCrc = 0xffff);
#endif /* CRC_H_ */

4
memory/MemoryHelper.cpp
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@ -1,4 +1,4 @@
#include <framework/globalfunctions/crc_ccitt.h>
#include <framework/globalfunctions/CRC.h>
#include <framework/memory/MemoryHelper.h>
#include <framework/memory/MemoryMessage.h>
#include <framework/objectmanager/ObjectManagerIF.h>
@ -98,7 +98,7 @@ void MemoryHelper::completeDump(ReturnValue_t errorCode,
break;
}
case MemoryMessage::CMD_MEMORY_CHECK: {
uint16_t crc = ::Calculate_CRC(reservedSpaceInIPC, size);
uint16_t crc = CRC::crc16ccitt(reservedSpaceInIPC, size);
//Delete data immediately, was temporary.
ipcStore->deleteData(ipcAddress);
MemoryMessage::setMemoryCheckReply(&reply, crc);

4
tcdistribution/TcPacketCheck.cpp
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@ -1,4 +1,4 @@
#include <framework/globalfunctions/crc_ccitt.h>
#include <framework/globalfunctions/CRC.h>
#include <framework/serviceinterface/ServiceInterfaceStream.h>
#include <framework/storagemanager/StorageManagerIF.h>
#include <framework/tcdistribution/TcPacketCheck.h>
@ -8,7 +8,7 @@ TcPacketCheck::TcPacketCheck( uint16_t set_apid ) : apid(set_apid) {
}
ReturnValue_t TcPacketCheck::checkPacket( TcPacketStored* current_packet ) {
uint16_t calculated_crc = ::Calculate_CRC ( current_packet->getWholeData(), current_packet->getFullSize() );
uint16_t calculated_crc = CRC::crc16ccitt( current_packet->getWholeData(), current_packet->getFullSize() );
if ( calculated_crc != 0 ) {
return INCORRECT_CHECKSUM;
}

4
tmtcpacket/pus/TcPacketBase.cpp
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@ -1,4 +1,4 @@
#include <framework/globalfunctions/crc_ccitt.h>
#include <framework/globalfunctions/CRC.h>
#include <framework/serviceinterface/ServiceInterfaceStream.h>
#include <framework/tmtcpacket/pus/TcPacketBase.h>
#include <string.h>
@ -40,7 +40,7 @@ uint16_t TcPacketBase::getErrorControl() {
void TcPacketBase::setErrorControl() {
uint32_t full_size = getFullSize();
uint16_t crc = ::Calculate_CRC(getWholeData(), full_size - CRC_SIZE);
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

4
tmtcpacket/pus/TmPacketBase.cpp
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@ -1,4 +1,4 @@
#include <framework/globalfunctions/crc_ccitt.h>
#include <framework/globalfunctions/CRC.h>
#include <framework/objectmanager/ObjectManagerIF.h>
#include <framework/serviceinterface/ServiceInterfaceStream.h>
#include <framework/tmtcpacket/pus/TmPacketBase.h>
@ -39,7 +39,7 @@ uint16_t TmPacketBase::getErrorControl() {
void TmPacketBase::setErrorControl() {
uint32_t full_size = getFullSize();
uint16_t crc = ::Calculate_CRC(getWholeData(), full_size - CRC_SIZE);
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