75 lines
2.2 KiB
C++
75 lines
2.2 KiB
C++
#include "ArcsecDatalinkLayer.h"
|
|
|
|
extern "C" {
|
|
#include <common/misc.h>
|
|
}
|
|
|
|
ArcsecDatalinkLayer::ArcsecDatalinkLayer() : decodeRingBuf(BUFFER_LENGTHS, true) { slipInit(); }
|
|
|
|
ArcsecDatalinkLayer::~ArcsecDatalinkLayer() {}
|
|
|
|
ReturnValue_t ArcsecDatalinkLayer::checkRingBufForFrame(const uint8_t** decodedFrame,
|
|
size_t& frameLen) {
|
|
size_t currentLen = decodeRingBuf.getAvailableReadData();
|
|
if (currentLen == 0) {
|
|
return DEC_IN_PROGRESS;
|
|
}
|
|
decodeRingBuf.readData(rxAnalysisBuffer, currentLen);
|
|
for (size_t idx = 0; idx < currentLen; idx++) {
|
|
enum arc_dec_result decResult =
|
|
arc_transport_decode_body(rxAnalysisBuffer[idx], &slipInfo, decodedRxFrame, &rxFrameSize);
|
|
switch (decResult) {
|
|
case ARC_DEC_INPROGRESS: {
|
|
break;
|
|
}
|
|
case ARC_DEC_ERROR: {
|
|
decodeRingBuf.deleteData(idx);
|
|
return returnvalue::FAILED;
|
|
}
|
|
case ARC_DEC_ASYNC:
|
|
case ARC_DEC_SYNC: {
|
|
// Reset length of SLIP struct for next frame
|
|
slipInfo.length = 0;
|
|
if (decodedFrame != nullptr) {
|
|
*decodedFrame = decodedRxFrame;
|
|
}
|
|
frameLen = rxFrameSize;
|
|
decodeRingBuf.deleteData(idx);
|
|
return returnvalue::OK;
|
|
}
|
|
default:
|
|
sif::debug << "ArcsecDatalinkLayer::decodeFrame: Unknown result code" << std::endl;
|
|
break;
|
|
return returnvalue::FAILED;
|
|
}
|
|
}
|
|
decodeRingBuf.deleteData(currentLen);
|
|
return DEC_IN_PROGRESS;
|
|
}
|
|
|
|
ReturnValue_t ArcsecDatalinkLayer::feedData(const uint8_t* rawData, size_t rawDataLen) {
|
|
if (rawDataLen > 4096) {
|
|
sif::error << "ArcsecDatalinklayer: Can not write more than 4096 bytes to ring buffer"
|
|
<< std::endl;
|
|
return returnvalue::FAILED;
|
|
}
|
|
return decodeRingBuf.writeData(rawData, rawDataLen);
|
|
}
|
|
|
|
void ArcsecDatalinkLayer::reset() {
|
|
slipInit();
|
|
decodeRingBuf.clear();
|
|
}
|
|
|
|
void ArcsecDatalinkLayer::slipInit() {
|
|
slip_decode_init(rxBufferArc, sizeof(rxBufferArc), &slipInfo);
|
|
}
|
|
|
|
void ArcsecDatalinkLayer::encodeFrame(const uint8_t* data, size_t length, const uint8_t** txFrame,
|
|
size_t& size) {
|
|
arc_transport_encode_body(data, length, txEncoded, &size);
|
|
if (txFrame != nullptr) {
|
|
*txFrame = txEncoded;
|
|
}
|
|
}
|