50 lines
1.2 KiB
C++
50 lines
1.2 KiB
C++
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/**
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* @file Farm1StateOpen.cpp
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* @brief This file defines the Farm1StateOpen class.
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* @date 24.04.2013
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* @author baetz
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*/
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#include "ClcwIF.h"
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#include "Farm1StateOpen.h"
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#include "TcTransferFrame.h"
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#include "VirtualChannelReception.h"
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Farm1StateOpen::Farm1StateOpen(VirtualChannelReception* setMyVC) : myVC(setMyVC) {
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}
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ReturnValue_t Farm1StateOpen::handleADFrame(TcTransferFrame* frame,
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ClcwIF* clcw) {
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int8_t diff = frame->getSequenceNumber() - myVC->vR;
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if (diff == 0 ) {
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myVC->vR++;
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clcw->setRetransmitFlag(false);
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return RETURN_OK;
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} else if (diff < myVC->positiveWindow && diff > 0 ) {
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clcw->setRetransmitFlag(true);
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return NS_POSITIVE_W;
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} else if (diff < 0 && diff >= -myVC->negativeWindow) {
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return NS_NEGATIVE_W;
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} else {
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clcw->setLockoutFlag(true);
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myVC->currentState = &(myVC->lockoutState);
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return NS_LOCKOUT;
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}
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}
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ReturnValue_t Farm1StateOpen::handleBCUnlockCommand( ClcwIF* clcw ) {
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myVC->farmBCounter++;
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clcw->setRetransmitFlag(false);
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return BC_IS_UNLOCK_COMMAND;
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}
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ReturnValue_t Farm1StateOpen::handleBCSetVrCommand( ClcwIF* clcw, uint8_t vr ) {
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myVC->farmBCounter++;
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clcw->setRetransmitFlag(false);
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myVC->vR = vr;
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return BC_IS_SET_VR_COMMAND;
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}
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