fsfw/datalinklayer/VirtualChannelReceptionIF.h
2020-08-13 20:53:35 +02:00

58 lines
1.6 KiB
C++

/**
* @file VirtualChannelReceptionIF.h
* @brief This file defines the VirtualChannelReceptionIF class.
* @date 25.03.2013
* @author baetz
*/
#ifndef VIRTUALCHANNELRECEPTIONIF_H_
#define VIRTUALCHANNELRECEPTIONIF_H_
#include "ClcwIF.h"
#include "TcTransferFrame.h"
#include "../returnvalues/HasReturnvaluesIF.h"
/**
* This is the interface for Virtual Channel reception classes.
* It represents a single TC Virtual Channel that operates on one IO
*/
class VirtualChannelReceptionIF {
public:
/**
* Enum including all valid types of frames.
* The type is made up by two flags, so 0b1111 is definitely illegal.
*/
enum frameType {
AD_FRAME = 0b00,
BC_FRAME = 0b11,
BD_FRAME = 0b10,
ILLEGAL_FRAME = 0b1111
};
/**
* Empty virtual destructor.
*/
virtual ~VirtualChannelReceptionIF() {
}
/**
* This method shall accept frames and do all FARM-1 stuff.
* Handling the Frame includes forwarding to higher-level procedures.
* @param frame The Tc Transfer Frame that was received and checked.
* @param clcw Any changes to the CLCW value are forwarded by using this parameter.
* @return The return Value shall indicate successful processing with @c RETURN_OK.
*/
virtual ReturnValue_t frameAcceptanceAndReportingMechanism( TcTransferFrame* frame, ClcwIF* clcw ) = 0;
/**
* If any other System Objects are required for operation they shall be initialized here.
* @return @c RETURN_OK for successful initialization.
*/
virtual ReturnValue_t initialize() = 0;
/**
* Getter for the VCID.
* @return The #channelId.
*/
virtual uint8_t getChannelId() const = 0;
};
#endif /* VIRTUALCHANNELRECEPTIONIF_H_ */