SdCard.hh

Go to the documentation of this file.

#ifndef SDCARD_HH
#define SDCARD_HH

#include "openmsx.hh"
#include "circular_buffer.hh"
#include "DiskImageUtils.hh"
#include <memory>

namespace openmsx {

class DeviceConfig;
class HD;

class SdCard
{
public:
        explicit SdCard(const DeviceConfig& config);
        ~SdCard();

        byte transfer(byte value, bool cs);

        template<typename Archive>
        void serialize(Archive& ar, unsigned version);

// private:
        enum Mode {
                COMMAND,
                READ,
                MULTI_READ,
                WRITE,
                MULTI_WRITE
        };

private:
        void executeCommand();
        byte readCurrentByteFromCurrentSector();

        const std::unique_ptr<HD> hd; // can be nullptr

        byte cmdBuf[6];
        SectorBuffer sectorBuf;
        unsigned cmdIdx;

        cb_queue<byte> responseQueue;

        byte transferDelayCounter;
        Mode mode;
        unsigned currentSector;
        int currentByteInSector;
};

} // namespace openmsx

#endif