SCSILS120.hh

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/* Ported from:
** Source: /cvsroot/bluemsx/blueMSX/Src/IoDevice/ScsiDevice.h,v
** Revision: 1.6
** Date: 2007-05-22 20:05:38 +0200 (Tue, 22 May 2007)
**
** More info: http://www.bluemsx.com
**
** Copyright (C) 2003-2007 Daniel Vik, white cat
*/
#ifndef SCSILS120_HH
#define SCSILS120_HH

#include "SCSIDevice.hh"
#include "SectorAccessibleDisk.hh"
#include "DiskContainer.hh"
#include "File.hh"
#include <bitset>
#include <memory>

namespace openmsx {

class DeviceConfig;
class MSXMotherBoard;
class LSXCommand;

class SCSILS120 final : public SCSIDevice, public SectorAccessibleDisk
                      , public DiskContainer
{
public:
        SCSILS120(const SCSILS120&) = delete;
        SCSILS120 operator=(const SCSILS120&) = delete;

        SCSILS120(const DeviceConfig& targetconfig,
                  AlignedBuffer& buf, unsigned mode);
        ~SCSILS120() override;

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

private:
        // SectorAccessibleDisk:
        void readSectorImpl (size_t sector,       SectorBuffer& buf) override;
        void writeSectorImpl(size_t sector, const SectorBuffer& buf) override;
        size_t getNbSectorsImpl() const override;
        bool isWriteProtectedImpl() const override;
        Sha1Sum getSha1SumImpl(FilePool& filePool) override;

        // Diskcontainer:
        SectorAccessibleDisk* getSectorAccessibleDisk() override;
        const std::string& getContainerName() const override;
        bool diskChanged() override;
        int insertDisk(std::string_view filename) override;

        // SCSI Device
        void reset() override;
        bool isSelected() override;
        unsigned executeCmd(const byte* cdb, SCSI::Phase& phase, unsigned& blocks) override;
        unsigned executingCmd(SCSI::Phase& phase, unsigned& blocks) override;
        byte getStatusCode() override;
        int msgOut(byte value) override;
        byte msgIn() override;
        void disconnect() override;
        void busReset() override;
        unsigned dataIn(unsigned& blocks) override;
        unsigned dataOut(unsigned& blocks) override;

        void eject();
        void insert(std::string_view filename);

        bool getReady();
        void testUnitReady();
        void startStopUnit();
        unsigned inquiry();
        unsigned modeSense();
        unsigned requestSense();
        bool checkReadOnly();
        unsigned readCapacity();
        bool checkAddress();
        unsigned readSector(unsigned& blocks);
        unsigned writeSector(unsigned& blocks);
        void formatUnit();

        MSXMotherBoard& motherBoard;
        AlignedBuffer& buffer;
        File file;
        std::unique_ptr<LSXCommand> lsxCommand;
        std::string name;
        const int mode;
        unsigned keycode;      // Sense key, ASC, ASCQ
        unsigned currentSector;
        unsigned currentLength;
        const byte scsiId;     // SCSI ID 0..7
        bool unitAttention;    // Unit Attention (was: reset)
        bool mediaChanged;     // Enhanced change flag for MEGA-SCSI driver
        byte message;
        byte lun;
        byte cdb[12];          // Command Descriptor Block

        static constexpr unsigned MAX_LS = 26;
        using LSInUse = std::bitset<MAX_LS>;
        std::shared_ptr<LSInUse> lsInUse;

        friend class LSXCommand;
};

} // namespace openmsx

#endif