SCSIHD.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 SCSIHD_HH
#define SCSIHD_HH
 
#include "HD.hh"
#include "SCSIDevice.hh"
#include <array>
 
namespace openmsx {
 
class DeviceConfig;
 
class SCSIHD final : public HD, public SCSIDevice
{
public:
        SCSIHD(const DeviceConfig& targetConfig,
               AlignedBuffer& buf, unsigned mode);
        SCSIHD(const SCSIHD&) = delete;
        SCSIHD(SCSIHD&&) = delete;
        SCSIHD& operator=(const SCSIHD&) = delete;
        SCSIHD& operator=(SCSIHD&&) = delete;
        ~SCSIHD() override = default;
 
        template<typename Archive>
        void serialize(Archive& ar, unsigned version);
 
private:
        // SCSI Device
        void reset() override;
        bool isSelected() override;
        [[nodiscard]] unsigned executeCmd(std::span<const uint8_t, 12> cdb, SCSI::Phase& phase,
                                          unsigned& blocks) override;
        [[nodiscard]] unsigned executingCmd(SCSI::Phase& phase, unsigned& blocks) override;
        [[nodiscard]] uint8_t getStatusCode() override;
        int msgOut(uint8_t value) override;
        uint8_t msgIn() override;
        void disconnect() override;
        void busReset() override;
 
        [[nodiscard]] unsigned dataIn(unsigned& blocks) override;
        [[nodiscard]] unsigned dataOut(unsigned& blocks) override;
 
        [[nodiscard]] unsigned inquiry();
        [[nodiscard]] unsigned modeSense();
        [[nodiscard]] unsigned requestSense();
        [[nodiscard]] bool checkReadOnly();
        [[nodiscard]] unsigned readCapacity();
        [[nodiscard]] bool checkAddress();
        [[nodiscard]] unsigned readSectors(unsigned& blocks);
        [[nodiscard]] unsigned writeSectors(unsigned& blocks);
        void formatUnit();
 
private:
        AlignedBuffer& buffer;
 
        const unsigned mode;
 
        unsigned keycode;      // Sense key, ASC, ASCQ
        unsigned currentSector;
        unsigned currentLength;
 
        const uint8_t scsiId;  // SCSI ID 0..7
        bool unitAttention;    // Unit Attention (was: reset)
        uint8_t message;
        uint8_t lun;
        std::array<uint8_t, 12> cdb; // Command Descriptor Block
};
 
} // namespace openmsx
 
#endif