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45 lines
886 B
C++
45 lines
886 B
C++
//
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// DirectAccessDevice.hpp
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// Clock Signal
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//
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// Created by Thomas Harte on 17/08/2019.
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// Copyright © 2019 Thomas Harte. All rights reserved.
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//
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#ifndef DirectAccessDevice_hpp
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#define DirectAccessDevice_hpp
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#include "SCSI.hpp"
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namespace SCSI {
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/*!
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Models a SCSI direct access device, ordinarily some sort of
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hard drive.
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*/
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class DirectAccessDevice: public Bus::Observer {
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public:
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/*!
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Instantiates a direct access device attached to @c bus,
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with SCSI ID @c scsi_id — a number in the range 0 to 7.
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*/
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DirectAccessDevice(Bus &bus, int scsi_id);
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private:
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void scsi_bus_did_change(Bus *, BusState new_state) final;
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Bus &bus_;
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const BusState scsi_id_mask_;
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const size_t scsi_bus_device_id_;
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enum class State {
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Inactive,
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Selected
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} state_ = State::Inactive;
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BusState bus_state_ = DefaultBusState;
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};
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}
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#endif /* DirectAccessDevice_hpp */
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