ChipSelect.hpp

Go to the documentation of this file.

/*
 * This file is part of the DUDS project. It is subject to the BSD-style
 * license terms in the LICENSE file found in the top-level directory of this
 * distribution and at https://github.com/jjackowski/duds/blob/master/LICENSE.
 * No part of DUDS, including this file, may be copied, modified, propagated,
 * or distributed except according to the terms contained in the LICENSE file.
 *
 * Copyright (C) 2017  Jeff Jackowski
 */
#ifndef CHIPSELECT_HPP
#define CHIPSELECT_HPP

#include <duds/hardware/interface/ChipAccess.hpp>

namespace duds { namespace hardware { namespace interface {

class ChipSelectManager;

class ChipSelect {
    std::shared_ptr<ChipSelectManager> mgr;
    int cid;
public:
    ChipSelect() noexcept;
    ChipSelect(const std::shared_ptr<ChipSelectManager> &csm, int chipId);
    ChipSelect(std::shared_ptr<ChipSelectManager> &&csm, int chipId);
    std::unique_ptr<ChipAccess> access();
    void access(ChipAccess &acc);
    std::unique_ptr<ChipAccess> select();
    void select(ChipAccess &acc);
    bool haveManager() const {
        return (bool)mgr;
    }
    const std::shared_ptr<ChipSelectManager> &manager() const {
        return mgr;
    }
    bool configured() const {
        return mgr && (cid >= 0);
    }
    operator bool () const {
        return configured();
    }
    int chipId() const {
        return cid;
    }
    void modify(const std::shared_ptr<ChipSelectManager> &csm, int chipId);
    void modify(std::shared_ptr<ChipSelectManager> &&csm, int chipId);
    void reset() noexcept;
};

} } }


#endif        //  #ifndef CHIPSELECT_HPP