MemoryDevice.h

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// SPDX-License-Identifier: BSD-3-Clause
//
// This file is part of ETISS. It is licensed under the BSD 3-Clause License; you may not use this file except in
// compliance with the License. You should have received a copy of the license along with this project. If not, see the
// LICENSE file.
 
#ifndef ETISS_PLUGIN_MEMORYDEVICE_H
#define ETISS_PLUGIN_MEMORYDEVICE_H
 
#include "etiss/Plugin.h"
#include "etiss/Misc.h"
 
namespace etiss
{
namespace plugin
{
 
class MemoryDeviceMapper : public etiss::SystemWrapperPlugin
{
  public:
    const std::string name_;
    MemoryDeviceMapper(std::string name);
    virtual ~MemoryDeviceMapper();
    virtual ETISS_System *wrap(ETISS_CPU *cpu, ETISS_System *system);
    virtual ETISS_System *unwrap(ETISS_CPU *cpu, ETISS_System *system);
 
    // similar to etiss::System interface but not overrideable to increase performance
    etiss::int32 iread(ETISS_System *sys, ETISS_CPU *cpu, etiss::uint64 addr, etiss::uint32 len);
    etiss::int32 iwrite(ETISS_System *sys, ETISS_CPU *cpu, etiss::uint64 addr, etiss::uint8 *buf, etiss::uint32 len);
    etiss::int32 dread(ETISS_System *sys, ETISS_CPU *cpu, etiss::uint64 addr, etiss::uint8 *buf, etiss::uint32 len);
    etiss::int32 dwrite(ETISS_System *sys, ETISS_CPU *cpu, etiss::uint64 addr, etiss::uint8 *buf, etiss::uint32 len);
    etiss::int32 dbg_read(ETISS_System *sys, etiss::uint64 addr, etiss::uint8 *buf, etiss::uint32 len);
    etiss::int32 dbg_write(ETISS_System *sys, etiss::uint64 addr, etiss::uint8 *buf, etiss::uint32 len);
 
    inline const std::vector<etiss::System *> &devices() { return devices_; }
 
    virtual int map(bool ibus, bool read, bool dbg, uint64_t addr, uint8_t *buf, unsigned len, unsigned &newlen);
 
    virtual bool mount(etiss::System *sys, uint64_t mask, uint64_t addr);
 
  protected:
    std::vector<etiss::System *> devices_;
    std::vector<std::pair<uint64_t, uint64_t>> mountPoints_;
 
  private:
};
 
} // namespace plugin
} // namespace etiss
 
#endif // ETISS_PLUGIN_MEMORYDEVICE_H