text: /*
   * Copyright (c) 2006 The Regents of The University of Michigan
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are
   * met: redistributions of source code must retain the above copyright
   * notice, this list of conditions and the following disclaimer;
   * redistributions in binary form must reproduce the above copyright
   * notice, this list of conditions and the following disclaimer in the
   * documentation and/or other materials provided with the distribution;
   * neither the name of the copyright holders nor the names of its
   * contributors may be used to endorse or promote products derived from
   * this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
   * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   *
   * Authors: Ali Saidi
   */
  
  /** @file
   * This device acts as a disk similar to the memory mapped disk device
   * in legion. Any access is translated to an offset in the disk image.
   */
  
  #ifndef __DEV_SPARC_MM_DISK_HH__
  #define __DEV_SPARC_MM_DISK_HH__
  
  #include "dev/disk_image.hh"
  #include "dev/io_device.hh"
  #include "params/MmDisk.hh"
  
  class MmDisk : public BasicPioDevice
  {
    private:
      DiskImage *image;
      off_t curSector;
      bool dirty;
      uint8_t diskData[SectorSize];
  
    public:
      typedef MmDiskParams Params;
      MmDisk(const Params *p);
  
      const Params *
      params() const
      {
          return dynamic_cast<const Params *>(_params);
      }
  
      virtual Tick read(PacketPtr pkt);
      virtual Tick write(PacketPtr pkt);
  
      void serialize(CheckpointOut &cp) const M5_ATTR_OVERRIDE;
  };
  
  #endif //__DEV_SPARC_MM_DISK_HH__
  
  