dev/simple_disk.hh

   1 /*
   2  * Copyright (c) 2001-2003 The Regents of The University of Michigan
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions are
   7  * met: redistributions of source code must retain the above copyright
   8  * notice, this list of conditions and the following disclaimer;
   9  * redistributions in binary form must reproduce the above copyright
  10  * notice, this list of conditions and the following disclaimer in the
  11  * documentation and/or other materials provided with the distribution;
  12  * neither the name of the copyright holders nor the names of its
  13  * contributors may be used to endorse or promote products derived from
  14  * this software without specific prior written permission.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  17  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  18  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  19  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  20  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  21  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  22  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  26  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 /* @file
  30  * Simple disk interface for the system console
  31  */
  32
  33 #ifndef __SIMPLE_DISK_HH__
  34 #define __SIMPLE_DISK_HH__
  35
  36 #include "mem/functional_mem/physical_memory.hh"
  37 #include "sim/sim_object.hh"
  38
  39 class DiskImage;
  40
  41 /*
  42  * Trivial interface to a disk image used by the System Console
  43  */
  44 class SimpleDisk : public SimObject
  45 {
  46 public:
  47   typedef uint64_t baddr_t;
  48
  49 protected:
  50   PhysicalMemory  *physmem;
  51   DiskImage *image;
  52
  53 public:
  54   SimpleDisk(const std::string &name, PhysicalMemory *pmem, DiskImage *img);
  55   ~SimpleDisk();
  56
  57   void read(Addr addr, baddr_t block, int count) const;
  58   void write(Addr addr, baddr_t block, int count);
  59 };
  60 #endif // __SIMPLE_DISK_HH__