1/*
2 * Copyright (c) 2004-2006 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 * Authors: Ali Saidi
29 */
30
31/** @file
32 * This device acts as a simple time of date device. It's implemented as a
33 * simple device register read.
34 */
35
36#ifndef __DEV_SPARC_DTOD_HH__
37#define __DEV_SPARC_DTOD_HH__
38
39#include <vector>
40
41#include "dev/io_device.hh"
42#include "params/DumbTOD.hh"
43
44/**
45 * DumbTOD simply returns some idea of time when read.  Until we finish with
46 * legion it starts with the start time and increments itself by 1000 each time.
47 */
48class DumbTOD : public BasicPioDevice
49{
50  private:
51    uint64_t todTime;
52
53  public:
54    typedef DumbTODParams Params;
55    DumbTOD(const Params *p);
56
57    const Params *
58    params() const
59    {
60        return dynamic_cast<const Params *>(_params);
61    }
62
63    Tick read(PacketPtr pkt) override;
64    Tick write(PacketPtr pkt) override;
65
66    void serialize(CheckpointOut &cp) const override;
67    void unserialize(CheckpointIn &cp) override;
68};
69
70#endif // __DEV_BADDEV_HH__
71