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 * Time of date device implementation
33 */
34#include "dev/sparc/dtod.hh"
35
36#include <sys/time.h>
37
38#include <deque>
39#include <string>
40#include <vector>
41
42#include "base/time.hh"
43#include "base/trace.hh"
44#include "dev/platform.hh"
45#include "mem/packet_access.hh"
46#include "mem/port.hh"
47#include "sim/system.hh"
48
49using namespace std;
50
51DumbTOD::DumbTOD(const Params *p)
52    : BasicPioDevice(p, 0x08)
53{
54    struct tm tm = p->time;
55    todTime = mkutctime(&tm);
56
57    DPRINTFN("Real-time clock set to %s\n", asctime(&tm));
58    DPRINTFN("Real-time clock set to %d\n", todTime);
59}
60
61Tick
62DumbTOD::read(PacketPtr pkt)
63{
64    assert(pkt->getAddr() >= pioAddr && pkt->getAddr() < pioAddr + pioSize);
65    assert(pkt->getSize() == 8);
66
67    pkt->setBE(todTime);
68    todTime += 1000;
69
70    pkt->makeAtomicResponse();
71    return pioDelay;
72}
73
74Tick
75DumbTOD::write(PacketPtr pkt)
76{
77    panic("Dumb tod device doesn't support writes\n");
78}
79
80void
81DumbTOD::serialize(CheckpointOut &cp) const
82{
83    SERIALIZE_SCALAR(todTime);
84}
85
86void
87DumbTOD::unserialize(CheckpointIn &cp)
88{
89    UNSERIALIZE_SCALAR(todTime);
90}
91
92DumbTOD *
93DumbTODParams::create()
94{
95    return new DumbTOD(this);
96}
97