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/*
* Copyright (c) 2004-2006 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
* Time of date device implementation
*/
#include <sys/time.h>
#include <deque>
#include <string>
#include <vector>
#include "base/time.hh"
#include "base/trace.hh"
#include "dev/sparc/dtod.hh"
#include "dev/platform.hh"
#include "mem/packet_access.hh"
#include "mem/port.hh"
#include "sim/system.hh"
using namespace std;
using namespace TheISA;
DumbTOD::DumbTOD(const Params *p)
: BasicPioDevice(p)
{
struct tm tm = p->time;
char *tz;
pioSize = 0x08;
tz = getenv("TZ");
setenv("TZ", "", 1);
tzset();
todTime = mktime(&tm);
if (tz)
setenv("TZ", tz, 1);
else
unsetenv("TZ");
tzset();
DPRINTFN("Real-time clock set to %s\n", asctime(&tm));
DPRINTFN("Real-time clock set to %d\n", todTime);
}
Tick
DumbTOD::read(PacketPtr pkt)
{
assert(pkt->result == Packet::Unknown);
assert(pkt->getAddr() >= pioAddr && pkt->getAddr() < pioAddr + pioSize);
assert(pkt->getSize() == 8);
pkt->allocate();
pkt->set(todTime);
todTime += 1000;
pkt->result = Packet::Success;
return pioDelay;
}
Tick
DumbTOD::write(PacketPtr pkt)
{
panic("Dumb tod device doesn't support writes\n");
}
void
DumbTOD::serialize(std::ostream &os)
{
SERIALIZE_SCALAR(todTime);
}
void
DumbTOD::unserialize(Checkpoint *cp, const std::string §ion)
{
UNSERIALIZE_SCALAR(todTime);
}
DumbTOD *
DumbTODParams::create()
{
return new DumbTOD(this);
}
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