99 lines
2.8 KiB
C++
99 lines
2.8 KiB
C++
/*
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* Copyright (c) 2004-2006 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Authors: Ali Saidi
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*/
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/** @file
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* Time of date device implementation
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*/
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#include "dev/sparc/dtod.hh"
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#include <sys/time.h>
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#include <deque>
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#include <string>
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#include <vector>
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#include "base/time.hh"
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#include "base/trace.hh"
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#include "config/the_isa.hh"
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#include "dev/platform.hh"
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#include "mem/packet_access.hh"
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#include "mem/port.hh"
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#include "sim/system.hh"
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using namespace std;
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using namespace TheISA;
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DumbTOD::DumbTOD(const Params *p)
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: BasicPioDevice(p, 0x08)
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{
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struct tm tm = p->time;
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todTime = mkutctime(&tm);
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DPRINTFN("Real-time clock set to %s\n", asctime(&tm));
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DPRINTFN("Real-time clock set to %d\n", todTime);
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}
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Tick
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DumbTOD::read(PacketPtr pkt)
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{
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assert(pkt->getAddr() >= pioAddr && pkt->getAddr() < pioAddr + pioSize);
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assert(pkt->getSize() == 8);
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pkt->set(todTime);
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todTime += 1000;
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pkt->makeAtomicResponse();
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return pioDelay;
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}
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Tick
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DumbTOD::write(PacketPtr pkt)
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{
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panic("Dumb tod device doesn't support writes\n");
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}
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void
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DumbTOD::serialize(CheckpointOut &cp) const
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{
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SERIALIZE_SCALAR(todTime);
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}
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void
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DumbTOD::unserialize(CheckpointIn &cp)
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{
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UNSERIALIZE_SCALAR(todTime);
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}
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DumbTOD *
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DumbTODParams::create()
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{
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return new DumbTOD(this);
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}
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