dtod.cc revision 4762
13914Ssaidi@eecs.umich.edu/* 23914Ssaidi@eecs.umich.edu * Copyright (c) 2004-2006 The Regents of The University of Michigan 33914Ssaidi@eecs.umich.edu * All rights reserved. 43914Ssaidi@eecs.umich.edu * 53914Ssaidi@eecs.umich.edu * Redistribution and use in source and binary forms, with or without 63914Ssaidi@eecs.umich.edu * modification, are permitted provided that the following conditions are 73914Ssaidi@eecs.umich.edu * met: redistributions of source code must retain the above copyright 83914Ssaidi@eecs.umich.edu * notice, this list of conditions and the following disclaimer; 93914Ssaidi@eecs.umich.edu * redistributions in binary form must reproduce the above copyright 103914Ssaidi@eecs.umich.edu * notice, this list of conditions and the following disclaimer in the 113914Ssaidi@eecs.umich.edu * documentation and/or other materials provided with the distribution; 123914Ssaidi@eecs.umich.edu * neither the name of the copyright holders nor the names of its 133914Ssaidi@eecs.umich.edu * contributors may be used to endorse or promote products derived from 143914Ssaidi@eecs.umich.edu * this software without specific prior written permission. 153914Ssaidi@eecs.umich.edu * 163914Ssaidi@eecs.umich.edu * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 173914Ssaidi@eecs.umich.edu * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 183914Ssaidi@eecs.umich.edu * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 193914Ssaidi@eecs.umich.edu * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 203914Ssaidi@eecs.umich.edu * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 213914Ssaidi@eecs.umich.edu * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 223914Ssaidi@eecs.umich.edu * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 233914Ssaidi@eecs.umich.edu * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 243914Ssaidi@eecs.umich.edu * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 253914Ssaidi@eecs.umich.edu * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 263914Ssaidi@eecs.umich.edu * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 273914Ssaidi@eecs.umich.edu * 283914Ssaidi@eecs.umich.edu * Authors: Ali Saidi 293914Ssaidi@eecs.umich.edu */ 303914Ssaidi@eecs.umich.edu 313914Ssaidi@eecs.umich.edu/** @file 323914Ssaidi@eecs.umich.edu * Time of date device implementation 333914Ssaidi@eecs.umich.edu */ 343914Ssaidi@eecs.umich.edu#include <sys/time.h> 353914Ssaidi@eecs.umich.edu 363914Ssaidi@eecs.umich.edu#include <deque> 373914Ssaidi@eecs.umich.edu#include <string> 383914Ssaidi@eecs.umich.edu#include <vector> 393914Ssaidi@eecs.umich.edu 404762Snate@binkert.org#include "base/time.hh" 413914Ssaidi@eecs.umich.edu#include "base/trace.hh" 423914Ssaidi@eecs.umich.edu#include "dev/sparc/dtod.hh" 433914Ssaidi@eecs.umich.edu#include "dev/platform.hh" 443914Ssaidi@eecs.umich.edu#include "mem/packet_access.hh" 453914Ssaidi@eecs.umich.edu#include "mem/port.hh" 463914Ssaidi@eecs.umich.edu#include "sim/system.hh" 473914Ssaidi@eecs.umich.edu 483914Ssaidi@eecs.umich.eduusing namespace std; 493914Ssaidi@eecs.umich.eduusing namespace TheISA; 503914Ssaidi@eecs.umich.edu 514762Snate@binkert.orgDumbTOD::DumbTOD(const Params *p) 523943Sbinkertn@umich.edu : BasicPioDevice(p) 533914Ssaidi@eecs.umich.edu{ 544762Snate@binkert.org struct tm tm = p->time; 553990Ssaidi@eecs.umich.edu char *tz; 563990Ssaidi@eecs.umich.edu 573914Ssaidi@eecs.umich.edu pioSize = 0x08; 583914Ssaidi@eecs.umich.edu 593990Ssaidi@eecs.umich.edu tz = getenv("TZ"); 603990Ssaidi@eecs.umich.edu setenv("TZ", "", 1); 613990Ssaidi@eecs.umich.edu tzset(); 623990Ssaidi@eecs.umich.edu todTime = mktime(&tm); 633990Ssaidi@eecs.umich.edu if (tz) 643990Ssaidi@eecs.umich.edu setenv("TZ", tz, 1); 653990Ssaidi@eecs.umich.edu else 663990Ssaidi@eecs.umich.edu unsetenv("TZ"); 673990Ssaidi@eecs.umich.edu tzset(); 683943Sbinkertn@umich.edu 693914Ssaidi@eecs.umich.edu DPRINTFN("Real-time clock set to %s\n", asctime(&tm)); 703914Ssaidi@eecs.umich.edu DPRINTFN("Real-time clock set to %d\n", todTime); 713914Ssaidi@eecs.umich.edu} 723914Ssaidi@eecs.umich.edu 733914Ssaidi@eecs.umich.eduTick 743914Ssaidi@eecs.umich.eduDumbTOD::read(PacketPtr pkt) 753914Ssaidi@eecs.umich.edu{ 763914Ssaidi@eecs.umich.edu assert(pkt->result == Packet::Unknown); 773914Ssaidi@eecs.umich.edu assert(pkt->getAddr() >= pioAddr && pkt->getAddr() < pioAddr + pioSize); 783914Ssaidi@eecs.umich.edu assert(pkt->getSize() == 8); 793914Ssaidi@eecs.umich.edu 803914Ssaidi@eecs.umich.edu pkt->allocate(); 813914Ssaidi@eecs.umich.edu pkt->set(todTime); 823914Ssaidi@eecs.umich.edu todTime += 1000; 833914Ssaidi@eecs.umich.edu 843914Ssaidi@eecs.umich.edu pkt->result = Packet::Success; 853914Ssaidi@eecs.umich.edu return pioDelay; 863914Ssaidi@eecs.umich.edu} 873914Ssaidi@eecs.umich.edu 883914Ssaidi@eecs.umich.eduTick 893914Ssaidi@eecs.umich.eduDumbTOD::write(PacketPtr pkt) 903914Ssaidi@eecs.umich.edu{ 913914Ssaidi@eecs.umich.edu panic("Dumb tod device doesn't support writes\n"); 923914Ssaidi@eecs.umich.edu} 933914Ssaidi@eecs.umich.edu 943990Ssaidi@eecs.umich.eduvoid 953990Ssaidi@eecs.umich.eduDumbTOD::serialize(std::ostream &os) 963990Ssaidi@eecs.umich.edu{ 973990Ssaidi@eecs.umich.edu SERIALIZE_SCALAR(todTime); 983990Ssaidi@eecs.umich.edu} 993990Ssaidi@eecs.umich.edu 1003990Ssaidi@eecs.umich.eduvoid 1013990Ssaidi@eecs.umich.eduDumbTOD::unserialize(Checkpoint *cp, const std::string §ion) 1023990Ssaidi@eecs.umich.edu{ 1033990Ssaidi@eecs.umich.edu UNSERIALIZE_SCALAR(todTime); 1043990Ssaidi@eecs.umich.edu} 1053990Ssaidi@eecs.umich.edu 1064762Snate@binkert.orgDumbTOD * 1074762Snate@binkert.orgDumbTODParams::create() 1083914Ssaidi@eecs.umich.edu{ 1094762Snate@binkert.org return new DumbTOD(this); 1103914Ssaidi@eecs.umich.edu} 111