amba_fake.cc

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/*
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 * property including but not limited to intellectual property relating
 * to a hardware implementation of the functionality of the software
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 * Copyright (c) 2005 The Regents of The University of Michigan
 * All rights reserved.
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 * Authors: Ali Saidi
 */

#include "dev/arm/amba_fake.hh"

#include "base/trace.hh"
#include "debug/AMBA.hh"
#include "mem/packet.hh"
#include "mem/packet_access.hh"

AmbaFake::AmbaFake(const Params *p)
    : AmbaPioDevice(p, 0x1000)
{
}

Tick
AmbaFake::read(PacketPtr pkt)
{
    assert(pkt->getAddr() >= pioAddr && pkt->getAddr() < pioAddr + pioSize);

    Addr daddr = pkt->getAddr() - pioAddr;

    DPRINTF(AMBA, " read register %#x\n", daddr);

    pkt->setLE<uint32_t>(0);
    if (!readId(pkt, ambaId, pioAddr) && !params()->ignore_access)
        panic("Tried to read AmbaFake %s at offset %#x that doesn't exist\n",
              name(), daddr);

    pkt->makeAtomicResponse();
    return pioDelay;
}

Tick
AmbaFake::write(PacketPtr pkt)
{

    Addr daddr = pkt->getAddr() - pioAddr;

    if (!params()->ignore_access)
        panic("Tried to write AmbaFake %s at offset %#x that doesn't exist\n",
              name(), daddr);

    pkt->makeAtomicResponse();
    return pioDelay;
}


AmbaFake *
AmbaFakeParams::create()
{
    return new AmbaFake(this);
}