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/*
* Copyright (c) 2004-2005 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: Gabe Black
*/
#ifndef __DEV_X86_SOUTH_BRIDGE_SUB_DEVICE_HH__
#define __DEV_X86_SOUTH_BRIDGE_SUB_DEVICE_HH__
#include "arch/x86/x86_traits.hh"
#include "base/range.hh"
#include "mem/packet.hh"
namespace X86ISA
{
class SubDevice
{
public:
Range<Addr> addrRange;
Tick latency;
virtual
~SubDevice()
{}
SubDevice()
{}
SubDevice(Tick _latency) : latency(_latency)
{}
SubDevice(Addr start, Addr size, Tick _latency) :
addrRange(RangeSize(x86IOAddress(start), size)), latency(_latency)
{}
virtual Tick
read(PacketPtr pkt)
{
assert(pkt->getSize() <= 4);
pkt->allocate();
const uint32_t neg1 = -1;
pkt->setData((uint8_t *)(&neg1));
return latency;
}
virtual Tick
write(PacketPtr pkt)
{
return latency;
}
};
}; // namespace X86ISA
#endif //__DEV_X86_SOUTH_BRIDGE_SUB_DEVICE_HH__
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