ec06c63cc7
make it so that pio devices must respond with some delay.
dev/io_device.cc:
don't forget to include dma_interface.hh so we could use it.
dev/io_device.hh:
the generic BusInterface isn't enough for doing DMA
we need the actual DMAInterface
--HG--
extra : convert_revision : 70298d33c8520a3f4ad11aa600825a8cec7e44bf
52 lines
2 KiB
C++
52 lines
2 KiB
C++
/*
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* Copyright (c) 2003 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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#include "dev/io_device.hh"
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#include "mem/bus/base_interface.hh"
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#include "mem/bus/dma_interface.hh"
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PioDevice::PioDevice(const std::string &name)
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: FunctionalMemory(name), pioInterface(NULL)
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{}
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PioDevice::~PioDevice()
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{
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if (pioInterface)
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delete pioInterface;
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}
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DmaDevice::DmaDevice(const std::string &name)
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: PioDevice(name), dmaInterface(NULL)
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{}
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DmaDevice::~DmaDevice()
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{
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if (dmaInterface)
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delete dmaInterface;
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}
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