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/*
* Copyright (c) 2008 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_SPEAKER_HH__
#define __DEV_X86_SOUTH_BRIDGE_SPEAKER_HH__
#include "arch/x86/x86_traits.hh"
#include "base/range.hh"
#include "dev/x86/south_bridge/sub_device.hh"
namespace X86ISA
{
class I8254;
class Speaker : public SubDevice
{
protected:
BitUnion8(SpeakerControl)
Bitfield<0> gate;
Bitfield<1> speaker;
Bitfield<5> timer;
EndBitUnion(SpeakerControl)
SpeakerControl controlVal;
I8254 * timer;
public:
Speaker(I8254 * _timer) : timer(_timer)
{}
Speaker(I8254 * _timer, Tick _latency) :
SubDevice(_latency), timer(_timer)
{}
Speaker(I8254 * _timer, Addr start, Addr size, Tick _latency) :
SubDevice(start, size, _latency), timer(_timer)
{}
Tick read(PacketPtr pkt);
Tick write(PacketPtr pkt);
};
}; // namespace X86ISA
#endif //__DEV_X86_SOUTH_BRIDGE_SPEAKER_HH__
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