bdb2820218
Change-Id: I0907a6f1ada3038305c2d83a350a8d435ac657ba Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/25403 Reviewed-by: Bobby R. Bruce <bbruce@ucdavis.edu> Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br> Maintainer: Bobby R. Bruce <bbruce@ucdavis.edu> Tested-by: kokoro <noreply+kokoro@google.com>
119 lines
3.4 KiB
C++
119 lines
3.4 KiB
C++
/*
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* Copyright 2019 Google, Inc.
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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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#ifndef __DEV_INTPIN_HH__
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#define __DEV_INTPIN_HH__
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#include "sim/port.hh"
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class IntSourcePinBase;
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class IntSinkPinBase : public Port
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{
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protected:
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friend IntSourcePinBase;
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IntSourcePinBase *source = nullptr;
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int _number = 0;
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bool _state = false;
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IntSinkPinBase(const std::string &_name, PortID _id, int num) :
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Port(_name, _id), _number(num)
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{}
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virtual void raiseOnDevice() = 0;
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virtual void lowerOnDevice() = 0;
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void
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raise()
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{
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_state = true;
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raiseOnDevice();
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}
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void
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lower()
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{
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_state = false;
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lowerOnDevice();
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}
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public:
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int number() { return _number; }
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bool state() { return _state; }
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void bind(Port &peer) override;
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void unbind() override;
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};
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template <class Device>
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class IntSinkPin : public IntSinkPinBase
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{
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private:
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Device *device = nullptr;
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void raiseOnDevice() override { device->raiseInterruptPin(number()); }
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void lowerOnDevice() override { device->lowerInterruptPin(number()); }
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public:
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IntSinkPin(const std::string &_name, PortID _id, Device *dev, int num) :
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IntSinkPinBase(_name, _id, num), device(dev) {}
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IntSinkPin(const std::string &_name, PortID _id, Device *dev) :
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IntSinkPin(_name, _id, dev, _id) {}
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};
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class IntSourcePinBase : public Port
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{
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private:
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IntSinkPinBase *sink = nullptr;
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bool _state = false;
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public:
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IntSourcePinBase(const std::string &_name, PortID _id, bool def_state) :
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Port(_name, _id), _state(def_state)
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{}
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void raise() { sink->raise(); }
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void lower() { sink->lower(); }
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void bind(Port &peer) override;
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void unbind() override;
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};
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template <class Device>
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class IntSourcePin : public IntSourcePinBase
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{
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public:
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IntSourcePin(const std::string &_name, PortID _id, Device *owner,
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bool def_state=false) :
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IntSourcePinBase(_name, _id, def_state)
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{}
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};
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#endif //__DEV_INTPIN_HH__
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