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| -rw-r--r-- | src/arch/arm/fastmodel/common/signal_receiver.hh | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/src/arch/arm/fastmodel/common/signal_receiver.hh b/src/arch/arm/fastmodel/common/signal_receiver.hh new file mode 100644 index 000000000..c249c3aaf --- /dev/null +++ b/src/arch/arm/fastmodel/common/signal_receiver.hh @@ -0,0 +1,75 @@ +/* + * Copyright 2019 Google, Inc. + * + * 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 __ARCH_ARM_FASTMODEL_COMMON_SIGNAL_RECEIVER_HH__ +#define __ARCH_ARM_FASTMODEL_COMMON_SIGNAL_RECEIVER_HH__ + +#include <amba_pv.h> +#include <functional> + +namespace FastModel +{ + +class SignalReceiver : public amba_pv::signal_slave_base<bool> +{ + public: + typedef std::function<void(bool)> OnChangeFunc; + + private: + bool _state; + OnChangeFunc _onChange; + + public: + amba_pv::signal_slave_export<bool> signal_in; + + SignalReceiver(const char *name) : SignalReceiver(name, nullptr) {} + + SignalReceiver(const char *name, OnChangeFunc on_change) : + amba_pv::signal_slave_base<bool>(name), + _state(false), _onChange(on_change) + { + signal_in.bind(*this); + } + + void onChange(OnChangeFunc func) { _onChange = func; } + + void + set_state(int export_id, const bool &new_state) override + { + if (new_state == _state) + return; + + _state = new_state; + _onChange(_state); + } +}; + +} // namespace FastModel + +#endif // __ARCH_ARM_FASTMODEL_COMMON_SIGNAL_RECEIVER_HH__ |