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166
include/hal_core/netlist/gate_library/enums/pin_event.h
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| // MIT License | ||
| // | ||
| // Copyright (c) 2019 Ruhr University Bochum, Chair for Embedded Security. All Rights reserved. | ||
| // Copyright (c) 2019 Marc Fyrbiak, Sebastian Wallat, Max Hoffmann ("ORIGINAL AUTHORS"). All rights reserved. | ||
| // Copyright (c) 2021 Max Planck Institute for Security and Privacy. All Rights reserved. | ||
| // Copyright (c) 2021 Jörn Langheinrich, Julian Speith, Nils Albartus, René Walendy, Simon Klix ("ORIGINAL AUTHORS"). All Rights reserved. | ||
| // | ||
| // Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| // of this software and associated documentation files (the "Software"), to deal | ||
| // in the Software without restriction, including without limitation the rights | ||
| // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| // copies of the Software, and to permit persons to whom the Software is | ||
| // furnished to do so, subject to the following conditions: | ||
| // | ||
| // The above copyright notice and this permission notice shall be included in all | ||
| // copies or substantial portions of the Software. | ||
| // | ||
| // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | ||
| // SOFTWARE. | ||
|
|
||
| #pragma once | ||
|
|
||
| #include "hal_core/utilities/enums.h" | ||
| #include "hal_core/defines.h" | ||
| #include <unordered_map> | ||
| #include <vector> | ||
|
|
||
| namespace hal | ||
| { | ||
| /** | ||
| * Spezifies the pin_changed event type | ||
| * | ||
| * The order of events in enum class defines the order in which events are handled. | ||
| * | ||
| */ | ||
| enum class PinEvent | ||
| { | ||
| unknown, | ||
| GroupCreate, /// new pin group created | ||
| GroupRename, /// pin group renamed | ||
| GroupTypeChange, /// changed PinType attribute of group (like data) | ||
| GroupDirChange, /// changed PinDirection attribute of group (like input) | ||
| GroupReorder, /// moved group to a new position within containing module | ||
| PinCreate, /// new pin created | ||
| PinAssignToGroup, /// pin assigned to new group | ||
| PinRename, /// pin renamed | ||
| PinTypeChange, /// changed PinType attribute of pin (like data) | ||
| PinDirChange, /// changed PinDirection attribute of pin (like input) | ||
| PinReorder, /// moved pin to a new position within containing group | ||
| PinDelete, /// pin deleted | ||
| GroupDelete /// group deleted | ||
| }; | ||
|
|
||
| template<> | ||
| std::map<PinEvent, std::string> EnumStrings<PinEvent>::data; | ||
|
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| class Module; | ||
|
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| /** | ||
| * Wrapper class for core pin_changed events. | ||
| * | ||
| * Events can be send immediately or stacked and send at according to their priority. | ||
| */ | ||
| class PinChangedEvent | ||
| { | ||
| friend bool pin_event_order(const PinChangedEvent& a, const PinChangedEvent& b); | ||
| friend class PinChangedEventScope; | ||
|
|
||
| /** | ||
| * Subclass for event stack. | ||
| */ | ||
| class EventStack : public std::vector<PinChangedEvent> | ||
| { | ||
| public: | ||
| /** | ||
| * Scope count indicates the nesting depth of event-throwing subroutines. | ||
| * Only the top level (m_count=0) is allowed to send the events from stack. | ||
| */ | ||
| int m_count; | ||
|
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| /** | ||
| * Construct empty stack | ||
| */ | ||
| EventStack() : m_count(0) {;} | ||
|
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| /** | ||
| * Attempts to send events, typically at the end of a pin-changing subroutine. | ||
| * Events will only be send if m_count is zero. | ||
| */ | ||
| void send_events(Module* m); | ||
| }; | ||
|
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| static std::unordered_map<Module*,EventStack*> s_event_stack; | ||
|
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| Module* m_module; | ||
| PinEvent m_event; | ||
| u32 m_id; | ||
|
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| public: | ||
| /** | ||
| * PinChangedEvent class for single event | ||
| * @param m - The module comprising pins and pin groups | ||
| * @param pev - The pin event enum | ||
| * @param id - pin or pin group ID | ||
| */ | ||
| PinChangedEvent(Module* m, PinEvent pev, u32 id); | ||
|
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| /** | ||
| * Returns the module for which pins or pin groups have been changed | ||
| * @return The module comprising pins and pin groups | ||
| */ | ||
| Module* get_module() const; | ||
|
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||
| /** | ||
| * Return bitwise binary encoded PinEvent and ID | ||
| * 4LSB = The pin event enum as 4 bit int | ||
| * 28HSB = The ID as 28 bit int | ||
| * @return The bitcode according to scheme above | ||
| */ | ||
| u32 associated_data(); | ||
|
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||
| /** | ||
| * Attempts to send event. | ||
| * If this routine or any calling routine wants to collect events the event gets written on stack instead. | ||
| */ | ||
| void send(); | ||
| }; | ||
|
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| /** | ||
| * By creating an instance of this class a new scope gets created thus collecting events. | ||
| */ | ||
| class PinChangedEventScope | ||
| { | ||
| Module* m_module; | ||
| public: | ||
|
|
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| /** | ||
| * Constructor for scope instance incrementing scope count | ||
| * @param m The module comprising pins and pin groups | ||
| */ | ||
| PinChangedEventScope(Module* m); | ||
|
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| /** | ||
| * Destructor for scope instance decrementing scope count | ||
| */ | ||
| ~PinChangedEventScope(); | ||
|
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| /** | ||
| * Attempts to send all stacked events. Will do nothing if not issued from top-level scope. | ||
| */ | ||
| void send_events(); | ||
| }; | ||
|
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| /** | ||
| * Function used by sort algorithm to organize events according to their priority. | ||
| * @param a - Pin changed event A | ||
| * @param b - Pin changed event B | ||
| * @return true if A should be handled before B, false otherwise. | ||
| */ | ||
| bool pin_event_order(const PinChangedEvent& a, const PinChangedEvent& b); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
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@@ -187,4 +187,4 @@ namespace hal | |
| { | ||
| } | ||
| }; | ||
| } // namespace hal | ||
| } // namespace hal | ||
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