mirror of https://github.com/rusefi/rusefi-1.git
70 lines
2.5 KiB
C
70 lines
2.5 KiB
C
/*
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* global_shared.h
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*
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* part of global.h which is shared between firmware and simulator
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* See also common_headers.h
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*
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* Dec 25, 2018
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* @author Andrey Belomutskiy, (c) 2012-2019
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*/
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#ifndef GLOBAL_SHARED_H_
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#define GLOBAL_SHARED_H_
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/**
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* The following obscurantism is a hack to reduce stack usage, maybe even a questionable performance
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* optimization.
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*
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* rusEfi main processing happens on IRQ so PORT_INT_REQUIRED_STACK has to be pretty large. Problem
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* is that PORT_INT_REQUIRED_STACK is included within each user thread stack, thus this large stack multiplies
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* and this consumes a lot of valueable RAM. While forcing the compiler to inline helps to some degree,
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* it would be even better not to waste stack on passing the parameter.
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*
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* In the firmware we are using 'extern *Engine' - in the firmware Engine is a signleton
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*
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* On the other hand, in order to have a meaningful unit test we are passing Engine * engine as a parameter
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*/
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#define EXTERN_CONFIG \
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extern engine_configuration_s *engineConfiguration; \
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extern board_configuration_s *boardConfiguration; \
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extern persistent_config_s *config;
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#define EXTERN_ENGINE \
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extern Engine ___engine; \
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extern Engine *engine; \
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extern persistent_config_container_s persistentState; \
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EXTERN_CONFIG \
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extern engine_configuration_s activeConfiguration; \
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extern EnginePins enginePins
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// Use this macro to declare a function which only takes magic references
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#define DECLARE_ENGINE_PARAMETER_SIGNATURE void
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// Use this version of the macro as the suffix if method has other parameters
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#define DECLARE_ENGINE_PARAMETER_SUFFIX
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// Pass this if only magic references are needed
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#define PASS_ENGINE_PARAMETER_SIGNATURE
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// Pass this after some other parameters are passed
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#define PASS_ENGINE_PARAMETER_SUFFIX
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// these macro are used when we should not have visibility to 'engine'
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#define DECLARE_CONFIG_PARAMETER_SIGNATURE void
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#define DECLARE_CONFIG_PARAMETER_SUFFIX
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#define PASS_CONFIG_PARAMETER_SIGNATURE
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#define PASS_CONFIG_PARAMETER_SUFFIX
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/**
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* this macro allows the compiled to figure out the complete static address, that's a performance
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* optimization which is hopefully useful at least for anything trigger-related
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*/
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#define CONFIG(x) persistentState.persistentConfiguration.engineConfiguration.x
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#define CONFIGB(x) persistentState.persistentConfiguration.engineConfiguration.bc.x
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#define ENGINE(x) ___engine.x
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#define DEFINE_CONFIG_PARAM(x, y)
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#define CONFIG_PARAM(x) CONFIG(x)
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#define PASS_CONFIG_PARAM(x)
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#endif /* GLOBAL_SHARED_H_ */
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