mirror of https://github.com/FOME-Tech/fome-fw.git
86 lines
2.7 KiB
C
86 lines
2.7 KiB
C
/**
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* @file efiGpio.h
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*
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* @date Sep 26, 2014
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* @author Andrey Belomutskiy, (c) 2012-2014
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*/
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#ifndef EFIGPIO_H_
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#define EFIGPIO_H_
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#include "main.h"
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#include "io_pins.h"
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/**
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* @brief Single output pin reference and state
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*/
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typedef struct {
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#if EFI_PROD_CODE
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GPIO_TypeDef *port;
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int pin;
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#endif /* EFI_PROD_CODE */
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/**
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* we track current pin status so that we do not touch the actual hardware if we want to write new pin bit
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* which is same as current pin value. This maybe helps in case of status leds, but maybe it's a total over-engineering
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*/
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int currentLogicValue;
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} OutputPin;
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/**
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* it's a macro to be sure that stack is not used
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* @return 0 for OM_DEFAULT and OM_OPENDRAIN
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*/
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#define getElectricalValue0(mode) ((mode) == OM_INVERTED || (mode) == OM_OPENDRAIN_INVERTED)
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/**
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* it's a macro to be sure that stack is not used
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* @return 1 for OM_DEFAULT and OM_OPENDRAIN
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*/
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#define getElectricalValue1(mode) ((mode) == OM_DEFAULT || (mode) == OM_OPENDRAIN)
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#define getLogicPinValue(outputPin) ((outputPin)->currentLogicValue)
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/**
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* Sets the value of the pin. On this layer the value is assigned as is, without any conversion.
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*/
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#if EFI_PROD_CODE \
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#define setPinValue(outputPin, electricalValue, logicValue) \
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{ \
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if (getLogicPinValue(outputPin) != (logicValue)) { \
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palWritePad((outputPin)->port, (outputPin)->pin, (electricalValue)); \
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(outputPin)->currentLogicValue = (logicValue); \
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} \
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}
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#else /* EFI_PROD_CODE */
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#define setPinValue(outputPin, electricalValue, logicValue) \
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{ \
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if (getLogicPinValue(outputPin) != (logicValue)) { \
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(outputPin)->currentLogicValue = (logicValue); \
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} \
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}
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#endif /* EFI_PROD_CODE */
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#define turnOutputPinOn(pin) setOutputPinValue((pin), true)
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#define turnOutputPinOff(pin) setOutputPinValue((pin), false)
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#define getElectricalValue(logicalValue, mode) \
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(logicalValue ? getElectricalValue1(mode) : getElectricalValue0(mode))
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#ifdef __cplusplus
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extern "C"
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{
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#endif /* __cplusplus */
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int getOutputPinValue(io_pin_e pin);
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void setOutputPinValue(io_pin_e pin, int logicValue);
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bool isPinAssigned(io_pin_e pin);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* EFIGPIO_H_ */
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