mirror of https://github.com/FOME-Tech/fome-fw.git
116 lines
4.0 KiB
C++
116 lines
4.0 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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class OutputPin {
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public:
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OutputPin();
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void setValue(int logicValue);
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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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pin_output_mode_e *modePtr;
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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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};
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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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const char *getPinName(io_pin_e io_pin);
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#if EFI_PROD_CODE
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#define isPinAssigned(pin) (outputs[(pin)].port != GPIO_NULL)
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#else
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#define isPinAssigned(pin) (true)
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#endif
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#if EFI_PROD_CODE
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#define doSetOutputPinValue2(output, logicValue) { \
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if (output->port != GPIO_NULL) { \
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efiAssertVoid(output->modePtr!=NULL, "pin mode not initialized"); \
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pin_output_mode_e mode = *output->modePtr; \
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efiAssertVoid(mode <= OM_OPENDRAIN_INVERTED, "invalid pin_output_mode_e"); \
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int eValue = getElectricalValue(logicValue, mode); \
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setPinValue(output, eValue, logicValue); \
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} \
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}
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#else
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#define doSetOutputPinValue2(output, logicValue) { \
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pin_output_mode_e mode = OM_DEFAULT; \
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int eValue = getElectricalValue(logicValue, mode); \
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setPinValue(output, eValue, logicValue); \
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}
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#endif
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#define doSetOutputPinValue(pin, logicValue) doSetOutputPinValue2((&outputs[pin]), logicValue)
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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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