io_pins.cpp File Reference

Detailed Description

his file is about general input/output utility methods, not much EFI-specifics

Date

Jan 24, 2013

Author

Andrey Belomutskiy, (c) 2012-2020

Definition in file io_pins.cpp.

Functions
void	efiSetPadUnused (brain_pin_e brainPin)
void	efiSetPadMode (const char *msg, brain_pin_e brainPin, iomode_t mode)
void	efiSetPadModeWithoutOwnershipAcquisition (const char *msg, brain_pin_e brainPin, iomode_t mode)
bool	efiReadPin (brain_pin_e pin)
iomode_t	getInputMode (pin_input_mode_e mode)
void	writePad (const char *msg, brain_pin_e pin, int bit)
void	setMockState (brain_pin_e pin, bool state)
bool	efiIsInputPinInverted (pin_input_mode_e mode)
bool	efiReadPin (brain_pin_e pin, pin_input_mode_e mode)

Variables
bool	mockPinStates [BRAIN_PIN_COUNT]

Function Documentation

efiIsInputPinInverted()

bool efiIsInputPinInverted

(

pin_input_mode_e

mode

)

Definition at line 138 of file io_pins.cpp.

                                                  {
    return ((mode == PI_INVERTED_DEFAULT) ||
            (mode == PI_INVERTED_PULLUP) ||
            (mode == PI_INVERTED_PULLDOWN));
}

Referenced by efiReadPin().

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efiReadPin() [1/2]

bool efiReadPin

(

brain_pin_e

pin

)

Definition at line 89 of file io_pins.cpp.

                                 {
    if (!isBrainPinValid(pin))
        return false;
    if (brain_pin_is_onchip(pin))
        return palReadPad(getHwPort("readPin", pin), getHwPin("readPin", pin));
    #if (BOARD_EXT_GPIOCHIPS > 0)
        else if (brain_pin_is_ext(pin))
            return (gpiochips_readPad(pin) > 0);
    #endif
 
    /* incorrect pin */
    return false;
}

Referenced by boardGetAnalogDiagnostic(), NitrousController::checkTriggerPinState(), efiReadPin(), flexExtiCallback(), getAuxDigital(), getBrakePedalState(), getClutchDownState(), getClutchUpState(), isIgnVoltage(), AntilagSystemBase::isInsideALSSwitchCondition(), LaunchControlBase::isInsideSwitchCondition(), HellaOilLevelSensor::onEdge(), ButtonDebounce::stopConfiguration(), GenericGearController::update(), and ShiftTorqueReductionController::updateTriggerPinState().

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efiReadPin() [2/2]

bool efiReadPin	(	brain_pin_e	pin,
		pin_input_mode_e	mode
	)

Definition at line 144 of file io_pins.cpp.

                                                        {
    return efiReadPin(pin) ^ efiIsInputPinInverted(mode);
}

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efiSetPadMode()

void efiSetPadMode	(	const char *	msg,
		brain_pin_e	brainPin,
		iomode_t	mode
	)

This method would set an error condition if pin is already used

Definition at line 48 of file io_pins.cpp.

                                                                         {
    if (!isBrainPinValid(brainPin)) {
        // No pin configured, nothing to do here.
        return;
    }
 
    bool wasUsed = brain_pin_markUsed(brainPin, msg);
 
    if (!wasUsed) {
        efiSetPadModeWithoutOwnershipAcquisition(msg, brainPin, mode);
    }
}

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efiSetPadModeWithoutOwnershipAcquisition()

void efiSetPadModeWithoutOwnershipAcquisition	(	const char *	msg,
		brain_pin_e	brainPin,
		iomode_t	mode
	)

Definition at line 61 of file io_pins.cpp.

                                                                                                    {
#if EFI_PROD_CODE
    /*check if on-chip pin or external */
    if (brain_pin_is_onchip(brainPin)) {
        /* on-chip */
        ioportid_t port = getHwPort(msg, brainPin);
        ioportmask_t pin = getHwPin(msg, brainPin);
        /* paranoid */
        if (!port)
            return;
 
        palSetPadMode(port, pin, mode);
    }
    #if (BOARD_EXT_GPIOCHIPS > 0)
        else {
            gpiochips_setPadMode(brainPin, mode);
        }
    #endif
 
#endif /* EFI_PROD_CODE */
}

Referenced by benchSetPinValue(), efiSetPadMode(), initQcBenchControls(), initSettings(), qcSetEtbState(), and setPin().

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efiSetPadUnused()

void efiSetPadUnused

(

brain_pin_e

brainPin

)

Definition at line 20 of file io_pins.cpp.

                                           {
#if EFI_PROD_CODE
    /* input with pull up, is it safe? */
    iomode_t mode = PAL_STM32_MODE_INPUT | PAL_STM32_PUPDR_PULLUP;
 
    if (brain_pin_is_onchip(brainPin)) {
        ioportid_t port = getHwPort("unused", brainPin);
        ioportmask_t pin = getHwPin("unused", brainPin);
 
        /* input with pull up, is it safe?
         * todo: shall we reuse 'default state' constants with board.h?
         * */
        palSetPadMode(port, pin, mode);
        palWritePad(port, pin, 0);
    }
    #if (BOARD_EXT_GPIOCHIPS > 0)
        else {
            gpiochips_setPadMode(brainPin, mode);
        }
    #endif
#endif /* EFI_PROD_CODE */
 
    brain_pin_markUnused(brainPin);
}

Referenced by applyNewHardwareSettings(), OutputPin::deInit(), deInitIfValid(), ButtonDebounce::stopConfiguration(), stopKLine(), stopSent(), stopSmartCsPins(), and stopSpi().

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getInputMode()

iomode_t getInputMode

(

pin_input_mode_e

mode

)

Definition at line 103 of file io_pins.cpp.

                                             {
    switch (mode) {
    case PI_PULLUP:
    case PI_INVERTED_PULLUP:
        return PAL_MODE_INPUT_PULLUP;
    case PI_PULLDOWN:
    case PI_INVERTED_PULLDOWN:
        return PAL_MODE_INPUT_PULLDOWN;
    case PI_DEFAULT:
    case PI_INVERTED_DEFAULT:
    default:
        return PAL_MODE_INPUT;
    }
}

Referenced by GenericGearController::init(), startInputPinIfValid(), and ButtonDebounce::stopConfiguration().

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setMockState()

void setMockState	(	brain_pin_e	pin,
		bool	state
	)

Definition at line 132 of file io_pins.cpp.

                                               {
    mockPinStates[static_cast<int>(pin)] = state;
}

Referenced by OutputPin::setValue().

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writePad()

void writePad	(	const char *	msg,
		brain_pin_e	pin,
		int	bit
	)

Definition at line 118 of file io_pins.cpp.

                                                         {
    palWritePad(getHwPort(msg, pin), getHwPin(msg, pin), bit);
}

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Variable Documentation

mockPinStates

bool mockPinStates[BRAIN_PIN_COUNT]

Definition at line 126 of file io_pins.cpp.

Referenced by setMockState().

Go to the source code of this file.