Gpio Class Reference

Class for GPIO manipulations. More...

#include <gpio.h>

Public Member Functions
int	setDirection (const char *pin, int direction)
	Set direction. More...
void	setDirections (int lsbPins, int msbPins, int lsbDirs, int msbDirs)
	Set directions for all pins simultaneously (see bit arithmetic) More...
int	getDirection (const char *pin)
	Get direction. More...
void	getDirections (int &lsbDirs, int &msbDirs)
	Get directions for all pins simultaneously (see bit arithmetic) More...
GpioReturn	getDirections ()
	Get directions for all pins simultaneously. More...
int	setValue (const char *pin, unsigned int value)
	Set value. More...
void	setValues (int lsbPins, int msbPins, int lsbValues, int msbValues)
	Set values for all pins simultaneously (see bit arithmetic) More...
unsigned int	getValue (const char *pin)
	Get value. More...
void	getValues (int &lsbValues, int &msbValues)
	Get values for all pins simultaneously (see bit arithmetic) More...
GpioReturn	getValues ()
	Get directions for all pins simultaneously. More...
unsigned int	getPinNumber (const char *pin)
	Get CPU pin number. More...

Detailed Description

Class for GPIO manipulations.

Examples:

gpio.cpp.

Member Function Documentation

int Gpio::getDirection

(

const char *

pin

)

Get direction.

Parameters

pin	String name of pin (eg: S1A, S9D)

Returns

Pin direction (0 for input, 1 for output)

Examples:

gpio.cpp.

void Gpio::getDirections	(	int &	lsbDirs,
		int &	msbDirs
	)

Get directions for all pins simultaneously (see bit arithmetic)

Parameters

lsbDirs	Directions for first group: pins S1A...S15D (0 for input, 1 for output)
msbDirs	Directions for second group: pins S17A...S25D (0 for input, 1 for output)

GpioReturn Gpio::getDirections

(

)

Get directions for all pins simultaneously.

Returns

GpioReturn structure

unsigned int Gpio::getPinNumber

(

const char *

pin

)

Get CPU pin number.

Parameters

pin	String name of pin (eg: S1A, S9D)

Returns

CPU pin number

unsigned int Gpio::getValue

(

const char *

pin

)

Get value.

Parameters

pin	String name of pin (eg: S1A, S9D)

Returns

Pin value (0 or 1)

Examples:

gpio.cpp.

void Gpio::getValues	(	int &	lsbValues,
		int &	msbValues
	)

Get values for all pins simultaneously (see bit arithmetic)

Parameters

lsbValues	Values for first group: pins S1A...S15D (0 for input, 1 for output)
msbValues	Values for second group: pins S17A...S25D (0 for input, 1 for output)

GpioReturn Gpio::getValues

(

)

Get directions for all pins simultaneously.

Returns

GpioReturn structure

int Gpio::setDirection	(	const char *	pin,
		int	direction
	)

Set direction.

Parameters

pin	String name of pin (eg: S1A, S9D)
direction	Pin direction (0 for input, 1 for output)

Returns

Result (0 on success)

Examples:

gpio.cpp.

void Gpio::setDirections	(	int	lsbPins,
		int	msbPins,
		int	lsbDirs,
		int	msbDirs
	)

Set directions for all pins simultaneously (see bit arithmetic)

Parameters

lsbPins	Applicable bits: pins S1A...S15D (LSB bit 0 - pin S1A, bit 1 - pin S1B,.., MSB bit 31 - pin S15D)
msbPins	Applicable bits: pins S17A..S25C (LSB bit 0 - pin S17A, bit 1 - pin S17B,..., MSB bit 18 - pin S25D)
lsbDirs	Directions for first group: pins S1A...S15D (0 for input, 1 for output)
msbDirs	Directions for second group: pins S17A...S25D (0 for input, 1 for output)

int Gpio::setValue	(	const char *	pin,
		unsigned int	value
	)

Set value.

Parameters

pin	String name of pin (eg: S1A, S9D)
value	Pin value (0 or 1)

Returns

Result (< 0 on error)

Examples:

gpio.cpp.

void Gpio::setValues	(	int	lsbPins,
		int	msbPins,
		int	lsbValues,
		int	msbValues
	)

Set values for all pins simultaneously (see bit arithmetic)

Parameters

lsbPins	Applicable bits: pins S1A...S15D (LSB bit 0 - pin S1A, bit 1 - pin S1B,.., MSB bit 31 - pin S15D)
msbPins	Applicable bits: pins S17A..S25C (LSB bit 0 - pin S17A, bit 1 - pin S17B,..., MSB bit 18 - pin S25D)
lsbValues	Values for first group: pins S1A...S15D (0 or 1)
msbValues	Values for second group: pins S17A...S25D (0 or 1)

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The documentation for this class was generated from the following file:

• gpio.h