PAL

Collaboration diagram for PAL:

Data Structures
class	GPIORpi

Detailed Description

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Data Structure Documentation

GPIORpi

class GPIORpi

Inheritance diagram for GPIORpi:

Collaboration diagram for GPIORpi:

Public Types
Interrupt event
enum	IntEvent_t {   INT_FALLING_EDGE = 0 , INT_RISING_EDGE = 1 , INT_HIGH = 2 , INT_LOW = 3 ,   INT_CHANGE = 4 }
Voltage level
enum	VLevel_t { GPIO_LOW = 0 , GPIO_HIGH = 1 }
Voltage logic
enum	VLogic_t { NEGATIVE = 1 , POSITIVE = 2 }
Public Member Functions
	GPIORpi ()
	GPIO Rpi constructor.
	GPIORpi (uint8_t pin, uint8_t mode, VLogic_t logic)
	GPIO Rpi default constructor.
	~GPIORpi ()
	GPIO Rpi destructor.
Error_t	init ()
	Initializes the Raspberry Pi GPIO.
Error_t	deinit ()
	Deinitializes the Raspberry Pi GPIO.
VLevel_t	read ()
	Reads the Raspberry Pi GPIO voltage level.
Error_t	write (VLevel_t level)
	Writes the Raspberry Pi GPIO output voltage level.
Error_t	enable ()
	Enable the GPIO.
Error_t	disable ()
	Disable the GPIO.
Error_t	enableInt (void(*cback)(void), IntEvent_t mode)
	Enables the Raspberry Pi GPIO interrupt.
Error_t	disableInt ()
	Disable Raspberry Pi GPIO interrupt.
IntEvent_t	intEvent ()
	Gets the latest Raspberry Pi interrupt event.

Constructor & Destructor Documentation

GPIORpi() [1/2]

GPIORpi::GPIORpi

(

)

GPIO Rpi constructor.

This function sets the basics for a GPIO.

GPIORpi() [2/2]

GPIORpi::GPIORpi	(	uint8_t	pin,
		uint8_t	mode,
		VLogic_t	logic
	)

GPIO Rpi default constructor.

This function is setting the basics for a GPIO. It allows to set the pin number, mode of the pin and the logic level.

Parameters

[in]	pin	Number of the desired pin
[in]	mode	Defines the mode of the pin (INPUT, OUTPUT, etc.)
[in]	logic	Defines the logic level of the pin

~GPIORpi()

GPIORpi::~GPIORpi

(

)

GPIO Rpi destructor.

This function does cleanup for class object and its class members when the object is destroyed

Member Function Documentation

init()

Error_t GPIORpi::init ( )

virtual

Initializes the Raspberry Pi GPIO.

This function initializes the chosen pin.

Returns

GPIO error code

Return values

OK	if success
INTF_ERROR	if initialization error

Implements bgt60::GPIO.

deinit()

Error_t GPIORpi::deinit ( )

virtual

Deinitializes the Raspberry Pi GPIO.

This function deinitializes the chosen pin

Returns

GPIO error code

Return values

OK

always

Implements bgt60::GPIO.

read()

GPIORpi::VLevel_t GPIORpi::read ( )

inlinevirtual

Reads the Raspberry Pi GPIO voltage level.

This function reads the logic level of the chosen pin and returns the logic level value.

Returns

GPIO voltage level

Return values

GPIO_LOW	if voltage low
GPIO_HIGH	if voltage high

Implements bgt60::GPIO.

write()

Error_t GPIORpi::write ( VLevel_t  level )

inlinevirtual

Writes the Raspberry Pi GPIO output voltage level.

This functions sets the logic level of the chosen pin.

Parameters

[in]

level

Voltage level

Returns

GPIO error code

Return values

OK

always

Implements bgt60::GPIO.

enable()

Error_t GPIORpi::enable ( )

inlinevirtual

Enable the GPIO.

Enables the Raspberry Pi GPIO output according to the GPIO logic

• Low if negative
• High if positive

  Returns

  GPIO interrupt event

  Return values

  OK

  always

Implements bgt60::GPIO.

disable()

Error_t GPIORpi::disable ( )

inlinevirtual

Disable the GPIO.

Disables the Raspberry Pi GPIO output according to the GPIO logic

• Low if positive
• High if negative

  Returns

  GPIO error code

  Return values

  OK

  always

Implements bgt60::GPIO.

enableInt()

Error_t GPIORpi::enableInt ( void(*)(void)  cback, IntEvent_t  mode  )

virtual

Enables the Raspberry Pi GPIO interrupt.

This function enables the interrupt on chosen pin. Depending on the mode, it triggers the interrupt.

Parameters

[in]	*cback	Function pointer of the interrupt callback
[in]	mode	Event at which the interrupt will occur

Returns

GPIO error code

Return values

OK	if success
INTF_ERROR	if error

Implements bgt60::GPIO.

disableInt()

Error_t GPIORpi::disableInt ( )

inlinevirtual

Disable Raspberry Pi GPIO interrupt.

This function disables the interrupt on chosen pin.

Note

Not supported by low level framework.

Returns

GPIO error code

Return values

INTF	Error always

Implements bgt60::GPIO.

intEvent()

GPIORpi::IntEvent_t GPIORpi::intEvent ( )

inlinevirtual

Gets the latest Raspberry Pi interrupt event.

This function gets the latest interrupt event on the earlier configured GPIO pin.

Returns

GPIO interrupt event

Return values

INT_FALLING_EDGE	if falling edge event
INT_RISING_EDGE	if rising edge event

Implements bgt60::GPIO.