GPIO: General-Purpose Input/Output Driver

Overview

Modules
	FGPIO Driver
	GPIO Driver

Data Structures
struct	gpio_pin_config_t
	The GPIO pin configuration structure. More...
struct	gpio_version_info_t
	GPIO version information. More...

Enumerations
enum	gpio_pin_direction_t {   kGPIO_DigitalInput = 0U,   kGPIO_DigitalOutput = 1U }
	GPIO direction definition. More...
enum	gpio_interrupt_config_t {   kGPIO_InterruptStatusFlagDisabled = 0x0U,   kGPIO_DMARisingEdge = 0x1U,   kGPIO_DMAFallingEdge = 0x2U,   kGPIO_DMAEitherEdge = 0x3U,   kGPIO_FlagRisingEdge = 0x05U,   kGPIO_FlagFallingEdge = 0x06U,   kGPIO_FlagEitherEdge = 0x07U,   kGPIO_InterruptLogicZero = 0x8U,   kGPIO_InterruptRisingEdge = 0x9U,   kGPIO_InterruptFallingEdge = 0xAU,   kGPIO_InterruptEitherEdge = 0xBU,   kGPIO_InterruptLogicOne = 0xCU,   kGPIO_ActiveHighTriggerOutputEnable = 0xDU,   kGPIO_ActiveLowTriggerOutputEnable = 0xEU }
	Configures the interrupt generation condition. More...
enum	gpio_interrupt_selection_t {   kGPIO_InterruptOutput0 = 0x0U,   kGPIO_InterruptOutput1 = 0x1U }
	Configures the selection of interrupt/DMA request/trigger output. More...
enum	gpio_pin_interrupt_control_t {   kGPIO_PinControlNonSecure = 0x01U,   kGPIO_InterruptControlNonSecure = 0x02U,   kGPIO_PinControlNonPrivilege = 0x04U,   kGPIO_InterruptControlNonPrivilege = 0x08U }
	GPIO pin and interrupt control. More...

Driver version
#define	FSL_GPIO_DRIVER_VERSION   (MAKE_VERSION(2, 7, 1))
	GPIO driver version. More...

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Data Structure Documentation

struct gpio_pin_config_t

Each pin can only be configured as either an output pin or an input pin at a time. If configured as an input pin, leave the outputConfig unused. Note that in some use cases, the corresponding port property should be configured in advance with the PORT_SetPinConfig().

Data Fields
gpio_pin_direction_t	pinDirection
	GPIO direction, input or output.
uint8_t	outputLogic
	Set a default output logic, which has no use in input.

struct gpio_version_info_t

Data Fields
uint16_t	feature
	Feature Specification Number. More...
uint8_t	minor
	Minor Version Number. More...
uint8_t	major
	Major Version Number. More...

Field Documentation

uint16_t gpio_version_info_t::feature

uint8_t gpio_version_info_t::minor

uint8_t gpio_version_info_t::major

Macro Definition Documentation

#define FSL_GPIO_DRIVER_VERSION   (MAKE_VERSION(2, 7, 1))

Enumeration Type Documentation

enum gpio_pin_direction_t

Enumerator
kGPIO_DigitalInput	Set current pin as digital input.
kGPIO_DigitalOutput	Set current pin as digital output.

enum gpio_interrupt_config_t

Enumerator
kGPIO_InterruptStatusFlagDisabled	Interrupt status flag is disabled.
kGPIO_DMARisingEdge	ISF flag and DMA request on rising edge.
kGPIO_DMAFallingEdge	ISF flag and DMA request on falling edge.
kGPIO_DMAEitherEdge	ISF flag and DMA request on either edge.
kGPIO_FlagRisingEdge	Flag sets on rising edge.
kGPIO_FlagFallingEdge	Flag sets on falling edge.
kGPIO_FlagEitherEdge	Flag sets on either edge.
kGPIO_InterruptLogicZero	Interrupt when logic zero.
kGPIO_InterruptRisingEdge	Interrupt on rising edge.
kGPIO_InterruptFallingEdge	Interrupt on falling edge.
kGPIO_InterruptEitherEdge	Interrupt on either edge.
kGPIO_InterruptLogicOne	Interrupt when logic one.
kGPIO_ActiveHighTriggerOutputEnable	Enable active high-trigger output.
kGPIO_ActiveLowTriggerOutputEnable	Enable active low-trigger output.

enum gpio_interrupt_selection_t

Enumerator
kGPIO_InterruptOutput0	Interrupt/DMA request/trigger output 0.
kGPIO_InterruptOutput1	Interrupt/DMA request/trigger output 1.

enum gpio_pin_interrupt_control_t

Enumerator
kGPIO_PinControlNonSecure	Pin Control Non-Secure.
kGPIO_InterruptControlNonSecure	Interrupt Control Non-Secure.
kGPIO_PinControlNonPrivilege	Pin Control Non-Privilege.
kGPIO_InterruptControlNonPrivilege	Interrupt Control Non-Privilege.