gpio.h File Reference

Introduction

File provides functional level API prototypes for GPIO interface.

Go to the source code of this file.

GPIO Interrupt mask
#define	GPIO_INTR_MASK_NO_EDGE   (0x01U)
#define	GPIO_INTR_MASK_RISE_EDGE   (0x02U)
#define	GPIO_INTR_MASK_FALL_EDGE   (0x04U)
#define	GPIO_INTR_MASK_BOTH_EDGE   (0x08U)
typedef uint32_t	gpioIntrMask_t
	Enumerates the possible GPIO interrupt generation events. More...

GPIO Direction
#define	GPIO_DIRECTION_INPUT   (GPIO_OE_OUTPUTEN_N_DISABLED)
#define	GPIO_DIRECTION_OUTPUT   (GPIO_OE_OUTPUTEN_N_ENABLED)
typedef uint32_t	gpioDirection_t
	Enumerates the direction of GPIO pin. More...

Data Structures
struct	gpioContext_t
	Structure holding the GPIO context. More...

Macros
#define	GPIO_PIN_LOW   (0x0U)
	GPIO pin is at logic low. More...
#define	GPIO_PIN_HIGH   (0x1U)
	GPIO pin is at logic high. More...
#define	GPIO_OE_OUTPUTEN_N_ENABLED   (0U)
	Macro to configure GPIO pin as output. More...
#define	GPIO_OE_OUTPUTEN_N_DISABLED   (1U)
	Macro to configure GPIO pin as input. More...
#define	GPIO_PIN_MASK_ALL   0xFF
	Mask for all pins of single gpio port. More...

Functions
void	GPIOSetDirMode_v0 (uint32_t baseAddr, uint32_t pinNumber, uint32_t pinDirection)
	This API configures the direction of a specified GPIO pin as being either input or output. More...
void	GPIOPinWrite_v0 (uint32_t baseAddr, uint32_t pinNumber, uint32_t pinValue)
	This API drives an output GPIO pin to a logic HIGH or a logic LOW state. More...
uint32_t	GPIOPinRead_v0 (uint32_t baseAddr, uint32_t pinNumber)
	This API determines the logic level(value) on a specified GPIO pin. More...
uint32_t	GPIOPinOutValueRead_v0 (uint32_t baseAddr, uint32_t pinNumber)
	This API determines the output logic level(value) on a specified GPIO pin. More...
void	GPIOSetIntrType_v0 (uint32_t baseAddr, uint32_t pinNumber, uint32_t eventType)
	This API configures the event type for a specified input GPIO pin. Whenever the selected event occurs on that GPIO pin and if interrupt generation is enabled for that pin, the GPIO module will send an interrupt to CPU. More...
void	GPIOIntrEnable_v0 (uint32_t baseAddr, uint32_t pinNumber, uint32_t eventType)
	This API enables the configured interrupt event on a specified input GPIO pin to trigger an interrupt request. More...
void	GPIOIntrDisable_v0 (uint32_t baseAddr, uint32_t pinNumber)
	This API disables interrupt generation due to the detection of any event on a specified input GPIO pin. More...
uint32_t	GPIOIntrStatus_v0 (uint32_t baseAddr, uint32_t pinNumber)
	This API determines the enabled interrupt status of a specified pin. More...
void	GPIOIntrStatusMask_v0 (uint32_t baseAddr, uint32_t bankIdx, uint32_t *intrStatusMask)
	This API determines the enabled interrupt status of a specified pin. More...
void	GPIOIntrClear_v0 (uint32_t baseAddr, uint32_t pinNumber)
	This API clears the enabled interrupt status of a specified GPIO pin. More...
void	GPIOIntrClearMask_v0 (uint32_t baseAddr, uint32_t bankIdx, uint32_t pinMask)
	This API clears the enabled interrupt status of specified GPIO pins. More...