gpio-ext.h File Reference

Abstract IO extender driver. More...

#include <stdint.h>
#include <stddef.h>
#include <stdbool.h>
#include <lib/assert.h>
#include <dev/gpio.h>
#include <core/atomic.h>
#include <app_util_platform.h>
#include <dev/irq.h>

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Data Structures
struct	gpio_ext_state_t
struct	gpio_ext_init_pin_t
struct	gpio_ext_api_t
struct	gpio_ext_t

Typedefs
typedef void(*	gpio_ext_init_t) (const struct gpio_ext_t *GpioExt)
	Virtual function initializes pins of an gpio expander to default values based on DRIVER_PORT_EXT_INIT_TABLE.
typedef uint16_t(*	gpio_ext_inport_t) (const struct gpio_ext_t *GpioExt)
	Virtual function reads from gpio expander port.
typedef void(*	gpio_ext_outport_t) (const struct gpio_ext_t *GpioExt, uint16_t Value)
	Virtual function writes to gpio expander port / pin direction register / pull select register / pull enable register / interrupt enable register / latch enable register.
typedef void(*	gpio_ext_setdrive_t) (const struct gpio_ext_t *GpioExt, uint8_t Values[])
	Virtual function sets drive force to gpio expander pins.

Enumerations

Functions
Functions called from application programs
void	GpioExtInit (const struct gpio_ext_t *GpioExt)
	Initialize IO expander driver and chip. More...
static void	GpioExtPortWrite (const struct gpio_ext_t *GpioExt, uint16_t Value, uint16_t Mask)
	Write 16-bits data to the GPIO port. More...
static void	GpioExtPortSet (const struct gpio_ext_t *GpioExt, uint16_t Mask)
	Set bits by mask in the GPIO port. More...
static void	GpioExtPortClear (const struct gpio_ext_t *GpioExt, uint16_t Mask)
	Clear bits by mask in the GPIO port. More...
static void	GpioExtPortToggle (const struct gpio_ext_t *GpioExt, uint16_t Mask)
	Invert bits by mask in the GPIO port. More...
static void	GpioExtPinWrite (const struct gpio_ext_t *GpioExt, uint16_t Pin, uint16_t Value)
	Set/clear 1 pin in the GPIO port. More...
static void	GpioExtPinSet (const struct gpio_ext_t *GpioExt, uint16_t Pin)
	Set 1 pin in the GPIO port. More...
static void	GpioExtPinClear (const struct gpio_ext_t *GpioExt, uint16_t Pin)
	Clear 1 pin in the GPIO port. More...
static void	GpioExtPinToggle (const struct gpio_ext_t *GpioExt, uint16_t Pin)
	Invert 1 pin in the GPIO port. More...
static uint16_t	GpioExtPortRead (const struct gpio_ext_t *GpioExt)
	Read all the pins from the GPIO port. More...
static uint8_t	GpioExtPinRead (const struct gpio_ext_t *GpioExt, uint16_t Pin)
	Read a pin value from the GPIO port. More...
void	GpioExtPortSetup (const struct gpio_ext_t *GpioExt, uint16_t Direction, uint16_t PullSelect, uint16_t PullEnable, uint16_t Mask)
	Set IO expander ports to input or output. More...
static uint16_t	GpioExtInterruptsClear (const struct gpio_ext_t *GpioExt, uint16_t Mask)
static uint16_t	GpioExtInterruptsRead (const struct gpio_ext_t *GpioExt)
static void	GpioExtInterruptsEnable (const struct gpio_ext_t *GpioExt, uint16_t Mask)
static void	GpioExtInterruptsDisable (const struct gpio_ext_t *GpioExt, uint16_t Mask)
static void	GpioExtSetDrive (const struct gpio_ext_t *GpioExt, uint8_t Values[])
static void	GpioExtSetLatch (const struct gpio_ext_t *GpioExt, uint16_t Mask)
static uint8_t	GpioExtCheckStatus (const struct gpio_ext_t *GpioExt)
	Check status of GpioExt operations and reset status to GPIO_EXT_STATUS_OK. More...

Detailed Description

Abstract IO extender driver.

Author

SE, Jetro AS

Definition in file gpio-ext.h.