GPIO helper functions for linux/omap. More...

#include "std.h"

Include dependency graph for gpio_arch.h:

This graph shows which files directly or indirectly include this file:

Typedefs
typedef uint32_t	gpio_port_t

Functions
void	gpio_setup_output (uint32_t port, uint16_t gpios)
	Setup one or more pins of the given GPIO port as outputs. More...

void	gpio_setup_input (uint32_t port, uint16_t gpios)
	Setup one or more pins of the given GPIO port as inputs. More...

void	gpio_set (uint32_t port, uint16_t pin)
	Set a gpio output to high level. More...

void	gpio_clear (uint32_t port, uint16_t pin)
	Clear a gpio output to low level. More...

uint16_t	gpio_get (uint32_t gpioport, uint16_t gpios)
	Read a gpio value. More...

Detailed Description

GPIO helper functions for linux/omap.

Todo:: implement gpio_set|clear

Definition in file gpio_arch.h.

Typedef Documentation

◆ gpio_port_t

typedef uint32_t gpio_port_t

Definition at line 34 of file gpio_arch.h.

Function Documentation

◆ gpio_clear()

void gpio_clear	(	uint32_t	port,
		uint16_t	pin
	)

Clear a gpio output to low level.

Definition at line 37 of file gpio_arch.c.

References GPIO_WRITE, gpiofp, gpio_data::pin, and gpio_data::value.

◆ gpio_get()

uint16_t gpio_get	(	uint32_t	gpioport,
		uint16_t	gpios
	)

Read a gpio value.

Definition at line 39 of file gpio_arch.c.

References GPIO_READ, gpiofp, gpio_data::pin, and gpio_data::value.

◆ gpio_set()

void gpio_set	(	uint32_t	port,
		uint16_t	pin
	)

Set a gpio output to high level.

Definition at line 35 of file gpio_arch.c.

References GPIO_WRITE, gpiofp, gpio_data::pin, and gpio_data::value.

◆ gpio_setup_input()

void gpio_setup_input	(	uint32_t	port,
		uint16_t	gpios
	)

Setup one or more pins of the given GPIO port as inputs.

Parameters

[in]	port
[in]	gpios	If multiple pins are to be changed, use logical OR '\|' to separate them.

Definition at line 33 of file gpio_arch.c.

◆ gpio_setup_output()

void gpio_setup_output	(	uint32_t	port,
		uint16_t	gpios
	)

Setup one or more pins of the given GPIO port as outputs.