gpio_ardrone.c File Reference

ardrone GPIO driver More...

#include <fcntl.h>
#include <errno.h>
#include <sys/ioctl.h>
#include "mcu_periph/gpio.h"

Include dependency graph for gpio_ardrone.c:

Go to the source code of this file.

Data Structures
struct	gpio_data
struct	gpio_direction

Macros
#define	GPIO_MAGIC   'p'
#define	GPIO_DIRECTION   _IOW(GPIO_MAGIC, 0, struct gpio_direction)
#define	GPIO_READ   _IOWR(GPIO_MAGIC, 1, struct gpio_data)
#define	GPIO_WRITE   _IOW(GPIO_MAGIC, 2, struct gpio_data)

Enumerations
enum	gpio_mode { GPIO_INPUT = 0, GPIO_OUTPUT_LOW, GPIO_OUTPUT_HIGH }

Functions
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...
void	gpio_setup_input (uint32_t port, uint16_t pin)
	Setup one or more pins of the given GPIO port as inputs. More...
void	gpio_setup_output (uint32_t port, uint16_t pin)
	Setup one or more pins of the given GPIO port as outputs. More...
uint16_t	gpio_get (uint32_t port, uint16_t pin)
	Read a gpio value. More...

Variables
int	gpiofp = 0

Detailed Description

ardrone GPIO driver

Definition in file gpio_ardrone.c.

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Data Structure Documentation

struct gpio_data

Definition at line 37 of file gpio_ardrone.c.

Data Fields
int	pin
int	value

struct gpio_direction

Definition at line 48 of file gpio_ardrone.c.

Data Fields
enum gpio_mode	mode
int	pin

Macro Definition Documentation

#define GPIO_DIRECTION   _IOW(GPIO_MAGIC, 0, struct gpio_direction)

Definition at line 32 of file gpio_ardrone.c.

Referenced by gpio_setup_input().

#define GPIO_MAGIC   'p'

Definition at line 31 of file gpio_ardrone.c.

#define GPIO_READ   _IOWR(GPIO_MAGIC, 1, struct gpio_data)

Definition at line 33 of file gpio_ardrone.c.

Referenced by gpio_get().

#define GPIO_WRITE   _IOW(GPIO_MAGIC, 2, struct gpio_data)

Definition at line 34 of file gpio_ardrone.c.

Referenced by gpio_clear(), and gpio_set().

Enumeration Type Documentation

enum gpio_mode

Enumerator
GPIO_INPUT	Pin configured for input.
GPIO_OUTPUT_LOW	Pin configured for output with low level.
GPIO_OUTPUT_HIGH	Pin configured for output with high level.

Definition at line 42 of file gpio_ardrone.c.

Function Documentation

void gpio_clear	(	uint32_t	port,
		uint16_t	pin
	)

Clear a gpio output to low level.

Definition at line 70 of file gpio_ardrone.c.

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

uint16_t gpio_get	(	uint32_t	port,
		uint16_t	pin
	)

Read a gpio value.

Definition at line 120 of file gpio_ardrone.c.

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

void gpio_set	(	uint32_t	port,
		uint16_t	pin
	)

Set a gpio output to high level.

Definition at line 54 of file gpio_ardrone.c.

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

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 86 of file gpio_ardrone.c.

References GPIO_DIRECTION, GPIO_INPUT, gpiofp, gpio_direction::mode, and gpio_direction::pin.

void gpio_setup_output	(	uint32_t	port,
		uint16_t	gpios
	)

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

Parameters

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

Definition at line 102 of file gpio_ardrone.c.

Variable Documentation

int gpiofp = 0

Definition at line 35 of file gpio_ardrone.c.

Referenced by gpio_clear(), gpio_get(), gpio_set(), and gpio_setup_input().