gpio.h File Reference

GPIO Pin abstraction implementation for Asgard. More...

#include <c/common/types.h>

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Classes
struct	gpio_t
	GPIO handle type. More...

Macros
#define	LOW_ACTIVE   true
#define	HIGH_ACTIVE   false

Functions
bool	yggdrasil_GPIO_Init (gpio_t gpio)
	GPIO initialization. More...
C_LINKAGE bool	yggdrasil_GPIO_Deinit (gpio_t gpio)
	GPIO deinitialization. More...
C_LINKAGE bool	yggdrasil_GPIO_MakeOutput (gpio_t gpio)
	Turn pin into an output. More...
C_LINKAGE bool	yggdrasil_GPIO_MakeInput (gpio_t gpio)
	Turn pin into an input. More...
C_LINKAGE bool	yggdrasil_GPIO_Get (gpio_t gpio)
	Get GPIO state. More...
C_LINKAGE void	yggdrasil_GPIO_Set (gpio_t gpio, bool state)
	Set GPIO state. More...
C_LINKAGE void	yggdrasil_GPIO_Toggle (gpio_t gpio)
	Toggle GPIO. More...

Detailed Description

GPIO Pin abstraction implementation for Asgard.

Author

Fabian Weber, Nikolaij Saegesser

Macro Definition Documentation

HIGH_ACTIVE

#define HIGH_ACTIVE   false

LOW_ACTIVE

#define LOW_ACTIVE   true

Function Documentation

yggdrasil_GPIO_Deinit()

C_LINKAGE bool yggdrasil_GPIO_Deinit

(

gpio_t

gpio

)

GPIO deinitialization.

Parameters

gpio	GPIO handle

Returns

Success

yggdrasil_GPIO_Get()

C_LINKAGE bool yggdrasil_GPIO_Get

(

gpio_t

gpio

)

Get GPIO state.

Parameters

gpio	GPIO handle

Returns

GPIO state

yggdrasil_GPIO_Init()

bool yggdrasil_GPIO_Init

(

gpio_t

gpio

)

GPIO initialization.

Parameters

gpio	GPIO handle

Returns

Success

yggdrasil_GPIO_MakeInput()

C_LINKAGE bool yggdrasil_GPIO_MakeInput

(

gpio_t

gpio

)

Turn pin into an input.

Parameters

gpio	GPIO handle

Returns

Success

yggdrasil_GPIO_MakeOutput()

C_LINKAGE bool yggdrasil_GPIO_MakeOutput

(

gpio_t

gpio

)

Turn pin into an output.

Parameters

gpio	GPIO handle

Returns

Success

yggdrasil_GPIO_Set()

C_LINKAGE void yggdrasil_GPIO_Set	(	gpio_t	gpio,
		bool	state
	)

Set GPIO state.

Parameters

gpio	GPIO handle
state	GPIO state

yggdrasil_GPIO_Toggle()

C_LINKAGE void yggdrasil_GPIO_Toggle

(

gpio_t

gpio

)

Toggle GPIO.

Parameters

gpio	GPIO handle