gpio.h File Reference

GPIO Pin abstraction implementation for Midgard. More...

#include <c/common/types.h>
#include <stm32f7xx_hal.h>

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Classes
struct	gpio_t
	GPIO handle type. More...

Macros
#define	LOW_ACTIVE   true
#define	HIGH_ACTIVE   false

Typedefs
typedef GPIO_TypeDef *	port_t
	GPIO port type. More...
typedef u8	pin_t
	GPIO pin type. More...

Functions
C_LINKAGE 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_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...
C_LINKAGE u16	yggdrasil_GPIO_GetMultiple (port_t port, u8 from, u8 to)
	Get multiple GPIO states. More...
C_LINKAGE void	yggdrasil_GPIO_SetMultiple (port_t port, u8 from, u8 to, u16 value)
	Set multiple GPIO states. More...

Detailed Description

GPIO Pin abstraction implementation for Midgard.

Author

Fabian Weber, Nikolaij Saegesser

Macro Definition Documentation

HIGH_ACTIVE

#define HIGH_ACTIVE   false

LOW_ACTIVE

#define LOW_ACTIVE   true

Typedef Documentation

pin_t

typedef u8 pin_t

GPIO pin type.

port_t

typedef GPIO_TypeDef* port_t

GPIO port type.

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_GetMultiple()

C_LINKAGE u16 yggdrasil_GPIO_GetMultiple	(	port_t	port,
		u8	from,
		u8	to
	)

Get multiple GPIO states.

Parameters

port	GPIO port
from	Start bit number
to	End bit number

Returns

GPIO state

yggdrasil_GPIO_Init()

C_LINKAGE bool yggdrasil_GPIO_Init

(

gpio_t

gpio

)

GPIO initialization.

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_SetMultiple()

C_LINKAGE void yggdrasil_GPIO_SetMultiple	(	port_t	port,
		u8	from,
		u8	to,
		u16	value
	)

Set multiple GPIO states.

Parameters

port	GPIO port
from	Start bit number
to	End bit number
value	Value to set

Returns

GPIO state

yggdrasil_GPIO_Toggle()

C_LINKAGE void yggdrasil_GPIO_Toggle

(

gpio_t

gpio

)

Toggle GPIO.

Parameters

gpio	GPIO handle