sam0_eic.h File Reference

#include <zephyr/types.h>

Go to the source code of this file.

Typedefs
typedef void(*	sam0_eic_callback_t) (uint32_t pins, void *data)

Enumerations
enum	sam0_eic_trigger {   SAM0_EIC_RISING , SAM0_EIC_FALLING , SAM0_EIC_BOTH , SAM0_EIC_HIGH ,   SAM0_EIC_LOW }
	EIC trigger condition. More...

Functions
int	sam0_eic_acquire (int port, int pin, enum sam0_eic_trigger trigger, bool filter, sam0_eic_callback_t cb, void *data)
	Acquire an EIC interrupt for specific port and pin combination.
int	sam0_eic_release (int port, int pin)
	Release the EIC interrupt for a specific port and pin combination.
int	sam0_eic_enable_interrupt (int port, int pin)
	Enable the EIC interrupt for a specific port and pin combination.
int	sam0_eic_disable_interrupt (int port, int pin)
	Disable the EIC interrupt for a specific port and pin combination.
uint32_t	sam0_eic_interrupt_pending (int port)
	Test if there is an EIC interrupt pending for a port.

Typedef Documentation

sam0_eic_callback_t

typedef void(* sam0_eic_callback_t) (uint32_t pins, void *data)

Enumeration Type Documentation

sam0_eic_trigger

enum sam0_eic_trigger

EIC trigger condition.

Enumerator
SAM0_EIC_RISING
SAM0_EIC_FALLING
SAM0_EIC_BOTH
SAM0_EIC_HIGH
SAM0_EIC_LOW

Function Documentation

sam0_eic_acquire()

int sam0_eic_acquire	(	int	port,
		int	pin,
		enum sam0_eic_trigger	trigger,
		bool	filter,
		sam0_eic_callback_t	cb,
		void *	data )

Acquire an EIC interrupt for specific port and pin combination.

This acquires the EIC interrupt for a specific port and pin combination, or returns an error if the required line is not available. Only a single callback per port is supported and supplying a different one will change it for all lines on that port.

Parameters

port	port index (A=0, etc)
pin	pin in the port
trigger	trigger condition
filter	enable filter
cb	interrupt callback
data	parameter to the interrupt callback

sam0_eic_disable_interrupt()

int sam0_eic_disable_interrupt	(	int	port,
		int	pin )

Disable the EIC interrupt for a specific port and pin combination.

Parameters

port	port index (A=0, etc)
pin	pin in the port

sam0_eic_enable_interrupt()

int sam0_eic_enable_interrupt	(	int	port,
		int	pin )

Enable the EIC interrupt for a specific port and pin combination.

Parameters

port	port index (A=0, etc)
pin	pin in the port

sam0_eic_interrupt_pending()

uint32_t sam0_eic_interrupt_pending

(

int

port

)

Test if there is an EIC interrupt pending for a port.

Parameters

port	port index (A=0, etc)

sam0_eic_release()

int sam0_eic_release	(	int	port,
		int	pin )

Release the EIC interrupt for a specific port and pin combination.

Release the EIC configuration for a specific port and pin combination. No effect if that combination does not currently hold the associated EIC line.

Parameters

port	port index (A=0, etc)
pin	pin in the port