sys-intc.h File Reference

#include <io.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <types.h>
#include <common.h>
#include <log.h>

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Classes
struct	_irq_handler
	Structure for IRQ handler. More...

Typedefs
typedef struct _irq_handler	irq_handler_t
	Structure for IRQ handler.
typedef void()	interrupt_handler_t(void *)
	Type definition for interrupt handler function.

Functions
void	irq_install_handler (int irq, interrupt_handler_t handle_irq, void *data)
	Installs a handler for the specified IRQ.
void	irq_free_handler (int irq)
	Frees the resources associated with the specified IRQ handler.
int	irq_enable (int irq_no)
	Enables the specified IRQ.
int	irq_disable (int irq_no)
	Disables the specified IRQ.

Typedef Documentation

interrupt_handler_t

typedef void() interrupt_handler_t(void *)

Type definition for interrupt handler function.

Parameters

Pointer

to data associated with the interrupt handler

irq_handler_t

typedef struct _irq_handler irq_handler_t

Structure for IRQ handler.

Parameters

data	Pointer to data associated with the IRQ handler
func	Function pointer to the IRQ handler function

Function Documentation

irq_disable()

int irq_disable

(

int

irq_no

)

Disables the specified IRQ.

Parameters

irq_no

IRQ number to be disabled

Returns

0 on success, or an error code

irq_enable()

int irq_enable

(

int

irq_no

)

Enables the specified IRQ.

Parameters

irq_no

IRQ number to be enabled

Returns

0 on success, or an error code

irq_free_handler()

void irq_free_handler

(

int

irq

)

Frees the resources associated with the specified IRQ handler.

Parameters

irq	IRQ number

irq_install_handler()

void irq_install_handler	(	int	irq,
		interrupt_handler_t	handle_irq,
		void *	data
	)

Installs a handler for the specified IRQ.

Parameters

irq	IRQ number
handle_irq	Function pointer to the interrupt handler function
data	Pointer to data associated with the interrupt handler