interrupt.h File Reference

defines interrupt functions at long mode More...

#include <types.h>
#include <utils.h>

Classes
struct	interrupt_frame_t
struct	interrupt_frame_ext_t
union	interrupt_errorcode_pagefault_u
	bit fileds for page fault error no More...

Macros
#define	___CPU_INTERRUPT_H   0
#define	interrupt_errcode_t   uint64_t
	interrupt error code type
#define	INTERRUPT_IRQ_BASE   0x20
#define	INTERRUPT_VECTOR_SPURIOUS   0xFF

Typedefs
typedef struct interrupt_frame_t	interrupt_frame_t
	struct short hand
typedef struct interrupt_frame_ext_t	interrupt_frame_ext_t
	struct short hand
typedef int8_t(*	interrupt_irq) (interrupt_frame_ext_t *frame)
	irq method signature
typedef union interrupt_errorcode_pagefault_u	interrupt_errorcode_pagefault_t
	union short hand for interrupt_errorcode_pagefault_u

Functions
int8_t	interrupt_init (void)
	interrupt table builder functions
int8_t	interrupt_ist_redirect_main_interrupts (uint8_t ist)
	interrupt redirector for main interrupts
int8_t	interrupt_ist_redirect_interrupt (uint8_t vec, uint8_t ist)
	interrupt redirector for main interrupts
int8_t	interrupt_irq_set_handler (uint8_t irqnum, interrupt_irq irq)
	registers irq for irq number, for an irq there can be more irq handlers, loops with return of interrupt_irq
int8_t	interrupt_irq_remove_handler (uint8_t irqnum, interrupt_irq irq)
	remove irq for irq number
uint8_t	interrupt_get_next_empty_interrupt (void)
	finds not used interrupt for registering
void	interrupt_generic_handler (interrupt_frame_ext_t *frame)

Detailed Description

defines interrupt functions at long mode

This work is licensed under TURNSTONE OS Public License. Please read and understand latest version of Licence.

Macro Definition Documentation

___CPU_INTERRUPT_H

#define ___CPU_INTERRUPT_H   0

prevent duplicate header error macro

INTERRUPT_IRQ_BASE

#define INTERRUPT_IRQ_BASE   0x20

the base interrupt number of irqs

INTERRUPT_VECTOR_SPURIOUS

#define INTERRUPT_VECTOR_SPURIOUS   0xFF

apci spurious interrupt number

Typedef Documentation

interrupt_irq

typedef int8_t(* interrupt_irq) (interrupt_frame_ext_t *frame)

irq method signature

Parameters

[in]	frame	interrupt frame
[in]	intnum	interrupt/irq number

Returns

0 if irq handled success fully.

Function Documentation

interrupt_get_next_empty_interrupt()

uint8_t interrupt_get_next_empty_interrupt

(

void

)

finds not used interrupt for registering

Returns

interrupt number

interrupt_init()

int8_t interrupt_init

(

void

)

interrupt table builder functions

builds interrupt table at idtr look for descriptor_idt

interrupt_irq_remove_handler()

int8_t interrupt_irq_remove_handler	(	uint8_t	irqnum,
		interrupt_irq	irq )

remove irq for irq number

Parameters

[in]	irqnum	irq number to handle
[in]	irq	the irq handler

Returns

0 if succeed

interrupt_irq_set_handler()

int8_t interrupt_irq_set_handler	(	uint8_t	irqnum,
		interrupt_irq	irq )

registers irq for irq number, for an irq there can be more irq handlers, loops with return of interrupt_irq

Parameters

[in]	irqnum	irq number to handle
[in]	irq	the irq handler

Returns

0 if succeed

interrupt_ist_redirect_interrupt()

int8_t interrupt_ist_redirect_interrupt	(	uint8_t	vec,
		uint8_t	ist )

interrupt redirector for main interrupts

Parameters

[in]

ist

interrupt stack table index

Returns

0 if succeed

interrupt_ist_redirect_main_interrupts()

int8_t interrupt_ist_redirect_main_interrupts

(

uint8_t

ist

)

interrupt redirector for main interrupts

Parameters

[in]

ist

interrupt stack table index

Returns

0 if succeed