interrupt.c File Reference

Functions which manage the Interrupt Service Routines (ISRs). More...

Classes
struct	irq_struct_t
	Shared interrupt handlers, stored into a double-linked list. More...

Macros
#define	__DEBUG_HEADER__   "[IRQ ]"
	Change header.
#define	__DEBUG_LEVEL__   LOGLEVEL_NOTICE
	Set log level.

Typedefs
typedef struct irq_struct_t	irq_struct_t
	Shared interrupt handlers, stored into a double-linked list.

Functions
static irq_struct_t *	__irq_struct_alloc (void)
	Creates a new irq structure. More...
static void	__irq_struct_dealloc (irq_struct_t *irq_struct)
	Destroys an irq struct. More...
void	irq_init (void)
	For each interrupt irq_init sets a default handler which prints the rose IRQ line and stops kernel execution.
int	irq_install_handler (unsigned i, interrupt_handler_t handler, char *description)
	Installs an ISR to handle an interrupt. More...
int	irq_uninstall_handler (unsigned i, interrupt_handler_t handler)
	Uninstall an IRQ handler. More...
void	irq_handler (pt_regs *f)
	Method called by CPU to handle interrupts. More...

Variables
static list_head	shared_interrupt_handlers [IRQ_NUM]
	For each IRQ, a chain of handlers.
static kmem_cache_t *	irq_cache
	Cache where we will store the data regarding an irq service.

Detailed Description

Functions which manage the Interrupt Service Routines (ISRs).

Copyright

(c) 2014-2024 This file is distributed under the MIT License. See LICENSE.md for details.

Function Documentation

__irq_struct_alloc()

static irq_struct_t* __irq_struct_alloc ( void  )

inlinestatic

Creates a new irq structure.

Returns

a pointer to the newly created irq structure.

__irq_struct_dealloc()

static void __irq_struct_dealloc ( irq_struct_t *  irq_struct )

inlinestatic

Destroys an irq struct.

Parameters

irq_struct

the structure we need to destroy.