i8259.c File Reference

#include <linux/linkage.h>
#include <linux/errno.h>
#include <linux/signal.h>
#include <linux/sched.h>
#include <linux/ioport.h>
#include <linux/interrupt.h>
#include <linux/timex.h>
#include <linux/random.h>
#include <linux/init.h>
#include <linux/kernel_stat.h>
#include <linux/syscore_ops.h>
#include <linux/bitops.h>
#include <linux/acpi.h>
#include <linux/io.h>
#include <linux/delay.h>
#include <linux/atomic.h>
#include <asm/timer.h>
#include <asm/hw_irq.h>
#include <asm/pgtable.h>
#include <asm/desc.h>
#include <asm/apic.h>
#include <asm/i8259.h>

Go to the source code of this file.

Functions
	DEFINE_RAW_SPINLOCK (i8259A_lock)
	device_initcall (i8259A_init_ops)

Variables
unsigned int	cached_irq_mask = 0xffff
unsigned long	io_apic_irqs
struct irq_chip	i8259A_chip
struct legacy_pic	null_legacy_pic
struct legacy_pic	default_legacy_pic
struct legacy_pic *	legacy_pic = &default_legacy_pic

Function Documentation

DEFINE_RAW_SPINLOCK

(

i8259A_lock

)

device_initcall

(

i8259A_init_ops

)

Variable Documentation

unsigned int cached_irq_mask = 0xffff

Definition at line 43 of file i8259.c.

struct legacy_pic default_legacy_pic

Initial value:

= {
    .nr_legacy_irqs = NR_IRQS_LEGACY,
    .chip  = &i8259A_chip,
    .mask = mask_8259A_irq,
    .unmask = unmask_8259A_irq,
    .mask_all = mask_8259A,
    .restore_mask = unmask_8259A,
    .init = init_8259A,
    .irq_pending = i8259A_irq_pending,
    .make_irq = make_8259A_irq,
}

Definition at line 379 of file i8259.c.

struct irq_chip i8259A_chip

Initial value:

= {
    .name       = "XT-PIC",
    .irq_mask   = disable_8259A_irq,
    .irq_disable    = disable_8259A_irq,
    .irq_unmask = enable_8259A_irq,
    .irq_mask_ack   = mask_and_ack_8259A,
}

Definition at line 222 of file i8259.c.

unsigned long io_apic_irqs

Definition at line 54 of file i8259.c.

struct legacy_pic* legacy_pic = &default_legacy_pic

Definition at line 391 of file i8259.c.

struct legacy_pic null_legacy_pic

Initial value:

= {
    .nr_legacy_irqs = 0,
    .chip = &dummy_irq_chip,
    .mask = legacy_pic_uint_noop,
    .unmask = legacy_pic_uint_noop,
    .mask_all = legacy_pic_noop,
    .restore_mask = legacy_pic_noop,
    .init = legacy_pic_int_noop,
    .irq_pending = legacy_pic_irq_pending_noop,
    .make_irq = legacy_pic_uint_noop,
}

Definition at line 367 of file i8259.c.