aboutsummaryrefslogblamecommitdiffstats
path: root/include/asm-x86/i8259.h
blob: 29d8f9a6b3fcc60a85528ce03b2edd5990129e99 (plain) (tree)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
















                                                             
#ifndef __ASM_I8259_H__
#define __ASM_I8259_H__

extern unsigned int cached_irq_mask;

#define __byte(x,y) 		(((unsigned char *) &(y))[x])
#define cached_master_mask	(__byte(0, cached_irq_mask))
#define cached_slave_mask	(__byte(1, cached_irq_mask))

extern spinlock_t i8259A_lock;

extern void init_8259A(int auto_eoi);
extern void enable_8259A_irq(unsigned int irq);
extern void disable_8259A_irq(unsigned int irq);
extern unsigned int startup_8259A_irq(unsigned int irq);

#endif	/* __ASM_I8259_H__ */