linux/include/asm-x86/i8259.h

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#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__ */