1#ifndef __ASM_I8259_H__ 2#define __ASM_I8259_H__ 3 4extern unsigned int cached_irq_mask; 5 6#define __byte(x,y) (((unsigned char *) &(y))[x]) 7#define cached_master_mask (__byte(0, cached_irq_mask)) 8#define cached_slave_mask (__byte(1, cached_irq_mask)) 9 10extern spinlock_t i8259A_lock; 11 12extern void init_8259A(int auto_eoi); 13extern void enable_8259A_irq(unsigned int irq); 14extern void disable_8259A_irq(unsigned int irq); 15extern unsigned int startup_8259A_irq(unsigned int irq); 16 17#endif /* __ASM_I8259_H__ */ 18