#define SLAVE_ICW4_DEFAULT 0x01
#define PIC_ICW4_AEOI 2
-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);
+extern raw_spinlock_t i8259A_lock;
/* the PIC may need a careful delay on some platforms, hence specific calls */
static inline unsigned char inb_pic(unsigned int port)
extern struct irq_chip i8259A_chip;
-extern void mask_8259A(void);
-extern void unmask_8259A(void);
+struct legacy_pic {
+ int nr_legacy_irqs;
+ struct irq_chip *chip;
+ void (*mask_all)(void);
+ void (*restore_mask)(void);
+ void (*init)(int auto_eoi);
+ int (*irq_pending)(unsigned int irq);
+ void (*make_irq)(unsigned int irq);
+};
+
+extern struct legacy_pic *legacy_pic;
+extern struct legacy_pic null_legacy_pic;
#endif /* _ASM_X86_I8259_H */