| #ifndef ASM_X86__I8253_H | |
| #define ASM_X86__I8253_H | |
| /* i8253A PIT registers */ | |
| #define PIT_MODE 0x43 | |
| #define PIT_CH0 0x40 | |
| #define PIT_CH2 0x42 | |
| extern spinlock_t i8253_lock; | |
| extern struct clock_event_device *global_clock_event; | |
| extern void setup_pit_timer(void); | |
| #define inb_pit inb_p | |
| #define outb_pit outb_p | |
| #endif /* ASM_X86__I8253_H */ |