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1965aae3c9
Change header guards named "ASM_X86__*" to "_ASM_X86_*" since: a. the double underscore is ugly and pointless. b. no leading underscore violates namespace constraints. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
19 lines
348 B
C
19 lines
348 B
C
#ifndef _ASM_X86_I8253_H
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#define _ASM_X86_I8253_H
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/* i8253A PIT registers */
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#define PIT_MODE 0x43
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#define PIT_CH0 0x40
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#define PIT_CH2 0x42
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extern spinlock_t i8253_lock;
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extern struct clock_event_device *global_clock_event;
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extern void setup_pit_timer(void);
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#define inb_pit inb_p
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#define outb_pit outb_p
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#endif /* _ASM_X86_I8253_H */
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