Linux kernel mirror (for testing)
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1/* Permission is hereby granted to copy, modify and redistribute this code
2 * in terms of the GNU Library General Public License, Version 2 or later,
3 * at your option.
4 */
5
6/* macros to translate to/from binary and binary-coded decimal (frequently
7 * found in RTC chips).
8 */
9
10#ifndef _BCD_H
11#define _BCD_H
12
13#include <linux/compiler.h>
14
15unsigned bcd2bin(unsigned char val) __attribute_const__;
16unsigned char bin2bcd(unsigned val) __attribute_const__;
17
18#define BCD2BIN(val) bcd2bin(val)
19#define BIN2BCD(val) bin2bcd(val)
20
21/* backwards compat */
22#define BCD_TO_BIN(val) ((val)=BCD2BIN(val))
23#define BIN_TO_BCD(val) ((val)=BIN2BCD(val))
24
25#endif /* _BCD_H */