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1da177e4 LT |
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 | ||
d3de851a DB |
13 | #include <linux/compiler.h> |
14 | ||
15 | unsigned bcd2bin(unsigned char val) __attribute_const__; | |
16 | unsigned char bin2bcd(unsigned val) __attribute_const__; | |
17 | ||
18 | #define BCD2BIN(val) bcd2bin(val) | |
19 | #define BIN2BCD(val) bin2bcd(val) | |
1da177e4 LT |
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 */ |