diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/bcd.h | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/include/linux/bcd.h b/include/linux/bcd.h index c545308125b0..7ac518e3c152 100644 --- a/include/linux/bcd.h +++ b/include/linux/bcd.h @@ -10,8 +10,13 @@ #ifndef _BCD_H #define _BCD_H -#define BCD2BIN(val) (((val) & 0x0f) + ((val)>>4)*10) -#define BIN2BCD(val) ((((val)/10)<<4) + (val)%10) +#include <linux/compiler.h> + +unsigned bcd2bin(unsigned char val) __attribute_const__; +unsigned char bin2bcd(unsigned val) __attribute_const__; + +#define BCD2BIN(val) bcd2bin(val) +#define BIN2BCD(val) bin2bcd(val) /* backwards compat */ #define BCD_TO_BIN(val) ((val)=BCD2BIN(val)) |