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 /* inline functions to translate to/from binary and binary-coded decimal
7 * (frequently found in RTC chips).
8 */
9
10 #ifndef _BCD_H
11 #define _BCD_H
12
bcd2bin(unsigned int val)13 static inline unsigned int bcd2bin(unsigned int val)
14 {
15 return ((val) & 0x0f) + ((val & 0xff) >> 4) * 10;
16 }
17
bin2bcd(unsigned int val)18 static inline unsigned int bin2bcd(unsigned int val)
19 {
20 return (((val / 10) << 4) | (val % 10));
21 }
22
23 #endif /* _BCD_H */
24