| Stefan Roese | 758c037 | 2007-10-21 08:16:12 +0200 | [diff] [blame] | 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 | |
| Albin Tonnerre | e84aba1 | 2009-08-13 15:31:11 +0200 | [diff] [blame] | 6 | /* inline functions to translate to/from binary and binary-coded decimal |
| 7 | * (frequently found in RTC chips). |
| Stefan Roese | 758c037 | 2007-10-21 08:16:12 +0200 | [diff] [blame] | 8 | */ |
| 9 | |
| 10 | #ifndef _BCD_H |
| 11 | #define _BCD_H |
| 12 | |
| Albin Tonnerre | e84aba1 | 2009-08-13 15:31:11 +0200 | [diff] [blame] | 13 | #include <linux/types.h> |
| Stefan Roese | 758c037 | 2007-10-21 08:16:12 +0200 | [diff] [blame] | 14 | |
| Albin Tonnerre | e84aba1 | 2009-08-13 15:31:11 +0200 | [diff] [blame] | 15 | static inline unsigned int bcd2bin(u8 val) |
| 16 | { |
| 17 | return ((val) & 0x0f) + ((val) >> 4) * 10; |
| 18 | } |
| 19 | |
| 20 | static inline u8 bin2bcd (unsigned int val) |
| 21 | { |
| 22 | return (((val / 10) << 4) | (val % 10)); |
| 23 | } |
| Stefan Roese | 758c037 | 2007-10-21 08:16:12 +0200 | [diff] [blame] | 24 | |
| 25 | #endif /* _BCD_H */ |