From ae51f41d14f548d494ac41e0d21137c5a4c3f59c Mon Sep 17 00:00:00 2001 From: Iru Cai Date: Wed, 30 Oct 2019 14:21:52 +0800 Subject: import the U-Boot code and make it compile --- include/bcd.h | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100644 include/bcd.h (limited to 'include/bcd.h') diff --git a/include/bcd.h b/include/bcd.h new file mode 100644 index 0000000..9ecd328 --- /dev/null +++ b/include/bcd.h @@ -0,0 +1,23 @@ +/* Permission is hereby granted to copy, modify and redistribute this code + * in terms of the GNU Library General Public License, Version 2 or later, + * at your option. + */ + +/* inline functions to translate to/from binary and binary-coded decimal + * (frequently found in RTC chips). + */ + +#ifndef _BCD_H +#define _BCD_H + +static inline unsigned int bcd2bin(unsigned int val) +{ + return ((val) & 0x0f) + ((val & 0xff) >> 4) * 10; +} + +static inline unsigned int bin2bcd(unsigned int val) +{ + return (((val / 10) << 4) | (val % 10)); +} + +#endif /* _BCD_H */ -- cgit v1.2.3