mirror of
https://github.com/openharmony/third_party_Linux_Kernel.git
synced 2026-07-20 22:05:44 -04:00
maguangyao
23 lines
520 B
C
23 lines
520 B
C
#ifndef _BCD_H
|
|
#define _BCD_H
|
|
|
|
#include <linux/compiler.h>
|
|
|
|
#define bcd2bin(x) \
|
|
(__builtin_constant_p((u8 )(x)) ? \
|
|
const_bcd2bin(x) : \
|
|
_bcd2bin(x))
|
|
|
|
#define bin2bcd(x) \
|
|
(__builtin_constant_p((u8 )(x)) ? \
|
|
const_bin2bcd(x) : \
|
|
_bin2bcd(x))
|
|
|
|
#define const_bcd2bin(x) (((x) & 0x0f) + ((x) >> 4) * 10)
|
|
#define const_bin2bcd(x) ((((x) / 10) << 4) + (x) % 10)
|
|
|
|
unsigned _bcd2bin(unsigned char val) __attribute_const__;
|
|
unsigned char _bin2bcd(unsigned val) __attribute_const__;
|
|
|
|
#endif /* _BCD_H */
|