David Venhoff
cfcea9ee67
Based off b80915eb99
and compacted into a single commit so that it will fit on the uni git server
24 lines
559 B
C
24 lines
559 B
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#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 */
|