/* 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 bcd_is_valid(x)					\		const_bcd_is_valid(x) #define const_bcd2bin(x)	(((x) & 0x0f) + ((x) >> 4) * 10)#define const_bin2bcd(x)	((((x) / 10) << 4) + (x) % 10)#define const_bcd_is_valid(x)	(((x) & 0x0f) < 10 && ((x) >> 4) < 10) unsigned _bcd2bin(unsigned char val) __attribute_const__;unsigned char _bin2bcd(unsigned val) __attribute_const__; #endif /* _BCD_H */