1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef _LINUX_HEX_H 3#define _LINUX_HEX_H 4 5#include <linux/types.h> 6 7extern const char hex_asc[]; 8#define hex_asc_lo(x) hex_asc[((x) & 0x0f)] 9#define hex_asc_hi(x) hex_asc[((x) & 0xf0) >> 4] 10 11static inline char *hex_byte_pack(char *buf, u8 byte) 12{ 13 *buf++ = hex_asc_hi(byte); 14 *buf++ = hex_asc_lo(byte); 15 return buf; 16} 17 18extern const char hex_asc_upper[]; 19#define hex_asc_upper_lo(x) hex_asc_upper[((x) & 0x0f)] 20#define hex_asc_upper_hi(x) hex_asc_upper[((x) & 0xf0) >> 4] 21 22static inline char *hex_byte_pack_upper(char *buf, u8 byte) 23{ 24 *buf++ = hex_asc_upper_hi(byte); 25 *buf++ = hex_asc_upper_lo(byte); 26 return buf; 27} 28 29extern int hex_to_bin(unsigned char ch); 30extern int __must_check hex2bin(u8 *dst, const char *src, size_t count); 31extern char *bin2hex(char *dst, const void *src, size_t count); 32 33bool mac_pton(const char *s, u8 *mac); 34 35#endif 36