projects / J-u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| f8c987f8 AB |
1 | /* SPDX-License-Identifier: GPL-2.0+ */ |
| 2 | /* | |
| 3 | * Copyright (C) 2018 Synopsys, Inc. All rights reserved. | |
| 4 | * | |
| 5 | */ | |
| 6 | ||
| 7 | #ifndef HEXDUMP_H | |
| 8 | #define HEXDUMP_H | |
| 9 | ||
| 10 | #include <linux/ctype.h> | |
| 11 | #include <linux/types.h> | |
| 12 | ||
| 13 | enum { | |
| 14 | DUMP_PREFIX_NONE, | |
| 15 | DUMP_PREFIX_ADDRESS, | |
| 16 | DUMP_PREFIX_OFFSET | |
| 17 | }; | |
| 18 | ||
| 19 | extern const char hex_asc[]; | |
| 20 | #define hex_asc_lo(x) hex_asc[((x) & 0x0f)] | |
| 21 | #define hex_asc_hi(x) hex_asc[((x) & 0xf0) >> 4] | |
| 22 | ||
| 23 | static inline char *hex_byte_pack(char *buf, u8 byte) | |
| 24 | { | |
| 25 | *buf++ = hex_asc_hi(byte); | |
| 26 | *buf++ = hex_asc_lo(byte); | |
| 27 | return buf; | |
| 28 | } | |
| 29 | ||
| 30 | /** | |
| 31 | * hex_to_bin - convert a hex digit to its real value | |
| 32 | * @ch: ascii character represents hex digit | |
| 33 | * | |
| 34 | * hex_to_bin() converts one hex digit to its actual value or -1 in case of bad | |
| 35 | * input. | |
| 36 | */ | |
| 37 | static inline int hex_to_bin(char ch) | |
| 38 | { | |
| 39 | if ((ch >= '0') && (ch <= '9')) | |
| 40 | return ch - '0'; | |
| 41 | ch = tolower(ch); | |
| 42 | if ((ch >= 'a') && (ch <= 'f')) | |
| 43 | return ch - 'a' + 10; | |
| 44 | return -1; | |
| 45 | } | |
| 46 | ||
| 47 | /** | |
| 48 | * hex2bin - convert an ascii hexadecimal string to its binary representation | |
| 49 | * @dst: binary result | |
| 50 | * @src: ascii hexadecimal string | |
| 51 | * @count: result length | |
| 52 | * | |
| 53 | * Return 0 on success, -1 in case of bad input. | |
| 54 | */ | |
| 55 | static inline int hex2bin(u8 *dst, const char *src, size_t count) | |
| 56 | { | |
| 57 | while (count--) { | |
| 58 | int hi = hex_to_bin(*src++); | |
| 59 | int lo = hex_to_bin(*src++); | |
| 60 | ||
| 61 | if ((hi < 0) || (lo < 0)) | |
| 62 | return -1; | |
| 63 | ||
| 64 | *dst++ = (hi << 4) | lo; | |
| 65 | } | |
| 66 | return 0; | |
| 67 | } | |
| 68 | ||
| 69 | /** | |
| 70 | * bin2hex - convert binary data to an ascii hexadecimal string | |
| 71 | * @dst: ascii hexadecimal result | |
| 72 | * @src: binary data | |
| 73 | * @count: binary data length | |
| 74 | */ | |
| 75 | static inline char *bin2hex(char *dst, const void *src, size_t count) | |
| 76 | { | |
| 77 | const unsigned char *_src = src; | |
| 78 | ||
| 79 | while (count--) | |
| 80 | dst = hex_byte_pack(dst, *_src++); | |
| 81 | return dst; | |
| 82 | } | |
| 83 | ||
| 84 | int hex_dump_to_buffer(const void *buf, size_t len, int rowsize, int groupsize, | |
| 85 | char *linebuf, size_t linebuflen, bool ascii); | |
| 86 | void print_hex_dump(const char *prefix_str, int prefix_type, int rowsize, | |
| 87 | int groupsize, const void *buf, size_t len, bool ascii); | |
| 88 | void print_hex_dump_bytes(const char *prefix_str, int prefix_type, | |
| 89 | const void *buf, size_t len); | |
| 90 | ||
| 91 | #endif /* HEXDUMP_H */ |