u-boot/include/hexdump.h

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lib: Add hexdump Often during debugging session it's very interesting to see what data we were dealing with. For example what we write or read to/from memory or peripherals. This change introduces functions that allow to dump binary data with one simple function invocation like: ------------------->8---------------- print_hex_dump_bytes("", DUMP_PREFIX_OFFSET, buf, len); ------------------->8---------------- which gives us the following: ------------------->8---------------- 00000000: f2 b7 c9 88 62 61 75 64 72 61 74 65 3d 31 31 35 ....baudrate=115 00000010: 32 30 30 00 62 6f 6f 74 61 72 67 73 3d 63 6f 6e 200.bootargs=con 00000020: 73 6f 6c 65 3d 74 74 79 53 33 2c 31 31 35 32 30 sole=ttyS3,11520 00000030: 30 6e 38 00 62 6f 6f 74 64 65 6c 61 79 3d 33 00 0n8.bootdelay=3. 00000040: 62 6f 6f 74 66 69 6c 65 3d 75 49 6d 61 67 65 00 bootfile=uImage. 00000050: 66 64 74 63 6f 6e 74 72 6f 6c 61 64 64 72 3d 39 fdtcontroladdr=9 00000060: 66 66 62 31 62 61 30 00 6c 6f 61 64 61 64 64 72 ffb1ba0.loadaddr 00000070: 3d 30 78 38 32 30 30 30 30 30 30 00 73 74 64 65 =0x82000000.stde 00000080: 72 72 3d 73 65 72 69 61 6c 30 40 65 30 30 32 32 rr=serial0@e0022 00000090: 30 30 30 00 73 74 64 69 6e 3d 73 65 72 69 61 6c 000.stdin=serial 000000a0: 30 40 65 30 30 32 32 30 30 30 00 73 74 64 6f 75 0@e0022000.stdou 000000b0: 74 3d 73 65 72 69 61 6c 30 40 65 30 30 32 32 30 t=serial0@e00220 000000c0: 30 30 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00.............. ... ------------------->8---------------- Source of hexdump.c was copied from Linux kernel v4.7-rc2. Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> Cc: Anatolij Gustschin <agust@denx.de> Cc: Mario Six <mario.six@gdsys.cc> Cc: Simon Glass <sjg@chromium.org> Cc: Tom Rini <trini@konsulko.com> Cc: Stefan Roese <sr@denx.de>
2018-06-05 14:17:57 +00:00
/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (C) 2018 Synopsys, Inc. All rights reserved.
*
*/
#ifndef HEXDUMP_H
#define HEXDUMP_H
#include <linux/ctype.h>
#include <linux/types.h>
enum {
DUMP_PREFIX_NONE,
DUMP_PREFIX_ADDRESS,
DUMP_PREFIX_OFFSET
};
extern const char hex_asc[];
#define hex_asc_lo(x) hex_asc[((x) & 0x0f)]
#define hex_asc_hi(x) hex_asc[((x) & 0xf0) >> 4]
static inline char *hex_byte_pack(char *buf, u8 byte)
{
*buf++ = hex_asc_hi(byte);
*buf++ = hex_asc_lo(byte);
return buf;
}
/**
* hex_to_bin - convert a hex digit to its real value
* @ch: ascii character represents hex digit
*
* hex_to_bin() converts one hex digit to its actual value or -1 in case of bad
* input.
*/
static inline int hex_to_bin(char ch)
{
if ((ch >= '0') && (ch <= '9'))
return ch - '0';
ch = tolower(ch);
if ((ch >= 'a') && (ch <= 'f'))
return ch - 'a' + 10;
return -1;
}
/**
* hex2bin - convert an ascii hexadecimal string to its binary representation
* @dst: binary result
* @src: ascii hexadecimal string
* @count: result length
*
* Return 0 on success, -1 in case of bad input.
*/
static inline int hex2bin(u8 *dst, const char *src, size_t count)
{
while (count--) {
int hi = hex_to_bin(*src++);
int lo = hex_to_bin(*src++);
if ((hi < 0) || (lo < 0))
return -1;
*dst++ = (hi << 4) | lo;
}
return 0;
}
/**
* bin2hex - convert binary data to an ascii hexadecimal string
* @dst: ascii hexadecimal result
* @src: binary data
* @count: binary data length
*/
static inline char *bin2hex(char *dst, const void *src, size_t count)
{
const unsigned char *_src = src;
while (count--)
dst = hex_byte_pack(dst, *_src++);
return dst;
}
int hex_dump_to_buffer(const void *buf, size_t len, int rowsize, int groupsize,
char *linebuf, size_t linebuflen, bool ascii);
void print_hex_dump(const char *prefix_str, int prefix_type, int rowsize,
int groupsize, const void *buf, size_t len, bool ascii);
void print_hex_dump_bytes(const char *prefix_str, int prefix_type,
const void *buf, size_t len);
#endif /* HEXDUMP_H */