mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-27 05:23:34 +00:00
f8c987f8f1
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>
91 lines
2 KiB
C
91 lines
2 KiB
C
/* 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 */
|