123 lines
2.9 KiB
C
123 lines
2.9 KiB
C
/****************************************************************************
|
|
* apps/system/i2c/i2c_hexdump.c
|
|
*
|
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
|
* contributor license agreements. See the NOTICE file distributed with
|
|
* this work for additional information regarding copyright ownership. The
|
|
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
|
* "License"); you may not use this file except in compliance with the
|
|
* License. You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
* License for the specific language governing permissions and limitations
|
|
* under the License.
|
|
*
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <stdio.h>
|
|
#include <inttypes.h>
|
|
#include <ctype.h>
|
|
|
|
#include "i2ctool.h"
|
|
|
|
/****************************************************************************
|
|
* Private Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: hexdump_line
|
|
****************************************************************************/
|
|
|
|
static int hexdump_line(FILE *ostream, void *addr, int len)
|
|
{
|
|
int i;
|
|
uint8_t *p;
|
|
|
|
if (len <= 0)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/* print at most 16 chars */
|
|
|
|
if (len > 16)
|
|
{
|
|
len = 16;
|
|
}
|
|
|
|
/* print hex */
|
|
|
|
for (i = 0, p = addr; i < len; ++i, ++p)
|
|
{
|
|
if (i % 8 == 0)
|
|
{
|
|
fputc(' ', ostream);
|
|
}
|
|
|
|
fprintf(ostream, "%02x ", *p);
|
|
}
|
|
|
|
/* pad if necessary */
|
|
|
|
if (i <= 8)
|
|
{
|
|
fputc(' ', ostream);
|
|
}
|
|
|
|
while (i++ < 16)
|
|
{
|
|
fputs(" ", ostream);
|
|
}
|
|
|
|
/* print ASCII */
|
|
|
|
fputs(" |", ostream);
|
|
for (i = 0, p = addr; i < len; ++i, ++p)
|
|
{
|
|
fputc(isprint(*p) ? *p : '.', ostream);
|
|
}
|
|
|
|
/* pad if necessary */
|
|
|
|
while (i++ < 16)
|
|
{
|
|
fputc(' ', ostream);
|
|
}
|
|
|
|
fputs("|\n", ostream);
|
|
return len;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
void i2ctool_hexdump(FILE *outstream, void *addr, int len)
|
|
{
|
|
int nbytes;
|
|
uint8_t *p = addr;
|
|
|
|
/* print one line at a time */
|
|
|
|
while (len > 0)
|
|
{
|
|
/* print address */
|
|
|
|
fprintf(outstream, "%08tx ", p - (uint8_t *)addr);
|
|
|
|
/* print one line of data */
|
|
|
|
nbytes = hexdump_line(outstream, p, len);
|
|
len -= nbytes;
|
|
p += nbytes;
|
|
}
|
|
}
|