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/***************************************************************************
* Copyright (C) 2006 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "xilinx_bit.h"
#include "pld.h"
#include <helper/log.h>
#include <sys/stat.h>
static int read_section(FILE *input_file, int length_size, char section,
uint32_t *buffer_length, uint8_t **buffer)
{
uint8_t length_buffer[4];
int length;
char section_char;
int read_count;
if ((length_size != 2) && (length_size != 4))
{
LOG_ERROR("BUG: length_size neither 2 nor 4");
return ERROR_PLD_FILE_LOAD_FAILED;
}
if ((read_count = fread(§ion_char, 1, 1, input_file)) != 1)
{
return ERROR_PLD_FILE_LOAD_FAILED;
}
if (section_char != section)
{
return ERROR_PLD_FILE_LOAD_FAILED;
}
if ((read_count = fread(length_buffer, 1, length_size, input_file)) != length_size)
{
return ERROR_PLD_FILE_LOAD_FAILED;
}
if (length_size == 4)
length = be_to_h_u32(length_buffer);
else /* (length_size == 2) */
length = be_to_h_u16(length_buffer);
if (buffer_length)
*buffer_length = length;
*buffer = malloc(length);
if ((read_count = fread(*buffer, 1, length, input_file)) != length)
{
return ERROR_PLD_FILE_LOAD_FAILED;
}
return ERROR_OK;
}
int xilinx_read_bit_file(struct xilinx_bit_file *bit_file, const char *filename)
{
FILE *input_file;
struct stat input_stat;
int read_count;
if (!filename || !bit_file)
return ERROR_INVALID_ARGUMENTS;
if (stat(filename, &input_stat) == -1)
{
LOG_ERROR("couldn't stat() %s: %s", filename, strerror(errno));
return ERROR_PLD_FILE_LOAD_FAILED;
}
if (S_ISDIR(input_stat.st_mode))
{
LOG_ERROR("%s is a directory", filename);
return ERROR_PLD_FILE_LOAD_FAILED;
}
if (input_stat.st_size == 0) {
LOG_ERROR("Empty file %s", filename);
return ERROR_PLD_FILE_LOAD_FAILED;
}
if (!(input_file = fopen(filename, "rb")))
{
LOG_ERROR("couldn't open %s: %s", filename, strerror(errno));
return ERROR_PLD_FILE_LOAD_FAILED;
}
if ((read_count = fread(bit_file->unknown_header, 1, 13, input_file)) != 13)
{
LOG_ERROR("couldn't read unknown_header from file '%s'", filename);
return ERROR_PLD_FILE_LOAD_FAILED;
}
if (read_section(input_file, 2, 'a', NULL, &bit_file->source_file) != ERROR_OK)
return ERROR_PLD_FILE_LOAD_FAILED;
if (read_section(input_file, 2, 'b', NULL, &bit_file->part_name) != ERROR_OK)
return ERROR_PLD_FILE_LOAD_FAILED;
if (read_section(input_file, 2, 'c', NULL, &bit_file->date) != ERROR_OK)
return ERROR_PLD_FILE_LOAD_FAILED;
if (read_section(input_file, 2, 'd', NULL, &bit_file->time) != ERROR_OK)
return ERROR_PLD_FILE_LOAD_FAILED;
if (read_section(input_file, 4, 'e', &bit_file->length, &bit_file->data) != ERROR_OK)
return ERROR_PLD_FILE_LOAD_FAILED;
LOG_DEBUG("bit_file: %s %s %s,%s %" PRIi32 "", bit_file->source_file, bit_file->part_name,
bit_file->date, bit_file->time, bit_file->length);
fclose(input_file);
return ERROR_OK;
}
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