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// SPDX-License-Identifier: GPL-2.0-or-later
/***************************************************************************
* Copyright (C) 2006 by Dominic Rath *
* Dominic.Rath@gmx.de *
***************************************************************************/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "xilinx_bit.h"
#include "pld.h"
#include <helper/log.h>
#include <helper/system.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;
}
read_count = fread(§ion_char, 1, 1, input_file);
if (read_count != 1)
return ERROR_PLD_FILE_LOAD_FAILED;
if (section_char != section)
return ERROR_PLD_FILE_LOAD_FAILED;
read_count = fread(length_buffer, 1, length_size, input_file);
if (read_count != 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);
read_count = fread(*buffer, 1, length, input_file);
if (read_count != 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;
int read_count;
if (!filename || !bit_file)
return ERROR_COMMAND_SYNTAX_ERROR;
input_file = fopen(filename, "rb");
if (!input_file) {
LOG_ERROR("couldn't open %s: %s", filename, strerror(errno));
return ERROR_PLD_FILE_LOAD_FAILED;
}
bit_file->source_file = NULL;
bit_file->part_name = NULL;
bit_file->date = NULL;
bit_file->time = NULL;
bit_file->data = NULL;
read_count = fread(bit_file->unknown_header, 1, 13, input_file);
if (read_count != 13) {
LOG_ERROR("couldn't read unknown_header from file '%s'", filename);
fclose(input_file);
return ERROR_PLD_FILE_LOAD_FAILED;
}
if (read_section(input_file, 2, 'a', NULL, &bit_file->source_file) != ERROR_OK) {
xilinx_free_bit_file(bit_file);
fclose(input_file);
return ERROR_PLD_FILE_LOAD_FAILED;
}
if (read_section(input_file, 2, 'b', NULL, &bit_file->part_name) != ERROR_OK) {
xilinx_free_bit_file(bit_file);
fclose(input_file);
return ERROR_PLD_FILE_LOAD_FAILED;
}
if (read_section(input_file, 2, 'c', NULL, &bit_file->date) != ERROR_OK) {
xilinx_free_bit_file(bit_file);
fclose(input_file);
return ERROR_PLD_FILE_LOAD_FAILED;
}
if (read_section(input_file, 2, 'd', NULL, &bit_file->time) != ERROR_OK) {
xilinx_free_bit_file(bit_file);
fclose(input_file);
return ERROR_PLD_FILE_LOAD_FAILED;
}
if (read_section(input_file, 4, 'e', &bit_file->length, &bit_file->data) != ERROR_OK) {
xilinx_free_bit_file(bit_file);
fclose(input_file);
return ERROR_PLD_FILE_LOAD_FAILED;
}
LOG_DEBUG("bit_file: %s %s %s,%s %" PRIu32 "", bit_file->source_file, bit_file->part_name,
bit_file->date, bit_file->time, bit_file->length);
fclose(input_file);
return ERROR_OK;
}
void xilinx_free_bit_file(struct xilinx_bit_file *bit_file)
{
free(bit_file->source_file);
free(bit_file->part_name);
free(bit_file->date);
free(bit_file->time);
free(bit_file->data);
}
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