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