1 /***************************************************************************
2 * Copyright (C) 2006 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) any later version. *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc., *
18 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
19 ***************************************************************************/
24 #include "xilinx_bit.h"
39 int read_section(FILE *input_file, int length_size, char section, u32 *buffer_length, u8 **buffer)
46 if ((length_size != 2) && (length_size != 4))
48 LOG_ERROR("BUG: length_size neither 2 nor 4");
49 return ERROR_PLD_FILE_LOAD_FAILED;
52 if ((read_count = fread(§ion_char, 1, 1, input_file)) != 1)
54 return ERROR_PLD_FILE_LOAD_FAILED;
57 if (section_char != section)
59 return ERROR_PLD_FILE_LOAD_FAILED;
62 if ((read_count = fread(length_buffer, 1, length_size, input_file)) != length_size)
64 return ERROR_PLD_FILE_LOAD_FAILED;
68 length = be_to_h_u32(length_buffer);
69 else /* (length_size == 2) */
70 length = be_to_h_u16(length_buffer);
73 *buffer_length = length;
75 *buffer = malloc(length);
77 if ((read_count = fread(*buffer, 1, length, input_file)) != length)
79 return ERROR_PLD_FILE_LOAD_FAILED;
85 int xilinx_read_bit_file(xilinx_bit_file_t *bit_file, char *filename)
88 struct stat input_stat;
91 if (!filename || !bit_file)
92 return ERROR_INVALID_ARGUMENTS;
94 if (stat(filename, &input_stat) == -1)
96 LOG_ERROR("couldn't stat() %s: %s", filename, strerror(errno));
97 return ERROR_PLD_FILE_LOAD_FAILED;
100 if (S_ISDIR(input_stat.st_mode))
102 LOG_ERROR("%s is a directory", filename);
103 return ERROR_PLD_FILE_LOAD_FAILED;
106 if (input_stat.st_size == 0){
107 LOG_ERROR("Empty file %s", filename);
108 return ERROR_PLD_FILE_LOAD_FAILED;
111 if (!(input_file = fopen(filename, "rb")))
113 LOG_ERROR("couldn't open %s: %s", filename, strerror(errno));
114 return ERROR_PLD_FILE_LOAD_FAILED;
117 if ((read_count = fread(bit_file->unknown_header, 1, 13, input_file)) != 13)
119 LOG_ERROR("couldn't read unknown_header from file '%s'", filename);
120 return ERROR_PLD_FILE_LOAD_FAILED;
123 if (read_section(input_file, 2, 'a', NULL, &bit_file->source_file) != ERROR_OK)
124 return ERROR_PLD_FILE_LOAD_FAILED;
126 if (read_section(input_file, 2, 'b', NULL, &bit_file->part_name) != ERROR_OK)
127 return ERROR_PLD_FILE_LOAD_FAILED;
129 if (read_section(input_file, 2, 'c', NULL, &bit_file->date) != ERROR_OK)
130 return ERROR_PLD_FILE_LOAD_FAILED;
132 if (read_section(input_file, 2, 'd', NULL, &bit_file->time) != ERROR_OK)
133 return ERROR_PLD_FILE_LOAD_FAILED;
135 if (read_section(input_file, 4, 'e', &bit_file->length, &bit_file->data) != ERROR_OK)
136 return ERROR_PLD_FILE_LOAD_FAILED;
138 LOG_DEBUG("bit_file: %s %s %s,%s %i", bit_file->source_file, bit_file->part_name,
139 bit_file->date, bit_file->time, bit_file->length);