Remove support for the GPL incompatible FTDI D2XX library
[openocd.git] / src / pld / xilinx_bit.c
1 /***************************************************************************
2 * Copyright (C) 2006 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
4 * *
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. *
9 * *
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. *
14 * *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program. If not, see <http://www.gnu.org/licenses/>. *
17 ***************************************************************************/
18
19 #ifdef HAVE_CONFIG_H
20 #include "config.h"
21 #endif
22
23 #include "xilinx_bit.h"
24 #include "pld.h"
25 #include <helper/log.h>
26
27 #include <sys/stat.h>
28
29
30 static int read_section(FILE *input_file, int length_size, char section,
31 uint32_t *buffer_length, uint8_t **buffer)
32 {
33 uint8_t length_buffer[4];
34 int length;
35 char section_char;
36 int read_count;
37
38 if ((length_size != 2) && (length_size != 4)) {
39 LOG_ERROR("BUG: length_size neither 2 nor 4");
40 return ERROR_PLD_FILE_LOAD_FAILED;
41 }
42
43 read_count = fread(&section_char, 1, 1, input_file);
44 if (read_count != 1)
45 return ERROR_PLD_FILE_LOAD_FAILED;
46
47 if (section_char != section)
48 return ERROR_PLD_FILE_LOAD_FAILED;
49
50 read_count = fread(length_buffer, 1, length_size, input_file);
51 if (read_count != length_size)
52 return ERROR_PLD_FILE_LOAD_FAILED;
53
54 if (length_size == 4)
55 length = be_to_h_u32(length_buffer);
56 else /* (length_size == 2) */
57 length = be_to_h_u16(length_buffer);
58
59 if (buffer_length)
60 *buffer_length = length;
61
62 *buffer = malloc(length);
63
64 read_count = fread(*buffer, 1, length, input_file);
65 if (read_count != length)
66 return ERROR_PLD_FILE_LOAD_FAILED;
67
68 return ERROR_OK;
69 }
70
71 int xilinx_read_bit_file(struct xilinx_bit_file *bit_file, const char *filename)
72 {
73 FILE *input_file;
74 struct stat input_stat;
75 int read_count;
76
77 if (!filename || !bit_file)
78 return ERROR_COMMAND_SYNTAX_ERROR;
79
80 if (stat(filename, &input_stat) == -1) {
81 LOG_ERROR("couldn't stat() %s: %s", filename, strerror(errno));
82 return ERROR_PLD_FILE_LOAD_FAILED;
83 }
84
85 if (S_ISDIR(input_stat.st_mode)) {
86 LOG_ERROR("%s is a directory", filename);
87 return ERROR_PLD_FILE_LOAD_FAILED;
88 }
89
90 if (input_stat.st_size == 0) {
91 LOG_ERROR("Empty file %s", filename);
92 return ERROR_PLD_FILE_LOAD_FAILED;
93 }
94
95 input_file = fopen(filename, "rb");
96 if (input_file == NULL) {
97 LOG_ERROR("couldn't open %s: %s", filename, strerror(errno));
98 return ERROR_PLD_FILE_LOAD_FAILED;
99 }
100
101 read_count = fread(bit_file->unknown_header, 1, 13, input_file);
102 if (read_count != 13) {
103 LOG_ERROR("couldn't read unknown_header from file '%s'", filename);
104 return ERROR_PLD_FILE_LOAD_FAILED;
105 }
106
107 if (read_section(input_file, 2, 'a', NULL, &bit_file->source_file) != ERROR_OK)
108 return ERROR_PLD_FILE_LOAD_FAILED;
109
110 if (read_section(input_file, 2, 'b', NULL, &bit_file->part_name) != ERROR_OK)
111 return ERROR_PLD_FILE_LOAD_FAILED;
112
113 if (read_section(input_file, 2, 'c', NULL, &bit_file->date) != ERROR_OK)
114 return ERROR_PLD_FILE_LOAD_FAILED;
115
116 if (read_section(input_file, 2, 'd', NULL, &bit_file->time) != ERROR_OK)
117 return ERROR_PLD_FILE_LOAD_FAILED;
118
119 if (read_section(input_file, 4, 'e', &bit_file->length, &bit_file->data) != ERROR_OK)
120 return ERROR_PLD_FILE_LOAD_FAILED;
121
122 LOG_DEBUG("bit_file: %s %s %s,%s %" PRIi32 "", bit_file->source_file, bit_file->part_name,
123 bit_file->date, bit_file->time, bit_file->length);
124
125 fclose(input_file);
126
127 return ERROR_OK;
128 }