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 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
19 ***************************************************************************/
25 #include "xilinx_bit.h"
27 #include <helper/log.h>
32 static int read_section(FILE *input_file
, int length_size
, char section
,
33 uint32_t *buffer_length
, uint8_t **buffer
)
35 uint8_t length_buffer
[4];
40 if ((length_size
!= 2) && (length_size
!= 4)) {
41 LOG_ERROR("BUG: length_size neither 2 nor 4");
42 return ERROR_PLD_FILE_LOAD_FAILED
;
45 read_count
= fread(§ion_char
, 1, 1, input_file
);
47 return ERROR_PLD_FILE_LOAD_FAILED
;
49 if (section_char
!= section
)
50 return ERROR_PLD_FILE_LOAD_FAILED
;
52 read_count
= fread(length_buffer
, 1, length_size
, input_file
);
53 if (read_count
!= length_size
)
54 return ERROR_PLD_FILE_LOAD_FAILED
;
57 length
= be_to_h_u32(length_buffer
);
58 else /* (length_size == 2) */
59 length
= be_to_h_u16(length_buffer
);
62 *buffer_length
= length
;
64 *buffer
= malloc(length
);
66 read_count
= fread(*buffer
, 1, length
, input_file
);
67 if (read_count
!= length
)
68 return ERROR_PLD_FILE_LOAD_FAILED
;
73 int xilinx_read_bit_file(struct xilinx_bit_file
*bit_file
, const char *filename
)
76 struct stat input_stat
;
79 if (!filename
|| !bit_file
)
80 return ERROR_COMMAND_SYNTAX_ERROR
;
82 if (stat(filename
, &input_stat
) == -1) {
83 LOG_ERROR("couldn't stat() %s: %s", filename
, strerror(errno
));
84 return ERROR_PLD_FILE_LOAD_FAILED
;
87 if (S_ISDIR(input_stat
.st_mode
)) {
88 LOG_ERROR("%s is a directory", filename
);
89 return ERROR_PLD_FILE_LOAD_FAILED
;
92 if (input_stat
.st_size
== 0) {
93 LOG_ERROR("Empty file %s", filename
);
94 return ERROR_PLD_FILE_LOAD_FAILED
;
97 input_file
= fopen(filename
, "rb");
98 if (input_file
== NULL
) {
99 LOG_ERROR("couldn't open %s: %s", filename
, strerror(errno
));
100 return ERROR_PLD_FILE_LOAD_FAILED
;
103 read_count
= fread(bit_file
->unknown_header
, 1, 13, input_file
);
104 if (read_count
!= 13) {
105 LOG_ERROR("couldn't read unknown_header from file '%s'", filename
);
106 return ERROR_PLD_FILE_LOAD_FAILED
;
109 if (read_section(input_file
, 2, 'a', NULL
, &bit_file
->source_file
) != ERROR_OK
)
110 return ERROR_PLD_FILE_LOAD_FAILED
;
112 if (read_section(input_file
, 2, 'b', NULL
, &bit_file
->part_name
) != ERROR_OK
)
113 return ERROR_PLD_FILE_LOAD_FAILED
;
115 if (read_section(input_file
, 2, 'c', NULL
, &bit_file
->date
) != ERROR_OK
)
116 return ERROR_PLD_FILE_LOAD_FAILED
;
118 if (read_section(input_file
, 2, 'd', NULL
, &bit_file
->time
) != ERROR_OK
)
119 return ERROR_PLD_FILE_LOAD_FAILED
;
121 if (read_section(input_file
, 4, 'e', &bit_file
->length
, &bit_file
->data
) != ERROR_OK
)
122 return ERROR_PLD_FILE_LOAD_FAILED
;
124 LOG_DEBUG("bit_file: %s %s %s,%s %" PRIi32
"", bit_file
->source_file
, bit_file
->part_name
,
125 bit_file
->date
, bit_file
->time
, bit_file
->length
);
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